CN101639248A - Outdoor unit of air conditioner - Google Patents
Outdoor unit of air conditioner Download PDFInfo
- Publication number
- CN101639248A CN101639248A CN200810054051A CN200810054051A CN101639248A CN 101639248 A CN101639248 A CN 101639248A CN 200810054051 A CN200810054051 A CN 200810054051A CN 200810054051 A CN200810054051 A CN 200810054051A CN 101639248 A CN101639248 A CN 101639248A
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- conditioner
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Abstract
The invention relates to an outdoor unit of an air conditioner, which comprises the following parts: a compressor, which supplies power to the refrigerant flow in the air conditioner; an outdoor heatexchanger, which performs heat exchange with the outside through refrigerant circulation; a fan, which accelerates the heat exchange between the outdoor heat exchanger and the outside through the airflow generated by self rotation; a fan motor, which is connected with the fan and supplies power to the fan; and an outdoor unit shell, which accommodates the parts and is provided with an outdoor suction inlet, wherein the heat exchanger of the outdoor unit is provided with a dehumidifier. When the air conditioner performs heating run under an outdoor low-temperature high-humidity condition, thecold air entering the outdoor unit shell passes through the dehumidifier first, the dehumidifier absorbs the moisture in the air so that the air becomes dry air, the dry air forms no dew on the surface of the heat exchanger when passing through the outdoor heat exchanger, and the outdoor heat exchanger cannot frost, so the times of performing defrosting operation by the air conditioner are reduced, the heating run is more consecutive, and the heating performance of the air conditioner is improved.
Description
Technical field
The present invention relates to the technical field of air-conditioner outdoor unit, be a kind ofly on the off-premises station heat exchanger, dehydrating unit to be set specifically, thereby can when air conditioner heat-production, effectively remove airborne moisture content, reduce the off-premises station of the air-conditioner of off-premises station heat-exchanger surface frosting.
Background technology
In general, air-conditioner is: evaporate in summer → compress → kind of refrigeration cycle of the sequential loop of condensation → expansion, change cross valve in the winter time, carry out heating circulation, indoor temperature is maintained refrigeration or heating on user's desired level with the reverse heat pump of kind of refrigeration cycle.Air-conditioner has both refrigeration or heat-production functions usually, changes into clean air after suction chamber internal contamination air filters again to the air-cleaning function of indoor discharge, sucks humid air and changes into behind the dry air again to the dehumidification function of indoor discharge etc.
Fig. 1 is the structural representation of air-conditioner in the prior art.
As shown in Figure 1, indoor heat converter 12 is installed in indoor suction inlet 14 rears that are positioned at air conditioner room unit 10 fronts.So the conduit 20 that the inside of indoor heat converter 12 has refrigerant to flow is by refrigerant that flows at conduit 20 and the temperature of adjusting air conditioning space 1 from the process of the heat exchange between the room air of indoor suction inlet 14 suctions.That is, air-conditioner, in cooling operation, the low temperature refrigerant and the room air that flow at indoor heat converter 12 carry out heat exchange, reduce the temperature in air conditioning space 1; When heating running, the high temperature refrigerant and the room air that flow at indoor heat converter 12 carry out heat exchange, improve the temperature in air conditioning space 1.
Indoor set 10 is connected with off-premises station 30 by conduit 20.Off-premises station 30 1 outside is installed separately in the air conditioning space, within it portion be installed as adjust the refrigerant circular flow to cross valve 32; By compression refrigerant, refrigerant is changed into the compressor 34 of high-temperature high-pressure state refrigerant; Condensation refrigerant when cooling operation, the outdoor heat converter 36 of evaporation refrigerant when heating running; The expansion refrigerant changes refrigerant into the expansion gear 38 of low-temp low-pressure state refrigerant etc.
In Fig. 1, drawing reference numeral " 16 " is an indoor fan, and " 35 " are outdoor suction inlets, and " 37 " are outdoor fans.
The following describes the refrigerant circulation of air-conditioner when freezing or heat running.
The situation of air-conditioner cooling operation at first is described.
The HTHP refrigerant of discharging from compressor 34 is according to 36 li of the effect inflow outdoor heat exchangers of cross valve 32.The HTHP refrigerant of inflow outdoor heat exchanger 36 carries out heat exchange with the outdoor air that flows into 30 li of off-premises stations and is condensed into liquid refrigerants, becomes the low-temp low-pressure refrigerant then in the process by expansion gear 38.Then, the low-temp low-pressure refrigerant is 12 li of inflow indoor heat exchangers again, and carry out heat exchange with the room air that flows into indoor set 10, flow into 34 li on compressor after reducing indoor air temperature.Therefore, in the time of cooling operation, refrigerant is recycle compressor 34 → outdoor heat converter 36 → expansion gear 38 → indoor heat converter 12 → compressor 34 repeatedly, and the temperature in air conditioning space 1 is reduced to design temperature.
The following describes the situation of air conditioner heat-production running.
The HTHP refrigerant of discharging from compressor 34 is according to 12 li of the effect inflow indoor heat exchangers of cross valve 32.The HTHP refrigerant that inflow indoor heat exchanger is 12 li carries out heat exchange with the room air that flows into 10 li of indoor sets, and improves the temperature of room air.Then, become the low-temp low-pressure gas coolant when flowing through expansion gear 38, continue then to flow into 34 li on compressors through outdoor heat converter 36 backs through the refrigerant of indoor heat converter 12.Therefore, when heating running, refrigerant is recycle compressor 34 → indoor heat converter 12 → expansion gear 38 → outdoor heat converter 36 → compressor 34 repeatedly, and the temperature in air conditioning space 1 is brought up to design temperature.
As mentioned above, air-conditioner is when heating running, if outdoor environment is below freezing point temperature and a certain amount of moisture arranged, expose dew on outdoor heat converter 36 surfaces of outdoor environment, and such dew begins to freeze under outdoor temperature condition below freezing, and forms frost.The frost on outdoor heat converter 36 surfaces carry out the discharged air temperature decline of heat exchange thus by indoor heat converter 12, and heat-production functions reduces along with the running that heats of air-conditioner continues to increase gradually.Therefore, in order to remove frost, make air-conditioner also can effectively heat running at environment below freezing, need at set intervals in heating operation process, to need the running that defrosts, promptly in heating the process of running, carry out cooling operation at set intervals during a specified time, during the running that defrosts, outdoor heat converter 36 is emitted heat, melts outdoor heat converter 36 lip-deep frosts.When outdoor air humidity was very big, the Defrost operation of air-conditioning in operation process can become very frequent, 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 provides and a kind ofly on the off-premises station heat exchanger dehydrating unit is set, thereby can effectively remove airborne moisture content when air conditioner heat-production, reduces the off-premises station of the air-conditioner of off-premises station heat-exchanger surface frosting.
The technical scheme that the present invention takes for the technical problem that exists in the solution known technology is:
The off-premises station of air-conditioner of the present invention comprises: provide the compressor of power for refrigerant in the air-conditioner flows; By refrigerant circulation and the extraneous outdoor heat converter that carries out heat exchange; By self rotating the air flow faster outdoor heat converter and the extraneous fan that carries out heat exchange that produces; The fan electromotor that power is provided and provides for fan with fan; Hold above-mentioned parts and be provided with the casing of outdoor of outdoor suction inlet, on the off-premises station heat exchanger, dehydrating unit is set.
