CN209057065U - A kind of rain shaving electrical machine of noise-reduction - Google Patents
A kind of rain shaving electrical machine of noise-reduction Download PDFInfo
- Publication number
- CN209057065U CN209057065U CN201821908280.6U CN201821908280U CN209057065U CN 209057065 U CN209057065 U CN 209057065U CN 201821908280 U CN201821908280 U CN 201821908280U CN 209057065 U CN209057065 U CN 209057065U
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- CN
- China
- Prior art keywords
- carbon brush
- gear
- noise
- rain shaving
- shaving electrical
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Abstract
The utility model relates to a kind of rain shaving electrical machines of noise-reduction, include electric machine casing, magnetic shoe component, armature component, gear housing, brush component, geared parts, armature component includes rotor shaft, winding, commutator, geared parts include setting gear, wiring board, gear shaft rod, geared parts also include angular transducer, angular transducer includes multipole magnetic patch and two Hall sensors, the magnetic direction on Hall sensor surface and the axial direction of gear are parallel, the beneficial effects of the utility model are: replacing original automatic reset contact by angular transducer, realize the contactless noiseless commutation return of rain shaving electrical machine, and it can effectively extend the service life of rain shaving electrical machine, the angularly disposed of carbon brush is directly connected to carbon brush with brush holder, so that motor noise is greatly lowered, it can be more steady, quietly work, it is thorough Bottom solves carbon brush clamping stagnation, the big problem of noise.
Description
Technical field
The utility model relates to a kind of rain shaving electrical machines, and in particular to a kind of rain shaving electrical machine of noise-reduction.
Background technique
Wiper is the indispensable accessory of automobile, and the purposes of rain shaving electrical machine is exactly to be used to install and drive automobile rain
Scrape, traditional wiper motor machine mostly use greatly one-way motors include shell, restorer slip ring, automatic reset contact,
Transmission shaft, bearing, bobbin, commutator, spring, carbon brush, carbon brush holder, not only assembly difficulty is big, easy to damage, service life is short,
And there are high noisy, vibration is big, be difficult to frequent starting and starting and disconnects the defects of generating spark, these problems bring
Direct result is that the contact of motor is easy to burn out, and then leads to motor damage, causes service life too short, and operational process
Middle bring high noisy can bring sense of discomfort to driver.
Utility model content
The technical problem to be solved by the utility model is in view of the above shortcomings of the prior art,
A kind of rain shaving electrical machine noiseless, with long service life is provided.
To achieve the above object, the utility model provides following technical solution: a kind of rain shaving electrical machine of noise-reduction, packet
Containing electric machine casing, the magnetic shoe component being attached on electric machine casing inner wall, the armature component and motor casing being arranged in electric machine casing
Gear housing that body is interlocked, the brush component being attached on gear housing inner wall, setting in the intracorporal geared parts of gear hub,
It is characterized by: the armature component include be arranged in electric machine casing rotor shaft, be wrapped in rotor shaft winding,
And the commutator in rotor shaft is set, the geared parts include the gear being arranged in gear housing, are attached to tooth
It takes turns wiring board corresponding with gear on shell and the gear shaft rod on gear with gear-linked is set, the gear part
Part also includes angular transducer, and the angular transducer includes multipole magnetic patch and the setting being arranged on gear with gear rotation
In the circuit board for detect when the rotation of multipole magnetic patch two of incremental magnetic field output directly proportional to angle step suddenly
That sensor, the magnetic direction on the Hall sensor surface are parallel with the axial direction of gear.
By adopting the above technical scheme, rain shaving electrical machine includes electric machine casing and gear housing, electric machine casing and gear housing
The face that offsets equipped with brush component, the intracorporal rotor shaft one end of motor casing is arranged inside electric machine casing to be turned with motor driven
Dynamic, the other end is passed through inside brush component to gear housing and is offseted linkage with gear, armature component driving rotor shaft, rotor
Shaft linkage gear rotates, the commutation and rate of the angular transducer control rain brush in geared parts, and wherein angular transducer is
Refer to can experience tested angle and be converted into usable output signal sensor have it is contactless, highly sensitive, close to infinite rotational
The advantages that service life, noiseless, high duplication, good high frequency response characteristic, when work, passes as two Halls on angular transducer
Sensor will misplace in the same direction side by side for induction zone, and the multipole magnetic patch of motor driven gear rotation, gear generates changing magnetic field, Hall
The variation of sensor sensing magnetic field strength, the output voltage pulse after amplifying shaping, spatially due to two Hall sensors
Arranged in dislocation, when close to rotary pole, two Hall sensors sense that changes of magnetic field there is time difference, two output voltages
It there is the time difference between pulse, direction of rotation can be differentiated according to the advanced of phase or lag, to pulse number in the unit time
Angular displacement, angular speed, acceleration etc. just can be obtained in counting, then by automobile MCU control system united analysis, driving motor works as tooth
When wheel is rotated with motor, origin switch movement will be triggered when immediately below the level-one detection Hall switch of multistage magnetic patch, prompts motor
It should commutate, change triggering inflection point switch motion prompt motor when immediately below another pole to detection Hall switch of multistage magnetic patch
To, using angular transducer replace original contact switch, realize the contactless commutation of rain shaving electrical machine, make rain shaving electrical machine work in
Noiseless generates and prolongs the service life.
A kind of rain shaving electrical machine of above-mentioned noise-reduction can be further arranged to: the brush component includes to be attached to gear
Carbon brush plate, carbon brush holder and carbon brush in inner walls, the carbon brush plate middle part are provided with commutator mounting hole, the commutator peace
It fills hole periphery and is arranged three groups for carbon brush holder mounting hole, the carbon brush holder is connect with carbon brush holder mounting hole wedging, the carbon brush inclination
Be arranged in carbon brush holder, one end is connect with commutator, and the other end is connect with the stainless steel elastic slice being arranged in carbon brush holder, it is described not
The steel bomb piece that becomes rusty is used to push against carbon brush side and carbon brush holder.
By adopting the above technical scheme, original compression spring is changed to stainless steel elastic slice, the setting of stainless steel elastic slice
It is avoided that the not work problem of motor caused by soldering in the prior art is bad and carbon brush is stuck, the corrosion resistance of stainless steel elastic slice
Considerably beyond the spring after zinc-plated, thoroughly solve to get rusty or assemble because of spring make mistakes caused by motor operation instability problem,
Increase oblique angle in the end of carbon brush, thus the elastic force of stainless steel elastic slice has the transverse direction that part power acts on carbon brush, makes carbon
Brush is close to side carbon brush holder wall, and another carbon brush and commutator contact portion increase Compensation Design, make rubbing between carbon brush and commutator
It wipes power generating unit component and acts on carbon brush, it is made to be close to ipsilateral carbon brush plate, avoid carbon brush in carbon brush holder since vibration produces with this
Raw abnormal sound, meanwhile, carbon brush is not directly connected to brush holder so that motor noise is greatly lowered, can it is more steady,
Quietly work thoroughly solves carbon brush clamping stagnation, the big problem of noise.
A kind of rain shaving electrical machine of above-mentioned noise-reduction can be further arranged to: the multipole magnetic patch is by being arranged in gear
And several arctic, the South Pole being spacedly distributed form.
By adopting the above technical scheme, multistage magnetic patch is arranged on gear, and is embedded in by the interval such as center of circle of gear shaft rod
In the groove above gear, it deviate from angular transducer will not easily in operation more stable.
A kind of rain shaving electrical machine of above-mentioned noise-reduction can be further arranged to: the carbon brush plate is PC material.
By adopting the above technical scheme, PC has excellent electrical insulating property, extensibility, dimensional stability and resistant to chemical etching
Property, higher intensity, heat resistance and cold resistance also have many advantages, such as self-extinguishment, fire-retardant, nontoxic, pigmentable, energy when as carbon brush plate
It effectively prevent overheating in rain shaving electrical machine work and melt.
The beneficial effects of the utility model are: replacing original automatic reset contact by angular transducer, rain is realized
The contactless noiseless commutation return of motor is scraped, and can effectively extend the service life of rain shaving electrical machine, the angularly disposed of carbon brush makes carbon brush
It is not directly connected to brush holder, so that motor noise is greatly lowered, can more steady, quietly work, thoroughly solve carbon
It swipes the card stagnant, the big problem of noise.
The utility model is described in further detail with reference to the accompanying drawings and examples.
Detailed description of the invention
Fig. 1 is the stereoscopic schematic diagram of the utility model embodiment.
Fig. 2 is the explosive view of Fig. 1.
Fig. 3 is the right view of the utility model embodiment.
Fig. 4 is the sectional view along AA of Fig. 3.
The structural schematic diagram of Fig. 5 the utility model embodiment brush component 3.
The schematic diagram of internal structure of Fig. 6 the utility model embodiment brush component 3.
The schematic diagram of Fig. 7 the utility model embodiment.
Specific embodiment
As shown in Fig. 1-Fig. 7, a kind of rain shaving electrical machine of noise-reduction comprising electric machine casing 1, is attached in electric machine casing 1
Magnetic shoe component 11 on wall, the armature component 12 being arranged in electric machine casing 1, the gear housing 2 being interlocked with electric machine casing 1,
The brush component 3 being attached on 2 inner wall of gear housing, the geared parts being arranged in gear housing 2, it is characterised in that: described
Armature component 12 include be arranged in electric machine casing 1 rotor shaft 121, be wrapped in rotor shaft 121 winding 122, with
And the commutator 123 in rotor shaft 121 is set, the geared parts include the gear 4, attached being arranged in gear housing 2
In gear housing 2 wiring board 5 corresponding with gear 4 and be arranged on gear 4 with gear 4 link gear shaft rod
41, the geared parts also include angular transducer, and the angular transducer includes to be arranged on gear 4 to rotate with gear 4
Multipole magnetic patch 42 and setting assist side 5 on for detecting that incremental magnetic field and angle increase when multipole magnetic patch 42 rotates
Two Hall sensors 51 of directly proportional output are measured, if the multipole magnetic patch 42 is by being arranged in gear 4 and being spacedly distributed
The dry arctic, South Pole composition, the magnetic direction on 51 surface of Hall sensor is parallel with the axial direction of gear 4, the electricity
Brush component 3 includes the carbon brush plate 31, carbon brush holder 32 and carbon brush 33 being attached on 2 inner wall of gear housing, 31 middle part of carbon brush plate
It is provided with commutator mounting hole 34,34 periphery of commutator mounting hole is arranged three groups for carbon brush holder mounting hole 321, the carbon brush
Frame 32 is connect with 321 wedging of carbon brush holder mounting hole, and the carbon brush 33 is inclined in carbon brush holder 32, one end and commutator 123
Connection, the other end are connect with the stainless steel elastic slice 322 being arranged in carbon brush holder 32, and the stainless steel elastic slice 322 is used for carbon brush
33 sides and carbon brush holder 32 push against, and the carbon brush plate 31 is PC material.
When south, the arctic on multistage magnetic patch 42 are rotated with gear 4, arranged in dislocation on the circuit board 5 of 4 top of gear
The multipole magnetic patch 42 of gear 4 is generated changing magnetic field by two Hall sensors 51,51 induced magnetic field intensity of Hall sensor
Variation, the output voltage pulse after amplifying shaping, when close to rotary pole, two Hall sensors 51 sense changes of magnetic field just
There are the time difference, the time difference there is between two output voltage pulses, rotation side can be differentiated according to the advanced of phase or lag
To counting in the unit time to pulse number just can be obtained angular displacement, angular speed, acceleration etc., then by automobile MCU control system
United analysis, driving motor, when gear 4 is rotated with motor, immediately below the level-one detection Hall sensor 51 of multistage magnetic patch 42
When trigger switch is acted, prompt motor that should commutate, another pole of multistage magnetic patch 42 to 51 underface of detection Hall sensor
When will triggering commutation action prompt motor commutation, using angular transducer replace original contact switch, realize rain shaving electrical machine
Contactless commutation makes noiseless in rain shaving electrical machine work generate and prolong the service life, and due in the brush component 3 of replacement
Stainless steel elastic slice 322 replaces original spring, and motor caused by soldering in the prior art is bad and carbon brush is stuck is avoided not work
Problem, the corrosion resistance of stainless steel elastic slice 322 are thoroughly solved because spring gets rusty or assembles considerably beyond the spring after zinc-plated
Motor operation instability problem caused by fault increases oblique angle, thus the elastic force meeting of stainless steel elastic slice 322 in the end of carbon brush 33
There is part power to act on the transverse direction of carbon brush 33, carbon brush 33 is made to be close to 32 wall of side carbon brush holder, another carbon brush 33 and commutator 123
Contact portion increases Compensation Design, so that the frictional force generating unit component between carbon brush 33 and commutator 123 is acted on carbon brush 33, makes
It is close to ipsilateral carbon brush plate 31, avoids carbon brush 33 in carbon brush holder 32 due to the abnormal sound that vibration generates with this, meanwhile, carbon brush
33 are not directly connected to carbon brush holder 32, so that motor noise is greatly lowered, can more steady, quietly work, thoroughly
Solve 33 clamping stagnation of carbon brush, the big problem of noise.
Claims (4)
1. a kind of rain shaving electrical machine of noise-reduction includes electric machine casing, the magnetic shoe component being attached on electric machine casing inner wall, setting
Armature component in electric machine casing, the gear housing being interlocked with electric machine casing, the brush being attached on gear housing inner wall
Component is arranged in the intracorporal geared parts of gear hub, it is characterised in that: the armature component includes to be arranged in electric machine casing
Rotor shaft, the winding being wrapped in rotor shaft and the commutator being arranged in rotor shaft, the geared parts include
The gear that is arranged in gear housing is attached in gear housing wiring board corresponding with gear and is arranged on gear
With the gear shaft rod of gear-linked, the geared parts also include angular transducer, and the angular transducer includes that setting exists
With the multipole magnetic patch of gear rotation and setting in the circuit board for detecting magnetic field strength when multipole magnetic patch rotates on gear
Two Hall sensors of increment output directly proportional to angle step, the magnetic direction on the Hall sensor surface and gear
Axial direction is parallel.
2. a kind of rain shaving electrical machine of noise-reduction according to claim 1, it is characterised in that: the brush component includes
Carbon brush plate, carbon brush holder and the carbon brush being attached on gear housing inner wall, the carbon brush plate middle part are provided with commutator mounting hole, institute
It states commutator mounting hole periphery and is arranged three groups for carbon brush holder mounting hole, the carbon brush holder is connect with carbon brush holder mounting hole wedging, institute
It states carbon brush to be inclined in carbon brush holder, one end is connect with commutator, the other end and the stainless steel elastic slice being arranged in carbon brush holder
Connection, the stainless steel elastic slice are used to push against carbon brush side and carbon brush holder.
3. a kind of rain shaving electrical machine of noise-reduction according to claim 1, it is characterised in that: the multipole magnetic patch is by being arranged
In gear and be spacedly distributed several arctic, the South Pole composition.
4. a kind of rain shaving electrical machine of noise-reduction according to claim 2, it is characterised in that: the carbon brush plate is PC material
Matter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821908280.6U CN209057065U (en) | 2018-11-20 | 2018-11-20 | A kind of rain shaving electrical machine of noise-reduction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821908280.6U CN209057065U (en) | 2018-11-20 | 2018-11-20 | A kind of rain shaving electrical machine of noise-reduction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209057065U true CN209057065U (en) | 2019-07-02 |
Family
ID=67053918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821908280.6U Expired - Fee Related CN209057065U (en) | 2018-11-20 | 2018-11-20 | A kind of rain shaving electrical machine of noise-reduction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209057065U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109378942A (en) * | 2018-11-20 | 2019-02-22 | 瑞安市远翔电机制造有限公司 | A kind of rain shaving electrical machine of noise-reduction |
-
2018
- 2018-11-20 CN CN201821908280.6U patent/CN209057065U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109378942A (en) * | 2018-11-20 | 2019-02-22 | 瑞安市远翔电机制造有限公司 | A kind of rain shaving electrical machine of noise-reduction |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190702 Termination date: 20191120 |
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| CF01 | Termination of patent right due to non-payment of annual fee |