Electronic device

Abstract

The invention discloses an electronic device, comprising: a housing assembly comprising a first housing and a second housing, the first housing and the second housing being rotatably connected through a rotating shaft assembly, so that the electronic device is switched between an unfolded state and a folded state; the display screen is arranged on the surface of one side of the shell assembly; the electric connection assembly is arranged in the shell assembly and comprises a first flexible circuit board and a second flexible circuit board, one end of the first flexible circuit board and one end of the second flexible circuit board are fixedly connected with the circuit boards in the first shell and the second shell respectively, and the other ends of the first flexible circuit board and the second flexible circuit board are in mutual sliding connection; the circuit board in the first shell and the circuit board in the second shell are electrically connected through an electric connection assembly; wherein in the process that the electronic equipment is switched between the unfolded state and the folded state, the first flexible circuit board and the second flexible circuit board slide relative to each other and are electrically connected.

Description

Technical Field

[0001] The present application belongs to the technical field of electronic equipment, and specifically relates to an electronic equipment. Background Art

[0002] In foldable devices, such as Figure 1 , Figure 2 and Figure 3 As shown, the display screen 3' covers the two folding parts 2'. Since there are requirements for electrical connection and signal transmission between the two folding parts 2', one or more electrical connection components 4' must be used to connect the two folding parts 2'.

[0003] In the related art, the connection between the two folding parts 2' is achieved by passing the electrical connection component 4' through the interior of the hinge component 1', wherein a portion of the electrical connection component 4' is located between the keel 14' of the hinge component 1' and the door panel 12'. When the folding device is unfolded, the length of the electrical connection component 4' will be redundant, so that a portion of the electrical connection component 4' forms a bending portion 40'. The bending portion 40' is located in the space H between the door panel 12' and the frame of the folding part 2'. The bending radius of the bending portion 40' is small. As the folding device switches between the unfolded and folded states, the electrical connection component 4' is continuously stretched and bent, and fatigue fracture is prone to occur, thereby affecting the service life of the electronic device. Summary of the invention

[0004] The present application aims to provide an electronic device that at least solves the problem that the bending radius of the electrical connection component is small and fatigue fracture is prone to occur when the foldable device is unfolded.

[0005] In order to solve the above technical problems, this application is implemented as follows:

[0006] An embodiment of the present application proposes an electronic device, including: a shell assembly, including a first shell and a second shell, the first shell and the second shell are rotatably connected by a hinge assembly, so that the electronic device can switch between an unfolded state and a folded state; a display screen, arranged on a side surface of the shell assembly; an electrical connection assembly, arranged in the shell assembly, including a first flexible circuit board and a second flexible circuit board, one end of the first flexible circuit board and the second flexible circuit board are respectively fixedly connected to the circuit boards in the first shell and the second shell, and the other ends are slidably connected to each other, and the circuit board in the first shell and the circuit board in the second shell are electrically connected through the electrical connection assembly; wherein, in the process of switching the electronic device between the unfolded state and the folded state, the first flexible circuit board and the second flexible circuit board slide against each other and maintain electrical connection.

[0007] In an embodiment of the present application, an electronic device includes a housing component, a display screen and an electrical connection component, and a first housing and a second housing are connected by a rotating shaft component, so that the electronic device can switch between an unfolded state and a folded state. The display screen is arranged on a side surface of the housing component and can be unfolded and folded with the housing component, and the electrical connection component is connected between a circuit board in the first housing and a circuit board in the second housing, so that communication between the circuit board in the first housing and the circuit board in the second housing can be realized, and a hole is avoided on the rotating shaft component, so that the structural strength of the rotating shaft component is enhanced, and the reliability and durability of the electronic device are improved. In addition, the electrical connection component includes a first flexible circuit board and a second flexible circuit board, and the first flexible circuit board is slidably connected with the second flexible circuit board to adjust the length of the electrical connection component during the unfolding or folding process of the electronic device, so that the electrical connection component can be unfolded and folded with the housing component, and in the use process of the electronic device, there is no position with a small bending radius for the electrical connection component, and it does not need to be repeatedly pulled and arched like the related art, so that the electrical connection component can be prevented from being broken due to a small bending radius during the bending process, and the service life of the electrical connection component can be greatly improved.

