Electric vehicle water-cooling charging system

Abstract

The utility model relates to the technical field of new energy automobiles, in particular to an electric car water cooling charging system which comprises a charging butt joint part and an electric car butt joint part, the charging butt joint part comprises a charging butt joint shell, the electric car butt joint part comprises an electric car butt joint shell, and a cooling butt joint mechanism is arranged between the charging butt joint shell and the electric car butt joint shell. The cooling butt-joint mechanism comprises a first water flow channel, a cooling driving part, a second water flow channel and an electric vehicle cooling part, the first water flow channel is formed in the charging butt-joint shell, the cooling driving part is in sealed sliding connection with the charging butt-joint shell, and the second water flow channel is formed in the electric vehicle butt-joint shell; the electric car cooling component is in sealed sliding connection with the electric car butt joint shell, the charging butt joint shell is in butt joint with the electric car butt joint shell, and the charging cooling driving component is in butt joint extrusion with the electric car cooling component, so that communication of the first water flow channel and the second water flow channel is achieved. The utility model has the advantages of good sealing performance, timely cooling, no water leakage, few components, low use cost and stable and reliable butt joint.

Description

Technical Field

[0001] This utility model relates to the field of new energy vehicle technology, specifically to a water-cooled charging system for electric vehicles. Background Technology

[0002] As an energy storage device, the power battery is the most critical core component of a pure electric vehicle. Its performance and lifespan directly determine the performance of the electric vehicle. To ensure the driving range, while increasing the capacity of individual battery cells, these cells need to be tightly arranged into battery packs through series and parallel connections. When an electric vehicle operates under different driving conditions, the power battery will charge and discharge at different rates, generating a large amount of heat. If the power battery is then fast-charged, the large amount of heat generated during fast charging will affect the safety of the power battery. The accumulation of heat within a power battery, if not dissipated promptly, will lead to uneven heat buildup over time and due to spatial structural factors. This results in uneven battery temperature, performance differences between cells, decreased battery performance, shortened lifespan, and in severe cases, even spontaneous combustion. A search reveals Chinese patent CN113320441A, which discloses a coolant transfer gun for charging piles. The gun includes a gun housing and a gun-end connector mounted on the housing. The gun-end connector connects to the car charging pile via two independent water pipes. A vehicle-end connector is installed on the vehicle. The connection between the gun-end connector and the vehicle-end connector allows coolant to circulate between the car charging pile and the car battery pack. The connector outer sleeve is equipped with an unlocking pull ring for locking the vehicle end connector. The unlocking pull ring is movable under force and unlocks from the vehicle end connector. The inner wall of the unlocking pull ring has a stepped actuating surface. A locking ball is positioned between the actuating surface and the outer wall of the gun end connector. The gun end connector has a slot, through which the locking ball can extend. The outer circumferential surface of the vehicle end connector has a retaining groove corresponding to the slot. The actuating surface can push the locking element out of the slot and into the retaining groove. A locking spring is provided between the unlocking pull ring and the gun end connector. The locking spring is in a compressed state, and the force applied by the locking spring causes the unlocking pull ring to push the locking ball out of the slot. The device also includes a microswitch for controlling the coolant, which is installed inside the gun end connector.

[0003] The shortcomings of the aforementioned patents are as follows: First, the quick-connect fittings in the aforementioned patents use a microswitch to control the flow of coolant. If the microswitch malfunctions or there is a signal delay, it cannot control the coolant in time, resulting in insufficient coolant supply. Alternatively, if the fitting is not connected, coolant may overflow from the quick-connect fitting, causing leakage. Second, the quick-connect fittings in the aforementioned patents have a complex structure and many components. Third, the locking ball in the aforementioned patents is controlled by a locking spring. The locking spring is prone to failure during long-term use, causing the locking ball to fail to lock, which in turn leads to the failure of the fitting between the vehicle end fitting and the quick-connect fitting. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies and provide a water-cooled charging system for electric vehicles that features an ingenious structure, good sealing, timely cooling, no water leakage, fewer components, low operating costs, and stable and reliable connection.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A water-cooled charging system for electric vehicles includes a charging docking part and an electric vehicle docking part, which are connected to achieve charging. The charging docking part includes a charging docking housing, and the electric vehicle docking part includes an electric vehicle docking housing. A cooling docking mechanism is provided between the charging docking housing and the electric vehicle docking housing. The cooling docking mechanism includes a first water flow channel, a cooling drive component, a second water flow channel, and an electric vehicle cooling component. The charging docking housing contains the first water flow channel, and the cooling drive component passes through the first water flow channel. The cooling drive component is slidably and sealed to the charging docking housing. The electric vehicle docking housing contains the second water flow channel, and the electric vehicle cooling component passes through the second water flow channel. The electric vehicle cooling component is slidably and sealed to the electric vehicle docking housing. When the charging docking housing and the electric vehicle docking housing are connected, the charging cooling drive component and the electric vehicle cooling component are pressed together, thereby connecting the first water flow channel and the second water flow channel. This allows the charging docking part and the electric vehicle docking part to be independently sealed before or after connection, and after connection, they form a water flow channel.

