CN218882774U

CN218882774U - Foldable electronic equipment

Info

Publication number: CN218882774U
Application number: CN202222297989.XU
Authority: CN
Inventors: 李董燕; 靳林芳; 龙浩晖; 钟镭; 周肖; 潘姣
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2022-08-30
Filing date: 2022-08-30
Publication date: 2023-04-18
Anticipated expiration: 2032-08-30

Abstract

The application relates to the technical field of electronic equipment, and provides a foldable electronic equipment, including: the display module comprises a first body, a second body, a rotating shaft mechanism, a display module and a flexible heat dissipation module, wherein the first body and the second body are rotationally connected through the rotating shaft mechanism so as to be switched between a folding position and an unfolding position, and the rotating shaft mechanism extends along a first direction; a crack is respectively arranged between the first machine body and the rotating shaft mechanism and between the second machine body and the rotating shaft mechanism; the display module comprises a flexible display screen and a supporting piece, and the supporting piece is used for supporting the flexible display screen; wherein, the flexible heat radiation module and the supporting piece are integrally formed to limit the flexible heat radiation module to be clamped into the crack; or a clamping preventing piece is arranged between the flexible heat dissipation module and any one or more of the rotating shaft mechanism and the supporting piece so as to limit the flexible heat dissipation module from being clamped into the crack. The electronic equipment provided by the embodiment of the application can effectively avoid the problem that the heat dissipation module is clamped in the crack at the rotating shaft, and large-area cross-shaft heat transfer is realized.

Description

Foldable electronic equipment

Technical Field

The present application relates to the field of electronic devices, and more particularly, to a foldable electronic device.

Background

As the technology of flexible folding screens matures, flexible folding is a trend of future terminal product applications. Folding terminals (such as folding mobile phones, folding tablets, folding computers and other electronic devices) gradually occupy the mainstream market of high-end terminal models. Due to the requirements of more 5G electronic products on signal and data transmission and processing, the heat productivity of electronic components, batteries, displays and other parts in the folding terminal is increased rapidly, and higher requirements are put forward on the heat dissipation of the terminal products.

The folding terminal (such as a folding mobile phone) can be bent for hundreds of thousands or even millions of times in use, the heat conductivity coefficient of the conventional copper aluminum and the alloy materials thereof is 100W/(m.K) to 400W/(m.K), the heat pipe is a VC heat dissipation device, and the heat conductivity coefficient is 5000W/(m.K) to 20000W/(m.K), so that the folding terminal cannot meet the requirement of 20-million times of bending deformation.

The foldable terminal is generally internally provided with a graphite heat dissipation module to realize heat dissipation of the foldable terminal, when the graphite heat dissipation module is attached to a middle frame of the foldable terminal, a middle shaft material in the bent foldable terminal is repeatedly stressed, stretched or compressed, a high polymer elastic material is easy to creep, and a graphite material (with a heat conductivity coefficient of 1000W/(m.K) to 2000W/(m.K)) is elongated, can be plastically deformed and clamped into a crack of a rotating shaft of the foldable terminal to generate obvious deformation, and jacks up a support piece (a bamboo book) of the display module, so that the display module has failure problems of light shadow, black spots, broken bright spots and the like in a folding area.

Disclosure of Invention

The embodiment of the application provides a foldable electronic equipment, can effectively avoid the high heat conduction heat dissipation module to buckle for a long time (for example tens of thousands of times of buckling or even hundreds of thousands of times of buckling) the long deformation that appears, the heat dissipation module is by the problem in the crack of clip pivot department, realizes that the axle is crossed to the large tracts of land is heat-transferred.

In order to achieve the above purpose, the embodiments of the present application adopt the following technical solutions:

in a first aspect, an embodiment of the present application provides a foldable electronic device, including: the display module comprises a first machine body, a second machine body, a rotating shaft mechanism, a display module and a flexible heat dissipation module; the first machine body and the second machine body are rotationally connected through a rotating shaft mechanism so as to be switched between a folding position and an unfolding position, and the rotating shaft mechanism extends along a first direction; a crack is respectively arranged between the first machine body and the rotating shaft mechanism and between the second machine body and the rotating shaft mechanism; the display module comprises a flexible display screen and a supporting piece, and the supporting piece is used for supporting the flexible display screen; wherein, the flexible heat radiation module and the supporting piece are integrally formed to limit the flexible heat radiation module to be clamped into the crack; or a clamping prevention piece is arranged between the flexible heat dissipation module and any one or more of the rotating shaft mechanism and the supporting piece so as to limit the flexible heat dissipation module from being clamped into the gap.

Flexible heat dissipation module and support piece integrated into one piece, perhaps, under the effect of preventing pressing from both sides the piece, can restrict flexible heat dissipation module by the centre gripping crack, avoid flexible heat dissipation module crease and crease accumulation, reduce the possibility that causes display failure problems such as top screen, shadow, black spot.

In one possible implementation of the first aspect, the flexible heat dissipation module is connected to the support by a hot pressing process to form the support laminate.

