CN220624579U - Cold and hot cabinet - Google Patents

Abstract

The application relates to refrigeration plant technical field discloses a cold and hot cabinet, include: a first liner and a second liner which are arranged up and down are arranged in the shell, and a compressor cavity is defined between the second liner and a bottom plate of the shell; a first air duct is defined between the first air duct plate and a first back plate of the first inner container; the first evaporator is arranged in the first air duct and used for cooling air circulated between the inside of the first liner and the first air duct; the heating component is arranged in the first air duct and used for heating air circulated between the inside of the first liner and the first air duct; a second air duct is defined between the second air duct plate and a second back plate of the second inner container; the second evaporator is arranged in the second air duct and is connected with the first evaporator in parallel; the condenser is arranged in the compressor cavity and comprises a first condensing part and a second condensing part which are arranged in parallel, wherein the first condensing part is connected with the first evaporator in series, and the second condensing part is connected with the second evaporator in series; the solenoid valve is connected between the compressor and the condenser. The cold and hot cabinet can reduce energy consumption.

Description

Cold and hot cabinet

Technical Field

The application relates to the technical field of refrigeration equipment, for example, to a cold and hot cabinet.

Background

Current single compartment freezers or refrigerated cabinets can only function individually for freezing or refrigeration. In hot summer, the freezer or the refrigerator can indeed meet the requirements of people on frozen foods or drinks and the like. However, during other seasons, particularly winter, a freezer with only a single function is often left on its shelf and is used again after the weather is warmed. The reason for this is that the cold and hot cabinet has single function and can not be heated, and is especially prominent for some fast food merchants and shops and stores selling various hot drinks and hot foods.

The refrigerator disclosed in the related art includes a main heat insulating plate, an auxiliary heat insulating plate, and a heating module. The auxiliary heat insulation plate is rotatably connected to the front edge of the main heat insulation plate, and the heating module is fixed to the main heat insulation plate and located on the first surface of the main heat insulation plate.

When the main heat insulation plate and the auxiliary heat insulation plate are flush, the heating module heats the heating cavity, and the refrigerating cavity is kept in a refrigerating state by utilizing the refrigerating loop; when heating is not needed, the heating module can be closed, and the auxiliary heat insulation plate is folded to enable the cooling cavity to be communicated with the heating cavity.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

in the related art, when a heating module switches from a heating mode to a cooling mode, articles placed on an auxiliary heat insulation plate need to be taken down and put on other positions again, so that the time for opening a door body of a refrigerator is prolonged, the cold energy/heat loss of the refrigerator is serious, and the energy consumption is too high.

It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the present application and thus may include information that does not constitute prior art known to those of ordinary skill in the art.

Disclosure of Invention

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview, and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended as a prelude to the more detailed description that follows.

Embodiments of the present disclosure provide a cooling and heating cabinet to reduce energy consumption of the cooling and heating cabinet.

In some embodiments, the cold and hot cabinet includes a housing, a first air duct plate, a second air duct plate, a first evaporator, a heating assembly, a second evaporator, a condenser, and a solenoid valve. The shell is internally provided with a first liner and a second liner which are arranged up and down, a compressor cavity is defined between the second liner and a bottom plate of the shell, and a compressor is arranged in the compressor cavity; a first air duct is defined between the first air duct plate and a first back plate of the first liner; the first evaporator is arranged in the first air duct and is used for cooling air circulated between the inside of the first liner and the first air duct during operation; the heating assembly is arranged in the first air duct and is used for heating air circulated between the inside of the first liner and the first air duct when in operation; a second air duct plate is defined between the second air duct plate and a second back plate of the second liner; the second evaporator is arranged in the second air duct and connected with the first evaporator in parallel, and is used for cooling air circulating between the inside of the second liner and the second air duct; the condenser is arranged in the compressor cavity and comprises a first condensing part and a second condensing part which are arranged in parallel, wherein the first condensing part is connected with the first evaporator in series, and the second condensing part is connected with the second evaporator in series; and the electromagnetic valve is connected between the compressor and the condenser.

