CN117419098B - Rotating mechanism and foldable electronic device - Google Patents

Rotating mechanism and foldable electronic device Download PDF

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Publication number
CN117419098B
CN117419098B CN202311744179.7A CN202311744179A CN117419098B CN 117419098 B CN117419098 B CN 117419098B CN 202311744179 A CN202311744179 A CN 202311744179A CN 117419098 B CN117419098 B CN 117419098B
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CN
China
Prior art keywords
damping
swing arm
fixing frame
pressing block
base
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202311744179.7A
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Chinese (zh)
Other versions
CN117419098A (en
Inventor
金开放
龚文强
陈瑞豪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honor Device Co Ltd
Original Assignee
Honor Device Co Ltd
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Filing date
Publication date
Application filed by Honor Device Co Ltd filed Critical Honor Device Co Ltd
Priority to CN202311744179.7A priority Critical patent/CN117419098B/en
Publication of CN117419098A publication Critical patent/CN117419098A/en
Application granted granted Critical
Publication of CN117419098B publication Critical patent/CN117419098B/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00Pivots; Pivotal connections
    • F16C11/04Pivotal connections
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00Pivots; Pivotal connections
    • F16C11/04Pivotal connections
    • F16C11/12Pivotal connections incorporating flexible connections, e.g. leaf springs
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16Constructional details or arrangements
    • G06F1/1613Constructional details or arrangements for portable computers
    • G06F1/1633Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1675Miscellaneous details related to the relative movement between the different enclosures or enclosure parts
    • G06F1/1681Details related solely to hinges
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/02Constructional features of telephone sets
    • H04M1/0202Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0208Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
    • H04M1/0214Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/02Constructional features of telephone sets
    • H04M1/0202Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026Details of the structure or mounting of specific components
    • H04M1/0266Details of the structure or mounting of specific components for a display module assembly
    • H04M1/0268Details of the structure or mounting of specific components for a display module assembly including a flexible display panel
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00Casings, cabinets or drawers for electric apparatus
    • H05K5/02Details
    • H05K5/0217Mechanical details of casings
    • H05K5/0226Hinges

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Telephone Set Structure (AREA)

Abstract

The application provides a rotating mechanism and a foldable electronic device. The rotating mechanism comprises a base, a first fixing frame, a first damping swing arm and a first damping structure. One end of the first damping swing arm is rotationally connected with the base, and the other end of the first damping swing arm is in sliding connection with the first fixing frame. The first elastic piece and the first pressing block of the first damping structure are both arranged on the first damping swing arm, and the first pressing block is arranged on one side of the first elastic piece. One end of the first connecting rod is rotationally connected with the first pressing block, and the other end of the first connecting rod is rotationally connected with the first fixing frame. When the rotating mechanism is in an unfolding state and a folding state, the length direction of the first connecting rod is intersected with the length direction of the base, the first elastic piece is elastically compressed, the first connecting rod abuts against the first pressing block, the first pressing block abuts against the first damping swing arm, the first damping swing arm abuts against the first fixing frame, and the first fixing frame is enabled to be subjected to damping force. The rotating mechanism can solve the technical problems that in the prior art, damping force of the rotating mechanism is unstable, and the opening and closing hand feeling is poor.

Description

Rotating mechanism and foldable electronic device
Technical Field
The application relates to the technical field of electronic products, in particular to a rotating mechanism and foldable electronic equipment.
Background
With the development of technology, the appearance (ID) of electronic devices (such as mobile phones and tablet computers) tends to be developed from a board straightening machine to a folding machine. The folding machine has a large-area screen in an opening state, so that the visual experience of consumers is fully satisfied, and the folding machine is small in size and convenient to carry in a closing state. The rotating mechanism is a core structure for realizing the unfolding and folding of the folding machine. Damping structure in the slewing mechanism can realize damping feel. The damping structures of the prior art mostly provide damping forces by means of a concave-convex wheel. However, the cam in the damping structure is always rubbed in the rotating process, and the engagement surface of the cam is easy to wear, so that the damping force provided by the concave-convex wheel is unstable, and the opening and closing hand feeling of the folding machine can be influenced.
Disclosure of Invention
The application provides a rotary mechanism and foldable electronic equipment, can solve among the prior art damping force of rotary mechanism unstable, open and shut the technical problem that feel is not good.
In a first aspect, the present application provides a rotary mechanism. The rotating mechanism is applied to the foldable electronic equipment. The foldable electronic device includes a first housing, a second housing, and a display screen. The rotating mechanism is arranged between the first shell and the second shell and is fixedly connected with the first shell and the second shell. The display screen is installed in first casing, second casing and slewing mechanism. Wherein the foldable portion of the display screen is disposed opposite the rotating mechanism. The first shell and the second shell rotate relatively through the rotating mechanism, so that the foldable part of the display screen is driven to bend, and the display screen is folded.
The rotating mechanism comprises a base, a first fixing frame, a first damping swing arm, a second fixing frame and a second damping swing arm. The first fixing frame and the first damping swing arm are arranged on one side of the base in the width direction. One end of the first damping swing arm is installed on the base and is rotationally connected with the base, and the other end of the first damping swing arm is in sliding connection with the first fixing frame. When the first fixing frame rotates relative to the base, the first damping swing arm is driven to rotate relative to the base, and slides along the width direction of the first fixing frame relative to the first fixing frame.
The second fixing frame and the second damping swing arm are arranged on the other side of the base in the width direction. Along the width direction of base, the second mount with first mount sets up relatively, the second damping swing arm with first damping swing arm sets up relatively. One end of the second damping swing arm is rotationally connected with the base, and the other end of the second damping swing arm is in sliding connection with the second fixing frame. When the second fixing frame rotates relative to the base, the second damping swing arm is driven to rotate relative to the base, and slides along the width direction of the second fixing frame relative to the second fixing frame.
The first fixing frame and the second fixing frame are opposite in rotation direction, and the first damping swing arm is opposite in rotation direction to the second damping swing arm.
The rotating mechanism has an extended state, a semi-extended state, and a collapsed state. When the rotating mechanism is in a unfolding state, the first fixing frame and the second fixing frame are unfolded relatively, and the first damping swing arm and the second damping swing arm are unfolded relatively. The included angle between the first damping swing arm and the second damping swing arm is approximately 180 degrees. When the rotating mechanism is in a folding state, the first fixing frame and the second fixing frame are relatively folded, and the first damping swing arm and the second damping swing arm are relatively unfolded. The included angle between the first damping swing arm and the second damping swing arm is approximately 180 degrees.
When the rotating mechanism is in a semi-unfolding state, the first fixing frame and the second fixing frame are arranged at an included angle, and the first damping swing arm and the second damping swing arm are arranged at an included angle. In this embodiment, the included angle between the first fixing frame and the second fixing frame is approximately 90 degrees. In other embodiments, the angle between the first mount and the second mount may be slightly greater than 90 degrees, or slightly less than 90 degrees.
When the rotating mechanism is in a folding state, the first fixing frame and the second fixing frame are folded relatively, and the first damping swing arm and the second damping swing arm are folded relatively. The first fixing frame and the second fixing frame are arranged approximately in parallel. That is, the included angle between the first fixing frame and the second fixing frame is approximately 0 degrees.
It can be understood that the included angle between the first fixing frame and the base when the rotating mechanism is in the semi-unfolding state is larger than the included angle between the first fixing frame and the base when the rotating mechanism is in the folding state, and smaller than the included angle between the first fixing frame and the base when the rotating mechanism is in the unfolding state.
The rotating mechanism further comprises a first damping structure. The first damping structure comprises a first elastic piece, a first connecting rod and a first pressing block. The first elastic piece and the first pressing block are both installed on the first damping swing arm. The elastic compression direction of the first elastic piece is consistent with the length direction of the base. The first pressing block is arranged on one side of the first elastic piece. One end of the first connecting rod is rotationally connected with the first pressing block, and the other end of the first connecting rod is rotationally connected with the first fixing frame.
The first elastic piece is elastically compressed and abuts against the first pressing block, the first pressing block abuts against the first connecting rod and receives the reaction force of the first connecting rod, so that the first pressing block abuts against the first damping swing arm, the first damping swing arm abuts against the first fixing frame, and the first fixing frame receives a first damping force.
When the rotating mechanism is switched from the unfolding state or the folding state to the semi-unfolding state, the direction of the supporting force of the first pressing block on the first damping swing arm is opposite to the sliding direction of the first damping swing arm relative to the first fixing frame. The direction of the first damping force is opposite to the rotation direction of the first fixing frame.
The first damping structure comprises a first elastic piece, a first connecting rod and a first pressing block. The first elastic piece and the first pressing block are both arranged on the first damping swing arm, and the elastic deformation direction of the first elastic piece is consistent with the length direction of the base. Along the length direction of the base, the first pressing block is arranged on one side of the first elastic piece and is propped against the first elastic piece. One end of the first connecting rod is rotationally connected with the first pressing block, and the other end of the first connecting rod is rotationally connected with the first fixing frame.
When the rotating mechanism is in the unfolding state and the folding state, the length direction of the first connecting rod is intersected with the length direction of the base, the first elastic piece is elastically compressed and abuts against the first pressing block, the first pressing block abuts against the first connecting rod and receives the reaction force of the first connecting rod, so that the first pressing block abuts against the first damping swing arm, the first damping swing arm abuts against the first fixing frame, and the first fixing frame receives damping force.
The damping force that first mount received can prevent the rotation of first mount to for the user provides damping feel, promotes user's use experience. The rotating mechanism provided in this embodiment provides a damping force by applying elastic deformation of the first elastic member to the first damping swing arm through the first pressing block and the first connecting rod and then to the first fixing frame. The first pressing block, the first connecting rod and the first elastic piece are small in abrasion in the moving process, and the damping force provided by the first damping mechanism is stable under the whole service life of the rotating mechanism, so that the using hand feeling of a user can be improved, and the service life of the rotating mechanism is prolonged. That is, the rotating mechanism provided in this embodiment can avoid damping force attenuation caused by abrasion of the first damping structure, thereby affecting the opening and closing feel. Meanwhile, the rotating mechanism provided by the embodiment has lower requirements on the machining precision of the first damping structure, can simplify the machining process and plays a role in saving cost.
In a possible embodiment, the first fixing frame includes a first side surface and a second side surface, the first side surface and the second side surface are disposed opposite to each other along a width direction of the first fixing frame, and the second side surface faces the base. The first connecting rod comprises a first end and a second end, the first end and the second end are oppositely arranged along the extending direction of the first connecting rod, the first end is rotationally connected with the first pressing block, and the second end is rotationally connected with the first fixing frame;
When the rotating mechanism is in the unfolding state, the first connecting rod inclines towards the direction of the first side surface from the first end to the second end. At this time, the direction of the supporting force of the first pressing block on the first damping swing arm faces to the second side surface.
When the rotating mechanism is in the folded state, the first connecting rod inclines towards the direction of the second side surface from the first end to the second end. At this time, the direction of the supporting force of the first pressing block on the first damping swing arm faces to the first side surface.
When the rotating mechanism is in the semi-unfolding state, the extending direction of the first connecting rod is parallel to the length direction of the base.
In a possible implementation manner, when the rotating mechanism is switched from the unfolded state to the folded state, the first damping swing arm slides towards the first side surface direction relative to the first fixing frame. When the rotating mechanism is switched from the folding state to the unfolding state, the first damping swing arm slides towards the second side surface direction relative to the first fixing frame.
When the rotating mechanism is switched from the unfolding state to the half unfolding state, the direction of the supporting force of the first pressing block on the first damping swing arm faces to the second side surface, and the sliding direction of the first pressing block relative to the first fixing frame is opposite to the sliding direction of the first damping swing arm. At this time, the damping force received by the first fixing frame is opposite to the rotation direction of the first fixing frame, and the acting force provided by the first damping structure can prevent the rotation of the first fixing frame, so that damping handfeel can be provided for a user.
And, along with rotating mechanism rotates to half expansion state gradually from expansion state, first connecting rod rotates, and the contained angle with the length direction of first mount is smaller and smaller, and the effort of first connecting rod to first briquetting is smaller and smaller at the width direction's of first mount component, and first briquetting is smaller and smaller to the holding power of first damping swing arm, and the damping force that first mount received reduces gradually to can avoid the damping force that first mount received too big, and make rotating mechanism be difficult to rotate to half expansion state.
When the rotating mechanism is in a semi-unfolding state, the component force of the acting force of the first connecting rod on the first pressing block in the width direction of the first fixing frame is 0, and the damping force received by the first fixing frame is 0.
When the rotating mechanism is switched from the semi-unfolding state to the folding state, the first connecting rod rotates, the included angle between the first connecting rod and the length direction of the first fixing frame is gradually increased, the component force of the acting force of the first connecting rod on the first pressing block in the width direction of the first fixing frame is gradually increased, and the damping force borne by the first fixing frame is gradually increased.
At this time, the direction of the supporting force of the first pressing block on the first damping swing arm faces the second side surface, and the sliding direction of the supporting force of the first pressing block on the first damping swing arm is the same as the sliding direction of the first damping swing arm relative to the first fixing frame. The damping force applied to the first fixing frame has the same direction as the rotation direction of the first fixing frame. The damping force applied to the first mount may be understood as a thrust force pushing the first mount to rotate. That is, when the rotating mechanism is switched from the half-unfolding state to the folding state, the first damping structure can push the first fixing frame to rotate, so that the rotating mechanism can be promoted to be switched to the folding state, and the rotating mechanism is more convenient to fold.
When the rotating mechanism is switched from the folding state to the semi-unfolding state, the direction of the supporting force of the first pressing block on the first damping swing arm faces to the first side surface, and the sliding direction of the first pressing block relative to the first fixing frame is opposite to the sliding direction of the first damping swing arm. At this time, the damping force received by the first fixing frame is opposite to the rotation direction of the first fixing frame, and the acting force provided by the first damping structure can prevent the rotation of the first fixing frame, so that damping handfeel can be provided for a user.
Along with rotating mechanism rotates to half expansion state gradually from folding state, and the contained angle with the length direction of first mount is smaller and smaller, and the effort of first connecting rod to first briquetting is smaller and smaller at the width direction's of first mount component, and first briquetting is smaller and smaller to the holding power of first damping swing arm, and the damping force that first mount received reduces gradually to can avoid the damping force that first mount received too big, and make rotating mechanism be difficult to rotate to half expansion state. When the rotating mechanism is in a semi-unfolding state, the component force of the acting force of the first connecting rod on the first pressing block in the width direction of the first fixing frame is 0, and the damping force received by the first fixing frame is 0.
When the rotating mechanism is switched from the semi-unfolding state to the unfolding state, the first connecting rod rotates, the included angle between the first connecting rod and the length direction of the first fixing frame is gradually increased, the component force of the acting force of the first connecting rod on the first pressing block in the width direction of the first fixing frame is gradually increased, and the damping force borne by the first fixing frame is gradually increased. At this time, the direction of the supporting force of the first pressing block on the first damping swing arm faces the first side surface, and the sliding direction of the supporting force and the first damping swing arm relative to the first fixing frame is the same. The damping force applied to the first fixing frame has the same direction as the rotation direction of the first fixing frame. The damping force applied to the first mount may be understood as a thrust force pushing the first mount to rotate.
That is, when the rotating mechanism is switched from the half-unfolding state to the unfolding state, the first damping structure can push the first fixing frame to rotate, so that the rotating mechanism can be promoted to be switched to the unfolding state, and the rotating mechanism is more convenient to unfold.
In a possible implementation manner, the first damping structure further comprises a second pressing block and a second connecting rod, the second pressing block is arranged on one side, opposite to the first pressing block, of the first elastic piece, one end of the second connecting rod is rotationally connected with the second pressing block, and the other end of the second connecting rod is rotationally connected with the first fixing frame.
When the rotating mechanism is in the unfolding state and the folding state, the length direction of the second connecting rod is intersected with the length direction of the base, the first elastic piece is elastically compressed and supports against the second pressing block, the second pressing block supports against the second connecting rod and receives the reaction force of the second connecting rod, so that the second pressing block supports against the first damping swing arm, and the direction of the supporting force of the second pressing block on the first damping swing arm is the same as the direction of the supporting force of the first pressing block on the first damping swing arm.
In this embodiment, through setting up first briquetting and first connecting rod in the one end of first elastic component, the other end sets up second briquetting and second connecting rod for first elastic component can apply damping force to first damping swing arm respectively at its elastic recovery's relative both ends, thereby can increase the damping force that receives when first damping swing arm and first mount rotate, in order to promote user's damping feel.
In one possible implementation manner, the first elastic member is flat, and the thickness of the first elastic member is smaller than the width and the length of the first elastic member.
In this embodiment, the flat spring is used as the first elastic element, so that the size of the first damping structure in the thickness direction can be reduced, and the thickness of the rotating mechanism can be reduced, which is beneficial to realizing the thinning of the foldable electronic device.
In a possible embodiment, the first elastic member includes a deformed section, and the deformed section is annular. The deformation section comprises two first deformation walls and two second deformation walls, wherein the two first deformation walls are oppositely arranged along the elastic deformation direction of the first elastic piece, and the two second deformation walls are oppositely arranged and are both connected between the two first deformation walls.
When the first elastic piece is compressed along the opposite ends of the elastic compression direction of the first elastic piece, the deformation section is extruded to deform, the distance between the two first deformation walls is reduced, and elastic restoring force is generated. The elastic restoring force of the first elastic piece is opposite to the elastic compression direction. In this embodiment, by adjusting the thicknesses of the first deformation wall and the second deformation wall, the elastic coefficient of the first elastic element may be changed, so that the elastic restoring force of the first elastic element may be changed, and further the damping force provided by the first damping structure may be changed.
