FPC board

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By designing the main body of the FPC board with assembly holes, extension boards and plug-in parts, the problem of many wire harnesses and easy to break when used in complex product internal spaces is solved, achieving a longer service life and higher product quality.

CN222602660UActive Publication Date: 2025-03-11HANGZHOU JIEFENG TECH CO LTD

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Patent Information

Application Number: CN202421147140.7
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-05-24
Publication Date: 2025-03-11
Estimated Expiration: 2034-05-24

AI Technical Summary

Technical Problem

When used in complex product internal spaces, existing FPC boards have many wire harnesses and are prone to tear and have a short service life, especially when rotating parts are easily damaged by tension.

Method used

An FPC board is designed, including an FPC board main body, assembly hole, extension board and plug-in part. The FPC board main body can be installed on the motor to avoid rotating with the rotation axis, and to replace multiple wire harnesses with multiple extension boards and plug-in parts to reduce the complexity of the internal space.

Benefits of technology

It effectively extends the service life of the FPC board, reduces the complexity of internal space caused by the large number of wire harnesses, saves costs, and improves product quality.

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Abstract

The utility model provides an FPC board, and relates to the technical field of flexible circuit boards, the FPC board comprises an FPC board main body, the FPC board main body is provided with an assembly hole, and the assembly hole and the FPC board main body are concentrically arranged; a plurality of extension plates are arranged on the peripheral side of the FPC board main body, one end of each extension plate is connected with the FPC board main body, and the other end of each extension plate is provided with an insertion part. According to the FPC board provided by the utility model, the FPC board main body is provided with the assembly hole, the FPC board main body can be sleeved on the motor and cannot rotate along with the rotation of the rotating shaft of the motor, and one FPC board main body can replace a plurality of wire harnesses, so that a complicated internal space caused by a plurality of wire harnesses is avoided, the service life of the FPC board is prolonged, the cost is saved, and the product quality is greatly improved.

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Description

Technical Field

[0001] The utility model relates to the technical field of flexible circuit boards, in particular to an FPC board. Background Art

[0002] Flexible printed circuit (FPC) is a printed circuit board with special functions. It is bendable, thin, lightweight, highly reliable, highly flexible, and easy to install. It is often used in consumer electronics (such as security monitoring), automotive electronics, aerospace and other products.

[0003] At present, conventional FPC is used as a bridge to connect two circuits, mainly one-to-one connection. When a product has a complicated internal space structure and clear product function requirements, then the conventional one-to-one single FPC may need many roots. When there are many FPCs in the small and complex internal space of the product, it will appear very complicated, especially in the rotatable shaking head product of the monitoring product. When it rotates, the internal wiring harness also rotates. If the number of rotations is too many, it will affect the service life of the FPC. In severe cases, it will be torn apart by the pulling force during rotation. Utility Model Content

[0004] The purpose of the utility model is to provide an FPC board to alleviate the technical problems of the existing FPC board such as short service life and easy tearing.

[0005] The utility model provides an FPC board, comprising an FPC board main body, wherein an assembly hole is provided on the FPC board main body, and the assembly hole is concentrically arranged with the FPC board main body;

[0006] A plurality of extension plates are provided on the outer peripheral side of the FPC board main body. One end of the extension plate is connected to the FPC board main body, and the other end is provided with a plug-in portion.

[0007] In an optional embodiment, one or more fixing holes are provided on the FPC board body.

[0008] In an optional embodiment, three fixing holes are provided on the FPC board body.

[0009] In an optional embodiment, three pairs of plug-in parts are provided on the FPC board body.

[0010] In an optional embodiment, the FPC board body includes a single-layer copper foil substrate; and no more than four extension boards are provided on the FPC board body.

[0011] In an optional embodiment, the FPC board body includes a multi-layer copper foil substrate; and four or more extension boards are provided on the FPC board body.

[0012] In an optional embodiment, the FPC board body is provided with a first plug-in portion, a second plug-in portion, a third plug-in portion, a fourth plug-in portion, a fifth plug-in portion and a sixth plug-in portion; the first plug-in portion and the fourth plug-in portion are used in conjunction with each other, the second plug-in portion and the fifth plug-in portion are used in conjunction with each other, and the third plug-in portion and the sixth plug-in portion are used in conjunction with each other.

[0013] In an optional embodiment, the circuit between the first plug-in portion and the fourth plug-in portion, and the circuit between the second plug-in portion and the fifth plug-in portion are located on the same copper foil substrate.

[0014] In an optional embodiment, the circuit between the third plug-in part and the sixth plug-in part is located on the same copper foil substrate, and the circuit between the third plug-in part and the sixth plug-in part and the circuit between the first plug-in part and the fourth plug-in part are located on different copper foil substrates.

[0015] In an optional embodiment, the first plug-in portion, the second plug-in portion, and the third plug-in portion are all gold finger type plugs.

[0016] The FPC board provided by the utility model has an FPC board body with an assembly hole. The FPC board body can be sleeved on the motor and will not rotate with the rotation of the motor's shaft. Moreover, one FPC board body can replace multiple wiring harnesses, avoiding the complicated internal space caused by multiple wiring harnesses, and enhancing the service life of the FPC, saving costs, and greatly improving the quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of the FPC board structure provided by an embodiment of the present utility model.

[0019] Icon: 100-FPC board body; 200-assembly hole; 300-extension plate; 400-fixing hole; 600-first plug-in part; 700-second plug-in part; 800-third plug-in part; 900-fourth plug-in part; 110-fifth plug-in part; 120-sixth plug-in part. DETAILED DESCRIPTION

[0020] The terms "first", "second", "third", etc. are only used to distinguish and describe, and do not indicate the order of arrangement, nor can they be understood as indicating or implying relative importance.

[0021] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0022] In the description of this application, it should be noted that the terms "inside", "outside", "left", "right", "up", "down", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on this application.

[0023] In the description of this application, unless otherwise clearly specified and limited, the terms "set", "install", "connected" and "connect" 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 an indirect connection through an intermediate medium, or it can be a connection between the internal parts of two elements.

[0024] The technical solution of this application will be clearly and completely described below with reference to the accompanying drawings.

[0025] Reference Figure 1 The present invention provides an FPC board, comprising an FPC board body 100, wherein an assembly hole 200 is provided on the FPC board body 100, and the assembly hole 200 is concentrically arranged with the FPC board body 100;

[0026] A plurality of extension plates 300 are provided on the outer periphery of the FPC board body 100 . One end of the extension plate is connected to the FPC board body, and the other end is provided with a plug-in portion.

[0027] In some embodiments, the FPC board body 100 of the FPC board has an assembly hole 200, and the FPC board body 100 can be sleeved on the rotating shaft of the motor. Generally, the FPC board body 100 is sleeved on the drive shaft exposed outside the motor; a plurality of extension plates 300 are provided on the FPC board body 100, and each extension plate 300 is provided with a plug-in portion; that is, the FPC board body 100 can replace multiple wiring harnesses, thereby avoiding the complicated internal space caused by the large number of wiring harnesses, and enhancing the service life of the FPC, saving costs, and greatly improving the quality of the product.

[0028] In an optional embodiment, one or more fixing holes 400 are provided on the FPC board body 100 .

[0029] In an optional embodiment, three fixing holes 400 are provided on the FPC board body 100 .

[0030] In order to prevent the FPC board body 100 from rotating, one or more fixing holes 400 are provided on the FPC board body 100, and generally three fixing holes 400 are provided. The setting of the fixing holes 400 does not affect the connection of the circuit between the two plug-in parts. The fixing posts are inserted into the fixing holes 400, so that the FPC board body 100 cannot rotate, that is, the problem of the FPC board body 100 being torn apart by the pulling force due to the rotation of the FPC board body 100 is avoided.

[0031] The inner diameters of the multiple fixing holes can be the same or different, and the fixing holes can also be other shapes, such as rectangular, polygonal, etc. The fixing holes match the housing or other fixing columns on the motor, thereby making the FPC board less likely to rotate.

[0032] According to the different positions of the plug-in parts on the FPC board body, the positions of the fixing holes are also changed accordingly to avoid the fixing hole settings affecting the circuit settings.

[0033] In an optional embodiment, three pairs of plug-in parts are provided on the FPC board body 100 .

[0034] In some embodiments, the FPC board body 100 has six plug-in parts, and every two plug-in parts form a pair, that is, the FPC board body 100 can replace three one-to-one single FPC boards, or two plug-in parts correspond to one plug-in part, etc.

[0035] In an optional embodiment, the FPC board body 100 includes a single-layer copper foil substrate; and no more than four extension plates 300 are disposed on the FPC board body 100 .

[0036] In an optional embodiment, the FPC board body 100 includes two layers of copper foil substrates; and four or more extension boards 300 are provided on the FPC board body 100 .

[0037] In some embodiments, depending on the number of plug-in parts set on the FPC board main body 100, when the FPC board main body 100 is provided with less than four plug-in parts, the FPC board main body 100 generally adopts a single-layer copper foil substrate, that is, when no more than four extension plates 300 are provided on the FPC board main body 100, the FPC board main body 100 adopts a single-layer copper foil substrate; the FPC board main body 100 with a single-layer substrate can meet the requirements of setting two circuits; when a pair of two plug-in parts are set adjacent to each other, the FPC board main body 100 can be provided with more circuits; according to actual conditions, the single-layer copper foil substrate is generally only used to set one or two circuits or one circuit branches out multiple circuits, etc.

[0038] That is, when the FPC board main body 100 is provided with four or more extension plates 300 , the FPC board main body 100 uses a two-layer copper foil substrate.

[0039] Generally, the copper foil substrate of the FPC board body 100 is used to set circuits on the upper and lower sides, and the circuits can extend from one copper foil substrate to the other. That is, the circuit of the first plug-in part extends from one copper foil substrate to the other copper foil substrate and connects at the fourth plug-in part;

[0040] Alternatively, the circuit of the first plug-in portion extends from the front surface of a copper foil substrate to the back surface of the copper foil substrate and is connected to the fourth plug-in portion.

