Safety protection device of liquid cooling pump for large-current charging of liquid cooling charging gun

Abstract

The utility model discloses a liquid cooling pump safety protection device for large-current charging of a liquid cooling charging gun, and relates to the technical field of charging piles. The cabinet comprises a cabinet body, the left end of the cabinet body communicates with a charging sleeve. A charging wire is arranged in the middle of the charging sleeve; a liquid cooling pipe is arranged outside the wire and on the charging sleeve; a cooling protection device is arranged in the cabinet body; the cooling protection device comprises a cooling shell installed in the cabinet body. The interior of the cooling shell is divided into three cavities in the vertical direction. Spiral cooling pipes are arranged in the three cavities; every two adjacent cooling pipes are communicated with each other; and fans are arranged at the left ends of the cavities. The charging pile cooling device has the beneficial effects that when the charging pile cooling device is used, the charging pile is safer to use and better protected by detecting the flow speed, the water pressure and the temperature, and the charging wire is more convenient to cool and use by adjusting the cooling speed.

Description

Technical Field

[0001] The utility model relates to the technical field of charging piles, and in particular to a liquid cooling pump safety protection device for high-current charging of a liquid cooling charging gun. Background Art

[0002] The input end of the charging pile is directly connected to the AC power grid, and the output end is equipped with a charging plug for charging electric vehicles. However, the current of the gun line on some charging piles is relatively large, and the gun line is often cooled by a liquid cooling pump. Because the gun line heats up severely when the current is large, it is easy to cause fire and other situations. When charging, when the liquid cooling pump is accidentally shut down, the temperature of the gun line rises rapidly, which is prone to fire and other safety accidents. It is not safe to use, and it is not convenient to adjust and cool down according to the temperature of the coolant. For example, in winter, the coolant temperature is low and there is no need to cool down quickly. In summer, it is hot and needs to cool down quickly. It is not convenient to adjust and cool down according to the temperature. Therefore, a liquid cooling pump safety protection device for high-current charging of a liquid-cooled charging gun is provided to solve the above problems and better protect the use of charging piles. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a liquid cooling pump safety protection device for high current charging of liquid cooling charging guns in view of the above-mentioned technical deficiencies. When in use, the flow rate, water pressure and temperature are detected to make it safer to use and better protect the charging pile. By adjusting the cooling speed, the charging line cooling is more convenient to use.

[0004] The technical solution adopted by the utility model is: to provide a liquid cooling pump safety protection device for high-current charging of a liquid-cooled charging gun, including a cabinet; a charging sleeve is connected to the left end of the cabinet; a charging wire is arranged in the middle of the charging sleeve; a liquid cooling pipe is arranged on the charging sleeve outside the wire; a cooling protection device is installed in the cabinet; the cooling protection device includes a cooling shell installed in the cabinet; the cooling shell is divided into three cavities vertically; spiral cooling pipes are arranged in the three cavities; two adjacent cooling pipes are connected; fans are arranged at the left end of the cavity; sliding devices are arranged at the left and right ends of the cooling shell; the sliding device at the left end includes two slide rails; three baffles are slidably connected between the two slide rails; each baffle cooperates with the corresponding cavity; the three baffles are arranged in a stepped shape; two adjacent baffles are slidably connected to each other; the sliding device at the right end and the sliding device at the left end The cabinet is symmetrical and has the same structure; an electric push rod is fixedly connected to the rear end of the cabinet; a "U"-shaped driving rod is fixedly connected to the lower end of the electric push rod; two baffles at the lower ends of the driving rod are fixedly connected; three toggle switches corresponding to the fans are arranged on the slide rail at the left end; a toggle device corresponding to the toggle switch is arranged on the driving rod; a control module, a pump body and a water tank are installed in the cabinet; the water outlet end of the water tank is connected to the pump body; the water inlet end of the water tank is connected to the cooling pipe at the lower end; the cooling pipe at the upper end is connected to the liquid cooling pipe at the rear end; the water outlet end of the pump body is connected to the liquid cooling pipe at the front end; a flow rate sensor is installed on the water outlet end of the pump body; a water pressure sensor is installed on the water inlet end of the water tank; a temperature sensor is installed on the cooling pipe at the upper end; the signal outputs of the flow rate sensor, the water pressure sensor and the temperature sensor are all connected to the control module.

