CN109412285A - A kind of non-brush permanent-magnet DC motor stator structure - Google Patents
A kind of non-brush permanent-magnet DC motor stator structure Download PDFInfo
- Publication number
- CN109412285A CN109412285A CN201811413924.9A CN201811413924A CN109412285A CN 109412285 A CN109412285 A CN 109412285A CN 201811413924 A CN201811413924 A CN 201811413924A CN 109412285 A CN109412285 A CN 109412285A
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- Prior art keywords
- stator
- tooth
- magnet
- motor
- assembly
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- 210000000515 tooth Anatomy 0.000 claims abstract description 28
- 230000007704 transition Effects 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims 2
- 210000003781 tooth socket Anatomy 0.000 abstract description 8
- 238000004804 winding Methods 0.000 abstract description 7
- 238000009826 distribution Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 210000004210 tooth component Anatomy 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- 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
- H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
-
- 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
-
- 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 present invention provides a kind of non-brush permanent-magnet DC motor stator structure, including stator core, stator core includes stator tooth assembly (1) and stator yoke assembly (2), stator tooth assembly (1) includes several stator tooths (11) and forms magnetic bridge between two adjacent stator tooths (11), and gap slot (13) are arranged in magnetic bridge region；Rabbet joint type fixed connection structure is formed between stator tooth (11) and stator yoke assembly (2).The present invention can effectively reduce the tooth socket torque of motor stator, pass through the average thickness of adjusting magnetic bridge simultaneously, magnetic resistance is adjusted to adjust the leakage field of stator tooth assembly, make air-gap field distribution close to Sine distribution, reduces winding back emf harmonic component, keep motor operation more stable, significantly reduce motor operation noise, and stator tooth is separated with stator yoke can increase motor stator winding width of rebate, applied to the coiling of low pressure brshless DC motor thick line diameter, can reduce motor manufacturing technology cost.
Description
Technical field
The present invention relates to motor stator structure design fields, more particularly, to a kind of non-brush permanent-magnet DC motor stator knot
Structure.
Background technique
With the development of automobile industry, non-brush permanent-magnet DC motor is due to small in size, light-weight, the high-efficient, service life
The advantages that long, increasingly by the favor of automobile industry.
But existing non-brush permanent-magnet DC motor has the following disadvantages: in use
First, motor operation noise is larger.In traditional stator structure design, stator is set in order to improve electric efficiency
It is calculated as opening slot structure, to have ignored motor operation noise problem.Due to the presence of tooth socket torque in stator structure, and tooth socket
Torque is bigger, and torque pulsation is bigger, and the slot structure that is open is a kind of maximum stator structure design scheme of tooth socket torque, thus
The operation noise that will lead to non-brush permanent-magnet DC motor is larger.
Second, difficulty in process.It is silent by stator design to reduce tooth socket torque in traditional stator structure design
Slot structure, but will be highly difficult in technique coiling, it can only be using threading coiling, the requirement to equipment and technique and personnel is all
It is relatively high, and then process costs is caused to improve.
Summary of the invention
The technical problem to be solved by the present invention is in view of the problems of the existing technology, providing a kind of permanent-magnet DC brushless
Motor stator structure reduces motor operation noise, reduces process costs.
The technical problem to be solved in the present invention is realized using following technical scheme: a kind of non-brush permanent-magnet DC motor stator
Structure, including stator core, the stator core include stator tooth assembly and stator yoke assembly, the stator tooth assembly packet
It includes several stator tooths and forms magnetic bridge between two adjacent stator tooths, gap slot is set in magnetic bridge region；Described
Rabbet joint type fixed connection structure is formed between stator tooth and stator yoke assembly.
Preferably, the gap slot is that stamping parts goes material to be formed.
Preferably, the bottom thickness of the gap slot is set as 0.3mm-1mm.
Preferably, gap slot is respectively provided between two adjacent stator tooths, and notch grooved ring stator tooth component is uniformly distributed.
Preferably, the stator tooth is in I-structure, and one end is formed as root portion, the other end is formed as tooth ends, institute
Rabbet joint type fixed connection structure is formed between the tooth ends stated and stator yoke assembly.
Preferably, the root portion is formed as frustum structure.
Preferably, arc transition is formed in the tooth ends.
Preferably, positive stop lug boss is formed in the tooth ends, is formed and positive stop lug boss phase on the stator yoke assembly
Matched card slot forms clamping structure between the card slot and positive stop lug boss.
Preferably, interference fit connection structure is formed between the stator tooth and stator yoke assembly.