[0008] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0010] Figure 1 It is one of the schematic diagrams of an electronic device in the related art;

[0011] Figure 2 yes Figure 1 A schematic diagram of the enlarged structure shown in the middle A;

[0012] Figure 3 This is the second schematic diagram of an electronic device in the related art.

[0013] Figures 1 to 3 Reference numerals in the figures:

[0014] 1' shaft assembly, 12' door panel, 14' keel, 2' folding part, 3' display screen, 4' electrical connection assembly, 40' bending part.

[0015] Figure 4 is one of the schematic diagrams of an electronic device according to an embodiment of the present application;

[0016] Figure 5 yes Figure 4 An enlarged structural schematic diagram of B in the illustrated embodiment;

[0017] Figure 6 is a second schematic diagram of an electronic device according to an embodiment of the present application;

[0018] Figure 7 is a schematic structural diagram of an electrical connection assembly according to an embodiment of the present application;

[0019] Figure 8 is one of the structural schematic diagrams of the first flexible circuit board according to an embodiment of the present application;

[0020] Fig. 9 This is the second structural schematic diagram of the first flexible circuit board according to the embodiment of the present application.

[0021] Figures 4 to 9 Reference numerals:

[0022] 1 shaft assembly, 10 hinge cover, 12 door panel, 14 keel, 2 shell assembly, 21 first shell, 22 second shell, 3 display screen, 4 electrical connection assembly, 40 first flexible circuit board, 400 slide groove, 402 first flexible layer, 404 second flexible layer, 4000 opening, 4002 bottom wall, 4004 metal track, 42 ​​second flexible circuit board, 420 extension part, 422 third flexible layer, 424 fourth flexible layer, 44 conductive part, 46 first support part, 48 second support part, 49 adhesive, 5 battery, 6 auxiliary screen. DETAILED DESCRIPTION

[0023] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0024] The term "first" or "second" in the specification and claims of this application may include one or more of the features explicitly or implicitly. In the description of this application, unless otherwise specified, "plurality" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects.

[0025] In the description of the present application, it should be understood that the terms "length", "width", "thickness", "up", "down", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0026] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0027] Combine the following Figure 4-Figure 9 An electronic device according to an embodiment of the present application is described.

[0028] like Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, an electronic device according to some embodiments of the present application includes: a shell assembly 2, including a first shell 21 and a second shell 22, the first shell 21 and the second shell 22 are rotatably connected by a hinge assembly 1, so that the electronic device can switch between an unfolded state and a folded state; a display screen 3, arranged on a side surface of the shell assembly 2; an electrical connection assembly 4, arranged in the shell assembly 2, including a first flexible circuit board 40 and a second flexible circuit board 42, one end of the first flexible circuit board 40 and the second flexible circuit board 42 are fixedly connected to the circuit boards in the first shell 21 and the second shell 22 respectively, and the other ends are slidably connected to each other, and the circuit board of the first shell 21 and the circuit board in the second shell 22 are electrically connected through the electrical connection assembly 4; wherein, in the process of switching the electronic device between the unfolded state and the folded state, the first flexible circuit board 40 and the second flexible circuit board 42 slide against each other and maintain electrical connection.

[0029] In an embodiment of the present application, the electronic device includes a housing assembly 2, a display screen 3 and an electrical connection assembly 4. The first housing 21 and the second housing 22 are rotatably connected via a hinge assembly 1, so that the electronic device can switch between an unfolded state and a folded state. The display screen 3 is arranged on one side surface of the shell assembly 2 and can be unfolded and folded with the shell assembly 2. The electrical connection assembly 4 is connected between the circuit board of the first shell 21 and the circuit board in the second shell 22, which can not only realize the communication between the circuit board of the first shell 21 and the circuit board in the second shell 22, but also avoid opening a hole on the hinge assembly 1, thereby enhancing the structural strength of the hinge assembly 1 and improving the reliability and durability of the electronic device. In addition, the electrical connection assembly 4 includes a first flexible circuit board 40 and a second flexible circuit board 42. The first flexible circuit board 40 is slidably connected to the second flexible circuit board 42 to adjust the length of the electrical connection assembly 4 during the unfolding or folding of the electronic device, so that the electrical connection assembly 4 can be unfolded and folded with the shell assembly 2. During the use of the electronic device, the electrical connection assembly 4 does not have a position with a small bending radius, and does not need to be repeatedly pulled and arched like the related technology. It can avoid the situation where the bending radius of the electrical connection assembly 4 is too small during the bending process, resulting in breakage, and can greatly improve the service life of the electrical connection assembly 4.

[0030] It can be understood that functional components are disposed in the housing assembly 2 , and the functional components between the housing assemblies 2 are electrically connected via the electrical connection assembly 4 .

[0031] Specifically, in the process of switching the electronic device from the unfolded state to the folded state, the first flexible circuit board 40 and the second flexible circuit board 42 slide relative to each other with the movement of the shell assembly 2, thereby lengthening the overall length of the electrical connection assembly 4 so that the electrical connection assembly 4 can be folded along with the shell assembly 2; in the process of switching the electronic device from the folded state to the unfolded state, the first flexible circuit board 40 and the second flexible circuit board 42 slide relative to each other with the movement of the shell assembly 2, thereby shortening the overall length of the electrical connection assembly 4 so that the electrical connection assembly 4 can be unfolded along with the shell assembly 2.

[0032] It can be understood that the length of the electrical connection assembly 4 in the unfolded state is smaller than the length of the electrical connection assembly 4 in the folded state.

[0033] It can be understood that at least a portion of the electrical connection assembly 4 is a flexible structure, so that the electrical connection assembly 4 can move along with the movement of the housing assembly 2 .

[0034] Optionally, the electrical connection component 4 includes but is not limited to a flexible circuit board, a cable, and the like.

[0035] Optionally, when the electronic device is in a folded state, the position of the electrical connection component 4 corresponding to the hinge component 1 is folded into a water drop shape as the display screen 3 is bent.

[0036] like Figure 4 , Figure 5 and Figure 7 As shown, according to some embodiments of the present application, optionally, a slide groove 400 is provided on one side of the first flexible circuit board 40 close to the second shell body 22, and the second flexible circuit board 42 includes an extension portion 420, which is disposed in the slide groove 400 and is slidably connected to the slide groove 400; wherein, the length of the extension portion 420 extending into the slide groove 400 in the folded state is less than the length of the extension portion 420 extending into the slide groove 400 in the unfolded state.

[0037] In this embodiment, a slide groove 400 is provided on one side of the first flexible circuit board 40 close to the second housing 22, and the second flexible circuit board 42 includes an extension portion 420, which extends into the slide groove 400 and can slide in the slide groove 400, so that the overall length of the electrical connection component 4 can be adjusted during the unfolding or folding of the electronic device, so that the electrical connection component 4 moves with the housing component 2, so as to adjust the length of the electrical connection component 4. In the folded state, a part of the extension portion 420 is located in the slide groove 400, so as to ensure the connection reliability between the first flexible circuit board 40 and the second flexible circuit board 42. At the same time, the length of the extension portion 420 extending into the slide groove 400 in the folded state is less than the length of the extension portion 420 extending into the slide groove 400 in the unfolded state, so that the length of the electrical connection component 4 gradually increases during the switching of the electronic device from the unfolded state to the folded state, so that the electrical connection component 4 can be bent with a larger radius along with the display screen 3.

[0038] like Figure 5 and Figure 6 As shown, according to some embodiments of the present application, optionally, at least one conductive portion 44 is provided between the inner wall surface of the slide groove 400 and the extension portion 420 , and the slide groove 400 and the extension portion 420 are electrically connected via the conductive portion 44 .

[0039] In this embodiment, a conductive portion 44 is provided between the inner wall surface of the slide groove 400 and the extension portion 420, so that the slide groove 400 and the extension portion 420 are electrically connected through the conductive portion 44, thereby realizing an electrical connection between the first flexible circuit board 40 and the second flexible circuit board 42, and further realizing an electrical connection between the shell components 2.

[0040] Optionally, the extension portion 420 is supported in the slide groove 400 by the conductive portion 44 , so that there is a gap between other parts of the extension portion 420 and the slide groove 400 , thereby reducing the friction area between the extension portion 420 and the slide groove 400 .

[0041] Optionally, along the thickness direction of the extension portion 420, the thickness of the extension portion 420 is smaller than the width of the slide groove 400, so that there is a gap between the extension portion 420 and the slide groove 400 to reduce the friction between the two.

[0042] It is understandable that the conductive portion 44 may be fixedly disposed on the slide slot 400 or the extension portion 420 , or may be movably disposed between the slide slot 400 and the extension portion 420 .

[0043] According to some embodiments of the present application, optionally, the side of the first flexible circuit board 40 close to the second shell 22 includes a first flexible layer 402 and a second flexible layer 404, a slide groove 400 is formed between the first flexible layer 402 and the second flexible layer 404, a conductive part 44 is arranged between the first flexible layer 402 and the extension part 420, and a conductive part 44 is arranged between the second flexible layer 404 and the extension part 420.

[0044] In this embodiment, the side of the first flexible circuit board 40 close to the second shell 22 includes a first flexible layer 402 and a second flexible layer 404, a slide groove 400 is formed between the first flexible layer 402 and the second flexible layer 404, and a conductive part 44 is provided between the first flexible layer 402 and the extension part 420, and between the second flexible layer 404 and the extension part 420. This can ensure the connection stability between the slide groove 400 and the extension part 420, thereby ensuring that the circuit board in the first shell 21 and the circuit board in the second shell 22 have a good electrical connection.

[0045] According to some embodiments of the present application, optionally, the second flexible circuit board 42 includes a third flexible layer 422 and a fourth flexible layer 424 , the third flexible layer 422 is slidably disposed in the slide groove 400 , and the third flexible layer 422 constitutes an extension portion 420 .

[0046] In this embodiment, the second flexible circuit board 42 includes a third flexible layer 422 and a fourth flexible layer 424. The thickness of the third flexible layer 422 is less than the thickness of the fourth flexible layer 424. The third flexible layer 422 is arranged close to the first shell 21 and can slide in the slide groove 400, that is, the third flexible layer 422 constitutes an extension portion 420.

[0047] like Figure 7 , Figure 8 and Fig. 9 As shown, according to some embodiments of the present application, optionally, the conductive part 44 is provided on the extension part 420, and the conductive part 44 protrudes from the surface of the extension part 420; wherein, the side wall of the slide groove 400 is provided with a metal track 4004, and at least a portion of the conductive part 44 is accommodated in the metal track 4004 and can slide in the metal track 4004.

[0048] In this embodiment, the conductive part 44 is arranged on the extension part 420 and protrudes from the surface of the extension part 420, so that the conductive part 44 can contact the inner wall surface of the metal track 4004 to achieve electrical connection between the first flexible circuit board 40 and the second flexible circuit board 42. In addition, the conductive part 44 is arranged on the extension part 420, and the side wall of the slide groove 400 is provided with a metal track 4004 for accommodating the conductive part 44. When the first flexible circuit board 40 and the second flexible circuit board 42 move relative to each other, the conductive part 44 can slide relative to the metal track 4004 with the extension part 420, thereby improving the contact stability between the conductive part 44 and the slide groove 400, thereby ensuring the reliability of the electrical connection between the first flexible circuit board 40 and the second flexible circuit board 42.

[0049] It can be understood that the metal track 4004 extends along the sliding direction of the first flexible circuit board 40 and the second flexible circuit board 42 .

[0050] Alternatively, the metal track may be a copper track.

[0051] According to some embodiments of the present application, optionally, when there are multiple conductive parts 44 , the multiple conductive parts 44 are disposed on two opposite sides of the extension part 420 .

