Folding electronic equipment

Abstract

The invention discloses a folding electronic device, and belongs to the technical field of communication, and the folding electronic device comprises a frame body, a hinge mechanism, a flexible screen, a heat dissipation film, and a first bonding part. The flexible screen is arranged on the frame body, the frame body comprises a first shell and a second shell, and the first shell and the second shell are rotationally connected through the hinge mechanism; the heat dissipation film is located between the frame body and the flexible screen, the heat dissipation film is provided with an attaching area and an extending area which are arranged in parallel, the attaching area is attached to the first shell, and the extending area is located on the side, facing the second shell, of the attaching area; the extension area penetrates through the hinge mechanism and extends to the second shell, the first bonding part is located in the attaching area, and the heat dissipation film is bonded with the flexible screen through the first bonding part.

Description

Technical Field

[0001] The present application belongs to the field of communication technology, and specifically relates to a foldable electronic device. Background Art

[0002] With the development of flexible display technology, foldable electronic devices are becoming increasingly popular. These devices include a first housing, a second housing, a flexible screen, and a hinge mechanism. The first and second housings are rotatably connected by the hinge mechanism, and the flexible screen is mounted on the first and second housings. The first and second housings can rotate relative to each other, thereby enabling the foldable electronic device to be folded and unfolded.

[0003] However, when a foldable electronic device is in the folded state, the two halves of the screen that are folded together will be adsorbed together. Therefore, when the foldable electronic device is switched from the folded state to the open state, the two halves of the screen that are adsorbed together are prone to produce an instantaneous vacuum breaking effect. Therefore, the foldable electronic device is prone to produce a loud abnormal noise during the unfolding process, thereby reducing the user experience. Summary of the Invention

[0004] The purpose of the embodiments of the present application is to provide a foldable electronic device that can solve the technical problem of preventing the flexible screen of the foldable electronic device from generating abnormal adsorption noise.

[0005] In order to solve the above technical problems, this application is implemented as follows: A foldable electronic device comprises a frame, a hinge mechanism, a flexible screen, a heat dissipation film and a first bonding portion; The flexible screen is arranged in the frame, and the frame includes a first shell and a second shell, and the first shell and the second shell are rotatably connected by the hinge mechanism; the heat dissipation film is located between the frame and the flexible screen, and the heat dissipation film has a fitting area and an extension area arranged in parallel, the fitting area is attached to the first shell, and the extension area is located on the side of the fitting area facing the second shell, and the extension area extends to the second shell through the hinge mechanism, the first bonding portion is located in the bonding area, and the heat dissipation film is bonded to the flexible screen through the first bonding portion.

[0006] In an embodiment of the present application, a heat dissipation film is located between the frame and the flexible screen. The heat dissipation film has a fitting area and an extension area arranged side by side. The fitting area is attached to the first shell, and the extension area is located on the side of the fitting area facing the second shell. The extension area extends through the hinge mechanism to the second shell. The first adhesive portion is located in the fitting area, and the heat dissipation film is adhered to the flexible screen via the first adhesive portion. In this solution, the half of the screen corresponding to the first shell is adhered to the heat dissipation film via the first adhesive portion. Since the heat dissipation film is adhered to the first shell, the first adhesive portion can pull the half of the screen corresponding to the first shell toward the first shell, thereby preventing the half of the screen corresponding to the first shell and the other half of the screen corresponding to the second shell from being adhered or squeezed together. Therefore, the risk of screen adsorption is less likely to occur in the folded state of the foldable electronic device, thereby avoiding the problem of loud abnormal noise during the unfolding of the foldable electronic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 is an exploded view of an electronic device disclosed in an embodiment of the present application; Figure 2 This is a schematic structural diagram of an electronic device disclosed in an embodiment of the present application; Figure 3 This is a partial cross-sectional view of an electronic device disclosed in an embodiment of the present application; Figure 4 is a cross-sectional view of a heat dissipation film of an electronic device disclosed in an embodiment of the present application; Figure 5 This is a schematic structural diagram of a heat dissipation film for an electronic device disclosed in an embodiment of the present application; Figure 6 is a schematic structural diagram of another electronic device disclosed in an embodiment of the present application; Figure 7 This is an exploded view of another heat dissipation film of an electronic device disclosed in an embodiment of the present application; Figures 8 to 11 This is a schematic structural diagram of some components of a heat dissipation film of another electronic device disclosed in an embodiment of the present application; Figure 12 is a schematic structural diagram of a third electronic device disclosed in an embodiment of the present application; Figure 13 This is an exploded view of a heat dissipation film of a third electronic device disclosed in an embodiment of the present application; Figure 14 and Figure 15 This is a schematic structural diagram of a heat dissipation film for a third electronic device disclosed in an embodiment of the present application.

