CN109402958B

CN109402958B - Washing machine

Info

Publication number: CN109402958B
Application number: CN201710703203.0A
Authority: CN
Inventors: 杨飞; 卢金波; 程宝珍; 翁宗元; 刘凯
Original assignee: Qingdao Haier Drum Washing Machine Co Ltd
Current assignee: Qingdao Haier Drum Washing Machine Co Ltd
Priority date: 2017-08-16
Filing date: 2017-08-16
Publication date: 2022-05-27
Anticipated expiration: 2037-08-16
Also published as: CN109402958A

Abstract

The application relates to the technical field of clothes cleaning, in particular to a washing machine. The provided washing machine includes a cabinet having an accommodating space; a drive arrangement including a drive shaft; the outer cylinder is provided with two opposite surfaces along the thickness direction of the outer cylinder, the surface close to the box body is a first surface, the surface far away from the box body is a second surface, and the direction of the first surface pointing to the second surface is a first direction; the outer barrel has a recess recessed from the first surface in the first direction; the transmission assembly comprises a driven shaft, and the driven shaft is in transmission connection with the driving shaft; wherein: the outer cylinder and the driving device are both arranged in the accommodating space; at least a portion of the drive assembly is mounted within the recess. The washing machine that this application provided can increase the volume of inner tube under the certain condition of box volume.

Description

Washing machine

Technical Field

The application relates to the technical field of clothes cleaning, in particular to a washing machine.

Background

The washing machine brings great convenience to daily life of people and becomes an indispensable part in the life of people. Taking a non-direct-drive drum washing machine as an example, the non-direct-drive drum washing machine is provided with a motor to provide driving force, and the rear part of the drum can be provided with a belt pulley, a belt and other transmission components to transmit the driving force generated by the motor to the drum.

Generally, in order to ensure that the rear part (i.e. the bottom) of the drum has sufficient structural strength, a reinforcing structure, such as a reinforcing rib protruding from the surface of the rear part of the drum, is usually provided at the rear part of the drum, and the reinforcing rib occupies a part of the space between the washing machine cabinet and the drum; meanwhile, as the rear part of the drum is also required to reserve a certain installation space for installing the transmission assembly, the space between the box body of the washing machine and the drum is smaller, and the volume of the drum of the washing machine is smaller under the condition of certain volume of the box body.

Disclosure of Invention

The application provides a washing machine, under the condition that does not increase washing machine box volume, can increase the inner tube volume.

A first aspect of the present application provides a washing machine including a cabinet having a receiving space; a drive arrangement including a drive shaft; the outer barrel is provided with two opposite surfaces along the thickness direction of the outer barrel, the surface close to the box body is a first surface, the surface far away from the box body is a second surface, and the direction of the first surface pointing to the second surface is a first direction; the outer barrel has a recess recessed from the first surface in the first direction; the transmission assembly comprises a driven shaft, and the driven shaft is in transmission connection with the driving shaft;

wherein:

the outer cylinder and the driving device are both arranged in the accommodating space; at least a portion of the drive assembly is mounted within the recess.

Preferably, the washing machine further comprises a reinforcing shell disposed in the recess, the reinforcing shell being connected to the outer tub;

the reinforcing shell is provided with an inner wall facing away from the outer barrel, and the inner wall is sunken towards the outer barrel to form a mounting cavity for mounting at least one part of the transmission assembly.

Preferably, the transmission assembly further comprises a first bearing and a first bearing seat, the driven shaft is matched with the first bearing, and the first bearing seat is arranged on the inner wall.

Preferably, the washing machine provided by the present application further includes a protective shell connected to the reinforcing shell, and the mounting cavity is located between the reinforcing shell and the protective shell.

Preferably, the transmission assembly further comprises a second bearing and a second bearing seat, wherein the second bearing is matched with the driven shaft;

the protective housing has two sides opposite along a first direction, and the second bearing seat is installed on one side, close to the installation cavity, of the protective housing.

Preferably, the washing machine provided by the present application further comprises a fastening screw;

in the axial direction of the driven shaft, the driven shaft is in positioning fit with the inner ring of the second bearing through the fastening screw;

the protective housing has along the mounting hole that first direction runs through, fastening screw set up in the mounting hole, and follow first direction, the protective housing with the outer lane location fit of second bearing.

Preferably, the transmission assembly further comprises a belt pulley and a belt, and the belt pulley is in transmission connection with the driving shaft through the belt;

in the circumferential direction of the driven shaft, the belt pulley is in positioning fit with the driven shaft.

Preferably, the pulley is disposed between the first bearing and the second bearing in an axial direction of the driven wheel.

Preferably, the reinforcing shell further has a positioning protrusion which is in positioning fit with the outer cylinder in a direction perpendicular to the first direction.

Preferably, the positioning lug boss is a closed ring structure

The technical scheme provided by the application can achieve the following beneficial effects:

the application provides a washing machine is provided with the depressed part on the urceolus, and the depressed part is sunken to the opposite side from a side that is close to the box by urceolus bottom and forms, and at least some of drive assembly installs in the depressed part in the washing machine for drive assembly can occupy less space between box and the urceolus, and then under the certain circumstances of box volume, the volume of increase urceolus, in order to reach the volumetric purpose of increase washing machine inner tube.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

Fig. 1 is a schematic view of a partial structure of a washing machine according to an embodiment of the present disclosure;

fig. 2 is a sectional view of a partial structure of a washing machine according to an embodiment of the present application;

FIG. 3 is an enlarged schematic view of a portion of the structure of the washing machine shown in FIG. 2;

fig. 4 is an exploded schematic view of a partial structure of a washing machine according to an embodiment of the present disclosure.

Reference numerals:

1-a reinforcement shell;

10-inner wall;

11-a positioning boss;

2-a drive device;

3, an outer cylinder;

31-a first surface;

32-a second surface;

4-a transmission assembly;

40-a driven shaft;

41-a first bearing;

42-a first bearing seat;

43-a second bearing;

44-a second bearing block;

45-a belt pulley;

46-a belt;

5-protective shell;

6-fastening the screw.

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.

Detailed Description

The present application is described in further detail below with reference to specific embodiments and with reference to the attached drawings.

As shown in fig. 1 and 2, the embodiment of the present application provides a washing machine, which can increase the volume of an outer drum of the washing machine without increasing the volume of a box body, and further can increase the volume of an inner drum. The provided washing machine can comprise a box body, a driving device 2, an outer cylinder 3 and a transmission component 4, wherein the box body is provided with an accommodating space; the drive device 2 has a drive shaft; the outer cylinder 3 can be provided with two opposite surfaces along the thickness direction of the outer cylinder 3, and a concave part is arranged on the outer cylinder 3 and can be sunken from the surface, close to the box body, of the outer cylinder 3 to the surface, far away from the box body; the outer cylinder 3 and the drive means 2 may be disposed in a receiving space of the housing, and at least a portion of the transmission assembly 4 may be mounted in a recessed area provided in the outer cylinder 3.

Wherein, the box body can be made of plastic or metal material; the driving device 2 may be an electric motor, and an output shaft of the electric motor may be a driving shaft; the outer cylinder 3 may be formed of a plastic or the like by integral molding; for the drum washing machine, the first surface 31 and the second surface 32 may be an outer surface and an inner surface of the rear portion of the outer tub of the drum washing machine, the outer surface is the first surface 31, the inner surface is the second surface 32, a direction of the outer surface toward the inner surface is a first direction, the recess may be recessed from the outer surface along the first direction, and the recess may be directly formed outside the rear portion of the outer tub 3 in the forming process of the outer tub 3; the transmission assembly 4 can be a belt transmission part or a chain transmission part, the driven shaft 40 can be fixedly connected with the inner cylinder of the washing machine through a connecting part, and the driven shaft 40 can also be in transmission connection with the driving shaft through the transmission assembly 4, so that the driving shaft drives the inner cylinder of the washing machine to rotate for washing.

As described above, at least a part of the transmission assembly 4 is mounted in the recessed portion of the outer cylinder 3 recessed from the outer side of the outer cylinder 3 toward the inner side, which can reduce the mounting space between the casing and the outer cylinder 3 occupied by the transmission assembly; obviously, under the condition that the volume of the box body is not changed, the design can increase the volume of the outer cylinder 3, and further increase the volume of the inner cylinder of the washing machine.

In order to ensure sufficient structural strength of the outer tub 3 of the washing machine, as shown in fig. 3 and 4, the washing machine provided by the present application may further include a reinforcing case 1, the reinforcing case 1 may be disposed in a recess of the outer tub 3, and the reinforcing case 1 may be connected with the outer tub 3; the reinforcement shell 1 may have an inner wall 10 facing away from the outer cylinder 3, and the inner wall 10 may be recessed to the side of the outer cylinder 3 to form a mounting cavity which may be used to mount at least a portion of the transmission assembly 4.

Specifically, the reinforcing shell 1 may be a circular structure made of a hard material, for example, the reinforcing shell 1 may be formed by casting a metal material, and a person skilled in the art may determine the thickness of the reinforcing shell 1 according to actual conditions, so that the reinforcing shell 1 may improve the structural strength of the outer cylinder 3 provided with the recess. The reinforcing shell 1 can be connected to the outer cylinder 3 by a connecting piece such as a screw, so that at least one part of the reinforcing shell 1 can be attached to the outer cylinder 3; in the process of forming the reinforcing shell 1, the reinforcing shell 1 can be recessed towards one side of the reinforcing shell to form a mounting cavity, and the recessed part on the reinforcing shell 1 can be arranged in the recessed part of the outer cylinder 3, so that the attaching area of the reinforcing shell 1 and the outer cylinder 3 can be further improved. At least a portion of the drive assembly 4 may be disposed within a mounting cavity provided in the reinforcement shell 1.

Further, the transmission assembly 4 may further include a first bearing 41 and a first bearing seat 42, the driven shaft 40 may be engaged with the first bearing 41, and the first bearing seat 42 may be disposed on the inner wall 10 of the reinforcement shell 1.

Specifically, the first bearing 41 may be a deep groove ball bearing, the first bearing 41 may function to support the driven shaft 40, the first bearing seat 42 may be a cylindrical structure, and the first bearing seat 42 may be directly formed on the inner wall 10 of the reinforcement shell 1; when the first bearing 41 is attached, a predetermined force is applied to the first bearing 41 so that the outer race of the first bearing 41 can be fitted into the first bearing housing 42 having a cylindrical structure. The mounting of the first bearing housing 42 on the reinforcement case 1 can reduce the shaking of the outer tub 3 caused by the force generated by the first bearing 41 during the rotation, as compared to the mounting of the first bearing housing 42 on the outer tub 3 of the washing machine.

Further, in order to protect the transmission assembly 4 which is installed in the installation cavity of the reinforcing shell 1 and exposed, the washing machine provided by the application may further include a protective shell 5, the protective shell 5 may be connected with the reinforcing shell 1, and the installation cavity may be located between the reinforcing shell 1 and the protective shell 5.

Specifically, the protective shell 5 may also be circular, the protective shell 5 may also be made of a metal material, and the outer diameter of the protective shell 5 may be the same as the outer diameter of the circular reinforcing shell 1, so as to facilitate connection of the two. The protective case 5 may be of a flat structure, which is advantageous in reducing the installation space between the case and the rear portion of the outer tub 3 occupied by the protective case. A relatively closed installation cavity can be formed between the protective shell 5 and the reinforcing shell 1 so as to protect the transmission assembly 4 installed in the installation cavity; meanwhile, a sealing gasket can be arranged between the reinforcing shell 1 and the protective shell 5, so that the tightness between the reinforcing shell and the protective shell can be improved; meanwhile, the relatively closed installation cavity can reduce the noise generated in the working process of the transmission assembly 4, thereby improving the satisfaction degree of users.

