CN210040659U

CN210040659U - Car rifle that charges

Info

Publication number: CN210040659U
Application number: CN201920457348.1U
Authority: CN
Inventors: 丁高松
Original assignee: Ningbo Gaosong New Energy Technology Co Ltd
Current assignee: Ningbo Gaosong New Energy Technology Co Ltd
Priority date: 2019-04-04
Filing date: 2019-04-04
Publication date: 2020-02-07
Anticipated expiration: 2029-04-04

Abstract

The utility model relates to an automobile charging gun, which comprises a gun head, wherein a plurality of jacks are arranged on the gun head; the contact pin pressing plate is positioned in the gun head and is provided with a contact pin mounting hole corresponding to the jack, and the side wall of the contact pin mounting hole is provided with a gap for the contact pin to press in; the first ends of the contact pins are inserted into the corresponding jacks through the contact pin mounting holes, and the second ends of the contact pins are connected with the conductive wire cores; the method is characterized in that: the lateral wall of contact pin mounting hole is equipped with first fixed part, the contact pin outer wall is equipped with the second fixed part, the second fixed part with the cooperation of first fixed part is in order to restrict the contact pin removes along contact pin mounting hole axial direction. This rifle contact pin charges is firm, and difficult not hard up has improved charge stability and life.

Description

Car rifle that charges

Technical Field

The utility model relates to a new energy automobile field especially relates to an automobile charging rifle.

Background

At present, the market demand of new energy electric vehicles is increasing, and particularly along with the increase of policy support and vehicle purchasing subsidy for the new energy electric vehicles at home and abroad, the popularization and the popularization of the new energy electric vehicles become a necessary trend.

In order to gain the market, manufacturers continuously upgrade the technology of the new energy automobile and improve the performance of various matching devices so as to meet the requirements of users on performance and safety. At present, automobile charging guns on the market can basically meet the charging requirements of various new energy automobiles, and are convenient to use.

But present rifle that charges still has more not enough, for example, the contact pin of rifle that charges is comparatively simple with rifle head fixed mode, and only a stationary plane cooperates with the rifle head usually, leads to the contact pin not hard up like this, especially uses after the longer time, and contact failure's the condition such as contact when easily causing to charge influences user and uses experience.

SUMMERY OF THE UTILITY MODEL

In view of the above problem, an object of the present invention is to provide a vehicle charging gun with a firmly fitted contact pin to prevent the contact pin from loosening or shaking and to prolong the service life.

In order to achieve the above object, the utility model adopts the following technical scheme: a charging gun for a vehicle comprises a gun body,

the gun head is provided with a plurality of jacks;

the contact pin pressing plate is positioned in the gun head and is provided with a contact pin mounting hole corresponding to the jack, and the side wall of the contact pin mounting hole is provided with a gap for a contact pin to be pressed in;

the first ends of the contact pins are inserted into the corresponding jacks through the contact pin mounting holes, and the second ends of the contact pins are connected with the conductive wire cores;

the method is characterized in that:

the lateral wall of contact pin mounting hole is equipped with first fixed part, the contact pin outer wall is equipped with the second fixed part, the second fixed part with the cooperation of first fixed part is in order to restrict the contact pin removes along contact pin mounting hole axial direction.

Further, first fixed part is that circumference sets up boss on the contact pin mounting hole lateral wall, the second fixed part is that circumference sets up the first recess of contact pin outer wall, the boss with the assembly of first recess joint.

Furthermore, two convex strips distributed at intervals along the axial direction of the contact pin mounting hole are arranged on the outer wall of the contact pin, the first groove is formed between the convex strips, and the end face of each convex strip close to the front end face of the gun head is abutted against the rear end face of the jack.

Furthermore, contact pin outer wall circumference is provided with the second recess, install the packing ring in the second recess, the packing ring periphery with the jack inner wall offsets.

Furthermore, an insulating protective cap is arranged at the first end of the contact pin, and the protective cap is inserted into a fixing hole which is formed in the first end of the contact pin along the axial direction.

Further, the end part of the inner wall of the fixing hole is provided with a second chamfer so as to facilitate the insertion of the protective cap.

Furthermore, one end of the protective cap inserted into the fixing hole is provided with a split groove so that the protective cap can be conveniently inserted into the fixing hole.

Furthermore, a wire pressing hole is formed in the second end of the contact pin in the axial direction, the conductive wire core is in interference fit with the wire pressing hole, and a first chamfer is arranged at the end part of the inner wall of the wire pressing hole.

