CN113212202A - Liquid cooling structure of heavy current terminal - Google Patents
Liquid cooling structure of heavy current terminal Download PDFInfo
- Publication number
- CN113212202A CN113212202A CN202110483335.3A CN202110483335A CN113212202A CN 113212202 A CN113212202 A CN 113212202A CN 202110483335 A CN202110483335 A CN 202110483335A CN 113212202 A CN113212202 A CN 113212202A
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- Prior art keywords
- heat conduction
- charging
- insulating
- terminal
- liquid
- Prior art date
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- Pending
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 38
- 238000001816 cooling Methods 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims description 8
- 239000007769 metal material Substances 0.000 claims description 4
- 238000009413 insulation Methods 0.000 abstract description 5
- 239000000565 sealant Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 239000000110 cooling liquid Substances 0.000 description 6
- 238000003466 welding Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/30—Constructional details of charging stations
- B60L53/302—Cooling of charging equipment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
- B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention discloses a liquid cooling structure of a large-current terminal, and belongs to the technical field of electric automobile charging. The device comprises two DC charging terminals and an insulating heat-conducting bracket, wherein the insulating heat-conducting bracket is arranged between the two DC charging terminals; the heat conduction box is arranged on the insulating heat conduction bracket between the two DC charging terminals, and a liquid flow channel is arranged in the heat conduction box; the water inlet pipe is arranged on the heat conduction box and is connected with one end of the liquid flow channel; and the water outlet pipe is arranged on the heat conduction box and is connected with the other end of the liquid flow channel. The liquid cooling device is designed for the charging terminal, so that the charging current of the terminal can be greatly improved to improve the charging power under the working condition of the same terminal in the prior art, and the quick charging of a charging system is realized. All parts are encapsulated into a whole by high heat conduction and high insulation pouring sealant, so that the heat transfer and the safety are greatly improved.
Description
Technical Field
The invention relates to the technical field of electric automobile charging, in particular to a liquid cooling structure of a large-current terminal.
Background
With the continuous development of the new energy electric automobile industry, the endurance mileage of the electric automobile is improved, the capacity of a power battery is increased, and the problem of charging speed is solved by increasing the charging power and realizing quick charging. However, the charging power of the current voltage platform of the electric vehicle cannot be increased by increasing the charging voltage due to various factors, and the charging power can only be increased by increasing the charging current.
When the charging current is greatly increased to hundreds of amperes, the terminal is required to bear larger current, and in the large-current charging process, the charging terminal generates a large amount of heat according to the joule law, so that the temperature of the whole connecting system is increased along with the continuous accumulation of the heat of the charging terminal, and the charging process is very dangerous and even cannot be continuously charged.
Disclosure of Invention
The invention provides a liquid cooling structure of a large-current terminal, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a liquid cooling structure of heavy current terminal, includes two DC charging terminals, still includes: an insulating thermally conductive bracket disposed between two DC charging terminals; the heat conduction box is arranged on the insulating heat conduction bracket between the two DC charging terminals, and a liquid flow channel is arranged in the heat conduction box; the water inlet pipe is arranged on the heat conduction box and is connected with one end of the liquid flow channel; and the water outlet pipe is arranged on the heat conduction box and is connected with the other end of the liquid flow channel.
Furthermore, the insulating heat-conducting support comprises an insulating sheet and an insulating plate, each DC charging terminal is provided with the insulating sheet, and the two insulating sheets are arranged oppositely; the insulating plate is arranged between the two insulating sheets.
Further, the heat conduction box is made of a heat conduction material.
Further, the heat conducting box is made of a metal material.
Further, the liquid flow channel is in an integral cavity type or spiral type or continuous U type.
Compared with the prior art, the invention has the beneficial effects that:
1. the liquid cooling device is designed for the charging terminal, so that the charging current of the terminal can be greatly improved to improve the charging power under the working condition of the same terminal in the prior art, and the quick charging of a charging system is realized.
2. The current-carrying capacity of the electric wire with the same sectional area is improved by about 3-5 times. In short, the embodiment of the invention can greatly reduce the heat generation during charging, thereby greatly improving the charging current of the charging terminal.
Drawings
Fig. 1 is a schematic structural view of a liquid cooling structure of a large current terminal according to the present invention.
Fig. 2 is an exploded view of the liquid cooling structure of the high current terminal of the present invention.
Fig. 3 is a schematic structural diagram of a cavity-type liquid flow channel of a heat conduction box of a liquid cooling structure of a large-current terminal in this embodiment.
The labels in the figure are: the device comprises a 1-DC charging terminal, a 2-heat conduction box, a 3-insulation sheet, a 4-insulation plate, a 5-water inlet pipe, a 6-water outlet pipe and a 7-liquid flow channel.
Detailed Description
As shown in fig. 1 to 3, a liquid cooling structure of a large current terminal includes two DC charging terminals 1, and an insulating heat conducting bracket disposed between the two DC charging terminals 1; the heat conduction box 2 is arranged on the insulating heat conduction bracket between the two DC charging terminals 1, and a liquid flow channel 7 is arranged in the heat conduction box 2; the water inlet pipe 5 is arranged on the heat conduction box 2, and the water inlet pipe 5 is connected with one end of the liquid flow channel 7; and the water outlet pipe 6 is arranged on the heat conduction box 2, and the water outlet pipe 6 is connected with the other end of the liquid flow channel 7.
The cooling liquid flows through the liquid circulating pump, flows into the heat conduction box 2 from the water inlet pipe 5 through the cable guide pipe in the cable, then reaches the water outlet pipe 6 through the liquid flow channel 7 designed in the heat conduction box 2 to enter the other guide pipe of the cable, and then flows back to the cooling liquid storage device.
The process is repeated, the DC charging terminal 1 is transmitted to the insulating heat conduction support through circulation of cooling liquid and then transmitted to the heat conduction box 2, and the heat is taken away by the cooling liquid in the heat conduction box 2, so that the DC charging terminal 1 is cooled, the DC charging terminal 1 can be used for large-current charging, high temperature cannot be generated, and the requirement of high-power, rapid and safe charging of a system is met.
Generally, the connection between the current-carrying wire and the DC charging terminal 1 is welded to ensure the reliability of the connection, and the connection resistance is lower than that of the conventional crimping method, so that the connection heating value of the wire and the terminal is reduced according to the joule law, and the design of the DC charging terminal 1 and the connection process of the DC charging terminal 1 and the wire are simpler and better to operate, and are easier to implement in the whole assembly process.
Between DC charging terminal 1 and insulating piece 3, through the embedment in order to get rid of between air between insulating piece 3 and the heat conduction case 2, high heat conduction high insulating glue material is chooseed for use to the embedment material, makes thermal transmission and insulating nature obtain better assurance, can also play dustproof, waterproof effect in the course of the work.
The heat conducting box 2 is generally made of metal materials, and different materials can be selected according to requirements.
The heat conducting box 2 is connected with the water inlet pipe 5 and the water outlet pipe 6 by adopting a thread or welding mode. Different materials can be selected according to the requirements of the process and the like so as to ensure the reliability and stability of the welding process and simultaneously make the welding process easier to realize.
The adaptive liquid flow channel 7 is designed in the heat conduction box 2 according to the requirements of water flow speed and flow rate, and the liquid flow channel 7 can be designed into any shape according to the requirements so as to ensure that the liquid flows smoothly and takes away enough heat.
In the present embodiment, the insulating and heat conducting bracket includes an insulating sheet 3 and an insulating sheet 4, the insulating sheet 3 is disposed on each DC charging terminal 1, and the two insulating sheets 3 are disposed oppositely; the insulating plate 4 is disposed between the two insulating sheets 3. Through setting up like this, with heat conduction case 2 and two isolated divisions of DC charging terminal 1, accomplish insulating processing, improve the security of using.
In the present embodiment, the heat conducting box 2 is made of a heat conducting material. And can be made of metal materials.
For the liquid flow passage 7 in the heat conduction box 2, the liquid flow passage 7 is in an integral cavity type or a spiral type or a continuous U type. The arrangement of the liquid flow channel 7 has a great effect on the heat conduction. The liquid flow channels 7 in the above forms can have a large volume, so that heat can be conveniently and timely transferred out through cooling liquid.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (5)
1. The utility model provides a liquid cooling structure of heavy current terminal, includes two DC charging terminals (1), its characterized in that: further comprising:
an insulating thermally conductive support arranged between two DC charging terminals (1);
the heat conduction box (2) is arranged on the insulating heat conduction support between the two DC charging terminals (1), and a liquid flow channel (7) is arranged in the heat conduction box (2);
the water inlet pipe (5) is arranged on the heat conduction box (2), and the water inlet pipe (5) is connected with one end of the liquid flow channel (7);
and the water outlet pipe (6) is arranged on the heat conduction box (2), and the water outlet pipe (6) is connected with the other end of the liquid flow channel (7).
