CN108429398A - External rotor electric machine and range hood - Google Patents
External rotor electric machine and range hood Download PDFInfo
- Publication number
- CN108429398A CN108429398A CN201810493093.4A CN201810493093A CN108429398A CN 108429398 A CN108429398 A CN 108429398A CN 201810493093 A CN201810493093 A CN 201810493093A CN 108429398 A CN108429398 A CN 108429398A
- Authority
- CN
- China
- Prior art keywords
- rotor
- stator
- electric machine
- impeller
- external rotor
- 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
- 238000009434 installation Methods 0.000 claims abstract description 37
- 239000000779 smoke Substances 0.000 claims description 19
- 238000004804 winding Methods 0.000 claims description 15
- 238000005096 rolling process Methods 0.000 claims description 11
- 239000003517 fume Substances 0.000 claims description 8
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 235000019504 cigarettes Nutrition 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000030279 gene silencing Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
-
- 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
Abstract
The present invention discloses a kind of external rotor electric machine and range hood, wherein the external rotor electric machine includes：Stator；Rotor, the rotor are set around the outside of the stator；The inside of impeller, the impeller offers installation cavity, and the rotor is fixedly arranged in the installation cavity, so that the impeller is rotated with the rotation of the rotor.Technical solution of the present invention ensures the thickness that kitchen ventilator is thinned under the premise of air quantity.
Description
Technical field
The present invention relates to range hood technical field, more particularly to a kind of external rotor electric machine and range hood.
Background technology
As the improvement of people's living standards, requirement of the people to kitchen ventilator is also higher and higher, for example, it is desirable to not
In the case of reducing air quantity, the smoke machine of thin size is obtained.And existing smoke machine, motor is usually using motor with cup rotor, split-pole electricity
The torque of machine is relatively low, size is big, cannot be satisfied demand of the people to smoke machine size and air quantity.
Invention content
The main object of the present invention is to provide a kind of external rotor electric machine, it is intended to ensure that kitchen ventilator is thinned under the premise of air quantity
Thickness.
To achieve the above object, external rotor electric machine proposed by the present invention, including：
Stator；
Rotor, the rotor are set around the outside of the stator；
The inside of impeller, the impeller offers installation cavity, and the rotor is fixedly arranged in the installation cavity, so that the leaf
Wheel is rotated with the rotation of the rotor.
Preferably, the installation cavity is opened up along the pivot center of the impeller.
Preferably, the rotor and the installation cavity tight fit, the inside of the lateral wall of the rotor and the installation cavity
Wall is bonded.
Preferably, the open end of the installation cavity is in from the outside to the core with the guide surface being packed into for rotor, the guide surface
Tapered setting.
Preferably, installation cavity one end opposite to the open end opens up via, and the top of the rotor passes through the mistake
The inside of the impeller is stretched into hole.
Preferably, the stator and rotor are contained in the inside of the impeller.
Preferably, rolling bearing is provided at the top of the stator, the rotation axis of the rotor is plugged in the rotation axis
In holding；
Alternatively, being provided with rolling bearing at the top of the rotor, the shaft of the stator is plugged in the rolling bearing.
Preferably, the stator includes stator base and winding cage, and the winding cage and the stator base detachably connect
It connects.
Preferably, the external rotor electric machine further includes motor base, the stator base back to the side of the rotor with
The motor base is fixedly connected.
Preferably, side of the motor base towards the stator base is provided with limited post；The stator base packet
The fixes sleeve for including fixed seat and being connect with fixed seat；
The fixed seat is connect with the motor base, and the fixes sleeve is sheathed on the limited post.
Present invention further propose that a kind of range hood, including：
Exhaust fume collecting hood, the exhaust fume collecting hood have smoke inlet and outlet flue；
There is air inlet and air outlet, the air inlet to be connected to the outlet flue for air box, the air box；
External rotor electric machine, external rotor electric machine are installed in the air box；
Wherein, the external rotor electric machine includes：
Stator；
Rotor, the rotor are set around the outside of the stator；
The inside of impeller, the impeller offers installation cavity, and the rotor is fixedly arranged in the installation cavity, so that the leaf
Wheel is rotated with the rotation of the rotor.
