Washing machine and control method thereof

Abstract

The invention relates to a washing machine and a control method thereof, and the washing machine comprises a housing which is provided with a containing cavity; the washing barrel is rotatably arranged in the accommodating cavity; the detection element is arranged on the radial inner side wall of the containing cavity, and the detection element is arranged to detect the distance between the washing barrel and the shell; the adjusting mechanism comprises a first adjusting part and a second adjusting part, the first adjusting part is arranged on the radial inner side wall of the containing cavity, and the second adjusting part is arranged on the radial outer side wall of the washing barrel; the first adjusting part and the second adjusting part are arranged to interact so as to drive the washing barrel to move relative to the containing cavity. The position of the washing barrel is monitored in real time through the detection element, and the eccentricity condition of the washing barrel can be determined in time. According to the washing machine, interaction force can be generated between the first adjusting part and the second adjusting part, the washing barrel is driven to move relative to the containing cavity, polarization and noise caused by deviation are restrained by actively adjusting the position of the washing barrel, and the operation stability and the mute performance of the washing machine are remarkably improved.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to a washing machine and a control method thereof. Background Art

[0002] In modern families, washing machines are an indispensable household appliance, and the stability of their performance and the comfort of use have always been the focus of consumers. During the working process of the washing machine, especially in the washing and dehydration state, the rotating container (such as the washing tub) inside it will drive the clothes and water to move in a high-speed circular motion. Since the distribution of clothes and water is often uneven, they will gather on one side of the washing tub, thereby generating gravity during the rotation process. This gravity will generate a positive eccentric force on the rotating shaft of the container and the washing tub itself under the decomposition of rotation.

[0003] According to the principle of force interaction, this positive eccentric force will be further transmitted to the whole washing machine. Under high-speed rotation, this eccentric force will cause the washing machine to vibrate periodically. This vibration will not only affect the stability and service life of the washing machine, but also generate noise through the interaction between the washing tub container and the whole machine shell, and the contact between the shell and the ground on which it is placed. Summary of the invention

[0004] The present application provides a washing machine and a control method thereof, which can solve the vibration and noise problems generated by the washing machine during operation by starting from the source of vibration, and improve the stability and comfort of use of the washing machine.

[0005] In a first aspect, the present application provides a washing machine, comprising:

[0006] A housing having a receiving cavity;

[0007] A washing tub rotatably disposed in the accommodating cavity;

[0008] a detection element, disposed on a radial inner wall of the accommodating cavity, wherein the detection element is configured to detect a distance between the washing tub and the housing; and

[0009] The adjustment mechanism includes a first adjustment part and a second adjustment part, wherein the first adjustment part is arranged on the radial inner wall of the accommodating cavity, and the second adjustment part is arranged on the radial outer wall of the washing tub; wherein the first adjustment part and the second adjustment part are arranged to interact with each other to drive the washing tub to move relative to the accommodating cavity.

[0010] In a possible implementation, the first adjustment part includes a plurality of strong magnets, which are sequentially arranged along the circumferential inner wall of the accommodating cavity; the second adjustment part includes a plurality of electromagnets, which are sequentially arranged along the circumferential outer wall of the washing tub;

[0011] When powered on, the strong magnet and the corresponding electromagnet excite each other to generate a force, wherein the force includes a repulsive force or an attractive force.

[0012] In a possible implementation, the strong magnet and the electromagnet have the same or opposite polarities to stimulate the repulsive force or the attractive force.

[0013] In a possible implementation, the plurality of strong magnets are symmetrically arranged in pairs along the radial direction of the accommodating cavity; and the plurality of electromagnets are symmetrically arranged in pairs along the radial direction of the washing tub.

[0014] In a possible implementation, the detection element includes a plurality of infrared sensors, and the plurality of infrared sensors are sequentially arranged along the circumferential inner wall of the accommodating cavity.

[0015] In a second aspect, the present application provides a control method for a washing machine, which is applied to the washing machine as described in the first aspect, and the control method for the washing machine includes:

[0016] Obtaining the distance information between the washing tub and the housing;

[0017] Based on the spacing information, determining an offset of the washing tub;

[0018] According to the offset, the washing tub is driven to adjust the relative position between the washing tub and the housing.

[0019] In a possible implementation, determining the offset of the washing tub based on the spacing information includes:

[0020] Based on the spacing information, determining a plurality of first spacing values ​​between the washing tub and the housing;

[0021] Determining a current axis position of the washing tub based on the plurality of first spacing values;

[0022] Obtaining a preset axis position of the washing tub;

[0023] Based on the current axis position and the preset axis position, the offset of the washing tub is determined.

