CN208158251U - There is brush permanent magnet micromotor - Google Patents
There is brush permanent magnet micromotor Download PDFInfo
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- CN208158251U CN208158251U CN201820694738.6U CN201820694738U CN208158251U CN 208158251 U CN208158251 U CN 208158251U CN 201820694738 U CN201820694738 U CN 201820694738U CN 208158251 U CN208158251 U CN 208158251U
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- brush
- stator support
- permanent magnet
- motor shaft
- commutator
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Abstract
This application discloses one kind brush permanent magnet micromotor, stator support and lower stator support design thereon for split, and recessed portion split of stator support and lower stator support forms complete for installing the installation cavity of motor shaft, iron core winding, bearing and commutator on this.During installation, first iron core winding, bearing and commutator are mounted on motor shaft, mover assembly is formed, is then installed to mover assembly in the recessed portion of lower stator support, finally the upper stator support of brush will be put well in brush installation position respectively and lower stator support carries out split and fixes.This structure makes motor assembly simple, can fast implement assembly.Moreover, two bearings are fixed or are pressed in the same part, it is ensured that their concentricitys and concentricity, also without the compressing of center angular force when assembly, there is no insertion casing problem, assembly is simple.
Description
Technical field
This application involves a kind of electric machine structure, especially a kind of structure for having brush permanent magnet micromotor.
Background technique
It is common to be generally made of magnetic conductive metal casing, rotor, rear end cap brush permanent magnet micromotor.Wherein casing is embedded with
Bearing and permanent magnet, casing section are that round or isocentric circular arc adds parallel symmetry line combination oblate；Wherein rotor by axis, iron core and
Coiling group, commutator composition, rear end cap are embedded with bearing and two panels brush group.Brush is generally elastic brush or elastic conducting strip is embedding
Graphite block is fixed on intercalation and enters on the conducting bracket of rear end cap.
Casing and the embedding bearing of rear end cap generally use oiliness bearing, are metallic sintered products, when tight fit is embedded in casing, meeting
Internal Hole Deformation is caused to shrink.When the armature spindle of this micro machine is packed into bearing of rear end cover, because the spacing of two panels brush is less than commutation
Device outer diameter will first push two panels brush aside, unclamp after loading, and brush flexible deformation is pressed on commutator；Then by rotor with after
End cap assembly is quickly packed into casing, the front loaded casing bearing of armature spindle.Last casing and rear end cap are fixed.Casing and rear end
Lid wants tight fit insertion bearing, rear end cap to want the technique that push brush when tight fit intercalation brush and installation aside, influences to assemble
Efficiency also increases assembly cost.
Again because two bearings are on being located at rear end cap and casing, their concentricity and concentricity is generally had partially
Difference, rotation can be obstructed after assembly, therefore can beat vibrating motor, make bearing bore deformation, and rotation is smooth, and it is not easy to control to beat vibration.
So assembly, motor consistency are difficult to ensure that noise is big, and the service life is also impacted.Moreover, this motor is during installation, work as rotor
When being inserted into casing, because rotor core is influenced by the suction of permanent magnet, two bearings all can by the compressing of center angular force,
The bearing that axis is quickly aligned on casing is more difficult, it is also very low to lead to assembly efficiency, while also be easy to causeing bearing
Damage.
Summary of the invention
The application provide it is a kind of it is novel have brush permanent magnet micromotor, the assembly efficiency to improve micro machine is consistent with structure
Property.
According to the one side of the application, the application provide one kind have brush permanent magnet micromotor in, including：
Mover assembly comprising motor shaft and the iron core winding, commutator and the bearing that are mounted on motor shaft, the axis
Holding is two, is located at the two sides of iron core winding；
Stator module comprising go up stator support, lower stator support and be mounted on stator support and lower stator support
On permanent magnet, magnetic conductive part and brush；The upper stator support and lower stator support all have and motor shaft, iron core winding, axis
It holds and the matched recessed portion of the half of commutator and the brush installation position for installing brush, the upper stator support and lower fixed
Submounts are set as using the plane for crossing motor shaft centre line as interface, the recessed portion of the upper stator support and lower stator support
Split forms complete for installing the installation cavity of motor shaft, iron core winding, bearing and commutator, the mover assembly installation
In the installation cavity；
The permanent magnet is mounted on stator support and lower stator support, to generate magnetic field；
The magnetic conductive part is separately mounted on stator support and lower stator support, symmetrical above and below, is correspondingly formed closure and is led
Magnet frame, to conduct magnetic field；
The brush is mounted on brush installation position, and is contacted with the commutator of mover assembly.
