Circuit board connector with long service life

Abstract

The utility model relates to a circuit board connector with long service life, which comprises a circuit board and an electric connecting seat arranged on the circuit board. A conducting layer is arranged on the surface of the circuit board, the electric connection seat comprises a seat body and a plurality of electric contact terminals arranged on the seat body, a guide groove is formed in the seat body, the two ends of the circuit board are embedded in the guide groove, the bottom ends of the electric contact terminals extend into the seat body and are electrically connected with the conducting layer in a telescopic mode, and the top ends of the electric contact terminals extend out of the seat body. According to the circuit board connector of the utility model, the positioning piece which can be adjusted in a telescopic manner is adopted, the circuit board and the electric connector which have large errors after installation can be positioned, the circuit board and the electric contact piece can be ensured to always keep electric contact through the arrangement of the telescopic electric contact piece, the problem of poor contact can be avoided, and the service life of the circuit board connector can be prolonged. The device is high in practicability and has high popularization significance.

Description

Technical Field

[0001] This utility model relates to a circuit board connector, and more particularly to a circuit board connector with a long service life. Background Technology

[0002] In existing technology, there is a type of circuit board connector that allows electronic modules to maintain electrical connection with the circuit board during movement or separation from the main body of the electronic device, enabling hot-plugging of the electronic modules. For example, Chinese Patent CN201711081289.4 describes a circuit board assembly and an electrical connector assembly including the circuit board assembly. However, the connection terminals between the circuit board and the electrical connector in this type of connector are fixed structures. Manufacturing and assembly factors can lead to errors in the positional relationship between the circuit board and the mating electrical connector, resulting in excessive or insufficient interference. Excessive interference leads to excessive wear on both the circuit board and the electrical connector, causing product failure after friction during long-distance relative movement. Conversely, insufficient interference results in poor contact between the conductive terminals of the circuit board and the electrical connector, leading to poor electrical connection and a short service life. Utility Model Content

[0003] Therefore, it is necessary to provide a circuit board connector with a long service life to address the shortcomings of existing technologies.

[0004] A long-life circuit board connector includes a circuit board and an electrical connector mounted on the circuit board. A conductive layer is disposed on the surface of the circuit board, and the electrical connector moves along the circuit board and remains electrically connected to the conductive layer. The electrical connector includes a base body and a plurality of electrical contact terminals disposed on the base body. A guide groove is provided on the base body, and both ends of the circuit board are embedded in the guide groove. The bottom ends of the electrical contact terminals extend into the base body and are electrically connected to the conductive layer, while their top ends extend out of the base body. Each electrical contact terminal includes a housing, an outer cover, a spring, a ball bearing, and an electrical contact element. The outer cover is fitted onto the housing, and a contact hole is provided at the bottom end of the housing. The ball bearing is disposed within the housing and extends out of the contact hole. The spring is disposed within the housing, with its bottom end abutting against the ball bearing and its top end mounted on the electrical contact element. The electrical contact element is T-shaped and includes an electrical contact post and a boss disposed at the bottom end of the electrical contact post. The outer diameter of the boss is larger than that of the electrical contact post. The top end of the spring is mounted on the electrical contact post and confined on the boss, while the top end of the electrical contact post extends out of the outer side of the housing.

[0005] Furthermore, it also includes several positioning components, which are mounted on the side of the base opposite to the electrical contact terminals. The inner end face of the positioning component is provided with a roller, which abuts against the bottom surface of the circuit board.

[0006] Furthermore, the positioning element includes a bolt and a compression spring sleeved on the bolt, and the roller is mounted on the bolt; the compression spring is sleeved on the outer surface of the bolt, one end of the compression spring abuts against the inner surface of the seat, and the other end abuts against the roller.

[0007] Furthermore, the bolt has a vertically extending elongated hole on its threaded shaft, and the roller is movably mounted on a mounting bracket, which passes through the elongated hole and moves up and down along the hole.

[0008] Furthermore, the base is made of plastic material, and the electrical contact terminal is made of metal material, with the electrical contact terminal integrally formed on the base.

[0009] Furthermore, the seat body includes a plate and side edges disposed on both sides of the plate, the side edges being L-shaped, and the guide grooves being disposed on the inner surfaces of the side edges.

