CN111194125A - Lighting circuit compatible with high-power emergency driving and having emergency dimming function - Google Patents
Lighting circuit compatible with high-power emergency driving and having emergency dimming function Download PDFInfo
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- CN111194125A CN111194125A CN202010096114.6A CN202010096114A CN111194125A CN 111194125 A CN111194125 A CN 111194125A CN 202010096114 A CN202010096114 A CN 202010096114A CN 111194125 A CN111194125 A CN 111194125A
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Abstract
The invention discloses a lighting circuit with an emergency dimming function and compatible with high-power emergency driving, which comprises an emergency power supply line, an emergency driving module, a common lighting power supply line and a dimming driving module, wherein the emergency driving module comprises an emergency driving output module with a dimming signal output unit and an isolation module; the common lighting power supply circuit is connected with the dimming driving module, and the dimming driving module is connected with the lighting load; the emergency power supply line is connected with the emergency driving output module, the emergency driving output module is connected with the dimming driving module, and the isolation module is used for isolating the emergency driving module from the common lighting power supply line; the dimming signal output unit is used for sending a dimming instruction to the dimming signal unit, and the dimming signal unit performs dimming on the lighting load according to the dimming instruction. The invention utilizes the dimming interface on the common drive, only uses the emergency drive output module to send a low-power dimming instruction to the emergency drive output module, and can dim light in an emergency lighting state.
Description
Technical Field
The invention relates to the field of emergency lighting, in particular to a lighting circuit which is compatible with high-power emergency driving and has an emergency dimming function.
Background
Most of emergency drivers in the market at present are driven to directly connect the output of the driver with a load (share one load with a common lighting driver), common drivers cannot be directly connected with an alternating current input end, and if the output of the driver needs to be connected with the alternating current input end of the common driver, batteries are quite large, the cost cannot be met, and the emergency drivers cannot be basically accepted. The emergency driving of the special emergency lamp is required, but the emergency driving can only be used for emergency and cannot be used for illumination at ordinary times, so that the defect that the installation is very inconvenient, an interface needs to be added for transforming the existing lamp, the transformation is difficult, and great inconvenience is brought to a user.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a lighting circuit which is compatible with high-power emergency driving and has an emergency dimming function, the lighting circuit can realize the dimming function in an emergency lighting state, and the technical scheme is as follows:
the invention provides a lighting circuit with an emergency dimming function and compatible with high-power emergency driving, which comprises an emergency power supply line, an emergency driving module, a common lighting power supply line and a dimming driving module, wherein the emergency driving module comprises an emergency driving output module and an isolation module;
the output end of the common lighting power supply circuit is connected with the input end of the dimming driving module through the isolation module, and the output end of the dimming driving module is connected with a lighting load;
the output end of the emergency power supply line is connected with the input end of an emergency driving output module, the output end of the emergency driving output module is connected with the input end of the dimming driving module, and the isolation module is used for isolating the emergency driving module from a common lighting power supply line;
the dimming signal output unit is used for sending a dimming instruction to the dimming signal unit, and the dimming signal unit is used for dimming the lighting load according to the dimming instruction.
Further, the dimming signal unit is a dimmer dimming interface.
Further, the lighting load is a dimmable lighting load.
Further, the isolation module is a relay.
Further, the isolation module is a rectifier bridge circuit.
Further, emergent power supply line includes emergent circuit live wire, ordinary illumination power supply line includes the lighting lines live wire, emergent power supply line and ordinary illumination power supply line share a zero line.
Furthermore, the lighting circuit compatible with high-power emergency driving and having the emergency dimming function further comprises a junction box, the output end of the common lighting power supply line is connected with the isolation module through the junction box, and the output end of the emergency power supply line is connected with the input end of the emergency driving output module through the junction box.
Further, the rectifier bridge circuit comprises four diodes, the positive output end of the emergency drive module is connected with the negative bridge stack end of the rectifier bridge circuit, and the negative output end of the emergency drive module is connected with the positive bridge stack end of the rectifier bridge circuit.
Further, the emergency driving module includes a battery and an AC/DC charging unit that charges the battery.
Further, the AC/DC charging unit comprises an input filter, a rectifier filter and a high-frequency converter, wherein the input end of the input filter is connected with an emergency power supply line, the output end of the input filter is connected with the input end of the rectifier filter, the output end of the rectifier filter is connected with the input end of the high-frequency converter, and the high-frequency converter outputs constant-voltage direct current.
The technical scheme provided by the invention has the following beneficial effects:
a. the dimming can be realized in the emergency lighting state by using a dimmer dimming interface on the existing common drive and only by using an emergency drive output module to send a low-power dimming instruction to the dimmer dimming interface, an additional dimming module is not needed, and the cost of dimming hardware equipment is reduced;
b. the emergency dimming function can realize low-power output and prolong the emergency lighting time;
c. the lighting lamp is not required to be added, the existing lamp driving is not required to be changed, the installation and the use are convenient, and the emergency lighting cost is reduced;
d. the emergency driving power supply adopts the AC/DC charging unit for charging, so that the battery can always keep enough electric quantity.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic circuit diagram of an illumination circuit with an emergency dimming function compatible with a high-power emergency driving according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a first embodiment of an isolation module provided by an example of the present invention;
FIG. 3 is a schematic diagram of a second embodiment of an isolation module provided by an example of the present invention;
fig. 4 is a schematic block diagram of an AC/DC charging unit of a lighting circuit with an emergency dimming function compatible with high-power emergency driving according to an embodiment of the present invention.
Wherein the reference numerals include: 1-emergency driving output module, 11-dimming signal output unit, 12-input filter, 13-rectifying filter, 14-high frequency converter, 2-isolation module, 21-relay, 22-rectifying bridge circuit, 3-dimming driving module, 31-dimming signal unit, 4-lighting load, 5-emergency line live wire, 6-lighting line live wire, 7-zero wire and 8-junction box.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, apparatus, article, or device that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or device.
In an embodiment of the invention, a lighting circuit with an emergency dimming function compatible with high-power emergency driving is provided, and specifically, the lighting circuit with the emergency dimming function has a structure shown in fig. 1, and includes an emergency power supply line, an emergency driving module, a general lighting power supply line and a dimming driving module 3, wherein the emergency driving module includes an emergency driving output module 1 and an isolation module 2, an output end of the general lighting power supply line is connected with an input end of the dimming driving module 3 (preferably through a junction box) through the isolation module 2, and an output end of the dimming driving module 3 is connected with a lighting load 4.
The output end of the emergency power supply line (preferably through a junction box) is connected with the input end of the emergency driving output module 1, the output end of the emergency driving output module 1 is connected with the input end of the dimming driving module 3, the isolation module 2 is used for isolating the emergency driving module from the common lighting power supply line, the common lighting power supply line outputs the input end of the dimming driving module 3 after passing through the isolation module, the dimming driving module 3 is powered, the lighting function is realized, and the isolation module aims to avoid starting other lighting equipment of the same line in emergency. The junction box is provided to facilitate the electrician wiring operation.
The emergency driving output module 1 comprises a dimming signal output unit 11, the dimming driving module 3 comprises a dimming signal unit 31, the dimming signal output unit 11 is used for sending a dimming instruction to the dimming signal unit 31, the dimming signal unit 31 is used for dimming the lighting load 4 according to the dimming instruction, the dimming signal unit 31 is a dimmer dimming interface, the common driving is required to be provided with the dimming signal interface, the high-power driving in the current market is generally provided with the dimming interface, and the dimming driving module belongs to standard configuration.
The output end of the emergency driving output module 1 is directly connected to the input end of the dimming driving module 3, and the dimming driving module 3 is a conventional driving added with the dimming signal unit 31 and does not need to make structural adjustment on the conventional driving.
As shown in fig. 1, the emergency power supply circuit comprises an emergency line live wire 5, the common lighting power supply circuit comprises a lighting line live wire 6, and the emergency power supply circuit and the common lighting power supply circuit share a zero line 7.
The working process of the lighting circuit with the emergency dimming function and compatible with the high-power emergency driving is as follows: referring to fig. 1, in the present invention, the emergency driving output module 1 outputs a dc voltage to the dimming driving module 3 no matter whether a failure occurs in a general lighting power supply line, in the first case: when the common lighting power supply line is not in fault, the dimming driving module 3 has two inputs: the direct current input of the emergency driving output module 1 is firstly, and the direct current input of the common lighting power supply circuit after being rectified by the isolation module is secondly; the second case: when the common lighting power supply line breaks down, the dimming driving module 3 only has one input, namely, the direct current input of the emergency driving output module 1, so that emergency lighting is realized.
In the embodiment of the invention, the emergency driving output module 1 comprises a battery and an AC/DC charging unit for charging the battery, the AC is converted into a proper DC to supply power for the charging management of the battery, the battery charging management realizes intelligent charging for the battery, the battery is protected, the service life of the battery is prolonged, the safety of the battery is ensured, the battery supplies power for the AC converted DC through the emergency conversion circuit, and the AC converted DC module generates a proper high voltage to supply power for the dimming driving module so as to supply power for the lighting load.
Specifically, the AC/DC charging unit includes an input filter 12, a rectifier filter 13, and a high frequency converter 14, as shown in fig. 4, an input end of the input filter 12 is connected to an emergency power supply line, an output end of the input filter 12 is connected to an input end of the rectifier filter 13, an output end of the rectifier filter 13 is connected to an input end of the high frequency converter 14, and the high frequency converter 14 outputs a constant voltage direct current.
In a preferred embodiment of the present invention, the isolation module is a relay, as shown in fig. 3, a common lighting power supply line (a live line and a neutral line of a lighting line) is connected to the dimming driving module 3 through the relay, and meanwhile, the emergency driving output module 1 is connected to the dimming driving module 3 through the relay, so as to jointly provide electric energy for a lighting load; when the common lighting power supply line fails, the emergency driving output module 1 is connected with the dimming driving module 3 through the relay, namely, the battery in the emergency driving output module 1 provides electric energy for the lighting load independently. In this preferred embodiment, the dimming driving module 3 includes a dimming signal unit 31, and the dimming signal unit 31 outputs a dimming signal (a small voltage signal, that is, a low power voltage and current output) matched with the dimming driving module 3 according to the dimming instruction, so as to dim the lighting load 4, so as to implement the low power emergency function; the dimming signal unit 31 is preferably a dimmer dimming interface, and can replace a triac dimmer, the triac dimmer has high cost, complex wiring, easy damage and short service cycle, each conventional drive has the dimmer dimming interface, structural adjustment of the conventional drive is not needed, the operation is simple, and the cost can be greatly reduced. For the dimmable lighting load, in the emergency driving mode, the voltage and the current output by the emergency driving output module 1 are input to the dimming driving module 3, and the output power of the voltage and the current can be set to the minimum power threshold of the dimmable lighting load, so as to prolong the emergency lighting time.
In an alternative embodiment of the present invention, the isolation module is a rectifier bridge circuit, as shown in fig. 2, the rectifier bridge circuit includes four diodes, the positive output terminal (+) of the emergency drive output module 1 is connected to the negative bridge stack terminal (-) of the rectifier bridge circuit, and the negative output terminal of the emergency drive output module 1 is connected to the positive bridge stack terminal of the rectifier bridge circuit. Because of the unidirectional conductivity of the diode, the high-voltage direct current output in emergency can not reach the live wire and the zero line of the lighting line, and the isolation effect is achieved. The high-voltage direct current is input into the dimming driving module, and the normal work of the common lighting driving cannot be influenced.
According to the invention, the dimmer dimming interface on the existing common drive is utilized, and only the emergency drive output module is required to send a low-power dimming instruction to the dimmer interface, so that dimming can be realized in an emergency lighting state, an additional dimming module is not required, and the cost of dimming hardware equipment is reduced; the emergency dimming function can realize low-power output and prolong the emergency lighting time.
The invention does not need to increase the lighting lamp and change the existing lamp drive, only adds the dimming signal output unit and the dimming signal unit on the basis of the existing drive, realizes normal lighting and emergency lighting after failure, and has convenient installation and use. And other lighting loads on the same line are connected with the same live wire and the same zero wire, if the other lighting loads realize dimming in an emergency lighting state, the common lighting power supply line is connected with the input end of the dimming driving module through the junction box and the isolation module, and the output end of the dimming driving module is connected with the lighting loads.
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 (10)
1. A lighting circuit compatible with high-power emergency driving and having an emergency dimming function is characterized by comprising an emergency power supply line, an emergency driving module, a common lighting power supply line and a dimming driving module (3), wherein the emergency driving module comprises an emergency driving output module (1) and an isolation module (2), the emergency driving output module (1) comprises a dimming signal output unit (11), and the dimming driving module (3) comprises a dimming signal unit (31);
the output end of the common lighting power supply circuit is connected with the input end of the dimming driving module (3) through the isolation module (2), and the output end of the dimming driving module (3) is connected with the lighting load (4);
the output end of the emergency power supply line is connected with the input end of an emergency driving output module (1), the output end of the emergency driving output module (1) is connected with the input end of the dimming driving module (3), and the isolation module (2) is used for isolating the emergency driving module from a common lighting power supply line;
the dimming signal output unit (11) is used for sending a dimming instruction to the dimming signal unit (31), and the dimming signal unit (31) is used for dimming the lighting load (4) according to the dimming instruction.
2. The lighting circuit with emergency dimming function compatible with high-power emergency driving according to claim 1, wherein the dimming signal unit (31) is a dimmer dimming interface.
3. The lighting circuit with emergency dimming function compatible with high-power emergency driving according to claim 1, wherein the lighting load (4) is a dimmable lighting load.
4. Lighting circuit with emergency dimming function compatible with high power emergency driving according to claim 1, characterized in that the isolation module (2) is a relay (21).
5. The lighting circuit with emergency dimming function compatible with high-power emergency driving according to claim 1, wherein the isolation module (2) is a rectifier bridge circuit (22).
6. The lighting circuit with emergency dimming function compatible with high-power emergency driving according to claim 1, wherein the emergency power supply circuit comprises an emergency line live wire (5), the common lighting power supply circuit comprises a lighting line live wire (6), and the emergency power supply circuit and the common lighting power supply circuit share a zero wire (7).
7. The lighting circuit with the emergency dimming function compatible with the high-power emergency driving as claimed in claim 1, further comprising a junction box (8), wherein the output end of the general lighting power supply line is connected with the isolation module (2) through the junction box (8), and the output end of the emergency power supply line is connected with the input end of the emergency driving output module (1) through the junction box (8).
8. The lighting circuit with emergency dimming function compatible with high-power emergency driving as claimed in claim 5, wherein the rectifier bridge circuit (22) comprises four diodes, the positive output terminal of the emergency driving module is connected with the negative bridge stack terminal of the rectifier bridge circuit (22), and the negative output terminal of the emergency driving module is connected with the positive bridge stack terminal of the rectifier bridge circuit (22).
9. The lighting circuit with emergency dimming function compatible with high-power emergency driving as claimed in claim 1, wherein the emergency driving module comprises a battery and an AC/DC charging unit for charging the battery.
10. The lighting circuit with emergency dimming function compatible with high power emergency driving according to claim 9, wherein the AC/DC charging unit comprises an input filter (12), a rectifying filter (13) and a high frequency converter (14), an input end of the input filter (12) is connected with an emergency power supply line, an output end of the input filter (12) is connected with an input end of the rectifying filter (13), an output end of the rectifying filter (13) is connected with an input end of the high frequency converter (14), and the high frequency converter (14) outputs a constant voltage direct current.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010096114.6A CN111194125A (en) | 2020-02-17 | 2020-02-17 | Lighting circuit compatible with high-power emergency driving and having emergency dimming function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010096114.6A CN111194125A (en) | 2020-02-17 | 2020-02-17 | Lighting circuit compatible with high-power emergency driving and having emergency dimming function |
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| CN111194125A true CN111194125A (en) | 2020-05-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111683435A (en) * | 2020-05-25 | 2020-09-18 | 中船邮轮科技发展有限公司 | Additional emergency lighting equipment capable of being controlled in real time in on-off mode and cabin |
-
2020
- 2020-02-17 CN CN202010096114.6A patent/CN111194125A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111683435A (en) * | 2020-05-25 | 2020-09-18 | 中船邮轮科技发展有限公司 | Additional emergency lighting equipment capable of being controlled in real time in on-off mode and cabin |
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Address after: Huqiu high tech Zone of Suzhou City, Jiangsu province 215151 Shen Lane Road No. 1 Applicant after: Suzhou Angrui Electronic Technology Co., Ltd Address before: 215151 No. 1, Shenxiang Road, Hushuguan Economic Development Zone, Suzhou High-tech Zone, Jiangsu Province Applicant before: SUZHOU KOSNIC LIGHTING TECHNOLOGY Co.,Ltd. |
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