CN208241467U - A kind of starter - Google Patents
A kind of starter Download PDFInfo
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- CN208241467U CN208241467U CN201820585567.3U CN201820585567U CN208241467U CN 208241467 U CN208241467 U CN 208241467U CN 201820585567 U CN201820585567 U CN 201820585567U CN 208241467 U CN208241467 U CN 208241467U
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- assembly
- brush
- rear end
- end cap
- starter
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Abstract
A kind of starter, including field frame assembly, rotor assembly, brush holder assembly, rear end cap assembly；It is used cooperatively by changing commutator pitch center, shifting brush or both, commutation angle is rationally set, and by angle calculation, guarantee that starter commutation angle real work value in load is close with distortion of field theoretical value.Further, on the inner wall of rear end cap, setting two boss cooperated with the brush board notch of brush holder assembly；On rear end cap end face, be provided with stator housing end positioning rush point boss cooperation positioning groove and fit clearance it is smaller, guarantee that brush holder assembly and field frame assembly circumferentially can be within 0.5 ° of deviation angle, to reduce commutation angle actual deviation, to improve commutation, commutation spark grade is reduced, guarantees the consistency of no-load performance, load performance, braking ability in starter delivery test, enhances starter reliability and endurance life.
Description
Technical field
The utility model belongs to auto parts and components, and in particular to a kind of starter.
Background technique
In zero load, the magnetic line of force is uniformly distributed starter main field from the pole N to the pole S；After motor band carries, armature supply is generated
Armature mmf, and main field is had an impact, referred to as armature-reaction.Armature-reaction is distorted main field, the physics neutral conductor
Inverse starter armature direction of rotation, opposite geometric center lines deflect, if deflection angle is β, when starter load behavior is changed
It is designed to angle α approximate with this angle.
Starter designer is unclear to the mentality of designing of commutation angle or payes attention to insufficient, easily occur between brush holder and rear end cap,
It is worth higher or relatively low phenomenon without accurate circumferentially positioned measure or angle design between rear end cap and stator case.
Since the measure of commutation angle design is not in place or design value is improper, size, the work electricity of commutation spark are influenced
The size of stream, to influence the reliability and durability of starter.
Summary of the invention
The purpose of the utility model is to overcome the above-mentioned deficiencies of the prior art, and provide a kind of starter, guarantee to start
Machine commutation angle real work value in load behavior is close with theoretical value, reduces commutation spark grade, guarantees starter factory examination
The consistency of middle no-load performance, load performance, braking ability is tested, starter reliability and endurance life are enhanced.
The technical solution of the utility model is: including field frame assembly, rotor assembly, brush holder assembly, rear end cap assembly；It is described
End-journal is placed in the middle part of starter reduction device in bearing before rotor assembly, and the pressing bearing on the axle journal of rear end is placed in rear end cap assembly
In the bearing chamber of middle part, entire rotor assembly passes through field frame assembly inner cavity；Brush holder assembly brush carrier is built-in with brush, and brush passes through spring
It is pressed on commutator cylindrical face, there are two brush holder fastening thread holes on brush board, and brush holder assembly is fastened on rear end by screw
Inside cap assembly；There are two hangers and respective through hole, long bolts to pass through two screw threads on through-hole and Driving terminal for rear end cap assembly
Hole is tightened, and rear end cap assembly and field frame assembly end are fit together, and entire electromagnetic system part and starter are driven
The components such as end cap, retarder are bound up；Deflection angle between commutator pitch center line and elements centerline is θ 1, from
And change commutator pitch center, to improve commutation；Commutator pitch center, if being even number, center across number of segment
Line is between commutator segment at slot, if odd number, then at the geometric center of commutator segment.If element is across odd bin such as 1-3, center line
At the inter-tooth slots of silicon steel sheet, if center line is at the geometric center of the tooth of silicon steel sheet across even bin such as 1-2.Pass through brush board
On notch and rear end cap assembly in boss cooperation and field frame assembly on positioning rush on point boss and rear end cap assembly and position
Groove cooperation, makes the deflection angle θ 2 between brush-center line opposing polarities center line；For realize brush-displacement, deflection angle with
Following setting is related: angle is θ 3 between the brush-center line and the two brush holder fastening thread hole lines of centres in brush holder assembly, after
The two brush holders fastening via hole line of centres in end cap assembly and the deflection angle between positioning groove are θ 4, are determined in field frame assembly
Position rushes deflection angle θ 5, θ 2=θ 3+ θ 4+ θ 5 between point boss and respective poles center line；Commutation angle α=θ 2- θ 1=θ 3+ θ 4+ θ
5-θ1。
Two boss cooperated with the brush board notch of brush holder assembly are set on the inner wall of the rear end cap assembly, and rear end cap is total
At being provided with the positioning groove for rushing point boss cooperation with stator housing end positioning on inner wall of end, brush board notch and boss it
Between, to rush between point boss and positioning groove matching relationship be clearance fit for positioning, cooperation rear brush carrier assembly and field frame assembly are circumferential
Deviation angle controls within 0.5 °.