[0007] The cooling drive component of this utility model includes a first plug and a first spring. The charging docking housing is provided with a charging cooling slot, and a cooling drive plug is provided at intervals in the charging cooling slot. The cooling drive plug is fixedly connected to the inner wall of the charging docking housing. The cooling drive plug is provided with a first water flow channel. The first plug passes through the cooling drive plug, and a first spring is sleeved on the first plug. One end of the first plug extends out of the cooling drive plug to form a compression drive end, and the other end of the first plug is slidably connected to the inner wall of the cooling drive plug. One end of the first plug is sealed to the cooling drive plug so as to facilitate the sealing between the first plug and the cooling drive plug by the first spring.

[0008] In this invention, the first spring has a first stop block at one end and a first guide block at the other end. The first stop block is fixedly connected to the first plug. The first guide block has a guide hole in the axial direction and water holes spaced apart on the first guide block. The outer wall of the first guide block is fixedly connected to the inner wall of the first water flow channel. The first plug passes through the guide hole and is slidably connected to the first guide block. One end of the first spring abuts against the first stop block and the other end abuts against the first guide block, so as to facilitate the first spring being limited by the first stop block and the first guide block.

[0009] The tram cooling component of this utility model includes a second plug and a second spring. A tram cooling socket is provided inside the tram docking housing. Tram cooling docking slots are spaced apart on the tram cooling socket. The cooling drive plug is inserted into the tram cooling docking slot. A second water flow channel is provided on the side of the tram cooling docking slot away from the cooling drive plug. A plug through hole is provided at the bottom of the tram cooling docking slot. The tram cooling docking slot is connected to the second water flow channel through the plug through hole. A second plug is inserted into the second water flow channel. A second spring is fitted onto the second plug. One end of the second plug protrudes from the plug through hole and is placed inside the tram cooling slot to form a docking end. The second plug is sealed to the plug through hole. The other end of the second plug is slidably connected to the inner wall of the second water flow channel, so that after the cooling drive plug is inserted into the tram cooling docking slot, the first plug and the second plug are pressed together, thus connecting the first water flow channel and the second water flow channel.

[0010] The second spring of this invention has a second stop block at one end and a second guide block at the other end. The second stop block is fixedly connected to the second plug. The second guide block has a guide hole in the axial direction and water holes spaced apart on the second guide block. The outer wall of the second guide block is fixedly connected to the inner wall of the second water flow channel. The second plug passes through the guide hole and is slidably connected to the second guide block. One end of the second spring abuts against the second stop block and the other end abuts against the second guide block, so as to facilitate the second spring being limited by the second stop block and the second guide block.

[0011] The present invention provides a docking locking mechanism between the charging docking housing and the trolley docking housing. The docking locking mechanism includes an elastic locking block, a locking sleeve, an elastic pressure block, and a locking spring. The outer wall of the charging docking housing is provided with an elastic locking block. A locking slot is provided between the trolley cooling socket and the trolley docking housing. The outer wall of the trolley cooling socket is provided with an unlocking channel. The outer wall of the trolley docking housing is provided with a locking sleeve and an elastic pressure block. The end of the trolley docking housing facing the charging docking housing is a limiting end.

[0012] One end of the elastic pressure block is fixedly connected to the outer wall of the tram docking housing, and the other end moves towards the unlocking channel after being squeezed by the locking sleeve. The locking sleeve is fitted onto the limiting end of the tram docking housing, and the locking sleeve is slidably connected to the outer wall of the tram docking housing via a locking spring. The charging docking housing is inserted into the locking slot, and the elastic locking block squeezes the elastic pressure block, hooking the limiting end of the tram docking housing to lock the charging docking housing and the tram docking housing together. This facilitates unlocking by moving the locking sleeve towards the elastic pressure block, which in turn squeezes the elastic pressure block, which in turn squeezes the elastic locking block. The elastic locking block moves into the unlocking channel, separating the elastic locking block from the limiting end of the tram docking housing, thereby pulling the charging docking housing out of the locking slot of the tram docking housing.

[0013] The trolley docking housing of this utility model has a positioning plate on its outer wall, which is fixedly connected to the trolley docking housing. The positioning plate has a rod hole, and an unlocking rod is provided on one side of the trolley docking housing. A locking spring is sleeved on the unlocking rod. The unlocking rod passes through the locking spring and the rod hole and is fixedly connected to the locking sleeve. The unlocking rod is slidably connected to the positioning plate. One end of the locking spring abuts against a button fixed on the unlocking rod, and the other end abuts against the positioning plate. By pressing the button, the button pushes the unlocking rod to move, and the unlocking rod drives the locking sleeve to move, thereby unlocking.

[0014] The inner diameter of the locking sleeve of this utility model gradually increases from the limiting end of the trolley docking housing towards the elastic pressure block, so as to facilitate the movement of the locking sleeve towards the elastic pressure block and to fit onto the elastic pressure block.

[0015] The present invention describes a charging docking part and an electric vehicle docking part, both equipped with a docking charging mechanism. The docking charging mechanism includes a charging pile, a docking plug, an electric vehicle battery, and a docking socket. The charging docking part further includes a charging pile with a power supply system. A docking plug is located inside the charging docking housing and is fixedly connected to the charging docking housing. The docking plug is connected to the power supply system via a wire. The electric vehicle docking part includes an electric vehicle battery. A docking socket is located inside the electric vehicle docking housing and is fixedly connected to the electric vehicle docking housing. The docking socket is connected to the electric vehicle battery via a wire. The charging docking housing docks with the electric vehicle docking housing, and the docking plug and docking socket are connected for charging.

[0016] The charging docking housing of this invention has a partition plate inside, and the partition plate is fixedly connected to the charging docking housing.

[0017] The partition plate divides the interior of the charging docking housing into a charging area and a cooling area. The docking plug is located in the charging area, and the cooling drive plug is located in the cooling area. The trolley docking housing is provided with a partition plate slot, which divides the interior of the trolley docking housing into a charging docking area and a cooling docking area. The docking socket is located in the charging docking area, and the trolley cooling socket is located in the cooling docking area. The partition plate and the partition plate slot are inserted into each other. The charging area and the charging docking area cooperate to form a charging compartment, and the cooling area and the cooling docking area cooperate to form a cooling compartment. This facilitates the separation of the docking charging mechanism and the cooling docking mechanism through the partition plate and the partition plate slot. The two compartments are separated from each other and do not affect each other.

[0018] The present invention provides a cooling zone with an inlet cooling drive plug and an outlet cooling drive plug. The charging pile contains a circulating water pump and a water tank. The inlet of the circulating water pump is connected to the water tank via a water pipe, and the outlet of the circulating water pump is connected to the inlet cooling drive plug via a water pipe. The outlet cooling drive plug is connected to the water tank via a water pipe. The cooling docking zone contains an inlet electric vehicle cooling docking slot and an outlet electric vehicle cooling docking slot. The inlet electric vehicle cooling docking slot docks with the inlet cooling drive plug, and the outlet electric vehicle cooling docking slot docks with the outlet cooling drive plug. The electric vehicle battery is equipped with a cooling component. The inlet end of the cooling component is connected to the inlet electric vehicle cooling docking slot via a water pipe, and the outlet end of the cooling component is connected to the outlet electric vehicle cooling docking slot via a water pipe, facilitating the delivery of cooling water to the battery via the water pump.

[0019] The cooling component of this utility model is a cooling water pipe or a heat dissipation water baffle. The cooling water pipe is wound and fixed on the electric vehicle battery, and the electric vehicle battery is surrounded by the heat dissipation water baffle, which is fixedly connected to the electric vehicle battery.

[0020] The present invention provides temperature-sensitive burst heads at intervals inside the cooling water pipe and the heat dissipation baffle, so that when the battery temperature rises abnormally, the temperature-sensitive burst heads will explode, continuously cooling the battery and preventing the battery from spontaneously combusting.

[0021] The water pipe connecting the water outlet cooling drive plug to the water tank in this invention is equipped with a temperature sensor to monitor the temperature at the battery outlet in real time, so that charging can be stopped when a certain temperature value is exceeded.

[0022] This utility model, due to the above-mentioned structure, has the advantages of ingenious structure, good sealing, timely cooling, no water leakage, fewer parts, low cost of use, and stable and reliable connection. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model.

[0024] Figure 2 This is an enlarged schematic diagram of the connection between the charging docking housing and the tram docking housing of this utility model.

[0025] Figure 3 This is a utility model Figure 2 A sectional view.

[0026] Figure 4 This is an enlarged schematic diagram of the charging docking housing in this utility model.

[0027] Figure 5 This is a cross-sectional view of the charging docking housing at one angle in this utility model.

[0028] Figure 6This is a cross-sectional view of the charging docking housing from another angle in this utility model.

[0029] Figure 7 This is an enlarged schematic diagram of the first guide block in this utility model.

[0030] Figure 8 This is an enlarged schematic diagram of the tram docking housing in this utility model.

[0031] Figure 9 This is a cross-sectional view of the tram docking housing at one angle in this utility model.

[0032] Figure 10 This is a cross-sectional view of the tram docking housing from another angle in this utility model.

[0033] Figure 11 This is an enlarged schematic diagram of the charging pile in this utility model.

[0034] Figure 12 This is a schematic diagram of the cooling water pipe wrapped around the electric vehicle battery when used in this utility model.

[0035] Figure 13 This is a schematic diagram of the cooling water baffle fixed on the electric vehicle battery when used in this utility model.

[0036] Figure 14 These are schematic diagrams showing several different layouts inside the charging docking housing of this utility model.

[0037] The diagram shows: 1. Charging docking part; 2. Tram docking part; 3. Charging docking housing; 4. Tram docking housing; 5. Cooling docking mechanism; 6. First water flow channel; 7. Cooling drive component; 8. Second water flow channel; 9. Tram cooling component; 10. First plug; 11. First spring; 12. Charging cooling slot; 13. Cooling drive plug; 14. First stop; 15. First guide block; 16. Guide hole; 17. Water hole; 18. Second plug; 19. Second spring; 20. Tram cooling socket; 21. Tram cooling docking slot; 22. Second stop; 23. Second guide block; 23. Dock locking mechanism. Component 24, elastic locking block 25, locking sleeve 26, elastic pressure block 27, locking spring 28, locking slot 29, unlocking channel 30, positioning plate 31, unlocking rod 32, docking charging mechanism 34, charging pile 35, docking plug 36, electric vehicle battery 37, docking socket 38, power supply system 39, partition plate 40, partition plate slot 41, water inlet cooling drive plug 42, water outlet cooling drive plug 43, circulating water pump 33, water outlet electric vehicle cooling docking slot 45, cooling water pipe 46, temperature sensing burst head 47, heat dissipation water baffle 48, temperature sensor 49. Detailed Implementation

[0038] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0039] A water-cooled charging system for electric vehicles includes a charging docking part 1 and an electric vehicle docking part 2, which are connected to achieve charging. The charging docking part 1 includes a charging docking housing 3, and the electric vehicle docking part 2 includes an electric vehicle docking housing 4. A cooling docking mechanism 5 is provided between the charging docking housing 3 and the electric vehicle docking housing 4. The cooling docking mechanism 5 includes a first water flow channel 6, a cooling drive component 7, a second water flow channel 8, and an electric vehicle cooling component 9. The first water flow channel 6 is provided inside the charging docking housing 3, and a cooling drive component passes through the first water flow channel 6. Component 7, the cooling drive component 7 is sealed and slidably connected to the charging docking housing 3, the tram docking housing 4 is provided with a second water flow channel 8, the second water flow channel 8 is provided with a tram cooling component 9, the tram cooling component 9 is sealed and slidably connected to the tram docking housing 4, the charging docking housing 3 docks with the tram docking housing 4, the charging cooling drive component 7 docks and squeezes with the tram cooling component 9, realizing the connection between the first water flow channel 6 and the second water flow channel 8, so as to facilitate the independent sealing of the charging docking part and the tram docking part when not docked or after docking, and the formation of a water flow channel after docking.

[0040] The cooling drive component 7 of this invention includes a first plug 10 and a first spring 11.

[0041] The charging docking housing 3 is provided with a charging cooling slot 12, and a cooling drive plug 13 is provided in the charging cooling slot 12 at intervals. The cooling drive plug 13 is fixedly connected to the inner wall of the charging docking housing 3. The cooling drive plug 13 is provided with a first water flow channel 6. A first plug 10 is inserted into the cooling drive plug 13. A first spring 11 is sleeved on the first plug 10. One end of the first plug 10 extends out of the cooling drive plug 13 to form a compression drive end. The other end of the first plug 10 is slidably connected to the inner wall of the cooling drive plug 13. One end of the first plug 10 is sealed to the cooling drive plug 13 to facilitate the sealing between the first plug and the cooling drive plug by the first spring.

[0042] In this invention, the first spring 11 has a first stop block 14 at one end and a first guide block 15 at the other end. The first stop block 14 is fixedly connected to the first plug 10. The first guide block 15 has a guide hole 16 in the axial direction and water holes 17 spaced apart on the first guide block 15. The outer wall of the first guide block 15 is fixedly connected to the inner wall of the first water flow channel 6. The first plug 10 passes through the guide hole 16 and is slidably connected to the first guide block 15. One end of the first spring 11 abuts against the first stop block 14 and the other end abuts against the first guide block 15, so as to facilitate the first spring being limited by the first stop block and the first guide block 15.

[0043] The tram cooling component 9 of this utility model includes a second plug 18 and a second spring 19.

[0044] The tram docking housing 4 is provided with a tram cooling socket 20. The tram cooling socket 20 is provided with tram cooling docking slots 21 spaced apart. The cooling drive plug 13 is inserted into the tram cooling docking slot 21. The tram cooling docking slot 21 is provided with a second water flow channel 8 on the side away from the cooling drive plug 13. The bottom of the tram cooling docking slot 21 is provided with a plug through hole. The tram cooling docking slot 21 is connected to the second water flow channel 8 through the plug through hole. A second plug 18 is inserted into the second water flow channel 8. A second spring 19 is sleeved on the second plug 18. One end of the second plug 18 extends out of the plug through hole and is placed in the tram cooling slot to form a docking end. The second plug 18 is sealed to the plug through hole. The other end of the second plug 18 is slidably connected to the inner wall of the second water flow channel 8 so that after the cooling drive plug is inserted into the tram cooling docking slot, the first plug and the second plug are squeezed together, so that the first water flow channel and the second water flow channel are connected.

[0045] In this invention, the second spring 19 has a second stop 22 at one end and a second guide block 23 at the other end. The second stop 22 is fixedly connected to the second plug 18. The second guide block 23 has a guide hole in the axial direction and water holes spaced apart on the second guide block 23. The outer wall of the second guide block 23 is fixedly connected to the inner wall of the second water flow channel 8. The second plug 18 passes through the guide hole and is slidably connected to the second guide block 23. One end of the second spring 19 abuts against the second stop 22 and the other end abuts against the second guide block 23, so as to facilitate the second spring being limited by the second stop and the second guide block.

[0046] The present invention provides a docking locking mechanism 24 between the charging docking housing 3 and the trolley docking housing 4. The docking locking mechanism 24 includes an elastic locking block 25, a locking sleeve 26, an elastic pressure block 27, and a locking spring 28. The outer wall of the charging docking housing 3 is provided with the elastic locking block 25. A locking slot 29 is provided between the trolley cooling socket 20 and the trolley docking housing 4. The outer wall of the trolley cooling socket 20 is provided with an unlocking channel 30. The outer wall of the trolley docking housing 4 is provided with the locking sleeve 26 and the elastic pressure block 27.

[0047] The end of the trolley docking housing 4 facing the charging docking housing 3 is a limiting end. One end of the elastic pressure block 27 is fixedly connected to the outer wall of the trolley docking housing 4, and the other end moves towards the unlocking channel 30 after being pressed by the locking sleeve 26. The locking sleeve 26 is fitted on the limiting end of the trolley docking housing 4, and the locking sleeve 26 is slidably connected to the outer wall of the trolley docking housing 4 via the locking spring 28.

[0048] The charging docking housing 3 is inserted into the locking slot 29. The elastic locking block 25 presses against the elastic pressure block 27. The elastic locking block 25 hooks onto the limiting end of the trolley docking housing 4, locking the charging docking housing 3 and the trolley docking housing 4 together. This facilitates unlocking by moving the locking sleeve towards the elastic pressure block, which in turn presses against the elastic pressure block. The elastic pressure block then presses against the elastic locking block, which moves into the unlocking channel, separating the elastic locking block from the limiting end of the trolley docking housing. This allows the charging docking housing 3 to be pulled out of the locking slot of the trolley docking housing.

[0049] The outer wall of the tram docking housing 4 of this utility model is provided with a positioning plate 31, which is fixedly connected to the tram docking housing 4. The positioning plate 31 is provided with a rod hole. An unlocking rod 32 is provided on one side of the tram docking housing 4. A locking spring 28 is sleeved on the unlocking rod 32. The unlocking rod 32 passes through the locking spring 28 and the rod hole and is fixedly connected to the locking sleeve 26. The unlocking rod 32 is slidably connected to the positioning plate 31. One end of the locking spring 28 abuts against a button fixed on the unlocking rod 32, and the other end abuts against the positioning plate 31. By pressing the button, the button pushes the unlocking rod to move, and the unlocking rod drives the locking sleeve to move, thereby unlocking.

[0050] The inner diameter of the locking sleeve 26 of this utility model gradually increases from the limiting end of the tram docking housing 4 toward the elastic pressure block 27, so as to facilitate the movement of the locking sleeve toward the elastic pressure block and onto the elastic pressure block.

[0051] The present invention provides a charging docking part 1 and an electric vehicle docking part 2 with a docking charging mechanism 34. The docking charging mechanism 34 includes a charging pile 35, a docking plug 36, an electric vehicle battery 37, and a docking socket 38. The charging docking part 1 also includes a charging pile 35, which is equipped with a power supply system 39. The charging docking housing 3 has a docking plug 36 inside, which is fixedly connected to the charging docking housing 3. The docking plug 36 is connected to the power supply system 39 via a wire. The electric vehicle docking part 2 includes an electric vehicle battery 37. The electric vehicle docking housing 4 has a docking socket 38 inside, which is fixedly connected to the electric vehicle docking housing 4. The docking socket 38 is connected to the electric vehicle battery 37 via a wire. The charging docking housing 3 docks with the electric vehicle docking housing 4, and the docking plug 36 docks with the docking socket 38 for charging. The charging docking housing 3 of this utility model is provided with a partition plate 40, which is fixedly connected to the charging docking housing 3. The partition plate 40 divides the interior of the charging docking housing 3 into a charging area and a cooling area. The docking plug 36 is located in the charging area, and the cooling drive plug 13 is located in the cooling area. The trolley docking housing 4 is provided with a partition plate slot 41, which divides the interior of the trolley docking housing 4 into a charging docking area and a cooling docking area. The docking socket 38 is located in the charging docking area, and the trolley cooling socket 20 is located in the cooling docking area. The partition plate 40 and the partition plate slot 41 are engaged and inserted. The charging area and the charging docking area cooperate to form a charging chamber, and the cooling area and the cooling docking area cooperate to form a cooling chamber. This facilitates the separation of the docking charging mechanism and the cooling docking mechanism through the partition plate and the partition plate slot. The two chambers are separated from each other and do not affect each other.

[0052] The present invention provides an inlet cooling drive plug 42 and an outlet cooling drive plug 43 within the cooling zone. The charging pile 35 contains a circulating water pump 33 and a water tank. The inlet of the circulating water pump 33 is connected to the water tank via a water pipe, and the outlet of the circulating water pump 33 is connected to the inlet cooling drive plug 42 via a water pipe. The outlet cooling drive plug 43 is connected to the water tank via a water pipe. The cooling docking zone provides an inlet electric vehicle cooling docking slot 44 and an outlet electric vehicle cooling docking slot 45. The inlet electric vehicle cooling docking slot 44 docks with the inlet cooling drive plug 42, and the outlet electric vehicle cooling docking slot 45 docks with the outlet cooling drive plug 43. A cooling water pipe 46 is wound around the outer wall of the electric vehicle battery 37. The inlet end of the cooling water pipe 46 is connected to the inlet electric vehicle cooling docking slot 44 via a water pipe, and the outlet end of the cooling water pipe 46 is connected to the outlet electric vehicle cooling docking slot 45 via a water pipe, facilitating the delivery of cooling water to the battery via the water pump.

[0053] The cooling water pipe 46 of this invention is provided with temperature-sensitive burst heads 47 at intervals inside, so that when the battery temperature rises abnormally, the temperature-sensitive burst heads will explode, continuously cooling the battery and preventing the battery from spontaneously combusting.

[0054] The present invention provides an inlet cooling drive plug 42 and an outlet cooling drive plug 43 within the cooling zone. The charging pile 35 contains a circulating water pump 33 and a water tank. The inlet of the circulating water pump 33 is connected to the water tank via a water pipe, and the outlet of the circulating water pump 33 is connected to the inlet cooling drive plug 42 via a water pipe. The outlet cooling drive plug 43 is connected to the water tank via a water pipe. The cooling docking zone provides an inlet electric vehicle cooling docking slot 44 and an outlet electric vehicle cooling docking slot 45. The inlet electric vehicle cooling docking slot 44 docks with the inlet cooling drive plug 42, and the outlet electric vehicle cooling docking slot 45 docks with the outlet cooling drive plug 43. A heat dissipation baffle 48 is fixedly installed on the outer wall of the electric vehicle battery 37. The inlet end of the heat dissipation baffle 48 is connected to the inlet electric vehicle cooling docking slot 44 via a water pipe, and the outlet end of the heat dissipation baffle 48 is connected to the outlet electric vehicle cooling docking slot 45 via a water pipe, facilitating the delivery of cooling water to the battery via the water pump.

[0055] The heat dissipation water baffle 48 of this utility model is provided with temperature-sensitive burst heads 47 at intervals inside, so that when the battery temperature rises abnormally, the temperature-sensitive burst heads will explode, continuously cooling the battery and preventing the battery from spontaneously combusting.

[0056] The water outlet cooling drive plug 43 of this utility model is equipped with a temperature sensor 49 on the water pipe connecting it to the water tank, so as to monitor the temperature from the battery outlet in real time and stop charging when the temperature exceeds a certain value.

[0057] This utility model charging pile can be equipped with a control system, such as a PLC control system. The power supply system 39 and temperature sensor 49 are all connected to the control system, allowing operators to monitor the charging status in real time. The charging docking housing 3 is designed for handheld use, and the positioning plate 31 can serve as a baffle for the charging port of the electric vehicle. The positioning plate 31 is fixedly connected to the frame of the electric vehicle.

[0058] As attached Figure 14 In this utility model, the shapes of the charging area and cooling area inside the charging docking housing 3 can be set according to different needs and the shape of the trolley docking housing 4 of different vehicles. Figure 14 Figures (a), (b), (c), (d), (e), and (f) show schematic diagrams of the interior of the charging docking housing 3 with several different configurations. The specific shape can be set according to requirements.

[0059] When using, as shown in the attached document Figure 1-13The electric vehicle to be charged is moved to the side of the charging pile 35. In the initial state, the locking sleeve 26 is pulled by the locking spring 28. The locking sleeve 26 is positioned close to the positioning plate 31. The operator removes the charging docking housing 3 and inserts it into the locking slot 29 of the electric vehicle docking housing 4. The elastic locking block 25 on the charging docking housing 3 presses against the elastic pressure block 27 on the electric vehicle docking housing 4, lifting it up, as shown in the attached figure. Figure 3 The left end of the elastic locking block 25 abuts against the elastic pressure block 27, and the right end hooks onto the limiting end of the tram docking housing 4. The locking sleeve 26, under the tension of the locking spring 28, is sleeved on the limiting end of the tram docking housing 4 to lock and fix the charging docking housing 3 and the tram docking housing 4.

[0060] Simultaneously, the docking plug 36 connects to the docking socket 38 for charging, and the water inlet cooling drive plug 42 connects to the water inlet trolley cooling docking slot 44. This allows cold water from the water tank to flow through the circulating water pump 33 and into the water inlet trolley cooling docking slot 44 via the water inlet cooling drive plug 42. The water inlet trolley cooling docking slot 44 then connects to the inlet of the cooling water pipe 46 or the radiator baffle 48 on the trolley battery 37 via a water pipe. The cooling water pipe 46 or the radiator baffle 48 covers the trolley battery 37 to cool it down. Then, the outlet of the cooling water pipe 46 or the radiator baffle 48 on the trolley battery 37 connects to the outlet trolley cooling docking slot 45 via a water pipe. The outlet trolley cooling docking slot 45 connects to the outlet trolley cooling docking slot 45. The drive plug 43 is connected to the water tank via a water pipe. The water used for heat exchange to cool the electric vehicle battery 37 is drained into the water tank, thus cooling the electric vehicle battery while charging it. After the electric vehicle battery 37 is fully charged, the operator manually presses the button on the unlocking lever 32, which moves to the left. The unlocking lever 32 moves the locking sleeve 26 to the left, causing the locking sleeve 26 to move towards the elastic pressure block 27. The locking sleeve 26 presses the elastic pressure block 27, which in turn presses the elastic locking block 25. The elastic locking block 25 moves into the unlocking channel 30, separating the elastic locking block 25 from the limiting end of the electric vehicle docking housing 4. At this point, the charging docking housing 3 can be pulled out to the right.

[0061] This utility model has a simple structure and is safe to use. When not connected, the first plug 10 inside the charging docking housing 3 is sealed to the cooling drive plug 13 via the first spring 11, and the second plug 18 inside the trolley docking housing 4 is sealed to the second water flow channel 8 via the second spring 19. This ensures that when the charging docking housing 3 and the trolley docking housing 4 are not connected, the first plug 10 and the second plug 18 are sealed, preventing water leakage. When the charging docking housing 3 and the trolley docking housing 4 are connected, the first plug 10 and the second plug 18 abut and press against each other, as shown in the attached figure. Figure 3 Appendix Figure 6 and attached Figure 9The first plug 10 presses against the first spring 11, moving to the right and separating from the cooling drive plug 13. The second plug 18 presses against the second spring 19, moving to the left. The second plug 18 exits the plug hole and is placed in the second water flow channel 8, thus connecting the first water flow channel 6 and the second water flow channel 8, achieving cold water cooling of the electric vehicle battery 7. When the charging docking housing 3 separates from the electric vehicle docking housing 4, the first plug 10 and the second plug 18 return to their original positions under the rebound force of the first spring 11 and the second spring 19, achieving their respective seals. Compared with the prior art, this utility model has good sealing performance, stable structure, and no water leakage. The cooling docking mechanism 5 in this utility model has a simple structure, few parts, low operating cost, and quick and convenient docking. The docking locking mechanism 24 in this utility model has an ingenious structure, locking is safe and fast, and unlocking is convenient, ensuring stable and reliable docking between the charging docking housing 3 and the electric vehicle docking housing 4.

[0062] This utility model, due to the above-mentioned structure, has the advantages of ingenious structure, good sealing, timely cooling, no water leakage, fewer parts, low cost of use, and stable and reliable connection.

Claims

1. A water-cooled charging system for electric vehicles, comprising a charging docking part (1) and an electric vehicle docking part (2), characterized in that: The charging docking part (1) includes a charging docking housing (3), the trolley docking part (2) includes a trolley docking housing (4), a cooling docking mechanism (5) is provided between the charging docking housing (3) and the trolley docking housing (4), the cooling docking mechanism (5) includes a first water flow channel (6), a cooling drive component (7), a second water flow channel (8) and a trolley cooling component (9), the charging docking housing (3) is provided with a first water flow channel (6), the first water flow channel (6) is provided with a cooling drive component (7), the cooling drive component (7) is sealed and slidably connected to the charging docking housing (3), the trolley docking housing (4) is provided with a second water flow channel (8), the second water flow channel (8) is provided with a trolley cooling component (9), the trolley cooling component (9) is sealed and slidably connected to the trolley docking housing (4), the charging docking housing (3) and the trolley docking housing (4) dock, the charging cooling drive component (7) and the trolley cooling component (9) dock and squeeze, so as to realize the connection between the first water flow channel (6) and the second water flow channel (8).

2. The electric vehicle water-cooled charging system according to claim 1, characterized in that: The cooling drive component (7) includes a first plug (10) and a first spring (11). The charging docking housing (3) is provided with a charging cooling slot (12). The charging cooling slot (12) is provided with a cooling drive plug (13) spaced apart. The cooling drive plug (13) is fixedly connected to the inner wall of the charging docking housing (3). The cooling drive plug (13) is provided with a first water flow channel (6). The first plug (10) is inserted into the cooling drive plug (13). The first spring (11) is sleeved on the first plug (10). One end of the first plug (10) extends out of the cooling drive plug (13) to form a compression drive end. The other end of the first plug (10) is slidably connected to the inner wall of the cooling drive plug (13). One end of the first plug (10) is sealed to the cooling drive plug (13).

3. The electric vehicle water-cooled charging system according to claim 2, characterized in that: The first spring (11) has a first stop (14) at one end and a first guide block (15) at the other end. The first stop (14) is fixedly connected to the first plug (10). The first guide block (15) has a guide hole (16) axially. Water holes (17) are spaced on the first guide block (15). The outer wall of the first guide block (15) is fixedly connected to the inner wall of the first water flow channel (6). The first plug (10) passes through the guide hole (16) and is slidably connected to the first guide block (15). One end of the first spring (11) abuts against the first stop (14), and the other end abuts against the first guide block (15).

4. A water-cooled charging system for electric vehicles according to claim 2 or 3, characterized in that: The tram cooling component (9) includes a second plug (18) and a second spring (19). A tram cooling socket (20) is provided inside the tram docking housing (4). Tram cooling docking slots (21) are spaced apart on the tram cooling socket (20). The cooling drive plug (13) is inserted into the tram cooling docking slots (21). A second water flow channel (8) is provided on the side of the tram cooling docking slots (21) away from the cooling drive plug (13). The bottom of the slot is provided with a plug through hole. The tram cooling docking slot (21) is connected to the second water flow channel (8) through the plug through hole. The second water flow channel (8) is provided with a second plug (18). A second spring (19) is sleeved on the second plug (18). One end of the second plug (18) passes through the plug through hole and is placed in the tram cooling slot to form a docking end. The second plug (18) is sealed to the plug through hole. The other end of the second plug (18) is slidably connected to the inner wall of the second water flow channel (8).

5. The electric vehicle water-cooled charging system according to claim 4, characterized in that: The second spring (19) has a second stop (22) at one end and a second guide block (23) at the other end. The second stop (22) is fixedly connected to the second plug (18). The second guide block (23) has a guide hole in the axial direction. Water holes are spaced on the second guide block (23). The outer wall of the second guide block (23) is fixedly connected to the inner wall of the second water flow channel (8). The second plug (18) passes through the guide hole and is slidably connected to the second guide block (23). One end of the second spring (19) abuts against the second stop (22), and the other end abuts against the second guide block (23).

6. The electric vehicle water-cooled charging system according to claim 4, characterized in that: A docking locking mechanism (24) is provided between the charging docking housing (3) and the tram docking housing (4). The docking locking mechanism (24) includes an elastic locking block (25), a locking sleeve (26), an elastic pressure block (27), and a locking spring (28). The outer wall of the charging docking housing (3) is provided with an elastic locking block (25). A locking slot (29) is provided between the tram cooling socket (20) and the tram docking housing (4). The outer wall of the tram cooling socket (20) is provided with an unlocking channel (30). The outer wall of the tram docking housing (4) is provided with a locking sleeve (26). The outer wall of the tram docking housing (4) is provided with an elastic pressure block (27). One end of the charging docking housing (3) is the limiting end. One end of the elastic pressure block (27) is fixedly connected to the outer wall of the tram docking housing (4), and the other end moves to the unlocking channel (30) after being squeezed by the locking sleeve (26). The locking sleeve (26) is fitted on the limiting end of the tram docking housing (4). The locking sleeve (26) is slidably connected to the outer wall of the tram docking housing (4) through the locking spring (28). The charging docking housing (3) is inserted into the locking slot (29). The elastic locking block (25) squeezes the elastic pressure block (27) and hooks the limiting end of the tram docking housing (4), locking the charging docking housing (3) and the tram docking housing (4) together.

7. A water-cooled charging system for electric vehicles according to claim 6, characterized in that: The outer wall of the tram docking housing (4) is provided with a positioning plate (31). The positioning plate (31) is fixedly connected to the tram docking housing (4). The positioning plate (31) is provided with a rod hole. The tram docking housing (4) is provided with an unlocking rod (32) on one side. A locking spring (28) is sleeved on the unlocking rod (32). The unlocking rod (32) passes through the locking spring (28), the rod hole and is fixedly connected to the locking sleeve (26). The unlocking rod (32) is slidably connected to the positioning plate (31). One end of the locking spring (28) abuts against the button fixed on the unlocking rod (32) and the other end abuts against the positioning plate (31). The inner diameter of the locking sleeve (26) gradually increases from the limiting end of the tram docking housing (4) towards the elastic pressure block (27).

8. A water-cooled charging system for electric vehicles according to claim 5, 6, or 7, characterized in that: The charging docking part (1) and the electric vehicle docking part (2) are provided with a docking charging mechanism (34). The docking charging mechanism (34) includes a charging pile (35), a docking plug (36), an electric vehicle battery (37), and a docking socket (38). The charging docking part (1) also includes a charging pile (35). The charging pile (35) is provided with a power supply system (39). The charging docking housing (3) is provided with a docking plug (36). The docking plug (36) is fixedly connected to the charging docking housing (3). The docking plug (36) is connected to the power supply system (39) via a wire. The electric vehicle docking part (2) includes an electric vehicle battery (37). The electric vehicle docking housing (4) is provided with a docking socket (38). The docking socket (38) is fixedly connected to the electric vehicle docking housing (4). The docking socket (38) is connected to the electric vehicle battery (37) via a wire. The charging docking housing (3) and the electric vehicle docking housing (4) are docked. The docking plug (36) and the docking socket (38) are docked for charging.

9. A water-cooled charging system for electric vehicles according to claim 8, characterized in that: The charging docking housing (3) is provided with a partition plate (40), which is fixedly connected to the charging docking housing (3). The partition plate (40) divides the interior of the charging docking housing (3) into a charging area and a cooling area. The trolley docking housing (4) is provided with a partition plate slot (41), which divides the interior of the trolley docking housing (4) into a charging docking area and a cooling docking area. The partition plate (40) and the partition plate slot (41) are inserted into each other. The charging area and the charging docking area cooperate to form a charging chamber, and the cooling area and the cooling docking area cooperate to form a cooling chamber.

10. A water-cooled charging system for electric vehicles according to claim 9, characterized in that: The cooling area is provided with an inlet cooling drive plug (42) and an outlet cooling drive plug (43). The charging pile (35) is provided with a circulating water pump (33) and a water tank. The inlet of the circulating water pump (33) is connected to the water tank via a water pipe. The outlet of the circulating water pump (33) is connected to the inlet cooling drive plug (42) via a water pipe. The outlet cooling drive plug (43) is connected to the water tank via a water pipe. The cooling docking area is provided with an inlet electric vehicle cooling docking slot (44) and an outlet electric vehicle cooling docking slot (45). The inlet electric vehicle cooling docking slot (44) docks with the inlet cooling drive plug (42), and the outlet electric vehicle cooling docking slot (45) docks with the outlet cooling drive plug (43). The electric vehicle battery (37) is fixedly provided with a cooling component. The inlet end of the cooling component is connected to the inlet electric vehicle cooling docking slot (44) via a water pipe, and the outlet end of the cooling component is connected to the outlet electric vehicle cooling docking slot (45) via a water pipe.

11. A water-cooled charging system for electric vehicles according to claim 10, characterized in that: The cooling component is a cooling water pipe (46) or a heat dissipation baffle (48), and the cooling component is provided with temperature-sensing burst heads (47) at intervals inside.

Images