Overlarge current charging socket with split groove terminal

By using slotted terminals and aluminum busbar structure in the electric vehicle charging socket, the problems of unstable connection and limited current are solved, resulting in faster and more stable charging.

CN224177609UActive Publication Date: 2026-04-28SICHUAN RECODEAL INTERCONNECT SYST CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN RECODEAL INTERCONNECT SYST CO LTD
Filing Date
2025-04-28
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

The terminal connections of existing electric vehicle charging sockets are unstable and easily loosened or separated due to vibration, and they cannot charge with high current, resulting in limited charging speed.

Method used

It adopts a slotted terminal and aluminum busbar structure. The slotted terminal has a plug groove on the inner wall, and the aluminum busbar is used for power transmission. The combination of copper-aluminum transition welding and arc-shaped spring sheet improves connection stability and current transmission capacity.

Benefits of technology

It improves the connection strength and shock resistance of the charging plug and socket, enables high-current charging, and enhances charging speed and stability.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224177609U_ABST
    Figure CN224177609U_ABST
Patent Text Reader

Abstract

The utility model discloses an overlarge current charging socket with a split slot terminal, which relates to the charging socket field, and comprises a panel and a direct current module and an alternating current module which are installed on the panel, the alternating current module comprises an alternating current installation seat and a split slot terminal arranged in the alternating current installation seat, the split slot terminal comprises a copper pipe, the copper pipe is arranged in a hollow mode, and the split slot terminal is arranged in the copper pipe. The inner wall of one end of the copper pipe is provided with a plurality of plugging grooves, so that the charging connection is more stable, the anti-seismic performance is improved, the direct current module comprises a direct current charging socket mounting plate and an aluminum row male plug, a mounting space is formed between the direct current charging socket mounting plate and the panel, and the aluminum row male plug is arranged in the mounting space. The direct current charging socket mounting plate is provided with an aluminum bar assembly, the aluminum bar assembly comprises an aluminum bar mounting shell and aluminum bars, the aluminum bar mounting shell is fixed on the direct current charging socket mounting plate, one end of the aluminum bar mounting shell is provided with a plurality of aluminum bars, the aluminum bars are transversely mounted, and the aluminum bars are connected with aluminum bar male plugs, so that larger current can pass through, and the charging speed is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of charging sockets, specifically a high-current charging socket with slotted terminals. Background Technology

[0002] Electric vehicles are gaining increasing attention from automakers due to their wide range of energy sources, quiet operation, and zero emissions, leading to the widespread launch of electric vehicles for home use. Currently, electric vehicle charging sockets commonly use AC / DC charging sockets, which include both AC and DC charging ports. However, the terminals of current AC / DC charging sockets are plug-in type, connecting via male and female terminals. This connection is not stable enough and is prone to loosening or separation of the cable and socket connector due to vibration or other factors. Furthermore, current AC / DC charging sockets transmit power through cables, which cannot handle high currents, thus limiting charging speed. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide an overcurrent charging socket with slotted terminals to solve the deficiencies of the prior art.

[0004] The purpose of this utility model is achieved through the following technical solution: a high-current charging socket with slotted terminals, comprising a panel and a DC module and an AC module mounted on the panel. The AC module includes an AC mounting base and slotted terminals disposed within the AC mounting base. The slotted terminals include copper tubes, which are hollow. Several insertion slots are formed on the inner wall of one end of the copper tube. The DC module includes a DC charging socket mounting plate and an aluminum busbar male plug. An installation space is formed between the DC charging socket mounting plate and the panel. The aluminum busbar male plug is disposed within the installation space. An aluminum busbar assembly is disposed on the DC charging socket mounting plate. The aluminum busbar assembly includes an aluminum busbar mounting housing and aluminum busbars. The aluminum busbar mounting housing is fixed to the DC charging socket mounting plate. Multiple aluminum busbars are disposed at one end of the aluminum busbar mounting housing. The aluminum busbars are installed horizontally and connected to the aluminum busbar male plug.

[0005] Furthermore, the top of the aluminum busbar male plug extends into the aluminum busbar mounting housing and has a threaded hole. The aluminum busbar has a through hole. The end of the aluminum busbar with the through hole is slidably inserted into the aluminum busbar mounting housing. The tail of the screw passes through the through hole and is threaded into the threaded hole.