[0010] Furthermore, a plurality of positioning holes are provided on the bottom surface of the side edge, and the positioning element passes through the positioning holes and abuts against the circuit board inward.

[0011] Furthermore, the base body has a horizontally extending mounting hole in the middle, and the positioning element and the electrical contact terminal are respectively disposed on two opposite sides of the base; the circuit board passes through the mounting hole.

[0012] In summary, the circuit board connector of this utility model employs a retractable and adjustable positioning component, which can position the circuit board and electrical connector even if there are significant errors after installation. By setting a retractable electrical contact component, it can ensure that the circuit board and the electrical contact component always maintain electrical contact, avoiding poor contact problems and extending service life. This utility model is highly practical and has significant potential for widespread application. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a circuit board connector with a long service life according to the present invention;

[0014] Figure 2 for Figure 1 Schematic diagram of the structure of the power connector;

[0015] Figure 3 for Figure 2 Schematic diagram of the center positioning component;

[0016] Figure 4 for Figure 3 Another structural schematic diagram of the positioning component;

[0017] Figure 5 for Figure 2 Schematic diagram of the structure of the electrical contact terminal;

[0018] Figure 6 for Figure 1 A schematic diagram of another embodiment of the power connector. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0020] like Figures 1 to 5 As shown, this is a long-life circuit board connector provided by the present invention. The long-life circuit board connector includes a circuit board 10 and an electrical connector 20 mounted on the circuit board 10. In this embodiment, the circuit board 10 is elongated, and a conductive layer 11 is provided on the surface of the circuit board 10. The conductive layer 11 is elongated, and the electrical connector 20 can move along the circuit board 11 and maintain electrical connection with the conductive layer 11.

[0021] The electrical connector 20 includes a base 21 and a plurality of electrical contact terminals 22 and a plurality of positioning members 23 disposed on the base 21. The base 21 includes a plate 211 and side edges 212 disposed on both sides of the plate 211. The side edges 212 are L-shaped, and a guide groove 213 is provided on the inner side of the side edge 212. The guide groove 213 is engaged with the two opposite sides of the circuit board 10 and can move along the circuit board 10. A plurality of positioning holes (not shown) are provided on the bottom surface of the side edge 212, and the positioning members 23 are inserted into the positioning holes and locked inwardly onto the circuit board 10. A plurality of electrical contact terminals 22 are mounted on the plate 211, and both ends of the terminals extend out of the outer side surface of the plate 211. In this embodiment, the base 21 is made of plastic material, and the electrical contact terminals 22 are integrally formed on the base 21. In addition, in another embodiment, such as Figure 6 As shown, the base 21a has a horizontally extending mounting hole 211a in the middle, and the positioning member 23a and the electrical contact terminal 22 are respectively disposed on two opposite sides of the base 21a.

[0022] The positioning component 23 includes a bolt 231, a compression spring 232 sleeved on the bolt 231, and a roller 233 mounted on the bolt 231. The bolt 231 has a vertically extending elongated hole 234 on its threaded shaft. The roller 233 is movably mounted on a mounting bracket 235, which passes through the elongated hole 234 and can move up and down along the hole. During installation, the positioning hole has an internal thread, and the bolt 231 is screwed into the positioning hole. The compression spring 232 is sleeved on the outer surface of the bolt 231 and located between the bottom surface of the guide groove 213 and the mounting bracket 235 of the roller 233; the roller 233 contacts the circuit board 10. Therefore, if there is a large positional error between the circuit board 10 and the electrical connector 20 during assembly, the positioning component 23 can be used for adjustment to ensure good contact between the roller 233 and the circuit board 10.

[0023] The electrical contact terminal 22 includes a housing 221, an outer cover 222, a spring 223, a ball bearing 224, and an electrical contact 225. The outer cover 222 is fitted onto the housing 221 and can be installed by snap-fit ​​or rotation, as long as it can be locked; the specific installation method is not limited. The bottom end of the housing 221 is bullet-shaped and gradually tapers, with a contact hole at the bottom end. The ball bearing 224 is installed inside the housing 221 and extends out of the contact hole. The spring 223 is located inside the housing 221, with its bottom end abutting against the ball bearing 224 and its top end mounted on the electrical contact 225. The electrical contact 225 is T-shaped and includes an electrical contact post 2251 and a boss 2252 located at the bottom end of the electrical contact post 2251. The outer diameter of the boss 2252 is larger than that of the electrical contact post 2251. The top end of the spring 223 is mounted on the electrical contact post 2251 and confined on the boss 2252. During installation, the top of the spring 223 is hung on the electrical contact 225, the ball bearing 224 is installed inside the housing 221, the installed spring is then installed inside the housing 221, and the outer cover 222 is then placed on the housing 221.

