CN111306181B - Hinge unit, hinge, and foldable electronic device - Google Patents

Hinge unit, hinge, and foldable electronic device Download PDF

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Publication number
CN111306181B
CN111306181B CN202010096877.0A CN202010096877A CN111306181B CN 111306181 B CN111306181 B CN 111306181B CN 202010096877 A CN202010096877 A CN 202010096877A CN 111306181 B CN111306181 B CN 111306181B
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China
Prior art keywords
hinge unit
side plate
plate
middle frame
sliding groove
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CN111306181A (en
Inventor
贾玉虎
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Telephone Set Structure (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

The embodiment of the application provides a hinge unit, a hinge and a foldable electronic device, wherein the hinge unit comprises a supporting plate, a first side plate, a second side plate, a first connecting rod, a second connecting rod, a first connecting pin and a second connecting pin, and the supporting plate is provided with a first end and a second end which are opposite. The first side plate is connected to the first end, the first side plate is provided with a first chute, the second side plate is connected to the second end, and the second side plate is provided with a second chute. The first connecting rod is connected to the first side plate; the second connecting rod is connected to the second side plate. The first connecting pin is connected with the first connecting rod and can be embedded in the first sliding groove of the adjacent hinge unit in a sliding manner; the first connecting pin is connected with the second connecting rod and can be embedded in the second sliding groove of the adjacent hinge unit in a sliding mode. When the foldable electronic device is used, the adjacent hinge units cannot interfere the supporting plate when rotating relatively, damage to the flexible display screen is avoided, and the service lives of the hinges and the foldable electronic device can be prolonged.

Description

Hinge unit, hinge, and foldable electronic device
Technical Field
The application relates to the technical field of electronic equipment folding, in particular to a hinge unit, a hinge and foldable electronic equipment.
Background
Along with the development of the existing electronic equipment technology, the foldable flexible display screen is applied, so that the electronic equipment can be folded, and further has a larger display area without worrying about the problem of overlarge volume. Such foldable electronic devices are implemented by hinges when folded, but the hinges in the prior art may cause damage to the flexible display screen when in use.
Disclosure of Invention
An object of the present application is to provide a hinge unit, a hinge, and a foldable electronic device to improve a service life.
The embodiment of the application provides a hinge unit, including backup pad, first curb plate, second curb plate, first connecting rod, second connecting rod, first connecting pin and second connecting pin, the backup pad has relative first end and second end. The first side plate is connected to the first end and extends towards one side of the supporting plate, the first sliding groove is formed in the first side plate, the second side plate is connected to the second end and extends towards the same side of the supporting plate, the second side plate is opposite to the first side plate, and the second sliding groove is formed in the second side plate. One end of the first connecting rod is connected to the first side plate; one end of the second connecting rod is connected to the second side plate. The first connecting pin is connected with one end of the first connecting rod, which is far away from the first side plate, and is embedded in the first sliding groove of the adjacent hinge unit in a sliding manner; the first connecting pin is connected with one end of the second connecting rod, which is far away from the second side plate, and can be embedded in the second sliding groove of the adjacent hinge unit in a sliding manner.
In a second aspect, the present application provides a hinge, including a plurality of hinge units as described above, the support plates of the hinge units are arranged side by side and connected, the first connecting pin is slidably embedded in the first sliding groove of the adjacent hinge unit, and the second connecting pin is slidably embedded in the second sliding groove of the adjacent hinge unit.
In a third aspect, the present application provides a foldable electronic device, which includes a first middle frame, a second middle frame, the hinge and a flexible display screen, wherein the first middle frame and the second middle frame are connected by the hinge and selectively folded or unfolded relatively. The flexible display screen is laid on the first middle frame, the supporting plate and the second middle frame.
The application provides a hinge unit, hinge and collapsible electronic equipment, through first connecting rod and the cooperation of first connecting pin, second connecting rod and the cooperation of second connecting pin, during the use, adjacent hinge unit can not form the interference to the backup pad when taking place relative rotation, has just also avoided forming the damage to flexible display screen, and then can improve hinge and collapsible electronic equipment's life.
These and other aspects of the present application will be more readily apparent from the following description of the embodiments.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a hinge provided in an embodiment of the present application in a planar state;
fig. 2 is a schematic structural diagram of a hinge unit provided in an embodiment of the present application at a first viewing angle;
fig. 3 is a schematic structural diagram of a hinge unit provided in an embodiment of the present application at a second viewing angle;
fig. 4 is a schematic structural diagram of a first connecting pin in a hinge unit according to an embodiment of the present disclosure;
FIG. 5 is a schematic structural diagram of a first link in a hinge unit according to an embodiment of the present disclosure;
FIG. 6 is a schematic structural diagram of a hinge in a bent state according to an embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of a foldable electronic device provided in an embodiment of the present application;
FIG. 8 is an enlarged view at VIII in FIG. 7;
FIG. 9 is an enlarged view taken at IX in FIG. 7;
fig. 10 is a schematic partial cross-sectional structure diagram of a foldable electronic device provided in the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
With the rapid development of electronic devices (such as mobile terminals), flexible display screens are being used, so that the electronic devices can be folded and have a larger display area without worrying about the problem of overlarge size. The foldable electronic equipment comprises an inward folding type or an outward folding type, wherein the inward folding type has the advantages that the shell can effectively protect the screen and reduce the influence of external impact and abrasion, but the bending R angle of the inward folding flexible screen is smaller, the optimization requirement on the local space of the hinge mechanism is high, and the flexible screen is pierced by the hinge in the market and other adverse phenomena. Therefore, the inventors propose a hinge unit, a hinge, and a foldable electronic device in the embodiments of the present application. Embodiments of the present application will be described in detail below with reference to the accompanying drawings.
Referring to fig. 1, the present embodiment provides a hinge 10, which includes a plurality of hinge units 11, the hinge units 11 are disposed side by side, adjacent hinge units 11 are connected and can rotate relatively, and two ends of the hinge 10 can be respectively used for connecting a middle frame to form a foldable electronic device.
Specifically, referring to fig. 1, each hinge unit 11 includes a support plate 100, a first side plate 200, a second side plate 300, a first link 400, a second link 500, a first connection pin 600, and a second connection pin 700, wherein the first link 400 is connected to the first side plate 200, the second link 500 is connected to the second side plate 300, the first connection pin 600 is connected to the first link 400, and the second connection pin 700 is used to be connected to the second link 500.
Referring to fig. 2 and 3, the supporting board 100 is a substantially strip-shaped flat board having a substantially planar supporting surface 101, and the supporting surface 101 can be used for supporting the flexible display 40. The two ends of the supporting plate 100 in the length direction are a first end 110 and a second end 120, respectively, and the first end 110 and the second end 120 may be used for arranging the first side plate 200 and the second side plate 300, respectively. The support plate 100 also has a first edge 130 and a second edge 140 in the width direction, the first edge 130 being opposite the second edge 140, and in some embodiments, the first edge 130 and the second edge 140 are substantially parallel.
The first side plate 200 is connected to the first end 110 of the supporting plate 100 and extends towards the side facing away from the supporting surface 101, and the second side plate 300 is connected to the second end 120 of the supporting plate 100 and extends towards the side facing away from the supporting surface 101, i.e. the first side plate 200 and the second side plate 300 extend towards the same side of the supporting plate 100, and the first side plate 200 and the second side plate 300 are opposite. In some embodiments, the first side plate 200 and the second side plate 300 may be symmetrically disposed and have substantially the same structure.