[0052] In this embodiment, a plurality of conductive portions 44 are disposed on opposite sides of the extension portion 420 , so that both sides of the extension portion 420 can be electrically connected to the inner wall surface of the metal track 4004 through the conductive portions 44 , thereby improving the reliability of the electrical connection.

[0053] According to some embodiments of the present application, optionally, the plurality of conductive portions 44 are arranged in a plurality of rows, and any row of conductive portions 44 includes a plurality of conductive portions 44 spaced apart along a length direction of the electrical connection assembly 4 .

[0054] In this embodiment, the plurality of conductive portions 44 are arranged in multiple rows, and each row of conductive portions 44 has multiple conductive portions 44, so that the first flexible circuit board 40 and the second flexible circuit board 42 have multiple connection points, ensuring the reliability of the electrical connection between the first flexible circuit board 40 and the second flexible circuit board 42. In addition, the plurality of conductive portions 44 in any row of conductive portions 44 are arranged at intervals along the length direction of the electrical connection component 4, so that when a part of the extension portion 420 extends out of the slide groove 400 to lengthen the electrical connection component 4, at least one conductive portion 44 can be in contact with the slide groove 400, and reliable electrical connection between the first flexible circuit board 40 and the second flexible circuit board 42 is ensured while ensuring the length adjustment range of the first flexible circuit board 40 and the second flexible circuit board 42.

[0055] Optionally, when the electronic device is in the folded state, at least one conductive portion 44 is in contact with the metal track 4004 .

[0056] According to some embodiments of the present application, optionally, one of the slide groove 400 and the extension portion 420 is an integral structure with the conductive portion 44 , or the conductive portion 44 is rollably disposed between the slide groove 400 and the extension portion 420 .

[0057] In this embodiment, the conductive part 44 can be fixed to any one of the slide groove 400 and the extension part 420, so that the conductive part 44 and the slide groove 400 or the extension part 420 are an integrated structure to prevent the conductive part 44 from falling off, thereby ensuring the connection strength between the first flexible circuit board 40 and the second flexible circuit board 42. Alternatively, the conductive part 44 can be rollably arranged between the slide groove 400 and the extension part 420 to reduce the friction between the conductive part 44 and the slide groove 400 or the extension part 420, thereby reducing the friction loss of the conductive part 44, improving the service life of the conductive part 44, and thereby improving the electrical connection stability between the first flexible circuit board 40 and the second flexible circuit board 42.

[0058] It is understandable that, when the conductive part 44 is rollably disposed between the slide groove 400 and the extension part 420 , a limiting structure of the conductive part 44 is disposed on the side wall of the slide groove 400 or the extension part 420 , so that the conductive part 44 can roll within the limiting structure.

[0059] like Figure 5 As shown, according to some embodiments of the present application, optionally, the slide slot 400 includes an opening 4000 and a bottom wall 4002 that are relatively arranged, and the extension portion 420 extends into the slide slot 400 from the opening 4000; in the unfolded state, along the length direction of the electrical connection component 4, there is a gap between the end of the extension portion 420 and the bottom wall 4002 of the slide slot 400; and / or there is a gap between one end of the slide slot 400 having the opening 4000 and one end of the extension portion 420 away from the bottom wall 4002 of the slide slot 400.

[0060] In this embodiment, in the unfolded state, along the length direction of the electrical connection component 4, there is a gap between the end of the extension 420 and the bottom wall 4002 of the slide slot 400, which can prevent the extension 420 from abutting against the bottom wall 4002 of the slide slot 400, causing the electrical connection component 4 to be arched as a whole, thereby preventing the electrical connection component 4 from lifting the display screen 3. And / or when the electronic device is in the unfolded state, there is a gap between one end of the slide slot 400 with the opening 4000 and one end of the extension 420 away from the bottom wall 4002 of the slide slot 400, so that the end of the slide slot 400 will not abut against the second flexible circuit board 42, thereby preventing the connection between the first flexible circuit board 40 and the second flexible circuit board 42 from being arched, thereby preventing the electrical connection component 4 from arching the display screen 3.

