CN100455942C - Device of preventing drained water from freezing of air conditioner outdoor unit - Google Patents
Device of preventing drained water from freezing of air conditioner outdoor unit Download PDFInfo
- Publication number
- CN100455942C CN100455942C CNB2004100199238A CN200410019923A CN100455942C CN 100455942 C CN100455942 C CN 100455942C CN B2004100199238 A CNB2004100199238 A CN B2004100199238A CN 200410019923 A CN200410019923 A CN 200410019923A CN 100455942 C CN100455942 C CN 100455942C
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- outdoor unit
- drainage channel
- air conditioner
- outdoor
- heater
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Abstract
The present invention provides a device for preventing drained water from being frozen for an outdoor unit of an air conditioner, which comprises an outdoor unit casing, a base plate, an outdoor heat exchanger arranged along a peripheral frame in the casing, a water discharge channel arranged along the side of the lower part of the heat exchanger, a plurality of drain holes which is arranged on the water discharge channel and formed by penetrating through the bottom surface, a control box of the outdoor unit, and a heating device used for heating the discharged water and arranged along the bottom surface of the water discharge channel of the base plate. The present invention has the advantages that a plate-shaped heater is erected along the bottom surface of the water discharge channel of the device for preventing drained water from being frozen for an outdoor unit of an air conditioner and is started/stopped within a certain temperature range, so when the bottom surface of the water discharge channel is heated, the present invention prevents drained water from being frozen in the water discharge channel and the drain holes and prevents ice from piling up.
Description
Technical field
The invention relates to outdoor unit of air conditioner, particularly about preventing the device that discharge structure freezes that prevents of outdoor unit of air conditioner.
Background technology
Usually, air-conditioner is according to the composition mode of its unit, divide into haply with indoor set 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, evaporimeter is arranged on indoor detachable air conditioner as indoor set.
Recently,, therefore, in large-scale air-conditioner, on off-premises station, be equipped with several compressors, adapted to various refrigeration requirements effectively because market is more and more higher for the requirement of the refrigerating capacity of detachable air conditioner.
Below, off-premises station in the air-conditioner of accompanying drawings conventional art design.
Fig. 1 is the stereogram after the outdoor unit of air conditioner front of prior art design is opened, and Fig. 2 is the outdoor unit of air conditioner drainage channel section of structure of prior art design, and Fig. 3 is the local amplification stereogram in existing outdoor unit of air conditioner drainage channel cross section.
As shown in the figure, comprised in the off-premises station of air-conditioner in the past: the inner spatial accommodation that forms, the side is provided with the right angle hexahedron casing 110 of hatch frame; Be arranged on the shared gas-liquid separator 120 and the several compressors 130 of casing 110 inside; The outdoor heat converter 140 that the refrigerant that sets up along casing 110 interior peripheries carries out heat exchange.
Described casing 110 comprises: adopt tetragonal structure to be arranged on the chassis 111 of parts such as bottom support gas-liquid separator 120, compressor 130 and heat exchanger 140; Adopt tetragonal structure, maintain a certain distance the top board 115 of the top that is arranged on chassis 111; Several munnions 114 that are arranged on the above-below direction between chassis 111 and the top board 115 constitute.
On top board 115, run through the plate face and be provided with hatch frame, and in each open area, be provided with respectively, promote several Air Blast fans 150 of the heat exchange of outdoor heat converter 140 thus by send air to the outside.
On chassis 111, set up each outdoor heat converter 140 along the periphery of each side and back, and the shared gas-liquid separator 120 of a pair of compressor 130 being installed and gaseous coolant being provided to each compressor 130 in the inside of outdoor heat converter 140.
And being provided with the snow-broth of discharging the defrost water of dissolving the back drippage on the outdoor heat converter or flowing into casing 110 inside when defrosting running and the pressure forming of passing through of rainwater along the side of described outdoor heat converter 140 is the drainage channel 112 of groove and several osculums 113 that run through described drainage channel 112 bottom surfaces.By osculum 113 water of inside is discharged to the outside.
When the air-conditioner in the past that as above constitutes heats running, heat the HTHP refrigerant of back outflow behind outdoor expansion valve (not expression among the figure) at indoor set (not having expression among the figure) by off-premises station 100, decompression is also expanded, the inside of inlet chamber outer heat-exchanger 140, and the low temperature liquid refrigerant of inflow outdoor heat exchanger 140 inside is under the effect of Air Blast fan, carry out heat exchange and absorb heat with the outdoor air that flows into the low-temperature condition in the casing, become the cryogenic gaseous refrigerant.Then, the cryogenic gaseous refrigerant carries out gas-liquid separation in shared gas-liquid separator 120 after, flow into each compressor 130 inside with the state of pure gas and be compressed, high-temperature gas refrigerant (not expression among the figure) circulation repeatedly in indoor set thus.
