Control method and device of liquid cooling system, electronic equipment and storage medium

Abstract

The invention discloses a control method and device of a liquid cooling system, electronic equipment and a storage medium. According to the scheme, the current environment temperature, the current cooling liquid temperature in the liquid cooling system and the current liquid return temperature of cooling liquid returned from cooled equipment are obtained; under the condition that the current environment temperature is larger than or equal to the preset starting temperature of the liquid cooling system, a refrigerating system in the liquid cooling system is controlled according to the current cooling liquid temperature and a preset unit temperature set; according to the current liquid return temperature and the current liquid return temperature, performing on-off control on a three-way valve of the liquid cooling system; according to the current environment temperature, the current cooling liquid temperature and the current liquid return temperature, a refrigerating unit and a three-way valve in the liquid cooling system are controlled, then the flow direction of cooling liquid is controlled, and then the heat dissipation stability and the heat dissipation efficiency of the liquid cooling system are controlled; the embodiment of the invention can be widely applied to the technical field of refrigeration equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigeration equipment, and in particular to a control method, device, electronic equipment and storage medium for a liquid cooling system. Background Art

[0002] Existing closed cooling systems usually use a single cooling method such as an air cooler or a refrigerator to cool the cooled equipment; however, when the ambient temperature of the existing cooling system fluctuates greatly, the heat dissipation performance stability is poor, making it difficult to continuously and quickly and efficiently dissipate heat for the cooled equipment. Summary of the Invention

[0003] The main purpose of the embodiments of the present invention is to provide a control method, device, electronic equipment and storage medium for a liquid cooling system, which can improve heat dissipation stability and heat dissipation efficiency.

[0004] To achieve the above objectives, an embodiment of the present invention provides a method for controlling a liquid cooling system, the method comprising:

[0005] Obtaining a current ambient temperature, a current coolant temperature, and a current return liquid temperature, and comparing the current ambient temperature with a preset starting temperature;

[0006] If the current ambient temperature is greater than or equal to the preset start temperature, the refrigeration unit is controlled according to the current coolant temperature and the preset unit temperature set;

[0007] The three-way valve is controlled to be on and off according to the current return liquid temperature and the current ambient temperature.

[0008] In some embodiments, controlling the refrigeration unit according to the current coolant temperature and the preset unit temperature set specifically includes:

[0009] Comparing the current coolant temperature with several unit startup temperatures in the preset unit temperature set in sequence to determine a target unit set; wherein the target unit set includes several refrigeration units corresponding to the unit startup temperatures being less than or equal to the current coolant temperature;

[0010] The refrigeration units are started and operated according to the target unit set.

[0011] In some embodiments, the method further comprises:

[0012] comparing the current coolant temperature with the unit stop temperature in the preset unit temperature set;

[0013] If the current coolant temperature is greater than or equal to the first preset unit stop temperature, maintain the current state of the refrigeration unit;

[0014] If the current coolant temperature is lower than the first preset unit stop temperature, stop any one refrigeration unit;

[0015] If the current coolant temperature is lower than the second preset unit stop temperature and the current ambient temperature is lower than the preset start temperature, all refrigeration units are stopped.

[0016] In some embodiments, the switching control of the three-way valve according to the current return liquid temperature and the current ambient temperature specifically includes:

[0017] Calculating a difference between the current return liquid temperature and the current ambient temperature to determine a temperature difference, and comparing the temperature difference with a preset valve temperature threshold range;

[0018] If the temperature difference is greater than the upper limit of the preset valve temperature threshold range, the opening value of the three-way valve is opened according to the preset opening limit value;

[0019] If the temperature difference is less than the lower limit of the preset valve temperature threshold range, the opening value of the three-way valve is closed according to the preset closing limit value;

[0020] If the temperature difference falls within the preset valve temperature threshold range, the current opening value of the three-way valve is maintained.

[0021] In some embodiments, the method further comprises:

[0022] Obtaining a current opening value of the three-way valve, and comparing the current opening value with the preset closing limit value;

[0023] If the current opening value is greater than the preset closing limit value, maintaining the current state of the air cooler fan;

[0024] If the current opening value is less than or equal to the preset closing limit value, the air cooler fan is controlled to stop running.

[0025] In some embodiments, the method further comprises:

[0026] Calculating a difference between the current coolant temperature and a preset unit startup temperature to determine a temperature difference, and comparing the temperature difference with a preset threshold;

[0027] If the temperature difference is greater than or equal to the preset threshold, all refrigeration units are started in sequence;

[0028] If the temperature difference is less than the preset threshold, the process returns to executing the control of the refrigeration unit according to the current coolant temperature and the preset unit temperature set.

[0029] In some embodiments, the method further comprises:

[0030] If the current ambient temperature is lower than the preset prohibition temperature, all refrigeration units are stopped in sequence.

[0031] To achieve the above objectives, another aspect of an embodiment of the present invention provides a control device for a liquid cooling system, comprising:

[0032] The first module is used to obtain the current ambient temperature, the current coolant temperature and the current return liquid temperature, and compare the current ambient temperature with the preset starting temperature;

[0033] The second module is configured to control the refrigeration unit according to the current coolant temperature and a preset unit temperature set if the current ambient temperature is greater than or equal to the preset start temperature;

[0034] The third module is used to control the opening and closing of the three-way valve according to the current return liquid temperature and the current ambient temperature.

[0035] To achieve the above-mentioned purpose, another aspect of an embodiment of the present application provides an electronic device, which includes a memory and a processor, wherein the memory stores a computer program, and the processor implements the above-mentioned method when executing the computer program.

[0036] To achieve the above objectives, another aspect of an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method described above is implemented.

[0037] The implementation of the embodiments of the present invention includes the following beneficial effects: the embodiments of the present invention provide a control method, device, electronic device and storage medium for a liquid cooling system. The scheme obtains the current ambient temperature, the current coolant temperature in the liquid cooling system and the current return liquid temperature of the coolant returned from the cooled device. When the current ambient temperature is greater than or equal to the preset starting temperature of the liquid cooling system, the refrigeration system in the liquid cooling system is controlled according to the current coolant temperature and the preset unit temperature set; and the three-way valve of the liquid cooling system is switched on and off according to the current return liquid temperature and the current return liquid temperature; the refrigeration unit and the three-way valve in the liquid cooling system are controlled according to the current ambient temperature, the current coolant temperature and the current return liquid temperature, thereby controlling the flow direction of the coolant and controlling the heat dissipation stability and heat dissipation efficiency of the liquid cooling system. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is a schematic flow chart of the steps of a method for controlling a liquid cooling system provided by an embodiment of the present invention;

[0039] Figure 2 This is a flow chart of the steps of controlling a refrigeration unit in a method for controlling a liquid cooling system provided by an embodiment of the present invention;

[0040] Figure 3 This is a schematic flow chart of another step of controlling a refrigeration unit in a method for controlling a liquid cooling system provided by an embodiment of the present invention;

[0041] Figure 4 This is a flow chart of steps for controlling a three-way valve in a method for controlling a liquid cooling system provided by an embodiment of the present invention;

[0042] Figure 5 This is a flow chart of steps for controlling an air cooler in a method for controlling a liquid cooling system provided by an embodiment of the present invention;

[0043] Figure 6 This is a flow chart of the steps of forcibly controlling a refrigeration unit in a control method for a liquid cooling system provided by an embodiment of the present invention;

[0044] Figure 7 This is a structural diagram of a closed cooling system in a specific embodiment provided by an embodiment of the present invention;

[0045] Figure 8 This is a schematic flow chart of steps for joint control of a liquid cooling system in a specific embodiment provided by an embodiment of the present invention;

[0046] Figure 9 This is a structural block diagram of a control system of a liquid cooling system provided by an embodiment of the present invention;

[0047] Figure 10 The figure is a schematic diagram of the hardware structure of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0048] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The step numbers in the following embodiments are provided for ease of description only and do not limit the order of the steps. The order of execution of the steps in the embodiments can be adaptively adjusted based on the understanding of those skilled in the art.

[0049] In the following description, reference is made to “some embodiments”, which describes a subset of all possible embodiments, but it will be understood that “some embodiments” may be the same subset or different subsets of all possible embodiments and may be combined with each other without conflict.

[0050] In the following description, the terms "first\second\third" are merely used to distinguish similar objects and do not represent a specific ordering of the objects. It is understandable that "first\second\third" can be interchanged with a specific order or sequence where permitted, so that the embodiments of the present invention described herein can be implemented in an order other than that illustrated or described herein.

[0051] Unless otherwise defined, all technical and scientific terms used in the embodiments of the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention pertains. The terms used in the embodiments of the present invention are for the purpose of describing the embodiments of the present invention only and are not intended to limit the present invention.

[0052] Figure 1 This is an optional flow chart of a control method for a liquid cooling system provided by an embodiment of the present invention. Figure 1 The method may include but is not limited to steps S101 to S103.

[0053] Step S101, obtaining the current ambient temperature, the current coolant temperature, and the current return liquid temperature, and comparing the current ambient temperature with the preset starting temperature;

[0054] Step S102: If the current ambient temperature is greater than or equal to the preset start temperature, the refrigeration unit is controlled according to the current coolant temperature and the preset unit temperature set;

[0055] Step S103 , controlling the opening and closing of the three-way valve according to the current return liquid temperature and the current ambient temperature.

[0056] In the steps S101 to S103 shown in the embodiment of the present application, a control method for a liquid cooling system provided by an embodiment of the present invention is implemented by setting a corresponding control device in the current liquid cooling system, such as a single chip microcomputer; a sensor is set in the liquid cooling system to collect data, and the collected data is uploaded to the control device via a wired or wireless method, and the device obtains the current ambient temperature of the liquid cooling system, the current coolant temperature output by the liquid cooling system, and the current return temperature of the coolant returned from the cooled device, and compares the current ambient temperature obtained with the startup temperature parameter set by the liquid cooling system in real time; if the current ambient temperature is greater than or equal to It is equal to the starting temperature parameter set for the liquid cooling system. The control device determines that the current ambient temperature is high, and the coolant cannot provide stable heat dissipation performance by only exchanging heat with the external environment through the evaporator. The control device makes a judgment based on the current coolant temperature and the temperature parameters set for each refrigeration unit in the liquid cooling system, and then drives each refrigeration unit to run or stop; at the same time, the control device also makes a further judgment based on the return temperature of the coolant and the current ambient temperature, and then controls the switching state of the three-way valve in the liquid cooling system, adjusts the access status of the air-cooled unit in the liquid cooling system in real time, adjusts the heat dissipation performance of the liquid cooling system, and provides a stable heat dissipation effect for the cooled equipment.

[0057] See also Figure 2 In some embodiments, step S102 may include but is not limited to steps S201 to S202:

[0058] Step S201, sequentially comparing the current coolant temperature with several unit startup temperatures in a preset unit temperature set to determine a target unit set; wherein the target unit set includes several refrigeration units corresponding to unit startup temperatures less than or equal to the current coolant temperature;

[0059] Step S202: Start the refrigeration unit according to the target unit set.

[0060] In step S201 of some embodiments, after determining that the current ambient temperature is greater than or equal to the starting temperature parameter set in the liquid cooling system, the control device determines that the refrigeration unit in the liquid cooling system can be started to dissipate heat from the coolant; the control device compares the collected current coolant temperature with the starting temperature set for each refrigeration unit in the liquid cooling system, and filters out the refrigeration units whose current coolant temperature is greater than or equal to the starting temperature parameter to obtain a target unit set.

[0061] In step S202 of some embodiments, the control device controls the corresponding refrigeration units in the liquid cooling system to start and operate according to the determined target unit set, dissipates heat for the coolant flowing through the refrigeration units, and thereby improves the heat dissipation performance of the liquid cooling equipment; illustratively, three groups of refrigeration units with different starting temperatures are provided in the liquid cooling system; after the control device determines that the collected current ambient temperature exceeds the starting temperature of the liquid cooling system, the control device compares the collected current coolant temperature with the starting temperatures of the three groups of refrigeration units respectively; if the current coolant temperature is greater than or equal to the starting temperature of the first group of refrigeration units, the control device starts the first group of refrigeration units to operate; if the current coolant temperature is greater than or equal to the starting temperature of the second group of refrigeration units, the control device starts the second group of refrigeration units to operate while keeping the first group of refrigeration units in operation.

[0062] See also Figure 3 In some embodiments, step S102 may also include but is not limited to steps S301 to S304:

[0063] Step S301, comparing the current coolant temperature with the unit stop temperature in the preset unit temperature set;

[0064] Step S302: If the current coolant temperature is greater than or equal to the first preset unit stop temperature, maintain the current state of the refrigeration unit;

[0065] Step S303: If the current coolant temperature is lower than the first preset unit stop temperature, stop any one refrigeration unit;

[0066] Step S304: If the current coolant temperature is lower than the second preset unit stop temperature and the current ambient temperature is lower than the preset start temperature, all refrigeration units are stopped.

[0067] In step S301 of some embodiments, the control device obtains the coolant temperature in real time through a sensor set in the liquid cooling system, and compares the obtained coolant temperature with the unit stop temperature set in each refrigeration unit in the liquid cooling system, and then determines whether it is necessary to stop the operation of the refrigeration unit. On the premise of meeting the cooling needs of the cooled equipment, the energy consumption of the liquid cooling system is reduced and the energy efficiency of the entire liquid cooling system is improved.

[0068] In step S302 of some embodiments, the control device compares the current coolant temperature with the unit stop temperature set in each refrigeration unit in the liquid cooling system, and determines that the current coolant temperature is still greater than the set unit stop temperature, indicating that the current coolant temperature is high and multiple groups of refrigeration units are still required to operate. The control device maintains the current working state of the refrigeration unit without adjustment; illustratively, three groups of refrigeration units with different starting temperatures are provided in the liquid cooling system, and the stop temperature of the second group of refrigeration units is set to the first preset unit stop temperature. When the coolant temperature is still higher than the stop temperature of the second group of refrigeration units, the control device maintains the current state of each refrigeration unit in the current liquid cooling system.

