WO2016082623A1

WO2016082623A1 - Refrigerator

Info

Publication number: WO2016082623A1
Application number: PCT/CN2015/091101
Authority: WO
Inventors: 戚斐斐; 姬立胜; 刘建如; 张书锋; 周文; 王正月; 李心灵; 陶海波
Original assignee: 青岛海尔股份有限公司
Priority date: 2014-11-26
Filing date: 2015-09-29
Publication date: 2016-06-02
Also published as: CN104567204A; CN104567204B

Abstract

Disclosed is a refrigerator (100), comprising a refrigerator body (10) and a refrigeration system (20). The refrigeration system (20) comprises a compressor (21), a condensation tube (22), a throttling element and an evaporator, wherein the compressor (21) is provided on the top of the refrigerator (100). The refrigerator (100) further comprises an evaporation pan (30) provided on the top of the refrigerator (100), a drain pipe (40), and a lifting device (50) for lifting the defrosting water of the refrigerator (100) into the evaporation pan (30). The refrigerator (100) provides the compressor (21) and the evaporation pan (30) on the top of the refrigerator (100), and lifts the defrosting water into the evaporation pan (30) by means of the drain pipe (40) and the lifting device (50) so as to avoid introducing, from up to down, the high-temperature refrigerant from the compressor (21) into the evaporation pan (30) at the bottom of the refrigerator (100) through the condensation tube (22). This reduces the heat sent out by the high-temperature condensation tube (22) into the refrigerator body (10) and lowers the heat load and energy consumption of the refrigerator (100).

Description

refrigerator

The present application claims the priority of the Chinese Patent Application No. 2014-1068850, the entire disclosure of which is incorporated herein by reference.

Technical field

The invention relates to a refrigerator, in particular to a refrigerator provided with a compressor at the top of the refrigerator.

Background technique

At present, refrigerators with compressors have become mainstream because of their many advantages. However, the evaporating dish of the refrigerator placed on the compressor is disposed at the bottom of the refrigerator, and in order to accelerate the evaporation speed of the defrosting water in the evaporating dish, the higher temperature refrigerant from the compressor is introduced from the top to the bottom through the condensing pipe. Inside the evaporating dish at the bottom of the refrigerator. The high temperature condenser tube is arranged on the side plate or the back plate of the refrigerator to dissipate heat to the box body, which increases the heat load and energy consumption of the refrigerator.

In view of this, it is necessary to improve the existing refrigerator to solve the above problems.

Summary of the invention

It is an object of the present invention to provide a refrigerator in which the compressor is placed overhead, the defrosting water evaporates quickly, and the energy consumption is low.

In order to achieve the above object, the present invention provides a refrigerator including a cabinet, a refrigeration system, the refrigeration system including a compressor, a condenser, a throttle element, and an evaporator. The compressor is disposed at the top of the refrigerator, and the refrigerator is further The utility model comprises an evaporating dish provided on the top of the refrigerator, a drain pipe, and a lifting device for lifting the defrosted water of the refrigerator into the evaporating dish.

As a further improvement of the present invention, the lifting device is a lift pump that lifts the defrosting water upward.

As a further improvement of the present invention, the drain pipe has a water inlet connected to the defrosting water drain, a delivery pipe connected to the water inlet, and conveying the defrosted water upward.

As a further improvement of the present invention, the conveying pipe comprises a first conveying pipe extending downward from the water inlet, an elbow bent upward from a lower end of the first conveying pipe, a second conveying pipe extending upward from the elbow pipe, and a second conveying pipe The top of the duct bends to direct the defrosting water into the water conduit in the evaporating dish.

As a further improvement of the present invention, the lift pump is disposed at the top of the second delivery tube.

As a further improvement of the present invention, a cooling compartment is disposed in the casing, and the defrosting water drain is disposed on a liner surrounding the cooling compartment.

As a further improvement of the present invention, the evaporating dish is fixed to one side of the compressor, and a portion of the condenser tube connected to the compressor is disposed in the evaporating dish.

As a further improvement of the invention, the evaporating dish is fixed to the top of the compressor.

As a further improvement of the present invention, the drain pipe is provided with a heating wire or a heat insulating sleeve.

As a further improvement of the present invention, the heating wire is provided at the water inlet.

The utility model has the beneficial effects that the refrigerator of the invention provides the compressor and the evaporating dish on the top of the refrigerator, and the defrosting water is lifted into the evaporating dish through the drain pipe and the lifting device, thereby avoiding the comparison from the compressor. The high temperature refrigerant is introduced into the evaporating dish at the bottom of the refrigerator through the condensing pipe, thereby reducing the heat of the condensing pipe with high temperature to dissipate heat into the tank. Lower the heat load and energy consumption of the refrigerator.

