CN204145837U - A kind of power-off automatic time delay bedroom switch - Google Patents
A kind of power-off automatic time delay bedroom switch Download PDFInfo
- Publication number
- CN204145837U CN204145837U CN201420562731.0U CN201420562731U CN204145837U CN 204145837 U CN204145837 U CN 204145837U CN 201420562731 U CN201420562731 U CN 201420562731U CN 204145837 U CN204145837 U CN 204145837U
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- power
- switch
- bridge rectifier
- bedroom
- full bridge
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- 239000003990 capacitor Substances 0.000 claims abstract description 25
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 13
- 230000000694 effects Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model discloses a kind of power-off automatic time delay bedroom switch, it comprises: electric lighting HL, and its one end is connected to civil power live wire, and the other end is connected to the ON-OFF control circuit controlling its light on and off by a full bridge rectifier; ON-OFF control circuit, it comprises operable switch button K and the power-off delay circuit in parallel with described switch key, the crucial one end of described switch is connected to the cathode output end of full bridge rectifier, and the other end is connected to the cathode output end of full bridge rectifier by described power-off delay circuit; Described power-off delay circuit is made up of electrochemical capacitor C1, one-way SCR TR1, bidirectional diode DB1 and the second resistance R2.The power-off automatic time delay bedroom switch that the utility model provides has the advantages that cost is low, effect is good, is worth large-scale and promotes.
Description
Technical field
The utility model belongs to lighting of home field, particularly relates to a kind of power-off automatic time delay bedroom switch.
Background technology
At present, widely used bedroom switch is instant on switch, and namely one open namely bright, one closes the switch namely gone out.And in most of old times house desigh, mouthful place that only just enters in bedroom devises the switch key that can control electric lighting, and at the bedroom head of a bed, the switch with electric lighting is not installed yet, make people in bed, must must stand up doorway place close swap switch, and switch is once going out immediately blackening, just bringing great inconvenience, easily having caused collision and then causing accident to occur.If be improve designed lines, install control switch at the head of a bed, transformation (so just can not affect attractive in appearance) of just must must demolishing walls, not only wastes time and energy, but also needs extra cost of labor.
Utility model content
The utility model provides a kind of power-off automatic time delay bedroom switch for above-mentioned defect, this switch designs circuit is simple, the charge-discharge characteristic that make use of electrochemical capacitor cleverly maintains the conducting of controllable silicon short time, and then can the powering for electric lighting of short time after maintaining power-off, achieve automatic time delay.
The technical scheme that the utility model provides is:
A kind of power-off automatic time delay bedroom switch, it comprises:
Electric lighting HL, its one end is connected to civil power live wire, and the other end is connected to the ON-OFF control circuit controlling its light on and off by a full bridge rectifier;
ON-OFF control circuit, it comprises operable switch button K and the power-off delay circuit in parallel with described switch key, described switch key one end is connected to the cathode output end of full bridge rectifier, and the other end is connected to the cathode output end of full bridge rectifier by described power-off delay circuit;
Described power-off delay circuit is made up of electrochemical capacitor C1, one-way SCR TR1, bidirectional diode DB1 and the second resistance R2, wherein,
Described electrochemical capacitor C1 both positive and negative polarity is connected to the signal output part of switch key and the cathode output end of full bridge rectifier respectively, to make when switch key closes as its charging;
The anode of described one-way SCR is connected to the signal input part of switch key, negative electrode is connected to the cathode output end of full bridge rectifier, control pole is connected to described electrochemical capacitor positive pole through bidirectional diode, the second resistance, to make when switch key disconnects, bidirectional diode reached turn back voltage through electrochemical capacitor electric discharge and then trigger one-way SCR conducting.
Preferably, described full bridge rectifier comprises the full-bridge rectification element be made up of the first diode D1, the second diode D2, the 3rd diode D3 and the 4th diode D4, alternating current input one end of described full-bridge rectification element is connected to civil power live wire by described electric lighting HL, and the other end is connected to civil power zero line.
Preferably, described power-off automatic time delay bedroom switch also comprises: the first resistance R1, its one end is connected to the cathode output end of full bridge rectifier, and the other end is connected to the signal input part of switch key.
Preferably, the anode of described one-way SCR is electrically connected to the signal input part of described first resistance R1.
Preferably, described electric lighting is bulb.
Preferably, described switch key adopts 86 type switches.
Power-off automatic time delay bedroom described in the utility model switch make use of cleverly electrochemical capacitor charge-discharge characteristic and in conjunction with one-way SCR, realize when switch circuit breaking, capacitor discharge triggers one-way SCR conducting, by the short circuit of switch key short time, to be supplied to the short time conducting of electric lighting when power-off, and then ensure that switch is after cut out, it is for a moment bright that electric lighting can also continue, and provides conveniently to people.The utility model cost is low, and effect is good, is worth large-scale promotion.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of power-off automatic time delay bedroom described in the utility model switch.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail, can implements according to this with reference to specification word to make those skilled in the art.
As shown in Figure 1, the utility model provides a kind of power-off automatic time delay bedroom switch, and it comprises: electric lighting HL, and its one end is connected to civil power live wire L, and the other end is connected to the ON-OFF control circuit controlling its light on and off by a full bridge rectifier; Wherein, described ON-OFF control circuit comprises operable switch button K and the power-off delay circuit in parallel with described switch key, described switch key one end is connected to the cathode output end of full bridge rectifier, and the other end is connected to the cathode output end of full bridge rectifier by described power-off delay circuit; Described power-off delay circuit is made up of electrochemical capacitor C1, one-way SCR TR1, bidirectional diode DB1 and the second resistance R2, wherein, described electrochemical capacitor C1 both positive and negative polarity is connected to the signal output part of switch key and the cathode output end of full bridge rectifier respectively, to make when switch key closes as its charging; The anode of described one-way SCR is connected to the signal input part of switch key, negative electrode is connected to the cathode output end of full bridge rectifier, control pole is connected to described electrochemical capacitor positive pole through bidirectional diode, the second resistance, to make when switch key disconnects, bidirectional diode reached turn back voltage through electrochemical capacitor electric discharge and then trigger one-way SCR conducting.
Here, the cathode output end of described full bridge rectifier and cathode output end are respectively see a, b 2 point in Fig. 1.Wherein, second resistance R2 forms load during electrochemical capacitor C1 electric discharge, the two RC that combines constitutes a time constant, and this time constant determines the time of electrochemical capacitor electric discharge, and the charging capacity that also can be understood as electrochemical capacitor determines the delay time of this bedroom switch.For the value of R2, C1, be good to make delay time at 60S.And when electrochemical capacitor discharges, bidirectional diode both end voltage constantly increases, when reach its turn back voltage time, bidirectional diode triggering and conducting, and then make one-way SCR obtain a trigger current, now TR1 conducting, is just equivalent to switch key short circuit, continue to keep electric lighting to be communicated with of short duration between civil power until electrochemical capacitor tele-release to the greatest extent.
Above-mentioned said full bridge rectifier comprises the full-bridge rectification element be made up of the first diode D1, the second diode D2, the 3rd diode D3 and the 4th diode D4, alternating current input one end c of described full-bridge rectification element is connected to civil power live wire by described electric lighting HL, and other end d is connected to civil power zero line.This full bridge rectifier belongs to conventional design method, is not described in detail here to it.
As seen from Figure 1, described power-off automatic time delay bedroom switch also comprises: the first resistance R1, its one end is connected to the cathode output end of full bridge rectifier, and the other end is connected to the signal input part of switch key.The anode of described one-way SCR is electrically connected to the signal input part of described first resistance R1.This first resistance can play metering function.
See Fig. 1, preferably, described electric lighting is bulb to the utility model.Described switch key adopts 86 type switches, and namely the length of side is the switch key of 86mm square switch enclosure.
The circuit working principle of the power-off automatic time delay bedroom switch that the utility model provides is:
Civil power is the alternating current of 220V, and the cycle of an alternating current is 360 degree, positive half cycle 180 degree, negative half period 180 degree.During positive half cycle, the first diode D1 and the 4th diode D4 conducting in full bridge rectifier; During negative half period, the 3rd diode D3 and the second diode D2 conducting in full bridge rectifier;
When the switch is closed, alternating current outputs direct current from cathode output end a after full bridge rectifier rectification, this direct current flows through the first resistance R1, switch key K successively and charges to electrochemical capacitor C1, and the cathode output end b of full-bridge rectification point is flowed back to by the negative pole of electrochemical capacitor C1, be then back to civil power.In this process, although voltage is malleation between the anode of one-way SCR TR1 and negative electrode, because it controls the triggering that pole does not obtain bidirectional diode, therefore, the direct current exported through full bridge rectifier can only flow to switch key branch road;
When the switches are opened, electrochemical capacitor C1 discharges to the second resistance R2, and trigger bipolar diode DB1 conducting, make one-way SCR conducting because obtaining trigger current, now be equivalent to one-way SCR TR1 by switch key short circuit, continue to keep electric lighting HL to be communicated with until electrochemical capacitor tele-release to the greatest extent, realizes the automatic time delay of bedroom switch with this with the of short duration of civil power.
Although embodiment of the present utility model is open as above, but it is not restricted to listed in specification and execution mode utilization, it can be applied to various applicable field of the present utility model completely, for those skilled in the art, can easily realize other amendment, therefore do not deviating under the universal that claim and equivalency range limit, the utility model is not limited to specific details and illustrates here and the legend described.
Claims (6)
1. a power-off automatic time delay bedroom switch, is characterized in that, comprising:
Electric lighting HL, its one end is connected to civil power live wire, and the other end is connected to the ON-OFF control circuit controlling its light on and off by a full bridge rectifier;
ON-OFF control circuit, it comprises operable switch button K and the power-off delay circuit in parallel with described switch key, described switch key one end is connected to the cathode output end of full bridge rectifier, and the other end is connected to the cathode output end of full bridge rectifier by described power-off delay circuit;
Described power-off delay circuit is made up of electrochemical capacitor C1, one-way SCR TR1, bidirectional diode DB1 and the second resistance R2, wherein,
Described electrochemical capacitor C1 both positive and negative polarity is connected to the signal output part of switch key and the cathode output end of full bridge rectifier respectively, to make when switch key closes as its charging;
The anode of described one-way SCR is connected to the signal input part of switch key, negative electrode is connected to the cathode output end of full bridge rectifier, control pole is connected to described electrochemical capacitor positive pole through bidirectional diode, the second resistance, to make when switch key disconnects, bidirectional diode reached turn back voltage through electrochemical capacitor electric discharge and then trigger one-way SCR conducting.
2. power-off automatic time delay bedroom as claimed in claim 1 switch, it is characterized in that, described full bridge rectifier comprises the full-bridge rectification element be made up of the first diode D1, the second diode D2, the 3rd diode D3 and the 4th diode D4, alternating current input one end of described full-bridge rectification element is connected to civil power live wire by described electric lighting HL, and the other end is connected to civil power zero line.
3. power-off automatic time delay bedroom as claimed in claim 2 switch, it is characterized in that, also comprise: the first resistance R1, its one end is connected to the cathode output end of full bridge rectifier, and the other end is connected to the signal input part of switch key.
4. power-off automatic time delay bedroom as claimed in claim 3 switch, it is characterized in that, the anode of described one-way SCR is electrically connected to the signal input part of described first resistance R1.
5. power-off automatic time delay bedroom as claimed in claim 4 switch, it is characterized in that, described electric lighting is bulb.
6. power-off automatic time delay bedroom as claimed in claim 5 switch, it is characterized in that, described switch key adopts 86 type switches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420562731.0U CN204145837U (en) | 2014-09-26 | 2014-09-26 | A kind of power-off automatic time delay bedroom switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420562731.0U CN204145837U (en) | 2014-09-26 | 2014-09-26 | A kind of power-off automatic time delay bedroom switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204145837U true CN204145837U (en) | 2015-02-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420562731.0U Expired - Fee Related CN204145837U (en) | 2014-09-26 | 2014-09-26 | A kind of power-off automatic time delay bedroom switch |
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| CN (1) | CN204145837U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI577364B (en) * | 2015-05-22 | 2017-04-11 | 台達電子工業股份有限公司 | Control system applied to power device and control method thereof |
| CN106714395A (en) * | 2015-07-27 | 2017-05-24 | 常州明石晶电科技有限公司 | Arc protection circuit for LED lighting device and LED lighting device |
| CN110572055A (en) * | 2019-10-11 | 2019-12-13 | 昆明医科大学 | A low-voltage, high-current, high-power DC power supply and its application |
-
2014
- 2014-09-26 CN CN201420562731.0U patent/CN204145837U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI577364B (en) * | 2015-05-22 | 2017-04-11 | 台達電子工業股份有限公司 | Control system applied to power device and control method thereof |
| CN106714395A (en) * | 2015-07-27 | 2017-05-24 | 常州明石晶电科技有限公司 | Arc protection circuit for LED lighting device and LED lighting device |
| CN110572055A (en) * | 2019-10-11 | 2019-12-13 | 昆明医科大学 | A low-voltage, high-current, high-power DC power supply and its application |
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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 |
Granted publication date: 20150204 Termination date: 20150926 |
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| EXPY | Termination of patent right or utility model |