Novel waterproof vehicle charging socket

By employing a multi-layered sealing structure and drainage hole design in the electric vehicle charging socket, the problems of poor sealing and complex materials are solved, achieving higher waterproof performance and reduced costs.

CN223993423UActive Publication Date: 2026-03-13SICHUAN YONGGUI SCI & TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-18
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Existing electric vehicle charging sockets have poor sealing and use complex materials, which leads to the problem of the tail cap easily falling off.

Method used

The system employs interference fits between the housing and flange, terminals and the inner hole of the housing, tail cap and housing, and the sealing body of the temperature sensor wiring harness and housing, combined with the use of sealing rings, to form a multi-layer sealing structure. Drainage holes are also provided on the housing to enhance waterproof performance.

Benefits of technology

The improved sealing performance of the socket reduced component costs, decreased the risk of the end cap falling off, and ensured waterproof performance in rainy environments.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223993423U_ABST
Patent Text Reader

Abstract

The utility model discloses a novel waterproof vehicle charging socket which comprises a socket flange and a socket unit. Each socket unit comprises a hot melting nut, a shell sealing ring, a shell, a terminal sealing ring, a power terminal, heat conduction silica gel, a temperature sensor, a fixing piece, a tail cover wire sealing body and a tail cover. The hot melting nut is arranged on the socket flange in a hot melting mode, the shell sealing ring is arranged on the shell, and the shell is arranged in the socket flange. The sealing ring is matched with the shell and the flange, the terminal sealing ring is matched with the terminal and the socket shell, the tail cover sealing ring is matched with the tail cover and the shell, the temperature sensor wire sealing body is matched with the shell, the wire sealing body is matched with the shell and the tail cover, and the shell is provided with a drainage knot for protection, so that the sealing performance is greatly guaranteed, and the sealing reliability is improved. Furthermore, the shielding ring is externally arranged, the material consumption of the tail cover is reduced, the part cost is reduced, the tail cover is short, and the problem that the tail cover falls off is not prone to being caused.
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Description

Technical Field

[0001] This utility model relates to the field of electric vehicle charging sockets, and more specifically, to a novel waterproof vehicle charging socket. Background Technology

[0002] Electric vehicle charging sockets must be designed for various usage scenarios. In rainy or wet conditions, liquid must be prevented from entering the socket and causing electrical leakage. However, existing European standard charging sockets for electric vehicles do not offer sufficient waterproof sealing to address this issue.

[0003] The sealing of existing sockets mainly relies on three types of mating: the mating of the sealing ring with the housing and flange, the mating of the terminal sealing ring with the terminal and the socket housing, and the mating of the wire sealing body with the housing and the tail cap. This method uses an internal shielding connection, which increases the height of the tail cap, requires more material, and is therefore more expensive. The wiring harness is also longer inside the housing, making the tail cap prone to detachment. Utility Model Content

[0004] This invention overcomes the shortcomings of the prior art and provides a new type of waterproof vehicle charging socket, which is expected to solve the problems of poor sealing and complex materials used in existing sockets.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A novel waterproof vehicle charging socket includes a socket flange and a socket unit;

[0007] The socket unit includes a hot melt nut, a housing sealing ring, a housing, a terminal sealing ring, a power terminal, thermally conductive silicone, a temperature sensor, a fixing component, a tail cap sealing body, and a tail cap;

[0008] The hot-melt nut is hot-melted onto the socket flange, the housing sealing ring is installed on the housing, and the housing is installed in the socket flange;

[0009] The terminal sealing ring, power terminal, thermally conductive silicone, and temperature sensor are mounted on the fixing component.

[0010] The fastener is fixed to the housing by the connector, and the terminal sealing ring is installed between the inner hole of the housing and the power terminal;

[0011] The wiring harness of the temperature sensor passes through the tail cap sealing body and exits the housing. An interference fit is formed between the wiring harness and the tail cap sealing body. The tail cap is installed on the housing.

[0012] Among them, the housing sealing ring forms an interference fit with the housing and flange, the terminal sealing ring forms an interference fit with the housing inner hole and the terminal, and the sealing body forms an interference fit with the mounting hole and the wire harness. All of these can form a good sealing effect and prevent liquid from entering.

[0013] This utility model uses a sealing ring to seal the shell and flange, preventing water from seeping into the shell along the flange surface;

[0014] The terminals and housing are sealed with a sealing ring to prevent water from seeping into the housing from the front end of the housing along the terminals;

[0015] The housing and tail cap are sealed with a sealing ring to prevent water from seeping into the housing through the temperature sensor wiring harness;

[0016] The temperature sensor wiring harness is sealed to the housing using a sealing body to prevent water from seeping into the housing from the tail cap.

