Self-locking waterproof connector for electric vehicle

Abstract

The utility model relates to the technical field of connectors, in particular to a self-locking waterproof connector for an electric vehicle, which comprises a male seat assembly, a female seat assembly is arranged at the bottom of the male seat assembly, the female seat assembly comprises a second connecting wire positioned at the bottom of a copper core fastener, and a female seat body is fixedly connected to the top of the second connecting wire. A first fastener base and a second fastener base are arranged at the top of the female seat body, a locking ring is fixedly connected to the top of the female seat body, a limiting groove is formed in the side face of the locking ring, a groove and a sliding groove are formed in the top of the female seat body, a sealing gasket is arranged at the top of the female seat body, and a spring and a limiting rod are arranged at the bottom of the sealing gasket. One end of the spring is elastically connected with the sealing gasket, the other end of the spring is elastically connected with the groove, the damping rod is arranged in the spring, the limiting rod is in sliding connection with the sliding groove, and by arranging the sealing gasket, the groove, the sliding groove, the spring and the limiting rod, sealing of the male base assembly and the female base assembly and locking of the clamping position of the male base assembly and the female base assembly are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a self-locking waterproof connector for electric vehicles. Background Technique

[0002] An electric vehicle, that is, an electric drive vehicle, also known as an electric car. Electric vehicles are divided into AC electric vehicles and DC electric vehicles. Generally speaking, an electric vehicle uses a battery as an energy source, and through components such as a controller and a motor, it converts electrical energy into mechanical energy to move, and controls the vehicle speed by changing the magnitude of the current. To reduce environmental pollution, electric bicycles, as green means of transportation, are gradually replacing gasoline-driven locomotives. The electrical connector for charging an electric bicycle is an important component of electric bicycle technology.

[0003] A self-locking waterproof connector for electric vehicles with the Chinese authorized announcement number of CN 212935043 U realizes the self-locking effect through the mutual cooperation of a plastic overmolded body, a power PIN needle, a waterproof connector, a waterproof rubber ring, a self-locking spring, a quick self-locking cap sleeve, a jack, a connector head, and a threaded groove, avoiding the phenomenon that the cap sleeve on the connector is prone to looseness in the later stage.

[0004] However, there are still some deficiencies in the use of this patent. Most of the existing connectors are installed by threads, and the threads are prone to slipping. It is necessary to regularly check and maintain the connection. Moreover, during installation, the staff needs to rotate it multiple times, which is time-consuming and laborious, reducing work efficiency. In addition, this structure is time-consuming and laborious for both locking and separating, and it cannot be achieved for a long time under frequent operations. The assembly is difficult and the plug is prone to damage and detachment. In addition, only a rubber pad is used for waterproofing, the sealing performance is poor, the waterproof effect is also poor, and the waterproof grade is not ideal, which is not suitable for special waterproof occasions. Content of the Utility Model

[0005] The purpose of the utility model is to provide a self-locking waterproof connector for electric vehicles to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A self-locking waterproof connector for an electric vehicle, comprising a male seat assembly. The male seat assembly includes a first connecting wire, the bottom of the first connecting wire is fixedly connected with a male seat body through a connector head. The bottom of the male seat body is provided with a copper core fastener and a connecting fastener. The outer part of the connector head is rotatably connected with a waterproof shell. The bottom of the waterproof shell is provided with a clamping groove, and a plurality of clamping blocks are arranged inside the clamping groove. The side surface of the clamping block is fixedly connected with the side surface of the clamping groove. A rotating groove is arranged inside the waterproof shell, and the inner wall of the rotating groove is rotatably connected with the male seat body.

[0008] As a preferred solution of the present utility model, a female seat assembly is arranged at the bottom of the male seat assembly. The female seat assembly includes a second connecting wire located at the bottom of the copper core fastener, and the top of the second connecting wire is fixedly connected with a female seat body.

[0009] As a preferred solution of the present utility model, a first fastener base and a second fastener base are arranged at the top of the female seat body. A locking ring is fixedly connected to the top of the female seat body, and a limiting groove is arranged on the side surface of the locking ring.

[0010] As a preferred solution of the present utility model, a groove and a sliding groove are respectively arranged at the top of the female seat body, and a sealing gasket is arranged at the top of the female seat body.

[0011] As a preferred solution of the present utility model, a spring and a limiting rod are arranged at the bottom of the sealing gasket. One end of the spring is elastically connected with the sealing gasket, and the other end of the spring is elastically connected with the groove.

[0012] As a preferred solution of the present utility model, a damping rod is arranged inside the spring, and the limiting rod is slidably connected with the sliding groove.

[0013] As a preferred solution of the present utility model, the outer parts of the clamping groove and the locking ring are in fit, and the materials of the clamping groove and the locking ring are both stainless steel.

[0014] As a preferred solution of the present utility model, the copper core fastener and the first fastener base are in corresponding fit, and the connecting fastener and the second fastener base are in corresponding fit.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] 1. In the present utility model, by providing a copper core fastener, a connection fastener, a clamping block, a clamping groove, a locking ring, a limiting groove, a first fastener base and a second fastener base, the problems that both the structure locking and separation are time-consuming and laborious, the assembly is difficult, and the plug is easily damaged and detached are solved, enabling quick installation and clamping. The copper core fastener, the connection fastener, the first fastener base and the second fastener base correspond respectively to position the connection part. Then, the clamping block and the limiting groove are installed correspondingly, and then the waterproof shell is rotated to engage the male seat assembly and the female seat assembly.

[0017] 2. In the present utility model, by providing a sealing gasket, a groove, a sliding groove, a spring and a limiting rod, the sealing of the male seat assembly and the female seat assembly and the locking of the engaging part between the male seat assembly and the female seat assembly are realized. The bottom of the waterproof shell abuts against the top of the sealing gasket. Then, when the waterproof shell is pressed downwards, after the clamping block is clamped to the bottom of the limiting groove, at this time the spring is compressed, and the waterproof shell is rotated until the clamping block rotates to another notch of the limiting groove. Under the action of the spring, the clamping block abuts against another notch of the limiting groove, thus realizing the locking of the male seat assembly and the female seat assembly. The waterproof shell, the clamping block and the locking ring are rotatably connected to form the first layer of sealing, and then the waterproof shell, the female seat body and the sealing gasket abut against each other for the second layer of sealing, solving the sealing problems such as poor sealing performance, poor waterproof effect and unsatisfactory waterproof grade. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the overall schematic diagram of the present utility model;

[0019] Figure 2 is the bottom view schematic diagram of the male seat assembly of the present utility model;

[0020] Figure 3 is the internal schematic diagram of the male seat assembly of the present utility model;

[0021] Figure 4 is the top view schematic diagram of the female seat assembly of the present utility model;

[0022] Figure 5 is the internal schematic diagram of the female seat assembly of the present utility model.

[0023] In the figure: 1. Male seat assembly; 2. Female seat assembly; 101. First connecting wire; 102. Waterproof shell; 103. Copper core fastener; 104. Connection fastener; 105. Connector; 106. Rotating groove; 107. Clamping block; 108. Male seat body; 109. Clamping groove; 201. Second connecting wire; 202. Female seat body; 203. Sealing gasket; 204. Locking ring; 205. Limiting groove; 206. First fastener base; 207. Second fastener base; 208. Groove; 209. Sliding groove; 210. Spring; 211. Damper rod; 212. Limiting rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0025] For the embodiments, please refer to Figures 1-5 , the present invention provides a technical solution:

[0026] A self-locking waterproof connector for an electric vehicle, including a male seat assembly 1. A female seat assembly 2 is arranged at the bottom of the male seat assembly 1. The outer sides of a card slot 109 and a locking ring 204 are in fit. The materials of the card slot 109 and the locking ring 204 are both stainless steel. A copper core fastener 103 and a first fastener base 206 are correspondingly in fit, and a connecting fastener 104 and a second fastener base 207 are correspondingly in fit.

[0027] In this embodiment, as shown in Figure 1 , Figure 2 and Figure 4 , the male seat assembly 1 includes a first connecting wire 101. The bottom of the first connecting wire 101 is fixedly connected with a male seat body 108 through a connecting head 105. A copper core fastener 103 and a connecting fastener 104 are arranged at the bottom of the male seat body 108. The outer side of the connecting head 105 is rotatably connected with a waterproof shell 102. A card slot 109 is opened at the bottom of the waterproof shell 102. A plurality of card blocks 107 are arranged inside the card slot 109. The side surface of the card block 107 is fixedly connected with the side surface of the card slot 109. A rotating slot 106 is opened inside the waterproof shell 102. The inner wall of the rotating slot 106 is rotatably connected with the male seat body 108.

[0028] Among them, by setting the copper core fastener 103, the connecting fastener 104, the card block 107, the card slot 109, the locking ring 204, the limiting slot 205, the first fastener base 206 and the second fastener base 207, the problems that both the structure locking and separation are very time-consuming and laborious in operation, difficult to assemble, and the plug is easy to be damaged and fall off are solved, and the male seat assembly 1 and the female seat assembly 2 can be quickly installed and clamped. The copper core fastener 103, the connecting fastener 104 and the first fastener base 206, the second fastener base 207 correspond respectively, and are used for positioning the connection part. Then the card block 107 and the limiting slot 205 are correspondingly installed. Then the waterproof shell 102 is rotated to make the male seat assembly 1 and the female seat assembly 2 be clamped.

[0029] In this embodiment, as shown in Figure 1 , Figure 3 and Figure 5As shown in the figure, the female socket assembly 2 includes a second connecting wire 201 located at the bottom of the copper core fastener 103. The top of the second connecting wire 201 is fixedly connected to a female socket body 202. The top of the female socket body 202 is provided with a first fastener base 206 and a second fastener base 207. The top of the female socket body 202 is fixedly connected to a locking ring 204. A limiting groove 205 is formed on the side surface of the locking ring 204. Grooves 208 and sliding grooves 209 are respectively formed on the top of the female socket body 202. A sealing gasket 203 is arranged on the top of the female socket body 202. A spring 210 and a limiting rod 212 are arranged at the bottom of the sealing gasket 203. One end of the spring 210 is elastically connected to the sealing gasket 203, and the other end of the spring 210 is elastically connected to the groove 208. A damping rod 211 is arranged inside the spring 210. The limiting rod 212 is slidably connected to the sliding groove 209.

[0030] Among them, by setting the sealing gasket 203, groove 208, sliding groove 209, spring 210 and limiting rod 212, the sealing of the male socket assembly 1 and the female socket assembly 2 and the locking of the engaging part between the male socket assembly 1 and the female socket assembly 2 are realized. The bottom of the waterproof shell 102 abuts against the top of the sealing gasket 203. Then, when the waterproof shell 102 is pressed downward and the clamping block 107 is clamped to the bottom of the limiting groove 205, at this time, the spring 210 is compressed, and the waterproof shell 102 is rotated until the clamping block 107 rotates to another notch of the limiting groove 205. Under the action of the spring 210, the clamping block 107 abuts against another notch of the limiting groove 205, thereby realizing the locking of the male socket assembly 1 and the female socket assembly 2. The waterproof shell 102, the clamping block 107 and the locking ring 204 are rotatably connected to form a first layer of sealing. Then, the waterproof shell 102, the female socket body 202 and the sealing gasket 203 abut against each other to conduct a second layer of sealing, solving the sealing problems such as poor sealing performance, poor waterproof effect and unsatisfactory waterproof grade.

[0031] Working process of the utility model: When a self-locking waterproof connector for an electric vehicle designed by this solution is working, since the copper core fastener 103, the connecting fastener 104, the first fastener base 206 and the second fastener base 207 correspond to each other and can be used to position the connection, therefore, first align and fit the copper core fastener 103, the connecting fastener 104, the first fastener base 206 and the second fastener base 207, then install the clamping block 107 and the limiting groove 205 correspondingly, and then turn the waterproof shell 102 to engage the male seat assembly 1 and the female seat assembly 2. The bottom of the waterproof shell 102 abuts against the top of the sealing gasket 203. Then, the waterproof shell 102 is pressed downward. After the clamping block 107 is clamped to the bottom of the limiting groove 205, at this time, the spring 210 is compressed, and the waterproof shell 102 is rotated until the clamping block 107 rotates to another notch of the limiting groove 205. Under the action of the spring 210, the clamping block 107 abuts against another notch of the limiting groove 205, thus realizing the locking of the male seat assembly 1 and the female seat assembly 2. The waterproof shell 102, the clamping block 107 and the locking ring 204 are rotatably connected to form the first layer of seal, and then the waterproof shell 102, the female seat body 202 and the sealing gasket 203 abut against each other to conduct the second layer of seal.

[0032] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A self-locking waterproof connector for an electric vehicle, comprising a male seat assembly (1), characterized in that: The male socket assembly (1) includes a first connecting wire (101). The bottom of the first connecting wire (101) is fixedly connected to a male socket body (108) through a connector (105). A copper core fastener (103) and a connecting fastener (104) are arranged at the bottom of the male socket body (108). A waterproof shell (102) is rotatably connected to the outside of the connector (105). A clamping groove (109) is formed at the bottom of the waterproof shell (102). A plurality of clamping blocks (107) are arranged inside the clamping groove (109). The side surface of the clamping block (107) is fixedly connected to the side surface of the clamping groove (109). A rotating groove (106) is formed inside the waterproof shell (102). The inner wall of the rotating groove (106) is rotatably connected to the male socket body (108).

2. The self-locking waterproof connector for an electric vehicle according to claim 1, wherein: A female socket assembly (2) is arranged at the bottom of the male socket assembly (1). The female socket assembly (2) includes a second connecting wire (201) located at the bottom of the copper core fastener (103). The top of the second connecting wire (201) is fixedly connected to a female socket body (202).

3. The self-locking waterproof connector for electric vehicles according to claim 2, characterized in that: A first fastener base (206) and a second fastener base (207) are arranged at the top of the female socket body (202). A locking ring (204) is fixedly connected to the top of the female socket body (202). A limiting groove (205) is formed on the side surface of the locking ring (204).

4. The self-locking waterproof connector for an electric vehicle according to claim 3, wherein: A groove (208) and a sliding groove (209) are respectively formed at the top of the female socket body (202). A sealing gasket (203) is arranged at the top of the female socket body (202).

5. The self-locking waterproof connector for an electric vehicle according to claim 4, characterized in that: A spring (210) and a limiting rod (212) are arranged at the bottom of the sealing gasket (203). One end of the spring (210) is elastically connected to the sealing gasket (203), and the other end of the spring (210) is elastically connected to the groove (208).

6. The self-locking waterproof connector for an electric vehicle according to claim 5, characterized in that: A damping rod (211) is arranged inside the spring (210). The limiting rod (212) is slidably connected to the sliding groove (209).

7. The self-locking waterproof connector for an electric vehicle according to claim 1, characterized in that: The outside of the clamping groove (109) is in fit with the locking ring (204). The materials of both the clamping groove (109) and the locking ring (204) are stainless steel.

8. The self-locking waterproof connector for an electric vehicle according to claim 1, characterized in that: The copper core fastener (103) is in corresponding fit with the first fastener base (206), and the connecting fastener (104) is in corresponding fit with the second fastener base (207).

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