1. Application of heat shrink tube in automotive motor
Features:
Insulation protection: Wrap motor windings and wire connections to prevent short circuit or leakage.
Waterproof and moisture-proof: Through the heat shrink seal, avoid water vapor, oil intrusion.
Mechanical protection: Enhance the wear resistance of the wiring harness or connecting parts.
Identification function: Color heat shrink tubes can be used to distinguish lines of different voltage levels.
Typical application scenarios:
Motor winding end: protect the exposed part of the winding to prevent breakdown or oxidation.
High voltage harness connection (such as electric vehicles) : Insulation of the high voltage joint between the battery, inverter and motor.
Sensor cable: Encapsulates the connection points for temperature sensors and position sensors.
Material selection:
Polyolefin heat shrink pipe: commonly used, temperature 125℃~150℃, low cost.
Fluororubber heat shrink pipe: high temperature resistance (above 200℃), oil resistance, suitable for high temperature areas.
Double-wall heat shrink tube: inner layer with adhesive, better sealing, suitable for humid environment.
2. The application of bellows in automotive motors
Features:
Mechanical protection: Protect wire harnesses or pipes from vibration, friction, and extrusion.
Heat dissipation assistance: Some bellows are designed to promote air circulation and assist heat dissipation.
Environmental resistance: dustproof, oil proof, chemical corrosion proof.
Flexible wiring: adapt to the complex spatial layout around the motor.
Typical application scenarios:
Motor external wire harness protection: wrap the motor power cord and signal line to avoid friction with the body.
Cooling line: Some hoses of the motor cooling system use high temperature bellows.
Rotor/stator leads: Flexible protection when space is limited
