Refrigeration equipment, its control method and control device

Abstract

The present invention discloses a refrigeration device, its control method and control device. Among them, the control method of the refrigeration device includes: obtaining the ambient temperature and the target temperature, and determining the required air pressure of the water collection tank according to the ambient temperature and the target temperature; controlling a vacuum device to pump the air pressure of the water collection tank to the required air pressure value of the water collection tank according to the required air pressure of the water collection tank; and controlling a blower to send the inhaled air to a heat exchange device. The technical solution of the present invention can reduce the damage of the refrigerant to the environment.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigeration, and particularly to a refrigeration device, a control method thereof, and a control device thereof. Background Art

[0002] Currently, in refrigeration devices, chlorofluorocarbons (i.e., CFCs) and hydrochlorofluorocarbons (i.e., HCFCs) are widely used as refrigerants. However, when such refrigerants are used in refrigeration devices, they will cause damage to the environment. Summary of the Invention

[0003] The main object of the present invention is to provide a control method for a refrigeration device, aiming to reduce the damage of the refrigerant to the environment.

[0004] To achieve the above object, the control method for a refrigeration device proposed by the present invention, the refrigeration device includes a water collecting tank, a vacuum device, a heat exchange device, and a fan; the suction port of the vacuum device is communicated with the air in the water collecting tank; the heat exchange device is connected to the water collecting tank for heat exchange; the fan is arranged corresponding to the heat exchange device for sending air to the heat exchange device, and the control method for the refrigeration device includes:

[0005] Obtain the ambient temperature and the target temperature, and determine the required air pressure of the water collecting tank according to the ambient temperature and the target temperature;

[0006] Control the vacuum device to pump the air pressure of the water collecting tank to the required air pressure value of the water collecting tank according to the required air pressure of the water collecting tank; and,

[0007] Control the fan to send the inhaled air to the heat exchange device.

[0008] Optionally, the control method for the refrigeration device further includes:

[0009] Obtain the air pressure of the water collecting tank, and determine whether the air pressure of the water collecting tank matches the required air pressure of the water collecting tank;

[0010] If it is determined that the air pressure of the water collecting tank matches the required air pressure of the water collecting tank, start timing as the first duration, and adjust or maintain the air pressure extraction speed of the vacuum device and / or the rotation speed of the fan according to the first duration, the ambient temperature, and the target temperature;

[0011] If it is determined that the air pressure of the water collecting tank does not match the required air pressure of the water collecting tank, adjust the air pressure extraction speed of the vacuum device until the air pressure of the water collecting tank matches the required air pressure of the water collecting tank.

[0012] Optionally, the adjusting the air pressure extraction speed of the vacuum device and / or the rotation speed of the fan according to the first duration, the ambient temperature, and the target temperature includes:

[0013] Determine the temperature difference between the ambient temperature and the target temperature as the first temperature difference, and determine the temperature range in which the first temperature difference is located;

[0014] When the first temperature difference is within the first temperature range, maintain the air pressure extraction speed of the vacuum device and / or the rotation speed of the fan unchanged;

[0015] When the first temperature difference is within the second temperature range and the first duration is less than the preset duration, increase the air pressure extraction speed of the vacuum device, or increase the rotation speed of the fan;

[0016] When the first temperature difference is within the third temperature range and the first duration is not less than the preset duration, increase the air pressure extraction speed of the vacuum device and the rotation speed of the fan;

[0017] Wherein, the highest temperature value in the first temperature range is not greater than the lowest temperature value in the second temperature range, and the highest temperature value in the second temperature range is not greater than the lowest temperature value in the third temperature range.

[0018] Optionally, the refrigeration device includes a water supply device, and the water injection port of the water supply device is communicated with the water collecting tank for supplying water to the water collecting tank;

[0019] The control method of the refrigeration device further includes:

[0020] Obtain the water level in the water collecting tank;

[0021] When the water level in the water collecting tank is lower than the preset water level, control the water supply device to supply water to the water collecting tank until the water level in the water collecting tank matches the preset water level;

[0022] When the water level in the water collecting tank is higher than the set water level, control the water supply device to stop supplying water to the water collecting tank, and the set water level is higher than the preset water level.

[0023] Optionally, the control method of the refrigeration device further includes:

[0024] Obtain the water level change speed in the water collecting tank;

[0025] Control the water supply speed of the water supply device to supply water to the water collecting tank according to the water level change speed.

[0026] Optionally, the heat exchange device includes a first heat exchanger, which is communicated with the water collecting tank and is used to access the water in the water collecting tank; the suction port of the vacuum device is communicated with the air in the first heat exchanger; the water collecting tank has a first interface and a second interface; the first heat exchanger has a water inlet and a water outlet; the refrigeration device further includes: a first pump body, the water suction port of the first pump body is communicated with the first interface of the water collecting tank, and the water discharge port of the first pump body is communicated with the water inlet of the first heat exchanger; and / or, the refrigeration device further includes: a second pump body, the water suction port of the second pump body is communicated with the water outlet of the first heat exchanger, and the water discharge port of the second pump body is communicated with the second interface of the water collecting tank. The control method of the refrigeration device further includes:

[0027] Obtain the operation duration of the refrigeration device under preset conditions, and determine whether the operation duration of the vacuum device reaches a preset operation duration;

[0028] If it is determined that the operation duration of the vacuum device reaches the preset operation duration, determine the second temperature difference between the ambient temperature and the target temperature, and adjust at least one of the extraction speed of the vacuum device, the rotation speed of the fan, the rotation speed of the first pump body and / or the rotation speed of the second pump body according to the second temperature difference;

[0029] If it is determined that the operation duration of the vacuum device does not reach the preset operation duration, maintain the extraction speed of the current vacuum device, the rotation speed of the fan, the rotation speed of the first pump body and / or the rotation speed of the second pump body.

[0030] Optionally, the adjusting at least one of the extraction speed of the vacuum device, the rotation speed of the fan, the rotation speed of the first pump body and / or the rotation speed of the second pump body according to the second temperature difference includes:

[0031] Determine the preset temperature range where the second temperature difference is located;

[0032] When the second temperature difference is in the third temperature range, maintain the extraction speed of the vacuum device, the rotation speed of the fan, the rotation speed of the first pump body and / or the rotation speed of the second pump body unchanged;

[0033] When the second temperature difference is in the fourth temperature range, increase any one or any two of the extraction speed of the vacuum device, the rotation speed of the fan, the rotation speed of the first pump body and / or the rotation speed of the second pump body;

[0034] When the second temperature difference is in the fifth temperature range, increase the extraction speed of the vacuum device, the rotation speed of the fan, the rotation speed of the first pump body and / or the rotation speed of the second pump body;

[0035] Among them, the highest temperature value in the third temperature range is not greater than the lowest temperature value in the fourth temperature range; the highest temperature value in the fourth temperature range is not greater than the lowest temperature value in the fifth temperature range.

[0036] The present invention also provides a control device for a refrigeration device. The refrigeration device includes a water collecting tank, a vacuum device, a heat exchange device, and a blower; the suction port of the vacuum device is in communication with the air in the water collecting tank; the heat exchange device is connected to the water collecting tank for heat exchange; the blower is arranged corresponding to the heat exchange device for sending air to the heat exchange device; the control device of the refrigeration device includes:

[0037] A memory;

[0038] A processor; and,

[0039] A control program for the refrigeration device stored on the memory and executable on the processor. When the processor executes the control program of the refrigeration device, the control method of the refrigeration device as described above is implemented.

[0040] The present invention also provides a control device for a refrigeration device. The refrigeration device includes a water collecting tank, a vacuum device, a first heat exchanger, a blower, and a water supply device; the suction port of the vacuum device is in communication with the air in the water collecting tank; the heat exchange device is connected to the water collecting tank for heat exchange; the blower is arranged corresponding to the heat exchange device for sending air to the heat exchange device; the refrigeration device includes a water supply device, and the water injection port of the water supply device is in communication with the water collecting tank for supplying water to the water collecting tank. The control device of the refrigeration device includes:

[0041] A memory;

[0042] A processor; and,

[0043] A control program for the refrigeration device stored on the memory and executable on the processor. When the processor executes the control program of the refrigeration device, the control method of the refrigeration device as described above is implemented.

[0044] The present invention also provides a control device for a refrigeration device, the refrigeration device including a water collection tank, a vacuum device, a first heat exchanger, a blower, and a water supply device; the suction port of the vacuum device is in communication with the air in the water collection tank; the heat exchange device is connected to the water collection tank for heat exchange; the blower is arranged corresponding to the heat exchange device for sending air to the heat exchange device; the refrigeration device includes a water supply device, and the water injection port of the water supply device is in communication with the water collection tank for supplying water to the water collection tank; the heat exchange device includes a first heat exchanger, the first heat exchanger is in communication with the water collection tank for accessing the water in the water collection tank; the suction port of the vacuum device is in communication with the air in the first heat exchanger; the water collection tank has a first interface and a second interface; the first heat exchanger has a water inlet and a water outlet; the refrigeration device further includes: a first pump body, the water suction port of the first pump body is in communication with the first interface of the water collection tank, and the water discharge port of the first pump body is in communication with the water inlet of the first heat exchanger; and / or, the refrigeration device further includes: a second pump body, the water suction port of the second pump body is in communication with the water outlet of the first heat exchanger, and the water discharge port of the second pump body is in communication with the second interface of the water collection tank, and the control device of the refrigeration device includes:

[0045] a memory;

[0046] a processor; and,

[0047] a control program for the refrigeration device stored on the memory and executable on the processor, and when the processor executes the control program for the refrigeration device, the control method for the refrigeration device as described above is implemented.

