CN111676656A

CN111676656A - Horizontal adjustment reminding method, device and system for washing machine

Info

Publication number: CN111676656A
Application number: CN202010480009.2A
Authority: CN
Inventors: 胡波清
Original assignee: Guangdong Lanshuihua Intelligent Electronic Co ltd
Current assignee: Guangdong Lanshuihua Intelligent Electronic Co ltd
Priority date: 2020-05-30
Filing date: 2020-05-30
Publication date: 2020-09-18
Anticipated expiration: 2040-05-30
Also published as: CN111676656B

Abstract

The invention belongs to the technical field of washing machines, and particularly relates to a horizontal adjustment reminding method, a horizontal adjustment reminding device and a horizontal adjustment reminding system for a washing machine, wherein the horizontal adjustment reminding method comprises the following steps: acquiring actual acceleration parameter information of the washing machine; obtaining the information of the inclination direction of the washing machine according to the actual acceleration parameter information; and obtaining inclination adjustment prompt information according to the washing machine inclination direction information, wherein the inclination adjustment prompt information is used for prompting a user to perform inclination adjustment on the washing machine. The invention reminds the user of an effective method when the washing machine needs to be adjusted to be in a horizontal state, and enables the user to know how to adjust the washing machine more easily through the inclination adjustment prompting information, thereby improving the efficiency of adjusting the washing machine to be in the horizontal state and realizing the adjustment of efficient and accurate adjustment.

Description

Horizontal adjustment reminding method, device and system for washing machine

Technical Field

The invention belongs to the technical field of washing machines, and particularly relates to a horizontal adjustment reminding method, device and system for a washing machine.

Background

The washing machine has extremely high requirements on whether the washing machine is placed horizontally when washing, and if the washing machine is placed unevenly to cause the box body of the washing machine to incline, the washing efficiency is greatly influenced to cause the problem of incomplete washing; on the other hand, the washing machine is difficult to avoid vibration during operation, and the body of the additional washing machine is inclined, so that the side turning of the washing machine is easy to cause, and the safety performance is low.

At present, there is a method for detecting whether a washing machine is placed horizontally in the market, that is, by detecting whether the washing machine is placed horizontally, when it is detected that the washing machine is placed horizontally, the washing operation can be started. And if the washing machine is not horizontally placed, reminding a user of horizontally adjusting the washing machine.

However, the current washing machine has a function of reminding a user of adjusting the washing machine, but the user does not know how to adjust the washing machine, so that the user can only adjust the washing machine by observing the inclination direction of the washing machine, thereby causing a technical problem of low adjustment efficiency. Therefore, it is necessary to design a method, an apparatus and a system for reminding horizontal adjustment of a washing machine.

Disclosure of Invention

The invention aims to provide a method, a device and a system for reminding horizontal adjustment of a washing machine, and aims to solve the technical problem of low adjustment efficiency when the washing machine is adjusted to be horizontal in the prior art.

In order to achieve the above object, an embodiment of the present invention provides a method for reminding horizontal adjustment of a washing machine, including the following steps: s200: acquiring actual acceleration parameter information of the washing machine; s300: obtaining the information of the inclination direction of the washing machine according to the actual acceleration parameter information; s400: and obtaining inclination adjustment prompt information according to the washing machine inclination direction information, wherein the inclination adjustment prompt information is used for prompting a user to perform inclination adjustment on the washing machine.

In order to achieve the above object, an embodiment of the present invention further provides a horizontal adjustment reminding device for a washing machine, including: the acquisition module is used for acquiring the actual acceleration parameter information of the washing machine; the inclination information generating module is used for acquiring the inclination direction information of the washing machine according to the actual acceleration parameter information; and the prompt information generating module is used for obtaining inclination adjustment prompt information according to the washing machine inclination direction information, and the inclination adjustment prompt information is used for prompting a user to perform inclination adjustment on the washing machine.

In order to achieve the above object, an embodiment of the present invention further provides a washing machine horizontal adjustment reminding system, where the system includes a detection sensor for a washing machine and a washing machine main board control device, the detection sensor for the washing machine includes a vibration detection circuit, a main control circuit and an interface circuit, which are connected in sequence, and the interface circuit is further connected to the washing machine main board control device; the main control circuit is used for acquiring actual acceleration parameter information of the washing machine through the vibration detection circuit; the main control circuit is used for obtaining the information of the inclination direction of the washing machine according to the actual acceleration parameter information; the main control circuit is used for obtaining inclination adjustment prompt information according to the washing machine inclination direction information, and the inclination adjustment prompt information is sent to the washing machine main board control device through the interface circuit to prompt a user to perform inclination adjustment on the washing machine.

One or more technical schemes in the method, the device and the system for reminding horizontal adjustment of the washing machine provided by the embodiment of the invention at least have one of the following technical effects: the method comprises the steps of firstly obtaining actual acceleration parameter information of the washing machine; then obtaining the information of the inclination direction of the washing machine according to the actual acceleration parameter information; and finally, acquiring inclination adjustment prompt information according to the inclination direction information of the washing machine, wherein the inclination adjustment prompt information is used for prompting a user to perform inclination adjustment on the washing machine, so that an effective method is prompted for the user when the washing machine needs to be adjusted to a horizontal state, and the user can easily know how to adjust the washing machine through the inclination adjustment prompt information, so that the efficiency of adjusting the washing machine to the horizontal state is improved, and efficient and accurate adjustment is realized.

Drawings

The drawings in the following description are only some embodiments of the invention, and other drawings can be derived by those skilled in the art without inventive exercise.

Fig. 1 is a schematic overall structure diagram of a detection sensor for a washing machine according to an embodiment of the present invention;

fig. 2 is an exploded view of a detection sensor for a washing machine according to an embodiment of the present invention;

fig. 3 is a schematic cross-sectional view of a detection sensor for a washing machine according to an embodiment of the present invention;

FIG. 4 is a schematic view of the structure of FIG. 3 from another perspective;

fig. 5 is a schematic cross-sectional view illustrating a casing of a detection sensor for a washing machine according to an embodiment of the present invention;

fig. 6 is a schematic view of an overall structure of a pressure conductive elastic membrane of a detection sensor for a washing machine according to an embodiment of the present invention;

FIG. 7 is a schematic view illustrating another structure of a pressure conductive elastic membrane of the detecting sensor for washing machine of FIG. 6;

fig. 8 is a schematic view illustrating an overall structure of a pressure conductive elastic membrane of a detection sensor for a washing machine according to another embodiment of the present invention;

FIG. 9 is a schematic cross-sectional view of the pressure conductive elastic membrane of the detecting sensor for washing machine of FIG. 8;

fig. 10 is a sectional view of a pressure conductive elastic membrane of a detecting sensor for a washing machine according to another embodiment of the present invention;

fig. 11 is a sectional view of a pressure conductive elastic membrane of a detecting sensor for a washing machine according to another embodiment of the present invention;

fig. 12 is a schematic cross-sectional view illustrating a detecting sensor for a washing machine according to another embodiment of the present invention;

fig. 13 is a schematic cross-sectional view illustrating a casing of a detection sensor for a washing machine according to another embodiment of the present invention;

fig. 14 is a schematic circuit diagram of a detection circuit of a detection sensor for a washing machine according to an embodiment of the present invention;

fig. 15 is a circuit block diagram of a detection circuit of a detection sensor for a washing machine according to an embodiment of the present invention;

FIG. 16 is a schematic circuit diagram of a water pressure and temperature detection circuit of the detection circuit according to another embodiment of the present invention;

fig. 17 is a circuit block diagram of a detection circuit of a detection sensor for a washing machine according to another embodiment of the present invention;

fig. 18 is a flowchart of a method for reminding a horizontal adjustment of a washing machine according to an embodiment of the present invention;

fig. 19 is a flowchart of S110-S130 of a method for reminding a horizontal adjustment of a washing machine according to an embodiment of the present invention;

fig. 20 is a flowchart of S210-S230 of a method for reminding a horizontal adjustment of a washing machine according to an embodiment of the present invention;

fig. 21 is a flowchart of S231-S234 of the flow of the method for reminding the level adjustment of the washing machine according to the embodiment of the present invention;

fig. 22 is a flowchart of S235-S238 of a method for reminding a horizontal adjustment of a washing machine according to an embodiment of the present invention;

fig. 23 is a flowchart of S410-S440 of a method for reminding a horizontal adjustment of a washing machine according to an embodiment of the present invention;

fig. 24 is a flowchart of S450-S480 of a method for reminding a horizontal adjustment of a washing machine according to an embodiment of the present invention;

fig. 25 is a block diagram of a horizontal adjustment reminding device of a washing machine according to an embodiment of the present invention;

fig. 26 is a block diagram of a level adjustment reminding system of a washing machine according to an embodiment of the present invention;

fig. 27 is a schematic diagram after a spatial rectangular coordinate system is established in the horizontal adjustment reminding method for the washing machine according to the embodiment of the invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the specific meanings of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.

In one embodiment of the present invention, as shown in fig. 18, there is provided a level adjustment reminding method of a washing machine, the method including the steps of:

s200: acquiring actual acceleration parameter information of the washing machine;

s300: obtaining the information of the inclination direction of the washing machine according to the actual acceleration parameter information;

s400: and obtaining inclination adjustment prompt information according to the washing machine inclination direction information, wherein the inclination adjustment prompt information is used for prompting a user to perform inclination adjustment on the washing machine.

The method comprises the steps of firstly obtaining actual acceleration parameter information of the washing machine; then obtaining the information of the inclination direction of the washing machine according to the actual acceleration parameter information; and finally, acquiring inclination adjustment prompt information according to the inclination direction information of the washing machine, wherein the inclination adjustment prompt information is used for prompting a user to perform inclination adjustment on the washing machine, so that an effective method is prompted for the user when the washing machine needs to be adjusted to a horizontal state, and the user can easily know how to adjust the washing machine through the inclination adjustment prompt information, so that the efficiency of adjusting the washing machine to the horizontal state is improved, and efficient and accurate adjustment is realized.

In another embodiment of the present invention, as shown in fig. 19, before the obtaining the acceleration parameter information of the washing machine, the method further includes:

s110: establishing a space rectangular coordinate system, wherein a straight line where a central line of the washing machine is located is set as a Z axis, a straight line which faces the side face of the washing machine and is perpendicular to the Z axis is set as an X axis, and a straight line which faces the front face of the washing machine and is perpendicular to the Z axis is set as a Y axis;

specifically, the rectangular spatial coordinate system in this embodiment is shown in fig. 27, and the four bottom corners of the washing machine are labeled as A, B, C and D, respectively.

S120: acquiring a gravity acceleration parameter of the washing machine in a horizontal state;

specifically, when the washing machine is in a horizontal state, a gravitational acceleration parameter is generated due to the action of gravity on the washing machine.

S130: and setting the negative semi-axis of the Z axis in the space rectangular coordinate system to be coincident with the direction of the gravity acceleration parameter.

In this step, after the negative semi-axis of the Z-axis in the rectangular spatial coordinate system is set to coincide with the direction of the gravitational acceleration parameter, the acceleration parameter on the Z-axis is-g, and the acceleration parameters in the x-axis and y-axis directions are both equal to 0. If the washing machine is not in the horizontal state, the acceleration parameters in the x-axis and y-axis directions necessarily have components of the acceleration parameters in the z-axis, so that whether the washing machine is in the horizontal state can be judged only by detecting whether the acceleration parameters in the x-axis and y-axis directions have the components of the acceleration parameters in the z-axis.

In another embodiment of the present invention, as shown in fig. 20, the actual acceleration parameter information includes an X-axis acceleration component parameter, a Y-axis acceleration component parameter and a Z-axis acceleration component parameter decomposed in the spatial rectangular coordinate system, and the obtaining the washing machine inclination direction information according to the actual acceleration parameter information specifically includes:

s210: judging whether the Z-axis acceleration component parameter is the same as the gravity acceleration parameter or not;

s220: if so, generating washing machine non-inclination information, wherein the washing machine non-inclination information is used for prompting a user that the washing machine does not need to be adjusted;

in this step, when the determination result is yes, both the X-axis acceleration component parameter and the Y-axis acceleration component parameter are 0. The washing machine is just in the horizontal state at this time, so the washing machine does not need to be adjusted.

It should be noted that the final result obtained after the determination in step S210 is to distinguish whether the washing machine is in a horizontal state that does not require adjustment. In this embodiment, it is determined that the washing machine is in the horizontal state as an ideal condition by determining that the Z-axis acceleration component parameter is the same as the gravitational acceleration parameter, and the description is only for convenience of understanding.

In reality, it is difficult for the washing machine to have the Z-axis acceleration component parameter identical to the gravitational acceleration parameter, so the step S210 may also be configured as follows: judging whether the Z-axis acceleration component is within a preset inclination threshold range or not; wherein the range of the tilt threshold is calibrated in advance by a person of ordinary skill in the art to indicate the degree of tilt of the washing machine. Specifically, when the Z-axis acceleration component is determined to be within the range of the tilt threshold, it can be understood that an included angle between a center line of the washing machine and a horizontal plane is within a range that does not affect normal operation of the washing machine, so that the washing machine can be determined to be in a horizontal state, and further, the washing machine non-tilt information is generated to prompt a user that the washing machine does not need to be adjusted.

Of course, the step 210 may also adopt other determination methods and steps than those described above, as long as it can determine whether the washing machine is in a horizontal state that does not need to be adjusted, and the present invention is not limited in particular.

S230: and if the judgment result is negative, generating the washing machine inclination direction information according to the X-axis acceleration component parameter, the Y-axis acceleration component parameter and the Z-axis acceleration component parameter.

If the judgment result is negative, the washing machine is in a non-horizontal state at the moment, so that the adjustment is needed.

In another embodiment of the present invention, as shown in fig. 21, the washing machine inclination direction information includes an indication of inclination toward the X-axis negative half axis, an indication of inclination toward the X-axis positive half axis, an indication of inclination toward the Y-axis negative half axis, and an indication of inclination toward the Y-axis positive half axis;

generating the washing machine inclination direction information according to the X-axis acceleration component parameter, the Y-axis acceleration component parameter and the Z-axis acceleration component parameter, specifically comprising:

s231: when the X-axis acceleration component parameter is judged to be a negative number, the Y-axis acceleration component parameter is judged to be zero, and the Z-axis acceleration component parameter is judged to be a negative number, the inclination indication of the negative half shaft facing the X axis is generated;

specifically, the negative semi-axis tilt toward the X-axis indicates a negative semi-axis tilt of the washing machine toward the X-axis.

Referring to fig. 27, in this step, the Z-axis acceleration component parameter is not 0, and the X-axis acceleration component parameter is a negative number, which indicates that the acceleration component on the Z-axis is divided into the negative half axis of the X-axis at this time, so that the washing machine is tilted toward the negative half axis of the X-axis at this time, that is, the AB side in fig. 27 is higher than the CD side.

S232: when the X-axis acceleration component parameter is judged to be a positive number, the Y-axis acceleration component parameter is judged to be zero, and the Z-axis acceleration component parameter is judged to be a negative number, the inclination indication of the positive half shaft facing the X axis is generated;

specifically, the indication of positive semi-axis tilt towards the X-axis indicates that the washing machine is tilted towards the positive semi-axis of the X-axis.

In this step, when the X-axis acceleration component parameter is positive, it means that the acceleration component on the Z-axis is divided into the positive half axis of the X-axis, and therefore the washing machine is tilted toward the positive half axis of the X-axis, that is, the AB side in fig. 27 is lower than the CD side.

