CN202153031U - Air conditioning system and dehumidifier applying same - Google Patents
Air conditioning system and dehumidifier applying same Download PDFInfo
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- CN202153031U CN202153031U CN2011201445625U CN201120144562U CN202153031U CN 202153031 U CN202153031 U CN 202153031U CN 2011201445625 U CN2011201445625 U CN 2011201445625U CN 201120144562 U CN201120144562 U CN 201120144562U CN 202153031 U CN202153031 U CN 202153031U
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- 238000004378 air conditioning Methods 0.000 title abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 69
- 230000001105 regulatory effect Effects 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 10
- 230000005494 condensation Effects 0.000 claims description 5
- 238000009833 condensation Methods 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 5
- 239000003507 refrigerant Substances 0.000 abstract description 17
- 238000007791 dehumidification Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000000498 cooling water Substances 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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Abstract
The application discloses dehumidifier of air conditioning system and applied this system, this system includes: the compressor, the shell and tube condenser, the first condenser, the throttling device and the evaporator are sequentially and annularly communicated; the first water pump is communicated with the heat exchange tube of the shell and tube condenser; a temperature sensor behind the first condenser in an air flow direction; and the controller is connected with the temperature sensor and the first water pump. The air conditioning system that this application embodiment provided can carry out the free regulation to the temperature of the refrigerant of the first condenser of flowing through the frequency of control first water pump, and then realizes adjusting air temperature. Compared with the prior art, the air conditioning system does not need to start and stop the compressor, can avoid frequently starting and stopping the compressor, and can avoid the problems that the service life of the compressor is influenced and the temperature fluctuation range of air is large due to frequent starting and stopping of the compressor.
Description
Technical field
The application relates to the air-conditioning technique field, particularly relates to a kind of air handling system and uses the dehumidifier of this system.
Background technology
Dehumidifier can divide be removed water in air, and the humidity regulation of room air in suitable scope, is improved the air quality of indoor living environment.Existing dehumidifier operation principle is generally: adopt compressor that the low-temp low-pressure gas refrigerant is compressed into high temperature and high pressure gas; Heat release becomes liquid refrigerant to high-temperature high-pressure gas refrigerant through condenser condenses; Liquid refrigerant becomes low-temp low-pressure gas-liquid mixed state through throttling arrangement, and gas is absorbed heat in evaporation when evaporator.In when dehumidifying, from suction hole room air is sucked, air makes the relative humidity of air reduce through the evaporator cools dehumidifying, and then the air after will dehumidifying sends back to after via the condenser heat temperature raising indoor.
The adjustment of existing dehumidifier mainly realizes through the start and stop compressor.When carrying out adjustment, when detecting the dehumidifier leaving air temp and be lower than first setting value, close compressor, heat-exchange system quits work; When temperature is higher than second setting value, compressor and starting, heat-exchange system is started working
Through the research to prior art, the inventor finds: existing dehumidifier is in to the adjustment process: work as close compressor, after heat-exchange system quit work, leaving air temp will soon go up, thereby caused after shorter blanking time, and compressor need be opened again.So need the frequent start-stop compressor, not only influence the service life of compressor, and governing response speed is slower, the temperature fluctuation range of air is bigger, can't satisfy the indoor comfort degree requirement.
The utility model content
In view of this, the application embodiment provides a kind of air handling system and uses the dehumidifier of this system, can be respectively the temperature and humidity of the air of the dehumidifier of flowing through be regulated realizing.
