Large-current wiring terminal for new energy automobile

Abstract

The utility model relates to a large-current wiring terminal for a new energy automobile, and the terminal comprises an insulating housing which is internally provided with a wiring groove, the bottom of the side wall of the insulating housing is provided with a wire plugging port communicated with the wiring groove, and a heat dissipation groove is horizontally disposed above the wire plugging port in a penetrating manner; and the terminal seat is arranged at the bottom of the wiring groove, a wire hole for inserting a wire is formed in the position, corresponding to the wire plugging port, of the side wall of the terminal seat, a notch for opening the wire hole is formed in the top of the terminal seat, and connecting grooves are formed in the left side and the right side of the terminal seat. The utility model relates to the technical field of wiring terminals. According to the large-current wiring terminal for the new energy automobile, the terminal base and the wire pressing block are arranged and can be used for fixing a wire, then heat can be rapidly conducted out through cooperation of a heat dissipation groove formed in the insulating shell and a heat dissipation plate at the top of the wire pressing block, the heat dissipation effect of the wiring terminal is improved, and therefore the deformation amount of heating of the wiring terminal is reduced, and the service life of the wiring terminal is prolonged. The fixing strength of the wire is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of terminal blocks, and in particular to a high-current terminal block for new energy vehicles. Background Technology

[0002] Terminal blocks are accessories used to achieve electrical connections and are widely used in industrial and electronic fields. Their main function is to safely connect two or more wires together, usually without soldering, facilitating maintenance and replacement.

[0003] In existing technologies, the high-voltage systems of new energy vehicles typically operate at 300V or higher, and the terminals must be able to withstand voltages up to 600V and corresponding high currents. Since high current transmission inevitably generates a large amount of heat, the thermal expansion of the terminals can affect the stability of the wires, thus impacting the usability of the wiring connections. Utility Model Content

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0005] A high-current terminal block for new energy vehicles includes:

[0006] An insulating shell has a wiring groove inside, and a plug-in port communicating with the wiring groove is opened at the bottom of the side wall of the insulating shell. A heat dissipation groove is opened horizontally above the plug-in port.

[0007] The terminal block is located at the bottom of the wiring slot. The side wall of the terminal block has a wire hole for inserting wires at the position of the wire insertion port. The top of the terminal block has a notch for opening the wire hole. The left and right sides of the terminal block have connecting slots.

[0008] A wire clamping block is installed in the notch to clamp the wire. A heat dissipation plate is fixedly connected to the top of the wire clamping block, and a sliding plate is fixedly connected to the bottom of the wire clamping block at the position corresponding to the connection groove. The sliding plate passes through the terminal block and extends into the connection groove. An anti-detachment block is fixedly connected to the bottom of the sliding plate, and an elastic element is fixedly connected between the top of the anti-detachment block and the sliding plate.

[0009] Furthermore, the elastic component includes a positioning post and a spring. There are two positioning posts, one of which is fixedly connected to the top of the anti-detachment block, and the other is fixedly connected to the top wall of the connecting groove. A spring connects the two positioning posts.

[0010] Furthermore, an adjusting screw is threaded onto the top of the insulating housing, and the bottom of the adjusting screw extends into the wiring groove and contacts the wire clamping block.

[0011] Furthermore, a boss is fixedly connected to the top of the pressure block, and a receiving groove for accommodating the adjusting screw is provided on the top of the boss. A limit ring is connected to the opening of the receiving groove, and an anti-disengagement ring that abuts against the limit ring is connected to the part of the adjusting screw that extends into the receiving groove.

[0012] Furthermore, the thickness of the anti-detachment ring is less than the depth of the receiving groove, so that there is a certain amount of movement between the adjusting screw and the pressure block.

[0013] Furthermore, the bottom of the insulating housing is provided with a through groove that communicates with the wiring groove, so that the bottom of the terminal block is exposed to the air.

[0014] Furthermore, the insulating housing is provided with an air passage that communicates with the heat dissipation groove on the side of the terminal block opposite to the wire hole.