[0061] According to some embodiments of the present application, optionally, at least a portion of the slide groove 400 is arranged opposite to the rotating shaft assembly 1 .

[0062] In this embodiment, at least a portion of the slide groove 400 is arranged relative to the hinge assembly 1, so that when the electronic device is switched between the unfolded state and the folded state, the electrical connection assembly 4 can be free of a position with a small bending radius, thereby avoiding the electrical connection assembly 4 from breaking due to a bending radius that is too small during the bending process, and can greatly improve the service life of the electrical connection assembly 4.

[0063] like Figure 5 , Figure 6 and Figure 7 As shown, according to some embodiments of the present application, optionally, the electrical connection assembly 4 further includes: a first support portion 46, located on the side of the first flexible circuit board 40 and the second flexible circuit board 42 facing the display screen 3; a second support portion 48, located on the side of the first flexible circuit board 40 and the second flexible circuit board 42 away from the display screen 3, and the connection between the first flexible circuit board 40 and the second flexible circuit board 42 is clamped between the first support portion 46 and the second support portion 48; at least a portion of the first support portion 46 and the second support portion 48 is a flexible structure, so that the first support portion 46 and the second support portion 48 can move with the shell assembly 2.

[0064] In this embodiment, the electrical connection assembly 4 further includes a first support portion 46 and a second support portion 48, wherein the first support portion 46 is located on the side of the first flexible circuit board 40 and the second flexible circuit board 42 facing the display screen 3, and the second support portion 48 is located on the side of the first flexible circuit board 40 and the second flexible circuit board 42 facing away from the display screen 3, and the interconnected portion of the first flexible circuit board 40 and the second flexible circuit board 42 is sandwiched between the first support portion 46 and the second support portion 48 to ensure the connection strength between the first flexible circuit board 40 and the second flexible circuit board 42. At the same time, at least a portion of the first support portion 46 and the second support portion 48 is a flexible structure, so that the first support portion 46 and the second support portion 48 can move with the unfolding or folding of the electronic device, ensuring the smoothness of the unfolding and folding of the electronic device.

[0065] Optionally, the thicknesses of the first support portion 46 and the second support portion 48 are the same or different.

[0066] Optionally, the lengths and widths of the first supporting portion 46 and the second supporting portion 48 are the same or different.

[0067] According to some embodiments of the present application, optionally, the first support portion 46 and the second support portion 48 protrude from the first flexible circuit board 40 and the second flexible circuit board 42 along the width direction of the electrical connection component 4, and the portion of the first support portion 46 protruding from the first flexible circuit board 40 and the second flexible circuit board 42 and the portion of the second support portion 48 protruding from the first flexible circuit board 40 and the second flexible circuit board 42 are connected.

[0068] In this embodiment, the first support portion 46 and the second support portion 48 protrude from the first flexible circuit board 40 and the second flexible circuit board 42 along the width direction of the electrical connection component 4, so that the first support portion 46 and the second support portion 48 can be connected to each other, thereby clamping the first flexible circuit board 40 and the second flexible circuit board 42 therebetween, thereby improving the connection strength of the first flexible circuit board 40 and the second flexible circuit board 42.

[0069] According to some embodiments of the present application, optionally, the first support portion 46 and the second support portion 48 are connected by at least one of the following methods: bonding, threading, and clamping.

[0070] In this embodiment, the first support portion 46 and the second support portion 48 may be bonded, screwed, or clamped, as long as they can be connected.

[0071] Optionally, the first supporting portion 46 and the second supporting portion 48 are bonded and connected by an adhesive 49 .

[0072] Optionally, the electronic device includes a mobile phone, a tablet computer, etc.

[0073] Optionally, the electronic device further includes batteries 5 , and the batteries 5 are respectively disposed in the housing components 2 .

[0074] Optionally, the battery 5 in the housing assembly 2 is connected via an electrical connection assembly 4 .

[0075] Optionally, the electronic device further includes a secondary screen 6 , which covers a side of the housing assembly 2 facing away from the display screen 3 .

[0076] Optionally, the hinge assembly includes a hinge cover 10 , a door panel 12 and a keel 14 .

[0077] According to some embodiments of the present application, optionally, the present application changes the design of the internal wiring (such as the electrical connection component 4) to get rid of the dependence on the thickness space of the hinge component 1 (device thickness) to achieve the thinness and lightness requirements of foldable terminal devices. Since the wiring does not need to pass through the inside of the hinge component 1, and the hinge component 1 does not need to be perforated in the middle, the structural strength of the hinge component 1 can be greatly enhanced, and the reliability and durability of the folding device can be significantly improved. In addition, the wiring is placed between the folding screen and the hinge component 1. During the use of the device, the wiring does not have a small bending radius position, and does not need to be repeatedly pulled and arched like the traditional solution, avoiding the situation where the bending radius of the wiring is too small during the bending process, resulting in fatigue fracture. It can greatly increase the service life of the wiring and reduce the market failure rate.

[0078] The electronic device proposed in the present application arranges the flat cable between the hinge assembly 1 and the folding screen (e.g., display screen 3), making full use of the gap space between the hinge assembly 1 and the folding screen. The flat cable is divided into two left and right parts (e.g., a first flexible circuit board 40 and a second flexible circuit board 42). During the bending process, the left and right parts of the flat cable slide against each other to extend the overall length of the flat cable when the electronic device switches from a folded state to an unfolded state. The flat cable as a whole follows the folding screen to bend with a larger bending radius, which is beneficial to extending the bending fatigue life.

[0079] The cable is composed of a left cable (e.g., a first flexible circuit board 40), a cable support steel sheet (e.g., a first support portion 46 and a second support portion 48), a right cable connection point (e.g., a conductive portion 44), and a right cable (e.g., a second flexible circuit board 42). The left side extension of the right cable (e.g., an extension portion 420) is inserted into the slide groove 400 of the left cable, and the right cable connection point is attached to the upper and lower surfaces of the left side extension of the right cable. The right cable and the left cable are connected through the right cable connection point to achieve signal transmission. During the bending process, the right cable connection point follows the right cable to slide in the slide groove 400 of the left cable. The cable support steel sheet is composed of two steel sheets of the same shape and thickness, which are respectively located on the upper and lower surfaces of the cable and bonded by double-sided adhesive. The clamping force between the upper and lower steel sheets can ensure a stable connection between the left cable and the right cable. The entire cable arrangement structure is located between the folding screen and the door panel 12 of the hinge assembly 1, and the keel 14 of the hinge assembly 1, saving space between the left middle frame (such as the shell assembly 2), the right middle frame (such as the shell assembly 2) and the door panel 12 of the hinge assembly 1. This space can be used to strengthen the strength design of the middle frame or the layout design of the hinge virtual swing arm and the synchronous swing arm. During the bending process, the cable arrangement structure follows the folding screen to form a water drop shape with a larger bending radius, avoiding the cable from bending with a small bending radius, which greatly improves the bending fatigue life of the cable.

[0080] During the folding process, the left cable slides with the right cable, and the right cable wave point is always in stable contact with the left cable during the sliding process, ensuring stable signal transmission between the right and left cables. While the right and left cables are sliding, the length of the entire cable system is also lengthened, realizing the formation of a teardrop shape for the cable.

[0081] Optionally, the cable refers to a functional module that connects two or more folding modules, and its categories include but are not limited to flexible circuit boards, cables, etc. Modules that carry the same functions should also be within the scope of protection of this case.

[0082] The electronic device is not limited to left-right folding or up-down folding, and may also be folded in other ways (including but not limited to outward folding, tri-folding, etc.).

