CN213389376U

CN213389376U - Washing machine

Info

Publication number: CN213389376U
Application number: CN202021227763.7U
Authority: CN
Inventors: 蒋哲昊; 叶超; 金胜秋
Original assignee: Bo Xihua Electric Jiangsu Co Ltd
Current assignee: BSH Electrical Appliances Jiangsu Co Ltd; Bo Xihua Electric Jiangsu Co Ltd
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2021-06-08
Anticipated expiration: 2030-06-29
Also published as: WO2022002577A1; EP4172398A1

Abstract

The utility model discloses a washing machine that preceding opened door contains the cylinder that axial level or slope set up, the support fixed set up in the axial tip of cylinder, the drive shaft with support fixed connection, drive module with drive shaft drive connects, thereby can drive shaft then drive the support reaches rotary motion is to the cylinder, the support towards one side integrated into one piece mount pad of cylinder, transmission adorn in the mount pad, the drive shaft is connected in the transmission with stretch to stirring piece in the cylinder. According to the utility model discloses an embodiment, the installation of stirring piece is very compact, practices thrift the space, also practices thrift the manufacturing and the cost of maintenance of part simultaneously, makes the installation procedure more simple and convenient.

Description

Washing machine

[ technical field ]

The utility model relates to a washing machine belongs to domestic appliance technical field.

[ background art ]

Washing machines, especially those with a drum disposed horizontally or obliquely in the axial direction, generally wash laundry by rotating the drum to lift and beat the laundry. Compared with the traditional top-opening impeller washing machine, the mechanical strength in the washing process is lower, the clothes can be well protected, and the washing efficiency is slightly deficient for the clothes with stubborn stains. Meanwhile, after the washing machine dries the clothes at high speed, some cotton clothes are easy to cling to the inner wall of the middle drum, and omission is possibly caused, or the subsequent possible drying process is influenced.

Some washing machines attempt to improve the above problem, for example, a drum washing machine is provided with a stirring member inside to rotate relative to the drum, so as to increase the mechanical force for washing the laundry during the washing process, thereby improving the washing efficiency. Meanwhile, after the clothes are dried, the clothes can be better stirred in the loosening process, and the clothes attached to the inner wall of the central drum can fall off with a larger machine.

In order to connect and drive the stirring element, known prior art solutions include adding a further set of drive and transmission systems to the original drum drive system, connected to the stirring element. Or a transmission system is added on the original driving system, and the added transmission system comprises a bearing seat axially arranged along the driving shaft and a transmission device arranged in the bearing seat.

Both solutions are not only mechanically complex, but also take up further axial space, already very limited by the washing machine itself, thus squeezing the washing space of the drum.

[ contents of utility model ]

An object of the utility model is to provide a washing machine improves the technical problem who exists among the prior art.

The embodiment of the utility model discloses an include: a washing machine comprises a drum which is axially horizontally or obliquely arranged, a support is fixedly arranged at the axial end part of the drum, a driving shaft is fixedly connected with the support, a driving module is in transmission connection with the driving shaft so as to drive the driving shaft and then the support and the drum to rotate, a mounting seat is integrally formed on one side of the support facing the drum, a transmission device is arranged in the mounting seat, and is in transmission connection with the driving shaft and a stirring piece extending into the drum so as to enable the stirring piece to reversely rotate relative to the drum.

In some embodiments, the driving shaft has an end portion extending into the mounting seat, the outer peripheral surface of the end portion is provided with teeth, the transmission device comprises an internal gear coaxially arranged with the driving shaft and rotatably mounted in the mounting seat, a set of planetary gears respectively meshing with the driving shaft and the internal gear, and a stirring member support fixedly connected with the internal gear, and the stirring member is fixedly connected with the stirring member support.

An advantageous embodiment further comprises that a bearing is mounted in the mounting socket, and the internal gear is rotatably mounted inside the bearing relative to the mounting socket.

Preferably, the bearing includes an outer peripheral wall fixedly connected with the mounting seat and an inner peripheral wall fixedly connected with the internal gear, an annular accommodating cavity is included between the outer peripheral wall and the inner peripheral wall, and a plurality of balls are contained in the accommodating cavity, so that the inner peripheral wall is allowed to rotate relative to the outer peripheral wall.

Preferably, the stirring part support is fixedly connected with the axial end face of the internal gear.

Preferably, the support includes a plurality of arms that are radial extension, the centripetal end of arm is integrative to be connected and is formed connecting portion, the mount pad is located on the connecting portion.

An advantageous embodiment further comprises that the mounting comprises an annular peripheral wall, and a cavity is formed surrounded by the peripheral wall.

According to the utility model discloses an embodiment, the installation of stirring piece is very compact, practices thrift the space, also practices thrift the manufacturing and the cost of maintenance of part simultaneously, makes the installation procedure more simple and convenient.

The structure of the present invention and other objects and advantages thereof will be more apparent from the description of the preferred embodiments taken in conjunction with the accompanying drawings.

[ description of the drawings ]

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention. Wherein,

FIG. 1 is an exploded view of a drum system of a washing machine;

FIG. 2 is an exploded view of the bracket assembly, stirring member and drum rear wall;

FIG. 3 is a partial perspective view of the bracket assembly in an assembled state;

FIG. 4 is an exploded view of the bearing, internal gear and stirring member support;

fig. 5 is a schematic diagram of the motion principle of the transmission.

[ detailed description of the invention ]

As shown in fig. 1, the washing machine includes a drum 1 that is axially horizontally or obliquely disposed. The drum 1 comprises a cylindrical side wall 11, an annular front wall 12 connected to one end of the cylindrical side wall 11, and a rear wall 13 connected to the other end of the cylindrical side wall 11. Wherein "front" and "rear" are merely for distinguishing relative positional relationships. For example, the front wall 12 is closer to the user's operating position during use of the washing machine, and the rear wall 13 is farther from the user's operating position relative to the front wall 12.

A plurality of lifting ribs 2 are arranged in the side wall 11 along the axial direction. It is more common to have three lifting ribs 2. During the operation of the washing program, the drum 1 rotates, the lifting ribs 2 push up the clothes close to the drum, and when the clothes reach a certain angle, the clothes fall from a higher position under the action of gravity, inertia and the like, so that the beating effect is realized, and the clothes are washed. The lifting ribs 2 can also be used to agitate the laundry and wash water to accelerate stain separation during some washing stages or conditions.

The bracket assembly 3 is disposed at an axial end of the drum 1, is located outside the rear wall 13, and is fixedly connected to the drum 1. Wherein the bracket assembly 3 comprises a bracket 31 and a drive shaft 32 fixedly connected to each other. The driving module 4 is in transmission connection with the driving shaft 32, so as to drive the driving shaft 32, and then the bracket 31 and the roller 1 to rotate. Wherein the driving module 4 may comprise a motor 41, a transmission belt 42 and a pulley 43. The driving module 4 may also include various other combinations and structures for implementing the driving function. For example, a direct drive motor or a reduction clutch may be used in conjunction with the motor.

As shown in fig. 1 to 3, the bracket 31 includes a plurality of radially extending arm portions 311. The radial ends of the arm portions 311 are integrally connected to form a connecting portion 312. The side of the connection portion 312 facing the drum 1 is integrally formed with a mounting seat 313. The mounting seat 313 includes an annular peripheral wall 314, and a cavity 315 formed surrounded by the peripheral wall 314.

Drive shaft 32 has an end 321 that extends into cavity 315. The outer peripheral surface of the end portion 321 is provided with teeth.

The transmission device 33 is arranged in the cavity 315 of the mounting seat 313 and is in transmission connection with the driving shaft 32 and the stirring piece 5 extending into the roller 1. The transmission device 33 includes an internal gear 331 disposed coaxially with the driving shaft 32 and rotatably mounted in the mounting seat 313, a set of planetary gears 332 respectively engaged with the end 321 of the driving shaft 32 having teeth and the internal gear 331, and a stirring member holder 333 fixedly connected to the internal gear 331. The stirring part 5 is fixedly connected with the stirring part bracket 333. Specifically, the internal gear 331 is fitted over the end 321 of the drive shaft 32 having teeth, with a gap therebetween in the radial direction. The planetary gear 332 is provided in the gap, and connects the end 321 provided with teeth of the drive shaft 32 and the internal gear 331.

The stirring member holder 333 is fixedly connected to an axial end face of the internal gear 331. Specifically, the stirring member support 333 includes a plurality of radially and uniformly distributed support legs 3330. The outer ends of the supporting legs 3330 are fixedly connected to the axial end surfaces of the inner gears 331, respectively. Thus, the pulsator 5 may be stably connected to the inner gear 331 through the pulsator support 333.

