CN-121976373-A - Washing machine

Abstract

The invention provides a washing machine capable of improving cleaning performance. The washing machine includes a tub, a spin basket provided in the tub and rotatable about a rotation axis, a motor for rotatably driving the spin basket, a water supply valve connected to an external water source and opening and closing a water supply path for supplying water from the external water source to the tub, a fine bubble generator provided on a downstream side of the water supply valve and generating fine bubble water by including fine bubbles mainly including ultrafine bubbles in the water passing through the interior, an injection unit provided on a downstream side of the fine bubble generator and injecting the fine bubble water from above the rotation axis to the interior of the spin basket, and a control unit for performing a washing operation including a rinsing step, wherein the control unit controls the water supply valve in the rinsing step and is capable of performing a spraying operation for injecting the fine bubble water from the injection unit.

Inventors

• KATO SHUN
• AKUTSU YOSHINORI
• UCHIYAMA TOMONORI

Assignees

• 美的集团股份有限公司

Dates

Publication Date

20260505

Application Date

20250609

Priority Date

20241025

Claims (6)

1. 1. A washing machine is provided with: a water tub; The rotary barrel is arranged in the water containing barrel and can rotate around a rotating shaft; a motor for rotationally driving the rotary tub; a water supply valve connected to an external water source and opening and closing a water supply path for supplying water from the external water source to the tub; A fine bubble generator provided downstream of the water supply valve, for generating fine bubble water by including fine bubbles mainly composed of ultrafine bubbles in the water passing through the water supply valve; An injection part arranged at the downstream side of the fine bubble generator for injecting the fine bubble water from the upper part of the rotating shaft to the inside of the rotating barrel, and A control part for executing the cleaning operation including the rinsing process, In the rinsing step, the control unit controls the water supply valve so that the spraying operation for causing the spraying unit to spray the fine bubble water can be performed.
2. 2. The washing machine as claimed in claim 1, wherein, In the execution of the shower operation, the control unit drives the motor to perform an operation including a stirring operation for rotating the tub.
3. 3. The washing machine as claimed in claim 2, wherein, The rotation speed of the rotary drum in the stirring action is the rotation speed that the clothes in the rotary drum are attached to the inner peripheral wall of the rotary drum and then fall down due to gravity after being lifted.
4. 4. The washing machine as claimed in claim 2, wherein, The control unit alternately repeats forward rotation and reverse rotation of the rotary tub during the stirring operation.
5. 5. The washing machine as claimed in claim 2, wherein, The operation includes a stopping operation of stopping rotation of the rotary tub.
6. 6. The washing machine as claimed in claim 1, wherein, The washing machine further includes a main water supply valve for opening and closing a main water supply path for supplying water from the external water source between the tub and the drum, The control unit opens the main water supply valve to supply water from the main water supply path into the tub during execution of the shower operation.

Description

Washing machine Technical Field Embodiments of the present invention relate to a washing machine. Background Conventionally, there is known a technique of improving cleaning performance by using fine bubble water containing fine bubbles such as micro-bubbles (fine bubbles) and ultrafine bubbles (ultrafine bubble) for a washing machine. Patent document 1 discloses a structure in which a fine bubble generator is provided in the middle of a circulation path for circulating water in a tub by driving a circulation pump so that washing water contains a large amount of fine bubbles. In patent document 1, in the rinsing step, water is sprayed to the laundry through the circulation path, thereby achieving cleaning performance. Prior art literature Patent literature Patent document 1 Japanese patent application laid-open No. 2016-209331 Disclosure of Invention Problems to be solved by the invention However, in the related art, after supplying water to the inside of the tub in advance to a prescribed water level, when the circulation pump is driven to circulate the water in the tub and return the water to the inside of the tub, the water containing fine bubbles is sprayed. In such a configuration, for example, in the rinsing step, if the circulation pump can be driven without waiting until the predetermined water level is reached from the start of water supply, the rinsing effect by the injection of the water containing fine bubbles cannot be obtained. Therefore, in the conventional structure, it is difficult to obtain the rinsing effect by the water injection from the early stage immediately after the start of the water supply within a predetermined operation time, and there is room for improvement in terms of improvement of the cleaning performance including the rinsing effect. Accordingly, a washing machine capable of achieving an improvement in cleaning performance is provided. Means for solving the problems The washing machine of the embodiment comprises a water tank, a rotary drum arranged in the water tank and capable of rotating around a rotating shaft, a motor for driving the rotary drum in a rotating mode, a water supply valve connected with an external water source and used for opening and closing a water supply path for supplying water from the external water source to the water tank, a fine bubble generator arranged at the downstream side of the water supply valve and used for generating fine bubble water by containing fine bubbles mainly comprising the fine bubbles in the water, an injection part arranged at the downstream side of the fine bubble generator and used for injecting the fine bubble water from the upper side of the rotating shaft to the inside of the rotary drum, and a control part for executing a cleaning operation comprising a rinsing procedure, wherein the control part controls the water supply valve and can execute a spraying operation for enabling the injection part to inject the fine bubble water. Technical effects The washing performance of the washing machine can be improved. Drawings Fig. 1 is a longitudinal cross-sectional side view schematically showing an example of a washing machine according to a first embodiment. Fig. 2 is a front view schematically showing an example of the positional relationship between the tub and the spouting portion of the washing machine according to the first embodiment. Fig. 3 is a diagram showing an example of a path of water supplied from an external water source in the washing machine according to the first embodiment. Fig. 4 is a perspective view showing an example of the fine bubble generator of the washing machine of the first embodiment. Fig. 5 is a cross-sectional view showing an example of the fine bubble generator of the washing machine of the first embodiment. Fig. 6 is a block diagram showing an example of an electrical structure of the washing machine of the first embodiment. Fig. 7 is a flowchart showing an example of the entire washing operation process of the washing machine according to the first embodiment. Fig. 8 is a diagram showing an example of control contents during a washing operation of the washing machine according to the first embodiment. Fig. 9 is a diagram showing another example of the control content in the rinsing step of the washing machine according to the first embodiment. Fig. 10 is a diagram showing an example of control content in the rinsing step of the washing machine according to the second embodiment. Detailed Description Hereinafter, a plurality of embodiments will be described with reference to the drawings. In the respective embodiments, substantially the same structures are denoted by the same reference numerals, and description thereof is omitted. (First embodiment) First, a first embodiment will be described with reference to fig. 1 to 9. The washing machine 1 shown in fig. 1 is, for example, a horizontal shaft type in which the rotation axis Ra of the rotary tub 14 is oriented in the horizontal directio