Charger top-mounted liquid cooling host device

Abstract

The utility model relates to the technical field of new energy charging pile heat management, and discloses a charger top-mounted liquid cooling host device which comprises a radiator and condenser assembly and a liquid cooling host device shell, a fixing frame is fixedly installed in the liquid cooling host device shell, and a radiator water pump is installed on the fixing frame; a compressor assembly is arranged on one side of the radiator water pump, a first-stage liquid storage kettle and a second-stage liquid storage kettle are arranged on one side of the compressor assembly, a heat management controller is installed on the first-stage liquid storage kettle, a heat exchanger is arranged on one side of the heat management controller, and a water pump set is installed on the outer wall of the second-stage liquid storage kettle. Heat is absorbed and released through the phase change process, namely liquefaction and vaporization, of the refrigerant, the circulating cooling liquid is cooled through the heat exchanger, and therefore the purpose of adjusting the working temperature of the power device of the charging pile is achieved, compared with a traditional liquid cooling scheme, under the same energy consumption, the heat dissipation efficiency is higher, and the service life of the power device of the charging pile is prolonged. The heat dissipating capacity is at least doubled.

Description

Technical Field

[0001] This application relates to the field of thermal management technology for new energy charging piles, and in particular to a top-mounted liquid-cooled main unit for a charger. Background Technology

[0002] With the increasing popularity of electric vehicles, charging stations, as energy replenishment devices, are becoming increasingly important in daily life. However, charging stations generate a significant amount of heat during the charging process, especially those using high-current charging. If heat is not dissipated in time, it can not only affect the performance and lifespan of the equipment but also potentially cause safety hazards. Currently, the main common heat dissipation methods for charging stations are as follows:

[0003] Natural heat dissipation utilizes ambient temperature and airflow to dissipate heat. This typically involves installing heat sinks or ventilation holes on the charging station's casing, or optimizing the casing design to accelerate airflow, thereby aiding in the cooling of internal components. The advantage of this method is its low cost, but its disadvantage is that it is less effective in high-temperature environments or during high-power charging, and it is generally used in scenarios involving low-current AC charging.

[0004] Air cooling is a method of heat dissipation that uses a built-in fan to accelerate airflow. This method is more effective than natural heat dissipation, but it may still not meet the heat dissipation requirements in high-temperature environments or high-power charging, and may generate noise and additional energy consumption. It is typically used for AC charging, or DC charging in general pure electric passenger vehicles.

[0005] Liquid cooling involves installing cooling pipes inside the charging station, where circulating coolant carries away heat. This method offers higher heat dissipation efficiency and can meet the heat dissipation requirements of higher-power charging. However, it is insufficient for even higher power levels and has limited temperature control capabilities. It also increases the cost and complexity of the charging station and is typically used for fast charging of industrial vehicles such as electric buses, minibuses, and heavy trucks.

[0006] Existing natural cooling, air cooling, and liquid cooling methods primarily address charging heat dissipation in current charging technologies. However, with the advancement of solid-state battery applications and the increasing demands for charging efficiency in electric buses and large engineering vehicles, existing charging technologies and cooling solutions are no longer sufficient. This results in problems such as low charging efficiency, poor heat dissipation, high failure rates, and reduced equipment lifespan. Therefore, this applicant proposes a top-mounted liquid-cooled main unit for the charger, providing a charging system with higher heat dissipation efficiency and a more compact size. Utility Model Content

[0007] To address the challenges posed by the increasing demand for charging efficiency in electric buses and large engineering vehicles due to the advancement of solid-state battery applications, existing charging technologies and heat dissipation solutions are no longer sufficient to meet application requirements, resulting in problems such as low charging efficiency, poor heat dissipation, high failure rate, and reduced equipment lifespan. This application provides a top-mounted liquid-cooled main unit for chargers.

[0008] The technical solution of the top-mounted liquid-cooled main unit device for charger provided in this application is as follows:

[0009] A top-mounted liquid-cooled main unit for a charger includes a radiator and condenser assembly and a liquid-cooled main unit housing. A fixed frame is fixedly installed inside the liquid-cooled main unit housing. A radiator water pump is installed on the fixed frame. A compressor assembly is located on one side of the radiator water pump. A primary liquid storage tank and a secondary liquid storage tank are located on one side of the compressor assembly. A thermal management controller is installed on the primary liquid storage tank. A heat exchanger is located on one side of the thermal management controller. A water pump group is installed on the outer wall of the secondary liquid storage tank. The water pump group includes a first water pump, a second water pump, and a third water pump.

