CN203503428U

CN203503428U - Epoxy pouring dry type iron core electric reactor of rectangular iron core

Info

Publication number: CN203503428U
Application number: CN201320159597.5U
Authority: CN
Inventors: 许昌强; 李小江; 郭军
Original assignee: SUQIAN KINGWIN POWER ELECTRONICS TECHNOLOGY Co Ltd
Current assignee: Jiangsu Ding Ying power equipment Co., Ltd
Priority date: 2013-04-02
Filing date: 2013-04-02
Publication date: 2014-03-26
Anticipated expiration: 2023-04-02

Abstract

The utility model discloses an epoxy pouring dry type iron core electric reactor of a rectangular iron core, which is used for capacitance reactive compensation. In a filtering system, an iron core column and an iron yoke are in rectangular structures and are convenient to stack; the horizontal degree of the iron core column is high, and the three-phase equilibrium degree of an inductance value is good; a silica gel cushion is additionally arranged to absorb the vibration; the operation noises of the electric reactor are small and the like. The epoxy pouring dry type iron core electric reactor comprises a coil, an iron core, an upper clamping piece, a lower clamping piece, an upper pressing plate, a lower pressing plate, a non-magnetism-conduction bolt pull rod, an upper pressing nail, a lower pressing nail, an iron core clamping plate and the silica gel cushion.

Description

A kind of epoxy cast dry iron core reactor of rectangle iron core

[technical field]

The utility model belongs to reactor technical field, particularly the epoxy cast dry iron core reactor of rectangle iron core.

[background technology]

In the prior art, the reactive power compensation of electric power system, the reactor in filter mostly is oily formula or dry-type air-core reactor conventionally.Oil formula reactor volume is large, and with the easy contaminated environment of insulating oil, inflammable and explosive, easy-maintaining not; And the anti-body of dry-type air-core is long-pending also large, coil has electromagnetic pollution around, affects other former device.These two kinds of reactors are all not suitable for being contained in cabinet.

In addition, epoxy cast dry iron core reactor iron core column mostly on the market is circular iron core, first process iron core cake, makes iron core cake be solidified into integral body.Iron core cake is stacked one by one again, and iron core cake all first processes, then iron core cake closed assembly is become to whole, because each iron core cake needs level, just can make whole iron core column level, complex structure.This reactor has following shortcoming:

1., if a discus injustice can cause whole iron core column out-of-level, thereby has influence on the adjusting of inductance value, have influence on three-phase equilibrium degree.

2. the horizontal plane of iron core column is uneven, is difficult for clamping, and there will be vibration and noise in the running of reactor.

3. in the gap of iron core pull bar between phase and phase, pass, connect Double layer iron yoke become an integral body by pull bar, because pull bar is alternate, can increase the distance of phase and phase, iron yoke can lengthen, and cost increases.

4. due to many silicon steel sheets, the loss meeting of silicon steel sheet increases, thereby causes iron core temperature rise to increase.

5. because pull bar is equipotential with ground, in beating withstand voltage process, due to pull bar and coil surface too near, easy creepage puncturing.

[summary of the invention]

For the above-mentioned problems in the prior art, the utility model provides a kind of epoxy cast dry iron core reactor of rectangle iron core, use rectangle iron core, and connect Double layer iron yoke by pull bar, make the temperature rise of more convenient, to reduce reactor noise being installed, reducing core of reactor, and reinforced insulation is withstand voltage.

An epoxy cast dry iron core reactor for rectangle iron core, comprising:

Coil;

Iron core column, it consists of a plurality of iron core overlappings, and wherein iron core is rectangle iron core cake;

Iron core pull bar, it is rectangle, and portion is passed in coil;

Double layer iron yoke, it connects by iron core pull bar;

Iron core clamping plate, it is positioned at the both sides of iron core column and iron yoke, for secured core.

A kind of preferred version is: described pull bar is without magnetic conduction bolt draw bar.

Further preferred version is: between iron core and iron core, pass through epoxide-resin glue hydropexis, and pass through without the colligation of latitude band.

Further preferred version is again: on the lower surface of iron yoke, silicagel pad is housed.

[accompanying drawing explanation]

Fig. 1 is the overall structure figure of epoxide resin dry-type iron-core reactor of the present utility model;

Fig. 2 is the A-A cutaway view of epoxide resin dry-type iron-core reactor of the present utility model;

Fig. 3 is the top view of epoxide resin dry-type iron-core reactor of the present utility model;

Fig. 4 is the loop construction enlarged drawing of epoxide resin dry-type iron-core reactor of the present utility model;

Fig. 5 is the pull bar enlarged drawing of epoxide resin dry-type iron-core reactor of the present utility model;

Fig. 6 is reactor winding fabrication processing figure of the present utility model;

Fig. 7 is the fabrication processing figure of core of reactor assembling of the present utility model;

The final assembly process figure of Fig. 8 reactor of the present utility model.

[embodiment]

Below in conjunction with accompanying drawing of the present utility model and concrete execution mode, the technical solution of the utility model is clearly and completely described.

As Figure 1-5, the structure of epoxide resin dry-type iron-core reactor of the present utility model comprises;

Coil;

Iron core column, it consists of a plurality of lamination closed assemblies, and wherein said lamination is silicon steel sheet;

Iron core pull bar, it is rectangle, and portion is passed in coil;

Double layer iron yoke, it connects by iron core pull bar;

Wherein, described pull bar is without magnetic conduction bolt draw bar, passes through epoxide-resin glue hydropexis between iron core and iron core, and by without the colligation of latitude band, make core structure consolidation, and on the lower surface of iron yoke, silicagel pad is housed, in running, there is the effect of damping, thereby reduced the noise of reactor.And pull bar passes in the inside of coil, pull open with phase insulation distance, phase and phase is withstand voltage easily to be passed through.

As Fig. 6-8 are depicted as the making flow chart of reactor winding of the present utility model and iron core and the general assembly flow chart of reactor:

The manufacturing process of reactance coil:

Coil winding → wire bonds → coil dress mould → coil preliminary drying → coil cast → coil baking → coil the demoulding → coil surface is processed

The manufacturing process of core of reactor assembling:

Silicon steel sheet snip → silicon steel sheet lamination → silicon steel sheet brush coating → placement epoxy plate air gap → without the colligation of latitude band

The general assembly flow process of reactor:

Iron core is locked → placed to the online stem stem → brush coating of mounting coil water regulation iron core → put upper yoke → placement folder to be filled out without magnetic conduction draw lever locking → energising test inductance value → adjusting inductance → reactor finished product test.

Reactor of the present utility model has following beneficial effect:

1. reactor is owing to being rectangle iron core, thus thickness can suitably increase the iron degree of iron yoke can corresponding reducing, cabinet length can reduce the reactor in being loaded on cabinet, easy for installation.

2. owing to having added silicagel pad, silica gel is lined with certain elasticity, can not cause cabinet and reactor to shake altogether in reactor running, can reduce the noise of reactor simultaneously.

3. because rectangular iron core iron yoke is short, iron core is owing to having reduced silicon steel sheet, and the loss meeting of silicon steel sheet reduces, thereby reduces the temperature rise of core of reactor.

4. iron core pull bar adopts not magnetic stainless steel Luo bar, in the middle of coil, passes.Increased alternate insulation distance over the ground, reinforced insulation is withstand voltage.Make operation more safely in reactor product high-pressure system.

The above; it is only embodiment of the present utility model; but protection range of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; can expect easily changing or replacing, within all should being encompassed in protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion by the described protection range with claim.

Claims

1. an epoxy cast dry iron core reactor for rectangle iron core, comprising:

Coil;

Iron core pull bar, it is rectangle, and portion is passed in coil;

Double layer iron yoke, it connects by iron core pull bar;

2. epoxy cast dry iron core reactor as claimed in claim 1, is characterized in that:

Described pull bar is without magnetic conduction bolt draw bar.

3. epoxy cast dry iron core reactor as claimed in claim 1 or 2, is characterized in that:

Between iron core and iron core, pass through epoxide-resin glue hydropexis, and pass through without the colligation of latitude band.

4. epoxy cast dry iron core reactor as claimed in claim 3, is characterized in that:

On the lower surface of iron yoke, silicagel pad is housed.