[0015] In summary, this utility model has at least one of the following beneficial technical effects:

[0016] This high-current terminal block for new energy vehicles can be used to fix wires by setting terminal blocks and pressure blocks. Then, in conjunction with the heat dissipation grooves on the insulating shell and the heat dissipation plate on the top of the pressure block, heat can be quickly dissipated, improving the heat dissipation effect of the terminal block, thereby reducing the deformation of the terminal block due to heat generation and improving the fixing strength of the wires. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a structural schematic diagram of a high-current terminal block for new energy vehicles according to the present invention.

[0019] Figure 2 This is a schematic diagram showing the installation position of the terminal block in a high-current wiring terminal for new energy vehicles according to this utility model.

[0020] Figure 3 This is a schematic diagram showing the installation position of the voltage block in a high-current terminal block for new energy vehicles according to this utility model.

[0021] Figure 4 This is a schematic diagram of the internal structure of the boss in a high-current terminal block for new energy vehicles according to this utility model.

[0022] Figure 5This is a schematic diagram showing the connection state between the voltage block and the terminal block in a high-current terminal block for new energy vehicles according to this utility model.

[0023] In the diagram, 1. Insulating shell; 2. Terminal block; 3. Wire clamp; 4. Wiring groove; 5. Wire socket; 6. Heat dissipation groove; 7. Wire hole; 8. Notch; 9. Connecting groove; 10. Heat dissipation plate; 11. Slide plate; 12. Anti-detachment block; 13. Elastic component; 131. Positioning post; 132. Spring; 14. Adjusting screw; 15. Boss; 16. Receiving groove; 17. Limiting ring; 18. Anti-detachment ring; 19. Through groove; 20. Air passage. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings.

[0025] Example:

[0026] Reference Figures 1-5 This utility model discloses a high-current terminal block for new energy vehicles, comprising:

[0027] An insulating shell 1 has a wiring groove 4 inside, and a plug-in port 5 communicating with the wiring groove 4 is opened at the bottom of the side wall of the insulating shell 1. A heat dissipation groove 6 is opened horizontally above the plug-in port 5.

[0028] Terminal block 2 is located at the bottom of wiring groove 4. The side wall of terminal block 2 is provided with wire hole 7 for inserting wire at the position of wire insertion port 5. The top of terminal block 2 is provided with notch 8 for opening wire hole 7. Connecting groove 9 is provided on both the left and right sides of terminal block 2.

[0029] A wire clamping block 3 is installed in the notch 8 to clamp the wire. A heat sink 10 is fixedly connected to the top of the wire clamping block 3. A sliding plate 11 is fixedly connected to the bottom of the wire clamping block 3 at the position corresponding to the connecting groove 9. The sliding plate 11 passes through the terminal block 2 and extends into the connecting groove 9. An anti-detachment block 12 is fixedly connected to the bottom of the sliding plate 11. An elastic member 13 is fixedly connected between the top of the anti-detachment block 12 and the sliding plate 11.

[0030] In this embodiment, observation Figure 1 and Figure 2 It can be seen that by setting an insulating shell 1, a wiring groove 4 is opened inside the insulating shell 1, and a terminal block 2 is fixedly connected to the bottom of the wiring groove 4. A wire insertion port 5 communicating with the wiring groove 4 is opened at the bottom of the side wall of the insulating shell 1. At the same time, a wire hole 7 for inserting wires is opened on the side wall of the terminal block 2 corresponding to the position of the wire insertion port 5. Wires can be inserted into the terminal block 2 through the wire insertion port 5 and the wire hole 7 for wiring.

[0031] Subsequently Figure 3As can be seen, in order to ensure the stability of the wire, a notch 8 for opening the wire hole 7 is provided on the top of the terminal block 2. Connecting grooves 9 are provided on both the left and right sides of the terminal block 2. A wire pressing block 3 is provided in the notch 8. A sliding plate 11 is fixedly connected to the bottom of the wire pressing block 3 at the position corresponding to the connecting groove 9. The sliding plate 11 passes through the terminal block 2 and extends into the connecting groove 9. An anti-detachment block 12 is fixedly connected to the bottom of the sliding plate 11. A spring member 13 is fixedly connected between the top of the anti-detachment block 12 and the sliding plate 11. At this time, when the wire is inserted into the wire hole 7, the anti-detachment block 12 will move downward in the connecting groove 9 under the push of the spring member 13, thereby pulling the wire pressing block 3 down through the sliding plate 11 to press down the wire and fix the wire.

[0032] However, since the high-voltage systems of new energy vehicles typically operate at 300V or higher, the terminals must be able to withstand voltages up to 600V and corresponding high currents. Because high current transmission inevitably generates a large amount of heat, the thermal expansion of the terminals can affect the stability of the wires, thus impacting the usability of the wiring connections.

[0033] Therefore, in order to mitigate the impact of thermal expansion on the connection stability of the conductor, observation Figure 3 It can be seen that a heat dissipation groove 6 is horizontally opened above the plug port 5, and a heat dissipation plate 10 is fixedly connected to the top of the wire clamping block 3. When the wire heats up, the heat will be transferred to the heat dissipation plate 10 on the wire clamping block 3, and then the heat will be quickly carried away by the air flow in the heat dissipation groove 6, which is used to improve the self-heating efficiency of the terminal block, thereby improving the heat dissipation effect of the terminal block, reducing the impact of thermal expansion, and improving the stability of the wire fixing.

[0034] Meanwhile, in order to further improve the heat dissipation effect, the slide plate 11 passing through the terminal block 2 should contact the terminal block 2. At this time, the heat of the terminal block 2 will also be transferred to the wire clamping block 3 through the slide plate 11, and then dissipated by the heat sink 10, which can further improve the heat dissipation effect.

[0035] In a further preferred embodiment of this utility model, such as Figure 5 As shown, the elastic component 13 includes a positioning post 131 and a spring 132. There are two positioning posts 131. One positioning post 131 is fixedly connected to the top of the anti-detachment block 12, and the other positioning post 131 is fixedly connected to the top wall of the connecting groove 9. The spring 132 is connected between the two positioning posts 131. The spring 132 can be used to push the anti-detachment block 12 to always maintain the downward movement trend. Therefore, even if the wire pressing block 3 is heated and deformed, the wire pressing block 3 will still maintain the downward pressing trend, which can further improve the fixing stability of the wire.

[0036] The spring 132 should be a high-temperature resistant spring, and the positioning post 131 used to connect the spring 132 should be made of insulating material to prevent the spring 132 from short-circuiting and melting.

[0037] In a further preferred embodiment of this utility model, such as Figure 3 As shown, the top of the insulating shell 1 is threaded with an adjusting screw 14. The bottom of the adjusting screw 14 extends into the wiring groove 4 and contacts the wire clamping block 3. The adjusting screw 14 can be used to abut against the wire clamping block 3 to provide stronger downward pressure to the wire clamping block 3, thereby further improving the fixing strength of the wire.

[0038] In a further preferred embodiment of this utility model, such as Figure 4 As shown, a boss 15 is fixedly connected to the top of the wire pressing block 3. The top of the boss 15 is provided with a receiving groove 16 for accommodating the adjusting screw 14. A limit ring 17 is connected to the opening of the receiving groove 16. An anti-disengagement ring 18 is connected to the part of the adjusting screw 14 that extends into the receiving groove 16, which abuts against the limit ring 17. When the adjusting screw 14 is loosened, the anti-disengagement ring 18 abuts against the limit ring 17 to drive the wire pressing block 3 to move upward, so that the wire can be better inserted into the wire hole 7.

[0039] In a further preferred embodiment of this utility model, such as Figure 4 As shown, the thickness of the anti-detachment ring 18 is less than the depth of the receiving groove 16, so that there is a certain amount of movement between the adjusting screw 14 and the pressure block. This can prevent the adjusting screw 14 from abutting against the inner wall of the receiving groove 16 and affecting the rotation of the adjusting screw 14, thus ensuring the stability of the adjusting screw 14 in use.

