WO2017113769A1

WO2017113769A1 - Convertible frost-free and direct cool refrigerator

Info

Publication number: WO2017113769A1
Application number: PCT/CN2016/090983
Authority: WO
Inventors: 吴乔晔; 朱小兵; 刘鹏; 刘昀曦
Original assignee: 青岛海尔股份有限公司
Priority date: 2015-12-29
Filing date: 2016-07-22
Publication date: 2017-07-06
Also published as: CN105526756A

Abstract

A convertible frost-free and direct cool refrigerator (100) comprises an individual chamber, an accommodating space (20) enclosed by an individual chamber liner (21), and a refrigeration system used to provide cold air. The refrigerator (100) also comprises a cavity (23) disposed at an outer wall (211) of the liner (21) away from the accommodating space (20) and performing heat exchange with the accommodating space (20) via the liner (21), and a first air duct (41) and a second air duct (42) in communication with the accommodating space (20). At any same instant, at most one of the first air duct (41) and the second air duct (42) is in a ventilation state.

Description

Wind straight cold conversion refrigerator

This application claims the priority of the Chinese patent application filed on Dec. 29, 2015, the application number is 201511023320.X, the title of the invention is "a wind-cooled conversion refrigerator", the entire contents of which are incorporated herein by reference. In the application.

Technical field

The invention relates to a wind-to-cool conversion refrigerator, belonging to the technical field of household appliances.

Background technique

The existing refrigerators are basically divided into two categories: direct-cooling refrigerators and air-cooled refrigerators. The cooling method of air-cooled refrigerators is usually cooled by an evaporator, and then the cold air is distributed to the various refrigerating compartments through the air duct system, and the cold air directly enters the cooling room. In the inter-room, the indoor food in the refrigerating room is easy to air dry, affecting the fresh-keeping effect, and is not conducive to storing foods with high moisturizing requirements; the cooling method of the direct-cooling refrigerator is that the cooling amount generated by the evaporator directly cools the refrigerating compartment, and the evaporator is set in the refrigerating room. Outdoor or indoor cooling room, the direct cooling refrigerator is characterized by good moisture retention, but it is not convenient to store dry food.

At present, when storing foods that need to be maintained in a wet or dry state, a sealed storage box is generally disposed in a separate storage compartment of the refrigerator, and the storage box is used for maintaining the wet state or the dry state of the food. For example, in an air-cooled refrigerator, a closed dry storage box is provided; or, in a direct-cooled refrigerator, a sealed moisturizing storage box is provided, and the like.

The storage box that realizes the above functions not only has high requirements on technology and cost, but also increases the difficulty of implementation; and it is difficult for the user to correctly use the storage box during use, thereby failing to achieve the proper use. The effect; also not smart enough to affect the user experience.

Therefore, it is necessary to design a refrigerator that can change the air-cooling and direct-cooling methods according to the needs of use.

Summary of the invention

In order to solve the above problems, the present invention provides a wind-to-cool-transformed refrigerator, in which the independent compartment can be changed in the air-cooling and direct-cooling modes to solve the technical problem that the humidity is uncontrollable.

In order to achieve the above object, an embodiment of the present invention provides a wind-to-cold-cooling type refrigerator, which includes an independent compartment, an accommodation space surrounded by the independent compartment, and a cooling for providing cold air. System, the refrigerator further includes

a cavity disposed at an outer wall of the inner casing away from the accommodating space, wherein the cavity and the accommodating space are heat exchanged through the inner casing;

a first air passage communicating with the accommodating space;

a second air passage communicating with the cavity;

At least one of the first air duct and the second air duct is in a ventilated state at the same time.

As a further improvement of an embodiment of the present invention, the cavity is disposed on one side of the outer wall or at a plurality of sides that are not coplanar.

According to a further improvement of an embodiment of the present invention, the refrigerator further includes an outer sleeve sleeved outside the inner liner, and a cavity is formed between an outer wall of the inner liner and an inner wall of the outer bladder, wherein The distance from each position of the inner wall to the outer wall is the same.

According to a further improvement of an embodiment of the present invention, the outer bladder is provided with an air inlet and a return air inlet communicating with the second air duct, and the air inlet and the air return opening are respectively located at the bottom of the outer bladder The wall, the top bile wall of the outer bladder.

As a further improvement of an embodiment of the present invention, the refrigerator further includes a damper assembly, and the damper assembly is configured to selectively open the first air duct and the second air duct.

As a further improvement of an embodiment of the present invention, the refrigerator includes an insulation layer, and the insulation layer is disposed at least on a side of the cavity away from the accommodating space.

As a further improvement of an embodiment of the present invention, the refrigerator further includes an air cooling mode and a direct cooling mode, wherein the first air passage is in the ventilation state when the refrigerator is in the air cooling mode; The second air duct is in the ventilated state when the refrigerator is in the direct cooling mode.

As a further improvement of an embodiment of the present invention, the refrigerator further includes a control system, and the control system is configured to at least control the refrigerator to change between the air cooling mode and the direct cooling mode.

As a further improvement of an embodiment of the present invention, the refrigerator further includes a fan, and the fan is at least used to adjust an air volume in the first air passage.

Compared with the prior art, the air-cooled conversion type refrigerator provided by an embodiment of the present invention provides a cavity by arranging a cavity outside the accommodating space, and the accommodating space and the cavity can respectively enter the air at different times, thereby realizing the accommodating space. The air-cooling and direct-cooling cooling modes can be changed to meet the different humidity requirements in the accommodating space.

DRAWINGS

1 is a schematic structural view of a direct-cooling conversion type refrigerator according to an embodiment of the present invention;

2 is a schematic view showing the cooperation of the independent compartment, the cavity and the air duct system according to an embodiment of the present invention;

3 is a schematic structural view of a separate compartment according to another embodiment of the present invention;

Figure 4 is a cross-sectional view taken along line A-A of Figure 3;

detailed description

The invention will be described in detail below in conjunction with the specific embodiments shown in the drawings. However, the embodiments are not intended to limit the invention, and the structural, method, or functional changes made by those skilled in the art in accordance with the embodiments are included in the scope of the present invention.

It should be understood that in the description of the present invention, the terms "center" and "longitudinal" are used unless otherwise clearly defined and defined. To, "horizontal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" The orientation or positional relationship of the indications, such as "outside" or the like, is based on the orientation or positional relationship shown in the drawings, and is merely for the convenience of the description of the present invention and the simplified description, rather than indicating or implying that the device or component referred to must have a specific Azimuth, construction and operation in a particular orientation are therefore not to be construed as limiting the invention. In addition, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to FIG. 1 to FIG. 2, an embodiment of the present invention provides a refrigerator 100 that can be changed in air-cooling and direct-cooling modes. The refrigerator 100 includes a casing 1 and a door body 3 and is housed in the casing 1 independently. Comparing room, refrigeration system (not shown) and air duct system.

The refrigeration system is for providing cold air. Specifically, the refrigeration system includes an evaporator, a condenser, a compressor, and the like, and the cold air may be formed at the evaporator and used to at least cool the independent compartment.

The independent compartment may be specifically configured as a refrigerating compartment, a freezing compartment, and other independent refrigerating compartments. The independent compartment includes a liner 21, an accommodating space 20 surrounded by the liner 21, and a cavity 23.

The accommodating space 20 can be used for storing the articles, and the door body 3 can be used for opening and closing the accommodating space 20. When the door body 3 is opened, the accommodating space 20 can be used for picking up and placing food.

The inner casing 214 of the inner casing 21 is adjacent to the inner wall 214 of the accommodating space 20 and the outer wall 211 away from the accommodating space 20 . The cavity 23 is disposed at the outer wall 211 and is not adjacent to the accommodating space 20 . In communication, the cavity 23 and the accommodating space 20 can exchange heat through the inner tank 21.

The air duct system includes a first air duct 41 and a second air duct 42.

The first air duct 41 is in communication with the accommodating space 20, and when the first air duct 41 is in a ventilating state, the cold air may be circulated between the evaporator and the accommodating space 20. . Specifically, the first air duct 41 includes a first air inlet duct and a first air return duct, and cold air formed at the evaporator can enter the accommodating space 20 through the first air inlet duct, and then The cold air is returned to the evaporator through the first return air passage. In this way, the cold air directly enters the accommodating space 20 to cool the accommodating space 20 by air cooling.

The second air duct 42 is in communication with the cavity 23, and the cold air may circulate between the evaporator and the cavity 23 when the second air duct 42 is in a ventilated state. Specifically, the second air duct 42 includes a second air inlet duct and a second air return duct, and cold air formed at the evaporator can enter the cavity 23 through the second air inlet duct, and then pass through The second return air passage returns to the evaporator. In this way, the cold air does not directly enter the accommodating space 20, and enters the cavity 23, and the cavity 23 exchanges heat with the accommodating space 20 through the inner casing 21, thereby The space 20 is cooled in a direct cooling mode.

At the same time, at most one of the first air passage 41 and the second air passage 42 is in a ventilated state, thereby realizing the on-demand transformation of the cooling mode of the independent compartment.

One embodiment of the present invention provides a refrigerator, wherein a cavity is provided outside the accommodating space, and the cavity and the accommodating space are The heat exchange is carried out through the inner tank, and the accommodating space and the cavity respectively enter the air at different times, so that the accommodating space of the independent compartment can change the air cooling and the direct cooling cooling mode according to the demand, thereby adjusting the accommodating space. Humidity changes.

Specifically, the inner liner 211 includes a rear side, a top side 2111, a bottom side 2113, a left side, and a right side that are not coplanar with each other, wherein the cavity 23 can be disposed on the outer wall 211 of the inner liner Side or side. Referring to Figure 2, the cavity 23 of the embodiment shown in Figure 2 is disposed at least at the rear side of the inner liner wall 211.

The air duct system also includes a main air duct 40, a damper assembly, and a blower 44.

The main air duct 40 is in communication with the first air duct 41 and the second air duct 42 respectively. Specifically, the main air duct 40 is disposed at the refrigeration system, and the main air duct 40 includes an air outlet end and an air inlet end, and the air outlet end is respectively connected to the first air inlet duct and the first air duct The second air duct is connected to allow cold air at the refrigeration system to enter the first air inlet duct and/or the second air inlet duct through the main air duct 40; The first return air passage and the second return air passage are connected to cause the cold air of the first return air passage and/or the second return air passage to return to the refrigeration system through the main air passage 40 At the office. In this way, the uniform layout of the refrigeration system and the air duct system can be facilitated, and layout confusion and cooling loss caused by too many independent air passages can be avoided.

Of course, in other embodiments, the first air duct 41 and the second air duct 42 may be disposed as independent air ducts that do not intersect each other.

The first air inlet 212 and the first air return 213 are disposed on the inner casing 21, and the first air inlet and the first air return passage respectively pass through the first air inlet 212 and the first return The tuyere 213 is in communication with the accommodating space 20.

The refrigerator 100 further includes a second air inlet 222 and a second air return 223, and the second air inlet and the second air return passage respectively pass through the second air inlet 222 and the second air return 223 It is in communication with the cavity 23.

The damper assembly can be used to selectively open the first air duct 41 and the second air duct 42.

Specifically, the damper assembly includes a first damper 71 and a second damper 72. The first damper 71 and the second damper 72 are used to open and close the first air passage 41 and the second air passage 42 respectively. Preferably, the number of the first dampers 71 is set to two and located in the first inlet duct and the first return duct respectively, and the two first dampers 71 may be arranged to be synchronously linked. Similarly, the number of the second dampers 72 is set to two and located in the second inlet duct and the second return duct respectively, and the two second dampers 72 may be arranged to be synchronously linked.

The fan 44 is disposed in the main air duct 40. When the running speed of the fan 44 is slower, the air volume in the main air duct 40 becomes larger and the wind speed becomes faster. Accordingly, the main air duct is 40 The amount of wind entering the first duct 41 / the second duct 42 also becomes large. When the fan 44 is stopped, the main duct 40 is in a non-ventilated state. In other embodiments, the fan 44 may also be disposed in the first air passage 41 to directly adjust the air volume in the first air passage 41.

The refrigerator 100 further includes a heat insulating layer 5 disposed on a side of the cavity 23 away from the accommodating space 20 to reduce the loss of cooling in the cavity 23.

In addition, the refrigerator 100 further includes a control system for controlling operation of the refrigerator 100, and the control system is configured to be connected to the fan 44 to control an operating state of the fan 44; The control system is further configured to be coupled to the damper assembly to control opening and closing of the damper assembly; the control system may be further configured to be coupled to the refrigeration system to control operation of the refrigeration system.

In an embodiment of the present invention, the refrigerator 100 includes an air cooling mode and a direct cooling mode, and when the refrigerator 100 is in the air cooling mode, the first air passage 41 is in the ventilation state; When the refrigerator 100 is in the direct cooling mode, the second air duct 42 is in the ventilated state.

Correspondingly, the control system is configured to at least control the refrigerator 100 to change between the air cooling mode and the direct cooling mode. When the accommodating space 20 is used to store items such as dried fruits, grains, and the like that require a relatively dry storage environment, the control system controls the refrigerator 100 to be in the air cooling mode. Specifically, the control system controls the first A damper 71 is opened, the second damper 72 is closed, and the fan 44 is controlled to operate, so that the cold air enters the accommodating space 20 through the first air passage 41. Thus, the humidity in the accommodating space 20 can be reduced while cooling. Similarly, when the accommodating space 20 is used for storing fruits, vegetables, and the like that require a relatively humid environment, the control system controls the refrigerator 100 to be in the direct cooling mode. Specifically, the control system controls The second damper 72 is opened, the first damper 71 is closed, and the fan 44 is controlled to operate so that the cold air enters the cavity 23 through the second air duct 42. In this way, the humidity in the accommodating space 20 is not affected while cooling, thereby ensuring that the accommodating space 20 maintains a humid environment.

Referring to another embodiment shown in FIG. 3 and FIG. 4, the embodiment is different from the embodiment shown in FIG. 2 in that the cavity 23 of the embodiment is disposed on five sides of the inner wall 211 of the inner casing. The cold air in the cavity 23 simultaneously exchanges heat with the accommodating space 20 from the five faces of the inner casing 21, thereby increasing the heat exchange area between the cold air and the accommodating space 20 in the cavity 23, and improving heat exchange. Efficiency to achieve fast cooling.

Specifically, the refrigerator 100 includes a casing 22, and the outer casing 22 is sleeved outside the inner casing 21, and an inner wall 221 of the outer casing 22 and the outer wall 211 of the inner casing 21 form an Cavity 23. The intersection of the outer bladder 22 and the inner liner 21 is hermetically connected by glue or the like. The distance from the position of the inner wall 221 of the outer casing to the outer wall 211 of the inner casing is the same, so that when the cold air exchanges heat with the accommodating space 20 in the cavity 23, the accommodating space 20 The temperature is uniform throughout.

In addition, the outer casing 22 includes a top biliary wall, a bottom biliary wall, a rear biliary wall, and opposite side bilge walls, and the second air inlet 222 and the second air return 223 are respectively disposed on the two sides. On the side of the gallbladder wall.

In other embodiments, the second air inlet 222 and the second air return 223 may also be respectively disposed on the bottom biliary wall and the top biliary wall, so that cold air can enter the cavity 23 from the bottom. Then, the cavity 23 is gradually filled until the top portion leaves the cavity 23, thereby enhancing the cooling effect.

Compared with the prior art, the air-cooled conversion type refrigerator provided by an embodiment of the present application passes through the accommodation space. The cavity is arranged, and the accommodating space and the cavity can enter the wind at different times, so that the accommodating space can change the air cooling mode and the direct cooling mode, thereby satisfying different humidity requirements in the accommodating space.

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 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. It is included in the scope of protection of the present invention.

Claims

The utility model relates to a wind-to-cool-transformed refrigerator, which comprises a separate compartment, an accommodation space surrounded by the independent compartment, and a refrigeration system for providing cold air, wherein the refrigerator further comprises

a cavity disposed at an outer wall of the inner casing away from the accommodating space, wherein the cavity and the accommodating space are heat exchanged through the inner casing;

a first air passage communicating with the accommodating space;

a second air passage communicating with the cavity;

At least one of the first air duct and the second air duct is in a ventilated state at the same time.
The air-to-cold-change refrigerator according to claim 1, wherein the cavity is disposed on one side of the outer wall or at a plurality of sides that are not coplanar.
The air-to-cool-transformed refrigerator according to claim 1, wherein the refrigerator further comprises an outer casing sleeved outside the inner casing, and an outer wall of the inner casing and an inner wall of the outer casing A cavity is formed wherein the distance from the inner wall to the outer wall is the same.
The air-to-cooling conversion type refrigerator according to claim 3, wherein the outer casing is provided with an air inlet and a return air port which are in communication with the second air duct, and the air inlet and the air return port are respectively Located on the bottom bile wall of the outer bladder, the top gallbladder wall of the outer bladder.
The air-to-cool conversion refrigerator according to claim 1, wherein the refrigerator further comprises a damper assembly, and the damper assembly is configured to selectively open the first air passage and the second air passage.
The air-to-cooled conversion type refrigerator according to claim 1, wherein the refrigerator comprises an insulation layer, and the insulation layer is disposed at least on a side of the cavity away from the accommodation space.
The air-to-cool conversion refrigerator according to claim 1, wherein the refrigerator further comprises an air cooling mode and a direct cooling mode, wherein when the refrigerator is in the air cooling mode, the first air passage is in The ventilation state; when the refrigerator is in the direct cooling mode, the second air duct is in the ventilation state.
The air-to-cool-transition type refrigerator according to claim 7, wherein the refrigerator further comprises a control system, and the control system is configured to at least control the refrigerator in the air-cooling mode and the direct cooling mode Change between.
The air-to-cool-transition type refrigerator according to claim 1, wherein the refrigerator further comprises a fan, and the fan is used for at least adjusting an air volume in the first air passage.