CN219199642U - Air-cooled refrigerator - Google Patents

Abstract

The utility model belongs to the technical field of refrigerators, and particularly provides an air-cooled refrigerator. The utility model aims to solve the problem that the temperature of one storage compartment closest to a refrigerating compartment is easy to rise when the existing air-cooled refrigerator is used for defrosting. Therefore, the air-cooled refrigerator comprises a refrigerator body, a door body, a return air door and a driving device. Wherein the cabinet defines a refrigerated compartment, an air supply duct, and a first storage compartment in sequential fluid communication, the first storage compartment being disposed proximate the refrigerated compartment. The door body is limited with first return air passageway, first return air passageway through its one end with first storage room intercommunication, first return air passageway through its other end with refrigeration room intercommunication. The return air door is arranged in the first return air channel. The driving device is arranged on the door body and is in driving connection with the return air door so as to drive the return air door to open or block the first return air channel. The present utility model overcomes the above-mentioned technical problems.

Description

Air-cooled refrigerator

Technical Field

The utility model belongs to the technical field of refrigerators, and particularly provides an air-cooled refrigerator.

Background

Existing air-cooled refrigerators generally include a cabinet and a door, and the existing cabinet generally defines a refrigeration compartment and a plurality of storage compartments. The refrigerating compartments are respectively communicated with each storage compartment through an air supply channel so as to convey cold air in the refrigerating compartments into each storage compartment. Each storage compartment is communicated with the refrigeration compartment through a return air channel, so that air in the storage compartment flows back into the refrigeration compartment again. The door body of the refrigerator is used for shielding the corresponding storage room.

For one compartment closest to the refrigerated compartment, no return air channel is typically provided in the side wall of the cabinet. Normally, when the door corresponding to the one storage compartment is closed, the partition between the one storage compartment and the refrigeration compartment is not abutted against the door, so that a return air gap is formed, and air in the one storage compartment can flow back into the refrigeration compartment through the return air gap.

Since the evaporator in the refrigerating compartment is frosted during the operation of the refrigerator, the evaporator needs to be periodically defrosted in order to ensure the refrigerating efficiency of the evaporator. When defrosting an evaporator, the evaporator is heated by an electric heating wire so as to melt the frost on the evaporator. Because the distance between one storage room closest to the refrigerating room and the refrigerating room is short, heat generated in the defrosting process of the evaporator can be transferred into the one storage room from the return air gap, so that the temperature of the one storage room rises, and the storage of food in the one storage room is affected.

Disclosure of Invention

The utility model aims to solve the problem that the temperature of one storage compartment closest to a refrigerating compartment is easily increased when the conventional air-cooled refrigerator is used for defrosting.

To achieve the above object, the present utility model provides an air-cooled refrigerator including:

a housing defining a refrigeration compartment, an air supply duct, and a first storage compartment in sequential fluid communication, the first storage compartment disposed proximate the refrigeration compartment;

the door body is limited with a first return air channel, one end of the first return air channel is communicated with the first storage compartment, and the other end of the first return air channel is communicated with the refrigeration compartment;

the return air door is arranged in the first return air channel;

and the driving device is arranged on the door body and is in driving connection with the return air door so as to drive the return air door to open or block the first return air channel.

Optionally, the first return air passage is a groove formed inside the door body, and an opening of the groove faces the first storage compartment and the refrigerating compartment.

Optionally, the case includes a partition between the first storage compartment and the refrigeration compartment; the air return air door is pivotally connected with the door body, and the air return air door blocks the first air return channel through the abutting joint of the air return air door and the partition, or blocks the first air return channel through the abutting joint of the air return air door and the front side wall of the refrigeration compartment.

Optionally, the refrigeration compartment is located below the first storage compartment; the rotating shaft of the return air door is vertical to the vertical direction.

Optionally, the rotating shaft of the return air door is located at the top of the return air door.

Optionally, the driving device is a motor or an electromagnetic push rod.

Optionally, the case further defines a second storage compartment, the second storage compartment being located on a side of the first storage compartment remote from the refrigeration compartment; the air supply channel is communicated with the second storage compartment; the cabinet further defines a second return air passage communicating the second storage compartment with the refrigeration compartment.

Optionally, the second return air duct is formed at a left side and/or a right side of the first storage compartment.

Optionally, the first storage compartment is a freezer compartment and the second storage compartment is a refrigerator compartment or a temperature change compartment.

Optionally, a magnet is disposed on the return air door, and the return air door is kept at a position of opening or blocking the first return air channel by the magnet.

Based on the foregoing description, it can be appreciated by those skilled in the art that in the foregoing technical solution of the present utility model, by defining a first return air channel that communicates the first storage compartment and the refrigeration compartment by a door body of the air-cooled refrigerator, a return air door is disposed in the first return air channel, and a driving device is in driving connection with the return air door, so that the driving device can drive the return air door to move to a position that opens or blocks the first return air channel. Therefore, the air-cooled refrigerator can enable the driving device to drive the return air door to move to the position blocking the first return air channel during defrosting, and prevent heat in the refrigeration compartment from entering the first storage compartment from the first return air channel, so that the temperature rise of the first storage compartment during defrosting of the air-cooled refrigerator is avoided. Further, in the normal refrigeration of the air-cooled refrigerator, the driving device drives the return air door to move to the position for opening the first return air channel, so that air in the first storage compartment can flow back into the refrigeration compartment from the first return air channel, and the normal refrigeration of the air-cooled refrigerator to the first storage compartment is ensured.

Other advantages of the present utility model will be described in detail hereinafter with reference to the drawings so that those skilled in the art can more clearly understand the improvements object, features and advantages of the present utility model.

Drawings

In order to more clearly illustrate the technical solution of the present utility model, some embodiments of the present utility model will be described hereinafter with reference to the accompanying drawings. It will be understood by those skilled in the art that components or portions thereof identified in different drawings by the same reference numerals are identical or similar; the drawings of the utility model are not necessarily to scale relative to each other. In the accompanying drawings:

FIG. 1 is an isometric view of a wind ice chest according to some embodiments of the utility model;

FIG. 2 is a schematic representation of the construction of a refrigeration system according to some embodiments of the utility models;

FIG. 3 is a schematic cross-sectional view of a refrigerator in a refrigerated state according to some embodiments of the present utility model;

fig. 4 is an enlarged view of a portion a of the air-cooled refrigerator of fig. 3;

FIG. 5 is a schematic cross-sectional view of a refrigerator in a frosted state according to some embodiments of the present utility model;

fig. 6 is an enlarged view of a portion B of the air-cooled refrigerator of fig. 5.

Detailed Description

It should be understood by those skilled in the art that the embodiments described below are only some embodiments of the present utility model, but not all embodiments of the present utility model, and the some embodiments are intended to explain the technical principles of the present utility model and are not intended to limit the scope of the present utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive effort, based on the embodiments provided by the present utility model, shall still fall within the scope of protection of the present utility model.

It should be noted that, in the description of the present utility model, terms such as "center", "upper", "lower", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate directions or positional relationships, which are based on the directions or positional relationships shown in the drawings, are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Further, it should also be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, and can also be communicated with the inside of two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.

In addition, it should be noted that, in the description of the present utility model, the terms "cooling capacity" and "heating capacity" are two descriptions of the same physical state. That is, the higher the "cooling capacity" of a certain object (for example, evaporator, air, condenser, etc.), the lower the "heat" of the object, and the lower the "cooling capacity" of the object, the higher the "heat" of the object. Some object absorbs the cold and releases the heat, and the object releases the cold and absorbs the heat. A target maintains "cold" or "heat" to maintain the target at a current temperature. "refrigeration" and "heat absorption" are two descriptions of the same physical phenomenon, i.e., a target (e.g., an evaporator) absorbs heat while it is refrigerating.

As shown in fig. 1, in some embodiments of the present utility model, an air-cooled refrigerator includes a cabinet 100 and a door 200, the cabinet 100 defining a first storage compartment 101 and an optional second storage compartment 102, the first storage compartment 101 and the second storage compartment 102 for storing food materials. The cabinet 100 further defines a refrigerating compartment 103, and the refrigerating compartment 103 is used to provide cooling to the first storage compartment 101 and the second storage compartment 102.

As can be seen in fig. 1, the refrigerated compartment 103 is located below the first storage compartment 101 and the second storage compartment 102 is located on the side of the first storage compartment 101 remote from the refrigerated compartment 103. Further, the first storage compartment 101 is a freezing compartment, and the second storage compartment 102 is a refrigerating compartment or a temperature changing compartment.

Furthermore, in other embodiments of the utility model, one skilled in the art may also have the case 100 define any other number of compartments as desired. For example, the case 100 may define only the first storage compartment 101, or the case 100 may define three, four, five, or the like number of storage compartments.

Further, the person skilled in the art may also have the refrigerating compartment 103 located at the upper side of the first storage compartment 101 as required.

As can be seen from fig. 1, the air-cooled refrigerator has two door bodies 200, one door body 200 for shielding the first storage compartment 101 and the refrigerating compartment 103, and the other door body 200 for shielding the second storage compartment 102.

In addition, one skilled in the art may configure only one door 200 for the air-cooled refrigerator, and make the one door 200 to simultaneously shield all the storage compartments and the refrigerating compartments 103, as required.

As shown in fig. 1, in some embodiments of the present utility model, a first return air channel 201 is provided at a door 200 corresponding to the first storage compartment 101, the first return air channel 201 communicates with the first storage compartment 101 through one end thereof, and the first return air channel 201 communicates with the refrigerating compartment 103 through the other end thereof.

Preferably, the first return air duct 201 is a groove formed at the inner side of the door 200, and an opening of the groove faces the first storage compartment 101 and the refrigerating compartment 103.

In addition, the first return air duct 201 can be provided in any other possible configuration, such as a duct or a duct having openings at both ends, as desired by those skilled in the art.

As shown in fig. 2, in some embodiments of the present utility model, the air-cooled refrigerator further includes a refrigeration system 400, the refrigeration system 400 including a compressor 410, a condenser 420, a dry filter 430, a throttle reducing member 440, and an evaporator 450, which are connected end to end in this order. The throttle reducing member 440 may be a capillary tube or an electronic expansion valve.

As shown in fig. 3, in some embodiments of the present utility model, the cabinet 100 further defines an air supply duct 104, a second return duct 105, and a press bin 106, wherein the air supply duct 104 communicates with the refrigeration compartment 103, the first storage compartment 101, and the second storage compartment 102, respectively, such that the air supply duct 104 delivers cool air within the refrigeration compartment 103 into the first storage compartment 101 and the second storage compartment 102. The second return air duct 105 is used to communicate the second storage compartment 102 with the refrigerating compartment 103, so that air in the second storage compartment 102 flows back into the refrigerating compartment 103 through the second return air duct 105. The second return air duct 105 may be formed on the left or right sidewall of the first storage compartment 101. Alternatively, one skilled in the art may also provide one second return air duct 105 on each of the left and right sidewalls of the first storage compartment 101, as required.

With continued reference to fig. 3, in some embodiments of the utility model, both the compressor 410 and the condenser 420 are disposed within the press bin 106; an evaporator 450 is disposed within the refrigerated compartment 103 for refrigerating the air within the refrigerated compartment 103.

As shown in fig. 3, in some embodiments of the utility model, the refrigeration system 400 further includes a condensing fan (not shown) and a blower fan 460. Wherein the condensing fan is disposed in the press bin 106, and is used for driving external air into the press bin 106 to cool the compressor 410 and the condenser 420; the high temperature air in the press cabin 106 is then redirected to the outside. An air blower 460 is disposed in the refrigerated compartment 103 for driving cool air in the refrigerated compartment 103 to flow to the air supply duct 104.

Further, although not shown, in some embodiments of the present utility model, the air-cooled refrigerator further includes a heating device for heating the evaporator 450 to melt frost on the evaporator 450.

The heating device can be any feasible heating device, such as an electric heating wire, an electric heating sheet, an electric heating tube and the like.

In addition, the person skilled in the art can omit the heating device as required, so that the evaporator 450 can be used as the condenser 420 when defrosting, thereby melting the frost on the evaporator 450.

Optionally, a damper is provided at the outlet of the refrigerating compartment 103 or at the outlet of the air supply passage 104 to close the damper when the evaporator 450 is frosted, preventing heat in the refrigerating compartment 103 from entering the first storage compartment 101 and the second storage compartment 102 via the air supply passage 104. The damper is preferably an electronically controlled damper.

Further optionally, a damper is also provided in the interior, inlet or outlet of the second return air channel 105 to close the damper when the evaporator 450 is frosted, preventing heat from the refrigerated compartment 103 from entering the second storage compartment 102 via the second return air channel 105. The damper may be an electronically controlled damper or may be a one-way valve (e.g., a plastic sheet disposed at the outlet of the second return air channel 105).

As will be appreciated by those skilled in the art, since the air blower 460 stops rotating to block the air flow together, and since the air supply duct 104 and the second return duct 105 are long, even if no corresponding damper is provided, the heat generated when the evaporator 450 is frosted does not enter the first storage compartment 101 and the second storage compartment 102, or the heat entering the first storage compartment 101 and the second storage compartment 102 is small. Therefore, the person skilled in the art can omit the corresponding damper according to the need.

As shown in fig. 1, 3 to 6, in some embodiments of the present utility model, the air-cooled refrigerator further includes a return air door 300 disposed in the first return air duct 201 and a driving device 500 (a circle shown by a dotted line in fig. 4 and 6) drivingly connected to the return air door 300. The driving device 500 is used to drive the return air door 300 to open or block the first return air channel 201.

As shown in fig. 4 and 6, the case 100 includes a partition 110 between the first storage compartment 101 and the cooling compartment 103. The return air door 300 is pivotally connected to the door body 200, and the return air door 300 blocks the first return air passage 201 by its abutment with the partition 110 (as shown in fig. 6).

In addition, one skilled in the art can also block the first return air channel 201 by having the return air door 300 block the first return air channel 201 by its abutment with the front side wall of the refrigerated compartment 103 as desired. For example, the front side wall of the refrigerating compartment 103 shown in fig. 4 and 6 having the through hole is provided in a vertical structure, and the return air door 300 in fig. 4 can be abutted against the front side wall of the refrigerating compartment 103 when rotated clockwise. When the return air door 300 abuts against the front side wall of the refrigeration compartment 103, the through holes on the front side wall are all located below the return air door 300, so that the return air door 300 blocks the communication between the first storage compartment 101 and the refrigeration compartment 103.

Further, as can be seen from fig. 4 and 6, the rotation axis of the return air door 300 is perpendicular to the vertical direction, and the rotation axis of the return air door 300 is located at the top of the return air door 300.

Alternatively, in some embodiments of the present utility model, the driving device 500 is a motor, the housing of which is fixedly connected to the door body 200, and the rotating shaft of which is fixedly connected to the rotating shaft of the return air door 300. Preferably, the motor is disposed inside the door body 200 such that the door body 200 conceals the motor.

Further alternatively, the air-cooled refrigerator further includes two sensors, one of which is used to detect whether the return air door 300 is moved to a position blocking the first return air passage 201, and the other of which is used to detect whether the return air door 300 is moved to a position opening the first return air passage 201. The sensor may be any feasible sensor, such as a micro switch, hall sensor, reed switch, etc.

Illustratively, the sensor is a reed switch with a magnet disposed on the return air damper 300. When the return air door 300 moves to a position where the first return air duct 201 is opened, the corresponding reed switch is triggered, thereby controlling the motor to stop rotating. When the return air door 300 moves to a position blocking the first return air duct 201, the corresponding reed switch is triggered, thereby controlling the motor to stop rotating.

In other embodiments of the present utility model, the driving device 500 may also be an electromagnetic push rod. Illustratively, the rotating shaft of the return air door 300 is fixedly connected with a crank, and one end of the crank, which is far away from the return air door 300, is rotatably connected with one end of an electromagnetic push rod, and one end of the electromagnetic push rod, which is far away from the crank, is rotatably connected with the door body 200. The electromagnetic push rod drives the crank and the return air door 300 to rotate through the telescopic movement of the electromagnetic push rod, so that the return air door 300 moves to a position for opening or blocking the first return air channel 201.

Further alternatively, a magnet is provided on the return air door 300, by which the return air door 300 is maintained in a position to open or block the first return air passage 201. Further, magnets or magnetic attraction members that can be attracted by the magnets are also provided at the corresponding positions on the partition 110 and the door body 200, so that the return air door 300 is attracted to the partition 110 by the magnets thereon when moving to the position blocking the first return air passage 201; when moving to the position of opening the first return air duct 201, the door body 200 is attracted together by the magnet thereon.

Based on the foregoing description, it will be appreciated by those skilled in the art that the present utility model defines the first return air channel 201 that communicates the first storage compartment 101 and the refrigeration compartment 103 by making the door body 200 of the air-cooled refrigerator, disposing the return air door 300 in the first return air channel 201, and driving the driving device 500 to be in driving connection with the return air door 300, so that the driving device 500 can drive the return air door 300 to move to a position that opens or blocks the first return air channel 201. Therefore, the air-cooled refrigerator can enable the driving device 500 to drive the return air door 300 to move to a position blocking the first return air channel 201 during defrosting, and prevent heat in the refrigeration compartment 103 from entering the first storage compartment 101 from the first return air channel 201, thereby avoiding temperature rise of the first storage compartment 101 during defrosting of the air-cooled refrigerator. Further, in the air-cooled refrigerator of the present utility model, during normal refrigeration, the driving device 500 drives the return air door 300 to move to the position of opening the first return air channel 201, so that air in the first storage compartment 101 can flow back into the refrigeration compartment 103 from the first return air channel 201, thereby ensuring normal refrigeration of the air-cooled refrigerator to the first storage compartment 101.

Thus far, the technical solution of the present utility model has been described in connection with the foregoing embodiments, but it will be readily understood by those skilled in the art that the scope of the present utility model is not limited to only these specific embodiments. The technical solutions in the above embodiments can be split and combined by those skilled in the art without departing from the technical principles of the present utility model, and equivalent changes or substitutions can be made to related technical features, so any changes, equivalent substitutions, improvements, etc. made within the technical principles and/or technical concepts of the present utility model will fall within the protection scope of the present utility model.

Claims (10)

1. An air-cooled refrigerator, comprising:

a housing defining a refrigeration compartment, an air supply duct, and a first storage compartment in sequential fluid communication, the first storage compartment disposed proximate the refrigeration compartment;

the door body is limited with a first return air channel, one end of the first return air channel is communicated with the first storage compartment, and the other end of the first return air channel is communicated with the refrigeration compartment;

the return air door is arranged in the first return air channel;

and the driving device is arranged on the door body and is in driving connection with the return air door so as to drive the return air door to open or block the first return air channel.

2. The air-cooled refrigerator of claim 1, wherein,

the first return air passage is a groove formed on the inner side of the door body, and an opening of the groove faces the first storage compartment and the refrigerating compartment.

3. The air-cooled refrigerator of claim 2, wherein,

the box body comprises a partition between the first storage compartment and the refrigeration compartment;

the air return air door is pivotally connected with the door body, and the air return air door blocks the first air return channel through the abutting joint of the air return air door and the partition, or blocks the first air return channel through the abutting joint of the air return air door and the front side wall of the refrigeration compartment.

4. The air-cooled refrigerator of claim 3, wherein,

the refrigeration compartment is located below the first storage compartment;

the rotating shaft of the return air door is vertical to the vertical direction.

5. The air-cooled refrigerator of claim 4, wherein,

the pivot of return air door is located the top of return air door.

6. The air-cooled refrigerator of any one of claims 1 to 5 wherein,

the driving device is a motor or an electromagnetic push rod.

7. The air-cooled refrigerator of any one of claims 1 to 5 wherein,

the box body is also defined with a second storage compartment, and the second storage compartment is positioned at one side of the first storage compartment away from the refrigeration compartment;

the air supply channel is communicated with the second storage compartment;

the cabinet further defines a second return air passage communicating the second storage compartment with the refrigeration compartment.

8. The air-cooled refrigerator of claim 7, wherein,

the second return air duct is formed at the left and/or right side of the first storage compartment.

9. The air-cooled refrigerator of claim 7, wherein,

the first storage compartment is a freezer compartment and the second storage compartment is a refrigerator compartment or a variable temperature compartment.

10. The air-cooled refrigerator of any one of claims 1 to 5 wherein,

the air return air door is provided with a magnet, and the air return air door is kept at a position of opening or blocking the first air return channel through the magnet.

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