CN217636332U - Refrigeration equipment and air return heat exchange tube assembly - Google Patents

Abstract

The application relates to the technical field of refrigeration equipment, and provides refrigeration equipment and a return air heat exchange tube assembly. The refrigeration equipment comprises a box body and a refrigeration system, wherein a foaming layer is arranged in the box body; refrigerating system connects in the box, and refrigerating system includes drier-filter, and drier-filter sets up in the foaming layer. According to the refrigeration plant of this application embodiment, through installing drier-filter in the foaming layer, the foaming layer has very good effects such as salt fog prevention and heat preservation, can effectually play the guard action to drier-filter, can effectually avoid drier-filter to receive stress influence and corrosion damage. After the drying filter is moved to the foaming layer, the drying filter can be operated to be connected with other parts before foaming, and the space at the foaming layer is larger, so that the space for operation is larger, the operation is more facilitated, the connection quality is ensured, the reliability of the refrigeration equipment is improved, and the volume utilization rate of the refrigeration equipment is improved.

Description

Refrigeration equipment and air return heat exchange tube assembly

Technical Field

The application relates to the technical field of refrigeration equipment, in particular to refrigeration equipment and an air return heat exchange tube assembly.

Background

The dry filter of the refrigerator is arranged in a compressor bin of the refrigerator, when the pipeline connection is realized, the dry filter needs to enter and exit the bin for several times, and a plurality of connection positions (for example, welding) are operated in a narrow space of the compressor bin, so that the problem of inconvenient operation due to the narrow space exists in the production of the whole machine, the quality of the connection positions cannot be ensured, and the reliability of the machine is influenced; meanwhile, the drying filter placed in the compressor bin is easily affected by environmental stress, including but not limited to high and low temperatures, humidity, salt mist, oil stains and the like, so that the drying filter is easily corroded and damaged. The compressor compartment occupies a large space, resulting in a reduction in the volume of the refrigerator freezer or the refrigerator liner, and the volume utilization of the refrigerator is low.

That is, refrigeration equipment such as a refrigerator in the related art has the problems of poor reliability of the refrigeration equipment, easy damage of a dry filter, low volume utilization rate and the like due to the influence of the dry filter.

SUMMERY OF THE UTILITY MODEL

The present application is directed to solving at least one of the technical problems occurring in the related art. Therefore, the refrigeration equipment is provided, the drying filter is arranged in the foaming layer, and the foaming layer can effectively protect the drying filter and prevent the drying filter from being damaged due to the influence of environmental stress; and can operate the drier-filter before foaming and be connected with other parts, the space that can supply the operation is bigger, and is more convenient, has improved refrigeration plant's reliability, can effectual reduction compressor storehouse occupy the space, and then improve volume utilization.

The application also provides an air return heat exchange tube assembly.

The refrigeration equipment according to the embodiment of the first aspect of the application comprises:

a box body, wherein a foaming layer is arranged inside the box body;

refrigerating system, connect in the box, refrigerating system includes drier-filter, drier-filter set up in the foaming layer.

According to the refrigeration plant of this application embodiment, through installing drier-filter in the foaming layer, the foaming layer has very good effects such as salt fog prevention and heat preservation, can effectually play the guard action to drier-filter, can effectually avoid drier-filter to receive stress influence and corrosion damage. After the drying filter is moved to the foaming layer, the drying filter can be operated to be connected with other parts before foaming, and the space at the foaming layer is larger, so that the space for operation is larger, the operation is more facilitated, the connection quality is ensured, and the reliability of the refrigeration equipment is improved. The compressor compartment has less drying filter, so that the occupied space of the compressor compartment is reduced, the space of the refrigerating compartment or the freezing compartment can be correspondingly increased, and the volume utilization rate of the refrigeration equipment is further improved.

According to an embodiment of the application, refrigerating system still includes capillary and return air heat exchange tube, the capillary with drier-filter connects, the capillary with the return air heat exchange tube contacts and is located in the foaming layer.

According to one embodiment of the application, the capillary tube, the air return heat exchange tube and the drying filter are connected through a heat insulation piece.

According to one embodiment of the application, the filter-drier is connected to a capillary tube, and the return air heat exchange tube is configured with an inner concave surface which is in contact with the surface of the capillary tube.

According to an embodiment of the application, the refrigeration system comprises a condenser and an evaporator, the condenser and the evaporator are connected through a connecting pipeline, and the connecting pipeline is located in the foaming layer.

According to an embodiment of the application, the connecting line includes first connecting line and second connecting line, the drier-filter pass through first connecting line with the condenser is connected, the drier-filter pass through the second connecting line with the evaporimeter is connected.

According to an embodiment of the application, the refrigerating system includes preventing the condensation pipe, the condenser with prevent the third connecting line between the condensation pipe and be located in the foaming layer.

According to an embodiment of the application, refrigerating system includes the compressor, the compressor set up in compressor storehouse in the box, be provided with fourth connecting line and fifth connecting line in the compressor storehouse, the one end of compressor with fourth connecting line's one end is connected, the fourth connecting line other end through first connection position with fifth connecting line connects, fifth connecting line passes the compressor storehouse with the evaporimeter is connected.

According to one embodiment of the application, a sixth connecting pipeline and a seventh connecting pipeline are arranged in the compressor bin, the other end of the compressor, the sixth connecting pipeline and the seventh connecting pipeline are sequentially connected, the seventh connecting pipeline penetrates through the compressor bin to be connected with the condenser, and the sixth connecting pipeline and the seventh connecting pipeline are connected through a second connecting position.

According to one embodiment of the application, a heat generating component is arranged in the box body, and a heat insulating component is arranged between the heat generating component and the compartment of the box body.

According to the air return heat exchange tube subassembly of this application second aspect embodiment, including heat preservation piece, drier-filter and air return heat exchange tube, drier-filter with the air return heat exchange tube is located in the heat preservation piece.

According to air return heat exchange tube subassembly of this application embodiment, through installing drier-filter and air return heat exchange tube in the heat preservation, can be in the same place drier-filter and the prefabricated installation of air return heat exchange tube in advance for drier-filter and air return heat exchange tube use as the subassembly, avoided carrying out the connection of drier-filter and air return heat exchange tube in narrow and small spaces such as compressor storehouse, can effectively promote operating space, the reliability of drier-filter and air return heat exchange tube connection has been improved, can also reduce equipment fixing man-hour.

According to one embodiment of the application, the filter-drier is in communication with a capillary tube, and the return air heat exchange tube is configured with an inner concave surface that contacts a surface of the capillary tube.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments or related technologies of the present application, the drawings needed to be used in the description of the embodiments or related technologies are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a refrigeration apparatus provided in an embodiment of the present application;

FIG. 2 is a schematic structural diagram of an air return heat exchange tube assembly provided by an embodiment of the present application;

reference numerals:

1. a box body; 2. drying the filter; 3. a condenser; 4. an evaporator; 5. an air return heat exchange pipe;

6. a compressor; 7. a first connection site; 8. a second connection bit; 9. a condensation prevention pipe; 10. a heat preservation member;

11. a foamed layer; 12. a compressor bin; 13. a cavity may be utilized; 14. a thermal insulation member; 15. a thermally insulated housing;

16. a capillary tube.

Detailed Description

Embodiments of the present application will be described in further detail below with reference to the drawings and examples. The following examples are intended to illustrate the present application but are not intended to limit the scope of the present application.

In the description of the embodiments of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present application, it should be noted that the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection, unless explicitly stated or limited otherwise; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.

In the embodiments of the present application, unless otherwise explicitly specified or limited, a first feature "on" or "under" a second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean 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 an embodiment of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer 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, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The refrigeration equipment and the return air heat exchange tube assembly of the present application are described below with reference to fig. 1 and 2.

In accordance with an embodiment of the first aspect of the present application, as shown in fig. 1, a refrigeration device comprises:

a box body 1, wherein a foaming layer 11 is arranged inside the box body;

refrigerating system connects in box 1, and refrigerating system includes drier-filter 2, and drier-filter 2 sets up in foaming layer 11.

When the drying filter 2 is used, the drying filter 2 is arranged in the foaming layer 11, the foaming layer 11 has good effects of salt mist prevention, heat preservation and the like, the drying filter 2 can be effectively protected, and the drying filter 2 can be effectively prevented from being corroded and damaged due to stress influence. After the drying filter 2 is moved to the foaming layer 11, the connection between the drying filter 2 and other components (such as an evaporator and a condenser) can be operated before foaming, and the space at the foaming layer 11 is larger, so that the space for operation is larger, the operation is more facilitated, the connection quality is ensured, and the reliability of the refrigeration equipment is improved. Compare and install drier-filter 2 in the compressor storehouse in correlation technique, the compressor storehouse of this application is owing to having lacked drier-filter 2 for the occupied space in compressor storehouse reduces, and the corresponding space that can increase cold-stored room or freezing room, and then has improved refrigeration plant's volume utilization.

In one embodiment of the present application, as shown in fig. 1, the refrigeration system further comprises a capillary tube 16 and a return air heat exchange tube 5, the capillary tube 16 is connected to the filter-drier 2, and the capillary tube 16 is in contact with the return air heat exchange tube 5 and is located inside the foam layer 11. When the drying filter 2, the capillary tube 16 and the air return heat exchange tube 5 are located in the foaming layer 11, the drying filter 2, the capillary tube 16 and the air return heat exchange tube can be effectively protected by the foaming layer 11, and the drying filter 2, the capillary tube 16 and the air return heat exchange tube 5 are prevented from being corroded and damaged due to the influence of the external environment. Certainly, can be in advance with drier-filter 2, capillary 16 and return-air heat exchange tube 5 prefabricated installation together for drier-filter 2, capillary 16 and return-air heat exchange tube 5 use as the subassembly, avoided carrying out drier-filter 2, capillary 16 and return-air heat exchange tube 5's connection in narrow and small spaces such as compressor storehouse, can effectively promote operating space, improved drier-filter 2, capillary 16 and the reliability of return-air heat exchange tube 5 connection, can also reduce equipment fixing man-hour.

In one embodiment of the present application, the refrigeration system is, for example, a single capillary refrigeration system or a multi-capillary refrigeration system, preferably a single capillary refrigeration system or a dual capillary refrigeration system. It should be understood that the refrigeration system may be of any other suitable configuration.

In one embodiment of the present application, the capillary tube 16, the return air heat exchange tube 5 and the dry filter 2 are connected through the heat insulating member 10. When in use, the capillary tube 16, the air return heat exchange tube 5 and the dry filter 2 are arranged in the heat insulation piece 10, and the capillary tube 16, the air return heat exchange tube 5 and the dry filter 2 are fixed in a foaming layer of the back of the refrigerator through the heat insulation piece 10. In the production process, the capillary tube 16, the air-return heat exchange tube 5 and the dry filter 2 can be connected together in advance, and then the capillary tube 16, the air-return heat exchange tube 5 and the dry filter 2 are wrapped by the heat insulating member 10. And then can reduce equipment fixing man-hour, can effectively promote operating space in spare part production.

In the embodiment of the present application, the insulating member 10 is, for example, a foam or an insulating layer. It should be understood that the insulating member 10 may be any other suitable structure.

In one embodiment of the present application, the filter-drier unit 2 is connected to a capillary tube 16, and the return-air heat exchange tube 5 is configured with an inner concave surface which contacts with the surface of the capillary tube 16. In use, the capillary tube 16 is in contact with the return air heat exchange tube 5 by mounting the capillary tube 16 on an inner concave surface of the return air heat exchange tube 5. This embodiment can increase the contact area between the capillary tube 16 and the return air heat exchange tube 5.

In one embodiment of the present application, as shown in fig. 1, the refrigeration system includes a condenser 3 and an evaporator 4, and the condenser 3 and the evaporator 4 are connected by a connecting line, which is located in the foaming layer 11. When the refrigeration equipment is used, the connecting pipeline between the condenser 3 and the evaporator 4 is moved into the foaming layer 11, the space occupying the compressor bin 12 is avoided, the volume utilization rate of the refrigeration equipment is improved, the space in the foaming layer 11 is larger, and the connection and installation of the pipeline are facilitated.

In one embodiment of the present application, as shown in fig. 1, the connection pipeline includes a first connection pipeline and a second connection pipeline, the dry filter 2 is connected with the condenser 3 through the first connection pipeline, the dry filter 2 is connected with the evaporator 4 through the second connection pipeline, and the first connection pipeline and the second connection pipeline are located in the foaming layer 11. When using, through installing drier-filter 2 in foaming layer 11, drier-filter 2 is connected with condenser 3 and evaporimeter 4 respectively through first connecting line and second connecting line, because drier-filter 2 is located foaming layer 11 this moment, then first connecting line and second connecting line can be corresponding remove in foaming layer 11, and then further reduction the required space that occupies in compressor storehouse 12, make refrigeration plant can have more spaces as freezing or cold-stored compartment, and then improved refrigeration plant's volume utilization. And the length of the pipeline from the drying filter 2 to the condenser 3 and the evaporator 4 is shortened, and the cost is reduced.

In an embodiment of the application, the second connecting line is for example a capillary or a common line. When the dry filter 2 is communicated with the evaporator 4 through the capillary tube 16, the second connecting pipeline is the capillary tube 16; when the pressure between the condenser 3 and the evaporator 4 is relieved through the expansion valve, the pipe diameter of the second connecting pipeline can be set as required.

In one embodiment of the present application, the refrigeration system comprises a condensation preventing pipe 9, and the third connecting line between the condenser 3 and the condensation preventing pipe 9 is located inside the foaming layer 11. When the refrigeration device is used, the condenser 3 and the anti-condensation pipe 9 are connected through the third connecting pipeline, the third connecting pipeline is installed in the foaming layer 11, the space occupying the compressor bin 122 is avoided, the space occupied by the compressor bin 12 is further reduced, the refrigeration device can have more spaces as freezing or refrigerating compartments, and the volume utilization rate of the refrigeration device is further improved.

In one embodiment of the present application, as shown in fig. 1, the lower part of the box 1 is provided with a compressor bin 12 and an available cavity 13, the compressor bin 12 being located below the foam layer 11. When the compressor is used, the lower space of the box body 1 is used as the compressor bin 12, and the drying filter 2 is arranged in the foaming layer 11 above the compressor bin 12, so that the number of parts in the compressor bin 12 is reduced, the space occupied by the compressor bin 12 is reduced, and the lower space of the box body 1 can be provided with the available cavity 13. In practical use, the available cavity 13 can be used as an expansion space of a box liner of the refrigeration equipment, so that the refrigeration equipment with the same size can realize larger effective refrigerating and cold storage space, and the volume utilization rate of the refrigeration equipment is improved.

In an embodiment of the present application, as shown in fig. 1, the refrigeration system includes a compressor 6, the compressor 6 is disposed in a compressor compartment 12, a fourth connecting pipeline and a fifth connecting pipeline are disposed in the compressor compartment 12, one end of the compressor 6 is connected to one end of the fourth connecting pipeline, the other end of the fourth connecting pipeline is connected to the fifth connecting pipeline through a first connecting position 7, and the fifth connecting pipeline penetrates through the compressor compartment 12 and is connected to the evaporator 4. In use, the compressor 6 is installed in the compressor compartment 12, the other components of the refrigeration system are installed in the foam layer 11, and then the compressor 6 is connected to the evaporator 4 through a fourth connecting line and a fifth connecting line, which are connected through a first connecting location 7. Install drier-filter 2 in compressor storehouse 12 among the correlation technique, lead to being provided with drier-filter 2 in the compressor storehouse 12, drier-filter 2's connecting line, parts such as compressor 6 and compressor 6's connecting line, compressor 6 need just can be connected with evaporimeter 4 through the connection position more than two or two, make the connection position quantity in the compressor storehouse 12 more, and the space in the compressor storehouse is limited, the connection position that the operating quantity is more in compressor storehouse 12 is very inconvenient, and the connection position leads to the risk of revealing to improve more. Compared with the prior art, the connection position required for connecting the compressor 6 and the evaporator 4 is reduced, the connection positions of the drying filter 2, the condenser 3 and the evaporator 4 are moved into the foaming layer 11, the number of the connection positions in the compression bin is further reduced, the cost is saved, and the reliability of the refrigeration equipment is improved.

In the embodiment of the present application, as shown in fig. 1, for example, the refrigeration system includes a compressor 6, a first condenser 3, a condensation preventing pipe 9, a second condenser 3, a dry filter 2, and an evaporator 4, which are connected in this order. It should be understood that the refrigeration system may be comprised of any other suitable components.

In an embodiment of the present application, as shown in fig. 1, a sixth connecting pipeline and a seventh connecting pipeline are arranged in the compressor chamber 12, the other end of the compressor 6, the sixth connecting pipeline and the seventh connecting pipeline are connected in sequence, the seventh connecting pipeline passes through the compressor chamber 12 and is connected with the condenser 3, and the sixth connecting pipeline and the seventh connecting pipeline are connected through the second connecting position 8. When the refrigeration compressor is used, the compressor 6 is installed in the compressor bin 12, other components of the refrigeration system are installed in the foaming layer 11 above the compressor bin 12, then the compressor 6 is connected with the condenser 3 through the five connecting pipelines and the seventh connecting pipeline, and the five connecting pipelines and the seventh connecting pipeline are connected through the second connecting position 8. In the related art, the compressor housing 12 includes many components such as the filter-drier 2, the compressor 6, and the connecting lines, and therefore, the compressor 6 is difficult to be connected to the condenser 3 through the connecting lines, and a plurality of connecting lines are required to connect the compressor 6 to the condenser 3 using two or more connecting positions. Compared with the related art, the number of the connecting positions required for connecting the compressor 6 and the condenser 3 is effectively reduced, the cost is saved, and the reliability of the refrigeration equipment is improved.

In the embodiment of the present application, the compressor 6 is connected to the pipeline by a screw or by welding.

In one embodiment of the present application, as shown in fig. 1, a heat generating component is provided in the case 1, and a heat insulating member 14 is provided between the heat generating component and the tank container of the case 1. When the heat insulation box is used, the heat insulation part 14 is arranged between the heating part and the box liner, and heat dissipated by the heating part is separated from the box liner through heat insulation, so that the box liner is prevented from being influenced by heat transferred to the box liner.

In the embodiment of the present application, the heat generating component is, for example, an air return heat exchange pipe or an evaporator defrosting component or a capillary tube 16 or an anti-condensation pipe 9. It should be understood that the heat generating component may be any other suitable heat generating component within the housing 1.

In one embodiment of the present application, as shown in fig. 1, the heat insulating member 14 includes a heat insulating housing 15, the heat insulating housing 15 is fixedly installed in the case 1, and the heat generating component is enclosed by the heat insulating housing 15. When the refrigerator is used, the heat-generating components are wrapped in the heat-insulating shell 15, heat of the heat-generating components is prevented from leaking, the influence on a refrigerating compartment is avoided, and the heat-insulating shell 15 is fixedly installed in the box body 1, so that the heat-insulating shell 15 can play a role in fixedly supporting the heat-generating components.

According to an embodiment of the second aspect of the present application, there is provided an air-return heat exchange tube assembly, as shown in fig. 2, comprising an insulating member 10, a dry filter 2 and an air-return heat exchange tube 5, wherein the dry filter 2 and the air-return heat exchange tube 5 are located in the insulating member 10.

According to the air-return heat exchange tube assembly of the embodiment of the second aspect of the application, the drying filter 2 and the air-return heat exchange tube 5 are arranged in the heat preservation part 10, the drying filter 2 and the air-return heat exchange tube 5 can be prefabricated and arranged together in advance, so that the drying filter 2 and the air-return heat exchange tube 5 are used as components, the connection of the drying filter 2, the capillary tube 16 and the air-return heat exchange tube 5 in narrow spaces such as a compressor bin 12 is avoided, the operation space can be effectively improved, the connection reliability of the drying filter 2, the capillary tube 16 and the air-return heat exchange tube 5 is improved, and the equipment installation time can be reduced.

In the embodiment of the application, the air return heat exchange tube assembly can be applied to refrigeration equipment such as a refrigerator or an ice chest. It should be understood, however, that the specific application scenario of the return air heat exchange tube assembly is not limited.

In one embodiment of the present application, the filter-drier assembly 2 is in communication with a capillary tube 16, and the return air heat exchanger tube 5 is configured with an inner concave surface that contacts the surface of the capillary tube 16. In use, the capillary tube 16 is in contact with the return air heat exchange tube 5 by mounting the capillary tube 16 on an inner concave surface of the return air heat exchange tube 5. Compared with the related art in which the capillary tube 16 is directly contacted with the air-return heat exchange tube 5, the present embodiment can increase the contact area between the capillary tube 16 and the air-return heat exchange tube 5.

Finally, it should be noted that the above embodiments are only for illustrating the present application, and do not limit the present application. Although the present application has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalents may be made to the technical solutions of the present application without departing from the spirit and scope of the technical solutions of the present application, and the technical solutions of the present application should be covered by the claims of the present application.

Claims (12)

1. A refrigeration apparatus, comprising:

a box body, wherein a foaming layer is arranged inside the box body;

and the refrigerating system is connected with the box body and comprises a dry filter, and the dry filter is arranged in the foaming layer.

2. The refrigeration apparatus as recited in claim 1 further comprising a capillary tube and a return air heat exchange tube, said capillary tube being connected to said desiccant filter, said capillary tube being in contact with said return air heat exchange tube and being located within said foam layer.

3. The refrigeration appliance according to claim 2, wherein the capillary tube, the return air heat exchange tube and the dry filter are connected by a heat insulating member.

4. A refrigeration appliance as recited in claim 2 wherein said filter-drier is connected to a capillary tube and said return air heat exchange tube is configured with an inner concave surface that contacts a surface of said capillary tube.

5. The refrigeration device as claimed in any one of claims 1 to 4, wherein the refrigeration system comprises a condenser and an evaporator, the condenser and the evaporator are connected by a connecting pipeline, and the connecting pipeline is positioned in the foaming layer.

6. The refrigeration apparatus as claimed in claim 5, wherein the connection line includes a first connection line and a second connection line, the dry filter is connected to the condenser through the first connection line, and the dry filter is connected to the evaporator through the second connection line.

7. The refrigeration apparatus as set forth in claim 5 wherein said refrigeration system includes a condensation preventing tube, and a third connecting line between said condenser and said condensation preventing tube is located within said foam layer.

8. The refrigeration equipment as claimed in claim 5, wherein the refrigeration system comprises a compressor, the compressor is arranged in a compressor bin in the box body, a fourth connecting pipeline and a fifth connecting pipeline are arranged in the compressor bin, one end of the compressor is connected with one end of the fourth connecting pipeline, the other end of the fourth connecting pipeline is connected with the fifth connecting pipeline through a first connecting position, and the fifth connecting pipeline penetrates through the compressor bin and is connected with the evaporator.

9. The refrigeration equipment as claimed in claim 8, wherein a sixth connecting pipeline and a seventh connecting pipeline are arranged in the compressor bin, the other end of the compressor, the sixth connecting pipeline and the seventh connecting pipeline are connected in sequence, the seventh connecting pipeline penetrates through the compressor bin and is connected with the condenser, and the sixth connecting pipeline and the seventh connecting pipeline are connected through a second connecting position.

10. A cold appliance according to any of claims 1-4, wherein a heat generating component is arranged in the cabinet, and a heat insulating member is arranged between the heat generating component and the cabinet bladder of the cabinet.

11. The air return heat exchange tube assembly is characterized by comprising a heat insulation piece, a drying filter and an air return heat exchange tube, wherein the drying filter and the air return heat exchange tube are located in the heat insulation piece.

12. A return air heat exchange tube assembly according to claim 11, wherein the dry filter is in communication with a capillary tube, and the return air heat exchange tube is configured with an inner concave surface that contacts a surface of the capillary tube.

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