Refrigeration equipment

Abstract

The utility model provides refrigeration equipment. The refrigeration equipment comprises a condenser, a valve assembly; a first evaporator; a second evaporator; and the chamber heating mechanism and the second evaporator are arranged in the same chamber. According to the refrigeration equipment, the first throttling mechanism and the second throttling mechanism which are different in flow are used for supplying refrigerants to the first evaporator, the heat exchange amount of the first evaporator is adjusted so that it can be guaranteed that the first evaporator can meet the refrigeration requirement and the freezing requirement, and meanwhile the third throttling mechanism is arranged to independently supply refrigerants to the second evaporator; when the first evaporator does not need to conduct heat exchange or completes heat exchange, the second evaporator can still conduct heat exchange to guarantee the heat exchange effect of the second evaporator, various refrigeration requirements of the refrigeration equipment are guaranteed, meanwhile, the compartment heating mechanism is arranged to compensate the temperature of the compartment, it is guaranteed that the refrigeration equipment works reliably, and the service life of the refrigeration equipment is prolonged. And the user experience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigeration, in particular to a refrigeration device. Background Art

[0002] Modern urban kitchens are compact, and small refrigerators are popular among users. Small refrigerators generally have simple functions, and the volume of each functional compartment is relatively fixed. However, users' needs for refrigerator functions and capacity vary at different times of the year. In the summer, due to high temperatures, a large refrigeration capacity is needed for storing items; during holidays, large amounts of meat may need to be stored, which requires a large freezer capacity.

[0003] However, the prior art discloses a refrigerator that can freely switch between refrigeration and freezing for multiple compartments. The evaporator of the refrigeration compartment and the evaporator of the freezing compartment are connected in parallel to achieve the purpose of switching between refrigeration and freezing for each compartment. When each compartment has a cooling demand, the flow rate distributed between the compartments is unreliable, resulting in insufficient cooling capacity for some compartments. Moreover, when the temperature of one compartment needs to be adjusted, the flow rate needs to be redistributed, which affects the temperature of other compartments. As a result, the cooling or freezing effect of the items in the compartment cannot be guaranteed, which seriously affects the reliability of the refrigerator. Utility Model Content

[0004] In order to solve the technical problem that the refrigeration or freezing effect of the refrigerator in the prior art cannot be guaranteed and thus affects the reliability of use, a refrigeration device is provided which uses a compartment heating mechanism to compensate for heating the compartment to ensure the compartment temperature and thus improve reliability.

[0005] A refrigeration device, comprising:

[0006] condenser;

[0007] a valve assembly, the valve assembly having a refrigerant inlet, a first refrigerant outlet, a second refrigerant outlet, and a third refrigerant outlet, the refrigerant inlet being in communication with the condenser;

[0008] a first evaporator, wherein the first evaporation inlet and the first evaporation outlet are provided on the first evaporation inlet, the first evaporation inlet is connected to the first refrigerant outlet via a first throttling mechanism, and the first evaporation inlet is connected to the second refrigerant outlet via a second throttling mechanism, and the flow rate of the first throttling mechanism is greater than the flow rate of the second throttling mechanism;

[0009] a second evaporator, wherein the second evaporation inlet is provided on the second evaporation inlet, the second evaporation inlet is connected to the third refrigerant outlet through a third throttling mechanism, and the first evaporation outlet is connected to the second evaporation inlet;

[0010] The compartment heating mechanism is arranged in the same compartment as the second evaporator.

[0011] The refrigeration device further includes a shell, wherein a first compartment and a second compartment are formed in the shell, the first evaporator is located in the first compartment, and the second evaporator and the compartment heater are both located in the second compartment.

[0012] The refrigeration equipment also includes a first evaporation fan and a second evaporation fan. The first evaporation fan is arranged on one side of the first evaporator, and the first evaporation fan can make the gas pass through the first evaporator. The second evaporation fan is arranged on one side of the second evaporator, and the second evaporation fan can make the gas pass through the second evaporator.

[0013] The refrigeration equipment further includes a compressor, and the second evaporator has a second evaporation outlet, which is connected to the compressor through a return air pipeline.

[0014] The refrigeration equipment further includes a return air heating mechanism, which is disposed on the return air pipeline and can heat the return air pipeline.