[0008] Description of reference numerals: 100-frame, 110-first shell, 120-second shell, 200-hinge mechanism, 300-flexible screen, 400-heat dissipation film, 401-fitting area, 401a-first edge, 401b-second edge, 402-extension area, 410-membrane body, 411-avoidance notch, 4111-first notch, 4112-second notch, 420-support member, 421-support plate, 422-connecting plate, 430-second bonding part, 431-first sub-bonding part, 432-second sub-bonding part, 450-lubricating film layer, 500-first bonding part, 501-third edge, 502-fourth edge. DETAILED DESCRIPTION

[0009] The following will be combined with the accompanying drawings in the embodiments of this application to clearly describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0010] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects and are not used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate so that the embodiments of this application can be implemented in an order other than that illustrated or described herein. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0011] In the related art, foldable electronic devices are usually inward-folding, that is, when the foldable electronic device is in the folded state, the flexible screen is folded inside. After folding, the flexible screen is divided into a first screen area, a bending area, and a second screen area. The first screen area is arranged on the first shell, and the second screen area is arranged on the second shell, and the bending area corresponds to the hinge mechanism used to connect the first shell and the second shell. At this time, when the foldable electronic device is in the folded state, the first screen area and the second screen area will squeeze and adsorb each other. When oil film and stains are generated on the flexible screen, the adsorption effect will be further enhanced. Therefore, when the foldable electronic device switches from the folded state to the open state, the first screen area and the second screen area adsorbed together are prone to produce an instantaneous vacuum breaking effect, which causes the foldable electronic device to easily produce a large abnormal noise during the unfolding process, thereby reducing the user experience. At the same time, the mutual adsorption of the first screen area and the second screen area will also affect the difficulty of opening and closing the foldable electronic device.

[0012] The foldable electronic device provided by the embodiment of the present application is described in detail below through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0013] Please refer to Figures 1 to 15 An embodiment of the present application discloses a foldable electronic device, which includes a frame 100, a hinge mechanism 200, a flexible screen 300, a heat dissipation film 400 and a first adhesive portion 500.

[0014] The frame 100 provides a mounting base for other components of the electronic device. The frame 100 includes a first housing 110 and a second housing 120, which are rotatably connected by a hinge mechanism 200 so that the foldable electronic device can have an unfolded state and a folded state.

[0015] Optionally, the hinge mechanism 200 may include a base, screen-supporting side panels, and a pivoting arm. The base provides a mounting base for the other components of the hinge mechanism 200, and the screen-supporting side panels are pivotally connected to the base via the pivoting arm. The first housing 110 and the second housing 120 may be pivotally connected to the base via the screen-supporting side panels, thereby enabling relative rotation between the first housing 110 and the second housing 120.

[0016] In an optional embodiment, there are two screen-supporting side panels, including a first screen-supporting side panel and a second screen-supporting side panel. The first screen-supporting side panel and the second screen-supporting side panel are located on either side of the base, respectively. The first screen-supporting side panel corresponds to the first housing 110, and the second screen-supporting side panel corresponds to the second housing 120. The pivoting arm includes a first pivoting arm and a second pivoting arm. The first screen-supporting side panel is pivotally connected to the base via the first pivoting arm, and the second screen-supporting side panel is pivotally connected to the base via the second pivoting arm. The specific structure of the hinge mechanism 200 is conventional and will not be described in detail herein.

[0017] The flexible screen 300 is provided on the frame 100. Optionally, the flexible screen 300 is provided on the first shell 110 and the second shell 120. Specifically, the flexible screen 300 can be divided into a first screen area, a bending area, and a second screen area. The first screen area corresponds to the first shell 110, the second screen area corresponds to the second shell 120, and the bending area corresponds to the hinge mechanism 200 used to connect the first shell 110 and the second shell 120. The first screen area, the bending area, and the second screen area here refer to the flexible screen 300 formed after being folded. In the unfolded state, the flexible screen 300 is an integral display area.

