CN113147454A - Liquid cooling structure of full-coverage type terminal - Google Patents

Liquid cooling structure of full-coverage type terminal Download PDF

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Publication number
CN113147454A
CN113147454A CN202110483330.0A CN202110483330A CN113147454A CN 113147454 A CN113147454 A CN 113147454A CN 202110483330 A CN202110483330 A CN 202110483330A CN 113147454 A CN113147454 A CN 113147454A
Authority
CN
China
Prior art keywords
terminal
charging
heat conduction
conduction box
fluid channel
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.)
Pending
Application number
CN202110483330.0A
Other languages
Chinese (zh)
Inventor
田力
李运明
郭亮
杨尚芳
毛彬
向晓东
付刚
喻通
李刚
丁浩
蒋友华
赖登辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sichuan Yonggui Science and Technology Co Ltd
Original Assignee
Sichuan Yonggui Science and Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sichuan Yonggui Science and Technology Co Ltd filed Critical Sichuan Yonggui Science and Technology Co Ltd
Priority to CN202110483330.0A priority Critical patent/CN113147454A/en
Publication of CN113147454A publication Critical patent/CN113147454A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • 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

Abstract

The invention discloses a liquid cooling structure of a full-coverage type terminal, and belongs to the technical field of electric automobile charging. Including two DC charging terminals, still include: the insulation bushings are sleeved on the two DC charging terminals respectively; the terminal avoiding cavity is formed in the heat conduction box, the heat conduction box is arranged on the insulating bushes of the two DC charging terminals through the terminal avoiding cavity, and a fluid 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 fluid channel; and the water outlet pipe is arranged on the heat conduction box and is connected with the other end of the fluid 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.

Description

Liquid cooling structure of full-coverage type terminal
Technical Field
The invention relates to the technical field of electric automobile charging, in particular to a liquid cooling structure of a full-coverage type 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 full-coverage 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 full coverage type terminal, includes two DC charging terminals, still includes: the insulation bushings are sleeved on the two DC charging terminals respectively; the terminal avoiding cavity is formed in the heat conduction box, the heat conduction box is arranged on the insulating bushes of the two DC charging terminals through the terminal avoiding cavity, and a fluid 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 fluid channel; and the water outlet pipe is arranged on the heat conduction box and is connected with the other end of the fluid channel.
Furthermore, be equipped with first ka tai on the DC charging terminal, be equipped with the second ka tai on the insulating bush, through the cooperation of second ka tai and first ka tai for insulating bush locates on the DC charging terminal, and the tip of DC charging terminal runs through and extends insulating bush and set up in the terminal dodges the intracavity.
Furthermore, a third clamping table is arranged on the terminal avoiding cavity, and the heat conducting box is arranged on the insulating bush through the cooperation of the third clamping table and the second clamping table.
Further, the insulation bushing covers the first clamping table of the DC charging terminal in a circumferential direction by the second clamping table.
Furthermore, the terminal avoiding cavity coats the circumferential direction of the second clamping table of the insulating bush through the third clamping table.
Further, the fluid channel wraps the terminal avoiding cavity in a surrounding mode.
Furthermore, a partition plate is arranged in the fluid channel between the water inlet pipe and the water outlet pipe.
Further, the heat conducting box is made of a heat conducting metal material, plastic material or ceramic material.
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 view of a liquid cooling structure of a full coverage type terminal of the present invention.
Fig. 2 is a schematic structural view of a liquid cooling structure of the fully covered terminal of the present invention.
Fig. 3 is a schematic sectional view of a liquid cooling structure of the full coverage type terminal in this embodiment.
The labels in the figure are: the device comprises a heat conduction box 1, an insulation bushing 2, a DC charging terminal 3, a water inlet pipe 4, a water outlet pipe 5, a terminal avoiding cavity 6, a fluid channel 7 and a partition plate 8.
Detailed Description
As shown in fig. 1 to 3, a liquid cooling structure of a full-coverage type terminal includes two DC charging terminals 3 to carry a large current for charging; the insulating bushings 2 are respectively sleeved on the two DC charging terminals 3 and used for realizing insulation and heat conduction between the DC charging terminals 3 and the heat conduction box 1; the terminal shielding device comprises a heat conduction box 1, wherein a terminal shielding cavity 6 is formed in the heat conduction box 1, the heat conduction box 1 is arranged on an insulating bush 2 of two DC charging terminals 3 through the terminal shielding cavity 6, and a fluid channel 7 is formed in the heat conduction box 1; the water inlet pipe 4 is arranged on the heat conduction box 1, and the water inlet pipe 4 is connected with one end of the fluid channel 7; and the water outlet pipe 5 is arranged on the heat conduction box 1, and the water outlet pipe 5 is connected with the other end of the fluid channel 7.
The cooling liquid flows through the liquid circulating pump, flows into the heat conduction box 1 from the water inlet pipe 4 through the cable conduit in the cable, then flows into the water outlet pipe 5 through the fluid channel 7 designed in the heat conduction box 1 to enter the other conduit of the cable, and then flows back to the cooling liquid storage device.
Because the fluid passage 7 wraps the terminal avoiding cavity 6 in a surrounding manner, the process is repeated, the DC charging terminal 3 is transferred to the inner wall of the terminal avoiding cavity 6 of the heat conduction box 1 through the circulation of cooling liquid, and the cooling liquid in the heat conduction box 1 takes away the heat, so that the DC charging terminal 3 is cooled, the DC charging terminal 3 can be used for large-current charging, high temperature cannot be generated, and the requirement of high-power, quick and safe charging of a system is met.
Generally, the connection between the current-carrying wire and the DC charging terminal 3 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 3 and the connection process of the DC charging terminal 3 and the wire are simpler and better to operate, and are easier to implement in the whole assembly process.
The material of heat conduction case 1 can select for use the metal material of high heat conductivity such as copper or iron etc. according to the concrete requirement, plastic material or ceramic material etc. to guarantee thermal effective transmission, heat conduction case 1 design adaptation parcel is at DC charging terminal 3 surface, between design certain clearance as required, it is insulating through embedment insulating heat-conducting glue, liquid runner also forms the parcel around DC charging terminal 3 simultaneously in heat conduction case 1, and take out DC charging terminal 3's heat through the flow of liquid in the liquid runner.
An insulating bush 2 is adopted between the heat conduction box 1 and the DC charging terminal 3 to ensure the requirements of electric performance such as insulation between the heat conduction box 1 and the DC charging terminal 3.
The heat conduction box 1 is connected with the water inlet pipe 4 and the water outlet pipe 5 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.
In this embodiment, be equipped with first ka tai on the DC charging terminal 3, be equipped with the second ka tai on the insulating bush 2, through the cooperation of second ka tai and first ka tai for insulating bush 2 locates on the DC charging terminal 3, and the tip of DC charging terminal 3 runs through and extends insulating bush 2 and set up in the terminal dodges the chamber 6. And a third clamping table is arranged on the terminal avoiding cavity 6, and the heat conduction box 1 is arranged on the insulating bush 2 through the cooperation of the third clamping table and the second clamping table. Through the cooperation of the clamping table type, the installation among all the parts is more stable. The mounting between the DC charging terminal 3 and the current carrying wire may be provided within the terminal relief cavity 6.
In the present embodiment, the insulating bush 2 covers the first holder of the DC charging terminal 3 in the circumferential direction by the second holder. The terminal avoiding cavity 6 coats the circumferential direction of the second clamping table of the insulating bush 2 through the third clamping table. Not only can play the fixed effect that can also play the heat conduction.
In this embodiment, a partition plate 8 is provided in the fluid passage 7 between the inlet pipe 4 and the outlet pipe 5. Therefore, water entering the fluid channel 7 from the water inlet pipe 4 can flow out of the water outlet pipe 5 only through the fluid channel 7, the contact area of the fluid and the fluid channel 7 is greatly increased, and the heat dissipation effect is improved.
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 (8)

1. The utility model provides a liquid cooling structure of full coverage type terminal, includes two DC charging terminals (3), its characterized in that: further comprising:
the insulation bushings (2), the insulation bushings (2) are respectively sleeved on the two DC charging terminals (3);
the terminal shielding device comprises a heat conduction box (1), wherein a terminal shielding cavity (6) is formed in the heat conduction box (1), the heat conduction box (1) is arranged on an insulating bush (2) of two DC charging terminals (3) through the terminal shielding cavity (6), and a fluid channel (7) is arranged in the heat conduction box (1);
the water inlet pipe (4) is arranged on the heat conduction box (1), and the water inlet pipe (4) is connected with one end of the fluid channel (7);
and the water outlet pipe (5) is arranged on the heat conduction box (1), and the water outlet pipe (5) is connected with the other end of the fluid channel (7).
2. The liquid cooling structure of the fully covered terminal as claimed in claim 1, wherein: be equipped with first card platform on DC charging terminal (3), be equipped with the second card platform on insulating bush (2), through the cooperation of second card platform with first card platform for insulating bush (2) are located on DC charging terminal (3), and the tip of DC charging terminal (3) runs through and extend insulating bush (2) and set up in terminal dodges chamber (6).
3. The liquid cooling structure of the fully covered terminal as claimed in claim 2, wherein: and a third clamping table is arranged on the terminal avoiding cavity (6), and the heat conduction box (1) is arranged on the insulating bush (2) through the cooperation of the third clamping table and the second clamping table.
4. The liquid cooling structure of the fully covered terminal as claimed in claim 3, wherein: the insulation bushing (2) covers the first clamping table of the DC charging terminal (3) in the circumferential direction through the second clamping table.
5. The liquid cooling structure of the fully covered terminal as claimed in claim 4, wherein: and the terminal avoiding cavity (6) coats the circumferential direction of the second clamping table of the insulating bush (2) through the third clamping table.
6. A liquid-cooled structure of a fully covered terminal according to any one of claims 1 to 5, wherein: the fluid channel (7) wraps the terminal avoiding cavity (6) in a surrounding mode.
7. A liquid-cooled structure of a fully covered terminal according to any one of claims 1 to 5, wherein: a partition plate (8) is arranged in the fluid channel (7) between the water inlet pipe (4) and the water outlet pipe (5).
8. A liquid-cooled structure of a fully covered terminal according to any one of claims 1 to 5, wherein: the heat conducting box (1) is made of a heat conducting metal material, plastic material or ceramic material.
CN202110483330.0A 2021-04-30 2021-04-30 Liquid cooling structure of full-coverage type terminal Pending CN113147454A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110483330.0A CN113147454A (en) 2021-04-30 2021-04-30 Liquid cooling structure of full-coverage type terminal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110483330.0A CN113147454A (en) 2021-04-30 2021-04-30 Liquid cooling structure of full-coverage type terminal

Publications (1)

Publication Number Publication Date
CN113147454A true CN113147454A (en) 2021-07-23

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Application Number Title Priority Date Filing Date
CN202110483330.0A Pending CN113147454A (en) 2021-04-30 2021-04-30 Liquid cooling structure of full-coverage type terminal

Country Status (1)

Country Link
CN (1) CN113147454A (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106849238A (en) * 2017-02-17 2017-06-13 深圳市沃尔核材股份有限公司 Charging equipment cooling system
CN107425318A (en) * 2017-04-06 2017-12-01 乐视汽车（北京）有限公司 Charging gun
CN108879823A (en) * 2018-06-15 2018-11-23 深圳易瓦科技有限公司 Liquid-cooled charging system for electric automobile and its liquid cooling method
CN109728459A (en) * 2019-01-22 2019-05-07 上海蔚来汽车有限公司 Electro-hydraulic integrated form attachment device and vehicle
CN110254264A (en) * 2019-07-04 2019-09-20 昆山惠禾新能源科技有限公司 Liquid cooling terminal and charging gun
US20190291588A1 (en) * 2018-03-22 2019-09-26 Tesla, Inc. Liquid-cooled charging connector
CN110696651A (en) * 2019-09-27 2020-01-17 中航光电科技股份有限公司 Liquid cooling structure of charging terminal
CN112566472A (en) * 2020-12-21 2021-03-26 威海市泓淋电力技术股份有限公司 Non-contact liquid cooling system for high-power charging and liquid cooling method thereof

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106849238A (en) * 2017-02-17 2017-06-13 深圳市沃尔核材股份有限公司 Charging equipment cooling system
CN107425318A (en) * 2017-04-06 2017-12-01 乐视汽车（北京）有限公司 Charging gun
US20190291588A1 (en) * 2018-03-22 2019-09-26 Tesla, Inc. Liquid-cooled charging connector
CN108879823A (en) * 2018-06-15 2018-11-23 深圳易瓦科技有限公司 Liquid-cooled charging system for electric automobile and its liquid cooling method
CN109728459A (en) * 2019-01-22 2019-05-07 上海蔚来汽车有限公司 Electro-hydraulic integrated form attachment device and vehicle
CN110254264A (en) * 2019-07-04 2019-09-20 昆山惠禾新能源科技有限公司 Liquid cooling terminal and charging gun
CN110696651A (en) * 2019-09-27 2020-01-17 中航光电科技股份有限公司 Liquid cooling structure of charging terminal
CN112566472A (en) * 2020-12-21 2021-03-26 威海市泓淋电力技术股份有限公司 Non-contact liquid cooling system for high-power charging and liquid cooling method thereof

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Application publication date: 20210723