WO2016045178A1

WO2016045178A1 - Washing machine inner drum and washing machine

Info

Publication number: WO2016045178A1
Application number: PCT/CN2014/091305
Authority: WO
Inventors: 吕佩师; 伊藤道明; 迟宗锐; 肖磊; 李全德; 栾厚利; 陈志�
Original assignee: 青岛海尔滚筒洗衣机有限公司
Priority date: 2014-09-28
Filing date: 2014-11-17
Publication date: 2016-03-31
Also published as: EP3199687A1; EP3199687B1; US20170226681A1; CN105525484B; CN105525484A; KR20170075735A; JP2017529220A; EP3199687A4

Abstract

A washing machine inner drum and a washing machine. The inner drum comprises a hollow cylinder-shaped inner drum body (1), at least one counterweight body (2) being arranged fixedly on the inner drum body (1); when the inner drum body (1) rotates, the counterweight body (2) rotates therewith, and the centre of mass of the counterweight body (2) is positioned on the axis of the inner drum (1). The washing machine comprises a shell and an outer drum, the present washing machine inner drum being arranged within said outer drum. The washing machine inner drum has good damping effects, and when vibration occurs, functions quickly and reduces the vibration. The outer drum and the outer shell of the washing machine do not require other counterweights, damping effects are good, the structure is simple and compact, production efficiency is high, costs are low, and the difficulty of maintenance is reduced.

Description

Inner tube and washing machine for washing machine

This patent application claims priority from the Chinese Patent Application No. 201410510619.7 filed on Sep. 28, 2014, the applicant is the Qingdao Haier Drum Washing Machine Co., Ltd., and the invention is entitled "The inner cylinder of the washing machine and the washing machine". The entire text is incorporated herein by reference.

Technical field

The present invention relates to an inner cylinder for a washing machine and a washing machine provided with the inner cylinder.

Background technique

The washing machine is a commonly used home appliance that uses the high-speed rotation of the inner cylinder to clean and dry the clothes. Although the inner cylinder itself is balanced with respect to its axis, the position of the laundry cannot be precisely controlled, so that the entire inner cylinder and the laundry are easily eccentric with respect to the inner cylinder axis. When the high-speed rotation is performed, the inner cylinder is prone to severe vibration, which in turn causes a strong vibration of the entire washing machine.

In order to alleviate such vibrations, existing washing machines need to be provided with a balance ring and a counterweight at the same time. The gimbal ring includes at least two cavities, wherein at least one of the cavities is filled with a liquid, and at least one of the cavities is filled with a spherical solid filler. Specifically, the solid filler is mixed with a lubricating grease and silicone oil, and the total amount of the solid filler is less than half of the total circumference of the cavity. The counterweight is placed on the outer cylinder or on the housing.

The defects of the existing structure are as follows: 1. The independent weight is set to make the overall structure of the washing machine not compact enough, and it is difficult to design, manufacture and repair after sale; 2. The damping effect of the balance ring is limited.

Summary of the invention

An object of the present invention is to provide an inner cylinder for a washing machine having a better shock absorbing effect.

Another object of the present invention is to provide a washing machine which is simpler and more compact in structure and more efficient in manufacturing.

To this end, in one aspect, the present invention employs the following technical solutions:

An inner cylinder for a washing machine, comprising a hollow cylindrical inner cylinder main body, wherein the inner cylinder main body is fixedly provided with at least one weight body; when the inner cylinder main body rotates, the weight body can rotate together with the same The center of mass of the weight is located on the axis of the inner cylinder body.

In particular, the weight body is fixedly disposed at an outer edge and/or an inner edge of the inner cylinder body.

In particular, each of the weight bodies includes at least two weights, at least two of which have a total center of mass on the axis; or each of the weights is a weight of a ring solid A ring, the center of mass of the weight ring being located on the axis.

In particular, the weight body is made of cement, concrete, cast iron and/or lead.

In particular, a protective casing is disposed outside the weight body.

Further, the protective casing comprises at least two chambers, at least two of which are arranged radially inward or outward with respect to the inner cylinder body or axially side by side.

In particular, the protective casing comprises at least two chambers, wherein at least one of the chambers is provided with the weight body, and at least one of the chambers is filled with a mixture of steel balls and silicone oil.

In particular, the protective casing comprises at least two chambers, wherein at least one of the chambers is provided with the weight body, and at least one of the chambers is filled with liquid.

In particular, the opening of the inner cylinder body is provided with a front end flange, and the weight body is fixedly disposed on an outer circumferential surface of the front end flange.

In another aspect, the invention employs the following technical solutions:

A washing machine includes a casing and an outer cylinder, and the inner cylinder for the washing machine described above is disposed in the outer cylinder.

The inner cylinder for the washing machine of the present invention is provided with a weight body symmetric about the axis of the inner cylinder body. When the inner cylinder body rotates, the center of mass (total centroid) of the weight body is located on the axis, and the damping effect is better; the balancing device and the weight device are Set into one, it can work faster and reduce vibration when vibration occurs.

The washing machine of the invention is provided with the above-mentioned inner cylinder for the washing machine, and the counterweight is added to the inner cylinder, and the outer cylinder and the outer casing do not need to be provided with other weights, the shock absorption effect is better, the structure is simpler and more compact, and the production efficiency is more efficient. High, low cost and reduced maintenance.

DRAWINGS

Figure 1 is a cross-sectional view showing an inner cylinder for a washing machine according to a preferred embodiment of the present invention;

Figure 2 is a cross-sectional view showing the structure of a protective case according to a preferred embodiment of the present invention;

3 is a cross-sectional view showing the structure of a protective case provided by a preferred embodiment 2 of the present invention.

The figure is marked as:

1. Inner cylinder body; 2. Counterweight; 3. Front flange; 4. Rear flange; 5. Protective shell; 6. Balance ring; 7. Mixture of steel ball and silicone oil; , dial water; 51, the first chamber; 52, the second chamber.

detailed description

The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

Preferred embodiment 1:

The preferred embodiment discloses an inner cylinder for a washing machine. As shown in FIGS. 1 and 2, the inner cylinder includes a hollow cylindrical inner cylinder main body 1, and front end flanges 3 and rear end flanges 4 are respectively provided at the front and rear openings of the inner cylinder main body 1. The outer peripheral surface of the front end flange 3 is provided with a hollow annular protective casing 5; the protective casing 5 includes two chambers, and the first chamber 51 and the second chamber 52 are radially and radially arranged with respect to the inner cylinder main body 1. A chamber 2 is provided with a weight body 2, and the other chamber is filled with a mixture 7 of steel balls and silicone oil. A balance ring 6 is disposed on the outer peripheral surface of the rear end flange 4, and the balance ring 6 is filled with a mixture 7 of steel balls and silicone oil. The water transfer blade 10 is provided in the inner cylinder main body 1, and the inner cylinder hexagonal frame 8 is provided on the outer side of the rear end flange 4. The weight body 2 is made of cement.

The inner cylinder replaces the original balance ring at the front end flange 3 with the weight body 2 and a mixture 7 of steel balls and silicone oil for balancing, and the weight body 2 is symmetrically disposed about the axis of the inner cylinder main body 1. When the inner cylinder main body 1 rotates, the weight body 2 can rotate together with the center of mass of the weight body 2 on the axis, and the shock absorbing effect at the time of high-speed rotation is better.

When the amount of eccentricity is small, the mixture 7 of steel balls and silicone oil can act faster to suppress the imbalance force generated by the eccentric load; when the eccentric load is large, the first thing to work is the mixture of steel balls and silicone oil, but with With the increase of the rotational speed and the increase of the centrifugal force generated by the eccentric load, the weight body 2 starts to function, so that the inner cylinder can be smoothly accelerated.

Preferred embodiment two:

The preferred embodiment discloses an inner cylinder for a washing machine, the structure of which is substantially the same as that of the first embodiment. The inner cylinder includes a hollow cylindrical inner cylinder body, and the inner cylinder main body is fixedly provided with at least one weight body; each weight body is symmetrically disposed about an axis of the inner cylinder main body, and the center of mass of the weight body is located on the axis when the inner cylinder main body rotates .

