CN105978212B - A kind of motor brush support device - Google Patents
A kind of motor brush support device Download PDFInfo
- Publication number
- CN105978212B CN105978212B CN201610306997.2A CN201610306997A CN105978212B CN 105978212 B CN105978212 B CN 105978212B CN 201610306997 A CN201610306997 A CN 201610306997A CN 105978212 B CN105978212 B CN 105978212B
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- CN
- China
- Prior art keywords
- brush
- arm
- force
- support device
- mounting hole
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/14—Means for supporting or protecting brushes or brush holders
- H02K5/143—Means for supporting or protecting brushes or brush holders for cooperation with commutators
- H02K5/145—Fixedly supported brushes or brush holders, e.g. leaf or leaf-mounted brushes
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Current Collectors (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The present invention provides a kind of motor brush support device,Several brush assembly of electric including insulated mounting plate and on the insulated mounting plate,The brush assembly of electric includes the brushgear housing for being fixed on the insulated mounting plate side,The brush that is threaded through in the brushgear housing and the base for being fixed on the insulated mounting plate opposite side,The brushgear housing is equipped with the second mounting hole,The insulated mounting plate is equipped with the first mounting hole being used cooperatively with second mounting hole,The motor brush support device further includes the torsionspring through second mounting hole and first mounting hole,The top and bottom of the torsionspring are respectively equipped with integrally formed long end and stretch out the arm of force and the short end stretching arm of force,The long end stretching arm of force extends to the afterbody of the brush and spring fastening is on the tail end face of the brush,The short end stretches out arm of force spring fastening on the base.For the present invention by setting the torsionspring through insulated mounting plate to realize the fixation of brush assembly of electric, it had not only saved the installation space of support device, but also stable radial pressure can be provided to brush, ensured the steady contact of the commutator of brush and motor.
Description
Technical field
The present invention relates to motor field, particularly a kind of motor brush support device.
Background technology
For the direct current generator with brush, between motor internal stationary parts and moving component, it is acted on brush
It is the electric current that stabilization is provided for rotor, in order to ensure the reliable contacts of brush and commutator, it is necessary to provide one to brush
Towards the radial pressure of commutator.In addition, if the support device of brush is unable to secure support brush, brush is in high speed rotates
Easily wear, trigger electric fault even structural failure.
In the prior art, generally by dielectric will compress spring be installed on metal shell on so that compression spring with
Brush is coaxial, and compression spring compresses brush in radial direction.Structure occupancy motor radial space is larger, in addition, dielectric
Between brush and metal shell, dielectric is easily damaged, so as to cause security incident.
The content of the invention
For above-mentioned technical problem, the present invention provides a kind of motor brush support device, its technical solution are as follows：
A kind of motor brush support device, including insulated mounting plate and several electricity on the insulated mounting plate
Brush assemblies, the brush assembly of electric include being fixed on the brushgear housing of the insulated mounting plate side, are threaded through in the brushgear housing
Brush and the base for being fixed on the insulated mounting plate opposite side, the brushgear housing are equipped with the second mounting hole, the insulation peace
Loading board is equipped with the first mounting hole being used cooperatively with second mounting hole, and the motor brush support device, which further includes, to be run through
The torsionspring of second mounting hole and first mounting hole, the top and bottom of the torsionspring are respectively equipped with one
The arm of force is stretched out at molding long end and short end stretches out the arm of force, and the afterbody and elastic buckles that the arm of force extends to the brush are stretched out in the long end
It is pressed on the tail end face of the brush, the short end stretches out arm of force spring fastening on the base.
Further, the tail end face of the brush is equipped with groove, and the afterbody of the arm of force is stretched out along the ditch in the long end
Groove spring fastening is on the tail end face of the brush.
Further, the groove is arc, and the afterbody of the arm of force is stretched out equipped with matched convex with the groove in the long end
Go out arcuate structure.
Further, the width of the groove stretches out 1~1.1 times of the diameter of the arm of force for the long end.
Further, the base close to the insulated mounting plate one side be equipped with " 9 " font raceway groove, the ditch
Road includes integrally formed ring part and line part, and the short end stretches out the arm of force along the line part spring fastening at the bottom
On seat, the bottom of the torsionspring is entrenched in the ring part.
Further, the width of the line part stretches out 1~1.1 times of diameter of the arm of force for the short end.
Further, be equipped with the 3rd mounting hole through the base in the ring part, the 3rd mounting hole it is interior
Wall is equipped with screw thread, and the motor brush support device further includes supporting screw, and the supporting screw sequentially passes through the described 3rd
The inner cavity of mounting hole and the torsionspring, the threaded rod of the supporting screw form the central shaft of the torsionspring.
Further, the 90%~100% of the aperture of a diameter of torsionspring of the threaded rod of the supporting screw.
Further, the first opening is offered on the roof of the brushgear housing, first opening is used to draw the electricity
The power cord of brush, one second opening is each offered in the two side walls of the brushgear housing, and the long end is stretched out the arm of force and passed through
Second opening extends to the afterbody of the brush and spring fastening is on the tail end face of the brush.
Further, the brush assembly of electric is two groups.
Compared with prior art, motor brush support device disclosed by the invention has reached following technique effect：By setting
The torsionspring put through insulated mounting plate realizes the fixation of brush assembly of electric, has not only saved the installation space of support device, but also energy
Stable radial pressure is provided to brush, ensures the steady contact of brush and commutator.
Brief description of the drawings
Fig. 1 is the structure diagram of motor brush support device provided by the invention；
Fig. 2 is the decomposition diagram of Fig. 1；
Fig. 3 is the structure diagram of the torsionspring in Fig. 2；
Fig. 4 is the bottom view of the torsionspring in Fig. 2；
Fig. 5 is the structure diagram of the brushgear housing in Fig. 2；
Fig. 6 is the structure diagram of the base in Fig. 2；
Fig. 1 to Fig. 6 includes insulated mounting plate 1, brushgear housing 2, brush 3, torsionspring 4, base 5, supporting screw 6,
The arm of force 41, short end stretching are stretched out in one mounting hole 11, the 22, second opening 23 of the second mounting hole 21, first opening, groove 31, long end
The arm of force 42, raceway groove 51, the 3rd mounting hole 52, ring part 51a, line part 51b.
Embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, it is below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is described in further detail.
As shown in Figures 1 to 6, in a specific embodiment, motor brush support device of the invention includes insulation peace
Loading board 1, torsionspring 4, brush assembly of electric, base 5, the brush assembly of electric include the brushgear housing 2 of afterbody opening and are threaded through described
Brush 3 in brushgear housing 2.
In the present embodiment, the brush assembly of electric shares two groups, in other embodiment, can select according to specific needs described
The number of brush assembly of electric, the insulated mounting plate 1 are loop configuration, and in-between hole is for connecting the commutator of motor (not
Diagram).
The brushgear housing 2 is fixedly mounted on the side of the insulated mounting plate 1 by screw, and the brush 3 is threaded through institute
State in brushgear housing 2.Brushgear housing 2, the thermal coefficient of expansion of the brushgear housing 2 are more than described in 3 expanded by heating squeeze crack of brush in order to prevent
Or the thermal coefficient of expansion equal to the brush 3.
The base 5 is being fixedly mounted on the opposite side of the insulated mounting plate 1 by several screws with the brush
2 corresponding positions of seat.
The brushgear housing 2 is equipped with the second mounting hole 21, and the relevant position of the insulated mounting plate 1 is equipped with and described second
The first mounting hole 11 that mounting hole 21 is used cooperatively.The torsionspring 4 is pacified through second mounting hole 21 and first is connected
Fill hole 11.The top and bottom of the torsionspring 4 are respectively equipped with integrally formed long end and stretch out the arm of force 41 and short end stretching power
Arm 42, the long end stretch out the arm of force 41 extend to the brush 3 afterbody and spring fastening the brush 3 tail end face
On, the short end stretches out 42 spring fastening of the arm of force on the base 5.
As it can be seen that the torsionspring 4 can provide a stable radial pressure to the brush 3, ensure that described
The steady contact of brush 3 and the commutator of motor.
The first opening 22 is offered on the roof of the brushgear housing 2, first opening 22 is used to draw the brush 3
Power cord, one second opening 23 is each offered in the two side walls of the brushgear housing 2, and the long end is stretched out the arm of force 41 and passed through
Second opening 23 extends to the afterbody of the brush 3 and spring fastening is on the tail end face of the brush 3.
In the present embodiment, the tail end face of the brush 3 is equipped with groove 31, the long end stretch out the afterbody of the arm of force 41 along
31 spring fastening of groove is on the tail end face of the brush 3.The groove 31 is so that the arm of force 41 is stretched out more in the long end
Add and withhold securely on the tail end face of the brush 3, prevent from sliding.
Preferably, the groove 31 is arc, and the afterbody of the long end stretching arm of force 41 is equipped with to be matched with the groove 31
Protrusion arcuate structure, the width of the groove 31 stretches out 1~1.1 times of the diameter of the arm of force 41 for the long end.
In the present embodiment, the mounting surface that the base 5 is contacted with the insulated mounting plate 1 is equipped with the raceway groove of " 9 " font
51, the raceway groove 51 includes integrally formed ring part 51a and line part 51b.The short end of the torsionspring 4 stretches out power
For arm 42 along the line part 51b spring fastenings on the base 5, the bottom of the torsionspring 4 is entrenched in the annular
In portion 51a.The raceway groove 51 of " 9 " font so that the torsionspring 4 is more securely fixed on the base 5.
Preferably, the width of the line part 51b stretches out 1~1.1 times of diameter of the arm of force 42 for the short end.
In the present embodiment, motor brush support device of the invention has further included supporting screw 6, in the ring part 51a
Equipped with the 3rd mounting hole 52 through the base 5, the inner wall of the 3rd mounting hole 52 is equipped with matches somebody with somebody with the supporting screw 6
Close the screw thread used.The supporting screw 6 sequentially passes through the inner cavity of the 3rd mounting hole 52 and the torsionspring 4, and most
The torsionspring 4 is stretched out eventually.
The supporting screw 6 constitutes the central shaft of the torsionspring 4, prevents torsionspring 4 in high-speed rotation
Or horizontal mechanically deform is produced in acutely accelerating.
Preferably, the 90%~100% of the aperture of a diameter of torsionspring 4 of the threaded rod of the supporting screw 6.
The description with certain particularity detailed enough has been carried out to the present invention above.Ordinary skill in fields
Personnel are it should be understood that what the description in embodiment was merely exemplary, before without departing from true spirit and scope of the present invention
Put make it is all change should all belong to protection scope of the present invention.Scope of the present invention is by the power
What sharp claim was defined, rather than limited by foregoing description in embodiment.
Claims (9)
1. a kind of motor brush support device, including insulated mounting plate (1) and some on the insulated mounting plate (1)
A brush assembly of electric, the brush assembly of electric include being fixed on the brushgear housing (2) of the insulated mounting plate (1) side, be threaded through it is described
Brush (3) in brushgear housing (2) and the base (5) for being fixed on the insulated mounting plate (1) opposite side, on the brushgear housing (2)
Equipped with the second mounting hole (21), the insulated mounting plate (1) is equipped with first be used cooperatively with second mounting hole (21)
Mounting hole (11), it is characterised in that：It further includes the torsion through second mounting hole (21) and first mounting hole (11)
Turn spring (4), the top and bottom of the torsionspring (4) are respectively equipped with integrally formed long end and stretch out the arm of force (41) and short end
The arm of force (42) is stretched out, the long end stretching arm of force (41) extends to the afterbody of the brush (3) and spring fastening is in the brush
(3) on tail end face, the short end stretches out the arm of force (42) spring fastening on the base (5)；
The base (5) is equipped with the raceway groove (51) in " 9 " font, the raceway groove close to the one side of the insulated mounting plate (1)
(51) integrally formed ring part (51a) and line part (51b) are included, the short end stretches out the arm of force (42) along the line part
On the base (5), the bottom of the torsionspring (4) is entrenched in the ring part (51a) (51b) spring fastening.
2. motor brush support device as claimed in claim 1, it is characterised in that：The tail end face of the brush (3) is equipped with
Tail of the afterbody of the arm of force (41) along the groove (31) spring fastening in the brush (3) is stretched out at groove (31), the long end
On end surface.
3. motor brush support device as claimed in claim 2, it is characterised in that：The groove (31) is arc, the length
The afterbody that the arm of force (41) is stretched out at end is equipped with and the matched protrusion arcuate structure of the groove (31).
4. motor brush support device as claimed in claim 2, it is characterised in that：The width of the groove (31) is the length
1~1.1 times of the diameter of the arm of force (41) is stretched out at end.
5. motor brush support device as claimed in claim 1, it is characterised in that：The width of the line part (51b) is institute
State 1~1.1 times that short end stretches out the diameter of the arm of force (42).
6. motor brush support device as claimed in claim 1, it is characterised in that：It is equipped with and runs through in the ring part (51a)
3rd mounting hole (52) of the base (5), the inner wall of the 3rd mounting hole (52) are equipped with screw thread, the motor brush branch
Support arrangement further includes supporting screw (6), and the supporting screw (6) sequentially passes through the 3rd mounting hole (52) and the torsion bullet
The inner cavity of spring (4), the threaded rod of the supporting screw (6) form the central shaft of the torsionspring (4).
7. motor brush support device as claimed in claim 6, it is characterised in that：The threaded rod of the supporting screw (6)
The 90%~100% of the aperture of a diameter of torsionspring (4).
8. motor brush support device as claimed in claim 1, it is characterised in that：Opened up on the roof of the brushgear housing (2)
There is the first opening (22), first opening (22) is used for the power cord for drawing the brush (3), and the two of the brushgear housing (2)
One second opening (23) is each offered on a side wall, the long end is stretched out the arm of force (41) and prolonged by the described second opening (23)
Extend the afterbody of the brush (3) and spring fastening is on the tail end face of the brush (3).
9. motor brush support device as claimed in claim 1, it is characterised in that：The thermal coefficient of expansion of the brushgear housing (2)
More than or equal to the thermal coefficient of expansion of the brush (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610306997.2A CN105978212B (en) | 2016-05-11 | 2016-05-11 | A kind of motor brush support device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610306997.2A CN105978212B (en) | 2016-05-11 | 2016-05-11 | A kind of motor brush support device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105978212A CN105978212A (en) | 2016-09-28 |
| CN105978212B true CN105978212B (en) | 2018-05-04 |
Family
ID=56992911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610306997.2A Active CN105978212B (en) | 2016-05-11 | 2016-05-11 | A kind of motor brush support device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105978212B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106533030A (en) * | 2016-12-21 | 2017-03-22 | 贵阳万江航空机电有限公司 | Electric brush assembling method for brush motor, and matching structure of electric brush and spring |
| CN112953089B (en) * | 2019-12-11 | 2024-10-15 | 江苏民威电碳科技有限公司 | Electric brush with positioning function for direct current motor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19962362A1 (en) * | 1999-12-23 | 2001-06-28 | Pierburg Ag | Electric motor for fuel pump of IC engine, has carbon brushes biased towards commutator by helical leg spring tensioned between carbon brushes and end plate and fixed in recess in end plate |
| CN1780103A (en) * | 2004-11-19 | 2006-05-31 | 乐金电子(天津)电器有限公司 | Brush supporting structure of bracket for universal electric motor |
| CN201207593Y (en) * | 2008-05-29 | 2009-03-11 | 比亚迪股份有限公司 | Terminal cover component for motor and motor including the same |
| CN205791933U (en) * | 2016-05-11 | 2016-12-07 | 无锡市河埒传感器有限公司 | A kind of motor brush support means |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3512999B2 (en) * | 1997-12-26 | 2004-03-31 | 株式会社ミツバ | Brush equipment |
| JP2001025214A (en) * | 1999-07-02 | 2001-01-26 | Asmo Co Ltd | Brush device |
| JP6484426B2 (en) * | 2014-10-24 | 2019-03-13 | 株式会社日立製作所 | Rotating machine |
-
2016
- 2016-05-11 CN CN201610306997.2A patent/CN105978212B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19962362A1 (en) * | 1999-12-23 | 2001-06-28 | Pierburg Ag | Electric motor for fuel pump of IC engine, has carbon brushes biased towards commutator by helical leg spring tensioned between carbon brushes and end plate and fixed in recess in end plate |
| CN1780103A (en) * | 2004-11-19 | 2006-05-31 | 乐金电子(天津)电器有限公司 | Brush supporting structure of bracket for universal electric motor |
| CN201207593Y (en) * | 2008-05-29 | 2009-03-11 | 比亚迪股份有限公司 | Terminal cover component for motor and motor including the same |
| CN205791933U (en) * | 2016-05-11 | 2016-12-07 | 无锡市河埒传感器有限公司 | A kind of motor brush support means |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105978212A (en) | 2016-09-28 |
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