CN203326821U - Double magnetic circuit multi-signal mode position sensor - Google Patents
Double magnetic circuit multi-signal mode position sensor Download PDFInfo
- Publication number
- CN203326821U CN203326821U CN2013203346799U CN201320334679U CN203326821U CN 203326821 U CN203326821 U CN 203326821U CN 2013203346799 U CN2013203346799 U CN 2013203346799U CN 201320334679 U CN201320334679 U CN 201320334679U CN 203326821 U CN203326821 U CN 203326821U
- Authority
- CN
- China
- Prior art keywords
- circuit board
- magnetic
- magnetic circuit
- double
- magnet steel
- 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
Links
Images
Landscapes
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
A double magnetic circuit multi-signal mode position sensor is disclosed. A photoelectric device is not long in service life, and therefore the service life of a photoelectric encoder is limited. The double magnetic circuit multi-signal mode position sensor comprises an outer shell (4), wherein the outer shell (4) is installed on a support rack (2), a circuit board (11) is installed at the lower end of an end cover (9) of the outer shell (4), a linear Hall sensor (8) and a disc-shaped iron core (10) are installed under the circuit board (11), a hollow shaft (1) is installed at the lower end of the outer shell (4) through a bearing (3), a double-pole cylindrical magnetic steel (12) is installed above the hollow shaft, a magnetic shielding device (13) is installed at the upper end of the bearing, an annular iron core (5) is installed at the outer side of a 8-pole annular magnetic steel (7) at the outer side of the magnetic shielding device, and a switch Hall sensor (6) is installed between the 8-pole annular magnetic steel and the annular iron core. The double magnetic circuit multi-signal mode position sensor is used for detecting the angular position and the angular speed of an electromotor.
Description
Technical field:
The utility model relates to a kind of many signal modes of double magnetic circuit position transducer.
Background technology:
In electric machine control system, position transducer commonly used has resolver and photoelectric encoder.Resolver, except the problem that volume is large, precision is not high is arranged, also requires to have pumping signal, and pumping signal generally occurs with the form of quadrature.For guaranteeing the feedback analog signal accuracy, necessary accurately phase place and the amplitude of adjustment pumping signal, and guarantee when the variation along with temperature and humidity, while vibration and electron drift occurring, keep pumping signal constant, therefore cause resolver pumping signal control circuit very complicated, and then cost is increased greatly.
Photoelectric encoder is the digital angle measurement device of a kind of light harvesting, mechanical, electrical one.Because the shortcoming of himself, can't be applied to the adverse circumstances that vibration is violent, moist, greasy dirt and dust are arranged; Because photoelectric device is not long useful life, the useful life of having limited photoelectric encoder; The manufacturing process complexity causes the expensive of photoelectric encoder.Above shortcoming, limited the range of application of photoelectric encoder greatly, can't be used in adverse circumstances and particular surroundings, such as fields such as space flight.
The utility model content:
The purpose of this utility model is to provide a kind of novel position transducer, can improve the serviceability of electric machine control system anti-adverse environment, reduced the volume of position transducer, reduced cost, meet to the utmost the requirement of control system to the diverse location signal mode, enlarged the range of application of position transducer.
The purpose of this utility model is achieved in that
a kind of many signal modes of double magnetic circuit position transducer, its composition comprises: shell, on described shell mounting bracket, described shell end cap lower end is equipped with circuit board, described circuit board below is equipped with linear hall sensor and disc iron core, described shell lower end is equipped with quill shaft by bearing, described quill shaft top is equipped with the cylindrical magnet steel in the two poles of the earth, described bearing upper end is equipped with magnetic shielding device, the outside of the 8 polar ring shape magnet steel in the described magnetic shielding device outside is equipped with annular core, the switch Hall transducer is installed in the middle of described 8 polar ring shape magnet steel and annular core.
Described many signal modes of double magnetic circuit position transducer, described shell adopts permeability magnetic material, magnetic interference that can the isolating exterior environment; The cylindrical magnet steel parallel magnetization in described the two poles of the earth is for generation of sine wave magnetic field; 8 polar ring shape magnet steel of described radial magnetizing, for generation of 4 pairs of utmost point square wave fields, are applicable to the position probing of 4 pairs of pole brushless DC motor; Three vertical switch Hall transducers of placing that on described circuit board, the space phase difference is 120 degree electrical degrees, the square wave field produced for sensing 8 polar ring shape magnet steel; Parallel 4 space quadrature an angle of 90 degrees, the sine wave magnetic field produced for the cylindrical magnet steel of sensing of being placed as of described linear hall sensor.
Described many signal modes of double magnetic circuit position transducer, described board design has the Axial angle conversion circuit, by 4 field signals that linear hall sensor senses of parallel welding, is converted to the voltage signal that means rotating shaft position by Axial angle conversion.
Described many signal modes of double magnetic circuit position transducer, the square wave field that described magnetic shielding device produces for the sine wave magnetic field of isolating cylindrical magnet steel and producing and annular magnetic steel, make two independently magnetic circuit do not interfere with each other.
Beneficial effect:
1. the utility model is simple in structure, the cost of the transducer that greatly dips, and production cost is than the about reduction by 1/3rd of equal accuracy photoelectric encoder.
The utility model volume is little, with resolver, compares, and greatly simplifies the structure, and has dwindled volume.
The utility model adverse circumstances are adaptable, and owing to adopting magnet structure, the adverse circumstances violent to vibrating, moist, that greasy dirt and dust are arranged adaptable, enlarged the range of application of position transducer.
The utility model can provide the position signalling of various modes: incremental mode, PWM pattern, synchronous serial interface pattern and brshless DC motor commutation signal.
The utility model adopts magnet structure, has saved photoelectric device, with photoelectric encoder, compares, and has greatly extended useful life.
The utility model precision is high, and the position signalling precision can reach 10.
The accompanying drawing explanation:
Accompanying drawing 1 is structural representation of the present utility model.In figure, 1 is quill shaft, and 2 is support, and 3 is bearing, and 4 is shell, 5 is annular core, and 6 is the switch Hall transducer, and 7 is 8 polar ring shape magnet steel, and 8 is linear hall sensor, and 9 is end cap, 10 is the disc iron core, and 11 is circuit board, and 12 is the cylindrical magnet steel in the two poles of the earth, and 13 is magnetic shielding device.
Embodiment:
Embodiment 1:
a kind of many signal modes of double magnetic circuit position transducer, its composition comprises: shell 4, on described shell 4 mounting brackets 2, described shell 4 end cap 9 lower ends are equipped with circuit board 11, described circuit board 11 belows are equipped with linear hall sensor 8 and disc iron core 10, described shell 4 lower ends are equipped with quill shaft 1 by bearing 3, described quill shaft 1 top is equipped with the cylindrical magnet steel 12 in the two poles of the earth, described bearing 3 upper ends are equipped with magnetic shielding device 13, the outside of the 8 polar ring shape magnet steel 7 in described magnetic shielding device 13 outsides is equipped with annular core 5, described 8 polar ring shape magnet steel 7 and the middle switch Hall transducer 6 that is equipped with of annular core 5.
Embodiment 2:
According to the described many signal modes of double magnetic circuit of embodiment 1 position transducer, described shell 4 adopts permeability magnetic materials, magnetic interference that can the isolating exterior environment; Cylindrical magnet steel 12 parallel magnetizations in described the two poles of the earth are for generation of sine wave magnetic field; 8 polar ring shape magnet steel 7 of described radial magnetizing, for generation of 4 pairs of utmost point square wave fields, are applicable to the position probing of 4 pairs of pole brushless DC motor; Three vertical switch Hall transducers 6 of placing that on described circuit board 11, the space phase difference is 120 degree electrical degrees, the square wave field produced for sensing 8 polar ring shape magnet steel 7; Parallel 4 space quadrature an angle of 90 degrees, the sine wave magnetic field produced for the cylindrical magnet steel of sensing of being placed as of described linear hall sensor 8.
Embodiment 3:
According to embodiment 1 and 2 described many signal modes of double magnetic circuit position transducers, described circuit board 11 is designed with the Axial angle conversion circuit, by 4 field signals that linear hall sensor 8 senses of parallel welding, be converted to the voltage signal that means rotating shaft position by Axial angle conversion.
Embodiment 4:
According to embodiment 1 and 2 and 3 described many signal modes of double magnetic circuit position transducers, the square wave field that described magnetic shielding device 13 produces for the sine wave magnetic field of isolating cylindrical magnet steel and producing and annular magnetic steel, make two independently magnetic circuit do not interfere with each other.
Claims (3)
1. many signal modes of double magnetic circuit position transducer, its composition comprises: shell, it is characterized in that: on described shell mounting bracket, described shell end cap lower end is equipped with circuit board, described circuit board below is equipped with linear hall sensor and disc iron core, described shell lower end is equipped with quill shaft by bearing, described quill shaft top is equipped with the cylindrical magnet steel in the two poles of the earth, described bearing upper end is equipped with magnetic shielding device, the outside of the 8 polar ring shape magnet steel in the described magnetic shielding device outside is equipped with annular core, the switch Hall transducer is installed in the middle of described 8 polar ring shape magnet steel and annular core.
2. many signal modes of double magnetic circuit position transducer according to claim 1, it is characterized in that: described shell adopts permeability magnetic material, have space quadrature on described circuit board and be three vertical switch Hall transducers of placing of 120 degree electrical degrees, described linear hall sensor is parallel is placed as 4 space quadrature an angle of 90 degrees.
3. many signal modes of double magnetic circuit position transducer according to claim 1 and 2, is characterized in that: have the Axial angle conversion circuit in described circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203346799U CN203326821U (en) | 2013-06-10 | 2013-06-10 | Double magnetic circuit multi-signal mode position sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203346799U CN203326821U (en) | 2013-06-10 | 2013-06-10 | Double magnetic circuit multi-signal mode position sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203326821U true CN203326821U (en) | 2013-12-04 |
Family
ID=49666113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203346799U Expired - Fee Related CN203326821U (en) | 2013-06-10 | 2013-06-10 | Double magnetic circuit multi-signal mode position sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203326821U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103326515A (en) * | 2013-06-10 | 2013-09-25 | 哈尔滨理工大学 | Double-magnetic-circuit multi-signal-mode position sensor and detection method thereof |
| CN108120455A (en) * | 2016-11-28 | 2018-06-05 | 姜国超 | Encoder based on the digital analogue signal combination that Hall sensor generates |
| CN108134485A (en) * | 2016-12-01 | 2018-06-08 | Ifp新能源公司 | Electric rotating machine with integral type magnetic position sensor |
| CN108827141A (en) * | 2018-06-26 | 2018-11-16 | 贵州航天控制技术有限公司 | A kind of magnetic coding type non-contact angle/placement sensor |
| CN110715675A (en) * | 2019-09-09 | 2020-01-21 | 北京金钢科技有限公司 | Hollow magnetic encoder with shielding |
| CN111095748A (en) * | 2017-09-20 | 2020-05-01 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Hollow shaft motor |
| CN116455133A (en) * | 2023-06-16 | 2023-07-18 | 广东群宇互动科技有限公司 | Particle building block module type magnetic control coupling and steering engine |
-
2013
- 2013-06-10 CN CN2013203346799U patent/CN203326821U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103326515A (en) * | 2013-06-10 | 2013-09-25 | 哈尔滨理工大学 | Double-magnetic-circuit multi-signal-mode position sensor and detection method thereof |
| CN108120455A (en) * | 2016-11-28 | 2018-06-05 | 姜国超 | Encoder based on the digital analogue signal combination that Hall sensor generates |
| CN108134485A (en) * | 2016-12-01 | 2018-06-08 | Ifp新能源公司 | Electric rotating machine with integral type magnetic position sensor |
| CN108134485B (en) * | 2016-12-01 | 2023-04-28 | 马威动力控制技术(上海)有限公司 | Rotating electrical machine with integrated magnetic position sensor |
| CN111095748A (en) * | 2017-09-20 | 2020-05-01 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Hollow shaft motor |
| CN108827141A (en) * | 2018-06-26 | 2018-11-16 | 贵州航天控制技术有限公司 | A kind of magnetic coding type non-contact angle/placement sensor |
| CN110715675A (en) * | 2019-09-09 | 2020-01-21 | 北京金钢科技有限公司 | Hollow magnetic encoder with shielding |
| CN116455133A (en) * | 2023-06-16 | 2023-07-18 | 广东群宇互动科技有限公司 | Particle building block module type magnetic control coupling and steering engine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203326821U (en) | Double magnetic circuit multi-signal mode position sensor | |
| CN103326515A (en) | Double-magnetic-circuit multi-signal-mode position sensor and detection method thereof | |
| US8179126B2 (en) | Hall rotary transformer and hall rotation angle encoder made of it | |
| CN202364092U (en) | Servo motor and servo control system | |
| CN102868279B (en) | Magnetic rotary encoder of low speed electromotor | |
| CN201860242U (en) | Position and speed detection device for rotor of motor | |
| CN109059968A (en) | Finite angle angle value divided method and device based on angle value growth | |
| CN108871181B (en) | Dynamic multi-window interval prediction angle subdivision method for multi-pair-electrode magnetoelectric encoder | |
| CN103944344A (en) | Four-pole brushless direct current position motor and detection method thereof | |
| CN111811546B (en) | Electromagnetic encoder for generating magnetism by electrified coil and resolving method thereof | |
| JP2017215302A (en) | Direct-acting rotation detector, direct-acting rotation detector unit and direct-acting rotation driving device | |
| CN112152417B (en) | Sine and cosine position encoder suitable for stator non-magnetic rail type linear motor | |
| CN101886932A (en) | Position detection device, signal processing device thereof and method | |
| CN205986831U (en) | Decoder and because electrical resolver of this decoder for electrical resolver | |
| CN202019274U (en) | Magnetic encoder for elevator door system | |
| KR20160007166A (en) | Multi-layer division magnetization permanent magnet type high resolution encoder and signal processing method thereof | |
| CN116488401A (en) | Encoder, linear motor, and position detection method for linear motor | |
| CN215952458U (en) | Rotation angle detection device and rotating body comprising same | |
| CN202772773U (en) | Low speed motor magnetic rotation encoder | |
| Wang et al. | High-accuracy magnetic rotary encoder | |
| CN203840176U (en) | 4-pole brushless direct current motor position sensor | |
| CN203840175U (en) | 2-pole brushless direct current motor position sensor | |
| CN112344970A (en) | Off-axis single-ring single-antipode absolute magnetic encoder | |
| CN103956878A (en) | Two-pole brushless direct-current motor position sensor and detection method thereof | |
| CN114089231A (en) | Magnetic sensor module, printed permanent magnet synchronous motor and application method thereof |
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: 20131204 Termination date: 20150610 |
|
| EXPY | Termination of patent right or utility model |