A dynamically responsive power monitoring module

Abstract

This utility model relates to the field of power monitoring technology and discloses a dynamic response power monitoring module, including a housing. A resistor is fixedly connected to the inner bottom wall of the housing. Two symmetrical mounting plates are fixedly connected to the upper surface of the resistor. A first miniature deep groove ball bearing is fixedly connected to one side of each of the two mounting plates that are close to each other. A metal plate is fixedly connected to the inner ring of the two first miniature deep groove ball bearings. The bottom surface of the metal plate is in contact with the upper surface of the resistor. This device uses the contact setting between the resistor and the metal plate. When the power parameters change, the resistor heats up, causing the metal plate to deform. This deformation, combined with the first miniature deep groove ball bearing, allows the metal plate to rotate more flexibly. Then, the second miniature deep groove ball bearing on the steering column and the rotating shaft drive the L-shaped movable rod to rotate, so that the movable contact and the fixed contact make contact and conduct signals. This avoids the microsecond-level delay problem of pure electronic sensors and accurately captures nanosecond-level instantaneous pulses.

Description

Technical Field

[0001] This utility model relates to the field of power monitoring technology, and more specifically, to a dynamic response power monitoring module. Background Technology

[0002] Power monitoring is a technical means of collecting and analyzing electrical parameters such as voltage, current and power in a power system in real time to understand the power operation status and ensure the stability and efficiency of the power system. In complex and ever-changing power scenarios (such as industrial load fluctuations and the access of new energy sources), power monitoring needs to have dynamic response capabilities to capture changes in electrical parameters in a timely manner and provide accurate basis for power regulation and fault early warning.

[0003] In complex power scenarios (such as sudden changes in industrial load or lightning overvoltage), the capture of instantaneous electrical parameter fluctuations requires extremely high response speed and anti-interference capabilities. Existing dynamic response monitoring modules mostly rely on pure electronic sensors to collect signals. The sensors and signal processing units are often rigidly connected by ordinary wires. When faced with instantaneous large currents and voltage changes, electromagnetic interference can easily couple into the signal link through the wires, leading to deviations in electrical parameter acquisition. Furthermore, electronic sensors themselves have microsecond-level delays in response, making it difficult to accurately capture nanosecond-level instantaneous pulses. At the same time, pure electronic solutions have limited ability to sense minute changes in electrical parameters. Small voltage fluctuations and weak current pulses are easily drowned out by electronic noise, resulting in insufficient sensitivity and reliability of dynamic response. This fails to meet the need for accurate capture of all types of electrical parameter fluctuations in the refined monitoring of power systems. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the above situation and to overcome the defects of the prior art, this utility model provides a dynamic response power monitoring module, which aims to solve the problems in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this application provides the following technical solution: a dynamic response power monitoring module, comprising a housing, a resistor fixedly connected to the inner bottom wall of the housing, two symmetrical mounting plates fixedly connected to the upper surface of the resistor, a first miniature deep groove ball bearing fixedly connected to the side of each of the two mounting plates that are close to each other, a metal plate fixedly connected to the inner ring of the two first miniature deep groove ball bearings, the bottom surface of the metal plate contacting the upper surface of the resistor, a steering column and a fixed contact sequentially fixedly connected to the inner bottom wall of the housing and to the right of the resistor, two second miniature deep groove ball bearings fixedly connected to the top inner wall of the steering column, a rotating shaft fixedly connected to the inner ring of the two second miniature deep groove ball bearings, an L-shaped movable rod disposed above the metal plate, the outer surface of the long end of the L-shaped movable rod contacting the upper surface of the metal plate, the inner wall of the L-shaped movable rod fixedly connected to the outer surface of the rotating shaft, and a movable contact fixedly connected to the bottom end of the short end of the L-shaped movable rod, the movable contact and the fixed contact having a certain distance between them.

[0008] The present invention is further configured such that a reset groove is provided on the inner bottom wall of the top of the steering column, a miniature compression spring is fixedly connected to the inner bottom wall of the reset groove, a support head is fixedly connected to the top of the miniature compression spring, the outer surface of the support head is slidably connected to the interior of the reset groove, and the top of the support head is in contact with the outer surface of the corner of the L-shaped movable rod.

[0009] The present invention is further configured such that a limiting seat is fixedly connected to the upper left surface of the metal sheet, and the outer surface of the L-shaped movable rod is located inside the limiting seat and has a certain distance from the inner wall of the limiting seat.

[0010] The present invention is further configured such that a support is fixedly connected to the inner bottom wall of the outer shell and to the left side of the resistor, a circuit board is fixedly connected to the upper surface of the support, and a protective shell is fixedly connected to the inner bottom wall of the outer shell by bolts, with the resistor and the circuit board both located below the protective shell.

[0011] The present invention is further configured such that a sealing door is movably hinged to the upper surface of the outer shell, and a fixing plate is fixedly connected to both the front and back of the outer shell, with a fixing bolt threaded onto the inner wall of each fixing plate.

[0012] The present invention is further configured such that two power input interfaces and a signal output interface are respectively provided on the left side and the front side of the housing, an alarm and a terminal block are fixedly connected to the left side of the housing, and the circuit board is electrically connected to the fixed contact, the movable contact, the alarm and the terminal block through wires.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. By setting up a contact between a resistor and a metal plate, the resistor heats up when the power parameters change, causing the metal plate to deform. This, combined with the first miniature deep groove ball bearing, allows the metal plate to rotate more flexibly. Then, the second miniature deep groove ball bearing on the steering column and the rotating shaft drive the L-shaped movable rod to rotate, so that the movable contact and the fixed contact can make contact and conduct signals. This avoids the microsecond-level delay problem of pure electronic sensors and accurately captures nanosecond-level instantaneous pulses.

[0016] 2. By electrically connecting the circuit board to the fixed and movable contacts, the mechanical trigger signal is converted into an electrical signal output. Combined with the reset action of the miniature compression spring in the reset slot and the reset action of the support head, as well as the limit seat's limit on the L-shaped movable rod, the mechanical structure is ensured to work stably, avoiding signal deviation caused by electromagnetic interference. This solves the problem of insufficient sensing capability of pure electronic solutions for minute changes in electrical parameters and easy overwhelming by electronic noise, improving the sensitivity and reliability of dynamic response and meeting the needs of refined monitoring of power systems. Attached Figure Description

[0017] Figure 1 This is a three-dimensional overall structural diagram of the present invention;

[0018] Figure 2 This is a three-dimensional sectional view of the outer shell of this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the circuit board of this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the steering column of this utility model;

[0021] Figure 5 This is a three-dimensional structural diagram of the resistor element of this utility model;

[0022] Figure 6 This is a three-dimensional enlarged structural diagram of the miniature compression spring of this utility model.

[0023] In the diagram: 1. Outer shell; 2. Alarm; 3. Power input interface; 4. Wiring terminal; 5. Signal output interface; 6. Fixing plate; 7. Fixing bolt; 8. Sealing door; 9. Protective shell; 10. Support; 11. Resistor element; 12. Metal sheet; 13. L-shaped movable rod; 14. Circuit board; 15. Steering column; 16. Fixed contact; 17. Mounting plate; 18. Limit seat; 19. First miniature deep groove ball bearing; 20. Rotating shaft; 21. Second miniature deep groove ball bearing; 22. Support head; 23. Miniature compression spring; 24. Reset groove; 25. Movable contact. Detailed Implementation

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0026] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0027] Please see Figures 1-6 The system includes a housing 1. A resistor 11 is fixedly connected to the inner bottom wall of the housing 1. Two symmetrical mounting plates 17 are fixedly connected to the upper surface of the resistor 11. First miniature deep groove ball bearings 19 are fixedly connected to the side of each mounting plate 17 that is close to each other. A metal plate 12 is fixedly connected to the inner ring of the two first miniature deep groove ball bearings 19. The bottom surface of the metal plate 12 contacts the upper surface of the resistor 11. A steering column 15 and a fixed contact 16 are sequentially fixedly connected to the inner bottom wall of the housing 1, located to the right of the resistor 11. Two second miniature deep groove ball bearings 21 are fixedly connected to the inner wall of the top of the column 15. The inner rings of the two second miniature deep groove ball bearings 21 are fixedly connected to the rotating shaft 20. An L-shaped movable rod 13 is provided above the metal plate 12. The outer surface of the long end of the L-shaped movable rod 13 is in contact with the upper surface of the metal plate 12. The inner wall of the L-shaped movable rod 13 is fixedly connected to the outer surface of the rotating shaft 20. The bottom end of the short end of the L-shaped movable rod 13 is fixedly connected to a movable contact 25. The movable contact 25 and the fixed contact 16 have a certain distance between them.

[0028] Specifically, when the electrical parameters change, the resistor 11 heats up due to the current flowing through it, and the heat is transferred to the metal plate 12 in contact with it. The metal plate 12 deforms due to the heat and rotates around the first miniature deep groove ball bearing 19. The rotation of the metal plate 12 pushes the long end of the L-shaped movable rod 13. The L-shaped movable rod 13 rotates around the steering column 15 through the cooperation of the rotating shaft 20 and the second miniature deep groove ball bearing 21, causing the short end movable contact 25 to move towards the fixed contact 16 and make contact, thereby conducting the signal. The linkage response speed is relatively fast, which can avoid the microsecond-level delay of pure electronic sensors, accurately capture nanosecond-level instantaneous pulses, and solve the problem of response delay of electronic sensors in the prior art.

[0029] Please see Figures 1-6The inner bottom wall of the top of the steering column 15 is provided with a reset groove 24. A miniature compression spring 23 is fixedly connected to the inner bottom wall of the reset groove 24. A support head 22 is fixedly connected to the top of the miniature compression spring 23. The outer surface of the support head 22 is slidably connected to the inside of the reset groove 24. The top of the support head 22 is in contact with the outer surface of the corner of the L-shaped movable rod 13.

[0030] Specifically, when the L-shaped movable rod 13 rotates, its corner presses against the support head 22. The support head 22 compresses the miniature compression spring 23 in the reset groove 24 and slides within the reset groove 24. When the power parameters return to normal, the miniature compression spring 23 releases its elastic potential energy to push the support head 22 upward, causing the L-shaped movable rod 13 to reset. The movable contact 25 separates from the fixed contact 16. This structure, through the reset action of the miniature compression spring 23 and the support head 22, ensures that the L-shaped movable rod 13 can automatically reset after being triggered, ensuring the stable operation of the mechanical structure and avoiding signal misjudgment caused by mechanical jamming.

[0031] Please see Figures 1-6 The upper left side surface of the metal sheet 12 is fixedly connected to the limiting seat 18, and the outer surface of the L-shaped movable rod 13 is located inside the limiting seat 18 and has a certain distance from the inner wall of the limiting seat 18.

[0032] Specifically, the limiting seat 18 on the upper left side of the metal sheet 12 is fitted over the L-shaped movable rod 13. A certain distance is left between the L-shaped movable rod 13 and the inner wall of the limiting seat 18. When the L-shaped movable rod 13 rotates, the limiting seat 18 restricts its range of motion to prevent the L-shaped movable rod 13 from rotating excessively or deviating. This ensures accurate alignment and reliable contact between the movable contact 25 and the fixed contact 16, solves the problem of deviation during mechanical structure movement, and improves the accuracy of dynamic response.

[0033] Please see Figures 1-6 A support 10 is fixedly connected to the inner bottom wall of the outer casing 1 and to the left of the resistor 11. A circuit board 14 is fixedly connected to the upper surface of the support 10. A protective shell 9 is fixedly connected to the inner bottom wall of the outer casing 1 by bolts. The resistor 11 and the circuit board 14 are both located below the protective shell 9.

[0034] Specifically, the support 10 fixes the circuit board 14 to the left side of the resistor 11 on the inner bottom wall of the housing 1. The protective shell 9 is fixed to the inner bottom wall of the housing 1 with bolts, covering the resistor 11 and the circuit board 14 underneath. The protective shell 9 can protect the resistor 11 and the circuit board 14 from external dust, moisture and other interference, and at the same time play an electromagnetic shielding role for the internal circuit, avoiding signal deviation caused by electromagnetic interference, and ensuring the stable operation of the resistor 11 and the circuit board 14.

[0035] Please see Figures 1-6The upper surface of the outer casing 1 is hinged with a sealing door 8. The front and back of the outer casing 1 are fixedly connected with fixing plates 6. The inner wall of each fixing plate 6 is threaded with fixing bolts 7. The left side and front of the outer casing 1 are respectively opened with two power input interfaces 3 and signal output interfaces 5. The left side of the outer casing 1 is fixedly connected with an alarm 2 and a terminal block 4. The circuit board 14 is electrically connected to the fixed contact 16, the movable contact 25, the alarm 2 and the terminal block 4 through wires.

[0036] Specifically, the sealing door 8 is hinged to the upper surface of the outer casing 1 and can be opened or closed for easy maintenance of the internal structure. The fixing plate 6 and fixing bolts 7 are used to fix the outer casing 1 in place. The power input interface 3 and the signal output interface 5 are used to connect to the power circuit under test and output signals, respectively. The alarm 2 and the terminal block 4 are fixed on the left side of the outer casing 1. The circuit board 14 is electrically connected to the fixed contact 16, the movable contact 25, the alarm 2 and the terminal block 4 through wires. When the movable contact 25 contacts the fixed contact 16, the circuit board 14 processes the signal and transmits it to the external system through the signal output interface 5, and at the same time triggers the alarm 2. The terminal block 4 can be used to connect to an external power supply or other equipment. This structure realizes the functions of module installation, signal transmission and alarm, and meets the actual application needs of power monitoring.

[0037] Working principle:

[0038] When the electrical parameters change, the resistor 11 heats up, causing the metal plate 12 in contact with it to deform and rotate around the first miniature deep groove ball bearing 19. The metal plate 12 pushes the long end of the L-shaped movable rod 13. The L-shaped movable rod 13 rotates around the steering column 15 through the cooperation of the rotating shaft 20 and the second miniature deep groove ball bearing 21, causing the movable contact 25 at the short end to contact the fixed contact 16 to conduct a signal. At this time, the corner of the L-shaped movable rod 13 presses against the support head 22, and the support head 22 compresses the miniature compression spring 23 in the reset groove 24 and slides in the reset groove 24. The limiting seat 18 on the left side of the metal plate 12 restricts the range of motion of the L-shaped movable rod 13, preventing... To prevent excessive rotation, the circuit board 14 is electrically connected to the fixed contact 16 and the movable contact 25 via wires, converting the mechanical trigger signal into an electrical signal, which is transmitted to the external system via the signal output interface 5. At the same time, the alarm 2 is triggered. After the power parameters return to normal, the miniature compression spring 23 pushes the support head 22 to reset the L-shaped movable rod 13, and the movable contact 25 separates from the fixed contact 16. The protective shell 9 protects the resistor 11 and the circuit board 14 from external interference, avoiding the response delay of pure electronic sensors and signal deviation caused by electromagnetic interference, improving the sensitivity and reliability of dynamic response, and meeting the needs of refined monitoring of power systems.

[0039] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A dynamically responsive power monitoring module comprising a housing (1) characterised in that: A resistor (11) is fixedly connected to the inner bottom wall of the outer casing (1). Two symmetrical mounting plates (17) are fixedly connected to the upper surface of the resistor (11). A first miniature deep groove ball bearing (19) is fixedly connected to the side of the two mounting plates (17) that are close to each other. A metal plate (12) is fixedly connected to the inner ring of the two first miniature deep groove ball bearings (19). The bottom surface of the metal plate (12) is in contact with the upper surface of the resistor (11). A steering column (15) and a fixed contact (16) are fixedly connected sequentially to the inner bottom wall of the outer casing (1) and to the right of the resistor (11). The steering column ( Two second miniature deep groove ball bearings (21) are fixedly connected to the inner wall of the top of the metal sheet (15). The inner rings of the two second miniature deep groove ball bearings (21) are fixedly connected to a rotating shaft (20). An L-shaped movable rod (13) is provided above the metal sheet (12). The outer surface of the long end of the L-shaped movable rod (13) is in contact with the upper surface of the metal sheet (12). The inner wall of the L-shaped movable rod (13) is fixedly connected to the outer surface of the rotating shaft (20). The bottom end of the short end of the L-shaped movable rod (13) is fixedly connected to a movable contact (25). The movable contact (25) and the fixed contact (16) have a certain distance.

2. A dynamically responsive power monitoring module according to claim 1, characterized in that: The inner bottom wall of the top of the steering column (15) is provided with a reset groove (24). A miniature compression spring (23) is fixedly connected to the inner bottom wall of the reset groove (24). A support head (22) is fixedly connected to the top of the miniature compression spring (23). The outer surface of the support head (22) is slidably connected to the inside of the reset groove (24). The top of the support head (22) is in contact with the outer surface of the corner of the L-shaped movable rod (13).

3. A dynamically responsive power monitoring module according to claim 1, wherein: The upper left side surface of the metal sheet (12) is fixedly connected to the limiting seat (18), and the outer surface of the L-shaped movable rod (13) is located inside the limiting seat (18) and has a certain distance from the inner wall of the limiting seat (18).

4. The dynamically responsive power monitoring module of claim 1, wherein: A support (10) is fixedly connected to the inner bottom wall of the outer shell (1) and to the left of the resistor (11). A circuit board (14) is fixedly connected to the upper surface of the support (10). A protective shell (9) is fixedly connected to the inner bottom wall of the outer shell (1) by bolts. The resistor (11) and the circuit board (14) are both located below the protective shell (9).

5. The dynamically responsive power monitoring module of claim 1, wherein: The upper surface of the outer shell (1) is hinged with a sealing door (8), and the front and back of the outer shell (1) are fixedly connected with fixing plates (6), and the inner wall of each fixing plate (6) is threaded with fixing bolts (7).

6. A dynamically responsive power monitoring module according to claim 4, wherein: The outer casing (1) has two power input interfaces (3) and a signal output interface (5) on its left and front sides, respectively. An alarm (2) and a terminal block (4) are fixedly connected to the left side of the outer casing (1). The circuit board (14) is electrically connected to the fixed contact (16), the movable contact (25), the alarm (2), and the terminal block (4) through wires.

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