[0015] The return air line can exchange heat with at least one of the first throttling mechanism, the second throttling mechanism, and the third throttling mechanism.

[0016] The refrigeration device further includes a partition assembly, which is disposed in the shell and divides the interior of the shell into the first chamber and the second chamber.

[0017] The refrigeration equipment includes a refrigerator.

[0018] The refrigeration equipment has a full refrigeration mode:

[0019] When the refrigeration device is in the full refrigeration mode, the refrigerant inlet is controlled to be connected to the first refrigerant outlet, and the refrigerant inlet is disconnected from the second refrigerant outlet and the third refrigerant outlet.

[0020] The refrigeration equipment has a first compartment refrigeration mode and a second compartment freezing mode:

[0021] When the refrigeration device is in a refrigeration mode in which the first compartment is refrigerated and the second compartment is frozen, the refrigerant inlet is controlled to be connected to the first refrigerant outlet, and the refrigerant inlet is disconnected from the second refrigerant outlet and the third refrigerant outlet.

[0022] The refrigeration equipment has a full freezing mode:

[0023] When the refrigeration device is in the full freezing mode, the refrigerant inlet is controlled to be connected to the second refrigerant outlet and the third refrigerant outlet, and the refrigerant inlet is disconnected from the first refrigerant outlet.

[0024] The refrigeration device provided by the utility model utilizes the first throttling mechanism and the second throttling mechanism with different flow rates to supply refrigerant to the first evaporator, and adjusts the heat exchange of the first evaporator to ensure that the first evaporator can adapt to the refrigeration demand and the freezing demand. When the first evaporator is adapted to the refrigeration demand, the refrigerant of the first evaporator can enter the second evaporator for heat exchange again, which can effectively avoid the problem of liquid hammer risk of the compressor caused by the return temperature being too low. At the same time, the third throttling mechanism is provided to supply refrigerant to the second evaporator separately. When the first evaporator does not need to exchange heat or has completed heat exchange, the second evaporator can still exchange heat to ensure the heat exchange effect of the second evaporator, and even achieve a deep freezing effect, thereby ensuring multiple refrigeration needs of the refrigeration device. At the same time, the compartment heating mechanism is provided to compensate for the temperature of the compartment, ensure that the temperature of the compartment meets the demand, ensure the refrigeration or freezing effect of the compartment on the articles, thereby ensuring the reliable operation of the refrigeration device and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic structural diagram of a refrigeration device provided in an embodiment of the present utility model;

[0026] Figure 2 Another structural schematic diagram of the refrigeration equipment provided by an embodiment of the utility model;

[0027] Figure 3 A three-dimensional diagram of a refrigeration device provided in an embodiment of the present utility model;

[0028] Figure 4 Another perspective view of the refrigeration device provided by an embodiment of the utility model;

[0029] Figure 5 Another perspective view of the refrigeration device provided by an embodiment of the utility model;

[0030] In the picture:

[0031] 1. Condenser; 2. Valve assembly; 21. Refrigerant inlet; 22. First refrigerant outlet; 23. Second refrigerant outlet; 24. Third refrigerant outlet; 3. First evaporator; 31. First evaporation inlet; 32. First evaporation outlet; 41. First throttling mechanism; 42. Second throttling mechanism; 5. Second evaporator; 51. Second evaporation inlet; 43. Third throttling mechanism; 6. Chamber heating mechanism; 7. Shell; 71. First chamber; 72. Second chamber; 81. First evaporation fan; 82. Second evaporation fan; 9. Compressor; 10. Return air line; 101. Return air heating mechanism. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0033] In order to help those skilled in the art better understand the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0034] It should be noted that the terms "first," "second," and the like in the specification and claims of the present invention and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate for the embodiments of the present invention described herein. In addition, the terms "including" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to these processes, methods, products, or apparatuses.

[0035] It should be noted that in the description of this utility model, terms such as "upper," "lower," "left," "right," "inner," and "outer" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. These terms are used solely for ease of description and are not intended to indicate or imply that the device or component described must have a specific orientation, be constructed, or operate in a specific position. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] Furthermore, it should be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "installed," "set," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0037] The prior art discloses a refrigerator that can freely switch between refrigeration and freezing for multiple compartments. The evaporator of the refrigeration compartment and the evaporator of the freezing compartment are arranged in parallel to achieve the purpose of switching between refrigeration and freezing for each compartment. When there is a cooling demand for each compartment, the flow rate distributed between the compartments is unreliable, resulting in insufficient cooling capacity for some compartments. Moreover, when the temperature of one compartment needs to be adjusted, the flow rate needs to be redistributed, which affects the temperature of other compartments. As a result, the cooling or freezing effect of the items in the compartment cannot be guaranteed, which seriously affects the reliability of the refrigerator.

[0038] To this end, this application provides a Figures 1 to 5 The refrigeration equipment shown includes: a condenser 1; a valve assembly 2, the valve assembly 2 having a refrigerant inlet 21, a first refrigerant outlet 22, a second refrigerant outlet 23 and a third refrigerant outlet 24, the refrigerant inlet 21 being connected to the condenser 1; a first evaporator 3, the first evaporation inlet 31 and a first evaporation outlet 32 being provided on the first evaporation inlet 31, the first evaporation inlet 31 being connected to the first refrigerant outlet 22 through a first throttling mechanism 41, and the first evaporation inlet 31 being connected to the second refrigerant outlet 23 through a second throttling mechanism 42, the flow rate of the first throttling mechanism 41 being greater than the flow rate of the second throttling mechanism 42; a second evaporator 5, the second evaporation inlet 51 being provided on the second evaporation inlet 51, the second evaporation inlet 51 being connected to the third refrigerant outlet 24 through a third throttling mechanism 43, and the first evaporation outlet 32 being connected to the second evaporation inlet 51; a compartment heating mechanism 6, the compartment heating mechanism 6 and the second evaporator 5 being arranged in the same compartment. The first throttling mechanism 41 and the second throttling mechanism 42 with different flow rates are used to supply refrigerant to the first evaporator 3, and the heat exchange of the first evaporator 3 is adjusted to ensure that the first evaporator 3 can adapt to the refrigeration demand and the freezing demand. When the first evaporator 3 is adapted to the refrigeration demand, the refrigerant in the first evaporator 3 can enter the second evaporator 5 for heat exchange again, which can effectively avoid the problem of liquid hammer risk caused by the return temperature being too low. At the same time, the third throttling mechanism 43 is provided to supply refrigerant to the second evaporator 5 separately. When the first evaporator 3 does not need to exchange heat or has completed heat exchange, the second evaporator 5 can still exchange heat to ensure the heat exchange effect of the second evaporator 5, and even achieve a deep freezing effect, thereby ensuring multiple refrigeration needs of the refrigeration equipment. At the same time, the compartment heating mechanism 6 is provided to compensate for the temperature of the compartment, ensure that the temperature of the compartment meets the demand, ensure the refrigeration or freezing effect of the compartment on the articles, thereby ensuring the reliable operation of the refrigeration equipment and improving the user experience. The first throttling mechanism 41 is a large flow capillary, the second throttling mechanism 42 is a small flow capillary, and the third throttling mechanism 43 is a small flow capillary.

[0039] The refrigeration device also includes a shell 7, in which a first chamber 71 and a second chamber 72 are formed. The first evaporator 3 is located in the first chamber 71, and the second evaporator 5 and the chamber heater are both located in the second chamber 72. The first evaporator 3 is used to cool the first chamber 71, and the first throttling mechanism 41 or the second throttling mechanism 42 can be selected according to the heat exchange demand of the first chamber 71 to supply refrigerant to the first evaporator 3, thereby controlling the heat exchange capacity of the first evaporator 3 so that the heat exchange capacity of the first evaporator 3 can be adapted to the heat exchange demand of the first chamber 71. For example, when the first chamber 71 is refrigerated, the first evaporator 3 is supplied through the first throttling mechanism 41, reducing the throttling effect on the refrigerant, thereby reducing the heat exchange efficiency of the first chamber 71. When the first chamber 71 is frozen, the first throttling mechanism 41 is used to supply the refrigerant. The evaporator 3 is supplied through the second throttling mechanism 42, which increases the throttling effect on the refrigerant, thereby improving the heat exchange efficiency of the first chamber 71. The refrigerant after heat exchange in the first evaporator 3 can flow into the second evaporator 5 for heat exchange again, ensuring the heat exchange efficiency of the second evaporator 5 to the second chamber 72. The second evaporator 5 can also be supplied through the third throttling mechanism 43, further increasing the amount of refrigerant obtained by the second evaporator 5, thereby improving the heat exchange efficiency of the second evaporator 5 to the second chamber 72. When the first chamber 71 needs to be cooled and the second chamber 72 does not need to be cooled, the second evaporator 5 can be used to cool the second chamber 72 while the chamber heating mechanism 6 is used to heat the second chamber 72, thereby keeping the temperature of the second chamber 72 within the set range, ensuring the storage reliability of the second chamber 72 for items.

[0040] The refrigeration device further includes a first evaporation fan 81 and a second evaporation fan 82. The first evaporation fan 81 is disposed on one side of the first evaporator 3 and is capable of passing air through the first evaporator 3, thereby delivering the air after heat exchange in the first evaporator 3 to the first chamber 71 for cooling. The second evaporation fan 82 is disposed on one side of the second evaporator 5 and is capable of passing air through the second evaporator 5, thereby delivering the air after heat exchange in the second evaporator 5 to the second chamber 72 for cooling. Specifically, when both the first chamber 71 and the second chamber 72 are refrigerated, the real-time temperature T1 of the first chamber 71 and the real-time temperature T2 of the second chamber 72 are respectively obtained, and T1 and T2 are respectively compared with a first preset temperature TLC. If T1>TLC, the first evaporation fan 81 is controlled to operate, and if T2>TLC, the second evaporation fan 82 is controlled to operate.

[0041] The refrigeration equipment also includes a compressor 9, and the second evaporator 5 has a second evaporation outlet. The second evaporation outlet is connected to the compressor 9 through a return air pipeline. That is, at this time, the compressor 9, the valve assembly 2, the first evaporator 3, and the second evaporator 5 together constitute a refrigerant heat exchange cycle, thereby realizing the refrigeration process of the refrigeration equipment. The compressor 9 is a refrigeration power component that compresses the refrigerant into a high-temperature and high-pressure gas. The refrigerant reaches the condenser 1 along the outlet of the compressor 9. In the condenser 1, the refrigerant is converted from a gas to a liquid state and dissipates heat outward. The condensing fan dissipates the heat generated by the condenser 1; the refrigerant then passes through the anti-condensation tube and the drying filter to the valve assembly 2 in turn, and the valve assembly 2 can control the refrigerant to conduct different first throttling mechanisms 41, second throttling mechanisms 42 and / or third throttling mechanisms 43, thereby controlling the flow rate of the refrigerant, and then to the first evaporator 3 or the second evaporator 5, wherein the first throttling mechanism 41 and the second throttling mechanism 42 are connected through a three-stage throttling mechanism. The three-way valve is connected to the first evaporator 3, and the first evaporator 3 and the third throttling mechanism 43 are connected to the second evaporator 5 through another three-way valve. Different refrigerants are conducted to different evaporators according to different compartment settings. The refrigerant evaporates and absorbs heat at the first evaporator 3 and the second evaporator 5 to generate cold air. The first fan and the second fan respectively convert the cold air generated by the first evaporator 3 and the second evaporator 5 into cold air and send it to the air duct assembly connected to the first compartment 71 and the air duct assembly connected to the second compartment 72 to cool the first compartment 71 and the second compartment 72. The refrigerant then returns to the compressor 9, and the refrigeration cycle is carried out in this way.

[0042] Because the refrigeration equipment is configured for a full freezing mode, the cooling capacity design prioritizes achieving full freezing. The refrigeration system design for modes other than full freezing will have an excessive amount of refrigerant. When the refrigeration equipment is operating in the refrigeration mode, due to low load, excessive refrigerant, and low return air temperature, there is a risk of liquid hammering on the suction valve plate of compressor 9. The refrigeration equipment also includes a return air heating mechanism 101, which is disposed on the return air pipeline 10 and is capable of heating the return air pipeline 10. When the first compartment 71 is in the refrigeration mode, if the temperature of the first compartment 71 exceeds the set temperature and cooling is required, the first evaporator 3 corresponding to the first compartment 71 will have an excessive amount of system refrigerant and a low return air temperature, as the overall system cooling capacity needs to meet the full freezing mode. Therefore, the return air heating mechanism 101 is provided to prevent damage to the compressor 9 from liquid refrigerant entrained in the suction air of the compressor 9, without affecting the cooling efficiency of the evaporator. The compressor 9 is turned on and the return air heating mechanism 101 is turned on to increase the return air pipe temperature. When the first chamber 71 reaches the set temperature, the compressor 9 is stopped and the heater is turned off, which perfectly solves the problem of liquid hammer on the suction valve caused by low return air temperature.

