CN106288596A - A kind of refrigerator - Google Patents

Abstract

The invention provides a refrigerator, the refrigerator is provided with an evaporator, a cooling chamber for placing the evaporator, an air supply duct and a return air duct connected with the cooling chamber, and part of the air supply duct and The return air ducts are attached to each other. Thereby, the cold air in the air supply duct and the return air in the return air duct fully perform heat exchange, so that the temperature of the cold air in the air supply duct is relatively increased, so that the cold air blown out is not easy to freeze the food, and the return air The temperature of the return air in the tunnel is relatively lower, which reduces the energy consumption of the evaporator.

Description

a refrigerator

technical field

The invention provides a refrigerator, especially an air-cooled refrigerator.

Background technique

Traditional single-system air-cooled refrigerators are difficult to solve the problem of low air supply temperature. To solve this problem, current air-cooled refrigerators generally adopt a dual-system design, that is, both the refrigerator and freezer have separate refrigeration systems. Evaporation temperature to increase the supply air temperature. However, due to the series-parallel connection between refrigeration and freezing, if only this method is used, the temperature of the supply air cannot be effectively increased, that is, the temperature of the supply air for refrigeration is still relatively low compared to the cooling temperature of the refrigerator. However, if the refrigerating temperature of the refrigerator is too low, it is easy to cause the food in the refrigerator to be damaged by freezing.

Contents of the invention

The present invention aims at the problems existing in the prior art, and aims at providing a refrigerator capable of increasing the outlet air temperature.

In order to achieve the above object, the present invention provides a refrigerator, which is characterized in that: the refrigerator is provided with an evaporator, a cooling room for placing the evaporator, an air supply duct and a return air duct connected to the cooling room , part of the air supply duct and the return air duct are attached to each other.

As a further improvement of the present invention, the refrigerator includes an outer shell, a refrigerated liner arranged in the outer shell, a refrigerated liner, and a door body, the cooling chamber is set between the refrigerated inner liner and the outer shell, and the air supply air The channel is arranged between the refrigerated inner container and the outer shell.

As a further improvement of the present invention, the refrigerated inner container and the refrigerated inner container are both provided with a rear container opposite to the door body and side containers arranged on both sides of the rear container, and the cooling chamber and the air supply duct are all arranged in the The rear of the rear bladder is connected vertically.

As a further improvement of the present invention, an openable and closable damper is formed between the cooling chamber and the air supply duct.

As a further improvement of the present invention, the return air duct includes a communication section that communicates with each other and is arranged between the refrigerating inner container and the outer shell, and a heat exchange section that is arranged between the refrigerating inner container and the outer shell. The side of the cooling chamber that is close to the shell and communicates with the lower side of the cooling chamber, the heat exchange section and the air supply duct are in close contact with each other.

As a further improvement of the present invention, the heat exchange section is arranged on a side of the air supply duct close to the rear bladder.

As a further improvement of the present invention, both the air supply duct and the heat exchange section are arranged close to the side bladder.

As a further improvement of the present invention, the return air duct also includes a return air section arranged between the refrigerated liner and the outer shell, the return air section extends from the heat exchange section to the front side, and extends to the At a position between the side tank and the outer shell and close to the door body, at least one air return port communicated with the air return section is opened on the refrigerating liner.

As a further improvement of the present invention, at least one air outlet communicating with the air supply duct is opened on the refrigerating inner container.

As a further improvement of the present invention, there are two air supply ducts and return air ducts and they are distributed symmetrically.

The beneficial effects of the present invention: by abutting the air supply duct and the return air duct partly, the cold air in the air supply duct and the return air in the return air duct fully perform heat exchange, so that the cold air in the air supply duct The temperature is relatively increased, so that the blown cold air is not easy to freeze the food, and the temperature of the return air in the return air duct is relatively reduced, which reduces the energy consumption of the evaporator.

Description of drawings

Fig. 1 is a side sectional view of a refrigerator of the present invention;

Figure 2 is an enlarged schematic view of the circled part in Figure 1;

Fig. 3 is a top sectional view of the refrigerator of the present invention.

detailed description

The present invention will be described in detail below in conjunction with various embodiments shown in the drawings. However, these embodiments do not limit the present invention, and structural or functional changes made by those skilled in the art according to these embodiments are included in the protection scope of the present invention.

