CN100432566C - Device of air conditioner outdoor unit for preventing drained water from freezing - Google Patents
Device of air conditioner outdoor unit for preventing drained water from freezing Download PDFInfo
- Publication number
- CN100432566C CN100432566C CNB2004100199064A CN200410019906A CN100432566C CN 100432566 C CN100432566 C CN 100432566C CN B2004100199064 A CNB2004100199064 A CN B2004100199064A CN 200410019906 A CN200410019906 A CN 200410019906A CN 100432566 C CN100432566 C CN 100432566C
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- outdoor heat
- drainage channel
- outdoor unit
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- air
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Abstract
The present invention relates to a device for an outdoor unit of an air conditioner for preventing drained water from being frozen, which is arranged in an outdoor unit of an air conditioner, and the outdoor unit comprises a casing with a base plate, and a plurality of outdoor heat exchangers, wherein a groove-shaped drainage channel is arranged along the peripheral edge of the base plate, and a plurality of drainage holes which pass through the bottom surface of the drainage channel are arranged; the outdoor heat exchangers are arranged in an opening of the casing along the external side of the drainage channel of the base plate; the lower ends of the outdoor heat exchangers are provided with supercooling ends which can carry out supercooling coolants flowing from indoor units. The device for preventing drained water from being frozen is arranged along the drainage channel on the base plate and enables a part of high temperature coolants which flow into the outdoor heat exchangers to flow through, so the drained water can be prevented from being frozen. The device for an outdoor unit of an air conditioner for preventing drained water from being frozen in the present invention enables a part of high temperature coolants which flow into the supercooling ends of the outdoor heat exchangers from the indoor unit to flow along drainage pipes used for preventing drained water from being frozen and are arranged in the water discharge channel, so the present invention prevents drained water from being frozen and makes drainage smooth.
Description
Technical field
The present invention relates to a kind of air-conditioner outdoor unit, what particularly relate to a kind of air-conditioner outdoor unit prevents the draining device that freezes.
Background technology
Usually, air-conditioner can be divided into haply with off-premises station and off-premises station be arranged on one in the casing package AC plant and compressor and condenser be arranged in the outdoor casing as off-premises station, and evaporimeter is arranged in the indoor casing detachable air conditioner as indoor set.Recently, because market is more and more higher for the refrigerating capacity requirement of detachable air conditioner, therefore a plurality of compressors on the off-premises station of Air Conditioner, have been equipped with, so that satisfy various refrigeration requirements effectively.Fig. 1 is the air-conditioner outdoor unit front opening three-dimensional structure diagram of prior art.Fig. 2 is the air-conditioner outdoor unit horizontal cross of prior art.Fig. 3 is the air-conditioner outdoor unit drainage channel cross section partial structurtes amplification stereogram of prior art.As shown in Figure 1 to Figure 3, the air-conditioner outdoor unit of this prior art comprises: inside is formed with spatial accommodation, and the side is provided with the cuboid casing 110 of hatch frame; Be arranged on shared gas-liquid separator 120 and a plurality of compressor 130 of casing 110 inside; With the outdoor heat converter 140 that is provided with and can makes the refrigerant that flows in it and extraneous air to carry out heat exchange along the inside edge of casing 110.Described casing 110 comprises: have rectangle structure and be arranged on the bottom to support the chassis 111 of devices such as shared gas-liquid separator 120, compressor 130 and outdoor heat converter 140; Have rectangle structure and keep a determining deviation and side's disposed thereon top board 115 with chassis 111; Be arranged on a plurality of munnions 114 between chassis 111 and the top board 115 along the vertical direction.The plate face that runs through top board 115 is provided with hatch frame, and is respectively equipped with in each opening and can promotes outdoor heat converter 140 to carry out a plurality of blowing fans 150 of heat exchange by vent the air overboard.On chassis 111, be provided with a plurality of outdoor heat converters 140, and a pair of compressor 130 be installed in the inside of outdoor heat converter 140 and can be the shared gas-liquid separator 120 that each compressor 130 provides gaseous coolant along two sides of casing 110 and the inside edge of back.In addition, the lower inside along outdoor heat converter 140 is provided with when defrosting and can will dissolves the defrost water of back drippage from outdoor heat converter 140 or flow into the snow-broth of casing 110 inside and groove shape drainage channel 112 that utilizes the formation of extrusion forming method that rainwater discharges and a plurality of osculums 113 that run through drainage channel 112 bottom surfaces.When the air-conditioner of this prior art heated operation, the high pressure refrigerant that flows out from not shown indoor set can reduce pressure by the outdoor expansion valve of not shown off-premises station 100 and expand, then the inside of inlet chamber outer heat-exchanger 140.The low temperature liquid refrigerant of inflow outdoor heat exchanger 140 inside can carry out heat exchange and absorb heat with the low temperature chamber outer air that flows in the casing 110 under the effect of blowing fan 150, thereby becomes the cryogenic gaseous refrigerant.Subsequently, the cryogenic gaseous refrigerant can carry out gas-liquid separation in shared gas-liquid separator 120, and the inside that flows into each compressor 130 with the state of pure gas is compressed and become the high-temperature gas refrigerant then, flows at last in the indoor set and circulates repeatedly.In this process, moisture in the outdoor air will be in the surperficial frosting of outdoor heat converter 140, will reduce the heat exchange efficiency of outdoor heat converter 140 like this, therefore need at regular intervals usually once to defrost, to remove the frost on outdoor heat converter 140 surfaces.At this moment, from the defrost water of outdoor heat converter 140 surface drippage will the inflow outdoor heat exchanger 140 inboard groove shape drainage channels 112 that are provided with in, and be discharged to the outside of off-premises station 100 by the osculum 113 that runs through drainage channel 112 bottom surfaces.But, when the outside air temperature in winter drops to below 5～7 ℃, remain in osculum 113 defrost water on every side and will begin to freeze, block osculum 113 the most at last, therefore the defrost water that produces in defrost process subsequently can't normally be discharged.Along with the icing amount around the osculum 113 is more and more, might cover the bottom of outdoor heat converter 140 at last.
Summary of the invention
In order to address the above problem, the object of the present invention is to provide a kind of defrost water that produces can be by the smooth and easy discharge defrosting of drainage channel and osculum the time air-conditioner outdoor unit prevent the draining device that freezes.
In order to achieve the above object, the draining device that freezes that prevents of air-conditioner outdoor unit provided by the invention is arranged on and comprises having a chassis, and the neighboring along the chassis is formed with groove shape drainage channel, and runs through the casing that the drainage channel bottom surface is provided with a plurality of osculums; With along the drainage channel arranged outside on chassis in shell opening, and the lower end is provided with can carry out the air-conditioner outdoor unit of overcooled a plurality of outdoor heat converters of cold junction excessively to the refrigerant that flows into from indoor set, the described icing device of draining that prevents is along the drainage channel setting on the chassis, it can make a part of high temperature refrigerant of inflow outdoor heat exchanger flow through, and can prevent that thus freezing from appearring in draining; The described draining device that freezes that prevents comprises: two ends respectively with the crossing the cold junction suction line and be connected of outdoor heat converter the time with the heat exchanger efferent duct along the pipeline that freezes that prevents of drainage channel setting; And be separately positioned on the controlled valve at the pipeline two ends that prevent to freeze.
The described two ends of icing pipeline that prevent are connected crossing on cold junction suction line and the heat exchanger efferent duct of other outdoor heat converter.
Air-conditioner outdoor unit provided by the invention prevent that the draining device that freezes from being that preventing of making that a part of high temperature refrigerant of crossing cold junction from indoor set and compressor inflow outdoor heat exchanger is provided with in the drainage channel pipeline that freezes flows, can prevent that thus freezing from appearring in draining, and can make draining more smooth and easy.
Description of drawings
Be elaborated below in conjunction with the icing device of draining that prevents of the drawings and specific embodiments to air-conditioner outdoor unit provided by the invention.
Fig. 1 is the air-conditioner outdoor unit front opening three-dimensional structure diagram of prior art.
Fig. 2 is the air-conditioner outdoor unit horizontal cross of prior art.
Fig. 3 is the air-conditioner outdoor unit drainage channel cross section partial structurtes amplification stereogram of prior art.
Fig. 4 has the air-conditioner outdoor unit front opening three-dimensional structure diagram that prevents the icing device of draining of the present invention.
Fig. 5 analyses and observe three-dimensional structure diagram for air-conditioner outdoor unit level of the present invention.
Fig. 6 is provided with the air-conditioner outdoor unit horizontal cross that prevents the icing device of draining of the present invention.
Accompanying drawing critical piece label:
1: off-premises station 10: casing
11: chassis 12: drainage channel
13: osculum 16: prevent the pipeline that freezes
21,18: controlled valve 20: shared gas-liquid separator
30: compressor 40: outdoor heat converter
41: cross cold junction suction line 44: the heat exchanger efferent duct
The specific embodiment
To shown in Figure 6, air-conditioner outdoor unit provided by the invention comprises: inside is formed with spatial accommodation, and the side is provided with the cuboid casing 10 of hatch frame as Fig. 4; Be arranged on the inside of casing 10 and a plurality of compressors 30 of compressible refrigerant; With in the opening that is arranged on casing 10 and can make the refrigerant of its internal flow and the outdoor heat converter 40 that extraneous air carries out heat exchange.Described casing 10 comprises: have rectangle structure and be arranged on the chassis 11 of bottom with devices such as supports compressor 30 and outdoor heat converters 40; With chassis 11 mutually across a certain distance and side's disposed thereon top board 15; Be arranged on a plurality of munnions 14 between chassis 11 and the top board 15 along the vertical direction.The plate face that runs through top board 15 is provided with hatch frame, and is provided with respectively in each opening and can promotes outdoor heat converter 40 to carry out a plurality of blowing fans 50 of heat exchange by discharging air to the outside.On chassis 11, be provided with a plurality of outdoor heat converters 40, and a pair of compressor 30 be installed in the inboard center of outdoor heat converter 40 and can be the shared gas-liquid separator 20 that each compressor 30 provides gaseous coolant along two sides of casing 10 and the inside edge of back.In addition, the lower inside along outdoor heat converter 40 is provided with when defrosting and can will dissolves the defrost water of back drippage from outdoor heat converter 40 or flow into the snow-broth of casing 10 inside and groove shape drainage channel 12 that utilizes the formation of extrusion forming method that rainwater discharges and a plurality of osculums 13 that run through drainage channel 12 bottom surfaces.Described outdoor heat converter 40 comprises: at a distance of the fin 46 of determining deviation setting; The above round refrigerant pipe 47 that runs through each fin 46 of one row; With the distributor 45 that can will distribute from the refrigerant that not shown indoor set and each compressor 30 flow into according to the operating condition of each refrigerant pipe 47.What particularly point out is, is provided with the cold junction of crossing of one to two row in the lower end of outdoor heat converter 40, can carry out supercooling to the refrigerant that flows into thus when heating operation.For freezing appears in discharge process in the defrost water that prevents to produce in the defrost operation, also be provided with in the drainage channel 12 can make and prevent the draining device that freezes from what a part of high temperature refrigerant of not shown indoor set and compressor 30 inflow outdoor heat exchangers 40 flow through.The described draining device that freezes that prevents comprises: two ends prevent the pipeline 16 that freezes along what drainage channel 12 was provided with respectively with the crossing cold junction suction line 41 and be connected with heat exchanger efferent duct 44 of outdoor heat converter 40 time; And be separately positioned on the controlled valve 21,18 at pipeline 16 two ends that prevent to freeze.In order to be provided with conveniently, prevent that the two ends of icing pipeline 16 should be connected crossing on cold junction suction line 41 and the heat exchanger efferent duct 44 of other outdoor heat converter 40.There is not the symbol 42 of explanation to represent the cold junction efferent duct among the figure, 43 expression heat exchanger suction lines then.Air-conditioner outdoor unit provided by the invention prevent that the draining device course of work of freezing is as follows: when air-conditioner heats operation, heat the refrigerant that then flows in the off-premises station 1 in the unshowned in the drawings indoor set and can flow into the cold junction of crossing that is arranged on outdoor heat converter 40 belows along crossing cold junction suction line 41, the refrigerant that becomes supercooled state in this process will reduce pressure by not shown outdoor expansion valve and expand along crossing cold junction efferent duct 42, also flow into the inside of each refrigerant pipe 47 then by distributor 45 by heat exchanger suction line 43, this low temperature liquid refrigerant can carry out heat exchange and absorb heat with the low temperature chamber outer air that flows into casing 10 inside under the effect of blowing fan 50, thereby become cryogenic gaseous, this refrigerant flows into the inside of shared gas-liquid separator 20 then by heat exchanger efferent duct 44.The inside that will flow into each compressor 30 with the state of pure gas when the cryogenic gaseous refrigerant carries out gas-liquid separation in shared gas-liquid separator 20 after is compressed, and exports the inside of not shown indoor set at last to along efferent duct.At this moment, the outdoor air that flows into casing 10 inside under the effect of blowing fan 50 can carry out heat exchange with outdoor heat converter 40, can make the surperficial frosting of outdoor heat converter 40 thus, will reduce the heat exchange efficiency of outdoor heat converter 40 like this, therefore in order to remove the frost on outdoor heat converter 40 surfaces, need to carry out defrost operation at regular intervals.When outside air temperature drops to below 5～7 ℃, the defrost water that produces in the defrost process can begin to freeze in the process that flows along drainage channel 12 and discharged by osculum 13, the result blocks osculum 13 the most at last, in order to prevent that the phenomenon of freezing from appearring in draining, can adopt in the present invention controlled valve 21,18 open, thereby make when heating operation cold junction and temperature flow through the pipeline 16 that prevents to freeze at least at a part of high temperature refrigerant of 20～30 ℃ the method for crossing from not shown indoor set inflow outdoor heat exchanger 40.And, when controlled valve 18 is opened, the high-temperature gas refrigerant of compressed machine 30 compressions can flow into the inside that prevents icing pipeline 16 by heat exchanger efferent duct 44 in the defrost operation process, flow to then in the cold junction suction line 41 excessively of other outdoor heat converter 40, can prevent that thus the phenomenon of freezing from appearring in draining.
Claims (2)
1, a kind of air-conditioner outdoor unit prevents the draining device that freezes, be arranged on and comprise having a chassis (11), and the neighboring of (11) is formed with groove shape drainage channel (12) along the chassis, and runs through the casing (10) that drainage channel (12) bottom surface is provided with a plurality of osculums (13); With along drainage channel (12) arranged outside of chassis (11) in the opening of casing (10) and the lower end be provided with the air-conditioner outdoor unit (1) that can carry out overcooled a plurality of outdoor heat converters (40) of crossing cold junction the refrigerant that flows into from indoor set, the described icing device of draining that prevents is provided with along the drainage channel (12) on chassis (11), it can make a part of high temperature refrigerant of inflow outdoor heat exchanger (40) flow through, and can prevent that thus freezing from appearring in draining; It is characterized in that: the described draining device that freezes that prevents comprises: two ends prevent icing pipeline (16) along what drainage channel (12) was provided with cross cold junction suction line (41) and the heat exchanger efferent duct (44) of outdoor heat converter (40) when being connected respectively; And be separately positioned on the controlled valve (21,18) at pipeline (16) two ends that prevent to freeze.
2, air-conditioner outdoor unit according to claim 1 prevent the draining device that freezes, it is characterized in that: the two ends of the described pipeline (16) that prevents to freeze are connected crossing on cold junction suction line (41) and the heat exchanger efferent duct (44) of other outdoor heat converter (40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100199064A CN100432566C (en) | 2004-07-08 | 2004-07-08 | Device of air conditioner outdoor unit for preventing drained water from freezing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100199064A CN100432566C (en) | 2004-07-08 | 2004-07-08 | Device of air conditioner outdoor unit for preventing drained water from freezing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1719145A CN1719145A (en) | 2006-01-11 |
| CN100432566C true CN100432566C (en) | 2008-11-12 |
Family
ID=35931046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100199064A Expired - Fee Related CN100432566C (en) | 2004-07-08 | 2004-07-08 | Device of air conditioner outdoor unit for preventing drained water from freezing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100432566C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4892713B2 (en) * | 2008-08-25 | 2012-03-07 | シャープ株式会社 | Air conditioner |
| JP6907964B2 (en) * | 2018-01-31 | 2021-07-21 | ダイキン工業株式会社 | Outdoor unit of air conditioner |
| CN109579151B (en) * | 2018-12-27 | 2023-09-08 | 珠海格力电器股份有限公司 | Chassis deicing structure, air conditioner and air conditioner deicing control method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6441781A (en) * | 1987-08-07 | 1989-02-14 | Toshiba Corp | Air conditioner |
| JPH07318108A (en) * | 1994-05-20 | 1995-12-08 | Fujitsu General Ltd | Outdoor unit for air conditioner |
| CN2407278Y (en) * | 2000-02-02 | 2000-11-22 | 海尔集团公司 | Outdoor unit of air conditioner |
| CN2407276Y (en) * | 2000-01-25 | 2000-11-22 | 海尔集团公司 | Casing bottom for outdoor unit of air conditioner |
| JP2002089930A (en) * | 2000-09-20 | 2002-03-27 | Fujitsu General Ltd | Air conditioner |
-
2004
- 2004-07-08 CN CNB2004100199064A patent/CN100432566C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6441781A (en) * | 1987-08-07 | 1989-02-14 | Toshiba Corp | Air conditioner |
| JPH07318108A (en) * | 1994-05-20 | 1995-12-08 | Fujitsu General Ltd | Outdoor unit for air conditioner |
| CN2407276Y (en) * | 2000-01-25 | 2000-11-22 | 海尔集团公司 | Casing bottom for outdoor unit of air conditioner |
| CN2407278Y (en) * | 2000-02-02 | 2000-11-22 | 海尔集团公司 | Outdoor unit of air conditioner |
| JP2002089930A (en) * | 2000-09-20 | 2002-03-27 | Fujitsu General Ltd | Air conditioner |
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| Publication number | Publication date |
|---|---|
| CN1719145A (en) | 2006-01-11 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| 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: 20081112 Termination date: 20110708 |