WO2020093943A1

WO2020093943A1 - Washing machine

Info

Publication number: WO2020093943A1
Application number: PCT/CN2019/115039
Authority: WO
Inventors: 刘尊安; 张皓钧; 杨丽梅
Original assignee: 青岛海尔洗衣机有限公司
Priority date: 2018-11-05
Filing date: 2019-11-01
Publication date: 2020-05-14
Also published as: JP7371306B2; CN111139618A; JP2022518651A

Abstract

Disclosed is a washing machine, comprising an inner drum for receiving clothes, a motor for powering the washing machine, and a pulsator provided in the inner drum and driven by the motor to alternatively rotate in forward and reverse directions; and further comprising at least two washing programs, wherein the time of single forward rotation of the pulsator in the second washing program is greater than the time of single forward rotation of the pulsator in the first washing program, and/or the time of single reverse rotation of the pulsator in the second washing program is greater than the time of single reverse rotation of the pulsator in the first washing program. According to the washing machine provided by the present invention, two different washing programs are set, and compared with the first washing program, the second washing program extends the time of the single forward and reverse rotations of the pulsator, reduces wear on delicate clothes, and avoids damage to the clothes due to frequent forward and reverse rotations of the pulsator, so that the washing machine can properly wash delicate clothes such as cashmere and woolen knitwears.

Description

A washing machine

Technical field

The invention belongs to the technical field of household appliances, and specifically relates to a washing machine.

Background technique

With the continuous improvement of people's living standards, the quality of life and the quality of laundry experience are gradually improved. Existing pulsator washing machines generally drive the pulsator (or the pulsator and the inner tub) by the motor to perform frequent forward and reverse operations to drive the water flow and wash the clothes. However, this kind of washing method causes great wear on the clothes, and it is easy to wash the clothes when washing clothes such as cashmere and wool.

In the ordinary washing machine, a drain motor is generally installed at the bottom of the outer tub, and the washing motor dehydration state conversion and the drain valve of the reducer are simultaneously controlled by the drain motor. The existing solution is to solve the problem that the pulsator (or the pulsator and the inner barrel) performs frequent forward and reverse operations, which causes greater wear on the clothes. Generally, an electric drain valve is added at the drain to specifically control the drain. Thereby, the original drainage motor can be specifically controlled to switch the washing and dewatering state of the reducer. Through program control, in the washing stage, the washing machine reducer is in the dehydration state through the action of the drain motor, so that the inner tub and the pulsator can achieve simultaneous and simultaneous operation of washing, reducing laundry wear.

The Chinese patent with the application number CN201510386727.2 discloses a pulsator washing machine and its control method. The pulsator washing machine includes an inner tub assembly and a dual rotor motor. The inner tub assembly includes an inner tub, a first pulsator and a second pulsator provided at the bottom of the inner tub; a dual rotor motor is connected to the inner tub assembly, and the dual rotor motor includes a first rotor and a second rotor The rotor and the dual rotor motor are configured such that when the pulsator washing machine is in the washing mode, the first rotor is connected to the first pulsator and the second rotor is connected to the second pulsator to drive the first pulsator and the second pulsator respectively Operating in at least one mode from one operating mode to the fourth operating mode, when the pulsator washing machine is in the spin mode, one of the first rotor and the second rotor is connected to the first pulsator, the second pulsator and the inner tub In order to drive the first pulsator and the second pulsator to rotate synchronously with the inner barrel.

Although the above-mentioned prior art proposes a control method of the pulsator washing machine, and proposes a technical solution for alternately rotating the front and back rotation of the pulsator, there are two shortcomings. The clothes are worn, but at the same time, because the water flow has been inactive in this state, the washing effect of the water flow on the clothes is insufficient, resulting in a low degree of washing. Secondly, an electric drain valve needs to be added for simultaneous washing in the same direction to control drainage. The scheme structure is complex and the cost is high.

Therefore, it is necessary to improve the shortcomings and defects of the prior art, to provide a washing machine, by setting two different washing programs, the second washing program compared with the first washing program, extending the pulsator forward and reverse single The time of the second rotation reduces the wear on delicate clothes, and avoids damage to the clothes due to frequent forward and reverse rotation of the pulsator, so that the washing machine can normally wash delicate clothes such as cashmere and wool.

