Dishwasher Base Layout for Door Balance and Control Module Cooling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Dishwashers face issues with overturning due to changes in the center of mass when the door is opened, potential submergence of control modules, and overheating of control modules from heat transfer, particularly from the air supply device's heating part.
Innovation Solution
Incorporating an air supply device and control module as a balance weight to stabilize the dishwasher, positioning them to counteract the door's mass and prevent overturning, and using a separate layout to prevent heat transfer and provide cooling airflow to the control module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the door is made heavy to improve closing force, then the door can close more effectively, but the dishwasher may overturn when the door is opened
Solution Approach 1:
The patent positions the air supply device at the rear of the dishwasher base to function as a counterweight that balances the mass of the door at the front. This creates a balanced center of mass distribution, preventing the dishwasher from overturning when the door is opened while maintaining sufficient door weight for effective closing
2Area of stationary object
If the control module is disposed in the lower portion of the dishwasher to save space, then space utilization is improved, but the control module may be submerged in water
Solution Approach 1:
The patent positions the control module on the upper surface of the base rather than in the lower portion, utilizing the vertical dimension to elevate it above the water level in the sump. This spatial repositioning in the vertical dimension prevents submergence while maintaining compact overall design
3Area of stationary object
If the heating part is positioned close to the control module to save space, then space utilization is improved, but the control module may overheat from heat transfer
Solution Approach 1:
The patent positions the heating part and control module at different locations on the base structure, utilizing spatial distribution in multiple dimensions to maintain adequate thermal separation. The control module is placed on the upper surface while the heating part is positioned in the air supply device at the rear, creating sufficient thermal distance to prevent overheating
4Stability of the object's composition
If the air supply device is positioned at the rear of the base to balance the door, then dishwasher stability is improved, but the control module may be exposed to heat from the heating part
Solution Approach 1:
The patent segments the base structure into distinct functional zones: the control module is positioned on the upper surface in one area, while the heating part in the air supply device is positioned at the rear in a separate area. This spatial segmentation creates thermal zones that prevent heat transfer from the heating part to the control module while maintaining the rear positioning needed for balance
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
Effectively prevents dishwasher overturning, suppresses submergence of control modules, and reduces overheating by using the air supply device and control module as a balance weight and ensuring proper airflow for cooling.
Implementation Method 1
an air supply device that is mounted on the base and sprays air to the tub
Implementation Method 2
a heating part may be provided in the air supply device, to spray heated air, i.e., hot air, into the tub
Implementation Method 3
a structure that supplies air for cooling to the control module is required to suppress the overheating of the control module
Data Source
AI summary
A dishwasher includes a tub that defines a wash space configured to accommodate one or more objects to be washed, a base that is disposed below the, a door configured to open and close the wash space, a sump disposed under the tub and configured to store wash water, and an air supply device disposed at the base and configured to supply air to the tub, wherein the door is disposed forward relative to the sump in a front-rear direction of the base, and wherein the air supply device is disposed rearward relative to the sump in the front-rear direction.