CN108242868A - A kind of external gyrator channel sensor of permanent magnet motor - Google Patents
A kind of external gyrator channel sensor of permanent magnet motor Download PDFInfo
- Publication number
- CN108242868A CN108242868A CN201611211003.5A CN201611211003A CN108242868A CN 108242868 A CN108242868 A CN 108242868A CN 201611211003 A CN201611211003 A CN 201611211003A CN 108242868 A CN108242868 A CN 108242868A
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- Prior art keywords
- permanent magnet
- rotating disc
- magnet motor
- disc
- fixed
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Abstract
The present invention relates to permanent magnet motor fields, a kind of external gyrator channel sensor of permanent magnet motor are disclosed, including round barrel cover, magnet rotors disk and fixed disc.Magnet rotors disk by rotating disc and permanent magnet group into；Permanent magnet is fixed on along rotating disc axial charging and decile using rotating disc axle center as on a circle in the center of circle；The axle center of rotating disc is equipped with shaft hole；The axle center of fixed disc is equipped with mounting hole, and fixed disc is equipped with signal amplification circuit plate；Rotating disc is set in round barrel cover, and fixed disc is placed on round barrel cover and is fixed with the housing of permanent-magnet electric；The shaft of permanent magnet motor passes through mounting hole and is connect with the shaft hole of rotating disc.Signal transducer of the present invention is set to the outside of permanent magnet motor, and operating temperature is low, and installs, dismantle, is easy to maintain.The signal of output rapidly can be passed to miscellaneous equipment and calculate rotor permanent magnet position and calculating motor rotor rotating speed by it.High sensitivity, reaction are fast, and stable output signal is reliable.
Description
Technical field
The present invention relates to a kind of external gyrator channel of permanent magnet motor field more particularly to permanent magnet motor sensings
Device.
Background technology
With the enhancing of environmental consciousness, electric vehicle has obtained significant progress in recent years, therefore permanent magnet motor also exists
It is continuously improved.The motion state of permanent magnet motor is accurately controlled, needs to know the real-time rotor-position signal of motor, because
This traditional permanent magnet motor is generally using additional position sensor, for detecting rotor-position.Such as application No. is
The Chinese patent of CN201620082322.X discloses a kind of DC synchronous permanent magnet motor, the DC synchronous permanent magnet motor
Including door, motor shaft, controller and position sensor after door, motor casing before motor casing, motor casing, set on the motor casing
There is wiring group；The motor shaft is equipped with PM rotor, and the PM rotor is equipped with stator winding；The position sensing
Device is set on the inside of the motor casing, for obtaining the location information of PM rotor.
But existing position sensor is arranged on permanent magnet motor enclosure interior, built-in position sensor temperature compared with
Height is easily affected, and install, dismantle, safeguard it is not enough convenient.
Invention content
In order to solve the above technical problem, the present invention provides a kind of external gyrator channel sensings of permanent magnet motor
Device.The external gyrator channel sensor of the permanent magnet motor of the present invention is set to the outside of permanent magnet motor, and operating temperature is low,
And it installs, dismantle, is easy to maintain quick.The signal of output rapidly can be passed to miscellaneous equipment and calculate rotor permanent magnet by it
Position and calculating motor rotor rotating speed.High sensitivity, reaction are fast, and stable output signal is reliable.
The specific technical solution of the present invention is：A kind of external gyrator channel sensor of permanent magnet motor, feature exist
In：Including round barrel cover, magnet rotors disk and fixed disc.
The magnet rotors disk by rotating disc and several permanent magnet groups into；The permanent magnet along rotating disc axial charging, and
Permanent magnet decile is fixed on using the rotating disc axle center as on a circle in the center of circle, the number of the permanent magnet Permanent Magnet and Electric mating with it
The number of pole-pairs of the rotor permanent magnet of motivation is equal, and the position of permanent magnet is identical with polarity multiple on the permanent magnet motor
The position of rotor permanent magnet corresponds；Shaft hole is equipped at the axle center of rotating disc.
Mounting hole is equipped at the axle center of the fixed disc, fixed disc is equipped with signal amplification circuit plate, the signal
The integral multiple that magnification circuit plate is equipped with the amplifier circuit unit of multiple parallel connections and its quantity is the mating permanent magnet motor number of phases.
Rotating disc be set on the round barrel cover in, fixed disc be covered in the opening of round barrel cover and fixed disc with it is mating
The housing of permanent magnet motor is fixed；Round barrel cover, rotating disc and fixed disc are coaxial, and the shaft of permanent magnet motor passes through the installation
The shaft hole connection of Kong Bingyu rotating discs, shaft and rotating disc synchronous rotary.
Preferably, each amplifier circuit unit includes Hall sensor, the first pull-up resistor, the second pull-up electricity
Resistance, field-effect tube and signal output end；Wherein, the Hall sensor is imitated respectively with direct current anode, direct current cathode and field
Should pipe grid connection, the grid of the both ends of the first pull-up resistor respectively with direct current anode and field-effect tube connect, field-effect
The source electrode of pipe is connect with direct current cathode, field-effect tube drain electrode respectively with one end of the second pull-up resistor and signal output end
Connection, the other end of the second pull-up resistor are connect with direct current anode.
Preferably, multiple Hall sensor tilings are arranged in a row and are welded on signal amplification circuit plate, it is multiple
The entirety that Hall sensor is formed is in sector, the angle phase between the angle of the sector and two adjacent permanent magnets on rotating disc
Deng the circular arc between the circular arc of the sector and two adjacent permanent magnets on rotating disc overlaps.
Preferably, the circumferential edge of the fixed disc, along screw hole is equipped with, fixed disc is by being set on the screw hole
Interior screw is fixed on the housing of round barrel cover and permanent magnet motor.
Preferably, the quantity of the permanent magnet is four；The quantity of the amplifier circuit unit is six.
Preferably, the permanent magnet is cylinder.
The principle of the present invention is：Rotating disc rotates together with the shaft of permanent magnet motor, when the permanent magnet on rotating disc turns
To Hall sensor position when, Hall sensor is under the action of the magnetic field of permanent magnet, and multiple Hall sensors are pressed and permanent magnetism
Iron overlaps sequencing and is sequentially output signal, carries out power amplification by field-effect tube, the signal of amplification is defeated from signal output end
Go out.In the present invention, Hall sensor high sensitivity, reaction are fast, and the signal of Hall sensor output is put through field-effect tube power
After big, the signal stabilization of signal output end output is reliable；The signal of output passes to miscellaneous equipment and calculates rotor permanent magnet position
With calculating motor rotor rotating speed.
It is compared with the prior art, the beneficial effects of the invention are as follows：The external gyrator channel of the permanent magnet motor of the present invention
Sensor is set to the outside of permanent magnet motor, and operating temperature is low, and installs, dismantles, is easy to maintain quick.It can be rapidly
The signal of output is passed to miscellaneous equipment and calculates rotor permanent magnet position and calculating motor rotor rotating speed.It is high sensitivity, anti-
Should be fast, stable output signal is reliable.
Description of the drawings
Fig. 1 is a kind of structure diagram of the present invention；
Fig. 2 is a kind of structure diagram of magnet rotors disk of the present invention；
Fig. 3 is a kind of structure diagram of fixed disc of the present invention；
Fig. 4 is a kind of connection diagram of amplifier circuit unit of the present invention.
Reference numeral is：Round barrel cover 1, magnet rotors disk 2, signal amplification circuit plate 3, fixed disc 4, Hall sensor 5,
Screw hole 6, rotating disc 7, permanent magnet 8, shaft hole 9, mounting hole 10, the first pull-up resistor 11, the second pull-up resistor 12, signal are defeated
Outlet 13, field-effect tube 14, shaft 15, permanent magnet motor 16.
Specific embodiment
With reference to embodiment, the invention will be further described.
Embodiment 1
With three-phase, for the permanent magnet motor that 4 pairs of rotor number of pole-pairs, as shown in Figure 1, a kind of external of permanent magnet motor
Gyrator channel sensor, including round barrel cover 1, magnet rotors disk 2 and fixed disc 4.
