CN204513572U - A kind of cabinet type air conditioning device - Google Patents
A kind of cabinet type air conditioning device Download PDFInfo
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- CN204513572U CN204513572U CN201420708258.2U CN201420708258U CN204513572U CN 204513572 U CN204513572 U CN 204513572U CN 201420708258 U CN201420708258 U CN 201420708258U CN 204513572 U CN204513572 U CN 204513572U
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Abstract
The utility model discloses a kind of cabinet type air conditioning device, it uses the R32/R290 mix refrigerant that global warming potential (GWP) is little, magnetic valve is positioned at indoor set, and be closely connected with the indoor heat exchanger that cold-producing medium and room air carry out heat exchange, small-pipe diameter heat exchanger or micro-channel heat exchanger also can be adopted can to effectively reduce the size of heat exchanger, effectively can prevent global warming.This cabinet type air conditioning device comprises in refrigerating circuit the outdoor heat exchanger that refrigeration compressor, four-way change-over valve, cold-producing medium and surrounding medium carry out heat exchange, device for drying and filtering, throttle mechanism, cold-producing medium and room air carry out the indoor heat exchanger of heat exchange, the magnetic valve between outdoor heat exchanger and indoor heat exchanger in connecting pipe, and indoor, off-premises station blower fan.The filling quantity of mix refrigerant is 60-130g/kW refrigerating capacity, and the utility model reduces the danger of combustion that filling quantity of refrigerant may bring, and improves the security of refrigeration system, has the feature of safety, environmental protection.
Description
Technical field
The utility model relates to a kind of cabinet type air conditioning device, particularly relates to a kind ofly to adopt R32/R290 mix refrigerant to substitute the cabinet type air conditioning device of R22 and R410a for freezing, in the equipment such as air-conditioning, heat pump.
Background technology
At present in middle-size and small-size refrigeration, air-conditioning, source pump is (as room air conditioner, Air conditioning unit, multi-joint unit etc.) in generally all adopt there is excellent physical chemistry and thermodynamic property and good safety in utilization, the HCFC-22 of economy etc. are most widely used, the classic cold-producing medium of combination property is as cold-producing medium, but HCFC-22 has ODP (ozone depletion potential) value and higher GWP (global warming potential) value, not friendly to the environment, listed in the material requiring that time limit is superseded in advance by the 19th the Montreal Protocol conference of states parties that 2007 hold.
Substitute for HCFC-22 is studied, carry out a large amount of research work both at home and abroad, that the most ripe is R410A (HFC-32/HFC-125 at present, quality composition 50/50%), secondly R407C (HFC-32/HFC-l25/HFC-l34a is also had, quality composition 23/25/52%), R134a also substitutes HCFC-22 in certain application in addition, the common feature of these cold-producing mediums not only has good physical chemistry and thermodynamic property, also there is good security, there is no combustibility and toxicity, destruction is not had to atmospheric ozone layer yet.
But these cold-producing mediums all have higher greenhouse gases effect value (GWP is all greater than 1400), wherein, R410A is more taller than the GWP value of HCFC-22, when global warming is very paid close attention in the whole world, the circumstances that the cold-producing medium of high GWP value being also limited facing, being eliminated, the HCFC-22 substitute that R410A now neither be desirable.At present, from the environmental protection new demand that ODP and GWP lays equal stress on, HC-290 (ODP=0, GWP=20), HFC-32 (ODP=0, and HFC1234yf (ODP=0 GWP=675), GWP=6) be that (wherein the refrigerating effect per unit swept volume of HFC1234yf is little for the optimum substituent of HCFC-22 respectively as pure refrigerant, the above two are inferior to) when alternative HCFC22, but the common feature of these cold-producing mediums all has combustibility, and the delivery temperature of R32 is high, in actual use especially at room air conditioner, Air conditioning unit, the refrigeration of multi-joint unit etc. and personnel's close contact, air-conditioning, larger security risk is there is in the application scenario of heat pump.
In order to avoid the harm that the cold-producing medium such as flammable, poisonous produces personnel, strict restriction is carried out to the filling quantity of the combustible refrigerant adopting the refrigeration system of combustible refrigerant in succession in a series of world, domestic standard, as International Power association criterion IEC60335-2-40, EU criteria EN378 and GB GB/T4706.32 etc., these are strictly limited in combustible refrigerant filling quantity the partial properties that have impact on refrigeration system to a certain extent.As the maximum permission filling quantity requirement of above-mentioned standard can be met when R290 is applied in 2 and following detachable air conditioner, but when being applied to 2 and above cabinet type air conditioning device and smallpox installing type air-conditioner because filling quantity is large, exceed the maximum permission filling quantity of above-mentioned standard and above-mentioned air-conditioner can not be used for, therefore finding and not only there is the excellent feature of environmental protection but also safety, energy-conservation cabinet type air conditioning device have become one of urgent task that current refrigeration air conditioner industry faces.
