Balancing detection device for washing machine, washing machine and detection control method

Abstract

The application provides a washing machine balance detection device, a washing machine and a detection control method, and relates to the technical field of washing machines, and solves the technical problem that the measures of increasing displacement sensors or detecting changes in motor power cannot effectively detect whether the machine is installed in balance in the prior art. The device comprises at least two first liquid level detection structures and at least two second liquid level detection structures, the first liquid level detection structure and the second liquid level detection structure are arranged in a detergent box of the washing machine, and the connection line of the first liquid level detection structure and the connection line of the second liquid level detection structure are arranged to be perpendicular. Through the arrangement, the horizontal state of the detergent liquid level on different planes can be detected, so that the current installation balance state of the washing machine can be determined.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of washing machines, in particular to a washing machine balance detection device, a washing machine and a detection control method. BACKGROUND

[0002] Reducing the vibration and noise during the operation of the washing machine has always been the direction of improvement in the process of research and design of the washing machine.

[0003] In view of this problem, at present, in high-end products, displacement sensors are added to detect the displacement during the operation of the washing machine for adjustment. For ordinary products, the change of the power of the motor is mostly detected to judge whether the washing machine has a larger vibration.

[0004] The applicant finds that the prior art at least has the following technical problems:

[0005] The above-mentioned scheme increases the production cost, and the latter has the problem of inaccurate detection. In addition, a large part of the vibration and noise problems of the washing machine are caused by the fact that the user does not completely adjust the machine to the horizontal position during installation, and the above-mentioned schemes cannot effectively detect whether the machine is installed in balance. SUMMARY

[0006] The purpose of the present application is to provide a washing machine balance detection device, a washing machine and a detection control method to solve the technical problem that the measures of adding displacement sensors or detecting the change of the power of the motor in the prior art cannot effectively detect whether the machine is installed in balance. The preferred technical solutions in the many technical solutions provided by the present application can produce many technical effects, which are described in detail below.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0008] The washing machine balance detection device provided by the present application is arranged in the detergent box of the washing machine and comprises at least two first liquid level height detection structures and at least two second liquid level height detection structures, and the connecting line of the first liquid level height detection structure is perpendicular to the connecting line of the second liquid level height detection structure. The first liquid level height detection structure and the second liquid level height detection structure are used to detect the liquid level height of the detergent in the detergent box.

[0009] Preferably, the number of the first liquid level height detection structure and the second liquid level height detection structure is set to two, and the connecting line between the two first liquid level height detection structures is perpendicular to the connecting line between the two second liquid level height detection structures.

[0010] Preferably, the first liquid level detecting structure and the second liquid level detecting structure are identical in structure and are arranged in two different detergent boxes respectively.

[0011] Preferably, the first liquid level detecting structure comprises a probe holder and electrode leads arranged on both sides of the probe holder, the probe holder is fixed on the washing machine shell above the detergent box, one end of the electrode lead can extend into the detergent in the detergent box, and the other end is connected to a detection circuit.

[0012] A washing machine comprising the washing machine balance detecting device.

[0013] Preferably, the washing machine comprises a first detergent box and a second detergent box, the first liquid level detecting structure is arranged in the first detergent box, and the second liquid level detecting structure is arranged in the second detergent box.

[0014] A detection control method of a washing machine as described above, the detection control method comprising:

[0015] determining whether the washing machine is in a stationary state;

[0016] if the washing machine is in a stationary state, determining the installation balance state of the washing machine according to the liquid level difference detected by any two first liquid level detecting structures or any two second liquid level detecting structures.

[0017] Preferably, the step of determining the installation balance state of the washing machine according to the liquid level difference detected by any two first liquid level detecting structures or any two second liquid level detecting structures if the washing machine is in a stationary state specifically comprises:

[0018] if the washing machine is in a stationary state, determining whether the washing machine balance detecting device meets a detection condition;

[0019] if the washing machine balance detecting device meets the detection condition, determining the installation balance state of the washing machine according to the liquid level difference detected by any two first liquid level detecting structures or any two second liquid level detecting structures.

