Thermal management air conditioning system, electrical cabinet and energy storage equipment

Abstract

The utility model discloses a thermal management air-conditioning system which comprises a partition plate, an inner circulation assembly and an outer circulation assembly, an inner circulation space and an outer circulation space are formed on the two sides of the partition plate respectively, the outer circulation assembly is arranged in the outer circulation space, the inner circulation assembly is arranged in the inner circulation space, and the outer circulation assembly is arranged in the outer circulation space. An air inlet through hole and an air outlet through hole are formed in the partition plate; a first check curtain is arranged on the air inlet port so as to open or close the air inlet port; and a second check curtain is arranged on the air outlet through hole so as to open or close the air outlet through hole. According to the thermal management air-conditioning system, high-power devices such as a compressor and a throttler do not need to be started in the low-temperature environment, the operation power consumption of the thermal management air-conditioning system in the low-temperature environment can be effectively reduced, and the thermal management efficiency and reliability of the thermal management air-conditioning system in the low-temperature environment are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage, in particular to a thermal management air conditioning system, an electrical cabinet and an energy storage device. Background Art

[0002] With the development of new energy technologies, energy storage devices are increasingly widely used, and energy storage devices have high requirements for the stability and reliability of temperature control. In the energy storage cabinets of existing energy storage devices, a water cooling system or an air cooling system is usually provided to cool energy storage battery cells or thermal management objects. The water cooling system, the compressor, the fan or other components of the wind energy device need to be in an operating state for a long time, which results in high energy consumption of existing energy storage devices; in addition, the reliability of the compressor of the water cooling system and the air cooling system will decrease at low temperatures, which may lead to a reduction in the internal thermal management efficiency of the energy storage device, thereby affecting the operating reliability of the energy storage device. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a thermal management air conditioning system to solve the problems of high energy consumption and low reliability of the thermal management of existing energy storage devices.

[0004] To solve the above technical problem, the technical solution adopted by the utility model is: a thermal management air conditioning system, including a partition, an internal circulation component and an external circulation component. Inner circulation spaces and an external circulation space are respectively formed on both sides of the partition. The external circulation component is arranged in the external circulation space, the internal circulation component is arranged in the internal circulation space, and an air inlet opening and an air outlet opening are arranged on the partition; a first curtain is arranged on the air inlet opening to open or close the air inlet opening; a second curtain is arranged on the air outlet opening to open or close the air outlet opening.

[0005] Further, both the first curtain and the second curtain include a louver curtain and a travel switch, and the travel switch is in transmission connection with the louver curtain to enable the travel switch to drive the louver curtain to open or close the air inlet opening or the air outlet opening.

[0006] Further, it further includes a main control module, and the main control module is electrically connected to the travel switch to enable the main control module to control the start and stop of the travel switch.

[0007] Further, it further includes a temperature sensor, the temperature sensor is arranged in the external circulation space, and the temperature sensor is electrically connected to the main control module.

[0008] Further, the internal circulation component includes a first fan, and the external circulation component includes a second fan.

[0009] Further, the air inlet end of the first fan is arranged on the side close to the partition board, and the air inlet end of the second fan is arranged on the side close to the partition board.

[0010] Further, the inner circulation component includes a condenser, the outer circulation component includes a throttle, an evaporator and a compressor. The input ends of the condenser, the throttle, the evaporator and the compressor are connected in sequence, and the output end of the compressor is connected to the condenser.

[0011] Further, the outer circulation component further includes a first fan, and the air outlet end of the first fan faces the condenser; the inner circulation component further includes a second fan, and the air outlet end of the second fan faces the evaporator.

[0012] Another object of the present invention is to provide an electrical cabinet, including the above-mentioned thermal management air-conditioning system.

[0013] Another object of the present invention is to provide an energy storage device, including the above-mentioned electrical cabinet and energy storage battery cores arranged in the electrical cabinet.