[0083] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0084] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. An electronic device, characterized in that: include: A housing assembly, comprising a first housing and a second housing, wherein the first housing and the second housing are rotatably connected via a rotating shaft assembly so that the electronic device can be switched between an unfolded state and a folded state; A display screen is arranged on a side surface of the housing assembly; an electrical connection assembly, disposed in the housing assembly, comprising a first flexible circuit board and a second flexible circuit board, wherein one end of the first flexible circuit board and the second flexible circuit board are fixedly connected to the circuit boards in the first housing and the second housing respectively, and the other ends are slidably connected to each other, and the circuit board in the first housing and the circuit board in the second housing are electrically connected through the electrical connection assembly; Wherein, during the switching of the electronic device between the unfolded state and the folded state, the first flexible circuit board and the second flexible circuit board slide relative to each other and maintain electrical connection.

2. The electronic device according to claim 1, characterized in that: A slide groove is provided on one side of the first flexible circuit board close to the second housing, and the second flexible circuit board includes an extension portion, which is arranged in the slide groove and slidably connected to the slide groove; Wherein, the length of the extension portion extending into the slide groove in the folded state is smaller than the length of the extension portion extending into the slide groove in the unfolded state.

3. The electronic device according to claim 2, characterized in that: At least one conductive portion is provided between the inner wall surface of the slide groove and the extension portion, and the slide groove and the extension portion are electrically connected via the conductive portion.

4. The electronic device according to claim 3, characterized in that: The side of the first flexible circuit board close to the second shell includes a first flexible layer and a second flexible layer, the slide groove is formed between the first flexible layer and the second flexible layer, the conductive part is arranged between the first flexible layer and the extension part, and the conductive part is arranged between the second flexible layer and the extension part.

5. The electronic device according to claim 3, characterized in that: The second flexible circuit board includes a third flexible layer and a fourth flexible layer. The third flexible layer is slidably disposed in the slide groove, and the third flexible layer constitutes the extension portion.

6. The electronic device according to claim 3, characterized in that: The conductive portion is disposed on the extension portion, and the conductive portion protrudes from the surface of the extension portion; Wherein, a metal track is provided on the side wall of the slide groove, and at least a part of the conductive part is accommodated in the metal track and can slide in the metal track.

7. The electronic device according to claim 6, characterized in that: When there are multiple conductive parts, the multiple conductive parts are arranged on two opposite sides of the extending part.

8. The electronic device according to claim 7, characterized in that: The plurality of conductive parts are arranged in a plurality of rows, and any row of the conductive parts includes a plurality of the conductive parts spaced apart along the length direction of the electrical connection component.

9. The electronic device according to claim 3, characterized in that: One of the slide groove and the extension portion is an integral structure with the conductive portion, or the conductive portion is rollably disposed between the slide groove and the extension portion.

10. The electronic device according to claim 2, characterized in that: The slide groove comprises an opening and a bottom wall which are arranged opposite to each other, and the extension portion extends from the opening into the slide groove; In the expanded state, along the length direction of the electrical connection component, there is a gap between the end of the extension portion and the bottom wall of the slide slot; and / or there is a gap between one end of the slide slot where the opening is provided and one end of the extension portion away from the bottom wall of the slide slot.

11. The electronic device according to claim 2, characterized in that: At least a portion of the slide slot is arranged opposite to the rotating shaft assembly.

12. The electronic device according to any one of claims 1 to 11, characterized in that: The electrical connection assembly also includes: A first supporting portion, located on a side of the first flexible circuit board and the second flexible circuit board facing the display screen; A second supporting portion is located at a side of the first flexible circuit board and the second flexible circuit board away from the display screen, and a connection between the first flexible circuit board and the second flexible circuit board is sandwiched between the first supporting portion and the second supporting portion; At least a portion of the first supporting portion and the second supporting portion is a flexible structure, so that the first supporting portion and the second supporting portion can move with the housing assembly.

13. The electronic device according to claim 12, characterized in that: The first supporting portion and the second supporting portion protrude from the first flexible circuit board and the second flexible circuit board along the width direction of the electrical connection component, and the portion of the first supporting portion protruding from the first flexible circuit board and the second flexible circuit board is connected to the portion of the second supporting portion protruding from the first flexible circuit board and the second flexible circuit board.

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