阅读说明：本技术 一种冰箱的双循环制冷系统 (Double-circulation refrigerating system of refrigerator ) 是由 陈开松 刘宏宇 于 2019-09-27 设计创作，主要内容包括：本发明公开了一种冰箱的双循环制冷系统,涉及冰箱技术领域。本发明包括压缩机；压缩机的出口端与冷凝器的入口端通过管路相连接；冷凝器的出口端与过滤器的入口端通过管路相连接；过滤器的出口端与一进三出电动切换阀的入口端通过管路相连接；一进三出电动切换阀的一出口端与一第一输送管道的一端相连接；第一输送管道的另一端、第一蒸发器的一端、第二蒸发器的一端之间通过一第一三通管相连接；一进三出电动切换阀的另外两个出口端分别与第二输送管道的一端和第三输送管道的一端相连接；第二输送管道的另一端与第一蒸发器的另一端相连接。本发明可以解决当前制冷系统中制冷剂迁移问题,确保制冷系统的循环效率更高。(The invention discloses a double-circulation refrigerating system of a refrigerator, and relates to the technical field of refrigerators. The invention includes a compressor; the outlet end of the compressor is connected with the inlet end of the condenser through a pipeline; the outlet end of the condenser is connected with the inlet end of the filter through a pipeline; the outlet end of the filter is connected with the inlet end of the one-in three-out electric switching valve through a pipeline; one outlet end of the one-in three-out electric switching valve is connected with one end of a first conveying pipeline; the other end of the first conveying pipeline, one end of the first evaporator and one end of the second evaporator are connected through a first three-way pipe; the other two outlet ends of the one-in three-out electric switching valve are respectively connected with one end of the second conveying pipeline and one end of the third conveying pipeline; the other end of the second conveying pipeline is connected with the other end of the first evaporator. The invention can solve the problem of refrigerant migration in the current refrigeration system and ensure higher cycle efficiency of the refrigeration system.)

1. A double-circulation refrigerating system of a refrigerator comprises a compressor (1), a condenser (2), a filter (3), a one-inlet three-outlet electric switching valve (4), a first evaporator (5), a second evaporator (6) and a liquid storage device (7); the method is characterized in that:

The outlet end of the compressor (1) is connected with the inlet end of the condenser (2) through a pipeline; the outlet end of the condenser (2) is connected with the inlet end of the filter (3) through a pipeline; the outlet end of the filter (3) is connected with the inlet end of the one-in three-out electric switching valve (4) through a pipeline;

An outlet end of the one-in three-out electric switching valve (4) is connected with one end of a first conveying pipeline (X); the other end of the first conveying pipeline (X), one end of the first evaporator (5) and one end of the second evaporator (6) are connected through a first three-way pipe;

the other two outlet ends of the one-in three-out electric switching valve (4) are respectively connected with one end of a second conveying pipeline (Z) and one end of a third conveying pipeline (Y); the other end of the second conveying pipeline (Z) is connected with the other end of the first evaporator (5); the other end of the third conveying pipeline (Y) is connected with the other end of the second evaporator (6);

the other end of the first evaporator (5) and the other end of the second evaporator (6) are both connected with the inlet end of a liquid storage device (7); the outlet end of the liquid storage device (7) is connected with the inlet end of the compressor (1) through a pipeline.

2. the dual circulation refrigerating system of a refrigerator according to claim 1, wherein a first capillary tube (8) is installed on a pipe connected between the filter (3) and an in-and-out electric switching valve (4); the inlet end of the liquid storage device (7) is connected to the outlet end of a two-inlet one-outlet low-temperature valve (9); and two inlet ends of the two inlet and one outlet low-temperature valves (9) are respectively connected with the other end of the first evaporator (5) and the other end of the second evaporator (6).

3. the dual circulation refrigerating system of a refrigerator according to claim 1, wherein a first capillary tube (8) is installed on the pipe connected between the filter (3) and an in-and-out electric switching valve (4); the other end of the first evaporator (5) and the other end of the second evaporator (6) are respectively connected to the inlet ends of the two one-in one-out low-temperature valves (10); the outlet ends of the two inlet and outlet low-temperature valves (10) are connected with the inlet end of the liquid storage device (7).

4. a double circulation refrigerating system of a refrigerator in accordance with claim 1, wherein said first delivery duct (X) is provided with a second capillary tube (11); a third capillary tube (12) is arranged on the second conveying pipeline (Z); a fourth capillary tube (13) is arranged on the third conveying pipeline (Y); the inlet end of the liquid storage device (7) is connected to the outlet end of a two-inlet one-outlet low-temperature valve (9); and two inlet ends of the two inlet and one outlet low-temperature valves (9) are respectively connected with the other end of the first evaporator (5) and the other end of the second evaporator (6).

5. a double circulation refrigerating system of a refrigerator in accordance with claim 1, wherein said first delivery duct (X) is provided with a second capillary tube (11); a third capillary tube (12) is arranged on the second conveying pipeline (Z); a fourth capillary tube (13) is arranged on the third conveying pipeline (Y); the other end of the first evaporator (5) and the other end of the second evaporator (6) are respectively connected to the inlet ends of the two one-in one-out low-temperature valves (10); the outlet ends of the two inlet and outlet low-temperature valves (10) are connected with the inlet end of the liquid storage device (7).

Technical Field

The invention belongs to the technical field of refrigerators, and particularly relates to a double-circulation refrigerating system of a refrigerator.

background

currently, two-door refrigerators are mainly classified into two types, one is a refrigerator with an upper refrigeration zone and a lower refrigeration zone, the volume of the refrigerator is generally below 300L, and the other is a side-by-side combination structure with left refrigeration and right refrigeration, the volume of the refrigerator is generally about 500L. As for the first type of refrigerator described above, a refrigerator having a full variable temperature design function is already on the market, the full variable temperature refrigerator is mainly a single system, one evaporator, large in size, one compressor, and up to 11cc in discharge capacity, and an air duct structure needs to be newly designed to ensure high air circulation efficiency, especially, a freezing air duct structure is a great difficulty in design, and meanwhile, defrosting control also needs to be newly designed to ensure reliability of defrosting performance; as for the second type of refrigerator described above, a refrigerator having a full temperature change design function is marketed, which is mainly of a dual compressor design, each compressor constituting a single cycle refrigeration system, equivalent to the combination of two conventional refrigerators. From the technical point of view, the difficulty is not great, but the design of the double compressors has high cost and large noise. If the design of a pure parallel refrigeration system is adopted, the problem of refrigerant migration can occur in the operation process of the refrigeration system, so that the refrigeration efficiency of the refrigeration system is low. Based on the above-described type of refrigerator carrier and the problems of the migration of the refrigeration system, a dual cycle refrigeration system for a refrigerator is needed to solve the above problems.

disclosure of Invention

The present invention provides a dual cycle refrigeration system for a refrigerator, which aims to solve the problems in the background art.

In order to solve the technical problems, the invention is realized by the following technical scheme:

The invention relates to a double-circulation refrigerating system of a refrigerator, which comprises a compressor, a condenser, a filter, a one-in three-out electric switching valve, a first evaporator, a second evaporator and a liquid storage device, wherein the condenser is arranged on the compressor; the outlet end of the compressor is connected with the inlet end of the condenser through a pipeline; the outlet end of the condenser is connected with the inlet end of the filter through a pipeline; the outlet end of the filter is connected with the inlet end of the one-in three-out electric switching valve through a pipeline; an outlet end of the one-in three-out electric switching valve is connected with one end of a first conveying pipeline; the other end of the first conveying pipeline, one end of the first evaporator and one end of the second evaporator are connected through a first three-way pipe; the other two outlet ends of the one-in three-out electric switching valve are respectively connected with one end of a second conveying pipeline and one end of a third conveying pipeline; the other end of the second conveying pipeline is connected with the other end of the first evaporator; the other end of the third conveying pipeline is connected with the other end of the second evaporator; the other end of the first evaporator and the other end of the second evaporator are both connected with the inlet end of the liquid storage device; the outlet end of the liquid storage device is connected with the inlet end of the compressor through a pipeline.

Furthermore, a first capillary tube is arranged on a pipeline connected between the filter and the one-in-three-out electric switching valve; the inlet end of the liquid storage device is connected to the outlet end of the two-inlet one-outlet low-temperature valve; and two inlet ends of the two inlet and one outlet low-temperature valves are respectively connected with the other end of the first evaporator and the other end of the second evaporator.

Furthermore, a first capillary tube is arranged on a pipeline connected between the filter and the one-in-three-out electric switching valve; the other end of the first evaporator and the other end of the second evaporator are respectively connected to the inlet ends of the two inlet and outlet low-temperature valves; and the outlet ends of the two inlet and outlet low-temperature valves are connected with the inlet end of the liquid storage device.

furthermore, a second capillary tube is arranged on the first conveying pipeline; a third capillary tube is arranged on the second conveying pipeline; a fourth capillary tube is arranged on the third conveying pipeline; the inlet end of the liquid storage device is connected to the outlet end of the two-inlet one-outlet low-temperature valve; and two inlet ends of the two inlet and one outlet low-temperature valves are respectively connected with the other end of the first evaporator and the other end of the second evaporator.

furthermore, a second capillary tube is arranged on the first conveying pipeline; a third capillary tube is arranged on the second conveying pipeline; a fourth capillary tube is arranged on the third conveying pipeline; the other end of the first evaporator and the other end of the second evaporator are respectively connected to the inlet ends of the two inlet and outlet low-temperature valves; and the outlet ends of the two inlet and outlet low-temperature valves are connected with the inlet end of the liquid storage device.

the invention has the following beneficial effects:

the invention can solve the problem of refrigerant migration in the current refrigeration system and ensure higher cycle efficiency of the refrigeration system; the low-temperature stop valve is applied to the refrigerating system, so that the independent refrigerating function of the multi-chamber refrigerator can be realized, the design requirement of full temperature change is met, and the high-temperature-change-point refrigerator has high market application value.

of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.

Drawings

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

FIG. 1 is a schematic block diagram of a first embodiment of the present invention;

FIG. 2 is a schematic block diagram of a second embodiment of the present invention;

FIG. 3 is a functional block diagram of a third embodiment of the present invention;

fig. 4 is a schematic block diagram of a fourth embodiment of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1-a compressor, 2-a condenser, 3-a filter, 4-a one-inlet three-outlet electric switching valve, 5-a first evaporator, 6-a second evaporator, 7-a liquid storage device, 8-a first capillary tube, 9-a two-inlet one-outlet low-temperature valve, 10-a one-inlet one-outlet low-temperature valve, 11-a second capillary tube, 12-a third capillary tube, 13-a fourth capillary tube, an X-a first conveying pipeline, a Z-a second conveying pipeline and a Y-a third conveying pipeline.

Detailed Description

the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.