[0018] The heat dissipation film 400 is used to dissipate heat. Positioned between the frame 100 and the flexible screen 300, the film 400 comprises a juxtaposed bonding region 401 and an extended region 402. The bonding region 401 is attached to the first housing 110, while the extended region 402 is located on the side of the bonding region 401 facing the second housing 120. The extended region 402 extends through the hinge mechanism 200 and onto the second housing 120. The bonding region 401 is attached to the first housing 110 on the side facing the first housing 110, effectively securing the heat dissipation film 400 to the first housing 110. The bonding region 401 of the heat dissipation film 400 also dissipates heat from the first housing 110 and the components mounted therein. For example, the first housing 110 may house components such as a battery, circuit boards, and a camera module. Heat from the first housing 110 can be transferred to the bonding region 401 of the heat dissipation film 400, dissipating the heat. In addition, the extended area 402 on the heat dissipation film 400 extends through the hinge mechanism 200 to the second shell 120, so the heat on the first shell 110 can be conducted to the second shell 120 through the extended area 402, thereby further improving the heat dissipation performance of the foldable electronic device.

[0019] The extended region 402 in this application is located between the hinge mechanism 200 and the bending region of the flexible screen 300. The extended region 402 is located above the hinge mechanism 200, and therefore passes over the hinge mechanism 200. The extended region 402 can overlap the second housing 120. To avoid affecting the folding of the flexible screen 300, the extended region 402 cannot be attached to the second housing 120. The end of the extended region 402 facing away from the attachment region 401 can slide relative to the second housing 120. Therefore, when the flexible screen 300 bends, a portion of the extended region 402 needs to bend accordingly to match the flexible screen 300.

[0020] Optionally, the heat dissipation film 400 and the first housing 110 may be bonded together by a bonding structure such as double-sided tape or glue.

[0021] The first adhesive portion 500 is located in the bonding area 401. The first adhesive portion 500 and the heat dissipation film 400 can be bonded to the flexible screen 300 via the first adhesive portion 500. Since the first adhesive portion 500 is located in the bonding area 401, and the bonding area 401 is located on the first housing 110, it can also be understood that the first adhesive portion 500 is located within the first housing 110. Therefore, the area on the heat dissipation film 400 corresponding to the first housing 110 and the area on the flexible screen 300 corresponding to the first housing 110 can be bonded via the first adhesive portion 500. It can also be understood that the bonding area 401 of the heat dissipation film 400 and the first screen area of the flexible screen 300 are bonded via the first adhesive portion 500.

[0022] Specifically, during operation, the bonding area 401 of the heat dissipation film 400 is bonded to the first screen area of the flexible screen 300 via the first bonding portion 500. At this point, the first screen area is attached to the first housing 110 via the bonding area 401 of the heat dissipation film 400. Therefore, the first screen area is subjected to a pulling force toward the first housing 110. This pulling force can create a certain gap between the first and second screen areas, thereby separating the first and second screen areas and avoiding the risk of the first and second screen areas being squeezed and adsorbed together.

[0023] In the embodiment disclosed in the present application, half of the screen corresponding to the first shell 110 is adhered to the heat dissipation film 400 through the first adhesive portion 500. Since the heat dissipation film 400 is adhered to the first shell 110, the first adhesive portion 500 can pull half of the screen corresponding to the first shell 110 toward the first shell 110, so that half of the screen corresponding to the first shell 110 and the other half of the screen corresponding to the second shell 120 are not easily fitted or squeezed together. Therefore, the risk of screen adsorption is not likely to occur in the foldable electronic device when it is in the folded state, thereby avoiding the problem of large abnormal noise during the unfolding of the foldable electronic device.

[0024] In addition, since the first screen area and the second screen area are less likely to be adsorbed after the flexible screen 300 is folded, it is more conducive to the opening and closing of the foldable electronic device, thereby reducing the difficulty of opening and closing the foldable electronic device.

[0025] In addition, the first adhesive portion 500 can pull the half of the screen corresponding to the first shell 110 toward the first shell 110, thereby avoiding the risk of bulging of the flexible screen 300 near the hinge mechanism 200, which is beneficial to ensuring the uniformity of the crease of the flexible screen 300, thereby further improving the user experience of the foldable electronic device.

[0026] In the above solution, the first adhesive portion 500 may be an adhesive structure such as double-sided tape, glue, etc. Of course, the first adhesive portion 500 may also be other adhesive structures, which is not limited herein.

[0027] In one alternative, the heat dissipation film 400 may be a pyrolytic graphite sheet, which has excellent heat dissipation and thermal conductivity properties, thereby further improving the heat dissipation performance of the foldable electronic device. In another embodiment, the heat dissipation film 400 includes a film body 410, a support member 420, and a lubricating film layer 450. The film body 410 has a contact area 401 and an extension area 402, and the film body 410 is the main heat dissipation component of the heat dissipation film 400. Heat from the first housing 110 is transferred to the film body 410, and then transferred to the second housing 120 through the film body 410. The support member 420 is attached to the side of the film body 410 facing the flexible screen 300, with at least a portion of the support member 420 located in the extension area 402. The lubricating film layer 450 is attached to the side of the support member 420 facing the flexible screen 300. Here, the support member 420 and the lubricating film layer 450 are both disposed on the extended region 402 , so the support member 420 and the lubricating film layer 450 are folded or unfolded together with the extended region 402 .

[0028] In this solution, support member 420 supports extension region 402, maintaining its shape during bending. It also covers the holes in hinge mechanism 200 to enhance the static pressure reliability of the steel ball, thereby improving the reliability of the foldable electronic device. A lubricating film layer 450 is applied to the surface of support member 420 facing flexible screen 300. During bending, lubricating film layer 450 reduces friction on flexible screen 300, thereby reducing frictional noise and further improving the user experience.

[0029] In the above embodiment, the membrane body 410 may be a pyrolytic graphite sheet, although other materials are also possible and are not intended to be limiting. The support member 420 may be a steel sheet or a flexible plastic structure, although other materials are also possible. The lubricating film layer 450 may be made of materials such as Teflon and graphite. The specific materials used to make the membrane body 410, support member 420, and lubricating film layer 450 are not intended to be limiting.

[0030] In the above solution, the first adhesive portion 500 is located on the bonding area 401 , so the first adhesive portion 500 is bonded to the component or film layer disposed on the bonding area 401 of the heat dissipation film 400 .

[0031] In an optional embodiment, the first adhesive portion 500 can be attached to the bonding area 401 of the film body 410, with the film body 410 bonded to the flexible screen 300 via the first adhesive portion 500. In this case, the bonding area 401 of the film body 410 is bonded to the first housing 110, and the film body 410 is then bonded to the first screen area of the flexible screen 300 via the first adhesive portion 500, thereby bonding and pulling the flexible screen 300 downward via the film body 410. In this solution, the flexible screen 300 is directly bonded to the film body 410, which has a larger bonding area, making bonding more convenient and reducing assembly and operational difficulty. Furthermore, directly placing the first adhesive portion 500 on the film body 410 also simplifies the structure and reduces costs.

[0032] In another optional solution, the area of the first adhesive portion 500 is smaller than the area of the bonding area 401. In this case, the bonding effect can be satisfied while reducing the influence of the first adhesive portion 500 on the heat dissipation of the bonding area 401.

[0033] Furthermore, the laminating region 401 has a first edge 401a and a second edge 401b disposed in opposite directions, and the extended region 402 is connected to the first edge 401a. In this case, the edge of the laminating region 401 facing the extended region 402 is the first edge 401a, and the extended region 402 extends from the first edge 401a of the laminating region 401. The side of the laminating region 401 facing away from the extended region 402 is the second edge 401b. The first bonding portion 500 may have a third edge 501 and a fourth edge 502 disposed in opposite directions, with the third edge 501 located on the side of the first bonding portion 500 facing the first edge 401a, and the fourth edge 502 located on the side of the first bonding portion 500 facing the second edge 401b. The distance between the first edge 401a and the third edge 501 may be smaller than the distance between the second edge 401b and the fourth edge 502. Since the distance between the first edge 401a and the third edge 501 is smaller than the distance between the second edge 401b and the fourth edge 502, the first bonding portion 500 is overall closer to the first edge 401a, that is, the first bonding portion 500 is located on the side of the bonding area 401 close to the extension area 402.

[0034] In this solution, the first adhesive portion 500 is located on the side of the fitting area 401 close to the extension area 402. Therefore, the bonding position of the first adhesive portion 500 and the flexible screen 300 is closer to the bending area of the flexible screen 300, thereby helping to avoid the risk of bulging of the flexible screen 300 near the hinge mechanism 200, and further helping to ensure the uniformity of the folds of the flexible screen 300. Furthermore, the location of the first adhesive portion 500 on the side of the fitting area 401 close to the extension area 402 also helps to avoid the risk of interference with the components within the first housing 110.

[0035] In the above embodiment, when the first adhesive portion 500 is arranged near the connection between the extended area 402 and the bonding area 401, the pulling force of the flexible screen 300 on the bonding area 401 will cause the risk of deformation or warping of the extended area 402, thereby affecting the heat dissipation and folding of the foldable electronic device.

[0036] Based on this, in another optional embodiment, the first adhesive portion 500 can be located on one side of the extension region 402 in the first direction; wherein the first direction is perpendicular to the extension direction of the extension region 402 and the extension direction of the film body 410. The extension direction of the extension region 402 here can be understood as the arrangement direction between the bonding region 401 and the extension region 402. In this case, the first adhesive portion 500 is located on one side of the extension region 402, and therefore the first adhesive portion 500 and the extension region 402 are offset in the first direction.

[0037] Specifically, the first direction can be as follows Figure 5 In the direction indicated by the X-axis in FIG, along the first direction, the extended region 402 has an upper edge and a lower edge disposed opposite each other, and both the upper edge and the lower edge are disposed adjacent to the bonding region 401. In this case, the first adhesive portion 500 can be located on the side where the upper edge is located; alternatively, the first adhesive portion 500 can be located on the side where the lower edge is located.

[0038] In this solution, the first adhesive portion 500 is located on one side of the extension area 402, so the first adhesive portion 500 and the extension area 402 are staggered. Therefore, the first adhesive portion 500 avoids the position near the connection between the extension area 402 and the bonding area 401, thereby avoiding the risk of deformation or warping of the extension area 402, which is beneficial to improving the heat dissipation and folding reliability of the foldable electronic device.

[0039] In another optional embodiment, the area of the extended region 402 may be larger than the area of the first adhesive portion 500. This means that the orthographic projection of the extended region 402 is smaller than the orthographic projection of the first adhesive portion 500 in a direction perpendicular to the film body 410. In this embodiment, the larger area of the extended region 402 ensures better heat dissipation performance.

[0040] like Figures 2 to 5 In the illustrated embodiment, the area of the support member 420 may be smaller than or equal to the area of the extension region 402 .

[0041] In another alternative embodiment, at least a portion of the support member 420 may be located within the laminating region 401, and the first adhesive portion 500 may be attached to the region of the support member 420 located within the laminating region 401. In this case, the first adhesive portion 500 is attached to the support member 420. The support member 420 may be bonded to the flexible screen 300 via the first adhesive portion 500.

[0042] In this solution, the first adhesive portion 500 is positioned on the support member 420 located in the lamination region 401. The strength and toughness of the support member 420 pulls the flexible screen 300 downward, thereby both adhering and holding the flexible screen 300. The support member 420 also disperses some of the pulling force, preventing it from acting directly on the film body 410 and causing the film body 410 to delaminate. Therefore, this solution achieves the desired adhesion of the flexible screen 300 while also maintaining the integrity and reliability of the heat dissipation film 400.

[0043] In another embodiment, the heat dissipation film 400 may further include a second adhesive portion 430, and the support member 420 may include a separately arranged support sheet 421 and a connecting sheet 422, wherein the separately arranged support member 421 and the connecting sheet 422 are two independent sheet-like structures that are not connected. The support sheet 421 may be located in the extension area 402, and the support sheet 421 here is used to support the extension area 402. The connecting sheet 422 may be located in the fitting area 401. The connecting sheet 422 here is the area where the support member 420 is located within the fitting area 401. The fitting area 401 may be provided with a avoidance notch 411, and the second adhesive portion 430 may be located within the avoidance notch 411 and be attached to the first shell 110. The connecting sheet 422 may be adhered to the side of the second adhesive portion 430 facing away from the first shell 110. The first adhesive portion 500 may be attached to a side of the connecting sheet 422 facing away from the second adhesive portion 430 , and the connecting sheet 422 may be bonded to the flexible screen 300 through the first adhesive portion 500 .

[0044] At this time, a avoidance notch 411 is opened on the bonding area 401 of the membrane body 410, and the avoidance notch 411 can expose part of the first shell 110. The avoidance notch 411 can avoid the connection piece 422 and the second adhesive part 430, so that the connection piece 422 can be adhered to the first shell 110 through the second adhesive part 430, and the first screen area of the flexible screen 300 can be adhered to the connection piece 422 through the first adhesive part 500.

[0045] like Figure 11 As shown, the force exerted by the flexible screen 300 on the first adhesive portion 500 is transmitted to the second adhesive portion 430 via the connecting piece 422, and then transmitted to the first shell 110 via the second adhesive portion 430. Therefore, the pulling force of the flexible screen 300 does not act on the membrane body 410, but directly acts on the first shell 110 through the connecting piece 422.

