Multi-cavity integrated cooling gun head

Abstract

This invention relates to the field of automotive charging technology, specifically to a multi-cavity integrated cooling gun head, comprising a charging gun handle, a charging gun plug, a locking component, and electronic components. It also includes a flow regulating valve, an inlet pipe, an outlet pipe, a guide pipe, a docking assembly, a separating assembly, a movable plate, and a charging head. The flow regulating valve is connected to the right side of the charging gun plug's inner cavity. The inlet and outlet pipes are both connected to the right side of the flow regulating valve. The guide pipe is connected to the left side of the flow regulating valve. The docking assembly is connected to the inlet pipe. The separating assembly is connected to the guide pipe. The movable plate is slidably connected to the charging gun plug's inner cavity and is positioned between the docking assembly and the separating assembly. The charging head is connected to the left side of the movable plate. This invention, by pulling the charging head and charging gun plug out of the electric vehicle charging port in stages, decomposes the large one-time resistance into two smaller resistances, thereby greatly reducing the force required for the user to disconnect the vehicle from charging.

Description

Technical Field

[0001] This invention relates to the field of automotive charging technology, specifically to a multi-cavity integrated cooling gun head. Background Technology

[0002] As a green mode of transportation, electric vehicles have become an important direction for the transformation and upgrading of the automotive industry. In order to reduce the charging time of electric vehicles and improve the energy supply efficiency of electric vehicles, high-power electric vehicle charging guns will be installed in charging stations to achieve fast charging of electric vehicles.

[0003] The working principle of a car charging gun is as follows: The car charging gun connects to the vehicle's charging interface, transmitting power from the charging station to the electric vehicle. During the charging process, the charging head of the charging gun is in close contact with the electric vehicle's charging interface. During high-power charging, a large current flows through the charging head and the electric vehicle's interface. This large current generates significant heat at the charging head and the charging interface. The thermal expansion caused by the heated charging head leads to an even tighter fit between the charging head and the charging port. When charging is complete, the tight fit between the charging head and the charging port requires considerable force to remove the charging gun. For some people with weaker strength, the car charging gun cannot be directly removed after charging, requiring them to wait for the head to cool down before the next use, resulting in an excessively long interval between uses.

[0004] To address the aforementioned issues, some solutions have been proposed in the prior art. For example, by setting up an assist device, the charging gun can be unplugged from the electric vehicle's charging port after charging is complete, thereby effectively reducing the difficulty for users to plug and unplug. However, since the assist device needs to be connected via an external device, it results in a larger size for the charging gun, making it inconvenient to use.

[0005] To address this, a multi-cavity integrated cooling gun head is proposed. Summary of the Invention

[0006] The purpose of this invention is to provide a multi-cavity integrated cooling gun head that solves the problem of thermal expansion of the charging gun caused by high current during high-power charging, which makes it difficult to remove the charging gun. By setting up a pipe, silicone oil circulates within the charging gun to carry away heat, thereby achieving rapid cooling of the charging gun. Simultaneously, when removing the charging gun, the pipe can be closed, allowing the silicone oil to accumulate and expand in the separation component. The expanding separation component pushes a movable plate, causing the charging head to retract from the vehicle's charging port into the inner cavity of the charging gun plug, thus enabling the charging head to be removed before the charging gun plug, effectively reducing the resistance to removing the charging gun.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A multi-cavity integrated cooling gun head, installed on a charging pile, includes a charging gun handle, a charging gun plug, a locking component, and electronic components. It also includes a flow regulating valve, an inlet pipe, an outlet pipe, a guide pipe, a docking assembly, a separation assembly, a movable plate, and a charging head. The flow regulating valve is connected to the right side of the charging gun plug's inner cavity. The inlet and outlet pipes are both connected to the right side of the flow regulating valve. The guide pipe is connected to the left side of the flow regulating valve. The docking assembly is connected to the inlet pipe. The separation assembly is connected to the guide pipe. The movable plate is slidably connected to the charging gun plug's inner cavity and is positioned between the docking assembly and the separation assembly. The charging head is connected to the left side of the movable plate. The locking component fixes the charging gun plug to the electric vehicle's charging port. During power transmission, the flow regulating valve drives the docking assembly through the inlet pipe, causing the charging head to move to the left and insert into the electric vehicle's charging port. During disconnection, the flow regulating valve drives the separation assembly through the guide pipe, causing the charging head to move to the right and separate from the electric vehicle's charging port.

[0009] Through the above scheme, the flow control valve can selectively allow silicone oil to accumulate in a specific pipeline, thereby driving the docking component or the separating component. The driven docking component or the separating component pushes the movable plate, which in turn drives the charging head to move relative to the charging gun plug, thereby realizing the step-by-step movement of the charging head and the charging gun plug, thus effectively reducing friction.

[0010] Preferably, the flow regulating valve includes a valve seat, a toothed plate, a rack, a spring, and a slider. The valve seat is fixedly connected to the inner cavity of the charging gun plug. The toothed plate is rotatably connected to the valve seat. The rack is meshed with the upper side of the toothed plate. Springs are connected to both sides of the rack, and the other end of the springs is connected to the inner wall of the charging gun plug. Two through holes are opened on the surface of the toothed plate, and the included angle between the center of the two through holes and the axis of the toothed plate is 120°. The rack drives the toothed plate to rotate unidirectionally by an angle of 120°. The slider is connected to the upper side of the rack.

[0011] The above scheme allows the moving rack to rotate the toothed plate, thereby sealing the feed pipe and guide pipe or the discharge pipe and guide pipe, thus controlling the accumulation position of silicone oil and adjusting the direction of the assist.

[0012] Preferably, the inner diameters of the feed pipe, discharge pipe, and guide pipe are the same, and the diameter of the through hole is greater than the inner diameter of the feed pipe.

[0013] The above solution allows the diameter of the through hole to be larger than the inner diameter of the feed pipe, thereby effectively reducing the machining and assembly precision requirements of the through hole. This ensures that slight misalignment between the through hole and the feed pipe and the discharge pipe will not affect the flow of silicone oil, thus reducing production costs and increasing the service life of the equipment.

[0014] Preferably, the bottom of the movable plate has limit grooves on the front and rear sides, the front and rear sides of the slider are inclined, and the top of the slider has a sliding groove, the width of which is greater than the thickness of the movable plate.

[0015] With the above solution, inclined working surfaces are provided on the front and rear sides of the slider. When the edge of the limiting groove on the movable plate contacts the inclined working surface of the slider, the axial movement of the movable plate can be converted into radial thrust on the slider, thereby reducing the extra operation of personnel and improving the convenience of the cooling gun head.

[0016] Preferably, the docking assembly includes a fixing plate, a base, and a pusher. The fixing plate is connected to the right end of the inner cavity of the charging gun plug, the base is connected to the feed tube, the fixed end of the pusher is connected to the base, and the movable end of the pusher faces the movable plate. When the slider engages with the rear limiting groove, the movable end of the pusher is in contact with the right end of the slider.

[0017] Preferably, the separation assembly includes a positioning plate, a mounting base, and a top bladder. The positioning plate is connected to the inner cavity of the charging gun plug and is located to the left of the fixed plate. The mounting base is connected to the guide tube. The fixed end of the top bladder is connected to the mounting base, and the movable end of the top bladder faces the movable plate.

[0018] The above solution uses a positioning plate and a fixing plate to form a partition chamber, thereby separating the high-temperature charging head from the electronic components, which greatly improves the stability of the electronic components and the safety of the charging gun.

[0019] Preferably, the right ends of the front and rear sides of the slider are connected to springs, and the adjacent sides of the movable plate with the limiting groove are chamfered.

[0020] With the above solution, the spring is designed to facilitate pushing the movable plate forward, so that the side wall of the limiting groove fits against the slider, thereby pushing the charging head to extend when not charging.

[0021] Preferably, both the push bladder and the top bladder include a contracted state and an open state, and the longitudinal cross-section of the open top bladder is corrugated.

