CN206113969U - Magnetoelectric encoder - Google Patents
Magnetoelectric encoder Download PDFInfo
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- CN206113969U CN206113969U CN201621057895.3U CN201621057895U CN206113969U CN 206113969 U CN206113969 U CN 206113969U CN 201621057895 U CN201621057895 U CN 201621057895U CN 206113969 U CN206113969 U CN 206113969U
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- moving magnet
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Abstract
The utility model discloses a magnetoelectric encoder. This magnetoelectric encoder includes primary key dish and a plurality of wave form response generator, primary key dish is put at the central point that tries to get to the heart of a matter and is set up a rotation axis including trying to get to the heart of a matter and disc wall, on disc wall embedded have about a plurality of rows of moving magnet, corresponding every row of moving magnet and setting up a wave form response generator, every wave form response generator setting is with corresponding row of height such as moving magnet and be close to the position of embedded moving magnet one side of disc wall, and every wave form is responded to generator and is all included a hall element and a fixed magnets for when moving magnet was moved around axis of rotation in the primary key dribbling, moving magnet and fixed magnets produced magnetism sensing signal and by the hall element receipt, convert the magnetism sensing signal who receives to code signal and export. Clearly, the utility model discloses do not have mechanical noise in the course of the work, can the improvement procedure accuracy of discernment, reduce programming's the degree of difficulty, machinery does not rub, has improved the life of encoder.
Description
Technical field
The utility model is related to encoder techniques field, more particularly to a kind of magnetism encoder.
Background technology
Encoder is a kind of sensor that swing offset is converted into string number pulse signal, is finally given to logical
News, transmission and the signal form for storing, therefore it is widely used in every field.At present, the volume in audio industry, in audio amplifier
Adjust encoder used and be mechanical encoder, but, there are two big defects in mechanical encoder：One is that mechanical encoder is present
Mechanicalness noise, mechanicalness noise can produce disturbing pulse, cause the identification error of program；Two are because that mechanical encoder is by machinery
Contact directly contact, and relative motion is produced completing work, so the life-span of mechanical encoder can be limited because of mechanical friction
System.Such mechanical encoder used in sound equipment, on the one hand needs complicated noise reduction algorithm to go to eliminate mechanicalness noise, increased journey
The design difficulty of sequence；On the other hand, the restricted lifetime of mechanical encoder, also affects the service life of audio amplifier, reduces Consumer's Experience.
The content of the invention
In view of there is design difficulty in the audio amplifier of mechanical encoder and service life also receives mechanical coding used in prior art
The impact of device, reduces the problem of Consumer's Experience, it is proposed that a kind of magnetism encoder of the present utility model, to solve or at least portion
Solve the above problems with dividing.
The magnetism encoder that the utility model is provided, including primary key disk and several waveform influence generators；
The primary key disk includes the He Panbi that tries to get to the heart of a matter, and a rotary shaft is arranged in the center of trying to get to the heart of a matter, on the Pan Bi
It is embedded with upper and lower some row's moving magnets；
Correspondence is often arranged moving magnet and arranges a waveform influence generator, and each described waveform influence generator is arranged on
The position of embedded moving magnet side contour with respective row moving magnet and near the Pan Bi, each described waveform influence generator
Include a Hall element and a fixed magnet, for when primary key disk drives moving magnet to rotate around rotary shaft, moving magnetic
Iron and fixed magnet produce magnetic strength induction signal and are received by Hall element, and Hall element is converted into the magnetic strength induction signal of reception to compile
Code signal is exported.
The beneficial effects of the utility model are：The utility model utilizes magnetic induction principle, by waveform influence generator
Hall element the magnetism encoder being designed to is engaged with magnet, there is no mechanicalness noise in the course of the work, journey can be improved
The accuracy of sequence identification, reduces the difficulty of programming；Without mechanical friction, the service life of encoder is improve, by the magnetic
Photoelectric coder is used in sound equipment, contributes to increasing Consumer's Experience.
Description of the drawings
A kind of front view of magnetism encoder that Fig. 1 is provided for the utility model one embodiment；
A kind of side view of magnetism encoder that Fig. 2 is provided for the utility model one embodiment；
A kind of waveform influence generator detail view of magnetism encoder that Fig. 3 is provided for the utility model one embodiment；
A kind of waveform characteristic schematic diagram of magnetism encoder that Fig. 4 is provided for the utility model one embodiment；
The electric principle of Hall element is illustrated in a kind of magnetism encoder that Fig. 5 is provided for the utility model one embodiment
Figure.
Specific embodiment
Mentality of designing of the present utility model is：Using the principle of magnetic induction, embed on the Pan Bi of primary key disk some up and down
Row moving magnet, correspondence often arrange moving magnet arrange a waveform influence generator, and each waveform influence generator be arranged on
The position of the embedded moving magnet side of the contour and close Pan Bi of respective row moving magnet, when primary key armor is rotated around rotary shaft, meeting
Produce magnetic strength induction signal and magnetic strength induction signal is converted into into encoded signal and exported.The magnetism encoder does not have mechanicalness noise,
There is no mechanical friction yet.To make the purpose of this utility model, technical scheme and advantage clearer, below will be using embodiment
The utility model embodiment is described in further detail with reference to accompanying drawing.
A kind of front view of magnetism encoder that Fig. 1 is provided for the utility model one embodiment.As shown in figure 1, this reality
The magnetism encoder applied in example includes primary key disk and two waveform influence generators；Wherein, primary key disk includes trying to get to the heart of a matter 110 and Pan Bi
120, trying to get to the heart of a matter, 110 centers arrange a rotary shaft 130, and row's moving magnet 150 and the dynamic magnetic of lower row are embedded with disk wall 120
Iron 160；And correspondence is often arranged moving magnet and arranges a waveform influence generator 140, each waveform influence generator is arranged on and phase
The position of the inner side of the embedded moving magnet of the contour and close disk wall 120 of moving magnet should be arranged, and each waveform influence generator is equal
Including a Hall element and fixed magnet one by one, when arranging moving magnet 150 on primary key disk drives and lower row's moving magnet 160 is surrounded
When rotary shaft is rotated, moving magnet and fixed magnet produce magnetic strength induction signal and are received by Hall element, and Hall element will be received
Magnetic strength induction signal is converted into encoded signal and is exported.
In numerous impulse waveforms, the characterization rules of the waveform of square-wave pulse are stablized, and can be beneficial to distinguishing for program, so this
Embodiment carries out example with the signal that magnetism encoder is exported as square-wave pulse.Fig. 2 is provided for the utility model one embodiment
A kind of magnetism encoder side view.As shown in Fig. 2 the magnet of upper row's moving magnet 150 and lower row's moving magnet 160 be it is square
Magnet, the width of magnet is L1, spacing L3 between the magnet of upper row's moving magnet and the spacing L4 phase between the magnet of lower row's moving magnet
Deng and equal to the width L1 of each moving magnet, so exportable two square-wave pulses of the magnetism encoder, in waveform high potential and
Electronegative potential respectively accounts for half period, meets the systematicness of square pulse.
In addition, in the practical application of encoder, usual program needs the rotation direction for judging encoder, it is ensured that encoder
The accuracy of the encoded signal of output, in the present embodiment, the waveform that can be exported by encoder is judged.As shown in Fig. 2
In level to moving and arranging, translocation distance L2 is the half of the width L1 of each moving magnet to two row's moving magnets, and so the magnetoelectricity is compiled
Two square-wave pulses of code device output are two square-wave pulses that there is phase difference, the direction that the advanced waveform of phase place is produced, i.e.,
For the direction that encoder is rotated, this just facilitates the program of encoder to judge the rotation direction of primary key disk, beneficial to encoder correctly
Exports coding signal.
A kind of waveform influence generator detail view of magnetism encoder that Fig. 3 is provided for the utility model one embodiment.
As shown in figure 3, upper row's waveform influence generator of moving magnet 150 is arranged in correspondence includes a Hall element 320 and a fixation
Magnet 310, Hall element 320 is arranged on the position between fixed magnet 310 and disk wall 120, it is ensured that can receive moving magnet and
Magnetic strength induction signal between fixed magnet；The relative side magnetic of fixed magnet 310 and moving magnet 150 is conversely, beneficial to generation magnetic
Induced signal；Similarly, lower row's waveform influence generator of the lower row's moving magnet 160 of correspondence includes a Hall element 340 and
Individual fixed magnet 330, Hall element 340 is arranged on the position between fixed magnet 330 and disk wall 120, fixed magnet 330 and dynamic
The relative side magnetic of magnet 160 is contrary.The N of such as fixed magnet extremely corresponds to the S poles of moving magnet, it is ensured that can produce between the two
Magnetic strength induction signal.
It is that two square-wave pulses for ensureing output have phase difference in the present embodiment, upper row's waveform influence generator is with
Row's waveform influence generator is up and down just to setting, when primary key armor is rotated around rotary shaft, two waveform influence generators
The position of corresponding Pan Bi is in vertical direction straight line, could so coordinate and be moved to two rows of moving and arranging in level
Magnet, produces two and has dephased square-wave pulse.
In actual applications, the primary key armor of digital encoder is rotated around rotary shaft, when moving magnet turns to correspondence waveform
There is magnetic induction in the position in sensing generator, both moving magnet and fixed magnet, positioned at middle Hall element this is received
Magnetic strength induction signal, and the magnetic strength induction signal of reception is converted into into electronegative potential pulse signal is exported, when moving magnet is turned to not
The position of correspondence fixed magnet, there is no magnetic induction in both, can export high potential pulse signal, and such primary key disk is rotated one week,
Periodic square-wave pulse will be accordingly exported, the number of cycles of pulse signal is determined by the number of every row's moving magnet.
The waveform characteristic of the magnetism encoder in the present embodiment is illustrated below in conjunction with the accompanying drawings.Fig. 4 is the utility model
A kind of waveform characteristic schematic diagram of magnetism encoder that one embodiment is provided.As shown in figure 4, when primary key armor is suitable around rotary shaft
When hour hands are rotated, the right hand edge of lower row's moving magnet 160 turns to first the left hand edge position of correspondence fixed magnet 330, Liang Zhekai
Magnetisation sensing is originated, Hall element receives the magnetic induction, start to export an electronegative potential pulse, until primary key disk turns over dynamic magnetic
The width L1 of iron apart from when, the right hand edge of lower row's moving magnet 160 no longer corresponds to fixed magnet 330, no longer produces magnetic induction, i.e.,
Start to export high potential pulse.Because the moving and arranging that upper row's moving magnet and lower row's moving magnet are gone up in horizontal direction, arrange instantly dynamic
When the right hand edge of magnet 160 turns to the left hand edge position of correspondence fixed magnet 330, the right hand edge correspondence of upper row's moving magnet 150
Be Pan Bi, be also not rotated to the left hand edge position of correspondence fixed magnet 310, therefore both are without magnetic induction, Hall element
The magnetic strength induction signal, correspondence output high potential pulse will not be received；When primary key disk is rotated further, turn over moving magnet width L1's
Half apart from when, the right hand edge of upper row's moving magnet 150 is just rotated into the left hand edge position of correspondence fixed magnet 310,
Both start magnetic induction, and Hall element receives the magnetic strength induction signal, exports an electronegative potential pulse, until primary key disk turns
The width L1 of dynamic moving magnet apart from when, the right hand edge of lower row's moving magnet 150 no longer corresponds to fixed magnet 320, no longer produces magnetic
Sensing, that is, export high potential pulse.It follows that lower row's waveform influence generator is produced arrange waveform influence in electronegative potential pulse ratio
Generator produces electronegative potential pulse and wants advanced a quarter period Δ T (i.e. the length of the half of moving magnet L1).Primary key disk is continuous
Rotate, upper row's waveform influence generator produces square wave A, and lower row's waveform influence generator produces square wave B, and square wave B is super than square wave A
Front a quarter period Δ T.
But, it is generally the case that the rotation direction of primary key disk is unknown, and program needs the waveform exported by encoder to carry out
Judge.After the square wave A and square wave B for obtaining, if square wave A falls behind a quarter period Δ T than square wave B, magnetoelectricity volume is judged as
The rotation direction of code device is for clockwise；If square wave A judges magnetism encoder than a quarter period Δ T before square wave B ultrasonic
Rotation direction is for counterclockwise.In the present embodiment, square wave A than waveform B backward a quarter period Δ T, and then judge
The rotation direction of magnetism encoder is clockwise direction, thus realizes that encoder sequence judges the work(of primary key disk rotation direction
Energy.
The electric principle of Hall element is illustrated in a kind of magnetism encoder that Fig. 5 is provided for the utility model one embodiment
Figure.As shown in figure 5, the Hall element 340 of the Hall element 320 of output waveform A and output waveform B is all connected with the He of earth terminal 510
Power end 520, it is ensured that the normal work of Hall element.
It should be noted that, it is that two square-wave pulses for ensureing output have phase difference, in another reality of the present utility model
In applying example, also upper row's moving magnet and lower row's moving magnet can be arranged to up and down just to position, upper row's waveform influence generator is with
Row's waveform influence generator is in level to moving and arranging.The scheme of embodiment one is a preferred version.
