CN204884025U - Illumination detects burglar alarm - Google Patents
Illumination detects burglar alarm Download PDFInfo
- Publication number
- CN204884025U CN204884025U CN201520472211.5U CN201520472211U CN204884025U CN 204884025 U CN204884025 U CN 204884025U CN 201520472211 U CN201520472211 U CN 201520472211U CN 204884025 U CN204884025 U CN 204884025U
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- China
- Prior art keywords
- resistance
- triode
- alarm
- thyristor
- parallel
- 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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- Burglar Alarm Systems (AREA)
Abstract
The utility model discloses an illumination detects burglar alarm, including triode VT, triode VT's base is established ties and is had resistance R1 and emitting diode VD1, triode VT's collecting electrode connects in parallel and has resistance R2 and resistance R3, resistance R3 is connected with thyristor VS, thyristor VS connects in parallel has diode VD2 and relay K, relay K's normally closed contact is connected with alarm BL. The utility model discloses simple structure, reasonable in design, the low and convenient to use of cost of manufacture, detection efficiency is high, applicablely uses convenient to use in burglar alarms such as family, office space, public places.
Description
Technical field
The utility model relates to a kind of warning circuit, is specifically related to a kind of illumination and detects burglar alarm.
Background technology
The problems such as warning circuit weight of the prior art is various, and circuit structure is different, but these warning circuit ubiquity circuit structures are complicated, and working service is inconvenient, greatly have impact on usable range, are especially not suitable for family and use.
Utility model content
The utility model object: the purpose of this utility model is to solve deficiency of the prior art, provide a kind of structure simple, illumination easy to use detects burglar alarm.
Technical scheme: a kind of illumination described in the utility model detects burglar alarm, comprise triode VT, the base series of described triode VT has resistance R1 and light emitting diode VD1, the collector of described triode VT is parallel with resistance R2 and resistance R3, described resistance R3 is connected with thyristor VS, described thyristor VS is parallel with diode VD2 and relay K, and the normally closed contact switch of described relay K is connected with alarm BL, and the emitter of described triode VT is connected with described thyristor VS.
Further, the ratio of described resistance R1 and described resistance R2 is 1: 5-10.
Further, described triode VT adopts bipolar transistor.
Further, described alarm BL is also connected in parallel to LED.
Beneficial effect: the utility model structure is simple, and reasonable in design, cost of manufacture is low and easy to use, and detection efficiency is high, is applicable to the burglar alarms such as family, office space, public place and uses, easy to use.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
A kind of illumination as shown in Figure 1 detects burglar alarm, comprise triode VT, the base series of described triode VT has resistance R1 and light emitting diode VD1, the collector of described triode VT is parallel with resistance R2 and resistance R3, described resistance R3 is connected with thyristor VS, described thyristor VS is parallel with diode VD2 and relay K, and the normally closed contact switch of described relay K is connected with alarm BL, and the emitter of described triode VT is connected with described thyristor VS.
As the further optimization of technique scheme, the ratio of described resistance R1 and described resistance R2 is 1: 5-10.Described triode VT adopts bipolar transistor.Described alarm BL is also connected in parallel to LED.
This circuit is when light emitting diode VD1 has illumination to penetrate, and light emitting diode VD1 is low resistive state, triode VT saturation conduction, and thyristor VS ends, relay K not adhesive, and alarm BL does not report to the police.When there being people to swarm into, the illumination on light emitting diode VD1 disappears, and light emitting diode VD1 is high-impedance state, and triode VT ends, and thyristor VS is subject to triggering and conducting, relay K adhesive, alarm equipment alarm.
The utility model structure is simple, and reasonable in design, cost of manufacture is low and easy to use, and detection efficiency is high, is applicable to the burglar alarms such as family, office space, public place and uses, easy to use.
Claims (4)
1. an illumination detects burglar alarm, it is characterized in that: comprise triode VT, the base series of described triode VT has resistance R1 and light emitting diode VD1, the collector of described triode VT is parallel with resistance R2 and resistance R3, described resistance R3 is connected with thyristor VS, described thyristor VS is parallel with diode VD2 and relay K, and the normally closed contact switch of described relay K is connected with alarm BL, and the emitter of described triode VT is connected with described thyristor VS.
2. a kind of illumination according to claim 1 detects burglar alarm, it is characterized in that: the ratio of described resistance R1 and described resistance R2 is 1: 5-10.
3. a kind of illumination according to claim 1 detects burglar alarm, it is characterized in that: described triode VT adopts bipolar transistor.
4. a kind of illumination according to claim 1 detects burglar alarm, it is characterized in that: described alarm BL is also connected in parallel to LED.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520472211.5U CN204884025U (en) | 2015-06-29 | 2015-06-29 | Illumination detects burglar alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520472211.5U CN204884025U (en) | 2015-06-29 | 2015-06-29 | Illumination detects burglar alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204884025U true CN204884025U (en) | 2015-12-16 |
Family
ID=54828377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520472211.5U Expired - Fee Related CN204884025U (en) | 2015-06-29 | 2015-06-29 | Illumination detects burglar alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204884025U (en) |
-
2015
- 2015-06-29 CN CN201520472211.5U patent/CN204884025U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 Termination date: 20160629 |