CN202940720U - Fluorescence optical path shutter structure capable of eliminating positioning failure of stepping motor - Google Patents
Fluorescence optical path shutter structure capable of eliminating positioning failure of stepping motor Download PDFInfo
- Publication number
- CN202940720U CN202940720U CN 201220624197 CN201220624197U CN202940720U CN 202940720 U CN202940720 U CN 202940720U CN 201220624197 CN201220624197 CN 201220624197 CN 201220624197 U CN201220624197 U CN 201220624197U CN 202940720 U CN202940720 U CN 202940720U
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- CN
- China
- Prior art keywords
- optoelectronic switch
- photoelectric switch
- blocks
- shutter structure
- stepping motor
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- Expired - Lifetime
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Abstract
The utility model relates to a fluorescence optical path shutter structure capable of eliminating positioning failure of a stepping motor. The fluorescence optical path shutter structure comprises two photoelectric switch boards, wherein a column-shaped photoelectric switch column is clamped between the two photoelectric switch boards; both the two photoelectric switch boards are provided with circular holes; three sides of each of the two photoelectric switch boards are right-angle sides having advance angles; each circular hole is close to two sides of the three right-angle sides; the other side of each of the two photoelectric switch boards is a sector which takes the center of the circular hole as the center of a circle; each sector is provided with a protrusive square board which is used for coupling with a photoelectric switch and providing signals to a control system; each square board separates the sector into two parts, a radius of a radian of an upper part being 1.3 inch while an original one being 1.4 inch; and when all tolerances are accumulated, an arc segment may be coupled with the photoelectric switch, and thus starting-up self-check cannot be passed. After the change, the radius of the arc segment is 1.3 inch, and thus correct signals provided to the control system by the photoelectric switch in any case can be guaranteed.
Description
Technical field
The utility model relates to a kind of fluorescence light path shutter structure, relating in particular to the rear arc section of a kind of design R1.4 inch that the fan-shaped part of two blocks of optoelectronic switch plates is original change design is the R1.3 inch, after improving design, instrument is smoothly by startup self-detection, and what no longer report an error can eliminate the fluorescence light path shutter structure that stepping motor can't orientation problem.
Background technology
Stepping motor is a kind of device of mechanical movement that control signal is converted to commonly used, can realize accurate location.Realize that positioning function must have mechanical zero as a reference, common mechanical offers control system by mechanical switch or optoelectronic switch zero point.
For realizing location accurately, requirement designs corresponding structure on the moving component of motor driving and position-sensing switch is coupled.
Because stepping motor is that open loop is controlled, at the volley between feedback not, provide that the initial mechanical dead-center position is particularly important accurately.
In original stepping motor, the shutter design can not provide the signal of mechanical zero to control system reliably.The accumulative total of all parts tolerance can appear at through after the mechanical zero that designs, and still provides zero signal to control system, causes software to report an error, and instrument can't be by startup self-detection.
The utility model content
For the problems referred to above, it is the R1.3 inch that main purpose of the present utility model is to provide the rear arc section of a kind of design R1.4 inch that the fan-shaped part of two blocks of optoelectronic switch plates is original change design, after improving design, instrument is smoothly by startup self-detection, and what no longer report an error can eliminate the fluorescence light path shutter structure that stepping motor can't orientation problem.
the utility model solves above-mentioned technical problem by following technical proposals: a kind of fluorescence light path shutter structure that can eliminate stepping motor can't orientation problem, described fluorescence light path shutter structure comprises two blocks of optoelectronic switch plates, be respectively the first optoelectronic switch plate and the second optoelectronic switch plate, clip the optoelectronic switch post of a column type between two blocks of optoelectronic switch plates, all have a circular hole on two blocks of optoelectronic switch plates, three limits of two blocks of optoelectronic switch plates are the right-angle side with lead angle, described circular hole is near the both sides in above-mentioned three right-angle sides, the another side of two blocks of optoelectronic switch plates is take the center of circle of described circular hole fan-shaped as the center of circle, described have being used for being coupled with optoelectronic switch the square plate of signal to control system being provided of a protrusion on fan-shaped, described square plate is with described fan-shaped two parts that separate into, the radius of the radian of upper part is 1.3 inches.
In specific embodiment of the utility model, all have three square holes on described two blocks of optoelectronic switch plates.
In specific embodiment of the utility model, described three square holes present fan-shaped distribution.
Positive progressive effect of the present utility model is: the utility model and existing similar fluorescence light path shutter structure compare, and original shutter design can not provide the signal of mechanical zero to control system reliably.The accumulative total of all parts tolerance can appear at through after the mechanical zero that designs, and still provides zero signal to control system, causes software to report an error, and instrument can't be by startup self-detection.
Original design R1.4 inch after every tolerance stack, the situation of R1.4 inch arc section and optoelectronic switch coupling can occur, and causing can not be by startup self-detection.After change design, arc section is the R1.3 inch, can guarantee that under any circumstance optoelectronic switch provides correct signal to control system.
By improving the design of shutter, guarantee under any circumstance to only have the mechanical zero of design can be to system's zero signal, improve design after, instrument no longer reports an error smoothly by startup self-detection.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of the first optoelectronic switch plate in the utility model.
Embodiment
Provide the utility model preferred embodiment below in conjunction with accompanying drawing, to describe the technical solution of the utility model in detail.
Fig. 1 is structural representation of the present utility model, and Fig. 2 is the structural representation of the first optoelectronic switch plate in the utility model.as shown in Fig. 1-2: the utility model comprises two blocks of optoelectronic switch plates, be respectively the first optoelectronic switch plate 100 and the second optoelectronic switch plate 200, clip the optoelectronic switch post 300 of a column type between two blocks of optoelectronic switch plates, all have a circular hole 400 on two blocks of optoelectronic switch plates, three limits of two blocks of optoelectronic switch plates are the right-angle side with lead angle, circular hole 400 is near the both sides in above-mentioned three right-angle sides, the another side of two blocks of optoelectronic switch plates is take the center of circle of circular hole 400 fan-shaped as the center of circle, being used for being coupled with optoelectronic switch the square plate 500 of signal to control system being provided of a protrusion arranged on fan-shaped, square plate 500 is with described fan-shaped two parts that separate into, the radius of the radian of upper part 600 is 1.3 inches.
All have square hole 700,700, three, three square holes on two blocks of optoelectronic switch plates and present fan-shaped distribution.
Original shutter design can not provide the signal of mechanical zero to control system reliably.The accumulative total of all parts tolerance can appear at through after the mechanical zero that designs, and still provides zero signal to control system, causes software to report an error, and instrument can't be by startup self-detection.
Original design R1.4 inch after every tolerance stack, the situation of R1.4 inch arc section and optoelectronic switch coupling can occur, and causing can not be by startup self-detection.After change design, arc section is the R1.3 inch, can guarantee that under any circumstance optoelectronic switch provides correct signal to control system.
By improving the design of shutter, guarantee under any circumstance to only have the mechanical zero of design can be to system's zero signal, improve design after, instrument no longer reports an error smoothly by startup self-detection.
Above demonstration and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications; these changes and improvements all fall in claimed the utility model scope, and the claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. the fluorescence light path shutter structure that can eliminate stepping motor can't orientation problem, it is characterized in that: described fluorescence light path shutter structure comprises two blocks of optoelectronic switch plates, be respectively the first optoelectronic switch plate and the second optoelectronic switch plate, clip the optoelectronic switch post of a column type between two blocks of optoelectronic switch plates, all have a circular hole on two blocks of optoelectronic switch plates, three limits of two blocks of optoelectronic switch plates are the right-angle side with lead angle, described circular hole is near the both sides in above-mentioned three right-angle sides, the another side of two blocks of optoelectronic switch plates is take the center of circle of described circular hole fan-shaped as the center of circle, described have being used for being coupled with optoelectronic switch the square plate of signal to control system being provided of a protrusion on fan-shaped, described square plate is with described fan-shaped two parts that separate into, the radius of the radian of upper part is 1.3 inches.
2. the fluorescence light path shutter structure that can eliminate stepping motor can't orientation problem according to claim 1, is characterized in that: all have three square holes on described two blocks of optoelectronic switch plates.
3. the fluorescence light path shutter structure that can eliminate stepping motor can't orientation problem according to claim 2, it is characterized in that: described three square holes present fan-shaped distribution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220624197 CN202940720U (en) | 2012-11-22 | 2012-11-22 | Fluorescence optical path shutter structure capable of eliminating positioning failure of stepping motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220624197 CN202940720U (en) | 2012-11-22 | 2012-11-22 | Fluorescence optical path shutter structure capable of eliminating positioning failure of stepping motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202940720U true CN202940720U (en) | 2013-05-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220624197 Expired - Lifetime CN202940720U (en) | 2012-11-22 | 2012-11-22 | Fluorescence optical path shutter structure capable of eliminating positioning failure of stepping motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN202940720U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596073A (en) * | 2014-12-29 | 2015-05-06 | 广东美的制冷设备有限公司 | Air outlet angle positioning device and method for air conditioner |
-
2012
- 2012-11-22 CN CN 201220624197 patent/CN202940720U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596073A (en) * | 2014-12-29 | 2015-05-06 | 广东美的制冷设备有限公司 | Air outlet angle positioning device and method for air conditioner |
| CN104596073B (en) * | 2014-12-29 | 2017-05-10 | 广东美的制冷设备有限公司 | Air outlet angle positioning device and method for air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130515 |
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| CX01 | Expiry of patent term |