[0069] In step S303 of some embodiments, if the control device compares the current coolant temperature with the unit stop temperature set in each refrigeration unit in the liquid cooling system, and determines that the current coolant temperature is lower than the set unit stop temperature, it means that the heat dissipation performance of the current refrigeration unit meets the cooling requirements of the cooled equipment, and the control device controls any group of refrigeration units currently in operation to stop operation to improve the energy efficiency of the liquid cooling system; in this embodiment, the stop temperature of the second group of refrigeration units is usually used as the set unit stop temperature. If the current coolant temperature is lower than the stop temperature of the second group of refrigeration units, the control device stops the operation of one group of refrigeration units, usually stopping the operation of the refrigeration unit with a higher start temperature.

[0070] In step S304 of some embodiments, if the control device compares the current coolant temperature with the unit stop temperature set in each refrigeration unit in the liquid cooling system, and determines that the current coolant temperature is lower than the second stop temperature set in the refrigeration unit, usually the stop temperature is lower, the control device collects the current ambient temperature through the sensor, and compares the current ambient temperature with the start temperature set for the refrigeration unit in the liquid cooling system. If the current ambient temperature is lower than the start temperature set for the refrigeration unit, it means that the current coolant temperature is low and does not meet the temperature for starting the operation of the refrigeration unit. In order to reduce the risk of damage to the refrigeration unit operating under low-temperature coolant, the control device stops the operation of all refrigeration units.

[0071] See also Figure 4 In some embodiments, step S103 may include but is not limited to steps S401 to S404:

[0072] Step S401, calculating the difference between the current return liquid temperature and the current ambient temperature to determine the temperature difference, and comparing the temperature difference with a preset valve temperature threshold range;

[0073] Step S402: If the temperature difference is greater than the upper limit of the preset valve temperature threshold range, the opening value of the three-way valve is opened according to the preset opening limit value;

[0074] Step S403: If the temperature difference is less than the lower limit of the preset valve temperature threshold range, the opening value of the three-way valve is closed according to the preset closing limit value;

[0075] Step S404: If the temperature difference falls within the preset valve temperature threshold range, the current opening value of the three-way valve is maintained.

[0076] In step S401 of some embodiments, the control device also collects the temperature of the coolant returned from the cooled equipment, that is, the return liquid temperature, through a sensor; the control device calculates the difference between the collected return liquid temperature and the current ambient temperature, and determines whether the temperature of the returned coolant is too high based on the difference between the return liquid temperature and the current ambient temperature, and then determines whether to control the switching state of the three-way valve, connect the air cooler to the liquid cooling system, and improve the heat dissipation performance of the liquid cooling system.

[0077] In step S402 of some embodiments, the control device compares the calculated temperature difference with the valve temperature threshold range set in the liquid cooling system, and determines that the current temperature difference exceeds the upper limit of the valve temperature threshold range, indicating that the return coolant temperature is too high. In order to improve the heat dissipation performance and heat dissipation efficiency of the liquid cooling system, the temperature of the coolant is greatly reduced to meet the cooling needs of the cooled equipment; the control device adjusts the opening value of the three-way valve to the opening limit, and connects the air cooler to the cooling circuit of the coolant through the three-way valve. The high-temperature coolant enters the air cooler through the three-way valve at a maximum flow rate, and the high-temperature coolant is cooled by the heat dissipation equipment of the air cooler, such as fans, heat dissipation fins, etc.; then, the coolant flowing through the air cooler is input into the refrigeration unit, and the refrigeration unit is used to further dissipate heat and cool the coolant.

[0078] In step S403 of some embodiments, the control device compares the calculated temperature difference with the valve temperature threshold range set in the liquid cooling system, and determines that the current temperature difference is lower than the lower limit of the valve temperature threshold range, indicating that the return coolant temperature is high, but the heat dissipation through the operation of the refrigeration unit can meet the cooling needs of the cooled equipment; the control device adjusts the opening value of the three-way valve to the closing limit, reducing the coolant flow through the air cooler, and even disconnecting the air cooler from the coolant cooling circuit.

[0079] In step S404 of some embodiments, the control device compares the calculated temperature difference with the valve temperature threshold range set in the liquid cooling system, and determines that the current temperature difference falls within the valve temperature threshold range, indicating that the return coolant temperature is high, and an air cooler is still required to be added to the coolant cooling circuit to improve the heat dissipation performance and efficiency of the liquid cooling system; but there is no need to input the coolant into the air cooler at a maximum flow rate for cooling to improve the energy efficiency of the liquid cooling system; in this embodiment, the control device can adjust the opening value of the three-way valve according to the ratio of the current temperature difference and the preset valve temperature threshold range to adjust the heat dissipation performance of the liquid cooling system.

[0080] See also Figure 5 In some embodiments, step S103 may also include but is not limited to steps S501 to S503:

[0081] Step S501, obtaining the current opening value of the three-way valve, and comparing the current opening value with the preset closing limit value;

[0082] Step S502: If the current opening value is greater than the preset closing limit value, the current state of the air cooler fan is maintained;

[0083] Step S503: If the current opening value is less than or equal to the preset closing limit value, the air cooler fan is controlled to stop running.

[0084] In step S501 of some embodiments, the control device can also control the operating state of the air cooler according to the opening value of the three-way valve; in this embodiment, the control device compares the real-time collected three-way valve opening value with the set three-way valve closing limit to determine whether the three-way valve is open, and then determines whether to control the operation of the air cooler to dissipate heat from the input coolant.

[0085] In step S502 of some embodiments, if the control device determines through comparison that the current opening value of the three-way valve is greater than the set closing limit value, the control device does not adjust the current state of the air cooler fan; in this embodiment, the control device can calculate the ratio of the current opening value of the current three-way valve and the closing limit value, and control the state of the air cooler fan according to the calculated ratio; illustratively, by calculating a larger proportional value, the control device controls more air cooler fans to start running to improve the heat dissipation performance of the liquid cooling system; if the calculated proportional value is smaller, the control device controls some air cooler fans to stop running to reduce the energy consumption of the liquid cooling system.

[0086] In step S503 of some embodiments, if the control device determines through comparison that the current opening value of the three-way valve is less than or equal to the set closing limit value, it means that the three-way valve is closed, the air cooler is disconnected from the cooling circuit of the coolant, and the control device controls the operation of all air cooler fans to improve the energy efficiency of the liquid cooling system.

[0087] See also Figure 6 In some embodiments, a method for controlling a liquid cooling system provided by an embodiment of the present invention further includes but is not limited to steps S601 to S603:

[0088] Step S601, calculating the difference between the current coolant temperature and the preset unit startup temperature, determining the temperature difference, and comparing the temperature difference with a preset threshold;

[0089] Step S602: If the temperature difference is greater than or equal to the preset threshold, all refrigeration units are started in sequence;

[0090] Step S603: If the temperature difference is less than the preset threshold, the process returns to executing the control of the refrigeration unit according to the current coolant temperature and the preset unit temperature set.

[0091] In step S601 of some embodiments, in order to cope with the significantly changed cooling demand of the cooled equipment, the control device calculates the temperature difference in real time based on the collected coolant return temperature and the set unit start-up temperature, compares the calculated temperature difference with the set temperature threshold, and determines whether the temperature of the return coolant changes significantly, thereby determining whether the heat dissipation performance of the liquid cooling system needs to be improved.

[0092] In step S602 of some embodiments, if the control device determines that the calculated temperature difference is greater than or equal to the set temperature threshold, it is determined that the cooling demand of the cooled equipment has increased significantly and the coolant temperature has increased significantly; in order to meet the significantly increased heat dissipation demand, the control device starts all refrigeration units in the liquid cooling system in sequence, and drives all refrigeration units to be forced into operation to improve the heat dissipation performance of the liquid cooling system.

[0093] In step S603 of some embodiments, if the control device determines through comparison that the calculated temperature difference is less than the set temperature threshold, it indicates that the cooling demand of the cooled equipment has changed, but the heat dissipation performance of the current liquid cooling system can meet the changed cooling demand. The control device does not need to control all refrigeration units to be forced into operation. The control device controls the corresponding refrigeration unit to start operation based on the comparison of the collected coolant temperature and the starting temperature of each refrigeration unit.

[0094] In some embodiments, the control device compares the collected ambient temperature with the ambient temperature prohibited from starting the refrigeration unit in the liquid cooling system in real time. If it is determined through comparison that the current ambient temperature is lower than the ambient temperature prohibited from starting the refrigeration unit, the control device controls all refrigeration units to force them to stop running to prevent the excessively low ambient temperature from causing damage to the coolant and the hardware equipment of the refrigeration unit. For example, an excessively low ambient temperature may cause the coolant pressure to be too low, and the refrigeration unit may trigger a corresponding protection mechanism and fail to start.

[0095] The following describes the solution of the embodiment of the present invention in detail with reference to specific application examples:

[0096] See also Figure 7 , Figure 7 The invention relates to a closed cooling system using a control method for a liquid cooling system proposed in an embodiment of the present invention. The system comprises an electric three-way valve, several groups of refrigeration units and several air coolers; wherein, the several groups of refrigeration units are connected in series end to end to form a total refrigeration unit with a single input and output; a first end of the electric three-way valve is connected to the output end of the internal cooling system, a second end of the electric three-way valve is respectively connected to the input ends of several air coolers, and a third end of the electric three-way valve is connected to the input end of the total refrigeration unit; the output end of the refrigeration unit is connected to the input end of the internal cooling system; the output ends of several air coolers are respectively connected to the input end of the total refrigeration unit; when the electric three-way valve is in a closed state, the end connected to the air cooler is closed, and the end connected to the refrigeration unit is opened; when the electric three-way valve is in an open state, the end connected to the air cooler is opened, and the end connected to the refrigeration unit is closed; in some application scenarios, the output end of the air cooler can be directly connected to the input end of the internal cooling system to meet the demand of cooling the coolant with the air cooler alone; refer to Figure 8 , the control module of the closed cooling system is built-in Figure 8The combined control strategy shown controls the refrigeration unit and the air cooler to dissipate heat for the coolant, providing a cooling effect for the internal cooling system. The control module starts running and collects the current ambient temperature T1, the current coolant supply temperature T3 and the return temperature T9 output by the internal cooling system through the set sensors; the control module compares the collected ambient temperature T1 with the ambient temperature T2 allowed for the refrigeration unit to start in the cooling system, and compares the supply temperature T3 with the start-up temperature T4 of the first group of refrigeration units in the refrigeration unit; if the ambient temperature T1 is greater than the ambient temperature T2 allowed for the refrigeration unit to start, and the supply temperature T3 is greater than the start-up temperature T4 of the first group of refrigeration units, the control module starts the first group of refrigeration units to dissipate heat for the high-temperature coolant output by the internal cooling system. At this time, the electric three The three-way valve is closed, and the coolant flows out of the internal cooling system, flows to the refrigeration unit through the electric three-way valve, and then flows from the refrigeration unit to the internal cooling system; if the control module determines through comparison that the ambient temperature T1 is greater than the ambient temperature T2 allowed for the refrigeration unit to start, and the liquid supply temperature T3 is greater than the starting temperature T5 of the second group of refrigeration units, the control module starts the second group of refrigeration units to operate, and the first group of refrigeration units and the second group of refrigeration units dissipate the heat of the high-temperature coolant output by the internal cooling system; similarly, when the ambient temperature T1 is greater than the ambient temperature T2 allowed for the refrigeration unit to start, and the liquid supply temperature T3 is greater than the starting temperature of a certain group of refrigeration units, the control module starts the corresponding refrigeration unit to operate.

[0097] At the same time, the control module detects that the liquid supply temperature T3 is lower than the stop temperature T6 of the second group of refrigeration units, and the control module stops the operation of one group of refrigeration units; if the control module detects that the liquid supply temperature T3 is lower than the stop temperature T7 of the first group of refrigeration units, and detects that the ambient temperature T1 is lower than the ambient temperature T2 allowed to start the refrigeration units, the control module controls all refrigeration units to stop running.

[0098] When the control module detects that the liquid supply temperature T3 is greater than the starting temperature T5+ΔT of the second group of refrigeration units, the control module starts each group of refrigeration units in turn and forces them into operation; where ΔT is the set temperature threshold, which is used to determine whether the coolant temperature is too high, and then determine whether the heat dissipation performance of the cooling system needs to be improved; when the control module detects that the ambient temperature T1 is lower than the ambient temperature T8 at which the refrigeration units are prohibited from starting, the control module stops each group of refrigeration units in turn to avoid damage caused by forced operation of the cooling system in a low-temperature environment.

[0099] When the control module controls the operation of the refrigeration unit to dissipate heat for the coolant, it calculates the temperature difference between the collected return liquid temperature T9 and the ambient temperature T1 in real time, and compares the temperature difference with the return liquid temperature and the ambient temperature difference and the cooling start temperature T10. If the temperature difference is greater than the ambient temperature difference and the cooling start temperature T10, the control module controls the electric three-way valve to open to the open limit, connects the air cooler to the cooling circuit of the coolant, and starts the air cooler fan to dissipate heat for the coolant flowing through the air cooler; if the control module controls the operation of the refrigeration unit to dissipate heat for the coolant, the calculated return liquid temperature The temperature difference between temperature T9 and ambient temperature T1 is compared with the return liquid temperature and the ambient temperature difference and the external cooling shutdown temperature T11. If the temperature difference is less than the ambient temperature difference and the external cooling shutdown temperature T11, the control module controls the electric three-way valve to close the limit, disconnecting the air cooler from the coolant cooling circuit, and when the control module detects that the electric three-way valve is closed to the close limit, the control module turns off the air cooler fan and stops running. At this time, the coolant flowing through the air cooler will not have a good heat dissipation effect, and may even increase the return liquid temperature T9 of the coolant. Therefore, the electric three-way valve is closed, and the refrigeration unit dissipates heat for the coolant.

[0100] The implementation of the embodiments of the present invention includes the following beneficial effects: the embodiments of the present invention provide a control method, device, electronic device and storage medium for a liquid cooling system. The scheme obtains the current ambient temperature, the current coolant temperature in the liquid cooling system and the current return liquid temperature of the coolant returned from the cooled device. When the current ambient temperature is greater than or equal to the preset starting temperature of the liquid cooling system, the refrigeration system in the liquid cooling system is controlled according to the current coolant temperature and the preset unit temperature set; and the three-way valve of the liquid cooling system is switched on and off according to the current return liquid temperature and the current return liquid temperature; the refrigeration unit and the three-way valve in the liquid cooling system are controlled according to the current ambient temperature, the current coolant temperature and the current return liquid temperature, thereby controlling the flow direction of the coolant and controlling the heat dissipation stability and heat dissipation efficiency of the liquid cooling system.

[0101] See also Figure 9 The embodiment of the present invention further provides a control device for a liquid cooling system, which can implement the above-mentioned control method for a liquid cooling system. The device includes:

[0102] The first module is used to obtain the current ambient temperature, the current coolant temperature and the current return liquid temperature, and compare the current ambient temperature with the preset starting temperature;

[0103] The second module is configured to control the refrigeration unit according to the current coolant temperature and a preset unit temperature set if the current ambient temperature is greater than or equal to the preset start temperature;

[0104] The third module is used to control the opening and closing of the three-way valve according to the current return liquid temperature and the current ambient temperature.

[0105] It can be seen that the contents of the above method embodiments are all applicable to the present system embodiments. The functions specifically implemented by the present system embodiments are the same as those of the above method embodiments, and the beneficial effects achieved are also the same as those achieved by the above method embodiments.

[0106] The present application also provides an electronic device comprising a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the aforementioned control method for a liquid cooling system. The electronic device can be any smart terminal, such as a tablet computer or an in-vehicle computer.

[0107] It can be understood that the contents of the above method embodiments are applicable to the present device embodiments, the functions specifically implemented by the present device embodiments are the same as those of the above method embodiments, and the beneficial effects achieved are also the same as those achieved by the above method embodiments.

[0108] See also Figure 10 , Figure 10 The hardware structure of an electronic device according to another embodiment is shown. The electronic device includes:

[0109] The processor 1001 can be implemented as a general-purpose CPU (Central Processing Unit), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits, and is used to execute relevant programs to implement the technical solutions provided in the embodiments of the present application.

[0110] The memory 1002 can be implemented in the form of a read-only memory (ROM), a static storage device, a dynamic storage device, or a random access memory (RAM). The memory 1002 can store an operating system and other application programs. When the technical solutions provided in the embodiments of this specification are implemented through software or firmware, the relevant program code is stored in the memory 1002 and is called by the processor 1001 to execute a control method for a liquid cooling system according to the embodiments of this application.

[0111] Input / output interface 1003, used to implement information input and output;

[0112] Communication interface 1004, used to implement communication interaction between this device and other devices, which can be achieved through wired means (such as USB, network cable, etc.) or wireless means (such as mobile network, WiFi, Bluetooth, etc.);

[0113] Bus 1005 , which transmits information between various components of the device (e.g., processor 1001 , memory 1002 , input / output interface 1003 , and communication interface 1004 );

[0114] The processor 1001 , the memory 1002 , the input / output interface 1003 and the communication interface 1004 are connected to each other in communication within the device via the bus 1005 .

[0115] Among them, the memory is a non-transient computer-readable storage medium that can be used to store non-transient software programs and non-transient computer executable programs. The memory may include a high-speed random access memory and may also include a non-transient memory, such as at least one disk storage device, a flash memory device, or other non-transient solid-state storage device. In some embodiments, the memory optionally includes a remote memory remotely arranged relative to the processor, and these remote memories can be connected to the processor via a network. Examples of the above-mentioned network include but are not limited to the Internet, an intranet, a local area network, a mobile communication network and a combination thereof.

[0116] In addition, the embodiments of the present application further disclose a computer program product or computer program, which is stored in a computer-readable storage medium. The processor of a computer device can read the computer program from the computer-readable storage medium, and the processor executes the computer program, so that the computer device performs the above-mentioned method. Similarly, the contents of the above-mentioned method embodiment are all applicable to the present storage medium embodiment, and the functions specifically implemented by the present storage medium embodiment are the same as those of the above-mentioned method embodiment, and the beneficial effects achieved are also the same as those achieved by the above-mentioned method embodiment.

[0117] An embodiment of the present application further provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, it implements the above-mentioned control method of the liquid cooling system.

[0118] It can be understood that the contents of the above method embodiments are all applicable to the present storage medium embodiment, the functions specifically implemented by the present storage medium embodiment are the same as those of the above method embodiments, and the beneficial effects achieved are also the same as those achieved by the above method embodiments.

[0119] It is understood that all or some steps, systems in the disclosed method above can be implemented as software, firmware, hardware and appropriate combinations thereof. Some physical components or all physical components can be implemented as software by a processor, such as a central processing unit, a digital signal processor or a microprocessor, or implemented as hardware, or implemented as an integrated circuit, such as an application specific integrated circuit. Such software can be distributed on a computer-readable medium, and the computer-readable medium can include computer storage media (or non-transitory media) and communication media (or temporary media). As known to those of ordinary skill in the art, the term computer storage medium is included in any method or technology for storing information (such as computer-readable instructions, data structures, program modules or other data) and is volatile and non-volatile, removable and non-removable media. Computer storage media includes but is not limited to RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cassette, magnetic tape, disk storage or other magnetic storage device, or can be used to store desired information and any other medium that can be accessed by a computer. Furthermore, as is well known to those skilled in the art, communication media typically embodies computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

[0120] The above is a specific description of the preferred implementation of the present invention, but the invention is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A control method for a liquid cooling system, characterized in that: The method comprises: Obtaining a current ambient temperature, a current coolant temperature, and a current return liquid temperature, and comparing the current ambient temperature with a preset starting temperature; If the current ambient temperature is greater than or equal to the preset start temperature, the refrigeration unit is controlled according to the current coolant temperature and the preset unit temperature set; The three-way valve is controlled to be on and off according to the current return liquid temperature and the current ambient temperature.

2. The method according to claim 1, characterized in that The controlling of the refrigeration unit according to the current coolant temperature and the preset unit temperature set specifically includes: Comparing the current coolant temperature with several unit startup temperatures in the preset unit temperature set in sequence to determine a target unit set; wherein the target unit set includes several refrigeration units corresponding to the unit startup temperatures being less than or equal to the current coolant temperature; The refrigeration units are started and operated according to the target unit set.

3. The method according to claim 2, characterized in that The method further comprises: comparing the current coolant temperature with the unit stop temperature in the preset unit temperature set; If the current coolant temperature is greater than or equal to the first preset unit stop temperature, maintain the current state of the refrigeration unit; If the current coolant temperature is lower than the first preset unit stop temperature, stop any one refrigeration unit; If the current coolant temperature is lower than the second preset unit stop temperature and the current ambient temperature is lower than the preset start temperature, all refrigeration units are stopped.

4. The method according to claim 1, wherein The switching control of the three-way valve according to the current return liquid temperature and the current ambient temperature specifically includes: Calculating a difference between the current return liquid temperature and the current ambient temperature to determine a temperature difference, and comparing the temperature difference with a preset valve temperature threshold range; If the temperature difference is greater than the upper limit of the preset valve temperature threshold range, the opening value of the three-way valve is opened according to the preset opening limit value; If the temperature difference is less than the lower limit of the preset valve temperature threshold range, the opening value of the three-way valve is closed according to the preset closing limit value; If the temperature difference falls within the preset valve temperature threshold range, the current opening value of the three-way valve is maintained.

5. The method according to claim 4, characterized in that The method further comprises: Obtaining a current opening value of the three-way valve, and comparing the current opening value with the preset closing limit value; If the current opening value is greater than the preset closing limit value, maintaining the current state of the air cooler fan; If the current opening value is less than or equal to the preset closing limit value, the air cooler fan is controlled to stop running.

6. The method according to claim 1, characterized in that The method further comprises: Calculating a difference between the current coolant temperature and a preset unit startup temperature to determine a temperature difference, and comparing the temperature difference with a preset threshold; If the temperature difference is greater than or equal to the preset threshold, all refrigeration units are started in sequence; If the temperature difference is less than the preset threshold, the process returns to executing the process of controlling the refrigeration unit according to the current coolant temperature and the preset unit temperature set.

7. The method according to claim 1, characterized in that The method further comprises: If the current ambient temperature is lower than the preset prohibition temperature, all refrigeration units are stopped in sequence.

8. A control device for a liquid cooling system, characterized in that: include: The first module is used to obtain the current ambient temperature, the current coolant temperature and the current return liquid temperature, and compare the current ambient temperature with the preset starting temperature; The second module is configured to control the refrigeration unit according to the current coolant temperature and a preset unit temperature set if the current ambient temperature is greater than or equal to the preset start temperature; The third module is used to control the opening and closing of the three-way valve according to the current return liquid temperature and the current ambient temperature.

9. An electronic device, characterized in that: include: at least one processor; at least one memory for storing at least one program; When the at least one program is executed by the at least one processor, the at least one processor implements the method according to any one of claims 1 to 7.

10. A computer-readable storage medium storing a program executable by a processor, characterized in that: The processor-executable program is used to perform the method according to any one of claims 1 to 7 when executed by the processor.

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