In technical solution of the present invention, rotor is set around the outside of stator, and external rotor electric machine is not provided with motor casing and defeated
Go out shaft, rotor is directly fixedly arranged in wind wheel installation cavity so that impeller is rotated with the rotation of rotor；Compared to existing interior turn
Sub-motor is connect by shaft with impeller, and the impeller in the application is directly sleeved on stator so that stator, rotor and impeller
Total length after assembly substantially reduces (along impeller axis direction), can when manufacturing the air box of smoke machine using external rotor electric machine
Significantly to reduce the thickness of air box, in the case where ensureing that smoke machine air quantity is enough, reduce the size of smoke machine；Outer rotor
Motor is mounted on the top of air box, by the size for reducing external rotor electric machine so that impeller is more far from user, to subtract
Influence of the generated noise to user when small wheel rotation.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the structural schematic diagram of one embodiment of external rotor electric machine of the present invention；
Fig. 2 is the structural schematic diagram of another angles of Fig. 1；
Fig. 3 is the structural schematic diagram after Fig. 1 assembly；
Fig. 4 is the structural schematic diagram of one embodiment of range hood of the present invention；
Fig. 5 is the internal structure schematic diagram of Fig. 4；
Fig. 6 is the structural schematic diagram of another embodiment of range hood of the present invention.
Drawing reference numeral explanation：
| Label | Title | Label | Title |
| 100 | External rotor electric machine | 110 | Impeller |
| 111 | Via | 112 | Open end |
| 113 | Guide surface | 120 | Rotor |
| 130 | Stator | 131 | Winding cage |
| 132 | Fixes sleeve | 133 | Stator base |
| 140 | Motor base | 141 | Limited post |
| 200 | Air box | 300 | Exhaust fume collecting hood |
| 210 | Air inlet | 220 | Air outlet |
| 310 | Smoke inlet | 320 | Outlet flue |
| 400 | Muffler | 410 | Air inlet |
| 420 | Gas outlet | 430 | Silencers channel |
| 500 | Connect smoke pipe |
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art obtained without creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute is only used in the embodiment of the present invention
In explaining relative position relation, motion conditions etc. under a certain particular pose (as shown in the picture) between each component, if should
When particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In addition, the description for being related to " first ", " second " etc. in the present invention is used for description purposes only, and should not be understood as referring to
Show or imply its relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " are defined as a result,
Two " feature can explicitly or implicitly include at least one of the features.In addition, the technical solution between each embodiment can
To be combined with each other, but must can be implemented as basis with those of ordinary skill in the art, when the combination of technical solution occurs
Conflicting or cannot achieve when, will be understood that the combination of this technical solution is not present, also not the present invention claims protection model
Within enclosing.
The present invention mainly proposes a kind of external rotor electric machine 100, is mainly used in range hood, to reduce range hood
Size.The range hood refers to the equipment for aspirating oil smoke, such as the domestic cooking fume remover in kitchen.Range hood usually wraps
Collection cigarette stove and air box 200 is included, air box 200 can be directly connected to collection cigarette stove, in some embodiments, in order to by air box
200, far from user setting (by noise source far from user, reducing influence of the noise to user), can also pass through therebetween connection
Smoke pipe 500 connects.Certainly, in some embodiments, 200 sum aggregate cigarette stove of air box can also be connected to by silencing cavity, muffler
400 have silencers channel 430, the air inlet 210 of the outlet flue 320 and air box 200 of 430 connected set cigarette stove of silencers channel.Separately
It outside, in some embodiments, can be in order to improve the adaptability specific room body structure of different user (adapt to) of range hood
Connection smoke pipe 500 is added between muffler 400 and air box 200, connection smoke pipe 500 is preferred with flexible deformable, telescoping tube.
Below by the concrete structure of main description external rotor electric machine 100.
Referring to figs. 1 to Fig. 6, in embodiments of the present invention, which includes：
Stator 130；
Rotor 120, the rotor 120 are set around the outside of the stator 130；
The inside of impeller 110, the impeller 110 offers installation cavity, and the rotor 120 is fixedly arranged in the installation cavity,
So that the impeller 110 is rotated with the rotation of the rotor 120.
Specifically, in the present embodiment, coil windings are provided on stator 130, the monnolithic case of stator 130 is set in revolving body
It sets, for being in the form of a column setting.The side of rotor 120 towards stator 130 offers rotating drum, and stator 130 is located in rotating drum,
When rotor 120 is rotated relative to stator 130, external rotor electric machine 100 converts electrical energy into mechanical energy, and defeated by rotor 120
Go out.The form of impeller 110 can have very much, such as axis stream, mixed flow, centrifugation, by taking centrifugal impeller 110 as an example.The shape of installation cavity
With the whole form fit of rotor 120, for being in the form of a column setting.After the installation to installation cavity of rotor 120, outside rotor 120
Side wall is directly bonded fixation with the madial wall of installation cavity.Rotor 120 and the fixed form of installation cavity have very much, such as pass through glue
Rotor 120 in the present embodiment, in 120 direct clamping of rotor and installation cavity, i.e., is pressed into and pacifies by viscous, buckle or screw
In behaveing affectedly so that rotor 120 and installation cavity tight fit.
In the present embodiment, rotor 120 is set around the outside of stator 130, and external rotor electric machine 100 be not provided with motor casing and
Rotor 120 is directly fixedly arranged in wind wheel installation cavity by output revolving shaft so that impeller 110 is rotated with the rotation of rotor 120；Phase
It being connect with impeller 110 by shaft than existing inner rotor motor, the impeller 110 in the application is directly sleeved on stator 130,
So that stator 130, the total length after rotor 120 and impeller 110 assemble substantially reduce (along 110 axis direction of impeller), when making
When manufacturing the air box 200 of smoke machine with external rotor electric machine 100, it can significantly reduce the thickness of air box 200, to ensure
In the case that smoke machine air quantity is enough, reduce the size of smoke machine；External rotor electric machine 100 is mounted on the top of air box 200, by subtracting
The size of small external rotor electric machine 100 so that impeller 110 is produced when impeller 110 rotates to reduce more far from user
Influence of the noise to user.
The structure being described below can improve the convenience in the mounting stability and assembling process of external rotor electric machine 100.
The installation cavity is opened up along the pivot center of the impeller 110 so that rotor 120 is located at the center of impeller 110, in impeller 110
During rotation, the power that 120 surrounding of rotor is subject to is identical, so that impeller 110 and rotor 120 in rotation process, are located
In the equilibrium state of power, avoid rotor 120 either 110 unbalance stress of impeller and deform or shake.
In order to improve the convenience of the installation of rotor 120, and the adaptability of raising impeller 110, the opening of the installation cavity
It is in tapered setting from the outside to the core that end 112, which has the guide surface 113 being packed into for rotor 120, the guide surface 113,.Pass through guide surface
113 setting so that rotor 120 can very easily find installation position, and install into installation cavity.When guide surface 113
When can be used for fixed rotor 120, by setting guide surface 113 to gradual change so that installation cavity is adapted to various sizes of
Impeller 110.
In order to further reduce the total length of external rotor electric machine 100, i.e. impeller 110, rotor 120 and stator 130 is pacified
Length after dress, installation cavity one end opposite with open end 112 open up via 111, and the top of the rotor 120 passes through institute
State the inside that via 111 stretches into the impeller 110.By opening up via 111 so that rotor 120 all extend into impeller 110
It is internal.Similarly, after in the setting to rotating drum of stator 130, stator 130 is also entirely located in the inside of impeller 110, at this point, impeller
110, the total length after rotor 120 and stator 130 are installed is the axial length of impeller 110, is reduced to the full extent outer
The total length of rotor electric machine 100.
About the rotation connection of stator 130 and rotor 120, the top of the stator 130 is provided with rolling bearing, described turn
The rotation axis of son 120 is plugged in the rolling bearing；Alternatively, the top of the rotor 120 is provided with rolling bearing, it is described fixed
The shaft of son 130 is plugged in the rolling bearing.
