CN102313394A - Refrigerator and refrigerating system thereof - Google Patents
Refrigerator and refrigerating system thereof Download PDFInfo
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- CN102313394A CN102313394A CN201110299561A CN201110299561A CN102313394A CN 102313394 A CN102313394 A CN 102313394A CN 201110299561 A CN201110299561 A CN 201110299561A CN 201110299561 A CN201110299561 A CN 201110299561A CN 102313394 A CN102313394 A CN 102313394A
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Abstract
The invention provides a refrigerator and a refrigerating system thereof. The refrigerating system comprises a compressor, a primary condenser, a secondary condenser, a capillary tube, a freezing evaporator, a cold-storage evaporator, a variable-temperature evaporator and a switching unit; the switching unit is used for carrying out switching between a variable-temperature chamber defrosting mode and a normal refrigerating mode; the switching unit is provided with a first inlet, a second inlet, a first outlet, a second outlet and a third outlet; the first inlet is connected with an outlet of the compressor; the first outlet is connected with an inlet of the secondary condenser, wherein in the variable-temperature chamber defrosting mode, the first inlet is communicated with the first outlet; the second inlet is communicated with the second outlet; and further, the third outlet is closed. According to the refrigerating system of the refrigerator provided by the embodiment of the invention, after the secondary condenser is opened, the temperature of a refrigerant can be decreased while a variable-temperature chamber evaporator is defrosted; the refrigeration efficiency is improved; and the energy consumption is utilized adequately.
Description
Technical field
The present invention relates to the refrigerator refrigeration technology field, particularly relate to a kind of refrigerator and refrigeration system thereof
Background technology
Temperature-changing chamber becomes the standard configuration of refrigerator gradually with its versatility, and temperature-changing chamber can be realized the large span alternating temperature yet this is, frosting appears in its evaporimeter more easily, thereby influences the temperature-changing chamber refrigeration.
Adopt mostly in the existing refrigerator and set up an electric heater unit; So that the alternating temperature evaporimeter is carried out defrost; But adopt the effect of above-mentioned defrost mode undesirable, defrost is inhomogeneous, and electric heater unit also can cause potential safety hazard and the extra energy consumptions that increase refrigerator such as fire in addition.
Summary of the invention
The present invention is intended to one of solve the problems of the technologies described above at least.
For this reason, one object of the present invention is to propose a kind of refrigerator refrigeration system that utilizes condenser to the defrost of alternating temperature evaporimeter.
Another object of the present invention is to propose a kind of refrigerator with above-mentioned refrigeration system.
The refrigeration system of the refrigerator of embodiment comprises: compressor according to an aspect of the present invention; Main condenser and secondary condenser, said main condenser links to each other with the outlet of said compressor respectively with the inlet of secondary condenser parallel connection and said main condenser and secondary condenser; Capillary, said capillary comprise first capillary and second capillary; Refrigerating evaporator, refrigeration evaporator and alternating temperature evaporimeter; Said first capillary links to each other with said first outlet capillaceous with the inlet of said refrigeration evaporator polyphone and said refrigeration evaporator; Said second capillary links to each other with said second outlet capillaceous with the inlet of said alternating temperature evaporimeter polyphone and said alternating temperature evaporimeter; The outlet of the outlet of said refrigeration evaporator and said alternating temperature evaporimeter links to each other with the inlet of said refrigerating evaporator respectively, and the outlet of said refrigerating evaporator links to each other with the inlet of said compressor; And switch unit; Said switch unit is used between temperature-changing chamber defrosting mode and normal refrigeration mode, switching; Said switch unit has first and second inlet and first to the 3rd outlets; Said first inlet links to each other with the outlet of said compressor; Said first outlet links to each other with the inlet of said secondary condenser, and said second inlet links to each other with the outlet of said main condenser and secondary condenser respectively; Said second outlet links to each other with said first inlet capillaceous; Said the 3rd outlet links to each other with said second inlet capillaceous, wherein between said first inlet under the said temperature-changing chamber defrosting mode and said first outlet, connects, connects and said the 3rd port closing between said second inlet and said second outlet, and disconnection and said second enters the mouth and exports with said second respectively and the said the 3rd be communicated with between exporting or break off between said first inlet under the normal refrigeration mode and said first outlet.