In view of this, the present invention is specifically proposed.

Summary of the invention

The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art, and to provide a washing machine that can overcome the above problems or at least partially solve the above problems.

In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: a washing machine, including

Inner bucket to hold clothes;

Motors that provide washing power for washing machines;

Set in the inner barrel, the pulsator rotating alternately forward and reverse by the motor;

Also includes at least two washing procedures;

Among them, in the second washing program, the time of the single forward rotation of the pulsator is greater than the time of the single forward rotation of the pulsator in the first washing program, and / or The time is longer than the time of the single reverse rotation of the pulsator in the first washing program. The second washing program avoids the hedging of the water flow caused by the sudden reverse operation, which leads to the inner bucket through the setting of lower speed and longer steering time. The washing liquid in is in an inactive state, which affects the washing effect of the water flow on the clothes.

At the same time, the forward rotation speed of the pulsator in the second washing program is less than the forward rotation speed of the pulsator in the first washing program, and / or the reverse rotation speed of the pulsator in the second washing program is less than the first washing program The speed of the reverse rotation of the pulsator in the program. The second washing program uses a lower speed and a longer steering time to avoid the water flow hedging caused by the sudden reverse operation, which causes the washing liquid in the inner tub to be inactive. State, which affects the washing effect of water flow on clothing;

Further, in the second washing procedure, the time for the single forward rotation of the pulsator and / or the time for the single reverse rotation of the pulsator are greater than 5s;

In one embodiment, the time for a single forward rotation of the pulsator and / or the rotation time for a single reverse rotation of the pulsator do not exceed 2 min;

In another embodiment, in the second washing program, the speed of the forward rotation of the pulsator and / or the speed of the reverse rotation of the pulsator are 15 rpm to 50 rpm.

Further, the

The stopping time during the positive and negative commutation of the pulsator in the second washing program is greater than the stopping time during the positive and negative commutation of the pulsator in the first washing program;

In one embodiment, in the second washing procedure, during the forward and reverse commutation of the pulsator, the stop time is greater than 5s.

In addition, the

The washing machine is configured so that the motor drives the inner tub and the pulsator to rotate in opposite directions;

In the second washing program, the time of the single forward rotation of the inner tub is greater than the time of the single forward rotation of the inner tub in the first washing program, and / or, in the second washing program, the time of the single reverse rotation of the inner tub is greater than the first The time for a single reverse rotation of the inner tub during the washing procedure;

In one embodiment, the time for the single forward rotation and / or the single reverse rotation of the inner tub in the second washing program is greater than 5s;

In one embodiment, the time for a single forward rotation and / or a single reverse rotation of the inner tub in the second washing program does not exceed 2 min.

Further, in the second washing program, the speed of the inner tub forward rotation is less than the speed of the inner tub in the first washing program, and / or, the speed of the inner tub reverse rotation in the second washing program is less than the inner tub in the first washing program. Reverse rotation speed;

In one embodiment, the speed of the forward rotation of the inner tub and / or the reverse rotation of the inner tub in the second washing program is 5 rpm to 20 rpm.

Furthermore, in the second washing program, the rotation speed of the inner tub is lower than the rotation speed of the pulsator.

Still further, the

In the second washing procedure, the stopping time during the forward and reverse commutation of the inner tub is greater than the stopping time during the forward and reverse commutation of the inner tub in the first washing program;

In one embodiment, in the second washing procedure, during the forward and reverse commutation of the inner tub, the stop time is greater than 5s.

In addition, the washing machine is configured such that during the washing process, the motor drives the pulsator to rotate alternately in forward and reverse directions, and at the same time the inner tub is in a free state, and the inner tub is driven to inertia by water flow.

In addition, the washing machine is configured such that during the washing process, the motor drives the pulsator to rotate alternately in forward and reverse directions, and at the same time, the inner tub and the pulsator rotate in the same direction at a differential speed.

Moreover, the

The wear resistance of the clothes washed in the second washing program of the washing machine is weaker than the wear resistance of the clothes washed in the first washing program;

In one embodiment, the laundry material washed in the second washing program includes cashmere, and / or wool fabric.

