CN216048516U - Return air pipe assembly and refrigeration equipment - Google Patents
Return air pipe assembly and refrigeration equipment Download PDFInfo
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- CN216048516U CN216048516U CN202122466734.7U CN202122466734U CN216048516U CN 216048516 U CN216048516 U CN 216048516U CN 202122466734 U CN202122466734 U CN 202122466734U CN 216048516 U CN216048516 U CN 216048516U
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- tee
- muffler
- capillary tube
- air return
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Abstract
The utility model discloses a return air pipe assembly and refrigeration equipment, and relates to the technical field of refrigeration equipment. The method specifically comprises the following steps: the third port of the first tee joint is connected to the outlet end of the heat exchanger; the first end of the air return pipe is connected to the first port of the three-way piece; the capillary tube is positioned in the air return tube, part of the capillary tube extends out of the second port of the first tee piece and then is connected with the inlet end of the heat exchanger; and the second port of the first three-way piece is a reducing port. Aiming at reducing the manufacturing difficulty of the inserted air return pipe component.
Description
Technical Field
The utility model relates to the technical field of refrigeration equipment, in particular to a return air pipe assembly and refrigeration equipment.
Background
As is well known, the heat exchange efficiency between the capillary tube and the air return tube in the air return tube assembly is improved, and the energy consumption of the refrigerator can be effectively saved. There are many structures for heat exchange between the capillary tube and the air return tube in the air return tube assembly. The optimal structure is that the capillary tube is inserted into the muffler.
However, in the mass-produced refrigerator products, the structure of the inner insertion return air duct assembly is rarely used. Because the manufacture of the inserted air return pipe assembly is complex, the defect of easy leakage exists. Therefore, how to reduce the manufacturing difficulty of the inserted return air pipe assembly and avoid leakage becomes a technical problem to be solved urgently.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a return air pipe assembly and refrigeration equipment, aiming at reducing the manufacturing difficulty of an inserted return air pipe assembly.
In order to achieve the above object, the present invention provides an air return pipe assembly, including:
the third port of the first tee joint is connected to the outlet end of the heat exchanger;
the first end of the air return pipe is connected to the first port of the three-way piece;
the capillary tube is positioned in the air return tube, part of the capillary tube extends out of the second port of the first tee piece and then is connected with the inlet end of the heat exchanger; and the second port of the first three-way piece is a reducing port.
In an embodiment of the present application, a diameter of the main body of the first three-way component is equal to a diameter of the air return pipe.
In an embodiment of the present application, the axes of the second port and the first port coincide with each other.
In an embodiment of the present application, the second port is in line-surface contact with the capillary tube and/or the first port is in line-surface contact with the muffler.
In an embodiment of the present application, an axis of the third port is perpendicular to an axis of the first port and the second port.
In an embodiment of the present application, the second port and the capillary tube and/or the first port and the gas return tube are connected by a rockring welding process.
In an embodiment of the present application, the first through opening is a flare.
In an embodiment of this application, still include second tee bend, the first opening of second tee bend with the second end connection of muffler, keep away from on the capillary the one end of first tee bend is followed the second opening of second tee bend stretches out the back and is connected with the exit end of compressor, the entry end of compressor with the third port of second tee bend is connected.
The application also discloses a refrigeration device, which comprises the return air pipe assembly.
By adopting the technical scheme, the second through hole on the first three-way component is set to be a necking. The welding between the necking and the capillary tube is convenient to realize, and therefore the production difficulty of the air return assembly is reduced.
Drawings
The utility model is described in detail below with reference to specific embodiments and the attached drawing figures, wherein:
fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 2 is a cross-sectional view at a in fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and examples. It should be understood that the following specific examples are only for illustrating the present invention and are not to be construed as limiting the present invention.
As shown in fig. 1 and 2, in order to achieve the above object, the present invention provides an air return pipe 30 assembly, including:
a third port of the first three-way part 20 is connected to the outlet end of the heat exchanger;
a first end of the air return pipe 30 is connected to the first port of the three-way piece;
the capillary tube 10 is positioned in the air return tube 30, and is partially extended out of the second port of the first tee piece 20 and then is connected with the inlet end of the heat exchanger; wherein, the second port of the first three-way component 20 is a necking.
