CN206559201U - Brshless DC motor with carbon brush electric installation - Google Patents
Brshless DC motor with carbon brush electric installation Download PDFInfo
- Publication number
- CN206559201U CN206559201U CN201720119627.8U CN201720119627U CN206559201U CN 206559201 U CN206559201 U CN 206559201U CN 201720119627 U CN201720119627 U CN 201720119627U CN 206559201 U CN206559201 U CN 206559201U
- Authority
- CN
- China
- Prior art keywords
- carbon brush
- hole
- electric installation
- post portion
- conducting ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a kind of brshless DC motor with carbon brush electric installation, including housing, stator, armature spindle, conducting ring, carbon brush electric installation, armature spindle, conducting ring and carbon brush electric installation are assemblied in housing, carbon brush electric installation includes carbon brush, brush carrier and carbon brush plate, brush carrier is fixed on carbon brush plate, carbon brush is fixed in brush carrier, a part for carbon brush exposes to brush carrier, conducting ring is mutually pivotally abutted with carbon brush, it is electrically connected to each other between carbon brush and housing, armature spindle passes through stator, conducting ring and carbon brush plate.When producing voltage difference between stator and rotor, voltage can be conducted to conducting ring by armature spindle, and then is conducted by carbon brush to electric machine casing, so that the voltage maintained between rotor and stator is equal, it is to avoid motor component is damaged.
Description
Technical field
The utility model is related to technical field of motors, more particularly, to a kind of brushless dc with carbon brush electric installation
Machine.
Background technology
Motor operationally, connect after AC power, and line crosses the current induced magnetic field of pitch of the laps, and rotor is in the magnetic field by coil
Effect is lower to be rotated, so as to drive the output shaft being fixedly connected with the rotor also to be rotated, outwards transmits power.
There is certain voltage difference between the rotor and stator of motor, existing motor is in meeting because of the environment or operating mode of work
The reason for and cause motor armature spindle can be sensed high-tension electricity (high-tension electricity be other acting purposes, with motor operation electricity
Pressure is unrelated) so that rotor can be made to be discharged by steel ball ball bearing to stator.And electricity decorations phenomenon can be produced during electric discharge, enter
And damage motor.
Utility model content
Main purpose of the present utility model is to provide a kind of brshless DC motor with carbon brush electric installation.
To achieve the above object, the utility model provides a kind of brshless DC motor with carbon brush electric installation, including
Housing, stator, armature spindle, conducting ring, carbon brush electric installation, stator, armature spindle, conducting ring and carbon brush electric installation are assemblied in
In housing.Stator includes stator center hole, and stator center hole position is in the center of stator, and stator center hole is circular hole.Carbon brush is conductive
Device includes carbon brush, brush carrier and carbon brush plate, and brush carrier is fixed on carbon brush plate, and carbon brush is fixed in brush carrier, and a part for carbon brush is outer
It is exposed to brush carrier.Conducting ring is mutually pivotally abutted with carbon brush, and mutual electric lead connection between carbon brush and housing, conducting ring includes
Centre bore, carbon brush plate is provided with centre bore, and armature spindle passes through stator center hole, centre bore and plate centre bore, and armature spindle is cylinder axis,
Centre bore and plate centre bore are circular hole, and armature spindle, stator center hole, centre bore and plate centre bore are to be coaxially disposed, brush carrier
Along plate centre bore circumferentially on carbon brush plate.Conducting ring is shaped as stepped cylinder body, and carbon brush plate is shaped as circle
Ring-type.
When producing voltage difference between such scheme, stator and rotor, voltage can be conducted by armature spindle to conduction
Ring, and then conducted by carbon brush to electric machine casing, so that the voltage maintained between rotor and stator is equal, it is to avoid motor component
It is damaged.
One preferred scheme is, the quantity at least two of brush carrier.
As can be seen here, it is easy to improve electrical efficiency.
One preferred scheme is, the quantity at least two of carbon brush.
As can be seen here, it is easy to improve electrical efficiency.
One preferred scheme is that conducting ring includes the first post portion and the second post portion, end of the second post portion from the first post portion
Direction extension of the face along the central axis of armature spindle, the radius in the first post portion is more than the radius in the second post portion.
As can be seen here, above-mentioned scheme is easy to assemble conducting ring.
One preferred scheme is that the first post portion includes the first hole, and the first post portion is run through in the first hole.
As can be seen here, it is easy to assemble armature spindle.
One preferred scheme is that the second post portion includes the second hole, including the second post portion is run through in the second hole.
As can be seen here, it is easy to assemble armature spindle.
One preferred scheme is that the first hole and the second hole organization center hole, the first hole are interconnected with the second hole, first
Hole is to be coaxially disposed with the second hole.
