CN106403475A - Door seal structure, refrigeration device and seal device - Google Patents
Door seal structure, refrigeration device and seal device Download PDFInfo
- Publication number
- CN106403475A CN106403475A CN201610832811.7A CN201610832811A CN106403475A CN 106403475 A CN106403475 A CN 106403475A CN 201610832811 A CN201610832811 A CN 201610832811A CN 106403475 A CN106403475 A CN 106403475A
- Authority
- CN
- China
- Prior art keywords
- protuberance
- door
- sealing structure
- depressed part
- casing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/02—Doors; Covers
- F25D23/028—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2323/00—General constructional features not provided for in other groups of this subclass
- F25D2323/02—Details of doors or covers not otherwise covered
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Refrigerator Housings (AREA)
Abstract
The invention discloses a door seal structure, a refrigeration device adopting the door seal structure and a seal device adopting the door seal structure. The door seal structure comprises a door body and a container body. The side wall of the container body defines a containing space, wherein one end of the containing space is open, and the other end of the containing space is closed. The door body is used for sealing the open end of the container body. An annular outer edge and a first convex portion are formed on the side, facing the containing space, of the door body, wherein the annular edge surrounds the first convex portion. The first convex portion protrudes towards the closed end of the container body. The end, facing the door body, of the side wall is a free end. The inner edge of the free end is recessed towards the closed end, so that a first convex portion surrounding the first convex portion. At least a part of the first convex portion is contained in the first concave portion. The annular edge faces the outer edge of the free end of the side wall. The technical scheme aims to improve the leakage-resisting effect of the door seal structure.
Description
Technical field
The present invention relates to door seal field, more particularly, to a kind of door sealing structure and apply the refrigerating plant of this door sealing structure and close
Seal apparatus.
Background technology
Door sealing structure is commonly used to prevent cold air or steam from revealing, to realize the effect of anti-leak, for example, the door seal knot of refrigerator
Structure.
In prior art, the door sealing structure of refrigerator includes casing and door body, and described casing is directly covered in described door body
Opening, forms the straight gap of gas circulation, when cold air is from described door seal between described casing and described casing and described door body
When inside configuration is to described door sealing structure flows outside, straight gap between described casing and described door body for the cold air
Reveal.
The drawbacks of technique scheme exists is that the anti-leak result of described door sealing structure is not good.
Content of the invention
The main object of the present invention be provide a kind of door sealing structure it is intended to avoid door sealing structure anti-leak result not good
Drawback.
For achieving the above object, door sealing structure proposed by the present invention includes door body and casing；The side wall of described casing encloses
Form one end open, the receiving space of other end closing, described door body is used for closing the opening of described casing, described door body
In the face of the side of described receiving space forms annular outer edge and the first protuberance by described annular outer edge cincture, described first is convex
The direction going out the blind end to described casing for the portion is protruded；Described side wall in the face of described door body one end be free end, described from
From the inner edge held to the direction concave shape cyclization of described blind end around described first protuberance the first depressed part, described first is convex
Go out portion and be at least partially housed in described first depressed part, the outer edge surface of described annular outer edge and the free end of described side wall is to setting
Put.
Preferably, described door sealing structure also includes sealing member, and one end of described sealing member connects described first protuberance
In the face of the side of described blind end, the other end connects the diapire of described first depressed part, and described sealing member be used for closing described
The opening of casing.
Preferably, described sealing member is the sealing strip with inner chamber.
Preferably, described first protuberance is the annular protrusion in the face of described blind end setting or protrusion platform.
Preferably, the side in the face of described blind end of described first protuberance forms the second protuberance, and described first is convex
Go out portion and described second protuberance forms ledge structure, described second protuberance is arranged around the inner side of described wall box.
Preferably, the protrusion height of described second protuberance is 5mm-30mm.
Preferably, described second protuberance is in the face of the annular protrusion of described blind end setting.
Preferably, the direction concave shape of the lateral described blind end of the one of the close described receiving space of described first depressed part
Cyclization is at least partially housed in described second depressed part around the second depressed part of described second protuberance, described second protuberance.
The present invention also proposes a kind of refrigerating plant, and including refrigeration part and described door sealing structure, described refrigeration part is used for
For described receiving space internal refrigeration storage.
The present invention also proposes a kind of sealing device, including described door sealing structure.
