CN112153772A - Control method and device for intelligent lighting cabinet and matched terminal control box - Google Patents
Control method and device for intelligent lighting cabinet and matched terminal control box Download PDFInfo
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- CN112153772A CN112153772A CN202010847683.XA CN202010847683A CN112153772A CN 112153772 A CN112153772 A CN 112153772A CN 202010847683 A CN202010847683 A CN 202010847683A CN 112153772 A CN112153772 A CN 112153772A
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- intelligent lighting
- control box
- cabinet
- terminal control
- power supply
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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
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
- H05B45/12—Controlling the intensity of the light using optical feedback
-
- 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
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
-
- 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
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
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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
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
-
- 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
-
- 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
- H05B47/105—Controlling the light source in response to determined parameters
- H05B47/11—Controlling the light source in response to determined parameters by determining the brightness or colour temperature of ambient light
-
- 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
- H05B47/16—Controlling the light source by timing means
-
- 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
- H05B47/17—Operational modes, e.g. switching from manual to automatic mode or prohibiting specific operations
-
- 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
- H05B47/20—Responsive to malfunctions or to light source life; for protection
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- 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 a control method and a control device for an intelligent lighting cabinet and a matched terminal control box, which realize more energy-saving, more flexible and more intelligent control modes for outdoor lighting by matching a field terminal control box with a power distribution center intelligent lighting cabinet, can meet lighting control requirements of different occasions by diversified control modes, have higher energy-saving efficiency and can meet the requirements of energy saving and environmental protection.
Description
Technical Field
The invention relates to the field of industrial lighting control, in particular to a control method and a control device for an intelligent lighting cabinet and a matched terminal control box.
Background
With the development of science and technology, in recent years, the electricity consumption is greatly increased, the LED technology is mature day by day, and the LED technology gradually replaces the traditional fluorescent lamp in daily life. The traditional lamp has large power consumption when working, and generates large heat when working, which easily causes the problems of damage and the like, therefore, the intelligent lighting is very widely applied to the current industrial field. The intelligent lighting can achieve the purposes of safety, energy conservation, comfort and high efficiency, but in the application of the existing industrial production field and the public facility field, under different working environments, the regulation of the lighting still needs to be carried out manually, and the manual regulation is inconvenient and wastes labor force. Therefore, a control method and a control device for an intelligent lighting cabinet and a matched terminal control box, which have the advantages of stable work, diversified control modes, energy conservation and environmental protection, are needed.
Disclosure of Invention
The invention aims to provide a control method and a control device for an intelligent lighting cabinet and a matched terminal control box, which have the advantages of stable work, diversified control modes, energy conservation and environmental protection.
In order to ensure that the work is stable, the control mode is diversified, the energy is saved and the environment is protected in the using process, the invention relates to a control method for an intelligent lighting cabinet and a matched terminal control box, which comprises the following steps:
s1, installing the light sensor outside the distribution room to collect light, and performing primary light collection treatment on the light source, wherein the intelligent lighting cabinet is installed in a low-voltage distribution center, and the terminal control box is installed in each outdoor field area;
s2; converting the lighting luminosity value in the step S1 into an electric signal and transmitting the electric signal to a lighting adjusting controller of the intelligent lighting cabinet;
and S3, the electric signal is processed to adjust the illumination of the lamp according to the light darkness, or the electric signal is controlled to control the on-off and the brightness of the lamp according to the longitude and latitude and the time through calculation under the control of an astronomical clock built in the illumination adjusting controller.
The intelligent lighting control system has the advantages that the field terminal control box is matched with the intelligent lighting cabinet of the power distribution center to realize a more energy-saving, more flexible and more intelligent control mode for outdoor lighting, the lighting control requirements of different occasions can be met through diversified control modes, the energy-saving efficiency is higher, and the requirements of energy saving and environmental protection can be met.
Further, a dual-power automatic transfer switch is arranged in the intelligent lighting cabinet in the step S2, and is used for getting power from different power supply segmented loops, and when the main power supply loses power, the main power supply is rapidly and automatically transferred to the standby power supply to continue to supply power. The continuity of power supply of the intelligent lighting cabinet is kept through the double-power automatic transfer switch.
Further, a static bypass switch and a lighting adjustment controller are arranged in the intelligent lighting cabinet in the step S2, and the static bypass switch is used for automatically switching to bypass operation through the static bypass switch after the lighting adjustment controller fails. Through static bypass switch, the response is fast, no switching noise.
Furthermore, the illumination regulation controller performs sampling analysis on input and output power supplies, combines a flexible alternating current transmission technology, a flexible reactive power compensation technology based on a space voltage loss PWM generation technology, an automatic detection harmonic elimination function, an instantaneous overcurrent and surge suppression technology, a built-in astronomical clock control function and an external light sensor to realize a time light control function. And the control parameters can be adjusted and optimized through the parameter adjusting touch screen. The control power supply with stable output, energy saving and high efficiency is supplied to the lamp.