Utility model content
The object of the utility model is to provide a kind of cabinet type air conditioning device; it adopts global warming potential GWP is less than R32, delivery temperature is lower than R32, lower flammability limit is higher than R290 again R32/R290 mix refrigerant as cold-producing medium; obtain the refrigerating capacity exceeding prior art; the energy-saving cabinet type air conditioning device being conducive to tackling global warming of filling quantity of refrigerant can be reduced than prior art; both met current Ozonosphere protection and alleviated the environmental requirement that global warming lays equal stress on, there is again good security.
A kind of cabinet type air conditioning device that the utility model provides, comprise off-premises station and indoor set, it is characterized in that, described off-premises station comprises refrigeration compressor, four-way change-over valve, the First Heat Exchanger carrying out heat exchange for cold-producing medium and surrounding medium, device for drying and filtering, throttle mechanism and off-premises station blower fan, and described indoor set comprises magnetic valve, indoor set blower fan and for cooled or heated object and carry out the second heat exchanger of heat exchange; Cold-producing medium used is R32/R290 mix refrigerant;
A port of First Heat Exchanger is connected with indoor set blower fan by refrigeration compressor and the second connecting pipe;
Another port of First Heat Exchanger is connected with the second heat exchanger with the first connecting pipe by device for drying and filtering, first connecting pipe is also provided with described device for drying and filtering, throttle mechanism and magnetic valve, magnetic valve is closely connected with the second heat exchanger, magnetic valve is used for the flow of refrigerant of fast shut-off magnetic valve both sides if desired, is effectively separated by off-premises station refrigerant side volume together with refrigeration compressor with indoor set refrigerant volume.
As the further improvement of technique scheme, the indoor heat exchanger of cabinet type air conditioning device of the present utility model adopts that diameter is 7mm and the micro-channel heat exchanger such as following fin-tube heat exchanger or parallel-flow heat exchanger, outdoor heat exchanger adopts diameter to be 5mm and the micro-channel heat exchanger such as following fin-tube heat exchanger or parallel-flow heat exchanger, to reduce the filling quantity of mix refrigerant as much as possible; The filling quantity of cabinet type air conditioning device mix refrigerant of the present utility model is every kW refrigerating capacity 60g-130g.
The cabinet type air conditioning device that the utility model provides compared with prior art, has the following advantages: cold-producing medium adopts the mix refrigerant of 0ODP, low GWP, and this mix refrigerant is R32/R290 mix refrigerant, its ODP=0, GWP<480; The connecting pipe of the utility model in indoor machine, between off-premises station and indoor set increases a magnetic valve, and this magnetic valve is closely connected with the indoor heat exchanger of refrigeration system.The flow of refrigerant of magnetic valve both sides can be cut off rapidly like this when compressor shutdown, together off-premises station refrigerator-side volume is effectively separated with indoor set refrigerant volume with compressor, significantly reduce off-premises station and indoor set refrigerant amount separately, reduce the danger of combustion that filling quantity of refrigerant may bring, improve the security of refrigeration system;
A kind of refrigeration system that the utility model provides both can realize the object of refrigeration cool-down, also can reach the object that heat pump heats.At refrigeration cool-down, once compressor quits work, the cold-producing medium of high-pressure side and low-pressure side just maintains amount during each self-operating, substantially to reduce the leakage rate of cold-producing medium when indoor occurs to leak, when heat pump heats, after compressor quits work, magnetic valve late release, to allow the cold-producing medium of indoor flow to outside under differential pressure action, after such closed electromagnetic valve, the cold-producing medium of side of staying within greatly reduces, and improves the security of cabinet type air conditioning device.
Accompanying drawing explanation
Fig. 1 is that a kind of that the utility model provides both can realize the structural representation that refrigeration cool-down also can realize the cabinet type air conditioning device refrigeration system that heat pump heats.