[0017] The above waterproofing measures are sufficient to ensure the waterproofing effect of the socket.

[0018] A further technical solution is that the connecting component includes a bushing and a screw;

[0019] The housing is provided with screw holes, and the bushing is installed in the screw holes of the housing;

[0020] The fastener has a screw hole, and the screw passes through the screw hole of the fastener and is installed in the bushing.

[0021] A further technical solution is that the housing is provided with drainage holes;

[0022] The drain hole is located on the charging terminal mounting hole of the housing.

[0023] The housing has a drainage structure, which effectively prevents water accumulation in the housing and provides further protection for the socket's sealing and waterproofing.

[0024] A further technical solution is that the socket unit includes a DC socket unit and an AC socket unit;

[0025] The DC socket unit and the AC socket unit are installed adjacent to each other on the socket flange;

[0026] In the DC socket unit, the housing sealing ring is a DC housing sealing ring; the housing is a DC housing, the terminal sealing ring is a DC terminal sealing ring, the power terminal is a DC power terminal, the thermally conductive silicone is a DC thermally conductive silicone, the fixing component is a DC fixing component, the tail cover sealing body is a DC tail cover sealing body, and the tail cover is a DC tail cover.

[0027] In the AC socket unit, the housing sealing ring is an AC housing sealing ring; the housing is an AC housing; the terminal sealing ring is an AC terminal sealing ring; the power terminal is an AC power terminal; the thermally conductive silicone is AC thermally conductive silicone; the fixing component is an AC fixing component; the tail cover sealing body is an AC tail cover sealing body; and the tail cover is an AC tail cover.

[0028] In actual production and use, DC charging sockets and AC charging sockets are usually installed next to each other. Therefore, socket units that include both DC and AC socket units are more suitable for vehicle charging.

[0029] A further technical solution is that the DC tail cover includes a first DC tail cover and a second DC tail cover;

[0030] The wire harness passes through the first DC tail cover sealing body and exits the housing. The first DC tail cover is provided with a sealing ring and is installed on the housing.

[0031] The second DC tail cover is installed on the first DC tail cover.

[0032] The first DC tail cover, the sealing body, and the second DC tail cover are sealed together. The sealing body is located between the first DC tail cover and the second DC tail cover, which can effectively prevent water from entering the housing along the wire harness.

[0033] A further technical solution is that the DC waterproof vehicle charging socket also includes a temperature sensor sealing body;

[0034] The temperature sensor wiring harness passes through the temperature sensor sealing body, which is installed in the housing.

[0035] Compared with the prior art, this utility model has at least the following beneficial effects: This utility model overcomes the shortcomings of the prior art and provides a novel waterproof vehicle charging socket. Through the cooperation of the sealing ring with the housing and flange, the terminal sealing ring with the terminal and the socket housing, the tail cover sealing ring with the tail cover and the housing, the temperature sensor sealing wire with the housing, the sealing wire with the housing and the tail cover, and the housing having a drainage knot for protection, the sealing performance is greatly guaranteed and the reliability of the seal is improved. Furthermore, by placing the shielding ring externally, this application reduces the amount of tail cover material used, lowers component costs, and makes the tail cover shorter, thus reducing the likelihood of tail cover detachment. Attached Figure Description

[0036] Figure 1 This is an exploded view of an embodiment of the present utility model;

[0037] Figure 2 This is a schematic diagram of the AC casing drainage structure;

[0038] Figure 3This is a schematic diagram of the DC casing drainage structure;

[0039] Figure 4 Exploded view of the first DC tail cover, sealing body and the second DC tail cover.

[0040] In the diagram, 1-socket flange, 2-DC socket unit, 21-DC housing sealing ring, 22-DC housing, 23-DC terminal sealing ring, 24-DC power terminal, 25-DC thermally conductive silicone, 26-DC fastener, 27-DC tail cap sealing body, 28-first DC tail cap, 29-second DC tail cap, 3-AC socket unit, 31-AC housing sealing ring, 32-AC housing, 33-AC terminal sealing ring, 34-AC power terminal, 35-AC thermally conductive silicone, 36-AC fastener, 37-AC tail cap sealing body, 38-AC tail cap, 4-thermal fusion nut, 5-temperature sensor, 6-fastener, 7-temperature sensor sealing body. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0042] A novel waterproof vehicle charging socket includes a socket unit and a socket flange 1;

[0043] The socket unit includes a hot melt nut 4, a housing sealing ring, a housing, a terminal sealing ring, a power terminal, thermally conductive silicone, a temperature sensor 5, a fixing piece 6, a tail cap sealing body, and a tail cap;

[0044] The hot-melt nut 4 is hot-melted onto the socket flange 1, the housing sealing ring is installed on the housing, and the housing is installed in the socket flange 1. In this embodiment, the housing is provided with a drain hole, which is located on the charging terminal mounting hole of the housing.

