行业组件数据 · 2026

衔铁

Armature is the movable magnetic core in control output relays that enables switching by electromagnetic force.

技术定义与适配语境
典型 衔铁 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。

The armature in a control output relay is a ferromagnetic component that moves under electromagnetic influence to open or close electrical contacts. It serves as the mechanical actuator that converts electrical signals into physical movement, enabling the relay to switch higher-power circuits. Typically spring-loaded to return to a default position when de-energized, it operates within precise mechanical tolerances to ensure reliable contact engagement and disengagement.

组件规格

定义
The armature in a control output relay is a ferromagnetic component that moves under electromagnetic influence to open or close electrical contacts. It serves as the mechanical actuator that converts electrical signals into physical movement, enabling the relay to switch higher-power circuits. Typically spring-loaded to return to a default position when de-energized, it operates within precise mechanical tolerances to ensure reliable contact engagement and disengagement.
工作原理
When the relay coil is energized, it generates a magnetic field that attracts the armature toward the coil core. This movement either closes normally-open contacts or opens normally-closed contacts, completing or interrupting the controlled circuit. When de-energized, a return spring restores the armature to its original position, reversing the contact state.
材料
Low-carbon electrical steel (typically 1008 or 1010 grade)silicon steel laminationsor soft magnetic compositessometimes nickel-plated for corrosion resistancepivot points may use brass or stainless steel bushings.
Coil Voltage
5-240 V DC/AC
Response Time
3-15 ms
Contact Rating
5-30 A
Magnetic Force
0.5-5 N
Travel Distance
0.5-3 mm
Dielectric Strength
1500-2500 V AC
Operating Frequency
Up to 300 Hz
Insulation Resistance
>100 MΩ
标准
IEC 61810-1UL 508IEC 60255ISO 13849-1

行业分类与别名

衔铁 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

Material degradation from repeated impact->Fractured armature pivot->Use fatigue-resistant alloys and implement preventive replacement schedules
Residual magnetism in core material->Armature fails to release when de-energized->Apply demagnetizing cycles or use low-remanence materials
Misalignment during assembly->Uneven contact pressure and arcing->Implement precision jigging and automated optical inspection

工业生态与工程逻辑

0
Magnetic saturation reducing switching force
1
Mechanical fatigue from high-cycle operation
2
Contact welding due to inrush currents
3
Corrosion in humid environments

合规与检测

tolerance
±0.05 mm dimensional, ±2° angular alignment
test method
High-speed camera motion analysis, magnetic force measurement, contact resistance testing per IEC 61810-7

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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

What causes armature sticking in relays?

Sticking typically results from magnetic remanence, contamination on contact surfaces, mechanical wear, or insufficient return spring force. Regular maintenance and proper material selection prevent this issue.

How does armature design affect relay lifespan?

Optimized armature mass, pivot geometry, and material selection reduce mechanical wear, minimize contact bounce, and improve response consistency, extending operational life beyond 10 million cycles.

Can armatures be replaced independently?

Yes, most industrial relays allow armature replacement, but compatibility with coil specifications and contact assemblies must be verified to maintain performance and safety ratings.

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URN:CNFX:ME:UNIT:ARMATURE