Specifically, the muffler 30 assembly comprises a first three-way part 20, wherein the first three-way part 20 is made of a metal material so as to facilitate welding between the first three-way part 20 and the muffler 30 and between the first three-way part and the capillary tube 10. The first three-way member 20 has three ports, which are a first port, a second port, and a third port, respectively.
The muffler 30 includes two ends, a first end and a second end. Which is mainly used to return the refrigerant to the compressor.
The capillary tube 10 is used to convert the gaseous refrigerant into liquid refrigerant, and then to flow through the evaporator.
The material used for the muffler 30 and the capillary 10 is the same as the material used for the first tee 20. So as to achieve welding between the muffler 30, the capillary tube 10, and the first three-way member 20. Of course, according to the design requirement, other different materials can be adopted, and are not limited herein.
The specific connection mode is as follows:
the third port of the first tee 20 is connected to the outlet end of a heat exchanger, wherein the heat exchanger is an evaporator. A first end of the air return pipe 30 is connected to the first port of the first three-way member 20. The capillary tube 10 is disposed inside the muffler 30 and does not contact the inner wall of the muffler 30. By adopting the structure, a larger heat exchange area is ensured between the capillary tube 10 and the air return tube 30, so that the heat exchange efficiency is improved. One end of the capillary tube 10 close to the first three-way component 20 extends into the first three-way component 20 and penetrates out of the second opening of the first three-way component 20, and the capillary tube 10 after penetrating out is connected with the inlet end of the heat exchanger. Wherein the second port of the first tee 20 is fixedly connected to the outer surface of the capillary 10. The first port of the first three-way component 20 is fixedly connected to the outer surface of the air return pipe 30. At this time, the first and second ports are all closed, and the third through hole is an effective through hole communicating with the air return pipe 30.
The second opening of the first three-way member 20 is set to be a reduced opening, and a gap is left between the reduced opening and the capillary tube 10, so that the capillary tube 10 can pass through the reduced opening. The necking is performed after the capillary tube 10 passes through the necking. Thereby reducing the difficulty of welding between the first tee 20 and the capillary 10.
By adopting the above technical scheme, the second through hole on the first three-way component 20 is set to be a necking. The welding between the necking and the capillary tube 10 is convenient to realize, and therefore the production difficulty of the air return assembly is reduced.
In an embodiment of the present application, a diameter of the main body of the first three-way component 20 is equal to a diameter of the muffler 30.
Specifically, the aperture of the main body of the first three-way member 20 is equal to the aperture of the muffler 30. So that the refrigerant keeps stable transition in the muffler 30 and the first three-way member 20, the resistance to the refrigerant is reduced, and the heat exchange efficiency is improved.
In an embodiment of the present application, the axes of the second port and the first port coincide with each other.
Specifically, the axes of the second port and the first port of the first three-way member 20 coincide with each other. When the air return pipe 30 is connected to the first port of the first three-way member 20, the axis of the air return pipe 30 coincides with the axis of the second port and the axis of the first port of the first three-way member 20. And then the capillary tube 10 is passed out of the necking from the air return pipe 30. The capillary tube 10 can be centered in the muffler 30. Contact between the capillary tube 10 and the inner wall of the muffler 30 is avoided. Thereby improving the heat exchange efficiency.
In an embodiment of the present application, the second port is in line-surface contact with the capillary tube 10 and/or the first port is in line-surface contact with the muffler 30.
Specifically, a straight line segment is arranged at the joint between the second port and the capillary 10. The straight line section extends from the throat in a direction away from the first tee 20. So as to be convenient for the full infiltration of the welding flux during welding and further ensure the welding reliability.
A straight line section is arranged at the joint between the first port and the air return pipe 30. The straight line segment extends from the first port in a direction away from the first tee 20. So as to be convenient for the full infiltration of the welding flux during welding and further ensure the welding reliability.