In a possible implementation manner, the first elastic piece further comprises at least two connecting sections, and at least one connecting section is connected between the first deformation walls of every two adjacent deformation sections. In this embodiment, by providing a plurality of deformation segments, the elastic force of the first elastic member may be increased.
In one possible implementation manner, the first elastic member includes at least two first deformation walls and at least one second deformation wall, at least two first deformation walls are oppositely arranged along the elastic deformation direction of the first elastic member, and one second deformation wall is connected between every two adjacent first deformation walls. That is, the first elastic member has a serpentine structure. The first elastic piece that this embodiment provided simple structure, easily processing plays the effect of saving the cost.
In one possible implementation manner, the first elastic member includes two connection sections and a plurality of deformation sections, the two connection sections are opposite to each other along the elastic deformation direction of the first elastic member and are arranged at intervals, and each deformation section is connected between two connection sections. When the first elastic piece is compressed along the two opposite ends of the first elastic piece, the two connecting sections move towards the directions close to each other, and the bending radian of the first deformation wall becomes large, so that elastic force is generated.
In a possible implementation manner, the first damping swing arm is provided with a first mounting groove, the first pressing block and the first elastic piece are both mounted in the first mounting groove, and the first pressing block can slide along the first mounting groove.
In this embodiment, through set up first mounting groove at first damping swing arm to install first briquetting and first elastic component in first mounting groove, play the effect in practicing thrift the space, thereby can further reduce rotary mechanism's thickness, be favorable to realizing collapsible electronic equipment's attenuate.
In a possible embodiment, the rotating mechanism further includes a second mount, a second damping swing arm, and a second damping structure. Along the width direction of base, the second mount with first mount sets up relatively, the second damping swing arm with first damping swing arm sets up relatively. One end of the second damping swing arm is rotationally connected with the base, and the other end of the second damping swing arm is in sliding connection with the second fixing frame. When the second fixing frame rotates relative to the base, the second damping swing arm rotates relative to the base and slides along the width direction of the second fixing frame relative to the second fixing frame.
The second damping structure comprises a second elastic piece, a third connecting rod and a third pressing block. The second elastic piece and the third pressing block are both arranged on the second damping swing arm, and the elastic deformation direction of the second elastic piece is consistent with the length direction of the base. Along the length direction of the base, the third pressing block is arranged on one side of the second elastic piece and is propped against the second elastic piece. One end of the third connecting rod is rotationally connected with the third pressing block, and the other end of the third connecting rod is rotationally connected with the second fixing frame.
When the rotating mechanism is in the unfolding state and the folding state, the length direction of the third connecting rod is intersected with the length direction of the base, the second elastic piece is elastically compressed and abuts against the third pressing block, the third pressing block abuts against the third connecting rod and receives the reaction force of the third connecting rod, so that the third pressing block abuts against the second damping swing arm, the second damping swing arm abuts against the second fixing frame, and the second fixing frame receives damping force.
In this embodiment, the second damping structure is disposed on the second damping swing arm to prevent the rotation of the second fixing frame, so that a damping force can be further provided for the rotation of the rotating mechanism, and the damping hand feeling of the user is further improved.
In a possible embodiment, the base is provided with a first rotation groove and a second rotation groove, and the projection of the first rotation groove along the length direction of the base is at least partially overlapped with the second rotation groove. The first damping swing arm is arranged in the first rotating groove and can rotate and slide along the first rotating groove; the second damping swing arm is installed in the second rotating groove and can rotate and slide along the second rotating groove.
In this embodiment, the projection of the first rotation groove along the length direction of the base is at least partially overlapped with the second rotation groove, so that the dimension of the base in the width direction can be reduced, and the dimension of the rotation mechanism in the width direction can be reduced, and the thickness of the foldable electronic device in the folded state can be reduced.
The application also provides foldable electronic equipment, which comprises a first shell, a second shell, a display screen and the rotating mechanism. The rotating mechanism is connected between the first shell and the second shell, the display screen is arranged on the first shell, the second shell and the rotating mechanism, and when the rotating mechanism rotates, the first shell and the second shell relatively rotate, so that the display screen is driven to bend or unfold.
To sum up, this application is through setting up first damping structure at first damping swing arm, can make the damping force that first mount received to can prevent the rotation of first mount, provide damping feel for the user, promote user's use experience. The application provides a slewing mechanism through the elastic deformation process first briquetting and first connecting rod with first elastic component effect to first damping swing arm, then effect to first mount to provide damping force. The first pressing block, the first connecting rod and the first elastic piece are small in abrasion in the moving process, and the damping force provided by the first damping mechanism is stable under the whole service life of the rotating mechanism, so that the using hand feeling of a user can be improved, and the service life of the rotating mechanism is prolonged. That is, the rotating mechanism provided by the application can avoid damping force attenuation caused by abrasion of the first damping structure, thereby influencing the opening and closing handfeel. Simultaneously, the rotating mechanism that this application provided is lower to the machining precision requirement of first damping structure, can simplify processing technology, plays the effect of saving the cost.
Drawings
In order to more clearly describe the technical solutions in the embodiments or the background of the present application, the following description will describe the drawings that are required to be used in the embodiments or the background of the present application.
Fig. 1 is a schematic structural diagram of a foldable electronic device provided in an embodiment of the present application in a first state;
fig. 2 is a schematic structural diagram of a foldable electronic device in a second state according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a foldable electronic device in a third state according to an embodiment of the present application;
FIG. 4 is a schematic diagram of an exploded structure of the foldable electronic device of FIG. 3;
FIG. 5 is a schematic view of a rotating mechanism in the foldable electronic device of FIG. 4;
FIG. 6 is an exploded view of the rotary mechanism of FIG. 5;
FIG. 7 is a partially exploded view of the base of the rotation mechanism of FIG. 6;
FIG. 8 is a partially exploded view of the rotation mechanism of FIG. 6;
FIG. 9 is a schematic view of a portion of the rotation mechanism shown in FIG. 5;
FIG. 10 is a partially exploded view of the rotation mechanism of FIG. 6;
FIG. 11 is an enlarged view of a portion of the mount of the rotary mechanism of FIG. 6;
FIG. 12 is a schematic view of a portion of the rotary mechanism of FIG. 9 in a folded state;
FIG. 13 is an exploded view of the damping assembly of the rotary mechanism of FIG. 6;
FIG. 14 is a schematic view of a portion of the rotary mechanism of FIG. 5;
FIG. 15a is an enlarged schematic view of the first resilient member of the damping assembly of FIG. 13;
FIG. 15b is a schematic view of the structure of the first resilient member of the damping assembly of FIG. 13 in a second embodiment;
FIG. 15c is a schematic view of the structure of the first resilient member in the damping assembly of FIG. 13 in a third embodiment;
FIG. 15d is a schematic view of a structure of a first resilient member in the damping assembly of FIG. 13 in a fourth embodiment;
FIG. 15e is a schematic view of the structure of the first resilient member in the damping assembly of FIG. 13 in a fifth embodiment;
FIG. 15f is a schematic view of a first spring member of the damping assembly of FIG. 13 in a sixth embodiment;
FIG. 15g is a schematic view of a structure of a first resilient member in the damping assembly of FIG. 13 in a seventh embodiment;
FIG. 15h is a schematic view of a first resilient member of the damping assembly of FIG. 13 in an eighth embodiment;
FIG. 15i is a schematic view of a structure of a first resilient member in the damping assembly of FIG. 13 in a ninth embodiment;
FIG. 15j is a schematic view of the structure of the first resilient member in the damping assembly of FIG. 13 in a tenth embodiment;
FIG. 16a is an enlarged schematic view of the first link in the damping assembly of FIG. 13;
FIG. 16b is a schematic view of the structure of the first link in the damping assembly of FIG. 13 in a second embodiment;
FIG. 16c is a schematic view of the structure of the first link in the damping assembly of FIG. 13 in a third embodiment;
FIG. 16d is a schematic view of the structure of the first connecting rod in the damping assembly of FIG. 13 in a fourth embodiment;
FIG. 16e is a schematic illustration of the structure of the first link in the damping assembly of FIG. 13 in a fourth embodiment;
FIG. 16f is a schematic illustration of the structure of the first link in the damping assembly of FIG. 13 in a fourth embodiment;
FIG. 17 is a schematic view of a portion of the rotary mechanism of FIG. 14 at another angle;
FIG. 18 is a partial force analysis model of the rotating mechanism of FIG. 17;
FIG. 19 is a schematic view of a portion of the rotary mechanism of FIG. 17 in a semi-extended state;
FIG. 20 is a graph showing the variation of damping force experienced by the rotary mechanism of FIG. 5 when switching from an extended state to a collapsed state;
FIG. 21 is a schematic view of a portion of the rotary mechanism of FIG. 17 in a folded state;
FIG. 22 is a partial force analysis model of the rotating mechanism of FIG. 21 in a folded state;
fig. 23 is a diagram showing a damping force change when the rotation mechanism is switched from the folded state to the unfolded state;
FIG. 24 is a schematic view of the rotary mechanism of FIG. 6 at an alternative angle;
FIG. 25 is a schematic view showing a part of the structure of the rotating mechanism shown in FIG. 24 in a folded state;
fig. 26 is a partial schematic structural view of a rotating mechanism provided in a second embodiment of the present application;
fig. 27 is a schematic view of a part of the structure of a rotating mechanism provided in a third embodiment of the present application;
fig. 28 is a partial schematic structural view of a rotating mechanism provided in a fourth embodiment of the present application;
fig. 29 is a partial schematic view of a rotating mechanism provided in a fifth embodiment of the present application;
fig. 30 is a schematic view of a part of the structure of a rotating mechanism provided in the sixth embodiment of the present application.
Detailed Description
Embodiments of the present application are described below with reference to the accompanying drawings in the embodiments of the present application.
Referring to fig. 1 to 3, fig. 1 is a schematic structural diagram of a foldable electronic device 1000 in a first state provided in an embodiment of the present application, fig. 2 is a schematic structural diagram of a foldable electronic device 1000 in a second state provided in an embodiment of the present application, and fig. 3 is a schematic structural diagram of a foldable electronic device 1000 in a third state provided in an embodiment of the present application.
The foldable electronic device 1000 includes, but is not limited to, a cell phone, a notebook (notebook computer), a tablet (tablet personal computer), a laptop (laptop computer), a personal digital assistant (personal digital assistant), a wearable device (wearable device), a vehicle-mounted device (mobile device), or the like. In the embodiment of the present application, the foldable electronic device 1000 is taken as an example of a mobile phone.
The foldable electronic device 1000 shown in fig. 1 is in a folded state, the foldable electronic device 1000 shown in fig. 2 is in a semi-unfolded state, and the foldable electronic device 1000 shown in fig. 3 is in an unfolded state. The unfolding angle α of the foldable electronic device 1000 shown in fig. 2 is 90 degrees, and the unfolding angle β of the foldable electronic device 1000 shown in fig. 3 is 180 degrees.
It should be noted that the angles illustrated in the embodiments of the present application allow for slight deviations. For example, the angle α of expansion of the foldable electronic device 1000 shown in fig. 2 is 90 degrees, which means that α may be 90 degrees, or may be about 90 degrees, such as 80 degrees, 85 degrees, 95 degrees, or 0 degrees. The angle β of the foldable electronic device 1000 shown in fig. 3 is 180 degrees, which means that β may be 180 degrees, or may be about 180 degrees, such as 170 degrees, 175 degrees, 185 degrees, 190 degrees, etc. The angles illustrated hereinafter are to be understood identically.
The foldable electronic device 1000 in the embodiment of the present application is an electronic device that can be folded once. In other embodiments, the foldable electronic device 1000 may also be an electronic device that can be folded multiple times (more than twice). At this time, the foldable electronic device 1000 may include a plurality of portions, and two adjacent portions may be relatively close to be folded to the foldable electronic device 1000 in a folded state, and two adjacent portions may be relatively far away from be unfolded to the foldable electronic device 1000 in an unfolded state.
For convenience of description, a width direction when the foldable electronic device 1000 is in an unfolded state is defined as an X direction, a length direction is defined as a Y direction, and a thickness direction is defined as a Z direction. The X direction, the Y direction and the Z direction are perpendicular to each other.
Referring to fig. 4, fig. 4 is an exploded view of the foldable electronic device 1000 shown in fig. 3.
The foldable electronic device 1000 includes a folding apparatus 200 and a display screen 300, and the display screen 300 is mounted to the folding apparatus 200. The display 300 includes a display surface 310 and a mounting surface 320, the display surface 310 and the mounting surface 320 being disposed opposite to each other. The display surface 310 is used for displaying text, images, videos, and the like. The display 300 includes a first portion 330, a second portion 340, and a foldable portion 350. The foldable portion 350 is located between the first portion 330 and the second portion 340, and the foldable portion 350 may be bent in a direction around an axis in which the Y direction is located. The first portion 330, the second portion 340, and the foldable portion 350 collectively comprise the display 300. In this embodiment, the display 300 is a flexible display, for example, an organic light-emitting diode (OLED) display, an active matrix organic light-emitting diode (OLED) display, or an active-matrix organic light-emitting diode (AMOLED) display.
The folding device 200 includes a first housing 210, a second housing 220, and a rotating mechanism 100. The rotation mechanism 100 is disposed between the first housing 210 and the second housing 220, and is fixedly connected to the first housing 210 and the second housing 220, so as to implement a rotation connection between the first housing 210 and the second housing 220. The display 300 is mounted on the folding device 200, and the mounting surface 320 is fixedly connected with the folding device 200. Specifically, the first housing 210 carries a first portion 330 of the display 300 and the second housing 220 carries a second portion 340. In other words, the first portion 330 is mounted to the first housing 210, and the second portion 340 is mounted to the second housing 220. Wherein the rotating mechanism 100 is disposed opposite the foldable portion 350. The first housing 210 and the second housing 220 are relatively rotatable by the rotation mechanism 100 such that the folding device 200 is switched between a folded state and an unfolded state.
Referring to fig. 1, the first housing 210 and the second housing 220 are relatively rotated by the rotating mechanism 100, and the display screen 300 is driven to be folded by relatively approaching the first housing 210 and the second housing 220, so that the foldable electronic device 1000 is folded. When the foldable electronic device 1000 is in the folded state, the foldable portion 350 of the display screen 300 is bent, and the first portion 330 and the second portion 340 are disposed opposite to each other. At this time, the display 300 is located at the outer side of the foldable electronic device 1000, and the foldable portion 350 has a large bending angle, so that the probability of occurrence of creases in the foldable portion of the display 300 can be greatly reduced. In other embodiments, the display 300 may be folded in by the rotating mechanism 100. When the display screen 300 is folded inwards and the foldable electronic device 1000 is in the folded state, the first portion 330 and the second portion 340 are disposed opposite to each other, and the display screen 300 is disposed between the first housing 210 and the second housing 220, so that the probability of damaging the display screen 300 can be greatly reduced, and effective protection of the display screen 300 can be realized.
Referring to fig. 2, the first housing 210 and the second housing 220 are relatively rotated by the rotating mechanism 100, and the display screen 300 is unfolded by relatively moving the first housing 210 and the second housing 220 away from each other, so that the foldable electronic device 1000 is unfolded to a half-unfolded state. When the foldable electronic device 1000 is in the semi-unfolded state, the first housing 210 and the second housing 220 are unfolded to have an included angle α, and the first portion 330 and the second portion 340 are relatively unfolded and drive the foldable portion 350 to be unfolded. At this time, the angle between the first portion 330 and the second portion 340 is α. In this embodiment, α is 90 degrees. In other embodiments, α may be about 90 degrees, 80 degrees, 85 degrees, 95 degrees, 0 degrees, or the like.
Referring to fig. 3, the first housing 210 and the second housing 220 are relatively rotated by the rotating mechanism 100, and the display screen 300 is further unfolded by relatively moving the first housing 210 and the second housing 220 away from each other until the foldable electronic device 1000 is flattened. When the folding device 200 is in the unfolded state, the angle between the first housing 210 and the second housing 220 is β. The foldable portion 350 is unfolded and the first portion 330 and the second portion 340 are relatively unfolded. At this time, the included angles between the first portion 330, the second portion 340 and the foldable portion 350 are β, and the display screen 300 has a large-area display area, so as to realize large-screen display of the foldable electronic device 1000, and improve the use experience of the user. In this embodiment, β is 180 degrees. In other embodiments, β may also be about 180 degrees, may be 170 degrees, 175 degrees, 185 degrees, 190 degrees, etc.
It should be noted that, the included angle α and the included angle β are included angles between the first housing 210 and the second housing 220, which are only used herein to distinguish the angle between the first housing 210 and the second housing 220 of the foldable electronic device 1000 in different states. The included angle α refers to an angle between the first housing 210 and the second housing 220 when the foldable electronic device 1000 is in the semi-unfolded state; the included angle β refers to an angle between the first housing 210 and the second housing 220 when the foldable electronic device 1000 is in the unfolded state.
Referring to fig. 5 and 6, fig. 5 is a schematic structural view of the rotating mechanism 100 in the foldable electronic device 1000 shown in fig. 4, and fig. 6 is an exploded schematic structural view of the rotating mechanism 100 shown in fig. 5.
The rotating mechanism 100 includes a base 10, a support plate 60, a fixing frame 20, a main swing arm 30, a damping assembly 50, and a synchronizing assembly 40. The main swing arm 30 is mounted to the base 10 and is slidable and rotatable with respect to the base 10. The fixing frame 20 is mounted at one end of the main swing arm 30 away from the base 10, and is fixedly connected with the base 10. The support plate 60 is disposed opposite to the base 10 and is connected to the main swing arm 30. When the fixing frame 20 rotates relative to the base 10, the main swing arm 30 rotates relative to the base 10, so as to drive the support plate 60 to rotate, so as to adapt to the bending of the display screen 300. The synchronizing assembly 40 is mounted on the base 10 and slidably coupled to the mount 20. The damping assembly 50 is mounted on the base 10, and is rotatably and slidably connected to the base 10 and slidably connected to the fixing frame 20. When the fixing frame 20 rotates relative to the base 10, the damping assembly 50 is driven to rotate, and a damping force is generated. Meanwhile, the fixing frame 20 drives the synchronous assembly 40 to rotate relative to the base 10, so as to realize the rotation of the rotating mechanism 100, and the rotating mechanism 100 is switched between the folded state and the unfolded state.
