CN209448184U - Brush assembly of electric and motor - Google Patents
Brush assembly of electric and motor Download PDFInfo
- Publication number
- CN209448184U CN209448184U CN201821672907.2U CN201821672907U CN209448184U CN 209448184 U CN209448184 U CN 209448184U CN 201821672907 U CN201821672907 U CN 201821672907U CN 209448184 U CN209448184 U CN 209448184U
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- brush
- electric
- support base
- accommodation groove
- brush assembly
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Abstract
The utility model discloses brush assembly of electric and motor.The brush assembly of electric comprising brush, shunt welding and force application part.The brush is curve shape along its length, and the one end of the brush along its length is used to touch with conductive member；Described shunt welding one end is electrically connected with the brush, and the other end with electrical component for being electrically connected；The brush is arranged in the force application part with applying active force, contacts the brush with conductive component；After the brush wear, the force application part keeps applying active force to the brush, and contacts the brush holding after abrasion with conductive component.Brush assembly of electric and motor in the utility model, since brush uses curve shape, in the identical situation of motor size, brush length increases, and the service life of motor is improved.
Description
Technical field
The utility model relates to brush assembly of electric and motors.
Background technique
Brush motor is common driving device.Brush motor applicating history is longer, technology relative maturity.There are commonly brushes
Electric machine structure finalizes the design almost, and to improve not a duck soup to it.But with increasing for application field, the structure of motor is constantly proposed
New requirement, such as the requirement of service life and availability.Important component of the brush assembly of electric as brush motor,
Service life is also related to the bulk life time of motor, the even deciding section of motor service life.Since brush was using
Cheng Zhonghui abrasion, therefore will lead to motor service life after brush wear consumption and terminate.In addition, some in motor use field
In, the size of motor is severely limited, therefore, the use of motor how is improved in the case where not improving motor overall dimensions
One of the main problem that service life and motor field need to face.A kind of brush assembly of electric 200 as shown in Figure 1, using torsional spring
The brush 201 of the 210 211 pairs of rectilinear forms that twist leg applies elastic force, and elastic force makes 201 right end of brush keep connecing with conductive component
Touching.Even if right end is constantly worn, torsional spring 210 remains to contact brush 201 with conductive component.With brush
201 right ends are constantly worn, and 211 active force of twisting leg makes brush 201 direct route to the right is advanced in the horizontal direction.Make when initially
Used time, angle α is bigger, twist leg 211 directed force F and 201 travelling route of brush angle β it is bigger, then act on brush 201
Active force is smaller, therefore the directed force F of torsional spring 210 keeps brush 201 lower along the efficiency of straight line to the right.With 210 right end of brush
It is constantly worn in use process, angle α is to be gradually reduced.Until the elastic acting force of torsional spring 210 disappears, nothing when angle α is zero
Method drives brush 201 mobile again.Therefore, such brush assembly of electric or torsional spring 210 are arranged by left, make the initial of torsional spring 201
Active force when use is stronger, but angle α becomes zero after brush 210 is using one section, causes brush 210 remaining more.As turned round
Spring 211 is arranged close to 201 right end of brush, although brush 201 can be made to remain to apply active force to brush 201 when wearing more,
But since angle α is larger, directed force F can not be such that brush 201 and the conductive component on right side is in close contact along the component of straight line to the right,
Conductive effect is poor, or even is not available.The availability of such brush assembly of electric, brush only has 70% or so, there is 30% or so
Brush is not available, and is wasted more.
Utility model content
The purpose of this utility model first is that in order to overcome the shortcomings in the prior art, providing a kind of electricity with long service life
Brush assemblies.
In order to achieve the above object, being achieved through the following technical solutions:
Brush assembly of electric characterized by comprising
Brush, the brush are curve shape along its length, and the one end of the brush along its length is used for and conduction
Component is in contact；
Shunt welding, described shunt welding one end are electrically connected with the brush, and the other end with electrical component for being electrically connected；
The brush is arranged in force application part, the force application part with applying active force, makes the brush and conductive component
Contact；After the brush wear, the force application part keeps applying active force to the brush, and keeps the brush after abrasion
It is contacted with conductive component.
One embodiment according to the present utility model, the curve shape are circular shape or elliptic arc shape.
One embodiment according to the present utility model, the brush can be movably arranged along Curve Path.
One embodiment according to the present utility model, the Curve Path are identical as the curve shape of the brush.
One embodiment according to the present utility model further includes support base, and the brush is movably arranged at the branch
It supports on seat.
One embodiment according to the present utility model, the support base are provided with accommodation groove, and the accommodation groove is enclosed by cell wall
At；The brush is set in the accommodation groove and can movably be arranged in the accommodation groove.
One embodiment according to the present utility model, the shape of the accommodation groove along its length and the brush are along length
The shape in direction is identical.
One embodiment according to the present utility model further includes limit plate, the limit plate be set to the support base and/
Or on the cell wall of accommodation groove, and it is located at and the brush is limited in the accommodation groove above the brush and can be along the accommodating
Slot is mobile.
One embodiment according to the present utility model is provided with lubricant layer in the accommodation groove, and the lubricant layer is set to
Accommodate flute wall surfaces and with the brush contact.
One embodiment according to the present utility model, the force application part are elastomeric element, and the elastomeric element has bullet
Property power it is arranged, the resilient force of the elastomeric element is kept in contact the brush with conductive component in the brush.
One embodiment according to the present utility model, the force application part are used to act on the brush other end application
Power touches the brush and conductive member.
One embodiment according to the present utility model, the elastomeric element are torsional spring, and the torsional spring has annulus section, first
It twists leg and twists leg with second；Annulus section fixed setting, described first, which twists leg, supports on the securing means, described second twist leg to
Withstand on the brush other end.
One embodiment according to the present utility model, the annulus section are set to the center of circle side of the brush.
One embodiment according to the present utility model, the brush have upper surface, and the upper surface is provided with step, institute
Shunt welding one end is stated to be connected at the step.
One embodiment according to the present utility model, the brush are carbon brush.
One embodiment according to the present utility model, the central angle of the brush are 30 ° -180 °.
One embodiment according to the present utility model, further includes:
Support base, the support base are provided with accommodation groove, and the brush is movably arranged in the accommodation groove；It is described
Fixed column is provided on support base；
Torsional spring, the torsional spring twist leg with annulus section, first and twist leg with second；The annulus section is sleeved on the fixed column
On, described first, which twists leg, supports on the support base, and described second, which twists leg, supports in the brush other end.
Restraining position ring block is arranged in the fixed column for one embodiment according to the present utility model, and the stop collar is for hindering
The annulus section is kept off to be detached from from the fixed column.
Motor comprising:
Brush assembly of electric above-mentioned；
Stator coil, the shunt welding other end are electrically connected with the stator coil；
Rotor, the stator coil are set to the stator coil side and can be rotatably set, and described brush one end is supported
It withstands on the rotor.
One embodiment according to the present utility model, the motor further include magnetic links, and the magnetic links turn around described
Son setting；The stator coil is arranged through the magnetic links.
One embodiment according to the present utility model, the motor further include:
Support base, the support base are provided with accommodation groove, and the brush is movably arranged in the accommodation groove；It is described
Fixed column is provided on support base；The magnetic links are fixed on the support base；
Torsional spring, the torsional spring twist leg with annulus section, first and twist leg with second；The annulus section is sleeved on the fixed column
On, described first, which twists leg, supports on the support base, and described second, which twists leg, supports in the brush other end；
The coil and/or the magnetic links are located above the fixed column, stop the annulus section from the fixed column
Upper disengaging.
One embodiment according to the present utility model is set with restraining position ring block in the fixed column, and the stop collar is for limiting
It makes the annulus section to be detached from from the fixed column, the stop collar is located at the annulus section and the coil and/or the magnetic
Between steel disc.
The side of rotor radial is arranged in one embodiment according to the present utility model, the brush.
Brush assembly of electric and motor in the utility model are identical in motor size since brush uses curve shape
In the case where, brush length increases, and the service life of motor is improved.Brush uses circular arc or elliptic arc shape, torsional spring
The shape in the second elastic force direction and brush to twist leg coincide, and matched with the mobile route of brush, therefore even if annulus section
Being arranged on the right side can also make second to twist leg in initial use applies biggish active force to brush, can make always brush and lead
Electrical components are in close contact, and both may insure that conductive effect remained balanced, and increase the effective rate of utilization of brush.Using this
The brush assembly of electric and motor of utility model, in the case where motor overall dimensions are constant, the service life of motor improves 1.5 times,
The availability of brush is improved to 90% or so, and the utilization rate of former brush is improved 30% or so.
Detailed description of the invention
Fig. 1 is one of brush assembly of electric structural schematic diagram.
Fig. 2 is the electric machine structure schematic diagram in the utility model.
Fig. 3 is the clamping support schematic diagram in the utility model.
Fig. 4 is the top view of Fig. 3.
Fig. 5 is the motor partial structural diagram of the utility model.
Fig. 6 is the brush assembly of electric structural schematic diagram in the utility model.
Fig. 7 is the brush top view in Fig. 6.
Specific embodiment
The utility model is described in detail with reference to the accompanying drawings and embodiments:
As shown in Fig. 2, motor 100 comprising support base 110, stator coil 120, magnetic links 121, rotor 130 and brush
Component 140.Support base 110 is used to support stator coil 120, magnetic links 121, rotor 130 and brush assembly of electric 140.Rotor 130 can
It is rotatably arranged on support base 110, stator coil 120 and the setting of 121 surrounding rotor 130 of magnetic links, stator coil 120 are powered
When driving rotor 130 rotate.Brush assembly of electric 140 is used to transmit electricity for stator coil 120 and rotor 130.
As shown in Figure 2, Figure 3 and Figure 4, support base 110 includes support base ontology 111.Support base ontology 111 is round shape
Shape.111 edge of support base ontology is provided with one and encircles for protection column 112.Guardrail 112 protrudes from 111 upper surface of support base ontology.Support base
111 centre of ontology is provided with first through hole 113.First through hole 113 is for installing rotor 130.Table on support base ontology 111
There are two accommodation grooves 114 for face setting.Each accommodation groove 114 is surrounded by the first cell wall 1141 and the second cell wall 1142.First cell wall
1141 and second cell wall 1142 interval be arranged, limit 114 width of accommodation groove according to brush size determine.Two accommodation grooves
114 extend selected length along circular shape.114 one end of accommodation groove is connected to first through hole 113, the setting of other end opening.
Limit plate 115 is provided on first cell wall 1141.Limit plate 115 extends to 114 direction of accommodation groove, and covering part accommodation groove
114.Limit plate 115 is positioned close at first through hole 113.A preferred embodiment according to the present utility model, accommodation groove 114
Flute wall surfaces be additionally provided with one layer of lubricant layer (in figure for show).Lubricant layer can be made of suitable wear-resistant material, be used
It is lubricated in for aftermentioned brush 141, makes the smooth movement of brush 141, reduce the abrasion of the cell wall of brush 141 and accommodation groove 114.Root
According to the technical solution of the utility model, lubricant layer can both brush setting, and plate setting can also be made of suitable material
In accommodation groove 141.For example liner plate is made using teflon material, it is arranged in accommodation groove 141.Those skilled in the art can be with
Understand, lubricant layer is not the essential structure of the utility model.
Fixed column 117 is additionally provided on support base ontology 111.The circle of 114 circular shape of accommodation groove is arranged in fixed column 117
Heart side.There are two ventilation openings 116 for setting on support base ontology 111.Two ventilation openings 116 run through the support base ontology 111,
It is distributed in 113 two sides of first through hole.Bracket 118 there are two being also set up on support base ontology 111.Two brackets 118 are for installing
Magnetic links 121 and stator coil 120.118 self-supporting seat ontology of bracket, 111 upper surface, which extends, to be protruded from support base ontology 111
Surface.Its height and position can be arranged according to actual needs.In the example shown in the figure, bracket 118 half is around ventilation opening 116
Setting.
As shown in Fig. 2, 120 number of stator coil is two, interval setting.121 number of magnetic links is multi-disc, is stacked gradually
Setting.Its specific number is determined according to actual operation requirements.Magnetic links 121 are fixed on bracket 118 by two screws.Two
Stator coil 120 is fastened on magnetic links 121.Support frame 122 is additionally provided on magnetic links 121.The substantially arc of support frame 122
Shape, both ends are both connected on magnetic links 121.The second through-hole (not shown) is provided on support frame 122.130 one end of rotor
It is rotatably arranged in first through hole 113, the other end is rotatably arranged in the second through-hole.Support base ontology 111 and branch
Rotor 130 is rotatably mounted fixation by support 122.The setting of 121 surrounding rotor 130 of magnetic links, has gap between the two.Two
A stator coil 120 is separately positioned on 130 two sides of rotor.
As shown in Fig. 5, Fig. 6 and Fig. 7, motor 100 described in the utility model further includes brush assembly of electric 140.Brush assembly of electric
140 include brush 141, shunt welding 142 and torsional spring 150.Brush 141 is curve shape along its length, and curve shape is circular arc
Or elliptic arc, it is also possible to other available irregular curve shapes.In the example shown in the figure, brush 141 is circular arc
Shape.The central angle A of the brush 141 of arc-shaped is 30 ° -150 °, 141 length of brush that specific angle can be used optionally, and
The mobile determination of brush 141 is not influenced, for example can be selected 60 ° or 90 °.Brush 141 be carbon brush, material can for graphite,
Soak rouge graphite or metallic graphite carbon.Brush 141 is arranged in accommodation groove 114, and can move along 114 length direction of accommodation groove.Electricity
It brushes 141 one end 1411 to contact with rotor 130, the other end 1412 is provided with shunt welding 142.The other end 1412 of 141 upper surface of brush
Place is provided with step 1413, and shunt welding 142 is connected at step 1413.142 one end of shunt welding is electrically connected with brush 142, the other end with
Stator coil 120 is electrically connected.
Torsional spring 150 includes annulus section 151, first twists leg and 152 and second twist leg 153.Annulus section 151, first twist leg 152 with
Second, which twists leg, 153 is wholely set.First, which twists leg, 152 and second twists leg and 153 all has certain elasticity.Annulus section 151 is sleeved on
In fixed column 117.Restraining position ring block 119 is set in fixed column 117.Annulus section 151 is limited in fixed column 117 by stop collar 119,
It prevents from falling off on 151 self-retaining column 117 of annulus section.Stator coil 120 is located at right above fixed column 117, is also possible to prevent annulus
Section 151 falls off from fixed column 117.First, which twists leg, 152 supports on support base ontology 111, and second, which twists leg, 153 supports in brush
At 141 other ends 1412.Torsional spring 150 has elasticity, is exerted a force using second twist leg 153 pairs of brushes 141,141 one end of brush is made to begin
It is kept in contact eventually with rotor 130.When brush 141 is with using and wearing, second twists leg 153 elastic force can will be after abrasion
Brush 141 pushes rotor 130 to always, remains to be kept in contact with rotor after wearing brush 141.
In the utility model, brush uses curve shape, and increasing in the case where motor shape and size constancy can make
Length, and then increase motor service life.Support base ontology is circle, and brush is arc-shaped or ellipse arc, both may be used
It can may insure that the movement of brush is smooth using length to increase brush, using more convenient.Using circular arc or ellipse arc
Shape, the shape and mobile route of brush and the elastic force direction of torsional spring match, it can be ensured that torsional spring applies biggish effect to brush
Power, it is ensured that brush and rotor are in close contact, and enhance conductive effect.Brush is identical as accommodating groove shape, it can be ensured that brush is accommodating
It is smoothly moved in slot.
The one embodiment of torsional spring as elastomeric element, effect be to brush apply active force, make brush always with turn
Son is kept in contact.It according to the utility model, can also be replaced using other available elastomeric elements, such as cylindrical spring, dish
Spring etc..
Brush assembly of electric and motor in the utility model are identical in motor size since brush uses curve shape
In the case where, brush length increases, and the service life of motor is improved.Brush uses circular arc or elliptic arc shape, torsional spring
The shape in the second elastic force direction and brush to twist leg coincide, and matched with the mobile route of brush, therefore even if annulus section
Being arranged on the right side can also make second to twist leg in initial use applies biggish active force to brush, can make always brush and lead
Electrical components are in close contact, and both may insure that conductive effect remained balanced, and increase the effective rate of utilization of brush.Using this
The brush assembly of electric and motor of utility model, in the case where motor overall dimensions are constant, the service life of motor improves 1.5 times,
The availability of brush is improved to 90% or so, and the utilization rate of former brush is improved 30% or so.
The embodiments of the present invention are only used for being illustrated the utility model, do not constitute to scope of the claims
Limitation, other substantially equivalent substitutions that those skilled in that art are contemplated that, in the protection model of the utility model
In enclosing.
Claims (23)
1. brush assembly of electric characterized by comprising
Brush, the brush are curve shape along its length, and the one end of the brush along its length is used for and conductive component
It is in contact；
Shunt welding, described shunt welding one end are electrically connected with the brush, and the other end with electrical component for being electrically connected；
The brush is arranged in force application part, the force application part with applying active force, contacts the brush with conductive component；
After the brush wear, the force application part keeps applying active force to the brush, and keeps the brush after abrasion
It is contacted with conductive component.
2. brush assembly of electric according to claim 1, which is characterized in that the curve shape is circular shape or elliptic arc
Shape.
3. brush assembly of electric according to claim 1, which is characterized in that the brush can be movably arranged along Curve Path.
4. brush assembly of electric according to claim 3, which is characterized in that the curve shape of the Curve Path and the brush
It is identical.
5. according to claim 1, brush assembly of electric described in 3 or 4, which is characterized in that further include support base, the brush is removable
Ground is set on the support base.
6. brush assembly of electric according to claim 5, which is characterized in that the support base is provided with accommodation groove, the accommodating
Slot is surrounded by cell wall；The brush is set in the accommodation groove and can movably be arranged in the accommodation groove.
7. brush assembly of electric according to claim 6, which is characterized in that the shape of the accommodation groove along its length with it is described
The shape of brush along its length is identical.
8. brush assembly of electric according to claim 6, which is characterized in that further include limit plate, the limit plate is set to institute
On the cell wall for stating support base and/or accommodation groove, and it is located above the brush and is limited to the brush in the accommodation groove simultaneously
It can be moved along the accommodation groove.
9. brush assembly of electric according to claim 6, which is characterized in that be provided with lubricant layer, the profit in the accommodation groove
Slip layer be set to accommodating flute wall surfaces and with the brush contact.
10. brush assembly of electric according to claim 1, which is characterized in that the force application part is elastomeric element, the elasticity
Component is arranged with elastic force, and the resilient force of the elastomeric element makes the brush and conductive component in the brush
It is kept in contact.
11. brush assembly of electric according to claim 10, which is characterized in that the force application part is for another to the brush
End applies active force, touches the brush and conductive member.
12. brush assembly of electric according to claim 11, which is characterized in that the elastomeric element is torsional spring, the torsional spring tool
There are annulus section, first to twist leg to twist leg with second；The annulus section fixed setting, described first, which twists leg, supports on the securing means,
Described second, which twists leg, supports in the brush other end.
13. brush assembly of electric according to claim 12, which is characterized in that the annulus section is set to the center of circle of the brush
Side.
14. brush assembly of electric according to claim 1, which is characterized in that the brush has upper surface, and the upper surface is set
It is equipped with step, described shunt welding one end is connected at the step.
15. brush assembly of electric according to claim 1, which is characterized in that the brush is carbon brush.
16. brush assembly of electric according to claim 1, which is characterized in that the central angle of the brush is 30 ° -180 °.
17. brush assembly of electric according to claim 1, which is characterized in that further include:
Support base, the support base are provided with accommodation groove, and the brush is movably arranged in the accommodation groove；The support
Fixed column is provided on seat；
Torsional spring, the torsional spring twist leg with annulus section, first and twist leg with second；The annulus section is sleeved in the fixed column,
Described first, which twists leg, supports on the support base, and described second, which twists leg, supports in the brush other end.
18. brush assembly of electric according to claim 17, which is characterized in that restraining position ring block is set in the fixed column, it is described
Stop collar is for stopping the annulus section to be detached from from the fixed column.
19. motor characterized by comprising
Brush assembly of electric described in claim 1 to 16 any claim；
Stator coil, the shunt welding other end are electrically connected with the stator coil；
Rotor, the stator coil are set to the stator coil side and can be rotatably set, and described brush one end is supported
On the rotor.
20. motor according to claim 19, which is characterized in that the motor further includes magnetic links, and the magnetic links enclose
It is arranged around the rotor；The stator coil is arranged through the magnetic links.
21. motor according to claim 20, which is characterized in that the motor further include:
Support base, the support base are provided with accommodation groove, and the brush is movably arranged in the accommodation groove；The support
Fixed column is provided on seat；The magnetic links are fixed on the support base；
Torsional spring, the torsional spring twist leg with annulus section, first and twist leg with second；The annulus section is sleeved in the fixed column,
Described first, which twists leg, supports on the support base, and described second, which twists leg, supports in the brush other end；
The coil and/or the magnetic links are located above the fixed column, and the annulus section is stopped to take off from the fixed column
From.
22. motor according to claim 21, which is characterized in that be set with restraining position ring block, the limit in the fixed column
Ring is detached from for limiting the annulus section from the fixed column, the stop collar be located at the annulus section and the coil with/
Or between the magnetic links.
23. motor according to claim 19, which is characterized in that the side of rotor radial is arranged in the brush.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821672907.2U CN209448184U (en) | 2018-10-16 | 2018-10-16 | Brush assembly of electric and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821672907.2U CN209448184U (en) | 2018-10-16 | 2018-10-16 | Brush assembly of electric and motor |
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| Publication Number | Publication Date |
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| CN209448184U true CN209448184U (en) | 2019-09-27 |
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ID=68010152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821672907.2U Active CN209448184U (en) | 2018-10-16 | 2018-10-16 | Brush assembly of electric and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209448184U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109378666A (en) * | 2018-10-16 | 2019-02-22 | 阿美德格工业技术（上海）有限公司 | Brush assembly of electric and motor |
-
2018
- 2018-10-16 CN CN201821672907.2U patent/CN209448184U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109378666A (en) * | 2018-10-16 | 2019-02-22 | 阿美德格工业技术（上海）有限公司 | Brush assembly of electric and motor |
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