Further, a power circuit breaker and a lighting loop control switch are arranged in the terminal control box in the step S1; the terminal control box is provided with two paths of incoming line power circuit breakers, wherein one path of power supply is led from an intelligent control power supply of the intelligent lighting cabinet, the other path of power supply is led from commercial power of the intelligent lighting cabinet, and power supply switching is carried out through a lighting loop control switch on the terminal control box. When the lighting loop control switch is switched to the 'automatic' position, the lamps of the corresponding loop run to light in a mode (astronomical clock control or light sensation control) set by the intelligent lighting cabinet, when the lighting loop control switch is switched to the 'off' position, the lamps of the corresponding loop are turned off, and when the lighting loop control switch is switched to the 'on' position, the lamps are manually turned on and are not intelligently controlled by the intelligent lighting cabinet.
Further, a control element is arranged in the terminal control box in the step S1; the control element adopts a solid-state relay. Compared with a contactor widely applied, the solid-state relay has the advantages of small size, long service life, small heat dissipation and the like, and is beneficial to the arrangement of a terminal control box to be more compact and the structure to be optimized.
A control device for an intelligent lighting cabinet and a matched terminal control box comprises a light sensation sensor, the intelligent lighting cabinet and the terminal control box; the light sensor is arranged outside the power distribution room and is convenient for lighting; the intelligent lighting cabinet is arranged in a low-voltage power distribution center; the terminal control box is arranged outdoors; the light sensation sensor, the intelligent lighting cabinet and the terminal control box are fixedly connected through electric wires.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a lighting control method and apparatus for an intelligent lighting cabinet and a control box of a terminal;
FIG. 2 is a diagram of the structure of an intelligent lighting cabinet used in the control method and apparatus of the intelligent lighting cabinet and the control box of the terminal;
FIG. 3 is a diagram of a terminal control box structure for the control method and apparatus of an intelligent lighting cabinet and a terminal control box;
FIG. 4 is a side view of a terminal control box for use in the method and apparatus for controlling an intelligent lighting cabinet and a mating terminal control box of the present invention;
FIG. 5 is a system diagram of an intelligent lighting cabinet for controlling the intelligent lighting cabinet and the control box of the terminal;
fig. 6 is a schematic diagram of a terminal control box for the control method and device of the intelligent lighting cabinet and the matched terminal control box of the invention.
The corresponding part names indicated by the numbers in the figures:
1. a cabinet body; 2. a dual power automatic transfer switch; 3. a static bypass switch; 4. a lighting adjustment controller; 5. a line output switch; 6. adjusting parameters and monitoring a touch screen by signals; 7. a signal indicator light; 8. a box body; 9. a power supply operating switch; 10. a power circuit breaker; 11. a control element; 12. a signal indicator light; 13. a lighting circuit control switch; 14. a metal incoming line sealing head; 15. and fixing the ears.
Detailed Description
The present invention will be further described in detail with reference to the following specific examples:
the invention aims to provide a control method and a control device for an intelligent lighting cabinet and a matched terminal control box, which have the advantages of stable work, diversified control modes, energy conservation and environmental protection.
As shown in fig. 1, fig. 2, fig. 3 and fig. 4, in order to ensure stable operation, diversified control modes, energy saving and environmental protection in the using process, the invention relates to a control method for an intelligent lighting cabinet and a matched terminal control box, which comprises the following steps:
s1, installing the light sensor outside the distribution room to collect light, and performing primary light collection treatment on the light source, wherein the intelligent lighting cabinet is installed in a low-voltage distribution center, and the terminal control box is installed in each outdoor field area;
s2; converting the lighting luminosity value in the step S1 into an electric signal and transmitting the electric signal to a lighting adjusting controller of the intelligent lighting cabinet;
and S3, the electric signal is processed to adjust the illumination of the lamp according to the light darkness, or the electric signal is controlled to control the on-off and the brightness of the lamp according to the longitude and latitude and the time through calculation under the control of an astronomical clock built in the illumination adjusting controller.
The intelligent lighting control system has the advantages that the field terminal control box is matched with the intelligent lighting cabinet of the power distribution center to realize a more energy-saving, more flexible and more intelligent control mode for outdoor lighting, the lighting control requirements of different occasions can be met through diversified control modes, the energy-saving efficiency is higher, and the requirements of energy saving and environmental protection can be met.
In actual operation, the intelligent lighting cabinet comprises a cabinet body 1 and is characterized in that the intelligent lighting cabinet also comprises a dual-power automatic transfer switch 2, a static bypass switch 3, a lighting adjustment controller 4, a line output switch 5, a parameter adjustment and signal monitoring touch screen 6 and a signal indicator lamp 7; the terminal control box is matched with the intelligent lighting cabinet for operation, and comprises a box body 8, and is characterized in that a power supply operation switch 9, a signal indicator lamp 12, a lighting loop control switch 13 and a metal incoming and outgoing line sealing head 14 are further integrated on a box body panel, and a power supply breaker 10 and a control element 11 are further arranged in the terminal control box.
Further, a dual-power automatic transfer switch 2 is arranged in the intelligent lighting cabinet in the step S2, and is used for getting power from different power supply segmented loops, and when the main power supply loses power, the main power supply is rapidly and automatically switched to the standby power supply to continue supplying power. The continuity of power supply of the intelligent lighting cabinet is kept through the double-power automatic transfer switch 2.
Further, a static bypass switch 3 and a lighting adjustment controller 4 are arranged in the intelligent lighting cabinet in step S2, and the static bypass switch 3 is used for automatically switching to bypass operation through the static bypass switch 3 after the lighting adjustment controller fails. By the static bypass switch 3, the response is fast and no switching noise is generated.
Further, the lighting regulation controller 4 performs sampling analysis on input and output power supplies, combines a flexible alternating current transmission technology, a flexible reactive power compensation technology based on a space voltage loss PWM generation technology, an automatic detection and harmonic elimination function, an instantaneous overcurrent and surge suppression technology, a built-in astronomical clock control function and an external light sensor to realize a time light control function. And the control parameters can be adjusted and optimized through the parameter adjusting touch screen. The control power supply with stable output, energy saving and high efficiency is supplied to the lamp.
As shown in fig. 5, in actual operation, the intelligent lighting cabinet sets parameters according to actual requirements by acquiring external signals or by using the parameter adjusting touch screen 6, and the lighting adjusting controller 4 automatically outputs a control power supply to the terminal control box; the method comprises the steps of collecting input and output power parameters simultaneously for analysis, and adjusting and optimizing the parameter waveform of the output lamp lighting power supply by combining the flexible reactive power compensation, the automatic detection and harmonic elimination function, the instantaneous overcurrent and surge suppression and other technologies based on the space voltage loss PWM generation technology in the flexible alternating current transmission technology (FACTS). And stable, energy-saving and efficient illumination is output to the terminal control box.
As shown in fig. 6, further, the terminal control box in step S1 is provided with a power circuit breaker 10 and a lighting circuit control switch 13; the terminal control box is provided with two incoming line power circuit breakers 10, wherein one path of power supply is led from an intelligent control power supply of the intelligent lighting cabinet, the other path of power supply is led from commercial power of the intelligent lighting cabinet, and power supply switching is carried out through a lighting loop control switch 13 on the terminal control box. When the lighting loop control switch 13 is switched to the 'automatic' position, the lamps of the corresponding loop are controlled by an astronomical clock or light sensation according to the setting mode of the intelligent lighting cabinet, the lamps are operated to be on, when the lighting loop control switch is switched to the 'off' position, the lamps of the corresponding loop are turned off, when the lighting loop control switch is switched to the 'on' position, the lamps are manually turned on and are not intelligently controlled by the intelligent lighting cabinet.
Further, a control element 11 is arranged in the terminal control box in the step S1; the control element 11 is a solid state relay. Compared with a contactor widely applied, the solid-state relay has the advantages of small size, long service life, small heat dissipation and the like, and is beneficial to the arrangement of a terminal control box to be more compact and the structure to be optimized.
As shown in fig. 1, a control device for an intelligent lighting cabinet and a terminal control box matched with the intelligent lighting cabinet comprises a light sensor, an intelligent lighting cabinet and a terminal control box; the light sensor is arranged outside the power distribution room and is convenient for lighting; the intelligent lighting cabinet is arranged in a low-voltage power distribution center; the terminal control box is arranged outdoors; the light sensation sensor, the intelligent lighting cabinet and the terminal control box are fixedly connected through electric wires.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A control method for an intelligent lighting cabinet and a matched terminal control box is characterized by comprising the following steps:
s1, installing the light sensor outside the distribution room to collect light, and performing primary light collection treatment on the light source, wherein the intelligent lighting cabinet is installed in a low-voltage distribution center, and the terminal control box is installed in each outdoor field area;
s2; converting the lighting luminosity value in the step S1 into an electric signal and transmitting the electric signal to a lighting adjusting controller of the intelligent lighting cabinet;
and S3, the electric signal is processed to adjust the illumination of the lamp according to the light darkness, or the electric signal is controlled to control the on-off and the brightness of the lamp according to the longitude and latitude and the time through calculation under the control of an astronomical clock built in the illumination adjusting controller.
2. The control method for the intelligent lighting cabinet and the matched terminal control box according to claim 1, wherein the control method comprises the following steps: and a double-power-supply automatic change-over switch is arranged in the intelligent lighting cabinet in the step S2 and is used for getting electricity from different power supply sectional loops, and when the main power supply loses the electricity, the main power supply is quickly and automatically switched to a standby power supply to continue supplying the electricity.
3. The control method for the intelligent lighting cabinet and the matched terminal control box according to claim 2, wherein the control method comprises the following steps: and a static bypass switch and an illumination adjusting controller are arranged in the intelligent illumination cabinet in the step S2, and the static bypass switch is used for automatically switching to bypass operation through the static bypass switch after the failure of the failure illumination adjusting controller.
4. The control method for the intelligent lighting cabinet and the matched terminal control box according to claim 3, wherein the control method comprises the following steps: the illumination regulation controller performs sampling analysis on input and output power supplies, combines a flexible alternating current transmission technology, a flexible reactive power compensation technology based on a space voltage loss PWM generation technology, an automatic detection harmonic elimination function, an instantaneous overcurrent and surge suppression technology, a matched built-in astronomical clock control function and an external light sensor to realize a time light control function.
5. The control method for the intelligent lighting cabinet and the matched terminal control box according to claim 1, wherein the control method comprises the following steps: a power supply circuit breaker and a lighting loop control switch are arranged in the terminal control box in the step S1; the terminal control box is provided with two paths of incoming line power circuit breakers, wherein one path of power supply is led from an intelligent control power supply of the intelligent lighting cabinet, the other path of power supply is led from commercial power of the intelligent lighting cabinet, and power supply switching is carried out through a lighting loop control switch on the terminal control box.
6. The control method for the intelligent lighting cabinet and the matched terminal control box according to claim 1, wherein the control method comprises the following steps: a control element is arranged in the terminal control box in the step S1; the control element adopts a solid-state relay.
7. The utility model provides a controlling means that is used for intelligent lighting cabinet and supporting terminal control case which characterized in that includes: the intelligent lighting system comprises a light sensor, an intelligent lighting cabinet and a terminal control box; the light sensor is arranged outside the power distribution room and is convenient for lighting; the intelligent lighting cabinet is arranged in a low-voltage power distribution center; the terminal control box is arranged outdoors; the light sensation sensor, the intelligent lighting cabinet and the terminal control box are fixedly connected through electric wires.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010847683.XA CN112153772A (en) | 2020-08-21 | 2020-08-21 | Control method and device for intelligent lighting cabinet and matched terminal control box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010847683.XA CN112153772A (en) | 2020-08-21 | 2020-08-21 | Control method and device for intelligent lighting cabinet and matched terminal control box |
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| CN112153772A true CN112153772A (en) | 2020-12-29 |
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| CN202010847683.XA Pending CN112153772A (en) | 2020-08-21 | 2020-08-21 | Control method and device for intelligent lighting cabinet and matched terminal control box |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2311041Y (en) * | 1997-01-21 | 1999-03-17 | 赖康生 | Microcomputerized switching time controller adapted for street lamp and advertisement lamp specially |
| CN201639813U (en) * | 2009-11-20 | 2010-11-17 | 上海电器科学研究所（集团）有限公司 | Intelligent lighting control cabinet |
| CN103066610A (en) * | 2012-12-23 | 2013-04-24 | 上海市电力公司 | Flexible reactive compensation device |
| CN105682330A (en) * | 2016-03-03 | 2016-06-15 | 青岛亿联信息科技股份有限公司 | Intelligent illuminating system for usual illumination and emergency illumination |
| CN105896350A (en) * | 2016-06-17 | 2016-08-24 | 国网山东省电力公司东明县供电公司 | Double-power intelligent low voltage switchgear with automatic temperature control and heat dissipation function |
-
2020
- 2020-08-21 CN CN202010847683.XA patent/CN112153772A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2311041Y (en) * | 1997-01-21 | 1999-03-17 | 赖康生 | Microcomputerized switching time controller adapted for street lamp and advertisement lamp specially |
| CN201639813U (en) * | 2009-11-20 | 2010-11-17 | 上海电器科学研究所（集团）有限公司 | Intelligent lighting control cabinet |
| CN103066610A (en) * | 2012-12-23 | 2013-04-24 | 上海市电力公司 | Flexible reactive compensation device |
| CN105682330A (en) * | 2016-03-03 | 2016-06-15 | 青岛亿联信息科技股份有限公司 | Intelligent illuminating system for usual illumination and emergency illumination |
| CN105896350A (en) * | 2016-06-17 | 2016-08-24 | 国网山东省电力公司东明县供电公司 | Double-power intelligent low voltage switchgear with automatic temperature control and heat dissipation function |
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Application publication date: 20201229 |