CN112006476A - Air-cooled unit and display cabinet with same - Google Patents
Air-cooled unit and display cabinet with same Download PDFInfo
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- CN112006476A CN112006476A CN201910448917.0A CN201910448917A CN112006476A CN 112006476 A CN112006476 A CN 112006476A CN 201910448917 A CN201910448917 A CN 201910448917A CN 112006476 A CN112006476 A CN 112006476A
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- air
- evaporator
- unit
- cooled
- air outlet
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- 238000001704 evaporation Methods 0.000 claims abstract description 33
- 230000008020 evaporation Effects 0.000 claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 238000003860 storage Methods 0.000 claims description 12
- 238000010257 thawing Methods 0.000 claims description 10
- 238000005192 partition Methods 0.000 claims description 7
- 238000005303 weighing Methods 0.000 claims description 7
- 238000009826 distribution Methods 0.000 claims description 5
- 238000009825 accumulation Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000005057 refrigeration Methods 0.000 abstract description 14
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000008774 maternal effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
- A47F3/00—Show cases or show cabinets
- A47F3/04—Show cases or show cabinets air-conditioned, refrigerated
- A47F3/0404—Cases or cabinets of the closed type
- A47F3/0408—Cases or cabinets of the closed type with forced air circulation
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The invention provides an air-cooled unit and a display cabinet with the same, wherein the air-cooled unit comprises a unit box, an evaporator and an evaporation fan, wherein a first accommodating chamber is formed on the upper side of the unit box; an air outlet duct extending from the position of the evaporation fan to the position of the air outlet is formed below the top wall, and the evaporation fan is positioned above the evaporator so as to blow air cooled by the evaporator into the air outlet duct during operation; based on the air-cooled unit provided by the invention, in a scene of being particularly applied to a display cabinet, the air-cooled unit can realize a refrigeration function in the display cabinet; and because its integrated mode that sets up, for easily realizing mass production, the unit that same production line assembled also has better compatibility.
Description
Technical Field
The invention relates to the field of electric appliances, in particular to an air-cooled unit and a display cabinet with the same.
Background
The display cabinet is often adopted in the market to show articles for people, and when the displayed articles have low requirements on the environmental temperature, a refrigeration system is generally required to be equipped for the display cabinet, wherein the refrigeration system generally comprises an evaporator, an evaporation fan, a condenser, a condensation fan, a compressor and other hardware structures. In the prior art, the above-mentioned hardware structures are generally distributed in different areas of the display case, such as: the evaporator is located on the rear wall of the display cabinet, the compressor is located at the bottom of the display cabinet, and the evaporation fan is close to the top of the display cabinet. The structure mode enables the assembly efficiency of the display cabinet with the refrigeration system to be low, and the assembly of the refrigeration system hardware of the display cabinet with different models cannot be realized through completely consistent assembly actions in an automatic production flow.
In view of the above, there is a need to provide an improved solution to the above problems.
Disclosure of Invention
The invention aims to solve at least one technical problem in the prior art, and provides an air-cooled unit for achieving the purpose of the invention.
An air-cooled unit comprises a unit box, an evaporator and an evaporation fan, wherein a first accommodating chamber is formed in the upper side of the unit box; the unit box is provided with a top wall, a rear wall and a front wall which respectively correspond to the top side, the rear side and the front side of the first containing chamber, and an air inlet and an air outlet are respectively formed on one side of the top wall close to the rear wall and the front wall; the top end of the evaporator inclines towards one side of the rear wall and forms a abdicating channel between the top end of the evaporator and the rear wall of the containing cavity, and air enters the abdicating channel below the evaporator from the air inlet; an air outlet duct extending from the position of the evaporation fan to the position of the air outlet is formed below the top wall, and the evaporation fan is located above the evaporator and blows air cooled by the evaporator into the air outlet duct during operation.
Further, the unit case has the position in roof downside with the roof presss from both sides jointly and establishes and form the wind channel baffle in air-out wind channel, evaporation fan is the centrifugal fan of air inlet end orientation downwards.
Further, in the evaporimeter front side, first accepting the room still has be located wind channel baffle downside and with the cold storage chamber of evaporimeter upside space intercommunication.
Furthermore, in the width direction of the unit box, at least two evaporation fans which are arranged in parallel to supply air to the air outlet duct are arranged above the evaporator.
Further, the air outlet is set up and is run through by a plurality of intervals the through-hole of roof constitutes jointly, a plurality of the through-hole in the distribution span of unit case width direction is not less than two at least evaporation fan's distribution span.
Furthermore, the unit box is also provided with a bottom wall corresponding to the bottom side of the first accommodating chamber, a converging area for converging accumulated water is formed on the bottom wall at a position right below the evaporator, and a flow guide hole for guiding the accumulated water in the first accommodating chamber out is formed in the converging area; in the confluence region, the horizontal height of the upper surface of the bottom wall is gradually reduced in the direction close to the flow guide holes.
Furthermore, the unit box is also provided with a second containing chamber formed on the lower side of the bottom wall, and a water receiving box for receiving accumulated water led out by the flow guide hole is arranged in the second containing chamber.
Further, the air-cooled unit is also provided with a compressor, a condenser and a condensing fan which are arranged in the second accommodating chamber, and the water receiving box is arranged at the top of the compressor.
Further, the air-cooled unit is also provided with a defrosting unit for heating the evaporator during operation, a weighing unit for sensing the current weight of the evaporator, a storage unit for storing female parent data of the weight of the evaporator under different operation states without frosting, a comparison and judgment unit for comparing the sensed weight of the weighing unit with the female parent data corresponding to the current state stored in the storage unit and judging whether the frosting amount of the evaporator exceeds a preset threshold value, and a control unit for controlling the operation of the defrosting unit when the frosting amount of the evaporator exceeds the preset threshold value.
The invention also provides a display cabinet, and the bottom of the display cabinet is provided with the air-cooled unit.
The invention has the beneficial effects that: based on the structure of the air-cooled unit provided by the invention, in a scene of being particularly applied to a display cabinet, the structure can realize the refrigeration function inside the display cabinet; and because its integration mode that sets up, for realizing the mass production more easily, the unit that same production line was assembled also can adapt to the refrigeration of different model show cupboard.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic diagram of an embodiment of the air-cooled assembly of the present invention;
FIG. 2 is a schematic view of another embodiment of the air-cooled assembly of the present invention;
FIG. 3 is an enlarged view of a portion a of FIG. 2;
FIG. 4 is a top plan view of the air-cooled assembly of the present invention;
fig. 5 is a schematic view of an embodiment of the display case of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the air-cooled unit 100 according to the present invention includes a unit case 11 having a first receiving chamber (not shown) formed at an upper side thereof, an evaporator 12 disposed in the first receiving chamber, and an evaporation fan 13. The unit box 11 has a top wall 111, a rear wall 112 and a front wall 113 corresponding to the top, rear and front sides of the first receiving chamber, and the top wall 111 has an air inlet 141 and an air outlet 142 formed at a side close to the rear wall 112 and the front wall 113.
The top end of the evaporator 12 related in the invention inclines towards one side of the rear wall 112, and a receding channel 140 for air to enter the lower part of the evaporator 12 from the air inlet 141 is formed between the top end of the evaporator 12 and the rear wall 112 of the containing cavity; that is, the air from the air inlet 141 cannot directly enter the evaporator 12 from the top of the evaporator 12. In an implementation, an air guiding plate (not labeled) may be disposed on the top end of the evaporator 12, and the offset channel 140 is a channel formed by the air guiding plate and the rear wall 112 of the accommodating cavity.
Further, in the present invention, the evaporation fan 13 is located above the evaporator 12, the air outlet duct 150 extending from the position of the evaporation fan 13 to the position of the air outlet 142 is formed below the top wall 111 of the unit case 11, and the air cooled by the evaporator 12 is blown into the air outlet duct 150 when the evaporation fan 13 operates. More specifically, when the evaporation fan 13 is operated, due to the adsorption force at the air inlet end of the evaporation fan 13, the air entering the lower portion of the evaporator 12 through the air inlet 141 and the abdication channel 140 can pass through the evaporator 12 to achieve cooling and refrigeration, and the cold air entering the evaporation fan 13 can be discharged to the air outlet channel 150 through the air outlet end of the evaporation fan 13 and discharged to the upper space of the unit case 11 through the air outlet 142.
Referring to fig. 5, the present invention also provides a display case, in the bottom of which the air-cooled unit 100 according to the present invention is disposed. Specifically, the display cabinet of the present invention further includes a cabinet body 21 having a storage cavity, and a door 22 disposed at a front side of the cabinet body 21 for opening or closing the cabinet body 21; the air-cooled unit 100 according to the present invention is disposed at the bottom of the cabinet body 21, and the air outlet 142 side is disposed close to the door 22, and the air inlet 141 side is disposed far from the door 22. Based on the above structure, when the air-cooled unit 100 operates, the interior of the storage cavity of the cabinet body 21 can be refrigerated.
In some preferred embodiments of the present invention, referring to fig. 5, in some embodiments, partitions 210 dividing the storage cavity into multiple layers of spaces may be further disposed in the storage cavity of the cabinet body 21, and in order to facilitate air circulation between the multiple layers of spaces, each partition 210 is provided with a plurality of through holes (not shown) passing through the partition up and down.
Based on the integrated arrangement mode of the air-cooled unit 100 provided by the invention, batch production is easy to realize, and the units assembled on the same production line can adapt to refrigeration of display cabinets of different models.
Further, as a preferred embodiment of the present invention, referring to fig. 1, the air outlet duct 150 in this embodiment is formed by a top wall 111 and a duct partition 15 located below the top wall 111, which are clamped together, and the evaporation fan 13 is a centrifugal fan with an air inlet end facing downward. When the centrifugal fan works, gas axially enters the impeller and is radially discharged, so that the centrifugal fan is adopted for the evaporation fan 13, the air flow guiding can be avoided by adopting excessive air deflectors, and the wind resistance loss is reduced, namely the centrifugal fan is adopted for the evaporation fan 13, so that the whole structure of the unit is more reasonable.
Referring to fig. 1, in the present embodiment, the first accommodating chamber further has a cold accumulation chamber 101 located below the air duct partition 15 and communicated with the space above the evaporator 12 at the front side of the evaporator 12. In the circulation refrigeration of the air-cooled unit 100, when a circulation refrigeration process is finished, a certain amount of cold can be accumulated in the cold accumulation cavity 101, so that when the next circulation refrigeration is started and the temperature of the evaporator 12 is not reduced to a lower temperature, the cold accumulated in the cold accumulation cavity 101 can be supplemented to ensure that the cold air entering the air outlet duct 150 has a temperature which is not too high, and the display cabinet has a relatively stable refrigeration effect.
Referring to fig. 1 and 4, in some embodiments of the present invention, at least two evaporation fans 13 are disposed above the evaporator 12 in the width direction of the unit case 11, and are arranged in parallel to supply air to the air outlet duct 150. Considering that display cases generally have a wide size, a plurality of evaporation fans 13 can make the cooling more uniform. Specifically, in the embodiment shown in fig. 4, two evaporation fans 13 are arranged in parallel, and the evaporation fans 13 guide the outlet air into the outlet air duct 150 through the volute 130.
As further shown in fig. 4, in order to make the air outlet 142 more uniform, the air outlet 1420 in this embodiment is formed by a plurality of through holes 1420 disposed at intervals and penetrating through the top plate. Preferably, in the specific implementation process, the distribution span of the plurality of through holes 1420 in the width direction of the unit box 11 is not less than the distribution span of the evaporation fan 13, as shown in fig. 4, that is, W1 is not greater than W2.
As shown in fig. 1, the unit box 11 of the present invention further has a bottom wall 114 corresponding to a bottom side of the first accommodating chamber, and a converging region (not shown) for converging accumulated water is formed at a position right below the evaporator 12 on the bottom wall 114, and a flow guide hole 1140 for guiding the accumulated water in the first accommodating chamber is formed in the converging region. In order to facilitate the confluence of accumulated water, the horizontal height of the upper surface of the bottom wall 114 is gradually reduced in the direction close to the flow guide holes 1140 in the confluence region; namely, a slope for accumulated water to flow towards the diversion hole 1140 is formed in the confluence area.
In this embodiment, as shown in fig. 1, the unit box 11 further has a second receiving chamber 102 formed at the lower side of the bottom wall 114, and a water receiving box 16 for receiving the accumulated water guided by the guiding hole 1140 is disposed in the second receiving chamber 102. In other embodiments of the present invention, the accumulated water guided out from the guiding holes 1140 may also be directly guided out to the outside of the unit box 11 (not shown) through a pipeline.
Further, the air-cooled unit 100 of the present embodiment further includes a compressor 17, a condenser 18 and a condensing fan 19 disposed in the second accommodating chamber 101; preferably, the water receiving box 16 is disposed at the top of the compressor 17, so that during the operation of the compressor 17, water in the water receiving box 16 can be evaporated to cool the compressor 17 to a certain extent, and thus the service life of the compressor 17 can be prolonged.
