行业组件数据 · 2026

叠片铁芯

Laminated iron core is a magnetic component in ignition transformers that reduces eddy current losses through layered construction.

技术定义与适配语境
典型 叠片铁芯 会按材料、尺寸公差、适配关系和失效风险在 电气设备制造 中评估。

A laminated iron core is a critical electromagnetic component constructed from thin, insulated sheets of silicon steel or other ferromagnetic materials stacked together. In ignition transformers, it serves as the magnetic pathway that concentrates and directs magnetic flux to efficiently induce high-voltage output. The laminated structure minimizes eddy current losses by interrupting electrical paths perpendicular to the magnetic field, while the high permeability material enhances magnetic coupling between primary and secondary windings. This component directly influences transformer efficiency, thermal performance, and voltage transformation ratio.

组件规格

定义
A laminated iron core is a critical electromagnetic component constructed from thin, insulated sheets of silicon steel or other ferromagnetic materials stacked together. In ignition transformers, it serves as the magnetic pathway that concentrates and directs magnetic flux to efficiently induce high-voltage output. The laminated structure minimizes eddy current losses by interrupting electrical paths perpendicular to the magnetic field, while the high permeability material enhances magnetic coupling between primary and secondary windings. This component directly influences transformer efficiency, thermal performance, and voltage transformation ratio.
工作原理
The laminated iron core operates on electromagnetic induction principles. When alternating current flows through the primary winding, it creates a time-varying magnetic field within the core. This magnetic flux is concentrated and guided by the high-permeability laminated structure to the secondary winding, where it induces a high-voltage output. The laminated construction with insulated layers prevents circulating eddy currents that would otherwise cause energy loss and heating, while the silicon steel composition provides optimal magnetic properties with minimal hysteresis loss.
材料
Cold-rolled grain-oriented (CRGO) silicon steel sheets (typically 0.23-0.35mm thickness) with insulation coating (C-5 or C-6 grade)containing 2-3.5% silicon content for reduced hysteresis loss. Alternative materials include amorphous metal alloys for high-frequency applications or nickel-iron alloys for precision transformers.
Core Loss
1.2-2.5 W/kg at 1.5T, 50Hz
Permeability
1500-5000 μ
Stacking Factor
0.95-0.97
Lamination Thickness
0.23mm, 0.27mm, 0.35mm
Insulation Resistance
>100 MΩ
Operating Temperature
-40°C to 150°C
标准
ISO 4046-4DIN EN 60404-8-7IEC 60404-8-7

行业分类与别名

叠片铁芯 的常用贸易名称、技术标识和检索关键词。

上级产品

该组件会出现在以下整机或工业产品中。

FMEA · 风险与缓解

诱因 → 失效模式 → 工程缓解

Insufficient insulation between laminations->Increased eddy current losses leading to overheating and reduced efficiency->Implement quality control for insulation coating thickness and uniformity; use automated optical inspection
Mechanical stress during assembly->Deformation of laminations causing air gaps and reduced magnetic efficiency->Use precision stacking fixtures; implement controlled clamping pressure during core assembly
Material impurities or inconsistent silicon content->Increased hysteresis loss and reduced permeability->Source materials from certified suppliers with material traceability; implement incoming material testing

工业生态与工程逻辑

0
Core saturation at high currents
1
Insulation breakdown between laminations
2
Mechanical damage to thin laminations
3
Corrosion of steel sheets
4
Interlaminar short circuits

合规与检测

tolerance
±0.02mm lamination thickness, ±0.5° angular alignment, <2% variation in stacking factor
test method
Epstein frame test for core loss measurement, impedance testing for magnetic properties, insulation resistance testing between laminations, thermal cycling tests

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采购评估维度

不是客户评论,也不是实时热度。以下维度用于前期 RFQ 准备和供应商评估。

技术文档
4/5
制造能力
4/5
可检验性
5/5
供应商透明度
3/5

这些分值是采购评估维度示例,不代表真实客户评分、具体国家买家反馈或实时询盘。

相关组件

常见问题

Why are iron cores laminated instead of solid?

Lamination reduces eddy current losses by breaking up the electrical conduction paths perpendicular to the magnetic field. Solid cores would experience significant energy loss and overheating due to circulating currents induced by the changing magnetic flux.

What is the purpose of insulation between laminations?

The insulation coating (typically phosphate or oxide layer) electrically isolates individual sheets to prevent eddy currents from flowing between laminations, while allowing efficient magnetic flux transfer through the stack.

How does core material affect ignition transformer performance?

Silicon steel's high permeability concentrates magnetic flux efficiently, while its silicon content reduces hysteresis loss. Thinner laminations and better insulation coatings decrease eddy current losses, improving overall transformer efficiency and thermal performance.

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URN:CNFX:ME:UNIT:LAMINATED_IRON_CORE