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CN113320441B - Fill electric pile and use coolant liquid transmission rifle - Google Patents

Fill electric pile and use coolant liquid transmission rifle Download PDF

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Publication number
CN113320441B
CN113320441B CN202110761951.0A CN202110761951A CN113320441B CN 113320441 B CN113320441 B CN 113320441B CN 202110761951 A CN202110761951 A CN 202110761951A CN 113320441 B CN113320441 B CN 113320441B
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CN
China
Prior art keywords
gun
end connector
connector
unlocking
charging pile
Prior art date
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Active
Application number
CN202110761951.0A
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Chinese (zh)
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CN113320441A (en
Inventor
严伟法
潘海峰
陈海斌
冯文广
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.)
Ningbo Daya Automobile Parts Co ltd
Original Assignee
Ningbo Daya Automobile Parts Co ltd
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Priority to CN202110761951.0A priority Critical patent/CN113320441B/en
Publication of CN113320441A publication Critical patent/CN113320441A/en
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Publication of CN113320441B publication Critical patent/CN113320441B/en
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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
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
    • B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567—Liquids
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using 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
    • Y02T10/70—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
    • Y02T90/14—Plug-in electric vehicles

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  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The application discloses fill electric pile and use coolant liquid transmission rifle, include the rifle casing and install in the rifle end joint of rifle casing, the rifle end joint fill electric pile through two independent water pipelines and car and be connected, be provided with the car end joint on the car, rifle end joint and car end joint peg graft then coolant liquid fill electric pile and car battery package between the circular transportation at the car. The circulating coolant can be introduced from the outside into the battery pack to dissipate heat.

Description

Fill electric pile and use coolant liquid transmission rifle
Technical Field
The application relates to the field of new energy vehicles, especially, relate to a fill coolant liquid transmission rifle for electric pile.
Background
The power battery is used as an original element of the energy storage device, is the most key core component of the pure electric vehicle, and the performance and the service life of the power battery directly determine the performance of the electric vehicle. In order to ensure the endurance mileage of the automobile, the electric quantity of the single battery cores is improved, and the single battery cores are required to be closely arranged in a series-parallel connection mode to form a battery pack. When the electric automobile runs under different running conditions, the power battery can be charged and discharged at different multiplying powers, and a large amount of heat is generated at the same time. And at this moment, the power battery is rapidly charged, and the safety problem of the power battery is influenced by a large amount of heat generated by rapid charging. A large amount of heat accumulation in the power battery, if can not in time derive the heat, the accumulation and spatial structure's that along with time influence will arouse inhomogeneous heat gathering to lead to power battery temperature unbalance, cause the performance difference between the electric core, lead to the battery performance to descend, the life-span shortens, can lead to the spontaneous combustion to take place even when serious.
Disclosure of Invention
An aim at of this application provides a fill electric pile and use coolant liquid transmission rifle, can dispel the heat to the leading-in recirculated cooling liquid of battery package from the outside.
Another aim at of this application provides a fill electric pile and use coolant liquid transmission rifle, has the locking function, and transmission rifle is extracted and then stops transmitting the coolant liquid.
Another aim at of this application provides a fill electric pile and use coolant liquid transmission rifle, has the response function, confirms that transmission rifle and car butt joint are accomplished.
Another aim at of this application provides a fill electric pile and use coolant liquid transmission rifle, the coolant liquid transmission just does not take place to reveal.
Another object of the application is to provide a fill electric pile and use coolant liquid transmission rifle is provided with the electronic lock for transmission rifle does not take place transmission interrupt under the incomplete lower extreme of charging.
Another aim at of this application provides a fill electric pile and use coolant liquid transmission rifle is provided with micro-gap switch, and micro-gap switch is used for controlling the transmission of coolant liquid.
The technical scheme adopted by the application is as follows: a coolant delivery gun for a charging pile, comprising: the rifle casing with install in the rifle end connector of rifle casing, the rifle end connector fill electric pile through two independent water pipelines and car and be connected, be provided with the car end connector on the car, rifle end connector and car end connector peg graft then coolant liquid at the car fill electric pile and car battery package between the circulation transport.
Compared with the prior art, the advantage of this application lies in, considers the unable derivation of battery package heat in the electric automobile, sets up coolant liquid transmission rifle, connects automobile battery package and car through coolant liquid transmission rifle and fills electric pile, realizes conducting overheated coolant liquid in the automobile battery package to the car and fills electric pile, imports the automobile battery package with the coolant liquid of suitable temperature again. Through the circulation transport of coolant liquid, and then take away the heat of battery package, reach the effect of cooling battery package.
For better implementation this application, can deposit the coolant liquid in car charging pile in advance, this application and car end connector after being connected. The water pump in the automobile charging pile is started, and the cooling liquid in the automobile charging pile is conveyed to the automobile battery pack. The coolant liquid in the car battery package can outwards discharge to car charging pile through water pipeline, accomplishes the circulation transport of coolant liquid.
The automobile cooling system is provided with two independent water pipelines, wherein one pipeline realizes the guiding of cooling liquid from an automobile charging pile to an automobile battery pack, and the other pipeline realizes the guiding of the cooling liquid from the automobile battery pack to the automobile charging pile.
In some embodiments of the present application, a quick-connect coupling is mounted in the gun end fitting, and the quick-connect coupling is connected to a water line. The setting of quick connector makes this application and car end articulate time, and the plug is simple, and in-process coolant liquid does not leak outward.
In some embodiments of the present application, the quick connector is connected to the water line by a fitting tube. One end of the assembling pipe is fixedly connected with the quick-plugging connector through threads, and the other end of the assembling pipe is inserted into the water pipeline. The connection between the assembling pipe and the quick connector is hermetical, and the connection between the assembling pipe and the water pipeline is hermetical. And the cooling liquid is ensured not to leak in the conveying process of the cooling liquid.
In some embodiments of the present application, the quick connector corresponds to the water pipe, and two channels are disposed in the quick connector and are connected to the water pipe in a one-to-one correspondence.
In some embodiments of the present application, the gun-end connector housing is provided with an unlocking pull ring for locking the vehicle-end connector, and the unlocking pull ring is stressed to be movable and unlocked with the vehicle-end connector.
In some embodiments of this application, unblock pull ring inner wall be provided with the echelonment working face, working face and rifle end joint outer wall between be provided with the locking ball, the rifle end joint seted up the notch, the locking ball part can stretch out the notch.
In some embodiments of this application, car end connector's outer peripheral face seted up the draw-in groove, the draw-in groove corresponds with the notch, the working face can promote the locking piece and stretch out the notch and imbed the draw-in groove.
In this embodiment, the unlocking tab is locked to the vehicle end fitting by a locking ball.
In some embodiments of the present application, the unlocking spring is provided between the unlocking pull ring and the gun end joint, the unlocking spring is in a compressed state, and the unlocking spring applies force to enable the unlocking pull ring to push the locking ball out of the notch.
In particular, the stepped active surface will comprise at least two sections, wherein the inner diameter of one section is smaller than the inner diameter of the other section.
In this application, the smaller inner diameter section of the active surface is in contact with the locking ball, which is then pressed out of the slot. The section with larger inner diameter in the action surface is contacted with the locking ball, and then the locking ball can retract into the gun end joint and the unlocking pull ring.
Then in this application, operating personnel will rifle end joint and car end joint to inserting, and the locking ball will be automatic imbeds in the draw-in groove of car end joint, locks the connected state of rifle end joint and car end joint, carries out the circular transportation of coolant liquid.
And after the charging is finished, the ejector rod of the electronic lock retracts to the original position. An operator applies force to pull the unlocking pull ring, so that the locking ball is not stressed by the force of the acting surface, the locking ball retracts, the connection state of the gun end connector and the vehicle end connector is unlocked at the moment, and the gun end connector can be pulled out from the vehicle end connector.
In some embodiments of the present application, one end of the unlocking spring is connected to the unlocking pull ring, the other end of the unlocking spring is connected to the gun end joint, and the unlocking spring applies a force to push the unlocking pull ring to a side away from the water pipeline. When the gun end connector is connected with the vehicle end connector, the unlocking spring applies force to push the unlocking pull ring to one side of the vehicle end connector.
In some embodiments of this application, rifle end joint periphery be fixed with the holding ring, unblock pull ring cover establish outside the holding ring, the unblock spring other end act on the holding ring. The positioning ring structure is arranged, so that the unlocking spring is convenient to mount, and the positioning ring can be sleeved into the gun end connector after the unlocking spring is assembled.
Specifically, the outer peripheral surface of the positioning ring is lined on the inner wall of the unlocking pull ring, and the positioning ring plays a role in guiding the unlocking pull ring in the movement process of the unlocking pull ring, so that the unlocking pull ring can stably move.
In some embodiments of the present application, a micro switch for controlling the cooling fluid is further included, and the micro switch is installed in the gun end female head. And after the microswitch on the gun end connector is electrified, a water pump in the automobile charging pile is started, and the cooling liquid is conveyed to the automobile battery pack.
In some embodiments of the present application, an inner core is disposed in the gun end joint, the gun end joint is sleeved with the inner core, and the quick connector is connected with the gun end joint through the inner core.
In some embodiments of the present application, the inner core is provided with an installation groove, and the micro switch is disposed in the installation groove.
The microswitch controls the transmission of the cooling liquid and is connected with a charging system of the automobile charging pile; after the gun end connector is connected with the vehicle end connector, the microswitch contact is in contact with the vehicle end connector and then electrified to start the water pump to work, and the cooling liquid is pumped into the battery pack for circulating cooling and heat dissipation.
In some embodiments of the present application, an electronic lock is also included, the electronic lock being mounted on the gun housing. The electronic lock controls unlocking of the unlocking pull ring. The electronic lock is connected with a charging system of the automobile charging pile. When the gun end connector and the vehicle end connector are butted and start to be charged, the push rod of the electronic lock is pushed out to limit the unlocking pull ring to retreat, so that the unlocking of the unlocking pull ring can not occur under the condition that charging is not completed, and the charging interruption caused by misoperation is avoided.
In some embodiments of the present application, the gun housing surface is provided with a handle. The portable rifle end connector of operating personnel of being convenient for then with car end connector plug.
In some embodiments of the present application, the surface of the end fitting is provided with a guide plane, and the inner wall of the end fitting is provided with a guide plane corresponding to the guide plane. The gun end connectors are oppositely inserted along the guide plane. This application has restricted the rifle end connector and has taken place relative movement between the car end connector through direction plane and leading-in planar correspondence on the circumferencial direction to make rifle end connector and car end connector be connected reliable and stable.
In some embodiments of the present application, two passages are independently disposed in the vehicle end connector, one end of each passage is connected to the coolant pipeline, a movable valve core is mounted in each passage, and the other end of each passage is blocked by the movable valve core.
In some embodiments of the present application, the movable valve core is installed in the passage through a first spring, the first spring provides a force for the movable valve core to block the passage, the movable valve core retracts into the passage by an external force, and the other end of the passage is opened.
In some embodiments of the present application, the quick connector includes a connector housing, a fixed valve core and a movable valve sleeve, a channel is disposed in the connector housing, one end of the channel is connected to the water pipeline, and the other end of the channel is blocked by the movable valve sleeve and the fixed valve core.
In some embodiments of the present application, the stationary valve cartridge is stationary relative to the gun end housing. When the vehicle end connector and the gun end connector are connected in an opposite insertion mode, the fixed valve core acts on the movable valve core and pushes the movable valve core to retract into the passage.
In some embodiments of the present application, the movable valve sleeve is sleeved outside the fixed valve core, the movable valve sleeve is installed on the inner wall of the gun end housing through a second spring, and the movable valve sleeve is forced to move along the axial direction of the movable valve sleeve. The movable valve sleeve is retracted into the gun end shell under force, and the other end of the channel is opened.
When the vehicle end connector and the gun end connector are connected in an opposite insertion mode, the vehicle end connector acts on the movable valve sleeve and pushes the movable valve sleeve to retract into the channel.
Drawings
The present application will be described in further detail below with reference to the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of illustrating the preferred embodiments and should not be taken as limiting the scope of the present application. Furthermore, unless specifically stated otherwise, the drawings are merely schematic representations based on conceptual representations of elements or structures depicted and may contain exaggerated displays and are not necessarily drawn to scale.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a sectional view showing the internal structure of the present invention;
FIG. 3 is a schematic view of the structure of the car end fitting;
fig. 4 is a schematic structural diagram of the working state of the present invention.
Wherein the reference numerals are specified as follows: 1. a coolant line; 2. a first spring; 3. a movable valve core; 4. turning an end joint; 5. a quick connector; 6. a gun end joint; 7. an unlocking spring; 8. a positioning ring; 9. an inner core; 10. unlocking the pull ring; 11. assembling a pipe; 12. a microswitch; 13. a gun housing; 14. a water line; 15. an electronic lock; 20. a locking ball; 21. a movable valve sleeve; 22. fixing the valve core; 23. a second spring.
Detailed Description
The present application will now be described in detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
As shown in fig. 1 to 4: a coolant delivery gun for a charging pile, comprising: rifle casing 13 with install in rifle casing 13's rifle end connector 6, rifle end connector 6 fill electric pile with the car through two independent water pipeline 14 and be connected, be provided with car end connector 4 on the car, rifle end connector 6 and car end connector 4 peg graft then coolant liquid at the car fill electric pile and automobile battery package between the circular transportation. Connect car battery package and car through coolant liquid transmission rifle and fill electric pile, realize filling electric pile with overheated coolant liquid conduction to car in the car battery package, with leading-in to car battery package again of coolant liquid of suitable temperature. Through the circulation transport of coolant liquid, and then take away the heat of battery package, reach the effect of cooling battery package.
For better implementation this application, can deposit the coolant liquid in car charging pile in advance, be connected the back at this application and car end connector 4. And conveying the cooling liquid in the automobile charging pile to an automobile battery pack. And after the microswitch on the gun end connector is electrified, a water pump in the automobile charging pile is started, and the cooling liquid is conveyed to the automobile battery pack. The coolant liquid in the car battery package can outwards be discharged to car charging pile through water pipeline 14 naturally, accomplishes the circulation transport of coolant liquid.
The automobile cooling system is provided with two independent water pipelines 14, wherein one pipeline realizes the guiding of cooling liquid from an automobile charging pile to an automobile battery pack, and the other pipeline realizes the guiding of the cooling liquid from the automobile battery pack to the automobile charging pile.
In the embodiment of the present application, a quick connector 5 is installed in the gun end connector 6, and the quick connector 5 is connected with a water pipeline 14. The arrangement of the quick-connection-peg 5 enables the application to be connected with the vehicle-end connector 4, so that the plugging and the pulling are simple, and the cooling liquid does not leak outwards in the process. The quick connector 5 is connected to a water pipe 14 via a fitting pipe 11. One end of the assembling pipe 11 is fixedly connected with the quick connector 5 by screw thread, and the other end of the assembling pipe 11 is inserted into the water pipeline 14. The connection between the assembling pipe 11 and the quick-connection plug 5 is airtight, and the connection between the assembling pipe 11 and the water pipeline 14 is airtight. And the cooling liquid is ensured not to leak in the conveying process of the cooling liquid. The quick connector 5 corresponds to the water pipeline 14, two channels are arranged in the quick connector 5, and the channels are connected with the water pipeline 14 in a one-to-one correspondence mode.
The gun end connector 6 is externally sleeved with an unlocking pull ring 10 used for locking the vehicle end connector 4, and the unlocking pull ring 10 is stressed to move and can be unlocked with the vehicle end connector 4.
The inner wall of the unlocking pull ring 10 is provided with a step-shaped action surface, a locking ball 20 is arranged between the action surface and the outer wall of the gun end connector 6, the gun end connector 6 is provided with a notch, and part of the locking ball 20 can extend out of the notch. The outer peripheral surface of the vehicle end connector 4 is provided with a clamping groove, the clamping groove corresponds to the notch, and the acting surface can push the locking piece to extend out of the notch and be embedded into the clamping groove. In this embodiment, the unlocking tab 10 is locked to the vehicle end fitting 4 by the locking ball 20.
An unlocking spring 7 is arranged between the unlocking pull ring 10 and the gun end connector 6, the unlocking spring 7 is in a compressed state, and the unlocking spring 7 applies force to enable the unlocking pull ring 10 to push the locking ball 20 out of the notch. In particular, the stepped active surface will comprise at least two sections, wherein the inner diameter of one section is smaller than the inner diameter of the other section. In the present application, the smaller inner diameter section of the active surface contacts the locking ball 20, and the locking ball 20 is pressed out of the notch. The section of the active surface with the larger inner diameter is in contact with the locking ball 20, and the locking ball 20 can be retracted into the gun end fitting 6 and the unlocking tab 10.
In this application, the operator inserts the gun-end connector 6 and the vehicle-end connector 4, and the locking ball 20 is automatically inserted into the clamping groove of the vehicle-end connector 4, so that the connection state of the gun-end connector 6 and the vehicle-end connector 4 is locked, and the coolant is circulated and conveyed. And after the charging is finished, the ejector rod of the electronic lock 15 retracts to the original position. An operator applies force to pull the unlocking pull ring 10, so that the locking ball 20 is not stressed by the force of an acting surface, the locking ball 20 retracts, the connection state of the gun end connector 6 and the vehicle end connector 4 is unlocked at the moment, and the gun end connector 6 can be pulled out from the vehicle end connector 4.
One end of the unlocking spring 7 is connected with the unlocking pull ring 10, the other end of the unlocking spring 7 is connected with the gun end connector 6, and the unlocking spring 7 applies force to push the unlocking pull ring 10 to one side away from a water pipeline. When the gun-end joint 6 is connected with the vehicle-end joint 4, the unlocking spring 7 applies force to push the unlocking tab 10 to the vehicle-end joint 4 side.
The periphery of the gun end connector 6 is fixed with a positioning ring 8, an unlocking pull ring 10 is sleeved outside the positioning ring 8, and the other end of the unlocking spring 7 acts on the positioning ring 8. The structure of the positioning ring 8 is arranged, so that the unlocking spring 7 is convenient to install, and the positioning ring 8 can be sleeved into the gun end connector 6 after the unlocking spring 7 is assembled. Specifically, the outer peripheral surface of the positioning ring 8 is lined on the inner wall of the unlocking pull ring 10, and in the movement process of the unlocking pull ring 10, the positioning ring 8 plays a role in guiding the unlocking pull ring 10, so that the unlocking pull ring 10 is stable in movement.
The cooling device also comprises a microswitch 12 for controlling cooling liquid, wherein the microswitch 12 is arranged in the gun end female head. The gun end connector 6 is internally provided with an inner core 9, the gun end connector 6 is sleeved with the inner core 9, and the quick connector 5 is connected with the gun end connector 6 through the inner core 9. The inner core 9 is provided with an installation groove, and the micro switch 12 is arranged in the installation groove.
The microswitch 12 controls the transmission of the cooling liquid, and the microswitch 12 is connected with a charging system of the automobile charging pile; after the gun end connector 6 is connected with the vehicle end connector 4, the contact of the microswitch 12 is in contact with the vehicle end connector 4, then the water pump can be started to work by electrifying, and cooling liquid is pumped into the battery pack for circulating cooling and heat dissipation.
And the electronic lock 15 is also included, and the electronic lock 15 is arranged on the gun shell 13. The electronic lock 15 controls unlocking of the unlocking pull ring 10, and the electronic lock 15 is connected with a charging system of the automobile charging pile; when the gun end connector 6 and the vehicle end connector 4 are butted and start to charge, the push rod of the electronic lock 15 is pushed out to limit the unlocking pull ring 10 to retreat, so that the unlocking of the unlocking pull ring 10 cannot occur under the condition that the charging is not completed, and the charging interruption caused by misoperation is avoided.
The surface of the gun shell 13 is provided with a handle. It is convenient for the operator to carry the gun end connector 6 by hand and then to plug the vehicle end connector 4.
The surface of the end connector 4 of the vehicle is provided with a guide plane, and the inner wall of the end connector 6 of the gun is provided with a guide plane corresponding to the guide plane. The gun end joint 6 is inserted along the guide plane. This application has restricted the rifle end joint 6 and has taken place relative movement between car end joint 4 through the correspondence of guidance plane and leading-in plane on the circumferencial direction to make rifle end joint 6 and car end joint 4's connection reliable and stable.
Two passages are independently arranged in the vehicle end connector 4, one end of each passage is connected with the cooling liquid pipeline 1, a movable valve core 3 is arranged in each passage, and the other end of each passage is blocked by the movable valve core 3. The movable valve core 3 is arranged in the passage through the first spring 2, the first spring 2 provides force for the movable valve core 3 to block the passage, the movable valve core 3 retracts into the passage under the action of external force, and the other end of the passage is opened.
The quick connector 5 comprises a connector shell, a fixed valve core 22 and a movable valve core 21, a channel is arranged in the connector shell, one end of the channel is connected with the water pipeline 14, and the other end of the channel is blocked by the movable valve core 21 and the fixed valve core 22. The stationary core 22 is fixed relative to the gun end housing. When the vehicle end connector 4 and the gun end connector 6 are connected in an opposite inserting mode, the fixed valve core 22 acts on the movable valve core 3 and pushes the movable valve core 3 to retract into the passage. The movable valve sleeve 21 is sleeved outside the fixed valve core 22, the movable valve sleeve 21 is mounted on the inner wall of the gun end shell through a second spring 23, and the movable valve sleeve 21 moves along the axial direction under the stress. The movable valve sleeve 21 is forced to retract into the gun end housing and the other end of the channel is opened. When the vehicle end connector 4 is connected with the gun end connector 6 in an opposite insertion mode, the vehicle end connector 4 acts on the movable valve sleeve 21 and pushes the movable valve sleeve 21 to retract into the channel.
The present application has been described in detail above, and specific examples thereof are used herein to explain the principles and implementations of the present application, which are presented solely to aid in understanding the present application and its core concepts. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.

Claims (7)

1. A cooling liquid transmission gun for a charging pile is characterized by comprising a gun shell (13) and a gun end connector (6) arranged on the gun shell (13), wherein the gun end connector (6) is connected with an automobile charging pile through two independent water pipelines (14), an automobile end connector (4) is arranged on an automobile, and cooling liquid is circularly transmitted between the automobile charging pile and an automobile battery pack when the gun end connector (6) is plugged with the automobile end connector (4);
an unlocking pull ring (10) used for locking the vehicle end connector (4) is sleeved outside the gun end connector (6), and the unlocking pull ring (10) is stressed to move and is unlocked with the vehicle end connector (4); the electronic lock (15) is arranged on the gun shell (13); the electronic lock (15) controls the unlocking of the unlocking pull ring (10); the electronic lock (15) is connected with a charging system of the automobile charging pile; when the gun end connector (6) and the vehicle end connector (4) are butted and start to charge, the push rod of the electronic lock (15) is pushed out to limit the unlocking pull ring (10) to retreat; after charging is completed, the push rod of the electronic lock (15) retracts to the original position;
the cooling device also comprises a microswitch (12) for controlling cooling liquid, wherein the microswitch (12) is arranged in the gun end female head; microswitch (12) on rifle end connector (6) circular telegram back start-up car fills the water pump in the electric pile, carries the coolant liquid to car battery package.
2. The coolant transfer gun for the charging pile according to claim 1, wherein a quick connector (5) is installed in the gun end connector (6), and the quick connector (5) is connected with the water pipeline (14).
3. The cooling liquid transmission gun for the charging pile according to claim 2, wherein the quick connector (5) is connected with the water pipeline (14) through an assembly pipe (11), the quick connector (5) corresponds to the water pipeline (14), two channels are arranged in the quick connector (5), and the channels are connected with the water pipeline (14) in a one-to-one correspondence manner.
4. The coolant delivery gun for the charging pile according to claim 3, wherein a stepped action surface is arranged on the inner wall of the unlocking pull ring (10), a locking ball (20) is arranged between the action surface and the outer wall of the gun end connector (6), a notch is formed in the gun end connector (6), and part of the locking ball (20) can extend out of the notch.
5. The cooling liquid transmission gun for the charging pile is characterized in that a clamping groove is formed in the outer peripheral surface of the vehicle end connector (4), the clamping groove corresponds to the notch, and the acting surface can push the locking piece to extend out of the notch and be embedded into the clamping groove.
6. The cooling liquid transfer gun for the charging pile is characterized in that an unlocking spring (7) is arranged between the unlocking pull ring (10) and the gun end connector (6), the unlocking spring (7) is in a compressed state, and the unlocking spring (7) applies force to enable the unlocking pull ring (10) to push the locking ball (20) out of the notch.
7. The cooling liquid transmission gun for the charging pile according to claim 1, wherein a guide plane is arranged on the surface of the vehicle end connector (4), and a guide plane corresponding to the guide plane is arranged on the inner wall of the gun end connector (6).
CN202110761951.0A 2021-07-06 2021-07-06 Fill electric pile and use coolant liquid transmission rifle Active CN113320441B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110761951.0A CN113320441B (en) 2021-07-06 2021-07-06 Fill electric pile and use coolant liquid transmission rifle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110761951.0A CN113320441B (en) 2021-07-06 2021-07-06 Fill electric pile and use coolant liquid transmission rifle

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CN113320441A CN113320441A (en) 2021-08-31
CN113320441B true CN113320441B (en) 2023-03-07

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106711549A (en) * 2017-01-23 2017-05-24 青岛逸轩产品设计有限公司 Quick charging pile with cooling system and heating system
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
CN108317323A (en) * 2018-02-08 2018-07-24 宁波大雅汽车部件有限公司 Quick connector with automatic cut-off function
CN211252234U (en) * 2019-07-03 2020-08-14 宝能(广州)汽车研究院有限公司 Charging gun, charging pile, vehicle and charging system of vehicle
DE102019114765B3 (en) * 2019-06-03 2020-10-15 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Charging cable arrangement for charging a traction battery of an electric vehicle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106711549A (en) * 2017-01-23 2017-05-24 青岛逸轩产品设计有限公司 Quick charging pile with cooling system and heating system
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
CN108317323A (en) * 2018-02-08 2018-07-24 宁波大雅汽车部件有限公司 Quick connector with automatic cut-off function
DE102019114765B3 (en) * 2019-06-03 2020-10-15 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Charging cable arrangement for charging a traction battery of an electric vehicle
CN211252234U (en) * 2019-07-03 2020-08-14 宝能(广州)汽车研究院有限公司 Charging gun, charging pile, vehicle and charging system of vehicle

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