[0014] The beneficial effect of the present invention is that: the thermal management air-conditioning system provided by the present invention does not need to turn on high-power devices such as compressors and throttles in a low-temperature environment, which can effectively reduce the operating power consumption of the thermal management air-conditioning system in a low-temperature environment, and ensure the efficiency and reliability of the thermal management of the thermal management air-conditioning system in a low-temperature environment. Description of the Drawings

[0015] Figure 1 It is the working principle diagram of the natural air-cooling mode of the thermal management air-conditioning system of the present invention in a low-temperature environment in one embodiment;

[0016] Figure 2 It is the working principle diagram of the refrigeration mode of the thermal management air-conditioning system of the present invention in one embodiment.

[0017] Label Description:

[0018] 1, partition board; 2, inner circulation space; 3, outer circulation space; 4, air inlet port; 5, air outlet port; 6, first curtain; 7, second curtain; 8, temperature sensor; 9, first fan; 10, second fan; 11, condenser; 12, throttle; 13, evaporator; 14, compressor. Detailed Embodiments

[0019] To describe the technical content, the achieved objectives and the effects of the present invention in detail, the following is described in conjunction with the embodiments and with reference to the drawings.

[0020] Please refer to Figure 1 AndFigure 2 A thermal management air-conditioning system comprises a partition 1, an internal circulation component and an external circulation component, wherein an internal circulation space 2 and an external circulation space 3 are respectively formed on both sides of the partition 1, the external circulation component is arranged in the external circulation space 3, and the internal circulation component is arranged in the internal circulation space 2, and an air inlet 4 and an air outlet 5 are arranged on the partition 1; a first curtain 6 is arranged on the air inlet 4 to open or close the air inlet 4; a second curtain 7 is arranged on the air outlet 5 to open or close the air outlet 5.

[0021] As can be seen from the above description, the beneficial effect of the utility model is that the thermal management air conditioning system provided by the utility model can control the connection state of the air inlet 4 and the air outlet 5 through the first curtain 6 and the second curtain 7; when the ambient temperature is low, the first curtain 6 and the second curtain 7 are controlled to open the air inlet 4 and the air outlet 5 respectively, and the internal circulation component and the external circulation component are used to form a cooling loop between the internal circulation space 2 and the external circulation space 3, and the cold air of the external circulation space 3 is introduced into the internal circulation space 2 through the air inlet 4, and the cold air is exchanged with the thermal management object to generate hot air, and the hot air is introduced into the external circulation space 3 through the air outlet 5, so as to effectively use the air in the low temperature environment for cooling and heat exchange, so as to achieve the purpose of energy saving. In a low temperature environment, the thermal management air conditioning system does not need to turn on high-power devices such as the compressor 14 and the throttle 12, which can effectively reduce the operating power consumption of the thermal management air conditioning system in a low temperature environment, and ensure the efficiency and reliability of the thermal management of the thermal management air conditioning system in a low temperature environment.

[0022] Furthermore, the first barrier curtain 6 and the second barrier curtain 7 both include venetian blinds and travel switches, and the travel switch is transmission-connected to the venetian blinds so that the travel switch drives the venetian blinds to open or close the air inlet 4 or the air outlet 5 .

[0023] As can be seen from the above description, the travel switch can control the opening or closing of the venetian blind, so that the first barrier curtain 6 and the second barrier curtain 7 can respectively control the connection state between the air inlet 4 and the air outlet 5 .

[0024] Furthermore, it also includes a main control module, which is electrically connected to the travel switch so that the main control module controls the start and stop of the travel switch.

[0025] Furthermore, it also includes a temperature sensor 8, which is arranged in the external circulation space 3 and is electrically connected to the main control module.

[0026] As described above, the main control module can control the connection state of the air inlet port 4 and the air outlet port 5 according to the temperature of the outer circulation space 3; when the temperature of the outer circulation space 3 meets the low temperature condition, it controls the air inlet port 4 and the air outlet port 5 to open, so as to use the cold air in the outer circulation space 3 to exchange heat and cool the heat management object; when the temperature of the outer circulation space 3 does not meet the low temperature condition, it controls the air inlet port 4 and the air outlet port 5 to close, ensuring the sealing of the inner circulation space 2, so as to avoid the heat management efficiency of the inner circulation space 2 being affected by the hot air in the outer circulation space 3.

[0027] Further, the inner circulation component includes a first fan 9, and the outer circulation component includes a second fan 10.

[0028] Further, the air inlet end of the first fan 9 is arranged towards the side close to the partition 1, and the air inlet end of the second fan 10 is arranged towards the side close to the partition 1.

[0029] As described above, in a low temperature environment, the first fan 9 and the second fan 10 can improve the efficiency of the cooling circuit's air inlet, heat exchange, and air outlet.

[0030] Further, the inner circulation component includes a condenser 11, and the outer circulation component includes a throttle 12, an evaporator 13, and a compressor 14. The input ends of the condenser 11, the throttle 12, the evaporator 13, and the compressor 14 are connected in sequence, and the output end of the compressor 14 is connected to the condenser 11.

[0031] Further, the outer circulation component further includes a first fan 9, and the air outlet end of the first fan 9 is arranged facing the condenser 11; the inner circulation component further includes a second fan 10, and the air outlet end of the second fan 10 is arranged facing the evaporator 13.

[0032] As described above, the first fan 9 is the condenser 11 fan, and the second fan 10 is the evaporator 13 fan.

[0033] An electric cabinet includes the above-mentioned heat management air conditioning system.

[0034] As described above, the electric cabinet at least has all the beneficial effects of the above-mentioned heat management air conditioning system.

[0035] An energy storage device includes the above-mentioned electric cabinet and energy storage battery cells arranged in the electric cabinet.

[0036] As described above, the energy storage device at least has all the beneficial effects of the above-mentioned heat management air conditioning system.

[0037] Embodiment 1

[0038] Please refer to Figures 1 to 2, Embodiment 1 of the present utility model is: Embodiment 1 of the present utility model provides an energy storage device, which includes an electrical cabinet and an energy storage battery cell arranged in the electrical cabinet. Since the energy storage battery cell needs to dissipate heat during operation, the electrical cabinet is provided with a thermal management air-conditioning system.

[0039] Among them, the thermal management air-conditioning system includes a partition 1, an internal circulation component and an external circulation component. The two sides of the partition 1 form an internal circulation space 2 and an external circulation space 3 respectively. The external circulation component is arranged in the external circulation space 3, and the internal circulation component is arranged in the internal circulation space 2. The partition 1 is provided with an air inlet 4 and an air outlet 5; the air inlet 4 is provided with a first curtain 6 to open or close the air inlet 4; the air outlet 5 is provided with a second curtain 7 to open or close the air outlet 5.

[0040] Specifically, in this embodiment, the partition 1 of the thermal management air conditioning system can be a side wall of the electrical cabinet, that is, an air inlet and an air outlet are provided on one side wall of the electrical cabinet, the external circulation space 3 is the external space of the electrical cabinet, and the internal circulation space 2 is the internal space of the electrical cabinet.

[0041] In detail, in the present embodiment, the first barrier curtain 6 and the second barrier curtain 7 both include a venetian blind and a travel switch, wherein the travel switch is transmission-connected to the venetian blind so that the travel switch can drive the venetian blind to open or close.

[0042] The thermal management air conditioning system includes a main control module and a temperature sensor 8. The temperature sensor 8 is arranged in the external circulation space 3 to detect the temperature of the external circulation space 3. The main control module is electrically connected to the temperature sensor 8. The main control module can control the start and stop of the travel switch according to the temperature parameters of the temperature sensor 8.

[0043] In this embodiment, the internal circulation component includes a condenser 11 and a first fan 9, and the external circulation component includes a throttle 12, an evaporator 13, a compressor 14 and a second fan 10. The input ends of the condenser 11, the throttle 12, the evaporator 13 and the compressor 14 are connected in sequence, and the output end of the compressor 14 is connected to the condenser 11; the air inlet end of the first fan 9 is arranged toward the side close to the partition 1, and the air outlet end of the first fan 9 is arranged opposite to the condenser 11; the air inlet end of the second fan 10 is arranged toward the side close to the partition 1, and the air outlet end of the second fan 10 is arranged opposite to the evaporator 13.

