CN207958781U

CN207958781U - Vibration reduction structure and washing machine

Info

Publication number: CN207958781U
Application number: CN201721512942.3U
Authority: CN
Inventors: 黄浩钦; 黄方艺; 杨阳; 徐义伟; 陈省
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2017-11-14
Filing date: 2017-11-14
Publication date: 2018-10-12
Anticipated expiration: 2027-11-14

Abstract

The utility model discloses a damping structure and washing machine, this structure includes: a first direction electromagnetic damping layer (1) and a second direction electromagnetic damping layer (2); the first-direction electromagnetic vibration reduction layer (1) is used for carrying out first-direction active vibration reduction treatment on first-direction vibration when the equipment to be subjected to vibration reduction generates the first-direction vibration in the operation process; and the second direction electromagnetic vibration reduction layer (2) is used for carrying out second direction active vibration reduction treatment on the second direction vibration when the equipment to be subjected to vibration reduction generates second direction vibration in the operation process. The utility model discloses a scheme can overcome among the prior art vibration noise big, easy whole shimmy, user experience defect such as poor, realizes that the vibration noise is little, difficult whole shimmy and user experience good beneficial effect.

Description

Vibration reduction structure and washing machine

Technical Field

The utility model belongs to the technical field of the damping, concretely relates to damping structure and washing machine especially relate to a washing machine's damping top cap, have the washing machine of this damping top cap and a washing machine initiative damping method based on magnetic current body dynamic adjustment technique.

Background

The washing machine can utilize electric energy to generate mechanical action to wash clothes, brings great convenience to life of people, but the problem of vibration noise of the washing machine is gradually one of the key concerns of washing machine developers and users. With the improvement of the living standard in recent years, people have higher requirements on the experience degree and the comfort of household appliances, and the requirements also bring greater challenges to the vibration reduction and noise reduction design of the products.

Although the developers of the washing machine have done a lot of work in the aspects of dynamic balance of the inner cylinder and the outer cylinder, vibration reduction and noise reduction of the box body, vibration reduction of the base and the like in recent years, a lot of problems caused by vibration noise exist, for example, the problems of the washing machine walking, foundation strength failure, torsion deformation of the box body and the like caused by the integral vibration of the washing machine are further controlled, and the simple passive vibration reduction is difficult to meet higher vibration reduction requirements.

In the prior art, the defects of high vibration noise, easy overall shimmy, poor user experience and the like exist.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to above-mentioned defect, provide a damping structure and washing machine to there is the poor problem of damping effect in the passive form damping mode of washing machine among the solution prior art, reach the effect that promotes the damping effect.

The utility model provides a vibration damping structure, include: a first direction electromagnetic damping layer and a second direction electromagnetic damping layer; the first-direction electromagnetic vibration reduction layer is used for carrying out first-direction active vibration reduction treatment on the first-direction vibration when the equipment to be subjected to vibration reduction generates first-direction vibration in the operation process; and the second direction electromagnetic vibration reduction layer is used for carrying out second direction active vibration reduction treatment on the second direction vibration when the equipment to be subjected to vibration reduction generates second direction vibration in the operation process.

Optionally, the number of the first direction electromagnetic damping layers is more than one; and/or the number of the second direction electromagnetic damping layers is more than one; and/or one second-direction electromagnetic damping layer is stacked above or below one first-direction electromagnetic damping layer; and/or an included angle between the first direction electromagnetic vibration reduction layer and the second direction electromagnetic vibration reduction layer is larger than 0 degree and smaller than or equal to 90 degrees.

Optionally, the method further comprises: a middle partition plate; the middle partition plate is arranged between the first-direction electromagnetic damping layer and the second-direction electromagnetic damping layer.

Optionally, the method further comprises: a housing; the shell can form an accommodating cavity; the first direction electromagnetic vibration reduction layer and the second direction electromagnetic vibration reduction layer are contained in the containing cavity.

Optionally, when the vibration damping structure further comprises a middle partition plate, the middle partition plate is also accommodated in the accommodating cavity.

Optionally, the middle partition plate and the outer shell are both made of plastic.

Optionally, wherein the first direction electromagnetic damping layer comprises: a first direction first electromagnet and a first direction second electromagnet; the first electromagnet in the first direction and the second electromagnet in the first direction are arranged at intervals and used for forming a first magnetic field force with the magnetic field direction opposite to the vibration direction of the vibration in the first direction when the vibration to be damped in the first direction is generated in the running process of the equipment to be damped so as to perform first reverse balance treatment on the vibration in the first direction through the first magnetic field force; and/or, the second directional electromagnetic damping layer comprises: a first electromagnet in a second direction and a second electromagnet in the second direction; the first electromagnet in the second direction and the second electromagnet in the second direction are arranged at intervals and used for forming a second magnetic field force with the magnetic field direction opposite to the vibration direction of the vibration in the second direction when the vibration in the second direction is generated in the running process of the equipment to be damped, so that the vibration in the second direction is subjected to second reverse balance treatment through the second magnetic field force.

Optionally, wherein the first direction electromagnetic damping layer further includes: a first direction magnetic fluid; the first-direction magnetic fluid is distributed between the first-direction first electromagnet and the first-direction second electromagnet and used for moving in a direction opposite to the vibration direction of the first-direction vibration under the driving of the first magnetic field force so as to strengthen the first reverse balance treatment; and/or the second direction electromagnetic damping layer further comprises: a second directional magnetic fluid; and the second direction magnetic fluid is distributed between the second direction first electromagnet and the second direction second electromagnet and is used for moving in the direction opposite to the vibration direction of the second direction vibration under the driving of the second magnetic field force so as to strengthen the second reverse balance treatment.

Optionally, the method further comprises: a controller, and a first displacement sensor and/or a second displacement sensor; the first displacement sensor is used for acquiring first vibration displacement of the equipment to be damped for damping in the first direction; and/or the second displacement sensor is used for acquiring second vibration displacement of the equipment to be damped to generate vibration in the second direction; the controller is used for increasing the first input current of the first-direction electromagnetic vibration damping layer if the first vibration displacement is larger than or equal to the upper limit of a first set displacement; if the first vibration displacement is smaller than the lower limit of the first set displacement, reducing the first input current of the first-direction electromagnetic vibration reduction layer; changing the direction of the first input current to enable the first-direction electromagnetic vibration reduction layer to form a first magnetic field force opposite to the vibration direction of the first-direction vibration; and/or, the second input current of the second direction electromagnetic vibration damping layer is increased if the second vibration displacement is greater than or equal to the upper limit of a second set displacement; if the second vibration displacement is smaller than the lower limit of the second set displacement, reducing a second input current of the electromagnetic vibration reduction layer in the second direction; and changing the direction of the second input current so that the second directional electromagnetic vibration reduction layer forms a second magnetic field force opposite to the vibration direction of the second directional vibration.

Optionally, the method further comprises: at least one of a signal processing unit and a differential output unit; the signal processing unit is configured to convert at least one of the first vibration displacement acquired by the first displacement sensor and the second vibration displacement acquired by the second displacement sensor into a corresponding electrical signal and transmit the electrical signal to the controller; the differential output unit is used for differentially outputting the first input current regulated by the controller to the first-direction electromagnetic damping layer; and/or differentially outputting the second input current regulated by the controller to the second direction electromagnetic damping layer.

Optionally, the method further comprises: an amplifier; the amplifier is used for amplifying the first input current regulated by the controller and outputting the amplified first input current to the first-direction electromagnetic vibration damping layer; and/or amplifying the second input current regulated by the controller and outputting the amplified second input current to the second direction electromagnetic vibration damping layer; when the vibration damping structure further comprises a differential output unit, the amplifier is further used for amplifying the first input current differentially output by the differential output unit and outputting the amplified first input current to the first-direction electromagnetic vibration damping layer; and/or amplifying the second input current differentially output by the differential output unit and outputting the amplified second input current to the second direction electromagnetic damping layer.