[0048] The present invention also provides a refrigeration device, the refrigeration device including:

[0049] a water collection tank;

[0050] a vacuum device, the suction port of the vacuum device being in communication with the air in the water collection tank;

[0051] a heat exchange device, being connected to the water collection tank for heat exchange;

[0052] a blower, arranged corresponding to the heat exchange device for sending air to the heat exchange device; and,

[0053] the control device for the refrigeration device as described above, the control device for the refrigeration device being electrically connected to the vacuum device and the blower respectively.

[0054] The control method of the refrigeration equipment of the present invention realizes the refrigeration function of the refrigeration equipment by obtaining the ambient temperature and the target temperature, and controlling the vacuum device to pump the air pressure in the water collection tank to the corresponding air pressure according to the air pressure determined by the target temperature, so that the water in the water collection tank can evaporate and cool down under the action of the air pressure and the vacuum device, and send out cold air after heat exchange with the heat exchange device. By using water as the refrigerant in this technical solution, the discharged water vapor has a relatively high temperature and is harmless to the environment. Moreover, water as a refrigerant is easily obtained, does not require complex synthesis steps, has a low cost, and is also beneficial to reducing the equipment cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0056] Figure 1 It is a schematic diagram of an embodiment of the control method of the refrigeration equipment of the present invention;

[0057] Figure 2 It is a schematic flowchart of an embodiment of the control method of the refrigeration equipment provided by the present invention;

[0058] Figure 3 It is a schematic diagram of the hardware operating environment of the control device of the refrigeration equipment of the present invention;

[0059] Figure 4 It is a schematic structural diagram of the first embodiment of a part of the structure of the refrigeration equipment provided by the present invention;

[0060] Figure 5 It is a schematic structural diagram of the second embodiment of a part of the structure of the refrigeration equipment provided by the present invention;

[0061] Figure 6 It is a schematic structural diagram of the third embodiment of a part of the structure of the refrigeration equipment provided by the present invention.

[0062] Explanation of the reference numerals in the drawings:

[0063]

[0064] The realization of the object, functional features and advantages of the present invention will be further described with reference to the embodiments and the drawings. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0065] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0066] In addition, in the present invention, descriptions such as "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments may be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0067] The present invention provides a control method for a refrigeration device.

[0068] When existing refrigeration devices use CFCs and HCFCs for refrigeration, they will emit chlorine-containing waste gas into the air and enter the atmosphere, causing the ozone in the atmosphere to react with chlorine atoms, and thus leading to the destruction of the ozone layer.

[0069] In this specification, the execution subject of the control method of the refrigeration device is the control device of the refrigeration device; the refrigeration device includes a water collection tank, a vacuum device, a heat exchange device, and a fan; the suction port of the vacuum device is communicated with the air in the water collection tank; the heat exchange device is connected to the water collection tank for heat exchange; the fan is arranged corresponding to the heat exchange device for sending air to the heat exchange device.

[0070] To solve the above problems, referring to Figures 1 to 2 In an embodiment of the present invention, the control method of the refrigeration device includes:

[0071] Step S100, obtain the ambient temperature and the target temperature, and determine the required air pressure of the water collection tank according to the ambient temperature and the target temperature;

[0072] Environmental parameter sensors such as a light sensor, a temperature sensor, or a humidity sensor may be provided in the refrigeration device to detect environmental parameters such as light, temperature, or humidity in the surrounding environment and output corresponding environmental parameter detection signals. The control device of the refrigeration device can determine the temperature of the current environment where the refrigeration device is located by obtaining various environmental parameter detection signals. Specifically, the ambient temperature may be the ambient temperature in the room where the refrigeration device is installed.

[0073] The target temperature can be the temperature set by the user through a remote controller or a control panel, or the user comfort temperature called in response to the user's trigger; wherein, the user comfort temperature can specifically be a preset temperature value obtained by analyzing the user's comfort level before the air conditioner leaves the factory, or a temperature value determined by continuously obtaining the user's set parameters during the use of the air conditioner. It should be noted that the user comfort temperature does not refer to the target temperature for air conditioner refrigeration, and can be understood as the maximum critical value of the air outlet temperature that the user can accept.

[0074] The control device of the refrigeration equipment can calculate the temperature difference between the ambient temperature and the target temperature, and can determine the air pressure value that the water collection tank needs to reach when the current ambient temperature reaches the target temperature according to the temperature difference - air pressure calculation formula or the corresponding relationship between the temperature difference and the air pressure. The temperature difference - air pressure calculation formula and the corresponding relationship can be obtained through pre-experiments and will not be elaborated here.

[0075] Step S200: Control the vacuum device according to the required air pressure of the water collection tank to pump the air pressure of the water collection tank to the required air pressure value of the water collection tank;

[0076] The control device of the refrigeration equipment can adjust the working parameters of the vacuum device according to the determined air pressure value, so that the vacuum device can operate with the adjusted working parameters and extract the air in the water collection tank at the corresponding extraction speed, so that the air pressure value in the water collection tank can be reduced to the determined air pressure and maintained. When the air pressure in the water collection tank decreases, the evaporation temperature of the water stored in the water collection tank will decrease. When the evaporation temperature decreases to less than the current temperature of the water, the water will evaporate, and the evaporated water vapor will carry heat and be extracted by the vacuum device along with the air, so that the temperature of the remaining water in the water collection tank can be correspondingly reduced. The heat exchange device can be set to be connected to the cooled water; or set to be in contact with the cooled water; or set to be in contact with the cooled water through a heat conducting member, so as to realize heat exchange with the cooled water, and further reduce its own temperature. The technical solution of the present invention provides a corresponding relationship between the water evaporation temperature and the pressure in the water collection tank for reference, as shown in Table 1 specifically:

[0077] Table 1:

[0078]

[0079] It should be noted that in Table 1, "Temperature / °C" represents the evaporation temperature of water, and "Pressure / Pa" represents the air pressure required to be achieved in the water collection tank. Here, "Temperature / °C is 1 and Pressure / Pa is 657.09" in Table 1 is used for explanation. "Temperature / °C is 1 and Pressure / Pa is 657.09" means that when the pressure in the water collection tank is 657.09 Pa, the evaporation temperature of water vapor is 1 °C, which can cause the water with the current water temperature greater than or equal to 1 °C to evaporate. In this way, according to the corresponding relationship between temperature and pressure recorded in Table 1, the evaporation cooling of water at different temperatures can be achieved.

[0080] Step S300: Control the fan to send the inhaled air to the heat exchange device;

[0081] The control device of the refrigeration equipment can adjust the working parameters of the fan so that the fan can rotate at a preset speed and inhale gas to send to the heat exchange device, thereby driving the air flow around the heat exchange device, and further realizing the air supply function of the refrigeration equipment. It should be noted that after the temperature of the heat exchange device decreases, it will conduct heat exchange with the surrounding air, thereby reducing the temperature of the surrounding air. Therefore, the air sent by the fan at this time is cold air.

[0082] In this way, the control method of the refrigeration equipment of the present invention obtains the ambient temperature and the target temperature, and according to the air pressure magnitude determined by the target temperature, controls the vacuum device to pump the air pressure in the water collection tank to the corresponding air pressure, so that the water in the water collection tank can evaporate and cool down under the action of the air pressure and the vacuum device, and after heat exchange with the heat exchange device, cold air is sent out, thereby realizing the refrigeration function of the refrigeration equipment. By using water as the refrigerant in this technical solution, the discharged water vapor has a higher temperature and is harmless to the environment. Moreover, water is convenient to obtain as a refrigerant, does not require complex synthesis steps, has a low cost, and is also beneficial to reducing the equipment cost.

[0083] In the prior art, there are also technical solutions that use natural refrigerants such as hydrocarbons, ammonia, and carbon dioxide. Although natural refrigerants are taken from nature and are also harmless to the natural environment, natural refrigerants have application limitations. For example, hydrocarbons are flammable and are currently applied to household small refrigeration devices and some industrial refrigeration devices, and cannot be applied to high-temperature occasions; ammonia will pose a threat to human life safety after leakage, so it cannot be applied to household air conditioners and central air-conditioning refrigeration devices; although carbon dioxide has no flammability and toxicity problems, the pressure required for circulation is relatively high, the requirements for components are relatively high, which is not conducive to reducing the cost of refrigeration equipment and the miniaturization and light-weight design of the equipment, and the coefficient of performance of the cycle, that is, the COP value, is also relatively low. This technical solution overcomes the above industry pain points, can be widely applied to various refrigeration equipment, and does not require components that provide high circulation pressure. The equipment cost and its volume can be reduced compared with the prior art, which is conducive to large-scale production and application.

[0084] Reference Figures 1 to 2 , in an embodiment of the present invention, after the step of step S300, the control method of the refrigeration device further includes:

[0085] Step S400: Obtain the air pressure in the water collecting tank and determine whether the air pressure in the water collecting tank matches the required air pressure of the water collecting tank;

[0086] A pressure sensor can be provided corresponding to the air part in the water collecting tank to detect the air pressure of the air part. The control device of the refrigeration device can obtain the current air pressure in the water collecting tank according to the air pressure sensing signal output by the pressure sensor, that is, the magnitude of the current air pressure. The control device of the refrigeration device can compare the magnitude of the current air pressure in the water collecting tank with the magnitude of the air pressure determined in step S100 to determine whether they match according to the comparison result.

[0087] If it is determined that the air pressure in the water collecting tank matches the required air pressure of the water collecting tank;

[0088] Execute step S410: Start timing as the first duration, and adjust or maintain the air pressure extraction speed of the vacuum device and / or the rotation speed of the fan according to the first duration, the ambient temperature, and the target temperature;

[0089] When the comparison result is equal, the control device of the refrigeration device can determine that the current air pressure in the water collecting tank matches its required air pressure. In other words, at this time, the refrigeration working condition of the refrigeration device is in a stable state. As the operation time of the refrigeration device increases, the refrigeration working condition of the refrigeration device may change. For example, the extraction speed of the vacuum device and the rotation speed of the fan may increase or decrease. Therefore, in this technical solution, when the control device of the refrigeration device determines that the current air pressure in the water collecting tank matches its required air pressure, it can start timing, and when timing to different time intervals, it can determine whether the air pressure in the water collecting tank at this time matches its required air pressure and whether the fan rotation speed at this time matches the preset rotation speed according to the ambient temperature and the target temperature corresponding to the time interval, and can adjust or not adjust the air pressure extraction speed of the vacuum device and / or the rotation speed of the fan according to the determination result. For example, when the control device of the refrigeration device determines that the air pressure in the water collecting tank is too high or too low, it can correspondingly increase or decrease its air pressure extraction speed, and when it determines that the fan rotation speed is too high or too low, it can correspondingly decrease or increase its rotation speed so that the adjusted air pressure extraction speed and rotation speed can meet the needs of the refrigeration working condition being in a stable state.

