CN116080433A - Super quick charging seat - Google Patents

Super quick charging seat Download PDF

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Publication number
CN116080433A
CN116080433A CN202310133198.XA CN202310133198A CN116080433A CN 116080433 A CN116080433 A CN 116080433A CN 202310133198 A CN202310133198 A CN 202310133198A CN 116080433 A CN116080433 A CN 116080433A
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CN
China
Prior art keywords
heat
charging
heat pipe
terminal
super
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
CN202310133198.XA
Other languages
Chinese (zh)
Inventor
李明
董俊国
刘宇飞
江彦
常伟
张春伟
于锋
宋薇
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Jilin University
Original Assignee
Jilin University
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 Jilin University filed Critical Jilin University
Priority to CN202310133198.XA priority Critical patent/CN116080433A/en
Publication of CN116080433A publication Critical patent/CN116080433A/en
Pending legal-status Critical Current

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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
    • 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

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The invention is applicable to the technical field of charging equipment, in particular to the technical field of charging equipment, and particularly relates to a super-fast charging seat, which comprises: the charging seat comprises a charging seat shell, wherein an anode terminal and a cathode terminal are embedded in the charging seat shell, a heat conducting component is arranged at the periphery of one end of the anode terminal and the cathode terminal, and one end of the anode terminal, which is far away from the heat conducting component, is covered by a terminal shield structure; the cold source loop heat exchanger is embedded in the charging seat shell and fixedly connected with the heat conduction component, and the heat conduction component is covered by the heat pipe protective cover structure; the heat conduction assembly includes a temperature sensor for detecting the temperature of the positive and negative terminals. The invention adopts the heat pipe technology, utilizes the high-efficiency heat transfer efficiency of phase change heat transfer, quickly transfers the heat generated at the connection position of the charging terminal outwards, reduces the temperature at the connection position of the terminal, thereby providing guarantee for high charging power and accelerating the charging speed.

Description

Super quick charging seat
Technical Field
The invention belongs to the technical field of charging equipment, and particularly relates to a super-fast charging seat.
Background
Under the large background of carbon-to-carbon neutralization, the technology of the pure electric vehicle is rapidly developed as an important mode of emission reduction and carbon reduction. In order to improve the charging speed and optimize the user experience, developing high-power direct current charging is one of the main stream development directions. One of the main bottleneck factors currently limiting the charging speed of electric vehicles is the heat dissipation problem of the charging connector.
At present, the main current charging and radiating mode of the electric automobile is to cool a charging connector and a charging cable by adopting liquid, but the space of the position connected with the inner end of the charging connector is narrow, a structural member for reinforcing heat radiation is difficult to arrange, heat accumulation is serious, and the position of the inserted connection of the positive terminal and the negative terminal cannot be cooled well.
Disclosure of Invention
The embodiment of the invention aims to provide a super quick charging seat, which aims to solve the problems that the space of a connecting position of an inner terminal of a charging connector in the background art is narrow, a structural member for enhancing heat dissipation is difficult to arrange, heat accumulation is serious, and the plugging position of a positive terminal and a negative terminal cannot be cooled well.
The embodiment of the invention is realized in such a way that a super-fast-charging seat comprises:
the charging seat comprises a charging seat shell, wherein an anode terminal and a cathode terminal are embedded in the charging seat shell, a heat conducting component is arranged at the periphery of one end of the anode terminal and the cathode terminal, and one end of the anode terminal, which is far away from the heat conducting component, is covered by a terminal shield structure;
the cold source loop heat exchanger is embedded in the charging seat shell and fixedly connected with the heat conduction component, and the heat conduction component is covered by the heat pipe protective cover structure;
the heat conduction assembly includes a temperature sensor for detecting the temperature of the positive and negative terminals.
Preferably, the heat conduction assembly comprises an insulating layer, a heat pipe and a heat-resistant elastomer, wherein the insulating layer is sleeved on the periphery of the positive terminal and the negative terminal, the heat pipe is sleeved on the periphery of the insulating layer, the heat-resistant elastomer is sleeved on the periphery of the heat pipe, the cold source loop heat exchanger is provided with a cold source loop heat exchanger inlet and a cold source loop heat exchanger outlet, and two ends of the heat pipe are respectively communicated with the cold source loop heat exchanger inlet and the cold source loop heat exchanger outlet.
Preferably, a heat pipe shield structure is sleeved on the periphery of the heat pipe, and a sponge layer is filled between the heat pipe shield structure and the heat pipe.
Preferably, one end of the positive and negative electrode terminal is open, and the outer wall surface thereof is tapered.
Preferably, the heat pipe comprises an evaporation section and a condensation section, and the evaporation section of the heat pipe surrounds the outer sides of the positive terminal and the negative terminal.
Preferably, the insulating layer is a polyimide film.
Preferably, the temperature sensor is located outside the insulating layer.
According to the super quick charging seat provided by the embodiment of the invention, a heat pipe technology is adopted, the heat generated at the connection position of the charging terminal is quickly and outwards migrated by utilizing the high-efficiency heat transfer efficiency of phase change heat transfer, and the temperature at the connection position of the terminal is reduced, so that the guarantee is provided for high charging power, and the charging speed is increased.
Drawings
Fig. 1 is a schematic diagram of a super-fast charging stand according to the present invention.
Fig. 2 is a schematic front view of the super-quick charging stand according to the present invention.
Fig. 3 is a schematic diagram of the reverse side of the super-quick-charging stand according to the present invention.
FIG. 4 is a schematic side view of a super-charger according to the present invention
Fig. 5 is a schematic bottom cross-sectional view of the super-quick charge holder according to the present invention.
Fig. 6 is a schematic cross-sectional view of the charging stand housing and the cold source loop heat exchanger according to the present invention.
FIG. 7 is a schematic cross-sectional view showing the relative positions of the heat pipe and its auxiliary parts according to the present invention.
FIG. 8 is a schematic diagram of the temperature change of the positive and negative terminals without cooling in the simulation analysis according to the present invention.
FIG. 9 is a schematic diagram of the temperature change of the positive and negative terminals under the condition of start-up cooling in the simulation analysis according to the present invention.
In the drawings, the marks are as follows: 1. a charging stand housing; 11. a terminal shield structure; 12. a heat pipe shield structure; 2. positive and negative terminals; 3. an insulating layer; 4. a heat pipe; 5. a heat resistant elastomer; 6. a temperature sensor; 7. a sponge layer; 8. a cold source loop heat exchanger; 81. an inlet of the cold source loop heat exchanger; 82. and an outlet of the heat exchanger of the cold source loop.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that the terms "first," "second," and the like, as used herein, may be used to describe various elements, but these elements are not limited by these terms unless otherwise specified. These terms are only used to distinguish one element from another element. For example, a first xx script may be referred to as a second xx script, and similarly, a second xx script may be referred to as a first xx script, without departing from the scope of the present application.
In the prior art, after the charging connector is operated for a period of time, particularly during the fast charging process, the charging connector is the position with the highest temperature in the whole charging structure, so that potential safety hazards are caused, and effective cooling is needed. Therefore, improving the heat dissipation condition at the terminal connection is an effective way to increase the charging speed of the electric vehicle.
The invention adopts the heat pipe technology, utilizes the high-efficiency heat transfer efficiency of phase change heat transfer, quickly transfers the heat generated at the connection position of the charging terminal outwards, reduces the temperature at the connection position of the terminal, thereby providing guarantee for high charging power and accelerating the charging speed.
As shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6 and fig. 7, an embodiment of the present invention provides a super-fast charging stand, which includes:
the charging seat comprises a charging seat shell 1, wherein an anode terminal 2 and a cathode terminal 2 are embedded in the charging seat shell 1, a heat conducting component is arranged on the periphery of one end of the anode terminal 2, and one end, far away from the heat conducting component, of the anode terminal 2 is covered by a terminal shield structure 11;
the cold source loop heat exchanger 8 is embedded in the charging seat shell 1 and is fixedly connected with the heat conduction component, and the heat conduction component is covered by the heat pipe shield structure 12;
the heat conduction assembly comprises a temperature sensor 6, and the temperature sensor 6 is used for detecting the temperature of the positive and negative terminals 2.
In this embodiment, the structure in the charging seat housing 1 includes a terminal shield structure 11, the positive and negative terminals 2 are located in the terminal shield structure 11 of the charging seat housing 1, the positive and negative terminals 2 of the charging gun are inserted with the positive and negative terminals 2 of the charging seat, the arc evaporation section of the heat pipe 4 surrounds the outside of the positive and negative terminals 2, an insulating layer 3 is disposed between the evaporation section and the positive and negative terminals 2, the insulating layer 3 is a polyimide film PI film, the temperature sensor 6 is disposed on the outside of the PI film, between the evaporation sections of the two opposite heat pipes 4, and the heat-resistant elastomer 5 is disposed between the evaporation section of the heat pipe 4 and the terminal shield structure 11.
The charging seat shell 1 comprises a heat pipe shield structure 12, the heat insulation section of the heat pipe 4 is positioned in the heat pipe shield structure 12, and the heat pipe 4 is in a flake shape, so that the heat pipe 4 is protected by the heat pipe shield structure 12 due to poor mechanical property, and a sponge layer 7 is filled between the heat pipe 4 and the heat pipe shield structure 12 so as to play roles of reducing collision damage and heat insulation.
The evaporation section of the heat pipe 4 is in a semicircular flake shape, the outside of the positive and negative terminals 2 is oppositely surrounded, four heat pipes 4 are arranged on each side, the heat insulation section and the condensation section are in a rectangular flake shape, and the cold source loop can be provided by an electric automobile heat management system or can be directly processed by an automobile front end cooling module.
When the electric automobile starts to charge, the temperature of the junction of the positive terminal and the negative terminal 2 is not obviously increased, at the moment, the cold source loop does not enter a working state, the temperature of the junction of the positive terminal and the negative terminal 2 is gradually increased along with the gradual increase of the charging time, and when the temperature reaches a certain threshold value, the temperature sensor 6 transmits a signal to the control system, so that the cold source loop is started.
The generated heat is transferred to the evaporation section of the heat pipe from the junction of the positive electrode terminal 2 through the insulating layer 3, the heat is quickly transferred to the outside of the charging seat shell 1 from the junction of the positive electrode terminal 2 by means of the high heat transfer efficiency of the heat pipe 4, and then the heat is dissipated to the external environment through the cold source loop, so that the aim of controlling the temperature of the junction of the positive electrode terminal 2 and the negative electrode terminal 2 is fulfilled, and the potential safety hazard is reduced.
In order to meet the plugging requirement of the charging gun and the charging seat, the upper ends of the positive and negative terminals 2 in the charging seat are generally designed to be open, as shown in fig. 5, and the outer wall surfaces are generally conical surfaces with a certain angle, but are not regular cylindrical surfaces, so that good surface contact between the heat pipe 4, the insulating layer 3 and the outer wall surfaces of the positive and negative terminals 2 is required to be ensured, and the heat-resistant elastomer 5 arranged outside the evaporating section 41 of the heat pipe can apply thrust inwards, so that the heat pipe 4 and the insulating layer 3 are extruded outside the positive and negative terminals 2.
The effect of the invention is further illustrated by introducing simulation analysis, the model is simplified because part of the structure does not directly play a role in enhancing heat transfer, the charging seat shell 1, the heat-resistant elastomer 5, the temperature sensor 6, the cotton 7 and the cold source loop heat exchanger 8 are omitted, in addition, the fluid in the cold source loop heat radiator is used as a part to be added into the simulation, the phase change process in the heat pipe is extremely complex, the heat pipe is simplified into a lamellar entity to be simulated, the anisotropic heat conductivity coefficient is endowed, and the conditions in the simulation process are set as shown in the following table, wherein the heat conductivity coefficient of the heat pipe is respectively in the thickness direction and the length direction.
Terminal for connecting a plurality of terminals Insulating layer Heat pipe
Material of material Copper (Cu) Composite heat-conducting glue Aluminum alloy
Thermal conductivity W/(m.K) 401 1.5 237/28000
Under the condition that the initial environment temperature is 25 ℃ and the thermal management system designed by the invention is not used, the positive and negative terminals 2 do not have any cooling measures, the temperature of the positive and negative terminals 2 rises directly in the working process of the super quick charging seat, as shown in fig. 6, the highest temperature of the terminal surface and the average temperature of the surface rise from 25 ℃ to 90 ℃ within 60 seconds, and the charging safety of the electric automobile is seriously threatened.
For the charging seat thermal management system, if the temperature sensor 6 detects that the surface temperature of the positive terminal 2 and the negative terminal 2 reaches 50 ℃, the cold source loop heat exchanger 8 is started, so that heat can be continuously transferred out through the heat pipe 4. The simulation result shows that the temperature of the positive and negative electrode terminals 2 still rises at the initial start-up stage of the cold source loop heat exchanger 8, but the temperature change rate is reduced, which indicates that the charging seat thermal management system provided by the invention plays a role in cooling the positive and negative electrode terminals 2, the maximum temperature of the positive and negative electrode terminals 2 reaches the peak value 66.6 ℃ for about 90s after the cold source loop heat exchanger 8 is started, then gradually falls, the maximum temperature is reduced to 59.3 ℃ at 900s after the cold source loop heat exchanger 8 is started, the maximum temperature is judged to be stabilized at about 59 ℃ according to the curve change trend, and the temperature change curve is shown in fig. 7. In addition, as can be seen from the temperature change graph, the difference between the highest temperature of the positive electrode terminal 2 and the average temperature is only about 4 ℃, and the temperature can meet the use requirement and simultaneously maintain good temperature uniformity, so that the super quick charging seat is safer to use and better protected.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims (7)

1. A super-fast-charging cradle, the super-fast-charging cradle comprising:
the charging seat comprises a charging seat shell, wherein an anode terminal and a cathode terminal are embedded in the charging seat shell, a heat conducting component is arranged at the periphery of one end of the anode terminal and the cathode terminal, and one end of the anode terminal, which is far away from the heat conducting component, is covered by a terminal shield structure;
the cold source loop heat exchanger is embedded in the charging seat shell and fixedly connected with the heat conduction component, and the heat conduction component is covered by the heat pipe protective cover structure;
the heat conduction assembly includes a temperature sensor for detecting the temperature of the positive and negative terminals.
2. The super quick charge seat according to claim 1, wherein the heat conducting component comprises an insulating layer, a heat pipe and a heat-resistant elastomer, the insulating layer is sleeved on the periphery of the positive and negative terminals, the heat pipe is sleeved on the periphery of the insulating layer, the heat-resistant elastomer is sleeved on the periphery of the heat pipe, the cold source loop heat exchanger is provided with a cold source loop heat exchanger inlet and a cold source loop heat exchanger outlet, and two ends of the heat pipe are respectively communicated with the cold source loop heat exchanger inlet and the cold source loop heat exchanger outlet.
3. The super quick charge seat as set forth in claim 2 wherein the heat pipe is peripherally sleeved with a heat pipe shield structure, and a sponge layer is filled between the heat pipe shield structure and the heat pipe.
4. The super-quick charge holder as set forth in claim 1 wherein one end of the positive and negative terminals is open and the outer wall thereof is tapered.
5. The super-fast charge socket of claim 2, wherein the heat pipe comprises an evaporation section and a condensation section, the evaporation section of the heat pipe surrounding the outside of the positive and negative terminals.
6. The super-quick charge holder as set forth in claim 2 wherein the insulating layer is a polyimide film.
7. The super-fast charge holder as set forth in claim 2 wherein the temperature sensor is located outside of the insulating layer.
CN202310133198.XA 2023-02-20 2023-02-20 Super quick charging seat Pending CN116080433A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310133198.XA CN116080433A (en) 2023-02-20 2023-02-20 Super quick charging seat

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310133198.XA CN116080433A (en) 2023-02-20 2023-02-20 Super quick charging seat

Publications (1)

Publication Number Publication Date
CN116080433A true CN116080433A (en) 2023-05-09

Family

ID=86208270

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310133198.XA Pending CN116080433A (en) 2023-02-20 2023-02-20 Super quick charging seat

Country Status (1)

Country Link
CN (1) CN116080433A (en)

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