To achieve these goals, the technical scheme that provides of the application embodiment is following:
A kind of air handling system comprises: compressor, package condenser, first condenser, throttling arrangement, evaporimeter, first water pump, temperature sensor and controller, wherein:
Said compressor, package condenser, first condenser, throttling arrangement and evaporimeter annular successively are communicated with, and air-flow direction is for to point to first condenser by said evaporimeter;
Said first water pump is connected with the heat-exchange tube of package condenser; Said temperature sensor is arranged on the rear of first condenser on the air-flow direction, and said temperature sensor is electrically connected with said controller, and can gather the temperature value of air;
Said controller is electrically connected with the said temperature sensor and first water pump respectively, and the temperature value that collects according to said temperature sensor of the said controller operating frequency of regulating said first water pump;
And said controller judges whether said temperature value exceeds the preset range value; And work as said temperature value greater than ceiling temperature threshold value and lasting first Preset Time; Improve the frequency of first water pump; When said temperature value less than the lower limit temperature threshold value and continue second Preset Time, reduce the frequency of first water pump.
Preferably, said first condenser and evaporimeter are finned heat exchanger.
Preferably, this system further comprises: humidity control apparatus, and said humidity control apparatus comprises: surface cooler, second water pump and humidity sensor, wherein:
Said humidity sensor is arranged on the rear of first condenser on the air-flow direction, and said humidity sensor is electrically connected with said controller, and can gather the humidity value of air; Said surface cooler position is arranged on the place ahead of evaporimeter on the air-flow direction; Said second water pump is connected with the heat-exchange tube of surface cooler;
Said controller is electrically connected with said second water pump, and said controller according to said humidity sensor gather the humidity value operating frequency of regulating second water pump.
Preferably, said first water pump, second water pump are variable frequency pump.
A kind of dehumidifier comprises: shell and aforesaid air handling system, wherein:
Said shell is provided with air inlet and air outlet, and said enclosure is provided with the air channel;
Said air handling system is positioned at said enclosure, and said evaporimeter, first condenser be successively set on inside, air channel along said air inlet to air outlet direction, and said temperature sensor is arranged between first condenser and the air outlet.
Preferably, said air handling system further comprises aforesaid humidity control apparatus, wherein:
Said humidity sensor is arranged between first condenser and the air outlet, and said surface cooler is arranged between air inlet and the evaporimeter.
Preferably, said first water pump, second water pump are variable frequency pump.
Preferably, said air channel is linearity or curve-like.
Preferably, said air inlet and air outlet are provided with screen pack.
Preferably, this dehumidifier further comprises: a plurality of fluid collection devices are positioned at said air channel and are positioned at the bottom of said evaporimeter and surface cooler, and can collect the liquid that condensation produces on said evaporimeter and the surface cooler.
Visible by above technical scheme; This air handling system that the application embodiment provides and the dehumidifier of using this system; Air is successively through evaporator, first condenser and Temperature Humidity Sensor, and evaporimeter can carry out cool-down dehumidification to air, and first condenser can be heated to air.First water pump is connected with the heat-exchange tube of package condenser, and when normal condition, its frequency is constant, the promptly feasible temperature constant that gets into the cold-producing medium of first condenser.The temperature value of the air after the temperature sensor collection is heated through dehumidifying; And send to controller; When the temperature value that collects greater than the ceiling temperature threshold value and continue first Preset Time, controller improves the frequency of first water pump, reduces the temperature of package condenser; Promptly can reduce the temperature of the cold-producing medium that flows into first condenser, and then can be so that air themperature reduces; When the temperature value that collects less than the lower limit temperature threshold value and continue second Preset Time, controller reduces the frequency of first water pump, improves the temperature of the cold-producing medium that flows into first condenser, and then can be so that air themperature raises.
This air handling system can be carried out free adjustment to the temperature of the cold-producing medium of first condenser of flowing through through the frequency of control first water pump, and then realizes air themperature is regulated.Compared with prior art, this air handling system need not the start and stop compressor, can avoid the frequent start-stop compressor, and can avoid owing to the frequent start-stop compressor causes influencing the service life of compressor and the bigger problem of temperature fluctuation range of air.