Optionally, wherein the first displacement sensor is disposed on one side of the first direction electromagnetic damping layer; and/or the second displacement sensor is arranged on one side of the second direction electromagnetic damping layer in the second direction; and/or when the first-direction electromagnetic vibration reduction layer comprises a first-direction first electromagnet, a first-direction second electromagnet and a first-direction magnetic fluid, the first input current is a current which is input to the first-direction first electromagnet and the first-direction second electromagnet, is used for generating a first electromagnetic force, and can enable the first-direction magnetic fluid to carry out convection motion between the first-direction first electromagnet and the first-direction second electromagnet; and/or when the second-direction electromagnetic vibration reduction layer comprises a second-direction first electromagnet, a second-direction second electromagnet and a second-direction magnetic fluid, the second input current is a current which is input to the second-direction first electromagnet and the second-direction second electromagnet, is used for generating a second electromagnetic force, and can enable the second-direction magnetic fluid to carry out convection motion between the second-direction first electromagnet and the second-direction second electromagnet; and/or when the number of the first direction electromagnetic damping layers is more than one, the number of the first displacement sensors is consistent with that of the first direction electromagnetic damping layers; each first displacement sensor is used for acquiring corresponding first vibration displacement of each first-direction electromagnetic vibration reduction layer; the control of the first input current of the first directional electromagnetic damping layer by the controller includes: according to each first vibration displacement, independently controlling the corresponding first input current of each first-direction electromagnetic vibration reduction layer; and/or when the number of the second direction electromagnetic damping layers is more than one, the number of the second displacement sensors is consistent with that of the second direction electromagnetic damping layers; each second displacement sensor is used for acquiring corresponding second vibration displacement of each second-direction electromagnetic vibration reduction layer; the control of the second input current of the second directional electromagnetic damping layer by the controller includes: and according to each second vibration displacement, independently controlling the corresponding second input current of each second-direction electromagnetic vibration reduction layer.

With above-mentioned damping structure phase-match, the utility model discloses another aspect provides a washing machine, include: the vibration damping structure described above; the vibration reduction structure is arranged on the top of the body structure of the washing machine and is used as a top cover of the washing machine.

The utility model discloses a scheme is through using the washing machine top cap as the carrier, divide into upper strata and lower floor's damping district, and upper and lower floor realizes respectively around the washing machine to the damping and control to the damping, can realize the washing machine to the left and right side vibration independent control, also can two-way regulation and control in coordination simultaneously in order to control washing machine torsional oscillation problem, and then effectively solve the washing machine complete machine through complete machine vibration dynamic balance and rock and easily arouse washing machine "walk" problem, also can effectively solve the whole torsional pendulum problem of washing machine.

Further, the utility model discloses a scheme is through adopting vibration displacement sensor real time monitoring washing machine vibration signal and feeding back to the controller, and the controller is according to vibration condition dynamic adjustment electromagnetic field distribution to change the magnetic current body motion circumstances and realize washing machine initiative damping, and then when the vibration of initiative balance washing machine, also can reduce vibration noise energy and heavily propagate to ground and air, improved the travelling comfort of user's family environment to a certain extent.

Further, the utility model discloses a scheme, through the active control based on magnetic current body dynamic adjustment technique realizes washing machine overall vibration, real time monitoring washing machine is whole around and to the vibration displacement about reaching, and can convert vibration displacement signal conversion to electric signal feedback to the controller, the controller can be adjusted in real time and controlling means magnetic field distribution, and then change the magnetic current body motion and play dynamic reverse balance's effect to washing machine vibration, can realize that washing machine is whole not walk about and even running, can effectively avoid lower margin contact department fatigue failure and box torsional pendulum to warp, can reduce the propagation of vibration energy to ground and air all around simultaneously, effectively promote user experience degree and environmental comfort.

Therefore, the utility model discloses a scheme is through setting up two-layer magnetic current body damping layer to adjust the magnetic field distribution on corresponding magnetic current body damping layer, carry out reverse balance with the vibration to washing machine equidirectional, solve among the prior art washing machine's passive form damping mode and have the poor problem of damping effect, thereby, overcome among the prior art vibration noise big, easy whole shimmy, the poor defect of user experience, realize that vibration noise is little, difficult whole shimmy and the good beneficial effect of user experience.

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

The technical solution of the present invention is further described in detail by the accompanying drawings and examples.

Drawings

FIG. 1 is a schematic structural diagram of a top cover of an original washing machine;

fig. 2 is a schematic structural diagram of an embodiment of the damping structure of the present invention (i.e., a simple structural diagram of the novel magnetic fluid damping top cover);

fig. 3 is a schematic structural diagram of an embodiment of the assembly structure of the vibration damping structure and the washing machine of the present invention (i.e. a front projection view of the vibration damping top cover of the washing machine);

fig. 4 is a schematic structural view of another embodiment of the assembly structure of the vibration damping structure and the washing machine of the present invention (i.e. a side projection view of the vibration damping top cover of the washing machine);

fig. 5 is a schematic view of the working principle of an embodiment of the damping structure of the present invention (i.e., a plan view of the damping top cover and a working principle diagram of magnetic fluid damping).

With reference to the accompanying drawings, the embodiments of the present invention have the following reference numerals:

1-a first direction electromagnetic damping layer (such as an upper magnetic fluid damping layer, a front and back direction damping layer, etc.); 11-first direction first electromagnet (e.g., front side electromagnet); 12-a first direction second electromagnet (e.g., a rear side electromagnet); 13-first direction magnetic fluid; 14-a first displacement sensor (e.g., displacement sensor B); 2-second direction electromagnetic damping layer (for example: lower magnetofluid damping layer, left and right direction damping layer, etc.); 21-a second direction first electromagnet (for example: left side electromagnet); 22-a second direction second electromagnet (e.g., a rear side electromagnet); 23-a second direction magnetic fluid; 24-a second displacement sensor (e.g., displacement sensor A); 3-a middle partition plate; 4-housing (i.e. top cover outer cavity); 5-vibration damping top cover; 61-washing machine front; 62-washing machine side; 71-a first anchor (e.g., a left anchor); 72-second leg (e.g., right leg); 73-a third foot (e.g. a front foot); 74-fourth anchor (e.g., rear anchor); 8-a signal processing unit; 9-a controller; 101-a differential output unit; 102-amplifier.

Detailed Description

To make the purpose, technical solution and advantages of the present invention clearer, the following will combine the embodiments of the present invention and the corresponding drawings to clearly and completely describe the technical solution of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

With the rapid development of the technological level in recent years, the real-time regulation and control active vibration reduction technology has been realized and has good application in many fields, such as the application of technologies of air suspension, magnetic suspension and the like in the vibration reduction of trains and bearings. The magnetic fluid is a new-form substance, and can present the common characteristic attribute of Newtonian fluid and plastic fluid under the action of a magnetic field, which brings great breakthrough to the active vibration reduction technology. The utility model discloses need further solve the vibration noise problem that washing machine faced at present with the help of the dynamic adjustment technique of magnetic current body.

According to the utility model discloses an embodiment provides a damping structure, as shown in figure 2 the utility model discloses a structural schematic of an embodiment of damping structure. The vibration damping structure may include: a first direction electromagnetic damping layer 1 and a second direction electromagnetic damping layer 2.

In an optional example, the first-direction electromagnetic damping layer 1 (for example, a front-back damping layer of a washing machine) may be configured to perform a first-direction active damping treatment on first-direction vibration when the first-direction vibration is generated during operation of a device to be damped.

Optionally, the first-direction electromagnetic damping layer 1 may include: a first direction first electromagnet 11 and a first direction second electromagnet 12.

The first direction first electromagnet 11 and the first direction second electromagnet 12 are arranged at an interval, and may be configured to form a first magnetic field force having a magnetic field direction opposite to a vibration direction of the first direction vibration when the device to be damped vibrates in the first direction during operation, so as to perform a first reverse balance process on the first direction vibration through the first magnetic field force.

For example: the first-direction first electromagnet 11 may be a front-side electromagnet when the first direction is the front-back direction. The first-direction second electromagnet 12 may be a rear-side electromagnet when the first direction is the front-rear direction. For example: the first-direction first electromagnet 11 and/or the first-direction second electromagnet 12 may have various shapes such as a bar magnet, a circular magnet, and a block magnet. For example: the first-direction first electromagnet 11 and the first-direction second electromagnet 12 may be provided in parallel.

Therefore, a pair of first electromagnets is formed by the first electromagnets in the first direction and the second electromagnets in the first direction which are arranged at intervals, a first magnetic field force is generated, the vibration in the first direction is reversely balanced, the vibration reduction mode is simple and convenient, and the vibration reduction effect is good.

Optionally, the first-direction electromagnetic damping layer 1 may further include: a first direction magnetic fluid 13.

The first-direction magnetic fluid 13 is distributed between the first-direction first electromagnet 11 and the first-direction second electromagnet 12, and may be configured to move in a direction opposite to a vibration direction of the first-direction vibration under the driving of the first magnetic field force, so as to enhance the first reverse balance processing.

For example: electromagnetic field technology can be introduced on the top cover of the washing machine and used to drive the internal magnetic fluid movement. In particular, the mass space distribution change of the magnetic fluid under the drive of the magnetic field and the balance force generated by the magnetic fluid on the washing machine can be utilized to balance the vibration of the washing machine.

For example: in order to solve the problem of the whole shimmy of the washing machine more effectively, an active vibration reduction method capable of reducing the shimmy of the upper end of the washing machine and a vibration reduction top cover thereof are provided, and the vibration reduction method and the top cover are mainly realized based on the dynamic regulation of the magnetofluid.

Therefore, the first magnetic field force drives the magnetic fluid to move in the first direction, the balancing force for reversely balancing the vibration in the first direction can be enhanced, and the efficiency and the effect of reversely balancing the vibration in the first direction are improved.

In an optional example, the second-direction electromagnetic damping layer 2 (for example, a left-right damping layer of a washing machine) may be configured to perform a second-direction active damping treatment on the second-direction vibration when the device to be damped generates the second-direction vibration during operation.

The active vibration reduction treatment in the first direction and the active vibration reduction treatment in the second direction can realize the active control of the vibration of equipment to be subjected to vibration reduction, such as a washing machine. The active control can be based on the magnetofluid dynamic regulation technology to realize the active control of the whole vibration of the washing machine. For example: when the vibration of the washing machine is actively balanced, the heavy propagation of vibration noise energy to the ground and the air can be reduced, and the comfort of the family environment of a user is improved to a certain extent.

For example: the simple structure diagram of the magnetic fluid vibration reduction top cover of the washing machine is shown in fig. 2, and the simple structure diagram is mainly divided into an upper magnetic fluid vibration reduction layer and a lower magnetic fluid vibration reduction layer (for example, a first direction electromagnetic vibration reduction layer 1, a second direction electromagnetic vibration reduction layer 2 and the like), wherein the upper layer of the top cover is a front-back vibration reduction layer (for example, the first direction electromagnetic vibration reduction layer 1) of the washing machine, and the lower layer is a left-right vibration reduction layer (for example, the second direction electromagnetic vibration reduction layer 2) of the washing machine. The active vibration reduction method and the vibration reduction top cover device can effectively balance the whole vibration of the washing machine, solve the problem of walking of the washing machine, improve the structural reliability and the service life of the foot margin contact part, avoid the torsion deformation of the box body, reduce the transmission of vibration energy and improve the user experience degree and the environmental comfort degree.

Therefore, active vibration reduction processing in corresponding directions is carried out on the vibration in different directions generated in the operation process of the vibration reduction equipment to be treated, the vibration reduction effect can be improved, and the user experience is further improved.

Optionally, the second directional electromagnetic damping layer 2 may include: a second direction first electromagnet 21 and a second direction second electromagnet 22.

The second-direction first electromagnet 21 and the second-direction second electromagnet 22 are arranged at intervals, and may be configured to form a second magnetic field force with a magnetic field direction opposite to a vibration direction of the second-direction vibration when the device to be damped vibrates in the second direction during operation, so as to perform a second reverse balance process on the second-direction vibration through the second magnetic field force.

For example: the second-direction first electromagnet 21 may be a left-side electromagnet when the second direction is the left-right direction. The second direction second electromagnet 22 may be a right-side electromagnet when the second direction is left-right. For example: the second-direction first electromagnet 21 and/or the second-direction second electromagnet 22 may have various shapes such as a bar magnet, a circular magnet, and a block magnet. For example: the second-direction first electromagnet 21 and the second-direction second electromagnet 22 may be provided in parallel.

For example: the front and rear damping layers (e.g., the first direction electromagnetic damping layer 1) on the upper layer may include front and rear electromagnets (e.g., the first direction first electromagnet 11 and the first direction second electromagnet 12), and the left and right damping layers (e.g., the second direction electromagnetic damping layer 2) on the lower layer may include left and right electromagnets (e.g., the second direction first electromagnet 21 and the second direction second electromagnet 22), and the two pairs of electromagnets may form a magnetic field region capable of controlling the magnetic field strength.

Therefore, a pair of second pair of electromagnets is formed by the first electromagnets in the second direction and the second electromagnets in the second direction which are arranged at intervals, second magnetic field force is generated, and vibration in the second direction is reversely balanced.

Optionally, the second directional electromagnetic damping layer 2 may further include: a second direction magnetic fluid 23.

The second-direction magnetic fluid 23 is distributed between the second-direction first electromagnet 21 and the second-direction second electromagnet 22, and may be configured to move in a direction opposite to the vibration direction of the second-direction vibration under the driving of the second magnetic field force, so as to enhance the second reverse balance processing.

For example: magnetofluids (for example, the first-direction magnetofluid 13 distributed on the first-direction electromagnetic damping layer 1, and the second-direction magnetofluid 23 distributed on the second-direction electromagnetic damping layer 2) capable of flowing along the magnetic field direction are distributed in the upper and lower magnetic field regions.

Therefore, the magnetic fluid in the second direction is driven to move through the second magnetic field force, the balancing force for reversely balancing the vibration in the second direction can be enhanced, and the efficiency and the effect of reversely balancing the vibration in the second direction are improved.

In an alternative example, the number of the first direction electromagnetic damping layers 1 is more than one.

Therefore, the flexibility and reliability of active vibration reduction processing on the first-direction vibration can be improved through the plurality of first-direction electromagnetic vibration reduction layers.

In an alternative example, the number of the second direction electromagnetic damping layers 2 is more than one.

Therefore, the flexibility and the reliability of the active vibration reduction processing of the vibration in the second direction can be improved through the plurality of second direction electromagnetic vibration reduction layers.

In an alternative example, one of the second-direction electromagnetic damping layers 2 is stacked above or below one of the first-direction electromagnetic damping layers 1.

For example: a vibration-damping top cover (for example, a vibration-damping top cover 5) of a washing machine is divided into an upper layer and a lower layer, wherein the upper layer is used for damping vibration in the front-back direction, and the lower layer is used for damping vibration in the left-right direction of the washing machine.

Therefore, the flexibility and convenience of active vibration reduction processing of the vibration reduction equipment to be treated can be improved through multiple setting modes of the first direction electromagnetic vibration reduction layer and the second direction electromagnetic vibration reduction layer.

In an optional example, an included angle between the first direction electromagnetic damping layer 1 and the second direction electromagnetic damping layer 2 is greater than 0 ° and less than or equal to 90 °. When the included angle between the first-direction electromagnetic damping layer 1 and the second-direction electromagnetic damping layer 2 is 90 °, as shown in fig. 3 and 4, the arrangement direction (i.e. the first direction) of the first-direction electromagnetic damping layer 1 may include: the positive and negative directions of the y-axis (for example, the front and back directions of the washing machine). The arrangement direction (i.e., the second direction) of the second-direction electromagnetic damping layer 2 may include: the positive and negative directions of the x-axis (e.g., the positive and negative directions of the washing machine).

For example: fig. 3 and 4 are projection views of the front surface (e.g., front surface 61) and the side surface (e.g., side surface 62) of the vibration reduction top cover of the washing machine, respectively, from which it can be seen that the upper and lower two-layer structure and the magnetic fluid distribution in the top cover (e.g., vibration reduction top cover 5) are shown, wherein the x-axis direction is the left-right direction of the washing machine, the y-axis direction is the front-back direction of the washing machine, and the z-axis direction is the vertical direction of the.

Therefore, the first direction and the second direction are set to be different directions, active vibration reduction processing in corresponding directions can be carried out on vibration in multiple directions of the device to be subjected to vibration reduction, flexibility is good, and universality is high.

In an alternative embodiment, the method may further include: a middle partition plate 3.

In an alternative example, the middle spacer 3 is disposed between the first direction electromagnetic damping layer 1 and the second direction electromagnetic damping layer 2.

For example: the upper layer and the lower layer are separated by a middle clapboard (such as the middle clapboard 3).

Therefore, the first direction electromagnetic vibration reduction layer and the second direction electromagnetic vibration reduction layer are separated through the middle partition plate, so that the operation of the first direction electromagnetic vibration reduction layer and the operation of the second direction electromagnetic vibration reduction layer are not interfered with each other, and the reliability and the safety of active vibration reduction processing of respective to-be-treated vibration reduction equipment are improved.

In an alternative embodiment, the method may further include: a housing 4.

In an alternative example, the housing 4 can form a receiving cavity. The first direction electromagnetic vibration damping layer 1 and the second direction electromagnetic vibration damping layer 2 are accommodated in the accommodating cavity.

From this, through the setting of shell, the each direction electromagnetism damping layer of holding of can being convenient for is favorable to promoting the reliability of damping structure installation and the convenience of use.

When the vibration damping structure further comprises the middle partition plate 3, the middle partition plate 3 is also accommodated in the accommodating cavity.

From this, through the setting of shell, the holding median septum of can being convenient for further promotes the reliability of damping structure installation and the convenience of use.

Optionally, the middle partition plate 3 and the outer shell 4 are both made of plastic.

For example: the middle clapboard and the cover plate outer cavity (such as the shell 4) are both plastic pieces.

Therefore, the middle partition plate and the shell of the plastic part have light weight, are beneficial to reducing the weight of the vibration reduction structure and have good use convenience; and the insulating property is good, and the use safety of the middle partition plate and the shell can be improved.

In an alternative embodiment, the method may further include: a controller 9, and a first displacement sensor 14 and/or a second displacement sensor 24.

In an alternative example, the first displacement sensor 14 may be configured to obtain a first vibration displacement of the device to be damped to produce damping in the first direction.

Alternatively, the first displacement sensor 14 is disposed on one side of the first direction electromagnetic damping layer 1. For example: the first displacement sensor 14 may be a displacement sensor B, which may be disposed at a front side or a rear side of the front and rear damping layers of the washing machine.

Therefore, the first displacement sensor is arranged on one side of the first direction electromagnetic vibration reduction layer, the first vibration displacement of the equipment to be subjected to vibration reduction when the equipment to be subjected to vibration reduction vibrates in the first direction can be accurately obtained, the obtaining mode is simple and convenient, and the obtaining result is reliable.

In an alternative example, the controller 9 may be configured to increase the first input current of the first-direction electromagnetic damping layer 1 if the first vibration displacement is greater than or equal to an upper limit of a first set displacement; if the first vibration displacement is smaller than the lower limit of the first set displacement, reducing the first input current of the first-direction electromagnetic vibration damping layer 1; and changing the direction of the first input current so that the first-direction electromagnetic vibration reduction layer 1 forms a first magnetic field force opposite to the vibration direction of the first-direction vibration.

For example: the vibration displacement sensor can be adopted to monitor vibration signals of the washing machine in real time and feed back the vibration signals to the controller, and the controller dynamically adjusts electromagnetic field distribution according to vibration conditions so as to change the motion conditions of the magnetic fluid to realize active vibration reduction of the washing machine.

Therefore, the first input current of the first-direction electromagnetic vibration reduction layer is controlled based on the first vibration displacement when the equipment to be subjected to vibration reduction vibrates in the first direction, and the accuracy and the reliability of reverse balance processing on the first-direction vibration can be improved.

When the first-direction electromagnetic damping layer 1 may include a first-direction first electromagnet 11, a first-direction second electromagnet 12, and a first-direction magnetic fluid 13, the first input current is a current that is input to the first-direction first electromagnet 11 and the first-direction second electromagnet 12, may be used to generate a first electromagnetic force, and may enable the first-direction magnetic fluid 13 to perform a convective motion between the first-direction first electromagnet 11 and the first-direction second electromagnet 12.

Therefore, the magnetic fluid in the first direction carries out convection motion under the action of the first input current, so that the high efficiency and the reliability of active vibration reduction of the vibration in the first direction can be improved.

Alternatively, when the number of the first direction electromagnetic damping layers 1 is one or more, the number of the first displacement sensors 14 is the same as the number of the first direction electromagnetic damping layers 1.

Wherein each of the first displacement sensors 14 may be configured to acquire a corresponding first vibrational displacement of each of the first-direction electromagnetic damping layers 1. The control of the first input current of the first-direction electromagnetic damping layer 1 by the controller 9 may include: and according to each first vibration displacement, independently controlling the corresponding first input current of each first-direction electromagnetic vibration damping layer 1.

Therefore, the plurality of first-direction electromagnetic vibration reduction layers are independently controlled, so that the flexibility and diversity of active vibration reduction treatment of the first-direction vibration of the equipment to be subjected to vibration reduction are favorably improved, the control mode is simple and convenient, and the reliability is high.

In an alternative example, the second displacement sensor 24 may be configured to acquire a second vibration displacement of the device to be damped to generate the second directional vibration.

Alternatively, the second displacement sensor 24 is disposed on one side of the second direction electromagnetic damping layer 2. For example: the second displacement sensor 24 may be a displacement sensor a, which may be disposed at the left or right side of the left and right vibration damping layer of the washing machine.

Therefore, the second displacement sensor is arranged on one side of the second direction electromagnetic vibration damping layer, the second vibration displacement of the equipment to be damped in the second direction vibration can be accurately acquired, the acquisition mode is simple and convenient, and the acquisition result is reliable.

In an optional example, the controller 9 may be further configured to increase the second input current of the second directional electromagnetic damping layer 2 if the second vibration displacement is greater than or equal to an upper limit of a second set displacement; if the second vibration displacement is smaller than the lower limit of the second set displacement, reducing the second input current of the second-direction electromagnetic vibration reduction layer 2; and changing the direction of the second input current to enable the second directional electromagnetic damping layer 2 to form a second magnetic field force opposite to the vibration direction of the second directional vibration.

For example: the washing machine vibration reduction method based on the magnetofluid dynamic regulation technology can monitor the whole vibration displacement of the washing machine in real time, can actively regulate and control the vibration problem of the washing machine, improves the running stability of the whole machine, can effectively improve the problem of foundation failure, prolongs the foundation contact life, and solves the problem that the foundation contact part of the washing machine is easy to fatigue failure due to large shaking of the washing machine during running.

Therefore, the second input current of the electromagnetic vibration reduction layer in the second direction is controlled based on the second vibration displacement of the equipment to be subjected to vibration reduction when the equipment to be subjected to vibration reduction vibrates in the second direction, and the accuracy and the reliability of reverse balance processing of the vibration in the second direction can be improved.

When the second-direction electromagnetic damping layer 2 may include the second-direction first electromagnet 21, the second-direction second electromagnet 22, and the second-direction magnetic fluid 23, the second input current is a current which is input to the second-direction first electromagnet 21 and the second-direction second electromagnet 22, can be used for generating a second electromagnetic force, and can enable the second-direction magnetic fluid 23 to perform a convective motion between the second-direction first electromagnet 21 and the second-direction second electromagnet 22.

Therefore, the magnetic fluid in the second direction carries out convection motion under the action of the second input current, so that the high efficiency and the reliability of active vibration reduction of vibration in the second direction can be improved.

Alternatively, when the number of the second-direction electromagnetic damping layers 2 is one or more, the number of the second displacement sensors 24 is the same as the number of the second-direction electromagnetic damping layers 2.

Wherein each of the second displacement sensors 24 may be configured to obtain a corresponding second vibration displacement of each of the second directional electromagnetic damping layers 2. The control of the second input current of the second directional electromagnetic damping layer 2 by the controller 9 may include: and according to each second vibration displacement, independently controlling the corresponding second input current of each second-direction electromagnetic vibration damping layer 2.

Therefore, the electromagnetic vibration reduction layers in the second directions are independently controlled, so that the flexibility and diversity of active vibration reduction treatment of the second direction vibration of the equipment to be subjected to vibration reduction are favorably improved, the control mode is simple and convenient, and the reliability is high.

Alternatively, the controller 9 may control the first input current of the first directional electromagnetic damping layer 1 and the second input current of the second directional electromagnetic damping layer 2 simultaneously or separately.

For example: referring to the example shown in fig. 5, the top view of the magnetic fluid top cover and the damping working principle diagram of the magnetic fluid have the following specific damping principles:

(1) damping left and right directions of the washing machine: the left and right directions of the washing machine are the main directions of vibration, as shown in fig. 3, the left and right vibration damping of the present invention mainly depends on the vibration damping region (for example, the second direction electromagnetic vibration damping layer 2) on the lower layer of the top cover, when the washing machine is running, according to the schematic diagram shown in fig. 5, the displacement sensor a (for example, the second displacement sensor 24) monitors the vibration displacement of the washing machine in the x direction in real time, and converts the vibration displacement signal (for example, it can be converted by the signal processing unit 8) into an electric signal to be transmitted to the controller (for example, the controller 9), the controller outputs a differential signal (for example, it can output a differential information sum by the differential output unit 101) to the amplifier (for example, the amplifier 102) according to the vibration condition, the signal is amplified by the amplifier and further adjusts the current input of the left and right electromagnets, the magnetic field, and pulls the magnetic fluid to flow in the x-direction.

For example: when the washing machine shakes rightwards integrally, the displacement sensor A can transmit an actually measured vibration displacement signal to the controller, the controller can regulate and control the size and the direction of current input of the left electromagnet and the right electromagnet according to the size of vibration displacement, so that a lower-layer vibration reduction area forms magnetic field force from right to left, the magnetic field force drives the magnetic fluid to flow leftwards and gather on the left side, inertia of movement rightwards can be reduced, and meanwhile, a leftwards balancing force is generated on the left side of a top cover of the washing machine, so that the effect of balancing the rightward vibration of the washing machine is achieved.

Similarly, when the washing machine has the tendency of shaking leftwards, the left and right vibration reduction layers of the vibration reduction top cover can generate a magnetic field from left to right, so that real-time regulation and control and vibration balance can be realized, and the x-direction vibration of the washing machine can be kept in a balanced and stable range.

(2) Front and back vibration of the washing machine: the front and back vibration of the washing machine is mainly realized by a vibration reduction area (such as a first-direction electromagnetic vibration reduction layer 1) on the upper layer of the top cover, a displacement sensor B (such as a first displacement sensor 14) can monitor the y-direction vibration displacement of the washing machine in real time, converts a vibration displacement signal into an electric signal and transmits the electric signal to a controller, and the controller performs differential current input regulation and control on the front and back electromagnets on the upper layer according to the vibration condition so as to change the magnetic field intensity and direction in the front and back vibration reduction layer and drive the magnetic fluid to move in the front and back direction to balance the y-direction vibration of the washing machine, so that the front and back vibration of the washing.

(3) Torsional vibration of the washing machine: under the influence of torsional vibration of a suspension system of the washing machine, the whole washing machine has a certain torsional vibration trend, at the moment, the displacement sensors A, B (such as the first displacement sensor 14 and the second displacement sensor 24) simultaneously transmit respective detected vibration displacement signals to the controller, and the controller comprehensively regulates and controls differential current output to simultaneously control the magnetic field distribution of the upper and lower layers of vibration damping areas (such as the first-direction electromagnetic vibration damping layer 1 and the second-direction electromagnetic vibration damping layer 2) of the vibration damping top cover, so that the upper layer of magnetofluid (such as the first-direction magnetofluid 13) and the lower layer of magnetofluid (such as the second-direction magnetofluid 23) cooperatively move, wherein the upper layer of magnetofluid generates a balancing force to the y direction of the washing machine, the lower layer of magnetofluid generates a balancing force to the x direction of the washing machine, and the x and y balancing forces cooperatively act to form torsional vibration in the opposite direction to the torsional vibration of the washing machine, thereby realizing the function of dynamically balancing the torsional vibration of the washing machine.

For example: according to the vibration condition of the washing machine, the upper and lower vibration damping areas can independently perform front-back and left-right vibration damping, and can also simultaneously perform coordination action to reduce the torsional vibration of the washing machine; through the vibration dynamic balance of the whole washing machine, the problem that the washing machine is easy to walk caused by the whole washing machine shaking is effectively solved. The active vibration reduction technology and the device can realize the independent control of the front-back vibration and the left-right vibration of the washing machine, and simultaneously can realize the bidirectional coordinated regulation and control to control the torsional vibration of the washing machine. For example: through the cooperative active vibration reduction in the front-back direction and the left-right direction, the complete machine torsional vibration of the washing machine can be effectively balanced, and the problem of serious deformation of the washing machine box body under the torsional motion is solved.

For example: the damping device uses the top cover of the washing machine as a carrier and is divided into an upper layer damping area and a lower layer damping area, the upper layer and the lower layer respectively realize the front-back damping and the left-right damping of the washing machine, and the upper layer and the lower layer have synergistic effect, so that the problem of the integral torsional pendulum of the washing machine can be effectively solved. Through this kind of initiative damping, can realize that washing machine is whole not walking about and even running, can effectively avoid lower margin contact department fatigue failure and box torsional pendulum to warp, can reduce the propagation of vibration energy to ground and air all around simultaneously, effectively promote user experience degree and environmental comfort.

Therefore, through independent control or simultaneous control of the first direction electromagnetic vibration reduction layer and the second direction electromagnetic vibration reduction layer, various problems caused by vibration of equipment to be subjected to vibration reduction can be solved, and the device is high in reliability and high in safety.

In an alternative embodiment, the method may further include: at least one of the signal processing unit 8 and the differential output unit 101.

In an optional example, the signal processing unit 8 may be configured to convert at least one of the first vibration displacement acquired by the first displacement sensor 14 and the second vibration displacement acquired by the second displacement sensor 24 into a corresponding electrical signal, and transmit the electrical signal to the controller 9.

For example: the active vibration reduction method of the washing machine based on the magnetofluid dynamic regulation technology and the vibration reduction top cover thereof can monitor the vibration displacement of the whole washing machine in the front-back direction and the left-right direction in real time, convert the vibration displacement signal into an electric signal and feed the electric signal back to the controller, and the controller can regulate and control the magnetic field distribution in the device in real time, thereby changing the magnetofluid motion and playing a dynamic reverse balance effect on the washing machine vibration.

From this, through converting vibration displacement into the signal of telecommunication, the controller of being convenient for on the one hand handles, and on the other hand is more energy-conserving, can promote the precision and the reliability of control.

In an optional example, the differential output unit 101 may be configured to differentially output the first input current adjusted by the controller 9 to the first-direction electromagnetic damping layer 1; and/or differentially outputting the second input current regulated by the controller 9 to the second directional electromagnetic damping layer 2.

Therefore, the convenience and the reliability of outputting and modulating the corresponding input current can be improved by the electromagnetic vibration damping layer in the direction corresponding to the differential output value of the corresponding input current.

In an alternative embodiment, the method may further include: an amplifier 102.

In an alternative example, the amplifier 102 may be configured to amplify the first input current adjusted by the controller 9 and output the amplified first input current to the first-direction electromagnetic damping layer 1. And/or amplifying the second input current regulated by the controller 9 and outputting the amplified second input current to the second direction electromagnetic damping layer 2.

When the vibration damping structure may further include a differential output unit 101, the amplifier 102 may be further configured to amplify the first input current differentially output by the differential output unit 101 and output the amplified first input current to the first-direction electromagnetic vibration damping layer 1. And/or amplifying the second input current differentially output by the differential output unit 101 and outputting the amplified second input current to the second directional electromagnetic damping layer 2.

Therefore, the first input current and the second input current are amplified and then input to the electromagnetic vibration reduction layers in the corresponding directions, and the sensitivity and the reliability of the regulation and control of the corresponding input currents of the electromagnetic vibration reduction layers in the corresponding directions are improved.

Through a large amount of experimental verification, adopt the technical scheme of this embodiment, through using the washing machine top cap as the carrier, divide into upper strata and lower floor's damping region, upper and lower floor realizes washing machine forward and backward damping respectively and controls to the damping from left and right sides, can realize washing machine forward and backward and left and right sides to vibrate independent control, also can two-way regulation and control in coordination with control washing machine torsional oscillation problem simultaneously, and then effectively solve washing machine complete machine through complete machine vibration dynamic balance and rock and easily cause washing machine "walk" the problem, also can effectively solve washing machine whole torsional pendulum problem.

According to the utility model discloses an embodiment still provides a washing machine corresponding to damping structure. The washing machine may include: the vibration damping structure described above; the vibration reduction structure is arranged on the top of the body structure of the washing machine and is used as a top cover of the washing machine.

In an alternative embodiment, the present invention is directed to active control of washing machine vibration. The active control can be based on the magnetofluid dynamic regulation technology to realize the active control of the whole vibration of the washing machine. For example: when the vibration of the washing machine is actively balanced, the heavy propagation of vibration noise energy to the ground and the air can be reduced, and the comfort of the family environment of a user is improved to a certain extent.

Specifically, through the active vibration reduction method of the washing machine based on the magnetofluid dynamic regulation technology and the vibration reduction top cover thereof, the vibration displacement of the whole washing machine in the front-back direction and the left-right direction can be monitored in real time, a vibration displacement signal can be converted into an electric signal to be fed back to the controller, and the controller can regulate and control the magnetic field distribution in the device in real time, so that the magnetofluid motion is changed, and the effect of dynamic reverse balance on the washing machine vibration is achieved.

In an alternative example, electromagnetic field technology may be incorporated into the top cover of a washing machine and used to drive the internal magnetic fluid motion. In particular, the mass space distribution change of the magnetic fluid under the drive of the magnetic field and the balance force generated by the magnetic fluid on the washing machine can be utilized to balance the vibration of the washing machine.

The magnetic fluid is also called magnetic liquid, ferrofluid or magnetic liquid, is a novel functional material, and has the liquidity of liquid and the magnetism of a solid magnetic material; is a stable colloidal liquid formed by mixing magnetic solid particles with the diameter of nanometer magnitude (below 10 nanometers), base carrier liquid (also called medium) and a surfactant; there is no magnetic attraction in static state, and when the external magnetic field is acted, it shows magnetism.

Optionally, a vibration damping top cover (for example, a vibration damping top cover 5) of the washing machine can be provided, wherein the top cover is divided into an upper layer and a lower layer, the upper layer is used for damping vibration in the front-back direction, and the lower layer is used for damping vibration in the left-right direction of the washing machine; according to the vibration condition of the washing machine, the upper and lower vibration damping areas can independently perform front-back and left-right vibration damping, and can also simultaneously perform coordination action to reduce the torsional vibration of the washing machine. For example: through the vibration dynamic balance of the whole washing machine, the problem that the washing machine is easy to walk caused by the whole washing machine shaking is effectively solved.

The active vibration reduction technology and the device can realize independent control of front-back vibration and left-right vibration of the washing machine, and can realize bidirectional coordinated regulation and control to control the torsional vibration of the washing machine. For example: through the cooperative active vibration reduction in the front-back direction and the left-right direction, the complete machine torsional vibration of the washing machine can be effectively balanced, and the problem of serious deformation of the washing machine box body under the torsional motion is solved.

For example: the damping device uses the top cover of the washing machine as a carrier and is divided into an upper layer damping area and a lower layer damping area, the upper layer and the lower layer respectively realize the front-back damping and the left-right damping of the washing machine, and the upper layer and the lower layer have synergistic effect, so that the problem of the integral torsional pendulum of the washing machine can be effectively solved.

In a further optional example, a vibration displacement sensor can be adopted to monitor vibration signals of the washing machine in real time and feed back the vibration signals to the controller, and the controller dynamically adjusts electromagnetic field distribution according to vibration conditions so as to change the motion conditions of the magnetic fluid to realize active vibration reduction of the washing machine.

Therefore, the washing machine vibration reduction method based on the magnetofluid dynamic regulation technology can monitor the whole vibration displacement of the washing machine in real time, actively regulate and control the vibration problem of the washing machine, improve the running stability of the whole machine, effectively improve the problem of foundation failure, prolong the contact life of the foundation and solve the problem that the foundation contact part of the washing machine is easy to fatigue failure due to large shaking of the washing machine during running.

For example: through the initiative damping, can realize that washing machine is whole not walking about and even running, can effectively avoid lower margin contact department fatigue failure and box torsional pendulum to warp, can reduce the propagation of vibration energy to ground and air all around simultaneously, effectively promote user experience degree and environmental comfort.

In conclusion, the active vibration reduction method and the vibration reduction top cover device can effectively balance the overall vibration of the washing machine, solve the problem of 'walking' of the washing machine, improve the structural reliability and the service life of the foot margin contact part, avoid the torsion deformation of the box body, reduce the transmission of vibration energy and improve the user experience degree and the environmental comfort degree.

In an alternative example, fig. 1 shows a conventional top cover used in a current washing machine, which is mainly made of a thin-wall injection molding, and has the advantage of light weight, but cannot play a good role in vibration damping and sound insulation. The existing washing machine is placed vertically, the maximum vibration response point is often generated at the upper end of the washing machine when the washing machine operates, the problems that the washing machine walks, the foundation contact fatigue fails, the box body cannot be restored and deformed and the like are caused due to large-amplitude deflection and torsional vibration of the upper end of the washing machine, meanwhile, certain troubles are caused to the life of a user through ground transmission of vibration energy, and the user experience is influenced.

In order to solve the problem of the whole shimmy of the washing machine more effectively, the utility model discloses a pointed initiative damping method and damping top cap that can reduce the shimmy of the upper end of the washing machine, this damping method and top cap mainly realize based on the magnetic fluid dynamic adjustment, and its simple structure schematic diagram of magnetic fluid damping top cap is shown in figure 2, and mainly divide into upper and lower two-layer magnetic fluid damping layer (for example: first direction electromagnetic damping layer 1 and second direction electromagnetic damping layer 2, etc.), wherein the top cap upper strata in the utility model is the washing machine fore-and-aft direction damping layer (for example: first direction electromagnetic damping layer 1), and the lower floor is the washing machine left and right direction damping layer (for example: second direction electromagnetic damping layer 2), and upper and lower two-layer adopts median septum (for example: median septum 3) to separate, and median septum and apron outer cavity (for example: shell 4) are all.

Alternatively, the front and rear damping layers (e.g., the first-direction electromagnetic damping layer 1) on the upper layer may include front and rear electromagnets (e.g., the first-direction first electromagnet 11 and the first-direction second electromagnet 12), the left and right damping layers (e.g., the second-direction electromagnetic damping layer 2) on the lower layer may include left and right electromagnets (e.g., the second-direction first electromagnet 21 and the second-direction second electromagnet 22, etc.), two pairs of electromagnets are used to form magnetic field regions capable of regulating and controlling magnetic field strength, and magnetofluids capable of flowing in the magnetic field direction (e.g., the first-direction magnetofluid 13 distributed on the first-direction electromagnetic damping layer 1 and the second-direction magnetofluid 23 distributed on the second-direction electromagnetic damping layer 2) are distributed in the upper and lower magnetic field regions.

In an alternative embodiment, fig. 3 and 4 are projection views of the front surface (e.g., the front surface 61) and the side surface (e.g., the side surface 62) of the vibration reduction top cover of the washing machine, respectively, and the upper and lower layer structures and the magnetic fluid distribution in the top cover (e.g., the vibration reduction top cover 5) can be seen from the projection views, wherein the x-axis direction is the left-right direction of the washing machine, the y-axis direction is the front-back direction of the washing machine, and the z-axis direction is the vertical direction of the washing machine.

The washing machine front 61, among others, may include: a first ground leg 71 (e.g., a left ground leg) and a second ground leg 72 (e.g., a right ground leg). Washing machine side 62, may include: a third leg 73 (e.g., a front leg) and a fourth leg 74 (e.g., a rear leg).

In an alternative embodiment, fig. 5 further shows a top view of the magnetic fluid top cover and a working principle diagram of magnetic fluid vibration reduction, wherein the specific vibration reduction principle is as follows:

Since the processes and functions of the washing machine of this embodiment are basically corresponding to the embodiments, principles and examples of the vibration damping structure shown in fig. 2 to 5, the description of this embodiment is not detailed, and reference may be made to the related descriptions in the foregoing embodiments, which are not repeated herein.

Through a large amount of tests verification, adopt the technical scheme of the utility model, through adopting vibration displacement sensor real time monitoring washing machine vibration signal and feeding back to the controller, the controller is according to vibration condition dynamic adjustment electromagnetic field distribution to change the magnetic current body motion condition and realize washing machine initiative damping, and then when the vibration of initiative balanced washing machine, also can reduce vibration noise energy and heavily propagate to ground and air, improved user's family environment's travelling comfort to a certain extent.

According to the utility model discloses an embodiment still provides the damping method of a washing machine corresponding to washing machine. The vibration damping method of the washing machine may include:

at step S110, through the first-direction electromagnetic damping layer 1, when first-direction vibration is generated during operation of a device to be damped, first-direction active damping processing is performed on the first-direction vibration.

In an optional example, the performing, in step S110, a first-direction active vibration damping process on the first-direction vibration may include: when the first-direction electromagnetic damping layer 1 may include a first-direction first electromagnet 11 and a first-direction second electromagnet 12, a first magnetic field force whose magnetic field direction is opposite to the vibration direction of the first-direction vibration is formed by the first-direction first electromagnet 11 and the first-direction second electromagnet 12, so that a first counter-balance treatment is performed on the first-direction vibration by the first magnetic field force.

In an optional example, the performing, in step S110, a first-direction active vibration damping process on the first-direction vibration may further include: when the first-direction electromagnetic damping layer 1 may further include a first-direction magnetic fluid 13, the first-direction magnetic fluid 13 is driven by the first magnetic field force to move in a direction opposite to the vibration direction of the first-direction vibration, so as to enhance the first counter-balance process.

In step S120, through the second-direction electromagnetic damping layer 2, when a second-direction vibration is generated during the operation of the device to be damped, a second-direction active damping process is performed on the second-direction vibration.

In an optional example, the performing, in step S120, a second-direction active vibration damping process on the second-direction vibration may include: when the second-direction electromagnetic damping layer 2 may include a second-direction first electromagnet 21 and a second-direction second electromagnet 22, a second magnetic field force having a magnetic field direction opposite to the vibration direction of the second-direction vibration is formed by the second-direction first electromagnet 21 and the second-direction second electromagnet 22, so that the second counter-balance processing is performed on the second-direction vibration by the second magnetic field force.

In an optional example, the performing, in step S120, a second-direction active vibration damping process on the second-direction vibration may further include: when the second-direction electromagnetic damping layer 2 may further include a second-direction magnetic fluid 23, the second-direction magnetic fluid 23 is driven by the second magnetic field force to move in a direction opposite to the vibration direction of the second-direction vibration, so as to enhance the second counter balance process.

In an alternative embodiment, the method may further include: and regulating and controlling the first input current of the first-direction electromagnetic damping layer 1.

The process of regulating and controlling the first input current of the first-direction electromagnetic damping layer 1 may include:

step S210, obtaining a first vibration displacement of the device to be damped to generate damping in the first direction.

Step S220, if the first vibration displacement is greater than or equal to the upper limit of the first set displacement, the first input current of the first-direction electromagnetic damping layer 1 is increased. And if the first vibration displacement is smaller than the lower limit of the first set displacement, reducing the first input current of the first-direction electromagnetic vibration damping layer 1. And changing the direction of the first input current so that the first-direction electromagnetic vibration reduction layer 1 forms a first magnetic field force opposite to the vibration direction of the first-direction vibration.

In an optional example, when the number of the first-direction electromagnetic damping layers 1 is more than one, acquiring a first vibration displacement of the device to be damped to generate damping in the first direction may include: in step S210, a corresponding first vibration displacement of each first-direction electromagnetic damping layer 1 is acquired. The controlling of the first input current of the first-direction electromagnetic damping layer 1 in step S220 may include: and according to each first vibration displacement, independently controlling the corresponding first input current of each first-direction electromagnetic vibration damping layer 1.

In an alternative embodiment, the method may further include: and regulating and controlling a second input current of the electromagnetic damping layer 2 in the second direction.

The process of regulating and controlling the second input current of the electromagnetic damping layer 2 in the second direction may include:

step S310, obtaining a second vibration displacement of the device to be damped generating the vibration in the second direction.

Step S320, if the second vibration displacement is greater than or equal to the upper limit of the second set displacement, increasing the second input current of the second-direction electromagnetic damping layer 2. And if the second vibration displacement is smaller than the lower limit of the second set displacement, reducing the second input current of the second-direction electromagnetic vibration damping layer 2. And changing the direction of the second input current to enable the second directional electromagnetic damping layer 2 to form a second magnetic field force opposite to the vibration direction of the second directional vibration.

In an optional example, when the number of the second-direction electromagnetic damping layers 2 is more than one, acquiring a second vibration displacement of the device to be damped generating the second-direction vibration in step S310 may include: and acquiring corresponding second vibration displacement of each second-direction electromagnetic vibration damping layer 2. The controlling of the second input current of the second-direction electromagnetic damping layer 2 in step S320 may include: and according to each second vibration displacement, independently controlling the corresponding second input current of each second-direction electromagnetic vibration damping layer 2.

In an alternative embodiment, the method may further include: and converting at least one of the acquired first vibration displacement and the acquired second vibration displacement into a corresponding electric signal.

In an alternative embodiment, the method may further include: differentially outputting the first input current to the first-direction electromagnetic damping layer 1; and/or differentially outputting the second input current to the second directional electromagnetic damping layer 2.

In an alternative embodiment, the method may further include: amplifying the first input current and outputting the amplified first input current to the first-direction electromagnetic damping layer 1; and/or amplifying the second input current and outputting the amplified second input current to the second direction electromagnetic damping layer 2.

Since the processes and functions implemented by the vibration damping method of the present embodiment substantially correspond to the embodiments, principles and examples of the washing machine, reference may be made to the related descriptions in the foregoing embodiments without being detailed in the description of the present embodiment.

Through a large amount of tests verification, adopt the technical scheme of the utility model, through the active control based on the whole vibration of washing machine is realized to magnetic current body dynamic adjustment technique, real time monitoring washing machine is whole around and to the vibration displacement about and, and can convert vibration displacement signal into the signal of telecommunication and feed back to the controller, the controller can be adjusted in real time and controlling means magnetic field distribution, and then change the magnetic current body motion and play dynamic reverse balance's effect to washing machine vibration, can realize that washing machine is whole not walk about and even running, can effectively avoid lower margin contact department fatigue failure and box torsional pendulum to warp, can reduce the vibration energy to ground and the propagation of air all around simultaneously, effectively promote user experience degree and environmental comfort.

In summary, it is readily understood by those skilled in the art that the advantageous modes described above can be freely combined and superimposed without conflict.

The above description is only an example 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 scope of the claims of the present invention.

Claims

1. A vibration damping structure characterized by comprising: a first direction electromagnetic damping layer (1) and a second direction electromagnetic damping layer (2); wherein,

the first-direction electromagnetic vibration damping layer (1) is used for carrying out first-direction active vibration damping treatment on the first-direction vibration when the equipment to be damped generates first-direction vibration in the operation process;

and the second direction electromagnetic vibration reduction layer (2) is used for carrying out second direction active vibration reduction treatment on the second direction vibration when the equipment to be subjected to vibration reduction generates second direction vibration in the operation process.

2. The structure of claim 1, wherein,

the number of the first-direction electromagnetic damping layers (1) is more than one; and/or the presence of a gas in the gas,

the number of the second-direction electromagnetic damping layers (2) is more than one;

and/or the presence of a gas in the gas,

the second-direction electromagnetic damping layer (2) is arranged above or below the first-direction electromagnetic damping layer (1) in a laminated mode;

and/or the presence of a gas in the gas,

the included angle between the first direction electromagnetic vibration damping layer (1) and the second direction electromagnetic vibration damping layer (2) is larger than 0 degree and smaller than or equal to 90 degrees.

3. The structure of claim 1, further comprising: a middle partition plate (3);

the middle partition plate (3) is arranged between the first direction electromagnetic damping layer (1) and the second direction electromagnetic damping layer (2).

4. The structure of any one of claims 1 to 3, further comprising: a housing (4);

the shell (4) can form an accommodating cavity;

the first direction electromagnetic vibration damping layer (1) and the second direction electromagnetic vibration damping layer (2) are contained in the containing cavity.

5. Structure as claimed in claim 4, characterized in that, when the damping structure also comprises a median septum (3), said median septum (3) is also housed in said housing cavity.

6. A structure according to claim 3, characterized in that, when the damping structure further comprises a casing (4), the intermediate partition (3) and the casing (4) are both plastic parts.

7. The structure according to one of claims 1 to 3, wherein,

the first-direction electromagnetic damping layer (1) comprises: a first direction first electromagnet (11) and a first direction second electromagnet (12);

the first-direction first electromagnet (11) and the first-direction second electromagnet (12) are arranged at intervals and used for forming a first magnetic field force with the magnetic field direction opposite to the vibration direction of the first-direction vibration when the equipment to be damped generates the first-direction vibration in the operation process so as to perform first reverse balance treatment on the first-direction vibration through the first magnetic field force;

and/or the presence of a gas in the gas,

the second directional electromagnetic damping layer (2) comprising: a second direction first electromagnet (21) and a second direction second electromagnet (22);

the first electromagnet (21) in the second direction and the second electromagnet (22) in the second direction are arranged at intervals and used for forming a second magnetic field force with the magnetic field direction opposite to the vibration direction of the vibration in the second direction when the vibration in the second direction is generated in the operation process of the equipment to be damped, so that the vibration in the second direction is subjected to second reverse balance treatment through the second magnetic field force.

8. The structure of claim 7, wherein,

the first-direction electromagnetic damping layer (1) further comprises: a first direction magnetic fluid (13);

the first direction magnetic fluid (13) is distributed between the first direction first electromagnet (11) and the first direction second electromagnet (12) and is used for moving in a direction opposite to the vibration direction of the first direction vibration under the driving of the first magnetic field force so as to enhance the first reverse balance treatment;

and/or the presence of a gas in the gas,

the second direction electromagnetic damping layer (2) further comprises: a second direction magnetic fluid (23);

and the second direction magnetic fluid (23) is distributed between the second direction first electromagnet (21) and the second direction second electromagnet (22) and is used for moving in a direction opposite to the vibration direction of the second direction vibration under the driving of the second magnetic field force so as to strengthen the second reverse balance treatment.

9. The structure of any one of claims 1 to 3, further comprising: a controller (9), and a first displacement sensor (14) and/or a second displacement sensor (24); wherein,

the first displacement sensor (14) is used for acquiring a first vibration displacement generated by the equipment to be damped in the first direction;

and/or the second displacement sensor (24) is used for acquiring second vibration displacement of the equipment to be damped to generate the second direction vibration;

the controller (9) is used for increasing the first input current of the first-direction electromagnetic vibration damping layer (1) if the first vibration displacement is larger than or equal to the upper limit of a first set displacement; if the first vibration displacement is smaller than the lower limit of the first set displacement, reducing the first input current of the first-direction electromagnetic vibration reduction layer (1); and changing the direction of the first input current so that the first-direction electromagnetic vibration reduction layer (1) forms a first magnetic field force opposite to the vibration direction of the first-direction vibration;

and/or the presence of a gas in the gas,

the second input current of the second direction electromagnetic vibration reduction layer (2) is increased if the second vibration displacement is larger than or equal to the upper limit of a second set displacement; if the second vibration displacement is smaller than the lower limit of the second set displacement, reducing the second input current of the second-direction electromagnetic vibration reduction layer (2); and changing the direction of the second input current so that the second directional electromagnetic damping layer (2) forms a second magnetic field force opposite to the vibration direction of the second directional vibration.

10. The structure of claim 9, further comprising: at least one of a signal processing unit (8) and a differential output unit (101); wherein,

the signal processing unit (8) is used for converting at least one of the first vibration displacement acquired by the first displacement sensor (14) and the second vibration displacement acquired by the second displacement sensor (24) into a corresponding electric signal and transmitting the electric signal to the controller (9);

the differential output unit (101) is used for differentially outputting the first input current regulated by the controller (9) to the first-direction electromagnetic damping layer (1); and/or differentially outputting the second input current regulated by the controller (9) to the second directional electromagnetic damping layer (2).

11. The structure of claim 9, further comprising: an amplifier (102);

the amplifier (102) is used for amplifying the first input current regulated by the controller (9) and outputting the amplified first input current to the first-direction electromagnetic damping layer (1); and/or amplifying the second input current regulated by the controller (9) and outputting the amplified second input current to the second direction electromagnetic damping layer (2);

when the vibration damping structure further comprises a differential output unit (101), the amplifier (102) is further used for amplifying the first input current differentially output by the differential output unit (101) and outputting the amplified first input current to the first-direction electromagnetic vibration damping layer (1); and/or amplifying the second input current differentially output by the differential output unit (101) and outputting the amplified second input current to the second directional electromagnetic damping layer (2).

12. The structure of claim 9, wherein,

the first displacement sensor (14) is arranged on one side of the first direction electromagnetic damping layer (1) in the first direction; and/or the presence of a gas in the gas,

the second displacement sensor (24) is arranged on one side of the second direction electromagnetic damping layer (2) in the second direction;

and/or the presence of a gas in the gas,

when the first-direction electromagnetic vibration reduction layer (1) comprises a first-direction first electromagnet (11), a first-direction second electromagnet (12) and a first-direction magnetic fluid (13),

the first input current is input to the first-direction first electromagnet (11) and the first-direction second electromagnet (12), is used for generating a first electromagnetic force, and can enable the first-direction magnetic fluid (13) to carry out convection motion between the first-direction first electromagnet (11) and the first-direction second electromagnet (12);

and/or the presence of a gas in the gas,

when the second direction electromagnetic vibration reduction layer (2) comprises a second direction first electromagnet (21), a second direction second electromagnet (22) and a second direction magnetic fluid (23),

the second input current is input to the second-direction first electromagnet (21) and the second-direction second electromagnet (22), is used for generating a second electromagnetic force, and can enable the second-direction magnetic fluid (23) to carry out convection motion between the second-direction first electromagnet (21) and the second-direction second electromagnet (22);

and/or the presence of a gas in the gas,

when the number of the first direction electromagnetic damping layers (1) is more than one,

the number of the first displacement sensors (14) is consistent with that of the first-direction electromagnetic damping layers (1); wherein,

each first displacement sensor (14) is used for acquiring corresponding first vibration displacement of each first-direction electromagnetic damping layer (1);

the control of the first input current of the first direction electromagnetic damping layer (1) by the controller (9) comprises: according to each first vibration displacement, independently controlling a corresponding first input current of each first-direction electromagnetic vibration damping layer (1);

and/or the presence of a gas in the gas,

when the number of the second direction electromagnetic damping layers (2) is more than one,

the number of the second displacement sensors (24) is consistent with that of the second direction electromagnetic damping layers (2); wherein,

each second displacement sensor (24) is used for acquiring corresponding second vibration displacement of each second-direction electromagnetic damping layer (2);

-control of a second input current of the second directional electromagnetic damping layer (2) by the controller (9), comprising: and according to each second vibration displacement, independently controlling the corresponding second input current of each second direction electromagnetic vibration damping layer (2).

13. A washing machine, characterized by comprising: the vibration damping structure according to any one of claims 1 to 12;

the vibration reduction structure is arranged on the top of the body structure of the washing machine and is used as a top cover of the washing machine.