In technical solution of the present invention, the side in the face of described receiving space of described door body forms annular outer edge and by described
First protuberance of annular outer edge cincture, the direction of the blind end to described casing for described first protuberance is protruded；Described side wall
The one end in the face of described door body be free end, direction concave shape cyclization from the inner edge of described free end to described blind end around institute
State the first depressed part of the first protuberance, described first protuberance is at least partially housed in described first depressed part, described ring-type
To setting, therefore, described door body embeds described casing to the outer edge surface of the free end of outer rim and described side wall, described casing and described
Formed between door body by the gap between described first protuberance and described first depressed part and described annular outer edge and described side
Gap between the outer rim of the free end of wall forms the gas flow of bending, and the gas flow of bending advantageously reduces gas pair
Stream, lifts the anti-leak result of described door sealing structure.
Brief description
In order to be illustrated more clearly that the present embodiment or technical scheme of the prior art, below will be to embodiment or existing skill
Art description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description are only the present invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
Structure shown in these accompanying drawings obtains other accompanying drawings.
Fig. 1 is the casing of door sealing structure of the present invention and the connected mode schematic diagram (casing is decomposed with door body) of door body；
Fig. 2 is mplifying structure schematic diagram at I of the door sealing structure shown in Fig. 1；
Fig. 3 is connected mode schematic diagram (casing and the door body assembling one of the casing of door sealing structure shown in Fig. 1 and door body
Body)；
Fig. 4 is mplifying structure schematic diagram at II of the door sealing structure shown in Fig. 3.
Drawing reference numeral explanation：
| Label | Title | Label | Title |
| 10 | Door body | 11 | Annular outer edge |
| 13 | First protuberance | 14 | Second protuberance |
| 20 | Casing | 21 | Free end |
| 22 | First depressed part | 23 | Second depressed part |
| 24 | Side wall | 25 | Heat-insulating heat-preserving material |
| 26 | Receiving space | 30 | Sealing member |
The realization of the object of the invention, functional characteristics and advantage will be described further in conjunction with the embodiments referring to the drawings.
Specific embodiment
Below in conjunction with the accompanying drawing in the present embodiment, the technical scheme in the present embodiment is clearly and completely described,
Obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based in the present invention
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of not making creative work,
Broadly fall into the scope of protection of the invention.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute is only used for solving in the present embodiment
Release the relative position relation between each part, motion conditions etc. under a certain particular pose (as shown in drawings), if this is specific
When attitude changes, then directionality instruction also correspondingly changes therewith.
In addition, in the present invention such as relating to the description of " first ", " second " etc. is only used for describing purpose, and it is not intended that
Indicate or imply its relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ",
The feature of " second " can be expressed or implicitly include at least one this feature.In describing the invention, the containing of " multiple "
Justice is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " connection ", " fixation " etc. should be interpreted broadly,
For example, " fixing " can be to be fixedly connected or be detachably connected, or integral；Can be mechanically connected or
Electrical connection；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary, can be the connection or two of two element internals
The interaction relationship of individual element, limits unless otherwise clear and definite.For the ordinary skill in the art, can basis
Concrete condition understands above-mentioned term concrete meaning in the present invention.
In addition, the technical scheme between each embodiment of the present invention can be combined with each other, but must be general with this area
Based on logical technical staff is capable of, will be understood that this when the combination appearance of technical scheme is conflicting or cannot realize
The combination of technical scheme does not exist, also not within the protection domain of application claims.
The present invention proposes a kind of door sealing structure.
Refer to Fig. 1 to Fig. 4, described door sealing structure proposed by the present invention includes door body 10 and casing 20；Described casing 20
Side wall 24 enclose formation one end open, the receiving space 26 of other end closing, described door body 10 is used for closing described casing 20
Opening, the side in the face of described receiving space 26 of described door body 10 forms annular outer edge 11 and by described annular outer edge 11
First protuberance 13 of cincture, the direction of the blind end to described casing 20 for described first protuberance 13 is protruded；Described side wall 24
The one end in the face of described door body 10 be free end 21, the inner edge of described free end 21 is formed to the direction depression of described blind end
Around the first depressed part 22 of described first protuberance 13, described first protuberance 13 is at least partially housed in described first depression
Portion 22, the outer edge surface of the free end 21 of described annular outer edge 11 and described side wall 24 is to setting.