[0022] The above scheme results in a corrugated longitudinal cross-section of the open top bladder, which effectively increases the contact area between the top bladder and the air, facilitating heat absorption and cooling of the charging head.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] 1. This invention solves the problem of difficulty in removing the charging gun due to thermal expansion caused by high current during high-power charging. By setting a flow regulating valve, the flow regulating valve can selectively introduce silicone oil into the docking component or the separation component. When removing the gun, the top bladder of the separation component expands and pushes the movable plate to the right, thereby first retracting the charging head into the inner cavity of the charging gun plug, and then separating the charging gun plug from the vehicle charging port. This realizes the step-by-step removal of the charging head and the removal of the charging gun plug, and decomposes the one-time large resistance into two small resistances, which greatly reduces the user's pulling force and solves the problem of difficulty in removing the gun caused by thermal expansion of the charging head.

[0025] 2. By setting up a separation component, when the gun is pulled out, the flow regulating valve closes the discharge pipe, causing the low-temperature silicone oil to accumulate in the top bladder of the separation component. Then, the pressure of the coolant causes the top bladder to expand. The thrust generated by the expansion of the top bladder causes the charging head to separate from the car charging port before the charging gun plug. At the same time, the expansion of the top bladder increases the contact area between the coolant and the heat source, thereby achieving a rapid drop in the temperature of the charging head, facilitating the next insertion of the charging head, and thus reducing the usage interval of the charging gun.

[0026] 3. By setting up a fixing plate and a positioning plate, the fixing plate and the positioning plate form an isolation chamber in the charging gun plug. During the process of the temperature rise caused by the large current passing through the charging head, the heat radiation from the high-temperature charging head to the electronic components at the rear is blocked, thereby providing a stable environment for the operation of the electronic components. At the same time, the docking component and the separation component are arranged between the fixing plate and the positioning plate, which simplifies the maintenance of coolant leakage, reduces the risk of silicone oil leakage directly invading the electronic components, and improves the stability of the equipment. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the flow control valve part of the present invention;

[0029] Figure 3 This is a schematic diagram of the toothed plate portion of the present invention;

[0030] Figure 4 This is a schematic diagram of the structure of the movable plate part of the present invention;

[0031] Figure 5 For the present invention Figure 4 Enlarged diagram of point A in the diagram;

[0032] Figure 6 This is a schematic diagram of the docking component of the present invention;

[0033] Figure 7This is a schematic diagram of the structure of the separation component part of the present invention;

[0034] Figure 8 This is a schematic diagram of the state of the separation component of the present invention after it has been opened.

[0035] In the diagram: 1. Charging gun handle; 2. Charging gun plug; 3. Locking component; 4. Electronic component; 5. Flow control valve; 501. Valve seat; 502. Toothed plate; 5021. Through hole; 503. Toothed rack; 5031. Paddle; 504. Spring; 505. Slider; 5051. Slide groove; 5052. Spring leaf; 6. Feed pipe; 7. Discharge pipe; 8. Guide pipe; 9. Docking assembly; 901. Fixing plate; 902. Base; 903. Push bladder; 10. Separation assembly; 1001. Positioning plate; 1002. Mounting base; 1003. Top bladder; 11. Movable plate; 1101. Limiting groove; 12. Charging head. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings, so as to provide a more detailed description of their working state and structural features. Obviously, the described embodiments are only some embodiments of the present invention and not complete embodiments. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative effort are all within the protection scope of the present invention.

[0037] Please see Figures 1 to 8 This invention provides a multi-cavity integrated cooling gun head, the technical solution of which is as follows:

[0038] For details, please refer to Figures 1 to 8A multi-cavity integrated cooling gun head is installed on a charging pile. A cable is connected to the charging pile, and the gun head is connected to the cable. The gun head includes a charging gun handle 1, a charging gun plug 2, a locking component 3, and electronic components 4. The charging gun plug 2 is connected to the left side of the charging gun handle 1, and a sealing ring is provided on the connection surface between the charging gun handle 1 and the charging gun plug 2. The locking component 3 is connected to the upper side of the charging gun handle 1, and the electronic components 4 are connected to the inner cavity of the charging gun handle 1. The locking component 3 is used to lock with the electric vehicle charging port. After locking, the position between the gun head and the electric vehicle charging port is relatively fixed, and the gun head cannot move. The gun head also includes a flow regulating valve 5, a feed pipe 6, a discharge pipe 7, and a guide pipe 8. The components include docking assembly 9, separation assembly 10, movable plate 11, and charging head 12. A flow control valve 5 is connected to the right side of the inner cavity of the charging gun plug 2. The coolant in the charging pile is silicone oil. The left ends of the inlet pipe 6 and outlet pipe 7 are both connected to the right side of the flow control valve 5, and a guide pipe 8 is connected to the left side of the flow control valve 5. The guide pipe 8 is made of hard metal. The right ends of the inlet pipe 6 and outlet pipe 7 are connected to the charging pile. The silicone oil is pumped through the charging pile; that is, the charging pile delivers the silicone oil to the inlet pipe 6, and the silicone oil then flows through the flow control valve 5 to the guide pipe 8. The other end of the guide pipe 8 is connected to the flow control valve 5, and then the guide pipe 8 delivers the silicone oil to the flow control valve 5, which then delivers the silicone oil to the outlet pipe 7. The guide tube 8 is wound around the charging head 12. When the silicone oil flows in the guide tube 8, it can carry away the heat on the charging head 12. The silicone oil keeps the flow regulating valve 5, the feed pipe 6, and the discharge pipe 7 full. The docking component 9 is connected to the feed pipe 6. When the silicone oil flows normally, the docking component 9 will not be driven. The separation component 10 is connected to the guide tube 8. When the silicone oil flows normally, the separation component 10 will not be driven. The movable plate 11 is slidably connected to the inner cavity of the charging gun plug 2. The movable plate 11 is located between the docking component 9 and the separation component 10. The docking component 9 and the separation component 10 are selectively driven, that is, they work alternately and will not be driven at the same time. The charging head 12 is connected to the left side of the movable plate 11. On the side, the charging head 12 moves with the movable plate 11. The locking member 3 fixes the charging gun plug 2 to the electric vehicle charging port. When transmitting power, the flow regulating valve 5 seals the coolant from the charging pile in the feed pipe 6. Under the continuous action of the liquid pump, the liquid pressure in the feed pipe 6 increases, thereby driving the docking assembly 9 to expand, which in turn pushes the movable plate 11 and drives the charging head 12 to move to the left and insert into the electric vehicle charging port. When pulling out, the flow regulating valve 5 switches the liquid path and seals the coolant in the guide pipe 8. The pressure in the guide pipe 8 increases, driving the top bladder 1003 in the separation assembly 10 to expand. The top bladder 1003 pushes the movable plate 11 and drives the charging head 12 to move to the right and separate from the electric vehicle charging port.

[0039] By setting the flow regulating valve 5, the flow regulating valve 5 can block the flow of silicone oil in the feed pipe 6 or the guide pipe 8, so that the silicone oil accumulates in the docking component 9 or the separation component 10. When the silicone oil accumulates in the docking component 9, the docking component 9 can push the movable plate 11 to the left. The movement of the movable plate 11 causes the charging head 12 to move to the left relative to the charging gun plug 2. Then, after the locking member 3 fixes the gun head (the charging gun plug 2 without the charging head 12, i.e., the charging head 12 is not extended) to the electric vehicle charging port, the charging head 12 extends out from the inner cavity of the charging gun plug 2 and is inserted into the electric vehicle charging port. Through the segmented insertion, the resistance during insertion is effectively reduced. When the silicone oil accumulates in the separation component 10, the separation component 10 pushes the movable plate 11 to the right, which in turn causes the charging head 12 to move to the right and separate from the electric vehicle charging port. At this time, the charging gun plug 2 and the charging head 12 separate from the electric vehicle charging port one after the other, thus effectively reducing the resistance when the gun head is pulled out.

[0040] As one embodiment of the present invention, refer to Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 8The flow control valve 5 includes a valve seat 501, a toothed plate 502, a rack 503, a spring 504, and a slider 505. The valve seat 501 is fixedly connected to the inner cavity of the charging gun plug 2. The toothed plate 502 is rotatably connected to the valve seat 501, with both sides of the toothed plate 502 in contact with the valve seat 501. A sealing ring is provided on the contact surface between the valve seat 501 and the toothed plate 502 to prevent silicone oil leakage. The rack 503 is meshed with the upper side of the toothed plate 502, with both ends of the rack 503 extending out of the charging gun plug 2. A lever 5031 is connected to both ends of the rack 503. The user can convert the pressing action into driving the rack 503 to move back and forth using the two levers 5031. When the rack 503 moves, it drives the toothed plate 502 to rotate. Both sides of the rack 504 are connected to... A spring 504 is attached, with its other end connected to the inner wall of the charging gun plug 2. When the rack 503 is pushed forward or backward, one spring 504 will open and the other spring 504 will contract. When the rack 503 is released, the elastic restoring force generated by the two springs 504 will cause the rack 503 to return to its original position. Two through holes 5021 are opened on the surface of the toothed plate 502. When the toothed plate 502 rotates, it will cause the through holes 5021 to rotate. The feed pipe 6 and the discharge pipe 7 are both connected to the right side of the valve seat 501, and both ends of the guide pipe 8 are connected to the left side of the valve seat 501. The positions of the feed pipe 6 and the discharge pipe 7 correspond to the positions of the two ends of the guide pipe 8, and the positions of the two through holes 5021 correspond to the positions of the guide pipe 8 and the discharge pipe 7, that is, on the toothed plate 502... When stationary, the silicone oil can be returned via the charging pile, feed pipe 6, flow regulating valve 5, guide pipe 8, discharge pipe 7, and charging pile. The angle between the center of the two through holes 5021 and the axis of the toothed plate 502 is 120°. When the rack 503 moves to its limit position, it drives the toothed plate 502 to rotate 120° in one direction. Therefore, when the rack 503 moves forward, it drives the toothed plate 502 to rotate 120° counterclockwise, causing the through hole 5021 on the front side to rotate to the position of the discharge pipe 7. At this time, the side wall of the toothed plate 502 closes the end of the feed pipe 6, and the silicone oil delivered by the charging pile accumulates in the feed pipe 6. Since the docking assembly 9 is set on the feed pipe 6, the silicone oil flows into the docking assembly 9, causing the docking assembly 9 to... The movable plate 11 is opened, pushing it to move to the left, so that the charging head 12 aligns with the car charging port. The slider 505 is connected to the upper side of the rack 503. The inner diameters of the feed pipe 6, the discharge pipe 7, and the guide pipe 8 are the same. The diameter of the through hole 5021 is larger than the inner diameter of the feed pipe 6, thereby reducing the fit error between the through hole 5021 and the feed pipe 6, the discharge pipe 7, and the guide pipe 8, achieving the goal of reducing production costs. Limiting grooves 1101 are provided on the front and rear sides of the bottom of the movable plate 11. The distance between the front and rear sides of the limiting groove 1101 is greater than the maximum distance between the front and rear sides of the slider 505, allowing the slider 505 to pass through the limiting groove 1101. The front and rear sides of the slider 505 are inclined, and springs 5052 are connected to the right ends of the front and rear sides of the slider 505.The spring 5052 faces the movable plate 11. The movable plate 11 has a chamfer on the side adjacent to the limiting groove 1101. The top of the slider 505 has a sliding groove 5051, the width of which is greater than the thickness of the movable plate 11. Therefore, during the movement of the movable plate 11 into the sliding groove 5051, the friction between the movable plate 11 and the sliding groove 5051 is effectively reduced. After the movable plate 11 is engaged in the sliding groove 5051, the spring 5052 is compressed. After the movable plate 11 moves out of the sliding groove 5051, the spring 5052 pushes the movable plate 11 to the left.

[0041] By setting the flow regulating valve 5, during the unplugging stage after charging is complete, it is only necessary to push the slider 505 to move via the rack 503, so that the slider 505 moves to the limiting groove 1101, thereby making way for the movement of the movable plate 11. At this time, the pressure on the rack 503 can be released, and the flow regulating valve 5 introduces coolant into the separation component 10. The top bladder 1003 expands and generates thrust, which acts on the movable plate 11, pushing the movable plate 11 to the right, thereby driving the charging head 12 to retract. The high friction of retracting the charging head 12 is borne by the liquid pressure, thus achieving the purpose of saving manpower. At the same time, the movable plate 11 can push the slider 505 to move through the cooperation of the limiting groove 1101 and the inclined wall of the slider 505, so that the user does not need to press for a long time. Pressing the paddle 5031, and simultaneously, the single pressing time of the rack 503 is short, effectively improving the convenience of operation. Before charging (charging head 12 retracted), for some people, labor-saving operation is not required, but charging efficiency needs to be improved. At this time, by pressing the rack 503 during the process of pulling the charging gun to the car charging port, the slider 505 moves to the limit groove 1101. At this time, the spring 5052 pushes the movable plate 11 forward, so that the movable plate 11 moves to the side wall of the slider 505. The spring 504 drives the rack 503 to reset, thereby causing the movable plate 11 to move forward and reset. At the same time, the rack 502 can be manually pressed to reset, thereby accelerating the reset speed of the movable plate 11 driving the charging head 12.

[0042] As one embodiment of the present invention, refer to Figure 6 , Figure 7 and Figure 8The docking assembly 9 includes a fixing plate 901, a base 902, and a pusher 903. The fixing plate 901 is connected to the right end of the inner cavity of the charging gun plug 2. Sealant is applied to the connecting surface between the fixing plate 901 and the inner cavity of the charging gun plug 2, forming a barrier when they are connected. The base 902 is connected to the feed tube 6 and is also connected to the fixing plate 901. The fixed end of the pusher 903 is connected to the base 902, and the pusher 903 communicates with the inner cavity of the base 902. The inner cavity of the base 902 is also connected to the feed tube 6. The pusher 903 has both a contracted and an open state. The movable end of the pusher 903... When the pusher 903 is in an open position facing the movable plate 11, the movable end of the pusher 903 pushes the movable plate 11 to the left. When the slider 505 engages with the rear limiting groove 1101, the movable end of the pusher 903 is in contact with the right end of the slider 505. At this time, the pusher 903 cannot expand, thus limiting the pusher 903 and facilitating the collection of silicone oil into the separation assembly 10. The separation assembly 10 includes a positioning plate 1001, a mounting base 1002, and a top bladder 1003. The positioning plate 1001 is connected to the inner cavity of the charging gun plug 2. The connection surface between the positioning plate 1001 and the inner cavity of the charging gun plug 2 is coated with sealant. When connected to the inner cavity of the charging gun plug 2, a partition is formed, and the positioning plate 1001 is located to the left of the fixing plate 901. The mounting base 1002 is connected to the guide tube 8, and the fixed end of the top bladder 1003 is connected to the mounting base 1002. The top bladder 1003 is connected to the inner cavity of the mounting base 1002, and the inner cavity of the mounting base 1002 is connected to the guide tube 8. The movable end of the top bladder 1003 faces the movable plate 11. Both the push bladder 903 and the top bladder 1003 are integrally molded from oil-resistant, highly elastic, and high-temperature resistant fluororubber material. Both the push bladder 903 and the top bladder 1003 include a contracted shape and an open shape. The longitudinal section of the open top bladder 1003 is shown. The corrugated structure allows the pusher 903 and top 1003 to extend axially under internal pressure, generating thrust. After the pusher 903 and top 1003 finish working, they can return to their original contracted state by their own elasticity. The rated flow rate of the silicone oil pumped by the charging pile is not less than 2 liters / minute to ensure that the pusher 903 and top 1003 can complete the expansion stroke within 2 seconds. When the flow regulating valve 5 switches the liquid circuit, the pressure is sufficient to make the pusher 903 or top 1003 generate a thrust greater than 100N. The movable ends of the pusher 903 and top 1003 are thickened flat thrust surfaces for contacting the movable plate 11.

[0043] By setting the docking component 9 and the separation component 10, the fixing plate 901 and the positioning plate 1001 form an isolation chamber in the charging gun plug 2. During the process of the temperature rise of the charging head 12 due to the passage of a large current, the isolation chamber formed by the fixing plate 901 and the positioning plate 1001 is located between the charging head 12 and the electronic component 4. The silicone oil flowing in the guide pipe 8 reduces the temperature of the isolation chamber, thereby reducing the heat radiation generated from the high-temperature charging head 12 to the right electronic component 4, thus providing a stable environment for the operation of the electronic component 4. At the same time, the docking component 9 and the separation component 10 are arranged in the isolation chamber, which simplifies the maintenance of coolant leakage, thereby reducing the risk of silicone oil leakage directly invading the electronic component 4 and improving the stability of the equipment.

[0044] When inserting the charging gun (at this time, the charging pile is not supplying silicone oil), press the back side of the lever 5031 to make the rack 503 move forward and the toothed plate 502 rotate counterclockwise. At this time, the through hole 5021 located on the front side rotates to the discharge pipe 7, while the outlet of the feed pipe 6 is closed by the toothed plate 502. The slider 505 moves to the limiting groove 1101 on the front side and inserts the charging gun plug 2 into the car charging port. At this time, since the movable plate 11 loses its limit, it can move freely. When docking, the charging head 12 moves relative to the position of the charging gun plug 2 under the action of the friction resistance of the car charging port. That is, the charging gun plug 2 docks with the car charging port, and the charging head 12 retracts into the inner cavity of the charging gun plug 2. The charging gun plug 2 is fixed by the locking member 3.

[0045] After the locking component 3 fixes the charging gun plug 2, the charging pile delivers liquid through the inlet of the feed pipe 6. The silicone oil flows into the feed pipe 6. Since the feed pipe 6 and the guide pipe 8 are separated by the toothed plate 502, the silicone oil accumulates in the feed pipe 6. The docking component 9 is set before the outlet of the feed pipe 6, so the accumulated silicone oil flows into the docking component 9, causing the pusher 903 to expand under pressure. The movable end of the pusher 903 will push the movable plate 11 to the left, so that the movable plate 11 will drive the charging head 12 to be inserted into the vehicle charging port. At this time, the electronic component 4 receives the docking signal and sends a status request to the charging pile. After the system or user confirms, charging can start.

[0046] During charging, the two through holes 5021 of the toothed plate 502 are connected to the feed pipe 6 and the discharge pipe 7 respectively. At this time, the silicone oil from the charging pile enters the flow regulating valve 5 through the feed pipe 6 and is guided to the guide pipe 8. The guide pipe 8 is arranged around the outside of the charging head 12. The coolant flowing through it will continuously absorb the heat generated by the large current passing through the charging head 12. Then the coolant enters the discharge pipe 7 through the flow regulating valve 5 and returns to the charging pile for cooling. During this stage, the push bladder 903 and the top bladder 1003 do not receive liquid and are in a contracted state. The movable plate 11 remains stationary.

[0047] When charging is complete, the charging head 12 expands due to heat, increasing the friction with the car charging port. At this time, the force required to pull out the charging head increases significantly. By pressing the front of the paddle 5031, the rack 503 moves backward, and the toothed plate 502 rotates clockwise. The through hole 5021 on the rear side rotates to the position where it connects with the feed pipe 6, while the outlet of the guide pipe 8 is sealed by the toothed plate 502. At this time, silicone oil accumulates in the guide pipe 8. Since the separation component 10 is set on the guide pipe 8, the silicone oil is introduced into the top bladder 1003 of the separation component 10, causing the top bladder 1003 to expand. The expanding top bladder 1003 generates a thrust on the movable plate 11, causing the movable plate 11 to drive the charging head 12 to move to the right. Since the locking member 3 fixes the charging gun plug 2, the charging head 12 retracts into the inner cavity of the charging gun plug 2. At this time, the user unlocks the locking member 3, thereby significantly reducing the force required to pull out the charging gun.

[0048] Although embodiments of the invention have been described, those skilled in the art can make variations and modifications to the embodiments with an understanding of the principles and spirit of the invention, and other effects can be obtained. The scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A multi-cavity integrated cooling gun head, installed on a car charging station, comprising a charging gun handle (1), a charging gun plug (2), a locking component (3), and electronic components (4), characterized in that: It also includes a flow control valve (5), a feed pipe (6), a discharge pipe (7), a guide pipe (8), a docking assembly (9), a separation assembly (10), a movable plate (11), and a charging head (12). The flow control valve (5) is connected to the right side of the inner cavity of the charging gun plug (2). The feed pipe (6) and the discharge pipe (7) are both connected to the right side of the flow control valve (5). The guide pipe (8) is connected to the left side of the flow control valve (5). The docking assembly (9) is connected to the feed pipe (6). The separation assembly (10) is connected to the guide pipe (8). The movable plate... (11) It is slidably connected to the inner cavity of the charging gun plug (2), and the movable plate (11) is set between the docking assembly (9) and the separation assembly (10). The charging head (12) is connected to the left side of the movable plate (11). The locking member (3) first fixes the charging gun plug (2) to the electric vehicle charging port. When transmitting power, the flow regulating valve (5) drives the docking assembly (9) to move the charging head (12) to the left through the feed pipe (6). When disconnected, the flow regulating valve (5) drives the separation assembly (10) to move the charging head (12) to the right through the guide pipe (8).

2. The multi-cavity integrated cooling gun head according to claim 1, characterized in that: The flow control valve (5) includes a valve seat (501), a toothed plate (502), a rack (503), a spring (504), and a slider (505). The valve seat (501) is fixedly connected to the inner cavity of the charging gun plug (2). The toothed plate (502) is rotatably connected to the valve seat (501). The rack (503) is meshed with the upper side of the toothed plate (502). Springs (504) are connected to both sides of the rack (503), and the other end of the springs (504) is connected to the inner wall of the charging gun plug (2). Two through holes (5021) are opened on the surface of the toothed plate (502), and the included angle between the center of the two through holes (5021) and the axis of the toothed plate (502) is 120°. The rack (503) drives the toothed plate (502) to rotate unidirectionally by an angle of 120°. The slider (505) is connected to the upper side of the rack (503).

3. The multi-cavity integrated cooling gun head according to claim 2, characterized in that: The inner diameters of the feed pipe (6), the discharge pipe (7), and the guide pipe (8) are the same, and the diameter of the through hole (5021) is greater than the inner diameter of the feed pipe (6).

4. The multi-cavity integrated cooling gun head according to claim 2, characterized in that: Limiting grooves (1101) are provided on the front and rear sides of the bottom of the movable plate (11), the front and rear sides of the slider (505) are inclined, and a sliding groove (5051) is provided on the top of the slider (505). The width of the sliding groove (5051) is greater than the thickness of the movable plate (11).

5. A multi-cavity integrated cooling gun head according to claim 4, characterized in that: The docking assembly (9) includes a fixing plate (901), a base (902), and a pusher (903). The fixing plate (901) is connected to the right end of the inner cavity of the charging gun plug (2). The base (902) is connected to the feed tube (6). One end of the pusher (903) is fixedly connected to the base (902). The other end of the pusher (903) is not fixed and faces the movable plate (11). When the slider (505) is engaged with the rear limiting groove (1101), the movable end of the pusher (903) is in contact with the right end of the slider (505).

6. The multi-cavity integrated cooling gun head according to claim 5, characterized in that: The separation assembly (10) includes a positioning plate (1001), a mounting base (1002), and a top bladder (1003). The positioning plate (1001) is connected to the inner cavity of the charging gun plug (2) and is located on the left side of the fixing plate (901). The mounting base (1002) is connected to the guide tube (8). One end of the top bladder (1003) is fixedly connected to the mounting base (1002), and the other end of the top bladder (1003) is not fixed and faces the movable plate (11).

7. A multi-cavity integrated cooling gun head according to claim 4, characterized in that: The slider (505) has a spring (5052) connected to the right end of both the front and rear sides, and the movable plate (11) has a chamfer on the adjacent side of the limiting groove (1101).

8. A multi-cavity integrated cooling gun head according to claim 6, characterized in that: Both the push bag (903) and the top bag (1003) include a contracted state and an open state, and the longitudinal cross section of the open top bag (1003) is corrugated.

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