CN208190489U - A kind of novel brushless motor - Google Patents
A kind of novel brushless motor Download PDFInfo
- Publication number
- CN208190489U CN208190489U CN201820593158.8U CN201820593158U CN208190489U CN 208190489 U CN208190489 U CN 208190489U CN 201820593158 U CN201820593158 U CN 201820593158U CN 208190489 U CN208190489 U CN 208190489U
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- rotor
- permanent magnet
- main shaft
- hall element
- shell
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Abstract
The utility model discloses a kind of novel brushless motor, including shell, it is placed in the intracorporal stator of shell, rotor and the main shaft being installed on rotor, the rear end cap of the main shaft and shell passes through bearing and connects；The outside of the rear end cap is equipped with Hall element support；The rotor includes rotor core, the rotor core is equipped with the second permanent magnet, second permanent magnet on magnetic slot length direction size and the second permanent magnet trough two-end-point the ratio of the outer diameter arc length of the corresponding rotor is 0.6634~0.72 between two lines of the rotor core line of centres respectively.The utility model passes through Hall element support, it is able to extend Hall element service life, avoid influence of the hot environment to Hall element signal, and, by the ratio that permanent magnet width and corresponding rotor diameter arc length is arranged, to make permanent-magnet brushless DC electric machine counter electromotive force with higher, thus electromagnetic torque with higher and electric efficiency under that loading condition.
Description
Technical field
The utility model relates to a kind of motors, especially brushless motor.
Background technique
Brshless DC motor is the direct current generator that magnetic field is established by one or more permanent magnet, performance and constant excitation megnet electricity
The separately excited DC machine of stream is similar, can easily be adjusted the speed by change armature voltage.And compared with separated exciting dc motor,
Have many advantages, such as that small in size, high-efficient, structure is simple, copper consumption is few, is widely used in various portable electronic equipments or device
In tool, also it is widely used in the industries such as automobile, ship, aviation, machinery, in some such as cameras, video recorder high, refined, peak products
Also it is widely used.And currently, due to structure limitation, existing permanent-magnet brushless DC electric machine be used in continue varying load it is electronic
When on tool, the torque of output is relatively small, and electric efficiency is lower, and existing brshless DC motor is by Hall member
Part is mounted on the iron core of motor stator, and motor is constantly in febrile state when motor works, and will cause damage of the Hall without part,
Once and Hall element damage dismounting, replacement get up it is extremely difficult, for motor maintenance and use affect.
Utility model content
Technical problem to be solved by the utility model is: providing one kind overcomes above-mentioned insufficient new-type brushless motor.
The solution that the utility model solves its technical problem is: a kind of novel brushless motor, including shell are placed in shell
The rear end cap of intracorporal stator, rotor and the main shaft being installed on rotor, the main shaft and shell is connected by bearing；After described
The outside of end cap is equipped with Hall element support；The lower part of the Hall element support is equipped with the magnet steel pallet with motor axis connection,
Permanent magnet is equipped in the magnet steel pallet, the opening of the rear end cap is connected with a cover；The rotor includes rotor core, institute
The magnetic slot that rotor core circumferentially offers V-arrangement is stated, the magnetic slot is equipped with the second permanent magnet, and second permanent magnet is described
Size on magnetic slot length direction and the second permanent magnet trough two-end-point two companies with the rotor core line of centres respectively
The ratio of the outer diameter arc length of the corresponding rotor is 0.6634~0.72 between line.
As a further improvement of the above technical scheme, magnetic bridge is formed between magnetic slot both ends and the rotor periphery,
The magnetic bridge is 0.8~1.0mm in the size of the rotor radial.
As a further improvement of the above technical scheme, the front end of the shell includes drive end bearing bracket, and is connected with drive end bearing bracket
The reduction gearbox connect, the reduction gearbox include planetary gear speed reducing mechanism, and the planetary gear speed reducing mechanism includes sun gear, ring gear, is located at
Planetary gear and connection cover on planet carrier, the drive end bearing bracket, ring gear and connection cover are integrally formed, the sun gear and main shaft
It is fixedly connected.
As a further improvement of the above technical scheme, second permanent magnet includes cavity, is filled in the cavity
Mass center block, the axle center of the cavity and the axis parallel of main shaft but is not overlapped.
The beneficial effects of the utility model are: the utility model is by Hall element support, being able to extend Hall element makes
With the service life, influence of the hot environment to Hall element signal is avoided, and dismounting maintenance conveniently is carried out to it, body will not be generated
Damage, moreover, by the ratio of setting permanent magnet width and corresponding rotor diameter arc length, to make the permanent magnet brushless dc
Machine counter electromotive force with higher, thus electromagnetic torque with higher and electric efficiency under that loading condition.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described.Obviously, described attached drawing is a part of the embodiment of the utility model, rather than complete
Portion's embodiment, those skilled in the art without creative efforts, can also be obtained according to these attached drawings it
His design scheme and attached drawing.
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
It is carried out below with reference to technical effect of the embodiment and attached drawing to the design of the utility model, specific structure and generation
It clearly and completely describes, to be completely understood by the purpose of this utility model, feature and effect.Obviously, described embodiment
It is a part of the embodiment of the utility model, rather than whole embodiments, it is based on the embodiments of the present invention, the skill of this field
Art personnel other embodiments obtained without creative efforts belong to the model of the utility model protection
It encloses.In addition, all connection/connection relationships being previously mentioned in text, not singly refer to that component directly connects, and referring to can be according to specific reality
Situation is applied, by adding or reducing couple auxiliary, to form more preferably coupling structure.Each technology in the invention is special
Sign, can be with combination of interactions under the premise of not conflicting conflict.
