CN109488637A - Wind wheel, fan and range hood - Google Patents
Wind wheel, fan and range hood Download PDFInfo
- Publication number
- CN109488637A CN109488637A CN201811348278.2A CN201811348278A CN109488637A CN 109488637 A CN109488637 A CN 109488637A CN 201811348278 A CN201811348278 A CN 201811348278A CN 109488637 A CN109488637 A CN 109488637A
- Authority
- CN
- China
- Prior art keywords
- wind wheel
- enclosure
- blade
- inner fovea
- wheel according
- Prior art date
- 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.)
- Pending
Links
- 238000000926 separation method Methods 0.000 abstract description 7
- 239000000779 smoke Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000010959 steel Substances 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
- 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
-
- 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
-
- 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
- F04D29/30—Vanes
-
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
-
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/666—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by means of rotor construction or layout, e.g. unequal distribution of blades or vanes
-
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence
-
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a wind wheel, a fan and a range hood, wherein the wind wheel comprises a first enclosure, a second enclosure and blades fixed between the first enclosure and the second enclosure, the cross section of each blade is in an arc shape recessed from inside to outside, a plurality of inner concave parts distributed at intervals are arranged on the inner side surface of each blade, and outer convex parts are formed on the outer side surface of each blade at positions corresponding to the inner concave parts. The design is reasonable and ingenious, the boundary layer separation phenomenon can be effectively slowed down, the generation of vortex is reduced, and the noise of the wind wheel is further reduced.
Description
Technical field
The present invention relates to kitchen appliance technical field more particularly to a kind of wind wheels, blower and range hood.
Background technique
Range hood has been the essential kitchen appliance product of average family, in order to will fast and effeciently produce in cooking process
Raw oil smoke is discharged outdoor, it is desirable that the exhaust air rate and wind pressure of range hood are as large as possible, this also results in range hood noise
Bigger situation, range hood main noise are divided into mechanical noise and aerodynamic noise, and mechanical noise is mainly smoke machine
The mechanical noise that vibration generates when operation, and aerodynamic noise is mainly produced by the vortex in the rotation and runner of wind wheel
Noise.
Mechanical noise is mainly wind wheel due to traditional range hood main motion parts, and wind wheel generally uses several
The sheet metal of uniform thickness is stamped to form, and blade is rigidly poor, and in the fabrication process additionally, due to wind wheel, each blade has weight difference
It is different, cause wind wheel weight circumferentially to distribute unevenly, wind wheel waits be easy to produce vibration when rotating at high speed, to generate machinery
Noise；When the vibration of another aspect wind wheel is transferred to other positions of smoke machine, the components of rigid difference can also generate mechanical noise；
Furthermore smoke machine is mounted on wall, and the vibration that wind wheel operating generates can cause smoke machine and mechanical shock noise between the walls.
Aerodynamic noise is mainly the strike air of the blade cyclic on impeller, and gas pressure pulsation is caused to be produced
Raw noise.Often there is separation of flow area in the exit Ye Dao of wind wheel, eddy current crack caused by air-flow is uneven.Wind wheel Ye Daonei
Since pressure face and suction surface pressure unevenly cause Ye Daonei swirl ratio more, vortex not only generates noise, and can cause
Smoke machine efficiency is relatively low.
For range hood, aerodynamic noise is far longer than mechanical noise.In the related technology, range hood is dropped in volute tongue
Make an uproar aspect study comparison it is more, and wind wheel in terms of study it is fewer, range hood wind wheel blade use mostly steel plate punched at
Type is designed as single curved blade, and this wind wheel Ye Daonei gas pressure distribution is very uneven, and swirl ratio is more, resulting noise
It is bigger, and sound is more unpleasant to hear.
Summary of the invention
The present invention is directed to one of solve the problems, such as present in existing the relevant technologies at least to a certain extent, for this purpose, this hair
Bright to propose a kind of wind wheel, design is reasonable, ingenious, can effectively slow down boundary layer separation, reduce the generation of vortex, further
Reduce the noise of wind wheel.
The present invention also proposes a kind of blower, can reinforce the rigidity of wind wheel, reduces the vibration that blade is generated due to rotation, thus
Reduce noise caused by blade vibration.
In addition, damping noise reduction, further improve user uses body the invention also provides a kind of range hood
It tests.
Above-mentioned first purpose is achieved by the following technical solution:
A kind of wind wheel, including the first enclosure, the second enclosure and be fixed between first enclosure and second enclosure
Blade, the cross section of the blade is in that the inner surface of the blade is provided with several by the interior arc being recessed outward
Every the inner fovea part of distribution, the blade outer surface correspond to each inner fovea part position at form male part.
