Multi-channel magnetic field collector for phasing of closed switch cabinet

Abstract

The utility model discloses a multichannel magnetic field collector used for enclosed switch cabinet phasing. The multichannel magnetic field collector comprises a collector body, a rotating shaft and scale marks. One side of the surface of the collector body is provided with a charging port, and the surface of the collector body is provided with a button below the charging port; the rotating shaft is arranged on the side edge of the collector body; according to the utility model, the collector body can be placed on the back surface or the top of a switch cabinet to adapt to different installation environments and requirements, and can be conveniently used in various power distribution cabinet scenes; by sensing and collecting magnetic field phase information and comparing the magnetic field phase information with a base station phase, the phase of the three-phase cable in the cabinet can be accurately measured, and phasing work is effectively completed; by means of the spring, the moving block, the concave frame, the protective pad and other components, under the conditions that normal use of equipment is not affected and operation can be conducted through the pull ring, effective protection is provided for the rear side of the collector body, damage possibly caused by collision, friction and the like of the equipment is reduced, the service life of the equipment is prolonged, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic field collectors, in particular to a multi-channel magnetic field collector used for phasing of closed switch cabinets. Background Art

[0002] The multi-channel magnetic field collector for closed switchgear phase determination is a device specifically used for phase identification in distribution cabinets. It is mainly used to collect the current magnetic field phase information of the incoming and outgoing cable heads or cable connection metal bars in the closed switchgear, and achieve accurate phase determination by comparing it with the base station phase. At the same time, it can also determine the operating status of the switchgear and the type of incoming and outgoing cables.

[0003] In existing technologies, most collectors can only be installed in specific locations or a single manner. For example, they can only be installed in a fixed position on the switchgear, such as the front or side. These collectors cannot adapt to the structural differences between different switchgears and the diversity of actual installation environments. This can make effective installation and use difficult in some distribution cabinets with special layouts or limited space, reducing the device's applicability in different scenarios and limiting its widespread application in complex power systems. Furthermore, most collectors lack adequate protection for parts of the device that are susceptible to collision and friction, such as the rear side. In actual use, the collector is susceptible to collision and friction from other components inside the distribution cabinet or external factors. Long-term accumulation of these damages can cause damage to the device, affecting its service life and stability, increasing the frequency of equipment repair and replacement, and increasing maintenance costs, making it inconvenient to use. In light of this, we have introduced a multi-channel magnetic field collector for phasing in enclosed switchgear. Utility Model Content

[0004] The purpose of the present utility model is to provide a multi-channel magnetic field collector for phasing of a closed switch cabinet, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a multi-channel magnetic field collector for phasing of a closed switch cabinet, comprising: a collector body, a rotating shaft and scale lines;

[0006] A charging port is provided on one side of the surface of the collector body, and the charging port is used to charge the collector body. A button is provided on the surface of the collector body below the charging port, and the button is used to control the opening and closing of the collector body;

[0007] The rotating shaft is arranged on the side of the collector body, the rotating shaft is rotatably connected to the side of the collector body, and the side of the rotating shaft is provided with a concave frame;

[0008] The scale lines are arranged at equal intervals on the surface of the collector body, and there are five groups of scale lines, and the five groups of scale lines represent the positions of the built-in sensors. A protective mechanism is provided on the inner side of the concave frame, and the spring of the protective mechanism drives the moving block, the concave frame and the protective pad to move downward, so that the concave frame and the protective pad protect the rear side of the collector body.

[0009] Preferably, the protective mechanism includes a cavity opened on the inner side of the concave frame, and the cavity and the concave frame are integrally formed. The interior of the cavity is connected to a limit rod, and the limit rod is fixedly connected to the interior of the cavity. The movable block is slidably connected to the surface of the limit rod. The movement of the movable block can be limited by the setting of the limit rod. The spring is sleeved on the surface of the limit rod and is located at the top of the movable block. The concave frame is connected to the side of the movable block, and the concave frame and the movable block are fixedly set. The protective pad is connected to the inner side of the concave frame, and the protective pad and the concave frame are fixedly set.

[0010] Preferably, a pull ring is connected to the top of the concave frame, and the pull ring can pull the concave frame.

[0011] Preferably, a charging indicator light is connected to the surface of the collector body. When the collector body is charging, the charging indicator light indicates red for charging and green for full charge. A status indicator light is connected to the surface of the collector body on one side of the charging indicator light. The green light of the status indicator light flashes intermittently to indicate the power-on state, and the green light flashes alternately to indicate successful communication.

[0012] Preferably, an arrow is provided on the surface of the collector body, and the setting of the arrow indicates the running direction of the switch cabinet cable.

[0013] Compared with the existing technology, the beneficial effects of the present invention are: the collector body can be placed on the back or top of the switch cabinet, adapting to different installation environments and requirements, and conveniently used in various distribution cabinet scenarios, thereby improving the versatility and adaptability of the equipment;

[0014] By inductively collecting magnetic field phase information and comparing it with the base station phase, the three-phase cable phase in the switchgear can be accurately measured, effectively completing the phase determination work. This provides a reliable basis for judging the operating status of the switchgear and the conditions of the cable inlet and outlet, contributing to the stable operation and maintenance management of the power system.

[0015] The charging indicator and status indicator clearly display the charging and working status respectively, making it easy for operators to understand the equipment status at any time. The setting of scale lines and arrows helps to more accurately position the equipment, adjust the angle or determine the direction during operation, improving the accuracy and convenience of operation.

[0016] By using components such as springs, moving blocks, concave frames and protective pads, the rear side of the collector body can be effectively protected by operating the pull ring without affecting the normal use of the equipment, reducing damage to the equipment caused by collision, friction, etc., extending the service life of the equipment and reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the utility model from a top view;

[0019] Figure 3 This is a schematic diagram of the structure of the concave frame of the utility model when it moves inside the concave frame;

[0020] Figure 4 This is the structural block diagram of the collector of this utility model.

[0021] In the figure: 1. Collector body; 2. Scale line; 3. Charging port; 4. Status indicator light; 5. Charging indicator light; 6. Button; 7. Arrow; 8. Concave frame; 9. Protective pad; 10. Concave frame; 11. Pull ring; 12. Rotating shaft; 13. Cavity; 14. Limit rod; 15. Spring; 16. Moving block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-4 The utility model provides a technical solution: a multi-channel magnetic field collector for closed switch cabinet phasing, comprising: a collector body 1, a charging port 3 is provided on one side of the surface of the collector body 1, and a button 6 is provided on the surface of the collector body 1 below the charging port 3;

[0024] A rotating shaft 12, which is arranged on the side of the collector body 1, and a concave frame 8 is provided on the side of the rotating shaft 12;

[0025] The scale lines 2 are arranged at equal intervals on the surface of the collector body 1. A protective mechanism is provided on the inner side of the concave frame 8. The spring 15 of the protective mechanism drives the moving block 16, the concave frame 10 and the protective pad 9 to move downward, so that the concave frame 10 and the protective pad 9 protect the rear side of the collector body 1.

[0026] The protective mechanism includes a cavity 13 opened on the inner side of the concave frame 8, and the cavity 13 and the concave frame 8 are integrally formed. The interior of the cavity 13 is connected to a limit rod 14, and the limit rod 14 is fixedly connected to the interior of the cavity 13. The moving block 16 is slidably connected to the surface of the limit rod 14. The movement of the moving block 16 can be limited by the setting of the limit rod 14. The spring 15 is sleeved on the surface of the limit rod 14 and is located at the top of the moving block 16. The concave frame 10 is connected to the side of the moving block 16, and the concave frame 10 and the moving block 16 are fixedly set. The protective pad 9 is connected to the inner side of the concave frame 10, and the protective pad 9 and the concave frame 10 are fixedly set.

[0027] A pull ring 11 is connected to the top of the concave frame 10 , and the pull ring 11 can pull the concave frame 10 .

[0028] A charging indicator light 5 is connected to the surface of the collector body 1. When the collector body 1 is charging, the charging indicator light 5 indicates charging when red and full when green. A status indicator light 4 is connected to the surface of the collector body 1 on one side of the charging indicator light 5. The status indicator light 4 flashes green intermittently to indicate the power-on state, and flashes green alternately to indicate successful communication.

[0029] The surface of the collector body 1 is provided with an arrow 7, which indicates the direction of the switch cabinet cable. Figure 4 As shown, the collector body 1 is integrated by the following modules, that is, the collector body 1 includes the following modules:

[0030] 1. Sensor array module:

[0031] Multiple magnetic field sensor units: These consist of multiple magnetic field-sensitive sensor elements, such as Hall sensors and fluxgate sensors. These sensors are evenly distributed across the acquisition area to measure magnetic fields at different locations. Each sensor corresponds to an independent channel and converts magnetic field strength information into an electrical signal output.

[0032] 2. Signal conditioning circuit module:

[0033] Preamplifier: Amplifies the weak electrical signal output by the sensor, increasing the signal amplitude for subsequent processing. Sensor signals from different channels are connected to corresponding preamplifiers to ensure signal independence and accuracy.

[0034] Filter circuit: Use low-pass, high-pass, or band-pass filters to remove noise and interference components in the signal, such as high-frequency electromagnetic interference and power supply ripple, making the signal purer and improving measurement accuracy. The signal of each channel must be filtered after amplification.

[0035] 3. Multiplexer module:

[0036] Multi-channel analog switches: These switches sequentially switch multiple conditioned channel signals to subsequent processing units, enabling time-division multiplexing of multi-channel signals on a single processing path, reducing circuit complexity and cost. Control signals are used to select signals from different channels for transmission.

[0037] 4. Analog-to-digital converter (ADC) module:

[0038] ADC chip: This chip converts the analog signal output from the multiplexer into a digital signal for processing by a digital signal processor (DSP) or microcontroller (MCU). The ADC's sampling frequency and resolution must be selected based on the frequency range of the magnetic field and the required measurement accuracy to ensure accurate digitization of the analog signal.

[0039] 5. Data processing and control module:

[0040] Microprocessor (MCU) or Digital Signal Processor (DSP): This module processes the digital signals converted by the ADC, including data calibration, compensation, and algorithmic operations. For example, it corrects the measured values ​​based on sensor characteristics and calibration data to eliminate the effects of temperature drift, nonlinear errors, and other factors. It can also perform magnetic field data fusion processing to improve measurement accuracy and reliability. This module also controls the entire data collector workflow, such as sensor initialization, signal conditioning circuit parameter setting, multiplexer channel switching, ADC startup, and data reading.

[0041] Storage unit: used to store collected magnetic field data, calibration parameters, configuration information, etc. Non-volatile memory, such as flash memory or electrically erasable programmable read-only memory (EEPROM), can be used to ensure that data is not lost after power failure.

[0042] 6. Communication interface module:

[0043] Serial port (such as UART, SPI, I2C, etc.): transmits processed data to external devices such as computers and data loggers for further analysis, display, and storage. Users can set parameters and send control commands to the collector through the communication interface.

[0044] Wireless communication module (optional): Such as Bluetooth, Wi-Fi or other wireless transmission modules, to achieve wireless data transmission between the collector and remote devices, increasing the flexibility and convenience of the system, suitable for some application scenarios that require wiring or remote monitoring.

[0045] 7. Power management module:

[0046] Power supply circuit: Provides a stable power supply for the entire multi-channel magnetic field collector. It can be powered by batteries or an external power adapter. The power supply circuit requires voltage stabilization and filtering to ensure the normal operation of each module. Low power consumption should also be considered to extend battery life (if powered by batteries).

[0047] Power supply monitoring and management unit: monitors the voltage, current and other parameters of the power supply in real time. When the power supply is insufficient or abnormal, it will promptly issue an alarm signal and take corresponding energy-saving measures, such as shutting down some non-critical modules or reducing the system's operating frequency.

[0048] Specifically, when in use, the collector body 1 can be placed on the back or top of the switch cabinet. Before use, the device is charged through the charging port 3 on the surface of the collector body 1. During the charging process, the charging status can be understood according to the charging indicator light 5. At the same time, the status indicator light 4 on the surface of the collector body 1 can display the working status of the device, such as power on, communication, etc.

[0049] The current magnetic field phase information of the incoming and outgoing cable heads or cable connection metal bars in the closed switch cabinet is collected by induction. Multiple components on the collector body 1 work together, including internal sensors and other components to realize the magnetic field phase information collection function;

[0050] The collected phase information is compared with the base station phase to accurately measure the phase of the three-phase A, B, and C cables in the cabinet, completing the phasing work. It can also determine whether the closed switch cabinet is an operating cabinet or a non-operating cabinet, and whether the three-phase cable of the closed switch cabinet is an incoming cabinet or an outgoing cabinet. During the collection process, the scale lines 2 on the surface of the collector body 1 are used to assist in determining related operations such as the collection angle or position. The arrow 7 may indicate the installation direction of the equipment or the data collection direction.

[0051] The rotating shaft 12 on the side of the collector body 1 is connected to the concave frame 8. The inner side of the concave frame 8 protects the rear side of the collector body 1 through a protective mechanism. In the protective mechanism, the limit rod 14 in the cavity 13 limits the movement direction of the movable block 16. The spring 15 drives the movable block 16, the concave frame 10 and the protective pad 9 downward in the natural state, so that the concave frame 10 and the protective pad 9 play a protective role on the rear side of the collector body 1.

[0052] When the rear side needs to be operated, such as for maintenance or debugging, the concave frame 10 can be pulled upwards by the pull ring 11 to overcome the elastic force of the spring 15, so that the protective pad 9 leaves the rear side of the collector body 1, and the concave frame 8 is rotated so that the concave frame 8 rotates on the surface of the rotating shaft 12 to the top of the collector body 1. At this time, the rear side of the collector body 1 can be exposed, making it easier for the collector body 1 to detect the enclosed switch cabinet, thereby facilitating operation. After the operation is completed, the pull ring 11 is released, and the spring 15 restores its deformation, driving the concave frame 10 and the protective pad 9 to move down again for protection.

[0053] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-channel magnetic field collector for closed switch cabinet phasing, characterized in that: include: A collector body (1), wherein a charging port (3) is provided on one side of a surface of the collector body (1), and a button (6) is provided on the surface of the collector body (1) below the charging port (3); A rotating shaft (12), the rotating shaft (12) is arranged on the side of the collector body (1), and a concave frame (8) is arranged on the side of the rotating shaft (12); Graduation lines (2) are arranged at equal intervals on the surface of the collector body (1); a protective mechanism is provided on the inner side of the concave frame (8); a spring (15) of the protective mechanism drives the moving block (16), the concave frame (10) and the protective pad (9) to move downward, so that the concave frame (10) and the protective pad (9) protect the rear side of the collector body (1).

2. The multi-channel magnetic field collector for closed switch cabinet phasing according to claim 1, characterized in that: The protective mechanism includes a cavity (13) opened on the inner side of the concave frame (8), the interior of the cavity (13) is connected to a limiting rod (14), the moving block (16) is slidably connected to the surface of the limiting rod (14), the spring (15) is sleeved on the surface of the limiting rod (14) and is located on the top of the moving block (16), the concave frame (10) is connected to the side of the moving block (16), and the protective pad (9) is connected to the inner side of the concave frame (10).

3. The multi-channel magnetic field collector for closed switch cabinet phasing according to claim 2, characterized in that: The top of the concave frame (10) is connected with a pull ring (11).

4. The multi-channel magnetic field collector for closed switch cabinet phasing according to claim 1, characterized in that: The surface of the collector body (1) is connected to a charging indicator light (5), and the surface of the collector body (1) is connected to a status indicator light (4) on one side of the charging indicator light (5).

5. The multi-channel magnetic field collector for closed switch cabinet phasing according to claim 1, characterized in that: An arrow (7) is provided on the surface of the collector body (1).

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