The utility model is used cooperatively by changing commutator pitch center, shifting brush or both, is rationally arranged
Commutation angle, and by angle calculation, guarantee that starter commutation angle real work value in load is close with distortion of field theoretical value.
Further, on the inner wall of rear end cap, setting two boss cooperated with the brush board notch of brush holder assembly；In rear end cap end face
On, be provided with stator housing end positioning rush point boss cooperation positioning groove and fit clearance it is smaller, guarantee brush holder assembly
Circumferentially to reduce commutation angle actual deviation, to improve commutation, commutation fire can be reduced within 0.5 ° of deviation angle with field frame assembly
Flower grade, guarantees the consistency of no-load performance, load performance, braking ability in starter delivery test, and enhancing starter is reliable
Property and endurance life.
Detailed description of the invention
Fig. 1 is the schematic cross-sectional view of the utility model.
Fig. 2 is the 3 D stereo schematic diagram of the utility model.
Fig. 3 is the structural schematic diagram that element is aligned with commutator pitch, brush, pole center line.
Fig. 4 is one of the schematic diagram of the deflection angle θ 1 between commutator pitch center line and elements centerline.
Fig. 5 is the two of the schematic diagram of the deflection angle θ 1 between commutator pitch center line and elements centerline.
Fig. 6 is the three of the schematic diagram of the deflection angle θ 1 between commutator pitch center line and elements centerline.
Fig. 7 is one of the schematic diagram of the deflection angle θ 2 between brush-center line opposing polarities center line.
Fig. 8 is the two of the schematic diagram of the deflection angle θ 2 between brush-center line opposing polarities center line.
Fig. 9 is the signal of angle theta 3 between brush-center line and the two brush holder fastening thread hole lines of centres in brush holder assembly
Figure.
Figure 10 be in the cap assembly of rear end two brush holders fastening the via hole line of centres and positioning groove between angle theta 4 signal
Figure.
Figure 11 is the schematic diagram that angle theta 5 between point boss and respective poles center line is rushed in positioning in field frame assembly.
Specific embodiment
In Fig. 1, the setting of starter commutation angle and calculation method are related to starter electromagnetic system part, including field frame assembly
10, rotor assembly 20, brush holder assembly 30, rear end cap assembly 40.End-journal is placed in the middle part of starter reduction device before rotor assembly 20
In bearing, the pressing bearing on the axle journal of rear end is placed in 40 middle part bearing chamber of rear end cap assembly, and entire rotor assembly 20 passes through fixed
Sub- 10 inner cavity of assembly.30 brush carrier of brush holder assembly is built-in with brush, and brush on 203 periphery of commutator, is brushed by spring compression
There are two brush holder fastening thread holes 303 on plate, and brush holder assembly 30 is fastened on inside rear end cap assembly 40 by screw.
In Fig. 2, there are two hangers 401 and respective through hole, long bolts to pass through through-hole and Driving terminal 50 for rear end cap assembly 40
On threaded hole 501 tighten, rear end cap assembly 40 and 10 end of field frame assembly are fit together, and by entire electromagnetic system portion
Divide and is bound up with components such as starter driving end cap, retarders.
Rotor assembly 20 includes core lamination stack, armature component, commutator, armature shaft；It is assumed that when starter zero load, commutation angle
It is zero, then the magnetic pole 102 of field frame assembly 10, armature component 201 and its turn one's head 2011 and commutator segment 2031, brush in rotor assembly 20
The mode standard that the brush 302 of frame assembly 30 is arranged is as shown in Figure 3.
At this point, element central is all aligned with brush center, pole center, Y1 is element span, and Yk is commutator section
Away from each component is arranged symmetrically.After starter band carries, armature-reaction is distorted main field；It is assumed that starter rotates
Direction rotates counterclockwise from starting in terms of drive end unit, then main field deviates to the right, is related to the correlated parts of commutation angle for adjustment
Space layout design, the measure taken can be divided into three kinds:
One is changing commutator pitch center to improve commutation (Fig. 4,5,6), i.e. element end is turned one's head and commutator segment
An angle is rotated, brush is motionless；Example in Fig. 4, element span 1-7, center line 001, commutator pitch 1-12, center line
002, element end and commutator segment rotate clockwise θ 1, then commutate and lag θ 1, if element end and commutator segment rotate counterclockwise,
Commutation is advanced.
Another kind is that shifting brush improves commutation, such as Fig. 7,8, is turned one's head motionless；Brush opposing polarities geometric center is clockwise
θ 2 is rotated, then the advanced θ 2 that commutates commutates if brush rotates θ 2 counterclockwise and lags θ 2.In figure, 302 be brush.
The third is to change commutation section to be used cooperatively away from center and shifting brush.
When brush moves, according to practical set, 302 center of brush in brush holder assembly and two brush holder fastening threads need to be measured
Angle theta 3(Fig. 9 between 303 line of centres of hole), two brush holders fastening 404 line of centres of via hole and positioning groove in the cap assembly of rear end
Angle theta 4(Figure 10 between 403 line of symmetry), positioning is rushed in line of symmetry and the respective poles 102 of point boss 101 in field frame assembly
Angle theta 5(Figure 11 between the heart), wherein to rush point boss 101 corresponding with positioning in field frame assembly for the positioning groove 403 of rear end cap assembly
Cooperation.
When practical calculating, with pole center for the first benchmark, according to assembly relation, it is by inverse motor steering rotation angle
Just, the rule being negative along steering angle, successively finds out θ 5, θ 4, θ 3, then has θ 2=θ 3+ θ 4+ θ 5；Finally obtain commutation angle:
α=θ2-θ1=θ3+θ4+θ5-θ1。
According to the theory of commutation of starter, α is commutation degree of advance, should be positive value.
Relatively high power starter commutation angle value is at 4 °~10 °.
In addition, on the inner wall of rear end cap, setting two boss 402 cooperated with the brush board notch 301 of brush holder assembly；?
On rear end cap end face, be provided with stator housing end positioning rush point boss 101 cooperation positioning groove 403 and fit clearance compared with
It is small, guarantee brush holder assembly and field frame assembly circumferentially can deviation angle control within 0.5 °, to reduce commutation angle actual deviation.
Claims (2)
1. a kind of starter, it is characterised in that: including field frame assembly (10), rotor assembly (20), brush holder assembly (30), rear end cap
Assembly (40)；
End-journal is placed in the Fitted Axles bearing on the axle journal of rear end in the middle part of starter reduction device in bearing before the rotor assembly (20)
In in the bearing chamber of rear end cap assembly (40) middle part, entire rotor assembly (20) passes through field frame assembly (10) inner cavity；
Brush holder assembly (30) brush carrier is built-in with brush (302), and brush on commutator (203) periphery, is brushed by spring compression
There are two brush holder fastening thread hole (303) on plate, and brush holder assembly (30) is fastened on rear end cap assembly (40) inside by screw；
There are two hangers (401) and respective through hole, long bolts to pass through on through-hole and Driving terminal (50) for rear end cap assembly (40)
Two threaded holes (501) are tightened；
Deflection angle between commutator pitch center line and elements centerline is θ 1；
The boss (402) in notch (301) and rear end cap assembly (40) on brush board cooperates, and positions and is rushed a little on field frame assembly (10)
Positioning groove (403) cooperates on raised (101) and rear end cap assembly (40), inclined between brush-center line opposing polarities center line
Gyration is θ 2；
Angle is θ 3 between brush (302) center line and two brush holder fastening thread hole (303) lines of centres in brush holder assembly, after
Two brush holders fastening via hole (404) line of centres in end cap assembly and the deflection angle between positioning groove (403) are θ 4, stator
The deflection angle θ 5 between point boss (101) and respective poles (102) center line, θ 2=θ 3+ θ 4+ θ are rushed in positioning in assembly (10)
5；
Commutation angle α=θ 2- θ 1=θ 3+ θ 4+ θ 5- θ 1.
2. starter according to claim 1, it is characterised in that: two are arranged on the inner wall of the rear end cap assembly (40)
The boss (402) cooperated with the brush board notch (301) of brush holder assembly (30), be provided on rear end cap assembly (40) inner wall of end with
The positioning groove (403) of point boss (101) cooperation is rushed in stator housing end positioning, brush board notch (301) and boss (402) it
Between, to rush between point boss (101) and positioning groove (403) matching relationship be clearance fit for positioning, cooperation rear brush carrier assembly with determine
Sub- assembly circumferential offset angle control is within 0.5 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820585567.3U CN208241467U (en) | 2018-04-24 | 2018-04-24 | A kind of starter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820585567.3U CN208241467U (en) | 2018-04-24 | 2018-04-24 | A kind of starter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208241467U true CN208241467U (en) | 2018-12-14 |
Family
ID=64585372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820585567.3U Active CN208241467U (en) | 2018-04-24 | 2018-04-24 | A kind of starter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208241467U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109599975A (en) * | 2018-04-24 | 2019-04-09 | 东风汽车电气有限公司 | A kind of starter |
| CN113178969A (en) * | 2021-04-21 | 2021-07-27 | 肇庆凌飞航空科技有限公司 | Positioning device and motor |
| CN117439318A (en) * | 2023-12-20 | 2024-01-23 | 常州市凯迪电器股份有限公司 | Permanent magnet direct current motor with bidirectional advance reversing |
-
2018
- 2018-04-24 CN CN201820585567.3U patent/CN208241467U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109599975A (en) * | 2018-04-24 | 2019-04-09 | 东风汽车电气有限公司 | A kind of starter |
| CN109599975B (en) * | 2018-04-24 | 2024-04-19 | 东风电驱动系统有限公司 | Starter |
| CN113178969A (en) * | 2021-04-21 | 2021-07-27 | 肇庆凌飞航空科技有限公司 | Positioning device and motor |
| CN113178969B (en) * | 2021-04-21 | 2022-05-17 | 肇庆凌飞航空科技有限公司 | Positioning device and motor |
| CN117439318A (en) * | 2023-12-20 | 2024-01-23 | 常州市凯迪电器股份有限公司 | Permanent magnet direct current motor with bidirectional advance reversing |
| CN117439318B (en) * | 2023-12-20 | 2024-03-26 | 常州市凯迪电器股份有限公司 | Permanent magnet direct current motor with bidirectional advance reversing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200428 Address after: 441000 Jiangshan South Road Venture Center, Xiangyang High-tech Zone, Hubei Province Patentee after: Dongfeng Power Drive System Co.,Ltd. Address before: 441000 Spring Garden Road, Xiangyang hi tech Zone, Hubei Province, No. 2 Patentee before: DONGFENG MOTOR ELECTRIC Co.,Ltd. |
|
| TR01 | Transfer of patent right |