[0020] Preferably, the step of determining whether the washing machine balance detecting device meets the detection condition comprises:

[0021] obtaining the detergent liquid level detected by each first liquid level detecting structure and second liquid level detecting structure;

[0022] comparing the detergent liquid level detected by each first liquid level detecting structure and second liquid level detecting structure with a minimum liquid level threshold;

[0023] If the detergent liquid level detected by each of the first liquid level detection structure and the second liquid level detection structure is greater than the liquid level minimum threshold, the washing machine balance detection device meets the detection condition.

[0024] Preferably, if the detergent liquid level detected by the first liquid level detection structure or the second liquid level detection structure is less than the liquid level minimum threshold, the washing machine balance detection device does not meet the detection condition.

[0025] Preferably, if the detergent liquid level detected by each of the first liquid level detection structure and the second liquid level detection structure is less than the liquid level minimum threshold, it indicates that the washing liquid stock is insufficient, prompting the user to add detergent.

[0026] Preferably, the step of determining the installation balance state of the washing machine according to the liquid level difference detected by any two first liquid level detection structures or any two second liquid level detection structures comprises:

[0027] obtaining a first liquid level difference between the detergent liquid levels detected by any two first liquid level detection structures, and a second liquid level difference between the detergent liquid levels detected by any two second liquid level detection structures;

[0028] comparing whether the first liquid level difference and the second liquid level difference are both 0, and determining whether the washing machine is in the installation balance state according to the comparison result.

[0029] Preferably, the step of determining whether the washing machine is in the installation balance state according to the comparison result comprises:

[0030] if the first liquid level difference and the second liquid level difference are both 0, it indicates that the washing machine is in the installation balance state;

[0031] if the first liquid level difference or the second liquid level difference is not 0, it indicates that the washing machine is in the installation imbalance state.

[0032] Preferably, if the washing machine is in the installation imbalance state, the foot pad of the washing machine is adjusted.

[0033] Preferably, the number of the first liquid level detection structure and the second liquid level detection structure is set to two, the difference between the detergent liquid levels detected by the two first liquid level detection structures is a first liquid level difference, and the difference between the detergent liquid levels detected by the two second liquid level detection structures is a second liquid level difference.

[0034] Preferably, the step of adjusting the foot pad of the washing machine comprises:

[0035] If the first liquid level difference value is not 0, adjusting the left or right foot pad of the washing machine;

[0036] If the second liquid level difference value is not 0, adjusting the front or rear foot pad of the washing machine.

[0037] Preferably, the detection control method further comprises:

[0038] During the dehydration process of the washing machine, starting the balance detection device of the washing machine;

[0039] According to the change values of the detergent liquid level detected by each of the first liquid level height detection structures and the second liquid level height detection structures before and after the interval time t, determining the running balance state of the washing machine.

[0040] Preferably, the step of determining the running balance state of the washing machine according to the change values of the detergent liquid level detected by each of the first liquid level height detection structures and the second liquid level height detection structures before and after the interval time t comprises:

[0041] Obtaining the detergent liquid level detected by each of the first liquid level height detection structures and the second liquid level height detection structures before the interval time t;

[0042] Obtaining the detergent liquid level detected by each of the first liquid level height detection structures and the second liquid level height detection structures after the interval time t;

[0043] Obtaining the change values of the detergent liquid level detected by each of the first liquid level height detection structures and the second liquid level height detection structures before and after the interval time t;

[0044] Comparing the change values of the detergent liquid level detected by each of the first liquid level height detection structures and the second liquid level height detection structures with a liquid level change threshold value, and determining whether the washing machine is in a running balance state according to the comparison result.

