CN206668593U - A kind of outer rotor extending shaft fixes backward centrifugal blower - Google Patents
A kind of outer rotor extending shaft fixes backward centrifugal blower Download PDFInfo
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- CN206668593U CN206668593U CN201720421570.7U CN201720421570U CN206668593U CN 206668593 U CN206668593 U CN 206668593U CN 201720421570 U CN201720421570 U CN 201720421570U CN 206668593 U CN206668593 U CN 206668593U
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- China
- Prior art keywords
- extending shaft
- impeller
- outer rotor
- backward centrifugal
- electric machine
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Abstract
The utility model discloses a kind of outer rotor extending shaft to fix backward centrifugal blower, belongs to field of air conditioning.It includes backward centrifugal impeller, external rotor electric machine, jump ring, nut and impeller chassis, the backward centrifugal impeller includes wheel cap, wheel disc and blade, the outer rotor of the external rotor electric machine is provided with extending shaft, grooving is provided with the middle part of extending shaft, jump ring is provided with grooving, extending shaft front end is provided with screw thread, outer rotor is stretched into circular platform, by shaft hole sleeve, the side on extending shaft is resisted against opposite side nut check on jump ring to circular platform, the impeller chassis is fixed with wheel disc, the center on impeller chassis is provided with through hole, and the inner stator of external rotor electric machine is stretched out by through hole.The utility model can disassemble impeller and external rotor electric machine, can individually carry out dynamic balancing measurement to impeller and external rotor electric machine, can separate during failure and repair.
Description
Technical field
It the utility model is related to a kind of outer rotor extending shaft and fix backward centrifugal blower, belong to field of air conditioning.
Background technology
After outer rotor to centrifugal blower be a kind of rotor rotated outside stator, impeller fixed on rotor, after to centrifugation
The blower fan of air supply mode, have the advantages that to operate steadily, noise is low, small volume.At present to the impeller of centrifugal blower after outer rotor
The fixed form of integral molded plastic is used with motor outer rotor, motor outer rotor rotational band moves wheel rotation, although this fixation more
Mode is easy, quick, is adapted to batch production；But due to the injection of impeller and motor outer rotor together with, impeller and electricity during use
Machine needs to carry out dynamic balancing measurement simultaneously, improves dynamic balancing measurement difficulty；On the other hand, when motor or impeller produce failure
Whole blower fan can only be changed, it is impossible to motor and impeller are separately repaired, improve input cost.
The content of the invention
Technical problem to be solved in the utility model is：A kind of outer rotor extending shaft is provided and fixes backward centrifugation wind
Machine, it needs to carry out dynamic balancing measurement to impeller and motor simultaneously after solving current outer rotor to centrifugal blower, and test is difficult
The problem of degree is high and can not disassemble separated maintenance.
Technical problem to be solved in the utility model takes following technical scheme to realize：
A kind of outer rotor extending shaft fixes backward centrifugal blower, it include backward centrifugal impeller, external rotor electric machine, jump ring,
Nut and impeller chassis；
The backward centrifugal impeller includes wheel cap, wheel disc and blade, and wheel cap center is provided with air inlet, is provided with the middle part of wheel disc convex
The circular platform risen, circular platform center are provided with axis hole, and blade is provided with multiple and is uniformly fixed between wheel cap and wheel disc；
The outer rotor of the external rotor electric machine is provided with extending shaft, and grooving is provided with the middle part of extending shaft, jump ring is provided with grooving,
Extending shaft front end is provided with screw thread, and outer rotor is stretched into circular platform, circular platform by shaft hole sleeve on extending shaft side against
The opposite side nut check on jump ring；
The impeller chassis is fixed with wheel disc, and the center on impeller chassis is provided with through hole, and the inner stator of external rotor electric machine passes through
Through hole stretches out.
As preferred embodiment, the external rotor electric machine is direct current brushless permanent magnet motor.
As preferred embodiment, the external rotor electric machine is the pole brushless electric machine of three-phase ten.
As preferred embodiment, the diameter of the external rotor electric machine extending shaft is no more than 20mm, of length no more than 100mm.
As preferred embodiment, the backward centrifugal impeller uses High-strength light-weight modified ABS material.
Ultrasonic bonding is used as preferred embodiment, between the impeller chassis and wheel disc or is fixed with glue.
As preferred embodiment, pad is provided between the circular platform of the nut and wheel disc.
The beneficial effects of the utility model are：Outer rotor is provided with extending shaft, is extended outer rotor with jump ring by nut
Axle is fixed with impeller, is easily installed, is disassembled, and individually can be carried out dynamic balancing measurement to impeller and motor, be reduced difficulty of test；
When impeller or motor break down, dismounting nut, which can separate motor with impeller, is repaired or replaced new accessory, drops
Low input cost；Impeller uses High-strength light-weight modified ABS material, and intensity is high, weight is low, improves blower fan efficiency.
Brief description of the drawings
Fig. 1 is sectional view of the present utility model；
Fig. 2 is stereogram of the present utility model.
In figure：Backward centrifugal impeller 1, wheel cap 11, wheel disc 12, axis hole 121, blade 13, external rotor electric machine 2, extending shaft 21,
Jump ring 3, nut 4, impeller chassis 5.
Embodiment
In order to be easy to understand to technological means of the present utility model, creation characteristic, reached purpose and effect, tie below
Conjunction is specifically illustrating, and the utility model is expanded on further.
As Figure 1-Figure 2, a kind of outer rotor extending shaft 21 fixes backward centrifugal blower, it include backward centrifugal impeller 1,
External rotor electric machine 2, jump ring 3, nut 4 and impeller chassis 5；
Backward centrifugal impeller 1 includes wheel cap 11, wheel disc 12 and blade 13, and the center of wheel cap 11 is provided with air inlet, in wheel disc 12
Portion is provided with raised circular platform, and circular platform center is provided with axis hole 121, and blade 13 is provided with multiple and be uniformly fixed on wheel cap
Between 11 and wheel disc 12；
The outer rotor of external rotor electric machine 2 is provided with extending shaft 21, and the middle part of extending shaft 21 is provided with grooving, jump ring is provided with grooving
3, the front end of extending shaft 21 is provided with screw thread, and outer rotor is stretched into circular platform, and circular platform is enclosed on extending shaft 21 by axis hole 121
Side is resisted against opposite side nut 4 on jump ring 3 and locked；
Impeller chassis 5 is fixed with wheel disc 12, and the center on impeller chassis 5 is provided with through hole, and the inner stator of external rotor electric machine 2 passes through
Through hole stretches out.
External rotor electric machine 2 is direct current brushless permanent magnet motor.
External rotor electric machine 2 is the pole brushless electric machine of three-phase ten.
The diameter of the extending shaft 21 of external rotor electric machine 2 is no more than 20mm, of length no more than 100mm.
Backward centrifugal impeller 1 uses High-strength light-weight modified ABS material.
Ultrasonic bonding is used between impeller chassis 5 and wheel disc 12 or is fixed with glue.
Pad, the contact surface of increase nut 4 and the circular platform of wheel disc 12 are provided between the circular platform of nut 4 and wheel disc 12
Product, wheel disc 12 is locked.
During work, the inner stator of external rotor electric machine 2 is fixed, external rotor electric machine 2, which rotates, after startup drives backward centrifugation leaf
Wheel 1 rotates.
Outer rotor is provided with extending shaft 21, and outer rotor extending shaft 21 is fixed with impeller with jump ring 3 by nut 4, is easy to
Install, disassemble, dynamic balancing measurement individually can be carried out to impeller and motor, reduce difficulty of test；When backward centrifugal impeller 1 or
When external rotor electric machine 2 breaks down, remove nut 4 external rotor electric machine 2 can be separated with backward centrifugal impeller 1 repaired or
The accessory more renewed, reduces input cost；Impeller uses High-strength light-weight modified ABS material, and intensity is high, weight is low, carries
High blower fan efficiency.
The advantages of general principle and principal character of the present utility model and the utility model has been shown and described above.One's own profession
The technical staff of industry it should be appreciated that the utility model is not restricted to the described embodiments, do not depart from the utility model spirit and
On the premise of scope, the utility model also has various changes and modifications, and these changes and improvements both fall within the utility model will
In the range of asking protection.The utility model requires protection scope is by appended claims and its equivalent thereof.
