CN210272809U

CN210272809U - Charging gun head assembly

Info

Publication number: CN210272809U
Application number: CN201920694316.3U
Authority: CN
Inventors: 冯博; 赵庆; 朱盛营; 刘玉达; 朱恺; 史汝海; 王随亚; 王志伟
Original assignee: Ningbo Junsheng New Energy Automotive Technology Co ltd; Ningbo Junsheng Qunying Automobile System Co Ltd
Current assignee: Ningbo Junsheng New Energy Automotive Technology Co ltd; Ningbo Junsheng Qunying Automobile System Co Ltd
Priority date: 2019-05-14
Filing date: 2019-05-14
Publication date: 2020-04-07
Anticipated expiration: 2029-05-14

Abstract

The utility model discloses a rifle head subassembly charges, including a plurality of contact pins, wire, preceding insulation board, back insulation board, switch and cable, the contact pin has the electricity to be connected with the wire, and the wire has the electricity to be connected with switch and cable respectively, and preceding insulation board setting just is connected with the back insulation board outside the contact pin, and each contact pin and wire junction have sealing insulator, sealing insulator clamps in the back insulation board. The sealing insulator with the structure can reduce the use of parts and assembly processes. Integrative injection moulding's sealed insulator can closely cover in contact pin and wire junction, and airtight effect is splendid, reaches IPX7 water-proof effects, simple structure, and the steady quality has improved electrical component's security greatly, and reduce cost by a wide margin is favorable to automated production.

Description

Charging gun head assembly

Technical Field

The utility model belongs to the technical field of electric vehicle power supply unit, relate to the rifle that charges, more specifically say so, relate to a rifle head structure that charges.

Background

At present, in the process of charging electric automobiles, charging guns and external power supplies are required to be connected for charging operation no matter charging piles or vehicle-mounted standby chargers. The spare part is more in current rifle that charges, leads to assembly process complicated, as shown in figure 1, in order to reach better airtight effect, need adopt a plurality of O type circle, waterproof circle, sealed pad, and not only the assembly process is complicated, and the cost of labor is high, because the part is numerous moreover, in case the assembly is improper, or meet with and drop the impact after, then the whole waterproof function of rifle that charges is easy to lose efficacy, the reliability is low.

Disclosure of Invention

In order to solve the problem, the utility model discloses a rifle head subassembly charges seals metalwork and wire junction, and the rubber coating structure of moulding plastics of preferred an organic whole replaces original a plurality of sealed spare parts.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a rifle head subassembly charges, includes a plurality of contact pins, wire, preceding insulation board, back insulation board, switch and cable, the contact pin has the electricity to be connected with the wire, the wire has the electricity to be connected with switch and cable respectively, preceding insulation board sets up outside the contact pin and is connected with back insulation board, and each contact pin and wire junction have a sealing insulator, sealing insulator clamps and adorns in the insulation board of back.

Furthermore, each contact pin, the lead and the sealing insulator jointly form an encapsulation structure.

Furthermore, the encapsulation structure is formed by adopting an integrated injection molding process.

Furthermore, the contact pins comprise an L/N contact pin, a PE contact pin and a CC & CP contact pin, wherein the PE contact pin is connected with the switch through a lead.

Furthermore, a terminal is connected to the PE pin, the switch is connected with a wire, and the wire is connected with the terminal on the PE pin through the terminal.

Further, the L/N pins comprise L pins and N pins, and the CC & CP pins comprise CC pins and CP pins.

Furthermore, the contact pin adopts a groove labyrinth structure, and adjacent grooves are staggered with each other.

Furthermore, a plurality of grooves are formed in the rear insulating plate, and the sealing insulator is clamped in the grooves.

Further, the contact pin is in compression joint with the lead.

Further, the switch is a microswitch.

Compared with the prior art, the utility model has the advantages of as follows and beneficial effect:

1. the sealing insulator structure between the contact pin and the conducting wire in the charging gun head assembly can reduce the use of spare and accessory parts and shorten the assembly process.

2. The sealing insulator can tightly cover the joint of the contact pin and the lead, the airtight effect is excellent, the IPX7 waterproof effect is achieved, the cost is greatly reduced, and the automatic production is facilitated.

3. The contact pin groove adopts a labyrinth structure to prolong the surface sealing path of the contact pin, and effectively prevents liquid from permeating into a crimping area.

Drawings

Fig. 1 is a schematic assembly diagram of a charging gun head assembly in the prior art.

Fig. 2 is the utility model provides a pair of rifle head subassembly structural schematic that charges.

Fig. 3 is a schematic view of fig. 2 with the front insulating plate removed.

Fig. 4 is a schematic view of the rear insulating plate structure.

Description of reference numerals:

the circuit comprises a front insulating plate 1, an L/N hollow pin 2, a PE hollow pin 3, a CC & CP hollow pin 4, a sealing insulator 5, a rear insulating plate 6, a switch 7, a cable 8 and a lead 9.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings and embodiments, which are to be understood as illustrative only and not limiting the scope of the invention. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component. The connection referred to in the present invention includes not only direct connection, but also indirect connection formed by intermediate parts, including not only physical connection, but also electrical connection, signal connection.

As shown in fig. 2, the charging gun head assembly provided by this embodiment includes two L/N hollow pins 2 (two pins are provided, which are respectively an L pin and an N pin, and the specific positional relationship of the two pins can be designed as required, and can be interchanged left and right, and is required to correspond to a groove on the rear insulating plate), a PE hollow pin 3, a CC & CP hollow pin 4 (two pins are provided, which are respectively a CC pin and a CP pin, and the specific positional relationship of the two pins can be designed as required, and can be interchanged left and right, and is required to correspond to a groove on the rear insulating plate), a lead 9 connected to the pins, a front insulating plate 1, a rear insulating plate 6, a micro switch 7 and a cable 8, and the lead 9 is electrically connected to the micro switch 7 and the. Specifically, the hollow PE pin 3 is connected in parallel to the switch, and the lead wire 9 connected to the switch is connected to the hollow PE pin 3 through a terminal. Each pin and wire connection has a sealing insulator 5 (each pin and wire connection can be independently formed into a sealing insulator, or several pin and wire connections can be formed into a sealing insulator together, or all pin and wire connections can be formed into a sealing insulator together). The sealing insulator may be formed in various conventional ways, such as by attaching additional seals or waterproof glue at the joints. The pins, wires, and hermetic insulator are preferably integrally injection molded to form the overmold, which can also be formed by various conventional means, such as potting or encapsulation. The seal insulator 5 used in this example may be formed by an integral injection molding process.

As shown in fig. 4, a plurality of grooves adapted to the shape of the encapsulation structure are formed around the rear insulating plate 6, the sealing insulator with the pins is clamped in the grooves of the rear insulating plate, and the front insulating plate is connected with the rear insulating plate. The front insulating plate has a cavity therein for receiving the pin. A microswitch is a preferred component, and other switches may be substituted for the microswitch as desired. Specifically, all hollow contact pins adopt a groove labyrinth structure, and the groove labyrinth structure is that adjacent grooves are staggered with each other, so that the surface sealing path of the contact pins is prolonged, and liquid is prevented from permeating into a compression joint area.

It should be noted that hollow pins are a specific implementation of the present invention, and other types of pins, such as solid pins, may be used as long as they are conventional pins capable of forming electrical connections.

The preparation process of the utility model is as follows:

the utility model provides a take terminal, including the hollow contact pin of terminal, the hollow contact pin of terminal is connected to the crimping district, and the crimping is carried out to the crimping equipment, and the hollow contact pin afterbody terminal is connected with wire fixed connection, wherein, micro-gap switch and PE hollow contact pin doubling, wire one end is beaten the terminal earlier and is connected the back, inserts PE hollow contact pin terminal again, is connected with its cooperation. And respectively carrying out an integral injection molding process on the connection parts of the connected contact pins and the leads to form an encapsulated structure, thereby carrying out airtight protection on the connection area of the metal and the leads. After the injection molding is finished, the sealing insulator wrapped at the joint of the contact pin and the lead is clamped into the groove at the periphery of the rear insulating plate, and the rear insulating plate and the parts clamped in the rear insulating plate are integrally installed in the front insulating plate to form the gun head assembly.

Because the connection area of the metal and the lead adopts an integrated injection molding process to form the encapsulation structure, the air tightness is excellent, and sealing parts such as O-shaped rings, gaskets and the like are not needed.

The technical means disclosed by the scheme of the present invention is not limited to the technical means disclosed by the above embodiments, but also includes the technical scheme formed by the arbitrary combination of the above technical features. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications are also considered as the protection scope of the present invention.

Claims

1. The utility model provides a rifle head subassembly charges, includes a plurality of contact pins, wire (9), preceding insulation board (1), back insulation board (6), switch and cable (8), the contact pin has the electricity with the wire to be connected, the wire has the electricity with switch and cable respectively to be connected, preceding insulation board sets up outside the contact pin and is connected its characterized in that with the back insulation board: and a sealing insulator (5) is arranged at the joint of each contact pin and the lead, and the sealing insulator is clamped in the rear insulating plate.

2. A charging lance tip assembly according to claim 1, wherein: each contact pin, the lead and the sealing insulator jointly form an encapsulation structure.

3. A charging lance tip assembly according to claim 2, wherein: the encapsulation structure is formed by adopting an integrated injection molding process.

4. A charging lance tip assembly according to claim 1, wherein: the contact pins comprise an L/N contact pin (2), a PE contact pin (3) and a CC & CP contact pin (4), wherein the PE contact pin (3) is connected with the switch through a wire.

5. A charging lance tip assembly according to claim 4, wherein: the PE pin (3) is connected with a terminal, the switch is connected with a wire, and the wire is connected with the terminal on the PE pin through the terminal.

6. A charging lance tip assembly according to claim 4, wherein: the L/N pins comprise L pins and N pins, and the CC & CP pins comprise CC pins and CP pins.

7. A charging lance tip assembly according to claim 6, wherein: the contact pin adopts a groove labyrinth structure, and adjacent grooves are staggered with each other.

8. A charging lance tip assembly according to claim 1, wherein: the rear insulating plate (6) is provided with a plurality of grooves, and the sealing insulator (5) is clamped in the grooves.

9. A charging lance tip assembly according to claim 1, wherein: the contact pin is in pressure connection with the lead (9).

10. A charging lance tip assembly according to claim 1, wherein: the switch is a microswitch (7).