Fig. 2 is a kind of structural representation only realizing the cabinet type air conditioning device refrigeration system of refrigeration cool-down that the utility model provides.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described further.It should be noted that at this, the explanation for these embodiments understands the utility model for helping, but does not form restriction of the present utility model.In addition, if below in described each embodiment of the utility model involved technical characteristic do not form conflict each other and just can mutually combine.
For the system that not only can realize refrigeration cool-down but also can realize the mix refrigerant that heat pump heats, cold-producing medium adopts R32 and R290 to mix, the utility model is described in further detail below.As shown in Figure 1, a kind of cabinet type air conditioning device that the utility model provides comprises refrigeration compressor 1, outdoor heat exchanger 3, off-premises station blower fan 10, indoor heat exchanger 8 and indoor set blower fan 11; Be connected by first, second connecting pipe 7,9 between outdoor heat exchanger 3 with indoor heat exchanger 8, wherein, first connecting pipe 7 is provided with device for drying and filtering 4, throttle mechanism 5 and magnetic valve 6, magnetic valve 6 is near indoor heat exchanger 8, and in indoor set, second connecting pipe 9 is provided with four-way change-over valve 2, a port of refrigeration compressor 1 is connected with a null interface a of four-way change-over valve 2, and another port is connected with another null interface d of four-way change-over valve 2 by the reservoir (also can not having this reservoir) of compressor.Refrigeration compressor 1, four-way change-over valve 2, cold-producing medium and surrounding medium carry out the outdoor heat exchanger 3 of heat exchange, device for drying and filtering 4, throttle mechanism 5 and off-premises station blower fan 10 and form off-premises station, be placed on outdoor operation, with cooled or heated object and carried out the indoor heat exchanger 8 of heat exchange, magnetic valve 6 forms indoor set with indoor set blower fan 11, is placed on indoor operation.
During refrigeration, outdoor heat exchanger 3 is as condenser, and indoor heat exchanger 8 is as evaporimeter, and when heating, outdoor heat exchanger 3 is as evaporimeter, and indoor heat exchanger 8 is as condenser.
Indoor heat exchanger 8 adopts diameter to be less than or equal to the micro-channel heat exchanger such as fin-tube heat exchanger or parallel-flow heat exchanger of 7mm, and outdoor heat exchanger 3 adopts diameter to be less than or equal to the micro-channel heat exchanger such as fin-tube heat exchanger or parallel-flow heat exchanger of 5mm.The filling quantity of mix refrigerant is every kW refrigerating capacity 60g-130g.
When freezing, the R32/R290 mixed refrigerant vapor of the HTHP that refrigeration compressor 1 is discharged enters outdoor heat exchanger 3 through the a-c interface of four-way change-over valve 2, by the operation of off-premises station blower fan 10, to surrounding medium heat radiation, cooling is condensed into the R32/R290 mixed refrigerant liquid of high pressure, after device for drying and filtering 4, enter the R32/R290 mix refrigerant that throttle mechanism 5 step-down becomes the gas-liquid two-phase of low-temp low-pressure, the R32/R290 mixed refrigerant vapor that indoor heat exchanger 8 heat absorption flashes to low pressure is entered again through connecting pipe 7 and magnetic valve 6, and send indoor back to after being lowered the temperature by room air by the operation of indoor set blower fan 11, and refrigerant vapour eventually passes the b-d interface of connecting pipe 9 and four-way change-over valve 2, cooled compressor 1 sucks, compression, enter next kind of refrigeration cycle, thus reached needing cooling or needing the space of cooling to carry out the object of refrigeration cool-down by inner side heat exchanger 8 and indoor set blower fan 11.
Its control method is: after energising, first starts indoor heat exchanger blower fan 11 and outdoor heat exchanger blower fan 10, now comprises the equal no powers of other electrical equipment such as compressor.Bring into operation at indoor heat exchanger blower fan 11 and outdoor heat exchanger blower fan 10, run a period of time (as run for 5 seconds, can be 2 seconds to 10 seconds) after, magnetic valve 6 energising is opened, high-pressure side and low-pressure side UNICOM, pressure at both sides starts balance, 3 minutes are energized (according to the balancing speed of pressure at both sides at magnetic valve 6, can between 1 minute to 5 minutes) after, compressor 1 is energized and runs, air-conditioner starts refrigeration cool-down, when the temperature of air-conditioned room reaches setting shutdown temperature, temperature controller controls compressor 1 and magnetic valve 6 power-off, compressor 1 is out of service, magnetic valve 6 power-off is closed, and indoor fan and outdoor fan remain in operation about 1 minute (according to the programming rate of indoor heat exchanger cold-producing medium, can between 30 seconds to 3 minutes) after, power-off shuts down.When indoor temperature reaches turn-on temperature, repeat above-mentioned energising running.Like this due to when air-conditioner power-off, magnetic valve 6 closes the cold-producing medium path that flows to indoor heat exchanger 8 (now as the evaporimeter of refrigeration system) of heat exchanger 3 (now as the condenser of refrigeration system) outdoor, R32/R290 mix refrigerant in indoor heat exchanger 8 and connecting line 9 thereof will only have the 20%-30% of whole air-conditioner (in prior art, its ratio reaches more than 40%) left and right, the total amount of such indoor heat exchanger R32/R290 mix refrigerant significantly reduces, harmfulness significantly reduces, and security increases substantially.
