WO2019007329A1

WO2019007329A1 - Washing machine

Info

Publication number: WO2019007329A1
Application number: PCT/CN2018/094292
Authority: WO
Inventors: 吴迪; 郝兴慧; 李以民; 劳春峰; 吕艳芬; 许升; 吕佩师
Original assignee: 青岛海尔洗衣机有限公司; 青岛海尔智能技术研发有限公司
Priority date: 2017-07-03
Filing date: 2018-07-03
Publication date: 2019-01-10
Also published as: CN109208229A

Abstract

The present invention relates to a washing machine, comprising: a box body, a washing tub for containing water, and a mounting plate mounted below the washing tub and used for supporting the washing tub. The mounting plate is connected to the box body by means of a vibration damping component; the washing tub is rotatably disposed on the mounting plate; a water discharge channel for guiding water from top to bottom is provided at the outer side of the washing tub; the upper end of the water discharge channel is communicated with the interior of the washing tub, and the lower end of the water discharge channel extends downwards along the wall of the washing tub to the bottom of the washing tub, to discharge water in the washing tub; the inner wall at the side of the water discharge channel opposite to the washing tub gradually deviates away from the axis of the washing tub from top to bottom, and the angle of deviation from the axis of the washing tub is 0°-10°. According to the washing machine, an outer tub structure is removed, and therefore, the capacity of the washing machine is expanded. On the other hand, a water discharge channel is provided at the outer side of the washing tub in the present invention, thereby preventing washing water from being concentrated at the upper end of the washing tub. Low noise is produced during operation, and the service life is long.

Description

Washing machine

Technical field

The present invention relates to laundry equipment, and more particularly to a washing machine.

Background technique

The existing pulsator washing machine generally comprises a washing tub, an outer tub, a vibration damping component and a power system. During washing and dehydrating, the washing tub rotates relative to the outer tub to cause the laundry and the washing water to act to wash the laundry or dehydrate. The purpose is that the outer tub is used as a water tub, and the laundry is not in contact with the laundry during the washing process, and the outer tub is installed outside the washing tub to provide support for the washing tub, and the outer tub of the existing washing machine is relatively larger than the washing tub. The amount of washing water between the inner and outer barrels is large and cannot be fully utilized. This arrangement is not only unfavorable for water saving, but also causes the overall volume of the washing machine to be large. The Chinese invention patent No. 99230455.5 discloses a single-barrel type water-saving washing machine, and a water collecting device is arranged at the barrel mouth of the washing bucket, and the water collecting port of the water collecting device is placed around the barrel mouth of the washing tub. The water collecting device is located at the mouth of the bucket and is connected to a plurality of drain pipes. They are arranged symmetrically from top to bottom along the outer wall of the washing tub. When the tank is dry, the water collecting device collects the centrifugal water flowing due to the high speed and lowers it downward. Guided to drain, although the patent saves the outer tub, when the washing machine is dehydrated, the washing water will enter the water collecting device and will concentrate in the water collecting chamber under the action of centrifugal force, and it is difficult to flow down the drain pipe, causing washing. The water is concentrated on the upper end of the washing tub, so that the upper and lower ends of the washing tub are unbalanced. Especially when there is more water remaining in the washing tub, most of the washing water is concentrated in the collecting chamber and is not discharged, thereby increasing the overall center of gravity of the inner tub and increasing the vibration of the inner tub. The working load of the dehydration motor is increased, and the motor is easily damaged.

The present invention has been made in view of this.

Summary of the invention

SUMMARY OF THE INVENTION An object of the present invention is to overcome the deficiencies of the prior art and to provide a washing machine capable of expanding the volume of the washing tub and preventing the washing water from being concentrated above the washing tub during dehydration.

In order to achieve the object, the present invention adopts the following technical solutions:

A washing machine includes a box body, a washing tub for holding water, a mounting plate installed at a lower portion of the washing tub for supporting the washing tub, the mounting plate being connected to the box body through a vibration damping component, and the washing tub can be opposite to the mounting plate Rotating the setting, the outer side of the washing tub is provided with a drainage channel for guiding water from the top to the bottom, the upper end of the drainage channel is communicated with the interior of the washing tub, and the lower end extends down the barrel wall of the washing tub to the bottom of the washing tub. The water in the washing tub is discharged, and the inner wall surface of the drain passage on the side opposite to the washing tub is gradually deviated from the upper and lower directions away from the axis of the washing tub, and the deviation angle from the axis of the washing tub is 0° to 10°.

Further, the mounting plate is provided with a water retaining ring and encloses a cavity structure for collecting the water discharged from the washing tub. The bottom of the cavity structure is provided with a drain pipe, and the drain channel guides water into the cavity structure. .

Further, the upper end of the drainage channel is provided with a dehydration port communicating with the interior of the washing tub, and the lower end is provided with a water outlet, and the water outlet is located in a cavity structure surrounded by the water retaining ring.

Further, the drainage channel comprises a water channel housing and a part of the washing tub wall, the water channel housing is fastened on the washing tub wall, and the upper end of the water channel housing extends to the upper port of the washing tub, through the dehydrating port and the inside of the washing tub Connected, the lower end extends to the bottom of the washing tub and forms a water outlet.

Further, the dewatering port is formed on the wall of the washing tub; preferably, the dehydrating port is located on the wall of the washing tub near the port on the washing tub.

Further, the inner wall surface of the drainage channel away from the side of the washing tub is formed on the waterway casing, and the deviation angle of the inner wall surface from the axis of the washing tub is 0° to 3°.

Further, a bottom of the washing tub is provided with a washing tub drain port, and a valve plug for controlling opening or closing of the washing tub drain port is installed, and when the valve plug is opened, the washing tub drain port drains into the water retaining ring Enclosed in the cavity structure.

Further, the top of the water retaining ring is higher than the water outlet of the drainage channel, and a certain gap is reserved between the inner peripheral wall of the water retaining ring and the outer wall of the drainage channel.

Further, the upper edge of the water retaining ring is lower than the upper end of the washing tub; preferably, the height of the water retaining ring is lower than the 1/2 height of the washing tub.

Further, a top end of the washing tub is provided with a balance ring, and the dewatering port is disposed on a lower side of the balance ring. The inner diameter of the balance ring is smaller than the inner diameter of the upper end of the washing tub to block the water in the washing tub from crossing the balance ring.

Further, the utility model further comprises a power device for driving the rotation of the washing tub, the power device is fixedly mounted on the bottom of the mounting plate, and comprises a motor and a deceleration clutch, and the rotating shaft of the motor is connected to the bottom of the washing tub through the deceleration clutch to drive the washing tub to rotate.

Further, the mounting plate is further provided with a locking structure, the locking mechanism is located at the bottom of the washing tub and cooperates with the washing tub to restrict the rotation of the washing tub.

Further, the vibration damping component comprises a boom and a boom base, and the edge of the mounting plate is provided with a bayonet engaging with the boom seat, the boom seat is in the shape of a bayonet and located under the mounting plate side.

After adopting the technical solution described in the present invention, the following beneficial effects are brought about:

The washing machine of the invention eliminates the structure of the outer tub, and the washing tub directly serves as a water tub, which can improve the utilization rate of the washing water and reduce the usage amount of the washing water, and at the same time, after the outer tub is omitted, the volume of the washing tub can be set more. The amount of laundry that can be washed is increased, and the purpose of expanding the washing machine is achieved. On the other hand, the outside of the washing tub of the present invention is provided with a drainage channel, the drainage channel is directly connected with the inside of the washing tub, and the drainage channel is gradually increased from the top to the bottom. Deviating away from the axis of the washing tub, so that when the washing machine is dehydrated, the water in the washing tub enters the drain passage, and flows downward under the action of centrifugal force, so that the washing water is concentrated on the upper end of the washing tub, and the washing tub is rotated more. Stable and low noise during operation and long service life.

DRAWINGS

Figure 1: Schematic diagram of the structure of the first embodiment of the present invention;

Figure 2 is a front elevational view of the washing tub of the first embodiment of the present invention;

Figure 3 is a cross-sectional view showing the structure of a washing tub according to a first embodiment of the present invention.

Figure 4 is a partial enlarged view of K of Figure 3;

Figure 5 is a cross-sectional view showing the structure of a second embodiment of the present invention;

Figure 6 is a cross-sectional view showing the structure of a washing tub according to a second embodiment of the present invention;

Figure 7 is a partial enlarged view of K of Figure 5;

Figure 8 is a partial enlarged view of Y of Figure 6;

Among them: 1, box 2, washing bucket 3, power unit 4, mounting plate 5, drainage channel 6, drain pipe 7, balance ring 8, dehydration port 9, boom 10, boom seat 11, water collecting ring 12, The lower water collecting ring 13, the water retaining ring 14, the locking mechanism 15, the valve plug 16, the water channel housing 17, and the water outlet.

