CN201813358U - Electronic switch with fire protection urgent control function - Google Patents
Electronic switch with fire protection urgent control function Download PDFInfo
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- CN201813358U CN201813358U CN2010205784135U CN201020578413U CN201813358U CN 201813358 U CN201813358 U CN 201813358U CN 2010205784135 U CN2010205784135 U CN 2010205784135U CN 201020578413 U CN201020578413 U CN 201020578413U CN 201813358 U CN201813358 U CN 201813358U
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- electronic switch
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- fighting
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Abstract
The utility model relates to an electronic switch with a fire protection urgent control function. The electronic switch comprises an electronic switch main circuit and a fire protection urgent control circuit. One end of an alternating-current input end of a power transform circuit in the fire protection urgent control circuit is connected with a live wire end, and the other end of the alternating-current input end of the power transform circuit in the fire protection urgent control circuit is connected with a fire protection urgent control end; one end of a relay coil is connected with the collector of a first triode, and the other end of relay coil is connected with a direct-current output end of the power transform circuit; one end of a contact of a relay is connected with the live wire end, and the other end of the contact of the relay is connected with a load end; the emitter of the first triode is connected with a common ground, and the base of the first triode is connected with one end of a first resistor and the collector of a second triode; the other end of the first resistor is connected with the direct-current output end of the power transform circuit; and the emitter of the second triode is connected with the common ground, and the base of the second triode is connected with a driving end of the electronic switch main circuit. The circuits solve the problem that an induction voltage carried by the fire protection urgent control circuit has an influence on the electronic switch, and the electronic switch has the advantages of wire saving, low cost, high reliability and simplicity of implementation.
Description
Technical field
The utility model relates to a kind of switch, specifically is meant a kind of electronic switch with the anxious control function of fire-fighting.
Background technology
In the prior art, the electronic switch of the anxious control of band fire-fighting function has had extensive use, the single live wire infrared induction electronic switch harmony light-controlled electronic switch that specifically comprises the anxious control function of band fire-fighting, they all have three terminals, the anxious control end of live wire end LIVE, load end LOAD and fire-fighting C, as shown in Figure 1.When running into emergencies such as fire, the anxious control of fire-fighting switch closure, the anxious control of fire-fighting line is connected with the live wire L of fire-fighting power supply (general former circuit live wire end L is converted to the live wire end of fire-fighting emergency power supply by the live wire end of civil power by fire-fighting urgency control switching system automatic or manual, zero line is shared), the anxious control end of fire-fighting on each switch C is loaded with live wire 220V voltage and constitutes the loop by the anxious control circuit of the fire-fighting in the switch by load end LOAD, the anxious control circuit work of fire-fighting is forced switch open, light with load lamp so that emergency lighting to be provided.
Because the wire laying mode of the anxious control of most fire-fightings line is to walk same wire casing with power line, generally can have certain induced voltage on the anxious control of the fire-fighting line, have up to 150V, this voltage can be added in and make the anxious control circuit of fire-fighting also can not flow through certain electric current on the anxious control end of fire-fighting of switch when starting the anxious control function of fire-fighting, when causing switch to open fire-fighting function or fire-fighting function without reason being in critical condition and making switch and during conducting and close or shake, thereby cause the stroboscopic of illuminating lamp, also can damage illuminating lamp and switch in the course of time.
For addressing this problem, also have in the industry and adopt zero live wire to add the electronic switch that relay realizes having the anxious control function of fire-fighting, four terminals of its needs, and also switch needs connecting to neutral line N, and this has not only brought inconvenience to installation wiring, has also increased wiring cost.
The utility model content
The problem that the utility model need solve provides the electronic switch of the anxious control function of a kind of single live wire band fire-fighting.
According to the above-mentioned problem that needs solution, the technical scheme that the utility model is taked is:
A kind of electronic switch with the anxious control of fire-fighting function comprises the anxious control circuit of electronic switch main circuit and the fire-fighting that is connected with the electronic switch main circuit, and the anxious control circuit of described fire-fighting comprises a relay, power converting circuit, first triode, second triode and first resistance
One end of the ac input end of power converting circuit is connected with the live wire end, and the other end is connected with the anxious control end of fire-fighting, and an end of relay coil is connected with the collector electrode of first triode, and the other end is connected with the dc output end of power converting circuit,
Contact one end of relay is connected with the live wire end, and the other end is connected with load end, is connected with zero line after the load termination load, and relay contact is a normally-closed contact,
The emitter of first triode connects public ground, first transistor base is connected with an end of first resistance and the collector electrode of second triode, the other end of first resistance is connected with the dc output end of power converting circuit, the emitter of second triode be connected publicly, base stage is connected with the switch drive end of electronic switch main circuit, the anode of diode is connected with the node of relay coil with the collector electrode of first triode, and its negative electrode is connected with the node of the dc output end of relay coil and power converting circuit.
Power converting circuit described in the such scheme comprises by electric capacity with second resistance of electric capacity parallel connection and the 3rd resistance of connecting with them and a rectifier bridge forms RC resistance-capacitance depressurization rectification circuit.Described power converting circuit also can be a switching power circuit.
The utility model has following remarkable advantage compared to existing technology:
The electronic switching circuit of the anxious control of band fire-fighting described in the utility model function is skillfully constructed, with succinct circuit can solve the anxious control of fire-fighting circuit with induced voltage to the influence that electronic switch produces, have the wiring of saving, with low cost, reliability is high, the characteristics that are easy to realize.
Anxious control circuit two inputs of fire-fighting in the utility model, the anxious control end of the fire-fighting C that input connects switch, another input connects the live wire LIVE end of switch, effectively removes induced voltage on the anxious control of the fire-fighting circuit to the influence of switch, makes the switch safety and reliability.Owing to used relay, eliminated because the controllable silicon that occurs easily as switching device with controllable silicon punctures and overheated potential safety hazard such as on fire as switching device.
Description of drawings
Fig. 1 is the schematic diagram of prior art;
Fig. 2 is the theory diagram of switch described in the utility model;
Fig. 3 is the schematic diagram of switch described in the utility model;
Embodiment
Understanding for the ease of those skilled in the art is described in further detail the utility model below in conjunction with accompanying drawing:
Shown in Fig. 2,3, the electronic switch of the anxious control of described band fire-fighting function comprises electronic switch main circuit 1, the anxious control circuit 2 of fire-fighting, and the anxious control switch FC of anxious control circuit 2 cooperatings of fire-fighting.
The anxious control circuit 2 of described fire-fighting comprises a relay J 1, power converting circuit 21, the first triode Q1, the second triode Q2 and first resistance R 1, one end of the ac input end of power converting circuit 21 is connected with live wire end LIVE, the other end is connected with the anxious control end of fire-fighting C, one end of relay J 1 coil is connected with the collector electrode of the first triode Q1, the other end is connected with the dc output end VCC of power converting circuit 21, contact one end of relay is connected with live wire end LIVE, the other end is connected with load end (LOAD), and relay contact is a normally-closed contact.
The emitter of the first triode Q1 connects public ground, base stage is connected with an end of first resistance R 1 and the collector electrode of the second triode Q2, the other end of first resistance R 1 is connected with the dc output end VCC of power converting circuit 21, the emitter of the second triode Q2 be connected publicly, base stage is connected with the switch drive end TR of electronic switch main circuit 1, the anode of diode D1 is connected with the node of relay J 1 coil and the collector electrode of the first triode Q1, and its negative electrode is connected with the node of the dc output end VCC of relay J 1 coil and power converting circuit 21.
Power converting circuit 21 comprises by capacitor C 1 with second resistance R 2 of capacitor C 1 parallel connection and the 3rd resistance R 3 of connecting with them and a rectifier bridge BR1 forms RC resistance-capacitance depressurization rectification circuit.
The operation principle of electronic switch that the utlity model has the anxious control function of fire-fighting is as follows:
When Circuits System is installed, the end of anxious control switch FC is connected with zero line N, and the other end is connected with the anxious control of fire-fighting line, and the anxious control end of the fire-fighting of each electronic switch C is connected with the anxious control of fire-fighting line, live wire end LIVE with live wire be connected, load end LOAD is connected back connecting to neutral line N with load LAMP.，
When not starting the anxious control function of fire-fighting, the anxious control of fire-fighting switch FC is in closure state, and anxious control switch FC is the contact of an A.C. contactor (or relay) normally, and we select normally-closed contact for use here, and this A.C. contactor is controlled by fire-fighting urgency control system.
The current supply circuit power supply that the ac input end of the power converting circuit 21 in the anxious control circuit 2 of the fire-fighting in the electronic switch constitutes by live wire end LIVE, the anxious control end of fire-fighting C, the anxious control of fire-fighting line, anxious control switch FC, zero line N, the conducting of the base stage of the first triode Q1 by first resistance R, 1 on-load voltage, the base stage of the second triode Q2 does not have applied signal voltage and ends, therefore relay J 1 coil electricity adhesive, normally-closed contact disconnects, and makes electronic switch enter normal human body infrared induction or acousto-optic control operating state.
When electronic switch during by human body or sounds trigger, the drive end TR output high level of electronic switch main circuit drives triode Q2 on the secondth conducting, the voltage that first resistance R 1 is loaded on the first triode Q1 base stage drags down, the first triode Q1 ends, make relay J 1 coil blackout, its normally-closed contact closure, switch conduction is lighted the load bulb.Drive the second triode Q2 by electronic switch main circuit drive end TR output low level after time-delay a period of time and end, the first triode Q1 conducting, it is electric that relay J 1 coil is got, and its normally-closed contact disconnects, and switch turn-offs and extinguishes the load bulb.
