Layered anti-magnetic interference mutual inductor coil anti-saturation device

Abstract

The utility model discloses layered formula anti -magnetic interference mutual -inductor coil anti -saturation device, including sensing mechanism and control mechanism, sensing mechanism includes skeleton no.

Description

Technical Field

[0001] This utility model relates to the technical field of anti-saturation devices, specifically a layered anti-magnetic interference transformer coil anti-saturation device. Background Technology

[0002] Instrument transformers, also known as instrument transformers, are a general term encompassing current transformers and voltage transformers. They are primary devices that enable communication between primary and secondary electrical systems. Instrument transformers transform the high voltage and large current of the primary system into low voltage and small current for use by measuring instruments, relay protection devices, and automatic devices in the secondary system. They serve as both a connecting element and an isolating element between the primary and secondary systems in a power system.

[0003] The coils of traditional current transformers have a fixed structure and their performance parameters cannot be adjusted. This makes it difficult to meet the conflicting requirements of high-precision small current measurement and resistance to large current surges, and it cannot adapt to complex and ever-changing working conditions, thus becoming a bottleneck for improving system performance. Utility Model Content

[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] Therefore, the technical solution adopted by this utility model is as follows:

[0006] A layered anti-magnetic interference transformer coil anti-saturation device includes a sensing mechanism and a control mechanism. The sensing mechanism includes a first frame, a second frame inserted into the first frame, an inner winding detachably connected between the first and second frames, and an outer winding wound between the first and second frames. The control mechanism includes a switching circuit board fixed to the front side of the first frame, an MCU integrated on the front side of the switching circuit board, a current detection chip, a switching actuator, and a power chip.

[0007] By adopting the above technical solution, the current detection chip can detect the current in the circuit in real time and accurately, providing accurate data support for the MCU's decision-making. When the MCU determines that the current trend is about to cause the inner winding to reach 80% of the saturation flux, it immediately sends a command to the switching actuator to disconnect the output circuit of the inner winding. At the same time, it connects the outer winding, thereby avoiding saturation and realizing the switching function of the circuit to meet the needs of different working states.

[0008] In a preferred embodiment, the present invention can be further configured such that: an arc-shaped opening is provided on the skeleton, the arc-shaped opening being suitable for the outer winding to pass through.

[0009] In a preferred embodiment, the present invention can be further configured as follows: the second frame is composed of a baffle and multiple arc-shaped plates, the multiple arc-shaped plates are equally spaced and arranged in a ring and fixed to the inner wall of the second frame, and the arc-shaped plates are inserted into the inner wall of the first frame.

[0010] In a preferred embodiment, the present invention can be further configured such that the outer winding is located outside the inner winding, and the number of turns of the outer winding is less than the number of turns of the inner winding.

[0011] In a preferred embodiment, the present invention can be further configured such that the MCU and the current detection chip are respectively located on one side of the power supply chip and the switching actuator, the MCU is located on top of the current detection chip, and the power supply chip is located on top of the switching actuator.

[0012] In a preferred embodiment, the present invention can be further configured such that: a limiting component is provided on the front side of the frame, the limiting component includes a first baffle that is attached to one side of the switching circuit board and a second baffle that is attached to the other side of the switching circuit board, both the first baffle and the second baffle being fixedly connected to the front side of the switching circuit board.

[0013] In a preferred embodiment, the present invention can be further configured such that: a dustproof component is provided on the front side of the frame, the dustproof component includes two plugs respectively disposed on the top and bottom of the switching circuit board, and a cover slidably connected between the two plugs, the plugs being fixedly connected to the side wall of the baffle.

[0014] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0015] 1. In this utility model, the current detection chip accurately detects the current in the circuit in real time, providing accurate data support for the MCU's decision-making. When the MCU determines that the current trend is about to cause the inner winding to reach 80% of the saturation flux, it immediately sends a command to the switching actuator to disconnect the output circuit of the inner winding. At the same time, it connects the outer winding, thereby avoiding saturation and realizing the switching function of the circuit to meet the needs of different working states.

[0016] 2. In this utility model, the insertion rod 510 is used to fix the cover 520 in a suitable position, and the cover 520 can effectively prevent dust from corroding the components of the control mechanism 200, thereby improving the working stability of the device. Attached Figure Description

[0017] Figure 1 This is a perspective view of the overall structure of this utility model;

[0018] Figure 2 This is an exploded schematic diagram of the sensing mechanism of this utility model;

[0019] Figure 3This is a two-dimensional view of the skeleton of this utility model;

[0020] Figure 4 This is a schematic diagram showing the cooperation relationship between the control mechanism, the limiting component, and the dustproof component of this utility model;

[0021] Figure 5 This is a schematic diagram of the control mechanism of this utility model.

[0022] Figure label:

[0023] 100. Sensing mechanism; 110. Frame 1; 120. Frame 2; 121. Baffle; 122. Arc plate; 130. Inner winding; 140. Outer winding;

[0024] 200. Control mechanism; 210. Switching circuit board; 220. MCU; 230. Current detection chip; 240. Switching actuator; 250. Power supply chip;

[0025] 300, arc mouth;

[0026] 400. Limiting component; 410. Stop bar one; 420. Stop bar two;

[0027] 500. Dustproof component; 510. Insert rod; 520. Protective cover.

[0028] The control mechanism 200 is the core control part of the entire device. The switching circuit board 210 acts as a bridge connecting various electronic components, ensuring stable signal transmission. The MCU 220, like the brain, analyzes and processes the current data fed back from the current detection chip 230, and controls the switching actuator 240 to perform corresponding operations according to a preset program. The switching actuator 240, in turn, implements the circuit switching function according to the instructions of the MCU 220 to meet the needs of different operating states. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0030] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0031] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, a layered anti-magnetic interference transformer coil anti-saturation device.

[0032] Example 1:

[0033] Combination Figure 1-5As shown, the layered anti-magnetic interference transformer coil anti-saturation device provided by this utility model includes a sensing mechanism 100 and a control mechanism 200. The sensing mechanism 100 includes a first frame 110, a second frame 120 inserted into the first frame 110, an inner winding 130 detachably connected between the first frame 110 and the second frame 120, and an outer winding 140 wound between the first frame 110 and the second frame 120.

[0034] The control mechanism 200 includes a switching circuit board 210 fixed to the front side of the frame 110, an MCU 220 integrated on the front side of the switching circuit board 210, a current detection chip 230, a switching actuator 240, and a power chip 250.

[0035] Furthermore, the frame 110 has an arc opening 300, which is suitable for the outer winding 140 to pass through. The arc opening 300 facilitates the arrangement of the outer winding 140.

[0036] Furthermore, the second frame 120 is composed of a baffle 121 and multiple arc-shaped plates 122. The multiple arc-shaped plates 122 are evenly spaced and arranged in a ring, and are fixed to the inner wall of the second frame 120. The arc-shaped plates 122 are inserted into the inner wall of the first frame 110. While the baffle 121 limits the inner winding 130, it also blocks external debris from damaging the inner winding 130 and the outer winding 140 to a certain extent. Then, the multiple arc-shaped plates 122 work together to shape the outer winding 140, making the outer winding 140 more evenly arranged.

[0037] Furthermore, the outer winding 140 is located outside the inner winding 130, and the number of turns of the outer winding 140 is less than the number of turns of the inner winding 130. With this structural design, the inductance of the outer winding 140 is small, and its saturation threshold is much higher than that of the inner winding 130, thus providing conditions for the switching circuit.

[0038] Furthermore, the MCU220 and current detection chip230 are respectively located on one side of the power supply chip250 and the switching actuator240. The MCU220 is located on top of the current detection chip230, and the power supply chip250 is located on top of the switching actuator240. This layout makes the various components of the control mechanism 200 reasonably distributed, which helps to reduce interference between components and improve the stability and reliability of the entire control mechanism 200. As the control core, the MCU220 is located on top of the current detection chip230, which facilitates the acquisition of the current data detected by the current detection chip230, thereby making timely and accurate control decisions. The power supply chip250 is located on top of the switching actuator240, which can efficiently provide a stable power supply to the switching actuator240, ensuring that the switching actuator240 can work normally. At the same time, this layout also facilitates the installation, debugging and maintenance of various components, reducing the difficulty of operation and maintenance costs. In addition, the reasonable layout can also optimize space utilization, enabling the control mechanism 200 to achieve efficient functions in a limited space, further improving the overall performance of the layered anti-magnetic interference transformer coil anti-saturation device.

[0039] Example 2:

[0040] Combination Figure 1 and Figure 4 As shown, based on Embodiment 1, the frame 110 is provided with a limiting component 400 on the front side. The limiting component 400 includes a first baffle 410 attached to one side of the switching circuit board 210 and a second baffle 420 attached to the other side of the switching circuit board 210. Both the first baffle 410 and the second baffle 420 are fixed to the front side of the switching circuit board 210. The first baffle 410 and the second baffle 420 can limit certain components in the device to prevent unnecessary displacement during operation, thereby ensuring the stability and reliability of the device.

[0041] Example 3:

[0042] Combination Figure 1 and Figure 4 As shown, in the above embodiment, a dustproof component 500 is provided on the front side of the frame 110. The dustproof component 500 includes two insert rods 510 respectively disposed on the top and bottom of the switching circuit board 210, and a cover 520 slidably connected between the two insert rods 510. The insert rods 510 are fixedly connected to one side wall of the baffle 410. The insert rods 510 are used to fix the cover 520 in a suitable position. The cover 520 can effectively prevent dust from eroding the components of the control mechanism 200 and improve the working stability of the device.

[0043] The working principle and usage process of this utility model are as follows: In the initial state, the first frame 110 and the second frame 120 cooperate to provide a stable support structure for the inner winding 130 and the outer winding 140. The MCU220 is pre-set with intelligent algorithms and current thresholds. When the device is put into actual use, the current detection chip 230 detects the current in the circuit in real time and accurately, providing accurate data support for the decision of the MCU220. When the MCU220 determines that the current trend is about to make the inner winding 130 reach 80% of the saturation flux, it immediately sends a command to the switching actuator 240 to disconnect the output circuit of the inner winding 130. At the same time, the outer winding 140 is connected, thereby avoiding saturation and realizing the switching function of the circuit to meet the needs of different working states. In addition, it ensures that the output signal is still an undistorted waveform under extreme current, ensuring that the protection system can obtain reliable information in the fault state.

[0044] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A layered anti-magnetic interference transformer coil anti-saturation device, characterized in that, include: The sensing mechanism (100) includes a first frame (110), a second frame (120) inserted into the first frame (110), an inner winding (130) detachably connected between the first frame (110) and the second frame (120), and an outer winding (140) wound between the first frame (110) and the second frame (120). The control mechanism (200) includes a switching circuit board (210) fixed to the front side of the frame (110), an MCU (220) integrated on the front side of the switching circuit board (210), a current detection chip (230), a switching actuator (240), and a power chip (250).

2. The layered anti-magnetic interference transformer coil anti-saturation device according to claim 1, characterized in that, The frame (110) has an arc opening (300) which is suitable for the outer winding (140) to pass through.

3. The layered anti-magnetic interference transformer coil anti-saturation device according to claim 1, characterized in that, The second frame (120) is composed of a baffle (121) and multiple arc plates (122). The multiple arc plates (122) are evenly spaced and arranged in a ring to be fixed to the inner wall of the second frame (120). The arc plates (122) are inserted into the inner wall of the first frame (110).

4. The layered anti-magnetic interference transformer coil anti-saturation device according to claim 1, characterized in that, The outer winding (140) is located outside the inner winding (130), and the number of turns of the outer winding (140) is less than the number of turns of the inner winding (130).

5. The layered anti-magnetic interference transformer coil anti-saturation device according to claim 1, characterized in that, The MCU (220) and the current detection chip (230) are respectively located on one side of the power chip (250) and the switching actuator (240). The MCU (220) is located on top of the current detection chip (230), and the power chip (250) is located on top of the switching actuator (240).

6. The layered anti-magnetic interference transformer coil anti-saturation device according to claim 1, characterized in that, The frame 1 (110) is provided with a limiting component (400) on the front side. The limiting component (400) includes a first baffle (410) attached to one side of the switching circuit board (210) and a second baffle (420) attached to the other side of the switching circuit board (210). Both the first baffle (410) and the second baffle (420) are fixedly connected to the front side of the switching circuit board (210).

7. The layered anti-magnetic interference transformer coil anti-saturation device according to claim 6, characterized in that, The front side of the frame (110) is provided with a dustproof component (500). The dustproof component (500) includes two plugs (510) respectively located at the top and bottom of the switching circuit board (210) and a cover (520) slidably connected between the two plugs (510). The plugs (510) are fixedly connected to one side wall of the baffle (410).

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