CN201830230U - Electronic switch with fire-fighting emergency control function - Google Patents
Electronic switch with fire-fighting emergency control function Download PDFInfo
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- CN201830230U CN201830230U CN2010205609117U CN201020560911U CN201830230U CN 201830230 U CN201830230 U CN 201830230U CN 2010205609117 U CN2010205609117 U CN 2010205609117U CN 201020560911 U CN201020560911 U CN 201020560911U CN 201830230 U CN201830230 U CN 201830230U
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- fire
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- electronic switch
- fighting
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Abstract
The utility model relates to an electronic switch with a fire-fighting emergency control function, comprising an electronic switch main circuit, a driving circuit which is driven by the electronic switch main circuit to lead a load to work, and a fire-fighting emergency control circuit, wherein the fire-fighting emergency control circuit comprises a relay and a power supply exchange circuit; one end of the alternating-current input end of the power supply exchange circuit is connected with a live-wire end, and the other end is connected with a fire-fighting emergency control end; a coil of the relay is connected between the positive electrode and the negative electrode of the direct-current output end of the power supply exchange circuit; and the power supply exchange circuit comprises an RC (resistance-capacitance) voltage-reducing rectifying circuit consisting of a capacitor, a resistor connected with the capacitor in parallel, a second resistor connected with the capacitor and the resistor in series, and a rectifying bridge. One end of a contact of the relay is connected with the live-wire end, the other end is connected with a load end and the contact of the relay is a normally-closed contact. The electronic switch solves the problem that the induction voltage of the fire-fighting emergency control circuit generates influence on the electronic switch, and has the characteristics that the wire distribution is saved, the cost is low, the reliability is high, and the implementation is easy.
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 a kind of single-fire-wire electronic switch that has the anxious control function of 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 electronic switch main circuit, drives the drive circuit that makes loaded work piece by the electronic switch main circuit, also includes the anxious control circuit of fire-fighting, and the anxious control circuit of described fire-fighting comprises a relay and power converting circuit,
One termination live wire end of the ac input end of power converting circuit, the anxious control end of another termination fire-fighting, the coil of relay is connected between the dc output end both positive and negative polarity 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, and relay contact is a normally-closed contact;
Power converting circuit described in the technique scheme comprises by electric capacity with electric capacity parallel resistor and second resistance of connecting with them and a rectifier bridge forms RC resistance-capacitance depressurization rectification circuit.
Described drive circuit comprises one second relay, triode and diode, contact one end of second relay is connected with the live wire end, the other end is connected with load end, coil one end of second relay is connected with the collector electrode of triode and the anode of diode, the coil other end of second relay is connected with second dc output end of power converting circuit and the negative electrode of diode, the base stage of triode is connected with the switch drive end of electronic switch main circuit, emitter be connected publicly.
As improvement of the technical scheme, described second dc output end can have two kinds of connectivity scenarios, a kind of is that the dc output end positive pole of power converting circuit is given the power supply of second relay as second dc output end, is connected in parallel between the dc output end both positive and negative polarity of power converting circuit in this scheme to be used for the Zener diode and the filter capacitor of voltage stabilizing and filtering;
Another scheme is that the dc output end negative pole of second dc output end and power converting circuit links together, can make the relay and second relay be in series connection when work, the coil of Zener diode and relay is connected in series between the dc output end both positive and negative polarity of power converting circuit in this scheme.
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 exerting an influence of electronic switch, 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 first embodiment schematic diagram of switch described in the utility model;
Fig. 4 is the second embodiment schematic diagram of switch described in the utility model;
Fig. 5 is the 3rd an embodiment 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 drives the drive circuit 3 that makes loaded work piece by electronic switch main circuit 1.
The anxious control circuit 2 of described fire-fighting comprises a relay J 1 and power converting circuit 21.One termination live wire end LIVE of the ac input end of power converting circuit, the anxious control end of another termination fire-fighting C.Concrete, described power converting circuit 21 comprises by capacitor C 1 with capacitor C 1 parallel resistor R1 and second resistance R 2 of connecting with them and a rectifier bridge BR1 forms RC resistance-capacitance depressurization rectification circuit.
The coil of relay J 1 is connected with dc output end both positive and negative polarity DC+, the DC-of power converting circuit 21, and contact one end of relay is connected with live wire end LIVE, and the other end is connected with load end LOAD, and relay J 1 contact is a normally-closed contact.
Described drive circuit comprises one second relay J 2, triode Q1 and diode D1.Contact one end of second relay J 2 is connected with live wire end LIVE, and the other end is connected with load end LOAD.Coil one end of second relay J 2 is connected with the collector electrode of triode Q1 and the anode of diode D1, the other end of described coil is connected with second dc output end VCC of power converting circuit and the negative electrode of diode D1, the base stage of triode Q1 is connected with the switch drive end TR of electronic switch main circuit, emitter be connected publicly.
As shown in Figure 3, the anodal DC+ of dc output end in the power converting circuit 21 of the anxious control circuit 2 of fire-fighting, be that rectifier bridge BR1 output head anode is connected with coil one end of relay J 1, dc output end negative pole DC-in the power converting circuit 21, the negative pole that is rectifier bridge BR1 output is connected with the coil other end of relay J 1, between rectifier bridge BR1 output positive and negative charge DC+, DC-, be connected with Zener diode ZD1 and filter capacitor C2 and be used for voltage stabilizing and filtering, make output voltage meet relay J 1 coil requirement.Rectifier bridge BR1 output head anode gives second relay J 2 power supplies as the second dc output end VCC simultaneously in this scheme.
One the 3rd resistance R 3 of between the second dc output end VCC and the 3rd dc output end VDD, also connecting, be used for voltage regulation filtering at the 3rd dc output end vdd terminal of the 3rd resistance R 3 to connect one second Zener diode ZD2 and the 3rd capacitor C 3, the 4th capacitor C 4 publicly, make the output voltage of the 3rd dc output end VDD meet the requirement of electronic switch main circuit 1.
The dc output end positive pole that above-mentioned scheme shown in Figure 3 is a power converting circuit is given the power supply of second relay as second dc output end.
Second kind of scheme is referring to Fig. 4, this scheme is different with Fig. 3 connectivity scenario is between the coil of relay J 1 and the anodal DC+ and another dc output end VCC that Zener diode ZD1 is connected on rectifier bridge BR1 output, VCC and DC-link together, can make two relay coils when work, be in series connection like this, further reduced the average anode current of power converting circuit, can also further reduce the capacity of the capacitor C 1 in the RC resistance-capacitance depressurization rectification circuit, promptly reduce power consumption and reduced volume again.
The third scheme is referring to Fig. 5, and what this scheme was different with Fig. 4 connectivity scenario is capacitor C2 and Zener diode ZD1 and second relay J, 1 coils from parallel connection of coils, can suitably reduce the requirement of withstand voltage of capacitor C2 like this.
The operation principle of the electronic switch of the anxious control of the utility model band fire-fighting function is as follows:
When Circuits System is installed, the end of anxious control switch FC is connected with zero line N, the other end is connected with the anxious control of fire-fighting line, 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 is connected with live wire, load end LOAD is connected with load, the anxious control of fire-fighting switch FC is in closure state when not starting fire-fighting urgency control function, anxious control switch FC is the contact of an A.C. contactor (or relay) normally, here we select normally-closed contact for use, and this A.C. contactor is controlled by the anxious control of fire-fighting 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, 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 Q1 conducting, make second relay J, 2 coils get electric adhesive, the normally opened contact closure, switch conduction is lighted the load bulb, automatically shuts down the back bulb by electronic switch after time-delay a period of time and extinguishes.
When the anxious control of emergency fire-fighting switch FC (contactor coil energising adhesive contact disconnects) such as running into fire 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.
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 (5)
1. the electronic switch with the anxious control of fire-fighting function comprises electronic switch main circuit (1), drives the drive circuit (3) that makes loaded work piece by electronic switch main circuit (1), also includes the anxious control circuit (2) of fire-fighting, it is characterized in that:
The anxious control circuit of described fire-fighting (2) comprises a relay (J1) and power converting circuit (21),
One termination live wire end (LIVE) of the ac input end of power converting circuit (21), the anxious control end of another termination fire-fighting (C),
The coil of relay (J1) is connected between the dc output end both positive and negative polarity (DC+, DC-) 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.
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 electric capacity (C1) parallel resistor (R1) and second resistance (R2) of connecting with them and a rectifier bridge (BR1) forms RC resistance-capacitance depressurization rectification circuit.
3. the electronic switch of the anxious control of band fire-fighting according to claim 1 function is characterized in that:
Described drive circuit comprises one second relay (J2), triode (Q1) and diode (D1),
Contact one end of second relay (J2) is connected with live wire end (LIVE), and the other end is connected with load end (LOAD),
Coil one end of second relay (J2) is connected with the anode of the collector electrode of triode (Q1) and diode (D1), the coil other end of second relay (J2) is connected with second dc output end (VCC) of power converting circuit and the negative electrode of diode (D1), the base stage of triode (Q1) is connected with the switch drive end (TR) of electronic switch main circuit (1), emitter be connected publicly.
4. according to claim 2 or the anxious electronic switch of controlling function of 3 described band fire-fightings, it is characterized in that: be connected in parallel between the dc output end both positive and negative polarity of power converting circuit (21) (DC+, DC-) and be used for the Zener diode ZD1 and the filter capacitor C2 of voltage stabilizing and filtering, the dc output end positive pole (DC+) of power converting circuit (21) is given second relay (J2) power supply as second dc output end (VCC).
5. according to the electronic switch of claim 2 or the anxious control of 3 described band fire-fightings function, it is characterized in that: the coil of Zener diode (ZD1) and relay (J1) is connected in series between the dc output end both positive and negative polarity (DC+, DC-) of power converting circuit (21),
Second dc output end (VCC) links together with the dc output end negative pole (DC-) of power converting circuit (21), can make relay (J1) and second relay (J2) be in series connection when work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205609117U CN201830230U (en) | 2010-10-12 | 2010-10-12 | Electronic switch with fire-fighting emergency control function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205609117U CN201830230U (en) | 2010-10-12 | 2010-10-12 | Electronic switch with fire-fighting emergency control function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201830230U true CN201830230U (en) | 2011-05-11 |
Family
ID=43968743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205609117U Expired - Fee Related CN201830230U (en) | 2010-10-12 | 2010-10-12 | Electronic switch with fire-fighting emergency control function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201830230U (en) |
-
2010
- 2010-10-12 CN CN2010205609117U patent/CN201830230U/en not_active Expired - Fee Related
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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. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110511 Termination date: 20141012 |
|
| EXPY | Termination of patent right or utility model |