As the further improvement for having brush permanent magnet micromotor, the upper stator support and lower stator support are respectively provided with
Brush compresses position, and the brush, which compresses position and is used to match with the brush installation position of other side, merges compression brush, the brush packet
Power up brush and lower brush are included, the power up brush is mounted on the brush installation position of stator support, and the lower brush is mounted on down
On the brush installation position of stator support, the power up brush and lower brush are stretched out to the placement position of commutator respectively, so that upper stator
When bracket and lower stator support split, the power up brush and lower brush can abut the two sides outer wall of commutator respectively.
As the further improvement for having brush permanent magnet micromotor, the brush installation position is provided at least one convex
It rises, the power up brush and lower brush have location hole corresponding with positioning protrusion, and the power up brush and lower brush are separately mounted to
On corresponding positioning protrusion；The brush compresses position and is provided with pit corresponding with the positioning protrusion of brush installation position.
As the further improvement for having brush permanent magnet micromotor, the positioning protrusion is one, and the convex
Act the width center line setting for the corresponding brush that is staggered；Or
The positioning protrusion is two or more, and the positioning protrusion is in non-right relative to the width center line of corresponding brush
Claim setting.
As the further improvement for having brush permanent magnet micromotor, the brush installation position is sunk structure, the compression
Brush position is bulge-structure, the bulge-structure and sunk structure with the corresponding brush of merging compression.
As the further improvement for having brush permanent magnet micromotor, the permanent magnet, brush, brush installation position and compression electricity
Position is brushed with the distribution in a center of symmetry of motor shaft centre line.
As the further improvement for having brush permanent magnet micromotor, the upper stator support and lower stator support are respectively adopted
Material injection molding can be molded.
As the further improvement for having brush permanent magnet micromotor, the permanent magnet is even number, wherein the permanent magnetism of half
Body is arranged on upper stator support, the other half permanent magnet is arranged on lower stator support；The magnetic conductive part includes upper magnetic conductive tile
With lower magnetic conductive tile, the upper magnetic conductive tile is covered on the outside of stator support and corresponding permanent magnet, the lower magnetic conductive tile covering
In the outside of lower stator support and corresponding permanent magnet, the upper magnetic conductive tile and lower magnetic conductive tile dock to form closure magnetic conduction frame.
It is described to have brush permanent magnet micromotor for oscillating motor as the further improvement for having brush permanent magnet micromotor, it is described
Elastic slice is fixed on motor shaft, the elastic slice other end is fixed on stator support or lower stator support.
The beneficial effect of the application is：
The be shown with brush permanent magnet micromotor of the application, stator support and lower stator support design thereon for split, and on this
Stator support and lower stator support are respectively provided with the matched recess of half with motor shaft, iron core winding, bearing and commutator
Portion, recessed portion split of stator support and lower stator support forms complete for installing motor shaft, iron core winding, bearing on this
And the installation cavity of commutator.This structure makes this micro machine in assembly, and iron core and commutator are first mounted on motor shaft
On, then coiling line winding, and winding outlet is welded on commutator, then two bearings that are slidably installed are to motor shaft
On, form mover assembly；Permanent magnet and magnetic conductive part are separately mounted on upper stator support and lower stator support, then respectively will be electric
Brush is placed on the brush installation position of stator support Yu lower stator support, and mover assembly is then installed to the recessed of lower stator support
In concave portion, it is fixed that upper stator support and lower stator support are finally subjected to split.This structure makes motor installation simple,
It is embedded in and dials there is no the insertion of bearing tight fit, brush tight fit and swipe work, assembly can be fast implemented.Moreover, two axis
It holds and is fixed or is pressed in the same part, it is ensured that their concentricitys and concentricity are also biased to when assembly without center
The compressing of power, there is no casing problem is inserted in, assembly is simple.
Further, in some embodiments, stator support and lower stator support are respectively provided with brush and compress position, the electricity on this
Brush, which compresses position and is used to match with the brush installation position of other side, merges compression brush.The brush is mounted on brush installation position, and
Position is compressed by brush to fix.The brush is stretched out to the placement position of commutator, so that upper stator support and lower stator support split
When, power up brush and lower brush can abut the two sides outer wall of commutator respectively, be installed during installation without pushing brush aside, pole
The earth improves assembly efficiency.
Still further, in some embodiments, on this stator support and lower stator support respectively with motor application electric appliance
Shell is combined together, and is formed an entirety with casing for electric appliances, can be reduced installation steps of the motor in electric appliance, and assembly effect is improved
Rate.
Detailed description of the invention
Fig. 1 is the appearance diagram for having brush permanent magnet micromotor in the first embodiment of the application；
Fig. 2 is the exploded view for having brush permanent magnet micromotor in the first embodiment of the application；
Fig. 3 is the structural schematic diagram of lower stationary part in the first embodiment of the application
Fig. 4 is the schematic diagram that mover assembly is installed to lower stationary part in the first embodiment of the application；
Fig. 5 is the appearance diagram for having brush permanent magnet micromotor in second of embodiment of the application；
Fig. 6 is the exploded view for having brush permanent magnet micromotor in second of embodiment of the application；
Fig. 7 is the structural schematic diagram of lower stationary part in second of embodiment of the application
Fig. 8 is the schematic diagram that mover assembly is installed to lower stationary part in second of embodiment of the application.
Specific embodiment
Below by specific embodiment combination attached drawing, invention is further described in detail.The application can be with a variety of
Different forms is realized, however it is not limited to embodiment described in the present embodiment.The purpose of following specific embodiments is provided
It is easy for becoming apparent from present disclosure thorough explanation, wherein the words of the indicating positions such as upper and lower, left and right is only needle
To shown structure in respective figure for position.
However, those skilled in the art may be aware that one or more detail description can be by
Omit, or can also adopt with other methods, component or material.In some instances, some embodiments are not described
Or it is not described later in detail.
In addition, technical characteristic described herein, technical solution can also be in one or more embodiments arbitrarily to close
Suitable mode combines.For those skilled in the art, it should be readily appreciated that method related with embodiment provided herein
Step or operation order can also change.Therefore, any sequence in drawings and examples is merely illustrative purposes, not secretly
Show requirement in a certain order, is required unless expressly stated according to a certain sequence.
Embodiment one：
The present embodiment provides one kind brush permanent magnet micromotor.
Fig. 1-4 is please referred to, it includes mover assembly 100, upper stator support 210, lower stator support that this, which has brush permanent magnet micromotor,
220, permanent magnet 300, magnetic conductive part 400 and brush 500.
The mover assembly 100 includes motor shaft 110 and the iron core winding 120, the bearing 130 that are mounted on motor shaft 110
With commutator 140.The iron core winding 120 includes iron core and coiling.Bearing 130 is two, is located at iron core winding 120
Two sides are slidably installed on motor shaft, for forming support to motor shaft 110 and iron core winding 120.The commutator 140
For being flexibly connected with the holding of brush 500, to pass to electric energy.The commutator 140 is usually located at one end of motor shaft 110, with
Convenient for being contacted with brush 500.
Stator support 210, lower stator support 220, permanent magnet 300, magnetic conductive part 400 and brush 500 form stator on this
Component.On this stator support 210 and lower stator support 220 all have with motor shaft 110, iron core winding 120, bearing 130 and
The matched recessed portion of the half of commutator 140 (illustrates only the recessed portion 221 that lower stator support 220 has) in figure, i.e., upper fixed
Submounts 210 and lower stator support 220 are respectively provided with recessed portion, the shape of the recessed portion and motor shaft 110, iron core winding 120,
The half of bearing 130 and commutator 140 matches, this, which matches, not only can be same shape, is also possible to compare
The half of these components bigger size and structure, in order to accommodate or fix these components.Finally, upper stator support
210 and lower stator support 220 recessed portion split after can be formed it is complete for installing motor shaft 110, iron core winding 120, axis
Hold the installation cavity of 130 and commutator 140.The motor shaft 110, iron core winding 120, bearing 130 and commutator 140 are accommodated in
In the installation cavity, middle (center) bearing 130 is fixed in the installation cavity.The mover assembly 100 has the support of bearing 130, motor shaft
110, iron core winding 120 and commutator 140 can rotate under magnetic fields.
Stator support 210 and lower stator support 220 are mounted on permanent magnet 300 on this, which drives to generate
The magnetic field that dynamic mover assembly 100 rotates.The magnetic conductive part 400 is mounted on stator support 210 and lower stator support 220, docking
Closure magnetic conduction frame is formed, to conduct magnetic field；
The brush 500 fixed setting, be capable of fixing and be mounted on stator support 210 and lower stator support 220, and with change
It is contacted to device 140, transmits electric energy in 140 rotation process of commutator.
Iron core and commutator 140 during installation, are first mounted on motor shaft 110 by the be shown with brush permanent magnet micromotor of the present embodiment
On, then the winding of coiling line forms iron core winding 120 on iron core, and winding outlet is welded on commutator 140, then is slided
It is dynamic to be coupled on two bearings 130 to motor shaft 110, form mover assembly 100.And upper stator support 210 and lower stator branch
Frame 220 can install permanent magnet 300, magnetizer 400 and brush 500 respectively.Then it is lower fixed mover assembly 100 to be installed to
In the recessed portion of submounts 220, it is fixed that upper stator support 210 is finally subjected to split with lower stator support 220.This knot
Structure makes motor installation simple, can fast implement assembly.
Two bearings 130 are fixed or are pressed in the same part, it is ensured that their concentricitys and concentricity, assembly
When also without the compressing of center angular force, there is no insertion casing problem, assembly is simple.
Stator support 210 can be nested by groove boss reciprocal correspondence with lower stator support 220 on this, or utilizes clamping
Or upper stator support 210 and lower stator support 220 are fixed together with fastener, to complete the assembly of motor.
Fig. 2 and 4 are please referred to, stator support 210 and lower stator support 220 are set as to cross 110 center line of motor shaft on this
Plane be interface, and permanent magnet 300, brush 500, brush installation position, compress brush position with motor shaft centre line at center
It is symmetrical.After installing stator module, 130 alignment bearings of bearing on the rotor assembly place position, and rotor assembly is placed
It is installed on lower stator support 220 on lower stator module, then by upper stator support 210 correspondence, corresponding bearing places position
Naturally it has been fixed bearing 130.
Further, Fig. 2-4 is please referred to, in a kind of embodiment, which includes power up brush 510 and lower brush 520.
The power up brush 510 is mounted on stator support 210, and lower brush 520 is mounted on lower stator support 220.510 He of power up brush
Lower brush 520 is stretched out to the placement position of commutator 140 respectively, so that when upper stator support 210 and lower 220 split of stator support,
Power up brush 510 and lower brush 520 can abut the two sides outer wall of commutator 140 respectively.This mode installs commutator 140 and electricity
It when brushing 500, does not need first to push two panels brush 500 aside, since lower brush 520 has been mounted on the commutation of lower stator support 220 in advance
Device 140 is placed at position, therefore, can be directly by commutator 140 on the recessed portion 221 of lower stator support 220, commutator
140 are pressed in naturally on lower brush 520.Upper stator support 210 correspondence is installed on lower stator support 220 again, powering on above
Brush 510 is pressed in naturally on the another side of commutator 140, completes electrical connection.
Please continue to refer to Fig. 2-4, in a kind of embodiment, upper stator support 210 and lower stator support 220 are respectively provided with brush
Installation position 222 and compression brush position 224.At least one positioning protrusion is provided in the brush installation position 222 (to merely illustrate in figure
The positioning protrusion 223 of lower stator support 220), the power up brush 510 and lower brush 520 have location hole corresponding with positioning protrusion,
It is separately mounted on corresponding positioning protrusion.The positioning protrusion avoids it from moving during installation for positioning to brush 500
Position.Pit 225 corresponding with the positioning protrusion in brush installation position 222 is provided in the compression brush position 224.A kind of embodiment
In, Fig. 3 and 4 are please referred to, the structure of lower 220 side positioning protrusion 223 of stator support, upper stator branch are illustrated only in the Fig. 3 and 4
The structure of 210 side positioning protrusion of frame and lower stator support 220 are consistent.The positioning protrusion 223 is more than two, and the positioning
Protrusion 223 is in asymmetric setting relative to the width center line of corresponding brush 500.The width center line referred to 500 width side of brush
To the straight line at midpoint, which refers to the relatively narrow direction (left and right directions as shown in Figure 2) as shown in Figure 2 of lower brush 520.
The brush 500 of the asymmetric setting can play the role of it is anti-mounted, if will be electric by rotation center of its middle line by lower brush 520
500 180 ° of rotation of brush, can not be installed on positioning protrusion 223 when brush 500 at this time.
Certainly, in other embodiments, which can be one, and the positioning protrusion is staggered corresponding brush
500 width center line setting, so can also equally play the role of anti-mounted.
In a kind of embodiment, which is sunk structure.Stator support 210 and lower stator support 220 on this
It is respectively provided with the compression brush position 224 cooperated for the brush installation position 222 with other side, mutually should be bulge-structure.It please join
Fig. 2-4 is examined, bulge-structure 224 and sunk structure 222 on lower stator support 220, stator support 210 on this are illustrated only in figure
On bulge-structure and sunk structure it is identical as lower stator support 220.The bulge-structure and sunk structure are corresponded to compression is merged
Brush 500.This mode had not only been assembled simply, but also stable can fix brush 500.
The brush 500 is placed in sunk structure, and when assembly is compressed naturally by the bulge-structure of the other half stator module, no
With intercalation brush 500, without brush is dialled, brush 500 will not be deformed, and installation is simple.
In a kind of embodiment, plastic material injection molding is respectively adopted in stator support 210 and lower stator support 220 on this.
Upper stator support 210 and 220 fixing bearing 130 of lower stator support made of plastics will not be made because plastics have certain elasticity
At the deformation and contraction of bearing 130.And then noise is reduced naturally, the service life extends.Upper stator support 210 and lower stator support simultaneously
220 are formed with plastic injection, it is ensured that the consistency of installation.
Further, in a kind of embodiment, stator support 210 and lower stator support 220 are electric with motor application respectively on this
The shell of device is combined together, and is formed an entirety with casing for electric appliances, can be reduced installation steps of the motor in electric appliance, improves electricity
The assembly efficiency and reduction cost of device.
Further, in a kind of embodiment, which is even number, and wherein the permanent magnet 300 of half is arranged upper
On stator support 210, the other half permanent magnet 300 is arranged on lower stator support 220.Referring to FIG. 2, the permanent magnet 300 is adopted
It is respectively two-by-two one group with four, one group of permanent magnet 300 is mounted on stator support 210, and another group of permanent magnet 300 is pacified
On lower stator support 220, four permanent magnets are distributed in upper stator support 210 and lower fixed with motor shaft centre line central symmetry
On submounts 220, the corresponding permanent magnet magnetic polarity of central symmetry is opposite.The permanent magnet 300 and upper stator support 210 and lower fixed
Submounts 220 can be fixed by way of bonding or tight fit.
Referring to FIG. 2, the magnetic conductive part 400 includes upper magnetic conductive tile and lower magnetic conductive tile, magnetic conductive tile is covered on stator branch on this
The outside of frame 210 and corresponding permanent magnet 300, the lower magnetic conductive tile are covered on lower stator support 220 and corresponding permanent magnet 300
Outside, docking form the magnetic conduction frame of closure.
In this embodiment, stator support 210 and permanent magnet 300 mounted thereto, magnetic conductive part 400 and power up brush on this
510 form upper stator module, 520 shape of lower stator support 220 and permanent magnet 300 mounted thereto, magnetic conductive part 400 and lower brush
At lower stator module.The binding site and permanent magnet 300 of stator module and lower stator module, brush 500, magnetic conductive part on this
400 respectively to 110 center line central symmetry of motor shaft.
In some other structure, which is also possible to spell in upper stator support 210 and lower stator support 220
After conjunction, then it is installed to stator support 210 and the mosaic of lower stator support 220 forms fixation.
Further, in a kind of embodiment, by the arrangement of the permanent magnet 300 to multiple and different magnetism, can make motor at
For rotating electric machine or oscillating motor.
When having brush permanent magnet micromotor is oscillating motor, referring to FIG. 4, being fixed on motor shaft 110 in a kind of embodiment
Elastic slice 150,150 other end of elastic slice are fixed on lower stator support 220 (or upper stator support 210).
Please continue to refer to Fig. 1-4, in the present embodiment, stator support 210 and lower stator support 220 form one and cut on this
The generally hexagonal flat sheet casing in face.Permanent magnet 300 uses four, and is distributed in upper stator branch in such a way that on two two is lower
Frame 210 and lower stator support 220.
Embodiment two：
Present embodiments providing another kind has brush permanent magnet micromotor.
Fig. 5-8 is please referred to, similarly, it includes mover assembly 100 that this, which has brush permanent magnet micromotor, upper stator support 210, lower fixed
Submounts 220, permanent magnet 300, magnetic conductive part 400 and brush 500.
The mover assembly 100 includes motor shaft 110 and the iron core winding 120, the bearing 130 that are mounted on motor shaft 110
With commutator 140.The iron core winding 120 includes iron core and coiling.Bearing 130 is two, is located at iron core winding 120
Two sides are slidably installed on motor shaft, for forming support to motor shaft 110 and iron core winding 120.The commutator 140
For being flexibly connected with the holding of brush 500, to pass to electric energy.The commutator 140 is usually located at one end of motor shaft 110, with
Convenient for being contacted with brush 500.
Stator support 210, lower stator support 220, permanent magnet 300, magnetic conductive part 400 and brush 500 form stator on this
Component.On this stator support 210 and lower stator support 220 all have with motor shaft 110, iron core winding 120, bearing 130 and
The matched recessed portion of the half of commutator 140 (illustrates only the recessed portion 221 that lower stator support 220 has) in figure, i.e., upper fixed
Submounts 210 and lower stator support 220 are respectively provided with recessed portion, the shape of the recessed portion and motor shaft 110, iron core winding 120,
The half of bearing 130 and commutator 140 matches, this, which matches, not only can be same shape, is also possible to compare
The half of these components bigger size and structure, in order to accommodate or fix these components.Finally, upper stator support
210 and lower stator support 220 recessed portion split after can be formed it is complete for installing motor shaft 110, iron core winding 120, axis
Hold the installation cavity of 130 and commutator 140.The motor shaft 110, iron core winding 120, bearing 130 and commutator 140 are accommodated in
In the installation cavity, middle (center) bearing 130 is fixed in the installation cavity.The mover assembly 100 has the support of bearing 130, motor shaft
110, iron core winding 120 and commutator 140 can rotate under magnetic fields.
Include in place of the be shown with brush permanent magnet micromotor of the present embodiment and the difference of embodiment one：
Stator support 210 on this, the brush installation position on lower stator support 220 positioning protrusion can be for one (in figure
Illustrate only the positioning protrusion 223 on lower stator support 220), and the positioning protrusion is staggered the width center line of corresponding brush 500
Setting, anti-mounted so as to play the role of, corresponding brush 500 has location hole corresponding with positioning protrusion.
Meanwhile stator support 210 and lower stator support 220 form the shell of a class cylinder on this.Permanent magnet 300 is adopted
With two, and in a manner of one on the other, central symmetry is distributed on upper stator support 210 and lower stator support 220, is corresponded to
Permanent magnet magnetic polarity it is opposite.
The above content is specific embodiment is combined, further detailed description of the invention, and it cannot be said that this hair
Bright specific implementation is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, it is not taking off
Under the premise of from present inventive concept, a number of simple deductions or replacements can also be made.
Claims (9)
1. one kind has brush permanent magnet micromotor, which is characterized in that including：
Mover assembly comprising motor shaft and the iron core winding, commutator and the bearing that are mounted on motor shaft, the bearing are
Two, it is located at the two sides of iron core winding；
Stator module comprising go up stator support, lower stator support and be mounted on stator support and lower stator support
Permanent magnet, magnetic conductive part and brush；The upper stator support and lower stator support all have with motor shaft, iron core winding, bearing with
And the matched recessed portion of half and brush installation position for installing brush, the upper stator support and lower stator branch of commutator
Frame is set as the recessed portion split of the upper stator support and lower stator support using the plane for crossing motor shaft centre line as interface
It is formed completely for installing the installation cavity of motor shaft, iron core winding, bearing and commutator, the mover assembly is mounted on institute
It states in installation cavity；
The permanent magnet is mounted on stator support and lower stator support, to generate magnetic field；
The magnetic conductive part is separately mounted on stator support and lower stator support, symmetrical above and below, is correspondingly formed closure magnetic conduction frame,
To conduct magnetic field；
The brush is mounted on brush installation position, and is contacted with the commutator of mover assembly.
2. there is brush permanent magnet micromotor as described in claim 1, which is characterized in that the upper stator support and lower stator support point
Not Ju You brush compress position, the brush compresses position and is used to carry out with the brush installation position of other side with merging compression brush, described
Brush includes power up brush and lower brush, and the power up brush is mounted on the brush installation position of stator support, the lower brush peace
On the brush installation position of lower stator support, the power up brush and lower brush are stretched out to the placement position of commutator respectively, so that
When upper stator support and lower stator support split, the power up brush and lower brush can abut the two sides outer wall of commutator respectively.
3. there is brush permanent magnet micromotor as claimed in claim 2, which is characterized in that the brush installation position is provided at least one
Positioning protrusion, the power up brush and lower brush have location hole corresponding with positioning protrusion, the power up brush and lower brush difference
It is mounted on corresponding positioning protrusion；The brush compresses position and is provided with pit corresponding with the positioning protrusion of brush installation position.
4. there is brush permanent magnet micromotor as claimed in claim 3, which is characterized in that the positioning protrusion is one, and described
Positioning protrusion be staggered corresponding brush width center line setting；Or
The positioning protrusion is two or more, and the positioning protrusion is set relative to the width center line of corresponding brush in asymmetric
It sets.
5. there is brush permanent magnet micromotor as claimed in claim 3, which is characterized in that the brush installation position is sunk structure, institute
Stating and compressing brush position is bulge-structure, the bulge-structure and sunk structure with the corresponding brush of merging compression.
6. having a brush permanent magnet micromotor as claimed in claim 5, which is characterized in that the permanent magnet, brush, brush installation position and
Brush position is compressed with the distribution in a center of symmetry of motor shaft centre line.
7. there is brush permanent magnet micromotor as claimed in claim 6, which is characterized in that the upper stator support and lower stator support point
Use can not be molded material injection molding.
8. there is brush permanent magnet micromotor as claimed in claim 7, which is characterized in that the permanent magnet is even number, wherein half
Permanent magnet be arranged on upper stator support, the other half permanent magnet is arranged on lower stator support；The magnetic conductive part includes upper
Magnetic conductive tile and lower magnetic conductive tile, the upper magnetic conductive tile are covered on the outside of stator support and corresponding permanent magnet, the lower magnetic conduction
It watt is covered on the outside of lower stator support and corresponding permanent magnet, the upper magnetic conductive tile and lower magnetic conductive tile dock to form closure magnetic conduction
Frame.
9. there is brush permanent magnet micromotor as described in claim 1, which is characterized in that described to have brush permanent magnet micromotor to swing electricity
Machine is fixed with elastic slice on the motor shaft, and the elastic slice other end is fixed on stator support or lower stator support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820694738.6U CN208158251U (en) | 2018-05-10 | 2018-05-10 | There is brush permanent magnet micromotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820694738.6U CN208158251U (en) | 2018-05-10 | 2018-05-10 | There is brush permanent magnet micromotor |
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| Publication Number | Publication Date |
|---|---|
| CN208158251U true CN208158251U (en) | 2018-11-27 |
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ID=64390430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820694738.6U Withdrawn - After Issue CN208158251U (en) | 2018-05-10 | 2018-05-10 | There is brush permanent magnet micromotor |
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| Country | Link |
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| CN (1) | CN208158251U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108616175A (en) * | 2018-05-10 | 2018-10-02 | 胡建坤 | There are brush permanent magnet micromotor and its assembly method |
-
2018
- 2018-05-10 CN CN201820694738.6U patent/CN208158251U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108616175A (en) * | 2018-05-10 | 2018-10-02 | 胡建坤 | There are brush permanent magnet micromotor and its assembly method |
| CN108616175B (en) * | 2018-05-10 | 2020-04-14 | 胡建坤 | Brush permanent magnet micromotor and assembling method thereof |
| US11329523B2 (en) | 2018-05-10 | 2022-05-10 | Jiankun Hu | Permanent magnet brush micromotor and assembly method thereof |
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Granted publication date: 20181127 Effective date of abandoning: 20200414 |