In some embodiments, the first condensing portion comprises a first condensing conduit and the second condensing portion comprises a second condensing conduit; the solenoid valve includes: an inlet connected to an exhaust end of the compressor; the first outlet is connected with the air inlet end of the first condensation pipeline; and the second outlet is connected with the air inlet end of the second condensation pipeline.

In some embodiments, the condenser further comprises: the condensing fin is sleeved on the peripheries of the first condensing pipeline and the second condensing pipeline.

In some embodiments, the cold and hot cabinet further comprises: the first drying filter is arranged at the liquid outlet end of the first condensing part; the second dry filter is arranged at the liquid outlet end of the second condensing part.

In some embodiments, the cold and hot cabinet further comprises: a first capillary tube connected between the first evaporator and the first dry filter; and a second capillary tube connected between the second evaporator and the second dry filter.

In some embodiments, the cold and hot cabinet further comprises: and the control valve is connected between the electromagnetic valve and the first condensing part and is used for conducting the first condensing part and the first evaporator when the first evaporator is in operation or closing the first condensing part and the first evaporator when the heating assembly is in operation.

In some embodiments, the cold and hot cabinet further comprises:

in some embodiments, the cold and hot cabinet heating assembly includes: the heat dissipation shell surrounds and defines an air flow channel with the same air flow direction; the heating element is arranged in the airflow channel.

In some embodiments, the heating assembly further comprises: the heat dissipation plates are arranged in the airflow channel in parallel and fixedly connected with the heat dissipation shell, and divide the airflow channel into a plurality of air channel spaces; the cooling fin is fixedly arranged in the air channel space, and the cooling fin is formed by bending in a roundabout way so as to divide the air channel space into a plurality of mutually independent heating air channels.

In some embodiments, the heating element comprises a PCT heating rod, penetrating the interior of the heat spreader plate.

In some embodiments, the heating element includes an electric heating wire, and is disposed through the heat dissipation plate, or is disposed attached to a side wall of the heat dissipation plate.

The cold and hot cabinet provided by the embodiment of the disclosure can realize the following technical effects:

the first inner container and the second inner container are arranged in the shell so as to adjust the temperature of the first storage cavity and the temperature of the second storage cavity respectively. The first evaporator and the heating component are arranged in a first air channel formed between a first back plate of the first inner container and the first air channel plate, and the second evaporator is arranged in a second air channel formed between a second back plate of the second inner container and the second air channel plate. When the first evaporator and the first condensing part are operated and the heating component is closed, the temperature of the first storage cavity can be reduced; heating of the first storage chamber can be achieved when the first evaporator and the first condensing portion are off and the heating assembly is in operation. Meanwhile, the second storage cavity can be cooled by the second evaporator and the second condensing part which are connected with the first evaporator in parallel. So, can realize the switching between cooling and heating in the first storing intracavity when the second storing chamber realizes the cooling to reduce the energy consumption of cold and hot cabinet, reduce energy loss. In addition, the solenoid valve is connected between compressor and condenser, can guarantee that the refrigerant that flows into in the solenoid valve is gaseous to guarantee that the refrigerant distribution of first condensation part and second condensation part is even, and then guarantee that the refrigerant that flows into first evaporimeter and second evaporimeter is even, guarantee the cooling rate of first evaporimeter and second evaporimeter.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which like reference numerals refer to similar elements, and in which:

FIG. 1 is a schematic diagram of a cooling and heating cabinet according to an embodiment of the present disclosure;

FIG. 2 is a schematic diagram of another cooling and heating cabinet according to an embodiment of the disclosure;

FIG. 3 is a schematic cross-sectional view of a hot and cold cabinet provided in an embodiment of the present disclosure;

FIG. 4 is a schematic cross-sectional view of another cold and hot cabinet provided by an embodiment of the present disclosure;

FIG. 5 is a schematic structural view of a heating assembly provided by an embodiment of the present disclosure;

fig. 6 is a schematic flow diagram of a refrigeration system of a cooling and heating cabinet according to an embodiment of the disclosure.

Reference numerals:

100. a housing; 110. a first liner; 111. a first storage cavity; 120. a second liner; 121. a second storage cavity; 130. a compressor chamber; 210. a first air duct plate; 220. a second air duct plate; 310. a first evaporator; 320. a second evaporator; 400. a heating assembly; 410. a heat dissipation housing; 420. a heating member; 430. a heat dissipation plate; 440. a heat sink; 441. a heating air duct; 500. a condenser; 510. a first condensing unit; 520. a second condensing unit; 610. an electromagnetic valve; 611. an inlet; 612. a first outlet; 613. a second outlet; 620. a control valve; 710. a first dry filter; 720. a second dry filter; 810. a first capillary; 820. a second capillary; 910. a first fan; 920. and a second fan.

Detailed Description

So that the manner in which the features and techniques of the disclosed embodiments can be understood in more detail, a more particular description of the embodiments of the disclosure, briefly summarized below, may be had by reference to the appended drawings, which are not intended to be limiting of the embodiments of the disclosure. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may still be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawing.

The terms first, second and the like in the description and in the claims of the embodiments of the disclosure and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe embodiments of the present disclosure. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are used primarily to better describe embodiments of the present disclosure and embodiments thereof and are not intended to limit the indicated device, element, or component to a particular orientation or to be constructed and operated in a particular orientation. Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the embodiments of the present disclosure will be understood by those of ordinary skill in the art in view of the specific circumstances.

In addition, the terms "disposed," "connected," "secured" and "affixed" are to be construed broadly. For example, "connected" may be in a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the embodiments of the present disclosure may be understood by those of ordinary skill in the art according to specific circumstances.

The term "plurality" means two or more, unless otherwise indicated.

In the embodiment of the present disclosure, the character "/" indicates that the front and rear objects are an or relationship. For example, A/B represents: a or B.

The term "and/or" is an associative relationship that describes an object, meaning that there may be three relationships. For example, a and/or B, represent: a or B, or, A and B.

It should be noted that, without conflict, the embodiments of the present disclosure and features of the embodiments may be combined with each other.

As shown in conjunction with fig. 1 to 6, the embodiment of the present disclosure provides a cold and hot cabinet including a case 100, a first air duct plate 210, a second air duct plate 220, a first evaporator 310, a second evaporator 320, a heating assembly 400, a condenser 500, and a solenoid valve 610. The housing 100 is provided therein with a first liner 110 and a second liner 120 arranged up and down. A compressor chamber 130 is defined between the second liner 120 and the floor of the housing 100. A compressor is disposed within the compressor chamber 130. A first air duct is defined between the first air duct plate 210 and the first back plate of the first liner 110. The first evaporator 310 is disposed in the first air duct. The first evaporator 310 is operative to cool air circulated between the interior of the first liner 110 and the first air duct. The heating assembly 400 is disposed in the first air duct. The heating assembly 400 is operative to heat air circulated between the interior of the first liner 110 and the first air duct. A second air duct is defined between the second air duct plate 220 and a second back plate of the second liner 120. The second evaporator 320 is disposed in the second air duct. The second evaporator 320 is connected in parallel with the first evaporator 310, and the second evaporator 320 is used for cooling air circulated between the inside of the second liner 120 and the second air duct. The condenser 500, disposed within the compressor chamber 130, includes a first condensing portion 510 and a second condensing portion 520 arranged in parallel. Wherein, the first condensing part 510 is connected in series with the first evaporator 310, and the second condensing part 520 is connected in series with the second evaporator 320. A solenoid valve 610 is connected between the compressor and the condenser 500.

The inside of the casing 100 is provided with a first inner container 110 and a second inner container 120 which are arranged up and down, wherein a first storage cavity 111 is defined in the inside of the first inner container 110, and a second storage cavity 121 is defined in the inside of the second inner container 120. By the arrangement, the air in the first storage cavity 111 and the air in the second storage cavity 121 can be circulated independently, and the mutual interference of air flows between the first storage cavity and the second storage cavity is avoided.

