CN204371724U - A kind of blower fan of range hood - Google Patents
A kind of blower fan of range hood Download PDFInfo
- Publication number
- CN204371724U CN204371724U CN201420869012.3U CN201420869012U CN204371724U CN 204371724 U CN204371724 U CN 204371724U CN 201420869012 U CN201420869012 U CN 201420869012U CN 204371724 U CN204371724 U CN 204371724U
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- range hood
- blower fan
- wind wheel
- cap
- 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.)
- Expired - Fee Related
Links
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000010411 cooking Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Abstract
The utility model relates to a kind of blower fan of range hood, belongs to technical field of electric appliances, and the blower sizes it solving range hood in prior art is comparatively large, the problem that stability is not high.The blower fan of this range hood comprises the external rotor electric machine of spiral case, wind wheel and driving wind wheel rotation, the stator that external rotor electric machine comprises rotating shaft and is connected with rotating shaft, rotating shaft two ends are fixedly connected with spiral case sidewall, the rotor that can rotate around the axis is arranged with outside stator, rotating shaft two ends are respectively equipped with bearing, be arranged with end cap respectively outside two bearings, two described end caps are fixedly connected with rotor respectively.The blower fan of this range hood by arranging external rotor electric machine, wind wheel is connected with external rotor electric machine compacter, has saved installing space, improve the stability that wind wheel rotates simultaneously.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of motor of blower fan, particularly a kind of fan motor applied in range hood.
Background technique
Blower fan in household electric appliance, such as, the blower fan of range hood or fan.The blower fan of range hood mainly comprises motor and impeller.During work, electric machine rotation impeller is rotated, and then is gone out by indoor cooking fume exhausting.Existing electric machine mounting device is that motor has motor mounting plate, and motor mounting plate is directly fastened on mounting bracket by screw, and mounting bracket and volute body are connected by screw fixing.Because motor is inner rotor motor, motor output shaft is provided with blade, during driven by motor wheel rotation, impeller due to motor center of gravity not on straight line, the vibration of impeller can be caused to be delivered on volute body by mounting bracket, cause vibration and drone noise.In addition, along with the growth of service time, on impeller, adhesion has greasy dirt more easily to cause wheel rotation to occur eccentric phenomenon, produces stronger vibrations, affects the working life of kitchen ventilator.In addition, inner rotor motor is separated with the center of blade rotation due to motor, thus takes up room comparatively large, is unfavorable for the installation of product.
Summary of the invention
The purpose of this utility model there are the problems referred to above for existing technology, proposes a kind of compact structure, the blower fan of the range hood that stability in use is high.
The purpose of this utility model realizes by following technical proposal: a kind of blower fan of range hood, comprise spiral case, wind wheel and the external rotor electric machine driving wind wheel to rotate, the stator that described external rotor electric machine comprises rotating shaft and is connected with rotating shaft, described rotating shaft two ends are fixedly connected with spiral case sidewall, the rotor that can rotate around the axis is arranged with outside described stator, described rotating shaft two ends are respectively equipped with bearing, be arranged with end cap respectively outside two described bearings, two described end caps are fixedly connected with rotor respectively.
Pneumatic by outer rotor motor driven wind wheel, the rotor of external rotor electric machine is fixedly connected with wind wheel, and rotating shaft is fixedly connected with spiral case, can conserve space, spiral case size can be made to do little, making blower fan more compact when ensureing wind wheel power.
In the blower fan of above-mentioned range hood, described wind wheel is tubular, and described wind wheel sidepiece is provided with fixed plate, and described end cap is provided with the bolt hole be connected with fixed plate, and described end cap and fixed plate are connected.Be connected with end cap by the fixed plate be arranged on wind wheel, make the rotor turns of external rotor electric machine be that end cap is followed and rotated together, thus drive wind wheel to rotate.
In the blower fan of above-mentioned range hood, described spiral case sidepiece is provided with intake grill, and described wind wheel is arranged at air inlet, and rotating shaft one end of described external rotor electric machine is fixed on spiral case sidewall, and the other end is fixed on the air inlet of spiral case by a fixing frame.
In the blower fan of above-mentioned range hood, described fixing frame comprises the stationary axle that is connected with rotating shaft and is the supporting bar being connected to spiral case sidewall of integral type with stationary axle.