[0006] Furthermore, a boss is formed on the top of the aluminum strip mounting housing, and an operating hole is provided on the boss. The operating hole is coaxially arranged with the threaded hole. A blind plug is provided on the top of the operating hole. A cover plate is mounted on the boss, and the cover plate presses the blind plug onto the boss. An elastic buckle is fixed on the side wall of the boss, and an installation groove is provided on the side wall of the cover plate. The elastic buckle is adapted to the installation groove.

[0007] Furthermore, a grounding plug is provided inside the DC charging socket mounting plate. One end of the grounding plug extends out of the DC charging socket mounting plate and is connected to a cable. The cable is led out from the space between the DC charging socket mounting plate and the aluminum busbar mounting housing.

[0008] Furthermore, the AC mounting base is provided with a signal terminal, and each end of the signal terminal is provided with a plug hole. Several arc-shaped spring pieces are fixed in the plug hole. The arc-shaped spring pieces are evenly distributed around the circumference of the signal terminal, and the middle part of the arc-shaped spring pieces protrudes near the center of the plug hole.

[0009] Furthermore, an AC circuit board is provided inside the AC mounting base, the slotted terminal is soldered onto the AC circuit board, the soldering position of the slotted terminal has a copper-aluminum transition, and the plug hole at one end of the signal terminal mates with the pin on the AC circuit board.

[0010] Furthermore, the AC mounting bracket is connected to the panel by screws, and a waterproof silicone ring is fitted on the AC mounting bracket, which is in close contact with the inner wall of the panel.

[0011] Furthermore, a drain outlet is provided on the side wall of the panel, the drain outlet is connected to the inner cavity of the panel, and a drain pipe is connected to the drain outlet, the drain pipe being located below the waterproof silicone ring.

[0012] Furthermore, an AC back cover is installed at the end of the AC mounting base away from the panel, a cable is connected to the slotted terminal, and a wiring hole is provided on the AC back cover for the cable to pass through.

[0013] Furthermore, the inner top wall of the AC back cover has an installation groove at the position of the corresponding cable. The installation groove is coaxially arranged with the wiring hole. A T-shaped sealing ring is installed in the installation groove and is interference-fitted onto the cable.

[0014] The beneficial effects of this utility model are:

[0015] 1. The traditional terminals are replaced with slotted terminals. The inner wall of the slotted terminal has a plug groove. After the charging plug and the charging socket are plugged in, the protrusion of the charging socket fits into the plug groove, which improves the connection strength between the charging plug and the charging socket, makes the charging connection more stable, and improves the shock resistance.

[0016] 2. Charging new energy vehicles via aluminum busbars allows for a larger current flow, thus increasing the charging speed. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an overcurrent charging socket with slotted terminals according to the present invention.

[0018] Figure 2 This is a partial structural diagram of an overcurrent charging socket with slotted terminals according to the present invention.

[0019] Figure 3 This is a schematic diagram of the signal terminal structure in an overcurrent charging socket with slotted terminals according to the present invention.

[0020] Figure 4 This is a top view of an overcurrent charging socket with slotted terminals according to the present invention.

[0021] Figure 5 for Figure 4 Sectional view along line AA;

[0022] Figure 6 This is a schematic diagram of the AC back cover of an overcurrent charging socket with slotted terminals according to the present invention.

[0023] In the diagram, 1-panel, 2-AC mounting base, 3-copper pipe, 4-plug slot, 5-DC charging socket mounting plate, 6-aluminum male plug, 7-aluminum mounting housing, 8-aluminum busbar, 9-screw, 10-operating hole, 11-blind plug plate, 12-cover plate, 13-elastic clip, 14-mounting slot, 15-ground plug, 16-cable, 17-signal terminal, 18-plug hole, 19-arc spring, 20-AC circuit board, 21-waterproof silicone ring, 22-drain pipe, 23-AC rear cover, 24-wiring hole, 25-mounting slot, 26-T-type sealing ring. Detailed Implementation

[0024] The technical solution of this utility model is described in further detail below with reference to the accompanying drawings, but the scope of protection of this utility model is not limited to the following description.

[0025] Example 1

[0026] like Figures 1 to 6As shown, a high-current charging socket with slotted terminals includes a panel 1 and a DC module and an AC module mounted on the panel 1. The AC module includes an AC mounting base 2 and slotted terminals disposed within the AC mounting base 2. The slotted terminals include a copper tube 3, which is hollow. Several insertion slots 4 are formed on the inner wall of one end of the copper tube 3. A protrusion is provided in the charging hole of the charging plug. After the slotted terminal 3 is inserted into the charging plug, the protrusion of the charging plug fits into the insertion slot 4. The protrusion on the charging plug is also made of copper. Utilizing the elasticity of the copper tube 3 and the elasticity of the protrusion, the protrusion is press-fitted into the insertion slot 4, improving the connection strength between the charging plug and the slotted terminal, making the connection between the cable and the socket more stable, and improving shock resistance. The DC module includes a DC charging socket mounting base 2. The mounting plate 5 and the panel 1 form an installation space. The aluminum busbar male plug 6 is set in the installation space. The DC charging socket mounting plate 5 is equipped with an aluminum busbar assembly, which includes an aluminum busbar mounting housing 7 and aluminum busbars 8. The aluminum busbar mounting housing 7 is fixed on the DC charging socket mounting plate 5. One end of the aluminum busbar mounting housing 7 is provided with multiple aluminum busbars 8. The aluminum busbars 8 are installed horizontally and are connected to the aluminum busbar male plug 6. The panel 1 is provided with an aluminum busbar female socket. The aluminum busbar female socket is plugged into the aluminum busbar male plug 6 so that current can be transmitted to the aluminum busbars 8 through the aluminum busbar male plug 6. The aluminum busbars 8 are used to charge new energy vehicles, which can carry a larger current and improve the charging speed. The aluminum busbars 8 are installed horizontally to adapt to new energy vehicles with vertical sockets. Similarly, the structure of the aluminum busbar male plug 6 in the DC module is the same as that of the slotted terminal, which increases the stability of the electrical connection of the DC module, while the other structures of the DC module and the AC module remain unchanged. For details, please refer to the patent with patent number "2024201045244".

[0027] Example 2

[0028] Based on Embodiment 1, the AC mounting base 2 is connected to the panel 1 by screws. A waterproof silicone ring 21 is fitted on the AC mounting base 2. The waterproof silicone ring 21 is tightly attached to the inner wall of the panel 1, which improves the sealing performance of the assembly position between the AC mounting base 2 and the panel 1, giving the charging socket better dustproof and waterproof performance. A drain outlet is provided on the side wall of the panel 1. The drain outlet is connected to the inner cavity of the panel 1 and a drain pipe 22 is connected to the drain outlet. The drain pipe 22 is located below the waterproof silicone ring 21. Even if water enters the panel 1, the water will be discharged through the drain pipe 22 under the obstruction of the waterproof silicone ring 21, and will not cause a short circuit to the cable above.

[0029] Example 3

[0030] Based on Example 2, such as Figures 1 to 6As shown, an AC mounting base 2 has an AC back cover 23 installed at the end away from the panel 1. A cable is connected to the slotted terminal. The AC back cover 23 has a wiring hole 24 for the cable to pass through. The inner top wall of the AC back cover 23 has a mounting groove 25 at the position corresponding to the cable. The mounting groove 25 is coaxially arranged with the wiring hole 24. A T-shaped sealing ring 26 is installed in the mounting groove 25. The T-shaped sealing ring 26 is interference-fitted onto the cable, and the end of the T-shaped sealing ring 26 abuts against the inner top wall of the AC back cover 23, improving the sealing performance between the T-shaped sealing ring 26 and the wiring hole 24. At the same time, the inner ring of the T-shaped sealing ring 26 is in close contact with the cable, eliminating the gap between the cable and the T-shaped sealing ring 26, thereby completely sealing the assembly position of the cable and the wiring hole 24, and having a good dustproof and waterproof effect.

