Power supply safety monitoring device
By designing a power supply safety monitoring device, and using transformers and PLC controllers to achieve automatic detection and power outage, the problem of not being able to automatically disconnect the circuit in a timely manner in the prior art is solved, and the safety and stability of power supply are ensured.
Patent Information
- Application Number
- CN202411624589.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-14
- Publication Date
- 2025-02-18
AI Technical Summary
The monitoring of abnormal power supply of existing circuits mainly relies on manual detection, and the circuit cannot be automatically disconnected in time, resulting in unstable voltage or large fluctuations, affecting the safety of load equipment.
A power supply safety monitoring device is designed to measure the current or voltage value at the inlet end through the transformer, and to control the electromagnetic suction cup with a PLC controller to automatically detect circuit abnormalities and automatically power off.
Automatic detection and power outage of the circuit is realized, and the power supply is safe, and the problem of unstable voltage or excessive fluctuations is avoided, which protects the load equipment.
Smart Images
Figure CN119485982A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of power supply monitoring, and in particular to a power supply safety monitoring device. Background Art
[0002] Power supply refers to the safe, reliable, continuous and qualified sale of electric energy to the majority of power customers through power transmission and distribution equipment to meet the needs of economic construction and daily life of the majority of customers. The power system is composed of power plants, power transmission and transformation lines, power distribution stations and power consumption. At present, the monitoring of abnormal power supply of circuits mainly relies on equipment operation and maintenance personnel and related staff to go to the site for detection, using voltmeters or ammeters for detection, but the circuit cannot be disconnected in time. When the voltage is unstable or fluctuates greatly or the current is too small, the impact on the load equipment is relatively large. Therefore, a power supply safety monitoring device is proposed. Summary of the invention
[0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a power supply safety monitoring device, which measures the current or voltage value at the incoming line end through a mutual inductor, realizes automatic detection of circuit abnormalities and automatic power off, ensures power supply safety, and can effectively solve the problems in the background technology.
[0004] To achieve the above object, the present invention provides the following technical solution: a power supply safety monitoring device, comprising a box, an insulating base is provided at the bottom of the box, at least two conductive seats are provided on the upper part of the insulating base, which are opposite to each other and spaced apart, and the two conductive seats are switched on and off by a conducting component; an inlet terminal is provided on one side of the outer wall of the box, and the inlet terminal is connected to one of the conductive seats, and an outlet terminal is provided on the other side of the outer wall of the box, and the outlet terminal is connected to the other conductive seat; The conduction component includes an electromagnetic suction cup and a movable plate, the movable plate is located directly above the electromagnetic suction cup, the movable plate is movably sleeved with two fixed rods, the fixed rods are fixedly connected to the insulating base, the fixed rods are sleeved with springs, the two ends of the springs are respectively in contact with the movable plate and the insulating base, the upper end of the movable plate is provided with a vertical rod, the vertical rod is connected with a cross rod, the end of the cross rod is connected to a conductive column, the two ends of the two conductive columns are respectively corresponding to the two conductive seats, when the electromagnetic suction cup is energized, the electromagnetic suction cup absorbs the movable plate to move downward and compresses the spring, the movable plate drives the conductive column to move downward and makes its two ends respectively in contact with the two conductive seats; The box is also provided with a mutual inductor for detecting the voltage or current at the incoming line end. A cover plate is provided on the upper part of the box, and a PLC controller is provided on the upper part of the cover plate. The mutual inductor feeds back a signal to the PLC controller, and the PLC controller controls the action of the electromagnetic chuck.
[0005] Preferably, the conductive seat is connected to the insulating base through an insulating bolt, a bolt hole adapted to the insulating bolt is provided at the bottom of the conductive seat, a socket adapted to the incoming terminal or the outgoing terminal is provided on the side of the conductive seat, and a fastening bolt is provided on the conductive seat to fasten the incoming terminal or the outgoing terminal in the socket.
[0006] Preferably, a U-shaped groove adapted to the conductive column is provided on the upper portion of the conductive seat.
[0007] Preferably, the crossbar and the vertical bar are both insulating bars, an insulating sleeve is provided at the end of the crossbar, the conductive column is inserted into the insulating sleeve, and the insulating sleeve is threadedly connected with a locking screw that fixes the conductive column in the insulating sleeve.
[0008] Preferably, there are two incoming terminals, two outgoing terminals and two transformers, and four conductive bases are provided accordingly.
[0009] Preferably, the insulating base is fixedly connected to the bottom of the box body by bolts.
[0010] Preferably, the cover plate is fixedly connected to the box body by screws.
[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: the current or voltage value at the incoming line end is measured by a mutual inductor, and when the circuit is normal, the electromagnetic suction cup is in a power-on state, the electromagnetic suction cup absorbs the movable plate, the movable plate moves down and compresses the spring, the movable plate drives the conductive column to move down and makes its two ends respectively contact with the two conductive seats, then the circuit can be turned on, when the mutual inductor measures the current or voltage value at the incoming line end, when the measured value is abnormal, it is fed back to the PLC controller, the electromagnetic suction cup is powered off, and under the action of the spring, the movable plate moves up, then the two ends of the conductive column are respectively separated from the two conductive seats, then the circuit is powered off, thereby realizing automatic detection of circuit abnormalities and automatic power off, ensuring power supply safety. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 The local structure of the present invention is shown in FIG. Figure 1 ; Figure 3 The local structure of the present invention is shown in FIG. Figure 2 ; Figure 4 It is a schematic diagram of the conductive seat structure of the present invention.
[0013] In the figure: 1 incoming line terminal, 2 box body, 3 outgoing line terminal, 4 PLC controller, 5 cover plate, 6 mutual inductor, 7 conductive seat, 7.1 U-shaped groove, 7.2 fastening bolt, 7.3 jack, 7.4 bolt hole, 8 conductive seat, 8.1, 8.2 insulating sleeve, 8.3 horizontal bar, 8.4 vertical bar, 8.5 movable plate, 8.6 fixed rod, 8.7 spring, 8.8 electromagnetic suction cup, 8.9 conductive column, 9 insulating base. DETAILED DESCRIPTION
[0014] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", etc. indicating directions or positional relationships, they only correspond to the drawings of the present application for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction.
[0015] See also Figure 1-4 The present invention provides a technical solution: a power supply safety monitoring device, comprising a box body 2, an insulating base 9 is provided at the bottom of the box body 2, at least two conductive seats 7 are provided on the upper part of the insulating base 9, which are opposite to each other and spaced apart, and the two conductive seats 7 are switched on and off by a conducting component 8; an inlet terminal 1 is provided on one side of the outer wall of the box body 2, and the inlet terminal 1 is connected to one of the conductive seats 7, and an outlet terminal 3 is provided on the other side of the outer wall of the box body 2, and the outlet terminal 3 is connected to another conductive seat 7, and the inlet terminal 1 and the outlet terminal 3 are electrically connected to the corresponding conductive seats 7; Specifically, the conduction component 8 includes an electromagnetic suction cup 8.8 and a movable plate 8.5, the movable plate 8.5 is located directly above the electromagnetic suction cup 8.8, the movable plate 8.5 is movably sleeved with two fixed rods 8.6, the fixed rods 8.6 are fixedly connected to the insulating base 9, the fixed rods 8.6 are sleeved with springs 8.7, the two ends of the spring 8.7 are respectively in contact with the movable plate 8.5 and the insulating base 9, the upper end of the movable plate 8.5 is provided with a vertical rod 8.4, the vertical rod 8.4 is connected to a cross bar 8.3, the end of the cross bar 8.3 is connected to a conductive column 8.9, and the two ends of the two conductive columns 8.9 correspond to the two conductive seats 7 respectively; When the electromagnetic chuck 8.8 is powered on, the electromagnetic chuck 8.8 absorbs the movable plate 8.5 to move downward and compress the spring 8.7, and the movable plate 8.5 drives the conductive column 8.9 to move downward and make its two ends respectively contact with the two conductive seats 7; when the electromagnetic chuck 8.8 is powered off, the movable plate 8.5 moves upward under the action of the spring 8.7, and the two ends of the conductive column 8.9 are separated from the corresponding conductive seats 7, and the circuit is disconnected; It should be noted that the box body 2 is also provided with a mutual inductor 6 for detecting the voltage or current of the incoming line terminal 1, a cover plate 5 is provided on the upper part of the box body 2, a PLC controller 4 is provided on the upper part of the cover plate 5, the mutual inductor 6 feeds back a signal to the PLC controller 4, and the PLC controller 4 controls the action of the electromagnetic chuck 8.8; the current or voltage value of the incoming line terminal 1 is measured by the mutual inductor 6, and the measured value is fed back to the PLC controller 4. When the measured value is abnormal, the electromagnetic chuck 8.8 is powered off, and the circuit is powered off, thereby realizing automatic detection of circuit abnormality and automatic power off to ensure power supply safety; Further, the conductive seat 7 is connected to the insulating base 9 by an insulating bolt, a bolt hole 7.4 adapted to the insulating bolt is provided at the bottom of the conductive seat 7, and the conductive seat 7 is fixed by the insulating bolt to facilitate disassembly, and a socket 7.3 adapted to the incoming terminal 1 or the outgoing terminal 3 is provided on the side of the conductive seat 7, and the conductive seat 7 is provided with a fastening bolt 7.2 that fastens the incoming terminal 1 or the outgoing terminal 3 in the socket 7.3, and the incoming terminal 1 or the outgoing terminal 3 is conveniently installed by the fastening bolt 7.2; Furthermore, the upper part of the conductive seat 7 is provided with a U-shaped groove 7.1 adapted to the conductive column 8.9, and the conductive column 8.9 enters the U-shaped groove 7.1, increasing the contact area between the conductive column 8.9 and the conductive seat 7, which facilitates conduction; Furthermore, the crossbar 8.3 and the vertical bar 8.4 are both insulating bars, and an insulating sleeve 8.2 is provided at the end of the crossbar 8.3 to prevent leakage, and the conductive column 8.9 is inserted into the insulating sleeve 8.2, and the insulating sleeve 8.2 is threadedly connected with a locking screw 8.1 that fixes the conductive column 8.9 in the insulating sleeve 8.2, so as to facilitate the connection between the conductive column 8.9 and the insulating sleeve 8.2; Further, there are two inlet terminals 1, outlet terminals 3 and mutual inductors 6, and four conductive seats 7 are provided correspondingly, that is, two-phase electricity. According to actual needs, three inlet terminals and outlet terminals and six conductive seats can also be provided; In addition, the insulating base 9 is fixedly connected to the bottom of the box body 1 by bolts; the cover plate 5 is fixedly connected to the box body 2 by screws, which is convenient for disassembly and installation.
[0016] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and it is intended that all changes that fall within the meaning and scope of equivalent elements are included in the content of the present invention.
Claims
1. A power supply safety monitoring device, comprising a box (2), characterized in that: An insulating base (9) is provided at the bottom of the box body (2), and at least two conductive seats (7) are provided on the top of the insulating base (9) and are arranged opposite to each other and spaced apart. The two conductive seats (7) are switched on and off by a conducting assembly (8); an inlet terminal (1) is provided on one side of the outer wall of the box body (2), and the inlet terminal (1) is connected to one of the conductive seats (7); an outlet terminal (3) is provided on the other side of the outer wall of the box body (2), and the outlet terminal (3) is connected to another conductive seat (7); The conduction component (8) comprises an electromagnetic suction cup (8.8) and a movable plate (8.5), wherein the movable plate (8.5) is located directly above the electromagnetic suction cup (8.8), and the movable plate (8.5) is movably sleeved with two fixed rods (8.6), wherein the fixed rods (8.6) are fixedly connected to an insulating base (9), and a spring (8.7) is sleeved on the fixed rods (8.6), wherein two ends of the spring (8.7) respectively contact the movable plate (8.5) and the insulating base (9), and the upper end of the movable plate (8.5) is A vertical rod (8.4) is provided, the vertical rod (8.4) is connected to a horizontal rod (8.3), the end of the horizontal rod (8.3) is connected to a conductive column (8.9), the two ends of the two conductive columns (8.9) correspond to the two conductive seats (7) respectively, when the electromagnetic suction cup (8.8) is energized, the electromagnetic suction cup (8.8) absorbs the movable plate (8.5) to move downward and compress the spring (8.7), the movable plate (8.5) drives the conductive column (8.9) to move downward and make its two ends contact with the two conductive seats (7) respectively; The box (2) is also provided with a mutual inductor (6) for detecting the voltage or current of the incoming line end (1); a cover plate (5) is provided on the upper part of the box (2); a PLC controller (4) is provided on the upper part of the cover plate (5); the mutual inductor (6) feeds back a signal to the PLC controller (4); and the PLC controller (4) controls the action of the electromagnetic chuck (8.8).
2. A power supply safety monitoring device according to claim 1, characterized in that: The conductive seat (7) is connected to the insulating base (9) via insulating bolts; a bolt hole (7.4) adapted to the insulating bolt is provided at the bottom of the conductive seat (7); a plug hole (7.3) adapted to the incoming line terminal (1) or the outgoing line terminal (3) is provided on the side of the conductive seat (7); and a fastening bolt (7.2) is provided on the conductive seat (7) for fastening the incoming line terminal (1) or the outgoing line terminal (3) in the plug hole (7.3).
3. A power supply safety monitoring device according to claim 1, characterized in that: The upper part of the conductive seat (7) is provided with a U-shaped groove (7.1) adapted to the conductive column (8.9).
4. A power supply safety monitoring device according to claim 1, characterized in that: The crossbar (8.3) and the vertical bar (8.4) are both insulating bars. An insulating sleeve (8.2) is provided at the end of the crossbar (8.3). The conductive column (8.9) is inserted into the insulating sleeve (8.2). The insulating sleeve (8.2) is threadedly connected with a locking screw (8.1) that fixes the conductive column (8.9) in the insulating sleeve (8.2).
5. A power supply safety monitoring device according to claim 1, characterized in that: The line-in terminal (1), the line-out terminal (3) and the mutual inductor (6) are each provided with two, and the conductive base (7) is correspondingly provided with four.
6. A power supply safety monitoring device according to claim 1, characterized in that: The insulating base (9) is fixedly connected to the inner bottom of the box body (1) by means of bolts.
7. A power supply safety monitoring device according to claim 1, characterized in that: The cover plate (5) is fixedly connected to the box body (2) by means of screws.