CN203205211U - Core post structure for iron core reactor - Google Patents

Abstract

The utility model relates to a core post structure for an iron core reactor. The core post structure comprises an iron core post and a core passing screw rod, wherein the iron core post consists of a plurality of core posts and air gaps, the core posts are sequentially ranged along the axial line, the air gaps are formed between every two adjacent core posts, pulling plates are arranged at the two sides of the iron core post, the core passing screw rod passes through the core post and is fixed on the core posts through a fastening element, and the fastening element is a locking screw nut. The core post structure for the iron core reactor has the advantages that the core passing screw rod is added in each section of core post of the iron core post, so the vibration of each core post is limited, the noise of the iron core reactor can be obviously reduced, the safety problem caused by core post vibration is avoided, and in addition, the contact between the core posts and the pulling plates is firmer.

Description

Core column structure for iron core reactor

technical field

The utility model relates to a core column structure, in particular to a core column structure for an iron core reactor.

Background technique

At present, reactors are widely used as reactive power compensation equipment in power systems. Reactors are roughly divided into three types according to the form of the iron core: one is the air-core reactor, which has only windings but no iron core, which is essentially a Hollow inductance coil; the other is iron core reactor, its magnetic circuit is a closed iron core column, and the iron core column is covered with windings; the other is iron core reactor with air gap, its structure is shown in Figure 1 , the magnetic circuit is an iron core column with an air gap, and a winding is sheathed outside the iron core column.

Among them, the iron-core reactor with air gap has a high-permeability core, so the inductance value is large and the volume is small, and the air gap set in the core column makes the inductance value of the reactor basically not change with the current passing through the reactor. Therefore, the inductance value of the iron core reactor with air gap is large and stable, and the inductance value of the iron core reactor with air gap can be changed by adjusting the height of the air gap between the core columns, so the iron core reactor with air gap The application range of the reactor is wide, but because of the air gap in the iron core column of this iron core reactor, a large electromagnetic force will be generated between each section of the core column and the spacer plate of the air gap, so that the iron core column will generate greater vibration And noise, it is also easy to produce local heating, which brings unsafe hidden dangers to the operation of the core reactor.

Utility model content

The purpose of the utility model is to provide a core column structure for an iron core reactor which can avoid the vibration and noise of the core column in order to overcome the deficiencies of the prior art. the

In order to achieve the above purpose, the technical solution adopted by the utility model is: a core column structure for an iron core reactor, including an iron core column and a through-core screw, the core column is composed of several core columns arranged in sequence along its axis and each adjacent An air gap is set between the two core columns, and the two sides of the iron core column are provided with pull plates; the through-core screw passes through the core column and is fixed on the core column by fasteners.

Preferably, the fastener is a lock nut.

Due to the application of the above-mentioned technical solution, the utility model has the following advantages compared with the prior art:

A core column structure for an iron-core reactor according to the proposal of the utility model, by adding a through-core screw in each section of the core column, the vibration of each core column is limited, the noise of the core reactor can be significantly reduced, and the noise caused by the core is avoided. The safety problems caused by column vibration, and make the contact between the core column and the pull plate more firm.

Description of drawings

Below in conjunction with accompanying drawing, technical scheme of the utility model is further described:

Accompanying drawing 1 is the structural representation of the core column structure of the prior art iron core reactor;

Accompanying drawing 2 is the structural representation of the core column structure of iron core reactor of the present utility model;

Among them: 1. Iron core column; 2. Core column; 3. Air gap; 4. Pull plate; 5. Through-core screw; 6. Lock nut. the

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail.

As shown in the accompanying drawing 2, a core column structure for an iron core reactor according to the utility model includes an iron core column 1 and a through-core screw 5, and the iron core column 1 is composed of several core columns 2 and The air gap 3 provided between each adjacent two core columns is formed, and the two sides of the iron core column 1 are provided with pull plates 4; the through-hole screw 5 passes through the core column 2, and is fixed on the core column 2 by fasteners ; The fastener is a lock nut 6 .

A core column structure for an iron core reactor according to the utility model scheme, by adding a through-core screw 5 in each section of the core column 2 of the iron core column 1, when the iron core reactor is in use, the through-center screw 5 limits the length of each core column 2 Therefore, the noise of the core reactor can be significantly reduced, the safety problem caused by the vibration of the stem 2 can be avoided, and the contact between the stem 2 and the pull plate 4 can be made firmer.

The above are only specific application examples of the utility model, and do not constitute any limitation to the protection scope of the utility model. All technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the utility model.

Claims (2)

1. iron-core reactor rod structure diligently, comprise core limb, described core limb is made of the air gap that arranges between several stems that are arranged in order along its axis and every adjacent two stems, and described core limb both sides are provided with arm-tie, it is characterized in that: also comprise core through screw rod; Described core through screw rod passes stem, and is fixed on the stem by securing member.

2. iron-core reactor according to claim 1 rod structure diligently, it is characterized in that: described securing member is locking nut.

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