Further, in order to improve the service life of the driven shaft 40 and other parts, and improve the safety performance of the washing machine, the transmission assembly 4 may further include a second bearing 43 and a second bearing seat 44, and the second bearing 43 may also cooperate with the driven shaft 40 to further support the driven shaft 40; the protective case 5 may have two sides opposite in the aforementioned first direction, and the second bearing housing 44 may be mounted on the protective case 5 on a side close to the mounting cavity.

Specifically, the second bearing 43 may also be a deep groove ball bearing, the second bearing seat 44 may also be a cylindrical structure, and accordingly, the second bearing 43 may be press-fitted in the second bearing seat 44, so that the outer ring of the second bearing 43 and the second bearing seat 44 are positioned and matched in the circumferential direction of the second bearing 43; accordingly, the cylindrical second bearing seat 44 can be directly formed on the inner side of the protective shell 5 during the manufacturing process of the protective shell 5, wherein the inner side refers to the side of the protective shell 5 opposite to the reinforcing shell 1; obviously, the second bearing 43 and the second bearing seat 44 are both installed in the installation cavity, and the protective shell 5 and the reinforcing shell 1 form a relatively closed installation cavity, so that the part of the noise generated by the second bearing 43 and the second bearing seat 44 in the working process is relatively less; meanwhile, each component in the installation cavity can be protected by the relatively closed environment, so that the service life of the components arranged in the installation cavity is prolonged.

Further, the washing machine provided by the present application may further include a fastening screw 6, and the driven shaft 40 may be in positioning fit with the inner ring of the second bearing 43 in the axial direction of the driven shaft 40 through the fastening screw 6; the protective case 5 may have a mounting hole penetrating in the first direction, and the fastening screw 6 may be mounted in the mounting hole; in the aforementioned first direction, the protective shell 5 can be in locating engagement with the outer race of the second bearing 43.

Specifically, a deep hole may be formed at an end of the driven shaft 40, and the fastening screw 6 is inserted into the deep hole, and accordingly, a corresponding structure may be provided on the inner ring of the second bearing 43, so that the fastening screw 6 may be fixedly connected to the inner ring of the second bearing 43, and the nut of the fastening screw 6 may also be fixedly connected to the inner ring of the second bearing 43 in a welding manner, so that the inner ring of the second bearing 43 may be in positioning fit with the driven shaft 40 in the axial direction of the driven shaft 40, and thereby the driven shaft 40 and the second bearing 43 may be prevented from moving relatively in the axial direction in the working process. In the manufacturing process of the protective shell 5, the mounting hole is directly formed in the protective shell 5, the position of the mounting hole can be matched with the positions of the second bearing 43 and the driven shaft 40, the diameter of the mounting hole can be smaller than that of the cylindrical second bearing seat 44, the second bearing 43 can be pressed into the second bearing seat 44, the protective shell 5 can be provided with a stopping portion at the outer edge of the mounting hole, the stopping portion can be in positioning fit with the outer ring of the second bearing 43 in the axial direction of the driven shaft 40, and therefore in the working process of the second bearing 43, the driven shaft 40, the second bearing 43 and the second bearing seat 44 can be in positioning fit with the protective shell 5 in the axial direction, and further the safety and reliability of the washing machine are guaranteed.

In the field of washing machines, a belt transmission part is generally adopted to drive and connect the driving device and the inner drum shaft, so that the transmission assembly 4 can further comprise a belt pulley 45 and a belt 46, the belt 46 can be in transmission connection with the driving shaft of the driving device 2 and the belt pulley 45, the driving device 2 can drive the belt pulley 45 to rotate, the belt pulley 45 can be in positioning fit with the driven shaft 40 in the circumferential direction of the driven shaft 40, and then the belt pulley 45 can drive the driven shaft 40 to rotate.