In one possible implementation of the first aspect, the flexible heat dissipation module includes a heat dissipation layer and a fiber layer, and the support member, the fiber layer, and the heat dissipation layer are stacked and thermally compressed.

In one possible implementation of the first aspect, the material of the heat dissipation layer is any one of graphene film, silver, copper, aluminum, steel, and boron nitride.

In one possible implementation of the first aspect described above, the thickness of the heat dissipation layer is 1 μm to 1mm.

In one possible implementation of the first aspect described above, the heat dissipation layer has an elastic modulus in the range of 0.5MPa to 500GPa.

In one possible implementation of the first aspect, the support laminate is provided with an opening to allow the support laminate to be folded, and the folding area of the support laminate corresponds to the spindle mechanism.

In one possible implementation of the first aspect, the support laminate comprises a bent portion and a non-bent portion adjoining the bent portion, the bent portion being provided with an opening.

In one possible implementation of the first aspect described above, the fibrous layer comprises a fibrous reinforcement and a matrix cured to the fibrous reinforcement.

In one possible implementation of the first aspect, the fiber reinforcement includes any one of carbon fiber, glass fiber, quartz fiber, and organic fiber.

In one possible implementation of the first aspect described above, the matrix comprises a resin matrix or a metal matrix.

In one possible implementation of the above first aspect, the thickness of the fiber layer is 10 μm to 1mm.

In one possible implementation of the first aspect, the anti-pinch member is a soft rubber, and the first surface of the flexible heat dissipation module facing the support member is bonded to the support member through the soft rubber; or the second surface of the flexible heat dissipation module, which is back to the support piece, is bonded with the rotating shaft mechanism through soft glue.

In one possible implementation of the first aspect, the flexible heat dissipation module includes a static area, and the static area of the flexible heat dissipation module is relatively static with respect to the hinge mechanism during switching between the folded position and the unfolded position of the first body and the second body.

In a possible implementation of the first aspect, the static area of the flexible heat dissipation module faces the first surface of the support member and is bonded to the support member by soft glue; or the second surface of the static area of the flexible heat dissipation module, which is back to the support piece, is bonded with the rotating shaft mechanism through soft glue.

In a possible implementation of the first aspect, the rotating shaft mechanism includes a middle door panel, a first side door panel and a second side door panel, the middle door panel, the first side door panel and the second side door panel extend along a first direction, the first side door panel and the second side door panel are located on two sides of the middle door panel in the first direction, a first gap exists between the first side door panel and the first body, a second gap exists between the first side door panel and the middle door panel, a third gap exists between the middle door panel and the second side door panel, and a fourth gap exists between the second side door panel and the second body;

in the unfolding position, the middle door plate, the first side door plate and the second side door plate are used for supporting the display module;

in the folding position, the middle door plate, the first side door plate and the second side door plate enclose a space for accommodating the bending part of the display module;

in the process of switching the first machine body and the second machine body between the folding position and the unfolding position, the position of the first machine body relative to the first side door panel is unchanged, the position of the second machine body relative to the second side door panel is unchanged, the positions of the first machine body and the second machine body relative to the middle door panel are changed, and the static area of the flexible heat dissipation module and the middle door panel are static relatively;

the flexible glue limits the flexible heat dissipation module to be clamped into any one of the first crack, the second crack, the third crack and the fourth crack.

In one possible implementation of the first aspect, soft glue is provided between the quiet zone and any one or more of the middle door panel, the first side door panel, and the second side door panel.

In one possible implementation of the first aspect, the anti-pinch member is an elastic anti-pinch film covering the nip.

In a possible implementation of the first aspect, the area outside the static area of the flexible heat dissipation module is respectively glued to the first body and the second body by the connection glue; or the area outside the static area of the flexible heat dissipation module is glued with the support piece through connecting glue; the connecting glue and the soft glue are positioned on the same side of the flexible heat dissipation module.

In a possible implementation of the first aspect, the supporting member is provided with a plurality of through holes, and an elastic anti-pinching film is disposed between a region corresponding to the plurality of through holes of the supporting member and the flexible heat dissipation module, or elastic colloid is filled in the plurality of through holes.

In one possible implementation of the first aspect described above, the soft glue is a transparent optical glue material.

In one possible implementation of the first aspect described above, the transparent optical glue material is an optically transparent glue OCA.

Drawings

Fig. 1 illustrates a perspective view of a folding handset, according to some embodiments of the present application;

FIG. 2 illustrates a schematic structural view at a hinge of a folding handset, according to some embodiments of the present application;

FIG. 3 illustrates a first schematic structural diagram of a display module in a foldable handset, according to some embodiments of the present application;

FIG. 4 illustrates a first schematic structural diagram of a flexible heat dissipation module in a foldable phone, according to some embodiments of the present disclosure;

FIG. 5 illustrates a second schematic structural view of a flexible heat dissipation module in a foldable phone, according to some embodiments of the present application;

FIG. 6a illustrates a schematic view of a hot-pressing process of a display module and a flexible heat dissipation module, according to some embodiments of the present application;

FIG. 6b shows a schematic view of a fiber weave pattern, according to some embodiments of the present application;

FIG. 7 illustrates a first schematic structural view of a support laminate in a display module, according to some embodiments of the present disclosure;

FIG. 8 illustrates a second schematic structural view of a display module in a foldable handset, according to some embodiments of the present application;

figure 9 illustrates a second structural view of a support laminate in a display module, according to some embodiments of the present application;

FIG. 10 illustrates a first connection diagram of a flexible heat dissipation module and a hinge mechanism of a foldable handset, according to some embodiments of the present application;

FIG. 11 illustrates a second connection diagram of a flexible thermal module and a hinge mechanism of a foldable phone, according to some embodiments of the present application;

fig. 12 illustrates a first connection diagram of a flexible heat dissipation module and a support member in a foldable handset, according to some embodiments of the present application;

FIG. 13 illustrates a second connection diagram of a flexible thermal module and a support member in a foldable phone, according to some embodiments of the present application;

FIG. 14 illustrates a third exemplary connection between a flexible thermal module and a hinge mechanism of a foldable handset, in accordance with certain embodiments of the present application;

FIG. 15 illustrates a fourth exemplary connection of a flexible thermal module to a hinge mechanism of a foldable handset, in accordance with certain embodiments of the present application;

FIG. 16 illustrates a fifth exemplary connection of a flexible thermal module to a hinge mechanism in a foldable handset, in accordance with certain embodiments of the present application;

fig. 17 illustrates a third connection diagram of a flexible thermal module and a support member in a folding handset, according to some embodiments of the present application;

fig. 18 illustrates a structural schematic of a support in a folding handset, according to some embodiments of the present application.

Detailed Description

Hereinafter, specific embodiments of the present application will be described in detail with reference to the accompanying drawings.

The embodiment of the application provides a folding electronic equipment, can effectively avoid the long deformation that appears in the high heat conduction heat dissipation module is buckled for a long time, the easy problem in the crack of double-in pivot department of heat dissipation module realizes the heat transfer of crossing the axle by a large scale.

The embodiment of the application provides a foldable electronic device using a heat dissipation module. Specifically, the electronic device includes any device having a foldable screen function, such as a mobile phone, a tablet computer, a Personal Digital Assistant (PDA), a notebook computer, an in-vehicle computer, a foldable display device, a foldable display screen, and a wearable device.

For convenience of description, the following description will be given by taking an electronic device as an example of a foldable mobile phone, and the foldable mobile phone of the present application will be described below with specific embodiments.

Referring to fig. 1 and fig. 2, fig. 1 shows a perspective view (an unfolded state) of a folding mobile phone 1 according to an embodiment of the present application, and fig. 2 shows a schematic structural view at a position of a hinge mechanism 30 of the folding mobile phone 1 according to the embodiment of the present application.

As shown in fig. 1 and fig. 2, the foldable mobile phone 1 includes a first body 10 (also referred to as a left middle frame), a second body 20 (also referred to as a right middle frame), a hinge mechanism 30, a display module 40, and a flexible heat dissipation module 50.

Wherein the first body 10 and the second body 20 are rotatably connected by a hinge mechanism 30 to be switched between a folded position and an unfolded position (shown in fig. 1). The first body 10 and the second body 20 extend along the length direction (shown in the X direction in fig. 1) of the foldable mobile phone 1, and extend along the width direction (shown in the Y direction in fig. 1 and 2) of the foldable mobile phone 1 on opposite sides of the rotating shaft mechanism 30. Illustratively, the hinge mechanism 30 extends along the length of the folding handset 1. Illustratively, the length direction and the width direction of the folding mobile phone 1 are perpendicular to each other.

Along the thickness direction (shown in the Z direction in fig. 1) of the foldable mobile phone 1, the flexible heat dissipation module 50 is disposed between the display module 40 and the first body 10, the second body 20, and the hinge mechanism 30. That is, along the thickness direction of the flexible heat sink module 50, the display module 40 is located at one side of the flexible heat sink module 50, and the first body 10, the second body 20 and the hinge mechanism 30 are located at the other side of the flexible heat sink module 50. Illustratively, the flexible heat dissipation module 50 is a graphene heat dissipation module. When the foldable mobile phone 1 is in the unfolded position, the first body 10, the second body 20 and the hinge mechanism 30 are used for bearing the display module 40, so that the display module 40 is kept as flat as possible during the use process, and the non-display surface of the display module 40 is protected.

As shown in fig. 3, the display module 40 according to the embodiment of the present application includes a flexible display 41 and a support 43 (also referred to as a bamboo book), and the flexible display 41 and the support 43 are stacked along a thickness direction (shown in a Z direction in fig. 3) of the foldable mobile phone 1 and are bonded by an adhesive tape 42. That is, along the thickness direction of the display module 40, the flexible display 41, the adhesive tape 42, and the support 43 are stacked, and the support 43 is used for supporting the flexible display 41.

With continued reference to fig. 1 and fig. 2, the hinge mechanism 30 of the embodiment of the present application includes a middle door panel 31, a first side door panel 32, and a second side door panel 33, where the middle door panel 31, the first side door panel 32, and the second side door panel 33 respectively extend along the length direction of the folding mobile phone 1, and the first side door panel 32 and the second side door panel 33 are respectively located at two sides of the middle door panel 31 in the length direction. Illustratively, the first body 10 and the first side door panel 32 are fixedly connected by screws, and the second body 20 and the second side door panel 33 are fixedly connected by screws. That is, the first body 10 and the first side door panel 32 can be rotated in synchronization, and the second body 20 and the second side door panel 33 can be rotated in synchronization.

A first gap A1 exists between the first side door panel 32 and the first body 10, a second gap A2 exists between the first side door panel 32 and the middle door panel 31, a third gap A3 exists between the middle door panel 31 and the second side door panel 33, and a fourth gap A4 exists between the second side door panel 33 and the second body 20. Illustratively, the first, second, third and fourth seams A1, A2, A3, A4 each extend in a length direction.

When the folding mobile phone 1 is in the unfolding position, the middle door panel 31, the first side door panel 32 and the second side door panel 33 are used for supporting the display module 40; when the folding cellular phone 1 is in the folded position, the middle door panel 31, the first side door panel 32 and the second side door panel 33 enclose a space (not shown) for accommodating the bent portion of the display module 40. In the process of bending the folding mobile phone 1, the movement track of the folding mobile phone is bent in a water drop shape, so that a smaller bending angle of the screen is realized, and a better protection effect is achieved.

In the process of switching the foldable mobile phone 1 from the unfolded position to the folded position, for example, when the left middle frame is operated to rotate clockwise (the direction N in fig. 1 and 2 shows the rotation direction), and the right middle frame is operated to rotate counterclockwise (the direction M in fig. 1 and 2 shows the rotation direction), the display module 40 and the flexible heat dissipation module 50 may bend.

In the bending process of the folding machine, the middle frame (the first machine body 10 and the second machine body 20) and the three door panels (the middle door panel 31, the first side door panel 32 and the second side door panel 33) form four door panel cracks (a first crack A1, a second crack A2, a third crack A3 and a fourth crack A4).

In the process of switching the first body 10 and the second body 20 between the folded position and the unfolded position, the position of the first body 10 relative to the first side door panel 32 is unchanged; the position of the second body 20 relative to the second side door panel 33 is unchanged; the positions of the first body 10 and the second body 20 relative to the middle door panel 31 are changed, and the middle area of the flexible heat dissipation module 50 is stationary relative to the middle door panel 31.

That is, as the folding cellular phone 1 is folded and unfolded, the widthwise dimensions of the first and fourth slits A1 and A4 are not changed, and the widthwise dimensions of the second and third slits A2 and A3 are changed. When the folding mobile phone 1 is in the unfolded position, the sizes of the second gap A2 and the third gap A3 in the width direction are the smallest, and when the folding mobile phone 1 is in the folded position, the sizes of the second gap A2 and the third gap A3 are the largest. The flexible heat sink module 50 includes a static area, and the static area of the flexible heat sink module 50 is static relative to the hinge mechanism 30 during the switching between the folded position and the unfolded position of the first body 10 and the second body 20. Illustratively, the rest area of the flexible thermal module 50 is an area corresponding to the middle door panel 31 of the hinge mechanism 30.

In the production, for example, the process of pressure maintaining of the covered door, the jig will push the flexible heat dissipation module 50 into the four door panel seams when the cover is closed; when the cover is opened, the flexible heat dissipation module 50 is clamped by the crack. Or, the flexible heat dissipation module 50 is clamped into the four door panel seams by an accidental external force when the user folds the mobile phone 1. Under above two kinds of scenes, constantly opening and shutting the use, all can lead to flexible thermal module 50 crease, cause display failure problems such as top screen, shadow, black spot.

To this end, the solution provided by the embodiment of the present application includes the following ways: 1) The cross-shaft heat dissipation layer and the screen support piece are integrally designed; 2) Soft rubber is arranged in a static area of the door panel crack and/or the center of the rotating shaft, when the flexible heat dissipation module is clamped in the door panel crack in bending, the software provides limit and tension to pull the flexible heat dissipation module out of the door panel crack, so that the accumulation of creases and folds is avoided; 3) An elastic anti-pinch film is arranged at the crack of the door panel to prevent the flexible heat dissipation module from being clamped into the crack of the door panel.

The solution of the integrated design of the cross-axle heat dissipation layer and the screen support member is described first.

As shown in fig. 4, the flexible heat dissipation module 50 of the embodiment of the present application includes a heat dissipation layer 51 and a fiber layer 52. Two fiber layers 52 and one heat dissipation layer 51 are shown in fig. 4, and the heat dissipation layer 51 is laminated on the two fiber layers 52 in the thickness direction (shown in the Z direction in fig. 4). The present application does not limit the arrangement of the heat dissipation layer 51 and the fiber layer 52. For example, fig. 5 (a) shows three fiber layers 52 and one heat dissipation layer 51, and the heat dissipation layer 51 is laminated on the three fiber layers 52 in the thickness direction (shown in the Z direction in fig. 5). Fig. 5 (b) shows two fiber layers 52, two heat dissipation layers 51, and a pattern metal layer 53, and the heat dissipation layer 51, the fiber layers 52, the metal layer 53, the fiber layers 52, and the heat dissipation layer 51 are stacked in the thickness direction (shown in the Z direction in fig. 5).

