Cooling method based on equipment temperature and environment temperature

Abstract

The invention provides a mixed type cooling system and a cooling method. The mixed type cooling system comprises a refrigerant circulating system and an air cooling circulating system. The refrigerant circulation comprises a condenser, a compressor, an evaporator and an expansion valve, the condenser, the expansion valve, the evaporator and the compressor are sequentially connected in a closed loop mode through pipelines, a condensation fan is arranged on the condenser, and a cooling fan is arranged on the evaporator; the air cooling circulation system comprises a ventilation window, an evaporator and a cooling fan, and the cooling fan is matched with the ventilation window for ventilation. The air cooling circulation system is arranged, and heat exchange is conducted under the action of the air cooling system by means of the temperature difference between the outside and the to-be-cooled equipment; meanwhile, a refrigerant circulating system is arranged, the compressor does work to dissipate heat of the to-be-cooled equipment, and the two systems can operate independently and can operate in a combined mode; in addition, according to the temperature detected in real time, the matching mode of the two systems is accurately regulated and controlled, and energy consumption and noise can be reduced.

Description

[0001] This case is a divisional application based on the invention patent filed on March 20, 2023, with application number 202310271116.8 and titled "A Hybrid Cooling System and Cooling Method". Technical Field

[0002] This invention relates to the field of refrigeration technology, and in particular to a hybrid cooling system and cooling method. Background Technology

[0003] With the promotion and application of new energy sources such as solar and wind power, energy storage technology has also developed. Among them, lithium batteries have gradually become the mainstream energy storage product due to their advantages such as high energy density, long service life, high rated voltage, high power handling capacity, low self-discharge rate, light weight, green and environmentally friendly properties, and minimal water consumption during production.

[0004] Currently, lithium battery technology is commonly used in commercial and industrial energy storage systems and photovoltaic-energy storage charging and testing systems. However, since these applications are mostly located in urban or industrial areas, it is necessary to control the noise level during system operation and reduce energy consumption. In addition, commercial and industrial energy storage systems and photovoltaic-energy storage charging and testing systems also contain electrical equipment such as PCS, DC-DC converters, and photovoltaic controllers that are used in conjunction with lithium batteries, which generate a significant amount of heat overall.

[0005] In existing technologies, lithium battery container systems use ordinary air conditioning systems for cooling, but they consume a lot of electricity and are difficult to control in terms of noise, resulting in high system operating costs. While general air-cooling technology is quieter and consumes less energy, it is difficult to achieve effective cooling. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a hybrid cooling system and cooling method, which combines a refrigerant circulation system and an air-cooling circulation system, and formulates a corresponding combination strategy based on the real-time detected ambient temperature and equipment temperature to reduce energy consumption and noise.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: A hybrid cooling system includes a refrigerant circulation system and an air-cooled circulation system; The refrigerant circulation system includes a condenser, a compressor, an evaporator, and an expansion valve. The condenser, the expansion valve, the evaporator, and the compressor are connected in a closed loop via pipelines. The condenser is equipped with a condensing fan, and the evaporator is equipped with a cooling fan. The air-cooled circulation system includes a ventilation window, the evaporator, and the cooling fan, with the cooling fan working in conjunction with the ventilation window for air exchange.

[0008] To solve the above-mentioned technical problems, another technical solution provided by the present invention is as follows: A cooling method, applied to the aforementioned hybrid cooling system, includes the following steps: S1. Obtain the ambient temperature of the external environment and the equipment temperature of the equipment to be cooled; S2. Calculate the cooling rate based on the real-time acquired equipment temperature; S3. When the cooling rate is detected to be less than the preset cooling rate, the operating power of the compressor is increased.

[0009] The beneficial effects of this invention are as follows: This invention provides a hybrid cooling system and cooling method, which sets up an air-cooled circulation system that utilizes the temperature difference between the outside environment and the equipment to be cooled to exchange heat under the action of the air-cooled system; at the same time, a refrigerant circulation system is set up to use the compressor to dissipate heat from the equipment to be cooled. The two systems can operate independently or in combination; in addition, the coordination mode of the two systems can be precisely adjusted according to the real-time detected temperature, which can reduce energy consumption and achieve the effect of reducing noise. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of a hybrid cooling system according to an embodiment of the present invention; Figure 2 This is a flowchart of a cooling method according to an embodiment of the present invention; Figure 3 This is a detailed flowchart of a cooling method provided in Embodiment 5 of the present invention; Label Explanation: 1. Compressor; 2. Condenser; 3. Condenser fan; 4. Expansion valve; 5. Ventilation window; 6. Dustproof device; 7. Cooling fan; 8. Evaporator; 9. Equipment to be cooled; 10. Ambient temperature sensor; 11. Equipment temperature sensor. Detailed Implementation

[0011] To explain in detail the technical content, objectives, and effects of the present invention, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0012] Please refer to Figure 1 A hybrid cooling system, characterized in that it includes a refrigerant circulation system and an air-cooled circulation system; The refrigerant circulation system includes a compressor 1, a condenser 2, an evaporator 8, and an expansion valve 4. The condenser 2, the expansion valve 4, the evaporator 8, and the compressor 1 are connected in a closed loop through pipelines. The condenser 2 is equipped with a condensing fan 3, and the evaporator 8 is equipped with a cooling fan 7. The air-cooled circulation system includes a ventilation window 5, an evaporator 8, and a cooling fan 7. The cooling fan 7 works in conjunction with the ventilation window 5 to perform air exchange.

[0013] The working principle of this invention is as follows: First, the condenser 2, compressor 1, evaporator 8, and expansion valve 4 are sequentially connected in a closed loop to form a refrigerant cycle, i.e., a general refrigeration cycle. During operation, the condenser 2 cools the refrigerant through the condenser fan 3, and the evaporator 8 achieves air cooling of the equipment 9 to be cooled through the cooling fan 7. Second, the ventilation window 5, evaporator 8, and cooling fan 7 form an air-cooling cycle. During operation, when the cooling system detects that the temperature difference between the equipment and the outside temperature is higher than a preset value, the ventilation window 5 is opened, and under the action of the cooling fan 7, heat exchange is carried out using the outside air and the inside hot air. Finally, according to system control, the two systems can operate in parallel or independently to cool the equipment 9.

[0014] Furthermore, the air-cooled circulation system also includes a dustproof device 6, which is located inside the ventilation window 5.

[0015] Furthermore, the dustproof device 6 is a filter cotton dustproof net.

[0016] As described above, in order to prevent dust or small particles from being brought in by outside air and damaging the relevant facilities of the cooling system, a dustproof device 6 is installed inside the ventilation window 5. Specifically, the dustproof device 6 can be a filter cotton dustproof net.

[0017] Furthermore, the ventilation window 5 is an electric louvered door.

[0018] As can be seen from the above description, in order to enhance the control performance of the ventilation window 5, an electric louver is specially selected to be used in conjunction with an air-cooling system for heat exchange.

[0019] Furthermore, in order to facilitate real-time monitoring of the ambient temperature and the temperature of the equipment to be cooled, the system also includes an ambient temperature sensor 10 and an equipment temperature sensor 11. The ambient temperature sensor 10 is used to detect the ambient temperature of the external environment, and the equipment temperature sensor 11 is used to detect the temperature of the equipment with cooling device 9.

[0020] To solve the above-mentioned technical problems, another technical solution provided by the present invention is as follows: Combination Figures 2-3 A cooling method, applied to the aforementioned hybrid cooling system, characterized by comprising the steps of: S1. Obtain the ambient temperature of the external environment and the equipment temperature of the equipment to be cooled; S2. Calculate the cooling rate based on the real-time acquired equipment temperature; S3. When the cooling rate is detected to be less than the preset cooling rate, the operating power of the compressor is increased.

[0021] As can be seen from the above description, the beneficial effects of the present invention are as follows: Based on the same technical concept, a hybrid cooling system is adopted to provide a cooling method. In order to save energy and reduce the noise generated by the compressor operation, the compressor in the refrigerant circulation system is controlled to operate at a certain power and perform cooling work simultaneously with the air-cooled circulation system. However, in order to prevent the equipment from overheating and the phenomenon of untimely cooling, the cooling rate of the equipment to be cooled is monitored in real time. If the cooling rate is less than the preset cooling rate, the compressor speed is controlled to increase to enhance the cooling effect of the refrigerant circulation system.

[0022] Furthermore, S3 specifically refers to: S31. When the difference between the temperature of the device and the ambient temperature is detected to be lower than the first preset temperature, the compressor is adjusted to operate at the first preset power. S32. When the difference between the temperature of the device and the ambient temperature is detected to be lower than the nth preset temperature, the compressor is adjusted to operate at the nth preset power; the (n-1)th preset temperature is greater than the nth preset temperature, the (n-1)th preset power is less than the nth preset power, the nth preset power is the maximum output power of the compressor, and n is a positive integer greater than or equal to 2; S33. In any step of S31-S32, if the temperature drop rate of the device is detected to be less than the preset temperature drop rate, the current preset power of the compressor is increased to the (m+1)th preset power, where m is a positive integer greater than or equal to 1 and less than n.

[0023] As described above, in steps S31 and S32, the system presets a first preset temperature, a second preset temperature, ..., an (n-1)th preset temperature and an nth preset temperature, as well as a first preset power, a second preset power, ..., an (n-1)th preset power and an nth preset power. The nth preset power is the maximum output power of the compressor, meaning that when the compressor reaches the nth preset power, the refrigerant circulation system operates at full power. At the same time, the following conditions are preset: the (n-1)th preset temperature is greater than the nth preset temperature, and the (n-1)th preset power is less than the nth preset power, where n is a positive integer greater than or equal to 2.

[0024] After the system completes the preset, when the difference between the device temperature sensed by the temperature sensor and the ambient temperature is lower than the first preset temperature, the system adjusts the compressor to operate at the first preset power; when the difference between the sensed device temperature and the ambient temperature is lower than the second preset temperature, the system adjusts the compressor to operate at the second preset power; when the difference between the device temperature and the ambient temperature is detected to be lower than the nth preset temperature, the compressor is adjusted to operate at the nth preset power. That is, each preset temperature has a corresponding preset power, and when it is lower than the preset temperature, the compressor operates at the preset power corresponding to the preset temperature that is lower.

[0025] For example: the first preset temperature range is 14-16℃, the second preset temperature range is 9-12℃, ... the (n-1)th preset temperature range is 5-8℃, the nth preset temperature range is 1-4℃, the corresponding first preset power range is 30%-50% of the maximum operating power, the second preset power range is 50%-70% of the maximum operating power, the (n-1)th preset power range is 70%-90% of the maximum operating power, and the nth preset power is the compressor's maximum operating power.

[0026] Preferably, the value of n is 4, the range of the first preset temperature is 14-16℃, the range of the second preset temperature is 9-12℃, the range of the third preset temperature is 5-8℃, the range of the fourth preset temperature is 1-4℃, the corresponding range of the first preset power is 30%-50% of the maximum operating power of the compressor, the range of the second preset power is 50%-70% of the maximum operating power of the compressor, the range of the third preset power is 70%-90% of the maximum operating power of the compressor, and the nth preset power is the maximum operating power of the compressor.

[0027] More specifically, preferably, n is 4, the first preset temperature is 15℃, the second preset temperature is 10℃, the third preset temperature is 6℃, the fourth preset temperature is 3℃, and the corresponding first preset power is 40% of the compressor's maximum operating power, the second preset power is 60% of the compressor's maximum operating power, the third preset power is 80% of the compressor's maximum operating power, and the fourth preset power is the compressor's maximum operating power.

[0028] Meanwhile, as described in step S33: In any step of S31-S32, if the temperature drop rate of the device is detected to be less than the preset temperature drop rate, the current m-th preset power of the compressor is increased to the (m+1)-th preset power, where m is a positive integer greater than or equal to 1 and less than n. That is, there is a preset temperature drop rate in the system. When the temperature drop rate of the device is detected to be lower than the preset temperature drop rate, it indicates that the current cooling effect is insufficient. To prevent the device from overheating, the compressor output power is increased to the next preset power level below the current preset power. For example: When the system environment is 10°C lower than the second preset temperature in the above example, the compressor's operating power is the second preset power, i.e., 60% of the maximum operating power. When the temperature drop rate is detected to be less than the preset temperature drop rate, the compressor's operating power is controlled to the third preset power, i.e., 80% of the maximum operating power. If the cooling effect is still not satisfied within a specified time, the compressor's operating power continues to increase until the compressor outputs full power. Preferably, the preset cooling rate is in the range of 0.2-0.5℃ / min; more specifically, the preset cooling rate is 0.3℃ / min.