S233: when the X-axis acceleration component parameter is judged to be zero, the Y-axis acceleration component parameter is judged to be a negative number, and the Z-axis acceleration component parameter is judged to be a negative number, the inclination indication of the negative half shaft facing the Y axis is generated;

in this step, the Y-axis acceleration component parameter is a negative number, which indicates that the acceleration component on the Z-axis is divided into the negative half axis of the Y-axis at this time, and therefore the washing machine is tilted toward the negative half axis of the Y-axis at this time, that is, the AD side in fig. 27 is higher than the BC side.

S234: and when the X-axis acceleration component parameter is judged to be zero, the Y-axis acceleration component parameter is judged to be a positive number, and the Z-axis acceleration component parameter is judged to be a negative number, generating the inclination indication towards the Y-axis positive half shaft.

In this step, the acceleration component on the Z axis is divided into the positive half axis of the Y axis, and therefore, the washing machine is tilted toward the positive half axis of the Y axis at this time, and the AD side is lower than the BC side.

In this manner, the determination of the inclination of the washing machine toward the positive and negative axes of the X axis and the positive and negative axes of the Y axis is realized through the steps S231 to S234. It can also be understood that detection of the washing machine tilting to the left, right, front and back is achieved.

In another embodiment of the present invention, as shown in fig. 22, the washing machine tilting direction information further includes a tilting toward first quadrant indication, a tilting toward second quadrant indication, a tilting toward third quadrant indication, and a tilting toward fourth quadrant indication;

the generating the washing machine inclination direction information according to the X-axis acceleration component parameter, the Y-axis acceleration component parameter and the Z-axis acceleration component parameter further comprises:

s235: when the X-axis acceleration component parameter is judged to be a positive number, the Y-axis acceleration component parameter is judged to be a positive number, and the Z-axis acceleration component parameter is judged to be a negative number, generating the inclination indication towards the first quadrant;

specifically, a positive half shaft of the X axis, a positive half shaft of the Y axis, and a positive half shaft of the Z axis are first quadrants, and counterclockwise rotation with the Z axis as a rotation axis is second, third, and fourth quadrants, respectively.

In this step, the acceleration component on the Z axis is divided into the positive half axis of the X axis and the positive half axis of the Y axis, so that the washing machine is inclined toward the first quadrant, the point a is the lowest, and the point C is the highest.

S236: when the X-axis acceleration component parameter is judged to be a negative number, the Y-axis acceleration component parameter is judged to be a positive number, and the Z-axis acceleration component parameter is judged to be a negative number, the inclination indication of the direction to the second quadrant is generated;

in this step, the acceleration component on the Z axis is divided into the positive half axis of the X axis and the negative half axis of the Y axis, so that the washing machine is inclined toward the second quadrant, the point D is the lowest, and the point B is the highest.

S237: when the X-axis acceleration component parameter, the Y-axis acceleration component parameter and the Z-axis acceleration component parameter are judged to be negative numbers, generating the inclination indication of the direction to the third quadrant;

in this step, the acceleration component on the Z axis is divided into the negative half axis of the X axis and the negative half axis of the Y axis, i.e. the washing machine is tilted toward the third quadrant, where point C is the highest and point a is the lowest.

S238: and when the X-axis acceleration component parameter is judged to be a positive number, the Y-axis acceleration component parameter is judged to be a negative number, and the Z-axis acceleration component parameter is judged to be a negative number, generating the inclination indication of the direction to the fourth quadrant.

In this step, the acceleration component on the Z axis is divided into the positive half axis of the X axis and the negative half axis of the Y axis, and the washing machine is tilted to the fourth quadrant, at which point B is the lowest and point D is the highest.

In another embodiment of the present invention, as shown in fig. 23, the inclination adjustment prompt message includes an X-axis negative half-axis reverse adjustment instruction, an X-axis positive half-axis reverse adjustment instruction, a Y-axis negative half-axis reverse adjustment instruction, and a Y-axis positive half-axis reverse adjustment instruction;

the obtaining of the inclination adjustment prompt information according to the washing machine inclination direction information specifically includes:

s410: generating an X-axis negative half shaft reverse adjustment indication according to the X-axis negative half shaft inclination indication;

specifically, after the instruction of tilting toward the negative half axis of the X axis is generated, it is stated that the washing machine tilts toward the negative half axis of the X axis, and therefore, during adjustment, adjustment should be performed in the reverse direction of the negative half axis of the X axis, and therefore, the instruction of adjusting in the reverse direction of the negative half axis of the X axis is generated for reminding a user of targeted adjustment.

Furthermore, the reverse adjustment indication of the negative half shaft of the X shaft can be set to be displayed on a human-computer interaction interface of the washing machine, so that a user can be more intuitively reminded of adjustment.

S420: generating an X-axis positive half shaft reverse adjustment instruction according to the inclination instruction of the X-axis positive half shaft;

the X-axis positive half shaft reverse adjustment indication is used for reminding a user of reversely adjusting the washing machine towards the X-axis positive half shaft.

S430: generating a reverse adjustment indication of the negative Y-axis half shaft according to the inclination indication of the negative Y-axis half shaft;

the Y-axis negative half shaft reverse adjustment indication is used for reminding a user of the reverse adjustment washing machine towards the Y-axis negative half shaft.

S440: and generating the Y-axis positive half shaft reverse adjustment indication according to the inclination indication towards the Y-axis positive half shaft.

The Y-axis positive half shaft reverse adjustment indication is used for reminding a user of reversely adjusting the washing machine towards the Y-axis positive half shaft.

In another embodiment of the present invention, as shown in fig. 24, the tilt adjustment prompting message includes a first quadrant reverse adjustment indication, a second quadrant reverse adjustment indication, a third quadrant reverse adjustment indication, and a fourth quadrant reverse adjustment indication;

s450: generating a first quadrant reversal adjustment indication according to the first quadrant facing inclination indication;

specifically, after the indication of the inclination toward the first quadrant is obtained, it is indicated that the washing machine is inclined toward the first quadrant at this time, so that the washing machine should be adjusted in a direction opposite to the first quadrant during adjustment at this time, and then the indication of the reverse adjustment of the first quadrant is generated to remind a user of adjusting in a direction opposite to the inclination direction, thereby providing adjustment efficiency.

S460: generating a second quadrant reversal adjustment indication according to the second quadrant facing inclination indication;

the second quadrant back adjustment indication is used to prompt a user to adjust the washing machine to the second quadrant back.

S470: generating a third quadrant reversal adjustment indication according to the third quadrant facing tilt indication;

the third quadrant back adjustment indication is used for prompting a user to adjust the washing machine to the third quadrant back.

S480: generating the fourth quadrant inversion adjustment indication based on the indication of tilt toward the fourth quadrant.

The fourth quadrant counter adjustment indication is used for prompting a user to adjust the washing machine to the fourth quadrant counter.

In another embodiment of the present invention, the method further comprises: and calculating an inclination angle according to the X-axis acceleration component parameter, the Y-axis acceleration component parameter and the Z-axis acceleration component parameter to obtain an inclination angle value between the central line of the washing machine and the horizontal plane.

Specifically, the inclination angle value is obtained to inform a user of the inclination angle of the washing machine in a non-horizontal state, so that the user can correspondingly adjust according to the inclination angle value. Therefore, the user can adjust the display device in a targeted manner, and the adjustment efficiency is further ensured.

In this way, the user is prompted to adjust the direction of the washing machine through the steps S231 to 234 and the steps S235 to 238, and the user is prompted to specifically adjust the degree through the inclination angle value, so that the accuracy of the prompting is realized through double adjustment prompting, and the adjustment efficiency is further improved.

In another embodiment of the present invention, the tilt angle calculation is based on the following formula:

wherein ,a_xIs a parameter of the acceleration component of the X axis, a_yIs a parameter of the acceleration component of the Y axis, a_zAnd α is the tilt angle value for the Z-axis acceleration component parameter.

In another embodiment of the present invention, as shown in fig. 25, there is also provided a level adjustment reminding apparatus for a washing machine, the apparatus including:

the acquisition module is used for acquiring the actual acceleration parameter information of the washing machine;

the inclination information generating module is used for acquiring the inclination direction information of the washing machine according to the actual acceleration parameter information;

and the prompt information generating module is used for obtaining inclination adjustment prompt information according to the washing machine inclination direction information, and the inclination adjustment prompt information is used for prompting a user to perform inclination adjustment on the washing machine.

