CN106702657B

CN106702657B - Drum washing machine

Info

Publication number: CN106702657B
Application number: CN201611028446.0A
Authority: CN
Inventors: 戴彪; 张大龙; 杨坚; 宋爱; 程海松
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2016-11-18
Filing date: 2016-11-18
Publication date: 2023-07-14
Anticipated expiration: 2036-11-18
Also published as: CN106702657A

Abstract

The invention provides a drum washing machine. The drum washing machine comprises a shell, an outer drum and an inner drum, wherein the outer drum and the inner drum are arranged in the shell, and the inner drum is rotatably arranged in the outer drum. The drum washing machine further comprises a magnetic body and a suspension winding, wherein the magnetic body is arranged on the inner drum, the suspension winding is arranged on the shell, and the suspension winding is used for generating a first magnetic field to act on the magnetic body so as to suspend the inner drum. When in use, the levitation winding is powered on, so that the levitation winding generates a first magnetic field. The first magnetic field acts on the magnetic body, and the magnetic body lifts the inner cylinder to suspend the inner cylinder. When the inner cylinder rotates, the balance of the inner cylinder is adjusted by adjusting the magnetic field of the suspension winding. Therefore, the components such as a damping spring, a damping counterweight and the like are omitted, and the quality of the drum washing machine is reduced. On the other hand, the damping spring is omitted, so that the problem that the damping spring is easy to damage in the long-time use process of the drum washing piece can be avoided.

Description

Drum washing machine

Technical Field

The invention relates to the technical field of washing machines, in particular to a drum washing machine.

Background

According to the different washing principles, the washing machines can be classified into pulsator type, pulsator type and drum type washing machines. While drum-type washing machines are becoming increasingly popular with families in China due to their unique advantages (high washing ratio, low water consumption and low power consumption). Drum washing machines originate in europe and the laundry method is designed to mimic the principle of rod hammering laundry. The drum washing machine is composed of stainless steel inner barrel, mechanical program controller, casing protected by phosphating, electrophoresis and spraying, and several heavy cement blocks for balancing the huge centrifugal force generated by drum rotation.

The washing barrels of the drum washing machine are arranged horizontally, and the drum washing machine is required to rotate vertically around a horizontal shaft in a three-dimensional mode during operation. The center of mass is constantly reciprocated up and down with respect to a certain horizontal plane, so that the gravity acceleration is considered in addition to the vibration caused by the load eccentricity. The vibration transferred from the outer cylinder to the box body is reduced by adopting a dynamic balancing method (four suspenders are used for balancing eccentric loads on four corner walls of the box) and a rigid balancing method (a balancing weight is added on the outer cylinder, and a hanging device of an upper suspension spring and a lower damping support is added).

At present, the driving mode of the inner cylinder of the washing machine on the market mainly comprises three modes of belt pulley driving, gear driving and motor direct driving, and the inner cylinder is hung with a damping spring and a damping counterweight to increase the stability of the inner cylinder during rotation.

The washing machine is large in mass due to the damping springs and the damping counterweights, so that the washing machine is inconvenient to move and carry, and meanwhile, the damping springs of the washing piece are easy to damage in the long-time use process.

Disclosure of Invention

The invention mainly aims to provide a drum washing machine, which solves the problems that the drum washing machine in the prior art is overlarge in quality and inconvenient to carry.

In order to achieve the above object, the present invention provides a drum washing machine, comprising a housing, an outer drum and an inner drum disposed in the housing, the inner drum rotatably mounted in the outer drum, a magnetic body and a suspension winding, the magnetic body mounted on the inner drum; a levitation winding is mounted on the outer barrel and/or the housing for generating a first magnetic field acting on the magnetic body to levitate the inner barrel.

Further, the drum washing machine further includes a rotating winding mounted on the outer tub and/or the housing, the rotating winding for generating a second magnetic field to act on the magnetic body to rotate the inner tub.

Further, an inlet is formed at one end of the inner cylinder, a first mounting portion is formed at the other end of the inner cylinder opposite to the inlet, the magnetic body comprises a first magnetic body, the first magnetic body is mounted on the first mounting portion, the levitation winding comprises a first levitation winding, and the first levitation winding is mounted on the housing at a position corresponding to the first mounting portion.

Further, the rotating winding includes a first rotating winding mounted on the housing at a position corresponding to the first mounting portion.

Further, a second installation part is formed at the inlet, the magnetic body further comprises a second magnetic body, the second magnetic body is installed on the second installation part, the levitation winding comprises a second levitation winding, and the second levitation winding is installed on the shell at a position corresponding to the second installation part.

Further, the rotating winding further includes a second rotating winding mounted on the housing at a position corresponding to the second mounting portion.

Further, a winding mounting portion is formed on the housing, and the levitation winding and/or the rotation winding are mounted on the winding mounting portion.

Further, the plurality of winding mounting portions are provided at intervals in the circumferential direction of the housing.

Further, a plurality of magnetic bodies are arranged on the inner cylinder at intervals.

Further, the inner cylinder is mounted on the outer cylinder by a bearing.

When the technical scheme of the invention is applied, the levitation winding is powered on, so that the levitation winding generates a first magnetic field. The first magnetic field acts on the magnetic body, and the magnetic body lifts the inner cylinder to suspend the inner cylinder. When the inner cylinder rotates, the balance of the inner cylinder is adjusted by adjusting the magnetic field of the suspension winding. Therefore, the components such as a damping spring, a damping counterweight and the like are omitted, and the quality of the drum washing machine is reduced. On the other hand, the damping spring is omitted, so that the problem that the damping spring is easy to damage in the long-time use process of the drum washing piece can be avoided.

In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.

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 invention. In the drawings:

fig. 1 illustrates a side view of a first embodiment of a drum washing machine according to the present invention; and

fig. 2 shows a schematic front view of a first embodiment of the drum washing machine of fig. 1.

Wherein the above figures include the following reference numerals:

10. a housing; 11. a winding mounting portion; 20. an outer cylinder; 30. an inner cylinder; 31. an inlet; 32. a first mounting portion; 33. a second mounting portion; 40. a magnetic body; 50. a suspension winding; 60. rotating the winding; 70. and (3) a bearing.

Detailed Description

It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.

In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present invention and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of operation in other environments. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In the description of the present invention, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present invention; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Fig. 1 and 2 illustrate a first embodiment of the drum washing machine of the present invention, which includes a housing 10, and an outer tub 20 and an inner tub 30 provided in the housing 10, the inner tub 30 being rotatably installed in the outer tub 20. The drum washing machine further includes a magnetic body 40 mounted on the inner tub 30, and a levitation winding 50 mounted on the housing 10, the levitation winding 50 for generating a first magnetic field acting on the magnetic body 40 to levitate the inner tub 30.

In use, the levitation winding 50 is powered on to cause the levitation winding 50 to generate a first magnetic field. The first magnetic field acts on the magnetic body 40, and the magnetic body 40 lifts the inner tube 30, so that the inner tube 30 is suspended. The balance of the inner barrel 30 is adjusted by adjusting the magnetic field of the levitation winding 50 as the inner barrel 30 rotates. Therefore, the components such as a damping spring, a damping counterweight and the like are omitted, and the quality of the drum washing machine is reduced. On the other hand, the damping spring is omitted, so that the problem that the damping spring is easy to damage in the long-time use process of the drum washing piece can be avoided.

As shown in fig. 1, in the first embodiment, the drum washing machine further includes a rotating winding 60, the rotating winding 60 is mounted on the casing 10, and the rotating winding 60 generates a second magnetic field after being energized. The second magnetic field acts on the magnetic body 40 to drive the inner cylinder 30 to rotate. Thus, by adjusting the second magnetic field generated by the rotating winding 60, the magnetic body 40 on the inner cylinder 30 can also drive the inner cylinder 30 to rotate. When the magnetic levitation device is used, the levitation winding 50 and the rotation winding 60 are respectively adjusted, the first magnetic field and the second magnetic field are combined into a whole, a decoupling method is sought by researching the coupling condition of rotation torque and levitation force, and the rotation of the inner cylinder 30 and the stable levitation of the inner cylinder 30 are independently controlled.

As shown in fig. 2, an inlet 31 is formed at one end of the inner tube 30, and a first mounting portion 32 is formed at the other end of the inner tube 30 opposite to the inlet 31. The magnetic body 40 includes a first magnetic body that is mounted on the first mounting portion 32. The levitated winding 50 includes a first levitation winding mounted on the housing 10 at a position corresponding to the first mounting section 32. The first levitation winding is configured to generate a first magnetic field to act on the first magnetic body of the first mounting portion 32, so that the first magnetic body lifts the inner cylinder 30 to levitate it.

In the first embodiment, the first magnetic body is mounted on the circumferential outer side of the first mounting portion 32, and the first levitation winding is mounted on the circumferential inner side of the housing.

As an alternative embodiment, the first magnetic body may also be mounted on the circumferential inner side of the first mounting portion 32.

As an alternative embodiment, the first levitation winding may also be mounted circumferentially outward of the housing.

As shown in fig. 2, the rotating winding 60 includes a first rotating winding that is mounted on the housing 10 at a position corresponding to the first mounting portion 32. The first rotating winding is used for generating a second magnetic field, and the second magnetic field acts on the first magnetic body on the first mounting portion 32, so that the first magnetic body drives the inner cylinder 30 to rotate.

In a solution of the first embodiment, the first rotating winding is mounted on the circumferential inner side of the housing.

As an alternative embodiment, the first rotating winding may also be mounted circumferentially outside the housing.

As shown in fig. 2, in the first embodiment, the second mounting portion 33 is formed at the inlet 31, and the magnetic body 40 further includes a second magnetic body mounted on the second mounting portion 33. The levitation winding 50 includes a second levitation winding mounted on the housing 10 at a position corresponding to the second mounting part 33. The second levitation winding is configured to generate a first magnetic field that acts on the second magnetic body on the second mounting portion 33 to cause the second magnetic body to levitate the inner cylinder 30.

In the first embodiment, the second magnetic body is mounted on the circumferential outer side of the second mounting portion 33, and the second levitation winding is mounted on the circumferential inner side of the housing 10.

As an alternative embodiment, the second magnetic body may also be mounted on the circumferential inner side of the second mounting portion 33 or embedded in the second mounting portion 33.

As an alternative embodiment, the second levitation winding may also be mounted circumferentially outward of the housing.

As shown in fig. 2, in the solution of the first embodiment, the rotating winding 60 further includes a second rotating winding, and the second rotating winding is mounted on the housing 10 at a position corresponding to the second mounting portion 33. The second rotating winding is used for generating a second magnetic field, and the second magnetic field acts on the second magnetic body on the second mounting portion 33, so that the second magnetic body drives the inner cylinder 30 to rotate.

In the technical solution of the first embodiment, the first suspension winding and the second suspension winding implement magnetic suspension support on two ends of the inner cylinder 30, so that the inner cylinder 30 can suspend more stably. Meanwhile, the first rotating winding and the second rotating winding can be adopted to drive the inner cylinder 30 to rotate more effectively, so that the power of the drum washing machine is increased.

As shown in fig. 1, a winding mounting portion 11 is formed on the housing 10, and the levitation winding 50 and the rotation winding 60 are mounted on the winding mounting portion 11.

As an alternative embodiment, only the levitation winding 50 may be mounted on the winding mounting portion 11, and the rotation winding 60 may be mounted on other portions of the housing 10, or only the rotation winding 60 may be mounted on the winding mounting portion 11, and the levitation winding 50 may be mounted on other portions of the housing 10.

As shown in fig. 1, the plurality of winding mounting portions 11 are provided, and the plurality of winding mounting portions 11 are provided at intervals in the circumferential direction of the case 10. As a preferred embodiment, a plurality of winding mounting parts 11 are provided at equal intervals.

As shown in fig. 1, in the first embodiment, a plurality of magnetic bodies 40 are provided, and a plurality of magnetic bodies 40 are mounted on the inner tube 30 at intervals. As a preferred embodiment, the plurality of magnetic bodies 40 are disposed at equal intervals on the circumferential outer side of the inner tube 30. In addition, as an alternative embodiment, the magnetic bodies 40 may be equally spaced apart from the inner cylinder 30.

As shown in fig. 2, the inner cylinder 30 is mounted on the outer cylinder 20 by bearings 70 to reduce friction as the inner cylinder 30 rotates relative to the outer cylinder 20.

The drum washing machine of the present invention further includes a second embodiment, which is not shown in the drawings, which includes a housing 10, and an outer tub 20 and an inner tub 30 provided in the housing 10, the inner tub 30 being rotatably installed in the outer tub 20. The drum washing machine further includes a magnetic body 40 mounted on the inner tub 30, and a levitation winding 50 mounted on the outer tub 20, the levitation winding 50 for generating a first magnetic field acting on the magnetic body 40 to levitate the inner tub 30. The second embodiment differs from the first embodiment in that the levitation winding 50 is mounted on the outer cylinder 20.

Similarly, when the levitation winding 50 is powered on, the levitation winding 50 is caused to generate a first magnetic field. The first magnetic field acts on the magnetic body 40, and the magnetic body 40 lifts the inner tube 30, so that the inner tube 30 is suspended. The balance of the inner barrel 30 is adjusted by adjusting the magnetic field of the levitation winding 50 as the inner barrel 30 rotates. Therefore, the components such as a damping spring, a damping counterweight and the like are omitted, and the quality of the drum washing machine is reduced.

In the second embodiment, the drum washing machine further includes a rotating winding 60, and the rotating winding 60 is mounted on the outer tub 20. Likewise, the rotating winding 60 generates a second magnetic field when energized. The second magnetic field acts on the magnetic body 40 to drive the inner cylinder 30 to rotate. Thus, by adjusting the second magnetic field generated by the rotating winding 60, the magnetic body 40 on the inner cylinder 30 can also drive the inner cylinder 30 to rotate. When the magnetic levitation device is used, the levitation winding 50 and the rotation winding 60 are respectively adjusted, the first magnetic field and the second magnetic field are combined into a whole, a decoupling method is sought by researching the coupling condition of rotation torque and levitation force, and the rotation of the inner cylinder 30 and the stable levitation of the inner cylinder 30 are independently controlled.

The drum washing machine of the present invention further includes a third embodiment, which is not shown in the drawings, which includes a housing 10, and an outer tub 20 and an inner tub 30 provided in the housing 10, the inner tub 30 being rotatably installed in the outer tub 20. The drum washing machine further includes a magnetic body 40 and a levitation winding 50, the magnetic body 40 is mounted on the inner drum 30, the levitation winding 50 is mounted on the outer drum 20 and the housing 10, and the levitation winding 50 is used to generate a first magnetic field acting on the magnetic body 40 to levitate the inner drum 30. The second embodiment differs from the first embodiment in that the levitation winding 50 is mounted on both the outer cylinder 20 and the housing 10.

In the third embodiment, the drum washing machine further includes a rotating winding 60, and the rotating winding 60 is mounted on the tub 20 and the housing 10. Likewise, the rotating winding 60 generates a second magnetic field when energized. The second magnetic field acts on the magnetic body 40 to drive the inner cylinder 30 to rotate. Thus, by adjusting the second magnetic field generated by the rotating winding 60, the magnetic body 40 on the inner cylinder 30 can also drive the inner cylinder 30 to rotate. When the magnetic levitation device is used, the levitation winding 50 and the rotation winding 60 are respectively adjusted, the first magnetic field and the second magnetic field are combined into a whole, a decoupling method is sought by researching the coupling condition of rotation torque and levitation force, and the rotation of the inner cylinder 30 and the stable levitation of the inner cylinder 30 are independently controlled.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A drum washing machine comprising a housing (10), an outer drum (20) and an inner drum (30) disposed in the housing (10), the inner drum (30) being rotatably mounted in the outer drum (20), characterized in that the drum washing machine further comprises:

a magnetic body (40) mounted on the inner cylinder (30);

a levitation winding (50) mounted on the housing (10), the levitation winding (50) for generating a first magnetic field acting on the magnetic body (40) to levitate the inner cylinder (30);

a rotating winding (60) mounted on the housing (10), the rotating winding (60) being configured to generate a second magnetic field acting on the magnetic body (40) to rotate the inner cylinder (30);

a winding mounting part (11) is formed on the shell (10), and the suspension winding (50) and the rotation winding (60) are mounted on the winding mounting part (11);

an inlet (31) is formed at one end of the inner cylinder (30), a first mounting part (32) is formed at the other end of the inner cylinder (30) opposite to the inlet (31), the magnetic body (40) comprises a first magnetic body, the first magnetic body is mounted on the first mounting part (32), the suspension winding (50) comprises a first suspension winding, and the first suspension winding is mounted on the shell (10) at a position corresponding to the first mounting part (32);

the rotating winding (60) comprises a first rotating winding which is mounted on the housing (10) at a position corresponding to the first mounting portion (32);

a second mounting part (33) is formed at the inlet (31), the magnetic body (40) further comprises a second magnetic body, the second magnetic body is mounted on the second mounting part (33), the levitation winding (50) comprises a second levitation winding, and the second levitation winding is mounted on the housing (10) at a position corresponding to the second mounting part (33);

the rotary winding (60) further includes a second rotary winding mounted on the housing (10) at a position corresponding to the second mounting portion (33);

the number of the winding installation parts (11) is plural, and the winding installation parts (11) are arranged at intervals in the circumferential direction of the shell (10);

the number of the magnetic bodies (40) is plural, and the plurality of the magnetic bodies (40) are mounted on the inner cylinder (30) at intervals.

2. The drum washing machine as claimed in claim 1, characterized in that the inner drum (30) is mounted on the outer drum (20) by means of bearings (70).