The forward and reverse single rotation in the rotation process of the pulsator of the present invention refers to one forward rotation and one reverse rotation in the rotation period composed of the forward rotation, stop and reverse rotation of the pulsator.

The forward and reverse single rotation during the rotation of the inner barrel of the present invention refers to one forward rotation and one reverse rotation in the rotation period composed of the forward rotation, stop and reverse rotation of the inner barrel.

After adopting the above technical solutions, the present invention has the following beneficial effects compared with the prior art: the present invention extends two forward and reverse directions of the pulsator by setting two different washing programs, and the second washing program compared with the first washing program The time of single rotation reduces the wear on delicate clothes and avoids damage to the clothes due to frequent forward and reverse rotation of the pulsator, so that the washing machine can normally wash delicate clothes such as cashmere and wool fabrics. The second washing program passes the lower speed and needs The setting of longer steering time avoids the water flow hedging caused by the sudden reverse operation, which in turn causes the washing liquid in the inner tub to be inactive, which affects the washing effect of the water flow on the clothes.

The specific implementation of the present invention will be described in further detail below with reference to the drawings.

detailed description

To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be described clearly and completely in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention , But not to limit the scope of the invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, just to facilitate the description of the present invention and simplify the description, rather than to indicate or imply that the device or element referred to must have a specific orientation, a specific orientation The construction and operation cannot be understood as a limitation of the present invention.

In the description of the present invention, it should be noted that, unless otherwise clearly specified and defined, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable Connected, or connected integrally; either mechanically or electrically; directly or indirectly through an intermediary. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

In the ordinary washing machine, a drain motor is generally installed at the bottom of the outer tub, and the washing motor dehydration state conversion and the drain valve of the reducer are simultaneously controlled by the drain motor. The existing solution is to solve the problem of frequent wear of the pulsator (or the pulsator and the inner barrel) on the clothes, which is usually caused by adding an electric drain valve at the drain to control the drain. Thereby, the original drainage motor can be specifically controlled to switch the washing and dewatering state of the reducer. Through program control, in the washing stage, the washing machine reducer is in the dehydration state through the action of the drain motor, so that the inner tub and the pulsator can achieve simultaneous and simultaneous operation of washing, reducing laundry wear.

In view of the above-mentioned technical problems, the present invention provides a washing machine. By setting two different washing programs, the second washing program extends the time of the single rotation of the pulsator in forward and reverse directions compared with the first washing program. The wear of the delicate clothes is reduced, and the damage caused to the clothes due to the frequent forward and reverse rotation of the pulsator is avoided, so that the washing machine can normally wash the delicate clothes such as cashmere and wool fabrics. The specific technical solution is as follows.

Example one

A washing machine described in this embodiment includes an inner tub containing clothes; a motor that provides washing power to the washing machine; a pulsator that is installed in the inner tub and driven by the motor to rotate alternately in forward and reverse directions; The rotation direction of the switching motor drives the washing liquid and clothes to frequently switch the rotation direction in the inner tub to achieve washing of the clothes, but because the existing solution is to solve the frequent forward and reverse operation of the pulsator (or pulsator and inner tub), For the problem of large wear of clothes, it is generally through adding an electric drain valve at the drain to specifically control the drain. Thereby, the original drainage motor can be specifically controlled to switch the washing and dewatering state of the reducer. However, when washing relatively delicate or poorly abrasion-resistant clothes, frequent switching of the operation direction will cause damage to the clothes. Therefore, the present invention controls the washing machine in the washing stage by the action of the drain motor during the washing stage through the program control. It is in the dehydration state, so that the inner tub and the pulsator can achieve synchronous and same-direction running washing, reducing laundry wear.

Specifically, the present invention provides at least two washing programs in the washing system of the washing machine, namely the first washing program and the second washing program, wherein, in the second washing program, the time for the single positive rotation of the pulsator Greater than the time of the single forward rotation of the pulsator in the first washing program, and / or the time of the single reverse rotation of the pulsator in the second washing program is greater than the time of the single reverse rotation of the pulsator in the first washing program, The second washing program avoids the water flow hedging caused by the sudden reverse operation through the setting of lower speed and longer steering time, which in turn causes the washing liquid in the inner tub to be inactive, which affects the washing effect of the water flow on the laundry. The rotation time in the second washing program is longer than that in the first washing program, which also makes the laundry washed more thoroughly.

