WO2022206644A1 - 折叠电子设备 - Google Patents
折叠电子设备 Download PDFInfo
- Publication number
- WO2022206644A1 WO2022206644A1 PCT/CN2022/083232 CN2022083232W WO2022206644A1 WO 2022206644 A1 WO2022206644 A1 WO 2022206644A1 CN 2022083232 W CN2022083232 W CN 2022083232W WO 2022206644 A1 WO2022206644 A1 WO 2022206644A1
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- WO
- WIPO (PCT)
- Prior art keywords
- casing
- main shaft
- fixing frame
- transmission arm
- rotating
- Prior art date
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Images
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
- H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
- H04M1/0214—Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
- H04M1/0216—Foldable in one direction, i.e. using a one degree of freedom hinge
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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
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
- H04M1/0268—Details of the structure or mounting of specific components for a display module assembly including a flexible display panel
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/18—Telephone sets specially adapted for use in ships, mines, or other places exposed to adverse environment
Definitions
- the present application relates to the field of terminal devices, and in particular, to a folding electronic device.
- the folding screen mobile phone uses a flexible screen, and the flexible screen has the advantages of flexible bending, lightness, and non-breakability.
- the flexible screen in the folding screen mobile phone needs to consider waterproof design to avoid water vapor erosion (for example, the sweat on the skin may invade the flexible screen when the human hand holds it).
- the waterproof effect of the flexible screen of the existing folding screen mobile phone is not good, which affects the life of the flexible screen.
- the technical solution of the present application provides a folding electronic device, which can improve the waterproof performance of the flexible screen.
- the folding electronic device includes a first casing, a second casing and a flexible screen; the first casing and the second casing can be relatively rotated to unfold or fold, and the edge of the first casing and/or the edge of the second casing
- the flexible screen includes a flexible cover plate and a display panel, the flexible cover plate and the display panel are attached, and the edge of the flexible cover plate exceeds the boundary of the display panel
- the flexible screen is installed on the first housing and the second housing, wherein at least part of the display panel is located in the receiving groove, at least part of the inner surface of the edge of the flexible cover plate is fixedly connected with the frame; the neutral layer of the flexible screen is located in the flexible cover plate.
- the first casing and the second casing can be relatively rotated and closed, so that the first casing and the second casing are in a folded state, that is, the foldable electronic device is in a folded state; the first casing and the second casing are in a folded state;
- the two housings can also be rotated and unfolded relatively, so that the first housing and the second housing are in an unfolded state, that is, the foldable electronic device is in an unfolded state.
- the bounding box can be distributed only in the local area of the edge.
- the frame is approximately a wall-like structure. All areas of the edge of the flexible cover plate may extend beyond the corresponding boundary of the display panel.
- the accommodating groove accommodates a portion of the display panel corresponding to the accommodating groove.
- the edge of the first casing and the edge of the second casing both have borders, the receiving groove on the first casing accommodates a part of the display panel, and the receiving groove on the second casing accommodates another part of the display panel.
- the first housing has an accommodating groove, the accommodating groove accommodates a part of the display panel, and the other parts of the display panel are all outside the accommodating groove.
- the inner surface of the flexible cover plate faces the display panel, and the outer surface of the flexible cover plate faces away from the display panel.
- the edge of the flexible cover refers to the portion of the flexible cover that extends beyond the display panel.
- At least a part of the inner surface of the edge of the flexible cover plate is fixedly connected to the top surface of the frame, specifically, the inner surface of this part of the flexible cover plate is fixedly connected to the top surface of the frame.
- the neutral layer of the flexible screen may be located between the inner surface and the outer surface of the flexible cover plate, including the inner surface and the outer surface.
- a frame and a receiving groove structure are designed on the first casing and/or the second casing, so that the edge of the flexible cover is fixedly connected to the frame, The inlet of the external water vapor can be well blocked, and the communication path between the display panel and the outside world can be extended, so that it is difficult for water vapor to penetrate the display panel, thereby improving the waterproof performance of the flexible screen.
- the frame does not press the edge of the flexible cover, the effective display area of the flexible screen is not affected, and the frame of the folding electronic device is narrower, and the product appearance experience is better.
- the neutral layer of the flexible screen is adjusted into the flexible cover plate, so that the deformation of the flexible cover plate during the bending process is reduced, and permanent deformation is less likely to occur.
- the flatness of the flexible cover can be guaranteed.
- the flatness of the flexible cover plate is good, the light and shadow effect of the reflection of the external environment on the flexible cover plate is more in line with the actual situation, and light and shadow distortion is less likely to occur.
- the adhesive force of the optically transparent adhesive layer in the flexible screen is sufficient to resist the slippage caused by the length change between the layers, so that the It is not easy to slip between the layers.
- the design of arranging the neutral layer of the flexible screen in the flexible cover can be adapted to the design of fixedly connecting at least part of the periphery of the flexible cover to the casing of the folding device, thereby reducing the bending process of the flexible screen.
- the risk of dislocation occurs and the reliability of the flexible screen is improved.
- the neutral layer is located on the surface of the flexible cover plate facing away from the display panel. In this implementation manner, the neutral layer is located on the outer surface of the flexible cover plate.
- the outer surface of the flexible cover is the appearance surface of the foldable electronic device, so that the neutral layer is located on the outer surface, which can ensure the flatness and light and shadow effect of the appearance surface of the product, and improve the quality of the product.
- the frame includes a first step and a second step, the first step is connected to the second step, the first step is located on the inner circumference of the second step, the area surrounded by the first step forms a receiving groove, the first step is The step surface of the step is lower than the step surface of the second step; at least a part of the inner surface of the edge of the flexible cover plate is fixedly connected with the step surface of the first step, and the surface of the flexible cover plate facing away from the display panel is not higher than the step surface of the second step noodle.
- the second step of the frame can accommodate and protect the frame, and this design can enhance the protection of the casing to the flexible screen and ensure the reliability of the product.
- the display panel is spaced from the side surface of the receiving groove; and/or the height of the first step is 0.4mm-1.0mm; and/or the width of the first step is 0.6mm-1.2mm.
- the display panel and the side surface of the accommodating groove are designed with an interval, so that a dimensional margin can be reserved in consideration of manufacturing errors, and the accurate matching between the display panel and the accommodating groove can be ensured.
- the size design of the first step is beneficial to ensure reliable cooperation between the casing and the flexible screen.
- At least a part of the inner surface of the edge of the flexible cover plate and the frame are bonded by waterproof glue.
- waterproof glue can reliably ensure the waterproof performance of the flexible screen.
- the folding electronic device includes a hinge, the hinge connects the first casing and the second casing, and the hinge is used to generate a mechanical movement, so that the first casing and the second casing can rotate relative to each other to unfold or fold;
- the hinge includes a first end block and a second end block, the first end block and the second end block are respectively located at opposite ends in the direction of the rotation axis of the first housing; the opposite ends of the flexible cover plate The edges on both sides are respectively provided with a first notch and a second notch, the first end block is located in the first notch, and the second end block is located in the second notch.
- the direction of the rotation axis of the first casing refers to the direction of the rotation axis of the first casing relative to the rotation of the second casing.
- the first end block and the second end block can be used as appearance parts at both ends of the foldable electronic device, and play a decorative and beautifying role. Both the first notch and the second notch can avoid the end stopper (the first end stopper and the second end stopper collectively).
- the folding electronic device includes a hinge, the hinge connects the first casing and the second casing, and the hinge is used to generate a mechanical movement, so that the first casing and the second casing can rotate relative to each other to unfold or fold;
- the hinge includes a main shaft, a first fixed frame, a second fixed frame, a first transmission arm, a first rotating arm, a second transmission arm and a second rotating arm; the first casing and the second casing are respectively located on opposite sides of the main shaft ;
- the first fixed frame is fixed on the first casing, the second fixed frame is fixed on the second casing;
- the first transmission arm includes a sliding end and a rotating end, the sliding end of the first transmission arm is slidably connected to the second fixed frame, the first The rotating end of the transmission arm is rotatably connected to the main shaft; one end of the first rotating arm is rotatably connected to the rotating end of the first transmission arm, and the other end is rotatably connected to the first fixed frame;
- the second transmission arm includes
- the rotating end of the first transmission arm is rotatably connected to the main shaft
- the sliding end is slidably connected to the second fixing frame
- the second fixing frame is fixed to the second housing
- the rotating end of the second transmission arm is rotatably connected to the main shaft and the sliding end
- the first fixed frame is slidably connected, and the first fixed frame is fixed to the first casing. Therefore, during the relative rotation of the first casing and the second casing, the first casing drives the first fixed frame to rotate relative to the main shaft, and the second casing rotates relative to the main shaft.
- the transmission arm rotates relative to the main shaft with the first fixed frame, and the second transmission arm slides relative to the first fixed frame, the second housing drives the second fixed frame to rotate relative to the main shaft, the first transmission arm rotates relative to the main shaft with the second fixed frame, and The first transmission arm slides relative to the second fixed frame, so the folding device (the first housing, the hinge and the second housing collectively referred to as the folding device) can be freely switched between the flattened state and the closed state.
- the two shells can be relatively unfolded to a flat state, so that the flexible screen is in a flat shape to realize large-screen display, and the first shell and the second shell can also be relatively folded to a closed state, so that the electronic device is easy to store and store. carry.
- first shell and the second shell when folded relative to the closed state through the hinge, they can be completely closed, and there is no gap or small gap between the two, so that the appearance of the folding device is relatively complete, and the appearance is self-shading.
- the appearance of the electronic device of the folding device is relatively complete, which is beneficial to improve the reliability of the product and the user experience.
- the first transmission arm When the first casing and the second casing are relatively unfolded to a flat state, the first transmission arm is rotated into the main shaft, so that the first rotating arm extends out of the main shaft, and the first rotating arm moves the first casing through the first fixing frame.
- the body is pushed away from the main shaft, and the second transmission arm is rotated into the main shaft, so that the second rotating arm extends out of the main shaft, and the second rotating arm pushes the second housing away from the main shaft through the second fixing frame.
- the first transmission arm rotates out of the main shaft, so that the first rotating arm extends into the main shaft, and the first rotating arm attaches the first casing to the first casing through the first fixing frame.
- the hinge can cause the first fixing frame to drive the first casing to move away from the main shaft, and the second fixing frame to drive the second casing to move away from the main shaft during the relative unfolding of the first casing and the second casing.
- the first fixed frame drives the first casing to move in the direction close to the main shaft
- the second fixed frame drives the second casing to move in the direction close to the main shaft. move.
- the hinge can realize the inner-pulling motion of the casing when the folding device changes from the flattened state to the closed state, and the outer-pulling movement of the casing when the folding device changes from the closed state to the flattened state, so that the folding device can be expanded when unfolded.
- the deformation movement with the flexible screen as the neutral plane can be realized, thereby reducing the risk of pulling or squeezing the flexible screen, so that the flexible screen can maintain a constant length, so as to protect the flexible screen and improve the reliability of the flexible screen.
- Flexible screens and electronic devices have a long service life.
- the main shaft includes a main inner shaft and a main outer shaft fixed to the main inner shaft.
- the main inner shaft is located between the main outer shaft and the first fixing frame and the main outer shaft.
- the first transmission arm rotates around the first rotation center, the first rotation center is close to the main inner shaft and away from the main outer shaft, the first rotation center is close to the second fixed frame and away from the first fixed frame;
- the second The transmission arm rotates around a second rotation center, the second rotation center is close to the main inner shaft and away from the main outer shaft, and the second rotation center is close to the first fixing frame and away from the second fixing frame.
- both the main inner shaft and the main outer shaft are provided with a plurality of three-dimensional space structures. Through the design of these structures, after the main inner shaft and the main outer shaft are assembled, a plurality of movable spaces can be formed together, and the structural parts of the hinge can be installed movably. Multiple active spaces in the main shaft, so as to realize the connection with the main shaft.
- the split design of the main inner shaft and the main outer shaft is beneficial to reduce the manufacturing difficulty of the main shaft and improve the production accuracy and product yield of the main shaft.
- the hinge includes a first support plate and a second support plate, the first support plate is fixedly connected to the sliding end of the second transmission arm, and the second support plate is fixedly connected to the sliding end of the first transmission arm; the first shell When the body and the second shell are in the unfolded state, the first support plate is flush with the second support plate, the first support plate is erected between the first fixing frame and the main shaft, and the second supporting plate is erected between the second fixing frame and the main shaft between; when the first housing and the second housing are in the folded state, the first support plate is stacked on the side of the first fixing frame away from the second fixing frame, and the second supporting plate is stacked on the second fixing frame away from the first fixing frame side of the rack.
- the first support plate, the main shaft and the second support plate can jointly form a complete plane support for the bent portion of the flexible screen.
- the first supporting plate and the second supporting plate can be slid and retracted relative to the first casing and the second casing, respectively, so that the main shaft is exposed to form a connection to the flexible screen. Complete support for bends.
- the hinge can fully support the bending portion of the flexible screen, so that the flexible screen is not easily damaged by external force touch, which is beneficial to protect the flexible screen and improve the usage of users. experience.
- the main shaft has a supporting surface; when the first housing and the second housing are in a folded state, the supporting surface of the main shaft is exposed relative to the first supporting plate and the second supporting plate, and the supporting surface of the main shaft is arc-shaped.
- the main shaft can provide a complete semi-circular or nearly semi-circular supporting effect for the bending portion of the flexible screen, which is ideal for the bending portion of the flexible screen.
- the closed form remains consistent, so as to provide more optimal support for the closed form of the flexible screen.
- FIG. 1 is a schematic three-dimensional structural diagram of the folding electronic device of the present embodiment in an unfolded state
- FIG. 2 is a schematic three-dimensional structure diagram of a folding device in the folding electronic device in FIG. 1;
- FIG. 3 is a schematic three-dimensional structure diagram of a flexible screen in the folding electronic device in FIG. 1;
- Fig. 4 is a top-view structural schematic diagram of the flexible screen in Fig. 3;
- Fig. 5 is the exploded structure schematic diagram of the folding device in Fig. 2;
- FIG. 6 is a schematic three-dimensional structure diagram of the folding device in the present embodiment in a folded state
- Fig. 7 is the partial enlarged structure schematic diagram of A place in Fig. 5;
- Fig. 8 is the B-B sectional structure schematic diagram of the folding electronic device in Fig. 1;
- Fig. 9 is the partial enlarged structure schematic diagram of C place in Fig. 8.
- Fig. 10 is a partial enlarged structural schematic diagram at D in Fig. 8;
- FIG. 11 is a schematic diagram of the assembly structure of a flexible screen and a casing in a conventional folding electronic device
- FIG. 12 is a schematic three-dimensional structure diagram of the folding electronic device in FIG. 1 in an intermediate state
- FIG. 13 is a schematic three-dimensional structure diagram of the folding electronic device in FIG. 1 in a folded state
- Fig. 14 is the exploded structure schematic diagram of the hinge of the folding device in Fig. 5;
- FIG. 15 is a schematic exploded view of the partial structure of the hinge in FIG. 14;
- FIG. 16 is a schematic three-dimensional structure diagram of the folding device of the folding electronic device in FIG. 12 in an intermediate state
- Figure 17 is a schematic diagram of the exploded structure of the main shaft shown in Figure 15;
- FIG. 18 is a schematic structural diagram of the main outer shaft shown in FIG. 17 from another viewing angle
- Fig. 19 is the E-E sectional structure schematic diagram of the main shaft shown in Fig. 15;
- Fig. 20 is the F-F sectional structure schematic diagram of the main shaft shown in Fig. 15;
- Fig. 21 is the G-G sectional structure schematic diagram of the main shaft shown in Fig. 15;
- Figure 22 is a schematic view of the H-H cross-sectional structure of the main shaft shown in Figure 15;
- Fig. 23 is the I-I sectional structure schematic diagram of the main shaft shown in Fig. 15;
- Figure 24 is a schematic structural diagram of the end connecting assembly shown in Figure 15 from another perspective;
- Figure 25 is a schematic diagram of a partially exploded structure of the end connection assembly shown in Figure 24;
- Fig. 26 is a schematic diagram of the exploded structure of the first limiting member shown in Fig. 25;
- Fig. 27 is a partial structural schematic diagram of the hinge shown in Fig. 5;
- Figure 28 is a schematic structural diagram of the first support plate shown in Figure 27 from another viewing angle;
- Fig. 29 is a schematic diagram of a part of the structure of the folding device shown in Fig. 2;
- Figure 30 is a schematic diagram of a partial structure of the folding device shown in Figure 2;
- Figure 31 is a schematic cross-sectional structural diagram of the position corresponding to the first transmission arm of the folding device shown in Figure 2;
- Figure 32 is a schematic cross-sectional structural diagram of the position corresponding to the second transmission arm of the folding device shown in Figure 2;
- Figure 33 is a schematic cross-sectional structural diagram of the position corresponding to the first transmission arm of the folding device shown in Figure 16;
- Figure 34 is a schematic cross-sectional structural diagram of the position corresponding to the second transmission arm of the folding device shown in Figure 16;
- Figure 35 is a schematic cross-sectional structural diagram of the position corresponding to the first transmission arm of the folding device shown in Figure 6;
- Figure 36 is a schematic cross-sectional structural diagram of the position corresponding to the second transmission arm of the folding device shown in Figure 6;
- FIG. 37 is a schematic diagram of a stress-section position curve of the flexible screen of the present embodiment.
- FIG. 38 is a schematic diagram of a stress-cross-sectional position curve of a flexible screen of a conventional folding electronic device.
- the foldable electronic device includes but is not limited to a mobile phone, a tablet computer, an electronic reader, and the like.
- the folding electronic device 1000 may include a folding apparatus 100 and a flexible screen 200 , and the flexible screen 200 is fixed on the folding apparatus 100 .
- the flexible screen 200 is used to display images.
- the flexible screen 200 includes but is not limited to an organic light-emitting diode (organic light-emitting diode, OLED) display screen, an active-matrix organic light-emitting diode or an active-matrix organic light-emitting diode (active-matrix organic light-emitting diode, AMOLED) display screen, mini organic light-emitting diode (mini organic light-emitting diode) display, micro light-emitting diode (microorganic light-emitting diode) display, micro organic light-emitting diode (micro organic light-emitting diode) display, or quantum dot light-emitting diode ( quantum dot light emitting diodes, QLED) display.
- OLED organic light-emitting diode
- AMOLED active-matrix organic light-emitting diode
- mini organic light-emitting diode mini organic light-emit
- the flexible screen 200 can be divided into a first non-bending area 2001, a bending area 2002 and a second non-bending area 2003 arranged in sequence, and the bending area 2002 is connected to the first non-bending area. between the bending area 2001 and the second non-bending area 2003 .
- the flexible screen 200 may include a flexible cover plate 201 and a display panel 202 , and the flexible cover plate 201 and the display panel 202 are laminated and adhered.
- the flexible cover plate 201 is used to protect the display panel 202, and can also provide tactile sensation and force feedback to the user when the user touches.
- the display panel 202 is provided with a plurality of pixel units, which can realize image display.
- the flexible cover plate 201 includes parts distributed in the first non-bending area 2001 , the bending area 2002 and the second non-bending area 2003 , and the display panel 202 also includes parts distributed in the first non-bending area 2001 , the bending area 2002 and the Portion of the second non-bending region 2003 .
- the periphery of the flexible cover 201 may extend beyond the boundary of the display panel 202 , that is, each boundary of the display panel 202 may be retracted within the corresponding boundary of the flexible cover 201 .
- the area of the panel 202 is smaller than that of the flexible cover plate 201 .
- the center of the flexible cover plate 201 may be substantially coincident with the center of the display panel 202 (both the flexible cover plate 201 and the display panel 202 are approximately centrally symmetric structures), that is, each boundary of the flexible cover plate 201 into the display panel 202 is in line with the “each”.
- the distances of the boundaries corresponding to the "boundary" can be basically the same.
- the distance between the boundary of the flexible cover plate 201 and the corresponding boundary of the display panel 202 may be, for example, 0.6 mm-1.2 mm, such as 0.6 mm, 1.0 mm, and 1.2 mm.
- the perimeter of the flexible cover 201 extends beyond the boundary of the display panel 202 to facilitate bonding the perimeter of the flexible cover 201 to the housing in the folding device 100 (described below).
- a first notch 201 a and a second notch 201 b may be formed on opposite sides of the flexible cover plate 201 , respectively.
- the first notch 201a and the second notch 201b may be located approximately in the middle of the flexible cover plate 201, and the two may be distributed in mirror images.
- the shapes of the first notch 201a and the second notch 201b may be substantially the same, for example, both may be substantially trapezoidal.
- the first notch 201a and the second notch 201b are used to avoid end blocks in the hinge 20 of the folding device 100 (to be described later).
- the distance between the boundary of the flexible cover plate 201 and the corresponding boundary of the display panel 202 may be smaller (for example, smaller than 0.6 mm), and the distance between the boundary of the flexible cover plate 201 at other places and the corresponding boundary of the display panel 202 may be larger.
- the first notch 201a and/or the second notch 201b may not be provided.
- the folding device 100 may include a first case 10 , a hinge 20 and a second case 30 , and the hinge 20 connects the first case 10 and the second case 30 .
- the hinge 20 can generate a mechanical movement to rotate the first housing 10 relative to the second housing 30 , so as to close or unfold the first housing 10 and the second housing 30 .
- the first casing 10 and the second casing 30 can be completely folded to be parallel to each other (a little deviation is allowed). As shown in FIG.
- the included angle between them may be approximately 180° (a slight deviation is allowed, for example, the included angle is 165°, 177° or 185°).
- the first casing 10 and the second casing 30 may be collectively referred to as casings.
- the casing is in a folded state, that is, the foldable electronic device 1000 is in a folded state; when the first casing 10 and the second casing 30 are completely unfolded, the casing is in a folded state.
- the unfolded state that is, the foldable electronic device 1000 is in the unfolded state.
- the folding electronic device 1000 can be switched between the unfolded state and the folded state through the mechanism movement of the hinge 20 .
- the external structures of the first casing 10 and the second casing 30 may be basically the same or different, which are not limited in this embodiment. The following description will focus on the first housing 10 as an example.
- the edge of the first casing 10 has a frame 10a, and the frame 10 may be distributed in a partial area of the periphery of the first casing 10, for example, distributed on the edge of the first casing 10 that is not connected to the hinge 20, the frame 10a and the hinge 20 can be approximately enclosed in a rectangle.
- the frame 10a encloses an open area, the area forms a receiving groove 10b, the frame 10a protrudes from the bottom surface 10c of the receiving groove 10b, that is, the frame 10a can be used as a side wall of the receiving groove 10b.
- FIG. 7 is a partial enlarged schematic view of the position A in FIG. 5 .
- the frame 10a may have a stepped structure.
