WO2015192403A1

WO2015192403A1 - Method for detecting imbalance of washing machine, and washing machine

Info

Publication number: WO2015192403A1
Application number: PCT/CN2014/081462
Authority: WO
Inventors: 杨林; 高秋英; 方大丰; 徐雯婷
Original assignee: 青岛海尔洗衣机有限公司
Priority date: 2014-06-16
Filing date: 2014-07-02
Publication date: 2015-12-23
Also published as: JP2017531453A; JP6524508B2; KR20170018432A; EP3156536A4; AU2014398012A1; EP3156536A1; US20170121881A1

Abstract

A washing machine and method for detecting imbalance of the washing machine, comprising the following steps: operating the water draining timed sequence, and executing eccentricity detection and drainage trials; a sensor module (13) executes the eccentricity detection action to detect in real time the eccentricity of a machine, and preliminarily sets an initial drain curve; when running low-speed drain, the sensor module (13) detects low-speed eccentricity in real time; determining whether the detected low-speed eccentricity exceeds a set value; if yes, then correcting the low-speed eccentricity, and if not, then proceeding to the next step; when running high-speed drain, the sensor module (13) detects high-speed eccentricity in real time; determining whether the high-speed eccentricity of the high-speed drain exceeds a set value; if yes, then correcting the high-speed eccentricity, and if not, then ending with high-speed draining. The method employs active and real-time detection, avoiding the "bumping" phenomenon, and extending the service life of a washing machine.

Description

The present invention relates to the field of washing machines, and in particular to a washing machine imbalance detecting method and a washing machine. BACKGROUND OF THE INVENTION As a daily household appliance, a washing machine liberates people from the labor of washing, and thus is favored by a large number of users, and mainly includes a box body, an outer tub, an inner tub, a pulsator, a motor and a control panel; Inside, the inner tub is located in the outer tub, the outer tub is suspended by the boom, and the control panel controls the motor for washing and dehydrating. When the washing is completed, the washing machine is dehydrated. The existing automatic washing machine for washing is driven by the inner tub. The centrifugal effect is used to achieve the dehydration effect. When the laundry is unevenly distributed, it is easy to vibrate when dehydrated. The barrel, in the case of serious displacement, affects the quietness of the washing machine and the motor and mechanical structure life.

The existing fully automatic washing machine avoids hitting the barrel by hitting the anti-collision bar to trigger the stop switch when the dehydration is unbalanced. However, this method has the following disadvantages: First, when the eccentricity is too large, due to inertia, When the stop switch is triggered, it will also hit the bucket. Secondly, the anti-collision bar is fixedly installed in one position, which may also cause the collision of the bucket but does not trigger the stop switch, which may result in failure to detect and avoid vibration. Finally, due to the randomness of the impact Strong, there may be cases where the outer barrel is eccentric but does not hit the safety switch, which will cause "misleading", so that the washing machine will continue to dehydrate and continue to hit the box, eventually causing the washing machine case to be displaced or damaged, which is reduced. The service life of the washing machine.

Some existing washing machines use photoelectric sensors to measure the rotational speed, calculate the acceleration, and achieve the purpose of controlling the balance of the machine, but cannot accurately measure and control. When some eccentricity is used, it is easy to hit the barrel except the initial stage of dehydration, and multiple calculations are required to try the appropriate dehydration curve. Dehydration.

Therefore, how to realize the active real-time eccentricity detection of the washing machine during dehydration and real-time control according to the detection result becomes an urgent problem to be solved. SUMMARY OF THE INVENTION An object of the present invention is to provide a eccentricity detecting method for a pulsator washing machine, which is capable of performing eccentricity detection in an active and real-time manner, and performing real-time correction based on the detection result. In order to achieve the above object, the present invention adopts the following technical solutions:

A method for detecting imbalance of a washing machine, comprising the following steps:

Step Sl, running the dehydration timing, performing the eccentricity detection test dehydration action,

Step S2, the sensor module performs an eccentricity detecting action to detect the eccentricity condition of the machine in real time, and initially sets a dehydration curve;

Step S3, performing a low-speed dehydration operation according to the dehydration curve, and the sensor module detects the low-speed eccentricity in real time; step S4, determining whether the detected low-speed eccentricity exceeds a limit value;

Step S5, if the determination result is yes, the low speed eccentricity correction operation is performed, and if the determination result is no, the process proceeds to the next step;

Step S6, performing a high-speed dehydration operation, and the sensor module detects the high-speed eccentricity in real time;

Step S7, determining whether the high-speed eccentricity of the high-speed dehydration operation exceeds a limit value;

In step S8, if the result of the determination is YES, the high-speed eccentricity correcting operation is performed, and if the result of the determination is negative, the high-speed dehydration operation is ended.

Further, the low speed eccentricity correction action in the step S5 includes the following steps:

Step S51, the low speed dehydration operation stops;

Step S52, correcting the dehydration curve;

In step S53, the low-speed dehydration operation is executed based on the corrected dehydration curve, and the process returns to step S3.

Further, in the step S5, the low-speed eccentricity correction operation is performed at most N times, and the N satisfies: 0 < N10.

Further, when the low speed eccentricity correction action is performed more than N times in the step S5, the following steps are performed:

Step S54, performing a water injection washing correction action;

Step S55, performing a drainage action;

In step S56, the process returns to step SI.

Further, the step S54 is performed at most M times, and the M times satisfy: 0 < M 10, and if the number of times executed in step S54 is greater than M, an alarm action is performed.

Further, the high speed eccentricity correcting action in the step S8 includes the following steps:

Step S81, performing speed and acceleration correction actions, and the sensor module detects the high-speed eccentricity in real time; step S82, determining whether the high-speed eccentricity exceeds the limit value; Step S83, if the determination result is yes, the deceleration eccentricity correction is performed, and the process proceeds to the next step. If the determination result is no, the high-speed dehydration operation ends;

Step S84, ending with the lower speed dehydration operation.

Further, the sensor module includes a six-axis sensor, and the six-axis sensor includes a three-axis accelerometer and a three-axis gyroscope, and the three-axis accelerometer senses linear acceleration and tilt angle of the outer tub, and can sense Combining the magnitude and direction of linearity and gravity acceleration; the three-axis gyroscope senses the rotational angular velocity of the outer tub, and tracks the moving direction and rotation of the outer tub.

Further, the sensor module further includes an operation control chip, and the operation control chip: the detection data and the outer tub and the box according to the triaxial acceleration and the three-axis gyroscope in the eccentricity detection test dehydration action and the low-speed dehydration action phase The distance relationship between the bodies, the eccentricity limit data is corrected, and the dehydration curve algorithm that does not hit the barrel is analyzed;

In the high-speed dehydration action phase or the lower-speed dehydration action phase, the dehydration curve of the acceleration and velocity values is corrected by the algorithm, and the three-axis acceleration and the three-axis gyroscope data are corrected in real time to maintain the non-collision state until the dehydration process ends.

Further, the sensor module is installed at the bottom of the outer tub, or is installed on the side of the outer tub, or is installed at the boom.

Further, the real-time detection position of the sensor module is disposed at at least one clock point on the upper portion of the outer tub, and/or in the middle of the outer tub, and/or on the lower portion of the outer tub, preferably, the real-time detection position of the sensor module They are respectively set at 8 clock points at the upper, middle and lower heights of the outer tub.

The invention also provides a washing machine adopting the above method, comprising an eccentricity detecting device, wherein the eccentricity detecting device comprises a control module, a motor driving module and a sensor module, wherein the motor driving module and the sensor module are respectively connected to the control module, the motor The drive module and the sensor module communicate in real time through the control module.

The invention also provides a washing machine adopting the above method, comprising: a main control module and a function control module, wherein each function control module is respectively connected with a corresponding load; the function control module comprises a sensor module; the sensor module and the sensor module The main control modules are independently arranged; the main control module and the sensor module are respectively connected to the data bus and the power bus; the sensor module corresponding to the sensor module is an acceleration sensor for unbalance detection of the washing machine, or a six-axis sensor, or Nine-axis sensor.

Further, the sensor module load is disposed at the bottom of the outer tub, or disposed on the outer side wall of the outer tub, or at the boom; the sensor module is disposed on or near the load of the sensor module. Further, the function control module further includes at least a motor control module, a water inlet control module, and a drain control module; at least one of the function control modules is independently set with the main control module; the main control module and each independently set The function control module is respectively connected to the data bus and the power bus; preferably, all of the function control modules are respectively disposed independently of the main control module.

Further, the function control module further includes: a door lock control module, a drying control module, an automatic delivery control module, a heating control module, or a combination of at least two.

The unbalance detection method of the washing machine of the invention realizes the active real-time eccentricity detection of the washing machine by using the six-axis sensor, so the detection result is more accurate and timely, and at the same time, the real-time detection of the sensor helps the control module of the washing machine to perform eccentricity according to the detection result in time. Corrected. Therefore, the detection method of the invention is more accurate, the dehydration efficiency is improved, the "bumping bucket" phenomenon of the washing machine is avoided, and the service life of the washing machine is prolonged.

Specifically, the present invention has the following technical effects:

1) After the invention enters the dehydration timing, the eccentricity detection dehydration operation is first performed. When the operation is performed, the sensor module performs eccentricity detection in real time, and the control module of the washing machine preliminarily sets the initial dehydration curve according to the eccentricity detection result. Therefore, the initial dehydration curve of the present invention takes into account the initial eccentricity of the washing machine, more in line with the actual situation, and greatly reduces the probability of formal dehydration eccentricity.

2) The invention divides the dehydration process into a low-speed dehydration stage and a high-speed dehydration stage, and performs eccentricity detection in both the low-speed dehydration stage and the high-speed dehydration stage, and does not enter the high-speed dehydration stage when the eccentric amount in the low-speed dehydration stage is not corrected, therefore, The eccentricity detecting method of the invention is more accurate and more timely, and can effectively prevent the washing machine from being damaged due to eccentricity.

3) The invention mainly performs two kinds of eccentricity correction modes in the low-speed dehydration stage, one is to stop the low-speed dehydration, and then the dehydration curve is corrected by the sensor module, and the eccentricity correction is started again in the low-speed dehydration stage; the other is the first eccentricity correction. After the method has been invalidated multiple times, the water-washing correction is used, and then the water injection is discharged to re-enter the dehydration process. Therefore, the eccentricity correction of the present invention adopts different eccentricity correction methods according to different stages and different eccentricities, so that the eccentricity correction of the present invention is more effective.

