CN107317145B - Contact pin and charging gun - Google Patents
Contact pin and charging gun Download PDFInfo
- Publication number
- CN107317145B CN107317145B CN201710694579.XA CN201710694579A CN107317145B CN 107317145 B CN107317145 B CN 107317145B CN 201710694579 A CN201710694579 A CN 201710694579A CN 107317145 B CN107317145 B CN 107317145B
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- CN
- China
- Prior art keywords
- cooling liquid
- connector
- plug
- interface
- connecting piece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/04—Pins or blades for co-operation with sockets
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20272—Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Connector Housings Or Holding Contact Members (AREA)
Abstract
The invention discloses a contact pin, which comprises a plug connector and a connecting piece. The cooling liquid flow channel is arranged at one end of the plug connector, which is away from the plug connection direction, and the plug connector is provided with the plug connector cooling liquid interface. The connecting piece is provided with a connecting piece cooling liquid interface, a crimping hole and a connecting piece cooling liquid pipeline. The connector is connected with the connector, the connector cooling liquid pipeline is arranged in the connector cooling liquid channel, and a clearance channel is formed between the connector cooling liquid pipeline and the connector cooling liquid channel wall. The plug-in piece cooling liquid interface, the clearance runner, the connecting piece cooling liquid pipeline and the connecting piece cooling liquid interface are communicated to form a runner for cooling liquid circulation. According to the invention, the heat emitted by the contact pin is taken away by the circulating cooling liquid, so that the temperature of the contact pin can be automatically reduced, the current carrying capacity of the charging gun can be further improved, and the stability and reliability of high-power charging are ensured.
Description
Technical Field
The invention relates to the technical field of connectors, in particular to a contact pin and a charging gun using the contact pin.
Background
When the charging gun is used for carrying out high-power charging on the electric automobile, the charging gun can generate heat, and potential safety hazards exist. The reason for heating of the charging gun is that the contact pins and the corresponding terminals which are mutually inserted generate heat during charging, and potential safety hazards exist when the heat is accumulated to a certain program, so that the service life of the charging gun is shortened, and the development of the high-power charging gun is limited in fact.
Therefore, there is an urgent need for a contact pin and a charging gun that can achieve the self cooling and heat dissipation functions.
Disclosure of Invention
The invention mainly aims to provide a contact pin capable of realizing self cooling and heat dissipation, so that a charging gun applying the contact pin can charge with high power.
In order to solve the technical problems, the pin provided by the invention comprises a plug connector and a connecting piece. The end face of the plug-in component, which is away from the plug-in direction, is inwards provided with a cooling liquid flow channel, and a plug-in inner interface is formed on the end face of the plug-in component, and the plug-in component is provided with a plug-in component cooling liquid interface communicated with the cooling liquid flow channel. The connecting piece is provided with a base part, the base part is provided with a connecting piece cooling liquid interface, one end of the base part is internally provided with a crimping hole, and the crimping hole is used for accommodating a cable connected with the connecting piece. The other end of the base is provided with a connecting piece cooling liquid pipeline communicated with the connecting piece cooling liquid interface, and a connecting inner interface is formed on the end face of the base.
The connector is connected with the connector, wherein the connector cooling liquid pipeline is arranged in the connector cooling liquid channel, and a clearance channel is formed between the connector cooling liquid pipeline and the connector cooling liquid channel wall.
The plug connector cooling liquid interface, the clearance runner, the connecting piece cooling liquid pipeline and the connecting piece cooling liquid interface are communicated to form a cooling liquid circulation runner, and the plug connector inner interface is electrically connected with the connecting inner interface and is sealed and insulated with the cooling liquid circulation runner.
Preferably, the flow channel walls of the flow channel through which the cooling liquid flows are each formed with insulation.
Preferably, a fixing groove is formed in one end, deviating from the plugging direction, of the plug connector inwards, the fixing groove is communicated with the cooling liquid flow channel, the width of the fixing groove is larger than that of the cooling liquid flow channel, and the outer surface of one end, provided with the cooling liquid flow channel of the connecting piece, of the base part of the connecting piece is narrowed so as to be fixed in the fixing groove.
