CN220852748U - Refrigerating system and refrigerating equipment - Google Patents

Abstract

The utility model provides a refrigerating system and refrigerating equipment, wherein the refrigerating system comprises an evaporator, a water receiving disc and a heater, the water receiving disc is arranged below the evaporator, an air return opening is formed in the water receiving disc, the heater is arranged between the evaporator and the water receiving disc, and the distance between the heater and the air return opening is smaller than or equal to 20mm. Through setting up the heater between evaporimeter and water collector, and the distance less than or equal to 20mm of heater and return air inlet, the heater can be used to get rid of the frost on evaporimeter surface and the refrigeration pipeline on the one hand, keeps the cleanness on evaporimeter surface, improves its work efficiency, on the other hand is nearer with the distance of return air inlet for the heat of heater can effectively radiate the return air inlet surface, heats the return air inlet, prevents that the return air inlet from freezing to block up, guarantees refrigerating system normal work, improves refrigerating efficiency.

Description

Refrigerating system and refrigerating equipment

Technical Field

The utility model relates to the technical field of refrigeration equipment, in particular to a refrigeration system and refrigeration equipment.

Background

The refrigeration equipment needs refrigeration in operation, so the temperature on the surface of the evaporator can be very low, and the air in the refrigeration equipment contains moisture, when the air encounters a cooler evaporator, the moisture can be condensed, a water receiving disc is arranged at the bottom of the evaporator to receive the water, a part of air return opening is arranged on the water receiving disc and far away from the evaporator, and the air return opening is blocked due to the phenomenon of icing easily, so that the refrigeration effect of the refrigeration equipment is affected.

Disclosure of utility model

The utility model provides a refrigerating system and refrigerating equipment, which are used for solving the defect that in the prior art, a return air inlet is easy to freeze and preventing the return air inlet from being blocked by ice to influence the refrigerating effect.

In one aspect, the present utility model provides a refrigeration system comprising:

An evaporator;

The water receiving disc is arranged below the evaporator, and an air return opening is formed in the water receiving disc;

The heater is arranged between the evaporator and the water receiving disc, and the distance between the heater and the return air inlet is smaller than or equal to 20mm.

According to the refrigerating system provided by the embodiment of the utility model, the distance between the heater and the return air inlet is 5-20mm.

According to the refrigerating system provided by the embodiment of the utility model, the refrigerating system further comprises a mounting plate, wherein the mounting plate is used for fixing the heater, and the end part of the mounting plate is fixed on the evaporator or the water receiving disc.

According to the refrigerating system provided by the embodiment of the utility model, the water receiving tray is provided with the water outlets, the number of the mounting plates is multiple, and the multiple mounting plates are distributed along the width direction of the evaporator;

The end part of the mounting plate, which faces the water outlet, is provided with a diversion part corresponding to the middle part of the evaporator.

According to the refrigerating system provided by the embodiment of the utility model, the water receiving tray comprises the bottom plate and the side plates, the side plates and the bottom plate are surrounded to form the water receiving tank, and the water outlet is formed at the bottom of the water receiving tank.

According to the refrigerating system provided by the embodiment of the utility model, the heater comprises a heating pipe, the heating pipe comprises a first pipe section, the first pipe section is arranged along the circumferential direction of the water receiving groove, and the first pipe section is arranged close to the bottom plate, the side plate and the water outlet.

According to the refrigerating system provided by the embodiment of the utility model, the heating pipe comprises the second pipe section, the second pipe section is arranged at the bottom of the evaporator, and the second pipe section extends along the arrangement direction of the evaporator.

According to the refrigerating system provided by the embodiment of the utility model, the return air inlets are formed in the two opposite wall surfaces of the side plate.

According to the refrigerating system provided by the embodiment of the utility model, the water receiving disc is provided with the first water guide surface and the second water guide surface which are obliquely arranged downwards, the second water guide surface is connected with the first water guide surface, the second water guide surface and the first water guide surface are oppositely inclined to form an included angle, and the water outlet is arranged at the joint of the first water guide surface and the second water guide surface.

