CN201954862U - Split air conditioner with defrosting function - Google Patents

Split air conditioner with defrosting function Download PDF

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Publication number
CN201954862U
CN201954862U CN2011200935171U CN201120093517U CN201954862U CN 201954862 U CN201954862 U CN 201954862U CN 2011200935171 U CN2011200935171 U CN 2011200935171U CN 201120093517 U CN201120093517 U CN 201120093517U CN 201954862 U CN201954862 U CN 201954862U
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CN
China
Prior art keywords
valve
pipe
defrost
air conditioner
compressor
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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.)
Expired - Fee Related
Application number
CN2011200935171U
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Chinese (zh)
Inventor
张先雄
王开发
张先强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TCL Air Conditioner Zhongshan Co Ltd
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TCL Air Conditioner Zhongshan Co Ltd
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Publication date
Application filed by TCL Air Conditioner Zhongshan Co Ltd filed Critical TCL Air Conditioner Zhongshan Co Ltd
Priority to CN2011200935171U priority Critical patent/CN201954862U/en
Application granted granted Critical
Publication of CN201954862U publication Critical patent/CN201954862U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a split air conditioner with a defrosting function. The split air conditioner comprises a compressor, a four-way valve, a condenser, an indoor side heat exchanger, an outdoor side heat exchanger and a capillary pipe, wherein a first valve port of the four-way valve is connected with an exhaust pipe of the compressor; a second valve port of the four-way valve is connected with the indoor side heat exchanger; a third valve port of the four-way valve is connected with a muffler of the compressor; a fourth valve port of the four-way valve is connected with the outdoor side heat exchanger; a defrosting switching pipeline and a flow direction control switch are arranged between the compressor and the first valve port of the four-way valve; the defrosting switching pipeline consists of a defrosting pipe and a run-through pipe which are connected with each other in parallel; and the flow direction control switch is used for connecting the defrosting pipe or the run-through pipe to the compressor and the first valve port of the four-way valve in an alternate mode. In the utility model, the defrosting pipe is additionally arranged on the base plate of the outdoor unit, even if the air conditioner heats under a low-temperature environment, a frost layer/ice layer on an air conditioner base plate can be quickly melted.

Description

The split-type air conditioner of band defrost function
Technical field
The utility model relates to the air-conditioning technique field, more particularly, relates to a kind of split-type air conditioner with the defrost function.
Background technology
In the prior art, pump type heat family expenses room air conditioner is to adopt air-cooled cold face temperature etc.When air was flowed through heat exchanger, if when the coil temperature of outdoor heat exchanger is lower than the dew-point temperature of air, airborne moisture will be separated out and be attached to coil surface and be formed the frost layer.The temperature difference between coil surface and the intake air is big more, and frosting speed is fast more, and frosting is also serious more.Along with the formation of frost layer, the heating capacity of air-conditioning descends.When air-conditioning reached the defrosting condition, the starting of air conditioner defrosting mode was with the white stratification Cheng Shui that condenses on the condenser.Water flows on the chassis along condenser, discharges from the osculum on chassis.When the air-conditioner defrosting pattern finished, the water on the chassis did not often drain only.When air-conditioning moved heating mode once more, when the frost of lowermost copper pipe of condenser or fin surface contacted with the water on the chassis, the water on the chassis will condense into ice sheet.The air-conditioning long-play will be tied the thick ice of one deck on the chassis.When air-conditioning reached the defrosting condition once more, the frost on the air-conditioning condenser changed into water and flows on the chassis, and it is clean that the ice sheet on the chassis is difficult to quiltization, and the ice cube of Rong Huaing can not blocked the chassis delivery port, makes that the water on the off-premises station chassis can not be got rid of.When air-conditioning during sub-zero environmental work, the water of failing to exclude will soon condense into ice cube and be attached to the condenser bottom.Water on the condenser can not be smoothly discharged towards the chassis, very fast up frosting rapidly under the condenser.The quick increase of the defrosting time of air-conditioning and defrosting number of times, heating capacity sharply descends, thereby can not guarantee the temperature that the room is indoor.
The utility model content
The utility model purpose is to provide a kind of split-type air conditioner with the defrost function, make air-conditioning when the low temperature environment startup heats, can melt the ice sheet on the chassis fast, thereby make that flowing on the chassis water can get rid of fast swimmingly, alleviated the frosting degree of condenser, reduce the defrosting time and defrosting number of times of air-conditioning, improve the heating capacity of air-conditioning.
The technical scheme that the utility model adopted is: a kind of split-type air conditioner with the defrost function, comprise compressor, cross valve, condenser, indoor heat exchanger, outdoor heat exchanger, capillary, first valve port of described cross valve connects the blast pipe of compressor, second valve port of cross valve connects indoor heat exchanger, the 3rd valve port of cross valve connects the muffler of compressor, the 4th valve port of cross valve connects outdoor heat exchanger, between first valve port of described compressor and cross valve, be provided with defrost conversion pipeline and flow to gauge tap, the defrost pipe of described defrost crossover connection route parallel connection and straight pipe constitute, and the described gauge tap that flows to makes defrost pipe or straight pipe connect first valve port of described compressor and cross valve in the mode of selecting.
In the split-type air conditioner of above-mentioned band defrost function, described defrost pipe is located at the below of outdoor heat exchanger.
In the split-type air conditioner of above-mentioned band defrost function, described defrost pipe is located on the chassis of off-premises station.
In the split-type air conditioner of above-mentioned band defrost function, be provided with auxilliary capillary between described indoor heat exchanger and the capillary, described auxilliary both sides capillaceous are provided with bypass line, and bypass line is provided with check valve.
In the split-type air conditioner of above-mentioned band defrost function, the described gauge tap that flows to is a three-way magnetic valve.
In the split-type air conditioner of above-mentioned band defrost function, the described gauge tap that flows to comprises the magnetic valve that is located at respectively on defrost pipe, the straight pipe.
The beneficial effects of the utility model are:
1) because the utility model has increased a defrost pipe on the off-premises station chassis.Even when air-conditioning heats under low temperature environment, also can melt the frost layer/ice sheet on the air-conditioning chassis apace, thus the feasible water that flows on the chassis can get rid of smoothly fast, alleviated the frosting degree of condenser, reduce defrosting time and defrosting number of times, improve the heating capacity of air-conditioning.
2) when opening the refrigeration mode of air-conditioning summer, the defrost pipe on the chassis can increase the degree of supercooling of air-conditioning system, can improve the heat exchange effect.
Description of drawings
Fig. 1 is the refrigerant system configurations schematic diagram of air-conditioning of the present utility model at the indoor set refrigerating state;
Fig. 2 is air-conditioning of the present utility model heats state at indoor set a refrigerant system configurations schematic diagram.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Referring to Fig. 1, Fig. 2, a kind of split-type air conditioner with the defrost function of the present utility model comprises compressor 5, cross valve 6, indoor heat exchanger 1, outdoor heat exchanger 7, capillary 8.First valve port 61 of cross valve 6 connects the blast pipe of compressor 5, second valve port 62 of cross valve 6 connects indoor heat exchanger 1, the 3rd valve port 63 of cross valve 6 connects the muffler of compressor 5, the 4th valve port 64 of cross valve 6 connects outdoor heat exchanger 7, be provided with defrost pipe 3 and magnetic valve (2 between first valve port 61 of compressor 5 and cross valve 6, only select a passage to make defrost pipe 3 or straight pipe connect first valve port 61 of compressor 5 and cross valve 6 when 4), magnetic valve (2,4) is worked.Wherein the defrost pipe is arranged on the air-conditioner outdoor unit chassis.
Compressor 5 air exits of heat-pump air-conditioner also connect two streams, and a stream directly flows to cross valve 6, and another stream flows to defrost pipe 3 earlier and flows to cross valve 6 again.Article two, stream is distinguished series electrical magnet valve 4 and magnetic valve 2, by the unlatching and the closure of two these two streams of solenoid control.Two magnetic valves are by its action of interior dynamo-electric control component controls.When air-conditioning was closed, magnetic valve 4 was in normally off and magnetic valve 2 is in normally open.When air-conditioning was opened refrigeration mode, magnetic valve 2 was in opening, and magnetic valve 4 is in closure state.The air-conditioning refrigerant circular flow is to as shown in Figure 1: compressor 5 → defrost pipe 3 → cross valve 6 → outdoor heat exchanger 7 → capillary 8 → check valve 9 → indoor heat exchanger 1 → cross valve 6 → compressor 5.When summer, air-conditioning was opened refrigeration mode, the gaseous state superheated refrigerant of the high pressure-temperature of discharging from compressor 5 was introduced into defrost pipe 3 and carries out heat exchange, flows into condenser again.This process is cooled off the cold-producing medium of HTHP and step-down, improves the heat exchange efficiency and the degree of supercooling of condenser, thereby improves refrigerating capacity and Energy Efficiency Ratio.Winter, the low temperature environment air-conditioning was opened when heating, and interior dynamo-electric control component controls magnetic valve 2 makes it be in closure state, control magnetic valve 4 is in opening.The air-conditioning refrigerant circular flow is to as shown in Figure 2: compressor 5 → cross valve 6 → indoor heat exchanger 1 → check valve 9 → capillary 8 → outdoor heat exchanger 7 → cross valve 6 → compressor 5.When air-conditioning reaches the defrosting condition, to stop inside and outside fan electromotor and transfer refrigeration mode to, interior simultaneously dynamo-electric control control opens solenoid valve 2 is closed magnetic valve 4.The air-conditioning refrigerant circular flow is to as shown in Figure 1: compressor 5 → defrost pipe 3 → cross valve 6 → outdoor heat exchanger 7 → capillary 8 → check valve 9 → indoor heat exchanger 1 → cross valve 6 → compressor 5.The gaseous refrigerant of HTHP flows to defrost pipe 3 from compressor 5 exhaust outlets, make the ice sheet on the chassis change into water rapidly, discharge from the discharge orifice, chassis, guaranteed that the defrost water on the condenser can flow to the osculum discharge on chassis smoothly, alleviated the frosting degree of condenser, reduce defrosting time and defrosting number of times, improve the heating capacity of air-conditioning.

Claims (6)

1. split-type air conditioner with the defrost function, comprise compressor (5), cross valve (6), indoor heat exchanger (1), outdoor heat exchanger (7), capillary (8), first valve port (61) of described cross valve (6) connects the blast pipe of compressor (5), second valve port (62) of cross valve (6) connects indoor heat exchanger (1), the 3rd valve port (63) of cross valve (6) connects the muffler of compressor (5), the 4th valve port (64) of cross valve (6) connects outdoor heat exchanger (7), it is characterized in that: between first valve port (61) of described compressor (5) and cross valve (6), be provided with defrost conversion pipeline and flow to gauge tap, the defrost pipe (3) of described defrost crossover connection route parallel connection and straight pipe constitute, and the described gauge tap that flows to makes defrost pipe (3) or straight pipe connect first valve port (61) of described compressor (5) and cross valve (6) in the mode of selecting.
2. the split-type air conditioner of band defrost function according to claim 1 is characterized in that: described defrost pipe (3) is located at the below of outdoor heat exchanger (7).
3. the split-type air conditioner of band defrost function according to claim 2 is characterized in that: described defrost pipe (3) is located on the chassis of off-premises station.
4. the split-type air conditioner of band defrost function according to claim 3, it is characterized in that: be provided with auxilliary capillary between described indoor heat exchanger (1) and the capillary (8), described auxilliary both sides capillaceous are provided with bypass line, and bypass line is provided with check valve (9).
5. according to the split-type air conditioner of claim 1 or 2 or 3 or 4 described band defrost functions, it is characterized in that: the described gauge tap that flows to is a three-way magnetic valve.
6. according to the split-type air conditioner of claim 1 or 2 or 3 or 4 described band defrost functions, it is characterized in that: the described gauge tap that flows to comprises the magnetic valve that is located at respectively on defrost pipe (3), the straight pipe.
CN2011200935171U 2011-04-01 2011-04-01 Split air conditioner with defrosting function Expired - Fee Related CN201954862U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011200935171U CN201954862U (en) 2011-04-01 2011-04-01 Split air conditioner with defrosting function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011200935171U CN201954862U (en) 2011-04-01 2011-04-01 Split air conditioner with defrosting function

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CN201954862U true CN201954862U (en) 2011-08-31

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105004111A (en) * 2014-04-25 2015-10-28 Tcl空调器(中山)有限公司 Air-conditioning system with defrosting function and control method of air-conditioning system
CN108844266A (en) * 2018-09-12 2018-11-20 珠海格力电器股份有限公司 Air-conditioning system
CN110608512A (en) * 2019-09-17 2019-12-24 珠海格力电器股份有限公司 Air conditioner control method and device, air conditioner and water pan assembly

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105004111A (en) * 2014-04-25 2015-10-28 Tcl空调器(中山)有限公司 Air-conditioning system with defrosting function and control method of air-conditioning system
CN105004111B (en) * 2014-04-25 2017-07-28 Tcl空调器(中山)有限公司 Air-conditioning system and its control method with defrosting function
CN108844266A (en) * 2018-09-12 2018-11-20 珠海格力电器股份有限公司 Air-conditioning system
CN110608512A (en) * 2019-09-17 2019-12-24 珠海格力电器股份有限公司 Air conditioner control method and device, air conditioner and water pan assembly

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110831

Termination date: 20140401