WO2020015303A1

WO2020015303A1 - Stator installation structure and washing machine

Info

Publication number: WO2020015303A1
Application number: PCT/CN2018/122879
Authority: WO
Inventors: 黄海良; 许金鑫; 唐林; 刘丽刚; 蔡易霖
Original assignee: 珠海格力电器股份有限公司; 珠海凯邦电机制造有限公司
Priority date: 2018-07-16
Filing date: 2018-12-21
Publication date: 2020-01-23
Also published as: CN108642804B; CN108642804A

Abstract

Provided in the present application are a stator installation structure and a washing machine. The stator installation structure comprises a motor stator (1) and a drum support (2), wherein the motor stator (1) has an installation leg (3), and a shock-absorbing pad (4) is disposed between the installation leg (3) and the drum support (2). The stator installation structure of the present application can reduce the vibration noise transferred from a motor stator to a drum during an operation process of a washing machine.

Description

Stator mounting structure and washing machine

Related applications

This application claims priority from a Chinese patent application filed on July 16, 2018 with an application number of 201810777983.8, entitled "Stator mounting structure and washing machine", which is incorporated herein by reference in its entirety.

Technical field

The present application belongs to the technical field of washing machines, and particularly relates to a stator mounting structure and a washing machine.

Background technique

With the continuous development of society, washing machines have become an indispensable household appliance for every household. With the continuous improvement of living standards, people's requirements for washing machines are no longer simply clean, energy saving and emission reduction. The appearance and use experience of washing machines are also affecting people's consumption trends. For the moment, whether it is a belt drive or a direct drive washing machine, vibration noise is unavoidable. The vibration noise generated when the washing machine is running is inevitable, so reducing the vibration noise has been the research trend of the industry.

In the traditional installation method of the stator of the washing machine, a circular steel sleeve is placed in the through hole of the stator mounting foot and then directly mounted on the bracket of the drum. When the motor is running, the stator vibration is directly transmitted to the drum, which easily generates resonance sound. The lack of positioning devices for the motor mounting feet can easily lead to eccentric motor installation and hidden dangers. If the positioning is performed by increasing the number of stator mounting positioning feet, it will cause problems of complex structure and increased cost.

Summary of the invention

Therefore, the technical problem to be solved in the present application is to provide a stator mounting structure and a washing machine, which can reduce the vibration noise transmitted from the motor stator to the drum during the operation of the washing machine.

In order to solve the above problems, the present application provides a stator mounting structure including a motor stator and a drum bracket. The motor stator has mounting feet, and a cushion is provided between the mounting feet and the drum bracket.

In one embodiment, the cushion is embedded in the mounting foot.

In one embodiment, the mounting leg has a mounting through hole, and a limiting groove is provided on an outer peripheral side of the mounting through hole. The shape of the damping pad matches the limiting groove, and the damping pad is embedded in the limiting groove.

In one embodiment, the depth of the limiting groove is smaller than the thickness of the cushion.

In one of the embodiments, the mounting foot has a mounting through hole, an annular groove is provided on an outer peripheral side of the mounting through hole, and an annular protrusion matching the annular groove is provided on the damping pad, and the annular protrusion snaps into the annular recess. Inside the slot.

In one embodiment, the depth of the annular groove is less than or equal to 1/3 of the thickness of the mounting foot.

In one embodiment, a positioning structure is provided on a side of the damping pad facing the drum bracket.

In one embodiment, the positioning structure includes a positioning protrusion disposed on a side of the shock absorbing pad facing the drum bracket, and the drum bracket is provided with a positioning groove matching the positioning protrusion.

In one embodiment, the positioning protrusion is cylindrical, tapered, or annular.

In one embodiment, the shape of the damping pad is triangular, stripe or diamond.

In one embodiment, the mounting foot has a mounting through hole, and a protective sleeve is sleeved inside the mounting through hole, and the axial length of the protective sleeve is less than the sum of the lengths of the cushion and the mounting foot.

In one embodiment, the cushion is rubber.

According to another aspect of the present application, there is provided a washing machine including a stator mounting structure, and the stator mounting structure is the above-mentioned stator mounting structure.

The stator mounting structure provided in the present application includes a motor stator and a roller bracket. The motor stator has mounting feet, and a cushion is provided between the mounting feet and the roller bracket. By providing a damping pad between the motor stator and the roller bracket, the rigid contact between the motor stator and the roller bracket in the prior art can be made into an elastic contact, thereby reducing the vibration transmission between the motor stator and the roller, reducing Noise generated during small washing machine operation.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a sectional structural schematic diagram of a stator mounting structure according to an embodiment of the present application; FIG.

FIG. 2 is a schematic enlarged structure diagram at Q in FIG. 1; FIG.

FIG. 3 is a schematic perspective structural view of a motor stator of a stator mounting structure according to an embodiment of the present application; FIG.

4 is a schematic structural diagram of a mounting leg of a motor stator of a stator mounting structure according to an embodiment of the present application;

5 is a first isometric view of a damping pad of a stator mounting structure according to an embodiment of the present application;

6 is a second isometric view of a damping pad of a stator mounting structure according to an embodiment of the present application;

FIG. 7 is a matching structural diagram of a damping pad of a stator mounting structure and a motor stator according to an embodiment of the present application; FIG.

FIG. 8 is a partial structural diagram of a roller bracket of a stator mounting structure according to an embodiment of the present application.

The reference numerals are represented as:

1. Motor stator; 2. Drum bracket; 3. Mounting feet; 4. Damping pads; 5. Mounting through holes; 6. Limiting slots; 7. Ring grooves; 8. Ring protrusions; 9. Positioning protrusions ; 10, positioning groove; 11, protective sleeve; 12, roller.

detailed description

1 to FIG. 8 in combination. According to the embodiment of the present application, the stator mounting structure includes a motor stator 1 and a roller bracket 2. The motor stator 1 has a mounting leg 3, and a reduction pad is provided between the mounting leg 3 and the roller bracket 2. Shock pad 4.

By providing a damping pad 4 between the motor stator 1 and the drum bracket 2, the rigid contact between the mounting leg 3 of the motor stator 1 and the drum bracket 2 in the prior art can be made into an elastic contact, thereby reducing the motor stator. The vibration transmission between 1 and the drum 12 avoids the resonance sound and reduces the noise generated during the operation of the washing machine.

The damping pad 4 needs to be spaced apart from the mounting feet 3 and the roller bracket 2 so that the forces of the mounting feet 3 and the roller bracket 2 can be received by the damping pad 4, and then reduced by the damping effect of the damping pad 4 The vibration effect transmitted from the motor stator 1 to the drum bracket 2 improves the shock absorption effect.

Optionally, the damping pad 4 is embedded in the mounting foot 3, and the installation position of the damping pad 4 on the mounting foot 3 can be limited, thereby preventing the damping pad 4 from being opposed to the mounting foot 3 during the operation of the washing machine. Displacement occurs to improve the stability of the structure of the damping pad 4 and ensure the damping function of the damping pad 4. The shock absorbing pad 4 may also be fixed to the mounting leg 3 by other methods, for example, fixedly installed on the mounting leg 3 by means of adhesion or the like.

The mounting leg 3 is provided with a mounting through hole 5. A limiting slot 6 is provided on the outer peripheral side of the mounting through hole 5. The shape of the damping pad 4 matches the limiting slot 6, and the damping pad 4 is embedded in the limiting slot 6. The damping pad 4 is embedded in the limiting groove 6 as a whole. The limiting groove 6 can form a limiting effect on the damping pad 4 as a whole, so that when the damping pad 4 is squeezed, the whole is squeezed, and It is not only the local compression effect, the vibration force is more dispersed, the vibration effect can be greater, and the shock absorption effect is better. Of course, the damping pad 4 may also only partially cooperate with the limiting groove 6 to achieve limited positioning.

By providing the limiting grooves 6, the limiting grooves 6 can be made to cooperate with the shock absorbing pad 4 to play a role of fixing the shock absorbing pad 4. The setting of the limiting groove 6 should use the mounting feet 3 as much as possible to increase the contact surface between the damping pad 4 and the roller bracket 2 so as to increase the stability of the motor installation and enhance the effect of damping and reducing noise.

Optionally, the depth of the limiting groove 6 is smaller than the thickness of the shock-absorbing pad 4, so that the shock-absorbing pad 4 can protrude from the side of the mounting foot 3 facing the drum bracket 2, so that the shock-absorbing pad 4 can be spaced from the mounting foot 3. Between the mounting leg 3 and the roller bracket 2, it is avoided that the mounting leg 3 directly contacts the roller bracket 2 to form a rigid contact, and the shock absorbing effect between the mounting leg 3 and the roller bracket 2 is ensured.

Optionally, the mounting leg 3 is provided with a mounting through hole 5, an annular groove 7 is provided on the outer peripheral side of the mounting through hole 5, and a ring-shaped protrusion 8 matching the ring-shaped groove 7 is provided on the shock-absorbing pad 4, and the ring-shaped protrusion The jack 8 snaps into the annular groove 7. The annular groove 7 can play a role of fixing and supporting the damping pad 4, so that after the screws are installed, the movement of the damping pad 4 is limited by the screws, which more effectively prevents the damping pad 4 from occurring in the working process. Displacement and lose effective shock absorption. When the annular protrusion 8 and the annular groove 7 cooperate with each other to limit the structure and the structure through which the restriction groove 6 and the damping pad 4 restrict the structure, the damping pad 4 can be installed on the mounting leg 3 The installation with the roller bracket 2 plays a more effective positioning role, and can more effectively ensure the accuracy of the installation position of the shock absorption pad 4, so that the installation of the motor stator 1 can also play an effective role to a certain extent. The positioning function plays a role in positioning the stator 1 of the motor.

Optionally, the depth of the annular groove 7 is less than or equal to 1/3 of the thickness of the mounting foot 3, which can prevent the excessive depth of the annular groove 7 from adversely affecting the structural strength of the mounting foot 3 and ensure the structural strength of the mounting foot 3. It can also effectively prevent the damping pad 4 from falling off after installation, and improve the stability of the structure of the damping pad 4 installation.

A positioning structure is provided on a side of the damping pad 4 facing the drum bracket 2. The positioning structure can locate the position between the damping pad 4 and the roller bracket 2. The damping pad 4 is provided with a through hole for the screw to pass through. The damping pad 4 can pass through the hole and the positioning structure and the roller bracket. The precise positioning is formed between the two, which can play the role of positioning the motor stator 1, avoid the eccentric phenomenon when the motor stator 1 is installed, solve the problem of the motor stator 1 installation offset, and facilitate the motor installation.

In this embodiment, the positioning structure includes a positioning protrusion 9 provided on a side of the shock absorbing pad 4 facing the roller bracket 2, and a positioning groove 10 matching the positioning protrusion 9 is provided on the roller bracket 2. The positioning protrusion 9 is snapped into the positioning groove 10, so that the installation and positioning between the shock absorbing pad 4 and the roller bracket 2 can be conveniently implemented.

The positioning protrusion 9 is cylindrical, tapered, or ring-shaped.

The shape of the damping pad 4 is a triangle, a bar, or a diamond.

The mounting leg 3 is provided with a mounting through hole 5, and a protective sleeve 11 is sleeved inside the mounting through hole 5. The axial length of the protective sleeve 11 is less than the sum of the lengths of the cushion 4 and the mounting leg 3, so that the cushion 4 is reserved. Deformation space to achieve effective shock absorption.

In this embodiment, an end of the annular protrusion 8 of the shock absorbing pad 4 near the drum bracket 2 is provided with a radially protruding annular flange, and the annular flange stops at the end of the protective sleeve 11 so that A space is formed between 11 and the roller bracket 2 to avoid direct contact between the protective sleeve 11 and the roller bracket 2 so that the protective sleeve 11 and the roller bracket 2 can also form an effective shock absorption effect, so that the mounting foot 3 and the roller bracket 2 can be formed. 2 can form a comprehensive and effective shock absorption effect without dead angles, further improve the shock absorption effect of the stator mounting structure, and improve the shock absorption effect during the working process of the washing machine. The protective sleeve 11 is, for example, a steel sleeve.

The damping pad 4 may be rubber. When the motor is running, when the vibration of the motor stator 1 is transmitted to the rubber pad, the problem of resonance between the motor stator 1 and the drum 12 will be reduced due to the contraction of the rubber. The shock-absorbing pad 4 can also be replaced by other materials with similar effects.

According to the embodiment of the present application, the washing machine includes a stator mounting structure, and the stator mounting structure is the above-mentioned stator mounting structure.

Those skilled in the art can easily understand that the above-mentioned advantageous manners can be freely combined and superimposed on the premise of no conflict.

The above are only preferred embodiments of this application, and are not intended to limit this application. Any modification, equivalent replacement, and improvement made within the spirit and principles of this application shall be included in the scope of protection of this application. Inside. The above are only the preferred embodiments of the present application. It should be noted that, for those of ordinary skill in the art, without departing from the technical principles of the present application, several improvements and modifications can be made. These improvements and modifications should also be made. It is regarded as the protection scope of this application.

Claims

A stator mounting structure is characterized in that it includes a motor stator (1) and a drum bracket (2), the motor stator (1) has mounting feet (3), the mounting feet (3) and the drum bracket ( 2) A cushion (4) is provided between the cushions.
The stator mounting structure according to claim 1, wherein the damping pad (4) is embedded in the mounting leg (3).
The stator mounting structure according to claim 2, characterized in that the mounting leg (3) has a mounting through hole (5), and a limiting slot (6) is provided on the outer peripheral side of the mounting through hole (5), The shape of the damping pad (4) matches the limit groove (6), and the damping pad (4) is embedded in the limit groove (6).
The stator mounting structure according to claim 3, wherein a depth of the limiting groove (6) is smaller than a thickness of the damping pad (4).
The stator mounting structure according to claim 2, wherein the mounting leg (3) has a mounting through hole (5), and an annular groove (7) is provided on an outer peripheral side of the mounting through hole (5). An annular protrusion (8) matching the annular groove (7) is provided on the damping pad (4), and the annular protrusion (8) is snapped into the annular groove (7) .
The stator mounting structure according to claim 5, wherein the depth of the annular groove (7) is less than or equal to 1/3 of the thickness of the mounting leg (3).
The stator mounting structure according to any one of claims 2 to 6, wherein a positioning structure is provided on a side of the damping pad (4) facing the drum bracket (2).
The stator mounting structure according to claim 7, characterized in that the positioning structure comprises a positioning protrusion (9) provided on a side of the damping pad (4) facing the drum bracket (2), and The drum bracket (2) is provided with a positioning groove (10) matching the positioning protrusion (9).
The stator mounting structure according to claim 8, characterized in that the positioning protrusion (9) is cylindrical, tapered or annular.
The stator mounting structure according to any one of claims 1 to 6, wherein the shape of the damping pad (4) is a triangle, a bar, or a rhombus.
The stator mounting structure according to claim 1, wherein the mounting leg (3) has a mounting through hole (5), and the mounting through hole (5) is provided with a protective sleeve (11) inside, so that The axial length of the protective sleeve (11) is less than the sum of the lengths of the shock absorbing pad (4) and the mounting feet (3).
The stator mounting structure according to claim 1, wherein the shock absorbing pad (4) is rubber.
A washing machine includes a stator mounting structure, wherein the stator mounting structure is the stator mounting structure according to any one of claims 1 to 12.