Cold and hot cabinet

Abstract

The utility model relates to the technical field of household appliances, in particular to a cold and hot cabinet. The cold and hot cabinet comprises a box body, a refrigerant circulating flow path and a control unit. The box body defines a storage chamber, an air duct and a compressor cabin. The refrigerant circulating flow path comprises a compressor, a reversing valve, a first heat exchanger and a second heat exchanger which are connected through a refrigerant pipeline, the first heat exchanger is arranged in the air duct, and the compressor and the second heat exchanger are arranged in the compressor cabin; the control unit is connected with the reversing valve and used for controlling work of the reversing valve so as to control the flowing direction of the refrigerant in the refrigerant circulation flow path. Wherein the control unit is configured to control a refrigerant to flow through the first heat exchanger and then flow through the second heat exchanger when the cold and hot cabinet needs to heat; when the cold and hot cabinet needs refrigeration, a refrigerant is controlled to flow through the second heat exchanger and then flow through the first heat exchanger. Refrigerating and heating of the cold and hot cabinet share one set of refrigerant circulating flow path, the refrigerating or heating function can be achieved by changing the flowing direction of the refrigerant, energy consumption is reduced, and energy conservation and emission reduction are achieved.

Description

Technical Field

[0001] The present application relates to the field of household appliance technology, and in particular to a cold and hot cabinet. Background Art

[0002] At present, the function of refrigerators is to refrigerate frozen food and beverages in hot summer. However, in other seasons, especially in winter, refrigerators only have a refrigeration function and cannot meet people's needs.

[0003] Therefore, more and more businesses choose to replace refrigerators with dual-temperature zone cold and hot cabinets. Cold and hot cabinets are cabinets with both cooling and heating functions.

[0004] How to achieve low energy consumption of hot and cold cabinets is an urgent problem to be solved.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0006] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0007] The embodiment of the present disclosure provides a cold and hot cabinet, so that the cold and hot cabinet can reduce energy consumption when working, thereby achieving energy saving and emission reduction.

[0008] According to the embodiment of the present disclosure, a hot and cold cabinet is provided, including a cabinet, a refrigerant circulation flow path and a control unit, wherein the cabinet defines a storage compartment, an air duct and a compressor compartment; the refrigerant circulation flow path includes a compressor, a reversing valve, a first heat exchanger and a second heat exchanger connected by a refrigerant pipeline, wherein the first heat exchanger is arranged in the air duct, and the compressor and the second heat exchanger are arranged in the compressor compartment; the control unit is connected to the reversing valve, and is used to control the operation of the reversing valve to control the flow direction of the refrigerant in the refrigerant circulation flow path; wherein the control unit is configured to control the refrigerant to flow through the first heat exchanger first and then through the second heat exchanger when the hot and cold cabinet needs to be heated; and to control the refrigerant to flow through the second heat exchanger first and then through the first heat exchanger when the hot and cold cabinet needs to be cooled.

[0009] Optionally, the hot and cold cabinet further includes a heating device, which is disposed in the air duct and connected to a control unit, and the control unit is configured to control the heating device to be turned on or off.

[0010] Optionally, the heating device and the first heat exchanger are arranged in sequence along the air flow direction in the air duct.

[0011] Optionally, the air duct is provided with a first air outlet, the air duct and the storage compartment are connected through the first air outlet, the hot and cold cabinet further comprises an air outlet baffle, the air outlet baffle is provided at the first air outlet, and can move between a first position covering the first air outlet and a second position not covering the first air outlet; wherein the first air outlet is provided corresponding to the heating device, when the control unit controls the heating device to be turned on, the air outlet baffle is located at the second position; when the control unit controls the heating device to be turned off, the air outlet baffle is located at the first position.

[0012] Optionally, the hot and cold cabinet also includes a motor and a transmission assembly, the motor is connected to the control unit; the transmission assembly is connected to both the motor and the air outlet baffle, so that the motor controls the air outlet baffle to move between the first position and the second position through the transmission assembly.

[0013] Optionally, the transmission assembly includes a first rotating shaft, a gear and a second rotating shaft, the first rotating shaft is connected to the air outlet baffle; the gear is connected to the first rotating shaft; the second rotating shaft is connected between the motor and the gear, and is meshed with the gear, and is connected to the motor drive; wherein the motor drives the second rotating shaft to rotate, the second rotating shaft drives the gear to rotate, and the gear drives the first rotating shaft to rotate to drive the air outlet baffle to move.

[0014] Optionally, the cold and hot cabinet further includes a bearing, which is disposed in the housing; wherein the first rotating shaft is connected to an inner ring of the bearing and rotates relative to an outer ring of the bearing.

[0015] Optionally, the air duct is also provided with a second air outlet, and the air duct and the storage compartment are connected through the second air outlet; the hot and cold cabinet also includes a fan, which is arranged in the air duct and is used to drive air to flow to the first heat exchanger, and flow out from the second air outlet after heat exchange with the first heat exchanger.

[0016] Optionally, the first air outlet and the second air outlet are arranged in sequence along the air flow direction in the air duct.

[0017] Optionally, the fan and the heating device are arranged in sequence along the air flow direction in the air duct.

[0018] The hot and cold cabinet provided in the embodiments of the present disclosure can achieve the following technical effects:

[0019] The refrigerant circulation flow path includes a compressor, a reversing valve, a first heat exchanger and a second heat exchanger connected by a refrigerant pipeline. The first heat exchanger is arranged in the air duct, and the compressor and the second heat exchanger are arranged in the compressor cabin. The control unit controls the reversing valve to work, so that the reversing valve controls the refrigerant to flow through the first heat exchanger first, and then through the second heat exchanger, so as to achieve heating of the cold and hot cabinet; the reversing valve controls the refrigerant to flow through the second heat exchanger first, and then through the first heat exchanger, so as to achieve cooling of the cold and hot cabinet. The cooling and heating of the cold and hot cabinet share a set of refrigerant circulation flow paths. The cooling or heating function can be achieved by changing the flow direction of the refrigerant, which effectively reduces the energy consumption of the cold and hot cabinet when working, and achieves the effect of energy saving and emission reduction.

[0020] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0022] Figure 1 is a schematic diagram of the structure of a cold and hot cabinet provided by an embodiment of the present disclosure;

[0023] Figure 2 yes Figure 1 Middle AA section view;

[0024] Figure 3 It is a schematic diagram of a refrigerant circulation circuit of a hot and cold cabinet under refrigeration conditions provided by an embodiment of the present disclosure;

[0025] Figure 4 is a schematic diagram of a refrigerant circulation circuit of a cold and hot cabinet under heating conditions provided by an embodiment of the present disclosure;

[0026] Figure 5 yes Figure 2 A partial structural schematic diagram of , wherein the air outlet baffle is located at a first position;

[0027] Figure 6 yes Figure 2 A schematic diagram of a partial structure of , wherein the air outlet baffle is located at a second position;

[0028] Figure 7 is a structural schematic diagram of a cold and hot cabinet provided by an embodiment of the present disclosure from another perspective;

[0029] Figure 8 yes Figure 7 Enlarged schematic diagram at point A in the middle.

[0030] Reference numerals:

[0031] 10: storage compartment; 11: compressor cabin; 12: air duct; 121: air duct cover; 122: first air outlet; 123: second air outlet; 124: air outlet baffle; 13: motor; 14: first rotating shaft; 15: gear; 16: second rotating shaft;

[0032] 20: refrigerant circulation flow path; 21: refrigerant pipeline; 22: reversing valve; 221: first inlet; 222: first outlet; 223: first conversion port; 224: second conversion port; 23: compressor; 231: second inlet; 232: second outlet; 24: first heat exchanger; 25: second heat exchanger; 26: evaporating dish tube; 27: drying filter; 28: capillary tube;

[0033] 30: Heating device;

[0034] 40: fan; 41: first fan; 42: second fan. DETAILED DESCRIPTION

[0035] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0036] The terms "first", "second", etc. in the specification and claims of the disclosed embodiments and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate for the disclosed embodiments described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0037] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0038] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0039] Unless otherwise stated, the term "plurality" means two or more.

[0040] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0041] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0042] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0043] Hot and cold cabinets have both cooling and heating functions, and can meet user needs in a more diversified way, and are loved by more and more users. However, hot and cold cabinets have both cooling and heating functions, so they consume a lot of energy during operation, which is not conducive to energy conservation and emission reduction, and also increases the user's cost of use.

[0044] Combination Figures 1 to 8 As shown, a cold and hot cabinet provided by an embodiment of the present disclosure can reduce the energy consumption of the cold and hot cabinet and achieve energy saving and emission reduction.

[0045] Optionally, combined Figure 3 and Figure 4 As shown, the hot and cold cabinet includes a box body, a refrigerant circulation flow path 20 and a control unit, wherein the box body defines a storage compartment 10, an air duct 12 and a compressor cabin 11; the refrigerant circulation flow path 20 includes a compressor 23, a reversing valve 22, a first heat exchanger 24 and a second heat exchanger 25 connected by a refrigerant pipeline 21, wherein the first heat exchanger 24 is arranged in the air duct 12, and the compressor 23 and the second heat exchanger 25 are arranged in the compressor cabin 11; the control unit is connected to the reversing valve 22, and is used to control the operation of the reversing valve 22 to control the flow direction of the refrigerant in the refrigerant circulation flow path 20; wherein the control unit is configured to control the refrigerant to flow through the first heat exchanger 24 first and then through the second heat exchanger 25 when the hot and cold cabinet needs to be heated; and to control the refrigerant to flow through the second heat exchanger 25 first and then through the first heat exchanger 24 when the hot and cold cabinet needs to be cooled.

[0046] When the cold and hot cabinet is in refrigeration mode, the high-temperature and high-pressure refrigerant discharged by the compressor 23 first flows through the second heat exchanger 25, and then flows through the first heat exchanger 24. At this time, the second heat exchanger 25 is similar to a condenser and can achieve a heat dissipation function to reduce the temperature of the refrigerant. The first heat exchanger 24 is similar to an evaporator, and the refrigerant flows from the second heat exchanger 25 to the first heat exchanger 24, evaporates and absorbs ambient heat to achieve refrigeration.

[0047] When the cold and hot cabinet is in heating condition, the high-temperature and high-pressure refrigerant discharged by the compressor 23 first flows through the first heat exchanger 24, and then flows through the second heat exchanger 25. At this time, the first heat exchanger 24 is similar to a condenser, and can realize the heat dissipation function, and exchanges heat with the airflow in the storage compartment 10 to realize the cabinet heating. The second heat exchanger 25 is used to exchange heat with the airflow outside the cabinet.

[0048] Optionally, the reversing valve 22 is a four-way solenoid valve. The four-way solenoid valve has a first inlet 221, a first outlet 222, a first conversion port 223, and a second conversion port 224. The compressor 23 has a second inlet 231 and a second outlet 232. The first inlet 221 and the first outlet 222 of the four-way solenoid valve are respectively connected to the second outlet 232 and the second inlet 231 of the compressor 23, and the first conversion port 223 and the second conversion port 224 are respectively connected to the first heat exchanger 24 and the second heat exchanger 25.

[0049] The four-way solenoid valve is a control valve with four oil ports and is connected to the control unit.

[0050] When the hot and cold cabinet needs to be cooled, the high-temperature and high-pressure refrigerant discharged by the compressor 23 flows through the four-way solenoid valve, and the control unit controls the four-way solenoid valve to make the refrigerant flow out from the second conversion port 224 to the second heat exchanger 25, and then flow through the first heat exchanger 24, and flow back to the compressor 23 from the first conversion port 223; when the hot and cold cabinet needs to be heated, the high-temperature and high-pressure refrigerant discharged by the compressor 23 flows through the four-way solenoid valve, and the control unit controls the four-way solenoid valve to make the refrigerant flow out from the first conversion port 223 to the first heat exchanger 24, and then flow through the second heat exchanger 25, and flow back to the compressor 23 from the second conversion port 224.

[0051] According to the disclosed embodiment, the cooling and heating of the cold and hot cabinets share a set of refrigerant circulation flow path 20. By changing the flow direction of the refrigerant by the reversing valve 22, the function conversion of the cold and hot cabinets for cooling and heating can be realized, energy consumption can be reduced, and energy saving and emission reduction can be achieved.

[0052] Optionally, combined Figure 2 As shown, the cold and hot cabinet further includes a heating device 30, which is disposed in the air duct 12 and connected to a control unit. The control unit is configured to control the heating device 30 to be turned on or off.

[0053] Optionally, the heating device 30 includes a heating wire, a resistance heater, or the like.

[0054] The heating device 30 is connected to the control unit. When the user does not have a high demand for heat in the cold and hot cabinet, the control unit controls the heating device 30 to be turned off, and the cold and hot cabinet is heated only by the first heat exchanger 24. When the user has a high demand for heat in the cold and hot cabinet, the control unit controls the heating device 30 to be turned on, and the cold and hot cabinet is heated simultaneously by the heating device 30 and the first heat exchanger 24. In this way, the heating mode of the cold and hot cabinet can be enriched. In the mode where the heating device 30 and the first heat exchanger 24 are heated simultaneously, because the first heat exchanger 24 plays a role, a low-power heating device 30 can be used, thereby reducing the energy consumption of the cold and hot cabinet.

[0055] Optionally, the heating device 30 and the first heat exchanger 24 are arranged in sequence along the air flow direction in the air duct 12 .

[0056] Along the air flow direction in the air duct 12 , the air flow first passes through the heating device 30 and then passes through the first heat exchanger 24 .

[0057] The first heat exchanger 24 and the second heat exchanger 25 are connected through the refrigerant pipeline 21. The heating device 30 and the first heat exchanger 24 are arranged in sequence along the air flow direction in the air duct 12, that is, the first heat exchanger 24 is arranged between the heating device 30 and the second heat exchanger 25. The first heat exchanger 24 and the second heat exchanger 25 can be arranged close to each other, reducing the distance between the first heat exchanger 24 and the second heat exchanger 25, thereby optimizing the internal space layout of the cold and hot cabinet and improving the volume ratio of the cold and hot cabinet.

[0058] In addition, in the mode where the first heat exchanger 24 of the cold and hot cabinet and the heating device 30 are heating at the same time, at least part of the airflow in the air duct 12 first flows through the heating device 30, and after heat exchange with the heating device 30, the hot airflow flows through the first heat exchanger 24, which is beneficial to improve the heating effect of the first heat exchanger 24.

[0059] Optionally, combined Figure 2 , Figure 5 and Figure 6 As shown, the air duct 12 is provided with a first air outlet 122, and the air duct 12 and the storage compartment 10 are connected through the first air outlet 122. The cold and hot cabinet also includes an air outlet baffle 124, which is provided at the first air outlet 122 and can move between a first position where the first air outlet 122 is covered and a second position where the first air outlet 122 is not covered; wherein the first air outlet 122 is provided corresponding to the heating device 30, and when the control unit controls the heating device 30 to be turned on, the air outlet baffle 124 is located at the second position, Figure 6 When the control unit controls the heating device 30 to be turned off, the air outlet baffle 124 is located in the first position, Figure 5 shown.

[0060] When the cold and hot cabinet is heating, by setting the first air outlet 122 and the air outlet baffle 124, when the heating device 30 is turned on, the air outlet baffle 124 is located in the second position, and part of the airflow can be discharged from the first air outlet 122 to the storage compartment 10 after heat exchange with the heating device 30. When the heating device 30 is turned off, the air outlet baffle 124 is located in the first position, and the air outlet baffle 124 covers the first air outlet 122, so that the airflow cannot be discharged from the first air outlet 122, and the normal temperature airflow that has not achieved heat exchange is prevented from being discharged from the first air outlet 122 to the storage compartment 10, affecting the heating effect of the cold and hot cabinet.

[0061] When the hot and cold cabinets are cooling, the position of the air outlet baffle 124 can be controlled according to user needs. When the air outlet baffle 124 is in the first position, the first air outlet 122 is covered to reduce the cooling effect, which can meet the needs of users who do not need too much cooling; when the air outlet baffle 124 is in the second position, the first air outlet 122 is opened to increase the exhaust volume and improve the cooling effect, which can meet the needs of users to achieve rapid cooling in a short time.

[0062] Optionally, combined Figure 7 and Figure 8 As shown, the hot and cold cabinet also includes a motor 13 and a transmission assembly, the motor 13 is connected to the control unit; the transmission assembly is connected to both the motor 13 and the air outlet baffle 124, so that the motor 13 controls the air outlet baffle 124 to move between the first position and the second position through the transmission assembly.

[0063] The control unit is connected to the motor 13 , and the motor 13 is connected to the air outlet baffle 124 via a transmission assembly, so as to control the movement of the air outlet baffle 124 .

[0064] Optionally, the transmission assembly includes a first rotating shaft 14, a gear 15 and a second rotating shaft 16, the first rotating shaft 14 is connected to the air outlet baffle 124; the gear 15 is connected to the first rotating shaft 14; the second rotating shaft 16 is connected between the motor 13 and the gear 15, and is meshed with the gear 15, and is drivingly connected to the motor 13; wherein the motor 13 drives the second rotating shaft 16 to rotate, the second rotating shaft 16 drives the gear 15 to rotate, and the gear 15 drives the first rotating shaft 14 to rotate, so as to drive the air outlet baffle 124 to move.

[0065] Optionally, combined Figure 1As shown, the cold and hot cabinet includes an air duct cover plate 121, which is arranged between the air duct 12 and the storage compartment 10, and the air duct cover plate 121 and the inner tank define the air duct 12. The first air outlet 122 is opened on the air duct cover plate 121. When the air outlet baffle plate 124 is in the first position, the air outlet baffle plate 124 covers the first air outlet 122, and the plane where the air outlet baffle plate 124 is located is parallel to the plane where the air duct cover plate 121 is located. The air duct cover plate 121 is provided with an extension plate in the direction away from the storage compartment 10, and the number of the extension plates is two, and the two extension plates are arranged oppositely along the width direction of the air duct cover plate 121.

[0066] Optionally, the extension plate is provided with a slot, and the first rotating shaft 14 is inserted into the slot and can rotate relative to the inner wall surface of the slot. The first rotating shaft 14 is connected to the air outlet baffle 124, so that when the first rotating shaft 14 rotates relative to the inner wall surface of the slot, the air outlet baffle 124 is driven to move between the first position and the second position.

[0067] Optionally, the gear 15 is coaxially arranged and fixedly connected with the first rotating shaft 14 . The second rotating shaft 16 is drivingly connected with the motor 13 and meshes with the gear 15 .

[0068] The control unit controls the motor 13 to operate so that the motor 13 drives the second rotating shaft 16 to rotate, so that the second rotating shaft 16 drives the gear 15 to rotate, thereby driving the first rotating shaft 14 to rotate, and the first rotating shaft 14 drives the air outlet baffle 124 to move between the first position and the second position, so as to facilitate the opening or closing of the first air outlet 122.

[0069] Optionally, the cold and hot cabinet further includes a bearing, which is disposed in the housing; wherein the first rotating shaft 14 is connected to the inner ring of the bearing and rotates relative to the outer ring of the bearing.

[0070] The bearing is arranged in the slot, and both ends of the first rotating shaft 14 are inserted into the bearing, connected to the inner ring of the bearing, and rotate relative to the outer ring of the bearing, so that the first rotating shaft 14 rotates more smoothly, and the air outlet baffle 124 moves between the first position and the second position more smoothly.

[0071] Optionally, combined Figure 2 , Figure 5 and Figure 6 As shown, the air duct 12 is also provided with a second air outlet 123, and the air duct 12 and the storage compartment 10 are connected through the second air outlet 123; the hot and cold cabinet also includes a fan 40, which is arranged in the air duct 12 and is used to drive air to flow to the first heat exchanger 24, and flow out from the second air outlet 123 after heat exchange with the first heat exchanger 24.

[0072] Optionally, the fan 40 includes a first fan 41 and a second fan 42. The first fan 41 is arranged corresponding to the first heat exchanger 24, and is used to drive air to flow to the first heat exchanger 24, and is discharged from the second air outlet 123 to the storage compartment 10 after heat exchange with the first heat exchanger 24. The second fan 42 is arranged corresponding to the second heat exchanger 25, and is used to drive the airflow outside the box to exchange heat with the second heat exchanger 25 and then be discharged from the box.

[0073] Optionally, the compressor cabin 11 is provided with an exhaust port, so that the second heat exchanger 25 can exchange heat with the air flow outside the box body through the exhaust port.

[0074] Optionally, along the air flow direction in the air duct 12 , the first air outlet 122 and the second air outlet 123 are arranged in sequence.

[0075] The second air outlet 123 is arranged corresponding to the first heat exchanger 24. In the heating mode of the cold and hot cabinet, when the air outlet baffle 124 is in the second position, the first air outlet 122 is in the open state, and the first fan 41 drives the airflow to flow in the air duct 12, first flows through the heating device 30, and after heat exchange with the heating device 30, part of the airflow is discharged from the first air outlet 122 to the storage compartment 10, and the other part of the airflow flows through the first heat exchanger 24, and after heat exchange with the first heat exchanger 24, it is discharged from the second air outlet 123 to the storage compartment 10. In this way, the hot air flow can be discharged from the first air outlet 122 and the second air outlet 123 at the same time. Figure 6 The direction indicated by the arrow is the airflow direction, which improves the heating effect. In the cooling mode, the cold airflow is discharged from the first air outlet 122 and the second air outlet 123 at the same time, which also improves the cooling effect of the cold and hot cabinets.

[0076] When the air outlet baffle 124 is in the first position, the first air outlet 122 is closed, and the first fan 41 drives the air flow to flow in the air duct 12. The air flow flows through the first heat exchanger 24, and is discharged from the second air outlet 123 to the storage compartment 10 after heat exchange with the first heat exchanger 24. Figure 5 The direction indicated by the arrow is the airflow direction.

[0077] Optionally, along the air flow direction in the air duct 12, the first fan 41 and the heating device 30 are arranged in sequence.

[0078] The first fan 41 and the heating device 30 are arranged in sequence, so that the airflow generated by the first fan 41 can flow to the heating device 30, and after heat exchange with the heating device 30, it is discharged from the first air outlet 122 to the storage compartment 10 to ensure the heating effect of the cold and hot cabinets.

[0079] Optionally, combined Figure 7 As shown, the second fan 42 is disposed in the compressor cabin 11, and is arranged corresponding to the second heat exchanger 25, so as to drive the airflow outside the box to exchange heat with the second heat exchanger 25 and then be discharged outside the box.

[0080] In the heating mode of the cold and hot cabinet, the second heat exchanger 25 is equivalent to an evaporator. The surface of the second heat exchanger 25 is prone to frost due to the temperature difference. By setting the second fan 42, the heat of the compressor 23 can also be transferred to the second heat exchanger 25 to achieve surface defrosting of the second heat exchanger 25.

[0081] Optionally, combined Figure 3 and Figure 4 As shown, the refrigerant circulation flow path 20 further includes an evaporator tube 26 connected through the refrigerant pipeline 21 , and the evaporator tube 26 is disposed between the compressor 23 and the second heat exchanger 25 .

[0082] The cold and hot cabinets will generate condensed water during operation, and the condensed water will be discharged to the evaporating dish. When the high-temperature refrigerant discharged by the compressor 23 passes through the evaporating dish tube 26, it is helpful to accelerate the evaporation of the condensed water.

[0083] Optionally, the refrigerant circulation flow path 20 further includes a drying filter 27 connected through the refrigerant pipeline 21 , and the drying filter 27 is disposed between the first heat exchanger 24 and the second heat exchanger 25 .

[0084] During the refrigeration process of the cold and hot cabinets, the drying filter 27 plays a role in filtering impurities and dust, absorbing residual moisture in the refrigerant pipeline 21, preventing ice blockage, and reducing the corrosion of moisture to the first heat exchanger 24, thereby ensuring that the refrigerant is clean and dry.

[0085] Optionally, the refrigerant circulation flow path 20 further includes a capillary tube 28 connected through the refrigerant pipeline 21, and the capillary tube 28 is arranged between the first heat exchanger 24 and the second heat exchanger 25 to achieve the function of regulating the refrigerant flow and throttling and reducing the pressure.

[0086] The hot and cold cabinet provided in the embodiments of the present disclosure can achieve the following technical effects:

[0087] The refrigerant circulation flow path 20 includes a compressor 23, a reversing valve 22, a first heat exchanger 24 and a second heat exchanger 25 connected by a refrigerant pipeline 21. The first heat exchanger 24 is arranged in the air duct 12, and the compressor 23 and the second heat exchanger 25 are arranged in the compressor cabin 11. The control unit controls the reversing valve 22 to work, so that the reversing valve 22 controls the refrigerant to flow through the first heat exchanger 24 first, and then through the second heat exchanger 25, so as to achieve heating of the cold and hot cabinet; the reversing valve 22 controls the refrigerant to flow through the second heat exchanger 25 first, and then through the first heat exchanger 24, so as to achieve cooling of the cold and hot cabinet. The cooling and heating of the cold and hot cabinet share a set of refrigerant circulation flow paths 20. The heating function can be achieved by changing the flow direction of the refrigerant, reducing energy consumption and enriching the heating mode.

[0088] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A hot and cold cabinet, characterized in that: include: A box body, defining a storage compartment, an air duct and a compressor cabin; A refrigerant circulation circuit includes a compressor, a reversing valve, a first heat exchanger and a second heat exchanger connected by a refrigerant pipeline, wherein the first heat exchanger is arranged in the air duct, and the compressor and the second heat exchanger are arranged in the compressor cabin; A control unit is connected to the reversing valve and is used to control the operation of the reversing valve to control the flow direction of the refrigerant in the refrigerant circulation flow path; Among them, the control unit is configured to control the refrigerant to flow through the first heat exchanger first and then through the second heat exchanger when the cold and hot cabinet needs to be heated; when the cold and hot cabinet needs to be cooled, the control unit is configured to control the refrigerant to flow through the second heat exchanger first and then through the first heat exchanger.

2. The hot and cold cabinet according to claim 1, characterized in that: Also includes: The heating device is arranged in the air duct and connected to the control unit. The control unit is configured to control the heating device to be turned on or off.

3. The hot and cold cabinet according to claim 2, characterized in that: The heating device and the first heat exchanger are arranged in sequence along the air flow direction in the air duct.

4. The hot and cold cabinet according to claim 2, characterized in that: The air duct is provided with a first air outlet, and the air duct and the storage compartment are connected through the first air outlet; The cold and hot cabinet further includes: an air outlet baffle, which is disposed at the first air outlet and is capable of moving between a first position in which the first air outlet is covered and a second position in which the first air outlet is not covered; Among them, the first air outlet is set corresponding to the heating device. When the control unit controls the heating device to turn on, the air outlet baffle is located in the second position; when the control unit controls the heating device to turn off, the air outlet baffle is located in the first position.

5. The hot and cold cabinet according to claim 4, characterized in that: Also includes: A motor connected to the control unit; The transmission assembly is connected to the motor and the air outlet baffle, so that the motor controls the air outlet baffle to move between the first position and the second position through the transmission assembly.

6. The hot and cold cabinet according to claim 5, characterized in that: The transmission components include: A first rotating shaft connected to the air outlet baffle; a gear connected to the first rotating shaft; The second rotating shaft is connected between the motor and the gear, meshed with the gear, and driven by the motor; The motor drives the second rotating shaft to rotate, the second rotating shaft drives the gear to rotate, and the gear drives the first rotating shaft to rotate, so as to drive the air outlet baffle to move.

7. The hot and cold cabinet according to claim 6, characterized in that: Also includes: A bearing, arranged in the housing; The first rotating shaft is connected to the inner ring of the bearing and rotates relative to the outer ring of the bearing.

8. The hot and cold cabinet according to any one of claims 4 to 7, characterized in that: The air duct is also provided with a second air outlet, and the air duct and the storage compartment are connected through the second air outlet; The cold and hot cabinet also includes: a fan, which is arranged in the air duct and is used to drive air to flow to the first heat exchanger, and flows out from the second air outlet after heat exchange with the first heat exchanger.

9. The hot and cold cabinet according to claim 8, characterized in that: The first air outlet and the second air outlet are arranged in sequence along the air flow direction in the air duct.

10. The hot and cold cabinet according to claim 8, characterized in that: The fan and the heating device are arranged in sequence along the air flow direction in the air duct.

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