In the present invention, by setting two different washing programs, compared with the first washing program, the second washing program prolongs the time of the single rotation of the pulsator in forward and reverse directions, reduces the wear on delicate clothes, and avoids the pulsator. Frequent forward and reverse rotations cause damage to the clothes, allowing the washing machine to wash cashmere, woolen fabrics and other delicate clothes normally.

Example 2

This embodiment is a further limitation of the first embodiment described above, the forward rotation speed of the pulsator in the second washing program described in this embodiment is less than the forward rotation speed of the pulsator in the first washing program, and / or, the second washing The speed of the reverse rotation of the pulsator in the program is less than the speed of the reverse rotation of the pulsator in the first washing program. The second washing program avoids the sudden reverse operation through the setting of lower speed and longer steering time. The water flow is flushed, which causes the washing liquid in the inner tub to be inactive, which affects the effect of the water flow on the laundry.

Example Three

This embodiment is a further limitation of the above Embodiment 1 or Embodiment 2. In the second washing procedure described in this embodiment, the time for a single forward rotation of the pulsator and / or the time for a single reverse rotation of the pulsator are greater than 5s, set the rotation time longer, the purpose is to provide the laundry with a sufficiently long washing time, to avoid the situation of incomplete washing caused by too long pauses and short washing time, but also to improve the laundry when the speed is reduced Washing effect.

In this embodiment, it is preferable that the time for controlling the forward rotation of the pulsator and / or the rotation time for the reverse rotation of the pulsator in the second washing program not exceed 2 min, to avoid wear on delicate clothes caused by excessively long rotation time.

Example 4

This embodiment is a further limitation of any of the above embodiments 1 to 3, in the second washing program of this embodiment, the speed of the pulsator's forward rotation and / or the speed of the pulsator's reverse rotation are 15rpm ～ 50rpm, in the conventional washing machine, the positive and negative rotations are alternated. The pulsator speed is generally about 120rpm ~ 200rpm, which is the speed of the pulsator in the first washing program. The high rotation speed makes the washing of the laundry more thorough and can improve the The degree of cleanliness and washing effect, but due to the high speed, it also brings forward the positive and negative alternating rotation, the force that the laundry bears is greater, and it is affected by greater wear during the commutation process. The clothes with poor abrasion resistance are damaged during the frequent change of the rotation direction, and the present invention ensures the durability by setting the rotation speed in the second washing program to be lower than the rotation speed of the conventional first washing program Poorly abraded clothes are subject to minimal wear if they are thoroughly washed.

Example 5

This embodiment is a further limitation of any of the above embodiments one to four. The second washing program described in this embodiment stops during the forward and reverse commutation of the pulsator longer than the pulsator in the first washing program The stop time during the forward and reverse commutation process, wherein, during the second washing process, during the forward and reverse commutation process of the pulsator, the stop time is greater than 5s. In the washing program of the conventional washing machine, the positive and negative directions are alternately performed. Generally, the motor stop time is within 0.3s to 3s. The shorter pause time cannot reduce the rotation speed of the washing liquid and the laundry, and the washing liquid and the laundry are rotating at a high speed. In the case of a reverse rotation, the motor will inevitably cause serious wear on the clothes.

Example Six

This embodiment is a further limitation of any of the above embodiments one to five. The washing machine in this embodiment is configured such that the motor drives the inner tub and the pulsator to rotate in opposite directions during the washing process; the inner tub in the second washing program The time of the second forward rotation is greater than the time of the single forward rotation of the inner tub in the first washing program, and / or the time of the single reverse rotation of the inner tub in the second washing program is greater than the single reverse rotation of the inner tub in the first washing program time.

Further, the time for the single forward or reverse rotation of the inner tub in the second washing program is greater than 5 s, and / or, the time for the single forward or reverse rotation of the inner tub in the second washing program does not exceed 2 min.

Generally, the motor rotation stop time is within 0.3s to 3s. The short pause time cannot reduce the rotation speed of the washing liquid and the laundry. When the washing liquid and the laundry are rotating at a high speed, the motor reverses, which is bound to bring To serious wear and tear.

Example 7

This embodiment is a further limitation of the sixth embodiment described above. In the second washing program described in this embodiment, the speed of the inner tub forward rotation is less than the speed of the inner tub in the first washing program, and / or, the second washing program The reverse rotation speed of the inner tub is smaller than the reverse rotation speed of the inner tub in the first washing program, and the forward or reverse rotation speed of the inner tub in the second washing program is 5-20 rpm. In the second washing procedure, the rotation speed of the inner tub is lower than the rotation speed of the pulsator. In the conventional washing machine, the positive and negative rotations are carried out alternately. The rotating speed of the pulsator is generally about 120-200 rpm. If it is a dual drive, the rotating speed of the inner drum is about 50-90 rpm. Although the rotating speed of the pulsator and the inner drum is high, the washing of the clothes is more thorough. It can improve the cleanliness and washing effect of the clothes, but due to the high speed, it also brings the positive and negative alternating rotation and commutation, the force on the laundry is greater, and it is affected by greater wear during the commutation process At this time, the clothes with poor abrasion resistance are damaged during the frequent change of the rotation direction, and the present invention precisely sets the rotation speed in the second washing program to be lower than the rotation speed of the conventional first washing program , To ensure that clothes with poor abrasion resistance are subject to minimum wear under the premise of thorough cleaning.

Example 8

This embodiment is a further limitation of the foregoing embodiment 7. In the second washing program described in this embodiment, the stopping time during the forward and reverse commutation of the inner tub is greater than the stopping time during the forward and reverse commutation of the inner tub in the first washing program; In the second washing procedure, during the positive and negative commutation of the pulsator, the stop time is greater than 5s.

Example 9

This embodiment is a further limitation of any of the above embodiments one to eighth. The washing machine in this embodiment is configured such that during the washing process, the motor drives the pulsator to rotate alternately in forward and reverse directions, while the inner tub is in a free state , Inertial rotation of the inner barrel is driven by the water flow.

Example 10

This embodiment is a further limitation of any of the above embodiments 1 to 9, the washing machine in this embodiment is configured such that during the washing process, the motor drives the pulsator to rotate alternately in forward and reverse directions, and at the same time the inner tub and the pulsator Differential rotation in the same direction.

Example 11

This embodiment is a further limitation of any of the above embodiments 1 to 10, and the wear resistance of the clothes washed in the second washing program of the washing machine in this embodiment is weaker than the clothes washed in the first washing program. Wear resistance, because the present invention sets the washing time and washing speed in the second washing program accordingly, no matter whether it is the reverse rotation of the inner tub and the pulsator, the same direction differential, or the inner tub is in a free state, In the second washing procedure, delicate or poorly abrasion-resistant clothes can be thoroughly washed, while also reducing the degree of abrasion and improving the user experience.

Example 12

This embodiment is a further limitation of the foregoing embodiment 11. The material of the laundry washed in the second washing procedure in this embodiment includes cashmere, and / or wool fabric.

The specification provided here explains a lot of specific details. However, it can be understood that the embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this description.

Similarly, it should be understood that in order to streamline the disclosure and help understand one or more of the various inventive aspects, in the above description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together into a single embodiment, Figure, or its description. However, the disclosed method should not be interpreted as reflecting the intention that the claimed invention requires more features than those explicitly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Therefore, the claims that follow the specific embodiment are hereby expressly incorporated into the specific embodiment, where each claim itself serves as a separate embodiment of the present invention.

Except that at least some of such features and / or processes or units are mutually exclusive, all features disclosed in this specification (including the accompanying claims, abstract and drawings) and any method so disclosed or All processes or units of equipment are combined. Unless expressly stated otherwise, each feature disclosed in this specification (including the accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose.

In addition, those skilled in the art can understand that although some of the embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present invention And form different embodiments. For example, in the following claims, any of the claimed embodiments can be used in any combination.

It should be noted that the above-mentioned embodiments illustrate the present invention rather than limit the present invention, and those skilled in the art can design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs between parentheses should not be constructed as limitations on the claims. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "one" before an element does not exclude the presence of multiple such elements. In the unit claims enumerating several devices, several of these devices may be embodied by the same hardware item. The use of the words first, second, and third does not indicate any order. These words can be interpreted as names.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention has been disclosed in the preferred embodiments as above, it is not intended to limit the present invention. Any technology familiar with this patent Personnel can use the technical content of the above tips to make some changes or modifications to equivalent embodiments without departing from the scope of the technical solution of the present invention, but any content that does not deviate from the technical solution of the present invention is based on the technology In essence, any simple modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the present invention.

Claims

A washing machine includes

Inner bucket to hold clothes;

Motors that provide washing power for washing machines;

Set in the inner barrel, the pulsator rotating alternately forward and reverse by the motor;

It is characterized in that it also includes at least two washing procedures;

Among them, in the second washing program, the time of the single forward rotation of the pulsator is greater than the time of the single forward rotation of the pulsator in the first washing program, and / or, the single reverse rotation of the pulsator in the second washing program The time is greater than the time of the single reverse rotation of the pulsator in the first washing program.
A washing machine according to claim 1, wherein the speed of the positive rotation of the pulsator in the second washing program is less than the speed of the positive rotation of the pulsator in the first washing program, and / or the second washing The reverse rotation speed of the pulsator in the program is less than the reverse rotation speed of the pulsator in the first washing program.
A washing machine according to claim 1 or 2, characterized in that: in the second washing program, the time for a single forward rotation of the pulsator and / or the time for a single reverse rotation of the pulsator are greater than 5s;

Preferably, the time for a single forward rotation of the pulsator and / or the rotation time for a single reverse rotation of the pulsator do not exceed 2 min;

And \ or, in the second washing procedure, the speed of the pulsator's forward rotation and / or the speed of the pulsator's reverse rotation are 15rpm-50rpm.
A washing machine according to any one of claims 1-3, characterized in that:

The stopping time during the positive and negative commutation of the pulsator in the second washing program is greater than the stopping time during the positive and negative commutation of the pulsator in the first washing program;

Preferably, in the second washing procedure, during the forward and reverse commutation of the pulsator, the stop time is greater than 5s.
A washing machine according to any one of claims 1 to 4, characterized in that:

The washing machine is configured so that the motor drives the inner tub and the pulsator to rotate in opposite directions;

The time for a single forward rotation of the inner tub in the second washing program is greater than the time for a single forward rotation of the inner tub in the first washing program, and / or, the time for a single reverse rotation of the inner tub in the second washing program is greater than the first The time of single reverse rotation of the inner barrel;

Preferably, the time for the single forward rotation and / or the single reverse rotation of the inner tub in the second washing procedure is greater than 5s;

Also preferably, the time for the single forward rotation and / or the single reverse rotation of the inner tub in the second washing program does not exceed 2 min.
A washing machine according to claim 5, characterized in that:

In the second washing program, the forward rotation speed of the inner tub is less than the forward rotation speed of the inner tub in the first washing program, and / or, the reverse rotation speed of the inner tub is less than the reverse rotation of the inner tub in the first washing program speed;

Preferably, the speed of the forward rotation of the inner tub and / or the reverse rotation of the inner tub in the second washing program is 5 rpm to 20 rpm.
A washing machine according to claim 5 or 6, wherein in the second washing program, the rotating speed of the inner tub is lower than the rotating speed of the pulsator.
A washing machine according to claim 5, characterized in that:

The time for stopping in the forward and reverse commutation process of the inner tub in the second washing program is greater than the time for stopping in the forward and reverse commutation process of the inner tub in the first washing program;

Preferably, in the second washing procedure, during the forward and reverse commutation of the inner tub, the stop time is greater than 5s.
A washing machine according to any one of claims 1 to 4, characterized in that:

The washing machine is configured so that during the washing process, the motor drives the pulsator to rotate alternately in forward and reverse directions;

At the same time, the inner barrel is in a free state, and the inner barrel is inertially rotated by the water flow, and / or at the same time, the inner barrel and the pulsator rotate at the same direction at a differential speed.
A washing machine according to any one of claims 1-9, characterized in that:

The wear resistance of the clothes washed in the second washing program of the washing machine is weaker than the wear resistance of the clothes washed in the first washing program;

Preferably, the laundry material washed in the second washing program includes cashmere, and / or wool fabric.