CN215638159U - Air return pipe assembly, refrigerating system and refrigerator - Google Patents
Air return pipe assembly, refrigerating system and refrigerator Download PDFInfo
- Publication number
- CN215638159U CN215638159U CN202121428348.2U CN202121428348U CN215638159U CN 215638159 U CN215638159 U CN 215638159U CN 202121428348 U CN202121428348 U CN 202121428348U CN 215638159 U CN215638159 U CN 215638159U
- Authority
- CN
- China
- Prior art keywords
- return pipe
- air return
- muffler
- capillary tube
- capillary
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model provides an air return pipe assembly, a refrigerating system and a refrigerator, and belongs to the field of refrigerators. This muffler subassembly includes: an air return pipe; at least one capillary tube distributed at an outer surface of the muffler; the fixing piece is used for coating all the capillary tubes and the air return pipe; and the heat conduction material is filled in a gap between the at least one capillary tube and the air return pipe inside the fixing piece. The utility model also provides a refrigeration system comprising the air return pipe assembly and a refrigerator comprising the refrigeration system. The air return pipe assembly, the refrigeration system and the refrigerator can enhance the heat exchange effect between the capillary pipe and the air return pipe, so that the refrigeration efficiency is improved.
Description
Technical Field
The utility model relates to the field of refrigerators, in particular to an air return pipe assembly, a refrigerating system and a refrigerator.
Background
In the existing refrigeration system of the refrigerator, after flowing from an evaporator to an air return pipe of a compressor, a refrigerant flows from a condenser to a capillary tube, and then heat exchange is carried out, so that the high-pressure refrigerant is supercooled, and the refrigerating capacity is improved.
In order to improve the heat exchange efficiency between the muffler and the capillary tube, the common technical scheme in the prior art includes the following several: firstly, the capillary tube and the air return pipe are combined by adopting a tin soldering mode, and the outer side of the capillary tube and the air return pipe is wrapped with an aluminum foil, so that the capillary tube and the air return pipe exchange heat. The outer diameter of the capillary tube for the refrigerator is more than 1.0-3.0mm, the outer diameter of the air return pipe is more than 5.0-8.0mm, tin solder is filled between the capillary tube and the air return pipe, and the heat exchange performance between the capillary tube and the air return pipe is poor due to the fact that the outer diameter of the capillary tube is small and the gap between the capillary tube and the air return pipe cannot be fully filled by the tin solder in the actual process. On the other hand, the soldering process is complex, and the cost and the energy consumption are higher. And secondly, the capillary tube and the air return pipe are fixed together by adopting an aluminum foil or a heat shrink pipe, and the capillary tube and the air return pipe are in line contact, so that the heat exchange area is small, and the heat exchange effect is not as good as that of a welding mode. Thirdly, a groove 5 is punched on the muffler 2 for placing the capillary 1 (see fig. 1) to increase the contact area between the capillary and the muffler, which requires an additional punching process and increases the processing cost.
SUMMERY OF THE UTILITY MODEL
It is an object of the first aspect of the present invention to provide a muffler assembly that enhances the heat exchange between the capillary tube and the muffler.
It is a further object of the present invention to ensure effective contact with the capillary and return air tubes, ensuring a heat dissipation area.
It is an object of the second aspect of the present invention to provide a refrigeration system including the above-mentioned return air pipe assembly, which can improve the refrigeration efficiency of the refrigeration system.
An object of the third aspect of the present invention is to provide a refrigerator including the above refrigeration system, which can improve refrigeration efficiency.
In particular, the present invention provides a muffler assembly comprising:
an air return pipe;
at least one capillary tube distributed at an outer surface of the muffler;
the fixing piece is used for coating all the capillary tubes and the air return pipe; and
and the heat conduction material is filled in a gap between the at least one capillary tube and the air return pipe inside the fixing piece.
Optionally, an outer surface of each of the capillaries is in contact with the muffler.
Optionally, each of the capillaries is parallel to the muffler.
Optionally, all the capillaries are uniformly arranged along the circumference of the muffler.
Optionally, the fixing is an aluminum foil or a heat shrink film.
Optionally, the heat conductive material is a heat conductive silicone grease having a preset heat conductivity coefficient and being in a grease state within a preset temperature range.
Optionally, the number of capillaries is 2.
Optionally, the ratio of the outer diameter of the muffler to each of the capillaries is in the range of 1.5 to 8.
In particular, the utility model also provides a refrigeration system comprising at least one muffler assembly as described in any one of the above.
Particularly, the utility model further provides a refrigerator comprising the refrigeration system.
According to the utility model, the capillary tube is arranged along the outer surface of the air return pipe, the capillary tube and the air return pipe are wrapped by the fixing piece, and then the heat conduction material is filled between the outer surface of the capillary tube and the outer surface of the air return pipe.
Further, the outer surface of each capillary tube is in contact with the muffler. Because set up capillary and muffler into direct contact, can be so that the heat of the two directly exchanges, consequently the heat transfer effect preferred can further strengthen heat transfer effect, improves refrigerating system's refrigeration efficiency.
Further, the heat conduction material is heat conduction silicone grease which has a preset heat conduction coefficient and is in a grease state within a preset temperature range. The heat conduction silica gel in the grease state can ensure effective contact with the capillary and the air return pipe, and the heat dissipation area is ensured.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the utility model will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
FIG. 1 is a schematic cross-sectional view of a prior art capillary tube and muffler;
FIG. 2 is a schematic connection block diagram of a refrigeration system according to one embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of a return air duct assembly according to one embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of a return air duct assembly according to another embodiment of the present invention;
fig. 5 is a schematic connection block diagram of a refrigeration system according to another embodiment of the present invention.
Detailed Description
FIG. 2 is a schematic connection block diagram of a refrigeration system according to one embodiment of the present invention. Fig. 3 is a cross-sectional schematic view of a muffler assembly 100 according to one embodiment of the present invention. As shown in fig. 2, a refrigeration system of a refrigerator or freezer generally includes a compressor 201, a condenser 202 and an evaporator 203 connected in sequence, and a refrigerant flows from the compressor 201, sequentially flows through the condenser 202 and the evaporator 203, and then flows back to the compressor 201. The condenser 202 and the evaporator 203 are connected by a capillary tube 20, and the evaporator 203 and the compressor 201 are connected by a muffler 10. The present invention provides a heat exchange structure between the return pipe and the capillary tube 20, so as to form the return pipe assembly 100 of the present invention. As shown in fig. 3, in one embodiment, the muffler assembly 100 includes a muffler 10, at least one capillary tube 20, a fixing member 30, and a heat conductive material 40. The interior of each capillary tube 20 of the muffler 10 is used for circulating a refrigerant. The individual capillaries 20 are distributed at the outer surface of the muffler 10. Since the diameter of the air return pipe 10 is generally larger than that of the capillary tube 20, for example, the outer diameter of the capillary tube 20 for a refrigerator is generally 1-3mm, and the outer diameter of the air return pipe 10 is generally 5-8mm, this provides a condition for arranging a plurality of capillary tubes 20 on the outer surface of the air return pipe 10, although the size of the air return pipe 10 is larger than that of the capillary tubes 20, only one capillary tube 20 may be arranged on the outer surface of the air return pipe 10 according to the arrangement requirement, as shown in the embodiment shown in fig. 1. Here, each capillary tube 20 may or may not be in contact with the muffler 10, a part of the capillary tubes 20 may be in contact with the muffler 10, all the capillary tubes 20 may be in contact with the muffler 10, or all the capillary tubes 20 may not be in contact with the muffler 10, which is not limited herein. The relative position of each capillary tube 20 and the muffler 10 is not limited, for example, each capillary tube 20 may be disposed parallel to the muffler 10 (see fig. 2), or may be disposed with an angle between the axes of the two, and of course, in some embodiments, a part of the capillary tubes 20 may be parallel to the muffler 10, and the other part of the capillary tubes 20 may be disposed with an angle to the muffler 10. Even the capillary tube 20 may be arranged wound around the muffler 10. Of course, in practical applications, the relative position of the capillary tube 20 and the muffler 10 can be determined according to the convenience of arrangement, and is not limited herein. The fixing member 30 is used to cover all the capillary tubes 20 and the muffler 10, and the fixing member 30 may be a flexible member to tightly cover all the capillary tubes 20 and the muffler 10, or may have a rigid member with a fixed shape adapted thereto, as long as all the capillary tubes 20 and the muffler 10 can be covered together, that is, the fixing member 30 can contain all the capillary tubes 20 and the muffler 10. The heat conductive material 40 is filled in a gap between the at least one capillary tube 20 and the muffler 10 inside the fixing member 30.
In the embodiment, the capillary tube 20 is arranged along the outer surface of the air return pipe 10, and the capillary tube 20 and the air return pipe 10 are wrapped by the fixing member 30, and then the heat conduction material 40 is filled between the outer surface of the capillary tube 20 and the outer surface of the air return pipe 10, because the heat conduction material 40 has heat conduction performance, which is equivalent to indirectly increasing the heat dissipation area between the capillary tube 20 and the air return pipe 10, the heat exchange effect between the capillary tube 20 and the air return pipe 10 can be enhanced, and thus the refrigeration efficiency of the refrigeration system where the air return pipe assembly 100 is located is improved.
In a further embodiment, the outer surface of each capillary tube 20 is in contact with the muffler 10. Because set up capillary 20 and muffler 10 into direct contact, can make the heat direct interchange of the two, consequently the heat transfer effect is preferred, can further strengthen heat transfer effect, improves refrigerating system's refrigeration efficiency.
In one embodiment, each capillary tube 20 is parallel to the muffler 10.
Fig. 4 is a cross-sectional schematic view of a muffler assembly 100 according to another embodiment of the present invention. In one embodiment, all of the capillaries 20 are uniformly arranged along the circumference of the muffler 10. In the embodiment shown in fig. 4, the muffler assembly 100 includes two capillary tubes 20, and the two capillary tubes 20 are oppositely arranged along the radial direction of the muffler 10, that is, uniformly arranged along the circumferential direction of the muffler 10. Of course, in other embodiments not shown, the number of capillaries 20 may also be 3, 4 or more, and is not limited thereto. This embodiment is through with the capillary 20 equipartition in muffler 10 circumference, can guarantee the homogeneity of heat transfer, improves the heat transfer effect.
In one embodiment, the ratio of the outside diameters of the muffler 10 and each capillary tube 20 is in the range of 1.5 to 8, for example, the ratio of the outside diameters of the muffler 10 and the capillary tube 20 is 1.5, 5/3, or 8.
In one embodiment, the securing member 30 is an aluminum foil or a heat shrink film. The aluminum foil and the heat-shrinkable film have certain flexibility, so that all the capillary tubes 20 and the air return pipe 10 can be tightly wrapped, the assembly is convenient, and the volume of the whole air return pipe assembly 100 is reduced as much as possible, so that the occupied space is reduced.
In some embodiments of the present invention, the heat conductive material 40 is a heat conductive silicone grease having a predetermined heat conductivity and being in a grease state within a predetermined temperature range. In one embodiment, the predetermined temperature range includes an operating temperature range of the refrigeration system in which the muffler assembly 100 is located, that is, the operating temperature range of the refrigeration system is within the predetermined temperature range. In one embodiment, the predetermined temperature range is-50 deg.C-230 deg.C, i.e. the heat-conducting silica gel can maintain the state of grease for a long period of time in the temperature range of-50 deg.C-230 deg.C. The heat-conducting silica gel in the grease state can ensure effective contact with the capillary tube 20 and the air return tube 10, and ensure the heat dissipation area.
In one embodiment, the predetermined thermal conductivity of the thermally conductive silicone grease is 1-2 w/(m.k). The preset heat conductivity coefficient can be specifically selected according to the heat exchange requirement.
The present invention also provides a refrigeration system that, in one embodiment, includes at least one muffler assembly 100 of any one or combination of the above embodiments. That is, when the refrigeration system includes a plurality of capillary tubes 20, the muffler assembly 100 of the refrigeration system may include only one capillary tube 20, or may include a plurality of capillary tubes 20.
In the refrigeration system of the embodiment, the capillary tube 20 is arranged along the outer surface of the air return pipe 10, and the capillary tube 20 and the air return pipe 10 are wrapped by the fixing member 30, and then the heat conduction material 40 is filled between the outer surface of the capillary tube 20 and the outer surface of the air return pipe 10, so that the heat exchange effect between the capillary tube 20 and the air return pipe 10 can be enhanced due to the heat conduction property of the heat conduction material 40, and the refrigeration efficiency of the refrigeration system where the air return pipe assembly 100 is located is improved.
In one embodiment, as shown in fig. 2, the capillary tube 20 of the muffler assembly 100 may be disposed parallel to the muffler 10.
Fig. 5 is a schematic connection block diagram of a refrigeration system according to another embodiment of the present invention. In another embodiment, as shown in fig. 5, the capillary tube 20 may also be disposed around the muffler 10.
The utility model also provides a refrigerator comprising the refrigeration system in any embodiment. According to the refrigerator of the embodiment, the capillary tube 20 is arranged along the outer surface of the air return pipe 10 and is wrapped by the fixing piece 30, and then the heat conduction material 40 is filled between the outer surface of the capillary tube 20 and the outer surface of the air return pipe 10, so that the heat exchange effect between the capillary tube 20 and the air return pipe 10 can be enhanced due to the heat conduction property of the heat conduction material 40, and the refrigeration efficiency of a refrigeration system where the air return pipe assembly 100 is located is improved.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the utility model have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the utility model may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the utility model. Accordingly, the scope of the utility model should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. An air return tube assembly, comprising:
an air return pipe;
at least one capillary tube distributed at an outer surface of the muffler;
the fixing piece is used for coating all the capillary tubes and the air return pipe; and
and the heat conduction material is filled in a gap between the at least one capillary tube and the air return pipe inside the fixing piece.
2. The muffler assembly of claim 1,
the outer surface of each capillary tube is in contact with the air return pipe.
3. The muffler assembly of claim 1,
each of the capillaries is parallel to the muffler.
4. The return air duct assembly of claim 3,
all the capillary tubes are uniformly arranged along the circumferential direction of the air return pipe.
5. The muffler assembly according to any one of claims 1 to 4,
the fixing piece is an aluminum foil or a heat-shrinkable film.
6. The muffler assembly according to any one of claims 1 to 4,
the heat conduction material is heat conduction silicone grease which has a preset heat conduction coefficient and is in a grease state within a preset temperature range.
7. The muffler assembly according to any one of claims 1 to 4,
the number of the capillaries is 2.
8. The muffler assembly according to any one of claims 1 to 4,
the ratio of the outer diameter of the muffler to the outer diameter of each of the capillaries is in the range of 1.5 to 8.
9. A refrigeration system comprising at least one muffler assembly according to any one of claims 1 to 8.
10. A refrigerator comprising the refrigeration system of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121428348.2U CN215638159U (en) | 2021-06-25 | 2021-06-25 | Air return pipe assembly, refrigerating system and refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121428348.2U CN215638159U (en) | 2021-06-25 | 2021-06-25 | Air return pipe assembly, refrigerating system and refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215638159U true CN215638159U (en) | 2022-01-25 |
Family
ID=79945776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121428348.2U Active CN215638159U (en) | 2021-06-25 | 2021-06-25 | Air return pipe assembly, refrigerating system and refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215638159U (en) |
-
2021
- 2021-06-25 CN CN202121428348.2U patent/CN215638159U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH024163A (en) | Cooling device for semiconductor element for power | |
| US20160109156A1 (en) | Internal condenser for heat pump water heater | |
| US20060108107A1 (en) | Wound layered tube heat exchanger | |
| US10495383B2 (en) | Wound layered tube heat exchanger | |
| CN215638159U (en) | Air return pipe assembly, refrigerating system and refrigerator | |
| CN111351147A (en) | Radiator and air condensing units | |
| CN101762118A (en) | Micro-channel condenser used for refrigerator | |
| CN106051955A (en) | Heat dissipation assembly of air conditioner outdoor unit and air conditioner outdoor unit | |
| CN203364527U (en) | Double refrigerating system refrigerator | |
| CN116499166A (en) | Refrigerator with a refrigerator body | |
| CN210463384U (en) | Air conditioning system | |
| CN104344641A (en) | Semiconductor cooling refrigerator and hot-end heat exchange device for same | |
| CN210050932U (en) | Closed space refrigerating structure | |
| CN113606675A (en) | Integrated air conditioner and cabinet | |
| CN218348939U (en) | A kind of refrigerator | |
| JP2000241046A (en) | Low temperature apparatus | |
| CN210772501U (en) | Radiator cooling system and air conditioner | |
| CN218348938U (en) | A kind of refrigerator | |
| CN201599991U (en) | Microchannel condenser for refrigerator | |
| CN217560131U (en) | Refrigerating system and refrigerator | |
| CN217464962U (en) | Refrigerator and evaporator | |
| CN204518311U (en) | A kind of heat abstractor of tape insulation heat-conducting pad | |
| CN211854528U (en) | Heat exchanger and refrigerating system | |
| CN216898015U (en) | Refrigerator refrigeration pipe fitting and evaporator | |
| CN213335670U (en) | Heat exchanger, refrigerating system and household electrical appliance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |