CN109854537A - A kind of centrifugal blower of range hood - Google Patents
A kind of centrifugal blower of range hood Download PDFInfo
- Publication number
- CN109854537A CN109854537A CN201711239328.9A CN201711239328A CN109854537A CN 109854537 A CN109854537 A CN 109854537A CN 201711239328 A CN201711239328 A CN 201711239328A CN 109854537 A CN109854537 A CN 109854537A
- Authority
- CN
- China
- Prior art keywords
- dowel
- wheel disc
- shock
- range hood
- centrifugal blower
- 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.)
- Granted
Links
- 210000003205 muscle Anatomy 0.000 claims abstract description 29
- 230000017525 heat dissipation Effects 0.000 claims abstract description 21
- 230000000694 effects Effects 0.000 abstract description 20
- 238000013016 damping Methods 0.000 abstract description 14
- 230000035939 shock Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000003517 fume Substances 0.000 description 3
- 230000007480 spreading Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention relates to a kind of centrifugal blowers of range hood, including impeller and motor, the central location of the mid-game of impeller is provided with the wheel disc for installing motor, wheel disc center be provided with axially through, the first connecting hole that power supply machine output shaft passes through, it further include drive socket and shock-absorbing sleeve, it is lining in shock-absorbing sleeve inner wall in drive socket and is fixed on motor output shaft, shock-absorbing sleeve is folded between drive socket and the inner wall of the first connecting hole；Radiating subassembly is provided on the periphery wall of wheel disc, radiating subassembly includes heat sink and thermally conductive muscle, heat sink is the arc panel to match with the periphery wall of wheel disc, and thermally conductive muscle is supported between the periphery wall of wheel disc and the internal perisporium of heat sink to form the heat dissipation cavity that supplied gas passes through.A large amount of cold airs are poured into heat dissipation cavity during rotation by wheel disc, and the heat for collecting in sheave surface can be contacted sufficiently with the cold air in heat dissipation cavity and pass through thermally conductive muscle and heat sink disperses, it is ensured that shock-damping structure can permanently effective use, play noise-reducing effect.
Description
Technical field
The present invention relates to range hood field more particularly to a kind of centrifugal blowers of range hood.
Background technique
Currently, range hood has become one of essential cooking apparatus of average family, when range hood works, all
By fan operation come fume exhaust, the vibration of blower fan system and noise be mainly derived from impeller generated in rotation it is pneumatic
The brings mechanical vibration noises such as noise and air-flow are unstable, dynamic balance of impeller is bad.When in order to reduce blower fan system work
The noise of generation, in existing cooking-fume exhauster blower system, since impeller and impeller central disc are rigid connection, impeller central disc and electricity
Arbor is rigid connection, and entire blower fan system often all realizes damping effect by the resilient cushion between motor and shell.
Authorization Notice No. is a kind of Chinese utility model patent " cooking-fume exhauster blower shock-damping structure " of CN204126974U
(application number: CN201420542422.7) discloses a kind of structure comprising Blower Housing, motor, impeller and impeller central disc, electricity
Machine is fixed on Blower Housing, and impeller is mutually fixed with impeller central disc, is further included having bracing ring and shock absorbing ring, is lining in and subtracts in bracing ring
Shake circle inner wall is simultaneously fixed on motor output shaft, and shock absorbing ring is by clamping between bracing ring and mid-game inner ring.The oil suction of the structure
Smoke machine fan shock-absorbing structure is by setting shock absorbing ring and the interior bracing ring for being lining in shock absorbing ring inner wall, and shock absorbing ring is being supported by clamping
Circle impeller central disc between so that between impeller and motor can by shock absorbing ring realize damping effect, thus greatly reduce by
The dynamic steady bad bring of, impeller unstable in air-flow is pneumatic and mechanical noise, and reasonably selects the thickness of shock absorbing ring, can be with
Adjust damping effect.However, the root of motor output shaft is different from heat caused by end during due to fan operation,
The heat of motor output shaft root is significantly greater than the heat of end generation, this results in the shock absorbing ring close to motor output shaft root
Part is easy temperature distortion, damping effect is reduced or losed, to be difficult to play ideal noise-reducing effect.
Therefore, it for the connection structure between current motor and Blower Housing, is improved up for further.
Summary of the invention
It can make on motor output shaft the technical problem to be solved by the invention for the present situation of prior art is to provide a kind of
Heat disperse in time so that it is guaranteed that shock-damping structure can permanently effective use, and then play noise-reducing effect range hood from
Heart blower.
The technical scheme of the invention to solve the technical problem is: a kind of centrifugal blower of range hood, including
Impeller and motor are provided with the wheel disc for installing motor in the central location of the mid-game of the impeller, and the wheel disc is at center
Be provided with axially through, the first connecting hole that power supply machine output shaft passes through, further include drive socket and shock-absorbing sleeve, the drive sleeve
It is lining in shock-absorbing sleeve inner wall in cylinder and is fixed on motor output shaft, the shock-absorbing sleeve is folded in drive socket and the first connecting hole
Between inner wall；It is characterized by: the radiating subassembly of the circumferentially spaced arrangement of at least two groups is provided on the periphery wall of the wheel disc,
The radiating subassembly includes heat sink and thermally conductive muscle, and the heat sink is configured to the arc panel to match with the periphery wall of wheel disc, institute
Thermally conductive muscle is stated to be supported between the periphery wall of wheel disc and the internal perisporium of heat sink to form the heat dissipation cavity that supplied gas passes through.
In the above scheme, the wheel disc includes ontology in the form of annular discs and the axle sleeve that extends back from the middle part of ontology, institute
Radiating subassembly is stated on the periphery wall of axle sleeve, the thermally conductive muscle is tilted along axle sleeve circumferentially and from ontology to sleeve end
Arrangement.Preferably, the thermally conductive muscle is at least two and parallel, spaced-apart is arranged.Width of the heat sink in axle sleeve axial direction
For H, the distance close to end to the heat dissipation front edge of board of the thermally conductive muscle of wheel disc ontology arrangement is greater than 0.5H.Using above-mentioned knot
Structure, the position for the air fluidized bed end passed through in heat dissipation cavity can guarantee more cold skies before the middle position of heat sink
Gas enters in heat dissipation cavity, and the heat sink for making wind-guiding muscle and being fixed on wind-guiding muscle plays good heat spreading function.
Preferably, multiple spaced apart heat release holes are offered on the heat sink, and the axial line of the heat release hole passes through
The center arrangement of the wheel disc ontology.Heat release hole can play the airflow function that disturbance is passed through, and increase contact of the heat sink with air-flow
Area and the effect for forming multiple turbulent flows are played preferably heat dissipation and are made to promote the heat exchange of heat sink and cold air
With.
As an improvement, the both ends of the thermally conductive muscle extend to outside heat dissipation cavity respectively is formed as wind deflector, opened on the wind deflector
There are multiple air-guiding holes axially arranged along wheel disc.Preferably, the upper edge of the wind deflector is from the lateral wall of heat sink to wheel disc
Periphery wall smooth transition, and wind deflector is gradually reduced in the width of wheel disc radially from heat sink outward.Above structure be directed to from
The characteristic of heart blower is conducive to bulk gas importing heat dissipation cavity by wind deflector, and the setting of air-guiding hole can make different wind-guidings
The wind-guiding effect of plate is uniform, plays better heat dissipation effect.
Improve again, be provided on the periphery wall of the drive socket at least two extend in the shape of a spiral from front to back first
Dowel, it is corresponding, it is provided on the internal perisporium of the shock-absorbing sleeve and sets the first link slot therein for the first dowel, described
At least two the second dowels extended in the shape of a spiral from front to back are provided on the internal perisporium of one connecting hole, it is corresponding, it is described
It is provided on the periphery wall of shock-absorbing sleeve and sets the second link slot therein for the second dowel.Such structure not only makes drive sleeve
Cylinder, shock-absorbing sleeve connect between wheel disc compact, secured, effectively avoid being subjected to displacement in the circumferential between motor output shaft and mid-game,
And extend the first dowel in the shape of a spiral, the second dowel also helps the transmitting of power, thus balance motor output shaft root
With the vibration dynamics of end, keep blower rotation more steady, and then obtains excellent damping and noise-reducing effect；It meanwhile being in spiral shell
The first dowel, the second dowel that rotation shape extends also help carry out heat transfer, and the heat that motor output shaft is generated is fast
Speed is transferred to sheave surface, and is quickly dispersed using radiating subassembly.
Preferably, first dowel is identical as the hand of spiral of the second dowel.
As an improvement, the sectional area of first dowel and/or the second dowel becomes larger from front to back.The structure
The stress that can avoid on shock-absorbing sleeve is concentrated, and better damping effect is obtained；Meanwhile the heat that motor output shaft root generates can be big
Be conducive to quickly pass the heat of motor output shaft root using the structure in the heat that end generates.
Preferably, the cross sectional shape of first dowel and/or the second dowel is in and faces out to arch upward from respective wall
It is semicircle.Shock-absorbing sleeve of the invention is preferably made of rubber material, using the dowel structure of above-mentioned semi-circular cross-section, can be had
Effect guarantees the cohesive force of rubber material and metal, further strengthens the binding force between shock-absorbing sleeve and drive socket, wheel disc, avoids
Vibration reduces noise.
Improve again, the shock-absorbing sleeve with a thickness of W, the section radius of first dowel and/or the second dowel is
1/3W~1/2W.Preferably, the front end of first dowel and/or the second dowel be 1/3W, first dowel and/
Or second dowel rear end be 1/2W.Preferably, the center convolution line lift angle of first dowel and/or the second dowel
It is 45 °~60 °.Preferably, the first dowel is identical as the center convolution line lift angle of the second dowel.Using the above structure, may be used
Obtain best damping effect.
It is further improved, the thickness of the shock-absorbing sleeve is gradually reduced from front to back, and the thickness ratio of the shock-absorbing sleeve front end
Big 0.12~the 0.31mm of the thickness of its rear end.The structure can further improve damping effect.
Compared with the prior art, the advantages of the present invention are as follows: the present invention is exported motor using drive socket and shock-absorbing sleeve
Axis is attached with wheel disc, also, radiating subassembly is provided on the periphery wall of wheel disc, in use process, motor output shaft meeting
Very big heat is generated, which can successively pass to transmitting sleeve, shock-absorbing sleeve and wheel disc, and wheel disc during rotation will
A large amount of cold airs pour into heat dissipation cavity, and the heat for collecting in sheave surface can be contacted sufficiently with the cold air in heat dissipation cavity, together
When dispersed by thermally conductive muscle and heat sink, so that it is guaranteed that shock-damping structure can permanently effective use, and then play noise-reducing effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention；
Fig. 2 is the cross-sectional view of Fig. 1；
Fig. 3 is the exploded view of Fig. 1；
Fig. 4 is the structural schematic diagram of wheel disc in the embodiment of the present invention；
Fig. 5 is the enlarged structure schematic diagram of part A in Fig. 4；
Fig. 6 is the structural schematic diagram of drive socket in the embodiment of the present invention；
Fig. 7 is the structural schematic diagram of shock-absorbing sleeve in the embodiment of the present invention；
Fig. 8 is the enlarged structure schematic diagram of part B in Fig. 2.
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings.
As shown in Fig. 1~8, the centrifugal blower of the range hood of the present embodiment includes impeller 1, motor, drive socket 5 and subtracts
Shake set 7 is provided with the wheel disc 3 for installing motor in the central location of the mid-game 2 of impeller 1, and wheel disc 3 is provided with axial pass through at center
The first logical, power supply machine output shaft passes through connecting hole 31.It is lining in 7 inner wall of shock-absorbing sleeve in drive socket 5 and to be fixed on motor defeated
On shaft, shock-absorbing sleeve 7 is clamped between drive socket 5 and the inner wall of the first connecting hole 31.
In the present embodiment, the radiating subassembly 6 of four groups of circumferentially spaced arrangements is provided on the periphery wall of wheel disc 3, this is dissipated
Hot component 6 includes heat sink 61 and thermally conductive muscle 62, and heat sink 61 is configured to the arc panel to match with the periphery wall of wheel disc 3, leads
Hot muscle 62 is supported between the periphery wall of wheel disc 3 and the internal perisporium of heat sink 61 to form the heat dissipation cavity 60 that supplied gas passes through.
The wheel disc 3 of the present embodiment is set including ontology 32 in the form of annular discs and the axle sleeve 33 to extend back from the middle part of ontology 32, radiating subassembly 6
In on the periphery wall of axle sleeve 33, thermally conductive muscle 62 is in tilted layout along axle sleeve 33 circumferentially and from ontology 32 to 33 end of axle sleeve.
Thermally conductive muscle 62 is two and parallel, spaced-apart is arranged.Width of the heat sink 61 in 33 axial direction of axle sleeve is H, close to wheel disc ontology 32
The distance of the end of the thermally conductive muscle 62 of arrangement to 61 front end of heat sink is greater than 0.5H.Using the above structure, pass through in heat dissipation cavity 60
Air fluidized bed end position before the middle position of heat sink 61, can guarantee that more cold airs enter heat dissipation cavity
In 60, the heat sink 61 for making wind-guiding muscle 62 and being fixed on wind-guiding muscle 62 plays good heat spreading function.It is opened up on heat sink 61
There are multiple spaced apart heat release holes 611, and the axial line of the heat release hole 611 passes through the center arrangement of wheel disc ontology 32, that is, dissipates
Tangential direction on the vertical heat sink 61 of the axial line of hot hole 611 where respective planes.Heat release hole 611 can play what disturbance was passed through
Airflow function increases the contact area of heat sink 61 and air-flow and forms the effect of multiple turbulent flows, to promote heat sink 61
It is exchanged with the heat of cold air, plays better heat spreading function.
62 both ends of thermally conductive muscle of the present embodiment extend to outside heat dissipation cavity 60 be formed as wind deflector 63 respectively, on the wind deflector 63
It is provided with multiple air-guiding holes 631 axially arranged along wheel disc 3.The upper edge of wind deflector 63 is from the lateral wall of heat sink 61 to wheel disc 3
Periphery wall smooth transition, and wind deflector 63 is gradually reduced in the width of wheel disc 3 radially from heat sink 61 outward.Above structure needle
To the characteristic of centrifugal blower, be conducive to bulk gas importing heat dissipation cavity 60 by wind deflector 62, and the setting of air-guiding hole 631 can
It acts on the wind-guiding of different wind deflectors 63 uniform, plays better heat dissipation effect.
In the present embodiment, 6 the first companies extended in the shape of a spiral from front to back are provided on the periphery wall of drive socket 5
Muscle 51 is connect, it is corresponding, it is provided on the internal perisporium of shock-absorbing sleeve 7 and sets the first link slot 71 therein for the first dowel 51, first
6 the second dowels 311 extended in the shape of a spiral from front to back, corresponding, shock-absorbing sleeve 7 are provided on the internal perisporium of connecting hole 31
Periphery wall on be provided with and set the second link slot 72 therein for the second dowel 311, and the first dowel 51 is connect with second
The hand of spiral of muscle 72 is identical.In order to keep connection structure compact, drive socket 5 includes cylinder 52 and is set to 52 rear end of cylinder simultaneously
Along outwardly extending first gasket 53 in edge, the first dowel 51 is set on the periphery wall of cylinder 52.Shock-absorbing sleeve 7 includes body 73
And set on 73 rear end of body and along outwardly extending second gasket 74 in edge, the first link slot 71 is opened in the inner circumferential of body 73
On wall, the second link slot 72 is opened on the periphery wall of body 73, is assembled under completion status, and the front end face of the second gasket 74 compresses
On the rear end face of wheel disc 3, the front end face of the first gasket 53 is pressed on the rear end face of the second gasket 74.First dowel 51,
The sectional area of second dowel 311 becomes larger from front to back.The structure can avoid the stress on shock-absorbing sleeve 7 and concentrate, and obtain
Better damping effect.First dowel 51, the second dowel 311 cross sectional shape be in half for facing out and arching upward from respective wall
It is round.The shock-absorbing sleeve 7 of the present embodiment is preferably made of rubber material, can using the dowel structure of above-mentioned semi-circular cross-section
The cohesive force of rubber material and metal is effectively ensured, further strengthens the combination between shock-absorbing sleeve 7 and drive socket 5, wheel disc 3
Power avoids vibration, reduces noise.In the present embodiment shock-absorbing sleeve 7 with a thickness of W, the first dowel 51, the second dowel 311
Section radius is 1/3W~1/2W, in the present embodiment, the front elevational sectional radius of the first dowel 51, the second dowel 311
Be 1/3W, the first dowel 51, the second dowel 311 rear end section radius be 1/2W.First dowel 51, second connects
The center convolution line lift angle for connecing muscle 311 is identical and be 45 °~60 °.The thickness of shock-absorbing sleeve 7 is gradually reduced from front to back, and is subtracted
The thickness of 7 front ends of shake set is 0.12~0.31mm bigger than the thickness of its rear end, which can further improve damping effect.
Claims (14)
1. a kind of centrifugal blower of range hood, including impeller (1) and motor, in the central location of the mid-game (2) of the impeller
Be provided with the wheel disc (3) for installing motor, the wheel disc (3) center be provided with axially through, power supply machine output shaft passes through
The first connecting hole (31), further include drive socket (5) and shock-absorbing sleeve (7), be lining in shock-absorbing sleeve (7) in the drive socket (5)
Inner wall is simultaneously fixed on motor output shaft, and the shock-absorbing sleeve (7) is folded in the inner wall of drive socket (5) Yu the first connecting hole (31)
Between；It is characterized by: being provided with the radiating subassembly of the circumferentially spaced arrangement of at least two groups on the periphery wall of the wheel disc (3)
(6), which includes heat sink (61) and thermally conductive muscle (62), and the heat sink (61) is the periphery wall with wheel disc (3)
The arc panel to match, the thermally conductive muscle (62) be supported between the periphery wall of wheel disc (3) and the internal perisporium of heat sink (61) from
And form the heat dissipation cavity (60) that supplied gas passes through.
2. the centrifugal blower of range hood according to claim 1, it is characterised in that: the wheel disc (3) includes in disk
The ontology (32) of shape and the axle sleeve (33) to extend back from the middle part of ontology (32), the radiating subassembly (6) are set to axle sleeve (33)
On periphery wall, the thermally conductive muscle (62) is in tilted layout along axle sleeve (33) circumferentially and from ontology to axle sleeve (33) end.
3. the centrifugal blower of range hood according to claim 2, it is characterised in that: the thermally conductive muscle (62) is at least two
Item and parallel, spaced-apart arrangement.
4. the centrifugal blower of range hood according to claim 3, it is characterised in that: the heat sink (61) is in axle sleeve
(33) width in axial direction is H, the end to heat sink (61) for the thermally conductive muscle (62) arranged close to the ontology (32) of the wheel disc
The distance of front end is greater than 0.5H.
5. the centrifugal blower of range hood described in any claim according to claim 1~4, it is characterised in that: described
Multiple spaced apart heat release holes (611) are offered on heat sink (61), and the axial line of the heat release hole (611) passes through the wheel
The center arrangement of the ontology (32) of disk.
6. the centrifugal blower of range hood described in any claim according to claim 1~4, it is characterised in that: described
The both ends of thermally conductive muscle (62) extend outside to heat dissipation cavity (60) be formed as wind deflector (63) respectively, are provided on the wind deflector (63) multiple
The air-guiding hole (631) axially arranged along wheel disc (3).
7. the centrifugal blower of range hood according to claim 6, it is characterised in that: the upper edge of the wind deflector (63)
It is seamlessly transitted from the lateral wall of heat sink (61) to wheel disc (3) periphery wall, and width of the wind deflector (63) in wheel disc (3) radially
It is gradually reduced outward from heat sink (61).
8. the centrifugal blower of range hood described in any claim according to claim 1~4, it is characterised in that: described
At least two the first dowels (51) extended in the shape of a spiral from front to back are provided on the periphery wall of drive socket (5), it is corresponding
, it is provided on the internal perisporium of the shock-absorbing sleeve (7) and sets the first link slot (71) therein for the first dowel (51), described
At least two the second dowels (311) extended in the shape of a spiral from front to back are provided on the internal perisporium of one connecting hole (31), it is right
It answers, is provided on the periphery wall of the shock-absorbing sleeve (7) and sets the second link slot (72) therein for the second dowel (311).
9. the centrifugal blower of range hood according to claim 8, it is characterised in that: first dowel (51) and/
Or second the sectional area of dowel (311) become larger from front to back.
10. the centrifugal blower of range hood according to claim 9, it is characterised in that: first dowel (51) and/
Or second dowel (311) cross sectional shape in facing out the semicircle to arch upward from respective wall.
11. the centrifugal blower of range hood according to claim 10, it is characterised in that: the thickness of the shock-absorbing sleeve (7)
For W, the section radius of first dowel (51) and/or the second dowel (311) is 1/3W~1/2W.
12. the centrifugal blower of range hood according to claim 11, it is characterised in that: first dowel (51)
And/or second the front end of dowel (311) be 1/3W, the rear end of first dowel (51) and/or the second dowel (311)
For 1/2W.
13. the centrifugal blower of range hood according to claim 8, it is characterised in that: first dowel (51) and/
Or second dowel (311) center convolution line lift angle be 45 °~60 °.
14. the centrifugal blower of range hood according to claim 8, it is characterised in that: the thickness of the shock-absorbing sleeve (7) is certainly
It is gradually reduced after forward direction, and the thickness of the shock-absorbing sleeve (7) front end is 0.12~0.31mm bigger than the thickness of its rear end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711239328.9A CN109854537B (en) | 2017-11-30 | 2017-11-30 | Centrifugal fan of range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711239328.9A CN109854537B (en) | 2017-11-30 | 2017-11-30 | Centrifugal fan of range hood |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109854537A true CN109854537A (en) | 2019-06-07 |
| CN109854537B CN109854537B (en) | 2024-01-12 |
Family
ID=66888262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711239328.9A Active CN109854537B (en) | 2017-11-30 | 2017-11-30 | Centrifugal fan of range hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109854537B (en) |
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|---|---|---|---|---|
| CN2756877Y (en) * | 2004-12-24 | 2006-02-08 | 宁波方太厨具有限公司 | Centrafugal fan impeller for fume exhaust fan |
| CN201582221U (en) * | 2009-12-24 | 2010-09-15 | 上海通用风机股份有限公司 | Fan wheel disk structure with radiating opening |
| CN203130600U (en) * | 2013-03-20 | 2013-08-14 | 广东美的暖通设备有限公司 | Impeller of centrifugal fan and centrifugal fan |
| CN103527512A (en) * | 2013-09-16 | 2014-01-22 | 宁波方太厨具有限公司 | Impeller structure of centrifugal fan |
| CN203476794U (en) * | 2013-09-16 | 2014-03-12 | 宁波方太厨具有限公司 | Impeller structure of centrifugal fan |
| CN205503571U (en) * | 2016-04-19 | 2016-08-24 | 青岛海信日立空调***有限公司 | Centrifugal fan vibration absorbing shaft cover and centrifugal fan |
| CN106337824A (en) * | 2016-09-28 | 2017-01-18 | 浙江亿利达风机股份有限公司 | Novel volute centrifugal fan provided with permanent-magnet brushless motor system |
| WO2017133371A1 (en) * | 2016-02-01 | 2017-08-10 | 宁波方太厨具有限公司 | Ceiling-mounted exhaust hood |
| CN207470495U (en) * | 2017-11-30 | 2018-06-08 | 宁波方太厨具有限公司 | A kind of centrifugal blower of range hood |
-
2017
- 2017-11-30 CN CN201711239328.9A patent/CN109854537B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2756877Y (en) * | 2004-12-24 | 2006-02-08 | 宁波方太厨具有限公司 | Centrafugal fan impeller for fume exhaust fan |
| CN201582221U (en) * | 2009-12-24 | 2010-09-15 | 上海通用风机股份有限公司 | Fan wheel disk structure with radiating opening |
| CN203130600U (en) * | 2013-03-20 | 2013-08-14 | 广东美的暖通设备有限公司 | Impeller of centrifugal fan and centrifugal fan |
| CN103527512A (en) * | 2013-09-16 | 2014-01-22 | 宁波方太厨具有限公司 | Impeller structure of centrifugal fan |
| CN203476794U (en) * | 2013-09-16 | 2014-03-12 | 宁波方太厨具有限公司 | Impeller structure of centrifugal fan |
| WO2017133371A1 (en) * | 2016-02-01 | 2017-08-10 | 宁波方太厨具有限公司 | Ceiling-mounted exhaust hood |
| CN205503571U (en) * | 2016-04-19 | 2016-08-24 | 青岛海信日立空调***有限公司 | Centrifugal fan vibration absorbing shaft cover and centrifugal fan |
| CN106337824A (en) * | 2016-09-28 | 2017-01-18 | 浙江亿利达风机股份有限公司 | Novel volute centrifugal fan provided with permanent-magnet brushless motor system |
| CN207470495U (en) * | 2017-11-30 | 2018-06-08 | 宁波方太厨具有限公司 | A kind of centrifugal blower of range hood |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109854537B (en) | 2024-01-12 |
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