CN219066597U

CN219066597U - Limb plate insulation structure

Info

Publication number: CN219066597U
Application number: CN202220429423.5U
Authority: CN
Inventors: 田小静; 刘荣; 刘洁; 郭翠钰; 汪琛
Original assignee: Baoding Tianwei Baobian Electric Co Ltd
Current assignee: Baoding Tianwei Baobian Electric Co Ltd
Priority date: 2022-02-28
Filing date: 2022-02-28
Publication date: 2023-05-23
Anticipated expiration: 2032-02-28

Abstract

The utility model belongs to the technical field of transformers, in particular to a limb plate insulation structure, which comprises a limb plate body, reinforced iron and an insulation component; the reinforcing iron is fixedly connected to the top of the limb plate body; the insulation component is arranged on the outer wall of one side of the limb plate body; the insulation assembly comprises an insulation sleeve, a limb plate insulator, a first insulation plate, an insulation bolt and a second insulation plate; the insulating sleeve is arranged on the outer wall of the reinforced iron; the limb plate is arranged on the outer wall of one side of the limb plate body in an insulating way; four round holes are formed in the limb plate insulator; the first insulation plate is arranged at the insulation top of the limb plate; two through holes are formed in the first insulating plate; the insulating bolt is in threaded connection and matched with the limb plate body through the through hole and the round hole; the second insulating plate is arranged on the outer wall of one side of the limb plate body and is positioned on the outer side of the limb plate insulation; through setting up insulation component for reduce the production of electrode between limb board body and strengthening iron and the lead wire, avoid producing the phenomenon of discharging, thereby play better insulating effect.

Description

Limb plate insulation structure

Technical Field

The utility model belongs to the technical field of transformers, and particularly relates to a limb plate insulation structure.

Background

Transformers have a significant role in power systems, and as the transmission voltage increases, the capacity and voltage class of the transformers also increase continuously, and the reliability of the transformers is directly related to whether the power systems can operate safely.

Because the outer wall of the traditional limb board lacks the protection of the insulating material layer, the limb board and the reinforcing iron are directly exposed outside and are relatively close to the lead wire.

When the coil head of the transformer is closer to the limb plate and limb plate iron reinforcement of the iron core clamping piece in the prior art, the distance between the lead wires (high field strength) and the limb plate iron reinforcement of the clamping piece (ground potential) is closer, if the electrode treatment is not good, discharge is easy to generate, and potential safety hazards are generated for normal operation of the transformer.

Disclosure of Invention

In order to overcome the defects in the prior art, when the coil head of the transformer is close to the limb plate of the iron core clamp and the limb plate strong iron, the lead (high field strength) is close to the limb plate of the clamp and the limb plate strong iron (ground potential), if the electrode is not well treated, discharge is easy to generate, and potential safety hazards are generated for normal operation of the transformer.

The technical scheme adopted for solving the technical problems is as follows: the utility model relates to a limb plate insulation structure, which comprises a limb plate body, reinforced iron and an insulation assembly; the reinforcing iron is fixedly connected to the top of the limb plate body; the insulation component is arranged on the outer wall of one side of the limb plate body; the insulation assembly comprises an insulation sleeve, a limb plate insulator, a first insulation plate, an insulation bolt and a second insulation plate; the insulating sleeve is arranged on the outer wall of the reinforced iron; the limb plate is arranged on the outer wall of one side of the limb plate body in an insulating way; four hole-shaped structures are arranged in the limb plate insulator; the first insulation plate is arranged at the insulation top of the limb plate; two penetrating devices are arranged inside the first insulating plate; the insulating bolt is in threaded connection fit with the limb plate body through penetrating arrangement and hole-shaped arrangement; the second insulating plate is arranged on the outer wall of one side of the limb plate body and is positioned on the outer side of the limb plate insulation; through setting up insulation component for reduce the production of electrode between limb board body and strengthening iron and the lead wire, avoid producing the phenomenon of discharging, thereby play better insulating effect.

Preferably, the outer contour shape of the reinforcing iron is triangular; the limb plate insulation outer contour shape is U-shaped; the outer contour shape of the second insulating plate is L-shaped; through setting up the limb board insulation of U type, make it and the laminating of limb board body outer wall, be convenient for improve installation effectiveness.

Preferably, the insulating sleeve and the limb plate are made of insulating paper boards with the thickness of 0.5 mm; the manufacturing materials of the first insulating plate and the second insulating plate are insulating paperboards with the thickness of 3 mm; the thick insulating paperboard is manufactured, and has the characteristics of simple processing, short period and low cost.