[0031] Example 4

[0032] Based on Example 3, such as Figures 1 to 5 As shown, the top of the aluminum busbar male plug 6 extends into the aluminum busbar mounting housing 7 and has a threaded hole. The aluminum busbar 8 has a through hole. The end of the aluminum busbar 8 with the through hole is slidably inserted into the aluminum busbar mounting housing 7. The tail of the screw 9 passes through the through hole and is threaded into the threaded hole. Due to the horizontal installation of the aluminum busbar assembly, the aluminum busbar 8 and the aluminum busbar male plug 6 are arranged vertically. In order to realize the electrical connection between the aluminum busbar male plug 6 and the aluminum busbar 8, a threaded hole is opened on the aluminum busbar male plug 6, and the aluminum busbar 8 and the aluminum busbar male plug 6 are connected together by the screw 9 to improve the stability of the connection.

[0033] Example 5

[0034] Based on Example 4, such as Figures 1 to 5 As shown, a boss is formed on the top of the aluminum busbar mounting housing 7, and an operating hole 10 is provided on the boss. The operating hole 10 is coaxially arranged with the threaded hole. A blind plug plate 11 is provided on the top of the operating hole 10. A cover plate 12 is mounted on the boss, and the cover plate 12 presses the blind plug plate 11 tightly on the boss. An elastic buckle 13 is fixed on the side wall of the boss, and an installation groove 14 is provided on the side wall of the cover plate 12. The elastic buckle 13 is adapted to the installation groove 14. By providing the operating hole 10, it is convenient to connect the aluminum busbar 8 and the aluminum busbar male plug 6 through the operating hole 10. For connection or disassembly, press the elastic buckle 13 to deform it, causing the elastic buckle 13 to disengage from the mounting groove 14 of the cover plate 12, and then remove the cover plate 12. Then remove the blind plug 11 to expose the operating hole 10, and then install or remove the aluminum busbar 8. After the aluminum busbar 8 is connected to the aluminum busbar male plug 6, cover the boss with the blind plug 11 to seal the operating hole 10. Then install the cover plate 12 to press the blind plug 11 tightly onto the boss, improving the sealing effect of the operating hole 10 and providing better dustproof and waterproof effects.

[0035] Example 6

[0036] Based on Embodiment 5, a grounding plug 15 is provided inside the DC charging socket mounting plate 5. One end of the grounding plug 15 extends out of the DC charging socket mounting plate 5 and is connected to a cable 16. The cable 16 is led out from the space between the DC charging socket mounting plate 5 and the aluminum busbar mounting housing 7. To facilitate the wiring of the cable 16, a space is formed between the aluminum busbar mounting housing 7 and the DC charging socket mounting plate 5, and the cable 16 is arranged through this space.

[0037] Example 7

[0038] Based on Example 6, such as Figures 1 to 5 As shown, the AC mounting base 2 is provided with a signal terminal 17. Both ends of the signal terminal 17 are provided with plug holes 18. Several arc-shaped spring pieces 19 are fixed in the plug holes 18. The arc-shaped spring pieces 19 are evenly distributed around the circumference of the signal terminal 17. The middle part of the arc-shaped spring pieces 19 protrudes near the center of the plug hole 18. The signal female terminal in the charging plug is inserted into the plug hole 18. The reaction force of the arc-shaped spring pieces 19 presses the signal female terminal into the signal terminal 17, which improves the connection strength between the plug and the socket and has good shock resistance.

[0039] Furthermore, an AC circuit board 20 is provided inside the AC mounting base 2, and the slotted terminal is soldered onto the AC circuit board 20. The soldering position of the slotted terminal has a copper-aluminum transition, which improves the soldering effect. The insertion hole 18 at one end of the signal terminal 17 cooperates with the pin on the AC circuit board 20. The slotted terminal is directly connected to the cable via ultrasonic waves. The signal terminal 17 is inserted into the AC circuit board 20, and the deformation of the arc-shaped spring 19 presses against the pin on the AC circuit board 20, so that both the slotted terminal and the signal terminal 17 have the advantages of high connection strength and high production efficiency.