In addition; This air handling system also comprises humidity sensor, surface cooler and second water pump, and humidity sensor is used to gather the humidity value of dehumidifying back air, and surface cooler is arranged on the place ahead of evaporimeter on the air-flow direction; Be used for air is carried out preliminary cool-down dehumidification; Second water pump is used for the temperature of control table cooler, and when normal condition, its frequency is constant.When the humidity value that collects greater than upper limit humidity threshold value and continue the 3rd Preset Time, controller improves the frequency of second water pump, reduces the temperature of surface cooler; Improve the efficient of preliminary dehumidifying, promptly reduce the humidity of preliminary dehumidifying back air, when the humidity value that collects less than lower limit humidity threshold value and continue the 4th Preset Time; Controller reduces the frequency of second water pump; Improve the temperature of surface cooler, reduce the efficient of preliminary dehumidifying, promptly improve the humidity of preliminary dehumidifying back air.
Therefore, this air handling system can also be regulated air humidity when air themperature is regulated, and separate to the adjustment process of temperature and humidity, does not disturb mutually.
Description of drawings
In order to be illustrated more clearly in the application embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment that put down in writing among the application, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of a kind of air handling system that Fig. 1 provides for the application embodiment;
The structural representation of the another kind of air handling system that Fig. 2 provides for the application embodiment;
The structural representation of a kind of dehumidifier that Fig. 3 provides for the application embodiment;
The structural representation of the another kind of dehumidifier that Fig. 4 provides for the application embodiment.
The specific embodiment
In order to make those skilled in the art person understand the technical scheme among the application better; To combine the accompanying drawing among the application embodiment below; Technical scheme among the application embodiment is carried out clear, intactly description; Obviously, described embodiment only is the application's part embodiment, rather than whole embodiment.Based on the embodiment among the application, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all should belong to the scope of the application's protection.
Embodiment one:
The structural representation of a kind of air handling system that Fig. 1 provides for the application embodiment.
As shown in Figure 1, this air handling system comprises: compressor 1, package condenser 2, first condenser 3, evaporimeter 4, throttling arrangement 5, first water pump 6, temperature sensor 7 and controller 8.
When compressor 1 work; With pumping into package condenser 2 after the gas refrigerant compression; And by flowing into first condenser 3 in the package condenser 2, in the package condenser 2 and first condenser 3, high temperature compressed gas refrigerant can the condensation heat release become liquid refrigerant; The temperature of the package condenser 2 and first condenser 3 is raise, and promptly first condenser 3 can be heated to the air of flowing through; When liquid refrigerant gets in the evaporimeter 4 through throttling arrangement 5 from first condenser 3; Liquid refrigerant can evaporate to absorb heat and become gas refrigerant this moment; Because the evaporation heat absorption makes the temperature of evaporimeter 4 to reduce, promptly evaporimeter 4 can carry out cool-down dehumidification to the air of flowing through.The flow of the effect step-down of throttling arrangement 5 and the liquid refrigerant of control inflow evaporator 4.Promptly this system is when lowering the temperature to air, and air at first carries out cool-down dehumidification through evaporator 4, heats through first condenser 3 then, and the air after at last dehumidifying being heated is delivered to the city.
In the application embodiment; Set inside at package condenser 2 has heat-exchange tube, and the inlet of heat-exchange tube is B1, exports to be B2; First water pump 6 is arranged on the inlet B1 of package condenser 2 heat-exchange tubes; Be used for cooling water is pumped into the heat-exchange tube of package condenser 2, in the application embodiment, first water pump 6 is a variable frequency pump.Cooling water in the package condenser 2 in the heat-exchange tube can be taken away the heat of package condenser 2 cold-producing mediums of flowing through through heat exchange.First water pump 6 rotates with fixing frequency when normal condition.In addition, in the application embodiment, first condenser 3 is finned heat exchanger with evaporimeter 4, with the speed of increase with the heat exchange of air.
When the temperature value that collects greater than the ceiling temperature threshold value; And continue first Preset Time, controller 8 improves the frequency of first water pump 6, accelerates the rate of heat exchange of package condenser 2; Reduce the temperature of package condenser 2; Promptly can reduce the temperature of the cold-producing medium that flows out package condenser 2, the temperature that gets into the gas refrigerant of first condenser 3 this moment reduces, and then gas refrigerant heat release in first condenser 3 is less; The temperature of first condenser, 3 air will reduce so flow through, and reaches the cooling purpose.
When the temperature value that collects less than the ceiling temperature threshold value; And continue second Preset Time, controller 8 reduces the frequency of first water pump 6, slows down the rate of heat exchange to package condenser 2; Make the temperature of package condenser 2 raise; Can be so that flowing out the temperature of the cold-producing medium of package condenser 2 raise, the temperature that gets into the gas refrigerant of first condenser 3 this moment raises, and then gas refrigerant heat release in first condenser 3 increases; The temperature of first condenser, 3 air will increase so flow through, and reaches to heat purpose.
In the application embodiment, the size of first Preset Time and second Preset Time can be identical, also can be different, and can set according to actual needs.This air handling system need not the start and stop compressor when air themperature is regulated, just can realize through the frequency of controlling first water pump.And when temperature was regulated, the frequency of first water pump can be regulated continuously, made that the fluctuation of regulating the back air themperature is less.
Embodiment two:
On the basis of embodiment one; In order to realize that the humidity of air is regulated; The application embodiment also provides another kind of air handling system; As shown in Figure 2, this air handling system also comprises: humidity control apparatus, humidity control apparatus comprise surface cooler 9, second water pump 10 and humidity sensor 11.
In the application embodiment; Cooling fluid in the heat-exchange tube of surface cooler 9 is a cold water; Compare evaporimeter 4; The temperature of evaporimeter 4 is far below the temperature of surface cooler 9, and promptly surface cooler 9 is that the air of flowing through is carried out preliminary cool-down dehumidification, and evaporimeter 4 then carries out degree of depth cool-down dehumidification to the air of flowing through.
When the humidity value that collects greater than upper limit humidity threshold value; And continue the 3rd Preset Time; Controller 8 improves the frequency of second water pump 10, accelerates the rate of heat exchange of surface cooler 9, reduces the temperature of surface cooler 3; Promptly can reduce the humidity of the air of the surface cooler 5 of flowing through, reach the purpose that reduces humidity.
When the humidity value that collects less than upper limit humidity threshold value; And continue the 4th Preset Time; Controller 8 reduces the frequency of second water pump 10, slows down the rate of heat exchange to surface cooler 9, makes the temperature of surface cooler 9 raise; Promptly can increase the humidity of the air of the surface cooler 9 of flowing through relatively, reach the purpose that humidity raises.
Therefore, this air handling system can also be regulated air humidity when air themperature is regulated, and separate to the adjustment process of temperature and humidity, does not disturb mutually.
Embodiment three:
The application also provides the dehumidifier of a kind of application implementation example one air handling system of describing, the structural representation of a kind of dehumidifier that Fig. 1 provides for the application embodiment.
As shown in Figure 3, this dehumidifier comprises: shell 100 and like embodiment one described air handling system, wherein:
Shell 100 is provided with air inlet 101 and air outlet 102, and in shell 100, is provided with air channel 103.
As shown in Figure 3, evaporimeter 4, first condenser 3 are disposed with 103 inside, air channel along air inlet 101 to air outlet 102 directions; And in the air channel 103 of temperature sensor 7 between first condenser 3 and air outlet 102, and near air outlet 102, in addition, compressor 1, package condenser 2, first water pump 6 all are positioned at shell 100 inside.
In the application embodiment, the air channel 103 in the shell 100 can linearity, also can be curve-like.In addition, can also be provided with the screen pack (not shown) with air outlet 102 places, avoid foreign material to get into air channel 103 at air inlet 101.