[0045] The terminal sealing ring, power terminal, thermally conductive silicone, and temperature sensor 5 are mounted on the fixing member 6;

[0046] The fixing member 6 is fixed in the housing by the connector, and the terminal sealing ring is installed between the inner hole of the housing and the power terminal;

[0047] It should be noted that the connector can be connected by snap-fit, plug connection, snap-fit, etc. In this example, the connector includes a bushing and a screw.

[0048] The housing is provided with screw holes, and the bushing is installed in the screw holes of the housing;

[0049] The fixing member 6 is provided with a screw hole, and the screw passes through the screw hole of the fixing member 6 and is installed in the bushing.

[0050] The wiring harness of the temperature sensor 5 passes through the tail cap sealing body and exits the housing. An interference fit is formed between the wiring harness and the tail cap sealing body. The tail cap is installed on the housing.

[0051] In this embodiment, the tail cap is installed on the housing by screws, and the temperature sensor 5 includes a first temperature sensor 5 and a second temperature sensor 5.

[0052] In this embodiment, the socket unit includes a DC socket unit 2 and an AC socket unit 3. It should be understood that both the DC socket unit 2 and the AC socket unit 3 contain the above-mentioned components, and the above-mentioned structures are used in the installation of these components. In the DC socket unit 2, the housing sealing ring is a DC housing 22 sealing ring 21; the housing is a DC housing 22; the terminal sealing ring is a DC terminal sealing ring 23; the power terminal is a DC power terminal 24; the thermally conductive silicone is a DC thermally conductive silicone 25; the fixing member 6 is a DC fixing member 26; the tail cover sealing body is a DC tail cover sealing body 27; and the tail cover is a DC tail cover.

[0053] In the AC socket unit 3, the housing sealing ring is AC housing 32 sealing ring 31; the housing is AC housing 32, the terminal sealing ring is AC terminal sealing ring 33, the power terminal is AC power terminal 34, the thermally conductive silicone is AC thermally conductive silicone 35, the fixing member 6 is AC fixing member 36, the tail cover sealing body is AC tail cover 38 sealing body 37, and the tail cover is AC tail cover 38.

[0054] The DC socket unit 2 and the AC socket unit 3 are installed adjacent to each other on the socket flange 1.

[0055] Preferably, the DC tail cover includes a first DC tail cover 28 and a second DC tail cover 29;

[0056] The wire harness passes through the first DC tail cover 28 and the wire sealing body 27 and exits the housing. The first DC tail cover 28 is provided with a sealing ring and is installed on the housing.

[0057] The second DC tail cover 29 is mounted on the first DC tail cover 28.

[0058] The DC waterproof vehicle charging socket also includes a temperature sensor 5-sealed wire body;

[0059] The wire harness of temperature sensor 5 passes through the sealing body of temperature sensor 5, and the sealing body of temperature sensor 5 is installed in the housing.

[0060] The installation steps for this product are as follows: heat-melt nut 4 is heat-melted onto socket flange 1, AC housing 32 sealing ring 31 is installed on AC housing 32, DC housing 22 sealing ring 21 is installed on DC housing 22, first install AC housing 32 assembly into socket flange 1, then install DC housing 22 assembly into socket flange 1, and the housing sealing ring forms an interference fit with the housing and flange.

[0061] The DC bushing and AC bushing are installed in the screw holes of the DC housing 22 and AC housing 32; the DC terminal sealing ring 23, DC power terminal 24, DC thermal conductive silicone 25, first temperature sensor 5, and second temperature sensor 5 are pre-installed on the DC fixing component 26, the fixing component 6 assembly is installed into the DC housing 22, and the DC fixing component 26 is fixed to the DC housing 22 with screws;

[0062] The first temperature sensor 5, the second temperature sensor 5, the AC thermally conductive silicone 35, the AC terminal, and the AC sealing ring are pre-installed onto the AC fixing component 36, and the AC fixing component 36 is fixed to the AC housing 32 using screws.

[0063] The pre-installed DC fastener 26 and AC fastener 36 are respectively installed into the DC housing 22 and AC housing 32, and the terminal sealing ring forms an interference fit with the inner hole of the housing and the terminal.

[0064] In the DC socket unit 2, the first temperature sensor 5 and the second temperature sensor 5 pass through the reserved holes on the DC housing 22, and then the wire harness of the temperature sensor 5 is passed through the wire sealing body of the temperature sensor 5. The DC tail cover wire sealing body 27 is installed into the DC housing 22, and the DC tail cover wire sealing body 27 forms an interference fit with the mounting hole and the wire harness.

[0065] A sealing ring is installed on the first DC tail cover 28 and then fitted with the DC housing 22. The sealing ring is interference-fitted with the DC housing 22 and the first DC tail cover 28.

[0066] The DC sealing body is mounted on the wire harness and pushed into the first DC tail cover 28. Then, the second DC tail cover 29 is installed in place with the first DC tail cover 28. The DC tail cover sealing body 27 forms an interference fit with the tail cover and the wire harness.

[0067] In AC socket unit 3, the wire harness passes through the AC sealing body, pushes the sealing body into the AC housing 32, and then installs the AC tail cover 38 into the AC housing 32. The sealing body, housing and wire harness form an interference fit.

[0068] Use screws to mount the DC socket unit 2 and AC socket unit 3 onto the socket flange 1 for secure installation.

[0069] Although the present invention has been described herein with reference to illustrative embodiments, it should be understood that many other modifications and implementations can be devised by those skilled in the art, which will fall within the scope and spirit of the principles disclosed herein. More specifically, various variations and improvements can be made to the components and / or layout of the subject matter combination within the scope of the present application. Besides variations and improvements to the components and / or layout, other uses will be apparent to those skilled in the art.

Claims

1. A new and improved waterproof vehicle charging outlet, characterized in that, Including, socket flange, socket unit; The socket unit comprises a hot melt nut, a shell sealing ring, a shell, a terminal sealing ring, a power terminal, a heat-conducting silica gel, a temperature sensor, a fixing part, a tail cover sealing wire body, and a tail cover. The hot melt nut is hot melted on the socket flange, and the shell sealing ring is arranged on the shell. The terminal sealing ring, the power terminal, the heat-conducting silica gel, and the temperature sensor are arranged on the fixing part. The fixing part is fixed in the shell through a connecting part. The terminal sealing ring is arranged between the inner hole of the shell and the power terminal.

2. A new waterproof vehicle charging socket as claimed in claim 1, wherein, The wire harness of the temperature sensor passes through the tail cover sealing wire body and out of the shell. The connecting part comprises a shaft sleeve and a screw. The shell is provided with a screw hole position, and the shaft sleeve is arranged in the screw hole position of the shell.

3. A new type of waterproof vehicle charging socket according to claim 1, characterized in that, The fixing part is provided with a screw hole, and the screw is arranged in the shaft sleeve through the screw hole of the fixing part. The shell is provided with a drainage hole.

4. A new water-proof vehicle charging socket as claimed in claim 1, wherein, The drainage hole is arranged on the charging terminal mounting hole of the shell. The socket unit comprises a direct current socket unit and an alternating current socket unit. The direct current socket unit and the alternating current socket unit are arranged adjacent to each other on the socket flange. In the direct current socket unit, the shell sealing ring is a direct current shell sealing ring, the shell is a direct current shell, the terminal sealing ring is a direct current terminal sealing ring, the power terminal is a direct current power terminal, the heat-conducting silica gel is a direct current heat-conducting silica gel, the fixing part is a direct current fixing part, the tail cover sealing wire body is a direct current tail cover sealing wire body, and the tail cover is a direct current tail cover.

5. A new waterproof vehicle charging socket as claimed in claim 4, wherein, In the alternating current socket unit, the shell sealing ring is an alternating current shell sealing ring, the shell is an alternating current shell, the terminal sealing ring is an alternating current terminal sealing ring, the power terminal is an alternating current power terminal, the heat-conducting silica gel is an alternating current heat-conducting silica gel, the fixing part is an alternating current fixing part, the tail cover sealing wire body is an alternating current tail cover sealing wire body, and the tail cover is an alternating current tail cover. The direct current tail cover comprises a first direct current tail cover and a second direct current tail cover. The wire harness passes through the first direct current tail cover sealing wire body and out of the shell, the first direct current tail cover is provided with a sealing ring, and the first direct current tail cover is arranged on the shell.

6. A new water resistant vehicle charging outlet as claimed in claim 1, wherein, The second direct current tail cover is arranged on the first direct current tail cover. Further comprising a temperature sensor sealing wire body. The temperature sensor wire harness passes through the temperature sensor sealing wire body, and the temperature sensor sealing wire body is arranged in the shell.