[0010] Preferably, the sidewalls of the liquid-cooled main unit housing are sequentially equipped with a display assembly, an AC power distribution assembly, an AC-to-DC power supply, and a DC power supply from one side to the other.

[0011] Preferably, a compressor exhaust pipe is connected to the radiator and condenser assembly, and a liquid pipe is fixed to the compressor exhaust pipe, with one end of the liquid pipe connected to the compressor assembly.

[0012] Preferably, a suction pipe is connected between the compressor assembly and the heat exchanger, a heat exchange water pipe assembly is connected between the heat exchanger and the primary liquid storage tank, and a liquid storage tank connecting pipe is connected between the primary liquid storage tank and the secondary liquid storage tank.

[0013] Preferably, the output end of the radiator and condenser assembly is connected to a radiator outlet pipe, the input end of the radiator and condenser assembly is connected to a radiator inlet pipe, one end of the radiator outlet pipe is connected to a secondary liquid storage tank, one end of the radiator inlet pipe is connected to a radiator water pump, and the secondary liquid storage tank is provided with multiple input connectors, which are respectively connected to water pump one, water pump two and water pump three.

[0014] Preferably, bolt holes for positioning are provided at the corners of the bottom end of the liquid cooling host device housing, a through hole is provided on one side of the bottom of the liquid cooling host device housing, and heat dissipation holes are provided on the outer wall of the liquid cooling host device housing.

[0015] In summary, this application includes the following beneficial technical effects:

[0016] This application utilizes the phase change process of refrigerant, namely liquefaction and vaporization, to absorb and release heat, and cools the circulating coolant through a heat exchanger, thereby achieving the purpose of regulating the operating temperature of the charging pile power devices. By modularizing the key components of the liquid cooling system, it is convenient to integrate the solution into the whole product. Compared with traditional liquid cooling solutions, the solution using this invention has higher heat dissipation efficiency and at least doubles the heat dissipation capacity under the same energy consumption. Moreover, the use of a multi-stage heat exchange scheme can be adjusted according to actual heat dissipation needs, keeping energy consumption to a minimum without reducing the heat dissipation effect.

[0017] This application provides multiple cooling input / output interfaces, which facilitates the design of cooling solutions for charging modules and charging terminals, and can fully dissipate heat from the charging system; it also provides a system operating status monitoring and display function, which can fully display the system operating status and improve the accuracy and safety of system operation. Attached Figure Description

[0018] Figure 1 This is a front view of a top-mounted liquid-cooled main unit device for a charger according to an embodiment of the application.

[0019] Figure 2 This is a schematic diagram of the display screen side structure of a top-mounted liquid-cooled main unit for a charger according to an embodiment of the application.

[0020] Figure 3 This is a schematic diagram of the heat dissipation hole side structure of a top-mounted liquid-cooled main unit of a charger according to an embodiment of the application.

[0021] Explanation of reference numerals in the attached diagram: 1. Radiator and condenser assembly; 2. Radiator outlet pipe; 3. Compressor exhaust pipe; 4. Radiator inlet pipe; 5. Radiator water pump; 6. Liquid pipe; 7. Fixing frame; 8. Compressor assembly; 9. Primary liquid storage tank; 10. Thermal management controller; 11. Suction pipe; 12. Heat exchanger; 13. Hot water exchanger pipe assembly; 14. Liquid storage tank connecting pipe; 15. Secondary liquid storage tank; 16. Display screen assembly; 17. Water pump one; 18. Bolt hole; 19. Liquid cooling main unit casing; 20. AC power distribution assembly; 21. Water pump two; 22. AC to DC power supply; 23. DC power supply; 24. Water pump three; 25. Through hole; 26. Heat dissipation hole. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0023] This application discloses a top-mounted liquid-cooled main unit device for a charger. (Refer to...) Figure 1The system includes a radiator and condenser assembly 1 and a liquid cooling main unit housing 19. The liquid cooling main unit housing 19 is internally mounted to a fixed frame 7 by screws. A radiator water pump 5 is mounted on the fixed frame 7. A compressor assembly 8 is located on one side of the radiator water pump 5. A primary liquid storage tank 9 and a secondary liquid storage tank 15 are located on one side of the compressor assembly 8. A water pump group is mounted on the outer wall of the secondary liquid storage tank 15. The water pump group includes a first water pump 17, a second water pump 21, and a third water pump 24. A thermal management controller 10 is mounted on the primary liquid storage tank 9. A heat exchanger 12 is located on one side of the thermal management controller 10. The radiator and condenser assembly 1, the radiator water pump 5, the compressor assembly 8, the primary liquid storage tank 9, the thermal management controller 10, the heat exchanger 12, the secondary liquid storage tank 15, and the water pump group are all fixed on the fixed frame 7.

[0024] like Figure 2 As shown, a compressor exhaust pipe 3 is connected to the radiator and condenser assembly 1. A liquid pipe 6 is fixed to the compressor exhaust pipe 3. One end of the liquid pipe 6 is connected to the compressor assembly 8. A suction pipe 11 is connected between the compressor assembly 8 and the heat exchanger 12. A heat exchange water pipe assembly 13 is connected between the heat exchanger 12 and the primary liquid storage tank 9. A liquid storage tank connecting pipe 14 is connected between the primary liquid storage tank 9 and the secondary liquid storage tank 15. The condenser on the radiator and condenser assembly 1, together with the compressor exhaust pipe 3, liquid pipe 6, compressor assembly 8, suction pipe 11, and heat exchanger 12, constitute a phase change circulation loop for the refrigerant, and the cooling of the coolant is achieved in the heat exchanger 12.

[0025] In this application, the output end of the radiator and condenser assembly 1 is connected to the radiator outlet pipe 2, and the input end of the radiator and condenser assembly 1 is connected to the radiator inlet pipe 4. One end of the radiator outlet pipe 2 is connected to the secondary liquid storage tank 15, and one end of the radiator inlet pipe 4 is connected to the radiator water pump 5. The radiator on the radiator and condenser assembly 1, together with the radiator outlet pipe 2, the radiator inlet pipe 4, the radiator water pump 5, and the secondary liquid storage tank 15, constitute a two-stage cooling circulation loop for the coolant, which can achieve independent cooling of the coolant. The secondary liquid storage tank 15 is provided with multiple input connectors, and the multiple input connectors are respectively connected to water pump 17, water pump 21 and water pump 3 24, which independently dissipate heat to the external cooling system.

[0026] Combination Figure 3As shown, bolt holes 18 for positioning are provided at the bottom corners of the liquid-cooled main unit housing 19. The liquid-cooled main unit housing 19 has four liquid-cooled main unit fixing bolt holes 18 at the four bottom corners to facilitate the liquid-cooled main unit to be fixed on the top of the charging main unit. A through hole 25 is provided on one side of the bottom of the liquid-cooled main unit housing 19. The through hole 25 is used for the cooling water pipe, power harness and control harness between the liquid-cooled main unit and the charging main unit. Heat dissipation holes 26 are provided on the outer wall of the liquid-cooled main unit housing 19 to facilitate the dissipation of internal air.

[0027] In this application, the sidewalls of the liquid-cooled main unit housing 19 are sequentially equipped with a display assembly 16, an AC power distribution assembly 20, an AC-to-DC power supply 22, and a DC power supply 23 from one side to the other. The AC power distribution assembly 20 provides 380V AC power input and protection, while the AC-to-DC power supply 22 converts 380V AC power into DC power required by the compressor assembly 8 and provides input power to the DC power supply 23. The DC power supply 23 provides power to the fan on the radiator and condenser assembly 1, the radiator water pump 5, the thermal management controller 10, the display assembly 16, and the water pump unit.

[0028] In this application, the thermal management controller 10 collects relevant temperature and equipment status information and controls the working sequence of the fan, radiator water pump 5, compressor assembly 8, and water pump group on the radiator and condenser assembly 1. The display screen assembly 16 is used as an interactive medium for the operation and display of the working status of the top-mounted liquid cooling host device of the charger.

[0029] The implementation principle of the top-mounted liquid-cooled main unit device for a charger in this application is as follows:

[0030] During operation, the radiator and condenser assembly 1, compressor discharge pipe 3, liquid pipe 6, compressor assembly 8, suction pipe 11, and heat exchanger 12 form a phase change circulation loop for the refrigerant. The compressor assembly 8 operates, driving the refrigerant to circulate in the loop, causing it to continuously undergo phase change, absorb and release heat, and finally achieve the purpose of cooling the coolant in the heat exchanger 12.

