CN113668189A - Displacement detection device, washing machine and control method of washing machine - Google Patents
Displacement detection device, washing machine and control method of washing machine Download PDFInfo
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- CN113668189A CN113668189A CN202010406058.1A CN202010406058A CN113668189A CN 113668189 A CN113668189 A CN 113668189A CN 202010406058 A CN202010406058 A CN 202010406058A CN 113668189 A CN113668189 A CN 113668189A
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- washing machine
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 131
- 238000001514 detection method Methods 0.000 title claims abstract description 117
- 238000005406 washing Methods 0.000 title claims abstract description 109
- 238000000034 method Methods 0.000 title claims abstract description 32
- 230000008569 process Effects 0.000 claims abstract description 15
- 230000018044 dehydration Effects 0.000 claims abstract description 13
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 13
- 230000008859 change Effects 0.000 claims description 60
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 52
- 238000005259 measurement Methods 0.000 claims description 6
- 238000009987 spinning Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008447 perception Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000005108 dry cleaning Methods 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
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Classifications
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/14—Arrangements for detecting or measuring specific parameters
- D06F34/16—Imbalance
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F33/00—Control of operations performed in washing machines or washer-dryers
- D06F33/30—Control of washing machines characterised by the purpose or target of the control
- D06F33/32—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
- D06F33/40—Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry of centrifugal separation of water from the laundry
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/14—Arrangements for detecting or measuring specific parameters
- D06F34/18—Condition of the laundry, e.g. nature or weight
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/26—Unbalance; Noise level
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/46—Drum speed; Actuation of motors, e.g. starting or interrupting
- D06F2105/48—Drum speed
Abstract
The invention discloses a displacement detection device, a washing machine and a control method of the washing machine, wherein the displacement detection device comprises a vibration element and a plurality of displacement detection units, each displacement detection unit comprises a touch part and a measuring part connected with the touch part, the touch parts of the plurality of displacement detection units surround an accommodating space, the vibration element is arranged in the accommodating space, and the vibration element can move between the touch parts of the displacement detection units to trigger the corresponding measuring part to generate a detection signal; the washing machine comprises the displacement detection device; the control method of the washing machine includes controlling the dewatering process of the washing machine according to the detection signal of the displacement detection device; the displacement detection device can realize displacement detection in multiple directions, and has simple structure and accurate detection result; in the dehydration operation process of the washing machine, the proper operation speed of the washing machine is timely adjusted through the signal of the displacement detection device, and the vibration of the washing machine is effectively reduced.
Description
Technical Field
The invention belongs to the technical field of washing machines, and particularly relates to a displacement detection device, a washing machine and a control method of the washing machine.
Background
Laundry treatment apparatuses are machines capable of washing, spin-drying, dry-cleaning and/or drying laundry, and common laundry treatment apparatuses include washing machines, shoe washers, dryers, dry cleaners, all-in-one washers, and the like. Taking a washing machine as an example, the washing machine can generate certain vibration when washing clothes, and under the condition of serious vibration, the washing barrel of the washing machine can be eccentric, and the vibration of the washing machine can generate great noise, thereby influencing the normal use of the washing machine by users and reducing the user experience.
For example, when the pulsator washing machine is used for dewatering, when clothes in a dewatering barrel of the washing machine are not uniformly distributed, the pulsator washing machine is caused to shake greatly, so that the feeling of a user is seriously influenced, and the service life of the pulsator washing machine is shortened. In the related technology, the method for detecting the dehydration imbalance of the pulsator washing machine is to install a mechanical barrel collision switch at a certain position away from an outer barrel of the washing machine, if the dehydration imbalance exists, the outer barrel shakes greatly to touch the mechanical barrel collision switch, the dehydration barrel stops rotating, then water is fed for rinsing again, and the clothes are automatically balanced. Although the device is low in cost and mature in application, the requirement on the precision of a mechanical barrel collision switch is high, the dependence on the swinging track of the dewatering barrel is high, in many cases, when clothes in the dewatering barrel are unbalanced and large, due to the fact that the dewatering barrel is not fixed, the outer barrel cannot collide with the mechanical barrel collision switch, the mechanical barrel collision switch is invalid, the outer barrel is made to collide with a box body, abnormal displacement and the like, the judgment mode is single, namely the outer barrel is broken or opened, the dewatering barrel can be passively controlled to stop rotating after the barrel collision happens, the rotating speed can not be actively adjusted according to the eccentric condition to avoid barrel collision, and the user experience is poor.
The present invention has been made in view of this situation.
Disclosure of Invention
The present invention is directed to overcoming the disadvantages of the prior art and providing a displacement detecting device, a washing machine and a control method for a washing machine, which at least solve some of the above technical problems.
In order to solve the technical problems, the invention adopts the technical scheme that:
the invention discloses a displacement detection device which comprises a vibration element and a plurality of displacement detection units, wherein each displacement detection unit comprises a touch part and a measurement part connected with the touch part, the touch parts of the displacement detection units surround an accommodating space, the vibration element is arranged in the accommodating space, and the vibration element can move between the touch parts of the displacement detection units to trigger the corresponding measurement part to generate a detection signal.
Furthermore, the vibrating element is a sphere, the displacement detection units are all arranged in the same plane, and the displacement detection units are arranged along the circumferential direction of the vibrating element at intervals.
Further, a plurality of the displacement detection units are arranged in different planes, and the plurality of the displacement detection units are arranged at intervals along the horizontal circumferential direction and the vertical circumferential direction of the vibration element.
The vibration element and the displacement detection unit are arranged in the shell, the displacement detection unit comprises an iron core with a certain length and an inductance coil sleeved on the iron core, an elastic piece is arranged between the iron core and the shell, one end of the elastic piece is abutted to the iron core, the other end of the elastic piece is abutted to the shell, when the vibration element moves to trigger the iron core to move, the elastic piece deforms, the iron core and the inductance coil generate relative displacement, and the inductance coil generates change of inductance;
preferably, the trip member includes an iron core, and the measuring member includes an inductance coil;
preferably, the ends of a plurality of the iron cores enclose the accommodating space, the vibration element is arranged in the accommodating space, and the vibration element can move between the ends of the iron cores to trigger the corresponding iron cores to move;
preferably, the plurality of iron cores are annular and arranged at intervals in the circumferential direction of the vibration element.
Furthermore, a first fixing frame and a second fixing frame are arranged on the shell, one end of the iron core is arranged in a limiting hole of the first fixing frame, the other end of the iron core is arranged in a limiting hole of the second fixing frame, the iron core is provided with a limiting part, and when the iron core moves, one side of the limiting part is clamped on the first fixing frame, or the other side of the limiting part is clamped on the second fixing frame;
preferably, the inductance coil is sleeved on the limiting part of the iron core through the first fixing frame.
The invention also discloses a washing machine, which comprises the displacement detection device, and the displacement detection device is electrically connected with the controller of the washing machine.
The invention also discloses a control method adopting the washing machine, in the dewatering process of the washing machine, the displacement detection device generates the change of the inductance in a plurality of directions through the shaking of the washing machine, and the controller controls the dewatering process of the washing machine according to the change of the inductance in the plurality of directions generated by the displacement detection device.
Further, when the change of the inductance values of the displacement detection device in multiple directions acquired by the controller is within the change range of the preset inductance value, controlling the washing machine to continuously execute the dehydration process;
preferably, the controlling the washing machine to continuously perform the dehydration process includes: and controlling a motor of the washing machine to be adjusted from the current rotating speed a to a rotating speed b, wherein the rotating speed b is more than or equal to the rotating speed a.
Further, when the change of the inductance value in any direction of the displacement detection device acquired by the controller is not in the change range of the preset inductance value and is within the threshold value of the change of the preset inductance value, the rotating speed a of the motor of the washing machine is adjusted to the rotating speed c, and the rotating speed c is less than the rotating speed a.
Further, the change of the inductance values in the multiple directions of the displacement detection device is continuously obtained after a certain time T, if the change of the inductance values in the multiple directions is within the change range of the preset inductance value, the rotating speed c is increased, if the change of the inductance values in any direction is not within the change range of the preset inductance value and is within the threshold value of the change of the preset inductance value, the rotating speed c is kept running or reduced to the rotating speed d, and the rotating speed d is less than the rotating speed c.
Further, when the change of the inductance value in any direction of the displacement detection device acquired by the controller exceeds a preset threshold value of the inductance value change, the motor of the washing machine is controlled to stop rotating.
After adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects:
(1) the displacement detection device can realize displacement detection in multiple directions, has a simple structure and accurate detection result;
(2) the washing machine is provided with the displacement detection device, and the displacement detection device can accurately feed back the change of the inductance generated by the inductance coil to the controller, so that the washing machine can accurately control the rotating speed of the washing machine according to the signal of the displacement detection device, and the control performance of the washing machine is improved;
(3) in the dewatering operation process of the washing machine, the displacement detection device has the displacement sensing function in multiple directions, so that the proper operation speed and operation mode of the washing machine can be adjusted in time by sensing the vibration magnitude of the washing machine during dewatering, the vibration noise of the washing machine can be effectively reduced, and the use experience of a user is greatly improved.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, 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 without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
In the drawings:
FIG. 1 is a schematic view of the displacement detecting device of the present invention;
FIG. 2 is a schematic view showing the internal structure of the displacement detecting device of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;
FIG. 4 is a side view of FIG. 1 of the present invention;
fig. 5 is a flowchart of a control method of a washing machine according to the present invention.
In the figure:
1. a vibrating element; 2. an accommodating space; 3. an iron core; 31. a limiting part; 4. an inductor coil; 5. an elastic member; 6. a housing; 7. a first fixing frame; 8. a second fixing frame; 9. a displacement detection device.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Example 1
As shown in fig. 1-4, the present embodiment discloses a displacement detecting device 9, where the displacement detecting device 9 includes a vibration element 1 and a plurality of displacement detecting units, one end of each displacement detecting unit encloses an accommodating space 2, the vibration element 1 is disposed in the accommodating space 2, and the vibration element 1 can move in the accommodating space 2 to trigger the corresponding displacement detecting unit to generate a detecting signal.
Each displacement detection unit comprises a touch part and a measurement part connected with the touch part, the touch parts of the displacement detection units surround an accommodating space 2, the vibration element 1 is arranged in the accommodating space 2, and the vibration element 1 can move between the touch parts of the displacement detection units to trigger the corresponding measurement parts to generate detection signals.
Among the above-mentioned technical scheme of this embodiment, vibrating element 1 can rock in accommodation space 2, through vibrating element 1 rock trigger corresponding displacement detection device 9 and produce the detected signal, can realize displacement detection, simple structure in a plurality of directions to the testing result is accurate.
As a preferable solution of this embodiment, the vibration element 1 is a sphere, the plurality of displacement detection units are all disposed in the same plane, and the plurality of displacement detection units are disposed at equal intervals along the circumferential direction of the vibration element 1; for example, since the vibration element 1 is a sphere, when the number of the displacement detection units is two, the two displacement detection units are arranged in a plane, and the two displacement detection units are oppositely arranged in the circumferential direction of the vibration element 1; when the number of the displacement detection units is three, the three displacement detection units are arranged in a plane, the three displacement detection units are arranged in the circumferential direction of the vibrating element 1 at intervals, and included angles of the axes of any two adjacent displacement detection units are the same; when the number of displacement detection unit is four, four displacement detection unit settings are in the coplanar, four displacement detection unit two liang sets up in vibrating element 1's circumference relatively promptly, preferably four displacement detection unit settings are in vibrating element 1's four preceding, back, left and right directions, or preceding, back, upper and lower four directions, certainly also can be left, right, upper and lower four directions, the contained angle of the axis of two arbitrary adjacent displacement detection unit is the same, technical personnel in the field can set up by oneself according to actual need, do not do specific restriction here.
As a preferable scheme of this embodiment, the vibration element 1 is a sphere, and the plurality of displacement detection units are disposed in different planes, preferably, the plurality of displacement detection units are disposed in a horizontal plane and a vertical plane where the vibration element 1 is located, respectively, for example, the plurality of displacement detection units are disposed at intervals along a horizontal circumferential direction and a vertical circumferential direction of the vibration element 1, and more preferably, the intervals of the displacement detection units are the same; for example, since the vibration element 1 is a sphere, the displacement detection units may be disposed in different planes, preferably a horizontal plane and a vertical plane perpendicular to the horizontal plane, when the number of the displacement detection units is six, the displacement detection units are disposed in the front, rear, left, right, and up and down six directions of the vibration element 1, the displacement detection units in the front, rear, left, and right directions are on the horizontal plane, and the displacement detection units in the up and down directions are on the vertical plane, and those skilled in the art can set the displacement detection units by themselves according to actual needs, and no specific limitation is made herein.
As a preferable scheme of this embodiment, the vibration device further includes a housing 6, the vibration element 1 and the displacement detection unit are disposed in the housing 6, the displacement detection unit includes an iron core 3 having a certain length and an inductance coil 4 sleeved on the iron core 3, preferably, the iron cores 3 are annular and are disposed in the circumferential direction of the vibration element 1 at intervals, the end portions of the iron cores 3 enclose the accommodating space 2, the vibration element 1 is disposed in the accommodating space 2, an elastic member 5 is disposed between the iron core 3 and the housing 6, one end of the elastic member 5 abuts against the iron core 3, the other end of the elastic member 5 abuts against the housing 6, when the vibration element 1 moves to trigger the iron core 3 to move, the elastic member 5 deforms, and the iron core 3 and the inductance coil 4 generate relative displacement, the inductance coil 4 generates the change of inductance; wherein, the trip part includes iron core 3, the measuring part includes inductance coil 4, preferably, elastic component 5 is the spring.
Further, a first fixing frame 7 and a second fixing frame 8 are arranged on the housing 6, one end of the iron core 3 is arranged in a limiting hole of the first fixing frame 7, the other end of the iron core 3 is arranged in a limiting hole of the second fixing frame 8, the iron core 3 is provided with a limiting portion 31, when the elastic member 5 is not compressed, one side of the limiting portion 31 is clamped on the first fixing frame 7, and when the elastic member 5 is compressed, the other side of the limiting portion 31 is clamped on the second fixing frame 8; preferably, the inductance coil 4 is sleeved on the limiting part 31 of the iron core 3 through the first fixing frame 7.
In the above technical solution of this embodiment, in a balanced state, each spring is in a free state, the vibration element 1 does not touch the iron core 3 to move, and the iron core 3 and the inductance coil 4 do not generate relative displacement; under the unbalanced state, the displacement monitoring device is influenced by external vibration, so that the vibration element 1 in the shell 6 can vibrate, the vibration element 1 is provided with kinetic energy vibrating in at least one direction, the corresponding iron core 3 is triggered to move through the vibration of the vibration element 1 in different directions, the elastic part 5 is compressed, the iron core 3 and the inductance coil 4 are relatively displaced, and the inductance of the inductance coil 4 is changed.
In the above technical scheme of this embodiment, displacement detection device simple structure, low in manufacturing cost can realize displacement detection, simple structure on a plurality of directions to the testing result is accurate.
Example 2
The invention also discloses a washing machine, which comprises the displacement detection device 9 in the embodiment 1, wherein the displacement detection device 9 is electrically connected with a controller of the washing machine, preferably, the washing machine comprises a box body and an outer barrel arranged in the box body, the displacement detection device 9 is arranged on the outer barrel as described in the embodiment 1, and the displacement detection device 9 is arranged on the outer barrel and can be arranged at the bottom, the side wall and the upper part of the outer barrel, preferably at the bottom of the outer barrel, or can be arranged on the box body of the washing machine, which is not limited in particular.
When the washing machine works, if the washing machine does not vibrate, the vibration element 1 can only be quietly stopped in the accommodating space 2, and the vibration in any direction cannot occur, but in most cases, the washing machine can cause vibration in different degrees in the washing process, and the vibration in different degrees is enough to give the vibration element 1 vibration in at least one direction in the accommodating space 2.
Further, when the washing machine vibrates, the vibration acts on the displacement detection device 9 mounted on the outer tub of the washing machine, the vibration element 1 in the accommodating space 2 is caused to vibrate, kinetic energy of vibration in at least one direction is obtained for the vibration element 1, the vibration element 1 shakes in different directions to trigger the iron core 3 to move, the spring is compressed, the iron core 3 and the inductance coil 4 are relatively displaced, so that the inductance of the inductance coil 4 is changed, and further, a change signal of the inductance is transmitted to a controller of the washing machine.
The washing machine with the displacement detection device has the advantages of simple structure and low manufacturing cost, and can change the inductance of the inductance coil of the displacement detection device of the washing machine when the displacement detection device of the washing machine shakes along with the washing machine, and accurately feed back the change signal of the inductance to the washing machine controller so as to monitor the vibration condition of the washing machine and improve the performance of the washing machine.
Example 3
As shown in fig. 1-5, the present invention also discloses a control method using the washing machine, the control method includes that the displacement detection device 9 generates the change of the inductance in a plurality of directions by the shaking of the outer tub during the dehydration process of the washing machine, and the controller controls the dehydration process of the washing machine according to the change of the inductance in the plurality of directions generated by the displacement detection device 9.
Further, when the change of the inductance values in the plurality of directions of the displacement detection device 9 acquired by the controller is within the change range of the preset inductance value, the washing machine is controlled to continue to perform the dehydration process;
preferably, the controlling the washing machine to continuously perform the dehydration process includes: and controlling a motor of the washing machine to be adjusted from the current rotating speed a to a rotating speed b, wherein the rotating speed b is more than or equal to the rotating speed a.
When the inductance changes in multiple directions of the displacement detecting device 9 are within the preset inductance change range, it indicates that the vibration of the washing machine is small, and within the acceptable range, the current spinning speed a may be increased or maintained, and of course, in order to accelerate the spinning process, the current spinning speed a is preferably increased to the spinning speed b.
Further, when the change of the inductance value in any direction of the displacement detection device 9 acquired by the controller is not within the change range of the preset inductance value and is within the threshold value of the change of the preset inductance value, the rotating speed a of the motor of the washing machine is adjusted to the rotating speed c, and the rotating speed c is less than the rotating speed a.
When the change of the inductance value in any direction of the displacement detection device 9 is not within the change range of the preset inductance value, but is at the threshold value of the change of the preset inductance value, it indicates that the vibration of the washing machine is beyond the normal vibration range at the moment, and the rotating speed a of the motor of the washing machine needs to be adjusted to the rotating speed c at the moment, so as to reduce the vibration of the washing machine as soon as possible.
Further, the change of the inductance values in the plurality of directions of the displacement detection device 9 is continuously obtained after a certain time T, if the change of the inductance values in the plurality of directions is within the change range of the preset inductance value, the rotating speed c is increased, and if the change of the inductance value in any direction is not within the change range of the preset inductance value and is within the threshold value of the change of the preset inductance value, the rotating speed c is kept running or reduced to the rotating speed d, wherein the rotating speed d is less than the rotating speed c.
When the rotating speed of the motor runs for a certain time T at the rotating speed c, continuously acquiring the changes of the inductance values in the multiple directions of the displacement detection device 9, and if the changes of the inductance values in the multiple directions are all in the preset inductance value change range, increasing the rotating speed c to the rotating speed a, which can be the rotating speed b; if the change of the inductance value in any direction is not in the change range of the preset inductance value and is in the threshold value of the change of the preset inductance value, which indicates that the current rotating speed c is still not enough to reduce the vibration of the washing machine, the rotating speed c is kept running or is reduced to a rotating speed d, preferably, the rotating speed c is reduced to the rotating speed d, and the rotating speed d is less than the rotating speed c.
Further, when the change of the inductance in any direction of the displacement detection device 9 acquired by the controller exceeds a preset threshold of inductance change, the motor of the washing machine is controlled to stop rotating.
When the change of the inductance value in any direction of the displacement detection device 9 exceeds the threshold value of the preset inductance value change, it is indicated that the vibration of the washing machine is very serious, if the washing machine continues to operate under the vibration, the washing machine is in a fault, and at the moment, the motor of the washing machine needs to be controlled to stop rotating, so that the washing machine stops dehydrating, water is fed again, the balance of the washing tub is adjusted, or fault troubleshooting is performed, so that the service life of the washing machine is prolonged.
Among the above-mentioned technical scheme of this embodiment, washing machine is at the dehydration operation in-process, because of this displacement detection device 9 has the ascending displacement perception function in a plurality of directions, through perception washing machine's vibration size, in time adjusts the suitable functioning speed of washing machine and operation mode, can effectively reduce washing machine vibration noise, promotes user's use greatly and experiences.
The above embodiments are only preferred embodiments of the present invention, and not intended to limit the present invention in any way, and although the present invention has been disclosed by the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make various changes and modifications to the equivalent embodiments by using the technical contents disclosed above without departing from the technical scope of the present invention, and the embodiments in the above embodiments can be further combined or replaced, but any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention still fall within the technical scope of the present invention.
Claims (10)
1. A displacement detecting device characterized in that: the displacement detection device comprises a vibration element and a plurality of displacement detection units, wherein each displacement detection unit comprises a touch part and a measurement part connected with the touch part, the touch parts of the displacement detection units surround an accommodating space, the vibration element is arranged in the accommodating space, and the vibration element can move between the touch parts of the displacement detection units to trigger the corresponding measurement part to generate a detection signal.
2. A displacement detecting device according to claim 1, characterized in that: the vibration element is a sphere, the displacement detection units are arranged in the same plane, and the displacement detection units are arranged at intervals along the circumferential direction of the vibration element; or a plurality of the displacement detection units are arranged in different planes, and the plurality of the displacement detection units are arranged at intervals along the horizontal circumferential direction and the vertical circumferential direction of the vibration element.
3. A displacement detecting device according to claim 1 or 2, characterized in that: the vibration element and the displacement detection unit are arranged in the shell, the displacement detection unit comprises an iron core with a certain length and an inductance coil sleeved on the iron core, an elastic piece is arranged between the iron core and the shell, one end of the elastic piece abuts against the iron core, the other end of the elastic piece abuts against the shell, when the vibration element moves to trigger the iron core to move, the elastic piece deforms, the iron core and the inductance coil generate relative displacement, and the inductance coil generates the change of inductance;
preferably, the trip member includes an iron core, and the measuring member includes an inductance coil;
preferably, the ends of a plurality of the iron cores enclose the accommodating space, the vibration element is arranged in the accommodating space, and the vibration element can move between the ends of the iron cores to trigger the corresponding iron cores to move;
preferably, the plurality of iron cores are annular and arranged at intervals in the circumferential direction of the vibration element.
4. A displacement detecting device according to claim 3, wherein: the shell is provided with a first fixing frame and a second fixing frame, one end of the iron core is arranged in a limiting hole of the first fixing frame, the other end of the iron core is arranged in a limiting hole of the second fixing frame, the iron core is provided with a limiting part, and when the iron core moves, one side of the limiting part is clamped on the first fixing frame, or the other side of the limiting part is clamped on the second fixing frame;
preferably, the inductance coil is sleeved on the limiting part of the iron core through the first fixing frame.
5. A washing machine characterized by: comprising a displacement detection device according to any of claims 1-4, said displacement detection device being electrically connected to a controller of said washing machine.
6. A control method using the washing machine as claimed in claim 5, characterized in that: in the dewatering process of the washing machine, the displacement detection device generates the change of the inductance values in a plurality of directions through the shaking of the washing machine, and the controller controls the dewatering process of the washing machine according to the change of the inductance values in the plurality of directions generated by the displacement detection device.
7. The control method of a washing machine as claimed in claim 6, wherein: when the change of the inductance values of the displacement detection device in multiple directions acquired by the controller is within the change range of the preset inductance value, controlling the washing machine to continuously execute a dehydration process;
preferably, the controlling the washing machine to continuously perform the dehydration process includes: and controlling a motor of the washing machine to be adjusted from the current rotating speed a to a rotating speed b, wherein the rotating speed b is more than or equal to the rotating speed a.
8. The control method of a washing machine as claimed in claim 6, wherein: when the change of the inductance value in any direction of the displacement detection device acquired by the controller is not in the change range of the preset inductance value and is in the threshold value of the change of the preset inductance value, adjusting the rotating speed a to the rotating speed c of the motor of the washing machine, wherein the rotating speed c is less than the rotating speed a.
9. The control method of a washing machine as claimed in claim 8, wherein: continuously acquiring the changes of the inductance values of the displacement detection device in multiple directions after a certain time T, if the changes of the inductance values in the multiple directions are all in the change range of the preset inductance value, increasing the rotating speed c, and if the changes of the inductance values in any direction are not in the change range of the preset inductance value and are in the threshold value of the change of the preset inductance value, keeping the rotating speed c to operate or reducing the rotating speed c to the rotating speed d, wherein the rotating speed d is less than the rotating speed c.
10. A control method of a washing machine according to any one of claims 6-9, characterized in that: and when the change of the inductance value in any direction of the displacement detection device acquired by the controller exceeds a preset threshold value of the inductance value change, controlling the motor of the washing machine to stop rotating.
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