[0090] If it is determined that the air pressure in the water collecting tank does not match the required air pressure of the water collecting tank;

[0091] Execute step S420: Adjust the air pressure extraction speed of the vacuum device until the air pressure in the water collecting tank matches the required air pressure of the water collecting tank.

[0092] When the comparison result is not equal, that is, greater than or less than, the control device of the refrigeration equipment can determine that the current air pressure of the water collecting tank does not match the required air pressure. In other words, at this time, the refrigeration condition of the refrigeration equipment is still in an unstable state. When the comparison result is greater than, the control device of the refrigeration equipment can determine that the current air pressure of the water collecting tank is too high, and can correspondingly increase the air pressure extraction speed; when the comparison result is less than, it can determine that the current air pressure of the water collecting tank is too low, and can correspondingly reduce the air pressure extraction speed.

[0093] In this way, the refrigeration condition of the refrigeration equipment can be in a stable state for a long time, which is beneficial to ensuring the long-term operation of the refrigeration equipment.

[0094] Refer to Figures 1 to 2 , in an embodiment of the present invention, in step S410, the air pressure extraction speed of the vacuum device and / or the rotation speed of the fan are adjusted according to the first duration, the ambient temperature, and the target temperature. Specifically:

[0095] Determine the temperature difference between the ambient temperature and the target temperature as the first temperature difference, and determine the temperature range in which the first temperature difference is located;

[0096] When the first temperature difference is within the first temperature range, keep the air pressure extraction speed of the vacuum device and / or the rotation speed of the fan unchanged;

[0097] When the first temperature difference is within the second temperature range and the first duration is less than the preset duration, increase the air pressure extraction speed of the vacuum device, or increase the rotation speed of the fan;

[0098] When the first temperature difference is within the third temperature range and the first duration is not less than the preset duration, increase the air pressure extraction speed of the vacuum device and the rotation speed of the fan.

[0099] Wherein, the highest temperature value in the first temperature range is not greater than the lowest temperature value in the second temperature range, and the highest temperature value in the second temperature range is not greater than the lowest temperature value in the third temperature range.

[0100] In practical applications, the instability of the refrigeration condition is usually due to component aging or reduced working efficiency caused by long-term operation of components. Therefore, in most cases, the ambient temperature is greater than the target temperature, that is, the air pressure extraction speed or the fan rotation speed is insufficient.

[0101] In this embodiment, the operating time after the refrigeration condition is stabilized is divided into two time intervals, and the temperature range corresponding to the first temperature difference is divided into three temperature intervals. The two time intervals are respectively: the time interval from when the refrigeration condition is stabilized to the preset duration, and the time interval after the preset duration. The preset duration can be the average duration that the refrigeration condition can operate stably measured by multiple pre-experiments. The three temperature intervals are sequentially divided in the direction of increasing temperature to ensure that the highest temperature value in the first temperature interval is less than or equal to the lowest temperature value in the second temperature interval, and the highest temperature value in the second temperature interval is less than or equal to the lowest temperature value in the third temperature interval. The lowest temperature in the first temperature interval and the highest temperature in the third temperature interval can be determined by multiple pre-experiments and are not limited here.

[0102] Thus, when the first temperature difference is in the first temperature interval corresponding to a relatively low temperature, the control device of the refrigeration equipment can determine that the temperature difference fluctuation between the ambient temperature and the target temperature is small, that is, the current refrigeration condition is still stable, and maintain the current air pressure extraction speed and fan speed to avoid excessive adjustment times and increase the energy consumption of the refrigeration equipment. When the first temperature difference is in the second temperature interval corresponding to a normal temperature and the operating duration is less than the preset duration, the control device of the refrigeration equipment can determine that the temperature difference fluctuation between the two is slightly larger, but the operating duration has not reached the average duration of stable operation. It is sufficient to increase either the air pressure extraction speed or the fan speed to avoid increasing the energy consumption of the refrigeration equipment by adjusting the vacuum device and the fan at the same time. When the first temperature difference is in the third temperature interval corresponding to a relatively high temperature and the operating duration is greater than the preset duration, the control device of the refrigeration equipment can determine that the temperature difference fluctuation between the two is large and the operating duration exceeds the average duration of stable operation. At this time, increase both the air pressure extraction speed or the fan speed at the same time, so that the first temperature difference can be reduced in a short time to shorten the waiting time for the user to cool down, which is beneficial to improving the user experience. In Figure 2 In the shown embodiment, Δt is the first temperature difference; S is the first duration; S1 is the preset duration; Δt ≤ Ts1 indicates that the first temperature difference is in the first temperature interval; Ts1 ≤ Δt ≤ Ts2, and S < S1 indicates that the first temperature difference is in the second temperature interval and the first duration is less than the preset duration; Δt ≥ Ts2, and S ≥ S1: the first temperature difference is in the third temperature interval and the first duration is not less than the preset duration.

[0103] Of course, those skilled in the art can also, without creative efforts, choose to make the ambient temperature less than the target temperature, and replace the increase in the solution of the present application with a decrease to save the energy consumption of the equipment and improve the user experience, which will not be elaborated here.

[0104] Further, the first temperature interval is not less than 0°C and not greater than 1°C;

[0105] And / or, the second temperature range is not less than 1°C and not greater than 3.5°C;

[0106] And / or, the second temperature range is greater than 3.5°C.

[0107] In practical applications, the human body does not perceive the temperature change within 1°C significantly. Therefore, in this technical solution, the temperature amplitude corresponding to the first temperature range is set to 1°C to save the energy consumption of the device on the basis that the user cannot feel the cold air temperature change. The human body can perceive the temperature change between greater than or equal to 1°C and less than or equal to 3.5°C more obviously. Therefore, in this technical solution, the temperature amplitude corresponding to the second temperature range can be set to be greater than or equal to 1°C and less than or equal to 3.5°C, so that the current temperature can be gradually reduced to the target temperature on the basis of saving the energy consumption of the device. In addition, the human body can perceive the temperature change above 3.5°C very obviously. Therefore, in this technical solution, the third temperature range is set to be greater than 3.5°C, so that when the user can obviously feel the environmental temperature rising, the environmental temperature can be quickly restored to the target temperature. With such a setting, even if the components of the refrigeration device age, it can still maintain a good refrigeration effect, greatly extending the service life of the refrigeration device.

[0108] Furthermore, the preset duration is selected from the range of not less than 25 min and not greater than 60 min.

[0109] A large number of experiments show that for refrigeration devices such as air conditioners, the time period between 25 minutes and 60 minutes after their refrigeration working conditions become stable is the time period when the refrigeration working conditions are likely to change from stable to unstable. Therefore, the preset duration of this application can be selected from the range of greater than or equal to 25 minutes and less than or equal to 60 minutes, and the specific selection can be determined according to the types and manufacturers of different refrigeration devices, which is not limited here. In this way, this technical solution can be applied to refrigeration devices of different types and manufacturers, which is beneficial to improving the universality of the application.

[0110] Referring to Figures 1 to 2 , in an embodiment of the present invention, the refrigeration device further includes a water supply device, and the water injection port of the water supply device is communicated with the water collection tank for supplying water to the water collection tank;

[0111] The control method of the refrigeration device further includes:

[0112] Step S500, obtaining the water level in the water collection tank;

[0113] If it is determined that the water level in the water collection tank matches the preset water level, execute step S100;

[0114] A water level sensor may be provided in the water collecting tank to detect the water level in the water collecting tank. The control device of the refrigeration equipment can obtain the height of the current water level in the water collecting tank according to the water level sensing signal output by the water level sensor, and determine whether the current water level matches the preset water level. The control device of the refrigeration equipment can obtain the water level in the water collecting tank when the refrigeration equipment is powered on and started and during refrigeration, that is, the initial water level and the real-time water level, and can judge whether the initial water level and the real-time water level reach the preset water level. If so, it can be determined that they match the preset water level. When it is determined that the initial water level matches the preset water level, the control device of the refrigeration equipment can start to execute step S100 to perform the refrigeration function; when it is determined that the real-time water level matches the preset water level, the control device of the refrigeration equipment can continue to execute the current working step to maintain the refrigeration function.

[0115] If it is determined that the water level in the water collecting tank does not match the preset water level, for example, when the water level in the water collecting tank is lower than the preset water level, step S510 is executed to control the water supply device to supply water to the water collecting tank until the water level in the water collecting tank matches the preset water level.

[0116] If the initial water level and the real-time water level do not reach the preset water level, it can be determined that they do not match the preset water level. When it is determined that either the initial water level or the real-time water level does not match the preset water level, the control device of the refrigeration equipment can control the water supply device to inject the water stored by itself or connected to the water collecting tank, so that the water level of the water collecting tank rises to the preset water level. Among them, the preset water level can be determined according to the evaporation area and is not limited here. With such a setting, the initial water level and the real-time water level can always be at the preset water level, thus solving the problem that the refrigeration effect decreases due to insufficient initial water level and real-time water level, which is beneficial to improving the stability of the refrigeration effect.

[0117] When the water level in the water collecting tank is higher than the set water level, step S520 is executed to control the water supply device to stop supplying water to the water collecting tank, and the set water level is higher than the preset water level.

