CN2142621Y - Overvoltage protection type multifunction light controlled appliance switch - Google Patents
Overvoltage protection type multifunction light controlled appliance switch Download PDFInfo
- Publication number
- CN2142621Y CN2142621Y CN 92211993 CN92211993U CN2142621Y CN 2142621 Y CN2142621 Y CN 2142621Y CN 92211993 CN92211993 CN 92211993 CN 92211993 U CN92211993 U CN 92211993U CN 2142621 Y CN2142621 Y CN 2142621Y
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- China
- Prior art keywords
- triode
- resistance
- output
- regulator block
- voltage stabilizing
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- Expired - Fee Related
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Abstract
The utility model relates to an over voltage protection multifunction light controlling appliance switch, which is composed of a power supply transformer, a bridge rectifying device, a filter capacitor, a voltage stabilizing block (the positive output), a voltage stabilizing diode, etc. The remote controlling distance can reach to 15 meters and the controlling action time is smaller than one second. The over voltage protection multifunction light controlling appliance switch has high anti-interference power and can carry out the over voltage automatic electricity disconnecting protection for electric apparatuses. The over voltage protection multifunction light controlling appliance switch also has the functions of an electronic door bell and a burglar alarm. The over voltage protection multifunction light controlling appliance switch can be used as the alarm device of the temperature, the pressure, the baby enuresis, the raining, etc.
Description
The utility model provides a kind of use normal optical (torch light) control band overvoltage protection and can be used as the appliance switch of electronic door bell, multifunction alarm device.
At present, the appliance switch of disclosed use normal optical (torch light) control mainly contains Fig. 2 to four kinds of circuit shown in Figure 5, but its effect is all undesirable, and shortcoming is respectively arranged.Though circuit shown in Figure 2 is simple, its shortcoming is can only close and can not open or on the contrary.Fig. 3 circuit has used one 555 integrated circuit, but sensitivity is too high, and anti-interference is poor, and meeting on daytime Auto Power On meets wave interference on occasion and can shut down automatically again.Fig. 4 circuit production is easy, but that its shortcoming one is a command range is too near, at most the 4-5 rice; The 2nd, too high to the β value requirement of 3DG12, even reaching, the β value still do not reach 6 meters far away more than 100; The 3rd, the easiest damage of start photodiode.Fig. 5 circuit performance is very undesirable, and command range is too near, and start can only reach 3-4 rice, and shutdown does not also reach 2 meters far away sometimes, and light requirement is according to the several seconds, and in debug process the easiest puncture photosensitive part and triode.
Task of the present utility model provides a kind of remote control distance (more than 15 meters), strong anti-interference performance far away, control action fast (less than 1 second) and can carry out the light-operated appliance switch that overvoltage protection has doorbell, multifunction alarm device function concurrently.
Task of the present utility model is finished as follows: adding a regulator block behind rectifier bridge provides permanent steady voltage to circuit, adopts triode BG3, the compound amplification control signal of BG4 two-stage; Resistance R
1, W
1After pressure sampling circuit was parallel to rectifier bridge, the fluctuation voltage sampled signal was through resistance R
2, triode BG
1, diode D
5, triode BG
2Control triode BG
3Base voltage, triode BG during superpressure
3Transferred to by conducting and to end, the relay J contact discharges, and electric current output is cut off, thus the protection electrical appliance; Add after the light-operated appliance switch circuit of overvoltage protection formula by regulator block, three switches, loudspeaker, two audio oscillation warning circuits that elements such as triode are formed, this circuit has doorbell, warning function.
The utility model is described in further detail below with reference to accompanying drawing.
Fig. 1 is a circuit diagram of the present utility model.
Fig. 2 to Fig. 5 is the light-operated appliance switch circuit figure of public use, and the anode of the bidirectional triode thyristor among Fig. 3 connects load.
With reference to Fig. 1, circuit of the present utility model is made up of power supply, rectification, voltage stabilizing, light-operated boot-strap circuit, light-operated shutdown circuit, overvoltage crowbar and audio oscillation warning circuit basically, and transformer B is by rectifier bridge D behind the 15V with 220 volts of civil power transformations
1-D
4Rectification, capacitor C
1Filtering, voltage stabilizing didoe DZ
2Connecting with regulator block 7809 provides permanent steady 14 volts of direct voltages (regulator block adds 5 volts of voltage stabilizing didoes for 9 volts) to switching circuit after the voltage stabilizing.As follows below in conjunction with 1 pair of main circuit of accompanying drawing and structure and principle analysis:
Light-operated boot-strap circuit is by photodiode D
8, voltage stabilizing didoe DZ
1, triode BG
3, BG
4, LED
1, normally opened contact J-3, resistance R
6, R
7, R
8, diode D
6, electrochemical capacitor C
3Constitute.Triode BG
3, BG
4Be connected into the series connection composite amplifier, LED
1Positive pole be connected to triode BG
4Emitter, negative pole is connected to rectifier bridge D
1-D
4Negative pole (ground connection); Resistance R
8J connects with relay coil, and the other end of relay coil J is connected to triode BG
3, BG
4Collector electrode, resistance R
8The other end be connected to the output (to call positive supply in the following text) of regulator block 7809; Diode D
6Be parallel to relay coil J, its positive pole is connected to triode BG
3, BG
4Collector electrode, negative pole connecting resistance R
8The lower end; Electrochemical capacitor C
3Anodal connecting resistance R
8With the common port of relay J, its minus earth; Photodiode D
8Negative pole connects positive supply, and positive pole meets voltage stabilizing didoe DZ
1Negative pole, voltage stabilizing didoe DZ
1Positive pole and triode BG
3Base stage join resistance R
6Last termination positive supply, the fixed contact of following relay termination normally opened contact J-3, resistance R
7The moving contact of last relay termination normally opened contact J-3, following termination voltage stabilizing didoe DZ
1Negative pole.
Light-operated boot-strap circuit is by resistance R
5, R
4, photodiode D
9, triode BG
2Constitute with the start partial circuit.Resistance R
5Last termination positive supply, following termination photodiode D
9Negative pole, D
9Positive pole meet triode BG
2Base stage, resistance R
4Last termination triode BG
2Base stage, lower end ground connection; Triode BG
2Grounded emitter, collector electrode meets voltage stabilizing didoe DZ
1Negative pole.
Overvoltage crowbar is by triode BG
1, resistance R
1, R
2, R
3, variable resistor W
1, diode D
5And open and close machine partial circuit constitutes.Resistance R
1, variable resistor W
1Be connected into the overvoltage sample circuit and be connected to rectifier bridge D
1-D
4Output, triode BG
1Base series resistor R
2After be connected to variable resistor W
1Sliding end, triode BG
1Collector electrode be connected to the output of regulator block 7809, its emitter series resistance R
3Back ground connection; Diode D
5Positive pole be connected to triode BG
1Emitter, negative pole is connected to triode BG
2Base stage.
With reference to circuit in Fig. 1 frame of broken lines, the audio oscillation warning circuit is by triode BG
5, BG
6, variable resistor R
9, capacitor C
4, loudspeaker Y, LED
3Form.Triode BG
6Collector electrode and the positive pole of loudspeaker Y join the minus earth of loudspeaker Y, K switch
3With K switch
2Back one in parallel is terminated at triode BG
6Emitter, the other end is connected to the output of regulator block 7805, the output of the input of regulator block 7805 and regulator block 7809 joins; Triode BG
5Collector electrode and triode BG
6Base stage join its emitter sending and receiving light pipe LED
3Positive pole, its base stage series connection variable resistor R
9After be connected to triode BG
6Emitter, triode BG
6Collector electrode and triode BG
5Base stage between series capacitance C
4, K switch
4, LED
3Minus earth.
With reference to Fig. 1, operation principle of the present utility model is as follows:
Closing Switch K
1Connect general supply, LED
2Bright, 220 volts of civil powers are reduced to 15 volts through transformer B, through rectifier bridge D
1-D
4Rectification, capacitor C
1Filtering, voltage stabilizing didoe DZ
2Connect with regulator block 7809 voltage stabilizing, again through capacitor C
2Supply with 14 volts of burning voltages of switching circuit after the filtering.
Start principle: with common torch beam alignment photodiode D
8Irradiation, D
8Reduce to low resistance (10K Ω is following), D by high value (more than the 1M Ω) at once
8Cathode voltage, by not having, impel voltage stabilizing didoe DZ immediately near service voltage
1, triode BG
3, BG
4Emitter junction, LED
1Conducting immediately, LED
1Bright (the sense of current: positive supply → D of lamp
8→ DZ
1→ BG
3Emitter junction → BG
4Emitter junction → LED
1→ ground), the relay coil J energising (sense of current: positive supply → R
8→ J → BG
4→ LED
1→ ground), its J-2 contact transfers to normally closedly by often opening, and accessory power outlet CZ connects 220 volts civil powers and drives electrical work, the disconnection of J-1 contact, LED
2Go out.Simultaneously, relay J-3 contacting, compound diode BG
3, BG
4Obtain base current, make relay J-2 contact keep attracting state always.Owing to adopted BG
3With BG
4The compound amplification of two-stage series connection, its current amplification factor are the product of two pipe multiplication factors, so BG
3Base stage only needs faint drive current, and compound circuit is conducting immediately, and therefore start distance can reach more than 15 meters.
Shutdown principle: with torch rayed photodiode D
9, D
9Become low resistance (10K Ω is following) immediately by high value (more than the 1M Ω), service voltage is through R
5Current limliting is by photodiode D
9Give triode BG
2Base stage provides bias current, makes BG
2Transfer conducting to immediately by ending, its collector voltage is reduced to below the 0.5V by 8.2V, forces triode BG
3, BG
4Lose the emitter junction bias voltage, transferred to by conducting immediately and ending, relay J-2, J-3 contact were opened by normally closed often transferring to, accessory power outlet CZ disconnects 220 volts of civil powers, simultaneously, and triode BG
3, BG
4End reliably owing to lose the emitter junction bias voltage.
Operation principle is protected in overvoltage automatically: by resistance R
1, W
1The pressure sampling circuit of forming is connected to rectification output with the corresponding fluctuation voltage of civil power, and triode BG
1Collector electrode but by voltage stabilizing didoe DZ
2Stablize 14 volts of constant voltages with providing after regulator block 7809 is connected.Under the electrical work situation, when civil power surpasses a certain dangerous voltage numerical value (as 235 volts, by variable resistor W
1Set arbitrarily) time, triode BG
1Base current increase (R rapidly
2Be current-limiting resistance), through BG
1After the amplification, its emitter current increases β doubly, makes resistance R
3The voltage of upper end raises rapidly, at this moment diode D
5Transfer conducting, triode BG to by ending
2Base voltage raise simultaneously, by by transferring conducting to, collector voltage is dropped to below the 0.5V by 8.2V, makes triode BG
3, BG
4Lose the emitter junction bias voltage, transfer to by conducting and ending, relay J-3, J-2 contact are disconnected, accessory power outlet CZ outage, thus protect electrical appliance reliably.
Add R in the circuit
8(value equals the resistance of relay J) in order to restriction relay coil J electric current, can save 50% electric energy.Electrochemical capacitor C
3Be boost capacitor, power supply passes through resistance R before not starting shooting
8To C
3Charging is bordering on service voltage, is beneficial to start.Diode D
6Be in order to prevent to shut down, the back electromotive force that produces owing to relay coil J damages BG
3With BG
4Diode D
7Be to be used for protecting regulator block 7809, when preventing its input short circuit, capacitor C
2Discharge is burnt it.
When using utility model control high-power electric appliance (as motor etc.), with triode BG
4Change the 3DD type into, BG
3Change 3DG12 type triode into, change corresponding power contact relay and get final product.
In order to improve this practical ratio of performance to price, enlarge the scope of application, added the circuit (as shown in Figure 1) in the frame of broken lines, make it increase following function:
1, electronic door bell.K switch
4Connect K
2Disconnect, use K
3Push-button switch, pitch frequency is by variable resistor R
9Transfer choosing.When loudspeaker Y is rung, LED
3Bright.
2, burglar alarm.K switch
4, K
2Connect, add a conductive connecting line A, C at 2 and (equal short circuit BG
5The emitter junction bias voltage ends it), when line was broken, loudspeaker Y was promptly rung, and LED
3Bright.
3, K switch
2Connect K
4Disconnect, 2 of A, B insert corresponding transducers can do that the temperature predetermined value is reported to the police, pressure limit is reported to the police, rain report to the police, water-column is reported to the police, children's wets the bed reports to the police etc., loudspeaker Y is rung and LED during warning
3Bright, fault rate is zero.
Used original paper of the utility model and best model and parameter are as follows:
BG
1, BG
2: 3DG12; BG
3: 3DG6, β＞50; BG
4: 3DG12, β＞50; BG
5: 3DG6; BG
6: 3AX81; D1-D4:1N4001; D
5: 2CP; D
6: 1N4001; D
8: 2CU; D
9: 2CU; DZ
1, DZ
2: voltage stabilizing value 5V, 2CW12; LED
1: green; LED
2: redness; LED
3: orange; C
1: 470 μ, 25V; C
2, C
3: 1000 μ, 16V; C
4: 0.022-0.044 μ; C
5: 470 μ, 6.3V; W
1: 1.5-3.3K; R
1: 20K; R
2: 15K; R
3: 8.2K; R
4: 10K; R
5: 2-5K; R
6: 50-120K; R
7: 2-5K; R
8: equal JR; R
9: 33K; R
10: 95K; R
11: 1.6K; B:3-5W; J:12V, JRX13F; 7805 regulator blocks: positive voltage stabilizing; 7809 regulator blocks: positive voltage stabilizing; K
1, K
2, K
4: stir or rotary switch; K
3: push-button switch; CZ: accessory power outlet; Loudspeaker Y: 8 Europe, 0.2-0.5W.
Through the installation test, the utility model function reaches designing requirement fully, uses common torch (No. 1 battery of two joints) light source, and remote control distance can reach 15 meters, and the control action time was less than 1 second, and strong interference immunity, and overvoltage protection is reliable.
Claims (4)
1, the multi-functional light-operated appliance switch of overvoltage protection formula that is made of elements such as power transformer, bridge rectifier, filter capacitor, regulator block (positive output), voltage stabilizing didoe, resistance, photodiode, relay, diode, triode, light-emitting diode, accessory power outlets is characterized in that:
1. light-operated boot-strap circuit is by photodiode D
8, voltage stabilizing didoe DZ
1, triode BG
3, BG
4, LED
1, relay coil J, often open electric shock J-3, resistance R
6, R
7, R
8, diode D
6, electrochemical capacitor C
3Constitute; Triode BG
3, BG
4Be connected into the series connection composite amplifier; LED
1Positive pole be connected to triode BG
4Emitter, negative pole is connected to rectifier bridge D
1-D
4The negative pole (ground connection) of output; Resistance R
8J connects with relay coil, and the other end of relay coil J is connected to triode BG
4Collector electrode, resistance R
8The other end be connected to the output of regulator block 7809; Diode D
6Be parallel to relay coil J, its positive pole is connected to triode BG
3, BG
4Collector electrode; Electrochemical capacitor C
3Positive pole be connected to resistance R
8With the common port of relay coil J, minus earth; Photodiode D
8Negative pole connect the output of regulator block 7809, positive termination voltage stabilizing didoe DZ
1Negative pole, voltage stabilizing didoe DZ
1Positive pole meet triode BG
3Base stage, resistance R
6The output of one termination regulator block 7809, the fixed contact of another relay termination normally opened contact J-3, resistance R
7The moving contact of one relay termination normally opened contact J-3, another termination voltage stabilizing didoe DZ
1Negative pole,
2. light-operated shutdown circuit is by resistance R
5, R
4, photodiode D
9, triode BG
2Constitute with the start partial circuit; Resistance R
5One termination regulator block, 7809 outputs, another termination photodiode D
9Negative pole, D
9Cathode series resistance R
4Back ground connection; Triode BG
2Base stage meet photodiode D
9Positive pole, grounded emitter, collector electrode meets voltage stabilizing didoe DZ
1Negative pole,
3. overvoltage crowbar is by triode BG
1, resistance R
1, R
2, R
3, variable resistor W
1, diode D
5And open and close machine partial circuit constitutes; Resistance R
1, variable resistor W
1Be connected into the overvoltage sample circuit and be connected to rectifier bridge D
1-D
4Output, triode BG
1Base series resistor R
2After be connected to variable resistor W
1Sliding end, triode BG
1Collector electrode be connected to the output of regulator block 7809, its emitter series resistance R
3Back ground connection; Diode D
5Positive pole be connected to triode BG
1Emitter, negative pole is connected to triode BG
2Base stage.
2, by the multi-functional light-operated appliance switch of the described overvoltage protection formula of claim 1, it is characterized in that triode BG
1, BG
2, BG
4Model be 3DG12, BG
3Model be 3DG6.
3, by claim 1 or the multi-functional light-operated appliance switch of 2 described overvoltage protection formulas, it is characterized in that by triode BG
5, BG
6, variable resistor R
9, capacitor C
4, loudspeaker Y, LED
3The audio oscillation alarm of forming, triode BG
6Collector electrode and the positive pole of loudspeaker Y join the minus earth of loudspeaker Y, K switch
3With K switch
2Back one in parallel is terminated at triode BG
6Emitter, the other end is connected to the output of regulator block 7805, the output of the input of regulator block 7805 and regulator block 7809 joins; Triode BG
5Collector electrode and triode BG
6Base stage join its emitter series connection LED
3Anodal back minus earth, its base stage series connection variable resistor R
9After be connected to triode BG
6Emitter, triode BG
6Collector electrode and triode BG
5Base stage between series capacitance C
4, K switch
4
4, by the multi-functional light-operated appliance switch of the described overvoltage protection formula of claim 3, it is characterized in that triode BG
5Model be 3DG6, triode BG
6Model be 3AX81.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92211993 CN2142621Y (en) | 1992-05-30 | 1992-05-30 | Overvoltage protection type multifunction light controlled appliance switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92211993 CN2142621Y (en) | 1992-05-30 | 1992-05-30 | Overvoltage protection type multifunction light controlled appliance switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2142621Y true CN2142621Y (en) | 1993-09-22 |
Family
ID=33763337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92211993 Expired - Fee Related CN2142621Y (en) | 1992-05-30 | 1992-05-30 | Overvoltage protection type multifunction light controlled appliance switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2142621Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102281690A (en) * | 2011-09-22 | 2011-12-14 | 任永斌 | Light emitting diode (LED) optic control road lamp |
| CN104833225A (en) * | 2015-05-15 | 2015-08-12 | 成都中冶节能环保工程有限公司 | Alarm type coke oven waste heat recovery power generation system based on efficiently-driving power source circuit |
| CN105099416A (en) * | 2015-09-23 | 2015-11-25 | 成都丝迈尔科技有限公司 | Electromagnetic chuck switching circuit for steel machining equipment |
-
1992
- 1992-05-30 CN CN 92211993 patent/CN2142621Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102281690A (en) * | 2011-09-22 | 2011-12-14 | 任永斌 | Light emitting diode (LED) optic control road lamp |
| CN104833225A (en) * | 2015-05-15 | 2015-08-12 | 成都中冶节能环保工程有限公司 | Alarm type coke oven waste heat recovery power generation system based on efficiently-driving power source circuit |
| CN105099416A (en) * | 2015-09-23 | 2015-11-25 | 成都丝迈尔科技有限公司 | Electromagnetic chuck switching circuit for steel machining equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |