JP-2026075738-A - Washer dryer

Abstract

[Problem] The objective is to provide a washing machine with improved dehumidification performance while suppressing cost increases. [Solution] The washing and drying machine of the present invention comprises an outer tub 2 housed inside a box 1 for storing washing water, an inner tub 3 housed inside the outer tub 2 for accommodating laundry, a blower 4 for supplying air to the outer tub 2 and the inner tub 3, a circulating air passage 5 from an intake port 5i at the rear of the outer tub 2 for drawing in circulating air to an outlet port 5o for blowing the circulating air into the inner tub 3, a heater 6 housed within the circulating air passage 5 for heating the circulating air, and a heat exchanger 8 housed within the circulating air passage 5 for dehumidifying the circulating air. The heat exchanger 8 is erected to extend in the vertical direction and is equipped with a plurality of heat exchange ribs 8b that protrude into the circulating air passage 5, and a water channel 8a4 through which water flows is provided inside the plurality of heat exchange ribs 8b. [Selection Diagram] Figure 3

Inventors

• 川村 圭三
• 塚本 和寛
• 高橋 諒
• 高橋 幸太郎
• 小池 裕之

Assignees

• 日立グローバルライフソリューションズ株式会社

Dates

Publication Date

20260511

Application Date

20241023

Claims (9)

1. The outer shell consists of a box-like structure, The box is equipped with an outer tub for storing washing water, An inner tub for storing laundry is provided inside the outer tub, A blower that supplies air to the outer tank and the inner tank, A circulating air path from an intake port that draws in circulating air at the rear of the outer tank to an outlet port that blows the circulating air into the inner tank, A heating means provided within the aforementioned circulating air passage for heating the circulating air, A washing and drying machine comprising a heat exchanger provided in the aforementioned circulating air passage for dehumidifying the circulating air, The heat exchanger is erected so as to extend in the vertical direction and is equipped with a plurality of heat exchange ribs that protrude toward the circulating air passage. A washing and drying machine characterized in that the inside of the plurality of heat exchange ribs is provided with water channels through which water flows.
2. In the washing and drying machine according to claim 1, A washing machine and dryer characterized in that the inner surfaces of the plurality of heat exchange ribs are provided with diffusion members that diffuse the water flowing through the water channels into the water channels.
3. In the washing and drying machine according to claim 2, The washing machine and dryer is characterized in that the diffusion member is a plurality of protrusions that project from the inner surface of the heat exchange rib toward the water channel.
4. In the washing and drying machine according to claim 3, A washing machine and dryer characterized in that the multiple protrusions are arranged in a vertical direction, and the positions of adjacent protrusions in the vertical direction are offset.
5. In the washing and drying machine according to claim 4, A washing machine and dryer characterized in that the multiple protrusions are arranged alternately on the left and right sides.
6. In the washing and drying machine according to claim 3, A washing machine and dryer characterized in that the plurality of protrusions are circular.
7. In the washing and drying machine according to claim 3, The washing machine and dryer is characterized in that the plurality of protrusions are rectangular ribs inclined with respect to the horizontal direction, and are arranged so that the inclination directions of adjacent protrusions are different vertically.
8. In the washing and drying machine according to claim 3, A washing machine and dryer characterized in that the outer sides of the plurality of heat exchange ribs are provided with resistance members that protrude outward and disrupt the flow of the circulating air.
9. In the washing and drying machine according to claim 3, The heat exchanger is characterized by being formed by bending a metal plate to create the plurality of heat exchange ribs in a washing machine and dryer.

Description

This invention relates to a washer-dryer. A washer-dryer performs washing and drying of clothes in a single process. An example of washer-dryer technology is described in Patent Document 1. The washer-dryer described in Patent Document 1 comprises a water tank, a blower for supplying drying air, a circulating air passage connecting the tank and the blower, a drying filter installed between the circulating air passage and the blower in a manner that allows the user to remove it from the machine, and a heater. The heater heats the air blown from the fan during the drying process, creating warm air. This warm air dries the clothes by removing moisture. The moisture-laden warm air is then cooled and dehumidified by a heat exchanger. The washer-dryer described in Patent Document 1 uses a water-cooled dehumidification type heat exchanger. Water-cooled dehumidifying washer-dryers dehumidify during the drying process by circulating tap water through a portion of the circulating air path, causing the humid circulating air to come into contact with the tap water. Japanese Patent Publication No. 2023-42078 (Figure 2, paragraph 0021, etc.) This is a cross-sectional view of the main components of a drum-type washing and drying machine S according to Embodiment 1 of the present invention, viewed from the side.This is a cross-sectional view of the main part of the heat exchanger 8 of a drum-type washing and drying machine S according to Embodiment 1 of the present invention, viewed from the side.This is a three-view drawing of the heat exchanger of a washing machine/dryer according to Embodiment 1 of the present invention, viewed from above, the front, and the side.This is a three-view drawing of the heat exchanger of a washing machine/dryer according to Embodiment 2 of the present invention, viewed from above, the front, and the side.This is an external perspective view of the heat exchanger of a washing machine according to Embodiment 2 of the present invention.This is a plan view of the heat exchanger 8 of a washing machine and dryer according to Embodiment 2 of the present invention, unfolded in a planar manner.This is a perspective view showing the heat exchanger 8 of a washing machine/dryer according to Embodiment 2 of the present invention in a state where it is folded along the fold 8e. The embodiments of the present invention will be described below with reference to the drawings. In principle, the same reference numerals are used for the same elements in all the drawings. Furthermore, descriptions of parts with the same function will be omitted. It should be noted that the configurations described below are merely embodiments, and it is not intended that the embodiments of the present invention are limited to the specific embodiments described below. In the following examples, the side with the door 1d for loading and unloading laundry is defined as the "front," and the side opposite the door is defined as the "rear." Furthermore, the bottom of each diagram is defined as the "bottom," and the top of each diagram is defined as the "top."