In addition, in air channel 103, also be provided with the fluid collection device (not shown), and fluid collection device is positioned at the bottom of air channel 103 evaporimeters 4, is used to collect the water that condensation produces on the evaporimeter 4.
Embodiment four:
On the basis of embodiment three, as shown in Figure 4, the structural representation of the another kind of dehumidifier that provides for the application embodiment, the dehumidifier that the application provides can also comprise like the humidity control apparatus described in the embodiment three.
As shown in Figure 4, surface cooler 9 is arranged in the air channel 103, and between air inlet 101 and evaporimeter 4, humidity sensor 11 is provided with in the air channel 103, and is located between first condenser 3 and the air outlet 103.About the annexation between surface cooler 9 and second water pump 10, humidity sensor 11 and controller 8, controller 8 and second water pump 10, in embodiment two, describe in detail, repeat no more at this.
In addition, in air channel 103 and below surface cooler 9, also be provided with fluid collection device, be used for the water that condensation on the surface cooler 9 is produced.
Visible by above technical scheme; This air handling system that the application embodiment provides and the dehumidifier of using this system; Air is successively through evaporator, first condenser and Temperature Humidity Sensor, and evaporimeter can carry out cool-down dehumidification to air, and first condenser can be heated to air.First water pump is connected with the heat-exchange tube of package condenser, and when normal condition, its frequency is constant, the promptly feasible temperature constant that gets into the cold-producing medium of first condenser.The temperature value of the air after the temperature sensor collection is heated through dehumidifying; And send to controller; When the temperature value that collects greater than the ceiling temperature threshold value and continue first Preset Time, controller improves the frequency of first water pump, reduces the temperature of package condenser; Promptly can reduce the temperature of the cold-producing medium that flows into first condenser, and then can be so that air themperature reduces; When the temperature value that collects less than the lower limit temperature threshold value and continue second Preset Time, controller reduces the frequency of first water pump, improves the temperature of the cold-producing medium that flows into first condenser, and then can be so that air themperature raises.
This air handling system can be carried out free adjustment to the temperature of the cold-producing medium of first condenser of flowing through through the frequency of control first water pump, and then realizes air themperature is regulated.Compared with prior art, this air handling system need not the start and stop compressor, can avoid the frequent start-stop compressor, and can avoid owing to the frequent start-stop compressor causes influencing the service life of compressor and the bigger problem of temperature fluctuation range of air.
In addition; This air handling system also comprises humidity sensor, surface cooler and second water pump, and humidity sensor is used to gather the humidity value of dehumidifying back air, and surface cooler is arranged on the place ahead of evaporimeter on the air-flow direction; Be used for air is carried out preliminary cool-down dehumidification; Second water pump is used for the temperature of control table cooler, and when normal condition, its frequency is constant.When the humidity value that collects greater than upper limit humidity threshold value and continue the 3rd Preset Time, controller improves the frequency of second water pump, reduces the temperature of surface cooler; Improve the efficient of preliminary dehumidifying, promptly reduce the humidity of preliminary dehumidifying back air, when the humidity value that collects less than lower limit humidity threshold value and continue the 4th Preset Time; Controller reduces the frequency of second water pump; Improve the temperature of surface cooler, reduce the efficient of preliminary dehumidifying, promptly improve the humidity of preliminary dehumidifying back air.
Therefore, this air handling system can also be regulated air humidity when air themperature is regulated, and separate to the adjustment process of temperature and humidity, does not disturb mutually.
The above only is the application's a preferred implementation, makes those skilled in the art can understand or realize the application.Multiple modification to these embodiment will be conspicuous to one skilled in the art, and defined General Principle can realize under the situation of spirit that does not break away from the application or scope in other embodiments among this paper.Therefore, the application will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (10)
1. an air handling system is characterized in that, comprising: compressor, package condenser, first condenser, throttling arrangement, evaporimeter, first water pump, temperature sensor and controller, wherein:
Said compressor, package condenser, first condenser, throttling arrangement and evaporimeter annular successively are communicated with, and air-flow direction is for to point to first condenser by said evaporimeter;
Said first water pump is connected with the heat-exchange tube of package condenser; Said temperature sensor is arranged on the rear of first condenser on the air-flow direction, and said temperature sensor is electrically connected with said controller, and can gather the temperature value of air;
Said controller is electrically connected with the said temperature sensor and first water pump respectively, and the temperature value that collects according to said temperature sensor of the said controller operating frequency of regulating said first water pump.
2. system according to claim 1 is characterized in that, said first condenser and evaporimeter are finned heat exchanger.
3. system according to claim 1 is characterized in that, further comprises: humidity control apparatus, and said humidity control apparatus comprises: surface cooler, second water pump and humidity sensor, wherein:
Said humidity sensor is arranged on the rear of first condenser on the air-flow direction, and said humidity sensor is electrically connected with said controller, and can gather the humidity value of air; Said surface cooler position is arranged on the place ahead of evaporimeter on the air-flow direction; Said second water pump is connected with the heat-exchange tube of surface cooler;
Said controller is electrically connected with said second water pump, and said controller according to said humidity sensor gather the humidity value operating frequency of regulating second water pump.
4. according to claim 1 or 3 described systems, it is characterized in that said first water pump, second water pump are variable frequency pump.
5. a dehumidifier is characterized in that, comprising: shell and air handling system according to claim 1 or claim 2, wherein:
Said shell is provided with air inlet and air outlet, and said enclosure is provided with the air channel;
Said air handling system is positioned at said enclosure, and said evaporimeter, first condenser be successively set on inside, air channel along said air inlet to air outlet direction, and said temperature sensor is arranged between first condenser and the air outlet.
6. dehumidifier according to claim 5 is characterized in that said air handling system further comprises humidity control apparatus as claimed in claim 3, wherein:
Said humidity sensor is arranged between first condenser and the air outlet, and said surface cooler is arranged between air inlet and the evaporimeter.
7. according to claim 5 or 6 described dehumidifiers, it is characterized in that said first water pump, second water pump are variable frequency pump.
8. dehumidifier according to claim 5 is characterized in that, said air channel is linearity or curve-like.
9. dehumidifier according to claim 5 is characterized in that said air inlet and air outlet are provided with screen pack.
10. according to claim 5 or 6 described dehumidifiers; It is characterized in that; Further comprise: a plurality of fluid collection devices are positioned at said air channel and are positioned at the bottom of said evaporimeter and surface cooler, and can collect the liquid that condensation produces on said evaporimeter and the surface cooler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201445625U CN202153031U (en) | 2011-05-09 | 2011-05-09 | Air conditioning system and dehumidifier applying same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201445625U CN202153031U (en) | 2011-05-09 | 2011-05-09 | Air conditioning system and dehumidifier applying same |
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| Publication Number | Publication Date |
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| CN202153031U true CN202153031U (en) | 2012-02-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201445625U Expired - Lifetime CN202153031U (en) | 2011-05-09 | 2011-05-09 | Air conditioning system and dehumidifier applying same |
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| Country | Link |
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| CN (1) | CN202153031U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106731534A (en) * | 2016-12-21 | 2017-05-31 | 上海神开石油化工装备股份有限公司 | A kind of air humidity adjusting device |
| CN109595721A (en) * | 2018-12-12 | 2019-04-09 | 江苏翼兰博特新能源科技有限公司 | A kind of leaving air temp control air-conditioning |
-
2011
- 2011-05-09 CN CN2011201445625U patent/CN202153031U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106731534A (en) * | 2016-12-21 | 2017-05-31 | 上海神开石油化工装备股份有限公司 | A kind of air humidity adjusting device |
| CN109595721A (en) * | 2018-12-12 | 2019-04-09 | 江苏翼兰博特新能源科技有限公司 | A kind of leaving air temp control air-conditioning |
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Granted publication date: 20120229 |