Referring to Fig.1, a kind of novel brushless motor including shell 1, the stator being placed in shell 1, rotor and is installed on casing
On bearing 2, shell 1 include rear end cap 3, the stator be equipped with iron core 4, divide slot coiling 5 and inductive circuit board on iron core 4
6, the rotor includes main shaft 7, the copper ring being mounted on main shaft 78 and magnet ring 9；The rear end cap of the main shaft and shell passes through axis
Hold connection；The outside of the rear end cap is equipped with Hall element support；The lower part of the Hall element support is equipped with to be connected with motor shaft
The magnet steel pallet connect, the magnet steel pallet is interior to be equipped with permanent magnet, and the opening of the rear end cap is connected with a cover；The rotor packet
Including rotor core, the rotor core circumferentially offers the magnetic slot of V-arrangement, and the magnetic slot is equipped with the second permanent magnet, and described
Size of two permanent magnets on magnetic slot length direction and the second permanent magnet trough two-end-point respectively with the rotor core
The ratio of the outer diameter arc length of the corresponding rotor is 0.6634~0.72 between two lines of the line of centres.
It is further used as preferred embodiment, forms magnetic bridge between magnetic slot both ends and the rotor periphery, it is described
Magnetic bridge is 0.8~1.0mm in the size of the rotor radial.
It is further used as preferred embodiment, the front end of the shell includes drive end bearing bracket, and connect with drive end bearing bracket
Reduction gearbox, the reduction gearbox include planetary gear speed reducing mechanism, and the planetary gear speed reducing mechanism includes sun gear, ring gear, is located at planet
Planetary gear and connection cover on frame, the drive end bearing bracket, ring gear and connection cover are integrally formed, and the sun gear is fixed with main shaft
Connection.By increasing reduction gearbox, the application range of brushless motor can be made broader, and the front cover and ring gear of motor
It is integrated, the volume of motor can be further decreased.
It is further used as preferred embodiment, second permanent magnet includes cavity, and mass center is filled in the cavity
Block, the axle center of the cavity and the axis parallel of main shaft but is not overlapped.Aligning can be played to the rotation of rotor by mass center block
Effect keep dynamic balancing so that rotor is when high-speed rotation.
The better embodiment of the utility model is illustrated above, but the invention be not limited to it is described
Embodiment, those skilled in the art can also make various equivalent changes without departing from the spirit of the present invention
Type or replacement, these equivalent variation or replacement are all included in the scope defined by the claims of the present application.
Claims (4)
1. a kind of novel brushless motor, it is characterised in that: including shell, be placed in the intracorporal stator of shell, rotor and be installed on rotor
On main shaft, the rear end cap of the main shaft and shell passes through bearing and connects；The outside of the rear end cap is equipped with Hall element support；
The lower part of the Hall element support is equipped with the magnet steel pallet with motor axis connection, is equipped with permanent magnet, institute in the magnet steel pallet
The opening for stating rear end cap is connected with a cover；The rotor includes rotor core, and the rotor core circumferentially offers V-arrangement
Magnetic slot, the magnetic slot are equipped with the second permanent magnet, size of second permanent magnet on magnetic slot length direction with it is described
Second permanent magnet trough two-end-point respectively between two lines of the rotor core line of centres the corresponding rotor outer diameter
The ratio of arc length is 0.6634~0.72.
2. novel brushless motor according to claim 1, it is characterised in that: magnetic slot both ends and the rotor periphery it
Between form magnetic bridge, the magnetic bridge is 0.9~1.2mm in the size of the rotor radial.
3. novel brushless motor according to claim 2, it is characterised in that: the front end of the shell includes drive end bearing bracket, with
And the reduction gearbox connecting with drive end bearing bracket, the reduction gearbox include planetary gear speed reducing mechanism, the planetary gear speed reducing mechanism include sun gear,
Ring gear, the planetary gear being located on planet carrier and connection cover, the drive end bearing bracket, ring gear and connection cover are integrally formed, described
Sun gear is fixedly connected with main shaft.
4. novel brushless motor according to claim 3, it is characterised in that: second permanent magnet includes cavity, described
It is filled with mass center block in cavity, the axle center of the cavity and the axis parallel of main shaft but is not overlapped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820593158.8U CN208190489U (en) | 2018-04-24 | 2018-04-24 | A kind of novel brushless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820593158.8U CN208190489U (en) | 2018-04-24 | 2018-04-24 | A kind of novel brushless motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208190489U true CN208190489U (en) | 2018-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820593158.8U Active CN208190489U (en) | 2018-04-24 | 2018-04-24 | A kind of novel brushless motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN208190489U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108418380A (en) * | 2018-04-24 | 2018-08-17 | 深圳市精锐昌科技有限公司 | A kind of novel brushless motor |
-
2018
- 2018-04-24 CN CN201820593158.8U patent/CN208190489U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108418380A (en) * | 2018-04-24 | 2018-08-17 | 深圳市精锐昌科技有限公司 | A kind of novel brushless motor |
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