In some embodiments, the cross section of the male part is arc-shaped.
In some embodiments, the cross section of the inner fovea part is arc-shaped, round, oval, triangle or rectangle.
In some embodiments, the cross section of the inner fovea part is arc-shaped, and the radius of the inner fovea part is greater than 1mm and small
In 8mm.
In some embodiments, the depth of the inner fovea part is greater than 0.2mm and to be less than 2mm.
In some embodiments, the height of the male part is greater than 0.2mm and to be less than 2mm.
In some embodiments, the frontier distance per two adjacent inner fovea parts is greater than 1mm and to be less than 4mm.
In some embodiments, it is respectively arranged with locating plate at the both ends of the blade, in first enclosure and institute
The card slot being respectively arranged in the second enclosure with locating plate cooperation is stated, is cooperated by the locating plate and the card slot by institute
Blade is stated to be fixed between first enclosure and second enclosure.
It in some embodiments, further include having mid-game, the mid-game is set to first enclosure and described second and encloses
Between circle, the mounting hole with blade cooperation is offered in the mid-game, the blade is arranged in the mounting hole.
Above-mentioned second purpose is achieved by the following technical solution:
A kind of blower, comprising:
Spiral case, the spiral case have accommodating chamber；
Wind wheel, the wind wheel are that as above any wind wheel, the wind wheel are arranged in the accommodating chamber.
Above-mentioned third purpose is achieved by the following technical solution:
A kind of range hood, including blower as described above.
Compared with prior art, the present invention at least having the effect that
1, the present invention proposes a kind of wind wheel, and design is reasonable, ingenious, can effectively slow down boundary layer separation, reduces whirlpool
The generation of stream further decreases the noise of wind wheel.
2, the present invention proposes a kind of wind wheel, can reinforce the rigidity of wind wheel, reduces the vibration that blade is generated due to rotation, thus
Reduce noise caused by blade vibration.
3, the invention also provides a kind of range hood, damping noise reduction further improves the usage experience of user.
Other beneficial outcomes of the invention will be explained in conjunction with attached drawing in a specific embodiment.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of wind wheel in the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of blade in the embodiment of the present invention；
Fig. 3 is the back view of blade in the embodiment of the present invention；
Fig. 4 is the sectional view of blade in the embodiment of the present invention；
Fig. 5 is the partial enlargement diagram of the part A in Fig. 4.
Specific embodiment
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Embodiment one: a kind of as shown in Figures 1 to 5, wind wheel, including the first enclosure 1, the second enclosure 2 and it is fixed on the
Blade 3 between one enclosure 1 and the second enclosure 2, the cross section of blade 3 are in by the interior arc being recessed outward, in the inside of blade 3
Surface is provided with several inner fovea parts 4 being spaced apart, blade 3 outer surface correspond to each inner fovea part 4 position at formed
Male part 5.
In the present embodiment, wind wheel includes the first enclosure 1 and the second enclosure 2, and is fixed on the first enclosure 1 and encloses with second
Several blades 3 between circle 2, one end of blade 3 are connect with the first enclosure 1, and the other end is connect with the second enclosure 2, blade 3
It is positioned apart between the first enclosure 1 and the second enclosure 2, blade 3 preferentially uses 60, but is not limited to 60, may be used also
The blade 3 of other more particularly suitable quantity is selected according to actual needs.Wind wheel at runtime, gas flow when due to pressure face and suction
The pressure difference in power face, the boundary layer on working face be it is unstable, air-flow is easy to appear separation flowing, the phenomenon that generating whirlpool,
The wind wheel of the present embodiment on the inner surface of blade 3 by being provided with several inner fovea parts 4 being spaced apart, in the outer of blade 3
Side surface, which corresponds to, forms male part 5 at the position of each inner fovea part 4, the male part 5 that uniformly and is continuously arranged by these and interior
Recess portion 4 can effectively slow down boundary layer separation, reduce the generation of vortex, further decrease the noise of wind wheel.
Further, the cross section for leading to male part 5 is arc-shaped, and design is reasonable, ingenious, and the rigidity of wind wheel can be improved, subtract
The vibration that blade 3 is generated due to rotation is lacked.
Preferably, the circular in cross-section of inner fovea part 4, ellipse, triangle or rectangle, structure are simple, compact.
Specifically, the circular in cross-section of inner fovea part 4, the radius of inner fovea part 4 are greater than 1mm and are less than 8mm.
Preferably, the depth of inner fovea part 4 is greater than 0.2mm and to be less than 2mm.
Preferably, the height of male part 5 is greater than 0.2mm and to be less than 2mm.
Further, the frontier distance per two adjacent inner fovea parts 4 is greater than 1mm and to be less than 4mm.
In the present embodiment, male part 5 is formed by interior punching press outward on the surface of blade 3, the cross section of male part 5 is in
What arc and uniformly continuous were distributed, so that inner fovea part 4 corresponding to male part 5 is equally uniformly to connect at the back side of blade 3
Continuous distribution, the frontier distance per two adjacent inner fovea parts 4 are greater than 1mm and to be less than 4mm.It is fallen for it the cross section of inner fovea part 4
Shadow area, circular in cross-section, ellipse, triangle or rectangle, but it is not limited to above-mentioned figure, it can also be according to practical need
Select other more particularly suitable figures such as square.Further, the cross section of the inner fovea part 4 of the present embodiment is in preferably round
Shape, 4 radius of inner fovea part are greater than 1mm and are less than 8mm, and the depth of inner fovea part 4 is greater than 0.2mm and to be less than 2mm, and inner fovea part 4 is corresponding
Male part 5 its by blade 3 outer surface to male part 5 highest position height be greater than 0.2mm and be less than 2mm.
Preferably, it is respectively arranged with locating plate 6 at the both ends of blade 3, is set respectively in the first enclosure 1 and the second enclosure 2
It is equipped with the card slot cooperated with locating plate 6, is cooperated by locating plate 6 and card slot and blade 3 is fixed on the first enclosure 1 and the second enclosure
Between 2, structure is simple, reliable, blade 3 can be fixed on first securely after being clasped by locating plate 6 and card slot
Between enclosure 1 and the second enclosure 2.
It specifically, further include having mid-game 7, mid-game 7 is set between the first enclosure 1 and the second enclosure 2, is opened in mid-game 7
Equipped with the mounting hole cooperated with blade 3, blade 3 is arranged in mounting hole, and design rationally, allows blade 3 stronger
First enclosure 1 and the second enclosure 2 are installed together by ground.
In the present embodiment, wind wheel further includes having mid-game 7, and mid-game 7 is set between the first enclosure 1 and the second enclosure 2,
Card slot, mounting hole and the card slot installed convenient for blade 3 are successively offered in first enclosure 1, mid-game 7 and the second enclosure 2, in blade
3 both ends are respectively arranged with the locating plate 6 for connection of working in coordination with the card slot in the first enclosure 1, the second enclosure 2, and the one of blade 3
End is cooperatively connected with the card slot in the first enclosure 1, and the other end connects after being arranged in mounting hole with the card slot cooperation in the second enclosure 2
It connects.For the ease of blade 3 to be fixed between the first enclosure 1 and the second enclosure 2, close to the first enclosure 1, mid-game 7 on blade 3
Be not provided at the position of the second enclosure 2 male part 5 and inner fovea part 4 with by the surface of blade 3 keep smooth panel state, make
It is easy to assembly to obtain blade 3, and then the connection after its installation is more closely.
Embodiment two: as shown in Figures 1 to 5, a kind of blower, comprising: spiral case, spiral case have accommodating chamber；Wind wheel, wind wheel
For wind wheel described in embodiment one, the wind wheel is arranged in accommodating chamber.
Identical with implementing one to be, the blower of the present embodiment uses wind wheel described in embodiment one, and by above-mentioned wind
Wheel is mounted in the accommodating chamber of spiral case, by being provided with the male part 5 of uniformly continuous in the outer surface of blade 3, can effectively be subtracted
There are segregation phenomenons in boundary layer on slow working face, while reducing the generation of vortex, reduce the aerodynamic noise of wind wheel, but also
It can reinforce the rigidity of wind wheel, the vibration that blade 3 is generated due to rotation be reduced, so that reducing blade 3 vibrates generated noise.
Embodiment three: a kind of as shown in Figures 1 to 5, range hood, including blower described in embodiment two, pass through by
Above-mentioned assembling is in range hood, when range hood may make to run, the phenomenon that can effectively slowing down boundary layer separation, subtracts
Small vortex generates, and then achievees the purpose that vibration and noise reducing, further improves the usage experience of user.
Above-described is only some embodiments of the present invention.For those of ordinary skill in the art, not
Under the premise of being detached from the invention design, various modifications and improvements can be made, these belong to protection model of the invention
It encloses.
Claims (11)
1. a kind of wind wheel, including the first enclosure (1), the second enclosure (2) and it is fixed on first enclosure (1) and is enclosed with described second
Enclose the blade (3) between (2), which is characterized in that the cross section of the blade (3) is in by the interior arc being recessed outward, described
The inner surface of blade (3) is provided with several inner fovea parts (4) being spaced apart, corresponding every in the outer surface of the blade (3)
Male part (5) are formed at the position of a inner fovea part (4).
