CN107800258A - A kind of highly efficient permanent magnet brushless motor - Google Patents
A kind of highly efficient permanent magnet brushless motor Download PDFInfo
- Publication number
- CN107800258A CN107800258A CN201610790035.9A CN201610790035A CN107800258A CN 107800258 A CN107800258 A CN 107800258A CN 201610790035 A CN201610790035 A CN 201610790035A CN 107800258 A CN107800258 A CN 107800258A
- Authority
- CN
- China
- Prior art keywords
- rotor
- stator
- hole
- motor
- punching
- 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
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Classifications
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- 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
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
- H02K1/165—Shape, form or location of the slots
-
- 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
- H02K1/24—Rotor cores with salient poles ; Variable reluctance rotors
-
- 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
- H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses a kind of highly efficient permanent magnet brushless motor, including motor housing, rotor and stator, described rotor is formed by stacking by rotor punching, described stator is formed by stacking by stator punching, described rotor punching is disposed with axis hole from inside to outside, heat emission hole, rotor mounting hole and lobe 8, the spacing between lobe are 24.5mm, and the center of lobe is also provided with circular groove, the a diameter of 1.5mm of circular groove, described stator punching encloses from inside to outside is disposed with rotor hole, winding slot and stator mounting hole, and described stator punching also includes Hall plate mounting groove.Optimize the armature diameter of motor and the groove profile of motor, using Stator notching and optimization rotor pole arc coefficient and width of rebate, stator cramp groove by it is original it is horizontal be changed to it is vertical, reduce the influence of multipair motor magnetic circuit to the full extent again, changing stator slot shoulder shape makes motor stator punching mould more robust.It is designed go out motor it is more efficient compared to original motor, temperature rise is lower, noise and torque ripple are minimum.
Description
Technical field
The present invention relates to field of motor manufacturing, more particularly to a kind of highly efficient permanent magnet brushless motor.
Background technology
The electric vehicle motor of early application largely all uses permanent magnetic brushless, and concentratred winding is carried out using fractional-slot,
Fractional-slot concentratred winding is more mainly for solving motor number of pole-pairs, the contradiction between number of slots is few, while reduces torque pulsation,
Make electric car traveling as far as possible steady.But fractional-slot concentratred winding vortex damage magnet damage is bigger, is not suitable for weak magnetic control, fractional-slot
Though concentratred winding can be reduced " slot effect ", to sacrifice the part efficiency of motor as cost, while Distributed Winding permanent magnetism
Brushless electric machine, stator end copper cash span is larger, and coil DC impedance is big, line loss increase, and copper material wastes serious, present country number
Call " energy-saving and emission-reduction, energy-efficient " together, so efficiency high must be developed, the big highly efficient permanent magnet brushless motor of moment of torsion.
The content of the invention
Goal of the invention：In order to overcome the deficiencies in the prior art, the invention provides a kind of efficiency high, moment of torsion is big,
Electric current is low, and temperature rise is low, and noise is low, and stability is high, and manufacturing process is simple, the low highly efficient permanent magnet brushless motor of cost.
Technical scheme：To achieve the above object, the present invention adopts the following technical scheme that：
A kind of highly efficient permanent magnet brushless motor, including motor housing, rotor and stator, described rotor are superimposed by rotor punching
Form, described stator is formed by stacking by stator punching, and described rotor punching is disposed with axis hole from inside to outside, radiating
Hole, rotor mounting hole and lobe 8, the spacing between lobe are 24.5mm, and the center of lobe is also provided with circular groove, and circular groove is a diameter of
1.5mm, described stator punching encloses from inside to outside is disposed with rotor hole, winding slot and stator mounting hole, described stator
Punching also includes Hall plate mounting groove.
Further, inwardly protruded spacer block is additionally provided with described axis hole.
Further, described heat emission hole is sector structure, and heat emission hole is rounded evenly distributed around axis hole, quantity 4
It is individual.
Further, described rotor mounting hole is circle, is staggered with heat emission hole, quantity is 4.
Further, described winding slot is trapezoidal shape, and shorter one side sets opening, and winding slot is in around rotor hole
Circular arrangement, quantity are 12.
Further, described Hall plate mounting groove quantity is 3, is arranged on three adjacent winding slots, Hall
Piece installation channel opening is trapezoid-shaped openings, A/F 3mm.
Beneficial effect：The invention provides a kind of highly efficient permanent magnet brushless motor, the armature diameter and motor of motor are optimized
Groove profile, using Stator notching and optimization rotor pole arc coefficient and width of rebate, stator cramp groove horizontal is changed to by original
Vertical, then reduce the influence of multipair motor magnetic circuit to the full extent, changing stator slot shoulder shape makes motor stator punching mould
It is more robust, it is designed go out motor it is more efficient compared to original motor, temperature rise is lower, noise and torque ripple are minimum.
Brief description of the drawings
Accompanying drawing 1 is rotor punching structure schematic diagram of the present invention；
Accompanying drawing 2 is stator laminating structure schematic diagram of the present invention.
Wherein：1. axis hole, 2. heat emission holes, 3. rotor mounting holes, 4. lobes, 5. circular grooves, 6. spacer blocks, 7. rotor holes, 8. around
Wire casing opening, 9. winding slots, 10. stator mounting holes, 11. Hall plate mounting grooves.
Embodiment
The present invention is further described with reference to the accompanying drawings and examples.
Embodiment：
A kind of highly efficient permanent magnet brushless motor, including motor housing, rotor and stator, described rotor are superimposed by rotor punching
Form, a diameter of 78mm of rotor punching, described stator is formed by stacking by stator punching, stator punching a diameter of 120mm, described
Rotor punching be disposed with axis hole 1 from inside to outside, shaft hole diameter 15mm, heat emission hole 2, rotor mounting hole 3 and lobe 4 count
Measure as 8, the spacing between lobe 4 is 24.5mm, and the center of lobe 4 is also provided with circular groove 5, circular groove 5 a diameter of 1.5mm, described
Stator punching enclose be disposed with rotor hole 7 from inside to outside, a diameter of 79mm of rotor hole, winding slot 9 and stator mounting hole 10,
Described stator punching also includes Hall plate mounting groove 11, the armature diameter of motor and the groove profile of motor is optimized, using crown
Fluting and optimization rotor pole arc coefficient and width of rebate, at utmost reduce the influence of multipair motor magnetic circuit, in described axis hole
Inwardly protruded spacer block 6, spacer block width 4mm are additionally provided with, described heat emission hole is sector structure, and heat emission hole is in around axis hole
Circular evenly distributed, arrangement diameter of a circle is 52mm, and radiating hole number is 4, and described rotor mounting hole is circle, a diameter of
2.5mm, it is staggered with heat emission hole, quantity is 4, and described winding slot is trapezoidal shape, and shorter one side sets opening 8,
Winding slot surrounds the rounded arrangement of rotor hole, and quantity is 12, and described Hall plate mounting groove quantity is 3, is arranged on adjacent
Three winding slots on, Hall plate installation channel opening is trapezoid-shaped openings, A/F 3mm.
Motor specific experiment effect after improvement is as follows：As can be seen that highly efficient permanent magnet brushless motor proposed by the present invention,
Efficiency high, electric current is low, and moment of torsion is big, has obvious advantage.
Described above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (6)
1. a kind of highly efficient permanent magnet brushless motor, including motor housing, rotor and stator, described rotor be superimposed by rotor punching and
Into described stator is formed by stacking by stator punching, it is characterised in that：Described rotor punching is disposed with axle from inside to outside
Hole, heat emission hole, rotor mounting hole and lobe 8, the spacing between lobe are 24.5mm, and the center of lobe is also provided with circular groove, circle
The a diameter of 1.5mm of groove, described stator punching encloses from inside to outside is disposed with rotor hole, winding slot and stator mounting hole, institute
The stator punching stated also includes Hall plate mounting groove.
2. highly efficient permanent magnet brushless motor according to claim 1, it is characterised in that：It is additionally provided with described axis hole inwardly
Raised spacer block.
3. highly efficient permanent magnet brushless motor according to claim 1, it is characterised in that：Described heat emission hole is sector structure,
Heat emission hole is rounded evenly distributed around axis hole, and quantity is 4.
4. highly efficient permanent magnet brushless motor according to claim 1, it is characterised in that：Described rotor mounting hole is circle,
It is staggered with heat emission hole, quantity is 4.
5. highly efficient permanent magnet brushless motor according to claim 1, it is characterised in that：Described winding slot is trapezoidal shape,
Shorter one side sets opening, and winding slot surrounds the rounded arrangement of rotor hole, and quantity is 12.
6. highly efficient permanent magnet brushless motor according to claim 1, it is characterised in that：Described Hall plate mounting groove quantity is
3, it is arranged on three adjacent winding slots, Hall plate installation channel opening is trapezoid-shaped openings, A/F 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610790035.9A CN107800258A (en) | 2016-08-31 | 2016-08-31 | A kind of highly efficient permanent magnet brushless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610790035.9A CN107800258A (en) | 2016-08-31 | 2016-08-31 | A kind of highly efficient permanent magnet brushless motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107800258A true CN107800258A (en) | 2018-03-13 |
Family
ID=61528626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610790035.9A Pending CN107800258A (en) | 2016-08-31 | 2016-08-31 | A kind of highly efficient permanent magnet brushless motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107800258A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109245341A (en) * | 2018-06-29 | 2019-01-18 | 台州创普机电有限公司 | DC brushless motor |
-
2016
- 2016-08-31 CN CN201610790035.9A patent/CN107800258A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109245341A (en) * | 2018-06-29 | 2019-01-18 | 台州创普机电有限公司 | DC brushless motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180313 |