CN108267158A - Angular encoder structure - Google Patents
Angular encoder structure Download PDFInfo
- Publication number
- CN108267158A CN108267158A CN201810189030.XA CN201810189030A CN108267158A CN 108267158 A CN108267158 A CN 108267158A CN 201810189030 A CN201810189030 A CN 201810189030A CN 108267158 A CN108267158 A CN 108267158A
- Authority
- CN
- China
- Prior art keywords
- shell
- inner tube
- outer barrel
- circuit board
- connecting tube
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
- G01D3/028—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
The present invention provides a kind of angular encoder structure, including main shaft, shell, circuit board mount, wiring board, receiving sensor chip, encoder code disc, electrostriction pad, control assembly and temperature sensor；Main shaft includes the outer barrel and inner tube of coaxial arrangement, one end of inner tube is connect with the inner bottom wall of the outer barrel, one end grafting of said inner tube is in the housing, one end of shell is plugged in the gap between said inner tube and the outer barrel, mounting groove is provided on one end far from the outer barrel of inner tube, one end of the electrostriction pad is installed in the mounting groove, and the other end of the electrostriction pad is connect with the encoder code disc；The circuit board mount is set on the inner wall of one end far from the outer barrel of the shell, the wiring board is set on the circuit board mount, the one side of the direction encoder code disc that the receiving sensor chip is set to the wiring board is simultaneously opposite with the encoder code disc, and temperature sensor is set on main shaft.
Description
Technical field
The present invention relates to the communications field, more particularly to a kind of angular encoder structure.
Background technology
Angular encoder is a kind of sensor for the detection of high-accuracy rotation angle, and high-accuracy angular encoder is extensive
For the occasions such as servo motor feedback, high-accuracy turntable, main shaft orientation.Angular encoder core component include encoder code disc and
Receiving sensor.Wherein, encoder code disc and receiving sensor are respectively arranged on encoder main shaft and circuit board mount.It receives
More's item that sensor is formed using the receiving sensor of reflection or transmitted light source after encoder code disc in the circuit board
Line generates sine wave signal, and is output on system processor, for the location information of feedback angle encoder.
On being normally applied, due to temperature change, encoder main shaft and circuit board mount will be caused to expand deformation.This
When be bonded in and lead to encoder code disc on encoder main shaft and installation and the relative distance of the wiring board on circuit board mount
It will shift, and distance between the two is to determine a key factor of code device signal quality.The sine wave of generation
The positional precision that signal quality will influence feedback, therefore, temperature change changes the positional precision for leading to encoder feedback.
Therefore, the prior art is defective, needs to improve.
Invention content
The embodiment of the present invention provides a kind of angular encoder structure, can be with the accuracy in detection of angular encoder structure.
The embodiment of the present invention provides a kind of angular encoder structure, including main shaft, shell, circuit board mount, wiring board, connects
Receive sensor chip, encoder code disc, electrostriction pad, control assembly and temperature sensor；
The main shaft includes the outer barrel of coaxial arrangement and inner tube, one end of said inner tube are connect with the inner bottom wall of the outer barrel,
The internal diameter of the outer barrel is more than the outer diameter of said inner tube；
In the housing, one end of the shell is plugged between said inner tube and the outer barrel for one end grafting of said inner tube
Gap in, be provided with mounting groove on one end far from the outer barrel of said inner tube, one end installation of the electrostriction pad
In in the mounting groove, the other end of the electrostriction pad is connect with the encoder code disc；The circuit board mount setting
In on the inner wall of one end far from the outer barrel of the shell, the wiring board is set on the circuit board mount, described
Receiving sensor chip be set to the one side of the direction encoder code disc of the wiring board and with the encoder code disc phase
Right, the temperature sensor is set on the main shaft；
The control assembly is electrically connected with the electrostriction pad and the temperature sensor, and the control assembly is used for
The temperature detected according to the temperature sensor controls the voltage at the electrostriction pad both ends, so as to control described electroluminescent stretch
Contract the length along main shaft axial direction padded.
Preferably, elastomeric isolation set is further included, the elastomeric isolation set is socketed in one that said inner tube is inserted into the shell
On end, the mutual elasticity of madial wall of the lateral wall and the shell of the elastomeric isolation set is supported.
Preferably, the shell is in ladder tubulose.
Preferably, the circuit board mount is connected through a screw thread with the shell.
Preferably, the circuit board mount is connected with shell interference fit.
Preferably, the circuit board mount includes the first connecting tube and the second connection of interconnection and coaxial arrangement
Pipe, the radius of first connecting tube are more than the radius of second connecting tube, first connecting tube and the cage connection,
Pre-determined distance is spaced between second connecting tube and the madial wall of the shell；
The wiring board is installed on one end far from first connecting tube of second connecting tube.
Preferably, first electrode layer and the second electrode lay are further included, the first electrode layer is set to the mounting groove
Bottom wall on, the second electrode lay is set on the encoder code disc, the control assembly respectively with the first electrode
Layer and the second electrode lay electrical connection, the first electrode layer and the second electrode lay both ends with the electrostriction pad respectively
Electrical connection.
Preferably, the control assembly includes control chip and driving circuit, the control chip and driving circuit
It may be contained on the wiring board, the control chip is electrically connected with the driving circuit, the driving circuit and described first
Electrode layer and the second electrode lay are electrically connected.
Preferably, the quantity of the mounting groove is two, and the electrostriction pad is two and is in the form of a column respectively.
Preferably, the quantity of the mounting groove is one, and the quantity of the electrostriction pad is 1, and the mounting groove is in
Ring-type, the electrostriction pad are annular in shape.
Description of the drawings
Fig. 1 is the structure diagram of the angular encoder in the embodiment of the present invention.
Fig. 2 is the structure diagram of the main shaft of the angular encoder in the embodiment of the present invention.
Fig. 3 is the structure diagram of the shell of the angular encoder in the embodiment of the present invention.
Specific embodiment
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer ", " up time
The orientation or position relationship of the instructions such as needle ", " counterclockwise " are based on orientation shown in the drawings or position relationship, are for only for ease of
The description present invention and simplified description rather than instruction imply that signified device or element must be with specific orientation, Yi Te
Fixed azimuth configuration and operation, therefore be not considered as limiting the invention.In addition, term " first ", " second " are only used for
Purpose is described, and it is not intended that instruction or hint relative importance or the implicit quantity for indicating indicated technical characteristic.
" first " is defined as a result, and the feature of " second " can be expressed or implicitly includes one or more feature.
In description of the invention, " multiple " are meant that two or more, unless otherwise specifically defined.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or be integrally connected；It can
To be mechanical connection or electrical connection or can mutually communicate；It can be directly connected, it can also be by between intermediary
It connects connected, can be the interaction relationship of connection inside two elements or two elements.For the ordinary skill of this field
For personnel, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature it " on " or it " under "
It can be in direct contact including the first and second features, it is not to be in direct contact but pass through it that can also include the first and second features
Between other characterisation contact.Moreover, fisrt feature second feature " on ", " top " and " above " including first spy
Sign is right over second feature and oblique upper or is merely representative of fisrt feature level height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " immediately below second feature and obliquely downward or be merely representative of including fisrt feature
Fisrt feature level height is less than second feature.
Following disclosure provides many different embodiments or example is used for realizing the different structure of the present invention.In order to
Simplify disclosure of the invention, hereinafter the component of specific examples and setting are described.Certainly, they are merely examples, and
And it is not intended to limit the present invention.In addition, the present invention can in different examples repeat reference numerals and/or reference letter,
This repetition is for purposes of simplicity and clarity, itself not indicate between discussed various embodiments and/or setting
Relationship.In addition, the present invention provides various specific techniques and material example, but those of ordinary skill in the art can be with
Recognize the application of other techniques and/or the use of other materials.
Fig. 1 is please referred to, the embodiment of the present invention provides a kind of angular encoder structure, including shell 10, main shaft 20, wiring board
Stent 30, encoder code disc 40, electrostriction pad 50, control assembly, temperature sensor, receiving sensor chip 60, wiring board
70th, elastomeric isolation set 80.
Wherein, referring to Fig. 2, which includes the outer barrel 21 of coaxial arrangement and inner tube 22, and inner tube 22 is in circle
Tubulose, the outer barrel 21 are cylindrical.One end of inner tube 22 is connect with the inner bottom wall of outer barrel 21, and one end of inner tube 22 is plugged on shell
In 10, one end of shell 10 is plugged in the gap between inner tube 22 and outer barrel 21.Elastomeric isolation set 80 is socketed in said inner tube
22 are inserted on one end of the shell 10, and the madial wall of 80 lateral walls and the shell 10 of the elastomeric isolation set is mutually elastic
It supports.
Wherein, it is provided with mounting groove on one end far from the outer barrel 21 of inner tube 22, the one of the electrostriction pad 50
End is installed in the mounting groove, and the other end of the electrostriction pad 50 is connect with the encoder code disc 40；The circuit
Board mount 30 is set on the inner wall of one end far from the outer barrel of the shell 10, and the wiring board 70 is set to the line
On road board mount 30, receiving sensor chip 60 is set to the one side of the direction encoder code disc 40 of the wiring board 70 simultaneously
Opposite with encoder code disc 40, the temperature sensor is set on main shaft 20.
Control assembly is electrically connected with electrostriction pad 50 and temperature sensor, and control assembly is used for according to the temperature
The temperature that degree sensor detects controls the voltage at 50 both ends of electrostriction pad, so as to control the electrostriction pad 50
Along the axial length of the main shaft 20.
Wherein, which sets according to the coefficient of expansion being affected by temperature of the main shaft 20 and circuit board mount 30
When the temperature for receiving temperature sensor detection, electrostriction pad 50 is supplied to according to the function to control for a fixed function
Voltage swing, so as to control the length of electrostriction pad 50.When temperature is higher, main shaft 20 and circuit board mount 30 expand
When, the length of electrostriction pad 50 is smaller.When temperature is relatively low, and main shaft 20 and circuit board mount 30 are shunk, electrostriction pad
50 length is larger.So that the testing result of angular encoder structure is not acted upon by temperature changes, so as to improve
The accuracy of detection.
The main shaft 20, circuit board mount 30 are made of identical material so that it is with identical effect of expanding with heat and contract with cold.
Specifically, which is in ladder tubulose.Circuit board mount 30 is connected through a screw thread with the shell 10.Or
Person, circuit board mount 30 are connected with the shell 10 interference fit.
Circuit board mount 30 includes being connected with each other and the first connecting tube 31 and the second connecting tube 32 of coaxial arrangement, described
The radius of first connecting tube 31 is more than the radius of second connecting tube 32, and first connecting tube 31 connects with the shell 10
It connects, pre-determined distance is spaced between second connecting tube 32 and the madial wall of the shell 10；The wiring board 70 is installed on institute
It states on one end far from first connecting tube 31 of the second connecting tube 32.
Referring to Fig. 3, shell 10 includes being connected with each other and the third connecting tube 11 and the 4th of coaxial arrangement connects
Pipe 22, one end of the third connecting tube 11 of shell 10 are plugged in the gap between inner tube 22 and outer barrel 21.
In some embodiments, angular encoder structure further includes first electrode layer and the second electrode lay.First electrode
On the bottom wall of mounting groove that layer is set to inner tube 22, the second electrode lay is set on the encoder code disc 40, the control
Component processed is electrically connected respectively with the first electrode layer and the second electrode lay, the first electrode layer and the second electrode lay point
Both ends not with the electrostriction pad 50 are electrically connected.First electrode layer and the second electrode lay are silver-coated electrode layer.
In some embodiments, control assembly includes control chip and driving circuit, the control chip and
Driving circuit may be contained on the wiring board, and the control chip is electrically connected with the driving circuit, the driving electricity
Road is electrically connected with the first electrode layer and the second electrode lay.
In some embodiments, the quantity of mounting groove is two, and the electrostriction pad 50 is two and difference
It is in the form of a column.
In some embodiments, the quantity of mounting groove is one, and the quantity of the electrostriction pad 50 is 1, the peace
Tankage is annular in shape, and the electrostriction pad 50 is annular in shape.
In some embodiments, it is provided with limiting on the end face of one end of the direction of the circuit board mount wiring board 70
It sells, is provided with limit hole on the corresponding wiring board, which can axially slidably be plugged on limiting along limit hole
Kong Zhong, so as to fulfill the limiting to wiring board.
In the description of this specification, reference term " embodiment ", " is schematically implemented " certain embodiments "
The description of mode ", " example ", " specific example " or " some examples " etc. means with reference to the embodiment or example description
Particular features, structures, materials, or characteristics are contained at least one embodiment or example of the present invention.In this specification
In, schematic expression of the above terms are not necessarily referring to identical embodiment or example.Moreover, the specific spy of description
Sign, structure, material or feature can in an appropriate manner combine in any one or more embodiments or example.
In conclusion although the present invention is disclosed above with preferred embodiment, above preferred embodiment is not to limit
The system present invention, those of ordinary skill in the art without departing from the spirit and scope of the present invention, can make various changes and profit
Decorations, therefore protection scope of the present invention is subject to the range that claim defines.
Claims (6)
1. a kind of angular encoder structure, which is characterized in that including main shaft, shell, circuit board mount, wiring board, receive sensing
Device chip, encoder code disc, electrostriction pad, control assembly and temperature sensor；
The main shaft includes the outer barrel of coaxial arrangement and inner tube, one end of said inner tube are connect with the inner bottom wall of the outer barrel,
One end grafting of said inner tube in the housing, between one end of the shell is plugged between said inner tube and the outer barrel
In gap, mounting groove is provided on one end far from the outer barrel of said inner tube, one end of the electrostriction pad is installed on institute
It states in mounting groove, the other end of the electrostriction pad is connect with the encoder code disc；The circuit board mount is set to institute
It states on the inner wall of one end far from the outer barrel of shell, the wiring board is set on the circuit board mount, the reception
Sensor chip is set to the one side of the direction encoder code disc of the wiring board and, institute opposite with the encoder code disc
Temperature sensor is stated to be set on the main shaft；
The control assembly is electrically connected with the electrostriction pad and the temperature sensor, and the control assembly is used for
The temperature detected according to the temperature sensor controls the voltage at the electrostriction pad both ends, so as to control described electroluminescent stretch
Contract the length along main shaft axial direction padded；
The quantity of the mounting groove is one, and the quantity of the electrostriction pad is 1, and the mounting groove is annular in shape, the electricity
Cause expansion pad annular in shape；
Elastomeric isolation set is further included, the elastomeric isolation set is socketed in said inner tube and is inserted on one end of the shell, the bullet
The mutual elasticity of madial wall of the lateral wall and the shell of sexual isolation set is supported；
First electrode layer and the second electrode lay are further included, the first electrode layer is set on the bottom wall of the mounting groove, institute
It states the second electrode lay to be set on the encoder code disc, the control assembly is electric with the first electrode layer and second respectively
Pole layer electrical connection, the both ends of the first electrode layer and the second electrode lay respectively with the electrostriction pad are electrically connected；
The first electrode layer and the second electrode lay are silver-coated electrode layer.
2. angular encoder structure according to claim 1, which is characterized in that the shell is in ladder tubulose.
3. angular encoder structure according to claim 1, which is characterized in that the circuit board mount leads to the shell
Cross threaded connection.
4. angular encoder structure according to claim 1, which is characterized in that the circuit board mount and the shell mistake
It is full of mating connection.
5. angular encoder structure according to claim 1, which is characterized in that the circuit board mount includes being connected with each other
And the first connecting tube and the second connecting tube of coaxial arrangement, the radius of first connecting tube are more than second connecting tube
Radius, first connecting tube and the cage connection are spaced pre- between second connecting tube and the madial wall of the shell
If distance；
The wiring board is installed on one end far from first connecting tube of second connecting tube.
6. angular encoder structure according to claim 1, which is characterized in that the control assembly include control chip with
And driving circuit, the control chip and driving circuit may be contained on the wiring board, the control chip and the drive
Dynamic circuit electrical connection, the driving circuit are electrically connected with the first electrode layer and the second electrode lay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810189030.XA CN108267158A (en) | 2018-03-08 | 2018-03-08 | Angular encoder structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810189030.XA CN108267158A (en) | 2018-03-08 | 2018-03-08 | Angular encoder structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108267158A true CN108267158A (en) | 2018-07-10 |
Family
ID=62774734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810189030.XA Pending CN108267158A (en) | 2018-03-08 | 2018-03-08 | Angular encoder structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108267158A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108931227A (en) * | 2018-07-20 | 2018-12-04 | 朱浩东 | High-accuracy measurement angle encoder |
| CN108931226A (en) * | 2018-07-20 | 2018-12-04 | 朱浩东 | High-accuracy measurement angle coder structure |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6439502A (en) * | 1987-08-05 | 1989-02-09 | Man Design Co | Length measuring instrument |
| US5345519A (en) * | 1993-09-07 | 1994-09-06 | Canadian Marconi Company | Temperature-compensated fiber optic external cavity strain sensors and an intensity-based fiber optic sensor system |
| US5630283A (en) * | 1994-05-06 | 1997-05-20 | Dr. Johannes Heidenhain Gmbh | Linear or angular encoder |
| CN101235903A (en) * | 2008-03-11 | 2008-08-06 | 浙江大学 | Piezo crystal drive high speed switch valve |
| CN101331314A (en) * | 2005-12-13 | 2008-12-24 | 罗伯特·博世有限公司 | Fuel injector |
| CN102226702A (en) * | 2011-03-22 | 2011-10-26 | 王天甜 | Increment type photoelectric encoder |
| CN105195970A (en) * | 2015-10-21 | 2015-12-30 | 浙江工业大学 | Planar rolling cutter with constant distance rolling function |
-
2018
- 2018-03-08 CN CN201810189030.XA patent/CN108267158A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6439502A (en) * | 1987-08-05 | 1989-02-09 | Man Design Co | Length measuring instrument |
| US5345519A (en) * | 1993-09-07 | 1994-09-06 | Canadian Marconi Company | Temperature-compensated fiber optic external cavity strain sensors and an intensity-based fiber optic sensor system |
| US5630283A (en) * | 1994-05-06 | 1997-05-20 | Dr. Johannes Heidenhain Gmbh | Linear or angular encoder |
| CN101331314A (en) * | 2005-12-13 | 2008-12-24 | 罗伯特·博世有限公司 | Fuel injector |
| CN101235903A (en) * | 2008-03-11 | 2008-08-06 | 浙江大学 | Piezo crystal drive high speed switch valve |
| CN102226702A (en) * | 2011-03-22 | 2011-10-26 | 王天甜 | Increment type photoelectric encoder |
| CN105195970A (en) * | 2015-10-21 | 2015-12-30 | 浙江工业大学 | Planar rolling cutter with constant distance rolling function |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108931227A (en) * | 2018-07-20 | 2018-12-04 | 朱浩东 | High-accuracy measurement angle encoder |
| CN108931226A (en) * | 2018-07-20 | 2018-12-04 | 朱浩东 | High-accuracy measurement angle coder structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108267159A (en) | High-precision angle coder structure | |
| CN108267158A (en) | Angular encoder structure | |
| US9429458B2 (en) | Flowmeter having electrical sensor elements connected in series and applied to an outer surface of a guide structure | |
| US9945694B2 (en) | Rotary angle sensor | |
| JP5756015B2 (en) | Temperature sensor, manufacturing method and mounting method thereof | |
| CN101750100A (en) | Rotating angle sensor | |
| JP5041139B2 (en) | Torque sensor and electric power steering device | |
| WO2007034690A1 (en) | Bearing with rotation detecting device | |
| CN102177415B (en) | Device for detecting rotational angle of rotatable part | |
| CN108534808A (en) | Angular encoder with temperature compensation function | |
| US20190310142A1 (en) | Capacitive sensor | |
| JP2009139212A (en) | Ultrasonic liquid level meter | |
| CN108562223A (en) | Novel angular encoder structure | |
| CN108534807A (en) | Angular encoder | |
| CN109476341B (en) | Angular rotation sensor system | |
| CN108444505A (en) | Portable angle coder structure | |
| CN109084809A (en) | Angular encoder structure with temperature compensation function | |
| CN108444504A (en) | High-precision angle encoder | |
| CN109000688A (en) | A kind of angular encoder | |
| CN108627185A (en) | Angular encoder | |
| CN108931227A (en) | High-accuracy measurement angle encoder | |
| CN109141483A (en) | Angular encoder structure | |
| JP6709486B2 (en) | Pressure sensor | |
| CN108613687A (en) | angle detector structure | |
| CN108931226A (en) | High-accuracy measurement angle coder structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180710 |