[0046] In this solution, the first adhesive portion 500 is positioned on the connecting sheet 422, to which the flexible screen 300 is bonded. The strength and toughness of the connecting sheet 422 pulls the flexible screen 300 downward, thereby securing the flexible screen 300 while simultaneously avoiding the risk of direct bonding between the flexible screen 300 and the film body 410, which could cause the film body 410 to delaminate. Therefore, this solution achieves the desired bonding effect for the flexible screen 300 while also maintaining the integrity and reliability of the heat dissipation film 400.

[0047] In the above embodiment, the connecting piece 422 needs to have a larger area to meet the bonding requirements with the first bonding portion 500 and the second bonding portion 430. However, the larger the area of the connecting piece 422, the larger the area of the avoidance notch 411, resulting in a smaller effective heat dissipation area of the film body 410, thereby affecting the heat dissipation performance of the heat dissipation film 400.

[0048] Based on this, in another optional embodiment, the avoidance notch 411 may include a first notch 4111 and a second notch 4112 arranged at intervals. The second adhesive portion 430 may include a first sub-adhesive portion 431 and a second sub-adhesive portion 432. The first sub-adhesive portion 431 may be located within the first notch 4111, and the second sub-adhesive portion 432 may be located within the second notch 4112. The connecting piece 422 may be located on a side of the membrane body 410 facing away from the first shell 110, and the connecting piece 422 may be bonded to both the first sub-adhesive portion 431 and the second sub-adhesive portion 432.

[0049] In this solution, the connecting sheet 422 is mounted on the side of the film body 410 facing the flexible screen 300, via a first sub-adhesive portion 431 located in the first notch 4111 and a second sub-adhesive portion 432 located in the second notch 4112. The first notch 4111 and the second notch 4112 ensure adhesion between the connecting sheet 422 and the first housing 110 while minimizing the impact on the heat dissipation area of the film body 410. Furthermore, the film body 410 passes through the connecting sheet 422 on the side facing away from the flexible screen 300. The space above the connecting sheet 422 is used for adhesion to the flexible screen 300, while the space below the connecting sheet 422 is used for passage through the film body 410. Therefore, the connecting sheet 422 can be designed to be larger without compromising the heat dissipation area of the film body 410, resulting in a larger surface area for the connecting sheet 422 and ensuring sufficient adhesion between the connecting sheet 422 and the flexible screen 300. Therefore, this solution can not only improve the bonding reliability between the connecting piece 422 and the first shell 110 and the flexible screen 300, but also preserve the heat dissipation performance of the membrane body 410 to the greatest extent.

[0050] In the above solution, the first notch 4111 and the second notch 4112 can be opened in the middle area of the fitting area 401 .

[0051] In another optional solution, both the first notch 4111 and the second notch 4112 can be located on the side of the fitting region 401 facing the extension region 402, and the extension region 402 can be located between the first notch 4111 and the second notch 4112. In this solution, the connection piece 422 is disposed on the side of the fitting region 401 facing the extension region 402, which facilitates the positioning of components within the first housing 110, thereby avoiding the risk of interference.

[0052] Furthermore, the connecting piece 422 may have a strip-shaped structure. In this case, the connecting piece 422 may extend in a direction parallel to the direction of extension of the first notch 4111 and the second notch 4112. In this embodiment, the strip-shaped connecting piece 422 ensures a larger bonding area while reducing the space occupied by the connecting piece on the side of the film body 410 facing the flexible screen 300, thereby further improving the assembly performance of the foldable electronic device.

[0053] In another optional embodiment, as Figures 12 to 14As shown, the support member 420 may include an integrally arranged support sheet 421 and a connecting sheet 422. The integral arrangement here means that the support sheet 421 and the connecting sheet 422 are connected to form an integral structure. In other words, the connecting sheet 422 extends from one side edge of the support sheet 421. The support sheet 421 can be attached to the extension area 402, and the support sheet 421 here can be unfolded or bent synchronously with the extension area 402. The connecting sheet 422 is attached to the fitting area 401. At this time, the connecting sheet 422 extends into the fitting area 401. The first adhesive portion 500 can be attached to the side of the connecting sheet 422 facing the flexible screen 300, and the support member 420 can be bonded to the flexible screen 300 through the first adhesive portion 500.

[0054] At this time, the support sheet 421 of the support member 420 is bonded to the flexible screen 300 through the first bonding portion 500, and the support member 420 is indirectly bonded to the first housing 110 through the film body 410. Therefore, the first housing 110 pulls down the flexible screen 300 through the film body 410 and the support member 420. Specifically, Figure 15 As shown, the force exerted by the flexible screen 300 on the first adhesive portion 500 is transmitted to the connecting piece 422 via the connecting piece 422 , then transmitted to the film body 410 via the connecting piece 422 , and then transmitted to the first shell 110 via the film body 410 .

[0055] In this solution, the connecting piece 422 and the supporting piece 421 form an integral structure. Therefore, the forces acting on the connecting piece 422 can be shared by the supporting piece 421, thereby increasing the load-bearing area. The supporting piece 420 can now disperse the tension applied to it over a wide area before transferring it to the membrane body 410. This avoids the risk of localized stress concentration on the membrane body 410 and further reduces the risk of delamination of the membrane body 410 when tension is applied on both sides, thereby ensuring the safety and reliability of the membrane body 410.

[0056] Figures 12 to 14 The scheme shown is compared to Figures 2 to 5 For the solution shown, the risk of delamination of the film body 410 can be reduced, thereby helping to improve the reliability of the foldable electronic device. Figures 12 to 14 The scheme shown is compared to Figures 6 to 9 For the solution shown, a connecting piece 422 and a second adhesive portion 430 are omitted in the process, and one action is omitted in the assembly, so the heat dissipation film 400 can be made into an integrated material, so the process and assembly are simpler, thereby greatly improving the assembly efficiency of the foldable electronic device.

[0057] In order to avoid direct bonding between the film body 410 and the flexible screen 300, the area of the first bonding portion 500 can be smaller than the area of the connecting piece 422. At this time, the first bonding portion 500 does not protrude from the edge of the connecting piece 422, and the first bonding portion 500 does not extend into the film body 410, thereby avoiding the risk of direct bonding between the film body 410 and the flexible screen 300, thereby ensuring that the pulling force of the flexible screen 300 can only be transmitted to the film body 410 through the support member 420.

[0058] In the above solution, the support member 420 can be formed into a supporting piece 421 and a connecting piece 422 by a process such as stamping or laser cutting. Of course, other processes can also be used for integral forming, which is not limited in this article.

[0059] In another optional solution, the area of the connecting piece 422 may be smaller than the area of the fitting area 401. In the first direction, the size of the connecting piece 422 may be larger than the size of the supporting piece 421. In the second direction, the size of the supporting piece 421 may be larger than the size of the connecting piece 422. The first direction is perpendicular to the extension direction of the extension area 402 and the thickness direction of the membrane body 410. The second direction is the extension direction of the extension area 402. The first direction here may be the direction of the rotation axis of the hinge mechanism 200. The second direction may be the arrangement direction of the first shell 110 and the second shell 120 in the unfolded state. The first direction here is as Figure 14 The X-axis direction is shown, and the second direction is as Figure 14 The thickness direction of the membrane body 410 is as shown in the Y-axis direction. Figure 15 The Z-axis direction is shown.

[0060] In this solution, the connecting piece 422 is larger in the first direction, which helps to further disperse the bonding tension, thereby further avoiding the risk of local stress concentration in the membrane body 410. The connecting piece 422 is smaller in the second direction, which prevents the support piece 421 from occupying the area of the membrane body 410 in its heat transfer direction.

[0061] In another alternative embodiment, in the second direction, the dimensions of the contact area 401 are larger than those of the extension area 402. This embodiment ensures that the contact area 401 has a larger area, thereby ensuring heat dissipation. Furthermore, the smaller dimensions of the extension area 402 reduce the difficulty of threading the hinge, thereby reducing the risk of interference between the extension area 402 and the hinge mechanism 200.

[0062] In another optional embodiment, the extension region 402 has a first adhesive region, a middle region, and a second adhesive region along the extension direction of the extension region 402. The support sheet 421 can be bonded to the first and second adhesive regions. In this case, the middle region of the extension region 402 is not bonded to the support sheet 421, thereby facilitating the bending operation of the extension region. Alternatively, the support sheet 421 can be bonded to the extension region 402 using double-sided tape, glue, or other adhesive structures, and this is not limited herein.

[0063] The electronic devices disclosed in the embodiments of the present application may be smart phones, tablet computers, e-book readers, wearable devices (such as smart watches), electronic game consoles, and other devices. The embodiments of the present application do not limit the specific types of electronic devices.

