WO2018036070A1

WO2018036070A1 - Refrigerator

Info

Publication number: WO2018036070A1
Application number: PCT/CN2016/113461
Authority: WO
Inventors: 陶海波; 刘建如; 姬立胜; 聂圣源; 戚斐斐; 潘光亮; 曹东强
Original assignee: 青岛海尔股份有限公司
Priority date: 2016-08-22
Filing date: 2016-12-30
Publication date: 2018-03-01
Also published as: CN106288596A

Abstract

Provided is a refrigerator (100). An evaporator (1), a cooling compartment (2) used for accommodating the evaporator (1), an air supply duct (3) in communication with the cooling chamber (2), and an air return duct (4) are arranged inside the refrigerator (100). Parts of the air supply duct (3) and the air return duct (4) abut one another, such that the cool air in the air supply duct (3) and the return air in the air return duct (4) fully perform heat exchange. The temperature of the cool air in the air supply duct (3) is relatively increased, so that the cold air blown out cannot easily freeze and damage food, and the temperature of the return air in the air return duct (4) is relatively decreased, reducing the energy consumption of the evaporator (1).

Description

Refrigerator

The present application claims priority to Chinese Patent Application Serial No. No. No. No. No. No. No. No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No

Technical field

The invention provides a refrigerator, in particular an air-cooled refrigerator.

Background technique

The traditional single-system air-cooled refrigerator is difficult to solve the problem of low supply air temperature. For this problem, the current air-cooled refrigerator generally adopts a dual system design, that is, the refrigerating compartment and the freezing compartment each have a separate refrigeration system, and the refrigerator compartment is upgraded. Evaporate the temperature to increase the supply air temperature. However, since the refrigeration and freezing are carried out in series and parallel mode, if only this method is adopted, the supply air temperature cannot be effectively increased, that is, the refrigerating supply air temperature is relatively low with respect to the refrigerating temperature of the refrigerating compartment. However, if the refrigeration temperature of the refrigerator compartment is too low, it is easy to cause the food in the refrigerator compartment to be frozen.

Summary of the invention

The present invention is directed to the problems existing in the prior art, and an object thereof is to provide a refrigerator capable of improving an outlet air temperature.

In order to achieve the above object, the present invention provides a refrigerator, characterized in that: the refrigerator is provided with an evaporator, a cooling chamber for placing the evaporator, a supply air duct and a return air duct communicating with the cooling chamber; Some of the air supply ducts and the return air ducts abut each other.

As a further improvement of the present invention, the refrigerator includes a casing, a freezing inner tank disposed in the outer casing, a refrigerating inner tank and a door body, and the cooling chamber is disposed between the freezing inner tank and the outer casing, and the air supply wind A track is disposed between the refrigerating inner liner and the outer casing.

As a further improvement of the present invention, the freezing inner tank and the refrigerating inner tank are respectively provided with a rear biliary disposed opposite to the door body and a side biliary disposed on both sides of the rear biliary, wherein the cooling chamber and the air supply duct are disposed at The rear of the rear biliary is in communication with each other in the vertical direction.

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 is connected to each other and disposed between the freezing inner tank and the outer casing, and a heat exchange section disposed between the refrigerating inner tank and the outer casing, and the communication section is disposed The cooling chamber is adjacent to a side of the outer casing and communicates with a lower portion of the cooling chamber, and the heat exchange section and the air supply duct abut each other.

As a further improvement of the present invention, the heat exchange section is disposed on a side of the air supply duct adjacent to the rear biliary.

As a further improvement of the present invention, the air supply duct and the heat exchange section are disposed adjacent to the side sill.

As a further improvement of the present invention, the return air duct further includes a return air section disposed between the refrigerating inner tank and the outer casing, the return air section extending from the heat exchange section to the front side and extending to the At least between the side biliary and the outer casing and adjacent to the door body, the refrigerating inner tank is provided with at least one return air inlet communicating with the return air section.

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

As a further improvement of the present invention, the air supply duct and the return air duct are both provided with two symmetric distributions.

The beneficial effects of the present invention: by abutting the air supply duct and the return air duct portion, the cold air in the air supply duct and the return air in the return air duct sufficiently exchange heat, so that the cold air in the air supply duct The temperature is relatively increased, so that the blown cold wind does not easily cause the food to freeze, and the temperature of the return air in the return air duct is relatively lowered, which reduces the energy consumption of the evaporator.

DRAWINGS

Figure 1 is a side cross-sectional view of the refrigerator of the present invention;

Figure 2 is an enlarged schematic view of a circled portion of Figure 1;

Figure 3 is a top cross-sectional view of the refrigerator of the present invention.

detailed description

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

As shown in FIG. 1 to FIG. 3, the present invention provides a refrigerator 100, in particular an air-cooled refrigerator, in which an evaporator 1 is provided, a cooling chamber 2 for placing the evaporator 1, and cooling is provided. The air supply duct 3 and the return air duct 4 are connected to each other, and the air supply duct 3 and the return air duct 4 abut each other. Therefore, the cold air in the air supply duct 3 and the return air having a relatively high temperature in the return air duct 4 can exchange heat, so that the temperature of the cold air in the air supply duct 3 is relatively increased and the air supply temperature is increased; The temperature of the return air in the return air duct 4 is relatively lowered, 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 a casing (not labeled), a refrigerating inner tank 10 disposed in the outer casing, a freezing inner tank 20 and a door body 30, and the cooling chamber 2 is disposed in the freezing body. Between the bladder 20 and the outer casing, the air supply duct 3 is disposed between the refrigerating inner casing 10 and the outer casing. The freezing inner tank 20 and the refrigerating inner tank 10 are respectively provided with a rear biliary (not labeled) disposed opposite to the door body 30 and a side biliary (not labeled) disposed on both sides of the rear biliary, the cooling chamber 2 and The air supply ducts 3 are disposed behind the rear bristles and communicate in the vertical direction.

In the present embodiment, a cooling fan 21 is further disposed in the cooling chamber 2, and the freezing fan 21 is disposed on a side of the evaporator 1 near the refrigerating inner cylinder 10, and the return air is from the lower side of the evaporator 1. Entering, passing through the evaporator 1 to cool down, and flowing out from above the evaporator 1. Further, an openable and closable damper 31 is formed between the cooling chamber 2 and the air supply duct 3, and when the temperature in the refrigerating inner tank 10 is high, the damper 31 is opened to refrigerate the refrigerating compartment, and when refrigerating the inner tank When the temperature inside 10 is low, the damper 31 is closed, and the refrigeration room is not cooled.

The return air duct 4 includes a communicating section 41 and a heat exchange section 42 that are in communication with each other. The communicating section 41 is disposed between the freezing tank 20 and the outer casing, and the heat exchange section 42 is disposed in the refrigerating compartment. Between the bladder 10 and the outer casing. The communication section 41 is disposed on a side of the cooling chamber 2 near the outer casing and communicates with a lower side of the cooling chamber 2, that is, a return air passes through the communication section 41 and reaches below the cooling chamber 2 And thus pass through the evaporator 1. Further, in the present embodiment, in order to prevent heat exchange between the return air duct 4 and the cooling chamber 2, thereby affecting the cooling in the freezing compartment 2, the communication section 41 and the cooling chamber 2 are isolated from each other. .

The heat exchange section 42 and the air supply duct 3 abut each other for heat exchange. Further, in the present embodiment, the heat exchange section 42 is disposed on a side of the blower duct 3 that is close to the rear biliary, that is, the blower duct 3 and the heat exchange section 42 are arranged one behind the other. Of course, the object of the present invention can also be achieved if the air supply duct 3 and the heat exchange section 42 are arranged in other manners. The air supply duct 3 and the heat exchange section 42 are disposed adjacent to the side sill. In the embodiment, the air supply duct 3 and the heat exchange section 42 are disposed on the side sill and the stern At the corner of the intersecting world. Moreover, when the length of the heat exchange section 42 is the same as that of the air supply duct 3, the contact area between the two is large, and sufficient heat exchange can be obtained, thereby improving work efficiency.

The return air duct 4 further includes a return air section 43 disposed between the refrigerating inner tank 10 and the outer casing, and the return air section 43 is in communication with the heat exchange section 42 and from the heat exchange section 42 It extends forward and extends to a position close to the door body 30. The return air section 43 is disposed between the side sill and the outer casing. The refrigerating inner tank 10 is provided with at least one return air opening 431 communicating with the return air section 43.

In the present embodiment, the return air section 43 has an inverted "L" shape and extends horizontally from the heat exchange section 42 to the front side to the door body 30, and then extends vertically downward. In the present embodiment, the air return opening 431 is disposed in a section extending vertically downward from the return air section 43. Correspondingly, the refrigerating inner tank 10 is further connected to the air supply duct 3 At least one air outlet 32, and in the present embodiment, the air outlet 32 is disposed to slant outward. Then, the return air outlet 431 and the air outlet 32 are arranged in the vertical direction and correspond to each other. A return air blower 44 is disposed in the return air section 43. In the present embodiment, the return air blower 44 is disposed at a corner close to the return air section 43.

In addition, the air supply duct 3 and the return air duct 4 are both disposed in two and symmetrically distributed. As shown in FIG. 3, the air supply duct 3 and the return air duct 4 are disposed close to the side sill. The cold air is blown from the air outlets 32 on both sides to the central portion of the refrigerating inner cylinder 10, and enters from the return air outlets 431 on both sides, so that the inside of the refrigerating inner cylinder 10 can be sufficiently cooled.

Therefore, the present invention provides a refrigerator 100 in which the heat exchange section 42 and the blower duct 3 abut each other, so that in the process of cooling the refrigerating tank 10, the return air duct 4 The temperature in the heat exchange section 42 is relatively high, and the temperature in the air supply duct 3 is low, so that heat exchange between the two can further increase the temperature in the air supply duct 3, so that the temperature of the cold air blown to the refrigerating compartment is not As for too low.

It should be understood that, although the description is described in terms of embodiments, the embodiments are not intended to be construed as a single. The technical solutions in the embodiments may also be combined as appropriate to form other embodiments that can be understood by those skilled in the art.

The series of detailed descriptions set forth above are merely illustrative of the possible embodiments of the present invention, and are not intended to limit the scope of the present invention. Changes are intended to be included within the scope of the invention.

Claims

A refrigerator, characterized in that: the refrigerator is provided with an evaporator, a cooling chamber for placing the evaporator, a supply air duct and a return air duct communicating with the cooling chamber, and the part of the air supply duct and The return air ducts abut each other.
The refrigerator according to claim 1, wherein the refrigerator comprises a casing, a freezing inner tank disposed inside the casing, a refrigerating inner tank and a door body, and the cooling chamber is disposed between the freezing inner casing and the outer casing The air supply duct is disposed between the refrigerating inner tank and the outer casing.
The refrigerator according to claim 2, wherein the freezing inner tank and the refrigerating inner tank are provided with a rear biliary disposed opposite to the door body and side ribs disposed on both sides of the rear biliary, the cooling chamber and the sending Wind tunnels are disposed behind the rear bladder and communicate in a vertical direction.
The refrigerator according to claim 3, wherein an openable and closable damper is formed between the cooling chamber and the air supply duct.
The refrigerator according to claim 3, wherein the return air duct comprises a communication section that is connected to each other and disposed between the freezing tank and the outer casing, and a heat exchange section disposed between the refrigerating inner tank and the outer casing The communication section is disposed on a side of the cooling chamber adjacent to the outer casing and communicates with a lower portion of the cooling chamber, and the heat exchange section and the air supply duct abut each other.
The refrigerator according to claim 5, wherein the heat exchange section is disposed on a side of the air supply duct adjacent to the rear biliary.
The refrigerator according to claim 5, wherein the air supply duct and the heat exchange section are disposed adjacent to the side sill.
The refrigerator according to claim 5, wherein the return air duct further comprises a return air section disposed between the refrigerating inner tank and the outer casing, and the return air section extends from the heat exchange section to the front side And extending to a position between the side biliary and the outer casing and close to the door body, the refrigerating inner tank is provided with at least one return air opening communicating with the return air section.
The refrigerator according to claim 2, wherein the refrigerating inner tank is provided with at least one air outlet communicating with the air supply duct.
The refrigerator according to claim 1, wherein the air supply duct and the return air duct are both disposed in two and symmetrically distributed.