In sum, the utility model embeds some row's moving magnets up and down, correspondence on the primary key Pan Bi of magnetism encoder
Often arrange moving magnet and one waveform influence generator is set, each waveform influence device includes a Hall element and a fixed magnetic
Iron, when primary key disk drives moving magnet to rotate around rotary shaft, moving magnet and fixed magnet produce magnetic strength induction signal and by Hall
Element is received, and the magnetic strength induction signal of reception is converted into encoded signal and is exported by Hall element.It can be seen that, the utility model is utilized
Magnetic induction principle, is engaged the magnetism encoder being designed to magnet, in work by the Hall element in waveform influence generator
There is no mechanicalness noise during work, the accuracy of procedure identification can be improved, reduce the difficulty of programming；Rub without machinery
Wipe, improve the service life of encoder；The magnetism encoder is used in sound equipment, contributes to increasing Consumer's Experience.
The above, specific embodiment only of the present utility model, under above-mentioned teaching of the present utility model, this area
Technical staff can carry out other improvement or deformation on the basis of above-described embodiment.It will be understood by those skilled in the art that
Above-mentioned specific descriptions simply preferably explain the purpose of this utility model, and protection domain of the present utility model should be with claim
Protection domain be defined.
Claims (6)
1. a kind of magnetism encoder, it is characterised in that
The magnetism encoder includes primary key disk and several waveform influence generators；
The primary key disk includes the He Panbi that tries to get to the heart of a matter, and in the center of trying to get to the heart of a matter a rotary shaft is arranged, and embeds on the Pan Bi
There are upper and lower some row's moving magnets；
Correspondence is often arranged moving magnet and arranges a waveform influence generator, and each described waveform influence generator is arranged on and phase
The position of the embedded moving magnet side of the contour and close Pan Bi of moving magnet should be arranged, each described waveform influence generator is wrapped
Include a Hall element and a fixed magnet, for when primary key disk drive moving magnet rotates around rotary shaft when, moving magnet with
Fixed magnet produces magnetic strength induction signal and is received by Hall element, and the magnetic strength induction signal of reception is converted into coding letter by Hall element
Number exported.
2. magnetism encoder as claimed in claim 1, it is characterised in that the Hall element be arranged on the fixed magnet and
Position between the disk wall, the relative side magnetic of the fixed magnet and the moving magnet is contrary.
3. magnetism encoder as claimed in claim 2, it is characterised in that several described waveform influence generators are just right up and down
Arrange.
4. magnetism encoder as claimed in claim 3, it is characterised in that up and down different row's moving magnets in level to displacement row
Row.
5. magnetism encoder as claimed in claim 4, it is characterised in that the dynamic magnetic of two rows is embedded with the Pan Bi
Iron, the translocation distance of two rows moving magnet is the half of the width of each moving magnet；The spacing of the two rows moving magnet
Width equal and equal to each moving magnet.
6. magnetism encoder as claimed in claim 1, it is characterised in that according to the magnetism encoder exports coding signal
Periodic adjustment often arranges the number of moving magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621057895.3U CN206113969U (en) | 2016-09-14 | 2016-09-14 | Magnetoelectric encoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621057895.3U CN206113969U (en) | 2016-09-14 | 2016-09-14 | Magnetoelectric encoder |
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| Publication Number | Publication Date |
|---|---|
| CN206113969U true CN206113969U (en) | 2017-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621057895.3U Active CN206113969U (en) | 2016-09-14 | 2016-09-14 | Magnetoelectric encoder |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106323344A (en) * | 2016-09-14 | 2017-01-11 | 歌尔科技有限公司 | Magneto-electric encoder and encoding signal generation method |
| CN113253540A (en) * | 2021-04-25 | 2021-08-13 | 龙广秋 | Digital-analog converter for optical fiber communication |
-
2016
- 2016-09-14 CN CN201621057895.3U patent/CN206113969U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106323344A (en) * | 2016-09-14 | 2017-01-11 | 歌尔科技有限公司 | Magneto-electric encoder and encoding signal generation method |
| CN113253540A (en) * | 2021-04-25 | 2021-08-13 | 龙广秋 | Digital-analog converter for optical fiber communication |
| CN113253540B (en) * | 2021-04-25 | 2023-01-03 | 深圳市南天威视科技有限公司 | Digital-analog converter for optical fiber communication |
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