CN108105122B - Double-blade ventilator - Google Patents
Double-blade ventilator Download PDFInfo
- Publication number
- CN108105122B CN108105122B CN201711172905.7A CN201711172905A CN108105122B CN 108105122 B CN108105122 B CN 108105122B CN 201711172905 A CN201711172905 A CN 201711172905A CN 108105122 B CN108105122 B CN 108105122B
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- Prior art keywords
- fan blade
- panel
- turbine
- blade
- air
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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.)
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- 238000009423 ventilation Methods 0.000 claims abstract description 10
- 238000007664 blowing Methods 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 241001075561 Fioria Species 0.000 abstract description 12
- 239000002516 radical scavenger Substances 0.000 abstract description 8
- 241000883990 Flabellum Species 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 4
- 241000237858 Gastropoda Species 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
- F04D29/282—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a double-blade ventilator, and belongs to the technical field of ventilator. The ventilation fans in the prior art have the disadvantages of low ventilation rate, poor ventilation effect and poor user experience. The utility model provides a two flabellum scavenger fans, includes scavenger fan and drives scavenger fan pivoted major axis, a major axis one end connection inlet fan leaf, inlet fan leaf is the turbine flabellum that can blow to indoor, scavenger fan leaf is the centrifugal fan leaf that can exhaust to the outdoor. According to the invention, the centrifugal fan blades and the turbine fan blades are arranged, gas is discharged outdoors under the drive of the centrifugal fan blades, the turbine fan blades rotate to blow air indoors, so that the flow of indoor gas is accelerated, the turbine fan blades are adopted, the gas blown out of the turbine fan blades flows to the periphery, the blown gas is prevented from facing the body of a user, the user experience is good, and meanwhile, the flow of indoor gas can be effectively accelerated, so that the indoor air can be quickly, efficiently and comprehensively ventilated.
Description
Technical Field
The invention relates to a double-blade ventilator, belonging to the technical field of ventilator.
Background
At present, the existing ventilator is mainly provided with a single fan blade, and indoor air is sucked into a machine body and discharged outdoors through a fan assembly of the ventilator. The indoor range acted by the ventilator is a sector area with a certain angle formed by the air inlet of the ventilator, the air flows slowly or does not flow still in other areas, the ventilation effect is difficult to reach the whole indoor area, especially four corners, even if the ventilator is in operation, the ventilation effect is poor, and the comfort of people is directly influenced.
Chinese patent (application number 200820178854.9) discloses a bidirectional ventilator, on which a central shaft and a winding ring are arranged, and a frame and a wire are additionally arranged. Pulling the stay wire can make the ventilator rotate in the frame, so that the outward face of the ventilator can be turned inward, and vice versa. Thus, the purposes of exhausting air outdoors and blowing air indoors by the unidirectional ventilating fan are achieved. However, this structure cannot perform the air discharge and air blowing at the same time, which affects the ventilation efficiency. Further, the air blowing port and the air exhaust port of the ventilator are the same, the air blowing port faces the user, the blown air faces the body of the user, and the user experience is poor.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide the double-blade ventilator with high ventilation efficiency, good ventilation effect and good user experience.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
the utility model provides a two flabellum scavenger fans, includes scavenger fan and drives scavenger fan pivoted major axis, a major axis one end connection inlet fan leaf, inlet fan leaf is the turbine flabellum that can blow to indoor, scavenger fan leaf is the centrifugal fan leaf that can exhaust to the outdoor.
The centrifugal fan blade and the turbine fan blade are arranged, and can adopt a forward tilting design to optimize the air inlet and outlet direction. The gas is discharged outdoors under the drive of the centrifugal fan blades, the turbine fan blades rotate to blow air indoors, the flow of indoor gas is accelerated, the turbine fan blades are adopted, the gas blown out by the turbine fan blades flows all around, the blown gas is prevented from facing the body of a user, the user experience is good, meanwhile, the flow of indoor gas can be effectively accelerated, and therefore the indoor air can be quickly, efficiently and comprehensively ventilated.
As the preferable technical measure, the turbine fan blade comprises a bracket fixedly connected with a long shaft, an annular inner ring wound around the bracket and a fan blade arranged around the outer side surface of the annular inner ring in a circle, wherein the long shaft drives the bracket and the fan blade to rotate, and the wind direction generated by the fan blade is perpendicular to the extending direction of the long shaft. The annular inner ring of the turbine fan blade is used for separating the air flow sucked by the centrifugal fan blade and preventing the sucked air flow from being disturbed.
As the preferable technical measure, the fan blade is obliquely fixed on the annular inner ring, the height of the fan blade is a, the height of the annular inner ring is b, a is larger than b, and the lower end part of the fan blade protrudes out of the annular inner ring, so that the fan blade is simple in structure and practical.
As a preferable technical measure, the end part of the fan blade is provided with a side wall for limiting the wind direction, and the side wall comprises a first side wall fixedly connected with the annular inner ring and a second side wall forming an air inlet with the annular inner ring. The air flow and the induced draft air flow of the machine body form indoor circulation, so that the indoor air flow speed is increased. As the centrifugal fan blade and the air inlet channel of the turbine fan blade share the same, the air inlet areas of the centrifugal fan blade and the turbine fan blade still have overlapped parts in the inner space of the turbine fan blade, and air flow turbulence can be caused, so that noise is generated in the air inlet channel. In order to solve the above-mentioned phenomenon, design the annular inner race at the turbine blade, the air current is separated two parts by annular inner race when entering the turbine blade at this moment: the air flow of the outermost ring enters the turbine blades, and the air flow of the middle part directly enters the centrifugal blades through the air inlet of the annular inner ring. The turbine fan blade blows out the sucked air from the air outlet at 360 degrees, so that the indoor air is quickly, efficiently and comprehensively ventilated, the air inlet areas of the two fan blades are not interfered with each other, the air flow is stable, and the purpose of reducing noise is achieved.
As the preferable technical measure, the long shaft sequentially penetrates through the centrifugal fan blade and the turbine fan blade, and a first panel is arranged between the centrifugal fan blade and the turbine fan blade, so that the interference of the two fan blades during working is avoided.
As the preferable technical measure, the first opening for ventilation is formed in the middle of the first panel, and the first opening is adjacent to the side wall of the turbine fan blade, and the gas enters the centrifugal fan blade from the first opening, so that the adjacent side wall of the first panel is arranged, the disorder of the gas is avoided, and the disorder of the sucked gas flow is prevented.
As a preferable technical measure, the edge of the first opening is provided with a first taper surface which has a certain taper and is convenient for air flow, so that the gas flow resistance is reduced, and the gas flow is quickened.
As the preferable technical measure, a face guard is covered under the first taper surface, a plurality of hollowed holes are formed in the middle of the face guard, supporting legs are arranged at the edges of the peripheral circles of the face guard, the face guard is connected with the first panel through the supporting legs, a certain distance is kept between the two panels, an air outlet for blowing is formed, and the face guard is arranged to prevent excessive impurities from being inhaled, so that fan blades are worn. The air outlet of the turbine fan blade is discharged from the air outlet, the air outlet is arranged to isolate the air in the room from the air in the inner cavity of the invention, and the air outlet duct of the turbine fan blade is provided to prevent the indoor air from entering the inner cavity of the invention, thereby reducing the air loss, improving the air output of the fan blade, ensuring that the air outlet is smoother and the efficiency is increased.
As the preferable technical measure, a second panel is arranged between the first panel and the mask, the second panel is provided with a second opening for penetrating the turbine fan, the turbine fan protrudes out of the second panel and is covered by the mask, and the second panel is arranged to be convenient for fixing the mask.
As the preferable technical measure, another end connection actuating source of major axis, actuating source is the rotating electrical machines, actuating source installs in the tip of a snail form casing, snail form casing is including being used for holding centrifugal fan leaf hold the chamber and be used for to the outdoor exhaust chamber, and centrifugal fan leaf rotates, and outlying gas flows to the exhaust chamber for hold the air pressure in the intracavity and reduce, advance the gas that drives the face guard below, pass through turbine fan leaf's support, wind channel in proper order, the continuous inflow holds the intracavity, holds the gas in chamber under the drive of centrifugal fan leaf, flows to the exhaust cavity body, and then discharges the outdoor from the exhaust chamber. Simple structure and practicality.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the centrifugal fan blades and the turbine fan blades are arranged, gas is discharged outdoors under the drive of the centrifugal fan blades, the turbine fan blades rotate to blow air indoors, so that the flow of indoor gas is accelerated, the turbine fan blades are adopted, the gas blown out of the turbine fan blades flows to the periphery, the blown gas is prevented from facing the body of a user, the user experience is good, and meanwhile, the flow of indoor gas can be effectively accelerated, so that the indoor air can be quickly, efficiently and comprehensively ventilated.
Further, the air flow and the induced draft air flow of the machine body form indoor circulation, so that the indoor air flow speed is increased. As the centrifugal fan blade and the air inlet channel of the turbine fan blade share the same, the air inlet areas of the centrifugal fan blade and the turbine fan blade still have overlapped parts in the inner space of the turbine fan blade, and air flow turbulence can be caused, so that noise is generated in the air inlet channel. In order to solve the above-mentioned phenomenon, design the annular inner race at the turbine blade, the air current is separated two parts by annular inner race when entering the turbine blade at this moment: the air flow of the outermost ring enters the turbine blades, and the air flow of the middle part directly enters the centrifugal blades through the air inlet of the annular inner ring. The turbine fan blade blows out the sucked air from the air outlet at 360 degrees, so that the indoor air is quickly, efficiently and comprehensively ventilated, the air inlet areas of the two fan blades are not interfered with each other, the air flow is stable, and the purpose of reducing noise is achieved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic diagram of the front structure of the present invention;
FIG. 3 is a schematic view of a portion of the structure of the present invention (excluding the mask, protective shell);
FIG. 4 is a schematic view of an assembly of a fan assembly and turbine blades of the present invention;
FIG. 5 is a schematic diagram of an assembly of a centrifugal fan blade and a turbine fan blade according to the present invention;
FIG. 6 is a schematic view of a turbine blade according to the present invention;
FIG. 7 is an exploded view of a turbine blade and panel assembly of the present invention;
FIG. 8 is a schematic diagram of the operation of the present invention;
fig. 9 is an enlarged partial schematic view at a in fig. 8.
Reference numerals illustrate:
the fan comprises a centrifugal fan blade, a long shaft, a 3-turbine fan blade, a 4-rotating motor, a 5-first panel, a 6-second panel, a 7-mask, an 8-protecting shell, a 9-snail-shaped shell, a 31-support, a 32-fan blade, a 33-annular inner ring, a 341-first side wall, a 342-second side wall, a 35-air inlet, a 51-first opening, a 52-first taper surface, a 61-second opening, a 62-second taper surface, a 71-hollowed hole, 72-supporting legs, a 91-containing cavity, a 92-air exhausting cavity and a 67-air outlet.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
On the contrary, the invention is intended to cover any alternatives, modifications, equivalents, and variations as may be included within the spirit and scope of the invention as defined by the appended claims. Further, in the following detailed description of the present invention, certain specific details are set forth in order to provide a better understanding of the present invention. The present invention will be fully understood by those skilled in the art without the details described herein.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "upper," "lower," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
As shown in fig. 1-7, a double-blade ventilator comprises a ventilator blade and a long shaft 2 for driving the ventilator blade to rotate, wherein one end part of the long shaft 2 is connected with an air inlet fan blade, and the other end part is connected with a driving source. The air inlet fan blade is a turbine fan blade 3 capable of blowing air indoors, and the air exchange fan blade is a centrifugal fan blade 1 capable of exhausting air outdoors. The driving source is a rotating motor 4, and is mounted at the end of a snail-shaped housing 9, and the snail-shaped housing 9 comprises a containing cavity 91 for containing the centrifugal fan blades 1 and an exhaust cavity 92 for exhausting air to the outside. The rotating motor 4, the centrifugal fan blade and the snail-shaped shell 9 form a fan assembly, and the centrifugal fan blade 1 and the turbine fan blade 3 are respectively fixed through a clamp spring, a locating pin and a nut on the long shaft 2, can also be fixed by other axial fixing methods and can rotate together.
The turbine fan blade 3 comprises a support 31 fixedly connected with the long shaft 2, an annular inner ring 33 wound around the support 31, and a fan blade 32 arranged around the outer side surface of the annular inner ring 33 in a circle, the long shaft 2 drives the support 31 and the fan blade 32 to rotate, and the wind direction generated by the fan blade 32 is perpendicular to the extending direction of the long shaft 2.
The fan 32 is obliquely fixed on the annular inner ring 33, the height of the fan is a, the height of the annular inner ring 33 is b, a is larger than b, and the lower end part of the fan 32 protrudes out of the annular inner ring 33. The end of the fan 32 is provided with a side wall for limiting the wind direction, and the side wall includes a first side wall 341 fixedly connected with the annular inner ring 33, and a second side wall 342 forming the air inlet 35 with the annular inner ring 33.
The long shaft 2 sequentially penetrates through the centrifugal fan blade 1 and the turbine fan blade 3, and a first panel 5 is arranged between the centrifugal fan blade 1 and the turbine fan blade 3.
The first panel 5 is provided with a first vent opening 51 in the middle, which is adjacent to the side wall of the turbine blade 32. The first opening edge is provided with a first tapered surface 52 having a taper for facilitating air flow.
A second panel 6 is arranged between the first panel 5 and the face mask 7, the second panel 6 is provided with a second opening 61 for penetrating the turbine fan blade 32, the edge of the second opening is provided with a second taper surface, and the turbine fan blade 32 protrudes out of the second panel 6 and is covered by the face mask 7. A mask 7 is covered under the first taper surface, a plurality of hollowed holes 71 are formed in the middle of the mask 7, supporting legs 72 are arranged on the periphery of the mask, the mask 7 is connected with the second panel 65 through the supporting legs 72, a certain distance is kept between the two panels, and an air outlet 67 for blowing is formed.
The first panel 5, the second panel 6 and the face mask 7 form a panel assembly, and the back of the first panel 5 is provided with a connecting structure corresponding to the snail-shaped shell 9, so that the first panel 5 can be fixed on the fan assembly and is positioned in the middle of the snail-shaped shell 9 and the turbine fan blade 3. The opening of the second panel 6 is provided with a back-off, the spring pressing ring can penetrate through the corresponding opening of the first panel 5 and is fixed on the fan assembly, other spring buttons can be used for fastening the fan assembly, at the moment, the first panel 5, the second panel 6 and the fan assembly are fixed, and then the mask 7 is fixed on the second panel 6 by screws.
The working principle of the invention is as shown in fig. 8 and 9:
when the rotary motor 4 drives the long shaft 2 to rotate, the long shaft 2 drives the centrifugal fan blades 1 and the turbine fan blades 3 to rotate together. Because the first panel 5 and the second panel 6 are provided with the openings with a certain taper, an air channel which is communicated with the accommodating cavity 91 and the exhaust cavity 92 is formed, the centrifugal fan blade 1 rotates, peripheral air flows towards the exhaust cavity 92, so that the air pressure in the accommodating cavity 91 is reduced, the air below the mask 7 is driven to pass through the hollowed-out hole 71, the bracket 31 of the turbine fan blade 32 and the air channel in sequence, and continuously flows into the accommodating cavity 91, and the air in the accommodating cavity 91 is discharged outdoors from the exhaust cavity 92 under the driving of the centrifugal fan blade 1.
The air flow F and the induced draft air flow H of the machine body form indoor circulation, so that the indoor air flow speed is increased. Because the centrifugal fan blade 1 and the air inlet channel of the turbine fan blade 3 are shared, the air inlet areas of the centrifugal fan blade 1 and the turbine fan blade 3 still have overlapped parts in the inner space of the turbine fan blade 3, and air flow turbulence can be caused, so that noise is generated in the air inlet channel. In order to solve the above-mentioned phenomenon, the turbine blade 3 is designed with an annular inner ring 33, and at this time, the air flow H is divided into two parts by the annular inner ring 33 when entering the turbine blade 3: the outermost air flow enters the turbine blades 3, while the intermediate air flow enters the centrifugal blades 1 directly through the annular inner ring 33. The turbine blade 3 blows out the sucked air from the air outlet 360 degrees, so that the indoor air is quickly, efficiently and comprehensively ventilated, the air inlet areas of the two blades are not interfered with each other, the air flow is stable, and the purpose of reducing noise is achieved.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (1)
1. The double-blade ventilator comprises ventilator blades and a long shaft (2) for driving the ventilator blades to rotate, and is characterized in that one end of the long shaft (2) is connected with an air inlet blade, the air inlet blade is a turbine blade (3) capable of blowing air indoors, and the ventilator blade is a centrifugal blade (1) capable of exhausting air outdoors;
the turbine fan blade (3) comprises a bracket (31) fixedly connected with the long shaft (2), an annular inner ring (33) wound around the bracket (31) and a fan blade (32) arranged around the outer side surface of the annular inner ring (33), wherein the long shaft (2) drives the bracket (31) and the fan blade (32) to rotate, and the wind direction generated by the fan blade (32) is perpendicular to the extending direction of the long shaft (2);
the fan blades (32) are obliquely fixed on the annular inner ring (33), the height of the fan blades is a, the height of the annular inner ring (33) is b, a is larger than b, and the lower end parts of the fan blades (32) protrude out of the annular inner ring (33);
the end part of the fan blade (32) is provided with a side wall for limiting the wind direction, and the side wall comprises a first side wall (341) fixedly connected with the annular inner ring (33) and a second side wall (342) forming an air inlet (35) with the annular inner ring (33); the long shaft (2) sequentially penetrates through the centrifugal fan blade (1) and the turbine fan blade (3), and a first panel (5) is arranged between the centrifugal fan blade (1) and the turbine fan blade (3);
a first ventilation opening (51) is formed in the middle of the first panel (5), and is adjacent to the side wall of the turbine fan blade (32); the edge of the first opening is provided with a first taper surface (52) which has a certain taper and is convenient for air flow;
a mask (7) is covered below the first taper surface, a plurality of hollowed holes (71) are formed in the middle of the mask (7), supporting legs (72) are arranged at the edges of the peripheral edges of the hollowed holes, the mask (7) is connected with the first panel (5) through the supporting legs (72), and a certain distance is kept between the two panels to form an air outlet (67) for blowing;
a second panel (6) is arranged between the first panel (5) and the mask (7), the second panel (6) is provided with a second opening (61) for penetrating through the turbine fan blade (32), and the turbine fan blade (32) protrudes out of the second panel (6) and is covered by the mask (7);
the other end part of the long shaft (2) is connected with a driving source, the driving source is a rotating motor (4), the driving source is arranged at the end part of a snail-shaped shell (9), and the snail-shaped shell (9) comprises a containing cavity (91) for containing the centrifugal fan blade (1) and an exhaust cavity (92) for exhausting air to the outside;
the first panel, the second panel and the face mask form a panel assembly, the back of the first panel is provided with a connecting structure corresponding to the snail-shaped shell, and the first panel is fixed on the fan assembly and is positioned in the middle of the snail-shaped shell and the turbine fan blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711172905.7A CN108105122B (en) | 2017-11-22 | 2017-11-22 | Double-blade ventilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711172905.7A CN108105122B (en) | 2017-11-22 | 2017-11-22 | Double-blade ventilator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108105122A CN108105122A (en) | 2018-06-01 |
| CN108105122B true CN108105122B (en) | 2024-03-29 |
Family
ID=62206597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711172905.7A Active CN108105122B (en) | 2017-11-22 | 2017-11-22 | Double-blade ventilator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108105122B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117146352B (en) * | 2023-09-26 | 2024-03-26 | 北京欣智恒科技股份有限公司 | Energy-saving ventilation equipment for high-rise building |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11230567A (en) * | 1997-12-12 | 1999-08-27 | Daikin Ind Ltd | Air-conditioner |
| CN2481882Y (en) * | 2001-03-23 | 2002-03-13 | 方灿榆 | Pipeline type multipurpose two-way scavenger fan |
| CN1525110A (en) * | 2003-09-15 | 2004-09-01 | 海尔集团公司 | Forced ventilation air conditioner using single electric machine and bilobed wheel blower fan |
| CN102003747A (en) * | 2009-08-28 | 2011-04-06 | 乐金电子(天津)电器有限公司 | Movable type air conditioner |
| CN104676765A (en) * | 2014-11-14 | 2015-06-03 | 胡光南 | Indoor air purifier with indoor and outdoor air exchange function |
| CN207420929U (en) * | 2017-11-22 | 2018-05-29 | 奥普家居股份有限公司 | A kind of Dual-blade ventilation fan |
-
2017
- 2017-11-22 CN CN201711172905.7A patent/CN108105122B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11230567A (en) * | 1997-12-12 | 1999-08-27 | Daikin Ind Ltd | Air-conditioner |
| CN2481882Y (en) * | 2001-03-23 | 2002-03-13 | 方灿榆 | Pipeline type multipurpose two-way scavenger fan |
| CN1525110A (en) * | 2003-09-15 | 2004-09-01 | 海尔集团公司 | Forced ventilation air conditioner using single electric machine and bilobed wheel blower fan |
| CN102003747A (en) * | 2009-08-28 | 2011-04-06 | 乐金电子(天津)电器有限公司 | Movable type air conditioner |
| CN104676765A (en) * | 2014-11-14 | 2015-06-03 | 胡光南 | Indoor air purifier with indoor and outdoor air exchange function |
| CN207420929U (en) * | 2017-11-22 | 2018-05-29 | 奥普家居股份有限公司 | A kind of Dual-blade ventilation fan |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108105122A (en) | 2018-06-01 |
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