As shown in fig. 3 to 5, the mounting seat 313 houses the bearing 6. The oil seal 7 protects the bearing 6 and prevents the bearing 6 from rusting and corroding. The bearing 6 includes an outer peripheral wall 61 fixedly connected to the mount 313 and an inner peripheral wall 62 fixedly connected to the inner gear 331. In a particular embodiment, the two fixed connections may be achieved by an interference fit. The outer circumferential wall 61 is non-fixedly connected with the inner circumferential wall 62, and an annular accommodating cavity 63 is contained between the outer circumferential wall and the inner circumferential wall. The receiving chamber 63 houses a plurality of balls 64, thereby allowing the inner circumferential wall 62 to rotate relative to the outer circumferential wall 61. Thus allowing the inner gear 331 to rotate relative to the mount 313.

As shown in fig. 5, when the drive shaft 32 rotates in the first direction a, the planetary gears 332 are rotated in the second direction B opposite thereto. The rotation of the planetary gear 332 further drives the internal gear 331 to rotate in the same direction as the planetary gear 332, i.e. in the second direction B. The internal gear 331 drives the stirring member support 333 and the stirring member 5 fixedly connected thereto to rotate in the second direction B. Since the driving shaft 32, the bracket 31 and the drum 1 are fixedly connected, respectively, the drum 1 rotates in the same direction as the driving shaft 32, i.e. the drum rotates in the first direction a. It can be seen that the stirring members 5 are rotated in the opposite direction to the drum 1 by the rotation of the driving shaft 32.

Wherein fig. 5 is merely a schematic representation to assist in explaining the motion principle of the transmission. The structure and the assembly relationship of the parts are subject to the other drawings and the text explanation of the specification.

The stirring bar 5 may be a disk shape having a concave-convex design on the surface as shown in fig. 1 and 2, and may be close to the rear wall 13 of the drum 1. In the washing process of the washing machine, the stirring member 5 helps to stir the laundry and the washing water, improve the washing effect and accelerate the process, and meanwhile, in the process of shaking the laundry, the stirring member 5 rotating in the reverse direction can better loosen the laundry and has a greater chance of dropping the laundry stuck in the drum 1.

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. The utility model provides a washing machine, contains drum (1) that axial level or slope set up, the support fixed set up in the axial tip of drum, the drive shaft with support fixed connection, drive module with the drive shaft transmission is connected to can drive the drive shaft then drive the support and the drum is rotary motion, its characterized in that: the side, facing the roller, of the support is integrally provided with a mounting seat, a transmission device is arranged in the mounting seat, and is in transmission connection with a driving shaft and a stirring piece extending into the roller, and the stirring piece is enabled to rotate reversely relative to the roller.

2. A washing machine as claimed in claim 1, wherein: the driving shaft is provided with an end part extending into the mounting seat, the peripheral surface of the end part is provided with teeth, the transmission device comprises an internal gear which is coaxially arranged with the driving shaft and rotatably arranged in the mounting seat, a group of planetary gears which are respectively meshed with the driving shaft and the internal gear, and a stirring part support fixedly connected with the internal gear, and the stirring part is fixedly connected with the stirring part support.

3. A washing machine as claimed in claim 2, characterized in that: the bearing is arranged in the mounting seat, and the inner gear is rotatably arranged on the inner side of the bearing relative to the mounting seat.

4. A washing machine as claimed in claim 3, wherein: the bearing contain with mount pad fixed connection's periphery wall and with internal gear fixed connection's internal perisporium, the periphery wall with contain the annular between the internal perisporium and hold the chamber, hold the intracavity and be equipped with a plurality of balls, thereby allow the internal perisporium can for the periphery wall rotates.

5. A washing machine as claimed in claim 2, characterized in that: the stirring part support is fixedly connected with the axial end face of the inner gear.

6. A washing machine as claimed in claim 1, wherein: the support contains the plural number arm that is radial extension, the end body coupling that entades of arm forms connecting portion, the mount pad is located on the connecting portion.

7. The washing machine as claimed in claim 6, wherein: the mounting seat comprises an annular peripheral wall and a cavity formed by surrounding of the peripheral wall.