In the present embodiment, stator 130 and rotor 120 are connect by bearing with shaft, wherein bearing can be arranged in stator
On 130 the shaft of rotor 120 (with bearing grafting), it can also be arranged on rotor 120 that (shaft of stator 130 is inserted with bearing
Connect), for being arranged bearing at the top of stator 130.One end of shaft is fixedly connected with rotor 120, and the other end is inserted into
In bearing, to realize the rotation connection of stator 130 and rotor 120.Pass through
In order to further improve the structural stability of external rotor electric machine 100, the stator 130 includes 130 pedestal of stator
133 and winding cage 131, the winding cage 131 and 130 pedestal 133 of the stator be detachably connected.The external rotor electric machine 100
Further include motor base 140,130 pedestal 133 of the stator is solid back to the side of the rotor 120 and the motor base 140
Fixed connection.Side of the motor base 140 towards 130 pedestal 133 of the stator is provided with limited post 141；The stator 130
Pedestal 133 includes fixed seat and the fixes sleeve 132 being connect with fixed seat；The fixed seat is connect with the motor base 140,
The fixes sleeve 132 is sheathed on the limited post 141.
Specifically, in the present embodiment, winding cage 131 is arranged in a ring, and coil windings are provided in winding cage 131.Pass through
Winding cage 131 and 130 pedestal 133 of stator are set as being detachably connected, and one end of winding cage 131 is provided with opening, is made
Coil windings are obtained convenient for the cooperation with winding cage 131.By the way that motor base 140 is arranged so that external rotor electric machine 100 can be convenient
Connect with air box 200.Motor base 140 is detachably connected with 130 pedestal 133 of stator, and dismountable connection type has very
It is more, it such as snaps connection, screw connection, is in clamping connection.In order to improve the company between 130 pedestal 133 of stator and motor base 140
Connect stability and structural compactness.Limited post 141 is inserted into fixes sleeve 132, so that limited post 141 and sleeve tight fit.
Wherein, limited post 141 and fixes sleeve 132 extend along the axis of stator 130, with 130 shaft of stator and 120 shaft of rotor for axis
Line.
In the present embodiment, it is arranged by the tight fit of limited post 141 and fixing sleeve, increases 130 pedestal 133 of stator and electricity
While the connective stability of machine base 140, the concentricity of motor base 140 and stator 130 is also increased so that motor base
140, the installation accuracy of stator 130, rotor 120 and impeller 110 is increased.
The present invention also proposes a kind of range hood, which includes exhaust fume collecting hood 300 and external rotor electric machine 100, this is outer
The concrete structure of rotor electric machine 100 is with reference to above-described embodiment, since this range hood uses the whole of above-mentioned all embodiments
Technical solution, therefore at least all advantageous effects caused by the technical solution with above-described embodiment, no longer go to live in the household of one's in-laws on getting married one by one herein
It states.Wherein, exhaust fume collecting hood 300 has smoke inlet 310 and outlet flue 320；Range hood further includes air box 200, the air box
200 there is air inlet 210 and air outlet 220, the air inlet 210 to be connected to the outlet flue 320；External rotor electric machine 100 is pacified
Loaded in the air box 200.Muffler 400 has the air inlet 410 being connected to silencers channel 430 and gas outlet 420.Smoke
Mouth 320 is connected to air inlet 410, and air inlet 410 is connected to by silencers channel 430 with gas outlet 420,420 air inlet of gas outlet
210 connections.
The foregoing is merely the preferred embodiment of the present invention, are not intended to limit the scope of the invention, every at this
Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly
In the scope of patent protection that other related technical areas are included in the present invention.
Claims (10)
1. a kind of external rotor electric machine, which is characterized in that including：
Stator；
Rotor, the rotor are set around the outside of the stator；
The inside of impeller, the impeller offers installation cavity, and the rotor is fixedly arranged in the installation cavity so that the impeller with
The rotation of the rotor and rotate.
2. external rotor electric machine as described in claim 1, which is characterized in that the installation cavity is opened along the pivot center of the impeller
If.
3. external rotor electric machine as described in claim 1, which is characterized in that the rotor and the installation cavity tight fit, it is described
The lateral wall of rotor is bonded with the madial wall of the installation cavity.
4. external rotor electric machine as described in claim 1, which is characterized in that the open end of the installation cavity has to be packed into for rotor
Guide surface, the guide surface from the outside to the core be in tapered setting.
5. external rotor electric machine as described in claim 1, which is characterized in that described installation cavity one end opposite to the open end opens up
The inside of the impeller is stretched at via, the top of the rotor across the via.
6. external rotor electric machine as claimed in claim 5, which is characterized in that the stator and rotor are contained in the interior of the impeller
Portion.
7. the external rotor electric machine as described in any one of claim 1 to 6, which is characterized in that the top of the stator is arranged
There are rolling bearing, the rotation axis of the rotor to be plugged in the rolling bearing；
Alternatively, being provided with rolling bearing at the top of the rotor, the shaft of the stator is plugged in the rolling bearing.
8. the external rotor electric machine as described in any one of claim 1 to 6, which is characterized in that the stator includes stator bottom
Seat and winding cage, the winding cage and the stator base are detachably connected；
The external rotor electric machine further includes motor base, and the stator base is back to the side of the rotor and the motor base
It is fixedly connected.
9. external rotor electric machine as claimed in claim 8, which is characterized in that the motor base towards the stator base one
Side is provided with limited post；The stator base includes fixed seat and the fixes sleeve that is connect with fixed seat；
The fixed seat is connect with the motor base, and the fixes sleeve is sheathed on the limited post.
10. a kind of range hood, which is characterized in that including：
Exhaust fume collecting hood, the exhaust fume collecting hood have smoke inlet and outlet flue；
There is air inlet and air outlet, the air inlet to be connected to the outlet flue for air box, the air box；
External rotor electric machine as in one of claimed in any of claims 1 to 9, external rotor electric machine are installed in the air box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810493093.4A CN108429398A (en) | 2018-05-18 | 2018-05-18 | External rotor electric machine and range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810493093.4A CN108429398A (en) | 2018-05-18 | 2018-05-18 | External rotor electric machine and range hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108429398A true CN108429398A (en) | 2018-08-21 |
Family
ID=63163697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810493093.4A Pending CN108429398A (en) | 2018-05-18 | 2018-05-18 | External rotor electric machine and range hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108429398A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980114A (en) * | 2018-09-05 | 2018-12-11 | 上海诺地乐通用设备制造有限公司 | A kind of blower dynamic balancing correction unique stator and implementation method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2382982Y (en) * | 1999-02-01 | 2000-06-14 | 台湾樱花股份有限公司 | Structure improved blade motor of fume exhaust fan |
| CN103312104A (en) * | 2013-06-24 | 2013-09-18 | 南京航空航天大学 | Dual-rotor flux-switching permanent-magnet motor |
| CN203707994U (en) * | 2013-12-31 | 2014-07-09 | 深圳市沃尔核材股份有限公司 | Driving wheel set |
| CN204176716U (en) * | 2014-10-22 | 2015-02-25 | 浙江万事兴电器有限公司 | A kind of close-suction range hood with underneath type flue gas removing device |
| CN207230683U (en) * | 2017-09-30 | 2018-04-13 | 宁波方太厨具有限公司 | A kind of range hood |
| CN208112430U (en) * | 2018-05-18 | 2018-11-16 | 广东美的厨房电器制造有限公司 | External rotor electric machine and range hood |
-
2018
- 2018-05-18 CN CN201810493093.4A patent/CN108429398A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2382982Y (en) * | 1999-02-01 | 2000-06-14 | 台湾樱花股份有限公司 | Structure improved blade motor of fume exhaust fan |
| CN103312104A (en) * | 2013-06-24 | 2013-09-18 | 南京航空航天大学 | Dual-rotor flux-switching permanent-magnet motor |
| CN203707994U (en) * | 2013-12-31 | 2014-07-09 | 深圳市沃尔核材股份有限公司 | Driving wheel set |
| CN204176716U (en) * | 2014-10-22 | 2015-02-25 | 浙江万事兴电器有限公司 | A kind of close-suction range hood with underneath type flue gas removing device |
| CN207230683U (en) * | 2017-09-30 | 2018-04-13 | 宁波方太厨具有限公司 | A kind of range hood |
| CN208112430U (en) * | 2018-05-18 | 2018-11-16 | 广东美的厨房电器制造有限公司 | External rotor electric machine and range hood |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980114A (en) * | 2018-09-05 | 2018-12-11 | 上海诺地乐通用设备制造有限公司 | A kind of blower dynamic balancing correction unique stator and implementation method |
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