CN110267417B - Explosion-proof loop control device and explosion-proof lamp - Google Patents

Explosion-proof loop control device and explosion-proof lamp Download PDF

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CN110267417B
CN110267417B CN201910497391.5A CN201910497391A CN110267417B CN 110267417 B CN110267417 B CN 110267417B CN 201910497391 A CN201910497391 A CN 201910497391A CN 110267417 B CN110267417 B CN 110267417B
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module
resistor
capacitor
power supply
phase
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CN110267417A (en
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周明杰
谢征文
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Oceans King Lighting Science and Technology Co Ltd
Oceans King Dongguan Lighting Technology Co Ltd
Shenzhen Oceans King Lighting Engineering Co Ltd
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Oceans King Lighting Science and Technology Co Ltd
Oceans King Dongguan Lighting Technology Co Ltd
Shenzhen Oceans King Lighting Engineering Co Ltd
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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10Controlling the light source
    • H05B47/105Controlling the light source in response to determined parameters
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10Controlling the light source
    • H05B47/175Controlling the light source by remote control
    • H05B47/19Controlling the light source by remote control via wireless transmission

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

The invention belongs to the technical field of electronics, and discloses an explosion-proof loop control device and an explosion-proof lamp, which comprise a current detection module, a voltage detection module, an electric energy metering module, a wireless communication module, a control module, a driving module and a switch module; the current detection module detects the input current of the alternating current power supply to generate a current detection signal; the voltage detection module detects the input voltage of the alternating current power supply to generate a voltage detection signal; the electric energy metering module generates a metering signal according to the current detection signal and the voltage detection signal; the wireless communication module transmits a wireless control instruction and state information; the control module generates a control signal according to the wireless control instruction and the metering signal and generates state information according to the metering signal; the driving module generates a driving signal according to the control signal; the switch module is used for connecting or disconnecting a loop where the lamp is located according to the driving signal; due to the fact that the wireless communication module is arranged, remote control and remote monitoring of working states are achieved.

Description

Explosion-proof loop control device and explosion-proof lamp
Technical Field
The invention belongs to the technical field of electronics, and particularly relates to an explosion-proof loop control device and an explosion-proof lamp.
Background
The existing explosion-proof loop control device generates a key signal according to user input through a key module; the electric energy metering module generates the metering signal according to the current detection signal and the voltage detection signal; the control module generates the control signal according to the key signal and the metering signal to control a loop where the lamp is located; because it does not have the communication function, so do not possess the remote control function, the user also can't monitor the operating condition in explosion-proof return circuit at the host computer.
Therefore, the conventional loop control device has the defect that the remote control and the remote monitoring of the working state cannot be carried out due to no communication function.
Disclosure of Invention
The invention provides an explosion-proof loop control device and an explosion-proof lamp, and aims to solve the problem that the traditional explosion-proof loop control device cannot be remotely controlled and remotely monitored in working state due to no communication function.
The present invention is achieved as described above, and an explosion-proof circuit control apparatus includes:
lamps and lanterns with alternating current power supply's live wire with alternating current power supply's zero line is connected, its characterized in that, explosion-proof loop control device includes:
the current detection module is used for detecting the input current of the alternating current power supply to generate a current detection signal;
the voltage detection module is used for detecting the input voltage of the alternating current power supply to generate a voltage detection signal;
the electric energy metering module is connected with the current detection module and the voltage detection module and is used for generating a metering signal according to the current detection signal and the voltage detection signal;
the wireless communication module is used for forwarding the wireless control instruction and the state information;
the control module is connected with the electric energy metering module and the wireless communication module and used for generating a control signal according to the wireless control instruction and the metering signal and generating the state information according to the metering signal;
the driving module is connected with the control module and used for generating a driving signal according to the control signal;
and the switch module is connected with the driving module and used for switching on or off a loop where the lamp is located according to the driving signal.
In one embodiment, the explosion-proof circuit control device further includes:
the alternating current-direct current conversion module is used for generating a first power supply according to the alternating current power supply so as to supply power to the driving module;
and the direct current conversion module is connected with the alternating current-direct current conversion module and used for generating a second power supply according to the first power supply so as to supply power to the electric energy metering module, the control module and the wireless communication module.
In one embodiment, the ac power supply is a three-phase power supply, and the voltage detection module includes an a-phase voltage detection module, a B-phase voltage detection module, and a C-phase voltage detection module; the A phase voltage detection module, the B phase voltage detection module and the C phase voltage detection module comprise voltage detection units;
the voltage detection unit comprises a voltage transformer, a first capacitor, a second capacitor, a first resistor, a second resistor, a third resistor and a fourth resistor;
the first input end of the voltage transformer and the second input end of the voltage transformer jointly form the input end of the alternating current power supply of the voltage detection unit, the first output end of the voltage transformer is connected with the first end of the first resistor and the first end of the third resistor, the second output end of the voltage transformer is connected with the first end of the second resistor and the first end of the fourth resistor, the second end of the third resistor and the first end of the first capacitor together form a first voltage detection signal output end of the voltage detection unit, the second end of the fourth resistor and the first end of the second capacitor together form a second voltage detection signal output end of the voltage detection unit, the second end of the first resistor, the second end of the second resistor, the second end of the first capacitor and the second end of the second capacitor are connected to a power ground in common.
In one embodiment, the ac power supply is a three-phase power supply, and the current detection module includes an a-phase current detection module, a B-phase current detection module, and a C-phase current detection module; the A-phase current detection module, the B-phase current detection module and the C-phase current detection module comprise current detection units;
the current detection unit comprises a current transformer, a third capacitor, a fourth capacitor, a fifth resistor, a sixth resistor, a seventh resistor and an eighth resistor;
the first input end of the current transformer is connected with the first end of the fifth resistor, the second end of the fifth resistor and the second input end of the current transformer jointly form the input end of the alternating current power supply of the current detection unit, the first output end of the current transformer is connected with the first end of the sixth resistor and the first end of the seventh resistor, the second output end of the current transformer is connected with the second end of the sixth resistor and the first end of the eighth resistor, the second end of the seventh resistor and the first end of the third capacitor together form a first current detection signal output end of the current detection unit, the second end of the eighth resistor and the first end of the fourth capacitor jointly form a second current detection signal output end of the current detection unit, and the second end of the third capacitor and the second end of the fourth capacitor are connected to a power ground in a shared mode.
In one embodiment, the ac power supply is a three-phase power supply, and the driving module includes three driving units, where the driving units include a first transistor, a second transistor, a first transient voltage suppression diode, a second transient voltage suppression diode, a fifth capacitor, a ninth resistor, a tenth resistor, and an eleventh resistor;
the base electrode of the first triode and the first end of the tenth resistor jointly form a first control signal input end of the driving unit, the collector electrode of the first triode and the first end of the first transient voltage suppression diode jointly form a first driving signal output end of the driving unit,
the base electrode of the second triode and the first end of the eleventh resistor jointly form a second control signal input end of the driving unit, the collector electrode of the second triode and the first end of the second transient voltage suppression diode jointly form a second driving signal output end of the driving unit,
the second end of the first transient voltage suppression diode, the second end of the second transient voltage suppression diode, the first end of the ninth resistor and the first end of the fifth capacitor jointly form a third driving signal output end of the driving unit, the second end of the ninth resistor is connected with a first power supply, and the second end of the fifth capacitor, the emitter of the first triode, the emitter of the second triode, the second end of the tenth resistor and the second end of the eleventh resistor are connected to a power ground in common.
In one embodiment, the ac power supply is a three-phase power supply, and the switch module includes an a-phase switch module, a B-phase switch module, and a C-phase switch module that correspond to the three driving units one to one; the A-phase switch module, the B-phase switch module and the C-phase switch module comprise switch units;
the switching unit includes a magnetic latching relay;
the first control signal input end of the magnetic latching relay, the second control signal input end of the magnetic latching relay and the grounding end of the magnetic latching relay jointly form the control signal input end of the switch unit, and the first output controlled end of the magnetic latching relay and the second output controlled end of the magnetic latching relay jointly form the output end of the switch module.
In one embodiment, the metering module comprises an electric energy metering chip, a sixth capacitor, a seventh capacitor, an eighth capacitor, a ninth capacitor and a twelfth resistor;
the power end of the electric energy metering chip, the first end of the sixth capacitor, the first end of the seventh capacitor and the first end of the twelfth resistor are connected to a second power supply in common, the second end of the twelfth resistor is connected with the reset end of the electric energy metering chip, the first positive current input end of the electric energy metering chip, the first negative current input end of the electric energy metering chip, the second positive current input end of the electric energy metering chip, the second negative current input end of the electric energy metering chip, the third positive current input end of the electric energy metering chip and the third negative current input end of the electric energy metering chip form a current detection signal input end of the metering module in common, and the first positive voltage input end of the electric energy metering chip, the first negative voltage input end of the electric energy metering chip, the second negative voltage input end, The second negative voltage input end of the electric energy metering chip, the third positive voltage input end of the electric energy metering chip and the third negative voltage input end of the electric energy metering chip jointly constitute the voltage detection signal input end of the metering module, the serial data input end of the electric energy metering chip and the serial data output end of the electric energy metering chip jointly constitute the metering signal output end of the metering module, the external capacitor end of the electric energy metering chip and the first end of the eighth capacitor and the first end of the ninth capacitor are connected, the grounding end of the electric energy metering chip, the second end of the sixth capacitor, the second end of the seventh capacitor, the second end of the eighth capacitor and the second end of the ninth capacitor are jointly connected to a power supply ground.
In one embodiment, the control module comprises a microprocessor;
the power supply end of the microprocessor is connected with a second power supply, a first data input-output end of the microprocessor and a second data input-output end of the microprocessor jointly form a metering signal input end of the control module, a third data input-output end of the microprocessor, a fourth data input-output end of the microprocessor and a fifth data input-output end of the microprocessor jointly form a communication signal input-output end of the control module, a sixth data input-output end of the microprocessor, a seventh data input-output end of the microprocessor, an eighth data input-output end of the microprocessor, a ninth data input-output end of the microprocessor, a tenth data input-output end of the microprocessor and an eleventh data input-output end of the microprocessor jointly form a control signal output end of the control module, and the grounding end of the microprocessor is connected with the power ground.
The embodiment of the invention also discloses an explosion-proof lamp, which comprises the explosion-proof loop control device.
The power supply device comprises a current detection module, a voltage detection module, an electric energy metering module, a wireless communication module, a control module, a driving module and a switch module; the current detection module detects the input current of the alternating current power supply to generate a current detection signal; the voltage detection module detects the input voltage of the alternating current power supply to generate a voltage detection signal; the electric energy metering module generates a metering signal according to the current detection signal and the voltage detection signal; the wireless communication module transmits a wireless control instruction and state information; the control module generates a control signal according to the wireless control instruction and the metering signal and generates state information according to the metering signal; the driving module generates a driving signal according to the control signal; the switch module is used for connecting or disconnecting a loop where the lamp is located according to the driving signal; due to the fact that the wireless communication module is arranged, remote control and remote monitoring of working states are achieved.
Drawings
In order to more clearly illustrate the technical invention in the embodiments of the present invention, the drawings 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 other drawings can be obtained by those skilled in the art without inventive efforts.
Fig. 1 is a block diagram of an explosion-proof circuit control device according to an embodiment of the present invention;
fig. 2 is another block diagram of an explosion-proof circuit control device according to an embodiment of the present invention;
fig. 3 is a circuit diagram of an exemplary current detection unit of the explosion-proof loop control device according to an embodiment of the present invention;
fig. 4 is a circuit diagram of an exemplary voltage detection unit of the explosion-proof circuit control device according to an embodiment of the present invention;
fig. 5 is a schematic circuit diagram of an exemplary circuit configuration of a driving unit and a switching unit of the explosion-proof circuit control apparatus according to an embodiment of the present invention;
fig. 6 is a circuit diagram illustrating an example of an electric energy metering module and a control module of an explosion-proof loop control device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 shows a module structure of an explosion-proof circuit control device provided in an embodiment of the present invention, and for convenience of description, only the parts related to the embodiment of the present invention are shown, and detailed descriptions are as follows:
the explosion-proof loop control device comprises a current detection module 01, a voltage detection module 02, an electric energy metering module 03, a wireless communication module 04, a control module 05, a driving module 06 and a switch module 07.
The current detection module 01 is used for detecting the input current of the alternating current power supply to generate a current detection signal; the voltage detection module 02 is used for detecting the input voltage of the alternating current power supply to generate a voltage detection signal; the electric energy metering module 03 is connected with the current detection module 01 and the voltage detection module 02 and is used for generating a metering signal according to the current detection signal and the voltage detection signal; the wireless communication module 04 is used for forwarding a wireless control instruction and state information; the control module 05 is connected with the electric energy metering module 03 and the wireless communication module 04 and is used for generating a control signal according to the wireless control instruction and the metering signal and generating state information according to the metering signal; the driving module 06 is connected with the control module 05 and is used for generating a driving signal according to the control signal; the switch module 07 is connected with the driving module 06 and is used for switching on or switching off a loop where the lamp is located according to the driving signal.
As shown in fig. 2, the explosion-proof loop control device further includes an ac/dc conversion module 08 and a dc/dc conversion module 09.
The alternating current-direct current conversion module 08 is used for generating a first power supply according to the alternating current power supply so as to supply power to the driving module 06; the direct current conversion module 09 is connected to the alternating current-direct current conversion module 08, and is configured to generate a second power supply according to the first power supply to supply power to the electric energy metering module 03, the control module 05, and the wireless communication module 04.
The alternating current power supply is a three-phase power supply, the three-phase power supply comprises an A-phase power supply, a B-phase power supply and a C-phase power supply, and the alternating current-direct current conversion module 08 comprises an A-phase direct current conversion module 08, a B-phase direct current conversion module 08 and a C-phase direct current conversion module 08.
The a-phase dc conversion module 08 performs power conversion on the a-phase power supply to generate a first power supply. The B-phase dc conversion module 08 performs power conversion on the B-phase power supply to generate a first power supply. The C-phase dc conversion module 08 performs power conversion on the C-phase power supply to generate a first power supply.
The A-intersection direct current conversion module 08, the B-intersection direct current conversion module 08 and the C-intersection direct current conversion module 08 all comprise AC-DC flyback power supply modules.
The alternating current power supply is a three-phase power supply, and the voltage detection module 02 comprises an A-phase voltage detection module 02, a B-phase voltage detection module 02 and a C-phase voltage detection module 02.
The a-phase voltage detection module 02 detects the voltage of the a-phase power supply. The B-phase voltage detection module 02 detects the voltage of the B-phase power supply. The C-phase voltage detection module 02 detects the voltage of the C-phase power supply.
The A-phase voltage detection module 02, the B-phase voltage detection module 02 and the C-phase voltage detection module 02 all comprise voltage detection units; fig. 3 shows an exemplary circuit structure of a voltage detection unit of an explosion-proof loop control device provided in an embodiment of the present invention, and for convenience of description, only the parts related to the embodiment of the present invention are shown, and detailed descriptions are as follows:
the voltage detection unit comprises a voltage transformer T1, a first capacitor C1, a second capacitor C2, a first resistor R1, a second resistor R2, a third resistor R3 and a fourth resistor R4.
A first input end of a voltage transformer T1 and a second input end of a voltage transformer T1 jointly form an ac power supply input end of the voltage detection unit, a first output end of a voltage transformer T1 is connected with a first end of a first resistor R1 and a first end of a third resistor R3, a second output end of a voltage transformer T1 is connected with a first end of a second resistor R2 and a first end of a fourth resistor R4, a second end of the third resistor R3 and a first end of a first capacitor C1 jointly form a first voltage detection signal output end of the voltage detection unit, a second end of a fourth resistor R4 and a first end of a second capacitor C2 jointly form a second voltage detection signal output end of the voltage detection unit, and a second end of the first resistor R1, a second end of the second resistor R2, a second end of the first capacitor C1 and a second end of the second capacitor C2 are jointly connected to a power ground.
The alternating current power supply is a three-phase power supply, and the current detection module 01 comprises an A-phase current detection module 01, a B-phase current detection module 01 and a C-phase current detection module 01.
The a-phase current detection module 01 detects the current of the a-phase power supply. The B-phase current detection module 01 detects the current of the B-phase power supply. The C-phase current detection module 01 detects the current of the C-phase power supply.
The A-phase current detection module 01, the B-phase current detection module 01 and the C-phase current detection module 01 comprise current detection units; fig. 4 shows an exemplary circuit structure of a voltage detection unit of an explosion-proof loop control device provided in an embodiment of the present invention, and for convenience of description, only the parts related to the embodiment of the present invention are shown, and detailed descriptions are as follows:
the current detection unit comprises a current transformer T2, a third capacitor C3, a fourth capacitor C4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7 and an eighth resistor R8.
A first input terminal of the current transformer T2 is connected to a first terminal of the fifth resistor R5, a second terminal of the fifth resistor R5 and a second input terminal of the current transformer T2 jointly constitute an ac power supply input terminal of the current detection unit, a first output terminal of the current transformer T2 is connected to a first terminal of the sixth resistor R6 and a first terminal of the seventh resistor R7, a second output terminal of the current transformer T2 is connected to a second terminal of the sixth resistor R6 and a first terminal of the eighth resistor R8, a second terminal of the seventh resistor R7 and a first terminal of the third capacitor C3 jointly constitute a first current detection signal output terminal of the current detection unit, a second terminal of the eighth resistor R8 and a first terminal of the fourth capacitor C4 jointly constitute a second current detection signal output terminal of the current detection unit, and a second terminal of the third capacitor C3 and a second terminal of the fourth capacitor C4 are jointly connected to a power ground.
The ac power supply is a three-phase power supply, and the driving module 06 includes three driving units, which are an a-phase driving unit, a B-phase driving unit, and a C-phase driving unit, respectively. The control signals include an a-phase control signal, a B-phase control signal, and a C-phase control signal.
Wherein the A-phase driving unit generates an A-phase driving signal according to the A-phase control signal. The B-phase driving unit generates a B-phase driving signal according to the B-phase control signal. The C-phase driving unit generates a C-phase driving signal according to the C-phase control signal.
The switch module 07 includes an a-phase switch module 07, a B-phase switch module 07, and a C-phase switch module 07 that are in one-to-one correspondence with the three drive units.
The a-phase switch module 07 connects or disconnects the a-phase power supply circuit where the lamp is located according to the a-phase driving signal. And the B-phase switch module 07 is used for switching on or off a B-phase power supply loop where the lamp is located according to the B-phase driving signal. The C-phase switch module 07 turns on or off the C-phase power supply circuit in which the lamp is located according to the C-phase driving signal.
The a-phase switch module 07, the B-phase switch module 07, and the C-phase switch module 07 each include a switch unit. Fig. 5 shows an exemplary circuit structure of a driving unit and a switching unit of an explosion-proof loop control device provided in an embodiment of the present invention, and for convenience of description, only the parts related to the embodiment of the present invention are shown, and detailed descriptions are as follows:
the driving unit includes a first transistor Q1, a second transistor Q2, a first transient voltage suppression diode TVS1, a second transient voltage suppression diode TVS2, a fifth capacitor C5, a ninth resistor R9, a tenth resistor R10, and an eleventh resistor R11.
A base of the first transistor Q1 and a first end of the tenth resistor R10 together form a first control signal input terminal of the driving unit, a collector of the first transistor Q1 and a first end of the first transient voltage suppression diode TVS1 together form a first driving signal output terminal of the driving unit, a base of the second transistor Q2 and a first end of the eleventh resistor R11 together form a second control signal input terminal of the driving unit, a collector of the second transistor Q2 and a first end of the second transient voltage suppression diode TVS2 together form a second driving signal output terminal of the driving unit, a second end of the first transient voltage suppression diode TVS1, a second end of the second transient voltage suppression diode TVS2, a first end of the ninth resistor R9 and a first end of the fifth capacitor C5 together form a third driving signal output terminal of the driving unit, a second end of the ninth resistor R9 is connected to the first power supply, the second terminal of the fifth capacitor C5, the emitter of the first transistor Q1, the emitter of the second transistor Q2, the second terminal of the tenth resistor R10, and the second terminal of the eleventh resistor R11 are commonly connected to the power ground.
The switching unit comprises a magnetic latching relay RJ 1.
The first control signal input terminal a of the magnetic latching relay RJ1, the second control signal input terminal B of the magnetic latching relay RJ1 and the ground terminal GND of the magnetic latching relay RJ1 together form a control signal input terminal of the switch unit, and the first output controlled terminal R1 of the magnetic latching relay RJ1 and the second output controlled terminal R2 of the magnetic latching relay RJ1 together form an output terminal of the switch module 07.
Fig. 6 shows an exemplary circuit structure of the control module 05 and the metering module of the explosion-proof loop control device according to the embodiment of the present invention, and for convenience of description, only the parts related to the embodiment of the present invention are shown, and the details are as follows:
the metering module comprises an electric energy metering chip U1, a sixth capacitor C6, a seventh capacitor C7, an eighth capacitor C8, a ninth capacitor C9 and a twelfth resistor R12.
A power supply terminal VCC of the electric energy metering chip U1, a first terminal of a sixth capacitor C6, a first terminal of a seventh capacitor C7 and a first terminal of a twelfth resistor R12 are commonly connected to a second power supply VBB, a second terminal of a twelfth resistor R12 is connected to a RESET terminal RESET of the electric energy metering chip U1, a first positive current input terminal V1P of the electric energy metering chip U1, a first negative current input terminal V1N of the electric energy metering chip U1, a second positive current input terminal V3P of the electric energy metering chip U1, a second negative current input terminal V3N of the electric energy metering chip U1, a third positive current input terminal V5P of the electric energy metering chip U1 and a third negative current input terminal V5N of the electric energy metering chip U1 together form a current detection signal input terminal of the metering module, a first positive voltage V2P of the electric energy metering chip U1, a first negative voltage input terminal V2N of the electric energy metering chip U2, and a second positive voltage 8653 of the electric energy metering chip U358427 constitute a current input terminal of the metering module, and a, The second negative electrode voltage input end V4N of the electric energy metering chip U1, the third positive electrode voltage input end V6P of the electric energy metering chip U1 and the third negative electrode voltage input end V6N of the electric energy metering chip U1 jointly form a voltage detection signal input end of the metering module, the serial data input end DIN of the electric energy metering chip U1 and the serial data output end DOUT of the electric energy metering chip U1 jointly form a metering signal output end of the metering module, an external capacitor end REFCAP of the electric energy metering chip U1 is connected with a first end of an eighth capacitor C8 and a first end of a ninth capacitor C9, and a ground end GND of the electric energy metering chip U1, a second end of a sixth capacitor C6, a second end of a seventh capacitor C7, a second end of an eighth capacitor C8 and a second end of the ninth capacitor C9 are commonly connected to a power ground.
The control module 05 includes a microprocessor U2.
A power supply terminal VDD of the microprocessor U2 is connected to the second power supply VBB, a first data input/output terminal PA19 of the microprocessor U2 and a second data input/output terminal PA18 of the microprocessor U2 together constitute a metering signal input terminal of the control module 05, a third data input/output terminal PA11 of the microprocessor U2, a fourth data input/output terminal PB10 of the microprocessor U2 and a fifth data input/output terminal PB11 of the microprocessor U2 together constitute a communication signal input/output terminal of the control module 05, a sixth data input/output terminal PA05 of the microprocessor U2, a seventh data input/output terminal PA06 of the microprocessor U2, an eighth data input/output terminal PA07 of the microprocessor U2, a ninth data input/output terminal PA22 of the microprocessor U2, a tenth data input/output terminal PA23 of the microprocessor U2 and an eleventh data input/output terminal 27 of the microprocessor U2 together constitute a control signal output terminal of the control module 05, the ground GND of the microprocessor U2 is connected to the power ground.
The following further description of fig. 3 to 6 is made in conjunction with the working principle:
a voltage transformer T1 in the a-phase voltage detection module 02 performs voltage detection on the a-phase power supply to generate an original a-phase voltage detection signal, and the original a-phase voltage detection signal is filtered by a first resistor R1 to a fourth resistor R4 and a first capacitor C1 to a second capacitor C2 to generate an a-phase voltage detection signal; in the same way, the B-phase voltage detection module 02 and the C-phase voltage detection module 02 generate a B-phase voltage detection signal and a C-phase voltage detection signal, respectively. The a-phase voltage detection signal, the B-phase voltage detection signal, and the C-phase voltage detection signal collectively constitute a voltage detection signal.
A current transformer T2 in the a-phase current detection module 01 performs current detection on the a-phase power supply to generate an original a-phase current detection signal, and the original a-phase current detection signal is filtered by a sixth resistor R6 to an eighth resistor R8 and a third capacitor C3 to a fourth capacitor C4 to generate an a-phase current detection signal; in the same way, the phase-B current detection module 01 and the phase-C current detection module 01 respectively generate a phase-B current detection signal and a phase-C current detection signal. The a-phase current detection signal, the B-phase current detection signal, and the C-phase current detection signal together constitute a current detection signal.
The voltage detection signals are input to a first positive current input end V1P of the electric energy metering chip U1, a first negative current input end V1N of the electric energy metering chip U1, a second positive current input end V3P of the electric energy metering chip U1, a second negative current input end V3N of the electric energy metering chip U1, a third positive current input end V5P of the electric energy metering chip U1 and a third negative current input end V5N of the electric energy metering chip U1;
the current detection signals are input to a first positive voltage input end V2P of the electric energy metering chip U1, a first negative voltage input end V2N of the electric energy metering chip U1, a second positive voltage input end V4P of the electric energy metering chip U1, a second negative voltage input end V4N of the electric energy metering chip U1, a third positive voltage input end V6P of the electric energy metering chip U1 and a third negative voltage input end V6N of the electric energy metering chip U1; the electric energy metering chip U1 generates metering signals according to the voltage detection signals and the current detection signals and outputs the metering signals to a first data input and output end PA19 of the microprocessor U2 and a second data input and output end PA18 of the microprocessor U2 from a serial data input end DIN of the electric energy metering chip U1 and a serial data output end DOUT of the electric energy metering chip U1.
The wireless communication module 04 forwards the wireless control command, and the third data input/output terminal PA11 of the microprocessor U2, the fourth data input/output terminal PB10 of the microprocessor U2, and the fifth data input/output terminal PB11 of the microprocessor U2 receive the wireless control command, and generate control signals according to the wireless control command and the metering signal, and output the control signals from the sixth data input/output terminal PA05 of the microprocessor U2 to the eleventh data input/output terminal PA27 of the microprocessor U2 to the driving module 06. Meanwhile, the microprocessor U2 generates status information according to the metering signal and sends the status information to the wireless communication module 04.
The first triode Q1 and the second triode Q2 in the A-phase driving module 06 amplify the A-phase control signal in the control signal to generate an A-phase driving signal, and the magnetic latching relay RJ1 in the A-phase switching unit connects or disconnects the A-phase power circuit where the lamp is located according to the A-phase driving signal. By analogy, the working principle of the B-phase driving module 06 and the C-phase driving module 06 can be obtained, the B-phase switching module 07 is used for connecting or disconnecting the B-phase power supply loop where the lamp is located according to the B-phase driving signal, and the C-phase switching module 07 is used for connecting or disconnecting the C-phase power supply loop where the lamp is located according to the C-phase driving signal.
The embodiment of the invention also provides an explosion-proof lamp which comprises the explosion-proof loop control device.
The power supply device comprises a current detection module, a voltage detection module, an electric energy metering module, a wireless communication module, a control module, a driving module and a switch module; the current detection module detects the input current of the alternating current power supply to generate a current detection signal; the voltage detection module detects the input voltage of the alternating current power supply to generate a voltage detection signal; the electric energy metering module generates a metering signal according to the current detection signal and the voltage detection signal; the wireless communication module transmits a wireless control instruction and state information; the control module generates a control signal according to the wireless control instruction and the metering signal and generates state information according to the metering signal; the driving module generates a driving signal according to the control signal; the switch module is used for connecting or disconnecting a loop where the lamp is located according to the driving signal; due to the fact that the wireless communication module is arranged, remote control and remote monitoring of working states are achieved.
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. The utility model provides an explosion-proof loop control device, lamps and lanterns with alternating current power supply's live wire with alternating current power supply's zero line is connected which characterized in that, explosion-proof loop control device includes:
the current detection module is used for detecting the input current of the alternating current power supply to generate a current detection signal;
the voltage detection module is used for detecting the input voltage of the alternating current power supply to generate a voltage detection signal;
the electric energy metering module is connected with the current detection module and the voltage detection module and is used for generating a metering signal according to the current detection signal and the voltage detection signal;
the wireless communication module is used for forwarding the wireless control instruction and the state information;
the control module is connected with the electric energy metering module and the wireless communication module and used for generating a control signal according to the wireless control instruction and the metering signal and generating the state information according to the metering signal;
the driving module is connected with the control module and used for generating a driving signal according to the control signal;
the switch module is connected with the driving module and used for switching on or off a loop where the lamp is located according to the driving signal;
the alternating current power supply is a three-phase power supply, the driving module comprises three driving units, and each driving unit comprises a first triode, a second triode, a first transient voltage suppression diode, a second transient voltage suppression diode, a fifth capacitor, a ninth resistor, a tenth resistor and an eleventh resistor;
the base of the first triode and the first end of the tenth resistor jointly form a first control signal input end of the driving unit, the collector of the first triode and the first end of the first transient voltage suppression diode jointly form a first driving signal output end of the driving unit, the base of the second triode and the first end of the eleventh resistor jointly form a second control signal input end of the driving unit, the collector of the second triode and the first end of the second transient voltage suppression diode jointly form a second driving signal output end of the driving unit, the second end of the first transient voltage suppression diode, the second end of the second transient voltage suppression diode, the first end of the ninth resistor and the first end of the fifth capacitor jointly form a third driving signal output end of the driving unit, a second end of the ninth resistor is connected to a first power supply, and a second end of the fifth capacitor, an emitter of the first triode, an emitter of the second triode, a second end of the tenth resistor, and a second end of the eleventh resistor are commonly connected to a power ground.
2. The explosion-proof circuit control apparatus of claim 1 further comprising:
the alternating current-direct current conversion module is used for generating a first power supply according to the alternating current power supply so as to supply power to the driving module;
and the direct current conversion module is connected with the alternating current-direct current conversion module and used for generating a second power supply according to the first power supply so as to supply power to the electric energy metering module, the control module and the wireless communication module.
3. The explosion-proof loop control device of claim 1, wherein the ac power supply is a three-phase power supply, and the voltage detection module comprises an a-phase voltage detection module, a B-phase voltage detection module, and a C-phase voltage detection module; the A phase voltage detection module, the B phase voltage detection module and the C phase voltage detection module comprise voltage detection units;
the voltage detection unit comprises a voltage transformer, a first capacitor, a second capacitor, a first resistor, a second resistor, a third resistor and a fourth resistor;
the first input end of the voltage transformer and the second input end of the voltage transformer jointly form the input end of the alternating current power supply of the voltage detection unit, the first output end of the voltage transformer is connected with the first end of the first resistor and the first end of the third resistor, the second output end of the voltage transformer is connected with the first end of the second resistor and the first end of the fourth resistor, the second end of the third resistor and the first end of the first capacitor together form a first voltage detection signal output end of the voltage detection unit, the second end of the fourth resistor and the first end of the second capacitor together form a second voltage detection signal output end of the voltage detection unit, the second end of the first resistor, the second end of the second resistor, the second end of the first capacitor and the second end of the second capacitor are connected to a power ground in common.
4. The explosion-proof loop control device of claim 1, wherein the ac power supply is a three-phase power supply, and the current detection module comprises an a-phase current detection module, a B-phase current detection module, and a C-phase current detection module; the A-phase current detection module, the B-phase current detection module and the C-phase current detection module comprise current detection units;
the current detection unit comprises a current transformer, a third capacitor, a fourth capacitor, a fifth resistor, a sixth resistor, a seventh resistor and an eighth resistor;
the first input end of the current transformer is connected with the first end of the fifth resistor, the second end of the fifth resistor and the second input end of the current transformer jointly form the input end of the alternating current power supply of the current detection unit, the first output end of the current transformer is connected with the first end of the sixth resistor and the first end of the seventh resistor, the second output end of the current transformer is connected with the second end of the sixth resistor and the first end of the eighth resistor, the second end of the seventh resistor and the first end of the third capacitor together form a first current detection signal output end of the current detection unit, the second end of the eighth resistor and the first end of the fourth capacitor jointly form a second current detection signal output end of the current detection unit, and the second end of the third capacitor and the second end of the fourth capacitor are connected to a power ground in a shared mode.
5. The explosion-proof circuit control device according to claim 1, wherein the ac power supply is a three-phase power supply, and the switch module includes an a-phase switch module, a B-phase switch module, and a C-phase switch module that are in one-to-one correspondence with the three drive units; the A-phase switch module, the B-phase switch module and the C-phase switch module comprise switch units;
the switching unit includes a magnetic latching relay;
the first control signal input end of the magnetic latching relay, the second control signal input end of the magnetic latching relay and the grounding end of the magnetic latching relay jointly form the control signal input end of the switch unit, and the first output controlled end of the magnetic latching relay and the second output controlled end of the magnetic latching relay jointly form the output end of the switch module.
6. The explosion-proof circuit control device of claim 1, wherein said metering module comprises an electric energy metering chip, a sixth capacitor, a seventh capacitor, an eighth capacitor, a ninth capacitor and a twelfth resistor;
the power end of the electric energy metering chip, the first end of the sixth capacitor, the first end of the seventh capacitor and the first end of the twelfth resistor are connected to a second power supply in common, the second end of the twelfth resistor is connected with the reset end of the electric energy metering chip, the first positive current input end of the electric energy metering chip, the first negative current input end of the electric energy metering chip, the second positive current input end of the electric energy metering chip, the second negative current input end of the electric energy metering chip, the third positive current input end of the electric energy metering chip and the third negative current input end of the electric energy metering chip form a current detection signal input end of the metering module in common, and the first positive voltage input end of the electric energy metering chip, the first negative voltage input end of the electric energy metering chip, the second negative voltage input end, The second negative voltage input end of the electric energy metering chip, the third positive voltage input end of the electric energy metering chip and the third negative voltage input end of the electric energy metering chip jointly constitute the voltage detection signal input end of the metering module, the serial data input end of the electric energy metering chip and the serial data output end of the electric energy metering chip jointly constitute the metering signal output end of the metering module, the external capacitor end of the electric energy metering chip and the first end of the eighth capacitor and the first end of the ninth capacitor are connected, the grounding end of the electric energy metering chip, the second end of the sixth capacitor, the second end of the seventh capacitor, the second end of the eighth capacitor and the second end of the ninth capacitor are jointly connected to a power supply ground.
7. The explosion proof circuit control apparatus of claim 1 wherein said control module comprises a microprocessor;
the power supply end of the microprocessor is connected with a second power supply, a first data input-output end of the microprocessor and a second data input-output end of the microprocessor jointly form a metering signal input end of the control module, a third data input-output end of the microprocessor, a fourth data input-output end of the microprocessor and a fifth data input-output end of the microprocessor jointly form a communication signal input-output end of the control module, a sixth data input-output end of the microprocessor, a seventh data input-output end of the microprocessor, an eighth data input-output end of the microprocessor, a ninth data input-output end of the microprocessor, a tenth data input-output end of the microprocessor and an eleventh data input-output end of the microprocessor jointly form a control signal output end of the control module, and the grounding end of the microprocessor is connected with the power ground.
8. An explosion-proof lamp, characterized in that it comprises an explosion-proof circuit control device as claimed in any one of claims 1 to 7.
CN201910497391.5A 2019-06-10 2019-06-10 Explosion-proof loop control device and explosion-proof lamp Active CN110267417B (en)

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