Energy storage air conditioner

Abstract

The embodiment of the invention provides an energy storage air conditioner. The energy storage air conditioner comprises a secondary refrigerant circulating system and a temperature control system. The secondary refrigerant circulating system comprises a water pump; the temperature control system comprises a driving plate assembly, a water pump driving plate, a press fan driving plate, a first water cooling plate, a second water cooling plate, a flow regulating valve and a three-way regulating valve; the energy storage air conditioner comprises a control part which is configured to control a water pump driving plate and a press fan driving plate to operate and control a flow regulating valve when the energy storage air conditioner operates in a refrigeration mode, so that the temperature of the water pump driving plate is equal to the higher temperature in a first set temperature and a second set temperature; wherein the first set temperature is obtained according to the temperature upper limit value of the water pump driving plate, and the second set temperature is obtained according to the dew point temperature of the driving plate assembly. The use performance of the energy storage air conditioner can be effectively improved.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, specifically to an energy storage air conditioner. Background Technology

[0002] Energy storage air conditioning is an air conditioning device that combines energy storage technology with traditional air conditioning functions. The control drive board, as one of the core components of an energy storage air conditioning system, is highly dependent on a stable and suitable temperature environment for its performance. Therefore, maintaining the temperature of the control drive board within a suitable range is a key requirement for the stable operation of energy storage air conditioning.

[0003] Currently, the main method for temperature control of energy storage air conditioning control drive boards is air cooling. This method involves placing a cooling fan near the control drive board and using the airflow generated by the fan to forcibly remove heat from the surface of the control drive board, thus achieving cooling. Summary of the Invention

[0004] The purpose of this invention is to solve the above-mentioned problems and other issues.

[0005] Another objective of this invention is to provide an energy storage air conditioner that can improve performance.

[0006] The purpose of this invention is not limited to the purposes mentioned above, and those skilled in the art will clearly understand other purposes not mentioned from the following description.

[0007] In some embodiments of this application, an energy storage air conditioner is provided, including a refrigerant circulation system and a temperature control system; wherein, the refrigerant circulation system includes:

[0008] A water pump is used to drive the refrigerant to circulate.

[0009] The temperature control system includes:

[0010] A drive board assembly includes a water pump drive board and a compressor fan drive board; the water pump drive board is used to drive the water pump to operate, and the compressor fan drive board is used to drive the compressor and / or fan to operate.

[0011] The first water-cooled plate is fitted to the water pump drive plate;

[0012] The second water-cooled plate is fitted to the compressor fan drive plate, and the outlet end of the second water-cooled plate is connected to the inlet end of the water pump.

[0013] A flow regulating valve is connected to the outlet end of the water pump and the inlet end of the first water-cooled plate, respectively.

[0014] A three-way regulating valve has a first port, a second port and a third port. The first port is connected to the outlet end of the first water-cooled plate, the second port is connected to the inlet end of the second water-cooled plate, and the third port is connected to the inlet end of the water pump.

[0015] The energy storage air conditioner also includes:

[0016] The control unit is configured to:

[0017] When the energy storage air conditioner is in cooling mode, it controls the operation of the water pump drive board and the compressor fan drive board, and controls the flow regulating valve so that the temperature of the water pump drive board is equal to the higher of the first set temperature and the second set temperature; wherein, the first set temperature is obtained based on the upper limit of the temperature of the water pump drive board, and the second set temperature is obtained based on the dew point temperature of the drive board assembly.

[0018] The above technical solution has the following advantages or beneficial effects: A first water-cooled plate and a second water-cooled plate are respectively attached to the water pump drive plate and the compressor fan drive plate. When the energy storage air conditioner is in cooling mode, the water pump drive plate drives the water pump, and the compressor fan drive plate drives the compressor and / or fan. The refrigerant can flow sequentially from the outlet end of the water pump to the inlet end of the first water-cooled plate, reaching the outlet end of the first water-cooled plate, thereby efficiently exchanging heat with the water pump drive plate within the first water-cooled plate. Furthermore, the refrigerant can flow sequentially from the outlet end of the first water-cooled plate to the inlet end of the second water-cooled plate, reaching the outlet end of the second water-cooled plate, thereby efficiently exchanging heat with the compressor fan drive plate within the second water-cooled plate.

[0019] When the energy storage air conditioner is operating in cooling mode, the flow regulating valve is also controlled to ensure that the temperature of the water pump drive board is equal to the higher of the first set temperature and the second set temperature. The first set temperature is obtained based on the upper limit of the water pump drive board temperature, and the second set temperature is obtained based on the dew point temperature of the drive board assembly. By controlling the flow regulating valve to accurately adjust the temperature of the water pump drive board to the higher of the first and second set temperatures, it is possible to ensure that the water pump drive board is stably within a suitable temperature range. This solves the problem that the temperature of the drive board cannot be stably maintained within a suitable temperature range due to the low heat exchange efficiency of the air-cooled solution, thereby effectively improving the performance of the energy storage air conditioner.

[0020] In some embodiments of this application, an energy storage air conditioner is provided, wherein the control unit is further configured to:

[0021] When the energy storage air conditioner is in cooling mode, it controls the operation of the water pump drive board and the compressor fan drive board, and controls the three-way regulating valve so that the temperature of the compressor fan drive board is equal to the higher of the second set temperature and the third set temperature; wherein, the third set temperature is obtained based on the upper limit value of the temperature of the compressor fan drive board.

[0022] The above technical solution has the following advantages or beneficial effects: When the energy storage air conditioner is running in cooling mode, by controlling the three-way regulating valve, the temperature of the compressor fan drive board can be accurately made equal to the higher of the second and third set temperatures. This ensures that the compressor fan drive board is within a suitable temperature range, solving the problem that the temperature of the control drive board cannot be stably kept within a suitable temperature range due to the low heat exchange efficiency of the air-cooled solution. In this way, the performance of the energy storage air conditioner can be effectively improved.

[0023] In some embodiments of this application, an energy storage air conditioner is provided, wherein the control unit is further configured to:

[0024] When the energy storage air conditioner is operating in cooling mode, if any of the following conditions are detected and the duration reaches more than the first duration, the flow regulating valve and the three-way regulating valve will be opened and controlled.

[0025] Condition 1: The temperature of the water pump drive board and the temperature of the compressor fan drive board both reach or exceed the ambient air temperature of the environment where the drive board assembly is located;

[0026] Condition 2: The temperature of the water pump drive board reaches or exceeds the first set temperature;

[0027] Condition 3: The temperature of the compressor fan drive board reaches or exceeds the third set temperature; wherein the third set temperature is obtained based on the upper limit value of the temperature of the compressor fan drive board.

[0028] The above technical solution has the following advantages or beneficial effects: When the temperature of the water pump drive board and the compressor fan drive board are both detected to be above the ambient air temperature of the environment where the drive board assembly is located, and the duration is above the first duration, it indicates that the temperature of the drive board assembly is currently high. Then, the flow regulating valve and the three-way regulating valve can be opened and controlled to accurately regulate the temperature of the drive board assembly, so as to ensure that the drive board assembly is within a suitable temperature range. This solves the problem that the temperature of the drive board cannot be stably controlled within a suitable temperature range due to the low heat exchange efficiency of the air-cooled solution, thereby effectively improving the performance of the energy storage air conditioner.

