Refrigerating device, control method thereof and storage medium

Abstract

The invention relates to a refrigeration device, a control method thereof and a storage medium. The refrigerating device comprises a compressor, a first condenser, a switching valve, a dew removing pipe and an evaporator. The first condenser comprises a condensation inlet and a condensation outlet; the high-pressure end of the compressor is connected with the condensation inlet, and the low-pressure end is connected with the evaporator; the switching valve comprises an inlet, a first outlet and a second outlet; the condensation outlet is connected with the inlet; the first outlet is connected with the evaporator; one end of the dew removal pipe is connected with the second outlet, and the other end is connected with the evaporator; the refrigerating device further comprises a controller and a sensor which are electrically connected, wherein the sensor is used for sensing external environment parameters. The controller controls the switching valve to be switched between a first state and a second state based on environmental parameters, and when the switching valve is in the first state, the switching valve communicates with the first outlet and the evaporator; and in the second state, the switching valve communicates with the second outlet, the dew removal pipe and the evaporator.

Description

Technical Field

[0001] This application relates to the field of refrigeration technology, and in particular to a refrigeration device, its control method, and a storage medium. Background Technology

[0002] When the air humidity is high, moisture in the air in refrigeration units such as refrigerators and freezers will condense on the door edges, causing water droplets to appear. Designers have incorporated decondensation pipes into the door edges of these units. These pipes are connected to the refrigerant circuit. During the refrigeration process, high-pressure gaseous refrigerant flows through the decondensation pipes, exchanging heat with the outside air and generating heat. This heat dissipates the water droplets from the door edges, thus achieving the decondensation function.

[0003] However, refrigerant loses heat at the condenser pipe as it flows through it. When there is no need for condensation, this heat loss at the condenser pipe will increase the energy consumption of the refrigeration unit to some extent. Summary of the Invention

[0004] This application provides a refrigeration device and its control method, as well as a storage medium, to address some or all of the shortcomings in the related technologies.

[0005] This application provides a refrigeration apparatus, including a compressor, a first condenser, a switching valve, a decondensation pipe, and an evaporator. The first condenser includes a condensation inlet and a condensation outlet. The high-pressure end of the compressor is connected to the condensation inlet, and the low-pressure end is connected to the evaporator.

[0006] The switching valve includes an inlet, a first outlet, and a second outlet. The condensate outlet is connected to the inlet. The first outlet is connected to the evaporator. One end of the decondensation pipe is connected to the second outlet, and the other end is connected to the evaporator.

[0007] The refrigeration device also includes an electrically connected controller and sensors for sensing external environmental parameters.

[0008] The controller controls the switching valve to switch between a first state and a second state based on the environmental parameters.

[0009] When in the first state, the switching valve connects the first outlet and the evaporator.

[0010] When in the second state, the switching valve connects the second outlet, the decondenser pipe, and the evaporator.

[0011] Furthermore, the refrigeration device also includes a second condenser. One end of the second condenser is connected to the first outlet, and the other end is connected to the evaporator.

[0012] Furthermore, the refrigeration device includes a side enclosure, a rear wall, and a storage space enclosed by the side enclosure and the rear wall. The second condenser is disposed on the side enclosure and / or the rear wall.

[0013] Furthermore, the refrigeration device also includes a first pressure-holding valve. One end of the first pressure-holding valve is connected to the first outlet, and the other end is connected to the evaporator. And / or,

[0014] The refrigeration unit also includes a second pressure-holding valve. One end of the second pressure-holding valve is connected to the defrosting pipe, and the other end is connected to the evaporator.

[0015] Furthermore, the refrigeration device also includes a first dryer filter. One end of the first dryer filter is connected to the first outlet, and the other end is connected to the evaporator. And / or,

[0016] The refrigeration unit also includes a second dryer filter. One end of the second dryer filter is connected to the decondensation pipe, and the other end is connected to the evaporator.

[0017] Furthermore, the refrigeration device also includes a first capillary tube. One end of the first capillary tube is connected to the first outlet, and the other end is connected to the evaporator. And / or,

[0018] The refrigeration device further includes a second capillary tube. One end of the second capillary tube is connected to the defrosting tube, and the other end is connected to the evaporator.

[0019] Furthermore, the refrigeration device includes a first capillary tube and a second capillary tube. The flow cross-sectional area of ​​the second capillary tube is larger than that of the first capillary tube.

[0020] Furthermore, the refrigeration device includes a side panel, a rear wall, a storage space enclosed by the side panel and the rear wall, and a door. The door is pivotally connected to the side panel to open and close the storage space. The sensor is disposed on the surface of the door away from the storage space.

[0021] Furthermore, the side enclosure includes a top wall and a bottom wall parallel to the ground. The sensor is disposed on the surface of the door body near the top wall.

[0022] A second aspect of this application provides a control method for a refrigeration device, used to control the refrigeration device described in the signed embodiment. The control method includes:

[0023] S1. Obtain the environmental parameters.

[0024] S2. Based on the environmental parameters, control the switching valve to switch between the first state and the second state.

[0025] Further, the environmental parameter is humidity. Specifically, S2 includes:

[0026] When the environmental parameter is less than the humidity threshold, the switching valve is controlled to switch to the first state.

[0027] When the environmental parameter is greater than or equal to the humidity threshold, the switching valve is controlled to switch to the second state.

[0028] Furthermore, the step of controlling the switching valve to switch to the second state when the environmental parameter is greater than or equal to the humidity threshold also includes:

[0029] When the environmental parameter is continuously greater than or equal to the humidity threshold for a preset time, the switching valve is controlled to switch to the second state.

[0030] Furthermore, the refrigeration device also includes a pressure-holding valve. One end of the pressure-holding valve is connected to the first outlet, and the other end is connected to the evaporator. And / or, one end of the pressure-holding valve is connected to the decondensation pipe, and the other end is connected to the evaporator.

[0031] The control method further includes:

[0032] S3. When the switching valve is in the first state, obtain the on / off state of the compressor.

[0033] S4. When the compressor is in the on state, activate the pressure holding valve. When the compressor is in the off state, close the pressure holding valve.

[0034] A third aspect of this application provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the methods described in the above embodiments.

[0035] The technical solutions provided by the embodiments of this application may include the following beneficial effects:

[0036] As can be seen from the above embodiments, the refrigeration device of this application, by setting a switching valve, controller, and sensor, enables the refrigeration device to select different refrigeration circuits to operate under different external environmental conditions, meeting the needs of energy saving and decondensation, and improving the user experience. At the same time, the refrigeration device can separate the first and second circuits, preventing fluid in the first circuit from flowing into the second circuit to form an internal circulation and fluid turbulence, thus achieving accurate control of the refrigerant flow direction.

[0037] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this application. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 The diagram shows an overall schematic representation of one embodiment of the refrigeration apparatus of this application;

[0040] Figure 2 The diagram shows an internal circuit schematic of one embodiment of the refrigeration device of this application;

[0041] Figure 3 The diagram shown is a simplified control schematic of one embodiment of the refrigeration apparatus of this application;

[0042] Figure 4 The diagram shows a flow chart of one embodiment of the control method for the refrigeration device of this application.

[0043] Explanation of reference numerals in the attached figures:

[0044] 100 Refrigeration unit, 11 Compressor, 12 First condenser, 121 Condensation inlet, 122 Condensation outlet, 13 Switching valve, 14 Second condenser, 15 Decondensation pipe, 16 Evaporator, 17 Controller, 18 Sensor, 191 First pressure holding valve, 192a First dryer filter, 192b Second dryer filter, 193a First capillary tube, 193b Second capillary tube, 2 Side wall, 21 Top wall, 22 Bottom wall, 3 Rear wall, 4 Door, X First direction, Y Second direction, Z Third direction. Detailed Implementation

[0045] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The manner described in the following exemplary embodiments does not represent all manner consistent with this application. Rather, they are merely examples of apparatuses consistent with some aspects of this application as detailed in the appended claims.

[0046] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to limit the application. Unless otherwise defined, the technical or scientific terms used in this application should be understood in their ordinary sense by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are only used to distinguish different components. Similarly, the terms "a" or "one," etc., do not indicate a quantity limitation, but rather indicate the presence of at least one, which will be separately stated if only "a" is referred to. "A plurality" or "several" means two or more. Unless otherwise indicated, the terms "front," "rear," "lower," and / or "upper," etc., are for ease of description only and are not limited to a location or spatial orientation. The terms "comprising" or "including," etc., mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. The terms “connection” or “link” are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The singular forms “a,” “the,” and “the” used in this specification and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0047] refer to Figures 1 to 3 This application provides a refrigeration device 100. The refrigeration device 100 of this application can be understood as follows: Figure 1 The refrigerator, wine cabinet, freezer, and other similar devices are shown. The following description will use a refrigerator as an example of a refrigeration unit 100. The refrigeration unit 100 includes a side panel 2, a rear wall 3, and a storage space enclosed by the side panel 2 and the rear wall 3. The refrigeration unit 100 also has a door 4 pivotally connected to the side panel 2, allowing the storage space to be opened and closed. The storage space should be understood as a space for storing refrigerated or frozen items. In conditions of high humidity, for example, moisture in the air may condense into dew at the door 4, causing inconvenience when the user opens and closes the door 4.

[0048] To alleviate this problem, refer to Figure 2The refrigeration device 100 of this application includes a compressor 11, a first condenser 12, a switching valve 13, a decondensation pipe 15, and an evaporator 16. The first condenser 12 includes a condensation inlet 121 and a condensation outlet 122. The high-pressure end of the compressor 11 is connected to the condensation inlet 121, and the low-pressure end is connected to the evaporator 16. The switching valve 13 includes an inlet, a first outlet, and a second outlet. The condensation outlet 122 is connected to the inlet. The first outlet is connected to the evaporator 16. One end of the decondensation pipe 15 is connected to the second outlet, and the other end is connected to the evaporator 16.

[0049] The switching valve 13 has a first state and a second state: when the switching valve 13 is in the first state, it connects the first outlet and the evaporator 16; when the switching valve 13 is in the second state, it connects the second outlet, the decondensation pipe 15, and the evaporator 16. The compressor 11 in the refrigeration unit 100 primarily absorbs the low-temperature, low-pressure refrigerant vapor from the evaporator 16, which, after adiabatic compression by the compressor 11, ultimately becomes high-temperature, high-pressure vapor. The first condenser 12 in the refrigeration unit 100 introduces the high-temperature, high-pressure vapor from the compressor 11, condenses the refrigerant vapor under the same pressure, and simultaneously dissipates heat to the surrounding medium, turning it into a high-pressure, low-temperature refrigerant. The evaporator 16 evaporates the heat from the refrigerant liquid into saturated refrigerant vapor, achieving the purpose of refrigeration.

[0050] The refrigeration unit 100 also includes an electrically connected controller 17 and a sensor 18 for sensing external environmental parameters. The controller 17 controls the switching valve 13 to switch between a first state and a second state based on the environmental parameters.

[0051] In other words, the refrigeration device 100 of this application includes two refrigeration circuits, and the controller 17 can control the switching valve 13 to switch to different circuits under different environmental conditions so that the refrigeration device 100 can be adjusted to the optimal operating state. Hereinafter, the circuit in which the refrigerant flows when the switching valve 13 is in the first state will be referred to as the first circuit, and the circuit in which the refrigerant flows when the switching valve 13 is in the second state will be referred to as the second circuit.

[0052] In the first circuit, the refrigerant from compressor 11 is condensed by the first condenser 12, and then enters the evaporator 16 for evaporation, thus achieving the purpose of refrigeration. In the second circuit, the refrigerant from compressor 11 is condensed by the first condenser 12 and then flows into the decondensation pipe 15 to release heat. Thus, at the location of the decondensation pipe 15, the refrigeration unit 100 continuously generates heat, making it difficult for water vapor in the air to condense at that location, thereby effectively achieving decondensation.

[0053] Environmental parameters can actually be diverse. Taking humidity as an example, when sensor 18 detects high humidity in the external environment, controller 17 can control switching valve 13 to switch to the second state. In the second state, the decondensation pipe 15 generates heat, enabling the refrigeration unit 100 to remove condensed dew and increase the dryness around the refrigeration unit 100. When the humidity is low, controller 17 can control switching valve 13 to switch to the first state, where the refrigerant does not lose heat through the decondensation pipe 15 but flows to the evaporator 16 to maintain the normal cooling operation of the refrigeration unit 100, thus reducing the energy consumption of the refrigeration unit 100 and making it more energy-efficient.

[0054] As can be seen, the refrigeration device 100 of this application, by setting a switching valve 13, a controller 17 and a sensor 18, enables the refrigeration device 100 to select different refrigeration circuits to work under different external environmental conditions, thereby meeting the needs of energy saving and decondensation, and improving the user experience.

[0055] Since the door 4 is used to open and close storage space, there is a significant temperature difference at the contact point between the door 4 and the side panel 2. In some embodiments, the decondensation pipe 15 is located on the outer periphery of the door 4 to prevent condensation from forming on the outer periphery of the door 4 due to temperature and humidity differences. When a user opens the door 4, their hand typically touches the outer periphery of the door 4. Therefore, this arrangement helps to keep the door 4 dry, thereby improving the user experience when opening and closing the door 4. Admittedly, in other embodiments, the flexibility of the decondensation pipe 15 allows it to be placed in any desired location, such as at the bottom of the refrigeration unit 100 near a damp surface. This application is not limited in this respect.

[0056] In some embodiments, the refrigeration device 100 further includes a second condenser 14. One end of the second condenser 14 is connected to the first outlet, and the other end is connected to the evaporator 16. By providing the second condenser 14, the refrigerant can undergo further condensation and heat dissipation at the second condenser 14, reducing the overall heat load of the refrigeration device 100. In this way, the problem of increased energy consumption due to heat load during daily use of the refrigeration device 100 can be alleviated to some extent.

[0057] Furthermore, the first and second loops separate after switching valve 13 and then converge at evaporator 16. This is because there is a pressure difference between the inlet and outlet of evaporator 16. When fluid from the first loop enters evaporator 16, it can only leave through evaporator 16 under pressure and will not flow into the second loop into condenser pipe 15. Similarly, when fluid from the second loop enters evaporator 16, it can only leave through evaporator 16 under pressure and will not flow into the second condenser 14 of the first loop. This arrangement allows the first and second loops to be independent, preventing fluid from the first loop from flowing into the second loop, forming an internal circulation and causing fluid turbulence, thus achieving accurate control of the refrigerant flow direction.

[0058] The second condenser 14 can be located on either the side wall 2 or the rear wall 3. The side wall 2 has a larger installation area than the rear wall 3, thus offering greater flexibility in its placement. However, the refrigeration unit 100 is typically positioned with the rear wall 3 facing the wall and not exposed. Therefore, placing the second condenser 14 on the rear wall improves the overall aesthetics of the refrigeration unit 100, while also controlling the number of condensers and improving energy efficiency. In embodiments where the second condenser 14 is located on both the side wall 2 and the rear wall 3, the heat exchange performance of the refrigeration unit 100 is even better.

[0059] Since sensor 18 is used to sense environmental parameters of the external environment of the refrigeration device 100, in some embodiments, sensor 18 is disposed on the surface of the door 4 away from the storage space. For example... Figure 1 As shown, sensor 18 can be installed on the surface of door 4 away from the storage space in the second direction Y, or on the surface of door 4 in the third direction Z and the surface in the first direction X. Compared with the embodiment where the sensor is installed on the side wall 2 and the rear wall 3, in this embodiment, the sensor 18 can be in contact with the external environment regardless of whether the refrigeration device 100 is embedded in the cabinet. Therefore, this arrangement can meet the requirement of acquiring environmental parameters for the refrigeration device 100 in different placement positions. At the same time, since door 4 is exposed to the external environment, the sensor 18 installed on door 4 can acquire environmental parameters more accurately, which is beneficial to improving the loop switching control effect of controller 17 on refrigeration device 100.

[0060] The side enclosure 2 includes a top wall 21 and a bottom wall 22 parallel to the ground. Further, in... Figure 1In the illustrated embodiment, sensor 18 is disposed on the surface of door 4 near the top wall 21. This placement provides better concealment and enhances the aesthetics of the refrigeration unit 100. Furthermore, since the humidity and temperature parameters on the ground are often different from those on the top, this placement near the top wall 21 improves the accuracy of sensor 18's assessment of the external environment. Moreover, in embodiments where the environmental parameter is humidity, temporary increases in ground humidity may occur due to users mopping or accidental water spills. The humidity near the top wall 21, however, remains relatively uniform. Therefore, this placement enhances the accuracy of the data acquired by sensor 18.

[0061] The internal circuit of the refrigeration unit 100 operates intermittently during the refrigeration process, not continuously. Taking the first circuit as an example, at the moment of shutdown, the compressor 11 stops pumping fluid, and both the first condenser 12 and the evaporator 16 stop working. At this time, the fluid in the refrigeration circuit still retains inertia, so the fluid leaving the compressor 11 continues to flow into the first condenser 12. However, since the first condenser 12 has stopped working, the high-temperature fluid will enter the evaporator 16, causing the temperature of the evaporator 16 to rise rapidly. This phenomenon can easily damage the evaporator 16.

[0062] Therefore, as Figure 2 As shown, in some embodiments, the refrigeration device 100 further includes a first pressure-holding valve 191. One end of the first pressure-holding valve 191 is connected to a first outlet, and the other end is connected to the evaporator 16. The first pressure-holding valve 191 is used to maintain the fluid pressure in the refrigerant circuit, thereby protecting the evaporator 16. When the compressor 11 stops working, the first pressure-holding valve 191 closes. In this way, even if the fluid in the first circuit flows past the first condenser 12 due to inertia, it will be stopped by the first pressure-holding valve 191, preventing it from entering the evaporator 16.

[0063] Figure 2 Only the first pressure-holding valve 191 is shown in the first circuit. However, in other embodiments, the refrigeration unit 100 may similarly include a second pressure-holding valve. One end of the second pressure-holding valve is connected to the decondensation pipe 15, and the other end is connected to the evaporator 16. By providing the second pressure-holding valve, the refrigeration unit 100 can also prevent refrigerant from flowing into the evaporator 16 from the second circuit due to inertia when the compressor 11 stops working.

[0064] It should be understood that the refrigeration device 100 may include both a first pressure holding valve 191 and a second pressure holding valve, so that pressure holding devices are provided in both the first and second circuits to protect the evaporator 16 and prevent damage to the evaporator 16.

[0065] In some embodiments, the refrigeration device 100 further includes a first dryer filter 192a and a second dryer filter 192b. One end of the first dryer filter 192a is connected to a first outlet, and the other end is connected to the evaporator 16. One end of the second dryer filter 192b is connected to a decondensation pipe 15, and the other end is connected to the evaporator 16. The dryer filters can filter impurities, preventing fluid blockage in the refrigeration circuit, which could lead to ice blockage in the refrigeration device 100.

[0066] Admittedly, the refrigeration unit 100 may include only the first dryer filter 192a, or only the second dryer filter 192b. For example, the refrigeration unit 100 may include only the first dryer filter 192a. In this case, when the refrigerant switching valve 13 is switched to the first state, impurities can be filtered in the first circuit. However, since both the first and second circuits are equipped with dryer filters, the problem of the refrigeration unit 100 failing to filter impurities when operating in a single circuit for an extended period can be avoided.

[0067] In some embodiments, the refrigeration device 100 further includes a first capillary tube 193a and a second capillary tube 193b. One end of the first capillary tube 193a is connected to a first outlet, and the other end is connected to the evaporator 16. One end of the second capillary tube 193b is connected to a decondensation pipe 15, and the other end is connected to the evaporator 16. The main function of the capillary tube in the refrigeration device 100 is to convert the high-pressure, low-temperature refrigerant into low-temperature, low-pressure refrigerant vapor after isenthalpic throttling in the capillary tube, and then send the refrigerant vapor into the evaporator 16. The evaporator 16 boils the low-temperature, low-pressure refrigerant vapor passing through the capillary tube under isobaric conditions. During the boiling process, the refrigerant vapor absorbs heat from the surrounding medium and eventually becomes low-temperature, low-pressure, dry-saturated refrigerant vapor, which then goes to the compressor 11.

[0068] Furthermore, in this embodiment, the flow cross-sectional area of ​​the second capillary tube 193b can be set to be larger than that of the first capillary tube 193a. A smaller flow cross-sectional area of ​​the capillary tube reduces the amount of refrigerant flowing to the evaporator 16, thus reducing the cooling effect of the evaporator 16 and effectively controlling the energy consumption of the refrigeration device 100. An increased flow cross-sectional area of ​​the capillary tube increases the amount of refrigerant flowing to the evaporator 16, resulting in a higher evaporation temperature in the evaporator 16, which helps reduce the likelihood of condensation on the surface of the refrigeration device 100. As described above, when the refrigeration device 100 needs decondensation, the controller 17 controls the switching valve 13 to switch to the second state, so the refrigerant flows to the second circuit. At this time, the high-flow-rate second capillary tube 193b can raise the temperature of the evaporator 16, assisting the decondensation pipe 15 in performing the decondensation operation. When the refrigeration unit 100 does not require decondensation, the controller 17 switches the control valve to the first state, so the refrigerant flows to the first circuit. At this time, the first capillary tube 193a with a small flow rate can effectively control the energy consumption of the refrigeration unit 100, resulting in better energy-saving performance.

[0069] The refrigeration device 100 may include only the first capillary tube 193a or only the second capillary tube 193b, and this application is not limited in this regard. The term "connection" should be understood as either a direct or indirect connection. For example, in an embodiment where only the second capillary tube 193b is included in the second circuit without the second dryer filter 192b, the second capillary tube 193b is directly connected to the decondensation pipe 15. In embodiments where both the second capillary tube 193b and the second dryer filter 192b are provided in the second circuit, such as... Figure 1 As shown, one end of the second dryer filter 192b is connected to the decondensation pipe 15, and the other end is connected to the second capillary tube 193b. In this embodiment, the second capillary tube 193b is indirectly connected to the decondensation pipe 15. The refrigerant passes through the first dryer filter 192a before entering the first capillary tube 193a. This arrangement helps to prevent impurities from entering the first capillary tube 193a and causing blockage and damage, thereby improving the service life of the first capillary tube 193a.

[0070] Similarly, the second circuit may also be equipped with a second capillary tube 193b and a second drying filter 192b, with one end of the second drying filter 192b connected to the second capillary tube 193b and the other end connected to the switching valve 13. This application will not elaborate further on this.

[0071] In an embodiment where the refrigeration device 100 is equipped with both a first pressure-holding valve 191 and a first capillary tube 193a, one end of the first pressure-holding valve 191 is connected to the first outlet, and the other end is connected to the first capillary tube 193a. In other words, in this embodiment, with reference to the refrigerant flow direction, the first pressure-holding valve 191 is located at the front end of the first capillary tube 193a. Because the orifice of the first capillary tube 193a is relatively small, only a certain amount of high-pressure liquid can pass through. Therefore, the refrigerant expands into a gas after exiting the capillary tube. During the expansion process, the refrigerant absorbs heat, resulting in refrigeration. It can be seen that this heat change process will occur whenever the first capillary tube 193a is used, and it is difficult to avoid the heat change of the refrigerant by stopping components such as the first condenser 12. By setting the first pressure-holding valve 191 at the front end of the first capillary tube 193a, when the compressor 11 stops working, the first pressure-holding valve 191 can prevent the refrigerant from flowing to the first capillary tube 193a and generating heat changes, thereby reducing heat loss and improving the energy-saving effect of the refrigeration device 100.

[0072] Similarly, in an embodiment where the refrigeration device 100 is equipped with both a second pressure-holding valve and a second capillary tube 193b, one end of the second pressure-holding valve is connected to the decondensation pipe 15 and the other end is connected to the second capillary tube 193b. This application will not elaborate further on this aspect.

[0073] Based on the above embodiments, this application also provides a control method for controlling the refrigeration device 100. For example... Figure 4 As shown, the control methods include:

[0074] Step 201: Obtain environmental parameters.

[0075] Environmental parameters can be, for example, humidity and temperature, and can be a combination of various parameters, such as a combination of humidity and temperature. Obtaining environmental parameters allows us to determine the external environmental conditions of the refrigeration device 100, thus facilitating subsequent steps to adjust the refrigeration device 100 to its optimal operating state based on the current environmental conditions.

[0076] Step 202: Based on environmental parameters, control the switching valve 13 to switch between the first state and the second state.

[0077] Taking humidity as an example of an environmental parameter, step 202 may include:

[0078] When the environmental parameters are less than the humidity threshold, control switching valve 13 switches to the first state;

[0079] When the environmental parameter is greater than or equal to the humidity threshold, the control switching valve 13 switches to the second state.

[0080] As mentioned earlier, when the switching valve 13 is in the second state, the decondensation pipe 15 is operational. At this time, the location of the decondensation pipe 15 in the refrigeration unit 100 generates heat. Therefore, when the humidity is greater than or equal to the humidity threshold, by controlling the switching valve 13 to switch to the second state, the refrigeration unit 100 can reduce the probability of condensation forming on the surface of the decondensation pipe 15 in the air, maintaining the dryness of the refrigeration unit 100. Thus, users do not need to repeatedly clean the surface of the refrigeration unit 100 to remove dew when humidity is high, improving the user experience.

[0081] When the switching valve 13 is in the first state, the decondenser pipe 15 does not work. At this time, the refrigerant of the refrigeration unit 100 enters the refrigeration unit 100 through the first condenser 12 to perform the work required for refrigeration. Therefore, the refrigerant is only used for refrigeration, reducing other heat losses and making it more energy-efficient.

[0082] To further improve heat dissipation at the decondensation pipe 15, in some embodiments, when the environmental parameter is greater than or equal to the humidity threshold, the control switching valve 13 is switched to the second state and the first condenser 12 is controlled to adopt a low-speed heat dissipation mode. In this way, the heat dissipated at the first condenser 12 is reduced, and the heat in the refrigerant can be concentrated at the decondensation pipe 15 for heating and decondensation.

[0083] Similarly, in some embodiments, when the environmental parameters are less than the humidity threshold, the control switching valve 13 switches to the first state and the first condenser 12 is controlled to adopt a high-speed heat dissipation mode. This setting improves the heat dissipation performance of the first condenser 12, which helps to reduce the heat load of the refrigeration unit 100 and is more energy-efficient in daily use.

[0084] Furthermore, controlling the switching valve 13 to switch to the second state when the environmental parameter is greater than or equal to the humidity threshold also includes: controlling the switching valve 13 to switch to the second state when the environmental parameter is continuously greater than or equal to the humidity threshold for a preset time.

[0085] In other words, this embodiment sets a preset time for verification. Only when the humidity is consistently greater than or equal to a humidity threshold is it determined that condensation is likely to form on the surface of the refrigeration unit 100. In daily life, the ambient humidity of the refrigeration unit 100 may change due to ventilation, user cleaning of the refrigeration unit 100 with water, the ground near the refrigeration unit 100, or accidental water spillage. These situations only temporarily increase the humidity of the ambient air around the refrigeration unit 100, thus the possibility of condensation on the surface of the refrigeration unit 100 is low, and the controller 17 does not control the switching valve 13 to switch during these situations. If the controller 17 is frequently switched to the second state, the overall operating energy consumption of the refrigeration unit 100 will increase. Therefore, this embodiment not only reduces the operating energy consumption of the controller 17 but also improves the accuracy of judging the external environment of the refrigeration unit 100 and reduces the overall operating energy consumption of the refrigeration unit 100.

[0086] This application does not impose a specific limitation on the humidity threshold. The humidity threshold can be, for example, 70%, 75%, 80%, 85%, 90%, etc. This application does not limit this. Similarly, the preset time can also be set according to needs, for example, set to 1h, 2h, 3h, 4h, etc.

[0087] In some embodiments, the environmental parameter is temperature. Then step 202 can be: when the environmental parameter is greater than the temperature threshold, control the switching valve 13 to switch to the first state; when the environmental parameter is less than or equal to the temperature threshold, control the switching valve 13 to switch to the second state.

[0088] As described above, in the second state, the cooling device 100 dissipates heat more effectively. However, if the cooling device 100 continues to dissipate heat in the second state when the ambient temperature is high, the operating temperature of the cooling device 100 will become too high, which is detrimental to the normal operation of electronic components and may lead to abnormal cooling. Therefore, under this condition, the control switching valve 13 switches to the first state to reduce the external temperature of the cooling device 100.

[0089] As can be seen, the control method provided in this application can be flexibly adjusted according to the location of the refrigeration device 100 or the season, and allows the refrigeration device 100 to work in different modes under different environmental conditions, thereby meeting functional and energy-saving requirements.

[0090] In an embodiment where the refrigeration device 100 includes a first pressure-holding valve 191, the control method may further include the steps of:

[0091] When the switching valve 13 is in the first state, the on / off state of the compressor 11 is obtained;

[0092] When the compressor 11 is in the on state, the first pressure holding valve 191 is activated. When the compressor 11 is in the off state, the first pressure holding valve 191 is closed.

[0093] In this embodiment, the opening states of the compressor 11 and the first pressure holding valve 191 are linked, so that the first pressure holding valve 191 is closed simultaneously when the compressor 11 is turned off. This makes it difficult for the refrigerant in the first circuit to enter the evaporator 16 through the first pressure holding valve 191 even if it continues to move forward due to inertia, which helps to protect the evaporator 16.

[0094] Admittedly, in embodiments where the refrigeration device 100 includes a second pressure-holding valve, the control method can similarly link the compressor 11 and the second pressure-holding valve. In embodiments where the refrigeration device 100 includes both a first pressure-holding valve 191 and a second pressure-holding valve, the control method can simultaneously link the compressor 11, the first pressure-holding valve 191, and the second pressure-holding valve; this application is not limiting in this regard.

[0095] This application also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, can be used to perform the above-described actions. Figure 4 The control method for the provided refrigeration unit 100.

[0096] The specific embodiments described herein are merely illustrative examples of the spirit of this application. Those skilled in the art to which this application pertains may make various modifications, additions, or use similar methods to replace the described specific embodiments, without departing from the spirit of this application or exceeding the scope defined by the appended claims.

[0097] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. A refrigeration device, characterized in that, It includes a compressor, a first condenser, a switching valve, a decondensation pipe, and an evaporator; the first condenser includes a condensation inlet and a condensation outlet; the high-pressure end of the compressor is connected to the condensation inlet, and the low-pressure end is connected to the evaporator; The switching valve includes an inlet, a first outlet, and a second outlet; the condensate outlet is connected to the inlet; the first outlet is connected to the evaporator; one end of the decondensation pipe is connected to the second outlet, and the other end is connected to the evaporator; The refrigeration device also includes an electrically connected controller and sensors for sensing external environmental parameters; The controller controls the switching valve to switch between a first state and a second state based on the environmental parameters. When in the first state, the switching valve connects the first outlet and the evaporator; When in the second state, the switching valve connects the second outlet, the decondenser pipe, and the evaporator.

2. The refrigeration device according to claim 1, characterized in that, The refrigeration device further includes a second condenser; one end of the second condenser is connected to the first outlet, and the other end is connected to the evaporator.

3. The refrigeration device according to claim 2, characterized in that, The refrigeration device includes a side enclosure, a rear wall, and a storage space enclosed by the side enclosure and the rear wall; the second condenser is disposed on the side enclosure and / or the rear wall.

4. The refrigeration device according to claim 1, characterized in that, The refrigeration device further includes a first pressure-holding valve; one end of the first pressure-holding valve is connected to the first outlet, and the other end is connected to the evaporator; and / or The refrigeration device also includes a second pressure holding valve; one end of the second pressure holding valve is connected to the decondensation pipe and the other end is connected to the evaporator.

5. The refrigeration device according to claim 1, characterized in that, The refrigeration device further includes a first dryer filter; one end of the first dryer filter is connected to the first outlet, and the other end is connected to the evaporator; and / or, The refrigeration device further includes a second dryer filter; one end of the second dryer filter is connected to the decondensation pipe and the other end is connected to the evaporator.

6. The refrigeration device according to claim 1, characterized in that, The refrigeration device further includes a first capillary tube; one end of the first capillary tube is connected to the first outlet, and the other end is connected to the evaporator; and / or, The refrigeration device further includes a second capillary tube; one end of the second capillary tube is connected to the decondensation tube and the other end is connected to the evaporator.

7. The refrigeration device according to claim 6, characterized in that, The refrigeration device includes a first capillary tube and a second capillary tube; wherein the flow cross-sectional area of ​​the second capillary tube is larger than that of the first capillary tube.

8. The refrigeration device according to claim 1, characterized in that, The refrigeration device includes a side panel, a rear wall, a storage space enclosed by the side panel and the rear wall, and a door; the door is pivotally connected to the side panel to open and close the storage space; the sensor is disposed on the surface of the door away from the storage space.

9. The refrigeration device according to claim 8, characterized in that, The side enclosure includes a top wall and a bottom wall parallel to the ground; the sensor is disposed on the surface of the door body on the side near the top wall.

10. A method for controlling a refrigeration device, used to control the refrigeration device as described in any one of claims 1-9; characterized in that, The control method includes: S1. Obtain the environmental parameters; S2. Based on the environmental parameters, control the switching valve to switch between the first state and the second state.

11. The control method according to claim 10, characterized in that, The environmental parameter is humidity; S2 specifically includes: When the environmental parameter is less than the humidity threshold, the switching valve is controlled to switch to the first state; When the environmental parameter is greater than or equal to the humidity threshold, the switching valve is controlled to switch to the second state.

12. The control method according to claim 11, characterized in that, The step of controlling the switching valve to switch to the second state when the environmental parameter is greater than or equal to the humidity threshold also includes: When the environmental parameter is continuously greater than or equal to the humidity threshold for a preset time, the switching valve is controlled to switch to the second state.

13. The control method according to claim 10, characterized in that, The refrigeration device also includes a pressure holding valve; one end of the pressure holding valve is connected to the first outlet and the other end is connected to the evaporator; And / or, one end of the pressure-holding valve is connected to the decondensation pipe and the other end is connected to the evaporator; The control method further includes: S3. When the switching valve is in the first state, obtain the on / off state of the compressor; S4. When the compressor is in the on state, the pressure holding valve is activated; when the compressor is in the off state, the pressure holding valve is closed.

14. A computer-readable storage medium, characterized in that, The storage medium stores a computer program, which, when executed by a processor, implements the method described in any one of claims 10-13.

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