CN220292219U - Direct current centralized lighting power distribution system - Google Patents
Direct current centralized lighting power distribution system Download PDFInfo
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- CN220292219U CN220292219U CN202320932087.0U CN202320932087U CN220292219U CN 220292219 U CN220292219 U CN 220292219U CN 202320932087 U CN202320932087 U CN 202320932087U CN 220292219 U CN220292219 U CN 220292219U
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Abstract
The utility model provides a direct-current centralized lighting power distribution system, which is characterized in that a dimming control module is connected with a plurality of driving loops through a plurality of dimming modules, so that the dimming control module can control a lamp on one lighting power supply driving loop to dim through the distributed dimming modules; the dimming module is realized by attaching a dimming signal to the direct current circuit, and can synchronously receive the dimming instruction of the dimming control module through the dimming module under the condition of not adding a communication cable and alternating current coupling/decoupling equipment, and the designated part of the dimming module responds to the dimming instruction, so that the dimming signal is issued to a driving circuit connected with the dimming module, the dimming of a single circuit is realized, the dimming instruction is prevented from directly issuing control instructions to all driving circuits, and the error probability of circuit control is reduced.
Description
Technical Field
The utility model relates to the technical field of direct-current centralized illumination, in particular to a direct-current centralized illumination power distribution system.
Background
The direct current centralized lighting technology is characterized in that an AC/DC rectifier is arranged in a power distribution cabinet in a centralized manner, alternating current electric energy is converted into direct current, and voltage low-frequency lifting coupling dimming information of high-voltage direct current is utilized to transmit to a decoding chip on a lamp driver for dimming. However, in the current direct current centralized lighting distribution circuit, the dimming signal is generally uniformly input to the decoding chips on all lamp drivers to dim all loops together, so that the lamps on a single circuit cannot be controlled, and the error probability of the circuit is high.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: the direct-current centralized lighting power distribution system is used for realizing dimming of a single loop and reducing the error probability of a circuit.
In order to solve the technical problems, the utility model adopts the following technical scheme:
a direct current centralized lighting power distribution system comprises a dimming control module, a plurality of dimming modules and a driving loop; the input end of the dimming control module is used for inputting dimming signals, the output ends of the dimming control module are respectively connected with the signal input ends of the dimming modules, the power supply input end of the dimming module is used for inputting direct current, and the output end of each dimming module is connected with one driving loop.
Further, the dimming device further comprises a rectifying module, wherein the power supply input end of the rectifying module is used for inputting alternating current, and the power supply output ends of the rectifying module are respectively connected with the power supply input ends of the dimming modules; the signal input end of the rectifying module is connected with the output end of the dimming control module, and the signal output ends of the rectifying module are respectively connected with the signal input ends of the dimming modules.
Further, the power supply output ends of the rectification modules are respectively connected with the power supply input ends of the dimming modules through direct current buses; and the signal output ends of the rectification modules are respectively connected with the signal input ends of the dimming modules through RS-485 communication buses.
Further, the device also comprises an insulation detection module, one end of the insulation detection module is connected with the direct current bus, and the other end of the insulation detection module is connected with the RS-485 communication bus.
Further, the lightning protection device also comprises a lightning protection module, one end of the lightning protection module is connected with the direct current bus, and the other end of the lightning protection module is connected with the RS-485 communication bus.
Further, the dimming control module further comprises a remote communication module, wherein the remote communication module is connected with a communication interface of the dimming control module.
Further, the dimming control device further comprises a touch input module, wherein the touch input module is connected with the input end of the dimming control module.
Further, the device also comprises a plurality of air circuit breakers, wherein the power supply output ends of the rectifying modules are respectively connected with one ends of the plurality of air circuit breakers, and the other ends of the plurality of air circuit breakers are connected with the power supply input ends of the plurality of dimming modules;
the signal output ends of the rectification modules are respectively connected with one ends of the air circuit breakers, and the other ends of the air circuit breakers are connected with the signal input ends of the dimming modules.