- the frame 10a may include a connected first step 10d and a second step 10e, the first step 10d is located on the inner periphery, and the second step 10e is located on the outer side.
- the first step 10d protrudes from the bottom surface 10c of the receiving groove 10b.
- the second step 10c protrudes from the step surface 10f of the first step 10d, that is, the step surface 10f of the first step 10d is lower than the step surface 10g of the second step 10e (in this embodiment, the step surface means that the step surface is substantially parallel to the surface of the bottom surface 10c of the receiving groove 10b).
- the extension track of the second step 10e may substantially coincide with the extension track of the first step 10d, and the extension lengths of the two may be substantially the same; or, the extension track of the second step 10e may only be part of the extension track of the first step 10d
- the segments overlap, and the extension length of the second step 10e may be smaller than the extension length of the first step 10d.
- the height of the first step 10d may be 0.4mm-1.0mm, such as 0.4mm, 0.8mm, 1.0mm.
- the width of the first step 10d may be 0.6mm-1.2mm, such as 0.6mm, 1.0mm, 1.2mm.
- the frame may not be a stepped structure, and the cross-section of the frame may be substantially rectangular. This frame is similar to the frame 10a of the present embodiment after the second step 10e is removed.
- the edge of the second casing 30 may also have a frame 30a, and the structure of the frame 30a may be the same as that of the frame 10a on the first casing 10, or the above-mentioned structure of the frame with a substantially rectangular cross-section. Basically the same, and the description will not be repeated here.
- the frame 30a on the second casing 30 may form a receiving groove 30b.
- the frame 10a and the frame 30a are separated by the hinge 20, and the frame 10a and the frame 30a are spaced from the hinge 20, so the receiving groove 10b and the receiving groove 30b are not formed closed slot.
- the frame 10a and the frame 30a in the unfolded state of the foldable electronic device 1000, the frame 10a and the frame 30a can be spliced and closed, so that the receiving groove 10b and the receiving groove 30b form a closed groove.
- FIG. 8 is a B-B cross-sectional schematic diagram of the folding electronic device 1000 in FIG. 1
- FIG. 9 is a partial enlarged structural schematic diagram of C in FIG. 8
- FIG. 10 is a partial enlarged structural schematic diagram of D in FIG. 8 .
- the part of the display panel 202 located in the first non-bending area 2001 is in the receiving groove 10b of the first casing 10
- the part of the display panel 202 located in the second non-bending area 2003 is in the second Inside the receiving groove 30b of the casing 30 .
- the portion of the display panel 202 located in the bending area 2002 may correspond to the hinge 20, and the portion of the display panel 202 located in the bending area 2002 may be substantially outside the receiving groove 10b and the receiving groove 30b (for example, most of the display panel 202 is located in the receiving groove 10b and the area between the receiving groove 30b).
- all areas of the display panel 202 can be located in the groove, that is, all areas of the display panel 202 can be located in the receiving grooves 10b and the receiving grooves within 30b.
- the display panel 202 and the side surface of the receiving groove 10b may be a space between the display panel 202 and the side surface of the receiving groove 10b (ie, the side surface 10h of the first step 10d) and the side surface 30h of the receiving groove 30b.
- the reserved size margin is used to ensure the accurate fit between the display panel 202 and the receiving slot.
- the interval may not be set, and at this time, the display panel 202 and the side surface of the receiving groove are matched with zero clearance (errors are allowed).
- the receiving groove accommodates a part of the display panel 202, and the other part of the display panel 202 is accommodated in the receiving groove out of the slot.
- the flexible cover plate 201 has an outer surface 201c and an inner surface 201d, the inner surface 201d faces the display panel 202, and the outer surface 201c faces away from the display panel 202.
- a part of the inner surface 201d of the edge of the flexible cover plate 201 can be fixedly connected with the stepped surface 10f of the first step 10d in the frame 10a and the stepped surface 30f of the first step 30d in the frame 30a, for example, by using waterproof glue.
- the flexible cover plate 201 , the first casing 10 and the second casing 30 jointly seal the display panel 202 .
- the second step 10e in the frame 10a and the second step 30e of the frame 30a surround the outer circumference of the flexible cover 201 and can provide protection to the flexible cover 201 .
- the entire inner surface 201d of the edge of the flexible cover plate 201 can be fixedly connected to the stepped surface 10f and the stepped surface 30f.
- the outer surface 201 c of the flexible cover 201 is not higher than the step surface 10 g of the second step 10 e on the first housing 10 , nor is it higher than the second step on the second housing 30
- the stepped surface 30g of 30e that is, the outer surface 201c of the flexible cover 201, may be flush with the stepped surface 10g and the stepped surface 30g, or sag relative to the stepped surface 10g and the stepped surface 30g.
- Fig. 11 shows the assembly design of the flexible screen 200' and the housing 10' in the conventional folding electronic device, wherein Fig. 11 adopts the same partial cross-sectional expression as Fig. 9 .
- the flexible cover 201 ′ of the flexible screen 200 ′ is bonded to the display panel 202 ′ in equal areas, the display panel 202 ′ and the housing 10 ′ are bonded and fixed, and the flexible cover 201 ′ Not connected to the housing 10'.
- the peripheral edge of the casing 10' may form a frame 10a' with a substantially 7-shaped cross section, and the frame 10a' presses the edge of the flexible cover 201'.
- the frame and housing are designed on the first casing 10 and/or the second casing 30 .
- the groove structure enables the edge of the flexible cover 201 to be fixedly connected with the frame, which can well block the entrance of external water vapor and extend the communication path between the display panel 202 and the outside world, making it difficult for water vapor to penetrate the display panel 202, thereby improving the flexible screen. 200 waterproof performance.
- the frame does not press the edge of the flexible cover plate 201, the effective display area of the flexible screen 200 is not affected, and the frame of the folding electronic device 1000 is narrower, and the product appearance experience is better.
- the first non-bending area 2001 of the flexible screen 200 is fixed to the first housing 10 of the folding device 100 , and the The two non-bending regions 2003 are fixed to the second casing 30 .
- the bending area 2002 may correspond to the hinge 20 , and the bending area 2002 is deformed during the process of closing or unfolding the first casing 10 and the second casing 30 .
- FIG. 1 when the first housing 10 and the second housing 30 are in the unfolded state, the flexible screen 200 is in the unfolded state; as shown in FIG.
- the flexible screen 200 when the first housing 10 and the second housing 30 are in the intermediate state , the flexible screen 200 is in an intermediate form between the unfolded form and the folded form; as shown in FIG. 13 , when the first casing 10 and the second casing 30 are in the folded state, the flexible screen 200 is in the folded form.
- the flexible screen 200 when the foldable electronic device 1000 is in the folded state, the flexible screen 200 is located outside the folding device 100, and the flexible screen 200 may be substantially U-shaped.
- Neutral layer means that during the bending process of the material, the outer layer is stretched and the inner layer is squeezed, and there is a transition layer on its cross section that is neither stretched nor compressed. The stress is almost zero and this transition layer is called the neutral layer of the material.
- the neutral layer of the flexible screen 200 can be arranged in the flexible cover plate 201 .
- the neutral layer in the flexible cover plate 201 means that the neutral layer may be located between the inner surface 201 d of the flexible cover plate 201 facing the display panel 202 and the outer surface 201 c of the flexible cover plate 201 facing away from the display panel 202 . It can be understood that, by arranging the neutral layer in the flexible cover plate 201, the deformation of the flexible cover plate 201 during the bending process is reduced, and permanent deformation is unlikely to occur. When the flexible screen 200 is in the unfolded state, the flatness of the flexible cover 201 can be guaranteed.
- the neutral layer can be schematically located on the outer surface 201c, which can ensure the flatness and light and shadow effect of the appearance surface of the product and improve the product quality .
- the structure of the hinge 20 capable of realizing the above-mentioned positional design of the neutral layer will be described in detail below.
- the hinge 20 may include a main shaft 1 , an end connection assembly 20 a , a first support plate 21 and a second support plate 22 .
- the main shaft 1 is located between the first casing 10 and the second casing 30 .
- a plurality of movable spaces connected to the outside of the main shaft 1 are formed inside the main shaft 1 , and the end connecting components 20 a are movably installed in these movable spaces to connect the main shaft 1 .
- the main shaft 1 extends in its axial direction, and the entire rotation axis of the hinge 20 is parallel to the axial direction of the main shaft 1 .
- the end connecting assembly 20 a is connected to the first casing 10 , the main shaft 1 and the second casing 30 .
- the number of the end connecting assemblies 20a can be two, and the two end connecting assemblies 20a are arranged at intervals in the axial direction of the main shaft 1, for example, can be connected to the top and bottom of the main shaft 1 respectively.
- the structures of the two end connecting assemblies 20a may be the same, so that the overall structure of the hinge 20 is relatively simple and the processing cost is low.
- the structures of the two end connecting assemblies 20a may also be different. In other embodiments, only one end connecting assembly 20 a may be provided, and the end connecting assembly 20 a is connected to the middle part of the main shaft 1 , the middle part of the first casing 10 and the middle part of the second casing 30 . It can be understood that, the structure of the hinge 20 may have various combinations and deformation modes, which are not strictly limited in this embodiment of the present application.
- the first support plate 21 and the second support plate 22 are located on the side of the two end connecting assemblies 20 a facing the flexible screen 200 .
- the first support plate 21 is located on the side of the main shaft 1 close to the first housing 10 , and the first support plate 21 connects the two end connecting assemblies 20 a.
- the second support plate 22 is located on the side of the main shaft 1 close to the second housing 30, and the second support plate 22 connects the two end connecting assemblies 20a.
- connection or position design of each component in the hinge 20 is described above, and the structure of the components in the hinge 20 will be described in detail below.
- the main shaft 1 has a support surface 11 .
- the supporting surface 11 of the main shaft 1 is partially exposed relative to the first supporting plate 21 and the second supporting plate 22 .
- the first support plate 21 , the main shaft 1 and the second support plate 22 can jointly support the bending portion 2002 of the flexible screen 200 , so that the flexible screen 200 is flatter and less likely to be damaged by external force touch, so as to improve the reliability of the flexible screen 200 sex. As shown in FIG.
- the supporting surface 11 of the main shaft 1 is partially exposed relative to the first supporting plate 21 and the second supporting plate 22 , and the supporting surface of the main shaft 1 is partially exposed.
- the exposed area of 11 is larger than the exposed area in the flattened state.
- the support surface 11 of the main shaft 1 together with the first support plate 21 and the second support plate 22 supports the bending portion 2002 of the flexible screen 200 .
- FIG. 6 when the first casing 10 and the second casing 30 are folded to the closed state, the supporting surface 11 of the main shaft 1 is completely exposed relative to the first supporting plate 21 and the second supporting plate 22 , and the supporting surface 11 of the main shaft 1 is completely exposed. 11 supports the bending portion 2002 of the flexible screen 200 .
- the support surface 11 of the main shaft 1 may be in an arc shape, which may include two situations: the support surface 11 is a standard arc surface (for example, a partial surface of a sphere or an ellipsoid), or the support surface 11 is approximately a standard arc shape noodle.
- the ideal closed form of the supporting surface 11 of the main shaft 1 and the bending portion 2002 of the flexible screen 200 are consistent, which is the folding of the flexible screen 200
- the bent portion 2002 provides a complete semicircle or nearly semicircle supporting effect, so as to provide a more sufficient and reliable support for the flexible screen 200 in the closed form.
- the support surface 11 of the main shaft 1 is a standard arc-shaped surface, and its central angle may be in the range of 150° to 180°, so as to better support the flexible screen 200 .
- the middle area of the support surface 11 of the main shaft 1 is flat, and the two side areas are arc-shaped. At this time, the supporting surface 11 is approximately arc-shaped as a whole, and can support the flexible screen 200 in a semicircle or an approximate semicircle in the closed state.
- the middle area of the support surface 11 can play a plane supporting role for the flexible screen 200 together with the first support plate 21 and the second support plate 22 in the flattened state.
- the support surface 11 of the main shaft 1 may also have other shapes.
- the supporting surface 11 of the main shaft 1 is set in a semi-elliptical shape, so as to reduce the width of the folding device 100 when it is in a closed state, thereby making it easier to carry and store.
- FIG. 17 is a schematic diagram of the exploded structure of the main shaft 1 shown in FIG. 15
- FIG. 18 is a schematic diagram of the structure of the main outer shaft 14 of the main shaft 1 shown in FIG. 17 from another angle.
- the main shaft 1 may include a main outer shaft 14 and a main inner shaft 15 .
- the main outer shaft 14 is fixed to one side of the main inner shaft 15 .
- the support surface 11 of the main shaft 1 is the surface of the main outer shaft 14 , and the support surface 11 faces away from the main inner shaft 15 .
- Both the main inner shaft 15 and the main outer shaft 14 are provided with a plurality of three-dimensional space structures. Through the design of these structures, after the main inner shaft 15 and the main outer shaft 14 are assembled, a plurality of movable spaces can be formed together.
- the end assembly 20a The structural parts in the main shaft 1 are movably installed in multiple movable spaces in the main shaft 1, so as to realize the connection with the main shaft 1.
- the separate design of the main inner shaft 15 and the main outer shaft 14 is beneficial to reduce the manufacturing difficulty of the main shaft 1 and improve the production accuracy and product yield of the main shaft 1 .
- the main inner shaft 15 includes a main inner shaft body 151 , a plurality of grooves 152 , a plurality of protrusions 153 and a plurality of fastening holes 155 .
- the main inner shaft body 151 is generally plate-shaped, a plurality of protrusions 153 are formed on the main inner shaft body 151, and a plurality of grooves 152 are formed on the main inner shaft body 151 and/or the plurality of protrusions 153 (in the embodiment of the present application) Among them, “A and/or B” includes three cases of “A", “B” and “A and B”.)
- the bumps 153 and the grooves 152 are combined with each other to form a plurality of three-dimensional space structures.
- a plurality of fastening holes 155 are formed in the main inner shaft body 151 .
- FIG. 16 schematically shows the numbers of part of the groove 152 , part of the protrusion 153 and part of the fastening hole 155 .
- the main outer shaft 14 includes a main outer shaft body 141 , a plurality of grooves 143 , a plurality of protrusions 144 , and two end blocks 146 (which may be referred to as the first end block 146 and the first end block 146 , respectively). Two end blocks 146 ) and a plurality of fastening holes 145 .
- the main outer shaft body 141 is substantially in the shape of an arc plate, and two end stoppers 146 are fixed on both ends of the main outer shaft body 141 .
- a plurality of protrusions 144 are formed on the main outer shaft body 141, and a plurality of grooves 143 are formed on the main outer shaft body 141 and/or the plurality of protrusions 144.
- the protrusions 144 and the grooves 143 are combined with each other to form a plurality of three-dimensional Spatial structure.
- a plurality of fastening holes 145 are formed in the plurality of protrusions 144 .
- FIG. 17 schematically shows the numbers of part of the groove 143 , part of the protrusion 144 and part of the fastening hole 145 .
- the fasteners include, but are not limited to, screws, bolts, rivets, pins, and the like.
- the plurality of three-dimensional space structures of the main outer shaft 14 and the plurality of three-dimensional space structures of the main inner shaft 15 together form a plurality of movable spaces of the main shaft 1 .
- some activity spaces of the plurality of activity spaces have the same structure, and some activity spaces have different structures.
- the movable spaces with different structures are used to cooperate with structural members with different structures, so that the connection structure of the main shaft 1 and the end assembly 20a is more flexible and diversified.
- the movable space with the same structure is used to cooperate with the structural member with the same structure, which is beneficial to reduce the design difficulty and cost of the main shaft 1 and the end connecting assembly 20a.
- one end block 146 is located in the first notch 201 a on the flexible cover plate 201 , and the other is located in the second notch 201 b on the flexible cover plate 201 . Both the first notch 201a and the second notch 201b can avoid the end block 146 .
- part of the protrusions 153 of the main inner shaft 15 has a limiting groove 1531 , which is used to limit the structural members installed in the corresponding movable spaces in the axial direction of the main shaft 1 . bit to improve the reliability of the connection structure.
- Part of the limiting groove 1531 is schematically marked in FIG. 17 .
- the groove wall of part of the groove 143 of the main outer shaft 14 is provided with a limit groove 1431 to limit the structural members installed in the corresponding movable space in the axial direction of the main shaft 1 , so that Improve the reliability of the connection structure.
- Part of the limiting groove 1431 is schematically indicated in FIG. 18 .
- a limit groove ( 1531 / 1431 ) is provided in the same movable space, which can limit the position of the structural member in the axial direction of the main shaft 1 .
- two limiting grooves (1531, 1431) may also be provided in the same movable space to increase the limiting stability.
- a part of the protrusions 144 of the main outer shaft 14 has a limiting function, and this part of the protrusions 144 is located in the movable space of the main shaft 1 , and is used for the structural parts in the end assembly 20 to be fixed.
- the limit is to prevent the structural member from accidentally detaching from the main shaft 1, so as to improve the connection reliability and movement reliability of the end connecting assembly 20a and the main shaft 1, and make the hinge 20 and the folding device 100 more reliable.
- the main shaft 1 may also be provided with bumps for limiting on the main inner shaft 15 .
- FIG. 19 is a schematic structural diagram of the main shaft 1 shown in FIG. 15 cut along the line E-E
- FIG. 20 is a schematic structural diagram of the main shaft 1 shown in FIG. 15 cut along the line F-F
- FIG. 15 is a schematic structural diagram of the main shaft 1 cut along the G-G line
- FIG. 22 is a structural schematic diagram of the main shaft 1 shown in FIG. 15 cut along the H-H line
- FIG. 23 is a structural schematic diagram of the main shaft 1 shown in FIG. 15 cut along the I-I line.
- the main shaft 1 of this embodiment forms a plurality of movable spaces, and the plurality of movable spaces are used to cooperate with different structural members of the end connecting assembly 20a.
- the main outer shaft 14 and the main inner shaft 15 together form an arc-shaped groove 131 and a communication hole 134 .
- One end of the arc groove 131 communicates with the external space on one side of the main shaft 1, the communication hole 134 connects the other end of the arc groove 131 to the external space on the other side of the main shaft 1, and the arc groove 131 and the communication hole 134 together form an active space.
- the movable space may further include two limiting grooves ( 1531 , 1431 ) communicating with the arc-shaped groove 131 , one of which is formed on the main outer shaft 14 and the other is formed on the main inner shaft 15 .
- the main outer shaft 14 may further include a position-limiting protrusion 144 , and the protrusion 144 extends into the arc-shaped groove 131 to limit the position of the structural member installed in the arc-shaped groove 131 .
- the main outer shaft 14 and the main inner shaft 15 are formed together to form an M-shaped groove 132 , two ends of the M-shaped groove 132 are respectively connected to the external spaces on both sides of the main shaft 1 , and the side walls of the M-shaped groove 132 form an M-shaped groove 132 .
- the two spaced apart recessed grooves 133, the M-shaped groove 132 and the two recessed grooves 133 together form an active space.
- the main outer shaft 14 and the main inner shaft 15 together form an arc-shaped groove 131 and a communication hole 134 .
- One end of the arc groove 131 communicates with the external space on one side of the main shaft 1, the communication hole 134 connects the other end of the arc groove 131 to the external space on the other side of the main shaft 1, and the arc groove 131 and the communication hole 134 together form an active space.
- the movable space may further include two limiting grooves ( 1531 , 1431 ) communicating with the arc-shaped groove 131 , one of which is formed on the main outer shaft 14 and the other is formed on the main inner shaft 15 .
- the main outer shaft 14 may further include a position-limiting protrusion 144 , and the protrusion 144 extends into the arc-shaped groove 131 to limit the position of the structural member installed in the arc-shaped groove 131 .
- the movable space shown in FIG. 19 and the movable space shown in FIG. 21 are arranged in pairs, and the positions of the arcuate groove 131 and the communication hole 134 in the movable space are opposite to the positions of the arcuate groove 131 and the communication hole 134 in the movable space.
- the main outer shaft 14 and the main inner shaft 15 together form an arc-shaped groove 131 .
- the movable space may further include two limiting grooves ( 1531 , 1431 ) communicating with the arc-shaped groove 131 , one of which is formed on the main outer shaft 14 and the other is formed on the main inner shaft 15 .
- the main outer shaft 14 may further include a position-limiting protrusion 144 , and the protrusion 144 extends into the arc-shaped groove 131 to limit the position of the structural member installed in the arc-shaped groove 131 .
- the main outer shaft 14 and the main inner shaft 15 together form an arc-shaped groove 131 .
- the movable space may further include two limiting grooves ( 1531 , 1431 ) communicating with the arc-shaped groove 131 , one of which is formed on the main outer shaft 14 and the other is formed on the main inner shaft 15 .
- the main outer shaft 14 may further include a position-limiting protrusion 144 , and the protrusion 144 extends into the arc-shaped groove 131 to limit the position of the structural member installed in the arc-shaped groove 131 .
- the activity space shown in FIG. 22 and the activity space shown in FIG. 23 are arranged in pairs, and their positions are opposite.
- the main outer shaft 14 and the main inner shaft 15 together form a plurality of arc-shaped grooves 131 .
- a plurality of arc-shaped grooves 131 are located in different movable spaces for matching with different structural members.
- main shaft 1 in the embodiment of the present application may also have other structures, which are not strictly limited in the present application.
- FIG. 24 is a schematic structural diagram of the end connecting assembly 20a shown in FIG. 15 from another angle.
- FIG. 25 is a partially exploded structural diagram of the end connecting assembly 20a shown in FIG. 24 .
- the end connecting assembly 20 a of the hinge 20 includes a first fixing frame 31 , a second fixing frame 32 , a first transmission arm 4 , a first rotating arm 5 , a second transmission arm 6 and a second rotating arm 7 .
- the first transmission arm 4 includes a sliding end 41 and a rotating end 42 .
- the rotating end 42 and the other end are rotatably connected to the first fixing frame 31 .
- the second transmission arm 6 includes a sliding end 61 and a rotating end 62 .
- the sliding end 61 of the second transmission arm 6 is slidably connected to the first fixing frame 31
- one end of the second rotating arm 7 is rotatably connected to the rotating ends 62 and 62 of the second transmission arm 6 .
- the other end is rotatably connected to the second fixing frame 32 .
- the first fixing frame 31 includes a first connecting block 311 .
- the first connecting block 311 may be in the shape of a claw, and the first connecting block 311 has a rotating hole 3111 .
- the first rotating arm 5 includes a claw-shaped first end 51 , and the first end 51 of the first rotating arm 5 has a rotating hole 511 .
- the first end 51 of the first rotating arm 5 is alternately connected to the first connecting block 311 , and passes through the rotating hole 3111 of the first connecting block 311 and the first end 51 of the first rotating arm 5 through a rotating shaft (not shown in the figure).
- the first end 51 of the first rotating arm 5 is connected to the first connecting block 311 in rotation, so as to realize the rotating connection between the first rotating arm 5 and the first fixing frame 31 .
- the first end 51 of the first rotating arm 5 and the first connecting block 311 are staggeredly connected, which can achieve mutual positioning in the axial direction of the main shaft 1 and improve the connection reliability of the hinge 20 .
- the rotating shaft in the embodiment of the present application may be a pin.
- the first connection block 311 includes a stop block 3112.
- the stop Block 3112 When the first housing 10 is unfolded relative to the second housing 30 to a flat state, the end of the first end 51 of the first rotating arm 5 abuts the stop Block 3112, so that the first rotating arm 5 stays at a predetermined position, so as to avoid pulling the flexible screen 200 due to overturning of the first casing 10 and the second casing 30, so as to protect the flexible screen 200.
- first connecting block 311 of the first fixing frame 31 and the first end 51 of the first rotating arm 5 may also have other structures, which can satisfy the rotational connection relationship between the two.
- the embodiment of the present application This is not strictly limited.
- the first rotating arm 5 further includes a claw-shaped second end 52 , the second end 52 of the first rotating arm 5 is disposed opposite to the first end 51 , and the first The second end 52 of a rotating arm 5 has a rotating hole 522 .
- the end of the rotating end 42 of the first transmission arm 4 is claw-shaped, and the end of the rotating end 42 of the first transmission arm 4 has a rotating hole 423 .
- the second end 52 of the first rotating arm 5 is staggeredly connected with the end of the rotating end 42 of the first transmission arm 4, and passes through the rotating hole of the second end 52 of the first rotating arm 5 through a rotating shaft (not shown in the figure).
- the second end 52 of the first rotating arm 5 and the end of the rotating end 42 of the first transmission arm 4 are alternately connected, which can limit the position of each other in the axial direction of the main shaft 1 and improve the connection reliability of the hinge 20 .
- the second end 52 of the first rotating arm 5 and the rotating end 42 of the first transmission arm 4 may also have other structures, which can satisfy the rotational connection relationship between the two. Not strictly limited.
- the rotating end 42 of the first transmission arm 4 is arc-shaped.
- the rotating end 42 of the first transmission arm 4 can be installed in one of the arc grooves 131 of the main shaft 1 , so that the first transmission arm 4 is rotatably connected to the main shaft 1 .
- the rotating end 42 of the first transmission arm 4 is installed in the arc-shaped groove 131 of the movable space of the main shaft 1 (see FIG. 13 ). At this time, the relative rotation center of the first transmission arm 4 and the main shaft 1 is close to the main shaft. shaft 15 and away from the main outer shaft 14 .
- the first transmission arm 4 and the main shaft 1 are connected by a virtual shaft, the rotational connection structure is simple, and the occupied space is small, which is beneficial to reduce the thickness of the hinge 20, making the folding device 100 and the folding electronic device 1000 easier to realize Thinner.
- the first transmission arm 4 and the main shaft 1 may also be connected by a real shaft, which is not strictly limited in the embodiments of the present application.
- the rotating end 42 of the first transmission arm 4 may further include a limiting protrusion 422 , and the limiting protrusion 422 is formed at an end position of the rotating end 42 .
- the limiting protrusions 422 are used to cooperate with the limiting protrusions 144 of the main shaft 1 (refer to FIG. 13 ) to prevent the first transmission arm 4 from being accidentally separated from the main shaft 1 .
- the rotating end 42 of the first transmission arm 4 may further include a limiting protrusion 421 , and the limiting protrusion 421 forms an inner position and/or an outer position of the rotating end 42 .
- the limit protrusion 421 is used to cooperate with the limit groove 1531 and/or the limit groove 1431 (refer to FIG. 13 ) of the main shaft 1 , so that the first transmission arm 4 and the main shaft 1 can be connected in the axial direction of the main shaft 1 . mutual limit.
- the second fixing frame 32 has a first sliding groove 322 .
- the side wall of the first sliding slot 322 may have a recessed guide space 3221 .
- the sliding end 41 of the first transmission arm 4 is mounted on the first sliding groove 322 to be slidably connected to the second fixing frame 32 .
- the sliding end 41 of the first transmission arm 4 includes a first flange 413 on the peripheral side.
- the first flange 413 is installed in the guide space 3221 of the first chute 322 .
- the sliding end 41 of the first transmission arm 4 can be guided to slide in the first sliding slot 322 through the cooperation between the guide space 3221 of the first sliding slot 322 and the first flange 413 of the first transmission arm 4 . direction, so that the relative sliding action between the first transmission arm 4 and the second fixed frame 32 is easier to realize and the control precision is higher.
- the hinge 20 may further include a first limiting member 81 .
- the first limiting member 81 is mounted on the sliding end 41 of the first transmission arm 4 , and the first limiting member 81 is engaged with the second fixing frame 32 .
- the first limiting member 81 is used to limit the relative positional relationship between the first transmission arm 4 and the second fixing frame 32 , so that the first transmission arm 4 and the second fixing frame 32 can be freed from a large external force
- the hinge 20 can stay at a preset angle, and the folding device 100 can maintain a flat or closed state, so as to improve the user experience of the folding device 100 and the folding electronic device 1000 .
- the second fixing frame 32 further includes a first concave area 323 and a second concave area 324 , and both the first concave area 323 and the second concave area 324 communicate with the first chute 322 .
- the first recessed area 323 is located on the side of the second recessed area 324 close to the first fixing frame 31 . Referring to FIG. 8 , that is, the first recessed area 323 is located between the main shaft 1 and the second recessed area 324 .
- the first limiting member 81 When the first casing 10 and the second casing 30 are relatively unfolded to a flat state, the first limiting member 81 is partially clamped into the first recessed area 323; when the first casing 10 and the second casing 30 are relatively folded to a closed state , the first limiting member 81 is partially snapped into the second recessed area 324 .
- FIG. 26 is a schematic diagram of the exploded structure of the first limiting member 81 shown in FIG. 25 .
- the first limiting member 81 includes a first bracket 811 and a first elastic member 812 .
- the first bracket 811 is a rigid structure and is not easily deformed under the action of external force.
- the first bracket 811 includes a control part 8111 and a resisting part 8112 .
- the resisting portion 8112 is used for resisting the external structural member to limit the structural member.
- the control part 8111 is used to control the position of the abutting part 8112 .
- the control part 8111 includes a base plate 8113 and a plurality of guide columns 8114, and the plurality of guide columns 8114 are fixed to one side of the base plate 8113 at intervals.
- the resisting portion 8112 is fixed on the other side of the base plate 8113 .
- the first elastic member 812 is an elastic structure, which is easily deformed under the action of external force. One end of the first elastic member 812 is mounted on the control portion 8111 of the first bracket 811 .
- the first elastic member 812 may include a plurality of springs 8121, and the plurality of springs 8121 are sleeved on the plurality of guide posts 8114 in a one-to-one correspondence.
- the sliding end 41 of the first transmission arm 4 has a first installation groove 414 , and the first limiting member 81 is installed in the first installation groove 414 .
- the other end of the first elastic member 812 ie, the end away from the control portion 8111 ) abuts against the groove wall of the first installation groove 414 , and the first elastic member 812 is in a compressed state.
- the resisting portion 8112 of the first bracket 811 partially protrudes from the first installation slot 414 and is engaged with the second fixing frame 32 .
- the first limiting member 81 can be positioned between the first recessed area 323 and the second recessed area 324 relative to the second fixing frame 32 . It can move smoothly between the first transmission arm 4 and the second fixed frame 32 to improve the limit reliability.
- the first limiting member 81 may further include a first buffer member 813 , and the first buffer member 813 is mounted on the abutting portion 8112 of the first bracket 811 .
- the first buffer member 813 can be made of a material with low rigidity (eg, rubber, etc.), so that when an external force is received, it can absorb the impact force through deformation and realize buffering.
- the second fixing frame 32 includes a second connecting block 321 .
- the second connection block 321 may be in the shape of a claw, and the second connection block 321 has a rotation hole 3211 .
- the second rotating arm 7 includes a claw-shaped first end 71 , and the first end 71 of the second rotating arm 7 has a rotating hole 711 .
- the first end 71 of the second rotating arm 7 is connected to the second connecting block 321 in a staggered manner, and passes through the rotating hole 3211 of the second connecting block 321 and the first end 71 of the second rotating arm 7 through a rotating shaft (not shown in the figure).
- the first end 71 of the second rotating arm 7 is rotatably connected to the second connecting block 321 , so as to realize the rotating connection between the second rotating arm 7 and the second fixing frame 32 .
- the first end 71 of the second rotating arm 7 and the second connecting block 321 are alternately connected, which can achieve mutual positioning in the axial direction of the main shaft 1 and improve the connection reliability of the hinge 20 .
- the second connection block 321 includes a stop block 3212.
- the stop Block 3212 When the first housing 10 is unfolded relative to the second housing 30 to a flat state, the end of the first end 71 of the second rotating arm 7 abuts the stop Block 3212, so that the second rotating arm 7 stays at a predetermined position, so as to avoid pulling the flexible screen 200 due to overturning of the first casing 10 and the second casing 30, so as to protect the flexible screen 200.
- the second connecting block 321 of the second fixing frame 32 and the first end 71 of the second rotating arm 7 may also have other structures, which can satisfy the rotating connection relationship between the two.
- the embodiment of the present application This is not strictly limited.
- the second rotating arm 7 further includes a claw-shaped second end 72 , and the second end 72 of the second rotating arm 7 is disposed opposite to the first end 51 .
- the second ends 72 of the two rotating arms 7 have rotating holes 721 .
- the end of the rotating end 62 of the second transmission arm 6 is claw-shaped, and the end of the rotating end 62 of the second transmission arm 6 has a rotating hole 623 .
- the second end 72 of the second rotating arm 7 is connected to the end of the rotating end 62 of the second transmission arm 6 in a staggered manner, passing through the rotating hole of the second end 72 of the second rotating arm 7 through a rotating shaft (not shown in the figure).
- the second end 72 of the second rotating arm 7 and the end of the rotating end 62 of the second transmission arm 6 are alternately connected, which can limit the position of each other in the axial direction of the main shaft 1 and improve the connection reliability of the hinge 20 .
- the second end 72 of the second rotating arm 7 and the rotating end 62 of the second transmission arm 6 may also have other structures, which can satisfy the rotational connection relationship between the two. Not strictly limited.
- the rotating end 62 of the second transmission arm 6 is arc-shaped.
- the rotating end 62 of the second transmission arm 6 can be installed in one of the arc grooves 131 of the main shaft 1 , so that the second transmission arm 6 is rotatably connected to the main shaft 1 .
- the rotating end 62 of the second transmission arm 6 is installed in the arc-shaped groove 131 of the movable space of the main shaft 1 (see FIG. 21 ). At this time, the rotation center of the relative rotation of the second transmission arm 6 and the main shaft 1 is close to the main shaft shaft 15 and away from the main outer shaft 14 .
- the second transmission arm 6 and the main shaft 1 are connected by a virtual axis, the rotational connection structure is simple, and the space is small, which is beneficial to reduce the thickness of the hinge 20, making the folding device 100 and the folding electronic device 1000 easier to implement Thinner.
- the second transmission arm 6 and the main shaft 1 may also be connected by a real shaft, which is not strictly limited in the embodiments of the present application.
- the rotating end 62 of the second transmission arm 6 may further include a limiting protrusion 622 , and the limiting protrusion 622 is formed at an end position of the rotating end 62 .
- the limiting protrusions 622 are used to cooperate with the limiting protrusions 144 (refer to FIG. 21 ) of the main shaft 1 to prevent the second transmission arm 6 from accidentally detaching from the main shaft 1 .
- the rotating end 62 of the second transmission arm 6 may further include a limiting protrusion 621 , and the limiting protrusion 621 forms an inner position and/or an outer position of the rotating end 62 .
- the limit protrusion 421 is used to cooperate with the limit groove 1431 and/or the limit groove 1531 (refer to FIG. 21 ) of the main shaft 1 , so that the second transmission arm 6 and the main shaft 1 can be connected in the axial direction of the main shaft 1 . mutual limit.
- the first fixing frame 31 has a second sliding groove 312 .
- the side wall of the second chute 312 may have a recessed guide space 3121 .
- the sliding end 61 of the second transmission arm 6 is mounted on the second sliding slot 312 to be slidably connected to the first fixing frame 31 .
- the sliding end 61 of the second transmission arm 6 includes a second flange 613 on the peripheral side. The second flange 613 is installed in the guide space 3121 of the second chute 312 .
- the sliding end 61 of the second transmission arm 6 can be guided to slide in the second sliding slot 312 through the cooperation between the guide space 3121 of the second sliding slot 312 and the second flange 613 of the second transmission arm 6 . direction, so that the relative sliding action between the second transmission arm 6 and the first fixing frame 31 is easier to realize, and the control precision is higher.
- the hinge 20 may further include a second limiting member 82 .
- the second limiting member 82 is mounted on the sliding end 61 of the second transmission arm 6 , and the second limiting member 82 is engaged with the first fixing frame 31 .
- the second limiting member 82 is used to limit the relative positional relationship between the second transmission arm 6 and the first fixing frame 31 , so that the second transmission arm 6 and the first fixing frame 31 can be protected from a large external force.
- the hinge 20 can stay at a preset angle, and the folding device 100 can maintain a flat or closed state, so as to improve the user experience of the folding device 100 and the folding electronic device 1000 .
- the first fixing frame 31 further includes a third concave area 313 and a fourth concave area 314 , and both the third concave area 313 and the fourth concave area 314 communicate with the second chute 312 .
- the third recessed area 313 is located on the side of the fourth recessed area 314 close to the second fixing frame 32 . Referring to FIG. 8 , that is, the third recessed area 313 is located between the main shaft 1 and the fourth recessed area 314 .
- the second limiting member 82 When the first casing 10 and the second casing 30 are relatively unfolded to a flat state, the second limiting member 82 is partially clamped into the third recessed area 313; when the first casing 10 and the second casing 30 are relatively folded to a closed state , the second limiting member 82 is partially snapped into the fourth recessed area 314 .
- the structure of the second limiting member 82 is the same as that of the first limiting member 81 , so as to simplify the material types of the hinge 20 and reduce the design difficulty and cost of the hinge 20 .
- the specific structure of the second limiting member 82 is not repeated in this embodiment of the present application. In some other embodiments, the structure of the second limiting member 82 may also be different from that of the first limiting member 81 .
- the hinge 20 may further include a first synchronous swing arm 91 and a second synchronous swing arm 92 .
- the first synchronous swing arm 91 includes a rotating end 911 and a movable end 912 .
- the rotating end 911 of the first synchronous swing arm 91 is rotatably connected to the main shaft 1
- the movable end 912 of the first synchronous swing arm 91 is movably connected to the first fixed frame 31 .
- the movable end 912 of the first synchronous swing arm 91 slides and rotates relative to the first fixing frame 31 .
- the rotating end 911 of the first synchronous swing arm 91 includes a first rotating body 9111 , a first rotating shaft 9112 and a first gear 9113 .
- the first rotating body 9111 includes a front surface, a back surface, and a peripheral side surface connected between the front surface and the back surface.
- the first gear 9113 is fixed to the peripheral side surface of the first rotating body 9111 .
- the first rotating shaft 9112 is fixed on the front and/or the back of the first rotating body 9111 .
- the first rotating shaft 9112 includes two parts, which are respectively fixed on the front and the back of the first rotating body 9111, so that when the first synchronous swing arm 91 is rotated and connected to other structures through the first rotating shaft 9112, it has better balance. stability and stability.
- the first rotating shaft 9112 includes a part, and the first rotating shaft 9112 is fixed on the front or back of the first rotating body 9111 to reduce the installation space requirement of the first synchronizing swing arm 91 .
- the first rotating shaft 9112 is used to rotate and connect the main shaft 1 .
- the first synchronous swing arm 91 can be installed in the movable space of the main shaft 1 (as shown in FIG. 14 ), and the first rotating shaft 9112 is installed at the recessed groove 133 of the M-shaped groove 132 .
- the rotational connection between the rotating end 911 of the first synchronous swing arm 91 and the main shaft 1 is realized through a real axis.
- the rotational connection between the rotating end 911 of the first synchronous swing arm 91 and the main shaft 1 may also be realized through a virtual axis, which is not strictly limited in this embodiment of the present application.
- the movable end 912 of the first synchronous swing arm 91 includes a third rotating body 9121 and a third rotating shaft 9122 , and the third rotating shaft 9122 is fixed to the front and/or back of the third rotating body 9121 .
- the first fixing frame 31 also has a third chute 316 , and the groove wall of the third chute 316 has a concave guide space 3161 .
- the guiding direction of the guiding space 3161 of the third sliding groove 316 is the same as the guiding direction of the guiding space 3121 of the second sliding groove 312 .
- the movable end 912 of the first synchronous swing arm 91 can be installed in the third chute 316 of the first fixing frame 31 , and the third rotating shaft 9122 can be installed in the guide space 3161 of the third chute 316 .
- the movable end 912 of the first synchronous swing arm 91 can slide and rotate relative to the first fixed frame 31 .
- the movable end 912 of the first synchronous swing arm 91 can be guided to the third chute 316 .
- the sliding direction makes the relative movement between the first synchronous swing arm 91 and the first fixed frame 31 easier to realize and has higher control precision.
- the second synchronous swing arm 92 includes a rotating end 921 and a movable end 922 , the rotating end 921 of the second synchronous swing arm 92 is rotatably connected to the main shaft 1 , and the second synchronous swing arm 92
- the rotating end 921 of the first synchronous swing arm 91 engages with the rotating end 911 of the first synchronous swing arm 91
- the movable end 922 of the second synchronous swing arm 92 is movably connected to the second fixed frame 32
- the first housing 10 and the second housing 30 are folded or unfolded relative to each other.
- the movable end 922 of the second synchronous swing arm 92 slides and rotates relative to the second fixing frame 32 .
- the first synchronous swing arm 91 and the second synchronous swing arm 92 can control the rotation angle of the first fixed frame 31 and the second fixed frame 32 relative to the main shaft 1 to be consistent,
- the rotation of the first fixing frame 31 and the second fixing frame 32 is synchronized and consistent, and the folding and unfolding movements of the hinge 20 are symmetrical, which is beneficial to improve the user's experience.
- the first synchronous swing arm 91 is rotatably connected to the main shaft 1, slidably connected, and rotatably connected to the first fixed frame 31, that is, a link-slider structure is formed.
- the second synchronous swing arm 92 is rotatably connected to the main shaft 1 , is slidably connected, and is rotatably connected to the second fixed frame 32 , that is, a link-slider structure is formed.
- the two intermeshing link-slider structures can well control the synchronization and consistency of the rotational movements of the first housing 10 and the second housing 30 .
- the rotating end 921 of the second synchronous swing arm 92 includes a second rotating body 9211 , a second rotating shaft 9212 and a second gear 9213 , and the second rotating shaft 9212 is fixed to the second rotating shaft 9212 .
- the second gear 9213 is fixed to the peripheral side surface of the second rotating main body 9211 .
- the rotating end 921 of the second synchronous swing arm 92 can be installed in the movable space of the main shaft 1 (as shown in FIG. 20 ).
- the second shaft 9212 is rotatably connected to the main shaft 1 , and the second gear 9213 meshes with the first gear 9113 .
- the rotating end 911 of the first synchronous swing arm 91 and the rotating end 921 of the second synchronous swing arm 92 are directly meshed with the second gear 9213 through the first gear 9113, the first synchronous swing arm 91 and the second
- the synchronizing assembly formed by the two synchronizing swing arms 92 is simple in structure, easy to control in the movement process, and high in accuracy.
- the movable end 922 of the second synchronous swing arm 92 includes a fourth rotating body 9222 and a fourth rotating shaft 9221 , and the fourth rotating shaft 9221 is fixed to the front and/or back of the fourth rotating body 9222 .
- the second fixing frame 32 also has a fourth sliding groove 326 , and the groove wall of the fourth sliding groove 326 has a concave guide space 3261 .
- the guiding direction of the guiding space 3261 of the fourth sliding groove 326 is the same as the guiding direction of the guiding space 3221 of the first sliding groove 322 .
- the second synchronous swing arm 92 is installed in the fourth sliding slot 326
- the fourth rotating shaft 9221 is installed in the guiding space 3261 of the fourth sliding slot 326 .
- the movable end 922 of the second synchronous swing arm 92 can be guided in the sliding direction of the fourth chute 326, so that the second synchronous swing arm 92 can be guided in the sliding direction of the fourth chute 326.
- the relative movement between the synchronous swing arm 92 and the second fixing frame 32 is easier to realize and has higher control precision.
- the structure of the second synchronous swing arm 92 may be substantially the same as that of the first synchronous swing arm 91 , so as to simplify the material types of the hinge 20 and reduce the design difficulty and cost of the hinge 20 .
- the structural difference between the second synchronous swing arm 92 and the first synchronous swing arm 91 is that the arrangement angles of the first gear 9113 and the second gear 9213 are different to facilitate meshing with each other.
- the hinge 20 may further include a first adapter 93 and a second adapter 94 .
- the first adapter 93 is slidably mounted on the first fixing frame 31
- the movable end 912 of the first synchronizing swing arm 91 is rotatably connected to the first adapter 93
- the second adapter 94 is slidably mounted on the second fixing frame 32 .
- the movable ends 922 of the two synchronous swing arms 92 are rotatably connected to the second adapter 94 .
- the structure of the second adapter 94 can be the same as that of the first adapter 93 , so as to simplify the material types of the hinge 20 and reduce the design difficulty and cost of the hinge 20 .
- the first fixing frame 31 is an integrally formed structural member, including a first connecting block 311 , a second chute 312 and a third chute 316 .
- the first fixing frame 31 may include a plurality of structural members, and the first connecting block 311 , the second sliding groove 312 and the third sliding groove 316 are formed on different structural members, which is not made in this application. Strictly limited.
- the second fixing frame 32 is an integrally formed structural member, including a second connecting block 321 , a first sliding groove 322 and a fourth sliding groove 326 .
- the second fixing frame 32 may include a plurality of structural members, and the second connecting block 321 , the first sliding groove 322 and the fourth sliding groove 326 are formed on different structural members, which is not made in this application. Strictly limited.
- the first fixing frame 31 has a plurality of fastening holes 317
- the hinge 20 can fix the first fixing frame 31 to the first housing 10 through a plurality of fasteners.
- the second fixing frame 32 has a plurality of fastening holes 327 , and the hinge 20 can fix the second fixing frame 32 to the second housing 30 through a plurality of fasteners.
- the first transmission arm 4 rotates around the first rotation center 4C, that is, the first transmission arm 4 and the main shaft 1 rotate around the first rotation center 4C.
- the second transmission arm 6 rotates around the second rotation center 6C, that is, the second transmission arm 6 and the main shaft 1 rotate around the second rotation center 6C.