[0041] In an optional embodiment, the FPC board body 100 is provided with a first plug-in portion 600, a second plug-in portion 700, a third plug-in portion 800, a fourth plug-in portion 900, a fifth plug-in portion 110 and a sixth plug-in portion 120; the first plug-in portion 600 and the fourth plug-in portion 900 are used in conjunction with each other, the second plug-in portion 700 and the fifth plug-in portion 110 are used in conjunction with each other, and the third plug-in portion 800 and the sixth plug-in portion 120 are used in conjunction with each other.

[0042] In an optional embodiment, the circuit between the first plug-in portion 600 and the fourth plug-in portion 900 and the circuit between the second plug-in portion 700 and the fifth plug-in portion 110 are located on the same copper foil substrate.

[0043] The circuit between the first plug-in portion 600 and the fourth plug-in portion 900 and the circuit between the second plug-in portion 700 and the fifth plug-in portion 110 are located on the same surface of the same copper foil substrate, or on different surfaces.

[0044] In an optional embodiment, the circuit between the third plug-in portion 800 and the sixth plug-in portion 120 is located on the same copper foil substrate, and the circuit between the third plug-in portion 800 and the sixth plug-in portion 120 and the circuit between the first plug-in portion 600 and the fourth plug-in portion 900 are located on different copper foil substrates.

[0045] In some embodiments, the FPC board body 100 has a first plug-in portion 600, a second plug-in portion 700, a third plug-in portion 800, a fourth plug-in portion 900, a fifth plug-in portion 110 and a sixth plug-in portion 120; generally, the first plug-in portion 600 is arranged between the second plug-in portion 700 and the third plug-in portion 800, and the third plug-in portion 800 and the sixth plug-in portion 120 are symmetrically arranged on both sides of the FPC board body 100; a fourth plug-in portion 900 is arranged on the side of the third plug-in portion 800 away from the first plug-in portion 600; and a fifth plug-in portion 110 is arranged between the fourth plug-in portion 900 and the sixth plug-in portion 120.

[0046] In an optional embodiment, the first plug-in portion 600 , the second plug-in portion 700 , and the third plug-in portion 800 are all gold finger type plugs.

[0047] Generally, the widths of the first plug portion, the second plug portion, and the third plug portion increase sequentially, and the number of circuits increases sequentially.

[0048] In some embodiments, the first plug part and the second plug part are connected to the third plug part at the same time, that is, one end of the line has one plug part and the other end has multiple plug parts, and two plug parts are connected to three plug parts through the line, etc.

[0049] The FPC board body 100 of the FPC board provided by the present invention has an assembly hole 200. The FPC board body 100 can be mounted on the motor and will not rotate with the rotation of the motor's shaft. Moreover, one FPC board body 100 can replace multiple wiring harnesses, avoiding the complicated internal space caused by multiple wiring harnesses, and enhancing the service life of the FPC, saving costs, and greatly improving product quality.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An FPC board, characterized in that: It comprises an FPC board body (100), on which an assembly hole (200) is arranged, and the assembly hole (200) is arranged concentrically with the FPC board body (100); A plurality of extension plates (300) are arranged on the outer peripheral side of the FPC board main body (100), one end of the extension plate is connected to the FPC board main body, and the other end is provided with a plug-in portion.

2. The FPC board according to claim 1, characterized in that: The FPC board body (100) is provided with one or more fixing holes (400).

3. The FPC board according to claim 2, characterized in that: The FPC board body (100) is provided with three fixing holes (400).

4. The FPC board according to claim 3, characterized in that: The FPC board body (100) is provided with three pairs of plug-in parts.

5. The FPC board according to claim 1, characterized in that: The FPC board body (100) comprises a single-layer copper foil substrate; and no more than four extension boards (300) are arranged on the FPC board body (100).

6. The FPC board according to claim 1, characterized in that: The FPC board body (100) comprises two layers of copper foil substrates; and more than four extension boards (300) are arranged on the FPC board body (100).

7. The FPC board according to claim 1, characterized in that: The FPC board body (100) is provided with a first plug-in portion (600), a second plug-in portion (700), a third plug-in portion (800), a fourth plug-in portion (900), a fifth plug-in portion (110) and a sixth plug-in portion (120); the first plug-in portion (600) and the fourth plug-in portion (900) are used in conjunction with each other, the second plug-in portion (700) and the fifth plug-in portion (110) are used in conjunction with each other, and the third plug-in portion (800) and the sixth plug-in portion (120) are used in conjunction with each other.

8. The FPC board according to claim 7, characterized in that: The circuit between the first plug-in part (600) and the fourth plug-in part (900), and the circuit between the second plug-in part (700) and the fifth plug-in part (110) are located on the same copper foil substrate.

9. The FPC board according to claim 7, characterized in that: The circuit between the third plug-in part (800) and the sixth plug-in part (120) is located on the same copper foil substrate, and the circuit between the third plug-in part (800) and the sixth plug-in part (120) and the circuit between the first plug-in part (600) and the fourth plug-in part (900) are located on different copper foil substrates.

10. The FPC board according to claim 7, characterized in that: The first plug-in portion (600), the second plug-in portion (700) and the third plug-in portion (800) are all gold finger type plugs.