CN202993403U - Air-conditioning outdoor unit and air-conditioning system with same - Google Patents
Air-conditioning outdoor unit and air-conditioning system with same Download PDFInfo
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- CN202993403U CN202993403U CN201220633885.5U CN201220633885U CN202993403U CN 202993403 U CN202993403 U CN 202993403U CN 201220633885 U CN201220633885 U CN 201220633885U CN 202993403 U CN202993403 U CN 202993403U
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Abstract
The utility model provides an air-conditioning outdoor unit and an air-conditioning system with the same. The air-conditioning outdoor unit comprises a compressor unit, an oil separator, a multi-ported valve, a heat exchanger and a throttling component, the compressor unit is provided with an exhaust pipe and an air-returning pipe, a high-pressure single-pass stop valve for preventing fluids in the exhaust pipe from flowing back is arranged on a pipeline between the multi-ported valve and the exhaust pipe of the compressor unit, and a low-pressure single-pass stop valve for preventing fluids in the air-returning pipe from flowing back is arranged on a pipeline between the multi-ported valve and the air-returning pipe of the compressor unit. The air-conditioning system comprises an air-conditioning indoor unit and the air-conditioning outdoor unit. By the aid of the air-conditioning outdoor unit and the air-conditioning system with the same, abnormal noise generated by a digital air-conditioning unit can be avoided, running noise is low, indoor comfort is improved, the air-conditioning outdoor unit is effectively applicable to families or office occasions and the like with strict requirements on mute, and popularization and application of a multi-split air conditioner are facilitated.
Description
Technical field
The utility model belongs to air-conditioning technical field, relates in particular to a kind of multi-gang air-conditioner off-premises station and has the air-conditioning system of this air-conditioner outdoor unit.
Background technology
Present air-conditioning system, multi-gang air-conditioner for example, multi-gang air-conditioner is commonly called as " one drag many ", refer to an air-conditioner outdoor unit and connect two or more indoor sets by pipe arrangement, off-premises station adopts air-cooled heat exchange form, indoor set to adopt direct evaporation and heat-exchange form.
Multi-gang air-conditioner is a kind of primary coolant air-conditioning system, and it is take cold-producing medium as pumped (conveying) medium, and off-premises station is comprised of outdoor heat exchanger, compressor and other refrigeration annexes, the indoor set that end equipment is comprised of direct-evaporation-type heat exchanger and blower fan.
An off-premises station can be to several indoor set refrigerant conveying liquid by pipeline.By the circulating mass of refrigerant of controlling compressor and the refrigerant flow that enters indoor each heat exchanger, can in time satisfy indoor hot and cold burden requirement, the plurality of advantages such as that the multi-connected machine system has is energy-conservation, comfortable, smooth running, and each room can independently regulate, and can satisfy the not demand of the different air conditioner loads of chummery.
Multi-online air-conditioning system has two types of connected machine and digital vortex multi-connected machines.The conventional air-conditioning off-premises station all is comprised of parts such as high pressure fluid reservoir, electronic throttle, heat exchanger, cross valve, oil eliminator, oil return capillary, digital compressor, low-pressure liquid storing tanks.
Digital scroll compressor has the performance of a uniqueness to be called " axial elasticity " in its Digital Scroll Technology.This performance makes fixing scroll plate that the seldom movement of amount can be arranged vertically, guarantees with optimal force, fixed scroll and orbiter to be loaded all the time jointly.This optimal force that under each operating condition, these two scroll plate is gathered together has been guaranteed the high efficiency of Digital Scroll Technology.Digital vortex operation minute two stages: " load condition ", this moment, magnetic valve was normally closed: " unloaded state ", this moment, magnetic valve was opened.In load condition, compressor is worked as conventional screw compressor, transmits all told and cold-producing medium matter flow.In unloaded state, pass through compressor without capacity and cold-producing medium matter flow.Load, unloading by compressor cycle realize the control of varying capacity refrigerant.
