Circuit connection structure of printed circuit board assembly and printed circuit board assembly

By designing a printed circuit board component line connection structure including conductive connectors and through holes, the complicated problems of line shorting and disconnection in the prior art are solved, and a faster operation process is achieved.

CN223024649UActive Publication Date: 2025-06-24SHENZHEN CAR ENERGY NET CO LTD
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Patent Information

Application Number
CN202421772145.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-25
Publication Date
2025-06-24
Estimated Expiration
2034-07-25

AI Technical Summary

Technical Problem

In the prior art, the process of shorting and disconnecting printed circuit board components is cumbersome and requires a lot of time and cost.

Method used

A printed circuit board assembly line connection structure is designed, including a conductive connector, a first through-hole, a first pad and a second pad. The conductive connection member is arranged through the first through hole and is in contact with the first pad and the second pad respectively. When disconnection is required, simply remove the conductive connection from the first through-hole.

Benefits of technology

Simplifies the short-circuit and disconnection process of printed circuit board assembly lines, saving time and cost.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a circuit connection structure of a printed circuit board assembly and the printed circuit board assembly. The utility model provides a circuit connecting structure of a printed circuit board assembly. The circuit connecting structure comprises a conductive connecting piece, a first through hole formed in the printed circuit board assembly, a first bonding pad and a second bonding pad, the first bonding pad and the second bonding pad are not in direct contact, the conductive connecting piece penetrates through the first through hole, and the first bonding pad and the second bonding pad are in contact with the conductive connecting piece. According to the circuit connection structure of the printed circuit board assembly, when the printed circuit board assembly works normally, the conductive connecting piece penetrates through the first through hole, so that the first bonding pad and the second bonding pad can be ensured to be in a short-circuit state, and when the first bonding pad and the second bonding pad need to be disconnected, only the conductive connecting piece needs to be detached from the first through hole; therefore, the short-circuit and disconnection processes of the first bonding pad and the second bonding pad are relatively simple, and the time cost for short-circuit and disconnection of the circuit of the printed circuit board assembly is saved.
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Description

Technical Field

[0001] The utility model relates to the technical field of circuit boards, in particular to a circuit connection structure of a printed circuit board assembly and a printed circuit board assembly. Background Art

[0002] A circuit board can be called a printed wiring board, a printed circuit board or a PCB (Printed Circuit Board). As a support for electronic components, the PCB now plays an important role in all walks of life. A PCB usually refers to a printed wiring board without installed electronic components, while a printed circuit board with installed electronic components can usually be called a PCBA (Printed Circuit Board Assembly). For lines such as the PE ground wire on the printed circuit board assembly, they usually need to be short-circuited when the printed circuit board assembly is working normally, but during safety regulations and EMC (Electromagnetic Compatibility) tests, the PE ground wire may need to be disconnected. At this time, testers need to use a soldering iron or wire cutters to disconnect the corresponding line, and then need to weld the disconnected line after the test. The process is rather cumbersome and requires a lot of time cost. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a circuit connection structure of a printed circuit board assembly and a printed circuit board assembly, so as to solve the technical problem of the large time cost for short-circuiting and disconnecting the circuit of the printed circuit board assembly in the prior art.

[0004] The technical solution of the utility model is as follows. There is provided a circuit connection structure of a printed circuit board assembly, including a conductive connector, a first through hole formed in the printed circuit board assembly, a first solder pad and a second solder pad;

[0005] The first solder pad and the second solder pad do not directly contact, the conductive connector passes through the first through hole, and the first solder pad and the second solder pad are respectively in contact with the conductive connector.

[0006] Further, the first solder pad is connected to the ground, and the second solder pad is connected to the grounding end of the circuit to be grounded.

[0007] Further, the conductive connector is a metal connector.

[0008] Further, the metal connector is a metal screw.

[0009] Further, the circuit connection structure of the printed circuit board assembly further includes a gasket. The metal screw includes a threaded rod and a limiting portion protruding from the threaded rod. The gasket is sleeved on the threaded rod, and the gasket is disposed between the limiting portion and the printed circuit board assembly.

[0010] Further, the gasket is disposed between the limiting portion and the first pad, and the gasket is disposed between the limiting portion and the second pad.