According to the refrigerator refrigeration system of the embodiment of the invention, after secondary condenser is opened, can be in to the defrost of temperature-changing chamber evaporimeter cooling has improved refrigerating efficiency to cold-producing medium, made full use of energy consumption, kill two birds with one stone.In addition, secondary condenser has substituted the auxiliary defrosting device of electric heating, not only makes the defrost effect more evenly and stopped fire safety evaluating hidden danger.The refrigerator refrigeration system of the embodiment of the invention can freely switch between secondary condenser opens and closes through switch unit, can also select to open evaporimeter separately or all open evaporimeter according to the refrigeration needs simultaneously, therefore can effectively practice thrift energy consumption of refrigerator.The refrigerator refrigeration system of the embodiment of the invention is realized above-mentioned whole handoff functionality through switch unit, and the structure of therefore not only having simplified refrigeration system can also reduce the manufacturing cost of refrigerator.
In addition, refrigerator refrigeration system according to the above embodiment of the present invention can also have following additional technical feature:
According to one embodiment of present invention, said main condenser comprises first and second condensers of mutual series connection.
According to one embodiment of present invention,
Be provided with anti-condensation device between said first condenser and said second condenser.
According to one embodiment of present invention,
Also comprise device for drying and filtering, the inlet of said device for drying and filtering links to each other with the outlet of said second condenser and the outlet of said secondary condenser respectively, and the outlet of said device for drying and filtering links to each other with said second inlet.
According to one embodiment of present invention, said switch unit is a magnetic valve.
The refrigerator of embodiment according to a further aspect of the invention, comprising: casing is limited with refrigerating chamber, refrigerating chamber and temperature-changing chamber in the said casing; And refrigeration system; Said refrigeration system is the described refrigerator refrigeration system of above-mentioned each embodiment; The refrigerating evaporator of wherein said refrigeration system is used for said refrigerating chamber refrigeration; Refrigeration evaporator is used for said refrigerating chamber refrigeration, and the alternating temperature evaporimeter is used for how said temperature-changing chamber refrigeration, and said secondary condenser is used for the defrost of said temperature-changing chamber evaporimeter.
According to the refrigerator of the embodiment of the invention, after secondary condenser is opened, can be in to the defrost of temperature-changing chamber evaporimeter cooling has improved refrigerating efficiency to cold-producing medium, made full use of energy consumption, kill two birds with one stone.In addition, secondary condenser has substituted the auxiliary defrosting device of electric heating, not only makes the defrost effect more evenly and stopped fire safety evaluating hidden danger.The refrigerator of the embodiment of the invention; Can, secondary condenser freely switch between opening and closing through switch unit; Simultaneously can also be (for example according to the refrigeration needs; Refrigerating chamber, temperature-changing chamber or freezing indoor temperature are lower than preset temperature separately) select to open evaporimeter separately or all open evaporimeter, therefore can effectively practice thrift energy consumption of refrigerator.The refrigerator of the embodiment of the invention is realized above-mentioned whole handoff functionality through switch unit, and the structure of therefore not only having simplified refrigeration system can also reduce the manufacturing cost of refrigerator.
In addition, refrigerator according to the above embodiment of the present invention can also have following additional technical feature:
According to one embodiment of present invention, said alternating temperature evaporimeter and said secondary condenser are located in the said temperature-changing chamber.
According to one embodiment of present invention, said alternating temperature evaporimeter is located at the case courage back side of said casing, and said secondary condenser contacts with said alternating temperature evaporimeter.
According to one embodiment of present invention, said secondary condenser sticks on the said alternating temperature evaporimeter through adhesive tape.
Additional aspect of the present invention and advantage part in the following description provide, and part will become obviously from the following description, or recognize through practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage obviously with are easily understood becoming the description of embodiment from combining figs, wherein:
Fig. 1 is the sketch map of refrigerator refrigeration system according to an embodiment of the invention;
Fig. 2 is the partial enlarged drawing at A place among Fig. 1;
Fig. 3 is the sketch map of refrigerator refrigeration system in accordance with another embodiment of the present invention; With
Fig. 4 is the cutaway view according to the temperature-changing chamber of embodiment of the invention refrigerator.
The specific embodiment
Describe embodiments of the invention below in detail, the example of said embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Be exemplary through the embodiment that is described with reference to the drawings below, only be used to explain the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention; It will be appreciated that; The orientation of indications such as term " " center ", " vertically ", " laterally ", " on ", D score, " preceding ", " back ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward " or position relation are for based on orientation shown in the drawings or position relation; only be to describe with simplifying for the ease of describing the present invention; rather than the device or the element of indication or hint indication must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.
