CN109149869A - Magnetic coding disk and magnetic coder - Google Patents
Magnetic coding disk and magnetic coder Download PDFInfo
- Publication number
- CN109149869A CN109149869A CN201811343019.0A CN201811343019A CN109149869A CN 109149869 A CN109149869 A CN 109149869A CN 201811343019 A CN201811343019 A CN 201811343019A CN 109149869 A CN109149869 A CN 109149869A
- Authority
- CN
- China
- Prior art keywords
- magnetic
- disk
- coding disk
- magnetic coding
- pcb board
- 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.)
- Pending
Links
- 238000009434 installation Methods 0.000 claims abstract description 8
- 230000008859 change Effects 0.000 claims abstract description 5
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 7
- VQAPWLAUGBBGJI-UHFFFAOYSA-N [B].[Fe].[Rb] Chemical compound [B].[Fe].[Rb] VQAPWLAUGBBGJI-UHFFFAOYSA-N 0.000 claims description 4
- 229920006351 engineering plastic Polymers 0.000 claims description 4
- 238000005245 sintering Methods 0.000 claims description 4
- 230000011218 segmentation Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910001172 neodymium magnet Inorganic materials 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
- H02K11/215—Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
The present invention discloses a kind of magnetic coding disk comprising disk body and multiple magnetites；Disk body has installation through-hole, and the outer peripheral edge of disk body is equipped with multiple mounting grooves, and multiple mounting grooves surround installation through-hole, and multiple magnetites are set in multiple mounting grooves；Wherein, magnetic coding disk is sheathed in the rotation axis of motor, drives multiple magnetites rotation on magnetic coding disk when motor rotates, and the angle or shift value that magnetic resistance or Hall element change multiple magnetites measure.The present invention also provides a kind of magnetic coders.Magnetic coding disk encoder of the invention realizes the smallest segmentation angle, so that more numbers of pole-pairs are partitioned into, to reach higher precision by the structure of change magnetic coding disk in limited outer dimension.
Description
Technical field
The present invention relates to motor encoder technical fields, and in particular, to a kind of magnetic coding disk and magnetic coder.
Background technique
Magnetic coder is that perhaps its principle of displacement measuring device is using magnetic resistance or Hall element to the novel angle of one kind
The angle variation that perhaps shift value measures magnetic material angle or displacement of the magnetic material of variation can be caused centainly
The variation of resistance or voltage amplifies variable quantity by amplifying circuit, output pulse signal after being handled by single-chip microcontroller
Or analog signals, achieve the purpose that measurement, therefore, in terms of magnetic coder is widely used in angle-controlled motor, still, passes
The magnetic coding disk of the magnetic coder of system is by external form volume and the limitation of material technology, so that the excessive time-division chamfer degree of number of poles is too
It is small, cause magnetizing coil that can not make, to cannot achieve more number of pole-pairs precision.
Summary of the invention
In view of the deficiencies of the prior art, the present invention discloses a kind of magnetic coding disk comprising: disk body and multiple magnetites；Disk body
With installation through-hole, the outer peripheral edge of disk body is equipped with multiple mounting grooves, and multiple mounting grooves surround installation through-hole, and multiple magnetites are set to
In multiple mounting grooves；Wherein, magnetic coding disk is sheathed in the rotation axis of motor, and multiple magnetites on disk body are driven when motor rotates
Rotation, the angle or shift value that magnetic resistance or Hall element change multiple magnetites measure.
According to an embodiment of the present invention, above-mentioned disk body is engineering plastic.
According to an embodiment of the present invention, above-mentioned magnetite is sintering rubidium iron boron.
According to an embodiment of the present invention, the cross section of above-mentioned magnetite is rectangle.
Another aspect of the present invention discloses a kind of magnetic coder, including above-mentioned magnetic coding disk.
According to an embodiment of the present invention, above-mentioned magnetic coder further includes pcb board, and pcb board is sheathed on the rotation of motor
On axis.And between magnetic coding disk and motor.
According to an embodiment of the present invention, above-mentioned pcb board has an at least Hall element, and an at least Hall element is located at
Between multiple magnetites and pcb board.
According to an embodiment of the present invention, above-mentioned pcb board has multiple via holes.
According to an embodiment of the present invention, above-mentioned pcb board has an at least fabrication hole.
The invention has the benefit that magnetic coding disk encoder of the invention is having by the structure of change magnetic coding disk
The smallest segmentation angle is realized in the outer dimension of limit, so that more numbers of pole-pairs are partitioned into, to reach higher precision.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of magnetic coder in the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of magnetic coding disk in the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of pcb board in the embodiment of the present invention.
Specific embodiment
Multiple embodiments of the invention will be disclosed with schema below, as clearly stated, the details in many practices
It will be explained in the following description.It should be appreciated, however, that the details in these practices is not applied to limit the present invention.Also
It is to say, in some embodiments of the invention, the details in these practices is non-essential.In addition, for the sake of simplifying schema,
Some known usual structures and component will be painted it in the drawings in simply illustrative mode.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute is only used in the embodiment of the present invention
In explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, if should
When particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In addition, the description for being such as related to " first ", " second " in the present invention is used for description purposes only, not especially censure
The meaning of order or cis-position, also non-to limit the present invention, the component described just for the sake of difference with same technique term
Or operation, it is not understood to indicate or imply its relative importance or implicitly indicates the number of indicated technical characteristic
Amount." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one of the features.In addition, each
Technical solution between a embodiment can be combined with each other, but must can be implemented as base with those of ordinary skill in the art
Plinth will be understood that the combination of this technical solution is not present when conflicting or cannot achieve when occurs in the combination of technical solution,
Also not the present invention claims protection scope within.
For that can further appreciate that the contents of the present invention, feature and effect, the following examples are hereby given, and cooperates attached drawing detailed
It is described as follows:
Fig. 1, Fig. 2 and Fig. 3 are please referred to, Fig. 1 is the structural schematic diagram of magnetic coder 1 in the embodiment of the present invention, and Fig. 2 is this
The structural schematic diagram of magnetic coding disk 11 in inventive embodiments, Fig. 3 are the structural schematic diagram of pcb board 12 in the embodiment of the present invention.Such as
Shown in figure, the magnetic coder 1 of the application includes magnetic coding disk 11 and pcb board 12.Further, magnetic coding disk 11 includes disk body
111 and multiple magnetites 112.Disk body 111 has installation through-hole 1111, and the outer peripheral edge of disk body 111 is equipped with multiple mounting grooves 1112, more
A mounting groove 1112 surrounds installation through-hole 1111, and multiple magnetites 112 are set in multiple mounting grooves 1112.Further, PCB
Plate 12 has an at least Hall element 121, and at least a Hall element 121 is between multiple magnetites 112 and pcb board 12.
When concrete application, magnetic coding disk 11 and pcb board 12 are sheathed in the rotation axis of motor, and pcb board 12 is located at magnetic
Between coding disk 11 and motor, motor drives rotation axis rotation, to drive disk body 111 to rotate, so that multiple mounting grooves 1112
Interior multiple magnetites 112 rotate with it, and in rotation process, the N/S magnetic pole of multiple magnetites 112 and an at least Hall element 121 are felt
It answers, the corresponding output square-wave signal of an at least Hall element 121, the square-wave signal exported in the unit time is more, the pole being partitioned into
Logarithm is more, to achieve the purpose that higher precision.
Preferably, disk body 111 is engineering plastic.Engineering plastic has good insulating properties, and sound insulation, sound-absorbing, absorbing, disappears
Acoustic performance is brilliant, therefore, will not magnetize to magnetite 112 and cause to limit.
Preferably, magnetite 112 is sintering rubidium iron boron.Sintered NdFeB has excellent magnetic property, can be divided into more
The single magnetic patch of small size, when single sintering rubidium iron boron magnetic patch magnetizes, the magnetizing coil of motor be can not be limited, therefore,
More numbers of pole-pairs can be divided in the identical situation of 111 size of disk body, reach higher precision.
Preferably, the cross section of magnetite 112 is rectangle.Certainly, magnetite 112 can also select cross section for circle according to demand
The magnetite 112 of shape, triangle or other shapes, above are only one embodiment of the present invention, should not be as limit.
Preferably, pcb board 12 has multiple via holes 122.The signal wire of multiple electronic components on pcb board 12 passes through multiple
Via hole 122, in order to avoid interference is generated between each other, to influence normal use.In this implementation, the quantity of via hole 123 is seven, seven
A via hole 123 is arranged as "-" type, and in order to passing through for signal wire, certainly, the quantity of fabrication hole can be increased according to demand
Or reduce, arrangement mode can also be changed according to demand, above are only an embodiment of invention, should not be as limit.
Preferably, pcb board 12 has an at least fabrication hole 123.Fabrication hole 123 plays position-limiting action to pcb board, is convenient for
The processing or plug-in subcomponent of pcb board keep product structure more compact in addition, saving material.In this implementation, the number of fabrication hole 123
Amount is two, and certainly, the quantity of fabrication hole can be increased or be reduced according to demand, above are only an embodiment party of invention
Formula, should not be as limit.
In conclusion magnetic coding disk encoder of the invention is by changing magnetic in one or more embodiments of the invention
The structure of coding disk realizes the smallest segmentation angle in limited outer dimension, so that more numbers of pole-pairs are partitioned into, to reach
To higher precision.
The upper only embodiments of the present invention, are not intended to restrict the invention.For those skilled in the art
For, the invention may be variously modified and varied.All any modifications made in spirit and principles of the present invention are equal
Replacement, improvement etc., should all be included within scope of the presently claimed invention.
Claims (9)
1. a kind of magnetic coding disk, which is characterized in that including disk body and multiple magnetites；The disk body has installation through-hole, the disk
The outer peripheral edge of body is equipped with multiple mounting grooves, and the multiple mounting groove surrounds the installation through-hole, and the multiple magnetite is set to institute
It states in multiple mounting grooves；
Wherein, the magnetic coding disk is sheathed in the rotation axis of motor, and the motor drives described on the disk body when rotating
The angle or shift value that the rotation of multiple magnetites, magnetic resistance or Hall element change the multiple magnetite measure.
2. magnetic coding disk according to claim 1, which is characterized in that the disk body is engineering plastic.
3. magnetic coding disk according to claim 1, which is characterized in that the magnetite is sintering rubidium iron boron.
4. magnetic coding disk according to claim 1, which is characterized in that the cross section of the magnetite is rectangle.
5. a kind of magnetic coder, which is characterized in that including the described in any item magnetic coding disks of claim 1-4.
6. magnetic coder according to claim 5, which is characterized in that the magnetic coder further includes pcb board, the PCB
Sleeve-board is set in the rotation axis of the motor.And between the magnetic coding disk and the motor.
7. magnetic coder according to claim 6, which is characterized in that the pcb board has an at least Hall element, described
At least a Hall element is between the multiple magnetite and the pcb board.
8. magnetic coder according to claim 6, which is characterized in that the pcb board has multiple via holes.
9. magnetic coder according to claim 6, which is characterized in that the pcb board has an at least fabrication hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811343019.0A CN109149869A (en) | 2018-11-13 | 2018-11-13 | Magnetic coding disk and magnetic coder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811343019.0A CN109149869A (en) | 2018-11-13 | 2018-11-13 | Magnetic coding disk and magnetic coder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109149869A true CN109149869A (en) | 2019-01-04 |
Family
ID=64805745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811343019.0A Pending CN109149869A (en) | 2018-11-13 | 2018-11-13 | Magnetic coding disk and magnetic coder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109149869A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112344969A (en) * | 2020-11-17 | 2021-02-09 | 湖南航天磁电有限责任公司 | Off-axis single-ring multi-antipode absolute magnetic encoder |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201387335Y (en) * | 2009-04-01 | 2010-01-20 | 邱召运 | Hall rotary encoder |
| CN204835834U (en) * | 2015-07-22 | 2015-12-02 | 深圳曼塔智能科技有限公司 | Magnetism code motor |
| CN205911911U (en) * | 2016-08-25 | 2017-01-25 | 徐连胜 | Motor magnetism encoder mounting structure |
| CN106931996A (en) * | 2017-04-20 | 2017-07-07 | 湖州太平微特电机有限公司 | A kind of encoder |
| CN107026539A (en) * | 2017-05-22 | 2017-08-08 | 华中科技大学 | Integrated magnetic coder and Hall switch determine the external rotor permanent magnet synchronous machine of position |
| CN108768086A (en) * | 2018-09-05 | 2018-11-06 | 江苏领新电气科技有限公司 | A kind of mounting structure of external rotor electric machine encoder |
-
2018
- 2018-11-13 CN CN201811343019.0A patent/CN109149869A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201387335Y (en) * | 2009-04-01 | 2010-01-20 | 邱召运 | Hall rotary encoder |
| CN204835834U (en) * | 2015-07-22 | 2015-12-02 | 深圳曼塔智能科技有限公司 | Magnetism code motor |
| CN205911911U (en) * | 2016-08-25 | 2017-01-25 | 徐连胜 | Motor magnetism encoder mounting structure |
| CN106931996A (en) * | 2017-04-20 | 2017-07-07 | 湖州太平微特电机有限公司 | A kind of encoder |
| CN107026539A (en) * | 2017-05-22 | 2017-08-08 | 华中科技大学 | Integrated magnetic coder and Hall switch determine the external rotor permanent magnet synchronous machine of position |
| CN108768086A (en) * | 2018-09-05 | 2018-11-06 | 江苏领新电气科技有限公司 | A kind of mounting structure of external rotor electric machine encoder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112344969A (en) * | 2020-11-17 | 2021-02-09 | 湖南航天磁电有限责任公司 | Off-axis single-ring multi-antipode absolute magnetic encoder |
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