Claims (7)
1. a kind of outer rotor extending shaft fixes backward centrifugal blower, it is characterised in that：It includes backward centrifugal impeller, external rotor electric
Machine, jump ring, nut and impeller chassis；
The backward centrifugal impeller includes wheel cap, wheel disc and blade, and wheel cap center is provided with air inlet, projection is provided with the middle part of wheel disc
Circular platform, circular platform center are provided with axis hole, and blade is provided with multiple and is uniformly fixed between wheel cap and wheel disc；
The outer rotor of the external rotor electric machine is provided with extending shaft, and grooving is provided with the middle part of extending shaft, jump ring is provided with grooving, is extended
Axle front end is provided with screw thread, and outer rotor is stretched into circular platform, and by shaft hole sleeve, the side on extending shaft is resisted against card to circular platform
Opposite side nut check on spring；
The impeller chassis is fixed with wheel disc, and the center on impeller chassis is provided with through hole, and the inner stator of external rotor electric machine passes through through hole
Stretch out.
2. a kind of outer rotor extending shaft according to claim 1 fixes backward centrifugal blower, it is characterised in that:Described outer turn
Sub-motor is direct current brushless permanent magnet motor.
3. a kind of outer rotor extending shaft according to claim 1 fixes backward centrifugal blower, it is characterised in that:Described outer turn
Sub-motor is the pole brushless electric machine of three-phase ten.
4. a kind of outer rotor extending shaft according to claim 1 fixes backward centrifugal blower, it is characterised in that:Described outer turn
The diameter of sub-motor extending shaft is no more than 20mm, of length no more than 100mm.
5. a kind of outer rotor extending shaft according to claim 1 fixes backward centrifugal blower, it is characterised in that：It is described backward
Centrifugal impeller uses High-strength light-weight modified ABS material.
6. a kind of outer rotor extending shaft according to claim 1 fixes backward centrifugal blower, it is characterised in that：The impeller
Ultrasonic bonding is used between chassis and wheel disc or is fixed with glue.
7. a kind of outer rotor extending shaft according to claim 1 fixes backward centrifugal blower, it is characterised in that：The nut
Pad is provided between the circular platform of wheel disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720421570.7U CN206668593U (en) | 2017-04-21 | 2017-04-21 | A kind of outer rotor extending shaft fixes backward centrifugal blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720421570.7U CN206668593U (en) | 2017-04-21 | 2017-04-21 | A kind of outer rotor extending shaft fixes backward centrifugal blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206668593U true CN206668593U (en) | 2017-11-24 |
Family
ID=60375597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720421570.7U Expired - Fee Related CN206668593U (en) | 2017-04-21 | 2017-04-21 | A kind of outer rotor extending shaft fixes backward centrifugal blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206668593U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533512A (en) * | 2018-05-27 | 2018-09-14 | 东莞市兴东电子有限公司 | A kind of hydraulic centrifugal wind turbine of structure optimization |
| CN108547783A (en) * | 2018-05-27 | 2018-09-18 | 东莞市兴东电子有限公司 | A kind of adjustable hydraulic centrifugal wind turbine |
| CN109236737A (en) * | 2018-11-23 | 2019-01-18 | 常州朗奇威电器有限公司 | A kind of centrifugal impeller for motor radiating |
| CN117167846A (en) * | 2023-11-02 | 2023-12-05 | 珠海三友环境技术有限公司 | dehumidifier |
| CN117685240A (en) * | 2023-12-11 | 2024-03-12 | 嘉善卡固电气设备股份有限公司 | Outer rotor centrifugal fan with high protection level |
-
2017
- 2017-04-21 CN CN201720421570.7U patent/CN206668593U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533512A (en) * | 2018-05-27 | 2018-09-14 | 东莞市兴东电子有限公司 | A kind of hydraulic centrifugal wind turbine of structure optimization |
| CN108547783A (en) * | 2018-05-27 | 2018-09-18 | 东莞市兴东电子有限公司 | A kind of adjustable hydraulic centrifugal wind turbine |
| CN109236737A (en) * | 2018-11-23 | 2019-01-18 | 常州朗奇威电器有限公司 | A kind of centrifugal impeller for motor radiating |
| CN117167846A (en) * | 2023-11-02 | 2023-12-05 | 珠海三友环境技术有限公司 | dehumidifier |
| CN117167846B (en) * | 2023-11-02 | 2024-01-30 | 珠海三友环境技术有限公司 | Dehumidifier |
| CN117685240A (en) * | 2023-12-11 | 2024-03-12 | 嘉善卡固电气设备股份有限公司 | Outer rotor centrifugal fan with high protection level |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171124 Termination date: 20200421 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |