CN116772487A

CN116772487A - Refrigerator with a refrigerator body

Info

Publication number: CN116772487A
Application number: CN202210239397.4A
Authority: CN
Inventors: 杨玉涛; 耿伟; 赵彩云
Original assignee: Qingdao Haier Refrigerator Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Refrigerator Co Ltd; Haier Smart Home Co Ltd
Priority date: 2022-03-11
Filing date: 2022-03-11
Publication date: 2023-09-19
Also published as: WO2023169560A3; WO2023169560A2

Abstract

The invention provides a refrigerator which comprises a shell, an inner container, an air duct cover plate and an evaporator. The inner container is arranged on the inner side of the shell to define a storage compartment. The air duct cover plate is arranged on the inner side of the inner container to define an air duct with the inner wall of the inner container and is used for supplying cooling air for the storage compartment. The evaporator is arranged on the liner and is provided with at least one reinforced heat exchange part, and each reinforced heat exchange part is positioned in the air duct so as to perform contact heat exchange with the air flow in the air duct. Each reinforced heat exchange part comprises a plate body and a plurality of fins, one side surface of the plate body is attached to the evaporator, a plurality of vent holes arranged along the horizontal direction are formed in the plate body, and each vent hole is a strip hole extending along the vertical direction; the plurality of fins protrude from the other side surface of the plate body, and a first side of each fin is connected to one side of one vent hole in the width direction. The refrigerator provided by the invention can realize the light and thin evaporator and can also consider the refrigeration efficiency.

Description

Refrigerator with a refrigerator body

Technical Field

The invention relates to a refrigeration and freezing device, in particular to a refrigerator.

Background

Currently, evaporators commonly used for refrigerators mainly include tube-sheet evaporators and fin evaporators. The fin type evaporator itself has a relatively thick thickness, and the evaporator occupies a relatively large space, resulting in an influence on the effective storage volume of the refrigerator. Therefore, a fin type evaporator is not suitable for a refrigerator with a high requirement on the storage volume rate.

The tube-sheet evaporator is thinner, but the heat exchange area is smaller due to the thinness of the tube-sheet evaporator, so that the refrigerating efficiency of the refrigerator is lower. Therefore, simply using a conventional tube-sheet evaporator is not optimal.

Therefore, how to realize the frivolity and the thinness of the refrigerator and to consider the refrigerating efficiency is a technical problem to be solved in the refrigerator field.

Disclosure of Invention

An object of the present invention is to overcome at least one of the drawbacks of the prior art and to provide a refrigerator capable of achieving both the light and thin evaporator and the refrigeration efficiency.

The invention aims to solve the problem of low convection heat exchange efficiency of a tube-sheet evaporator.

In particular, the present invention provides a refrigerator including:

a housing;

the inner container is arranged on the inner side of the shell to define a storage compartment;

the air duct cover plate is arranged on the inner side of the inner container to define an air duct with the inner wall of the inner container and is used for supplying cooling air for the storage compartment; and

the evaporator is arranged on the inner container and is provided with at least one reinforced heat exchange part, and each reinforced heat exchange part is positioned in the air duct so as to perform contact heat exchange with air flow in the air duct; and is also provided with

Each reinforced heat exchange part comprises a plate body and a plurality of fins, one side surface of the plate body is abutted against the evaporator and provided with a plurality of vent holes arranged along the horizontal direction, and each vent hole is a strip hole extending along the vertical direction; the fins are protruded from the other side surface of the plate body, and the first side of each fin is connected to one side of one ventilation hole in the width direction.

Optionally, the first edge of each of the fins is connected to the same side edge in the width direction of each of the vent holes.

Optionally, each fin and each vent hole is rectangular with a length direction parallel to the first side.

Optionally, the width of each vent is b, and the width of the solid part between the vent and the adjacent vent is k, and b/k is 3.5-5.5.

Optionally, each fin is formed by cutting and then outwards turning over a solid part of the area where one vent hole is located.

Optionally, an included angle between the plane of each fin and the plate body is between 80 degrees and 90 degrees.

Optionally, the evaporator is abutted against the outer wall of the liner;

at least one abdication hole is formed in the inner container so as to allow each reinforced heat exchange part to extend into the air duct through one abdication hole.

Optionally, the evaporator is a tube-sheet evaporator, which has at least one heat exchange plate and heat exchange tubes attached to one side of the heat exchange plate;

the reinforced heat exchange part is attached to the other side of the heat exchange plate, and the side face is attached to the outer wall of the inner container.

Optionally, the number of the heat exchange plates is three, and the heat exchange plates are arranged at intervals along the vertical direction; and is also provided with

The number of the reinforced heat exchange parts is two, and the reinforced heat exchange parts are respectively arranged on the uppermost heat exchange plate and the lowermost heat exchange plate.

Optionally, each reinforced heat exchange part is clamped and fixed in one of the abdicating holes.

In the refrigerator, the evaporator is arranged on the inner container, and the reinforcing heat exchange part is arranged on the evaporator, so that the reinforcing heat exchange part is positioned in the air duct. In this way, the air flow in the air duct is in large-area contact with the reinforced heat exchange part in the flowing process, so that efficient convection heat exchange is completed, and the heat exchange efficiency of the evaporator is very high. In addition, although the reinforced heat exchange part is additionally arranged, the evaporator is arranged on the inner container, so that excessive thickening and even thickening of an air duct are not needed, the realization of the light and thin evaporator is facilitated, and the storage space is larger. Based on this, the refrigerator of the invention combines the light weight and the high efficiency of the evaporator.

Furthermore, the refrigerator of the invention enables the evaporator to be a tube plate type evaporator, and the heat exchange part structure is enhanced by matching the refrigerator of the invention, so that the contact area between the tube plate type evaporator and the air is larger, the heat exchange area is increased in an extremely narrow space, the efficient heat convection is realized, the lightness and thinness of the evaporator are ensured, and the structure is very ingenious. The reinforced heat exchange part occupies the internal space of the air duct, and does not occupy extra space, so that the design thought is quite reasonable.

Further, in the refrigerator, the reinforced heat exchange part comprises the vertical long-strip vent holes and the fins, so that the heat exchange area with the air flow can be increased, the flow path of the air flow is rugged, the contact time with the reinforced heat exchange part is longer, and the convection heat exchange efficiency is higher.

The above, as well as additional objectives, advantages, and features of the present invention will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present invention when read in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the invention will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:

fig. 1 is a schematic view of a refrigerator liner structure according to an embodiment of the present invention;

fig. 2 is a partial structural schematic view of an air duct of a refrigerator according to an embodiment of the present invention;

FIG. 3 is a schematic exploded view of the structure shown in FIG. 1;

fig. 4 is a schematic structural view of an evaporator in a refrigerator according to an embodiment of the present invention;

FIG. 5 is an enlarged view at A of FIG. 4;

fig. 6 is another schematic view of the evaporator of fig. 4.

Detailed Description

A refrigerator according to an embodiment of the present invention will be described with reference to fig. 1 to 6. Where the terms "front", "rear", "upper", "lower", "top", "bottom", "inner", "outer", "transverse", etc., refer to an orientation or positional relationship based on that shown in the drawings, this is merely for convenience in describing the invention and to simplify the description, and does not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

The terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may include at least one, i.e. one or more, of the feature, either explicitly or implicitly. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. When a feature "comprises or includes" a feature or some of its coverage, this indicates that other features are not excluded and may further include other features, unless expressly stated otherwise.

Unless specifically stated or limited otherwise, the terms "mounted," "connected," "secured," "coupled," and the like should be construed broadly, as they may be fixed, removable, or integral, for example; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. Those of ordinary skill in the art will understand the specific meaning of the terms described above in the present invention as the case may be.

The embodiment of the invention provides a refrigerator. The refrigerator in the embodiment of the invention is an air-cooled refrigerator, and the refrigerator can adopt a vapor compression refrigeration cycle system for refrigeration so as to provide cold energy for the storage compartment 13. The vapor compression refrigeration cycle includes a compressor (not shown), a condenser (not shown), an evaporator 50, a throttling device (not shown), and other refrigeration fittings. The evaporator 50 can be arranged in an independent space, cold air prepared by the evaporator 50 is transmitted into each storage compartment 13 by the air duct 11 to cool food, and air with increased temperature after heat exchange with the food in the storage compartment 13 is returned to the evaporator 50 by the return air duct to be cooled again, so that air path circulation is formed.

Fig. 1 is a schematic structural view of a liner 10 of a refrigerator according to an embodiment of the present invention; fig. 2 is a partial structural schematic view of an air duct 11 of a refrigerator according to an embodiment of the present invention; FIG. 3 is a schematic exploded view of the structure shown in FIG. 1; fig. 4 is a schematic structural view of an evaporator 50 in a refrigerator according to an embodiment of the present invention.

As shown in fig. 1 to 4, the refrigerator according to the embodiment of the present invention may generally include a housing 30, a liner 10, an air duct cover 20, and an evaporator 50.

The outer case 30 and the inner container 10 constitute a cabinet portion of the refrigerator, and an outer surface of the outer case 30 constitutes an outer appearance of the cabinet. The front side of the cabinet is open, and a door may be provided on the front side, only the rear wall of the housing 30 and one inner container 10 are illustrated in fig. 1, the housing 30 further has a left side wall, a right side wall, a top wall and a bottom wall, and the refrigerator may also have a plurality of inner containers, all of which are not illustrated in fig. 1.

The inner container 10 is disposed inside the outer case 30 to define a storage compartment 13. The storage compartment 13 may be specifically a refrigerating compartment, a temperature-changing compartment, a freezing compartment, or the like according to the difference in the cooling target temperature. A foaming layer (not shown) may be disposed between the inner container 10 and the outer case 30, so as to improve the heat insulation performance of the refrigerator body, thereby saving the power consumption of the refrigerator.

The duct cover 20 is disposed inside the inner container 10, and defines a duct 11 with an inner wall of the inner container 10 for supplying cooling air to the storage compartment 13. As shown in fig. 1 and 3, the air duct cover 20 is provided with a plurality of air outlets 21 and 22 for conveying the cooling air in the air duct 11 to the interior of the storage compartment 13, so as to finish the refrigeration of food materials in the storage compartment 13.

The evaporator 50 is mounted on the liner 10. And, the evaporator 50 has at least one enhanced heat exchange portion 53, each enhanced heat exchange portion 53 being located inside the air duct 11 so as to be in contact with the flowing air flow in the air duct 11, thereby achieving convection heat exchange. A fan may be provided in the duct 11 to achieve the flow of air. The number of the reinforcing heat exchanging portions 53 may be plural, for example, two as shown in fig. 3. Alternatively, the number of the reinforcing heat exchanging portions 53 may be one. The purpose of the reinforced heat exchange part 53 is to enlarge the contact area between the reinforced heat exchange part 53 and the surrounding air, and to improve the heat convection efficiency.

In the embodiment of the invention, the evaporator 50 is arranged on the liner 10, and the reinforced heat exchange part 53 is arranged on the evaporator, so that the reinforced heat exchange part 53 is positioned in the air duct 11. In this way, the air flow in the air duct 11 is in contact with the reinforced heat exchange portion 53 in a large area during the flow process, so that efficient heat convection is completed, and the heat exchange efficiency of the evaporator 50 is very high. In addition, although the reinforcing heat exchanging part 53 is added in the embodiment of the present invention, the evaporator 50 is arranged on the inner container 10, so that excessive thickening is not needed, even the air duct 11 is not needed to be thickened, and the thinning of the evaporator 50 is facilitated. Based on this, the evaporator 50 of the refrigerator of the present invention is light and thin and efficient.

Fig. 5 is an enlarged view at a of fig. 4.

As shown in fig. 4 and 5, each of the enhanced heat exchanging parts 53 includes a plate body 531 and a plurality of fins 532. One side surface of the plate 531 is abutted against the evaporator 50 so as to be in close contact with the evaporator 50, which is more beneficial to heat exchange. The plate 531 is provided with a plurality of vent holes 533, the plurality of vent holes 533 are arranged along the horizontal direction, and each vent hole 533 is a strip hole extending along the vertical direction. A plurality of fins 532 protrude from the other side surface of the plate 531, wherein a first side bc (referring to an edge of the fin 532 for connection with the plate 531, refer to fig. 5) of each fin 532 is connected to an edge of one vent 533. The contact area between the reinforced heat exchanging part 53 and the air is increased by the fins 532, so that the heat exchanging efficiency is improved. In addition, by designing the vent 533, a part of the surface of the evaporator 50 is exposed to the outside and directly contacts with air, so that the heat exchange efficiency of the evaporator 50 is higher.

In some embodiments, the reinforced heat exchanging portion 53 may be made of a material with better heat exchanging performance, for example, a metal material, specifically, an aluminum alloy.

In some embodiments, as shown in fig. 5, the first side bc of each fin 532 may be connected to the same side edge in the width direction of each vent 533, for example, fig. 5 may be connected to the left, so that the width of each adjacent fin 532 may be equal or closest, so as to avoid uneven air flow distribution caused by larger unevenness, thereby affecting the uniformity of heat exchange.

Each fin 532 may have a rectangular shape with a length direction parallel to the first side bc. The width of each vent 533 is b, and the width of the solid portion between the vent 533 and the adjacent vent 533 (i.e., the distance from d of the left vent 533 to the middle of a of the adjacent right vent 533 in fig. 5) is k, 3.5.ltoreq.b/k.ltoreq.5.5, preferably 4.ltoreq.b/k.ltoreq.5. The shape and size of each vent 533 are preferably the same. The plane of each fin 532 is at an angle of between 80 ° and 90 ° to the plate 531, inclusive. Through the design, on one hand, the contact area between the reinforced heat exchange part 53 and the airflow is increased, and on the other hand, the flow path of the airflow is rugged, so that the contact time with the reinforced heat exchange part 53 is longer, and the convection heat exchange efficiency is higher.

In some embodiments, referring to fig. 5, each fin 532 is formed by cutting and then folding out a solid portion of the region where one vent 533 is located. That is, the base material of the reinforcing heat exchanging portion 53 is a monolithic plate, a slit in the shape of is cut, and then the solid portion in the shape of is turned out to form the fin 532. Of course, the above method is only one molding method of the reinforced heat exchanging part 53, and the reinforced heat exchanging part 53 may be molded in other ways, for example, integrally cast molding. Or the fin 532 may be separately manufactured and then welded to the plate 531. Alternatively, the fin 532 may be manufactured separately and then attached to the plate 531 by screws.

Fig. 6 is another schematic view of the evaporator 50 of fig. 4.

In some embodiments of the present invention, as shown in fig. 1 to 6, the evaporator 50 is a tube sheet type evaporator having at least one heat exchange plate 51 and heat exchange tubes 52 attached to one side of the heat exchange plate 51. The thickness of the tube-sheet evaporator is thinner, so that the evaporator 50 can be thinned, the storage space of the refrigerator is larger, and the requirements of users are met. In the tube-sheet evaporator 50, the plate 531 and the heat exchange plate 51 of the evaporator 50 can be bonded to each other so that the heat exchange effect therebetween is improved and the cooling speed of the heat exchange portion 53 is increased.

For example, as shown in fig. 4, two heat exchange plates 51 may be provided. Of course, only one heat exchange plate 51 may be provided, or 3 or more heat exchange plates 51 may be provided. The heat exchange tube 52 is passed with refrigerant, and the heat exchange plate 51 may be made of a metal material such as aluminum, which serves to increase the contact area of the evaporator 50 with air by using the heat exchange plate 51. Preferably, as shown in fig. 4, the number of heat exchange plates 51 is three, which are arranged at intervals in the vertical direction. The number of the reinforcing heat exchanging portions 53 is two, and both are provided on the uppermost and lowermost heat exchanging plates 51, respectively. I.e. the intermediate heat exchanger plate 51 is not provided with a reinforcing heat exchanger 53 to save costs.

The invention utilizes the tube plate type evaporator and is matched with the reinforced heat exchange part structure of the invention, so that the contact area of the tube plate type evaporator and the air is larger, the heat exchange area is increased in an extremely narrow space, the efficient convection heat exchange is realized, the lightening and thinning of the evaporator 50 are ensured, and the structure is very ingenious. The reinforced heat exchange part 53 occupies the internal space of the air duct 11 and does not occupy additional space, so that the storage space of the refrigerator is relatively larger, and the design thought is quite reasonable.

In some embodiments of the present invention, as shown in fig. 1 to 3, the evaporator 50 is abutted against the outer wall of the liner 10. At least one relief hole 15 is formed in the inner container 10 to allow each of the reinforced heat exchange portions 53 to extend into the air duct 11 through one of the relief holes 15. That is, the number of the relief holes 15 is the same as the number of the reinforcing heat exchanging portions 53, and the positions are opposite to each other one by one. In this way, the evaporator 50 does not occupy the internal space of the air duct 11, so that the air duct 11 only needs to accommodate the reinforced heat exchange portion 53, and no extra thickness is required.

As shown in fig. 4 and 6, the evaporator 50 is a tube sheet type evaporator having at least one heat exchange plate 51 and heat exchange tubes 52 attached to one side of the heat exchange plate 51. The reinforcing heat exchanging part 53 is attached to the other side of the heat exchanging plate 51, and the side is attached to the outer wall of the inner container 10 so as to exchange heat with the inner container 10 better. The reinforced heat exchange part 53 and the inner container 10 can be connected by adopting a screw, a buckle and/or a sticking mode.

In some embodiments of the present invention, each of the enhanced heat exchange portions 53 may be snapped into one of the relief holes 15. In this way, the reinforced heat exchange portion 53 is more tightly connected with the inner container 10, and becomes a fixing manner between the evaporator 50 and the inner container 10, and the structural design is very ingenious.

By now it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described herein in detail, many other variations or modifications of the invention consistent with the principles of the invention may be directly ascertained or inferred from the present disclosure without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims

1. A refrigerator, characterized by comprising:

a housing;

2. The refrigerator according to claim 1, wherein,

the first edge of each fin is connected to the same side edge in the width direction of each vent hole.

3. The refrigerator according to claim 2, wherein,

each fin and each vent hole are rectangular with the length direction parallel to the first side.

4. The refrigerator according to claim 3, wherein,

the width of each vent hole is b, and the width of a solid part between the vent hole and the adjacent vent hole is k, and b/k is more than or equal to 3.5 and less than or equal to 5.5.

5. The refrigerator according to claim 1, wherein,

the fin is formed by cutting and then outwards turning over the solid part of the area where one ventilation hole is located.

6. The refrigerator according to claim 1, wherein,

the included angle between the plane of each fin and the plate body is 80-90 degrees.

7. The refrigerator according to claim 1, wherein,

the evaporator is attached to the outer wall of the inner container;

8. The refrigerator according to claim 7, wherein,

the evaporator is a tube-sheet evaporator and is provided with at least one heat exchange plate and heat exchange tubes attached to one side of the heat exchange plate;

9. The refrigerator according to claim 7, wherein,

the number of the heat exchange plates is three, and the heat exchange plates are arranged at intervals along the vertical direction; and is also provided with

10. The refrigerator according to claim 7, wherein,

each reinforced heat exchange part is clamped and fixed in one of the abdicating holes.