INDUSTRY COMPONENT

Receiving Coil

Receiving coil for automotive wireless charging systems that converts magnetic fields into electrical energy.

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Component Specifications

Definition
A precisely engineered inductive coil component in automotive wireless power transfer systems that captures alternating magnetic fields from a transmitting coil and converts them into usable electrical current through electromagnetic induction, typically operating at frequencies between 85-205 kHz for automotive applications.
Working Principle
Operates on Faraday's law of electromagnetic induction where alternating magnetic fields from the transmitter coil induce an alternating voltage in the receiving coil windings, which is then rectified and regulated to charge vehicle batteries.
Materials
Litz wire (typically 200-500 strands of AWG 44-46 copper), ferrite core (Mn-Zn or Ni-Zn), polyimide or epoxy insulation, aluminum shielding, polycarbonate housing
Technical Parameters
  • Q Factor >100
  • Efficiency >90%
  • Inductance 10-100 μH
  • Power Rating 3.3-22 kW
  • DC Resistance <100 mΩ
  • Resonant Frequency 85-205 kHz
  • Alignment Tolerance ±75 mm
  • Coupling Coefficient 0.1-0.3
  • Operating Temperature -40°C to 125°C
Standards
ISO 19363, SAE J2954, IEC 61980, DIN EN 61851

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Receiving Coil.

wireless power transfer coil automotive receiving coil EV charging coil inductive charging component SAE J2954 compliant Litz wire coil ferrite core receiver Receiving Coil Receiving Coil in Motor Vehicle Manufacturing

Parent Products

This component is used in the following industrial products

Automotive Wireless Power Transfer System

Wireless charging system for electric vehicles using electromagnetic induction.

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Engineering Analysis

Risks & Mitigation
  • Electromagnetic interference with vehicle electronics
  • Thermal overheating during high-power transfer
  • Mechanical damage from vehicle impacts
  • Corrosion in harsh environments
  • Resonance frequency drift over time
FMEA Triads
Trigger: Litz wire insulation breakdown
Failure: Short circuit between strands reducing Q factor
Mitigation: Use high-temperature polyimide insulation and implement thermal monitoring
Trigger: Ferrite core cracking
Failure: Reduced magnetic coupling and efficiency drop
Mitigation: Implement mechanical stress relief design and vibration testing
Trigger: Moisture ingress
Failure: Corrosion and insulation degradation
Mitigation: Apply conformal coating and achieve IP67 rating

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±5% inductance tolerance, ±2% resonant frequency tolerance, <1mm dimensional tolerance on critical features
Test Method
Vector network analyzer for impedance characterization, thermal imaging for hotspot detection, HALT testing for environmental robustness, EMC testing per CISPR 25

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Balancing Circuit
Electronic circuit in automotive BMS that equalizes voltage across battery cells to optimize performance and lifespan.
Communication Transceiver
A bidirectional communication transceiver for automotive BMS enabling data exchange between battery cells and control units.

Frequently Asked Questions

What is the typical efficiency range for automotive receiving coils?

Modern automotive receiving coils achieve 90-95% efficiency in optimal alignment conditions, with system efficiency typically 85-92% including power electronics.

How does alignment affect receiving coil performance?

Misalignment reduces coupling coefficient and efficiency. Modern systems maintain >85% efficiency within ±75mm lateral offset through optimized coil design and control algorithms.

What materials are critical for high-frequency performance?

Litz wire minimizes skin effect losses at high frequencies, while Mn-Zn ferrite cores provide high permeability and low core losses at 85-205 kHz operating ranges.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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