CN108260261B - Emergency lighting circuit and lamp - Google Patents
Emergency lighting circuit and lamp Download PDFInfo
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- CN108260261B CN108260261B CN201711250950.XA CN201711250950A CN108260261B CN 108260261 B CN108260261 B CN 108260261B CN 201711250950 A CN201711250950 A CN 201711250950A CN 108260261 B CN108260261 B CN 108260261B
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- lamp
- power
- relay
- rechargeable battery
- emergency lighting
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
-
- 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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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention relates to an emergency lighting circuit and a lamp, wherein the circuit comprises a detection and control circuit, a charging circuit and a rechargeable battery; a detection and control circuit for performing at least one of the following actions: when alternating current exists between two input ends of the commercial power, the rechargeable battery is controlled to stop supplying power to the illuminating lamp; the device is also used for controlling the rechargeable battery to supply power for the illuminating lamp according to the impedance change between the two input ends of the commercial power when the two input ends of the commercial power have no alternating current; and the charging circuit is used for charging the rechargeable battery when alternating current exists between the two input ends of the commercial power. The emergency lighting device can control normal lighting and emergency lighting through one switch, is convenient to use, and can manually control whether emergency lighting is needed or not according to needs during power failure, so that limited emergency lighting time can be used when needed.
Description
Technical Field
The invention belongs to the field of emergency lighting lamps, and particularly relates to an emergency lighting circuit and a lamp.
Background
China is a developing country, many local infrastructures are incomplete, power failure conditions often exist, many families need emergency lighting, emergency lighting lamps can be automatically switched to rechargeable batteries for power supply when mains supply is powered off, emergency lighting for a period of time is provided, the rechargeable batteries are cut off for power supply when the mains supply is recovered to be powered on, normal lighting is recovered, the existing emergency lighting lamps and the existing normal lighting lamps are respectively controlled by respective switches and cannot be controlled in a unified mode, and inconvenience is brought to users.
Disclosure of Invention
The invention provides an emergency lighting circuit and a lamp, aiming at the problem that the existing emergency lighting lamp and the existing normal lighting lamp cannot be controlled uniformly.
The technical scheme for solving the technical problems is as follows: an emergency lighting circuit comprising: the device comprises a detection and control circuit, a charging circuit and a rechargeable battery;
the input end of the commercial power is connected with the input end of the detection and control circuit, the output end of the detection and control circuit is connected with the illuminating lamp, and the output end of the charging circuit is connected with the input end of the rechargeable battery;
the detection and control circuit is used for executing at least one of the following actions: when alternating current exists between two input ends of the commercial power, the rechargeable battery is controlled to stop supplying power to the illuminating lamp; the lighting lamp is also used for controlling the rechargeable battery to supply power to the lighting lamp according to impedance change between the two input ends of the commercial power when no alternating current exists between the two input ends of the commercial power;
and the charging circuit is used for charging the rechargeable battery when alternating current exists between the two input ends of the commercial power.
Further, when there is not the alternating current between two input of commercial power, according to the impedance variation between two input of commercial power, control rechargeable battery does the light power supply specifically includes:
when no alternating current exists between the two input ends of the commercial power and the impedance between the two input ends of the commercial power is smaller than a set value, the rechargeable battery is controlled to supply power to the illuminating lamp, so that the illuminating lamp is lightened; and the charging battery is also used for controlling the charging battery to stop supplying power to the illuminating lamp when no alternating current exists between the two input ends of the commercial power and the impedance between the two input ends of the commercial power is larger than a set value, so that the illuminating lamp is extinguished.
Furthermore, the emergency lighting circuit also comprises a voice alarm, wherein the input end of the voice alarm is connected with the output end of the detection and control circuit and is used for carrying out voice alarm when the rechargeable battery supplies power for lighting.
In order to achieve the purpose, the invention further provides a lamp which comprises the emergency lighting circuit and the lighting lamp.
Further, the illumination lamp includes an incandescent lamp or an LED lamp.
Further, the lamp is installed in the light-transmitting shell.
Further, the casing is a ceiling lamp shade. The ceiling lamp shade is provided with the base, the base is provided with the mounting hole, and the ceiling lamp shade can be fixed on a ceiling through the mounting hole and used like a ceiling lamp.
Further, still include bayonet socket or screw mouth that the metal was made, bayonet socket or screw mouth with the casing is connected, and two input of commercial power are connected respectively the contact of bayonet socket or screw mouth makes the casing can be installed on the lamp stand. The light that can light with the alternating current has in the casing, and this light is no matter through the relay, and the silicon controlled rectifier still directly communicates commercial power input both ends with the wire, lights or stops to use the alternating current illumination when not having the alternating current when having the alternating current, and this is prior art, just no longer details.
The invention has the beneficial effects that:
1. the invention can control normal lighting and emergency lighting through one switch, and is convenient and fast to use.
2. Traditional emergency lighting lamp is automatic emergency lighting in the time of power failure, because the capacity of battery is limited, often can't provide emergency lighting after several hours. The emergency lighting system can manually control whether emergency lighting is needed or not according to needs when power is cut off, and limited emergency lighting time can be used when needed.
Drawings
Fig. 1 is a block diagram of an emergency lighting circuit according to an embodiment of the present invention;
fig. 2 is a circuit diagram of an emergency lighting circuit according to an embodiment of the present invention;
fig. 3 is a circuit diagram of another emergency lighting circuit provided by an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a lamp according to an embodiment of the present invention.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
Fig. 1 is a block diagram of an emergency lighting circuit according to an embodiment of the present invention, as shown in fig. 1, including: the device comprises a detection and control circuit, a charging circuit and a rechargeable battery;
the input end of the commercial power is connected with the input end of the detection and control circuit, the output end of the detection and control circuit is connected with the illuminating lamp, and the output end of the charging circuit is connected with the input end of the rechargeable battery;
the detection and control circuit is used for executing at least one of the following actions: when alternating current exists between two input ends of the commercial power, the rechargeable battery is controlled to stop supplying power to the illuminating lamp; the lighting lamp is also used for controlling the rechargeable battery to supply power to the lighting lamp according to impedance change between the two input ends of the commercial power when no alternating current exists between the two input ends of the commercial power;
and the charging circuit is used for charging the rechargeable battery when alternating current exists between the two input ends of the commercial power.
Optionally, in this embodiment, when there is no ac power between the two input ends of the utility power, according to impedance change between the two input ends of the utility power, the rechargeable battery is controlled to supply power to the illumination lamp, which specifically includes:
when no alternating current exists between the two input ends of the commercial power and the impedance between the two input ends of the commercial power is smaller than a set value, the rechargeable battery is controlled to supply power to the illuminating lamp, so that the illuminating lamp is lightened; and the charging battery is also used for controlling the charging battery to stop supplying power to the illuminating lamp when no alternating current exists between the two input ends of the commercial power and the impedance between the two input ends of the commercial power is larger than a set value, so that the illuminating lamp is extinguished.
Specifically, the inventor of the present invention has learned that there are other electrical appliances and transformers on an ac power supply circuit used in a home, and that the resistance between power supply lines measured in a power failure state of a main line of a power supply company is often less than 100 ohms, that the impedance value between power input terminals on a lamp becomes small when a power supply switch of the lamp is turned on and off during a power failure, and that the impedance between two input ports of the lamp changes when the power supply switch of the lamp is turned on and off after the power failure.
In addition, when the switch on the switch wall enables the two ends of the mains supply input to have or not to have alternating current, no matter the two ends of the mains supply input are directly communicated through the relay, the silicon controlled rectifier or the conducting wire to light or close normal illumination through the alternating current, and the switch is the prior art and is not detailed.
The technical solution of the present invention will be explained with reference to fig. 2 and 3.
As shown in fig. 2, a and B are two input terminals of the utility power, the left sides of a and B in the figure are resistors R of the AC power source AC and other electrical appliances on the grid, which are drawn for the convenience of explaining the present invention, and a switch S installed on the wall, these circuits are not essential parts of the present invention, and only play a role in convenience of explaining the working principle, and the relay K1, the relay K2, and the piezoresistor RV1 constitute a detection and control circuit. The voltage-sensitive voltages of the voltage-sensitive resistor RV1 and the voltage-sensitive resistor RV2 are 18 volts, and the rechargeable battery is a lithium battery with 11.1 volts. One end of a piezoresistor RV1 is connected with a power supply end of a mains supply and one end of an electric lamp ER1 respectively, the other end of the piezoresistor RV1 is connected with one end of a coil of a relay K1, the other end of the coil of the relay K1 is connected with the other power supply end of the mains supply and a public end of a relay K1 respectively, a normally open contact of a relay K1 is connected with the other end of the electric lamp ER1, a normally closed contact of a relay K1 is connected with one end of a coil of a relay K2, the other end of the coil of a relay K2 is connected with one end of a rechargeable battery and a public end of a relay K2 respectively, a normally open contact of a relay K2 is connected with one end of an emergency lighting lamp ER2, and the other end of the rechargeable battery is connected.
When normal alternating current is input into the power supply end of the commercial power, the voltage dependent resistor RV1 connected in series between the power supply ends is attracted with the relay K1 in the relay K1, and the alternating current is communicated with the electric lamp ER1, so that the electric lamp ER1 is lightened. After the relay K1 is attracted, no current flows in the relay K2, so that a power supply circuit of the emergency lighting lamp ER2 is disconnected, and the emergency lighting lamp ER2 is in a non-lighting state; when the alternating current externally connected with the power supply end is disconnected by the switch S, the relay K1 is released, and the electric lamp ER1 is extinguished. At this time, although the relay K2 is connected with the power supply terminals, the power supply terminals are open, so the relay K2 cannot be closed, and the emergency lighting lamp ER2 is in a non-bright state; since the resistance between the measuring power supply lines is usually less than 100 ohms in the power failure state of the main line, if the switch S is closed in the power failure state, the resistance R less than 100 ohms is connected between the power supply ends in parallel, so that the relay K2 is equal to the resistance R less than 100 ohms connected to the rechargeable battery in series, the relay K2 is electrified and closed, the rechargeable battery supplies power to the emergency lighting lamp ER2, and the emergency lighting can be realized. At the moment, if the switch S is separated in a power failure state, the power supply end is opened, no current passes through the relay K2, the contact of the relay K2 is separated, and the emergency lighting lamp ER2 is extinguished.
As shown in fig. 3, a and B are two input terminals of the utility power, the left sides of a and B in the figure are resistors R1 of the AC power source AC and other electrical appliances on the grid, which are drawn for the convenience of explaining the present invention, and a switch S mounted on the wall, these circuits are not essential parts of the present invention, and only function for the convenience of explaining the working principle, and the relay K1, the relay K2, the varistor RV1, the varistor RV2, the resistor R2, the resistor R3, the resistor R4, the varistor R5, the capacitor C, the diode D1, and the darlington tube TIP122 constitute a detection circuit. The voltage-sensitive voltages of the voltage-sensitive resistor RV1 and the voltage-sensitive resistor RV2 are 18 volts, and the rechargeable battery is a lithium battery with 11.1 volts.
Under normal power supply, when normal alternating current is input at the power supply ends A and B, the relay K1 is attracted, and the alternating current is communicated with the LED driving circuit, so that the lamps VD1, VD2 and VD3 are lightened. After the relay K1 is attracted, no current flows on the resistor R2, the Darlington tube TIP122 is cut off, at the moment, the relay K2 is not attracted, and the rechargeable battery does not supply power to the electric lamp VD 3. When power supply is normal, after the external alternating current of the power supply ends A and B is disconnected by the switch S, the relay K1 is released, and the lamps VD1 and VD2 are extinguished; at this time, because the power supply terminals a and B are disconnected, no current flows through the resistor R2, the darlington tube TIP122 is turned off, the relay K2 is not attracted, the rechargeable battery does not supply power to the lamp VD3, and the lamp VD3 is also in a non-lighting state. If the switch S is closed in a power failure state, the fact that a resistor R1 smaller than 100 ohms is connected between the power supply ends A and B in parallel is equivalent to that the rechargeable battery provides a trigger signal for the Darlington tube TIP122 through the resistor R1 and the resistors R2 and R3 which are connected between the power supply ends A, B in parallel, the Darlington tube TIP122 is conducted to pull a normally open contact of the relay K2, the rechargeable battery supplies power to the electric lamp VD3 and the voice alarm BY, the electric lamp VD3 is lightened, and the voice alarm BY starts voice alarm. If the switch is separated in the power failure state, the power supply terminals A and B are equivalent to open circuit, no current exists on the resistor R2, the Darlington tube TIP122 is cut off, no current passes on the relay K2, the normally open contact of the relay K2 is separated, and the lamp VD3 is extinguished.
In the present invention, the emergency lighting lamp and the normal lighting lamp can be separated into two groups as shown in fig. 2, or can be the same group, or the emergency lighting lamp is a part of the normal lighting lamp. As shown in fig. 3, if a diode D2 is installed at the output terminal of the LED driving circuit, the voltage of the output of the driving circuit is substantially the same as that of the battery, which is the case of a group of lamps.
In addition, when the switch on the switch wall enables the two ends of the mains supply input to have or not to have alternating current, no matter the alternating current is used for lightening or closing the illuminating lamp by directly communicating the two ends of the mains supply input through the relay, the silicon controlled rectifier or the conducting wire, which is the prior art, the detailed description is omitted.
The battery of the invention can be provided with a battery protection circuit.
In the invention, the detection and control circuit has the same detection function as the control function, the detection function is to detect whether the power input end has alternating current or not, and the change of the impedance is detected under the condition of no alternating current; the control function is to control the on-off of the illumination lamp and the battery according to the detection result, and the logic of the on-off control of the illumination lamp and the battery is as follows: 1. the two power input ends are provided with alternating current, if the illuminating lamp is directly connected with the two power input ends or is connected to the power input ends through the control circuit, the power input ends are both communicated with the illuminating lamp, the illuminating lamp is lightened by the alternating current, and meanwhile, the power supply of the battery is turned off; 2. the power input end has no alternating current, but the impedance of the two ends of the power input end is smaller than a set value, so that the battery is controlled to supply power to light the illuminating lamp; 3. the power supply input end has no alternating current, but the impedance at the two ends of the power supply input end is larger than a set value, so that the power supply of the battery is controlled to be closed. The circuit produced according to the above logic relationship may be produced separately from the lamp bulb and recombined at the user's home, so that a circuit with the logic of the present invention having a battery input may be produced separately without a lamp and also be part of the present invention. Because the power supply circuit is provided with various electric appliances and wires, and is not a pure resistance circuit, the impedance can be measured at the two ends of the power supply circuit in a power failure state.
The invention also provides a lamp which comprises the emergency lighting circuit and a lighting lamp.
Specifically, the illuminating lamp comprises an incandescent lamp or an LED lamp, as shown in fig. 4, the lamp 1 is installed in a transparent casing 2, the casing 2 can be a ceiling lamp shade or other shades of various shapes, the lamp is further provided with a bayonet or a screw port 3 made of metal, the bayonet or the screw port 3 is connected with the casing 2, and two input ends of a mains supply are respectively connected with contacts of the bayonet or the screw port 3, so that the casing 2 can be installed on a lamp holder and used like a bulb.
The lamp has the following effects after being installed: when the power supply is normal, a switch on the wall is turned on, the lamp is illuminated by alternating current, the switch on the wall is turned off, and the lamp is turned off; after the power supply company has a power failure, a switch on the wall is turned on, the battery for the lamp provides emergency illumination, the switch on the wall is turned off, and the lamp is turned off.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. An emergency lighting circuit, comprising: the device comprises a detection and control circuit, a charging circuit and a rechargeable battery;
the input end of the commercial power is connected with the input end of the detection and control circuit, the output end of the detection and control circuit is connected with the illuminating lamp, and the output end of the charging circuit is connected with the input end of the rechargeable battery;
the detection and control circuit is used for executing at least one of the following actions: when alternating current exists between two input ends of the commercial power, the rechargeable battery is controlled to stop supplying power to the illuminating lamp; the lighting lamp is also used for controlling the rechargeable battery to supply power to the lighting lamp according to impedance change between the two input ends of the commercial power when no alternating current exists between the two input ends of the commercial power;
the charging circuit is used for charging the rechargeable battery when alternating current exists between two input ends of the commercial power;
the illuminating lamp comprises an electric lamp ER1 and an emergency illuminating lamp ER2, a relay K1, a relay K2 and a piezoresistor RV1 which form the detection and control circuit, one end of the piezoresistor RV1 is respectively connected with a power supply end of a mains supply and one end of the electric lamp ER1, the other end of the piezoresistor RV1 is connected with one end of a coil of the relay K1, the other end of the coil of the relay K1 is respectively connected with the other power supply end of the mains supply, and the common end of the relay K1 is connected, the normally open contact of the relay K1 is connected with the other end of the electric lamp ER1, the normally closed contact of the relay K1 is connected with one end of a coil of the relay K2, the other end of the coil of the relay K2 is respectively connected with one end of a rechargeable battery and the common end of the relay K2, the normally open contact of the relay K2 is connected with one end of the emergency lighting electric lamp ER2, and the other end of the rechargeable battery is connected with the other end of the emergency lighting electric lamp ER 2.
2. The emergency lighting circuit according to claim 1, wherein when there is no ac power between the two input terminals of the utility power, the rechargeable battery is controlled to supply power to the lighting lamp according to the impedance change between the two input terminals of the utility power, and specifically includes:
when no alternating current exists between the two input ends of the commercial power and the impedance between the two input ends of the commercial power is smaller than a set value, the rechargeable battery is controlled to supply power to the illuminating lamp, so that the illuminating lamp is lightened; and the charging battery is also used for controlling the charging battery to stop supplying power to the illuminating lamp when no alternating current exists between the two input ends of the commercial power and the impedance between the two input ends of the commercial power is larger than a set value, so that the illuminating lamp is extinguished.
3. An emergency lighting circuit according to claim 1 or 2, further comprising a voice alarm, an input of which is connected to an output of the detection and control circuit, for making a voice alarm when the rechargeable battery is powered for illumination.
4. A luminaire comprising an emergency lighting circuit according to claim 1 or 2 and a lighting lamp.
5. The light fixture of claim 4 wherein the illumination lamp comprises an incandescent lamp or an LED lamp.
6. A light fixture as recited in claim 4, wherein the light fixture is mounted within a light-transmissive housing.
7. A light fixture as recited in claim 6, wherein the housing is a ceiling light cover.
8. A lamp as claimed in claim 6, further comprising a bayonet or a screw made of metal, wherein the bayonet or the screw is connected to the housing, and the two input terminals of the mains supply are respectively connected to the contacts of the bayonet or the screw, so that the housing can be mounted on the lamp holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711250950.XA CN108260261B (en) | 2017-12-01 | 2017-12-01 | Emergency lighting circuit and lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711250950.XA CN108260261B (en) | 2017-12-01 | 2017-12-01 | Emergency lighting circuit and lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108260261A CN108260261A (en) | 2018-07-06 |
| CN108260261B true CN108260261B (en) | 2020-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711250950.XA Active CN108260261B (en) | 2017-12-01 | 2017-12-01 | Emergency lighting circuit and lamp |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201983169U (en) * | 2011-03-29 | 2011-09-21 | 深圳市澳磁电源科技有限公司 | LED (light-emitting diode) fluorescent tube with emergency lighting function |
| CN102664451A (en) * | 2012-05-04 | 2012-09-12 | 朱林弟 | Power failure detection circuit and detection method thereof |
| JP5297119B2 (en) * | 2008-08-26 | 2013-09-25 | パナソニック株式会社 | Lighting lighting device, lighting device, and lighting fixture |
| CN104582127A (en) * | 2014-08-26 | 2015-04-29 | 江苏芯光能源管理有限公司 | Emergency lighting system with end remaining function |
| CN105323923A (en) * | 2015-10-27 | 2016-02-10 | 浙江生辉照明有限公司 | Light emitting diode (LED) intelligent control circuit and LED lighting device |
-
2017
- 2017-12-01 CN CN201711250950.XA patent/CN108260261B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5297119B2 (en) * | 2008-08-26 | 2013-09-25 | パナソニック株式会社 | Lighting lighting device, lighting device, and lighting fixture |
| CN201983169U (en) * | 2011-03-29 | 2011-09-21 | 深圳市澳磁电源科技有限公司 | LED (light-emitting diode) fluorescent tube with emergency lighting function |
| CN102664451A (en) * | 2012-05-04 | 2012-09-12 | 朱林弟 | Power failure detection circuit and detection method thereof |
| CN104582127A (en) * | 2014-08-26 | 2015-04-29 | 江苏芯光能源管理有限公司 | Emergency lighting system with end remaining function |
| CN105323923A (en) * | 2015-10-27 | 2016-02-10 | 浙江生辉照明有限公司 | Light emitting diode (LED) intelligent control circuit and LED lighting device |
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| CN108260261A (en) | 2018-07-06 |
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Effective date of registration: 20230420 Address after: 015000 No. 80, group 7, Nongfeng village, Bayi Township, Linhe District, Bayannur City, Inner Mongolia Autonomous Region Patentee after: Inner Mongolia chibang Power Engineering Co.,Ltd. Address before: 570209 New World Garden L6-6A, Xinbu Island, Meilan District, Haikou City, Hainan Province Patentee before: Li Feng |