[0029] Furthermore, S33 specifically includes: S331. In any step of S31-S32, if it is detected that the cooling rate of the device temperature is continuously less than the preset cooling rate within a first preset time period, the current m-th preset power is increased to the (m+1)-th preset power, where m is a positive integer greater than or equal to 1 and less than n. S332. If it is detected that the cooling rate of the equipment temperature is continuously less than the preset cooling rate within a first preset time period and the operating power of the compressor is the nth preset power, then control the alarm to issue an alarm.

[0030] As described above, to prevent excessively frequent system power adjustments that could damage the equipment, a first preset time period is added to the system. If the actual cooling rate remains lower than the preset cooling rate for an extended period within this first preset time period, the compressor's operating power is increased. Simultaneously, an early warning system is added to the system, primarily to prevent overheating of the equipment and the inability of the cooling system to cool it down. Specifically, if the actual cooling rate remains lower than the preset cooling rate for an extended period within this first preset time period, and the compressor has already reached the nth preset power (maximum output power), it indicates that the entire cooling system is unable to cool the equipment, and an alarm is triggered to alert relevant personnel to take action. Preferably, the first preset time period ranges from 2 to 4 minutes; more preferably, it ranges from 3 minutes.

[0031] Furthermore, it also includes step S4, which follows step S3, and step S4 specifically involves: S4. When the difference between the device temperature and the ambient temperature is less than or equal to the nth preset temperature, control the ventilation window to close and control the compressor to operate at the nth preset power.

[0032] Furthermore, it also includes step S0, which precedes step S1, and step S0 specifically includes: S0. When the difference between the temperature of the device and the ambient temperature is detected to be greater than or equal to a first preset temperature, the compressor is controlled to shut down and the ventilation window is controlled to open.

[0033] As described above, according to step S4, when the difference between the equipment temperature and the ambient temperature is less than or equal to the nth preset temperature, the ventilation window is closed and the compressor operates at its maximum output power. At this time, the air-cooled circulation system is shut down and the refrigerant circulation system operates independently. The purpose is that when the difference between the equipment temperature and the ambient temperature is less than or equal to the nth preset temperature, the ambient temperature and the equipment temperature are relatively close, and the cooling effect obtained from the external environment is limited or even non-existent. Therefore, the ventilation window is closed and the refrigerant circulation system operates independently.

[0034] Simultaneously, as described in step S0, when the difference between the equipment temperature and the ambient temperature is detected to be greater than or equal to a first preset temperature, the compressor is controlled to shut down and the ventilation window is controlled to open. At this time, the refrigerant circulation system is shut down, and the air-cooled circulation system operates independently. The purpose is that when the difference between the equipment temperature and the ambient temperature is greater than or equal to the first preset temperature, the temperature difference between the equipment temperature and the ambient temperature is relatively large, meaning that the required cooling effect can be achieved simply by exchanging heat with the external environment. Therefore, the compressor is shut down, and the air-cooled circulation system operates independently.

[0035] Embodiment 1 of the present invention is as follows: Please refer to Figure 1 A hybrid cooling system is characterized by comprising a refrigerant circulation system and an air-cooled circulation system. The refrigerant circulation system includes a condenser, a compressor, an evaporator, and an expansion valve. The condenser, expansion valve, evaporator, and compressor are sequentially connected in a closed loop via pipelines. A condensing fan is installed on the condenser, and a cooling fan is installed on the evaporator. The air-cooled circulation system includes an electric louvered door, an evaporator, and a cooling fan. The cooling fan works in conjunction with the electric louvered door for ventilation. The air-cooled circulation system also includes a dustproof device located inside the ventilation window, specifically a filter cotton dustproof screen. The cooling system further includes an ambient temperature sensor and an equipment compartment temperature sensor. The ambient temperature sensor detects the ambient temperature, and the equipment compartment temperature sensor detects the temperature of the equipment to be cooled, specifically electrical equipment.

