CN216384680U

CN216384680U - Low-pressure pipeline system for refrigerator

Info

Publication number: CN216384680U
Application number: CN202122625896.0U
Authority: CN
Inventors: 孔波
Original assignee: HENAN XINFEI REFRIGERATION APPLIANCE CO Ltd
Current assignee: HENAN XINFEI REFRIGERATION APPLIANCE CO Ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-04-26
Anticipated expiration: 2031-10-29

Abstract

The utility model discloses a low-pressure pipeline system for a refrigerator, which comprises an evaporator assembly, a first connecting piece and an evaporator coil, wherein the evaporator coil is made of an aluminum pipe and is wound on the outer wall of the inner container through the first connecting piece; the air return pipe assembly comprises a capillary pipe and an air return pipe, and the air return pipe and the evaporator coil are of an integrated structure; the air return transition pipe is arranged at the other end of the air return pipe; and the protective component is sleeved at the interface of the air return transition pipe and the air return pipe. The protective component is arranged at the interface of the air return pipe and the air return transition pipe, has a double-layer structure, has an anti-corrosion protective effect, has certain strength, and protects the interface from corrosion and fracture. The muffler is coated with the anti-corrosion layer, and the contact parts of the muffler and the capillary are connected together through the anti-corrosion connecting piece, so that the muffler is effectively protected from being corroded by moisture, and the service life of the muffler is ensured.

Description

Low-pressure pipeline system for refrigerator

Technical Field

The utility model relates to a refrigerator, in particular to a low-pressure pipeline system for the refrigerator.

Background

The refrigerator is another name of a refrigerator and a cold storage cabinet and is necessary equipment in places such as markets, cake shops, restaurants and the like. The refrigerating system of the refrigerator is divided into a high-pressure part and a low-pressure part due to different pressures, and the low-pressure part is an important component for ensuring the refrigerating effect of the refrigerator. The evaporator coil of the low-voltage system of the traditional refrigerator has poor pasting effect of the coil and the inner container due to structural limitation, and the heat exchange effect is influenced; in addition, the number of welding interfaces in a low-pressure system is large, the process is complex, the cost is high, the leakage risk is large, and the interfaces are easy to corrode because no protective measures are taken; finally, the air return pipe and the capillary pipe are heated and shrunk by a heat shrink pipe to ensure heat exchange, and the manufacturing process is complex and high in cost. Therefore, how to design a low-pressure system of a refrigerator, which has low cost, convenient installation, high stability and corrosion resistance, is the focus of research in the industry.

Disclosure of Invention

In view of the above, the utility model provides a low-pressure pipeline system for a refrigerator, which has low cost, simple and convenient installation and corrosion resistance.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the low-pressure pipeline system for the refrigerator comprises

The evaporator assembly comprises an inner container, a first connecting piece and an evaporator coil made of an aluminum pipe, wherein the evaporator coil is wound on the outer wall of the inner container through the first connecting piece;

the air return pipe assembly comprises a capillary pipe and an air return pipe, and the air return pipe and the evaporator coil are of an integrated structure;

the air return transition pipe is arranged at the other end of the air return pipe; and

and the protective assembly is sleeved at the interface of the air return transition pipe and the air return pipe and used for protecting the interface.

In a preferred embodiment of the present invention, the protection assembly has a double-layer structure, and includes an inner protection tube sleeved at the interface and an outer protection tube sleeved on the inner protection tube.

In a preferred embodiment of the present invention, the inner sheath is a heat shrinkable tube, and the outer sheath is a joint sheath. The heat shrink tube has corrosion resistance, so that the interface is effectively protected from being corroded by moisture; the joint protection pipe can improve the structural strength of the joint, has good structural stability and avoids fracture in subsequent procedures.

In a preferred embodiment of the present invention, the muffler is coated with an anti-corrosion layer, and the contacting portion of the muffler and the capillary tube is fixedly connected together by a second connecting member. The anti-corrosion layer on the air return pipe not only has an anti-corrosion effect, but also can effectively prevent the capillary from directly contacting with the pipe wall of the air return pipe, so that the air return pipe is protected from being corroded by moisture, and the service life of the air return pipe is ensured; the muffler and the capillary that the cladding has the anticorrosive coating pass through second connecting piece zonulae occludens, effectively guarantee circulation heat transfer effect.

In a preferred embodiment of the present invention, the first connecting member, the second connecting member and the corrosion-resistant layer are all aluminum foil tapes, but may be other covering members with corrosion-resistant properties.

In a preferred embodiment of the present invention, the air return transition pipe is a copper pipe.

By adopting the technical scheme, the beneficial effects are as follows:

the evaporator coil and the air return pipe are of an integrated structure, so that the number of welded junctions is effectively reduced, the processing difficulty is reduced, and the hidden danger of refrigerant leakage is also reduced; the evaporator coil and the air return pipe are both aluminum pipes, so that the cost is reduced, and the evaporator coil and the air return pipe can be directly wound by using an automatic pipe winding machine, so that the rapid installation of the evaporator coil and the air return pipe is realized.

The protective component is arranged at the interface of the air return pipe and the air return transition pipe, has a double-layer structure, has an anti-corrosion protective effect, has certain strength, and protects the interface from corrosion and fracture.

The muffler is coated with the anti-corrosion layer, and the contact parts of the muffler and the capillary are connected together through the anti-corrosion connecting piece, so that the muffler is effectively protected from being corroded by moisture, and the service life of the muffler is ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments of the present invention will be briefly described below. Wherein the drawings are only for purposes of illustrating some embodiments of the utility model and are not to be construed as limiting all embodiments of the utility model.

Fig. 1 is a schematic structural view of the present invention.

FIG. 2 is a schematic cross-sectional view of the contact portion of the capillary tube and the muffler of the present invention.

Fig. 3 is a connection diagram of the return air pipe and the return air transition pipe of the present invention.

The names of the components corresponding to the corresponding reference numerals in the drawings are: 1.1-inner container; 1.2-a first connector; 1.3-evaporator coil; 2.1-capillary; 2.2-muffler; 2.3 an anticorrosive layer; 2.4-second connecting piece; 3-air return transition pipe; 4.1-inner protecting tube; 4.2-outer protecting pipe.

Detailed Description

The following describes embodiments of the present invention in detail with reference to the drawings, which are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are provided, but the scope of the present invention is not limited to the following embodiments.

As shown in figures 1-3, the low-pressure pipeline system for the refrigerator comprises

The evaporator assembly comprises an inner container 1.1, a first connecting piece 1.2 and an evaporator coil 1.3 made of an aluminum pipe, wherein the evaporator coil 1.3 is wound on the outer wall of the inner container 1.1 through the first connecting piece 1.2 (preferably an aluminum foil adhesive tape), and the evaporator coil 1.3 can be wound on the inner container 1.1 through an automatic winding pipe, so that time and labor are saved, and the working efficiency is greatly improved;

the air return pipe assembly comprises a capillary tube 2.1 and an air return pipe 2.2, the air return pipe 2.2 and the evaporator coil 1.3 are of an integrated structure, the number of welded junctions is reduced, the hidden danger of refrigerant leakage is further reduced, and the safety is high;

the air return transition pipe 3, the air return pipe 2.2 and the air return transition pipe 3 are connected together by resistance welding, and the other end of the air return transition pipe 3 is connected with an air return port of the compressor; and

the protection component is sleeved at the interface of the air return transition pipe 3 and the air return pipe 2.2 and used for protecting the interface from being corroded and broken by moisture, and the structural stability of the air return transition pipe 3 is improved.

As shown in fig. 1 and 3, the protection assembly has a double-layer structure, and includes an inner protection tube 4.1 sleeved at the interface and an outer protection tube 4.2 sleeved on the inner protection tube 4.1, wherein the inner protection tube 4.1 is a heat-shrinkable tube, which effectively protects the interface from being corroded by the humid gas; the outer protective pipe 4.2 is a joint protective pipe, so that the structural strength of the joint can be increased, and reworking caused by fracture in the subsequent process is prevented.

As shown in fig. 2, an anticorrosive layer 2.3 is coated on the muffler 2.2, the contact part of the muffler 2.2 and the capillary tube 2.1 is fixedly connected together through a second connecting piece 2.4, the anticorrosive layer 2.3 and the second connecting piece 2.4 both adopt aluminum foil adhesive tapes, the anticorrosive layer 2.3 effectively prevents the capillary tube 2.1 from directly contacting with the muffler 2.2, and the muffler 2.2 is effectively protected; the air return pipe 2.2 and the capillary 2.1 are tightly coated by an aluminum foil adhesive tape, so that the circulating heat exchange is ensured, and the refrigeration effect is effectively ensured.

The processing process of the utility model specifically comprises the following steps: the evaporator coil 1.3 is wound on the inner container 1.1 by the automatic pipe winding machine, and the evaporator coil 1.3 is adhered on the inner container 1.1 by the first connecting piece 1.2, so that the evaporator coil 1.3 is ensured to be adhered on the inner container 1.1, the installation is simple, the time and the labor are saved, and the working efficiency is improved;

an anti-corrosion layer 2.3 is wound on the air return pipe 2.2, so that the air return pipe 2.2 is tightly coated, and the air return pipe 2.2 is protected from being corroded by moisture; then the muffler 2.2 and the capillary 2.1 are coated together by the second connecting piece 2.4, and the coating length can be flexibly selected according to the actual condition of the refrigerator;

one end of the evaporator coil 1.3 is freely extended by a designed length to form an air return pipe 2.2, the air return pipe 2.2 and the air return transition pipe 3 are welded together, and a heat-shrinkable pipe and a joint outer pipe are sequentially sleeved at a welding interface to effectively protect the welding interface; the other end of the return air transition pipe 3 is welded on a return air port of the compressor, so that the quick installation of the compressor is realized.

It is noted that, in the description of the present invention, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.

In the description of the present invention, "upper", "lower", "left", "right", "front", and "rear", etc. are used only to indicate relative positional relationships, and when the absolute position of a described object is changed, the relative positional relationships may also be changed accordingly.

Finally, it should be emphasized that the above-described embodiments are merely preferred embodiments of the present invention, and not limitative of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and equivalents may be made to the embodiments described in the foregoing without inventive faculty, or that equivalents may be substituted for elements thereof. Therefore, any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a low pressure pipe-line system for freezer which characterized in that: comprises that

2. The low pressure piping system for refrigerators according to claim 1, wherein: the protection assembly is of a double-layer structure and comprises an inner protection pipe and an outer protection pipe, wherein the inner protection pipe and the outer protection pipe are arranged at the joint in a sleeved mode.

3. The low pressure piping system for refrigerators according to claim 2, wherein: the inner protecting pipe is a heat-shrinkable pipe, and the outer protecting pipe is a connector protecting pipe.

4. The low pressure piping system for refrigerators according to claim 1, wherein: the air return pipe is coated with an anticorrosive layer, and the contact part of the air return pipe and the capillary is fixedly connected together through a second connecting piece.

5. The low pressure piping system for refrigerators according to claim 4, wherein: the first connecting piece, the second connecting piece and the anticorrosive coating are all aluminum foil adhesive tapes.

6. The low pressure piping system for refrigerator according to any one of claims 1 to 5, wherein: the air return transition pipe is a copper pipe.