[0011] Further, the circuit connection structure of the printed circuit board assembly further includes a fastener, and the fastener fixes the conductive connector on the printed circuit board assembly.

[0012] Further, the circuit connection structure of the printed circuit board assembly further includes a second through hole formed on the fastener. The conductive connector is partially received in the second through hole. A first thread is provided on the hole wall of the second through hole, and a second thread is provided on the conductive connector. The first thread and the second thread cooperate with each other.

[0013] Further, the circuit connection structure of the printed circuit board assembly further includes a blind hole formed on the fastener. The conductive connector is partially received in the blind hole. A third thread is provided on the hole wall of the blind hole, and a second thread is provided on the conductive connector. The third thread and the second thread cooperate with each other.

[0014] Another technical solution of the present invention is as follows. There is also provided a printed circuit board assembly, including the circuit connection structure of the printed circuit board assembly according to any one of the above technical solutions.

[0015] The beneficial effect of the present invention is that by not directly contacting the first pad and the second pad, the conductive connector is passed through the first through hole, and the first pad and the second pad are respectively in contact with the conductive connector; when the printed circuit board assembly is working normally, the conductive connector passes through the first through hole, which can ensure that the first pad and the second pad are in a short-circuited state. When the first pad and the second pad need to be disconnected, only the conductive connector needs to be removed from the first through hole; thus, the process of short-circuiting and disconnecting the first pad and the second pad is relatively simple, saving the time cost of short-circuiting and disconnecting the circuit of the printed circuit board assembly. Description of the Drawings

[0016] Figure 1 It is the first schematic diagram of the circuit connection structure of the printed circuit board assembly according to the embodiment of the present invention;

[0017] Figure 2 It is the top view of the circuit connection structure of the printed circuit board assembly according to the embodiment of the present invention;

[0018] Figure 3 It is the second schematic diagram of the circuit connection structure of the printed circuit board assembly according to the embodiment of the present invention;

[0019] Figure 4 It is the third schematic diagram of the circuit connection structure of the printed circuit board assembly according to the embodiment of the present invention.

[0020] Reference numerals: 1 - conductive connector; 2 - first through hole; 3 - first pad; 4 - second pad; 5 - gasket; 6 - fastener, 7 - second through hole, 8 - blind hole; 9 - printed circuit board assembly. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0022] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned accompanying drawings are used to distinguish similar objects, and do not necessarily need to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein.

[0023] Referring to "embodiments" herein means that the specific features, structures, or characteristics described in conjunction with the embodiments can be included in at least one embodiment of the present invention. The phrase appears in various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0024] Figure 1 It is the first schematic diagram of the circuit connection structure of the printed circuit board assembly according to the embodiment of the present invention. It should be noted that if there are substantially the same results, the present invention is not limited to Figure 1 the structure shown. As Figure 1 shown, the circuit connection structure of the printed circuit board assembly includes a conductive connector 1, a first through hole 2 formed in the printed circuit board assembly, a first pad 3, and a second pad 4;

[0025] The first pad 3 and the second pad 4 do not directly contact each other. The conductive connecting member 1 passes through the first through hole 2, and the first pad 3 and the second pad 4 are respectively in contact with the conductive connecting member 1.

[0026] In the embodiment of the present utility model, by making the first pad 3 and the second pad 4 not directly contact each other, making the conductive connecting member 1 pass through the first through hole 2, and making the first pad 3 and the second pad 4 respectively in contact with the conductive connecting member 1; when the printed circuit board assembly 9 is working normally, the conductive connecting member 1 passes through the first through hole 2, which can ensure that the first pad 3 and the second pad 4 are in a short-circuited state. When the first pad 3 and the second pad 4 need to be disconnected, only the conductive connecting member 1 needs to be removed from the first through hole 2; thus, the process of short-circuiting and disconnecting the first pad 3 and the second pad 4 is relatively simple, saving the time cost of short-circuiting and disconnecting the printed circuit board assembly lines.

