行业组件数据 · 2026

磁路

Magnetic circuit is the path for magnetic flux in torque motors, optimizing electromagnetic force for precise motion control.

技术定义与适配语境
典型 磁路 会按材料、尺寸公差、适配关系和失效风险在 机械和设备制造 中评估。

A magnetic circuit is a closed path formed by magnetic materials that guides and concentrates magnetic flux generated by electrical currents in coils. In torque motors and coil assemblies, it consists of permanent magnets, ferromagnetic cores, and air gaps, designed to maximize magnetic flux density and minimize reluctance for efficient energy conversion from electrical to mechanical torque.

组件规格

定义
A magnetic circuit is a closed path formed by magnetic materials that guides and concentrates magnetic flux generated by electrical currents in coils. In torque motors and coil assemblies, it consists of permanent magnets, ferromagnetic cores, and air gaps, designed to maximize magnetic flux density and minimize reluctance for efficient energy conversion from electrical to mechanical torque.
工作原理
Operates based on Ampere's law and magnetic flux continuity, where electrical current in coils creates a magnetic field that interacts with permanent magnets or other magnetic materials. The circuit's geometry and material properties determine flux distribution, generating torque through Lorentz forces or magnetic attraction/repulsion, with efficiency dependent on minimizing magnetic leakage and hysteresis losses.
材料
High-permeability silicon steel laminations (e.g.M19M36 grades)neodymium-iron-boron (NdFeB) or samarium-cobalt (SmCo) permanent magnetssoft magnetic composites (SMCs)and sometimes ferritesinsulation coatings to reduce eddy currents.
Coercivity
> 800 kA/m for permanent magnets
Reluctance
< 0.5 H^-1
Flux Density
1.2-1.8 T
Air Gap Tolerance
±0.05 mm
Operating Temperature
-40°C to 150°C
标准
ISO 21782DIN EN 60317

行业分类与别名

磁路 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

Poor material quality or incorrect lamination->Increased core losses and overheating->Use certified materials per ISO standards and implement quality checks during manufacturing.
Inadequate air gap control during assembly->Flux leakage and reduced torque output->Apply precision machining and automated alignment systems with tolerance monitoring.

工业生态与工程逻辑

0
Magnetic saturation leading to reduced torque
1
Demagnetization under high temperatures or excessive currents
2
Air gap variations causing flux leakage and inefficiency

合规与检测

tolerance
±0.1 mm for dimensional accuracy, ±2% for magnetic properties
test method
Flux density measurement using gaussmeters, thermal cycling tests per IEC 60068, and hysteresis loop analysis

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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 a magnetic circuit in a torque motor?

To efficiently channel and concentrate magnetic flux, converting electrical energy into mechanical torque with minimal losses, enabling precise and responsive motion control in applications like robotics and CNC machines.

How does material selection impact magnetic circuit performance?

Materials with high permeability and low coercivity reduce energy losses and hysteresis, while proper lamination or composite use minimizes eddy currents, enhancing efficiency and thermal stability in dynamic operations.

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CNFX Industrial Component Index · 机械和设备制造

数据基础

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初步技术归类
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URN:CNFX:ME:UNIT:MAGNETIC_CIRCUIT