[0024] In use, the circuit board 10 is inserted into the guide groove 213 from one side of the electrical connector 20. If the installation is too tight, the bolt 231 is rotated outwards appropriately; if the installation is too loose, the bolt 231 is rotated inwards to adjust. During use, as the electrical connector 20 moves along the conductive layer 11, the ball bearing 224 can roll, thus avoiding severe wear in a certain part to a certain extent. Furthermore, when the ball bearing or electrical contact 224 is worn, the compressed spring 223 on the inner side will push the ball bearing or electrical contact 224 to both sides, thereby ensuring sufficient contact with the circuit board or the electrical contact that mates with the electrical contact 224.

[0025] In summary, the circuit board connector of this utility model adopts a retractable and adjustable positioning component, which can position the circuit board 10 and the electrical connector 20 even if there is a large error after installation. By setting a retractable electrical contact component, it can be ensured that the circuit board and the electrical contact component always maintain electrical contact, avoid the occurrence of poor contact problems, and improve the service life. This utility model has strong practicality and has strong promotional significance.

[0026] The above-described embodiments are merely one implementation of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A circuit board connector with a long service life, characterized in that: The device includes a circuit board and an electrical connector mounted on the circuit board. A conductive layer is disposed on the surface of the circuit board. The electrical connector moves along the circuit board and remains electrically connected to the conductive layer. The electrical connector includes a base and a plurality of electrical contact terminals disposed on the base. The base has guide grooves, and both ends of the circuit board are embedded in the guide grooves. The bottom ends of the electrical contact terminals extend into the base and are electrically connected to the conductive layer, while their top ends extend out of the base. Each electrical contact terminal includes a housing, an outer cover, a spring, a ball bearing, and an electrical contact element. The outer cover is fitted onto the housing. The bottom end of the housing has a contact hole. The ball bearing is disposed within the housing and extends out of the contact hole. The spring is disposed within the housing, with its bottom end abutting against the ball bearing and its top end mounted on the electrical contact element. The electrical contact element is T-shaped and includes an electrical contact post and a boss disposed at the bottom end of the electrical contact post. The outer diameter of the boss is larger than that of the electrical contact post. The top end of the spring is mounted on the electrical contact post and confined on the boss. The top end of the electrical contact post extends out of the outer side of the housing.

2. The long-life circuit board connector as described in claim 1, characterized in that: It also includes several positioning components, which are mounted on the side of the base opposite to the electrical contact terminals. The inner end face of the positioning component is provided with a roller, which abuts against the bottom surface of the circuit board.

3. The long-life circuit board connector as described in claim 2, characterized in that: The positioning element includes a bolt and a compression spring sleeved on the bolt, and the roller is mounted on the bolt; the compression spring is sleeved on the outer surface of the bolt, one end of the compression spring abuts against the inner surface of the seat, and the other end abuts against the roller.

4. The long-life circuit board connector as described in claim 3, characterized in that: The bolt has a vertically extending elongated hole on its threaded shaft. The roller is movably mounted on a mounting bracket, which passes through the elongated hole and moves up and down along the hole.

5. The long-life circuit board connector as described in claim 1, characterized in that: The base is made of plastic, and the electrical contact terminal is made of metal. The electrical contact terminal is integrally formed on the base.

6. The long-life circuit board connector as described in claim 2, characterized in that: The seat includes a plate and side edges disposed on both sides of the plate. The side edges are L-shaped, and the guide groove is disposed on the inner side of the side edge.

7. The long-life circuit board connector as described in claim 6, characterized in that: The bottom surface of the side edge is provided with several positioning holes, and the positioning element passes through the positioning holes and abuts against the circuit board inward.

8. The long-life circuit board connector as described in claim 2, characterized in that: The base has a horizontally extending mounting hole in the middle, and the positioning element and electrical contact terminal are respectively disposed on two opposite sides of the base; the circuit board passes through the mounting hole.

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