CN206291915U - A kind of encoder of Hall-type - Google Patents
A kind of encoder of Hall-type Download PDFInfo
- Publication number
- CN206291915U CN206291915U CN201621316348.2U CN201621316348U CN206291915U CN 206291915 U CN206291915 U CN 206291915U CN 201621316348 U CN201621316348 U CN 201621316348U CN 206291915 U CN206291915 U CN 206291915U
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- China
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- rotating shaft
- hall
- sensor
- fixed
- permanent magnet
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Abstract
A kind of encoder of Hall-type, including rotating shaft, shell, rotating circular disk, permanent magnet, circuit board, bonnet, two Hall switch sensors and N number of linear hall sensor and bearing.Bearing outer ring is fixed in shell, and rotating shaft passes through bearing inner race, and is fixed with bearing inner race, and rotating circular disk is fixed on the bottom of rotating shaft, and permanent magnet is fixed on rotating circular disk lower surface, and rotating shaft is connected with external drive mechanism.On circuit boards, the sensitive surface of Hall switch sensor and linear hall sensor is located in the magnetic field that permanent magnet is formed for Hall switch sensor and linear hall sensor welding；Circuit board is fixed on shell.When permanent magnet follows rotating shaft synchronous rotary, the voltage signal of Hall sensor meeting exporting change, hereby it is possible to obtain rotating shaft direction of rotation, angular dimension and rotating cycle.The utility model can realize that multi-turn is measured, and reliability is high, and simple structure, it is easy to assemble.
Description
Technical field
The utility model is related to a kind of encoder of Hall-type, specially a kind of Hall-type absolute value multi-turn measurement magnetic
Photoelectric coder, the encoder can be widely applied to servo-drive, machine-building, Industry Control, national defence, Aero-Space, military project
In accurate measurement and control system etc. every field.
Background technology
Encoder is a position measurement sensor for precision, and it converts the analog quantity of expression angular displacement or straight-line displacement
Into digital quantity.The operation principle of magnetism encoder is with external drive mechanism using hall magnetic component or mistor to magnet steel
The magnetic field of motion is collected, and the cyclically-varying that the magnetic field intensity of any point occurs in space can cause Hall element to export
There is the cyclically-varying of same rule in voltage signal or mistor impedance, these electronic signals are converted into by microprocessor
Digital quantity simultaneously uploads to host computer, and then obtains the position data of external drive mechanism rotation.
Compared with traditional photoelectric encoder and Rotary transformer type encoder, magnetism encoder has anti-vibration, anti-corruption
Erosion, the characteristic of anti-interference and wide work temperature, be difficult to be influenceed by dust and water smoke, thus can apply to traditional photoelectric encoder with
The immalleable field of Rotary transformer type encoder, while its building block is few, simple and compact for structure, volume significantly subtracts
It is small, and cost is lower.
Multi-turn absolute value encoder compares individual pen absolute value encoder, and its measurement range is increased, the technology of encoder
Method species is more, mainly based on gear structure.Due to gear structure, increased encoder own wt and volume
Meanwhile, the accuracy of counting also depends on Gear Processing precision, and existing Hall-type magnetism encoder is passed by permanent magnet with magnetic
The installation accuracy influence of sensor is larger.
Utility model content
The utility model solve technical problem be：Overcome the deficiencies in the prior art, there is provided a kind of multi-turn of Hall-type is compiled
Code device, it is not necessary to gear, small volume, lightweight, simple structure, reduces influence of the installation accuracy to measurement result, improves
Certainty of measurement.
The utility model solves the technical scheme that its technical problem used：A kind of encoder of Hall-type, bag
Include rotating shaft, shell, rotating circular disk, permanent magnet, circuit board, bonnet, two Hall switch sensors and N number of linear Hall sensing
Device and bearing, wherein N are 1 or even number；
Bearing outer ring is fixed in shell, and rotating shaft passes through bearing inner race, and is fixed with bearing inner race, and rotating circular disk is fixed on
The bottom of rotating shaft, permanent magnet is fixed on rotating circular disk lower surface, and rotating shaft is connected with external drive mechanism, bearing inner race, rotational circle
Disk and permanent magnet can be with rotating shaft coaxial rotatings；
On circuit boards, N number of linear hall sensor is relative for Hall switch sensor and linear hall sensor welding
Symmetrical in rotating shaft core, the sensitive surface of Hall switch sensor and linear hall sensor is located at the magnetic that permanent magnet is formed
In；Circuit board is fixed on shell, for being that Hall switch sensor and linear hall sensor are powered, Hall switch
Sensor and linear hall sensor pass through the outside output signal of circuit board；
Permanent magnet is made up of M to magnetic pole, and M is 0 natural number；Bonnet is arranged on outer casing bottom.