The utility model has the beneficial effects that: the dimming control module is connected with the driving loops through the dimming modules, so that the dimming control module can control the lamps on one of the lighting power supply driving loops to dim through the distributed dimming modules; the dimming module is realized by attaching a dimming signal to the direct current circuit, and can synchronously receive the dimming instruction of the dimming control module through the dimming module under the condition of not adding a communication cable and alternating current coupling/decoupling equipment, and the designated part of the dimming module responds to the dimming instruction, so that the dimming signal is issued to a driving circuit connected with the dimming module, the dimming of a single circuit is realized, the dimming instruction is prevented from directly issuing control instructions to all driving circuits, and the error probability of circuit control is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a dc centralized lighting power distribution system according to an embodiment of the present utility model;
description of the reference numerals:
1. a dimming control module; 2. a dimming module; 3. a drive circuit; 4. a rectifying module; 5. a strong current cable; 6. three-phase multifunctional electric power instrument; 7. a direct current bus; 8. an RS-485 communication bus; 9. an insulation detection module; 10. a lightning protection module; 11. a remote communication module; 12. a touch input module; 13. an air circuit breaker.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present utility model in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
Referring to fig. 1, a dc centralized lighting power distribution system includes a dimming control module, a plurality of dimming modules, and a driving circuit; the input end of the dimming control module is used for inputting dimming signals, the output ends of the dimming control module are respectively connected with the signal input ends of the dimming modules, the power supply input end of the dimming module is used for inputting direct current, and the output end of each dimming module is connected with one driving loop.
From the above description, the beneficial effects of the utility model are as follows: the dimming control module is connected with the driving loops through the dimming modules, so that the dimming control module can control the lamps on one of the lighting power supply driving loops to dim through the distributed dimming modules; the dimming module is realized by attaching a dimming signal to the direct current circuit, and can synchronously receive the dimming instruction of the dimming control module through the dimming module under the condition of not adding a communication cable and alternating current coupling/decoupling equipment, and the designated part of the dimming module responds to the dimming instruction, so that the dimming signal is issued to a driving circuit connected with the dimming module, the dimming of a single circuit is realized, the dimming instruction is prevented from directly issuing control instructions to all driving circuits, and the error probability of circuit control is reduced.
Further, the dimming device further comprises a rectifying module, wherein the power supply input end of the rectifying module is used for inputting alternating current, and the power supply output ends of the rectifying module are respectively connected with the power supply input ends of the dimming modules; the signal input end of the rectifying module is connected with the output end of the dimming control module, and the signal output ends of the rectifying module are respectively connected with the signal input ends of the dimming modules.
As can be seen from the above description, the ac power is input to the power supply input end of the dimming module after passing through the rectifying module, the low-voltage ac power is converted into the high-voltage dc power by the rectifying module, and the high-voltage dc power is input to the dimming module; meanwhile, the dimming control module inputs a dimming signal into the rectification module, so that the dimming signal is input into the dimming module; the coupling of the signal and the direct current is realized in the dimming module, and the signal is received and responded after the decoupling of the driving loop, so that the dimming control of a single loop is realized.
Further, the power supply output ends of the rectification modules are respectively connected with the power supply input ends of the dimming modules through direct current buses; and the signal output ends of the rectification modules are respectively connected with the signal input ends of the dimming modules through RS-485 communication buses.
As can be seen from the above description, the power supply output end of the rectifying module is connected with the plurality of dimming modules through a direct current bus, and the signal output end of the rectifying module is connected with the plurality of dimming modules through an RS-485 communication bus, so that the plurality of dimming modules can be simultaneously connected in the same shared channel in a parallel branch mode to form a distributed dimming module, so that dimming control of a single loop is realized.
Further, the device also comprises an insulation detection module, one end of the insulation detection module is connected with the direct current bus, and the other end of the insulation detection module is connected with the RS-485 communication bus.
As can be seen from the above description, the insulation detection module ensures that the direct current and the dimming signal are normally input, and the circuit is protected.
Further, the lightning protection device also comprises a lightning protection module, one end of the lightning protection module is connected with the direct current bus, and the other end of the lightning protection module is connected with the RS-485 communication bus.
From the above description, when the direct current bus or the RS-485 communication bus suddenly generates peak current or voltage due to interference from the outside, the lightning protection module can conduct and shunt in a very short time, so as to avoid damage to other devices in the system caused by current or voltage surge.
Further, the dimming control module further comprises a remote communication module, wherein the remote communication module is connected with a communication interface of the dimming control module.
As can be seen from the above description, the dimming command can be remotely transmitted to the dimming control module through the remote communication module, so as to remotely control the lamp in the driving circuit.
Further, the dimming control device further comprises a touch input module, wherein the touch input module is connected with the input end of the dimming control module.
As can be seen from the above description, the dimming command can be directly input to the dimming control module through the touch input module, so as to control the device on the designated driving circuit in real time.
Further, the device also comprises a plurality of air circuit breakers, wherein the power supply output ends of the rectifying modules are respectively connected with one ends of the plurality of air circuit breakers, and the other ends of the plurality of air circuit breakers are connected with the power supply input ends of the plurality of dimming modules;
the signal output ends of the rectification modules are respectively connected with one ends of the air circuit breakers, and the other ends of the air circuit breakers are connected with the signal input ends of the dimming modules.
As can be seen from the above description, when one of the distributed dimming modules fails or is damaged, the air circuit breaker can cut off the power supply of the dimming module in time, so as to avoid affecting other dimming modules in the system.
The direct current centralized lighting power distribution system provided by the utility model can be used for controlling the scene with a large number of lighting equipment to realize dimming of a single loop and reduce the error probability of a circuit, and the following is explained by a specific embodiment:
referring to fig. 1, a first embodiment of the present utility model is as follows:
a direct current centralized lighting power distribution system comprises a dimming control module 1, a plurality of dimming modules 2 and a driving loop 3; specifically, the input end of the dimming control module 1 is used for inputting dimming signals, the output ends of the dimming control module 1 are respectively connected with the signal input ends of the dimming modules 2, the power supply input ends of the dimming modules 2 are used for inputting direct current, and the output end of each dimming module 2 is connected with one driving loop 3.
In some embodiments, the dimming control module 1 and the plurality of dimming modules 2 are centralized in a power distribution cabinet, and the dimming control module 1 is a local control host of the power distribution cabinet. Wherein the voltage of the direct current is 200-300V. The width of the power distribution cabinet is 700mm, the depth is 700mm, and the height is 1800mm; and floor mounting is adopted.
In some embodiments, the dimming signal is generated based on a MODBUS protocol (a communication protocol).
The system further comprises a rectifying module 4, wherein the power supply input end of the rectifying module 4 is used for inputting alternating current, and the power supply output ends of the rectifying module 4 are respectively connected with the power supply input ends of the dimming modules 2; the signal input end of the rectifying module 4 is connected with the output end of the dimming control module 1, and the signal output ends of the rectifying module 4 are respectively connected with the signal input ends of the dimming modules 2.
In some embodiments, the number of the rectifying modules 4 is 3, and the rectifying modules 4 are arranged in parallel. The model of the rectifying module 4 is EVR500-10000.
In some embodiments, the alternating current has a voltage of 380V. The alternating current is input to the power supply input end of the rectifying module through a strong current cable 5.
In some embodiments, the power supply input end of the rectifying module 4 is connected with a three-phase multifunctional power meter 6, and the model number of the three-phase multifunctional power meter is CNIK300-E. The strong current cable 5 is also connected with a lightning protection module 10 and an air breaker 12, so that other devices are prevented from being damaged by circuit surges. The model of the lightning protection module is YDF40-385/3+1.
Specifically, the power supply output ends of the rectifying modules 4 are respectively connected with the power supply input ends of the dimming modules 2 through direct current buses 7; the signal output ends of the rectifying modules 4 are respectively connected with the signal input ends of the dimming modules 2 through RS-485 communication buses 8.
The system further comprises an insulation detection module 9, one end of the insulation detection module 9 is connected with the direct current bus 7, and the other end of the insulation detection module 9 is connected with the RS-485 communication bus 8.
The system further comprises a lightning protection module 10, one end of the lightning protection module 10 is connected with the direct current bus 7, and the other end of the lightning protection module 10 is connected with the RS-485 communication bus 8.
In some embodiments, the lightning protection module 10 is model YDF40-350D/2P.
The system further comprises a remote communication module 11, said remote communication module 11 being connected to the communication interface of said dimming control module 1.
The system further comprises a touch input module 12, wherein the touch input module 12 is connected with the input end of the dimming control module 1.
In some embodiments, the power distribution cabinet is provided with a touch screen, and the touch input module 12 may be connected to the touch screen and receive signals input by the touch screen.
The system further comprises a plurality of air circuit breakers 13, wherein the power supply output ends of the rectifying modules 4 are respectively connected with one ends of the plurality of air circuit breakers 13, and the other ends of the plurality of air circuit breakers 13 are connected with the power supply input ends of the plurality of dimming modules 2; the signal output ends of the rectifying modules 4 are respectively connected with one ends of the air circuit breakers 13, and the other ends of the air circuit breakers 13 are connected with the signal input ends of the dimming modules 2.
In some embodiments, the air short 13 is DZ47 sZ-2P-C32A.
In some embodiments, the dimming module 2 includes a dc power input module, a signal input module, a power coupling conversion module, a driving module, and a power coupling output module. The power coupling conversion module is respectively connected with the direct current input module, the driving module and the power coupling output module, and the driving module is also connected with the signal input module.
The working principle of the direct current centralized illumination power distribution system is as follows:
the AC380V alternating current is input into the rectifying module through the strong current cable and then is converted into DC 200-300V direct current, and the DC 200-300V direct current is input into the direct current input module of the dimming module through the direct current bus; the light-adjusting signal based on MODBUS protocol is input into the signal input module of the light-adjusting module through the RS-485 communication bus, is converted into a driving signal after being identified by the driving module of the light-adjusting module, and the driving module sends out high and low voltages with low frequency and amplitude of +/-5V, so that the power coupling conversion module of the light-adjusting module converts direct current into power coupling signals with coupling signals, the power coupling signals are output to the driving loop corresponding to the light-adjusting module through the power coupling output module of the light-adjusting module, and after the light-adjusting signal is coupled with strong electricity through the intelligent driving module in the driving loop, the brightness of a lamp in the driving loop can be adjusted through changing the duty ratio of the voltage PWM waveform output by the light-adjusting module.
In summary, in the direct-current centralized lighting power distribution system provided by the utility model, the dimming control module is connected with the driving loops through the dimming modules, so that the dimming control module can control the lamps on one of the lighting power supply driving loops to dim through the distributed dimming modules; the dimming module is realized by attaching a dimming signal to the direct current circuit, and can synchronously receive the dimming instruction of the dimming control module through the dimming module under the condition of not adding a communication cable and alternating current coupling/decoupling equipment, and the designated part of the dimming module responds to the dimming instruction, so that the dimming signal is issued to a driving circuit connected with the dimming module, the dimming of a single circuit is realized, the dimming instruction is prevented from directly issuing control instructions to all driving circuits, and the error probability of circuit control is reduced. Compared with a centralized dimming mode, the method does not need to uniformly control the rising and falling of the direct current bus voltage in a high current state, so that a dimming signal is sent, and the voltage on a corresponding loop is only used for control, so that the rated current requirement of the system is greatly reduced.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent changes made by the specification and drawings of the present utility model, or direct or indirect application in the relevant art, are included in the scope of the present utility model.
Claims (8)
1. The direct-current centralized lighting power distribution system is characterized by comprising a dimming control module, a plurality of dimming modules and a driving loop; the input end of the dimming control module is used for inputting dimming signals, the output ends of the dimming control module are respectively connected with the signal input ends of the dimming modules, the power supply input end of the dimming module is used for inputting direct current, and the output end of each dimming module is connected with one driving loop.
2. The direct current centralized lighting power distribution system according to claim 1, further comprising a rectifying module, wherein a power supply input end of the rectifying module is used for inputting alternating current, and power supply output ends of the rectifying module are respectively connected with power supply input ends of the plurality of dimming modules; the signal input end of the rectifying module is connected with the output end of the dimming control module, and the signal output ends of the rectifying module are respectively connected with the signal input ends of the dimming modules.
3. The direct current centralized lighting power distribution system according to claim 2, wherein the power supply output ends of the rectifying modules are respectively connected with the power supply input ends of the plurality of dimming modules through direct current buses; and the signal output ends of the rectification modules are respectively connected with the signal input ends of the dimming modules through RS-485 communication buses.
4. A direct current concentrated lighting power distribution system as claimed in claim 3, further comprising an insulation detection module, wherein one end of the insulation detection module is connected to the direct current bus, and the other end of the insulation detection module is connected to the RS-485 communication bus.
5. A direct current centralized lighting power distribution system as claimed in claim 3, further comprising a lightning protection module, wherein one end of the lightning protection module is connected to the direct current bus, and the other end of the lightning protection module is connected to the RS-485 communication bus.
6. The direct current centralized lighting power distribution system of claim 1, further comprising a remote communication module, the remote communication module being coupled to the communication interface of the dimming control module.
7. The direct current centralized lighting power distribution system of claim 1, further comprising a touch input module, wherein the touch input module is connected to an input of the dimming control module.
8. The direct current centralized lighting power distribution system according to claim 2, further comprising a plurality of air circuit breakers, wherein the power supply output ends of the rectifying modules are respectively connected with one ends of the plurality of air circuit breakers, and the other ends of the plurality of air circuit breakers are connected with the power supply input ends of the plurality of dimming modules;
the signal output ends of the rectification modules are respectively connected with one ends of the plurality of air circuit breakers, and the other ends of the plurality of air circuit breakers are connected with the signal input ends of the plurality of dimming modules.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202320932087.0U CN220292219U (en) | 2023-04-21 | 2023-04-21 | Direct current centralized lighting power distribution system |
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| CN202320932087.0U CN220292219U (en) | 2023-04-21 | 2023-04-21 | Direct current centralized lighting power distribution system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118201164A (en) * | 2024-05-20 | 2024-06-14 | 深圳市格瑞达照明工程有限公司 | Intelligent control method and system for direct-current centralized lighting equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118201164A (en) * | 2024-05-20 | 2024-06-14 | 深圳市格瑞达照明工程有限公司 | Intelligent control method and system for direct-current centralized lighting equipment |
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