Another aspect of the present utility model also provides a refrigeration apparatus, including:

The refrigerator comprises a box body, wherein a plurality of refrigeration compartments are arranged in the box body;

The above refrigerating system is used for separating two adjacent refrigerating compartments, the number of the air return inlets is a plurality, and one air return inlet is communicated with one refrigerating compartment; and the other return air inlet is communicated with the other refrigeration compartment.

The utility model provides a refrigerating system and refrigerating equipment, which comprise an evaporator, a water receiving disc and a heater, wherein the water receiving disc is arranged below the evaporator, an air return opening and a water outlet are formed in the water receiving disc, the heater is arranged between the evaporator and the water receiving disc, and the distance between the heater and the air return opening is smaller than or equal to 20mm. Through setting up the heater between evaporimeter and water collector, and the distance less than or equal to 20mm of heater and return air inlet, the heater can be used to get rid of the frost on evaporimeter surface and the refrigeration pipeline on the one hand, keeps the cleanness on evaporimeter surface, improves its work efficiency, on the other hand is nearer with the distance of return air inlet for the heat of heater can effectively radiate the return air inlet surface, heats the return air inlet, prevents that the return air inlet from freezing to block up, guarantees refrigerating system normal work, improves refrigerating efficiency.

Drawings

In order to more clearly illustrate the utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a refrigeration system according to the present utility model;

FIG. 2 is a front view of a refrigeration system provided by the present utility model;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

fig. 4 is a schematic structural view of a water pan according to the present utility model;

Fig. 5 is a schematic structural view of a water pan according to the present utility model;

FIG. 6 is a top view of a drip tray provided by the present utility model;

FIG. 7 is an enlarged partial schematic view at B in FIG. 5;

fig. 8 is a schematic structural diagram of a refrigeration apparatus provided by the present utility model.

Reference numerals:

1. An evaporator;

2. A water receiving tray; 21. an air return port; 22. a bottom plate; 23. a side plate; 24. a water outlet; 221. a first water guiding surface; 222. a second water guiding surface;

3. a heater; 31. heating pipes; 311. a first pipe section; 312. a second pipe section;

4. A mounting plate; 41. a flow guiding part;

100. A refrigeration system; 200. a case; 210. a refrigeration compartment.

Detailed Description

In the description of the embodiments of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "longitudinal", "lateral", "upper", "lower", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In describing embodiments of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present utility model will be understood in detail by those of ordinary skill in the art.

In embodiments of the utility model, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature "above," "over" and "on" a second feature may be a first feature directly above or obliquely above the second feature, or simply indicate that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

An embodiment of the present utility model, as shown in fig. 1 to 8, provides a refrigeration system and a refrigeration apparatus.

An embodiment of an aspect of the present utility model, as shown in fig. 1, 2 and 3, provides a refrigeration system 100, which includes an evaporator 1, a water pan 2 and a heater 3, wherein the water pan 2 is disposed below the evaporator 1, an air return port 21 is formed on the water pan 2, the heater 3 is disposed between the evaporator 1 and the water pan 2, and a distance H between the heater 3 and the air return port 21 is less than or equal to 20mm.

It will be appreciated that the evaporator 1 is part of a refrigeration cycle and is primarily responsible for absorbing heat from the condenser and transferring it to the refrigerant. As the refrigerant passes through the evaporator 1, it changes from a liquid state to a gaseous state and absorbs heat around the evaporator 1, resulting in a decrease in the surface temperature of the evaporator 1. Thus, the evaporator 1 can absorb heat from the inside of the refrigeration compartment to keep it in a low temperature state. In this way, the air in the freezer and refrigerator compartments is cooled and the food and items are kept fresh.