Described two Hall switch sensors are 180 ° of in addition arbitrarily angled relative to the interval angles of rotating shaft core.
The rotating circular disk is made up of non-magnet material.
The utility model has advantages below：
(1) the utility model does not need gear, is matched somebody with somebody by permanent magnet and Hall switch sensor, linear hall sensor
Close, can realize that multi-turn is measured in the case where its own volume is not increased, small volume, lightweight, simple structure, it is easy to pacify
Dress, can increase or decrease the number of Hall sensor according to design accuracy needs, improve the flexibility of measurement.
(2) as long as the utility model meets Hall switch sensor and the sensitive surface of linear hall sensor is located at permanent magnetism
Position measurement is capable of achieving in the magnetic field that body is formed, influence of the installation accuracy to measurement result is reduced, certainty of measurement is improve.
(3) when using multiple linear hall sensors, the work that the utility model can significantly improve encoder is sensitive
Degree and precision, and can effectively be removed by machinery by diameter difference as a pair at interval of 180 ° of linear hall sensor
Stator and the rotor eccentricity margin of error, Hall direct current biasing and magnetic signal that processing, assembling, use environment, bearing clearance are caused
Present in even-order harmonic, further increase certainty of measurement.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the schematic layout pattern of Hall sensor on circuit board；
Fig. 3 is the polar structure schematic diagram of circular permanent magnet.
Specific embodiment
For technological means, creation characteristic, reached purpose and effect for realizing the utility model are easy to understand, below
With reference to specific embodiment, the utility model is expanded on further.
As shown in figure 1, a kind of Hall-type encoder described in the utility model, including rotating shaft 1, shell 2, it is fixed on
The rotating circular disk 3 of the bottom of rotating shaft 1, the permanent magnet 4 installed in rotating circular disk lower surface, circuit board 5, bonnet 6, it is welded on circuit board
Hall switch sensor 7 and linear hall sensor 9 on 5, bearing 10, fixing nut 8.
The outer ring of bearing 10 is fixed in shell 2, and rotating shaft 1 passes through the inner ring of bearing 10, and is fixed with inner ring, rotating circular disk 3, forever
Magnet 4, the inner ring of bearing 10 can be with the coaxial rotatings of rotating shaft 1.
Inner ring is fixed with various implementations, such as rotating shaft 1 and the inner ring interference fits of bearing 10 with rotating shaft 1, and adds in rotating shaft 1
Work has a limited block, for fixed rotating shaft 1 and the relative position of bearing 10.
As shown in Fig. 2 two Hall switch sensors 7 and N (N is 1 or even number) individual linear hall sensor 9 are welded on
On circuit board.Two Hall switch sensors 7 are spaced apart, and near permanent magnet outer edge, relative to the axle center of rotating shaft 1
Angle is 180 ° of in addition arbitrarily angled.N number of linear hall sensor 9 is symmetrical relative to the axle center of rotating shaft 1, Hall switch
The sensitive surface of sensor 7 and linear hall sensor 9 is located in the magnetic field that permanent magnet 4 is formed.Such as N=4, four it is linear suddenly
You are distributed sensor 9 in 90 ° of circular array.Circuit board is fixed on shell 2 by fixing nut 8.Circuit board 5 is fixed on shell
On 2, for being that Hall switch sensor 7 and linear hall sensor 9 are powered, Hall switch sensor 7 passes through circuit board 5
Outside output pulse signal, linear hall sensor 9 passes through the outside output voltage signal of circuit board 5.Rotating shaft causes magnetic when rotating
Field change, makes the output signal of Hall sensor change, and the signal of the linear hall sensor below permanent magnet becomes
Change can be used for the calculating of the rotating shaft anglec of rotation, and the signal intensity near the Hall switch sensor of permanent magnet outer edge can use
In the calculating and the judgement of direction of rotation of rotating shaft rotating cycle.