It should be noted that fig. 4 and fig. 5 are only used to illustrate the structural form of the flexible heat dissipation module 50, and in some possible embodiments, the flexible heat dissipation module 50 may include other numbers of heat dissipation layers 51, fiber layers 52, metal layers 53, and other layered structures, the arrangement form of each layered structure is not limited, and all the arrangement forms capable of forming a heat dissipation module with a heat dissipation function belong to the protection scope of the embodiment of the present application.

In the embodiment of the present application, the flexible heat dissipation module 50 and the supporting member 43 are integrally formed. After the flexible heat dissipation module 50 and the support member 43 are integrally designed, the flexible heat dissipation module 50 can be limited from being clamped into a crack, the accumulation of creases and creases of the flexible heat dissipation module 50 is avoided, and the possibility of causing display failure problems such as top screen, light shadow, black spots and the like is reduced.

In some possible embodiments, the flexible heat dissipation module 50 is connected to the support 43 of the display module 40 by a hot pressing process to form a support laminate 61 (e.g., the structure shown in fig. 6 a). That is, the flexible heat dissipation module 50 and the support 43 of the display module 40 are thermally pressed to form a composite board. For example, referring to fig. 6a, (a) the support 43 of the display module 40 and the heat dissipation layer 51 of the flexible heat dissipation module 50 are stacked and hot-pressed (fig. 6a, (a) shows a hot-pressing direction), forming a support laminate 61 (as shown in fig. 6a, (b)). That is, the support 43, the fiber layer 52, and the heat dissipation layer 51 are stacked and thermally press-connected.

In some possible embodiments, the thermoforming process of the support laminated sheet 61 is as follows: selecting fibers and a matrix, and forming a single-layer composite material (prepreg, namely a single-layer fiber layer 52) through pressing; then, different heat dissipation layers 51 and fiber layers 52 are laid according to different requirements (for example, the laying modes shown in fig. 4 and 5); after laminating the heat dissipation layer 51, the fiber layer 52 and the prepreg, a support laminate 61 (for example, the structure shown in fig. 6 a) is formed by hot pressing; the material is again partially cut, for example by laser cutting, CNC (Computer numerical control), etching, etc., so that the support laminated plate 61 can be bent; after the partial cutting, because the radiating fins are brittle and the fins are likely to have raised edges, the secondary hot pressing solidification is carried out, and the oil removal and the catalysis are carried out through acid washing (so that the bonding between layers is firmer); after cleaning, electroplating is carried out to realize electric conduction, and after washing and drying, the supporting piece 43 (comprising the heat dissipation layer 51) capable of being attached to the display screen is formed finally. As shown in fig. 8, the support laminate 61 is attached to the flexible display 41 by the adhesive tape 42.

In some possible embodiments, the material of the heat dissipation layer 51 is any one of graphene film, silver, copper, aluminum, steel, and boron nitride. Illustratively, the thickness of the heat dissipation layer 51 is 1 μm to 1mm. The corrugated shaft-crossing graphite heat dissipation module is ultrathin in thickness. Illustratively, the elastic modulus of the heat dissipation layer 51 is between 0.5MPa and 500GPa.

In some possible embodiments, the fibrous layer 52 includes fiber reinforcement and a matrix cured to the fiber reinforcement. That is, a single layer composite (prepreg) is formed by curing a fiber reinforcement and a matrix. Illustratively, the thickness of the fiber layer 52 is 10 μm to 1mm.

Illustratively, the fiber reinforcement includes any one of continuous fibers such as carbon fibers, glass fibers, quartz fibers, and organic fibers. The fiber arrangement may be a unidirectional, two-dimensional weave, three-dimensional weave, etc., for example, the two-dimensional weave may be a plain weave (shown in fig. 6b (a)), a twill weave (shown in fig. 6b (b)), a satin weave (shown in fig. 6b (c)), etc. The fibers may also be short fibers such as chopped glass fibers, carbon fibers, asbestos fibers, and the like. Particle reinforcements such as metal microspheres, glass microspheres, and the like. Wherein, the volume fraction of the reinforcement determines the rigidity of the single-layer composite material, and the volume fraction range is 10-90%.

Illustratively, the above-mentioned matrix includes a resin matrix or a metal matrix. Wherein, the resin matrix includes but is not limited to phenolic aldehyde, epoxy resin, nylon and the like, and the metal matrix includes but is not limited to aluminum matrix, magnesium matrix, copper matrix, titanium matrix, high temperature alloy matrix, intermetallic compound matrix, refractory metal matrix and the like.

Fig. 7 shows a first structural view of the supporting laminate 61, fig. 8 shows a first structural view of the display module 40, and fig. 9 shows an opening view of the supporting laminate 61. As shown in fig. 7, the supporting sheet laminate 61 includes two flat regions on both sides and two structure-thinning regions (indicated by a region B in fig. 8) between the flat regions on both sides, with an open region provided therebetween. Illustratively, the two structure detailing areas of the support laminate 61 correspond to the positions of the above-described first side door panel 32 and second side door panel 33 of the folding cellular phone 1, and the opening area of the support laminate 61 corresponds to the position of the above-described middle door panel 31 of the folding cellular phone 1.

