Circuit board terminal

Abstract

The utility model relates to a circuit board terminal, which comprises a terminal body, one end of the terminal body is provided with a crimping part which is crimped with a wire, the other end of the terminal body is provided with an insertion tube part which is matched with an insertion hole of a circuit board, and the peripheral wall of the insertion tube part is provided with two elastic limiting arms which are symmetrically distributed and matched with the circuit board. The two elastic limiting arms abut against one side of the circuit board and form limiting matching of the two elastic limiting arms and the circuit board, two positioning arms are symmetrically arranged on the peripheral wall of the insertion tube part corresponding to one side of the two elastic limiting arms, the two limiting arms abut against the other side of the circuit board, and the two positioning arms are arranged on the peripheral wall of the insertion tube part corresponding to one side of the two elastic limiting arms. And a limiting space for placing a circuit board is formed between the two positioning arms and the two elastic limiting arms. The utility model has the advantages of simple structure, stable and reliable performance, convenient assembly and reliable connection.

Description

Technical Field

[0001] The utility model relates to a terminal, in particular to a circuit board terminal. Background Art

[0002] In electrotechnics, a terminal mostly refers to a wiring terminal, also called a connection terminal. A connection terminal is a fitting product used to achieve electrical connection and is classified into the category of connectors in industry. With the increasing level of industrial automation and the increasingly strict and precise requirements for industrial control, the usage of connection terminals is gradually increasing. With the development of the electronics industry, the application range of connection terminals is becoming wider and wider, and the types are also increasing. In addition to PCB board terminals, the most widely used ones also include hardware terminals, nut terminals, spring terminals, etc. The structural design of the existing circuit board terminals is relatively complex, the assembly of the terminals and the circuit board is not convenient, and the connection between the terminals and the circuit board is unreliable. The insertion force of the terminals into the circuit board is large while the extraction force is small, resulting in the terminals and the circuit board being prone to loosening and falling off. Summary of the Invention

[0003] The purpose of the utility model is to overcome the defects of the prior art and provide a circuit board terminal with a simple structure, stable and reliable performance, convenient assembly and reliable connection.

[0004] To achieve the above purpose, the utility model adopts a circuit board terminal, which includes a terminal body. One end of the terminal body has a crimping part for crimping with a wire, and the other end of the terminal body has an insertion tube part for cooperating with the insertion hole of the circuit board. There are two symmetrically distributed elastic limiting arms on the peripheral wall of the insertion tube part for cooperating with the circuit board. The two elastic limiting arms abut against one side of the circuit board and form a limiting cooperation between the two elastic limiting arms and the circuit board. On the peripheral wall of the insertion tube part, corresponding to one side of the two elastic limiting arms, two positioning arms are symmetrically arranged. The two limiting arms abut against the other side of the circuit board. A limiting space for placing the circuit board is formed between the two positioning arms and the two elastic limiting arms.

[0005] The beneficial effects of the above structure are as follows: Two elastic limiting arms and two positioning arms for limiting cooperation with the circuit board are respectively arranged on the insertion tube part of the terminal body, which can prevent the terminal body from loosening and falling off from the circuit board, thereby ensuring a more compact and reliable connection between the terminal body and the circuit board. And the terminal body is inserted into the insertion hole of the circuit board through the insertion tube part, which is convenient for the assembly of the terminal body and the circuit board, and the assembly is more convenient. Therefore, the circuit board terminal has the advantages of simple structure, stable and reliable performance, convenient assembly and reliable connection.

[0006] Particularly, one end of the insertion tube part has a guiding sleeve part for cooperating with the insertion hole. The guiding sleeve part can play a guiding role, reduce the insertion force between the terminal and the circuit board, and thus facilitate the insertion of the terminal into the circuit board, making the insertion more convenient.

[0007] Particularly, insertion guiding inclined surfaces are respectively arranged on the two elastic limiting arms and are matched with the insertion holes. The insertion guiding inclined surfaces of the elastic limiting arms can play a guiding role, reduce the insertion force between the terminal and the circuit board, and thus facilitate the insertion of the terminal into the circuit board, making the insertion more convenient.

[0008] Particularly, limiting planes are arranged on one side of the two positioning arms and are matched with the circuit board. The limiting planes of the positioning arms play a role in limiting the circuit board, can increase the pulling-out force between the terminal and the circuit board, and can ensure that the insertion of the terminal into the circuit board is more firm.

[0009] Particularly, two wire pressing pieces are symmetrically distributed on the crimping part, a crimping cavity is formed between the two wire pressing pieces, the wire is inserted into the crimping cavity, and the two wire pressing pieces are pressed against the insulating layer of the wire. The crimping part crimps the wire through the two wire pressing pieces, thus facilitating the connection between the crimping part and the wire and making the wiring more convenient.

[0010] Particularly, a wiring jack communicating with the crimping cavity is arranged in the inserting pipe part, and the conductor of the wire passes through the crimping cavity and is inserted into the wiring jack. The conductor of the wire is inserted into the wiring jack of the terminal, so as to ensure that the connection between the wire and the terminal is more firm and the contact is more reliable. Description of the Drawings

[0011] Figure 1 It is a three-dimensional view of an embodiment of the present utility model.

