A common magnetic circuit magnetic field cancellation type current-sharing reactor

Abstract

This utility model relates to the field of reactors, and more particularly to a common magnetic circuit magnetic field cancelling current-sharing reactor. A connecting plate is installed on the upper part of the main body. Multiple edge-sealing plates are respectively arranged on the side of the connecting plate facing the connecting wires on the upper part of the main body. The edge-sealing plates are vertically attached to the outer wall of the main body. A support plate is installed on one side of the edge-sealing plate. A hollow support block is connected to the middle of the support plate. A lower protective cover is installed at the upper limit of the hollow support block, and an upper protective cover is snapped onto the upper part of the lower protective cover. In this utility model, the hollow support block and lower protective cover are provided below the connecting wires for support, thereby effectively resisting the downward pressure generated during transportation or connection with external wires, preventing deformation. The lower protective cover and the upper protective cover are connected to form a cylinder to improve the support effect on the wires. The lower protective cover is height-adjustable by screws to support wires of different postures and heights, effectively ensuring wire stability, avoiding end breakage, and improving the operational stability of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of reactor technology, and in particular to a common magnetic circuit magnetic field cancellation current sharing reactor. Background Technology

[0002] In the application of multiple parallel power equipment, uneven current distribution in branches is often caused by slight differences in device characteristics or drive signals. The traditional current sharing method is to install magnetic circuit reactors in each branch to reduce current imbalance. However, its response speed is limited and the multi-core structure is large in size, which cannot achieve efficient operation.

[0003] To overcome this limitation, a common-magnetic-circuit magnetic field cancelling current-sharing reactor has been proposed in the prior art. Its core is to tightly couple the parallel branch windings requiring current sharing onto the same magnetic core in opposite magnetic field directions (common magnetic circuit). When the current is balanced, the opposing magnetic fields cancel each other out within the core. If the current in one branch momentarily increases, the canceling balance within the core is broken, immediately inducing a resistive voltage in the branch with the increased current and a promoting voltage in the branch with the decreased current, thus quickly forcing the current to return to balance. This magnetic field interaction and cancellation mechanism, relying on tight coupling (such as bi-wire winding), gives it excellent dynamic current sharing capability and effectively suppresses circulating current.

[0004] In practical applications, reactors need to connect their own terminals to multiple external conductors (usually 6) to achieve their basic functions. The conductors of the reactor extend a certain distance out of the reactor and are supported and positioned by their own rigidity, i.e., suspended. During transportation, the conductors may break, especially after being connected to external conductors. The circular terminal (line lug) at one end of the reactor is subjected to greater force, which can easily cause the conductor end to bend or be damaged, affecting the stable use of the reactor. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a common magnetic circuit magnetic field cancellation current sharing reactor.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A common magnetic circuit magnetic field cancelling current sharing reactor includes a main body. A connecting plate is installed on the upper part of the main body. Multiple edge plates are respectively arranged on the side of the connecting plate facing the upper connecting wire of the main body. The edge plates are vertically attached to the outer wall of the main body. A support plate is installed on one side of the edge plate. A hollow support block is connected to the middle of the support plate. A lower protective cover is installed on the upper part of the hollow support block. An upper protective cover is snapped onto the upper part of the lower protective cover.

[0008] The upper part of the lower cover carries the connecting wire, and the upper cover covers the upper part of the connecting wire. The upper cover and the lower cover are connected to form a hollow cylindrical structure to support the connecting wire.

[0009] In addition, a preferred structure is that the hollow support block is hollow in the middle and has a limiting groove in the upper part, and a connecting block is installed in the middle of the limiting groove, and the upper part of the connecting block is connected to the bottom wall of the lower cover.

[0010] In addition, a preferred structure is that the connecting block achieves vertical linear movement through a limiting groove, and a screw hole is provided in the middle of the bottom end of the connecting block, which is screwed to the threaded end of the adjusting screw.

[0011] In addition, a preferred structure is that an adjusting screw is rotatably mounted on the bottom of the hollow support block via a bearing component, and one end of the adjusting screw extends into the interior of the hollow support block and is screwed into the connecting block.

[0012] In addition, a preferred structure is that multiple buckles are installed on the bottom outer side of the upper cover, and the buckles and the lower cover have insertion holes that interlock with each other.

[0013] In addition, a preferred structure is that the exterior of both the upper and lower protective covers has multiple through slots.

[0014] The beneficial effects of this utility model are as follows:

[0015] In this invention, hollow support blocks and lower protective covers are provided below each connecting wire to support the main body of the wire. The supported wire can effectively resist the downward pressure generated during transportation or connection with external wires, thereby avoiding deformation. At the same time, the lower protective cover is connected to the upper protective cover to form a cylindrical structure to improve the support effect on the wire. The lower protective cover can be height adjusted by screws to support wires of different postures and heights, effectively ensuring the stability of the wire, avoiding end breakage, and improving the operational stability of the equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the external structure of a common magnetic circuit magnetic field cancelling current sharing reactor proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the external partial structure of a common magnetic circuit magnetic field cancelling current sharing reactor proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the connecting wire connection structure proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the hollow support block proposed in this utility model;

[0020] Figure 5This is an exploded view of the hollow support block and lower protective cover connection structure proposed in this utility model;

[0021] Figure 6 This is a schematic diagram of the external structure of the hollow support block proposed in this utility model;

[0022] Figure 7 This is a schematic diagram of the structure at point A proposed in this utility model.

[0023] In the diagram: 1 main body, 11 connecting wire, 2 connecting plate, 21 edge plate, 22 support plate, 23 hollow support block, 231 limiting groove, 24 upper cover, 3 adjusting screw, 4 lower cover, 41 connecting block, 5 buckle. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Reference Figure 1-7 A common magnetic circuit magnetic field cancellation current sharing reactor includes a main body 1. A connecting plate 2 is installed on the upper part of the main body 1. Multiple edge plates 21 are respectively arranged on the side of the connecting plate 2 facing the upper connecting wire 11 of the main body 1. The edge plates 21 are vertically attached to the outer wall of the main body 1. A support plate 22 is installed on one side of the edge plate 21. A hollow support block 23 is connected to the middle of the support plate 22. A lower protective cover 4 is installed on the upper limit of the hollow support block 23. An upper protective cover 24 is snapped onto the upper part of the lower protective cover 4.

[0026] The main body 1 is externally configured with multiple connecting wires 11, and both ends of the connecting wires 11 are provided with circular terminals. This is a conventional configuration in the art and will not be explained further.

[0027] The upper part of the lower cover 4 carries the connecting wire 11, and the bottom of the connecting wire 11 is supported and supported by the lower cover 4.

[0028] The upper part of the connecting wire 11 is covered with an upper protective cover 24, which is connected to the lower protective cover 4 to form a hollow cylindrical structure to support the connecting wire 11.

[0029] The hollow support block 23 is hollow in the middle and has a limiting groove 231 on the upper part. A connecting block 41 is installed in the middle of the limiting groove 231, and the upper part of the connecting block 41 is connected to the bottom wall of the lower cover 4.

[0030] The connecting block 41 achieves vertical linear movement through the limiting groove 231. A screw hole is provided at the middle of the bottom end of the connecting block 41. The screw hole is screwed to the threaded end of the adjusting screw 3. The adjusting screw 3 rotates to drive the connecting block 41 to move vertically through the thread.

[0031] The bottom of the hollow support block 23 is rotatably mounted with an adjusting screw 3 via a bearing component. One end of the adjusting screw 3 extends into the hollow support block 23 and is screwed into the connecting block 41.

[0032] Multiple buckles 5 are installed on the bottom outer side of the upper cover 24, and the buckles 5 and the lower cover 4 have insertion holes that interlock with each other.

[0033] The buckle 5 includes two symmetrically arranged semi-cylinders. Each semi-cylinder has a wedge-shaped block on its outer side, and there is a certain deformation gap between each semi-cylinder. When the buckle 5 is plugged into the insertion hole on the outer side of the lower cover 4, the inclined surface of the wedge-shaped block is squeezed by the hole wall, causing the semi-cylinder to tilt inward until the overall diameter of the semi-cylinder shrinks to pass through the insertion hole. After the wedge-shaped block passes through the insertion hole, the rebound force generated by the compression of the semi-cylinder drives the wedge-shaped block to rebound and reset outward, so that the top surface of the wedge-shaped block fits against the bottom wall of the insertion hole, thus achieving self-locking.

[0034] Similarly, see the commonly used plastic buckles in daily life, which will not be explained further.

[0035] Multiple through slots are provided on the exterior of both the upper cover 24 and the lower cover 4 to meet the heat dissipation requirements of the conductor foundation.

[0036] In this embodiment, the hollow support block 23 and the lower protective cover 4 support the bottom of the connecting wire 11 and resist the downward pressure of the self-weight of the connecting wire 11 or the external wire connected to it, thus supporting the entire connecting wire 11 and preventing end deformation caused by suspension. At the same time, the upper protective cover 24 further improves the installation stability of the connecting wire 11.

[0037] In practical applications, the adjustment screw 3 at the bottom of the hollow support block 23 can still be rotated to make the adjustment screw 3 rotate through the thread to drive the connecting block 41 connected to it to move vertically, thereby achieving support for the connecting wire 11 at different heights. If the connecting wire 11 itself has a certain tilt angle, such as upward or downward, the support height can be changed by adjusting the connecting block 41.

[0038] Among them, the main body 1, namely the main body of the common magnetic circuit magnetic field cancellation current sharing reactor, whose internal structure and operating principle are not explained in detail, are all common knowledge in the art and will not be elaborated further.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A common magnetic circuit magnetic field cancellation current-sharing reactor, comprising a main body (1), characterized in that, A connecting plate (2) is installed on the upper part of the main body (1). Multiple edge plates (21) are respectively arranged on the side of the connecting plate (2) facing the upper connecting wire (11) of the main body (1). The edge plates (21) are vertically attached to the outer wall of the main body (1). A support plate (22) is installed on one side of the edge plate (21). A hollow support block (23) is connected to the middle of the support plate (22). A lower cover (4) is installed on the upper limit of the hollow support block (23). An upper cover (24) is snapped onto the upper part of the lower cover (4). The upper part of the lower cover (4) carries the connecting wire (11), and the upper part of the connecting wire (11) is covered by the upper cover (24). The upper cover (24) and the lower cover (4) are connected to form a hollow cylindrical structure to support the connecting wire (11).

2. The common magnetic circuit magnetic field cancelling current-sharing reactor according to claim 1, characterized in that, The hollow support block (23) is hollow in the middle and has a limiting groove (231) on the upper part. A connecting block (41) is installed in the middle of the limiting groove (231), and the upper part of the connecting block (41) is connected to the bottom wall of the lower cover (4).

3. A common magnetic circuit magnetic field cancelling current-sharing reactor according to claim 2, characterized in that, The connecting block (41) achieves vertical linear movement through the limiting groove (231). A screw hole is provided at the middle of the bottom end of the connecting block (41), and the screw hole is screwed to the threaded end of the adjusting screw (3).

4. A common magnetic circuit magnetic field cancelling current-sharing reactor according to claim 2, characterized in that, The bottom of the hollow support block (23) is rotatably mounted with an adjusting screw (3) via a bearing component. One end of the adjusting screw (3) extends into the hollow support block (23) and is screwed into the connecting block (41).

5. A common magnetic circuit magnetic field cancelling current-sharing reactor according to claim 1, characterized in that, Multiple buckles (5) are installed on the bottom outer side of the upper cover (24), and the buckles (5) and the lower cover (4) have insertion holes on the outer side to engage with each other.

6. A common magnetic circuit magnetic field cancelling current-sharing reactor according to claim 1, characterized in that, Multiple through slots are provided on the exterior of both the upper protective cover (24) and the lower protective cover (4).

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