Flexible circuit board and electronic equipment
By designing a flexible circuit board and utilizing the bendable connection between the first and second boards, the problem of complex operation when multiple wires pass through the installation channel is solved, thus achieving simplified assembly and precise connection of electronic devices.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- VIVO MOBILE COMM CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-04-24
AI Technical Summary
In the existing technology, the operation of making electrical connections by passing multiple independently set wires through the installation channel of electronic devices is complicated, which makes the assembly of electronic devices difficult.
The circuit board adopts a flexible circuit board design, which includes a first board, a second board and a bendable part. The bendable part connects the two boards. In the flat state, the second board and the first board are arranged in sequence, and in the bent state, they are stacked, which simplifies the process of passing through the installation channel.
It reduces the assembly difficulty of electronic devices, simplifies the operation of wires passing through the mounting channel, reduces the size of the mounting channel, and improves assembly accuracy and efficiency.
Smart Images
Figure CN224164983U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of electronic equipment technology, specifically relating to a flexible circuit board and an electronic device. Background Technology
[0002] In the assembly process of electronic devices, it is often necessary to electrically connect two independent components. Currently, the most common practice is to use multiple independently configured wires to achieve the electrical connection between these two components.
[0003] However, in actual operation, multiple independently set wires often need to pass through the reserved installation channels on the electronic device in order to achieve electrical connection between two independent components. The operation of passing multiple independently set wires through the installation channels is quite complicated, which makes the assembly of electronic devices more difficult. Utility Model Content
[0004] The purpose of this application is to provide a flexible circuit board and electronic device that can solve the problem of high assembly difficulty in related technologies.
[0005] In a first aspect, embodiments of this application provide a flexible circuit board, comprising:
[0006] A first plate, the first plate extending along a first direction;
[0007] A second plate and a bendable portion, the second plate extending along the first direction, the second plate being connected to the first plate via the bendable portion;
[0008] Wherein: when the bendable portion is in a flattened state, the second plate and the first plate are arranged sequentially along a second direction, and the second direction intersects with the first direction; when the bendable portion is in a bent state, at least a portion of the first plate and the second plate are stacked in a third direction, and the third direction intersects with both the second direction and the first direction.
[0009] Secondly, this application also provides an electronic device, which includes: a housing and the flexible circuit board described above, wherein the housing is provided with an installation channel, and a portion of the first plate of the flexible circuit board passes through the installation channel.
[0010] The flexible circuit board provided in this embodiment is an integral structure that can pass directly through the mounting channel of electronic devices, thereby reducing the assembly difficulty of electronic devices.
[0011] In this embodiment, the first and second plates of the flexible circuit board both extend along a first direction, and the second plate is connected to the first plate via a bendable portion. When the bendable portion is in a flattened state, the second plate and the first plate are arranged sequentially along a second direction, which intersects the first direction. When the bendable portion is in a bent state, at least a portion of the first plate and the second plate are stacked in a third direction, which intersects both the second and first directions. In this layout, when the bendable portion is in a bent state, the stacking of the second and first plates reduces the size of the flexible circuit board in the second direction, thereby allowing the flexible circuit board to pass more easily through the mounting channel of the electronic device and helping to reduce the size of the mounting channel. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of a flexible circuit board disclosed in one embodiment of this application;
[0013] Figure 2 for Figure 1 Enlarged view of Part I;
[0014] Figure 3 for Figure 1 A schematic diagram of the structure of a flexible circuit board in another state;
[0015] Figure 4 for Figure 1 A schematic diagram showing the way a flexible circuit board fits into the housing of an electronic device;
[0016] Figure 5 for Figure 4 A schematic diagram of the structure of a publicly disclosed electronic device in another state;
[0017] Figure 6 for Figure 1 One of the publicly disclosed schematic diagrams illustrating the interaction between a flexible circuit board and the motherboard of an electronic device;
[0018] Figure 7 for Figure 1 The second publicly disclosed schematic diagram of the interaction between a flexible circuit board and the motherboard of an electronic device;
[0019] Figure 8 for Figure 1 The third publicly disclosed schematic diagram of the interaction between a flexible circuit board and the motherboard of an electronic device;
[0020] Figure 9 This is a schematic diagram of the structure of a flexible circuit board disclosed in another embodiment of this application;
[0021] Figure 10 for Figure 9 A schematic diagram of the structure of a flexible circuit board in another state;
[0022] Figure 11 for Figure 9 A schematic diagram showing the way a flexible circuit board fits into the housing of an electronic device;
[0023] Figure 12 for Figure 11 Perspective view;
[0024] Figure 13 This is a schematic diagram of the structure of the electronic device disclosed in the embodiments of this application.
[0025] Explanation of reference numerals in the attached figures:
[0026] 110-First plate, 111-First sub-part, 112-Second sub-part, 1121-First electrical connection part, 1122-First pull wire hole, 1123-First end, 1124-Third end, 113-Third sub-part, 120-Second plate, 121-Second electrical connection part, 122-Second pull wire hole, 123-Second end, 124-Fourth end, 130-Bendable part, 131-Positioning hole, 132-Strip hole, 140-Groove, 150-Stepped part, 161-First marking line, 162-Second marking line, 163-Third marking line, 171-Fourth marking line, 172-Fifth marking line;
[0027] 200 - Housing; 210 - Mounting channel;
[0028] 300-Motherboard;
[0029] 410 - First connector, 420 - Second connector. Detailed Implementation
[0030] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.
[0031] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.
[0032] The flexible circuit board and electronic device provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.
[0033] Please refer to Figures 1 to 13 As shown in the embodiment of this application, a flexible circuit board is provided, which includes: a first board body 110, a second board body 120, and a bendable portion 130.
[0034] The first plate 110 extends along a first direction, for example, the first direction is... Figure 1 The direction indicated by the middle arrow A.
[0035] The second plate 120 extends along the first direction and is connected to the first plate 110 via a bendable portion 130, which can switch between a flattened state and a bent state.
[0036] Wherein: when the bendable portion 130 is in a flattened state, the second plate 120 and the first plate 110 are arranged sequentially along a second direction, which intersects with the first direction. For example, the second direction is... Figure 1 In the direction indicated by the middle arrow B, the flexible circuit board is, for example, in a flattened state, and in this state, the flexible circuit board has, for example, a flat structure. When the bendable portion 130 is in a bent state, at least a portion of the first plate 110 is stacked with the second plate 120 in a third-direction upward direction, and the third-direction intersects both the second and first directions. That is, when the bendable portion 130 is in a bent state, the second plate 120 and the first plate 110 can be stacked together in a third-direction upward direction, or a portion of the first plate 110 can be stacked with the second plate 120 in a third-direction upward direction. In this case, the dimension of the second plate 120 in the first direction is, for example, smaller than the dimension of the first plate 110 in the first direction.
[0037] Optionally, the second direction may be perpendicular to the first direction, and both may be perpendicular to a third direction. Additionally, refer to... Figure 1 and Figure 3 As shown, the first plate 110 and the second plate 120 are both approximately rectangular. Correspondingly, the length direction of the first plate 110 and the length direction of the second plate 120 are both the same as the first direction, and the width direction of the first plate 110 and the width direction of the second plate 120 are both the same as the second direction.
[0038] The background art mentions that multiple independently configured wires need to be bundled together first and then passed through the mounting channel 210 of the electronic device. However, the flexible circuit board provided in this application embodiment is a single structure that does not require bundling and can be directly passed through the mounting channel 210 of the electronic device, thereby reducing the assembly difficulty of the electronic device.
[0039] Furthermore, in the embodiments of this application, the first plate 110 and the second plate 120 of the flexible circuit board both extend along a first direction, and the second plate 120 is connected to the first plate 110 through a bendable portion 130. When the bendable portion 130 is in a flattened state, the second plate 120 and the first plate 110 are arranged sequentially along a second direction, which intersects with the first direction. When the bendable portion 130 is in a bent state, at least a portion of the first plate 110 and the second plate 120 are stacked in a third direction, which intersects with both the second and first directions. In this layout, when the bendable portion 130 is in a bent state, the stacking of the second plate 120 and the first plate 110 reduces the size of the flexible circuit board in the second direction, thereby allowing the flexible circuit board to pass more easily through the mounting channel 210 of the electronic device and helping to reduce the size of the mounting channel 210.
[0040] In another embodiment, reference Figures 1 to 13 As shown, the first plate 110 has a first end 1123, which, for example, has a first electrical connection portion 1121. The second plate 120 has a second end 123, which, for example, has a second electrical connection portion 121. When the bendable portion 130 is in a bent state, the first end 1123 of the first plate 110 is stacked at least three times upward with the second end 123 of the second plate 120. Optionally, when the bendable portion 130 is in a bent state, the first end 1123 of the first plate 110 is stacked only three times upward with the second end 123 of the second plate 120, or the entire second plate 120 is stacked three times upward with the first end 1123 of the first plate 110. In this configuration, the second electrical connection portion 121 can also be located at other positions on the second plate 120 besides the second end 123. The first electrical connection portion 1121 is, for example, a part of the first plate 110 and is formed directly on the first plate 110; the second electrical connection portion 121 is, for example, a part of the second plate 120 and is formed directly on the second plate 120.
[0041] In this embodiment, the structures of the first electrical connection portion 1121 and the second electrical connection portion 121 are relatively simple, which helps to simplify the structure of the electronic device and reduce the cost of the electronic device.
[0042] Optionally, refer to Figure 1As shown, the first plate 110 includes, for example, a first sub-part 111 and a second sub-part 112 arranged sequentially along a first direction. When the bendable portion 130 is in a bent state, the second plate 120 is, for example, stacked with the second sub-part 112 in a third direction. In this layout, the flexible circuit board is approximately "Y"-shaped, and a portion of the conductive lines corresponding to the second sub-part 112 is located, for example, within the second sub-part 112, and another portion is located, for example, within the first sub-part 111. Similarly, a portion of the conductive lines corresponding to the second plate 120 is located, for example, within the second plate 120, and another portion is located, for example, within the first sub-part 111. In other words, the conductive lines corresponding to the first sub-part 111 are split into two branches, one branch located within the second sub-part 112, and the other branch located within the second plate 120.
[0043] In other alternative embodiments, the first plate 110 may also be additionally provided with a first electrical connector independent of the first plate 110, and the second plate 120 may be additionally provided with a second electrical connector independent of the second plate 120, so as to realize the electrical connection between the first plate 110 and the second plate 120 and other electronic devices.
[0044] In one optional embodiment, the number of second plates 120 is, for example, one, to simplify the structure of the flexible circuit board. Of course, the number of second plates 120 can also be at least two, in which case each second plate 120 is connected to the first plate 110 via a bendable portion 130. Specifically: when the bendable portion 130 is in a flattened state, the second plates 120 are arranged sequentially along a second direction, and each second plate 120 is located on the same side of the first plate 110, or alternatively, on opposite sides of the first plate 110 in the second direction; when the bendable portion 130 is in a bent state, each second plate 120 is, for example, stacked on at least a portion of the first plate 110 in a third-direction upward.
[0045] It should be noted that the number of second plates 120 is, for example, at least two. When the bendable part 130 is in a bent state, each second plate 120 is, for example, stacked on the third-order side with the second sub-part 112 mentioned above. In this layout, the conductive line corresponding to the first sub-part 111 mentioned above is, for example, divided into at least three branches. The second sub-part 112 corresponds to one of the branches, and the remaining branches correspond one-to-one with the second plates 120. Moreover, one branch can correspond to one conductive line or at least two conductive lines, which can be designed according to actual needs.
[0046] In a further embodiment, reference is made to... Figure 1As shown, the number of first electrical connection portions 1121 and second electrical connection portions 121 is, for example, at least two, and each first electrical connection portion 1121 and each second electrical connection portion 121 is, for example, arranged at intervals along a second direction. The first electrical connection portion 1121 and the second electrical connection portion 121 correspond to different conductive lines, and the first electrical connection portion 1121 and the second electrical connection portion 121 and the conductive lines are, for example, in a one-to-one correspondence.
[0047] The conductive lines at the first end 1123 of the first plate 110 and the conductive lines at the second end 123 of the second plate 120 are typically arranged at intervals along the second direction. Thus, in the scheme of this embodiment, the arrangement of each first electrical connection 1121 is basically the same as the arrangement of the corresponding conductive lines, and the arrangement of each second electrical connection 121 is basically the same as the arrangement of the corresponding conductive lines, thereby reducing the difficulty of connecting the first electrical connection 1121 and the second electrical connection 121 with the corresponding conductive lines.
[0048] Optionally, the first end 1123 of the first plate 110 and the second end 123 of the second plate 120 are both formed with gold fingers, and each first electrical connection portion 1121 and each second electrical connection portion 121 are, for example, different conductive portions of the gold fingers.
[0049] It should be noted that in the embodiments of this application, the number of the first electrical connection part 1121 and the second electrical connection part 121 is not limited. In other embodiments, the number of the first electrical connection part 1121 and the second electrical connection part 121 may both be one.
[0050] In another embodiment, reference Figure 1 and Figure 2 As shown, each first electrical connection portion 1121 and each second electrical connection portion 121 can also be arranged at intervals along the first direction. When the dimensions of the first electrical connection portion 1121 and the second electrical connection portion 121 are large, arranging the first electrical connection portion 1121 and the second electrical connection portion 121 at intervals along the first direction helps to compress the dimension of the flexible circuit board in the second direction. Since the dimension of the flexible circuit board in the first direction is usually large enough to accommodate the first electrical connection portion 1121 and the second electrical connection portion 121, the solution of this embodiment can reduce the dimension of the flexible circuit board in the second direction without substantially increasing the dimension of the flexible circuit board in the first direction.
[0051] Optionally, in this embodiment, the first electrical connection portion 1121 and the second electrical connection portion 121 are, for example, solder pads, and more specifically, for example, double-sided solder pads.
[0052] In another embodiment, reference Figure 1 and Figure 2As shown, the first plate 110 is provided with a first pull-wire hole 1122, and the first pull-wire hole 1122 can be positioned and engaged with a positioning tool; and / or, the second plate 120 is provided with a second pull-wire hole 122, and the second pull-wire hole 122 can be positioned and engaged with a positioning tool. That is to say, it is possible that only the first plate 110 is provided with the first pull-wire hole 1122 or only the second plate 120 is provided with the second pull-wire hole 122, or it is possible that both the first plate 110 and the second plate 120 are provided with the second pull-wire hole 122.
[0053] When the first pull hole 1122 and the second pull hole 122 are provided simultaneously, and the bendable part 130 is in a bent state, the first pull hole 1122 and the second pull hole 122 are arranged opposite each other in the third direction, and the first pull hole 1122 and the second pull hole 122 are connected.
[0054] At least one of the first pull hole 1122 and the second pull hole 122 can be used with a pull tool. The pull tool is, for example, stronger than the flexible circuit board and smaller than the flexible circuit board. By using the pull tool in conjunction with at least one of the first pull hole 1122 and the second pull hole 122, a portion of the flexible circuit board can be easily and quickly passed through the mounting channel 210 on the electronic device. Furthermore, by using at least one of the first pull hole 1122 and the second pull hole 122 in conjunction with the pull tool, the connection between the pull tool and the flexible circuit board is more reliable, and the two are less likely to separate.
[0055] Before actual assembly, for example, one end of the pull tool is pre-passed through the first pull hole 1122 and the second pull hole 122 in sequence and then tied and fixed. During actual assembly, for example, the other end of the pull tool is first passed through the mounting channel 210, and then the other end of the pull tool is pulled, thereby driving a part of the flexible circuit board through the mounting channel 210. The pull tool is, for example, a steel wire.
[0056] Furthermore, when both the first pull hole 1122 and the second pull hole 122 are included, the first pull hole 1122 and the second pull hole 122 are both engaged with the positioning tool, which allows for a faster and more accurate determination of the installation position of the flexible circuit board. This reduces the difficulty of installing the flexible circuit board and improves its installation accuracy. The positioning tool, for example, has at least two positioning posts. In actual assembly, the first pull hole 1122 and the second pull hole 122 are respectively positioned on different positioning posts to locate the installation position of the flexible circuit board.
[0057] Furthermore, in this embodiment, the first pull hole 1122 and the second pull hole 122 can assist the flexible circuit board in passing through the mounting channel 210 on the one hand, and on the other hand, they can assist in positioning the flexible circuit board. This simplifies the structure of the flexible circuit board and reduces the processing difficulty of the flexible circuit board.
[0058] Optionally, the diameter of the first pull hole 1122 can be the same as or different from the diameter of the second pull hole 122, depending on the actual needs of the design.
[0059] In other alternative embodiments, the first plate 110 may not have the first pull-wire hole 1122, and the second plate 120 may not have the second pull-wire hole 122. In this case, refer to... Figure 10 As shown, when the bendable portion 130 is in a bent state, the second plate 120 is stacked, for example, on the first end 1123 of the first plate 110 in a third-order upward direction, and the bendable portion 130 has a sixth end. A step portion 150 is formed, for example, between the end face of the sixth end of the bendable portion 130 and the first plate 110. In this layout, when actually installing the flexible circuit board, the bendable portion 130 is, for example, in a bent state, and one end of a pull tool is tied to the first plate 110, and that end is engaged with the step portion 150 to allow the pull tool to drive a portion of the flexible circuit board through the mounting channel 210.
[0060] In another embodiment, reference Figure 9 As shown, the bendable portion 130 is provided with at least two positioning holes 131. When the bendable portion 130 is in a flattened state, the axial direction of the positioning holes 131 is the same as the third direction. The positioning holes 131 are spaced apart along the first direction, and each positioning hole 131 can be positioned and engaged with a positioning tool. With this configuration, the positioning holes 131 do not excessively weaken the overall strength of the first plate 110 and the second plate 120, which helps to extend the service life of the first plate 110 and the second plate 120. In addition, the positioning holes 131 weaken the local strength of the bendable portion 130, thereby reducing the bending difficulty of the bendable portion 130. Furthermore, by positioning and engaging with the positioning tool through the positioning holes 131, the installation position of the flexible circuit board can be determined relatively quickly and accurately, thereby reducing the installation difficulty of the flexible circuit board and improving the installation accuracy of the flexible circuit board.
[0061] Similarly, the positioning tool may have at least two positioning posts. In the actual assembly process, for example, each positioning hole 131 may be inserted into a different positioning post to position the flexible circuit board.
[0062] In another embodiment, reference Figure 9As shown, the bendable portion 130 is provided with, for example, a strip-shaped hole 132, the length direction of which is the same as the first direction. The strip-shaped hole 132 also weakens the local strength of the bendable portion 130, thereby reducing the difficulty of bending the bendable portion 130. In addition, the strip-shaped hole 132 can release stress, thus preventing the bendable portion 130 from being subjected to excessive local stress, thereby extending the service life of the bendable portion 130.
[0063] In other alternative embodiments, the bendable portion 130 may also omit the strip hole 132.
[0064] In another embodiment, the bendable portion 130 has a fifth end and a sixth end, the first plate 110 has a first end 1123, and the second plate 120 has a second end 123. When the bendable portion 130 is in a flattened state, the end face of the fifth end of the bendable portion 130, together with the first plate 110 and the second plate 120, forms a groove 140. The fifth end of the bendable portion 130 and the sixth end of the bendable portion 130 mentioned above are, for example, opposite ends of the bendable portion 130 in the first direction. A groove 140 is formed between the end face of the first end 1123 of the first plate 110 and the end face of the second end 123 of the second plate 120, and the size of the groove 140 gradually decreases in the second direction along the direction from the fifth end of the bendable portion 130 to the sixth end of the bendable portion 130. The direction from the fifth end of the bendable portion 130 to the sixth end of the bendable portion 130 is, for example, the opposite ends of the bendable portion 130 in the first direction. Figure 9 The direction indicated by the middle arrow C. In this layout, refer to... Figure 10 As shown, when the bendable portion 130 is in a bent state, along the direction from the fifth end of the bendable portion 130 to the sixth end of the bendable portion 130, the dimensions of the end of the structure formed by the first end 1123 of the first plate 110 and the second end 123 of the second plate 120 gradually increase in the second direction, and are approximately conical. The conical structure facilitates the passage through the mounting channel 210, thereby reducing the installation difficulty of the flexible circuit board.