[0118] The technical solution of the present invention sets the target water level for stopping water supply to a set water surface higher than the preset water level, so that the water level in the water collecting tank can start to evaporate and drop from the set water level after each water supply ends, rather than starting to drop from the preset water level. In this way, the number of water supply times during the refrigeration process can be effectively reduced, and the water supply device can be avoided from working in a hiccup state (that is, repeatedly supplying water at short intervals), which is beneficial to improving the service life of the water supply device and the refrigeration effect of the refrigeration equipment. In addition, the preset water level can be set to be lower than the water level corresponding to the maximum evaporation area, and the set water level can be set to be higher than the water level corresponding to the maximum evaporation area, so that the real-time water level can be near the water level corresponding to the maximum evaporation area as it evaporates and drops, so as to improve the stability of the refrigeration effect.

[0119] It should be noted that steps S500, S510, and S520 can be executed throughout the process after the refrigeration device is started and when the refrigeration function is being executed, that is, they can be in a state of being executed simultaneously with any step of the control method of the refrigeration device of the present invention, so as to supply water to the water collecting tank in a timely manner to ensure the refrigeration effect.

[0120] Furthermore, the control method of the refrigeration device further includes:

[0121] Step S521: Obtain the water level change speed in the water collecting tank;

[0122] Step S522: Control the water supply speed of the water supply device to the water collecting tank according to the water level change speed.

[0123] Steps S521 and S522 can occur during the process of the water supply device supplying water to the water collecting tank, that is, they occur in step S520. Since the change speed of the water level during water supply is affected by the shape of the water collecting tank and the heat exchange device. For example, in Figure 4 the illustrated embodiment, the heat exchange device includes a first heat exchanger communicated with the water collecting tank. The inner hole shape of the first heat exchanger can be a nearly circular shape such as a shape where the width first increases and then decreases as the height increases. The plane where the first heat exchanger is located is set at a preset distance from the bottom surface of the water collecting tank. In this way, when the water level rises with the water supply and enters the inner diameter of the first heat exchanger, the rising speed of the water level will significantly decrease. If the inner diameter is large, it will greatly affect the time for the water level to recover to the water level corresponding to the maximum evaporation area. In addition, when the water level exceeds the water level corresponding to the maximum evaporation area, although the rising speed of the water level will significantly increase, in fact, the evaporation area is decreasing, resulting in a reduction in the refrigeration effect.

[0124] To address this problem, the technical solution of the present application obtains the change speed of the water level. The change speed of the water level can be the rising speed of the water level per unit time, and controls the water supply speed of the water supply device according to the change speed of the water level. Specifically: when the change speed of the water level is normal, maintain the current water supply speed; when the change speed of the water level decreases, increase the current water supply speed to make the change speed of the water level rise, so as to reduce the time for recovering to the water level corresponding to the maximum evaporation area; when the change speed of the water level rises, the current water supply speed can be reduced or the water supply can be stopped to avoid a decrease in the refrigeration effect caused by the water level far exceeding the water level corresponding to the maximum evaporation area.

[0125] Refer to Figures 1 to 2, in an embodiment of the present invention, the heat exchange device includes a first heat exchanger, which is communicated with the water collection tank and is used to access the water in the water collection tank; the suction port of the vacuum device is communicated with the air in the first heat exchanger; the water collection tank has a first interface and a second interface; the first heat exchanger has a water inlet and a water outlet; the refrigeration device further includes: a first pump body, the suction port of the first pump body is communicated with the first interface of the water collection tank, and the drainage port of the first pump body is communicated with the water inlet of the first heat exchanger; and / or, the refrigeration device further includes: a second pump body, the suction port of the second pump body is communicated with the water outlet of the first heat exchanger, and the drainage port of the second pump body is communicated with the second interface of the water collection tank. The control method of the refrigeration device further includes:

[0126] Step S700, obtain the operation duration of the vacuum device after the refrigeration device reaches the preset condition, and determine whether the operation duration of the vacuum device reaches the preset operation duration;

[0127] The preset condition can be adjusting the air pressure extraction speed of the vacuum device to make the air pressure in the water collection tank match the required air pressure of the water collection tank. That is, step S700 can occur after step S420 and can be carried out simultaneously with step S410.

[0128] If it is determined that the operation duration of the vacuum device reaches the preset operation duration, execute step S710, determine the second temperature difference between the ambient temperature and the target temperature, and adjust at least one of the extraction speed of the vacuum device, the rotation speed of the fan, the rotation speed of the first pump body and / or the rotation speed of the second pump body according to the second temperature difference;

[0129] In practical applications, after functional components such as the vacuum pumping device, the fan, the first pump body, and the second pump body operate for a long time, there is a problem that the working efficiency decreases, resulting in unstable refrigeration effects, which can be specifically manifested as an increase in the cold air temperature or insufficient fan rotation speed. To solve the above problems, in this technical solution, after adjusting the air pressure of the water collection tank in step S420, the operation duration of the vacuum device is timed, and the timing result is used as the operation duration of the vacuum device. The control device of the refrigeration device can compare the obtained operation duration of the vacuum device with the preset operation duration to determine whether the operation duration of the vacuum device reaches the preset operation duration according to the comparison result; among them, the preset duration can be determined by the duration that each functional component can stably operate measured by multiple pre-experiments.

[0130] If it is determined that the operation duration of the vacuum device does not reach the preset operation duration, execute step S720 to maintain the current extraction speed of the vacuum device, the rotation speed of the fan, the rotation speed of the first pump body and / or the rotation speed of the second pump body.

[0131] When the comparison result is that the operation duration of the vacuum device is greater than or equal to the preset operation duration, the control device of the refrigeration equipment can determine that the preset operation duration is reached. That is, at this time, the probability of the working efficiency of each functional component decreasing is relatively low. Therefore, according to the degree of decrease in the current refrigeration effect, for example, according to the ambient temperature difference at this time, that is, the second temperature difference, the extraction speed of the vacuum device, the rotation speed of the machine, the rotation speed of the first pump body and / or the second pump body can be correspondingly increased, either one or a combination of multiple ones, so that the refrigeration effect of each functional component after adjustment can match the target temperature. With such a setting, even if component aging occurs in the refrigeration equipment, a good refrigeration effect can be maintained, greatly extending the service life of the refrigeration equipment.

[0132] If it is determined that the operation duration of the vacuum device has not reached the preset operation duration, return to execute step S100, evacuate the air pressure in the water collecting tank by the vacuum device at the preset extraction speed, so that the heat exchange device exchanges heat with the cooled water, and control the fan to send the inhaled air to the heat exchange device to send out cold air after heat exchange through the heat exchange device.

[0133] When the comparison result is that the operation duration of the vacuum device is less than the preset operation duration, the control device of the refrigeration equipment can determine that the preset operation duration has not been reached. That is, at this time, the probability of the working efficiency of each functional component decreasing is relatively low. It is only necessary to control the vacuum device to maintain the current extraction speed, control the fan to maintain the current rotation speed, and control the first pump body and / or the second pump body to maintain the current rotation speed.

[0134] Further, adjusting at least one of the extraction speed of the vacuum device, the rotation speed of the fan, the rotation speed of the first pump body and / or the second pump body according to the second temperature difference includes: determining the preset temperature range where the second temperature difference is located;

[0135] When the second temperature difference is in the fourth temperature range, keep the extraction speed of the vacuum device, the rotation speed of the fan, the rotation speed of the first pump body and / or the second pump body unchanged;

[0136] When the second temperature difference is in the fifth temperature range, increase any one or any two of the extraction speed of the vacuum device, the rotation speed of the fan, the rotation speed of the first pump body and / or the second pump body;

[0137] When the second temperature difference is in the sixth temperature range, increase the extraction speed of the vacuum device, the rotation speed of the fan, the rotation speed of the first pump body and / or the second pump body;

[0138] Wherein, the highest temperature value in the fourth temperature range is not greater than the lowest temperature value in the fifth temperature range; the highest temperature value in the fifth temperature range is not greater than the lowest temperature value in the sixth temperature range.

[0139] In this embodiment, the number of preset temperature ranges corresponding to the second temperature difference is 3, namely the fourth temperature range, the fifth temperature range, and the sixth temperature range. The 3 temperature ranges are sequentially divided in the direction of increasing temperature to ensure that the highest temperature value in the fourth temperature range is less than or equal to the lowest temperature value in the fifth temperature range, and the highest temperature value in the fifth temperature range is less than or equal to the lowest temperature value in the sixth temperature range. The lowest temperature in the fourth temperature range and the highest temperature in the sixth temperature range can be determined by multiple pre-experiments and are not limited herein. In another alternative embodiment, the fourth temperature range may be not less than 0°C and not greater than 1°C; the fifth temperature range is not less than 1°C and not greater than 3.5°C; the sixth temperature range is greater than 3.5°C. In Figure 2 In the shown embodiment, Δt is the second temperature difference; Δt ≤ Ts1: indicates that the second temperature difference is in the fourth temperature range; Ts1 < Δt < Ts2: indicates that the second temperature difference is in the fifth temperature range; Δt ≥ Ts2: the first temperature difference is in the fourth temperature range.

[0140] Referring to Figures 1 to 2 , in an embodiment of the present invention, after step S410, the control method of the refrigeration device further includes:

[0141] Step S600, determining whether the ambient temperature matches the target temperature;

[0142] If the ambient temperature matches the target temperature;

[0143] Execute step S610, maintaining the air pressure extraction speed of the vacuum device and / or the rotational speed of the fan unchanged until the water level in the water collection tank does not match the preset water level, and then controlling the water supply device to supply water to the water collection tank until the water level in the water collection tank matches the preset water level;

[0144] After adjusting the air pressure extraction speed and / or the fan rotational speed, the control device of the refrigeration device can obtain the adjusted ambient temperature and the target temperature before adjustment to determine whether the adjusted ambient temperature reaches the target temperature before adjustment, that is, whether the above process adjustment meets the requirements of the target temperature. If the adjusted ambient temperature is equal to the target temperature before adjustment or the temperature difference between the two is within the first temperature range, it can be determined that the ambient temperature matches the target temperature. At this time, the control device of the refrigeration device maintains the current air pressure extraction speed and fan rotational speed, and controls the water supply device to replenish the water level drop caused by evaporation in the water collection tank in real time, without excessive adjustment actions, to save equipment energy consumption.

[0145] If the ambient temperature does not match the target temperature, execute step S400.

[0146] If the adjusted ambient temperature is not equal to the target temperature before adjustment or the temperature difference between the two is large, the control device of the cooling equipment can determine that the adjusted ambient temperature has not reached the target temperature before adjustment, that is, the adjustment effect of the above process is poor. At this time, the control device of the cooling equipment can obtain the air pressure of the water collecting tank again and determine whether the air pressure of the water collecting tank obtained again matches the required air pressure of the water collecting tank, so as to adjust again according to the above steps. By confirming the adjustment effect after each adjustment in this technical solution to form a closed-loop feedback, the stability of the refrigeration effect in the refrigeration process can be improved, which is beneficial to improving the user experience.

[0147] The present invention also provides a control device for a refrigeration equipment.

[0148] Referring to Figure 3 , in an embodiment of the present invention, the refrigeration equipment includes a water collecting tank, a vacuum device, a heat exchange device, and a blower; the suction port of the vacuum device is communicated with the air in the water collecting tank; the heat exchange device is connected to the water collecting tank for heat exchange; the blower is arranged corresponding to the heat exchange device for sending air to the heat exchange device. The control device of the refrigeration equipment includes:

[0149] A memory 101;

[0150] A processor 102; and

[0151] A control program for the refrigeration equipment stored on the memory 101 and executable on the processor. When the processor 102 executes the control program for the refrigeration equipment, the control method for the refrigeration equipment as described above is implemented.

[0152] In this embodiment, the memory 101 can be a high-speed RAM memory or a stable memory (non-volatile memory), such as a disk memory. Optionally, the memory 101 can also be a storage device independent of the foregoing control device; the processor 102 can be a CPU. The memory 101 and the processor 102 are connected by a communication bus 103, and this communication bus 103 can be a UART bus or an I2C bus. It can be understood that a program related to driving other functional units or components can also be set in the control device of the refrigeration equipment to drive other functional units or components in the refrigeration equipment to work. In another optional embodiment, the control device of the refrigeration equipment integrates a detection module, a calculation module, and a control module; wherein, the detection module can be used to detect the ambient temperature, the calculation module is used to calculate the air pressure extraction speed and the wind wheel speed, and the control module is used to control other functional units or components to work.

[0153] The present invention also provides a control device for a refrigeration equipment.

[0154] Referring to Figure 3, in an embodiment of the present invention, the refrigeration device includes a water collecting tank, a vacuum device, a first heat exchanger, a fan, and a water supply device; the suction port of the vacuum device is communicated with the air in the water collecting tank; the heat exchange device is thermally connected to the water collecting tank; the fan is arranged corresponding to the heat exchange device for sending air to the heat exchange device, and the refrigeration device includes a water supply device, the water injection port of which is communicated with the water collecting tank for supplying water to the water collecting tank. The control device of the refrigeration device includes:

[0155] A memory 101;

[0156] A processor 102; and

[0157] A control program of the refrigeration device stored on the memory 101 and operable on the processor. When the processor 102 executes the control program of the refrigeration device, the control method of the refrigeration device as described above is implemented.

[0158] In this embodiment, the memory 101 can be a high-speed RAM memory or a stable memory (non-volatile memory), such as a disk memory. Optionally, the memory 101 can also be a storage device independent of the foregoing control device; the processor 102 can be a CPU. The memory 101 and the processor 102 are connected by a communication bus 103, and the communication bus 103 can be a UART bus or an I2C bus. It can be understood that a program related to driving other functional units or components can also be provided in the control device of the refrigeration device to drive other functional units or components in the refrigeration device to work. In another alternative embodiment, the control device of the refrigeration device integrates a detection module, a calculation module, and a control module; wherein, the detection module can be used to detect the ambient temperature, the calculation module is used to calculate the air pressure extraction speed and the wind turbine speed, and the control module is used to control other functional units or components to work.

[0159] The present invention also proposes a control device of a refrigeration device.

[0160] Refer to Figure 3, in an embodiment of the present invention, the refrigeration device includes a water collecting tank, a vacuum device, a first heat exchanger, a blower, and a water supply device; the suction port of the vacuum device is in communication with the air in the water collecting tank; the heat exchange device is thermally exchange-connected to the water collecting tank; the blower is arranged corresponding to the heat exchange device for sending air to the heat exchange device; the refrigeration device includes a water supply device, and the water injection port of the water supply device is in communication with the water collecting tank for supplying water to the water collecting tank; the heat exchange device includes a first heat exchanger, and the first heat exchanger is in communication with the water collecting tank for accessing the water in the water collecting tank; the suction port of the vacuum device is in communication with the air in the first heat exchanger; the water collecting tank has a first interface and a second interface; the first heat exchanger has a water inlet and a water outlet; the refrigeration device further includes: a first pump body, the suction port of the first pump body is in communication with the first interface of the water collecting tank, and the drainage port of the first pump body is in communication with the water inlet of the first heat exchanger; and / or, the refrigeration device further includes: a second pump body, the suction port of the second pump body is in communication with the water outlet of the first heat exchanger, and the drainage port of the second pump body is in communication with the second interface of the water collecting tank, and the control device of the refrigeration device includes:

[0161] a memory 101;

[0162] a processor 102; and

[0163] a control program of the refrigeration device stored on the memory 101 and executable on the processor, and when the processor 102 executes the control program of the refrigeration device, the control method of the refrigeration device as above is implemented.

[0164] In this embodiment, the memory 101 can be a high-speed RAM memory or a stable memory (non-volatile memory), such as a disk memory. Optionally, the memory 101 can also be a storage device independent of the foregoing control device; the processor 102 can be a CPU. The memory 101 and the processor 102 are connected by a communication bus 103, and the communication bus 103 can be a UART bus or an I2C bus. It can be understood that a program related to driving other functional units or components can also be set in the control device of the refrigeration device to drive other functional units or components in the refrigeration device to work. In another alternative embodiment, the control device of the refrigeration device integrates a detection module, a calculation module, and a control module; wherein, the detection module can be used to detect the ambient temperature, the calculation module is used to calculate the air pressure extraction speed and the wind turbine speed, and the control module is used to control other functional units or components to work.

[0165] The present invention also provides a refrigeration device, which can be used as a functional component for refrigeration in refrigeration appliances such as air conditioners, or directly used as a refrigeration appliance such as an air conditioner.

[0166] Please refer to Figures 4 to 6 , the accompanying drawings show specific embodiments of the refrigeration device provided by the present invention. For the sake of easy understanding, in the following embodiments, the refrigeration device is taken as an air conditioner as an example for illustration. Among them, the air conditioner can be an integrated air conditioner or a split air conditioner. When the air conditioner is an integrated air conditioner, the integrated air conditioner can specifically be a mobile air conditioner or a window air conditioner, etc.; when the air conditioner is a split air conditioner, the split air conditioner can specifically be a wall-mounted air conditioner, a ceiling-mounted air conditioner or a floor-standing air conditioner, etc.

[0167] Refer to Figures 4 to 6 , in an embodiment of the present invention, the refrigeration device includes:

[0168] A water collection tank 200;

[0169] A vacuum device 300, the air extraction port 310 of the vacuum device 300 is in communication with the air in the water collection tank 200, and the vacuum device 300 is used to extract the gas in the water collection tank 200;

[0170] A heat exchange device 400, which is connected to the water collection tank 200 for heat exchange; and,

[0171] A fan 500, which is arranged corresponding to the heat exchange device 400 to send air to the heat exchange device 400;

[0172] The control device of the refrigeration device is electrically connected to the vacuum device 300 and the fan 500 respectively. Among them, the specific structure of the control device of this refrigeration device refers to the above embodiment. Since this refrigeration device adopts all the technical solutions of the above all embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, and will not be elaborated here one by one.

[0173] In the technical solution provided by the present invention, under the action of the vacuum device 300, the air pressure in the water collection tank 200 and / or the heat exchange device 400 decreases and the air flow rate increases, so that the water body in the water collection tank 200 and / or the heat exchange device 400 evaporates to absorb heat and cool the environment where the heat exchange device 400 is located; the fan 500 blows the cooling air flow generated on the periphery of the heat exchange device 400 into the air duct 110, thereby realizing the cooling and refrigeration of the air passing through the air duct 110; compared with chlorofluorocarbon refrigerants, the evaporation refrigeration of the water body is non-toxic and harmless to the environment and users, and is easy to obtain, and has a high energy efficiency ratio.

[0174] The refrigeration device may further include a housing, which can be set to the required shape, size, material, etc. according to actual needs. For example, when the air conditioner is a wall-mounted air conditioner, the housing can be generally arranged in a longitudinally elongated shape along the horizontal direction; or, when the air conditioner is a floor-standing air conditioner, the cross-sectional shape of the housing can be circular, oval, polygonal or other special shapes, etc., without limitation. The housing may form an air duct 110, and the air duct 110 is generally provided with at least one air inlet and at least one air outlet, so that air enters from the air inlet, flows through the air duct 110, and then is discharged from the air outlet. The air outlet is generally used to communicate with the indoor environment. Since the specific type of the air conditioner is not limited, in actual application, the air duct 110 can be a conventional heat exchange air duct 110, and the air inlet is used to communicate with the indoor environment to introduce indoor air into the heat exchange air duct 110; the air duct 110 can also be a fresh air duct 110, and the air inlet is used to communicate with the outdoor environment to introduce outdoor fresh air into the heat exchange air duct 110; of course, the air duct 110 can also be specifically a purification air duct 110 or an aromatherapy air duct 110, etc. A purification device such as an ultraviolet light generator is provided inside the purification air duct 110, and the required aromatherapy products are provided inside the aromatherapy air duct 110. It can be understood that any air duct 110 structure that needs to cool the flowing gas to a certain extent is within the protection scope of the air duct 110 in this design.

[0175] Functional components such as the water collection tank 200, the vacuum device 300, the heat exchange device 400, and the fan 500 can be directly arranged in the air duct 110. Or in an embodiment, the housing is further provided with a heat exchange chamber, the heat exchange chamber is communicated with the air duct 110, and at least part of the functional components such as the water collection tank 200, the vacuum device 300, the heat exchange device 400, and the fan 500 can be arranged in the heat exchange chamber, and at least the heat exchange device 400 and the fan 500 are arranged adjacent to the air duct 110.

[0176] The water collection tank 200 is used to store an appropriate amount of water body, and the water body can be tap water or other liquids suitable for evaporative refrigeration. In order to realize the timely replenishment of the water body stored in the water collection tank 200, in an embodiment, the refrigeration device further includes a water supply device 800, and the water supply device 800 has a water injection port 811, and the water injection port 811 is communicated with the water collection tank 200. The water supply device 800 can realize the water supply function under the manual operation of the user, or the water supply device 800 can be electrically connected to the above control device to be able to realize the required automatic water supply function under the control of the control device.

[0177] The water supply device 800 can be integrally arranged with the water collection tank 200. For example, a through hole is penetrated through the tank wall of the water collection tank 200, and the through hole directly forms the water injection port 811. Among them, when the through hole is arranged above the water collection tank 200, the external water source can directly enter the water collection tank 200 through the water injection port 811 under the action of gravity.

[0178] The water supply device 800 can also be separately arranged from the water collecting tank 200. For example, through holes are formed in the tank wall of the water collecting tank 200. The water supply device 800 includes a water supply pipeline 810. The water supply pipeline 810 passes through the through holes and is installed on the water collecting tank 200. Any pipe orifice of the water supply pipeline 810 constitutes a water injection port 811.

[0179] In view of the above, when adjusting the position of the water injection port 811, the external water source can automatically enter the water collecting tank 200 under the action of gravity; or as in this embodiment, the water supply device 800 further includes a fifth pump body 820. The fifth pump body 820 is arranged on the water supply pipeline 810 and is electrically connected to the control device. Specifically, the third water pump can, under the control of the control device, drive the water body in the water supply pipeline 810 to flow towards the water collecting tank 200, realizing the rapid water injection of the water collecting tank 200 in any installation orientation.

[0180] In addition, based on any of the above embodiments, the water supply device 800 further includes a stop valve 830. The stop valve 830 is arranged on the water supply pipeline 810 and is electrically connected to the control device. The stop valve 830 can be started under the control of the control device to intercept the water body passing through the water supply pipeline 810, avoiding the external water source from flowing into the water collecting tank 200 without reason or the water body in the water collecting tank 200 from flowing out; the stop valve 830 can also be closed under the control of the control device to allow the water body to pass freely.

[0181] In addition, based on any of the above embodiments, the water supply device 800 further includes a water storage tank 840. The water storage tank 840 is communicated with the water supply pipeline 810. The water storage tank 840 can be arranged inside the housing or outside the housing. The water storage tank 840 can store a certain amount of water for the standby of the water collecting tank 200, avoiding the refrigeration function of the refrigeration equipment from failing due to the water collecting tank 200 not obtaining the required amount of water.

[0182] Due to the random motion and mutual collision of molecules, at any moment, there are always some molecules with kinetic energy greater than the average kinetic energy. For these molecules with sufficient large kinetic energy, when their kinetic energy is greater than the work required to overcome the intermolecular attraction in the liquid when flying out, these molecules can break away from the liquid surface and fly outwards, evaporating into a gas state. During the evaporation process, the large kinetic energy molecules with kinetic energy greater than the average kinetic energy fly out of the liquid surface, and the average kinetic energy of the molecules remaining inside the liquid becomes smaller. Therefore, during the evaporation process, if no energy is supplied to the liquid from the outside, the temperature of the liquid will drop, and heat needs to be absorbed from the surrounding objects through heat transfer to cool the surrounding objects.

[0183] This design mainly utilizes the vacuum device 300 to achieve the endothermic evaporation of water. Specifically, the vacuum device 300 is used to extract the air in the water collection tank 200 and / or the heat exchange device 400 outwards, so as to be able to reduce the air pressure in the water collection tank 200 and / or the heat exchange device 400, and accelerate the air circulation in the water collection tank 200 and / or the heat exchange device 400.

[0184] Generally, a liquid area and an air area are formed in the water collection tank 200 and / or the heat exchange device 400. When the air pressure in the vacuum chamber decreases and the air flows, it can provide power for the above-mentioned large kinetic energy molecules, promote the large kinetic energy molecules to break away from the liquid surface of the liquid area and rise into the air area, achieving the purpose of rapid evaporation.

[0185] For the convenience of understanding, in the following embodiments, the chamber that can perform evaporation under the action of the vacuum device 300 is defined as the vacuum chamber. Since both the water collection tank 200 and / or the heat exchange device 400 can perform evaporation under the action of the vacuum device 300, the water collection tank 200 and / or the heat exchange device 400 can both define a vacuum chamber.

[0186] The specific form of the vacuum device 300 is not limited. For example, it is various types of suction pumps; the vacuum device 300 generally includes a device main body, and the device main body is electrically connected to the control device, so that under the control of the control device, the vacuum device 300 can perform function adjustments such as starting, closing, and adjusting the air extraction speed. Among them, by adjusting the air extraction speed of the vacuum device 300, the evaporation degree in the water collection tank 200 and / or the heat exchange device 400 connected to the vacuum device 300 can be adjusted, that is, the cooling capacity can be adjusted.

[0187] The device main body has an air extraction port 310, and the air extraction port 310 is communicated with the air collection tank and / or the heat exchange device 400; the device main body also has an exhaust port 320, and the exhaust port 320 is used to communicate with the external environment or other functional components of the air conditioner, so that under the control of the control device, the waste gas generated in the water collection tank 200 and / or the heat exchange device 400 connected to the vacuum device 300 is discharged through the exhaust port 320. The waste gas can be the hot air formed after the heat exchange effect or the excess gas.

[0188] In view of the above, the heat exchange device 400 is arranged in the air duct 110 or adjacent to the air duct 110 to perform heat exchange on the air passing through the air duct 110. There are various specific schemes for the heat exchange device 400 (for the convenience of understanding, in the following embodiments, the water body in the water collection tank 200 and / or the heat exchange device 400 that has not undergone the evaporation effect is defined as the normal temperature water, and the water body that has undergone the evaporation effect is defined as the chilled water):

[0189] Please refer to Figure 4, in the first embodiment of the refrigeration device, the heat exchange device 400 includes a first heat exchanger 410. The first heat exchanger 410 is communicated with the water collecting tank 200 to access the water in the water collecting tank 200 for heat exchange.

[0190] The air extraction port 310 of the vacuum device 300 is communicated with the air inside the first heat exchanger 410.

[0191] In this embodiment, the water collecting tank 200 provides a sufficient amount of normal temperature water for the first heat exchanger 410. The air extraction port 310 of the vacuum device 300 can be directly communicated with the air inside the first heat exchanger 410 or indirectly communicated with the air inside the first heat exchanger 410 through the water collecting tank 200, so that the inside of the first heat exchanger 410 forms a vacuum chamber. Evaporation directly occurs inside the first heat exchanger 410. During the evaporation process, the first heat exchanger 410 absorbs heat from the outside through its shell wall, causing the temperature in the area where the first heat exchanger 410 is located to decrease and generating cold air.

[0192] Further, in an embodiment of the present invention, the first heat exchanger (410) includes heat exchange tubes (401). The inner diameter of the heat exchange tubes (401) is D. When the refrigeration device is operating, the water level in the heat exchange tubes (401) is not lower than 0.25D and not higher than 0.75D.

[0193] The water collecting tank 200 also has a bottom surface; the plane where the first heat exchanger 410 is located is parallel to the bottom surface of the water collecting tank 200 and is at a first preset distance S1 from the bottom surface of the water collecting tank 200. The heat exchange tubes 401 are provided in the first heat exchanger 410, and the height of the inner hole of the heat exchange tubes 401 in the first preset direction is H. The first preset direction is the vertical direction of the plane where the first heat exchanger 410 is located.

[0194] The preset water level is S1 + S2, and S2 is selected from the range not less than 0.25H and not greater than 0.75H.

[0195] It can be understood that since the plane where the first heat exchanger 410 is located is parallel to the bottom surface of the water collecting tank 200, the height H of the inner hole of the heat exchange tube 401 is the height with reference to the plane where the first heat exchanger 410 is located. Therefore, when the preset water level is set to S1 + H, the amount of water supplied into the first heat exchanger 410 exactly fills the entire heat exchange tube 401 of the first heat exchanger 410. Only a liquid region is formed in the vacuum chamber defined in the first heat exchanger 410, and an air region cannot be formed. Even if the vacuum device 300 is communicated with the first heat exchanger 410, evaporation cannot occur in the first heat exchanger 410. When the preset water level is relatively large, the liquid region in the vacuum chamber of the heat exchanger will be expanded but the air region will be reduced, reducing the evaporation area in the vacuum chamber and lowering the evaporation efficiency. On the contrary, when the preset water level is relatively small, the air region in the vacuum chamber of the heat exchanger will be expanded but the liquid region will be reduced. Although there is sufficient evaporation area, there is not enough water body for evaporation, also reducing the evaporation efficiency. Therefore, the preset water level needs to be set within an appropriate range. Through design, the preset water level is set to S1 + S2, and S2 is selected from the range not less than 0.25H and not greater than 0.75H, which helps the first heat exchanger 410 to perform efficient evaporation and heat absorption, achieving a better heat exchange effect.

[0196] Further, in an embodiment of the present invention, when the refrigeration device is operating, the ratio of the volume of water to the volume of air in the water collecting tank (200) is not less than 1 and not greater than 2.5.

[0197] The water collecting tank 200 may further have a top surface;

[0198] In the water collecting tank 200, the volume between the plane of the preset water level and the top surface of the water collecting tank 200 is the first volume, and the volume between the plane of the preset water level and the bottom surface of the water collecting tank 200 is the second volume. The ratio of the second volume to the first volume is not less than 1 and not greater than 2.5.

[0199] It can be understood that the preset water level is equivalent to defining the effective water storage level in the water collecting tank 200. Since in the above second embodiment, the water collecting tank 200 constitutes a vacuum chamber, similarly to the above, when the preset water level is relatively large, the liquid region in the vacuum chamber will be expanded but the air region will be reduced, reducing the evaporation area in the vacuum chamber and lowering the evaporation efficiency. On the contrary, when the preset water level is relatively small, the air region in the vacuum chamber will be expanded but the liquid region will be reduced. Although there is sufficient evaporation area, there is not enough water body for evaporation, also reducing the evaporation efficiency. Therefore, through design, setting the ratio of the second volume to the first volume to be not less than 1 and not greater than 2.5 helps the water collecting tank 200 to perform efficient evaporation and heat absorption, so as to be able to provide sufficient chilled water for the second heat exchanger 420, achieving a better heat exchange effect.

[0200] Further, please refer toFigure 5 , in an embodiment of the present invention, the water collecting tank 200 has a first interface and a second interface; the second heat exchanger 420 has a water inlet and a water outlet;

[0201] The refrigeration device further includes:

[0202] A first pump body 710, the water suction port of the first pump body 710 is communicated with the first interface of the water collecting tank 200, and the water discharge port of the first pump body 710 is communicated with the water inlet of the second heat exchanger 420;

[0203] And / or, the refrigeration device further includes:

[0204] A second pump body 720, the water suction port of the second pump body 720 is communicated with the water outlet of the second heat exchanger 420, and the water discharge port of the second pump body 720 is communicated with the second interface of the water collecting tank 200.

[0205] It can be understood that the installation direction of the water collecting tank 200 is vertically or horizontally installed. When it is vertically installed, the cooling water therein can enter the second heat exchanger 420 under the action of gravity, but the circulation of the chilled water in the second heat exchanger 420 cannot be realized. Therefore, in this embodiment, the water inlet and the water outlet of the heat exchange tube 401 of the second heat exchanger 420 are respectively communicated with the first interface and the second interface of the water collecting tank 200. The first pump body 710 can drive the chilled water with a lower temperature to enter the second heat exchanger 420 from the water inlet of the heat exchange tube 401 through the first interface of the water collecting tank 200, and after heat exchange with the surrounding environment in the second heat exchanger 420, form chilled water with a higher temperature. The first pump body 710 can drive the chilled water with a higher temperature to return to the water collecting tank 200 from the water outlet of the heat exchange tube 401 and the second interface of the water collecting tank 200 to continue evaporation and heat absorption. In this way, the two installation methods of the water collecting tank 200 can be satisfied at the same time. The rotation speed of the first pump body 710 can correspondingly adjust the circulation flow rate of the chilled water between the water collecting tank 200 and the second heat exchanger 420. Since the function and working principle of the second pump body 720 can be the same as those of the first pump body 710, it will not be elaborated here. The second pump body 720 is arranged between the water outlet of the second heat exchanger 420 and the second interface of the water collecting tank 200.

[0206] Please refer to Figure 5 , in the second embodiment of the refrigeration device, the heat exchange device 400 includes a second heat exchanger 420, and the second heat exchanger 420 is communicated with the water collecting tank 200 to access the chilled water generated after evaporation refrigeration by the vacuum device 300 in the water collecting tank 200;

[0207] The air extraction port 310 of the vacuum device 300 is communicated with the air in the water collecting tank 200.

[0208] In this embodiment, the water collecting tank 200 stores a sufficient amount of normal temperature water. The air extraction port 310 of the vacuum device 300 is communicated with the water collecting tank 200, so that the water collecting tank 200 forms a vacuum chamber. Under the action of the vacuum device 300, the normal temperature water in the water collecting tank 200 is transformed into chilled water through evaporation; the water collecting tank 200 is communicated with the second heat exchanger 420, and the chilled water can flow through the second heat exchanger 420, so that the internal temperature of the second heat exchanger 420 is reduced, and heat needs to be absorbed from the outside through its shell wall, so that the temperature in the area where the second heat exchanger 420 is located is reduced, generating refrigerated air.

[0209] Please refer to Figure 6 , in the third embodiment of the refrigeration device, the heat exchange device 400 includes a third heat exchanger 430 disposed in the water collecting tank 200 and a fourth heat exchanger 440 disposed outside the water collecting tank 200. The two ends of the third heat exchanger 430 are respectively connected to the two ends of the fourth heat exchanger 440 in a one-to-one manner;

[0210] The blower 500 is disposed corresponding to the fourth heat exchanger 440.

[0211] In this embodiment, the two ends of the third heat exchanger 430 are respectively connected to the two ends of the fourth heat exchanger 440 in a one-to-one manner, and a closed annular flow path can be formed between the third heat exchanger 430 and the fourth heat exchanger 440. Then, a heat exchange medium can be injected into the third heat exchanger 430 and the fourth heat exchanger 440. The heat exchange medium can be selected from materials with relatively high thermal conductivity, but the specific scheme is not limited. For example, it can be a solid material, such as metal fiber, etc.; it can also be a gaseous material, such as air, etc.; it can also be a fluid material, such as various refrigeration solvents, etc.

[0212] The water collecting tank 200 stores a sufficient amount of normal temperature water. The air extraction port 310 of the vacuum device 300 is communicated with the water collecting tank 200, so that the water collecting tank 200 forms a vacuum chamber. Under the action of the vacuum device 300, the normal temperature water in the water collecting tank 200 is transformed into chilled water through evaporation. The third heat exchanger 430 is disposed in the water collecting tank 200. After exchanging heat with the chilled water in the water collecting tank 200, the cold quantity can be transferred to the fourth heat exchanger 440, so that the fourth heat exchanger 440 can absorb heat from the outside through its shell wall, reduce the temperature in the area where it is located, and generate refrigerated air.

[0213] Of course, the third heat exchanger 430 can also be arranged to be communicated with the water collecting tank 200, access the chilled water in the water collecting tank 200, and at the same time receive the cooling effect of the chilled water in the water collecting tank 200, which also helps to improve the heat exchange effect; the fourth heat exchanger 440 can also be arranged to be communicated with the surrounding environment. At this time, during the process of guiding the air flow by the blower 500, part of the air can enter the fourth heat exchanger 440, so that the air constitutes the above-mentioned heat exchange medium.

[0214] Similarly to the arrangement of the above-mentioned first pump body 710 and / or second pump body 720, the refrigeration device further includes a third pump body 730 and / or a fourth pump body 740. The arrangement of the third pump body 730 may refer to that of the first pump body 710, i.e., it is arranged between the water outlet of the third heat exchanger 430 and the water inlet of the fourth heat exchanger 440 to drive the heat exchange medium to circulate between the third heat exchanger 430 and the water inlet of the fourth heat exchanger 440. It can be understood that the third pump body 730 can drive the heat exchange medium with a relatively low temperature at the third heat exchanger 430 into the fourth heat exchanger 440. After the heat exchange medium exchanges heat with the surrounding environment in the fourth heat exchanger 440, a heat exchange medium with a relatively high temperature is formed. The third pump body 730 can drive the heat exchange medium with a relatively high temperature to return from the fourth heat exchanger 440 to the third heat exchanger 430, so that the heat exchange medium in the third heat exchanger 430 continues to be cooled in the water collecting tank 200. The rotation speed of the second pump body 720 can correspondingly adjust the circulation flow rate of the heat exchange medium between the third heat exchanger 430 and the fourth heat exchanger 440. The arrangement of the fourth pump body 740 may refer to that of the second pump body 720, i.e., it is arranged between the water inlet of the third heat exchanger 430 and the water outlet of the fourth heat exchanger 440, which will not be elaborated here.

[0215] It should be noted that in any of the above embodiments, the specific form of the heat exchange tube 401 is not limited. The heat exchange tube 401 can be set in any suitable shape, size, material, etc. For example, in the Figures 1 to 3 embodiment attached, the heat exchange tube 401 has two relatively arranged ports, and the heat exchange tube 401 includes a straight tube section connecting the two ports respectively, and a bent tube section located between the two straight tube sections and communicating with the two straight tube sections respectively. The bent tube section is formed by at least one bend.

[0216] In addition, according to actual needs, the above first to third embodiments can be combined. For example, the solution of the first embodiment can be combined with the solution of the second embodiment to further improve the refrigeration effect, which will not be elaborated one by one here.

[0217] The fan 500 is arranged corresponding to the heat exchange device 400. Based on the above, it can be known that the heat exchange device 400 can reduce the temperature in the area where it is located and generate cold air. The function of the fan 500 is to blow the cold air into the air duct 110 so that the cold air can cool the air in the air duct 110 in time. When the heat exchange device 400 is arranged outside the air duct 110, the fan 500 can be arranged on the side of the heat exchange device 400 facing away from the air inlet of the air duct 110 to blow the cold air into the air duct 110; the fan 500 can also be arranged on the side of the heat exchange device 400 close to the air inlet of the air duct 110 to suck the cold air into the air duct 110. The rotation speed of the fan 500 can correspondingly adjust the flow rate of the cold air entering the air duct 110 at the heat exchange device 400.

[0218] In the above embodiments, the refrigeration device further includes a water level sensor 600, which is disposed in the water collecting tank 200 and electrically connected to the control device. The water level sensor 600 is used to sense the water level in the water collecting tank 200.

[0219] The control device may also be electrically connected to the water supply device 800. Under the control of the control device, the water level sensor 600 senses the water level in the water collecting tank 200 in real time, and generates an induction signal when the water level is lower or higher than the preset water level. The induction signal is sent to the control device. For example, when it senses that the water level in the water collecting tank 200 is lower than the preset water level, the control device controls the water supply device 800 to start supplying water according to the received induction signal; when it senses that the water level in the water collecting tank 200 is higher than the preset water level, the control device controls the water supply device 800 to stop supplying water according to the received induction signal.

[0220] The above are only alternative embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention under the inventive concept of the present invention, or direct / indirect application in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A control method for a refrigeration device, characterized in that, The refrigeration device includes a water collecting tank, a vacuum device, a heat exchange device, and a blower; the suction port of the vacuum device is in communication with the air in the water collecting tank; the heat exchange device is connected to the water collecting tank for heat exchange; The blower is arranged corresponding to the heat exchange device for sending air to the heat exchange device, and the control method of the refrigeration device includes: Obtaining the ambient temperature and the target temperature, and determining the required air pressure of the water collecting tank according to the ambient temperature and the target temperature; Controlling the vacuum device to pump the air pressure of the water collecting tank to the required air pressure of the water collecting tank according to the required air pressure of the water collecting tank; and, Controlling the blower to send air to the heat exchange device; The control method of the refrigeration device further includes: Obtaining the air pressure of the water collecting tank, and determining whether the air pressure of the water collecting tank matches the required air pressure of the water collecting tank; If it is determined that the air pressure of the water collecting tank matches the required air pressure of the water collecting tank, starting to time as a first duration, and adjusting or maintaining the air pressure pumping speed of the vacuum device and / or the rotation speed of the blower according to the first duration, the ambient temperature, and the target temperature; If it is determined that the air pressure of the water collecting tank does not match the required air pressure of the water collecting tank, adjusting the air pressure pumping speed of the vacuum device until the air pressure of the water collecting tank matches the required air pressure of the water collecting tank.

2. The control method of the refrigeration device according to claim 1, characterized in that, The adjusting or maintaining the air pressure pumping speed of the vacuum device and / or the rotation speed of the blower according to the first duration, the ambient temperature, and the target temperature includes: Determining the temperature difference between the ambient temperature and the target temperature as a first temperature difference, and determining the temperature range where the first temperature difference is located; When the first temperature difference is in a first temperature range, maintaining the air pressure pumping speed of the vacuum device and / or the rotation speed of the blower unchanged; When the first temperature difference is in a second temperature range and the first duration is less than a preset duration, increasing the air pressure pumping speed of the vacuum device, or increasing the rotation speed of the blower; When the first temperature difference is in a third temperature range and the first duration is not less than the preset duration, increasing the air pressure pumping speed of the vacuum device and the rotation speed of the blower; Wherein, the highest temperature value in the first temperature range is not greater than the lowest temperature value in the second temperature range, and the highest temperature value in the second temperature range is not greater than the lowest temperature value in the third temperature range.

3. The control method of the refrigeration device according to claim 1, characterized in that, The refrigeration device includes a water supply device, and the water injection port of the water supply device is in communication with the water collecting tank for supplying water to the water collecting tank, The control method of the refrigeration device further includes: Obtaining the water level in the water collecting tank; When the water level in the water collecting tank is lower than the preset water level, controlling the water supply device to supply water to the water collecting tank until the water level in the water collecting tank matches the preset water level; When the water level in the water collecting tank is higher than the set water level, controlling the water supply device to stop supplying water to the water collecting tank, and the set water level is higher than the preset water level.

4. The control method of the refrigeration device according to claim 3, characterized in that, The control method of the refrigeration device further includes: Obtaining the water level change speed in the water collecting tank; Controlling the water supply speed of the water supply device to supply water to the water collecting tank according to the water level change speed.

5. The control method of the refrigeration device according to claim 3, characterized in that, The heat exchange device includes a first heat exchanger which is communicated with the water collecting tank and is used for accessing the water in the water collecting tank; the suction port of the vacuum device is communicated with the air in the first heat exchanger; the water collecting tank has a first interface and a second interface; The first heat exchanger has a water inlet and a water outlet; The refrigeration equipment further includes: a first pump body, the suction port of the first pump body is communicated with the first interface of the water collecting tank, and the drainage port of the first pump body is communicated with the water inlet of the first heat exchanger; and / or, the refrigeration equipment further includes: a second pump body, the suction port of the second pump body is communicated with the water outlet of the first heat exchanger, and the drainage port of the second pump body is communicated with the second interface of the water collecting tank. It is characterized in that the control method of the refrigeration equipment further includes: Obtaining the operation duration of the vacuum device after the refrigeration equipment reaches a preset condition, and determining whether the operation duration of the vacuum device reaches a preset operation duration; If it is determined that the operation duration of the vacuum device reaches the preset operation duration, determining a second temperature difference between the ambient temperature and the target temperature, and adjusting at least one of the extraction speed of the vacuum device, the rotation speed of the fan, the rotation speed of the first pump body and / or the rotation speed of the second pump body according to the second temperature difference; If it is determined that the operation duration of the vacuum device does not reach the preset operation duration, maintaining the extraction speed of the current vacuum device, the rotation speed of the fan, the rotation speed of the first pump body and / or the rotation speed of the second pump body.

6. The control method of the refrigeration equipment according to claim 5, characterized in that, The adjusting at least one of the extraction speed of the vacuum device, the rotation speed of the fan, the rotation speed of the first pump body and / or the rotation speed of the second pump body according to the second temperature difference includes: Determining a preset temperature range in which the second temperature difference is located; When the second temperature difference is in the fourth temperature range, maintaining the extraction speed of the vacuum device, the rotation speed of the fan, the rotation speed of the first pump body and / or the rotation speed of the second pump body unchanged; When the second temperature difference is in the fifth temperature range, increasing any one or any two of the extraction speed of the vacuum device, the rotation speed of the fan, the rotation speed of the first pump body and / or the rotation speed of the second pump body; When the second temperature difference is in the sixth temperature range, increasing the extraction speed of the vacuum device, the rotation speed of the fan, the rotation speed of the first pump body and / or the rotation speed of the second pump body; Wherein, the highest temperature value in the fourth temperature range is not greater than the lowest temperature value in the fifth temperature range; the highest temperature value in the fifth temperature range is not greater than the lowest temperature value in the sixth temperature range.

7. A control device for a refrigeration equipment, characterized in that, The refrigeration equipment includes a water collecting tank, a vacuum device, a heat exchange device and a fan; the suction port of the vacuum device is communicated with the air in the water collecting tank; the heat exchange device is heat exchange connected with the water collecting tank; the fan is arranged corresponding to the heat exchange device to send air to the heat exchange device. The control device of the refrigeration equipment includes: A memory; A processor; and, A control program for a refrigeration device stored in a memory and executable on a processor, and when the processor executes the control program of the refrigeration device, the control method of the refrigeration device according to any one of claims 1-2 is implemented.

8. A control device for a refrigeration equipment, characterized in that, The refrigeration device includes a water collecting tank, a vacuum device, a first heat exchanger, a fan, and a water supply device; the suction port of the vacuum device is communicated with the air in the water collecting tank; the heat exchange device is heat exchange connected to the water collecting tank; the fan is arranged corresponding to the heat exchange device for sending air to the heat exchange device, the refrigeration device includes a water supply device, and the water injection port of the water supply device is communicated with the water collecting tank for supplying water to the water collecting tank. The control device of the refrigeration device includes: A memory; A processor; and, A control program for a refrigeration device stored in a memory and executable on a processor, and when the processor executes the control program of the refrigeration device, the control method of the refrigeration device according to any one of claims 5 or 3-4 is implemented.

9. A control device for a refrigeration equipment, characterized in that, The refrigeration device includes a water collecting tank, a vacuum device, a first heat exchanger, a fan, and a water supply device; the suction port of the vacuum device is communicated with the air in the water collecting tank; the heat exchange device is heat exchange connected to the water collecting tank; the fan is arranged corresponding to the heat exchange device for sending air to the heat exchange device; the refrigeration device includes a water supply device, and the water injection port of the water supply device is communicated with the water collecting tank for supplying water to the water collecting tank; the heat exchange device includes a first heat exchanger, and the first heat exchanger is communicated with the water collecting tank for accessing the water in the water collecting tank; the suction port of the vacuum device is communicated with the air in the first heat exchanger; the water collecting tank has a first interface and a second interface; The first heat exchanger has a water inlet and a water outlet; The refrigeration device further includes: a first pump body, the suction port of the first pump body is communicated with the first interface of the water collecting tank, and the drainage port of the first pump body is communicated with the water inlet of the first heat exchanger; and / or, the refrigeration device further includes: a second pump body, the suction port of the second pump body is communicated with the water outlet of the first heat exchanger, and the drainage port of the second pump body is communicated with the second interface of the water collecting tank. The control device of the refrigeration device includes: A memory; A processor; and, A control program for a refrigeration device stored in a memory and executable on a processor, and when the processor executes the control program of the refrigeration device, the control method of the refrigeration device according to any one of claims 5-6 is implemented.

10. A refrigeration device, characterized in that, The refrigeration device includes: A water collecting tank; A vacuum device, the air extraction port of the vacuum device is communicated with the air in the water collecting tank; A heat exchange device, heat exchange connected to the water collecting tank; A fan, arranged corresponding to the heat exchange device for sending air to the heat exchange device; and, The control device of the refrigeration device according to any one of claims 7 or 8 or 9, and the control device of the refrigeration device is electrically connected to the vacuum device and the fan respectively.

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