[0045] Preferably, the step of determining whether the washing machine is in a running balance state according to the comparison result comprises:

[0046] If the change values of the detergent liquid level detected by each of the first liquid level height detection structures and the second liquid level height detection structures are all less than the liquid level change threshold value, the washing machine is in a running balance state;

[0047] If there is a change value of the detergent liquid level detected by the first liquid level height detection structure or the second liquid level height detection structure that is greater than the liquid level change threshold value, the washing machine is in a running imbalance state.

[0048] The laundry machine balance detection device provided by the application comprises at least two first liquid level height detection structures and at least two second liquid level height detection structures, the first liquid level height detection structure and the second liquid level height detection structure are arranged in a detergent box of the laundry machine, and the connection line of the first liquid level height detection structure and the connection line of the second liquid level height detection structure are arranged to be perpendicular to each other. Through the arrangement, the horizontal state of the detergent liquid level on different planes (x plane and y plane) can be detected, and the installation balance state of the laundry machine is determined according to the liquid level height difference detected by any two first liquid level height detection structures or any two second liquid level height detection structures. Thus, the vibration and noise problems of the laundry machine during operation are improved, and the user experience is improved. BRIEF DESCRIPTION OF DRAWINGS

[0049] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings.

[0050] Figure 1 is a structural schematic diagram of the laundry machine provided by the embodiment of the present application;

[0051] Figure 2 is a principle diagram of the first liquid level height detection structure provided by the embodiment of the present application;

[0052] Figure 3 is a principle diagram of the second liquid level height detection structure provided by the embodiment of the present application;

[0053] Figure 4 is a structural diagram of the first liquid level height detection structure provided by the embodiment of the present application;

[0054] Figure 5 is a flow chart of the detection and control method for the installation balance of the laundry machine provided by the embodiment of the present application;

[0055] Figure 6 is a flow chart of the detection and control method for the running balance of the laundry machine provided by the embodiment of the present application.

[0056] The drawings are as follows: 1, detergent box; 2, foot pad; 3, first liquid level height detection structure; 31, probe support; 32, electrode lead; 4, second liquid level height detection structure. DETAILED DESCRIPTION

[0057] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0058] Referring to Figures 1-4 The present application provides a washing machine balance detection device, which is arranged in a detergent box 1 of a washing machine and comprises at least two first liquid level detection structures 3 and at least two second liquid level detection structures 4, and the connecting line of the first liquid level detection structure 3 is perpendicular to the connecting line of the second liquid level detection structure 4. The first liquid level detection structure 3 and the second liquid level detection structure 4 are used for detecting the liquid level of the detergent in the detergent box 1.

[0059] As an optional implementation manner of the present application, the number of the first liquid level detection structure 3 and the second liquid level detection structure 4 is both set to two. The first liquid level detection structure 3 and the second liquid level detection structure 4 are both arranged vertically in the detergent box 1. Two first liquid level detection structures 3 are arranged at intervals in a first direction, and two second liquid level detection structures 4 are arranged at intervals in a second direction. The connecting line between the two first liquid level detection structures 3 is perpendicular to the connecting line between the two second liquid level detection structures 4, which is used for detecting the horizontal state of the detergent liquid surface in different planes.

[0060] In the present embodiment, the difference between the liquid levels detected by the two first liquid level detection structures 3 is used to detect the horizontal state of the x-plane detergent liquid surface, and the difference between the liquid levels detected by the two second liquid level detection structures 4 is used to detect the horizontal state of the y-plane detergent liquid surface, so as to judge whether the washing machine is installed in place, thereby improving the vibration and noise problems in the running process of the washing machine.

[0061] In order to simplify the structure, the first liquid level detection structure 3 and the second liquid level detection structure 4 in the present embodiment have the same structure. The washing machine generally has two detergent boxes 1, which can store detergents (including detergents and softeners). Preferably, the first liquid level detection structure 3 and the second liquid level detection structure 4 are arranged in two different detergent boxes 1 respectively. In this way, the arrangement distance between the first liquid level detection structure 3 and the second liquid level detection structure 4 can be better guaranteed.