Preferably, the inner plug interface of the plug connector is a plane, and the inner connection interface of the connecting piece is a plane.
Preferably, the contact connection of the plug internal interface of the plug connector and the connection internal interface of the connecting piece is welding, threaded connection, sealing ring sealing or interference fit of the two.
Preferably, the surface of the plug connector, on which the plug connector cooling liquid interface is arranged, is a plane.
Preferably, the surface of the base part provided with the connecting piece cooling liquid interface is a plane.
Preferably, insulating oil is circulated in the flow passage through which the cooling liquid circulates.
Preferably, the cooling liquid is circulated in the flow channel through which the cooling liquid circulates, and the inner wall of the flow channel through which the cooling liquid circulates is insulated.
The invention also provides a charging gun which is provided with the contact pin.
The contact pin comprises the plug connector and the connecting piece, wherein the plug connector cooling liquid interface, the clearance runner, the connecting piece cooling liquid pipe and the connecting piece cooling liquid interface are communicated to form a runner through which cooling liquid circulates, and the circulating cooling liquid takes away heat emitted by the contact pin, so that the temperature of the contact pin can be automatically reduced, the current carrying capacity of a charging gun can be improved, and the stability and reliability of high-power charging are ensured.
Drawings
FIG. 1 is a schematic diagram of a plug connector of a pin according to the present invention;
FIG. 2 is a schematic longitudinal cross-sectional view of the plug of FIG. 1;
FIG. 3 is a schematic view of the structure of the connector of the pin of the present invention;
FIG. 4 is a schematic view of a longitudinal cross-sectional structure of the connector shown in FIG. 1;
FIG. 5 is a schematic view of a three-dimensional structure of the assembled pin of the present invention;
FIG. 6 is a schematic view of a longitudinal cross-sectional structure of the pin shown in FIG. 5;
fig. 7 is a schematic view of another angular longitudinal cross-section of the pin shown in fig. 5.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 and 2, the pin of the present invention includes a plug 10 and a connector 20.
The plug connector 10 is approximately cylindrical, one end of the plug connector 10, which is away from the plug connection direction, is internally provided with a cooling liquid flow channel 11, a plug connection inner interface 12 is formed on the end surface, and the plug connector 10 is provided with a plug connector cooling liquid interface 13 communicated with the cooling liquid flow channel 11.
Referring to fig. 3 and 4, the connector 20 has a base 21, a connector coolant port 22 is provided on the base 21, and a crimp hole 23 is provided at one end of the base 21, and the crimp hole 23 is configured to receive a cable (not shown) connected thereto. The other end of the base 21 is provided with a connector coolant pipe 24 communicating with the connector coolant port 22 and a connection inner port 25 is formed at the base end face.
Referring to fig. 5, 6 and 7, when the pin is assembled, the connector 10 is connected to the connector 20, wherein the connector coolant pipe 24 is disposed in the connector coolant channel 11, and a gap flow channel t is formed between the connector coolant pipe 24 and the connector coolant channel wall.
The plug-in piece cooling liquid interface 13, the clearance runner t, the connecting piece cooling liquid pipeline 24 and the connecting piece cooling liquid interface 22 are communicated to form a cooling liquid circulation runner, and the plug-in inner interface 12 and the connecting inner interface 25 are electrically connected and are sealed and insulated with the cooling liquid circulation runner.
As a further improvement of the present embodiment, the flow channel walls of the flow channel through which the cooling liquid flows are each formed with insulation,
As a further improvement of this embodiment, the end of the plug 10 facing away from the plug direction is provided with a fixing groove 14 inwards, the fixing groove 14 is communicated with the cooling liquid channel 11, the width of the fixing groove 14 is larger than that of the cooling liquid channel 11, and the outer surface of one end of the base 21 of the connecting piece 20, which is provided with a connecting piece cooling liquid pipeline, is narrowed so as to be fixed in the fixing groove 14.
As a further development of the exemplary embodiment, the plug inner interface 12 of the plug connector 10 is planar and the connection inner interface 25 of the connection element 20 is planar.
As a further improvement of the present embodiment, the contact connection between the plug inner interface 12 of the plug connector 10 and the connection inner interface 25 of the connector 20 is welding, threaded connection, sealing ring sealing or interference fit of the two.
