CN115218568A

CN115218568A - Refrigerator suction pipe assembly adopting three rows

Info

Publication number: CN115218568A
Application number: CN202110552273.7A
Authority: CN
Inventors: 申东勋
Original assignee: Taixing Electric Co ltd
Current assignee: Taixing Electric Co ltd
Priority date: 2021-04-16
Filing date: 2021-05-20
Publication date: 2022-10-21
Also published as: KR102530057B1; KR20220143480A

Abstract

The invention relates to a refrigerator suction pipe assembly adopting three rows, wherein the suction pipe is provided with three rows of capillaries, two rows of capillaries are welded and jointed, and the rest row is tightly attached to a contraction pipe, thereby improving the heat exchange efficiency, and the refrigerator suction pipe assembly is characterized by comprising the following components: a suction pipe for guiding the refrigerant discharged from the evaporator; a first capillary tube coupled to an outside of the suction tube; a second capillary tube coupled to the outside of the suction tube together with the first capillary tube; a third capillary tube closely attached to the outside of the suction tube; and a contraction tube which contracts while surrounding the outside of the suction tube and the third capillary tube, so that the third capillary tube is closely attached to and fixed to the suction tube.

Description

Refrigerator suction pipe assembly adopting three rows

Technical Field

The present invention relates to a suction pipe assembly for a refrigerator using three rows, and more particularly, to a suction pipe assembly for a refrigerator using three rows, in which three rows of capillaries are formed in a suction pipe, two rows of capillaries are welded and joined, and the remaining one row is tightly combined by a shrinkage tube, thereby improving heat exchange efficiency.

Background

As a storage tool for foods and goods, a refrigerating machine for storing products in a refrigerated state is most commonly and widely used, and in general, a refrigerant is mechanically subjected to a refrigerating cycle of continuous compression, condensation, expansion, and evaporation to make the stored corresponding goods fresh.

In general, a refrigerant is compressed from a low-temperature and low-pressure refrigerant into a high-temperature and high-pressure refrigerant by a compressor driven by an incoming power supply. Then, the refrigerant delivered to the condenser through the connection pipe connected to the compressor is liquefied into a low-temperature high-pressure saturated liquid in the condenser.

The refrigerant is expanded through the capillary tube connected to the condenser to form a low-temperature low-pressure wet saturated vapor state, and the vapor state is evaporated after flowing into the evaporator, thereby absorbing the latent heat of evaporation of the outside air and cooling the refrigerating chamber or the freezing chamber by the effect of cooling the ambient air.

Further, the refrigerant discharged through the suction pipe connected to the evaporator repeatedly flows into the compressor in a low-temperature gas-phase refrigerant state, and then forms a high-temperature and high-pressure vapor in the compressor.

As shown in fig. 1, a refrigeration cycle of a conventional refrigerator is configured such that a refrigerant circulates through a compressor 1, a condenser 2, a blower 3, a capillary tube 4, an evaporator 5, a suction pipe 6, and the compressor 1, and the evaporator 5 is coupled to the capillary tube 4 through which the refrigerant is introduced and to the suction pipe 6 through which the refrigerant passed through the evaporator 5 is discharged.

However, the capillary tube 4 and the suction tube 6 coupled to the evaporator 5 are silver-lead welded to form a tube as shown in fig. 2, the capillary tube 4 having a small diameter and the first copper (Cu) connection tube 7 coupled to the inlet shrinkage tube, and the first copper (Cu) connection tube 7 is high-frequency welded to the aluminum tube 5a on one side of the evaporator 5 to form a tube, thereby introducing the refrigerant into the evaporator 5.

In addition to the discharge of the refrigerant via the evaporator 5, the refrigerant is circulated through a second copper (Cu) connection pipe 8, which is high-frequency welded to the aluminum pipe 5b on the other side of the evaporator 5, and a suction pipe 6, which is silver-lead welded to the aluminum pipe.

As described above, the conventional method of joining the evaporator, the capillary tube and the suction tube requires the first copper (Cu) connection tube 7 and the second copper (Cu) connection tube 8 to be constructed and joined separately, and also requires separate soldering from both sides, and further requires silver-lead soldering and high-frequency soldering, which are different from each other in the soldering method, and thus has problems in that the manufacturing process is complicated, the workability is poor, and the cost is high.

In addition, in the prior art, one capillary tube is welded and fixed on the suction tube, and the problem is that the refrigerating chamber or freezing type cooling efficiency is reduced.

[ Prior Art document ]

[ patent document ]

(patent document 0001) Korean laid-open patent publication No. 10-2007-0102236

(patent document 0002) Korean laid-open patent publication No. 10-2011-0041176

Disclosure of Invention

Accordingly, the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a suction tube assembly for a refrigerator using three rows, in which after two rows of capillary tubes provided outside the suction tube are welded and joined, the remaining one row is tightly coupled and surrounded by a shrink tube, thereby improving heat exchange efficiency.