In addition, term " first ", " second " only are used to describe purpose, and can not be interpreted as indication or hint relative importance.
In description of the invention, need to prove that only if clear and definite regulation and qualification are arranged in addition, term " installation ", " linking to each other ", " connection " should be done broad understanding, for example, can be to be fixedly connected, connect integratedly, also can be to removably connect; Can be mechanical connection or electrical connection, also can be the connection of two element internals; Can be directly to link to each other, also can link to each other indirectly, for those of ordinary skill in the art, can understand the concrete implication of above-mentioned term as the case may be through intermediary.
Followingly refrigerator refrigeration system according to the embodiment of the invention is described with reference to figure 1-3.
Refrigerator refrigeration system according to the embodiment of the invention comprises: compressor 1, main condenser 2, secondary condenser 3, capillary refrigerating evaporator 5, refrigeration evaporator 6, alternating temperature evaporimeter 7 and switch unit 8.
Particularly, shown in Figure 1, main condenser 2 links to each other with the outlet 11 of compressor 1 respectively with 32 with the inlet 202 of secondary condenser 3 parallel connections and main condenser 2 and secondary condenser 3.
Capillary comprises first capillary 41 and second capillary 42.First capillary 41 links to each other with the outlet 411 of first capillary 41 with the inlet 62 of refrigeration evaporator 6 polyphones and refrigeration evaporator 6; Second capillary 42 links to each other with the outlet 421 of second capillary 42 with the inlet 72 of alternating temperature evaporimeter 7 polyphones and alternating temperature evaporimeter 7; The outlet 61 of refrigeration evaporator 6 links to each other with the inlet 52 of refrigerating evaporator 5 respectively with the outlet 71 of alternating temperature evaporimeter 7, and the outlet 51 of refrigerating evaporator 5 links to each other with the inlet 12 of compressor 1.
As illustrated in fig. 1 and 2, switch unit 8 has first inlet, 81, first outlet, 82, second inlet, 83, second outlet the 84 and the 3rd outlet 85.First inlet 81 links to each other with the outlet 11 of compressor 1, and first outlet 82 links to each other with the inlet 32 of secondary condenser 3, and second enters the mouth 83 links to each other with 31 with the outlet 201 of main condenser 2 and secondary condenser 3 respectively.Second outlet 84 links to each other with the inlet 412 of first capillary 41, and the 3rd exports 85 links to each other with the inlet 422 of second capillary 42.
Through adopting secondary condenser 3 and temperature-changing chamber evaporimeter 8 contacted modes, under above-mentioned temperature-changing chamber defrosting mode, secondary condenser 3 is opened and externally heat release, and therefore the temperature-changing chamber evaporimeter 7 to contact with it carries out defrost.
Refrigerator refrigeration system according to the embodiment of the invention; Under normal refrigeration mode; Break off between 81 and first outlet 82 of first inlet, make secondary condenser 3 close (being that cold-producing medium is through secondary condenser 3), this moment second inlet 83 respectively be communicated with between second outlet the 84 and the 3rd exports 85 or break off.Therefore; Under normal refrigeration mode; Cold-producing medium flows to second inlet 83 of switch unit 8 from the main condenser 2 of flowing through after compressor 1 flows out, and again according to refrigeration needs, selects to export 84, first capillary 41, refrigeration evaporator 6 and refrigerating evaporator 5 through second; Flow back to compressor 1 (promptly second inlet 83 is communicated with second outlet 84, but breaks off with the 3rd outlet 85) at last; Perhaps select through the 3rd outlet 85, second capillary 42, alternating temperature evaporimeter 7 and refrigerating evaporator 5, flow back to compressor 1 (promptly second inlet 83 is communicated with the 3rd outlet 85, but with second export 84 disconnections) at last; Perhaps above-mentioned again two kinds of situation are carried out simultaneously; Cold-producing medium flows out respectively from second outlet the 84 and the 3rd outlet 85; With form first capillary 41 and refrigeration evaporator 6 and second capillary 42 and alternating temperature evaporimeter 7 parallelly connected after again with refrigerating evaporator 5 polyphones, flow back to compressor 1 (promptly second inlet 83 exports the 84 and the 3rd and exports 85 and be communicated with second respectively) at last.
According to the refrigerator refrigeration system of the embodiment of the invention, after secondary condenser 3 is opened, can be in to 8 defrosts of temperature-changing chamber evaporimeter cooling has improved refrigerating efficiency to cold-producing medium, made full use of energy consumption, kill two birds with one stone.In addition, secondary condenser 8 has substituted the auxiliary defrosting device of electric heating, not only makes the defrost effect more evenly and stopped fire safety evaluating hidden danger.The refrigerator refrigeration system of the embodiment of the invention; Can, secondary condenser 3 freely switch between opening and closing through switch unit 8; Can also select to open evaporimeter separately or all open evaporimeter according to the refrigeration needs simultaneously, therefore can effectively practice thrift energy consumption of refrigerator.The refrigerator refrigeration system of the embodiment of the invention is realized above-mentioned whole handoff functionalities through switch unit 8, and the structure of therefore not only having simplified refrigeration system can also reduce the manufacturing cost of refrigerator.
As shown in Figure 3, according to one embodiment of present invention, main condenser 2 comprises first condenser 21 and second condenser 22 of mutual series connection.Set up a condenser like above-mentioned structure and can effectively improve refrigerating efficiency, increase refrigeration.
As shown in Figure 3, according to an example of the present invention, be provided with anti-condensation device 9 between first condenser 21 and second condenser 22, can effectively prevent chamber door and doorframe contact position dewfall through anti-condensation device 9.
According to one embodiment of present invention, refrigeration system also comprises device for drying and filtering 10.The inlet 102 of device for drying and filtering 10 links to each other with the outlet 221 of second condenser 22 and the outlet 31 of secondary condenser 3 respectively, and the outlet 101 of device for drying and filtering 10 links to each other with second inlet 93.At the upper reaches capillaceous device for drying and filtering 10 is set, can contaminant filters such as pressed powder in the cold-producing medium and dirt be fallen, therefore prevent that effectively capillary is blocked.In addition, the moisture content of device for drying and filtering 10 in can also the absorption refrigeration agent is to improve refrigeration.
Since magnetic valve have switch accurately, simple, controllability is strong, long service life and advantage such as cheap, preferably, switch unit 8 adopts magnetic valves.
With reference to figure 4 refrigerator according to the embodiment of the invention is described below.
Refrigerator according to the embodiment of the invention comprises: casing and refrigeration system.
Particularly, be limited with refrigerating chamber, refrigerating chamber (not shown) and temperature-changing chamber 73 in the casing.Refrigeration system is the described refrigerator refrigeration system of above-mentioned each embodiment.The said refrigerating evaporator 5 of refrigeration system is used for the refrigerating chamber refrigeration, and said refrigeration evaporator 6 is used for the refrigerating chamber refrigeration, and said alternating temperature evaporimeter 7 is used for variable greenhouse 73 refrigeration, and said secondary condenser 3 is used for 7 defrosts of temperature-changing chamber evaporimeter.
Refrigerator according to the embodiment of the invention can regularly be opened said secondary condenser 3 so that alternating temperature evaporimeter 7 is carried out defrost through manually controlling said switch unit 8.Perhaps, the frost sensor that said alternating temperature evaporimeter 7 frosting situation are detected realizes that controlling said switch unit 8 automatically opens said good fortune condenser 3 through being set.
According to the refrigerator of the embodiment of the invention, after secondary condenser 3 is opened, can be in to 8 defrosts of temperature-changing chamber evaporimeter cooling has improved refrigerating efficiency to cold-producing medium, made full use of energy consumption, kill two birds with one stone.In addition, secondary condenser 8 has substituted the auxiliary defrosting device of electric heating, not only makes the defrost effect more evenly and stopped fire safety evaluating hidden danger.The refrigerator of the embodiment of the invention; Can, secondary condenser 3 freely switch between opening and closing through switch unit 8; Simultaneously can also be (for example according to the refrigeration needs; Refrigerating chamber, temperature-changing chamber or freezing indoor temperature are lower than preset temperature separately) select to open evaporimeter separately or all open evaporimeter, therefore can effectively practice thrift energy consumption of refrigerator.The refrigerator of the embodiment of the invention is realized above-mentioned whole handoff functionalities through switch unit 8, and the structure of therefore not only having simplified refrigeration system can also reduce the manufacturing cost of refrigerator.
According to one embodiment of present invention, said alternating temperature evaporimeter 7 is located in the temperature-changing chamber 73 with said secondary condenser 3.
According to one embodiment of present invention, said alternating temperature evaporimeter 7 is located at the case courage back side 74 of said casing, and said secondary condenser 3 contacts with said alternating temperature evaporimeter 7, to reach the purpose through 3 pairs of said alternating temperature evaporimeter 7 defrosts of secondary condenser.
Preferably, said secondary condenser 3 sticks on the said alternating temperature evaporimeter 7 through the PE adhesive tape, has so not only guaranteed the steadiness of the two contact, can also make the two contact tightr, further improves the defrost effect.
Other formations of refrigerator according to the above embodiment of the present invention can be that those of ordinary skills are known, repeat no more at this.
In the description of this specification, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means the concrete characteristic, structure, material or the characteristics that combine this embodiment or example to describe and is contained at least one embodiment of the present invention or the example.In this manual, the schematic statement to above-mentioned term not necessarily refers to identical embodiment or example.And concrete characteristic, structure, material or the characteristics of description can combine with suitable manner in any one or more embodiment or example.
Although illustrated and described embodiments of the invention; Those having ordinary skill in the art will appreciate that: under the situation that does not break away from principle of the present invention and aim, can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is limited claim and equivalent thereof.
Claims (9)
1. the refrigeration system of a refrigerator is characterized in that, comprising:
Compressor;
Main condenser and secondary condenser, said main condenser links to each other with the outlet of said compressor respectively with the inlet of secondary condenser parallel connection and said main condenser and secondary condenser;
Capillary, said capillary comprise first capillary and second capillary;
Refrigerating evaporator, refrigeration evaporator and alternating temperature evaporimeter; Said first capillary links to each other with said first outlet capillaceous with the inlet of said refrigeration evaporator polyphone and said refrigeration evaporator; Said second capillary links to each other with said second outlet capillaceous with the inlet of said alternating temperature evaporimeter polyphone and said alternating temperature evaporimeter; The outlet of the outlet of said refrigeration evaporator and said alternating temperature evaporimeter links to each other with the inlet of said refrigerating evaporator respectively, and the outlet of said refrigerating evaporator links to each other with the inlet of said compressor; With
Switch unit; Said switch unit is used between temperature-changing chamber defrosting mode and normal refrigeration mode, switching; Said switch unit has first and second inlet and first to the 3rd outlets; Said first inlet links to each other with the outlet of said compressor; Said first outlet links to each other with the inlet of said secondary condenser, and said second inlet links to each other with the outlet of said main condenser and secondary condenser respectively; Said second outlet links to each other with said first inlet capillaceous; Said the 3rd outlet links to each other with said second inlet capillaceous, wherein between said first inlet under the said temperature-changing chamber defrosting mode and said first outlet, connects, connects and said the 3rd port closing between said second inlet and said second outlet, and disconnection and said second enters the mouth and exports with said second respectively and the said the 3rd be communicated with between exporting or break off between said first inlet under the normal refrigeration mode and said first outlet.
2. the refrigeration system of refrigerator according to claim 1 is characterized in that, said main condenser comprises first and second condensers of mutual series connection.
3. the refrigeration system of refrigerator according to claim 2 is characterized in that, is provided with anti-condensation device between said first condenser and said second condenser.
4. the refrigeration system of refrigerator according to claim 1; It is characterized in that; Also comprise device for drying and filtering, the inlet of said device for drying and filtering links to each other with the outlet of said second condenser and the outlet of said secondary condenser respectively, and the outlet of said device for drying and filtering links to each other with said second inlet.
5. according to the refrigeration system of each described refrigerator among the claim 1-4, it is characterized in that said switch unit is a magnetic valve.
6. a refrigerator is characterized in that, comprising:
Casing is limited with refrigerating chamber, refrigerating chamber and temperature-changing chamber in the said casing; With
Refrigeration system; Said refrigeration system is according to each described refrigerator refrigeration system among the claim 1-5; The refrigerating evaporator of wherein said refrigeration system is used for said refrigerating chamber refrigeration; Refrigeration evaporator is used for said refrigerating chamber refrigeration, and the alternating temperature evaporimeter is used for how said temperature-changing chamber refrigeration, and said secondary condenser is used for the defrost of said temperature-changing chamber evaporimeter.
7. refrigerator according to claim 6 is characterized in that: said alternating temperature evaporimeter and said secondary condenser are located in the said temperature-changing chamber.
8. refrigerator according to claim 7 is characterized in that: said alternating temperature evaporimeter is located at the case courage back side of said casing, and said secondary condenser contacts with said alternating temperature evaporimeter.
9. refrigerator according to claim 8 is characterized in that: said secondary condenser sticks on the said alternating temperature evaporimeter through adhesive tape.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110299561 CN102313394B (en) | 2011-10-08 | 2011-10-08 | Refrigerator and refrigerating system thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110299561 CN102313394B (en) | 2011-10-08 | 2011-10-08 | Refrigerator and refrigerating system thereof |
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| CN102313394A true CN102313394A (en) | 2012-01-11 |
| CN102313394B CN102313394B (en) | 2013-07-03 |
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| CN 201110299561 Active CN102313394B (en) | 2011-10-08 | 2011-10-08 | Refrigerator and refrigerating system thereof |
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Cited By (9)
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| CN102980351A (en) * | 2012-12-28 | 2013-03-20 | 合肥美的荣事达电冰箱有限公司 | Refrigerator and refrigeration system component thereof |
| CN102997477A (en) * | 2012-12-28 | 2013-03-27 | 合肥美的荣事达电冰箱有限公司 | Refrigerator and refrigeration system of refrigerator |
| CN103017392A (en) * | 2013-01-10 | 2013-04-03 | 合肥美的荣事达电冰箱有限公司 | Refrigerator refrigerating system and refrigerator with same |
| CN103335439A (en) * | 2013-07-18 | 2013-10-02 | 合肥美的电冰箱有限公司 | Refrigeration system |
| CN104949371A (en) * | 2015-07-07 | 2015-09-30 | 合肥美的电冰箱有限公司 | Refrigeration system of refrigerator and refrigerator having same |
| CN107560218A (en) * | 2017-09-14 | 2018-01-09 | 广东美的暖通设备有限公司 | Multiple on-line system and its defrosting control method |
| CN110779260A (en) * | 2019-11-26 | 2020-02-11 | 河南新飞制冷器具有限公司 | Three-circulation quick-cooling frost-free refrigerator and continuous operation method thereof |
| CN112824785A (en) * | 2019-11-20 | 2021-05-21 | 青岛海尔电冰箱有限公司 | Control method for air-cooled refrigerator and air-cooled refrigerator |
| CN113932468A (en) * | 2021-02-24 | 2022-01-14 | 海信（山东）冰箱有限公司 | Refrigerator with a door |
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| CN104390382A (en) * | 2014-12-01 | 2015-03-04 | 合肥美的电冰箱有限公司 | Refrigerating system and refrigerator with same |
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| CN107560218B (en) * | 2017-09-14 | 2020-04-10 | 广东美的暖通设备有限公司 | Multi-split air conditioning system and defrosting control method thereof |
| CN112824785A (en) * | 2019-11-20 | 2021-05-21 | 青岛海尔电冰箱有限公司 | Control method for air-cooled refrigerator and air-cooled refrigerator |
| CN112824785B (en) * | 2019-11-20 | 2022-11-22 | 青岛海尔电冰箱有限公司 | Control method for air-cooled refrigerator and air-cooled refrigerator |
| CN110779260A (en) * | 2019-11-26 | 2020-02-11 | 河南新飞制冷器具有限公司 | Three-circulation quick-cooling frost-free refrigerator and continuous operation method thereof |
| CN110779260B (en) * | 2019-11-26 | 2021-03-26 | 河南新飞制冷器具有限公司 | Three-circulation quick-cooling frost-free refrigerator and continuous operation method thereof |
| CN113932468A (en) * | 2021-02-24 | 2022-01-14 | 海信（山东）冰箱有限公司 | Refrigerator with a door |
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Owner name: HEFEI MIDEA REFRIGERATOR CO., LTD. Free format text: FORMER NAME: HEFEI MEDIA RONGSHIDA REFRIGERATOR CO., LTD. |
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Address after: 230601 Hefei Changjiang Road, Anhui, No. 669 Patentee after: Hefei Midea Refrigerator Co., Ltd. Patentee after: Hefei Hualing Co., Ltd. Address before: 230601 Hefei Changjiang Road, Anhui, No. 669 Patentee before: Hefei Media Rongshida Refrigerator Co., Ltd. Patentee before: Hefei Hualing Co., Ltd. |