4) The eccentricity correction of the present invention mainly concentrates on the low-speed dehydration stage. When the low-speed dehydration stage is not eccentric, it directly enters the high-speed dehydration stage, and when the eccentricity of the low-speed dehydration stage is not corrected, it does not enter the high-speed dehydration stage, thus ensuring high-speed dehydration. The stage goes smoothly and is safer.

5) The high-speed dehydration stage of the present invention simultaneously performs eccentricity detection, and when high eccentricity occurs, high-speed eccentricity correction is performed. Since the eccentricity of the low-speed dehydration stage has reached the requirement, the high-speed eccentricity correction of the high-speed dehydration stage is compared. For simplicity, it is mainly realized by correcting the operation of acceleration and speed. When the correction method cannot achieve the correction effect, the dehydration is performed by reducing the dehydration speed. Therefore, the high-speed dehydration stage of the invention can be carried out safely and accurately, and the possibility of excessive eccentricity in the high-speed dehydration stage is effectively avoided, and the dehydration process is ensured smoothly.

6) The invention uses a six-axis sensor to detect the eccentricity of the washing machine, realizes an active real-time detection of the eccentric amount of the washing machine, and the three-axis acceleration sensor of the six-axis sensor senses the linear acceleration and the tilt angle, and the three-axis gyroscope senses The rotation angle, therefore, the six-axis sensor used in the present invention not only can detect the linear acceleration and the tilt angle of the outer barrel in real time, but also can avoid the rotation angle caused by the rotation of the inner barrel to the utmost extent, so that the present invention The results of the test are more accurate.

7) The real-time detection position of the sensor module of the present invention is set at eight clock points of three heights at the upper, middle and lower portions of the outer tub, so that the detection result is more accurate and the reaction is more rapid. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a flowchart of program control of the present invention;

Figure 2 is a dehydration graph of the present invention;

Figure 3 is a schematic view of a sensor module of the present invention;

Figure 4 is a schematic diagram of the control device of the present invention;

Figure 5 is a schematic view showing the composition of the MEMS sensor of the present invention;

Figure 6 is a schematic view showing the position of the eccentricity test of the present invention;

Figure 7 is a schematic view showing the tilt angle test of the box body of the present invention;

Figure 8 is a schematic structural view of a washing machine of the present invention;

Figure 9 is a schematic diagram of the power bus connection of the washing machine of the present invention;

Figure 10 is a schematic diagram showing the data bus connection of the washing machine of the present invention.

The figures in the figure illustrate: 1 a main control module, 2 - power bus, 3 - data bus, 4 a water inlet control module, 5 - drainage control module, 6 - door lock control module, 7 - drying control module, 8 - Automatic delivery control module, 9 heating control module, 10—motor control module, 11-control panel, 12 power adapter, 13-sensor module, 41 inlet valve, 51-drain valve, 61 door lock, 71-drying assembly, 81—Automatic delivery module, 91-heating wire, 101-load motor, 131-sensor module load. detailed description

A method for detecting imbalance of a washing machine of the present invention will be described in detail below with reference to the accompanying drawings: As shown in FIG. 1 , a flowchart of a program control method for a method for detecting imbalance of a washing machine according to the present invention includes the following steps:

Step Sl, running the dehydration timing, and performing the eccentricity detection test dehydration operation.

After the washing machine enters the dehydration timing, the eccentricity detection test dehydration operation is first performed, and the eccentricity detection test dehydration operation is for detecting the eccentricity state at the initial stage of the washing machine entering the dehydration timing. The eccentricity detection test dehydration action is a slight rotation of the inner tub of the washing machine. At the moment of rotation, the sensor detection module immediately performs the eccentricity detection of the washing machine to obtain the initial eccentricity. Since the eccentricity detecting method of the present invention includes the eccentricity detecting test dehydrating action, the present invention can avoid the phenomenon that the "bumping bucket" occurs due to the excessive eccentricity of the washing machine just entering the dehydration stage, and this phenomenon is existing in the existing The dehydration phase is unavoidable and the frequency of occurrence is very high.

Step S2, the sensor module performs an eccentricity detection operation to detect the eccentricity of the machine in real time, and initially sets a dehydration curve.

The washing machine of the present invention is provided with a sensor module for detecting an eccentric amount, and the sensor module of the present invention can perform an active real-time detection of the eccentric amount of the washing machine. The sensor module detects the eccentricity detecting dehydration action, obtains the initial eccentricity of the outer tub of the washing machine, and initially sets the dehydration curve according to the initial eccentric amount. The dehydration curve initially set by the present invention is a theoretical curve of the dehydration stage, and generally includes an eccentricity detection test dehydration stage, a low-speed dehydration stage, and a high-speed dehydration stage, but in the actual dehydration process, since the eccentric amount is corrected, therefore, The preliminary set dehydration curve will also be corrected to ensure the smooth progress of the dehydration stage. The dehydration curve initially set by the invention can be selected according to the initial eccentricity of the washing machine to obtain the most suitable dehydration speed, to ensure the smooth dehydration, and to avoid the eccentric "crashing barrel" phenomenon.

In step S3, the low-speed dehydration operation is performed, and the sensor module detects the low-speed eccentricity in real time.

