CN102147177A - Air conditioner for defrost and variable-frequency heat pump - Google Patents
Air conditioner for defrost and variable-frequency heat pump Download PDFInfo
- Publication number
- CN102147177A CN102147177A CN2011100909839A CN201110090983A CN102147177A CN 102147177 A CN102147177 A CN 102147177A CN 2011100909839 A CN2011100909839 A CN 2011100909839A CN 201110090983 A CN201110090983 A CN 201110090983A CN 102147177 A CN102147177 A CN 102147177A
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- CN
- China
- Prior art keywords
- condenser
- heat pump
- compressor
- throttle mechanism
- conditioner
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/06—Removing frost
- F25D21/08—Removing frost by electric heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
- F25B2313/02741—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one four-way valve
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides an air conditioner for a defrost and variable-frequency heat pump, which comprises an indoor unit and an outdoor unit. The outdoor unit comprises a condenser, a fan, a reversing four-way valve and a compressor, wherein one end of the condenser is connected with the indoor unit through a connection pipeline, and the other end is connected with the compressor and the indoor unit through four-way valves; cut-off valves are arranged among the indoor unit, the condenser and the four-way valves; a throttle mechanism is arranged between a cut-off valve on the connection pipeline and the condenser; and a pipeline heating device is arranged between the throttle mechanism and the condenser. The air conditioner for the heat pump is free from heat loss during the defrost process, can better keep the indoor temperature constant, has less temperature fluctuation and improves the indoor comfort.
Description
Technical field
The invention belongs to the air-conditioner technical field, relate in particular to a kind of heat pump air conditioner with defrost function.
Background technology
Existing Air-source Heat Pump transducer air conditioning, in low temperature environment, carry out heating operation, when the evaporator refrigerant temperature of outdoor heat exchanger is lower than zero degree, the humidity of air reaches certain condition, the frosting gradually of outdoor heat exchanger fin surface, after the frost layer acquires a certain degree, the heat exchange effect sharply descends, at this moment just need carry out the defrost operation, action by cross valve, refrigerant flows to and changes, high temperature and high pressure gas flows into outdoor heat exchanger, and the low pressure, low temperature liquid after the cooling throttling need be drawn certain heat in indoor evaporation and keep system balancing, causes indoor heating discontinuous like this, even also can cause indoor thermal loss, refrigerant flows to when switching once more after defrosting is finished, the temperature increase demand that also will lose part heat balancing evaporator, compressor work consumed energy build-up pressure stable equilibrium, further loss heat and the fluctuation of aggravation room temperature, this is the intrinsic problem that tradition has reverse cycle defrost type heat pump air conditioner to exist.
Summary of the invention
The problem that the existence of reverse cycle defrost type heat pump air conditioner is arranged at above-mentioned tradition, the invention provides a kind of defrosting frequency conversion heat pump air-conditioner, this heat pump air conditioner is the empty calory loss in defrost process, and it is constant well to keep indoor temperature, temperature fluctuation is little, has improved indoor comfort.
Technical scheme of the present invention is: a kind of defrosting frequency conversion heat pump air-conditioner, comprise indoor set and off-premises station, off-premises station comprises condenser, fan, commutation cross valve, throttle mechanism and compressor, wherein said condenser one end is connected with indoor set by connecting pipe, throttle mechanism, the other end connects compressor and indoor set through cross valve, between indoor set and condenser and cross valve, be equipped with stop valve, between throttle mechanism and condenser, be provided with connecting pipe, between throttle mechanism and condenser, be provided with the pipeline heater.
Described pipeline heater is installed on the connecting pipe.
The mode of heating of described pipeline heater is resistance wire heating, electromagnetism heating or PTC heating.
Described compressor is the compressor with frequency control function.
The principle of the invention is when defrosting frequency conversion heat pump air-conditioner need defrost, the flow direction switching that cross valve is failure to actuate and is carried out refrigerant, just the running frequency (speed) of compressor reduces, keep flowing of refrigerant air-flow, assembly heater on the tube connector of throttle mechanism and condenser, the heat that mobile refrigerant air-flow produces heater are brought condenser into and are melted the frost layer, unnecessary heat is with emitting in the refrigerant inlet chamber, it is constant to keep indoor temperature better, and temperature fluctuation is littler, and indoor comfort is higher.
Description of drawings
Fig. 1 is an embodiment of the invention structural representation.
The specific embodiment
The present invention is described further below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, a kind of defrosting frequency conversion heat pump air-conditioner, comprise indoor set 20 and off-premises station 10, off-premises station 10 comprises condenser 1, fan 2, commutation cross valve 3, throttle mechanism 5 and compressor 8, wherein said condenser 1 one ends are connected with indoor set 20 by connecting pipe 7, throttle mechanism 5, the other end connects compressor 8 and indoor set 20 through cross valve 3, between indoor set 20 and condenser 1 and cross valve 3, be equipped with stop valve 6, between throttle mechanism 5 and condenser 1, be provided with connecting pipe 7, between throttle mechanism 5 and condenser 1, be provided with pipeline heater 4.
Described pipeline heater 4 is installed on the connecting pipe 7.
The mode of heating of described pipeline heater 4 is that resistance wire heating, electromagnetism heating or PTC add any mode of pining for.
The compressor of described compressor 8 for having the frequency control function.
As Fig. 1, air-conditioner is when carrying out heating operation, refrigerant flows and circulates by the arrow direction indication, when outdoor temperature humidity reaches condition, the fin surface of the condenser 1 of off-premises station 10 can produce the frost layer, the frost lamination sharply descends to the heating efficiency of certain thickness air-conditioner, air-conditioner need carry out Defrost operation, air-conditioner commutation this moment cross valve 3 need not commutation, and the refrigerant flow direction is constant, and compressor reduces running frequency (speed), keep the refrigerant air current flow, while pipeline heater 4 energising work produce heat, and heat flows into condenser 1 with refrigerant and melts the frost layer, and the interior machine of inlet chamber is emitted behind the compressed machine of unnecessary heat, frost layer up to condenser 1 melts fully, the compressor raising frequency is to normally heating the frequency operation, and whole defrost process does not have the refrigerant commutation to flow, and does not have pressure to rebulid balance loss.It is constant to keep indoor temperature better, and temperature fluctuation is littler, and indoor comfort is higher.
The foregoing description only is the example application that the present invention defrosts, and the air-conditioner of other form can realize equally, such as monoblock type heat pump type air conditioner etc., and also should be within the present invention's scope required for protection.
Claims (4)
1. defrosting frequency conversion heat pump air-conditioner, comprise indoor set (20) and off-premises station (10), off-premises station (10) comprises condenser (1), fan (2), commutation cross valve (3), throttle mechanism (5) and compressor (8), wherein said condenser (1) one end is by connecting pipe (7), throttle mechanism (5) is connected with indoor set (20), the other end connects compressor (8) and indoor set (20) through cross valve (3), between indoor set (20) and condenser (1) and cross valve (3), be equipped with stop valve (6), between throttle mechanism (5) and condenser (1), be provided with connecting pipe (7), it is characterized in that: between throttle mechanism (5) and condenser (1), be provided with pipeline heater (4).
2. defrosting frequency conversion heat pump air-conditioner according to claim 1 is characterized in that: described pipeline heater (4) is installed on the connecting pipe (7).
3. defrosting frequency conversion heat pump air-conditioner according to claim 1 is characterized in that: the mode of heating of described pipeline heater (4) is resistance wire heating, electromagnetism heating or PTC heating.
4. according to each described defrosting frequency conversion heat pump air-conditioner among the claim 1-3, it is characterized in that: the compressor of described compressor (8) for having the frequency control function.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100909839A CN102147177A (en) | 2011-04-12 | 2011-04-12 | Air conditioner for defrost and variable-frequency heat pump |
| PCT/CN2012/070394 WO2012139429A1 (en) | 2011-04-12 | 2012-01-16 | Defrosting and frequency variable heat pump/air conditioning apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100909839A CN102147177A (en) | 2011-04-12 | 2011-04-12 | Air conditioner for defrost and variable-frequency heat pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102147177A true CN102147177A (en) | 2011-08-10 |
Family
ID=44421561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100909839A Pending CN102147177A (en) | 2011-04-12 | 2011-04-12 | Air conditioner for defrost and variable-frequency heat pump |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102147177A (en) |
| WO (1) | WO2012139429A1 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012139429A1 (en) * | 2011-04-12 | 2012-10-18 | 海信科龙电器股份有限公司 | Defrosting and frequency variable heat pump/air conditioning apparatus |
| CN103256677A (en) * | 2013-06-08 | 2013-08-21 | 余永吉 | Method and device for defrosting and heating of air conditioner in winter |
| CN103388944A (en) * | 2013-08-02 | 2013-11-13 | 广东美的制冷设备有限公司 | Air-conditioning system and control method thereof |
| CN103925673A (en) * | 2013-01-11 | 2014-07-16 | 邯郸美的制冷设备有限公司 | Defrosting control method of air-conditioner |
| CN104791969A (en) * | 2015-04-30 | 2015-07-22 | 广东美的制冷设备有限公司 | Temperature compensation device and air-conditioner |
| CN105423447A (en) * | 2015-12-10 | 2016-03-23 | 广东志高空调有限公司 | Outdoor unit used for heat pump type air conditioner and heat pump type air conditioner |
| CN108759154A (en) * | 2018-07-02 | 2018-11-06 | 广东纽恩泰新能源科技发展有限公司 | A kind of heat pump system with heating defrosting function |
| CN109668219A (en) * | 2018-11-27 | 2019-04-23 | 珠海格力电器股份有限公司 | Condenser of outdoor unit of air conditioner, air conditioner and defrosting method |
| CN110360689A (en) * | 2019-07-29 | 2019-10-22 | 青岛海尔空调器有限总公司 | Electromagnetic heating device, fluid pipeline and temperature adjusting equipment |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106642793A (en) * | 2017-03-08 | 2017-05-10 | 王维洲 | Multifunctional air source heat pump unit capable of uninterrupted heating |
| CN108386960B (en) * | 2018-01-22 | 2024-04-26 | 青岛海尔空调器有限总公司 | Non-stop defrosting air conditioner and non-stop defrosting method |
| CN113251474A (en) * | 2021-04-28 | 2021-08-13 | 青岛海尔空调器有限总公司 | Air conditioner with double compressors |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1389693A (en) * | 2001-06-06 | 2003-01-08 | 邓兆山 | Auxiliary heat pipe heater unit for heat-pump air conditioner |
| CN2809531Y (en) * | 2005-06-27 | 2006-08-23 | 海尔集团公司 | Low temperature heat pump air conditioner |
| CN201387080Y (en) * | 2009-04-21 | 2010-01-20 | 海信（山东）空调有限公司 | Cold-heat frequency-conversion air conditioner |
| CN202002245U (en) * | 2011-04-12 | 2011-10-05 | 海信科龙电器股份有限公司 | Defrosting variable-frequency heat pump air conditioner |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000146373A (en) * | 1998-11-16 | 2000-05-26 | Funai Electric Co Ltd | Defroster for air conditioner |
| JP2004251567A (en) * | 2003-02-21 | 2004-09-09 | Fujitsu General Ltd | Air conditioner |
| CN100562697C (en) * | 2005-06-27 | 2009-11-25 | 海尔集团公司 | Low-temperature heat pump air conditioner and automatic defrosting method thereof |
| CN102147177A (en) * | 2011-04-12 | 2011-08-10 | 海信科龙电器股份有限公司 | Air conditioner for defrost and variable-frequency heat pump |
-
2011
- 2011-04-12 CN CN2011100909839A patent/CN102147177A/en active Pending
-
2012
- 2012-01-16 WO PCT/CN2012/070394 patent/WO2012139429A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1389693A (en) * | 2001-06-06 | 2003-01-08 | 邓兆山 | Auxiliary heat pipe heater unit for heat-pump air conditioner |
| CN2809531Y (en) * | 2005-06-27 | 2006-08-23 | 海尔集团公司 | Low temperature heat pump air conditioner |
| CN201387080Y (en) * | 2009-04-21 | 2010-01-20 | 海信（山东）空调有限公司 | Cold-heat frequency-conversion air conditioner |
| CN202002245U (en) * | 2011-04-12 | 2011-10-05 | 海信科龙电器股份有限公司 | Defrosting variable-frequency heat pump air conditioner |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012139429A1 (en) * | 2011-04-12 | 2012-10-18 | 海信科龙电器股份有限公司 | Defrosting and frequency variable heat pump/air conditioning apparatus |
| CN103925673A (en) * | 2013-01-11 | 2014-07-16 | 邯郸美的制冷设备有限公司 | Defrosting control method of air-conditioner |
| CN103256677A (en) * | 2013-06-08 | 2013-08-21 | 余永吉 | Method and device for defrosting and heating of air conditioner in winter |
| CN103388944A (en) * | 2013-08-02 | 2013-11-13 | 广东美的制冷设备有限公司 | Air-conditioning system and control method thereof |
| CN104791969A (en) * | 2015-04-30 | 2015-07-22 | 广东美的制冷设备有限公司 | Temperature compensation device and air-conditioner |
| CN104791969B (en) * | 2015-04-30 | 2017-10-13 | 广东美的制冷设备有限公司 | Temperature compensation means and air conditioner |
| CN105423447A (en) * | 2015-12-10 | 2016-03-23 | 广东志高空调有限公司 | Outdoor unit used for heat pump type air conditioner and heat pump type air conditioner |
| CN108759154A (en) * | 2018-07-02 | 2018-11-06 | 广东纽恩泰新能源科技发展有限公司 | A kind of heat pump system with heating defrosting function |
| CN109668219A (en) * | 2018-11-27 | 2019-04-23 | 珠海格力电器股份有限公司 | Condenser of outdoor unit of air conditioner, air conditioner and defrosting method |
| CN109668219B (en) * | 2018-11-27 | 2023-06-16 | 珠海格力电器股份有限公司 | Air conditioner outdoor unit condenser, air conditioner and defrosting method |
| CN110360689A (en) * | 2019-07-29 | 2019-10-22 | 青岛海尔空调器有限总公司 | Electromagnetic heating device, fluid pipeline and temperature adjusting equipment |
| WO2021017248A1 (en) * | 2019-07-29 | 2021-02-04 | 青岛海尔空调器有限总公司 | Electromagnetic heating apparatus, fluid pipeline, and temperature adjustment device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012139429A1 (en) | 2012-10-18 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110810 |