The difference is that the weight body is not limited to a one-piece weight ring, and may also be a split structure, that is, each weight body includes at least two weights, and the total centroid of at least two weights is located on the axis. The material of the weight body is not limited to cement, but may be concrete, cast iron and/or lead; the position of the weight body is not limited to the outer peripheral surface of the front flange of the inner cylinder main body, and may be disposed on the outer peripheral surface of the rear end flange and In other positions, when the inner cylinder body rotates at a high speed, the shock can be effectively damped; the chamber of the protective shell is not limited to two, and may be one or more; when the chamber is two or more, wherein A weight body is disposed in at least one of the chambers, and at least one of the chambers is filled with a mixture of liquid or steel balls and silicone oil.

The plurality of protective cases are not limited to being arranged in a radial direction, and may be arranged in an axial direction. As shown in FIG. 3, the first chamber 51 and the second chamber 52 are arranged side by side with respect to the inner cylinder main body 1 in the axial direction.

Preferred embodiment three:

The preferred embodiment discloses a drum washing machine comprising a casing, an outer cylinder and an inner cylinder for a washing machine according to a

preferred embodiment

1 or 2, wherein the inner cylinder body is provided with at least one weight body symmetric about an axis. When the inner cylinder body rotates, the center of mass of the weight body is located on the axis, which reduces the vibration of the inner cylinder main body, thereby enhancing the stability during use of the washing machine; no additional weight is required on the outer cylinder and the casing, and the structure is more compact. .

Preferred embodiment four:

The preferred embodiment discloses a washing machine having a structure substantially the same as that of the preferred embodiment 3. The washing machine includes a casing, an outer cylinder, and an inner cylinder for a washing machine according to a

preferred embodiment

1 or 2, and the inner cylinder main body is provided with at least one weight body symmetric about an axis.

The difference is that the washing machine is not limited to a drum washing machine, but may also be a pulsator washing machine or It's type of washing machine.

Claims

An inner cylinder for a washing machine, comprising a hollow cylindrical inner cylinder body (1), wherein the inner cylinder body (1) is fixedly provided with at least one weight body (2); when the inner cylinder body ( 1) The weight body (2) can rotate together with it when rotating, and the center of mass of the weight body (2) is located on the axis of the inner cylinder body (1).
The inner cylinder for a washing machine according to claim 1, wherein the weight body (2) is fixedly disposed at an outer edge and/or an inner edge of the inner cylinder main body (1).
The inner cylinder for a washing machine according to claim 1, wherein each of the weight bodies (2) comprises at least two weights, and a total center of mass of at least two of the weights is located on the axis; or,

Each of the weight bodies (2) is a weighted ring of an annular solid, the center of mass of which is located on the axis.
The inner cylinder for a washing machine according to any one of claims 1 to 3, characterized in that the weight body (2) is made of cement, concrete, cast iron and/or lead.
The inner cylinder for a washing machine according to any one of claims 1 to 3, characterized in that the outer side of the weight body (2) is provided with a protective casing (5).
The inner cylinder for a washing machine according to claim 5, wherein the protective casing (5) includes at least two chambers, at least two of which are radially opposite to the inner cylinder main body (1) Arranged inside or outside or axially side by side.
The inner cylinder for a washing machine according to claim 5, wherein the protective casing (5) comprises at least two chambers, wherein at least one of the chambers is provided with the weight body (2) and at least one chamber The interior is filled with a mixture of steel balls and silicone oil (7).
The inner cylinder for a washing machine according to claim 5, wherein the protective casing (5) comprises at least two chambers, wherein at least one of the chambers is provided with the weight body (2) and at least one chamber The room is filled with liquid.
The inner cylinder for a washing machine according to any one of claims 1 to 3, characterized in that the opening of the inner cylinder main body (1) is provided with a front end flange (3), and the weight body (2) is fixedly disposed at The outer peripheral surface of the front end flange (3).
A washing machine comprising a casing and an outer cylinder, wherein the outer cylinder is provided with the inner cylinder for a washing machine according to any one of claims 1 to 9.