Preferably, anti-rotation boss is set on the outer ring of the stator yoke assembly.
Compared with prior art, the beneficial effects of the present invention are: by being formed between two adjacent stator tooths every magnetic
Bridge and gap slot is set in magnetic bridge region, stator tooth component can be made to form closed slot structure, it is fixed to effectively reduce motor
The tooth socket torque of son, while the average thickness by adjusting magnetic bridge adjust magnetic resistance to adjust the leakage field of stator tooth assembly, make gas
Gap Distribution of Magnetic Field reduces winding back emf harmonic component close to Sine distribution, keeps motor operation more stable, greatly drops
Low motor operation noise, and stator tooth is separated with stator yoke can increase motor stator winding width of rebate, be applied to low pressure without
The coiling of brushless motor thick line diameter, can reduce motor manufacturing technology cost, enable the reliability of motor operation effectively
It improves.
Detailed description of the invention
Fig. 1 is a kind of assembly diagram of non-brush permanent-magnet DC motor stator structure of the present invention.
Fig. 2 is the schematic perspective view of the stator core in Fig. 1.
Fig. 3 is the top view of the stator core in Fig. 1.
Component token name claims in figure: 1- stator tooth assembly, 2- stator yoke assembly, 3- enameled wire, 4- insulation framework, and 11- is fixed
Sub- tooth, 12- positive stop lug boss, 13- gap slot, 14- root portion, 15- tooth ends, 16- arc transition, 21- anti-rotation boss.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawing and specific implementation
The present invention is described in detail for example.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, not
For limiting the present invention.
Non-brush permanent-magnet DC motor stator structure as shown in Figure 1, Figure 2, Figure 3 shows mainly includes stator core, enameled wire 3
With insulation framework 4, the stator core includes stator tooth assembly 1 and stator yoke assembly 2, and the stator tooth assembly 1 includes
Several stator tooths 11, the insulation framework 4 are fixedly connected on stator tooth 11, around making enameled wire 3 on stator tooth 11
Afterwards, then by hot-mounting process it is fixedly connected with stator tooth assembly 1 integrally with stator yoke assembly 2.In general, be make stator tooth 11 with
Rabbet joint type fixed connection structure is formed between stator yoke assembly 2；Preferably, shape between the stator tooth 11 and stator yoke assembly 2
At interference fit connection structure, so as to achieve the effect that a mould two goes out, reduce the mold expense of a set of stator core, a side
Face can reduce the manufacturing cost of motor entirety, on the other hand, add gluing fit system with traditional clearance fit compared with, can
So that the functional reliability of motor is higher, because motor is at work, stator tooth assembly 1 will receive tangential force, with stator yoke
There are the risks of relative rotary motion between component 2.In addition, due to forming separation between stator tooth assembly 1, stator yoke assembly 2
Formula structure, major diameter coil winding needed for being also convenient for low-voltage, high-current motor.
Magnetic bridge is formed between two adjacent stator tooths 11, gap slot 13 is arranged in the magnetic bridge region.In general, institute
The stator tooth assembly 1 and stator yoke assembly 2 stated form separate structure, can open between the stator tooth 11 of stator tooth assembly 1
If removing material magnet isolation tank, i.e., the described gap slot 13 can be stamping parts and material gone to be formed.The bottom thickness B of the gap slot 13 is set as
0.3mm-1mm, preferably 0.5mm.It is designed using this structure, stator tooth component 1 can be made to form closed slot structure, and closed
Mouth slot structure can efficiently reduce the tooth socket torque of motor stator, it might even be possible to motor stator be made to keep tooth socket torque minimum.It is logical
The average thickness that setting gap slot 13 adjusts magnetic bridge is crossed, magnetic resistance is adjusted to adjust the leakage field of stator tooth assembly, makes air-gap field
Distribution reduces winding back emf harmonic component, keeps motor operation more stable, significantly reduce electricity close to Sine distribution
Machine runs noise, and stator tooth is separated with stator yoke can increase motor stator winding width of rebate, applied to low pressure brushless direct-current
The coiling of motor thick line diameter, can reduce motor manufacturing technology cost, be conducive to the reliability for improving motor operation.In general,
Gap slot 13 is respectively provided between two adjacent stator tooths 11, and 13 ring stator tooth assembly 1 of gap slot is uniformly distributed, such as Fig. 3 institute
Show.
