CN201134671Y

CN201134671Y - Low noise dry-type arc-suppressing coil

Info

Publication number: CN201134671Y
Application number: CNU2007203123564U
Authority: CN
Inventors: 刘志强; 赵忠云; 刘利艳; 田贵书; 刘培欣
Original assignee: TIANJIN TIANNENG TRANSFORMER CO Ltd
Current assignee: TIANJIN TIANNENG TRANSFORMER CO Ltd
Priority date: 2007-05-30
Filing date: 2007-12-26
Publication date: 2008-10-15
Anticipated expiration: 2017-12-26

Abstract

The utility model relates to a dry-type arc-suppression coil with little noise, which comprises an iron core with at least an air gap, an air gap backing board, a coil, an upper cushion block, a lower cushion block, a pressure nail and a drawing screw rod. The dry-type arc-suppression coil has the advantages that first, at least one hole is drilled on the air gap backing board, the hole is convenient for the air gap backing board and the iron core to be completely adhered and solidified, second, when an apparatus is equipped with a fastening drawing screw rod, the design of a pressure bar leads air gap (epoxy glass laminated sheet) to evenly force, third, all air gaps in an iron core pillar and all epoxy glass laminated sheets are all effectively solidified together with the iron core, thereby noise in a dry-type arc-suppression coil is excellently limited.

Description

A kind of low-noise dry type arc suppression coil

(1) technical field:

The utility model belongs to the arc suppression coil technical field, especially a kind of low-noise dry type arc suppression coil.

(2) background technology:

The noise of arc suppression coil depends on iron core, all is provided with several air gaps on the iron core column of arc suppression coil.At present, known treating method has two kinds, first kind: the air gap on the iron core column (epoxy resin bonded fiber) does not deal with, directly with drawing screw rod that iron core and air gap (epoxy resin bonded fiber) are compressed; Second kind: iron core iron yoke, stem stem closed assembly respectively, stem stem (containing air gap) is integrated poured, but two air gaps that still have stem stem to contact with upper and lower iron yoke during assembling can't pour into a mould, and the dry type arc suppression coil noise that is used for these two kinds of form iron cores is all bigger.

(3) utility model content:

The purpose of this utility model is to provide a kind of low-noise dry type arc suppression coil, it can overcome in the existing dry type arc suppression coil iron core column air gap can not all pour into a mould the big deficiency of bringing of noise of arc suppression coil, all air gaps in its iron core column, comprise epoxy resin bonded fiber, all be solidified togather effectively, thereby limited the noise in the dry type arc suppression coil well with iron core.

The technical solution of the utility model: a kind of low-noise dry type arc suppression coil, by having iron core, air gap backing plate, coil, last cushion block, lower cushion block, the pressure nail that is no less than an air gap and drawing screw rod to form, wherein iron core is divided into iron core column, iron core cake, upper core yoke and lower core yoke four parts formation, the air gap backing plate places between the iron core column and iron core cake of iron core, coil is placed in outside the iron core, last cushion block is according to pressing nail to be pressed on the coil, coil is pressed on the lower cushion block, draws screw rod to be connected with the lower core yoke with the upper core yoke of iron core respectively; It is characterized in that the integral body that upper core yoke, iron core column, air gap backing plate, iron core cake and the lower core yoke of said iron core are solidified togather according to the adhesive solidification agent.

The beam of pressure is arranged on the upper core yoke of above-mentioned said iron core, press beam insulation and upper clamping piece, the insulation of the beam of pressure is arranged between the support round steel of wherein said pressure beam and upper clamping piece, press beam and upper clamping piece together according to bolted.

The lower core yoke of above-mentioned said iron core has lower clamping piece and base.

Be drilled with on the above-mentioned said air gap backing plate and be no less than one hole.

Above-mentioned said air gap backing plate is an epoxy resin bonded fiber.

Superiority of the present utility model is: 1. be drilled with on the air gap backing plate and be no less than one hole, so that abundant bonding curing between air gap backing plate and the iron core (cake); When 2. pressing the design of beam to make that the assembling of device body is fastening to draw screw rod, make air gap (epoxy resin bonded fiber) stressed evenly; 3. all air gaps in the iron core column comprise epoxy resin bonded fiber, all are solidified togather effectively with iron core, thereby have limited the noise in the dry type arc suppression coil well.