That is, after the hole-opened region of the support laminated plate 61 is opened, the support laminated plate 61 can be bent, and the two structure thinning regions and the hole-opened region of the support laminated plate 61 can be bent. That is, the two structure thinning regions and the open hole region constitute the bent portion of the support laminated plate 61, the two flat regions constitute the non-bent portion of the support laminated plate 61, and the bent portion is provided with the open hole 611. Fig. 9 shows two openings 611 of the open area of the support laminate 61. One skilled in the art will appreciate that the aperture area is not limited to two apertures 611, and in some possible embodiments, the number of apertures 611 of the aperture area is one, three, four, etc. The hole-forming means such as laser cutting of the supporting laminated plate 61 is for achieving the bending performance of the supporting laminated plate 61.

Referring to fig. 10 to 13, fig. 10 and 11 respectively show that a clip prevention member (e.g., a soft rubber 83) is disposed between the flexible heat dissipation module 50 and the rotation shaft mechanism 30, and fig. 12 and 13 respectively show that a clip prevention member (e.g., a soft rubber 83) is disposed between the flexible heat dissipation module 50 and the supporting member 43. After the anti-clip member is disposed, the anti-clip member can limit the flexible heat dissipation module 50 from being clipped into the door panel crack (for example, the first crack A1, the second crack A2, the third crack A3, and the fourth crack A4) between the hinge mechanism 30 and the middle frame.

Illustratively, the anti-clipping member is soft glue 83, and the soft glue 83 is, for example, a transparent optical glue material. Illustratively, the transparent optical glue material is Optically Clear Adhesive OCA (optical Clear Adhesive). OCA is a special adhesive used to bond transparent optical elements. The adhesive has the characteristics of colorless transparency, light transmittance of over 90 percent, good bonding strength, capability of being cured at room temperature or middle temperature, low curing shrinkage rate and the like. In addition, the Young modulus of the foam cotton glue and the like which is less than or equal to 1Mpa can also be used as soft glue to be applied to the embodiment.

As shown in fig. 10 and 11, a first surface of the flexible heat dissipation module 50 facing the support 43 is adhered to the rotation shaft mechanism 30 by a soft glue 83. Illustratively, the middle door panel 31, the first side door panel 32 and the second side door panel 33 in the rotating shaft mechanism 30 are respectively bonded to the flexible heat dissipation module 50 through soft glue 83. That is, the bending region of the flexible heat dissipation module 50 is bonded to the rotation shaft mechanism 30 through the soft glue 83.

That is, the soft rubber 83 is provided in the rest areas (the first side door panel 32 and the second side door panel 33) on both sides of the door panel crack and in the center (the middle door panel 31) of the pivot mechanism 30. Once the flexible heat dissipation module 50 (for example, made of graphite material) is sandwiched between the door panel seams, the foldable mobile phone 1 is unfolded and stretched, the soft glue 83 provides an external force (shown as F in fig. 11) to pull the flexible heat dissipation module 50 out of the seams, and the flexible heat dissipation module 50 is forced to stretch and contract. Effectively avoid pasting the axle heat dissipation module of striding of center, by the centre gripping door plant crack to lead to top screen problems such as flexible heat dissipation module 50 deformation, hunch-up. That is, the soft rubber 83 is used to limit the flexible heat dissipation module 50 from being clamped into any one of the first, second, third, and fourth seams A1, A2, A3, and A4.

In some possible embodiments, the first surface of the flexible heat sink module 50 facing the support 43 may be bonded to any one or two of the middle door panel 31, the first side door panel 32, and the second side door panel 33 by the soft glue 83. For example, a second surface of the static area (corresponding to the position of the middle door panel 31) of the flexible heat dissipation module 50 facing away from the support 43 is bonded to the middle door panel 31 in the hinge mechanism 30 by the soft glue 83.

With continued reference to fig. 10 and 11, the area outside the static area of the flexible heat dissipation module 50 is respectively adhered to the first body 10 by a first connection glue 81 (e.g., soft glue), and adhered to the second body 20 by a second connection glue 82 (e.g., soft glue); the first connection glue 81, the second connection glue 82, and the soft glue 83 as the anti-clamping member are located on the same side of the flexible heat dissipation module 50. The first connection glue 81 and the second connection glue 82 play a role in fixing the flexible heat dissipation module 50 to the folding mobile phone 1.

As shown in fig. 12 and 13, a second surface of the flexible heat dissipation module 50 facing away from the supporting member 43 is adhered to the supporting member 43 by a soft glue 83. Illustratively, the bending region of the flexible heat dissipation module 50 is bonded to the support 43 by the soft glue 83. That is, the flexible heat dissipation module 50 is adhered to the supporting member 43 through the soft glue 83 in the areas corresponding to the middle door panel 31, the first side door panel 32, and the second side door panel 33 of the rotation shaft mechanism 30.

Similarly, once the flexible heat sink module 50 is clamped into the door crack, the foldable mobile phone 1 is unfolded and stretched, and the soft glue 83 provides an external force to pull the flexible heat sink module 50 out of the crack. Effectively avoid pasting the axle heat dissipation module of striding of center, by the centre gripping door plant crack to lead to top screen problems such as flexible heat dissipation module 50 deformation, hunch-up.

In some possible embodiments, any one or two of the regions of the flexible thermal module 50 corresponding to the middle door panel 31, the first side door panel 32, and the second side door panel 33 in the hinge mechanism 30 are bonded to the support 43 by the soft glue 83. For example, the second side of the static area (corresponding to the position of the middle door panel 31) of the flexible heat sink module 50 facing the support 43 is adhered to the support 43 by the soft glue 83.

With continued reference to fig. 12 and 13, the area outside the static area of the flexible heat dissipation module 50 is glued to the support 43 by a first connection glue 81 and a second connection glue 82 (e.g., also soft glue); the first connection glue 81, the second connection glue 82, and the soft glue 83 as the anti-clipping member are located on the same side of the flexible heat dissipation module 50.

Referring to fig. 14, the hinge mechanism 30 according to the embodiment of the present invention is provided with a clamping prevention member at a gap between the first body 10 and the second body 20, and the clamping prevention member is an elastic clamping prevention film 84, and the elastic clamping prevention film 84 covers the gap. The elastic anti-pinch film 84 does not affect the rotation of the rotating shaft mechanism 30, and prevents the flexible heat dissipation module 50 from being pinched into the door panel crack. That is, the elastic anti-crack film 84 blocks the door crack, so that the flexible heat dissipation module 50 will not enter the door crack, and will not be clamped by the door crack. The problems of display failure of a top screen, light shadow, black spots and the like caused by creases of the flexible heat dissipation module 50 are avoided.

Illustratively, the elastic anti-pinch film 84 covers the first and fourth nips A1 and A4 described above (refer to fig. 16). In some possible embodiments, the elastic anti-pinch film 84 covers any one or more of the first, second, third, and fourth nips A1, A2, A3, and A4 described above.

Fig. 15 shows that the flexible heat dissipation module 50 is not bonded to the rotation shaft mechanism 30 through the soft glue 83, or is bonded to the supporting member 43 through the soft glue 83. In some possible embodiments, the folding mobile phone 1 may be provided with the soft rubber 83 and the elastic anti-pinching film 84 at the same time.

Referring to fig. 15 and 16, in some possible embodiments, the gap between the hinge mechanism 30 and the first body 10 and the second body 20 is covered with an elastic anti-pinch film 84, and the flexible heat dissipation module 50 and the hinge mechanism 30 are also bonded by a soft glue 83.

Referring to fig. 17, in some possible embodiments, the gap between the hinge mechanism 30 and the first body 10 and the second body 20 is covered with an elastic anti-pinch film 84, and the flexible heat dissipation module 50 and the supporting member 43 are also bonded by a soft adhesive 83.

Set up like this, be favorable to avoiding or slow down by a wide margin and stride a heat dissipation module and by the centre gripping door plant crack to lead to warping top screen problems such as hunch-up.

Referring to fig. 18, in some possible embodiments, the support 43 of the embodiment of the present application is provided with a plurality of through holes 431, and the plurality of through holes 431 may be processed by using an etching process, a stamping process, a cutting process, or the like to form the bamboo book. An elastic anti-clamping film 84 is arranged between the area corresponding to the plurality of through holes 431 of the support 43 and the flexible heat dissipation module 50, so that the flexible heat dissipation module 50 is effectively prevented from being clamped by the plurality of through holes 431. Or, in some possible embodiments, the plurality of through holes 431 are filled with an elastic gel, and the elastic gel can deform to occupy the space of the plurality of through holes 431, so that the flexible heat dissipation module 50 can be effectively prevented from being clamped by the plurality of through holes 431.

As an example, fig. 10 to 17 show that an SOC (System on Chip) 70 is further provided below the second body 20.

In summary, the cross-axis graphite heat dissipation module is laid in the folding mobile phone in the embodiment of the application, and the graphite heat dissipation module and the support piece are integrated; or soft glue is arranged between the graphite heat dissipation module and the rotating shaft mechanism; or soft glue is arranged between the graphite heat dissipation module and the support piece; or, an elastic anti-pinch film is attached to the gap of the cross-door plate; or, an elastic anti-clamping film is pasted below the gap of the bamboo book; or, the bamboo book gaps are filled, so that the problem that the cross-shaft graphite heat dissipation module is clamped into the bamboo book or the door plate gap is solved or greatly relieved, and the accumulation of creases and creases is avoided.

Claims

1. A foldable electronic device, comprising: the display module comprises a first machine body, a second machine body, a rotating shaft mechanism, a display module and a flexible heat dissipation module;

the first body and the second body are rotatably connected through the rotating shaft mechanism to switch between a folded position and an unfolded position, and the rotating shaft mechanism extends along a first direction;

a gap is formed between the first machine body and the rotating shaft mechanism and between the second machine body and the rotating shaft mechanism respectively;

the display module comprises a flexible display screen and a supporting piece, and the supporting piece is used for supporting the flexible display screen; wherein,

the flexible heat dissipation module and the supporting piece are integrally formed to limit the flexible heat dissipation module from being clamped into the gap; or,

and an anti-clamping piece is arranged between the flexible heat dissipation module and any one or more of the rotating shaft mechanism and the supporting piece so as to limit the flexible heat dissipation module from being clamped into the gap.

2. The electronic device of claim 1, wherein the flexible heat dissipation module is connected with the support by a hot pressing process to form a support laminate.

3. The electronic device of claim 2, wherein the flexible heat dissipation module comprises a heat dissipation layer and a fiber layer, and the support member, the fiber layer and the heat dissipation layer are stacked and thermocompressed.

4. The electronic device according to claim 3, wherein a material of the heat dissipation layer is any one of a graphene film, silver, copper, aluminum, steel, and boron nitride.

5. The electronic device of claim 3, wherein a thickness of the heat dissipation layer is 1 μm to 1mm.

6. The electronic device according to claim 3, wherein an elastic modulus of the heat dissipation layer is 0.5MPa to 500GPa.

7. The electronic device according to any one of claims 2 to 6, wherein the support laminate is provided with an opening to allow the support laminate to be bent, and a bending region of the support laminate corresponds to the hinge mechanism.

8. The electronic device of claim 7, wherein the support laminate comprises a bent portion and a non-bent portion contiguous with the bent portion, the bent portion being provided with the opening.

9. The electronic device of any of claims 3-6, wherein the fiber layer comprises a fiber reinforcement and a matrix cured to the fiber reinforcement.

10. The electronic device of claim 9, wherein the fiber reinforcement comprises any one of carbon fiber, glass fiber, quartz fiber, and organic fiber.

11. The electronic device of claim 9, wherein the matrix comprises a resin matrix or a metal matrix.

12. The electronic device of any of claims 3-6, 10-11, wherein the thickness of the fiber layer is 10 μ ι η to 1mm.

13. The electronic device of claim 1, wherein the anti-clipping component is a soft glue, and the first surface of the flexible heat dissipation module facing the supporting component is bonded to the supporting component through the soft glue; or the second surface of the flexible heat dissipation module, which is back to the support piece, is bonded with the rotating shaft mechanism through the soft glue.

14. The electronic device of claim 13, wherein the flexible heat dissipation module comprises a stationary region, the stationary region of the flexible heat dissipation module being stationary relative to the hinge mechanism during switching between the folded position and the unfolded position of the first body and the second body.

15. The electronic device of claim 14, wherein the first surface of the static area of the flexible heat dissipation module facing the support is bonded to the support by the soft glue; or the second surface of the static area of the flexible heat dissipation module, which is back to the support piece, is bonded with the rotating shaft mechanism through the soft glue.

16. The electronic device according to claim 14 or 15, wherein the hinge mechanism includes a middle door panel, a first side door panel, and a second side door panel, the middle door panel, the first side door panel, and the second side door panel respectively extend in the first direction, the first side door panel and the second side door panel are respectively located on both sides of the middle door panel in the first direction, a first gap exists between the first side door panel and the first body, a second gap exists between the first side door panel and the middle door panel, a third gap exists between the middle door panel and the second side door panel, and a fourth gap exists between the second side door panel and the second body;

in the unfolding position, the middle door panel, the first side door panel and the second side door panel are used for supporting the display module;

in the folding position, the middle door panel, the first side door panel and the second side door panel enclose a space for accommodating a bending part of the display module;

in the process that the first machine body and the second machine body are switched between the folding position and the unfolding position, the position of the first machine body relative to the first side door panel is unchanged, the position of the second machine body relative to the second side door panel is unchanged, the positions of the first machine body and the second machine body relative to the middle door panel are changed, and the static area of the flexible heat dissipation module is static relative to the middle door panel;

17. The electronic device of claim 16, wherein the soft gel is disposed between the quiet zone and any one or more of the middle door panel, the first side door panel, and the second side door panel.

18. The electronic device of any of claims 1-6, 8, 10-11, 13-15, 17, wherein the anti-pinch member is an elastic anti-pinch film covering the pinch seam.

19. The electronic device according to claim 14 or 15, wherein an area outside the static area of the flexible heat dissipation module is respectively adhered to the first body and the second body by a connection glue; or the area outside the static area of the flexible heat dissipation module is glued with the support piece through connecting glue; the connecting glue and the soft glue are positioned on the same side of the flexible heat dissipation module.

20. The electronic device according to any one of claims 13 to 15 and 17, wherein the supporting member has a plurality of through holes, and an elastic anti-pinching film is disposed between a region of the supporting member corresponding to the plurality of through holes and the flexible heat dissipation module, or elastic colloid is filled in the plurality of through holes.

21. The electronic device of any of claims 13-15, 17, wherein the soft gel is a transparent optical gel material.

22. The electronic device of claim 21, wherein the transparent optical glue material is optically clear glue OCA.