Described dehydrating unit is a rotary dehumidifier, and the rotary dehumidifier position is located between outdoor heat converter and the outdoor suction inlet: be arranged on that rotatable desiccant wheel is made of hygroscopic material on the support, its operating position is divided into treatment region and renewing zone; The runner drive motors provides power for desiccant wheel; Electric heater is arranged on a side and the close runner of desiccant wheel; The electric heater shell envelopes electric heater and forms the space in inside, with regeneration fan with the exhaust passage is airtight is communicated with; The another side that outdoor heat converter leads to outdoor heat converter is passed in the exhaust passage; On the support of desiccant wheel opposite side and electric heater correspondence position, opening is set and the heater air intake duct is installed; Heater air intake duct, electric heater shell, regeneration fan and exhaust passage form air communication channel in the renewing zone.
The described desiccant wheel outside is provided with passive tooth, passes through gear transmission power between desiccant wheel and the runner drive motors.
Described runner drive motors can adopt motor with cup rotor.
Described treatment region is 2-4 with the ratio of the shared separately desiccant wheel area in renewing zone: 1.
Described Dehumidifying rotary wheel the moisture absorption material be cellular.
Advantage and good effect that the present invention has are:
The off-premises station of air-conditioner of the present invention is provided with dehydrating unit on the off-premises station heat exchanger, when carrying out heating operation under the situation of air-conditioner at outdoor low temperature and high relative humidity, the cold air that enters casing of outdoor at first will pass through dehydrating unit, dehydrating unit absorbs airborne moisture content, make it to become dry air, dry air can not formed dew at heat-exchanger surface during by outdoor heat converter, outdoor heat converter just can frosting yet, thereby reduced the number of times that air-conditioner carries out Defrost operation, make heating operation more coherent, improved the heating performance of air-conditioner.
Description of drawings
Fig. 1 is the structural representation of air-conditioner in the prior art;
Fig. 2 is the structural representation of the off-premises station of air-conditioner of the present invention;
Fig. 3 is the structural representation of dehydrating unit in the off-premises station of air-conditioner of the present invention;
Fig. 4 is the side-looking exploded view of dehydrating unit in the off-premises station of air-conditioner of the present invention;
Fig. 5 is the power transmission schematic diagram of desiccant wheel in the off-premises station of air-conditioner of the present invention.
The specific embodiment
It is following that the present invention will be described in detail with reference to drawings and Examples.
Fig. 2 is the structural representation of the off-premises station of air-conditioner of the present invention; Fig. 3 is the structural representation of dehydrating unit in the off-premises station of air-conditioner of the present invention; Fig. 4 is the side-looking exploded view of dehydrating unit in the off-premises station of air-conditioner of the present invention; Fig. 5 is the power transmission schematic diagram of desiccant wheel in the off-premises station of air-conditioner of the present invention.
To shown in Figure 5, the off-premises station of air-conditioner of the present invention comprises as Fig. 2: provide the compressor of power for refrigerant in the air-conditioner flows; By refrigerant circulation and the extraneous outdoor heat converter that carries out heat exchange; By self rotating the air flow faster outdoor heat converter and the extraneous fan that carries out heat exchange that produces; The fan electromotor that power is provided and provides for fan with fan; The casing of outdoor that holds above-mentioned parts is provided with dehydrating unit 100 on off-premises station heat exchanger 36, absorb moisture content contained in the air that enters casing of outdoor with this, avoids the humid air under cryogenic conditions to take place directly to contact with outdoor heat converter.
Dehydrating unit is a rotary dehumidifier, and the rotary dehumidifier position is located between the air inlet of outdoor heat converter and casing of outdoor, and the air that enters air-conditioning will pass rotary dehumidifier and could arrive outdoor heat converter.The support of rotary dehumidifier is fixed on the outdoor heat converter, the desiccant wheel 101 of rotation when support 102 is provided with, desiccant wheel is made of hygroscopic material, the hygroscopic material internal structure is cellular, the circulation that not only can strengthen the moisture absorption area but also can guarantee to pass the Dehumidifying rotary wheel air, its operating position is divided into treatment region and renewing zone according to function, treatment region is used for contacting with clammy air, absorb airborne moisture content, then make water evaporates in the desiccant wheel in the renewing zone, thereby keep the lasting wettability power of desiccant wheel by heating.Treatment region and the renewing zone ratio of the area of shared desiccant wheel separately are 3: 1, power of regeneration desiccant wheel is relatively poor if the treatment region area occupied is excessive, moisture content in the absorbent structure in time can't be removed, dehumidifying effect can become along with the running of air-conditioner worse and worse; If the shared area ratio in renewing zone is excessive, then the area of treatment region diminishes, and promptly the area that contacts with humid air diminishes, and wettability power just can not be guaranteed.
Desiccant wheel is provided with driven gear, and the driving gear that is provided with on driven gear and the runner drive motors axle matches, and provides power by runner drive motors (not shown) for desiccant wheel.Be the operation that guarantees that desiccant wheel is stablized low noise, the runner drive motors adopts motor with cup rotor.
In a side of desiccant wheel and near the runner place electric heater (not shown) is set, electric heater shell 103 envelopes electric heater and forms the space in inside, with regeneration fan 104 and 105 airtight connections of exhaust passage, the another side that outdoor heat converter leads to outdoor heat converter is passed in the exhaust passage, on the support of desiccant wheel opposite side and electric heater correspondence position opening is set and heater air intake duct 106 is installed, heater air intake duct, electric heater shell, regeneration fan and exhaust passage form air communication channel in the renewing zone.Regeneration fan is rotated air is sucked via the heater air intake duct, when desiccant wheel turned to the electric heater position, electric heater was with the water evaporates in the hygroscopic material, and then moisture content flows with inhaled air, flow through regeneration fan and exhaust passage, be discharged to the opposite side of outdoor heat converter then.
When carrying out heating operation under the situation of air-conditioner at outdoor low temperature and high relative humidity, the cold air that enters casing of outdoor at first will pass through dehydrating unit, dehydrating unit absorbs airborne moisture content, make it to become dry air, dry air can not formed dew at heat-exchanger surface during by outdoor heat converter, outdoor heat converter just can frosting yet, thereby has reduced the number of times that air-conditioner carries out Defrost operation, makes heating operation more coherent.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention with preferred embodiment openly as above, yet, be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, certainly can utilize the technology contents of announcement to make a little change or modification, become the equivalent embodiment of equivalent variations, be the content that does not break away from technical solution of the present invention in every case, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all belong in the scope of technical solution of the present invention.
Claims (6)
1, a kind of off-premises station of air-conditioner comprises: provide the compressor of power for refrigerant in the air-conditioner flows; By refrigerant circulation and the extraneous outdoor heat converter that carries out heat exchange; By self rotating the air flow faster outdoor heat converter and the extraneous fan that carries out heat exchange that produces; The fan electromotor that power is provided and provides for fan with fan; Hold above-mentioned parts and be provided with the casing of outdoor of outdoor suction inlet, it is characterized in that: on the off-premises station heat exchanger, dehydrating unit is set.
2, the off-premises station of air-conditioner according to claim 1, it is characterized in that: dehydrating unit is a rotary dehumidifier, the rotary dehumidifier position is located between outdoor heat converter and the outdoor suction inlet: be arranged on that rotatable desiccant wheel is made of hygroscopic material on the support, its operating position is divided into treatment region and renewing zone; The runner drive motors provides power for desiccant wheel; Electric heater is arranged on a side and the close runner of desiccant wheel; The electric heater shell envelopes electric heater and forms the space in inside, with regeneration fan with the exhaust passage is airtight is communicated with; The another side that outdoor heat converter leads to outdoor heat converter is passed in the exhaust passage; On the support of desiccant wheel opposite side and electric heater correspondence position, opening is set and the heater air intake duct is installed; Heater air intake duct, electric heater shell, regeneration fan and exhaust passage form air communication channel in the renewing zone.
3, the off-premises station of air-conditioner according to claim 2 is characterized in that: the desiccant wheel outside is provided with passive tooth, passes through gear transmission power between desiccant wheel and the runner drive motors.
4, the off-premises station of air-conditioner according to claim 2 is characterized in that: the runner drive motors can adopt motor with cup rotor.
5, the off-premises station of air-conditioner according to claim 2 is characterized in that: treatment region and the renewing zone ratio of the area of shared desiccant wheel separately are 2-4: 1.
6, the off-premises station of air-conditioner according to claim 2 is characterized in that: Dehumidifying rotary wheel the moisture absorption material be cellular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810054051A CN101639248A (en) | 2008-08-01 | 2008-08-01 | Outdoor unit of air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810054051A CN101639248A (en) | 2008-08-01 | 2008-08-01 | Outdoor unit of air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101639248A true CN101639248A (en) | 2010-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810054051A Pending CN101639248A (en) | 2008-08-01 | 2008-08-01 | Outdoor unit of air conditioner |
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| Country | Link |
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| CN (1) | CN101639248A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006449A (en) * | 2014-05-28 | 2014-08-27 | 广东美的集团芜湖制冷设备有限公司 | Air-conditioner and control method thereof |
| CN104422041A (en) * | 2013-08-28 | 2015-03-18 | 广东美的制冷设备有限公司 | Method for reducing frosting speed of outdoor machine as well as air conditioner system and outdoor machine |
| CN106016517A (en) * | 2016-07-13 | 2016-10-12 | 珠海格力电器股份有限公司 | Air conditioner and fresh air exchanging system thereof |
| CN106091166A (en) * | 2016-07-18 | 2016-11-09 | 珠海格力电器股份有限公司 | Air-conditioner outdoor unit, air-conditioner and air-conditioner outdoor unit defrosting method |
| CN112984643A (en) * | 2021-03-02 | 2021-06-18 | 上海理工大学 | Outdoor unit anti-frosting device of air source heat pump air conditioner |
| CN113418242A (en) * | 2021-06-03 | 2021-09-21 | 重庆海尔空调器有限公司 | Anhydrous humidifying device and air conditioner |
| CN114251876A (en) * | 2022-03-02 | 2022-03-29 | 山东华业阳光新能源有限公司 | Heat exchanger capable of improving air circulation effect |
-
2008
- 2008-08-01 CN CN200810054051A patent/CN101639248A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104422041A (en) * | 2013-08-28 | 2015-03-18 | 广东美的制冷设备有限公司 | Method for reducing frosting speed of outdoor machine as well as air conditioner system and outdoor machine |
| CN104422041B (en) * | 2013-08-28 | 2017-09-29 | 广东美的制冷设备有限公司 | Reduce the method and air-conditioning system and outdoor unit of outdoor unit frosting velocity |
| CN104006449A (en) * | 2014-05-28 | 2014-08-27 | 广东美的集团芜湖制冷设备有限公司 | Air-conditioner and control method thereof |
| CN104006449B (en) * | 2014-05-28 | 2017-06-06 | 广东美的集团芜湖制冷设备有限公司 | Air-conditioner and its control method |
| CN106016517A (en) * | 2016-07-13 | 2016-10-12 | 珠海格力电器股份有限公司 | Air conditioner and fresh air exchanging system thereof |
| CN106091166A (en) * | 2016-07-18 | 2016-11-09 | 珠海格力电器股份有限公司 | Air-conditioner outdoor unit, air-conditioner and air-conditioner outdoor unit defrosting method |
| CN112984643A (en) * | 2021-03-02 | 2021-06-18 | 上海理工大学 | Outdoor unit anti-frosting device of air source heat pump air conditioner |
| CN113418242A (en) * | 2021-06-03 | 2021-09-21 | 重庆海尔空调器有限公司 | Anhydrous humidifying device and air conditioner |
| CN114251876A (en) * | 2022-03-02 | 2022-03-29 | 山东华业阳光新能源有限公司 | Heat exchanger capable of improving air circulation effect |
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Open date: 20100203 |