行业组件数据 · 2026

定子

Stationary electromagnetic component in servo/stepper motors that generates rotating magnetic fields to drive rotor motion.

技术定义与适配语境
典型 定子 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。

The stator is the stationary part of an electric motor, specifically in servo and stepper motors, consisting of a laminated steel core with precisely wound copper windings arranged in slots. When energized with controlled electrical currents, it produces a rotating magnetic field that interacts with the rotor's magnetic field to create torque and precise rotational motion. In servo motors, stators enable high-torque, variable-speed operation with feedback control, while in stepper motors, they facilitate precise incremental positioning through sequential phase activation.

组件规格

定义
The stator is the stationary part of an electric motor, specifically in servo and stepper motors, consisting of a laminated steel core with precisely wound copper windings arranged in slots. When energized with controlled electrical currents, it produces a rotating magnetic field that interacts with the rotor's magnetic field to create torque and precise rotational motion. In servo motors, stators enable high-torque, variable-speed operation with feedback control, while in stepper motors, they facilitate precise incremental positioning through sequential phase activation.
工作原理
Operates on electromagnetic induction principles: when alternating or pulsed currents flow through the stator windings, they generate a rotating magnetic field. This field interacts with the rotor's permanent magnets or magnetic reluctance, producing mechanical torque. In servo motors, the stator's field rotation is synchronized with rotor position via feedback, while stepper motors use digital pulse sequences to advance the magnetic field in discrete steps.
材料
Laminated electrical steel (M19-M47 grades) for core reduction of eddy currentscopper magnet wire (typically 18-24 AWG) with Class F (155°C) or higher insulationepoxy or varnish impregnation for thermal and mechanical stabilityinsulating paper or slot liners (Nomex or polyester)and aluminum or steel housing.
Current Rating
1A-50A per phase
Voltage Rating
24V-480V AC/DC
Insulation Class
Class F (155°C) or Class H (180°C)
Slot Fill Factor
70%-85%
Inductance per Phase
1mH-100mH
Resistance per Phase
0.1Ω-10Ω
Winding Configuration
3-phase for servo, 2-phase or 4-phase for stepper
标准
ISO 9001IEC 60034NEMA MG1DIN EN 60034

行业分类与别名

定子 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

Thermal overstress from excessive current or poor cooling->Insulation degradation and winding short circuit->Implement temperature sensors, use high-temperature insulation materials, and ensure adequate ventilation or cooling systems
Voltage transients from drive electronics->Insulation puncture and arc damage->Install surge protection devices, use reinforced insulation, and follow proper grounding practices

工业生态与工程逻辑

0
Insulation breakdown due to overheating or voltage spikes
1
Winding short circuits from mechanical damage or contamination
2
Core saturation leading to efficiency loss
3
Misalignment causing vibration and reduced lifespan

合规与检测

tolerance
Winding resistance ±5%, inductance ±10%, dimensional tolerances per ISO 2768-m
test method
Hi-pot testing (1500V AC for 1 minute), insulation resistance test (>100MΩ at 500V DC), winding resistance measurement, inductance verification via LCR meter, and thermal cycling tests

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 difference between servo motor stators and stepper motor stators?

Servo motor stators typically use 3-phase windings for smooth, high-speed rotation with feedback control, while stepper motor stators have 2-phase or 4-phase windings for precise step-by-step positioning without feedback. Servo stators are optimized for dynamic torque, whereas stepper stators focus on holding torque and step accuracy.

How do stator windings affect motor performance?

Winding configuration, wire gauge, and turn count directly impact torque, speed, efficiency, and thermal characteristics. Higher turn counts increase torque but reduce speed, while thicker wire lowers resistance for higher current capacity. Proper winding design minimizes cogging, reduces losses, and ensures compatibility with drive electronics.

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CNFX Industrial Component Index · 机械和设备制造

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