In another embodiment of the present invention, as shown in fig. 1 to 17 and 26, a horizontal adjustment reminding system for a washing machine is further provided, the system includes a detection sensor for the washing machine and a washing machine main board control device, which are sequentially connected, the detection sensor for the washing machine includes a vibration detection circuit 150, a main control circuit 130 and an interface circuit 110, which are sequentially connected, and the interface circuit 110 is further connected to the washing machine main board control device; wherein,

the main control circuit 130 is configured to obtain actual acceleration parameter information of the washing machine through the vibration detection circuit 150;

the main control circuit 130 is configured to obtain information of an inclination direction of the washing machine according to the actual acceleration parameter information;

the main control circuit 130 is configured to obtain a tilt adjustment prompt message according to the washing machine tilt direction information, where the tilt adjustment prompt message is sent to the washing machine main board control device through the interface circuit 110 to prompt a user to perform tilt adjustment on the washing machine.

In another embodiment of the present invention, as shown in fig. 26, the washing machine main board control device includes a washing machine main control board 180 and a human-computer interaction interface 190, the washing machine main control board 180 is connected to the interface circuit, the human-computer interaction interface 190 is connected to the washing machine main control board 180, and the inclination adjustment prompt message is sent through the washing machine main control board 180 and displayed by the human-computer interaction interface 190.

Specifically, in this embodiment, the human-machine interface 190 may adopt a touch screen of the washing machine itself, or may be operated by separately setting an operation screen.

In another embodiment of the present invention, as shown in fig. 1 to 17, the detection sensor for a washing machine includes a detection circuit 100, and the detection circuit 100 includes the vibration detection circuit 150, the main control circuit 130, the interface circuit 110, and the voltage conversion circuit 120. The voltage conversion circuit 120 is connected to the vibration detection circuit 150, the main control circuit 130 and the interface circuit 110.

In another embodiment of the present invention, as shown in fig. 14, the main control circuit 130 includes a main control chip U2, and the main control chip U2 is connected to the voltage conversion circuit 120 and the interface circuit 110. Specifically, the model of the main control chip U2 in this embodiment is preferably STM8S003 or the same type of chip is selected by a person skilled in the art according to actual needs.

As shown in fig. 14-15, the vibration detection circuit 150 includes a vibration detection chip U4, the first pin of the vibration detection chip U4 is connected to the third pin of the voltage stabilization chip U1, the fourteenth pin of the vibration detection chip U4 is connected to the twelfth pin of the main control chip U2, and the thirteenth pin of the vibration detection chip U4 is connected to the eleventh pin of the main control chip U2. In this embodiment, the model of the vibration detection chip U4 is preferably ADXL345 or the same model thereof.

In another embodiment of the present invention, as shown in fig. 14, the interface circuit 110 includes a connection port J4, a first pin of the connection port J4 is connected to a serial input pin of the main control chip U2, a third pin of the connection port J4 is connected to a serial output pin of the main control chip U2, a second pin of the connection port J4 is grounded, and a fourth pin of the connection port J4 is connected to a power supply output terminal of the main control board 180 of the washing machine.

In another embodiment of the present invention, as shown in fig. 14, the detection circuit 100 further includes a water pressure and temperature detection circuit 140.

The water pressure and temperature detection circuit 140 includes a water pressure and temperature detection chip U3, the water pressure and temperature detection chip U3 with the voltage conversion circuit 120 is connected, the data transmission pin of the temperature detection chip U3 with the data transmission pin of the main control chip U2 with be connected, the clock control pin of the temperature detection chip U3 with the clock control pin of the main control chip U2 is connected. Specifically, the data transmission pin of the temperature detection chip U3 is an SDA pin, and the clock control pin of the temperature detection chip U3 is an SCL pin. In this embodiment, the third pin of the temperature detecting chip U3 is connected to the eleventh pin of the main control chip U2, and the fourth pin of the temperature detecting chip U3 is connected to the twelfth pin of the main control chip U2. The model of the water pressure and temperature detection chip U3 is preferably DPS 310.

The DPS310 digital pressure sensor is a miniature atmospheric pressure sensor with high accuracy and low current consumption. The sensor is based on the principle of capacitive sensing, and is capable of measuring pressure and temperature. This guarantees to have high accuracy in the temperature variation process, through adopting this sensor, has greatly improved the precision and the accuracy of data measurement.

The internal signal processor of the DPS310 converts the output of the pressure and temperature sensor elements into a 24-bit result, each cell is individually calibrated, and calibration coefficients calculated in this process are stored in a calibration register, and these coefficients are used for applications of converting the measurement results into high-precision pressure and temperature values, so that temperature and water pressure can be measured at a time by one of the temperature sensing chips U3, which is efficient and convenient.

In another embodiment of the present invention, as shown in fig. 14, the voltage converting circuit 120 includes a voltage stabilizing chip U1, an input pin of the voltage stabilizing chip U1 is connected to a power supply output terminal of the main control board 180 of the washing machine, and an output pin of the voltage stabilizing chip U1 is connected to a power supply pin of the main control chip U2 and a power supply pin of the water pressure and temperature detecting chip U3, respectively, and supplies power to the main control chip U2 and the water pressure and temperature detecting chip U3. In this embodiment, the reference numeral of the power supply output terminal of the main control board 180 of the washing machine is VIN. An input pin of the voltage regulation chip U1 is a second pin of the voltage regulation chip U1, an output pin of the voltage regulation chip U1 is a third pin of the voltage regulation chip U1, and voltage output by a power supply output end of the washing machine main control board 180 is converted by the voltage regulation chip U1 and then is output by 3.3V from the third pin. The power supply pin of the main control chip U2 is a ninth pin, and the power supply pin of the water pressure and temperature detection chip U3 is an eighth pin. The model of the voltage stabilizing chip U1 is preferably TLV 70433.

According to the invention, by arranging the interface circuit 110, the voltage conversion circuit 120, the main control circuit 130 and the water pressure and temperature detection circuit 140, and connecting the water pressure and temperature detection circuit 140 with the voltage conversion circuit 120 and the main control circuit 130, the water pressure and temperature detection circuit 140 detects the water pressure and temperature reaching the water pressure and temperature detection circuit 140 after being sequentially transmitted to the pressure transmission medium 400 through the pressure transmission elastic membrane 200, and transmits the detected water pressure and temperature information to the main control circuit 130, so that the main control circuit 130 transmits the water pressure and temperature information to the main control board 180 of the washing machine through the interface circuit 110, therefore, the water temperature and water pressure can be detected by the water pressure and temperature detection circuit 140, a plurality of branch sensors are not needed, the production cost is reduced, and simultaneously, compared with a mechanical structure, the water temperature and the water pressure are measured, the accuracy rate of the measured water pressure and temperature information is higher, and the practicability is high.

In another embodiment of the present invention, as shown in fig. 14 to 15, the voltage converting circuit 120 further includes an input protection circuit 121, and the input protection circuit 121 is disposed between the power supply output terminal of the main control board 180 of the washing machine and the input pin of the regulator chip U1.

In another embodiment of the present invention, as shown in fig. 14, the input protection circuit 121 includes a self-healing fuse JZ1, and two ends of the self-healing fuse JZ1 are respectively connected to the power supply output terminal of the main control board 180 of the washing machine and the input pin of the voltage regulation chip U1. When the current passing through the self-recovery fuse JZ1 is too large, the resistance of the self-recovery fuse JZ1 becomes large, thereby functioning as a protection circuit.

In another embodiment of the present invention, as shown in fig. 14, the input protection circuit 121 further includes a protection diode D1, a cathode of the protection diode D1 is connected to the input pin of the zener chip U1, and an anode of the protection diode D1 is grounded. The protection diode D1 is used to prevent the subsequent circuit from being damaged by the surge or spike of the voltage output from the power supply output terminal of the main control board 180 of the washing machine.

Specifically, a serial port input pin of the main control chip U2 is an RX pin, and a serial port output pin of the main control chip U2 is a TX pin, in this embodiment, the first pin of the connection port J4 is connected to the third pin of the main control chip U2, and the third pin of the connection port J4 is connected to the second pin of the main control chip U2. Thus, parameters of the water pressure and temperature detection chip U3 are configured through the communication mode of I2C, the main control chip U2 obtains water pressure and temperature information detected by the water pressure and temperature detection chip U3 through the communication mode of I2C, and the main control chip U2 analyzes the water pressure information to obtain water level height information in a water tub of the washing machine through the received water pressure and temperature information and obtains water temperature information through analyzing the temperature information. Then, the main control chip U2 sends the water level height information and the water temperature information to the washing machine main control board 180 through the connection port J4, so that the washing machine main control board 180 controls the washing machine to work according to the water level height information and the water temperature information.

In another embodiment of the present invention, as shown in fig. 16 to 17, the water pressure and temperature detecting circuit 140 includes an internal detecting circuit 141 and an external detecting circuit 142, and both the internal detecting circuit 141 and the external detecting circuit 142 are connected to the main control circuit 130; the built-in detection circuit 141 is used for detecting the water pressure in the water tub of the washing machine, and the external detection circuit 142 is used for detecting the atmospheric pressure outside the water tub of the washing machine.

Specifically, the internal detection circuit 141 and the external detection circuit 142 respectively include a water pressure and temperature detection chip. In this embodiment, the reference number of the water pressure and temperature detecting chip of the built-in detecting circuit 141 is U3, that is, the built-in detecting circuit 141 includes a water pressure and temperature detecting chip U3. The external detection circuit has a water pressure and temperature detection chip labeled as U5, i.e., the external detection circuit 142 includes a water pressure and temperature detection chip U5.

The water pressure and temperature detection chip U3 and the third pin and the fourth pin of the water pressure and temperature detection chip U5 are respectively connected with the eleventh pin and the twelfth pin of the main control chip U2.

Wherein, the fifth pin of water pressure and temperature detection chip U3 is unsettled, makes I2C of water pressure and temperature detection chip U3 is 1 from the most significant bit of address, the fifth pin ground connection of water pressure and temperature detection chip U5 makes I2C of water pressure and temperature detection chip U5 is 0 from the least significant bit of address, thereby makes main control chip U2 can distinguish according to following the address water pressure and temperature detection chip U3 with water pressure and temperature detection chip U5, and can realize alone main control chip U2 with water pressure and temperature detection chip U3 with water pressure and temperature detection chip U5 communication.

Further, in practical applications, the detection end of the water pressure and temperature detecting chip U3 of the built-in detection circuit 141 is located at the bottom of the water tub of the washing machine, that is, the pressure of the water in the water tub is opposite to the detection end of the water pressure and temperature detecting chip U3 of the built-in detection circuit 141, the pressure is actually the pressure of the water plus the pressure of the atmospheric pressure, and the main control chip U2 converts the sum of the pressure of the water and the atmospheric pressure into water level height information in the water tub and sends the information to the main control board of the washing machine.

If the washing machine is located on a higher floor, such as twenty-first floor, the difference between the atmospheric pressure of twenty-first floor and the atmospheric pressure of twenty-second floor is too large, and if the sum of the water pressure and the atmospheric pressure is directly converted into the height information of the water level in the water bucket in the twenty-first floor, a large error is generated, so that the detection of the water level in the washing machine is inaccurate, and the work of the washing machine is influenced. Therefore, in the present application, by providing the external detection circuit 142 and making the water pressure and temperature detection chip U5 of the external detection circuit 142 be outside the region covered by the water level of the water tub, so that the external detection circuit 142 detects the atmospheric pressure outside the water tub of the washing machine, the main control chip U2 subtracts the pressure value detected by the water pressure and temperature detection chip U3 of the internal detection circuit 141 from the pressure value detected by the water pressure and temperature detection chip U5 of the external detection circuit 142, so as to obtain the pressure value of the actual water level, and then converts the pressure value of the actual water level to obtain the height information of the actual water level inside the water tub, so that the internal detection circuit 141 and the external detection circuit 142 are provided to eliminate the influence of the external atmospheric pressure change on the water level detection inside the water tub in the washing machine, thereby realizing accurate measurement, the practicability is extremely high.

In one embodiment of the present invention, as shown in fig. 1 to 5, there is provided a sensing sensor for a washing machine, including a housing 300, a pressure conductive elastic membrane 200, a pressure conductive medium 400, and a pressure sensing PCB board 500.

The bottom of the housing 300 is provided with a bottom opening 310, the top of the housing 300 is provided with an upper opening 320, and the pressure conducting elastic membrane 200, the pressure conducting medium 400 and the pressure detection PCB 500 are sequentially installed in the housing 300 from the upper opening 320. The pressure conducting elastic membrane 200 is installed in the housing 300 and then seals the bottom opening 310, the pressure conducting medium 400 is accommodated in the housing 300 and is arranged to press the pressure conducting elastic membrane 200, the pressure detecting PCB 500 is installed in the housing 300 and is arranged to press the pressure conducting medium 400, and the detecting end of the pressure detecting PCB 500 extends into the pressure conducting medium 400, so that external pressure is conducted to the detecting end of the pressure detecting PCB 500 after sequentially passing through the pressure conducting elastic membrane 200 and the pressure conducting medium 400, and then the pressure detecting PCB 500 detects the external pressure.

In the invention, by arranging the housing 300, the pressure conducting elastic membrane 200, the pressure conducting medium 400 and the pressure detecting PCB 500, accommodating the pressure conducting medium 400 in the housing, installing the pressure detecting PCB 500 in the housing 300 and pressing the pressure conducting medium 400, and arranging the detecting end of the pressure detecting PCB 500 to extend into the pressure conducting medium 400, when detecting external pressure, the external pressure can sequentially pass through the pressure conducting elastic membrane 200 and the pressure conducting medium 400 and then be conducted to the detecting end of the pressure detecting PCB 500, so that the pressure detecting PCB 500 detects the external pressure, compared with the prior art, the present application arranges the pressure conducting medium 400 between the pressure conducting elastic membrane 200 and the pressure detecting PCB 500, the external pressure is conducted to the pressure detection PCB board 500 through the pressure conduction elastic membrane 200 and the pressure conduction medium 400, so that the high-efficiency, fast and low-loss conduction of the pressure can be realized due to the elasticity of the pressure conduction elastic membrane 200 and the fluidity of the pressure conduction medium 400, the pressure detection precision is improved, the subsequent accurate control of the washing machine according to the pressure detection is realized, and the user experience is improved.

In another embodiment of the present invention, as shown in fig. 2 to 5, the periphery of the bottom of the housing 300 extends toward the center of the bottom opening 310 to form an elastic membrane mounting part 330, and the periphery of the pressure conductive elastic membrane 200 is connected to the elastic membrane mounting part 330. The elastic membrane mounting part 330 is used to conveniently mount the pressure conductive elastic membrane 200. After the installation, the bottom surface of the periphery of the pressure conducting elastic membrane 200 contacts the top surface of the elastic membrane installation part 330 and is tightly connected with the elastic membrane installation part through an external force, so that the pressure conducting elastic membrane 200 seals the bottom opening 310. Meanwhile, due to the elastic arrangement of the pressure conduction elastic membrane 200, when the pressure conduction elastic membrane 200 is tightly connected with the elastic membrane mounting part 330 by an external force, the periphery of the pressure conduction elastic membrane 200 is elastically deformed, so that under the action of the external force, on one hand, the tight connection between the pressure conduction elastic membrane 200 and the elastic membrane mounting part is realized, on the other hand, the sealing performance of the pressure conduction elastic membrane 200 after being sealed with the bottom opening is ensured, and the dual effects of connection and sealing are realized. Specifically, in the present embodiment, an ordinary person skilled in the art may select an adhesive or a pressing member such as glue to press the pressure-conducting elastic membrane 200 onto the elastic membrane mounting portion 330 according to actual requirements, so as to connect the periphery of the pressure-conducting elastic membrane 200 with the elastic membrane mounting portion 330 by using the adhesive or pressing force of the glue.

In another embodiment of the present invention, as shown in fig. 5, the elastic membrane mounting portion 330 includes a receiving platform 331, a periphery of the receiving platform 331 is curled toward the inside of the housing 300 to form a fixing rib 332, and an inner surface of the fixing rib 332 is abutted against a periphery of the pressure conductive elastic membrane 200. The upper surface of the receiving platform 331 is disposed in a plane, and when the pressure conducting elastic membrane 200 is mounted, the pressure conducting elastic membrane 200 is directly disposed on the receiving platform 331, so that the bottom surface of the periphery of the pressure conducting elastic membrane 200 is attached to the upper end surface of the receiving platform 331, and then the two are pressed together by using an external force. After the press-fitting, the inner surface of the fixing rib 332 is attached to the periphery of the pressure-conducting elastic membrane 200, so that not only the upper end surface of the receiving platform 331 is in contact with the elastically deformed portion of the pressure-conducting elastic membrane 200, but also the inner surface of the fixing rib of the pressure-conducting elastic membrane 200 is in contact, thereby increasing the contact area between the pressure-conducting elastic membrane 200 and the elastic membrane mounting portion 330, and improving the sealing performance in a manner of simultaneous close contact of two portions.

In another embodiment of the present invention, as shown in fig. 2 to 4, the detection sensor for a washing machine further includes an elastic film pressing member 600, the elastic film pressing member 600 being installed in the housing 300; the middle of the elastic membrane pressing piece 600 is provided with a clearance hole 610 for avoiding the pressure conduction elastic membrane 200, and the bottom surface of the periphery of the elastic membrane pressing piece 600 is pressed on the top surface of the periphery of the pressure conduction elastic membrane 200, so that the bottom surface of the periphery of the pressure conduction elastic membrane 200 is attached to the bearing platform 331 and the fixing rib 332. The clearance hole 610 is used for not influencing the conduction of the pressure from the outside to the inside of the housing 300 along the pressure conduction elastic membrane 200. The periphery of the elastic membrane pressing piece 600 is pressed on the top surface of the periphery of the pressure conduction elastic membrane 200, so that the pressure conduction elastic membrane 200 is only in peripheral contact with the elastic membrane pressing piece 600, the pressure conduction elastic membrane 200 is guaranteed to be fixed on the premise that the function of pressure conduction of the pressure conduction elastic membrane 200 is not affected, the structural design is ingenious, the bottom surface of the periphery of the pressure conduction elastic membrane 200 is attached to the bearing platform 331 and the fixing protruding edge 332 after pressing, and the sealing performance is guaranteed.

In another embodiment of the present invention, as shown in fig. 2 and 4, the bottom of the housing 300 is provided with a pressing member mounting part 340 matched with the elastic film pressing member 600, so that the elastic film pressing member 600 is engaged in the pressing member mounting part 340. In this embodiment, the lateral wall of casing 300 bottom to inwards concave formation in the casing 300 compress tightly an installation department 340, compress tightly an installation department 340 with elasticity membrane pressure piece 600 phase-match sets up, so that external force will elasticity membrane pressure piece 600 install in when compressing tightly an installation department 340, elasticity membrane pressure piece 600 just block in the casing 300 and fixed pressure conduction elastic membrane 200 makes pressure conduction elastic membrane 200 take place elastic deformation and make its peripheral bottom surface and side respectively with accept platform 331 with fixed bead 332 laminates.

In another embodiment of the present invention, the elastic film pressing member 600 includes an annular pressing plate 620, a peripheral edge of the annular pressing plate 620 extends in a direction perpendicular to the annular pressing plate 620 to form a close-fitting column 630, a bottom surface of the close-fitting column 630 abuts against the receiving platform 331, and an outer side of the close-fitting column 630 is in close-fitting connection with an inner surface of the pressing member mounting portion 340. In this embodiment, the area and the shape of the annular pressing plate 620 are both matched with the area and the shape of the periphery of the pressure conducting elastic membrane 200, so that the annular pressing plate 620 is exactly pressed on the periphery of the pressure conducting elastic membrane 200, and the pressure conducting effect of the pressure conducting elastic membrane 200 is not affected when the pressure conducting elastic membrane 200 is fixed. In addition, the bottom surface of the tight fitting column 630 is abutted to the bearing platform 331, and the outer side of the tight fitting column 630 is tightly connected with the inner surface of the pressing part mounting part 340 in a tight fit manner, so that the elastic film pressing part 600 can be mounted, and meanwhile, the possibility that other outside or liquid permeates into the shell can be sealed, and the sealing performance is further improved.

In another embodiment of the present invention, as shown in fig. 6-7, a side of the pressure conducting elastic membrane 210 facing away from the pressure conducting medium 400 is expanded in a direction facing the pressure conducting medium 400 and extended to form a plurality of pressure conducting concave parts 210.

According to the invention, the pressure conducting elastic membrane 200 is arranged, and one side of the pressure conducting elastic membrane 200, which is far away from the pressure conducting medium, is extended towards the direction of the pressure conducting medium 400 and extends to form the plurality of pressure conducting inner concave parts 210, so that when the detection sensor for the washing machine is used, the pressure of water can be transmitted to the other side of the pressure conducting elastic membrane 200 along the plurality of pressure conducting inner concave parts 210 which are concave inwards, namely transmitted into the shell 300 from the outside of the shell, compared with a plane type membrane structure in the prior art, the pressure conducting inner concave parts 210 in the application have a better guiding effect on the pressure conduction on one hand and have a high-efficiency pressure conducting effect on the other hand, thereby improving the detection efficiency and accuracy and having extremely high practicability.

In another embodiment of the present invention, as shown in FIG. 8, each of the pressure conducting inner recesses 210 is disposed in a ring shape. When the detection sensor for the washing machine is used, one side surface of the pressure conduction elastic membrane 200 bears the pressure of water in a washing tub of the washing machine, and the pressure is conducted to the inside of the shell 300 through the pressure conduction elastic membrane 200 after being conducted to the other side surface of the pressure conduction elastic membrane 200. That is, when water is present in the water tub of the washing machine, the pressure of the water acts on each of the pressure conduction concave parts 210, and the pressure conduction concave parts 210 are set to have a ring shape, so that the water is conducted to the other side surface of the pressure conduction elastic membrane 200 along the ring shape of the pressure conduction concave parts 210 during pressure conduction, thereby better conducting the pressure caused by the water, and further ensuring the accuracy of subsequent pressure measurement. In this embodiment, each of the pressure conducting inner concave portions 210 is disposed in a circular ring shape. In this embodiment, the number of the pressure conducting inner recesses 210 is one.

In another embodiment of the present invention, as shown in fig. 6-7, the pressure conducting inner recesses 210 in the shape of a ring are equally spaced. Therefore, when the pressure of water acts on the pressure conduction concave part 210, the water can be uniformly conducted into the shell along the pressure conduction concave part 210, so that a high pressure conduction effect is ensured. In this embodiment, the number of the pressure conducting inner recesses 210 is two.

In another embodiment of the present invention, the center of each of the pressure conducting inner recesses 210 having a ring shape is the same as the center of the pressure conducting elastic membrane 200. That is, the center of each of the annular pressure conduction inner recesses 210 is the center of the pressure conduction elastic membrane 200, so that the stability of the overall structure of the pressure conduction elastic membrane 200 is ensured, the pressure of water is better supported, and the service life is prolonged.

In another embodiment of the present invention, as shown in fig. 6 to 9, each of the pressure conduction inner concave portions 210 is arranged in a stepped-down manner from the outer edge of the pressure conduction elastic membrane 200 toward the center of the pressure conduction elastic membrane 200. That is, the inward concave degree of each of the pressure conduction inner concave portions 210 decreases in sequence from the outer edge of the pressure conduction elastic film 200 to the center direction of the pressure conduction elastic film, and it can be understood that the inward concave surface of the pressure conduction inner concave portion 210 beside the center of the pressure conduction elastic film 200 is the lowest surface of the inward concave surface of each of the pressure conduction inner concave portions 210. Compared with the prior art, the planar structure has the advantages that the pressure conducting concave parts 210 are arranged in a step-down mode, so that the pressure can be transferred step by step along the pressure conducting concave parts 210 during pressure conduction, and the pressure conducting efficiency is improved. On the other hand, the pressure conducting elastic membrane 200 is integrally in a shape that one surface is recessed towards the other surface, when the pressure conducting elastic membrane 200 contacts water, each pressure conducting concave portion 210 has a flow guiding function, and in the flow guiding process, the pressure of the water also acts on each pressure conducting concave portion 210 along with the flow guiding function, and then is conducted to the other side surface of the pressure conducting elastic membrane 200, so that the pressure conduction is realized.

In another embodiment of the present invention, as shown in fig. 8, the middle portion of the pressure conductive elastic membrane 200 extends toward the opposite direction of the concavity of the pressure conductive inner concave portion 210 and forms a middle convex portion 220. That is, the whole structure of the pressure conducting elastic membrane 200 is not arranged with one side inclined to the other side, but the middle convex part 220 opposite to the concave direction of each pressure conducting concave part 210 is convexly arranged in the middle, so that when water pressure acts on each pressure conducting concave part 210, the middle convex part 220 provides an elastic force, thereby ensuring the stability of the pressure conducting elastic membrane 200 when two sides of the structure are stressed, further ensuring that the pressure conducting elastic membrane 200 is not deformed due to continuous stress, and improving the stability of the whole structure of the elastic membrane. Specifically, the elastic force provided by the middle protruding portion 220 is a force that is diffused in the direction of the circumference of the pressure conductive elastic membrane 200 toward each of the pressure conductive inner concave portions 210 with the middle protruding portion 220 as the center.

In another embodiment of the present invention, as shown in fig. 6 to 7, the peripheral ring of the pressure-conducting elastic membrane 200 is provided with a first convex fitting part 230. In this embodiment, the first protruding close-fitting portion 230 is disposed in a circular ring shape, and when the first protruding close-fitting portion 230 is used for fixing the pressure conducting elastic membrane 200, the elastic membrane pressing member presses the first protruding close-fitting portion 230, so as to seal the bottom opening 310.

In another embodiment of the present invention, as shown in fig. 10, the peripheral edges of the two side surfaces of the pressure conducting elastic membrane 200 extend in the direction away from the pressure conducting elastic membrane 200 and form a front convex close-fitting portion 241 and a back convex close-fitting portion 242, respectively; the front protrusion close-fitting portion 241 and the back protrusion close-fitting portion 242 are symmetrically arranged. In this embodiment, protruding tight-fitting portion 241 of front with protruding tight-fitting portion 242 of reverse side is the setting of protruding form, just protruding tight-fitting portion 241 of front with protruding tight-fitting portion 242 of reverse side all is the elasticity setting, so, through protruding form protruding tight-fitting portion 241 of front with protruding tight-fitting portion 242 of reverse side makes fixedly during pressure conduction elastic membrane 200, compress tightly protruding tight-fitting portion 241 of front with protruding tight-fitting portion 242 of reverse side makes protruding tight-fitting portion 241 of front with the bellying of protruding tight-fitting portion 242 of reverse side takes place elastic deformation to guarantee the leakproofness.

In another embodiment of the present invention, as shown in fig. 11, a peripheral edge of one side surface of the pressure conducting elastic membrane 200 extends in a direction away from the pressure conducting elastic membrane 200 and forms a single-sided convex fitting portion 250, and the other side surface of the pressure conducting elastic membrane 200 is arranged in a planar manner. Specifically, a side is planar pressure conduction elastic membrane 200 be convenient for with accept platform 331 and closely laminate, another side sets up protruding tight fitting portion 250 of unilateral is so that elastic membrane pressure spare 600 is pressed and is located make it take place elastic deformation on the protruding tight fitting portion 250 of unilateral to leakproofness when keeping the installation, so, the facility and the sealing of installation are realized to the difference through two-sided setting, and is high-efficient swift.

In another embodiment of the present invention, the pressure conducting elastic membrane 200 is made of silica gel, that is, the pressure conducting elastic membrane 200 is made of elastic silica gel, and the silica gel material is adopted, so that the pressure conducting elastic membrane 200 has excellent elasticity, and when the pressure conducting elastic membrane 200 bears pressure, elastic deformation occurs rapidly, which greatly alleviates the obstruction of the hard structure of the detection material to the pressure conducting process, thereby ensuring a high-efficiency pressure conducting effect, and thus realizing accurate measurement of the pressure. Of course, the material of the pressure conducting elastic membrane 200 may also be selected from other materials as long as the requirement for conducting the pressure of the pressure conducting elastic membrane 200 can be met, and the application is not limited specifically.

In addition, this application pressure conduction elastic membrane 200 sets up for integrated into one piece, so, guarantees the high efficiency in the production process, and integrated into one piece sets up and makes pressure conduction elastic membrane 200 keeps as a whole, and the structure is more stable, improves indirectly the life of pressure conduction elastic membrane 200 to provide higher user experience for the user.

In another embodiment of the present invention, the pressure conducting medium 400 is made of silicone oil. The silicone oil has heat resistance, electrical insulation, weather resistance, hydrophobicity, physiological inertia and smaller surface tension, and also has low viscosity-temperature coefficient and higher compression resistance. On one hand, since the silicone oil has compression resistance, it can efficiently conduct the pressure conducted through the pressure conducting elastic membrane 200, and further conducted to the pressure detecting PCB 500, so as to improve the pressure conducting efficiency. On the other hand, silicone oil is also an excellent heat transfer oil, so that it can efficiently transfer water temperature by providing the silicone oil as the pressure conducting medium 400, thereby enabling the pressure detecting PCB 500 to detect the temperature of water in the tub within the washing machine. In addition, the electrical insulation of the silicone oil enables the detection end of the pressure detection PCB 500 to be soaked in the silicone oil for a long time without damaging the circuit structure on the pressure detection PCB 500, thereby ensuring that the service time and the service life of the pressure detection PCB 500 are not influenced.

In another embodiment of the present invention, the housing 300 is made of stainless steel. In production, the housing 300 is made of stainless steel by drawing. Since the stainless steel treatment process in the prior art is becoming mature, the mature process on the market can be utilized to reduce the research and development cost when manufacturing the housing 300. The case 300 made of stainless steel has a certain strength, so that the stability of the overall structure of the detection sensor for the washing machine can be ensured. In addition, the housing 300 made of stainless steel has extremely strong thermal conductivity, and thus high-efficiency heat conduction when detecting water temperature is ensured.

In another embodiment of the present invention, as shown in fig. 1-4, the pressure detection PCB 500 includes a PCB holder 510 and a detection PCB 520, the detection PCB is partially clamped on the PCB holder 510, and a part of the detection PCB 520 is immersed in the pressure conductive medium 400; the PCB fixing member 510 is installed in the housing 300, and the bottom of the PCB fixing member 510 is attached to the upper end surface of the pressure conducting medium 400. In this embodiment, the PCB fixing member 510 is made of rubber, and the PCB fixing member 510 and the detection PCB 520 are connected by low-temperature injection molding. After the bottom of the PCB fixing member 510 is attached to the upper end surface of the pressure conducting medium 400, the pressure conducting medium 400 is filled in the cavity between the PCB fixing member 510 and the pressure conducting elastic membrane 200 without any excess liquid or gas, so that the external pressure is completely conducted to the detection PCB 520 after passing through the pressure conducting elastic membrane 200 and then the pressure conducting medium 400, and the influence of excess substances in the pressure conducting medium 400 on the conduction of the pressure is avoided, thereby ensuring the high efficiency and accuracy of the conduction of the pressure to the detection PCB 520, and further improving the pressure detection precision.

In another embodiment of the present invention, as shown in fig. 2 to 4, the detection sensor for a washing machine further includes a fixing member supporter 530, the fixing member supporter 530 is mounted on the elastic film pressing member 600, and the PCB board fixing member 510 is mounted on the fixing member supporter 530. The fixing bracket 530 is used for fixing the PCB fixing member 510, and simultaneously, the PCB fixing member 510 is installed behind the fixing bracket 530, the PCB fixing member 510 gives the pressure on the fixing bracket 530 and the gravity of the fixing bracket 530 all fall on the elastic film pressing member 200, thereby fixing the PCB fixing member 510 and simultaneously having the pressing effect on the elastic film pressing member 600, which has extremely high practicability.

In another embodiment of the present invention, as shown in fig. 2 to 5, the fixing member bracket 530 includes a supporting frame 531, and a plurality of supporting columns 532 are disposed at the bottom of the supporting frame 531; the upper surface of the support frame 531 contacts the PCB fixing member 510, and the bottom of the support column 532 is pressed against the elastic film pressing member 600. In this embodiment, the support frame 531 is disposed in a flat plate shape, and an upper surface of the flat plate-shaped support frame 531 contacts and adheres to the PCB fixing member 510, so as to improve the relative stability of the two. The supporting columns 531 are arranged at equal intervals to ensure the balance of the overall stress of the fixing piece bracket 530. In addition, each of the supporting columns 532 is disposed in a cylindrical shape, and is matched with the flat-plate-shaped supporting frame 531, so that while the supporting function is ensured, the volume occupied by the fixing member bracket 530 in the cavity between the PCB fixing member 510 and the pressure conduction elastic membrane 200 is reduced, so as to ensure that the cavity occupied by the pressure conduction medium 400 between the PCB fixing member 510 and the pressure conduction elastic membrane 200 occupies a larger volume, thereby ensuring the high efficiency and stability of the internal and external pressure conduction.

In another embodiment of the present invention, as shown in fig. 12-13, a partial sidewall of the middle portion of the housing 300 extends toward the outside of the housing 300 to form a fixture mounting table 350, and the fixture mounting table 350 is configured to match with the PCB board fixture 510 so that the PCB board fixture 510 is mounted on the fixture mounting table 510. In this embodiment, when the PCB fixing member 510 is installed on the fixing member installation platform 350, the sidewall of the PCB fixing member 510 is clamped on the fixing member installation platform 350, so that other fixing structures are not needed, the PCB fixing member 510 can be fixed by processing the casing 300 itself, and the production cost for producing other fixing components is saved while the fixing member is convenient and fast.

In another embodiment of the present invention, as shown in fig. 2-5 and 12-13, the PCB board fixing member 510 is provided with a plurality of medium guiding holes 511, and the bottom of each medium guiding hole 511 is outwardly expanded to form a medium outwardly expanded groove 512. Each of the medium guide holes 511 is used to inject the pressure conductive medium 400 into a cavity between the PCB board fixture 510 and the pressure conductive elastic membrane 200. During actual assembly, the PCB board fixing member 510 is installed in the housing 300, the pressure conducting medium 400 is injected through the medium guide holes 511, and after the pressure conducting medium 400 is filled, a vacuum pumping process is performed on a cavity between the PCB board fixing member 510 and the pressure conducting elastic membrane 200, so as to extract excessive gas. In the process of injecting the pressure conducting medium 400, the medium outward-expanding groove is used for accelerating the outflow of the pressure conducting medium 400, so that the liquid injection efficiency is improved, and the problem of blockage during liquid injection is prevented.

In another embodiment of the present invention, as shown in fig. 2 to 4, the detection sensor for a washing machine further includes a silicone fixing member 700, the silicone fixing member 700 is disposed in the housing 300 and above the detection PCB fixing member 510, and the silicone fixing member 700 is further connected to the detection PCB 520 and covers a part of the detection PCB 520. In this embodiment, the silicone piece fixing member 700 is made of a silicone material. After the pressure conducting medium 400 is injected and vacuumized, silica gel is injected into the housing 300, and the housing is kept still for a preset time until the silica gel is solidified, so that the silica gel fixing member 400 is formed, the medium guide hole 512 is blocked after the silica gel fixing member 400 is solidified, so that the pressure conducting medium 400 is ensured to be located in a sealed cavity, and in addition, the silica gel fixing member 700 is adhered to the inner side wall of the PCB fixing member 510 and the inner side wall of the housing 300 in the solidification process, so that the effects of fixing the pressure conducting medium in the housing 300 and fixing the PCB fixing member 510 are achieved.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A washing machine horizontal adjustment reminding method is characterized by comprising the following steps:

2. The method for reminding level adjustment of a washing machine according to claim 1, wherein before the obtaining of the acceleration parameter information of the washing machine, the method further comprises:

3. The method as claimed in claim 2, wherein the actual acceleration parameter information includes an X-axis acceleration component parameter, a Y-axis acceleration component parameter, and a Z-axis acceleration component parameter decomposed in the spatial rectangular coordinate system, and the obtaining the washing machine inclination direction information according to the actual acceleration parameter information specifically includes:

4. The washing machine horizontal adjustment reminding method as claimed in claim 3, wherein the washing machine inclination direction information comprises an indication of inclination towards an X-axis negative half axis, an indication of inclination towards an X-axis positive half axis, an indication of inclination towards a Y-axis negative half axis, and an indication of inclination towards a Y-axis positive half axis;

5. The washing machine leveling reminding method as claimed in claim 4, wherein the washing machine tilt direction information further comprises a tilt towards the first quadrant indication, a tilt towards the second quadrant indication, a tilt towards the third quadrant indication and a tilt towards the fourth quadrant indication;

6. The washing machine horizontal adjustment reminding method as claimed in claim 5, wherein the inclination adjustment prompting message includes an X-axis negative half-axis reverse adjustment instruction, an X-axis positive half-axis reverse adjustment instruction, a Y-axis negative half-axis reverse adjustment instruction, and a Y-axis positive half-axis reverse adjustment instruction;

7. The washing machine level adjustment reminding method as claimed in claim 5, wherein the inclination adjustment prompting message comprises a first quadrant reversal adjustment indication, a second quadrant reversal adjustment indication, a third quadrant reversal adjustment indication and a fourth quadrant reversal adjustment indication;

8. The washing machine leveling reminding method according to any one of claims 3 to 7, characterized in that the method further comprises: and calculating an inclination angle according to the X-axis acceleration component parameter, the Y-axis acceleration component parameter and the Z-axis acceleration component parameter to obtain an inclination angle value between the central line of the washing machine and the horizontal plane.

9. The washing machine leveling reminding method as claimed in claim 8, wherein the tilt angle calculation is based on the following formula:

10. A washing machine leveling reminding device, the device comprising:

11. A washing machine horizontal adjustment reminding system is characterized by comprising a washing machine detection sensor and a washing machine main board control device which are sequentially connected, wherein the washing machine detection sensor comprises a vibration detection circuit, a main control circuit and an interface circuit which are sequentially connected, and the interface circuit is also connected with the washing machine main board control device; wherein,

the main control circuit is used for acquiring the actual acceleration parameter information of the washing machine through the vibration detection circuit;

the main control circuit is used for obtaining the information of the inclination direction of the washing machine according to the actual acceleration parameter information;

the main control circuit is used for obtaining inclination adjustment prompt information according to the washing machine inclination direction information, and the inclination adjustment prompt information is sent to the washing machine main board control device through the interface circuit to prompt a user to perform inclination adjustment on the washing machine.

12. The system for reminding horizontal adjustment of washing machine according to claim 11, wherein the washing machine main board control device comprises a washing machine main control board and a human-computer interaction interface, the washing machine main control board is connected with the interface circuit, the human-computer interaction interface is connected with the washing machine main control board, and the inclination adjustment prompt message is sent by the washing machine main control board and displayed by the human-computer interaction interface.