As a further improvement of the present embodiment, the surface of the plug connector 10 provided with the plug connector cooling liquid interface 13 is a plane.
As a further improvement of the present embodiment, the surface of the base 21 provided with the connector coolant port 22 is a plane.
As a further improvement of the present embodiment, insulating oil is circulated in the flow passage through which the cooling liquid circulates.
As a further improvement of the embodiment, the liquid cooling water is circulated in the flow channel through which the cooling liquid circulates, and the inner wall of the flow channel through which the cooling liquid circulates is insulated.
The invention also provides a charging gun which is provided with the contact pin. Because the charging gun adopts all the technical schemes of all the embodiments, the charging gun has at least all the beneficial effects brought by the technical schemes of the corresponding embodiments, and the charging gun is not described in detail herein.
The contact pin comprises the plug connector 10 and the connecting piece 20, wherein the plug connector cooling liquid interface 13, the clearance runner t, the connecting piece cooling liquid pipeline 24 and the connecting piece cooling liquid interface 22 are communicated to form a runner through which cooling liquid circulates, and the heat emitted by the contact pin is taken away by the circulating cooling liquid, so that the temperature of the contact pin can be automatically reduced, the current carrying capacity of a charging gun can be further improved, and the stability and the reliability of high-power charging are ensured.
The foregoing description of the preferred embodiments of the present invention should not be construed as limiting the scope of the invention, but rather should be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the following description and drawings or any application directly or indirectly to other relevant art(s).
Claims (9)
1. A pin, the pin comprising:
The plug connector is provided with a cooling liquid channel inwards at one end of the plug connector, which is away from the plug direction, and a plug inner interface is formed on the end surface of the plug connector, and a plug connector cooling liquid interface communicated with the cooling liquid channel is formed on the plug connector;
The connecting piece is provided with a base part, a connecting piece cooling liquid interface is arranged on the base part, one end of the base part is internally provided with a crimping hole which is used for accommodating a cable connected with the connecting piece, the other end of the base part is provided with a connecting piece cooling liquid pipeline communicated with the connecting piece cooling liquid interface, and a connecting inner interface is formed on the end face of the base part;
The connector is connected with the connector, wherein the connector cooling liquid pipeline is arranged in the connector cooling liquid flow channel, a clearance flow channel is formed between the connector cooling liquid pipeline and the connector cooling liquid flow channel wall, the connector cooling liquid interface, the clearance flow channel, the connector cooling liquid pipeline and the connector cooling liquid interface are communicated to form a cooling liquid flow channel, and the connector inner interface is electrically connected with the connector inner interface and is sealed and insulated with the cooling liquid flow channel; the plug connector cooling liquid interface is arranged adjacent to the plug inner interface.
2. The pin of claim 1, wherein a fixing groove is formed in one end of the plug-in component, which is away from the plug-in direction, and is communicated with the cooling liquid channel, the width of the fixing groove is larger than that of the cooling liquid channel, and the outer surface of one end of the base part of the connecting component, which is provided with the cooling liquid channel of the connecting component, is narrowed so as to be fixed in the fixing groove.
3. The pin of claim 1, wherein the internal mating interface of the connector is planar and the internal mating interface of the connector is planar.
4. The pin of claim 1, wherein the contact connection of the plug internal interface of the plug and the connection internal interface of the connector is a weld, a threaded connection, a sealing ring seal, or an interference fit of both.
5. The pin of claim 1, wherein the face of the plug having the plug coolant port formed thereon is planar.
6. The pin of claim 1, wherein the face of the base on which the connector coolant port is provided is planar.
7. The pin of claim 1, wherein insulating oil is circulated in the flow passage through which the cooling liquid circulates.
8. The pin of claim 1, wherein the cooling fluid is circulated in a flow passage through which the cooling fluid circulates, and an inner wall of the flow passage through which the cooling fluid circulates is insulated.