[0044] In this embodiment, the thermal management air conditioning system can have two different operating modes. The first operating mode is the natural air cooling mode. In the low-temperature state, high-power devices such as the compressor 14 and the throttle 12 of the thermal management system do not work. Through the air inlet port 4 and the air outlet port 5, a cooling circuit is formed between the internal circulation space 2 and the external circulation space 3, and the energy storage battery cells are heat-exchanged and cooled by the cold air in the low-temperature environment. The second operating mode is the refrigeration mode. In the normal-temperature state, the thermal management air conditioning system refrigerates through high-power devices such as the compressor 14 and the throttle 12 to heat-exchange and cool the energy storage battery cells arranged in the internal circulation space 2.

[0045] In this embodiment, the target temperature of the low-temperature operating mode can be set in the main control module. The temperature sensor 8 can detect the temperature of the external environment of the electrical cabinet. When the external environment temperature of the electrical cabinet is lower than the target temperature, the thermal management air conditioning system executes the natural air cooling mode. When the external environment temperature of the electrical cabinet is higher than the target temperature, the thermal management air conditioning system executes the refrigeration mode.

[0046] Specifically, please refer to Figure 1 , in the natural air cooling mode, the main control module controls the travel switches of the first shutter 6 and the second shutter 7 to open the louvers of the first shutter 6 and the second shutter 7 respectively, so that both the air inlet port 4 and the air outlet port 5 are in the open state. At the same time, the first fan 9 and the second fan 10 are turned on, so that a cooling circuit can be formed between the internal circulation space 2 and the external circulation space 3. The cold air with a low temperature in the external circulation space 3 forms cold air through the air inlet port 4, and the cold air exchanges heat with the energy storage battery cells in the internal circulation space 2 to cool the energy storage battery cells. The air after heat exchange in the internal circulation space 2 is discharged through the air outlet port 5. For the thermal management air conditioning system provided in this embodiment, the compressor 14 and the throttle 12 do not need to work, but the cold air in the low-temperature environment is used to cool and heat-exchange the energy storage battery cells in the electrical cabinet, which can effectively reduce the operating power consumption of the thermal management air conditioning system in the low-temperature environment and achieve the purpose of energy saving.

[0047] As an example: The thermal management air conditioning system applied to energy storage devices in areas with relatively low ambient temperatures throughout the year can achieve significant energy-saving effects. Since the operating conditions of industrial and commercial energy storage are relatively fixed, the usage revenue can be calculated according to the specific usage area. Assuming that the cooling capacity demand of the energy storage device thermal management is 5 kW and the usage location is Taizhou City, according to the annual temperature in Taizhou City in 2022, the average ambient temperature in spring, autumn, and winter (January, February, March, April, May, November, and December) is lower than 18°C. In this ambient temperature condition, the thermal management air conditioning system provided in this embodiment can operate in the natural air cooling mode, which can effectively save the power consumption of the compressor 14 of the thermal management air conditioning system. According to the working condition of 2 charges and 2 discharges of industrial and commercial energy storage for 8 hours per day, the energy-saving energy consumption of using the thermal management air conditioning system provided in this embodiment is 2.5 kwh * 8 hours / day * 180 days = 3600 kwh / year; calculated according to the 10-year life of the thermal management air conditioning system provided in this embodiment, the total energy-saving energy consumption during its life cycle is 3600 * 10 = 36000 kwh. Therefore, the energy-saving benefit effect of the thermal management air conditioning system designed in this embodiment is significant.

[0048] In addition, when the thermal management air conditioning system provided in this embodiment is applied to a low-temperature environment, the compressor 14 does not need to be enabled, and the compressor 14 is a relatively large noise source of industrial air conditioners, which can reduce the impact of the noise of the thermal management air conditioning system of the energy storage device on residents.

[0049] When the ambient temperature does not meet the operating condition of the natural air cooling mode of the thermal management air conditioning system, the thermal management air conditioning system can enable the refrigeration mode. The main control module controls the travel switches of the first shutter 6 and the second shutter 7 to close the louvers of the first shutter 6 and the second shutter 7 respectively; the compressor 14 can compress the low-temperature and low-pressure refrigerant gas from the evaporator 13 into a high-temperature and high-pressure refrigerant gas, condense the refrigerant into a high-temperature and high-pressure liquid through the condenser 11, and then throttle it into a low-pressure refrigerant gas through the throttle 12. The low-temperature and low-pressure refrigerant gas is sucked into the compressor 14 again, and so on, repeating the cycle to complete the refrigeration process; during this process, since the air inlet port 4 and the air outlet port 5 are in a closed state, the inner circulation space 2 forms an independent and sealed space, avoiding the hot air in the outer circulation space 3 from entering the inner circulation space 2 and affecting the cooling and heat exchange efficiency of the energy storage battery cells.

[0050] In summary, the thermal management air conditioning system provided by the present utility model does not need to turn on high-power devices such as the compressor 14 and the throttle 12 in a low-temperature environment, which can effectively reduce the operating power consumption of the thermal management air conditioning system in a low-temperature environment and ensure the efficiency and reliability of the thermal management of the thermal management air conditioning system in a low-temperature environment.

[0051] The above are only embodiments of the present utility model, and thus do not limit the patent scope of the present utility model. Any equivalent transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in the relevant technical fields, shall be similarly included in the patent protection scope of the present utility model.

Claims

1. A thermal management air conditioning system, characterized in that, It includes a partition board, an inner circulation component and an outer circulation component. Inner and outer circulation spaces are respectively formed on both sides of the partition board. The outer circulation component is arranged in the outer circulation space, and the inner circulation component is arranged in the inner circulation space. An air inlet opening and an air outlet opening are provided on the partition board; a first shutter is provided on the air inlet opening to open or close the air inlet opening; a second shutter is provided on the air outlet opening to open or close the air outlet opening.

2. The thermal management air conditioning system according to claim 1, wherein Both the first shutter and the second shutter include a louver curtain and a travel switch. The travel switch is in transmission connection with the louver curtain so that the travel switch drives the louver curtain to open or close the air inlet opening or the air outlet opening.

3. The thermal management air conditioning system according to claim 2, characterized in that, It further includes a main control module. The main control module is electrically connected to the travel switch so that the main control module controls the start and stop of the travel switch.

4. The thermal management air conditioning system according to claim 3, wherein, It further includes a temperature sensor. The temperature sensor is arranged in the outer circulation space and is electrically connected to the main control module.

5. The thermal management air conditioning system according to claim 1, characterized in that, The inner circulation component includes a first fan, and the outer circulation component includes a second fan.

6. The thermal management air conditioning system according to claim 5, wherein The air inlet end of the first fan is arranged towards the side close to the partition board, and the air inlet end of the second fan is arranged towards the side close to the partition board.

7. The thermal management air conditioning system according to claim 1, wherein The inner circulation component includes a condenser, and the outer circulation component includes a throttle, an evaporator and a compressor. The input ends of the condenser, the throttle, the evaporator and the compressor are connected in sequence, and the output end of the compressor is connected to the condenser.

8. The thermal management air conditioning system according to claim 7, wherein, The outer circulation component further includes a first fan, and the air outlet end of the first fan is arranged facing the condenser; the inner circulation component further includes a second fan, and the air outlet end of the second fan is arranged facing the evaporator.

9. An electrical cabinet, characterized in that, It includes the thermal management air conditioning system according to any one of claims 1-8.

10. A energy storage device, characterized in that, It includes the electrical cabinet according to claim 9 and an energy storage battery cell arranged in the electrical cabinet.

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