In this embodiment, by disposing the heater 3 between the evaporator 1 and the water receiving tray 2, and the distance H between the heater and the return air inlet 21 is 20mm or less, it is understood that the distance between the heater 3 and the return air inlet 21 is not the distance between the center of the heater and the return air inlet 21, but the distance between the bottom of the heater 3 and the return air inlet 21 on the side close to the return air inlet 21. The heater 3 can be used on the one hand for removing frost on the surface of the evaporator 1 and on the refrigeration line. When the door of the refrigerating apparatus is opened, hot air enters the inside of the refrigerating apparatus, and water vapor therein may frost on the surface of the evaporator 1. After long-term use, the frost may cause a decrease in heat exchange effect on the surface of the evaporator 1, affecting the cooling effect. At this time, the heater 3 can be started to generate enough heat to melt the frost on the evaporator 1, so that the surface of the evaporator 1 is kept clean, and the working efficiency of the evaporator is improved. On the other hand, the distance between the heater 3 and the return air inlet 21 is set to be relatively close, so that heat of the heater 3 can be effectively radiated to the surface of the return air inlet 21, the return air inlet 21 is heated, the check air inlet 21 is prevented from being frozen and blocked, normal operation of the refrigerating system 100 is guaranteed, and refrigerating efficiency is improved.

It will be appreciated that the heater 3 may be in the form of a heating wire, an electric heating tube, an electric heating film or a high frequency heater, etc., to melt frost of the evaporator 1 by heating and to receive such water through the water pan 2 and then to discharge the water out of the refrigeration compartment through the water outlet 24, so that the heater 3 may be used to defrost the evaporator 1 and prevent the non-return air port 21 from being blocked by ice, and a user may obtain a continuously stable low temperature environment within the refrigeration compartment while also reducing defrosting operations required for the refrigeration equipment.

According to one embodiment of the present utility model, as shown in fig. 2 and 3, the distance H between the heater 3 and the return air opening 21 is 5-20mm.

It can be understood that, in this embodiment, in order to prevent the temperature of the heater 3 from being too high and the distance from the air return opening 21 from being too close, the air return opening 21 is deformed, which affects the air return effect of the air return opening 21, and the distance H between the outer wall of the heater 3 and the air return opening 21 may be between 5mm and 20mm, on the other hand, the distance between the heater 3 and the wall surface of the water receiving tray 2 is also prevented from being too close, so that the shape of the water receiving tray 2 is deformed, and the normal operation of the refrigeration system 100 is ensured.

According to one embodiment of the present utility model, as shown in connection with fig. 1 and 3, the refrigeration system 100 further includes a mounting plate 4, the mounting plate 4 being used to secure the heater 3, and an end of the mounting plate 4 being secured to the evaporator 1 or the drip tray 2.

It can be understood that in this embodiment, the heater 3 is mounted on the evaporator 1 or the water pan 2 through the mounting plate 4, so as to realize suspended arrangement of the heater 3, avoid the surface contact between the heater 3 and the evaporator 1 or the water pan 2, and prevent the evaporator 1 or the water pan 2 from deforming. In an alternative embodiment, the end of the mounting plate 4 is mounted on the evaporator 1, so as to fix the heater 3 on the evaporator 1, and the heater 3 can radiate heat to the surface of the evaporator 1 and the surface of the air return opening 21, so as to ensure good defrosting and deicing effects.

According to one embodiment of the present utility model, as shown in fig. 1, 5 and 7, the water receiving tray 2 is provided with the water outlet 24, the number of the mounting plates 4 is plural, and the plural mounting plates 4 are distributed along the width direction of the evaporator 1; the end of the mounting plate 4 corresponding to the middle of the evaporator 1, which faces the water outlet 24, is formed with a flow guide 41.

It will be appreciated that in this embodiment, in order to better mount and fix the heater 3, the heater 3 is prevented from falling during use, the number of mounting plates 4 is plural, and the plural mounting plates 4 are distributed along the width direction of the evaporator 1, so that the balance stability of the heater 3 is improved.

In an alternative embodiment, the end of the mounting plate 4, which corresponds to the middle part of the evaporator 1 and faces the water outlet 24, is provided with the flow guiding part 41, so that condensed water on the evaporator 1 and the mounting plate 4 can be converged to the water outlet 24 through the flow guiding part 41 to be discharged, and water is conveniently discharged, and on the other hand, as the heater 3 is mounted on the mounting plate 4, part of heat of the heater 3 can be radiated to the mounting plate 4 and transferred to the vicinity of the water outlet 24 through the flow guiding part 41 of the mounting plate 4, the deicing effect near the water outlet 24 is further improved, the possibility of blocking the water outlet 24 of the water receiving disc 2 is further reduced, and the water discharging of the water receiving disc 2 is facilitated.

According to one embodiment of the present utility model, as shown in fig. 4, 5 and 7, the water pan 2 includes a bottom plate 22 and a side plate 23, the side plate 23 and the bottom plate 22 enclose a water receiving tank, and a water outlet 24 is formed at the bottom of the water receiving tank.

It will be appreciated that the water outlet 24 is provided at the bottom of the water receiving trough to facilitate drainage. In this embodiment, the water receiving groove is adapted to the shape of the evaporator 1, so as to conveniently receive the condensation water dropped on the evaporator 1, as shown in fig. 4, 5 and 6, for example, the water receiving tray 2 is rectangular box-shaped, the side plate 23 is circumferentially arranged along the periphery of the bottom plate 22, and the bottom plate 22 and the side plate 23 are circumferentially combined to form the water receiving groove. Optionally, the bottom plate 22 and the side plate 23 may be integrally formed, so as to improve the structural strength and connection stability of the water pan 2, and reduce the installation steps; alternatively, the bottom plate 22 may be fixedly connected to the side plate 23 by welding, bonding or other means, which is not limited herein.

According to one embodiment of the present utility model, as shown in connection with fig. 5, 6 and 7, the heater 3 includes a heating pipe 31, the heating pipe 31 includes a first pipe section 311, the first pipe section 311 is disposed along a circumferential direction of the water receiving tank, and the first pipe section 311 is disposed near the bottom plate 22, the side plate 23 and the water outlet 24.

In this embodiment, the heating pipe 31 includes a first pipe section 311, the first pipe section 311 is disposed along the circumference of the water receiving tank, and the first pipe section 311 is disposed in the water receiving tank and near the bottom plate 22, the side plate 23 and the water outlet 24, so that on one hand, water in the water receiving tray 2 is prevented from freezing on the inner wall of the water receiving tray 2, and on the other hand, normal draining of water in the water receiving tray 2 due to blocking of the water outlet 24 is prevented.

It will be readily appreciated that the first tube segment 311 may be circumferentially disposed along the connection between the bottom plate 22 and the side plate 23, and in an alternative embodiment, the first tube segment 311 may be spaced from the surfaces of the bottom plate 22, the side plate 23, and the water outlet 24 by a distance of 5-20mm to ensure good deicing of the bottom plate 22 and the side plate 23 and the water outlet 24 by the heating tube 31 while preventing deformation of the bottom plate 22, the side plate 23, or the water outlet 24 due to too close a distance of the heating tube 31.

In this embodiment, the heater 3 heats the evaporator 1 and the air return opening 21 in the form of a heating pipe 31, the heating pipe 31 is a tubular structure made of a heat conducting material, and the interior of the heating pipe 31 contains a heating coil or a heating body, when current is introduced, the heating pipe 31 heats and conducts to the pipe wall, heat is transferred to the surface of the evaporator 1 and radiated to the air return opening 21 through the pipe wall, frost on the surface of the evaporator 1 is removed, the air return opening 21 is heated, and the air return opening 21 is prevented from being blocked, meanwhile, in order to ensure the refrigerating effect of the refrigerating system 100, the distance H between the outer wall of the heating pipe 31 and the air return opening 21 is less than 20mm, so that the heat of the heating pipe 31 can be effectively radiated to the air return opening 21, and ice at the air return opening 21 is melted.