Specifically, those skilled in the art can determine the types and sizes of the belt pulley 45 and the belt 46 according to the dimensions of the washing machine box and the outer drum 3, the power of the driving device 2 and other parameters; the belt pulley 45 and the driven shaft 40 can be respectively provided with a spline structure which is matched with each other, the belt pulley 45 can be sleeved on the driven shaft 40, and the belt pulley 45 and the driven shaft can be connected through the spline structure, so that the stability of the positioning fit of the belt pulley 45 and the driven shaft 40 in the circumferential direction is improved.

More specifically, the pulley 45 may be disposed between the first bearing 41 and the second bearing 43 in the axial direction of the driven shaft 40, which may ensure the operational stability of the transmission assembly 4 and may make the pulley 45 less likely to slip on the driven shaft 40.

In order to further improve the reliability of the washing machine, the reinforcing shell 1 may further be provided with a positioning protrusion 11, and the positioning protrusion 11 may be in positioning fit with the outer drum 3 in a direction perpendicular to the first direction.

Specifically, in the manufacturing process of the reinforcement shell 1, the positioning protrusions 11 may be directly formed on the reinforcement shell 1, the positioning protrusions 11 may protrude toward the side of the outer cylinder 3, and a plurality of positioning protrusions 11 may be provided; the positioning boss 11 can be in positioning engagement with the outer cylinder 3 in a direction perpendicular to the first direction, i.e., a tangential direction of the circumferential direction of the driven shaft 40; meanwhile, the design of the positioning convex part 11 enables the contact area of the reinforcing shell 1 and the outer cylinder 3 to be larger, which can further improve the structural strength of the outer cylinder 3.

More specifically, the positioning boss 11 may be a closed ring structure, and the positioning boss 11 of this structure may be disposed on the side of the reinforcement shell 1 close to the outer cylinder 3 around the first bearing seat 42, and the positioning boss 11 of the closed ring structure may make the positioning fit of the positioning boss 11 and the outer cylinder 3 in the circumferential direction of the driven shaft 40 more stable.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A washing machine, characterized by comprising:

the box body is provided with an accommodating space;

a drive arrangement including a drive shaft;

the outer cylinder is provided with two opposite surfaces along the thickness direction of the outer cylinder, the surface close to the box body is a first surface, the surface far away from the box body is a second surface, and the direction of the first surface pointing to the second surface is a first direction; the outer barrel has a recess recessed from the first surface in the first direction;

the transmission assembly comprises a driven shaft, and the driven shaft is in transmission connection with the driving shaft;

wherein:

the outer cylinder and the driving device are both arranged in the accommodating space; at least a portion of the drive assembly is mounted within the recess;

the washing machine further comprises a reinforcing shell, the reinforcing shell is arranged in the concave part, and the reinforcing shell is connected with the outer barrel;

the reinforcing shell has an inner wall facing away from the outer drum;

the transmission assembly further comprises a first bearing and a first bearing seat, the driven shaft is matched with the first bearing, the first bearing seat is arranged on the inner wall, and the inner wall is sunken towards the outer cylinder to form an installation cavity so as to install at least one part of the transmission assembly.

2. The washing machine as claimed in claim 1, further comprising a protective casing connected with the reinforcing casing, the mounting cavity being located between the reinforcing casing and the protective casing.

3. The washing machine as claimed in claim 2, wherein the transmission assembly further comprises a second bearing and a second bearing housing, the second bearing being engaged with the driven shaft;

4. The washing machine as claimed in claim 3, further comprising a fastening screw;

5. The washing machine as claimed in claim 4, wherein the transmission assembly further comprises a pulley and a belt, the pulley being in transmission connection with the drive shaft through the belt;

6. The washing machine as claimed in claim 5, wherein the pulley is disposed between the first bearing and the second bearing in an axial direction of the driven shaft.

7. The washing machine as claimed in claim 1, wherein the reinforcement case further has a positioning protrusion which is in positioning engagement with the outer tub in a direction perpendicular to the first direction.

8. The washing machine as claimed in claim 7, wherein the positioning boss is a closed ring structure.