CN111271928A

CN111271928A - Air interchanger for household appliance door body and refrigerator

Info

Publication number: CN111271928A
Application number: CN202010186538.1A
Authority: CN
Inventors: 陈小平; 陈建军; 高一博; 陈波
Original assignee: Foshan Viomi Electrical Technology Co Ltd
Current assignee: Foshan Viomi Electrical Technology Co Ltd
Priority date: 2020-03-17
Filing date: 2020-03-17
Publication date: 2020-06-12

Abstract

The invention relates to a ventilation device for a household appliance door body, which comprises a ventilation device body, wherein the ventilation device body is fixed on the household appliance door body; the breather body includes: the air duct is used for forming an air passage inside and outside the door body; the switch piece is used for controlling the opening and closing of the air duct; the power part is used for providing air exchange power inside and outside the door body; when the interior of the box body needs to be ventilated, the switch piece is in the first state, the air channel is opened, and the power piece works to enable the interior and the exterior of the door body to exchange air; and after the air exchange is finished, the switch piece is in the second state, and the air channel is closed. The invention also relates to a refrigerator comprising the device. The invention provides a ventilation device for a household appliance door body, which solves the problem that the household appliance cannot be ventilated.

Description

Air interchanger for household appliance door body and refrigerator

Technical Field

The invention belongs to the technical field of household appliances, and particularly relates to a ventilation device and a refrigerator for a household appliance door body.

Background

The inside unresponsive of current refrigerator removes flavor/purifier, and the refrigerator can produce some complex gas after using for a long time, and the complex gas is stored for a long time inside the box, can cause breeding of bacterium, forms the pollution source in the refrigerator, aggravates the pollution of refrigerator, and then endangers people's health.

Therefore, the ventilation device in the refrigerator is needed to be provided to ensure that the interior of the refrigerator keeps a healthy food storage environment, the structural design of the ventilation device is optimized, and the ventilation device for the household appliance door body is designed to solve the problems.

Disclosure of Invention

In order to overcome the defects of the prior art, the first object of the invention is to provide a ventilator for a household appliance door body, which comprises a ventilator body, wherein the ventilator body is fixed on the household appliance door body; the ventilation device body includes:

the air duct is used for forming an air passage inside and outside the door body;

the switch piece is used for controlling the opening and closing of the air duct;

the power part is used for providing air exchange power inside and outside the door body;

when the interior of the box body needs to be ventilated, the switch piece is in a first state, the air channel is opened, and the power piece works to enable the interior and the exterior of the door body to exchange air; and after the air exchange is finished, the switch piece is in the second state, and the air channel is closed.

Preferably, the ventilation device further comprises a cover shell with a plurality of ventilation holes, and the part of the ventilation device body is arranged in the cover shell; the cover casing is fixed on the top or the bottom of the household appliance door body.

Preferably, the household appliance door further comprises a fixed seat, and the cover shell is fixed at the top or the bottom of the household appliance door body through the fixed seat; at least a portion of the holder is covered by the cover.

Preferably, the cover casing is fixed on one side close to the hinge of the household appliance door body.

Preferably, the switch member is an air baffle which initially closes the air duct; under the action of wind pressure, a gap is formed between the air baffle plate and the air channel or one end of the air channel, and the air passes through the air baffle plate and then exchanges air through the gap; after the wind pressure disappears, the air baffle automatically falls back to the initial position.

Preferably, the air-conditioning system further comprises an air guide plate, wherein the air guide plate is arranged at one end of the air channel, and the air is exchanged through a gap between the air guide plate and one end of the air channel after passing through the air guide plate.

Preferably, the extending plane of the air guide plate forms an acute angle with the flow direction of the intake airflow in the air duct.

Preferably, the air guide plate is hinged to one end of the air duct; the air duct is opened, and the size of the opening section between the air guide plate and the air duct is adjusted by configuring different air pressures.

Preferably, the air duct at least comprises a first air duct and a second air duct, the first air duct is communicated with the external environment of the box body, and the second air duct is communicated with the inside of the box body; the first air duct and the second air duct have different cross-sectional areas.

