Thermal Switch Details TRIZ Cases

Integrated bi-metal thermal conductive elements retract from terminals to interrupt power, eliminating bulky breakers and reducing device complexity.

A fuse element uses a mismatched thermal expansion substrate to fracture under overcurrent, creating a large gap between contacts.

A thermal switch uses a plunger to lift a movable contact via a bimetallic disc, isolating the actuator from current-carrying components.

Adding a third bearing area to the switch housing prevents tilting of the current transfer member, ensuring stable contact resistance under high currents.

A co-formed conductive device merges a terminal and heater into one bent metallic plate to generate resistance heat.

A damping film absorbs vibration energy from a freely inserted bimetallic snap-action disc, reducing noise and mechanical loading without complex designs.

Lateral magnet placement reduces housing height below 25 mm while maintaining sufficient actuating force for reliable switching over plaster.

Phase-changing matter expands when heated to drive the switch mechanism, replacing complex motors and reducing device volume.

Integrating a temperature sensor into the contactor shaft assembly detects shorting bar overheating to prevent overcurrent faults.

A thermo-mechanical heating switch uses a click spring to enable manual reactivation, preventing unintended blocking of the switching mechanism.

Bent plate planes on the movable plate direct airflow to prevent arcs from reaching conductive parts in high-current environments.

Segmenting the contact area from the snap-action disk prevents internal stresses during welding, maintaining mechanical function and reducing production costs.

Separating the heater and magnet with a synthetic resin fixing portion prevents heat conduction that causes inaccurate bimetal operation.

Helium gas filling and cadmiumless contact materials reduce arc damage, maintaining current cutoff performance without increasing device size.

One-sided spot welding joins supply lines to terminal surfaces on a temperature-dependent switch housing.

Helium gas at controlled pressure directs arcs across contact surfaces, reducing welding and enabling compact high-current cutoff performance.

A thermal protector movable plate combines precipitation-hardened stainless steel with a high-conductivity aluminum bypass member.

A breaker uses a withdrawal portion embedded in a resin case recess to optimize component spacing.

A temperature-dependent switch uses a protruding pressure-uptaking structure to direct external loads into housing wall regions.

A temperature limiter uses a folded insulating sleeve to reduce length while maintaining electrical creepage distance.

Symmetrical electrothermal actuation distributes mechanical stress across dual legs, extending service life of the bistable micro-relay.

A breaker movable piece features an arc-shaped narrow elastic portion to reduce bending rigidity.

Protective cap directs pressure into housing side walls to prevent PTC cover damage.

A power switch protection circuit adjusts its temperature threshold based on real-time conduction voltage to detect thermal states accurately.

A rotational disc mechanism interrupts electric arcs by extending separation distance, ensuring reliable disconnection during thermal overload.

A temperature-dependent switch uses a curved peripheral edge to press an insulating film against the cover part.

A bimetal part uses inner and outer regions stamped in opposite directions to generate opposing forces that stabilize switching points.

Positioning the bimetal element's inversion area away from the conduction path prevents false triggering caused by internal Joule heating.

A resettable sensor assembly uses a shape memory alloy actuator to translate a pin between electrical contact positions.

Thermionic coolers adjust vanadium oxide temperature to toggle conductivity, enabling frequency reconfigurable phased array radar switching.

Merges the bimetal, contacts, and terminals into one component to eliminate ceramic substrates and reduce assembly complexity.

Direct contact between the PTC resistor and bimetallic snap disk prevents undesired snapback, reducing energy consumption while simplifying production.

Segmentation and nesting resolve reliability issues from repeated tripping in miniaturized automotive circuit breakers.

Dual heating bands connected via braided wire to a bimetallic strip enhance thermal deflection in thermomagnetic circuit breakers.

A thermal trip compensation structure adjusts a bimetal strip gap via an inclined slant surface to mitigate deformation effects.

Partitioning the movable plate with a slim hole creates a resistor that eliminates separate components, reducing manufacturing complexity.

A temperature-dependent switch uses a shape memory alloy anchor element to maintain an open state after activation.

Segmented connecting lugs encased in a sintered insulating layer eliminate riveting and prevent mechanical deformation during assembly.

Helium pressure suppresses arcs in cadmiumless silver-tin oxide contacts, maintaining current cutoff performance without increasing device size.

Adjustable magnet position mechanism sets instantaneous trip level in circuit breakers.