The invention performs the low-speed dehydration operation into the low-speed dehydration stage, and the sensor module performs the eccentricity detection in real time in the low-speed dehydration stage. The first time the invention enters the low-speed dewatering stage according to the preliminary set dehydration curve, after the eccentricity correction is performed in the low-speed dehydration stage, the preliminary set dehydration curve is correspondingly corrected, and then enters the low-speed dehydration stage again according to the corrected dehydration curve. .

In step S4, it is determined whether the detected low speed eccentricity exceeds a limit value.

The setting of the limit value of the present invention needs to be obtained through corresponding experiments. Due to different models, the limit values of different types of washing machines may be different, and the limit value is the eccentricity of the outer tub when the washing machine is dehydrated, which causes the outer bucket to hit the box. Tilt angle value.

In step S5, if the determination result is yes, the low-speed eccentricity correction operation is performed, and if the determination result is no, the entry is made. The next step.

In step S6, the high-speed dehydration operation is performed, and the sensor module detects the high-speed eccentricity in real time.

In step S7, it is judged whether the high-speed eccentricity of the high-speed dehydration operation exceeds a limit value.

The unbalance detection method of the invention divides the dehydration process into three stages: The eccentricity detection test dehydration stage mainly obtains the initial eccentricity by trial dehydration, and initially determines the dehydration curve; the low-speed dehydration stage performs the eccentricity detection and correction. In the main stage, and the eccentric amount of the low-speed dewatering stage is not corrected, it will not enter the high-speed dehydration stage; the high-speed dehydration stage is the main stage of dehydration, and the high-speed dehydration stage also performs eccentricity detection and correction, which should be understood by those skilled in the art. Yes, since the eccentric amount has been met to meet the requirements in the low-speed dewatering stage, the dewatering is completed in the high-speed dehydration stage.

Therefore, the unbalance detection method of the present invention can perform eccentricity detection and correction in an active real-time manner, and perform targeted eccentricity detection and correction in different dehydration stages, so the imbalance detection method of the present invention is more precise and more sensitive.

As a preferred embodiment of the present invention, the present invention simultaneously discloses an eccentricity correction method performed in a low-speed dehydration stage. Specifically, the low-speed eccentricity correction operation in the step S5 includes the following steps:

Step S51, the low speed dehydration operation stops;

Step S52, correcting the dehydration curve;

Step S53, the low-speed dehydration operation is executed based on the corrected initial dehydration curve, and the process returns to step S3.

In the invention, when the eccentricity detected by the sensor is greater than the limit value, that is, when there is a tendency to hit the barrel or hit the barrel, the control module stops the motor action, and the sensor module will correct the dehydration curve again, and re-enter the low-speed dehydration stage according to the modified dehydration curve. .

As a preferred embodiment of the present invention, the low-speed eccentricity correction operation in step S5 of the present invention is performed at most N times, and the N satisfies: 0 < N 10 _; preferably, N = 3 times.

As a preferred embodiment of the present invention, when the above steps 551-S53 still cannot solve the problem that the eccentricity is greater than the limit value, that is, when the low-speed eccentricity correction action is performed more than N times in the step S5 , then perform the following steps:

Step S54, performing a water injection washing correction action;

Step S55, performing a drainage action; In step S56, the process returns to step S1. As a preferred embodiment of the present invention, step S54 of the present invention is performed at most M times, and the M times satisfy: 0 < M 10, preferably, M = 3 times. If the number of times executed in step S54 is greater than M, an alarm action is performed.

The above eccentricity correction method is that the control module commands the inlet valve to enter the water, and the method of re-washing balances the eccentricity; after the balance, the drainage again re-runs the dehydration timing, and if the water inlet correction is repeated three times, the control module will alarm.

The above two methods of eccentricity correction in the low-speed dehydration stage can be analyzed. The low-speed dehydration stage of the present invention enters the high-speed dehydration stage only when the eccentricity is less than the limit value. When the eccentricity cannot be corrected, the alarm is issued, and the user The alarm is manually eccentrically balanced or related to maintenance. Therefore, the present invention can avoid "crashing the bucket" due to excessive eccentricity in the high-speed dewatering stage, and the "bumping bucket" in the high-speed dewatering stage tends to cause damage to the washing machine casing.

In order to further ensure the smooth progress of the dehydration stage, the present invention simultaneously performs eccentricity detection and eccentricity correction in the high-speed dehydration stage. As a preferred embodiment of the present invention, the high-speed eccentricity correction operation in the step S8 of the present invention includes the following Steps:

Step S81, performing speed and acceleration correction actions, and the sensor module detects the high-speed eccentricity in real time; Step S82, determining whether the high-speed eccentricity exceeds the limit value;

Step S83, if the determination result is YES, perform the deceleration eccentricity correction, and proceed to the next step. If the determination result is no, the high-speed dehydration operation ends;

Step S84, ending with the lower speed dehydration operation.

The correction result of the high-speed dehydration stage of the present invention is finally terminated by a high-speed dehydration operation or a lower-speed operation, which is mainly because the eccentric amount of the low-speed dehydration stage of the present invention enters the high-speed dehydration stage only when the limit value is satisfied. Therefore, strictly speaking, the high-speed eccentricity correcting action of the present invention is to further ensure the smooth completion of dehydration. The lower speed dewatering operation mentioned in the present invention means that the rotation speed of the dewatering is slightly smaller than the rotation speed of the originally set high speed dewatering stage, but the lower rotation speed can still satisfy the dewatering requirement, and the "bumping bucket" phenomenon does not occur. Therefore, the eccentricity correction of the high-speed dehydration stage of the present invention is mainly realized by the control module instructing the motor drive module to correct the acceleration and speed.

As shown in FIG. 2, it is a dehydration graph of the present invention, wherein:

Section 0-a: eccentricity detection test dehydration action;

Part a-b: the motor stops;

Part bc: The motor accelerates into the low-speed dehydration stage; Cd part: low speed dehydration stage, motor running at low speed;

Part d-e: The motor accelerates into the high-speed dehydration stage;

E-f part: High-speed dehydration stage, high-speed motor running.

It should be understood by those skilled in the art that the dehydration curve is only an example curve. In actual operation, the dehydration curve is different because of the actual dehydration. For example, the motor in the ab stage will not stop, the motor will decelerate to a certain value or directly enter the low-speed dehydration stage from the trial dewatering stage; from the low-speed dehydration stage of cd to the high-speed dehydration stage of ef, multiple adjustments are required, and gradually enter, and In the non-this curve, it is accelerated from the low-speed dehydration stage to the high-speed dehydration stage.

As shown in FIG. 3, the sensor module of the present invention is divided into two parts: a MEMS sensor and an operation control chip. As a preferred embodiment of the present invention, the MEMS sensor includes a six-axis sensor, and the six-axis sensor includes three-axis acceleration. And a three-axis gyroscope, the three-axis accelerometer senses the linear acceleration and the tilt angle of the outer tub, and can sense the amplitude and direction of the linear and gravitational acceleration; the three-axis gyroscope senses the rotation of the outer tub Angular velocity, tracking the direction and rotation of the outer bucket.

As another preferred embodiment of the present invention, the MEMS sensor comprises a nine-axis sensor consisting of a three-axis accelerometer, a three-axis gyroscope and a three-axis magnetometer, such as a magnetometer. As shown in Fig. 5, the three-axis accelerator senses the linear acceleration and tilt angle of the outer tub, and can sense the amplitude and direction of the linear and gravitational acceleration; the three-axis gyroscope senses the rotational angular velocity of the outer tub, and tracks the moving direction of the outer tub. Rotating action; The three-axis magnetometer senses the direction of advancement of the outer tub.

The operation control chip of the invention:

In the eccentricity detection test dehydration action and the low-speed dehydration action phase, according to the three-axis acceleration and the detection data of the three-axis gyroscope and the distance relationship between the outer tub and the cabinet, the eccentricity limit data is corrected, and the non-impact bucket is analyzed. Dehydration curve algorithm;

As a preferred embodiment of the present invention, the sensor module of the present invention is mounted on the bottom of the outer tub, or on the side of the outer tub, or at the boom. Since the working principle of the sensor module of the present invention is different from the detection principle of the existing detecting method, the mounting method of the sensor module of the present invention is more simple and flexible.

In order to further increase the accuracy of detection, as shown in FIG. 6, the real-time detection of the sensor module of the present invention The position is disposed at at least one clock point on the upper portion of the outer tub, and/or in the middle of the outer tub, and/or on the lower portion of the outer tub. Preferably, the real-time detecting positions of the sensor modules are respectively disposed in the upper, middle and lower portions of the outer tub. 8 clock points in height.

In actual use, the cabinet of the washing machine may be tilted due to the uneven position of the placement, so the variable needs to be taken into account in the actual eccentricity limit value, as shown in Fig. 7, the eccentric amount according to the present invention. The limit value also depends on the tilt angle α of the cabinet horizontally placed, 0< ct 10°, the limit value is valid only when the tilt angle α of the cabinet satisfies this range, when the tilt angle is too large The limit value no longer applies.

As shown in FIG. 4, a washing machine using the unbalance detecting method of the present invention includes an eccentricity detecting device, and the eccentricity detecting device includes a control module, a motor driving module and a sensor module, and the motor driving module and the sensor The modules are respectively connected to the control module, and the motor drive module and the sensor module communicate in real time through the control module.

The control module is responsible for controlling the motor drive module and the sensor module; the motor drive module is responsible for the feedback of the real-time speed of the motor; the sensor module is responsible for detecting the eccentricity and correcting the dehydration acceleration and speed.

Example 1

As shown in FIG. 8, an unbalanced detecting washing machine of the present invention comprises: a main control module 1 and a function control module, wherein each function control module is respectively connected with a corresponding load; the function control module includes a sensor module 13; The sensor module 13 and the main control module 1 are disposed independently of each other; the main control module 1 and the sensor module 13 are respectively connected to the data bus 3 and the power bus 2; the sensor module load 131 corresponding to the sensor module 11 is used for the washing machine Unbalanced detection of an accelerometer, or a six-axis sensor, or a nine-axis sensor.

As a preferred embodiment of the present invention, the function control module further includes at least a motor control module 10, a water inlet control module 4, and a drain control module 5; at least one of the function control modules and the main control module 1 are mutually The main control module 1 and the independently set function control modules are respectively connected to the data bus 3 and the power bus 2; preferably, all of the function control modules are respectively disposed independently of the main control module 1.

In this embodiment, each function control module is respectively connected with a corresponding load; each functional module is respectively installed on a corresponding load or close to a corresponding load. The load of the main control module 1 is the control panel 11, and the circuit board provided with the main control module 1 is installed at the control panel 11. The control panel 11 further includes a human-machine interaction device such as a button, a digital tube, and an LCD display. The load of the main control module 1 is a function control module for processing and analyzing the human-machine communication information reflected by the control panel 11 and the information fed back by each function control module, and then issuing a command signal to each function control module. Each function control module controls the corresponding load according to the corresponding command signal. In this embodiment, the load of the motor control module 10 is a load motor 101, and the load motor 101 is any one of a series motor, a variable frequency motor or a DD direct drive motor. The motor control module 10 is disposed on a separate circuit board or on a control circuit board. Preferably, a separate circuit board provided with the motor control module 10 is mounted on or near the load motor 101; further preferred The motor control module 10 is a smart computer board mounted on the load motor 10.

In this embodiment, the load of the water inlet control module 4 is a water inlet component for controlling the on/off state of the water inlet pipe. In this embodiment, the water inlet module is configured as an inlet valve 41, and the water inlet control module 4 is disposed on an independent circuit board or on a control circuit board; preferably, the water inlet control module 4 is provided. The separate circuit board is mounted adjacent to the water inlet valve 41; further preferably, the water inlet control module 4 is a smart computer board mounted adjacent to the water inlet valve 41.

In this embodiment, the load of the drain control module 5 is a load drain assembly, and the load drain assembly is a drain pump and/or a drain valve 51 for controlling the opening and closing of the drain pipe. In this embodiment, the load is The load drain assembly is a drain valve 51. The drain control module 5 is disposed on a separate circuit board or on a control circuit board. Preferably, a separate circuit board provided with the drain control module 5 is mounted adjacent to the drain valve 51; further preferably, the drain is The control module 5 is a smart computer board mounted near the drain valve 51.

In this embodiment, the independent circuit boards are independent circuit boards that are separated from the control circuit board. Thereby, the corresponding function control module of each load is independently set, which simplifies the steps of repairing and replacing the circuit board, and improves the maintenance and production efficiency of the washing machine.

In this embodiment, the motor control module 10, the water inlet control module 4, and the drain control module 5 are respectively provided with a data bus terminal and a power bus terminal; the data bus terminals of each function control module are respectively connected to the data bus 3; The power bus terminals are respectively connected to the power bus 2.

By connecting the power bus terminals of each function control module to the power bus, each function control module controls the on/off of the power bus and each load, so that the corresponding load obtains power and operates. At the same time, by connecting the data bus terminal of each function control module with the data bus, the human-computer interaction information obtained by the main control module is transmitted to the function control module to control the action state of the corresponding load; or the action information of each load is Feedback to the main control module to achieve information transfer between the main control module and each functional control module.

As shown in FIG. 9, in the embodiment, the power adapter 12 of the washing machine extends the power bus 2 into the casing of the washing machine. The power bus 2 sequentially passes through the control panel 11, the sensor module load 131, the inlet valve 41, and the load. Motor 101 and drain valve 51. The power bus 2 is on the control panel 11, the sensor module load 131, and the water inlet The valve 41, the load motor 101 and the drain valve 51 are respectively provided with corresponding ports, and each port is respectively associated with the corresponding main control module 1, the sensor module 13, the water inlet control module 4, the motor control module 10 and the drainage control module 5. The terminals are connected. The main control module 1, the sensor module 13, the water inlet control module 4, the motor control module 10 and the drainage control module 5 are sequentially connected in series through the power bus, thereby realizing the power of each function control module disposed on or near the load. distribution. In this embodiment, the main control module and each function control module may also be connected in series via a power bus in any order.

As shown in FIG. 10, in the embodiment, the control panel on the upper part of the washing machine extends the data bus 3 into the casing of the washing machine, and the data bus 3 sequentially passes through the sensor module load 131, the inlet valve 41, the load motor 101, and the drainage. Valve 51. The data bus 3 is respectively provided with corresponding ports at the sensor module load 131, the inlet valve 41, the load motor 101 and the drain valve 51, and each port is respectively associated with the corresponding sensor module 13, the water inlet control module 4, and the motor. The control module 10 is connected to the terminals of the drain control module 5. The main control module 1, the sensor module 13, the water inlet control module 4, the motor control module 10 and the drainage control module 5 are sequentially connected in series through the data bus, thereby realizing the setting between each functional control module disposed on or near the load. Information transfer. In this embodiment, the main control module and each function control module may also be connected in series via a data bus in any order.

As a preferred embodiment of the present invention, the function control module further includes: a door lock control module 6, a drying control module 7, an automatic delivery control module 8, a heating control module 9, or a combination of at least two.

As a preferred embodiment of the present invention, the load of the drying control module 7 is each drying component 71 constituting the laundry drying system; the drying control module 7 can be disposed on a separate circuit board or It is set on the control circuit board. Preferably, the drying control module 7 is an intelligent control computer board installed near the drying component for controlling the working state of the washing machine drying assembly 71. The intelligent control computer board constituting the drying control module 7 is directly connected to the drying unit.

In this embodiment, the data bus 3 passes through the control panel 11, the drying unit 71, the water inlet valve 41, the load motor 101, and the drain valve 51 in sequence. The data bus 3 is respectively provided with corresponding ports at the respective loads, and each port is respectively connected to the terminals of the corresponding drying control module 7, the water inlet control module 4, the motor control module 10 and the drainage control module 5. The data bus connects the main control module, the drying control module, the water inlet control module, the motor control module and the drainage control module in series, thereby realizing the information transmission between the function control modules disposed on or near the load. . In this embodiment, the main control module and each function control module may be connected in series via a data bus in any order.

In this embodiment, the power adapter 12 of the washing machine extends out of the casing of the washing machine to the power bus 2, The power bus 2 sequentially passes through the control panel 11, the drying unit 71, the water inlet valve 41, the load motor 101, and the drain valve 51. The power bus 2 is respectively provided with corresponding ports at the respective loads, and each port is respectively associated with a corresponding main control module 1, a drying control module 7, a water inlet control module 4, a motor control module 10, and a drainage control. The terminals of module 5 are connected. The main control module, the drying control module, the water inlet control module, the motor control module and the drainage control module are connected in series through the power bus, thereby realizing the power distribution of each function control module disposed on or near the load. In this embodiment, the main control module and each function control module may also be connected in series via a power bus in any order.

As a preferred embodiment of the present invention, the automatic placement control module 8 may be disposed on an independent circuit board or on a control circuit board; the load of the automatic placement control module 8 is to control the detergent box 82. Automatic delivery module 81 delivered. In this embodiment, the automatic delivery module 81 is composed of an automatic dispenser, and the automatic dispenser is connected to the outer tub of the washing machine via a delivery pipeline, and the delivery pipeline is provided with a control valve. Preferably, the automatic delivery control module 8 is an intelligent control computer board installed near the control valve for controlling the amount of laundry detergent and/or washing powder and/or softener to be applied to the washing machine. The intelligent control computer board constituting the automatic placement control module 8 is directly connected to the control valve constituting the automatic delivery module 81.

In this embodiment, the data bus 3 passes through the control panel 11, the automatic dispensing module 81 of the detergent box, the water inlet valve 41, the load motor 101, and the drain valve 51 in sequence. The data bus 3 is respectively provided with corresponding ports at the respective loads, and each port is respectively connected to the terminals of the corresponding automatic placement control module 8, the water inlet control module 4, the motor control module 10 and the drainage control module 5. The data bus connects the main control module, the automatic delivery control module, the water inlet control module, the motor control module and the drainage control module in series, thereby realizing the information transmission between the function control modules disposed on or near the load. . In this embodiment, the main control module and each function control module may also be connected in series via a data bus in any order.

In this embodiment, the power adapter 2 of the washing machine extends the power bus 2 into the casing of the washing machine. The power bus 2 passes through the control panel 11, the automatic delivery module 81 of the detergent box 82, the water inlet valve 41, and the load motor 101. And a drain valve 51. The power bus 2 is respectively provided with corresponding ports at the respective loads, and each port is respectively associated with a corresponding main control module 1, an automatic delivery control module, a water inlet control module 4, a motor control module 10, and a drainage control module. The terminals of 5 are connected. The main control module, the automatic delivery control module, the water inlet control module, the motor control module and the drainage control module are connected in series through the power bus, thereby realizing the power distribution of each function control module disposed on or near the load. In this embodiment, the main control module and each function control module may also be connected in series via a power bus in any order. As a preferred embodiment of the present invention, the heating control module 9 can be disposed on a separate circuit board or on a control circuit board. The load of the heating control module is a heating component in the heating system. The heating assembly includes any one of a heating element such as a heating wire 91, a heating tube or a heat pump system. In this embodiment, preferably, the heating component is a heating wire 91. Further preferably, the heating wire 91 is disposed in the water inlet pipe to heat the inflow water flow. The heating control module 9 is an intelligent control computer board installed near the heating wire 91 for controlling the heating state of the heating assembly of the washing machine. The intelligent control circuit constituting the heating control module 9 is directly connected to the heating wire 91.

In this embodiment, the data bus 3 passes through the control panel 11, the water inlet valve 41, the heater wire 91, the load motor 101, and the drain valve 51 in sequence. The data bus 3 is respectively provided with corresponding ports at the respective loads, and each port is respectively connected with a terminal of the corresponding water inlet control module 4, the heating control module 9, the motor control module 10 and the drainage control module 5, The data bus connects the main control module, the water inlet control module, the heating control module, the motor control module and the drainage control module in series, thereby realizing the information transmission between the function control modules disposed on or near the load. In this embodiment, the main control module and each function control module may also be connected in series via a data bus in any order.

In this embodiment, the power adapter 2 of the washing machine extends the power bus 2 into the casing of the washing machine. The power bus 2 passes through the control panel 11, the water inlet valve 41, the heating wire 91, the load motor 101 and the drain valve 51 in sequence. . The power bus 2 is respectively provided with corresponding ports at the respective loads, and each port is respectively associated with a corresponding main control module 1, a water inlet control module 4, a heating control module 9, a motor control module 10, and a drainage control module. The terminals of 5 are connected. The main control module, the water inlet control module, the heating control module, the motor control module and the drainage control module are connected in series through the power bus, thereby realizing the power distribution of each function control module disposed on or near the load. In this embodiment, the main control module and each function control module may also be connected in series via the power bus in any order.

As a preferred embodiment of the present invention, at least one of the function control module and the main control module 1 in the above embodiment is disposed on the control circuit board, and each function control module disposed on the control circuit board together with the main control module 1 respectively The cable is connected to the corresponding load. At the same time, the control circuit board with the main control module and the at least one function control module is respectively connected in series via the power bus and the data bus, and the other function control modules disposed on the circuit board relatively independent from the control circuit board are connected in series, A separate circuit board with each functional control module is mounted on or near the corresponding load.

Because the main control module 1 and the function control modules commonly disposed on the control circuit board are connected to each other via the connection circuit, And the main control module 1 and each function control module are respectively connected to the power bus via the power bus terminal, and connected to the data bus via the data bus terminal, so that the main control module 1 and each function control module disposed on the control circuit board respectively It is connected in series with other function control modules on the independent circuit board to achieve the effect of connecting the main control module 1 and each function control module, and realizes the purpose of data transmission and power control between the modules.

The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Although the present invention has been disclosed above by way of preferred embodiments, it is not intended to limit the invention. Those skilled in the art can make some modifications or modifications to equivalent embodiments by using the technical content of the above-mentioned hints, without departing from the technical solution of the present invention, the technology according to the present invention. Any simple modifications, equivalent changes and modifications made to the above embodiments are still within the scope of the present invention.

Claims

Claim

A washing machine imbalance detecting method, characterized in that the method comprises the following steps:

2. The washing machine imbalance detecting method according to claim 1, wherein the low speed eccentricity correcting action in the step S5 comprises the following steps:

Step S51, the low speed dehydration operation stops;

Step S52, correcting the dehydration curve;

The washing machine imbalance detecting method according to claim 2, wherein the low speed eccentric amount correcting operation is performed at most N times in the step S5, and the N satisfies: 0 < N10.

4. The washing machine imbalance detecting method according to claim 3, wherein, in the step S5, when the low speed eccentricity correction operation is performed more than N times, the following steps are performed:

Step S54, performing a water injection washing correction action;

Step S55, performing a drainage action;

In step S56, the process returns to step SI.

The washing machine imbalance detecting method according to claim 4, wherein the step S54 is performed at most M times, and the M times satisfy: 0 < M 10, if the number of times executed in step S54 is greater than M, then perform an alarm action.

6. The method of detecting imbalance of a washing machine according to claim 1, wherein: said step The high speed eccentric correction action in S8 includes the following steps:

Step S84, ending with the lower speed dehydration operation.

7. The washing machine imbalance detecting method according to claim 1, wherein the sensor module comprises a six-axis sensor, and the six-axis sensor comprises a three-axis accelerometer and a three-axis gyroscope, The three-axis accelerometer senses the linear acceleration and tilt angle of the outer tub, and can sense the amplitude and direction of the linear and gravitational acceleration; the three-axis gyroscope senses the rotational angular velocity of the outer tub, and tracks the moving direction and rotation of the outer tub. action.

The method for detecting imbalance of a washing machine according to claim 7, wherein the sensor module further comprises an operation control chip, and the operation control chip:

9. The method according to claim 1, wherein the sensor module is installed at the bottom of the outer tub, or is mounted on the side of the outer tub or at the boom.

10 . The washing machine imbalance detecting method according to claim 1 , wherein the real-time detecting position of the sensor module is disposed on an upper portion of the outer tub, and/or a middle portion of the outer tub, and/or a lower portion of the outer tub At least one clock point, preferably, the real-time detection positions of the sensor modules are respectively disposed at eight clock points of three heights of the upper, middle and lower portions of the outer tub.

A washing machine using the method according to any one of claims 1 to 10, characterized in that it comprises an eccentricity detecting device, the eccentricity detecting device comprising a control module, a motor drive module and a sensor module, the motor The driving module and the sensor module are respectively connected to the control module, or the motor driving module and the sensor module communicate in real time through the control module.

12. A washing machine using the method of any of claims 1-10, comprising: a main control module (1) And the function control module, each function control module is respectively connected to the corresponding load; the function control module comprises a sensor module (13); the sensor module (13) and the main control module (1) are independent of each other The main control module (1) and the sensor module (13) are respectively connected to the data bus (3) and the power bus (2); the sensor module load (131) corresponding to the sensor module (11) is used for the washing machine Unbalanced detection of an accelerometer, or a six-axis sensor, or a nine-axis sensor.

The washing machine for unbalance detection according to claim 12, wherein the sensor module load (131) is disposed at the bottom of the outer tub, or at the side wall of the outer tub, or at the boom; The sensor module (11) is disposed on or near the sensor module load (131).

The washing machine for unbalance detection according to claim 12, wherein the function control module further comprises at least a motor control module (10), a water inlet control module (4) and a drainage control module (5). At least one of the function control modules is independently set with the main control module (1); the main control module (1) and the independently set function control modules are respectively associated with the data bus (3) and the power bus (2) Connection; Preferably, all of the described function control modules are independently arranged from the main control module (1).

The washing machine for unbalance detection according to any one of claims 12-14, wherein: the function control module further comprises: a door lock control module (6) and a drying control module (7) , one of the automatic placement control module (8), the heating control module (9), or a combination of at least two.