Preferably, the top of the first insulating plate is fixedly connected with a fixing frame; the top of the fixing frame is provided with a clamping assembly; the clamping assembly is connected with the side wall of the second insulating plate; through setting up the mount, play the effect of support to chucking subassembly.

Preferably, the clamping assembly comprises a fixed block, a mounting block, an extrusion rod, a spring and a buffer block; the fixed block is fixedly connected to the top of the fixed frame; the inner wall of the fixed block is provided with a mounting hole; one end of the mounting block is fixedly connected to the side wall of the second insulating plate, and the other end of the mounting block is inserted into the mounting hole; sliding grooves are symmetrically formed in the inner walls of the two sides of the mounting hole; the extrusion rod is connected inside the chute in a sliding way; arc grooves are symmetrically formed in the outer walls of the two sides of the mounting block; the end part of the extrusion rod is contacted with the inner wall of the arc-shaped groove; the spring is arranged in the chute; one end of the spring is fixedly connected to the bottom of the extrusion rod, and the other end of the spring is fixedly connected to the side wall of the chute; the buffer block is fixedly connected to the side wall of the mounting hole and is contacted with the end part of the mounting block; through setting up chucking subassembly, be convenient for fix the installation of second insulation board.

Preferably, the end part of the extrusion rod is arc-shaped; the clamping assembly is provided with two groups at the top of the first insulating plate; the fixing effect on the second insulating plate is improved.

The beneficial effects of the utility model are as follows:

1. according to the utility model, the insulating assembly is arranged, the insulating sleeve is sleeved on the outer wall of the reinforced iron, the limb plate is inserted into the outer wall of one side of the limb plate body in an insulating manner, the first insulating plate is placed on the top of the limb plate insulation, and the first insulating plate and the limb plate are insulated and fixed with the limb plate body through the insulating bolts, so that the generation of electrodes between the limb plate body and the reinforced iron as well as between the limb plate body and the lead wires is reduced, the discharge phenomenon is avoided, a good insulating effect is achieved, and the normal operation of the transformer is maintained.

2. According to the utility model, the clamping assembly is arranged, the mounting blocks fixedly connected to the side walls of the second insulating plate are inserted into the mounting holes, when the mounting blocks are just inserted, the outer walls of the two sides of the mounting blocks can contact the end parts of the extrusion rods, so that the extrusion rods slide in the sliding grooves, meanwhile, the springs are extruded, when the mounting blocks completely enter the mounting holes, the end parts of the mounting blocks are contacted with the outer walls of the buffer blocks, and under the restoring action of the springs, the extrusion rods are inserted into the arc-shaped grooves, so that the purpose of clamping and fixing the mounting blocks is realized, the second insulating plate is more firmly fixed, and the mounting efficiency is improved.

Drawings

The utility model is further described below with reference to the accompanying drawings.

Fig. 1 is a front view of a main structure of the first embodiment;

FIG. 2 is a front sectional view of the present embodiment;

FIG. 3 is an enlarged view of the structure A in FIG. 2 according to the present embodiment;

fig. 4 is an insulating perspective view of a limb board according to the first embodiment;

fig. 5 is a top view of a first insulating plate according to the first embodiment.

In the figure: 1. a limb plate body; 2. reinforcing iron; 3. an insulating sleeve; 4. insulating the limb plate; 5. a first insulating plate; 6. an insulating bolt; 7. a second insulating plate; 8. a fixing frame; 91. a fixed block; 911. a mounting hole; 912. a chute; 913. an arc-shaped groove; 92. a mounting block; 93. an extrusion rod; 94. a spring; 95. and a buffer block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

As shown in fig. 1 to 5, the present utility model provides a limb board insulation structure, which comprises a limb board body 1, a reinforced iron 2 and an insulation component; the reinforcing iron 2 is fixedly connected to the top of the limb board body 1; the insulation component is arranged on the outer wall of one side of the limb plate body 1; the insulation assembly comprises an insulation sleeve 3, a limb board insulation 4, a first insulation board 5, an insulation bolt 6 and a second insulation board 7; the insulating sleeve 3 is arranged on the outer wall of the reinforced iron 2; the limb board insulator 4 is arranged on the outer wall of one side of the limb board body 1; four hole-shaped arrangements 41 are arranged in the limb board insulation 4; the first insulation plate 5 is arranged on the top of the limb plate insulation 4; two 51 penetrating through the first insulating plate 5 are arranged inside; the insulating bolt 6 is in threaded connection and matched with the limb plate body 1 through a penetrating arrangement 51 and a hole-shaped arrangement 41; the second insulating plate 7 is arranged on the outer wall of one side of the limb plate body 1 and is positioned outside the limb plate insulator 4; during operation, cup joint insulating cover 3 at the strengthening iron 2 outer wall earlier, peg graft limb board insulating 4 at limb board body 1 one side outer wall again, place first insulating board 5 at limb board insulating 4 top at last, and fix first insulating board 5 and limb board insulating 4 and limb board body 1 through insulating bolt 6, and then make the limb board body 1 and reduce the production of electrode between strengthening iron 2 and the lead wire, avoid producing the discharge phenomenon, thereby play better insulating effect, in addition at the installation insulating bolt 6 in-process, utilize 51 cooperation 41, be convenient for realize the installation fixed to first insulating board 5 and limb board insulating 4, through setting up second insulation board 7, can improve insulating effect.

The outer contour shape of the reinforced iron 2 is triangular; the outer contour shape of the limb plate insulator 4 is U-shaped; the outer contour shape of the second insulating plate 7 is L-shaped; the insulating sleeve 3 and the limb plate insulator 4 are made of insulating paperboards with the thickness of 0.5 mm; the first insulating plate 5 and the second insulating plate 7 are made of insulating paper boards with the thickness of 3 mm; during operation, through setting up the bar 2 of triangle-shaped shape, can improve its stability, through setting up the insulating 4 of limb board of U type, make it and the laminating of limb board body 1 outer wall, be convenient for improve installation effectiveness, and insulating cover 3, limb board are insulating 4, first insulation board 5 and the preparation of second insulation board 7 all adopt thick insulation board, have simple processing, the cycle is short, characteristics with low costs.

The top of the first insulating plate 5 is fixedly connected with a fixing frame 8; the top of the fixing frame 8 is provided with a clamping assembly; the clamping assembly is connected with the side wall of the second insulating plate 7; the clamping assembly comprises a fixed block 91, a mounting block 92, a pressing rod 93, a spring 94 and a buffer block 95; the fixed block 91 is fixedly connected to the top of the fixed frame 8; the inner wall of the fixed block 91 is provided with a mounting hole 911; one end of the mounting block 92 is fixedly connected to the side wall of the second insulating plate 7, and the other end of the mounting block is inserted into the mounting hole 911; sliding grooves 912 are symmetrically formed in the inner walls of the two sides of the mounting hole 911; the extrusion rod 93 is slidably connected inside the chute 912; arc grooves 913 are symmetrically arranged on the outer walls of the two sides of the mounting block 92; the end of the extrusion rod 93 is contacted with the inner wall of the arc-shaped groove 913; the spring 94 is arranged inside the chute 912; one end of the spring 94 is fixedly connected to the bottom of the extrusion rod 93, and the other end of the spring is fixedly connected to the side wall of the chute 912; the buffer block 95 is fixedly connected to the side wall of the mounting hole 911 and is contacted with the end part of the mounting block 92; the end part of the extrusion rod 93 is arc-shaped; the clamping assembly is provided with two groups at the top of the first insulating plate 5; during operation, in the process of installing the second insulating plate 7, through inserting the installation piece 92 fixedly connected on the side wall of the second insulating plate 7 into the installation hole 911, just during the insertion, the outer walls of two sides of the installation piece 92 can contact the end part of the extrusion rod 93, so that the extrusion rod 93 slides in the sliding groove 912, and meanwhile, the spring 94 is extruded, when the installation piece 92 completely enters into the installation hole 911, the end part of the installation piece 92 is contacted with the outer wall of the buffer block 95, under the restoring effect of the spring 94, the extrusion rod 93 is inserted into the arc-shaped groove 913, the purpose of clamping and fixing the installation piece 92 is achieved, and therefore, the second insulating plate 7 is fixed more firmly, and the insulating effect is improved.

Working principle: when the device is used, the insulating sleeve 3 is sleeved on the outer wall of the reinforced iron 2, the limb plate insulator 4 is inserted into the outer wall of one side of the limb plate body 1, the first insulating plate 5 is placed at the top of the limb plate insulator 4, the first insulating plate 5, the limb plate insulator 4 and the limb plate body 1 are fixed through the insulating bolt 6, the electrode generation between the limb plate body 1, the reinforced iron 2 and the lead wire is reduced, the discharge phenomenon is avoided, so that a better insulating effect is achieved, in addition, in the process of installing the insulating bolt 6, the insulating sleeve is matched with 41 by using 51, the installation and the fixation of the first insulating plate 5 and the limb plate insulator 4 are convenient, and the insulating sleeve 3, the limb plate insulator 4, the first insulating plate 5 and the second insulating plate 7 are all made of thick insulating paper boards, the device has the characteristics of simple processing, short period and low cost, in the process of installing the second insulating plate 7, the installation blocks 92 fixedly connected to the side walls of the second insulating plate 7 are inserted into the installation holes 911, when the installation blocks are just inserted, the outer walls of the two sides of the installation blocks 92 can contact the end parts of the extrusion rods 93, so that the extrusion rods 93 slide in the sliding grooves 912, meanwhile, the springs 94 are extruded, when the installation blocks 92 completely enter the installation holes 911, the end parts of the installation blocks 92 are contacted with the outer walls of the buffer blocks 95, under the restoring action of the springs 94, the extrusion rods 93 are inserted into the arc-shaped grooves 913, and the purpose of clamping and fixing the installation blocks 92 is achieved, so that the second insulating plate 7 is fixed more firmly, and the insulating effect is improved.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims

1. The utility model provides a limb board insulation structure which characterized in that: comprises a limb plate body (1), reinforced iron (2) and an insulating component; the reinforcing iron (2) is fixedly connected to the top of the limb plate body (1); the insulation component is arranged on the outer wall of one side of the limb plate body (1);

the insulation assembly comprises an insulation sleeve (3), a limb plate insulation (4), a first insulation plate (5), an insulation bolt (6) and a second insulation plate (7); the insulating sleeve (3) is arranged on the outer wall of the reinforced iron (2); the limb plate insulator (4) is arranged on the outer wall of one side of the limb plate body (1); four hole-shaped arrangements (41) are arranged in the limb board insulation (4); the first insulation plate (5) is arranged at the top of the limb plate insulation (4); two penetrating arrangements (51) are arranged in the first insulating plate (5); the insulating bolt (6) is in threaded connection and matched with the limb plate body (1) through a penetrating arrangement (51) and a hole-shaped arrangement (41); the second insulating plate (7) is arranged on the outer wall of one side of the limb plate body (1) and is positioned on the outer side of the limb plate insulator (4).

2. A limb board insulation structure according to claim 1, wherein: the outer contour shape of the reinforced iron (2) is triangular; the outer contour shape of the limb plate insulator (4) is U-shaped; the outer contour shape of the second insulating plate (7) is L-shaped.

3. A limb board insulation structure according to claim 2, wherein: the insulating sleeve (3) and the limb plate insulator (4) are made of insulating paper boards with the thickness of 0.5 mm; the first insulating plate (5) and the second insulating plate (7) are made of insulating paper boards with the thickness of 3 mm.

4. A limb board insulation structure according to claim 3, wherein: a fixing frame (8) is fixedly connected to the top of the first insulating plate (5); the top of the fixing frame (8) is provided with a clamping assembly; the clamping assembly is connected with the side wall of the second insulating plate (7).

5. The limb board insulation structure according to claim 4, wherein: the clamping assembly comprises a fixed block (91), a mounting block (92), an extrusion rod (93), a spring (94) and a buffer block (95); the fixed block (91) is fixedly connected to the top of the fixed frame (8); the inner wall of the fixed block (91) is provided with a mounting hole (911); one end of the mounting block (92) is fixedly connected to the side wall of the second insulating plate (7), and the other end of the mounting block is inserted into the mounting hole (911); sliding grooves (912) are symmetrically formed in the inner walls of the two sides of the mounting hole (911); the extrusion rod (93) is connected inside the chute (912) in a sliding way; arc grooves (913) are symmetrically arranged on the outer walls of the two sides of the mounting block (92); the end part of the extrusion rod (93) is contacted with the inner wall of the arc-shaped groove (913); the spring (94) is arranged inside the chute (912); one end of the spring (94) is fixedly connected to the bottom of the extrusion rod (93), and the other end of the spring is fixedly connected to the side wall of the chute (912); the buffer block (95) is fixedly connected to the side wall of the mounting hole (911) and is contacted with the end part of the mounting block (92).

6. The limb board insulation structure according to claim 5, wherein: the end part of the extrusion rod (93) is arc-shaped; the clamping assembly is provided with two groups at the top of the first insulating plate (5).