CN108443226A - A kind of ladder volute structure and centrifugal blower and blower device - Google Patents
A kind of ladder volute structure and centrifugal blower and blower device Download PDFInfo
- Publication number
- CN108443226A CN108443226A CN201810486698.0A CN201810486698A CN108443226A CN 108443226 A CN108443226 A CN 108443226A CN 201810486698 A CN201810486698 A CN 201810486698A CN 108443226 A CN108443226 A CN 108443226A
- Authority
- CN
- China
- Prior art keywords
- volute
- spiral case
- volute tongue
- ladder
- side wall
- 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.)
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Links
- 210000002105 tongue Anatomy 0.000 claims abstract description 113
- 241000237858 Gastropoda Species 0.000 claims abstract description 11
- 210000000867 larynx Anatomy 0.000 abstract description 5
- 238000002271 resection Methods 0.000 abstract description 3
- 238000010992 reflux Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 238000000926 separation method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Classifications
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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
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
-
- 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
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/422—Discharge tongues
-
- 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
Abstract
A kind of ladder volute structure of present invention offer and centrifugal blower and blower device, in ladder volute structure, several described volute tongues, stepped setting between the spiral case volute tongue side wall surface, extend to the thickness direction of the shell along the air inlet, distance of the spiral case volute tongue side wall surface apart from fan blade shroud gradually increases, so that near fan blade shroud on height spiral case section, spiral case diffuser overall width reduces, i.e. volute tongue and spiral case volute tongue side wall surface closer to snail larynx side wall surface at, due to being also high-speed flow impact close to volute tongue side wall surface, thus will not be as conventional centrifugal spiral case, generate negative pressure region, to contain the generation of gyration airflow, to cut off the vortex raceway zone of conventional centrifugal spiral case diffuser.Near fan blade shroud after the gyration airflow Regional resection of height spiral case section, eliminates gyration airflow and normally do work to spiral case the interference of outlet air, to improve air quantity, while eddy current crack also disappears therewith, to reduce noise.
Description
Technical field
The present invention relates to volute structure technical fields, and in particular to a kind of ladder-like spiral case and comprising its centrifugal blower and
Blower device.
Background technology
The centrifugal blower provided in the prior art, as shown in Figure 1, its volute tongue and diffuser shape, wind is arrived in fan blade shroud 7
It is usually identical bulbous bow profile on 8 direction of leaf hub disk, or variation is less.According to centrifugal blower air-flow flowing law, air-flow
Collect at fan blade shroud it is less, from blade near fan blade shroud come out air velocity it is relatively low.In addition apart from 4 distance of volute tongue compared with
Far, when air-flow is flow at volute tongue, impact dynamics is insufficient, and separation water conservancy diversion can not be effectively performed.
Wherein at runtime, airflow reflux often is generated near fan blade shroud, air quantity is caused to reduce, made to reduce spiral case
Effect rate；Simultaneously as the presence of airflow reflux, airflow reflux is caused to form vortex, Jin Erzeng at diffuser inside the spiral case
Add vortex noise.
Invention content
Therefore, the technical problem to be solved in the present invention is to overcome fan blade shroud position in spiral case in the prior art to be easy
Airflow reflux is generated, mechanical efficiency is influenced or generates the defect of vortex noise.
For this purpose, the present invention provides a kind of ladder volute structure, including：Shell is provided with air inlet on the shell and goes out
Air port；The multiple volute tongues being arranged side by side along spiral case thickness direction；The spiral case volute tongue side wall surface consistent with the volute tongue quantity, setting
At spiral case diffusion fragment position, each spiral case volute tongue side wall surface is connected with corresponding each volute tongue respectively；If
A dry stepped setting between the volute tongue, the spiral case volute tongue side wall surface, along the air inlet to the thickness of the shell
Direction extends, and distance of the spiral case volute tongue side wall surface apart from fan blade shroud gradually increases.
Extend to the thickness direction of the shell along the air inlet, the spiral case volute tongue side wall surface and air outlet plane holder
Angle α is gradually increased.The width H of the spiral case volute tongue side wall surface and the volute tongue is gradually reduced.The width of the air outlet of the volute tongue
Degree B is gradually increased, and the ratio range of the width B of the air outlet of the two neighboring volute tongue is 1/2-4/5.Of the volute tongue
Aperture size S gradually increases, while the ratio range of the opening width size of the two neighboring volute tongue is 1/2-3/4.
In the present invention, the volute tongue is at least one of forms such as blind slot, oblique volute tongue, straight volute tongue.
