CN204442319U - Single live wire access switch - Google Patents
Single live wire access switch Download PDFInfo
- Publication number
- CN204442319U CN204442319U CN201520232234.9U CN201520232234U CN204442319U CN 204442319 U CN204442319 U CN 204442319U CN 201520232234 U CN201520232234 U CN 201520232234U CN 204442319 U CN204442319 U CN 204442319U
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- CN
- China
- Prior art keywords
- rectifier bridge
- photoelectrical coupler
- live wire
- diode
- control circuit
- 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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Abstract
The utility model provides a kind of single live wire access switch.Itself and load are serially connected on civil power, it comprises control circuit, transformer, two rectifier bridges, photoelectrical coupler, three diodes and electric capacity, two terminals of the first rectifier bridge are connected on civil power, two other terminals one end ground connection of first rectifier bridge, the other end connects the positive pole of a diode and an output of photoelectrical coupler, another output head grounding of photoelectrical coupler, the negative pole of this diode connects one end of electric capacity and the low-voltage direct forward output of control circuit, the other end ground connection of electric capacity, the low-voltage direct negative sense output head grounding of control circuit, the switch control terminal of an input connection control circuit of photoelectrical coupler, another input end grounding of photoelectrical coupler, another two diodes and transformers connected in parallel access civil power, two terminals of the second rectifier bridge connect secondary coil, another two terminals one end ground connection, the other end connects electric capacity.The utility model can realize single live wire power getting.
Description
Technical field
The utility model relates to electronic switching technology field, particularly relates to a kind of single live wire access switch.
Background technology
Traditional mechanical switch needs user's execute-in-place, can not realize Long-distance Control.For this reason, occurred wireless intelligent switch, this intelligent switch can realize remote control function.But the switch wiring of traditional-family is all a live wire, and the switch bit of this intelligent switch is equipped with zero line and live wire two lines are introduced, so, intelligent switch just can not be installed in renovated house, otherwise just needs rewiring, and user needs to pay significant cost for this reason.
Utility model content
The technical problem that the utility model mainly solves is to provide a kind of single live wire access switch, can realizing single live wire power getting, especially realizing single live wire power getting when not changing wire laying mode.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: provide a kind of single live wire access switch, described single live wire access switch and load are serially connected on 220V civil power, described single live wire access switch comprises control circuit, transformer, first rectifier bridge, second rectifier bridge, photoelectrical coupler, first diode, second diode, 3rd diode and electric capacity, two terminals of described first rectifier bridge are connected on 220V civil power, two other terminals one end ground connection of described first rectifier bridge, the other end connects the positive pole of the first diode and an output of photoelectrical coupler, another output head grounding of described photoelectrical coupler, the negative pole of described first diode connects one end of electric capacity and the low-voltage direct forward output of control circuit, the other end ground connection of described electric capacity, the low-voltage direct negative sense output head grounding of described control circuit, an input of described photoelectrical coupler connects the switch control terminal of described control circuit, another input end grounding of described photoelectrical coupler, be connected on 220V civil power with described first rectifier bridge after described second diode and described 3rd diode reverse parallel connection, the primary coil of described transformer and described 3rd diodes in parallel, the two ends of the secondary coil of described transformer connect two terminals of the second rectifier bridge, two other terminals one end ground connection of described second rectifier bridge, the other end connects low-voltage direct forward output, wherein, when described single live wire access switch OFF, described switch control terminal output low level, when described single live wire access switch connection, described switch control terminal exports high level.
Be different from the situation of prior art, the beneficial effects of the utility model are: the rectified action utilizing rectifier bridge, and the transformer action of transformer, make no matter load whether electric, low-voltage dc power supply can be provided for control circuit, thus can single live wire power getting be realized, especially when not changing wire laying mode.
Accompanying drawing explanation
Fig. 1 is the circuit theory schematic diagram of the utility model embodiment list live wire access switch.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Referring to Fig. 1, is the circuit theory schematic diagram of the utility model embodiment list live wire access switch.Single live wire access switch of the present embodiment and load L are serially connected on 220V civil power.Single live wire access switch comprises control circuit S, transformer B1, first rectifier bridge Q1, second rectifier bridge Q2, photoelectrical coupler M, first diode D1, second diode D2, 3rd diode D3 and electric capacity C1, two terminals of rectifier bridge Q1 are connected on 220V civil power, namely the A in figure, between B node, two other terminals one end ground connection of rectifier bridge Q1, the other end connects the positive pole of the first diode D1 and M output of photoelectrical coupler, another output head grounding of photoelectrical coupler M, the negative pole of the first diode D1 connects one end of electric capacity C1 and the low-voltage direct forward output D of control circuit S, the other end ground connection of electric capacity C1, the low-voltage direct negative sense output C ground connection of control circuit S, the switch control terminal G of an input connection control circuit S of photoelectrical coupler M, another input end grounding of photoelectrical coupler M, be connected on 220V civil power with the first rectifier bridge Q1 after second diode D2 and the 3rd diode D3 reverse parallel connection, the primary coil of transformer B1 is in parallel with the 3rd diode B3, the two ends of the secondary coil of transformer B1 connect two terminals of the second rectifier bridge Q2, two other terminals one end ground connection of second rectifier bridge Q2, the other end connects low-voltage direct forward output D, wherein, when single live wire access switch OFF, switch control terminal G output low level, when single live wire access switch connection, switch control terminal G exports high level.
Specifically, photoelectrical coupler M is as the switch of control load L, and photoelectrical coupler M conducting is equivalent to switch and closes, and photoelectrical coupler M cut-off is equivalent to switch and disconnects.
When single live wire access switch OFF, switch control terminal G output low level, photoelectrical coupler M ends, now, 220V civil power passes through rectifier bridge Q1 rectification, then, electric current flows through D1, provides low-voltage dc power supply by after electric capacity C1 filtering to control circuit S, has ensured the supply of standby power.
When single live wire access switch connection, switch control terminal G exports high level, and photoelectrical coupler M conducting, load L obtains electric and normally works, and has electric current to flow through, electric current must be had to flow through primary coil and the first rectifier bridge Q1 of transformer B1 in load circuit.Boosted by transformer B1, then by providing low-voltage dc power supply to after the second rectifier bridge Q2 rectification control circuit S.There is provided low-voltage dc power supply also to after the first rectifier bridge Q1 rectification control circuit S.Wherein, second diode D2 and the 3rd diode D3 is attempted by the primary coil of transformer B1, the voltage of primary coil is limited in about 0.7V, can prevents transformer B1 primary coil from burning out, also can prevent because load L electric current is excessive and cause output voltage too high.
By the way, no matter single live wire access switch of the utility model embodiment is in photoelectrical coupler conducting or when ending, low-voltage dc power supply can be provided for control circuit, and because single live wire access switch is connected on single live wire, thus can single live wire power getting be realized, especially realize single live wire power getting when not changing wire laying mode.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model specification and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (1)
1. a single live wire access switch, it is characterized in that, described single live wire access switch and load are serially connected on 220V civil power, described single live wire access switch comprises control circuit, transformer, first rectifier bridge, second rectifier bridge, photoelectrical coupler, first diode, second diode, 3rd diode and electric capacity, two terminals of described first rectifier bridge are connected on 220V civil power, two other terminals one end ground connection of described first rectifier bridge, the other end connects the positive pole of the first diode and an output of photoelectrical coupler, another output head grounding of described photoelectrical coupler, the negative pole of described first diode connects one end of electric capacity and the low-voltage direct forward output of control circuit, the other end ground connection of described electric capacity, the low-voltage direct negative sense output head grounding of described control circuit, an input of described photoelectrical coupler connects the switch control terminal of described control circuit, another input end grounding of described photoelectrical coupler, be connected on 220V civil power with described first rectifier bridge after described second diode and described 3rd diode reverse parallel connection, the primary coil of described transformer and described 3rd diodes in parallel, the two ends of the secondary coil of described transformer connect two terminals of the second rectifier bridge, two other terminals one end ground connection of described second rectifier bridge, the other end connects low-voltage direct forward output, wherein, when described single live wire access switch OFF, described switch control terminal output low level, when described single live wire access switch connection, described switch control terminal exports high level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520232234.9U CN204442319U (en) | 2015-04-16 | 2015-04-16 | Single live wire access switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520232234.9U CN204442319U (en) | 2015-04-16 | 2015-04-16 | Single live wire access switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204442319U true CN204442319U (en) | 2015-07-01 |
Family
ID=53610131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520232234.9U Expired - Fee Related CN204442319U (en) | 2015-04-16 | 2015-04-16 | Single live wire access switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204442319U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104753510A (en) * | 2015-04-16 | 2015-07-01 | 成都互触科技有限公司 | Single-live wire access switch |
-
2015
- 2015-04-16 CN CN201520232234.9U patent/CN204442319U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104753510A (en) * | 2015-04-16 | 2015-07-01 | 成都互触科技有限公司 | Single-live wire access switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 1, No. 610041, 10 floor, No. 69, Tianfu Third Street, Chengdu hi tech Zone, Sichuan, 1017 Patentee after: Chengdu wonder Technology Co., Ltd. Address before: 1, No. 610041, 10 floor, No. 69, Tianfu Third Street, Chengdu hi tech Zone, Sichuan, 1017 Patentee before: Chengdu Hu Chu Science and Technology Ltd. |
|
| 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: 20150701 Termination date: 20180416 |