For the ease of the coiling and fixation of enameled wire 3, as shown in Figure 2 and Figure 3, stator tooth 11 can be designed to I shape knot
Structure, one end is formed as root portion 14, the other end is formed as tooth ends 15, wherein the root portion 14 is formed as frustum knot
Structure forms arc transition 16 in the tooth ends 15, and correspondingly, setting matches with tooth ends 15 on stator yoke assembly 2
The profiling card slot of conjunction, so that tooth ends 15 can form rabbet joint type fixed connection structure between stator yoke assembly 2.Using this
On the one hand the design of kind of structure can preferably fix enameled wire 3, and then the consistency of the every slot enameled wire 3 of raising, on the one hand can be with
So that stator coil is easy to implement automation coiling, advantageously reduces motor production cost.
As shown in Figure 2 and Figure 3, positive stop lug boss 12 can be formed in the tooth ends 15, on the stator yoke assembly 2
The card slot to match with positive stop lug boss 12 is formed, forms clamping structure between the card slot and positive stop lug boss 12.In addition, fixed
Anti-rotation boss 21 can be set on the outer ring of sub- yoke assembly 2.By setting positive stop lug boss 12, anti-rotation boss 21 come be used for coil around
It formulates position and is assembled with casing and positioned, not only reduce technique assembly difficulty, and reduce assembly time, productive temp is about
3S to 5S can be lowered.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, it is noted that all
Made any modifications, equivalent replacements, and improvements etc. within the spirit and principles in the present invention should be included in guarantor of the invention
Within the scope of shield.
Claims (10)
1. a kind of non-brush permanent-magnet DC motor stator structure, including stator core, it is characterised in that: the stator core includes
Stator tooth assembly (1) and stator yoke assembly (2), the stator tooth assembly (1) include several stator tooths (11) and adjacent
Magnetic bridge is formed between two stator tooths (11), gap slot (13) are set in magnetic bridge region；The stator tooth (11) and fixed
Rabbet joint type fixed connection structure is formed between sub- yoke assembly (2).
2. non-brush permanent-magnet DC motor stator structure according to claim 1, it is characterised in that: the gap slot (13) is
Stamping parts goes material to be formed.
3. non-brush permanent-magnet DC motor stator structure according to claim 1, it is characterised in that: the gap slot (13)
Bottom thickness is set as 0.3mm-1mm.
4. non-brush permanent-magnet DC motor stator structure according to claim 1-3, it is characterised in that: adjacent two
It is respectively provided with gap slot (13) between a stator tooth (11), and gap slot (13) ring stator tooth assembly (1) is uniformly distributed.
5. non-brush permanent-magnet DC motor stator structure according to claim 1-3, it is characterised in that: described determines
Sub- tooth (11) is in I-structure, and one end is formed as root portion (14), the other end is formed as tooth ends (15), the tooth ends
(15) rabbet joint type fixed connection structure is formed between stator yoke assembly (2).
6. non-brush permanent-magnet DC motor stator structure according to claim 5, it is characterised in that: the root portion (14)
Be formed as frustum structure.
7. non-brush permanent-magnet DC motor stator structure according to claim 5, it is characterised in that: the tooth ends (15)
Upper formation arc transition (16).
8. non-brush permanent-magnet DC motor stator structure according to claim 5, it is characterised in that: the tooth ends (15)
Upper formation positive stop lug boss (12) forms the card slot to match with positive stop lug boss (12) on the stator yoke assembly (2), described
Clamping structure is formed between card slot and positive stop lug boss (12).
9. non-brush permanent-magnet DC motor stator structure according to claim 1-3, it is characterised in that: described determines
Interference fit connection structure is formed between sub- tooth (11) and stator yoke assembly (2).
10. non-brush permanent-magnet DC motor stator structure according to claim 9, it is characterised in that: the stator yoke assembly
(2) anti-rotation boss (21) are set on outer ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811413924.9A CN109412285A (en) | 2018-11-26 | 2018-11-26 | A kind of non-brush permanent-magnet DC motor stator structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811413924.9A CN109412285A (en) | 2018-11-26 | 2018-11-26 | A kind of non-brush permanent-magnet DC motor stator structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109412285A true CN109412285A (en) | 2019-03-01 |
Family
ID=65455444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811413924.9A Pending CN109412285A (en) | 2018-11-26 | 2018-11-26 | A kind of non-brush permanent-magnet DC motor stator structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109412285A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110797993A (en) * | 2019-11-28 | 2020-02-14 | 华北电力大学（保定） | Stator yoke segmented block type motor |
| CN113193669A (en) * | 2021-04-30 | 2021-07-30 | 深圳市唯川科技有限公司 | Stator assembly and inner rotor motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201118400Y (en) * | 2007-10-31 | 2008-09-17 | 林小平 | A stator iron core for single-phase asynchronous electromotor |
| CN102064654A (en) * | 2010-12-16 | 2011-05-18 | 张家港市江南利玛特设备制造有限公司 | Exterior rotor permanent magnet brushless direct current (DC) fan motor for air-conditioning system for ship |
| CN102255460A (en) * | 2011-06-20 | 2011-11-23 | 上海电机学院 | Permanent magnet synchronous machine (PMSM) possessing assembled magnetic effect |
| CN204156618U (en) * | 2014-08-28 | 2015-02-11 | 捷和电机制品(深圳)有限公司 | Brushless electric machine |
| CN206195482U (en) * | 2016-11-09 | 2017-05-24 | 南京康尼电子科技有限公司 | Split type permanent magnet brushless DC motor stator |
| CN107425624A (en) * | 2017-08-28 | 2017-12-01 | 广东美芝制冷设备有限公司 | Motor stator, motor and compressor |
| CN207251325U (en) * | 2017-09-25 | 2018-04-17 | 苏州瑞诺盟新能源电机有限公司 | A kind of 9 groove centralization winding brushless direct current permanent magnet motor of 6 pole |
| CN108539946A (en) * | 2017-03-03 | 2018-09-14 | 山东中瑞电子股份有限公司 | The manufacturing method of fractional-slot concentratred winding permanent magnetic brushless and its stator |
| CN209104909U (en) * | 2018-11-26 | 2019-07-12 | 成都富临精工电子电器科技有限公司 | A kind of non-brush permanent-magnet DC motor stator structure |
-
2018
- 2018-11-26 CN CN201811413924.9A patent/CN109412285A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201118400Y (en) * | 2007-10-31 | 2008-09-17 | 林小平 | A stator iron core for single-phase asynchronous electromotor |
| CN102064654A (en) * | 2010-12-16 | 2011-05-18 | 张家港市江南利玛特设备制造有限公司 | Exterior rotor permanent magnet brushless direct current (DC) fan motor for air-conditioning system for ship |
| CN102255460A (en) * | 2011-06-20 | 2011-11-23 | 上海电机学院 | Permanent magnet synchronous machine (PMSM) possessing assembled magnetic effect |
| CN204156618U (en) * | 2014-08-28 | 2015-02-11 | 捷和电机制品(深圳)有限公司 | Brushless electric machine |
| CN206195482U (en) * | 2016-11-09 | 2017-05-24 | 南京康尼电子科技有限公司 | Split type permanent magnet brushless DC motor stator |
| CN108539946A (en) * | 2017-03-03 | 2018-09-14 | 山东中瑞电子股份有限公司 | The manufacturing method of fractional-slot concentratred winding permanent magnetic brushless and its stator |
| CN107425624A (en) * | 2017-08-28 | 2017-12-01 | 广东美芝制冷设备有限公司 | Motor stator, motor and compressor |
| CN207251325U (en) * | 2017-09-25 | 2018-04-17 | 苏州瑞诺盟新能源电机有限公司 | A kind of 9 groove centralization winding brushless direct current permanent magnet motor of 6 pole |
| CN209104909U (en) * | 2018-11-26 | 2019-07-12 | 成都富临精工电子电器科技有限公司 | A kind of non-brush permanent-magnet DC motor stator structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110797993A (en) * | 2019-11-28 | 2020-02-14 | 华北电力大学（保定） | Stator yoke segmented block type motor |
| CN113193669A (en) * | 2021-04-30 | 2021-07-30 | 深圳市唯川科技有限公司 | Stator assembly and inner rotor motor |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20230925 Address after: 621000 No. 27, longhui Road, Guangfu village, Wujia Town, Fucheng District, Mianyang City, Sichuan Province Applicant after: Sichuan Xinzhi Thermal Control Technology Co.,Ltd. Address before: 621000 No. 37, Fenghuang Middle Road, high end manufacturing industrial park, Mianyang City, Sichuan Province Applicant before: Fulin Precision Co.,Ltd. Effective date of registration: 20230925 Address after: 621000 No. 37, Fenghuang Middle Road, high end manufacturing industrial park, Mianyang City, Sichuan Province Applicant after: Fulin Precision Co.,Ltd. Address before: No. 888, Section 2, Chenglong Avenue, Longquanyi District, Chengdu City, Sichuan Province, 610101, China Applicant before: CHENGDU FULIN P.M. ELECTRONIC & ELECTRICAL TECHNOLOGY Co.,Ltd. |
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