Present invention simultaneously provides a kind of centrifugal blowers, including above described in ladder volute structure；And it is arranged in institute
State the fan blade at position corresponding with the air inlet inside ladder volute structure.
Present invention simultaneously provides a kind of blower devices, including the centrifugal blower being provided above.
Technical solution of the present invention has the following advantages that：
1. ladder volute structure provided by the invention is in rank between several described volute tongues, the spiral case volute tongue side wall surface
Scalariform is arranged, and extends to the thickness direction of the shell along the air inlet, the spiral case volute tongue side wall surface is apart from fan blade shroud
Distance gradually increase.
Volute structure in the prior art is logical in fan blade shroud to fan blade hub disk direction upper volute volute tongue side wall and volute tongue
It is often identical bulbous bow profile, or variation is less.Air-flow collects less at fan blade shroud, goes out from blade near fan blade shroud
The air velocity come is relatively low.In addition farther out apart from fan tongue distance, when air-flow is flow at volute tongue, impact dynamics is insufficient, Wu Fayou
Carry out separation water conservancy diversion to effect.Additionally due in the same high plane of leaf, it is larger to go out wind velocity close to spiral case snail larynx side wall surface, leads to snail
Shell volute tongue side wall surface generates negative pressure, to cause airflow reflux, air-flow to generate reflux, on the one hand reduces air quantity, reduces spiral case
Mechanical efficiency；On the other hand, reflux produces larger vortex noise.
Step-shaped spiral casing structure provided by the invention extends along the air inlet to the thickness direction of the shell, described
Distance of the spiral case volute tongue side wall surface apart from fan blade shroud gradually increases.So that near fan blade shroud on height spiral case section, spiral case
Diffuser overall width reduces, i.e., volute tongue and spiral case volute tongue side wall surface closer to snail larynx side wall surface at, due to close to volute tongue side
Wall surface is also high-speed flow impact, so that negative pressure region is generated, as conventional centrifugal spiral case to contain convolution gas
The generation of stream, to cut off the vortex raceway zone of conventional centrifugal spiral case diffuser.Height spiral case section is returned near fan blade shroud
After rotational gas flow Regional resection, eliminates normally do work to the spiral case interference of outlet air of gyration airflow and promote snail to improve air quantity
The mechanical efficiency of shell.On the other hand, after gyration airflow is eliminated, the eddy current crack generated also disappears therewith, makes an uproar to reduce
Sound.
2. ladder volute structure provided by the invention extends along the air inlet to the thickness direction of the shell, described
Spiral case volute tongue side wall surface is gradually increased with air outlet plane included angle α.
Volute tongue far from air inlet position, high velocity stream angle of attack are more prone to the side wall surface of volute tongue, at this time high speed gas
When stream is blown out from spiral case diffuser, the generation of reflux can avoid.
3. ladder volute structure provided by the invention extends along the air inlet to the thickness direction of the shell, described
The width B of the air outlet of volute tongue is gradually increased, and the ratio range of the width B of the air outlet of the two neighboring volute tongue is 1/2-
4/5。
When the value value is too small, be less than 1/2, the width of air outlet is smaller to cause outlet air open area insufficient, air-flow can not and
When fully blow out.It, can be due to side close to the part air outlet region of volute tongue side wall surface when the value value is too big, is more than 4/5
The impact of side high-speed flow influences, and causes backflow phenomenon and generates.
4. ladder volute structure provided by the invention extends along the air inlet to the thickness direction of the shell, described
The opening width size S of volute tongue gradually increases, and the ratio range of the opening width size of the two neighboring volute tongue is 1/2-3/4.It is logical
Cross above-mentioned numberical range, it can be ensured that the volute tongue at air inlet position can be carried out efficiently air-flow separation, i.e., will be big
Fraction is detached to diffuser, while can reduce vortex noise.
5. ladder volute structure provided by the invention, air velocity is higher at volute tongue, and high-speed flow mutually hits meeting with volute tongue
The larger turbulent flow of intensity is generated, blind slot is opened up and turbulence intensity can be dissipated and weakened, noise is vortexed at volute tongue to reduce.At volute tongue
When being vortexed high noise, it is usually expressed as Rotation Noise, selects oblique volute tongue, improves noise, such as Rotation Noise is little herein, can use straight
Volute tongue.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is the structural schematic diagram of spiral case in the centrifugal blower provided in the prior art；
Fig. 2 is the structural schematic diagram of the ladder volute structure provided in embodiment 1；
Fig. 3 is the main diagram of the ladder volute structure provided in embodiment 1；
Fig. 4 is the schematic diagram of the width of the air outlet of volute tongue in the ladder volute structure provided in embodiment 1；
Fig. 5 is the knot of spiral case volute tongue side wall surface and air outlet plane included angle α in the ladder volute structure provided in embodiment 1
Structure schematic diagram；
Fig. 6 is the knot of the width H of spiral case volute tongue side wall surface and the volute tongue in the ladder volute structure provided in embodiment 1
Structure schematic diagram；
Fig. 7 is the structural schematic diagram of centrifugal blower provided by the invention.
