CN202759427U - Two-wire electronic switch with fire fighting function - Google Patents
Two-wire electronic switch with fire fighting function Download PDFInfo
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- CN202759427U CN202759427U CN 201220290623 CN201220290623U CN202759427U CN 202759427 U CN202759427 U CN 202759427U CN 201220290623 CN201220290623 CN 201220290623 CN 201220290623 U CN201220290623 U CN 201220290623U CN 202759427 U CN202759427 U CN 202759427U
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Abstract
The utility model relates to a two-wire electronic switch with fire fighting function, comprising a power supply live wire L end, a power supply neutral wire N end, a fire fighting control terminal X, a main switch loop circuit, a VCC power supply circuit and a control and triggering circuit. After the VCC power supply circuit and the control and triggering circuit are connected in series, one end is connected with one input end of the main switch loop circuit and the other end is connected with the power supply live wire L end and the other input end of the main switch loop circuit; and the output end of the main switch loop circuit is connected with the power supply neutral wire N end through a load. The two-wire electronic switch with fire fighting function is characterized by further comprising a fire fighting loop circuit, of which the input end is connected with the fire fighting terminal X and the output end is connected with the power supply neutral wire N end through the load. The two-wire electronic switch with fire fighting function has the advantages that the fire-fighting emergence function of the switch can be achieved as long as there is power supplied by the fire-fighting control terminal X when there is no neutral wire connected and the switch is not connected to the mains power supply, free conversion can be carried out between fire fighting and the mains power supply, and the fire-fighting control terminal completely meets the requirements of electrical design codes and fire-fighting standards for building.
Description
Technical field
The utility model relates to a kind of electronic switching technology field, is a kind of two-wire electronic switch with fire-fighting function specifically.
Background technology
There is regulation in China construction sector, the used illumination control electronic switch of skyscraper corridor must have one to force the conducting control end, total the control end of all switches connects together and by the control of fireman's switch, be exactly the special line end fire-fighting of this on electronic switch control end; When the abnormal conditions such as breaking out of fire and earthquake, Zong fireman's switch is connected, no matter all corridor lightings are original what state, are all lighted by plugged by force, to make things convenient for evacuating personnel.
In addition, also has a kind of application with induction and the sound control electronic switch of fire-fighting control end, such as the application in the corridor, hotel.Passing more time period be 19:00 the guest evening opens the fire-fighting control switch in-22:00, allow corridor lamp Chang Liang, to make things convenient for the guest; Served as after 22, disconnected fire-fighting control, entered induction and acoustic control state, to save electric energy.In addition, when not having civil power, can constrained feed to satisfy needs normal power supply under the fire-fighting emergent state.The electronic switch that enters without zero line is two-wire electronic switch, not only can save a zero line material when wiring, and greatly facilitate installation and the wiring of switch.Up to the present, owing to technical reason, existing two-wire electronic switch with fire-fighting function must have in the situation of civil power on the market, and switch just can play normal bright effect; In case civil power has not had, even having electricity to bring switch, fire line still can not work.In case if breaking out of fire, civil power is cut off by force, all switches in fire fighting passageway all can't be worked so, and that consequence is hardly imaginable.At present, in without zero line access and the situation of switch without civil power, even fire line has electricity to bring, switch can not be realized the fire-fighting emergent function.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art and a kind of two-wire electronic switch with fire-fighting function is provided, in without zero line access and the situation of switch without civil power, as long as fire-fighting control end X has electricity to bring, just can realize the fire-fighting emergent function, fire-fighting and civil power can freely be changed, and the fire-fighting control end meets architecture electric design specification and fire protection criteria requirement fully.
For solving the problems of the technologies described above, the utility model is realized by the following technical solutions: a kind of two-wire electronic switch with fire-fighting function, comprise power firestreak L end, zero-power line N end, fire-fighting control end X, switch main loop circuit, VCC power circuit and control and circuits for triggering, wherein said VCC power circuit is with after control and circuits for triggering are connected in series, one input of one termination switch main loop circuit, the other end connect respectively another input of power firestreak L end and switch main loop circuit; The output of described switch main loop circuit connects zero-power line N end by load; Characterized by further comprising the fire-fighting loop circuit, the input termination fire-fighting control end X of described fire-fighting loop circuit, the output of fire-fighting loop circuit connects zero-power line N end by load.
Described fire-fighting loop circuit comprises rectification filtering unit and the single silicon control unit that connects successively.
Described rectification filtering unit comprises rectifier bridge and electrochemical capacitor, and described single silicon control unit comprises one-way SCR, the second diode, the 3rd diode, the first resistance and the second resistance; Described the first resistance is with in parallel with electrochemical capacitor again after the second resistance is connected; The input 1 of described rectifier bridge connects the output of switch main loop circuit and connects zero-power line N end by load, the input 3 of rectifier bridge meets fire-fighting control end X, the output 2 of rectifier bridge connects respectively the positive pole of electrochemical capacitor and the positive pole of the second diode, and the output 4 of rectifier bridge connects respectively the negative pole of electrochemical capacitor and the negative pole of the 3rd diode; The anode of one-way SCR connects the negative pole of the second diode, and negative electrode connects the positive pole of the 3rd diode, and the control utmost point connects the dividing point of the series connection of the first resistance and the second resistance.
The remarkable advantage that the utility model compared with prior art has is: can reach in the situation of switch without civil power without the zero line access, as long as fire-fighting control end X has electricity to bring, switch just can be realized the fire-fighting emergent function, fire-fighting and civil power can freely be changed, and the fire-fighting control end meets architecture electric design specification and fire protection criteria requirement fully.For example, when fire alarm or emergency episode occur, be that the fire-fighting live wire is connected with fire-fighting control end X, even civil power is cut off by force, switch still can be worked, and makes all loads in fire fighting passageway be in normal bright state.
Description of drawings
Fig. 1 is theory diagram of the present utility model;
Fig. 2 is circuit theory diagrams of the present utility model.
Embodiment
Understanding for the ease of those skilled in the art is further described in detail the utility model below in conjunction with drawings and Examples.
As shown in Figure 1, a kind of two-wire electronic switch with fire-fighting function, comprise power firestreak L end, zero-power line N end, fire-fighting control end X, switch main loop circuit, VCC power circuit and control and circuits for triggering, wherein said VCC power circuit is with after control and circuits for triggering are connected in series, one input of one termination switch main loop circuit, the other end connect respectively another input of power firestreak L end and switch main loop circuit; The output of described switch main loop circuit connects zero-power line N end by load; Characteristics of the present utility model are also to comprise the fire-fighting loop circuit, the input termination fire-fighting control end X of described fire-fighting loop circuit, and the output of fire-fighting loop circuit connects zero-power line N end by load.During work, the switch main loop circuit is used for the break-make of control electronic switch major loop, and the VCC power circuit provides its normal working voltage for control and circuits for triggering.In the fire-fighting emergent situation, fire-fighting control end X connects load by the fire-fighting loop circuit, realizes the normal bright illumination of fire-fighting emergent.In this programme, described switch main loop circuit, VCC power circuit, control and circuits for triggering can adopt simulation electronic control circuit or digital control circuit or single chip machine controlling circuit, and ripe circuit gets final product in the employing prior art.
In the present embodiment, described fire-fighting loop circuit comprises rectification filtering unit and the single silicon control unit that connects successively.
In the present embodiment, as shown in Figure 2, described rectification filtering unit comprises rectifier bridge D1 and electrochemical capacitor C1, and described single silicon control unit comprises unidirectional controllable silicon S CR1, the second diode D2, the 3rd diode D3, the first resistance R 1 and the second resistance R 2; Described the first resistance R 1 is with in parallel with electrochemical capacitor C1 again after the second resistance R 2 is connected; The input 1 of described rectifier bridge D1 connects the output of switch main loop circuit and connects zero-power line N end by load, the input 3 of rectifier bridge D1 meets fire-fighting control end X, the output 2 of rectifier bridge D1 connects respectively the positive pole of electrochemical capacitor C1 and the positive pole of the second diode D2, and the output 4 of rectifier bridge D1 connects respectively the negative pole of electrochemical capacitor C1 and the negative pole of the 3rd diode D3; The anode of unidirectional controllable silicon S CR1 connects the negative pole of the second diode D2, and negative electrode connects the positive pole of the 3rd diode D3, and the control utmost point connects the dividing point of the series connection of the first resistance R 1 and the second resistance R 2.Rectifier bridge D1 also can change four rectifier diodes into as required.
Its operation principle is: when fire-fighting control end X connects fire-fighting power supply, through rectifier bridge D1 rectification and electrochemical capacitor C1 filtering, after the first resistance R 1 and the second resistance R 2 dividing potential drops, obtain a branch pressure voltage again, this branch pressure voltage makes the complete conducting of unidirectional controllable silicon S CR1, form electric power loop, loaded work piece by rectifier bridge D1 and load.Have or not civil power this moment is that AC power live wire L has or not electricity, does not all affect the normal operation of fire-fighting circuit.
Above-described embodiment only is better execution mode of the present utility model, and in addition, the utility model can also have other implementations.That is to say that under the prerequisite that does not break away from the utility model design, any apparent replacement all should fall within the protection range of the present utility model.
Claims (3)
1. two-wire electronic switch with fire-fighting function, comprise power firestreak L end, zero-power line N end, fire-fighting control end X, switch main loop circuit, VCC power circuit and control and circuits for triggering, wherein said VCC power circuit is with after control and circuits for triggering are connected in series, one input of one termination switch main loop circuit, the other end connect respectively another input of power firestreak L end and switch main loop circuit; The output of described switch main loop circuit connects zero-power line N end by load; Characterized by further comprising the fire-fighting loop circuit, the input termination fire-fighting control end X of described fire-fighting loop circuit, the output of fire-fighting loop circuit connects zero-power line N end by load.
2. the two-wire electronic switch with fire-fighting function according to claim 1 is characterized in that described fire-fighting loop circuit comprises rectification filtering unit and the single silicon control unit that connects successively.
3. the two-wire electronic switch with fire-fighting function according to claim 2 is characterized in that described rectification filtering unit comprises rectifier bridge (D1) and electrochemical capacitor (C1); Described single silicon control unit comprises one-way SCR (SCR1), the second diode (D2), the 3rd diode (D3), the first resistance (R1) and the second resistance (R2); Described the first resistance (R1) is with in parallel with electrochemical capacitor (C1) again after the second resistance (R2) is connected; The input 1 of described rectifier bridge (D1) connects the output of switch main loop circuit and connects zero-power line N end by load, the input 3 of rectifier bridge (D1) meets fire-fighting control end X, the output 2 of rectifier bridge (D1) connects respectively the positive pole of electrochemical capacitor (C1) and the positive pole of the second diode (D2), and the output 4 of rectifier bridge (D1) connects respectively the negative pole of electrochemical capacitor (C1) and the negative pole of the 3rd diode (D3); The anode of one-way SCR (SCR1) connects the negative pole of the second diode (D2), and negative electrode connects the positive pole of the 3rd diode (D3), and the control utmost point connects the dividing point of the series connection of the first resistance (R1) and the second resistance (R2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220290623 CN202759427U (en) | 2012-06-20 | 2012-06-20 | Two-wire electronic switch with fire fighting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220290623 CN202759427U (en) | 2012-06-20 | 2012-06-20 | Two-wire electronic switch with fire fighting function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202759427U true CN202759427U (en) | 2013-02-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220290623 Expired - Lifetime CN202759427U (en) | 2012-06-20 | 2012-06-20 | Two-wire electronic switch with fire fighting function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202759427U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849927A (en) * | 2017-02-18 | 2017-06-13 | 王立新 | Two-wire system electronic switch and fire-fighting illumination control circuit |
| CN114423131A (en) * | 2022-01-28 | 2022-04-29 | 广东浩博特科技有限公司 | Electronic switch without fire-fighting live wire and with fire-fighting centralized control function and system |
-
2012
- 2012-06-20 CN CN 201220290623 patent/CN202759427U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849927A (en) * | 2017-02-18 | 2017-06-13 | 王立新 | Two-wire system electronic switch and fire-fighting illumination control circuit |
| CN106849927B (en) * | 2017-02-18 | 2024-02-20 | 广东誉顺电器有限公司 | Two-wire electronic switch and fire-fighting lighting control circuit |
| CN114423131A (en) * | 2022-01-28 | 2022-04-29 | 广东浩博特科技有限公司 | Electronic switch without fire-fighting live wire and with fire-fighting centralized control function and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130227 |
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| CX01 | Expiry of patent term |