- FIG. 27 is a partial structural diagram of the hinge 20 shown in FIG. 5 .
- the first support plate 21 is fixedly connected to the sliding end 61 of the second transmission arm 6
- the second support plate 22 is fixedly connected to the sliding end 41 of the first transmission arm 4 .
- the first support plate 21 and the second transmission arm 6 are assembled into one component, and the second support plate 22 and the first transmission arm 4 are assembled into a single component, so the second transmission arm 6 can directly control the first support
- the movement track of the plate 21, the first transmission arm 4 can directly control the movement track of the second support plate 22, so that the control precision of the movement process of the first support plate 21 and the second support plate 22 is high and the hysteresis is small, so as to accurately
- the expansion and contraction are realized, so as to meet the support requirements of the flexible screen 200 and the self-shielding requirements of the hinge 20 .
- the first support plate 21 is fixed to the second transmission arms 6 of the two end connection assemblies 20a; the second support plate 22 is fixed to the first transmission arms 4 of the two end connection assemblies 20a.
- the two end connecting assemblies 20a can jointly drive the first support plate 21 and the second support plate 22 to move, so as to reduce the difficulty of motion control and improve the accuracy of motion control.
- the sliding ends of the plurality of transmission arms can be locked and fixed with the support plate by means of fasteners.
- Fasteners include, but are not limited to, screws, bolts, rivets, pins, and the like.
- a concave-convex matching structure may also be arranged between the sliding ends of the plurality of transmission arms and the support plate, so as to improve assembly precision and reliability.
- FIG. 28 is a schematic structural diagram of the first support plate 21 shown in FIG. 27 from another viewing angle.
- the first support plate 21 includes a plate body 211 and a plurality of first protrusions 212 fixed to the plate body 211 , and the plurality of first protrusions 212 are spaced apart from each other.
- the plurality of first protrusions 212 are used for clamping the sliding ends 61 of the second transmission arms 6 of the two end connecting assemblies 20a respectively.
- the first support plate 21 may be an integrally formed structural member.
- the first support plate 21 may further include a sliding member 214 fixed to the plate body 211 , and the sliding member 214 is used for sliding connection with the first fixing frame 31 of the end connecting assembly 20 a, so that the first supporting plate 21 It can better slide relative to the first fixing frame 31 with the second transmission arm 6 , so as to improve the mechanism reliability of the hinge 20 .
- the number of the first sliding members 214 is two, and the two first sliding members 214 are slidably connected to the two first fixing frames 31 respectively.
- the structure of the second support plate 22 can be the same as that of the first support plate 21 , so as to simplify the material types of the hinge 20 and reduce the design difficulty and cost of the hinge 20 .
- the specific structure of the second support plate 22 is not repeated in this embodiment of the present application.
- FIG. 29 is a schematic diagram of a partial structure of the folding device 100 shown in FIG. 2 .
- the structure shown in FIG. 29 includes the first housing 10 and the first fixing frame 31 of the two end connecting assemblies 20a.
- a side of the first housing 10 close to the hinge 20 has a first fixing groove 102
- the first housing 10 includes a first positioning plate 103 located in the first fixing groove 102
- the first positioning plate 103 is connected to the first positioning plate 103 .
- the groove bottom walls of the fixing grooves 102 are arranged at intervals
- the first fixing frame 31 is located between the first positioning plate 103 and the groove bottom wall of the first fixing groove 102 , and is fixedly connected to the first positioning plate 103 .
- the first fixing frame 31 and the first housing 10 are fixed to each other, the first housing 10 and the first fixing frame 31 move synchronously, and the hinge 20 moves the first fixing frame 31 during the movement process.
- the constraint on the trajectory also forms a constraint on the motion trajectory of the first casing 10 .
- the first positioning plate 103 sinks relative to the bottom surface 10c of the receiving groove 10b to form the first receiving groove 104 .
- the first accommodating groove 104 can provide accommodation and movement space for the first supporting plate 21 , and the position of the first accommodating groove 104 is set so that the supporting surface of the first supporting plate 21 installed in the first accommodating groove 104 can be connected with the first housing 10 .
- the bottom surface 10c of the receiving groove 10b is flush, so that the first support plate 21 can better support the flexible screen 200 .
- the depth of the first accommodating groove 104 is shallow, and the non-display side of the flexible screen 200 is provided with a supporting backboard with high hardness, so when the first supporting plate 21 partially extends out of the first accommodating groove 104, the flexible The part of the screen 200 facing the first accommodating slot 104 will not be significantly deformed under the user's pressing, which is also beneficial to ensure the reliability of the flexible screen 200 .
- the first positioning plate 103 may include a plurality of structures arranged at intervals, or may be a continuous structure, which is not strictly limited in this application.
- the first fixing frame 31 can be locked with the first positioning plate 103 by fasteners, and the fasteners can be, but not limited to, screws, bolts, rivets and other structures.
- other connection structures may also be formed between the first fixing frame 31 and the first housing 10 , which is not strictly limited in this application.
- FIG. 30 is a schematic diagram of a partial structure of the folding device 100 shown in FIG. 2 .
- the structure shown in FIG. 30 includes a second housing 30 and a second fixing frame 32 of the two end connecting assemblies 20a.
- a side of the second housing 30 close to the hinge 20 has a second fixing slot 302
- the second housing 30 includes a second positioning plate 303 located in the second fixing slot 302
- the second positioning plate 303 is connected to the second fixing slot 302 .
- the groove bottom walls of the fixing grooves 302 are arranged at intervals
- the second fixing frame 32 is located between the second positioning plate 303 and the groove bottom wall of the second fixing groove 302 , and is fixedly connected to the second positioning plate 303 .
- the second casing 30 moves with the second fixing frame 32 , and the hinge 20 can be controlled by controlling the movement trajectory of the second fixing frame 32 The movement trajectory of the second casing 30 .
- the second positioning plate 303 sinks relative to the bottom surface 30c of the receiving groove 30b to form the second receiving groove 304 .
- the second accommodating groove 304 can provide accommodation and movement space for the second supporting plate 22 , and the position of the second accommodating groove 304 is set so that the supporting surface of the second supporting plate 22 installed in the second accommodating groove 304 can align with the second housing 30 .
- the bottom surface 30c of the receiving groove 30b is flush, so that the second support plate 22 can better support the flexible screen 200 .
- the depth of the second accommodating groove 304 is shallow, and the non-display side of the flexible screen 200 is provided with a supporting backboard with high hardness, so when the second supporting plate 22 partially extends out of the second accommodating groove 304, the flexible The part of the screen 200 facing the second accommodating slot 304 will not be significantly deformed under the user's pressure, which is also beneficial to ensure the reliability of the flexible screen 200 .
- the second positioning plate 303 may include a plurality of structures arranged at intervals, or may be a continuous structure, which is not strictly limited in this application.
- the second fixing frame 32 and the fourth fixing frame 34 can be locked with the second positioning plate 303 by fasteners, and the fasteners can be, but not limited to, screws, bolts, rivets and other structures.
- other connection structures may also be formed between the second fixing frame 32 and the second housing 30 , which is not strictly limited in this application.
- the structure of the folding device 100 will be described below with reference to a plurality of internal structure diagrams when the folding device 100 is in the flattened state, the intermediate state, and the closed state, respectively.
- FIG. 31 is a schematic cross-sectional structural diagram of the position corresponding to the first transmission arm 4 of the folding device 100 shown in FIG. 2
- FIG. 32 is a corresponding second transmission arm of the folding device 100 shown in FIG. 2
- 6 is a schematic cross-sectional view of the structure at the position
- FIG. 33 is a cross-sectional view of the position corresponding to the first transmission arm 4 of the folding device 100 shown in FIG. 16
- FIG. 34 is the corresponding second transmission arm 6 of the folding device 100 shown in FIG. 16 is located.
- Figure 35 is a schematic cross-sectional structure diagram of the position corresponding to the first transmission arm 4 of the folding device 100 shown in Figure 6, and Figure 36 is the position corresponding to the second transmission arm 6 of the folding device 100 shown in Figure 6.
- Schematic diagram of the cross-sectional structure. 31 to 36 illustrate changes in the positions of the first transmission arm 4 and the second transmission arm 6 during the transition of the folding device 100 from the flattened state to the closed state.
- the first transmission arm 4 is substantially parallel to the main shaft 1 , and the rotating end 42 of the first transmission arm 4 is in a rotating position relative to the main shaft 1 .
- the sliding end 41 of the first transmission arm 4 is in the sliding out position relative to the second fixing frame 32, the first transmission arm 4 is far away from the second fixing frame 32 and the second housing 30, the second fixing frame 32 and the second housing
- the body 20 is far away from the main shaft 1; the first rotating arm 5 is linked with the first transmission arm 4, the first rotating arm 5 is in an extended position relative to the main shaft 1, and the first rotating arm 5 pushes the first fixing frame 31 and the first housing 10 away from spindle 1.
- the second transmission arm 6 is substantially parallel to the main shaft 1 , and the rotating end 62 of the second transmission arm 6 is in a rotating position relative to the main shaft 1 .
- the sliding end 61 of the second transmission arm 6 is in the sliding out position relative to the first fixing frame 31 , the second transmission arm 6 is far away from the first fixing frame 31 and the first housing 10 , the first fixing frame 31 and the first housing
- the body 10 is far away from the main shaft 1;
- the second rotating arm 7 is linked with the second transmission arm 6, the second rotating arm 7 is in an extended position relative to the main shaft 1, and the second rotating arm 7 pushes the second fixing frame 32 and the second housing 30 away from spindle 1.
- the first transmission arm 4 and the second transmission arm 6 are in the rotating position relative to the main shaft 1, and the first rotating arm 5 and the second rotating arm
- the arm 7 is in an extended position relative to the main shaft 1 and pushes the first housing 10 and the second housing 30 away from the main shaft 1 .
- the first transmission arm 4 is inclined relative to the main shaft 1 , and the rotating end 42 of the first transmission arm 4 is partially rotated out/part of the main shaft 1
- the sliding end 41 of the first transmission arm 4 is in the partially sliding in/out position relative to the second fixing frame 32
- the first transmission arm 4 is gradually approaching the second fixing frame 32 and the second housing 30
- the second The fixed frame 32 and the second housing 30 are gradually approaching the main shaft 1
- the first rotating arm 5 is linked with the first transmission arm 4, the first rotating arm 5 is in a partially extending/partially extending position relative to the main shaft 1, and the first rotating arm 5
- the first fixing frame 31 and the first housing 10 are driven to gradually approach the main shaft 1 .
- the second transmission arm 6 is inclined relative to the main shaft 1 , and the rotating end 62 of the second transmission arm 6 is partially rotated out/part of the main shaft 1
- the sliding end 61 of the second transmission arm 6 is in a partially sliding-in/partly sliding-out position relative to the first fixing frame 31
- the second transmission arm 6 is gradually approaching the first fixing frame 31 and the first housing 10
- the first The fixed frame 31 and the first housing 10 are gradually approaching the main shaft 1
- the second rotating arm 7 is linked with the second transmission arm 6, and the second rotating arm 7 is in a partially extending/partially extending position relative to the main shaft 1, and the second rotating arm 7
- the second fixing frame 32 and the second housing 30 are driven to gradually approach the main shaft 1 .
- the first transmission arm 4 and the second transmission arm 6 are in the partially rotated out/partly rotated in position relative to the main shaft 1, and the first rotating arm 5 and the The two rotating arms 7 are in a partially extending position relative to the main shaft 1 , and drive the first casing 10 and the second casing 30 to gradually approach the main shaft 1 .
- the first transmission arm 4 is substantially perpendicular to the main shaft 1 , and the rotating end 42 of the first transmission arm 4 is rotated out relative to the main shaft 1 position, the sliding end 41 of the first transmission arm 4 is in the sliding position relative to the second fixing frame 32, the first transmission arm 4 is close to the second fixing frame 32 and the second housing 30, the second fixing frame 32 and the second housing 30 is close to the main shaft 1 ; the first rotating arm 5 is in a protruding position relative to the main shaft 1 , and the first rotating arm 5 pulls the first fixing frame 31 and the first housing 10 closer to the main shaft 1 .
- the second transmission arm 6 is substantially perpendicular to the main shaft 1 , and the rotating end 62 of the second transmission arm 6 is rotated out relative to the main shaft 1 .
- the sliding end 61 of the second transmission arm 6 is in the sliding position relative to the first fixing frame 31
- the second transmission arm 6 is close to the first fixing frame 31 and the first housing 10
- the first fixing frame 31 and the first housing 10 is close to the main shaft 1
- the second rotating arm 7 is in a protruding position relative to the main shaft 1
- the second rotating arm 7 pulls the second fixing frame 32 and the second housing 30 closer to the main shaft 1 .
- the first transmission arm 4 and the second transmission arm 6 are in the rotated out position relative to the main shaft 1, and the first rotating arm 5 and the second rotating arm
- the arm 7 is in an extended position relative to the main shaft 1 and draws the first housing 10 and the second housing 30 towards the main shaft 1 .
- the rotating end 62 of the second transmission arm 6 is rotatably connected to the main shaft 1
- the sliding end 61 is slidably connected to the first fixing frame 31
- the first fixing frame 31 is fixed to the first casing 10 , so the first casing 10 is During the relative rotation with the second casing 30 , the first casing 10 drives the first fixing frame 31 to rotate relative to the main shaft 1
- the second transmission arm 6 rotates relative to the main shaft 1 along with the first fixing frame 31
- the second transmission arm 6 rotates relative to the main shaft 1 .
- the second housing 30 drives the second fixing frame 32 to rotate relative to the main shaft 1 , the first transmission arm 4 rotates relative to the main shaft 1 along with the second fixing frame 32 , and the first transmission arm 4 is fixed relative to the second
- the frame 32 slides, so the folding device 100 can be freely switched between the flattened state and the closed state, and the first housing 10 and the second housing 30 can be relatively unfolded to the flattened state, so that the flexible screen 200 is in a flattened state,
- the first casing 10 and the second casing 30 can also be folded to a closed state relative to each other, so that the folded electronic device 1000 can be easily stored and carried.
- first casing 10 and the second casing 30 are relatively folded to the closed state through the hinge 20, they can be completely folded, and there is no gap or a small gap between the two, so that the appearance of the folding device 100 is relatively complete, and the appearance is self-contained.
- the appearance of the folding electronic device 1000 to which the folding device 100 is applied is relatively complete, which is beneficial to improve the reliability of the product and the user experience.
- the first transmission arm 4 rotates around the first rotation center 4C.
- the first rotation center 4C is the center of the arc groove 131 of the main shaft 1 corresponding to the rotation end 42 of the first transmission arm 4 .
- the first rotation center 4C where the first transmission arm 4 rotates relative to the main shaft 1 is close to the main inner shaft 15 and away from the main outer shaft 14 , close to the second fixing frame 32 and away from the first fixing frame 31 .
- the second transmission arm 6 rotates around the second rotation center 6C.
- the second rotation center 6C is the center of the arc groove 131 of the main shaft 1 corresponding to the rotation end 62 of the second transmission arm 6 .
- the second rotation center 6C where the second transmission arm 6 rotates relative to the main shaft 1 is close to the main inner shaft 15 and away from the main outer shaft 14 , close to the first fixing frame 31 and away from the second fixing frame 32 .
- the hinge 20 by setting the positions of the first rotation center 4C and the second rotation center 6C, it is easier for the hinge 20 to realize the inward pulling motion of the casing and the folding device during the process of changing the folding device 100 from the flattened state to the closed state.
- the push-out motion of the housing 100 in the process of changing from the closed state to the flattened state is convenient for realizing the deformation motion of setting the neutral layer of the flexible screen 200 in the flexible cover plate 201 .
- the first end 51 of the first rotating arm 5 is rotatably connected to the first fixing frame 31, and the second end 52 is rotatably connected to the rotating end 42 of the first transmission arm 4, the first housing 10 and the second During the relative rotation of the housing 30, the rotating end 42 of the first transmission arm 4 drives the second end 52 of the first rotating arm 5 to rotate around the first rotation center 4C, forming the first-stage link movement.
- the first rotation The first end 51 of the arm 5 rotates around the second end 52 of the first rotating arm 5 to form the second-level link movement, so the link movement of the first rotating arm 5 is equivalent to the second link movement.
- the second end 52 of the first rotating arm 5 Since the second end 52 of the first rotating arm 5 is rotatably connected to the rotating end 42 of the first transmission arm 4, the second end 52 of the first rotating arm 5 rotates around the fixed point synchronously with the rotating end 42 of the first transmission arm 4, so The rotation angle of the first-stage link movement of the first rotation arm 5 is equal to the rotation angle of the first transmission arm 4, and the direction is opposite.
- the first rotating arm 5 and the first transmission arm 4 form an interlocking structure, and the first rotating arm 5 and the first transmission arm 4 form a first-level hinge between the first fixed frame 31 and the second fixed frame 32, and the first The degree of freedom of movement of the rotating arm 5 is reduced to 1, so that the first rotating arm 5 and the first transmission arm 4 have no virtual position and no movement during the movement of the hinge 20, which improves the tensile strength of the hinge 20. reliability.
- the first housing 10 and the second housing are connected to each other.
- the rotating end 62 of the second transmission arm 6 drives the second end 72 of the second rotating arm 7 to rotate around the second rotation center 6C to form the first-stage link movement.
- the second rotating arm The first end 71 of the second rotating arm 7 rotates around the second end 72 of the second rotating arm 7 to form the second-level link movement, so the link movement of the second rotating arm 7 is equivalent to the two-link movement.
- the second end 72 of the second rotating arm 7 Since the second end 72 of the second rotating arm 7 is rotatably connected to the rotating end 62 of the second transmission arm 6, the second end 72 of the second rotating arm 7 rotates around the fixed point synchronously with the rotating end 62 of the second transmission arm 6, so The rotation angle of the first-stage link movement of the second rotation arm 7 is equal to the rotation angle of the second transmission arm 6, and the direction is opposite.
- the second rotating arm 7 and the second transmission arm 6 form an interlocking structure
- the second rotating arm 7 and the second transmission arm 6 form a first-level hinge between the first fixed frame 31 and the second fixed frame 32
- the second The freedom of movement of the rotating arm 7 is reduced to 1, so that during the movement of the hinge 20, the second rotating arm 7 and the second transmission arm 6 have no virtual position and no movement, which improves the tensile strength of the hinge 20. reliability.
- the first transmission arm 4 is rotated into the main shaft 1 so that the first rotating arm 5 extends out of the main shaft 1.
- the first rotating arm 5 pushes the first housing 10 away from the main shaft 1 through the first fixing frame 31, and the second transmission arm 6 is rotated into the main shaft 1, so that the second rotating arm 7 extends out of the main shaft 1, and the second rotating arm 7
- the second housing 30 is pushed away from the main shaft 1 by the second fixing bracket 32 .
- the first transmission arm 4 is rotated out of the main shaft 1, so that the first rotating arm 5 extends into the main shaft 1, and the first rotating arm 5 passes through the first rotating arm 5.
- the fixing frame 31 pulls the first housing 10 closer to the main shaft 1, the second transmission arm 6 rotates out of the main shaft 1, so that the second rotating arm 7 extends into the main shaft 1, and the second rotating arm 7 moves the second casing through the second fixing frame 32.
- the body 30 is pulled closer to the spindle 1 .
- the hinge 20 can cause the first fixing frame 31 to drive the first housing 10 to move away from the main shaft 1, and the second fixing frame 32 to drive the The second casing 30 moves away from the main shaft 1 .
- the first fixing frame 31 drives the first casing 10 to move in a direction close to the main shaft 1
- the second fixing frame 32 drives the second casing 30 to move toward the main shaft 1 . Move in the direction close to spindle 1.
- the hinge 20 can realize the inward-pulling motion of the casing of the folding device 100 during the change from the flattened state to the closed state, and the outward-pulling movement of the casing during the changing of the folding device 100 from the closed state to the flattened state, so that the folding In the process of unfolding or folding, the device 100 can realize the deformation movement with the flexible cover plate 201 of the flexible screen 200 as the neutral layer. This can reduce the risk of pulling or squeezing the flexible screen 200, improve the reliability of the flexible screen 200, and enable the flexible screen 200 and the foldable electronic device 1000 to have a longer service life.
- the first supporting plate 21 is stacked on the side of the first fixing frame 31 away from the second fixing frame 32
- the second supporting plate 21 is stacked on the side of the first fixing frame 31 away from the second fixing frame 32
- the plates 22 are stacked on the side of the second fixing frame 32 away from the first fixing frame 31 .
- the first supporting plate 21 and the second supporting plate 22 can be slid and retracted relative to the first housing 10 and the second housing 30 respectively, so that the spindle 1 Exposed to form a complete support for the bent portion 2002 of the flexible screen 200 .
- the hinge 20 can fully support the bent portion 2002 of the flexible screen 200 when the folding device 100 is in a flattened state or a closed state, thereby helping to protect the flexible screen 200 and improving user experience.
- the first support plate 21 is fixed with the sliding end 41 of the first transmission arm 4, and the second support plate 22 is fixed with the sliding end 61 of the second transmission arm 6, the first transmission arm 4 and the second transmission arm 6 are The control of the rotation of the first shell 10 and the second shell 30 is realized, and the control of the telescopic action of the first support plate 21 and the second support plate 22 is also realized. Therefore, the hinge 20 has a high degree of integration and is integrally connected. Simple relationship and high institutional reliability.
- the folding device 100 can realize the inner-pulling movement of the casing during the change from the flattened state to the closed state, and realize the outer-pulling movement of the casing during the change from the closed state to the flattened state, so that when unfolding or folding During the process, the deformation movement with the flexible cover plate 201 of the flexible screen 200 as the neutral layer is realized, so as to reduce the risk of pulling or squeezing the flexible screen 200, protect the flexible screen 200, and make the flexible screen 200 more reliable and flexible.
- the screen 200 and the folding electronic device 1000 have a longer service life.
- the design of arranging the neutral layer of the flexible screen 200 in the flexible cover plate 201 can be adapted to the design of fixedly connecting the periphery of the flexible cover plate 201 to the casing of the folding device 100, thereby reducing the bending time of the flexible screen 200.
- the risk of dislocation during the folding process is reduced, and the reliability of the flexible screen 200 is improved. This principle will be explained below.
- the stress axis represents the stress value
- 0 on the stress axis represents zero stress value.
- Stress can be divided into tensile stress and compressive stress, and the farther the position on the stress axis is from 0. The larger the stress value is; on the contrary, the closer the position on the stress axis to 0, the smaller the stress value.
- the cross-sectional position axis represents different positions in the cross-sectional layer structure of the flexible screen 200, wherein the flexible cover plate 201 is located at the lower end of the cross-sectional position axis.
