CN220981649U - Direct cooling refrigerator - Google Patents

Abstract

The application relates to the technical field of refrigeration equipment, and discloses a direct-cooling refrigerator which comprises an inner container, an induced air device and a defrosting component. The inner container defines a storage space therein. The induced draft device sets up in the bottom of storing space, and induced draft device is used for guiding the upper portion with storing space lower part air, and induced draft device includes the fan. The defrosting component is arranged in the induced air device and is used for heating the fan to defrost. An air inducing device is arranged at the bottom of the storage space of the inner container, and the sinking cool air is led to the upper part, so that the temperature in the refrigerator is uniform. Further, a defrosting component is arranged in the induced air device, and the defrosting component heats defrosting when the fan congeals frost, so that the normal operation of the induced air device is ensured.

Description

Direct cooling refrigerator

Technical Field

The application relates to the technical field of refrigeration equipment, in particular to a direct-cooling refrigerator.

Background

Horizontal freezers are commonly used in commercial applications such as farmer market (meat, seafood) sales, tea sales, small retail wholesale (pork) and the like. The volume of the refrigerator is larger (more than 500L), and the length of the refrigerator is generally more than 1.5 m. Most existing horizontal refrigerators in the market are direct cooling, namely, an evaporator is wound around an inner container and directly exchanges heat with air in the refrigerator to refrigerate. In the use process, the bottom temperature is obviously fixed at the middle upper part due to the sedimentation effect of cold energy, and the temperature uniformity is poor.

Related art discloses a horizontal refrigerator. The horizontal refrigerator comprises a refrigerator body and further comprises an air duct assembly, the air duct assembly comprises an air duct and a fan, an air inlet is formed in the lower portion of the air duct, an air outlet is formed in the upper portion of the air duct, the fan is located between the air inlet and the air outlet, and the air duct is vertically installed in the refrigerator body. Through setting up independent wind channel in the cabinet body, the lower part in wind channel sets up the air intake, and set up the air outlet in the upper portion in wind channel, under the effect of fan, can carry the upper portion of the cabinet body with the cold air of cabinet body lower part to realize the internal cold air circulation flow from top to bottom of cabinet, avoid cold air to gather in the lower part of the cabinet body, make the internal temperature distribution of cabinet even, realize improving the temperature distribution homogeneity of horizontal freezer, and optimize refrigeration effect.

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:

the refrigerator is often opened and closed during use, wet steam can enter the refrigerator, and in the air circulation process, water vapor is easy to condense in the air duct and on the fan to form frost so as to influence the air circulation.

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

Disclosure of utility model

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.

The embodiment of the disclosure provides a direct cooling type refrigerator, wherein an induced draft device is arranged at the bottom of a storage space of an inner container, sinking cool air is led to the upper part, and the temperature in the refrigerator is uniform. Further, a defrosting component is arranged in the induced air device, and the defrosting component heats defrosting when the fan congeals frost, so that the normal operation of the induced air device is ensured.

In some embodiments, a direct-cooled cooler includes a liner, an air induction device, and a defrosting assembly. The inner container defines a storage space therein. The induced draft device sets up in the bottom of storing space, and induced draft device is used for guiding the upper portion with storing space lower part air, and induced draft device includes the fan. The defrosting component is arranged in the induced air device and is used for heating the fan to defrost.

In some alternative embodiments, the air inducing device further comprises an air duct cover plate, an air inlet and an air outlet are arranged, and the air inlet is positioned at the lower side of the air outlet. The fan is arranged in the air duct cover plate and is positioned between the air inlet and the air outlet. The air duct cover plate is provided with an air inlet and an air outlet, so that an inner air circulation path of the inner container is formed conveniently. The arrangement makes the bottom air inlet and the upper air outlet, and can lead the air at the lower part of the storage space to the upper part, so that the temperature in the liner is uniform.