In the blower fan of above-mentioned range hood, described rotating shaft is arranged with the back-up ring be connected with rotating shaft axial restraint, described bearing is fixed between end cap and back-up ring.Back-up ring is fixed in rotating shaft, and make the bearing be sheathed in rotating shaft be restricted between end cap sidewalls and back-up ring, lift shaft forwards dynamic stability.
In the blower fan of above-mentioned range hood, between described bearing and end cap, be provided with the packing ring be sheathed in rotating shaft.Play prevent from wearing and tearing between bearing and end cap by arranging packing ring, the effect preventing bearing's looseness can be played simultaneously.
In the blower fan of above-mentioned range hood, it is hollow shape that described rotating shaft is connected to spiral case sidewall one end, is equipped with cable sleeve in described rotating shaft, is provided with the wire be electrically connected with stator in described sleeve pipe.Arrange wire by the penetration pipe offered in rotating shaft, wire can be prevented to be wound around, and cable sleeve plays insulating effect.
Compared with prior art, the blower fan of this range hood by arranging external rotor electric machine, wind wheel is connected with external rotor electric machine compacter, has saved installing space, improve the stability that wind wheel rotates simultaneously.
Accompanying drawing explanation
Fig. 1 is the plan structure schematic diagram of the blower fan of this range hood;
Fig. 2 is the sectional structure schematic diagram of the blower fan of this range hood;
Fig. 3 is the structural representation of external rotor electric machine in the blower fan of this range hood.
In figure, 1, spiral case; 2, motor; 21, rotating shaft; 22, stator; 23, rotor; 24, end cap; 25, bearing; 26, back-up ring; 27, packing ring; 3, wind wheel; 31, fixed plate; 4, intake grill; 5, fixing frame; 51, stationary axle; 52, supporting bar.
Embodiment
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figure 1 to Figure 3, the blower fan of this range hood comprises spiral case 1, wind wheel 3 and the external rotor electric machine 2 driving wind wheel 3 to rotate, the stator 22 that external rotor electric machine 2 comprises rotating shaft 21 and is connected with rotating shaft 21, rotating shaft 21 two ends are fixedly connected with spiral case 1 sidewall, be arranged with outside stator 22 can around the shaft 21 rotate rotors 23, rotating shaft 21 two ends are respectively equipped with bearing 25, be arranged with end cap 24 respectively outside two bearings 25, two end caps 24 are fixedly connected with rotor 23 respectively.Drive wind wheel 3 pneumatic by external rotor electric machine 2, the rotor 23 of external rotor electric machine 2 is fixedly connected with wind wheel 3, and rotating shaft 21 is fixedly connected with spiral case 1, can conserve space, spiral case 1 size can be made to do little, making blower fan more compact when ensureing wind wheel 3 power.Described wind wheel 3 is in tubular, and described wind wheel 3 sidepiece is provided with fixed plate 31, and described end cap 24 is provided with the bolt hole be connected with fixed plate 31, and described end cap 24 is connected with fixed plate 31.Be connected with end cap 24 by the fixed plate 31 be arranged on wind wheel 3, it is that end cap 24 is followed and rotated together that the rotor 23 of external rotor electric machine 2 is rotated, thus drives wind wheel 3 to rotate.
In the blower fan of this range hood, described spiral case 1 sidepiece is provided with intake grill 4, described wind wheel 3 is arranged at intake grill 4 place, rotating shaft 21 one end of described external rotor electric machine 2 is fixed on spiral case 1 sidewall, the other end is fixed on intake grill 4 place of spiral case 1 by a fixing frame 5, fixing frame 5 comprise the stationary axle 51 that is connected with rotating shaft 21 and with the supporting bar 52 that be connected to spiral case 1 sidewall of stationary axle 51 in integral type.