Referring to fig. 5 and 6, the main swing arm 30 includes a first main swing arm 31 and a second main swing arm 32. The main swing arm 30 is mounted on the base 10 and is slidable and rotatable with respect to the base 10. The first main swing arm 31 is located at one side of the base 10 in the negative X-axis direction, and is rotatably and slidably connected to the base 10. The second main swing arm 32 is located on the X positive direction side of the base 10, and is rotatably and slidably connected to the base 10.
The first main swing arm 31 may be one or a plurality of. The number of the first main swing arms 31 is plural. The plurality of first main swing arms 31 are sequentially arranged at intervals in the Y direction. Each two first swing arms 31 may be identical or similar, symmetrical or partially symmetrical in structure. The second main swing arm 32 may be one or more. When the second main swing arms 32 are multiple, the second main swing arms 32 are sequentially arranged at intervals along the Y direction. Each two first swing arms 31 may be identical or similar, symmetrical or partially symmetrical in structure. The plurality of second main swing arms 32 and the plurality of first main swing arms 31 are disposed in one-to-one correspondence along the X direction. In this embodiment, the first main swing arm 31 and the second main swing arm 32 are three. In other embodiments, the first and second main swing arms 31 and 32 may be two or more. The number of the first and second main swing arms 31 and 32 is not particularly limited herein.
The holder 20 includes a first holder 21 and a second holder 22. The first fixing frame 21 and the second fixing frame 22 are respectively positioned at two opposite sides of the base 10 in the X direction. The first fixing frame 21 is located in the negative X-axis direction of the base 10 and is fixedly connected to the first main swing arm 31. When the first fixing frame 21 rotates relative to the base 10, the first main swing arm 31 can be driven to rotate relative to the base 10. The second fixing frame 22 is located in the positive direction of the X axis of the base 10 and is fixedly connected with the second main swing arm 32. When the second fixing frame 22 rotates relative to the base 10, the second main swing arm 32 can be driven to rotate relative to the base 10.
As shown in fig. 5 and 6, the synchronizing assembly 40 includes a first synchronizing swing arm 41 and a second synchronizing swing arm 42. The first and second swing arms 41 and 42 are provided on opposite sides of the base 10 in the X direction, respectively, and are engaged with each other. The first synchronous swing arm 41 and the first main swing arm 31 are located at the same side and are spaced from the first main swing arm 31. The second synchronization swing arm 42 is located on the same side as the second main swing arm 32 and is spaced apart from the second main swing arm 32. The first synchronous swing arm 41 is slidably connected with the first fixing frame 21, and the second synchronous swing arm 42 is slidably connected with the second fixing frame 22. When the first fixing frame 21 rotates relative to the base 10, the first synchronous swing arm 41 is driven to rotate, so that the second synchronous swing arm 42 is driven to rotate, and synchronous rotation of the rotating mechanism 100 is realized.
The synchronization component 40 may be one or more. When the number of the synchronizing assemblies 40 is plural, the plural synchronizing assemblies 40 are sequentially arranged at intervals along the Y direction and are disposed at intervals with the first main swing arm 31. Each two synchronization assemblies 40 may be identical or similar, symmetrical or partially symmetrical in configuration. In this embodiment, the number of synchronization assemblies 40 is two. The two synchronizing assemblies 40 are of identical construction. In other embodiments, the synchronization component 40 may be three or more.
With continued reference to fig. 5 and 6, the damper assembly 50 includes a first damper 501 and a second damper 502. The first damping member 501 and the second damping member 502 are respectively disposed at two opposite sides of the base 10 in the X direction, and are rotatably and slidably connected to the base 10. The first damping member 501 is located on the same side as the first main swing arm 31 and the first synchronization swing arm 41, and is disposed at a distance from the first main swing arm 31 and the first synchronization swing arm 41. The first damping member 501 is slidably coupled to the first fixing frame 21. When the first fixing frame 21 rotates relative to the base 10, the first damping member 501 is driven to rotate relative to the base 10 and slide relative to the first fixing frame 21. The second damping member 502 is located on the same side as the second main swing arm 32 and the second synchronous swing arm 42, and is disposed at a distance from the second main swing arm 32 and the second synchronous swing arm 42. The second damping member 502 is slidably connected to the second fixing frame 22. When the second fixing frame 22 rotates relative to the base 10, the second damping member 502 is driven to rotate relative to the base 10 and slide relative to the second fixing frame 22.
The damping assembly 50 may be one or more. When the damping assemblies 50 are plural, the plural damping assemblies 50 are sequentially arranged at intervals along the Y direction and are spaced apart from the first main swing arm 31 and the synchronization assembly 40. Each two damping assemblies 50 may be identical or similar, symmetrical or partially symmetrical in configuration. In this embodiment, the number of damping members 50 is two. The two damping assemblies 50 are rotationally symmetrical with each other. In other embodiments, the damping assembly 50 may be three or more.
In other embodiments, the turning mechanism 100 may also include a secondary swing arm. The auxiliary swing arm is mounted on the base 10 and is connected with the fixing frame 20. When the fixing frame 20 rotates relative to the base 10, the auxiliary swing arm is driven to rotate relative to the base 10, so that stability of the rotating mechanism 100 during rotation is improved.
Referring to fig. 7, fig. 7 is a partially exploded view of the base 10 of the rotating mechanism 100 shown in fig. 6.
The base 10 includes a first center sill 11 and a second center sill 12. The first center sill 11 includes a top surface 111, a bottom surface 112, a first surface 113, and a second surface 114. The top surface 111 and the bottom surface 112 are disposed opposite to each other and are located on opposite sides in the Z direction. The first surface 113 and the second surface 114 are disposed opposite to each other, and are respectively located at two opposite sides in the X direction, and are connected between the top surface 111 and the bottom surface 112. The top surface 111 is provided with a first rotating groove 13 and a second rotating groove 14. The first rotating groove 13 and the second rotating groove 14 are provided on opposite sides of the base 10 in the X direction, respectively. The opening of the first rotation groove 13 in the X direction is located at the first face 113. That is, the first rotation groove 13 penetrates the first surface 113 in the X direction. The bottom surface 112 of the first rotation groove 13 is arc-shaped. The first rotation groove 13 is used for installing the first damping swing arm 51, and the first damping swing arm 51 can rotate and slide along the first rotation groove 13.
The opening of the second rotating groove 14 in the X direction is located on the second face 114. That is, the second rotating groove 14 penetrates the second face 114 in the X direction. The bottom surface 112 of the second rotating groove 14 is arc-shaped. The second rotating groove 14 is used for installing the second damping swing arm 52, and the second damping swing arm 52 can rotate and slide along the second rotating groove 14. The second rotating groove 14 is provided side by side with the first rotating groove 13 in the Y direction. That is, the orthographic projection of the second rotation groove 14 in the Y direction at least partially coincides with the first rotation groove 13. That is, the second rotating groove 14 and the first rotating groove 13 are offset in the X direction, and the orthographic projection of the second rotating groove 14 in the X direction is not overlapped with the first rotating groove 13 and is completely offset. This makes it possible to reduce the size of the first center sill 11 in the X direction, thereby reducing the size of the turning mechanism 100 in the X direction.
In this embodiment, the second rotating groove 14 includes two sub rotating grooves. The two sub-rotation grooves are a first sub-rotation groove 141 and a second sub-rotation groove 142, respectively. The first sub-rotating groove 141 and the second sub-rotating groove 142 are arc-shaped grooves, and are used for installing the second damping swing arm 52, so as to improve the stability of the rotation of the second damping swing arm 52. The first and second sub-rotation grooves 141 and 142 are spaced apart in the Y direction and disposed side by side. The first rotating groove 13 is located between the first and second sub rotating grooves 141 and 142 and is spaced apart from the first and second sub rotating grooves 141 and 142. The projected portion of the first sub-rotation groove 141 in the Y direction coincides with the second rotation groove 14, and the projected portion of the second sub-rotation groove 142 in the Y direction coincides with the second rotation groove 14.
The top surface 111 is also provided with a third rotation groove 15 and a fourth rotation groove 16. The third rotary groove 15 and the fourth rotary groove 16 are disposed opposite to each other in the X direction and communicate with each other. The opening of the third rotating groove 15 in the X direction is located on the first surface 113 and is spaced from the first rotating groove 13. The bottom surface 112 of the third rotating groove 15 is provided with an arc-shaped rotating surface for being matched with the first main swing arm 31 so that the first main swing arm 31 can rotate and slide in the third rotating groove 15. The fourth rotating groove 16 and the third rotating groove 15 are in a rotationally symmetrical structure. The opening of the fourth rotating groove 16 in the X direction is located on the second surface 114 and is spaced apart from the second rotating groove 14. The bottom surface 112 of the fourth rotating groove 16 is provided with an arc-shaped rotating surface for cooperating with the second main swing arm 32, so that the second main swing arm 32 can rotate and slide in the fourth rotating groove 16.
The base 10 is also provided with a first receiving groove 17 and a second receiving groove 18. The first accommodation groove 17 and the second accommodation groove 18 are arranged side by side in the X direction. The first accommodation groove 17 is provided at a distance from the first rotation groove 13 and the third rotation groove 15, and the second accommodation groove 18 is provided at a distance from the second rotation groove 14 and the fourth rotation groove 16. The first receiving groove 17 is used for mounting the first swing synchronization arm 41, and the first swing synchronization arm 41 can rotate within the first receiving groove 17. The second receiving groove 18 is used for mounting the second swing arm 42, and the second swing arm 42 can rotate in the second receiving groove 18.
The second center sill 12 is an elongated shell. The second center sill 12 includes an upper surface 121 and a lower surface 122. The upper surface 121 and the lower surface 122 are disposed opposite to each other and are located on opposite sides of the second center sill 12 in the thickness direction (Z direction), respectively. The second center sill 12 is fixedly secured to the first center sill 11 with the lower surface 122 facing the top surface 111 of the first center sill 11. In this embodiment, the second center sill 12 is fixedly connected to the first center sill 11 by bolts. In other embodiments, the second middle beam 12 and the first middle beam 11 may be fixedly connected by bonding, welding, or the like. When the rotating mechanism 100 is applied to the foldable electronic device 1000, the bottom surface 112 of the first middle beam 11 faces the display screen 300.
It should be noted that, fig. 7 only shows a part of the structure of the base 10 in the positive Y-axis direction, the structure of the base 10 in the negative Y-axis direction is the same as or similar to the structure of the positive Y-axis direction, and the structure of the base 10 in the negative Y-axis direction may be adaptively adjusted according to the number and the structure of the main swing arm 30, the damping swing arm, and the synchronization swing arm.
Referring to fig. 8, fig. 8 is a partially exploded view of the turning mechanism 100 shown in fig. 6.
The first main swing arm 31 includes a first fixed block 311 and a first rotating block 312. One end of the first fixing block 311 is fixedly connected with the first fixing frame 21. The other end of the first fixing block 311 is provided with a first guide chute 313. The first guide chute 313 is arc-shaped. The first guide chute 313 is configured to rotate and slidingly couple with the first rotating block 312. The first rotation block 312 includes a first rotation portion 314 and a first connection portion 315. The first rotating portion 314 is fixedly coupled to a side of the first connecting portion 315 and extends in an arc shape in a direction away from the first rotating portion 314. In this embodiment, the first rotating portion 314 is arc-shaped. The shape of the first rotating portion 314 matches the shape of the third rotating groove 15. The first rotating portion 314 is configured to be mounted in the third rotating groove 15, and is rotatable and slidable along the third rotating groove 15. An end of the first connection portion 315 facing away from the first rotation portion 314 extends toward the first fixing block 311. And, an end of the first connecting portion 315 facing away from the first rotating portion 314 is installed in the first guide chute 313, and is capable of sliding and rotating along the first guide chute 313.
The second main swing arm 32 and the first main swing arm 31 are in a rotationally symmetrical structure. The second main swing arm 32 includes a second fixed block 321 and a second rotating block 322. One end of the second fixing block 321 is fixedly connected with the second fixing frame 22. The other end of the second fixing block 321 is provided with a second guide chute (not shown). The second guide chute is arc-shaped. The second guiding chute is used for rotating and slidingly connecting with the second rotating block 322. The second rotating block 322 includes a second rotating portion 324 and a second connecting portion 325.
The second rotating portion 324 is fixedly coupled to a side of the second rotating portion 324 and extends in an arc shape toward a direction away from the second rotating portion 324. In this embodiment, the second rotating portion 324 is arc-shaped. The shape of the second rotating portion 324 matches the shape of the fourth rotating groove 16. The second rotating portion 324 is configured to be mounted in the fourth rotating groove 16, and is rotatable and slidable along the fourth rotating groove 16. An end of the second connection portion 325 facing away from the second rotation portion 324 extends toward the second fixing block 321. And, an end of the second connection portion 325 facing away from the second rotation portion 324 is installed in the second guide chute, and is capable of sliding and rotating along the second guide chute.
Referring to fig. 9, fig. 9 is a schematic diagram of a portion of the rotating mechanism 100 shown in fig. 5.
The first main swing arm 31 is located in the negative X-axis direction of the base 10, and the first main swing arm 31 is mounted in the third rotation groove 15. The first rotating portion 314 is installed in the third rotating groove 15. The back surface of the first rotating portion 314 faces the rotating surface provided in the third rotating groove 15. One end of the first connecting portion 315 facing away from the first rotating portion 314 is located in the first guiding chute 313 of the first fixing block 311 and can slide along the first guiding chute 313. When the first fixing block 311 rotates relative to the base 10, the first rotating block 312 is driven to rotate relative to the base 10, and the first connecting portion 315 slides along the first guiding chute 313 and rotates, and the first rotating portion 314 rotates along the third rotating chute 15 and slides.
The second main swing arm 32 is located in the positive X-axis direction of the base 10, and the second main swing arm 32 is mounted to the fourth rotation groove 16. The second rotating portion 324 is mounted in the fourth rotating groove 16. The back surface of the second rotating portion 324 faces the rotating surface provided in the fourth rotating groove 16. An end of the second connecting portion 325 facing away from the second rotating portion 324 is located in the second guiding chute of the second fixing block 321 and can slide along the second guiding chute. When the second fixing block 321 rotates relative to the base 10, the second rotating block 322 is driven to rotate relative to the base 10, and the second connecting portion 325 slides along the second guiding chute and rotates, and the second rotating portion 324 rotates along the fourth rotating chute 16 and slides.
Wherein the rotation direction of the first main swing arm 31 is opposite to the rotation direction of the second main swing arm 32. When the rotation mechanism 100 is switched from the unfolded state to the folded state, the first main swing arm 31 rotates in the first rotation direction W1, and the second main swing arm 32 rotates in the second rotation direction W2. When the rotation mechanism 100 is switched from the folded state to the unfolded state, the first main swing arm 31 rotates in the second rotation direction W2, and the second main swing arm 32 rotates in the first rotation direction W1. In the present embodiment, the first rotation direction W1 is a counterclockwise direction, and the second rotation direction W2 is a clockwise rotation direction.
Referring to fig. 10, fig. 10 is a partially exploded view of the turning mechanism 100 shown in fig. 6.
The first synchronization swing arm 41 includes a first slider 411, a first shaft 412, and a first gear 413. The first slider 411 has a plate-like structure. The first shaft 412 and the first gear 413 are fixed to opposite ends of the first slider 411 in the X direction, respectively, and an extending direction of the first shaft 412 and an extending direction of the first gear 413 are both parallel to the Y direction. The first gear 413 is for engagement with the second synchronization swing arm 42. The first shaft 412 is slidably connected to the first fixing frame 21.
The second synchronous swing arm 42 and the first synchronous swing arm 41 are in mirror symmetry. The second synchronization swing arm 42 includes a second slider 421, a second shaft 422, and a second gear 423. The second slider 421 has a plate-like structure. The second shaft body 422 and the second gear 423 are fixed to opposite ends of the second sliding body 421 in the X direction, respectively, and an extending direction of the second shaft body 422 and an extending direction of the second gear 423 are both parallel to the Y direction. The second gear 423 is for meshing with the first gear 413. The second shaft 422 is slidably connected to the second fixing frame 22.
Referring to fig. 9 and 10, the first swing synchronization arm 41 is located in the X-axis negative direction of the base 10 and is spaced apart from the first main swing arm 31 in the Y-direction. The first gear 413 of the first synchronization swing arm 41 is mounted in the first receiving groove 17 of the base 10 and is rotatably connected to the base 10. The second synchronization swing arm 42 is located in the positive X-axis direction of the base 10 and is spaced apart from the second main swing arm 32 in the Y-direction. The second gear 423 of the second synchronous swing arm 42 is installed in the second accommodating groove 18 of the base 10 and is rotatably connected with the base 10, and the second gear 423 is meshed with the first gear 413.
When the first synchronous swing arm 41 rotates relative to the base 10, the first gear 413 is driven to rotate, and the first gear 413 drives the second gear 423 to rotate, so that the second synchronous swing arm 42 is driven to rotate, so that the synchronous rotation of the first synchronous swing arm 41 and the second synchronous swing arm 42 is realized, and the synchronous rotation of the rotating mechanism 100 is further realized.
Wherein the rotation direction of the first synchronization swing arm 41 is opposite to the rotation direction of the second synchronization swing arm 42. When the rotation mechanism 100 is switched from the unfolded state to the folded state, the first swing synchronization arm 41 rotates in the first rotation direction W1, and the second swing synchronization arm 42 rotates in the second rotation direction W2. When the rotation mechanism 100 is switched from the folded state to the unfolded state, the first swing synchronization arm 41 rotates in the second rotation direction W2, and the second swing synchronization arm 42 rotates in the first rotation direction W1.
In this embodiment, through setting up the synchronization component 40 to when first synchronization swing arm 41 rotates, can drive second synchronization swing arm 42 and rotate, thereby can realize the synchronous rotation of first synchronization swing arm 41 and second synchronization swing arm 42, and then realize the synchronous rotation of slewing mechanism 100 and collapsible electronic equipment 1000, in order to make things convenient for user's use, promote user's use experience.
Referring to fig. 11, fig. 11 is a schematic view of a part of the fixing frame 20 of the rotating mechanism 100 shown in fig. 6 in an enlarged structure.
In this embodiment, the first fixing frame 21 is a strip-shaped plate structure. The first mount 21 includes a first surface 201, a second surface 202, a first side surface 203, and a second side surface 204. The first surface 201 and the second surface 202 are disposed opposite to each other and are located on opposite sides of the first fixing frame 21 in the thickness direction (Z direction), respectively. The first side surface 203 and the second side surface 204 are disposed opposite to each other, and are located at opposite sides of the X direction, respectively, and are connected between the first surface 201 and the second surface 202.
The first fixing frame 21 is provided with a first mounting groove 211, a first slide groove 212, a first synchronization slide groove 213, a first limit groove 214, and a second limit groove 215. The first mounting groove 211 is provided on the first surface 201 and penetrates the first side surface 203. The first mounting groove 211 is for fixedly mounting the first main swing arm 31.
The first sliding groove 212 is spaced apart from the first mounting groove 211 in the Y direction. The extending direction of the first chute 212 coincides with the width direction of the first fixing frame 21. The first chute 212 penetrates the first side surface 203 and the second side surface 204 at opposite ends in the extending direction thereof, respectively. In this embodiment, the first chute 212 further penetrates the first surface 201. The opposite side walls of the first chute 212 in the Y direction are respectively provided with a first guide groove 216. Both first guide grooves 216 communicate with the first slide groove 212. And, the extending directions of the two first guide grooves 216 are identical to the width direction of the first fixing frame 21. The first sliding groove 212 and the two first guide grooves 216 are used for installing the first damping swing arm 51, and the first damping swing arm 51 can slide along the first sliding groove 212 and the first guide grooves 216 so as to improve the sliding stability of the first damping swing arm 51.
The first limiting groove 214 is disposed on the first surface 201 and faces the first chute 212. The first limiting groove 214 is substantially rounded triangle in shape. First spacing groove 214 includes a first spacing wall 2141 and a second spacing wall 2142. The included angle between the first and second limiting walls 2141 and 2142 is greater than 0 and less than 180 degrees. The first and second stopper walls 2141 and 2142 extend in a direction away from each other. Wherein the first limiting wall 2141 extends toward the first side surface 203, and the second limiting wall 2142 extends toward the second side surface 204.
The second limiting groove 215 has substantially the same structure as the first limiting groove 214. The second limiting groove 215 and the first limiting groove 214 are disposed opposite to each other along the opposite sides of the first sliding groove 212 in the Y direction. That is, the first limiting groove 214 and the second limiting groove 215 are respectively disposed on two opposite sides of the first sliding groove 212 in the Y direction. The second limiting groove 215 includes a third limiting wall 2151 and a fourth limiting wall 2152. The third limiting wall 2151 extends toward the first side surface 203, and the fourth limiting wall 2152 extends toward the second side surface 204.
The first limiting groove 214 and the second limiting groove 215 are used for installing the first damping component 50, and the first damping component 50 can rotate in the first limiting groove 214 and the second limiting groove 215.
The first synchronization runner 213 is spaced apart from the first runner 212 in the Y direction from the first mounting groove 211. The extending direction of the first synchronization chute 213 coincides with the width direction of the first fixing frame 21. The first synchronization chute 213 penetrates the first side surface 203 and the second side surface 204 at opposite ends in the extending direction thereof, respectively. The first synchronization chute 213 is used to mount the first synchronization swing arm 41 such that the first synchronization swing arm 41 can slide along the first synchronization chute 213.
The second holder 22 has a structure similar to that of the first holder 21. The second mount 22 includes a third surface 205, a fourth surface 206, a third side surface 207, and a fourth side surface 208. The second fixing frame 22 is provided with a second mounting groove 221, a second sliding groove 222, a second synchronizing sliding groove 223, a third limiting groove 224, a fourth limiting groove 225, and a second guiding groove 226. The second mounting groove 221, the second sliding groove 222, and the second synchronizing sliding groove 223 are arranged at intervals in the Y direction. The second mounting groove 221 is used for fixedly mounting the second main swing arm 32.
The extending direction of the second sliding groove 222 is consistent with the width direction of the second fixing frame 22, and the second sliding groove 222 penetrates the third side surface 207 and the fourth side surface 208 at opposite ends of the extending direction thereof. The second guiding groove 226 is disposed on two opposite sidewalls of the second sliding groove 222 in the Y direction, and is in communication with the second sliding groove 222. The second sliding groove 222 and the second guide groove 226 are used for installing the second damping swing arm 52 so that the second damping swing arm 52 can slide along the second sliding groove 222. The third limiting groove 224 and the fourth limiting groove 225 are respectively located at two opposite sides of the second sliding groove 222 in the Y direction, and face the second sliding groove 222. The third limit groove 224 includes a fifth limit wall 2241 and a sixth limit wall 2242. The fourth spacing groove 225 includes a seventh spacing wall 2251 and an eighth spacing wall 2252. The fifth and seventh stop walls 2241 and 2251 extend toward the third side surface 207, and the sixth and eighth stop walls 2242 and 2252 extend toward the fourth side surface 208.
The extending direction of the second synchronizing runner 223 is consistent with the width direction of the second fixing frame 22, and the second synchronizing runner 223 penetrates the third side surface 207 and the fourth side surface 208 at opposite ends of the extending direction thereof, respectively. The second synchronization chute 223 is used to mount the second synchronization swing arm 42 such that the second synchronization swing arm 42 can slide along the second synchronization chute 223.
For convenience of description, in the present embodiment, a direction parallel to the width direction of the first fixing frame 21 and directed from the first side surface 203 toward the second side surface 204 is defined as a first direction A1, and a direction parallel to the width direction of the first fixing frame 21 and directed from the second side surface 204 toward the first side surface 203 is defined as a second direction A2. In the present embodiment, the direction parallel to the width direction of the second holder 22 and from the third side surface 207 toward the fourth side surface 208 is defined as a third direction B1, and the direction parallel to the width direction of the second holder 22 and from the fourth side surface 208 toward the third side surface 207 is defined as a fourth direction B2. The first direction A1 is parallel to the second direction A2 and is opposite in direction. The third direction B1 is parallel to the fourth direction B2 and is opposite in orientation.
When the rotation mechanism 100 is in the unfolded state, the first direction A1 and the fourth direction B2 are consistent with the positive direction of the X axis, and the second direction A2 and the third direction B1 are consistent with the negative direction of the X axis.
It should be noted that, fig. 8 only shows a part of the structure of the fixing frame 20 in the positive Y-axis direction, the structure of the fixing frame 20 in the negative Y-axis direction is the same as or similar to the structure of the positive Y-axis direction, and the structure of the fixing frame 20 in the negative Y-axis direction may be adaptively adjusted according to the number and the structure of the main swing arm 30, the damping assembly 50 and the synchronization assembly 40.
Referring to fig. 9, the first fixing frame 21 is located in the negative X-axis direction of the base 10. The first fixing frame 21 is fixedly connected with the first housing 210. The first fixing block 311 of the first main swing arm 31 is installed in the first installation groove 211 and fixedly connected with the first fixing frame 21. The first synchronization swing arm 41 is disposed at a distance from the first main swing arm 31. The first shaft 412 of the first swing arm 41 is mounted in the first swing chute 213, and is slidable along the first swing chute 213, and rotates in the first swing chute 213 about the axial direction of the first shaft 412.
The second fixing frame 22 is located in the positive X-axis direction of the base 10, and is disposed opposite to the first fixing frame 21 along the positive X-axis direction. The second fixing frame 22 is fixedly connected with the second housing 220. The second fixing block 321 of the second main swing arm 32 is installed in the second installation groove 221 and fixedly connected with the second fixing frame 22. The second synchronization swing arm 42 is spaced apart from the second main swing arm 32. The second shaft body 422 of the second synchronization swing arm 42 is mounted in the second synchronization chute 223, and can slide along the second synchronization chute 223, and rotate around the axial direction of the second shaft body 422 in the second synchronization chute 223.
When the first housing 210 rotates relative to the base 10, the first fixing frame 21 can be driven to rotate relative to the base 10, so as to drive the first fixing block 311 of the first main swing arm 31 to rotate relative to the base 10, and further drive the first rotating block 312 to rotate relative to the base 10, and enable the first rotating block 312 to slide and rotate relative to the first fixing block 311. When the first fixing frame 21 rotates relative to the base 10, the first synchronization swing arm 41 is driven to rotate relative to the base 10, the first shaft 412 slides along the first synchronization chute 213, and the first gear 413 rotates around the axis direction thereof.
When the second housing 220 rotates relative to the base 10, the second fixing frame 22 can be driven to rotate relative to the base 10, so as to drive the second fixing block 321 of the second main swing arm 32 to rotate relative to the base 10, and further drive the second rotating block 322 to rotate relative to the base 10, and enable the second rotating block 322 to slide and rotate relative to the second fixing block 321. When the second fixing frame 22 rotates relative to the base 10, the second synchronous swing arm 42 is driven to rotate relative to the base 10, and the second shaft 422 slides along the second synchronous chute 223, and the second gear 423 rotates around the axis direction thereof.
Referring to fig. 9 and 12, fig. 12 is a schematic view of a part of the rotating mechanism 100 shown in fig. 9 in a folded state.
As shown in fig. 9, when the rotating mechanism 100 is in the unfolded state, the first fixing frame 21 is unfolded relative to the second fixing frame 22, that is, the included angle between the first fixing frame 21 and the second fixing frame 22 is approximately 180 degrees.
When the rotation mechanism 100 is switched from the unfolded state to the folded state, the first fixing frame 21 rotates along the first rotation direction W1, and drives the first main swing arm 31 and the first synchronization swing arm 41 to rotate along the first rotation direction W1. When the first synchronization swing arm 41 rotates in the first rotation direction W1, the first gear 413 rotates in the first rotation direction W1 about the axis direction thereof. When the first gear 413 rotates, the second gear 423 is driven to rotate along the second rotation direction W2 around the axis direction thereof, so as to drive the second synchronous swing arm 42 to rotate along the second rotation direction W2, and further drive the second fixing frame 22 to rotate along the second rotation direction W2. When the second fixing frame 22 rotates along the second rotation direction W2 relative to the base 10, the second main swing arm 32 is driven to rotate along the second rotation direction W2, so that synchronous rotation of the first fixing frame 21 and the second fixing frame 22, synchronous rotation of the first synchronous swing arm 41 and the second synchronous swing arm 42, and synchronous rotation of the first main swing arm 31 and the second main swing arm 32 are realized, and synchronous rotation of the rotating mechanism 100 is further realized.
In this embodiment, by providing the first fixing frame 21 and the second fixing frame 22, and fixedly connecting the first fixing frame 21 with the first housing 210, and fixedly connecting the second fixing frame 22 with the second housing 220, the connection strength between the fixing frame 20 and the housing can be increased, and the rotational stability of the foldable electronic device 1000 can be improved.
Referring to fig. 13 and 14 together, fig. 13 is an exploded view of the damping assembly 50 in the rotating mechanism 100 shown in fig. 6, and fig. 14 is a partial view of the rotating mechanism 100 shown in fig. 5.
The first damping member 501 includes a first damping swing arm 51 and a first damping structure 53. The first damping structure 53 is mounted on the first damping swing arm 51 and is rotatably connected to the first fixing frame 21. The second damping member 502 includes a second damping swing arm 52 and a second damping structure 54. The second damping structure 54 is mounted on the second damping swing arm 52 and is rotatably connected to the second fixing frame 22.
The first damping swing arm 51 includes a first body 511, a first slider 512, and a first rotating body 513. In this embodiment, the first body 511 has a rectangular plate structure. The length direction of the first body 511 coincides with the Y direction. In other embodiments, the first body 511 may also be square or other shaped structures. The first body 511 includes a first upper surface 514, a first lower surface 515, a first side 516, and a second side 517. The first upper surface 514 and the first lower surface 515 are disposed opposite to each other and are located on opposite sides of the first body 511 in the thickness direction, respectively. The first side 516 and the second side 517 are disposed opposite to each other and are located on opposite sides of the first body 511 in the longitudinal direction. And, the first side 516 and the second side 517 are each connected between the first upper surface 514 and the first lower surface 515.
The first body 511 is provided with a first mounting groove 518. The opening of the first mounting groove 518 is located on the first upper surface 514 and penetrates the first side 516 and the second side 517. The first mounting groove 518 includes a first stop surface 5181 and a second stop surface 5182. The first stop surface 5181 and the second stop surface 5182 are disposed on a side wall of the first mounting groove 518 and are disposed opposite to each other. The plane of the first stop surface 5181 and the plane of the second stop surface 5182 both intersect the Y direction. In this embodiment, the plane of the first stop surface 5181 and the plane of the second stop surface 5182 are perpendicular to the Y direction.
The first rotating body 513 is located at one side of the first body 511 in the X direction and is fixedly connected to the first body 511. The first rotating body 513 is configured to be mounted in the first rotating groove 13, and the first rotating body 513 is rotatable and slidable along the first rotating groove 13. The first rotating body 513 is arc-shaped, and the curvature of the first rotating body 513 is substantially the same as that of the first rotating groove 13. In this embodiment, there are two first sliders 512. One of the first sliders 512 is fixed to a first side 516, and the other first slider 512 is fixed to a second side 517. The first slider 512 is configured to be mounted in the first guide groove 216 and can slide along the first guide groove 216.
The second damping swing arm 52 includes a second body 521, a second slider 522, and a second rotator 523. The second body 521 and the first body 511 are mirror-symmetrical to each other. The second body 521 includes a second upper surface 524, a second lower surface 525, a third side 526, and a fourth side 527. The second body 521 is provided with a second mounting groove 528. The opening of the second mounting groove 528 is located on the second upper surface 524 and extends through the third side 526 and the fourth side 527. The second mounting groove 528 includes a third stop surface 5281 and a fourth stop surface 5282. The third stop surface 5281 and the fourth stop surface 5282 are disposed on the side wall of the second mounting groove 528 and are disposed opposite to each other.
The second rotating body 523 is located at one side of the second body 521 in the X direction and is fixedly connected to the second body 521. In the present embodiment, there are two second rotating bodies 523. The two second rotating bodies 523 are a first sub rotating body 5231 and a second sub rotating body 5232, respectively. The first and second sub-rotors 5231 and 5232 are connected to one side of the second body 521 and are spaced apart in the Y direction. The first sub-rotor 5231 is mounted to the first sub-rotor 141, and the second sub-rotor 5232 is mounted to the second sub-rotor 142. The first and second sub-rotors 5231 and 5232 of the present embodiment have arcuate surfaces.
In this embodiment, there are two second sliders 522. One of the second sliders 522 is fixed to the third side 526, and the other second slider 522 is fixed to the fourth side 527. The second slider 522 is configured to be installed in the second guide groove 226, and is slidable along the second guide groove 226. The length direction of the second slider 522 is the sliding direction, and is also the width direction of the second body 521.
The first damping structure 53 includes a first elastic member 531, a first link 532, a second link 533, a first pressing block 534, and a second pressing block 535. Along the elastic compression direction of the first elastic member 531, the first pressing block 534 and the second pressing block 535 are respectively disposed at opposite ends of the first elastic member 531. The first pressing block 534 may be fixedly connected with the first elastic member 531, or may contact but not be connected. One end of the first link 532 is rotatably connected to the first pressing block 534, and the other end is rotatably connected to the first fixing frame 21. One end of the second link 533 is rotatably connected to the second pressing block 535, and the other end is rotatably connected to the second fixing frame 22.
Referring to fig. 15a together, fig. 15a is an enlarged schematic view of the first elastic member 531 of the damping device 50 shown in fig. 13.
In this embodiment, the first elastic member 531 is a flat spring. That is, the thickness of the first elastic member 531 is small. That is, the dimension of the first elastic member 531 in the Z direction is much smaller than the dimension of the first elastic member 531 in the X direction and the Y direction. By adopting the flat spring as the first elastic member 531, the size of the first damping structure 53 in the Z direction can be reduced, so that the size of the rotation mechanism 100 in the Z direction can be reduced, which is advantageous for achieving thinning of the foldable electronic device 1000. For example, the first elastic member 531 is a flat shaped spring. The "shaped spring" herein refers to a spring having a structure different from that of a general coil spring.
The first elastic member 531 includes a deformed section 5311 and a connecting section 5312. The deformation section 5311 is a rounded bar-shaped annular structure. Specifically, the deformation section 5311 includes two first deformation walls 5315 and two second deformation walls 5316. The two first deforming walls 5315 are disposed opposite in the Y direction (i.e., the elastic deformation direction of the first elastic member 531). The two second deformed walls 5316 are arc-shaped, and the two second deformed walls 5316 are disposed opposite to each other along the width direction (X direction) of the first elastic member 531 and are connected between the two first deformed walls 5315. The two first deformation walls 5315 and the two second deformation walls 5316 are connected in a staggered manner to form an annular structure, and the annular structure is enclosed to form a closed hollowed-out area 5317.