It can be appreciated that the heating pipe 31 is used for simultaneously heating the surfaces of the evaporator 1 and the return air inlet 21, the heating pipe 31 has higher heating efficiency, and can rapidly provide enough heat, and the heat conduction material and the structural design thereof can effectively transfer the heat to the surfaces of the evaporator 1 and the return air inlet 21 so as to melt the frost on the surface of the evaporator 1 and the ice at the return air inlet 21; and the control precision is high, the defrosting and deicing process can be precisely controlled by adjusting the current and the power supply time of the heating pipe 31, and a user can set a proper defrosting and deicing period and heating time according to the needs to balance defrosting and deicing effects and energy consumption, so that the performance and the service life of the refrigeration equipment are improved.

According to an embodiment of the present utility model, as shown in fig. 1, 5 and 6, the heating pipe 31 further includes a second pipe section 312, the second pipe section 312 is disposed at the bottom of the evaporator 1, and the second pipe section 312 extends in the width direction of the evaporator 1.

It will be appreciated that the width direction of the evaporator 1 is the direction shown in fig. 1, the second pipe sections 312 may be uniformly distributed on the bottom surface of the evaporator 1 or near the bottom surface of the evaporator 1, so that relatively uniform heating distribution can be achieved on the surface of the evaporator 1, and thus, frost on the surface of the whole evaporator 1 can be ensured to be sufficiently melted, the situation that partial areas are frosted and remain is avoided, and normal operation of the evaporator 1 is ensured.

It should be noted that, the air return opening 21 may be disposed on the bottom plate 22 or the side plate 23, and the air return opening 21 may be disposed on both the bottom plate 22 and the side plate 23, so as to increase the area of the air return opening 21 and increase the air return rate.

In an alternative embodiment, in order to facilitate air return, an air return opening 21 is formed in the side plate 23, and circulated cold air passes through the air return opening 21 and returns to the upper evaporator 1 through the water receiving tank. It will be appreciated that the bottom of the return air inlet 21 is spaced from the base plate 22, i.e. the first return air inlet 21 is not in contact with the base plate 22, to prevent water received by the base plate 22 from exiting the return air inlet 21. Of course, in other embodiments, the bottom of the air return opening 21 may be connected to the bottom plate 22, and a water surrounding plate may be protruded on the bottom plate 22 to stop water in the water receiving tank from flowing out of the air return opening 21.

In an alternative embodiment, the shape of the return air inlet 21 is inverted triangle, that is, the opening of the return air inlet 21 is gradually enlarged in a direction away from the bottom plate 22, thus reducing the risk of water on the bottom plate 22 flowing out of the return air inlet 21 and ensuring the return air efficiency of the return air inlet 21.

According to an embodiment of the present utility model, as shown in fig. 4, two opposite wall surfaces of the side plate 23 are provided with the air return openings 21, so that on one hand, the air return area can be increased, the air return quantity can be increased to improve the air return efficiency, and on the other hand, the air return openings 21 on different wall surfaces can be connected with different refrigeration compartments 200 to realize the air return of a plurality of refrigeration compartments 200.

According to an embodiment of the present utility model, as shown in fig. 4, the water pan 2 is provided with a first water guiding surface 221 and a second water guiding surface 222 which are inclined downward, the second water guiding surface 222 is connected with the first water guiding surface 221, the second water guiding surface 222 and the first water guiding surface 221 are inclined towards each other to form an included angle, and the water outlet 24 is arranged at the connection position of the first water guiding surface 221 and the second water guiding surface 222.

It will be appreciated that in this embodiment, in order to facilitate collection of water in the water receiving tank, the side of the bottom plate 22 facing the evaporator 1 is provided with the first water guiding surface 221, the first water guiding surface 221 is inclined downward, and water drops fall into the water receiving tank and can flow along the first water guiding surface 221 of the bottom plate 22 to the bottom water outlet 24, so as to facilitate drainage of water. It will be appreciated that the water outlet 24 may be connected by a pipe to other water collecting structures, such as a water receiving structure on the compressor, and that condensed water from the evaporator 1 may be transferred to the compressor for heat exchange by the compressor to improve the utilization.