[0064] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A foldable electronic device, characterized in that: It includes a frame, a hinge mechanism, a flexible screen, a heat dissipation film and a first bonding part; The flexible screen is arranged in the frame, and the frame includes a first shell and a second shell, and the first shell and the second shell are rotatably connected by the hinge mechanism; the heat dissipation film is located between the frame and the flexible screen, and the heat dissipation film has a fitting area and an extension area arranged in parallel, the fitting area is attached to the first shell, and the extension area is located on the side of the fitting area facing the second shell, and the extension area extends to the second shell through the hinge mechanism, the first bonding portion is located in the bonding area, and the heat dissipation film is bonded to the flexible screen through the first bonding portion.

2. The foldable electronic device according to claim 1, wherein: The heat dissipation film includes a film body, a support member and a lubricating film layer. The film body has the bonding area and the extension area. The support member is attached to the side of the film body facing the flexible screen, and at least part of the support member is located in the extension area. The lubricating film layer is attached to the side of the support member facing the flexible screen.

3. The foldable electronic device according to claim 2, wherein: The first adhesive portion is attached to the bonding area of the film body, and the film body is bonded to the flexible screen via the first adhesive portion.

4. The foldable electronic device according to claim 3, wherein: The area of the first bonding portion is smaller than the area of the laminating region; The fitting area has a first edge and a second edge disposed opposite to each other, and the extension area is connected to the first edge; The first bonding portion has a third edge and a fourth edge arranged in opposite directions, the third edge is located on the side of the first bonding portion facing the first edge, and the fourth edge is located on the side of the first bonding portion facing the second edge, and the distance between the first edge and the third edge is smaller than the distance between the second edge and the fourth edge.

5. The foldable electronic device according to claim 4, wherein: In a first direction, the first bonding portion is located on one side of the extension region; wherein the first direction is perpendicular to both an extension direction of the extension region and a thickness direction of the film body.

6. The foldable electronic device according to claim 5, wherein: The area of the extended region is larger than that of the first bonding portion.

7. The foldable electronic device according to claim 2, wherein: At least a portion of the support member is located in the fitting area, the first adhesive portion is attached to the area of the support member located in the fitting area, and the support member is bonded to the flexible screen via the first adhesive portion.

8. The foldable electronic device according to claim 7, wherein: The heat dissipation film also includes a second adhesive portion; the support member includes a support sheet and a connecting sheet that are separately arranged, the support sheet is located in the extension area, and the connecting sheet is located in the fitting area; the fitting area is provided with a avoidance notch, the second adhesive portion is located in the avoidance notch, and is attached to the first shell, the connecting sheet is adhered to the side of the second adhesive portion facing away from the first shell, the first adhesive portion is attached to the side of the connecting sheet facing away from the second adhesive portion, and the connecting sheet is adhered to the flexible screen through the first adhesive portion.

9. The foldable electronic device according to claim 8, wherein: The avoidance gap includes a first gap and a second gap arranged at intervals; the second bonding portion includes a first sub-bonding portion and a second sub-bonding portion, the first sub-bonding portion is located in the first gap, and the second sub-bonding portion is located in the second gap, the connecting piece is located on the side of the membrane body away from the first shell, and the connecting piece is bonded to both the first sub-bonding portion and the second sub-bonding portion.

10. The foldable electronic device according to claim 9, wherein: The first notch and the second notch are both located on a side of the fitting area facing the extension area, and the extension area is located between the first notch and the second notch.

11. The foldable electronic device according to claim 9, wherein: The connecting piece is a strip structure, and an extending direction of the connecting piece is parallel to an extending direction of the first notch and the second notch.

12. The foldable electronic device according to claim 7, wherein: The support member includes an integrally arranged support sheet and a connecting sheet, the support sheet is affixed to the extension area, the connecting sheet is affixed to the fitting area, the first adhesive portion is affixed to the side of the connecting sheet facing the flexible screen, and the connecting sheet is bonded to the flexible screen through the first adhesive portion.

13. The foldable electronic device according to claim 8 or 11, characterized in that: The area of the connecting piece is smaller than the area of the fitting area; In the first direction, the size of the connecting piece is larger than the size of the supporting piece; in the second direction, the size of the supporting piece is larger than the size of the connecting piece; wherein, the first direction is perpendicular to the extension direction of the extension area and the thickness direction of the membrane body, and the second direction is the extension direction of the extension area.

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