The deformation section 5311 and the connection section 5312 are plural. The deformation sections 5311 and the connection sections 5312 are staggered and fixedly connected. That is, each connecting section 5312 is connected between the first deformed walls 5315 of two adjacent deformed sections 5311. In this embodiment, the number of deformation sections 5311 is four, and the number of connection sections 5312 is three. The width direction of the deformed section 5311 is parallel to the Y direction. The four deformed segments 5311 are arranged side by side and spaced apart along the Y-direction. A connecting section 5312 is connected between every two adjacent deformed sections 5311.
When the first elastic members 531 are compressed at opposite ends in the elastic direction of the first elastic members 531, the deformation sections 5311 are compressed to deform, and the distance between the two first deformation walls 5315 is reduced, that is, the size of the hollowed-out area 5317 in the Y direction is reduced, that is, the size of the deformation sections 5311 in the width direction (Y direction) is reduced, and at the same time, the distance between the two adjacent deformation sections 5311 is reduced, so that the first elastic members 531 are compressed and generate elastic restoring force. The elastic restoring force of the first elastic member 531 has a direction opposite to the elastic compression direction.
In this embodiment, by adjusting the wall thickness of the deformation section 5311, that is, the thicknesses of the first deformation wall 5315 and the second deformation wall 5316, the elastic coefficient of the first elastic member 531 can be changed, so that the elastic restoring force of the first elastic member 531 can be changed, and further, the damping force provided by the first damping structure 53 can be changed. The larger the wall thickness of the deformed section 5311 is, the larger the elastic coefficient of the first elastic member 531 is. Under the same deformation amount, the larger the elastic force of the first elastic member 531 is, the larger the elastic restoring force is, and the larger the acting force of the first damping structure 53 on the first damping swing arm 51 is, the stronger the damping hand feeling provided by the rotating mechanism 100 is.
Referring to fig. 15b, fig. 15b is a schematic view of a second embodiment of a first elastic member of the damping assembly 50 shown in fig. 13.
In this embodiment, the first elastic member 531b is flat. The first elastic member 531b includes two first deformed walls 5315b and two second deformed walls 5316b. The two first deforming walls 5315b are disposed opposite in the Y direction (i.e., the elastic deformation direction of the first elastic member 531 b). The two second deformed walls 5316 are circular arc-shaped, and the two second deformed walls 5316b are disposed opposite to each other along the width direction (X direction) of the first elastic member 531b and are connected between the two first deformed walls 5315 b. In this embodiment, the second deformation wall 5316b is circular arc-shaped.
When the first elastic member 531b is pressed along the opposite ends of the width direction (Y direction) of the first elastic member 531b, that is, when the two first deforming walls 5315b are pressed along the opposite ends of the width direction of the first elastic member 531b, the distance between the two first deforming walls 5315 is reduced, that is, the size of the width direction of the first elastic member 531b is reduced, and an elastic force is generated. The elastic force direction coincides with the width direction of the first elastic member 531b, that is, the elastic force direction is parallel to the Y direction.
It is understood that the structure of the first elastic member 531b in the present embodiment is the same as the structure of one deformed section 5311 of the first elastic member 531 shown in fig. 15 a. The first elastic member 531b provided in this embodiment has a simple structure, which is beneficial to reducing the cost.
Referring to fig. 15c, fig. 15c is a schematic structural view of a first elastic member in the damping assembly 50 shown in fig. 13 in a third embodiment.
The first elastic member 531c in this embodiment is different from the elastic member shown in fig. 15a in that in this embodiment, the first elastic member 531c includes two deformed sections 5311c and one connecting section 5312c. The width direction of the deformed section 5311c is parallel to the Y direction. The two deformed segments 5311c are arranged side by side along the Y direction at intervals, and the connecting segment 5312c is fixedly connected between the two deformed segments 5311 c. When the first elastic member 531c is pressed along opposite ends of the first elastic member 531c in the Y direction, the first elastic member 531c is reduced in size in the width direction and generates elastic force. The direction of the elastic force is parallel to the Y direction.
Referring to fig. 15d, fig. 15d is a schematic structural diagram of a first elastic member 531 of the damping device 50 shown in fig. 13 in a fourth embodiment.
The first elastic member 531d in the present embodiment is different from the first elastic member 531 shown in fig. 15a in that two connecting sections 5312d are connected between every two adjacent deformed sections 5311d in the present embodiment. Two connection sections 5312d between adjacent deformation sections 5311d are arranged at a distance from each other. In this embodiment, by providing two connection sections 5312d between two adjacent deformation sections 5311d, the connection strength between two adjacent deformation sections 5311d can be increased, so as to improve the strength of the first elastic member 531 d.
Referring to fig. 15e, fig. 15e is a schematic structural diagram of a first elastic member 531 of the damping device 50 shown in fig. 13 in a fifth embodiment.
In this embodiment, the first elastic member 531e includes two first deformation walls 5315e and two second deformation walls 5316e. Both of the first deformed walls 5315e are wavy. The two first deformed walls 5315e are oppositely disposed in the Y direction. The two second deformed walls 5316e are arc-shaped, and the two second deformed walls 5316e are oppositely arranged along the X direction and are connected between the two first deformed walls 5315 e. The two first deformation walls 5315e and the two second deformation walls 5316e are connected in a staggered manner to form an annular structure.
The present embodiment makes the first elastic member 531e more easily deformed by providing the first deforming wall 5315e in a wavy shape.
Referring to fig. 15f, fig. 15f is a schematic structural diagram of a first elastic member 531 of the damping device 50 shown in fig. 13 in a sixth embodiment.
The first elastic member 531f in the present embodiment is different from the first elastic member 531c in fig. 15c in that, in the present embodiment, two opposite first deformation walls 5315f of each deformation section 5311f are wavy. The first elastic member 531f provided in the present embodiment is more easily deformed.
Referring to fig. 15g, fig. 15g is a schematic structural view of a first elastic member 531 of the damping assembly 50 shown in fig. 13 in a seventh embodiment.
In this embodiment, the first elastic member 531g is flat and has a serpentine structure. The first elastic member 531g includes a plurality of first deformation walls 5315g and a plurality of second deformation walls 5316g. The first deformed wall 5315g and the plurality of second deformed walls 5316g are each linear. The longitudinal direction of the first deformed wall 5315g is parallel to the X direction. The five first deforming walls 5315g are arranged side by side in the Y direction with an interval. A second deformed wall 5316g is connected between each two adjacent first deformed walls 5315g, and the second deformed walls 5316g are connected to the ends of the first deformed walls 5315 g. In this embodiment, there are five first deformed walls 5315g and four second deformed walls 5316g. The five first deformation walls 5315g are sequentially connected with the four second deformation walls 5316g in a staggered manner. When the first elastic member 531g is in a natural state, a gap is provided between two adjacent second deformation walls 5316g. When the first elastic member 531g is compressed along opposite ends of the first elastic member 531g in the Y direction, a gap between adjacent two of the second deformation walls 5316g is reduced, and the first elastic member 531g is compressed, thereby generating an elastic force.
The first elastic member 531g provided in this embodiment has a simple structure, is easy to process, and plays a role in saving cost.
Referring to fig. 15h, fig. 15h is a schematic structural diagram of a first elastic member 531 of the damping device 50 shown in fig. 13 in an eighth embodiment.
The first elastic member 531h in the present embodiment is different from the first elastic member 531g in fig. 15g in that the second deformation wall 5316h is circular arc shaped in the present embodiment. That is, smooth transition is realized between two adjacent first deformation walls 5315h through the arc-shaped second deformation walls 5316h, so that the stress of the first elastic piece 531h is uniform, and breakage of the first elastic piece 531h due to uneven stress is avoided.
Referring to fig. 15i, fig. 15i is a schematic structural view of a first elastic member 531 of the damping device 50 shown in fig. 13 in a ninth embodiment.
In this embodiment, the first elastic member 531i is flat. The first elastic member 531i includes a connection section 5312i and a deformation section 5311i. The number of the connection sections 5312i is two. The two connection sections 5312i are arranged side by side in the Y direction and spaced apart. The deformed segment 5311i includes a first deformed wall 5315i. The first deformed wall 5315i has a long arc structure. The first deformed wall 5315i is connected between two connection segments 5312 i. In this embodiment, the number of the first deformed walls 5315i is plural. Each first deformation wall 5315i is connected between two connection sections 5312i, and a plurality of first deformation walls 5315i are arranged at intervals along the X direction. In this embodiment, there are six first deformed walls 5315i. Three of the first deformed walls 5315i are curved toward the positive X-axis direction, and the other three first deformed walls 5315i are curved toward the negative X-axis direction.
When the first elastic member 531i is compressed along opposite ends of the first elastic member 531i in the Y direction, the two connection sections 5312i move toward each other, and the curvature of the first deforming wall 5315i becomes large, thereby generating an elastic force.
In this embodiment, by changing the wall thickness of the first deformation wall 5315i, the elastic coefficient of the first elastic member 531i can be changed, thereby changing the magnitude of the elastic force under the same deformation amount.
Referring to fig. 15j, fig. 15j is a schematic structural view of a first elastic member 531 of the damper assembly 50 shown in fig. 13 in a tenth embodiment.
In this embodiment, the first elastic member 531j has a flat shape and a serpentine structure. The first elastic member 531j includes two portions. The two portions are a first portion 5313j and a first portion 5314j, respectively. Each of which is similar in structure to the first elastic member 531g shown in fig. 15 g. The first portion 5313j faces the first portion 5314j at opposite ends in the extending direction thereof. The first portion 5314j is disposed in mirror symmetry with the first portion 5313j and is fixedly coupled thereto. The end of the first portion 5313j in the positive Y-axis direction is fixedly connected to the end of the first portion 5314j in the positive Y-axis direction, and the end of the first portion 5313j in the negative Y-axis direction is fixedly connected to the end of the first portion 5314j in the negative Y-axis direction.
When the first elastic member 531j is compressed along opposite ends of the first elastic member 531j in the Y direction, both the first portion 5313j and the first portion 5314j are pressed and deformed, thereby generating an elastic force. In this embodiment, by providing two portions of the first elastic member 531j that can be deformed, the first elastic member 531j has a larger elastic force under the condition of the same deformation amount, so that a larger damping force can be provided for the rotation of the rotation mechanism 100.
Referring to fig. 16a, fig. 16a is an enlarged schematic view of a first link 532 in the damping assembly 50 shown in fig. 13.
The first link 532 has a substantially rectangular plate-like structure, and the opposite ends of the first link 532 in the length direction thereof are arc-shaped. The first link 532 includes a first end 5321 and a second end 5322. The first end 5321 and the second end 5322 are located at opposite ends of the first link 532 in the length direction, respectively. The first link 532 is provided with a first shaft hole 1 and a first rotation hole 2. Wherein the first shaft hole 1 is located near the first end 5321, and the first rotation hole 2 is located near the second end 5322. Along the thickness direction of the first link 532, the first shaft hole 1 and the first rotation hole 2 each penetrate the first link 532. The first shaft hole 1 and the first rotation hole 2 are provided at intervals along the extending direction of the first link 532. The first shaft hole 1 is used for being rotatably connected with the first pressing block 534, and the first rotating hole 2 is used for being rotatably connected with the first fixing frame 21.
Referring to fig. 13 and 14, the first pressing block 534 is provided with the first rotation shaft 3. The axial direction of the first rotation shaft 3 is parallel to the Z direction. The first end 5321 of the first connecting rod 532 faces the first pressing block 534 and is sleeved on the periphery of the first rotating shaft 3, and the first rotating shaft 3 is located in the first shaft hole 1. The first link 532 is rotatable about the axial direction of the first rotation shaft 3. The first limiting groove 214 of the first fixing frame 21 is provided with a first shaft pin 4. The second end 5322 of the first link 532 faces the first fixing frame 21, and the first shaft pin 4 is mounted in the first rotation hole 2. The first link 532 is rotatable about the first shaft pin 4.
Referring to fig. 16b, fig. 16b is a schematic view of a second embodiment of a first link 532 of the damper assembly 50 shown in fig. 13.
The first link 532b of the present embodiment is different from the first link 532 shown in fig. 16a in that the first link 532b is provided with a first shaft hole 1b and a first shaft pin 4b in the present embodiment. The axial direction of the first shaft pin 4b coincides with the thickness direction of the first link 532b. The first shaft hole 1b penetrates the first link 532b in the thickness direction of the first link 532b. The first shaft hole 1b and the first shaft pin 4b are provided at intervals along the longitudinal direction of the first link 532b.
At this time, the first pressing block 534 is provided with a first rotation shaft (not shown). The first shaft hole penetrates the first pressing block 534 in a thickness direction of the first pressing block 534. The first shaft hole is used for installing a first rotating shaft, and the first rotating shaft can rotate around the first rotating shaft in the first shaft hole. At this time, a first rotation hole is provided in the first limiting groove of the first fixing frame 21. The first shaft pin 4b is mounted in the first rotation hole. The first link 532b is rotatable about the first shaft pin 4b.
Referring to fig. 16c, fig. 16c is a schematic view of a third embodiment of a first link 532 of the damper assembly 50 shown in fig. 13.
The first link 532c of the present embodiment is different from the first link 532 shown in fig. 16a in that the first link 532c is provided with a first rotation shaft 3c and a first shaft pin 4c in the present embodiment. The axial direction of the first shaft pin 3c and the axial direction of the first shaft pin 4c are both coincident with the thickness direction of the first link 532 c. The first shaft pin 3c and the first shaft pin 4c are provided at intervals along the longitudinal direction of the first link 532 c. The first pressing block 534 is provided with a first shaft hole. The first rotation shaft 3c of the first link 532c is located in the first shaft hole. The first link 532c is rotatable about the axial direction of the first rotation shaft 3 c.
At this time, a first rotation hole is provided in the first limiting groove of the first fixing frame 21. The first shaft pin 4c is mounted in the first rotation hole. The first link 532c is rotatable about the first shaft pin 4c.
Referring to fig. 16d, fig. 16d is a schematic view of a structure of a first link 532 of the damper assembly 50 shown in fig. 13 in a fourth embodiment.
The first link 532d in this embodiment is different from the first link 532 shown in fig. 16a in that the first link 532d has a substantially diamond-shaped structure in this embodiment. The width of the first link 532d gradually increases toward the middle direction along opposite ends of the length direction of the first link 532 d. That is, the first link 532d of the present embodiment has a larger width, and strength and resistance properties of the first link 532d can be improved.
Referring to fig. 16e, fig. 16e is a schematic view of a structure of a first link 532 in the damping assembly 50 shown in fig. 13 in a fourth embodiment.
The first link 532e in this embodiment is different from the first link 532d shown in fig. 16d in that the first link 532e has a substantially elliptical structure in this embodiment. The two long sides of the first link 532e are arc-shaped, so that the break caused by uneven stress at the folded angle is avoided, and the structural strength of the first link 532e can be improved.
Referring to fig. 16f, fig. 16f is a schematic view of a fourth embodiment of a first link 532 of the damper assembly 50 shown in fig. 13.
The first link 532f in this embodiment is different from the first link 532 shown in fig. 16a in that in this embodiment, a gap is provided in a middle region of the first link 532f in the length direction, which can play a role in reducing weight.
Referring to fig. 13 and 14, in the present embodiment, the structure of the second link 533 is the same as that of the first link 532, and the structure of the second pressing block 535 is the same as that of the first pressing block 534. The second link 533 is provided with a second shaft hole 5331 and a second rotation hole 5332. The second pressing block 535 is provided with a second rotation shaft 5351. The second link 533 is sleeved on the outer periphery of the second rotating shaft 5351, and the second rotating shaft 5351 is located in the second shaft hole 5331. The second link 533 is rotatable about the axial direction of the second rotation shaft 5351. A second shaft pin 217 is disposed in the second limiting groove 215 of the first fixing frame 21. The second shaft pin 217 is mounted in the second rotation hole 5332. The second link 533 is rotatable about the second pin 217.
In other embodiments, the structure of the second link 533 may also be different from the structure of the first link 532. The structure of the second link 533 may be the same as or similar to any of the first links shown in fig. 16b to 16 f. The structures of the second pressing block 535 and the first fixing frame 21 may be adaptively changed according to the structure of the second link 533.
The structure of the second damping structure 54 is the same as or similar to the structure of the first damping structure 53. In this embodiment, the second damping structure 54 and the first damping structure 53 are mirror-symmetrical structures. The second damping structure 54 includes a second elastic member 541, a third link 542, a fourth link 543, a third presser 544, and a fourth presser 545. The third pressing block 544 and the fourth pressing block 545 are respectively disposed at opposite ends of the second elastic member 541 along the elastic compression direction of the second elastic member 541. The third pressing block 544 may be fixedly connected to the second elastic member 541, or may contact but not be connected.
The third link 542 is provided with a third shaft hole 5421 and a third rotation hole 5422. The third pressing block 544 is provided with a third rotation shaft 5441. The third connecting rod 542 is sleeved on the outer periphery of the third rotating shaft 5441, and the third rotating shaft 5441 is located in the third shaft hole 5421. The third link 542 is rotatable about the axial direction of the third rotation shaft 5441. The third rotation hole 5422 is for rotation connection with the second fixing frame 22. At this time, the second limiting groove 215 of the second fixing frame 22 is provided with a third shaft pin 227. The third shaft pin 227 is installed in the third rotation hole 5422, and the third link 542 is rotatable about the third shaft pin 227.