It can be appreciated that the second water guiding surface 222 is convenient for guiding water to the water outlet 24, and the first water guiding surface 221 and the second water guiding surface 222 are arranged to incline towards each other to form an included angle, that is, the first water guiding surface 221 and the second water guiding surface 222 form a funnel shape, so that water at two ends of the water receiving tank can flow to the water outlet 24 through the first water guiding surface 221 and the second water guiding surface 222 respectively, and water is discharged conveniently. It can be appreciated that the water outlet 24 can be disposed at the connection position between the first water guiding surface 221 and the second water guiding surface 222 by setting the first water guiding surface 221 and the second water guiding surface 222, so that the inclination angle of the first water guiding surface 221 and the second water guiding surface 222 is not too large in order to ensure that the overall height of the water receiving tray 2 is not too high.

In another aspect of the present utility model, as shown in fig. 1 and 8, there is provided a refrigeration apparatus including:

a case 200 having a plurality of refrigerating compartments 210 therein;

In the above-mentioned refrigeration system 100, the refrigeration system 100 is configured to space two adjacent refrigeration compartments 210, the number of the air return ports 21 is plural, and one of the air return ports 21 is communicated with one of the refrigeration compartments 210; wherein the other return air port 21 communicates with the other refrigeration compartment 210.

It is understood that the refrigerating apparatus includes, but is not limited to, a refrigerator or a freezer, and the refrigerating compartment 210 may be a freezing compartment, a refrigerating compartment, a temperature changing compartment, or the like, and the present embodiment is not particularly limited. The refrigerating system 100 has the advantages of the above embodiments, and the refrigerating device also has the advantages of the above embodiments, and the detailed description thereof may refer to the above embodiments, which are not repeated herein.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (10)

1. A refrigeration system, comprising:

An evaporator;

The water receiving disc is arranged below the evaporator, and an air return opening is formed in the water receiving disc;

The heater is arranged between the evaporator and the water receiving disc, and the distance between the heater and the return air inlet is smaller than or equal to 20mm.

2. A refrigeration system according to claim 1 wherein said heater is located from 5 to 20mm from said return air inlet.

3. The refrigeration system of claim 1 further comprising a mounting plate for securing the heater and an end of the mounting plate is secured to the evaporator or the drip tray.

4. A refrigeration system as set forth in claim 3 wherein said water pan is provided with water outlets, said plurality of mounting plates are distributed in a widthwise direction of said evaporator;

The end part of the mounting plate, which faces the water outlet, is provided with a diversion part corresponding to the middle part of the evaporator.

5. The refrigeration system as recited in any one of claims 1 to 4 wherein said water pan includes a bottom plate and a side plate, said side plate and said bottom plate enclosing to form a water receiving tank, a water outlet being formed at the bottom of said water receiving tank.

6. The refrigeration system of claim 5, wherein the heater comprises a heating tube comprising a first tube segment disposed circumferentially of the water receiving tank, and wherein the first tube segment is disposed proximate the bottom plate, the side plate, and the water outlet.

7. The refrigeration system of claim 6, wherein the heating tube comprises a second tube segment, the second tube segment is disposed at a bottom of the evaporator, and the second tube segment extends in a direction in which the evaporator is disposed.

8. The refrigerant system as set forth in claim 5, wherein said return air inlet is provided in each of two opposite walls of said side panel.

9. The refrigeration system of claim 5, wherein the water pan is provided with a first water guiding surface and a second water guiding surface which are arranged in a downward inclined manner, the second water guiding surface is connected with the first water guiding surface, an included angle is formed by the second water guiding surface and the first water guiding surface in a way of being inclined in opposite directions, and the water outlet is arranged at the connecting position of the first water guiding surface and the second water guiding surface.

10. A refrigeration appliance, comprising:

The refrigerator comprises a box body, wherein a plurality of refrigeration compartments are arranged in the box body;

The refrigeration system of any of claims 1-9 for spacing two adjacent ones of said refrigeration compartments, said plurality of return air openings, one of said return air openings communicating with one of said refrigeration compartments; and the other return air inlet is communicated with the other refrigeration compartment.