CN206023533U - A kind of low-cost and high-performance brshless DC motor encoder - Google Patents
A kind of low-cost and high-performance brshless DC motor encoder Download PDFInfo
- Publication number
- CN206023533U CN206023533U CN201620841140.6U CN201620841140U CN206023533U CN 206023533 U CN206023533 U CN 206023533U CN 201620841140 U CN201620841140 U CN 201620841140U CN 206023533 U CN206023533 U CN 206023533U
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- China
- Prior art keywords
- motor
- brshless
- shell
- cost
- low
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Abstract
This utility model is related to motor encoder technical field, and in particular to a kind of low-cost and high-performance brshless DC motor encoder, this utility model include：The shell that mutually fixes with the stator of motor, is provided with signal processing circuit board in the shell, be provided with the linear magneto sensor of more than three on the signal processing circuit board；Magnet ring is installed on the rotor of the motor, in the magnet ring, is provided with more than one pair of north and south magnetic pole；The linear magneto sensor is arranged at the outside or inner side of magnet ring, for being acquired by its magnetic signal；The signal processing circuit board is connected with binding post by cable, and which is used for all magnetic signals for collecting into binding post；This utility model adopts linear magneto-dependent sensor, and reaction magnetic ring is consistent with motor pole number, sine wave output, and drive circuit is simple, low cost, and positioning precision is high.
Description
Technical field
This utility model is related to motor encoder technical field, and in particular to a kind of low-cost and high-performance brshless DC motor
Encoder.
Background technology
On current brshless DC motor, which can generally individually be provided with motor encoder, to enter to the position of its rotor and rotating speed
Row measurement, and existing motor encoder typically adopts photoelectric encoder and switch Hall sensor as sensor device；But adopt
With photoelectric encoder, there is expensive, easily failure and the shortcomings of complicated drive control circuit in which；And adopt switch Hall to pass
Sensor, its exported for square wave, the position signalling in the range of a circle is few, and therefore positioning precision is poor.
Content of the invention
For overcoming drawbacks described above, the purpose of this utility model to be to provide a kind of low-cost and high-performance brshless DC motor
Encoder.
The purpose of this utility model is achieved through the following technical solutions：
This utility model is a kind of low-cost and high-performance brshless DC motor encoder, and which is engaged with motor, including：With
The shell that the stator of motor is mutually fixed, is provided with signal processing circuit board in the shell, installs on the signal processing circuit board
There is the linear magneto sensor of more than three；Magnet ring is installed on the rotor of the motor, is provided with the magnet ring more than one pair of
North and south magnetic pole；The linear magneto sensor is arranged at the outside or inner side of magnet ring, for being acquired by its magnetic signal；
The signal processing circuit board is connected with binding post by cable, and which is used for all magnetic signals for collecting to connecing
In line terminals.
Further, the quantity of the linear magneto sensor is three, and the distance between adjacent linear magneto sensor phase
Deng.
Further, the inside the shell embedding has epoxide-resin glue.
Further, the shell by plus fiber nylon material constitute.
Further, the shell is provided with four installing holes.
Further, the binding post is arranged at the outside of the shell.
This utility model adopts linear magneto-dependent sensor, and reaction magnetic ring is consistent with motor pole number, sine wave output, drives electricity
Road is simple, low cost, and positioning precision is high.
Description of the drawings
For ease of explanation, this utility model is described in detail by following preferred embodiments and accompanying drawing.
Fig. 1 is overall structure diagram of the present utility model；
Fig. 2 is the position relationship schematic diagram of the magnet ring in this utility model and linear magneto sensor；
The signal waveforms that Fig. 3 is collected by linear magneto sensor of the present utility model.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and enforcement
Example, further describes to this utility model.It should be appreciated that specific embodiment described herein is only in order to explaining this reality
With new, it is not used to limit this utility model.
