Circuit board capable of preventing scratching and copper leakage

Abstract

The utility model relates to the technical field of circuit boards, in particular to a circuit board capable of preventing scratching and copper leakage, which comprises a substrate provided with a plurality of conductive contacts, and further comprises an anti-scratching layer which comprises a plurality of upper elastic layers, the width of the upper elastic layers is equal to the distance between the conductive contacts, and the width of the lower elastic layers is equal to the distance between the conductive contacts. The upper elastic layer is not lower than the top surface of the conductive contact piece, the end part of the upper elastic layer is aligned with the front end of the conductive contact piece, the front end of the conductive contact piece refers to one end, close to the plate edge, of the conductive contact piece, and the upper elastic layer and the conductive contact piece are arranged in a staggered manner; according to the utility model, the conductive contact sheets can be prevented from being scratched to cause copper leakage, specifically, the upper elastic layer is supported between the conductive contact sheets, so that the conductive contact sheets can be prevented from being scratched, and the conductive contact sheets can be prevented from being scratched. The clamping friction caused by the height difference when other electronic products slide from a lower position to a higher position when the other electronic products are connected with the conductive contact piece in an inserting manner is reduced, so that the conductive contact piece can be prevented from being scratched to cause copper leakage.

Description

Technical Field

[0001] The present application relates to the technical field of circuit boards, and in particular to a circuit board capable of preventing scratches and copper leakage. Background Art

[0002] Circuit board, also known as circuit board, is an indispensable key component in electronic equipment. It carries the connection and information transmission between various electronic components. Circuit board is made of substrate material, and its surface is covered with precise conductive lines. These lines are intertwined to form a complex and orderly circuit network. Through the circuit board, the current can flow smoothly and the signal can be transmitted accurately.

[0003] The conductive contacts of the circuit board are processed by electroplating during molding, and their thickness is higher than other areas of the board. When connected to other electronic products, due to frequent friction, the conductive contacts will be scratched and copper will leak, resulting in poor impedance of the circuit board. This project aims to develop a circuit board that prevents scratches and copper leakage to solve the problem. Utility Model Content

[0004] In view of at least one of the above technical problems, the present application provides a circuit board for preventing scratches and copper leakage, and adopts the following technical solution to solve the problem.

[0005] According to one aspect of the present application, a circuit board for preventing scratches and copper leakage is provided, comprising a substrate, on which a plurality of conductive contacts are arranged, the conductive contacts have a thickness of 0.3 mm, and further comprising:

[0006] An anti-scratch layer, the anti-scratch layer is made of hard epoxy resin with a thickness of 0.5 mm, the anti-scratch layer includes a plurality of upper elastic layers, the upper elastic layers are made of silicone rubber with a thickness of 0.1 mm, the width of the upper elastic layer is equal to the distance between the conductive contacts, the height of the upper elastic layer is not lower than the top surface height of the conductive contacts, the end of the upper elastic layer is aligned with the front end of the conductive contacts, the front end of the conductive contacts refers to the end of the conductive contacts close to the edge of the board, and the upper elastic layers and the conductive contacts are staggered; and

[0007] A plurality of support parts, the support parts are connected to the bottom of the upper elastic layer, the bottom of the support parts are connected to the substrate, the height of the support parts close to the rear end of the conductive contact piece is not lower than the top surface height of the conductive contact piece, and the rear end of the conductive contact piece refers to Figure 1 The conductive contact shown in FIG. 1 is at one end away from the edge of the board.

[0008] When the connecting parts of other electronic products are in contact with the conductive contact sheets, it can reduce friction and prevent the conductive contact sheets from being scratched and leaking copper. When the connecting parts of the electronic products are in full contact with the conductive contact sheets, it will not affect the conductive connection between the conductive contact sheets and the connecting parts of other electronic products.

[0009] A groove is arranged at the top of the anti-scratch layer near the front end of the conductive contact piece, and the upper elastic layer is arranged in the groove; this structure enables the upper elastic layer and the anti-scratch layer to be connected together more stably.

[0010] The upper elastic layer is connected to the anti-scratch layer by bonding; the upper elastic layer and the anti-scratch layer are fixedly connected as a whole by glue hot pressing.

[0011] The connection end surface between the support portion and the upper elastic layer is an inclined structure; on the one hand, it can increase the contact surface, and on the other hand, it can play a guiding role when other electronic products are inserted to avoid jamming and friction.

[0012] A lower elastic layer is also provided at the bottom of the support portion, and the connection structure between the lower elastic layer and the support portion is the same as that between the upper elastic layer and the support portion; the lower elastic layer can work together with the upper elastic layer.

[0013] Several supporting parts are connected by connecting parts; the overall structure is more stable and the manufacturing difficulty is reduced.

[0014] The connecting part and the supporting part are an integrated structure; the integrated structure further improves the overall stability.

[0015] The front ends of the support portion and the upper elastic layer are both rounded structures; the rounded structures have a guiding function and are more conducive to connection with other electronic products.

[0016] This application has the following technical effects:

[0017] The utility model can prevent the conductive contact from being scratched and leaking copper. Specifically, an upper elastic layer is provided to support between the conductive contacts, thereby reducing the jamming friction caused by the height difference when other electronic products slide from a lower position to a higher position when plugged and connected with the conductive contacts, thereby preventing the conductive contact from being scratched and leaking copper. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 is a front view of the present application;

[0020] Figure 2 is a cross-sectional view of the anti-scratch layer in the present application;

[0021] Figure 3 It is a cross-sectional view of the conductive contact sheet in this application.

[0022] Reference numerals:

[0023] 1. Substrate; 2. Conductive contact sheet; 3. Anti-scratch layer; 31. Connecting part; 32. Supporting part; 33. Connecting end surface; 4. Upper elastic layer; 5. Lower elastic layer. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0025] In this embodiment of the present application, Figure 1-Figure 3 As shown, a circuit board for preventing scratches and copper leakage is provided, including a substrate 1, on which a plurality of conductive contacts 2 are arranged, the conductive contacts 2 have a thickness of 0.3 mm, and also include: an anti-scratch layer 3, the anti-scratch layer 3 is made of hard epoxy resin, with a thickness of 0.5 mm, the anti-scratch layer 3 includes a plurality of upper elastic layers 4, the upper elastic layers 4 are made of silicone rubber, with a thickness of 0.1 mm, the width of the upper elastic layer 4 is equal to the distance between the conductive contacts 2, the height of the upper elastic layer 4 is not lower than the top surface height of the conductive contact 2, the end of the upper elastic layer 4 is aligned with the front end of the conductive contact 2, the front end of the conductive contact 2 refers to the end of the conductive contact 2 close to the edge of the board, and the upper elastic layer 4 and the conductive contact 2 are staggered; and a plurality of support portions 32, the support portion 32 is connected to the bottom of the upper elastic layer 4, the bottom of the support portion 32 is connected to the substrate 1, the height of the rear end portion of the support portion 32 close to the conductive contact 2 is not lower than the top surface height of the conductive contact 2, the rear end portion of the conductive contact 2 refers to the Figure 1 The conductive contact 2 shown in FIG. 1 is at one end away from the edge of the board.

[0026] When the connecting part of other electronic products is in contact with the conductive contact sheet 2, it can be supported by the upper elastic layer 4 and maintained at the same height as the conductive contact sheet 2. When the connecting part of the electronic product is in full contact with the conductive contact sheet 2, it is pressed on the support part 32, which can press the upper elastic layer 4 downward, so that the height of the upper elastic layer 4 is slightly lower than the conductive contact sheet 2.

[0027] A groove is provided at the top of the anti-scratch layer 3 near the front end of the conductive contact sheet 2, and the upper elastic layer 4 is provided in the groove; this structure enables the upper elastic layer 4 and the anti-scratch layer 3 to be connected together more stably.

[0028] The upper elastic layer 4 is connected to the anti-scratch layer 3 by bonding; the upper elastic layer 4 and the anti-scratch layer 3 are fixedly connected as one body by glue hot pressing.

[0029] The connecting end surface 33 where the supporting portion 32 is connected to the upper elastic layer 4 is an inclined structure; on the one hand, it can increase the contact surface, and on the other hand, it can play a guiding role when other electronic products are inserted to avoid jamming and friction.

[0030] A lower elastic layer 5 is further disposed at the bottom of the support portion 32 . The connection structure between the lower elastic layer 5 and the support portion 32 is the same as that between the upper elastic layer 4 and the support portion 32 . The lower elastic layer 5 can work together with the upper elastic layer 4 .

[0031] Several supporting parts 32 are connected by connecting parts 31; the overall structure is more stable and the manufacturing difficulty is reduced.

[0032] The connecting portion 31 and the supporting portion 32 are an integrated structure; the integrated structure further improves the overall stability.

[0033] The front ends of the support portion 32 and the upper elastic layer 4 are both rounded structures; the rounded structures have a guiding function and are more conducive to connection with other electronic products.

[0034] Manufacturing process of the anti-scratch layer 3: After cutting, double-sided grooves are formed by controlled depth milling. After the upper elastic layer 4 is aligned and fitted to the double-sided grooves, they are fixed and connected by hot pressing, and then milling is performed to form a plurality of structural support parts 32 and the upper elastic layer 4.

[0035] Working principle: When the connecting part of other electronic products is in contact with the conductive contact sheet 2, it can be supported by the upper elastic layer 4 and maintained at the same height as the conductive contact sheet 2, reducing the jamming friction caused by the height difference when sliding from a lower position to a higher position, thereby preventing the conductive contact sheet 2 from being scratched and leaking copper. When the connecting part of the electronic product is in full contact with the conductive contact sheet 2, it is pressed on the support part 32, which can press the upper elastic layer 4 downward, so that the height of the upper elastic layer 4 is slightly lower than the conductive contact sheet 2, which does not affect the conductive connection between the conductive contact sheet 2 and the connecting part of other electronic products.

[0036] The above are only preferred embodiments of the present application, and do not constitute any formal limitation on the present application. Any technician familiar with the art can use the above disclosed methods and technical contents to make many possible changes and modifications to the technical solution of the present application without departing from the scope of the technical solution of the present application, or modify it into an equivalent embodiment of equivalent changes. Therefore, all equivalent changes made according to the shape, structure and principle of the present application without departing from the content of the technical solution of the present application should be included in the protection scope of the present application.

Claims

1. A circuit board for preventing scratches and copper leakage, comprising a substrate (1), on which a plurality of conductive contacts (2) are arranged, characterized in that: Also includes: an anti-scratch layer (3), the anti-scratch layer (3) comprising a plurality of upper elastic layers (4), the width of the upper elastic layer (4) being equal to the distance between the conductive contact sheets (2), the height of the upper elastic layer (4) being not less than the top surface height of the conductive contact sheet (2), the end of the upper elastic layer (4) being aligned with the front end of the conductive contact sheet (2), and the upper elastic layer (4) and the conductive contact sheet (2) being arranged in an alternating manner; as well as A plurality of support portions (32), wherein the support portions (32) are connected to the bottom of the upper elastic layer (4), the bottom of the support portions (32) are connected to the substrate (1), and the height of the support portions (32) close to the rear end of the conductive contact sheet (2) is not lower than the top surface height of the conductive contact sheet (2).

2. A circuit board for preventing scratches and copper leakage according to claim 1, characterized in that: The anti-scratch layer (3) is provided with a groove at the top near the front end of the conductive contact sheet (2), and the upper elastic layer (4) is arranged in the groove.

3. A circuit board for preventing scratches and copper leakage according to claim 1, characterized in that: The upper elastic layer (4) is connected to the anti-scratch layer (3) by bonding.

4. A circuit board for preventing scratches and copper leakage according to claim 1, characterized in that: The connection end surface (33) where the support portion (32) is connected to the upper elastic layer (4) is an inclined structure.

5. A circuit board for preventing scratches and copper leakage according to claim 2, characterized in that: A lower elastic layer (5) is also provided at the bottom of the support portion (32), and the connection structure between the lower elastic layer (5) and the support portion (32) is the same as the connection structure between the upper elastic layer (4) and the support portion (32).

6. A circuit board for preventing scratches and copper leakage according to claim 1, characterized in that: A plurality of the supporting parts (32) are connected via a connecting part (31).

7. A circuit board for preventing scratches and copper leakage according to claim 6, characterized in that: The connecting portion (31) and the supporting portion (32) are an integral structure.

8. A circuit board for preventing scratches and copper leakage according to claim 1, characterized in that: The front ends of the support portion (32) and the upper elastic layer (4) are both rounded structures.

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