CN211017485U

CN211017485U - Contact pin with liquid cooling channel for charging gun

Info

Publication number: CN211017485U
Application number: CN201922165897.4U
Authority: CN
Inventors: 李德胜; 张会娟; 王钰鸣; 郑隽一; 张育铭
Original assignee: National Innovation Energy Automobile Intelligent Energy Equipment Innovation Center Jiangsu Co Ltd
Current assignee: Guochuang Mobile Energy Innovation Center Jiangsu Co Ltd
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-07-14
Anticipated expiration: 2029-12-06

Abstract

The utility model discloses a contact pin with a liquid cooling channel for a charging gun, which comprises a contact pin sheath, a contact pin inner core and an adapter; the pin sheath is tightly connected with the adapter, and the front end of the pin inner core is inserted into the pin sheath; the cable is connected with the rear end of the contact pin inner core, and the cooling liquid pipeline is tightly connected with the adapter; the utility model discloses a structural adjustment is provided with the coolant liquid runner, takes away the heat that the rifle that charges produced in the charging process through the coolant liquid.

Description

Contact pin with liquid cooling channel for charging gun

Technical Field

The utility model relates to a direct current fills the high-power conduction formula field of charging of electric pile, specifically is a rifle that charges is with contact pin of taking liquid cooling passageway.

Background

Nowadays, electric vehicles are increasingly widespread, the energy density of batteries is gradually increased, and the realization of quick and safe charging becomes a problem to be solved urgently in the industry. The used contact pin of traditional rifle that charges is solid contact pin, and the rifle that charges is inside not to increase other cooling system, relies on cable heat conduction and with the convection heat dissipation of air. When a large current is used for charging, the temperature rise of the terminal can be increased sharply, and the temperature rise exceeds a safety range, so that quick charging cannot be completed.

SUMMERY OF THE UTILITY MODEL

Because the inside high-efficient safe cooling system that does not possess of rifle that charges at present stage easily influences whole charging process, reduces charge efficiency, consequently for solving above-mentioned problem, the utility model provides a following technical scheme: a contact pin with a liquid cooling channel for a charging gun comprises a contact pin sheath, a contact pin inner core and an adapter; the pin sheath is tightly connected with the adapter, and the front end of the pin inner core is inserted into the pin sheath; still include cable and coolant liquid pipeline, the cable with contact pin inner core rear end is connected, the coolant liquid pipeline with adapter zonulae occludens.

The pin sheath is in a cylindrical blind hole shape, and the outer wall of the pin sheath is provided with an adapter fixing position; the adapter includes the adapter terminal surface, and inside has the cavity, the adapter terminal surface with the fixed position fastening cooperation of adapter.

The adapter still includes the hose connection position, the adapter with the coolant liquid pipeline passes through hose connection position zonulae occludens.

The cavity inside the adapter is communicated with the pin jacket and the cooling liquid pipeline.

The contact pin sheath is characterized by further comprising a contact pin inner core fixing position and a contact pin inner core end face, wherein the contact pin inner core fixing position is arranged inside the contact pin sheath, and the contact pin inner core end face is arranged at the front end of the contact pin inner core; the end face of the contact pin inner core is fixedly, fixedly and tightly matched with the contact pin inner core.

The rear end of the contact pin inner core further comprises a cable connecting position and a cable outer cover connecting position, and the cable further comprises a cable outer cover; the cable connecting position is connected with the inside of the cable, and the cable outer cover connecting position is connected with the cable outer cover.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the charging gun is internally provided with a cooling liquid flow channel, wherein the cooling liquid is introduced to take away the heat generated by the charging gun in the charging process.

2. The charging gun pin is internally provided with a cooling liquid back-and-forth flow passage, so that the cooling liquid can flow through the joint of the core pieces to cool the main heating components.

3. The flow channel inside the contact pin is simple in design structure, convenient to machine and form and convenient to install.

4. Can use thinner cable to pass through higher electric current for the rifle simple operation that charges.

5. The protection performance is good, and the protection level of IP67 can be realized on the whole charging gun.

Drawings

FIG. 1 is a cross-sectional view of the pin assembly of the present invention;

FIG. 2 is a cross-sectional view of the pin assembly of the present invention at position A-A;

FIG. 3 is a cross-sectional view of the pin assembly of the present invention taken at the B-B position;

fig. 4 is a structure diagram of a pin assembly according to embodiment 1 of the present invention;

fig. 5 is an exploded view of the pin assembly according to embodiment 1 of the present invention;

fig. 6 is a cross-sectional view of a pin assembly according to embodiment 1 of the present invention;

fig. 7 is a view of the flow path of the internal liquid in embodiment 1 of the present invention;

fig. 8 is a pin assembly structure diagram according to embodiment 2 of the present invention;

fig. 9 is an exploded view of a pin assembly according to embodiment 2 of the present invention;

fig. 10 is a cross-sectional view of a pin assembly according to embodiment 2 of the present invention;

fig. 11 is a view of the flow path of the internal liquid in embodiment 2 of the present invention;

in the figure: 1 pin sheath, 101 adapter fixed position, 102 pin inner core fixed position, 2 pin inner core, 201 pin inner core terminal surface, 202 cable connection position, 203 cable outside connection position, 3 adapter, 301 adapter terminal surface, 302 hose connection position, 4 cable, 401 cable outside connection position, 5 coolant pipeline.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1:

referring to fig. 1-7, a contact pin with a liquid cooling channel for a charging gun, the contact pin assembly of which is composed of a contact pin sheath 1, a contact pin inner core 2 and an adapter 3. The contact pin sheath 1 is a cylindrical blind hole, the outer wall of the contact pin sheath 1 provides an adapter fixing position 101, namely, the contact position of the contact piece matched with the adapter fixing position is inserted, and the inner wall of the contact pin sheath forms a cavity to provide the accommodating position of the contact pin inner core 2. The front end part of the contact pin inner core 2 is a fan-shaped shaft part with a cavity, and the fan-shaped concave position and the outer wall of the contact pin sheath 1 form a pipeline for containing cooling liquid. The cavity of the needle inserting core 2 is provided with another pipeline which forms a reciprocating communication loop with the pipeline, and the liquid coolant is communicated in the loop to cool the needle inserting assembly.

The pin sheath 1 is internally provided with a pin inner core fixing position 102 and an adapter fixing position 101. The pin inner core fixing position 101 is tightly and hermetically matched with the pin inner core end surface 201 to achieve the purposes of rotation prevention, positioning and leakage prevention, and the structure is shown in fig. 3. The adapter fixing position 101 of the pin sheath 1 is tightly matched with the end surface 301 of the adapter in a sealing manner, so that the purposes of positioning, rotation prevention and sealing are achieved. The adapter 3 is internally provided with a cavity which is communicated with the loop.

The pin inner core 2 further provides a cable connection site 202 for connecting the pin inner core 2 with the cable 4, the cable connection site 202 shown in fig. 6 is a cylindrical structure, a notch is formed at a position close to the root of the cable connection site, and the cable connection site is tightly connected with the copper core of the cable 4 in an inserting and clamping manner, so that current is transmitted to the pin assembly from the copper core of the cable. The cable 4 is composed of a copper core and an outer cover, and a space for containing cooling liquid is arranged between the copper core and the outer cover 401 of the cable. The pin inner core 2 further provides a cable outer cover connecting position 203 for tightly connecting the cable outer cover 401 with the pin inner core 2, so as to achieve the purposes of preventing falling and leakage. Adapter 2 provides hose connection position 302 for with coolant liquid pipeline 5 and adaptor zonulae occludens, coolant liquid pipeline 5 and adapter 2 cavity intercommunication, form the runner. As shown in fig. 2, the liquid cooling channel is communicated with a pipeline formed by the fan-shaped concave position of the contact pin inner core 2 and the outer wall of the contact pin sheath 1 through a water pipe, and is communicated to a reciprocating channel formed by the inner cavity of the contact pin inner core 2 through the lower end of the contact pin sheath 1, and the channel is communicated with the cavity position of the cable 4 to form a liquid cooling circulation loop, so that the cooling liquid is communicated in the loop to cool the contact pin body.

Example 2:

referring to fig. 1-3 and 8-11, a contact pin with a liquid cooling channel for a charging gun, wherein a contact pin assembly comprises a contact pin sheath 1, a contact pin inner core 2 and an adapter 3. The contact pin sheath 1 is a cylindrical blind hole, the outer wall of the contact pin sheath 1 provides an adapter fixing position 101, namely, the contact position of the contact piece matched with the adapter fixing position is inserted, and the inner wall of the contact pin sheath forms a cavity to provide the accommodating position of the contact pin inner core 2. The front end part of the contact pin inner core 2 is a fan-shaped shaft part with a cavity, and the fan-shaped concave position and the outer wall of the contact pin sheath 1 form a pipeline for containing cooling liquid. The cavity of the needle inserting core 2 is provided with another pipeline which forms a reciprocating communication loop with the pipeline, and the liquid coolant is communicated in the loop to cool the needle inserting assembly.

The pin core 2 further provides a cable connection site 202 for connecting the pin core 2 with the cable 4, and the cable connection site 202 shown in fig. 10 is of a flat structure and is tightly connected with the copper core of the cable 4 by welding, so that current is transmitted from the copper core of the cable to the pin assembly. The cable 4 is composed of a copper core and an outer cover, and a space for containing cooling liquid is arranged between the copper core and the outer cover 401 of the cable. The pin inner core 2 further provides a cable outer cover connecting position 203 for tightly connecting the cable outer cover 401 with the pin inner core 2, so as to achieve the purposes of preventing falling and leakage. Adapter 2 provides hose connection position 302 for with coolant liquid pipeline 5 and adaptor zonulae occludens, coolant liquid pipeline 5 and adapter 2 cavity intercommunication, form the runner. As shown in fig. 2, the liquid cooling channel is communicated with a pipeline formed by the fan-shaped concave position of the contact pin inner core 2 and the outer wall of the contact pin sheath 1 through a water pipe, and is communicated to a reciprocating channel formed by the inner cavity of the contact pin inner core 2 through the lower end of the contact pin sheath 1, and the channel is communicated with the cavity position of the cable 4 to form a liquid cooling circulation loop, so that the cooling liquid is communicated in the loop to cool the contact pin body.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a rifle charges with contact pin of taking liquid cooling passageway which characterized in that: comprises a pin sheath (1), a pin inner core (2) and a adapter (3); the pin sheath (1) is tightly connected with the adapter (3), and the front end of the pin inner core (2) is inserted into the pin sheath (1); still include cable (4) and coolant liquid pipeline (5), cable (4) with contact pin inner core (2) rear end is connected, coolant liquid pipeline (5) with adapter (3) zonulae occludens.

2. The contact pin with the liquid cooling channel for the charging gun according to claim 1, wherein: the pin sheath (1) is in a cylindrical blind hole shape, and the outer wall of the pin sheath is provided with an adapter fixing position (101); adapter (3) include adapter terminal surface (301), and inside has the cavity, adapter terminal surface (301) with the fixed position of adapter (101) fastening fit.

3. The contact pin with the liquid cooling channel for the charging gun according to claim 2, characterized in that: adapter (3) still includes hose connection position (302), adapter (3) with coolant liquid pipeline (5) pass through hose connection position (302) zonulae occludens.

4. The contact pin with the liquid cooling channel for the charging gun according to claim 2, characterized in that: the cavity inside the adapter (3) is communicated with the pin jacket (1) and the cooling liquid pipeline (5).

5. The contact pin with the liquid cooling channel for the charging gun according to claim 1, wherein: the pin inserting device is characterized by further comprising a pin inserting inner core fixing position (102) and a pin inserting inner core end face (201), wherein the pin inserting inner core fixing position (102) is arranged inside the pin inserting sheath (1), and the pin inserting inner core end face (201) is arranged at the front end of the pin inserting inner core (2); the end surface (201) of the pin inner core is tightly matched with the pin inner core fixing position (102).

6. The contact pin with the liquid cooling channel for the charging gun according to claim 1, wherein: the rear end of the pin inner core (2) further comprises a cable connecting position (202) and a cable outer cover connecting position (203), and the cable (4) further comprises a cable outer cover (401); the cable connecting position (202) is connected with the inside of the cable (4), and the cable outer cover connecting position (203) is connected with the cable outer cover (401).