CN205228479U - Magnetic encoder - Google Patents
Magnetic encoder Download PDFInfo
- Publication number
- CN205228479U CN205228479U CN201520986634.9U CN201520986634U CN205228479U CN 205228479 U CN205228479 U CN 205228479U CN 201520986634 U CN201520986634 U CN 201520986634U CN 205228479 U CN205228479 U CN 205228479U
- Authority
- CN
- China
- Prior art keywords
- wiring board
- magnet steel
- back cover
- bearing
- magnetic coder
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model provides a magnetic encoder, which comprises a front housing and a back housing, preceding shell and backshell nested contact form the cavity, be equipped with encoder axle, bearing, magnet steel and circuit board in the cavity, it feels the chip to be equipped with magnetism on the circuit board, the front end of encoder axle stretches out outside preceding shell, the bearing housing is established at the encoder epaxially, the back pot head of encoder axle is established on the magnet steel, magnetism is felt the chip and is located the rear portion of magnet steel corresponds with the magnet steel, the circuit board is connected with the backshell. Adopt the technical scheme of the utility model, simple structure, small, the precision is high, and is easy to assemble, and can with general optical encoder interface compatibility at present, it is nimble to connect output, the cost is reduced.
Description
Technical field
The utility model relates to a kind of magnetic coder.
Background technology
Scrambler is a kind of equipment angular displacement or displacement of the lines being converted to electric signal.The scrambler used in the market mainly optical encoder, along with the raising of precision and the reduction of size, its price is also significantly improved, larger to the cost impact of product.Magnetic coder is the scrambler that a kind of change by magnetic field is converted into electric impulse signal output.Its major advantage is, volume is little, precision is high, and performance and optical encoder do not have too large difference.But current magnetic coder cost is higher.
Utility model content
For above technical matters, the utility model provides a kind of magnetic coder, and structure is simple, and in the high-precision performance of maintenance simultaneously, cost is lower.
To this, the technical solution of the utility model is:
A kind of magnetic coder, comprises fore shell and back cover, and described fore shell and back cover nested encryptions form cavity, and be provided with scrambler axle, bearing, magnet steel and wiring board in described cavity, described wiring board is provided with magnetic strength chip; The front end of described scrambler axle stretches out in outside fore shell, and described bearing holder (housing, cover) is located on scrambler axle, and the rear end of described scrambler axle is set on magnet steel, and described magnetic strength chip is positioned at the rear portion of described magnet steel and corresponding with magnet steel, and described wiring board is connected with back cover.
As further improvement of the utility model, the distance between described magnetic strength chip and magnet steel is less than 0.5mm.
As further improvement of the utility model, described wiring board comprises circular installation end and stretches out in the interface end of circular installation end; Described installation end is connected with back cover, and described magnetic strength chip is located at the middle part of installation end; Described interface end is provided with components and parts and connector.
As further improvement of the utility model, the circular portion diameter of described installation end is 11 ~ 15mm.Be preferably 13mm.
As further improvement of the utility model, described installation end is connected by M2 countersunk head screw with back cover.
As further improvement of the utility model, described wiring board comprises the identical A version wiring board of profile and B version wiring board, and described A version wiring board is identical with the connector of B version wiring board; Described A version wiring board comprises MA700 chip, both can export A, B, Z signal, and can export spi bus signal again; Described B version wiring board comprises MLX90316 chip, both can output pwm signal, can export spi bus signal again.The connector of described A version wiring board and B version wiring board is preferably and current general optical encoder interface compatibility.
As further improvement of the utility model, described back cover is provided with the step of L shape, and described fore shell is connected with the step of L shape.
As further improvement of the utility model, described magnet steel is torus, and described magnet steel is from centre along axis dimidiation, and half is N pole, and second half is S pole.
As further improvement of the utility model, the quantity of described bearing is two, and be respectively clutch shaft bearing and the second bearing, described clutch shaft bearing is connected with fore shell, scrambler axle respectively, and described second bearing is connected with back cover, scrambler axle respectively.
As further improvement of the utility model, be fixedly connected with by grub screw between described fore shell and back cover.
Compared with prior art, the beneficial effects of the utility model are:
Adopt the technical solution of the utility model, structure is simple, and volume is little, precision is high, conveniently installs, and can with current general optical encoder interface compatibility, connect and export flexibly, reduce cost.
Accompanying drawing explanation
Fig. 1 is the perspective view of a kind of embodiment of the utility model.
Fig. 2 is the schematic cross-section of a kind of embodiment magnetic coder of the utility model.
Fig. 3 is a kind of embodiment magnetic coder of the utility model inner structure schematic diagram.
Fig. 4 is the contour structures schematic diagram of the wiring board of a kind of embodiment magnetic coder of the utility model.
Fig. 5 is the interface diagram of a kind of embodiment magnetic coder of the utility model A version wiring board.
Fig. 6 is the interface diagram of a kind of embodiment magnetic coder of the utility model B version wiring board.
Embodiment
Below in conjunction with accompanying drawing, preferably embodiment of the present utility model is described in further detail.
As shown in Fig. 1 ~ Fig. 3, a kind of magnetic coder, comprises fore shell 1 and back cover 2, and described back cover 2 is provided with the step 21 of L shape, and described fore shell 1 is connected with the step 21 of L shape, is fixedly connected with between described fore shell 1 and back cover 2 by grub screw.Described fore shell 1 and back cover 2 nested encryptions form cavity, and be provided with scrambler axle 3, bearing 4, magnet steel 5 and wiring board 6 in described cavity, described wiring board 6 is provided with magnetic strength chip 7; The front end of described scrambler axle 3 stretches out in outside fore shell 1, and described bearing 4 is set on scrambler axle 3, can forward and reversely freely rotate.The rear end of described scrambler axle 3 is set on magnet steel 5, and described magnetic strength chip 7 is positioned at the rear portion of described magnet steel 5 and corresponding with magnet steel 5, and described wiring board 6 is connected with back cover 2.The quantity of described bearing 4 is two, and be respectively clutch shaft bearing 41 and the second bearing 42, described clutch shaft bearing 41 is connected with fore shell 1, scrambler axle 3 respectively, and described second bearing 42 is connected with back cover 2, scrambler axle 3 respectively.Described magnet steel 5 is torus, and described magnet steel 5 is from centre along axis dimidiation, and half is N pole, and second half is S pole.When magnet steel 5 rotates along with scrambler axle 3 time, magnetic strength chip 7 can sense the change of magnet steel 5 surrounding magnetic field, with the change by this magnetic field in a pulsed fashion or spi bus signal export.
As shown in Figure 3 and Figure 4, described wiring board 6 comprises circular installation end 61 and stretches out in the interface end 62 of circular installation end; Described installation end 61 is connected with back cover 2, and described magnetic strength chip 7 is located at the middle part of installation end 61; Described interface end 62 is provided with components and parts and connector.The circular portion diameter of described installation end 61 is 13mm.Described installation end 61 is connected by M2 countersunk head screw with back cover 2.On installation end 61, M2 countersunk head screw occupies the very large space of PCBA, causes the space of layout components and parts very limited, so wiring board 6 stretches out a part as interface end 62 from the installation end 61 of circle, is used for placing components and parts and connector.Better can adapt to the special dimensional requirement of banknote identification module like this.
Preferably, described wiring board 6 comprises the identical A version wiring board of profile and B version wiring board, and described A version wiring board is identical with the connector of B version wiring board; Described A version wiring board comprises MA700 chip, and both can export A, B, Z signal, and can export spi bus signal again, interface as shown in Figure 5; Described B version wiring board comprises MLX90316 chip, both can output pwm signal, and can export spi bus signal again, interface as shown in Figure 6.The connector of described A version wiring board and B version wiring board and current general optical encoder interface compatibility.A version wiring board and B version circuit board structure size just the same, both relations alternative each other.Adopt this kind of technical scheme, enhance the compatibility of magnetic coder, and can multi-signal be exported.
In order to flexible use, host computer configures the register of magnetic strength chip internal by SPI, thus determines type and the encoding precision of output signal, and 10 bit registers can often to rotate a circle the precision of output 1024 pulses in the highest realization.
The embodiment of the above is better embodiment of the present utility model; not limit concrete practical range of the present utility model with this; scope of the present utility model comprises and is not limited to this embodiment, and the equivalence change that all shapes according to the utility model, structure are done is all in protection domain of the present utility model.
Claims (10)
1. a magnetic coder, is characterized in that: comprise fore shell and back cover, and described fore shell and back cover nested encryptions form cavity, and be provided with scrambler axle, bearing, magnet steel and wiring board in described cavity, described wiring board is provided with magnetic strength chip; The front end of described scrambler axle stretches out in outside fore shell, and described bearing holder (housing, cover) is located on scrambler axle, and the rear end of described scrambler axle is set on magnet steel, and described magnetic strength chip is positioned at the rear portion of described magnet steel and corresponding with magnet steel, and described wiring board is connected with back cover.
2. magnetic coder according to claim 1, is characterized in that: the distance between described magnetic strength chip and magnet steel is less than 0.5mm.
3. magnetic coder according to claim 1, is characterized in that: described wiring board comprises circular installation end and stretches out in the interface end of circular installation end; Described installation end is connected with back cover, and described magnetic strength chip is located at the middle part of installation end; Described interface end is provided with components and parts and connector.
4. magnetic coder according to claim 3, is characterized in that: the circular portion diameter of described installation end is 11 ~ 15mm.
5. magnetic coder according to claim 4, is characterized in that: described installation end is connected by M2 countersunk head screw with back cover.
6. the magnetic coder according to claim 1 ~ 5 any one, is characterized in that: described wiring board comprises the identical A version wiring board of profile and B version wiring board, and described A version wiring board and B version wiring board include identical connector; Described A version wiring board comprises MA700 chip; Described B version wiring board comprises MLX90316 chip.
7. the magnetic coder according to claim 1 ~ 5 any one, is characterized in that: described back cover is provided with the step of L shape, and described fore shell is connected with the step of L shape.
8. the magnetic coder according to claim 1 ~ 5 any one, is characterized in that: described magnet steel is torus, and described magnet steel is from centre along axis dimidiation, and half is N pole, and second half is S pole.
9. magnetic coder according to claim 8, it is characterized in that: the quantity of described bearing is two, be respectively clutch shaft bearing and the second bearing, described clutch shaft bearing is connected with fore shell, scrambler axle respectively, and described second bearing is connected with back cover, scrambler axle respectively.
10. magnetic coder according to claim 9, is characterized in that: be fixedly connected with by grub screw between described fore shell and back cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520986634.9U CN205228479U (en) | 2015-12-02 | 2015-12-02 | Magnetic encoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520986634.9U CN205228479U (en) | 2015-12-02 | 2015-12-02 | Magnetic encoder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205228479U true CN205228479U (en) | 2016-05-11 |
Family
ID=55903536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520986634.9U Expired - Fee Related CN205228479U (en) | 2015-12-02 | 2015-12-02 | Magnetic encoder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205228479U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345976A (en) * | 2019-07-26 | 2019-10-18 | 浙江禾川科技股份有限公司 | A kind of optomagnetic hybrid coder system |
-
2015
- 2015-12-02 CN CN201520986634.9U patent/CN205228479U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345976A (en) * | 2019-07-26 | 2019-10-18 | 浙江禾川科技股份有限公司 | A kind of optomagnetic hybrid coder system |
| CN110345976B (en) * | 2019-07-26 | 2020-03-27 | 浙江禾川科技股份有限公司 | Magneto-optical hybrid encoder system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20160511 Termination date: 20211202 |