CN2582125Y

CN2582125Y - DC filtering reactor

Info

Publication number: CN2582125Y
Application number: CN 02288532
Authority: CN
Inventors: 王仕凯
Original assignee: KAIERDA ELECTRICAL WELDER CO Ltd
Current assignee: KAIERDA ELECTRICAL WELDER CO Ltd
Priority date: 2002-11-18
Filing date: 2002-11-18
Publication date: 2003-10-22
Anticipated expiration: 2012-11-18

Abstract

The utility model relates to a DC filtering reactor which is composed of a coil, an iron core column and an installing bracket. The utility model is characterized in that the coil is directly and vertically wound on the iron core column, and then the iron core column wound with the coil is welded on the installing bracket. The iron core column is formed by pressing and then welding a plurality of iron core column stacking sheets. Compared with the prior art, because of the reasonable structural design of the utility model, a gap between the coil and the iron core column is reduced, the heat radiating area of the coil is increased, therefore the DC filtering reactor has the advantages of volume reduction and manufacturing cost reduction.

Description

The DC filtering reactor

Affiliated technical field

The utility model relates to a kind of reactor, refers in particular to a kind of DC filtering reactor.

Background technology

In background technology, traditional DC filtering reactor is made up of coil, iron core column and mounting bracket, and iron core column adopts the blade inserting assembling, and coil adopts drum type brake coiling moulding, coil and iron core column are assembled, and the DC filtering reactor of this structure as shown in Figure 1.There is following shortcoming in it: (1) coil adopts drum type brake coiling moulding, and the coiling of lead plane causes between coil turn and the interlayer gap is very little, so radiating condition is poor, and the cost height; (2) iron core column adopts bolt compacted iron stem stem lamination to form, and produces vibration noise because electric and magnetic oscillation causes hold-down bolt to become flexible in running, influences reactor useful life; (3) processing because coil, iron core column are finalized the design respectively causes between coil and iron core column to have air gap, so the reactor volume is bigger.

Summary of the invention

The purpose of this utility model is to overcome the above-mentioned defective that exists in the prior art, and a kind of DC filtering reactor is provided, and it is rational in infrastructure, manufacturing and easy to assembly, and volume is less, low cost of manufacture.

For achieving the above object, the solution that the utility model is taked is: a kind of DC filtering reactor, be made up of coil, iron core column and mounting bracket, it is characterized in that directly vertical being wound on the iron core column of coil, the iron core column of the good coil of coiling is welded on the mounting bracket.

Described iron core column is welded to form after being compressed by some iron core column laminations.

The utility model compared with prior art because reasonable in design has reduced the gap between coil and iron core column, and increased the area of dissipation of coil, thereby reduced the volume of reactor, has reduced manufacturing cost.

Description of drawings

Below in conjunction with embodiment and accompanying drawing thereof the utility model is remake description.

Fig. 1 is the structural representation of DC filtering reactor in the prior art.

Fig. 2 is the structural representation of present embodiment.

Fig. 3 is the schematic side view of Fig. 2.

Among the figure: 1, coil, 2, mounting bracket, 3, iron core column.

Embodiment

As shown in Figures 2 and 3, a kind of DC filtering reactor is made up of coil 1, iron core column 3 and mounting bracket 2, it is characterized in that coil 1 direct vertical being wound on the iron core column 3, and the iron core column 3 of the good coil of coiling is welded on the mounting bracket 2.

In the present embodiment, described iron core column 3 is welded to form after being compressed by some iron core column laminations.

When making, at first some iron core column laminations are compressed the back welding with special fixture, again on the special purpose machine tool with coil 1 vertical being wound on the iron core column 3.Reduce the gap of 1 of iron core column 3 and coil like this and increased the area of dissipation of coil 3, thereby reduced the volume of reactor, reduced manufacturing cost.The iron core column 3 of the good coil 1 of coiling is welded on the mounting bracket 2, gap between the iron core column lamination is reduced to bottom line like this, also avoided simultaneously having reached the purpose that reduces vibration noise because of operational shock causes the loosening phenomenon of hold-down bolt (in the prior art).

Because the utility model is rational in infrastructure, makes that the traditional interphase reactor of volume ratio is little, has reduced manufacturing cost and function admirable, and is easy to assembly, adapt to requirement of mass production.

Claims

1, a kind of DC filtering reactor is made up of coil (1), iron core column (3) and mounting bracket (2), it is characterized in that: coil (1) is vertical being wound on the iron core column (3) directly, and the iron core column (3) of the good coil of coiling (1) is welded on the mounting bracket (2).

2, a kind of DC filtering reactor according to claim 1 is characterized in that: described iron core column (3) is welded to form after being compressed by some iron core column laminations.