2. A liquid-cooled structure for a high current terminal as claimed in claim 1, wherein: the insulating heat conduction support comprises an insulating sheet (3) and an insulating plate (4), wherein the insulating sheet (3) is arranged on each DC charging terminal (1), and the two insulating sheets (3) are arranged oppositely; the insulating plate (4) is arranged between the two insulating sheets (3).
3. A liquid-cooled structure for a high current terminal as claimed in claim 1, wherein: the heat conduction box (2) is made of heat conduction materials.
4. A liquid-cooled structure for a high current terminal as claimed in claim 1, wherein: the heat conduction box (2) is made of metal materials.
5. A liquid-cooled structure for a high current terminal as claimed in claim 1, wherein: the liquid flow channel (7) is in an integral cavity type or spiral type or continuous U type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110483335.3A CN113212202A (en) | 2021-04-30 | 2021-04-30 | Liquid cooling structure of heavy current terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110483335.3A CN113212202A (en) | 2021-04-30 | 2021-04-30 | Liquid cooling structure of heavy current terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113212202A true CN113212202A (en) | 2021-08-06 |
Family
ID=77090580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110483335.3A Pending CN113212202A (en) | 2021-04-30 | 2021-04-30 | Liquid cooling structure of heavy current terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113212202A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113708123A (en) * | 2021-08-30 | 2021-11-26 | 菲尼克斯(南京)新能源汽车技术有限公司 | Electric connecting device with cooling function |
| CN114161972A (en) * | 2021-12-29 | 2022-03-11 | 四川永贵科技有限公司 | Terminal liquid cooling structure of heavy current connector |
| CN114899634A (en) * | 2022-07-13 | 2022-08-12 | 深圳永贵技术有限公司 | Terminal liquid cooling structure of high-power connector |
| DE102022001799A1 (en) | 2022-05-23 | 2023-11-23 | Mercedes-Benz Group AG | Electrical power contact system and charging socket |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106104949A (en) * | 2014-02-05 | 2016-11-09 | 特斯拉汽车公司 | The cooling of charge cable |
| CN107082030A (en) * | 2017-05-24 | 2017-08-22 | 深圳市沃尔核材股份有限公司 | Charging equipment cooling system |
| CN109788713A (en) * | 2019-01-17 | 2019-05-21 | 深圳市宝道智能科技有限公司 | A kind of cooling charging unit of fluid |
| CN113328288A (en) * | 2021-07-14 | 2021-08-31 | 浙江吉利控股集团有限公司 | Charging connector, electric vehicle and charging pile |
-
2021
- 2021-04-30 CN CN202110483335.3A patent/CN113212202A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106104949A (en) * | 2014-02-05 | 2016-11-09 | 特斯拉汽车公司 | The cooling of charge cable |
| CN107082030A (en) * | 2017-05-24 | 2017-08-22 | 深圳市沃尔核材股份有限公司 | Charging equipment cooling system |
| CN109788713A (en) * | 2019-01-17 | 2019-05-21 | 深圳市宝道智能科技有限公司 | A kind of cooling charging unit of fluid |
| CN113328288A (en) * | 2021-07-14 | 2021-08-31 | 浙江吉利控股集团有限公司 | Charging connector, electric vehicle and charging pile |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113708123A (en) * | 2021-08-30 | 2021-11-26 | 菲尼克斯(南京)新能源汽车技术有限公司 | Electric connecting device with cooling function |
| CN114161972A (en) * | 2021-12-29 | 2022-03-11 | 四川永贵科技有限公司 | Terminal liquid cooling structure of heavy current connector |
| DE102022001799A1 (en) | 2022-05-23 | 2023-11-23 | Mercedes-Benz Group AG | Electrical power contact system and charging socket |
| CN114899634A (en) * | 2022-07-13 | 2022-08-12 | 深圳永贵技术有限公司 | Terminal liquid cooling structure of high-power connector |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210806 |