[0062] The first and second liquid level detection structures 3 and 4 utilize probes capable of detecting liquid levels. Specifically, the first liquid level detection structure 3 includes a probe holder 31 and electrode leads 32 disposed on either side of the probe holder 31. The probe holder 31 is secured to the washing machine housing above the detergent box 1. One end of the electrode lead 32 extends into the detergent within the detergent box 1, while the other end of the electrode lead 32 is connected to a detection circuit. The resistance between the two electrode leads 32 on the same probe changes depending on the depth of the liquid within the detergent box 1, thereby detecting the liquid level.

[0063] In addition, the present invention further provides a washing machine including the above-described washing machine balance detection device. The washing machine includes two detergent boxes 1, namely a first detergent box 1 and a second detergent box 1. All first liquid level detection structures 3 are disposed in the first detergent box 1, and all second liquid level detection structures 4 are disposed in the second detergent box 1.

[0064] As an optional implementation scheme of an embodiment of the present invention, two first liquid level height detection structures 3 are provided in the first detergent box 1, and the two first liquid level height detection structures 3 are arranged at intervals in the first detergent box 1, and two second liquid level height detection structures 4 are provided in the second detergent box 1, and the two second liquid level height detection structures 4 are arranged at intervals in the second detergent box 1, and the connecting line between the two first liquid level height detection structures 3 and the connecting line between the two second liquid level height detection structures 4 are perpendicular to each other, that is, the two first liquid level height detection structures 3 and the two second liquid level height detection structures 4 are respectively used to detect the horizontal states of the detergent liquid levels in different planes.

[0065] like Figure 2 and Figure 3 As shown, the two first liquid level detection structures 3 in this embodiment are used to detect the horizontal state of the detergent liquid level in the X plane, and the two second liquid level detection structures 4 are used to detect the horizontal state of the detergent liquid level in the Y plane. Specifically, the balance state of the washing machine is determined by the difference in the detergent liquid level detected by the two first liquid level detection structures 3 and the difference in the detergent liquid level detected by the two second liquid level detection structures 4.

[0066] In addition, the present invention further provides a detection and control method for the washing machine in the above embodiment, comprising:

[0067] S31, determining whether the washing machine is in a stationary state;

[0068] S32: If the washing machine is in a stationary state, the installation balance state of the washing machine is determined according to the liquid level difference detected by any two first liquid level detection structures 3 or any two second liquid level detection structures 4.

[0069] In step S32, if the washing machine is in a stationary state, the step of determining the installation balance state of the washing machine according to the liquid level difference detected by any two first liquid level detection structures 3 or any two second liquid level detection structures 4, specifically includes:

[0070] If the washing machine is in a stationary state, it is determined whether the washing machine balance detection device meets the detection condition;

[0071] If the washing machine balance detection device meets the detection condition, the installation balance state of the washing machine is determined according to the liquid level difference detected by any two first liquid level detection structures 3 or any two second liquid level detection structures 4.

[0072] Further, the step of determining whether the washing machine balance detection device meets the detection condition includes:

[0073] Obtaining the detergent liquid level detected by each first liquid level detection structure 3 and each second liquid level detection structure 4;

[0074] Comparing the detergent liquid level detected by each first liquid level detection structure 3 with the minimum liquid level threshold, and comparing the detergent liquid level detected by each second liquid level detection structure 4 with the minimum liquid level threshold;

[0075] If the detergent liquid level detected by each first liquid level detection structure 3 is greater than the minimum liquid level threshold, and the detergent liquid level detected by each second liquid level detection structure 4 is greater than the minimum liquid level threshold, it indicates that the washing machine balance detection device meets the detection condition, and the next step of balance detection can be performed;

[0076] If the detergent liquid level detected by any one first liquid level detection structure 3 or any one second liquid level detection structure 4 is less than the minimum liquid level threshold, it indicates that the washing machine balance detection device does not meet the detection condition, at this time it indicates that the washing liquid in the corresponding washing box is insufficient, and the user can be prompted to add detergent.

[0077] Further, the step of determining the installation balance state of the washing machine according to the liquid level difference detected by any two first liquid level detection structures 3 or any two second liquid level detection structures 4, specifically includes:

[0078] The first liquid level difference between the two first liquid level detection structures 3 and the second liquid level difference between the two second liquid level detection structures 4 are obtained. It should be noted that two first liquid level detection structures 3 and two second liquid level detection structures 4 are generally provided in the washing machine. If more than two first liquid level detection structures 3 and more than two second liquid level detection structures 4 are provided in the washing machine, the liquid level difference can be calculated by taking the liquid level detected by two first liquid level detection structures 3. The remaining first liquid level detection structures 3 can be used as a backup. Generally, the two first liquid level detection structures 3 farthest apart are selected to calculate the liquid level difference. The same applies to the second liquid level detection structures 4. The liquid level difference can be calculated by taking the liquid level detected by two second liquid level detection structures 4. The remaining second liquid level detection structures 4 can be used as a backup. Generally, the two second liquid level detection structures 4 farthest apart are selected to calculate the liquid level difference.

[0079] The first liquid level difference and the second liquid level difference are compared to determine whether the washing machine is in a balanced installation state.

[0080] Further, if the first liquid level difference and the second liquid level difference are both 0, it indicates that the washing machine is in a balanced installation state.

[0081] If the first liquid level difference or the second liquid level difference is not 0, it indicates that the washing machine is in an unbalanced installation state.

[0082] In addition, if the washing machine is in an unbalanced installation state, the imbalance of the washing machine can be adjusted by adjusting the feet of the washing machine to make the washing machine as balanced as possible.

[0083] In the washing machine of the present embodiment, the number of first liquid level detection structures 3 and second liquid level detection structures 4 is preferably two. That is, the difference between the liquid levels detected by the two first liquid level detection structures 3 is the first liquid level difference, and the difference between the liquid levels detected by the two second liquid level detection structures 4 is the second liquid level difference. The two first liquid level detection structures 3 are used to detect the horizontal state of the detergent liquid surface in the X plane, and the two second liquid level detection structures 4 are used to detect the horizontal state of the detergent liquid surface in the Y plane. If the first liquid level difference is not 0, the left foot or the right foot of the washing machine is adjusted. If the second liquid level difference is not 0, the front foot or the rear foot of the washing machine is adjusted.

[0084] The washing machine balancing device in the embodiment can not only detect whether the washing machine is installed with a balance, but also detect whether an imbalance occurs in the running process of the washing machine. Therefore, the detection and control method of the washing machine in the embodiment further includes:

[0085] S41, starting the washing machine balancing detection device in the dehydration process of the washing machine;

[0086] S42, judging the running balance state of the washing machine according to the change values of the detergent liquid level detected by each first liquid level detection structure 3 and the change values of the detergent liquid level detected by each second liquid level detection structure 4 before and after the interval time t.

[0087] Further, the step of judging the running balance state of the washing machine according to the change values of the detergent liquid level detected by each first liquid level detection structure 3 and the change values of the detergent liquid level detected by each second liquid level detection structure 4 before and after the interval time t includes:

[0088] obtaining the detergent liquid levels detected by each first liquid level detection structure 3 and second liquid level detection structure 4 before the interval time t;

[0089] obtaining the detergent liquid levels detected by each first liquid level detection structure 3 and second liquid level detection structure 4 after the interval time t;

[0090] obtaining the change values of the detergent liquid level detected by each first liquid level detection structure 3 and the change values of the detergent liquid level detected by each second liquid level detection structure 4 before and after the interval time t;

[0091] comparing the change values of the detergent liquid level detected by each first liquid level detection structure 3 and the change values of the detergent liquid level detected by each second liquid level detection structure 4 with the liquid level change threshold value;

[0092] if the change values of the detergent liquid level detected by each first liquid level detection structure 3 and the change values of the detergent liquid level detected by each second liquid level detection structure 4 are all less than the liquid level change threshold value, the washing machine is in a running balance state;

[0093] if the change values of the detergent liquid level detected by each first liquid level detection structure 3 or the change values of the detergent liquid level detected by each second liquid level detection structure 4 are greater than the liquid level change threshold value, the washing machine is in a running imbalance state.

[0094] The above steps will be described in detail in combination with specific embodiments.

[0095] The washing machine is provided with a first detergent box 1 and a second detergent box 1, wherein two first liquid level detection structures 3 are provided in the first detergent box 1 (the first liquid level detection structure 3 uses probes, and the two probes are represented by P1 and P2), and the two first liquid level detection structures 3 are vertically spaced apart in the first detergent box 1, and two second liquid level detection structures 4 are provided in the second detergent box 1 (the second liquid level detection structure 4 uses probes, and the two probes are represented by P3 and P4), and the two second liquid level detection structures 4 are vertically spaced apart in the second detergent box 1, and the connecting line between the two first liquid level detection structures 3 and the connecting line between the two second liquid level detection structures 4 are perpendicular to each other. That is to say, the two first liquid level detection structures 3 and the two second liquid level detection structures 4 are respectively used to detect the horizontal states of the detergent liquid levels in different planes.

[0096] Figure 5 This is the logic diagram of the installation balance detection program for the washing machine. Before each start-up (referring to starting functions such as washing and dehydration that require the drum to rotate), the washing machine will first be tested for installation balance in a static state. First, the liquid level heights of the liquid level probes P1, P2, P3, and P4 are obtained, which are H P1 、H P2 、H P3 、H P4 , if H P1 、H P2 、H P3 、H P4 If the liquid level detected by any of the probes is less than the minimum liquid level threshold hmin, it indicates that the detergent inventory does not meet the operation and detection conditions, and the user is prompted to add detergent, and the balance detection function is not available.

[0097] If the liquid level H P1 、H P2 、H P3 、H P4 If both are greater than the minimum liquid level threshold hmin, the equilibrium state detection is performed and the liquid level height difference H is calculated. P1 -H P2 =∆Zx and H P3 -H P4 =∆Zy. If ∆Zx and ∆Zy are both 0, the washing machine is in a balanced installation state. If ∆Zx or / and ∆Zy are not 0, the washing machine is in an unbalanced installation state.

[0098] Based on the calculation results ∆Zx=L1 and ∆Zy=L2, the required adjustment heights f1(L1) and f2(L2) for the left and right footrests and the front and rear footrests are calculated. The adjustment height fx is calculated based on the height difference Lx, and the result is fed back to the user. The calculation method for f1(L1) and f2(L2) is as follows:

[0099] f1(L1)=a*L1+b, f2(L2)=c*L2+d, where a ranges from -5 to 20, b ranges from -25 to (-5), c ranges from -5 to 20, and d ranges from -25 to (-5). After obtaining the adjusted height, the height can be converted to the number of turns required for foot pad 2. The number of turns required for the left or right foot pad is equal to k1*f1 or -(k1*f1). The height of the foot pad can be changed by rotating it left or right. The number of turns can be determined using the formula ±(k1*f1). f1 is the adjusted height f1(L1) obtained above, which is converted to the number of turns by multiplying it by the coefficient k1. "±" represents the direction of rotation. For example, when the left and right sides are unbalanced, the required height f1 is f1(L1). The number of turns k1*f1 is calculated, and the left foot pad can be rotated left or right. The number of adjustment circles of the front or rear foot pad is equal to k2*f1 or -(k2*f1). The adjustment principle is the same as that of the left and right foot pads. The value range of k1 and k2 is 0.2~0.8.

[0100] The balance detection logic during the operation of the washing machine of the present invention is as follows Figure 6 As shown in the figure, when the washing machine enters the dehydration stage, the balance detection function is turned on. First, the liquid level height L of the four probes P1, P2, P3, and P4 is obtained. P1 , L P2 , L P3 , L P4 , after a certain time interval t, measure the liquid level heights L`P1, L`P2, L`P3, L`P4 of P1, P2, P3, P4 again, and calculate the change in liquid level height ∆Lx = LPx-L`Px. If there is a change in the liquid level height of one of the probes (∆L1, ∆L2, ∆L 3、 or ∆L4) exceeds the liquid level change threshold T, it indicates that the vibration amplitude of the washing machine is too large and the washing machine is in an unbalanced state. It is necessary to adjust the motor control logic, or control the washing machine to execute the pause program or the lowering program first; if the changes in the liquid level heights of all probes (∆L1, ∆L2, ∆L 3、 If both ∆L4 and ∆L5 are smaller than the liquid level change threshold T, it indicates that the vibration of the washing machine is within an acceptable range, the washing machine is in a balanced operating state, and can continue to operate.

[0101] The liquid level plane of the detergent in the detergent dispensing box will change according to the current balance state of the washing machine, for example, when the washing machine is tilted in the x-axis direction, the liquid level plane will also show the inconsistency of the height of both ends in the x-axis direction. The advantage of arranging the washing machine balance detection device in the washing liquid storage box is that the balance detection can not be affected by the movement of the drum during the operation of the washing machine, and at the same time, due to the integration of liquid level detection and balance detection functions, the use cost of the sensor can be effectively reduced.

[0102] By multiplexing the liquid level probe in the detergent dispensing box, the liquid level state and the liquid level fluctuation amplitude are detected, so as to judge the installation balance state and the vibration amplitude of the washing machine in operation. While reducing the use cost of the sensor, the vibration and direction of the washing machine can be accurately measured, so as to improve the vibration and noise problems in the operation of the washing machine and improve the user experience.

[0103] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A detection control method of a washing machine, characterized by, The washing machine comprises a washing machine balance detection device, which is arranged in a detergent box of the washing machine and comprises at least two first liquid level detection structures and at least two second liquid level detection structures, and the connecting lines of the first liquid level detection structures are perpendicular to the connecting lines of the second liquid level detection structures, and the first liquid level detection structures and the second liquid level detection structures are used for detecting the liquid level of the detergent in the detergent box. The detection control method comprises: determining whether the washing machine is in a stationary state; if the washing machine is in a stationary state, determining the installation balance state of the washing machine according to the liquid level difference detected by any two first liquid level detection structures or any two second liquid level detection structures.

2. The detection control method according to claim 1, characterized by, The step of determining the installation balance state of the washing machine according to the liquid level difference detected by any two first liquid level detection structures or any two second liquid level detection structures if the washing machine is in a stationary state specifically comprises: if the washing machine is in a stationary state, determining whether the washing machine balance detection device meets the detection condition; if the washing machine balance detection device meets the detection condition, determining the installation balance state of the washing machine according to the liquid level difference detected by any two first liquid level detection structures or any two second liquid level detection structures.

3. The detection control method according to claim 2, characterized by, The step of determining whether the washing machine balance detection device meets the detection condition comprises: obtaining the liquid level of the detergent detected by each first liquid level detection structure and second liquid level detection structure; comparing the liquid level of the detergent detected by each first liquid level detection structure and second liquid level detection structure with a minimum liquid level threshold value; if the liquid level of the detergent detected by each first liquid level detection structure and second liquid level detection structure is greater than the minimum liquid level threshold value, the washing machine balance detection device meets the detection condition.

4. The detection control method according to claim 3, characterized by, if the liquid level of the detergent detected by any first liquid level detection structure or second liquid level detection structure is less than the minimum liquid level threshold value, the washing machine balance detection device does not meet the detection condition.

5. The detection control method according to claim 3 or 4, characterized by, if the liquid level of the detergent detected by any first liquid level detection structure and second liquid level detection structure is less than the minimum liquid level threshold value, it indicates that the amount of washing liquid is insufficient, prompting the user to add detergent.

6. The detection control method according to claim 1, characterized by, The step of determining the installation balance state of the washing machine according to the liquid level difference detected by any two first liquid level detection structures or any two second liquid level detection structures specifically comprises: obtaining a first liquid level difference value between the liquid levels of the detergent detected by any two first liquid level detection structures and a second liquid level difference value between the liquid levels of the detergent detected by any two second liquid level detection structures; comparing whether the first liquid level difference value and the second liquid level difference value are both 0, and determining whether the washing machine is in an installation balance state according to the comparison result.

7. The detection control method according to claim 6, characterized by, The step of determining whether the washing machine is in an installation balance state according to the comparison result comprises: If the first liquid level difference value and the second liquid level difference value are both 0, it indicates that the washing machine is in an installation balanced state; If the first liquid level difference value or the second liquid level difference value is not 0, it indicates that the washing machine is in an installation unbalanced state.

8. The detection control method according to claim 7, wherein, If the washing machine is in an installation unbalanced state, the feet of the washing machine are adjusted.

9. The detection control method according to claim 8, characterized by, The number of the first liquid level detection structures and the second liquid level detection structures is both set to two, the difference of the washing agent liquid level detected by the two first liquid level detection structures is a first liquid level difference value, and the difference of the washing agent liquid level detected by the two second liquid level detection structures is a second liquid level difference value.

10. The detection control method according to claim 9, characterized by, The step of adjusting the feet of the washing machine comprises: If the first liquid level difference value is not 0, the left or right feet of the washing machine are adjusted; If the second liquid level difference value is not 0, the front or back feet of the washing machine are adjusted.

11. The detection control method according to claim 1, characterized by, The detection control method further comprises: During the dehydration process of the washing machine, the balance detection device of the washing machine is started; The running balance state of the washing machine is determined according to the washing agent liquid level change values detected by the first liquid level detection structures and the second liquid level detection structures before and after the interval time t.

12. The detection control method according to claim 11, wherein The step of determining the running balance state of the washing machine according to the washing agent liquid level change values detected by the first liquid level detection structures and the second liquid level detection structures before and after the interval time t comprises: The washing agent liquid levels detected by the first liquid level detection structures and the second liquid level detection structures before the interval time t are obtained; The washing agent liquid levels detected by the first liquid level detection structures and the second liquid level detection structures after the interval time t are obtained; The washing agent liquid level change values detected by the first liquid level detection structures and the second liquid level detection structures before and after the interval time t are obtained; The washing agent liquid level change values detected by the first liquid level detection structures and the second liquid level detection structures are compared with a liquid level change threshold value, and the running balance state of the washing machine is determined according to the comparison result.

13. The detection control method according to claim 12, wherein The step of determining the running balance state of the washing machine according to the comparison result comprises: If the washing agent liquid level change values detected by the first liquid level detection structures and the second liquid level detection structures are both less than the liquid level change threshold value, the washing machine is in a running balanced state; If the washing agent liquid level change values detected by the first liquid level detection structures or the second liquid level detection structures are greater than the liquid level change threshold value, the washing machine is in a running unbalanced state.

14. The detection control method according to claim 1, characterized by, The number of the first liquid level detection structures and the second liquid level detection structures is both set to two, and the line connecting the two first liquid level detection structures is perpendicular to the line connecting the two second liquid level detection structures.

15. The detection control method according to claim 1, characterized by, The first liquid level detection structure and the second liquid level detection structure are the same in structure and are respectively arranged in two different washing agent boxes.

16. The detection control method according to claim 1, characterized by, The first liquid level detection structure comprises a probe support and electrode leads arranged on both sides of the probe support, the probe support is fixed on the washing machine shell above the detergent box, one end of the electrode leads can extend into the detergent in the detergent box, and the other end is connected to a detection circuit.

17. The detection control method according to claim 1, characterized by, The washing machine comprises a first detergent box and a second detergent box, the first liquid level detection structure is arranged in the first detergent box, and the second liquid level detection structure is arranged in the second detergent box.

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