[0065] This application also provides an electronic device, which includes a housing 200 and the flexible circuit board described above. The housing 200 is provided with a mounting channel 210, and a portion of the first plate 110 of the flexible circuit board passes through the mounting channel 210. This electronic device includes the flexible circuit board described above, and has the same beneficial effects as the flexible circuit board described above, which will not be repeated here.
[0066] Optionally, the electronic device is, for example, a smartphone, tablet, e-book reader, laptop, and wearable device, and the wearable device is, for example, an open-back headphone, specifically, such as a clip-on headphone, ear-hook headphone, bone conduction headphone, neckband headphone, or over-ear headphone, and the flexible circuit board is used, for example, to realize the electrical connection between the acoustic components of the open-back headphone and the motherboard 300.
[0067] In another embodiment, reference Figures 4 to 8 As shown, the first board 110 has a first end 1123 and a third end 1124, and the second board 120 has a second end 123 and a fourth end 124. The bendable portion 130 of the flexible circuit board is in a bent state. The fourth end 124 of the second board 120 is connected to the third end 1124 of the first board 110 through the bendable portion 130. The third end 1124 of the first board 110, the bendable portion 130, and the fourth end 124 of the second board 120 are all located outside the mounting channel 210. The first end 1123 of the first board 110 and the second end 123 of the second board 120 both pass through the mounting channel 210 and extend out of the mounting channel 210. In this layout, the bendable portion 130 does not need to pass through the mounting channel 210. Therefore, the design of the mounting channel 210 only needs to adapt to the overall size of the first board 110 and the second board 120 after stacking. This design can not only reduce the size of the mounting channel 210, but also further compress the overall volume of the electronic device.
[0068] In a further embodiment, reference is made to... Figures 5 to 8 As shown, the first end 1123 of the first plate 110 is folded towards one side of the first plate 110 and connected to the motherboard 300 of the electronic device; and / or, the second end 123 of the second plate 120 is folded towards one side of the second plate 120 and connected to the motherboard 300 of the electronic device. That is, only the first end 1123 of the first plate 110 or only the second end 123 of the second plate 120 may be folded, or both the first end 1123 of the first plate 110 and the second end 123 of the second plate 120 may be folded. When both the first end 1123 of the first plate 110 and the second end 123 of the second plate 120 are folded, the orientations of the first end 1123 of the first plate 110 and the second end 123 of the second plate 120 are opposite.
[0069] In this embodiment, after at least one of the first end 1123 of the first board 110 and the second end 123 of the second board 120 is folded, the first end 1123 of the first board 110 and the second end 123 of the second board 120 switch from a stacked state to a misaligned state. In the misaligned state, the first end 1123 of the first board 110 and the second end 123 of the second board 120 are less likely to interfere with each other, thereby reducing the difficulty of connecting the first board 110 and the second board 120 to the motherboard 300.
[0070] In addition, when the first end 1123 of the first plate 110 and the second end 123 of the second plate 120 in this embodiment are both folded, the first end 1123 of the first plate 110 and the second end 123 of the second plate 120 are oriented in opposite directions. This further reduces the possibility of mutual interference between the first end 1123 of the first plate 110 and the second end 123 of the second plate 120, thereby making the connection between the first plate 110 and the second plate 120 and the motherboard 300 more convenient.
[0071] Optionally, the first end 1123 of the first plate 110 is provided with the first pull wire hole 1122 mentioned above, and the second end 123 of the second plate 120 is provided with the second pull wire hole 122 mentioned above.
[0072] In the actual assembly process, for example, the bendable part 130 is first bent into a bent state. In this state, the first end 1123 of the first plate 110 and the second end 123 of the second plate 120 are stacked, and the width of the flexible circuit board becomes, for example, half of the initial width. Then, for example, with the cooperation of the wire pulling tool mentioned above and the first wire pulling hole 1122 and the second wire pulling hole 122, the first end 1123 of the first plate 110 and the second end 123 of the second plate 120 are both passed through the mounting channel 210. After the first end 1123 of the first plate 110 and the second end 123 of the second plate 120 have both passed through the mounting channel 210, they are both folded to a preset position. Then, the first wire pulling hole 1122, the second wire pulling hole 122, and the main board 300 are all cooperated with the positioning tool to position the relative positions of the first end 1123 of the first plate 110 and the second end 123 of the second plate 120 with the main board 300. After positioning is complete, remove the positioning tool, so that the first end 1123 of the first board 110 and the second end 123 of the second board 120 are both electrically connected to the motherboard 300, thus completing the entire assembly process. Alternatively, before electrically connecting the motherboard 300 to the first end 1123 of the first board 110 and the second end 123 of the second board 120, for example, the first end 1123 of the first board 110 and the second end 123 of the second board 120 can be glued to the motherboard 300 to prevent them from moving relative to the motherboard 300.
[0073] Furthermore, when the bendable portion 130 is in a bent state, the first plate 110 and the second plate 120 are bonded together, for example, with double-sided adhesive, to prevent the first plate 110 and the second plate 120 from separating from each other during the process of passing through the mounting channel 210.
[0074] Optionally, in this embodiment, the first end 1123 of the first plate 110 is provided with the first electrical connection portion 1121 mentioned above, and the first end 1123 of the first plate 110 is soldered to the motherboard 300 through the first electrical connection portion 1121. The second end 123 of the second plate 120 is provided with the second electrical connection portion 121 mentioned above, and the second end 123 of the second plate 120 is soldered to the motherboard 300 through the second electrical connection portion 121. Specifically, the soldering here is thermoforming or laser soldering. In addition, when the first end 1123 of the first board 110 and the second end 123 of the second board 120 are both formed with the gold fingers mentioned above, the motherboard 300 is provided with a second connector 420 for example. At this time, the gold fingers on the first end 1123 of the first board 110 and the gold fingers on the second end 123 of the second board 120 are respectively inserted and cooperated with two different second connectors 420 to realize the electrical connection between the first end 1123 of the first board 110 and the second end 123 of the second board 120 and the motherboard 300.
[0075] In other alternative embodiments, the first end 1123 of the first plate 110 and the second end 123 of the second plate 120 may also be arranged at an angle, and the angle may be, for example, an acute angle, to accommodate the corresponding assembly requirements of the first plate 110 and the second plate 120 with the motherboard 300.
[0076] In another embodiment, reference Figures 1 to 3 As shown, at least one of the first end 1123 of the first plate 110 and the second end 123 of the second plate 120 is provided with a first marking line 161, a second marking line 162, and a third marking line 163; wherein: when the first end 1123 of the first plate 110 or the second end 123 of the second plate 120 is in a flattened state, the first marking line 161 and the second marking line 162 are arranged in parallel, and the third marking line 163 is located between the first marking line 161 and the second marking line 162, and is inclined relative to both the first marking line 161 and the second marking line 162; when the first end 1123 of the first plate 110 or the second end 123 of the second plate 120 is folded, the crease of the first plate 110 or the second plate 120 is arranged along the third marking line 163, and the first marking line 161 is perpendicular to the second marking line 162.
[0077] By using the solution of this embodiment, the folding positions of the first plate 110 and the second plate 120 and whether the first plate 110 and the second plate 120 are folded in place can be determined more conveniently and quickly with the help of the first marking line 161, the second marking line 162 and the third marking line 163, thereby reducing the assembly difficulty of the electronic device and improving the assembly accuracy of the electronic device.
[0078] Further, refer to Figure 3As shown, at least one of the third end 1124 of the first plate 110 and the fourth end 124 of the second plate 120 is provided with a fourth identification line 171 and a fifth identification line 172. When the flexible circuit board is in a flattened state, the fourth identification line 171 and the fifth identification line 172 are arranged at intervals along a first direction, for example. The area between the fourth identification line 171 and the fifth identification line 172 is a preset installation area. It should be noted that the preset installation area includes the positions where the fourth identification line 171 and the fifth identification line 172 are located. In actual assembly, the flexible circuit board enters the installation channel 210 from the first end of the installation channel 210, for example. When the first end of the installation channel 210 is opposite to the preset installation area, it indicates that the flexible circuit board is installed. With the help of the fourth identification line 171 and the fifth identification line 172, it is easier and more accurate to determine whether the flexible circuit is installed in place, thereby reducing the installation difficulty of the flexible circuit board and improving the installation accuracy of the flexible circuit board.
[0079] In other alternative embodiments, the first identifier line 161, the second identifier line 162, the third identifier line 163, the fourth identifier line 171, and the fifth identifier line 172 may not be provided.
[0080] In one alternative embodiment, reference is made to... Figures 11 to 13 As shown, the first plate 110 has a first end 1123 and a third end 1124. When the bendable portion 130 is in a bent state, the second plate 120 is stacked on top of the first end 1123 of the first plate 110. The third end 1124 of the first plate 110 is located outside the mounting channel 210. The first end 1123 of the first plate 110, the bendable portion 130, and the second plate 120 all pass through and extend out of the mounting channel 210. Compared to the previous scheme where the second end 123 of the second plate 120 is stacked on top of the first end 1123 of the first plate 110, the scheme adopted in this embodiment has a smaller size for the second plate 120, which simplifies the structure of the flexible circuit board and reduces the cost of the flexible circuit board.
[0081] Furthermore, in this embodiment, the first board 110 is provided with the fourth identification line 171 and the fifth identification line 172 mentioned above, so as to reduce the installation difficulty of the flexible circuit board and improve the installation accuracy of the flexible circuit board.
[0082] Specifically, in this embodiment, the electronic device is, for example, an open-back headphone. Correspondingly, the third end 1124 of the first plate 110 is electrically connected to the acoustic device of the open-back headphone, so as to realize the electrical connection between the main board 300 of the open-back headphone and the acoustic device through the flexible circuit board provided in this embodiment.
[0083] In a further embodiment, reference is made to... Figure 13As shown, the bendable portion 130 is in a flattened state, and both the first end 1123 of the first plate 110 and the second plate 120 are connected to the motherboard 300 of the electronic device. Compared to the previous solution where at least one of the first end 1123 of the first plate 110 and the second end 123 of the second plate 120 is folded before being connected to the motherboard 300, the solution adopted in this embodiment only requires a simple unfolding operation to achieve electrical connection between the first plate 110 and the second plate 120 and the motherboard 300, thus making the connection between the first plate 110 and the second plate 120 and the motherboard 300 more convenient.
[0084] Optionally, the bendable portion 130 may be provided, for example, with the positioning hole 131 and the strip hole 132 mentioned above.
[0085] In the actual assembly process, for example, the bendable part 130 is first placed in a bent state. In this state, the second plate 120 is stacked with the first end 1123 of the first plate 110, reducing the size of the flexible circuit board and allowing it to pass through the mounting channel more easily. After the first end 1123 of the first plate 110 and the second plate 120 have both passed through the mounting channel 210, the bendable part 130 is switched to an unfolded state. Then, the positioning hole 131 is used in conjunction with a positioning tool to position the relative positions of the first end 1123 of the first plate 110 and the second plate 120 with the main board 300. Finally, the first end 1123 of the first plate 110 and the second plate 120 are electrically connected to the main board 300, thus completing the entire assembly process. In addition, before electrically connecting the motherboard 300 and the first end 1123 of the first board 110 and the second board 120, for example, the first end 1123 of the first board 110 and the second board 120 are both bonded to the motherboard 300 to prevent them from moving relative to the motherboard 300.
[0086] In addition, refer to Figure 10 As shown, in this embodiment, a step portion 150, as described above, is formed between the bendable portion 130 and the first plate 110, and the first end 1123 of the first plate 110 and the second plate 120 are pulled through the mounting channel 210 by, for example, the pull tool described above cooperating with the step portion 150.
[0087] Optionally, the first end 1123 of the first plate 110 may be provided with the first electrical connection portion 1121 mentioned above, and the first end 1123 of the first plate 110 may be soldered to the motherboard 300 through the first electrical connection portion 1121. The second plate 120 may be provided with the second electrical connection portion 121 mentioned above, and the second plate 120 may be soldered to the motherboard 300 through the second electrical connection portion 121. Similarly, the soldering here may be, for example, thermoforming or laser soldering. It should be noted that, in this embodiment, the second electrical connection portions 121 are distributed at different positions on the second plate 120, and not only on the second end 123 of the second plate 120. Similarly, in this embodiment, when the first end 1123 of the first board 110 and the second end 123 of the second board 120 are both formed with the gold fingers mentioned above, the motherboard 300 may be provided with a second connector 420. By having the gold fingers on the first end 1123 of the first board 110 and the gold fingers on the second end 123 of the second board 120 respectively plug and cooperate with two different second connectors 420, the electrical connection between the first board 110 and the second board 120 and the motherboard 300 can be realized.
[0088] In one alternative embodiment, reference is made to... Figure 1 As shown, the first board 110 includes, for example, a third sub-part 113 and the first sub-part 111 and second sub-part 112 mentioned above. The third sub-part 113, first sub-part 111, and second sub-part 112 are connected sequentially. The third sub-part 113 is provided with a first connector 410. The flexible circuit board is electrically connected to other devices besides the mainboard 300 of the electronic device, such as the acoustic devices mentioned above, through the first connector 410. Additionally, refer to... Figure 1 As shown, when the flexible circuit board is in a flattened state, the dimension of the third sub-part 113 in the second direction is, for example, larger than the dimensions of the second sub-part 112 and the first sub-part 111 in the second direction, so as to facilitate the arrangement of the first connector 410.
[0089] It should be noted that, in the embodiments of this application, there are no restrictions on the types of the first connector 410 and the second connector 420. Specifically, at least one of the first connector 410 and the second connector 420 may be, for example, a board-to-board connector or a zero-insertion-force connector.
[0090] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.
Claims
1. A flexible circuit board, characterized in that, include: A first plate (110) extends along a first direction; The second plate (120) and the bendable portion (130) extend along the first direction and are connected to the first plate (110) through the bendable portion (130); Wherein: when the bendable portion (130) is in a flattened state, the second plate (120) and the first plate (110) are arranged sequentially along a second direction, the second direction intersecting the first direction; when the bendable portion (130) is in a bent state, at least a portion of the first plate (110) and the second plate (120) are stacked in a third direction, the third direction intersecting both the second direction and the first direction.
2. The flexible circuit board according to claim 1, characterized in that, The first plate (110) has a first end (1123), the first end (1123) is provided with a first electrical connection part (1121), and the second plate (120) has a second end (123), and the second end (123) is provided with a second electrical connection part (121). When the bendable portion (130) is in a bent state, the first end (1123) of the first plate (110) is stacked on the third side at least with the second end (123) of the second plate (120).
3. The flexible circuit board according to claim 2, characterized in that, The number of the first electrical connection portion (1121) and the second electrical connection portion (121) is at least two; Each of the first electrical connection portions (1121) and each of the second electrical connection portions (121) are arranged at intervals along the first direction; or, each of the first electrical connection portions (1121) and each of the second electrical connection portions (121) are arranged at intervals along the second direction.
4. The flexible circuit board according to claim 1, characterized in that, The first plate (110) is provided with a first pull wire hole (1122), and the first pull wire hole (1122) can be positioned and engaged with a positioning tool; the second plate (120) is provided with a second pull wire hole (122), and the second pull wire hole (122) can be positioned and engaged with a positioning tool; When the bendable portion (130) is in a bent state, the first pull hole (1122) and the second pull hole (122) are arranged opposite each other in the third direction, and the first pull hole (1122) and the second pull hole (122) are connected.
5. The flexible circuit board according to claim 1, characterized in that, The bendable part (130) is provided with at least two positioning holes (131). When the bendable part (130) is in a flattened state, the axial direction of the positioning holes (131) is the same as the third direction. The positioning holes (131) are arranged at intervals along the first direction, and each positioning hole (131) can be positioned and cooperated with a positioning tool. And / or, the bendable portion (130) is provided with a strip hole (132), the length direction of the strip hole (132) being the same as the first direction; And / or, the bendable portion (130) has a fifth end and a sixth end, the first plate (110) has a first end (1123), and the second plate (120) has a second end (123). When the bendable portion (130) is in a flattened state, the end face of the fifth end of the bendable portion (130) together with the first plate (110) and the second plate (120) forms a groove (140). The groove (140) is formed between the end face of the first end (1123) of the first plate (110) and the end face of the second end (123) of the second plate (120). The groove (140) gradually decreases in size in the second direction along the direction from the fifth end of the bendable portion (130) to the sixth end of the bendable portion (130).
6. An electronic device, characterized in that, The device includes a housing (200) and a flexible circuit board as claimed in any one of claims 1-5, wherein the housing (200) is provided with a mounting channel (210) through which a portion of the first plate body (110) of the flexible circuit board passes.
7. The electronic device according to claim 6, characterized in that, The first plate (110) has a first end (1123) and a third end (1124), and the second plate (120) has a second end (123) and a fourth end (124). The bendable portion (130) of the flexible circuit board is in a bent state. The fourth end (124) of the second plate (120) is connected to the third end (1124) of the first plate (110) through the bendable portion (130). The third end (1124) of the first plate (110), the bendable portion (130) and the fourth end (124) of the second plate (120) are all located outside the mounting channel (210). The first end (1123) of the first plate (110) and the second end (123) of the second plate (120) both pass through the mounting channel (210) and extend out of the mounting channel (210).
8. The electronic device according to claim 7, characterized in that, The first end (1123) of the first plate (110) is folded toward one side of the first plate (110) and connected to the motherboard (300) of the electronic device. The second end (123) of the second plate (120) is folded toward one side of the second plate (120) and connected to the motherboard (300) of the electronic device. The first end (1123) of the first plate (110) and the second end (123) of the second plate (120) are oriented in opposite directions.
9. The electronic device according to claim 8, characterized in that, At least one of the first end (1123) of the first plate (110) and the second end (123) of the second plate (120) is provided with a first identification line (161), a second identification line (162) and a third identification line (163). Wherein: when the first end (1123) of the first plate (110) or the second end (123) of the second plate (120) is in a flattened state, the first marking line (161) and the second marking line (162) are arranged in parallel, and the third marking line (163) is located between the first marking line (161) and the second marking line (162), and is inclined relative to both the first marking line (161) and the second marking line (162); when the first end (1123) of the first plate (110) or the second end (123) of the second plate (120) is folded, the crease of the first plate (110) or the second plate (120) is arranged along the third marking line (163), and the first marking line (161) is perpendicular to the second marking line (162).
10. The electronic device according to claim 6, characterized in that, The first plate (110) has a first end (1123) and a third end (1124). When the bendable portion (130) is in a bent state, the second plate (120) is stacked on the first end (1123) of the first plate (110). The third end (1124) of the first plate (110) is located outside the mounting channel (210), and the first end (1123), the bendable portion (130), and the second plate (120) of the first plate (110) all pass through the mounting channel (210) and extend out of the mounting channel (210).
11. The electronic device according to claim 10, characterized in that, The bendable portion (130) is in a flattened state, and the first end (1123) of the first plate (110) and the second plate (120) are both connected to the motherboard (300) of the electronic device.