CN107488982B

CN107488982B - Washing machine dehydration damping structure and washing machine

Info

Publication number: CN107488982B
Application number: CN201710659590.2A
Authority: CN
Inventors: 王叙圣; 王宁
Original assignee: Hefei Midea Laundry Appliance Co Ltd
Current assignee: Hefei Midea Laundry Appliance Co Ltd
Priority date: 2017-08-04
Filing date: 2017-08-04
Publication date: 2020-05-19
Anticipated expiration: 2037-08-04
Also published as: CN107488982A

Abstract

The invention provides a dewatering vibration reduction structure of a washing machine and the washing machine. The dewatering vibration damping structure of the washing machine comprises: the dewatering device comprises a dewatering barrel, a dewatering motor and four spring assemblies, wherein the dewatering motor is positioned below the dewatering barrel, is connected with the dewatering barrel and is used for driving the dewatering barrel to rotate; the four spring assemblies respectively support four corners of the dewatering motor, wherein two spring assemblies are distributed in the front and back direction, and the other two spring assemblies are distributed in the left and right direction; each spring assembly includes a spring, and the spring constant of the spring in the rear spring assembly is greater than the spring constant of the springs in the other three spring assemblies. According to the technical scheme, four spring assemblies are adopted to support four corners of the dewatering motor respectively, so that the radial swing of the dewatering barrel is reduced; the elastic coefficient of the spring positioned at the rear side is greater than that of other springs, so that the reinforced supporting effect is achieved when the dewatering barrel is inclined backwards, the vibration is reduced, and the anti-eccentricity capability of the dewatering system is improved.

Description

Washing machine dehydration damping structure and washing machine

Technical Field

The invention relates to the technical field of household appliances, in particular to a dewatering vibration reduction structure of a washing machine and the washing machine.

Background

The existing double-drum washing machine, as shown in fig. 1, the dewatering system generally adopts three spring assemblies 3', 4', 5' with the same structure to support the dewatering motor 2', so as to achieve the vibration reduction effect, but for large-capacity products, if the three spring assemblies 3', 4', 5' are adopted to support the dewatering motor 2', then the spring with larger elastic coefficient is needed to be adopted, however, the spring with larger elastic coefficient can lead to the obvious increase of resonance, the phenomenon that the dewatering drum 1' collides with the box body can often occur, the vibration of the whole machine is larger, the vibration noise is larger, and the experience effect of users is influenced.

Disclosure of Invention

The present invention is directed to solving at least one of the above problems.

To this end, an aspect of the present invention is directed to provide a dehydrating vibration reducing structure of a washing machine.

Another aspect of the present invention is to provide a washing machine including the above-described dehydrating vibration reducing structure of the washing machine.

In order to achieve the above object, an aspect of the present invention provides a dehydrating vibration reducing structure of a washing machine, including: a dewatering barrel; the dehydration motor is positioned below the dehydration barrel, is connected with the dehydration barrel and is used for driving the dehydration barrel to rotate; and four spring assemblies respectively supporting four corners of the dehydration motor, wherein two of the spring assemblies are distributed in the front-back direction, the other two of the spring assemblies are distributed in the left-right direction, each spring assembly comprises a spring, and the elastic coefficient of the spring in the spring assembly positioned at the rear side is greater than the elastic coefficients of the springs in the other three spring assemblies.

According to the dehydration vibration damping structure of the washing machine, provided by the technical scheme of the invention, four spring assemblies are adopted to respectively support the front corner, the rear corner, the left corner and the right corner of the dehydration motor, so that the radial swing of the dehydration barrel is reduced, and the phenomenon that the dehydration barrel collides with the box body is reduced; secondly, because when dehydration starts, the phenomenon that dehydration barrel inclines to the rear side earlier often appears, the back deflects along the clockwise, consequently, the elastic coefficient of the spring that is arranged in the rear side among four spring unit designs is greater than the elastic coefficient of all the other springs, preferentially, the elastic coefficient of the spring that is arranged in the rear side among four spring unit designs is slightly bigger than all the other, play the reinforcing support effect when dehydration barrel inclines backward like this, prevent that dehydration barrel from taking place great swing in this direction, thereby be unlikely to influence the rotatory equilibrium of dehydration barrel when all the other three spring unit atress warp to a certain position, through setting up the spring of different elastic coefficients promptly, reduce vibration, promote dewatering system's anti-eccentricity ability, thereby reduce the vibration of whole machine, reduce the vibration noise, promote user's experience effect.

In addition, the dewatering vibration reduction structure of the washing machine provided by the technical scheme of the invention also has the following additional technical characteristics:

in the technical scheme, the spring coefficients of the springs in the other three spring assemblies are the same; or the elastic coefficient of one spring in the other three spring assemblies is different from the elastic coefficients of the other two springs.

The elastic coefficients of the springs in the other three spring assemblies are the same, and the elastic coefficients of the springs in the three spring assemblies are slightly smaller than the elastic coefficient of the spring in the spring assembly positioned at the rear side, so that the processing complexity and the assembly difficulty of the four spring assemblies are reduced on the premise of ensuring that the dewatering system has good eccentricity resistance, the production efficiency is improved, and the production cost is reduced; of course, the elastic coefficient of one spring in the other three spring assemblies can be different from the elastic coefficients of the other two springs, and the elastic coefficients of the springs in the other three spring assemblies can be designed to be different, so that the effect of improving the eccentricity resistance of the dewatering system can be achieved.

In the above technical solution, the free height of the spring in the spring assembly located at the rear side is the same as the free heights of the springs in the other three spring assemblies, that is, the free heights of the springs in the four spring assemblies are all the same.

The free heights of the springs in the four spring assemblies are designed to be the same, so that the stability of the spring assemblies for supporting the dewatering barrel in no-load is ensured.

In the above technical solution, each spring assembly includes a spring sleeve, the spring sleeve is sleeved on the outer side of the spring, and the height of the spring sleeve in the spring assembly located at the rear side is lower than the height of the spring sleeves in the other three spring assemblies.

The spring sleeve is arranged, so that on one hand, the spring in the spring sleeve can be ensured to be stretched or compressed and deformed along the central axis direction of the spring sleeve, the spring is prevented from shaking to a large extent when the dehydration barrel rotates at a high speed, and the stability of supporting the dehydration barrel by using the spring assembly is improved; on the other hand, the maximum compression amount of the spring is determined, namely the spring is compressed to the height which is flush with the spring sleeve to ensure that the spring assembly has good supporting effect on the dewatering barrel; particularly, the dewatering barrel is mainly supported by a spring when the dewatering barrel is unloaded, and is supported by the spring and a spring sleeve together when the dewatering barrel is fully loaded.

Further, the height of the spring sleeve in the spring assembly at the rear side is lower than the height of the spring sleeves in the other three spring assemblies, preferably, the spring coefficient of the spring in the spring assembly at the rear side is slightly larger than that of the rest of the spring assemblies, and the height of the spring sleeve in the spring assembly at the rear side is slightly lower than that of the rest of the spring assemblies, so that the supporting effect of the spring sleeve in the spring assembly at the rear side on the dewatering barrel is weakened, the supporting effect of the spring in the spring assembly at the rear side on the dewatering barrel is correspondingly improved when the spring assembly is fully loaded, the energy absorption effect of the spring at the rear side is improved, the balance performance is not influenced when the rest of the spring assemblies are deformed to a certain position under force, namely, the vibration transmitted to the base by the dewatering barrel is weakened through the arrangement of the springs with different spring coefficients and the spring sleeves with different heights, and the eccentricity resistance of the dewatering system is improved.

In the technical scheme, the spring sleeves in the other three spring assemblies are the same in height; or the elastic coefficient of one spring in the other three spring assemblies is different from the elastic coefficients of the other two springs, and the height of the spring sleeve corresponding to the spring with the relatively larger elastic coefficient is lower than the height of the spring sleeve corresponding to the spring with the relatively smaller elastic coefficient.

The spring sleeves in the other three spring assemblies are arranged to have the same height, and the height of the spring sleeves in the three spring assemblies is slightly greater than that of the spring sleeve in the spring assembly positioned on the rear side, so that the processing complexity and the assembly difficulty of the four spring assemblies are reduced on the premise of ensuring that the dewatering system has good eccentricity resistance, the production efficiency is improved, and the production cost is reduced; of course, the relative height of the spring sleeve can be set according to the relative height of the spring in the spring sleeve, so that the height of the spring sleeve corresponding to the spring with the relatively large elastic coefficient is slightly lower than the height of the spring sleeve corresponding to the spring with the relatively small elastic coefficient, and the effect of improving the eccentricity resistance of the dewatering system can also be achieved.

In the technical scheme, the cross section of the spring sleeve is in a circular or square ring shape or a special shape with the periphery concave inwards.

Preferably, the spring sleeve is designed into a special shape with the periphery concave inwards, so that the spring sleeve has uniform packing force on the spring positioned on the inner side of the spring sleeve, the spring can be stably compressed or extended along the axial direction of the spring sleeve, the supporting effect of the spring assembly on the dewatering barrel is further improved, the vibration transmitted to the spring assembly by the dewatering barrel is effectively absorbed, the vibration of the whole machine is weakened, and the vibration noise is reduced. Of course, the shape of the spring sleeve can be designed into a circular ring shape, a square ring shape or other shapes, and the spring sleeve is within the protection scope of the invention as long as the spring sleeve does not depart from the design concept of the invention.

In any of the above technical solutions, the dewatering vibration damping structure of the washing machine further includes: the base, four spring unit all fixes on the base, the dehydration motor is fixed four on the spring unit.

Support four spring unit between base and dehydration motor to absorb the vibration that transmits from dehydration bucket and dehydration motor to the base through four spring unit, avoid the vibration that dehydration bucket and dehydration motor produced to directly transmit for the base, thereby reduce the vibration of whole machine, reduce vibration noise.

In the above technical solution, each of the spring assemblies further includes: the spring upper cushion is fixedly connected with the upper end of the spring and is fixedly connected with the dehydration motor; and the spring lower cushion is fixedly connected with the lower end of the spring and fixedly connected with the base.

Every spring unit still includes and fills up and the spring is filled up down on the spring, utilizes the spring to fill up and the spring is filled up down to fix the spring in the spring cover on the one hand, and on the other hand passes through the spring and fills up the upper end and dehydration motor fixed connection that realize spring unit, fills up lower extreme and the base fixed connection that realizes spring unit through the spring to utilize spring unit to support the dehydration motor on the base indirectly.

In any one of the above technical solutions, the dewatering motor includes a motor housing, the motor housing has a fixing plate extending outward in a circumferential direction, and the four spring assemblies are all fixed below the fixing plate.

Motor housing has the fixed plate of outside extension, fixes four spring unit on the fixed plate, makes four spring unit keep away from the motor shaft as far as possible and arranges to the root of messenger's dewatering bucket is stable, and then promotes the stationarity of dewatering bucket when rotatory.

The technical scheme of the other aspect of the invention provides a washing machine, which comprises the dewatering vibration reduction structure of the washing machine.

The washing machine provided by the technical scheme of the invention comprises the dewatering vibration reduction structure of the washing machine according to any one of the technical schemes, so that the washing machine has the beneficial effects of the dewatering vibration reduction structure of the washing machine according to any one of the technical schemes, and the details are not repeated herein.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of a spin-drying tub, a spin-drying motor, and a spring assembly of a related art washing machine;

fig. 2 is a schematic perspective view illustrating a washing machine according to an embodiment of the present invention;

FIG. 3 is a schematic top view of a partial structure of the washing machine shown in FIG. 1;

3 FIG. 3 4 3 is 3 a 3 schematic 3 sectional 3 view 3 taken 3 along 3 line 3 A 3- 3 A 3 in 3 FIG. 3 3 3; 3

FIG. 5 is a schematic structural view of a spin-drying tub, a spin-drying motor, and a spring assembly of the washing machine shown in FIG. 4;

FIG. 6 is a perspective view of the spring assembly of FIG. 5;

FIG. 7 is a schematic diagram of the construction of a spring and spring case of the spring assembly of FIG. 6;

fig. 8 is a schematic view of three configurations of the spring case assembly of fig. 7.

Wherein, the corresponding relationship between the reference numbers and the component names in fig. 1 is:

1' a dehydration barrel, 2' a dehydration motor and 3' a spring assembly;

the correspondence between reference numerals and part names in fig. 2 to 8 is:

the device comprises a washing cover plate 1, a dewatering cover plate 2, a control plate 3, a 4-enclosure frame, a box body 5, a base 6, a dewatering barrel 7, a dewatering barrel 8 and dewatering motor connecting structure, a dewatering motor 9, a fixing plate 91,

spring assemblies

10, 11, 12 and 13, a spring upper pad 101, a spring 102, a spring sleeve 103 and a spring lower pad 104.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

The dehydration vibration reduction structure of a washing machine and the washing machine according to some embodiments of the present invention will be described with reference to fig. 2 to 8.

As shown in fig. 2 to 8, some embodiments of the present invention provide a dehydration vibration reduction structure of a washing machine, including: a dewatering drum 7, a dewatering motor 9 and four

spring assemblies

10, 11, 12 and 13.

Specifically, as shown in fig. 4 and 5, the dehydration motor 9 is located below the dehydration tub 7, and is connected to the dehydration tub 7 for driving the dehydration tub 7 to rotate; four

spring assemblies

10, 11, 12, 13 respectively support four corners of the dehydration motor 9, wherein two

spring assemblies

12, 11 are distributed in front and back, the other two

spring assemblies

10, 13 are distributed in left and right, each

spring assembly

10, 11, 12, 13 comprises a spring 102, and the elastic coefficient of the spring 102 in the spring assembly 11 positioned at the rear side is larger than the elastic coefficients of the springs 102 in the other three

spring assemblies

10, 12, 13.

According to the dewatering vibration reduction structure of the washing machine provided by the embodiment of the invention, four

spring assemblies

10, 11, 12 and 13 are adopted to respectively support the front, rear, left and right corners of the dewatering motor 9, so that the radial swing of the dewatering barrel 7 is reduced, and the phenomenon that the dewatering barrel 7 collides with a box body is reduced; secondly, because the dewatering barrel 7 is inclined to the rear side and then deflected clockwise when the dewatering is started, the spring constant of the rear side spring 102 of the four

spring assemblies

10, 11, 12, 13 is designed to be greater than the spring constant of the remaining springs 102, and preferably, the rear side spring 102 of the four

spring assemblies

10, 11, 12, 13 is designed to have a slightly greater spring constant than the remaining springs, thus, when the dewatering barrel 7 inclines backwards, the reinforced supporting function is realized, the dewatering barrel 7 is prevented from swinging greatly in the direction, so that the balance of the rotation of the dehydration barrel 7 is not affected when the other three

spring assemblies

10, 12 and 13 are forced to deform to a certain position, through setting up the spring 102 of different elastic coefficient, reduce vibration, promote dewatering system's anti eccentric ability to reduce the vibration of whole machine, reduce vibration noise, promote user's experience effect.

Preferably, the spring rates of the springs 102 in the other three

spring assemblies

10, 12, 13 are the same.

The elastic coefficient of the spring 102 in the other three

spring assemblies

10, 12 and 13 is the same, and the elastic coefficient of the spring 102 in the three

spring assemblies

10, 12 and 13 is slightly smaller than that of the spring 102 in the spring assembly 11 positioned at the rear side, so that on the premise that the dewatering system is ensured to have good anti-eccentricity capability, the processing complexity and the assembly difficulty of the four

spring assemblies

10, 11, 12 and 13 are reduced, the production efficiency is improved, and the production cost is reduced.

Of course, the elastic coefficient of one spring 102 in the other three

spring assemblies

10, 12, 13 may be different from the elastic coefficients of the other two springs 102, and the elastic coefficients of the springs 102 in the other three

spring assemblies

10, 12, 13 may also be designed to be different, so as to improve the anti-eccentricity capability of the dewatering system.

Preferably, the free height of the spring 102 in the spring assembly 11 located at the rear side is the same as the free height of the springs 102 in the other three

spring assemblies

10, 12, 13, i.e. the free height of the springs 102 in the four

spring assemblies

10, 11, 12, 13 is the same, to ensure the smoothness of the support of the dewatering tub 7 by the

spring assemblies

10, 11, 12, 13 when empty.

In some embodiments of the present invention, as shown in fig. 4 to 7, each

spring assembly

10, 11, 12, 13 includes a spring sleeve 103, the spring sleeve 103 is sleeved outside the spring 102, and the height of the spring sleeve 103 in the spring assembly 11 at the rear side is lower than the height of the spring sleeve 103 in the other three

spring assemblies

10, 12, 13.

Due to the arrangement of the spring sleeve 103, on one hand, the spring 102 in the spring sleeve can be ensured to be stretched or compressed and deformed along the central axis direction of the spring sleeve 103, the spring is prevented from shaking to a large extent when the dewatering barrel 7 rotates at a high speed, and the stability of supporting the dewatering barrel 7 by utilizing the spring assembly is improved; on the other hand, the maximum compression amount of the spring 102 is determined, namely, the spring 102 is compressed to the height which is flush with the spring sleeve 103 to ensure that the spring assembly 11 has good supporting effect on the dewatering barrel 7; specifically, the dewatering bucket 7 is supported mainly by the spring 102 when the dewatering bucket 7 is unloaded, and the dewatering bucket 7 is supported by the spring 102 and the spring sleeve 103 together when the dewatering bucket 7 is fully loaded.

Further, the height of the spring housing 103 in the rear spring assembly 11 is set to be lower than the height of the spring housings 103 in the other three

spring assemblies

10, 12, 13, preferably, the spring coefficient of the spring 102 in the rear spring assembly 11 is slightly larger than the rest of the spring housings 103 in the rear spring assembly 11, and the height of the spring housing 103 in the rear spring assembly 11 is slightly lower than the rest of the spring housings, so as to weaken the supporting effect of the spring housing 103 in the rear spring assembly 11 on the dewatering tub 7, and correspondingly to promote the supporting effect of the spring 102 in the rear spring assembly 11 on the dewatering tub 7 at full load, thereby promoting the energy absorbing effect of the spring 102 at the rear to not affect the balance performance when the rest of the three

spring assemblies

10, 12, 13 are deformed to a certain position by the force, that the vibration transmitted from the dewatering tub 7 to the base is weakened by setting the springs 102 with different spring coefficients and the spring housings 103 with different heights, the eccentricity resistance of the dewatering system is improved.

In one embodiment of the invention, the spring housings 103 in the other three

spring assemblies

10, 12, 13 are of the same height.

The spring sleeves 103 in the other three

spring assemblies

10, 12 and 13 are arranged to have the same height, and the height of the spring sleeve 103 in the three

spring assemblies

10, 12 and 13 is slightly greater than that of the spring sleeve 103 in the spring assembly 11 positioned at the rear side, so that on the premise of ensuring that the dewatering system has good eccentricity resistance, the processing complexity and the assembly difficulty of the four

spring assemblies

In another embodiment of the invention, the spring rate of one spring 102 of the other three

spring assemblies

10, 12, 13 is different from the spring rates of the other two springs 102, and the height of the spring housing 103 corresponding to the spring 102 with the relatively large spring rate is lower than the height of the spring housing 103 corresponding to the spring 102 with the relatively small spring rate.

Of course, the relative height of the spring housing 103 can be set according to the relative height of the spring 102 in the spring housing 103, so that the height of the spring housing 103 corresponding to the spring 102 with relatively large elastic coefficient is slightly lower than the height of the spring housing 103 corresponding to the spring 102 with relatively small elastic coefficient, and the effect of improving the eccentricity resistance of the dewatering system can also be achieved.

Of course, the spring sleeves 103 in the four

spring assemblies

10, 11, 12 and 13 may be arranged to have the same height, so as to reduce the processing complexity and the assembly difficulty of the spring assemblies.

In some embodiments of the invention, as shown in fig. 8, the cross section of the spring sleeve 103 is circular or square ring or concave-periphery; specifically, as shown in fig. 8, the cross section of the spring housing 103 shown in fig. 8a is circular, the cross section of the spring housing 103 shown in fig. 8b is square ring, and the cross section of the spring housing 103 shown in fig. 8b is concave-all-round, more specifically, concave-all-side.

Preferably, the shape of the spring sleeve 103 is designed to be concave-shaped, so that the spring sleeve 103 has uniform packing force on the spring 102 positioned at the inner side of the spring sleeve 103, the spring 102 can be compressed or extended smoothly along the axial direction of the spring sleeve 103, the supporting effect of the

spring assemblies

10, 11, 12 and 13 on the dewatering barrel 7 is further improved, the vibration transmitted to the

spring assemblies

10, 11, 12 and 13 by the dewatering barrel 7 is effectively absorbed, the vibration of the whole machine is weakened, and the vibration noise is reduced. Of course, the shape of the spring sleeve 103 can be designed into a circular ring shape, a square ring shape or other shapes, and the spring sleeve is within the protection scope of the invention as long as the spring sleeve does not depart from the design concept of the invention.

In an embodiment of the present invention, as shown in fig. 4, the dehydrating vibration reducing structure of the washing machine further includes: the base 6, four

spring assemblies

10, 11, 12, 13 are all fixed on the base 6, and the dehydration motor 9 is fixed on the four

spring assemblies

10, 11, 12, 13.

Specifically, as shown in fig. 4, 5 and 6, each

spring assembly

10, 11, 12, 13 further includes: the lower spring pad 104 is fixedly connected with the lower end of the spring 102 and fixedly connected with the base 6 in a screw fixing or buckling fixing mode, so that the

spring assemblies

10, 11, 12 and 13 are fixed on the base 6; and the upper spring pad 101 is fixedly connected with the upper ends of the springs 102 and fixedly connected with the dehydration motor 9 in a screw fixing or buckling fixing mode, so that the dehydration motor 9 is fixed on the four

spring assemblies

10, 11, 12 and 13.

Further, as shown in fig. 4 and 5, a dewatering tub and dewatering motor connecting structure 8 is installed on the dewatering motor 9, and the dewatering tub 7 is installed on the dewatering tub and dewatering motor connecting structure 8, so that the rotating force of the dewatering motor 9 is transmitted to the dewatering tub 7 through the dewatering tub and dewatering motor connecting structure 8, and the dewatering motor 9 drives the dewatering tub 7 to rotate.

In one embodiment of the present invention, as shown in fig. 5, the dehydration motor 9 includes a motor housing having a fixing plate 91 extending outward in a circumferential direction, and four

spring assemblies

10, 11, 12, 13 are fixed below the fixing plate 91.

The motor shell is provided with a fixing plate 91 which extends outwards, and the four

spring assemblies

10, 11, 12 and 13 are fixed on the fixing plate 91, so that the four

spring assemblies

10, 11, 12 and 13 are arranged far away from the motor shaft as far as possible, the foundation of the dewatering barrel 7 is stable, and the stability of the dewatering barrel 7 during rotation is further improved.

As shown in fig. 2 to 5, an embodiment of another aspect of the present invention provides a washing machine including the dewatering vibration reduction structure of the washing machine of any one of the above embodiments.

The washing machine provided by the above embodiment of the present invention includes the dewatering vibration reduction structure of the washing machine according to any of the above embodiments, so that the washing machine has the beneficial effects of the dewatering vibration reduction structure of the washing machine according to any of the above embodiments, and details are not repeated herein.

In one embodiment, as shown in fig. 4 and 5, the washing machine is a twin-tub washing machine, which includes: the device comprises a washing cover plate 1, a dewatering cover plate 2, a control plate 3, an enclosure frame 4, a box body 5, a base 6, a dewatering barrel 7, a dewatering barrel and dewatering motor connecting structure 8, a dewatering motor 9 and

spring assemblies

10, 11, 12 and 13, wherein the

spring assemblies

12 and 11 are distributed front and back, and the

spring assemblies

10 and 13 are distributed left and right; as shown in fig. 6, each

spring assembly

10, 11, 12, 13 includes: an upper spring pad 101, a spring 102, a spring housing 103, and a lower spring pad 104.

Preferably, the free heights of the springs 102 in the four

spring assemblies

10, 11, 12, 13 are the same, but the spring coefficient of the spring 102 in the spring assembly 11 located at the rear side of the whole machine is slightly larger than the spring coefficients of the remaining springs 102, while the height of the spring housing 103 in this spring assembly 11 is slightly shorter than the height of the remaining spring housing 103.

Because the dehydration barrel 7 is inclined towards the rear side firstly and then deflects along the clockwise direction when the dehydration is started, the elastic coefficient of the spring 102 in the spring assembly 11 positioned at the rear side among the four

spring assemblies

10, 11, 12 and 13 is slightly larger than that of the rest of the springs 102, the support can be strengthened when the dehydration barrel 7 inclines backwards, meanwhile, the height of the spring sleeve 103 in the spring assembly 11 is slightly smaller than that of the rest of the spring sleeves 103, and the balance performance cannot be influenced when the rest of the three

spring assemblies

10, 12 and 13 deform to a certain position under the stress, namely, the springs 102 with different elastic coefficients and the spring sleeves 103 with different heights are arranged, so that the vibration is reduced, and the eccentricity resistance of the dehydration system is improved.

In summary, the dewatering vibration damping structure of the washing machine provided by the invention is designed to have the elastic coefficient of the spring positioned at the rear side in the four spring assemblies slightly larger than that of the other springs so as to play a role of strengthening and supporting when the dewatering barrel tilts backwards and prevent the dewatering barrel from swinging greatly in the direction, and simultaneously, the height of the spring sleeve in the spring assembly positioned at the rear side is designed to be slightly lower than that of the other spring sleeves so as not to influence the rotating balance of the dewatering barrel when the other three spring assemblies deform to a certain position under stress, namely, the springs with different elastic coefficients are arranged to reduce vibration and improve the anti-eccentricity capability of the dewatering system, so that the vibration of the whole machine is reduced, the vibration noise is reduced, and the experience effect of a user is improved.

In the present invention, the terms "mounting," "connecting," "fixing," and the like are used in a broad sense, for example, "connecting" may be a fixed connection, a detachable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

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

Claims

1. A dewatering vibration damping structure of a washing machine is characterized by comprising:

a dehydration barrel (7);

the dehydration motor (9) is positioned below the dehydration barrel (7), is connected with the dehydration barrel (7) and is used for driving the dehydration barrel (7) to rotate; and

four spring assemblies (10, 11, 12, 13) respectively supporting four corners of the dewatering motor (9), wherein two of the spring assemblies (12, 11) are distributed in front and back, the other two spring assemblies (10, 13) are distributed in left and right, each spring assembly (10, 11, 12, 13) comprises a spring (102), and the elastic coefficient of the spring (102) in the spring assembly (11) positioned at the rear side is larger than the elastic coefficient of the springs (102) in the other three spring assemblies (10, 12, 13);

the spring coefficients of the springs (102) in the other three spring assemblies (10, 12, 13) are the same; or the like, or, alternatively,

the spring coefficient of one spring (102) in the other three spring assemblies (10, 12, 13) is different from the spring coefficients of the other two springs (102);

each spring assembly (10, 11, 12, 13) comprises a spring sleeve (103), the spring sleeve (103) is sleeved outside the spring (102), and the height of the spring sleeve (103) in the spring assembly (11) at the rear side is lower than the height of the spring sleeve (103) in the other three spring assemblies (10, 12, 13).

2. The dehydrating vibration reducing structure of a washing machine according to claim 1,

the free height of the spring (102) in the spring assembly (11) on the rear side is the same as the free height of the springs (102) in the other three spring assemblies (10, 12, 13).

3. The dehydrating vibration reducing structure of a washing machine according to claim 1,

the heights of the spring sleeves (103) in the other three spring assemblies (10, 12, 13) are the same; or the like, or, alternatively,

the spring coefficient of one spring (102) in the other three spring assemblies (10, 12, 13) is different from the spring coefficients of the other two springs (102), and the height of the spring sleeve (103) corresponding to the spring (102) with the relatively larger spring coefficient is lower than the height of the spring sleeve (103) corresponding to the spring (102) with the relatively smaller spring coefficient.

4. The dehydrating vibration reducing structure of a washing machine according to claim 1,

the cross section of the spring sleeve (103) is in a circular or square ring shape or a special shape with the periphery concave inwards.

5. The dehydrating vibration damping structure of a washing machine as claimed in any one of claims 1 to 4, further comprising:

the base (6), four spring assembly (10, 11, 12, 13) all fix on base (6), dewatering motor (9) are fixed four on spring assembly (10, 11, 12, 13).

6. The dehydrating vibration reducing structure of a washing machine as claimed in claim 5, wherein each of the spring assemblies (10, 11, 12, 13) further comprises:

the upper spring pad (101) is fixedly connected with the upper end of the spring (102) and is fixedly connected with the dewatering motor (9); and

and the lower spring pad (104) is fixedly connected with the lower end of the spring (102) and is fixedly connected with the base (6).

7. The dehydrating vibration reducing structure of a washing machine according to any one of claims 1 to 4,

the dewatering motor (9) comprises a motor shell, the motor shell is provided with a fixing plate (91) which extends outwards along the circumferential direction, and the four spring assemblies (10, 11, 12 and 13) are all fixed on the fixing plate (91).

8. A washing machine characterized by comprising the dehydrating vibration reducing structure of the washing machine according to any one of claims 1 to 7.