As shown in Fig. 2, the magnet rotors disk is made of the cylindrical permanent magnet 8 of rotating disc 7 and four.The permanent magnet
Axial charging, and permanent magnet decile is fixed on using the rotating disc axle center as on a circle in the center of circle, and the position of permanent magnet
The position of the rotor permanent magnet identical with polarity on mating permanent magnet motor 16 corresponds；It is equipped with and turns at the axle center of rotating disc
Axis hole 9.
As shown in figure 3, being equipped with mounting hole 10 at the axle center of the fixed disc, fixed disc is equipped with signal amplification circuit
Plate 3, sets that there are six amplifier circuit units in parallel on the signal amplification circuit plate.
As shown in figure 4, each amplifier circuit unit includes Hall sensor 5, the first pull-up resistor 11, second pulls up
Resistance 12, field-effect tube 14 and signal output end 13.Wherein, the Hall sensor is born respectively with direct current anode, direct current
The grid of pole and field-effect tube (i.e. G poles) connects, the both ends of the first pull-up resistor respectively with direct current anode and field-effect tube
Grid connects, and the source electrode (i.e. S poles) of field-effect tube connect with direct current cathode, and the drain electrode (i.e. D poles) of field-effect tube is respectively with the
One end of two pull-up resistors and signal output end connection, the other end of the second pull-up resistor are connect with direct current anode.
Six Hall sensor tilings are arranged in a row and are welded on signal amplification circuit plate, and six Hall sensors are formed
Entirety in sector, the angle between the angle of sector and two adjacent permanent magnets on rotating disc is equal, it is described sector
Circular arc between circular arc and two adjacent permanent magnets on rotating disc overlaps.
As shown in Figure 1, rotating disc is set in the round barrel cover, the circumferential edge of fixed disc fixes circle along screw hole 6 is equipped with
Plate is fixed on by the screw being set in the screw hole on the opening of round barrel cover and the housing of permanent magnet motor.Round barrel cover,
Rotating disc and fixed disc are coaxial, and the shaft 15 of permanent magnet motor passes through the mounting hole and connects with the shaft hole of rotating disc
It connects, shaft and rotating disc synchronous rotary.
The principle of the present embodiment is：Rotating disc rotates together with the shaft of permanent magnet motor, when the permanent magnet on rotating disc
When going to the position of Hall sensor, Hall sensor under the action of the magnetic field of permanent magnet, multiple Hall sensors press with forever
Magnet overlaps sequencing and is sequentially output signal, and power amplification is carried out by field-effect tube, and the signal of amplification is from signal output end
Output.
Raw materials used in the present invention, equipment is the common raw material, equipment of this field unless otherwise noted；In the present invention
Method therefor is the conventional method of this field unless otherwise noted.
The above is only presently preferred embodiments of the present invention, not the present invention is imposed any restrictions, every according to the present invention
Any simple modification, change and the equivalent transformation that technical spirit makees above example, still fall within the technology of the present invention side
The protection domain of case.
Claims (6)
1. a kind of external gyrator channel sensor of permanent magnet motor, it is characterised in that：Including round barrel cover (1), magnet rotors
Disk (2) and fixed disc (4)；
The magnet rotors disk is made of rotating disc (7) and several permanent magnets (8)；The permanent magnet along rotating disc axial charging,
And permanent magnet decile is fixed on using the rotating disc axle center as on a circle in the center of circle, the number of the permanent magnet permanent magnetism mating with it
The number of pole-pairs of the rotor permanent magnet of motor (16) is equal, and the position of permanent magnet and multiple polarity on the permanent magnet motor
The position of identical rotor permanent magnet corresponds；Shaft hole (9) is equipped at the axle center of rotating disc；
Mounting hole (10) is equipped at the axle center of the fixed disc, fixed disc is equipped with signal amplification circuit plate (3), the letter
Number magnification circuit plate is equipped with the amplifier circuit unit of multiple parallel connection and multiple of its quantity for the mating permanent magnet motor number of phases
Number；
Rotating disc is set in the round barrel cover, and fixed disc is covered in the opening of round barrel cover and fixed disc and mating permanent magnetism
The housing of motor is fixed；Round barrel cover, rotating disc and fixed disc are coaxial, and the shaft (15) of permanent magnet motor is across the installation
The shaft hole connection of Kong Bingyu rotating discs, shaft and rotating disc synchronous rotary.
A kind of 2. external gyrator channel sensor of permanent magnet motor as described in claim 1, which is characterized in that Mei Gesuo
It states amplifier circuit unit and includes Hall sensor (5), the first pull-up resistor (11), the second pull-up resistor (12), field-effect tube
(14) and signal output end (13)；Wherein, the Hall sensor respectively with direct current anode, direct current cathode and field-effect tube
Grid connection, the grid of the both ends of the first pull-up resistor respectively with direct current anode and field-effect tube connect, field-effect tube
Source electrode is connect with direct current cathode, and the drain electrode of field-effect tube connects respectively with one end of the second pull-up resistor and signal output end
It connects, the other end of the second pull-up resistor is connect with direct current anode.
A kind of 3. external gyrator channel sensor of permanent magnet motor as claimed in claim 2, which is characterized in that Duo Gesuo
It states Hall sensor tiling to be arranged in a row and be welded on signal amplification circuit plate, the entirety that multiple Hall sensors are formed is in fan
Shape, the angle between the angle of the sector and two adjacent permanent magnets on rotating disc is equal, and fan-shaped circular arc and rotating disc
Circular arc between upper adjacent two permanent magnets overlaps.
4. the external gyrator channel sensor of a kind of permanent magnet motor as described in claim 1, which is characterized in that described solid
The circumferential edge for determining plectane is fixed on round barrel cover along screw hole (6), fixed disc is equipped with by the screw being set in the screw hole
And on the housing of permanent magnet motor.
5. a kind of external gyrator channel sensor of permanent magnet motor as described in claim 1, which is characterized in that it is described forever
The quantity of magnet is four；The quantity of the amplifier circuit unit is six.
6. a kind of external gyrator channel sensor of permanent magnet motor as described in claim 1, which is characterized in that it is described forever
Magnet is cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611211003.5A CN108242868A (en) | 2016-12-24 | 2016-12-24 | A kind of external gyrator channel sensor of permanent magnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611211003.5A CN108242868A (en) | 2016-12-24 | 2016-12-24 | A kind of external gyrator channel sensor of permanent magnet motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108242868A true CN108242868A (en) | 2018-07-03 |
Family
ID=62704669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611211003.5A Pending CN108242868A (en) | 2016-12-24 | 2016-12-24 | A kind of external gyrator channel sensor of permanent magnet motor |
Country Status (1)
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|---|---|
| CN (1) | CN108242868A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2363417Y (en) * | 1999-02-09 | 2000-02-09 | 董玲生 | Slotless and brushless half-ring winding dc motor |
| CN200987089Y (en) * | 2006-10-11 | 2007-12-05 | 咸宁市三六电机制造有限公司 | Permanent-magnet brushless DC motor for electrical excursion vehicle |
| CN101217246A (en) * | 2008-01-08 | 2008-07-09 | 李金东 | A permanent magnet DC motor |
| CN104167874A (en) * | 2014-08-06 | 2014-11-26 | 广州数控设备有限公司 | Servo motor with encoder function and position detection method of servo motor with encoder function |
| CN206302298U (en) * | 2016-12-24 | 2017-07-04 | 重庆乔麦科技有限公司 | A kind of external gyrator channel sensor of permanent magnet motor |
-
2016
- 2016-12-24 CN CN201611211003.5A patent/CN108242868A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2363417Y (en) * | 1999-02-09 | 2000-02-09 | 董玲生 | Slotless and brushless half-ring winding dc motor |
| CN200987089Y (en) * | 2006-10-11 | 2007-12-05 | 咸宁市三六电机制造有限公司 | Permanent-magnet brushless DC motor for electrical excursion vehicle |
| CN101217246A (en) * | 2008-01-08 | 2008-07-09 | 李金东 | A permanent magnet DC motor |
| CN104167874A (en) * | 2014-08-06 | 2014-11-26 | 广州数控设备有限公司 | Servo motor with encoder function and position detection method of servo motor with encoder function |
| CN206302298U (en) * | 2016-12-24 | 2017-07-04 | 重庆乔麦科技有限公司 | A kind of external gyrator channel sensor of permanent magnet motor |
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