2. a kind of wind wheel according to claim 1, which is characterized in that the cross section of the male part (5) is arc-shaped.
3. a kind of wind wheel according to claim 1, which is characterized in that circular in cross-section, the ellipse of the inner fovea part (4)
Shape, triangle or rectangle.
4. a kind of wind wheel according to claim 1, which is characterized in that the circular in cross-section of the inner fovea part (4), it is described
The radius of inner fovea part (4) is greater than 1mm and is less than 8mm.
5. a kind of wind wheel according to claim 1, which is characterized in that the depth of the inner fovea part (4) be greater than 0.2mm and
Less than 2mm.
6. a kind of wind wheel according to claim 1, which is characterized in that the height of the male part (5) be greater than 0.2mm and
Less than 2mm.
7. a kind of wind wheel according to claim 1, which is characterized in that the boundary per two adjacent inner fovea parts (4)
Distance is greater than 1mm and less than 4mm.
8. a kind of wind wheel according to any one of claims 1 to 7, which is characterized in that set respectively at the both ends of the blade (3)
Locating plate (6) are equipped with, is respectively arranged on first enclosure (1) and second enclosure (2) and matches with the locating plate (6)
The card slot of conjunction, by the locating plate (6) and the card slot cooperate by the blade (3) be fixed on first enclosure (1) and
Between second enclosure (2).
9. a kind of wind wheel according to any one of claims 1 to 7, which is characterized in that further include having mid-game (7), the mid-game
(7) it is set between first enclosure (1) and second enclosure (2), is offered on the mid-game (7) and the blade
(3) mounting hole cooperated, the blade (3) are arranged in the mounting hole.
10. a kind of blower characterized by comprising
Spiral case, the spiral case have accommodating chamber；
Wind wheel, the wind wheel are that any wind wheel, the wind wheel are arranged in the accommodating chamber in claim 1-9.
11. a kind of range hood, which is characterized in that including blower as claimed in claim 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811348278.2A CN109488637A (en) | 2018-11-13 | 2018-11-13 | Wind wheel, fan and range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811348278.2A CN109488637A (en) | 2018-11-13 | 2018-11-13 | Wind wheel, fan and range hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109488637A true CN109488637A (en) | 2019-03-19 |
Family
ID=65695593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811348278.2A Pending CN109488637A (en) | 2018-11-13 | 2018-11-13 | Wind wheel, fan and range hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109488637A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374918A (en) * | 2019-07-31 | 2019-10-25 | 宁波方太厨具有限公司 | A kind of impeller and its control method for centrifugal blower |
| CN114962288A (en) * | 2021-02-22 | 2022-08-30 | 约克广州空调冷冻设备有限公司 | Impeller for centrifugal fan and centrifugal fan |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005030444A1 (en) * | 2004-07-15 | 2006-02-09 | Spiess, Heike | Axial blower especially for cooling computers has the fan blades and hub with a pattern of raised profiles or dimples to reduce air drag |
| CN101910645A (en) * | 2008-01-07 | 2010-12-08 | 大金工业株式会社 | Propeller fan |
| CN106499663A (en) * | 2015-09-08 | 2017-03-15 | 弗兰克爱尔公司 | It is suitable to the blade of variablepiston fan |
| CN209510717U (en) * | 2018-11-13 | 2019-10-18 | 华帝股份有限公司 | Wind wheel, fan and range hood |
-
2018
- 2018-11-13 CN CN201811348278.2A patent/CN109488637A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005030444A1 (en) * | 2004-07-15 | 2006-02-09 | Spiess, Heike | Axial blower especially for cooling computers has the fan blades and hub with a pattern of raised profiles or dimples to reduce air drag |
| CN101910645A (en) * | 2008-01-07 | 2010-12-08 | 大金工业株式会社 | Propeller fan |
| CN106499663A (en) * | 2015-09-08 | 2017-03-15 | 弗兰克爱尔公司 | It is suitable to the blade of variablepiston fan |
| CN209510717U (en) * | 2018-11-13 | 2019-10-18 | 华帝股份有限公司 | Wind wheel, fan and range hood |
Non-Patent Citations (1)
| Title |
|---|
| 西安交通大学: "《制冷离心式压缩机》", 30 June 1989, 机械工业出版社, pages: 218 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374918A (en) * | 2019-07-31 | 2019-10-25 | 宁波方太厨具有限公司 | A kind of impeller and its control method for centrifugal blower |
| CN114962288A (en) * | 2021-02-22 | 2022-08-30 | 约克广州空调冷冻设备有限公司 | Impeller for centrifugal fan and centrifugal fan |
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