CN207816296U - Encoder apparatus based on a pair of of pole magnetoresistance transformer - Google Patents
Encoder apparatus based on a pair of of pole magnetoresistance transformer Download PDFInfo
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- CN207816296U CN207816296U CN201820167838.3U CN201820167838U CN207816296U CN 207816296 U CN207816296 U CN 207816296U CN 201820167838 U CN201820167838 U CN 201820167838U CN 207816296 U CN207816296 U CN 207816296U
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Abstract
The utility model discloses the encoder apparatus based on a pair of of pole magnetoresistance transformer, including rotary transformer and pcb board, the pcb board is fixed in the shell of rotary transformer, the pcb board is equipped with signal amplifying circuit and decoding DSP, the input terminal of the signal amplifying circuit and the signal terminal of rotary transformer are electrically connected, the output end of the signal amplifying circuit is electrically connected with decoding DSP, it decodes the output end of DSP and the serial output port of pcb board or parallel output port is electrically connected, the signal amplifying circuit is used to amplify the signal of rotary transformer acquisition, the signal that the decoding DSP is used to obtain rotary transformer is decoded；The utility model is simple in structure, performance is stable, reduces abrasion, is long lifespan, adaptable, and working range is wide, with good market application value.
Description
Technical field
The utility model is related to encoder fields, more particularly to the dress of the encoder based on a pair of of pole magnetoresistance transformer
It sets.
Background technology
The industries such as electric vehicle, industrial automation, robot, textile machine and aerospace be unable to do without electric rotating machine
High performance control, thus motor angular sensor is needed, and often require that its application under high temperature environment.
Currently, photo-electric angle encoder has obtained answering extensively because can easily realize the detection of motor rotation angle
With, but this photo-electric angle encoder contains photoelectric component and semiconductor devices, thus can not apply in the high temperature environment.
Rotary transformer is a kind of sensor that rotation angle detection may be implemented, since it does not use photoelectric converter
Part, thus can be used in the environment of higher temperature.But there are shortcomings for current rotary transformer：Market at present
It is all P to pole (P >=21) that reluctance type rotation, which becomes mostly, and this rotation, which becomes rotor rotation, turns around and will produce the signal in P period as revolving
The output signal of change will appear the position of P rotor in the output of identical signal；Secondly, existing market middle ring deformation
Depressor also can determine that the absolute position of rotor, but this transformer device structure is complicated, and production process is more, and needed on rotor around
Line, reliability are also not so good as magnetoresistance transformer；Finally, encoder accounts for critically important status in position sensor, still
Requirement of the encoder to working environment is high, and just loses advantage in the case of some operating modes complexity.
The prior art is defective, needs to improve.
Utility model content
In order to solve defect existing for present technology, the utility model is provided based on a pair of of pole magnetoresistance transformer
Encoder apparatus.
Technology official documents and correspondence provided by the utility model, it is special based on the encoder apparatus of a pair of of pole magnetoresistance transformer
Sign is, including rotary transformer and pcb board, and the pcb board is fixed in the shell of rotary transformer, is set on the pcb board
There are signal amplifying circuit and decoding DSP, the input terminal of the signal amplifying circuit and the signal terminal of rotary transformer are electrical
Connection, the output end of the signal amplifying circuit are electrically connected with decoding DSP, decode DSP output end and pcb board it is serial defeated
Exit port or parallel output port are electrically connected, and the signal amplifying circuit is used to amplify the signal of rotary transformer acquisition, institute
It states the signal that decoding DSP is used to obtain rotary transformer to be decoded, the rotary transformer includes shell, bracket, stator
And rotor, the shell are in the form of a column, fixed stator in shell, bracket is fixed on enclosure interior one end, and the rotor is fixed on fixed
In son, the rotor includes core and shaft, and the shaft is fixed on core, and the core includes mould set and iron core, described
A part for iron core is in mould set, and the iron core is eccentric wheel, and the center of circle of eccentric wheel is fixed in one end of the shaft, described
Bearing is set on bracket, and the other end of shaft runs through bearing, stretches out outside shell, the stator is made of permeability magnetic material, described fixed
It is uniformly arranged multiple detection teeth on sub- inner wall, detection coil is wound on the detection tooth, multiple screens are set on the outside of the stator,
The stator is fixed on by screens in shell, and the upper and lower end face of the stator and lateral surface coat insulating protective layer, the inspection
It surveys tooth and is set as 4N+4, N is the positive integer less than 9, and the detection coil includes magnet exciting coil and signal coil, the shell
External stability terminal protecting cover, fixing terminal terminals in the terminal protecting cover, the terminal connections end is divided into excitation and connects
Line end and signal terminal, the excitation terminals are connect with magnet exciting coil, and the signal terminal is connect with signal terminal.