[0005] To further optimize the technical solution, a through hole corresponding to the cooling shell is opened on the cabinet of the liquid cooling pump safety protection device for high-current charging of the liquid-cooled charging gun.

[0006] To further optimize the technical solution, the toggle device of the liquid cooling pump safety protection device for high-current charging of the liquid-cooled charging gun includes a toggle column; a mounting groove slidably connected to the toggle column is opened on the driving rod; and a spring is fixedly connected between the mounting groove and the driving rod.

[0007] To further optimize the technical solution, the control module of the liquid cooling pump safety protection device for high-current charging of the liquid-cooled charging gun is used to control the charging line.

[0008] To further optimize the technical solution, multiple ventilation holes are opened on the baffle of the liquid cooling pump safety protection device for high-current charging of the liquid-cooled charging gun.

[0009] To further optimize the technical solution, the lower ends of the two corresponding slide rails of the liquid cooling pump safety protection device for high-current charging of the liquid-cooled charging gun are fixedly connected to auxiliary plates.

[0010] To further optimize the technical solution, driving grooves are provided on the two lower baffles of the liquid cooling pump safety protection device for high-current charging of the liquid-cooled charging gun; and driving blocks that slide in cooperation with the driving grooves are fixedly connected to the two upper baffles.

[0011] Compared with the traditional liquid cooling pump safety protection device, the utility model has the following beneficial effects:

[0012] 1. The setting of the flow rate sensor: when the flow rate is detected to be too slow or stopped, the charging line of the charging pile is controlled to be turned off to prevent the charging line from overheating and causing safety accidents after the pump body fails; the setting of the water pressure sensor: when the water pressure changes abnormally, the control module controls the charging pile to be turned off, which is safer to use; the setting of the temperature sensor: when the temperature is too high, the control module controls the charging pile to be turned off;

[0013] 2. The temperature sensor, electric push rod, driving rod, baffle, driving groove and driving block are coordinated, and the three cavities are connected to the outside world, which is more convenient for cooling and ventilation of the three cooling pipes; the driving rod, toggle column, toggle switch and fan are coordinated to quickly cool the coolant;

[0014] 3. It is convenient to turn on different numbers of fans to cool down according to the temperature conditions, so as to better cool down the charging cable;

[0015] 4. Through the setting of flow rate sensor, water pressure sensor and temperature sensor, it is safer to use and better protect the charging pile. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the cooling shell structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the cooling shell from another perspective of the present utility model;

[0019] Figure 4 This is a structural schematic diagram of another viewing angle of the utility model;

[0020] Figure 5 This is a structural schematic diagram of the toggle switch of the utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the baffle of the utility model when it is sliding;

[0022] Figure 7 It is a schematic diagram of the exploded structure of the toggle column of the utility model;

[0023] Figure 8 This is a schematic diagram of the exploded structure of the baffle of the utility model;

[0024] In the figure, 1. cabinet; 2. charging sleeve; 3. charging cable; 4. liquid cooling tube; 5. cooling shell; 6. cavity; 7. cooling tube; 8. fan; 9. slide rail; 10. baffle; 11. electric push rod; 12. driving rod; 13. toggle switch; 14. control module; 15. pump body; 16. water tank; 17. flow rate sensor; 18. water pressure sensor; 19. temperature sensor; 20. through hole; 21. toggle column; 22. mounting slot; 23. spring; 24. ventilation hole; 25. auxiliary plate; 26. driving slot; 27. driving block. DETAILED DESCRIPTION

[0025] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] like Figure 1-8As shown, a liquid cooling pump safety protection device for high-current charging of a liquid-cooled charging gun includes a cabinet 1; a charging sleeve 2 is connected to the left end of the cabinet 1; a charging line 3 is arranged in the middle of the charging sleeve 2; a liquid cooling pipe 4 is arranged on the charging sleeve 2 outside the wire; a cooling protection device is installed in the cabinet 1; the cooling protection device includes a cooling shell 5 installed in the cabinet 1; the cooling shell 5 is vertically divided into three cavities 6; spiral cooling tubes 7 are arranged in the three cavities 6; two adjacent cooling tubes 7 are connected; a fan 8 is arranged at the left end of the cavity 6; sliding devices are arranged at the left and right ends of the cooling shell 5; the sliding device at the left end includes Two slide rails 9; three baffles 10 are slidably connected between the two slide rails 9; each baffle 10 cooperates with the corresponding cavity 6; the three baffles 10 are arranged in a stepped manner; two adjacent baffles 10 are slidably connected to each other; the sliding device at the right end and the sliding device at the left end are symmetrical and have the same structure; an electric push rod 11 is fixedly connected to the rear end of the cabinet 1; a "U"-shaped driving rod 12 is fixedly connected to the lower end of the electric push rod 11; the two baffles 10 at the lower ends of the driving rod 12 are fixedly connected; three toggle switches 13 corresponding to the fan 8 are arranged on the left slide rail 9; the driving rod 12 is provided with and a toggle device corresponding to the toggle switch 13; a control module 14, a pump body 15 and a water tank 16 are installed in the cabinet 1; the water outlet of the water tank 16 is connected to the pump body 15; the water inlet of the water tank 16 is connected to the cooling pipe 7 at the bottom; the cooling pipe 7 at the top is connected to the liquid cooling pipe 4 at the rear end; the water outlet of the pump body 15 is connected to the liquid cooling pipe 4 at the front end; a flow rate sensor 17 is installed on the water outlet of the pump body 15; a water pressure sensor 18 is installed on the water inlet of the water tank 16; a temperature sensor 19 is installed on the cooling pipe 7 at the top; the signal of the flow rate sensor 17, the water pressure sensor 18 and the temperature sensor 19 The signal outputs are all connected to the control module 14; a through hole 20 corresponding to the cooling shell 5 is opened on the cabinet 1; the toggle device includes a toggle column 21; the driving rod 12 is provided with a mounting groove 22 which is slidably connected to the toggle column 21; a spring 23 is fixedly connected between the mounting groove 22 and the driving rod 12; the control module 14 is used to control the charging line 3; a plurality of ventilation holes 24 are opened on the baffle 10; the corresponding lower ends of the two slide rails 9 are fixedly connected to an auxiliary plate 25; the two lower baffles 10 are provided with a driving groove 26; the two upper baffles 10 are fixedly connected to a driving block 27 which slides with the driving groove 26.

[0027] The specific structure of the baffle 10 and the slide rail 9 is as follows: Figure 8 As shown; two adjacent baffles 10 are slidably connected to each other, and the specific structure is as follows Figure 7 As shown;

[0028] When the charging gun is charging, the pump body 15 is turned on, and the pump body 15 drives the coolant in the water tank 16 to circulate in the liquid cooling tube 4. The two liquid cooling tubes 4 cool down the charging line 3 between them to prevent the charging line 3 from being damaged due to excessive current. The flow rate sensor 17 is set to detect the flow rate of the coolant in the pump body 15. When the flow rate is detected to be too slow or the flow rate stops, the flow rate sensor 17 transmits a signal to the control module 14, and the control module 14 controls the charging line 3 of the charging pile to be closed to prevent the charging line 3 from being damaged after the pump body 15 fails. 3 There is no circulation of coolant to cool down, which causes the charging cable 3 to overheat and cause a safety accident; the setting of the water pressure sensor 18 can detect the water pressure. When there is a hole in the pipe, the water pressure will change. When the water pressure changes abnormally, the signal is transmitted to the control module 14, and the control module 14 controls the charging pile to be closed, which is safer to use; the setting of the temperature sensor 19 can also understand the circulation of the pump body 15 and the temperature of the coolant, so as to transmit the data to the control module 14. When the temperature is too high, the control module 14 controls the charging pile to be closed;

[0029] The baffles 10 are provided with ventilation holes 24, which are convenient for cooling the coolant in the cooling pipe 7, making it more convenient to use;

[0030] When the temperature sensor 19 detects that the temperature of the coolant is too high or in a hot season, the electric push rod 11 is turned on, and the electric push rod 11 controls the driving rod 12 to move upward, and the driving rod 12 drives the baffle 10 to move upward. When the driving groove 26 on the baffle 10 moves, the driving block 27 controls the adjacent baffle 10 to move upward, and finally the three cavities 6 are connected to the outside world, which is more convenient for the cooling and ventilation of the three cooling pipes 7; and when the driving rod 12 moves upward, the toggle column 21 on the driving rod 12 contacts the toggle switch 13, and the toggle switch 13 is turned on. The toggle switch 13 controls the corresponding fan 8 to turn on, and the coolant in the cavity 6 is quickly cooled, and the cooling is faster. After the cooling is completed, the driving rod 12 moves downward, and the toggle column 21 controls the toggle switch 13 to turn off, thereby turning off the fan 8 for normal ventilation and heat dissipation; it is convenient to turn on different numbers of fans 8 for cooling according to the temperature conditions, so as to better cool the charging cable 3;

[0031] By providing the flow rate sensor 17, the water pressure sensor 18 and the temperature sensor 19, the charging pile can be used more safely and better protected.

[0032] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims, or the equivalent forms of such scope and boundaries.

Claims

1. A liquid cooling pump safety protection device for high current charging of a liquid cooling charging gun, characterized in that: The cabinet (1) comprises a cabinet body (1); the left end of the cabinet body (1) is connected to a charging sleeve (2); a charging line (3) is arranged in the middle of the charging sleeve (2); and a liquid cooling pipe (4) is arranged on the charging sleeve (2) outside the wire; A cooling protection device is installed in the cabinet (1); The cooling protection device comprises a cooling shell (5) installed in a cabinet (1); the cooling shell (5) is vertically divided into three cavities (6); a spiral cooling pipe (7) is arranged in each of the three cavities (6); two adjacent cooling pipes (7) are connected; a fan (8) is arranged at the left end of each cavity (6); The cooling shell (5) is provided with sliding devices at both left and right ends; the sliding device at the left end includes two slide rails (9); three baffles (10) are slidably connected between the two slide rails (9); each baffle (10) is matched with a corresponding cavity (6); the three baffles (10) are arranged in a stepped manner; two adjacent baffles (10) are slidably connected to each other; the sliding device at the right end and the sliding device at the left end are symmetrical and have the same structure; The rear end of the cabinet (1) is fixedly connected to an electric push rod (11); the lower end of the electric push rod (11) is fixedly connected to a "U"-shaped driving rod (12); two baffles (10) at the lower ends of both ends of the driving rod (12) are fixedly connected; Three toggle switches (13) corresponding to the fans (8) are arranged on the left end slide rail (9); The driving rod (12) is provided with a toggle device corresponding to the toggle switch (13); A control module (14), a pump body (15) and a water tank (16) are installed in the cabinet (1); the water outlet of the water tank (16) is connected to the pump body (15); the water inlet of the water tank (16) is connected to the cooling pipe (7) at the bottom; the cooling pipe (7) at the top is connected to the liquid cooling pipe (4) at the rear end; the water outlet of the pump body (15) is connected to the liquid cooling pipe (4) at the front end; a flow rate sensor (17) is installed on the water outlet of the pump body (15); a water pressure sensor (18) is installed on the water inlet of the water tank (16); a temperature sensor (19) is installed on the cooling pipe (7) at the top; and signal outputs of the flow rate sensor (17), the water pressure sensor (18) and the temperature sensor (19) are all connected to the control module (14).

2. The liquid cooling pump safety protection device for high current charging of a liquid cooling charging gun according to claim 1, characterized in that: The cabinet body (1) is provided with a through hole (20) corresponding to the cooling shell (5).

3. The liquid cooling pump safety protection device for high current charging of a liquid cooling charging gun according to claim 1, characterized in that: The toggle device comprises a toggle column (21); a driving rod (12) is provided with a mounting groove (22) which is slidably connected to the toggle column (21); and a spring (23) is fixedly connected between the mounting groove (22) and the driving rod (12).

4. The liquid cooling pump safety protection device for high current charging of a liquid cooling charging gun according to claim 1, characterized in that: The control module (14) is used to control the charging cable (3).

5. The liquid cooling pump safety protection device for high current charging of a liquid cooling charging gun according to claim 1, characterized in that: A plurality of ventilation holes (24) are provided on the baffle (10).

6. The liquid cooling pump safety protection device for high current charging of a liquid cooling charging gun according to claim 1, characterized in that: The lower ends of the two corresponding slide rails (9) are both fixedly connected with auxiliary plates (25).

7. The liquid cooling pump safety protection device for high current charging of a liquid cooling charging gun according to claim 1, characterized in that: The two baffles (10) at the lower part are both provided with driving grooves (26); the two baffles (10) at the upper part are both fixedly connected with driving blocks (27) which are slidably matched with the driving grooves (26).

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