Combined mutual inductor

Abstract

The utility model discloses a combined mutual inductor, and relates to the technical field of mutual inductors. The transformer comprises a bottom frame and a transformer body fixed on the upper end face of the bottom frame. The left side and the right side of the bottom frame are each provided with a stroke opening, the lower end face, located between the two stroke openings, of the bottom frame is provided with two I-shaped strips which are symmetrical front and back, the two ends of each I-shaped strip are each provided with a U-shaped block, and the upper end face of each U-shaped block is inserted into the corresponding stroke opening in a sliding mode. The U-shaped blocks are driven by the I-shaped strips to slide in the stroke openings, so that the distance between the two sets of I-shaped strips is adjusted, the assembling position can be adjusted conveniently according to the shape of an installation face of external equipment, and meanwhile the underframe and the I-shaped strips can be disassembled and assembled conveniently through stretchable work between the U-shaped blocks and the I-shaped strips.

Description

Technical Field

[0001] This utility model belongs to the field of current transformer technology, and in particular relates to a combined current transformer. Background Technology

[0002] Combined instrument transformers are composite devices in power systems that integrate the functions of current transformers and voltage transformers. In traditional power systems, current and voltage measurements require separate installation of independent instrument transformers, which occupy a large space and are costly. With the development of high-voltage transmission and distribution networks, equipment needs to adapt to more compact installation environments (such as substations and ring main units), and combined instrument transformers have emerged to meet this need.

[0003] However, when installing existing combined current transformers with external equipment, the assembly structure within the transformer lacks spacing adjustment capabilities, preventing arbitrary adjustments based on the installation location of the external equipment. Furthermore, most combined current transformers are bolted together after installation, requiring individual operation on multiple bolts each time they are installed or disassembled, hindering rapid assembly and disassembly. Therefore, we provide a combined current transformer to address these issues. Utility Model Content

[0004] The purpose of this utility model is to provide a combined current transformer, which uses an I-shaped strip to drive a U-shaped block to slide in the stroke opening, thereby adjusting the distance between the two sets of I-shaped strips. This facilitates the adjustment of the assembly position according to the shape of the mounting surface of the external equipment. At the same time, the stretchable working between the U-shaped block and the I-shaped strip facilitates the disassembly and assembly of the base frame and the I-shaped strip.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a combined current transformer, including a base frame and a current transformer body fixed on the upper end face of the base frame; the base frame has stroke openings on both the left and right sides, and two sets of symmetrical I-shaped strips are provided on the lower end face of the base frame between the two stroke openings. U-shaped blocks are provided at both ends of the two sets of I-shaped strips, and the upper end face of each U-shaped block is slidably inserted into the stroke opening.

[0007] The present invention is further configured such that the two ends of the upper part of the I-shaped strip abut against the upper surface of the corresponding U-shaped block, and the two side walls of the U-shaped block are fixed with mounting plates that are flush with the lower surface.

[0008] The present invention is further provided that both ends of the lower surface of the I-shaped strip are provided with mounting holes, and the interior of each mounting hole is provided with a locking plate that is bolted to the I-shaped strip.

[0009] The present invention is further provided that the lower surface of the I-shaped strip located at the mounting port is provided with movable holes, and the two ends of the I-shaped strip are provided with limiting holes that communicate with the interior of the movable holes.

[0010] The present invention is further configured such that a movable rod passing through the inside of the limiting hole is fixed on the lower end face of the U-shaped block, and a circular plate located inside the movable hole is fixed on the end face of the movable rod.

[0011] The present invention is further configured such that a spring sleeved on the moving rod is fixed to the end face of the circular plate, and the other end of the spring abuts against the inner end face of the movable hole.

[0012] The present invention is further configured such that the size and shape of the opening on the side of the mounting plate relative to the mounting opening are consistent with the limiting hole and the movable hole, and the opening on the side wall of the mounting plate is assembled with the limiting hole and the movable hole to form a circular hole.

[0013] This utility model has the following beneficial effects:

[0014] When the installation position needs to be adjusted according to the external connection status of the equipment, the I-shaped strip can be moved at the bottom of the base frame. The I-shaped strip will then drive the U-shaped block to slide in the stroke opening, thereby adjusting the distance between the two sets of I-shaped strips under the base frame, thus changing the installation position.

[0015] 2. Control the U-shaped block to move away from the I-shaped strip, so that the upper end of the U-shaped block moves out of the inside of the stroke port, so that the U-shaped block and the base frame are no longer in an assembled connection. At this time, the base frame can be removed from the position between the two sets of U-shaped blocks, and the disassembly relationship can be directly realized. When assembling the base frame, place the base frame between the two sets of U-shaped blocks, and make the lower end face of the base frame abut against the upper end face of the I-shaped strip, and release the U-shaped block. Then the upper end face of the U-shaped block will be directly inserted into the stroke port, thereby realizing the quick assembly and disassembly of the base frame and the I-shaped strip.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the above advantages at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a structural diagram of the base frame in this utility model.

[0020] Figure 3 This is a structural combination diagram of the I-shaped strip and the U-shaped block in this utility model.

[0021] Figure 4 This is an exploded view of the structure of the I-shaped strip and U-shaped block in this utility model.

[0022] Figure 5 This is a structural diagram of the I-shaped strip in this utility model.

[0023] Figure 6 This is a structural diagram of the U-shaped block in this utility model.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1-Base frame, 101-Stroke port, 2-Inductor body, 3-I-shaped bar, 301-Locking plate, 302-Mounting port, 303-Mounting plate, 304-Moving hole, 305-Limiting hole, 4-U-shaped block, 401-Moving rod, 402-Circular plate, 403-Spring. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1

[0028] Please see Figures 1 to 6 This utility model is a combined current transformer. The U-shaped block 4 is driven by the I-shaped strip 3 to slide in the stroke port 101, thereby adjusting the distance between the two sets of I-shaped strips 3. This makes it easy to adjust the assembly position according to the shape of the mounting surface of the external equipment. At the same time, the stretchable work between the U-shaped block 4 and the I-shaped strip 3 makes it easy to disassemble and assemble the base frame 1 and the I-shaped strip 3.

[0029] Specifically, the base frame 1 and the current transformer body 2 fixed on the upper surface of the base frame 1 are provided. The base frame 1 has a stroke port 101 on both the left and right sides. The lower surface of the base frame 1 between the two stroke ports 101 is provided with two sets of symmetrical I-shaped bars 3. Both ends of the two sets of I-shaped bars 3 are provided with U-shaped blocks 4. The upper surface of each U-shaped block 4 is slidably inserted into the stroke port 101. The two ends of the upper part of the I-shaped bar 3 abut against the upper surface of the corresponding U-shaped block 4. The two side walls of the U-shaped block 4 are fixed with mounting plates 303 that are flush with the lower surface. Both ends of the lower surface of the I-shaped bar 3 are provided with mounting ports 302. The interior of the mounting ports 302 is provided with locking plates 301 that are bolted to the I-shaped bar 3.

[0030] The operation process of this embodiment is as follows: When the base frame 1 needs to be installed on an external device using the above structure, the I-shaped strip 3 can be connected to the external device, and the locking plate 301 on the I-shaped strip 3 can be installed on the external device with bolts. When it is necessary to adjust the installation position according to the external status of the device, the I-shaped strip 3 can be controlled to move at the bottom position of the base frame 1. This causes the I-shaped strip 3 to slide in the travel port 101, thereby adjusting the distance between the two sets of I-shaped strips 3 below the base frame 1, thus changing the installation position. Simultaneously, when it is necessary to separate the I-shaped strip 3 and the base frame 1, the control... The U-shaped block 4 is moved away from the I-shaped strip 3, and then the upper end of the U-shaped block 4 is moved out of the inside of the stroke port 101, so that the U-shaped block 4 and the base frame 1 are no longer in an assembled connection. At this time, the base frame 1 can be removed from the position between the two sets of U-shaped blocks 4, and the disassembly relationship can be directly realized. When assembling the base frame 1, the base frame 1 is placed between the two sets of U-shaped blocks 4, and the lower end face of the base frame 1 abuts against the upper end face of the I-shaped strip 3. The U-shaped block 4 is then released, so that the upper end face of the U-shaped block 4 will be directly inserted into the stroke port 101, thereby realizing the quick assembly and disassembly of the base frame 1 and the I-shaped strip 3.