The fourth link 543 is provided with a fourth shaft hole 5431 and a fourth rotation hole 5432. The fourth pressing block 545 is provided with a fourth rotation shaft 5451. The fourth connecting rod 543 is sleeved on the outer periphery of the fourth rotating shaft 5451, and the fourth rotating shaft 5451 is located in the fourth shaft hole 5431. The fourth link 543 is rotatable around the axial direction of the fourth rotation shaft 5451. The fourth rotation hole 5432 is for rotation connection with the second fixing frame 22. At this time, a fourth shaft pin 228 is disposed in the fourth limiting groove 225 of the second fixing frame 22. The fourth shaft pin 228 is installed in the fourth rotation hole 5432, and the fourth link 543 is rotatable around the fourth shaft pin 228.
In other embodiments, the structure of the second damping structure 54 may also be different from the structure of the second damping structure 54. The structure of the second elastic member 541 may be the same as or similar to the structure of any one of the first elastic members 531 shown in fig. 15b to 15 j. The structures of the third link 542 and the fourth link 543 may be the same as or similar to any one of the first links shown in fig. 16b to 16 f.
Referring to fig. 13 and 14, the first damping swing arm 51 is located on the side of the base 10 in the positive X-axis direction, and is arranged side by side and spaced apart from the first main swing arm 31 and the first synchronization swing arm 41 in the Y-axis direction. The first rotating body 513 is installed in the first rotating groove 13, and can rotate and slide along the first rotating groove 13. The first body 511 is mounted in the first chute 212 and can slide along the first chute 212. The first slider 512 is mounted in the first guide groove 216 and can slide along the first guide groove 216.
The first damping structure 53 is mounted on the first damping swing arm 51 and is rotatably connected to the first fixing frame 21. The first elastic member 531, the first pressing block 534 and the second pressing block 535 are all located in the first installation groove 518. The first pressing block 534 and the second pressing block 535 are respectively located at opposite sides of the first elastic member 531 in the Y direction, and the first pressing block 534 is located at a side close to the first stopping surface 5181, and the second pressing block 535 is located at a side close to the second stopping surface 5182. One end of the first link 532 is rotatably connected to the first pressing block 534, and the first rotating shaft 3 is located in the first shaft hole 1. The other end of the first connecting rod 532 extends into the first limiting groove 214 of the first fixing frame 21 through the first side surface 516, and is rotationally connected with the first fixing frame 21. The first shaft pin 4 is located in the first rotation hole 2. One end of the second link 533 is rotatably connected to the second pressing block 535, and the second rotation shaft 5351 is located in the second shaft hole 5331. The other end of the second link 533 extends into the second limiting groove 215 of the first fixing frame 21 through the second side 517, and is rotatably connected with the first fixing frame 21. The second shaft pin 217 is located in the second rotation hole 5332.
The second damping swing arm 52 is located at one side of the base 10 in the X-axis negative direction, is disposed opposite to the first damping swing arm 51, and is disposed side by side and spaced apart from the second main swing arm 32 and the second synchronizing swing arm 42 in the Y-axis direction. The second rotating body 523 is installed in the second rotating groove 14, and can rotate and slide along the second rotating groove 14. The first sub-rotor 5231 is located in the first sub-rotor groove 141 and the second sub-rotor 5232 is located in the second sub-rotor groove 142. The second body 521 is mounted in the second chute 222 and can slide along the second chute 222. The second slider 522 is mounted in the second guide slot 226 and can slide along the second guide slot 226.
The second damping structure 54 is mounted on the second damping swing arm 52 and is rotatably connected to the second fixing frame 22. The second resilient member 541, the third presser 544, and the fourth presser 545 are all located within the second mounting groove 528. The third pressing block 544 and the fourth pressing block 545 are respectively located at opposite sides of the second elastic member 541 in the Y direction, and the third pressing block 544 is located at a side close to the third stop surface 5281, and the fourth pressing block 545 is located at a side close to the fourth stop surface 5282. One end of the third link 542 is rotatably coupled to the third pressing block 544, and the third rotating shaft 5441 is positioned in the third shaft hole 5421. The other end of the third connecting rod 542 extends into the third limiting groove 224 of the second fixing frame 22 through the third side 526, and is rotatably connected with the second fixing frame 22. Third shaft pin 227 is located within third rotational aperture 5422. One end of the fourth link 543 is rotatably connected to the fourth pressing block 545, and the fourth rotation shaft 5451 is positioned in the fourth shaft hole 5431. The other end of the fourth connecting rod 543 extends into the fourth limiting groove 225 of the second fixing frame 22 through the fourth side face 527, and is rotationally connected with the second fixing frame 22. Fourth pivot pin 228 is located within fourth pivot aperture 5432.
When the first fixing frame 21 rotates relative to the base 10, the first damping swing arm 51 is driven to rotate relative to the base 10. The first rotating body 513 rotates and slides in the first rotating groove 13, the first body 511 slides along the first sliding groove 212, and the first slider 512 slides along the first guiding groove 216. The first and second pressing blocks 534 and 535 slide in the Y direction within the first mounting groove 518 to press or release the first elastic member 531. The first link 532 rotates about the first rotation shaft 3 and the first shaft pin 4, and the second link 533 rotates about the second rotation shaft 5351 and the second shaft pin 217.
When the second fixing frame 22 rotates relative to the base 10, the second damping swing arm 52 is driven to rotate relative to the base 10. The first sub-rotor 5231 rotates and slides in the first sub-rotation groove 141, and the second sub-rotor 5232 rotates and slides in the second sub-rotation groove 142. The second body 521 slides along the second chute 222, and the second slider 522 slides along the second guide slot 226. The third and fourth pressing pieces 544 and 545 slide in the Y direction within the second mounting groove 528 to press or release the second elastic member 541. The third link 542 rotates about the third rotation axis 5441 and the third shaft pin 227, and the fourth link 543 rotates about the fourth rotation axis 5451 and the fourth shaft pin 228.
Wherein the rotation directions of the first damping swing arm 51 and the second damping swing arm 52 are opposite.
Referring to fig. 17, fig. 17 is a schematic view of a portion of the rotating mechanism 100 shown in fig. 14 at another angle.
When the rotating mechanism 100 is in the unfolded state, the first fixing frame 21 and the second fixing frame 22 are unfolded relatively, and the first damping swing arm 51 and the second damping swing arm 52 are unfolded relatively. The angle between the first damping swing arm 51 and the second damping swing arm 52 is substantially 180 °. The first elastic member 531 is in a pre-compressed state, the first pressing block 534 abuts against the first stop surface 5181, and the second pressing block 535 abuts against the second stop surface 5182. The angle between the extending direction of the first link 532 and the Y direction is greater than 0. Along the direction from the first end 5321 to the second end 5322 of the first link 532, the first link 532 is inclined toward the first side surface 203. That is, the first link 532 is located at a side near the first stopper wall 2141. The first link 532 may abut against the first limiting wall 2141, may contact the first limiting wall 2141, or may have a small gap with the first limiting wall 2141. When the first link 532 abuts against the first limiting wall 2141, the first limiting wall 2141 can prevent the first link 532 from rotating toward the first limiting wall 2141, so as to prevent the first damping swing arm 51 and the first fixing frame 21 from rotating along the second rotation direction W2, and further avoid the excessive unfolding of the rotation mechanism 100.
When the rotation mechanism 100 is in the unfolded state, the second link 533 is located near the third limiting wall 2151. The second link 533 may abut against the third limiting wall 2151, may contact the third limiting wall 2151, or may have a small gap with the third limiting wall 2151. The "pre-compressed state" herein refers to the first elastic member 531 having a compression amount and an elastic force.
Referring to fig. 18, fig. 18 is a partial force analysis model diagram of the rotating mechanism 100 shown in fig. 17.
The first elastic member 531 is compressed and generates an elastic restoring force that acts on the first and second pressing blocks 534 and 535. The first pressing block 534 receives a first force F1. The first force F1 is directed in the positive Y-axis direction. The first force F1 acts on the first link 532, and causes the first link 532 to receive a component force in accordance with the extending direction of the first link 532, and the component force acts on the first pressing block 534 in turn, causing the first pressing block 534 to receive the second force F2. The second force F2 has a first component Fa and a second component Fb. The direction of the first component Fa coincides with the second direction A2. The direction of the second force Fb coincides with the negative Y-axis direction. The second force Fb acts on the first damping swing arm 51, and the first damping swing arm 51 receives the first holding force F3. The direction of the first holding force F3 coincides with the second direction A2. The first abutment force F3 can prevent or promote the first damping swing arm 51 from sliding relative to the first mount 21, thereby providing a first damping force for the rotation of the first mount 21.
The elastic restoring force generated by the compression of the first elastic member 531 also acts on the second pressing block 535, so that the second pressing block 535 applies a force to the second connecting rod 533, the second connecting rod 533 in turn acts on the second pressing block 535, and the second pressing block 535 applies a force to the first damping swing arm 51 again, so that the first damping swing arm 51 receives a second supporting force F4. The direction of the second pressing force F4 coincides with the second direction A2. The second abutment force F4 can prevent or promote the sliding of the first damping swing arm 51 relative to the first mount 21, thereby providing a second damping force for the rotation of the first mount 21.
It can be understood that, when the rotating mechanism 100 is in the unfolded state and the forces are balanced, the first acting force F1 applied to the first pressing block 534 is the elastic acting force of the first elastic member 531 on the first pressing block 534. The force applied to the second pressing block 535 along the Y direction is the elastic force of the first elastic member 531 to the second pressing block 535.
It should be noted that, the first supporting force F3 and the second supporting force F4 may be converted into a moment of rotation of the first damping swing arm 51, so as to prevent or promote the rotation of the first damping swing arm 51. When the directions of the first abutting force F3 and the second abutting force F4 are opposite to the moving direction of the first damping swing arm 51 relative to the first fixing frame 21, the first abutting force F3 and the second abutting force F4 can prevent the first damping swing arm 51 from rotating, so that the first fixing frame 21 is prevented from rotating. At this time, the first damping force and the second damping force are forces that prevent the first holder 21 from rotating. When the directions of the first abutting force F3 and the second abutting force F4 are the same as the moving direction of the first damping swing arm 51 relative to the first fixing frame 21, the first abutting force F3 and the second abutting force F4 can promote the rotation of the first damping swing arm 51, thereby promoting the rotation of the first fixing frame 21. At this time, the first damping force and the second damping force are forces pushing the first holder 21 to rotate.
Referring to fig. 18, when the rotation mechanism 100 is in the unfolded state, the second elastic member 541 is in the pre-compressed state, the third pressing block 544 abuts against the third stop surface 5281, and the fourth pressing block 545 abuts against the fourth stop surface 5282. The third link 542 is located on a side close to the fifth limiting wall 2241. The fourth link 543 is located on a side close to the seventh stopper wall 2251.
The elastic restoring force generated by the compression of the second elastic member 541 acts on the third pressing piece 544 and the fourth pressing piece 545. When the third pressing block 544 receives the force of the second elastic member 541, the force is applied to the third link 542, and the third link 542 in turn acts on the third pressing block 544, and the third pressing block 544 in turn applies the force to the second damping swing arm 52, so that the second damping swing arm 52 receives the third holding force F5. The direction of the third pressing force F5 coincides with the fourth direction B2. The third abutment force F5 can prevent or promote sliding of the second damping swing arm 52 relative to the second mount 22, thereby providing a third damping force for rotation of the second mount 22.
When the fourth pressing block 545 receives the force of the second elastic member 541, the fourth link 543 applies a force, and the fourth link 543 in turn acts on the fourth pressing block 545, so that the second damping swing arm 52 receives the fourth holding force F6. The direction of the fourth pressing force F6 coincides with the fourth direction B2. The fourth abutment force F6 can prevent or facilitate sliding of the second damping swing arm 52 relative to the second mount 22, thereby providing a fourth damping force for rotation of the second mount 22.
It should be noted that, the third holding force F5 and the fourth holding force F6 may be converted into a moment of rotation of the second damping swing arm 52, so as to prevent or promote the rotation of the second damping swing arm 52. When the directions of the third supporting force F5 and the fourth supporting force F6 are opposite to the moving direction of the second damping swing arm 52 relative to the second fixing frame 22, the third supporting force F5 and the fourth supporting force F6 can prevent the second damping swing arm 52 from rotating, so as to prevent the second fixing frame 22 from rotating. At this time, the third damping force and the fourth damping force are forces that prevent the second holder 22 from rotating. When the directions of the third supporting force F5 and the fourth supporting force F6 are the same as the moving direction of the second damping swing arm 52 relative to the second fixing frame 22, the third supporting force F5 and the fourth supporting force F6 can promote the rotation of the second damping swing arm 52, so as to promote the rotation of the second fixing frame 22. At this time, the third damping force and the fourth damping force are forces pushing the second holder 22 to rotate.
Referring to fig. 19 together, fig. 19 is a schematic view of a part of the turning mechanism 100 shown in fig. 17 in a half-unfolded state.
When the rotation mechanism 100 is switched from the unfolded state to the half-unfolded state, the first fixing frame 21 and the second fixing frame 22 rotate in directions approaching each other, the first fixing frame 21 rotates in the first rotation direction W1, and the second fixing frame 22 rotates in the second rotation direction W2.
When the first fixing frame 21 rotates along the first rotation direction W1, the first damping swing arm 51 is driven to rotate along the first rotation direction W1, the first body 511 slides along the first chute 212 towards the second side surface 204, and the first slider 512 slides along the first guide slot 216 towards the second side surface 204. That is, the first damping swing arm 51 slides toward the first direction A1 with respect to the first fixing frame 21.
At this time, the direction of the first supporting force F3 and the direction of the second supporting force F4 received by the first damping swing arm 51 are opposite to the moving direction of the first damping swing arm 51 relative to the first fixing frame 21, and the first supporting force F3 and the second supporting force F4 can prevent the rotation of the first damping swing arm 51, so as to prevent the rotation of the first fixing frame 21, provide damping force for the rotation of the first fixing frame 21, and further provide damping feel for the user. That is, the first damping force and the second damping force are forces that prevent the first holder 21 from rotating.
The rotation mechanism 100 provided in the present embodiment provides a damping force by applying elastic deformation of the first elastic member 531 to the first damping swing arm 51 through the first pressing block 534 and the first link 532 and then to the first fixing frame 21. The first pressing block 534, the first connecting rod 532 and the first elastic member 531 are less in abrasion during the movement, and the damping force provided by the first damping structure 53 is stable under the whole life of the rotating mechanism 100, so that the use feeling of a user can be improved, and the service life of the rotating mechanism 100 can be prolonged. That is, the present embodiment provides the rotating mechanism 100 in which the damping force can be prevented from being reduced because the first damping structure 53 is worn. Meanwhile, the rotating mechanism 100 provided in the embodiment has a low requirement on the machining precision of the first damping structure 53, and can simplify the machining process and save the cost.
In addition, in the present embodiment, the first damping structure 53 is disposed on the first damping swing arm 51 and the first fixing frame 21, and the first elastic member 531 and the first pressing block 534 are mounted in the first mounting groove 518 of the first damping swing arm 51, so that the thickness of the rotating mechanism 100 can be reduced, which is beneficial to the thinning of the foldable electronic device 1000.
In this embodiment, by disposing the first pressing block 534 and the first connecting rod 532 at one end of the first elastic member 531, and disposing the second pressing block 535 and the second connecting rod 533 at the other end, the first elastic member 531 may apply damping force to the first damping swing arm 51 at opposite ends of elastic restoring thereof, respectively, so that the damping force received when the first damping swing arm 51 and the first fixing frame 21 rotate may be increased, so as to improve the damping feel of the user.
Referring to fig. 17 and 19, when the second fixing frame 22 rotates along the second rotation direction W2, the second damping swing arm 52 is driven to rotate along the second rotation direction W2, the second body 521 slides along the second sliding chute 222 toward the fourth side surface 208, and the second slider 522 slides along the second guiding slot 226 toward the fourth side surface 208. That is, the second damping swing arm 52 slides toward the third direction B1 relative to the second fixing frame 22.
The direction of the third supporting force F5 and the direction of the fourth supporting force F6 received by the second damping swing arm 52 are opposite to the moving direction of the second damping swing arm relative to the second fixing frame 22. The third supporting force F5 and the fourth supporting force F6 can prevent the second damping swing arm 52 from rotating, so that the second fixing frame 22 can be prevented from rotating, damping force is provided for the rotation of the second fixing frame 22, and further damping handfeel is provided for a user. That is, the third damping force and the fourth damping force are forces that prevent the first holder 21 from rotating.
In this embodiment, the second damping structure 54 is disposed on the second damping swing arm 52 to prevent the rotation of the second fixing frame 22, so as to further provide a damping force for the rotation of the rotation mechanism 100, and further improve the damping feel of the user.
Referring to fig. 20 together, fig. 20 is a diagram showing a variation of damping force applied when the rotation mechanism 100 shown in fig. 5 is switched from the unfolded state to the folded state.
In the process that the rotating mechanism 100 is switched from the unfolding state to the semi-unfolding state, when the rotating mechanism 100 is in the unfolding state, the damping force borne by the rotating mechanism 100 is maximum, and the damping force can prevent the rotating mechanism 100 from rotating, so that the rotating mechanism 100 can be kept in the unfolding state and kept balanced in the unfolding state, and normal use of the foldable electronic device 1000 in the unfolding state is realized.
When the rotation mechanism 100 is further rotated from the unfolded state to the half unfolded state, the first fixing frame 21 drives the first link 532 and the second link 533 to rotate. The first link 532 rotates around the first rotation shaft 3 and the first shaft pin 4, and rotates along the first limiting groove 214 from the first limiting wall 2141 toward the second limiting wall 2142. The second link 533 rotates about the second rotation shaft 5351 and the second shaft pin 217, and rotates from the third limiting wall 2151 toward the fourth limiting wall 2152 along the second limiting groove 215. Meanwhile, the first link 532 presses the first pressing block 534, so that the first pressing block 534 moves toward the negative Y-axis direction and presses the first elastic member 531 toward the negative Y-axis direction. The second link 533 presses the second pressing block 535, and the second pressing block 535 moves toward the Y-axis positive direction and presses the first elastic member 531 toward the Y-axis positive direction, thereby putting the first elastic member 531 in a compressed state.
