CN207801714U - A kind of permanent-magnet DC brushless micro machine - Google Patents
A kind of permanent-magnet DC brushless micro machine Download PDFInfo
- Publication number
- CN207801714U CN207801714U CN201820011273.XU CN201820011273U CN207801714U CN 207801714 U CN207801714 U CN 207801714U CN 201820011273 U CN201820011273 U CN 201820011273U CN 207801714 U CN207801714 U CN 207801714U
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- China
- Prior art keywords
- pole piece
- fixinig plate
- magnet
- bearing bracket
- rear end
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Abstract
The utility model discloses a kind of permanent-magnet DC brushless micro machines, including shell, drive end bearing bracket and rear end cap, the both ends of shell are respectively equipped with drive end bearing bracket and rear end cap, the side of drive end bearing bracket is equipped with fixed ring, the top of fixed ring is equipped with capacitance, the bottom of fixed ring is equipped with circuit board and driving chip, one end of fixed ring is equipped with the first fixinig plate and the second fixinig plate, the side of first fixinig plate and the side of the second fixinig plate are respectively equipped with the first pole piece and the second pole piece, third pole piece and the 4th pole piece are equipped between first pole piece and the second pole piece, one end of third pole piece and one end of the 4th pole piece are respectively equipped with third fixinig plate and the 4th fixinig plate.The utility model shell and the connection of drive end bearing bracket and rear end cap are even closer, and it is easy to disassemble repair, coil geometrical clamp prevents stator coil loose by wire casing fixed stator coils, increases the antivibration kinetic force of stator coil, and motor volume is small.
Description
Technical field
The utility model is related to technical field of motors, specially a kind of permanent-magnet DC brushless micro machine.
Background technology
Currently, general brush motor usually switches the electric current of input coil by the mechanical system of commutator and brush,
This brush motor usually switches over the electric current of input coil, this brush motor by the mechanical system of commutator and brush
Rotating speed relatively easily control, still, the loss of electric machine is often accelerated in the mechanical break-in of brush and commutator, and is easy to send out
Noise.With the progress of society and the development of science and technology, there is brshless DC motor, brshless DC motor is a kind of using electronics
Rectifier replaces the direct current generator of brush and commutator, and the structure that it has alternating current generator is simple, reliable for operation, easy to maintain etc.
Series of advantages, at the same it is high but also with the operational efficiency of direct current generator, without excitation loss and good speed adjustment features or to keep away simultaneously
Exempt from the various features such as the generation of mechanicalness noise.Therefore, brshless DC motor is widely used in including household electrical appliance
Every field.Common brshless DC motor mainly includes stator and rotor.Stator includes mainly the electronics iron core of cylindrical shape,
The stator winding that high strength enamelled wire turns to, and the insulator for insolated stator core and stator winding.Rotor is circle
The permanent magnet of tubular is placed among stator and its gap is separated by with stator.Stator winding on stator connects with external power supply, when
When external power supply is connected, current induced magnetic field on stator winding simultaneously attracts each other and mutually with the magnetic field in rotor permanent magnet
Repel, is rotated in the stator to generate electromagnetic torque driving rotor.Such brshless DC motor is of wide application general family
It can be applied in compressor, washing machine, electric fan etc. in electric product, but if necessary to production micro machine, but due to stator
This structure, the volume of motor cannot be reduced, be not suitable for micro machine, therefore we make this improvement, and the knot of motor
Structure is integral type, maintenance difficult when breaking down, and proposes a kind of permanent-magnet DC brushless micro machine.
Utility model content
It is larger to solve motor volume of the existing technology, and the defect of maintenance difficult, the utility model provide a kind of
Permanent-magnet DC brushless micro machine.
In order to solve the above-mentioned technical problem, the utility model provides the following technical solution：
A kind of permanent-magnet DC brushless micro machine of the utility model, including shell, drive end bearing bracket and rear end cap, the two of the shell
End is respectively equipped with drive end bearing bracket and rear end cap, and the side of the drive end bearing bracket is equipped with fixed ring, and the top of the fixed ring is equipped with capacitance,
The bottom of the fixed ring is equipped with circuit board and driving chip, and one end of the fixed ring is equipped with the first fixinig plate and second and fixes
Piece, the side of first fixinig plate and the side of the second fixinig plate are respectively equipped with the first pole piece and the second pole piece, and described first
Third pole piece and the 4th pole piece, one end of the third pole piece and one end of the 4th pole piece point are equipped between pole piece and the second pole piece
Not She You third fixinig plate and the 4th fixinig plate, the outer ring of first pole piece, the outer ring of the second pole piece, third pole piece outer ring
It is wound with stator coil with the outer ring of the 4th pole piece, the both ends of the stator coil are equipped with coil geometrical clamp, first pole
Piece, the second pole piece, third pole piece and the 4th pole piece inner ring be equipped with annular magnet, the inner ring and shaft of the annular magnet are interspersed
Connection, the both ends of the shaft are each passed through drive end bearing bracket and rear end cap is communicated with the external world, and the bottom of the shell is equipped with connector,
The driving chip passes sequentially through circuit board and connector and is electrically connected with external dc power, and the driving chip passes sequentially through
Capacitance and circuit board are electrically connected with stator coil.
Further, the both ends of the shell are equipped with the side of drive end bearing bracket junction and the side of rear end cap junction
Retainer plate, and two retainer plates are fixedly connected by pin with drive end bearing bracket and rear end cap respectively.
Further, first pole piece, the second pole piece, third pole piece and the 4th pole piece are combined as cylindrical shape.
Further, first pole piece, the second pole piece, third pole piece and the 4th pole piece are made of magnetic conductive material,
And first surface of pole piece, the surface of the second pole piece, the surface of third pole piece and the 4th pole piece surface apply insulated paint.
Further, two coil geometrical clamps are connected together by the both ends of two wire casings and stator coil respectively.
Further, the junction of the shaft and rear end cap is equipped with bearing.
Compared with prior art, the utility model has the advantages that：This kind of permanent-magnet DC brushless micro machine, shell
It is even closer with the connection of drive end bearing bracket and rear end cap, and it is easy to disassemble repair, coil geometrical clamp passes through wire casing fixed stator
Coil prevents stator coil loose, increases the antivibration kinetic force of stator coil, and motor volume is small.
Description of the drawings
Attached drawing is used to provide a further understanding of the present invention, and a part for constitution instruction, with this practicality
Novel embodiment for explaining the utility model, does not constitute limitations of the present invention together.In the accompanying drawings：
Fig. 1 is a kind of side structure schematic diagram of permanent-magnet DC brushless micro machine of the utility model；
Fig. 2 is a kind of side structure schematic diagram of permanent-magnet DC brushless micro machine coil geometrical clamp of the utility model；
Fig. 3 is a kind of side structure of permanent-magnet DC brushless micro machine third fixinig plate and the 4th fixinig plate of the utility model
Schematic diagram.
In figure：1, shell；2, drive end bearing bracket；3, rear end cap；4, fixed ring；5, capacitance；6, the first fixinig plate；7, stator line
Circle；8, the first pole piece；9, coil geometrical clamp；10, retainer plate；11, third fixinig plate；12, bearing；13, the 4th fixinig plate；14、
Second pole piece；15, annular magnet；16, the second fixinig plate；17, driving chip；18, circuit board；19, shaft；20, wire casing；21、
Third pole piece；22, the 4th pole piece.
Specific implementation mode
To make the technical means, creative features, achievement of purpose, and effectiveness of the utility model be easy to understand, below
In conjunction with specific implementation mode, the utility model is expanded on further.
As shown in Figs. 1-3, a kind of permanent-magnet DC brushless micro machine, including shell 1, drive end bearing bracket 2 and rear end cap 3, shell 1
Both ends are respectively equipped with drive end bearing bracket 2 and rear end cap 3, and the both ends of 3 closure 1 of drive end bearing bracket 2 and rear end cap, the side of drive end bearing bracket 2 is set
There are fixed ring 4, the top of fixed ring 4 to be equipped with capacitance 5, capacitance 5 prevents electric motor short circuit, the bottom of fixed ring 4 to be equipped with circuit board 18
With driving chip 17,4 fixed capacity 5 of fixed ring, circuit board 18 and driving chip 17 (driving IC), driving chip 17 (driving IC)
Control DC conversion is alternating current, and stator coil 7 is transferred to by circuit board 18, and stator coil 7 is made to generate magnetic field, fixed ring
4 one end is equipped with the first fixinig plate 6 and the second fixinig plate 16, the side point of the side of the first fixinig plate 6 and the second fixinig plate 16
Not She You the first pole piece 8 and the second pole piece 14, the first fixinig plate 6 and the second fixinig plate 16 fix the first pole piece 8 and second respectively
Pole piece 14, between the first pole piece 8 and the second pole piece 14 be equipped with third pole piece 21 and the 4th pole piece 22, one end of third pole piece 21 and
One end of 4th pole piece 22 is respectively equipped with third fixinig plate 11 and the 4th fixinig plate 13, third fixinig plate 11 and the 4th fixinig plate 13
Third pole piece 21 and the 4th pole piece 22 are fixed respectively, and the first pole piece 8, the second pole piece 14, third pole piece 21 and the 4th pole piece 22 are handed over
Mistake setting, the outer ring of the first pole piece 8, the outer ring of the second pole piece 14, the outer ring of third pole piece 21 and the 4th pole piece 22 outer ring twine
It is wound with stator coil 7, the first pole piece 8,22 fixed stator coils 7 of the second pole piece 14, third pole piece 21 and the 4th pole piece, stator line
The both ends of circle 7 are equipped with coil geometrical clamp 9, and two coil geometrical clamps 9 reinforce the both ends of stator coil 7, prevent stator
Coil 7 is loose, increases the antivibration kinetic force of stator coil 7, the first pole piece 8, the second pole piece 14, third pole piece 21 and the 4th pole piece
22 inner ring is equipped with annular magnet 15, inner ring and the interspersed connection of shaft 19 of annular magnet 15, in the magnetic field that stator coil 7 generates
Interior, annular magnet 15 is acted on by magnetic field, drives shaft 19 to rotate, the both ends of shaft 19 are each passed through drive end bearing bracket 2 and rear end
Lid 3 is communicated with the external world, and the bottom of shell 1 is equipped with connector, and driving chip 17 passes sequentially through circuit board 18 and connector and outside
DC power supply is electrically connected, and driving chip 17 passes sequentially through capacitance 5 and circuit board 18 and is electrically connected with stator coil 7, external straight
Galvanic electricity source connects motor by connector.
Wherein, the both ends of shell 1 and the side of 3 junction of side and rear end cap of 2 junction of drive end bearing bracket are equipped with fixation
Circle 10, and two retainer plates 10 are fixedly connected by pin with drive end bearing bracket 2 and rear end cap 3 respectively, motor passes through two retainer plates
The both ends of 10 pairs of shells 1 are reinforced with 2 junction of drive end bearing bracket and 3 junction of rear end cap, make shell 1 and drive end bearing bracket 2 and rear end
The connection of lid 3 is even closer.
Wherein, the first pole piece 8, the second pole piece 14, third pole piece 21 and the 4th pole piece 22 are combined as cylindrical shape, convenient for fixing
Stator coil 7, and do not interfere with rotor rotation.
Wherein, the first pole piece 8, the second pole piece 14, third pole piece 21 and the 4th pole piece 22 are made of magnetic conductive material, and
The surface of first pole piece 8, the surface of the second pole piece 14, the surface of third pole piece 21 and the 4th pole piece 22 surface apply insulation
Paint, the first pole piece 8, the second pole piece 14, third pole piece 21 and the 4th pole piece 22 are made complete with pole piece of magnetic conductive material
Week with insulated paint application, can increase the magnetic coupling between stator coil 7 and pole piece.
Wherein, two coil geometrical clamps 9 are connected together by the both ends of two wire casings 20 and stator coil 7 respectively, coil
Geometrical clamp 9 passes through 20 fixed stator coils 7 of wire casing.
Wherein, the junction of shaft 19 and rear end cap 3 is equipped with bearing 12, and bearing 12 prevents the rotation abrasion rear end cap of shaft 19
3。
It should be noted that the utility model is a kind of permanent-magnet DC brushless micro machine, and when specific works, 2 He of drive end bearing bracket
The both ends of 3 closure 1 of rear end cap, 4 fixed capacity 5 of fixed ring, circuit board 18 and driving chip 17 (driving IC), first fixes
Piece 6 and the second fixinig plate 16 fix the first pole piece 8 and the second pole piece 14, third fixinig plate 11 and the 4th fixinig plate 13 difference respectively
Fixed third pole piece 21 and the 4th pole piece 22, the first pole piece 8, the second pole piece 14, third pole piece 21 and the 4th pole piece 22 are staggeredly set
It sets, the first pole piece 8, the second pole piece 14, third pole piece 21 and the 4th pole piece 22 are combined as cylindrical shape, are convenient for fixed stator coils 7,
And rotor rotation is not interfered with, the first pole piece 8,22 fixed stator coils 7 of the second pole piece 14, third pole piece 21 and the 4th pole piece,
Coil geometrical clamp 9 prevents stator coil 7 loose, increases the antivibration kinetic energy of stator coil 7 by 20 fixed stator coils 7 of wire casing
Power, motor are reinforced the both ends of shell 1 with 2 junction of drive end bearing bracket and 3 junction of rear end cap by two retainer plates 10, are made
Shell 1 and the connection of drive end bearing bracket 2 and rear end cap 3 are even closer, and it is easy to disassemble repair, bearing 12 prevent shaft 19 rotate
Rear end cap 3 is worn, external dc power connects motor by connector, and capacitance 5 prevents the electric motor short circuit, (driving of driving chip 17
IC) control DC conversion is alternating current, and stator coil 7 is transferred to by circuit board 18, and stator coil 7 is made to generate magnetic field,
In the magnetic field that stator coil 7 generates, annular magnet 15 is acted on by magnetic field, drives shaft 19 to rotate, the first pole piece 8, second
Pole piece 14, third pole piece 21 and the 4th pole piece 22 are made with pole piece week of magnetic conductive material with insulated paint application, can
Increase the magnetic coupling between stator coil 7 and pole piece, motor volume is small, and by adjusting the first fixinig plate 6 and the second fixinig plate
16 at a distance from third fixinig plate 11 and the 4th fixinig plate 13, to increase the outputting torsion of motor.
The advantages of basic principles and main features and the utility model of the utility model have been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (6)
1. a kind of permanent-magnet DC brushless micro machine, including shell（1）, drive end bearing bracket（2）And rear end cap（3）, which is characterized in that it is described
Shell（1）Both ends be respectively equipped with drive end bearing bracket（2）And rear end cap（3）, the drive end bearing bracket（2）Side be equipped with fixed ring（4）, institute
State fixed ring（4）Top be equipped with capacitance（5）, the fixed ring（4）Bottom be equipped with circuit board（18）And driving chip（17）,
The fixed ring（4）One end be equipped with the first fixinig plate（6）With the second fixinig plate（16）, first fixinig plate（6）Side
With the second fixinig plate（16）Side be respectively equipped with the first pole piece（8）With the second pole piece（14）, first pole piece（8）With second
Pole piece（14）Between be equipped with third pole piece（21）With the 4th pole piece（22）, the third pole piece（21）One end and the 4th pole piece
（22）One end be respectively equipped with third fixinig plate（11）With the 4th fixinig plate（13）, first pole piece（8）Outer ring, the second pole
Piece（14）Outer ring, third pole piece（21）Outer ring and the 4th pole piece（22）Outer ring be wound with stator coil（7）, the stator
Coil（7）Both ends be equipped with coil geometrical clamp（9）, first pole piece（8）, the second pole piece（14）, third pole piece（21）With
4th pole piece（22）Inner ring be equipped with annular magnet（15）, the annular magnet（15）Inner ring and shaft（19）Interspersed connection,
The shaft（19）Both ends be each passed through drive end bearing bracket（2）And rear end cap（3）It is communicated with the external world, the shell（1）Bottom set
There are connector, the driving chip（17）Pass sequentially through circuit board（18）It is electrically connected with connector and external dc power, institute
State driving chip（17）Pass sequentially through capacitance（5）And circuit board（18）With stator coil（7）It is electrically connected.
2. a kind of permanent-magnet DC brushless micro machine according to claim 1, which is characterized in that the shell（1）Both ends
With drive end bearing bracket（2）The side of junction and rear end cap（3）The side of junction is equipped with retainer plate（10）, and two retainer plates
（10）Pass through pin and drive end bearing bracket respectively（2）And rear end cap（3）It is fixedly connected.
3. a kind of permanent-magnet DC brushless micro machine according to claim 1, which is characterized in that first pole piece（8）,
Two pole pieces（14）, third pole piece（21）With the 4th pole piece（22）It is combined as cylindrical shape.
4. a kind of permanent-magnet DC brushless micro machine according to claim 1, which is characterized in that first pole piece（8）,
Two pole pieces（14）, third pole piece（21）With the 4th pole piece（22）It is made of magnetic conductive material, and the first pole piece（8）Surface,
Second pole piece（14）Surface, third pole piece（21）Surface and the 4th pole piece（22）Surface apply insulated paint.
5. a kind of permanent-magnet DC brushless micro machine according to claim 1, which is characterized in that two coil geometrical clamps
（9）Pass through two wire casings respectively（20）With stator coil（7）Both ends be connected together.
6. a kind of permanent-magnet DC brushless micro machine according to claim 1, which is characterized in that the shaft（19）With rear end
Lid（3）Junction be equipped with bearing（12）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820011273.XU CN207801714U (en) | 2018-01-04 | 2018-01-04 | A kind of permanent-magnet DC brushless micro machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820011273.XU CN207801714U (en) | 2018-01-04 | 2018-01-04 | A kind of permanent-magnet DC brushless micro machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207801714U true CN207801714U (en) | 2018-08-31 |
Family
ID=63277400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820011273.XU Expired - Fee Related CN207801714U (en) | 2018-01-04 | 2018-01-04 | A kind of permanent-magnet DC brushless micro machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207801714U (en) |
-
2018
- 2018-01-04 CN CN201820011273.XU patent/CN207801714U/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: 20180831 Termination date: 20190104 |