CN2884462Y

CN2884462Y - Iron yoke insulator for transformer

Info

Publication number: CN2884462Y
Application number: CN 200520139630
Authority: CN
Inventors: 范建伟
Original assignee: China Electric Equipment Group Co Ltd
Current assignee: China Electric Equipment Group Co Ltd
Priority date: 2005-12-13
Filing date: 2005-12-13
Publication date: 2007-03-28
Anticipated expiration: 2015-12-13

Abstract

The utility model relates to an insulation of iron yoke used for transformer. The insulation of iron yoke has functions of pressing and fixing coil and iron core as well as fixing partition plate at the same time. Furthermore, insulation between end of coil and the iron core is strengthened and vibration and noise are reduced by the insulation of the iron yoke. The insulation of the iron yoke is an entirety that the first insulating plate and silica gel underlay, the secondary insulating plate and silica gel underlay are bound together with glue. The utility model has advantage that the coil is fixed in axial direction and the partition plate is directly set up on it, which not only simplifies operation of worker but also makes the fastness in axial direction between the coil and the iron core more reliable, furthermore the stress between the coil and the iron core becomes more average and performance of insulation is also promoted. The operation of drilling on the clamping piece is eliminated and efficiency of assembly is promoted. The silica gel underlay not only functions as insulation, but also reduces vibration and noise.

Description

The transformer core insulation

Technical field

The utility model relates to a kind of transformer core insulation, this core insulation can play the effect that press-fits fixed coil and iron core and immobile phase space bar simultaneously, strengthens end winding and insulation unshakable in one's determination, reduces vibrations and noise.Belong to the transformer technology field.

Background technology

At present general dry-type transformer does not have this structure. originally the iron core of transformer and coil axes between fixing main the employing on the folder of clamping iron core punch, then by pressing nail pressure die briquetting that coil is fixed, thereby guarantee the tram between coil and the iron core, between iron yoke and coil, there be not such fixing, phase partition between the coil fixedly is to adopt fixation clamp to be fixed, fixation clamp is fixed on high pressure folder and low pressure folder both sides earlier, and then between phase partition is fixed on.

Summary of the invention

The purpose of this utility model is to propose a kind of transformer core insulation, and this core insulation can play the effect that press-fits fixed coil and iron core and immobile phase space bar simultaneously, strengthens end winding and insulation unshakable in one's determination, reduces vibrations and noise.Technical solution of the present utility model: its structure be core insulation by between first insulation board, first silicagel pad, second silicagel pad, second collets, first collets with glue firm be bonded into an integral body.

Advantage of the present utility model: to having played fixation, phase partition can be directly installed on it, has not only simplified workman's operating procedure to coil axes, and make coil and stalk between fixing more firm.Make between coil and the iron core stressed more evenly and improved insulation property, phase partition is directly fixed thereon, reduced the operation of on folder, changeing the hole, thereby improved the efficient of assembling, top silicagel pad has also played damping when playing insulating effect, reduce the effect of noise

Description of drawings

Accompanying drawing 1 is the upward view of core insulation

Accompanying drawing 2 is front views of core insulation

Accompanying drawing 3 is vertical views of core insulation

Structural representation when accompanying drawing 4 is the core insulation user mode.

Accompanying drawing 5 is the A-A cutaway views among Fig. 4

Among the figure 1 is that first insulation board, 2 is that first silicagel pad, 3 is that second silicagel pad, 4 is that second collets, 5 are first collets, the 6th, iron core, the 7th, mold pressing piece, the 8th, core insulation, the 9th, phase partition, the 10th, folder, the 11st, coil.

Embodiment

Contrast accompanying drawing

1,2,3, its structure is that

first insulation board

1 and 2 of first silicagel pad stick with glue and connect, the another side of

first silicagel pad

2 and 3 of second silicagel pad stick with glue and connect, the another side of second silicagel pad 3 and 4 of second collets stick with glue and connect, between the another side of second collets 4 and first collets 5 with glue firm be bonded into integral body.

Contrast accompanying drawing 4,5, core insulation 8 and coil 11 and unshakable in one's determination 6 are assembled up, make second silicagel pad 3 contact with the iron yoke of iron core, first silicagel pad 2 contacts with overhang, following core insulation 8 should be put earlier and overlap coil 11 again, above put coil 11 after put again, and then the silicon steel sheet of the dowel heart 6 upper yokes, then iron core 6 and coil axes are fixed on the hole of core insulation 8 thereby at last phase partition 9 usefulness are restricted to just having fixed. and make coil 11, iron core 6, core insulation 8, phase partition 9 constitute integral body.

Claims

1, transformer core insulation, it is characterized in that sticking with glue between first insulation board (1) and first silicagel pad (2) and connect, stick with glue between the another side of first silicagel pad (2) and second silicagel pad (3) and connect, stick with glue between the another side of second silicagel pad (3) and second collets (4) and connect, between the another side of second collets (4) and first collets (5) with glue firm be bonded into integral body.