CN210376496U - Super large current monitor - Google Patents
Super large current monitor Download PDFInfo
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- CN210376496U CN210376496U CN201920785164.8U CN201920785164U CN210376496U CN 210376496 U CN210376496 U CN 210376496U CN 201920785164 U CN201920785164 U CN 201920785164U CN 210376496 U CN210376496 U CN 210376496U
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Abstract
An ultra-large current monitor. The product comprises a current transformer and a box body, wherein the current transformer is arranged on the outer side of the box body, an ammeter, a controller, an alarm device, a power supply module and a knob are arranged in the box body, the signal input end of the ammeter is connected with the signal output end of the current transformer, the communication end of the controller is connected with the communication end of the ammeter, the alarm device is connected with the control end of the controller, and the power supply module is connected with the ammeter, the controller and the alarm device; the knob enables and disables the alarm device. The utility model is used for super large current monitor.
Description
The technical field is as follows:
the invention relates to an ultra-large current monitor.
Background art:
the instrument and equipment are basic conditions for scientific research and technical innovation and are important marks for measuring the scientific and technological development level of the country. With the rapid development of social economy and the arrival of the knowledge information era, people use instruments and equipment more and more frequently, so that the instrument management demand is greater and greater, and especially, the monitoring of the instruments and equipment with high value and large working current is more and more emphasized by people.
At present, the monitoring devices of the super-current instrument equipment with working current reaching hundreds of amperes are very few, the monitored instrument needs to be powered off during installation, the deployment time is long, the installation is inconvenient, and the requirements cannot be met when the instrument which cannot be powered off is monitored. And these devices are generally local monitoring, local display, can't be monitored in networking, use and can't meet the demands.
The invention content is as follows:
the invention aims to provide an ultra-large current monitor which is convenient to install and can be used for networking monitoring.
The above purpose is realized by the following technical scheme:
a super-large current monitor comprises a current transformer and a box body, wherein the current transformer is arranged on the outer side of the box body, an ammeter, a controller, an alarm device, a power supply module and a knob are arranged in the box body, the signal input end of the ammeter is connected with the signal output end of the current transformer, the communication end of the controller is connected with the communication end of the ammeter, the alarm device is connected with the control end of the controller, and the power supply module is connected with the ammeter, the controller and the alarm device; the knob enables and disables the alarm device.
In the ultra-large current monitor, the current transformer converts a hundred-ampere-level current signal of a power supply cable of the measured instrument into an individual-ampere-level current signal and outputs the individual-ampere-level current signal to the ammeter, and the controller continuously reads current value data in the ammeter and uploads the current value data to a remote instrument monitoring system through a wireless communication module in the controller; the controller judges the read current value, alarms the current exceeding a set threshold value and uploads alarm information to the remote instrument monitoring system.
In the ultra-large current monitor, the current transformers are of an open-close type and are directly sleeved on a power supply phase line of an instrument during installation, and the number of the current transformers is 1-3; the ammeter is a three-phase digital display ammeter with a wired communication interface, a controller reads current value data through the interface, and the three-phase digital display ammeter displays a current value in real time; the current transformer and the ammeter are electrically connected at the bottom of the box body through an aviation plug; the controller comprises a main control module, a wired communication module, a wireless communication module, a relay module and a power supply module, the controller is communicated with the ammeter through the wired communication module, is communicated with the remote instrument monitoring system through the wireless communication module, and controls the alarm device through the relay module; the alarm device is an audible and visual alarm, and is enabled and disabled by a knob, and the enabling is controlled by the controller.
The super large current monitor, the relay module include chip U6, chip U6's No. 8 pins connect electric capacity C15, chip U6's No. 5 pins connect contactor K1, chip U6's No. 1 pin connect relay K1.
The super large current monitor, wired communication module be RS485 wired communication module, wired communication module include chip U5, chip U5's No. 12 pins and No. 13 pin connecting resistance R11.
The ultra-large current monitor comprises a chip U4, a No. 6 pin and a No. 7 pin of the chip U4 are both connected with a crystal oscillator Y1, one end of the crystal oscillator Y1 is connected with a capacitor C11, the other end of the crystal oscillator Y1 is connected with a capacitor C12, the No. 24 pin of the chip U4 is connected with the resistor 16 and the resistor 15, the No. 25 pin of the chip U4 is connected with the resistor 9, the No. 29 pin of the chip U4 is connected with the resistor 10, the No. 8 pin of the chip U4 is connected with the plug connector P2, the plug connector P2 is connected with a resistor R5, a resistor R6 and a resistor R8, the No. 44 pin and the No. 41 pin of the chip U4 are both connected with a capacitor C13, the capacitor C13 is connected with the capacitor C14 in parallel, the No. 39 pin of the chip U4 is connected with the plug connector P3, the plug connector P3 is connected with a resistor R7 and a capacitor C10, and the resistor R7 is connected with a diode D2 in parallel.
The super large current monitor, wireless communication module include chip Z1, chip Z1's No. 10 pin connecting resistance R14, chip Z1's 1, No. 4 pin connecting resistance R13, resistance R14 connect resistance R13, chip Z1's No. 20 pin connecting capacitance C16, chip Z1's No. 28 pin connecting resistance R12.
The ultra-large current monitor comprises a power supply module and a power supply module, wherein the power supply module further comprises a chip U2, a pin 1 of the chip U2 is connected with the chip U1 and the chip U3, a pin 11 and a pin 9 of the chip U1 are both connected with an inductor L1, a pin 1 and a pin 3 of the chip U2 are both connected with a capacitor C7, a pin 5 of the chip U2 is connected with a capacitor C8, a pin 1 and a pin 2 of the chip U3 are connected with a capacitor C6, and a pin 3 and a pin 4 of the chip U3 are connected with a capacitor C9; a 12-number pin of the chip U1 is connected with a diode D1, the diode D1 is connected with a safety resistor F1, the safety resistor F1 is connected with a plug connector P1, a 14-number pin of the chip U1 is connected with a resistor R3, a 3-number pin of the chip U1 is connected with a capacitor C5, a 12-number pin of the chip U1 is connected with a capacitor C2 and a capacitor C1, the capacitor C2 is connected with the capacitor C1 in parallel, a 14-number pin of the chip U1 is connected with a resistor R3, a 7-number pin of the chip U1 is connected with a resistor R1, a resistor R2, a capacitor C3 and a capacitor C4, and the resistor R1 is connected with a resistor R4.
Has the advantages that:
1. the invention effectively solves the problems that the monitoring device of the super-current instrument is inconvenient to install and can not be monitored in a networking way.
The invention uses the open-close type current transformer, which is directly sleeved on the power supply phase line without being connected in series at the power supply end of the instrument, does not cause any change of the instrument, does not perform power-off operation on the instrument, uses the aviation plug for electrical connection, and is convenient to install.
The invention carries out real-time acquisition and alarm on the ultra-large current signals of the Baian level, and uploads current value data and alarm information to a remote instrument monitoring system, thereby realizing networking monitoring.
Description of the drawings:
fig. 1 is a schematic structural diagram of the product.
Fig. 2 is a schematic inside box of the ultra-large current monitor of the product.
Fig. 3 is a circuit diagram of a master control module in the product controller.
Fig. 4 is a circuit diagram of a wired communication module in the product controller.
Fig. 5 is a circuit diagram of a wireless communication module in the product controller.
Fig. 6 is a circuit diagram of a relay module in the product controller.
FIG. 7 is a circuit diagram of a power supply module in the product controller
The same symbols in the circuit diagram have connection relations.
The specific implementation mode is as follows:
the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention.
Example 1:
a super-large current monitor comprises a current transformer 1 and a box body 2, wherein the current transformer is arranged on the outer side of the box body, an ammeter 3, a controller 4, an alarm device 5, a power module 6 and a knob 7 are arranged in the box body, the signal input end of the ammeter is connected with the signal output end of the current transformer, the communication end of the controller is connected with the communication end of the ammeter, the alarm device is connected with the control end of the controller, and the power module is connected with the ammeter, the controller and the alarm device; the knob enables and disables the alarm device.
Example 2:
in the ultra-large current monitor described in embodiment 1, the current transformer converts a current signal at a level of hundreds of amperes of a power supply cable of the measured instrument into a current signal at a level of hundreds of amperes, and outputs the current signal to the ammeter, and the controller continuously reads current value data in the ammeter and uploads the current value data to a remote instrument monitoring system through a wireless communication module inside the controller; the controller judges the read current value, alarms the current exceeding a set threshold value and uploads alarm information to the remote instrument monitoring system.
Example 3:
in the ultra-large current monitor described in embodiment 1, the current transformers are of an open-close type, and are directly sleeved on a power supply phase line of an instrument during installation, and the number of the current transformers is 1-3; the ammeter is a three-phase digital display ammeter with a wired communication interface, a controller reads current value data through the interface, and the three-phase digital display ammeter displays a current value in real time; the current transformer and the ammeter are electrically connected at the bottom of the box body through an aviation plug; the controller comprises a main control module, a wired communication module, a wireless communication module, a relay module and a power supply module, the controller is communicated with the ammeter through the wired communication module, is communicated with the remote instrument monitoring system through the wireless communication module, and controls the alarm device through the relay module; the alarm device is an audible and visual alarm, and is enabled and disabled by a knob, and the enabling is controlled by the controller.
Example 4:
the monitoring device of embodiment 3, wherein the relay module includes a chip U6, a pin 8 of the chip U6 is connected to a capacitor C15, a pin 5 of the chip U6 is connected to a contactor K1, and a pin 1 of the chip U6 is connected to a relay K1.
Example 5:
the ultra-large current monitor of embodiment 3, the wired communication module is an RS485 wired communication module, the wired communication module includes a chip U5, and a pin 12 and a pin 13 of the chip U5 are connected to a resistor R11.
Example 6:
the ultra-large current monitor of embodiment 3, wherein the main control module comprises a chip U4, the pin 6 and the pin 7 of the chip U4 are both connected to a crystal oscillator Y1, one end of the crystal oscillator Y1 is connected with a capacitor C11, the other end of the crystal oscillator Y1 is connected with a capacitor C12, the No. 24 pin of the chip U4 is connected with the resistor 16 and the resistor 15, the No. 25 pin of the chip U4 is connected with the resistor 9, the No. 29 pin of the chip U4 is connected with the resistor 10, the No. 8 pin of the chip U4 is connected with the plug connector P2, the plug connector P2 is connected with a resistor R5, a resistor R6 and a resistor R8, the No. 44 pin and the No. 41 pin of the chip U4 are both connected with a capacitor C13, the capacitor C13 is connected with the capacitor C14 in parallel, the No. 39 pin of the chip U4 is connected with the plug connector P3, the plug connector P3 is connected with a resistor R7 and a capacitor C10, and the resistor R7 is connected with a diode D2 in parallel.
Example 7:
the monitoring device of embodiment 3, wherein the wireless communication module includes a chip Z1, a pin 10 of the chip Z1 is connected to a resistor R14, a pin 1 or a pin 4 of the chip Z1 is connected to a resistor R13, the resistor R14 is connected to a resistor R13, a pin 20 of the chip Z1 is connected to a capacitor C16, and a pin 28 of the chip Z1 is connected to a resistor R12.
Example 8:
the monitoring device for the ultra-large current of embodiment 6, wherein the power supply module further includes a chip U2, a pin 1 of the chip U2 is connected to the chip U1 and the chip U3, a pin 11 and a pin 9 of the chip U1 are both connected to an inductor L1, a pin 1 and a pin 3 of the chip U2 are both connected to a capacitor C7, a pin 5 of the chip U2 is connected to a capacitor C8, a pin 1 and a pin 2 of the chip U3 are connected to a capacitor C6, and a pin 3 and a pin 4 of the chip U3 are connected to a capacitor C9; a 12-number pin of the chip U1 is connected with a diode D1, the diode D1 is connected with a safety resistor F1, the safety resistor F1 is connected with a plug connector P1, a 14-number pin of the chip U1 is connected with a resistor R3, a 3-number pin of the chip U1 is connected with a capacitor C5, a 12-number pin of the chip U1 is connected with a capacitor C2 and a capacitor C1, the capacitor C2 is connected with the capacitor C1 in parallel, a 14-number pin of the chip U1 is connected with a resistor R3, a 7-number pin of the chip U1 is connected with a resistor R1, a resistor R2, a capacitor C3 and a capacitor C4, and the resistor R1 is connected with a resistor R4.
Example 9:
in the ultra-large current monitor described in the above embodiment, the current transformer converts the hundreds ampere level current signal of the power supply cable of the measured instrument into the individual ampere level current signal, and outputs the individual ampere level current signal to the ammeter. The controller continuously reads the current value data in the ammeter and uploads the current value data to a remote instrument monitoring system through a wireless communication module in the controller. Meanwhile, the controller judges the read current value, alarms the current exceeding a set threshold value, and uploads alarm information to a remote instrument monitoring system.
The current transformer is of an open-close type, and is directly sleeved on an instrument power supply A, B, C phase line during installation, so that power-off operation of the instrument is avoided.
The ammeter is a three-phase digital display ammeter with an RS485 communication interface, the controller reads current value data through the interface, and a display screen of the ammeter penetrates through a window on a door plate of the box body to face outwards to display A, B, C three-phase current values in real time.
The current transformer and the ammeter are electrically connected at the bottom of the box body through the aviation plug, so that quick plugging and unplugging are realized, and the on-site deployment time is saved.
The controller comprises an MCU module, an RS485 module, a Zigbee module, a relay module and a power supply module, the controller is in wired communication with the ammeter through the RS485 module, is in wireless communication with the remote instrument monitoring system through the Zigbee module, and controls the alarm device through the relay module.
The alarm device is an audible and visual alarm, the light-emitting end of the audible and visual alarm penetrates through a window on a door plate of the box body and faces outwards, the alarm is enabled when the knob is in a normal position, the alarm is controlled by the controller, the alarm is disabled when the knob is in a maintenance position, and the alarm is turned off.
The above description is only one preferred embodiment of the present invention and is not intended to limit the present invention. It should be noted that, for those skilled in the art, various equivalent substitutions and modifications can be made without departing from the principle of the present invention, and these equivalent substitutions and modifications should also be construed as the protection scope of the present invention.
Claims (8)
1. The monitor for the ultra-large current comprises a current transformer and a box body, and is characterized in that the current transformer is arranged on the outer side of the box body, an ammeter, a controller, an alarm device, a power module and a knob are arranged in the box body, the signal input end of the ammeter is connected with the signal output end of the current transformer, the communication end of the controller is connected with the communication end of the ammeter, the alarm device is connected with the control end of the controller, and the power module is connected with the ammeter, the controller and the alarm device; the knob enables and disables the alarm device.
2. The ultra-large current monitor as set forth in claim 1, wherein the current transformer converts a Bai' an level current signal of a power supply cable of the measured instrument into an A level current signal and outputs the A level current signal to the ammeter, the controller continuously reads current value data in the ammeter and uploads the current value data to a remote instrument monitoring system through a wireless communication module in the controller; the controller judges the read current value, alarms the current exceeding a set threshold value and uploads alarm information to the remote instrument monitoring system.
3. The ultra-large current monitor as claimed in claim 2, wherein the current transformers are of an open-close type, and are directly sleeved on the instrument power supply phase line during installation, and the number of the current transformers is 1-3; the ammeter is a three-phase digital display ammeter with a wired communication interface, a controller reads current value data through the interface, and the three-phase digital display ammeter displays a current value in real time; the current transformer and the ammeter are electrically connected at the bottom of the box body through an aviation plug; the controller comprises a main control module, a wired communication module, a wireless communication module, a relay module and a power supply module, the controller is communicated with the ammeter through the wired communication module, is communicated with a remote instrument monitoring system through the wireless communication module, and controls the alarm device through the relay module; the alarm device is an audible and visual alarm, and is enabled and disabled by a knob, and the enabling is controlled by the controller.
4. The ultra-large current monitor as set forth in claim 3, wherein said relay module comprises a chip U6, pin 8 of said chip U6 is connected to a capacitor C15, pin 5 of said chip U6 is connected to a contactor K1, and pin 1 of said chip U6 is connected to a relay K1.
5. The ultra-large current monitor as set forth in claim 3, wherein said wired communication module is an RS485 wired communication module, said wired communication module includes a chip U5, and the No. 12 pin and the No. 13 pin of the chip U5 are connected with a resistor R11.
6. The monitor of claim 3, wherein the main control module comprises a chip U4, the pin No. 6 and the pin No. 7 of the chip U4 are both connected to a crystal oscillator Y1, one end of the crystal oscillator Y1 is connected to a capacitor C11, the other end of the crystal oscillator Y1 is connected to a capacitor C12, the pin No. 24 of the chip U4 is connected to a resistor 16 and a resistor 15, the pin No. 25 of the chip U4 is connected to a resistor 9, the pin No. 29 of the chip U4 is connected to a resistor 10, the pin No. 8 of the chip U4 is connected to a plug P2, the plug P2 is connected to a resistor R5, a resistor R6 and a resistor R8, the pin No. 44 and the pin No. 41 of the chip U4 are both connected to a capacitor C13, the capacitor C13 is connected to a capacitor C14 in parallel, the pin No. 39 of the chip U4 is connected to a plug P3, and the pin P6867 and the capacitor C87458 are connected to a resistor R3687458, the resistor R7 is connected with the diode D2 in parallel.
7. The ultra-large current monitor as set forth in claim 3, wherein said wireless communication module comprises a chip Z1, a pin No. 10 of said chip Z1 is connected with a resistor R14, pins No. 1 and No. 4 of said chip Z1 are connected with a resistor R13, said resistor R14 is connected with said resistor R13, a pin No. 20 of said chip Z1 is connected with a capacitor C16, and a pin No. 28 of said chip Z1 is connected with a resistor R12.
8. The ultra-large current monitor as set forth in claim 6, wherein said power supply module further comprises a chip U2, pin No. 1 of said chip U2 is connected to chip U1 and chip U3, pin No. 11 and pin No. 9 of said chip U1 are both connected to inductor L1, pin No. 1 and pin No. 3 of said chip U2 are both connected to capacitor C7, pin No. 5 of said chip U2 is connected to capacitor C8, pin No. 1 and pin No. 2 of said chip U3 are connected to capacitor C6, pin No. 3 and pin No. 4 of said chip U3 are connected to capacitor C9; a 12-number pin of the chip U1 is connected with a diode D1, the diode D1 is connected with a safety resistor F1, the safety resistor F1 is connected with a plug connector P1, a 14-number pin of the chip U1 is connected with a resistor R3, a 3-number pin of the chip U1 is connected with a capacitor C5, a 12-number pin of the chip U1 is connected with a capacitor C2 and a capacitor C1, the capacitor C2 is connected with the capacitor C1 in parallel, a 14-number pin of the chip U1 is connected with a resistor R3, a 7-number pin of the chip U1 is connected with a resistor R1, a resistor R2, a capacitor C3 and a capacitor C4, and the resistor R1 is connected with a resistor R4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920785164.8U CN210376496U (en) | 2019-05-29 | 2019-05-29 | Super large current monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920785164.8U CN210376496U (en) | 2019-05-29 | 2019-05-29 | Super large current monitor |
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| CN210376496U true CN210376496U (en) | 2020-04-21 |
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| CN201920785164.8U Active CN210376496U (en) | 2019-05-29 | 2019-05-29 | Super large current monitor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110031669A (en) * | 2019-05-29 | 2019-07-19 | 上海基理网络科技有限公司 | Super-large current monitor |
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2019
- 2019-05-29 CN CN201920785164.8U patent/CN210376496U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110031669A (en) * | 2019-05-29 | 2019-07-19 | 上海基理网络科技有限公司 | Super-large current monitor |
| CN110031669B (en) * | 2019-05-29 | 2024-05-24 | 上海基理网络科技有限公司 | Super-current monitor |
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