CN206148262U - Multipolar high frequency vernier resolver - Google Patents
Multipolar high frequency vernier resolver Download PDFInfo
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- CN206148262U CN206148262U CN201620556567.1U CN201620556567U CN206148262U CN 206148262 U CN206148262 U CN 206148262U CN 201620556567 U CN201620556567 U CN 201620556567U CN 206148262 U CN206148262 U CN 206148262U
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- stator
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- high frequency
- rotor
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Abstract
The utility model discloses a multipolar high frequency vernier resolver can be applied to electric motor rotor's among the servo control system angular position and the high accuracy testing of rotational speed. Multipolar high frequency vernier resolver comprises stator and rotor two parts, on the stator around have the driving winding and just, the cosine signal winding. The rotor excircle is the protrusion pole form, and the number of protrusion magnetic pole is exactly electrical resolver's a number of pole -pairs. The driving winding is positive and negative alternate series connection on every tooth, just, the cosine signal winding separates that the tooth opposition is established ties and mutually perpendicular on the space. The utility model provides a multipolar high frequency vernier resolver, stator, rotor core adopt high frequency iron oxysome iron core, and the driving winding inserts high frequency signal, and frequency of operation makes electrical resolver produce sufficient current potential under the condition of the few number of turns of little magnetic core more than 10kHz, and under the same power, the transformer volume is littleer, has improved the precision of angle and tachometry on the whole simultaneously.
Description
Technical field
This utility model is related to a kind of rotary transformer, more particularly to a kind of many extremely high frequency magnetoresistance transformers.
Background technology
Rotary transformer is as a kind of higher angles and positions detection means of precision, its sensitivity height, good reliability, anti-
Interference performance is strong, is widely used in the fields such as military affairs, agricultural, industry.Multipolar system rotary transformer is used for high accuracy definitely
In formula feedback system.
Traditional Wound-rotor type rotary transformer air gap is uniform, there is brush, slip ring or coupling transformer, meeting in output signal
There is electromagnetic interference and rotary transformer service life is shorter, production technology is also extremely complex, hardly results in efficient application.
Multipole magnetoresistance transformer realize it is brushless, without coupling transformer formula structure while, compare a pair of pole magnetic
Resistive rotary transformer, its can by each error etc. not caused by average airgap to the series compensation extremely descended between winding,
Make rotary transformer precision improve a grade again, and multipole magnetoresistance transformer number of poles is more, the precision of system
It is higher.
The Chinese patent VR Two Speed Resolver of Application No. 201210357975.0, overcomes conventional wire-wound
Some drawbacks of rotary transformer and a pair of pole magnetoresistance transformers, contactless, simple structure, and angular surveying can be made
Precision is significantly improved, but which is for control system is to the requirement of angle feedback device rapid-action, common low frequency rotating transformator
Response frequency be difficult meet.
Utility model content
To overcome the defect of prior art, this utility model is there is provided many extremely high frequency reluctance types based on magnetic resistance change rate principle
Rotary transformer, the angular surveying or angular position detection for high accuracy quick response.
For achieving the above object, the technical scheme that this utility model is taken is：Many extremely high frequency magnetoresistance transformers, bag
Rotor, stator are included, stator includes equally distributed excitation winding, sinusoidal signal winding and cosine signal on stator core, stator
Winding, rotor inner circle are circular, and cylindrical to protrude pole form, the number for protruding magnetic pole is exactly the number of pole-pairs of rotary transformer,
Stator is uniformly provided with tooth and groove along internal circular surfaces interval, excitation winding and just, cosine signal winding be all around on stator, encourage around
Group encourages winding positive and negative alternate series connection on each tooth using Sine distribution winding, sinusoidal signal winding, cosine signal winding every
The anti-phase series connection of tooth and be spatially mutually perpendicular to, encourage winding, the input of sinusoidal signal winding and cosine signal winding, output around
Group is logical to be wound on direct-coupling in a groove.Stator, rotor access high frequency using the higher FERRITE CORE of pcrmeability, excitation winding
Signal, operating frequency is in more than 10kHz.
Compared with prior art, this utility model has the advantages that：
1st, non-brushing is realized, simple structure improves operational reliability, extends whole machine service life.
2nd, increase magnetoresistance transformer number of pole-pairs, symmetric position magnetic resistance is complementary, improves certainty of measurement.
3rd, encourage winding to be passed through high-frequency voltage signal, improve response speed.
Description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is partial structurtes enlarged drawing of the present utility model；
In figure：1st, stator；2nd, rotor；3rd, air gap；4th, encourage winding；5th, sine windings；6th, cosine winding；A, stator tooth；
B, stator slot.
Specific embodiment
Technological means, creation characteristic, reached purpose and effect to realize this utility model is easy to understand, below
With reference to specific embodiment, this utility model is expanded on further.
As depicted in figs. 1 and 2, many extremely high frequency magnetoresistance transformers of this utility model include stator 1, rotor 2, excitation
Winding 4, sine windings 5, cosine winding 6.Stator 1 and rotor 2 are made up of high frequency permeability magnetic material ferrite.2 inner circle of rotor is round
Shape, cylindrical presentation corrugated salient pole type profile, the number for protruding magnetic pole is exactly the number of pole-pairs of rotary transformer.The inner circle of stator 1
There is air gap 3 between 2 outer round surface of surface and rotor, by changing gas length so as to change magnetic resistance.Field spider shape is used
Below equation is set up：
（1）
In formula：T is rotor angle parameter, and r is rotor with salient pole least radius, and h is for rotor with salient pole minimal air gap length and most
The difference of big gas length, usually 1-3mm.
According to stator outer diameter size, this example is provided with 16 stator tooth a and stator stator internal circular surfaces are outer vertically
Groove b, the ratio for making the facewidth and tooth pitch are 0.5, with reduce to the full extent just, remaining winding export the harmonic wave of counter potential waveform；
In stator slot b, excitation winding 4, sine windings 5 and cosine winding 6 are wound with around stator tooth a.Excitation winding on each tooth just
Anti-phase series connection, just, cosine signal winding is every the anti-phase series connection of tooth and is spatially mutually perpendicular to, and encourages the exit of winding 4 to connect
The exit for connecing constant pressure high-frequency ac power, sine windings 5 and cosine winding 6 is respectively sine windings and the output of cosine winding.
In this example, 1 outside diameter of stator is 50mm, and stator internal circular surfaces are outer vertically to be provided with 16 tooth a and groove b.Order is public
Formula（1）In obtain six pairs of 2 outer circular shapes of pole multipole magnetoresistance transformer rotor.
Ultimate principle of the present utility model and principal character and advantage of the present utility model has been shown and described above.One's own profession
The technical staff of industry it should be appreciated that this utility model is not restricted to the described embodiments, described in above-described embodiment and description
Simply illustrate principle of the present utility model, on the premise of without departing from this utility model spirit and scope, this utility model is also
Various changes and modifications are had, these changes and improvements are both fallen within the range of claimed this utility model.This utility model
Claimed scope is by appending claims and its equivalent thereof.
Claims (4)
1. extremely high frequency magnetoresistance transformer more than, including rotor, stator, it is characterised in that：The stator include stator core,
Equally distributed excitation winding, sinusoidal signal winding and cosine signal winding on stator, the stator are equal along internal circular surfaces interval
The even ratio for being provided with tooth and groove, the facewidth and tooth pitch be 0.5, it is described excitation winding and just, cosine signal winding be all around on stator,
The rotor outer circle is protrusion pole form, is provided with air gap between the outer round surface and stator internal circular surfaces of the rotor, described
Excitation winding adopts Sine distribution winding, encourages winding positive and negative alternate series connection, sinusoidal signal winding, cosine on each stator tooth
Signal winding is every the anti-phase series connection of stator tooth and is spatially mutually perpendicular to.
2. many extremely high frequency magnetoresistance transformers according to claim 1, it is characterised in that：The excitation winding is passed through
Constant pressure high-frequency ac power, many extremely high frequency magnetoresistance transformer operating frequencies are in more than 10kHz.
3. many extremely high frequency magnetoresistance transformers according to claim 1, it is characterised in that：The excitation winding is logical high
During frequency electric excitation, sinusoidal signal winding, cosine signal winding export induction electromotive force respectively, electromotive force amplitude and angle of rotor into
Just, cosine function relationship.
4. many extremely high frequency magnetoresistance transformers according to claim 1, it is characterised in that：The stator, rotor ferrum
Core adopts high frequency ferrite core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620556567.1U CN206148262U (en) | 2016-06-07 | 2016-06-07 | Multipolar high frequency vernier resolver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620556567.1U CN206148262U (en) | 2016-06-07 | 2016-06-07 | Multipolar high frequency vernier resolver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206148262U true CN206148262U (en) | 2017-05-03 |
Family
ID=58617656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620556567.1U Expired - Fee Related CN206148262U (en) | 2016-06-07 | 2016-06-07 | Multipolar high frequency vernier resolver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206148262U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112635180A (en) * | 2020-12-29 | 2021-04-09 | 南京工程学院 | Stator structure of reluctance type rotary transformer and integrated rotary transformer |
-
2016
- 2016-06-07 CN CN201620556567.1U patent/CN206148262U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112635180A (en) * | 2020-12-29 | 2021-04-09 | 南京工程学院 | Stator structure of reluctance type rotary transformer and integrated rotary transformer |
| CN112635180B (en) * | 2020-12-29 | 2023-06-06 | 南京工程学院 | Stator structure of reluctance type rotary transformer and integrated rotary transformer |
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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: 20170503 Termination date: 20190607 |