Preferably, the air conditioner further comprises at least one filter element, wherein the filter element is positioned in the air duct or at one end of the air duct.

Preferably, the filtering piece is a filtering membrane, and the filtering membrane covers one side of the cover close to the box body along the extending direction of the cover.

The second purpose of the invention is to provide a refrigerator, which comprises a refrigerator body and a plurality of door bodies for sealing the refrigerator body, wherein the door bodies further comprise the air interchanger body, and the air interchanger body is opened to exchange the air inside and outside the refrigerator body.

Preferably, the cover of the ventilator body is inserted between the two door bodies.

Preferably, the outer contour of the cover casing is located on one side of a plane formed by the two door bodies.

Compared with the prior art, the invention has the beneficial effects that:

(1) the air interchanger is arranged on the door body, so that the space at the back of the box body is saved, and the air interchanger is convenient to install and maintain.

(2) Set up the breather body in the housing for housing and a plurality of door body form unanimous overall structure, promote user experience.

(3) The air baffle is arranged as the switch piece, so that the structure of the air interchanger body is simplified.

(4) The extending plane of the air guide plate and the flow direction of the air inlet flow in the air duct form an acute angle so as to guide the flow direction of the air.

(5) The air guide plate is hinged to one end of the air duct, and different air pressures are configured to adjust the size of the opening section between the air guide plate and the air duct, so that the size of air entering the box body is controlled.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings. The detailed description of the present invention is given in detail by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

FIG. 1 is a front view of a refrigerator in accordance with one embodiment of the present invention;

FIG. 2 is a sectional view of a refrigerator having a ventilator body according to an embodiment of the present invention;

FIG. 3 is a partial enlarged view of a refrigerator having a ventilator body according to an embodiment of the present invention;

FIG. 4 is a schematic view of the structure inside the housing according to an embodiment of the present invention.

Shown in the figure:

100. the refrigerator comprises a refrigerator, a door body 1, an upper door body 2, a lower door body 11 and a fixed seat;

200. the air interchanger body: 21. air guide plate, 22, wind channel, 221, first wind channel, 222, second wind channel, 23, switch spare, 24, filter, 25, power spare, 26, housing.

Detailed Description

The foregoing and other objects, features, aspects and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings, which will enable those skilled in the art to practice the present invention with reference to the accompanying specification. In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to designate the same or similar components. In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, and the like are used based on the orientation or positional relationship shown in the drawings. In particular, "height" corresponds to the dimension from top to bottom, "width" corresponds to the dimension from left to right, and "depth" corresponds to the dimension from front to back. These relative terms are for convenience of description and are not generally intended to require a particular orientation. Terms concerning attachments, coupling and the like (e.g., "connected" and "attached") refer to a relationship wherein structures are secured or attached, either directly or indirectly, to one another through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise. 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.

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.

Example one

As shown in fig. 1-4, the air interchanger for the door body of the household appliance is preferably a refrigerator, and the refrigerator comprises a refrigerator body and the door body. The air interchanger comprises an air interchanger body 200, and the air interchanger body is fixed on a household appliance door body. Specifically, the ventilator body 200 is completely or partially disposed in the door body of the home appliance. The refrigerator door body can be provided with one air interchanger body, but sometimes, because the space in the refrigerator is large and the power of the power part is small, one air interchanger body can be arranged on a plurality of door bodies of the refrigerator body or a plurality of air interchanger bodies can be arranged on the same door body. When the refrigerator is a cross refrigerator, a ventilation device body 200 is respectively arranged between two pairs of upper and lower door bodies, particularly at the bottom of the two upper door bodies.

In some embodiments, to hide components in the ventilator body and improve the overall aesthetics, the ventilator further includes a housing 26 in which portions of the ventilator body 200 are disposed, such as power elements, filter elements, etc. The cover 26 is fixedly connected with the top or bottom of the household appliance door body, so that the cover and the door body rotate together. The fixed connection mode is a connection mode that the door body and the cover shell move together through a bolt joint, a clamping joint or a rotating shaft penetrating through the cover shell and the door body. In order to achieve air exchange between the inside and outside of the box, the casing 26 includes a number of air vents, which may be of any shape. It should be understood that the ventilator body may be entirely disposed within the door of the home appliance to eliminate the provision of the cover.

In some embodiments, the housing 26 may be fixed to the door body of the household electrical appliance through the fixing seat 11, and at this time, the fixing seat 11 is fixedly connected to the housing 26, and the fixing connection is a common fixing manner such as a clamping adhesion. The fixing seat 11 is fixed at the top or bottom of the household appliance door body, preferably, at one side close to the hinge of the household appliance door body. The housing 26 covers the fixing base 11 or covers the front side (the front side of the box body) of the fixing base at least to hide the fixing base 11, so that a user cannot directly see the fixing base 11, and user experience is improved. In order to ensure the aesthetic property and the integrity of the surface where the refrigerator door body is located, the fixed seat 11, the housing 26 and the household appliance door body form a consistent overall outline. Namely, the thickness of the side edge of the fixed seat 11 on the door body is consistent with that of the side door body, so that the side edge of the fixed seat 11 and the side edge of the door body are visually integrated. The main portion of the cover 26 is located at the user side, and the cover 26 is flush with the edge of the door body at one end, i.e., the cover 26 does not extend beyond the edge of the door body. The fixed seat 11 is fixedly connected with the housing 26 to form an accommodating area for power parts, filter parts and the like.

The housing 26 is provided with a plurality of vents to facilitate ingress and egress of air from the interior of the enclosure and from the environment external to the enclosure. The casing 26 may be provided as a grid with gaps between each grid. The cover 26 and the fixed base 11 forming an integral structure are fixedly connected to the upper door body 1, and at this time, the size and shape of the fixed base 11 and the cover 26 form an integral structure with the door body of the household appliance, that is, the fixed base 11 and the cover 26 become a part of the door body. Decorative pieces or LOGOs such as patterns, LOGO and the like can be arranged on the housing 26.

The ventilator body 200 includes: the air duct 22 is a hollow tubular member, and the air duct 22 is disposed on the refrigerator body to form an air passage inside and outside the door body, so that even if air in the refrigerator body enters the external environment of the refrigerator body through the air duct 22, air in the external environment of the refrigerator body enters the refrigerator body through the air duct 22. Preferably, as shown in fig. 1, the ventilation device body 200 is disposed between the upper door body 1 and the lower door body 2 of the refrigerator 100 on a side close to the door hinge, and the space is generally used as a holding area to open the door body, but since a user often opens the door from the holding areas close to the centers of the left and right door bodies of the refrigerator 100 as a force application point, the side of the holding area close to the door hinge becomes an idle area, and the embodiment of the invention fully utilizes the idle space on the holding area of the refrigerator 100 by disposing the ventilation device body 200 on the side of the holding area close to the door hinge.

The ventilation device body 200 further includes a switch 23, the switch 23 is disposed at any one of the two ends of the air duct or the switch 23 is directly disposed inside the air duct 22, and the opening and closing of the air duct 22 are controlled by controlling the state of the switch 23. In some embodiments, the switch 23 is a right-angle solenoid valve, the right-angle solenoid valve is connected to the air duct 22, and when the right-angle solenoid valve is opened, the air duct 22 communicates with the inside of the box and the outside environment of the box for air exchange; when the right-angle electromagnetic valve is closed, air exchange between the interior of the box body and the external environment of the box body cannot be carried out. In addition, the switch member may be a solenoid valve or the like capable of performing an opening or closing function. When the refrigerator is provided with a plurality of door bodies, the air interchanger body can be arranged on any door body, and the rapid air interchange in the refrigerator body is realized through the joint operation of the plurality of air interchanger bodies.

Generally, when the switch 23 is opened and the air duct 22 is unobstructed, air replacement can be performed between the inside and the outside of the box body through the air duct, but the air duct has a small caliber, so that the air exchange efficiency is low. In order to improve the air exchange efficiency, the air exchange device body 200 further includes a power member 25, and the power member 25 is used for providing air exchange power inside and outside the door body, that is, accelerating air exchange between the inside of the box body and the outside environment of the box body. The power part 25 is a device for realizing gas exchange between the inside and the outside of the box body. In some embodiments, when the power element 25 is a combination of a fan and an air pump, the fan is disposed at one end of the air duct 22, that is, one end of the air outside the refrigerator body enters the inside of the refrigerator body, and when the refrigerator needs to be deodorized (i.e., the air inside the refrigerator body is deodorized), the fan is commanded to rotate, and under the rotation of the fan, a negative pressure is generated at one end of the air outside the refrigerator body entering the inside of the refrigerator body to form an air suction effect, so that the air inside the refrigerator body enters the environment outside the refrigerator body through the air; when fresh air needs to be put into the refrigerator, an air pump is commanded to operate, and the air pump can draw air into the refrigerator body from the outside of the refrigerator body through the air duct 22. When specifically using, go on in order to guarantee deodorization and taking a breath in the box in step, can set up fan and air pump periodic operation to make the concentration of foul smell in the box air be less than the default, when the default indicates that foul smell concentration is the default in the box, the smell user is acceptable in the box, and can not cause bacterial growing. In other embodiments, the power element 25 is a ventilator, the ventilator is disposed on the air duct 22, the ventilator is a low-power ventilator, and when the switch element is turned on and the air duct 22 is unobstructed, the ventilator works to exchange air inside the box body with air outside the box body; the switch 23 is closed, the air duct 22 is closed, and the ventilator stops working. In addition, the power component 25 can be a common fan, when the refrigerator needs to be deodorized (air inside the refrigerator body is deodorized), the fan is commanded to rotate, and under the rotation of the fan, negative pressure is generated at one end of the air duct outside the refrigerator body, which enters the refrigerator body, so that an air suction effect is formed, and the air inside the refrigerator body enters the external environment of the refrigerator body through the air duct; at the moment, an air pump is not needed, and under the condition that the air duct is kept open, air outside the box body directly enters the box body through the air duct. It will be appreciated that the power member 25 may simply be an air pump, i.e. an air pump capable of drawing air into the housing from outside the housing through the air duct 22. When the box body needs to exhaust, the air in the box body directly enters the box body through the air channel under the condition that the air channel is kept open.

After the refrigerator is used for a long time, some complex gas can be generated in the refrigerator, so that bacteria can be bred. At this time, the air in the refrigerator body needs to be exchanged. The switch element 23 is controlled to be in an open state, so that the air duct 22 is opened, when the power element is a ventilation fan, the power element 25 starts to work, and air exchange is performed between the inside of the refrigerator body and the external environment of the refrigerator body through the air duct 22; after the ventilation is finished, the control switch is in a closed state, and the air duct 22 is closed. In other embodiments, the control switch 23 is in an open state, so that the air duct 22 is opened, when the power element 25 is an air pump and a fan, the air pump and the fan are controlled to work simultaneously or sequentially, and air exchange is performed between the inside of the refrigerator body and the environment outside the refrigerator body through the air duct 22; after the ventilation is finished, the control switch is in a closed state, and the air duct 22 is closed. In addition, when the power part is a fan, the control switch part 23 is in an open state, so that the air duct 22 is opened, the fan is controlled to work, and air exchange is performed between the inside of the refrigerator body and the outside environment of the refrigerator body through the air duct 22; after the ventilation is finished, the control switch is in a closed state, and the air duct 22 is closed. The end of ventilation can be judged by the real-time concentration of odor or complex gas in the box body, and the concentration of the gas is measured by a concentration monitoring device. In addition, the ventilation device body can be directly controlled to operate for 5-10 minutes, namely the ventilation is finished.

As shown in fig. 3, the air duct 22 includes a first air duct 221 and a second air duct 222, the first air duct 221 is communicated with the external environment of the box, the second air duct 222 is communicated with the inside of the box, and the first air duct 221 and the second air duct 222 are integrally formed or assembled. The first air duct 221 and the second air duct 222 have different cross-sectional areas, so that air passing through the air ducts 22 with different cross-sectional areas has different air volumes or air speeds.

When the first air duct 221 and the second air duct 222 are assembled, in some embodiments, the second air duct 222 is sleeved in the first air duct 221 and a sleeved portion is formed in the first air duct 221, where the sleeved portion is an end portion of the second air duct 222 close to one side of the box body. By combining the first air duct 221 and the second air duct 222, the air duct is convenient to disassemble and maintain when the air duct breaks down.

Because the length of the air duct required by the refrigerators with different models can have certain difference, in order to facilitate the air duct with the same size to be suitable for the refrigerators with various models, in some embodiments, the total length of the air duct formed by combining a plurality of air ducts can be finely adjusted. Under the action of external force, the sleeving part can move towards the direction of the box body or away from the direction of the box body so as to change the length of the sleeving part in the first air duct 221, and thus the total length of the first air duct and the second air duct is changed.

In some embodiments, the switch 23 is an air baffle (not shown), and the air baffle is hinged in the air duct 22 or at one end of the air duct 22 to control the opening or closing of the air duct 22 through the air baffle. In an initial state, the air baffle closes the air duct 22, and the air baffle is located in the air duct 22 or at a port of the air duct 22; under the action of external force, a gap is formed between the air baffle and the inside of the air duct 22 or the port of the air duct 22, and the air passes through the air baffle and then exchanges air through the gap; after the external force disappears, the air baffle automatically falls back to the initial position. The external force is specifically an external force capable of changing the air pressure in the air duct 22, and the external force can be provided by the air pump. After the air pump is opened, the air baffle in the initial state moves under the action of wind pressure, so that a gap is formed between the air baffle and the inside of the air duct 22 or the port of the air duct 22, and the air is exchanged through the gap after passing through the air baffle; after the external force disappears, the air baffle automatically falls back to the initial position to seal the air duct 22.

To direct the air, in some embodiments, the air exchange device further comprises an air guide plate 21. The air guide plate 21 is fixed to one end of the air duct 22 (the air guide plate 21 is not movable), and a gap exists between the air guide plate 21 and the end of the air duct 22, and the air passes through the air guide plate 21 and then exchanges air through the gap between the air guide plate 21 and the end of the air duct 22.

In other embodiments, the air guide plate 21 is hinged to one end of the air chute 22, i.e. the air guide plate 21 is movable relative to the port of the air chute 22. When the ventilator body does not include a device for changing the wind pressure in the wind tunnel, the air passes through the air guide plate 21 and then is exchanged through the gap between the air guide plate 21 and one end of the wind tunnel 22. The device capable of changing the air pressure in the air duct can be an air pump, when the air interchanger body comprises a device capable of changing the air pressure in the air duct 22, the air duct is opened, and the size of the opening section between the air guide plate 21 and the air duct is adjusted by configuring different air pressures. Namely, the air channel 22 is opened, the air pump is opened, and the air guide plate 21 and one end of the air channel 22 form a larger gap (compared with the gap between the air guide plate 21 and the air channel 22 when the air pump is not opened) for air exchange; when the air duct 22 is closed, the air guide plate 21 automatically falls back to the initial position. At this time, the refrigerator or the user can select whether to start the device, such as an air pump, capable of changing the air pressure in the air duct according to the air volume required during air exchange. When the air exchange needs to be performed quickly in the box body, the air quantity passing through the gap between the air guide plate 21 and the air duct 22 needs to be increased. At this time, the air pressure generated by the air pump can be changed by adjusting the air pump, and the different air pressures result in different gaps formed at the ports of the air guide plate 21 and the air duct 22, so as to change the amount of air passing through the gaps at the same time.

In some embodiments, the extension plane of the air guide plate 21 forms an acute angle with the flow direction of the intake air in the air duct, and the air is guided by the inclined air guide plate 21 and then exchanged through the gap between the air guide plate 21 and one end of the air duct 22.

As shown in fig. 3, the ventilator body 200 further includes at least one filter 24, the filter 24 is used for filtering impurities in the air entering or leaving the box, and the filter can be disposed inside the air duct 22, at or near two inlets and outlets of the air duct 22. When the filter element is located at one end of the air duct, the filter element 24 is a filter membrane, and the filter membrane covers one side of the cover 26 close to the box body along the extending direction of the cover 26. I.e., the filter element 24, may be shaped and sized according to the shape and size of the housing 26 so that air entering and exiting the housing is in sufficient contact with the filter element 24. The filter element 24 can also be a filter box, and a filter layer (mesh enclosure), an adsorption layer (active carbon), a smell layer and the like are arranged in the filter box, so that the filtering, the sterilization and the smell removal of the internal and external space exchange of the box body are realized.

Example two

As shown in fig. 1 to 4, a refrigerator includes a refrigerator body and a plurality of door bodies that seal the refrigerator body, and the door bodies further include the ventilator body according to the above embodiment, and the air inside and outside the refrigerator body is exchanged by opening the ventilator body.

In some embodiments, the cover 26 of the ventilator body is embedded between the two door bodies, so that the position of the ventilator body does not affect the installation of other devices on the door bodies.

In some embodiments, the outer contour of the cover 26 is located on one side of the plane formed by the two doors, so as to form an overall contour of the cover 26 in the same plane as the plane formed by the two doors. Specifically, the refrigerator comprises an upper door body 1 and a lower door body 2, a cover 26 is installed between the upper door body 1 and the lower door body 2, and the thickness of the cover 26 is consistent with that of the upper door body and the lower door body, that is, the cover 26 does not protrude out of the upper door body 1 and the lower door body 2, so that the plane where the cover 26 is located and the plane where the upper door body 1 and the lower door body 2 are located form a consistent overall outline.

The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any manner; those skilled in the art can readily practice the invention as shown and described in the drawings and detailed description herein; however, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the scope of the invention as defined by the appended claims; meanwhile, any changes, modifications, and evolutions of the equivalent changes of the above embodiments according to the actual techniques of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. The air interchanger for the household appliance door body is characterized by comprising an air interchanger body, wherein the air interchanger body is fixed on the household appliance door body; the ventilation device body includes:

2. The air interchanger of claim 1 further comprising a housing having a plurality of vents, a portion of the air interchanger body being disposed within the housing; the cover casing is fixed on the top or the bottom of the household appliance door body.

3. The air interchanger of claim 2, further comprising a fixing seat, wherein the housing is fixed to the top or bottom of the appliance door body by the fixing seat; at least a portion of the holder is covered by the cover.

4. The air exchange device for a door of an electric appliance according to claim 2, wherein the cover is fixed to a side adjacent to a hinge of the door of an electric appliance.

5. The air interchanger of claim 1 wherein said switch member is an air baffle which initially closes said air duct; under the action of wind pressure, a gap is formed between the air baffle plate and the air channel or one end of the air channel, and the air passes through the air baffle plate and then exchanges air through the gap; after the wind pressure disappears, the air baffle automatically falls back to the initial position.

6. The air interchanger of claim 1, further comprising an air guide plate disposed at one end of the air duct, wherein the air passes through the air guide plate and then exchanges air through a gap between the air guide plate and the one end of the air duct.

7. The air interchanger of claim 6, wherein the plane of extension of the air guide plate forms an acute angle with the direction of the incoming air flow in the air duct.

8. The air interchanger of claim 6, wherein said air guide is hingedly connected to one end of said duct; the air duct is opened, and the size of the opening section between the air guide plate and the air duct is adjusted by configuring different air pressures.

9. The air interchanger for the household appliance door body as claimed in claim 1, wherein the air duct at least comprises a first air duct and a second air duct, the first air duct is communicated with the environment outside the refrigerator body, and the second air duct is communicated with the inside of the refrigerator body; the first air duct and the second air duct have different cross-sectional areas.

10. The air interchanger of claim 2 further comprising at least one filter element located in the duct or at an end of the duct.

11. The air interchanger of a door body of an electric appliance according to claim 10, wherein the filter member is a filter film which covers a side of the cover case adjacent to the cabinet in an extending direction of the cover case.

12. A refrigerator comprising a refrigerator body and a plurality of door bodies for sealing the refrigerator body, wherein the door bodies further comprise the ventilator body according to any one of claims 1 to 11, and the air inside and outside the door bodies is exchanged by opening the ventilator body.

13. The refrigerator as claimed in claim 12, wherein a cover of the ventilator body is inserted and installed between the door bodies.

14. The refrigerator as claimed in claim 13, wherein the outer contour of the casing is located at one side of a plane formed by the two door bodies.