CN202713257U - Photoelectric switch with high reliability - Google Patents
Photoelectric switch with high reliability Download PDFInfo
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- CN202713257U CN202713257U CN 201220399803 CN201220399803U CN202713257U CN 202713257 U CN202713257 U CN 202713257U CN 201220399803 CN201220399803 CN 201220399803 CN 201220399803 U CN201220399803 U CN 201220399803U CN 202713257 U CN202713257 U CN 202713257U
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Abstract
The utility model discloses a photoelectric switch with high reliability, which comprises a light emitting circuit and a photoelectric switch receiving circuit, wherein the light emitting circuit comprises a first-stage pulse generator CD4001, a second-stage pulse generator CD4001 and a frequency divider CD4060, the frequency divider CD4060 is externally connected with a crystal oscillation circuit; and the photoelectric switch receiving circuit is formed by connecting an infrared photoelectric triode tube T2, a low pass filter, a two-stage band-pass filter, a detection circuit and an output circuit in sequence. The photoelectric switch provided by the utility model has the advantages of strong anti-interference ability and wide application range.
Description
Technical field
The utility model relates to a kind of optoelectronic switch, is specifically related to the high optoelectronic switch of a kind of reliability.
Background technology
Along with developing rapidly of China's industrial automation technology, the optoelectronic switch Automation Elements will be become generally to be adopted, and application is also in continuous expansion.For example be used for high-speed counting, test the speed, the existence of level control, inspected object, detect many occasions such as accessory size.When the occasion that is used for bank, warehouse, shop, office and other needs is as anti-stealing warning, high especially to its unfailing performance requirement.
The utility model content
The utility model has overcome the deficiencies in the prior art, provides a kind of reliability high optoelectronic switch, and its antijamming capability is strong, and reliability is high, and circuit is simple, is convenient to make.
For solving above-mentioned technical problem, the utility model by the following technical solutions:
The optoelectronic switch that a kind of reliability is high, it comprises illuminating circuit and optoelectronic switch receiving circuit, described illuminating circuit comprises first, second grade pulse generator CD4001 and frequency divider CD4060, and the upper external crystal oscillating circuit of frequency divider CD4060; Described optoelectronic switch receiving circuit is connected with output circuit and is connected by infrared electro triode T2, low pass filter, second-order bandpass filter, detecting circuit.
Further technical scheme is:
The first order pulse generator CD4001 of described illuminating circuit is connected with rheostat R1, and the end ground connection of rheostat R1, one end of another termination K switch 1, an other end of K switch 1 is connected on the resistance R 2, the other end of R2 connects capacitor C 1, and the other end of capacitor C 1 is connected on the first order pulse generator CD4001; Resistance R 2 and capacitor C 1 an adjacent end are connected on the pulse generator CD4001 of the second level; Connection+5V power supply between resistance R 2 and the K switch 1.
Described low pass filter is comprised of resistance R 13 and capacitor C 11.
The C level of described infrared electro triode T2 is connected to resistance R 11 and capacitor C 10, another termination one resistance R 15 of resistance R 11, the other end of resistance R 15 is connected on the resistance R 13 of low pass filter, linking to each other with capacitor C 10 of capacitor C 11, capacitor C 10 and capacitor C 11 are connected on the E level of triode T3 simultaneously, the B level of triode T3 links to each other with the E level of infrared electro triode T2, the B level of infrared electro triode T2 is connected with resistance R 12, and the other end of resistance R 12 is connected between resistance R 13 and the capacitor C 11, connection+5V power supply between resistance R 11 and the resistance R 15.
Described detecting circuit is comprised of diode D1 and capacitor C 14, and is connected with resistance R 16 between detecting circuit and the output circuit.
Described output circuit is comprised of amplifying circuit and Schmidt circuit.
First order CD4001 is pulse generator, and manually button output detections pulse is used for breakdown maintenance.Use frequency divider CD4060 in the circuit, can stablize the frequency of modulated light signal.Infrared electro triode T2 is with the base stage leading foot.Therefore can carry out sensitivity control to it.The hysteresis of Schmidt circuit can be eliminated the critical flutter phenomenon of optoelectronic switch, avoids the mistake of optoelectronic switch to turn over phenomenon.Variable in distance between light source and the phototriode, in very large range little on the impact of T3 output signal.
Compared with prior art, the beneficial effects of the utility model are:
1, phototriode T3 is not easy saturatedly, can well suppress ambient light and disturb.
2, Schmidt circuit can be trembled critical the disappearing of switch, avoids the mistake of optoelectronic switch to turn over phenomenon, carries
The high anti-jamming capacity of high complete machine.
3, applied range, can be applicable to reflective or the correlation optoelectronic switch in.
4, circuit is simple, is convenient to make.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the circuit diagram of the utility model illuminating circuit.
Fig. 2 is the circuit diagram of the utility model electric switch receiving circuit.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.Execution mode of the present utility model includes but not limited to the following example.
Embodiment
The high optoelectronic switch of a kind of reliability as shown in Figure 1, it comprises illuminating circuit and optoelectronic switch receiving circuit, illuminating circuit comprises first, second grade pulse generator CD4001 and frequency divider CD4060, and the upper external crystal oscillating circuit of frequency divider CD4060; The optoelectronic switch receiving circuit is connected with output circuit and is connected by infrared electro triode T2, low pass filter, second-order bandpass filter, detecting circuit.The first order pulse generator CD4001 of illuminating circuit is connected with rheostat R1, and the end ground connection of rheostat R1, one end of another termination K switch 1, an other end of K switch 1 is connected on the resistance R 2, the other end of R2 connects capacitor C 1, and the other end of capacitor C 1 is connected on the first order pulse generator CD4001; Resistance R 2 and capacitor C 1 an adjacent end are connected on the pulse generator CD4001 of the second level; Connection+5V power supply between resistance R 2 and the K switch 1.Low pass filter is comprised of resistance R 13 and capacitor C 11.The C level of infrared electro triode T2 is connected to resistance R 11 and capacitor C 10, another termination one resistance R 15 of resistance R 11, the other end of resistance R 15 is connected on the resistance R 13 of low pass filter, linking to each other with capacitor C 10 of capacitor C 11, capacitor C 10 and capacitor C 11 are connected on the E level of triode T3 simultaneously, the B level of triode T3 links to each other with the E level of infrared electro triode T2, the B level of infrared electro triode T2 is connected with resistance R 12, and the other end of resistance R 12 is connected between resistance R 13 and the capacitor C 11, connection+5V power supply between resistance R 11 and the resistance R 15.Detecting circuit is comprised of diode D1 and capacitor C 14, and is connected with resistance R 16 between detecting circuit and the output circuit.Output circuit is comprised of amplifying circuit and Schmidt circuit.
According to the above embodiments, can well finish the utility model.
Be as mentioned above embodiment of the present utility model.The utility model is not limited to above-mentioned execution mode, and anyone should learn the structural change of making under enlightenment of the present utility model, every with the utlity model has identical or close technical scheme, all fall within the protection range of the present utility model.
Claims (6)
1. optoelectronic switch that reliability is high, it is characterized in that: it comprises illuminating circuit and optoelectronic switch receiving circuit, described illuminating circuit comprises first, second grade pulse generator CD4001 and frequency divider CD4060, and the upper external crystal oscillating circuit of frequency divider CD4060; Described optoelectronic switch receiving circuit is connected with output circuit and is connected by infrared electro triode T2, low pass filter, second-order bandpass filter, detecting circuit.
2. the high optoelectronic switch of reliability according to claim 1, it is characterized in that: the first order pulse generator CD4001 of described illuminating circuit is connected with rheostat R1, and the end ground connection of rheostat R1, one end of another termination K switch 1, an other end of K switch 1 is connected on the resistance R 2, the other end of R2 connects capacitor C 1, and the other end of capacitor C 1 is connected on the first order pulse generator CD4001; Resistance R 2 and capacitor C 1 an adjacent end are connected on the pulse generator CD4001 of the second level; Connection+5V power supply between resistance R 2 and the K switch 1.
3. the high optoelectronic switch of reliability according to claim 1, it is characterized in that: described low pass filter is comprised of resistance R 13 and capacitor C 11.
4. the high optoelectronic switch of reliability according to claim 1, it is characterized in that: the C level of described infrared electro triode T2 is connected to resistance R 11 and capacitor C 10, another termination one resistance R 15 of resistance R 11, the other end of resistance R 15 is connected on the resistance R 13 of low pass filter, linking to each other with capacitor C 10 of capacitor C 11, capacitor C 10 and capacitor C 11 are connected on the E level of triode T3 simultaneously, the B level of triode T3 links to each other with the E level of infrared electro triode T2, the B level of infrared electro triode T2 is connected with resistance R 12, and the other end of resistance R 12 is connected between resistance R 13 and the capacitor C 11, connection+5V power supply between resistance R 11 and the resistance R 15.
5. the high optoelectronic switch of reliability according to claim 1, it is characterized in that: described detecting circuit is comprised of diode D1 and capacitor C 14, and is connected with resistance R 16 between detecting circuit and the output circuit.
6. the high optoelectronic switch of reliability according to claim 1, it is characterized in that: described output circuit is comprised of amplifying circuit and Schmidt circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220399803 CN202713257U (en) | 2012-08-14 | 2012-08-14 | Photoelectric switch with high reliability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220399803 CN202713257U (en) | 2012-08-14 | 2012-08-14 | Photoelectric switch with high reliability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202713257U true CN202713257U (en) | 2013-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220399803 Expired - Fee Related CN202713257U (en) | 2012-08-14 | 2012-08-14 | Photoelectric switch with high reliability |
Country Status (1)
| Country | Link |
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| CN (1) | CN202713257U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595388A (en) * | 2012-08-14 | 2014-02-19 | 成都思迈科技发展有限责任公司 | A photoelectric switch with high reliability |
| CN110925720A (en) * | 2018-09-19 | 2020-03-27 | 漳浦比速光电科技有限公司 | Photoelectric circuit switch for illumination and use method thereof |
-
2012
- 2012-08-14 CN CN 201220399803 patent/CN202713257U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595388A (en) * | 2012-08-14 | 2014-02-19 | 成都思迈科技发展有限责任公司 | A photoelectric switch with high reliability |
| CN110925720A (en) * | 2018-09-19 | 2020-03-27 | 漳浦比速光电科技有限公司 | Photoelectric circuit switch for illumination and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20130814 |