Bonnet 6 is arranged on the bottom of shell 2, is closely joined together with shell 2, is entered with the dust and steam that prevent the external world
Decoder internal, causes the damage of encoder.Permanent magnet 4 is made up of M to magnetic pole, and M is 1,2,3 ....Permanent magnet 4 for it is circular,
Cuboid or other shapes, are illustrated in figure 3 half for N poles, half are the circular permanent magnet of S poles.
Operation principle of the present utility model is：When rotating shaft 1 as external drive mechanism (motor or other giies) rotates
When, permanent magnet 4 and the synchronous rotary of rotating shaft 1 on rotating circular disk 3, the fixed magnetic field that permanent magnet 4 is formed can also rotate, linear Hall
Sensor 9 and Hall switch sensor 7 are welded on circuit board 5, and sensitive surface and the rotating shaft 1 of linear hall sensor 9 are vertical
Straight, when permanent magnet 4 rotates to diverse location, the magnetic field intensity in the sensitive surface vertical direction of linear hall sensor 9 is to become
Change, therefore the output voltage size of linear hall sensor 9 is also to change, root with the change of the anglec of rotation of rotating shaft 1
The angle of the rotation of rotating shaft 1 can be obtained according to the output voltage.The utility model using multiple linear hall sensors be in order to
The working sensitivity and precision of encoder are improved, at interval of 180 ° of linear hall sensors as a pair, by diameter difference
The stator that is caused by machining, assembling, use environment, bearing clearance and the rotor eccentricity margin of error, suddenly can effectively be removed
Even-order harmonic present in that direct current biasing and magnetic signal.
When permanent magnet 4 rotates with rotating shaft, the meeting output pulse signal of Hall switch sensor 7, according to two switches
The relative position of the interval angles of type Hall sensor 7 and the phase of output pulse signal, it can be determined that go out the rotation of encoder
Turn direction, while being counted by pulse number, the rotating cycle of encoder can be obtained.
Hall switch sensor in the utility model can also be linear hall sensor.
Claims (3)
1. a kind of encoder of Hall-type, it is characterised in that：Including rotating shaft (1), shell (2), rotating circular disk (3), permanent magnetism
Body (4), circuit board (5), bonnet (6), two Hall switch sensors (7) and N number of linear hall sensor (9) and bearing
(10), wherein N is 1 or even number；
Bearing (10) outer ring is fixed in shell (2), and rotating shaft (1) is fixed through bearing (10) inner ring with bearing (10) inner ring,
Rotating circular disk (3) is fixed on the bottom of rotating shaft (1), and permanent magnet (4) is fixed on rotating circular disk (3) lower surface, rotating shaft (1) and outside
Drive mechanism is connected, and bearing (10) inner ring, rotating circular disk (3) and permanent magnet (4) can be with rotating shaft (1) coaxial rotatings；
Hall switch sensor (7) and linear hall sensor (9) are welded on circuit boards, N number of linear hall sensor (9)
Symmetrical relative to rotating shaft (1) axle center, the sensitive surface of Hall switch sensor (7) and linear hall sensor (9) is located at
In the magnetic field that permanent magnet (4) is formed；Circuit board (5) is fixed on shell (2), for being Hall switch sensor (7) and line
Property Hall sensor (9) power supply, Hall switch sensor (7) and linear hall sensor (9) are outside defeated by circuit board (5)
Go out signal；
Permanent magnet (4) is made up of M to magnetic pole, and M is 0 natural number；Bonnet (6) is installed in shell (2) bottom.
2. the encoder of a kind of Hall-type according to claim 1, it is characterised in that：Described two Hall switch
Sensor (7) is 180 ° of in addition arbitrarily angled relative to the interval angles in rotating shaft (1) axle center.
