Foldable device
By adopting a combined circuit board design in folding screen electronic devices, the overlapping of FPC branches and PCB boards increases the wiring space, solving the problem of taking into account both the battery capacity and the thickness of the entire machine, realizing the lightness and thinness of the equipment and the improvement of the battery capacity.
Patent Information
- Application Number
- CN202421712719.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-18
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-07-18
AI Technical Summary
In the process of pursuing lightweight and thinning, it is difficult to improve the battery capacity and reduce the thickness of the entire machine.
The combined circuit board design is adopted, by setting FPC branches and PCB boards on the side of the battery to overlap, the wiring space is increased without occupying the space in the thickness direction of the battery. Combined with the reasonable layout of electronic devices, the battery capacity is improved and the entire machine is thinner.
Without increasing the thickness of the entire machine, the battery capacity is significantly improved, the equipment is light and portable, and the layout and communication path of electronic devices are optimized.
Smart Images
Figure CN223157111U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of electronic devices, and more particularly, to a foldable device. Background Art
[0002] In recent years, the sales volume of foldable screen electronic devices, especially foldable screen mobile phones, has been increasing day by day, becoming the main growth point in the smart phone market. The development trend of foldable screen devices is to reduce thickness, reduce weight, increase portability, and improve user experience. With the development of thinner and lighter bodies, most key components have also reduced their volume, breaking through the traditional structure and conventional dimensions of smart phones. Summary of the Invention
[0003] This application provides a foldable device that increases the battery capacity without increasing the overall thickness of the device.
[0004] A foldable device includes:
[0005] A first part and a second part that can be relatively unfolded or folded around a shaft body, the first part including a first middle frame and a first battery assembled in the first middle frame;
[0006] A combined circuit board, including an FPC board and a first PCB board, the FPC board passing through the shaft body, including a first FPC branch disposed in the first part, the first FPC branch disposed on the side of the first battery, and the first FPC branch being stacked and electrically connected to the first PCB board.
[0007] Optionally, the first PCB board is fixedly connected to the first middle frame.
[0008] Optionally, the foldable device further includes an electronic component electrically connected to the end of the first FPC branch, the electronic component being disposed on the side of the first battery.
[0009] Optionally, there are multiple electronic components, and the multiple electronic components are disposed on the same side of the first battery.
[0010] Optionally, the electronic component includes a connector.
[0011] Optionally, the connector at least includes a first connector and a second connector, the first part further includes an outer display screen exposed outside and an inner display screen hidden inside in the folded state, the first connector is electrically connected to the inner display screen, and the second connector is electrically connected to the outer display screen.
[0012] Optionally, the electronic component further includes a screen driver, and the screen driver is located between the first connector and the second connector.
[0013] Optionally, the electronic device further includes a SIM card holder for installing a SIM card.
[0014] Optionally, the second part includes a second middle frame and a second battery assembled to the second middle frame. The FPC board further includes a second FPC branch disposed in the second part. The second FPC branch is disposed at a side of the second battery. The combined circuit board further includes a second PCB board. The second FPC branch and the second PCB board are stacked and electrically connected.
[0015] Optionally, the first part further includes a first main board, and the second part further includes a second main board. The FPC board further includes a third FPC branch disposed in the second part and a fourth FPC branch disposed in the first part. The third FPC branch is electrically connected to the second main board, and the fourth FPC branch is electrically connected to the first main board. The fourth FPC branch and the first FPC branch extend in opposite directions from the same side of the first battery.
[0016] The present application provides a foldable device. Among them, the first FPC branch is disposed at a side of the first battery, routes around the first battery, and is also stacked and electrically connected to the first PCB board, so that the thickness of the combined circuit board at the overlapping portion of the first FPC branch and the first PCB board increases. Thus, a larger routing space can be obtained at this part without occupying the space in the thickness direction of the first battery 23, which is beneficial to increasing the capacity of the first battery and realizing the thinness and lightness of the whole machine. Description of the Drawings
[0017] Figure 1 is a schematic diagram of a foldable device shown in an exemplary embodiment of the present application. Among them, the foldable device is in an unfolded state;
[0018] Figure 2 is a schematic diagram of a combined circuit board shown in an exemplary embodiment of the present application;
[0019] Figure 3 is Figure 2 a rear view of the combined circuit board shown in
[0020] Figure 4 is a schematic diagram of the first FPC branch stacked with the first PCB board;
[0021] Figure 5 is a schematic diagram of a partial structure of the first part;
[0022] Figure 6 is Figure 5 an enlarged view of part A in Detailed Embodiments
[0023] Here, in conjunction with the accompanying drawings, the technical solutions in the embodiments (or "embodiment modes") of the present application will be clearly and completely described. When the following description involves the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.
[0024] If there are terms related to directional indications or positional relationships in the embodiments of the present application (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), then such terms are only used to explain the relative positional relationships and movement conditions between components in a certain specific posture (as shown in the accompanying drawings); if this specific posture changes, then the directional indication or positional relationship will also change accordingly. In addition, the terms "first", "second", etc. involved in the embodiments of the present application are only for the purpose of convenient description and cannot be understood as indicating or implying relative importance.
[0025] Please refer to Figure 1 , Figure 1 which is a schematic diagram of a foldable device 100 shown in an exemplary embodiment of the present application, where the foldable device 100 is in an unfolded state.
[0026] The present application provides a foldable device 100, which includes a shaft body 10, a first part 20 and a second part 30 that can be relatively unfolded or folded around the shaft body 10. One of the first part 20 and the second part 30 is a main body part provided with a CPU (central processing unit), and the other is a folding part provided with a display screen. In this embodiment, the first part 20 is the folding part, and the second part 30 is the main body part.
[0027] The first part 20 includes a first middle frame 21, a first main board 22 assembled to the first middle frame 21, and a first battery 23. In one embodiment, the second part 30 may include a second middle frame 31, a second main board 32 assembled to the second middle frame 31, and a second battery 33, but is not limited thereto.
[0028] Please combine Figure 1 , Figures 2 to 4 , Figure 2 which is a schematic diagram of a combined circuit board 40 shown in an exemplary embodiment of the present application. Figure 3 is Figure 2 the rear view of the combined circuit board 40 shown in Figure 4 is a schematic diagram of the first FPC branch 410 stacked with the first PCB board.
[0029] The foldable device 100 further includes a combined circuit board 40, which includes an FPC board 41 and a first PCB board 42. The FPC board 41 is threaded through the shaft body 10 and electrically connected to the first main board 22 and the second main board 32 respectively to realize communication between the first main board 22 and the second main board 32. The FPC board 41 includes a first FPC branch 410 disposed in the first part 20. The first FPC branch 410 is disposed on the side of the first battery 23 and extends around the first battery 23. The first FPC branch 410 is stacked and electrically connected to the first PCB board. For example, the first FPC branch 410 and the first PCB board can be electrically connected by welding.
[0030] According to the above description, the first FPC branch 410 is disposed on the side of the first battery 23, routes around the first battery 23, and is also stacked and electrically connected to the first PCB board 42, so that the thickness of the combined circuit board 40 increases at the overlapping portion of the first FPC branch 410 and the first PCB board 42. For example, the first FPC branch 410 can be provided with 3 routing layers, and the first PCB board 42 can be provided with 6 - 8 routing layers, thereby obtaining a larger routing space at this part without occupying the space in the thickness direction of the first battery 23, which is beneficial to increasing the capacity of the first battery 23 and realizing the thinness and lightness of the whole machine.
[0031] In one embodiment, in order to control the routing directions of the first FPC branch 410 and the first PCB board 42 and avoid collision with the first battery 23, the first PCB board 42 is fixedly connected to the first middle frame 21. In this way, it can be ensured that the first FPC branch 410 and the first PCB board 42 are fixed at preset positions, and the manner of fixedly connecting the first PCB board 42 to the first middle frame 21 is not limited.
[0032] Please refer to Figure 5 and Figure 6 , Figure 5 which is a schematic diagram of part of the structure of the first part 20. Figure 6 is Figure 5 an enlarged view of part A in
[0033] In a specific embodiment, the first PCB board 42 includes a convex portion 420 protruding towards the first middle frame 21. The convex portion 420 is provided with a through hole for a screw 50 to pass through and is thread - locked to the first middle frame 21, and this connection method is simple and reliable.
[0034] Please refer to Figure 2, the foldable device 100 further includes an electronic component 60 electrically connected to the first FPC branch. The electronic component 60 is disposed at the end of the first FPC branch 410 and is located at the side of the first battery 23. With such an arrangement, the space between the first battery 23 and the first middle frame 21 can be effectively utilized, enabling the electronic component 60 to be arranged side by side with the first battery 23, and also realizing the design of integrating the electronic component 60 into the first FPC branch 410.
[0035] The number and functions of the electronic components 60 are not limited. In this embodiment, the electronic component 60 includes a connector. With such an arrangement, communication can be directly achieved with the components in the first part 20 through the connector, without the need to communicate through the second main board 32 in the second part 30. For example, the connector can directly communicate with the display screen of the first part 20, but not limited thereto.
[0036] In one embodiment, a plurality of the electronic components 60 are provided, and the plurality of electronic components 60 are disposed on the same side of the first battery 23, which can ensure the structural compactness and layout rationality. Figure 2 In the illustrated embodiment, the plurality of electronic components 60 are disposed at the gap between the lower side of the first battery 23 and the first middle frame 21.
[0037] In one embodiment, the connector at least includes a first connector 61 and a second connector 62. The first part 20 further includes an outer display screen exposed outside and an inner display screen (not shown) hidden inside in the folded state. The first connector 61 is electrically connected to the inner display screen, and the second connector 62 is electrically connected to the outer display screen. Thus, direct communication with the inner display screen is achieved through the first connector 61, and direct communication with the outer display screen is achieved through the second connector 62. The first connector 61 and the second connector 62 can be BTB connectors, but not limited thereto.
[0038] In one embodiment, the electronic component 60 further includes a SIM card holder 63 for installing a SIM card. With such an arrangement, compared with setting the SIM card holder 63 on the second main board 32 of the second part 30, a set of connectors can be reduced, releasing some space on the second main board 32, which is beneficial to the lightweight of the whole machine.
[0039] In one embodiment, the electronic device 60 further includes a screen driver 64. The screen driver 64 is integrated on the first FPC branch 410, which can further reduce the number of electronic devices on the second main board 32, thereby reducing the volume of the second main board 32 and increasing the capacity of the second battery 24. In an alternative embodiment, the screen driver 64 is disposed between the first connector 61 and the second connector 62. In this way, the distances between the screen driver 64 and the first connector 61 and the second connector 62 are relatively closer, with less signal loss and less delay.
[0040] In one embodiment, the FPC board 41 may further include a second FPC branch (not shown) disposed in the second portion 30. The second FPC branch is disposed on the side of the second battery 33 and extends around the second battery 33. The combined circuit board 40 may further include a second PCB board (not shown). The second FPC branch and the second PCB board are stacked and electrically connected. With this arrangement, the wiring space at the overlapping portion of the second FPC branch and the second PCB board can be strengthened without occupying the space in the thickness direction of the second battery 33, which is beneficial to increasing the capacity of the second battery 33. The second FPC branch may extend along the side of the second battery 33 close to the first battery 23, but is not limited thereto.
[0041] Please continue to refer to Figure 1 and Figure 3 , the FPC board 41 further includes a third FPC branch 411 disposed in the second portion 30 and a redundant section 412 passing through the shaft body 10. The third FPC branch 411 is electrically connected to the second main board 32. The third FPC branch 411 passes above the second battery 33 and is connected to the first FPC branch 410 through the redundant section 412. The redundant section 412 can stretch when the first portion 20 and the second portion 30 are folded and bend when the first portion 20 and the second portion 30 are unfolded.
[0042] The FPC board 41 further includes a fourth FPC branch 413 disposed in the first portion 20. The fourth FPC branch 413 is electrically connected to the first main board 22 and is also connected to the redundant section 412. The fourth FPC branch 413 and the first FPC branch 410 extend in opposite directions from the same side of the first battery 23. The first FPC branch 410 extends to one end of the first battery 23, such as the bottom end, and the fourth FPC branch 413 extends to the other end of the first battery 23, such as the top end.
[0043] In the plane where the first portion 20 and the second portion 30 are relatively flattened and in the direction perpendicular to the shaft body 10 ( Figure 2In the X direction, the third FPC branch 411 gradually widens from narrow to wide, and its maximum width dimension is approximately 20 mm. The redundant section 412 has a uniform width in this direction, and the width dimension of the redundant section 412 is equal to the maximum dimension of the third FPC branch 411. The first FPC branch 410 has a bent structure and is bent at the corner of the first battery 23. The width dimension of the part between the bent part and the redundant section 412 is relatively small, approximately 3 mm. It gradually widens from narrow to wide between the bent part and the end of the first FPC branch 410, and the area at the end is the largest. An electronic device 60 is arranged at the place with the largest area.
[0044] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included within the scope of protection of the present application.
Claims
1. A foldable device, characterized in that, Comprising: A first part and a second part that can be relatively unfolded or folded around a shaft body, the first part includes a first middle frame and a first battery assembled on the first middle frame; A combined circuit board, including an FPC board and a first PCB board, the FPC board penetrates through the shaft body, includes a first FPC branch provided in the first part, the first FPC branch is provided on the side of the first battery, and the first FPC branch is stacked and electrically connected to the first PCB board.
2. The foldable device according to claim 1, wherein The first PCB board is fixedly connected to the first middle frame.
3. The foldable device according to claim 1, wherein, The foldable device further includes an electronic device electrically connected to the end of the first FPC branch, and the electronic device is provided on the side of the first battery.
4. The foldable device according to claim 3, characterized in that, There are multiple electronic devices, and the multiple electronic devices are provided on the same side of the first battery.
5. The foldable device according to claim 4, wherein The electronic device includes a connector.
6. The foldable device according to claim 5, wherein, The connector at least includes a first connector and a second connector. The first part further includes an outer display screen exposed outside and an inner display screen hidden inside in the folded state. The first connector is electrically connected to the inner display screen, and the second connector is electrically connected to the outer display screen.
7. The foldable device according to claim 6, wherein The electronic device further includes a screen driver, and the screen driver is located between the first connector and the second connector.
8. The foldable device according to claim 4, wherein, The electronic device further includes a SIM card holder for installing a SIM card.
9. The foldable device according to any one of claims 1 to 8, characterized in that, The second part includes a second middle frame and a second battery assembled on the second middle frame. The FPC board further includes a second FPC branch provided in the second part, the second FPC branch is provided on the side of the second battery, and the combined circuit board further includes a second PCB board. The second FPC branch is stacked and electrically connected to the second PCB board.
10. The foldable device according to any one of claims 1 to 8, characterized in that, The first part further includes a first main board, the second part further includes a second main board, the FPC board further includes a third FPC branch provided in the second part and a fourth FPC branch provided in the first part. The third FPC branch is electrically connected to the second main board, the fourth FPC branch is electrically connected to the first main board, and the fourth FPC branch and the first FPC branch extend in opposite directions from the same side of the first battery.