FPC structure of wearable product

Abstract

The embodiment of the utility model belongs to the technical field of flexible circuit boards. The utility model also relates to a wearable product FPC structure, which comprises an FPC main body, two sides of the FPC main body are respectively provided with a detection assembly, each detection assembly comprises a detection part arranged at the side of the FPC main body, the detection parts are bent along with the FPC main body, and the detection parts are used for assisting in detecting whether the FPC main body is broken or not. According to the invention, the detection assembly is arranged on the side of the FPC main body, and when the FPC main body is broken due to tearing or line damage, the detection part located on the side of the FPC main body is always influenced firstly, so that whether the FPC main body has a broken line risk or not can be quickly confirmed by detecting the integrity of the detection part, and early warning and quick identification are realized; therefore, the production efficiency is improved, the maintenance cost is reduced, the quality and reliability of the product are enhanced, in addition, the design also simplifies the troubleshooting process, and powerful support is provided for technical innovation and industrial upgrading of the intelligent wearable product.

Description

Technical Field

[0001] The utility model relates to the technical field of flexible circuit boards, and more specifically, to an FPC structure of a wearable product. Background Art

[0002] With the rapid development of science and technology, intelligence has become one of the core driving forces of modern life. The widespread application of intelligent technology has not only changed people's production and living styles, but also promoted technological innovation and industrial upgrading in related industries. Among them, smart wearable products, as the specific application of intelligent technology in the field of personal wearable devices, have attracted much attention from consumers in recent years. Smart wearable products, such as smart watches and smart bracelets, have quickly become hot-selling products on the market with their versatility and portability. These products not only have practical functions such as time display, health monitoring, and exercise recording, but also have won the favor of consumers with their diverse designs and personalized accessories. However, the design and production of smart wearable products also face some technical challenges. Due to the limitation of product size, how to achieve miniaturization and thinness while ensuring functionality is an issue that the design team needs to focus on. Among them, the quality and performance of flexible circuit boards (FPCs), as key components in smart wearable products, directly affect the overall performance and user experience of the product.

[0003] FPC has the advantages of light weight, bendability, and easy installation, making it very suitable for smart wearable products. However, during the installation and production testing process, FPC is prone to short circuits and other undesirable phenomena due to multiple bending. These undesirable conditions not only affect the overall performance and user experience of the product, but also in the actual production process, it is difficult to locate whether these defects are caused by FPC tearing, which increases the difficulty of solving the problem. Therefore, we have made improvements to this and proposed a FPC structure for wearable products.

[0004] For example, a Chinese patent (publication number CN214675852U) discloses an anti-fracture FPC circuit board, and its specification discloses: FPC flexible circuit board is a highly reliable and extremely flexible printed circuit board made of polyimide or polyester film as a substrate, with the characteristics of high wiring density, light weight, thin thickness, and good bendability. When the existing FPC circuit board is in use, because the circuit board is connected to circuit components, the circuit board is pulled or bent randomly during installation, which can easily cause the circuit board to break, and at the same time affect the reliability of circuit component installation and the normal use of the circuit board. The above patents can prove the defects of the existing technology. Utility Model Content

[0005] The technical problem to be solved by the embodiments of the present utility model is that FPC is prone to short circuit and other undesirable phenomena due to multiple bending. In the actual production process, it is difficult to locate whether these undesirable phenomena are caused by FPC tearing.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A wearable product FPC structure includes: an FPC body, both sides of the FPC body are provided with detection components, the detection component includes a detection part arranged at the side of the FPC body, the detection part follows the bending of the FPC body, and the detection part is used to assist in detecting whether the FPC body is broken. By arranging the detection component on the side of the FPC body, when the FPC body is broken due to tearing or line damage, the detection part located on the side of the FPC body is often affected first. Therefore, by detecting the integrity of the detection part, it is possible to quickly confirm whether the FPC body has a risk of breaking, thereby achieving early warning and rapid identification, which not only improves production efficiency and reduces maintenance costs, but also enhances product quality and reliability. In addition, the design simplifies the troubleshooting process, providing strong support for technological innovation and industrial upgrading of smart wearable products.

[0008] As an improved manner of the present invention, the detection part is a test line, and the test line is arranged on the FPC body.

[0009] As an improved manner of the utility model, the test line is made of the same material as the conductive layer of the FPC body.

[0010] As an improved manner of the present invention, a test piece is further arranged between two points of the test line and the FPC body, and the test piece is used to assist in detecting whether the test line is broken so as to realize the detection of the FPC body.

[0011] As an improved manner of the present invention, the test piece includes two test points, and the two test points are respectively fixedly connected between two points of the test line and the FPC body.

[0012] As an improved manner of the utility model, FPC pads and FPC connector male seats are respectively provided at both ends of the FPC body, and the positions of the two test points are respectively close to the FPC pads and the FPC connector male seat.

[0013] As an improved manner of the present invention, the FPC body has a plurality of bending areas, and the bending areas are used for bending the FPC body.

[0014] As an improved manner of the utility model, a plurality of through holes are provided at each of the bending areas.

[0015] As an improved manner of the utility model, the FPC body includes an FPC base layer, a conductive layer body is connected to the FPC base layer, the conductive layer body is connected to an adhesive layer, and the adhesive layer is connected to a packaging layer.

[0016] As an improved manner of the utility model, a cavity is provided between the conductive layer body and the adhesive layer, at least two connecting layers are provided in the cavity, and two ends of the connecting layer are respectively fixedly connected to the conductive layer body on both sides of the cavity.

[0017] Compared with the prior art, the embodiments of the present invention mainly have the following beneficial effects:

[0018] The present application sets a detection component on the side of the FPC body. When the FPC body is broken due to tearing or line damage, the detection part located on the side of the FPC body is often affected first. Therefore, by detecting the integrity of the detection part, it is possible to quickly confirm whether there is a risk of broken wires in the FPC body, thereby achieving early warning and rapid identification. This not only improves production efficiency and reduces maintenance costs, but also enhances product quality and reliability. In addition, the design also simplifies the troubleshooting process, providing strong support for technological innovation and industrial upgrading of smart wearable products. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the FPC structure of the wearable product provided in this application;

[0020] Figure 2 A schematic diagram of the partial structure of the FPC structure of the wearable product provided in this application;

[0021] Figure 3 A schematic diagram of the partial structure of the FPC structure of the wearable product provided in this application;

[0022] Figure 4 A schematic diagram of the structure of the through hole of the FPC structure of the wearable product provided in this application;

[0023] Figure 5 This is a schematic diagram of the connection layer structure of the wearable product FPC structure provided in this application.

[0024] Indicated in the figure:

[0025] 1. FPC body; 101. FPC base layer; 102. Conductive layer body; 103. Adhesive layer; 104. Packaging layer; 2. FPC pad; 3. FPC connector male seat; 4. Test line; 401. Test point; 5. Connection layer; 6. Through hole. DETAILED DESCRIPTION

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which the present invention belongs; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. Reference to "embodiments" herein means that specific features, structures, or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of this phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0027] As mentioned in the background technology, FPC has the advantages of light weight, bendability, and easy installation, and is very suitable for smart wearable products. However, during the installation and production testing process, FPC is prone to short circuits and other adverse phenomena due to multiple bending. These adverse conditions not only affect the overall performance and user experience of the product, but also in the actual production process, it is difficult to locate whether these defects are caused by FPC tearing, which increases the difficulty of solving the problem.

[0028] In order to solve this technical problem, the utility model provides a wearable product FPC structure.

[0029] Specifically, please refer to Figure 1-Figure 3 The FPC structure of wearable products specifically includes:

[0030] The FPC body 1 has detection components on both sides thereof. The detection components include a detection portion arranged at the side of the FPC body 1. The detection portion bends along with the FPC body 1 and is used to assist in detecting whether the FPC body 1 is broken.

[0031] The FPC structure of a wearable product provided by the utility model sets a detection component on the side of the FPC body 1. When the FPC body 1 is broken due to tearing or line damage, the detection part located on the side of the FPC body 1 is often affected first. Therefore, by detecting the integrity of the detection part, it is possible to quickly confirm whether there is a risk of breaking the FPC body 1, thereby achieving early warning and rapid identification. This not only improves production efficiency and reduces maintenance costs, but also enhances product quality and reliability. In addition, the design simplifies the troubleshooting process, providing strong support for technological innovation and industrial upgrading of smart wearable products.

[0032] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0033] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0034] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0035] Embodiment 1 of the FPC structure of the wearable product of the utility model

[0036] Please refer to Figure 1-Figure 3 The FPC structure of the wearable product of the utility model includes: an FPC body 1, and detection components are arranged on both sides of the FPC body 1. The detection component includes a detection part arranged at the side of the FPC body 1, the detection part follows the bending of the FPC body 1, and the detection part is used to assist in detecting whether the FPC body 1 is broken. By arranging the detection component on the side of the FPC body 1, when the FPC body 1 is broken due to tearing or line damage, the detection part located on the side of the FPC body 1 is often affected first. Therefore, by detecting the integrity of the detection part, it is possible to quickly confirm whether the FPC body 1 has a risk of breaking, and realize early warning and rapid identification, which not only improves production efficiency and reduces maintenance costs, but also enhances product quality and reliability. In addition, the design also simplifies the troubleshooting process, and provides strong support for technological innovation and industrial upgrading of smart wearable products.

[0037] Further, such as Figure 1-Figure 3 As shown, the detection part is a test line 4, which is arranged on the FPC body 1, and a 0.1mm width copper wire is arranged in the middle, which will not affect the normal wiring of other functional pins.

[0038] Furthermore, the test line 4 is made of the same material as the conductive layer of the FPC body 1. The conductive layer of the FPC body 1 is often made of copper foil, so the test line 4 can also be made of copper foil. The width of the test line 4 is 0.1 mm, which will not affect the normal wiring of other functional pins. A multimeter can be used to measure the conductivity or resistance value of the test line 4 to confirm whether the test line 4 is broken. Since the test line 4 is made of the same material as the conductive layer of the FPC body 1, if the FPC body 1 is torn or the line is damaged, it is generally broken from the outside to the inside, and it is mainly the conductive layer that is broken that affects the use. That is to say, if the FPC body 1 is broken due to tearing, the test line 4 located on the side of the FPC body 1 is also broken. In this way, it is possible to quickly confirm whether the FPC body 1 is at risk of breaking.

[0039] Further, such as Figure 1-Figure 3As shown, a test piece is also arranged between two points of the test line 4 and the FPC body 1. The test piece is used to assist in detecting whether the test line 4 is broken so as to realize the detection of the FPC body 1. The setting of the test piece can provide a test area for the detection of the test line 4, so that the tester can perform positioning testing.

[0040] Further, such as Figure 1-Figure 3 As shown, the test piece includes two test points 401, and the two test points 401 are respectively fixedly connected between two points of the test line 4 and the FPC body 1. The test points 401 are made of the same material as the test line 4 to reduce material differences, and the test points 401 are preferably circular, and the diameter of the circle is larger than the width of the test line 4, so as to facilitate testing.

[0041] Further, such as Figure 1-Figure 3 As shown, FPC pads 2 and FPC connector male seats 3 are respectively provided at both ends of the FPC body 1, and the positions of the two test points 401 are respectively close to the FPC pads 2 and the FPC connector male seats 3. The FPC pads 2 are generally referred to as solder points, which are connection points for connecting circuits or components through soldering; the FPC connector male seats 3 are mainly used to realize the connection between the FPC body 1 and other circuit boards or electronic devices.

[0042] Embodiment 2 of the FPC structure of the utility model wearable product

[0043] The FPC structure of the wearable product of the utility model is further that the FPC body 1 has a plurality of bending areas, and the bending areas are used for bending the FPC body 1.

[0044] Further, such as Figure 4 As shown, a number of through holes 6 are provided at each bending area. The provision of the through holes 6 can reduce the stress when the FPC body 1 is bent, making the bending process of the FPC body 1 smoother and reducing the risk of damage to the FPC body 1 when bending. The presence of the through holes 6 actually introduces some "holes" or "gaps" on the FPC body 1. These structures make the FPC body 1 more susceptible to deformation when subjected to external forces, thereby increasing its flexibility. In the bending area, this increased flexibility makes it easier for the FPC body 1 to bend into a desired shape. The provision of the through holes 6 can be easily achieved through mechanical or laser methods, and this method has little effect on the overall performance of the FPC body 1.

[0045] Embodiment 3 of the FPC structure of the wearable product of the utility model

[0046] The FPC structure of the wearable product of the utility model is further as follows: Figure 5As shown, the FPC body 1 includes an FPC base layer 101 , a conductive layer body 102 is connected to the FPC base layer 101 , the conductive layer body 102 is connected to an adhesive layer 103 , and the adhesive layer 103 is connected to a packaging layer 104 . The conductive layer of the FPC body 1 is the conductive layer body 102 .

[0047] Further, such as Figure 5 As shown, a cavity is provided between the conductive layer body 102 and the adhesive layer 103, and at least two connecting layers 5 are provided in the cavity. The connecting layers 5 are wavy, and the two ends of the connecting layers 5 are respectively fixedly connected to the conductive layer body 102 on both sides of the cavity. The arrangement of the cavity divides the conductive layer body 102 into two parts, and the two parts are connected by at least two connecting layers 5. This not only facilitates the bending of the FPC body 1, but also adopts the arrangement of at least two connecting layers 5 so that when some of the connecting layers 5 are broken, the remaining connecting layers 5 can continue to function to make the conductive layer body 102 conductive.

[0048] The wavy design of the connecting layer 5 allows it to have a certain amount of expansion and contraction space when bending, thereby reducing stress concentration and reducing the risk of wire breakage; the wavy connecting layer 5 itself is more flexible than a straight line. During the bending process, this flexibility can help the FPC body 1 better adapt to various bending angles and shapes, further reducing the risk of wire breakage; in the bending area, direct bending of the conductive layer body 102 may cause tearing due to stress concentration. By dividing the conductive layer body 102 into two and connecting them using the wavy connecting layer 5, the risk of such tearing can be reduced. This design not only reduces the risk of wire breakage, but also improves the overall reliability of the FPC body 1. Under long-term use and frequent bending, the FPC body 1 can maintain stable performance and reduce failures and maintenance costs.

[0049] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. A wearable product FPC structure, characterized in that: include: An FPC body (1), wherein both sides of the FPC body (1) are provided with detection components, wherein the detection components comprise a detection portion provided at the side of the FPC body (1), the detection portion follows the bending of the FPC body (1), and the detection portion is used to assist in detecting whether the FPC body (1) is broken.

2. The wearable product FPC structure according to claim 1, characterized in that: The detection part is a test line (4), and the test line (4) is arranged on the FPC body (1).

3. The FPC structure of a wearable product according to claim 2, characterized in that: The test line (4) is made of the same material as the conductive layer of the FPC body (1).

4. The wearable product FPC structure according to claim 3, characterized in that: A test piece is also provided between two points of the test line (4) and the FPC body (1), and the test piece is used to assist in detecting whether the test line (4) is broken so as to detect the FPC body (1).

5. The wearable product FPC structure according to claim 4, characterized in that: The test piece comprises two test points (401), and the two test points (401) are respectively fixedly connected between two points of the test line (4) and the FPC body (1).

6. The FPC structure of a wearable product according to claim 5, characterized in that: FPC soldering pads (2) and FPC connector male seats (3) are respectively provided at both ends of the FPC body (1), and the positions of the two test points (401) are respectively close to the FPC soldering pads (2) and the FPC connector male seats (3).

7. The FPC structure of a wearable product according to claim 1 or 6, characterized in that: The FPC body (1) has a plurality of bending areas, and the bending areas are used for bending the FPC body (1).

8. The FPC structure of a wearable product according to claim 7, characterized in that: A plurality of through holes (6) are provided at each bending area.

9. The wearable product FPC structure according to claim 1, characterized in that: The FPC body (1) comprises an FPC base layer (101), a conductive layer body (102) is connected to the FPC base layer (101), the conductive layer body (102) is connected to an adhesive layer (103), and the adhesive layer (103) is connected to a packaging layer (104).

10. The wearable product FPC structure according to claim 9, characterized in that: A cavity is provided between the conductive layer body (102) and the adhesive layer (103), at least two connection layers (5) are provided in the cavity, and two ends of the connection layer (5) are respectively fixedly connected to the conductive layer body (102) at two sides of the cavity.

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