The rotating shaft 21 of motor 2 is arranged with the back-up ring 26 be connected with rotating shaft 21 axial restraint, described bearing 25 is fixed between end cap 24 and back-up ring 26.Back-up ring 26 is fixed in rotating shaft 21, makes the bearing 25 be sheathed in rotating shaft 21 be restricted between end cap 24 sidewall and back-up ring 26, promotes the stability that bearing 25 rotates.The packing ring 27 be sheathed in rotating shaft 21 is provided with between bearing 25 and end cap 24.Play prevent from wearing and tearing between bearing 25 and end cap 24 by arranging packing ring 27, the effect preventing bearing 25 from loosening can be played simultaneously.It is hollow shape that rotating shaft 21 is connected to spiral case 1 sidewall one end, is equipped with cable sleeve in described rotating shaft 21, is provided with the wire be electrically connected with stator 22 in described sleeve pipe.Arrange wire by the penetration pipe offered in rotating shaft 21, wire can be prevented to be wound around, and cable sleeve plays insulating effect.
The blower fan of this range hood by arranging external rotor electric machine 2, make wind wheel 3 be connected compacter with external rotor electric machine 2, saved installing space, improve the stability that wind wheel 3 rotates simultaneously.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Claims (7)
1. the blower fan of a range hood, comprise spiral case, wind wheel and the external rotor electric machine driving wind wheel to rotate, the stator that described external rotor electric machine comprises rotating shaft and is connected with rotating shaft, described rotating shaft two ends are fixedly connected with spiral case sidewall, are arranged with the rotor that can rotate around the axis outside described stator, and described rotating shaft two ends are respectively equipped with bearing, be arranged with end cap respectively outside two described bearings, two described end caps are fixedly connected with rotor respectively.
2. the blower fan of range hood according to claim 1, it is characterized in that, described wind wheel is tubular, described wind wheel sidepiece is provided with fixed plate, described end cap is provided with the bolt hole be connected with fixed plate, and described end cap and fixed plate are connected, and is connected with end cap by the fixed plate be arranged on wind wheel, make the rotor turns of external rotor electric machine be that end cap is followed and rotated together, thus drive wind wheel to rotate.
3. the blower fan of range hood according to claim 1 and 2, it is characterized in that, described spiral case sidepiece is provided with intake grill, described wind wheel is arranged at air inlet, rotating shaft one end of described external rotor electric machine is fixed on spiral case sidewall, and the other end is fixed on the air inlet of spiral case by a fixing frame.
4. the blower fan of range hood according to claim 3, is characterized in that, described fixing frame comprises the stationary axle that is connected with rotating shaft and is the supporting bar being connected to spiral case sidewall of integral type with stationary axle.
5. the blower fan of range hood according to claim 1 and 2, is characterized in that, described rotating shaft is arranged with the back-up ring be connected with rotating shaft axial restraint, described bearing is fixed between end cap and back-up ring.
6. the blower fan of range hood according to claim 1 and 2, is characterized in that, is provided with the packing ring be sheathed in rotating shaft between described bearing and end cap.
7. the blower fan of range hood according to claim 1 and 2, is characterized in that, it is hollow shape that described rotating shaft is connected to spiral case sidewall one end, is equipped with cable sleeve in described rotating shaft, is provided with the wire be electrically connected with stator in described sleeve pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420869012.3U CN204371724U (en) | 2014-12-31 | 2014-12-31 | A kind of blower fan of range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420869012.3U CN204371724U (en) | 2014-12-31 | 2014-12-31 | A kind of blower fan of range hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204371724U true CN204371724U (en) | 2015-06-03 |
Family
ID=53327948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420869012.3U Expired - Fee Related CN204371724U (en) | 2014-12-31 | 2014-12-31 | A kind of blower fan of range hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204371724U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108134496A (en) * | 2018-01-29 | 2018-06-08 | 东莞市卓奇电子科技有限公司 | The outer rotor brushless motor of fixed shaft type |
| CN110397606A (en) * | 2019-07-09 | 2019-11-01 | 京马电机有限公司 | A kind of ducting assembly device and its installation method |
-
2014
- 2014-12-31 CN CN201420869012.3U patent/CN204371724U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108134496A (en) * | 2018-01-29 | 2018-06-08 | 东莞市卓奇电子科技有限公司 | The outer rotor brushless motor of fixed shaft type |
| CN110397606A (en) * | 2019-07-09 | 2019-11-01 | 京马电机有限公司 | A kind of ducting assembly device and its installation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 Termination date: 20181231 |