DRAWINGS

Figure 1 is a schematic view of the mechanism of the refrigerator of the present invention.

2 is a schematic view of the drain pipe of the present invention docked with the inner liner.

FIG. 3 is a schematic structural view of the heat retaining device of FIG. 1. FIG.

detailed description

The present invention will be described in detail below with reference to the drawings and specific embodiments.

Referring to Figures 1 through 3, the sidewalls of the press chamber and evaporating dish 30 facing the reader are removed for clarity of illustration. In order to achieve the above object, the present invention provides a refrigerator 100 including a cabinet 10, a refrigeration system 20, an evaporating dish 30 disposed at the top of the refrigerator 100, a drain pipe 40, and a defrosted water of the refrigerator 100. The lifting device 50 in the evaporating dish 30 is described. The cabinet 10 is provided with a plurality of refrigerating compartments, such as a refrigerating compartment, a changing greenhouse and a freezing compartment. The refrigeration system 20 includes a compressor 21 connected by a pipeline and forming a circuit, a condenser pipe 22, a throttle element, and an evaporator, and the compressor 21 is disposed at the top of the refrigerator 100. The drawings of the present invention focus on the installation position of the evaporating dish 30, and the overall layout of the refrigerating system 20 is not shown.

After the refrigerator 100 is used for a period of time, a certain amount of frost is generated in the refrigerating compartment, especially in the freezing compartment, so that the refrigeration effect of the refrigerator 100 is deteriorated, the running time of the compressor 21 becomes long, and the power consumption increases. Therefore, the refrigerator 100 requires timed defrosting. The defrosting water flows downward under the action of gravity, so the defrosting water discharge port is generally disposed at the bottom of the refrigerating compartment, so that all the defrosting water can be discharged to avoid freezing during the next cooling. In this embodiment, the evaporator is disposed in the refrigerating compartment of the casing 10, and the defrosting water drain is disposed on the inner casing surrounding the refrigerating compartment, especially at the bottom of the tank, that is, cooling The bottom wall of the inner chamber or the bottom of the side wall of the tank facilitates the full and rapid discharge of the defrosting water.

However, even if the freezing chamber is disposed at the top of the refrigerator 100, the defrosting water discharge port still has a certain height difference from the evaporating dish 30 at the top of the refrigerator 100, and the defrosting water is difficult to smoothly transport to the top of the refrigerator 100 by the water pressure alone. The dish 30; at the same time, the defrosting water may not be discharged from the defrosting water discharge port and remain in the refrigerating compartment or overflow from the refrigerating compartment. Therefore, it is necessary to provide a lifting device 50 to lift the defrosting water upward into the evaporating dish 30. In this embodiment, the lifting device 50 is a lift pump 50 that lifts the defrosting water upward.

Different from the conventional drain pipe 40, the drain pipe 40 of the present invention has a water inlet port 41 connected to the defrosting water drain port, a water transfer port 41 connected to the water inlet port 41, and the defrosted water is transported upward into the evaporating dish 30. . The water inlet 41 is attached to the inner tank and connected to the defrosting water discharge port.

Further, the conveying pipe 42 includes a first conveying pipe 421 extending downward from the water inlet 41, an elbow 422 bent upward from the lower end of the first conveying pipe 421, and a second conveying pipe 423 extending upward from the elbow 422. Bending from the top of the second transfer pipe 423 to introduce the defrosted water into the water conduit 424 in the evaporating dish 30. The length of the first conveying pipe 421 is smaller than the length of the second conveying pipe 423.

The first conveying pipe 421 extends downward from the water inlet 41, so that the defrosting water flows downward from the water inlet 41 into the first conveying pipe 421, and then flows downward by gravity, leaving the defrosting water discharge port as soon as possible. To facilitate the indoorization of the cooling room The frost water continues to drain outwards. The defrosting water then flows into the second delivery pipe 423 through the elbow 422, and is lifted into the evaporating dish 30 by the lifting device 50.

The lift pump 50 may be disposed at the bottom, the middle, and the top of the second transfer pipe 423, preferably at the top. On the one hand, the lift pump 50 occupies a certain space, and is disposed in the press room at the top, which may not be affected. The layout and use of the cooling compartment in the cabinet 10.

In addition, the first delivery tube 421 and the elbow 422 are disposed, and the lift pump 50 is disposed on the second delivery tube 423, compared to the embodiment in which the delivery tube 42 extends directly upward from the water inlet 41. The top portion can be used to reduce the power consumption after the defrosting water flows into the drain pipe 40 by a certain amount, and the power consumption of the lift pump 50 can be avoided, and the damage to the lift pump 50 can be reduced.

The evaporating dish 30 is fixed to one side of the compressor 21, and a part of the condensing tube 22 connected to the compressor 21 is disposed in the evaporating dish 30, and on the one hand, the condensing tube 22 is pre-cooled, and the subsequent condensing tube 22 is reduced. The transfer of heat into the casing 10 reduces the energy consumption; on the other hand, the evaporation rate of the defrosting water in the evaporating dish 30 is accelerated by means of the condenser 22 having a higher temperature.

Of course, the evaporating dish 30 can also be directly fixed to the top of the compressor 21, and the evaporation speed can be accelerated by the heat of the compressor 21 itself, while the compressor 21 is cooled.

The drain pipe 40 is disposed in the foam layer outside the inner tank of the refrigerator 100. In order to avoid the phenomenon that the defrosting water is frozen and frozen during the process of lifting the defrosting water from the bottom up, a heat retaining device 60 is disposed on the drain pipe 40, such as The wire 60 or the heat insulating sleeve is heated to ensure that the defrosting water liquid is smoothly lifted up into the evaporating dish 30. The heat insulation sleeve is disposed outside the entire drain pipe 40.

Referring to FIG. 3, taking the heating wire 60 as an example, the heating wire 60 may be disposed along the entire drain pipe 40 to heat the defrosting water throughout. Preferably, the heating wire 60 is concentratedly disposed at the water inlet 41, that is, the heating pipe 60 is disposed near the water inlet 41 of the conveying pipe 42 to heat the defrosting water so that the defrosting water does not freeze. Under the premise, the temperature is raised upwards at a lower temperature to prevent heat transfer to the inside of the casing 10 and increase energy consumption. In this embodiment, the heating wire 60 is disposed at the first conveying pipe 421, the elbow 422, and a portion of the second conveying pipe 423 near the elbow 422.

In summary, the refrigerator 100 of the present invention provides the compressor 21 and the evaporating dish 30 on the top of the refrigerator 100, and lifts the defrosted water into the evaporating dish 30 through the drain pipe 40 and the lifting device 50, thereby avoiding the The higher temperature refrigerant from the compressor 21 is introduced into the evaporating dish 30 at the bottom of the refrigerator 100 through the condensing pipe 22, thereby reducing the heat of the condensing pipe 22 having a high temperature to dissipate heat into the casing 10, thereby reducing the refrigerator 100. Thermal load and energy consumption.

The above embodiments are only used to illustrate the technical solutions of the present invention, and the present invention is not limited thereto. Although the present invention is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or substituted. Without departing from the spirit and scope of the technical solutions of the present invention.

Claims

A refrigerator includes a tank body and a refrigeration system, the refrigeration system includes a compressor, a condensing pipe, a throttling element, and an evaporator, and the compressor is disposed at the top of the refrigerator, wherein the refrigerator further includes a refrigerator disposed at the top of the refrigerator. The evaporating dish, the drain pipe, and the defrosting water of the refrigerator are lifted to a lifting device in the evaporating dish.
The refrigerator according to claim 1, wherein said lifting device is a lift pump that lifts defrosted water upward.
The refrigerator according to claim 2, wherein the drain pipe has a water inlet connected to the defrosting water drain port, a delivery pipe connected to the water inlet port and conveying the defrosting water upward.
The refrigerator according to claim 3, wherein the conveying pipe comprises a first conveying pipe extending downward from the water inlet, an elbow bent upward from a lower end of the first conveying pipe, and a second extending upward from the bending pipe The conveying pipe is bent from the top of the second conveying pipe to introduce the defrosting water into the water conduit in the evaporating dish.
The refrigerator according to claim 4, wherein said lift pump is disposed at a top of said second transfer pipe.
The refrigerator according to claim 3, wherein the refrigerator body is provided with a refrigerating compartment, and the defrosting water draining port is provided on a liner surrounding the refrigerating compartment.
The refrigerator according to claim 1, wherein said evaporating dish is fixed to one side of the compressor, and a portion of the condenser connected to said compressor is disposed in the evaporating dish.
The refrigerator according to claim 1, wherein said evaporating dish is fixed to a top of the compressor.
The refrigerator according to claim 3, wherein the drain pipe is provided with a heating wire or a heat insulating sleeve.
A refrigerator according to claim 1, wherein said heating wire is provided at the water inlet.