9. A charging gun provided with a pin according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710694579.XA CN107317145B (en) | 2017-08-15 | 2017-08-15 | Contact pin and charging gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710694579.XA CN107317145B (en) | 2017-08-15 | 2017-08-15 | Contact pin and charging gun |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107317145A CN107317145A (en) | 2017-11-03 |
| CN107317145B true CN107317145B (en) | 2024-07-19 |
Family
ID=60177235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710694579.XA Active CN107317145B (en) | 2017-08-15 | 2017-08-15 | Contact pin and charging gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107317145B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108493725B (en) * | 2018-03-08 | 2019-07-23 | 浙江零跑科技有限公司 | A kind of arrangements of electric connection for the high-power charging of electric car |
| CN110077258A (en) * | 2019-05-31 | 2019-08-02 | 南京康尼机电股份有限公司 | A kind of chipware of the charging gun with cooling passage, plug and charging gun |
| CN110086047A (en) * | 2019-05-31 | 2019-08-02 | 南京康尼机电股份有限公司 | A kind of charging gun chipware, charging gun plug and the charging gun of energy monitoring temperature |
| DE102022120987A1 (en) * | 2022-08-19 | 2024-02-22 | Lisa Dräxlmaier GmbH | HEAT SINK FOR A CONTACTING ELEMENT, CONTACTING ELEMENT FOR A CONNECTION DEVICE AND CONNECTION DEVICE |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10106867A (en) * | 1996-08-07 | 1998-04-24 | Sumitomo Wiring Syst Ltd | Electric vehicle charging system |
| WO2012051510A2 (en) * | 2010-10-14 | 2012-04-19 | Gregory Thomas Mark | Actively cooled electrical connection |
| DE102015100347A1 (en) * | 2015-01-12 | 2016-07-14 | Phoenix Contact E-Mobility Gmbh | Electrical connection body for a charging plug and / or a charging socket, charging plug and charging station for delivering electrical energy to a receiver of electrical energy |
| CN106849228A (en) * | 2017-01-13 | 2017-06-13 | 深圳市沃尔核材股份有限公司 | Charging equipment cooling system |
-
2017
- 2017-08-15 CN CN201710694579.XA patent/CN107317145B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107317145A (en) | 2017-11-03 |
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Effective date of registration: 20210615 Address after: 518000 6th floor, phase III factory building, WUR Industrial Park, Lanjing North Road, Pingshan District, Shenzhen City, Guangdong Province Applicant after: SHENZHEN WOER NEW ENERGY ELECTRICAL TECHNOLOGY Co.,Ltd. Applicant after: Shenzhen Woer Heat-shrinkable Material Co.,Ltd. Applicant after: CHANGZHOU WOER HEAT-SHRINKABLE MATERIAL Co.,Ltd. Address before: 518118 6th floor, phase III factory building, WUR Industrial Park, Lanjing North Road, Pingshan District, Shenzhen City, Guangdong Province Applicant before: SHENZHEN WOER NEW ENERGY ELECTRICAL TECHNOLOGY Co.,Ltd. Applicant before: Shenzhen Woer Heat-shrinkable Material Co.,Ltd. Applicant before: SHENZHEN WOER SPECIAL CABLE Co.,Ltd. Applicant before: CHANGZHOU WOER HEAT-SHRINKABLE MATERIAL Co.,Ltd. Applicant before: LTK ELECTRIC WIRE (HUIZHOU) Ltd. Applicant before: HUIZHOU LTK ELECTRONIC CABLE Co.,Ltd. |
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Effective date of registration: 20231120 Address after: 518000 workshop 601 of wal nuclear material industrial plant (phase III), No. 53 Qingsong West Road, Zhukeng community, Longtian street, Pingshan District, Shenzhen, Guangdong Province Applicant after: SHENZHEN WOER NEW ENERGY ELECTRICAL TECHNOLOGY Co.,Ltd. Address before: 518000 6th floor, phase III factory building, WUR Industrial Park, Lanjing North Road, Pingshan District, Shenzhen City, Guangdong Province Applicant before: SHENZHEN WOER NEW ENERGY ELECTRICAL TECHNOLOGY Co.,Ltd. Applicant before: Shenzhen Woer Heat-shrinkable Material Co.,Ltd. Applicant before: CHANGZHOU WOER HEAT-SHRINKABLE MATERIAL Co.,Ltd. |
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