[0031] Example 2

[0032] Please see Figure 4 , Figure 5 and Figure 6 Based on Example 1, the assembly of mounting plate 303, I-shaped strip 3 and U-shaped block 4 facilitates the disassembly of the three components.

[0033] Specifically, the lower surface of the I-shaped strip 3 located at the mounting port 302 is provided with movable holes 304. Both ends of the I-shaped strip 3 are provided with limiting holes 305 that communicate with the interior of the movable holes 304. The lower end of the U-shaped block 4 is fixed with a moving rod 401 that passes through the interior of the limiting hole 305. The end face of the moving rod 401 is fixed with a circular plate 402 located inside the movable hole 304. The end face of the circular plate 402 is fixed with a spring 403 that is sleeved on the moving rod 401, and the other end of the spring 403 abuts against the inner end face of the movable hole 304. The size and shape of the openings on the side of the mounting plate 303 relative to the mounting port 302 are consistent with the limiting holes 305 and movable holes 304. The openings on the side wall of the mounting plate 303 are assembled with the limiting holes 305 and movable holes 304 to form a circular hole.

[0034] The operation process of this embodiment is as follows: When the U-shaped block 4 is moved away from the I-shaped strip 3, the U-shaped block 4 will drive the movable rod and the round block to slide in the movable hole 304. As a result, the round block compresses the spring 403. At the same time, when the U-shaped block 4 is released, the spring 403 will push the round block to quickly return to its original position and control the U-shaped block 4 to quickly return to its original position. At the same time, when the U-shaped block 4 and the I-shaped strip 3 are separated, the mounting plate 303 can be removed from the inside of the mounting opening 302, so that the movable rod and the round block can be exposed. In this way, the U-shaped block 4 and the I-shaped strip 3 can be separated.

[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A combined current transformer, comprising a base frame (1) and a current transformer body (2) fixed to the upper end face of the base frame (1); characterized in that: The base frame (1) has stroke openings (101) on both the left and right sides. The lower end face of the base frame (1) between the two stroke openings (101) is provided with two sets of symmetrical I-shaped strips (3). Both ends of the two sets of I-shaped strips (3) are provided with U-shaped blocks (4). The upper end face of each U-shaped block (4) is slidably inserted into the stroke opening (101).

2. A combined current transformer according to claim 1, characterized in that, The two ends of the I-shaped strip (3) abut against the upper surface of the corresponding U-shaped block (4), and the two side walls of the U-shaped block (4) are fixed with mounting plates (303) that are flush with the lower surface.

3. A combined current transformer according to claim 2, characterized in that, The lower surface of the I-shaped strip (3) is provided with mounting ports (302) at both ends, and the mounting ports (302) are provided with locking plates (301) that are bolted to the I-shaped strip (3).

4. A combined current transformer according to claim 3, characterized in that, The lower surface of the I-shaped strip (3) located at the mounting port (302) is provided with a movable hole (304), and the two ends of the I-shaped strip (3) are provided with a limiting hole (305) that communicates with the inside of the movable hole (304).

5. A combined current transformer according to claim 4, characterized in that, The lower end face of the U-shaped block (4) is fixed with a moving rod (401) that passes through the inside of the limiting hole (305), and the end face of the moving rod (401) is fixed with a circular plate (402) located inside the movable hole (304).

6. A combined current transformer according to claim 5, characterized in that, The end face of the circular plate (402) is fixed with a spring (403) sleeved on the moving rod (401), and the other end of the spring (403) abuts against the inner end face of the movable hole (304).

7. A combined current transformer according to claim 4, characterized in that, The size and shape of the opening on the side of the mounting plate (303) relative to the mounting port (302) are consistent with the limiting hole (305) and the movable hole (304). The opening on the side wall of the mounting plate (303) is assembled with the limiting hole (305) and the movable hole (304) to form a circular hole.

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