CN108418380A - A kind of novel brushless motor - Google Patents
A kind of novel brushless motor Download PDFInfo
- Publication number
- CN108418380A CN108418380A CN201810373983.1A CN201810373983A CN108418380A CN 108418380 A CN108418380 A CN 108418380A CN 201810373983 A CN201810373983 A CN 201810373983A CN 108418380 A CN108418380 A CN 108418380A
- Authority
- CN
- China
- Prior art keywords
- rotor
- permanent magnet
- main shaft
- shell
- hall element
- 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.)
- Pending
Links
- 230000009467 reduction Effects 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
- H02K29/06—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices
- H02K29/08—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices using magnetic effect devices, e.g. Hall-plates, magneto-resistors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/04—Balancing means
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Abstract
The invention discloses a kind of novel brushless motor, including shell, the rear end cap of stator, rotor and the main shaft being installed on rotor being placed in shell, the main shaft and shell is connected by bearing；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, and the ratio of the outer diameter arc length of the corresponding rotor is 0.6634~0.72 to size and the second permanent magnet trough two-end-point of second permanent magnet on magnetic slot length direction between two lines of the rotor core line of centres respectively.The present invention passes through Hall element support, Hall element service life can be extended, 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 the permanent-magnet brushless DC electric machine that there is higher counter electromotive force, to have higher electromagnetic torque and electric efficiency under that loading condition.
Description
Technical field
The present invention relates to a kind of motors, especially brushless motor.
Background technology
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 be by change armature voltage come easily speed governing.And compared with separated exciting dc motor,
Have many advantages, such as that small, efficient, simple in structure, 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 camera, 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 relatively low, 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 can cause damage of the Hall without part,
Once and Hall element damage dismounting, replace get up it is extremely difficult, for motor repair and use affect.
Invention content
The technical problem to be solved by the present invention is to：One kind is provided and overcomes above-mentioned insufficient new-type brushless motor.
The solution that the present invention solves its technical problem is：A kind of novel brushless motor, including shell, are placed in shell
Stator, rotor and the main shaft being installed on rotor, the rear end cap of the main shaft and shell connected by bearing；The rear end cap
Outside be equipped with Hall element support；The lower part of the Hall element support is equipped with the magnet steel pallet with motor axis connection, described
Permanent magnet is equipped in magnet steel pallet, the opening of the rear end cap is connected with a cover；The rotor includes rotor core, described turn
Sub- iron core circumferentially offers the magnetic slot of V-arrangement, and the magnetic slot is equipped with the second permanent magnet, and second permanent magnet is in the magnetic slot
Size on length direction and the second permanent magnet trough two-end-point respectively with two lines of the rotor core line of centres it
Between the corresponding rotor outer diameter arc length ratio be 0.6634~0.72.
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 box connect, the reduction box include planetary gear speed reducing mechanism, and the planetary gear speed reducing mechanism includes sun gear, ring gear, is located at
Planetary gear on planet carrier and connection cover, 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
Barycenter block, the axle center of the cavity and the axis parallel of main shaft but misaligned.
The beneficial effects of the invention are as follows：The present invention can be extended Hall element service life, be kept away by Hall element support
Exempt from influence of the hot environment to Hall element signal, and dismounting repair conveniently is carried out to it, damage will not be generated to body, and
And the ratio by the way that permanent magnet width and corresponding rotor diameter arc length is arranged, to make the permanent-magnet brushless DC electric machine have
Higher counter electromotive force, to have higher electromagnetic torque and electric efficiency under that loading condition.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described.Obviously, described attached drawing is a part of the embodiment of the present invention, rather than is all implemented
Example, those skilled in the art without creative efforts, can also be obtained according to these attached drawings other designs
Scheme and attached drawing.
Fig. 1 is the structural schematic diagram of the present invention.
Specific implementation mode
The technique effect of the design of the present invention, concrete structure and generation is carried out below with reference to embodiment and attached drawing clear
Chu is fully described by, to be completely understood by the purpose of the present invention, feature and effect.Obviously, described embodiment is this hair
Bright a part of the embodiment, rather than whole embodiments, based on the embodiment of the present invention, those skilled in the art are not being paid
The other embodiment obtained under the premise of creative work, belongs to the scope of protection of the invention.In addition, be previously mentioned in text
All connection/connection relations not singly refer to component and directly connect, and refer to that can be added deduct according to specific implementation situation by adding
Few couple auxiliary, to form more preferably coupling structure.Each technical characteristic in the invention, in not conflicting conflict
Under the premise of can be with combination of interactions.
Referring to Fig.1, a kind of novel brushless motor, including shell 1, the stator being placed in shell 1, rotor and it 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 8 on main shaft 7 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 box, the reduction box include planetary gear speed reducing mechanism, and the planetary gear speed reducing mechanism includes sun gear, ring gear, is located at planet
Planetary gear on frame and connection cover, 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 box, the application range of brushless motor can be made broader, and the protecgulum 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 barycenter is filled in the cavity
Block, the axle center of the cavity and the axis parallel of main shaft but misaligned.By barycenter block aligning can be played to the rotation of rotor
Effect so that rotor when high-speed rotation, keep dynamic balancing.
The better embodiment of the present invention is illustrated above, but the invention is not limited to the implementation
Example, those skilled in the art can also make various equivalent modifications or be replaced under the premise of without prejudice to spirit of that invention
It changes, these equivalent modifications or replacement are all contained in the application claim limited range.
Claims (4)
1. a kind of novel brushless motor, it is characterised in that：Including shell, the stator that is placed in shell, rotor and it is installed on rotor
On main shaft, the rear end cap of the main shaft and shell connected by bearing；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, and permanent magnet, institute are equipped 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 box being connect with drive end bearing bracket, the reduction box 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
Filled with barycenter block, the axle center of the cavity and the axis parallel of main shaft but misaligned in cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810373983.1A CN108418380A (en) | 2018-04-24 | 2018-04-24 | A kind of novel brushless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810373983.1A CN108418380A (en) | 2018-04-24 | 2018-04-24 | A kind of novel brushless motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108418380A true CN108418380A (en) | 2018-08-17 |
Family
ID=63136517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810373983.1A Pending CN108418380A (en) | 2018-04-24 | 2018-04-24 | A kind of novel brushless motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108418380A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202231512U (en) * | 2011-08-25 | 2012-05-23 | 中山大洋电机制造有限公司 | Rotor component structure |
| CN102957291A (en) * | 2012-11-25 | 2013-03-06 | 徐州鸿利达机电有限公司 | Permanent magnet brushless direct current motor |
| CN103457409A (en) * | 2013-08-20 | 2013-12-18 | 淄博得普达电机有限公司 | Direct current brushless gear motor for electric vehicle |
| CN204928523U (en) * | 2015-08-05 | 2015-12-30 | 苏州宝时得电动工具有限公司 | Permanent -magnet brushless D.C electric machine |
| CN107465323A (en) * | 2017-09-13 | 2017-12-12 | 北京交通大学 | A kind of magneto cage-type rotor and magneto |
| CN206759272U (en) * | 2017-04-18 | 2017-12-15 | 胡超 | Permanent magnetic brushless rotor dynamic balancing means for correcting |
| CN208190489U (en) * | 2018-04-24 | 2018-12-04 | 深圳市精锐昌科技有限公司 | A kind of novel brushless motor |
-
2018
- 2018-04-24 CN CN201810373983.1A patent/CN108418380A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202231512U (en) * | 2011-08-25 | 2012-05-23 | 中山大洋电机制造有限公司 | Rotor component structure |
| CN102957291A (en) * | 2012-11-25 | 2013-03-06 | 徐州鸿利达机电有限公司 | Permanent magnet brushless direct current motor |
| CN103457409A (en) * | 2013-08-20 | 2013-12-18 | 淄博得普达电机有限公司 | Direct current brushless gear motor for electric vehicle |
| CN204928523U (en) * | 2015-08-05 | 2015-12-30 | 苏州宝时得电动工具有限公司 | Permanent -magnet brushless D.C electric machine |
| CN206759272U (en) * | 2017-04-18 | 2017-12-15 | 胡超 | Permanent magnetic brushless rotor dynamic balancing means for correcting |
| CN107465323A (en) * | 2017-09-13 | 2017-12-12 | 北京交通大学 | A kind of magneto cage-type rotor and magneto |
| CN208190489U (en) * | 2018-04-24 | 2018-12-04 | 深圳市精锐昌科技有限公司 | A kind of novel brushless motor |
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