[0024] In a possible implementation, determining the offset of the washing tub based on the spacing information includes:

[0025] Based on the spacing information, determining a plurality of second spacing values ​​between the washing tub and the housing;

[0026] Acquire a plurality of preset spacing values ​​between the washing tub and the housing;

[0027] Based on the second spacing value and the preset spacing value, an offset amount of the washing tub is determined.

[0028] In a possible implementation, the obtaining the distance information between the washing tub and the housing includes:

[0029] A plurality of distance measuring points are set to determine the distance information between the washing tub and the housing.

[0030] In a possible implementation, driving the washing tub according to the offset to adjust the relative position between the washing tub and the housing includes:

[0031] According to the offset, the polarity between the strong magnet and the electromagnet is determined, and the current value of the strong magnet is adjusted;

[0032] The current value of the strong magnet stimulates the driving force between the strong magnet and the electromagnet to drive the washing tub to adjust the relative position between the washing tub and the shell.

[0033] In a possible implementation, the offset is proportional to the current value of the strong magnet.

[0034] The above technical solution provided by the embodiment of the present application has the following advantages over the prior art: by detecting the distance between the washing tub and the housing through the detection element, the position of the washing tub is monitored in real time, and the eccentricity of the washing tub can be determined in time. The adjustment mechanism adjusts the washing tub based on the eccentricity of the washing tub, and the first adjustment part and the second adjustment part can generate an interaction force to drive the washing tub to move relative to the accommodating cavity, effectively solving the problem of the displacement of the washing tub during the rotation process. By actively adjusting the position of the washing tub, the polarization and noise caused by the displacement are suppressed, and the running stability and quietness of the washing machine are significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0037] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0038] Figure 1 A front structural schematic diagram of a washing machine provided in an embodiment of the present application;

[0039] Figure 2 A schematic diagram of the back structure of a washing machine provided in an embodiment of the present application;

[0040] Figure 3 A schematic diagram of the positive eccentric force of the washing tub provided in an embodiment of the present application;

[0041] Figure 4 A schematic diagram of a detection element provided in an embodiment of the present application;

[0042] Figure 5 A schematic diagram of an adjustment mechanism provided in an embodiment of the present application;

[0043] Figure 6 A schematic flow chart of a method for controlling a washing machine provided in an embodiment of the present application;

[0044] Figure 7 A schematic flow chart of a method for controlling a washing machine provided in an embodiment of the present application;

[0045] Figure 8 A schematic flow chart of a method for controlling a washing machine provided in an embodiment of the present application;

[0046] Fig. 9 A schematic flow chart of a method for controlling a washing machine provided in an embodiment of the present application.

[0047] Description of reference numerals:

[0048] 1. housing; 11. accommodating cavity; 111. first groove; 112. second groove;

[0049] 2. Washing tub; 21. Third groove; 3. Detection element; 31. First infrared sensor; 32. Second infrared sensor; 33. Third infrared sensor; 34. Fourth infrared sensor;

[0050] 4. Adjustment mechanism; 41. First adjustment part; 411. Strong magnet; 42. Second adjustment part; 421. Electromagnet; 4211. Iron core; 4212. Coil; 5. Driving mechanism; 51. Driving motor; 52. Driving belt. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0052] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0053] For ease of description, spatial relative terms may be used herein to describe the relative positional relationship or movement of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", "front", "back", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure undergoes a position flip or a change in posture or a change in motion state, then these directional indications also change accordingly, for example: an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative descriptors used herein are interpreted accordingly.

[0054] In the related art, a vibration reduction support system and a counterweight are used. The vibration reduction support system is usually fixed around the outer tub, and is intended to absorb and disperse vibration energy through its elasticity and damping characteristics, thereby ensuring the balance of the washing machine. The counterweight is usually placed at the bottom of the washing machine to increase the overall weight of the washing machine, suppress the amplitude of the eccentric force, and ensure that the washing machine can still work stably under strong shaking.

[0055] However, these traditional measures mainly focus on vibration and noise suppression outside the source, that is, taking passive measures on the transmission path of vibration and noise. The effect of this method is often limited, especially when the washing machine rotates at high speed and the eccentric force is large, the vibration and noise suppression effect is not obvious.

