CN203057636U - Power-off self-lock switch - Google Patents
Power-off self-lock switch Download PDFInfo
- Publication number
- CN203057636U CN203057636U CN2013200174362U CN201320017436U CN203057636U CN 203057636 U CN203057636 U CN 203057636U CN 2013200174362 U CN2013200174362 U CN 2013200174362U CN 201320017436 U CN201320017436 U CN 201320017436U CN 203057636 U CN203057636 U CN 203057636U
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- China
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- button
- normally open
- lamp
- self
- opened contact
- Prior art date
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- Expired - Fee Related
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- 230000003203 everyday effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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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- Keying Circuit Devices (AREA)
Abstract
The utility model relates to a power-off self-lock switch, which belongs to the technical field of electronic control. The power-off self-lock switch comprises a normally open button, a normally closed button, an AC relay coil, a normally open contact I, a normally open contact II, and a lamp; wherein the normally open button and the normally closed button are connected in series, the normally closed button is connected with AC relay coil, the normally open contact I is connected with the normally open button in parallel, and connected with the AC relay coil in series, the normally open contact II is connected with the lamp in series and connected with the circuit in parallel, one end of the normally open button is connected with a fire line, the other end of the normally open button is connected with a zero line, one end of the lamp is connected with the normally open contact II and the other end of the lamp is connected with the zero line. The special circuit is adopted to form the electric self-lock, and the power-off self-lock is realized and when in the power on state, the switch has the automatic switching function, simultaneously the limitation of the switch is small, and the practical cost of the switch is low.
Description
Technical field
The utility model relates to a kind of self-locking switch for circuit breaking, belongs to field of electric control.
Background technology
At present, the power supply in the dormitory of each universities and colleges all is to be controlled by administrative staff's unified management, the power supply on daytime, automatically cut off the power supply during evening to the time of having a rest, to stipulated time next day automatically to dormitory power supply, when stopping power supply evening, the student is by manually closing switch every day, have a rest otherwise can bother the student when power next day, caused unnecessary waste simultaneously; And every day is numerous and diverse by manually switch cutting out, very inconvenient, in case forget then the rest of next day is subjected to very big bothering.Therefore, there are a lot of defectives in traditional mechanical switch, is not suitable for automatic management.
Summary of the invention
The purpose of this utility model provides a kind of self-locking switch for circuit breaking simple in structure, to solve the artificial problem that causes the wasting of resources, bothers rest that switch cuts out that needs.
The utility model is realized by following technical scheme: a kind of self-locking switch for circuit breaking comprises and often opens button 1, normally closed button 2, AC relay coil 3, normally opened contact I 4, normally opened contact II 5, lamp 6; Often driving button 1 connects with normally closed button 2, normally closed button 2 is connected with AC relay coil 3, normally opened contact I 4 with often open button 1 parallel connection and connect with AC relay coil 3, normally opened contact II 5 is connected with lamp 6 and with often to drive button 1, normally closed button 2, AC relay coil 3 in parallel, often opening button 1 one ends is connected with live wire, the other end is connected with zero line, and lamp 6 one ends are connected with normally opened contact II 5, and the other end is connected with zero line.
A kind of operation principle of self-locking switch for circuit breaking: when the keeper stops power supply, normally opened contact I 4, normally opened contact II 5 disconnect, lamp 6 extinguishes, when the unified power supply of keeper, because normally opened contact I 4, normally opened contact II 5 disconnect, so lamp 6 does not work, when needs are turned on light, press and often drive button 1, AC relay coil 3, normally opened contact I 4, normally opened contact II 5 closures, lamp 6 is namely lighted; When unclamping when often driving button 1, because circuit forms self-locking, normally opened contact I 4, normally opened contact II 5 are still closed, and lamp 6 is still bright.Lamp 6 extinguishes if desired, presses and often drives button 2, does not form self-locking, and normally opened contact I 4, normally opened contact II 5 disconnect, and lamp 6 extinguishes.
The beneficial effect that the utlity model has is: adopt special circuit to form, form electric self-locking, can realize cutting off self-lock, have the function of automatic switch when sending a telegram here again, simultaneously limited little, practical cost is low.
Description of drawings
Fig. 1 is electrical block diagram of the present utility model.
Each label is among the figure: 1: often drive button, 2: normally closed button, 3: AC relay coil, 4: normally opened contact I, 5: normally opened contact II, 6: lamp.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail, but content of the present utility model is not limited to described scope.
Embodiment 1: as shown in Figure 1, a kind of self-locking switch for circuit breaking comprises and often opens button 1, normally closed button 2, AC relay coil 3, normally opened contact I 4, normally opened contact II 5, lamp 6; Often driving button 1 connects with normally closed button 2, normally closed button 2 is connected with AC relay coil 3, normally opened contact I 4 with often open button 1 parallel connection and connect with AC relay coil 3, normally opened contact II 5 is connected with lamp 6 and with often to drive button 1, normally closed button 2, AC relay coil 3 in parallel, often opening button 1 one ends is connected with live wire, the other end is connected with zero line, and lamp 6 one ends are connected with normally opened contact II 5, and the other end is connected with zero line.
Claims (1)
1. a self-locking switch for circuit breaking is characterized in that: comprise and often open button (1), normally closed button (2), AC relay coil (3), normally opened contact I (4), normally opened contact II (5), lamp (6); Often driving button (1) connects with normally closed button (2), normally closed button (2) is connected with AC relay coil (3), normally opened contact I (4) is with often to drive button (1) in parallel and connect with AC relay coil (3), normally opened contact II (5) is connected with lamp (6) and with often to drive button (1), normally closed button (2), AC relay coil (3) in parallel, often opening button (1) one end is connected with live wire, the other end is connected with zero line, lamp (6) one ends are connected with normally opened contact II (5), and the other end is connected with zero line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200174362U CN203057636U (en) | 2013-01-14 | 2013-01-14 | Power-off self-lock switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200174362U CN203057636U (en) | 2013-01-14 | 2013-01-14 | Power-off self-lock switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203057636U true CN203057636U (en) | 2013-07-10 |
Family
ID=48740548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200174362U Expired - Fee Related CN203057636U (en) | 2013-01-14 | 2013-01-14 | Power-off self-lock switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203057636U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106936124A (en) * | 2017-03-07 | 2017-07-07 | 邵晓怡 | A kind of electrical equipment uses safe method for designing |
| CN111162683A (en) * | 2020-01-22 | 2020-05-15 | 上海晶丰明源半导体股份有限公司 | Power conversion circuit and method thereof |
-
2013
- 2013-01-14 CN CN2013200174362U patent/CN203057636U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106936124A (en) * | 2017-03-07 | 2017-07-07 | 邵晓怡 | A kind of electrical equipment uses safe method for designing |
| CN111162683A (en) * | 2020-01-22 | 2020-05-15 | 上海晶丰明源半导体股份有限公司 | Power conversion circuit and method thereof |
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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: 20130710 Termination date: 20150114 |
|
| EXPY | Termination of patent right or utility model |