Single-Point Pump Suspension for Low-Vibration Dishwashers
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Solution Overview
Problem
Existing water-bearing household appliances, such as dishwashers, face challenges in reducing noise and vibration due to the high number of suspension elements required to absorb the weight and vibrations of circulating pumps, leading to increased costs and assembly complexity.
Innovation Solution
A suspension device with a single point of attachment at the center of gravity, utilizing elastic sections and non-circular openings and pins for efficient vibration damping, and featuring a constriction for stress distribution and stability, allowing for compact and cost-effective assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If multiple suspension elements are used to absorb weight and vibrations of circulating pumps, then vibration absorption is improved, but device complexity and assembly effort increase
Solution Approach 1:
The patent combines multiple suspension elements into a single integrated elastic suspension device with a base body that has multiple openings. This base body simultaneously performs multiple suspension functions while reducing the total number of separate components, thereby simplifying the device structure and reducing assembly effort while maintaining vibration absorption capability.
Solution Approach 2:
The elastic suspension device serves multiple functions: it absorbs vibrations, supports the weight of the circulating pump, and provides a stable mounting structure. The base body with multiple openings allows a single component to fulfill roles that previously required multiple separate suspension elements, making the suspension system more universal and efficient.
2Object-affected harmful factors
If multiple suspension elements are used to absorb vibrations, then vibration damping is improved, but manufacturing costs increase
Solution Approach 1:
By merging multiple suspension elements into a single elastic suspension device with a base body, the patent reduces the number of parts that need to be manufactured, stored, and assembled. This consolidation lowers manufacturing costs while maintaining the vibration damping performance through the elastic properties of the base body material.
3Stability of the object's composition
If suspension elements are arranged away from center of gravity, then attachment stability is improved, but mechanical loads increase
Solution Approach 1:
The patent positions the elastic suspension device at the center of gravity of the circulating pump, creating an equipotential arrangement where gravitational forces are evenly distributed. This central positioning reduces mechanical loads on the suspension elements while maintaining attachment stability, as the suspension base body is designed to handle loads symmetrically from its multiple openings.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively reduces noise and vibration transfer, enhances mechanical stability, and simplifies assembly while ensuring the suspension device can absorb torques and vibrations, leading to cost savings and extended service life.
Implementation Method 1
the suspension device has at least one elastic section. As a result, oscillations and vibrations are dampened or completely absorbed
Implementation Method 2
oscillations and vibrations are dampened or completely absorbed. This results in a further noise reduction
Data Source
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AI summary
The invention relates to a water-bearing household appliance, in particular a dishwasher or washing machine, comprising at least one appliance element (33) with an appliance component (20) attached thereto at suspension point. According to the invention, the suspension point is disposed in the area of the center of gravity of the appliance component (20).