CN201440648U - Photoelectric switch - Google Patents
Photoelectric switch Download PDFInfo
- Publication number
- CN201440648U CN201440648U CN2009201200673U CN200920120067U CN201440648U CN 201440648 U CN201440648 U CN 201440648U CN 2009201200673 U CN2009201200673 U CN 2009201200673U CN 200920120067 U CN200920120067 U CN 200920120067U CN 201440648 U CN201440648 U CN 201440648U
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- CN
- China
- Prior art keywords
- light
- photoelectric switch
- phototriode
- shell body
- housing
- 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 discloses a photoelectric switch which comprises a light-sensitive triode and a shell body with an opening. The light-sensitive triode is arranged in the shell body, and a band-pass light filtering sheet is arranged at the opening position of the shell body. Therefore, when an external laser illuminator emits laser beams with specific wavelength to the photoelectric switch, the band-pass light filtering sheet can effectively filter and remove natural light, a fluorescent lamp or other interference light with unspecific wavelength; the laser beams are irradiated onto a base electrode of the light-sensitive triode after entering the shell body, so that the light-sensitive triode generates an effective logic level signal, and the generated logic level signal triggers a control module of external equipment or a device; as the photoelectric switch is a non-contact switch, the problems of contact resistance and mechanical life do not exist; in addition, wetting cannot be easily incurred, so that testing results are more accurate; the photoelectric switch realizes on and off by the laser beams without the operation of working personnel with the help of a push rod or a ladder and the like, which brings about great convenience for the working personnel.
Description
Technical field
The utility model relates to a kind of switch, especially relates to a kind of optoelectronic switch.
Background technology
At present, the logic switch that is used to control mains switch that various device or device go up to use, whether the function that perhaps is used for testing equipment or device normal Test Switchboard, and what use basically all is mechanical switch.By pressing mechanical switch, produce the logical one level signal, the functional module in trigger equipment or the device realizes function corresponding.But mechanical switch comes down to a kind of contact switch, has contact resistance, makes that its mechanical endurance is shorter; Mechanical switch also is easy to make moist, and will influence the operate as normal of equipment or device, when especially using as Test Switchboard, may cause the inaccurate of test result after making moist; In addition, when mechanical switch is used to be positioned at high aerial equipment or device as smog alarm equipment, use very inconveniently, the need staff waits by push rod or ladder and operates, and has brought great inconvenience to the staff.
Summary of the invention
But technical problem to be solved in the utility model provides a kind of remote operation, and the long optoelectronic switch of moisture-sensitive, life-span not.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of optoelectronic switch, comprise phototriode, also comprise the housing with an opening, described phototriode is arranged in the described housing, and the opening part of described housing is provided with bandpass filter.
The material that described housing adopts is a light-proof material.
Described light-proof material is lighttight engineering plastics.
In the described housing along the inwall of described housing be provided be used to absorb or change the refraction of stray light and reflection direction be the screw-shaped working of plastics.
Described phototriode is NPN type phototriode or positive-negative-positive phototriode.
Compared with prior art, advantage of the present utility model is that this optoelectronic switch comprises a housing with an opening, phototriode is arranged in the housing and the opening part of housing is provided with bandpass filter, this structure make when outside laser hole drilling illuminator when this optoelectronic switch is launched the laser beam of specific wavelength, bandpass filter is the filtering natural daylight effectively, the stray light of fluorescent lamp or other nonspecific wavelength, laser beam shines on the base stage of phototriode after entering housing, make phototriode produce effective logic level signal, trigger the control module of external equipment or device by the logic level signal that produces, because this optoelectronic switch is a non-contact switch, there is not contact resistance, there is not mechanical endurance yet, and moisture-sensitive not.The working of plastics of housing internal thread shape can effectively change refraction and the reflection direction that enters the small amount of interference light in the housing by bandpass filter, makes stray light turn back to outside; Because this optoelectronic switch realizes Push And Release by laser beam, do not need the staff to wait and operate by ladder or push rod, bring great convenience to the staff.Because this optoelectronic switch moisture-sensitive not, so when this optoelectronic switch used as Test Switchboard, the accuracy rate of test result was higher.