[0027] In a specific embodiment, the top view of the printed circuit board assembly line connection structure is as Figure 2 shown. The first pad 3 and the second pad 4 can both be semi-circular to increase the contact area between the first pad 3 and the second pad 4 and the conductive connecting member 1. The conductive connecting member 1 can be made of a conductive material such as a metal material or a semiconductor material. From Figure 1 and Figure 2 it can be seen that Figure 1 can be Figure 2 the schematic cross-sectional structure diagram taken along the transverse A-A cutting line in Figure 2 The components and connecting wires of the printed circuit board assembly 9 in

[0028] In some embodiments, the first pad 3 is connected to the ground, and the second pad 4 is connected to the grounding end of the circuit to be grounded.

[0029] In a specific embodiment, the circuit to be grounded described above can be a circuit that needs to be tested for withstand voltage or an EMC circuit. Therefore, at this time, the second pad 4 is connected to the ground terminal of the circuit that needs to be tested for withstand voltage, or to the ground terminal of the EMC circuit, and the first pad 3 is connected to the ground. When the printed circuit board assembly 9 is working properly, the conductive connecting member 1 passes through the first through hole 2, which can ensure that the first pad 3 and the second pad 4 are in a short-circuited state. However, in the scenario of withstand voltage testing or EMC testing, the first pad 3 and the second pad 4 need to be disconnected. Just remove (pull out) the conductive connecting member 1 from the first through hole 2, and the disconnection of the first pad 3 and the second pad 4 can be achieved, thereby realizing the disconnection of the circuit to be tested for withstand voltage or the EMC circuit waiting for the grounding circuit from the ground, making the ground terminal of the circuit to be tested for withstand voltage or the EMC circuit waiting for the grounding circuit floating; when the printed circuit board assembly 9 leaves the factory and needs to work properly, the conductive connecting member 1 is passed through the first through hole 2 to ensure that the first pad 3 and the second pad 4 are in a short-circuited state.

[0030] In some embodiments, the conductive connecting member 1 is a metal connecting member.

[0031] In the embodiment of the present utility model, by making the conductive connecting member 1 a metal connecting member, its conductivity and reliability are ensured, which is convenient for short-circuiting or disconnecting the first pad 3 and the second pad 4.

[0032] In some embodiments, the metal connecting member is a metal screw.

[0033] In the embodiment of the present utility model, by making the metal connecting member a metal screw, and the metal screw has threads, so as to be conveniently passed through the first through hole 2 or removed from the first through hole 2.

[0034] In some embodiments, the printed circuit board assembly line connection structure further includes a gasket 5. The metal screw includes a threaded rod and a limiting portion protruding from the threaded rod. The gasket 5 is sleeved on the threaded rod, and the gasket 5 is disposed between the limiting portion and the printed circuit board assembly 9.

[0035] In the embodiment of the present utility model, by sleeving the gasket 5 on the threaded rod and disposing the gasket 5 between the limiting portion and the printed circuit board assembly 9, it is convenient to better fix the metal screw on the printed circuit board assembly 9.

[0036] In a specific embodiment, a second schematic diagram of the printed circuit board assembly line connection structure is as Figure 3 shown. The above-mentioned limiting portion can also be a screw head, and the gasket 5 can be made of an insulating material, such as plastic, etc.

[0037] In some embodiments, the gasket 5 is disposed between the limiting portion and the first pad 3, and the gasket 5 is disposed between the limiting portion and the second pad 4.

[0038] In the embodiment of the present utility model, by disposing the gasket 5 between the limiting portion and the first pad 3, and disposing the gasket 5 between the limiting portion and the second pad 4, it is convenient to better fix the metal screw on the printed circuit board assembly 9, and it can also reduce the friction of the limiting portion on the first pad 3 and the second pad 4, and protect the first pad 3 and the second pad 4.

[0039] In some embodiments, the printed circuit board assembly line connection structure further includes a fastener 6, and the fastener 6 fixes the conductive connector 1 on the printed circuit board assembly 9.

[0040] In the embodiment of the present utility model, by fixing the conductive connector 1 on the printed circuit board assembly 9 through the fastener 6, it is avoided that the conductive connector 1 easily falls off from the printed circuit board assembly 9.

[0041] In some embodiments, the printed circuit board assembly line connection structure further includes a second through hole 7 formed on the fastener 6, a part of the conductive connector 1 is received in the second through hole 7, a first thread is provided on the hole wall of the second through hole 7, a second thread is provided on the conductive connector 1, and the first thread is matched with the second thread.

[0042] In a specific embodiment, Figure 1 and Figure 3 For the printed circuit board assembly line connection structure shown, the fastener 6 has a second through hole 7, and the above fastener 6 can be a nut.

[0043] In the embodiment of the present utility model, by receiving a part of the conductive connector 1 in the second through hole 7 on the fastener 6, a first thread is provided on the hole wall of the second through hole 7, a second thread is provided on the conductive connector 1, and the first thread is matched with the second thread, it is convenient to fix the conductive connector 1 in the first through hole 2, and at the same time, it is convenient to remove the conductive connector 1 from the first through hole 2.

[0044] In some embodiments, the printed circuit board assembly line connection structure further includes a blind hole 8 formed on the fastener 6, a part of the conductive connector 1 is received in the blind hole 8, a third thread is provided on the hole wall of the blind hole 8, a second thread is provided on the conductive connector 1, and the third thread is matched with the second thread.

[0045] In a specific embodiment, the third schematic diagram of the printed circuit board assembly line connection structure is as Figure 4As shown, there is a blind hole 8 on the fastener 6.

[0046] In an embodiment of the present utility model, by partially accommodating the conductive connector 1 in the blind hole 8 on the fastener 6, a third thread is provided on the hole wall of the blind hole 8, and a second thread is provided on the conductive connector 1. The third thread cooperates with the second thread, which facilitates fixing the conductive connector 1 in the first through hole 2 and also facilitates removing the conductive connector 1 from the first through hole 2.

[0047] An embodiment of the present utility model provides a printed circuit board assembly, including the circuit connection structure of the printed circuit board assembly described in any of the above embodiments.

[0048] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0049] The above embodiments only represent the preferred embodiments of the present utility model, and the description is relatively specific and detailed, but it cannot be understood as a limitation to the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A printed circuit board assembly circuit connection structure, characterized in that: including a conductive connection member, a first through hole formed in a printed circuit board assembly, a first pad, and a second pad; The first pad and the second pad are not in direct contact with each other, the conductive connecting member passes through the first through hole, and the first pad and the second pad are in contact with the conductive connecting member respectively.

2. The printed circuit board assembly circuit connection structure according to claim 1, characterized in that: The first pad is connected to the ground, and the second pad is connected to the grounding terminal of the circuit to be grounded.

3. The printed circuit board assembly circuit connection structure according to claim 1, characterized in that: The conductive connecting piece is a metal connecting piece.

4. The printed circuit board assembly circuit connection structure according to claim 3, characterized in that: The metal connecting piece is a metal screw.

5. The printed circuit board assembly circuit connection structure according to claim 4, characterized in that: The printed circuit board assembly line connection structure also includes a gasket, the metal screw includes a threaded rod and a limiting portion protruding from the threaded rod, the gasket is sleeved on the threaded rod, and the gasket is arranged between the limiting portion and the printed circuit board assembly.

6. The printed circuit board assembly circuit connection structure according to claim 5, characterized in that: The gasket is disposed between the limiting portion and the first pad, and the gasket is disposed between the limiting portion and the second pad.

7. The printed circuit board assembly circuit connection structure according to claim 1, characterized in that: The printed circuit board assembly line connection structure further includes a fastener, which fixes the conductive connection member on the printed circuit board assembly.

8. The printed circuit board assembly circuit connection structure according to claim 7, characterized in that: The printed circuit board assembly line connection structure also includes a second through hole formed on the fastener, the conductive connector is partially accommodated in the second through hole, a first thread is provided on the hole wall of the second through hole, and a second thread is provided on the conductive connector, and the first thread matches the second thread.

9. The printed circuit board assembly circuit connection structure according to claim 7, characterized in that: The printed circuit board assembly line connection structure also includes a blind hole formed on the fastener, the conductive connector is partially accommodated in the blind hole, a third thread is provided on the hole wall of the blind hole, the conductive connector is provided with a second thread, and the third thread matches the second thread.

10. A printed circuit board assembly, characterized in that: It comprises the printed circuit board assembly line connection structure described in any one of claims 1-9.