CN104426237A - Emergency circuit and lamp - Google Patents
Emergency circuit and lamp Download PDFInfo
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- CN104426237A CN104426237A CN201310408167.7A CN201310408167A CN104426237A CN 104426237 A CN104426237 A CN 104426237A CN 201310408167 A CN201310408167 A CN 201310408167A CN 104426237 A CN104426237 A CN 104426237A
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Abstract
The invention discloses an emergency circuit and a lamp. The emergency circuit comprises a power supply module and a control module, wherein the power supply module is used for supplying power when power is cut off; the input end of the power supply module is connected with a direct-current power supply; the control module is used for controlling the power supply module and connecting a load when the power is cut off, and comprises a relay; the relay comprises an electrifying coil and a switch which is controlled by the electrifying coil; one end of the electrifying coil is connected with the direct-current power supply; the other end of the electrifying coil is grounded; the first input end of the switch is connected with the direct-current power supply; the second input end of the switch is connected with the output end of the power supply module; the output end of the switch is connected with the load; in a normal state, the electrifying coil is electrified to control the first input end of the switch to be connected with the output end of the direct-current power supply, and the direct-current power supply charges the power supply module and supplies power to a next circuit; when the power is cut off, the electrifying coil is powered off to control the second input end of the switch to be connected with the output end of the power supply module, and the power supply module continuously supplies power to the next circuit. The emergency circuit is simple and reliable to operate and low in cost.
Description
Technical field
The present invention relates to circuit, particularly relate to emergency circuit and light fixture.
Background technology
In daily life, when running into power-off, often need to use emergency light.But, the emergency light of prior art needs manual operation to start, and operates like this and just extremely bothers, and even can delay important thing because of power-off for the moment, this just may cause heavy losses to work and life, and the cost of manufacture of emergency light is also very high.
Summary of the invention
The technical problem to be solved in the present invention is the deficiency overcoming the existence of above-mentioned prior art, and proposes a kind of emergency circuit and light fixture, and it is inconvenient that the present invention can solve lamp operation of the prior art, the problem that cost is high.
For solving the problems of the technologies described above, the present invention proposes a kind of emergency circuit, and it comprises: supply module, and it is for powering when power-off, and it comprises input and output, and the input of supply module connects DC power supply; Control module, it is for controlling supply module and load connection during power-off, it comprises relay, relay comprises hot-wire coil and is controlled by the switch of hot-wire coil, and switch comprises first input end, the second input and output, and one end of hot-wire coil connects DC power supply, the other end ground connection of hot-wire coil, the first input end of switch connects DC power supply, and the second input of switch connects the output of supply module, and the output of switch connects load; Wherein, in normal state, the hot-wire coil energising first input end of control switch and output are connected, and DC power supply is charged to supply module and to subordinate's circuit supply; When power is off, the second input of hot-wire coil power-cutting off control switch and output are connected, and supply module continues to subordinate's circuit supply.
Preferably, supply module comprises: charhing unit and storage battery; Storage battery is used for powering when power-off, and charhing unit is used for charging a battery; The input of charhing unit connects the input of supply module, and the output of charhing unit connects the forward end of storage battery, and the forward end of storage battery connects the output of supply module, the backward end ground connection of storage battery.
Preferably, supply module also comprises indicating member, it is for showing the electricity of storage battery, it comprises stabilized power source, comparator, the first resistance and LED display lamp, stabilized power source connects the in-phase end of comparator, the out-phase end of comparator connects the forward end of storage battery, and the output of comparator connects ground connection after the first resistance and LED display lamp successively.
Preferably, stabilized power source comprises the first diode, the second resistance, the 3rd resistance, the 4th resistance and voltage-stabiliser tube, second resistance, the first diode are connected between the in-phase end of DC power supply and comparator successively, 3rd resistance and the 4th resistance are connected between the in-phase end of comparator and ground successively, the base stage of voltage-stabiliser tube connects the junction of the 3rd resistance and the 4th resistance, the negative electrode of voltage-stabiliser tube connects the in-phase end of comparator, the plus earth of voltage-stabiliser tube.
Preferably, the model of source of stable pressure is TL431.
Preferably, control module also comprises voltage stabilizing didoe, and the negative electrode of voltage stabilizing didoe connects DC power supply, the plus earth of voltage stabilizing didoe.
The present invention also proposes a kind of light fixture, and it comprises emergency circuit as above.
Compared with prior art, the present invention has following beneficial effect: emergency circuit of the present invention and light fixture, adopt control module and supply module, it can be made when power-off, by supply module to subordinate's circuit automatic power, manually operated trouble can be eliminated, operate more convenient, and can quick-recovery illumination soon, avoid because the loss that causes of power-off for the moment, cost of manufacture is also low.
Accompanying drawing explanation
Fig. 1 is the electrical block diagram of emergency circuit.
Wherein, description of reference numerals is as follows: supply module 1 charhing unit 11 storage battery 12 indicating member 13 stabilized power source 131 first diode D1 second resistance R2 the 3rd resistance R3 the 4th resistance R4 voltage-stabiliser tube T1 comparator U1 first resistance R1 LED display lamp L1 control module 2 relay power coil K K switch 1 voltage stabilizing didoe D2.
Embodiment
In order to further illustrate principle of the present invention and structure, existing by reference to the accompanying drawings to a preferred embodiment of the present invention will be described in detail.
emergency circuit embodiment
Refer to Fig. 1, the present invention proposes a kind of emergency circuit, and it comprises: supply module 1 and control module 2.Supply module 1 is for powering when power-off, and control module 2 is for controlling supply module 1 during power-off and load is connected.Supply module 1 comprises input and output, and the input of supply module 1 connects DC power supply.Control module 2 comprises: first input end, the second input and output, and the first input end of control module 2 connects DC power supply, and the second input of control module 2 connects the output of supply module 1, and the output of control module 2 connects load.
Supply module 1 comprises: charhing unit 11, storage battery 12 and indicating member 13.Storage battery 12 is for powering when power-off, and charhing unit 11 charges for giving described storage battery 12, and indicating member 13 is for showing the electricity of storage battery 12.The input of charhing unit 11 connects the input of supply module 1, and the output of charhing unit 11 connects the forward end of storage battery 12, and the forward end of storage battery 12 connects the output of supply module 1, the backward end ground connection of storage battery 12.
Indicating member 13 bag stabilized power source 131, comparator U1, the first resistance R1 and LED display lamp L1.Stabilized power source 131 connects the in-phase end of comparator U1.The out-phase end of comparator U1 connects the forward end of storage battery 12, and the output of comparator U1 connects ground connection after the first resistance R1 and LED display lamp L1 successively.
In the present embodiment, stabilized power source 131 comprises the first diode D1, the second resistance R2, the 3rd resistance R3, the 4th resistance R4 and voltage-stabiliser tube T1.Second resistance R2, the first diode D1 are connected between the in-phase end of described DC power supply and described comparator U1 successively.Between the in-phase end that 3rd resistance R3 and the 4th resistance R4 is connected on comparator U1 successively and ground, the base stage of voltage-stabiliser tube T1 connects the junction of the 3rd resistance R3 and the 4th resistance R4, the negative electrode of voltage-stabiliser tube T1 connects the in-phase end of comparator U1, the plus earth of voltage-stabiliser tube T1.Such DC power supply is through the second resistance R2 step-down, and the first diode D1 rectification, after the 3rd resistance R3, the 4th resistance R4 and voltage-stabiliser tube T1 voltage stabilizing, can provide constant reference voltage to the in-phase end of described comparator U1.In other embodiments, also this function can be realized with constant-current source.But use the mode of the present embodiment, can DC power supply be made full use of, and use constant-current source, then more easily realize.In the present embodiment, the model of voltage-stabiliser tube T1 is TL431.
Control module 2 comprises relay.Relay comprises hot-wire coil K, is controlled by the K switch 1 of hot-wire coil K and voltage stabilizing didoe D2.K switch 1 comprises first input end, the second input and output.The first input end of one end link control module 2 of hot-wire coil K, the other end ground connection of hot-wire coil K, the first input end of the first input end link control module 2 of K switch 1, second input of the second input link control module 2 of K switch 1, the output of the output link control module 2 of K switch 1.The first input end of the negative electrode link control module 2 of voltage stabilizing didoe D2, the plus earth of voltage stabilizing didoe D2.Wherein, in normal state, first input end and the output of hot-wire coil K energising control K switch 1 are connected, when power is off, second input and the output of hot-wire coil K power-cutting off control switch K1 are connected, thus supply module 2 can be continued to subordinate's circuit supply.
Operation principle of the present invention is described in detail below in conjunction with Fig. 1.
Input voltage vin is direct current, obtains by the conversion of 220V civil power.When civil power 220V has an electricity, Vin is charged for storage battery 12 by charhing unit 11, hot-wire coil K energising simultaneously, K switch 1 adhesive, the first input end 1 of K switch 1 and the contact chip conducting of output 3, circuit provides DC power supply, termination drive circuit after OUT for successive load.
When civil power power-off, Vin is no-voltage now, and hot-wire coil K dead electricity is recovered, now the second input 2 of K switch 1 and the contact chip conducting of output 3, and storage battery 12 provides DC power supply for rear class drives.LED display lamp L1 is as the charging indicator light of storage battery 12.By direct current Vin by the second resistance R2 step-down, after the voltage stabilizing circuit voltage stabilizing of the 3rd resistance R3, the 4th resistance R4 and voltage-stabiliser tube T1 composition, provide benchmark voltage to the in-phase end of comparator U1.When the voltage of storage battery 12 is low, comparator exports high level, and the lamp of LED display lamp L1 is bright, reminds staff change battery or charge to storage battery 12; When the voltage of storage battery 12 is higher than reference voltage, comparator output low level, the lamp of LED display lamp L1 does not work.
Emergency light circuit of the present invention, can in the event of a power failure, and automatic power eliminates manually-operated trouble, and timely powered lighting, prevent because the loss that causes of power-off for the moment, and cost of manufacture is also very low.
light fixture embodiment
The present invention also proposes a kind of light fixture, and it comprises emergency circuit as above.
Compared with prior art, the present invention has following beneficial effect: emergency circuit of the present invention and light fixture, adopt control module and supply module, it can be made when power-off, by supply module to subordinate's circuit automatic power, manually operated trouble can be eliminated, operate more convenient, and can quick-recovery illumination soon, avoid because the loss that causes of power-off for the moment, cost of manufacture is also lower.
These are only better possible embodiments of the present invention, not limit the scope of the invention, all utilizations specification of the present invention and the change of the equivalent structure done by accompanying drawing content, be all included in protection scope of the present invention.
Claims (7)
1. an emergency circuit, is characterized in that, it comprises:
Supply module, it is for powering when power-off, and it comprises input and output, and the input of described supply module connects DC power supply;
Control module, it is for controlling described supply module and load connection during power-off, it comprises relay, described relay comprises hot-wire coil and is controlled by the switch of described hot-wire coil, described switch comprises first input end, the second input and output, one end of described hot-wire coil connects DC power supply, the other end ground connection of described hot-wire coil, the first input end of described switch connects described DC power supply, second input of described switch connects the output of described supply module, and the output of described switch connects described load;
Wherein, in normal state, the first input end that the energising of described hot-wire coil controls described switch is connected with output, and described DC power supply is charged to described supply module and to subordinate's circuit supply; When power is off, described hot-wire coil power-off controls the second input of described switch and output is connected, and described supply module continues to described subordinate circuit supply.
2. emergency circuit as claimed in claim 1, it is characterized in that, described supply module comprises: charhing unit and storage battery; Described storage battery is used for powering when power-off, and described charhing unit is used for described charge in batteries; The input of described charhing unit connects the input of described supply module, and the output of described charhing unit connects the forward end of described storage battery, and the forward end of described storage battery connects the output of described supply module, the backward end ground connection of described storage battery.
3. emergency circuit as claimed in claim 2, it is characterized in that, described supply module also comprises indicating member, it is for showing the electricity of described storage battery, it comprises stabilized power source, comparator, the first resistance and LED display lamp, described stabilized power source connects the in-phase end of described comparator, and the out-phase end of described comparator connects the forward end of described storage battery, and the output of described comparator connects ground connection after described first resistance and LED display lamp successively.
4. emergency circuit as claimed in claim 3, it is characterized in that, described stabilized power source comprises the first diode, second resistance, 3rd resistance, 4th resistance and voltage-stabiliser tube, described second resistance, first diode is connected between the in-phase end of described DC power supply and described comparator successively, between the in-phase end that described 3rd resistance and the 4th resistance are connected on described comparator successively and ground, the base stage of described voltage-stabiliser tube connects the junction of described 3rd resistance and the 4th resistance, the negative electrode of described voltage-stabiliser tube connects the in-phase end of described comparator, the plus earth of described voltage-stabiliser tube.
5. emergency circuit as claimed in claim 4, it is characterized in that, the model of described source of stable pressure is TL431.
6. emergency circuit as claimed in claim 4, it is characterized in that, described control module also comprises voltage stabilizing didoe, and the negative electrode of described voltage stabilizing didoe connects described DC power supply, the plus earth of described voltage stabilizing didoe.
7. a light fixture, is characterized in that, it comprises the emergency circuit as described in claim 1 to 6 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310408167.7A CN104426237A (en) | 2013-09-09 | 2013-09-09 | Emergency circuit and lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310408167.7A CN104426237A (en) | 2013-09-09 | 2013-09-09 | Emergency circuit and lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104426237A true CN104426237A (en) | 2015-03-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310408167.7A Pending CN104426237A (en) | 2013-09-09 | 2013-09-09 | Emergency circuit and lamp |
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| CN (1) | CN104426237A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200969385Y (en) * | 2006-10-23 | 2007-10-31 | 恩平市邦华电子有限公司 | Electric quantity indicator for battery |
| CN101170262A (en) * | 2006-10-25 | 2008-04-30 | 盛群半导体股份有限公司 | DC power switching device |
| CN201726195U (en) * | 2010-06-30 | 2011-01-26 | 深圳市深泰明科技有限公司 | Intelligent converting emergency supply |
| CN102570582A (en) * | 2010-12-10 | 2012-07-11 | 深圳市凯旺电子有限公司 | Multi-purpose intelligent power module |
-
2013
- 2013-09-09 CN CN201310408167.7A patent/CN104426237A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200969385Y (en) * | 2006-10-23 | 2007-10-31 | 恩平市邦华电子有限公司 | Electric quantity indicator for battery |
| CN101170262A (en) * | 2006-10-25 | 2008-04-30 | 盛群半导体股份有限公司 | DC power switching device |
| CN201726195U (en) * | 2010-06-30 | 2011-01-26 | 深圳市深泰明科技有限公司 | Intelligent converting emergency supply |
| CN102570582A (en) * | 2010-12-10 | 2012-07-11 | 深圳市凯旺电子有限公司 | Multi-purpose intelligent power module |
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Application publication date: 20150318 |