- the display panel 202 of the flexible screen 200 may include multiple layer structures (eg, may include a substrate layer, a light emitting device layer, and an optically transparent adhesive layer connecting each layer), which is represented by multiple wireframes in FIG. 37 .
- the stress on the neutral layer is substantially zero.
- the cross-sectional positions located above the neutral layer (“above” is taken as an example from the perspective of Fig. 37) are all compressed and thus subjected to compressive stress. The farther the section position is from the neutral layer, the greater the compressive stress.
- the stress-section position curve shown in FIG. 37 is relatively steep, and the stress difference between the layers of the flexible screen 200 is small.
- the first casing 10 and the second casing 30 directly drive the flexible cover 201 fixed to the frame to bend, and the bending motion is transmitted from the flexible cover 201 to each layer structure of the display panel 202 in turn.
- the flexible screen 200 of this embodiment has the stress-cross-sectional position curve characteristic shown in FIG.
- the design of arranging the neutral layer of the flexible screen 200 in the flexible cover plate 201 can be adapted to the design of fixedly connecting at least part of the periphery of the flexible cover plate 201 to the casing of the folding device 100, thereby reducing the number of flexible screens 200. There is a risk of layer dislocation during the bending process, which improves the reliability of the flexible screen 200 .
- FIG. 38 shows a schematic diagram of a stress-cross-sectional position curve of the flexible screen 200' of a conventional folding electronic device during the bending process.
- the neutral layer is provided in the display panel 202' of the flexible screen 200', and the surface 202c' of the display panel 202' facing away from the flexible cover 201' is fixedly connected to the housing.
- the stress-section position curve of the flexible screen 200' is relatively gentle, and the stress difference between the layers of the flexible screen 200' is relatively large.
- the casing When the casing is folded or unfolded, the casing directly drives the display panel 202' to bend, and the bending motion is transmitted to each layer structure from the surface 202c' of the display panel 202'. Since the stress difference between the layers of the flexible screen 200' is large, when the bending motion is transferred layer by layer, the adhesive force of the optically transparent adhesive layer in the flexible screen 200' is often insufficient to resist the length difference between the layers. The slip caused by the change makes it easy to slip between the layers.
- the flexible screen When the folding device drives the flexible screen to deform, the flexible screen will generate a rebound force due to its own structure and material properties, which hinders the folding action when the folding device is folded, and accelerates the unfolding action when the folding device unfolds. In order to ensure the product experience, the rebound force needs to be controlled. For a flexible screen, the stress in the flexible cover contributes the most to the rebound force.
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Abstract
本申请提供了一种折叠电子设备,包括第一壳体、第二壳体和柔性屏;第一壳体与第二壳体能够相对转动以展开或者折叠,第一壳体的边缘和/或第二壳体的边缘具有边框,边框所围的区域形成收容槽;柔性屏包括柔性盖板与显示面板,柔性盖板与显示面板贴合,柔性盖板的边缘超出显示面板的边界;柔性屏安装于第一壳体与第二壳体,其中,显示面板的至少部分位于收容槽内,柔性盖板的边缘的内表面的至少一部分与边框固定连接;所述柔性屏的中性层位于所述柔性盖板中。本申请的方案能够提升柔性屏的防水性能。
Description
本申请要求于2021年3月31日提交中国专利局、申请号为202110346053.9、申请名称为“折叠电子设备”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
本申请涉及终端设备领域,尤其涉及一种折叠电子设备。
折叠屏手机使用了柔性屏,柔性屏具有可柔性弯折、轻薄、不易碎等优点。折叠屏手机中的柔性屏需要考虑防水设计,以避免水汽侵蚀(例如人手握持时皮肤上的汗液可能侵入柔性屏)。但是,现有折叠屏手机的柔性屏的防水效果不好,影响柔性屏的寿命。
发明内容
本申请的技术方案提供了一种折叠电子设备,能够提升柔性屏的防水性能。
该折叠电子设备包括第一壳体、第二壳体和柔性屏;第一壳体与第二壳体能够相对转动以展开或者折叠,第一壳体的边缘和/或第二壳体的边缘具有边框,边框所围的区域形成收容槽;柔性屏包括柔性盖板与显示面板,柔性盖板与显示面板贴合,柔性盖板的边缘超出显示面板的边界;柔性屏安装于第一壳体与第二壳体,其中,显示面板的至少部分位于收容槽内,柔性盖板的边缘的内表面的至少一部分与边框固定连接;柔性屏的中性层位于柔性盖板中。
本申请的方案中,第一壳体与第二壳体能相对转动并合拢,使得第一壳体与第二壳体处于折叠状态,也即该折叠电子设备处于折叠状态;第一壳体与第二壳体还能相对转动并展开,使得第一壳体与第二壳体处于展开状态,也即该折叠电子设备处于展开状态。边框可以仅分布在边缘的局部区域。边框近似呈围墙状结构。柔性盖板边缘的全部区域均可以超出显示面板的对应边界。该收容槽将显示面板对应该收容槽的部分收容在内。例如,第一壳体的边缘与第二壳体的边缘均具有边框,第一壳体上的收容槽收容显示面板的一部分,第二壳体上的收容槽收容显示面板的另一部分。或者仅第一壳体上有收容槽,则该收容槽收容显示面板的一部分,显示面板的其他部分均在该收容槽外。柔性盖板的内表面朝向显示面板,柔性盖板的外表面背向显示面板。柔性盖板的边缘指柔性盖板超出显示面板的部分。柔性盖板的边缘的内表面的至少一部分与边框的顶面固定连接,具体是柔性盖板的这部分的内表面与边框的顶面固定连接。柔性屏的中性层可以位于柔性盖板的该内表面与该外表面之间,其中包括该内表面与该外表面。
本申请的方案中,通过使柔性盖板的边界超出显示面板的边界,在第一壳体和/或第二壳体上设计边框和收容槽结构,使柔性盖板的边缘与边框固定连接,能够很好地封堵外界水汽的入口,并延长显示面板与外界的连通路径,使得水汽较难侵入显示面板,从而提升柔性屏的防水性能。而且,由于边框并未压住柔性盖板的边缘,不会影响柔性屏的有效显示面积,且使得折叠电子设备的边框较窄,产品外观体验更好。
并且,将柔性屏的中性层调整至柔性盖板中,使得柔性盖板在弯折过程中的形变减小,不易发生永久变形。当柔性屏处于展开状态时,柔性盖板的平面度能够得到保证。当柔性盖板的平面度较好时,外界环境在柔性盖板上的倒影的光影效果更加符合实际情况,不易出现光影畸变。另外,考虑柔性屏在弯折过程中弯折运动在柔性屏各层中的传递,柔性屏中的光学透明胶层的粘结力足以抵抗各层之间因长度变化而产生的滑移,使得各层之间不易滑移错 层。所以,将柔性屏的中性层设置在柔性盖板中的设计,能与将柔性盖板的至少部分周缘与折叠装置的壳体固定连接的设计相适应,从而减少柔性屏在弯折过程中发生错层的风险,提升柔性屏的可靠性。
在一种实现方式中,中性层位于柔性盖板背离显示面板的表面。本实现方式中,中性层位于柔性盖板的外表面。柔性盖板的外表面是可折叠电子设备的外观面,使中性层位于外表面,能保证产品外观面的平面度和光影效果,提升产品品质。
在一种实现方式中,边框包括第一台阶与第二台阶,第一台阶与第二台阶连接,第一台阶位于第二台阶的内周,第一台阶所围的区域形成收容槽,第一台阶的台阶面低于第二台阶的台阶面;柔性盖板的边缘的内表面的至少一部分与第一台阶的台阶面固定连接,柔性盖板背离显示面板的表面不高于第二台阶的台阶面。本实现方式中,边框的第二台阶能够对边框进行收容和防护,该设计能够增强壳体对柔性屏的防护,保证产品的可靠性。
在一种实现方式中,显示面板与收容槽的侧面具有间隔;和/或,第一台阶的高度为0.4mm-1.0mm;和/或,第一台阶的宽度为0.6mm-1.2mm。显示面板与收容槽的侧面具有间隔的设计,能够考虑到制造误差而预留尺寸余量,能够保证显示面板与收容槽之间的准确配合。第一台阶的该尺寸设计有利于保证壳体与柔性屏的可靠配合。
在一种实现方式中,柔性盖板的边缘的内表面的至少一部分与边框通过防水胶粘接。使用防水胶能可靠地保证柔性屏的防水性能。
在一种实现方式中,折叠电子设备包括铰链,铰链连接第一壳体与第二壳体,铰链用于产生机构运动,使第一壳体与第二壳体能够相对转动以展开或者折叠;铰链包括第一端部挡块与第二端部挡块,第一端部挡块与第二端部挡块分别位于第一壳体的转动轴线方向上的相对两端;柔性盖板的相对两侧边缘分别设有第一缺口和第二缺口,第一端部挡块位于第一缺口中,第二端部挡块位于第二缺口中。
本实现方式中,第一壳体的转动轴线方向是指第一壳体相对第二壳体转动的转轴方向。第一端部挡块与第二端部挡块能够作为可折叠电子设备两端的外观件,起到装饰美化作用。第一缺口与第二缺口均可对端部挡块(第一端部挡块与第二端部挡块的统称)进行避让。
在一种实现方式中,折叠电子设备包括铰链,铰链连接第一壳体与第二壳体,铰链用于产生机构运动,使第一壳体与第二壳体能够相对转动以展开或者折叠;铰链包括主轴、第一固定架、第二固定架、第一传动臂、第一转动臂、第二传动臂以及第二转动臂;第一壳体与第二壳体分别位于主轴的相对两侧;第一固定架固定于第一壳体,第二固定架固定于第二壳体;第一传动臂包括滑动端和转动端,第一传动臂的滑动端滑动连接第二固定架,第一传动臂的转动端转动连接主轴;第一转动臂的一端转动连接第一传动臂的转动端、另一端转动连接第一固定架;第二传动臂包括滑动端和转动端,第二传动臂的滑动端滑动连接第一固定架,第二传动臂的转动端转动连接主轴;第二转动臂的一端转动连接第二传动臂的转动端、另一端转动连接第二固定架。
本实现方式中,由于第一传动臂的转动端转动连接主轴、滑动端滑动连接第二固定架,第二固定架固定于第二壳体,第二传动臂的转动端转动连接主轴、滑动端滑动连接第一固定架,第一固定架固定于第一壳体,因此在第一壳体与第二壳体相对转动的过程中,第一壳体带动第一固定架相对主轴转动,第二传动臂随第一固定架相对主轴转动,且第二传动臂相对第一固定架滑动,第二壳体带动第二固定架相对主轴转动,第一传动臂随第二固定架相对主轴转动,且第一传动臂相对第二固定架滑动,故而折叠装置(第一壳体、铰链和第二壳体合称折叠装置)能够在展平状态与闭合状态之间自由切换,第一壳体与第二壳体能够相对展开 至展平状态,以使柔性屏呈展平形态,以实现大屏显示,第一壳体与第二壳体也能够相对折叠至闭合状态,以使电子设备便于收纳和携带。此外,第一壳体与第二壳体通过铰链相对折叠至闭合状态时,能够完全合拢,两者之间无缝隙或缝隙较小,使得折叠装置的外观较为完整,实现外观自遮蔽,应用该折叠装置的电子设备的外观较为完整,有利于提高产品的可靠性和用户的使用体验。
在第一壳体与第二壳体相对展开至展平状态的过程中,第一传动臂转入主轴,使得第一转动臂伸出主轴,第一转动臂通过第一固定架将第一壳体推离主轴,第二传动臂转入主轴,使得第二转动臂伸出主轴,第二转动臂通过第二固定架将第二壳体推离主轴。在第一壳体与第二壳体相对折叠至闭合状态的过程中,第一传动臂转出主轴,使得第一转动臂伸入主轴,第一转动臂通过第一固定架将第一壳体拉近主轴,第二传动臂转出主轴,使得第二转动臂伸入主轴,第二转动臂通过第二固定架将第二壳体拉近主轴。故而,铰链能够在第一壳体与第二壳体相对展开的过程中,使第一固定架带动第一壳体向远离主轴的方向移动、第二固定架带动第二壳体向远离主轴的方向移动,在第一壳体与第二壳体相对折叠的过程中,使第一固定架带动第一壳体向靠近主轴的方向移动、第二固定架带动第二壳体向靠近主轴的方向移动。也即,铰链能够实现折叠装置在展平状态向闭合状态变化的过程中的壳体内拉运动、和折叠装置在闭合状态向展平状态变化的过程中的壳体外推运动,使得折叠装置在展开或折叠的过程中,能够实现以柔性屏为中性面的变形运动,从而降低拉扯或挤压柔性屏的风险,使得柔性屏保持恒定长度,以保护柔性屏,提高柔性屏的可靠性,使得柔性屏和电子设备具有较长的使用寿命。
在一种实现方式中,主轴包括主内轴和固定于主内轴的主外轴,第一壳体与第二壳体处于折叠状态时,主内轴位于主外轴与第一固定架及第二固定架之间;第一传动臂绕第一转动中心转动,第一转动中心靠近主内轴且远离主外轴,第一转动中心靠近第二固定架且远离第一固定架;第二传动臂绕第二转动中心转动,第二转动中心靠近主内轴且远离主外轴,第二转动中心靠近第一固定架且远离第二固定架。
本实现方式中,在本实现方式中,通过设置第一转动中心和第二转动中心的位置,使得铰链更易实现折叠装置在展平状态向闭合状态变化的过程中的壳体内拉运动、和折叠装置在闭合状态向展平状态变化的过程中的壳体外推运动,实现以柔性屏为中性面的变形运动。此外,主内轴及主外轴均设有多个立体空间结构,通过对这些结构的设计,使得主内轴与主外轴组装后,能够共同形成多个活动空间,铰链的结构件活动安装于主轴的多个活动空间,从而实现与主轴的连接。主内轴及主外轴的分体设计,有利于降低主轴的制作难度,提高主轴的制作精度和产品良率。
在一种实现方式中,铰链包括第一支撑板和第二支撑板,第一支撑板固定连接第二传动臂的滑动端,第二支撑板固定连接第一传动臂的滑动端;第一壳体与第二壳体处于展开状态时,第一支撑板与第二支撑板齐平,第一支撑板搭设在第一固定架与主轴之间,第二支撑板搭设在第二固定架与主轴之间;第一壳体与第二壳体处于折叠状态时,第一支撑板堆叠于第一固定架背离第二固定架的一侧,第二支撑板堆叠于第二固定架背离第一固定架的一侧。
本实现方式中,在第一壳体与第二壳体相对展开至展平状态时,第一支撑板、主轴及第二支撑板能够共同形成对柔性屏的折弯部的完整平面支撑。在第一壳体与第二壳体相对折叠至闭合状态时,第一支撑板和第二支撑板能够分别相对第一壳体和第二壳体滑动收拢,使得主轴露出以形成对柔性屏的折弯部的完整支撑。故而,铰链在折叠装置处于展平状态或闭合状态时,均能够充分支撑柔性屏的折弯部,使得柔性屏不易因外力触摸而发生损坏,有利于 保护柔性屏,也有利于提高用户的使用体验。
在一种实现方式中,主轴具有支撑面;第一壳体与第二壳体处于折叠状态时,主轴的支撑面相对第一支撑板及第二支撑板露出,主轴的支撑面呈弧形。
本实现方式中,主轴能够在第一壳体与第二壳体相对折叠至闭合状态时,为柔性屏的折弯部提供完整半圆或接近半圆的支撑效果,与柔性屏的折弯部的理想闭合形态保持一致,从而能够对闭合形态的柔性屏提供更优化的支撑。
图1是本实施例的折叠电子设备在展开状态下的立体结构示意图;
图2是图1中的折叠电子设备中的折叠装置的立体结构示意图;
图3是图1中的折叠电子设备中的柔性屏的立体结构示意图;
图4是图3中的柔性屏的俯视结构示意图;
图5是图2中的折叠装置的分解结构示意图;
图6是本实施例中的折叠装置在折叠状态下的立体结构示意图;
图7是图5中A处的局部放大结构示意图;
图8是图1中的折叠电子设备的B-B剖视结构示意图;
图9是图8中C处的局部放大结构示意图;
图10是图8中D处的局部放大结构示意图;
图11是常规的折叠电子设备中的柔性屏与壳体的装配结构示意图;
图12是图1中的折叠电子设备在中间状态下的立体结构示意图;
图13是图1中的折叠电子设备在折叠状态下的立体结构示意图;
图14是图5中的折叠装置的铰链的分解结构示意图;
图15是图14中的铰链的部分结构的分解结构示意图;
图16是图12中的折叠电子设备的折叠装置在中间状态下的立体结构示意图;
图17是图15所示主轴的分解结构示意图;
图18是图17所示主外轴在另一视角下的结构示意图;
图19是图15所示主轴的E-E剖视结构示意图;
图20是图15所示主轴的F-F剖视结构示意图;
图21是图15所示主轴的G-G剖视结构示意图;
图22是图15所示主轴的H-H剖视结构示意图;
图23是图15所示主轴的I-I剖视结构示意图;
图24是图15所示端部连接组件在另一视角下的结构示意图;
图25是图24所示端部连接组件的部分分解结构示意图;
图26是图25所示第一限位件的分解结构示意图;
图27是图5所示铰链的部分结构示意图;
图28是图27所示第一支撑板在另一视角下的结构示意图;
图29是图2所示折叠装置的部分结构的示意图;
图30是图2所示折叠装置的部分结构的示意图;
图31是图2所示折叠装置的对应第一传动臂所在位置的剖面结构示意图;
图32是图2所示折叠装置的对应第二传动臂所在位置的剖面结构示意图;
图33是图16所示折叠装置的对应第一传动臂所在位置的剖面结构示意图;
图34是图16所示折叠装置的对应第二传动臂所在位置的剖面结构示意图;
图35是图6所示折叠装置的对应第一传动臂所在位置的剖面结构示意图;
图36是图6所示折叠装置的对应第二传动臂所在位置的剖面结构示意图;
图37是本实施例的柔性屏的应力-截面位置曲线示意图;
图38是常规折叠电子设备的柔性屏的应力-截面位置曲线示意图。
本申请以下实施例提供了一种折叠电子设备,该折叠电子设备包括但不限于手机、平板电脑、电子阅读器等。
如图1和图2所示,折叠电子设备1000可以包括折叠装置100和柔性屏200,柔性屏200固定在折叠装置100上。
柔性屏200用于显示图像。柔性屏200包括但不限于有机发光二极管(organic light-emitting diode,OLED)显示屏,有源矩阵有机发光二极体或主动矩阵有机发光二极体(active-matrixorganic light-emitting diode,AMOLED)显示屏,迷你发光二极管(mini organic light-emitting diode)显示屏,微型发光二极管(microorganic light-emitting diode)显示屏,微型有机发光二极管(micro organic light-emitting diode)显示屏,或者量子点发光二极管(quantum dot light emitting diodes,QLED)显示屏。
如图1和图3所示,可以将柔性屏200分为依次排列的第一非弯折区2001、弯折区2002以及第二非弯折区2003,弯折区2002连接在第一非弯折区2001与第二非弯折区2003之间。
如图3和图4所示,柔性屏200可以包括柔性盖板201和显示面板202,柔性盖板201和显示面板202层叠贴合。柔性盖板201用于对显示面板202进行防护,还可以在用户触摸时向用户提供触感和力反馈。显示面板202中设有多个像素单元,能够实现图像显示。柔性盖板201包括分布在第一非弯折区2001、弯折区2002以及第二非弯折区2003的部分,显示面板202也包括分布在第一非弯折区2001、弯折区2002以及第二非弯折区2003的部分。
如图4所示,柔性盖板201的周缘(例如四周的边缘)可以超出显示面板202的边界,也即显示面板202的各边界均可以内缩于柔性盖板201的对应边界之内,显示面板202的面积小于柔性盖板201的面积。柔性盖板201的中心可与显示面板202的中心基本重合(柔性盖板201与显示面板202均大致是中心对称结构),也即柔性盖板201的各边界到显示面板202中与该“各边界”对应的边界的距离可以基本一致。柔性盖板201的边界与显示面板202的对应边界的间距例如可以是0.6mm-1.2mm,例如0.6mm、1.0mm、1.2mm。使柔性盖板201的周缘超出显示面板202的边界,是为了便于将性盖板201的周缘与折叠装置100中的壳体粘接(下文将会描述)。
如图4所示,柔性盖板201的相对两侧边缘可以分别形成第一缺口201a和第二缺口201b。第一缺口201a和第二缺口201b可以大致位于柔性盖板201的中部,二者可以镜像分布。第一缺口201a与第二缺口201b的形状可以基本一致,例如二者均可以大致为梯形。第一缺口201a与第二缺口201b用于避让折叠装置100的铰链20中的端部挡块(下文将会描述)。由于第一缺口201a与第二缺口201b处的柔性盖板201被“切除”了材料,因此柔性盖板201在这两处的边界与显示面板202的对应边界的间距可以较小(例如可以小于0.6mm),而柔性盖板201在其他处的边界与显示面板202的对应边界的间距可以较大。在其他实施例中,根据产品需要,可以不设第一缺口201a和/或第二缺口201b。
如图2、图5和图6所示,折叠装置100可以包括第一壳体10、铰链20以及第二壳体 30,铰链20连接第一壳体10和第二壳体30。铰链20能够产生机构运动,使第一壳体10相对第二壳体30转动,以使第一壳体10与第二壳体30合拢或展开。示例性的,如图6所示第一壳体10与第二壳体30能够完全合拢至相互平行(允许存在少许偏差)。如图2所示,第一壳体10与第二壳体30完全展开时,二者之间的夹角可以大致呈180°(允许存在少许偏差,例如为夹角为165°、177°或者185°)。第一壳体10与第二壳体30可以统称壳体。第一壳体10与第二壳体30完全合拢时,该壳体处于折叠状态,也即折叠电子设备1000处于折叠状态;第一壳体10与第二壳体30完全展开时,该壳体处于展开状态,也即折叠电子设备1000处于展开状态。本实施例中,折叠电子设备1000可以通过铰链20的机构运动,在展开状态与折叠状态之间切换。
第一壳体10与第二壳体30的外形结构可以基本相同,也可以有所不同,本实施例不做限定。下面以第一壳体10为例进行重点说明。
如图5所示,第一壳体10的边缘具有边框10a,边框10可以分布在第一壳体10的周缘的部分区域,例如分布在第一壳体10未与铰链20连接的边缘,边框10a与铰链20可以近似合围成矩形。边框10a围成一个开放的区域,该区域形成收容槽10b,边框10a凸出于收容槽10b的底面10c,也即边框10a可作为收容槽10b的侧壁。
图7是图5中A处的局部放大示意图。如图7所示,边框10a可以具有阶梯结构。边框10a可以包括相连的第一台阶10d与第二台阶10e,第一台阶10d位于内周,第二台阶10e位于外侧。第一台阶10d凸出于收容槽10b的底面10c。第二台阶10c凸出于第一台阶10d的台阶面10f,也即第一台阶10d的台阶面10f低于第二台阶10e的台阶面10g(本实施例中,台阶面指台阶上基本平行于收容槽10b的底面10c的表面)。第二台阶10e的延伸轨迹可与第一台阶10d的延伸轨迹基本重合,二者的延伸长度可以基本一致;或者,第二台阶10e的延伸轨迹可仅与第一台阶10d的延伸轨迹的部分区段重合,第二台阶10e的延伸长度可以小于第一台阶10d的延伸长度。
本实施例中,第一台阶10d的高度,也即第一台阶10d的台阶面10f与收容槽10b的底面10c的间距,可以是0.4mm-1.0mm,例如0.4mm、0.8mm、1.0mm。第一台阶10d的宽度,也即第一台阶10d的侧面10h与第二台阶10e的侧面10i的间距,可以是0.6mm-1.2mm,例如0.6mm、1.0mm、1.2mm。在其他实施例中,边框可以不是阶梯结构,边框的横截面可以大致是矩形。此种边框类似于本实施例的边框10a去除第二台阶10e后的结构。
如图5所示,第二壳体30的边缘也可以具有边框30a,边框30a的结构可与第一壳体10上的边框10a的结构,或者上述的横截面大致成矩形的该边框的结构基本一致,此处不再重复描述。第二壳体30上的边框30a可以形成收容槽30b。本实施例中,在折叠电子设备1000的展开状态下,边框10a与边框30a被铰链20隔开,且边框10a、边框30a均与铰链20具有间隔,因此收容槽10b与收容槽30b并未形成封闭的槽。在其他实施例中,在折叠电子设备1000的展开状态下,边框10a与边框30a可以拼接闭合,使得收容槽10b与收容槽30b形成封闭的槽。
在其他实施例中,仅第一壳体10或者第二壳体30具有边框,并非二者均具有边框。因而,仅第一壳体10或者第二壳体30上的边框可以形成收容槽,并非第一壳体10与第二壳体30上均具有收容槽。图8为图1中的折叠电子设备1000的B-B剖视示意图,图9为图8中C处的局部放大结构示意图,图10为图8中D处的局部放大结构示意图。
如图9和图10所示,显示面板202位于第一非弯折区2001的部分在第一壳体10的收容槽10b内,显示面板202位于第二非弯折区2003的部分在第二壳体30的收容槽30b内。如 图8所示,显示面板202位于弯折区2002的部分可以与铰链20对应,显示面板202位于弯折区2002的部分可以基本在收容槽10b和收容槽30b外(例如大部分在收容槽10b与收容槽30b之间的区域)。在其他实施例中,若收容槽10b与收容槽30b形成封闭的槽,则显示面板202的所有区域均可位于该槽内,也即显示面板202的所有区域均可位于收容槽10b与收容槽30b内。
如图9和图10所示,显示面板202与收容槽10b的侧面(也即第一台阶10d的侧面10h)、收容槽30b的侧面30h之间均可以具有间隔,该间隔是考虑到制造误差而预留的尺寸余量,用于保证显示面板202与收容槽之间的准确配合。在其他实施例中也可以不设该间隔,此时显示面板202与收容槽的侧面是零间隙配合(允许有误差)。在其他实施例中,当第一壳体10与第二壳体30中的一个设有收容槽时,该收容槽将显示面板202的一部分收容在内,显示面板202的另一部分则在该收容槽外。
如图9和图10所示,柔性盖板201具有外表面201c和内表面201d,内表面201d朝向显示面板202,外表面201c背向显示面板202。柔性盖板201的边缘的内表面201d的一部分,可与边框10a中的第一台阶10d的台阶面10f,以及边框30a中的第一台阶30d的台阶面30f固定连接,例如采用防水胶粘接。由此,柔性盖板201、第一壳体10以及第二壳体30共同将显示面板202密封起来。边框10a中的第二台阶10e,以及边框30a的第二台阶30e环绕在柔性盖板201的外周,能向柔性盖板201提供防护。在其他实施例中,当显示面板202与收容槽的侧面是零间隙配合时,柔性盖板201的边缘的内表面201d的全部,均可与台阶面10f以及台阶面30f固定连接。
如图9和图10所示,柔性盖板201的外表面201c不高于第一壳体10上的第二台阶10e的台阶面10g,也不高于第二壳体30上的第二台阶30e的台阶面30g,也即柔性盖板201的外表面201c,可与台阶面10g及台阶面30g平齐,或者相对台阶面10g及台阶面30g下陷。
图11表示常规折叠电子设备中柔性屏200’与壳体10’的装配设计,其中图11采用了与图9相同的局部剖视表达方式。如图11所示,常规折叠电子设备中,柔性屏200’的柔性盖板201’与显示面板202’等面积贴合,显示面板202’与壳体10’粘接固定,柔性盖板201’不与壳体10’连接。为了对柔性屏200’进行保护,壳体10’的周缘可形成横截面大致为7形的边框10a’,该边框10a’压住柔性盖板201’的边缘。柔性盖板201’背离显示面板202’的外表面201c’与该边框10a’的内表面10m’之间具有间隔。此种设计导致外界水汽可以从该间隔中侵入显示面板202’,而且减小了柔性屏200’的有效显示面积,也导致常规折叠电子设备的边框10a’较宽,影响产品外观。
与常规设计相比,本申请实施例的折叠电子设备1000,通过使柔性盖板201的边界超出显示面板202的边界,在第一壳体10和/或第二壳体30上设计边框和收容槽结构,使柔性盖板201的边缘与边框固定连接,能够很好地封堵外界水汽的入口,并延长显示面板202与外界的连通路径,使得水汽较难侵入显示面板202,从而提升柔性屏200的防水性能。而且,由于边框并未压住柔性盖板201的边缘,不会影响柔性屏200的有效显示面积,且使得折叠电子设备1000的边框较窄,产品外观体验更好。
本实施例中,结合图1和图5所示,对于柔性屏200整体与折叠装置100的组装,柔性屏200的第一非弯折区2001固定于折叠装置100的第一壳体10,第二非弯折区2003固定于第二壳体30。弯折区2002可以对应铰链20,在第一壳体10与第二壳体30合拢或展开的过程中,弯折区2002发生形变。如图1所示,第一壳体10与第二壳体30处于展开状态时,柔性屏200处于展开形态;如图12所示,第一壳体10与第二壳体30处于中间状态时,柔性屏 200处于展开形态与折叠形态之间的中间形态;如图13所示,第一壳体10与第二壳体30处于折叠状态时,柔性屏200处于折叠形态。其中,折叠电子设备1000处于折叠状态时,柔性屏200位于折叠装置100的外侧,柔性屏200可以大致呈U型。
材料力学中有中性层的概念。中性层指的是材料在弯折过程中,外层受拉伸,内层受挤压,在其横截面上存在一个既不受拉,又不受压的过渡层,该过渡层上的应力几乎等于零,该过渡层称为材料的中性层。
本申请实施例中,通过对铰链20的结构进行设计,可以实现将柔性屏200的中性层设置在柔性盖板201中。中性层在柔性盖板201中,是指中性层可以位于柔性盖板201朝向显示面板202的内表面201d,与柔性盖板201背向显示面板202的外表面201c之间。可以理解的是,将中性层设置在柔性盖板201中,柔性盖板201在弯折过程中的形变减小,不易发生永久变形。当柔性屏200处于展开状态时,柔性盖板201的平面度能够得到保证。当柔性盖板201的平面度较好时,外界环境在柔性盖板201上的倒影的光影效果更加符合实际情况,不易出现光影畸变。由于柔性盖板201背向显示面板202的外表面201c是产品的外观面,因而可以示意性地使中性层位于外表面201c,这样能保证产品外观面的平面度和光影效果,提升产品品质。
下面将详细描述能实现中性层的上述位置设计的铰链20的结构。
如图5、图14和图15所示,铰链20可以包括主轴1、端部连接组件20a、第一支撑板21和第二支撑板22。
其中,主轴1位于第一壳体10与第二壳体30之间。主轴1内部形成多个连通至主轴1外部的活动空间,端部连接组件20a活动安装于这些活动空间,以连接主轴1。主轴1沿其轴向方向延伸,铰链20整体的转动轴线与主轴1的轴向方向相平行。
端部连接组件20a连接第一壳体10、主轴1及第二壳体30。端部连接组件20a的数量可以为两个,两个端部连接组件20a在主轴1的轴向方向上间隔排列,例如可以分别连接于主轴1的顶部和底部。本实施例中,两个端部连接组件20a的结构可以相同,使得铰链20的整体结构较为简单、加工成本低。
在其他实施例中,两个端部连接组件20a的结构也可以不同。在其他实施例中,也可以仅设置一个端部连接组件20a,端部连接组件20a连接主轴1的中部、第一壳体10的中部以及第二壳体30的中部。可以理解的是,铰链20的结构可以有多种组合和变形方式,本申请实施例对此不做严格限定。
第一支撑板21和第二支撑板22位于两个端部连接组件20a朝向柔性屏200的一侧。第一支撑板21位于主轴1靠近第一壳体10的一侧,第一支撑板21连接两个端部连接组件20a。第二支撑板22位于主轴1靠近第二壳体30的一侧,第二支撑板22连接两个端部连接组件20a。
上面描述了铰链20中各个部件的连接或位置设计,下面将详细描述铰链20中部件的结构。
如图5、图6、图14和图16所示,主轴1具有支撑面11。第一壳体10与第二壳体30相对展开至展平状态时,主轴1的支撑面11相对第一支撑板21和第二支撑板22部分露出。第一支撑板21、主轴1及第二支撑板22能够共同支撑柔性屏200的折弯部2002,使得柔性屏200更为平整,且不易因外力触摸而发生损坏,以提高柔性屏200的可靠性。其中,如图16所示,第一壳体10与第二壳体30处于中间状态时,主轴1的支撑面11相对第一支撑板21和第二支撑板22部分露出,主轴1的支撑面11露出的面积相较于展平状态露出的面积较 多,主轴1的支撑面11与第一支撑板21及第二支撑板22共同支撑柔性屏200的折弯部2002。如图6所示,第一壳体10与第二壳体30相对折叠至闭合状态时,主轴1的支撑面11相对第一支撑板21及第二支撑板22完全露出,主轴1的支撑面11支撑柔性屏200的折弯部2002。
示例性的,主轴1的支撑面11可以呈弧形,这可以包括两种情形:支撑面11为标准弧形面(例如球体或椭球体的部分表面),或者支撑面11近似为标准弧形面。此时,在第一壳体10与第二壳体30相对折叠至闭合状态时,主轴1的支撑面11与柔性屏200的折弯部2002的理想闭合形态保持一致,为柔性屏200的折弯部2002提供完整半圆或接近半圆的支撑效果,从而能够对闭合形态的柔性屏200提供更充分可靠的支撑。
一些实施例中,主轴1的支撑面11为标准弧形面,其圆心角可以在150°至180°范围内,以更好地支撑柔性屏200。另一些实施例中,主轴1的支撑面11的中部区域呈平面状,两侧区域呈弧面状。此时,支撑面11整体近似弧形,在闭合状态中能够对柔性屏200实现半圆形或近似半圆形支撑。支撑面11的中部区域能够在展平状态中,与第一支撑板21及第二支撑板22共同对柔性屏200起到平面支撑作用。在其他实施例中,主轴1的支撑面11也可以有其他形状。例如,主轴1的支撑面11设置为半椭圆形,以缩小折叠装置100处于闭合状态时的宽度,从而更易携带和收纳。
请一并参阅图17和图18,其中图17是图15所示主轴1的分解结构示意图,图18是图17所示主轴1的主外轴14在另一角度视角下的结构示意图。
如图17和图18所示,主轴1可以包括主外轴14和主内轴15。主外轴14固定于主内轴15的一侧。主轴1的支撑面11为主外轴14的表面,支撑面11背向主内轴15。
主内轴15及主外轴14均设有多个立体空间结构,通过对这些结构的设计,使得主内轴15与主外轴14组装后,能够共同形成多个活动空间,端部组件20a中的结构件活动安装于主轴1中的多个活动空间,从而实现与主轴1的连接。主内轴15及主外轴14的分体设计,有利于降低主轴1的制造难度,提高主轴1的制造精度和产品良率。
一些实施例中,如图17所示,主内轴15包括主内轴本体151、多个凹槽152、多个凸块153以及多个紧固孔155。主内轴本体151大致呈板状,多个凸块153形成于主内轴本体151,多个凹槽152形成于主内轴本体151和/或多个凸块153上(在本申请实施例中,“A和/或B”包括“A”、“B”以及“A和B”三种情况。)凸块153与凹槽152相互结合,以形成多个立体空间结构。多个紧固孔155形成于主内轴本体151。其中,图16中示意性地标示出部分凹槽152、部分凸块153和部分紧固孔155的标号。
如图18所示,主外轴14包括主外轴本体141、多个凹槽143、多个凸块144、两个端部挡块146(可分别称为第一端部挡块146和第二端部挡块146)以及多个紧固孔145。主外轴本体141大致呈弧形板状,两个端部挡块146固定于主外轴本体141的两端。多个凸块144形成于主外轴本体141,多个凹槽143形成于主外轴本体141和/或多个凸块144上,凸块144与凹槽143相互结合,以形成多个立体空间结构。多个紧固孔145形成于多个凸块144。其中,图17中示意性地标示出部分凹槽143、部分凸块144和部分紧固孔145的标号。
主外轴14与主内轴15相互固定后,主外轴本体141、两个端部挡块146以及主内轴本体151共同包围形成主轴1的内部空间,两个端部挡块146露出,主外轴14的多个紧固孔145与主内轴15的多个紧固孔155对齐,通过紧固件(图中未示出)固定主内轴15与主外轴14。其中,紧固件包括但不限于螺钉、螺栓、铆钉、销钉等。主外轴14的多个立体空间结构与主内轴15的多个立体空间结构共同形成主轴1的多个活动空间。示例性的,多个活动空间的部分活动空间结构相同,部分活动空间结构不同。结构不同的活动空间用于与结构不 同的结构件相配合,使得主轴1与端部组件20a的连接结构更为灵活和多样化。结构相同的活动空间用于与结构相同的结构件相配合,有利于降低主轴1与端部连接组件20a的设计难度和成本。
结合图18、图4和图1所示,一个端部挡块146位于柔性盖板201上的第一缺口201a中,另一个位于柔性盖板201上的第二缺口201b中。第一缺口201a与第二缺口201b均可对端部挡块146进行避让。
一些实施例中,如图17所示,主内轴15的部分凸块153具有限位凹槽1531,用于在主轴1的轴向方向上,对安装于对应的活动空间的结构件进行限位,以提高连接结构的可靠性。图17中示意性地标示出部分限位凹槽1531。如图18所示,主外轴14的部分凹槽143的槽壁设有限位凹槽1431,以在主轴1的轴向方向上,对安装于对应的活动空间的结构件进行限位,以提高连接结构的可靠性。图18中示意性地标示出部分限位凹槽1431。可以理解的,同一个活动空间内设置有一个限位凹槽(1531/1431),即可实现对结构件在主轴1的轴向方向上的限位。当然,在一些实施例中,同一个活动空间中也可以设置两个限位凹槽(1531、1431),以增加限位稳定性。
一些实施例中,如图18所示,主外轴14的部分凸块144具有限位作用,这部分凸块144位于主轴1的活动空间中,用于对端部组件20中的结构件进行限位,防止该结构件意外脱离主轴1,以提高端部连接组件20a与主轴1的连接可靠性和运动可靠性,使得铰链20及折叠装置100的可靠性更高。可以理解的是,主轴1也可以在主内轴15上设置用于限位的凸块。
请一并参阅图19至图23,图19是图15所示主轴1沿E-E线剖开的结构示意图,图20是图15所示主轴1沿F-F线剖开的结构示意图,图21是图15所示主轴1沿G-G线剖开的结构示意图,图22是图15所示主轴1沿H-H线剖开的结构示意图,图23是图15所示主轴1沿I-I线剖开的结构示意图。
示例性的,本实施例的主轴1形成多个活动空间,多个活动空间用于与端部连接组件20a的不同结构件相配合。
如图19所示,主外轴14与主内轴15共同围设形成弧形槽131和连通孔134,弧形槽131的圆心靠近主内轴15且远离主外轴14,弧形槽131的一端连通主轴1一侧的外部空间,连通孔134将弧形槽131的另一端连通至主轴1另一侧的外部空间,弧形槽131和连通孔134共同形成活动空间。一些实施例中,活动空间还可以包括连通弧形槽131的两个限位凹槽(1531、1431),其中一个形成于主外轴14,另一个形成于主内轴15。一些实施例中,主外轴14还可以包括具有限位作用的凸块144,该凸块144伸入弧形槽131,以对安装于该弧形槽131的结构件进行限位。
如图20所示,主外轴14与主内轴15共同围设成M形槽132,M形槽132的两端分别连通主轴1两侧的外部空间,该M形槽132的侧壁形成两个间隔设置的凹陷槽133,M形槽132与两个凹陷槽133共同形成活动空间。
如图21所示,主外轴14与主内轴15共同围设形成弧形槽131和连通孔134,弧形槽131的圆心靠近主内轴15且远离主外轴14,弧形槽131的一端连通主轴1一侧的外部空间,连通孔134将弧形槽131的另一端连通至主轴1另一侧的外部空间,弧形槽131和连通孔134共同形成活动空间。一些实施例中,活动空间还可以包括连通弧形槽131的两个限位凹槽(1531、1431),其中一个形成于主外轴14,另一个形成于主内轴15。一些实施例中,主外轴14还可以包括具有限位作用的凸块144,该凸块144伸入弧形槽131,以对安装于该弧形槽131的结构件进行限位。
图19所示活动空间和图21所示活动空间成对设置,活动空间的弧形槽131和连通孔134的位置与活动空间的弧形槽131和连通孔134的位置相反。
如图22所示,主外轴14与主内轴15共同围设形成弧形槽131,弧形槽131的圆心靠近主外轴14且远离主内轴15,形成活动空间。一些实施例中,活动空间还可以包括连通弧形槽131的两个限位凹槽(1531、1431),其中一个形成于主外轴14,另一个形成于主内轴15。一些实施例中,主外轴14还可以包括具有限位作用的凸块144,该凸块144伸入弧形槽131,以对安装于该弧形槽131的结构件进行限位。
如图23所示,主外轴14与主内轴15共同围设形成弧形槽131,弧形槽131的圆心靠近主外轴14且远离主内轴15,形成活动空间。一些实施例中,活动空间还可以包括连通弧形槽131的两个限位凹槽(1531、1431),其中一个形成于主外轴14,另一个形成于主内轴15。一些实施例中,主外轴14还可以包括具有限位作用的凸块144,该凸块144伸入弧形槽131,以对安装于该弧形槽131的结构件进行限位。
图22所示活动空间和图23所示活动空间成对设置,两者的位置相反。
如图19、图21至图23所示,主外轴14与主内轴15共同形成多个弧形槽131。多个弧形槽131位于不同的活动空间,用于与不同的结构件相配合。
可以理解的是,本申请实施例中的主轴1也可以有其他的结构,本申请对此不做严格限定。
请一并参阅图24和图25,图24是图15所示端部连接组件20a在另一角度的结构示意图,图25是图24所示端部连接组件20a的部分分解结构示意图。
一些实施例中,铰链20的端部连接组件20a包括第一固定架31、第二固定架32、第一传动臂4、第一转动臂5、第二传动臂6以及第二转动臂7。示例性的,第一传动臂4包括滑动端41和转动端42,第一传动臂4的滑动端41滑动连接第二固定架32,第一转动臂5的一端转动连接第一传动臂4的转动端42、另一端转动连接第一固定架31。第二传动臂6包括滑动端61和转动端62,第二传动臂6的滑动端61滑动连接第一固定架31,第二转动臂7的一端转动连接第二传动臂6的转动端62、另一端转动连接第二固定架32。
一些实施例中,如图24和图25所示,第一固定架31包括第一连接块311。第一连接块311可以呈爪状,第一连接块311具有转动孔3111。第一转动臂5包括呈爪状的第一端51,第一转动臂5的第一端51具有转动孔511。第一转动臂5的第一端51与第一连接块311交错连接,通过转轴(图中未示出)穿过第一连接块311的转动孔3111和第一转动臂5的第一端51的转动孔5111,使得第一转动臂5的第一端51转动连接第一连接块311,从而实现第一转动臂5与第一固定架31的转动连接。其中,第一转动臂5的第一端51与第一连接块311交错连接,可以在主轴1的轴向方向上实现彼此限位,提高铰链20的连接可靠性。其中,本申请实施例中的转轴可以是销。
示例性的,第一连接块311包括止位块3112,第一壳体10相对第二壳体30展开至展平状态时,第一转动臂5的第一端51的端部抵持止位块3112,使得第一转动臂5停留在预定位置,避免因第一壳体10和第二壳体30因过度翻转而拉扯柔性屏200,以保护柔性屏200。
可以理解的是,第一固定架31的第一连接块311和第一转动臂5的第一端51也可以有其他结构,能够满足两者之间的转动连接关系即可,本申请实施例对此不做严格限定。
一些实施例中,如图24和图25所示,第一转动臂5还包括呈爪状的第二端52,第一转动臂5的第二端52与第一端51相背设置,第一转动臂5的第二端52具有转动孔522。第一传动臂4的转动端42的端部呈爪状,第一传动臂4的转动端42的端部具有转动孔423。第 一转动臂5的第二端52与第一传动臂4的转动端42的端部交错连接,通过转轴(图中未示出)穿过第一转动臂5的第二端52的转动孔522和第一传动臂4的转动端42的转动孔423,使得第一转动臂5的第二端52转动连接第一传动臂4的转动端42,从而实现第一转动臂5与第一传动臂4的转动连接。其中,第一转动臂5的第二端52与第一传动臂4的转动端42的端部交错连接,可以在主轴1的轴向方向上实现彼此限位,提高铰链20的连接可靠性。可以理解的是,第一转动臂5的第二端52和第一传动臂4的转动端42也可以有其他结构,能够满足两者之间的转动连接关系即可,本申请实施例对此不做严格限定。
一些实施例中,如图25所示,第一传动臂4的转动端42呈弧形。第一传动臂4的转动端42可以安装于主轴1的其中一个弧形槽131,以使第一传动臂4转动连接主轴1。示例性的,第一传动臂4的转动端42安装于主轴1的活动空间的弧形槽131(参阅图13),此时,第一传动臂4与主轴1相对转动的转动中心靠近主内轴15且远离主外轴14。
在本实施例中,第一传动臂4与主轴1之间通过虚拟轴连接,转动连接结构简单,占用空间小,有利于减小铰链20的厚度,使得折叠装置100及折叠电子设备1000更易实现轻薄化。其他一些实施例中,第一传动臂4与主轴1之间也可以通过真实轴连接,本申请实施例对此不做严格限定。
一些实施例中,如图25所示,第一传动臂4的转动端42还可以包括限位凸块422,限位凸块422形成于转动端42的端部位置。限位凸块422用于与主轴1的起到限位作用的凸块144(参阅图13)相互配合,以防止第一传动臂4意外脱离主轴1。第一传动臂4的转动端42还可以包括限位凸起421,限位凸起421形成转动端42的内侧位置和/或外侧位置。限位凸起421用于与主轴1的限位凹槽1531和/或限位凹槽1431(参阅图13)相配合,使得第一传动臂4与主轴1实现在主轴1轴向方向上的相互限位。
一些实施例中,如图24和图25所示,第二固定架32具有第一滑槽322。第一滑槽322的侧壁可以具有凹陷的导向空间3221。第一传动臂4的滑动端41安装于第一滑槽322,以滑动连接第二固定架32。第一传动臂4的滑动端41包括位于周侧的第一凸缘413。第一凸缘413安装于第一滑槽322的导向空间3221。在本实施例中,通过第一滑槽322的导向空间3221与第一传动臂4的第一凸缘413的配合,能够引导第一传动臂4的滑动端41于第一滑槽322的滑动方向,使得第一传动臂4与第二固定架32之间的相对滑动动作更易实现、控制精度更高。
一些实施例中,如图24和图25所示,铰链20还可以包括第一限位件81。第一限位件81安装于第一传动臂4的滑动端41,第一限位件81卡接第二固定架32。在本实施例中,第一限位件81用于限定第一传动臂4与第二固定架32的相对位置关系,使得第一传动臂4与第二固定架32能够在不受较大外力时保持预设的相对位置关系,铰链20能够在预设角度停留,折叠装置100能够保持展平状态或闭合状态,以提高折叠装置100及折叠电子设备1000的用户使用体验。
示例性的,第二固定架32还包括第一凹陷区323以及第二凹陷区324,第一凹陷区323及第二凹陷区324均连通第一滑槽322。其中,第一凹陷区323位于第二凹陷区324的靠近第一固定架31的一侧,结合参阅图8,也即,第一凹陷区323位于主轴1与第二凹陷区324之间。第一壳体10与第二壳体30相对展开至展平状态时,第一限位件81部分卡入第一凹陷区323;第一壳体10第二壳体30相对折叠至闭合状态时,第一限位件81部分卡入第二凹陷区324。
请一并参阅图24至图26,图26是图25所示第一限位件81的分解结构示意图。
一些实施例中,第一限位件81包括第一支架811和第一弹性件812。第一支架811为刚性结构,在外力作用下不易发生形变。第一支架811包括控制部8111和抵持部8112。抵持部8112用于抵持外部结构件,以对结构件进行限位。控制部8111用于控制抵持部8112的位置。示例性的,控制部8111包括基板8113和多个导向柱8114,多个导向柱8114彼此间隔地固定于基板8113的一侧。抵持部8112固定于基板8113的另一侧。第一弹性件812为弹性结构,在外力作用下容易发生形变。第一弹性件812的一端安装于第一支架811的控制部8111。示例性的,第一弹性件812可以包括多个弹簧8121,多个弹簧8121一一对应地套设在多个导向柱8114上。
第一弹性件812的一端安装于第一支架811的控制部8111。第一传动臂4的滑动端41具有第一安装槽414,第一限位件81安装于第一安装槽414。第一弹性件812的另一端(也即远离控制部8111的一端)抵持第一安装槽414的槽壁,第一弹性件812处于压缩状态。第一支架811的抵持部8112部分伸出第一安装槽414,且卡接第二固定架32。由于第一限位件81的第一弹性件812能够在外力作用下发生形变,从而使得第一限位件81能够相对第二固定架32、在第一凹陷区323与第二凹陷区324之间顺利移动,提高第一传动臂4与第二固定架32之间的限位可靠性。
如图26所示,一些实施例中,第一限位件81还可以包括第一缓冲件813,第一缓冲件813安装于第一支架811的抵持部8112。其中,第一缓冲件813可以采用刚度较小的材料(例如橡胶等),以在受到外力时,能够通过形变吸收冲击力,实现缓冲。第一限位件81通过设置第一缓冲件813,能够缓冲抵持部8112与结构件(也即第二固定架32)之间的应力,从而提高限位结构的可靠性。
一些实施例中,如图24和图25所示,第二固定架32包括第二连接块321。第二连接块321可以呈爪状,第二连接块321具有转动孔3211。第二转动臂7包括呈爪状的第一端71,第二转动臂7的第一端71具有转动孔711。第二转动臂7的第一端71与第二连接块321交错连接,通过转轴(图中未示出)穿过第二连接块321的转动孔3211和第二转动臂7的第一端71的转动孔711,使得第二转动臂7的第一端71转动连接第二连接块321,从而实现第二转动臂7与第二固定架32的转动连接。其中,第二转动臂7的第一端71与第二连接块321交错连接,可以在主轴1的轴向方向上实现彼此限位,提高铰链20的连接可靠性。
示例性的,第二连接块321包括止位块3212,第一壳体10相对第二壳体30展开至展平状态时,第二转动臂7的第一端71的端部抵持止位块3212,使得第二转动臂7停留在预定位置,避免因第一壳体10和第二壳体30因过度翻转而拉扯柔性屏200,以保护柔性屏200。
可以理解的是,第二固定架32的第二连接块321和第二转动臂7的第一端71也可以有其他结构,能够满足两者之间的转动连接关系即可,本申请实施例对此不做严格限定。
一些实施例中,如图24和图25所示,第二转动臂7还包括呈爪状的第二端72,第二转动臂7的第二端72与第一端51相背设置,第二转动臂7的第二端72具有转动孔721。第二传动臂6的转动端62的端部呈爪状,第二传动臂6的转动端62的端部具有转动孔623。第二转动臂7的第二端72与第二传动臂6的转动端62的端部交错连接,通过转轴(图中未示出)穿过第二转动臂7的第二端72的转动孔721和第二传动臂6的转动端62的转动孔623,使得第二转动臂7的第二端72转动连接第二传动臂6的转动端62,从而实现第二转动臂7与第二传动臂6的转动连接。其中,第二转动臂7的第二端72与第二传动臂6的转动端62的端部交错连接,可以在主轴1的轴向方向上实现彼此限位,提高铰链20的连接可靠性。可以理解的是,第二转动臂7的第二端72和第二传动臂6的转动端62也可以有其他结构,能 够满足两者之间的转动连接关系即可,本申请实施例对此不做严格限定。
一些实施例中,如图25所示,第二传动臂6的转动端62呈弧形。第二传动臂6的转动端62可以安装于主轴1的其中一个弧形槽131,以使第二传动臂6转动连接主轴1。示例性的,第二传动臂6的转动端62安装于主轴1的活动空间的弧形槽131(参阅图21),此时,第二传动臂6与主轴1相对转动的转动中心靠近主内轴15且远离主外轴14。
在本实施例中,第二传动臂6与主轴1之间通过虚拟轴连接,转动连接结构简单,占用空间小,有利于减小铰链20的厚度,使得折叠装置100及折叠电子设备1000更易实现轻薄化。其他一些实施例中,第二传动臂6与主轴1之间也可以通过真实轴连接,本申请实施例对此不做严格限定。
一些实施例中,如图25所示,第二传动臂6的转动端62还可以包括限位凸块622,限位凸块622形成于转动端62的端部位置。限位凸块622用于与主轴1的起到限位作用的凸块144(参阅图21)相互配合,以防止第二传动臂6意外脱离主轴1。第二传动臂6的转动端62还可以包括限位凸起621,限位凸起621形成转动端62的内侧位置和/或外侧位置。限位凸起421用于与主轴1的限位凹槽1431和/或限位凹槽1531(参阅图21)相配合,使得第二传动臂6与主轴1实现在主轴1轴向方向上的相互限位。
一些实施例中,如图24和图25所示,第一固定架31具有第二滑槽312。第二滑槽312的侧壁可以具有凹陷的导向空间3121。第二传动臂6的滑动端61安装于第二滑槽312,以滑动连接第一固定架31。第二传动臂6的滑动端61包括位于周侧的第二凸缘613。第二凸缘613安装于第二滑槽312的导向空间3121。在本实施例中,通过第二滑槽312的导向空间3121与第二传动臂6的第二凸缘613的配合,能够引导第二传动臂6的滑动端61于第二滑槽312的滑动方向,使得第二传动臂6与第一固定架31之间的相对滑动动作更易实现、控制精度更高。
一些实施例中,如图18和图19所示,铰链20还可以包括第二限位件82。第二限位件82安装于第二传动臂6的滑动端61,第二限位件82卡接第一固定架31。在本实施例中,第二限位件82用于限定第二传动臂6与第一固定架31的相对位置关系,使得第二传动臂6与第一固定架31能够在不受较大外力时保持预设的相对位置关系,铰链20能够在预设角度停留,折叠装置100能够保持展平状态或闭合状态,以提高折叠装置100及折叠电子设备1000的用户使用体验。
示例性的,第一固定架31还包括第三凹陷区313以及第四凹陷区314,第三凹陷区313及第四凹陷区314均连通第二滑槽312。其中,第三凹陷区313位于第四凹陷区314的靠近第二固定架32的一侧,结合参阅图8,也即,第三凹陷区313位于主轴1与第四凹陷区314之间。第一壳体10与第二壳体30相对展开至展平状态时,第二限位件82部分卡入第三凹陷区313;第一壳体10第二壳体30相对折叠至闭合状态时,第二限位件82部分卡入第四凹陷区314。
示例性的,第二限位件82的结构与第一限位件81的结构相同,以简化铰链20的物料种类,降低铰链20的设计难度和成本。本申请实施例不再赘述第二限位件82的具体结构。在其他一些实施例中,第二限位件82的结构也可以与第一限位件81的结构不同。
一些实施例中,如图18和图19所示,铰链20还可以包括第一同步摆臂91和第二同步摆臂92。第一同步摆臂91包括转动端911和活动端912。第一同步摆臂91的转动端911转动连接主轴1,第一同步摆臂91的活动端912活动连接第一固定架31,在第一壳体10与第 二壳体30相对折叠或展开的过程中,第一同步摆臂91的活动端912相对第一固定架31滑动且转动。
示例性的,第一同步摆臂91的转动端911包括第一转动主体9111、第一转轴9112及第一齿轮9113。第一转动主体9111包括相背设置的正面、背面以及连接在正面与背面之间的周侧面。第一齿轮9113固定于第一转动主体9111的周侧面。第一转轴9112固定于第一转动主体9111的正面和/或背面。一些实施例中,第一转轴9112包括两个部分,分别固定在第一转动主体9111的正面和背面,使得第一同步摆臂91通过第一转轴9112转动连接其他结构时,具有更佳的平衡性和稳定性。在另一些实施例中,第一转轴9112包括一个部分,第一转轴9112固定在第一转动主体9111的正面或背面,以降低第一同步摆臂91的安装空间需求。第一转轴9112用于转动连接主轴1。第一同步摆臂91可以安装于主轴1的活动空间(如图14所示),第一转轴9112安装于M形槽132的凹陷槽133处。在本实施例中,第一同步摆臂91的转动端911与主轴1之间通过真实轴实现转动连接。在其他一些实施例中,第一同步摆臂91的转动端911与主轴1之间也可以通过虚拟轴实现转动连接,本申请实施例对此不做严格限定。
示例性的,第一同步摆臂91的活动端912包括第三转动主体9121和第三转轴9122,第三转轴9122固定于第三转动主体9121的正面和/或背面。第一固定架31还具有第三滑槽316,第三滑槽316的槽壁具有凹陷的导向空间3161。其中,第三滑槽316的导向空间3161的导向方向与第二滑槽312的导向空间3121的导向方向相同。第一同步摆臂91的活动端912可以安装于第一固定架31的第三滑槽316,且第三转轴9122可以安装于第三滑槽316的导向空间3161。第一同步摆臂91的活动端912可以相对第一固定架31滑动和转动。
在本实施例中,通过第三滑槽316的导向空间3161与第一同步摆臂91的第一转轴9112的配合,能够引导第一同步摆臂91的活动端912于第三滑槽316的滑动方向,使得第一同步摆臂91与第一固定架31之间的相对活动动作更易实现、控制精度更高。
一些实施例中,如图24和图25所示,第二同步摆臂92包括转动端921和活动端922,第二同步摆臂92的转动端921转动连接主轴1,第二同步摆臂92的转动端921啮合第一同步摆臂91的转动端911,第二同步摆臂92的活动端922活动连接第二固定架32,第一壳体10与第二壳体30相对折叠或展开的过程中,第二同步摆臂92的活动端922相对第二固定架32滑动且转动。
在本实施例中,由于第一同步摆臂91的转动端911与第二同步摆臂92的转动端921相互啮合,第一同步摆臂91的转动端911和第二同步摆臂92的转动端921均转动连接主轴1,第一同步摆臂91的活动端912活动连接第一固定架31,第二同步摆臂92的活动端922活动连接第二固定架32,因此在第一固定架31与第二固定架32相对展开或相对折叠的过程中,第一同步摆臂91和第二同步摆臂92能够控制第一固定架31和第二固定架32相对主轴1的转动角度一致,使得第一固定架31和第二固定架32的转动动作具有同步性和一致性,铰链20的折叠动作和展开动作对称性较佳,有利于提高用户的使用体验。
其中,第一同步摆臂91转动连接主轴1、滑动连接且转动连接第一固定架31,也即形成连杆滑块结构。第二同步摆臂92转动连接主轴1、滑动连接且转动连接第二固定架32,也即形成连杆滑块结构。两个相互啮合的连杆滑块结构能够很好地控制第一壳体10和第二壳体30的转动动作的同步性和一致性。
一些实施例中,如图24和图25所示,第二同步摆臂92的转动端921包括第二转动主体 9211、第二转轴9212及第二齿轮9213,第二转轴9212固定于第二转动主体9211的正面和/或背面,第二齿轮9213固定于第二转动主体9211的周侧面。第二同步摆臂92的转动端921可以安装于主轴1的活动空间(如图20所示),第二转轴9212安装于M形槽132的另一个凹陷槽133处。第二转轴9212转动连接主轴1,第二齿轮9213啮合第一齿轮9113。
在本实施例中,由于第一同步摆臂91的转动端911与第二同步摆臂92的转动端921通过第一齿轮9113与第二齿轮9213直接啮合,因此第一同步摆臂91和第二同步摆臂92共同形成的同步组件的结构简单、运动过程易控制、准确度高。
示例性的,第二同步摆臂92的活动端922包括第四转动主体9222和第四转轴9221,第四转轴9221固定于第四转动主体9222的正面和/或背面。第二固定架32还具有第四滑槽326,第四滑槽326的槽壁具有凹陷的导向空间3261。其中,第四滑槽326的导向空间3261的导向方向与第一滑槽322的导向空间3221的导向方向相同。第二同步摆臂92安装于第四滑槽326,且第四转轴9221安装于第四滑槽326的导向空间3261。通过第四滑槽326的导向空间3261与第二同步摆臂92的第四转轴9221的配合,能够引导第二同步摆臂92的活动端922于第四滑槽326的滑动方向,使得第二同步摆臂92与第二固定架32之间的相对活动动作更易实现、控制精度更高。
示例性的,第二同步摆臂92的结构可以与第一同步摆臂91的结构大致相同,以简化铰链20的物料种类,降低铰链20的设计难度和成本。其中,第二同步摆臂92与第一同步摆臂91的结构区别之处在于,第一齿轮9113与第二齿轮9213的排布角度不同,以方便彼此啮合。
一些实施例中,如图24和图25所示,铰链20还可以包括第一转接件93和第二转接件94。第一转接件93滑动安装于第一固定架31,第一同步摆臂91的活动端912转动连接第一转接件93,第二转接件94滑动安装于第二固定架32,第二同步摆臂92的活动端922转动连接第二转接件94。第二转接件94的结构可以与第一转接件93的结构相同,以简化铰链20的物料种类,降低铰链20的设计难度和成本。
可以理解的是,如图25所示,在本实施例中,第一固定架31为一体成型的结构件,包括第一连接块311、第二滑槽312以及第三滑槽316。在其一些实施例中,第一固定架31可以包括多个结构件,第一连接块311、第二滑槽312以及第三滑槽316形成在不同的结构件上,本申请对此不做严格限定。如图25所示,在本实施例中,第二固定架32为一体成型的结构件,包括第二连接块321、第一滑槽322以及第四滑槽326。在其一些实施例中,第二固定架32可以包括多个结构件,第二连接块321、第一滑槽322以及第四滑槽326形成在不同的结构件上,本申请对此不做严格限定。
如图25所示,一些实施例中,第一固定架31具有多个紧固孔317,铰链20可以通过多个紧固件将第一固定架31固定于第一壳体10。第二固定架32具有多个紧固孔327,铰链20可以通过多个紧固件将第二固定架32固定于第二壳体30。
一些实施例中,如图15所示,第一传动臂4绕第一转动中心4C转动,也即第一传动臂4与主轴1绕第一转动中心4C转动。第二传动臂6绕第二转动中心6C转动,也即第二传动臂6与主轴1绕第二转动中心6C转动。
请参阅图27,图27是图5所示铰链20的部分结构示意图。
一些实施例中,第一支撑板21固定连接第二传动臂6的滑动端61,第二支撑板22固定连接第一传动臂4的滑动端41。
在本实施例中,第一支撑板21及第二传动臂6组装成一个部件,第二支撑板22及第一传动臂4组装成一个部件,因此第二传动臂6能够直接控制第一支撑板21的运动轨迹,第一 传动臂4能够直接控制第二支撑板22的运动轨迹,使得第一支撑板21、第二支撑板22的运动过程的控制精度高、回差小,从而准确地在折叠装置100的转动过程中实现伸缩,以满足柔性屏200的支撑需求和铰链20的自遮蔽需求。
示例性的,第一支撑板21与两个端部连接组件20a的第二传动臂6均固定;第二支撑板22与两个端部连接组件20a的第一传动臂4均固定。此时,两个端部连接组件20a可以共同带动第一支撑板21和第二支撑板22运动,以降低运动控制难度,提高运动控制精度。
一些实施例中,多个传动臂的滑动端能够通过紧固件与支撑板锁紧固定。紧固件包括但不限于螺钉、螺栓、铆钉、销钉等。多个传动臂的滑动端与支撑板之间还可以设置凹凸配合结构,以提高装配精度和可靠性。
示例性的,请参阅图28,图28是图27所示第一支撑板21的在另一视角下的结构示意图。
如图28所示,第一支撑板21包括板体211和固定于板体211的多个第一凸起212,多个第一凸起212彼此间隔设置。多个第一凸起212用于分别卡接两个端部连接组件20a的第二传动臂6的滑动端61。第一支撑板21可以为一体成型的结构件。
如图28所示,第一支撑板21还可以包括固定于板体211的滑动件214,滑动件214用于与端部连接组件20a的第一固定架31滑动连接,使得第一支撑板21能够更好地随第二传动臂6相对第一固定架31滑动,以提高铰链20的机构可靠性。示例性的,第一滑动件214的数量为两个,两个第一滑动件214分别与两个第一固定架31滑动连接。
在本实施例中,第二支撑板22的结构可以与第一支撑板21的结构相同,以简化铰链20的物料种类,降低铰链20的设计难度和成本。本申请实施例不再赘述第二支撑板22的具体结构。
请一并参阅图5和图29,图29是图2所示折叠装置100的部分结构的示意图。其中,图29所示结构包括第一壳体10、两个端部连接组件20a的第一固定架31。
一些实施例中,第一壳体10靠近铰链20的一侧具有第一固定槽102,第一壳体10包括位于第一固定槽102的第一定位板103,第一定位板103与第一固定槽102的槽底壁间隔设置,第一固定架31位于第一定位板103与第一固定槽102的槽底壁之间,且固定连接第一定位板103。在本实施例中,由于第一固定架31与第一壳体10相互固定,因此第一壳体10与第一固定架31同步运动,铰链20在运动过程中对第一固定架31的运动轨迹的约束,也同样形成对第一壳体10的运动轨迹的约束。
一些实施例中,第一定位板103相对收容槽10b的底面10c下沉以形成第一容纳槽104。第一容纳槽104能够为第一支撑板21提供收容和活动空间,第一容纳槽104的位置设置使得安装于第一容纳槽104的第一支撑板21的支撑面能够与第一壳体10的收容槽10b的底面10c齐平,使得第一支撑板21能够更好地支撑柔性屏200。其中,第一容纳槽104的深度是较浅的,且柔性屏200的非显示侧设有硬度较高的支撑背板,因此当第一支撑板21部分伸出第一容纳槽104时,柔性屏200面向第一容纳槽104的部分不会在用户的按压下发生明显形变,也有利于确保柔性屏200的可靠性。
示例性的,第一定位板103可以包括多个间隔设置的结构,也可以是一个连续的结构,本申请对此不做严格限定。第一固定架31可以通过紧固件与第一定位板103锁紧,紧固件可以是但不限于是螺钉、螺栓、铆钉等结构。在其他一些实施例中,第一固定架31与第一壳体10之间也可以形成其他连接结构,本申请对此不做严格限定。
请一并参阅图5和图30,图30是图2所示折叠装置100的部分结构的示意图。其中, 图30所示结构包括第二壳体30,以及两个端部连接组件20a的第二固定架32。
一些实施例中,第二壳体30靠近铰链20的一侧具有第二固定槽302,第二壳体30包括位于第二固定槽302的第二定位板303,第二定位板303与第二固定槽302的槽底壁间隔设置,第二固定架32位于第二定位板303与第二固定槽302的槽底壁之间,且固定连接第二定位板303。在本实施例中,由于第二固定架32与第二壳体30相互固定,因此第二壳体30随第二固定架32活动,铰链20通过控制第二固定架32的运动轨迹即可控制第二壳体30的运动轨迹。
一些实施例中,第二定位板303相对收容槽30b的底面30c下沉以形成第二容纳槽304。第二容纳槽304能够为第二支撑板22提供收容和活动空间,第二容纳槽304的位置设置使得安装于第二容纳槽304的第二支撑板22的支撑面能够与第二壳体30的收容槽30b的底面30c齐平,使得第二支撑板22能够更好地支撑柔性屏200。其中,第二容纳槽304的深度是较浅的,且柔性屏200的非显示侧设有硬度较高的支撑背板,因此当第二支撑板22部分伸出第二容纳槽304时,柔性屏200面向第二容纳槽304的部分不会在用户的按压下发生明显形变,也有利于确保柔性屏200的可靠性。
示例性的,第二定位板303可以包括多个间隔设置的结构,也可以是一个连续的结构,本申请对此不做严格限定。第二固定架32和第四固定架34可以通过紧固件与第二定位板303锁紧,紧固件可以是但不限于是螺钉、螺栓、铆钉等结构。在其他一些实施例中,第二固定架32与第二壳体30之间也可以形成其他连接结构,本申请对此不做严格限定。
以下结合折叠装置100分别处于展平状态、中间状态及闭合状态时的多张内部结构图,对折叠装置100的结构进行说明。
请一并参阅图31至图36,图31是图2所示折叠装置100的对应第一传动臂4所在位置的剖面结构示意图,图32是图2所示折叠装置100的对应第二传动臂6所在位置的剖面结构示意图,图33是图16所示折叠装置100的对应第一传动臂4所在位置的剖面结构示意图,图34是图16所示折叠装置100的对应第二传动臂6所在位置的剖面结构示意图,图35是图6所示折叠装置100的对应第一传动臂4所在位置的剖面结构示意图,图36是图6所示折叠装置100的对应第二传动臂6所在位置的剖面结构示意图。图31至图36示意出折叠装置100在展平状态向闭合状态转换过程中第一传动臂4和第二传动臂6的位置变化。
如图31所示,第一壳体10与第二壳体30相对展开至展平状态时,第一传动臂4与主轴1大致平行,第一传动臂4的转动端42相对主轴1处于转入位置,第一传动臂4的滑动端41相对第二固定架32处于滑出位置,第一传动臂4远离第二固定架32和第二壳体30,第二固定架32和第二壳体20远离主轴1;第一转动臂5与第一传动臂4联动,第一转动臂5相对主轴1处于伸出位置,第一转动臂5将第一固定架31和第一壳体10推离主轴1。
如图32所示,第一壳体10与第二壳体30相对展开至展平状态时,第二传动臂6与主轴1大致平行,第二传动臂6的转动端62相对主轴1处于转入位置,第二传动臂6的滑动端61相对第一固定架31处于滑出位置,第二传动臂6远离第一固定架31和第一壳体10,第一固定架31和第一壳体10远离主轴1;第二转动臂7与第二传动臂6联动,第二转动臂7相对主轴1处于伸出位置,第二转动臂7将第二固定架32和第二壳体30推离主轴1。
也即,第一壳体10与第二壳体30相对展开至展平状态时,第一传动臂4和第二传动臂6相对主轴1处于转入位置,第一转动臂5和第二转动臂7相对主轴1处于伸出位置,并将第一壳体10和第二壳体30推离主轴1。
如图33所示,第一壳体10与第二壳体30处于中间状态时,第一传动臂4相对主轴1倾斜,第一传动臂4的转动端42相对主轴1处于部分转出/部分转入位置,第一传动臂4的滑动端41相对第二固定架32处于部分滑入/部分滑出位置,第一传动臂4逐渐靠近第二固定架32和第二壳体30,第二固定架32和第二壳体30逐渐靠近主轴1;第一转动臂5与第一传动臂4联动,第一转动臂5相对主轴1处于部分伸入/部分伸出位置,第一转动臂5带动第一固定架31和第一壳体10逐渐靠近主轴1。
如图34所示,第一壳体10与第二壳体30处于中间状态时,第二传动臂6相对主轴1倾斜,第二传动臂6的转动端62相对主轴1处于部分转出/部分转入位置,第二传动臂6的滑动端61相对第一固定架31处于部分滑入/部分滑出位置,第二传动臂6逐渐靠近第一固定架31和第一壳体10,第一固定架31和第一壳体10逐渐靠近主轴1;第二转动臂7与第二传动臂6联动,第二转动臂7相对主轴1处于部分伸入/部分伸出位置,第二转动臂7带动第二固定架32和第二壳体30逐渐靠近主轴1。
也即,第一壳体10与第二壳体30处于中间状态时,第一传动臂4和第二传动臂6相对主轴1处于部分转出/部分转入位置,第一转动臂5和第二转动臂7相对主轴1处于部分伸入位置,并带动第一壳体10和第二壳体30逐渐靠近主轴1。
如图35所示,第一壳体10与第二壳体30相对折叠至闭合状态时,第一传动臂4与主轴1大致垂直,第一传动臂4的转动端42相对主轴1处于转出位置,第一传动臂4的滑动端41相对第二固定架32处于滑入位置,第一传动臂4靠近第二固定架32和第二壳体30,第二固定架32和第二壳体30靠近主轴1;第一转动臂5相对主轴1处于伸入位置,第一转动臂5将第一固定架31和第一壳体10拉近主轴1。
如图36所示,第一壳体10与第二壳体30相对折叠至闭合状态时,第二传动臂6与主轴1大致垂直,第二传动臂6的转动端62相对主轴1处于转出位置,第二传动臂6的滑动端61相对第一固定架31处于滑入位置,第二传动臂6靠近第一固定架31和第一壳体10,第一固定架31和第一壳体10靠近主轴1;第二转动臂7相对主轴1处于伸入位置,第二转动臂7将第二固定架32和第二壳体30拉近主轴1。
也即,第一壳体10与第二壳体30处于相对折叠至闭合状态时,第一传动臂4和第二传动臂6相对主轴1处于转出位置,第一转动臂5和第二转动臂7相对主轴1处于伸入位置,并将第一壳体10和第二壳体30拉近主轴1。
在本申请实施例中,如图31至图36所示,由于第一传动臂4的转动端42转动连接主轴1、滑动端41滑动连接第二固定架32,第二固定架32固定于第二壳体30,第二传动臂6的转动端62转动连接主轴1、滑动端61滑动连接第一固定架31,第一固定架31固定于第一壳体10,因此在第一壳体10与第二壳体30相对转动的过程中,第一壳体10带动第一固定架31相对主轴1转动,第二传动臂6随第一固定架31相对主轴1转动,且第二传动臂6相对第一固定架31滑动,第二壳体30带动第二固定架32相对主轴1转动,第一传动臂4随第二固定架32相对主轴1转动,且第一传动臂4相对第二固定架32滑动,故而折叠装置100能够在展平状态与闭合状态之间自由切换,第一壳体10与第二壳体30能够相对展开至展平状态,以使柔性屏200呈展平形态,以实现大屏显示,第一壳体10与第二壳体30也能够相对折叠至闭合状态,以使折叠电子设备1000便于收纳和携带。此外,第一壳体10与第二壳体30通过铰链20相对折叠至闭合状态时,能够完全合拢,两者之间无缝隙或缝隙较小,使得折叠装置100的外观较为完整,实现外观自遮蔽,应用该折叠装置100的折叠电子设备1000的外观较为完整,有利于提高产品的可靠性和用户的使用体验。
其中,如图35所示,第一壳体10与第二壳体30相对折叠至闭合状态时,主轴1的主内轴15位于主外轴14与第一固定架31及第二固定架32之间。如图31所示,第一传动臂4绕第一转动中心4C转动。示例性的,第一转动中心4C为第一传动臂4的转动端42所对应的主轴1的弧形槽131的圆心。第一传动臂4与主轴1相对转动的第一转动中心4C靠近主内轴15且远离主外轴14、靠近第二固定架32且远离第一固定架31。如图35所示,第二传动臂6绕第二转动中心6C转动。示例性的,第二转动中心6C为第二传动臂6的转动端62所对应的主轴1的弧形槽131的圆心。第二传动臂6与主轴1相对转动的第二转动中心6C靠近主内轴15且远离主外轴14、靠近第一固定架31且远离第二固定架32。
在本实施例中,通过设置第一转动中心4C和第二转动中心6C的位置,使得铰链20更易实现折叠装置100在展平状态向闭合状态变化的过程中的壳体内拉运动、和折叠装置100在闭合状态向展平状态变化的过程中的壳体外推运动,便于实现将柔性屏200的中性层设在柔性盖板201中的变形运动。
如图31所示,由于第一转动臂5的第一端51转动连接第一固定架31、第二端52转动连接第一传动臂4的转动端42,在第一壳体10与第二壳体30相对转动的过程中,第一传动臂4的转动端42带动第一转动臂5的第二端52绕第一转动中心4C转动,形成第一级连杆运动,同时,第一转动臂5的第一端51绕第一转动臂5的第二端52转动,形成第二级连杆运动,因此第一转动臂5的连杆运动相当于二连杆运动。由于第一转动臂5的第二端52转动连接第一传动臂4的转动端42,第一转动臂5的第二端52与第一传动臂4的转动端42同步绕固定点转动,因此第一转动臂5的第一级连杆运动的转动角度与第一传动臂4的转动角度大小相等,方向相反。故而,第一转动臂5与第一传动臂4形成互锁结构,第一转动臂5与第一传动臂4在第一固定架31与第二固定架32之间形成一级铰链,第一转动臂5的运动自由度降为1,使得第一转动臂5和第一传动臂4在铰链20的运动过程中,无虚位、不会发生窜动,提高了铰链20的抗拉强度和可靠性。
如图35所示,由于第二转动臂7的第一端71转动连接第二固定架32、第二端转动连接第二传动臂6的转动端62,在第一壳体10与第二壳体30相对转动的过程中,第二传动臂6的转动端62带动第二转动臂7的第二端72绕第二转动中心6C转动,形成第一级连杆运动,同时,第二转动臂7的第一端71绕第二转动臂7的第二端72转动,形成第二级连杆运动,因此第二转动臂7的连杆运动相当于二连杆运动。由于第二转动臂7的第二端72转动连接第二传动臂6的转动端62,第二转动臂7的第二端72与第二传动臂6的转动端62同步绕固定点转动,因此第二转动臂7的第一级连杆运动的转动角度与第二传动臂6的转动角度大小相等,方向相反。故而,第二转动臂7与第二传动臂6形成互锁结构,第二转动臂7与第二传动臂6在第一固定架31与第二固定架32之间形成一级铰链,第二转动臂7的运动自由度降为1,使得第二转动臂7和第二传动臂6在铰链20的运动过程中,无虚位、不会发生窜动,提高了铰链20的抗拉强度和可靠性。
如图31至图36所示,在第一壳体10与第二壳体30相对展开至展平状态的过程中,第一传动臂4转入主轴1,使得第一转动臂5伸出主轴1,第一转动臂5通过第一固定架31将第一壳体10推离主轴1,第二传动臂6转入主轴1,使得第二转动臂7伸出主轴1,第二转动臂7通过第二固定架32将第二壳体30推离主轴1。
在第一壳体10与第二壳体30相对折叠至闭合状态的过程中,第一传动臂4转出主轴1,使得第一转动臂5伸入主轴1,第一转动臂5通过第一固定架31将第一壳体10拉近主轴1,第二传动臂6转出主轴1,使得第二转动臂7伸入主轴1,第二转动臂7通过第二固定架32 将第二壳体30拉近主轴1。
故而,铰链20能够在第一壳体10与第二壳体30相对展开的过程中,使第一固定架31带动第一壳体10向远离主轴1的方向移动、第二固定架32带动第二壳体30向远离主轴1的方向移动。在第一壳体10与第二壳体30相对折叠的过程中,使第一固定架31带动第一壳体10向靠近主轴1的方向移动、第二固定架32带动第二壳体30向靠近主轴1的方向移动。也即,铰链20能够实现折叠装置100在展平状态向闭合状态变化的过程中的壳体内拉运动、和折叠装置100在闭合状态向展平状态变化的过程中的壳体外推运动,使得折叠装置100在展开或折叠的过程中,能够实现以柔性屏200的柔性盖板201为中性层的变形运动。这能够降低拉扯或挤压柔性屏200的风险,提高柔性屏200的可靠性,使得柔性屏200和折叠电子设备1000具有较长的使用寿命。
如图31所示,在第一壳体10与第二壳体30相对展开至展平状态时,第一支撑板21与第二支撑板22齐平,第一支撑板21搭设在第一固定架31与主轴1之间,第二支撑板22搭设在第二固定架32与主轴1之间,第一支撑板21、主轴1及第二支撑板22能够共同形成对柔性屏200的折弯部2002的完整平面支撑。如图35所示,在第一壳体10与第二壳体30相对折叠至闭合状态时,第一支撑板21堆叠于第一固定架31背离第二固定架32的一侧,第二支撑板22堆叠于第二固定架32背离第一固定架31的一侧,第一支撑板21和第二支撑板22能够分别相对第一壳体10和第二壳体30滑动收拢,使得主轴1露出以形成对柔性屏200的折弯部2002的完整支撑。换言之,铰链20在折叠装置100处于展平状态或闭合状态时,均能够充分支撑柔性屏200的折弯部2002,从而有利于保护柔性屏200,也有利于提高用户的使用体验。
由于第一支撑板21与第一传动臂4的滑动端41相固定,第二支撑板22与第二传动臂6的滑动端61相固定,因此第一传动臂4和第二传动臂6在实现对第一壳体10和第二壳体30的转动动作控制的同时,还实现对第一支撑板21和第二支撑板22的伸缩动作的控制,故而铰链20的集成度高,整体连接关系简单、机构可靠性高。
在本申请实施例中,折叠装置100能够在展平状态向闭合状态变化的过程中实现壳体内拉运动、在闭合状态向展平状态变化的过程中实现壳体外推运动,从而在展开或折叠的过程中,实现以柔性屏200的柔性盖板201为中性层的变形运动,以降低拉扯或挤压柔性屏200的风险,保护柔性屏200,使得柔性屏200的可靠性更高,柔性屏200和折叠电子设备1000具有更长的使用寿命。
并且,将柔性屏200的中性层设置在柔性盖板201中的设计,能与将柔性盖板201的周缘与折叠装置100的壳体固定连接的设计相适应,从而减少柔性屏200在弯折过程中发生错层的风险,提升柔性屏200的可靠性。下文将说明该原理。
图37表示将本申请实施例将中性层设在柔性屏200的柔性盖板201中时,柔性屏200在弯折过程中的应力-截面位置曲线示意图,该示意图例如可通过仿真得到。其中,应力轴代表应力值,应力轴上的0代表应力值为零。应力可以分为拉应力与压应力,应力轴上距离0越远的位置。应力值越大;反之,应力轴上距离0越近的位置,应力值越小。截面位置轴代表柔性屏200的横截面层结构中的不同位置,其中柔性盖板201位于截面位置轴的下端。柔性屏200的显示面板202可以包括多个层结构(例如可以包括基材层、发光器件层,以及连接各层的光学透明胶层),在图37中用多个线框表示。
如图37所示,由于中性层位于柔性盖板201中(例如大致位于柔性盖板201背离显示面板202的外表面201c),中性层上的应力基本为零。柔性屏200弯折过程中,位于中性层以 上(“以上”是以图37视角为例)的截面位置均受到压缩,因而受到压应力。距离中性层越远的截面位置,压应力越大。图37所示的应力-截面位置曲线比较陡峭,柔性屏200的各层间的应力差值较小。
本申请实施例中,将柔性盖板201的至少部分周缘与第一壳体10上的边框10a以及第二壳体30上的边框30a固定连接时,当第一壳体10与第二壳体30合拢或展开时,第一壳体10与第二壳体30直接驱动柔性盖板201固定至边框的部分弯折,弯折运动由柔性盖板201起依次向显示面板202的各个层结构传递。由于本实施例的柔性屏200具有图37所示的应力-截面位置曲线特性,柔性屏200的各层间的应力差值较小,因而在弯折运动层层传递时,柔性屏200中的光学透明胶层的粘结力足以抵抗各层之间因长度变化而产生的滑移,使得各层之间不易滑移错层。所以,将柔性屏200的中性层设置在柔性盖板201中的设计,能与将柔性盖板201的至少部分周缘与折叠装置100的壳体固定连接的设计相适应,从而减少柔性屏200在弯折过程中发生错层的风险,提升柔性屏200的可靠性。
相反的,图38表示常规折叠电子设备的柔性屏200’在弯折过程中的应力-截面位置曲线示意图。在该常规折叠电子设备中,中性层设在柔性屏200’的显示面板202’中,显示面板202’背离柔性盖板201’的表面202c’与壳体固定连接。由图38可知,柔性屏200’的应力-截面位置曲线较为平缓,柔性屏200’的各层间的应力差值较大。当壳体合拢或展开时,壳体直接驱动显示面板202’弯折,弯折运动由显示面板202’的表面202c’起向各个层结构传递。由于柔性屏200’的各层间的应力差值较大,因而在弯折运动层层传递时,柔性屏200’中的光学透明胶层的粘结力往往不足以抵抗各层之间因长度变化而产生的滑移,使得各层之间容易滑移错层。
当折叠装置驱动柔性屏形变时,柔性屏由于自身结构和材料性质,会产生反弹力,该反弹力在折叠装置折叠时阻碍该折叠动作,在折叠装置展开时会加速该展开动作。为保证产品体验,需要对该反弹力进行控制。对于柔性屏而言,柔性盖板中的应力对该反弹力贡献最大。
对比图37和图38所示,由于实施例一的柔性盖板201中的应力较小,而常规的柔性盖板201’中的应力较大,因而实施例一的柔性屏200的反弹力较小,而常规的柔性屏200’的反弹力较大。因此,实施例一通过将柔性屏200的中性层设置在柔性盖板201中,还能减小反弹力,保证产品体验。
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应以所述权利要求的保护范围为准。
Claims (10)
- 一种折叠电子设备,其特征在于,包括第一壳体、第二壳体和柔性屏;所述第一壳体与所述第二壳体能够相对转动以展开或者折叠,所述第一壳体的边缘和/或所述第二壳体的边缘具有边框,所述边框所围的区域形成收容槽;所述柔性屏包括柔性盖板与显示面板,所述柔性盖板与所述显示面板贴合,所述柔性盖板的边缘超出所述显示面板的边界;所述柔性屏安装于所述第一壳体与所述第二壳体,其中,所述显示面板的至少部分位于所述收容槽内,所述柔性盖板的边缘的内表面的至少一部分与所述边框固定连接;所述柔性屏的中性层位于所述柔性盖板中。
- 根据权利要求1所述的折叠电子设备,其特征在于,所述中性层位于所述柔性盖板背离所述显示面板的表面。
- 根据权利要求1或2所述的折叠电子设备,其特征在于,所述边框包括第一台阶与第二台阶,所述第一台阶与所述第二台阶连接,所述第一台阶位于所述第二台阶的内周,所述第一台阶所围的区域形成所述收容槽,所述第一台阶的台阶面低于所述第二台阶的台阶面;所述柔性盖板的边缘的内表面的至少一部分与所述第一台阶的台阶面固定连接,所述柔性盖板背离所述显示面板的表面不高于所述第二台阶的台阶面。
- 根据权利要求3所述的折叠电子设备,其特征在于,所述显示面板与所述收容槽的侧面具有间隔;和/或,所述第一台阶的高度为0.4mm-1.0mm;和/或,所述第一台阶的宽度为0.6mm-1.2mm。
- 根据权利要求1-4任一项所述的折叠电子设备,其特征在于,所述柔性盖板的边缘的内表面的至少一部分与所述边框通过防水胶粘接。
- 根据权利要求5所述的折叠电子设备,其特征在于,所述折叠电子设备包括铰链,所述铰链连接所述第一壳体与所述第二壳体,所述铰链用于产生机构运动,使所述第一壳体与所述第二壳体能够相对转动以展开或者折叠;所述铰链包括第一端部挡块与第二端部挡块,所述第一端部挡块与所述第二端部挡块分别位于所述第一壳体的转动轴线方向上的相对两端;所述柔性盖板的相对两侧边缘分别设有第一缺口和第二缺口,所述第一端部挡块位于所述第一缺口中,所述第二端部挡块位于所述第二缺口中。
- 根据权利要求1-6任一项所述的折叠电子设备,其特征在于,所述折叠电子设备包括铰链,所述铰链连接所述第一壳体与所述第二壳体,所述铰链用于产生机构运动,使所述第一壳体与所述第二壳体能够相对转动以展开或者折叠;所述铰链包括主轴、第一固定架、第二固定架、第一传动臂、第一转动臂、第二传动臂以及第二转动臂;所述第一壳体与所述第二壳体分别位于所述主轴的相对两侧;所述第一固定架固定于所述第一壳体,所述第二固定架固定于所述第二壳体;所述第一传动臂包括滑动端和转动端,所述第一传动臂的滑动端滑动连接所述第二固定架,所述第一传动臂的转动端转动连接所述主轴;所述第一转动臂的一端转动连接所述第一传动臂的转动端、另一端转动连接所述第一固定架;所述第二传动臂包括滑动端和转动端,所述第二传动臂的滑动端滑动连接所述第一固定架,所述第二传动臂的转动端转动连接所述主轴;所述第二转动臂的一端转动连接所述第二 传动臂的转动端、另一端转动连接所述第二固定架。
- 根据权利要求7所述的折叠电子设备,其特征在于,所述主轴包括主内轴和固定于所述主内轴的主外轴,所述第一壳体与所述第二壳体处于折叠状态时,所述主内轴位于所述主外轴与所述第一固定架及所述第二固定架之间;所述第一传动臂绕第一转动中心转动,所述第一转动中心靠近所述主内轴且远离所述主外轴,所述第一转动中心靠近所述第二固定架且远离所述第一固定架;所述第二传动臂绕第二转动中心转动,所述第二转动中心靠近所述主内轴且远离所述主外轴,所述第二转动中心靠近所述第一固定架且远离所述第二固定架。
- 根据权利要求7或8所述的折叠电子设备,其特征在于,所述铰链包括第一支撑板和第二支撑板,所述第一支撑板固定连接所述第二传动臂的滑动端,所述第二支撑板固定连接所述第一传动臂的滑动端;所述第一壳体与所述第二壳体处于展开状态时,所述第一支撑板与所述第二支撑板齐平,所述第一支撑板搭设在所述第一固定架与所述主轴之间,所述第二支撑板搭设在所述第二固定架与所述主轴之间;所述第一壳体与所述第二壳体处于折叠状态时,所述第一支撑板堆叠于所述第一固定架背离所述第二固定架的一侧,所述第二支撑板堆叠于所述第二固定架背离所述第一固定架的一侧。
- 根据权利要求9所述的折叠电子设备,其特征在于,所述主轴具有支撑面;所述第一壳体与所述第二壳体处于折叠状态时,所述主轴的支撑面相对所述第一支撑板及所述第二支撑板露出,所述主轴的支撑面呈弧形。
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CN209914239U (zh) * | 2019-02-20 | 2020-01-07 | Oppo广东移动通信有限公司 | 电子设备 |
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CN111599268A (zh) * | 2019-02-20 | 2020-08-28 | 华为技术有限公司 | 柔性显示盖板、显示面板及显示装置 |
CN111692196A (zh) * | 2019-03-15 | 2020-09-22 | 华为技术有限公司 | 一种转轴机构及移动终端 |
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CN111614806A (zh) * | 2020-04-15 | 2020-09-01 | 华为技术有限公司 | 折叠装置及电子设备 |
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