CN204063307U - New fan - Google Patents
New fan Download PDFInfo
- Publication number
- CN204063307U CN204063307U CN201420519717.2U CN201420519717U CN204063307U CN 204063307 U CN204063307 U CN 204063307U CN 201420519717 U CN201420519717 U CN 201420519717U CN 204063307 U CN204063307 U CN 204063307U
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- CN
- China
- Prior art keywords
- heat exchanger
- heat pipe
- new wind
- blower fan
- heat
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 239000003507 refrigerant Substances 0.000 claims abstract description 19
- 238000009434 installation Methods 0.000 claims abstract description 13
- 238000003303 reheating Methods 0.000 claims abstract description 12
- 238000001914 filtration Methods 0.000 claims description 24
- 238000000746 purification Methods 0.000 claims description 20
- 238000007791 dehumidification Methods 0.000 claims description 11
- 238000005057 refrigeration Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 241000894006 Bacteria Species 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000009833 condensation Methods 0.000 abstract description 15
- 230000005494 condensation Effects 0.000 abstract description 15
- 238000001704 evaporation Methods 0.000 abstract description 5
- 230000008020 evaporation Effects 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000012530 fluid Substances 0.000 description 6
- 230000007423 decrease Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
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- Drying Of Gases (AREA)
Abstract
The utility model provides a new fan. This new fan includes interior machine and outer machine, is connected with the refrigerant pipe between interior machine and the outer machine, and its characterized in that, interior machine includes: the inner machine shell is provided with an inner machine installation cavity; the heat pipe heat exchanger is arranged in the inner machine installation cavity and is provided with a heat pipe evaporation section and a heat pipe condensation section, the heat pipe evaporation section is a heat pipe pre-cooling part, the heat pipe condensation section is positioned at the downstream of the heat pipe evaporation section along the flow direction of fresh air, and the heat pipe condensation section is a heat pipe reheating part; the first heat exchanger is positioned between the heat pipe evaporation section and the heat pipe condensation section; and the second heat exchanger is positioned at the downstream of the heat pipe condensation section along the flow direction of fresh air, the first heat exchanger is connected with an external machine, and the second heat exchanger is connected between the first heat exchanger and the external machine. Can simplify new fan structure through this new fan, reduce installation procedure, save construction cost.
Description
Technical field
The utility model relates to apparatus of air conditioning field, in particular to the new blower fan of one.
Background technology
Existing new blower fan is by water-cooled precooling zone mostly, evaporative cooling cryogenic, and hot water backheat section forms, and needed for precooling and backheat, cold water and hot water are all supplied by main frame.Be applicable to the VMC of large-sized unit.In general, Fresh air handling units is all provided with air filtration and purification apparatus and disinfection parts, to ensure new wind air quality.This system generally all needs from main frame connecting water pipe to new blower fan, constructs more complicated.
Separately have patent CN201310178554.6 to adopt the pre-cold-peace reheating of gravity assisted heat pipe, but air channel have passed through the turning of 180 degree, increases resistance and noise.And use heat pipe reheating merely, when low temperature dehumidification, leaving air temp is not high enough, makes human body sensory comfortable not.
Utility model content
The utility model aims to provide a kind of new blower fan, to solve the complicated problem of the numerous and jumbled construction of Fresh air handling units structure of the prior art.
To achieve these goals, according to an aspect of the present utility model, provide a kind of new blower fan, this new blower fan comprises interior machine and outer machine, is connected with refrigerant pipe between interior machine and outer machine, and interior machine comprises: inner casing body, inner casing body has interior machine installation cavity; Heat exchange of heat pipe, heat exchange of heat pipe is arranged in interior machine installation cavity, and has heat pipe evaporator section and heat pipe condenser section, heat pipe evaporator section is heat pipe precooling portion, along new wind flow direction, heat pipe condenser section is positioned at the downstream of heat pipe evaporator section, and heat pipe condenser section is heat pipe reheating portion; First Heat Exchanger, First Heat Exchanger is between heat pipe evaporator section and heat pipe condenser section; Second heat exchanger, along new wind flow direction, the second heat exchanger is positioned at heat pipe condenser section downstream, and First Heat Exchanger is connected with outer machine, and the second heat exchanger is connected between First Heat Exchanger and outer machine.
Further, inner casing body is also provided with new wind air inlet, new wind air outlet and new wind return air inlet, new wind air inlet is positioned on the first side wall of inner casing body, the first side wall is the sidewall of the first end on the length direction of inner casing body, new wind return air inlet and new wind air inlet are positioned on the first side wall, and new wind air outlet is positioned on the 3rd sidewall perpendicular to the first side wall.
Further, interior machine also comprises the filtration, purification structure of filtering bacterium and impurity in new wind, along new wind flow direction, filtration, purification structure is positioned at the upstream of heat pipe evaporator section, filtration, purification structure comprises installing frame, fly net and roughing efficiency air filter, and fly net and roughing efficiency air filter are all arranged in installing frame.
Further, interior machine also comprises the outlet section new wind being gone out inner casing body, and along new wind flow direction, outlet section is positioned at the second heat exchanger downstream, and outlet section is arranged on new wind air outlet place.
Further, also be provided with between First Heat Exchanger and the second heat exchanger and change new blower fan and freeze, heat the mode switching unit with low temperature dehumidification pattern, mode switching unit comprises the control valve and throttling element that are arranged in parallel, when new blower fan is in refrigeration mode or heating mode, control valve is opened, when new blower fan is in low temperature dehumidification pattern, control valve is closed, and refrigerant passes through throttling element.
Further, interior machine also comprises installing plate, and heat exchange of heat pipe, First Heat Exchanger and the second heat exchanger are all arranged on a mounting board, and installing plate is removably disposed in inner casing body.
Further, interior machine also comprises air inlet adjustment plate and return air adjustable plate, and air inlet adjustment plate aperture adjustable ground is arranged on new wind air inlet, and return air adjustable plate aperture adjustable ground is arranged on new wind return air inlet place.
Further, outer machine comprises compressor, the cross valve be communicated with the compressor outlet of compressor, the 3rd heat exchanger that is communicated with cross valve.
Further, the second heat exchanger is communicated with the 3rd heat exchanger, and is also provided with electric expansion valve between the second heat exchanger and the 3rd heat exchanger.
Application the technical solution of the utility model, this new blower fan carries out pre-cold-peace reheating by heat exchange of heat pipe to new wind, eliminate the pre-air-cooled structure of water-cooled, decrease water pipe, simplify the structure of new blower fan, the installation steps reduced and installation cost, effectively reclaimed heat in addition, improve the utilization rate of the energy.
Accompanying drawing explanation
The accompanying drawing forming a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 shows the schematic diagram under the refrigeration mode of the new blower fan of embodiment of the present utility model;
Fig. 2 shows the schematic diagram under the low temperature dehumidification pattern of the new blower fan of embodiment of the present utility model; And
Fig. 3 shows the perspective view of the interior machine of the new blower fan of embodiment of the present utility model.
Description of reference numerals: 10, interior machine; 11, filtration, purification structure; 12, heat pipe evaporator section; 13, First Heat Exchanger; 14, heat pipe condenser section; 15, the second heat exchanger; 16, control valve; 17, throttling element; 18, new wind air inlet; 19, new wind return air inlet; 110, new wind air outlet; 20, outer machine; 21, compressor; 22, fluid reservoir; 23, cross valve; 24, the 3rd heat exchanger; 25, electric expansion valve.
Detailed description of the invention
Hereinafter also describe the utility model in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
As shown in Figures 1 to 3, according to embodiment of the present utility model, new blower fan comprises interior machine 10 and outer machine 20, is connected with refrigerant pipe between interior machine 10 and outer machine 20, interior machine 10 comprises inner casing body, heat exchange of heat pipe, First Heat Exchanger 13 and the second heat exchanger 15, inner casing body has interior machine installation cavity; Heat exchange of heat pipe is arranged in interior machine installation cavity, and there is heat pipe evaporator section 12 and heat pipe condenser section 14, heat pipe evaporator section 12 is heat pipe precooling portion, along new wind flow direction, heat pipe condenser section 14 is positioned at the downstream of heat pipe evaporator section 12, and heat pipe condenser section 14 is heat pipe reheating portion; First Heat Exchanger 13 is between heat pipe evaporator section 12 and heat pipe condenser section 14; Along new wind flow direction, the second heat exchanger 15 is positioned at heat pipe condenser section 14 downstream, and First Heat Exchanger 13 is connected with outer machine 20, and the second heat exchanger 15 is connected between First Heat Exchanger 13 and outer machine 20.
This new blower fan carries out pre-cold-peace reheating by heat exchange of heat pipe to new wind, eliminates the pre-air-cooled structure of water-cooled, decreases water pipe, simplify the structure of new blower fan, the installation steps of minimizing and installation cost, effectively reclaimed heat in addition, improve the utilization rate of the energy.
In conjunction with see Fig. 3, in the present embodiment, inner casing body is also provided with new wind air inlet 18, new wind air outlet 110 and new wind return air inlet 19, new wind air inlet 18 is positioned on the first side wall of inner casing body, the first side wall is the sidewall of the first end on the length direction of inner casing body, and new wind air outlet 110 is positioned on the 3rd sidewall perpendicular to the first side wall.New wind return air inlet 19 and new wind air inlet 18 on same sidewall, also namely on the first side wall, before filtration, purification parts.
Preferably, the first side wall is the sidewall vertical with the wind direction of interior machine, and the air-out direction of new wind air outlet 110 can be lower air-out, side air-out or end face air-out.New wind air outlet 110 is provided with flange, connects airduct to indoor to facilitate.Form the air channel of 90 degree from new wind air inlet 18 to new wind air outlet 110, windage is less, and air-out is more smooth and easy, and wind noise is less.
In the present embodiment, interior machine 10 also comprises the filtration, purification structure 11 of filtering bacterium and impurity in new wind, along new wind flow direction, filtration, purification structure 11 is positioned at the upstream of heat pipe evaporator section 12, and be positioned at the downstream of new wind air inlet 18, filtration, purification structure 11 comprises installing frame, fly net and roughing efficiency air filter, and fly net and roughing efficiency air filter are all arranged in installing frame.
Filtration, purification structure 11 adopts modularized design, and filtration, purification structure 11 is as a whole, directly can inject interior machine by guide rail or draw-in groove, easy maintenance and replacement from the side of inner casing body.Structure in filtration, purification structure 11 can need to select according to filtration, and filtration, purification structure 11 can also comprise medium effeciency filter or high efficiency particulate air filter.
Interior machine 10 also comprises the outlet section new wind being gone out inner casing body, and along new wind flow direction, outlet section is positioned at the second heat exchanger 15 downstream, and outlet section is arranged on new wind air outlet 110 place.Outlet section can be cross flow fan or centrifugal blower.
In the present embodiment, also be provided with between First Heat Exchanger 13 and the second heat exchanger 15 and change new blower fan and freeze, heat the mode switching unit with low temperature dehumidification pattern, mode switching unit comprises the control valve 16 and throttling element 17 that are arranged in parallel, when new blower fan is in refrigeration mode or heating mode, control valve 16 is opened, when new blower fan is in low temperature dehumidification pattern, control valve 16 is closed, and refrigerant is by throttling element 17.The stream of refrigerant between First Heat Exchanger 13 and the second heat exchanger 15 can be controlled by control valve 16 and throttling element 17.Wherein, conveniently control, control valve 16 is magnetic valve.
Interior machine 10 also comprises installing plate, and heat exchange of heat pipe, First Heat Exchanger 13 and the second heat exchanger 15 are all arranged on a mounting board, and installing plate is removably disposed in inner casing body.By installing plate, heat exchange of heat pipe, First Heat Exchanger 13 and the second heat exchanger 15 are assembled a module, be convenient for changing and install.
In the present embodiment, First Heat Exchanger 13, second heat exchanger 15 according to the demand in ability and space and restriction, and can be chosen to different patterns, and as First Heat Exchanger 13 can adopt V-type heat exchanger, the second heat exchanger 15 can adopt flat plate heat exchanger.Or First Heat Exchanger 13 and the second heat exchanger 15 all adopt flat plate heat exchanger, and the row of heat exchanger needs to determine according to ability, can be single, double or three row etc.
Interior machine 10 also comprises air inlet adjustment plate and return air adjustable plate, and air inlet adjustment plate aperture adjustable ground is arranged on new wind air inlet 18 place, and return air adjustable plate aperture adjustable ground is arranged on new wind return air inlet 19 place.Can adjust the aperture of new wind air inlet 18 and the aperture of new wind return air inlet 19 as required by air inlet adjustment plate and return air adjustable plate, can adjust fresh air proportion easily with this, fresh air proportion can from 0 to 100%.The aperture of air inlet adjustment plate and return air adjustable plate can be realized by Electric Machine Control air-valve.
In the present embodiment, outer machine 20 comprises compressor 21, the cross valve 23 be communicated with the compressor outlet of compressor 21, the 3rd heat exchanger 24 that is communicated with cross valve 23.Second heat exchanger 15 is communicated with the 3rd heat exchanger 24, and is also provided with electric expansion valve 25 between the second heat exchanger 15 and the 3rd heat exchanger 24.
According to another aspect of the present utility model, new blower control method comprises the steps:
Judge the mode of operation of new blower fan;
If new blower fan is in refrigeration mode, then the D port of cross valve 23 is communicated with C port, E port is communicated with S port, refrigerant flows out from compressor outlet, and enter condensation in the 3rd heat exchanger 24, enter after electric expansion valve 25 throttling in the second heat exchanger 15 and evaporate, control valve 16 is opened, refrigerant enters evaporation in First Heat Exchanger 13, then gets back to compressor 21 by cross valve 23;
If new blower fan is in heating mode, then the D port of cross valve 23 is communicated with E port, C port is communicated with S port, refrigerant flows out from compressor outlet, and enters condensation in First Heat Exchanger 13, and control valve 16 is opened, after refrigerant enters and continues condensation in the second heat exchanger 15, after electric expansion valve 25 throttling, enter the 3rd heat exchanger 24 and evaporate, then get back to compressor 21 by cross valve 23;
If new blower fan is in low temperature dehumidification pattern, then the D port of cross valve 23 is communicated with C port, E port is communicated with S port, refrigerant flows out from compressor outlet, and enters condensation in the 3rd heat exchanger 24, afterwards by the electric expansion valve 25 of standard-sized sheet, enter the second heat exchanger 15 and continue condensation, control valve 16 is closed, and refrigerant enters First Heat Exchanger 13 by throttling element 17 and evaporates, and then gets back to compressor 21 by cross valve 23.
In the present embodiment, outer machine 20 also comprises fluid reservoir 22 to store refrigerant, and fluid reservoir 22 is connected to the compressor inlet of compressor 21.
In this new blower fan course of work:
See Fig. 1, during refrigeration mode, compressor 21 high temperature and high pressure gas is out through cross valve 23, enter the 3rd heat exchanger 24 condensation, evaporate by entering the second heat exchanger 15 after electric expansion valve 25 throttling again, now control valve 16 is opened, and refrigerant continues to be evaporated to gas by entering First Heat Exchanger 13 after magnetic valve, then gets back to compressor 21 via cross valve 23 and fluid reservoir 22.High temperature air is after filtration, purification structure 11, through heat pipe evaporator section 12 precooling, below dew point is cooled to again through First Heat Exchanger 13, air is dehumidified, again through heat pipe condenser section 14, air themperature raises and realizes reheating, then through the second heat exchanger 15, sends after air themperature is lowered to again lower temperature through new wind air outlet 110.
See Fig. 2, during heating mode, compressor 21 high temperature and high pressure gas is out through cross valve 23, enter First Heat Exchanger 13 condensation, after magnetic valve, enter the second heat exchanger 15 again continue condensation, refrigerant liquid is again after electric expansion valve 25 throttling, and the 3rd heat exchanger 24 entering outer machine evaporates, then gets back to compressor 21 by cross valve 23 via fluid reservoir 22.Cryogenic air is after filtration, purification structure 11, first through heat pipe evaporator section 12, heated through First Heat Exchanger 13 again, then through heat pipe condenser section 14 reheating, sent through new wind air outlet 110 be again heated to higher temperature after the second heat exchanger 15 after.
During low temperature dehumidification pattern, compressor 21 high temperature and high pressure gas is out through cross valve 23, enter the 3rd heat exchanger 24 condensation, enter the second heat exchanger 15 by the electric expansion valve 25 of standard-sized sheet without throttling again and continue condensation, now closed electromagnetic valve, refrigerant is evaporated to gas by entering First Heat Exchanger 13 after throttling element 17 throttling, then gets back to compressor 21 via cross valve 23 and fluid reservoir 22.Air is after filtration, purification structure 11, through heat pipe evaporator section 12 by precooling, below dew point is reduced to again through First Heat Exchanger 13, air is dehumidified, again through heat pipe condenser section 14 reheating, air themperature is raised, then sends through new wind air outlet 110 after the second heat exchanger 15 is raised to higher temperature.
As can be seen from the above description, the utility model the above embodiments achieve following technique effect: during low temperature dehumidification, combined bear reheating function, better effects if by heat exchange of heat pipe and the second heat exchanger.Have air inlet adjustment plate and the return air adjustable plate of adjustable fresh air proportion, applicability is better.Filtration, purification structure and heat exchanger components design respectively as an integral module, easy to replace and maintain.New blower fan can be applicable to the occasion of middle Smaller load, and be only made up of interior machine and outer machine two parts, interior machine is connected by refrigerant pipe with outer machine, constructs without the need to other water pipes.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (9)
1. a new blower fan, comprises interior machine (10) and outer machine (20), is connected with refrigerant pipe, it is characterized in that between described interior machine (10) and described outer machine (20), and described interior machine (10) comprising:
Inner casing body, described inner casing body has interior machine installation cavity;
Heat exchange of heat pipe, described heat exchange of heat pipe is arranged in described interior machine installation cavity, and there is heat pipe evaporator section (12) and heat pipe condenser section (14), described heat pipe evaporator section (12) is heat pipe precooling portion, along new wind flow direction, described heat pipe condenser section (14) is positioned at the downstream of described heat pipe evaporator section (12), and described heat pipe condenser section (14) is heat pipe reheating portion;
First Heat Exchanger (13), described First Heat Exchanger (13) is positioned between described heat pipe evaporator section (12) and described heat pipe condenser section (14);
Second heat exchanger (15), along new wind flow direction, described second heat exchanger (15) is positioned at described heat pipe condenser section (14) downstream, described First Heat Exchanger (13) is connected with described outer machine (20), and described second heat exchanger (15) is connected between described First Heat Exchanger (13) and described outer machine (20).
2. new blower fan according to claim 1, it is characterized in that, described inner casing body is also provided with new wind air inlet (18), new wind air outlet (110) and new wind return air inlet (19), described new wind air inlet (18) is positioned on the first side wall of described inner casing body, described the first side wall is the sidewall of the first end on the length direction of described inner casing body, described new wind return air inlet (19) and described new wind air inlet (18) are positioned on the first side wall, described new wind air outlet (110) is positioned on the 3rd sidewall perpendicular to described the first side wall.
3. new blower fan according to claim 1 and 2, it is characterized in that, described interior machine (10) also comprises the filtration, purification structure (11) of filtering bacterium and impurity in new wind, along new wind flow direction, described filtration, purification structure (11) is positioned at the upstream of described heat pipe evaporator section (12), described filtration, purification structure (11) comprises installing frame, fly net and roughing efficiency air filter, and described fly net and roughing efficiency air filter are all arranged in described installing frame.
4. new blower fan according to claim 2, it is characterized in that, described interior machine (10) also comprises the outlet section new wind being gone out described inner casing body, along new wind flow direction, described outlet section is positioned at described second heat exchanger (15) downstream, and described outlet section is arranged on described new wind air outlet (110) place.
5. new blower fan according to claim 1, it is characterized in that, also be provided with between described First Heat Exchanger (13) and described second heat exchanger (15) and change described new blower fan and freeze, heat the mode switching unit with low temperature dehumidification pattern, described mode switching unit comprises the control valve (16) and throttling element (17) that are arranged in parallel, when described new blower fan is in refrigeration mode or heating mode, described control valve (16) is opened, when described new blower fan is in low temperature dehumidification pattern, described control valve (16) is closed, refrigerant is by described throttling element (17).
6. new blower fan according to claim 1, it is characterized in that, described interior machine (10) also comprises installing plate, described heat exchange of heat pipe, described First Heat Exchanger (13) and described second heat exchanger (15) are all arranged on described installing plate, and described installing plate is removably disposed in described inner casing body.
7. new blower fan according to claim 2, it is characterized in that, described interior machine (10) also comprises air inlet adjustment plate and return air adjustable plate, described air inlet adjustment plate aperture adjustable ground is arranged on described new wind air inlet (18) place, and described return air adjustable plate aperture adjustable ground is arranged on described new wind return air inlet (19) place.
8. new blower fan according to claim 5, it is characterized in that, described outer machine (20) comprises compressor (21), the cross valve (23) be communicated with the compressor outlet of described compressor (21), the 3rd heat exchanger (24) that is communicated with described cross valve (23).
9. new blower fan according to claim 8, it is characterized in that, described second heat exchanger (15) is communicated with described 3rd heat exchanger (24), and is also provided with electric expansion valve (25) between described second heat exchanger (15) and described 3rd heat exchanger (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420519717.2U CN204063307U (en) | 2014-09-10 | 2014-09-10 | New fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420519717.2U CN204063307U (en) | 2014-09-10 | 2014-09-10 | New fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204063307U true CN204063307U (en) | 2014-12-31 |
Family
ID=52204806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420519717.2U Expired - Lifetime CN204063307U (en) | 2014-09-10 | 2014-09-10 | New fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204063307U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197418A (en) * | 2014-09-10 | 2014-12-10 | 珠海格力电器股份有限公司 | Fresh air machine and fresh air machine control method |
| CN106839185A (en) * | 2017-02-21 | 2017-06-13 | 南通华信中央空调有限公司 | A kind of changeable replacement aeration type of new return air removes the new blower fan of haze |
-
2014
- 2014-09-10 CN CN201420519717.2U patent/CN204063307U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197418A (en) * | 2014-09-10 | 2014-12-10 | 珠海格力电器股份有限公司 | Fresh air machine and fresh air machine control method |
| CN104197418B (en) * | 2014-09-10 | 2017-01-25 | 珠海格力电器股份有限公司 | Fresh air machine and fresh air machine control method |
| CN106839185A (en) * | 2017-02-21 | 2017-06-13 | 南通华信中央空调有限公司 | A kind of changeable replacement aeration type of new return air removes the new blower fan of haze |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141231 |