This air-conditioner is in heating the process of running, moisture in the outdoor air will be in the surperficial frosting of outdoor heat converter 140, reduce the heat exchange efficiency of heat exchanger thus, therefore carry out the defrosting running of a period of time usually, remove the frost on heat exchanger 140 surfaces.
At this moment, the defrost water that outdoor heat converter 140 surfaces produce will flow in the recessed drainage channel 112 of outdoor heat converter 140 sides setting, and is discharged to the outside of off-premises station 100 by the osculum 113 that runs through drainage channel 112 bottom surfaces.
Winter air-conditioner heat in the process of running, when turning round in order to defrost to the outdoor heat converter defrosting, the defrost water that the defrosting back produces and osculum outflow by passage bottom on be provided with mobile along the drainage channel on the chassis, but because ambient temperature is low excessively, defrost water begins to freeze, and ice is blocked osculum easily thus.When the outside air temperature in winter drops to below 5～7 ℃, will begin to freeze by near the remaining defrost water the osculum 113, finally blocked osculum 113.Therefore, the defrost water that produces in the defrosting running subsequently just can't normally be discharged, and the icing amount around the osculum 113 can get more and more, the below of last covering chamber outer heat-exchanger.
Summary of the invention
In order to solve above problem, what the purpose of this invention is to provide a kind of outdoor unit of air conditioner prevents the discharge structure device that freezes, the defrost water that produces during discharge defrosting running that it can be by drainage channel and osculum smoothness.
In order to achieve the above object, what technical scheme of the present invention provided a kind of outdoor unit of air conditioner prevents the discharge structure device that freezes, its structure includes outdoor set cabinet, the chassis, along the outdoor heat converter of casing inner peripheral frame setting and the drainage channel that is provided with along the side of heat exchanger below and on drainage channel, be provided with and run through a plurality of osculums that the bottom surface forms, the control box that also has off-premises station, it is characterized in that: the heater that is provided with the heating discharge water along the drainage channel bottom surface on chassis, described heater is to adopt the plate shape heater that is made of heat release device and the insulating materials that surrounds the heat release device, and this plate shape heater is provided with the tap that communicates with described osculum.
Described plate shape heater is under the control of off-premises station control box, the heater that can start in certain temperature range/stop.
Drainage channel is provided with the temperature sensor that detects drainage channel discharge water temperature.
Effect of the present invention is the plate shape heater that the icing device of discharge structure sets up along the drainage channel bottom surface that prevents of outdoor unit of air conditioner, and in certain temperature range, start/stop, heat the bottom surface of drainage channel thus, thereby prevent that draining is icing at drainage channel and osculum, and prevented the phenomenon of heap ice thus.
Description of drawings
Fig. 1 is the stereogram after the outdoor unit of air conditioner front of prior art is opened;
Fig. 2 is the outdoor unit of air conditioner drainage channel section of structure of prior art;
Fig. 3 is the local amplification stereogram in existing outdoor unit of air conditioner drainage channel cross section;
Fig. 4 is the discharge structure positive stereogram after open of the outdoor unit of air conditioner of device that freezes that prevents of the present invention;
Fig. 5 is the plane behind the section of outdoor unit of air conditioner drainage channel structure of the present invention;
Fig. 6 is the stereogram that outdoor unit of air conditioner of the present invention prevents the partial cross section of icing device;
Fig. 7 is the stereogram of the partial cross section of plate shape heater of the present invention.
Among the figure:
1: off-premises station 10: casing
11: chassis 12: drainage channel
13: osculum 60: plate shape heater
61: heater element 62: the insulation device
63: tap
The specific embodiment
Below, prevent the discharge structure device that freezes with reference to what drawings and Examples described outdoor unit of air conditioner of the present invention in detail.
Fig. 4 be the present invention design prevent the draining positive stereogram after open of the outdoor unit of air conditioner of device that freezes, Fig. 5 is the profile of outdoor unit of air conditioner drainage channel structure of the present invention, Fig. 6 is outdoor unit of air conditioner that the present invention designs prevent from the to freeze stereogram of partial cross section of device, and Fig. 7 is the stereogram of the partial cross section of plate shape heater of the present invention.
As shown in the figure, comprise in the off-premises station 1 of air-conditioner of the present invention: the inner spatial accommodation that forms, the side be provided with hatch frame right angle hexahedron casing 10, be arranged on casing 10 inside for refrigerant carry out shared gas-liquid separator 20, the refrigerant of compression after the gas-liquid separator separates of gas-liquid separation several compressors 30, be arranged on the open area of casing 10, the outdoor heat converter 40 that makes inner refrigerant carry out heat exchange.
On top board 15, run through the plate face and be provided with hatch frame, and in each open area, be provided with respectively, promote several Air Blast fans 50 of the heat exchange of outdoor heat converter 40 thus by send air to the outside.
On chassis 11, set up each outdoor heat converter 40, and a pair of compressor 30 has been installed on the center of described outdoor heat converter 40 and the shared gas-liquid separator 20 of gaseous coolant is provided for each compressor 30 along the periphery of two sides 16 and back (not having expression among the figure).And being provided with the snow-broth of discharging the defrost water of dissolving the back drippage on the outdoor heat converter 40 or flowing into casing 10 inside when defrosting running and the pressure forming of passing through of rainwater along the side of described outdoor heat converter 40 is the drainage channel 12 of groove and several osculums 13 that run through drainage channel 12 bottom surfaces.
In order to prevent that defrost water or rainwater and snow-broth from freezing, and is provided with the heater that heats along drainage channel 12 below certain temperature on drainage channel 12.
Heater can adopt the various heaters that utilize the power supply heat release that set up along drainage channel 12, and preferably adopts the plate shape heater of laying along the drainage channel bottom surface 60.
And plate shape heater 60 is laid along the bottom surface of drainage channel 12, and the smoothness of carrying out for the draining that makes osculum 13 possesses the tap 63 that communicates with osculum 13 is arranged.
Though not expression in the accompanying drawing, the electric signal of the plurality of temperature sensor that sets up along drainage channel 12 (not having expression among the figure) is input in the off-premises station control box, and off-premises station control box (not expression among the figure) is judged according to this signal, makes plate shape heater 60 On/Off in certain temperature province thus.
Below, the use in air-conditioner outdoor unit that designs for the present invention who as above constitutes prevents that the technique effect of the icing device of draining from describing.
When air-conditioner heats running, indoor set (do not have among the figure expression) heat the back flow in the off-premises station 10 refrigerant by be arranged on outdoor heat converter 40 belows cross cold junction (not representing among the figure) after, become supercooled state by outdoor expansion valve (not expression among the figure), decompression is also expanded, and flow into the low temperature liquid refrigerant of each refrigerant pipe inside under the effect of Air Blast fan by the distributor of outdoor heat converter 40, carry out heat exchange and absorb heat with the outdoor air of the low-temperature condition that flows into casing 1 inside, become the cryogenic gaseous refrigerant.Then, the cryogenic gaseous refrigerant carries out gas-liquid separation in shared gas-liquid separator 20 after, flow into each compressor 30 inside with the state of pure gas and be compressed, export indoor set (not expression among the figure) inside to along output pipe arrangement 19 afterwards.
At this moment, the outdoor air and the outdoor heat converter 40 that flow into casing 10 inside under the effect of Air Blast fan 50 carry out heat exchange, thus in the surperficial frosting of outdoor heat converter 40, reduce the heat exchange efficiency of heat exchanger 40 thus, therefore in order to remove the frost on heat exchanger 40 surfaces, every the running that defrosts of regular hour section.
At this moment, the defrost water that produces in the defrosting running accumulates in the drainage channel 12 on chassis 11, and is discharged to the outside of off-premises station 10 by osculum 13.But, when outside air temperature drops to below 5～7 ℃, in the process that flows along drainage channel 12 and discharge, freeze by osculum in order to prevent defrost water, set up plate shape heater 60 along the bottom surface of drainage channel 12.Described plate shape heater 60 utilizes the plurality of temperature sensor (not shown) detected temperatures that is arranged on the drainage channel 12, and described temperature detection signal is passed to the control box (not shown) of off-premises station 10, by control box in its startup of certain temperature range inner control/stop, heat the drainage channel bottom surface thus, prevent that draining is icing.
Claims (3)
1, a kind of outdoor unit of air conditioner prevent the discharge structure device that freezes, its structure includes outdoor set cabinet, the chassis, along the outdoor heat converter of casing inner peripheral frame setting and the drainage channel that is provided with along the side of heat exchanger below and on drainage channel, be provided with and run through a plurality of osculums that the bottom surface forms, the control box that also has off-premises station, it is characterized in that: the heater that is provided with the heating discharge water along the drainage channel bottom surface on chassis, described heater is to adopt the plate shape heater that is made of heat release device and the insulating materials that surrounds the heat release device, and this plate shape heater is provided with the tap that communicates with described osculum.
