CN102401519B - The off-premises station of air-conditioner - Google Patents
The off-premises station of air-conditioner Download PDFInfo
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- CN102401519B CN102401519B CN201010283341.6A CN201010283341A CN102401519B CN 102401519 B CN102401519 B CN 102401519B CN 201010283341 A CN201010283341 A CN 201010283341A CN 102401519 B CN102401519 B CN 102401519B
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- air
- secondary unit
- heat converter
- coolant
- outdoor heat
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Abstract
A kind of off-premises station of air-conditioner, including: outdoor heat converter, outdoor fan, compressor and electric heater, the supplementary heat exchanger around compressor is set near compressor；Secondary unit includes multiple fin and the refrigerant pipe strung by fin, and secondary unit is connected with outdoor heat converter by refrigerant pipe.The heat that compressor dissipates is absorbed by secondary unit, the temperature of outdoor heat converter can be improved by refrigerant circulation, so that the bulk temperature of outdoor heat converter is higher than freezing point, the frosting probability of outdoor heat converter can be efficiently reduced, reduce the capacity of electric heater, thus save electric energy.Air-conditioner can be reduced shut down, it addition, utilize secondary unit to improve outdoor heat converter temperature, the number of times carrying out defrosting when heating, thus improve air-conditioner heat work efficiency.
Description
Technical field
The present invention relates to the technical field of air-conditioner, specifically one is arranged around secondary unit at compressor, by the coolant in the heat outdoor heat converter of compressor, thus improves the off-premises station of the air-conditioner of defrosting effect.
Background technology
In general, air-conditioner is: in the kind of refrigeration cycle of the sequential loop that summer is evaporated → compresses → condenses → expand, change cross valve in the winter time, carry out the heat pump reverse with kind of refrigeration cycle and heat circulation, indoor temperature is maintained the refrigeration on user's desired level or heating.Air-conditioner generally has both refrigeration or heat-production functions, and suction chamber internal contamination air changes into clean air again to the air-cleaning function of indoor discharge after filtering, and sucks humid air and changes into after dry air again to the dehumidification function etc. of indoor discharge.
Fig. 1 is the schematic diagram of air-conditioner in prior art；Fig. 2 is the internal structure schematic diagram of air-conditioner in prior art.
As depicted in figs. 1 and 2, indoor heat converter 12 is mounted on indoor suction inlet 14 rear before air conditioner room unit 10.There is the refrigerant pipe 20 that coolant flows the inside of indoor heat converter 12, so by the coolant of refrigerant pipe 20 flowing and the temperature of the process adjusting air conditioned spaces 1 of the heat exchange between the room air that indoor suction inlet 14 sucks.That is, air-conditioner, cooling operation when, the low temperature coolant in indoor heat converter 12 flowing carries out heat exchange with room air, reduces the temperature of air conditioned spaces 1；Heating operating when, the high temperature refrigerant in indoor heat converter 12 flowing carries out heat exchange with room air, improves the temperature of air conditioned spaces 1.
Indoor set 10 is connected with off-premises station 30 by refrigerant pipe 20.Off-premises station 30 is outside separately installed at air conditioned spaces 1, is installed as therein adjusting the cross valve 32 that refrigerant circulation flows to；By compression refrigerant, coolant is changed into the compressor 34 of high-temperature high-pressure state coolant；Condense coolant when cooling operation, evaporate the outdoor heat converter 36 of coolant when heating operating；Expand coolant, coolant is changed into the expansion gear 38 of low temperature coolant, and the electric heater 39 etc. for defrost purpose and heating chamber outer heat-exchanger.
In FIG, drawing reference numeral " 16 " is indoor fan, and " 35 " are outdoor suction inlets, and " 37 " are outdoor fans.
Explanation air-conditioner refrigerant circulation in refrigeration or when heating operating below.
First the situation of air-conditioner cooling operation is described.
From the High Temperature High Pressure coolant of compressor 34 discharge according to the effect inflow outdoor heat exchanger 36 of cross valve 32.The High Temperature High Pressure coolant of inflow outdoor heat exchanger 36 carries out heat exchange with the outdoor air flowed in off-premises station 30 and is condensed into liquid refrigerants, then becomes low-temp low-pressure coolant during by expansion gear 38.Then, low-temp low-pressure coolant back flows back in indoor heat converter 12, and carries out heat exchange with the room air flowing into indoor set 10, flows in compressor 34 after reducing indoor air temperature.Therefore, the when of cooling operation, coolant iterative cycles compressor 34 → outdoor heat converter, 36 → expansion gear, 38 → indoor heat converter, 12 → compressor 34, the temperature of air conditioned spaces 1 is reduced to design temperature.
The situation of explanation air conditioner heat-production operating below.
From the High Temperature High Pressure coolant of compressor 34 discharge according to the effect inflow indoor heat exchanger 12 of cross valve 32.High Temperature High Pressure coolant in inflow indoor heat exchanger 12 carries out heat exchange with the room air flowed in indoor set 10, and improves the temperature of room air.Then, while the coolant of indoor heat converter 12 flows through expansion gear 38, become low temperature low pressure gas coolant, flow in compressor 34 after then continuing past outdoor heat converter 36.Therefore, heating operating when, coolant iterative cycles compressor 34 → indoor heat converter, 12 → expansion gear, 38 → outdoor heat converter, 36 → compressor 34, the temperature of air conditioned spaces 1 is brought up to design temperature.
In the heating operations of air-conditioner, including heating stage and defrosting stage；In heating the stage, indoor fan and the outdoor fan of air-conditioner operate simultaneously, make indoor heat converter and the outdoor heat converter air respectively with indoor and outdoors carry out heat exchange, and compressor maintains and heats duty, and cross valve is in opening；In the defrosting stage, indoor fan and outdoor fan are in operating condition, and compressor is reversed refrigeration work, and cross valve is in halted state, and outdoor heat converter is heated by outdoor electric heater.
As mentioned above, air-conditioner is carrying out heating operating when, in the refrigerant pipe of outdoor heat converter, temperature is at about 0 DEG C, if the environment of outdoor is below freezing point temperature and has a certain amount of dampness, expose dew on outdoor heat converter 36 surface of outdoor environment, and such dew freezes below freezing beginning, and form frost.The frost on outdoor heat converter 36 surface continues gradually to increase along with the operating that heats of air-conditioner, and the discharged air temperature carrying out heat exchange from there through indoor heat converter 12 declines, and heat-production functions reduces.Therefore, in order to remove frost, air-conditioner is made also can effectively to carry out heating operating at environment below freezing, need to need at set intervals to carry out defrosting operating in heating operation process, during heating operating, i.e. carry out cooling operation the most during a specified time, in the period carrying out defrosting operating, outdoor heat converter 36 releases heat, melts the frost on outdoor heat converter 36 surface.When defrosting, the heat-production functions of air-conditioner stops, and now indoor temperature can be gradually reduced, it is impossible to keeps the warm of indoor, easily causes the uncomfortable of user.When outside air humidity is the biggest, air-conditioning Defrost operation in operation process can become very frequent, has had a strong impact on the heating performance of air-conditioner.
Summary of the invention
The technical problem to be solved in the present invention is to provide one and is arranged around secondary unit at compressor, by the coolant in the heat outdoor heat converter of compressor, thus improves the off-premises station of the air-conditioner of defrosting effect.
The present invention solves that technical problem is adopted the technical scheme that present in known technology:
The off-premises station of the air-conditioner of the present invention, including: outdoor heat converter, it is disposed in the outdoor in the cabinet of machine, carries out heat exchange with outdoor air；Outdoor fan, is drawn into outdoor air in cabinet and makes air flow through outdoor heat converter；Compressor, pressurizes for coolant and orders about coolant flowing；Electric heater, is disposed in the outdoor near heat exchanger, is that outdoor heat converter defrosts by electrical heating, arranges the supplementary heat exchanger around compressor near compressor；Secondary unit includes multiple fin and the refrigerant pipe strung by fin, and secondary unit is connected with outdoor heat converter by refrigerant pipe.
Connect and be respectively provided with check valve on the refrigerant pipe of secondary unit and outdoor heat converter, the entry position of secondary unit arranges the first check valve making coolant flow into secondary unit direction, arranges the second check valve that coolant flows out to outdoor heat converter direction in the exit position of secondary unit.
Connect and refrigerant pipe formation coolant path is set between secondary unit and the refrigerant pipe of outdoor heat converter, coolant path arranges the 3rd check valve.
According to the flow direction of coolant, before the coolant path two ends of connection refrigerant pipe are separately positioned on the first check valve and after the second check valve, the direction of the 3rd check valve is flowed out side from the coolant of secondary unit and is pointed to the inflow side of coolant.
Above-mentioned secondary unit forms arc surface, semi-surrounding compressor.
Described additional cooler is in parallel with outdoor heat converter.
The present invention has the advantage that with good effect:
In the off-premises station of the air-conditioner of the present invention, around compressor, secondary unit is set, secondary unit is connected with each other by the refrigerant pipe with check valve with the outdoor heat converter of air-conditioner, the part coolant carrying out heat exchange when air conditioner heat-production runs with outside enters into secondary unit by refrigerant pipe, and circulate in secondary unit, owing to when air-conditioner runs, compressor is in the condition of high temperature all the time, the heat of compressor constantly dissipates to outside, a part of heat therein is absorbed by secondary unit, and conduct heat in the coolant of circulation, the refrigerant temperature flowing through secondary unit is made to raise.Simultaneously, when the coolant in secondary unit imports outdoor heat converter again, also the temperature of outdoor heat converter can be improved, so that the bulk temperature of outdoor heat converter is higher than freezing point, the frosting probability of outdoor heat converter can be efficiently reduced, even if frosting can also defrost rapidly under the common effect of electric heater and auxiliary heater, the capacity of electric heater can greatly reduce, thus has saved electric energy.Utilize secondary unit to improve outdoor heat converter temperature to reduce air-conditioner and shut down the number of times carrying out defrosting when heating, thus improve air-conditioner heat work efficiency.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of air-conditioner in prior art；
Fig. 2 is the internal structure schematic diagram of air-conditioner in prior art；
Fig. 3 is the secondary unit in the off-premises station of the air-conditioner of the present invention and outdoor heat converter connection diagram；
Fig. 4 is the schematic diagram of the secondary unit in the off-premises station of the air-conditioner of the present invention；
Fig. 5 is the schematic diagram of another angle of secondary unit in the off-premises station of the air-conditioner of the present invention；
Fig. 6 is the top view of the secondary unit in the off-premises station of the air-conditioner of the present invention.
Detailed description of the invention
Referring to the drawings and embodiment the present invention will be described in detail.
Fig. 3 is the secondary unit in the off-premises station of the air-conditioner of the present invention and outdoor heat converter connection diagram；Fig. 4 is the schematic diagram of the secondary unit in the off-premises station of the air-conditioner of the present invention；Fig. 5 is the schematic diagram of another angle of secondary unit in the off-premises station of the air-conditioner of the present invention；Fig. 6 is the top view of the secondary unit in the off-premises station of the air-conditioner of the present invention.
As shown in Figures 3 to 6, when air conditioner heat-production operates, coolant is pressurizeed by compressor so that the temperature of coolant raises, and the High Temperature High Pressure coolant discharged from compressor is flowed into indoor heat converter by cross valve.Indoor air is sucked by the indoor fan of air-conditioner, and air and indoor heat converter carry out heat exchange and temperature raises, and hot-air is again drained into indoor again by indoor fan, so that indoor temperature raises.Then, the coolant after indoor heat converter heat exchange flows through expansion gear, becomes low temperature low pressure gas coolant simultaneously, and coolant flows in compressor after being then passed through outdoor heat converter.Therefore, heating operating when, coolant iterative cycles compressor → indoor heat converter → expansion gear → outdoor heat converter → compressor, and then the temperature of air conditioned spaces is brought up to design temperature.
The off-premises station of the air-conditioner of the present invention, including heating stage and defrosting stage；In heating the stage, indoor fan and the outdoor fan of air-conditioner operate simultaneously, indoor heat converter and the outdoor heat converter air respectively with indoor and outdoors is made to carry out heat exchange, compressor maintains and heats duty, cross valve is in opening, indoor electric heater selectivity works, if indoor temperature relatively low and also when needing quickly to heat, optional Indoor Thermal heat while operation；In the defrosting stage, indoor fan and outdoor fan are in operating condition, and compressor is reversed refrigeration work, outdoor heat converter is made to be in the condition of high temperature, cross valve is in halted state, and outdoor heat converter is heated by outdoor electric heater, and then makes outdoor heat converter be brought rapidly up defrosting.
In the off-premises station of the air-conditioner of the present invention, outdoor heat converter 36 is disposed in the outdoor in the cabinet of machine, carries out heat exchange with outdoor air, and when air conditioner heat-production, outdoor heat converter is in low temperature state；Outdoor air is drawn in cabinet and makes air flow through outdoor heat converter 36 by outdoor fan；Compressor 34 pressurizes for coolant and orders about coolant flowing；Electric heater is disposed in the outdoor near heat exchanger, it is that outdoor heat converter defrosts by electrical heating, supplementary heat exchanger 40 around compressor is set near compressor, compressor 34 is in the condition of high temperature when air-conditioner runs, the heat that compressor outwards dissipates is absorbed by secondary unit 40, and makes the refrigerant temperature in secondary unit raise；Secondary unit includes multiple fin and the refrigerant pipe strung by fin, secondary unit caloric receptivity at compressor is increased by fin, so that the refrigerant temperature being circulated throughout secondary unit raises further, secondary unit is connected with outdoor heat converter by refrigerant pipe 20, coolant after temperature raises flow back in outdoor heat converter again, mix with the coolant of circulation in outdoor heat converter, and then improve the temperature that outdoor heat converter is overall, the temperature that outdoor heat converter is overall is exceeded freezing point when air conditioner heat-production, maintain essentially in more than 2 DEG C, and then it is effectively prevented because of too low the caused frosting of the temperature of outdoor heat converter, the defrosting time in air conditioner heat-production is shortened while extending the heating operation time, to improve the heating capacity of air-conditioner.
nullConnect and be respectively provided with check valve on the refrigerant pipe 20 of secondary unit 40 and outdoor heat converter 36，Ensure that the coolant between outdoor heat converter and secondary unit keeps unidirectional flowing，Prevent coolant from adverse current occurring in refrigerant pipe，Coolant is flowed into the side of secondary unit from outdoor heat converter and is set to the entrance of secondary unit，The corresponding outlet that coolant is set to from the side of secondary unit inflow outdoor heat exchanger secondary unit，The entry position of secondary unit arranges the first check valve 41 making coolant flow into secondary unit direction，The second check valve 42 that coolant flows out to outdoor heat converter direction is set in the exit position of secondary unit，I.e. ensure that coolant is one-way flow in the refrigerant pipe that secondary unit is arranged，Check valve prevents the generation of coolant adverse current.
Connect and refrigerant pipe formation coolant path 44 is set between secondary unit and the refrigerant pipe of outdoor heat converter, coolant path arranges the 3rd check valve 43.According to the flow direction of coolant, connecting the coolant path two ends of refrigerant pipe and be separately positioned on before the first check valve 41 and second after check valve, the direction of the 3rd check valve is flowed out side from the coolant of secondary unit and is pointed to the inflow side of coolant.The coolant flowing to secondary unit can be flowed by the 3rd check valve and be adjusted, so that coolant keeps continual and steady flowing in secondary unit 40, constantly absorb heat from compressor, and heat is transmitted to outdoor heat converter 36.
Above-mentioned secondary unit 40 forms arc surface, semi-surrounding compressor, to obtain bigger heat exchange area, enables fins set to absorb the heat exhaled from compressor more.
Additional cooler 40 is in parallel with outdoor heat converter 36, makes the refrigerant flow arranged in parallel of the refrigerant flow in outdoor heat converter and secondary unit.Coolant branch road connection secondary unit can be drawn from the refrigerant pipe of outdoor heat converter, the coolant in outdoor heat converter is made to heat in being flowed into secondary unit during circulation, coolant after temperature raises flow back in outdoor heat converter again, thus improves the bulk temperature of outdoor heat converter.
In the off-premises station of the air-conditioner of the present invention, around compressor, secondary unit is set, secondary unit is connected with each other by the refrigerant pipe with check valve with the outdoor heat converter of air-conditioner, the part coolant carrying out heat exchange when air conditioner heat-production runs with outside enters into secondary unit by refrigerant pipe, and circulate in secondary unit, owing to when air-conditioner runs, compressor is in the condition of high temperature all the time, the heat of compressor constantly dissipates to outside, a part of heat therein is absorbed by secondary unit, and conduct heat in the coolant of circulation, the refrigerant temperature flowing through secondary unit is made to raise.Simultaneously, when the coolant in secondary unit imports outdoor heat converter again, also the temperature of outdoor heat converter can be improved, so that the bulk temperature of outdoor heat converter is higher than freezing point, the frosting probability of outdoor heat converter can be efficiently reduced, even if frosting can also defrost rapidly under the common effect of electric heater and auxiliary heater, the capacity of electric heater can greatly reduce, thus has saved electric energy.Utilize secondary unit to improve outdoor heat converter temperature to reduce air-conditioner and shut down the number of times carrying out defrosting when heating, thus improve air-conditioner heat work efficiency.
The above, it it is only presently preferred embodiments of the present invention, not the present invention is made any pro forma restriction, although the present invention is open as above with preferred embodiment, but, it is not limited to the present invention, any those skilled in the art, in the range of without departing from technical solution of the present invention, certainly the technology contents of announcement can be utilized to make a little change or modification, become the Equivalent embodiments of equivalent variations, in every case it is the content without departing from technical solution of the present invention, any simple modification above example made according to the technical spirit of the present invention, equivalent variations and modification, belong in the range of technical solution of the present invention.
Claims (4)
1. an off-premises station for air-conditioner, including: outdoor heat converter, it is disposed in the outdoor in the cabinet of machine, carries out heat exchange with outdoor air；Outdoor fan, is drawn into outdoor air in cabinet and makes air flow through outdoor heat converter；Compressor, pressurizes for coolant and orders about coolant flowing；It is characterized in that: also include electric heater, be disposed in the outdoor near heat exchanger, be that outdoor heat converter defrosts by electrical heating, the supplementary heat exchanger around compressor is set near compressor；Secondary unit includes multiple fin and the refrigerant pipe strung by fin, and secondary unit is connected with outdoor heat converter by refrigerant pipe；Connect and be respectively provided with check valve on the refrigerant pipe of secondary unit and outdoor heat converter, the entry position of secondary unit arranges the first check valve making coolant flow into secondary unit direction, arranges the second check valve that coolant flows out to outdoor heat converter direction in the exit position of secondary unit；Connect and refrigerant pipe formation coolant path is set between secondary unit and the refrigerant pipe of outdoor heat converter, coolant path arranges the 3rd check valve.
The off-premises station of air-conditioner the most according to claim 1, it is characterized in that: according to the flow direction of coolant, before the coolant path two ends of connection refrigerant pipe are separately positioned on the first check valve and after the second check valve, the direction of the 3rd check valve is flowed out side from the coolant of secondary unit and is pointed to the inflow side of coolant.
The off-premises station of air-conditioner the most according to claim 1, it is characterised in that: above-mentioned secondary unit forms arc surface, semi-surrounding compressor.
The off-premises station of air-conditioner the most according to claim 1, it is characterised in that: secondary unit is in parallel with outdoor heat converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010283341.6A CN102401519B (en) | 2010-09-16 | 2010-09-16 | The off-premises station of air-conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010283341.6A CN102401519B (en) | 2010-09-16 | 2010-09-16 | The off-premises station of air-conditioner |
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| CN102401519A CN102401519A (en) | 2012-04-04 |
| CN102401519B true CN102401519B (en) | 2016-08-10 |
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| CN201010283341.6A Expired - Fee Related CN102401519B (en) | 2010-09-16 | 2010-09-16 | The off-premises station of air-conditioner |
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| US11365335B2 (en) | 2017-12-18 | 2022-06-21 | Daikin Industries, Ltd. | Composition comprising refrigerant, use thereof, refrigerating machine having same, and method for operating said refrigerating machine |
| US11549041B2 (en) | 2017-12-18 | 2023-01-10 | Daikin Industries, Ltd. | Composition containing refrigerant, use of said composition, refrigerator having said composition, and method for operating said refrigerator |
| US20200385622A1 (en) | 2017-12-18 | 2020-12-10 | Daikin Industries, Ltd. | Composition comprising refrigerant, use thereof, refrigerating machine having same, and method for operating said refrigerating machine |
| CN109945297A (en) * | 2019-02-26 | 2019-06-28 | 佛山市顺德区美的电子科技有限公司 | Air-conditioning equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0331666A (en) * | 1989-06-28 | 1991-02-12 | Matsushita Electric Ind Co Ltd | Heat pump type air conditioner |
| JPH0875325A (en) * | 1994-09-02 | 1996-03-19 | Soogo:Kk | Defrosting device for refrigerating machine |
| JP2005083711A (en) * | 2003-09-10 | 2005-03-31 | Shinko Kogyo Co Ltd | Defrosting device of heat pump type air conditioner and defrosting method |
| CN2809522Y (en) * | 2005-06-22 | 2006-08-23 | 海尔集团公司 | Defrosting device for engine driven air compressor |
-
2010
- 2010-09-16 CN CN201010283341.6A patent/CN102401519B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0331666A (en) * | 1989-06-28 | 1991-02-12 | Matsushita Electric Ind Co Ltd | Heat pump type air conditioner |
| JPH0875325A (en) * | 1994-09-02 | 1996-03-19 | Soogo:Kk | Defrosting device for refrigerating machine |
| JP2005083711A (en) * | 2003-09-10 | 2005-03-31 | Shinko Kogyo Co Ltd | Defrosting device of heat pump type air conditioner and defrosting method |
| CN2809522Y (en) * | 2005-06-22 | 2006-08-23 | 海尔集团公司 | Defrosting device for engine driven air compressor |
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