CN203482065U - Direct current draught fan - Google Patents
Direct current draught fan Download PDFInfo
- Publication number
- CN203482065U CN203482065U CN201320304731.6U CN201320304731U CN203482065U CN 203482065 U CN203482065 U CN 203482065U CN 201320304731 U CN201320304731 U CN 201320304731U CN 203482065 U CN203482065 U CN 203482065U
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- stator core
- magnet ring
- circuit board
- rotor
- main pole
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- Expired - Fee Related
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Abstract
A direct current draught fan includes a housing (1), rotor blades (2), a rotor inner sleeve (3), a spindle sleeve (4), a bearing (5), a shaft (6), a main magnetic pole (7), a magnet ring (8), a Hall member (9), a circuit board (10), a stator core (11) and an end cap (12). The magnetic pole of the magnet ring (8) providing a magnetic field reversing signal for the Hall member is symmetrically distributed in periodicities, the main magnetic pole (7) is symmetrically distributed in aperiodicity, the Hall member (9) is fixed on the circuit board (10), the circuit board (10) and the stator core (11) are fixed at the outside of the spindle sleeve (4), and an included angle between the Hall member (9) and the central line of a small tooth on the stator core (11) is 6 degrees. The direct current draught fan is small in volume and stable in performance, can be popularized to various electrical equipment needing ventilation and heat dissipation, and has great economic value and social value.
Description
Technical field
The utility model relates to structural design and the applied technical field of blower fan, and a kind of DC fan is provided especially.
Background technology
Existing DC fan shell mostly is plastic mould pressing structure, and it is simple in structure, cheap; This product casing and rotor blade are formed by aluminium die casting, and structural strength is good, and environmental resistance is strong, reliable, and special structural design, have avoided startup dead point.
People urgently wish to obtain the good DC fan of a kind of technique effect.
Utility model content
Order of the present utility model is to provide the good DC fan of a kind of technique effect.
The DC fan that the utility model provides, it is constructed as follows: housing 1, rotor blade 2, rotor inner sleeve 3, axle sleeve 4, bearing 5, axle 6, main pole 7, magnet ring 8, Hall part 9, circuit board 10, stator core 11, end cap 12; Rotor blade 2 is die cast as one by rotor inner sleeve 3 and axle 6, and main pole 7 and magnet ring 8 fixed bondings are in rotor inner sleeve 3 inner sides, and main pole 7 and magnet ring 8 are coaxial and arrange successively on DC fan axis direction, and main pole 7 is in magnet ring 8 inner sides; Described rotor blade 2, rotor inner sleeve 3, main pole 7, magnet ring 8, axle 6 form rotor assembly; Rotor assembly is supported in axle sleeve 4 by bearing 5; Described axle sleeve 4 is fixed on housing 1 by end cap 12, it is characterized in that: to Hall part, provide the magnet ring 8 magnetic pole Cycle-symmetries of magnetic field commutator signal to distribute, concrete structure is referring to accompanying drawing 5, main pole 7 aperiodicity are symmetrical, concrete structure is referring to accompanying drawing 4, Hall part 9 is fixed on circuit board 10, and circuit board 10 and stator core 11 are fixed on outside axle sleeve 4; The canine tooth avoid the starting dead point little toothing of holding concurrently is set on described stator core 11, and this kind of structure makes starting torque non-vanishing, can effectively avoid starting dead point.Concrete structure is referring to accompanying drawing 6.6 ° of the angles of the center line of the little tooth on Hall part 9 and stator core 11.
The power supply that described DC fan is used is specially the power supply that output voltage is 28VDC.
Described axle sleeve 4 outside fix step center lines align with little tooth center line on stator core 11, axle sleeve 4 outside fix steps overlap with circuit board 10 positioning ports, and Hall part 9 departs from the certain angle of circuit board positioning port, located like this relative position between Hall part 9 and stator core 11, angle is 6.
The common built-up circuit board component of circuit board and Hall part, referring to accompanying drawing 3.
DC fan described in the utility model belongs to DC permanent-magnetic brushless blower fan, during work, be fixed on two phase winding alternate energisations on stator core 11, thereby under the magnetic field exciting at it and rotor permanent magnet effect, produce the electromagnetic torque of constant direction, rotor driven blade, produces Air Flow.
DC fan described in the utility model can be used for the heat radiation of helicopter turntable, adopts Hall part electronic commutation, realizes blower fan and continues to rotate, and has the 11000rpm of being not less than and obtains high rotating speed, is not less than 1.8m
3the Wind Volume of/min, not higher than the features such as low noise of 75dB, and environmental resistance is good, can be in sand and dust, damp and hot, salt fog, mould, the adverse circumstances such as drench with rain reliability service, anti-mechanical environment is good, extend on the various electric equipments that need ventilation and heat, volume is little, and stable performance has comparatively huge economic worth and social value.
Accompanying drawing explanation
Fig. 1 is the structure chart of DC fan;
Fig. 2 stator core assembly assumption diagram;
Fig. 3 circuit board assemblies structure chart;
Fig. 4 is main pole structure chart;
Fig. 5 is magnet ring structure figure;
Fig. 6 is stator core construction figure.
Embodiment
Embodiment 1
The DC fan that the present embodiment provides, it is constructed as follows: housing 1, rotor blade 2, rotor inner sleeve 3, axle sleeve 4, bearing 5, axle 6, main pole 7, magnet ring 8, Hall part 9, circuit board 10, stator core 11, end cap 12; Rotor blade 2 is die cast as one by rotor inner sleeve 3 and axle 6, and main pole 7 and magnet ring 8 fixed bondings are in rotor inner sleeve 3 inner sides, and main pole 7 and magnet ring 8 are coaxial and arrange successively on DC fan axis direction, and main pole 7 is in magnet ring 8 inner sides; Described rotor blade 2, rotor inner sleeve 3, main pole 7, magnet ring 8, axle 6 form rotor assembly; Rotor assembly is supported in axle sleeve 4 by bearing 5; Described axle sleeve 4 is fixed on housing 1 by end cap 12, it is characterized in that: to Hall part, provide the magnet ring 8 magnetic pole Cycle-symmetries of magnetic field commutator signal to distribute, concrete structure is referring to accompanying drawing 5, main pole 7 aperiodicity are symmetrical, concrete structure is referring to accompanying drawing 4, Hall part 9 is fixed on circuit board 10, and circuit board 10 and stator core 11 are fixed on outside axle sleeve 4; The canine tooth avoid the starting dead point little toothing of holding concurrently is set on described stator core 11, and this kind of structure makes starting torque non-vanishing, can effectively avoid starting dead point.Concrete structure is referring to accompanying drawing 6.6 ° of the angles of the center line of the little tooth on Hall part 9 and stator core 11.
The power supply that described DC fan is used is specially the power supply that output voltage is 28VDC.
Described axle sleeve 4 outside fix step center lines align with little tooth center line on stator core 11, axle sleeve 4 outside fix steps overlap with circuit board 10 positioning ports, and Hall part 9 departs from the certain angle of circuit board positioning port, located like this relative position between Hall part 9 and stator core 11, angle is 6.
The common built-up circuit board component of circuit board and Hall part, referring to accompanying drawing 3.
Described in the present embodiment, DC fan belongs to DC permanent-magnetic brushless blower fan, during work, be fixed on two phase winding alternate energisations on stator core 11, thereby under the magnetic field exciting at it and rotor permanent magnet effect, produce the electromagnetic torque of constant direction, rotor driven blade, produces Air Flow.
DC fan described in the present embodiment can be used for the heat radiation of helicopter turntable, adopts Hall part electronic commutation, realizes blower fan and continues to rotate, and has the 11000rpm of being not less than and obtains high rotating speed, is not less than 1.8m
3the Wind Volume of/min, not higher than the features such as low noise of 75dB, and environmental resistance is good, can be in sand and dust, damp and hot, salt fog, mould, the adverse circumstances such as drench with rain reliability service, anti-mechanical environment is good, extend on the various electric equipments that need ventilation and heat, volume is little, and stable performance has comparatively huge economic worth and social value.
Claims (2)
1. a DC fan, is constructed as follows: housing (1), rotor blade (2), rotor inner sleeve (3), axle sleeve (4), bearing (5), axle (6), main pole (7), magnet ring (8), Hall part (9), circuit board (10), stator core (11), end cap (12); Described rotor blade (2) is die cast as one by rotor inner sleeve (3) and axle (6), main pole (7) and magnet ring (8) fixed bonding are in rotor inner sleeve (3) inner side, main pole (7) and magnet ring (8) are coaxial and arrange successively on DC fan axis direction, and main pole (7) is positioned at magnet ring (8) inner side; Described rotor blade (2), rotor inner sleeve (3), main pole (7), magnet ring (8) form rotor assembly with axle (6); Rotor assembly is supported in axle sleeve (4) by bearing (5); Described axle sleeve (4) is fixed on housing (1) by end cap (12), it is characterized in that: to Hall part, provide magnet ring (8) the magnetic pole Cycle-symmetry of magnetic field commutator signal to distribute, main pole (7) aperiodicity is symmetrical, it is upper that Hall part (9) is fixed on circuit board (10), and circuit board (10) and stator core (11) are fixed on outside axle sleeve (4); Described stator core (11) is upper arranges the canine tooth of avoiding the starting dead point little toothing of holding concurrently, and Hall part (9) is 6 ° with the angle of the upper little tooth center line of stator core (11).
2. according to DC fan described in claim 1, it is characterized in that: the power supply that described DC fan is used is specially the power supply that output voltage is 28VDC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320304731.6U CN203482065U (en) | 2013-05-29 | 2013-05-29 | Direct current draught fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320304731.6U CN203482065U (en) | 2013-05-29 | 2013-05-29 | Direct current draught fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203482065U true CN203482065U (en) | 2014-03-12 |
Family
ID=50230313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320304731.6U Expired - Fee Related CN203482065U (en) | 2013-05-29 | 2013-05-29 | Direct current draught fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203482065U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105305696A (en) * | 2014-07-04 | 2016-02-03 | 沈阳兴华航空电器有限责任公司 | High-protection-level brushless direct current motor |
-
2013
- 2013-05-29 CN CN201320304731.6U patent/CN203482065U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105305696A (en) * | 2014-07-04 | 2016-02-03 | 沈阳兴华航空电器有限责任公司 | High-protection-level brushless direct current motor |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20170529 |