Claims

1. A high-current charging socket with slotted terminals, comprising a panel (1) and a DC module and an AC module mounted on the panel (1), characterized in that, The AC module includes an AC mounting base (2) and a slotted terminal set in the AC mounting base (2). The slotted terminal includes a copper tube (3), which is hollow. A plurality of insertion slots (4) are opened on the inner wall of one end of the copper tube (3). The DC module includes a DC charging socket mounting plate (5) and an aluminum busbar male plug (6). An installation space is formed between the DC charging socket mounting plate (5) and the panel (1). The aluminum busbar male plug (6) is set in the installation space. An aluminum busbar assembly is provided on the DC charging socket mounting plate (5). The aluminum busbar assembly includes an aluminum busbar mounting housing (7) and an aluminum busbar (8). The aluminum busbar mounting housing (7) is fixed on the DC charging socket mounting plate (5). A plurality of aluminum busbars (8) are provided at one end of the aluminum busbar mounting housing (7). The aluminum busbars (8) are installed horizontally and are connected to the aluminum busbar male plug (6).

2. The high-current charging socket with slotted terminals according to claim 1, characterized in that, The top of the aluminum busbar male plug (6) extends into the aluminum busbar mounting housing (7) and has a threaded hole. The aluminum busbar (8) has a through hole. The end of the aluminum busbar (8) with the through hole is slidably inserted into the aluminum busbar mounting housing (7). The tail of the screw (9) passes through the through hole and is threaded into the threaded hole.

3. A high-current charging socket with slotted terminals according to claim 2, characterized in that, The top of the aluminum strip mounting housing (7) is formed with a boss, and an operation hole (10) is provided on the boss. The operation hole (10) is coaxially arranged with the threaded hole. A blind plug plate (11) is provided on the top of the operation hole (10). A cover plate (12) is mounted on the boss. The cover plate (12) presses the blind plug plate (11) on the boss. An elastic buckle (13) is fixed on the side wall of the boss. An installation groove (14) is provided on the side wall of the cover plate (12). The elastic buckle (13) is adapted to the installation groove (14).

4. A high-current charging socket with slotted terminals according to claim 1, characterized in that, A grounding plug (15) is provided inside the DC charging socket mounting plate (5). One end of the grounding plug (15) extends out of the DC charging socket mounting plate (5) and is connected to a cable (16). The cable (16) is led out from the space between the DC charging socket mounting plate (5) and the aluminum busbar mounting housing (7).

5. A high-current charging socket with slotted terminals according to claim 1, characterized in that, The AC mounting base (2) is provided with a signal terminal (17). Both ends of the signal terminal (17) are provided with plug holes (18). Several arc-shaped spring pieces (19) are fixed in the plug holes (18). The arc-shaped spring pieces (19) are evenly distributed around the circumference of the signal terminal (17). The middle part of the arc-shaped spring pieces (19) protrudes near the center of the plug hole (18).

6. A high-current charging socket with slotted terminals according to claim 5, characterized in that, An AC circuit board (20) is provided inside the AC mounting base (2). The slotted terminal is soldered onto the AC circuit board (20). The soldering position of the slotted terminal is copper-aluminum transition. The plug hole (18) at one end of the signal terminal (17) is engaged with the pin on the AC circuit board (20).

7. A high-current charging socket with slotted terminals according to claim 1, characterized in that, The AC mounting base (2) is connected to the panel (1) by screws. A waterproof silicone ring (21) is fitted on the AC mounting base (2) and the waterproof silicone ring (21) is in close contact with the inner wall of the panel (1).

8. A high-current charging socket with slotted terminals according to claim 7, characterized in that, The panel (1) has a drain outlet on its side wall, which is connected to the inner cavity of the panel (1). The drain outlet is connected to a drain pipe (22), which is located below the waterproof silicone ring (21).

9. A high-current charging socket with slotted terminals according to claim 1, characterized in that, An AC mounting base (2) is equipped with an AC back cover (23) at the end away from the panel (1). The slotted terminal is connected to a cable, and the AC back cover (23) has a wiring hole (24) for the cable to pass through.

10. A high-current charging socket with slotted terminals according to claim 9, characterized in that, The inner top wall of the AC back cover (23) has an installation groove (25) at the position of the corresponding cable. The installation groove (25) is coaxially arranged with the wiring hole (24). A T-shaped sealing ring (26) is installed in the installation groove (25). The T-shaped sealing ring (26) is interference-fitted onto the cable.