When the first link 532 rotates from the first limiting wall 2141 toward the second limiting wall 2142, the angle between the first link 532 and the Y direction gradually decreases, the angle between the second acting force F2 of the first link 532 on the first pressing block 534 and the Y direction gradually decreases, the first component force Fa of the second acting force F2 gradually decreases, and the first supporting force F3 received by the first damping swing arm 51 gradually decreases. That is, the damping force applied to the first damping swing arm 51 by the first damping structure 53 through the first pressing block 534 gradually decreases. The damping force applied to the first fixing frame 21 by the first damping swing arm 51 gradually decreases. I.e. the first damping force gradually decreases.
The second link 533 rotates around the third limiting wall 2151 toward the fourth limiting wall 2152. The included angle between the second link 533 and the Y direction is gradually reduced, the included angle between the acting force of the second link 533 on the second pressing block 535 and the Y direction is gradually reduced, and the second holding force F4 of the second pressing block 535 on the second damping swing arm 52 is gradually reduced. That is, the damping force applied to the first damping swing arm 51 by the first damping structure 53 through the second pressing block 535 gradually decreases. The damping force applied to the first fixing frame 21 by the first damping swing arm 51 gradually decreases. I.e. the second damping force gradually decreases. That is, the damping force received by the first fixing frame 21 is gradually reduced, so that it is possible to avoid the rotation mechanism 100 from being difficult to rotate to the half-spread state due to the excessive damping force received by the first fixing frame 21.
It should be noted that, in the process of switching the rotation mechanism 100 from the unfolded state to the half unfolded state, the first acting force F1 received by the first pressing block 534 is a resultant force of the elastic acting force of the first elastic member 531 on the first pressing block 534 and the friction force of the first pressing block 534. The force in the Y direction applied to the second pressing block 535 is a resultant force of the elastic force of the first elastic member 531 to the second pressing block 535 and the frictional force applied to the second pressing block 535.
Meanwhile, when the rotation mechanism 100 is further rotated from the unfolded state to the half unfolded state, the second fixing frame 22 drives the third link 542 and the fourth link 543 to rotate. The third link 542 is rotated by the fifth limiting wall 2241 toward the sixth limiting wall 2242. The fourth link 543 is rotated by the seventh stopper wall 2251 toward the eighth stopper wall 2252. Meanwhile, the third link 542 presses the third pressing block 544, so that the third pressing block 544 moves toward the negative Y-axis direction and presses the second elastic member 541 toward the negative Y-axis direction. The fourth link 543 presses the fourth pressing block 545, and the fourth pressing block 545 moves toward the Y-axis forward direction and presses the second elastic member 541 toward the Y-axis forward direction, thereby putting the second elastic member 541 in a compressed state.
When the third connecting rod 542 rotates from the fifth limiting wall 2241 towards the sixth limiting wall 2242, the included angles between the third connecting rod 542 and the Y direction are gradually reduced, the third supporting force F5 applied to the second damping swing arm 52 is gradually reduced, and the damping force applied to the second damping swing arm 52 by the second damping structure 54 through the third pressing block 544 is gradually reduced. The third damping force applied by the second damping swing arm 52 to the second mount 22 gradually decreases. The fourth connecting rod 543 rotates from the seventh limiting wall 2251 towards the eighth limiting wall 2252, the included angles between the fourth connecting rod 543 and the Y direction are gradually reduced, the fourth supporting force F6 applied to the second damping swing arm 52 is gradually reduced, and the damping force applied to the second damping swing arm 52 by the second damping structure 54 through the fourth pressing block 545 is gradually reduced. The fourth damping force applied by the second damping swing arm 52 to the second mount 22 is gradually reduced. The damping force applied to the second holder 22 gradually decreases. The damping force experienced by the rotary mechanism 100 gradually decreases.
When the rotating mechanism 100 is in the semi-unfolding state, the first fixing frame 21 and the second fixing frame 22 are arranged at an included angle, and the first damping swing arm 51 and the second damping swing arm 52 are arranged at an included angle. In this embodiment, the included angle between the first fixing frame 21 and the second fixing frame 22 is approximately 90 degrees. In other embodiments, the angle between the first mount 21 and the second mount 22 may be slightly greater than 90 degrees, or slightly less than 90 degrees.
At this time, the extending direction of the first link 532 and the extending direction of the second link 533 are both parallel to the Y direction, the component force of the first damping structure 53 acting on the first damping swing arm 51 in the direction parallel to the first direction A1 is 0, and the first holding force F3 and the second holding force F4 are both 0. The first damping force and the second damping force are 0. That is, the first mount 21 receives the first damping structure 53 with a damping force of 0.
Meanwhile, the extension direction of the third link 542 and the extension direction of the fourth link 543 are both parallel to the Y direction, and the component force of the second damping structure 54 on the second fixing frame 22 in the direction parallel to the third direction B1 is 0. The third holding force F5 and the fourth holding force F6 are both 0. The third damping force and the fourth damping force are 0. That is, the second damping structure 54 of the second fixing frame 22 applies a damping force of 0. That is, the damping force to which the rotation mechanism 100 is subjected is 0.
That is, when the rotation mechanism 100 is switched from the unfolded state to the half-unfolded state, the damping force applied to the rotation mechanism 100 gradually decreases from the maximum value to 0.
Referring to fig. 21 and 22 together, fig. 21 is a schematic view of a part of the rotating mechanism 100 shown in fig. 17 in a folded state, and fig. 22 is a model diagram of a part of the rotating mechanism 100 shown in fig. 21 in a folded state.
When the rotation mechanism 100 is switched from the half-unfolded state to the folded state, the first fixing frame 21 and the second fixing frame 22 continue to rotate toward each other, the first fixing frame 21 and the first damping swing arm 51 continue to rotate in the first rotation direction W1, and the second fixing frame 22 and the second damping swing arm 52 continue to rotate in the second rotation direction W2.
When the first fixing frame 21 and the first damping swing arm 51 continue to rotate along the first rotation direction W1, the first body 511 slides along the first chute 212 toward the second side surface 204, and the first slider 512 slides along the first guide slot 216 toward the second side surface 204. That is, the first damping swing arm 51 continues to move toward the first direction A1 relative to the first fixing frame 21. The first fixing frame 21 drives the first connecting rod 532 to rotate from a position parallel to the Y direction towards the second limiting wall 2142. At the same time, the first pressing block 534 moves toward the Y-axis positive direction. The second link 533 rotates from a position parallel to the Y direction toward the fourth stopper wall 2152. At the same time, the second pressing block 535 moves toward the negative Y-axis direction. The compression amount of the first elastic member 531 is gradually reduced, and the elastic restoring force is gradually reduced.
At this time, the second force F2 received by the first link 532 is deviated toward the Y-axis positive direction and toward the first side surface 203. The second force F2 of the first link 532 against the first press block 534 is biased toward the negative Y-axis and away from the second side surface 204. The first component force Fa of the second force F2 in the width direction of the first mount 21 is directed toward the second side surface 204. The force of the first presser 534 on the first damping swing arm 51 is directed in the first direction A1. That is, the direction of the first holding force F3 received by the first damping swing arm 51 coincides with the first direction A1. The direction of the first supporting force F3 is consistent with the moving direction of the first damping swing arm 51 relative to the first fixing frame 21. The first abutting force F3 can promote the first damping swing arm 51 to rotate from the half-unfolded state to the folded state. The first damping force applied to the first mount 21 by the first damping swing arm 51 can promote rotation of the first mount 21.
The first damping force may be understood as a thrust force pushing the first holder 21 to rotate. That is, when the rotation mechanism 100 is switched from the half-unfolded state to the folded state, the first damping structure 53 may push the first fixing frame 21 to rotate along the first rotation direction W1, so that the rotation mechanism 100 may be promoted to be switched to the folded state, so that the rotation mechanism 100 is more convenient to fold.
The direction of the second supporting force F4 applied by the first damping structure 53 to the first damping swing arm 51 is consistent with the moving direction of the first damping swing arm 51 relative to the first fixing frame 21. The second abutting force F4 can promote the rotation of the first damping swing arm 51, and thus can further promote the rotation of the first mount 21. At this time, the second damping force may be understood as a thrust force pushing the first holder 21 to rotate.
Meanwhile, when the rotation mechanism 100 is switched from the half-unfolded state to the folded state, the direction of the third supporting force F5 and the direction of the fourth supporting force F6 applied by the second damping structure 54 to the second damping swing arm 52 are both the same as the moving direction of the second damping swing arm 52 relative to the second fixing frame 22. The third and fourth holding forces F5 and F6 can both promote rotation of the second damping swing arm 52. The third damping force and the fourth damping force applied by the second damping swing arm 52 to the second fixing frame 22 can promote the second fixing frame 22 to rotate, so that the rotating mechanism 100 can be further promoted to be switched to the folding state, and the rotating mechanism 100 is more convenient to fold.
Referring to fig. 20 and 21, as the rotation mechanism 100 is gradually rotated from the half-unfolded state to the folded state, the angle between the first link 532 and the Y direction is gradually increased, and the values of the first damping force are gradually increased. The included angle between the second link 533 and the Y direction gradually increases, and the values of the second damping force gradually increase. That is, the pushing force applied to the first fixing frame 21 by the first damping structure 53 gradually increases.
Similarly, as the rotation mechanism 100 gradually rotates from the half-unfolded state to the folded state, the angles between the third link 542 and the fourth link 543 and the Y direction gradually increase, and the thrust exerted by the second damping structure 54 on the second fixing frame 22 gradually increases.
When the rotating mechanism 100 is in the folded state, the first fixing frame 21 and the second fixing frame 22 are folded relatively, and the first damping swing arm 51 and the second damping swing are folded relatively. The first fixing frame 21 and the second fixing frame 22 are arranged approximately in parallel. That is, the included angle between the first fixing frame 21 and the second fixing frame 22 is approximately 0 degrees.
At this time, the angle between the extending direction of the first link 532 and the Y direction is greater than 0. Along the direction from the first end 5321 to the second end 5322 of the first link 532, the first link 532 is inclined toward the second side surface 204. That is, the first link 532 is substantially parallel to the second limiting wall 2142, and the first link 532 may abut against the second limiting wall 2142, may contact the second limiting wall 2142, or may have a small gap with the second limiting wall 2142. The second link 533 is substantially parallel to the fourth limiting wall 2152. The third link 542 is generally parallel to the sixth limiting wall 2242. The fourth link 543 is substantially parallel to the eighth stop wall 2252. At this time, the damping force applied to the rotation mechanism 100 is negative and the value is maximum.
That is, when the rotation mechanism 100 is switched from the half-unfolded state to the folded state, the damping force applied to the rotation mechanism 100 is gradually reduced from 0 to the minimum value. The absolute value of the damping force received by the rotation mechanism 100 gradually increases from 0 to the maximum value.
In fig. 20, a negative damping force means that the damping force has the same direction as the rotation moment received by the mount 20 when the rotation mechanism 100 rotates, and the damping force may be understood as a thrust force, which may promote the rotation of the rotation mechanism 100.
Referring to fig. 19, 21 and 23, fig. 23 is a diagram showing a damping force change when the rotation mechanism 100 is switched from the folded state to the unfolded state.
When the rotating mechanism 100 is switched from the folded state to the semi-unfolded state, the first fixing frame 21 and the first damping swing arm 51 rotate along the second rotating direction W2, the first body 511 slides along the first sliding groove 212 toward the first side surface 203, and the first slider 512 slides along the first guiding groove 216 toward the first side surface 203. That is, the first damping swing arm 51 moves toward the second direction A2 with respect to the first fixing frame 21.
The first damping structure 53 applies a first urging force F3 and a second urging force F4 to the first damping swing arm 51 toward the first direction A1. The first supporting force F3 and the second supporting force F4 can prevent the rotation of the first damping swing arm 51, so that the rotation of the first fixing frame 21 can be prevented, a damping force is provided for the rotation of the first fixing frame 21, and a damping hand feeling is provided for a user. It is understood that the first damping force and the second damping force are damping forces that prevent the rotation of the first mount 21.
When the rotating mechanism 100 is switched from the folded state to the semi-unfolded state, the second fixing frame 22 and the second damping swing arm 52 rotate along the first rotating direction W1, the second body 521 slides along the second sliding chute 222 toward the third side surface 207, and the second slider 522 slides along the second guiding slot 226 toward the third side surface 207. That is, the second damping swing arm 52 moves toward the fourth direction B2 with respect to the second mount 22.
The third and fourth holding forces F5 and F6 applied by the second damping structure 54 to the second damping swing arm 52 are directed toward the third direction B1. The third supporting force F5 and the fourth supporting force F6 can prevent the second damping swing arm 52 from rotating, so that the second fixing frame 22 can be prevented from rotating, damping force is further provided for the rotation of the second fixing frame 22, and damping hand feeling is provided for a user. It is understood that the third damping force and the fourth damping force are damping forces that prevent the rotation of the second holder 22.
When the rotation mechanism 100 is switched from the folded state to the semi-unfolded state, and the rotation mechanism 100 is in the folded state, the damping force applied to the rotation mechanism 100 is maximum, and the rotation of the rotation mechanism 100 can be prevented by the damping force.
As the first fixing frame 21 and the second fixing frame 22 continue to rotate, the damping force applied to the first fixing frame 21 and the second fixing frame 22 is gradually reduced, and the damping force applied to the rotating mechanism 100 is gradually reduced, so that the rotating mechanism 100 can be prevented from being opened difficultly due to overlarge damping force. When the rotation mechanism 100 is in the half-unfolded state, the damping force applied to the first mount 21 and the second mount 22 is reduced to 0, and the damping force of the rotation mechanism 100 is reduced to 0.
Referring to fig. 17, 19 and 22, when the rotation mechanism 100 is switched from the half-opened state to the opened state by continuing to rotate the first mount 21 and the second mount 22 in directions toward each other, the first damping structure 53 applies the first and second holding forces F3 and F4 to the first damping swing arm 51 in the same direction as the movement direction of the first damping swing arm 51 relative to the first mount 21. The first and second holding forces F3 and F4 can promote rotation of the first damping swing arm 51. The first damping force and the second damping force applied to the first fixing frame 21 by the first damping swing arm 51 can push the first fixing frame 21 to rotate.
Similarly, the third supporting force F5 and the fourth supporting force F6 applied by the second damping structure 54 to the second damping swing arm 52 are the same as the moving direction of the second damping swing arm 52 relative to the second fixing frame 22. The third and fourth holding forces F5 and F6 can promote rotation of the second damping swing arm 52. The third damping force and the fourth damping force applied by the second damping swing arm 52 to the second fixing frame 22 can push the second fixing frame 22 to rotate, so that the rotating mechanism 100 can be promoted to be switched from the semi-unfolding state to the folding state, and the rotating mechanism 100 is more convenient to unfold.
As the first mount 21 and the second mount 22 continue to rotate, the values of the damping forces received by the first mount 21 and the second mount 22 gradually increase. That is, the thrust of the first damping structure 53 when rotating the first fixing frame 21 is gradually increased, and the thrust of the second damping structure 54 when rotating the second fixing frame 22 is gradually increased, so that the rotating mechanism 100 can be quickly switched to the unfolding state, which is more convenient for use, and the use experience of the user is improved.
Referring to fig. 24, fig. 24 is a schematic view of the rotating mechanism 100 shown in fig. 6 at another angle.
The support plate 60 includes a first support plate 61 and a second support plate 62. The first support plate 61 and the second support plate 62 are each of an elongated plate-like structure. The support plate 60 is disposed on one side of the base 10 in the negative Z-axis direction and is located between the first and second holders 21 and 22. That is, the support plate 60 is located on the side of the second center sill 12 facing away from the first center sill 11.
The first support plate 61 and the second support plate 62 are arranged side by side in the X direction with a spacing. Wherein the first support plate 61 is fixedly connected with the first main swing arm 31. The second support plate 62 is fixedly connected with the second main swing arm 32. In the present embodiment, the first support plate 61 and the first main swing arm 31 are fixedly connected by bolts. The second support plate 62 is fixedly connected with the second main swing arm 32 by bolts. In other embodiments, the first support plate 61 may also be fixedly connected to the first main swing arm 31 by welding, bonding, or other means. The second support plate 62 may also be fixedly coupled to the second main swing arm 32 by welding, bonding, or other means.
When the rotating mechanism 100 is in the unfolded state, the first fixing frame 21 and the second fixing frame 22 are unfolded relatively, and the first support plate 61 and the second support plate 62 are arranged in parallel. The surface of the first support plate 61 in the negative Z-axis direction, the surface of the second support plate 62 in the negative Z-axis direction, the surface of the first holder 21 in the negative Z-axis direction, and the surface of the second holder 22 in the negative Z-axis direction are substantially coplanar. The display screen 300 is disposed on the surfaces of the first support plate 61, the second support plate 62, the first fixing frame 21 and the second fixing frame 22 in the negative Z-axis direction. The first support plate 61, the second support plate 62, the first fixing frame 21, and the second fixing frame 22 support the display screen 300 together to ensure good display of the display screen 300.
Referring to fig. 25 together, fig. 25 is a schematic view of a part of the rotating mechanism 100 shown in fig. 24 in a folded state.
When the rotation mechanism 100 is switched from the unfolded state to the folded state, the first fixing frame 21 rotates along the first rotation direction W1, and drives the first main swing arm 31 to rotate along the first rotation direction W1, so as to drive the first support plate 61 to rotate along the first rotation direction W1. The second fixing frame 22 rotates along the second rotation direction W2 to drive the second main swing arm 32 to rotate along the second rotation direction W2, so as to drive the second support plate 62 to rotate along the second rotation direction W2, and to enable the first support plate 61 and the second support plate 62 to be arranged at an included angle. At this time, the outer surface of the support plate 60 is substantially arc-shaped.
When the rotating mechanism 100 is in the folded state, the first fixing frame 21 and the second fixing frame 22 are folded relatively, and the first supporting plate 61 and the second supporting plate 62 are arranged at an included angle. And, the outer surface of the support plate 60 is substantially arc-shaped. The foldable portion of the display 300 is located outside of the rotating mechanism 100. The foldable portion is bent into an arc shape and disposed opposite to the outer surface of the support plate 60. Also, the bending curvature of the foldable portion is substantially the same as the curvature formed between the first support plate 61 and the second support plate 62.
In this embodiment, the rotatable support plate 60 is provided to avoid the display screen 300, so that the rotation mechanism 100 can be prevented from extruding the display screen 300, and adverse phenomena such as crease and the like generated by the display screen 300 are avoided, which is helpful for prolonging the service life of the display screen 300. Meanwhile, when the rotating mechanism 100 is in the folded state, the supporting plate 60 can also play a role in supporting the foldable portion of the display screen 300, so that the display screen 300 can be prevented from being dented.
Referring to fig. 26, fig. 26 is a schematic view of a part of a rotating mechanism 100 according to a second embodiment of the present application.
The present embodiment is different from the embodiment shown in fig. 5 in that in the present embodiment, the first elastic member 531 and the second elastic member 541 are both coil springs. The coil spring has a circular cross section in a direction perpendicular to the extending direction. The first elastic member 531 is installed in the first installation groove 518 and is fixed between the first pressing block 534 and the second pressing block 535. Also, the elastic compression direction of the first elastic member 531 coincides with the Y direction. The second elastic member 541 is mounted in the second mounting groove 528 and is fixed between the third pressing piece 544 and the fourth pressing piece 545. The elastic compression direction of the second elastic member 541 coincides with the Y direction.
In this embodiment, the first elastic member 531 includes three coil springs. The three coil springs of the first elastic member 531 are arranged side by side in the width direction of the first installation groove 518. The second elastic member 541 includes three coil springs. The three coil springs of the second elastic member 541 are arranged side by side in the width direction of the second mounting groove 528.
In this embodiment, the coil springs are used as the first elastic member 531 and the second elastic member 541, which is beneficial to simplifying the structure of the rotation mechanism 100, and plays a role in saving cost. Also, in the present embodiment, the magnitude of the damping force received by the first mount 21 can be changed by changing the number of coil springs in the first elastic member 531, and the magnitude of the damping force received by the second mount 22 can be changed by changing the number of coil springs in the second elastic member 541, thereby changing the magnitude of the damping force received by the rotation mechanism 100.
Referring to fig. 27, fig. 27 is a schematic view of a part of a rotating mechanism 100 according to a third embodiment of the present application.
The present embodiment is different from the embodiment shown in fig. 26 in that in the present embodiment, the first elastic member 531 includes two coil springs. The two coil springs of the first elastic member 531 are arranged side by side in the width direction of the first mounting groove 518. The second elastic member 541 includes two coil springs. The two coil springs of the second elastic member 541 are arranged side by side in the width direction of the second mounting groove 528.
In the case where the specifications and the lengths of the coil springs are the same, the damping force to which the rotation mechanism 100 shown in the present embodiment is subjected at the time of rotation is smaller than that to which the rotation mechanism 100 is subjected in the embodiment shown in fig. 24. The first elastic member 531 and the second elastic member 541 of the present embodiment occupy smaller space, and play a role in saving space.
In other embodiments, the first elastic member 531 may also include one, four, or more than four coil springs. The second elastic member 541 may include one, four, or more than four coil springs. The number of coil springs included in the first and second elastic members 531 and 541 may be specifically adjusted according to the magnitude of the damping force actually required, and the number of coil springs included in the first and second elastic members 531 and 541 is not specifically limited herein.
Referring to fig. 28, fig. 28 is a schematic view of a part of a rotating mechanism 100 according to a fourth embodiment of the present disclosure.
The present embodiment is different from the embodiment shown in fig. 26 in that in the present embodiment, the coil spring has a square cross section in a direction perpendicular to the extending direction. Under the condition of the same elastic force, the space occupied by the coil spring with the square section in the radial direction is smaller, and the space saving effect can be achieved.
In this embodiment, the first elastic member 531 includes three square coil springs. The three coil springs of the first elastic member 531 are arranged side by side in the width direction of the first installation groove 518. The second elastic member 541 includes three square coil springs. The three coil springs of the second elastic member 541 are arranged side by side in the width direction of the second mounting groove 528.
Referring to fig. 29, fig. 29 is a schematic view of a part of a rotating mechanism 100 according to a fifth embodiment of the present disclosure.
The present embodiment is different from the embodiment shown in fig. 28 in that in the present embodiment, the first elastic member 531 includes two square coil springs. The two coil springs of the first elastic member 531 are arranged side by side in the width direction of the first mounting groove 518. The second elastic member 541 includes two square coil springs. The two coil springs of the second elastic member 541 are arranged side by side in the width direction of the second mounting groove 528.
In the case where the specifications and the lengths of the coil springs are the same, the damping force to which the rotation mechanism 100 shown in the present embodiment is subjected at the time of rotation is smaller than that to which the rotation mechanism 100 is subjected in the embodiment shown in fig. 28. The first elastic member 531 and the second elastic member 541 of the present embodiment occupy smaller space, and play a role in saving space.
In other embodiments, the first elastic member 531 may also include one, four, or more than four square coil springs. The second elastic member 541 may include one, four, or more square coil springs. The number of square coil springs included in the first and second elastic members 531 and 541 may be specifically adjusted according to the actually required damping force, and the number of square coil springs included in the first and second elastic members 531 and 541 is not specifically limited herein.
Referring to fig. 30, fig. 30 is a schematic view of a part of a rotating mechanism 100 according to a sixth embodiment of the present disclosure.
This embodiment differs from the embodiment shown in fig. 5 in that in this embodiment, the first damping structure 53 includes a link and a press block. That is, the first damping structure 53 includes the first link 532 and the first press block 534, excluding the second link and the second press block. The opening of the first mounting groove 518 is located on the first upper surface 514 and penetrates the first side 516. The first mounting groove 518 includes a first stop surface 5181 and a second stop surface 5182. The first stop surface 5181 is disposed on a sidewall of the first mounting groove 518. The second stop surface 5182 is disposed opposite the first stop surface 5181. In this embodiment, the second stop surface 5182 is an inner wall surface of the first mounting groove 518 along the X direction.
One end of the first elastic member 531 is fixedly connected to the second stop surface 5182, and the other end is fixedly connected to the first pressing block 534. When the first fixing frame 21 rotates relative to the base 10, the first damping swing arm 51 is driven to rotate relative to the base 10, the first connecting rod 532 rotates around the first rotating shaft 3 and the first shaft pin 4, and the first pressing block 534 slides in the first mounting groove 518 along the Y direction to press or release the first elastic member 531.
In the present embodiment, by providing one link and one pressing block, a damping force can be applied to the first fixing frame 21, so that the structure of the rotation mechanism 100 can be simplified.
The second damping structure 54 and the first damping structure 53 are symmetrically arranged. The second damping structure 54 includes a connecting rod and a mass. That is, the second damping structure 54 includes the third link 542 and the third press block 544, excluding the fourth link and the fourth press block. The second mounting slot 528 extends through the third side 526. The third stop surface 5281 of the second mounting groove 528 is provided on a side wall of the second mounting groove 528. The fourth stop surface 5282 is disposed opposite the third stop surface 5281. In this embodiment, the fourth stop surface 5282 is an inner wall surface of the second mounting groove 528 along the X direction.
One end of the second elastic member 541 is fixedly connected to the fourth stop surface 5282, and the other end is fixedly connected to the third pressing block 544. When the second fixing frame 22 rotates relative to the base 10, the second damping swing arm 52 is driven to rotate relative to the base 10, and the third connecting rod 542 rotates around the third rotating shaft 5441 and the third shaft pin 227, and the third pressing block 544 slides in the Y direction in the second mounting groove 528 to press or release the second elastic member 541.
In the present embodiment, by providing one link and one pressing block, a damping force can be applied to the second fixing frame 22, so that the structure of the rotation mechanism 100 can be simplified. In addition, in the present embodiment, the second damping structure 54 and the first damping structure 53 are disposed in a mirror symmetry manner, so that the stress balance of the two opposite sides of the rotation mechanism 100 in the X direction can be ensured.
In other embodiments, the first damping structure 53 may also include a second mass and a second link, excluding the first mass and the first link. The second damping structure 54 may also include a fourth mass and a fourth link, excluding the third mass and the third link. So long as the first damping structure 53 and the second damping structure 54 are symmetrically disposed.
The above is only a part of examples and embodiments of the present application, and the scope of the present application is not limited thereto, and any person skilled in the art who is familiar with the technical scope of the present application can easily think about the changes or substitutions, and all the changes or substitutions are covered in the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (14)

1. A rotary mechanism, comprising: the damping device comprises a base, a first fixing frame, a first damping swing arm and a first damping structure;
The first fixing frame and the first damping swing arm are arranged on the same side of the base in the width direction, one end of the first damping swing arm is mounted on the base and is rotationally connected with the base, and the other end of the first damping swing arm is in sliding connection with the first fixing frame; when the first fixing frame rotates relative to the base, the first damping swing arm is driven to rotate relative to the base, and slides along the width direction of the first fixing frame relative to the first fixing frame;
the first damping structure comprises a first elastic piece, a first connecting rod and a first pressing block; the first elastic piece and the first pressing block are both arranged on the first damping swing arm, the elastic deformation direction of the first elastic piece is consistent with the length direction of the base, and the first pressing block is arranged on one side of the first elastic piece and mutually propped against the first elastic piece along the length direction of the base; one end of the first connecting rod is rotationally connected with the first pressing block, and the other end of the first connecting rod is rotationally connected with the first fixing frame;
the rotating mechanism is in an unfolding state and a folding state, when the rotating mechanism is in the unfolding state and the folding state, the length direction of the first connecting rod is intersected with the length direction of the base, the first elastic piece is elastically compressed and abuts against the first pressing block, the first pressing block abuts against the first connecting rod and receives the reaction force of the first connecting rod, so that the first pressing block abuts against the first damping swing arm, the first damping swing arm abuts against the first fixing frame, and the first fixing frame receives the damping force.
2. The rotating mechanism according to claim 1, wherein the first mount includes a first side surface and a second side surface, the first side surface and the second side surface being disposed opposite in a width direction of the first mount, and the second side surface facing the base;
the first connecting rod comprises a first end and a second end, the first end and the second end are oppositely arranged along the extending direction of the first connecting rod, the first end is rotationally connected with the first pressing block, and the second end is rotationally connected with the first fixing frame;
when the rotating mechanism is in the unfolding state, the first connecting rod inclines towards the direction of the first side surface from the first end to the second end;
when the rotating mechanism is in the folded state, the first connecting rod inclines towards the direction of the second side surface from the first end to the second end.
3. The rotating mechanism according to claim 2, further comprising a half-unfolded state, wherein the extending direction of the first link is parallel to the longitudinal direction of the base when the rotating mechanism is in the half-unfolded state.
4. A rotary mechanism according to claim 3, wherein the first damping swing arm slides relative to the first mount in a direction toward the first side surface when the rotary mechanism is switched from the extended state to the collapsed state;
when the rotating mechanism is switched from the folding state to the unfolding state, the first damping swing arm slides towards the second side surface direction relative to the first fixing frame.
5. The rotating mechanism according to claim 4, wherein the first damping structure further comprises a second pressing block and a second connecting rod, the second pressing block is arranged on one side of the first elastic piece, which is opposite to the first pressing block, one end of the second connecting rod is rotatably connected with the second pressing block, and the other end of the second connecting rod is rotatably connected with the first fixing frame;
when the rotating mechanism is in the unfolding state and the folding state, the length direction of the second connecting rod is intersected with the length direction of the base, the first elastic piece is elastically compressed and supports against the second pressing block, the second pressing block supports against the second connecting rod and receives the reaction force of the second connecting rod, so that the second pressing block supports against the first damping swing arm, and the direction of the supporting force of the second pressing block on the first damping swing arm is the same as the direction of the supporting force of the first pressing block on the first damping swing arm.
6. The rotating mechanism according to any one of claims 1 to 5, wherein the first elastic member is flat, and a thickness of the first elastic member is smaller than a width and a length of the first elastic member.
7. The rotating mechanism according to claim 6, wherein the first elastic member includes a deformed section, the deformed section being annular; the deformation section comprises two first deformation walls and two second deformation walls, wherein the two first deformation walls are oppositely arranged along the elastic deformation direction of the first elastic piece, and the two second deformation walls are oppositely arranged and are both connected between the two first deformation walls.
8. The rotary mechanism of claim 7, wherein the first elastic member further comprises at least two deformed segments, at least one of the deformed segments being connected between the first deformed walls of each adjacent two of the deformed segments.
9. The rotating mechanism according to claim 6, wherein the first elastic member includes at least two first deformed walls and at least one second deformed wall, the at least two first deformed walls are disposed opposite to each other along the elastic deformation direction of the first elastic member, and one second deformed wall is connected between each two adjacent first deformed walls.
10. The rotating mechanism according to claim 6, wherein the first elastic member includes two connecting sections and a plurality of deformed sections, the two connecting sections are disposed opposite to and spaced apart from each other along an elastic deformation direction of the first elastic member, and each of the deformed sections is connected between the two connecting sections.
11. The rotating mechanism according to claim 6, wherein the first damping swing arm is provided with a first mounting groove, the first pressing block and the first elastic member are both mounted in the first mounting groove, and the first pressing block is slidable along the first mounting groove.
12. The rotating mechanism according to any one of claims 1 to 5, further comprising a second mount, a second damping swing arm, and a second damping structure;
the second fixing frame is arranged opposite to the first fixing frame along the width direction of the base, and the second damping swing arm is arranged opposite to the first damping swing arm; one end of the second damping swing arm is rotationally connected with the base, and the other end of the second damping swing arm is in sliding connection with the second fixing frame; when the second fixing frame rotates relative to the base, the second damping swing arm rotates relative to the base and slides along the width direction of the second fixing frame relative to the second fixing frame;
The second damping structure comprises a second elastic piece, a third connecting rod and a third pressing block; the second elastic piece and the third pressing block are both arranged on the second damping swing arm, and the elastic deformation direction of the second elastic piece is consistent with the length direction of the base; the third pressing block is arranged on one side of the second elastic piece along the length direction of the base and is propped against the second elastic piece; one end of the third connecting rod is rotationally connected with the third pressing block, and the other end of the third connecting rod is rotationally connected with the second fixing frame;
when the rotating mechanism is in the unfolding state and the folding state, the length direction of the third connecting rod is intersected with the length direction of the base, the second elastic piece is elastically compressed and abuts against the third pressing block, the third pressing block abuts against the third connecting rod and receives the reaction force of the third connecting rod, so that the third pressing block abuts against the second damping swing arm, the second damping swing arm abuts against the second fixing frame, and the second fixing frame receives damping force.
13. The rotating mechanism according to claim 12, wherein the base is provided with a first rotating groove and a second rotating groove, and a projection of the first rotating groove along a length direction of the base is at least partially overlapped with the second rotating groove;
The first damping swing arm is arranged in the first rotating groove and can rotate and slide along the first rotating groove; the second damping swing arm is installed in the second rotating groove and can rotate and slide along the second rotating groove.
14. A foldable electronic device, comprising a first housing, a second housing, a display screen, and a rotation mechanism according to any one of claims 1 to 13, wherein the rotation mechanism is connected between the first housing and the second housing, the display screen is mounted on the first housing, the second housing, and the rotation mechanism, and when the rotation mechanism rotates, the first housing and the second housing relatively rotate, so as to drive the display screen to bend or unfold.
CN202311744179.7A 2023-12-19 2023-12-19 Rotating mechanism and foldable electronic device Active CN117419098B (en)

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CN117419098B true CN117419098B (en) 2024-04-09

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CN108965505A (en) * 2017-05-17 2018-12-07 广东欧珀移动通信有限公司 Foldable mobile terminal
CN210157227U (en) * 2019-09-06 2020-03-17 北京小米移动软件有限公司 Folding device, display screen module and mobile terminal
EP3736215A1 (en) * 2019-05-07 2020-11-11 B/E Aerospace, Inc. Dampening hinges and table assemblies including the same
CN112153174A (en) * 2019-06-26 2020-12-29 华为技术有限公司 Terminal
CN116066463A (en) * 2021-10-29 2023-05-05 北京小米移动软件有限公司 Damping mechanism, hinge and folding electronic equipment
CN117135246A (en) * 2023-08-07 2023-11-28 荣耀终端有限公司 Folding device and electronic equipment

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018120086A1 (en) * 2016-12-30 2018-07-05 深圳市柔宇科技有限公司 Support assembly and display device
CN108965505A (en) * 2017-05-17 2018-12-07 广东欧珀移动通信有限公司 Foldable mobile terminal
EP3736215A1 (en) * 2019-05-07 2020-11-11 B/E Aerospace, Inc. Dampening hinges and table assemblies including the same
CN112153174A (en) * 2019-06-26 2020-12-29 华为技术有限公司 Terminal
CN210157227U (en) * 2019-09-06 2020-03-17 北京小米移动软件有限公司 Folding device, display screen module and mobile terminal
CN116066463A (en) * 2021-10-29 2023-05-05 北京小米移动软件有限公司 Damping mechanism, hinge and folding electronic equipment
CN117135246A (en) * 2023-08-07 2023-11-28 荣耀终端有限公司 Folding device and electronic equipment

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