In addition, in order to realize the intelligent defrosting control of the air-cooled unit 100 of the present invention, the air-cooled unit 100 of the present invention further includes a defrosting unit for heating the evaporator 12 during operation, a weighing unit for sensing the current weight of the evaporator 12, a storage unit for storing parent data of the weight of the evaporator 12 in different operation states without frosting, a comparison and determination unit for comparing the sensed weight of the weighing unit with the parent data corresponding to the current state stored in the storage unit and determining whether the frosting amount of the evaporator 12 exceeds a preset threshold, and a control unit for controlling the operation of the defrosting unit when the frosting amount of the evaporator 12 exceeds the preset threshold.
Based on the arrangement of the related structure of intelligent defrosting control, the air-cooled unit can realize evaporator defrosting pertinently, and further the refrigeration efficiency of the air-cooled unit is reliably improved.
Referring to fig. 2 and 3, unlike the structure shown in fig. 1, a rotation support portion 1120 is fixed in the first receiving chamber 101 of the present embodiment, and is rotatably connected to the top end of the evaporator 12 to support the top of the evaporator 12. Specifically, in the present embodiment, the rotation supporting portion 1120 is a bracket fixed on the rear wall 112 of the unit case 11, and the top end of the evaporator 12 is rotatably connected to the bracket through the rotating shaft 120.
Further, in the embodiment, the weighing module is the pressure sensor 10 disposed at the bottom end of the evaporator 12, and since the top end of the evaporator 12 is rotatably connected to the rotating support portion 1120, when the frost amount on the surface of the evaporator 12 is different, the pressure of the evaporator 12 on the pressure sensor 10 is inevitably different. In practice, based on this pressure data, it is easier to calculate the current weight of the evaporator 12.
In a specific implementation process, the defrosting unit referred to in the embodiment may be a heating wire or the like. The maternal data stored in the storage unit can be obtained by: when the air-cooled unit 100 is powered on for the first time, the weights of the evaporator 12 in different operation states are detected and obtained through the pressure sensor 10 in the first operation period, and the obtained data can be used as female parent data. In addition, the "preset threshold" referred to in the present invention can be adjusted according to actual requirements.
It is understood that, since the rotation support portion 1120 also has a certain support for the evaporator 12, the data sensed by the pressure sensor 10 is not completely consistent with the actual weight of the evaporator 12, but the data sensed by the pressure sensor 10 and the weight of the evaporator 12 have a linear relationship, and therefore, the weight of the evaporator 12 can be easily obtained through the data sensed by the pressure sensor 10.
Although the description is given in terms of embodiments, not every embodiment includes only a single embodiment, and such description is for clarity only, and those skilled in the art will recognize that the embodiments described herein may be combined as a whole to form other embodiments as would be understood by those skilled in the art.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (10)
1. An air-cooled unit is characterized by comprising a unit box, an evaporator and an evaporation fan, wherein a first accommodating chamber is formed in the upper side of the unit box; the unit box is provided with a top wall, a rear wall and a front wall which respectively correspond to the top side, the rear side and the front side of the first containing chamber, and an air inlet and an air outlet are respectively formed on one side of the top wall close to the rear wall and the front wall; the top end of the evaporator inclines towards one side of the rear wall and forms a abdicating channel between the top end of the evaporator and the rear wall of the containing cavity, and air enters the abdicating channel below the evaporator from the air inlet; an air outlet duct extending from the position of the evaporation fan to the position of the air outlet is formed below the top wall, and the evaporation fan is located above the evaporator and blows air cooled by the evaporator into the air outlet duct during operation.
2. The air-cooled unit according to claim 1, wherein the unit case has an air duct partition plate located on the lower side of the top wall and forming the air outlet duct together with the top wall, and the evaporation fan is a centrifugal fan with an air inlet end facing downward.
3. The air-cooled type unit according to claim 2, wherein the first housing chamber further has a cold accumulation chamber located at a lower side of the air duct partition and communicating with a space at an upper side of the evaporator at a front side of the evaporator.
4. The air-cooled type unit according to claim 2, wherein at least two evaporation fans are provided above the evaporator in the width direction of the unit case, and are arranged in parallel to supply air to the air outlet duct.
5. The air-cooled unit according to claim 4, wherein the air outlet is formed by a plurality of through holes which are arranged at intervals and penetrate through the top plate, and the distribution span of the plurality of through holes in the width direction of the unit box is not less than that of the at least two evaporation fans.
6. The air-cooled unit according to any one of claims 1 to 5, wherein the unit case further has a bottom wall corresponding to a bottom side of the first accommodating chamber, a converging region for converging accumulated water is formed in the bottom wall at a position directly below the evaporator, and a guide hole for guiding the accumulated water in the first accommodating chamber out is formed in the converging region; in the confluence region, the horizontal height of the upper surface of the bottom wall is gradually reduced in the direction close to the flow guide holes.
7. The air-cooled aggregate of claim 6, wherein the aggregate box further comprises a second receiving chamber formed on the lower side of the bottom wall, and a water receiving box for receiving the accumulated water guided out from the diversion hole is arranged in the second receiving chamber.
8. The air-cooled unit according to claim 6, further comprising a compressor, a condenser and a condensing fan disposed in the second receiving chamber, wherein the water receiver is disposed on a top of the compressor.
9. The air-cooled unit according to any one of claims 1 to 5, further comprising a defrosting unit for heating the evaporator during operation, a weighing unit for sensing the current weight of the evaporator, a storage unit for storing female parent data of the weight of the evaporator during non-frosting operation in different operation states, a comparison and judgment unit for comparing the sensed weight of the weighing unit with the female parent data corresponding to the current state stored in the storage unit and judging whether the frosting amount of the evaporator exceeds a preset threshold, and a control unit for controlling the operation of the defrosting unit when the frosting amount of the evaporator exceeds the preset threshold.
10. A display case, wherein the bottom of the display case is provided with the air-cooled unit of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910448917.0A CN112006476B (en) | 2019-05-28 | 2019-05-28 | Air-cooled unit and display cabinet with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910448917.0A CN112006476B (en) | 2019-05-28 | 2019-05-28 | Air-cooled unit and display cabinet with same |
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| Publication Number | Publication Date |
|---|---|
| CN112006476A true CN112006476A (en) | 2020-12-01 |
| CN112006476B CN112006476B (en) | 2024-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910448917.0A Active CN112006476B (en) | 2019-05-28 | 2019-05-28 | Air-cooled unit and display cabinet with same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022042073A1 (en) * | 2020-08-31 | 2022-03-03 | 浙江星星冷链集成股份有限公司 | Display freezer |
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| JP2006046843A (en) * | 2004-08-06 | 2006-02-16 | Fukushima Industries Corp | Flat open showcase |
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| CN106974479A (en) * | 2016-12-27 | 2017-07-25 | 青岛海尔特种电冰柜有限公司 | Vertical display case |
| CN206675335U (en) * | 2016-12-20 | 2017-11-28 | 河南千年冷链设备有限公司 | A kind of refrigerated display case |
| CN206875795U (en) * | 2017-07-03 | 2018-01-12 | 宣城市艺雪制冷设备有限公司 | A kind of vertical refrigerated display case with evaporation humidification air channel |
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2019
- 2019-05-28 CN CN201910448917.0A patent/CN112006476B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003002030A (en) * | 2001-06-22 | 2003-01-08 | Calsonic Kansei Corp | Air conditioner for vehicle |
| ES1054946U (en) * | 2003-06-09 | 2003-09-01 | Construcciones Frigorificas Cr | Refrigerating display case for covers and / or improved spikes. (Machine-translation by Google Translate, not legally binding) |
| JP2006046843A (en) * | 2004-08-06 | 2006-02-16 | Fukushima Industries Corp | Flat open showcase |
| JP2008122060A (en) * | 2006-10-18 | 2008-05-29 | Toshiba Corp | Cooling apparatus |
| EP2832266A1 (en) * | 2013-08-02 | 2015-02-04 | Epta S.p.A. | Method of controlling a horizontal refrigerated display cabinet and horizontal refrigerated display cabinet |
| CN206675335U (en) * | 2016-12-20 | 2017-11-28 | 河南千年冷链设备有限公司 | A kind of refrigerated display case |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2022042073A1 (en) * | 2020-08-31 | 2022-03-03 | 浙江星星冷链集成股份有限公司 | Display freezer |
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| CN112006476B (en) | 2024-02-27 |
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Country or region after: China Address after: 266000 Haier Industrial Park, Qingdao Economic and Technological Development Zone, Shandong Province Applicant after: QINGDAO HAIER SPECIAL FREEZER Co.,Ltd. Applicant after: Haier Zhijia Co.,Ltd. Address before: 266000 Haier Industrial Park, Qingdao Economic and Technological Development Zone, Shandong Province Applicant before: QINGDAO HAIER SPECIAL FREEZER Co.,Ltd. Country or region before: China Applicant before: QINGDAO HAIER JOINT STOCK Co.,Ltd. |
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