In an embodiment of the present application, an axis of the third port is perpendicular to an axis of the first port and the second port.
Specifically, the axis where the third port is located is perpendicular to the axis where the first port and the second port are located. So as to facilitate the installation and fixation of the first three-way element 20.
In an embodiment of the present application, the second port and the capillary tube 10 and/or the first port and the return air tube 30 are connected by a rockring welding process.
Specifically, the Rockwell ring welding process utilizes the cold extrusion plastic deformation principle to achieve the tight connection between non-ferrous metals, and is specially used for connecting non-ferrous metal pipes with small diameters. The sealing structure has the advantages of good sealing effect, high connection strength and the like.
In an embodiment of the present application, the first through opening is a flare.
The first through opening is a flared opening, so that the connection between the first three-way part 20 and the air return pipe 30 is conveniently realized.
In an embodiment of this application, still include second tee bend 40, the first opening of second tee bend 40 with the second end of muffler 30 is connected, keep away from on the capillary 10 the one end of first tee bend 20 is followed the second opening of second tee bend 40 stretches out the back and is connected with the exit end of compressor, the entry end of compressor with the third opening of second tee bend 40 is connected.
Specifically, a second tee fitting 40 is further connected to a second end of the muffler 30. The structure is identical to that of the first three-way member 20. Wherein, the first port of the second three-way component 40 is connected with the second end of the air return pipe 30. The adopted connection mode is welding. Thereby guarantee the joint strength between the first opening of second tee bend 40 and muffler 30, avoid revealing.
The end of the capillary tube 10 remote from the first tee 20 extends from the second port of the second tee 40 and is connected to the outlet end of the compressor. The connection mode is welding.
The inlet end of the compressor is connected to the third port of the second tee 40. Since the first and second ports of the second three-way member 40 are connected to the capillary tube 10 in a sealed state, the third port of the second three-way member 40 is an effective through hole for communicating the air return pipe 30.
The application also discloses a refrigeration device, which comprises the muffler 30 assembly as described in any one of the above items.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the technical solutions of the present invention, which are made by using the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. An air return tube assembly, comprising:
the third port of the first tee joint is connected to the outlet end of the heat exchanger;
the first end of the air return pipe is connected to the first port of the three-way piece;
the capillary tube is positioned in the air return tube, part of the capillary tube extends out of the second port of the first tee piece and then is connected with the inlet end of the heat exchanger; and the second port of the first three-way piece is a reducing port.
2. The muffler assembly of claim 1, wherein a bore of the main body portion of the first tee member is equal to a bore of the muffler.
3. The muffler assembly of claim 1, wherein the axes of the second port and the first port are coincident with each other.
4. The muffler assembly of claim 1, wherein the second port is in line-to-plane contact with the capillary tube and/or the first port is in line-to-plane contact with the muffler.
5. The muffler assembly of claim 1, wherein the third port is located on an axis that is perpendicular to an axis of the first and second ports.
6. The muffler assembly of claim 1, wherein the second port is coupled to the capillary tube and/or the first port is coupled to the muffler using a Rockwell Ring welding process.
7. The muffler assembly of claim 1, wherein the first port is flared.
8. The muffler assembly of claim 1, further comprising a second tee, wherein the first port of the second tee is connected to the second end of the muffler, the end of the capillary tube distal from the first tee extends out of the second port of the second tee and is connected to the outlet of the compressor, and the inlet of the compressor is connected to the third port of the second tee.
9. A refrigeration apparatus comprising the return air duct assembly as claimed in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122466734.7U CN216048516U (en) | 2021-10-13 | 2021-10-13 | Return air pipe assembly and refrigeration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122466734.7U CN216048516U (en) | 2021-10-13 | 2021-10-13 | Return air pipe assembly and refrigeration equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216048516U true CN216048516U (en) | 2022-03-15 |
Family
ID=80548766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122466734.7U Active CN216048516U (en) | 2021-10-13 | 2021-10-13 | Return air pipe assembly and refrigeration equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216048516U (en) |
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2021
- 2021-10-13 CN CN202122466734.7U patent/CN216048516U/en active Active
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