[0029] When the temperature of the water pump drive board is detected to be above the first set temperature and the duration is above the first set time, it indicates that the temperature of the water pump drive board is currently high. Then, the flow regulating valve and the three-way regulating valve can be opened and controlled to accurately regulate the temperature of the water pump drive board, so as to ensure that the water pump drive board is within a suitable temperature range. This solves the problem that the temperature of the control drive board cannot be stably kept within a suitable temperature range due to the low heat exchange efficiency of the air-cooled solution, thereby effectively improving the performance of the energy storage air conditioner.

[0030] When the temperature of the water pump drive board is detected to reach or exceed the third set temperature and the duration exceeds the first duration, it indicates that the temperature of the compressor fan drive board is currently high. In this case, the flow regulating valve and the three-way regulating valve can be opened and controlled to accurately regulate the temperature of the compressor fan drive board, ensuring that the compressor fan drive board is within a suitable temperature range. This solves the problem that the temperature of the control drive board cannot be stably kept within a suitable temperature range due to the low heat exchange efficiency of the air-cooled solution, thereby effectively improving the performance of the energy storage air conditioner.

[0031] In some embodiments of this application, an energy storage air conditioner is provided, wherein the refrigerant circulation system includes a heater, and the control unit is further configured to:

[0032] When the energy storage air conditioner is in heating mode, it controls the operation of the heater and the water pump drive board, and controls the flow regulating valve so that the temperature of the water pump drive board is equal to the higher of the first set temperature and the second set temperature.

[0033] The above technical solution has the following advantages or beneficial effects: When the energy storage air conditioner is operating in heating mode, the heater and water pump drive board are controlled to operate. By controlling the flow regulating valve, the temperature of the water pump drive board is made equal to the higher of the first set temperature and the second set temperature. This allows for accurate adjustment of the water pump drive board temperature, ensuring that the water pump drive board is within a suitable temperature range. This solves the problem that the temperature of the control drive board cannot be stably kept within a suitable temperature range due to the low heat exchange efficiency of the air-cooled solution, thereby effectively improving the performance of the energy storage air conditioner.

[0034] In some embodiments of this application, an energy storage air conditioner is provided, wherein the control unit is further configured to:

[0035] When the energy storage air conditioner is operating in self-circulation mode, it controls the operation of the water pump drive board and controls the flow regulating valve so that the temperature of the water pump drive board is equal to the higher of the first set temperature and the second set temperature.

[0036] The above technical solution has the following advantages or beneficial effects: When the energy storage air conditioner operates in self-circulation mode, the water pump drive board is controlled to operate. By controlling the flow regulating valve, the temperature of the water pump drive board is made equal to the higher of the first set temperature and the second set temperature. This allows for accurate adjustment of the water pump drive board temperature, ensuring that the water pump drive board is within a suitable temperature range. This solves the problem that the temperature of the control drive board cannot be stably kept within a suitable temperature range due to the low heat exchange efficiency of the air-cooled solution, thereby effectively improving the performance of the energy storage air conditioner.

[0037] In some embodiments of this application, an energy storage air conditioner is provided, wherein the control unit is further configured to:

[0038] When the energy storage air conditioner is operating in heating mode or self-circulation mode, if any of the following conditions are detected and the duration reaches the second duration or more, the flow regulating valve will be opened and controlled.

[0039] Condition 1: The temperature of the water pump drive board reaches or exceeds the ambient air temperature of the environment where the drive board assembly is located;

[0040] Condition 2: The temperature of the water pump drive board reaches or exceeds the first set temperature.

[0041] The above technical solution has the following advantages or beneficial effects: When the temperature of the water pump drive board is detected to be above the ambient air temperature of the environment where the drive board assembly is located, and the duration is above the second duration, it indicates that the temperature of the water pump drive board is currently high. Then, the flow regulating valve can be opened and controlled to accurately regulate the temperature of the water pump drive board, so as to ensure that the water pump drive board is within a suitable temperature range. This solves the problem that the temperature of the drive board cannot be stably kept within a suitable temperature range due to the low heat exchange efficiency of the air-cooled solution, thereby effectively improving the performance of the energy storage air conditioner.

[0042] When the temperature of the water pump drive board is detected to be above the first set temperature and the duration is above the second set time, it indicates that the temperature of the water pump drive board is currently high. The flow regulating valve can then be opened and controlled to accurately regulate the temperature of the water pump drive board, ensuring that the water pump drive board is within a suitable temperature range. This solves the problem that the temperature of the control drive board cannot be stably kept within a suitable temperature range due to the low heat exchange efficiency of the air-cooled solution, thereby effectively improving the performance of the energy storage air conditioner.

[0043] In some embodiments of this application, an energy storage air conditioner is provided, wherein the control unit is further configured to:

[0044] Obtain the ambient air temperature and relative humidity of the environment where the drive board assembly is located;

[0045] Obtain the reference atmospheric pressure and the real-time atmospheric pressure, and calculate a first ratio of the real-time atmospheric pressure to the reference atmospheric pressure;

[0046] The dew point temperature of the drive board assembly is calculated based on the ambient air temperature, the ambient air relative humidity, and the first ratio.

[0047] In some embodiments of this application, an energy storage air conditioner is provided, wherein the control unit is further configured to:

[0048] Calculate the product of the first constant and the ambient air temperature, and the sum of the second constant and the ambient air temperature;

[0049] Calculate the second ratio obtained by dividing the product by the sum;

[0050] The dew point temperature of the drive board assembly is calculated based on the ambient relative humidity, the first ratio, the second ratio, and the third constant.

[0051] In some embodiments of this application, an energy storage air conditioner is provided, the energy storage air conditioner further comprising:

[0052] A temperature and humidity sensor is used to detect the ambient air temperature of the environment in which the drive board assembly is located;

[0053] An atmospheric pressure sensor is used to detect the relative humidity of the ambient air in the environment where the drive board assembly is located;

[0054] The drive board assembly, the temperature and humidity sensor, and the atmospheric pressure sensor are located inside the control cabinet.

[0055] The above technical solution has the following advantages or beneficial effects: by setting the drive board assembly, temperature and humidity sensor and atmospheric pressure sensor in the control cabinet, the temperature and humidity sensor can accurately detect the ambient air temperature, and the atmospheric pressure sensor can accurately detect the ambient air relative humidity.

[0056] In some embodiments of this application, an energy storage air conditioner is provided, wherein the control unit is further configured to:

[0057] When the energy storage air conditioner is in standby mode, the flow regulating valve and the three-way regulating valve are closed.

[0058] The effects of the above-mentioned technical solutions are not limited to those mentioned above. Those skilled in the art can clearly understand other effects not mentioned from the description in the claims. Attached Figure Description

[0059] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort. In the drawings:

[0060] Figure 1 This is a schematic diagram of the structure of an energy storage air conditioner provided in one embodiment of this application.

[0061] Figure 2 This is a structural schematic diagram of an energy storage air conditioner provided in another embodiment of this application.

[0062] Figure 3 This is a flowchart of the steps that the control unit can execute, provided in one embodiment of this application.

[0063] Figure 4 This is a flowchart of the steps that the control unit can execute, provided in another embodiment of this application.

[0064] Figure 5 This is a flowchart of the steps that the control unit can execute, provided in another embodiment of this application.

[0065] Figure 6 This is a flowchart of the steps that the control unit can execute, provided in another embodiment of this application.

[0066] Figure 7 This is a flowchart of the steps that the control unit can execute, provided in another embodiment of this application.

[0067] Figure 8 This is a flowchart of the steps that the control unit can execute, provided in another embodiment of this application.

[0068] Figure 9 This is a flowchart of the steps that the control unit can execute, provided in another embodiment of this application.

[0069] Figure 10 This is a structural schematic diagram of an energy storage air conditioner provided in another embodiment of this application.

[0070] Explanation of reference numerals in the attached drawings: 1: Water pump; 2: Drive board assembly; 21: Water pump drive board; 22: Compressor fan drive board; 3: First water-cooled plate; 4: Second water-cooled plate; 5: Flow regulating valve; 6: Three-way regulating valve; 7: Heater; 8: Compressor; 9: Fan; 10: Condenser; 11: Throttling valve; 12: Heat exchanger; 13: Temperature and humidity sensor; 14: Atmospheric pressure sensor. Detailed Implementation

[0071] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0072] The flowcharts shown in the accompanying drawings are merely illustrative and do not necessarily include all content and operations / steps, nor do they necessarily need to be executed in the described order. For example, some operations / steps can be broken down, while others can be combined or partially combined; therefore, the actual execution order may change depending on the actual situation. It should also be noted that "multiple" as mentioned in this application refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0073] The terms "first," "second," "third," and "fourth," etc., in the specification, claims, and drawings of this application are used to distinguish different objects, not to describe a particular order. The terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0074] When a structural element is mentioned as being "connected" or "in contact" with another structural element, it may mean that it is directly connected to or in contact with the other structural element, but it can also be understood as meaning that there are other structural elements between them. Conversely, when a structural element is mentioned as being "directly connected" or "directly in contact" with another structural element, it should be understood as meaning that there are no other structural elements between them.

[0075] Unless the context clearly indicates a different meaning, the singular form includes the plural form.

[0076] Energy storage air conditioning is an air conditioning device that combines energy storage technology with traditional air conditioning functions. The control drive board, as one of the core components of an energy storage air conditioning system, is highly dependent on a stable and suitable temperature environment for its performance. Therefore, maintaining the temperature of the control drive board within a suitable range is a key requirement for the stable operation of energy storage air conditioning.

[0077] Currently, the main method for temperature control of energy storage air conditioning control drive boards is air cooling. This method involves placing a cooling fan near the control drive board and using the airflow generated by the fan to forcibly remove heat from the surface of the control drive board, thus achieving cooling.

[0078] To address the aforementioned technical problems, this application proposes an energy storage air conditioner.

[0079] Figure 1 This is a schematic diagram of the structure of an energy storage air conditioner provided in one embodiment of this application. Figure 2 This is a structural schematic diagram of an energy storage air conditioner provided in another embodiment of this application.

[0080] The following is a detailed description of energy storage air conditioners.

[0081] See Figure 1 and Figure 2 As shown, in some embodiments, the energy storage air conditioner may include a refrigerant circulation system. The refrigerant in the refrigerant circulation system contains approximately 50% ethylene glycol. The refrigerant circulation system may include a water pump 1. The water pump 1 has an inlet end and an outlet end. The water pump 1 is a mechanical device for conveying the refrigerant and for driving the refrigerant to circulate. The water pump 1 may be a centrifugal pump. The water pump 1 may be a positive displacement pump. The water pump 1 may be a self-priming pump.

[0082] In some embodiments, the refrigerant circulation system may include a heater 7. The heater 7 is used to heat the refrigerant during the heating mode operation of the energy storage air conditioner to increase the refrigerant temperature. The heater 7 may be a PTC heater 7. The heater 7 may be a tubular heater 7. The heater 7 may be other types of heater 7.

[0083] In other embodiments, the operating power of heater 7 can directly affect the heating rate and heating temperature of the refrigerant. Therefore, the heating rate and heating temperature of the refrigerant can be controlled by adjusting the operating power of heater 7.

[0084] In some embodiments, the temperature control system may include a drive board assembly 2. The drive board assembly 2 is capable of driving various components in the energy storage air conditioner. The drive board assembly 2 may include a water pump drive board 21, which is capable of driving a water pump. The drive board assembly 2 may also include a compressor / fan 9 drive board 22, which is capable of driving the compressor 8 and / or the fan 9.

[0085] In some embodiments, the temperature control system may include a first water-cooled plate 3. The first water-cooled plate 3 has an inlet end and an outlet end. The first water-cooled plate 3 may be fitted to the water pump drive plate 21. When the refrigerant flows from the inlet end to the outlet end of the first water-cooled plate 3, the refrigerant in the first water-cooled plate 3 can exchange heat with the water pump drive plate 21, carrying away the heat of the water pump drive plate 21, thereby reducing the temperature of the water pump drive plate 21.

[0086] In some embodiments, the temperature control system may further include a second water-cooled plate 4. The second water-cooled plate 4 has an inlet end and an outlet end. The outlet end of the second water-cooled plate 4 can be connected to the inlet end of the water pump 1. The second water-cooled plate 4 can be fitted to the compressor fan 9 drive plate 22. When the refrigerant flows from the inlet end to the outlet end of the second water-cooled plate 4, the refrigerant in the second water-cooled plate 4 can exchange heat with the compressor fan 9 drive plate 22, removing the heat from the compressor fan 9 drive plate 22, thereby reducing the temperature of the compressor fan 9 drive plate 22.

[0087] In some embodiments, the temperature control system may include a flow regulating valve 5. The flow regulating valve 5 may be connected to the outlet end of the water pump 1 and the inlet end of the first water-cooled plate 3, respectively. The flow regulating valve 5 can be used to regulate the flow rate of the refrigerant from the outlet end of the water pump 1 to the inlet end of the first water-cooled plate 3.

[0088] In some embodiments, the temperature control system may include a three-way regulating valve 6. The three-way regulating valve 6 has a first port, a second port, and a third port. The first port of the three-way regulating valve 6 is connected to the outlet end of the first water-cooled plate 3. The second port of the three-way regulating valve 6 is connected to the inlet end of the second water-cooled plate 4. The third port of the three-way regulating valve 6 is connected to the inlet end of the water pump 1.

[0089] In some embodiments, when the water pump 1 is controlled to operate and the first and third ports of the flow regulating valve 5 and the three-way regulating valve 6 are opened, the refrigerant flows from the outlet end of the water pump 1 through the flow regulating valve 5, the inlet end of the first water-cooled plate 3, the outlet end of the first water-cooled plate 3, the first port of the three-way regulating valve 6, and the third port of the three-way regulating valve 6 to the inlet end of the water pump 1, thereby forming a separate heat dissipation cycle for the water pump drive plate 21.

[0090] In other embodiments, when the water pump 1 is controlled to operate and the first and second ports of the flow regulating valve 5 and the three-way regulating valve 6 are opened, the refrigerant flows from the outlet end of the water pump 1 through the flow regulating valve 5, the inlet end of the first water-cooled plate 3, the outlet end of the first water-cooled plate 3, the first port of the three-way regulating valve 6, and the second port of the three-way regulating valve 6 to the inlet end of the second water-cooled plate 4, and then flows from the inlet end of the second water-cooled plate 4 through the outlet end of the second water-cooled plate 4 to the inlet end of the water pump 1, thereby forming a common heat dissipation cycle for the water pump drive plate 21 and the compressor fan 9 drive plate 22.

[0091] In other embodiments, when the water pump 1 is operated and the first, second, and third ports of the flow regulating valve 5 and the three-way regulating valve 6 are opened, the refrigerant flows sequentially from the outlet of the water pump 1 through the flow regulating valve 5, the inlet of the first water-cooled plate 3, and the outlet of the first water-cooled plate 3 to the first port of the three-way regulating valve 6, and then flows from the first port of the three-way regulating valve 6 to its second and third ports respectively. The refrigerant flowing to the second port flows sequentially to the inlet of the second water-cooled plate 4 and the outlet of the second water-cooled plate 4 to the inlet of the water pump 1, thereby forming a common heat dissipation cycle for the water pump drive plate 21 and the compressor fan 9 drive plate 22; the refrigerant flowing to the third port flows to the inlet of the water pump 1, thereby forming a separate heat dissipation cycle for the water pump drive plate 21.

[0092] In some embodiments, the energy storage air conditioner may include a refrigerant circulation system. The refrigerant circulation system may include a compressor 8. The compressor 8 is the core component of the refrigeration cycle and is used to increase the pressure and temperature of the refrigerant. The compressor 8 compresses the gaseous refrigerant into a high-temperature, high-pressure gaseous refrigerant through mechanical work. The compressor 8 includes an outlet end for discharging the compressed, high-temperature, high-pressure gaseous refrigerant. The compressor 8 also includes an inlet end for receiving refrigerant flowing back to the compressor 8. The compressor 8 may be a scroll compressor 8. The compressor 8 may be a screw compressor 8. The compressor 8 may be other types of compressor 8.

[0093] In some embodiments, the refrigerant circulation system may include a fan 9. The fan 9 may drive an impeller to rotate, and the impeller blades generate thrust or suction on the air, thereby promoting airflow.

[0094] In some embodiments, the refrigerant cycle system may include a condenser 10. The condenser 10 is used to condense high-temperature, high-pressure gaseous refrigerant into high-pressure liquid refrigerant. The condenser 10 may be an air-cooled condenser 10. The condenser 10 may be a water-cooled condenser 10. The condenser 10 may be other types of condensers 10.

[0095] In some embodiments, the refrigerant circulation system may include a throttling valve 11. The throttling valve 11 can be used to reduce the pressure of high-pressure liquid refrigerant, allowing the refrigerant to enter a low-pressure environment and evaporate while absorbing heat. The throttling valve 11 can control the refrigerant flow rate and evaporation rate. The throttling valve 11 can be a thermostatic expansion valve. The throttling valve 11 can be an electronic expansion valve. The throttling valve 11 can be a capillary tube. The throttling valve 11 can be other types of throttling valves.

[0096] In some embodiments, the energy storage air conditioner may include a heat exchanger 12. The heat exchanger 12 can be used to exchange heat between the refrigerant in the refrigerant circulation system and the refrigerant in the refrigerant circulation system. The heat exchanger 12 may be a shell-and-tube heat exchanger. The heat exchanger 12 may be a plate heat exchanger. The heat exchanger 12 may be other types of heat exchangers.

[0097] In some embodiments, the energy storage air conditioner may further include a control unit.

[0098] In some embodiments, the control unit may be electrically connected to the water pump drive board 21, the compressor blower 9 drive board 22, the flow regulating valve 5, and the three-way regulating valve 6, respectively.

[0099] In some embodiments of this application, the control unit may be configured to perform the following steps:

[0100] When the energy storage air conditioner is in cooling mode, it controls the operation of the water pump drive board and the compressor fan drive board, and controls the flow regulating valve to make the temperature of the water pump drive board equal to the higher of the first set temperature and the second set temperature; wherein, the first set temperature is obtained based on the upper limit of the temperature of the water pump drive board, and the second set temperature is obtained based on the dew point temperature of the drive board assembly.

[0101] Furthermore, in some embodiments, the energy storage air conditioner may include a cooling mode. When the energy storage air conditioner operates in cooling mode, controlling the operation of the water pump drive board and the compressor fan drive board can open the flow regulating valve to bring it to a default opening degree N1%. N1% can be 50%, and N1% can also be adjusted to other values.

[0102] When the energy storage air conditioner operates in cooling mode, it controls the operation of the water pump drive board and the compressor fan drive board. The water pump drive board drives the water pump, and the compressor fan drive board drives the compressor and / or the fan. The refrigerant flows sequentially from the water pump outlet to the inlet of the first water-cooled plate and then to the outlet of the first water-cooled plate, thus efficiently exchanging heat with the water pump drive board within the first water-cooled plate. Similarly, the refrigerant flows sequentially from the outlet of the first water-cooled plate to the inlet of the second water-cooled plate and then to the outlet of the second water-cooled plate, thus efficiently exchanging heat with the compressor fan drive board within the second water-cooled plate.

[0103] In some embodiments, when the energy storage air conditioner is operating in cooling mode, a flow regulating valve is also controlled to ensure that the temperature of the water pump drive board is equal to the higher of a first set temperature and a second set temperature. The first set temperature is obtained based on the upper limit of the temperature of the water pump drive board, and the second set temperature is obtained based on the dew point temperature of the drive board assembly. By controlling the flow regulating valve to accurately adjust the temperature of the water pump drive board to the higher of the first and second set temperatures, it can be ensured that the water pump drive board is stably within a suitable temperature range. This solves the problem that the temperature of the drive board cannot be stably kept within a suitable temperature range due to the low heat exchange efficiency of the air-cooled solution, thereby effectively improving the performance of the energy storage air conditioner.

[0104] The temperature of the water pump drive board can be adjusted using the following formula:

[0105] Tp = max{Tpl - A, Td + C}

[0106] Wherein, Tp represents the temperature of the water pump drive board; Tpl-A represents the first set temperature; Td+C represents the second set temperature; max{Tpl-A, Td+C} represents the higher of the first and second set temperatures; Tpl represents the upper limit of the water pump drive board temperature; A is a constant, defaulting to 15, which can be modified; Td represents the dew point temperature of the drive board assembly; C is a constant, defaulting to 15, which can be modified.

[0107] In some embodiments, a PID (Proportional-Integral-Derivative) algorithm can be used to automatically control the flow regulating valve so that the temperature of the pump drive plate is equal to the higher of a first set temperature and a second set temperature. Other algorithms can also be used to control the flow regulating valve to achieve the higher of the first set temperature and the second set temperature.

[0108] In some embodiments of this application, the control unit may be configured to perform the following steps:

[0109] When the energy storage air conditioner is in cooling mode, it controls the operation of the water pump drive board and the compressor fan drive board, and controls the three-way regulating valve to make the temperature of the compressor fan drive board equal to the higher of the second set temperature and the third set temperature; wherein, the third set temperature is obtained based on the upper limit value of the temperature of the compressor fan drive board.

[0110] Furthermore, in some embodiments, when the energy storage air conditioner is operating in cooling mode, controlling the operation of the water pump drive board and the compressor fan drive board can open the three-way regulating valve to bring it to its default opening degree N2%. N2% can be 50%, and can also be adjusted to other values.

[0111] In some embodiments, when the energy storage air conditioner is operating in cooling mode, by controlling the three-way regulating valve to accurately make the temperature of the compressor fan drive board equal to the higher of the second set temperature and the third set temperature, it can be ensured that the compressor fan drive board is within a suitable temperature range. This solves the problem that the temperature of the control drive board cannot be stably kept within a suitable temperature range due to the low heat exchange efficiency of the air-cooled scheme, thereby effectively improving the performance of the energy storage air conditioner.

[0112] The temperature of the compressor blower drive plate can be adjusted using the following formula:

[0113] Tc = max{Tcl - B, Td + C}

[0114] Where Tc represents the temperature of the compressor fan drive board; Tcl-B represents the third set temperature; Td+C represents the second set temperature; max{Tcl-B, Td+C} represents the higher of the second and third set temperatures; Tcl represents the upper limit of the temperature of the compressor fan drive board; B is a constant, defaulting to 15, which can be modified; Td represents the dew point temperature of the drive board assembly; C is a constant, defaulting to 15, which can be modified.

[0115] In some embodiments of this application, the control unit may be configured to perform the following S110:

[0116] S110, when the energy storage air conditioner is in cooling mode, if the temperature of the water pump drive board and the temperature of the compressor fan drive board both reach above the ambient air temperature of the environment where the drive board components are located, and the duration reaches more than the first duration, then the flow regulating valve and the three-way regulating valve will be opened and controlled.

[0117] In S110, when the energy storage air conditioner is operating in cooling mode, if the temperature of the water pump drive board and the compressor fan drive board are both detected to be above the ambient air temperature of the environment where the drive board assembly is located, and the duration is above the first duration, it indicates that the temperature of the drive board assembly is currently high. In this case, the flow regulating valve and the three-way regulating valve can be opened and controlled to accurately regulate the temperature of the drive board assembly, so as to ensure that the drive board assembly is within a suitable temperature range. This solves the problem that the temperature of the drive board cannot be stably kept within a suitable temperature range due to the low heat exchange efficiency of the air-cooled solution, thereby effectively improving the performance of the energy storage air conditioner.

[0118] In some embodiments, when the energy storage air conditioner is operating in cooling mode, if the temperature of both the water pump drive board and the compressor fan drive board reaches or exceeds the ambient air temperature of the environment where the drive board assembly is located, and this temperature remains above a certain duration for at least a certain duration, the flow regulating valve and the three-way regulating valve can be opened to allow the flow regulating valve to reach its default opening degree N1% and the three-way regulating valve to reach its default opening degree N2%. Here, N1% can be 50% and N2% can be 50%. Both N1% and N2% can be adjusted to other values.

[0119] In some embodiments, the first duration can be 3 seconds. The first duration can be 5 seconds. The first duration can be adjusted to other values.

[0120] Condition 1 above can be expressed by the following formula:

[0121] Tmin={Tp,Tc}≥Te

[0122] Where Tp represents the temperature of the water pump drive board; Tc represents the temperature of the compressor fan drive board; Te represents the ambient air temperature of the environment where the drive board assembly is located; Tmin = {Tp, Tc} represents the lower of the temperatures of the water pump drive board and the compressor fan drive board; Tmin = {Tp, Tc} ≥ Te represents the lower of the temperatures of the water pump drive board and the compressor fan drive board reaching or exceeding the ambient air temperature of the environment where the drive board assembly is located.

[0123] See Figure 3 As shown, Figure 3 This is a flowchart illustrating the steps executable by the control unit according to an embodiment of this application. In some embodiments, S110 can be specifically divided into S111-S114 as follows:

[0124] S111, the cooling mode of the cold storage air conditioner.

[0125] S112 detects the temperature of the water pump drive board, the temperature of the compressor fan drive board, and the ambient air temperature of the drive board assembly.

[0126] S113, determine whether the temperature of the water pump drive board and the compressor fan drive board both reach or exceed the ambient air temperature of the environment where the drive board assembly is located.

[0127] S114, if the determination is yes, and the duration reaches more than the first duration, then open and control the flow regulating valve and the three-way regulating valve.

[0128] The contents of S111-S114 are the same as those described in S110, and will not be repeated here.

[0129] In some other embodiments of this application, the control unit may be configured to perform the following S210:

[0130] S210: When the energy storage air conditioner is in cooling mode, if the temperature of the water pump drive board reaches or exceeds the first set temperature and the duration exceeds the first duration, the flow regulating valve and the three-way regulating valve will be opened and controlled.

[0131] In S210, when the energy storage air conditioner is operating in cooling mode, if the temperature of the water pump drive board is detected to be above the first set temperature and the duration is above the first duration, it indicates that the temperature of the water pump drive board is currently high. Then, the flow regulating valve and the three-way regulating valve can be opened and controlled to accurately regulate the temperature of the water pump drive board, so as to ensure that the water pump drive board is within a suitable temperature range. This solves the problem that the temperature of the control drive board cannot be stably kept within a suitable temperature range due to the low heat exchange efficiency of the air-cooled solution, thereby effectively improving the performance of the energy storage air conditioner.

[0132] In some embodiments, when the energy storage air conditioner is operating in cooling mode, if the temperature of the water pump drive board reaches or exceeds a first set temperature and remains above a first set time, the flow regulating valve and the three-way regulating valve can be opened to make the flow regulating valve reach its default opening degree N1% and the three-way regulating valve reach its default opening degree N2%. N1% can be 50% and N2% can be 50%. Both N1% and N2% can be adjusted to other values.

[0133] In some embodiments, the first duration can be 3 seconds. The first duration can be 5 seconds. The first duration can be adjusted to other values.

[0134] Condition 2 above can be expressed by the following formula:

[0135] Tp≥Tpl-A

[0136] Where Tp represents the temperature of the water pump drive board; Tpl represents the upper limit of the water pump drive board temperature; A is a constant, default value of 15, which can be modified; Tpl-A represents the first set temperature; Tp≥Tpl-A represents the water pump drive board temperature reaching or exceeding the first set temperature.

[0137] See Figure 4 As shown, Figure 4 This is a flowchart of the steps executable by the control unit according to another embodiment of this application. In some embodiments, S210 can be specifically divided into S211-S214 as follows:

[0138] S211, the cooling mode of the cold storage air conditioner.

[0139] S212, detect the temperature of the water pump drive board and obtain the first set temperature.

[0140] S213, determine whether the temperature of the water pump drive board has reached or exceeded the first set temperature.

[0141] S214, if the determination is yes, and the duration reaches more than the first duration, then open and control the flow regulating valve and the three-way regulating valve.

[0142] The contents of S211-S214 are the same as those described in S210, and will not be repeated here.

[0143] In some other embodiments of this application, the control unit may be configured to perform the following S310:

[0144] S310, when the energy storage air conditioner is operating in cooling mode, if the temperature of the compressor fan drive board reaches or exceeds the third set temperature and the duration exceeds the first duration, the flow regulating valve and the three-way regulating valve will be opened and controlled; wherein, the third set temperature is obtained according to the upper limit value of the temperature of the compressor fan drive board.

[0145] In S310, when the energy storage air conditioner is operating in cooling mode, if the temperature of the water pump drive board is detected to reach or exceed the third set temperature and the duration exceeds the first duration, it indicates that the temperature of the compressor fan drive board is currently high. In this case, the flow regulating valve and the three-way regulating valve can be opened and controlled to accurately regulate the temperature of the compressor fan drive board, ensuring that the compressor fan drive board is within a suitable temperature range. This solves the problem that the temperature of the control drive board cannot be stably kept within a suitable temperature range due to the low heat exchange efficiency of the air-cooled solution, thereby effectively improving the performance of the energy storage air conditioner.

[0146] In some embodiments, when the energy storage air conditioner is operating in cooling mode, if the temperature of the compressor fan drive board reaches or exceeds a third set temperature and remains there for a duration exceeding a first duration, the flow regulating valve and the three-way regulating valve can be opened to allow the flow regulating valve to reach its default opening degree N1% and the three-way regulating valve to reach its default opening degree N2%. N1% and N2% can both be 50% or 50%. Both N1% and N2% can be adjusted to other values.

[0147] In some embodiments, the first duration can be 3 seconds. The first duration can be 5 seconds. The first duration can be adjusted to other values.

[0148] Condition 3 above can be expressed by the following formula:

[0149] Tc≥Tcl-B

[0150] Where Tc represents the temperature of the compressor fan drive board; Tcl represents the upper limit of the temperature of the compressor fan drive board; B is a constant, default value of 15, which can be modified; Tcl-B represents the third set temperature; Tc≥Tcl-B represents the temperature of the compressor fan drive board reaching or exceeding the third set temperature.

[0151] See Figure 5 As shown, Figure 5 This is a flowchart of the steps that the control unit can execute, provided in another embodiment of this application. In some embodiments, S310 can be specifically divided into S311-S314 as follows:

[0152] S311, the cooling mode of the cold storage air conditioner.

[0153] S312 detects the temperature of the compressor fan drive board and obtains the third set temperature.

[0154] S313, determine whether the temperature of the compressor fan drive board has reached or exceeded the third set temperature.

[0155] S314 If the determination is yes, and the duration reaches more than the first duration, then open and control the flow regulating valve and the three-way regulating valve.

[0156] The contents of S311-S314 are the same as those described in S310, and will not be repeated here.

[0157] In some embodiments of this application, the control unit may be configured to perform the following steps:

[0158] When the energy storage air conditioner is in heating mode, it controls the operation of the heater and water pump drive board, and controls the flow regulating valve to make the temperature of the water pump drive board equal to the higher of the first set temperature and the second set temperature.

[0159] Furthermore, in some embodiments, the energy storage air conditioner may include a heating mode. When the energy storage air conditioner operates in heating mode, the heater and water pump drive board are controlled to operate. By controlling the flow regulating valve, the temperature of the water pump drive board is made equal to the higher of a first set temperature and a second set temperature. This allows for accurate temperature regulation of the water pump drive board, ensuring it remains within a suitable temperature range. This solves the problem of the drive board's temperature not being able to remain stably within a suitable temperature range due to the low heat exchange efficiency of the air-cooled solution, thereby effectively improving the performance of the energy storage air conditioner.

[0160] The temperature of the water pump drive board can be adjusted using the following formula:

[0161] Tp = max{Tpl - A, Td + C}

[0162] Wherein, Tp represents the temperature of the water pump drive board; Tpl-A represents the first set temperature; Td+C represents the second set temperature; max{Tpl-A, Td+C} represents the higher of the first and second set temperatures; Tpl represents the upper limit of the water pump drive board temperature; A is a constant, defaulting to 15, which can be modified; Td represents the dew point temperature of the drive board assembly; C is a constant, defaulting to 15, which can be modified.

[0163] In some embodiments of this application, the control unit may be configured to perform the following steps:

[0164] When the energy storage air conditioner is running in self-circulation mode, it controls the operation of the water pump drive board and controls the flow regulating valve so that the temperature of the water pump drive board is equal to the higher of the first set temperature and the second set temperature.

[0165] Furthermore, in some embodiments, the energy storage air conditioner may include a self-circulation mode. When the energy storage air conditioner operates in self-circulation mode, the water pump drive board is controlled to operate. By controlling the flow regulating valve, the temperature of the water pump drive board is made equal to the higher of a first set temperature and a second set temperature. This allows for accurate temperature regulation of the water pump drive board, ensuring it remains within a suitable temperature range. This solves the problem of the drive board's temperature not being stable within a suitable range due to the low heat exchange efficiency of the air-cooled solution, thereby effectively improving the performance of the energy storage air conditioner.

[0166] The temperature of the water pump drive board can be adjusted using the following formula:

[0167] Tp = max{Tpl - A, Td + C}

[0168] Wherein, Tp represents the temperature of the water pump drive board; Tpl-A represents the first set temperature; Td+C represents the second set temperature; max{Tpl-A, Td+C} represents the higher of the first and second set temperatures; Tpl represents the upper limit of the water pump drive board temperature; A is a constant, defaulting to 15, which can be modified; Td represents the dew point temperature of the drive board assembly; C is a constant, defaulting to 15, which can be modified.

[0169] In some embodiments of this application, the control unit may be configured to perform the following S410:

[0170] S410: When the energy storage air conditioner is operating in heating mode or self-circulation mode, if the temperature of the water pump drive board reaches or exceeds the ambient air temperature of the environment where the drive board assembly is located, and the duration exceeds the second duration, the flow regulating valve will be opened and controlled.

[0171] In S410, when the temperature of the water pump drive board is detected to be above the ambient air temperature of the environment where the drive board assembly is located, and the duration is above the second duration, it indicates that the temperature of the water pump drive board is currently high. Then, the flow regulating valve can be opened and controlled to accurately regulate the temperature of the water pump drive board, so as to ensure that the water pump drive board is within a suitable temperature range. This solves the problem that the temperature of the drive board cannot be stably kept within a suitable temperature range due to the low heat exchange efficiency of the air-cooled solution, thereby effectively improving the performance of the energy storage air conditioner.

[0172] In some embodiments, when the energy storage air conditioner is operating in heating mode or self-circulation mode, if the temperature of the water pump drive board reaches or exceeds the ambient air temperature of the environment where the drive board assembly is located, and this temperature remains above the ambient air temperature for a duration of at least a second duration, the flow regulating valve can be opened to allow the flow regulating valve to reach its default opening degree N1%. N1% can be 50%, and N1% can be adjusted to other values.

[0173] In some embodiments, the second duration can be 3 seconds. The second duration can be 5 seconds. The second duration can be adjusted to other values.

[0174] Condition 1 above can be expressed by the following formula:

[0175] Tp≥Te

[0176] Where Tp represents the temperature of the water pump drive board; Te represents the ambient air temperature of the environment where the drive board assembly is located; Tp≥Te represents the temperature of the water pump drive board reaching or exceeding the ambient air temperature of the environment where the drive board assembly is located.

[0177] See Figure 6 As shown, Figure 6 This is a flowchart of the steps that the control unit can execute, provided in another embodiment of this application. In some embodiments, S410 can be specifically divided into S411-S414 as follows:

[0178] S411, the cold storage air conditioner operates in heating mode or self-circulation mode.

[0179] S412 detects the temperature of the water pump drive board and the ambient air temperature of the environment where the drive board assembly is located.

[0180] S413, determine whether the temperature of the water pump drive board has reached or exceeded the ambient air temperature of the environment where the drive board assembly is located.

[0181] S414 If the determination is yes, and the duration reaches or exceeds the second duration, then the flow regulating valve is opened and controlled.

[0182] The contents of S411-S414 are the same as those described in S410, and will not be repeated here.

[0183] In some embodiments of this application, the control unit may be configured to perform the following S510:

[0184] S510: When the energy storage air conditioner is operating in heating mode or self-circulation mode, if the temperature of the water pump drive board reaches or exceeds the first set temperature and the duration exceeds the second duration, the flow regulating valve will be opened and controlled.

[0185] In S510, when the temperature of the water pump drive board is detected to be above the first set temperature and the duration is above the second duration, it indicates that the temperature of the water pump drive board is currently high. Then, the flow regulating valve can be opened and controlled to accurately regulate the temperature of the water pump drive board, so as to ensure that the water pump drive board is within a suitable temperature range. This solves the problem that the temperature of the control drive board cannot be stably kept within a suitable temperature range due to the low heat exchange efficiency of the air-cooled solution, thereby effectively improving the performance of the energy storage air conditioner.

[0186] In some embodiments, the second duration can be 3 seconds. The second duration can be 5 seconds. The second duration can be adjusted to other values.

[0187] Condition 2 above can be expressed by the following formula:

[0188] Tp≥Tpl-A

[0189] Where Tp represents the temperature of the water pump drive board; Tpl represents the upper limit of the water pump drive board temperature; A is a constant, default value of 15, which can be modified; Tpl-A represents the first set temperature; Tp≥Tpl-A represents the water pump drive board temperature reaching or exceeding the first set temperature.

[0190] See Figure 7 As shown, Figure 7 This is a flowchart of the steps that the control unit can execute, provided in another embodiment of this application. In some embodiments, S510 can be specifically divided into S511-S514 as follows:

[0191] S511, the cold storage air conditioner operates in heating mode or self-circulation mode.

[0192] S512 detects the temperature of the water pump drive board and obtains the first set temperature.

[0193] S513 determines whether the temperature of the water pump drive board has reached or exceeded the first temperature.

[0194] S514 If the determination is yes, and the duration reaches more than the second duration, then the flow regulating valve is opened and controlled.

[0195] The contents of S511-S514 are the same as those described in S510, and will not be repeated here.

[0196] In some embodiments of this application, the control unit may be configured to perform the following steps:

[0197] When the energy storage air conditioner is in standby mode, the flow regulating valve and the three-way regulating valve are closed.

[0198] Furthermore, in some embodiments, the energy storage air conditioner may include a standby mode. When the energy storage air conditioner operates in standby mode, the flow regulating valve and the three-way regulating valve are closed, thereby effectively saving energy.

[0199] See Figure 8 As shown, Figure 8 This is a flowchart illustrating the steps that the control unit can execute, according to another embodiment of this application. In some embodiments, the control unit can be configured to execute the following steps S610-S630:

[0200] S610, obtains the ambient air temperature and relative humidity of the environment where the driver board assembly is located.

[0201] S620: Obtain the reference atmospheric pressure and the real-time atmospheric pressure, and calculate the first ratio of the real-time atmospheric pressure to the reference atmospheric pressure.

[0202] S630 calculates the dew point temperature of the drive board assembly based on the ambient air temperature, ambient air relative humidity, and a first ratio.

[0203] The following sections will elaborate on S610-S630 respectively.

[0204] In S610, in some embodiments, a temperature sensor can be set in the environment where the drive board assembly is located to obtain the ambient air temperature of the environment where the drive board assembly is located.

[0205] In some embodiments, a humidity sensor may be installed in the environment where the driver board assembly is located to obtain the relative humidity of the ambient air in the environment where the driver board assembly is located.

[0206] In S620, in some embodiments, an atmospheric pressure sensor can be installed in the environment where the drive board assembly is located to obtain the real-time atmospheric pressure. The real-time atmospheric pressure can be characterized as the real-time atmospheric pressure of the environment where the drive board assembly is located. A first ratio is equal to the real-time atmospheric pressure divided by the reference atmospheric pressure.

[0207] The first ratio can be expressed by the following formula:

[0208] First ratio = Pe / P0

[0209] Where Pe represents the actual atmospheric pressure and P0 represents the reference atmospheric pressure.

[0210] In some embodiments, the reference atmospheric pressure can be the sea level standard value. The reference atmospheric pressure can be 101.325 kPa. Other values ​​may also be used.

[0211] In S630, in some embodiments, the dew point temperature of the drive plate assembly may include the dew point temperature of the water pump drive plate and the dew point temperature of the compressor fan drive plate. The dew point temperature of the water pump drive plate may be equal to the dew point temperature of the compressor fan drive plate.

[0212] See Figure 9 As shown, Figure 9 This is a flowchart illustrating the steps that the control unit can execute, according to another embodiment of this application. In some embodiments, the control unit can be configured to execute the following steps S710-S730:

[0213] S710, calculate the product of the first constant and the ambient air temperature, and the sum of the second constant and the ambient air temperature.

[0214] S720, calculates the second ratio obtained by dividing the product by the sum.

[0215] S730 calculates the dew point temperature of the drive panel assembly based on the ambient air relative humidity, a first ratio, a second ratio, and a third constant.

[0216] The following sections will elaborate on S710-S730 respectively.

[0217] In S710, in some embodiments, the above product value can be represented by the following formula:

[0218] Product value = a * Te

[0219] Where a represents the first constant, and Te represents the ambient air temperature.

[0220] In some embodiments, the first constant can be 17.62. The first constant can be other values.

[0221] In some embodiments, the above sum can be expressed by the following formula:

[0222] Sum = b + Te

[0223] Where b represents the second constant, and Te represents the ambient air temperature.

[0224] In some embodiments, the second constant can be 243.12. The second constant can be other values.

[0225] In S720, in some embodiments, the second ratio can be calculated using the following formula:

[0226] The second ratio = (a*Te) / (b+Te)

[0227] Wherein, (a*Te) represents the product value mentioned above, (b+Te) represents the sum value mentioned above, and (a*Te) / (b+Te) represents the second ratio value.

[0228] In S730, in some embodiments, the third constant can be 611.2. The third constant can be other values.

[0229] Specifically, in some embodiments, the dew point temperature of the drive board assembly / pump drive board / compressor fan drive board can be calculated using the following formula:

[0230] Td=(c*β) / (b-β), β=ln(RH / 100)+(a*Te) / (b+Te)+ln(Pe / P0)

[0231] Wherein, Td represents the dew point temperature of the drive board assembly / water pump drive board / compressor fan drive board, RH represents the relative humidity of the ambient air, (a*Te) / (b+Te) represents the second ratio, (Pe / P0) represents the first ratio, b represents the second constant, and c represents the third constant.

[0232] See Figure 10 As shown, Figure 10 This is a structural schematic diagram of an energy storage air conditioner provided in another embodiment of this application.

[0233] In some embodiments, the energy storage air conditioner may include a temperature and humidity sensor 13. The temperature and humidity sensor 13 can be used to detect the ambient air temperature of the environment in which the drive board assembly is located.

[0234] In some embodiments, the energy storage air conditioner may include an atmospheric pressure sensor 14. The atmospheric pressure sensor 14 can be used to detect the relative humidity of the ambient air in the environment where the drive board assembly is located.

[0235] In some embodiments, the drive board assembly 2, the temperature and humidity sensor 13, and the atmospheric pressure sensor 14 can all be located inside the control cabinet.

[0236] As can be seen from the above, by placing the drive board assembly, temperature and humidity sensor, and atmospheric pressure sensor inside the control cabinet, the temperature and humidity sensor can accurately detect the ambient air temperature, and the atmospheric pressure sensor can accurately detect the ambient air relative humidity.

[0237] Based on the above technical solution, the embodiments of the present invention have the following advantages and positive effects:

[0238] A first water-cooled plate and a second water-cooled plate are respectively attached to the water pump drive plate and the compressor fan drive plate. When the energy storage air conditioner is operating in cooling mode, the water pump drive plate drives the water pump, and the compressor fan drive plate drives the compressor and / or the fan. The refrigerant can flow from the outlet end of the water pump to the inlet end of the first water-cooled plate and then to the outlet end of the first water-cooled plate, thereby efficiently exchanging heat with the water pump drive plate within the first water-cooled plate. Similarly, the refrigerant can flow from the outlet end of the first water-cooled plate to the inlet end of the second water-cooled plate and then to the outlet end of the second water-cooled plate, thereby efficiently exchanging heat with the compressor fan drive plate within the second water-cooled plate.

[0239] When the energy storage air conditioner is operating in cooling mode, the flow regulating valve is also controlled to ensure that the temperature of the water pump drive board is equal to the higher of the first set temperature and the second set temperature. The first set temperature is obtained based on the upper limit of the water pump drive board temperature, and the second set temperature is obtained based on the dew point temperature of the drive board assembly. By controlling the flow regulating valve to accurately adjust the temperature of the water pump drive board to the higher of the first and second set temperatures, it is possible to ensure that the water pump drive board is stably within a suitable temperature range. This solves the problem that the temperature of the drive board cannot be stably maintained within a suitable temperature range due to the low heat exchange efficiency of the air-cooled solution, thereby effectively improving the performance of the energy storage air conditioner.

[0240] The preferred embodiments of the present invention have been illustrated and described above. However, the present invention is not limited to the specific embodiments described above. Of course, those skilled in the art can make various modifications without departing from the spirit of the invention as claimed in the claims. These modifications should not be understood separately from the technical concept or prospect of the present invention.

[0241] This invention can be implemented in various forms, and its scope of claim is not limited to the embodiments described above. Therefore, any modified embodiment that includes the constituent elements within the scope of the claims of this invention should be considered to fall within the scope of the claims of this invention.

[0242] The embodiments of the present invention described above, or other embodiments thereof, are not mutually exclusive or distinct. The embodiments of the present invention described above, or other embodiments thereof, can be used in combination or in combination of their respective configurations or functions.

[0243] For example, it indicates that configuration A described in a particular embodiment and / or figure and configuration B described in another embodiment and / or figure can be combined. That is, even if no combination between the configurations is directly described, it indicates that they can be combined, except where cases where combination is impossible are explained.

[0244] The detailed description above should not be construed as limiting in all respects, but should be considered exemplary. The scope of the invention should be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the invention are included within the scope of the invention.

Claims

1. An energy storage air conditioner, characterized in that, It includes a refrigerant circulation system and a temperature control system; wherein, the refrigerant circulation system includes: A water pump is used to drive the refrigerant to circulate. The temperature control system includes: A drive board assembly includes a water pump drive board and a compressor fan drive board; the water pump drive board is used to drive the water pump to operate, and the compressor fan drive board is used to drive the compressor and / or fan to operate. The first water-cooled plate is fitted to the water pump drive plate; The second water-cooled plate is fitted to the compressor fan drive plate, and the outlet end of the second water-cooled plate is connected to the inlet end of the water pump. A flow regulating valve is connected to the outlet end of the water pump and the inlet end of the first water-cooled plate, respectively. A three-way regulating valve has a first port, a second port and a third port. The first port is connected to the outlet end of the first water-cooled plate, the second port is connected to the inlet end of the second water-cooled plate, and the third port is connected to the inlet end of the water pump. The energy storage air conditioner also includes: The control unit is configured to: When the energy storage air conditioner is in cooling mode, it controls the operation of the water pump drive board and the compressor fan drive board, and controls the flow regulating valve so that the temperature of the water pump drive board is equal to the higher of the first set temperature and the second set temperature; wherein, the first set temperature is obtained based on the upper limit of the temperature of the water pump drive board, and the second set temperature is obtained based on the dew point temperature of the drive board assembly.

2. The energy storage air conditioner according to claim 1, characterized in that, The control unit is also configured to: When the energy storage air conditioner is in cooling mode, it controls the operation of the water pump drive board and the compressor fan drive board, and controls the three-way regulating valve so that the temperature of the compressor fan drive board is equal to the higher of the second set temperature and the third set temperature; wherein, the third set temperature is obtained based on the upper limit value of the temperature of the compressor fan drive board.

3. The energy storage air conditioner according to claim 1, characterized in that, The control unit is also configured to: When the energy storage air conditioner is operating in cooling mode, if any of the following conditions are detected and the duration reaches more than the first duration, the flow regulating valve and the three-way regulating valve will be opened and controlled. Condition 1: The temperature of the water pump drive board and the temperature of the compressor fan drive board both reach or exceed the ambient air temperature of the environment where the drive board assembly is located; Condition 2: The temperature of the water pump drive board reaches or exceeds the first set temperature; Condition 3: The temperature of the compressor fan drive board reaches or exceeds the third set temperature; wherein the third set temperature is obtained based on the upper limit value of the temperature of the compressor fan drive board.

4. The energy storage air conditioner according to claim 1, characterized in that, The refrigerant circulation system includes a heater, and the control unit is further configured to: When the energy storage air conditioner is in heating mode, it controls the operation of the heater and the water pump drive board, and controls the flow regulating valve so that the temperature of the water pump drive board is equal to the higher of the first set temperature and the second set temperature.

5. The energy storage air conditioner according to claim 1, characterized in that, The control unit is also configured to: When the energy storage air conditioner is operating in self-circulation mode, it controls the operation of the water pump drive board and controls the flow regulating valve so that the temperature of the water pump drive board is equal to the higher of the first set temperature and the second set temperature.

6. The energy storage air conditioner according to claim 1, characterized in that, The control unit is also configured to: When the energy storage air conditioner is operating in heating mode or self-circulation mode, if any of the following conditions are detected and the duration reaches the second duration or more, the flow regulating valve will be opened and controlled. Condition 1: The temperature of the water pump drive board reaches or exceeds the ambient air temperature of the environment where the drive board assembly is located; Condition 2: The temperature of the water pump drive board reaches or exceeds the first set temperature.

7. The energy storage air conditioner according to claim 1, characterized in that, The control unit is also configured to: Obtain the ambient air temperature and relative humidity of the environment where the drive board assembly is located; Obtain the reference atmospheric pressure and the real-time atmospheric pressure, and calculate a first ratio of the real-time atmospheric pressure to the reference atmospheric pressure; The dew point temperature of the drive board assembly is calculated based on the ambient air temperature, the ambient air relative humidity, and the first ratio.

8. The energy storage air conditioner according to claim 7, characterized in that, The control unit is also configured to: Calculate the product of the first constant and the ambient air temperature, and the sum of the second constant and the ambient air temperature; Calculate the second ratio obtained by dividing the product by the sum; The dew point temperature of the drive board assembly is calculated based on the ambient relative humidity, the first ratio, the second ratio, and the third constant.

9. The energy storage air conditioner according to claim 7, characterized in that, The energy storage air conditioner also includes: A temperature and humidity sensor is used to detect the ambient air temperature of the environment in which the drive board assembly is located; An atmospheric pressure sensor is used to detect the relative humidity of the ambient air in the environment where the drive board assembly is located; The drive board assembly, the temperature and humidity sensor, and the atmospheric pressure sensor are located inside the control cabinet.

10. The energy storage air conditioner according to claim 1, characterized in that, The control unit is also configured to: When the energy storage air conditioner is in standby mode, the flow regulating valve and the three-way regulating valve are closed.

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