CN207853864U - A kind of three line power down switch - Google Patents
A kind of three line power down switch Download PDFInfo
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- CN207853864U CN207853864U CN201820370985.0U CN201820370985U CN207853864U CN 207853864 U CN207853864 U CN 207853864U CN 201820370985 U CN201820370985 U CN 201820370985U CN 207853864 U CN207853864 U CN 207853864U
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- 230000011664 signaling Effects 0.000 claims abstract description 17
- 230000005611 electricity Effects 0.000 claims abstract description 6
- 239000003990 capacitor Substances 0.000 claims description 8
- 230000033228 biological regulation Effects 0.000 claims description 6
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
A kind of three line power down switch, including switching circuit, reduction voltage circuit, rectification circuit, ON-OFF control circuit, governor circuit and signaling module, the switching circuit are connect with firewire input terminal, load end and standby electricity source；The governor circuit is connect with ON-OFF control circuit and signaling module；The firewire input terminal is connect with reduction voltage circuit, rectification circuit, ON-OFF control circuit successively.The utility model controls relay, then switching on and off by relay control load by signaling module, stable and reliable in work.After electric current is by full-bridge rectification, then filtered capacitance rectifier, effectively reduce the alternating component in circuit, it is therefore prevented that the shake of relay improves the stability and service life of switch.By in firewire input terminal and load end inline fuse, improving the safety of circuit.
Description
Technical field
The utility model is related to switching technique fields, in particular to a kind of three line power down switch.
Background technology
Three-wire electronic switch currently on the market, operation principle are usually after carrying out decompression current stabilization to power supply, to pass through
Relay realization is switched on and is closed.However, existing three-wire electronic switch, current stabilization performance is poor, with exchange line
The electric current of wave is easy to influence the actuation of relay, leads to relay flutter, to generate noise, reduces the usage experience of user,
The performance and used life of switch is influenced simultaneously.In addition, existing switch safety is poor, it can not when the problems such as short circuit occurs
The safety of effective protection user and electrical appliance.
Invention content
The purpose of this utility model is to provide a kind of safety and stability, three lines power down switch with long service life.
A kind of three line power down switch, including switching circuit, reduction voltage circuit, rectification circuit, ON-OFF control circuit, governor circuit
And signaling module, the switching circuit are connect with firewire input terminal, load end and standby electricity source；The governor circuit and switch
Control circuit and signaling module connection；The firewire input terminal connects with reduction voltage circuit, rectification circuit, ON-OFF control circuit successively
It connects.
Further, the switching circuit is single-pole double-throw relay, and the common end of the relay is connect with load end,
Two switch terminals of the relay are connect with firewire input terminal and standby electricity source respectively.
Further, the ON-OFF control circuit includes triode, and the base stage of the triode connects with the signaling module
It connects, the collector of the triode is connect with the relay, the emitter ground connection of the triode.
Further, further include filter capacitor, the anode of the filter capacitor is connected to the rectification circuit and relay
Between, the cathode of the filter capacitor is grounded.
Further, the reduction voltage circuit is capacitance-resistance voltage reduction circuit, and the capacitance-resistance voltage reduction circuit includes resistance R26.
Further, the rectification circuit is full bridge rectifier.
Further, the signaling module is in audio-switch, photosensitive switch, infrared switch, thermoswitch, soft-touch control
One kind.
Further, further include the direct current regulation circuit that working power is provided for governor circuit, direct current regulation circuit input
End connection firewire input terminal.
Compared with prior art, the beneficial effects of the utility model are：By signaling module control relay, then by after
Switching on and off for electrical equipment control load, it is stable and reliable in work.After electric current is by full-bridge rectification, then filtered capacitance rectifier, have
Effect reduces the alternating component in circuit, it is therefore prevented that the shake of relay improves the stability and service life of switch.By
Firewire input terminal and load end inline fuse, improve the safety of circuit.
Description of the drawings
Fig. 1 is the structural schematic diagram of the three line power down switch of the utility model.
Fig. 2 is the circuit diagram of the specific embodiment of the three line power down switch of the utility model.
Specific implementation mode
The utility model is more fully retouched below with reference to relevant drawings for the ease of understanding the utility model,
It states.The better embodiment of the utility model is given in attached drawing.But the utility model can come in many different forms
It realizes, however it is not limited to embodiments described herein.
Referring to Fig. 1, the three line power down switch of the utility model include mainly switching circuit 100, it is reduction voltage circuit 200, whole
Current circuit 300, ON-OFF control circuit 400, governor circuit 500, signaling module 600 and direct current regulation circuit 700.Switching circuit
100 connect with firewire input terminal L, load end A and standby electricity source C.Governor circuit 500 and ON-OFF control circuit 400 and signal
Module 600 connects.Firewire input terminal L is sequentially connected rectification circuit 300, reduction voltage circuit 200, ON-OFF control circuit 400 and signal
Module 600.Direct current regulation circuit 700 is connect with firewire input terminal L, for providing working power for governor circuit 500.
Referring to Fig. 2, in specific embodiment of the utility model, switching circuit 100 uses single-pole double-throw relay K1A,
The common end 1 of relay K1A is connect with load end A, when switch in " standby " state when, the switch terminals 2 of relay K1A with it is standby
With power end C connections, work when stand-by power supply holding load is long under case of emergency.When switch is in " work " state, by leading
The external information that control circuit 500 is acquired according to signaling module 600, it is dynamic by 400 trigger switch circuit 100 of ON-OFF control circuit
Make, relay K1A switch terminals 2 are connect with firewire input terminal L, open load or load is closed in control.
Wherein, fuse F1 is in series between firewire input terminal L and load end A, when a short circuit occurs, fuse F1 is disconnected
It opens, to protect the safety of product itself and electrical appliance.
Reduction voltage circuit 200 its mainly include resistance R26, resistance R1, resistance R8 and capacitance C1.One end of resistance R26 and fire
The L connections of line input terminal, the other end are connect with resistance R1 and capacitance C1, and resistance R1 is in parallel with capacitance C1 again after connecting with resistance R8.
On the one hand input voltage is reduced to the size for being suitble to use, on the other hand to circuit by reduction voltage circuit 200 by resistance-capacitance depressurization
Stabilization is played in EMC tests.
Rectification circuit 300 includes full bridge rectifier BD1.Full bridge rectifier BD1 is made of four diodes, and first
Ac input end 301 is connect with reduction voltage circuit 200, and the first DC output end 302 is connect with ON-OFF control circuit 400, and second hands over
Stream input terminal 303 is connect with zero line side N, the second DC output end 304 ground connection.Electric main is carried out rectification by rectification circuit 300,
Direct current is provided for ON-OFF control circuit 400 and signaling module 600.
ON-OFF control circuit 400 includes mainly triode Q1, resistance R15A1, capacitance C3A1, resistance R16 and diode D4.
Triode Q1 is NPN type triode, and collector connect with one end of relay K1A, and emitter is grounded, base stage and resistance R16,
Connection signal module 600 after diode D4 series connection.Audio-switch, photosensitive switch, infrared switch, heat can be used in signaling module 600
One kind in quick switch, soft-touch control.After signaling module 600 receives useful signal, triode Q1 is transmitted a signal to,
Triode Q1 control relay K1A conductings, relay K1A switchings to firewire input terminal L, loaded work piece.
The anode of filter capacitor C5A1 is connected between rectification circuit 300 and one end of relay K1A, cathode ground connection.
Filter capacitor C5A1 is filtered the direct current after 300 rectification of rectified circuit, to be further reduced the exchange in electric current
Ingredient keeps the actuation of relay K1A more stable.
Although the description combination embodiments above to the utility model carries out, it is familiar with the art
Personnel can carry out many replacements according to above-mentioned content, modifications and variations, be obvious.Therefore, all such
It substitutes, improve and changes and be included in the spirit and scope of appended claims.
Claims (8)
1. a kind of three line power down switch, which is characterized in that including switching circuit, reduction voltage circuit, rectification circuit, switch control electricity
Road, governor circuit and signaling module, the switching circuit are connect with firewire input terminal, load end and standby electricity source；The master
Control circuit is connect with ON-OFF control circuit and signaling module；The firewire input terminal successively with reduction voltage circuit, rectification circuit, switch
Control circuit connects.
2. three lines power down switch according to claim 1, which is characterized in that the switching circuit is single-pole double throw relay
The common end of device, the relay is connect with load end, two switch terminals of the relay respectively with firewire input terminal and standby
It is connected with power end.
3. three lines power down switch according to claim 2, which is characterized in that the ON-OFF control circuit includes triode,
The base stage of the triode is connect with the signaling module, and the collector of the triode is connect with the relay, and described three
The emitter of pole pipe is grounded.
4. three lines power down switch according to claim 2, which is characterized in that further include filter capacitor, the filter capacitor
Anode be connected between the rectification circuit and relay, the cathode of filter capacitor ground connection.
5. three lines power down switch according to claim 1, which is characterized in that the reduction voltage circuit is capacitance-resistance voltage reduction circuit,
The capacitance-resistance voltage reduction circuit includes resistance R26.
6. three lines power down switch according to claim 1, which is characterized in that the rectification circuit is full bridge rectifier.
7. three lines power down switch according to claim 1, which is characterized in that the signaling module is audio-switch, photosensitive
One kind in switch, infrared switch, thermoswitch, soft-touch control.
8. three lines power down switch according to claim 1, which is characterized in that further include providing working power for governor circuit
Direct current regulation circuit, direct current regulation circuit input terminal connect firewire input terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820370985.0U CN207853864U (en) | 2018-03-19 | 2018-03-19 | A kind of three line power down switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820370985.0U CN207853864U (en) | 2018-03-19 | 2018-03-19 | A kind of three line power down switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207853864U true CN207853864U (en) | 2018-09-11 |
Family
ID=63424324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820370985.0U Active CN207853864U (en) | 2018-03-19 | 2018-03-19 | A kind of three line power down switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207853864U (en) |
-
2018
- 2018-03-19 CN CN201820370985.0U patent/CN207853864U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 516100 Jinhu Industrial Zone, Shihu Village, Baitang Town, Boluo County, Huizhou City, Guangdong Province Patentee after: Guangdong Honghe Lang Electrical Co., Ltd. Address before: 516100 Jinhu Industrial Zone, Shihu Village, Baitang Town, Boluo County, Huizhou City, Guangdong Province Patentee before: Guangdong red hi tech Industrial Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 516100 Jinhu Industrial Zone, Shihu Village, Baitang Town, Boluo County, Huizhou City, Guangdong Province Patentee after: Honghelang (Huizhou) Electric Co.,Ltd. Address before: 516100 Jinhu Industrial Zone, Shihu Village, Baitang Town, Boluo County, Huizhou City, Guangdong Province Patentee before: GUANGDONG HONGHELANG ELECTRICIAN Co.,Ltd. |