In prior art, unit is when the output of operation part ability, and digital compressor relieving capacity occurs adding and regulates operation, produces significantly to add unloading sound.This sound can be delivered to indoor set by the pipe arrangement that connects, and causes that because changing between outer machine refrigerant pressure gap the indoor set running noise is unstable, causes indoor comfort degree to reduce.At family or the office relatively strict to tonequality, it is not too applicable that this machine seems, this also just limits popularizing of this machine.
The utility model content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, a kind of air-conditioner outdoor unit is provided and has had the air-conditioning system of this air-conditioner outdoor unit, its operation noise is low, be beneficial to the raising indoor comfort degree, can be applicable to well quiet relatively strict family or office etc., be beneficial to the universal of multi-gang air-conditioner and use.
the utility model is achieved in that a kind of air-conditioner outdoor unit, comprise compressor bank, oil eliminator, multiple-way valve, heat exchanger and electronic throttle, described compressor bank has blast pipe and muffler, and described multiple-way valve has exhaust end, suction end, condensation end and evaporation ends, described blast pipe is connected in described oil eliminator, described oil eliminator is connected in the exhaust end of described multiple-way valve, the suction end of described multiple-way valve is connected in the muffler of described compressor bank, the condensation end of described multiple-way valve is connected in described heat exchanger, described electronic throttle is connected in described heat exchanger, be provided with on pipeline between the exhaust end of described multiple-way valve and the blast pipe of described compressor bank be used to the high pressure one-way stop valve that prevents that the blast pipe fluid from flowing backwards, be provided with on pipeline between the suction end of described multiple-way valve and the muffler of described compressor bank for the low pressure one-way stop valve that prevents that the muffler fluid from flowing backwards.
Particularly, described compressor bank comprises digital scroll compressor.
Particularly, described high pressure one-way stop valve and low pressure one-way stop valve are magnetic valve.
Particularly, described air-conditioner outdoor unit also comprises high pressure fluid reservoir, high-pressure stop valve and low-pressure shutoff valve, and described electronic throttle is connected in described high pressure fluid reservoir, and described high pressure fluid reservoir is connected in described high-pressure stop valve; The evaporation ends of described multiple-way valve is connected in described low-pressure shutoff valve; Be connected with digital oil return capillary between the muffler of described oil eliminator and described digital scroll compressor.
Particularly, be connected with low-pressure liquid storing tank between the suction end of described multiple-way valve and described muffler.
Particularly, described low pressure one-way stop valve is arranged on pipeline between the muffler of described low-pressure liquid storing tank and described compressor bank.
Particularly, described high pressure one-way stop valve is arranged on pipeline between the exhaust end of described oil eliminator and described multiple-way valve.
Particularly, described compressor bank also comprises constant speed compressor, described constant speed compressor has constant speed blast pipe, constant speed muffler and constant speed oil return capillary, described constant speed blast pipe is connected in described oil eliminator together with described blast pipe, described constant speed muffler and described muffler are connected in described suction end together, and described constant speed oil return capillary is connected in described oil eliminator and described constant speed muffler.
Particularly, be connected with oil balance tube between described digital scroll compressor and described constant speed compressor.
The utility model also provides a kind of air-conditioning system, comprises above-mentioned air-conditioner outdoor unit.
A kind of air-conditioner outdoor unit that the utility model provides and the air-conditioning system with this air-conditioner outdoor unit, it is by having increased the muffler that is arranged on digital scroll compressor and the low pressure one-way stop valve between multiple-way valve in air-conditioner outdoor unit, can prevent digital compressor in loading procedure because the pressure instantaneous variation causes muffler refrigerant and gas backflow, change thereby overcome indoor-unit cooling-medium pressure the problem that produces noise; Be arranged on the high pressure one-way stop valve between many cross valves and oil eliminator, can prevent that digital scroll compressor from flowing backwards because the pressure instantaneous variation causes the blast pipe fluid, changes thereby overcome indoor-unit cooling-medium pressure the problem that produces noise in uninstall process.Thereby can avoid the Digital Air Conditioning Units unit to send abnormal sound, operation of air conditioner can not produce abnormal sound, be beneficial to the raising indoor comfort degree, can be applicable to well quiet relatively strict family or office etc., be beneficial to the universal of multi-gang air-conditioner and use.
Description of drawings
Fig. 1 is system's connection layout of the air-conditioner outdoor unit that provides of the utility model embodiment one;
Fig. 2 is system's connection layout of the air-conditioner outdoor unit that provides of the utility model embodiment two.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
Embodiment one:
A kind of air-conditioner outdoor unit that the utility model embodiment provides, it can be applicable in multi-gang air-conditioner, multi-gang air-conditioner is commonly called as " one drag many ", refer to an air-conditioner outdoor unit and connect two or more indoor sets by pipe arrangement.
As shown in Figure 1, above-mentioned air-conditioner outdoor unit comprises compressor bank 38, oil eliminator 36, multiple-way valve 34, heat exchanger 33 and electronic throttle 32, and described compressor bank 38 has blast pipe 381 and muffler 382.Described multiple-way valve 34 can be cross valve, and it has exhaust end 341, suction end 342, condensation end 343 and evaporation ends 344; Described blast pipe 381 is connected in described oil eliminator 36, described oil eliminator 36 is connected in the exhaust end 341 of described multiple-way valve 34, the suction end 342 of described multiple-way valve 34 is connected in the muffler 382 of described compressor bank 38, be connected with oil return capillary 37 between oil eliminator 36 and compressor bank 38, form a partial circulating loop by oil return capillary 37 between oil eliminator 36 and compressor bank 38.The condensation end 343 of described multiple-way valve 34 is connected in heat exchanger 33.Be provided with on pipeline between the exhaust end 341 of described multiple-way valve 34 and the blast pipe 381 of described compressor bank 38 be used to the high pressure one-way stop valve 35 that prevents that blast pipe 381 fluids from flowing backwards, be provided with on the pipeline between the suction end 342 of described multiple-way valve 34 and the muffler 382 of described compressor bank 38 for the low pressure one-way stop valve 39 that prevents that muffler 382 fluids from flowing backwards.Like this, in the unit operation cycle, the pipeline of impact flow rapidly of low pressure one-way stop valve 39 refrigerant and gas when preventing pressure transient, thus avoid indoor set to produce the problem of noise.Finish moment at unit operation, compressor bank is shut down, the internal duct release, thus high pressure one-way stop valve 35 pipeline of flow-reversing impingement rapidly of refrigerant and gas when preventing pressure transient avoids indoor set to produce the problem of noise.By low pressure one-way stop valve 39 and high pressure one-way stop valve 35 are set, when having overcome air-conditioner outdoor unit of the prior art pressurization or release in muffler 382 the pressure instantaneous variation make gas and refrigerant a moment impact be arranged and produce noise pipeline, noise is passed the noise problem of indoor set back by pipeline; Air-conditioner outdoor unit provided by the utility model, it has the abnormal sound control system that is comprised of etc. high pressure one-way stop valve 35 and low pressure one-way stop valve 39, effectively eliminated noise, be beneficial to the raising indoor comfort degree, can be applicable to well quiet relatively strict family or office etc., be beneficial to the universal of multi-gang air-conditioner and use.
Particularly, as shown in Figure 1, as an embodiment of the present utility model, described compressor bank 38 is single compressor system, and it comprises digital scroll compressor.So-called digital scroll compressor (also claiming digital compressor), its utilization " axial elasticity " technology, " axial elasticity " allows scroll plate axially can move very little distance, guarantees that scroll plate carries out work with the power of the best all the time.Two scroll plate are closely linked under any running environment, guarantee that screw compressor has very high Energy Efficiency Ratio.The controlled circulation cycle of digital scroll compressor comprises one section " load phase " and one section " unloading phase ".During load, compressor is worked as conventional screw compressor, transmits all told, and compressor is output as 100%.During unloading, due to the flexible design of compressor, two scroll plate are axially having a microseparation, no longer include cold-producing medium by compressor, and compressor is output as 0.A job of digital scroll compressor " cycle time " comprises " load condition " time and " unloaded state " time, and the various combination of these two times determines the capacity regulating of compressor.By changing this two times, with regard to the output capacity of adjustable compressor.
Particularly, high pressure one-way stop valve 35 and low pressure one-way stop valve 39 are also the valve body of the suitable type such as magnetic valve.
Particularly, the condensation end 343 of described multiple-way valve 34 is connected in described heat exchanger 33 as shown in Figure 1, and described heat exchanger 33 is connected in described electronic throttle 32.
Particularly, as shown in Figure 1, described air-conditioner outdoor unit also comprises high pressure fluid reservoir 31, high-pressure stop valve 41 and low-pressure shutoff valve 42, and described electronic throttle 32 is connected in described high pressure fluid reservoir 31, and described high pressure fluid reservoir 31 is connected in described high-pressure stop valve 41; The evaporation ends 344 of described multiple-way valve 34 is connected in described low-pressure shutoff valve 42; Be connected with oil return capillary 37 between the muffler 382 of described oil eliminator 36 and described digital scroll compressor.Indoor set can be connected in high-pressure stop valve 41 and low-pressure shutoff valve 42 by connecting line.
Particularly, as shown in Figure 1, be connected with low-pressure liquid storing tank 39 between the suction end 342 of described multiple-way valve 34 and described muffler 382.Oil eliminator 36 communicates with the exhaust end 341 of multiple-way valve 34 by high pressure one-way stop valve 35, the condensation end 343 of multiple-way valve 34 connects heat exchanger 33, evaporation ends 344 can be connected in evaporimeter by low-pressure shutoff valve 42, suction end 342 connects city low-pressure liquid storing tank 39, wherein heat exchanger 33 1 ends are connected with electronic throttle 32, high pressure fluid reservoir 31 and high-pressure stop valve 41, and low-pressure liquid storing tank 39 is connected to form closed circuit by low pressure one-way stop valve 39 and digital scroll compressor.
Particularly, as shown in Figure 1, described low pressure one-way stop valve 39 is arranged on pipeline between the muffler 382 of described low-pressure liquid storing tank 39 and described compressor bank 38.Certainly, understandably, low pressure one-way stop valve 39 also can be arranged at other correct position, all belongs to protection domain of the present utility model.
Particularly, as shown in Figure 1, described high pressure one-way stop valve 35 is arranged on pipeline between the exhaust end 341 of described oil eliminator 36 and described multiple-way valve 34.Certainly, understandably, high pressure one-way stop valve 35 also can be arranged on other correct position, all belongs to protection domain of the present utility model.
As shown in Figure 1, as single compressor Digitalscroll machine system, system's service hours code compressor enters heat exchanger 33 by oil eliminator 36 after refrigerant is compressed into high temperature and high pressure gas, and heat exchanger 33 carries out isobaric heat exchange with water or air, becomes the cryogenic high pressure liquid state and enters high pressure fluid reservoir 31.Liquid refrigerants enters the valve expenditure and pressure, becomes the low-temp low-pressure liquid state and enters low-pressure liquid storing tank 39, and finally enter digital scroll compressor and complete a circulation.
The utility model also provides a kind of air-conditioning system, comprises indoor apparatus of air conditioner, also comprises above-mentioned air-conditioner outdoor unit, and described indoor apparatus of air conditioner is connected with described air-conditioner outdoor unit, and described indoor apparatus of air conditioner is provided with at least two.Certainly, indoor apparatus of air conditioner also can be set to one.By low pressure one-way stop valve 39 and high pressure one-way stop valve 35 are set, can reduce system pressure, allow the pressure differential that digital compressor causes in adding uninstall process can not be delivered to indoor set.And by the enough large refrigerant storage tank of increase capacity, can play the pressure balance effect.
As shown in Figure 1, by increased the muffler 382 that is arranged on digital scroll compressor and the low pressure one-way stop valve 39 between multiple-way valve 34 in air-conditioner outdoor unit, its can prevent digital compressor in loading procedure because the pressure instantaneous variation causes muffler 382 refrigerants and gas backflow, change thereby overcome indoor-unit cooling-medium pressure the problem that produces noise; Be arranged on the high pressure one-way stop valve 35 between many cross valves and oil eliminator 36, can prevent that digital scroll compressor from flowing backwards because the pressure instantaneous variation causes blast pipe 381 fluids, changes thereby overcome indoor-unit cooling-medium pressure the problem that produces noise in uninstall process.
And, as shown in Figure 1, low pressure one-way stop valve 39 is arranged between the main muffler 382 and multiple-way valve 34 of digital scroll compressor, its can prevent well digital compressor in loading procedure because the pressure instantaneous variation causes muffler 382 refrigerants and gas backflow.High pressure one-way stop valve 35 is arranged between multiple-way valve 34 and oil eliminator 36, its can prevent well digital compressor in uninstall process because the pressure instantaneous variation causes muffler 382 refrigerants and gas backflow.
High pressure one-way stop valve 35 and low pressure one-way stop valve 39 can be controlled with electromagnetic valve body simultaneously.In the situation that the installation site is constant, replaces with the electromagnetic type valve body and control.When digital scroll compressor magnetic valve in uninstall process is closed condition, prevent that refrigerant pressure moment in uninstall process from changing.Other state is conducting, and refrigerant can pass through.
Embodiment two:
On the basis of air-conditioner outdoor unit and air-conditioning system, the single compressor system in embodiment one is replaceable is the multi-compressor system in embodiment one.
Particularly, as shown in Figure 2, as another embodiment of the present utility model, described compressor bank is the multi-compressor system, and described compressor bank also comprises constant speed compressor 38b except comprising digital scroll compressor 38a.So-called fixed number compressor.Refer to the constant compressor of invariablenes turning speed of motor, its reliable in structure cost is low.Constant speed compressor 38b is provided with at least one, and the quantity of digital scroll compressor 38a and constant speed compressor 38b can be decided according to actual conditions, and constant speed compressor 38b can be set to one, also can be provided with two or more.In parallel between digital scroll compressor 38a and constant speed compressor 38b.described constant speed compressor 38b has constant speed blast pipe 3821, constant speed muffler 3822 and constant speed oil return capillary 3823, be connected in described oil eliminator 36 together with the blast pipe 3811 of described constant speed blast pipe 3821 and described digital scroll compressor 38a, the muffler 3812 of described constant speed muffler 3822 and described digital scroll compressor 38a is connected in described suction end 342 together, suction end 342 and constant speed muffler 3822, can be provided with low-pressure liquid storing tank 39 between muffler 3812, described constant speed oil return capillary 3823 is connected between described oil eliminator 36 and described constant speed muffler 3822.Suction end 342 in multiple-way valve 34 is connected in an end of low-pressure liquid storing tank 39.The pipeline of the other end output of low-pressure liquid storing tank 39 is divided into two branch roads, and a branch road is connected with constant speed compressor 38b, and another branch road is connected with digital scroll compressor 38a by low pressure one-way stop valve 39.
Particularly, as shown in Figure 2, be connected with oil balance tube between described digital scroll compressor 38a and described constant speed compressor 38b.
Particularly, as shown in Figure 2, described air-conditioner outdoor unit also comprises high pressure fluid reservoir 31, high-pressure stop valve 41 and low-pressure shutoff valve 42, and described electronic throttle 32 is connected in described high pressure fluid reservoir 31, and described high pressure fluid reservoir 31 is connected in described high-pressure stop valve 41; The evaporation ends 344 of described multiple-way valve 34 is connected in described low-pressure shutoff valve 42; Be connected with digital oil return capillary between the muffler 382 of described oil eliminator 36 and described digital scroll compressor 38a.Indoor set can be connected in high-pressure stop valve 41 and low-pressure shutoff valve 42 by connecting line.
Particularly, as shown in Figure 2, be connected with low-pressure liquid storing tank 39 between the suction end 342 of described multiple-way valve 34 and described muffler 382.Oil eliminator 36 communicates with the exhaust end 341 of multiple-way valve 34 by high pressure one-way stop valve 35, the condensation end 343 of multiple-way valve 34 connects heat exchanger 33, evaporation ends 344 connections are connected in evaporimeter by low-pressure shutoff valve 42, suction end 342 connects city low-pressure liquid storing tank 39, wherein heat exchanger 33 1 ends are connected with electronic throttle 32, high pressure fluid reservoir 31 and high-pressure stop valve 41, and low-pressure liquid storing tank 39 is connected to form closed circuit by low pressure one-way stop valve 39 with digital scroll compressor 38a.
Particularly, as shown in Figure 2, described low pressure one-way stop valve 39 is arranged on pipeline between the muffler 382 of described low-pressure liquid storing tank 39 and described compressor bank.Certainly, understandably, low pressure one-way stop valve 39 also can be arranged at other correct position in, all belong to protection domain of the present utility model.
Particularly, as shown in Figure 2, described high pressure one-way stop valve 35 is arranged on pipeline between the exhaust end 341 of described oil eliminator 36 and described multiple-way valve 34.Certainly, understandably, high pressure one-way stop valve 35 also can be arranged at other correct position in, all belong to protection domain of the present utility model.
As shown in Figure 2, as single compressor Digitalscroll machine system, system's service hours code compressor enters heat exchanger 33 by oil eliminator 36 after refrigerant is compressed into high temperature and high pressure gas, and heat exchanger 33 carries out isobaric heat exchange with water or air, becomes the cryogenic high pressure liquid state and enters high pressure fluid reservoir 31.Liquid refrigerants enters the valve expenditure and pressure, becomes the low-temp low-pressure liquid state and enters low-pressure liquid storing tank 39, and finally enter digital scroll compressor 38a and complete a circulation.
The utility model embodiment also provides a kind of air-conditioning system, comprises indoor apparatus of air conditioner, also comprises above-mentioned air-conditioner outdoor unit, and described indoor apparatus of air conditioner is connected with described air-conditioner outdoor unit, and described indoor apparatus of air conditioner is provided with at least two.
The above is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace or improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. an air-conditioner outdoor unit, comprise compressor bank, oil eliminator, multiple-way valve, heat exchanger and electronic throttle, and described compressor bank has blast pipe and muffler, and described multiple-way valve has exhaust end, suction end, condensation end and evaporation ends, described blast pipe is connected in described oil eliminator, described oil eliminator is connected in the exhaust end of described multiple-way valve, the suction end of described multiple-way valve is connected in the muffler of described compressor bank, the condensation end of described multiple-way valve is connected in described heat exchanger, described electronic throttle is connected in described heat exchanger, it is characterized in that, be provided with on pipeline between the exhaust end of described multiple-way valve and the blast pipe of described compressor bank be used to the high pressure one-way stop valve that prevents that the blast pipe fluid from flowing backwards, be provided with on pipeline between the suction end of described multiple-way valve and the muffler of described compressor bank for the low pressure one-way stop valve that prevents that the muffler fluid from flowing backwards.
2. air-conditioner outdoor unit as claimed in claim 1, is characterized in that, described compressor bank comprises digital scroll compressor.
3. air-conditioner outdoor unit as claimed in claim 1, is characterized in that, described high pressure one-way stop valve and low pressure one-way stop valve are magnetic valve.
4. air-conditioner outdoor unit as claimed in claim 1, it is characterized in that, described air-conditioner outdoor unit also comprises high pressure fluid reservoir, high-pressure stop valve and low-pressure shutoff valve, and described electronic throttle is connected in described high pressure fluid reservoir, and described high pressure fluid reservoir is connected in described high-pressure stop valve; The evaporation ends of described multiple-way valve is connected in described low-pressure shutoff valve; Be connected with digital oil return capillary between the muffler of described oil eliminator and described digital scroll compressor.
5. air-conditioner outdoor unit as claimed in claim 1, is characterized in that, is connected with low-pressure liquid storing tank between the suction end of described multiple-way valve and described muffler.
6. air-conditioner outdoor unit as claimed in claim 5, is characterized in that, described low pressure one-way stop valve is arranged on pipeline between the muffler of described low-pressure liquid storing tank and described compressor bank.
7. air-conditioner outdoor unit as claimed in claim 1, is characterized in that, described high pressure one-way stop valve is arranged on pipeline between the exhaust end of described oil eliminator and described multiple-way valve.
8. air-conditioner outdoor unit as described in any one in claim 2 to 7, it is characterized in that, described compressor bank also comprises constant speed compressor, described constant speed compressor has constant speed blast pipe, constant speed muffler and constant speed oil return capillary, described constant speed blast pipe is connected in described oil eliminator together with described blast pipe, described constant speed muffler and described muffler are connected in described suction end together, and described constant speed oil return capillary is connected in described oil eliminator and described constant speed muffler.
9. air-conditioner outdoor unit as claimed in claim 8, is characterized in that, is connected with oil balance tube between described digital scroll compressor and described constant speed compressor.
10. an air-conditioning system, is characterized in that, also comprises air-conditioner outdoor unit as claimed in any one of claims 1-9 wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220633885.5U CN202993403U (en) | 2012-11-26 | 2012-11-26 | Air-conditioning outdoor unit and air-conditioning system with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220633885.5U CN202993403U (en) | 2012-11-26 | 2012-11-26 | Air-conditioning outdoor unit and air-conditioning system with same |
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| CN202993403U true CN202993403U (en) | 2013-06-12 |
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| CN201220633885.5U Expired - Fee Related CN202993403U (en) | 2012-11-26 | 2012-11-26 | Air-conditioning outdoor unit and air-conditioning system with same |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791912A (en) * | 2015-04-27 | 2015-07-22 | 广东美的暖通设备有限公司 | Multi-compressor air conditioning system and control method thereof |
| CN105157277A (en) * | 2014-06-03 | 2015-12-16 | 广东美的暖通设备有限公司 | Multi-connected split air conditioning system |
| CN105299956A (en) * | 2015-10-16 | 2016-02-03 | 珠海格力电器股份有限公司 | Compressor oil return control device and method, and air conditioner with device |
| CN111256379A (en) * | 2018-11-30 | 2020-06-09 | 广东美芝精密制造有限公司 | Refrigerating device |
-
2012
- 2012-11-26 CN CN201220633885.5U patent/CN202993403U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157277A (en) * | 2014-06-03 | 2015-12-16 | 广东美的暖通设备有限公司 | Multi-connected split air conditioning system |
| CN104791912A (en) * | 2015-04-27 | 2015-07-22 | 广东美的暖通设备有限公司 | Multi-compressor air conditioning system and control method thereof |
| CN105299956A (en) * | 2015-10-16 | 2016-02-03 | 珠海格力电器股份有限公司 | Compressor oil return control device and method, and air conditioner with device |
| CN111256379A (en) * | 2018-11-30 | 2020-06-09 | 广东美芝精密制造有限公司 | Refrigerating device |
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Effective date of registration: 20131129 Address after: 528311 Guangdong, Foshan, Beijiao, the United States, the United States and the United States on the avenue of the United States, the headquarters of the United States building B floor, District, 26-28 Patentee after: Midea Group Co., Ltd. Address before: 528311 Beijiao, Foshan, Shunde District, the town of Guangdong, the United States Avenue, No. 6 Patentee before: Meidi Electric Appliances Co., Ltd., Guangdong |
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Granted publication date: 20130612 Termination date: 20181126 |