(4) description of drawings:

Fig. 1 is the structural representation of the related a kind of low-noise dry type arc suppression coil of the utility model;

Fig. 2 is the iron core assembling schematic diagram of the related a kind of low-noise dry type arc suppression coil of the utility model;

Fig. 3 is the structural representation of air gap backing plate in the iron core in the related a kind of low-noise dry type arc suppression coil of the utility model;

Fig. 4 is the structural representation that the iron core of the related a kind of low-noise dry type arc suppression coil of the utility model is pressed beam.

Wherein, 1 is the upper core yoke, and 2 for pressing nail, and 3 is last cushion block, and 4 is coil, and 5 is lower cushion block, 6 is the lower core yoke, and 7 is upper clamping piece, and 8 for drawing screw rod, and 9 is the iron core cake, and 10 is the air gap backing plate, and 11 is lower clamping piece, 12 is base, and 13 for pressing beam, and 14 for pressing the beam insulation, and 15 for supporting round steel, and 16 is iron core column.

(5) embodiment:

Embodiment: a kind of low-noise dry type arc suppression coil (see figure 1), by having iron core, air gap backing plate 10, coil 4, last cushion block 3, lower cushion block 5, the pressure nail 2 that is no less than an air gap and drawing screw rod 8 to form, wherein the iron core (see figure 2) is divided into iron core column 16, iron core cake 9, upper core yoke 1 and lower core yoke 6 four parts formation, air gap backing plate 10 places 9 of the iron core column 16 of iron core and iron core cakes, coil 4 is placed in outside the iron core, last cushion block 3 is according to pressing nail 2 to be pressed on the coil 4, coil 4 is pressed on the lower cushion block 5, draws screw rod 8 to be connected with lower core yoke 6 with the upper core yoke 1 of iron core respectively; It is characterized in that the integral body that upper core yoke 1, iron core column 16, air gap backing plate 10, iron core cake 9 and the lower core yoke 6 of said iron core are solidified togather according to the adhesive solidification agent.

The beam of pressure 13 (see figure 4)s, the insulation 14 of pressure beam and upper clamping piece 7 are arranged on the upper core yoke 1 of above-mentioned said iron core, the beam of pressure insulation 14 is arranged between the support round steel 15 of wherein said pressure beam 13 and upper clamping piece 7, press beam 13 and upper clamping piece 7 together according to bolted.

The lower core yoke 6 of above-mentioned said iron core has lower clamping piece 11 and base 12.

Be drilled with on the above-mentioned said air gap backing plate 10 and be no less than one hole.(see figure 3)

Above-mentioned said air gap backing plate 10 is an epoxy resin bonded fiber.(see figure 3)

Claims

1, a kind of low-noise dry type arc suppression coil, by having iron core, air gap backing plate, coil, last cushion block, lower cushion block, the pressure nail that is no less than an air gap and drawing screw rod to form, wherein iron core is divided into iron core column, iron core cake, upper core yoke and lower core yoke four parts formation, the air gap backing plate places between the iron core column and iron core cake of iron core, coil is placed in outside the iron core, last cushion block is according to pressing nail to be pressed on the coil, and coil is pressed on the lower cushion block, draws screw rod to be connected with the lower core yoke with the upper core yoke of iron core respectively; It is characterized in that the integral body that upper core yoke, iron core column, air gap backing plate, iron core cake and the lower core yoke of said iron core are solidified togather according to the adhesive solidification agent.

2, according to said a kind of low-noise dry type arc suppression coil in the claim 1, it is characterized in that the beam of pressure is arranged on the upper core yoke of said iron core, press beam insulation and upper clamping piece, the insulation of the beam of pressure is arranged between the support round steel of wherein said pressure beam and upper clamping piece, press beam and upper clamping piece together according to bolted.

3,, it is characterized in that the lower core yoke of said iron core has lower clamping piece and base according to said a kind of low-noise dry type arc suppression coil in the claim 1.

4,, it is characterized in that being drilled with on the said air gap backing plate and be no less than one hole according to said a kind of low-noise dry type arc suppression coil in the claim 1.

5,, it is characterized in that said air gap backing plate is an epoxy resin bonded fiber according to said a kind of low-noise dry type arc suppression coil in claim 1 or 4.