[0056] In order to solve the above technical problems, the present application provides a washing machine including a shell, a washing tub, a detection element and an adjustment mechanism. The shell has a containing cavity, the washing tub is rotatably arranged in the containing cavity, the detection element is arranged on the radial inner wall of the containing cavity, the detection element is arranged to detect the distance between the washing tub and the shell, and the adjustment mechanism includes a first adjustment part and a second adjustment part, the first adjustment part is arranged on the radial inner wall of the containing cavity, and the second adjustment part is arranged on the radial outer wall of the washing tub; the first adjustment part and the second adjustment part are arranged to interact with each other to drive the washing tub to move relative to the containing cavity. The distance between the washing tub and the shell is detected by the detection element, and the position of the washing tub is monitored in real time, so that the eccentricity of the washing tub can be determined in time. The adjustment mechanism adjusts the washing tub based on the eccentricity of the washing tub, and the interaction force can be generated between the first adjustment part and the second adjustment part to drive the washing tub to move relative to the containing cavity, which effectively solves the problem of the displacement of the washing tub during the rotation process. By actively adjusting the position of the washing tub, the polarization and noise caused by the displacement are suppressed, and the running stability and quietness of the washing machine are significantly improved.

[0057] In some exemplary embodiments, Figure 1 As shown, a washing machine is used for washing clothes, etc., to meet the daily cleaning needs of users and improve the user experience. The washing machine includes a housing 1, a washing tub 2, a detection element 3 and an adjustment mechanism 4, which is designed to be a precise detection and adjustment mechanism, effectively solve the problem of the deviation of the washing tub 2 during the rotation process, thereby significantly reducing the operating noise of the washing machine and improving the overall user experience. Of course, it is understandable that the washing machine also includes other auxiliary components, such as Figure 2 As shown, the washing machine includes a driving mechanism 5, which includes a driving motor 51 and a driving belt 52. One side of the driving belt 52 is mounted on a driving wheel of the driving motor 51, and the other side of the driving belt 52 is mounted on the outer side of the washing tub 2. The driving motor 51 drives the driving belt 52 to move through the driving wheel, thereby driving the washing tub 2 to rotate. The specific details shall be subject to actual conditions and are not limited here.

[0058] In this embodiment, if Figure 1 As shown, the housing 1 has a housing cavity 11 for accommodating the washing tub 2 or other auxiliary components to ensure the flatness of the appearance of the washing machine and to protect it. The housing cavity 11 may be cylindrical, for example, so that its shape matches the shape of the washing tub 2, ensuring the stability of the washing tub 2 during rotation, preventing the washing tub 2 from colliding with the housing 1 during rotation, and improving the safety during rotation.

[0059] In this embodiment, if Figure 1 As shown, the washing tub 2 is rotatably disposed in the accommodating cavity 11, and the washing tub 2 rotates to drive the clothes or water to make a circular motion, thereby realizing the washing and drying functions. The washing tub 2 is spaced apart from the inner side wall of the accommodating cavity 11 of the housing 1, providing a rotating space for the washing tub 2, ensuring that the washing tub 2 can rotate normally, and avoiding collision between the washing tub 2 and the housing 1.

[0060] In this embodiment, if Figure 1 As shown, the detection element 3 is arranged on the radial inner wall of the accommodating cavity 11, and is used to monitor the distance between the washing tub 2 and the housing 1 in real time, that is, the distance between the washing tub 2 and the inner wall of the accommodating cavity 11. The detection element 3 is, for example, an infrared sensor, and the inner wall of the accommodating cavity 11 is, for example, provided with a first groove 111, and the infrared sensor is embedded in the first groove 111, which can not only locate and install the infrared sensor, but also play a protective role. Figure 4 As shown, the infrared sensor includes, for example, an infrared signal transmitting side 35 and an infrared signal receiving side 36. The infrared signal transmitting side 35 transmits a beam of infrared light. When the light is irradiated to the surface of the washing tub 2, it is reflected back and received by the infrared signal receiving side 36. By measuring the time difference from the emission to the reception of the infrared light, combined with the speed of light, the distance between the washing tub 2 and the infrared sensor can be calculated. The infrared sensor is flush with the inner wall of the accommodating cavity 11, that is, the distance between the washing tub 2 and the inner wall of the accommodating cavity 11 is calculated.