Equally, as shown in Figure 1, a kind of refrigeration system that the utility model provides is when heat pump heats, the HTHP R32/R290 mixed refrigerant vapor that refrigeration compressor 1 is discharged through the a-b interface of four-way change-over valve 2 through connecting pipe 9, enter indoor heat exchanger 8, by the operation of indoor fan 11, the R32/R290 mixed refrigerant liquid of high pressure is condensed into being lowered the temperature by heating target (space) heat release, the R32/R290 mix refrigerant that throttle mechanism 5 step-down becomes the gas-liquid two-phase of low-temp low-pressure is being entered after connecting pipe 7 through magnetic valve 6, outdoor heat exchanger 3 is entered through device for drying and filtering 4, by the operation of outdoor fan 10, the R32/R290 mixed refrigerant vapor of low pressure is flashed to from surrounding medium heat absorption, again through the c-d interface of four-way change-over valve 2, cooled compressor 1 sucks, compression, enter next heat pump and heat circulation, thus reach the object to needing heating thing or need heating space to carry out heat pump to heat by indoor heat exchanger 8 and indoor fan 11.
Its control method is: when normally running, and after energising, first starts indoor heat exchanger blower fan 11 and outdoor heat exchanger blower fan 10, now comprises the equal no powers of other electrical equipment such as compressor.Bring into operation at indoor heat exchanger blower fan 11 and outdoor heat exchanger blower fan 10, run a period of time (as run for 5 seconds, can be 2 seconds to 10 seconds) after, magnetic valve 6 energising is opened, the volume UNICOM of magnetic valve 6 both sides, pressure at both sides starts balance, after magnetic valve 6 is energized 3 minutes, compressor 1 is energized and runs, air-conditioner starts heat pump and heats, when the temperature of air-conditioned room reaches setting shutdown temperature, temperature controller controls compressor 1 power-off, and magnetic valve 6 not power-off, compressor 1 is out of service, magnetic valve 6 continues to open, and indoor fan and outdoor fan remain in operation after about 1 minute (can be 30 seconds to 3 minutes), power-off shuts down.When indoor temperature reaches turn-on temperature, repeat above-mentioned energising running.Like this due to when air-conditioner power-off, magnetic valve 6 continues to open, be conducive to cold-producing medium indoor heat exchanger 8 (now as the condenser of refrigeration system) flow to outdoor heat exchanger 3 (now as the evaporimeter of refrigeration system), cold-producing medium in indoor heat exchanger 8 and connecting line 9 thereof will only have about the 10-20% of whole air-conditioner (in prior art, its ratio reaches more than 30%), the total amount of such indoor R32/R290 mix refrigerant significantly reduces, harmfulness significantly reduces, and security increases substantially.During shutdown, air-conditioner power-off, compressor 1 first power-off, after indoor fan and outdoor fan remain in operation about 1 minute, power-off shuts down, magnetic valve 6 continues energising and opens power-off cut out again after 1-5 minute, be conducive to cold-producing medium indoor heat exchanger 8 (now as the condenser of refrigeration system) flow to outdoor heat exchanger 3 (now as the evaporimeter of refrigeration system), cold-producing medium in such indoor heat exchanger 8 and connecting line 9 thereof will only have about the 10-20% of whole air-conditioner, the total amount of indoor R32/R290 mix refrigerant significantly reduces, harmfulness significantly reduces, security increases substantially.
A kind of refrigeration system that the utility model provides is when only needing refrigeration cool-down, and system can become simpler.
A kind of refrigeration system that the utility model provides is when only needing refrigeration cool-down, its structure as shown in Figure 2, it only include refrigeration compressor 1, cold-producing medium and surrounding medium carry out the outdoor heat exchanger 3 of heat exchange, device for drying and filtering 4, throttle mechanism 5, outdoor heat exchanger 3 to the magnetic valve 6 in connecting pipe between indoor heat exchanger 8, connecting pipe 7 and 9, with cooled or heated object and carry out the indoor heat exchanger 8 of heat exchange and off-premises station blower fan 10 and indoor set blower fan 11.Wherein refrigeration compressor 1, cold-producing medium and surrounding medium carry out the outdoor heat exchanger 3 of heat exchange, device for drying and filtering 4, throttle mechanism 5 and off-premises station blower fan 10 and form off-premises station, be placed on outdoor operation, at outdoor heat exchanger 3 to the magnetic valve 6 in connecting pipe between indoor heat exchanger 8, with cooled or heated object and carry out the indoor heat exchanger 8 of heat exchange and indoor set blower fan 11 forms indoor set, be placed on indoor operation, connecting pipe 7 and 9 plays the effect being connected off-premises station and indoor set.
Its refrigeration cool-down process is that the high-temperature high-pressure refrigerant that refrigeration compressor 1 is discharged enters outdoor heat exchanger 3, by the operation of off-premises station blower fan 10, to surrounding medium heat radiation, cooling is condensed into high pressure refrigerant liquid, after device for drying and filtering 3, enter the gas-liquid two-phase cold-producing medium that throttle mechanism 4 step-down becomes low-temp low-pressure, the refrigerant vapour that indoor heat exchanger 8 heat absorption flashes to low pressure is entered again through connecting pipe 7 and magnetic valve 6, and send indoor back to after being lowered the temperature by room air by the operation of indoor set blower fan 11, and refrigerant vapour eventually passes connecting pipe 9, cooled compressor 1 sucks, compression, enter next kind of refrigeration cycle, thus reached needing cooling or needing the space of cooling to carry out the object of refrigeration cool-down by indoor heat exchanger 3 and indoor set blower fan 11.
Its control method is: after energising, first starts indoor heat exchanger blower fan 11 and outdoor heat exchanger blower fan 10, now comprises the equal no powers of other electrical equipment such as compressor.Bring into operation at indoor heat exchanger blower fan 11 and outdoor heat exchanger blower fan 10, after running a period of time (as 2 seconds to 10 seconds), magnetic valve 6 energising is opened, high-pressure side and low-pressure side UNICOM, pressure at both sides starts balance, after magnetic valve 6 is energized 3 minutes (can be 1 to 5 minute), compressor 1 is energized and runs, air-conditioner starts refrigeration cool-down, when the temperature of air-conditioned room reaches setting shutdown temperature, temperature controller controls compressor 1 and magnetic valve 6 power-off, compressor 6 is out of service, magnetic valve 6 power-off is closed, and indoor fan and outdoor fan remain in operation after about 1 minute (can be 30 seconds to 3 minutes), power-off shuts down.When indoor temperature reaches turn-on temperature, repeat above-mentioned energising running.Like this due to when air-conditioner power-off, magnetic valve 6 closes the cold-producing medium path that flows to indoor heat exchanger 8 (now as the evaporimeter of refrigeration system) of heat exchanger 3 (now as the condenser of refrigeration system) outdoor, cold-producing medium in indoor heat exchanger 8 and connecting line 7 and 9 thereof will only have about the 20%-30% of whole air-conditioner (in prior art, its ratio reaches more than 40%), the total amount of indoor R32/R290 mix refrigerant significantly reduces, harmfulness significantly reduces, and security increases substantially.
In the utility model, magnetic valve is closely connected with indoor heat exchanger, and one is located in indoor set.Throttle mechanism 5 can be any one in capillary, restriction sleeve, heating power expansion valve and electric expansion valve.
The mix refrigerant that the utility model adopts R32 and R290 to form, the mass content that its mixed proportion is preferably R32 is the mass content of 70%-55%, R290 is 30%-45%, and its optimal proportion is R32/R290 is 68/32.The utility model is by reasonably controlling compressor, operation order interval running time of magnetic valve and outdoor fan and indoor fan, not only ensure that the smooth startup optimization of compressor, preventing indoor set and off-premises station combustible refrigerant between down period from leaking causes combustible refrigerant to gather at indoor set and off-premises station, concentration exceedes the harm that combustible refrigerant lower flammability limit brings, but also magnetic valve can be utilized effectively to be separated with indoor set refrigerator-side volume by off-premises station refrigerant side volume with compressor, significantly reduce the refrigerant amount in indoor set, reduce the danger of combustion that filling quantity of refrigerant may bring, improve the security of refrigeration system, therefore refrigeration system of the present utility model has safety, the feature of environmental protection.
The above is preferred embodiment of the present utility model, but the utility model should not be confined to the content disclosed in this embodiment and accompanying drawing.The equivalence completed under not departing from spirit disclosed in the utility model so every or amendment, all fall into the scope of the utility model protection.
Claims (7)
1. a cabinet type air conditioning device, comprise off-premises station and indoor set, it is characterized in that, described off-premises station comprises refrigeration compressor, four-way change-over valve, the First Heat Exchanger carrying out heat exchange for cold-producing medium and surrounding medium, device for drying and filtering, throttle mechanism and off-premises station blower fan, and described indoor set comprises magnetic valve, indoor set blower fan and for cooled or heated object and carry out the second heat exchanger of heat exchange; Cold-producing medium used is R32/R290 mix refrigerant;
A port of First Heat Exchanger is connected with indoor set blower fan by refrigeration compressor and the second connecting pipe;
Another port of First Heat Exchanger is connected with the second heat exchanger with the first connecting pipe by device for drying and filtering, first connecting pipe is also provided with described device for drying and filtering, throttle mechanism and magnetic valve, magnetic valve is closely connected with the second heat exchanger, magnetic valve is used for the flow of refrigerant of fast shut-off magnetic valve both sides, is effectively separated by off-premises station refrigerant side volume together with refrigeration compressor with indoor set refrigerant volume.
2. a kind of cabinet type air conditioning device according to claim 1, it is characterized in that, described outdoor heat exchanger be that two interfaces a, d by four-way change-over valve are connected between refrigeration compressor, other two interfaces c, b of four-way change-over valve are connected with outdoor heat exchanger and indoor heat exchanger respectively.
3. cabinet type air conditioning device according to claim 1, is characterized in that, described indoor set only comprises magnetic valve, indoor set blower fan and indoor heat exchanger.
4. the cabinet type air conditioning device according to claim 1,2 or 3, is characterized in that, outdoor heat exchanger adopts diameter to be less than or equal to fin-tube heat exchanger or the micro-channel heat exchanger of 5mm.
5. the cabinet type air conditioning device according to claim 1,2 or 3, is characterized in that, indoor heat exchanger adopts diameter to be less than or equal to fin-tube heat exchanger or the micro-channel heat exchanger of 7mm.
6. according to the cabinet type air conditioning device described in claim 4, it is characterized in that, indoor heat exchanger adopts diameter to be less than or equal to fin-tube heat exchanger or the micro-channel heat exchanger of 7mm.
7. the cabinet type air conditioning device according to claim 1,2 or 3, is characterized in that, the filling quantity of cold-producing medium is 60g/kW refrigerating capacity-130g/kW refrigerating capacity.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420708258.2U CN204513572U (en) | 2014-11-21 | 2014-11-21 | A kind of cabinet type air conditioning device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420708258.2U CN204513572U (en) | 2014-11-21 | 2014-11-21 | A kind of cabinet type air conditioning device |
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| CN204513572U true CN204513572U (en) | 2015-07-29 |
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| CN201420708258.2U Expired - Fee Related CN204513572U (en) | 2014-11-21 | 2014-11-21 | A kind of cabinet type air conditioning device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105180285A (en) * | 2015-10-10 | 2015-12-23 | 南京佳旺安环境科技有限公司 | Air conditioner internal unit for shielding equipment cabinet |
| CN110671776A (en) * | 2019-09-23 | 2020-01-10 | 珠海格力电器股份有限公司 | Method, device and equipment for controlling outdoor unit of non-communication air conditioning unit and storage medium |
-
2014
- 2014-11-21 CN CN201420708258.2U patent/CN204513572U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105180285A (en) * | 2015-10-10 | 2015-12-23 | 南京佳旺安环境科技有限公司 | Air conditioner internal unit for shielding equipment cabinet |
| CN110671776A (en) * | 2019-09-23 | 2020-01-10 | 珠海格力电器股份有限公司 | Method, device and equipment for controlling outdoor unit of non-communication air conditioning unit and storage medium |
| CN110671776B (en) * | 2019-09-23 | 2020-11-13 | 珠海格力电器股份有限公司 | Method, device and equipment for controlling outdoor unit of non-communication air conditioning unit and storage medium |
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