Referring to fig. 1 again, the first side plate 200 is provided with a first sliding groove 210, the first sliding groove 210 is used for sliding connection with the adjacent hinge unit 11, the second side plate 300 is provided with a second sliding groove 310, and the second sliding groove 310 is used for sliding connection with the adjacent hinge unit 11. The first sliding groove 210 and the second sliding groove 310 may have substantially the same stroke, which is an effective sliding distance for sliding components disposed in the sliding grooves. The first sliding groove 210 may extend through the first side plate 200, and the second sliding groove 310 may extend through the second side plate 300, which may facilitate assembly. Of course, the first sliding groove 210 may not extend through the first side plate 200, and the second sliding groove 310 may not extend through the second side plate 300.
Referring to fig. 3, one end of the first link 400 is connected to the first side plate 200, and the other end is located outside the first side plate 200 and connected to the first connecting pin 600, in some embodiments, the first link 400 is fixedly connected to the first side plate 200, and one end of the first link 400, which is used for being connected to the first connecting pin 600, protrudes out of the first edge 130, so that it can be connected to the adjacent hinge unit 11. One end of the second link 500 is connected to the second side plate 300, and the other end is located outside the second side plate 300 and connected to the second connecting pin 700. in some embodiments, the second link 500 is fixedly connected to the second side plate 300, and the end of the second link 500, which is used for being connected to the second connecting pin 700, protrudes out of the first edge 130, so that it can be connected to the adjacent hinge unit 11.
In this embodiment, the first side plate 200 is provided with a first mounting hole 220, the first mounting hole 220 is used for mounting the first link 400, and the first mounting hole 220 and the first sliding chute 210 are staggered from each other in the width direction of the support plate 100, that is, the first mounting hole 220 is close to the first edge 130, and the first sliding chute 210 is close to the second edge 140. The hinge unit 11 further includes a first fixing pin 800, and the first fixing pin 800 is embedded in the first mounting hole 220 and connected to the first link 400. In some embodiments, the first fixing pin 800 may be embedded in the first mounting hole 220 in an interference manner, so that the first fixing pin 800 and the first mounting hole 220 do not rotate relatively. In other embodiments, the first fixing pin 800 may be inserted into the first mounting hole 220 by a key connection.
The second side plate 300 is provided with a second mounting hole (not shown) for mounting the second link 500, and the second mounting hole and the second sliding groove 310 are staggered from each other in the width direction of the support plate 100, that is, the second mounting hole is near the first edge 130, and the second sliding groove 310 is near the second edge 140. Referring to fig. 1 again, the hinge unit 11 further includes a second fixing pin 900, and the second fixing pin 900 is embedded in the second mounting hole and connected to the second connecting rod 500. In some embodiments, the second fixing pin 900 may be embedded in the second mounting hole in an interference manner, so that the second fixing pin 900 does not rotate relative to the second mounting hole. In other embodiments, the second fixing pin 900 may be embedded in the second mounting hole by a key connection.
Of course, it is understood that in some embodiments, the first link 400 may also be directly embedded in the first side plate 200, for example, a slot matching with the first link 400 is provided on the first side plate 200, the first link 400 is embedded in the slot to form an assembly, and similarly, the second link 500 may also adopt a similar connection manner.
The first connecting pin 600 is connected to one end of the first link 400 away from the first side plate 200, and slidably embedded in the first sliding groove 210 of the adjacent hinge unit 11; the first connecting pin 600 is connected to an end of the second link 500 remote from the second side plate 300 and slidably fitted into the second sliding groove 310 of the adjacent hinge unit 11. When the hinge 10 is bent, the first connecting pin 600 slides in the first sliding slot 210, and the second connecting pin 700 slides in the second sliding slot 310.
Referring to fig. 4, as an embodiment, the first connecting pin 600 includes a connecting portion 620 and a fixing pair 610, the connecting portion 620 is used for connecting the first connecting rod 400 and the fixing pair 610, the fixing pair 610 has an arc abutting surface 611 engaged with the first sliding groove 210 of the adjacent hinge unit 11, the arc abutting surface 611 may be two, and the two arc abutting surfaces 611 are disposed opposite to each other. The connecting portion 620 may be inserted into the connecting hole 410 of the first link 400 to form an assembly, for example, may be inserted into the connecting hole 410 in an interference manner, so as to prevent relative rotation between the connecting portion 620 and the first link 400.
The connection part 620 is substantially cylindrical and connected to the end of the fixing pair 610, which corresponds to the eccentric arrangement of the fixing pair 610, and the connection part 620 is close to the hollow 205 of the adjacent hinge unit 11, so that the deflection angle of the first link 400 with respect to the normal of the support plate 100 can be smaller, and therefore, the length of the first link 400 does not need to be set to be long, the first connection pin 600 can be connected, and since the length of the first link 400 is short, when the hinge 10 is forced to bend, the moment applied by the first link 400 to the adjacent hinge unit 11 can be increased, so that the hinge 10 can be bent more easily. The normal of the support plate 100 refers to a straight line perpendicular to the plane of the support plate 100.
Referring to fig. 3 and 4, in some embodiments, the angle α between the extending direction of the first link 400 and the normal direction of the support plate 100 is approximately 25-30 °, and the extending direction of the second link 500 is approximately parallel to the extending direction of the first link 400, so that the angle between the extending direction of the second link 500 and the normal direction of the support plate 100 is approximately 25-30 °. At this angle, when the first connecting pin 600 slides to the end of the first sliding groove 210, the two adjacent hinge units 11 reach the maximum relative rotation angle, and the deflection of the support plate 100 with respect to the adjacent hinge units is small, and the flexible display screen 40 is not damaged.
When the first connecting pin 600 is inserted into the first sliding groove 210, the arc abutting surface 611 abuts against the inner wall of the first sliding groove 210, and accordingly, the first sliding groove 210 may be disposed in the form of an arc groove, and the center of the arc groove faces the side of the support plate 100. The stroke of the first slide groove 210 and the stroke of the second slide groove 310 determine the relative bending angle of the adjacent hinge unit 11, and thus the arc swept by the strokes of the first slide groove 210 and the second slide groove 310 may be set to pi/10-pi/6, for example.
Referring to fig. 4 and 5, in order to further prevent the relative rotation between the connection portion 620 and the first link 400, in some embodiments, a groove 420 is formed on an inner wall of the connection hole 410, the groove 420 is communicated with the connection hole 410, the first connection pin 600 further includes a protrusion 630, the protrusion 630 is connected to the connection portion 620 and protrudes in a radial direction of the connection portion 620, the connection portion 620 is at least partially disposed in the connection hole 410, and the protrusion 630 is embedded in the groove 420, at this time, a circumferential freedom degree of the connection portion 620 is limited by the protrusion 630, and the relative rotation cannot occur. In other embodiments, the connection portion 620 may be connected to the first link 400 by a key connection or other locking means.
It should be noted that the structure of the second connecting pin 700 may be the same as the first connecting pin 600, and the structure of the second link 500 may also be substantially the same as the structure of the first link 400, which is not described herein again.
In this embodiment, referring to fig. 3 again, each of the first side plate 200 and the second side plate 300 includes a first plate 201 and a second plate 202, the first plate 201 is connected to the supporting plate 100, the second plate 202 is connected to a side of the first plate 201 away from the supporting plate 100, the first mounting hole 220 or the second mounting hole is disposed in the first plate 201, and the first sliding slot 210 or the second sliding slot 310 is disposed in the second plate 202. That is, the first mounting hole 220 is opened at a portion of the first side plate 200 close to the supporting plate 100, the first sliding groove 210 is opened at a portion of the first side plate 200 far from the supporting plate 100, the second mounting hole is opened at a portion of the second side plate 300 close to the supporting plate 100, and the second sliding groove 310 is opened at a portion of the second side plate 300 far from the supporting plate 100, so as to form the inward folding type hinge unit 11, that is, when the hinge 10 is folded relatively, the folding direction is a form that the supporting plate 100 is inside.
In some embodiments, the second plate 202 includes a first side 203 and a second side 204 opposite to each other, the first side 203 is recessed relative to an edge of the support plate 100 to form a hollow 205, the second side 204 protrudes relative to the edge of the support plate 100 to form a protrusion 206, the hollow 205 is engaged with the protrusion 206 of the adjacent hinge unit 11, the protrusion 206 is engaged with the hollow 205 of the adjacent hinge unit 11, the first sliding groove 210 or the second sliding groove 310 is at least partially opened on the protrusion 206, and the first mounting hole 220 and the second mounting hole may correspond to the hollow 205. In the adjacent hinge unit 11, the hollow 205 is engaged with the protrusion 206 of the adjacent hinge unit 11 and receives the protrusion 206 of the adjacent hinge unit 11. Similarly, the protrusion 206 is engaged with the hollow 205 of the adjacent hinge unit 11 and embedded into the hollow 205 of the adjacent hinge unit 11, so as to form a completely attached structure side by side.
The advantages of such an arrangement are: referring to fig. 6, when the hinge 10 rotates, since the first sliding groove 210 and the second sliding groove 310 are at least partially disposed on the protruding portion 206, and the protruding portion 206 is embedded in the hollow 205 of the adjacent hinge unit 11, the first link 400 does not need to be disposed very long, and can be connected to the first sliding groove 210, thereby further reducing the length of the first link 400. Similarly, the second connecting rod 500 does not need to be arranged very long, and can be connected to the second sliding groove 310, so that the first connecting rod 400 and the second connecting rod 500 do not interfere with the supporting plate 100 in the using process, the flexible display screen 40 is not damaged, the rotating moment is larger, and the user can bend more easily.
In some embodiments, the first link 400 is connected to a side of the first side plate 200 facing the second side plate 300, and the second link 500 is connected to a side of the second side plate 300 facing the first side plate 200. After the arrangement, the connecting rods cannot be seen from the outside of the hinge 10, so that a better aesthetic effect is achieved, and meanwhile, the probability of damage to the first connecting rod 400 and the second connecting rod 500 can be reduced due to the fact that the first connecting rod 400 and the second connecting rod 500 are accommodated between the first side plate 200 and the second side plate 300. Of course, in other embodiments, the first link 400 and the second link 500 may be located at the outer side, that is, the first link 400 is connected to the side of the first side plate 200 away from the second side plate 300, and the second link 500 is connected to the side of the second side plate 300 away from the first side plate 200.
The first connecting pin 600 of each hinge unit 11 is slidably inserted into the first sliding groove 210 of the adjacent hinge unit 11, and the second connecting pin 700 is slidably inserted into the second sliding groove 310 of the adjacent hinge unit 11, which are connected to form the hinge 10. In some embodiments, the support plates 100 of the plurality of hinge units 11 may be connected by being adhered to each other.
In the hinge 10 provided by the present embodiment, the plurality of hinge units 11 are arranged side by side and can rotate relatively, and the rotation angle can reach 180 ° or more than 180 °. Both ends of the hinge 10 may be used to connect two middle frames for forming the foldable electronic device 1.
Referring to fig. 7, the present embodiment further provides a foldable electronic device 1, which includes a first middle frame 20, a second middle frame 30, a flexible display 40 and the hinge 10, wherein the first middle frame 20 and the second middle frame 30 are connected by the hinge 10 and selectively folded or unfolded relatively, when the first middle frame 20 and the second middle frame 30 are folded relatively, the first middle frame 20 and the second middle frame 30 may be in a substantially parallel state, and when the first middle frame 20 and the second middle frame 30 are unfolded relatively, the first middle frame 20 and the second middle frame 30 may be located on the same plane.
The first and second middle frames 20 and 30 are respectively connected to opposite ends of the hinge 10, and particularly, both ends of the support plate 100 of the single hinge unit 11 in the width direction, and in some embodiments, the first and second middle frames 20 and 30 may be flexibly connected directly to the support plate 100 of the hinge 10. In this embodiment, referring to fig. 8 and 9, the first middle frame 20 has two sliding slots 21, and the second middle frame 30 is connected to two connecting rods 31. Wherein the two sliding grooves 21 may be provided in the same form as the first and second sliding grooves 210 and 310, respectively, and the two connecting rods 31 may be provided in the same form as the first and second connecting rods 400 and 500.
The first connecting pin 600 and the second connecting pin 700 of the hinge unit 11 adjacent to the first middle frame 20 are respectively slidably fitted in one of the slide grooves 21, one of the links 31 is connected to the first slide groove 210 of the hinge unit 11 adjacent to the second middle frame 30 by one of the first connecting pins 600, and the other link 31 is connected to the second slide groove 310 of the hinge unit 11 adjacent to the second middle frame 30 by one of the second connecting pins 700. The advantages of such an arrangement are: the number of hinge units 11 of the hinge 10 can be reduced, thereby reducing the width of the hinge 10 and the space between the first middle frame 20 and the second middle frame 30, so that the foldable electronic device 1 is reduced in volume, and at the same time, the volume of the bending region is reduced when bending.
The flexible display screen 40 is a flexible display screen that can be bent, and the flexible display screen 40 is laid on the first middle frame 20, the support plate 100, and the second middle frame 30. When rotated, the flexible display 40 is located at the inner side, i.e. the fold-in screen type foldable electronic device 1. It will be appreciated that in other embodiments, the flexible display 40 may also be located outside, i.e. outside the foldable electronic device 1.
In some embodiments, in order to better protect the flexible display screen 40, referring to fig. 10, the foldable electronic device 1 may further include a buffer layer 50, the buffer layer 50 is disposed on the first middle frame 20, the support plate 100 and the second middle frame 30, and the flexible display screen 40 is disposed on a surface of the buffer layer 50. The cushioning layer 50 may be made of foam, silicone, or the like. The cushioning layer 50 may be adhesively bonded to the first middle frame 20 and the support plate 100 and the second middle frame 30, and the flexible display 40 may also be adhesively secured to the surface of the cushioning layer 50 on the side of the cushioning layer 50 away from the hinge 10. Thus, when the hinge 10 is bent, the sharp corners of the adjacent support plates 100, which are generated when the relative rotation occurs, only act on the buffer layer 50, and do not directly contact the flexible display screen 40.
Through setting up buffer layer 50, can effectually protect flexible display screen 40 at the in-process of buckling, prevent that hinge 10 from causing the damage to flexible display screen 40. It is understood that a space formed between the first side plate 200 and the second side plate 300 of the hinge unit 11 may be provided for disposing a flexible circuit board or other elements. And may be sealed by a rear cover. In some embodiments, in adjacent hinge units 11, a flexible elastic material, such as a pleated plastic, may be connected between adjacent first side plates 200 to form a seal, and a flexible elastic material may be connected between the same adjacent second side plates 300 to protect various elements within the hinge 10.
According to the foldable electronic device 1 provided by the embodiment, by arranging the hinge 10, the flexible display screen 40 is not damaged in the relative folding and unfolding processes, and the service life of the foldable electronic device 1 can be further prolonged.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (11)

1. A hinge unit, characterized by comprising:
a support plate having opposing first and second ends;
the first side plate is connected to the first end and extends to one side of the supporting plate, the first side plate is provided with a first sliding groove and a first mounting hole, and the first mounting hole and the first sliding groove are staggered in the width direction of the supporting plate;
the second side plate is connected to the second end and extends to the same side of the supporting plate, the second side plate is opposite to the first side plate, the second side plate is provided with a second sliding groove and a second mounting hole, and the second mounting hole and the second sliding groove are staggered in the width direction of the supporting plate;
one end of the first connecting rod is connected to the first mounting hole of the first side plate and is positioned on one side of the first side plate, which faces the second side plate;
one end of the second connecting rod is connected to the second mounting hole of the second side plate and is positioned on one side of the second side plate, which faces the first side plate;
the first connecting pin is connected with one end of the first connecting rod, which is far away from the first side plate, and can be embedded in the first sliding groove of the adjacent hinge unit in a sliding manner; and
and the first connecting pin is connected with one end of the second connecting rod, which is far away from the second side plate, and can be slidably embedded in the second sliding groove of the adjacent hinge unit.
2. The hinge unit according to claim 1, wherein each of the first side plate and the second side plate includes a first plate body and a second plate body, the first plate body is connected to the support plate, the second plate body is connected to a side of the first plate body away from the support plate, the first mounting hole or the second mounting hole is opened in the first plate body, and the first sliding groove or the second sliding groove is opened in the second plate body.
3. The hinge unit of claim 2, wherein the second plate body includes a first side and a second side opposite to each other, the first side being recessed relative to an edge of the support plate to form a hollow, the second side protruding relative to the edge of the support plate to form a protrusion, the hollow cooperating with the protrusion of the adjacent hinge unit, the protrusion cooperating with the hollow of the adjacent hinge unit, and the first runner or the second runner opening at least partially into the protrusion.
4. The hinge unit according to claim 1, further comprising a first fixing pin and a second fixing pin, wherein the first fixing pin is embedded in the first mounting hole and connected to the first connecting rod, and the second fixing pin is embedded in the second mounting hole and connected to the second connecting rod.
5. The hinge unit according to claim 1, wherein the first connecting pin includes a connecting portion connecting the first link and a fixing pair, and a fixing pair having an arc-shaped abutting surface engaged with the first sliding groove of an adjacent hinge unit.
6. The hinge unit according to claim 5, wherein the first link is provided with a connection hole, an inner wall of the connection hole is provided with a groove, the first connection pin further comprises a projection, the projection is connected to the connection portion, the connection portion is at least partially disposed in the connection hole, and the projection is embedded in the groove.
7. The hinge unit according to claim 5, wherein the first sliding slot is an arc-shaped slot cooperating with the fixed pair of the adjacent hinge unit, so that the arc-shaped abutting surface always abuts against the inner wall of the first sliding slot when the fixed pair of the adjacent hinge unit slides in the first sliding slot.
8. A hinge, comprising:
a plurality of hinge units according to any one of claims 1 to 7, wherein the support plates of the plurality of hinge units are arranged side by side and connected, the first connecting pin is slidably fitted in the first slide groove of an adjacent hinge unit, and the second connecting pin is slidably fitted in the second slide groove of an adjacent hinge unit.
9. A foldable electronic device, comprising:
a first middle frame;
a second middle frame;
the hinge of claim 8, wherein the first middle frame and the second middle frame are connected by the hinge and selectively folded or unfolded relatively; and
the flexible display screen is laid on the first middle frame, the supporting plate and the second middle frame.
10. The foldable electronic device of claim 9, further comprising a buffer layer disposed on the first middle frame, the support plate, and the second middle frame, wherein the flexible display screen is disposed on a surface of the buffer layer.
11. The foldable electronic device of claim 10, wherein the first middle frame is provided with two sliding slots, and the second middle frame is connected with two connecting rods;
the first connecting pin and the second connecting pin of the hinge unit close to the first middle frame are respectively embedded in one sliding groove in a sliding mode, one connecting rod is connected to the first sliding groove of the hinge unit close to the second middle frame through one first connecting pin, and the other connecting rod is connected to the second sliding groove of the hinge unit close to the second middle frame through one second connecting pin.
CN202010096877.0A 2020-02-17 2020-02-17 Hinge unit, hinge, and foldable electronic device Active CN111306181B (en)

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CN202010096877.0A CN111306181B (en) 2020-02-17 2020-02-17 Hinge unit, hinge, and foldable electronic device

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