CN207573114U - Rotor and magneto - Google Patents
Rotor and magneto Download PDFInfo
- Publication number
- CN207573114U CN207573114U CN201721316226.8U CN201721316226U CN207573114U CN 207573114 U CN207573114 U CN 207573114U CN 201721316226 U CN201721316226 U CN 201721316226U CN 207573114 U CN207573114 U CN 207573114U
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- China
- Prior art keywords
- rotor
- linking arm
- shaft
- fan blade
- outer ring
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Abstract
The utility model provides a kind of rotor and magneto.The rotor includes shaft (1), outer ring magnet (2) and the linking arm (3) being connected between shaft (1) and outer ring magnet (2), is provided on linking arm (3) and air is drained to cause air flow through the circulation passage of rotor.Rotor according to the present utility model can improve the heat dissipation performance of rotor, improve the reliability of motor.
Description
Technical field
The utility model belongs to technical field of motors, and in particular to a kind of rotor and magneto.
Background technology
With the rapid development of permanent magnetism velocity modulation electric engine technology, permanent magnetism velocity modulation electric engine is increasingly valued by people, with biography
Other motors of system electro-magnetic motor etc. are compared, and magneto has the force density high, efficient, easy to maintain, simple in structure etc.
Advantage.
The winding of brshless DC motor, power module and chip can be because the heat dissipation of motor be bad at present, temperature during operation
It can increase, long term time runs the lost of life that can cause motor；Under conditions of high-temperature work environment or high-power operation,
Overheating protection can occur because temperature rises excessively high, it is out of service, limit the use scope of motor；Motor is very in the case of severe
It can extremely burn, reduce the reliability of motor.
Utility model content
Therefore, the technical problem to be solved by the present invention is to provide a kind of rotor and magneto, Neng Gouti
The heat dissipation performance of high rotor improves the reliability of motor.
To solve the above-mentioned problems, the utility model provides a kind of rotor, including shaft, outer ring magnet and connection
Linking arm between shaft and outer ring magnet is provided on linking arm and air is drained to cause air flow through rotor
Circulation passage.
Preferably, circulation passage is included along the axially extending of shaft and through the recirculation hole of linking arm, and recirculation hole is straight hole
Or threaded hole.
Preferably, the hand of spiral of threaded hole is opposite with the rotation direction of rotor.
Preferably, recirculation hole is incremented by along air-flow direction area of section.
Preferably, linking arm is fan blade, and one end of fan blade is connected to the outer wall of shaft, and the other end is connected to outer ring magnet
Inner wall forms circulation passage between the blade of fan blade.
Preferably, fan blade is axial-flow leaf.
Preferably, the axial direction of shaft is provided with multigroup fan blade.
Preferably, the blade of at least two groups fan blades circumferentially shifts to install.
Preferably, linking arm and outer ring magnet are by modeling magnetic particle integrated injection molding.
Another aspect according to the present utility model provides a kind of magneto, and including rotor, which is
Above-mentioned rotor.
Rotor provided by the utility model, including shaft, outer ring magnet and be connected to shaft and outer ring magnet it
Between linking arm, be provided on linking arm and air drained to cause air flow through the circulation passage of rotor.Due to
The circulation passage drained to air to cause air flow through rotor is provided on the linking arm of rotor, therefore in electricity
During machine rotor rotates, can drain to generate by circulation passage and flow through the air-flow of rotor, in circulation passage into
The exchange of promoting the circulation of qi stream, the temperature of environment where reducing winding, electronic component improve the heat dissipation performance of rotor, reduce electricity
Machine entirety Wen Sheng extends motor service life, increases motor reliability, widens motor application range, improves electricity under equal conditions
The efficiency of machine.
Description of the drawings
Fig. 1 is the three-dimensional structure diagram of the rotor of the utility model first embodiment；
Fig. 2 is the structure diagram of the rotor of the utility model first embodiment；
Fig. 3 is the side block diagram of the rotor of the utility model first embodiment；
Fig. 4 is the structure diagram of the rotor of the utility model second embodiment.
Reference numeral is expressed as：
1st, shaft；2nd, outer ring magnet；3rd, linking arm；4th, recirculation hole.
Specific embodiment
With reference to shown in referring to Fig. 1 to Fig. 4, embodiment according to the present utility model, rotor includes shaft 1, outer shroud magnetic
Body 2 and the linking arm 3 being connected between shaft 1 and outer ring magnet 2, be provided on linking arm 3 air is drained so that
Air flows through the circulation passage of rotor.
Air is drained to cause air flow through the stream of rotor due to being provided on the linking arm 3 of rotor
Circulation passage, therefore during rotor rotates, can be drained by circulation passage and generate the air-flow for flowing through rotor,
The exchange of air-flow is carried out in circulation passage, the temperature of environment where reducing winding, electronic component improves dissipating for rotor
Hot property reduces motor entirety Wen Sheng, extends motor service life, increases motor reliability, widens motor application range, improves
The efficiency of motor under equal conditions.
Preferably, linking arm 3 and outer ring magnet 2 are not only simple for process by modeling magnetic particle integrated injection molding, cost compared with
It is low, and the connection structure of linking arm 3 and outer ring magnet 2 can be made more reliable and more stable, improve the service life of rotor.
With reference to shown in referring to Fig. 1 to Fig. 3, first embodiment according to the present utility model, linking arm 3 is fan blade, fan blade
One end is connected to the outer wall of shaft 1, and the other end is connected to the inner wall of outer ring magnet 2, circulation passage is formed between the blade of fan blade.
Since the both ends of fan blade are fixedly connected respectively with shaft 1 and outer ring magnet 2, when shaft 1 rotates, fan blade is same with shaft 1
Step rotation in fan blade rotation process, can generate air-flow flowing, and air-flow flows axially through motor along the fan blade gap of fan blade and turns
Son can interact, and heat is taken away with the high temperature gas flow inside rotor, so as to the overall structure to rotor
Cool down, motor control panel power module heat dissipation effect can be strengthened, power module good heat dissipation effect can be ensured and be transported in motor
Overheating protection will not occur in capable process, widen motor application range.
In addition, after using fan blade, bulk temperature inside motor can be reduced so that motor under equal output power,
Low consumpting power is dropped, improves electric efficiency, additionally it is possible to reduce motor entirety Wen Sheng, extend motor service life, increasing motor can
By property.
Preferably, fan blade is axial-flow leaf, is more conducive to form axial flow, can accelerate air-flow and flow through electricity in an axial direction
The flowing velocity of machine rotor improves air flow rate and amount of flow, improves heat exchanger effectiveness, improves the cooling to rotor
Effect.
Preferably, the axial direction of shaft 1 is provided with multigroup fan blade, can further enhances the axial flowing of air-flow
Effect.
Preferably, the blade of at least two groups fan blades circumferentially shifts to install, and can increase air-flow in rotor inside stream
Dynamic flow accelerates the heat exchange rate between all parts of the air-flow and rotor axially flowed, improves heat exchange efficiency, carry
Height is to the heat transfer effect of all parts of rotor.
With reference to shown in Figure 4, second embodiment according to the present utility model, circulation passage includes the axial direction along shaft 1
Extend through the recirculation hole 4 of linking arm 3.In the present embodiment, due to be provided on linking arm along shaft it is axially extending simultaneously
Perforative recirculation hole 4, therefore during rotor rotates, air-flow can flow through motor out of recirculation hole 4 and turn in an axial direction
It is sub internal, the heat generated inside rotor is taken away, is radiated to rotor, improves the heat dissipation effect of rotor
Fruit.
Recirculation hole 4 can be straight hole or threaded hole or other bent holes.Straight hole herein is the central axis of finger-hole
For straight line, bent hole is that the central axis of finger-hole is bending.
Preferably, in the present embodiment, recirculation hole 4 is threaded hole, the hand of spiral of threaded hole and the rotation of rotor
Direction is opposite.Rotor rotate during, due to the hand of spiral of threaded hole and the rotation direction of rotor on the contrary,
Therefore, the air inlet of threaded hole can be more favorable for air-flow and enter in threaded hole towards direction of flow, can have the gas of bigger
The throughput of flow velocity and bigger is flowed, can more fully exchange heat, change with rotor formation during threaded hole is flowed through
Thermal efficiency higher.Further, since therefore the hand of spiral of threaded hole and the rotation direction of rotor in rotor on the contrary, turn
Under dynamic and threaded hole spiral induced effect, it is also more conducive to the axial air flow to be formed and be flowed along threaded hole, Neng Goubao
The sufficient axial flow of card flows through rotor, and effective temperature-reducing is formed to rotor.
Preferably, circumferential uniformly arrangement of multiple recirculation holes 4 along linking arm 3, can ensure the circumferential direction side to rotor
To various pieces heat dissipation it is uniform, further ensure the heat dissipation effect of rotor.
Preferably, recirculation hole 4 is incremented by along air-flow direction area of section, can be formed by the axial flowing of air-flow
Drainage effect so as to be more conducive to the generation of axial flow, radiates conducive to rotor.
Embodiment according to the present utility model, magneto include rotor, which turns for above-mentioned motor
Son.
For those skilled in the art it is easily understood that under the premise of not conflicting, above-mentioned each advantageous manner can be free
Ground combination, superposition.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.The above is only the preferred embodiment of the utility model, it is noted that for the art
For those of ordinary skill, under the premise of the utility model technical principle is not departed from, several improvement and modification can also be made,
These improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (10)
1. a kind of rotor, which is characterized in that including shaft (1), outer ring magnet (2) and be connected to the shaft (1) and
Linking arm (3) between the outer ring magnet (2) is provided on the linking arm (3) and air is drained so that air stream
Circulation passage through the rotor.
2. rotor according to claim 1, which is characterized in that the circulation passage is included along the shaft (1)
Recirculation hole (4) axially extending and through the linking arm (3), the recirculation hole (4) are straight hole or threaded hole.
3. rotor according to claim 2, which is characterized in that the hand of spiral of the threaded hole turns with the motor
The rotation direction of son is opposite.
4. the rotor according to Claims 2 or 3, which is characterized in that the recirculation hole (4) is along air-flow direction
Area of section is incremented by.
5. rotor according to claim 1, which is characterized in that the linking arm (3) be fan blade, the one of the fan blade
End is connected to the outer wall of the shaft (1), and the other end is connected to the inner wall of the outer ring magnet (2), the blade of the fan blade it
Between form the circulation passage.
6. rotor according to claim 5, which is characterized in that the fan blade is axial-flow leaf.
7. rotor according to claim 5, which is characterized in that be provided with along the axial direction of the shaft (1) more
Group fan blade.
8. rotor according to claim 7, which is characterized in that at least the blade of fan blade circumferentially misplaces described in two groups
Setting.
9. the rotor according to any one of claims 1 to 3,5 to 8, which is characterized in that the linking arm (3) and
The outer ring magnet (2) is by modeling magnetic particle integrated injection molding.
10. a kind of magneto, including rotor, which is characterized in that the rotor is any in claim 1 to 9
Rotor described in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721316226.8U CN207573114U (en) | 2017-10-11 | 2017-10-11 | Rotor and magneto |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721316226.8U CN207573114U (en) | 2017-10-11 | 2017-10-11 | Rotor and magneto |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207573114U true CN207573114U (en) | 2018-07-03 |
Family
ID=62695208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721316226.8U Active CN207573114U (en) | 2017-10-11 | 2017-10-11 | Rotor and magneto |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207573114U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107707052A (en) * | 2017-10-11 | 2018-02-16 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor and magneto |
-
2017
- 2017-10-11 CN CN201721316226.8U patent/CN207573114U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107707052A (en) * | 2017-10-11 | 2018-02-16 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor and magneto |
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