Compared with the prior art, the utility model has the advantages of: through the matching of the first groove and the boss, the contact pin can be prevented from moving back and forth along the jack, compared with the prior charging gun which only has one fixed surface matched with the gun head, the contact pin has a better stable effect and is not easy to loosen; the convex strip end surface close to the front end surface of the gun head is abutted against the rear end surface of the jack, so that the contact pin can be further limited to move towards the front; the gasket is arranged in the second groove of the contact pin, so that a good waterproof effect can be achieved, and the shaking of the contact pin can be reduced; the first chamfer is arranged at the end part of the wire pressing hole, so that the wire core can be prevented from being bent and broken for many times, and the service life is prolonged; the contact pin protective cap is arranged, so that the use safety can be improved, electric shock is prevented, the split groove is arranged, the second chamfer is arranged at the end part of the fixing hole, the protective plate can be conveniently inserted into the fixing hole, and the assembly efficiency is improved.

Drawings

Fig. 1 is a structural diagram of an embodiment of the charging gun for a vehicle according to the present invention.

Fig. 2 is an exploded view of fig. 1.

Fig. 3 is a schematic view of a cross-sectional structure of an embodiment of the charging gun for a vehicle of the present invention.

Fig. 4 is a schematic structural view of an embodiment of the contact pin of the car charging gun of the present invention.

Fig. 5 is an explosion structure diagram of an embodiment of the contact pin of the charging gun of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1 to 2, the charging gun of the present invention includes a gun head 1, a plurality of pins 2, and a pin pressing plate 3; the contact pin fixing device is characterized in that the gun head 1 is provided with a plurality of jacks 11, the first ends of the contact pins 2 are located in the jacks 11, the second ends of the contact pins are connected with the conductive wire cores 5, the contact pin pressing plate 3 is located in the gun head 1 and provided with contact pin mounting holes 31 for mounting the contact pins 2, the side walls of the contact pin mounting holes 31 are provided with gaps for the contact pins 2 to be pressed in, and the rear cover plate 4 is matched with the rear end of the gun head 1 to fix the contact pin pressing plate 3. The lateral wall of contact pin mounting hole 31 is equipped with first fixed part, the outer wall of contact pin 2 is equipped with the second fixed part, the second fixed part with the cooperation of first fixed part is in order to restrict contact pin 2 follows contact pin mounting hole 31 axial displacement. Of course, the charging gun of the present invention further includes a rear cover plate 4, a housing 7, a protection cover 8, etc., which are not described in detail herein since they belong to the prior art.

Specifically, as shown in fig. 3, the first fixing portion is circumferentially arranged on a boss 32 on the side wall of the pin mounting hole 31, the second fixing portion is circumferentially arranged on a first groove 21 on the outer wall of the pin 2, and the boss 32 is clamped and assembled with the first groove 21. Like this, compare in the rifle that charges in the past only a stationary plane and rifle head complex contact pin assembly methods, can make the contact pin more stable, prevent that the contact pin back-and-forth movement from causing contact failure scheduling problem. Of course, the arrangement form of the first fixing part and the second fixing part can be other forms, for example, a groove is arranged on the side wall of the pin mounting hole, a boss is arranged on the outer wall of the pin, and the pin is axially fixed to the pin mounting hole as long as the pin is opposite.

As shown in fig. 3 to 4, as a preferred embodiment, the outer wall of the pin 2 is provided with two protruding strips 22 distributed at intervals along the axial direction of the pin mounting hole 31, the first groove 21 is formed between the protruding strips 22, and the end surface of the protruding strip 22 close to the front end surface of the lance tip 1 abuts against the rear end surface of the insertion hole 11. By adopting the design, the contact pin can be further prevented from moving forwards relative to the gun head, so that the contact pin is more stable.

In this embodiment, the outer wall circumference of the contact pin 2 is further provided with a second groove 23, a gasket 6 is installed in the second groove 23, and the periphery of the gasket 6 abuts against the inner wall of the insertion hole 11. Through setting up the packing ring, can reduce the contact pin and control and rock on the one hand to form certain buffering between contact pin and jack, make the use of rifle that charges experience better, on the other hand sets up inside the packing ring can prevent that outside water from getting into the rifle that charges through the rifle head, improves the safety in utilization of rifle that charges.

In the present embodiment, as shown in fig. 3 and 5, in order to prevent the contact pin 2 from being touched from the lance head 1 to cause electric shock hazard, the first end of the contact pin 2 is provided with an insulating protective cap 25, the protective cap 25 is inserted into a fixing hole 26 axially formed in the first end of the contact pin 2, and power is supplied by the contact of the side wall of the contact pin 2 with a charging socket of an automobile during charging. Therefore, fingers extend into the gun head carelessly, and the insulating protective cap is touched to prevent electric shock and improve the use safety.

Preferably, the end portion of the inner wall of the fixing hole 26 is provided with a second chamfer 261, so that the alignment insertion is facilitated when the protection cap 25 is assembled, and the assembling efficiency is improved.

Preferably, the end of the protective cap 25 inserted into the fixing hole 26 is provided with a splitting groove 251, so that when the protective cap 25 is inserted into the fixing hole 26, two sides of the splitting groove 251 can deform towards the splitting groove 251 to facilitate the insertion of the protective cap 25, and when the protective cap 25 is inserted in place, the deformation is recovered, so that the protective cap has good operation performance. The number of the splitting grooves 251 may be one, two crosses, or other forms.

As shown in fig. 4, in this embodiment, the second end of the pin 2 is provided with a wire pressing hole 24 along the axial direction, the conductive wire core 5 is interference-assembled with the wire pressing hole 24, and the end portion of the inner wall of the wire pressing hole 24 is provided with a first chamfer 241. The design can protect the wire core, and the wire core is prevented from being damaged or even broken by the convex edge of the wire pressing hole when the wire core is bent in the process of pressing the wire core, so that the assembly quality and the yield are improved.

In addition to the above-mentioned modifications, other similar modifications are also included in the scope of the present invention, and are not described herein in detail. While embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A charging gun for a vehicle comprises a gun body,

the gun head (1) is provided with a plurality of insertion holes (11);

the contact pin pressing plate (3) is positioned in the gun head (1), a contact pin mounting hole (31) corresponding to the jack (11) is formed in the contact pin pressing plate (3), and a gap for the contact pin (2) to press in is formed in the side wall of the contact pin mounting hole (31);

a plurality of pins (2), wherein first ends of the pins (2) are inserted into the corresponding jacks (11) through the pin mounting holes (31) and second ends of the pins are connected with the conductive wire cores (5);

the method is characterized in that:

the lateral wall of contact pin mounting hole (31) is equipped with first fixed part, contact pin (2) outer wall is equipped with the second fixed part, the second fixed part with the cooperation of first fixed part is in order to restrict contact pin (2) are along contact pin mounting hole (31) axial direction removal.

2. The vehicle charging gun of claim 1, wherein:

the first fixing part is circumferentially arranged on a boss (32) on the side wall of the pin mounting hole (31), the second fixing part is circumferentially arranged on a first groove (21) of the outer wall of the pin (2), and the boss (32) is connected with the first groove (21) in a clamping mode for assembly.

3. The vehicle charging gun of claim 2, wherein:

the outer wall of the contact pin (2) is provided with two convex strips (22) which are distributed at intervals along the axial direction of the contact pin mounting hole (31), the first groove (21) is formed between the convex strips (22), and the end face, close to the front end face of the gun head (1), of each convex strip (22) is abutted to the rear end face of the insertion hole (11).

4. The vehicle charging gun of claim 1, wherein:

contact pin (2) outer wall circumference is provided with second recess (23), install packing ring (6) in second recess (23), packing ring (6) periphery with jack (11) inner wall offsets.

5. The vehicle charging gun of claim 1, wherein:

the first end of the contact pin (2) is provided with an insulating protective cap (25), and the protective cap (25) is inserted into a fixing hole (26) which is formed in the first end of the contact pin (2) along the axial direction.

6. The vehicle charging gun of claim 5, wherein:

the end of the protective cap (25) inserted into the fixing hole (26) is provided with a splitting groove (251).

7. The vehicle charging gun of claim 5, wherein:

and a second chamfer (261) is arranged at the end part of the inner wall of the fixing hole (26).

8. The vehicle charging gun of claim 1, wherein:

the second end of the contact pin (2) is provided with a wire pressing hole (24) along the axial direction, the conductive wire core (5) is in interference fit with the wire pressing hole (24), and the end part of the inner wall of the wire pressing hole (24) is provided with a first chamfer (241).