Fig. 1 to Fig. 3 is referred to, low-cost and high-performance brshless DC motor encoder of the present utility model, itself and motor phase
Coordinate, including：The shell 6 that mutually fixes with the stator of motor, is provided with signal processing circuit board 5, at the signal in the shell 6
The linear magneto sensor of more than three is installed on reason circuit board 5, which is respectively the first linear magnetosensitive unit 2, the second linear magnetosensitive
Unit 3 and third linear magnetosensitive unit 4；Magnet ring 10 is installed on the rotor of the motor, is provided with the magnet ring 10 more than one pair of
North and south magnetic pole；Three linear magneto sensors 2,3,4 may be contained within the outside or inner side of magnet ring 10, for by its magnetic signal
It is acquired；The signal processing circuit board 5 is connected with binding post 8 by cable 1, and which is used for all magnetic for collecting
Signal transmission is into binding post 8.Shell 6 in this utility model on electric motor end cap, need not transform, using non-by motor
Often convenient, more economical, positioning precision is high, and motor operation is balanced, and vibration and noise are little.
Further, the quantity of the linear magneto sensor is three, and the distance between adjacent linear magneto sensor phase
Deng.
Further, in the shell 6, embedding has epoxide-resin glue 7.
Further, the shell 6 by plus fiber nylon material constitute.
Further, the shell 6 is provided with four installing holes 9.
Further, the binding post 8 is arranged at the outside of the shell 6.
The operation principle of this low-cost and high-performance brshless DC motor encoder is using linear magneto sensor, to magnet ring 10
In the sent magnetic signal of north and south magnetic pole be acquired, often collect a pair of north and south magnetic poles, linear magneto sensor just exports one
Sinusoidal signal, can neatly according to the electrical angle of the number of poles and three Halls of the selection of number of poles magnet ring of brshless DC motor.Such as
By taking the DC brushless motor of a pair of magnetic poles as an example, three linear magneto sensors are installed in the way of differing 120 ° of electrical angles each other
On stator, the magnet ring on rotor rotates one and encloses, and linear magneto sensor exports three consistent phase places of amplitude
120 ° of sine wave is differed from, any change of rotor-position changes all can linear magneto sensor output signal, so as to obtain rotor
Position, rotating speed etc..
Preferred embodiment of the present utility model is the foregoing is only, not in order to limit this utility model, all at this
Any modification, equivalent and improvement that is made within the spirit and principle of utility model etc., should be included in this utility model
Protection domain within.
Claims (6)
1. a kind of low-cost and high-performance brshless DC motor encoder, which is engaged with motor, it is characterised in that included：With electricity
The shell that the stator of machine is mutually fixed, is provided with signal processing circuit board in the shell, is provided with the signal processing circuit board
The linear magneto sensor of more than three；Magnet ring is installed on the rotor of the motor, in the magnet ring, is provided with more than one pair of south
North magnetic pole；The linear magneto sensor is arranged at the outside or inner side of magnet ring, for being acquired by its magnetic signal；Institute
State signal processing circuit board to be connected with binding post by cable, which is used for all magnetic signals for collecting to wiring
In terminal.
2. low-cost and high-performance brshless DC motor encoder according to claim 1, it is characterised in that the linear magnetic
The quantity of quick element is three, and the distance between adjacent linear magneto sensor is equal.
3. low-cost and high-performance brshless DC motor encoder according to claim 2, it is characterised in that the inside the shell
Embedding has epoxide-resin glue.
4. low-cost and high-performance brshless DC motor encoder according to claim 3, it is characterised in that the shell by
Plus fiber nylon material composition.
5. low-cost and high-performance brshless DC motor encoder according to claim 4, it is characterised in that on the shell
It is provided with four installing holes.
6. low-cost and high-performance brshless DC motor encoder according to claim 5, it is characterised in that the terminals
Son is arranged at the outside of the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620841140.6U CN206023533U (en) | 2016-08-04 | 2016-08-04 | A kind of low-cost and high-performance brshless DC motor encoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620841140.6U CN206023533U (en) | 2016-08-04 | 2016-08-04 | A kind of low-cost and high-performance brshless DC motor encoder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206023533U true CN206023533U (en) | 2017-03-15 |
Family
ID=58246523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620841140.6U Expired - Fee Related CN206023533U (en) | 2016-08-04 | 2016-08-04 | A kind of low-cost and high-performance brshless DC motor encoder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206023533U (en) |
-
2016
- 2016-08-04 CN CN201620841140.6U patent/CN206023533U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170315 Termination date: 20200804 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |