CN108037404B - Low-voltage acquisition terminal short-circuit fault alarm device - Google Patents
Low-voltage acquisition terminal short-circuit fault alarm device Download PDFInfo
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- CN108037404B CN108037404B CN201711282501.3A CN201711282501A CN108037404B CN 108037404 B CN108037404 B CN 108037404B CN 201711282501 A CN201711282501 A CN 201711282501A CN 108037404 B CN108037404 B CN 108037404B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
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Abstract
The invention discloses a short-circuit fault alarm device for a low-voltage acquisition terminal, which comprises a low-voltage acquisition terminal main body and a short-circuit fault alarm device main body arranged at the top of one side of the low-voltage acquisition terminal main body, wherein an installation groove arranged on the low-voltage acquisition terminal main body is arranged below the short-circuit fault alarm device main body, and an interface installation plate is arranged in the installation groove. The short-circuit detection device is economical and practical, when a short-circuit sensor on the short-circuit detection module detects a short-circuit signal on a short-circuit detection port, the main control module can control the driving motor to rotate forwards, so that the first conductive column and the second conductive column are separated, the power socket stops supplying power for the main control circuit board, the positioning module sends position information of the low-voltage acquisition terminal main body to the monitoring platform under the control of the main control module, the alarm module on the monitoring platform gives an alarm, and convenience is brought to maintenance of workers.
Description
Technical Field
The invention relates to the technical field of low-voltage acquisition terminals, in particular to a short-circuit fault alarm device for a low-voltage acquisition terminal.
Background
The low pressure acquisition terminal is used for carrying out the equipment of gathering to the low pressure, whether the short circuit takes place at the low pressure acquisition terminal for the convenience of staff can understand, short circuit fault alarm device has been installed on the low pressure acquisition terminal, short circuit fault alarm device on the low pressure acquisition terminal can only report to the police at the position at low pressure acquisition terminal, low pressure acquisition terminal distributes in each region in city in addition, make the staff can not timely discovery low pressure acquisition terminal take place the short circuit, and then can not carry out timely maintenance to the low pressure acquisition terminal that takes place the short circuit, and low pressure acquisition terminal is when taking place the short circuit, unable automatic power off, make low pressure acquisition terminal take place the damage because of the short circuit easily.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a short-circuit fault alarm device for a low-voltage acquisition terminal.
The invention provides a short-circuit fault alarm device of a low-voltage acquisition terminal, which comprises a low-voltage acquisition terminal main body and a short-circuit fault alarm device main body arranged at the top of one side of the low-voltage acquisition terminal main body, wherein a mounting groove formed on the low-voltage acquisition terminal main body is arranged below the short-circuit fault alarm device main body, an interface mounting plate is arranged inside the mounting groove, a power socket, a motor reset switch and a short-circuit detection port are sequentially arranged at one side of the interface mounting plate, a rectangular cavity formed on the low-voltage acquisition terminal main body is arranged at one side of the mounting groove, a first circular through hole communicated with the inside of the mounting groove is formed in the inner wall of one side of the rectangular cavity, a fixed vertical plate is welded on the side wall of the first circular through hole, an insulating column with a hollow structure is arranged at one side of the fixed, a connecting vertical plate is slidably mounted in the first rectangular through hole, a first conductive column positioned in the insulating column is mounted on one side, close to the power socket, of the connecting vertical plate, the first conductive column is in contact with a second conductive column electrically connected with the voltage output end of the power socket, the second conductive column is mounted on the inner wall, close to the power socket, of the insulating column, the top of the connecting vertical plate extends to the upper side of the insulating column and is provided with a first rectangular groove, two sides of the connecting vertical plate are provided with open first rectangular grooves, a guide column welded with the inner wall of the top of the rectangular cavity is placed in the first rectangular groove, two sides of the guide column are provided with second rectangular grooves, a fixed block welded with the side wall of the first rectangular groove is placed in the second rectangular groove, compression springs positioned in the second rectangular grooves are fixedly mounted on two sides of the fixed block, and one ends, far away from the fixed block, of the compression springs are mounted on the side wall of, a driving motor fixed with the inner wall of one side of the rectangular cavity is arranged between the guide post and the insulating post, a lead screw which penetrates through the whole connecting vertical plate and is rotatably installed with the inner wall of the other side of the rectangular cavity is welded on an output shaft of the driving motor, the short-circuit fault alarm device main body comprises a main control module, an input end of the main control module is electrically connected with an output end of a coupling module, an input end of the coupling module is electrically connected with an output end of a short-circuit detection module, a first signal output end of the main control module is electrically connected with one end of a motor reset switch, the other end of the motor reset switch is electrically connected with an input end of a reverse driving module, an output end of the reverse driving module is electrically connected with a reverse control end of the driving motor, a second signal output end of the main control module is electrically connected with an input, the output end of the positive rotation driving module is electrically connected with the positive rotation control end of the driving motor, the second output end of the synchronous module is electrically connected with the control end of the positioning module, the output end of the positioning module is electrically connected with the input end of the wireless transmitting module, the control end of the wireless transmitting module is electrically connected with the third signal output end of the main control module, and the wireless transmitting module is wirelessly connected with the monitoring platform.
Preferably, the connecting vertical plate is welded on two sides with sliding blocks, the sliding blocks are connected with sliding grooves formed in the side wall of the first rectangular through hole in a sliding mode, the connecting vertical plate is provided with threaded through holes connected with the screw rods in a threaded mode, and the threaded through holes are located above the sliding blocks.
Preferably, the insulation column is kept away from one side inner wall of power socket and the rectangle cavity and all has been seted up the unwrapping wire through-hole on keeping away from one side inner wall of power socket, and the power transmission line has been placed to the inside of unwrapping wire through-hole, the one end and the first electrically conductive electrical connection of post of power transmission line.
Preferably, the inside of low pressure collection terminal main part is equipped with the main control circuit board, and the other end electric connection of main control circuit board and power transmission line.
Preferably, a storage battery pack is further arranged on the short-circuit fault alarm device main body, and a voltage output end of the storage battery pack is electrically connected with a voltage input end of the driving motor and a voltage input end of the main control module respectively.
Preferably, the synchronization module is configured to receive a control signal sent by the main control module, and the synchronization module synchronously starts the forward rotation driving module and the positioning module according to the control signal sent by the main control module, an inductive switch is further electrically connected between a first output end of the synchronization module and an input end of the forward rotation driving module, and the inductive switch is fixedly mounted on an inner wall of one side of the first rectangular through hole, which is far away from the power socket.
Preferably, the positioning module is configured to receive the signal output by the synchronization module, then perform positioning by the positioning module according to the signal output by the synchronization module, and finally send the positioning information to the wireless transmitting module.
Preferably, the monitoring platform comprises a wireless receiving module which is wirelessly connected with the wireless transmitting module, the output end of the wireless receiving module is electrically connected with a central processing module, and the output end of the central processing module is electrically connected with the input end of the alarm module and the input end of the display module respectively.
Preferably, the short circuit detection module includes a short circuit sensor electrically connected to the short circuit detection port, an output end of the short circuit sensor is electrically connected to one end of a capacitor C1 and one end of an inductor L1, the other end of a capacitor C1 is electrically connected to the other end of an inductor L1, an anode of a capacitor C3, a pin 2 of an amplifier U1, a first end of a resistor R1 and one end of a capacitor C2, a pin 3 of an amplifier U1 is electrically connected to one end of a resistor R2, the other end of the resistor R2 and a cathode of a capacitor C3 are both grounded, a pin 8 of the amplifier U1 is electrically connected to a +12 v power supply, a pin 4 of an amplifier U1 is electrically connected to a-12 v power supply, a pin 1 of the amplifier U1 is electrically connected to a second end of a resistor R1, a sliding end of a resistor R1, the other end of a capacitor C2 and an.
Preferably, the resistances of the resistor R1 and the resistor R2 are 1.5K Ω and 2.4K Ω in sequence, the capacitance values of the capacitor C1, the capacitor C2 and the capacitor C3 are 220 μ F, 220 μ F and 33pF in sequence, the inductor L1 is an inductor of PS8D28-2R2NT model, the amplifier U1 is an operational amplifier of LTC1152 model, the short-circuit sensor is used for detecting a short-circuit signal output by the short-circuit detection port in real time, and the short-circuit sensor converts the detected short-circuit signal into an analog high-level signal.
The invention has the beneficial effects that:
1. when a short-circuit sensor on the short-circuit detection module detects a short-circuit signal on a short-circuit detection port, an analog high-level signal output by the short-circuit detection module triggers the main control module through the coupling module, on one hand, the main control module controls the positioning module to position the position of the low-voltage acquisition terminal main body and transmits the position to the wireless transmission module, and finally, an alarm module on the monitoring platform gives an alarm to facilitate a worker to quickly maintain the low-voltage acquisition terminal main body with the short circuit, the main control module can also control the driving module to rotate forwards;
2. through a driving motor, a screw rod, a threaded through hole on a connecting vertical plate, a first conductive column, a second conductive column, a fixed block on the inner wall of a first rectangular groove, a compression spring, a sliding block and a sliding groove on the side wall of the first rectangular through hole are matched, at the moment, the driving motor rotates forwards, the driving motor drives the connecting vertical plate to horizontally move in a rectangular cavity through the screw rod, the connecting vertical plate drives the sliding block to slide on the corresponding sliding groove, the connecting vertical plate drives the fixed block to move in a position in a second rectangular groove at the same time, until the connecting vertical plate is contacted with an induction switch, so that the induction switch is converted from a conduction state to a cut-off state, the driving motor stops rotating forwards, at the moment, the first conductive column is separated from the second conductive column, and the low-voltage;
3. the main control module, the motor reset switch, the reverse rotation driving module and the driving motor are matched, the motor reset switch is pressed, the driving motor is enabled to reversely rotate, the driving motor can drive the first conductive column on the connecting vertical plate to recover to the initial position, and at the moment, the first guide column is in contact with the second guide column, so that the power socket can normally supply power to the main control circuit board in the low-voltage acquisition terminal main body;
the short-circuit detection device is economical and practical, when a short-circuit sensor on the short-circuit detection module detects a short-circuit signal on a short-circuit detection port, the main control module can control the driving motor to rotate forwards, so that the first conductive column and the second conductive column are separated, the power socket stops supplying power for the main control circuit board, the positioning module sends position information of the low-voltage acquisition terminal main body to the monitoring platform under the control of the main control module, the alarm module on the monitoring platform gives an alarm, and convenience is brought to maintenance of workers.
Drawings
Fig. 1 is a front view of a short-circuit fault alarm device of a low-voltage acquisition terminal according to the present invention;
FIG. 2 is a cross-sectional view A-A of a low voltage acquisition terminal short circuit fault alarm device in accordance with the present invention;
FIG. 3 is a schematic diagram of the short-circuit fault alarm device for the low-voltage acquisition terminal according to the present invention;
FIG. 4 is a working schematic diagram of a monitoring platform of the short-circuit fault alarm device for the low-voltage acquisition terminal provided by the invention;
fig. 5 is an internal circuit diagram of a short-circuit detection module of the low-voltage acquisition terminal short-circuit fault alarm device provided by the invention.
In the figure: 1 low pressure acquisition terminal main part, 2 short circuit fault alarm device main parts, 3 mounting grooves, 4 interface mounting panels, 5 power socket, 6 motor reset switch, 7 short circuit detection port, 8 rectangle cavity, 9 first circular through-holes, 10 insulating columns, 11 first rectangle through-holes, 12 connection riser, 13 first lead electrical pillar, 14 second lead electrical pillar, 15 driving motor, 16 lead screws, 17 guide posts, 18 second rectangle groove, 19 fixed blocks, 20 compression spring.
Detailed Description
The present invention will be further illustrated with reference to the following specific examples.
Examples
Referring to fig. 1-5, the embodiment provides a short-circuit failure alarm device for a low-voltage acquisition terminal, which includes a low-voltage acquisition terminal main body 1 and a short-circuit failure alarm device main body 2 installed on the top of one side of the low-voltage acquisition terminal main body 1, wherein a mounting groove 3 opened on the low-voltage acquisition terminal main body 1 is provided below the short-circuit failure alarm device main body 2, an interface mounting plate 4 is installed inside the mounting groove 3, a power socket 5, a motor reset switch 6 and a short-circuit detection port 7 are sequentially installed on one side of the interface mounting plate 4, a rectangular cavity 8 opened on the low-voltage acquisition terminal main body 1 is provided on one side of the mounting groove 3, a first circular through hole 9 communicated with the inside of the mounting groove 3 is provided on the inner wall of one side of the rectangular cavity 8, a fixed vertical plate is welded on the side wall of the first circular through hole, a first rectangular through hole 11 is formed in the inner wall of the top of the insulating column 10, a connecting vertical plate 12 is slidably mounted inside the first rectangular through hole 11, a first conductive column 13 located inside the insulating column 10 is mounted on one side, close to the power socket 5, of the connecting vertical plate 12, the first conductive column 13 is in contact with a second conductive column 14 electrically connected with the voltage output end of the power socket 5, the second conductive column 14 is mounted on the inner wall of one side, close to the power socket 5, of the insulating column 10, the top of the connecting vertical plate 12 extends to the upper side of the insulating column 10 and is provided with a first rectangular groove, two sides of the first rectangular groove are provided with a guide column 17, the guide column 17 is welded with the inner wall of the top of the rectangular cavity 8, two sides of the guide column 17 are provided with second rectangular grooves 18, a fixing block 19 welded with the side walls of the first rectangular groove is disposed inside the second rectangular groove 18, two sides of the fixing block 19 are fixedly provided with a compression spring 20, one end of the compression spring 20 far away from the fixed block 19 is mounted with the side wall of the second rectangular groove 18, a driving motor 15 fixed with the inner wall of one side of the rectangular cavity 8 is arranged between the guide column 17 and the insulating column 10, a lead screw 16 penetrating through the whole connecting vertical plate 12 and rotatably mounted with the inner wall of the other side of the rectangular cavity 8 is welded on an output shaft of the driving motor 15, the short-circuit fault alarm device main body 2 comprises a main control module, the main control module is an MCU controller, an input end of the main control module is electrically connected with an output end of a coupling module, an input end of the coupling module is electrically connected with an output end of a short-circuit detection module, the short-circuit detection module comprises a short-circuit sensor electrically connected with a short-circuit detection port 7, an output end of the short-circuit sensor is electrically connected with one end of a capacitor C1 and one end of an inductor L1, the other, A pin 2 of an amplifier U1, a first end of a resistor R1 and one end of a capacitor C2, a pin 3 of the amplifier U1 is electrically connected with one end of a resistor R2, the other end of the resistor R2 and the negative electrode of the capacitor C3 are both grounded, a pin 8 of the amplifier U1 is electrically connected with a + 12V power supply, a pin 4 of the amplifier U1 is electrically connected with a-12V power supply, a pin 1 of an amplifier U1 is electrically connected with a second end of the resistor R1, a sliding end of the resistor R1, the other end of the capacitor C2 and an output end of a short circuit detection module, a first signal output end of a main control module is electrically connected with one end of a motor reset switch 6, the other end of the motor reset switch 6 is electrically connected with an input end of a reverse driving module, an output end of the reverse driving module is electrically connected with a reverse control end of a driving motor 15, and the first output end of the synchronous module is electrically connected with the input end of the forward rotation driving module, the output end of the forward rotation driving module is electrically connected with the forward rotation control end of the driving motor 15, the second output end of the synchronous module is electrically connected with the control end of the positioning module, the output end of the positioning module is electrically connected with the input end of the wireless transmitting module, the control end of the wireless transmitting module is electrically connected with the third signal output end of the main control module, and the wireless transmitting module is wirelessly connected with the monitoring platform, the invention is economical and practical, when the short-circuit sensor on the short-circuit detection module detects a short-circuit signal on the short-circuit detection port 7, the main control module can control the driving motor 15 to rotate forward, so that the first conductive column 13 is separated from the second conductive column 14, the power socket 5 stops supplying power to the main control circuit board, and, the positioning module sends the position information of the low-voltage acquisition terminal main body 1 to the monitoring platform, so that the alarm module on the monitoring platform gives an alarm, and convenience is brought to the maintenance of workers.
In this embodiment, the connecting riser 12 is welded with sliding blocks on both sides thereof, the sliding blocks are slidably connected with sliding grooves formed on the side walls of the first rectangular through holes 11, the connecting riser 12 is provided with threaded through holes in threaded connection with the lead screw 16, the threaded through holes are located above the sliding blocks, the insulating column 10 is provided with wire-releasing through holes on the inner wall of one side thereof away from the power socket 5 and the inner wall of one side thereof away from the power socket 5 of the rectangular cavity 8, and a power transmission line is placed inside the wire-releasing through holes, one end of the power transmission line is electrically connected with the first conductive post 13, a main control circuit board is arranged inside the low voltage acquisition terminal body 1, and the main control circuit board is electrically connected with the other end of the power transmission line, the short circuit failure alarm device body 2 is further provided with a storage battery pack, the synchronous module is used for receiving a control signal sent by the main control module, the synchronous module synchronously starts the forward driving module and the positioning module according to the control signal sent by the main control module, an inductive switch is electrically connected between the first output end of the synchronous module and the input end of the forward driving module and fixedly installed on the inner wall of one side of the first rectangular through hole 11 away from the power socket 5, the positioning module is used for receiving a signal output by the synchronous module, then the positioning module performs positioning according to the signal output by the synchronous module, finally the positioning module sends positioning information to the wireless transmitting module, the monitoring platform comprises a wireless receiving module in wireless connection with the wireless transmitting module, the output end of the wireless receiving module is electrically connected with a central processing module, and the output end of the central processing module is respectively electrically connected with the input end of the alarm module and the input end of the display module, the resistances of the resistor R1 and the resistor R2 are 1.5K omega and 2.4K omega in sequence, the capacities of the capacitor C1, the capacitor C2 and the capacitor C3 are 220 muF, 220 muF and 33pF in sequence, the inductor L1 is an inductor of PS8D28-2R2NT model, the amplifier U1 is an operational amplifier of LTC1152 model, the short-circuit sensor is used for detecting the short-circuit signal output by the short-circuit detection port 7 in real time, and the short-circuit sensor converts the detected short-circuit signal into an analog high-level signal, the invention is economical and practical, when the short-circuit sensor on the short-circuit detection module detects the short-circuit signal on the short-circuit detection port 7, the main control module can control the driving motor 15 to rotate forwards, so that the first conductive column 13 is separated from the second conductive column 14, the power socket 5 stops supplying power to the main control circuit board, and the positioning module sends the position information of the low-voltage acquisition terminal main body 1 to the monitoring platform under the control of the main control, the alarm module on the monitoring platform gives an alarm, and convenience is brought to maintenance of workers.
In this embodiment, under the cooperation of the short-circuit detection module, the coupling module, the main control module, the synchronization module, the positioning module, the wireless transmission module, the wireless receiving module of the monitoring platform, the forward rotation driving module and the driving motor 15, when the short-circuit sensor on the short-circuit detection module detects a short-circuit signal on the short-circuit detection port 7, the short-circuit sensor converts the detected short-circuit signal into an analog high-level signal, then the short-circuit sensor transmits the analog high-level signal to the filter circuit formed by the capacitor C1, the inductor L1 and the capacitor C3, the filter circuit filters the analog high-level signal output by the short-circuit sensor, the analog high-level signal output by the filter circuit is amplified by the amplifier U1, meanwhile, the parallel circuit formed by the capacitor C2 and the resistor R1 can effectively prevent the amplifier U1 from oscillating, the analog high-level signal output by the amplifier is converted into a digital high-level signal by the coupling module, the digital high level signal output by the coupling module triggers the main control module, the main control module synchronously controls the forward rotation driving module and the positioning module through the synchronous module, the positioning module positions the position of the low-voltage acquisition terminal main body 1 and transmits the position to the wireless transmitting module under the control of the main control module, the wireless transmitting module and the wireless receiving module adopt wireless transmission, so that the central processing module controls the alarm module to give an alarm and displays the position information sent by the positioning module on a display device, in addition, the main control module controls the driving motor 15 to forward rotate through the forward rotation driving module, the driving motor 15 drives the screw rod 16 to rotate on the inner wall of the other side of the rectangular cavity 8, and the screw rod 16 is meshed with the threaded through hole, the screw rod 16 drives the connecting vertical plate 12 to horizontally move in the rectangular cavity 8, the connecting vertical plate 12 drives the sliding block to slide on the corresponding sliding groove, meanwhile, the connecting vertical plate 12 drives the fixed block 19 to move in the second rectangular groove 18, the fixed block 19 stretches the compression spring 20 on one side, the fixed block 19 also compresses the compression spring 20 on the other side until the connecting vertical plate 12 is contacted with the induction switch, so that the induction switch is switched from a conducting state to a stopping state, the main control module is disconnected with the forward rotation driving module, the driving motor 15 stops forward rotation, the first conductive column 13 is separated from the second conductive column 14, the power socket 5 stops supplying power to the main control circuit board in the low-voltage acquisition terminal main body 1, the damage of the low-voltage acquisition terminal main body 1 due to internal short circuit is effectively avoided, and after the short circuit problem of the low-voltage acquisition terminal main body 1 is processed by a worker, the motor reset switch 6 is pressed, make host system and reversal drive module establish the connection, host system controls driving motor 15 through the reversal control module and reverses, driving motor 15 can drive through lead screw 16 and connect riser 12 and move to the direction that is close to power socket 5 in the inside of rectangle cavity 8, the initial position that first conductive pillar 13 on connecting riser 12 resumeed, first guide pillar 13 contacts with second guide pillar 14 this moment, make power socket 5 resume and carry out normal power supply for the inside master control circuit board of low pressure acquisition terminal main part 1.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. Low-voltage acquisition terminal short-circuit fault alarm device, which comprises a low-voltage acquisition terminal main body (1) and a short-circuit fault alarm device main body (2) arranged at the top of one side of the low-voltage acquisition terminal main body (1), and is characterized in that a mounting groove (3) arranged on the low-voltage acquisition terminal main body (1) is arranged below the short-circuit fault alarm device main body (2), an interface mounting plate (4) is arranged inside the mounting groove (3), a power socket (5), a motor reset switch (6) and a short-circuit detection port (7) are sequentially arranged on one side of the interface mounting plate (4), a rectangular cavity (8) arranged on the low-voltage acquisition terminal main body (1) is arranged on one side of the mounting groove (3), and a first circular through hole (9) communicated with the inside of the mounting groove (3) is arranged on the inner wall of one, the insulation column is characterized in that a fixed vertical plate is welded on the side wall of the first circular through hole (9), one side of the fixed vertical plate far away from the power socket (5) is provided with an insulation column (10) with an inner part set as a hollow structure, a first rectangular through hole (11) is formed in the inner wall of the top of the insulation column (10), a connecting vertical plate (12) is arranged in the first rectangular through hole (11) in a sliding mode, a first conductive column (13) located in the insulation column (10) is arranged on one side, close to the power socket (5), of the connecting vertical plate (12), the first conductive column (13) is in contact with a second conductive column (14) electrically connected with the voltage output end of the power socket (5), the second conductive column (14) is arranged on the inner wall, close to the power socket (5), of the insulation column (10), the top of the connecting vertical plate (12) extends to the upper side of the insulation column (10) and is, and a guide post (17) welded with the inner wall of the top of the rectangular cavity (8) is arranged in the first rectangular groove, the two sides of the guide post (17) are both provided with a second rectangular groove (18), and a fixed block (19) welded with the side wall of the first rectangular groove is arranged in the second rectangular groove (18), both sides of the fixed block (19) are fixedly provided with compression springs (20) positioned in the second rectangular grooves (18), and one end of the compression spring (20) far away from the fixed block (19) is arranged with the side wall of the second rectangular groove (18), a driving motor (15) fixed with the inner wall of one side of the rectangular cavity (8) is arranged between the guide column (17) and the insulating column (10), a screw rod (16) which penetrates through the whole connecting vertical plate (12) and is rotatably arranged with the inner wall of the other side of the rectangular cavity (8) is welded on an output shaft of the driving motor (15);
the short-circuit fault alarm device main body (2) comprises a main control module, the input end of the main control module is electrically connected with the output end of a coupling module, the input end of the coupling module is electrically connected with the output end of a short-circuit detection module, the first signal output end of the main control module is electrically connected with one end of a motor reset switch (6), the other end of the motor reset switch (6) is electrically connected with the input end of a reverse rotation driving module, the output end of the reverse rotation driving module is electrically connected with the reverse rotation control end of a driving motor (15), the second signal output end of the main control module is electrically connected with the input end of a synchronous module, the first output end of the synchronous module is electrically connected with the input end of a forward rotation driving module, the output end of the forward rotation driving module is electrically connected with the forward rotation control end of the driving motor (15), and the second output end, and the output end of the positioning module is electrically connected with the input end of the wireless transmitting module, the control end of the wireless transmitting module is electrically connected with the third signal output end of the main control module, and the wireless transmitting module is wirelessly connected with the monitoring platform.
2. The short-circuit fault alarm device for the low-voltage acquisition terminal as claimed in claim 1, wherein sliding blocks are welded on two sides of the connecting vertical plate (12), sliding grooves arranged on the side wall of the first rectangular through hole (11) are connected with the sliding blocks in a sliding manner, a threaded through hole in threaded connection with the screw rod (16) is arranged on the connecting vertical plate (12), and the threaded through hole is located above the sliding blocks.
3. The short-circuit fault alarm device for the low-voltage collection terminal is characterized in that a paying-off through hole is formed in each of the inner wall of one side, away from the power socket (5), of the insulating column (10) and the inner wall of one side, away from the power socket (5), of the rectangular cavity (8), a power transmission line is placed inside the paying-off through hole, and one end of the power transmission line is electrically connected with the first conductive column (13).
4. The short-circuit fault alarm device for the low-voltage acquisition terminal is characterized in that a main control circuit board is arranged inside the low-voltage acquisition terminal body (1), and the main control circuit board is electrically connected with the other end of the power transmission line.
5. The short-circuit fault alarm device for the low-voltage acquisition terminal as claimed in claim 1, wherein a storage battery is further arranged on the short-circuit fault alarm device main body (2), and a voltage output end of the storage battery is electrically connected with a voltage input end of the driving motor (15) and a voltage input end of the main control module respectively.
6. The short-circuit fault alarm device for the low-voltage acquisition terminal according to claim 1, wherein the synchronization module is configured to receive a control signal sent by the main control module, and the synchronization module synchronously starts the forward rotation driving module and the positioning module according to the control signal sent by the main control module, and an inductive switch is further electrically connected between the first output end of the synchronization module and the input end of the forward rotation driving module, and is fixedly installed on an inner wall of the first rectangular through hole (11) on a side away from the power socket (5).
7. The short-circuit fault alarm device for the low-voltage acquisition terminal as claimed in claim 1, wherein the positioning module is configured to receive the signal output by the synchronization module, then perform positioning by the positioning module according to the signal output by the synchronization module, and finally send the positioning information to the wireless transmission module.
8. The short-circuit fault alarm device for the low-voltage acquisition terminal as claimed in claim 1, wherein the monitoring platform comprises a wireless receiving module wirelessly connected with the wireless transmitting module, and an output end of the wireless receiving module is electrically connected with a central processing module, and an output end of the central processing module is electrically connected with an input end of the alarm module and an input end of the display module respectively.
9. The short-circuit fault alarm device for the low-voltage acquisition terminal as claimed in claim 1, wherein the short-circuit detection module comprises a short-circuit sensor electrically connected to a short-circuit detection port (7), an output end of the short-circuit sensor is electrically connected to one end of a capacitor C1 and one end of an inductor L1, the other end of the capacitor C1 is electrically connected to the other end of the inductor L1, an anode of a capacitor C3, a pin 2 of an amplifier U1, a first end of a resistor R1 and one end of a capacitor C2, a pin 3 of the amplifier U1 is electrically connected to one end of a resistor R2, the other end of the resistor R2 and a cathode of the capacitor C3 are all grounded, a pin 8 of the amplifier U1 is electrically connected to a +12 v power supply, a pin 4 of the amplifier U1 is electrically connected to a-12 v power supply, a pin 1 of the amplifier U1 is electrically connected to a second end of a resistor R1, a sliding end, The other end of the capacitor C2 and the output of the short detection module.
10. The short-circuit fault alarm device for the low-voltage acquisition terminal as claimed in claim 9, wherein the resistances of the resistor R1 and the resistor R2 are 1.5K Ω and 2.4K Ω in sequence, the capacitance values of the capacitor C1, the capacitor C2 and the capacitor C3 are 220 μ F, 220 μ F and 33pF in sequence, the inductor L1 is an inductor of PS8D28-2R2NT model, the amplifier U1 is an operational amplifier of LTC1152 model, the short-circuit sensor is used for detecting the short-circuit signal output by the short-circuit detection port (7) in real time, and the short-circuit sensor converts the detected short-circuit signal into an analog high-level signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711282501.3A CN108037404B (en) | 2017-12-07 | 2017-12-07 | Low-voltage acquisition terminal short-circuit fault alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711282501.3A CN108037404B (en) | 2017-12-07 | 2017-12-07 | Low-voltage acquisition terminal short-circuit fault alarm device |
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| CN108037404B true CN108037404B (en) | 2020-06-09 |
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| US11205894B1 (en) * | 2020-06-26 | 2021-12-21 | Alpha And Omega Semiconductor International Lp | Port controller power path short detection |
| CN112082800B (en) * | 2020-09-22 | 2021-05-18 | 广东威尔科技推广有限公司 | Electronic product performance detection device |
| CN113376201B (en) * | 2021-06-21 | 2022-09-13 | 吉林大学 | Device and method for collecting NiTi phase transition temperature experimental data |
| CN118033264B (en) * | 2024-01-24 | 2024-10-11 | 江苏苏电电气设备检测有限公司 | Detection equipment and detection system for power equipment state |
| CN118584246A (en) * | 2024-06-17 | 2024-09-03 | 国网山东省电力公司德州供电公司 | Fault positioning device of intelligent power distribution network |
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| DE3628400A1 (en) * | 1986-02-17 | 1987-08-20 | Horstmann Gmbh Dipl Ing H | Short-circuit indicator |
| JPH05340986A (en) * | 1992-06-10 | 1993-12-24 | Matsushita Electric Ind Co Ltd | Short circuit and disconnection tester |
| CN2209337Y (en) * | 1994-12-28 | 1995-10-04 | 北京智能化应用技术研究所 | Electric transmission and distribution network short-circuit failure indicator |
| CN104076239A (en) * | 2014-07-01 | 2014-10-01 | 国家电网公司 | Self-resetting short-circuit fault indicator |
| CN205608122U (en) * | 2016-02-29 | 2016-09-28 | 惠州市伟江实业有限公司 | Battery short circuit test instrument |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3628400A1 (en) * | 1986-02-17 | 1987-08-20 | Horstmann Gmbh Dipl Ing H | Short-circuit indicator |
| JPH05340986A (en) * | 1992-06-10 | 1993-12-24 | Matsushita Electric Ind Co Ltd | Short circuit and disconnection tester |
| CN2209337Y (en) * | 1994-12-28 | 1995-10-04 | 北京智能化应用技术研究所 | Electric transmission and distribution network short-circuit failure indicator |
| CN104076239A (en) * | 2014-07-01 | 2014-10-01 | 国家电网公司 | Self-resetting short-circuit fault indicator |
| CN205608122U (en) * | 2016-02-29 | 2016-09-28 | 惠州市伟江实业有限公司 | Battery short circuit test instrument |
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