Reference sign：
1- shells；2- air inlets；3- air outlets；4- volute tongues；The first volute tongues of 41-；The second volute tongues of 42-；5- spiral case volute tongues side
Wall surface；51- the first spiral case volute tongue side wall surfaces；52- the second spiral case volute tongue side wall surfaces；6- spiral case diffusers；7- fan blade shrouds；8- wind
Leaf hub disk；9- snail larynxs；10- fan blades.
Specific implementation mode
Technical scheme of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
The every other embodiment that personnel are obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for the description present invention and simplify description, do not indicate or imply the indicated device or element must have a particular orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for description purposes only, and is not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
Can also be electrical connection to be mechanical connection；It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
As long as in addition, technical characteristic involved in invention described below different embodiments non-structure each other
It can be combined with each other at conflict.
Embodiment 1
The present embodiment provides a kind of ladder volute structures, as shown in Fig. 2, including：Shell 1, be provided on the shell 1 into
Air port 2 and air outlet 3；The multiple volute tongues 4 being arranged side by side along spiral case thickness direction；The spiral case snail consistent with 4 quantity of the volute tongue
Tongue side wall surface 5 is arranged at 6 position of spiral case diffuser, each spiral case volute tongue side wall surface 5 respectively with corresponding each institute
Volute tongue 4 is stated to be connected；Stepped setting between several described volute tongues 4, the spiral case volute tongue side wall surface 5, along the air inlet
Mouth 2 extends to the thickness direction of the shell 1, and distance of the spiral case volute tongue side wall surface 5 apart from fan blade shroud 7 gradually increases.
The ladder volute structure used in the present embodiment, as shown in Fig. 2, its step number is 2.Specifically, in the present embodiment
The volute tongue 4 of offer includes the first volute tongue 41 and the second volute tongue 42.First volute tongue, 41 upper surface has step, step to connect the second snail
Tongue 42, this is a ladder.Consider in the present embodiment and make precision and processing cost, two ranks are arranged in final choice
Ladder.
In the present embodiment, distance of the first spiral case volute tongue side wall surface 51 apart from fan blade shroud 7 is greater than the second spiral case
Distance of the volute tongue side wall surface 52 apart from fan blade shroud 7.Above-mentioned set-up mode makes the height spiral case section nearby of fan blade shroud 7
On, 6 overall width of spiral case diffuser reduces, i.e. the second volute tongue 42 and the second spiral case volute tongue side wall surface 52 are closer to 9 side of snail larynx
At wall surface, due to being also high-speed flow impact close to 4 side wall surface of volute tongue, to be generated negative as conventional centrifugal spiral case
Intermediate pressure section, to contain the generation of gyration airflow, to cut off the vortex raceway zone of conventional centrifugal spiral case diffuser 6.Wind
Leaf shroud 7 is nearby after the gyration airflow Regional resection of height spiral case section, eliminates gyration airflow and normally does work outlet air to spiral case
Interference, to improve air quantity, promotes the mechanical efficiency of spiral case.On the other hand, after gyration airflow is eliminated, the vortex generated is made an uproar
Sound also disappears therewith, to reduce noise.
As shown in figure 5, the first spiral case volute tongue side wall surface 51 and 3 plane included angle α of air outlet in the present embodiment1More than
Two spiral case volute tongue side wall surface 52 and 3 plane included angle α of air outlet2。
Meanwhile first spiral case volute tongue side wall surface 51 and the first volute tongue 41 width H1It is less than the first spiral case volute tongue side wall surface
51 and first volute tongue 41 width H2.Simultaneously as shown in fig. 6, the width B1 of the air outlet 3 of first volute tongue 41 is more than second
The width B2 of the air outlet 3 of volute tongue 42.
In the present embodiment, as shown in figure 3, the opening width size S2 of second volute tongue 42 is less than first volute tongue 41
The ratio range of opening width size S1, S2/S1 are 1/2-3/4.Specifically, in the present embodiment, as shown in figure 3, opening width size
It is defined as follows：The length of 4 molded line two end point connecting line of volute tongue.
In the present embodiment, in order to realize that adaptability of the spiral case under different working conditions, the volute tongue 4 are blind slot, oblique snail
At least one of forms such as tongue 4, straight volute tongue 4.
Embodiment 2
The present embodiment provides a kind of centrifugal blowers, as shown in fig. 7, comprises the ladder volute structure described in embodiment 1；With
And the fan blade 10 at the position corresponding with the air inlet 2 inside the ladder volute structure is set, on ladder volute structure
It is correspondingly arranged on fan blade shroud 7 and fan blade hub disk 8, drives air to be flowed into ladder volute structure from air inlet 2 after fan blade rotation
Then portion drives wind to be flowed out from air outlet 3.
The centrifugal blower provided in the present embodiment uses ladder volute structure, and compare conventional centrifugal volute structure wind
Amount can promote 80-150m3/ h, lower noise 0.8-1.7dB.
Embodiment 3
The present embodiment provides the centrifugal blowers provided in a kind of blower device, including at least one set of embodiment 2.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (10)
1. a kind of ladder volute structure, which is characterized in that including：
Shell (1) is provided with air inlet (2) and air outlet (3) on the shell (1)；
The multiple volute tongues (4) being arranged side by side along spiral case thickness direction；
The spiral case volute tongue side wall surface (5) consistent with the volute tongue (4) quantity is arranged at spiral case diffuser (6) position, Mei Gesuo
Spiral case volute tongue side wall surface (5) is stated respectively to be connected with corresponding each volute tongue (4)；
Stepped setting between several described volute tongues (4), the spiral case volute tongue side wall surface (5), along the air inlet (2) to
The thickness direction of the shell (1) extends, and distance of the spiral case volute tongue side wall surface (5) apart from fan blade shroud (7) gradually increases.
2. ladder volute structure according to claim 1, which is characterized in that along the air inlet (2) to the shell (1)
Thickness direction extend, the spiral case volute tongue side wall surface (5) gradually increases with air outlet (3) plane included angle α.
3. ladder volute structure according to claim 1 or 2, which is characterized in that along the air inlet (2) to the shell
(1) thickness direction extends, and the width H of the spiral case volute tongue side wall surface (5) and the volute tongue (4) is gradually reduced.
4. ladder volute structure according to claim 3, which is characterized in that along the air inlet (2) to the shell (1)
Thickness direction extend, the width B of the air outlet (3) of the volute tongue (4) gradually increases.
5. ladder volute structure according to claim 4, which is characterized in that the air outlet of the two neighboring volute tongue (4)
(3) ratio range of width B is 1/2-4/5.
6. according to any ladder volute structures of claim 1-5, which is characterized in that along the air inlet (2) to described
The thickness direction of shell (1) extends, and the opening width size S of the volute tongue (4) gradually increases.
7. ladder volute structure according to claim 6, which is characterized in that the opening width of the two neighboring volute tongue (4)
The ratio range of size is 1/2-3/4.
8. according to any ladder volute structures of claim 1-7, which is characterized in that the volute tongue (4) is blind slot, oblique snail
At least one of forms such as tongue, straight volute tongue.
9. a kind of centrifugal blower, which is characterized in that including
Ladder volute structure according to any one of claims 1-8；
Position corresponding with the air inlet (2) is arranged inside the ladder volute structure in fan blade (10).
10. a kind of blower device, which is characterized in that including the centrifugal blower described at least one claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810486698.0A CN108443226A (en) | 2018-05-17 | 2018-05-17 | A kind of ladder volute structure and centrifugal blower and blower device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810486698.0A CN108443226A (en) | 2018-05-17 | 2018-05-17 | A kind of ladder volute structure and centrifugal blower and blower device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108443226A true CN108443226A (en) | 2018-08-24 |
Family
ID=63204137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810486698.0A Withdrawn CN108443226A (en) | 2018-05-17 | 2018-05-17 | A kind of ladder volute structure and centrifugal blower and blower device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108443226A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108931043A (en) * | 2018-10-24 | 2018-12-04 | 奥克斯空调股份有限公司 | air channel structure and air conditioner |
| CN108954755A (en) * | 2018-10-24 | 2018-12-07 | 奥克斯空调股份有限公司 | air channel structure and air conditioner |
| CN108954754A (en) * | 2018-10-24 | 2018-12-07 | 奥克斯空调股份有限公司 | air channel structure and air conditioner |
| CN109058170A (en) * | 2018-10-24 | 2018-12-21 | 奥克斯空调股份有限公司 | Blower and air conditioner |
| CN109059233A (en) * | 2018-10-24 | 2018-12-21 | 奥克斯空调股份有限公司 | air channel structure and air conditioner |
| CN110219828A (en) * | 2019-05-21 | 2019-09-10 | 海信（广东）空调有限公司 | A kind of spiral case of centrifugal blower, centrifugal blower and electric appliance |
| CN111997935A (en) * | 2020-08-27 | 2020-11-27 | 华电章丘发电有限公司 | Noise reduction volute tongue structure and centrifugal fan |
| CN113137401A (en) * | 2020-01-19 | 2021-07-20 | 广东美的环境电器制造有限公司 | Centrifugal fan and air supply device |
| WO2023010958A1 (en) * | 2021-08-04 | 2023-02-09 | 珠海格力节能环保制冷技术研究中心有限公司 | Centrifugal fan blade, fan and air conditioning system |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0714192U (en) * | 1993-08-20 | 1995-03-10 | 株式会社ヤスヰ | Centrifugal blower |
| JP2007321562A (en) * | 2006-05-30 | 2007-12-13 | Matsushita Electric Ind Co Ltd | Centrifugal fan device and electronic equipment having this centrifugal fan device |
| JP2009270778A (en) * | 2008-05-08 | 2009-11-19 | Hitachi Appliances Inc | Air conditioner |
| CN101668954A (en) * | 2007-05-11 | 2010-03-10 | 三菱重工业株式会社 | Centrifugal blower |
| CN103486078A (en) * | 2013-10-23 | 2014-01-01 | 株洲联诚集团有限责任公司 | Bidirectional diffusion centrifugal fan |
| CN104515281A (en) * | 2013-10-08 | 2015-04-15 | 珠海格力电器股份有限公司 | Double-suction type ventilation device and air conditioner |
| JP2017133427A (en) * | 2016-01-28 | 2017-08-03 | サンデン・オートモーティブクライメイトシステム株式会社 | Centrifugal blower |
| CN107850084A (en) * | 2015-08-06 | 2018-03-27 | 三菱电机株式会社 | Centrifugal blower, conditioner and refrigerating circulatory device |
| WO2018054027A1 (en) * | 2016-09-22 | 2018-03-29 | 中山大洋电机股份有限公司 | Coil draught fan structure |
| CN208185066U (en) * | 2018-05-17 | 2018-12-04 | 珠海格力电器股份有限公司 | A kind of ladder volute structure and centrifugal blower and blower device |
-
2018
- 2018-05-17 CN CN201810486698.0A patent/CN108443226A/en not_active Withdrawn
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0714192U (en) * | 1993-08-20 | 1995-03-10 | 株式会社ヤスヰ | Centrifugal blower |
| JP2007321562A (en) * | 2006-05-30 | 2007-12-13 | Matsushita Electric Ind Co Ltd | Centrifugal fan device and electronic equipment having this centrifugal fan device |
| CN101668954A (en) * | 2007-05-11 | 2010-03-10 | 三菱重工业株式会社 | Centrifugal blower |
| JP2009270778A (en) * | 2008-05-08 | 2009-11-19 | Hitachi Appliances Inc | Air conditioner |
| CN104515281A (en) * | 2013-10-08 | 2015-04-15 | 珠海格力电器股份有限公司 | Double-suction type ventilation device and air conditioner |
| CN103486078A (en) * | 2013-10-23 | 2014-01-01 | 株洲联诚集团有限责任公司 | Bidirectional diffusion centrifugal fan |
| CN107850084A (en) * | 2015-08-06 | 2018-03-27 | 三菱电机株式会社 | Centrifugal blower, conditioner and refrigerating circulatory device |
| JP2017133427A (en) * | 2016-01-28 | 2017-08-03 | サンデン・オートモーティブクライメイトシステム株式会社 | Centrifugal blower |
| WO2018054027A1 (en) * | 2016-09-22 | 2018-03-29 | 中山大洋电机股份有限公司 | Coil draught fan structure |
| CN208185066U (en) * | 2018-05-17 | 2018-12-04 | 珠海格力电器股份有限公司 | A kind of ladder volute structure and centrifugal blower and blower device |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108954755B (en) * | 2018-10-24 | 2023-09-15 | 奥克斯空调股份有限公司 | Air duct structure and air conditioner |
| CN108954755A (en) * | 2018-10-24 | 2018-12-07 | 奥克斯空调股份有限公司 | air channel structure and air conditioner |
| CN108954754A (en) * | 2018-10-24 | 2018-12-07 | 奥克斯空调股份有限公司 | air channel structure and air conditioner |
| CN109058170A (en) * | 2018-10-24 | 2018-12-21 | 奥克斯空调股份有限公司 | Blower and air conditioner |
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Application publication date: 20180824 |