Fixed bus type current transformer

Abstract

The utility model discloses a fixed bus type current transformer which comprises a mounting plate and a current transformer body, mounting grooves are symmetrically formed in the upper surface of the mounting plate, telescopic rods are fixedly connected to the interiors of the mounting grooves, clamping blocks are fixedly connected to one sides of the telescopic rods, moving rods are fixedly connected to the lower ends of the clamping blocks, and the moving rods are fixedly connected to the lower ends of the moving rods. A pressing block is fixedly connected to one side of the moving rod, a pressing groove is formed in one side of the mounting groove, a first spring is arranged on the outer surface of the moving rod, inserting blocks are symmetrically arranged at the lower end of the current transformer body, and moving grooves are symmetrically formed in the two sides of the current transformer body; the interior of the moving groove is fixedly connected with a sliding rod, and the outer surface of the sliding rod is provided with a second spring. By arranging the mounting groove, the telescopic rod, the clamping block, the moving rod, the first spring, the pressing block, the pressing groove and the inserting block, the current transformer body is convenient to disassemble and assemble, and then the current transformer body is convenient to maintain.

Description

TECHNICAL FIELD

[0001] The utility model relates to current transformer technical field, concretely is a kind of fixed busbar type current transformer. BACKGROUND

[0002] Fixed busbar type current transformer is a kind of electrical element for power system, when current transformer is used, power line is threaded through the threading slot of current transformer, in order to improve the precision of measured circuit, when wiring, the number of turns can be changed by the winding number of measured wire on transformer, and the more the number of turns, the higher the measurement accuracy of current sensor.

[0003] When the conventional fixed busbar type current transformer is used, a plurality of wires are wound and threaded through the threading slot, and since the measured wires lack fixation, wire loosening is likely to occur, which causes the wires inside the threading slot to be tangled, is not conducive to circuit detection and maintenance, and the fixed busbar type current transformer is usually fixed by fixing bolts, which is not convenient to disassemble quickly when maintenance is required. SUMMARY

[0004] The utility model aims at providing a kind of fixed busbar type current transformer, can be conveniently disassembled and assembled to current transformer body by installation groove, telescopic rod, clamping block, moving rod, first spring, pressing block, pressing groove, plug-in block, and then the maintenance of current transformer body is facilitated.

[0005] To achieve the above object, a kind of fixed busbar type current transformer is provided, including mounting plate, current transformer body, the upper surface of the mounting plate is symmetrically provided with installation groove, the inside of the installation groove is fixedly connected with telescopic rod, the side of the telescopic rod is fixedly connected with clamping block, the lower end of the clamping block is fixedly connected with moving rod, the side of the moving rod is fixedly connected with pressing block, the side of the installation groove is provided with pressing groove, the outer surface of the moving rod is provided with first spring, the lower end of the current transformer body is symmetrically provided with plug-in block.

[0006] The two sides of the current transformer body are symmetrically provided with moving slot, the inside of the moving slot is fixedly connected with slide rod, the outer surface of the slide rod is provided with second spring, the outer surface of the slide rod is slidably connected with sliding block, the side of the sliding block is fixedly connected with pressing plate.

[0007] According to the fixed busbar type current transformer, the surface of the mounting plate is provided with mounting hole at four corners.

[0008] According to the fixed busbar type current transformer, the lower end of the moving rod is fixedly connected with limiting block, the lower side of the installation groove is provided with limiting groove, and the limiting block is located in the limiting groove.

[0009] According to the fixed bus type current transformer, the pressing block and the first spring are located in the pressing groove.

[0010] According to the fixed bus type current transformer, one side of the second spring is fixedly connected with the side wall of the moving groove, and the other side of the second spring is fixedly connected with one side of the sliding block.

[0011] Compared with the prior art, the fixed bus type current transformer has the advantages that:

[0012] 1. The fixed bus type current transformer is convenient to disassemble and assemble the current transformer body, and thus is convenient to maintain the current transformer body.

[0013] 2. The fixed bus type current transformer is convenient to clamp the wire body and prevent the wire body from falling off or loosening.

[0014] Additional aspects and advantages of the present application will be further described in the following description, some of which will be apparent to those skilled in the art from the description or will be learned from practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0015] The present application will be further described below in conjunction with the drawings and embodiments.

[0016] Figure 1 It is a perspective view of the fixed bus type current transformer of the present application;

[0017] Figure 2 It is a structural schematic view of the mounting plate of the fixed bus type current transformer of the present application;

[0018] Figure 3 It is a structural schematic view of the current transformer body of the fixed bus type current transformer of the present application;

[0019] Figure 4 It is a partial sectional view of the mounting plate of the fixed bus type current transformer of the present application;

[0020] Figure 5 It is an enlarged schematic view of the structure at A in the present application. Figure 1

[0021] In the figure: 1, mounting plate; 2, mounting hole; 3, mounting groove; 4, telescopic rod; 5, clamping block; 6, moving rod; 7, limiting block; 8, first spring; 9, pressing block; 10, pressing groove; 11, limiting groove; 12, current transformer body; 13, plug-in block; 14, moving groove; 15, sliding rod; 16, second spring; 17, sliding block; 18, pressing plate.​ DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0023] Please refer to Figures 1-5 The utility model embodiment provides a kind of technical scheme: a fixed bus type current transformer, including mounting plate 1, current transformer body 12, the upper surface of mounting plate 1 is symmetrically provided with installation groove 3, the inside fixed connection of installation groove 3 has telescopic link 4, one side of telescopic link 4 is fixedly connected with clamping block 5, the lower end of clamping block 5 is fixedly connected with moving rod 6, one side of moving rod 6 is fixedly connected with pressing block 9, one side of installation groove 3 is provided with pressing groove 10, the outer surface of moving rod 6 is provided with first spring 8, the lower end of current transformer body 12 is symmetrically provided with insertion block 13, by setting installation groove 3, telescopic link 4, clamping block 5, moving rod 6, first spring 8, pressing block 9, pressing groove 10, insertion block 13, it is convenient to dismount and assemble current transformer body 12, to facilitate the maintenance of current transformer body 12 in turn;

[0024] The two sides of current transformer body 12 are symmetrically provided with moving groove 14, the inside fixed connection of moving groove 14 has slide rod 15, the outer surface of slide rod 15 is provided with second spring 16, the outer surface of slide rod 15 is slidably connected with sliding block 17, one side of sliding block 17 is fixedly connected with pressing plate 18, by setting moving groove 14, slide rod 15, second spring 16, sliding block 17, pressing plate 18, it is convenient to clamp wire body, prevent wire body from falling off, loose, current transformer body 12 can be provided with centralized collection module, MODBUS 48 way input / output network interface output, there are various sensor components, current transformer, temperature and humidity probe, resistance thermometer, etc.

[0025] The surface of mounting plate 1 is provided with mounting hole 2 at four corners, to facilitate the fixed installation of mounting plate 1, the lower end of moving rod 6 is fixedly connected with limiting block 7, the lower side of installation groove 3 is provided with limiting groove 11, limiting block 7 is located in limiting groove 11, by setting limiting block 7, limiting groove 11, the movement distance of moving rod 6 is limited, pressing block 9, first spring 8 are located in pressing groove 10, one side of second spring 16 is fixedly connected with the side wall of moving groove 14, the other side of second spring 16 is fixedly connected with one side of sliding block 17.

[0026] Working principle: in use, when the line body is wound on the current transformer body 12, the pressing plate 18 moves to the left, the sliding block 17 is driven by the pressing plate 18 to move on the surface of the slide rod 15, and then the second spring 16 is extruded, after the winding of the line body is completed, the pressing plate 18 is released, the pressing plate 18 is clamped to the line body through the reset of the second spring 16, so as to prevent it from loosening; when the current transformer body 12 needs to be repaired, press the pressing block 9, the pressing block 9 drives the moving rod 6 to move, the clamping block 5 is driven by the moving rod 6 to move, the clamping block 5 extrudes the telescopic rod 4, the clamping block 5 is separated from the plug-in block 13, the plug-in block 13 is released from the limitation, and then the current transformer body 12 is taken down for repair; after the repair is completed, the plug-in block 13 is inserted into the installation slot 3, the plug-in block 13 extrudes the inclined surface of the clamping block 5, the clamping block 5 extrudes the telescopic rod 4, and the moving rod 6 is driven to move at the same time, the moving rod 6 makes the first spring 8 compressed, when the plug-in block 13 moves to the bottom, the first spring 8 and the telescopic rod 4 reset, drive the moving rod 6 and the clamping block 5 to return to the original position, the clamping block 5 is inserted into the groove of the plug-in block 13, and it is limited, and then the fixing and installation of the current transformer body 12 are completed.

[0027] The above embodiment of the utility model is described in detail in combination with the drawings, but the utility model is not limited to the above embodiment, and various changes can be made within the knowledge range possessed by ordinary skilled persons in the technical field without departing from the purpose of the utility model.

Claims

1. A fixed bus current transformer comprising a mounting plate (1), a current transformer body (12), characterized in that, The upper surface of the mounting plate (1) is symmetrically provided with a mounting groove (3), the inside of the mounting groove (3) is fixedly connected with an extension rod (4), one side of the extension rod (4) is fixedly connected with a clamping block (5), the lower end of the clamping block (5) is fixedly connected with a moving rod (6), one side of the moving rod (6) is fixedly connected with a pressing block (9), one side of the mounting groove (3) is provided with a pressing groove (10), the outer surface of the moving rod (6) is provided with a first spring (8), the lower end of the current transformer body (12) is symmetrically provided with a plug-in block (13); Both sides of the current transformer body (12) are symmetrically provided with a moving groove (14), the inside of the moving groove (14) is fixedly connected with a sliding rod (15), the outer surface of the sliding rod (15) is provided with a second spring (16), the outer surface of the sliding rod (15) is slidingly connected with a sliding block (17), one side of the sliding block (17) is fixedly connected with a pressing plate (18).

2. A fixed-bus current transformer as claimed in claim 1, characterised in that: The surface of the mounting plate (1) is provided with a mounting hole (2) at the four corners.

3. A fixed-bus current transformer as recited in claim 1, characterized by: The lower end of the moving rod (6) is fixedly connected with a limiting block (7), the lower side of the mounting groove (3) is provided with a limiting groove (11), and the limiting block (7) is located in the limiting groove (11).

4. A fixed-bus current transformer as recited in claim 1, characterized by: The pressing block (9) and the first spring (8) are located in the pressing groove (10).

5. A fixed-bus current transformer as recited in claim 1, characterized by: One side of the second spring (16) is fixedly connected with the side wall of the moving groove (14), and the other side of the second spring (16) is fixedly connected with one side of the sliding block (17).

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