Washing Machine Lid Torsion Spring Application Example

Implementation of Buffer and Reset Functions in Household Appliances Using Metal Torsion Springs

Spring Structure Diagram

Constant Force Spring Door Diagram

Spring Characteristics

  • Material: High-carbon stainless steel alloy
  • Surface Treatment: Electrophoretic anti-rust coating
  • Operating Temperature: -20°C to 80°C
  • Maximum Torque: 15 N·m
  • Fatigue Life: Over 100,000 open/close cycles

Application Example Description

This example demonstrates a torsion spring as a critical component of washing machine lids, enabling smooth opening and closing movements. Through its special helical structure, the spring provides controlled torque during lid operation, ensuring smooth and safe functionality.

Working Principle

When users open the washing machine lid, the torsion spring stores potential energy; during closing, the spring releases energy to assist the process. This mechanism not only enhances user experience but also reduces mechanical wear, extending equipment lifespan.

The spring features right-angle bends at both ends (as shown in the diagram), a structural design that ensures secure installation between the washing machine frame and lid hinge, maintaining stable connections during long-term use.

By precisely calculating the spring's torsional stiffness and preload force, engineers can optimize the lid's motion curve to achieve soft-closing functionality, preventing sudden closures that could pose pinching hazards.

Safety Assurance

The spring's buffering mechanism prevents sudden lid closure, protecting users from injury, especially in households with children.

Long-lasting Durability

Special materials and treatment processes ensure the spring resists rust in humid environments while maintaining stable performance.

Quiet Operation

Precision-engineered spring movement reduces mechanical friction noise, enhancing product user experience.

Easy Installation

Standardized connection design and right-angle bent ends simplify production assembly processes, improving efficiency.