[0040] In a further preferred embodiment of this utility model, such as Figure 4 As shown, the bottom of the insulating shell 1 is provided with a through groove 19 that communicates with the wiring groove 4, so that the bottom of the terminal block 2 is exposed to the air. The insulating shell 1 is provided with an air passage 20 that communicates with the heat dissipation groove 6 on the side of the terminal block 2 away from the wire hole 7. This can increase the contact area between the terminal block 2 and the air, thereby improving the heat dissipation performance of the terminal block 2, further reducing the deformation of the terminal block 2, and thus further ensuring the stability of the wire fixation.

[0041] The implementation principle of the above embodiment is as follows: loosen the adjusting screw 14 to move the wire clamping block 3 upward, insert the wire through the wire hole 7 into the terminal block 2, and finally tighten the adjusting screw 14 to fix the wire clamping block 3.

[0042] When the terminal block heats up, the heat is quickly dissipated through the heat sink 10, which can reduce the temperature of the terminal block, reduce the deformation of the terminal block 2 and the wire clamping block 3, thereby improving the stability of the wire fixing.

[0043] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A high-current terminal block for new energy vehicles, characterized in that, include: An insulating shell (1) has a wiring groove (4) inside. A plug-in port (5) communicating with the wiring groove (4) is opened at the bottom of the side wall of the insulating shell (1). A heat dissipation groove (6) is opened horizontally above the plug-in port (5). Terminal block (2) is located at the bottom of wiring groove (4). The side wall of terminal block (2) is provided with a wire hole (7) for inserting wires at the position corresponding to the wire insertion port (5). The top of terminal block (2) is provided with a notch (8) for opening the wire hole (7). Connecting grooves (9) are provided on both the left and right sides of terminal block (2). A wire clamping block (3) is set in the notch (8) to clamp the wire. A heat sink plate (10) is fixedly connected to the top of the wire clamping block (3). A sliding plate (11) is fixedly connected to the bottom of the wire clamping block (3) at the position corresponding to the connecting groove (9). The sliding plate (11) passes through the terminal block (2) and extends into the connecting groove (9). An anti-detachment block (12) is fixedly connected to the bottom of the sliding plate (11). A spring element (13) is fixedly connected between the top of the anti-detachment block (12) and the sliding plate (11).

2. The high-current terminal block for new energy vehicles according to claim 1, characterized in that, The elastic element (13) includes a positioning post (131) and a spring (132). There are two positioning posts (131), one of which is fixedly connected to the top of the anti-detachment block (12), and the other is fixedly connected to the top wall of the connecting groove (9). A spring (132) is connected between the two positioning posts (131).

3. A high-current terminal block for new energy vehicles according to claim 2, characterized in that, The top of the insulating shell (1) is threaded with an adjusting screw (14), the bottom of which extends into the wiring groove (4) and contacts the wire clamping block (3).

4. A high-current terminal block for new energy vehicles according to claim 3, characterized in that, The top of the pressure block (3) is fixedly connected to a boss (15), and the top of the boss (15) is provided with a receiving groove (16) for accommodating the adjusting screw (14). A limit ring (17) is connected to the opening of the receiving groove (16), and an anti-detachment ring (18) that abuts against the limit ring (17) is connected to the part of the adjusting screw (14) that extends into the receiving groove (16).

5. A high-current terminal block for new energy vehicles according to claim 4, characterized in that, The thickness of the anti-detachment ring (18) is less than the depth of the receiving groove (16), so that there is a certain amount of movement between the adjusting screw (14) and the pressure block.

6. A high-current terminal block for new energy vehicles according to claim 5, characterized in that, The bottom of the insulating shell (1) is provided with a through groove (19) that communicates with the wiring groove (4), so that the bottom of the terminal block (2) is exposed to the air.

7. A high-current terminal block for new energy vehicles according to claim 6, characterized in that, The insulating shell (1) is located on the side of the terminal block (2) opposite to the wire hole (7) and has an air passage (20) that communicates with the heat dissipation groove (6).

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