[0012] Figure 2 It is a cross-sectional view of an embodiment of the present utility model.

[0013] Figure 3 It is a three-dimensional view of the female terminal of an embodiment of the present utility model. Detailed Embodiment

[0014] As Figures 1 to 3 shown, an embodiment of the present utility model is a circuit board terminal, including a terminal body. One end of the terminal body 10 has a crimping part 11 for crimping with a wire 20, the other end of the terminal body 10 has an inserting pipe part 12 matched with the insertion hole 211 of a circuit board 21. Two elastic limiting arms 121 which are symmetrically distributed and matched with the circuit board 21 are arranged on the peripheral wall of the inserting pipe part 12. The two elastic limiting arms 121 abut against one side of the circuit board 21, and a limiting fit between the two elastic limiting arms 121 and the circuit board 21 is formed. Two positioning arms 122 are symmetrically arranged on the peripheral wall of the inserting pipe part 12 corresponding to one side of the two elastic limiting arms 121. The two limiting arms 122 abut against the other side of the circuit board 21. A limiting space 100 for placing the circuit board 21 is formed between the two positioning arms 122 and the two elastic limiting arms 121.

[0015] As Figure 2 , 3 shown, one end of the insertion tube portion 12 has a guiding sleeve portion 123 that mates with the insertion hole 211. The guiding sleeve portion can play a guiding role, reduce the insertion force between the terminal and the circuit board, facilitate the insertion of the terminal into the circuit board, and make the insertion more convenient. Insertion guiding slopes 1211 that mate with the insertion hole 211 are respectively provided on the two elastic limiting arms 121. The insertion guiding slopes of the elastic limiting arms can play a guiding role, reduce the insertion force between the terminal and the circuit board, facilitate the insertion of the terminal into the circuit board, and make the insertion more convenient. Limiting planes 1221 that mate with the circuit board 21 are provided on one side of the two positioning arms 122. The limiting planes of the positioning arms play a limiting role on the circuit board, can increase the pulling-out force between the terminal and the circuit board, and ensure a more firm connection between the terminal and the circuit board. Two wire pressing pieces 111 are symmetrically distributed on the crimping portion 11. A crimping cavity 110 is formed between the two wire pressing pieces 111. The wire 20 is inserted into the crimping cavity 110, and the two wire pressing pieces 111 are pressed against the insulating layer 201 of the wire 20. The crimping portion crimps the wire through the two wire pressing pieces, facilitating the connection between the crimping portion and the wire, and making the wiring more convenient. A wiring jack 120 communicating with the crimping cavity 110 is provided in the insertion tube portion 12. The conductor 202 of the wire 20 passes through the crimping cavity 110 and is inserted into the wiring jack 120. The conductor of the wire is inserted into the wiring jack of the terminal, ensuring a more firm connection and more reliable contact between the wire and the terminal.

[0016] Two elastic limiting arms and two positioning arms that are in limiting cooperation with the circuit board are respectively provided on the insertion tube portion of the terminal body, which can prevent the terminal body from loosening and falling off the circuit board, ensuring a more compact and reliable connection between the terminal body and the circuit board. Moreover, the terminal body is inserted into the insertion hole of the circuit board through the insertion tube portion, facilitating the assembly of the terminal body and the circuit board, making the assembly more convenient. Therefore, the circuit board terminal has the advantages of simple structure, stable and reliable performance, convenient assembly, and reliable connection.

Claims

1. A circuit board terminal, characterized in that: It includes a terminal body. One end of the terminal body has a crimping portion for crimping with a wire. The other end of the terminal body has an inserting tube portion that matches with the inserting hole of the circuit board. There are two symmetrically distributed elastic limiting arms on the peripheral wall of the inserting tube portion, which match with the circuit board. The two elastic limiting arms abut against one side of the circuit board, and form a limiting cooperation between the two elastic limiting arms and the circuit board. On the peripheral wall of the inserting tube portion, corresponding to one side of the two elastic limiting arms, two positioning arms are symmetrically arranged. The two limiting arms abut against the other side of the circuit board. A limiting space for placing the circuit board is formed between the two positioning arms and the two elastic limiting arms.

2. The circuit board terminal according to claim 1, wherein: One end of the inserting tube portion has a guiding sleeve portion that matches with the inserting hole.

3. The circuit board terminal according to claim 1 or 2, characterized in that: Inserting guiding slopes that match with the inserting hole are respectively arranged on the two elastic limiting arms.

4. The circuit board terminal according to claim 1 or 2, characterized in that: A limiting plane that matches with the circuit board is arranged on one side of the two positioning arms.

5. The circuit board terminal according to claim 1 or 2, characterized in that: Two wire pressing pieces are symmetrically distributed on the crimping portion. A crimping cavity is formed between the two wire pressing pieces. The wire is inserted into the crimping cavity, and the two wire pressing pieces press tightly on the insulating layer of the wire.

6. The circuit board terminal according to claim 5, characterized in that: A wiring jack that is communicated with the crimping cavity is arranged in the inserting tube portion. The conductor of the wire passes through the crimping cavity and is inserted into the wiring jack.

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