CN113639512A

CN113639512A - Cooling chamber return air structure and refrigerator

Info

Publication number: CN113639512A
Application number: CN202110942901.2A
Authority: CN
Inventors: 张魁仓; 卫卫
Original assignee: Changhong Meiling Co Ltd
Current assignee: Changhong Meiling Co Ltd
Priority date: 2021-08-17
Filing date: 2021-08-17
Publication date: 2021-11-12
Anticipated expiration: 2041-08-17
Also published as: CN113639512B

Abstract

The invention discloses a cooling chamber air return structure and a refrigerator, and relates to the technical field of refrigerators. The invention comprises a face mask and a top cover which are formed by the outward protrusion of the top of an inner container, wherein the upper surface of the face mask is provided with a containing groove, and a cooling chamber is formed between the containing groove and the top cover; a first guide plate and a second guide plate are arranged in the accommodating groove at the front end of the mask; the first guide plate and the second guide plate are obliquely arranged, and a gap between the first guide plate and the second guide plate is arranged to form a drainage port; a first air return opening is formed in a gap between the first guide plate and the top cover, and a plurality of second air return openings are formed in the second guide plate. The invention solves the problem of air return reliability of the air-cooled refrigerator adopting the evaporator horizontally placed at the top of the compartment in the prior art by arranging the air return structure in the containing groove of the face shield, and also solves the application of pushing the evaporator horizontally placed at the top of the freezing chamber in the single-system refrigerator.

Description

Cooling chamber return air structure and refrigerator

Technical Field

The invention belongs to the technical field of refrigerators, and particularly relates to a cooling chamber air return structure and a refrigerator.

Background

In the prior art, an air-cooled refrigerator evaporator, a cold storage air duct and a freezing air duct are generally arranged on the back of a refrigerator, an air duct system generally comprises an air duct and a fan, the air duct is generally paved on the back of a compartment of a refrigerator body and comprises a foam piece air duct and a plastic piece air cover, and the air duct is thicker in thickness and causes larger volume of an air duct assembly. The refrigerating system in this way occupies at least more than 60L of the compartment volume of the refrigerator, and wastes the internal space of the refrigerator.

Compared with the common refrigerator with the evaporator arranged at the back of the refrigerator, the evaporator horizontally arranged at the top of the compartment has the advantages of large volume ratio, excellent constant temperature performance and low heat load. In the existing stage of refrigerators with transversely arranged evaporators, particularly refrigerators with evaporators horizontally arranged at the tops of compartments, the compartment air return openings are horizontally or obliquely exposed and arranged at the positions close to the compartment liner openings.

In the prior art, an evaporator is horizontally arranged on an air-cooled refrigerator at the top of a compartment, a compartment air return opening or a horizontal or inclined exposed part is arranged at a position close to a compartment liner opening, a large amount of frost can be formed at the air return opening under the condition that a door seal is aged or a door body is not tightly sealed after long-term use, so that refrigeration faults of the refrigerator are caused, even if a heater is additionally arranged at the air return opening, the frost can be melted, water after defrosting can be accumulated in the refrigerator or a drawer, and normal use of a user is influenced. Return air reliability is an important factor that limits the development of top-of-cabinet refrigerators with horizontally placed evaporators.

Disclosure of Invention

The invention aims to provide a cooling chamber air return structure and a refrigerator, and aims to solve the problem of air return reliability of an air-cooled refrigerator in the prior art in which an evaporator is horizontally placed at the top of a compartment by arranging the air return structure in a containing groove of a mask.

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

the invention relates to a cooling chamber air return structure which comprises a face mask and a top cover, wherein the top of an inner container protrudes outwards, a containing groove is formed in the upper surface of the face mask, and a cooling chamber is formed between the containing groove and the top cover; a first guide plate and a second guide plate are arranged in the accommodating groove at the front end of the mask; the first guide plate and the second guide plate are obliquely arranged, and a gap between the first guide plate and the second guide plate is arranged to form a drainage port; a first air return opening is formed in a gap between the first guide plate and the top cover, and a plurality of second air return openings are formed in the second guide plate.

Further, an evaporator, a heater and a water receiving disc are installed in the accommodating groove.

Furthermore, the evaporator is in a flat cubic shape and is transversely arranged in the accommodating groove.

Further, one end of the heater extends to the water outlet, and one end of the water receiving disc extends to the inner surface of the first flow guide plate.

Further, an included angle is formed between the first guide plate and the second guide plate, and the size of the included angle is between 25 degrees and 55 degrees.

A refrigerator comprising a cooling compartment return air structure as described above; the refrigerator comprises a refrigerator body, wherein an inner container is arranged in the refrigerator body, and a cooling chamber and at least one storage space adjacently arranged below the cooling chamber are arranged in the inner container; the rear end of the face mask is also provided with a fan.

The invention has the following beneficial effects:

the invention solves the problem of air return reliability of the air-cooled refrigerator adopting the evaporator horizontally placed at the top of the compartment and the application of pushing the evaporator horizontally placed at the top of the freezing compartment in the single-system refrigerator by arranging the air return structure in the accommodating groove of the face shield in the prior art, and has simple structure, hidden design of the air return opening and more beautiful appearance of the refrigerator.

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 view of the structure of the return air of the present invention;

FIG. 2 is a schematic structural view of a return air structure part of the invention;

fig. 3 is a schematic front view of a part of the return air structure of the invention.

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.

In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.

Example 1

Referring to fig. 1-3, the present invention is directed to a problem of reliability of return air of an air-cooled refrigerator in which an evaporator is horizontally disposed at the top of a compartment in the prior art by providing a return air structure in a receiving groove of a mask.

the invention relates to a cooling chamber air return structure which comprises a cover 2 and a top cover 11, wherein the top of an inner container 1 protrudes outwards, a containing groove 12 is formed in the upper surface of the cover 2, and a cooling chamber is formed between the containing groove 12 and the top cover 11; a first guide plate 21 and a second guide plate 22 are arranged in the containing groove 12 at the front end of the face mask 2; the first guide plate 21 and the second guide plate 22 are both obliquely arranged, a gap between the first guide plate 21 and the second guide plate 22 is arranged to form a drainage port 221, an included angle is formed between the first guide plate 21 and the second guide plate 22, and the size of the included angle is between 25 degrees and 55 degrees; the gap between the first baffle 21 and the top cover 11 forms a first air return opening 121, and the second baffle 22 is provided with a plurality of second air return openings 222.

Further, an evaporator 5, a heater 4 and a water pan 3 are arranged in the accommodating groove 12; the evaporator 5 is in a flat cubic shape and is transversely arranged in the containing groove 12; one end of the heater 4 extends to the water outlet 221, and one end of the water receiving tray 3 extends to the inner surface of the first flow guide plate 21.

Example 2

Referring to fig. 1, a refrigerator includes a cooling compartment return air structure as above; the refrigerator comprises a refrigerator body, wherein an inner container 1 is arranged in the refrigerator body, and a cooling chamber and at least one storage space adjacently arranged below the cooling chamber are arranged in the inner container 1; a fan is also mounted at the rear end of the mask 2.

The first air return opening is not shielded by the second guide plate, and the air return opening cannot be seen from the front side of the refrigerator in a concealed design mode of the air return opening. When the door body of the refrigerator is not tightly sealed, hot air outside the refrigerator can be sucked into the cooling chamber, firstly, the hot air passes through the first air return opening 121, because the first air return opening 121 has no shielding structure, frost is not generated, and when the hot air passes through the second air return opening 222, the frost is generated on the surface of the second guide plate 22 and freezes because of the blocking of the second guide plate 22; when the refrigerator stops the evaporator for defrosting, the heater 4 works to melt the frost on the surface of the second guide plate 22, because the second guide plate is arranged in the mask accommodating groove 223, the defrosting water flows into the water receiving tray 3 along the inner surface of the first guide plate 21 through the water outlet 221, and then is discharged out of the refrigerator.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a cooling chamber return air structure which characterized in that: the cooling device comprises an inner container (1) and a cover (11), wherein the top of the inner container protrudes outwards to form a face mask (2) and a top cover (11), a containing groove (12) is formed in the upper surface of the face mask (2), and a cooling chamber is formed between the containing groove (12) and the top cover (11);

a first guide plate (21) and a second guide plate (22) are arranged in the accommodating groove (12) at the front end of the face mask (2);

the first guide plate (21) and the second guide plate (22) are obliquely arranged, and a gap between the first guide plate (21) and the second guide plate (22) is arranged to form a drainage port (221); a first air return opening (121) is formed in a gap between the first guide plate (21) and the top cover (11), and a plurality of second air return openings (222) are formed in the second guide plate (22).

2. The cooling chamber return air structure and the refrigerator of claim 1, wherein the evaporator (5), the heater (4) and the water receiving tray (3) are installed in the accommodating groove (12).

3. A cooling chamber return air structure and refrigerator in accordance with claim 2 wherein the evaporator (5) is generally flat and cubic and is disposed transversely in the container (12).

4. The structure of returning air to the cooling chamber and the refrigerator as claimed in claim 2 or 3, wherein one end of the heater (4) extends to the drain opening (221), and one end of the water pan (3) extends to the inner surface of the first deflector (21).

5. The cooling chamber return air structure and the refrigerator of claim 1, wherein the first guide plate (21) and the second guide plate (22) form an included angle, and the included angle is 25-55 degrees.

6. A refrigerator comprising the cooling compartment return air structure as claimed in any one of claims 1 to 5;

the refrigerator comprises a refrigerator body, wherein an inner container (1) is arranged in the refrigerator body, and a cooling chamber and at least one storage space adjacently arranged below the cooling chamber are arranged in the inner container (1);

the rear end of the face mask (2) is also provided with a fan.