CN206524475U - A kind of high-voltage great-current connector - Google Patents

Abstract

The utility model discloses a kind of high-voltage great-current connector, the socket being adapted to including plug with plug, the plug side is provided with plug male terminal, and socket side is provided with socket female terminal, and the socket also includes the hat spring being connected with the plug male terminal being arranged in socket female terminal jack；The fixed part of the hat spring including two ends and the connecting portion of centre, the connecting portion is by continuous concavo-convex shell fragment and the elastic piece structure disconnected up and down is uniformly alternate constitutes, and above-mentioned shell fragment two ends connect with fixed part respectively.The problems such as high-voltage great-current connector in the utility model solves connector loosening, loose contact using new hat spring structure connection plug and socket, contact area is small, contact engaging and separating force is excessive, makes charge connector more convenient, safety in use.

Description

A high-voltage high-current connector

technical field

The utility model belongs to the field of connectors for vehicles, in particular to a connection structure of a high-voltage and high-current connector for electric vehicles.

Background technique

The electrical charging connector for electric vehicles is the connecting device used by the charging station to charge electric vehicles. Its function is to connect the battery of the electric vehicle to the charging circuit to charge the battery. structure. The electrical charging connectors for electric vehicles in the prior art all use a linking method to prevent the mutually butted connectors from being separated from each other during work. There are also connection methods using ordinary crown springs or torsion springs. However, in the actual use process, there are The plug is easy to loose, poor contact, small contact area, excessive plugging force and other problems, which cause great trouble to the use of the connector during the charging process.

In view of the above inconveniences in use, it is necessary to further improve the existing high-voltage and high-power connectors in the field of electric vehicles to make them more in line with the needs of actual use.

Contents of the invention

In order to solve the deficiencies of the prior art, the utility model provides a new type of high-voltage and high-current connector for electric vehicles, which is used to solve problems such as connector looseness, poor contact, small contact area, and excessive plugging force.

The technical effect to be achieved by the utility model is realized through the following schemes:

The high-voltage and high-current connector provided by the utility model includes a socket adapted to the plug and the plug. The plug male terminal is provided on the plug side, and the socket female terminal is provided on the socket side. The crown spring connected to the male terminal of the plug; the crown spring includes fixed parts at both ends and a connecting part in the middle, and the connecting part is composed of continuous concave-convex elastic pieces and up and down disconnected elastic pieces that are uniformly alternated. Both ends of the shrapnel are connected to the fixing part respectively.

Further, the concave-convex elastic piece in the crown spring connection part includes concave parts and convex parts, and the number of the concave parts and convex parts is 2-4.

To further optimize the structure, the upper and lower shrapnel structure of the crown spring connection part includes an upper shrapnel and a lower shrapnel, and a deformation connection space is provided between the upper and lower shrapnels; When the force is applied, the upper shrapnel is in contact with the lower shrapnel.

Further preferably, the length of the concave-convex elastic piece is equal to the sum of the lengths of the upper elastic piece and the lower elastic piece.

Further, both the upper elastic piece and the lower elastic piece protrude outward or inward, and are not parallel to the central axis of the crown spring. Preferably, the upper elastic piece and the lower elastic piece protrude outward, and form an angle of 12-25 degrees with the central axis of the crown spring.

Further, the crown spring is a discontinuous structure.

Further, the crown spring is made of copper alloy material, and is an integrally formed cast alloy part.

Further, an insulating cap is provided on the top of the plug male terminal.

The utility model has the following advantages:

The high-voltage and high-current connector in the utility model adopts a new crown spring structure to connect the plug and the socket, which solves the problems of connector looseness, poor contact, small contact area, and excessive plugging force, making the charging connector more reliable during use. Convenient and safe.

Description of drawings

Fig. 1 is a schematic diagram of the crown spring in the high-voltage high-current connector of the present invention;

Figure 2 is a schematic diagram of the assembly of the current connector in the utility model;

FIG. 3 is a schematic cross-sectional view of the current connector in the present invention.

detailed description

Below in conjunction with accompanying drawing and embodiment the utility model is described in detail.

The structure of the high-voltage and high-current connector provided in this embodiment is shown in Figures 1-3.

The high-voltage and high-current connector in the described embodiment includes a socket adapted to the plug and the plug. The plug male terminal 3 is provided on the plug side, and the socket female terminal 2 is provided on the socket side. Since the plug and the socket rely on the male terminal and the female terminal The terminals are connected by the matching structure, so the external structure of the plug and the socket is omitted in the drawings. The socket female terminal 2 on the socket side is provided with a socket for insertion with the male terminal, and a crown spring 1 is provided at the connection between the male terminal and the female terminal.

The structure of the crown spring 1 is shown in Figure 1. The crown spring 1 includes fixing parts 104 and 105 at both ends, and also includes a connecting part in the middle, the connecting part is composed of a continuous concave-convex elastic piece, such as 101, and an up and down disconnected elastic piece structure, such as the elastic piece formed by the upper elastic piece 102 and the lower elastic piece 103 The structure is evenly formed alternately, that is, the two sides of the continuous concave-convex shrapnel are the shrapnel structures that are disconnected up and down, and the two sides of the shrapnel structure that are disconnected up and down are the continuous concave-convex shrapnel structures. Regardless of whether it is a continuous concave-convex elastic sheet structure or a vertically disconnected elastic sheet structure, both ends of the elastic sheet are connected to the fixing parts 104 and 105 respectively. A deformation connection space is provided between the upper and lower elastic pieces. The upper elastic piece 102 and the lower elastic piece 103 are not connected when no force is applied. When an external axial force is applied, the upper elastic piece and the lower elastic piece are in contact.

In the crown spring structure in the prior art, the crown spring composed of continuous concave-convex shrapnel structure is often used, which leads to a large insertion force, and the terminal is easily taken out during the insertion and extraction process. After the structure of the crown spring in the embodiment, since it includes a disconnected shrapnel structure, the plugging force between the terminals is greatly reduced, and because the upper and lower shrapnels are still in contact after receiving the axial force during use, the use of this The crown spring structure shown in the embodiment does not affect the conduction of electric current. In the actual use process, on the one hand, in order to maximize the utilization of the material used to make the crown spring, and on the other hand, to make the elastic deformation of the concave-convex shrapnel conform to the deformation connection space of the upper and lower shrapnel, it is better to make the length of the concave-convex shrapnel and the upper shrapnel And the sum of the lengths of the lower shrapnel is set to be equal.

In order to further realize that the upper and lower elastic pieces can be loosened or combined according to the force, the upper elastic piece and the lower elastic piece both protrude outward or inward, and are not parallel to the central axis of the crown spring. Still further preferably, as shown in the drawings, the upper elastic piece 102 and the lower elastic piece 103 protrude outward, and form an angle of 12-25 degrees with the central axis of the crown spring. The angle formed by the upper and lower shrapnel and the central axis is set to be the same. Once the crown spring structure is subjected to the force in the direction of the central axis, the fixed part of the crown spring and the upper and lower shrapnel will be deformed, and the upper and lower shrapnel will move to the middle and be connected together to ensure the stability of the shrapnel. The contact between them ensures the conduction of electric current.

For the convenience of manufacture, the crown spring in the embodiment is an integrally formed copper alloy casting. In order to further achieve the effective drawing force, the crown spring is provided with a discontinuous structure, that is, the crown spring is designed as an unclosed tubular shape. In order to ensure the elasticity of the crown spring structure, the concave-convex shrapnel in the crown spring connection part includes concave parts and convex parts, and the number of the concave parts and convex parts is preferably 2-4.

Further, for the purpose of safe use, an insulating cap 4 is provided on the top of the plug male terminal.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present invention and not to limit them. Although the embodiments of the present invention have been described in detail with reference to the preferred embodiments, those skilled in the art Personnel should understand that modifications or equivalent replacements can still be made to the technical solutions of the embodiments of the utility model, and these modifications or equivalent replacements cannot make the modified technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims (10)

1. A high-voltage and high-current connector, comprising a socket adapted to the plug and the plug, a male terminal of the plug is provided on the side of the plug, and a female terminal of the socket is provided on the side of the socket, and it is characterized in that: The socket also includes a crown spring connected to the male terminal of the plug, which is arranged in the female terminal socket of the socket; the crown spring includes fixing parts at both ends and a connecting part in the middle, and the connecting part is composed of continuous concave-convex elastic pieces And the upper and lower shrapnel structures are evenly and alternately formed, and the two ends of the shrapnel are respectively connected to the fixing part. 2. The high-voltage and high-current connector according to claim 1, characterized in that: the concave-convex elastic piece in the crown spring connection part includes a concave part and a convex part, and the number of the concave part and the convex part is 2-4. 3. The high-voltage and high-current connector according to claim 1, characterized in that: the structure of the upper and lower shrapnel of the crown spring connection part includes an upper shrapnel and a lower shrapnel, and a deformation connection space is provided between the upper and lower shrapnels; the upper shrapnel and the lower shrapnel The lower shrapnel is disconnected under no stress, and the upper shrapnel contacts the lower shrapnel when an external axial force is applied. 4. The high-voltage and high-current connector according to claim 3, wherein the length of the concave-convex elastic piece is equal to the sum of the lengths of the upper elastic piece and the lower elastic piece. 5 . The high-voltage and high-current connector according to claim 3 , wherein the upper elastic piece and the lower elastic piece protrude outward or inward, and are not parallel to the central axis of the crown spring. 5 . 6. The high-voltage and high-current connector according to claim 5, wherein the upper elastic piece and the lower elastic piece protrude outward, and form an angle of 12-25 degrees with the central axis of the crown spring. 7. The high-voltage and high-current connector according to claim 1, wherein the crown spring is a discontinuous structure. 8. The high-voltage and high-current connector according to claim 1, wherein the crown spring is made of copper alloy. 9. The high-voltage and high-current connector according to claim 1, wherein the crown spring is an integrally formed cast alloy part. 10. The high-voltage and high-current connector according to claim 1, wherein an insulating cap is provided on the top of the plug male terminal.