Method and device for water-cooled machine air conditioner control, air conditioner and storage medium

Abstract

The application relates to the technical field of intelligent air conditioners, and discloses a method and device for water-cooled air conditioner control, an air conditioner and a storage medium. The method comprises the following steps: obtaining a current environment temperature and a current water inlet temperature of the air conditioner, and obtaining a first current difference between the current water inlet temperature and a set water inlet temperature; in a current set time period, if the obtained current environment temperature is all less than or equal to a first set temperature, and the obtained first current difference is all greater than or equal to a second set temperature, an electromagnetic valve connected with a warm air core body in the air conditioner is opened, and a compressor of the air conditioner is controlled to be closed; and the operation of a water pump and / or a fan in the air conditioner is controlled according to the current water inlet temperature. In this way, water flow can enter the warm air core body to perform natural heat dissipation, the compressor is protected, and the service life of the compressor and the whole machine is improved.

Description

Technical Field

[0001] This application relates to the field of intelligent air conditioning technology, such as methods, apparatus, air conditioners and storage media for controlling water-cooled air conditioners. Background Technology

[0002] Air conditioning energy storage technology is a practical and comprehensive technology. Because it can play a role in peak shifting and valley filling of the power grid, it is conducive to optimizing the allocation of resources for the whole society. At the same time, due to the difference between peak and valley electricity prices, users' operating electricity costs are significantly reduced. Therefore, it is a win-win measure that benefits the country and the people.

[0003] Energy storage air conditioners utilize energy storage devices such as battery packs to store energy during periods when the air conditioning system does not require or uses little energy, and release this energy when the system's energy demand is high. Currently, energy storage air conditioners generally use compressors to cool the battery packs and other energy storage devices. When the ambient temperature is low, the compressor's capacity is limited, and excessively low ambient temperatures may also affect the compressor's lifespan, significantly impacting the user experience.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0005] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0006] This disclosure provides a method, apparatus, air conditioner, and storage medium for controlling a water-cooled air conditioner, in order to solve the technical problem of low service life of energy storage air conditioner compressors.

[0007] In some embodiments, the method includes:

[0008] The current ambient temperature and current inlet water temperature of the air conditioner are obtained, and a first current difference between the current inlet water temperature and the set inlet water temperature is obtained.

[0009] If, within the current set time period, the current ambient temperature is less than or equal to the first set temperature, and the first current difference is greater than or equal to the second set temperature, the solenoid valve connected to the heating core of the air conditioner will be opened, and the compressor of the air conditioner will be shut down.

[0010] The operation of the water pump and / or fan in the air conditioner is controlled according to the current inlet water temperature.

[0011] In some embodiments, the device includes:

[0012] The acquisition module is configured to acquire the current ambient temperature and the current inlet water temperature of the air conditioner, and obtain a first current difference between the current inlet water temperature and the set inlet water temperature;

[0013] The first control module is configured to open the solenoid valve connected to the heating core of the air conditioner and control the compressor of the air conditioner to shut down when the current ambient temperature is less than or equal to the first set temperature and the first current difference is greater than or equal to the second set temperature within the current set time period.

[0014] The second control module is configured to control the operation of the water pump and / or fan in the air conditioner based on the current inlet water temperature.

[0015] In some embodiments, the apparatus for controlling a water-cooled air conditioner includes a processor and a memory storing program instructions, the processor being configured to execute the above-described method for controlling a water-cooled air conditioner when executing the program instructions.

[0016] In some embodiments, the air conditioner includes an air conditioner body; the aforementioned device for controlling the water-cooled air conditioner is installed on the air conditioner body.

[0017] In some embodiments, the storage medium stores program instructions that, when executed, perform the above-described method for controlling a water-cooled air conditioner.

[0018] The method, apparatus, and air conditioner for controlling a water-cooled machine provided in this disclosure can achieve the following technical effects:

[0019] By monitoring the ambient temperature and inlet water temperature of the air conditioner, and under the condition that the set conditions are met, the solenoid valve connected to the heating core of the air conditioner can be opened. In this way, water can enter the heating core. At this time, the compressor can stop running. The water circulation and the fan blowing towards the heating core will achieve natural heat dissipation. This realizes the elimination of the compressor to dissipate heat from energy storage devices such as battery packs, protects the compressor, and improves the service life of the compressor and the whole machine.

[0020] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0021] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0022] Figure 1 This is a schematic diagram of the structure of a water-cooled air conditioner provided in an embodiment of this disclosure;

[0023] Figure 2 This is a schematic flowchart of a water-cooled air conditioning control method provided in an embodiment of this disclosure;

[0024] Figure 3 This is a schematic flowchart of a water-cooled air conditioning control method provided in an embodiment of this disclosure;

[0025] Figure 4 This is a schematic diagram of a structure for a water-cooled air conditioning control device provided in an embodiment of this disclosure;

[0026] Figure 5 This is a schematic diagram of a structure for a water-cooled air conditioning control device provided in an embodiment of this disclosure;

[0027] Figure 6 This is a schematic diagram of a structure for a water-cooled air conditioning control device provided in an embodiment of this disclosure;

[0028] Figure 7 This is a schematic diagram of an air conditioner provided in an embodiment of this disclosure. Detailed Implementation

[0029] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0030] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0031] Unless otherwise stated, the term "multiple" means two or more.

[0032] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0033] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0034] In this embodiment, a solenoid valve is installed between the water channel and the heating core of the water-cooled energy storage air conditioner. By monitoring the ambient temperature and inlet water temperature, and under certain conditions, the solenoid valve connected to the heating core is opened, allowing water to flow into the heating core. At this time, the compressor stops running, and the fan blows air onto the heating core for natural heat dissipation. This eliminates the need for the compressor to dissipate heat from the battery pack and other energy storage devices, protecting the compressor and extending the lifespan of both the compressor and the entire unit. Furthermore, based on the monitored inlet water temperature, the operation of one or both of the water pump and the fan in the air conditioner can be controlled. Higher inlet water temperatures allow for faster water circulation and increased heat dissipation. Higher inlet water temperatures also allow for higher fan speeds and greater heat dissipation efficiency.

[0035] In this embodiment of the disclosure, the energy storage air conditioner including the water chiller can be referred to as a water chiller air conditioner. Figure 1 This is a structural schematic diagram of a water-cooled air conditioner provided in an embodiment of this disclosure. Figure 1 As shown, the energy storage air conditioner includes: a water inlet pipe 100 and a heating core 200; it also includes: a solenoid valve 300 located between the water inlet pipe 100 and the heating core 200, and connected to both the water inlet pipe 100 and the heating core 200. When the solenoid valve 300 is open, water from the water inlet pipe 100 can be introduced into the heating core 200; when the solenoid valve 300 is closed, water from the water inlet pipe 100 cannot enter the heating core 200. The water inlet pipe 100 also includes a water pump 110 to control the water flow. The higher the speed of the water pump 110, the greater the water flow and the faster the water circulation. The heating core 200 is equipped with a fan 400; the higher the speed of the fan, the faster the heating core 200 dissipates heat.

[0036] Energy storage air conditioners can achieve heat dissipation for energy storage devices such as battery packs without compressors by controlling the on / off of solenoid valves. They can also control water pumps, fans, etc. to achieve better low-temperature stable operation and energy saving.

[0037] Figure 2 This is a schematic flowchart illustrating a method for controlling a water-cooled air conditioner according to an embodiment of this disclosure. Figure 2 As shown, the process of controlling the water-cooled air conditioning system includes:

[0038] Step 201: Obtain the current ambient temperature and current inlet water temperature of the air conditioner, and obtain the first current difference between the current inlet water temperature and the set inlet water temperature.

[0039] Energy storage air conditioners, including water-cooled units, can monitor the ambient temperature and inlet water temperature in real time or at set intervals. At any given moment, they can obtain the current ambient temperature Tao and the current inlet water temperature Twi. Furthermore, based on the air conditioner's performance, geographical environment, and season, an inlet water temperature can be preset, i.e., a set inlet water temperature Tws. Thus, the first current difference ΔT1 between the current inlet water temperature and the set inlet water temperature can be obtained, where ΔT1 = Twi - Tws.

[0040] Step 202: If the current ambient temperature is less than or equal to the first set temperature within the current set time period, and the first current difference is greater than or equal to the second set temperature, the solenoid valve connected to the heating core of the air conditioner will be opened, and the air conditioner compressor will be turned off.

[0041] In this embodiment of the disclosure, when the energy storage air conditioner including the water chiller monitors the ambient temperature and inlet water temperature, if the monitored ambient temperature is less than or equal to a first set temperature within a set time period, and the monitored first current difference is also greater than or equal to a second set temperature, it indicates that the ambient temperature is relatively low. At this time, if the compressor is still used to cool the battery pack and other devices, not only will the compressor's capacity be limited, but it may also affect the compressor's service life. Therefore, the air conditioner's compressor needs to be turned off, and the solenoid valve connected to the heating core in the air conditioner can be opened. In this way, water can enter the heating core and be naturally cooled through water circulation and the fan blowing towards the heating core. This achieves cooling of the energy storage devices such as the battery pack without the compressor, protecting the compressor and improving the service life of the compressor and the whole machine.

[0042] The first set temperature T1 and the second set temperature T2 can also be determined based on the air conditioning performance, as well as the geographical environment and season.

[0043] Step 203: Control the operation of the water pump and / or fan in the air conditioner according to the current inlet water temperature.

[0044] Water-cooled air conditioners include a water pump that controls the water flow and a fan located next to the heating core. Therefore, water-cooled air conditioners can control the operation of one or both of these components based on the current inlet water temperature. Higher inlet water temperatures allow for faster water circulation and increased heat dissipation. Similarly, higher inlet water temperatures also allow for faster fan speeds and improved heat dissipation efficiency.

[0045] In some embodiments, controlling the operation of the water pump and / or fan in the air conditioner includes: determining the current water temperature change value of the current inlet water temperature acquired within a currently set time period; if the current water temperature change value is less than or equal to a preset change value, determining the first water pump speed as the current water pump speed and controlling the water pump to operate; and / or determining the first fan speed as the current fan speed and controlling the fan to operate.

[0046] By monitoring the change in inlet water temperature within a currently set time period, the operation of one or both of the water pumps and fans can be controlled. The preset change value can be -1℃, -1.5℃, or -2℃, etc. This ensures that the current inlet water temperature consistently decreases within the set time period, and the current water temperature change value ΔTwi is less than or equal to the preset change value, for example, ≤-1.5℃. This indicates that the decreasing inlet water temperature can meet the heat dissipation requirements of the heating core, thus allowing one or both of the water pumps and fans to be configured to a fixed speed. The first water pump speed can be determined as the current water pump speed and its operation controlled, and / or the first fan speed can be determined as the current fan speed and its operation controlled. In some embodiments, considering energy consumption, a lower or lowest speed can be configured for the water pump and fan respectively, including setting the lowest fan speed as the first fan speed. This achieves energy-saving control while ensuring stable low-temperature operation of the energy storage air conditioner.

[0047] In some embodiments, controlling the operation of the water pump and / or fan in the air conditioner further includes: when the water temperature change value is greater than a preset change value, determining the current water pump speed and controlling the water pump operation based on a first current difference value, and / or determining the current fan speed and controlling the fan operation.

[0048] If the air conditioner detects a change in the current water temperature that exceeds the preset value, the inlet water temperature may be either higher or lower than the set temperature. In this case, the operation of one or both of the water pumps and fans in the air conditioner can be controlled based on the difference between the current and set inlet water temperatures, i.e., the first current difference. Generally, the larger the first current difference, the higher the speed of the corresponding water pump and fan, while still considering power consumption, making the air conditioner more energy-efficient.

[0049] Therefore, in some embodiments, determining the current pump speed and controlling the pump operation includes: when the first current difference is less than or equal to the first preset pump difference, determining the second pump speed as the current pump speed, wherein the second pump speed is less than the first pump speed; when the first current difference is greater than the first preset pump difference and less than or equal to the second preset pump difference, determining the current pump speed according to formula (1); when the first current difference is greater than the second preset pump difference, determining the current pump speed according to formula (2).

[0050] Fp=B1+K1*ΔT1 (1)

[0051] Fp=B2+K2*ΔT1 (2)

[0052] Where Fp is the current pump speed, ΔT1 is the first current difference, and B1, B2, K1, and K2 are set constants, with B2 greater than B1 and K2 greater than K1.

[0053] The first preset water pump temperature difference can be less than the second preset water pump temperature difference. For example, the first preset water pump temperature difference can be -1℃, -0.5℃, or 0℃, while the second preset water pump temperature difference can be 2℃, 3℃, or 4℃, etc. The speed of the second water pump can be less than or equal to the speed of the first water pump.

[0054] Table 1 shows a correspondence between a first current difference and the water pump speed provided in an embodiment of this disclosure.

[0055] ΔT1≤-1℃ Fixed speed 1 -1℃<ΔT1≤3℃ Fp=B1+K1*ΔT1 ΔT1>3℃ Fp=B2+K2*ΔT1

[0056] Table 1

[0057] Thus, if ΔT1=-2℃, according to Table 1, the fixed speed 1 is the second water pump speed, and the fixed speed 1 can be determined as the current water pump speed; while if ΔT1=2℃, according to Table 1, B1+K1*ΔT1 can be determined as the current water pump speed according to formula (1).

[0058] In some embodiments, determining the current fan speed and controlling the fan operation includes: determining the first fan speed as the current fan speed when the first current difference is less than or equal to the first preset fan difference; determining the second fan speed as the current fan speed when the first current difference is greater than the first preset fan difference and less than or equal to the second preset fan difference; and determining the third fan speed as the current fan speed when the first current difference is greater than the second preset fan difference; wherein the third fan speed is greater than the second fan speed, and the second fan speed is greater than the first fan speed. It is evident that the larger the first current difference, the higher the corresponding fan speed.

[0059] The first preset fan temperature difference is less than the second preset fan temperature difference. The first preset fan temperature difference can be 0℃, 1℃, or 1.5℃, etc., while the second preset fan temperature difference can be 2℃, 3℃, or 4℃, etc.

[0060] Table 2 shows a correspondence between a first current difference and the fan speed provided in an embodiment of this disclosure.

[0061] ΔT1≤1℃ Rotation speed 1 1℃<ΔT1≤3℃ Rotation speed 2 ΔT1>3℃ 3 RPM

[0062] Table 2

[0063] As shown in Table 2, speed 1 is the speed of the first fan, speed 2 is the speed of the second fan, and speed 3 is the speed of the third fan. Speed ​​3 is the highest, while speed 1 is the lowest. Therefore, different ranges of current differences correspond to different current fan speeds.

[0064] As can be seen, in this embodiment, by monitoring the ambient temperature and inlet water temperature of the air conditioner, and under the condition that the set conditions are met, the air conditioner can open the solenoid valve connected to the heating core, allowing water to flow into the heating core. At this time, the compressor can stop running, and the fan blows heat onto the heating core for natural cooling. This achieves cooling of energy storage devices such as battery packs without the compressor, protecting the compressor and improving the service life of the compressor and the entire unit. Furthermore, the air conditioner can control the operation of one or both of the water pump and the fan based on the monitored inlet water temperature. The higher the inlet water temperature, the higher the speed of the water pump can be, allowing for faster water circulation and better heat dissipation. Similarly, the higher the inlet water temperature, the higher the speed of the fan can be, resulting in higher cooling efficiency.

[0065] Of course, in some embodiments, when the current ambient temperature is higher than the third set temperature, the solenoid valve is closed and the air conditioner compressor is turned on. The third set temperature is greater than or equal to the first set temperature. If the third set temperature T3 > T1, meaning the current ambient temperature is relatively high, the compressor cooling method can continue to dissipate heat from the battery pack, etc., thus closing the solenoid valve and turning on the air conditioner compressor.

[0066] In some embodiments, if the first current difference is less than the fourth set temperature, the solenoid valve is closed and the air conditioner compressor is turned on, wherein the fourth set temperature is less than or equal to the second set temperature. If the fourth set temperature T4 ≤ T2, the set conditions for natural heat dissipation by introducing water into the heating core are no longer met. Therefore, the compressor cooling method can continue to dissipate heat for the battery pack, etc., which means the solenoid valve can be closed and the air conditioner compressor can be turned on.

[0067] It is evident that regardless of the ambient temperature, the system can dissipate heat from the battery pack and other components, ensuring stable operation of the energy storage air conditioner. Furthermore, at lower ambient temperatures, natural heat dissipation is achieved by introducing water into the heating core, protecting the compressor and extending the lifespan of both the compressor and the entire unit while ensuring stable air conditioner operation. Additionally, the system can control the operation of one or both of the water pumps and fans based on the inlet water temperature, achieving energy-saving control while maintaining stable low-temperature operation of the energy storage air conditioner.

[0068] The following describes the operation process in a specific embodiment, illustrating the control process for a water-cooled air conditioner provided by the embodiments of the present invention.

[0069] In one embodiment of this disclosure, such as Figure 1 As shown, a solenoid valve is installed between the water channel and the heating core of the water-cooled energy storage air conditioner. The air conditioner maintains the corresponding relationships shown in Tables 1 and 2. T3>T1, T4≤T2. The preset variation value is -2℃. The first water pump speed can be a fixed speed of 2, and the first fan speed can be speed 1. The current set time period can be 1 minute.

[0070] Figure 3 This is a schematic flowchart illustrating a method for controlling a water-cooled air conditioner according to an embodiment of this disclosure. Figure 3 As shown, the water-cooled air conditioning control process includes:

[0071] Step 301: The air conditioner obtains the current ambient temperature Tao and the current inlet water temperature, and obtains the first current difference ΔT1 between the current inlet water temperature and the set inlet water temperature.

[0072] ΔT1=Twi-Tws.

[0073] Step 302: The air conditioner determines whether Tao≤T1 is true within 1 minute. If yes, proceed to step 303; otherwise, proceed to step 309.

[0074] Step 303: The air conditioner determines whether ΔT1≥T2 is true within 1 minute. If yes, proceed to step 304; otherwise, proceed to step 310.

[0075] Step 304: The solenoid valve connected to the air conditioning control unit and the heating core is in the open state, and the air conditioning compressor is in the closed state.

[0076] Step 305: The air conditioner determines the current water temperature change value △Twi within 1 minute of obtaining the current inlet water temperature Twi.

[0077] Step 306: Does the air conditioner determine if ΔTwi≤-2℃ is true? If yes, proceed to step 307; otherwise, proceed to step 308.

[0078] Step 307: The air conditioner determines the fixed rotation speed 2 as the current water pump rotation speed of the water pump and controls the operation of the water pump, and determines the rotation speed 1 as the current fan rotation speed of the fan and controls the operation of the fan. The current process ends, and the process can return to step 301.

[0079] Step 308: The air conditioner determines the current water pump rotation speed corresponding to the first current difference ΔT1 according to Table 1 and controls the operation of the water pump, and determines the current fan rotation speed corresponding to the first current difference ΔT1 according to Table 2 and controls the operation of the fan. The current process ends, and the process can return to step 301.

[0080] Step 309: Does the air conditioner determine whether Tao>T3 is satisfied? If yes, execute step 311; otherwise, return to step 301.

[0081] Step 310: Does the air conditioner determine whether ΔT1<T4 is satisfied? If yes, execute step 311; otherwise, return to step 301.

[0082] Step 311: The air conditioner controls the solenoid valve connected to the heater core to be in a closed state, and controls the compressor of the air conditioner to be in an activated operation state. The current process ends, and the process can return to step 301.

[0083] It can be seen that in this embodiment, by monitoring the ambient temperature and the inlet water temperature of the air conditioner, when the set conditions are satisfied, the air conditioner can open the solenoid valve connected to the heater core in the air conditioner, so that water can flow into the heater core. At this time, the compressor can stop operating, and the fan blows towards the heater core for natural heat dissipation, which realizes heat dissipation for energy storage devices such as battery packs without the compressor, protects the compressor, and improves the service life of the compressor and the whole air conditioner. In addition, the air conditioner can also control the operation of the water pump and the fan in the air conditioner according to the monitored inlet water temperature, wherein the higher the inlet water temperature is, the higher the rotation speed of the water pump can be, so that the water circulation is faster, which better increases the heat dissipation amount. And the higher the inlet water temperature is, the higher the rotation speed of the fan can be, and the higher the heat dissipation efficiency is.

[0084] According to the above control process for a water chiller air conditioner, an apparatus for controlling a water chiller air conditioner can be constructed.

[0085] Figure 4 is a structural schematic diagram of an apparatus for controlling a water chiller air conditioner provided by an embodiment of the present disclosure. As shown in Figure 4 , the apparatus 400 for controlling a water chiller air conditioner comprises: an acquisition module 410, a first control module 420 and a second control module 430.

[0086] the acquisition module 410 is configured to acquire the current ambient temperature and current inlet water temperature of the air conditioner, and obtain a first current difference between the current inlet water temperature and a set inlet water temperature.

[0087] The first control module 420 is configured to open the solenoid valve connected to the heating core of the air conditioner and control the air conditioner compressor to shut down when the current ambient temperature obtained within the current set time period is less than or equal to the first set temperature and the first current difference obtained is greater than or equal to the second set temperature.

[0088] The second control module 430 is configured to control the operation of the water pump and / or fan in the air conditioner based on the current inlet water temperature.

[0089] In some embodiments, the second control module 430 includes:

[0090] The determining unit is configured to determine the current water temperature change value of the current inlet water temperature within the currently set time period.

[0091] The first control unit is configured to determine the speed of the first water pump as the current water pump speed and control the water pump to run when the current water temperature change value is less than or equal to a preset change value, and / or to determine the speed of the first fan as the current fan speed and control the fan to run.

[0092] In some embodiments, the second control module 430 further includes: a second control unit, configured to determine the current pump speed of the water pump and control the water pump to run based on a first current difference when the water temperature change value is greater than a preset change value, and / or to determine the current fan speed of the blower and control the blower to run.

[0093] In some embodiments, the second control unit is specifically configured to determine the rotational speed as the current pump speed of the water pump, wherein the second pump speed is less than the first pump speed; when the first current difference is greater than the first preset pump difference and less than or equal to the second preset pump difference, the current pump speed of the water pump is determined according to formula (1); when the first current difference is greater than the second preset pump difference, the current pump speed of the water pump is determined according to formula (2).

[0094] Fp=B1+K1*ΔT1 (1)

[0095] Fp=B2+K2*ΔT1 (2)

[0096] Where Fp is the current pump speed, ΔT1 is the first current difference, and B1, B2, K1, and K2 are set constants, with B2 being greater than B1.

[0097] In some embodiments, the second control unit is specifically configured to: determine the first fan speed as the current fan speed when the first current difference is less than or equal to the first preset fan difference; determine the second fan speed as the current fan speed when the first current difference is greater than the first preset fan difference and less than or equal to the second preset fan difference; and determine the third fan speed as the current fan speed when the first current difference is greater than the second preset fan difference; wherein the third fan speed is greater than the second fan speed, and the second fan speed is greater than the first fan speed.

[0098] In some embodiments, the system further includes a third control module configured to close the solenoid valve and control the air conditioner compressor to start when the current ambient temperature is greater than a third set temperature, wherein the third set temperature is greater than or equal to the first set temperature.

[0099] In some embodiments, the third control module is further configured to close the solenoid valve and control the air conditioner compressor to start when the first current difference is less than the fourth set temperature, wherein the fourth set temperature is less than or equal to the second set temperature.

[0100] The following describes the water-cooled air conditioning control process of the water-cooled air conditioning control device in conjunction with embodiments.

[0101] In this embodiment, as Figure 1 As shown, a solenoid valve is installed between the water channel and the heating core of the water-cooled energy storage air conditioner. The air conditioner maintains the corresponding relationships shown in Tables 1 and 2. T3>T1, T4≤T2. The preset variation value is -2℃, and the first water pump speed can be a fixed speed of 2. The current set time period can be 1 minute.

[0102] Figure 5 This is a schematic diagram of a control device for a water-cooled air conditioner provided in an embodiment of this disclosure. Figure 5 As shown, the control device 400 for water-cooled air conditioning includes: an acquisition module 410, a first control module 420, a second control module 430 and a third control module 430, wherein the second control module 430 includes: a determination unit 431, a first control unit 432 and a second control unit 433.

[0103] In this embodiment, the acquisition module 410 acquires the current ambient temperature Tao and the current inlet water temperature of the air conditioner, and obtains a first current difference ΔT1 between the current inlet water temperature and the set inlet water temperature. ΔT1 = Twi - Tws. Then, within 1 minute, when Tao ≤ T1 and ΔT1 ≥ T2, the first control module 420 controls the solenoid valve connected to the heater core to be in the open state, and controls the air conditioner compressor to be in the closed state.

[0104] The determining unit 431 in the second control module 430 can determine the current water temperature change value ΔTwi of the obtained current inlet water temperature Twi within 1 minute. If it is determined that ΔTwi≤-2°C, the first control unit 432 can determine the fixed rotating speed 2 as the current water pump rotating speed of the water pump and control the operation of the water pump, and determine rotating speed 1 as the current fan rotating speed of the fan and control the operation of the fan.

[0105] If ΔTwi>-2°C, the second control unit 432 can determine the current water pump rotating speed corresponding to the first current difference ΔT1 according to Table 1 and control the operation of the water pump, and determine the current fan rotating speed corresponding to the first current difference ΔT1 according to Table 2 and control the operation of the fan.

[0106] Of course, if Tao>T3 or ΔT1<T4, the third control module 440 can control the electromagnetic valve connected with the warm air core to be in a closed state, and control the compressor of the air conditioner to be in an operating state.

[0107] It can be seen that in this embodiment, by monitoring the ambient temperature and inlet water temperature of the air conditioner, when the set conditions are met, the apparatus for water chiller air conditioner control can open the electromagnetic valve connected to the warm air core in the air conditioner, so that water flow can enter the warm air core. At this time, the compressor can stop operating, and the fan blows toward the warm air core for natural heat dissipation, which realizes heat dissipation for energy storage devices such as battery packs without the compressor, protects the compressor, and improves the service life of the compressor and the entire machine. Moreover, the apparatus for water chiller air conditioner control can also control the operation of the water pump and the fan in the air conditioner according to the monitored inlet water temperature, wherein the higher the inlet water temperature is, the higher the rotating speed of the water pump can be, so that the water circulation is faster and the heat dissipation amount is better increased. And the higher the inlet water temperature is, the higher the rotating speed of the fan can be, and the higher the heat dissipation efficiency is.

[0108] In combination with Figure 6 , an apparatus 600 for water chiller air conditioner control provided by an embodiment of the present disclosure includes:

[0109] a processor 1000 and a memory 1001, and may further include a communication interface 1002 and a bus 1003. Wherein, the processor 1000, the communication interface 1002 and the memory 1001 can communicate with each other through the bus 1003. The communication interface 1002 can be used for information transmission. The processor 1000 can call logic instructions in the memory 1001 to execute the method for water chiller air conditioner control in the foregoing embodiments.

[0110] Furthermore, the logic instructions in the aforementioned memory 1001 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium.

[0111] The memory 1001, as a computer-readable storage medium, can be used to store software programs and computer-executable programs, such as program instructions / modules corresponding to the methods in the embodiments of this disclosure. The processor 1000 executes functional applications and data processing by running the program instructions / modules stored in the memory 1001, that is, it implements the method for controlling a water-cooled air conditioner in the above method embodiments.

[0112] The memory 1001 may include a program storage area and a data storage area. The program storage area may store the operating system and applications required for at least one function; the data storage area may store data created based on the use of the terminal device. Furthermore, the memory 1001 may include high-speed random access memory and may also include non-volatile memory.

[0113] This disclosure provides a water-cooled air conditioning control device, including: a processor and a memory storing program instructions, wherein the processor is configured to execute a water-cooled air conditioning control method when executing the program instructions.

[0114] Combination Figure 7 This disclosure provides an air conditioner 700, including: an air conditioner body and the aforementioned control device 400 (600) for a water-cooled air conditioner. The control device 400 (600) for a water-cooled air conditioner is installed on the air conditioner body. The installation relationship described herein is not limited to placement inside the product, but also includes installation connections with other components of the product, including but not limited to physical connections, electrical connections, or signal transmission connections. Those skilled in the art will understand that the control device 400 (600) for a water-cooled air conditioner can be adapted to feasible air conditioner bodies to achieve other feasible embodiments.

[0115] This disclosure provides a storage medium storing program instructions that, when executed, perform the method described above for controlling a water-cooled air conditioner.

[0116] This disclosure provides a computer program product, which includes a computer program stored on a storage medium. The computer program includes program instructions, which, when executed by a computer, cause the computer to perform the above-described method for controlling a water-cooled air conditioner.

[0117] The aforementioned storage medium can be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0118] The technical solutions of this disclosure can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes one or more instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in this disclosure. The aforementioned storage medium can be a non-transitory storage medium, including: a USB flash drive, a portable hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and other media capable of storing program code; it can also be a transient storage medium.

[0119] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, procedural, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or replace parts and features of other embodiments. The scope of the embodiments of this disclosure includes the entire scope of the claims and all available equivalents of the claims. While the terms “first,” “second,” etc., may be used in this application to describe elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, a first element may be called a second element without changing the meaning of the description, and similarly, a second element may be called a first element, provided that all occurrences of “first element” are consistently renamed and all occurrences of “second element” are consistently renamed. First and second elements are both elements, but may not be the same element. Moreover, the terminology used in this application is only for describing embodiments and is not intended to limit the claims. As used in the description of the embodiments and claims, unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “the” are intended to also include the plural forms. Similarly, the term “and / or” as used herein means including one or more of the associated listed elements and all possible combinations thereof. Additionally, when used herein, the terms “comprise” and its variations “comprises” and / or “comprising” refer to the presence of stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. Without further limitations, an element defined by the phrase “comprising an…” does not exclude the presence of additional identical elements in the process, method, or apparatus that includes said element. In this document, each embodiment may focus on the differences from other embodiments, and similar or identical parts between embodiments can be referred to mutually. For methods, products, etc., disclosed in the embodiments, if they correspond to the method section disclosed in the embodiments, the relevant parts can be referred to the description of the method section.

[0120] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the embodiments of this disclosure. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0121] The methods and products (including but not limited to devices and equipment) disclosed in the embodiments herein can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For instance, the division of units may be merely a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the shown or discussed units may be through some interfaces, and the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the units may be selected to implement this embodiment according to actual needs. Furthermore, the functional units in the embodiments of this disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0122] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to embodiments of this disclosure. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions marked in the blocks may occur in a different order than that shown in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the accompanying drawings, the operations or steps corresponding to different blocks may also occur in a different order than disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. Each block in a block diagram and / or flowchart, and combinations of blocks in a block diagram and / or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

Claims

1. A method for controlling an air conditioner in a water-cooled unit, characterized in that, The water-cooled air conditioner is an energy storage air conditioner that uses a compressor to refrigerate the energy storage device, and a solenoid valve is installed between the water channel and the heating core of the water-cooled air conditioner. The method includes: The current ambient temperature and current inlet water temperature of the air conditioner are obtained, and a first current difference between the current inlet water temperature and the set inlet water temperature is obtained. If, within the current set time period, the current ambient temperature is less than or equal to the first set temperature, and the first current difference is greater than or equal to the second set temperature, the solenoid valve connected to the heating core of the air conditioner will be opened, water will flow into the heating core, and the compressor of the air conditioner will be turned off, and the fan will blow towards the heating core for natural heat dissipation. Based on the current inlet water temperature, control the operation of the water pump and / or fan in the air conditioner; The control of the operation of the water pump and / or fan in the air conditioner includes: Determine the current water temperature change value of the current inlet water temperature within the currently set time period; If the current water temperature change is less than or equal to a preset change value, determine the first water pump speed as the current water pump speed and control the water pump to run, and / or determine the first fan speed as the current fan speed and control the fan to run; and if the water temperature change is greater than the preset change value, determine the current water pump speed based on the first current difference and control the water pump to run, and / or determine the current fan speed and control the fan to run.

2. The method according to claim 1, characterized in that, Determining the current pump speed and controlling the pump operation includes: If the first current difference is less than or equal to the first preset water pump difference, the second water pump speed is determined as the current water pump speed of the water pump, wherein the second water pump speed is less than the first water pump speed. When the first current difference is greater than the first preset water pump difference and less than or equal to the second preset water pump difference, the current water pump speed of the water pump is determined according to formula (1); If the first current difference is greater than the second preset pump difference, the current pump speed of the pump is determined according to formula (2); Fp=B1+K1*ΔT1(1) Fp=B2+K2*ΔT1(2) Where Fp is the current pump speed, ΔT1 is the first current difference, and B1, B2, K1, and K2 are set constants, with B2 being greater than B1 and K2 being greater than K1.

3. The method according to claim 2, characterized in that, Determining the current fan speed and controlling the fan operation includes: If the first current difference is less than or equal to the first preset fan difference, the first fan speed is determined as the current fan speed of the fan. If the first current difference is greater than the first preset fan difference and less than or equal to the second preset fan difference, the second fan speed is used to determine the current fan speed of the fan. If the first current difference is greater than the second preset fan difference, the third fan speed is used to determine the current fan speed of the fan; The third fan has a higher speed than the second fan, and the second fan has a higher speed than the first fan.

4. The method according to any one of claims 1-3, characterized in that, Also includes: When the current ambient temperature is greater than the third set temperature, the solenoid valve is closed and the compressor of the air conditioner is turned on, wherein the third set temperature is greater than or equal to the first set temperature.

5. The method according to claim 4, characterized in that, Also includes: If the first current difference is less than the fourth set temperature, the solenoid valve is closed and the compressor of the air conditioner is turned on, wherein the fourth set temperature is less than or equal to the second set temperature.

6. A device for controlling the air conditioning of a water-cooled machine, characterized in that, The water-cooled air conditioner is an energy storage air conditioner that uses a compressor to refrigerate the energy storage device, and a solenoid valve is installed between the water channel and the heating core of the water-cooled air conditioner. This device includes: The acquisition module is configured to acquire the current ambient temperature and the current inlet water temperature of the air conditioner, and obtain a first current difference between the current inlet water temperature and the set inlet water temperature; The first control module is configured to open the solenoid valve connected to the heating core of the air conditioner and control the compressor of the air conditioner to shut down when the current ambient temperature is less than or equal to the first set temperature and the first current difference is greater than or equal to the second set temperature within the current set time period. The second control module is configured to control the operation of the water pump and / or fan in the air conditioner according to the current inlet water temperature; The second control module includes: The determining unit is configured to determine the current water temperature change value of the current inlet water temperature acquired within the current set time period; The first control unit is configured to determine the speed of the first water pump as the current water pump speed and control the water pump to run when the current water temperature change value is less than or equal to a preset change value, and / or to determine the speed of the first fan as the current fan speed and control the fan to run. The second control unit is configured to determine the current pump speed of the water pump and control the water pump to operate based on a first current difference when the water temperature change value is greater than a preset change value, and / or determine the current fan speed of the blower and control the blower to operate.

7. A device for controlling a water-cooled air conditioner, the device comprising a processor and a memory storing program instructions, characterized in that, The processor is configured to execute the method for controlling a water-cooled air conditioner as described in any one of claims 1 to 5 when executing the program instructions.

8. An air conditioner, characterized in that, include: Air conditioner unit; The device for controlling a water-cooled air conditioner as described in claim 6 or 7 is installed on the air conditioner body.

9. A storage medium storing program instructions, characterized in that, When the program instructions are executed, they perform the method for controlling a water-cooled air conditioner as described in any one of claims 1 to 5.

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