2, outdoor unit of air conditioner according to claim 1 prevent the discharge structure device that freezes, it is characterized in that: described plate shape heater is under the control of off-premises station control box, the heater that can start in certain temperature range/stop.
3, outdoor unit of air conditioner according to claim 1 prevent the discharge structure device that freezes, it is characterized in that: described drainage channel is provided with the temperature sensor that detects drainage channel discharge water temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100199238A CN100455942C (en) | 2004-07-08 | 2004-07-08 | Device of preventing drained water from freezing of air conditioner outdoor unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100199238A CN100455942C (en) | 2004-07-08 | 2004-07-08 | Device of preventing drained water from freezing of air conditioner outdoor unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1719147A CN1719147A (en) | 2006-01-11 |
| CN100455942C true CN100455942C (en) | 2009-01-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100199238A Expired - Fee Related CN100455942C (en) | 2004-07-08 | 2004-07-08 | Device of preventing drained water from freezing of air conditioner outdoor unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100455942C (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102322666B (en) * | 2011-08-24 | 2013-08-14 | 广东美的电器股份有限公司 | Movable air conditioner |
| JP5218629B2 (en) * | 2011-12-12 | 2013-06-26 | ダイキン工業株式会社 | Heater and outdoor unit of refrigeration apparatus provided with the same |
| CN104279646A (en) * | 2013-07-01 | 2015-01-14 | 广东美的制冷设备有限公司 | Outdoor unit of air conditioner, base plate assembly of outdoor unit and defrosting method for outdoor unit of air conditioner |
| CN106895619A (en) * | 2016-11-30 | 2017-06-27 | 美的集团武汉制冷设备有限公司 | The deicing control method of air-conditioner and chassis of outdoor unit of air conditioner |
| CN106765950A (en) * | 2016-12-23 | 2017-05-31 | 广东美的暖通设备有限公司 | The control method of air-conditioning heating system, control device and air-conditioner |
| CN108105911A (en) * | 2017-12-07 | 2018-06-01 | 广东美的暖通设备有限公司 | Air conditioner and its control method |
| CN108006926A (en) * | 2017-12-07 | 2018-05-08 | 广东美的暖通设备有限公司 | Air conditioner and its control method |
| CN109631257B (en) * | 2018-12-14 | 2021-06-15 | 广东Tcl智能暖通设备有限公司 | Air conditioner and control method and control device thereof |
| CN109764472A (en) * | 2018-12-14 | 2019-05-17 | 珠海格力电器股份有限公司 | Method for controlling unit drainage and unit |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0618823U (en) * | 1992-08-24 | 1994-03-11 | シャープ株式会社 | Air conditioner outdoor unit |
| JPH0755236A (en) * | 1993-08-20 | 1995-03-03 | Fujitsu General Ltd | Air conditioner |
| JPH10246471A (en) * | 1997-02-28 | 1998-09-14 | Toyotomi Co Ltd | Defrosting structure of outdoor device of air conditioner |
| CN2380848Y (en) * | 1999-07-20 | 2000-05-31 | 海尔集团公司 | Heat-pump type air-conditioner with auxiliary defrosting device |
| 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 |
| CN2472159Y (en) * | 2001-04-16 | 2002-01-16 | 广东科龙电器股份有限公司 | Hot Pump air conditioner with assisting defrosting and heating device |
-
2004
- 2004-07-08 CN CNB2004100199238A patent/CN100455942C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0618823U (en) * | 1992-08-24 | 1994-03-11 | シャープ株式会社 | Air conditioner outdoor unit |
| JPH0755236A (en) * | 1993-08-20 | 1995-03-03 | Fujitsu General Ltd | Air conditioner |
| JPH10246471A (en) * | 1997-02-28 | 1998-09-14 | Toyotomi Co Ltd | Defrosting structure of outdoor device of air conditioner |
| CN2380848Y (en) * | 1999-07-20 | 2000-05-31 | 海尔集团公司 | Heat-pump type air-conditioner with auxiliary defrosting device |
| 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 |
| CN2472159Y (en) * | 2001-04-16 | 2002-01-16 | 广东科龙电器股份有限公司 | Hot Pump air conditioner with assisting defrosting and heating device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1719147A (en) | 2006-01-11 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090128 |