[0036] The working principle of this embodiment is as follows: First, the condenser, compressor, evaporator, and expansion valve are connected in a closed loop to form a refrigerant cycle, i.e., a general refrigeration cycle. During operation, the condenser cools the refrigerant through a condenser fan, and the evaporator achieves air cooling of the equipment to be cooled through a cooling fan. Second, the electric louver, evaporator, and cooling fan form an air cooling cycle. During operation, when the cooling system detects that the temperature difference between the equipment and the outside temperature is higher than a preset value, the electric louver opens, and heat exchange is carried out between the outside air and the internal hot air under the action of the cooling fan. Finally, according to system control, the two systems can operate in parallel or independently to cool the equipment to be cooled.

[0037] Embodiment 2 of the present invention is as follows: Please refer to Figure 2 A cooling method, applied to a hybrid cooling system in Embodiment 1 above, characterized by comprising the following steps: S1. Obtain the ambient temperature of the external environment and the equipment temperature of the equipment to be cooled; S2. Calculate the cooling rate based on the real-time acquired equipment temperature; S3. When the cooling rate is detected to be less than the preset cooling rate, increase the compressor speed.

[0038] In this embodiment, based on the same technical concept, a hybrid cooling system as described above is used to provide a cooling method. The purpose is to save energy and reduce the noise generated by the compressor operation. The main concept is that the compressor in the refrigerant circulation system is controlled to operate at a certain power and performs cooling work simultaneously with the air-cooled circulation system. However, in order to prevent the equipment from overheating and the phenomenon of untimely cooling, the cooling rate of the equipment to be cooled is monitored in real time. If the cooling rate is less than the preset cooling rate, the compressor speed is controlled to increase in order to enhance the cooling effect of the refrigerant circulation system.

[0039] Embodiment 3 of the present invention is as follows: Please refer to Figure 3 Based on Example 2, S3 specifically includes: S31. When the difference between the equipment temperature and the ambient temperature is detected to be lower than the first preset temperature, the compressor is adjusted to operate at the first preset power. S32. When the difference between the equipment temperature and the ambient temperature is detected to be lower than the nth preset temperature, the compressor is adjusted to operate at the nth preset power; the (n-1)th preset temperature is greater than the nth preset temperature, the (n-1)th preset power is less than the nth preset power, the nth preset power is the maximum output power of the compressor, and n is a positive integer greater than or equal to 2. S33. In any step of S31-S32, if the temperature drop rate of the equipment is detected to be less than the preset temperature drop rate, the current preset power of the compressor at the m-th preset power is increased to the preset power at the (m+1)-th preset power, where m is a positive integer greater than or equal to 1 and less than n.

[0040] In this embodiment, the system presets a first preset temperature, a second preset temperature, ..., an (n-1)th preset temperature, and an nth preset temperature, as well as a first preset power, a second preset power, ..., an (n-1)th preset power, and an nth preset power. The nth preset power is the maximum output power of the compressor; that is, when the compressor reaches the nth preset power, the refrigerant circulation system operates at full power. Simultaneously, the system presets that: the (n-1)th preset temperature is greater than the nth preset temperature, and the (n-1)th preset power is less than the nth preset power, where n is a positive integer greater than or equal to 2. After the presets are completed within the system, when the difference between the device temperature sensed by the temperature sensor and the ambient temperature is lower than the first preset temperature, the system adjusts the compressor to operate at the first preset power; when the difference between the sensed device temperature and the ambient temperature is lower than the second preset temperature, the system adjusts the compressor to operate at the second preset power; and when the difference between the detected device temperature and the ambient temperature is lower than the nth preset temperature, the system adjusts the compressor to operate at the nth preset power. In other words, each preset temperature has a corresponding preset power, and when the temperature is lower than a preset temperature, the compressor operates at the preset power corresponding to the lower preset temperature.

[0041] Preferably, the value of n is 4, the first preset temperature is 15℃, the second preset temperature range is 10℃, the third preset temperature range is 6℃, the fourth preset temperature range is 3℃, and the corresponding first preset power is 40% of the compressor's maximum operating power, the second preset power is 60% of the compressor's maximum operating power, the third preset power is 80% of the compressor's maximum operating power, and the fourth preset power is the compressor's maximum operating power.

[0042] Meanwhile, as described in step S33: In any step of S31-S32, if the temperature drop rate of the equipment is detected to be less than the preset temperature drop rate, the current preset power of the compressor is increased to the (m+1)th preset power, where m is a positive integer greater than or equal to 1 and less than n. That is, there is a preset temperature drop rate in the system. When the temperature drop rate of the equipment is detected to be lower than the preset temperature drop rate, it indicates that the current cooling effect is insufficient. To prevent the equipment from overheating, the compressor output power is increased to the next preset power level below the current preset power. For example: When the system environment is 10°C lower than the second preset temperature in the above example, the compressor's operating power is the second preset power, i.e., 60% of the maximum operating power. When the temperature drop rate is detected to be less than the preset temperature drop rate, the compressor's operating power is controlled to the third preset power, i.e., 80% of the maximum operating power. If the cooling effect is still not satisfied within a specified time, the compressor's operating power continues to increase until the compressor outputs full power. Preferably, the preset temperature drop rate is 0.3°C / min.

[0043] Embodiment four of the present invention is as follows: Please refer to Figure 3 Based on Example 3, S33 specifically includes: S331. In any step of S31-S32, if it is detected that the cooling rate of the equipment temperature is continuously less than the preset cooling rate within the first preset time period, the current m-th preset power is increased to the (m+1)-th preset power, where m is a positive integer greater than or equal to 1 and less than 4. S332. If the temperature drop rate of the equipment is detected to be less than the preset temperature drop rate for a first preset time period and the compressor operating power is the fourth preset power, then the alarm will be activated.

[0044] In this embodiment, to prevent excessively frequent system power adjustments that could damage the equipment, a first preset time period of 3 minutes is added to the system. If the actual cooling rate remains below the preset cooling rate for 3 minutes, the compressor's operating power is increased. Simultaneously, an early warning system is added to the system to prevent situations where the equipment overheats and the cooling system is unable to cool it. Specifically, if the actual cooling rate remains below the preset cooling rate for 3 minutes, and the compressor has already reached the fourth preset power (maximum output power), it indicates that the entire cooling system is unable to cool the equipment, and an alarm is triggered to alert relevant personnel to take action.

[0045] Embodiment five of the present invention is as follows: Please refer to Figure 3 Based on Embodiment 4, it also includes steps S0 and S4, with step S0 preceding step S1 and step S4 following step S3. Step S0 specifically involves: when the difference between the equipment temperature and the ambient temperature is detected to be greater than or equal to the first preset temperature, controlling the compressor to shut down and controlling the ventilation window to open.

[0046] Step S4 specifically involves: when the difference between the equipment temperature and the ambient temperature is less than or equal to the fourth preset temperature, controlling the ventilation window to close and controlling the compressor to operate at the fourth preset power.

[0047] In this embodiment, according to step S0, when the difference between the equipment temperature and the ambient temperature is detected to be greater than or equal to a first preset temperature, the compressor is controlled to shut down and the ventilation window is controlled to open. At this time, the refrigerant circulation system is shut down, and the air-cooled circulation system operates independently. The purpose is that when the difference between the equipment temperature and the ambient temperature is greater than or equal to the first preset temperature, the temperature difference between the equipment temperature and the ambient temperature is relatively large, that is, the temperature difference is large. The required cooling effect can be achieved by heat exchange only from the external environment, so the compressor is shut down and the air-cooled circulation system operates independently.

[0048] Meanwhile, as described in step S4, when the difference between the equipment temperature and the ambient temperature is less than or equal to the nth preset temperature, the ventilation window is closed and the compressor operates at its maximum output power. At this time, the air-cooled circulation system is shut down and the refrigerant circulation system operates independently. The purpose is that when the difference between the equipment temperature and the ambient temperature is less than or equal to the nth preset temperature, the ambient temperature and the equipment temperature are relatively close, and the cooling effect obtained from the external environment is limited or even non-existent. Therefore, the ventilation window is closed and the refrigerant circulation system operates independently.

[0049] In summary, this invention provides a hybrid cooling system and method, which includes an air-cooled circulation system that utilizes the temperature difference between the outside environment and the equipment to be cooled to exchange heat under the action of the air-cooling system; at the same time, a refrigerant circulation system is set up to use the compressor to dissipate heat from the equipment to be cooled. The two systems can operate independently or in combination; in addition, the coordination mode of the two systems can be precisely adjusted according to the real-time temperature detection, which can reduce both energy consumption and noise.

[0050] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent modifications made based on the content of the present invention specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A cooling method based on equipment temperature and ambient temperature, applied to a hybrid cooling system, characterized in that, The hybrid cooling system includes a refrigerant circulation system and an air-cooled circulation system; The refrigerant circulation system includes a condenser, a compressor, an evaporator, and an expansion valve. The condenser, the expansion valve, the evaporator, and the compressor are connected in a closed loop via pipelines. The condenser is equipped with a condensing fan, and the evaporator is equipped with a cooling fan. The air-cooled circulation system includes a ventilation window, the evaporator, and the cooling fan, wherein the cooling fan works in conjunction with the ventilation window to perform air exchange. It also includes an ambient temperature sensor and an equipment temperature sensor, wherein the ambient temperature sensor is used to detect the ambient temperature of the external environment, and the equipment temperature sensor is used to detect the equipment temperature of the equipment to be cooled; The cooling method includes the following steps: S1. Obtain the ambient temperature of the external environment and the equipment temperature of the equipment to be cooled; S2. Calculate the cooling rate based on the real-time acquired device temperature; S3. When the cooling rate is detected to be less than the preset cooling rate, increase the operating power of the compressor; Specifically, S3 is: S31. When the difference between the temperature of the device and the ambient temperature is detected to be lower than the first preset temperature, the compressor is adjusted to operate at the first preset power. S32. When the difference between the temperature of the device and the ambient temperature is detected to be lower than the nth preset temperature, the compressor is adjusted to operate at the nth preset power; the (n-1)th preset temperature is greater than the nth preset temperature, the (n-1)th preset power is less than the nth preset power, the nth preset power is the maximum output power of the compressor, and n is a positive integer greater than or equal to 2; S33. In any step of S31-S32, if the temperature drop rate of the device is detected to be less than the preset temperature drop rate, the current preset power of the compressor is increased to the (m+1)th preset power, where m is a positive integer greater than or equal to 1 and less than n.

2. The cooling method based on equipment temperature and ambient temperature according to claim 1, characterized in that: The air-cooled circulation system also includes a dustproof device, which is located inside the ventilation window.

3. The cooling method based on equipment temperature and ambient temperature according to claim 2, characterized in that: The dustproof device is a filter cotton dustproof net.

4. The cooling method based on equipment temperature and ambient temperature according to claim 1, characterized in that: The ventilation window is an electric louvered door.

5. The cooling method based on equipment temperature and ambient temperature according to claim 1, characterized in that, Specifically, S33 is: S331. In any step of S31-S32, if it is detected that the cooling rate of the device temperature is continuously less than the preset cooling rate within a first preset time period, the current m-th preset power is increased to the (m+1)-th preset power, where m is a positive integer greater than or equal to 1 and less than n. S332. If it is detected that the cooling rate of the equipment temperature is continuously less than the preset cooling rate within a first preset time period and the operating power of the compressor is the nth preset power, then control the alarm to issue an alarm.

6. A cooling method based on equipment temperature and ambient temperature according to claim 5, characterized in that, It also includes step S4, which follows step S3, and step S4 specifically involves: S4. When the difference between the device temperature and the ambient temperature is less than or equal to the nth preset temperature, control the ventilation window to close and control the compressor to operate at the nth preset power.

7. The cooling method based on equipment temperature and ambient temperature according to claim 1, characterized in that, It also includes step S0, which precedes step S1, and step S0 specifically includes: S0. When the difference between the temperature of the device and the ambient temperature is detected to be greater than or equal to a first preset temperature, the compressor is controlled to shut down and the ventilation window is controlled to open.

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