Multi-component injection molding system e.g. acceleration or rotational rate sensor, for ball-point pen, has plastic component comprising stiff part and elastic member and coupled with elastic member of another plastic component

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This patent describes a multi-component injection molding system for devices like acceleration or rotation sensors. The invention uses at least two plastic components, where one may be electrically insulated and the other includes a special piezoelectric material (lead-zirconate-titanate). These components are designed with specific stiff and elastic parts and are interconnected to enhance sensor functionality.

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• Manufacturing precise acceleration or rotation sensors in electronics
• Building pressure or force sensors for automotive or industrial use
• Producing components for ball-point pens with built-in sensing capabilities
• Applications in microelectromechanical systems (MEMS)
• Consumer electronics requiring movement or tilt detection

BenefitsContent extracted from patent full text and abstract with AI.

• Enables complex sensor manufacturing using injection molding, improving production efficiency
• Allows integration of electrically insulated and electrically active (piezoelectric) components for advanced functionality
• Improves mechanical and electrical properties by combining stiff and elastic elements
• Supports miniaturization and cost reduction for sensor-based products
• Facilitates the creation of compact, multi-functional devices with fewer assembly steps

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Patent Abstract

The system i.e. acceleration sensor (1), has two plastic components connected with one another, where one of the plastic components is electrically insulated and the other plastic component comprises lead-zirconate-titanate. The latter plastic component comprises a stiff part and an elastic member and is coupled with an elastic member of the former plastic component. The stiff part is selected from one of a group consisting of a housing (2), housing component, frame, stopper (5), mechanical element, break section, electrical contact surface and/or seismic mass (4). The elastic member is designed as a bending spring (3), torsion spring, tension spring, bistable spring element and/or membrane. An independent claim is also included for a method for manufacturing a multi-component injection molding system.