Alternating current and direct current charging socket with split groove terminal

By employing a combination of slotted terminal design, arc-shaped spring, and T-shaped sealing ring in the AC/DC charging socket, the problem of unstable terminal connection is solved, resulting in a more stable charging connection and improved shock resistance.

CN224177669UActive Publication Date: 2026-04-28SICHUAN RECODEAL INTERCONNECT SYST CO LTD
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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 AC/DC charging sockets are not stable enough, and the cables and socket connectors are prone to loosening or separation due to vibration and other reasons.

Method used

The design features a slotted terminal with a grooved inner wall on the copper tube. The charging plug protrudes and fits into the groove, and the combination of an arc-shaped spring and a T-shaped sealing ring improves the connection strength and sealing performance.

Benefits of technology

It enhances the connection stability between the charging plug and the socket, improves shock resistance, and has good dustproof and waterproof effects.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an AC / DC charging socket with a split slot terminal, which relates to the technical field of sockets and comprises a panel, a DC module and an AC module, the DC module and the AC module are mounted on the panel, the AC module comprises an AC mounting seat and a split slot terminal arranged in the AC mounting seat, and the split slot terminal comprises a copper pipe. The copper pipe is arranged in a hollow mode, a plurality of inserting grooves are formed in the inner wall of one end of the copper pipe, the inserting grooves are evenly distributed in the circumferential direction of the copper pipe, a female terminal is arranged in the panel, protrusions matched with the inserting grooves are fixed to the outer wall of the female terminal, a traditional terminal is replaced by a split-groove terminal, the inserting grooves are formed in the inner wall of the split-groove terminal, and the outer wall of the split-groove terminal is fixedly provided with protrusions matched with the inserting grooves. After the split groove terminal and the female terminal are plugged, the projection of the female terminal is matched in the plugging groove, thereby improving the connection strength of the female terminal and the split groove terminal, enabling the connection between the cable and the socket to be more stable, and improving the anti-vibration performance.
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Description

Technical Field

[0001] This utility model relates to the field of socket technology, specifically to an AC / DC 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. These sockets currently use plug-in terminals, connecting via the mating of male and female terminals. This connection is not very stable and is prone to loosening or separation of the cable and socket connector due to vibration or other factors. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide an AC / DC 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: an AC / DC charging socket with slotted terminals, including 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 in the AC mounting base. The slotted terminals include a copper tube, which is hollow and has several insertion slots on the inner wall of one end.

[0005] 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.

[0006] Furthermore, an AC circuit board is provided inside the AC mounting base, an aluminum tube is fixed to the end of the copper tube away from the plug slot, the copper-aluminum transition position of the slotted terminal is led out through an ultrasonic welding cable, and the plug hole at one end of the signal terminal is engaged with the pin on the AC circuit board.

[0007] Furthermore, the AC mounting base is provided with a female connector, which is connected to the AC circuit board.

[0008] 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.

[0009] 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.

[0010] Furthermore, the inner top wall of the AC rear end is provided with 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.

[0011] The beneficial effects of this utility model are:

[0012] 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. Attached Figure Description

[0013] Figure 1 This is a partial structural diagram of an AC / DC charging socket with slotted terminals according to the present invention. Figure 1 ;

[0014] Figure 2 This is a schematic diagram of the structure of the slotted terminal in an AC / DC charging socket with slotted terminals according to the present invention;

[0015] Figure 3 This is a schematic diagram of the signal terminal structure in an AC / DC charging socket with slotted terminals according to the present invention;

[0016] Figure 4 This is a schematic diagram of the structure of an AC / DC charging socket with slotted terminals according to the present invention;

[0017] Figure 5 This is a schematic diagram of the AC back cover of an AC / DC charging socket with slotted terminals according to the present invention.

[0018] Figure 6 This is a partial structural diagram of an AC / DC charging socket with slotted terminals according to the present invention. Figure 2 ;

[0019] In the diagram, 1-panel, 2-AC mounting base, 3-slotted terminal, 4-copper pipe, 5-plug slot, 6-signal terminal, 7-plug hole, 8-arc spring, 9-AC circuit board, 10-plug female connector, 11-AC circuit board, 12-AC back cover, 13-cable, 14-wiring hole, 15-mounting slot, 16-T-type sealing ring. Detailed Implementation

[0020] Example 1

[0021] like Figures 1 to 6As shown, an AC / DC 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 3 disposed within the AC mounting base 2. The slotted terminals 3 include a copper tube 4, which is hollow. A plurality of insertion slots 5 are formed on the inner wall of one end of the copper tube 4. The plurality of insertion slots 5 are evenly distributed along the circumference of the copper tube 4. The traditional terminals are replaced with slotted terminals 3. The inner wall of the slotted terminals 3 has insertion slots 5. A protrusion is provided in the charging hole of the charging plug. The slotted terminals 3 are inserted into the charging plug. Subsequently, the protrusion of the charging plug is fitted into the socket 5. The protrusion on the charging plug is also made of copper. By utilizing the elasticity of the copper tube 4 and the elasticity of the protrusion, the protrusion is interference-fitted into the socket 5, which improves the connection strength between the charging plug and the slotted terminal 3, making the connection between the cable and the socket more stable and improving the shock resistance. Similarly, the terminals in the DC module are also replaced with slotted terminals 3 to increase 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".

[0022] Example 2

[0023] Based on Example 1, such as Figures 3 to 6 As shown, an AC mounting base 2 is fitted with an AC rear cover 12 at the end furthest from the panel 1. A slotted terminal 3 is connected to a cable 13. The AC rear cover 12 has a wiring hole 14 for the cable 13 to pass through. The inner top wall of the AC rear end 12 has a mounting groove 15 at the position corresponding to the cable 13. The mounting groove 15 is coaxially arranged with the wiring hole 14. A T-shaped sealing ring 16 is installed in the mounting groove 15. The T-shaped sealing ring 16 is interference-fitted onto the cable 13, and the end of the T-shaped sealing ring 16 abuts against the inner top wall of the AC rear cover 12, improving the sealing performance between the T-shaped sealing ring 16 and the wiring hole 14. At the same time, the inner ring of the T-shaped sealing ring 16 is in close contact with the cable 13, eliminating the gap between the cable 13 and the T-shaped sealing ring 16, thereby completely sealing the assembly position of the cable 13 and the wiring hole 14, providing good dustproof and waterproof effects.

[0024] Example 3

[0025] Based on Example 2, such as Figures 1 to 3 As shown, the AC mounting base 2 is provided with a signal terminal 6. Both ends of the signal terminal 6 are provided with plug holes 7. Several arc-shaped spring pieces 8 are fixed in the plug holes 7. The arc-shaped spring pieces 8 are evenly distributed around the circumference of the signal terminal 6. The middle part of the arc-shaped spring pieces 8 protrudes near the center of the plug hole 7. The signal female terminal in the charging plug is inserted into the plug hole 7. The reaction force of the arc-shaped spring pieces 8 presses the signal female terminal into the signal terminal 6, which improves the connection strength between the signal cable and the socket and has good shock resistance.

[0026] Example 4

[0027] Based on Example 3, such as Figures 1 to 3 As shown, an AC circuit board 9 is installed inside the AC mounting base 2. An aluminum tube is fixed to the end of the copper tube 4 away from the plug slot 5. The copper-aluminum transition position of the slotted terminal 3 is led out through an ultrasonic welding cable. The plug hole 7 at one end of the signal terminal 6 mates with the pin on the AC circuit board 9. A plug-in female head 10 is provided on the AC mounting base 2. The plug-in female head 10 is connected to the AC circuit board 9. The welding position of the slotted terminal 3 has a copper-aluminum transition, which has a good welding effect. The signal terminal 6 is plugged into the AC circuit board 9. The deformation of the arc-shaped spring 8 presses against the pin on the AC circuit board 9, so that both the slotted terminal 3 and the signal terminal 6 have the advantages of high connection strength and high production efficiency.

[0028] Example 5

[0029] Based on Embodiment 4, the AC mounting base 2 is connected to the panel 1 by screws. A waterproof silicone ring 11 is fitted on the AC mounting base 2. The waterproof silicone ring 11 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, so that the charging socket has better dustproof and waterproof performance.

Claims

1. An AC / DC 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 (3) disposed in the AC mounting base (2). The slotted terminal (3) includes a copper tube (4), which is hollow and has several insertion slots (5) on the inner wall of one end.

2. The AC / DC charging socket with slotted terminals according to claim 1, characterized in that, The AC mounting base (2) is provided with a signal terminal (6). Both ends of the signal terminal (6) are provided with plug holes (7). Several arc-shaped spring pieces (8) are fixed in the plug holes (7). The arc-shaped spring pieces (8) are evenly distributed around the circumference of the signal terminal (6). The middle part of the arc-shaped spring pieces (8) protrudes near the center of the plug hole (7).

3. An AC / DC charging socket with slotted terminals according to claim 2, characterized in that, An AC circuit board (9) is provided inside the AC mounting base (2). An aluminum tube is fixed to one end of the copper tube (4) away from the plug slot (5). The copper-aluminum transition position of the slotted terminal (3) is led out through an ultrasonic welding cable. The plug hole (7) at one end of the signal terminal (6) is engaged with the pin on the AC circuit board (9).

4. An AC / DC charging socket with slotted terminals according to claim 3, characterized in that, The AC mounting base (2) is provided with a plug-in female connector (10), which is connected to the AC circuit board (9).

5. An AC / DC 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 (11) is fitted on the AC mounting base (2) and the waterproof silicone ring (11) is in close contact with the inner wall of the panel (1).

6. An AC / DC charging socket with slotted terminals according to claim 1, characterized in that, An AC mounting base (2) is equipped with an AC back cover (12) at the end away from the panel (1). The slotted terminal (3) is connected to a cable (13). The AC back cover (12) has a wiring hole (14) for the cable (13) to pass through.

7. An AC / DC charging socket with slotted terminals according to claim 6, characterized in that, The inner top wall of the AC back cover (12) has an installation groove (15) at the position corresponding to the cable (13). The installation groove (15) is coaxially arranged with the wiring hole (14). A T-shaped sealing ring (16) is installed in the installation groove (15). The T-shaped sealing ring (16) is interference-fitted onto the cable (13).