In technical solution of the present invention, the side in the face of described receiving space 26 of described door body 10 forms annular outer edge 11 He
By the first protuberance 13 of described annular outer edge 11 cincture, the direction of the blind end to described casing 20 for described first protuberance 13
Protrude；One end in the face of described door body 10 of described side wall 24 is free end 21, and the inner edge of described free end 21 is to described closing
The direction concave shape cyclization at end is at least partly received around the first depressed part 22 of described first protuberance 13, described first protuberance 13
Be dissolved in described first depressed part 22, the outer edge surface of described annular outer edge 11 and the free end 21 of described side wall 24 to setting, therefore,
Described door body 10 embeds described casing 20, is formed by described first protuberance 13 and institute between described casing 20 and described door body 10
State the seam between the gap between the first depressed part 22 and the outer rim of free end 21 of described annular outer edge 11 and described side wall 24
Gap forms the gas flow of bending, and the gas flow of bending advantageously reduces gaseous exchange, and the anti-of described door sealing structure lets out for lifting
Leakage effect.
Described door body 10 and the internal filling heat insulation preservation material 25 of described casing 20, in the present embodiment, described heat-insulated guarantor
Adiabator 25 is foamed material, but described heat-insulating heat-preserving material 25 is not limited thereto.
Described first protuberance 13 can be contained in described first depressed part 22 completely, now, described first protuberance 13
In the annular protrusion of the blind end setting in the face of described casing 20, described annular protrusion annular is contained in described first depressed part
22, described annular protrusion is contained in described ring-shaped depression.
Described first protuberance 13 can also be partially housed in described first depressed part 22, now, described first protuberance
13 can be in the annular protrusion of the blind end setting in the face of described casing 20, and the outside of described annular protrusion is contained in described first
Depressed part 22, remainder is contained in described receiving space 26；Meanwhile, described first protuberance 13 can also be in the face of described case
The protrusion platform of the blind end setting of body 20, the outside of described protrusion platform is contained in described first depressed part 22, remainder
It is contained in described receiving space 26.
Gap between the outer rim of free end 21 of described annular outer edge 11 and described side wall 24, and described first protrusion
Gap between portion 13 and described first depressed part 22 is collectively forming the bending air flow channel for reducing convection effects.
The annular referring in the present invention and ring-type, are not limited in annulus, can form the square loop of coil structure, rectangular
Shape ring, rhombus ring, and arbitrary polygon coil structure, curve coil structure and other irregular coil structures, all in the same manner
Comprise within the scope of the present invention.
Described first protuberance 13 and described first depressed part 22 cooperate connection, can not only improve leakage-preventing effect,
Described door body 10 can also be carried out spacing.
Preferably, described door sealing structure also includes sealing member 30, and one end of described sealing member 30 connects described first protrusion
The side in the face of described blind end in portion 13, the other end connects the diapire of described first depressed part 22, and described sealing member 30 is used
In the opening closing described casing 20.
Described sealing member 30 located at bending air flow channel between, for closing the opening of described casing 20, with improve
The sealing effect of described door sealing structure.Described sealing member 30 can be located at the free end of described annular outer edge 11 and described side wall 24
It is also possible between described first protuberance 13 and described first depressed part 22 between 21 outer rim.
In the present embodiment, described sealing member 30 is between described first protuberance 13 and described first depressed part 22,
And one end of described sealing member 30 connects the side in the face of described blind end of described first protuberance 13, described sealing member 30
The other end connects the diapire of described first depressed part 22.Therefore, the gas in described casing 20 is after flowing through described sealing member 30,
The gap that must also be formed between the side wall 24 of the side wall of described first protuberance 13 and described first depressed part 22 and
Behind gap between the free end 21 of described annular outer edge 11 and described side wall 24, could reveal, therefore, described door sealing structure
Anti-leak result more preferably, can avoid repeatedly freezing or heat the energy loss leading to, and meanwhile, described sealing member 30 is located at described
Concealed door seal can also be formed, by described sealing member 30, described door between first protuberance 13 and described first depressed part 22
Body 10 forms closed shape with described casing 20, forms maximally effective inner air and outer air convection current baffle element.
Form twice cross-ventilation between described door body 10 and described casing 20 to stop.Wherein, beyond described sealing member 30
Gap be that first cross-ventilation stops, described sealing member 30 is the stop of second cross-ventilation.
During specific use, described sealing member 30 can be fixedly connected with described door body 10, or with described case
The side wall 24 of body 20 is fixedly connected.In the present embodiment, one end of described sealing member 30 embeds described door body 10, so that described close
Sealing 30 is connected with described door body 10, by closing described door body 10, makes the other end of described sealing member 30 be pressed on described case
The side wall 24 of body 20, to form the receiving space 26 of closing.
Preferably, described sealing member 30 is the sealing strip with inner chamber.
Described sealing member 30 is the sealing strip with inner chamber, and described gasket structure is simple, and anti-leak result is good.In order to
Improve the anti-leak result of described sealing member 30 further, described sealing strip can form inner chamber, and described sealing strip is to described case
When the opening of body 20 forms ring seal structure, described inner chamber also can fill sky in described opening, described inner chamber
The gas medium of gas or other low thermal conductivities, liquid medium or solid dielectric.
Preferably, described first protuberance 13 is the annular protrusion in the face of described blind end setting or protrusion platform.
Described first protuberance 13 for annular protrusion or can protrude platform, when the thickness of described casing 20 is larger, prevents letting out
The effective thickness of leakage is larger, in the present embodiment, in order to ensure the thickness of described casing 20, to maintain preferable anti-leak effect
Really, described first protuberance 13 is preferably and protrudes platform structure.
Certainly, described first protuberance 13 is not limited in platform structure, has certain thickness bulge-structure all in the same manner
It is included within protection scope of the present invention.
Preferably, the side in the face of described blind end of described first protuberance 13 forms the second protuberance 14, and described the
One protuberance 13 and described second protuberance 14 form ledge structure, and described second protuberance 14 is around described casing 20 side wall 24
Inner side setting.
The setting of described second protuberance 14, introduces the 3rd between described door body 10 and the side wall 24 of described casing 20
Road cross-ventilation stops, therefore, before the gas within described casing 20 flows through described sealing member 30, needs to first pass through the 3rd
Road cross-ventilation stops, reduce further the leakage of gas, anti-leak result is higher.
Preferably, the protrusion height of described second protuberance 14 is 5mm-30mm.
The protrusion height of described second protuberance 14 is H, when the span of H is 5mm-30mm, neither disturbs described case
Receiving space 26 within body 20, is also provided that the more suitable gas circulation gap of length.
In the present embodiment, the protrusion height H of described second protuberance 14 is preferably 15mm-20mm.
Preferably, described second protuberance 14 is in the face of the annular protrusion of described blind end setting.
Described second protuberance 14 is ringwise raised, and therefore, the setting of described second protuberance 14 not only reduces air
Convection current, also will not increase the thickness of described door body 10 further, prevent the blocked up waste leading to of described door body 10.
Preferably, the direction of the lateral described blind end of the one of the close described receiving space 26 of described first depressed part 22 is recessed
Fall into the second depressed part 23 being formed around described receiving space 26, described second protuberance 14 is at least partially housed in described second
Depressed part 23.
Described second depressed part 23 of side wall 24 formation described second protuberance 14 of avoidance of described casing 20, described second
Depressed part 23 can make to form very narrow gap, with further between described second protuberance 14 and the side wall 24 of described casing 20
Bending gas flow, reduces cross-ventilation.
The present invention also proposes a kind of refrigerating plant, and including refrigeration part and described door sealing structure, described refrigeration part is used for
For described receiving space 26 internal refrigeration storage.
Described refrigerating plant is the device with refrigerating function, for example refrigerator, refrigerator etc..Described refrigeration part is used for as institute
State receiving space 26 internal refrigeration storage, described door sealing structure is used for avoiding cold air to reveal.
At the gap between described door body 10 and described casing 20, the side in the face of described casing 20 of described door body 10
Encapsulant or insulation material can be laid, the free end 21 of described casing 20 can also lay encapsulant or insulation material,
To reduce gaseous exchange further.
The present invention also proposes a kind of sealing device, including described door sealing structure.
Described sealing device can be to have the device of heat-production functions, such as calorstat, baking box etc. or have system
The device of cold function, can also be the sealing device hiding gas, liquid and solid for envelope.
The foregoing is only the preferred embodiments of the present invention, not thereby limit the present invention the scope of the claims, every this
Under the inventive concept of invention, the equivalent structure transformation made using description of the invention and accompanying drawing content, or directly/indirectly use
In the scope of patent protection that other related technical fields are included in the present invention.
Claims (10)
1. a kind of door sealing structure is it is characterised in that include door body and casing；The side wall of described casing encloses formation one end open,
The receiving space of other end closing, described door body is used for closing the opening of described casing, described collecting faced by described door body
The side in space forms annular outer edge and the first protuberance by described annular outer edge cincture, and described first protuberance is to described case
The direction of the blind end of body is protruded；One end in the face of described door body of described side wall is free end, the inner edge of described free end to
, around the first depressed part of described first protuberance, described first protuberance is at least part of for the direction concave shape cyclization of described blind end
It is contained in described first depressed part, the outer edge surface of the free end of described annular outer edge and described side wall is to setting.