As can be seen here, processing conducting ring can be easy to and be easy to assemble armature spindle.
One preferred scheme is that the material of conducting ring is the conductive carbon materials of self-lubricating.
As can be seen here, it is easy to conduction, reduces conducting ring manufacture difficulty.
One preferred scheme is that the material of conducting ring is copper.
As can be seen here, it is easy to conduction.
Brief description of the drawings
Fig. 1 is the structure chart after the utility model embodiment cutting shell.
Fig. 2 is the structure decomposition figure of the utility model embodiment.
Fig. 3 is the structure chart of the utility model embodiment conducting ring.
Fig. 4 is the structure chart of the utility model embodiment carbon brush plate.
Fig. 5 is the structure chart of the utility model embodiment carbon brush.
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Embodiment
Referring to Fig. 1 and Fig. 2, the brshless DC motor 10 with carbon brush electric installation include housing, stator 3, armature spindle 4,
Conducting ring 2, carbon brush electric installation 1 and output shaft 9, armature spindle 4 are cylinder axis, and housing includes protecgulum 8, front shroud 6, bonnet 5 with after
Cover 7, the central axis of protecgulum 8, front shroud 6, bonnet 5 with back cover 7 along armature spindle 4 is fixedly connected sequentially, stator 3, armature spindle 4,
Conducting ring 2, carbon brush electric installation 1 are assemblied in housing.Stator 3 includes stator center hole, and stator center hole position is in stator
Center, stator center hole is circular hole.It is electrically connected to each other between carbon brush 15 and housing by wire, conducting ring 2 and carbon brush 15 are mutual
Rotationally abut, the friction between conducting ring 2 and carbon brush 15 is sliding friction.
Referring to Fig. 3, conducting ring 2 is shaped as stepped cylinder body, and the material of conducting ring 2 can be the conductive carbon of self-lubricating
Material or copper.In the present embodiment, the conductive carbon materials of the material selection self-lubricating of conducting ring 2.Conducting ring 2 includes the first post portion
21 and the second post portion 22, the first post portion 21 and the second post portion 22 are cylinder, and the radius in the first post portion 21 is more than the second post portion
22 radius, the first post portion 21 and the second post portion 22 is are coaxially disposed, and the second post portion 22 is from the end face in the first post portion 21 along turning
The central axis extension of sub- axle.In the present embodiment, on the direction of the central axis of armature spindle, the length in the first post portion 21
Less than the length in the second post portion 22.First hole 23 that has been internally formed in the first post portion 21, the first hole 23 is circular hole, the first hole 23
Through the first post portion 21, the first hole 23 is to be coaxially disposed with the first post portion 21.The second hole has been internally formed in the second post portion 22
24, the second hole 24 is circular hole, and the second post portion 22 is run through in the second hole 24, and the second hole 24 is to be coaxially disposed with the second post portion 22.First
The hole 24 of hole 23 and second is interconnected, the first hole 23 and the organization center hole 25 of the second hole 24.In the present embodiment, conducting ring 2 leads to
Integrally formed manufacture method is crossed to obtain.
Referring to Fig. 4 and Fig. 5, carbon brush electric installation 1 includes carbon brush 15, brush carrier 12 and carbon brush plate 11, and brush carrier 12 is fixed on carbon
On brush board 11.In the present embodiment, brush carrier 12 is obtained with carbon brush plate 11 by integrally formed manufacture method.Carbon brush 15 is fixed
In in brush carrier 12, a part for carbon brush 15 exposes to brush carrier 12 with so that carbon brush 15 is abutted with conducting ring 2.Each brush carrier 12 is built-in
Equipped with a carbon brush 15.In the present embodiment, carbon brush 15 is combined into interference fit with matching somebody with somebody for brush carrier 12.In the middle heart of carbon brush plate 11
Into there is plate centre bore 13, plate centre bore 13 is circular hole, and plate centre bore 13 is to be coaxially disposed with the first hole 23.The shape of carbon brush plate 11
For annular shape.Brush carrier 12 is arranged circumferentially on carbon brush plate 11 along plate centre bore 13.In the present embodiment, brush carrier 12
Two are selected with the quantity of carbon brush 15, two relative directions of brush carrier 12 are the radial direction of carbon brush plate 11.The shape of carbon brush 15
For cuboid, FX is internally formed in brush carrier 12, the shape of FX is consistent with the shape of carbon brush 15.
Armature spindle 4, centre bore 25, plate centre bore 13 and stator center hole are to be coaxially disposed, and armature spindle 4 passes through centre bore
25th, plate centre bore 13 and stator center hole.Bonnet 5 is fixed in one end of armature spindle, and the other end is fixed on protecgulum 8 and and output shaft
9 are mutually permanently connected.When motor 10 works, armature spindle 4 rotates to drive output shaft 9 to rotate, and then defeated to the outside of motor 10
Go out power.
When motor 10 works, high voltage is produced between stator 3 and armature spindle 4.Now, the height electricity that armature spindle 4 is sensed
Pressure is conducted to conducting ring 2.Because carbon brush 15 is abutted with the second post portion 22 of conducting ring 2, high voltage conducts to carbon brush therewith.Carbon brush
Electrically connected between 15 and housing by wire formation, high voltage is therefore conducted to housing.Therefore, the rotor of motor 10 is kept
Part is equal with stator component voltage, and then avoids high voltage from discharging to protect bearing by bearing, it is to avoid electricity adorns going out for phenomenon
It is existing, extend the service life of motor 10.
Finally it is emphasized that the utility model is not limited to above-mentioned embodiment, the utility model the foregoing is only
Preferred embodiment, it is all within spirit of the present utility model and principle not to limit the utility model, made
Any modification, equivalent substitution and improvements etc., should be included within protection domain of the present utility model.
Claims (10)
1. a kind of brshless DC motor with carbon brush electric installation, it is characterised in that：Including
Housing, stator, armature spindle, conducting ring, carbon brush electric installation, the stator, the armature spindle, the conducting ring with it is described
Carbon brush electric installation is assemblied in the housing；
The stator includes stator center hole, and the stator center hole position is in the center of the stator, the stator center hole
Circular hole；The carbon brush electric installation includes carbon brush, brush carrier and carbon brush plate, and the brush carrier is fixed on the carbon brush plate, the carbon
Brush is fixed in the brush carrier, and a part for the carbon brush exposes to the brush carrier；
The conducting ring is mutually pivotally abutted with the carbon brush, and mutual electric lead connects between the carbon brush and the housing
Connect, the conducting ring include centre bore, the carbon brush plate be provided with plate centre bore, the armature spindle through the stator center hole,
The centre bore and the plate centre bore, the armature spindle are cylinder axis, and the centre bore and the plate centre bore are circular hole,
The armature spindle, the stator center hole, the centre bore and the plate centre bore are to be coaxially disposed, and the brush carrier is along institute
State plate centre bore circumferentially on the carbon brush plate；
The conducting ring is shaped as stepped cylinder body, and the carbon brush plate is shaped as annular shape.
2. the brshless DC motor according to claim 1 with carbon brush electric installation, it is characterised in that：
The quantity at least two of the brush carrier.
3. the brshless DC motor according to claim 2 with carbon brush electric installation, it is characterised in that：
The quantity at least two of the carbon brush.
4. the brshless DC motor according to claim 1 with carbon brush electric installation, it is characterised in that：
The conducting ring includes the first post portion and the second post portion, and the second post portion is from the end face in the first post portion along described
The direction extension of the central axis of armature spindle, the radius in the first post portion is more than the radius in the second post portion.
5. the brshless DC motor according to claim 4 with carbon brush electric installation, it is characterised in that：
The first post portion is to be coaxially disposed with the second post portion.
6. the brshless DC motor according to claim 5 with carbon brush electric installation, it is characterised in that：
The first post portion includes the first hole, and the first post portion is run through in first hole.
7. the brshless DC motor according to claim 6 with carbon brush electric installation, it is characterised in that：
The second post portion includes the second hole, including the second post portion is run through in the second hole.
8. the brshless DC motor according to claim 7 with carbon brush electric installation, it is characterised in that：
First hole constitutes the centre bore with second hole, and first hole is interconnected with second hole, described
First hole is to be coaxially disposed with second hole.
9. the brshless DC motor with carbon brush electric installation according to any one of claim 1 to 8, it is characterised in that：
The material of the conducting ring is the conductive carbon materials of self-lubricating.
10. the brshless DC motor with carbon brush electric installation according to any one of claim 1 to 8, it is characterised in that：
The material of the conducting ring is copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720119627.8U CN206559201U (en) | 2017-02-08 | 2017-02-08 | Brshless DC motor with carbon brush electric installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720119627.8U CN206559201U (en) | 2017-02-08 | 2017-02-08 | Brshless DC motor with carbon brush electric installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206559201U true CN206559201U (en) | 2017-10-13 |
Family
ID=60011110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720119627.8U Expired - Fee Related CN206559201U (en) | 2017-02-08 | 2017-02-08 | Brshless DC motor with carbon brush electric installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206559201U (en) |
-
2017
- 2017-02-08 CN CN201720119627.8U patent/CN206559201U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171013 Termination date: 20210208 |