In some alternative embodiments, the duct cover includes a horizontal cover portion and a vertical cover portion. The vertical cover plate part is connected with the horizontal cover plate part. Wherein, the air intake sets up in vertical apron portion lower part, and the air outlet sets up in vertical apron portion upper portion or horizontal apron portion. The air duct cover plate comprises a horizontal cover plate part and a vertical cover plate part, and the horizontal cover plate part and the vertical cover plate part enclose to form a mounting space of the fan. The air inlet is arranged at the lower part of the vertical cover plate part, and the height of the air inlet is lower so that air at the bottom of the inner container can enter the air duct cover plate and be led to the upper part of the inner container.

In some alternative embodiments, the defrosting assembly includes a plurality of heating elements circumferentially disposed about the blower. In order to improve defrosting efficiency, the defrosting component is arranged in the form of a plurality of heating pieces, and the plurality of heating pieces are arranged around the fan.

In some alternative embodiments, the heating element comprises a heating plate or wire.

In some alternative embodiments, the bottom wall of the liner is provided with a drain opening, which corresponds to the blower. The fan defrosting produces little amount of frost water, and the inner bag diapire sets up the outlet, external water collector or drain pipe are discharged water.

In some alternative embodiments, the bottom wall of the liner protrudes toward the storage space to form a press cavity step for mounting the compressor. Wherein, the horizontal apron portion of wind channel apron is connected in the press chamber step.

In some alternative embodiments, the liner includes a first sidewall that extends along a width of the liner. The horizontal cover plate part of the air duct cover plate is connected to the lower part of the first side wall, and the vertical cover plate part is arranged in parallel with the first side wall.

In some alternative embodiments, the liner includes a second sidewall that extends along a depth of the liner. The horizontal cover plate part of the air duct cover plate is connected to the lower part of the second side wall, and the vertical cover plate part is arranged in parallel with the second side wall.

In some alternative embodiments, the number of fans is a plurality, and the plurality of fans are equally spaced.

In some alternative embodiments, the fan comprises a centrifugal fan.

The direct-cooling refrigerator provided by the embodiment of the disclosure can realize the following technical effects:

The direct-cooling refrigerator comprises an inner container, an induced air device and a defrosting component. The storage space is limited inside the inner container, and the heat exchanger is arranged on the outer wall surface of the inner container and can exchange heat with air in the inner container to reduce the temperature in the refrigerator, so that low-temperature storage is realized. Because the cold air density is great, the cold air is easy to sink and deposit in the inner bag bottom, causes temperature non-uniform and upper portion temperature height in the inner bag, consequently set up induced air device in the bottom of storing space, guide inner bag storing space lower part air upper portion through induced air device, make the inner bag temperature even and available sinking air to cool down to freezer upper portion. Further, a defrosting component is arranged in the induced air device, and the defrosting component heats defrosting when the fan congeals frost, so that the normal operation of the induced air device is ensured. An induced air device and a defrosting device are arranged in the direct-cooling refrigerator, so that the direct-cooling refrigerator is small in structural influence.

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 structural view of a direct-cooled refrigerator according to an embodiment of the present disclosure;

FIG. 2 is a schematic cross-sectional view of a direct-cooled cooler in the direction A-A provided in accordance with an embodiment of the present disclosure;

FIG. 3 is a schematic cross-sectional view of a direct-cooled cooler according to an embodiment of the present disclosure in the B-B direction;

FIG. 4 is a schematic cross-sectional view of a direct-cooled cooler in the C-C direction provided by embodiments of the present disclosure;

fig. 5 is a schematic diagram of a stroke cycle of a direct-cooled refrigerator provided by an embodiment of the present disclosure;

Fig. 6 is a schematic structural view of another direct-cooled refrigerator provided by an embodiment of the present disclosure;

Fig. 7 is a schematic structural view of another direct-cooled refrigerator provided in an embodiment of the present disclosure.

Reference numerals:

10: an inner container; 11: a water outlet; 12: a press cavity step; 13: a first sidewall; 14: a second sidewall;

21: a blower; 22: an air duct cover plate; 221: a horizontal cover plate portion; 222: a vertical cover plate portion; 23: an air inlet; 24: an air outlet;

31: a heating member;

40: a compressor.

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 should be understood that the data so used may be interchanged where appropriate in order to describe the presently disclosed embodiments. 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.

Horizontal freezers are commonly used in commercial applications such as farmer market (meat, seafood) sales, tea sales, small retail wholesale (pork) and the like. The volume of the refrigerator is larger (more than 500L), and the length of the refrigerator is generally more than 1.5 m. Most existing horizontal refrigerators in the market are direct cooling, namely, an evaporator is wound around an inner container and directly exchanges heat with air in the refrigerator to refrigerate. In the use process, the bottom temperature is obviously fixed at the middle upper part due to the sedimentation effect of cold energy, and the temperature uniformity is poor. The existing forced air cooling is used for replacing direct cooling, has developed horizontal forced air cooling freezer, the freezer includes: the inner container encloses an inner space, and the inner container defines an air supply duct with an air supply opening; the air return cover plate is positioned in the inner container and divides the inner space into a storage cavity and an evaporator cavity, an inlet of the air supply duct is communicated with an outlet of the evaporator cavity, and an inlet of the evaporator cavity is communicated with the storage cavity so that air flow flowing out of the air supply port flows through the storage cavity and then flows into the evaporator cavity; a plurality of evaporators, a plurality of said evaporators being located within said evaporator cavity. But the air-cooled refrigerator has higher cost and large structural change.

Based on direct cooling type refrigerator, related technology discloses a horizontal refrigerator. The horizontal refrigerator comprises a refrigerator body and further comprises an air duct assembly, the air duct assembly comprises an air duct and a fan, an air inlet is formed in the lower portion of the air duct, an air outlet is formed in the upper portion of the air duct, the fan is located between the air inlet and the air outlet, and the air duct is vertically installed in the refrigerator body. Through setting up independent wind channel in the cabinet body, the lower part in wind channel sets up the air intake, and set up the air outlet in the upper portion in wind channel, under the effect of fan, can carry the upper portion of the cabinet body with the cold air of cabinet body lower part to realize the internal cold air circulation flow from top to bottom of cabinet, avoid cold air to gather in the lower part of the cabinet body, make the internal temperature distribution of cabinet even, realize improving the temperature distribution homogeneity of horizontal freezer, and optimize refrigeration effect.

The refrigerator is often opened and closed during use, wet steam can enter the refrigerator, and in the air circulation process, water vapor is easy to condense in the air duct and on the fan to form frost so as to influence the air circulation.

The embodiment of the disclosure discloses a direct-cooling refrigerator, wherein an induced draft device is arranged at the bottom of a storage space of an inner container 10, and sinking cool air is led to the upper part, so that the temperature in the refrigerator is uniform. Further, a defrosting component is arranged in the induced air device, and the defrosting component heats defrosting when the fan 21 condenses frost, so that the normal operation of the induced air device is ensured.

Referring to fig. 1-7, embodiments of the present disclosure provide a direct-cooled refrigerator including a liner 10, an induced draft device, and a defrosting assembly. The inner container 10 defines a storage space therein. The induced draft device sets up in the bottom of storing space, and induced draft device is used for guiding the lower part air of storing space upper portion, and induced draft device includes fan 21. The defrosting component is arranged in the induced air device and is used for heating the fan 21 to defrost.

The direct-cooling refrigerator comprises an inner container 10, an induced draft device and a defrosting component. The storage space is limited inside the inner container 10, and a heat exchanger is arranged on the outer wall surface of the inner container 10 and can exchange heat with air in the inner container 10 to reduce the temperature in the refrigerator, so that low-temperature storage is realized. Because the cold air density is great, the cold air is easy to sink and deposit in the bottom of the inner container 10, and the temperature in the inner container 10 is uneven and the upper temperature is high, therefore, the bottom of the storage space is provided with the induced air device, and the air at the lower part of the storage space of the inner container 10 is led to the upper part through the induced air device, so that the temperature in the inner container 10 is even and the upper part of the refrigerator can be cooled by using the sinking air. Further, a defrosting component is arranged in the induced air device, and the defrosting component heats defrosting when the fan 21 condenses frost, so that the normal operation of the induced air device is ensured. An induced air device and a defrosting device are arranged in the direct-cooling refrigerator, so that the direct-cooling refrigerator is small in structural influence.

In some alternative embodiments, the air inducing device further comprises an air duct cover 22, an air inlet 23 and an air outlet 24 are provided, and the air inlet 23 is located at the lower side of the air outlet 24. The fan 21 is disposed in the air duct cover 22 and located between the air inlet 23 and the air outlet 24.

The air duct cover plate 22 is provided with an air inlet 23 and an air outlet 24, so that an air circulation path in the liner 10 is formed. The air inlet 23 is arranged at the lower part of the air duct cover plate 22, and the air outlet 24 is arranged at the upper side of the air inlet 23. The arrangement makes the bottom air intake and the upper air outlet, and can lead the air at the lower part of the storage space to the upper part, so that the temperature in the liner 10 is uniform.

In some alternative embodiments, the duct cover 22 includes a horizontal cover portion 221 and a vertical cover portion 222. The vertical cover plate portion 222 is connected to the horizontal cover plate portion 221. The air inlet 23 is disposed at the lower portion of the vertical cover plate portion 222, and the air outlet 24 is disposed at the upper portion of the vertical cover plate portion 222 or the horizontal cover plate portion 221.

The duct cover 22 includes a horizontal cover part 221 and a vertical cover part 222, and the horizontal cover part 221 and the vertical cover part 222 enclose an installation space of the blower 21. The air inlet 23 is disposed at the lower portion of the vertical cover portion 222, and the air inlet 23 is disposed at a lower level so that air at the bottom of the liner 10 can enter the air duct cover 22 and be led to the upper portion of the liner 10. The air outlet 24 is disposed at an upper side of the air inlet 23, specifically, the air outlet 24 is disposed at an upper portion of the vertical cover plate portion 222 or the horizontal cover plate portion 221. When the air outlet 24 is disposed at the upper portion of the vertical cover plate portion 222, as shown in fig. 5, the air outlet and the air inlet form an included angle smaller than 90 °; when the air outlet 24 is disposed on the horizontal cover plate 221, the air outlet is perpendicular to the air inlet.

In some alternative embodiments, the defrosting assembly includes a plurality of heating elements 31 circumferentially disposed about the blower 21.

In order to improve the defrosting efficiency, the defrosting assembly is provided in the form of a plurality of heating elements 31, and the plurality of heating elements 31 are arranged around the fan 21. As shown in fig. 3, a plurality of heating elements 31 are provided around the blower 21. It should be understood that when the number of fans 21 is plural, a plurality of heating members 31 are provided around each fan 21 to improve defrosting efficiency.

In some alternative embodiments, the heating element 31 comprises a heating plate or wire.

In some alternative embodiments, the bottom wall of the liner 10 is provided with a drain opening 11, and the drain opening 11 is arranged corresponding to the blower 21.

The fan 21 produces little frost water by defrosting, the bottom wall of the liner 10 is provided with a water outlet 11, and the water is discharged by an external water receiving disc or a water discharge pipe. The water outlet 11 is arranged corresponding to the fan 21, and the water outlet 11 is arranged at the lower side of the fan 21 and is positioned on the same vertical plane with the fan 21, so that when the defrosting component is heated, the defrosting water directly falls into the water outlet 11 under the action of gravity, and the water vapor residue in the air duct cover plate 22 is reduced.

In some alternative embodiments, the bottom wall of the liner 10 protrudes toward the storage space to form a press cavity step 12, and the press cavity step 12 is used to mount the compressor 40. Wherein the horizontal cover plate portion 221 of the air duct cover plate 22 is connected to the press cavity step 12.

As shown in fig. 1, the bottom wall of the liner 10 protrudes to the storage space to form a press cavity step 12, the press cavity step 12 and the outer shell of the direct-cooling refrigerator form a compressor 40 installation space, and the compressor 40 is installed in the compressor 40 installation space. The horizontal cover plate part 221 of the air duct cover plate 22 is connected to the press cavity step 12, i.e. the air inducing means is arranged laterally juxtaposed to the press cavity step 12.

In some alternative embodiments, the liner 10 includes a first sidewall 13, the first sidewall 13 extending along a width of the liner 10. The horizontal cover plate 221 of the air duct cover 22 is connected to the lower portion of the first sidewall 13, and the vertical cover plate 222 is disposed parallel to the first sidewall 13.

As shown in fig. 6, taking a case that the direct-cooling refrigerator is in a use state as an example, a side wall facing a user is a front wall of the inner container 10, a rear wall corresponding to the front wall is a rear wall of the inner container 10, two sides are side walls of the inner container 10, and a junction between a right side wall and a bottom wall is a press cavity step 12. The space between the left side wall and the right side wall is the width of the direct-cooling refrigerator, and the space between the front wall and the rear wall is the depth of the direct-cooling refrigerator. The inner container 10 includes a first sidewall 13, and the first sidewall 13 extends along the width direction of the inner container 10, i.e. the first sidewall 13 may be a front wall or a rear wall of the direct-cooling refrigerator. The horizontal cover plate portion 221 of the duct cover plate 22 is connected to the lower portion of the first sidewall 13, and the vertical cover plate portion 222 is disposed parallel to the first sidewall 13, as shown in fig. 7. That is, an air inducing device is provided at the lower portion of the front wall or the rear wall to induce sinking cool air at the bottom of the inner container 10 to the upper portion of the inner container 10.

In some alternative embodiments, the liner 10 includes a second sidewall 14, the second sidewall 14 extending along the depth of the liner 10. The horizontal cover plate 221 of the air duct cover 22 is connected to the lower portion of the second sidewall 14, and the vertical cover plate 222 is disposed parallel to the second sidewall 14.

The second side wall 14 extends along the depth direction of the liner 10, i.e. the second side wall 14 is the left side wall of the direct-cooling refrigerator. The horizontal cover plate portion 221 of the air duct cover plate 22 is connected to the lower portion of the second side wall 14, and the vertical cover plate portion 222 is disposed parallel to the second side wall 14, as shown in fig. 6. Namely, an air inducing device is arranged at the bottom of the opposite side wall of the step 12 of the pressing cavity, and sinking cold air at the bottom of the liner 10 is led to the upper part of the liner 10.

In some alternative embodiments, the number of fans 21 is plural, and the plurality of fans 21 are disposed at equal intervals.

Because the width or the depth of the direct cooling refrigerator is large, in order to improve the air circulation efficiency, a plurality of fans 21 are arranged in the air duct cover plate 22, and the fans 21 are arranged at equal intervals, so that the air inlet driving force is increased, and stable air circulation in the refrigerator is formed.

In some alternative embodiments, the fan 21 comprises a centrifugal fan 21.

The centrifugal fan 21 is a machine for increasing the pressure of gas and discharging the gas by means of input mechanical energy, and is a driven fluid machine. The centrifugal fan is based on the principle of converting kinetic energy into potential energy, and utilizes an impeller rotating at high speed to accelerate gas, then decelerate and change flow direction, so that kinetic energy is converted into potential energy (pressure). In a single stage centrifugal fan, gas enters the impeller from an axial direction, changes to a radial direction as it flows through the impeller, and then enters the diffuser. In the diffuser, the gas changes flow direction and the increase in the cross-sectional area of the duct slows the gas flow, which slows down the kinetic energy into pressure energy. The pressure increase occurs mainly in the impeller and secondarily in the diffusion process. In a multistage centrifugal fan, a reflux is used to force the air flow into the next impeller, creating a higher pressure. The centrifugal fan can realize the conversion of the air inlet and outlet directions, and the centrifugal fan pressurizes the air outlet, so that the sediment air at the bottom of the liner 10 is blown to the upper part of the liner 10.

The number of the air induction devices in the direct-cooling refrigerator provided by the embodiment of the disclosure is not limited, and the number of the air induction devices can be one, two or three.

The direct-cooling refrigerator provided by the embodiment of the disclosure can be arranged on one side of the step 12 of the press cavity, the lower part of the front wall or the rear wall and the lower part of the opposite side wall of the step 12 of the press cavity. That is, the induced draft device is arranged at the corner of the inner container 10, and has little influence on the storage space in the inner container 10. The induced draft device is positioned at the lower part of the side wall, and is easy to avoid the air inlet 23 when storing, so that the air inlet 23 is prevented from being blocked by storing.

The existing direct-cooling refrigerator is often opened and closed during use, wet steam can enter the refrigerator, and in the air circulation process, water vapor is easy to condense in an air duct and on the fan 21 to form frost so as to influence the air circulation.

The embodiment of the disclosure provides a direct-cooling type refrigerator, on the basis that the air inducing device is arranged at the bottom of the storage space of the liner 10, a defrosting component is arranged in the air inducing device, and the defrosting component heats defrosting when the fan 21 condenses, so that the normal operation of the air inducing device is ensured. An induced air device and a defrosting device are arranged in the direct-cooling refrigerator, so that the direct-cooling refrigerator is small in structural influence.

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 direct-cooled cooler, comprising:

An inner container defining a storage space therein;

The air inducing device is arranged at the bottom of the storage space and used for guiding air at the lower part of the storage space to the upper part, and comprises a fan;

the defrosting component is arranged in the induced air device and is used for heating and defrosting the fan.

2. The direct-cooled cooler of claim 1, wherein the air induction device further comprises:

The air duct cover plate is provided with an air inlet and an air outlet, the air inlet is positioned at the lower side of the air outlet,

The fan is arranged in the air duct cover plate and is positioned between the air inlet and the air outlet.

3. The direct-cooled cooler of claim 2, wherein the air duct cover plate comprises:

A horizontal cover plate portion;

A vertical cover plate part connected with the horizontal cover plate part,

Wherein, the air intake sets up in vertical apron portion lower part, and the air outlet sets up in vertical apron portion upper portion or horizontal apron portion.

4. The direct-cooled cooler of claim 1, wherein the defrosting assembly comprises:

The plurality of heating elements are circumferentially arranged around the fan.

5. The direct-cooled cooler of claim 1, wherein,

The bottom wall of the inner container is provided with a water outlet which is arranged corresponding to the fan.

6. The direct-cooled refrigerator according to claim 3,

The bottom wall of the inner container protrudes to the storage space to form a press cavity step which is used for installing a compressor,

Wherein, the horizontal apron portion of wind channel apron is connected in the press chamber step.

7. The direct-cooled refrigerator according to claim 3,

The inner container comprises a first side wall which is arranged along the width direction of the inner container in an extending way,

The horizontal cover plate part of the air duct cover plate is connected to the lower part of the first side wall, and the vertical cover plate part is arranged in parallel with the first side wall.

8. The direct-cooled refrigerator according to claim 3,

The inner container comprises a second side wall which is arranged along the depth direction of the inner container in an extending way,

The horizontal cover plate part of the air duct cover plate is connected to the lower part of the second side wall, and the vertical cover plate part is arranged in parallel with the second side wall.

9. The direct-cooled refrigerator according to any one of claims 1 to 8, characterized in that,

The fan quantity is a plurality of, and a plurality of fans equidistant setting.

10. The direct-cooled refrigerator according to any one of claims 1 to 8, characterized in that,

The fan comprises a centrifugal fan.