Washer dryer

The washing machine's rotatable exhaust port and flexible air passage address condensation and mold issues, ensuring flexible installation and energy-efficient operation.

JP7888301B2Active Publication Date: 2026-07-13HITACHI GLOBAL LIFE SOLUTIONS INC
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Patent Information

Application Number
JP2022036758
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2022-03-10
Publication Date
2026-07-13
Estimated Expiration
2042-03-10

AI Technical Summary

Technical Problem

Conventional washing and drying machines face issues with fixed exhaust ports causing condensation and mold growth on surrounding walls, limited installation flexibility due to fixed exhaust direction, and inefficient energy use.

Method used

A washing machine design with a rotatable external exhaust port and flexible air passage that allows the exhaust direction to be adjusted, preventing humid air from directly hitting walls and enabling installation in various environments while reducing power consumption and compressor load.

Benefits of technology

The design effectively prevents wall discoloration and mold growth, enhances user convenience by accommodating different installation scenarios, and improves energy efficiency and drying time.

✦ Generated by Eureka AI based on patent content.

Smart Images

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Patent Text Reader

Abstract

To provide a washing and drying machine enabling reduction of a drying time and power consumption while suppressing color change and occurrence of molds on a wall in an installation environment of the washing and drying machine or enabling reduction of load of compressor of a heat pump unit.SOLUTION: A washing and drying machine comprises: a casing 2; an outer tank 3 that is disposed in the casing 2 and stores water; a rotatable drum 4 that is disposed in the outer tank 3 and can store laundry; an air blower 5a for feeding air to the inside of the outer tank 3 and the drum 4; an air outlet 5c feeding air into the drum 4; a circulation air passage 5d that connects the outer tank 3 with the air blower 5a; dehumidifying and heating means that is disposed in the circulation air passage 5 and dehumidifies and heats the air; an air channel filter 6 disposed between the outer tank 3 and the air blower 5a; an inlet port 11 that is connected to the circulation air passage 5d and suctions the air in the outside of the outer tank 3; and a machine-outside exhaust port 21 that is disposed in the casing 2 and connected to the circulation air passage 5d. Direction or position of the machine-outside exhaust port 21 can be arbitrarily changed.SELECTED DRAWING: Figure 2
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Citation Information

Patent Citations

  • Device for altering direction of moisture ejection and clothes dryer equipped therewith

    JP1998179992A

  • Device for altering direction of moisture ejection and clothes dryer equipped therewith

    JP1998179993A

  • Garment drier and drier with washing function

    JP2004215943A

  • Washer / dryer

    JP2007082783A

  • Washing and drying machine

    JP2020014745A