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JP-2026076031-A - washing machine

JP2026076031AJP 2026076031 AJP2026076031 AJP 2026076031AJP-2026076031-A

Abstract

[Problem] To provide a washing machine that can supply a stable concentration of ozone from an ozone generator. [Solution] The drum-type washing and drying machine 1 includes a first supply passage 300 and a second supply passage 400 connected to the first and second outlets of an ozone generator 200, respectively; a fan device 120 that draws in ozone generated by the ozone generator 200 through the first supply passage 300 and sends it to the washing tub W; a water supply passage 52 through which water supplied to the washing tub W and used for washing flows; an ejector 53 that generates negative pressure by the flow of water in the water supply passage 52, drawing in ozone generated by the ozone generator 200 through the second supply passage 400 due to the negative pressure and mixing it with the water flowing in the water supply passage 52; and a supply passage opening and closing means that opens the first supply passage 300 and closes the second supply passage 400 when ozone is drawn in by the fan device 120, and opens the second supply passage 400 and closes the first supply passage 300 when ozone is drawn in by the ejector 53. [Selection Diagram] Figure 1

Inventors

  • 大江 克己
  • 鳶 幸生
  • 江村 晃太

Assignees

  • 青島海爾洗衣机有限公司
  • アクア株式会社

Dates

Publication Date
20260511
Application Date
20241023

Claims (5)

  1. The washing tub where the washing takes place, An ozone generator having an ozone generating unit that generates ozone and a first outlet and a second outlet from which the ozone generated by the ozone generating unit is discharged, A first supply path and a second supply path connected to the first outlet and the second outlet, respectively, A fan device that draws in the ozone generated by the ozone generator through the first supply path and sends it to the washing tub, A water channel through which water supplied to the washing tub and used for washing flows, A negative pressure generating unit is provided in the waterway, which generates negative pressure due to the flow of water in the waterway, and draws in the ozone generated by the ozone generator through the second supply passage due to the negative pressure, and mixes it with the water flowing in the waterway. A supply path opening/closing means that opens the first supply path and closes the second supply path when ozone is drawn in by the fan device, and opens the second supply path and closes the first supply path when ozone is drawn in by the negative pressure generating unit, A washing machine characterized by having the following features.
  2. In the washing machine according to claim 1, The supply path opening and closing means is A first check valve is provided in the first supply passage and opens the first supply passage in the direction in which ozone flows, The second supply passage includes a second check valve that opens the second supply passage in the direction in which ozone flows, A washing machine characterized by the following features.
  3. In the washing machine according to claim 2, The first check valve and the second check valve include a valve body formed of an ozone-resistant material. A washing machine characterized by the following features.
  4. In the washing machine according to claim 1, The supply path opening and closing means is A first solenoid valve provided in the first supply path, A second solenoid valve provided in the second supply path, The control unit includes a control that opens the first solenoid valve and closes the second solenoid valve when ozone is drawn in by the fan device, and opens the second solenoid valve and closes the first solenoid valve when ozone is drawn in by the negative pressure generating unit. A washing machine characterized by the following features.
  5. In a washing machine according to any one of claims 1 to 4, The system further includes a water supply unit having the aforementioned water channel and a water supply valve, which supplies water to the washing tub through the water channel when the water supply valve is opened. A washing machine characterized by the following features.

Description

This invention relates to a washing machine. The washing machine may or may not have a drying function. A washing machine with a drying function equipped with an ozone generator is described in Patent Document 1. This washing machine is provided with a drying air passage having a blower, and a tank for storing the water used for washing. Air containing ozone generated by the ozone generator is drawn into the blower via a first supply passage when the blower rotates, creating negative pressure on the intake side, and is supplied to the drum through the drying air passage. Furthermore, the ozone-containing air generated by the ozone generator is drawn into the ejector via a second supply passage due to the negative pressure created when the water in the circulating tank passes through the ejector, and is mixed with the water passing through the ejector as fine bubbles. Thus, in the washing machine described above, the ozone generator has two outlets from which ozone-containing air is discharged, and these outlets are connected to a first supply path and a second supply path, respectively. Japanese Patent Publication No. 2010-284558 Figure 1 is a schematic side cross-sectional view showing the configuration of a drum-type washing machine and dryer according to an embodiment.Figure 2 is a plan cross-sectional view showing the configuration of an ozone generator, a first supply path, and a second supply path according to an embodiment.Figure 3(a) shows how ozone flows through the ozone generator and the first supply path when ozone is drawn in by a fan device according to an embodiment. Figure 3(b) shows how ozone flows through the ozone generator and the second supply path when ozone is drawn in by an ejector according to an embodiment.Figure 4 is a plan cross-sectional view showing the configuration of the ozone generator, the first supply path, and the second supply path according to Modification Example 1.Figure 5 is a plan cross-sectional view showing the configuration of the ozone generator, first supply path, second supply path, and control unit according to Modification Example 2.Figure 6(a) shows how ozone flows through the ozone generator and the first supply path when ozone is drawn in by the fan device, according to Modification Example 2. Figure 6(b) shows how ozone flows through the ozone generator and the second supply path when ozone is drawn in by the ejector, according to Modification Example 2. A drum-type washer-dryer, which is one embodiment of the washing machine of the present invention, will be described below with reference to the drawings. Figure 1 is a schematic side cross-sectional view showing the configuration of a drum-type washer-dryer 1. The drum-type washer-dryer 1 comprises a rectangular box-shaped casing 10. A circular opening 11 for loading laundry is formed on the front of the casing 10. The opening 11 is covered by a door 12 that can be opened and closed. An outer tub 20 is positioned inside the housing 10. The outer tub 20 is elastically supported by multiple dampers 21 and springs 22. A drum 23 is rotatably positioned inside the outer tub 20. The drum 23 rotates around a horizontal axis. The drum 23 has a circular opening 23a on its front. Laundry is loaded into the drum 23 through the input opening 11 and the opening 23a. The outer tub 20 and the drum 23 constitute the washing tub W in which washing takes place. The outer tank 20 has a circular opening 20a in front of the opening 23a of the drum 23, which connects to the inlet 11 via a water-sealing packing (not shown). Numerous dewatering holes 23b are formed in the circumferential wall of the drum 23. Furthermore, baffles 24 for lifting laundry are provided inside the drum 23. Note that, if the drum 23 is of the horizontal axis type, it may rotate around a rotation axis inclined with respect to the horizontal direction. Behind the outer tub 20 is a drive motor 30 that generates torque to rotate the drum 23. The drive motor 30 is, for example, an outer rotor type DC brushless motor. During the washing, rinsing, and drying processes, the drive motor 30 rotates the drum 23 at a speed where the centrifugal force acting on the laundry inside the drum 23 is less than gravity, causing the laundry to tumble. On the other hand, during the dewatering process, the drive motor 30 rotates the drum 23 at a speed where the centrifugal force acting on the laundry inside the drum 23 is much greater than gravity, causing the laundry to stick to the circumferential walls of the drum 23. A drain port 20b is formed at the bottom of the outer tank 20. A drain channel 40, consisting of a drain hose or the like, is connected to the drain port 20b. A drain valve 41 and a drain filter 42 are provided in the drain channel 40. The drain valve 41 includes, for example, a valve and a torque motor for opening and closing the valve. When the drain valve 41 is opened, the water accumulated in the outer tank 20 is discharged outside the machine through