CN202853236U - Air cooling system for automatic defrosting by condenser heat - Google Patents
Air cooling system for automatic defrosting by condenser heat Download PDFInfo
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- CN202853236U CN202853236U CN 201220601889 CN201220601889U CN202853236U CN 202853236 U CN202853236 U CN 202853236U CN 201220601889 CN201220601889 CN 201220601889 CN 201220601889 U CN201220601889 U CN 201220601889U CN 202853236 U CN202853236 U CN 202853236U
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Abstract
The utility model discloses an air cooling system for automatic defrosting by condenser heat. The air cooling system comprises a compressor, reversing valves, condensers, a filter, liquid accumulators, capillary tubes and evaporators, wherein the condensers comprise a main condenser and an auxiliary condenser, the evaporators comprise an auxiliary evaporator, a freezing evaporator and a refrigeration evaporator; the auxiliary condenser and the freezing evaporator are placed in a freezing chamber of a refrigerator; and the outer surface of the auxiliary condenser is propped against the outer surface of the freezing evaporator. The air cooling system disclosed by the utility model has the advantages of implementing automatic defrosting of the refrigerator, not influencing the normal refrigeration of a refrigerating chamber during defrosting, being convenient for users, and improving the use efficiency of the refrigerator simultaneously.
Description
Technical field
The utility model relates to a kind of air cooling system that utilizes the hot automatic defrosting of condenser.
Background technology
Household electric refrigerator can be divided into direct-cooled and air-cooled according to refrigeration modes.Wind cooling refrigerator adopts the electrical heating defrost basically at present, this mode not only consumes the energy consumption that more electric energy has increased complete machine, there is the risk that lost efficacy in electric heater as component of high voltage electrical apparatus itself on the other hand, the higher hidden danger that also exists on the safety of heater table surface temperature in addition can affect temperature and the fresh-keeping effect of food preservation of each chamber simultaneously.
The utility model content
The utility model is the weak point that exists in the above-mentioned prior art for avoiding, and a kind of air cooling system that utilizes the hot automatic defrosting of condenser is provided, with the automatic defrosting of realizing air cooling system and improve defrost efficient.
The utility model be the technical solution problem by the following technical solutions.
Utilize the air cooling system of the hot automatic defrosting of condenser, comprise compressor, reversal valve, condenser, filter, reservoir, capillary and evaporimeter; Described condenser comprises main condenser and secondary condenser, and described evaporimeter comprises secondary evaporimeter, refrigerating evaporator and refrigeration evaporator; Described secondary condenser and described refrigerating evaporator all are arranged within the refrigerating chamber of refrigerator and the outer surface of described secondary condenser and the mutual butt of outer surface of described refrigerating evaporator.
The design feature of the air cooling system of the hot automatic defrosting of condenser of utilizing of the present utility model also is:
Such as Fig. 1, described reversal valve comprises the first reversal valve and the second reversal valve; Described reservoir comprises the first reservoir and the second reservoir; Described capillary comprises the first capillary and the second capillary; The output of described compressor is connected with the input of described the first reversal valve; The first output terminals A of described the first reversal valve is connected with the input of main condenser, and the second output B of described the first reversal valve is connected with the input of secondary condenser; After being connected with the output of described secondary condenser, the output of described main condenser is connected with the input of described filter; The output of described filter is connected with the input of described the second reversal valve; The first output C of described the second reversal valve is connected with the first input capillaceous, and the second output D of described the second reversal valve is connected with the second input capillaceous; The described first output capillaceous is connected with the input of refrigerating evaporator with described the second reservoir by refrigeration evaporator successively; The described second output capillaceous is connected with the input of the first reservoir with described the second reservoir by secondary evaporimeter successively; The output of described the second reservoir is connected with the input of described compressor.
Such as Fig. 2, described reversal valve comprises the first reversal valve, the second reversal valve and the 3rd reversal valve; Described reservoir comprises the first reservoir and the second reservoir; Described capillary comprises the first capillary, the second capillary and three capillary; The output of described compressor is connected with the input of described the first reversal valve; The first output E of described the first reversal valve is connected with the input of main condenser, and the second output F of described the first reversal valve is connected with the input of secondary condenser; After being connected with the output of described secondary condenser, the output of described main condenser is connected with the input of described filter; The output of described filter is connected with the input of described the second reversal valve; The first output G of described the second reversal valve is connected with the input of the 3rd reversal valve, and the second output H of described the second reversal valve is connected with the input of three capillary; The first output I of described the 3rd reversal valve is connected with the first input capillaceous, and the second output J of described the 3rd reversal valve is connected with the second input capillaceous; The described first output capillaceous is connected between described refrigerating evaporator and the refrigeration evaporator, and is connected by the input of refrigerating evaporator with described the second reservoir; The described second output capillaceous is connected with the input of refrigerating evaporator with described the second reservoir by refrigeration evaporator successively; The output of described three capillary is connected with the input of the first reservoir with described the second reservoir by secondary evaporimeter successively; The output of described the second reservoir is connected with the input of described compressor.
Compared with the prior art, the utility model beneficial effect is embodied in:
1) air cooling system of the present utility model uses the heat of secondary condenser pipe to realize automatic defrosting.Because what adopt is that refrigeration system is switched, compressor operating, freezing compartment's secondary condenser are realized the heat radiation defrost by the refrigerant heat exchange, because the defrost area is larger, the defrost temperature is even, and heating and temperature rise are not high to guarantee freezing compartment's defrost security without concentrating.
2) air cooling system of the present utility model is used in when realizing freezing compartment's automatic defrosting, can guarantee to refrigerate or the normal operation of other chambers.When refrigeration system switches to the defrost loop.Because still charged work of refrigerator complete machine, when compressor operating, freezing compartment's secondary condenser is realized the heat radiation defrost by the refrigerant heat exchange, secondary evaporimeter is realized throttling, refrigeration by the capillary in defrost loop, provide cold to refrigerating chamber, the food storage of assurance refrigerating chamber is not subjected to the impact of freezing compartment's defrost.
3) wind cooling refrigerator of the present utility model, although when defrost and normal refrigeration, there is the switching of refrigeration system, the corresponding variation occurs in internal volume, but all design the reservoir that is fit to specification by end and the refrigeration evaporator end at secondary evaporimeter, and the Optimized Matching that passes through each heat exchanger area, can guarantee the reliability of system in two loop switch processes, not affect the normal refrigeration performance of compressor and complete machine.
Automatic defrosting in the actual use procedure of user improves defrost efficient by switching in of system simultaneously under the prerequisite that guarantees the defrost security.This utility model can guarantee that also refrigerator does not have a power failure, and during freezing compartment's defrost, refrigeration or other chambers still work, and do not affect the normal storage of other chamber foods, improves the service efficiency of refrigerator when being user-friendly to.
The air cooling system that utilizes the hot automatic defrosting of condenser of the present utility model does not affect the normal refrigeration of refrigerating chamber when having the automatic defrosting that can realize refrigerator, defrost, improves the advantages such as service efficiency of refrigerator when being user-friendly to.
Description of drawings
Fig. 1 is the structural representation that utilizes the air cooling system of the hot automatic defrosting of condenser of the present utility model.
Fig. 2 is the schematic diagram that utilizes the air cooling system of the hot automatic defrosting of condenser of the present utility model.
Fig. 3 is the secondary condenser of the air cooling system that utilizes the hot automatic defrosting of condenser of the present utility model and the structural representation of refrigerating evaporator.
Label in accompanying drawing 1～accompanying drawing 3: 1 compressor, 2 filters, 3 main condensers, 4 secondary condensers, 5 secondary evaporimeters, 6 refrigerating evaporators, 7 refrigeration evaporators, 8 first reversal valves, 9 second reversal valves, 10 the 3rd reversal valves, 11 first reservoirs, 12 second reservoirs, 13 first capillaries, 14 second capillaries, 15 three capillaries.
Below pass through the specific embodiment, and the utility model is described in further detail by reference to the accompanying drawings.
The specific embodiment
Referring to accompanying drawing 1～accompanying drawing 3, utilize the air cooling system of the hot automatic defrosting of condenser, comprise compressor 1, reversal valve, condenser, filter 2, reservoir, capillary and evaporimeter; Described condenser comprises main condenser 3 and secondary condenser 4, and described evaporimeter comprises secondary evaporimeter 5, refrigerating evaporator 6 and refrigeration evaporator 7; Described secondary condenser 4 and described refrigerating evaporator 6 all are arranged within the refrigerating chamber of refrigerator and the outer surface of described secondary condenser 4 and the mutual butt of outer surface of described refrigerating evaporator 6.Design by refrigeration system realizes the switching of internal system, utilizes the heat of condenser coil that refrigerating evaporator is carried out defrost at wind cooling refrigerator, simultaneously refrigerating chamber and other chambers is replenished cold,, not only safe and reliable but also energy-conserving and environment-protective.A design secondary condenser, a secondary evaporimeter and a plurality of reversal valve in the refrigerator of double evaporators, reversal valve adopts the two-bit triplet reversal valve, by computer board control reversal valve, two valves synchronous working, thereby realize the switching of refrigeration system, when compressor operating, pass through the heat exchange of secondary condenser to realize the automatic defrosting of freezing compartment.
As shown in Figure 3, secondary condenser and refrigerating evaporator twine mutually near arranging, and the surface of the two connects, so that the heat of secondary condenser can pass to refrigerating evaporator fast, to realize quick defrost.
As shown in Figure 1, described reversal valve comprises the first reversal valve 8 and the second reversal valve 9; Described reservoir comprises the first reservoir 11 and the second reservoir 12; Described capillary comprises the first capillary 13 and the second capillary 14; The output of described compressor 1 is connected with the input of described the first reversal valve 8; The first output terminals A of described the first reversal valve 8 is connected with the input of main condenser 3, and the second output B of described the first reversal valve 8 is connected with the input of secondary condenser 4; After being connected, the output of the output of described main condenser 3 and described secondary condenser 4 is connected with the input of described filter 2; The output of described filter 2 is connected with the input of described the second reversal valve 9; The first output C of described the second reversal valve 9 is connected with the input of the first capillary 13, and the second output D of described the second reversal valve 9 is connected with the input of the second capillary 14; The output of described the first capillary 13 is connected with the input of refrigerating evaporator 6 with described the second reservoir 12 by refrigeration evaporator 7 successively; The output of described the second capillary 14 is connected with the input of described the second reservoir 12 with the first reservoir 11 by secondary evaporimeter 5 successively; The output of described the second reservoir 12 is connected with the input of described compressor 1.The first reversal valve is set between compressor and main condenser, and secondary condenser is that coiled structure and refrigerating chamber evaporator fin design together.Secondary condenser is mainly the snake bend structure, mainly is arranged in the position of refrigerating evaporator fin surface or easy frosting.Freezer evaporator fin surface fluting is with the fixed joint condenser coil.Between compressor and two condensers the first reversal valve is set, in normal refrigerating circuit the second reversal valve is set between capillary and filter.Two reversal valve unifications are controlled by computerized version.When refrigerator normally freezed, two reversal valves were normal open state, and refrigeration evaporator and refrigerating evaporator are refrigerating state.When needs carried out defrost to freezing compartment, two reversal valves switched simultaneously, and refrigerating circuit switches to the defrost loop, and when refrigerating chamber secondary condenser heat radiation work realized defrost during compressor operating, secondary evaporimeter replenished cold for refrigeration.
As shown in Figure 2, described reversal valve comprises the first reversal valve 8, the second reversal valve 9 and the 3rd reversal valve 10; Described reservoir comprises the first reservoir 11 and the second reservoir 12; Described capillary comprises the first capillary 13, the second capillary 14 and three capillary 15; The output of described compressor 1 is connected with the input of described the first reversal valve 8; The first output E of described the first reversal valve 8 is connected with the input of main condenser 3, and the second output F of described the first reversal valve 8 is connected with the input of secondary condenser 4; After being connected, the output of the output of described main condenser 3 and described secondary condenser 4 is connected with the input of described filter 2; The output of described filter 2 is connected with the input of described the second reversal valve 9; The first output G of described the second reversal valve 9 is connected with the input of the 3rd reversal valve 10, and the second output H of described the second reversal valve 9 is connected with the input of three capillary 15; The first output I of described the 3rd reversal valve 10 is connected with the input of the first capillary 13, and the second output J of described the 3rd reversal valve 10 is connected with the input of the second capillary 14; The output of described the first capillary 13 is connected between described refrigerating evaporator 6 and the refrigeration evaporator 7, and is connected by the input of refrigerating evaporator 6 with described the second reservoir 12; The output of described the second capillary 14 is connected with the input of refrigerating evaporator 6 with described the second reservoir 12 by refrigeration evaporator 7 successively; The output of described three capillary 15 is connected with the input of described the second reservoir 12 with the first reservoir 11 by secondary evaporimeter 5 successively; The output of described the second reservoir 12 is connected with the input of described compressor 1.Secondary condenser is the coiled structure, with the freezing evaporator designs of refrigerating chamber fin together, be mainly the snake bend structure, mainly be arranged in refrigerating evaporator fin surface or the easy position of frosting.Freezer evaporator fin surface fluting is with the fixed joint condenser coil.In normal refrigerating circuit a two-bit triplet reversal valve is set between filter and capillary.Three reversal valve unifications are controlled by computer board.When refrigerator normally freezed, three reversal valves were normal open state, and refrigeration evaporator and refrigerating evaporator are refrigerating state.When needs carried out defrost to freezing compartment, three reversal valves switched simultaneously, and refrigerating circuit switches to the defrost loop, and when refrigerating chamber secondary condenser heat radiation work realized defrost during compressor operating, secondary evaporimeter replenished cold to refrigerating chamber and other chambers.
As shown in Figure 1, when the normal refrigeration demand of refrigerator, the C end conducting of the A of the first reversal valve end and the second reversal valve, the D end cut-off of the B end of the first reversal valve and the second reversal valve.When compressor operating, cold-producing medium normally dispels the heat by main condenser, and system is by the first capillary-compensated, and refrigeration evaporator, refrigerating evaporator all normally freeze.
Refrigerant flow direction is: one tunnel flow through successively compressor, the first reversal valve, main condenser, filter, the second reversal valve, the first capillary, refrigeration evaporator, refrigerating evaporator and the second reservoir got back to compressor, forms cooling cycle system.System dispels the heat by main condenser, the first capillary-compensated, and refrigeration evaporator and refrigerating evaporator freeze.Because the D end cut-off of the B of the first reversal valve end and the second reversal valve is not so that the second capillary and secondary condenser participate in this kind of refrigeration cycle work.
When freezer compartment of refrigerator needs defrost to process, by computer board control, the at this moment D end conducting of the B of the first reversal valve end and the second reversal valve, the A end of the first reversal valve and the C end of the second reversal valve end.When compressor operating, cold-producing medium dispels the heat by secondary condenser, and system is by the second capillary-compensated, and secondary evaporimeter freezes.
Refrigerant flow direction is: compressed machine, the first reversal valve, secondary condenser, filter, the second reversal valve, the second capillary, secondary evaporimeter, the first reservoir and the second reservoir are got back to compressor, form cooling cycle system.System dispels the heat by secondary condenser, the second capillary-compensated, and secondary evaporimeter freezes.Because the C end cut-off of the A of the first reversal valve end and the second reversal valve, so that the first capillary, refrigeration evaporator, refrigerating evaporator do not participate in this kind of refrigeration cycle work.
As shown in Figure 2, when the normal refrigeration demand of refrigerator, the G end conducting of the E of the first reversal valve end and the second reversal valve, the H end cut-off of the F end of the first reversal valve and the second reversal valve.When compressor operating, cold-producing medium normally dispels the heat by main condenser, and system is by the first capillary or the second capillary-compensated, and refrigerating evaporator, refrigeration evaporator all normally freeze according to demand.
Refrigerant flow direction is: compressed machine, the first reversal valve, main condenser, filter, the second reversal valve, the first capillary or the second capillary, refrigeration evaporator, refrigerating evaporator and the second reservoir are got back to compressor.At this moment, system dispels the heat by main condenser, the first capillary or the second capillary-compensated, refrigerating evaporator and/or refrigeration evaporator refrigeration.Because the H end cut-off of the F of the first reversal valve end and the second reversal valve is not so that three capillary and secondary condenser participate in this kind of refrigeration cycle work.
When freezer compartment of refrigerator needs defrost to process, by computer board control, the H end conducting of the F end of the first reversal valve and the second reversal valve, the G end cut-off of the E end of the first reversal valve and the second reversal valve.When compressor operating, cold-producing medium dispels the heat by secondary condenser, and system is by the three capillary throttling, and secondary evaporimeter freezes.Because the outer surface of secondary condenser and refrigerating evaporator connects, heat transmission can occur between the two, secondary condenser melts after with the heating of the frost layer on the refrigerating evaporator, realizes the automatic defrosting of refrigeration system.Simultaneously, provide refrigeration by secondary evaporimeter for refrigerating chamber, do not affect normal refrigerating function.Refrigerant flow direction is: compressed machine, the first reversal valve, secondary condenser, filter, the second reversal valve, three capillary, secondary evaporimeter, the first reservoir and the second reservoir are got back to compressor.
System is by secondary condenser heat radiation, capillary-compensated, and secondary evaporimeter freezes.Because secondary condenser is installed in freezing wire-tube evaporator relevant position, this moment, refrigerating evaporator one end was cut-off state, cold-producing medium nothing in refrigerating evaporator flows, effectively heat exchange of nothing, refrigerating evaporator does not freeze, and the efficiently radiates heat by secondary condenser carries out automation to the frost layer of refrigerating evaporator relevant position and removes.Pass through simultaneously throttling capillaceous, by secondary evaporimeter refrigerator chamber and other chambers are replenished cold.After finishing, defrost have computer board control to switch to normal refrigerating circuit.
For guaranteeing the reliability of this refrigeration system in normal refrigerating circuit and defrost loop switch process, avoid producing the fault of muffler frosting or compressor air suction valve block liquid hammer, all be designed with the reservoir that is fit to specification at the secondary evaporimeter end of this refrigeration system and refrigerating evaporator end, and realize the Proper Match of refrigerating capacity under each chamber of complete machine, each duty by optimizing each heat exchanger area.
Claims (3)
1. utilize the air cooling system of the hot automatic defrosting of condenser, it is characterized in that, comprise compressor (1), reversal valve, condenser, filter (2), reservoir, capillary and evaporimeter; Described condenser comprises main condenser (3) and secondary condenser (4), and described evaporimeter comprises secondary evaporimeter (5), refrigerating evaporator (6) and refrigeration evaporator (7); Described secondary condenser (4) and described refrigerating evaporator (6) all are arranged within the refrigerating chamber of refrigerator and the outer surface of described secondary condenser (4) and the mutual butt of outer surface of described refrigerating evaporator (6).
2. the air cooling system that utilizes the hot automatic defrosting of condenser according to claim 1 is characterized in that, described reversal valve comprises the first reversal valve (8) and the second reversal valve (9); Described reservoir comprises the first reservoir (11) and the second reservoir (12); Described capillary comprises the first capillary (13) and the second capillary (14); The output of described compressor (1) is connected with the input of described the first reversal valve (8); The first output terminals A of described the first reversal valve (8) is connected with the input of main condenser (3), and the second output B of described the first reversal valve (8) is connected with the input of secondary condenser (4); After being connected, the output of the output of described main condenser (3) and described secondary condenser (4) is connected with the input of described filter (2); The output of described filter (2) is connected with the input of described the second reversal valve (9); The first output C of described the second reversal valve (9) is connected with the input of the first capillary (13), and the second output D of described the second reversal valve (9) is connected with the input of the second capillary (14); The output of described the first capillary (13) is connected with the input of refrigerating evaporator (6) with described the second reservoir (12) by refrigeration evaporator (7) successively; The output of described the second capillary (14) is connected with the input of the first reservoir (11) with described the second reservoir (12) by secondary evaporimeter (5) successively; The output of described the second reservoir (12) is connected with the input of described compressor (1).
3. the air cooling system that utilizes the hot automatic defrosting of condenser according to claim 1 is characterized in that, described reversal valve comprises the first reversal valve (8), the second reversal valve (9) and the 3rd reversal valve (10); Described reservoir comprises the first reservoir (11) and the second reservoir (12); Described capillary comprises the first capillary (13), the second capillary (14) and three capillary (15); The output of described compressor (1) is connected with the input of described the first reversal valve (8); The first output E of described the first reversal valve (8) is connected with the input of main condenser (3), and the second output F of described the first reversal valve (8) is connected with the input of secondary condenser (4); After being connected, the output of the output of described main condenser (3) and described secondary condenser (4) is connected with the input of described filter (2); The output of described filter (2) is connected with the input of described the second reversal valve (9); The first output G of described the second reversal valve (9) is connected with the input of the 3rd reversal valve (10), and the second output H of described the second reversal valve (9) is connected with the input of three capillary (15); The first output I of described the 3rd reversal valve (10) is connected with the input of the first capillary (13), and the second output J of described the 3rd reversal valve (10) is connected with the input of the second capillary (14); The output of described the first capillary (13) is connected between described refrigerating evaporator (6) and the refrigeration evaporator (7), and is connected by the input of refrigerating evaporator (6) with described the second reservoir (12); The output of described the second capillary (14) is connected with the input of refrigerating evaporator (6) with described the second reservoir (12) by refrigeration evaporator (7) successively; The output of described three capillary (15) is connected with the input of the first reservoir (11) with described the second reservoir (12) by secondary evaporimeter (5) successively; The output of described the second reservoir (12) is connected with the input of described compressor (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220601889 CN202853236U (en) | 2012-11-14 | 2012-11-14 | Air cooling system for automatic defrosting by condenser heat |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220601889 CN202853236U (en) | 2012-11-14 | 2012-11-14 | Air cooling system for automatic defrosting by condenser heat |
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Cited By (9)
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| CN104121747A (en) * | 2013-04-25 | 2014-10-29 | 海尔集团公司 | Refrigerating system and refrigerator provided with same |
| CN105588396A (en) * | 2016-02-02 | 2016-05-18 | 河南新飞电器有限公司 | Multi-cycle air-cooling refrigerator defrosting refrigeration system and control method thereof |
| CN105605839A (en) * | 2015-12-30 | 2016-05-25 | 青岛海尔股份有限公司 | Refrigerator and defrosting system thereof |
| CN105716355A (en) * | 2016-02-03 | 2016-06-29 | 西安交通大学 | Auxiliary defrosting device and method for air cooling refrigerator |
| CN106091503A (en) * | 2016-05-30 | 2016-11-09 | 合肥华凌股份有限公司 | A kind of automatic defrosting system and refrigeration plant |
| CN108592498A (en) * | 2018-05-10 | 2018-09-28 | 西安交通大学 | For parallel circulating system of the dual temperature refrigerator with hot gas defrosting and cold recovery |
| CN115540404A (en) * | 2021-06-29 | 2022-12-30 | 青岛海尔电冰箱有限公司 | Refrigerating system for refrigerating and freezing device and refrigerating and freezing device |
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| CN104121747A (en) * | 2013-04-25 | 2014-10-29 | 海尔集团公司 | Refrigerating system and refrigerator provided with same |
| CN105605839A (en) * | 2015-12-30 | 2016-05-25 | 青岛海尔股份有限公司 | Refrigerator and defrosting system thereof |
| CN105588396A (en) * | 2016-02-02 | 2016-05-18 | 河南新飞电器有限公司 | Multi-cycle air-cooling refrigerator defrosting refrigeration system and control method thereof |
| CN105716355A (en) * | 2016-02-03 | 2016-06-29 | 西安交通大学 | Auxiliary defrosting device and method for air cooling refrigerator |
| CN106091503A (en) * | 2016-05-30 | 2016-11-09 | 合肥华凌股份有限公司 | A kind of automatic defrosting system and refrigeration plant |
| CN106091503B (en) * | 2016-05-30 | 2018-05-11 | 合肥华凌股份有限公司 | A kind of automatic defrosting system and refrigeration plant |
| CN108592498A (en) * | 2018-05-10 | 2018-09-28 | 西安交通大学 | For parallel circulating system of the dual temperature refrigerator with hot gas defrosting and cold recovery |
| CN108592498B (en) * | 2018-05-10 | 2020-02-07 | 西安交通大学 | Parallel circulating system with hot air defrosting and cold energy recovery for double-temperature refrigerator |
| CN115540404A (en) * | 2021-06-29 | 2022-12-30 | 青岛海尔电冰箱有限公司 | Refrigerating system for refrigerating and freezing device and refrigerating and freezing device |
| CN115540407A (en) * | 2021-06-29 | 2022-12-30 | 青岛海尔电冰箱有限公司 | Refrigerating system for refrigerating and freezing device and refrigerating and freezing device |
| WO2023273705A1 (en) * | 2021-06-29 | 2023-01-05 | 青岛海尔电冰箱有限公司 | Refrigeration system for refrigerating and freezing device, and refrigerating and freezing device |
| WO2023273709A1 (en) * | 2021-06-29 | 2023-01-05 | 青岛海尔电冰箱有限公司 | Refrigerating system for refrigerating and freezing device and refrigerating and freezing device |
| WO2023029777A1 (en) * | 2021-09-02 | 2023-03-09 | 青岛海尔电冰箱有限公司 | Refrigeration system for refrigerating and freezing device, and refrigerating and freezing device having same |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 230601 Hefei economic and Technological Development Zone, Anhui Road, No. 4288 Patentee after: Hefei Kinghome Electrical Appliance Co., Ltd. Address before: 230601 No. 35, Taoyuan Road, Hefei economic and Technological Development Zone, Anhui, China Patentee before: Hefei Kinghome Electrical Appliance Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20151114 |
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| EXPY | Termination of patent right or utility model |