The first air duct board 210 is disposed in the first inner container 110, and forms a first air duct with the first back panel of the first inner container 110. The second air duct board 220 is disposed in the second inner container, and defines a second air duct with the second back panel of the second inner container 120. By the arrangement, the first air duct and the second air duct can be mutually independent, and air series flow between the first inner container 110 and the second inner container 120 is avoided, so that the cooling effect in the second storage cavity 121 is prevented from being influenced when the first storage cavity 111 is heated, and the operation efficiency of the cold and hot cabinet is improved.

Wherein, a first evaporator 310 and a heating component 400 are arranged in the first air channel, and a second evaporator 320 is arranged in the second air channel. In the case of the cold and hot cabinet power-on operation, the second evaporator 320 is always operated, and keeps the temperature of the air circulated between the second storage cavity 121 and the second air duct low; however, the first evaporator 310 and the heating assembly 400 are separately operated to cool the air circulated between the first storage chamber 111 and the first air duct when the first evaporator 310 is operated and the heating assembly 400 is turned off, or to heat the air circulated between the first storage chamber 111 and the first air duct when the heating assembly 400 is operated and the first evaporator 310 is turned off, respectively. By switching the operation states of the first evaporator 310 and the heating assembly 400, the heating or cooling of the first storage cavity 111 can be switched, so that the long-time opening of the cold and hot cabinet door body can be avoided, and further the loss of cold in the first storage cavity 111 and/or the second storage cavity 121 can be avoided. In addition, the heating assembly 400 and the first evaporator 310 share the first air duct, and a heating air duct or a cooling air duct is not required to be separately arranged, so that the cost is reduced, and the structural complexity of the cold and hot cabinet is reduced.

Optionally, a first fan 910 is disposed in the first air duct for powering the circulation of air between the first storage cavity 111 and the first air duct. Optionally, the heating assembly 400 is disposed near the first fan 910, so that the heating assembly 400 can avoid affecting the structure of the first evaporator 310 during operation.

Optionally, a second fan 920 is disposed in the second air duct for powering the circulation of air between the second storage cavity 121 and the second air duct.

Optionally, the cold and hot cabinet further comprises a condenser 500. The refrigerant may condense in the condenser 500 to release heat, and the gas-phase refrigerant having high temperature and high pressure becomes a liquid-phase refrigerant. At the outlet of the condenser, the refrigerant is not completely cooled to be in a liquid state, usually in a gas-liquid two-phase state, based on the instability of the gas-liquid two phases of the refrigerant, the pressure change at the inlet and the outlet of the two branches easily forms the condition that one branch refrigerant is excessively distributed and the other branch refrigerant is excessively distributed, so that the refrigerant distribution in the refrigeration process is also uncertain, and the refrigerant distribution of the first evaporator 310 and the second evaporator 320 is uneven. Therefore, when both the first evaporator 310 and the second evaporator 320 are operated, the temperature decrease rates in the first storage chamber 111 and the second storage chamber 121 are not uniform. That is, the refrigerant of the first evaporator 310 may be excessive and the refrigerant of the second evaporator 320 may be insufficient; alternatively, the refrigerant of the first evaporator 310 is too small, and the refrigerant of the second evaporator 320 is too large. To avoid this, the condenser 500 is provided with a first condensing part 510 and a second condensing part 520 independent from each other, and a solenoid valve 610 is provided at an inlet of the condenser 500. By connecting the first condensing part 510 and the second condensing part 520 with the solenoid valve 610, respectively, so that the gas-phase refrigerant is uniformly distributed to the first condensing part 510 and the second condensing part 520, and the refrigerant distribution of the first evaporator 310 and the second evaporator 320 is further realized.

Adopt the cold and hot cabinet that this disclosed embodiment provided, set up first inner bag and second inner bag in the casing to carry out the regulation of temperature to first storing chamber and second storing chamber respectively. The first evaporator and the heating component are arranged in a first air channel formed between a first back plate of the first inner container and the first air channel plate, and the second evaporator is arranged in a second air channel formed between a second back plate of the second inner container and the second air channel plate. When the first evaporator and the first condensing part are operated and the heating component is closed, the temperature of the first storage cavity can be reduced; heating of the first storage chamber can be achieved when the first evaporator and the first condensing portion are off and the heating assembly is in operation. Meanwhile, the second storage cavity can be cooled by the second evaporator and the second condensing part which are connected with the first evaporator in parallel. Therefore, when the second storage cavity is cooled, the switching between the refrigeration and the heating in the first storage cavity can be conveniently realized, so that the energy consumption of the cold and hot cabinet is reduced, and the energy loss is reduced. In addition, the solenoid valve is connected between compressor and condenser, can guarantee that the refrigerant that flows into in the solenoid valve is gaseous to guarantee that the refrigerant distribution of first condensation part and second condensation part is even, and then guarantee that the refrigerant that flows into first evaporimeter and second evaporimeter is even, guarantee the cooling rate of first evaporimeter and second evaporimeter.

In some embodiments, the first condensing portion 510 includes a first condensing line and the second condensing portion 520 includes a second condensing line. The solenoid valve 610 includes an inlet 611, a first outlet 612, and a second outlet 613. Inlet 611 is connected to the discharge end of the compressor. The first outlet 612 is connected to the inlet end of the first condensing line. The second outlet 613 is connected to the inlet end of the second condensing duct.

By connecting the inlet 611 of the solenoid valve 610 with the exhaust end of the compressor, the high-temperature and high-pressure gas discharged from the compressor can flow to the solenoid valve 610 first, the distribution of the gas-phase refrigerant is completed in the solenoid valve 610, then flows out of the first condensation part 510 through the first outlet 612, and flows out of the second condensation part 520 through the second outlet 613, so as to ensure that the refrigerant is uniformly distributed into the first condensation part 510 and the second condensation part 520, and further, the refrigerant distributed by the first evaporator 310 and the second evaporator 320 can be uniform.

Optionally, the first condensing portion 510 includes a first condensing line, and the second condensing portion 520 includes a second condensing line. Condenser 500 also includes condensing fins. The condensing fin is sleeved on the periphery of the first condensing pipeline and the second condensing pipeline.

Alternatively, the first condensing part 510 and the second condensing part 520 are provided independently and in parallel to each other so as to be connected in series with the first evaporator 310 and the second evaporator 320, respectively.

Optionally, the condensation fin is sleeved on the peripheries of the first condensation pipeline and the second condensation pipeline. That is, the first condensing part 510 and the second condensing part 520 share a set of condensing fins. Thus, on one hand, the cost can be reduced, on the other hand, the occupied space of the condenser 500 can be reduced, the arrangement and the installation of the condenser 500 in the compressor cavity 130 can be facilitated, and the installation difficulty can be reduced.

Optionally, the hot and cold cabinet further comprises a first dry filter 710 and a second dry filter 720. The first dry filter 710 is disposed at the liquid outlet end of the first condensing unit 510. The second dry filter 720 is disposed at the liquid outlet end of the second condensing unit 520.

Optionally, the first drier-filter 710 is used for filtering the refrigerant flowing to the first evaporator 310 to filter out the tangible dust carried by the refrigerant during the flowing process and adsorb the residual moisture of the refrigeration system. The first drier-filter 710 is used for filtering the refrigerant flowing to the first evaporator 310 to filter out the tangible dust carried by the refrigerant in the flowing process and adsorb the residual moisture of the refrigeration system.

Optionally, the hot and cold cabinet further comprises a first capillary tube 810 and a second capillary tube 820. The first capillary 810 is connected between the first evaporator 310 and the first dry filter 710. The second capillary tube 820 is connected between the second evaporator 320 and the second dry filter 720.

Optionally, the first capillary 810 is used to throttle and lower the refrigerant to the evaporation temperature of the first storage chamber 111, and the second capillary 820 is used to throttle and lower the refrigerant to the evaporation temperature of the second storage chamber 121.

In some embodiments, the cold and hot cabinet further includes a control valve 620. The control valve 620 is connected between the solenoid valve 610 and the first condensing portion 510. The control valve 620 is used to turn on the first condensing part 510 and the first evaporator 310 when the first evaporator 310 is operated, or to turn off the first condensing part 510 and the first evaporator 310 when the heating assembly 400 is operated.

Control of the first evaporator 310 can be achieved by the provision of the control valve 620. When the first storage chamber 111 needs to be heated, the control valve 620 is closed to close the inlet end of the first condensation portion 510, so that the refrigerant cannot circulate, and the first condensation portion 510 and the first evaporator 310 do not participate in the refrigeration cycle. At this time, the heating assembly 400 operates alone to achieve heating of the air. When the first storage cavity 111 needs to be cooled, the heating assembly 400 stops operating, and at this time, the control valve 620 is opened to conduct the first condensation portion 510, so that the refrigerant can flow into the first evaporator 310, thereby cooling the air flowing through.

Optionally, the heating assembly 400 includes a heat dissipating housing 410 and a heating member 420.

The heat dissipation case 410 encloses an air flow passage in the same direction as the air flow. The heating element 420 is disposed in the airflow channel.

The heat dissipation housing 410 defines an airflow channel with two open ends, wherein the extending direction of the airflow channel is the same as the flowing direction of the air in the first air channel, so as to avoid blocking the air. Optionally, the heat dissipation housing 410 is fixedly connected to a peripheral sidewall forming the first air channel, so as to ensure that air circulates from the air flow channel as much as possible, thereby achieving the purpose of heating. Optionally, the first air duct has a first air outlet and a first air return opening, and the air flows in a direction from the air return opening to the first air outlet.

Optionally, the heating element 420 is disposed in the airflow channel, which is advantageous for heating the air as it flows through the airflow channel.

Optionally, the heating assembly 400 further includes a plurality of heat dissipation plates 430 and heat dissipation fins 440.

The heat dissipation plates 430 are disposed in parallel in the airflow channel and fixedly connected to the heat dissipation housing 410. The plurality of heat dissipation plates 430 divide the air flow passage into a plurality of duct spaces. The heat sink 440 is fixedly disposed in the air channel space, and the heat sink 440 is formed by bending and bending to divide the air channel space into a plurality of independent heating air channels 441.

When the heating member 420 is operated, the heat radiating plate 430 may be conductively heated or radiation heated, thereby achieving a temperature rise of the heat radiating plate 430. Further, the heat dissipation plate 430 has a larger contact area with the air flowing therethrough, and can increase the speed of dissipating heat to the air, thereby improving the heating effect on the air. Optionally, the heat dissipation plate 430 extends along the length direction of the heat dissipation case 410 to reduce the installation difficulty and the installation cost.

The heat sink 440 formed by bending is fixedly disposed in the air channel space, thereby dividing the air channel space into a plurality of heating air channels 441 independent of each other. In this manner, the air may be dispersed into the plurality of heating air channels 441 while flowing through the heating assembly 400, thereby increasing the contact area of the air with the heating assembly 400 to further increase the heating efficiency of the air.

Alternatively, the heat dissipation plate 430 and the heat dissipation plate 440 are made of the same material. For example, the heat dissipation plate 430 and the heat dissipation plate 440 are aluminum or copper, etc.

In some embodiments, the heating element 420 comprises a PCT heating rod that is threaded into the interior of the heat sink 430.

Optionally, the PTC heater has the advantages of small thermal resistance and high heat exchange efficiency, and is an automatic constant-temperature and electricity-saving electric heater. After the temperature of the PTC heating element is increased to a certain temperature, the temperature of the wrapping surface can be maintained at a distance from the temperature, so that automatic constant temperature is realized. The heating member 420 includes a PTC heating rod, which may improve the safety of the heating assembly 400.

Wherein, the heating element 420 is disposed inside the heat dissipation plate 430. In this way, on the one hand, the heating effect on the heat radiating plate 430 can be improved, and on the other hand, the stability of the heating member 420 can be improved.

Optionally, the heating element 420 includes an electric heating wire, and is disposed through the heat dissipation plate 430 or attached to a side wall of the heat dissipation plate 430. The electric heating wire is easy to obtain and has high heating speed. In this way, the heating speed of the heating element 420 can be increased, so that heat transfer is facilitated, and the heating effect of the heating assembly 400 on the air flowing through is improved.

The above description and the drawings illustrate embodiments of the disclosure sufficiently to enable those skilled in the art to practice them. Other embodiments may include structural and other modifications. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in, or substituted for, those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the 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 (10)

1. A cold and hot cabinet, comprising:

the shell is internally provided with a first liner and a second liner which are arranged up and down, a compressor cavity is defined between the second liner and a bottom plate of the shell, and a compressor is arranged in the compressor cavity;

a first air duct is defined between the first air duct plate and a first back plate of the first liner;

the first evaporator is arranged in the first air duct and used for reducing the temperature of air circulating between the inside of the first liner and the first air duct when in operation;

the heating assembly is arranged in the first air duct and is used for heating air circulated between the inside of the first liner and the first air duct when in operation;

a second air duct plate is defined between the second air duct plate and a second back plate of the second liner;

the second evaporator is arranged in the second air duct and connected with the first evaporator in parallel, and is used for cooling air circulating between the inside of the second liner and the second air duct;

the condenser is arranged in the compressor cavity and comprises a first condensing part and a second condensing part which are arranged in parallel, wherein the first condensing part is connected with the first evaporator in series, and the second condensing part is connected with the second evaporator in series;

and the electromagnetic valve is connected between the compressor and the condenser.

2. The cabinet of claim 1, wherein the first condensing portion comprises a first condensing line and the second condensing portion comprises a second condensing line;

the solenoid valve includes:

an inlet connected to an exhaust end of the compressor;

the first outlet is connected with the air inlet end of the first condensation pipeline;

and the second outlet is connected with the air inlet end of the second condensation pipeline.

3. The cabinet of claim 2, wherein the condenser further comprises:

the condensing fin is sleeved on the peripheries of the first condensing pipeline and the second condensing pipeline.

4. The cold and hot cabinet according to claim 1, further comprising:

the first drying filter is arranged at the liquid outlet end of the first condensing part;

the second dry filter is arranged at the liquid outlet end of the second condensing part.

5. The cooling and heating cabinet according to claim 4, further comprising:

a first capillary tube connected between the first evaporator and the first dry filter;

and a second capillary tube connected between the second evaporator and the second dry filter.

6. The cold and hot cabinet according to claim 1, further comprising:

and the control valve is connected between the electromagnetic valve and the first condensing part and is used for conducting the first condensing part and the first evaporator when the first evaporator is in operation or closing the first condensing part and the first evaporator when the heating assembly is in operation.

7. A cold and hot cabinet according to any one of claims 1 to 6, wherein

The heat dissipation shell surrounds and defines an air flow channel with the same air flow direction;

the heating element is arranged in the airflow channel.

8. The cabinet of claim 7, wherein the heating assembly comprises:

the heat dissipation plates are arranged in the airflow channel in parallel and fixedly connected with the heat dissipation shell, and divide the airflow channel into a plurality of air channel spaces;

the cooling fin is fixedly arranged in the air channel space, and the cooling fin is formed by bending in a roundabout way so as to divide the air channel space into a plurality of mutually independent heating air channels.

9. The cooling and heating cabinet of claim 8, further comprising:

the heating piece comprises a PCT heating rod which penetrates through the inside of the heat dissipation plate.

10. The cold and hot cabinet according to claim 8, wherein,

the heating piece comprises an electric heating wire which penetrates through the heat dissipation plate, or is attached to the side wall of the heat dissipation plate.