Preferably, the stator is integrally formed by powder metallurgy die casting, and the outer surface of the stator coats corrosion-inhibiting coating, institute
The outer surface setting insulating protective layer of corrosion-inhibiting coating is stated, the insulating protective layer is set as phenolic resin, and the phenolic resin is also
Coated on the detection tooth after winding detection coil.
Preferably, the detection tooth includes upper detection tooth and lower detection tooth, and tooth socket is arranged between the upper and lower detection tooth,
Setting is described to wind signal coil on column fixed excitation coil, the upper and lower detection tooth around column in the tooth socket, described to encourage
Magnetic coil is set to the lower layer of signal coil, and the magnet exciting coil is laterally arranged, and the signal coil is longitudinally disposed.
Preferably, the tooth socket is set as rectangular tooth socket or arc slot.
Preferably, the magnet exciting coil is to wait circles concentratred winding, the positive and negative alternate series connection of magnet exciting coil, the signal wire
For circle to wait circles concentratred winding, signal coil is every the series connection of tooth reverse phase and is spatially mutually perpendicular to.
Preferably, the inside of the stator uniformly opens up compensating line ring recess, and three compensation are equipped in the compensating line ring recess
Winding copper bar, compensative winding copper bar are made of the copper bar of 20mm × 3mm, and insulating paper two is used between three compensative winding copper bars
Two separate, and three compensative winding copper bars are separated itself and stator using mica and polyimides, and copper bar uses welding manner two-by-two
It is connected, compensative winding is made to form a tandem paths.
Preferably, the channel-shaped lamination that the stator is washed by fe-Ni soft magnetic alloy or silicon plate is built up, the stator
Peakflux density is 10000-12000 Gausses.
Preferably, the eccentric wheel is built up by fe-Ni soft magnetic alloy piece or silicon plate punching, and the nose of the eccentric wheel is made
For the salient pole of rotor.
Advantageous effect compared with the existing technology, the utility model by the way that a pair of of pole magnetoresistance transformer will be arranged,
The use of encoder is set to determine the rotational angle of motor more accurately；Rotor is set as eccentric wheel, can detect the absolute position of rotor
It sets, operation strategies are more extensive；By the way that magnet exciting coil and detection coil is arranged, the detection of absolute position is carried out to rotor；Structure letter
Single, production process is convenient, and product reliability is high；Long lifespan, brushless design not will produce mechanical wear in operational process, normally
In the case of the constant product of material property can unanimously run down；Suitable for the working environment of various complexity, high temperature, low temperature,
Deciding advantage is accounted under the adverse circumstances such as vibration, the utility model is simple in structure, performance is stable, reduces abrasion, long lifespan, adaptation
Property it is strong, working range is wide, have good market application value.
Description of the drawings
Fig. 1 is the utility model rotary transformer dimensional structure diagram；
Fig. 2 is the utility model rotary transformer vertical view；
Fig. 3 is utility model core schematic diagram；
Fig. 4 is four stator schematic diagram of the utility model embodiment；
Fig. 5 is six stator of the utility model embodiment and rotor explosive view.
Specific implementation mode
It should be noted that above-mentioned each technical characteristic continues to be combined with each other, the various embodiments not being enumerated above are formed,
It is accordingly to be regarded as the range of the utility model specification record；Also, it for those of ordinary skills, can be according to above stating
It is bright to be improved or converted, and all these modifications and variations should all belong to the protection model of the appended claims for the utility model
It encloses.
For the ease of understanding the utility model, in the following with reference to the drawings and specific embodiments, the utility model is carried out more detailed
Thin explanation.The preferred embodiment of the utility model is given in attached drawing.But the utility model can be with many different
Form is realized, however it is not limited to this specification described embodiment.Make to this on the contrary, purpose of providing these embodiments is
The understanding of the disclosure of utility model is more thorough and comprehensive.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term used in this specification " vertical ", " horizontal ",
"left", "right" and similar statement are for illustrative purposes only.
Unless otherwise defined, technical and scientific term all used in this specification and the skill for belonging to the utility model
The normally understood meaning of technical staff in art field is identical.Art used in the description of the utility model in this specification
Language, which is only for the purpose of describing specific embodiments, is not intended to limitation the utility model.
It elaborates below in conjunction with the accompanying drawings to the utility model.
As shown in Figure 1 to Figure 3, embodiment one, based on the encoder apparatus of a pair of of pole magnetoresistance transformer, feature
It is, including rotary transformer and pcb board, the pcb board is fixed in the shell of rotary transformer, and the pcb board is equipped with
Signal amplifying circuit and decoding DSP, the input terminal of the signal amplifying circuit and the signal terminal of rotary transformer electrically connect
It connects, output end and the decoding DSP of the signal amplifying circuit are electrically connected, and decode the output end of DSP and the Serial output of pcb board
Port or parallel output port are electrically connected, and the signal amplifying circuit is used to amplify the signal of rotary transformer acquisition, described
The signal that decoding DSP is used to obtain rotary transformer is decoded, and the rotary transformer includes shell, bracket, 1 and of stator
Rotor, the shell are in the form of a column, fixed stator 1 in shell, and bracket is fixed on enclosure interior one end, and the rotor is fixed on stator
In 1, the rotor includes core and shaft, and the shaft is fixed on core, and the core includes mould set 2 and iron core 3, described
A part for iron core 3 is in mould set 2, and the iron core 3 is eccentric wheel 31, and the circle of eccentric wheel 31 is fixed in one end of the shaft
The heart, bearing is arranged on the bracket, and the other end of shaft runs through bearing, stretches out outside shell, the stator 1 is by permeability magnetic material system
At, it is uniformly arranged multiple detection teeth 4 on 1 inner wall of the stator, winds detection coil on the detection tooth 4,1 outside of the stator
Multiple screens 5 are set, and the stator 1 is fixed on by screens 5 in shell, the upper and lower end face of the stator 1 and lateral surface coating
Insulating protective layer, the detection tooth 4 are set as 4N+4, and N is the positive integer less than 9, and the detection coil includes magnet exciting coil
And signal coil, the external stability terminal protecting cover of the shell, fixing terminal terminals in the terminal protecting cover, the end
Sub- terminals are divided into excitation terminals and signal terminal, and the excitation terminals are connect with magnet exciting coil, the signal wiring
End is connect with signal terminal.
Preferably, the stator 1 is integrally formed by powder metallurgy die casting, and the outer surface of the stator 1 coats corrosion-inhibiting coating,
Insulating protective layer is arranged in the outer surface of the corrosion-inhibiting coating, and the insulating protective layer is set as phenolic resin, the phenolic resin
It is also coated on the detection tooth 4 after winding detection coil.
Preferably, the detection tooth 4 includes upper detection tooth 4 and lower detection tooth 4, and tooth is arranged between the upper and lower detection tooth 4
Slot, the tooth socket is interior to be arranged around column, described to wind signal coil on column fixed excitation coil, the upper and lower detection tooth 4, institute
The lower layer that magnet exciting coil is set to signal coil is stated, the magnet exciting coil is laterally arranged, and the signal coil is longitudinally disposed.
Preferably, the tooth socket is set as rectangular tooth socket or arc slot.
Preferably, the magnet exciting coil is to wait circles concentratred winding, the positive and negative alternate series connection of magnet exciting coil, the signal wire
For circle to wait circles concentratred winding, signal coil is every the series connection of tooth reverse phase and is spatially mutually perpendicular to.
Preferably, the inside of the stator 1 uniformly opens up compensating line ring recess, and three compensation are equipped in the compensating line ring recess
Winding copper bar, compensative winding copper bar are made of the copper bar of 20mm × 3mm, and insulating paper two is used between three compensative winding copper bars
Two separate, and three compensative winding copper bars are separated itself and stator 1 using mica and polyimides, and copper bar uses welding manner two-by-two
It is connected, compensative winding is made to form a tandem paths.
Preferably, the channel-shaped lamination that the stator 1 is washed by fe-Ni soft magnetic alloy or silicon plate is built up, the stator 1
Peakflux density be 10000-12000 Gausses.
Preferably, the eccentric wheel 31 by fe-Ni soft magnetic alloy piece or silicon plate punching build up, the eccentric wheel 31 it is convex
Hold the salient pole as rotor.
Further, ennation 32 is set at the salient pole of the eccentric wheel 31, and the ennation 32 occupies eccentric wheel 31
Half of circumference, and ennation 32 is gradually reduced from centre to two-end thickness.
Embodiment two is that annulus, the annulus is made using permeability magnetic material in the core with the difference place of embodiment one
It is fixed by insulating bar between shaft, the ring body of annulus is tapered by a lateral other side, and the ring body most butt end of annulus is made
For the salient pole of rotor.
Embodiment three, the difference is that, the detection tooth 4 of the stator 1 is set to 1 upper surface of stator with above example
On, column or T shape columns is arranged in the detection tooth 4, and wire casing is arranged on the detection tooth 4, magnet exciting coil is wound in the wire casing,
Signal coil is wound on the detection tooth 4, the excitation terminals are connect with magnet exciting coil, and the signal terminal connects with signal
Line end connects.
As shown in figure 4, example IV, the difference is that, the detection tooth 8 of the stator, which is set to, to be determined with above example
On the upper surface of son, it is additionally provided with excitation tooth 7 on the inner wall of stator, signal coil, the excitation tooth 7 are wound on the detection tooth 8
Upper winding magnet exciting coil, the excitation terminals are connect with magnet exciting coil, and the signal terminal is connect with signal terminal.
Embodiment five, with above example the difference is that, the detection tooth 4 of the stator 1 is set to 1 inner wall of stator
On, excitation tooth is set on the upper surface of stator 1, winds signal coil on the detection tooth 4, excitation wire is wound on the excitation tooth
Circle, the excitation terminals are connect with magnet exciting coil, and the signal terminal is connect with signal terminal.
Embodiment six, as shown in figure 5, with above example the difference is that, the detection tooth 102 of the stator is arranged
In on the inner wall of stator, excitation tooth 101 is set, and the eccentric wheel 9 is fixed in stator, the detection tooth on the upper surface of stator
102 is identical as the quantity of excitation tooth 101, and the quantity of the detection tooth and excitation tooth is eight；
Opposite position just has occurred when rotor is driven by motor to be rotated in the operation principle of the utility model between stator and rotor
The change set, in this way by magnetoresistance it is found that the magnetic conductance of air gap has also ensued variation, when rotor turns over one week, air gap
The variation of magnetic conductance is a cycle, so that the induced potential in air gap flux density and signal coil has also and then changed one
A period carries out signal amplification in induced potential signal entering signal amplifying circuit, and decoding DSP is decoded, thus detection electricity
The rotation angle of machine and absolute position.
It should be noted that above-mentioned each technical characteristic continues to be combined with each other, the various embodiments not being enumerated above are formed,
It is accordingly to be regarded as the range of the utility model specification record；Also, it for those of ordinary skills, can be according to above stating
It is bright to be improved or converted, and all these modifications and variations should all belong to the protection model of the appended claims for the utility model
It encloses.
Claims (8)
1. the encoder apparatus based on a pair of of pole magnetoresistance transformer, which is characterized in that including rotary transformer and PCB
Plate, the pcb board are fixed in the shell of rotary transformer, and the pcb board is equipped with signal amplifying circuit and decoding DSP, institute
The signal terminal of the input terminal and rotary transformer of stating signal amplifying circuit is electrically connected, the output of the signal amplifying circuit
End is electrically connected with decoding DSP, is decoded the output end of DSP and is electrically connected with the serial output port of pcb board or parallel output port
It connects, the signal amplifying circuit is used to amplify the signal of rotary transformer acquisition, and the decoding DSP is for obtaining rotary transformer
The signal taken is decoded, and the rotary transformer includes shell, bracket, stator and rotor, and the shell is in the form of a column, in shell
Fixed stator, bracket are fixed on enclosure interior one end, and the rotor is fixed in stator, and the rotor includes core and shaft,
The shaft is fixed on core, and the core includes mould set and iron core, and a part for the iron core is in mould set, the iron
Core is eccentric wheel, and the center of circle of eccentric wheel is fixed in one end of the shaft, and bearing is arranged on the bracket, and the other end of shaft passes through
Bearing is worn, is stretched out outside shell, the stator is made of permeability magnetic material, and multiple detection teeth, institute are uniformly arranged on the stator inner wall
It states and winds detection coil on detection tooth, multiple screens are set on the outside of the stator, the stator is fixed on by screens in shell,
The upper and lower end face of the stator and lateral surface coat insulating protective layer, and the detection tooth is set as 4N+4, and N is just less than 9
Integer, the detection coil include magnet exciting coil and signal coil, the external stability terminal protecting cover of the shell, the terminal
Fixing terminal terminals in protective cover, the terminal connections end are divided into excitation terminals and signal terminal, the excitation wiring
End is connect with magnet exciting coil, and the signal terminal is connect with signal terminal.
2. the encoder apparatus according to claim 1 based on a pair of of pole magnetoresistance transformer, which is characterized in that described
Stator is integrally formed by powder metallurgy die casting, and the outer surface of the stator coats corrosion-inhibiting coating, the outer surface of the corrosion-inhibiting coating
Insulating protective layer is set, and the insulating protective layer is set as phenolic resin, and the phenolic resin is also coated on winding detection coil
On detection tooth afterwards.
3. the encoder apparatus according to claim 2 based on a pair of of pole magnetoresistance transformer, which is characterized in that described
It includes upper detection tooth and lower detection tooth to detect tooth, and tooth socket is arranged between the upper and lower detection tooth, is arranged in the tooth socket around column,
Described to wind signal coil on column fixed excitation coil, the upper and lower detection tooth, the magnet exciting coil is set to signal coil
Lower layer, the magnet exciting coil is laterally arranged, and the signal coil is longitudinally disposed.
4. the encoder apparatus according to claim 3 based on a pair of of pole magnetoresistance transformer, which is characterized in that described
Tooth socket is set as rectangular tooth socket or arc slot.
5. the encoder apparatus according to claim 4 based on a pair of of pole magnetoresistance transformer, which is characterized in that described
Magnet exciting coil is to wait circles concentratred winding, and the positive and negative alternate series connection of magnet exciting coil, the signal coil is equal circles concentratred winding, letter
Number coil is connected every tooth reverse phase and is spatially mutually perpendicular to.
6. the encoder apparatus according to claim 5 based on a pair of of pole magnetoresistance transformer, which is characterized in that described
The inside of stator uniformly opens up compensating line ring recess, and three compensative winding copper bars, compensative winding copper are equipped in the compensating line ring recess
The copper bar of strip adoption 20mm × 3mm is made, and is separated two-by-two using insulating paper between three compensative winding copper bars, three compensative windings
Copper bar is separated itself and stator using mica and polyimides, and copper bar is connected two-by-two using welding manner, and compensative winding is made to be formed
One tandem paths.
7. the encoder apparatus according to claim 1 based on a pair of of pole magnetoresistance transformer, which is characterized in that described
The channel-shaped lamination that stator is washed by fe-Ni soft magnetic alloy or silicon plate is built up, and the peakflux density of the stator is 10000-
12000 Gausses.
8. the encoder apparatus based on a pair of of pole magnetoresistance transformer described according to claim 6 or 7, which is characterized in that
The eccentric wheel is built up by fe-Ni soft magnetic alloy piece or silicon plate punching, the salient pole of the nose of the eccentric wheel as rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820167838.3U CN207816296U (en) | 2018-01-31 | 2018-01-31 | Encoder apparatus based on a pair of of pole magnetoresistance transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820167838.3U CN207816296U (en) | 2018-01-31 | 2018-01-31 | Encoder apparatus based on a pair of of pole magnetoresistance transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207816296U true CN207816296U (en) | 2018-09-04 |
Family
ID=63321773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820167838.3U Active CN207816296U (en) | 2018-01-31 | 2018-01-31 | Encoder apparatus based on a pair of of pole magnetoresistance transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207816296U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108562309A (en) * | 2018-01-31 | 2018-09-21 | 制旋科技（深圳）有限公司 | Encoder apparatus based on a pair of of pole magnetoresistance transformer |
| CN110767429A (en) * | 2019-11-01 | 2020-02-07 | 北京动力机械研究所 | Novel reluctance type rotary transformer capable of running at high speed |
-
2018
- 2018-01-31 CN CN201820167838.3U patent/CN207816296U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108562309A (en) * | 2018-01-31 | 2018-09-21 | 制旋科技（深圳）有限公司 | Encoder apparatus based on a pair of of pole magnetoresistance transformer |
| CN108562309B (en) * | 2018-01-31 | 2024-03-22 | 诠脑机电设备（深圳）有限公司 | Encoder apparatus based on a pair of pole reluctance type rotary transformers |
| CN110767429A (en) * | 2019-11-01 | 2020-02-07 | 北京动力机械研究所 | Novel reluctance type rotary transformer capable of running at high speed |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Hong Liu Inventor after: Yu Xiaozhang Inventor before: Hong Liu Inventor before: Yu Xiaozhang |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210105 Address after: 518000 104-105, building 3, Zhonghui anda Industrial Park, Tangtou community, Shiyan street, Bao'an District, Shenzhen City, Guangdong Province Patentee after: QUANNAO MECHANICAL AND ELECTRICAL EQUIPMENT (SHENZHEN) Co.,Ltd. Address before: 518000 floor 1 / F C and 11 / F C surface of innovation cloud Valley factory building h, NO.48 battery Road, No.1 Industrial Zone, Li songxuan community, Gongming street, Guangming New District, Shenzhen City, Guangdong Province Patentee before: SERVE-RESOLVER TECHNOLOGY (SHENZHEN) Co.,Ltd. |