CN203205205U

CN203205205U - Iron core of alternating current reactor used for railway vehicle

Info

Publication number: CN203205205U
Application number: CN 201320211340
Authority: CN
Inventors: 沈茂龙; 葛晓村; 黄建华; 顾健; 沈贤明
Original assignee: SUZHOU INDUSTRIAL PARK LONGSHENG ELECTRICAL EQUIPMENT MANUFACTURING CO LTD
Current assignee: SUZHOU INDUSTRIAL PARK LONGSHENG ELECTRICAL EQUIPMENT MANUFACTURING CO LTD
Priority date: 2013-04-24
Filing date: 2013-04-24
Publication date: 2013-09-18
Anticipated expiration: 2023-04-24

Abstract

The utility model discloses an iron core of an alternating current reactor used for a railway vehicle. Due to the fact that a discus after annealing process is adopted and optimization is conducted on the thickness of the iron core and air gaps, the iron-core column structure of the iron core of the reactor is more compact, the integral structure of the iron core of the reactor is more compact, and reduction of the air gaps enables the magnetic flux spread outside due to the air gap edge effect to be little, electric inductance performance of the reactor is improved, and noise of the reactor is reduced. The iron core of the alternating current reactor used for the railway vehicle is compact in structure and has good comprehensive performance.

Description

A kind of used for rail vehicle AC reactor iron core

Technical field

The utility model relates to a kind of used for rail vehicle AC reactor iron core.

Background technology

The used for rail vehicle AC reactor is mainly used in the rear side of used for rail vehicle rectifying device, constitutes the LC filter with filter capacitor, to reduce the degree of pulsatility of output voltage.Because used for rail vehicle AC reactor field of employment is special, thereby its requirement had characteristics such as compact conformation, good anti-vibration, low noise.Mainly comprise unshakable in one's determination and winding two large divisions on the AC reactor structure, its performance depends primarily on structure unshakable in one's determination.Traditional AC reactor iron core shown in accompanying drawing 1, comprises upper yoke 1 ', lower yoke 2 ' and core limb, and core limb is formed by discus 3 ' and air gap 4 ' staggered stack.Consider the stamping-out processing technology of core limb, usually the thickness of discus is set to about 5cm, determines total air gap thickness according to design parameter then, thereby determines single air gap thickness, usually be set to 4～10mm, air gap material is generally used hard insulations such as epoxy plate.The AC reactor core construction of Xing Chenging is compact inadequately like this, and resistance to shock is relatively poor, and noise is bigger in use.

Summary of the invention

The purpose of this utility model provides a kind of used for rail vehicle AC reactor iron core, and this iron core of electric reactor compact conformation has good comprehensive performances.

For achieving the above object, the technical solution adopted in the utility model is: a kind of used for rail vehicle AC reactor iron core, comprise upper yoke, lower yoke, be arranged on the core limb between described upper yoke and the described lower yoke, described core limb comprises a plurality of discus through annealing in process, a plurality of air gaps of arranging along axial line that are arranged between adjacent two described discuses, described discus is 10～20mm along the thickness of described core limb direction of axis line, and described air gap is 1～2mm along the thickness of described core limb direction of axis line.

Preferably, in a plurality of described air gaps, at least one described air gap is the air gap that elastic insulating material is made.

Because the utilization of technique scheme, the utility model compared with prior art has following advantage: a kind of used for rail vehicle AC reactor iron core of the present utility model, wherein by adopting the discus through annealing in process, and the thickness of unshakable in one's determination and air gap is optimized, make that the core limb structure of iron core of electric reactor is more compact, make that the overall structure of iron core of electric reactor is compacter, and it is less to the magnetic flux of outdiffusion that the reducing of air gap can make by the air gap edge edge effect, improve the inductance performance of reactor, reduced the noise of reactor.This iron core of electric reactor compact conformation has good comprehensive performances.

Description of drawings

Accompanying drawing 1 is the overall structure schematic diagram of iron core of electric reactor in the background technology;

Accompanying drawing 2 is the overall structure schematic diagram of iron core of electric reactor of the present utility model.

Embodiment

Come the technical solution of the utility model is further elaborated below in conjunction with accompanying drawing.

Referring to a kind of used for rail vehicle AC reactor iron core shown in Figure 2, comprise upper yoke 1, lower yoke 2, and be arranged on core limb between upper yoke 1 and the lower yoke 2, this core limb comprises a plurality of discuses 3 and a plurality of air gap 4, these a plurality of discuses 3, a plurality of air gap 4 are arranged along the direction of axis line of core limb, wherein between per two discuses 3 air gap 4 is set all, each discus 3 is 10～20mm along the thickness of core limb direction of axis line, and each air gap 4 is 1～2mm along the thickness of core limb direction of axis line.Because the thickness of discus 3 is less, the machining stress when preventing stamping-out causes the distortion of lattice unshakable in one's determination to influence the electromagnetic performance of discus, and the discus 3 behind the stamping-out need carry out annealing in process, descends because of the performance that processing causes thereby improve discus.The structure that the back core post is set like this is more compact, and the gross thickness of core limb reduces, make that the overall structure of iron core of electric reactor is compacter, simultaneously air gap 4 thickness reduces to make and is reduced by the magnetic flux of air gap 4 edge effects to outdiffusion, reduce the supplementary load loss that the magnetic flux diffusion causes, improve the inductance performance of reactor simultaneously, reduce the noise of reactor.In addition, in a plurality of air gaps 4, the air gap of selecting the elastic insulating material of several uses (as silicon rubber) wherein to be made can further reduce the noise of reactor.

Above-described embodiment only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present utility model and enforcement according to this, can not limit protection range of the present utility model with this.All equivalences of doing according to the utility model spirit essence change or modify, and all should be encompassed within the protection range of the present utility model.

Claims

1. used for rail vehicle AC reactor iron core, comprise upper yoke, lower yoke, be arranged on the core limb between described upper yoke and the described lower yoke, it is characterized in that: described core limb comprises a plurality of discus through annealing in process, a plurality of air gaps of arranging along axial line that are arranged between adjacent two described discuses, described discus is 10～20mm along the thickness of described core limb direction of axis line, and described air gap is 1～2mm along the thickness of described core limb direction of axis line.

2. a kind of used for rail vehicle AC reactor iron core according to claim 1, it is characterized in that: in a plurality of described air gaps, at least one described air gap is the air gap that elastic insulating material is made.