As shown in Figures 1 to 3, the present invention provides a refrigerator 100, particularly an air-cooled refrigerator, wherein an evaporator 1, a cooling chamber 2 for placing the evaporator 1, and a cooling chamber 2 are arranged in the refrigerator 100. The room 2 is connected with the air supply duct 3 and the return air duct 4, and part of the air supply duct 3 and the return air duct 4 are adjacent to each other. Therefore, the cold wind in the air supply duct 3 and the return air with a relatively high temperature in the return air duct 4 can perform heat exchange, so that the temperature of the cold wind in the air supply duct 3 is relatively increased and the temperature of the air supply is improved; and The temperature of the return air in the return air duct 4 is relatively lower, so that when the return air returns to the evaporator 1 , the cooling energy consumption of the evaporator 1 can be reduced.

Specifically, as shown in FIG. 1 , the refrigerator 100 includes an outer shell (not numbered), a refrigerating liner 10 arranged in the outer shell, a freezing inner liner 20 and a door body 30, and the cooling chamber 2 is set in the freezing chamber. Between the tank 20 and the outer shell, the air supply duct 3 is arranged between the refrigerated inner tank 10 and the outer shell. Both the refrigerated liner 20 and the refrigerated liner 10 are provided with a rear liner (unlabeled) opposite to the door body 30 and side bladders (unlabeled) arranged on both sides of the rear liner. The cooling chamber 2 and The air supply ducts 3 are all arranged at the rear of the rear bladder and communicate with each other in the vertical direction.

In this embodiment, a refrigeration fan 21 is also arranged in the cooling chamber 2, and the refrigeration fan 21 is arranged on the side of the evaporator 1 close to the refrigeration liner 10, and the return air flows from the bottom of the evaporator 1. Enter, pass through the evaporator 1 for cooling, and flow out from above the evaporator 1. Moreover, an openable damper 31 is formed between the cooling chamber 2 and the air supply duct 3, and when the temperature in the refrigerated liner 10 is high, the damper 31 is opened to cool the refrigerated interior. When the temperature in 10 was low, the air door 31 was closed, and the refrigeration room was not refrigerated.

The return air duct 4 includes a communication section 41 and a heat exchange section 42 that communicate with each other. Between the gall 10 and the shell. The communication section 41 is arranged on the side of the cooling chamber 2 close to the shell and communicates with the bottom of the cooling chamber 2 , that is, the return air passes through the communication section 41 and reaches the bottom of the cooling chamber 2 , thus passing through the evaporator 1. Moreover, in this embodiment, in order to prevent the heat exchange between the return air duct 4 and the cooling chamber 2, thereby affecting the cooling in the freezing chamber 2, the communication section 41 and the cooling chamber 2 are isolated from each other. .

The heat exchange section 42 is in contact with the air supply duct 3 for heat exchange. Moreover, in this embodiment, the heat exchange section 42 is arranged on the side of the air supply duct 3 close to the rear tank, that is, the air supply duct 3 and the heat exchange section 42 are arranged front and back. Of course, if the air supply duct 3 and the heat exchange section 42 are arranged in other ways, the purpose of the present invention can also be achieved. Moreover, the air supply duct 3 and the heat exchange section 42 are both arranged close to the side tank. In this embodiment, the air supply duct 3 and the heat exchange section 42 are both arranged on the side tank and the rear tank at the corner of the intersection. Moreover, the length of the heat exchange section 42 is consistent with that of the air supply duct 3 , so the contact area between the two is large, sufficient heat exchange can be obtained, and the working efficiency is improved.

The return air duct 4 also includes a return air section 43 arranged between the refrigerated liner 10 and the outer shell, the return air section 43 communicates with the heat exchange section 42 and flows from the heat exchange section 42 Extend forward and extend to a position close to the door body 30 . The return air section 43 is arranged between the side bladder and the shell. At least one air return port 431 communicating with the air return section 43 is opened on the refrigerated liner 10 .

In this embodiment, the air return section 43 is in an inverted "L" shape, and extends horizontally from the front side of the heat exchange section 42 to close to the door body 30 , and then extends vertically downward. In this embodiment, the air return port 431 is arranged at a section extending vertically downwards of the air return section 43 , and correspondingly, the refrigerated liner 10 is provided with an air outlet communicating with the air supply duct 3 . There is at least one air outlet 32, and in this embodiment, the air outlet 32 is set to discharge air obliquely. Then the air return port 431 and the air outlet port 32 are arranged in the vertical direction, and the front and back correspond. The return air section 43 is provided with a return air fan 44 , and in this embodiment, the return air fan 44 is arranged near the corner of the return air section 43 .

In addition, there are two air supply ducts 3 and return air ducts 4 and they are distributed symmetrically. As shown in FIG. The cold air blows out from the air outlets 32 on both sides to the middle of the refrigerated liner 10 and enters from the air return ports 431 on both sides, so that the inside of the refrigerated liner 10 can be fully refrigerated.

Therefore, the present invention provides a refrigerator 100. The heat exchange section 42 in the refrigerator 100 and the air supply duct 3 are in close contact with each other, so that during the cooling process of the refrigerated liner 10, the return air duct 4 The temperature in the heat exchange section 42 is higher, and the temperature in the air supply duct 3 is lower, so that the two perform heat exchange, which can further increase the temperature in the air supply duct 3, so that the temperature of the cold wind blowing to the refrigerating chamber is not high. As for being too low.

It should be understood that although this description is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the description is only for clarity, and those skilled in the art should take the description as a whole, and each The technical solutions in the embodiments can also be properly combined to form other embodiments that can be understood by those skilled in the art.

The series of detailed descriptions listed above are only specific descriptions for feasible implementations of the present invention, and they are not intended to limit the protection scope of the present invention. Any equivalent implementation or implementation that does not depart from the technical spirit of the present invention All changes should be included within the protection scope of the present invention.

Claims (10)

1. A refrigerator, characterized in that: the refrigerator is provided with an evaporator, a cooling chamber for placing the evaporator, an air supply duct and a return air duct communicated with the cooling chamber, and part of the air supply air The duct and the return air duct are attached to each other. 2. The refrigerator according to claim 1, characterized in that: the refrigerator comprises an outer shell, a refrigerated liner arranged in the outer shell, a refrigerated inner liner and a door body, and the cooling chamber is set between the refrigerated inner liner and the outer shell In between, the air supply duct is arranged between the refrigerating liner and the outer shell. 3. The refrigerator according to claim 2, characterized in that: the refrigerated liner and the refrigerated liner are both provided with a back pan set opposite to the door body and side pans arranged on both sides of the back pan, and the cooling chamber and the air supply duct are all arranged at the rear of the rear tank and communicated in the vertical direction. 4. The refrigerator according to claim 3, wherein an openable and closable damper is formed between the cooling chamber and the air supply duct. 5. The refrigerator according to claim 3, characterized in that: the return air duct includes a connecting section that communicates with each other and is arranged between the refrigerating inner container and the outer shell, and an exchange section that is arranged between the refrigerating inner container and the outer shell. The heat section, the communication section is arranged on the side of the cooling chamber close to the shell and communicates with the bottom of the cooling chamber, and the heat exchange section and the air supply duct are in close contact with each other. 6 . The refrigerator according to claim 5 , wherein the heat exchanging section is arranged on a side of the air supply duct close to the rear pan. 7 . 7. The refrigerator according to claim 5, characterized in that: the air supply duct and the heat exchange section are both arranged close to the side tank. 8. The refrigerator according to claim 5, wherein the return air duct further comprises a return air section arranged between the refrigerated liner and the outer shell, and the return air section is forward from the heat exchange section The side extends, and extends to a position between the side tank and the outer shell and close to the door body, and at least one air return port communicated with the return air section is opened on the refrigerated inner tank. 9. The refrigerator according to claim 2, wherein at least one air outlet communicating with the air supply duct is opened on the refrigerating liner. 10 . The refrigerator according to claim 1 , wherein there are two air supply ducts and air return ducts arranged symmetrically. 11 .