Terminal and conductive structure

Abstract

The utility model discloses a terminal and a conductive structure. The terminal comprises a sheet-shaped first terminal, a cylindrical second terminal and a connecting nail. A mounting hole is formed in the end part of the first terminal in a penetrating manner, and a mounting ring capable of being embedded into the mounting hole is arranged at one end, facing the first terminal, of the second terminal in an extending manner. Particularly, the purpose of supporting the mounting ring at the joint of the second terminal and the first terminal is achieved, so that the connection strength between the column-type terminal and the row-type terminal can be improved; the cable is connected into the threaded hole of the nail rod through the bolt, and the connection strength between the column type terminal and the cable can be improved through the arrangement of the connection nail. Therefore, the problem of poor contact caused by looseness between the cylindrical terminal and the cable and looseness between the cylindrical terminal and the row-type terminal when the cable is subjected to large pulling force by adopting the conductive structure of the terminal can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a terminal and a conductive structure. Background Art

[0002] Some existing high-voltage and high-current connectors adopt the way of terminal end face contact to meet the transmission of larger current, that is, plug terminals and socket terminals composed of row terminals and cylindrical terminals are arranged in the plug and / or socket connectors. The row terminals and the cylindrical terminals are connected by riveting or welding. The row terminals of the plug terminals and the socket terminals are conductively connected by a transfer terminal. The other end of the row terminal is conductively connected to the cable through the cylindrical terminal. Specifically, when the cable is conductively connected to the cylindrical terminal, it is necessary to connect with the internal thread on the inner wall of the cylindrical terminal by means of a bolt. However, since the existing cylindrical terminals and row terminals are generally made of copper or copper alloy materials with low hardness, when the cable is subjected to a large pulling force, it is easy to cause looseness between the cylindrical terminal and the cable, and between the cylindrical terminal and the row terminal, resulting in poor contact. Summary of the Utility Model

[0003] In view of this, the purpose of the utility model is to provide a terminal and a conductive structure to solve the problem that when the cable is subjected to a large pulling force, it is easy to cause looseness between the cylindrical terminal and the cable, and between the cylindrical terminal and the row terminal, resulting in poor contact.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is: a terminal, including a first terminal in the shape of a sheet, a second terminal in the shape of a cylinder, and a connecting nail; an installation hole is penetrated through the end of the first terminal, an installation ring that can be embedded into the installation hole is extended at one end of the second terminal facing the first terminal, the connecting nail includes a nail head and a nail rod connected to each other, the hardness of the connecting nail is greater than that of the first terminal and the second terminal, the nail rod is inserted into the inner side of the second terminal and the nail head is located on both sides of the first terminal with the second terminal to clamp the first terminal, and a threaded hole is axially opened at one end of the nail rod away from the first terminal.

[0005] In some embodiments, the height of the installation ring is not greater than the depth of the installation hole, and the outer peripheral wall of the installation ring and the inner peripheral wall of the installation hole are connected by riveting or welding.

[0006] In some embodiments, the outer peripheral wall of the installation ring and the inner peripheral wall of the installation hole are connected by riveting, and at least one of the outer peripheral wall of the installation ring and the inner peripheral wall of the installation hole is provided with a plurality of first riveting teeth along the circumferential direction, and the first riveting teeth are arranged along the axial direction of the second terminal.

[0007] In some embodiments, the end of the nail rod is lower than or flush with the end surface of the second terminal away from the first terminal, and the outer peripheral wall of the nail rod is connected to the inner peripheral wall of the second terminal by riveting or welding.

[0008] In some embodiments, a plurality of second riveting teeth are circumferentially disposed on at least one of the outer circumferential wall of the nail rod and the inner circumferential wall of the second terminal, and the second riveting teeth are disposed along the axial direction of the nail rod.

[0009] In some embodiments, the second riveting teeth are disposed on the outer peripheral wall of the nail rod.

[0010] In some embodiments, the threaded hole is a blind hole.

[0011] In some embodiments, the first terminal is straight-shaped or L-shaped.

[0012] In some embodiments, the first terminal and the second terminal are made of copper / copper alloy; and the connecting nail is made of iron / iron alloy.

[0013] The utility model provides a conductive structure, comprising two terminals, wherein first terminals of the two terminals are conductively connected via a transfer terminal.

[0014] In some embodiments, a transfer spring for conducting electricity is disposed in the transfer terminal.

[0015] Another conductive structure of the utility model comprises a sheet-shaped third terminal and at least one of the terminals, wherein the third terminal is conductively connected to the terminal via a transfer terminal.

[0016] In some embodiments, a transfer spring for conducting electricity is disposed in the transfer terminal.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows: a connecting nail is installed in the second cylindrical terminal of the utility model, and the nail rod of the connecting nail serves to support the second terminal, especially to support the mounting ring at the connection between the second terminal and the first terminal, thereby improving the connection strength between the column-type terminal and the row-type terminal; at the same time, the hardness of the connecting nail is greater than that of the first terminal and the second terminal, and a threaded hole is axially provided at one end of the nail rod of the connecting nail away from the first terminal, and the cable is connected to the threaded hole of the nail rod by a bolt. The setting of the connecting nail can improve the connection strength between the column-type terminal and the cable; thereby avoiding the problem that the conductive structure of the above-mentioned terminal is easily loosened between the cylindrical terminal and the cable, and between the cylindrical terminal and the row-type terminal when the cable is subjected to a large pulling force, resulting in poor contact. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0019] Figure 1 A schematic diagram of the structure of the terminal provided by the utility model;

[0020] Figure 2 for Figure 1 An exploded view of the terminals shown;

[0021] Figure 3 for Figure 1 a cross-sectional view of the terminal shown;

[0022] Figure 4 This is a schematic structural diagram of one of the conductive structures provided by the utility model.

[0023] The following are marked in the figure:

[0024] 1. Terminal; 2. Third terminal; 3. Transfer terminal; 4. Transfer spring;

[0025] 10. first terminal; 101. mounting hole;

[0026] 20, second terminal; 201, mounting ring; 202, first riveting tooth;

[0027] 30. Connecting nail; 301. Nail head; 302. Nail rod; 303. Threaded hole; 304. Second riveting tooth. DETAILED DESCRIPTION

[0028] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0029] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0030] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0031] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0032] A terminal, such as Figures 1 - 3As shown, it includes a sheet-shaped first terminal 10, a cylindrical second terminal 20, and a connecting pin 30. The first terminal 10 is in a shape of a straight line or an L shape. An installation hole 101 is penetrated through the end of the first terminal 10. One end of the second terminal 20 facing the first terminal 10 extends with an installation ring 201 that can be embedded into the installation hole 101. The connecting pin 30 includes a pin head 301 and a pin rod 302 connected to each other. The hardness of the connecting pin 30 is greater than that of the first terminal 10 and the second terminal 20. The pin rod 302 is inserted into the inside of the second terminal 20, and the pin head 301 and the second terminal 20 are located on both sides of the first terminal 10 and clamp the first terminal 10. A threaded hole 303 is axially opened at one end of the pin rod 302 away from the first terminal 10, and the threaded hole 303 is a blind hole. In the utility model, a connecting pin 30 is installed in the cylindrical second terminal 20. The pin rod 302 of the connecting pin 30 serves to support the second terminal 20, especially to support the installation ring 201 at the connection between the second terminal 20 and the first terminal 10, thereby improving the connection strength between the columnar terminal and the row-type terminal. At the same time, the hardness of the connecting pin 30 is greater than that of the first terminal 10 and the second terminal 20, and a threaded hole 303 is axially opened at one end of the pin rod 302 of the connecting pin 30 away from the first terminal 10. The cable is connected to the threaded hole 303 of the pin rod 302 through a bolt. The setting of the connecting pin 30 can improve the connection strength between the columnar terminal and the cable. Therefore, it can avoid the problem that when the cable is subjected to a large pulling force in the conductive structure using the above terminals, it is easy to cause looseness between the cylindrical terminal and the cable, and between the cylindrical terminal and the row-type terminal, resulting in poor contact.

[0033] In an embodiment, as Figure 1 and Figure 3 shown, the height of the installation ring 201 is not greater than the depth of the installation hole 101, and the outer peripheral wall of the installation ring 201 and the inner peripheral wall of the installation hole 101 are connected by riveting or welding. In this embodiment, the outer peripheral wall of the installation ring 201 and the inner peripheral wall of the installation hole 101 are connected by riveting. At least one of the outer peripheral wall of the installation ring 201 and the inner peripheral wall of the installation hole 101 is provided with a plurality of first riveting teeth 202 along the circumferential direction. Specifically, considering the convenience of processing and cost, the first riveting teeth 202 are provided on the outer peripheral wall of the installation ring 201, and the first riveting teeth 202 are arranged along the axial direction of the second terminal 20.

[0034] In an embodiment, as Figure 1 and Figure 3As shown, in order to facilitate the connection of the cable, the end of the nail rod 302 is lower than or flush with the end face of the second terminal 20 away from one end of the first terminal 10, and the outer peripheral wall of the nail rod 302 is riveted or welded to the inner peripheral wall of the second terminal 20; further, a plurality of second riveting teeth 304 are circumferentially arranged on at least one of the outer peripheral wall of the nail rod 302 and the inner peripheral wall of the second terminal 20. Specifically, considering the convenience of processing and the influence on the strength of the mounting ring 201, the second riveting teeth 304 are arranged on the outer peripheral wall of the nail rod 302, and the second riveting teeth 304 are arranged along the axial direction of the nail rod 302.

[0035] In an embodiment, the first terminal 10 and the second terminal 20 are made of copper / copper alloy, preferably electrolytic copper material, and the surface of the electrolytic copper material is electroplated with nickel of 1-3 μm and silver of 3-5 μm in sequence; the connecting nail 30 is made of iron / iron alloy, preferably carbon steel material, and the surface of the carbon steel material is electroplated with a zinc layer and a nickel layer in sequence, and the total thickness is not less than 5 μm.

[0036] A conductive structure provided by the present invention includes two terminals 1 as described above, and the first terminals 10 of the two terminals 1 are electrically connected through a transfer terminal 3, and a transfer reed 4 for conducting electricity is arranged in the transfer terminal 3.

[0037] Another conductive structure of the present invention, as Figure 4 shown, includes a sheet-shaped third terminal 2 and at least one terminal as described above. The third terminal 2 and the terminal 1 are electrically connected through a transfer terminal 3, and a transfer reed 4 for conducting electricity is arranged in the transfer terminal 3.

[0038] Although some specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are only for illustration and not for limiting the scope of the present invention. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A terminal, characterized in that: It includes a sheet-shaped first terminal, a cylindrical second terminal and a connecting nail; a mounting hole is penetrated at the end of the first terminal, and a mounting ring that can be embedded in the mounting hole is extended from one end of the second terminal facing the first terminal. The connecting nail includes a nail head and a nail rod that are connected to each other. The hardness of the connecting nail is greater than that of the first terminal and the second terminal. The nail rod is inserted into the inner side of the second terminal and the nail head and the second terminal are located on both sides of the first terminal and clamp the first terminal. A threaded hole is axially opened at one end of the nail rod away from the first terminal.

2. A terminal according to claim 1, characterized in that: The height of the mounting ring is not greater than the depth of the mounting hole, and the outer peripheral wall of the mounting ring and the inner peripheral wall of the mounting hole are connected by riveting or welding.

3. A terminal according to claim 2, characterized in that: The outer circumferential wall of the mounting ring and the inner circumferential wall of the mounting hole are riveted to each other, and a plurality of first riveting teeth are circumferentially arranged on at least one of the outer circumferential wall of the mounting ring and the inner circumferential wall of the mounting hole, and the first riveting teeth are arranged along the axial direction of the second terminal.

4. A terminal according to claim 1, characterized in that: The end of the nail rod is lower than or flush with the end surface of the second terminal away from the first terminal, and the outer peripheral wall of the nail rod is connected to the inner peripheral wall of the second terminal by riveting or welding.

5. A terminal according to claim 4, characterized in that: A plurality of second riveting teeth are arranged along the circumferential direction on at least one of the outer circumferential wall of the nail rod and the inner circumferential wall of the second terminal, and the second riveting teeth are arranged along the axial direction of the nail rod.

6. A terminal according to claim 5, characterized in that: The second riveting teeth are arranged on the outer peripheral wall of the nail rod.

7. A terminal according to claim 1, characterized in that: The threaded hole is a blind hole.

8. A terminal according to claim 1, characterized in that: The first terminal is in a straight shape or an L shape.

9. A terminal according to claim 1, characterized in that: The first terminal and the second terminal are made of copper / copper alloy; the connecting nail is made of iron / iron alloy.

10. A conductive structure, characterized in that: The invention comprises two terminals as claimed in any one of claims 1 to 9, wherein first terminals of the two terminals are conductively connected via a transfer terminal.

11. A conductive structure, characterized in that: It comprises a sheet-shaped third terminal and at least one terminal according to any one of claims 1 to 9, wherein the third terminal is conductively connected to the terminal via a transfer terminal.

12. A conductive structure according to claim 10 or 11, characterized in that: A transfer spring for conducting electricity is arranged in the transfer terminal.

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