CN108768031A - Magnet fixing device and motor with the magnet fixing device - Google Patents
Magnet fixing device and motor with the magnet fixing device Download PDFInfo
- Publication number
- CN108768031A CN108768031A CN201810916917.4A CN201810916917A CN108768031A CN 108768031 A CN108768031 A CN 108768031A CN 201810916917 A CN201810916917 A CN 201810916917A CN 108768031 A CN108768031 A CN 108768031A
- Authority
- CN
- China
- Prior art keywords
- magnet
- fixing device
- motor
- magnet fixing
- rear end
- 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
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
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor 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
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2786—Outer rotors
Abstract
The invention discloses a kind of magnet fixing devices comprising has a cylinder shell, the cylinder shell to be an integral structure, nylon material is selected to be made, the rectangular channel of multiple perforation barrels is offered on the cylinder shell barrel.Compared with prior art, the present invention passes through the rectangular channel fixed magnet that is arranged on cylinder shell barrel, it can prevent magnet from falling off, to improve the reliability of product, and the cylinder shell of the present invention is an integral structure, it selects nonmetallic nylon material injection molding, can avoid magnet leakage field, and it is easy to process, cost is relatively low.
Description
Technical field
The present invention relates to technical field of motors, relates more specifically to a kind of magnet fixing device and fix dress with the magnet
The motor set.
Background technology
Brshless DC motor is the direct current generator that electronic commutation is realized using semiconductor switch device, that is, uses electronic switch
Device replace traditional contact commutator and brush so that its with no mechanicalness noise, long lifespan, can high speed rotation, precision
The advantages that high and easy to control.And brshless DC motor is that a kind of armature inside motor is fixed, and boundary's magnetic rotation of permanent magnet
The motor turned, permanent magnet is the main magnetic property source of current high power density brshless DC motor, once the magnetic in motor
Iron falls off, and motor is entirely ineffective immediately, therefore the assembly reliability of magnet determines the working performance of brushless motor, however traditional
Brshless DC motor in magnet be to be pasted magnet on motor case inner wall by adhesive, because of the heat resistance of adhesive
It is poor, and heat is will produce when brushless motor work, if the brushless motor is used for a long time, possible brushless motor is slightly rushed
Hitting can all cause magnet to fall off, so that motor failure.
In consideration of it, it is necessary to provide a kind of magnet fixing device for preventing magnet from falling off and there is the magnet fixing device
Motor to solve drawbacks described above.
Invention content
Technical problem to be solved by the invention is to provide a kind of magnet fixing devices for preventing magnet from falling off.
Another technical problem to be solved by this invention, which is to provide, a kind of prevents what magnet from falling off there is magnet to fix dress
The motor set.
In order to solve the above technical problems, according to an aspect of the present invention, providing a kind of magnet fixing device comprising have one
Cylinder shell, the cylinder shell are an integral structure, and are selected nylon material to be made, are opened on the cylinder shell barrel
Rectangular channel equipped with multiple perforation barrels.
Its further technical solution is：Multiple rectangular channels are uniformly distributed.
Its further technical solution is：The quantity of the rectangular channel is 14.
In order to solve the above technical problems, according to another aspect of the present invention, providing a kind of motor comprising have rotor set
Part, magnet fixing device and stator module, the magnet fixing device are above-mentioned magnet fixing device, and the rotor assembly includes
It includes magnet identical with rectangular channel quantity to have wheel hub and magnet assemblies, the magnet assemblies, and each magnet is fixed on one
In the rectangular channel, the magnet fixing device is set on the wheel hub inner peripheral surface, and the stator module is contained in the magnet
On fixing device inner peripheral surface.
Its further technical solution is：A non-inflatable tyre is installed on the hub periphery face.
Its further technical solution is：The motor further includes having a rear end cap, and the rear end cap includes one cylinder
Top surface and being faced out from the top surface rear end vertically extend the cylinder ring come, the top surface is covered on the rear end of the wheel hub
On face.
Its further technical solution is：The rear end cap further include have one formed from the top edge outward bending
One annulus.
Its further technical solution is：The rear end cap further includes the round platform to extend out from front end of the top surface face, the circle
A chamber resettling is offered in platform.
Its further technical solution is：The stator module includes stator core, bearing and shaft core, the stator core
It is set on magnet fixing device inner peripheral surface, multiple equally distributed stator salient poles is formed on the stator core peripheral surface, often
Coil is wound in a stator salient poles, the shaft core sequentially passes through rear end cap, bearing and stator core, and the bearing is solid
Due in the shaft core and in the chamber resettling.
Compared with prior art, the present invention can be prevented by the rectangular channel fixed magnet being arranged on cylinder shell barrel
Magnet falls off, and to improve the reliability of product, and the cylinder shell of the present invention is an integral structure, and selects nonmetallic Buddhist nun
The molding of imperial material injection, can avoid magnet leakage field, and it is easy to process, cost is relatively low.
Description of the drawings
Fig. 1 is the structural schematic diagram for one specific embodiment of motor that the present invention has magnet fixing device.
Fig. 2 be motor shown in Fig. 1 A-A to sectional view.
Fig. 3 is the dimensional structure diagram of magnet fixing device in the present invention.
Fig. 4 is the concrete structure schematic diagram of stator module in the present invention.
Specific implementation mode
To make those skilled in the art that the object, technical solutions and advantages of the present invention be more clearly understood, with
Under the application is further elaborated in conjunction with the accompanying drawings and embodiments.
Fig. 1 to Fig. 4 illustrates the specific embodiment that the present invention has the motor 10 of magnet fixing device 100.Referring to Fig.1
To Fig. 4, magnet fixing device 100 is shown to become apparent from, the top surface 401 of rear end cap is not shown in Fig. 1 motors 10.The electricity of the present invention
Machine 10 includes rotor assembly, magnet fixing device 100 and stator module 300.Wherein, the magnet fixing device 100 includes
There are a cylinder shell 101, the cylinder shell 101 to be an integral structure, nonmetallic nylon material is selected to be molded into
Type offers the rectangular channels 102 of multiple perforation barrels on 101 barrel of cylinder shell, and the rectangular channel 102 is for solid
Fixed magnet 2021, multiple rectangular channels 102 are uniformly distributed, it is preferable that in the present embodiment, 101 barrel of the cylinder shell
On open up 14 rectangular channels 102, and in some other embodiments, the quantity of the rectangular channel 102 can be according to the practical need of client
It asks and is adjusted.The rotor assembly includes wheel hub 201 and magnet assemblies, and the magnet assemblies include and rectangular channel
The identical magnet 2021 of 102 quantity, each magnet 2021 is fixed in a rectangular channel 102, and the magnet 2021 and square
The mounting means of shape slot 102 is installed for tight fit, and the magnet fixing device 100 is set on 201 inner peripheral surface of the wheel hub, described
Stator module 300 is contained on 100 inner peripheral surface of the magnet fixing device, in some other embodiments, outside the wheel hub 201
One non-inflatable tyre can be installed on circumferential surface.Based on above-mentioned design, the present invention passes through the rectangle that is arranged on 101 barrel of cylinder shell
102 fixed magnet 2021 of slot, magnet 2021 and the mounting means of rectangular channel 102 are installed for tight fit, and magnet 2021 can be prevented de-
It falls, and magnet fixing device 100 is set on 201 inner peripheral surface of the wheel hub, even if then using 10 magnet 2021 of motor for a long time
It will not fall off from rectangular channel 102, position will not change, and the reliability of motor 10, and the cylindrical shell of the present invention can be improved
Body 101 is an integral structure, and selects nonmetallic nylon material injection molding, can avoid 2021 leakage field of magnet, and is easy to add
Work, cost are relatively low.
With reference to Fig. 2, it is the structures such as clearer display magnet fixing device 100 and rear end cap, determines in Fig. 2 diagrammatic cross-sections
Stator core 303 in sub-component 300 is not shown.In certain embodiments, the motor 10 further includes having a rear end cap, described
Rear end cap includes a cylinder top surface 401, faces out the cylinder ring 402 vertically extended from 401 rear end of top surface, certainly
401 edge outward bending the first annulus 403 formed of the top surface and the round platform 404 to extend out from 401 front end face of top surface,
A chamber resettling 4041 is offered in the round platform 404,403 edge of the first annulus is connected to the rear end of the wheel hub 201
On face.
In certain embodiments, the stator module 300 includes stator core 303, bearing 302 and shaft core 301, described
Stator core 303 is set on 100 inner peripheral surface of magnet fixing device, is formed on 303 peripheral surface of stator core multiple uniform
The stator salient poles 304 of distribution are each wound with coil 305 in the stator salient poles 304, and the shaft core 301 sequentially passes through rear end
Lid, bearing 302 and stator core 303, the bearing 302 are fixed in the shaft core 301 and are located at the chamber resettling 4041
It is interior, it will be appreciated that ground, in the present embodiment, the shaft core 301 sequentially passed through when running through rear end cap the rear end cap cylinder ring 402,
Top surface 401 and round platform 404.Preferably, in the present embodiment, the mounting means of the bearing 302 and shaft core 301 is also that tight fit is pacified
Dress.When a current is applied, stator core 303 is magnetized, because magnet 2021 is located on 201 inner peripheral surface of wheel hub, and the magnet
2021 be permanent magnet, therefore by the gravitation and repulsion between the stator core 303 in stator module 300 and magnet 2021, is turned
Sub-component can be rotated.
In conclusion the present invention can prevent magnet de- by the rectangular channel fixed magnet being arranged on cylinder shell barrel
It falls, to improve the reliability of product, and the cylinder shell of the present invention is an integral structure, and selects nonmetallic nylon material
Injection molding, can avoid magnet leakage field, and it is easy to process, cost is relatively low.
The foregoing is merely the preferred embodiment of the present invention, rather than do limitation in any form to the application.This field
Technical staff can impose various equivalent changes and improvement, all institutes within the scope of the claims on the basis of the above embodiments
The equivalent variations done or modification should all be fallen within the scope of the present application.
Claims (9)
1. a kind of magnet fixing device, it is characterised in that：The magnet fixing device includes a cylinder shell, the cylinder
Shape shell is an integral structure, and nylon material is selected to be made, and multiple perforation cylinders are offered on the cylinder shell barrel
The rectangular channel of wall.
2. magnet fixing device as described in claim 1, it is characterised in that：Multiple rectangular channels are uniformly distributed.
3. magnet fixing device as described in claim 1, it is characterised in that：The quantity of the rectangular channel is 14.
4. a kind of motor, it is characterised in that：The motor includes rotor assembly, magnet fixing device and stator module, described
Magnet fixing device is the claims 1-3 any one of them magnet fixing devices, and the rotor assembly includes wheel hub
And magnet assemblies, the magnet assemblies include magnet identical with rectangular channel quantity, each magnet is fixed on a square
In shape slot, the magnet fixing device is set on the wheel hub inner peripheral surface, and the stator module is contained in the magnet and fixes dress
It sets on inner peripheral surface.
5. motor as claimed in claim 4, it is characterised in that：A non-inflatable tyre is installed on the hub periphery face.
6. motor as claimed in claim 4, it is characterised in that：The motor further includes having a rear end cap, the rear end cap packet
It includes a cylinder top surface and faces out the cylinder ring for vertically extending and from the top surface rear end, the top surface is covered on institute
It states on the rear end face of wheel hub.
7. motor as claimed in claim 6, it is characterised in that：The rear end cap further include have it is one outside from the top edge
The first annulus being bent to form.
8. motor as claimed in claim 6, it is characterised in that：The rear end cap further includes extending out from front end of the top surface face
Round platform offers a chamber resettling in the round platform.
9. motor as claimed in claim 8, it is characterised in that：The stator module includes stator core, bearing and shaft core,
The stator core is set on magnet fixing device inner peripheral surface, is formed on the stator core peripheral surface multiple equally distributed
Stator salient poles are each wound with coil in the stator salient poles, and the shaft core sequentially passes through rear end cap, bearing and stator iron
Core, the bearing are fixed in the shaft core and in the chamber resettling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810916917.4A CN108768031A (en) | 2018-08-13 | 2018-08-13 | Magnet fixing device and motor with the magnet fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810916917.4A CN108768031A (en) | 2018-08-13 | 2018-08-13 | Magnet fixing device and motor with the magnet fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108768031A true CN108768031A (en) | 2018-11-06 |
Family
ID=63969849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810916917.4A Pending CN108768031A (en) | 2018-08-13 | 2018-08-13 | Magnet fixing device and motor with the magnet fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108768031A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000083345A (en) * | 1998-09-04 | 2000-03-21 | Matsushita Electric Ind Co Ltd | Brushless motor |
| JP2002235691A (en) * | 2001-02-09 | 2002-08-23 | Tsurumi Mfg Co Ltd | Pump device |
| JP2006109595A (en) * | 2004-10-04 | 2006-04-20 | Japan Servo Co Ltd | Rotor balance correction structure of outer rotor type motor |
| JP2006238661A (en) * | 2005-02-28 | 2006-09-07 | Shinano Kenshi Co Ltd | Dc brushless motor |
| CN101127457A (en) * | 2006-08-18 | 2008-02-20 | 千藏工业株式会社 | DC brushless electromotor |
| JP2009278838A (en) * | 2008-05-19 | 2009-11-26 | Meidensha Corp | Outer rotor type permanent magnet type motor |
| CN102085799A (en) * | 2011-01-05 | 2011-06-08 | 吉林大学 | Wheel motion assembly of city electric vehicle |
| JP2012044795A (en) * | 2010-08-20 | 2012-03-01 | Jtekt Corp | Electric motor, and rotor |
| JP2012244808A (en) * | 2011-05-20 | 2012-12-10 | Honda Motor Co Ltd | Rotor for rotary electric machine |
| CN102957241A (en) * | 2011-08-16 | 2013-03-06 | Lg伊诺特有限公司 | Rotor core of motor |
| KR20140033995A (en) * | 2012-09-11 | 2014-03-19 | 동양기전 주식회사 | Brushless motor apparatus |
| CN205647221U (en) * | 2016-05-20 | 2016-10-12 | 深圳市万至达电机制造有限公司 | Direct current permanent magnetism does not have groove brushless motor |
| CN208862651U (en) * | 2018-08-13 | 2019-05-14 | 东昌电机(深圳)有限公司 | Magnet fixing device and motor with the magnet fixing device |
-
2018
- 2018-08-13 CN CN201810916917.4A patent/CN108768031A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000083345A (en) * | 1998-09-04 | 2000-03-21 | Matsushita Electric Ind Co Ltd | Brushless motor |
| JP2002235691A (en) * | 2001-02-09 | 2002-08-23 | Tsurumi Mfg Co Ltd | Pump device |
| JP2006109595A (en) * | 2004-10-04 | 2006-04-20 | Japan Servo Co Ltd | Rotor balance correction structure of outer rotor type motor |
| JP2006238661A (en) * | 2005-02-28 | 2006-09-07 | Shinano Kenshi Co Ltd | Dc brushless motor |
| CN101127457A (en) * | 2006-08-18 | 2008-02-20 | 千藏工业株式会社 | DC brushless electromotor |
| JP2009278838A (en) * | 2008-05-19 | 2009-11-26 | Meidensha Corp | Outer rotor type permanent magnet type motor |
| JP2012044795A (en) * | 2010-08-20 | 2012-03-01 | Jtekt Corp | Electric motor, and rotor |
| CN102085799A (en) * | 2011-01-05 | 2011-06-08 | 吉林大学 | Wheel motion assembly of city electric vehicle |
| JP2012244808A (en) * | 2011-05-20 | 2012-12-10 | Honda Motor Co Ltd | Rotor for rotary electric machine |
| CN102957241A (en) * | 2011-08-16 | 2013-03-06 | Lg伊诺特有限公司 | Rotor core of motor |
| KR20140033995A (en) * | 2012-09-11 | 2014-03-19 | 동양기전 주식회사 | Brushless motor apparatus |
| CN205647221U (en) * | 2016-05-20 | 2016-10-12 | 深圳市万至达电机制造有限公司 | Direct current permanent magnetism does not have groove brushless motor |
| CN208862651U (en) * | 2018-08-13 | 2019-05-14 | 东昌电机(深圳)有限公司 | Magnet fixing device and motor with the magnet fixing device |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20200217 Address after: 518000 Guangtian green decoration industrial base Park, building 2, No. 86 Xiangyang Road, Yanchuan community, Yanluo street, Bao'an District, Shenzhen City, Guangdong Province Applicant after: Dongxingchang Technology (Shenzhen) Co., Ltd Address before: 518000, Shenzhen, Guangdong, Baoan District manhole street, Whampoa community, hung Tian Road, hung Tian, Jin Yuan Industrial Zone, building D, A24 third Applicant before: DONGCHANG MOTOR (SHENZHEN) Co.,Ltd. |
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| TA01 | Transfer of patent application right |