3. the encoder of a kind of Hall-type according to claim 1, it is characterised in that：The rotating circular disk is led by non-
Magnetic material is constituted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621316348.2U CN206291915U (en) | 2016-12-02 | 2016-12-02 | A kind of encoder of Hall-type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621316348.2U CN206291915U (en) | 2016-12-02 | 2016-12-02 | A kind of encoder of Hall-type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206291915U true CN206291915U (en) | 2017-06-30 |
Family
ID=59097885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621316348.2U Expired - Fee Related CN206291915U (en) | 2016-12-02 | 2016-12-02 | A kind of encoder of Hall-type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206291915U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107389104A (en) * | 2017-08-31 | 2017-11-24 | 周子豪 | A kind of multi-turn magnetic absolute angle sensor |
| CN109029232A (en) * | 2018-08-13 | 2018-12-18 | 成都太微电子科技有限公司 | A method of based on rotating excitation field displacement measurement |
| CN109556638A (en) * | 2018-12-24 | 2019-04-02 | 前沿驱动（北京）技术有限公司 | Multi-turn absolute value encoder, coding method, controller and storage medium |
| CN110243389A (en) * | 2019-06-18 | 2019-09-17 | 邢台市超声检测设备有限公司 | A kind of rail flaw detector magnetic encoder and its measurement method |
| CN111030665A (en) * | 2019-12-02 | 2020-04-17 | 中国船舶重工集团公司第七一六研究所 | Induction type underwater switch |
| CN112117079A (en) * | 2019-11-26 | 2020-12-22 | 昆山为涵电驱动科技有限公司 | Encoder magnet structure, encoder, motor, electrical equipment and vehicle |
| CN112129211A (en) * | 2020-09-10 | 2020-12-25 | 宁波金兴量具有限公司 | Anti-interference ranging method based on variable magnetic field |
| CN112461119A (en) * | 2020-11-03 | 2021-03-09 | 中国空空导弹研究院 | High-precision multi-coil magnetoelectric absolute value angle sensor and implementation method |
| CN112815827A (en) * | 2020-12-25 | 2021-05-18 | 武汉航空仪表有限责任公司 | Angular displacement measuring device and method based on Hall effect |
| CN113405573A (en) * | 2021-06-08 | 2021-09-17 | 上海精传电子科技有限公司 | Harmonic absolute value encoder |
-
2016
- 2016-12-02 CN CN201621316348.2U patent/CN206291915U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107389104B (en) * | 2017-08-31 | 2021-10-15 | 周子豪 | Multi-ring magnetic absolute angle sensor |
| CN107389104A (en) * | 2017-08-31 | 2017-11-24 | 周子豪 | A kind of multi-turn magnetic absolute angle sensor |
| CN109029232A (en) * | 2018-08-13 | 2018-12-18 | 成都太微电子科技有限公司 | A method of based on rotating excitation field displacement measurement |
| US10928224B2 (en) | 2018-12-24 | 2021-02-23 | Innfos Drive (Beijing) Technologies Co., Ltd. | Multi-turn absolute encoder, encoding method and robot |
| CN109556638A (en) * | 2018-12-24 | 2019-04-02 | 前沿驱动（北京）技术有限公司 | Multi-turn absolute value encoder, coding method, controller and storage medium |
| CN109556638B (en) * | 2018-12-24 | 2019-10-18 | 前沿驱动（北京）技术有限公司 | Multi-turn absolute value encoder, coding method, controller and storage medium |
| CN110243389A (en) * | 2019-06-18 | 2019-09-17 | 邢台市超声检测设备有限公司 | A kind of rail flaw detector magnetic encoder and its measurement method |
| CN112117079A (en) * | 2019-11-26 | 2020-12-22 | 昆山为涵电驱动科技有限公司 | Encoder magnet structure, encoder, motor, electrical equipment and vehicle |
| CN111030665A (en) * | 2019-12-02 | 2020-04-17 | 中国船舶重工集团公司第七一六研究所 | Induction type underwater switch |
| CN112129211A (en) * | 2020-09-10 | 2020-12-25 | 宁波金兴量具有限公司 | Anti-interference ranging method based on variable magnetic field |
| CN112461119A (en) * | 2020-11-03 | 2021-03-09 | 中国空空导弹研究院 | High-precision multi-coil magnetoelectric absolute value angle sensor and implementation method |
| CN112461119B (en) * | 2020-11-03 | 2022-06-28 | 中国空空导弹研究院 | High-precision multi-coil magnetoelectric absolute value angle sensor and implementation method |
| CN112815827A (en) * | 2020-12-25 | 2021-05-18 | 武汉航空仪表有限责任公司 | Angular displacement measuring device and method based on Hall effect |
| CN113405573A (en) * | 2021-06-08 | 2021-09-17 | 上海精传电子科技有限公司 | Harmonic absolute value encoder |
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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: 20170630 Termination date: 20191202 |