High-voltage large-current single-reverse claw torsion spring terminal

Abstract

The utility model relates to a high-voltage large-current single reverse claw torsion spring terminal, and relates to the technical field of terminals, the high-voltage large-current single reverse claw torsion spring terminal comprises a terminal main body and a single reverse claw torsion spring terminal, the terminal main body comprises a plugging end and a crimping end, the crimping end is provided with a crimping hole, the plugging end is provided with a mounting hole, the single reverse claw torsion spring terminal is arranged in the mounting hole, and the single reverse claw torsion spring terminal is arranged in the mounting hole. The single reverse claw torsion spring terminal comprises a torsion spring terminal main body and a reverse claw part arranged at one end of the torsion spring terminal main body. According to the torsion spring terminal, one end of the torsion spring terminal main body is provided with the reverse claw part, compared with a torsion spring terminal main body of which the two ends are provided with the reverse claw parts, the torsion spring terminal main body has a simpler current path, and meanwhile, contact points of the reverse claw part and the torsion spring terminal main body are reduced, so that the contact points with a heating effect are reduced; and the effect of low temperature rise is achieved under the condition that the connection stability of the reverse claw part is kept.

Description

Technical Field

[0001] The present application relates to the field of terminal technology, and in particular to a high-voltage and high-current single-claw torsion spring terminal. Background Art

[0002] Terminal blocks are accessories used to achieve electrical connections and are classified as connectors in the industrial sector. With the increasing degree of industrial automation and increasingly stringent and precise industrial control requirements, the use of terminal blocks has gradually increased. With the development of the electronics industry, the use of terminal blocks has become increasingly broad, and the variety of terminal blocks has also increased.

[0003] The terminals currently developed on the market are primarily torsion spring terminals and reverse claw torsion spring terminals. Torsion spring terminals are secured by a stainless steel gland, and the contact area between the torsion spring and the socket is primarily the arc portion at each end of the torsion spring. Reverse claw torsion spring terminals are interference-riveted against the socket using ribs at both ends of the torsion spring, and the contact area with the socket is primarily the rib portion. Torsion spring terminals have the advantage of low temperature rise compared to reverse claw torsion spring terminals, and reverse claw torsion spring terminals have the advantage of high stability compared to torsion spring terminals. Therefore, a single torsion spring terminal or reverse claw torsion spring terminal cannot simultaneously meet the requirements of high-voltage and high-current connections, and there are issues that need to be improved in terms of stability and temperature rise control under high-voltage current.

[0004] With respect to the above-mentioned related technologies, the inventors believe that a single torsion spring terminal and a reverse claw torsion spring terminal cannot simultaneously meet the requirements of stability and low temperature rise of high-voltage and high-current connections. Utility Model Content

[0005] In order to solve the above technical problems, the present application provides a high-voltage and high-current single-claw torsion spring terminal.

[0006] This application provides a high-voltage, high-current single-claw torsion spring terminal, which adopts the following technical solutions:

[0007] A high-voltage, high-current single-ended claw torsion spring terminal comprises a terminal body and a single-ended claw torsion spring terminal. The terminal body comprises a plug-in end and a crimping end. The crimping end is provided with a crimping hole. The plug-in end is provided with a mounting hole. The single-ended claw torsion spring terminal is arranged in the mounting hole. The single-ended claw torsion spring terminal comprises a torsion spring terminal body and a reverse claw portion arranged at one end of the torsion spring terminal body.

[0008] By adopting the above-mentioned technical solution, the present application provides a reverse claw portion at one end of the torsion spring terminal body. Compared to a torsion spring terminal body with reverse claw portions at both ends, this changes the direction of current flow, resulting in a simpler current path and reducing temperature rise. It also reduces the number of contact points between the reverse claw portion and the torsion spring terminal body. The uneven material distribution of the reverse claw portion increases the temperature rise caused by increased contact points. Providing a single reverse claw portion at one end reduces the number of contact points with a temperature rise effect, thereby achieving a low temperature rise while maintaining the connection stability of the reverse claw portion.

[0009] Preferably, the torsion spring terminal body includes a first fixing ring, a second fixing ring, a plurality of inner bars for connecting the first fixing ring and the second fixing ring, and an inner sleeve sleeved on the outside of the inner bars, the inner bars extend obliquely along the axial direction of the first fixing ring and the second fixing ring, the reverse claw part is connected to the second fixing ring, the reverse claw part abuts against the inner sleeve, and the end of the inner sleeve away from the reverse claw part abuts against the inner wall of the mounting hole.

[0010] By adopting the above technical solution, the reverse claw portion is provided on the second fixing ring, thereby improving the installation stability of the second fixing ring.

[0011] Preferably, the first fixing ring is arranged at an end of the mounting hole away from the opening, the second fixing ring is arranged at an end of the mounting hole close to the opening, and the anti-claw part is arranged at an end of the mounting hole close to the opening.

[0012] By adopting the above technical solution, the friction resistance encountered by the first fixing ring is greater than that of the second fixing ring, thereby improving the installation stability of the first fixing ring, and the reverse claw part improves the installation stability of the second fixing ring, thereby improving the installation stability of the single reverse claw torsion spring terminal.

[0013] Preferably, an outer sleeve is provided on the outer side of the reverse claw part, and the outer sleeve is used to fix the reverse claw part.

[0014] By adopting the above technical solution, the outer sleeve is used to fix the reverse claw part, thereby improving the installation stability of the reverse claw part.

[0015] Preferably, the width of the first fixing ring is greater than the width of the second fixing ring.

[0016] By adopting the above technical solution, the width of the first fixing ring is greater than the width of the second fixing ring, so that the contact area between the first fixing ring and the inner wall of the inner sleeve is larger, and the friction resistance encountered by the first fixing ring is greater, thereby improving the installation stability of the first fixing ring, and further improving the connection stability between the single reverse claw torsion spring terminal and the terminal body.

[0017] In summary, this application has the following beneficial technical effects:

[0018] 1. This invention provides a reverse claw portion at one end of the torsion spring terminal body, thereby maintaining the connection stability of the reverse claw portion and achieving a low temperature rise by simplifying the current path and reducing the number of temperature-rising contact points. Thus, the single reverse claw torsion spring terminal simultaneously meets the requirements of high-voltage and high-current connection stability and low temperature rise.

[0019] 2. The reverse claw part is arranged at the end of the mounting hole close to the opening, the width of the first fixing ring is greater than the width of the second fixing ring, and the first fixing ring is arranged at the end of the mounting hole away from the opening, which improves the connection stability between the single reverse claw torsion spring terminal and the terminal body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of a high-voltage and high-current single-reverse claw torsion spring terminal;

[0021] Figure 2 It is a cross-sectional structural diagram of a high-voltage and high-current single-claw torsion spring terminal;

[0022] Figure 3 This is a partial structural diagram of the SLR torsion spring terminal;

[0023] Figure 4 This is a partial structural diagram of the SLR torsion spring terminal.

[0024] Explanation of the accompanying drawings: 1. Terminal body; 11. Plug-in end; 111. Mounting hole; 12. Crimping end; 121. Crimping hole; 2. Single reverse claw torsion spring terminal; 21. Torsion spring terminal body; 211. First fixing ring; 212. Second fixing ring; 213. Inner grid bar; 214. Inner sleeve; 22. Reverse claw part; 3. Outer sleeve. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1-4 This application is described in further detail.

[0026] The embodiment of the present application discloses a high-voltage and high-current single-claw torsion spring terminal.

[0027] Reference Figure 1 and Figure 2A high-voltage, high-current, single-ended claw torsion spring terminal includes a terminal body 1 and a single-ended claw torsion spring terminal 2. The terminal body 1 includes a plug-in end 11 and a crimping end 12. The crimping end 12 defines a crimping hole 121. The plug-in end 11 defines a mounting hole 111. The single-ended claw torsion spring terminal 2 is disposed in the mounting hole 111. The single-ended claw torsion spring terminal 2 includes a torsion spring terminal body 21 and a reverse claw portion 22 disposed at one end of the torsion spring terminal body 21. An outer sleeve 3 is provided on the outer side of the reverse claw portion 22 for securing the reverse claw portion 22.

[0028] Reference Figure 2 、 Figure 3 and Figure 4 The torsion spring terminal body 21 includes a first fixing ring 211, a second fixing ring 212, a plurality of inner bars 213 for connecting the first fixing ring 211 and the second fixing ring 212, and an inner sleeve 214 sleeved on the outside of the inner bars 213. One end of the inner bar 213 is fixedly connected to the first fixing ring 211, and the other end is fixedly connected to the second fixing ring 212. The inner bar 213 extends obliquely along the axial direction of the first fixing ring 211 and the second fixing ring 212. The reverse claw portion 22 is fixedly connected to the second fixing ring 212, and the reverse claw portion 22 abuts against the inner sleeve 214. The end of the inner sleeve 214 away from the reverse claw portion 22 abuts against the inner wall of the mounting hole 111.

[0029] The first fixing ring 211 is disposed at the end of the mounting hole 111 away from the opening, the second fixing ring 212 is disposed at the end of the mounting hole 111 close to the opening, and the reverse claw portion 22 is disposed at the end of the mounting hole 111 close to the opening. The width of the first fixing ring 211 is greater than that of the second fixing ring 212.

[0030] The implementation principle of a high-voltage, high-current single-reverse claw torsion spring terminal in an embodiment of the present application is as follows: A reverse claw portion 22 is provided at one end of the torsion spring terminal body 21. Compared to a torsion spring terminal body 21 having reverse claw portions 22 provided at both ends, this changes the direction of current flow, thereby providing a simpler current path and reducing temperature rise. At the same time, the number of contact points between the reverse claw portion 22 and the torsion spring terminal body 21 is reduced. The uneven material distribution of the reverse claw portion 22 increases the number of contact points, leading to increased temperature rise. Providing a single reverse claw portion 22 at one end reduces the number of contact points with a temperature-raising effect, thereby achieving a low-temperature rise while maintaining the connection stability of the reverse claw portion 22.

[0031] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A high-voltage, high-current single-claw torsion spring terminal, characterized by: The invention comprises a terminal body (1) and a single-ended claw torsion spring terminal (2), wherein the terminal body (1) comprises a plug-in end (11) and a crimping end (12), the crimping end (12) is provided with a crimping hole (121), the plug-in end (11) is provided with a mounting hole (111), the single-ended claw torsion spring terminal (2) is arranged in the mounting hole (111), and the single-ended claw torsion spring terminal (2) comprises a torsion spring terminal body (21) and a reverse claw portion (22) arranged at one end of the torsion spring terminal body (21).

2. The high-voltage, high-current single-claw torsion spring terminal according to claim 1, characterized in that: The torsion spring terminal body (21) comprises a first fixing ring (211), a second fixing ring (212), a plurality of inner bars (213) for connecting the first fixing ring (211) and the second fixing ring (212), and an inner sleeve (214) sleeved on the outer side of the inner bars (213), wherein the inner bars (213) extend obliquely along the axial direction of the first fixing ring (211) and the second fixing ring (212), the reverse claw portion (22) is connected to the second fixing ring (212), the reverse claw portion (22) abuts against the inner sleeve (214), and the end of the inner sleeve (214) away from the reverse claw portion (22) abuts against the inner wall of the mounting hole (111).

3. The high-voltage, high-current single-claw torsion spring terminal according to claim 2, characterized in that: The first fixing ring (211) is arranged at an end of the mounting hole (111) away from the opening, the second fixing ring (212) is arranged at an end of the mounting hole (111) close to the opening, and the anti-claw portion (22) is arranged at an end of the mounting hole (111) close to the opening.

4. The high-voltage, high-current single-claw torsion spring terminal according to claim 3, characterized in that: An outer sleeve (3) is sleeved on the outside of the reverse claw portion (22), and the outer sleeve (3) is used to fix the reverse claw portion (22).

5. The high-voltage, high-current single-claw torsion spring terminal according to claim 4, characterized in that: The width of the first fixing ring (211) is greater than the width of the second fixing ring (212).

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