[0031] On the one hand, the heat exchanger 12 is connected to the primary liquid storage tank 9 via the heat exchange water pipe assembly 13. The primary liquid storage tank 9 is then connected to the secondary liquid storage tank 15 via the liquid storage tank connecting pipe 14, forming a conduction path for the coolant. On the other hand, the radiator of the radiator and condenser assembly 1, together with the radiator outlet pipe 2, the radiator inlet pipe 4, the radiator water pump 5, and the secondary liquid storage tank 15, forms a two-stage cooling circulation loop for the coolant, enabling the coolant to dissipate heat independently and maintain the coolant within a reasonable temperature range.

[0032] Furthermore, the secondary liquid storage tank 15 is connected to water pump 17, water pump 21, and water pump 3 24 via multiple input connectors, thereby independently dissipating heat from the external system to be cooled. The AC power distribution assembly 20 is responsible for receiving 380V AC power and implementing protection. The AC-to-DC power supply 22 converts the AC power into the DC power required by the compressor and simultaneously supplies power to the DC power supply 23. The DC power supply 23 supplies power to key components such as the fan, water pumps, thermal management controller 10, and display assembly 16 within the device. The thermal management controller 10 collects temperature and equipment status information in real time, accurately controls the working sequence of each component, ensures efficient and stable system operation, and finally displays the working status through the display assembly 16. It can also receive operation commands for real-time monitoring and adjustment.

[0033] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0034] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0035] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A top-mounted liquid-cooled main unit for a charger, comprising a radiator and condenser assembly (1) and a liquid-cooled main unit housing (19), characterized in that: A fixed frame (7) is fixedly installed inside the outer shell (19) of the liquid cooling host unit. A radiator water pump (5) is installed on the fixed frame (7). A compressor assembly (8) is provided on one side of the radiator water pump (5). A primary liquid storage tank (9) and a secondary liquid storage tank (15) are provided on one side of the compressor assembly (8). A thermal management controller (10) is installed on the primary liquid storage tank (9). A heat exchanger (12) is provided on one side of the thermal management controller (10). A water pump group is installed on the outer wall of the secondary liquid storage tank (15). The water pump group includes a first water pump (17), a second water pump (21), and a third water pump (24).

2. The top-mounted liquid-cooled main unit device for a charger according to claim 1, characterized in that: The liquid-cooled host unit housing (19) has a display screen assembly (16), an AC power distribution assembly (20), an AC to DC power supply (22), and a DC power supply (23) installed sequentially from one side to the other on its sidewall.

3. The top-mounted liquid-cooled main unit device for a charger according to claim 1, characterized in that: The radiator and condenser assembly (1) is connected to a compressor exhaust pipe (3), and a liquid pipe (6) is fixed on the compressor exhaust pipe (3). One end of the liquid pipe (6) is connected to the compressor assembly (8).

4. The top-mounted liquid-cooled main unit device for a charger according to claim 1, characterized in that: A suction pipe (11) is connected between the compressor assembly (8) and the heat exchanger (12), a heat exchange water pipe assembly (13) is connected between the heat exchanger (12) and the primary liquid storage tank (9), and a liquid storage tank connecting pipe (14) is connected between the primary liquid storage tank (9) and the secondary liquid storage tank (15).

5. The top-mounted liquid-cooled main unit device for a charger according to claim 1, characterized in that: The output end of the radiator and condenser assembly (1) is connected to the radiator outlet pipe (2), the input end of the radiator and condenser assembly (1) is connected to the radiator inlet pipe (4), one end of the radiator outlet pipe (2) is connected to the secondary liquid storage tank (15), one end of the radiator inlet pipe (4) is connected to the radiator water pump (5), and the secondary liquid storage tank (15) is provided with multiple input connectors, which are connected to water pump one (17), water pump two (21) and water pump three (24) respectively.

6. The top-mounted liquid-cooled main unit device for a charger according to claim 1, characterized in that: Bolt holes (18) for positioning are provided at the bottom corners of the liquid cooling host housing (19), a through hole (25) is provided on one side of the bottom of the liquid cooling host housing (19), and a heat dissipation hole (26) is provided on the outer wall of the liquid cooling host housing (19).

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