CN207816298U - Axial end reflecting light electric position sensor - Google Patents
Axial end reflecting light electric position sensor Download PDFInfo
- Publication number
- CN207816298U CN207816298U CN201720305902.5U CN201720305902U CN207816298U CN 207816298 U CN207816298 U CN 207816298U CN 201720305902 U CN201720305902 U CN 201720305902U CN 207816298 U CN207816298 U CN 207816298U
- Authority
- CN
- China
- Prior art keywords
- machine shaft
- face
- light
- position sensor
- reflector space
- 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
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Abstract
The utility model provides a kind of axial end reflecting light electric position sensor, belongs to position detecting device field, is detected especially suitable for motor rotor position.Including machine shaft, the end face of machine shaft one end is equipped with reflector space and non-reflecting regions, reflector space and non-reflecting regions are arranged alternately, and it is uniform or heterogeneous be as required distributed on the end face of machine shaft, photocurrent generator and photelectric receiver are additionally provided in motor housing, photocurrent generator is mounted in the casing of motor, its light emitted is allow to be irradiated to the end face of machine shaft, and photelectric receiver is located on the path of the light after reflection.The noise and air drag that position detecting device can be reduced, will not cause fractureing for shading tooth.
Description
Technical field
The utility model provides a kind of axial end reflecting light electric position sensor, belongs to position detecting device field, special
It Shi Yongyu not motor rotor position detection.
Background technology
During the work time, machine shaft is equipped with position detecting device to motor, and position detecting device includes light source
Device, optical receiver apparatus and rotation flute profile blanking disc, rotation flute profile blanking disc be located at light source generator and optical receiver apparatus it
Between, when tooth blocks between light source generator and optical receiver apparatus, position sensor exports low level, is located at light in backlash
When between source generating means and optical receiver apparatus, position sensor exports high level, passes through the transformation of low and high level, so that it may in terms of
Calculate the position of rotor.
Existing rotation flute profile blanking disc is used to have the following problems when high-speed electric expreess locomotive：
（1）With the high-speed rotation of motor, flute profile blanking disc will produce larger airborne noise, and improve high-speed electric expreess locomotive
Overall noise it is horizontal, reduce electric efficiency；
（2）The shading tooth of another blanking disc is parallel to motor shaft, and the blanking disc of this structure not only will produce larger
Noise, and in motor high-speed rotation, the shading tooth perpendicular to turntable can issue raw bending, shake in huge centrifugation force effect
It moves or fractures, cause motor operation failure.
Invention content
The utility model aim is to provide a kind of axial end reflecting light electric position sensor, can reduce position detection
The noise and air drag of device, will not cause fractureing for shading tooth.
Axial end reflecting light electric position sensor described in the utility model, including machine shaft, machine shaft one end
End face be equipped with reflector space and non-reflecting regions, reflector space and non-reflecting regions are arranged alternately, and uniformly or as required
It is heterogeneous to be distributed on the end face of machine shaft, photocurrent generator and photelectric receiver, photoelectricity hair are additionally provided in motor housing
Raw device is mounted in the casing of motor, its light emitted is allow to be irradiated to the end face of machine shaft, and photelectric receiver is located at
On the path of light after reflection.
The utility model has the beneficial effect that compared with prior art：
The axial end reflecting light electric position sensor has given up the use of blanking disc compared with the existing technology, complete
Full the problem of avoiding noise caused by shading tooth, vibrating and fracture, reflector space and non-reflecting regions by black-out paint and
Reflectorised paint machine shaft end face is divided into, reflector space spray reflectorised paint or be machine shaft burnishing surface, can reflection light, it is non-
Reflector space is black-out paint, not reflection light.When rotated, photocurrent generator is radiated at the light in axial end will for machine shaft
When and received by photelectric receiver, photelectric receiver can according to whether light can be received monitor machine shaft turn
Speed and position, and the installation site of photocurrent generator and photelectric receiver can be very close to, and again with machine shaft end face
It is very close, space is greatly saved, the smaller for alloing motor housing to make.
Description of the drawings
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is utility model works schematic diagram；
Fig. 3 is uneven reflector space and non-reflecting regions structural schematic diagram.
In figure：1, reflector space；2, non-reflecting regions；3, photocurrent generator；4, photelectric receiver.
Specific implementation mode
The utility model embodiment is described further with reference to the utility model：
Embodiment 1：As depicted in figs. 1 and 2, axial end reflecting light electric position sensor described in the utility model, packet
Machine shaft is included, the end face of machine shaft one end is equipped with reflector space 1 and non-reflecting regions 2, reflector space 1 and non-reflective
Domain 2 is arranged alternately, and is uniformly distributed on the end face of machine shaft, and photocurrent generator 3 and photoelectricity are additionally provided in motor housing
Receiver 4, photocurrent generator 3 are mounted in the casing of motor, its light emitted is allow to be irradiated to the end face of machine shaft,
Photelectric receiver 4 is located on the path of the light after light.
Embodiment 2：As shown in figure 3, axial end reflecting light electric position sensor described in the utility model, motor turns
The end face of axis, machine shaft one end is equipped with reflector space 1 and non-reflecting regions 2, and reflector space 1 and non-reflecting regions 2 replace
Setting, and it is non-uniform be distributed on the end face of machine shaft, the numbers of reflector space 1 and non-reflecting regions 2 regards actual conditions
Needs depending on, be additionally provided with photocurrent generator 3 and photelectric receiver 4 in motor housing, photocurrent generator 3 is mounted on the machine of motor
In shell, its light emitted is allow to be irradiated to the end face of machine shaft, photelectric receiver 4 is located at the path of the light after reflection
On.
Claims (1)
1. a kind of axial end reflecting light electric position sensor, including machine shaft, which is characterized in that the end of machine shaft one end
Face is equipped with reflector space（1）The non-reflecting regions and（2）, reflector space（1）The non-reflecting regions and（2）It is arranged alternately, and uniformly
Or it is heterogeneous be distributed on the end face of machine shaft, photocurrent generator is additionally provided in motor housing（3）And photelectric receiver
（4）, photocurrent generator（3）In the casing of motor, its light emitted is allow to be irradiated to the end face of machine shaft, light
Electric receiver（4）On the path of light after reflection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720305902.5U CN207816298U (en) | 2017-03-27 | 2017-03-27 | Axial end reflecting light electric position sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720305902.5U CN207816298U (en) | 2017-03-27 | 2017-03-27 | Axial end reflecting light electric position sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207816298U true CN207816298U (en) | 2018-09-04 |
Family
ID=63335522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720305902.5U Expired - Fee Related CN207816298U (en) | 2017-03-27 | 2017-03-27 | Axial end reflecting light electric position sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207816298U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110793555A (en) * | 2019-12-05 | 2020-02-14 | 北京高博云电子技术有限公司 | Shaft end tooth-shaped photoelectric position sensor |
-
2017
- 2017-03-27 CN CN201720305902.5U patent/CN207816298U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110793555A (en) * | 2019-12-05 | 2020-02-14 | 北京高博云电子技术有限公司 | Shaft end tooth-shaped photoelectric position sensor |
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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 |
Granted publication date: 20180904 Termination date: 20210327 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |