CN107546947A - Rare earth permanent magnet brushless direct current motor - Google Patents
Rare earth permanent magnet brushless direct current motor Download PDFInfo
- Publication number
- CN107546947A CN107546947A CN201710909452.5A CN201710909452A CN107546947A CN 107546947 A CN107546947 A CN 107546947A CN 201710909452 A CN201710909452 A CN 201710909452A CN 107546947 A CN107546947 A CN 107546947A
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- earth permanent
- rotor
- stator
- rare
- 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.)
- Pending
Links
Landscapes
- Brushless Motors (AREA)
Abstract
The invention discloses a kind of rare earth permanent magnet brushless direct current motor, including motor housing, central rotating shaft, stator, rotor and rare-earth permanent magnet, the central rotating shaft is provided with the rotor, the rare-earth permanent magnet is arranged on the internal rotor, the stator is on the motor housing inwall, air gap is provided between the stator and the rotor, position-detection sensor and Rotating speed measring sensor are provided with the air gap, the motor housing is provided with power pack, power module and DSP control circuits are provided with the power pack, the position-detection sensor is connected with the DSP control circuits, the Rotating speed measring sensor is connected with the DSP control circuits, the power module is connected with the magnet exciting coil, LED charactrons are embedded with the motor housing.By the above-mentioned means, the armature winding of motor internal can be replaced with rare-earth permanent magnet by the present invention, motor circuit structure is both simplified, has reduced the consumption of electric energy again.
Description
Technical field
The present invention relates to direct current generator field, more particularly to a kind of rare earth permanent magnet brushless direct current motor.
Background technology
Motor is divided into alternating current generator and direct current generator, and alternating current generator is similar with DC motor structure, and inside passes through stator
Carry out motor with the magnetic field mutual inductance active force of rotor to rotate, the winding on stator is referred to as magnet exciting coil, and the winding on rotor
Referred to as armature coil, such is the non-magneto of tradition, and the difference of magneto is that a wherein side being changed into rare earth forever
Magnet produces magnetic field, it is possible to reduce caused electric energy loss in coil, the specially iron loss of coil copper loss and iron core, in energy consumption
It is upper more to be saved than common non-magneto.
The content of the invention
, can be by motor internal the present invention solves the technical problem of a kind of rare earth permanent magnet brushless direct current motor is provided
Armature winding replace with rare-earth permanent magnet, both simplified motor circuit structure, reduced the consumption of electric energy again.
In order to solve the above technical problems, one aspect of the present invention is：It is straight to provide a kind of rare-earth permanent magnet brushless
Motor, including motor housing, central rotating shaft, stator, rotor and rare-earth permanent magnet are flowed, the central rotating shaft horizontal type is placed in described
Motor housing center of inside, the central rotating shaft are provided with the rotor, and the rare-earth permanent magnet is arranged on the internal rotor,
The N poles and S poles of the rare-earth permanent magnet are located at the both ends of the rotor respectively, and the stator is located at the motor housing inwall
On, air gap is provided between the stator and the rotor, the stator covers all around the rotor, if the stator is provided with
Dry group magnet exciting coil, the air gap is interior to be provided with position-detection sensor and Rotating speed measring sensor, and the motor housing is provided with
Power pack, the power pack is interior to be provided with power module and DSP control circuits, and the position-detection sensor controls with the DSP
Circuit is connected, and the Rotating speed measring sensor is connected with the DSP control circuits, the DSP control circuits and the power supply mould
Block is connected, and the power module is connected with the magnet exciting coil, and LED charactrons, the LED numbers are embedded with the motor housing
Code pipe is connected with the DSP control circuits.
In a preferred embodiment of the present invention, the motor housing surrounded surface protrusion is provided with fin.
In a preferred embodiment of the present invention, transformer and rectifier are provided with inside the power module.
In a preferred embodiment of the present invention, the position-detection sensor is Magnetic position detection sensor or light
Electric-type position-detection sensor.
The beneficial effects of the invention are as follows：The armature winding of motor internal is replaced with rare-earth permanent magnet by the present invention, is both simplified
Motor circuit structure, reduces the consumption of electric energy again, and DC brushless motor eliminates commutator, replaces work using multigroup excitation
Make generation magnetic field, cause rotor constantly to be rotated by electromagnetic force, caused by avoiding brush the problems such as loose contact, moreover it is possible to subtract
Few circuitous resistance rate, it is rare-earth permanent magnet that rotor is interior, it is possible to reduce the construction of armature circuit, greatly reduces disappearing for electric energy
Consumption.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, make required in being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings other
Accompanying drawing, wherein：
Fig. 1 is the structural representation of the preferred embodiment of rare earth permanent magnet brushless direct current motor one of the present invention；
Fig. 2 is the electrical block diagram of the preferred embodiment of rare earth permanent magnet brushless direct current motor one of the present invention
The mark of each part is as follows in accompanying drawing：1st, motor housing；2nd, central rotating shaft；3rd, stator；4th, rotor；5th, rare-earth permanent magnet；
6th, air gap；7th, magnet exciting coil；8th, position-detection sensor；9th, Rotating speed measring sensor；10th, power pack；11st, power module；12、
DSP control circuits；13rd, LED charactrons；14th, fin.
Embodiment
The technical scheme in the embodiment of the present invention will be clearly and completely described below, it is clear that described implementation
Example is only the part of the embodiment of the present invention, rather than whole embodiments.It is common based on the embodiment in the present invention, this area
All other embodiment that technical staff is obtained under the premise of creative work is not made, belong to the model that the present invention protects
Enclose.
Fig. 1 and Fig. 2 are referred to, the embodiment of the present invention includes：
A kind of rare earth permanent magnet brushless direct current motor, including motor housing 1, central rotating shaft 2, stator 3, rotor 4 and rare-earth permanent magnet
5, the horizontal type of central rotating shaft 2 is placed in the center of inside of motor housing 1, and the central rotating shaft 2 is provided with the rotor 4,
The rare-earth permanent magnet 5 is arranged on inside the rotor 4, and the N poles and S poles of the rare-earth permanent magnet 5 are located at the rotor 4 respectively
Both ends, the stator 3 is provided with air gap 6, institute on the inwall of motor housing 1 between the stator 3 and the rotor 4
State stator 3 and cover all around the rotor 4, the stator 3 is provided with some groups of magnet exciting coils 7, position is provided with the air gap 6
Detection sensor 8 and Rotating speed measring sensor 9, the motor housing 1 are provided with power pack 10, electricity are provided with the power pack 10
Source module 11 and DSP control circuits 12, the position-detection sensor 8 are connected with the DSP control circuits 12, the rotating speed inspection
Survey sensor 9 to be connected with the DSP control circuits 12, the DSP control circuits 12 are connected with the power module 11, the electricity
Source module 11 is connected with the magnet exciting coil 7, and LED charactrons 13, the LED charactrons 13 are embedded with the motor housing 1
It is connected with the DSP control circuits 12.
In addition, the surrounded surface of motor housing 1 protrusion is provided with fin 14.
In addition, the inside of power module 11 is provided with transformer and rectifier.
In addition, the position-detection sensor 8 is Magnetic position detection sensor or photoelectric type position detection sensor.
The horizontal type of rotating shaft 2 is placed in the center of inside of motor housing 1 centered on the operation principle of the present invention, is set on central rotating shaft 2
There is rotor 4, rare-earth permanent magnet 5 is arranged on inside rotor 4, and the N poles and S poles of rare-earth permanent magnet 5 are located at the both ends of rotor 4 respectively,
Stator 3 is provided with air gap 6, stator 3 covers all around rotor 4, stator 3 on the inwall of motor housing 1 between stator 3 and rotor 4
Some groups of magnet exciting coils 7 are provided with, magnet exciting coil 7 is that full copper coil winds stator composition, and coil electricity produces magnetic field.
Position-detection sensor 8 and Rotating speed measring sensor 9 are provided with air gap 6, position-detection sensor 8 is electromagnetic type position
Detection sensor or photoelectric type position detection sensor are put, motor housing 1 is provided with power pack 10, power supply is provided with power pack 10
Module 11 and DSP control circuits 12, is provided with transformer and rectifier in power module, the output for control voltage electric current and then
The rotatable property of controlled motor, position-detection sensor 8 are connected with DSP control circuits 12, and position sensor detects the position of rotor
Put, so as to control the electric energy of stator coil to supply, realize the generation and disappearance in regular control magnetic field, and then realize brushless
The function of motor.
Rotating speed measring sensor 9 is connected with DSP control circuits 12, and DSP control circuits 12 are connected with power module 11, power supply
Module 11 is connected with magnet exciting coil 7, and LED charactrons 13, LED charactrons 13 and DSP control circuits 12 are embedded with motor housing 1
Connection, charactron 13 show the current rotating speed of motor.
The shell of motor is provided with some fin 14, for dissipating heat caused by generator operation.
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair
The equivalent structure or equivalent flow conversion that bright description is made, or directly or indirectly it is used in other related technology necks
Domain, it is included within the scope of the present invention.
Claims (4)
1. a kind of rare earth permanent magnet brushless direct current motor, including motor housing, central rotating shaft, stator, rotor and rare-earth permanent magnet, its
It is characterised by, the central rotating shaft horizontal type is placed in the motor housing center of inside, and the central rotating shaft is provided with described turn
Son, the rare-earth permanent magnet are arranged on the internal rotor, and the N poles and S poles of the rare-earth permanent magnet are located at the rotor respectively
Both ends, the stator is provided with air gap, the stator on the motor housing inwall between the stator and the rotor
The rotor is covered all around, the stator is provided with some groups of magnet exciting coils, position-detection sensor is provided with the air gap
With Rotating speed measring sensor, the motor housing is provided with power pack, and power module and DSP control electricity are provided with the power pack
Road, the position-detection sensor are connected with the DSP control circuits, the Rotating speed measring sensor and DSP control electricity
Road is connected, and the DSP control circuits are connected with the power module, and the power module is connected with the magnet exciting coil, described
LED charactrons are embedded with motor housing, the LED charactrons are connected with the DSP control circuits.
2. rare earth permanent magnet brushless direct current motor according to claim 1, it is characterised in that the motor housing surrounded surface
Protrusion is provided with fin.
3. rare earth permanent magnet brushless direct current motor according to claim 1, it is characterised in that be provided with inside the power module
Transformer and rectifier.
4. rare earth permanent magnet brushless direct current motor according to claim 1, it is characterised in that the position-detection sensor is
Magnetic position detection sensor or photoelectric type position detection sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710909452.5A CN107546947A (en) | 2017-09-29 | 2017-09-29 | Rare earth permanent magnet brushless direct current motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710909452.5A CN107546947A (en) | 2017-09-29 | 2017-09-29 | Rare earth permanent magnet brushless direct current motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107546947A true CN107546947A (en) | 2018-01-05 |
Family
ID=60964998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710909452.5A Pending CN107546947A (en) | 2017-09-29 | 2017-09-29 | Rare earth permanent magnet brushless direct current motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107546947A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110120765A (en) * | 2019-04-30 | 2019-08-13 | 深圳市吉胜华力科技有限公司 | A kind of rareearth permanent-magnet DC generator |
| CN110336436A (en) * | 2019-08-07 | 2019-10-15 | 北京长远纵横科技开发有限公司 | A kind of perseverance function permanent-magnet brushless DC electric machine |
-
2017
- 2017-09-29 CN CN201710909452.5A patent/CN107546947A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110120765A (en) * | 2019-04-30 | 2019-08-13 | 深圳市吉胜华力科技有限公司 | A kind of rareearth permanent-magnet DC generator |
| CN110336436A (en) * | 2019-08-07 | 2019-10-15 | 北京长远纵横科技开发有限公司 | A kind of perseverance function permanent-magnet brushless DC electric machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101127461B (en) | Mixed excitation dual protruding pole brushless DC generator | |
| CN107276356B (en) | A kind of axial magnetic flux brushless hybrid excitation motor | |
| CN103560637B (en) | A kind of mixed excitation synchronous generator of high power density | |
| CN106787310B (en) | A kind of magnetic-field-enhanced Consequent pole permanent magnet motor | |
| CN106549547B (en) | A kind of mixing magnet steel magnetic flux switching memory electrical machine | |
| CN103730997A (en) | Excitation integrated type brushless synchronous motor | |
| KR101091436B1 (en) | Permanent magnet motor | |
| CN105305757A (en) | Double cross hybrid excitation motor | |
| CN105896833A (en) | Hybrid excitation three-phase brushless synchronous generator based on full wave induction excitation | |
| CN205693539U (en) | A kind of composite excitation three-phase brushless synchronous generator based on all-wave induced excitation | |
| CN107546947A (en) | Rare earth permanent magnet brushless direct current motor | |
| CN106451855A (en) | Consequent-pole permanent magnet motor | |
| CN102868246B (en) | High-capacity low-speed permanent-magnet wind-driven generator | |
| CN210111816U (en) | Novel permanent magnet excitation type generator with variable air gap magnetic flux density | |
| CN105576863B (en) | Stator uses the direct-cooled direct-drive motor of copper pipe structure | |
| CN103199671A (en) | Magnetic-electricity coupler | |
| CN102570656A (en) | Electric-excitation brushless starter generator (motor) | |
| CN202395551U (en) | Electric excitation brushless starting generator | |
| CN207251420U (en) | Rare earth permanent magnet brushless direct current motor | |
| WO2016086888A1 (en) | Novel super-powered electrical device | |
| CN209217918U (en) | A kind of engine direct drive generator with flywheel | |
| CN106787564A (en) | A kind of brushless hybrid excitation magneto based on harmonic exitation | |
| CN206332593U (en) | New and effective pair of excitation brushes hair motor | |
| CN105281524B (en) | A kind of brushless dual-feed motor | |
| CN102364843A (en) | Ultrahigh-energy generator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |