Modular Displacement Sensor for Washing Machine Dampers
Here’s PatSnap Eureka !
Summary
Problems
Existing displacement sensors for washing machine dampers are complex to handle and mount, leading to increased assembly time and production costs, and are not easily replaceable, especially for high-priced dampers like spring or oil-hydraulic types.
Innovation solutions
A pre-assembled displacement sensor module for telescopic-type dampers, comprising a coil element and electronic detection unit, designed for easy mounting and replacement, with a combined unit that can be slipped or screwed onto the damper, featuring a coil housing and support that fits over the damper casing, and attaching means like snap-fitting for convenient handling and maintenance.
TRIZ Analysis
Specific contradictions:
General conflict description:
Principle concept:
If a displacement sensor is mounted on a telescopic-type damper in a washing machine, then the displacement and weight of laundry can be detected, but the sensor is complex to handle and mount, increasing assembly time and production costs
Why choose this principle:
The displacement sensor is segmented into a modular sensor module that can be independently handled and mounted. The sensor module includes a sensor element mounted on a support structure with electrical connections, allowing it to be assembled separately and then attached to the damper as a complete unit, simplifying the assembly process while maintaining measurement precision
Principle concept:
If a displacement sensor is mounted on a telescopic-type damper in a washing machine, then the displacement and weight of laundry can be detected, but the sensor is complex to handle and mount, increasing assembly time and production costs
Why choose this principle:
The sensor element is pre-mounted on the support structure with electrical connections established before attachment to the damper. This preliminary assembly of the sensor module reduces the complexity during final installation, as the entire sensor assembly can be mounted in one operation rather than assembling individual components on the damper during production
Application Domain
Data Source
AI summary:
A pre-assembled displacement sensor module for telescopic-type dampers, comprising a coil element and electronic detection unit, designed for easy mounting and replacement, with a combined unit that can be slipped or screwed onto the damper, featuring a coil housing and support that fits over the damper casing, and attaching means like snap-fitting for convenient handling and maintenance.
Abstract
A displacement sensor module 1 for mounting on a telescopic-type damper 30, a damper/detector assembly including such a displacement sensor module and a telescopic-type damper, and a household appliance including such a damper/detector assembly is provided. The displacement sensor module 1 includes at least one coil element 4, an electronic detection unit 8 connected to the at least one coil element 4 and adapted to detect an impedance change of the at least one coil element, and a coil housing 2 for receiving and additionally or alternatively a coil support 6 for supporting the at least one coil element 4 and for supporting the electronic detection unit 8. The displacement sensor module 1 is adapted to be mounted on a telescopic-type damper 30, wherein in particular the housing 2 or support 6 is adapted to fit over a portion of a pre-assembled damper 30.