Description of drawings
Fig. 1 is the cross-sectional schematic of optoelectronic switch of the present utility model.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As shown in the figure, a kind of optoelectronic switch, comprise phototriode 1 and the housing of making by light-proof material 2, housing 2 has an opening 3, opening 3 places of housing 2 are provided with bandpass filter 4, phototriode 1 is arranged in the housing 2, housing 2 interior inwalls along housing 2 are provided with and are screw-shaped working of plastics 5, working of plastics 5 can be made by existing engineering plastics, but this working of plastics 5 must be designed to shape of threads, enter a spot of stray lights in the housing 2 like this and absorbed by working of plastics 5 or changed refraction and reflection direction, reached and filter natural daylight, the purpose of stray lights such as daylight.
In this specific embodiment, phototriode 1 can adopt the NPN type, also can adopt positive-negative-positive; The light-proof material that housing 2 is adopted can adopt lighttight engineering plastics.
Optoelectronic switch of the present utility model can be applicable on various warning devices such as the smoke alarm unit as function testing switch, this moment, the collector electrode of phototriode 1 end that passes the mechanical test switch on the warning device of housing 2 and application of this optoelectronic switch was connected, the emitter of phototriode 1 passes housing 2 and is connected with the other end of mechanical test switch, when operating personnel test in the function that application is had the warning device of this optoelectronic switch, can be directly by outside generating laser as light pen or the remote controller of household electrical appliance to this optoelectronic switch emission of lasering beam, bandpass filter 4 is with natural daylight, the stray light of fluorescent lamp or other nonspecific wavelength filters out, laser beam shines on the base stage of phototriode 1 after entering housing 2, because laser beam produces effective logic level signal to the phototriode 1 very sensitive phototriode 1 that makes, by the alarm module in the logic level signal triggering warning device that produces, the buzzer warning in the alarm module control warning device in the warning device; Because the light source of laser beam is parallel, and transmitting range is far away, so operating personnel only need use general light pen just can realize by irradiation phototriode 1 whether the function of warning device is tested normally very easily as generating laser.
Claims (5)
1. an optoelectronic switch comprises phototriode, it is characterized in that also comprising the housing with an opening, and described phototriode is arranged in the described housing, and the opening part of described housing is provided with bandpass filter.
2. a kind of optoelectronic switch according to claim 1 is characterized in that the material that described housing adopts is a light-proof material.
3. a kind of optoelectronic switch according to claim 2 is characterized in that described light-proof material is lighttight engineering plastics.
4. according to each described a kind of optoelectronic switch in the claim 1 to 3, it is characterized in that in the described housing along the inwall of described housing be provided be used to absorb or change the refraction of stray light and reflection direction be the screw-shaped working of plastics.
5. a kind of optoelectronic switch according to claim 4 is characterized in that described phototriode is NPN type phototriode or positive-negative-positive phototriode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201200673U CN201440648U (en) | 2009-05-18 | 2009-05-18 | Photoelectric switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201200673U CN201440648U (en) | 2009-05-18 | 2009-05-18 | Photoelectric switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201440648U true CN201440648U (en) | 2010-04-21 |
Family
ID=42545307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201200673U Expired - Fee Related CN201440648U (en) | 2009-05-18 | 2009-05-18 | Photoelectric switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201440648U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102590846A (en) * | 2012-03-02 | 2012-07-18 | 山西省电力公司电力科学研究院 | Radiation alarm |
-
2009
- 2009-05-18 CN CN2009201200673U patent/CN201440648U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102590846A (en) * | 2012-03-02 | 2012-07-18 | 山西省电力公司电力科学研究院 | Radiation alarm |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 315040, building 2, building 1177, Lingyun Road, Ningbo hi tech Zone, 4 Patentee after: Ningbo High-tech Zone Yingnuo Science and Technology Co., Ltd. Address before: 335, room 66, No. 315040, academician Road, hi tech Zone, Zhejiang, Ningbo Patentee before: Ningbo High-tech Zone Yingnuo Science and Technology Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100421 Termination date: 20130518 |