行业组件数据 · 2026

金属外壳

EMI filter metal housing for electromagnetic interference shielding and protection

技术定义与适配语境
典型 金属外壳 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 precision-engineered metal enclosure designed specifically for EMI filters, providing electromagnetic interference (EMI) shielding, physical protection, heat dissipation, and structural support for filter components. It serves as both a protective case and an integral part of the filter's electromagnetic performance by creating a Faraday cage effect.

组件规格

定义
A precision-engineered metal enclosure designed specifically for EMI filters, providing electromagnetic interference (EMI) shielding, physical protection, heat dissipation, and structural support for filter components. It serves as both a protective case and an integral part of the filter's electromagnetic performance by creating a Faraday cage effect.
工作原理
Acts as a conductive barrier that reflects and absorbs electromagnetic interference through the skin effect, preventing unwanted electromagnetic emissions from escaping (emission control) and protecting internal components from external interference (immunity). The housing's continuous conductive surface creates a low-impedance path to ground, effectively containing electromagnetic fields within the filter assembly.
材料
Galvanized steel (SGCC)aluminum alloy (6061/6063)stainless steel (304/316)with surface treatments including zinc platingpowder coatingor anodizing for corrosion resistance and enhanced conductivity
IP Rating
IP54/IP65
Material Thickness
1.0-2.0 mm
Surface Resistance
<0.1 Ω/sq
Grounding Connection
M6 threaded insert with star washer
Operating Temperature
-40°C to +85°C
Shielding Effectiveness
≥40 dB @ 30 MHz - 1 GHz
标准
IEC 61000-6-4IEC 61000-6-2MIL-STD-461EN 55032UL 94ISO 12944

行业分类与别名

金属外壳 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

Improper seam design or assembly->EMI leakage through gaps->Implement EMI gaskets, conductive seals, or welded seams; ensure proper overlap design
Insufficient corrosion protection->Reduced conductivity and structural integrity->Apply appropriate surface treatments (zinc plating, powder coating); select corrosion-resistant materials for specific environments
Poor thermal design->Overheating of filter components->Incorporate ventilation slots with EMI mesh, heat sinks, or thermal interface materials; ensure adequate surface area

工业生态与工程逻辑

0
Inadequate shielding due to poor seam design
1
Corrosion in harsh environments
2
Grounding failure leading to EMI leakage
3
Thermal management issues
4
Mechanical deformation affecting seal integrity

合规与检测

tolerance
±0.5 mm for critical dimensions, flatness within 0.2 mm over 100 mm
test method
Shielding effectiveness per MIL-STD-285 or IEEE 299, salt spray testing per ASTM B117, IP rating testing per IEC 60529

制造该组件的工厂

来自 CNFX 组件能力表的相关制造商资料。

制造商列表用于前期研究和供应商能力理解,不代表认证、排名或交易担保。

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 is the primary function of an EMI filter metal housing?

The primary function is to provide electromagnetic shielding by containing EMI emissions from the filter components and protecting them from external interference, while also offering physical protection and heat dissipation.

Which materials are commonly used for EMI filter housings?

Common materials include galvanized steel for cost-effectiveness and good shielding, aluminum for lightweight applications with good thermal conductivity, and stainless steel for corrosive environments.

How does the housing affect EMI filter performance?

Proper housing design ensures continuous conductivity and proper grounding, which are critical for achieving required shielding effectiveness. Poor housing can compromise EMI performance by creating leakage paths.

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数据基础

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初步技术归类
本页用于结构化准备研究、RFQ 和供应商评估,不替代买方自己的供应商资质审查、标准核验和技术批准。

请求制造能力信息: 金属外壳

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URN:CNFX:ME:UNIT:METAL_HOUSING