Detailed ways

The specific embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

Embodiment 1

As shown in FIGS. 1 to 4, a washing machine includes a casing 1, a washing tub 2 for accommodating laundry, a power unit 3 for driving the washing tub 2 to rotate, and a mounting plate 4 mounted at a lower portion of the washing tub 2. And a vibration damping member that connects the mounting plate 4 and the case 1. The washing tub 2 is rotatably disposed in the casing 1, the washing tub 2 is supported on the mounting plate 4, and is rotatable relative to the mounting plate 4, the washing tub 2 is used as a tub for accommodating washing water, and the mounting plate 4 is used for The washing tub 2 is supported, and the mounting plate 4 is movably connected to the casing 1 through a vibration damping member, and when washing or dehydrating, the washing tub 2 and the mounting plate 4 generate vibration, which is transmitted to the vibration damping member and absorbed.

A water retaining ring 13 is disposed on the mounting plate 4, and the water retaining ring 13 extends toward the washing tub 2 in a direction surrounding the bottom of the washing tub 2, and is surrounded by a cavity structure for collecting the washing tub. The discharged washing water is drained to the bottom of the cavity structure by a drain pipe 6. The outer side of the washing tub 2 is provided with a drain channel 5 for guiding water from the top to the bottom, which may be one or more. The drain channel 5 is vertically disposed, and the upper end thereof is provided with a dehydrating port 8 communicating with the inside of the washing tub 2 The lower end extends down the barrel wall of the washing tub 2 to the bottom of the washing tub 2, and a water outlet 17 is provided at the end, and the water outlet 17 is located in the cavity structure surrounded by the water retaining ring 13 The water flowing out of the nozzle 17 will fall into the cavity structure and be discharged to the outside of the casing 1 by the drain pipe 6.

The upper edge of the water retaining ring is lower than the upper end of the washing tub. Preferably, as shown in FIG. 1, the height of the water retaining ring 11 is lower than the 1/2 height of the washing tub 2.

The inner wall surface of the drain passage 5 on the side opposite to the washing tub 2 is gradually deviated from the upper and lower directions away from the axis of the washing tub, and the deviation angle from the axis of the washing tub is 0° < e < 10°, so that the drainage channel The water in 5 flows downward under the action of centrifugal force, and the water outlet 17 is located farthest from the axis of the washing tub.

The inner wall surface of the drain passage away from the side of the washing tub is formed on the waterway casing, and the deviation angle e of the inner wall surface from the axis of the washing tub is preferably 0° < e < 3°.

The inner diameter of the washing tub 2 is gradually increased from the bottom to the top. When the washing tub 2 rotates at a high speed, the washing water in the washing tub 2 will climb upward along the washing tub wall under the action of centrifugal force, and after rising to a certain height. It enters the drain passage 5 from the dewatering port 8, and then flows downward along the drain passage 5, flows out from the water outlet port 17 into the cavity structure, and is finally discharged from the washing machine drain pipe 6.

Specifically, the drain passage 5 includes a water passage housing 16 and a partial washing tub wall, and the water channel housing 16 is fastened to the washing tub wall, and the upper end of the water channel housing 16 extends to the upper port of the washing tub 2, and the lower end It extends to the bottom of the washing tub 2 and forms the water outlet 17, which is formed on the wall of the washing tub.

The bottom of the washing tub 2 is provided with a washing tub drain port, the draining port of the washing tub is located in a cavity structure surrounded by the water retaining ring 13, and a valve plug for controlling the opening or closing of the washing tub drain opening is installed. 15. When the valve plug 15 is opened, the washing tub drain is in communication with a cavity structure surrounded by the water retaining ring 13. In the washing stage, the valve plug 15 is in the closed state, and in the dehydration stage, the valve plug 15 is in the open state. When the valve plug 15 is opened, the washing water in the washing tub 2 flows into the cavity structure, and is discharged from the drain pipe 6 to the washing machine. outer.

The top end of the washing tub 2 is provided with a balance ring 7 which is located on the lower side of the balance ring 7. In order to avoid overflow of the washing water from the washing tub 2 during dehydration, the inner diameter of the balance ring 7 is smaller than the washing tub. The inner diameter of the upper end opening is such that a step surface is formed to block the water in the washing tub 2 from flowing upward over the balance ring 7. Specifically, the upper end of the washing tub 2 is provided with an annular bayonet stuck on the outer side of the bottom of the balance ring 7, and when the water in the washing tub 2 flows upward to contact with the balance ring 7, the bottom of the balance ring 7 will block the flow of water. The upward flow acts to collect the water flow into the dehydration port 8.

Preferably, the top of the water retaining ring 13 is higher than the water outlet 17 of the drain channel 5, and a certain gap is reserved between the inner peripheral wall of the water retaining ring 13 and the outer wall of the drain channel 5 to avoid the rotation of the washing tub 2 , creating a collision.

Preferably, the inner wall of the washing tub 2 is provided with a protrusion or a line for rubbing contact with the laundry, which can play a role of rubbing against the laundry during the washing process.

The power unit 3 is mounted at the bottom of the mounting plate 4, and includes a motor and a reduction clutch. The rotating shaft of the motor is coupled to the bottom of the washing tub through a deceleration clutch to drive the washing tub 2 to rotate. The output shaft of the reduction clutch is connected to the washing tub 2 through the mounting plate 4, and at least one dynamic seal is provided between the output shaft and the mounting plate 4. Preferably, the bottom of the mounting plate 4 is provided with a plurality of downwardly convex reinforcing ribs.

A locking structure 14 is further disposed on the upper surface of the mounting plate 4, and the locking mechanism 14 is located at the bottom of the washing tub 2 and cooperates with the washing tub 2 to restrict the rotation of the washing tub 2. The locking mechanism 14 The washing tub 2 can be locked to prevent the washing tub 2 from rotating. In the washing stage, the locking mechanism 14 locks the washing tub 2 from rotation, and during the dehydrating phase, the locking mechanism 14 is unlocked, so that the washing tub 2 can be rotated.

The vibration damping member includes a boom 9 and a boom base 10, the upper end of the boom 9 is connected to the casing 1, and the lower end is connected to the boom base 10. The edge of the mounting plate 4 is provided with a boom base. 10 mating bayonet, the boom base 10 is card-shaped in the bayonet, and is located on the lower side of the mounting plate 4, and a spring is installed in the boom base 10, under the gravity of the mounting plate 4 and the washing tub 2, the boom The spring in the seat 10 is compressed and functions to reduce vibration when the washing tub 2 vibrates. The mounting plate 4 is located at the lower portion of the washing tub 2 such that the boom seat 10 is located below the washing tub 2, and does not occupy the space between the washing tub 2 and the casing 1, which is advantageous for expanding the volume of the washing tub 2.

The dehydration process of the first embodiment is: first, the water in the washing tub 2 is first discharged through the washing tub drain of the bottom of the washing tub 2 before dehydration, and then the motor drives the washing tub 2 to rotate at a high speed, and the water remaining in the washing tub 2 is in centrifugal force. Under the action of the washing bucket wall, it climbs up and enters the drainage channel 5, in the drainage channel 5, the water flow changes the flow direction, flows downward, and flows out along the drainage channel 5 to the washing tub 2, and falls into the water retaining ring 13 The enclosed cavity structure is finally discharged outside the washing machine through the drain pipe 6.

Embodiment 2

As shown in FIG. 5 to FIG. 8 , the difference between the embodiment and the first embodiment is that the upper end of the washing tub 2 is further provided with a water collecting ring 11 , and the inner side of the water collecting ring 11 is provided with dehydration communicating with the washing tub 2 . The mouth 8 has an upper end connected to the water collecting ring 11 and a lower end communicating with the washing tub drain provided at the bottom of the washing tub 2.

The inner diameter of the washing tub 2 is gradually increased from the bottom to the top. When the washing tub 2 rotates at a high speed, the washing water in the washing tub 2 will climb upward along the washing tub wall under the action of centrifugal force, and after rising to a certain height. From the dewatering port 8 of the water collecting ring 11 into the water collecting ring 11, the volume of the water collecting ring 11 is small, the washing water will enter the drainage channel 5 from the water collecting ring 11, and then flow down the drainage channel 5, and finally Discharge from the washing machine drain.

Specifically, the drainage channel 5 includes a water channel housing 16 and a partial washing tub wall. The water channel housing 16 is fastened to the washing tub wall. The upper end of the water channel housing 16 is connected to the water collecting ring 11 and the lower end extends to the washing. The bottom of the bucket 2.

Preferably, the dehydration ports 8 are plural and evenly distributed along the circumferential direction of the washing tub 2.

Preferably, the lower end of the washing tub 2 is further provided with a lower water collecting ring 12, the lower water collecting ring 12 is disposed at the outer periphery of the washing tub 2, and the inner side of the lower water collecting ring 12 is provided with an opening and a washing of the bottom of the washing tub The barrel drain port is connected, and the lower end of the drain passage 5 is connected to the lower water collecting ring 12, and communicates with the washing tub drain port at the bottom of the washing tub through the lower water collecting ring 12. The lower collecting ring 12 has a large volume, and a part of the water can be stored when the washing machine is dehydrated, and the balance ring 7 is used to balance the washing tub 2.

The dehydration process of the second embodiment is: first, the water in the washing tub 2 is first discharged through the washing tub drain of the bottom of the washing tub 2 before dehydration, and then the motor drives the washing tub 2 to rotate at a high speed, and the water remaining in the washing tub 2 is in centrifugal force. Under the action of the washing bucket wall, it climbs upwards and enters the water collecting ring 11 through the dehydrating port 8, and then enters the drainage channel 5, in the drainage channel 5, the water flow changes the flow direction, flows downward, and along the drainage channel The lowering of the water collecting ring 12 is carried out by the lower water collecting ring 12, and then falls into the cavity structure surrounded by the water retaining ring 13 through the washing tub drain port at the bottom of the washing tub, and finally discharged out of the washing machine through the drain pipe 6.

The above is an embodiment of the present invention, and is not intended to limit the scope of the present invention. It should be noted that various modifications and variations can be made without departing from the principles of the invention. Improvements should also be considered as protection scope of the present invention.

Claims

A washing machine includes a box body, a washing tub for holding water, a mounting plate installed at a lower portion of the washing tub for supporting the washing tub, the mounting plate being connected to the box body through a vibration damping component, and the washing tub can be opposite to the mounting plate The rotating arrangement is characterized in that: the outer side of the washing tub is provided with a drainage channel for guiding water from the top to the bottom, the upper end of the drainage channel is communicated with the interior of the washing tub, and the lower end extends downward along the barrel wall of the washing tub to the washing The bottom of the tub discharges the water in the washing tub, and the inner wall surface of the drain passage on the side opposite to the washing tub is gradually deviated from the upper and lower directions away from the axis of the washing tub, and the deviation angle from the axis of the washing tub is 0°. ~10°.
A washing machine according to claim 1, wherein said mounting plate is provided with a water retaining ring and encloses a cavity structure for collecting the water discharged from the washing tub, and the bottom of the cavity structure is provided with a drain. a tube that conducts water into the cavity structure.
A washing machine according to claim 2, wherein the upper end of the drainage channel is provided with a dehydration port communicating with the interior of the washing tub, and the lower end is provided with a water outlet, the water outlet being located in a recess surrounded by a water retaining ring. Inside the cavity structure.
A washing machine according to any one of claims 1 to 3, wherein said drain passage comprises a water passage casing and a partial washing tub wall, said waterway casing being fastened to the washing tub wall, and the waterway casing The upper end extends to the upper port of the washing tub, communicates with the inside of the washing tub through the dehydrating port, and the lower end extends to the bottom of the washing tub, and forms a water outlet.
A washing machine according to claim 4, wherein said dewatering port is formed on the wall of the washing tub; preferably, the dehydrating port is located on the wall of the washing tub adjacent to the port on the washing tub.
The washing machine according to claim 4, wherein the inner wall surface of the drain passage away from the washing tub is formed on the waterway casing, and the deviation angle of the inner wall surface from the axis of the washing tub is 0° to 3 °.
A washing machine according to claim 2, wherein a bottom of the washing tub is provided with a washing tub drain port, and a valve plug for controlling opening or closing of the washing tub drain opening is installed, and the valve plug is opened. At the time, the washing tub drain drains into the cavity structure enclosed by the water retaining ring.
A washing machine according to claim 2, wherein the top of the water retaining ring is higher than the water outlet of the drain passage, and a certain gap is reserved between the inner peripheral wall of the water retaining ring and the outer wall of the drain passage.
A washing machine according to claim 8, wherein the upper edge of said water retaining ring is lower than the upper end of the washing tub; preferably, the height of the water retaining ring is lower than a height of 1/2 of the washing tub.
A washing machine according to claim 5, wherein a top end of the washing tub is provided with a balance ring, and the dewatering port is disposed on a lower side of the balance ring, and an inner diameter of the balance ring is smaller than an inner diameter of the upper end of the washing tub. To block the water in the wash tub from crossing the balance ring.
A washing machine according to any one of claims 1 to 10, wherein the mounting plate is further provided with a locking structure, the locking mechanism is located at the bottom of the washing tub and cooperates with the washing tub to limit The washing tub rotates.
A washing machine according to claim 1, further comprising: a power unit that drives the rotation of the washing tub, the power unit being fixedly mounted at the bottom of the mounting plate.
A washing machine according to claim 1, wherein said vibration damping member comprises a boom and a boom base, and said mounting plate has a bayonet on the edge of said mounting plate, said boom The seat card is in the bayonet and is located on the underside of the mounting plate.