In order to achieve the above objects, a suction pipe assembly for a refrigerator using three rows according to an embodiment of the present invention comprises: a suction pipe for guiding the refrigerant discharged from the evaporator; a first capillary tube coupled to an outside of the suction tube; a second capillary tube coupled to the outside of the suction tube together with the first capillary tube; a third capillary tube closely attached to the outside of the suction tube; and a contraction tube which contracts while surrounding the outside of the suction tube and the third capillary tube, so that the third capillary tube is closely attached to and fixed to the suction tube.

The suction pipe may be made of SUS or copper material having high corrosion resistance.

The first capillary and the second capillary are formed of SUS or copper material and may be bonded (so-bonding) to the outside of the suction tube.

The shrink tube can be made of polyvinyl chloride (PVC) in order to keep the third capillary tube firmly attached to the suction tube in a non-floating manner.

As described above, according to the refrigerator suction pipe assembly using three rows of capillary tubes according to the present invention, three rows of capillary tubes are applied to the suction pipe, two rows of capillary tubes are welded and bonded to the suction pipe, and the remaining one row of capillary tubes is closely attached to the suction pipe and then tightly fixed by the shrinkage pipe, thereby maximizing heat exchange efficiency and improving product performance.

Drawings

Fig. 1 is a schematic perspective view of a refrigerating apparatus of a general refrigerating cycle.

Fig. 2 is an exploded perspective view showing a combination structure of a vaporizer and a capillary tube and a suction tube according to the related art.

Fig. 3 is a perspective view illustrating a suction pipe assembly for a refrigerator employing three rows according to the present invention.

Fig. 4 is a front perspective view illustrating combination of third capillary tubes of a suction tube assembly for a refrigerator employing three rows according to the present invention.

Fig. 5 is a combined front sectional view illustrating a third capillary tube of a suction tube assembly for a refrigerator employing three rows according to the present invention.

Fig. 6 is a sectional view showing a suction pipe assembly for a refrigerator employing three rows according to the present invention.

Description of the reference symbols

100: suction tube

200: first capillary

210: second capillary

220: third capillary

300: shrinkage pipe

Detailed Description

While the invention is susceptible to various modifications and alternative embodiments, specific embodiments thereof have been shown by way of example in the drawings and are herein described in detail. However, this is not intended to limit the specific embodiments of the present invention, but should be understood to include all modifications, equivalents, and alternatives falling within the spirit and scope of the present invention.

The embodiments of the invention are not intended to be limited to the specific forms shown, but are to be considered in all respects illustrative and not restrictive, the invention being shown and described in detail. Although specific terms are employed herein, they are used in a descriptive sense only and not for purposes of limitation or the scope of the invention described in the patent claims.

In the present specification, the expression "and/or" is used as meaning including at least one of the constituent elements listed in the front and back. The expression "connected to" means that the element is directly connected to or indirectly connected to another element through another element. In this specification, the singular also includes the plural unless specifically mentioned in a sentence. In the specification, the term "comprising" or "the constituent elements, steps, actions and elements including … …" means that one or more other constituent elements, steps, actions and elements are present or added.

The expressions "first and second" are used only for distinguishing a plurality of structures, and do not limit the order or other features between the structures.

In the description of the embodiments, the description that each layer (film), region, pattern or structure is formed on "upper surface (on)" or "lower surface (under)" of the substrate, each side (film), region, pad or pattern includes the direct (d i rect ly) formation or the formation with another layer interposed therebetween. The upper/upper or lower/lower reference of each layer will be described with reference to the accompanying drawings.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

Fig. 3 is a perspective view illustrating a suction pipe assembly for a refrigerator employing three rows according to the present invention, fig. 4 is a combined front perspective view illustrating a third capillary tube of a suction pipe assembly for a refrigerator employing three rows according to the present invention, fig. 5 is a combined front sectional view illustrating a third capillary tube of a suction pipe assembly for a refrigerator employing three rows according to the present invention, and fig. 6 is a sectional view illustrating a suction pipe assembly for a refrigerator employing three rows according to the present invention.

As shown in fig. 3 to 6, the suction pipe assembly for a refrigerator according to the present invention, which employs three rows, comprises: a suction tube 100, a first capillary tube 200, a second capillary tube 210, a third capillary tube 220, and a contraction tube 300.

The suction pipe 100 may guide a refrigerant discharged from an evaporator (not shown) into a compressor (not shown).

One end of the suction pipe 100 is connected to the evaporator, and the other end is connected to the compressor, and the low-temperature refrigerant discharged from the evaporator returns to the compressor through the suction pipe 100.

Suction pipe 100 may be made of SUS or copper material having high corrosion resistance.

The first capillary tube 200 may be coupled to the outside of the suction tube 100.

In addition, the first capillary tube 200 may be welded to the outside of the suction tube 100.

The first capillary 200 may be made of SUS or copper material having high corrosion resistance.

The second capillary tube 210 may be coupled to the outside of the suction tube 100 together with the first capillary tube 200.

In addition, the second capillary tube 210 may be welded to the outside of the suction tube 100.

The second capillary 210 may be made of SUS or copper material having high corrosion resistance.

The third capillary tube 220 is closely attached to the outside of the suction tube 100, and can be closely attached and fixed to the suction tube 100 by means of a shrink tube 300 described below.

In addition, the third capillary 220 may be made of SUS or copper material having high corrosion resistance.

Further, it is preferable that the first capillary 200, the second capillary 210, and the third capillary 220 are bent like the suction tube 100 so that the first capillary 200, the second capillary 210, and the third capillary 220 are bonded to the outer circumferential surface of the suction tube 100.

As a result, the refrigerant flowing through the first capillary tube 200, the second capillary tube 210, and the third capillary tube 220 can be made smooth, and when the capillary tube is mounted in a refrigerator or other refrigeration equipment, the first capillary tube 200, the second capillary tube 210, and the third capillary tube 220 can be also brought into close contact with the suction tube 100, and can be formed into various mounting shapes.

The contraction tube 300 may surround the outside of the suction tube 100 while allowing the third capillary tube 220 to be closely attached to the suction tube 100.

In addition, the contraction tube 300 may be made of polyvinyl chloride (PVC) so that the third capillary tube 220 is stably attached to the suction tube 100 to the maximum extent without play.

In other words, in a state where the suction tube 100 and the first, second, and third

capillary tubes

200, 210, and 220 are positioned inside the shrinkage tube 300, the shrinkage tube 300 is shrunk so that the third capillary tube 220 can be closely attached and fixed to the suction tube 100.

The suction pipe assembly for a refrigerator using three rows according to the present invention constructed as above is applied as follows.

The suction pipe 100 returns the low-temperature refrigerant discharged from the evaporator to the compressor, and the first capillary tube 200 and the second capillary tube 210 are welded and joined to the outside of the suction pipe 100, so that the joining operation is simple and the bonding performance of the first capillary tube 200 and the second capillary tube 210 can be improved.

Further, the first capillary tube 200, the second capillary tube 210, and the third capillary tube 220 are welded to the suction pipe 100, and the third capillary tube 220 is closely attached to the suction pipe 100, so that the first capillary tube 200, the second capillary tube 210, and the third capillary tube 220 cool the refrigerating compartment, the freezing compartment, and the ice compartment of the refrigerator, respectively, and thus cooling efficiency can be improved.

Further, by positioning the suction tube 100 and the first, second, and third

capillary tubes

200, 210, and 220 inside the contraction tube 300, and then contracting the contraction tube 300 and fixing the third capillary tube 220 in close contact with the suction tube 100, the contraction tube 300 can firmly fix not only the third capillary tube 220 but also the first and second

capillary tubes

200 and 210 to the suction tube 100.

Meanwhile, by coupling the plurality of first, second, and third

capillary tubes

200, 210, and 220 to the suction pipe 100, the refrigerants of the first, second, and third

capillary tubes

200, 210, and 220 are supercooled by the low-temperature refrigerant flowing inside the suction pipe 100, and the refrigerant of the suction pipe 100 is superheated by the high-temperature refrigerant of the first, second, and third

capillary tubes

200, 210, and 220, so that heat exchange is achieved in this manner, and thus heat exchange efficiency can be improved by the first, second, and third

capillary tubes

200, 210, and 220.

As described above, the present invention is not limited to the specific preferred embodiments described above, and various modifications can be made by those having ordinary knowledge in the art to which the present invention pertains without departing from the gist of the present invention claimed in the claims, and such modifications are within the scope of the claims.

Claims

1. A refrigerator suction pipe assembly adopting three rows is characterized by comprising a suction pipe, a suction pipe and a suction pipe;

a suction pipe for guiding the refrigerant discharged from the evaporator;

a first capillary tube coupled to an outside of the suction tube;

a second capillary tube coupled to the outside of the suction tube together with the first capillary tube;

a third capillary tube closely attached to the outside of the suction tube; and

and a contraction tube which contracts while surrounding the outside of the suction tube and the third capillary tube, so that the third capillary tube is closely attached to and fixed to the suction tube.

2. The suction pipe assembly for a refrigerator using three rows as claimed in claim 1,

the suction pipe is made of SUS or copper material having high corrosion resistance.

3. The suction pipe assembly for a refrigerator using three rows as claimed in claim 1,

the first capillary and the second capillary are formed of SUS or copper material and are welded and joined to the outside of the suction tube.

4. The suction pipe assembly for a refrigerator using three rows as claimed in claim 1,

the shrink tube is made of polyvinyl chloride so that the third capillary tube is firmly attached to the suction tube in a non-floating manner.