2. door sealing structure as claimed in claim 1 is it is characterised in that described door sealing structure also includes sealing member, described sealing
One end of part connects the side in the face of described blind end of described first protuberance, and the other end connects the bottom of described first depressed part
Wall, and described sealing member is for closing the opening of described casing.
3. door sealing structure as claimed in claim 2 is it is characterised in that described sealing member is the sealing strip with inner chamber.
4. door sealing structure as claimed in claim 1 is it is characterised in that described first protuberance is in the face of described blind end setting
Annular protrusion or protrude platform.
5. door sealing structure as claimed in claim 2 it is characterised in that described first protuberance in the face of described blind end one
Side forms the second protuberance, and described first protuberance and described second protuberance form ledge structure, described second protuberance ring
Around the setting of the inner side of described wall box.
6. door sealing structure as claimed in claim 5 is it is characterised in that the protrusion height of described second protuberance is 5mm-
30mm.
7. door sealing structure as claimed in claim 5 is it is characterised in that described second protuberance is in the face of described blind end setting
Annular protrusion.
8. door sealing structure as claimed in claim 5 is it is characterised in that the close described receiving space of described first depressed part
One laterally described blind end direction concave shape cyclization around described second protuberance the second depressed part, described second protuberance is extremely
Small part is contained in described second depressed part.
9. a kind of refrigerating plant is it is characterised in that include refrigeration part and door as claimed in any of claims 1 to 8 in one of claims
Seal structure, described refrigeration part is used for as described receiving space internal refrigeration storage.
10. a kind of sealing device is it is characterised in that include the door sealing structure described in any one in claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610832811.7A CN106403475A (en) | 2016-09-19 | 2016-09-19 | Door seal structure, refrigeration device and seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610832811.7A CN106403475A (en) | 2016-09-19 | 2016-09-19 | Door seal structure, refrigeration device and seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106403475A true CN106403475A (en) | 2017-02-15 |
Family
ID=57996915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610832811.7A Pending CN106403475A (en) | 2016-09-19 | 2016-09-19 | Door seal structure, refrigeration device and seal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106403475A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111121371A (en) * | 2019-12-25 | 2020-05-08 | 青岛海尔电冰箱有限公司 | Refrigerator with a door |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5606828A (en) * | 1995-03-14 | 1997-03-04 | Gencorp Inc. | Magnetic door gasket |
| CN101839604A (en) * | 2010-05-19 | 2010-09-22 | 合肥美的荣事达电冰箱有限公司 | Icebox |
| CN101995136A (en) * | 2009-08-25 | 2011-03-30 | 海信科龙电器股份有限公司 | Door seal structure of refrigerator |
| CN103940178A (en) * | 2013-01-23 | 2014-07-23 | 海尔集团公司 | Door seal structure of refrigerating plant and refrigerating plant |
| CN204154050U (en) * | 2014-09-30 | 2015-02-11 | 海信（山东）冰箱有限公司 | A kind of direct cooling refrigerator |
| CN104848640A (en) * | 2015-05-07 | 2015-08-19 | 广东奥马电器股份有限公司 | Butterfly door of refrigerator |
-
2016
- 2016-09-19 CN CN201610832811.7A patent/CN106403475A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5606828A (en) * | 1995-03-14 | 1997-03-04 | Gencorp Inc. | Magnetic door gasket |
| CN101995136A (en) * | 2009-08-25 | 2011-03-30 | 海信科龙电器股份有限公司 | Door seal structure of refrigerator |
| CN101839604A (en) * | 2010-05-19 | 2010-09-22 | 合肥美的荣事达电冰箱有限公司 | Icebox |
| CN103940178A (en) * | 2013-01-23 | 2014-07-23 | 海尔集团公司 | Door seal structure of refrigerating plant and refrigerating plant |
| CN204154050U (en) * | 2014-09-30 | 2015-02-11 | 海信（山东）冰箱有限公司 | A kind of direct cooling refrigerator |
| CN104848640A (en) * | 2015-05-07 | 2015-08-19 | 广东奥马电器股份有限公司 | Butterfly door of refrigerator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111121371A (en) * | 2019-12-25 | 2020-05-08 | 青岛海尔电冰箱有限公司 | Refrigerator with a door |
| CN111121371B (en) * | 2019-12-25 | 2020-11-20 | 青岛海尔电冰箱有限公司 | Refrigerator with a door |
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Application publication date: 20170215 |