Compact Dishwasher Drying Module for Enhanced Performance
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Summary
Problems
Existing dishwasher drying modules, particularly closed-circulation types, face challenges such as high manufacturing costs, large size, and reduced miniaturization potential, along with issues like water backflow and moisture vapor introduction that degrade drying performance.
Innovation solutions
A compact and cost-effective closed-circulation drying module design that incorporates a condensing duct system to remove moisture from air, a fan and heater configuration that prevents water contact, and a distributor layout to enhance air circulation and drying efficiency.
TRIZ Analysis
Specific contradictions:
General conflict description:
Principle concept:
If a closed-circulation drying module is used to improve drying performance, then drying performance is improved, but manufacturing cost increases and installation space increases
Why choose this principle:
The drying module is segmented into functionally independent components: a drying chamber for air circulation, a condensing duct system with separate moisture discharge path, a heater unit, and a fan assembly. This segmentation allows each component to be optimized independently and assembled in compact configurations, achieving closed-circulation drying performance with reduced overall complexity and space requirements
Principle concept:
If a closed-circulation drying module is used to improve drying performance, then drying performance is improved, but manufacturing cost increases and installation space increases
Why choose this principle:
The patent implements nested positioning where the fan is disposed at the lower end of the drying chamber, the heater is positioned at the lower side, and the condensing duct is nested within the drying chamber structure. The moisture discharge port is integrated into the condensing duct system. This nesting arrangement allows multiple components to occupy overlapping or adjacent spaces efficiently, reducing the total installation footprint while maintaining closed-circulation functionality
Application Domain
Data Source
AI summary:
A compact and cost-effective closed-circulation drying module design that incorporates a condensing duct system to remove moisture from air, a fan and heater configuration that prevents water contact, and a distributor layout to enhance air circulation and drying efficiency.
Abstract
The present disclosure relates to a dishwasher (1) comprising: a tub (12) having a washing space (12S) therein and comprising a bottom (12B), an upper wall (12T), one sidewall (12R), the other sidewall (12L), and a rear wall (12RR); a door (14) disposed at a front side of the tub (12) and configured to open or close the washing space (12S); and a drying device (100) configured to dry the washing space (12S). The drying device (100) comprises: a drying duct (110) configured to communicate with the inlet port (HI) and the outlet port (H2), disposed outside the tub (12), and comprising a condensing duct (112) and a return duct (114); a fan (130) configured to allow air in the drying duct (110) to flow; and a heater (140) configured to heat the air in the drying duct (110). The condensing duct (112) comprises: a first condensing duct (1122) facing an outer surface of the one sidewall (12R) and having an upstream end communicating with the inlet port (HI); and a second condensing duct (1124) disposed lower than the bottom (12B) and having an upstream end communicating with a downstream end of the first condensing duct (1122). An upstream end of the return duct (114) communicates with a downstream end of the second condensing duct (1124), and a downstream end of the return duct (114) communicates with the outlet port (H2). Accordingly drying performance of the dishwasher (1) is improved by a simple configuration and at low cost.