When running into emergencies such as fire, the anxious control of fire-fighting switch FC (contactor coil energising adhesive contact disconnects) disconnects, power converting circuit 21 ac input ends outage in the anxious control circuit 2 of fire-fighting in the electronic switch, relay J 1 coil blackout normally-closed contact closure, make electronic switch force conducting to light load lamp bubble (this moment, live wire L was converted to the live wire power supply of fire-fighting emergency power supply by former civil power), the electronic switch main circuit of electronic switch inside quits work, and is normal operating condition up to fire-fighting is suddenly controlled recovering state.
Anxious control circuit two inputs of fire-fighting in the utility model, the anxious control end of the fire-fighting C that input connects switch, another input connects the live wire LIVE end of switch, effectively removes induced voltage on the anxious control of the fire-fighting circuit to the influence of switch, makes the switch safety and reliability.Owing to used relay, eliminated because the controllable silicon that occurs easily as switching device with controllable silicon punctures and overheated potential safety hazard such as on fire as switching device.
In the practical application, the power converting circuit 21 in the utility model also can adopt existing switching power circuit.
Above embodiment only is the preferable implementation of the utility model, can not limit the utility model with this, is not breaking away under the utility model design prerequisite, and its any being equal to of doing is replaced and minor variations all belongs to protection range of the present utility model.
Claims (2)
1. the electronic switch with the anxious control of fire-fighting function comprises the anxious control circuit (2) of electronic switch main circuit (1) and the fire-fighting that is connected with the electronic switch main circuit, it is characterized in that:
The anxious control circuit of described fire-fighting (2) comprises a relay (J1), power converting circuit (21), and first triode (Q1), second triode (Q2) and first resistance (R1),
One end of the ac input end of power converting circuit (21) is connected with live wire end (LIVE), and the other end is connected with the anxious control end of fire-fighting (C),
One end of relay (J1) coil is connected with the collector electrode of first triode (Q1), and the other end is connected with the dc output end (VCC) of power converting circuit (21),
Contact one end of relay is connected with live wire end (LIVE), and the other end is connected with load end (LOAD), and relay contact is a normally-closed contact,
The emitter of first triode (Q1) connects public ground, base stage is connected with an end of first resistance (R1) and the collector electrode of second triode (Q2), the other end of first resistance (R1) is connected with the dc output end VCC of power converting circuit (21), the emitter of second triode (Q2) be connected publicly, base stage is connected with the switch drive end (TR) of electronic switch main circuit (1), the anode of diode (D1) is connected with the node of relay (J1) coil and the collector electrode of first triode (Q1), and its negative electrode is connected with the node of the dc output end (VCC) of relay (J1) coil and power converting circuit (21).
2. the electronic switch of the anxious control of band fire-fighting according to claim 1 function is characterized in that:
Described power converting circuit (21) comprises by electric capacity (C1) with in parallel second resistance (R2) of electric capacity (C1) and the 3rd resistance (R3) of connecting with them and a rectifier bridge (BR1) forms RC resistance-capacitance depressurization rectification circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205784135U CN201813358U (en) | 2010-10-22 | 2010-10-22 | Electronic switch with fire protection urgent control function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205784135U CN201813358U (en) | 2010-10-22 | 2010-10-22 | Electronic switch with fire protection urgent control function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201813358U true CN201813358U (en) | 2011-04-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205784135U Expired - Fee Related CN201813358U (en) | 2010-10-22 | 2010-10-22 | Electronic switch with fire protection urgent control function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201813358U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102761324A (en) * | 2012-07-24 | 2012-10-31 | 惠州祺瑞电工有限公司 | Electric delay switch |
| CN104066222A (en) * | 2013-03-21 | 2014-09-24 | 海洋王（东莞）照明科技有限公司 | Light fixture emergency power supply circuit |
-
2010
- 2010-10-22 CN CN2010205784135U patent/CN201813358U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102761324A (en) * | 2012-07-24 | 2012-10-31 | 惠州祺瑞电工有限公司 | Electric delay switch |
| CN102761324B (en) * | 2012-07-24 | 2015-04-08 | 惠州祺瑞电工有限公司 | Electric delay switch |
| CN104066222A (en) * | 2013-03-21 | 2014-09-24 | 海洋王（东莞）照明科技有限公司 | Light fixture emergency power supply circuit |
| CN104066222B (en) * | 2013-03-21 | 2016-09-07 | 海洋王（东莞）照明科技有限公司 | Light fixture emergency supply circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHONGQING ENSHENG ELECTRICAL APPLIANCE CO., LTD. Free format text: FORMER OWNER: CHONGQING ENLIN ELECTRIC CO., LTD. Effective date: 20111228 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20111228 Address after: 404000, Chongqing, Wanzhou by the emperor Park standard factory building E, two floor Patentee after: Chongqing grace Electric Appliance Co., Ltd. Address before: 404000 standard factory building D, Emperor garden, Wanzhou Industrial Park, Chongqing Patentee before: CHONGQING ENLIN ELECTRICAL APPLIANCE CO., LTD. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110427 Termination date: 20121022 |