[0043] Among them, the refrigeration equipment can obtain the real-time temperature T1 of the first chamber 71 and the real-time temperature T2 of the second chamber 72, and compare T1 with the target temperature value T3 of the first chamber 71, and compare T2 with the target temperature value T4 of the second chamber 72; if T1>T3 and T2≤T4, it indicates that the first chamber 71 needs to be refrigerated and the second chamber 72 does not need to be refrigerated. At this time, the exhaust gas of the compressor 9 needs to be sent to the first evaporator 3 for heat exchange, and then flow through the second evaporator 5 and return to the compressor 9. At this time, the second evaporator 5 will still refrigerate the second chamber 72 due to the flow of refrigerant. Therefore, the compartment heating mechanism 6 is turned on, and the compartment heating mechanism 6 is used to compensate the temperature of the second chamber 72 to avoid the temperature of the second chamber 72 being affected by the refrigeration system where the compressor 9 is located, thereby ensuring the preservation effect of the second chamber 72 on the items.

[0044] Preferably, the evaporator absorbs heat to evaporate the low-temperature and low-pressure liquid refrigerant into a low-temperature and low-pressure gas. The refrigerant coming out of the evaporator is generally low-temperature refrigerant vapor. When the amount of refrigerant is large, the temperature of the entrained liquid low-temperature refrigerant will be lower. For this reason, the return air pipeline 10 is arranged on one side of the first throttling mechanism 41, the second throttling mechanism 42 and / or the third throttling mechanism 43, so that the return air pipeline 10 can exchange heat with at least one of the first throttling mechanism 41, the second throttling mechanism 42 and the third throttling mechanism 43, and the refrigerant in the return air pipeline 10 can exchange heat with the refrigerant flowing through the first throttling mechanism 41 or the refrigerant flowing through the second throttling mechanism 42 or the refrigerant flowing through the third throttling mechanism 43, thereby recovering the refrigerant in the return air pipeline 10 and further cooling the refrigerant in the capillary tube, thereby increasing the supercooling degree and thereby improving the refrigeration efficiency of the refrigeration system.

[0045] The refrigeration device shown also includes a partition assembly, which is disposed within the housing 7 and divides the interior of the housing 7 into a first chamber 71 and a second chamber 72. The partition assembly separates the first chamber 71 and the second chamber 72, thereby preventing the transfer of cold energy. This ensures that the first chamber 71 and the second chamber 72 can each independently refrigerate or freeze food, thereby ensuring the operational reliability of the refrigeration device.

[0046] Wherein, the refrigeration equipment includes a refrigerator.

[0047] The refrigeration equipment has a full refrigeration mode:

[0048] When the refrigeration device is in the full refrigeration mode, the refrigerant inlet 21 is controlled to be connected to the first refrigerant outlet 22, and the refrigerant inlet 21 is disconnected from the second refrigerant outlet 23 and the third refrigerant outlet 24. The refrigerant discharged from the compressor 9 enters the valve assembly 2 after passing through the condenser 1, and flows out through the first refrigerant outlet 22. After being throttled by the first throttle mechanism 41, it enters the first evaporator 3. At this time, the first evaporator 3 cools the first chamber 71. Due to the large flow rate of the first throttle mechanism 41, the cooling effect of the first evaporator 3 on the first chamber 71 can only meet the refrigeration requirement. The refrigerant after heat exchange in the first evaporator 3 continues to flow into the second evaporator 5, and the second evaporator 5 can cool the second chamber 72. Since the refrigerant has already undergone heat exchange in the first evaporator 3, the cooling effect of the second evaporator 5 on the second chamber 72 can only meet the refrigeration requirement, thereby achieving the purpose of refrigerating both the first chamber 71 and the second chamber 72 in the refrigeration device.

[0049] When the refrigeration device is in full refrigeration mode, the real-time temperature T1 of the first chamber 71 and the real-time temperature T2 of the second chamber 72 can be compared with the first preset temperature TLC. If T1>TLC, the first evaporating fan 81 is controlled to operate; if T2>TLC, the second evaporating fan 82 is controlled to operate.

[0050] The refrigeration device has a first compartment 71 for refrigeration and a second compartment 72 for freezing:

[0051] When the refrigeration equipment is in the refrigeration mode of the first chamber 71 and the freezing mode of the second chamber 72, the refrigerant inlet 21 is controlled to be connected with the first refrigerant outlet 22, and the refrigerant inlet 21 is disconnected from the second refrigerant outlet 23 and the third refrigerant outlet 24. The refrigerant discharged from the compressor 9 enters the valve assembly 2 after passing through the condenser 1, and flows out through the first refrigerant outlet 22. After the throttling effect of the first throttling mechanism 41, it enters the first evaporator 3. At this time, the first evaporator 3 cools the first chamber 71. Due to the first throttling mechanism The flow rate of the flow mechanism 41 is relatively large. Therefore, the cooling effect of the first evaporator 3 on the first chamber 71 can only meet the refrigeration demand. The refrigerant after heat exchange in the first evaporator 3 continues to flow into the second evaporator 5, and the second evaporator 5 can cool the second chamber 72. Since the refrigerant has already undergone heat exchange in the first evaporator 3, it is necessary to increase the operating frequency of the compressor 9 at this time so that the refrigerant can meet the freezing demand when flowing through the second evaporator 5, thereby achieving the purpose of refrigerating the first chamber 71 and freezing the second chamber 72 in the refrigeration equipment.

[0052] When the refrigeration device is in a refrigeration mode with the first chamber 71 and the second chamber 72 in a freezing mode, a real-time temperature T1 of the first chamber 71 and a real-time temperature T2 of the second chamber 72 can be obtained, respectively, and T1 can be compared with a first preset temperature TLC, and T2 can be compared with a second preset temperature TLDa. If T1 ≤ TLC and T2 > TLDa, it indicates that the first chamber 71 has reached the set temperature and no longer requires refrigeration. The refrigerant inlet 21 is disconnected from the first refrigerant outlet 22, thereby connecting the refrigerant inlet 21 only to the third refrigerant outlet 24. At this time, the refrigerant from the compressor 9 enters the second evaporator 5 only through the third refrigerant outlet 24 for refrigeration. No refrigerant flows into the first evaporator 3, thereby stopping refrigeration of the first chamber 71.

[0053] The refrigeration equipment has a full freezing mode:

[0054] When the refrigeration device is in the full freezing mode, the refrigerant inlet 21 is controlled to be connected to the second refrigerant outlet 23 and the third refrigerant outlet 24, and the refrigerant inlet 21 is disconnected from the first refrigerant outlet 22. The refrigerant discharged from the compressor 9 enters the valve assembly 2 after passing through the condenser 1, and flows out through the second refrigerant outlet 23 and the third refrigerant outlet 24 after being diverted by the valve assembly 2. The refrigerant discharged from the second refrigerant outlet 23 enters the first evaporator 3 after the throttling effect of the second throttling mechanism 42. At this time, the first evaporator 3 cools the first chamber 71. Since the flow rate of the second throttling mechanism 42 is smaller than the flow rate of the first throttling mechanism 41, the cooling effect of the first evaporator 3 on the first chamber 71 can meet the freezing demand. The refrigerant after heat exchange in the first evaporator 3 continues to flow into the second evaporator 5. At the same time, the refrigerant discharged from the third refrigerant outlet 24 is throttled by the third throttling mechanism 43 and mixed with the refrigerant flowing from the first evaporator 3 to the second evaporator 5, and then flows into the second evaporator 5 together. The second evaporator 5 can refrigerate the second chamber 72. Since part of the refrigerant is directly sent to the second evaporator 5 through the third throttling mechanism 43, the second evaporator 5 meets the freezing demand, thereby achieving the purpose of freezing both the first chamber 71 and the second chamber 72 in the refrigeration equipment.

[0055] When the refrigeration device is in the full freezing mode, the real-time temperature T1 of the first chamber 71 and the real-time temperature T2 of the second chamber 72 are obtained, and T1 is compared with the third preset temperature TLDb, and T2 is compared with the fourth preset temperature TLDc. If T1 ≤ TLDb and T2 > TLDc, it indicates that the first chamber 71 has reached the set temperature and does not need to be cooled. The refrigerant inlet 21 is disconnected from the second refrigerant outlet 23, and the refrigerant inlet 21 is disconnected from the second refrigerant outlet 23, and the refrigerant inlet 21 is connected to the third refrigerant outlet 24.

[0056] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A refrigeration device, characterized in that: include: Condenser (1); A valve assembly (2), the valve assembly (2) having a refrigerant inlet (21), a first refrigerant outlet (22), a second refrigerant outlet (23) and a third refrigerant outlet (24), the refrigerant inlet (21) being in communication with the condenser (1); A first evaporator (3), wherein the first evaporation inlet (31) and the first evaporation outlet (32) are provided on the first evaporation inlet (31), the first evaporation inlet (31) is connected to the first refrigerant outlet (22) through a first throttling mechanism (41), and the first evaporation inlet (31) is connected to the second refrigerant outlet (23) through a second throttling mechanism (42), and the flow rate of the first throttling mechanism (41) is greater than the flow rate of the second throttling mechanism (42); A second evaporator (5), wherein the second evaporation inlet (51) is provided on the second evaporation inlet (51), the second evaporation inlet (51) is connected to the third refrigerant outlet (24) through a third throttling mechanism (43), and the first evaporation outlet (32) is connected to the second evaporation inlet (51); The compartment heating mechanism (6) is arranged in the same compartment as the second evaporator (5).

2. The refrigeration equipment according to claim 1, characterized in that: The refrigeration device further comprises a shell (7), wherein a first compartment (71) and a second compartment (72) are formed in the shell (7), the first evaporator (3) is located in the first compartment (71), and the second evaporator (5) and the compartment heater are both located in the second compartment (72).

3. The refrigeration equipment according to claim 2, characterized in that: The refrigeration equipment further comprises a first evaporation fan (81) and a second evaporation fan (82), wherein the first evaporation fan (81) is arranged on one side of the first evaporator (3), and the first evaporation fan (81) is capable of allowing gas to pass through the first evaporator (3), and the second evaporation fan (82) is arranged on one side of the second evaporator (5), and the second evaporation fan (82) is capable of allowing gas to pass through the second evaporator (5).

4. The refrigeration equipment according to claim 1, characterized in that: The refrigeration equipment further comprises a compressor (9), and the second evaporator (5) has a second evaporation outlet, which is connected to the compressor (9) via a return air pipeline (10).

5. The refrigeration equipment according to claim 4, characterized in that: The refrigeration equipment further comprises a return air heating mechanism (101), the return air heating mechanism (101) being arranged on the return air pipeline (10), and the return air heating mechanism (101) being capable of heating the return air pipeline (10).

6. The refrigeration equipment according to claim 5, characterized in that: The return air pipeline (10) is capable of exchanging heat with at least one of the first throttling mechanism (41), the second throttling mechanism (42), and the third throttling mechanism (43).

7. The refrigeration equipment according to claim 2, characterized in that: The refrigeration device further comprises a partition assembly, which is arranged in the shell (7) and separates the interior of the shell (7) into the first chamber (71) and the second chamber (72).

8. The refrigeration equipment according to claim 1, characterized in that: The refrigeration equipment includes a refrigerator.

9. The refrigeration equipment according to claim 1, characterized in that: The refrigeration equipment has a full refrigeration mode: When the refrigeration device is in the full refrigeration mode, the refrigerant inlet (21) is controlled to be connected to the first refrigerant outlet (22), and the refrigerant inlet (21) is disconnected from the second refrigerant outlet (23) and the third refrigerant outlet (24).

10. The refrigeration equipment according to claim 1, characterized in that: The refrigeration device has a first compartment (71) for refrigeration and a second compartment (72) for freezing: When the refrigeration device is in a refrigeration mode with the first compartment (71) being refrigerated and the second compartment (72) being frozen, the refrigerant inlet (21) is controlled to be connected to the first refrigerant outlet (22), and the refrigerant inlet (21) is disconnected from the second refrigerant outlet (23) and the third refrigerant outlet (24).

11. The refrigeration equipment according to claim 1, characterized in that: The refrigeration equipment has a full freezing mode: When the refrigeration device is in the full freezing mode, the refrigerant inlet (21) is controlled to be connected to the second refrigerant outlet (23) and the third refrigerant outlet (24), and the refrigerant inlet (21) is disconnected from the first refrigerant outlet (22).

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