CN108429043B - Charging gun with elastic contact pin terminal - Google Patents

Abstract

The charging gun with the elastic pin terminals comprises a gun body and a plurality of pin terminals arranged at the front end part of the gun body, wherein elastic structures are arranged on the outer sides of the pin terminals and can elastically deform in the radial direction of the pin terminals. Compared with the prior art, the elastic structure capable of elastically deforming is arranged on the outer side of the contact pin terminal, so that in actual use, when the charging gun is inserted into the charging seat of the automobile, the contact pin terminal can be correspondingly inserted into the jack, and the elastic structure on the outer side of the contact pin terminal can elastically deform, so that the larger friction between the traditional contact pin terminal and the jack is avoided, the abrasion between the contact pin terminal and the jack is reduced, and the service lives of the charging gun and the jack of the charging seat of the electric automobile are prolonged.

Description

A charging gun with elastic pin terminals

technical field

The invention relates to the technical field of charging piles, in particular to a charging gun with elastic pin terminals.

Background technique

Electric vehicle (BEV) refers to a vehicle that is powered by on-board power supply and driven by a motor, and meets the requirements of road traffic and safety regulations. Since electric vehicles have less environmental impact than conventional vehicles, their prospects are widely optimistic. In recent years, the popularity of electric vehicles has become higher and higher, and the problem of how to solve the problem of how to charge electric vehicles in a timely and effective manner has also followed. As a kind of equipment specially designed to facilitate the timely charging of electric vehicles and other products, the charging pile has received extensive attention and recognition once it came out.

The market demand for electric vehicles such as pure electric vehicles and hybrid electric vehicles continues to expand, and the demand for charging guns is also increasing. The charging pile generally includes a pile body, a cable and a charging gun, and the charging gun is connected to the pile body through a cable. The charging gun generally includes a gun body and a pin terminal disposed at the front end of the gun body, the pin terminal is connected with the cable, and the pin terminal includes a charging terminal and a communication terminal. When in use, the gun body is inserted into the charging base of the car, the charging terminal is plugged with the charging hole in the charging base for charging, and the communication terminal is plugged with the jack in the charging base for signal interaction. However, the pin terminals in the existing charging gun are hard, and the jack of the car charging base is hard or its inner wall is elastic. When the hard pin terminal and the jack of the charging stand are plugged and unplugged for a long time, the inner wall of the jack is easily damaged, and even the jack is damaged and the charging stand needs to be replaced. In addition, because the plugging force of the charging gun and the charging socket needs to be within the national standard range, the size design of the charging gun head must ensure that a certain gap must be maintained between the pin terminal and the inner wall of the charging socket. This gap will inevitably lead to the charging gun. When inserting the charging stand, it cannot be inserted completely coaxially, that is, when inserting, the hard terminal of the charging gun will form a unilateral excessive extrusion force on the inner hole wall of the charging stand. The coating falls off, which in turn affects the quality of the electrical conductivity and communication signal, and shortens the service life of the charging gun.

SUMMARY OF THE INVENTION

In view of the above-mentioned technical problems in the prior art, the present invention provides a charging gun with elastic pin terminals that reduces the wear between the pin terminals and the inner wall of the car charging base, ensures the quality of communication signals, and prolongs the service life of the charging gun.

For achieving the above object, the present invention provides the following technical solutions:

A charging gun with elastic pin terminals is provided, comprising a gun body and a plurality of pin terminals arranged at the front end of the gun body, the outer side of the pin terminals is provided with an elastic structure, and the elastic structure can be The pin terminal is elastically deformed in the radial direction when it is pressed.

Wherein, the elastic structure is an elastic sheet, the two ends of the elastic sheet are respectively fixed on the two ends of the pin terminal, and the middle part of the elastic sheet is arched outward.

Wherein, each of the pin terminals is correspondingly provided with two or more of the elastic pieces.

Wherein, the elastic structure is an elastic sleeve, two ends of the elastic sleeve are respectively fixed on the two ends of the pin terminal, and the middle part of the elastic sleeve is arched outward.

Wherein, the elastic structure and the pin terminal are an integrated structure.

Wherein, the elastic structure and the pin terminal are detachably connected.

Wherein, the front end portion of the elastic structure is bent to form a front bending portion, and the front bending portion is attached to the front end surface of the pin terminal; the front end portion of the pin terminal is provided with a front axial hole, the The front end portion of the pin terminal is provided with a knob, and the knob is fixedly connected with the front axial hole and jointly clamps the front bending portion.

Wherein, the knob and the axial hole are threadedly connected.

Wherein, the pin terminal includes a tail seat and a terminal body, the rear end portion of the elastic structure is bent to form a rear bending portion, and the rear bending portion is located between the tail seat and the terminal body, so The tailstock is fixedly connected with the terminal body and jointly clamps the rear bending portion.

Wherein, the tailstock and the terminal body are screwed together.

Beneficial effects of the present invention:

A charging gun with elastic pin terminals of the present invention includes a gun body and a plurality of pin terminals arranged at the front end of the gun body. The outer side of the pin terminals is provided with an elastic structure, and the elastic structure can be received by the pin terminals. Elastic deformation occurs in the radial direction when pressed. Compared with the prior art, the present invention is provided with an elastically deformable elastic structure on the outer side of the pin terminal, so in actual use, when the charging gun is inserted into the charging seat of the car, the pin terminal will correspond to the one inserted into the charging seat. The elastic structure on the outside of the socket and pin terminal will be elastically deformed to avoid large friction between the pin terminal and the socket, thus reducing the wear between the pin terminal and the socket, ensuring the quality of communication signals, extending the charging gun and electric vehicles The life of the charging stand jack.

Description of drawings

FIG. 1 is a schematic structural diagram of a charging gun with elastic pin terminals in an embodiment.

FIG. 2 is a schematic structural diagram of a pin terminal in an embodiment.

FIG. 3 is a schematic cross-sectional view of FIG. 2 .

FIG. 4 is a schematic structural diagram of another pin terminal in the embodiment.

Reference number:

gun body 1;

Pin terminal 2, knob 21, tailstock 22, terminal body 23;

Elastic structure 3 , front bending part 31 , rear bending part 32 .

Detailed ways

The present invention will be described in detail below with reference to specific embodiments and accompanying drawings.

A charging gun with elastic pin terminals in this embodiment, as shown in FIG. 1 to FIG. 3 , includes a gun body 1 and several pin terminals 2 arranged at the front end of the gun body 1 . The outer side is provided with an elastic structure 3, the elastic structure 3 can elastically deform in the radial direction of the pin terminal 2, and the electrical signal of the pin terminal 2 is transmitted to the peripheral car jack through the elastic structure 3, and the elastic structure 3 is made of metal material of. Compared with the prior art, the present invention is provided with an elastically deformable elastic structure 3 on the outer side of the pin terminal 2. Therefore, in actual use, when the charging gun is inserted into the charging seat of the car, the pin terminal 2 will be inserted correspondingly. The elastic structure 3 on the outer side of the pin terminal 2 will be elastically deformed, avoiding the large friction between the traditional pin terminal 2 and the socket, thus reducing the wear between the pin terminal 2 and the socket, and ensuring the quality of the communication signal, Extend the life of the charging gun.

Specifically, the elastic structure 3 is an elastic sheet, the two ends of the elastic sheet are respectively fixed to the two ends of the pin terminal 2, and the middle part of the elastic sheet is arched outward. For balanced force and smooth insertion and removal, each pin terminal 2 is provided with two elastic pieces correspondingly, and the two elastic pieces are located on the opposite side of the pin terminal 2. Of course, there can be more than two other elastic pieces in practice. .

Alternatively, the elastic structure 3 is an elastic sleeve, the two ends of the elastic sleeve are respectively fixed to the two ends of the pin terminal 2, and the middle part of the elastic sleeve is arched outward. The elastic sleeve can surround the entire pin terminal 2 , and the insertion and removal is smoother, and can protect the entire pin terminal 2 .

In practice, the elastic structure 3 and the pin terminal 2 may be an integrated structure. As shown in FIG. 4 , both ends of the elastic structure 3 are attached and fixed to the surface of the pin terminal 2 . It can also be that the interior of the pin terminal 2 is hollow, and the sidewalls are spaced outwardly arched elastic strips, so that the structure is more compact.

In addition, the elastic structure 3 and the pin terminal 2 can be detachably connected, as shown in FIGS. 2 and 3 , the specific structure is that the front end of the elastic structure 3 is bent to form a front bending part 31 , and the front bending part 31 Stick to the front end face of the pin terminal 2; the front end of the pin terminal 2 is provided with a front axial hole, the front end of the pin terminal 2 is provided with a knob 21, the knob 21 is screwed with the axial hole, and the knob 21 is connected with the axial hole. The front axial holes are fixedly connected and jointly clamp the front bent portion 31 . The pin terminal 2 includes a tailstock 22 and a terminal body 23. The rear end of the elastic structure 3 is bent to form a rear bending portion 32. The rear bending portion 32 is located between the tailstock 22 and the terminal body 23. The tailstock 22 and the terminal The body 23 is fixedly connected and jointly clamps the rear bending portion 32 , and the tailstock 22 and the terminal body 23 are screwed together.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, not to limit the protection scope of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that , the technical solutions of the present invention may be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention.

Claims (6)

1. The utility model provides a rifle that charges of area elasticity contact pin terminal which characterized by: the gun comprises a gun body and a plurality of pin terminals arranged at the front end part of the gun body, wherein elastic structures are arranged on the outer sides of the pin terminals and can elastically deform in the radial direction of the pin terminals;

the elastic structure is detachably connected with the pin terminal; the pin terminal is divided into three parts, namely a tailstock, a terminal body and a knob arranged at the front end part of the terminal body;

the front end part of the elastic structure is bent to form a front bending part, and the front bending part is attached to the front end surface of the pin terminal;

the front end part of the pin terminal is provided with a front axial hole, and the knob is fixedly connected with the front axial hole and clamps the front bending part together;

the rear end part of the elastic structure is bent to form a rear bending part, the rear bending part is located between the tailstock and the terminal body, and the tailstock and the terminal body are fixedly connected and clamp the rear bending part together.

2. The charging gun with elastic pin terminals as claimed in claim 1, wherein: the elastic structure is an elastic sheet, two end parts of the elastic sheet are respectively fixed at two end parts of the contact pin terminal, and the middle part of the elastic sheet is arched outwards.

3. The charging gun with elastic pin terminals as claimed in claim 2, wherein: each contact pin terminal is correspondingly provided with more than two elastic sheets.

4. The charging gun with elastic pin terminals as claimed in claim 1, wherein: the elastic structure is an elastic sleeve, two end parts of the elastic sleeve are respectively fixed at two end parts of the contact pin terminal, and the middle part of the elastic sleeve is arched outwards.

5. The charging gun with elastic pin terminals as claimed in claim 1, wherein: the knob is in threaded connection with the axial hole.

6. The charging gun with elastic pin terminals as claimed in claim 1, wherein: the tailstock is in threaded connection with the terminal body.

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