[0061] The infrared sensor may be one or more, and the plurality of infrared sensors may be arranged in sequence along the circumferential inner wall of the accommodating chamber 11. By way of example, in order to more comprehensively monitor the offset of the washing tub 2, four infrared sensors may be provided, namely, the first infrared sensor 31, the second infrared sensor 32, the third infrared sensor 33, and the fourth infrared sensor 34. Among them, the lowest point of the accommodating chamber 11 in the vertical direction is the first ranging point, the first infrared sensor 31 is arranged at the first ranging point, and the second infrared sensor 32, the third infrared sensor 33, and the fourth infrared sensor 34 are arranged in sequence in a counterclockwise direction, so that the second infrared sensor 32 is the second ranging point, located at the farthest point on the right side of the accommodating chamber 11 in the horizontal direction, the third infrared sensor 33 is the third ranging point, located at the highest point of the accommodating chamber 11 in the vertical direction, and the fourth infrared sensor 34 is the fourth ranging point, located at the farthest point on the left side of the accommodating chamber 11 in the horizontal direction. The distance is measured at four equally divided points of the circle, namely, the farthest point in the vertical direction and the farthest point in the horizontal direction, so that the measurement result is more referenceable, can fully reflect the deviation of the washing tub 2 during the rotation process, and is conducive to adjusting the position of the washing tub 2.

[0062] In this embodiment, if Figure 1 As shown, the control system of the washing machine adjusts the position of the washing tub 2 through the adjustment mechanism 4 according to the monitoring result of the detection element 3. For example, the data collected by the detection element 3 can be transmitted to the control system of the washing machine, and the control system processes and analyzes the data and sends instructions to the adjustment mechanism 4 to adjust the position of the washing tub 2 to achieve intelligent adjustment.

[0063] The adjustment mechanism 4 includes a first adjustment portion 41 and a second adjustment portion 42, wherein the first adjustment portion 41 is disposed on the radial inner wall of the accommodating cavity 11, and the second adjustment portion 42 is disposed on the radial outer wall of the washing tub 2. The first adjustment portion 41 and the second adjustment portion 42 are configured to interact with each other to drive the washing tub 2 to move relative to the accommodating cavity 11.

[0064] Exemplarily, the first adjustment part 41 includes, for example, a plurality of strong magnets 411, which are sequentially arranged along the circumferential inner wall of the accommodating cavity 11. The number of the strong magnets 411 may be consistent with the number of infrared sensors in the detection element 3, and the strong magnets 411 and the number of infrared sensors are arranged in a one-to-one correspondence, so as to adjust the position of the washing tub 2 with reference to the distance measurement point, thereby ensuring the accuracy of measurement and the precision of adjustment.

[0065] A plurality of strong magnets 411 are symmetrically arranged in pairs along the radial direction of the accommodating cavity 11, that is, symmetrical in the upper and lower directions and symmetrical in the left and right directions, so as to ensure that the strong magnets 411 are arranged one by one with the infrared sensors. Each strong magnet 411 has an N pole and an S pole, for example, the side facing the washing tub 2 is the N pole, and the side away from the washing tub 2 is the S pole. Among them, the inner side wall of the accommodating cavity 11 is provided with a plurality of second grooves 112, and the second grooves 112 are used to accommodate the corresponding strong magnets 411 to realize the positioning and installation of the strong magnets 411, and the strong magnets 411 can be bonded or clamped in the second grooves 112 to prevent the strong magnets 411 from being separated from the second grooves 112.

[0066] The second adjustment part 42 includes a plurality of electromagnets 421, which are arranged in sequence along the circumferential outer wall of the washing tub 2. The electromagnet 421, for example, includes an iron core 4211 and a coil 4212, and the coil 4212 is wound around the iron core 4211. When the power is on, the current passes through the coil 4212, so that the electromagnet 421 generates polarity, and the polarity of the electromagnet 421 is, for example, N pole and S pole. The outer wall of the washing tub 2 is provided with a plurality of third grooves 21, and the third grooves 21 are used to accommodate the corresponding electromagnets 421 to achieve the positioning and installation of the electromagnets 421. The electromagnets 421 can be bonded or clamped in the third grooves 21 to prevent the electromagnets 421 from being separated from the third grooves 21.

[0067] In the power-on state, the strong magnet 411 and the corresponding electromagnet 421 excite each other to generate a force, thereby pushing the washing tub 2 to move relative to the housing 1, adjusting the distance between the washing tub 2 and the accommodating cavity 11, avoiding the eccentricity of the washing tub 2, effectively suppressing polarization, and achieving the purpose of noise reduction. The force includes repulsion or attraction.

[0068] Multiple electromagnets 421 are symmetrically arranged in pairs along the radial direction of the washing tub 2. The number of electromagnets 421 can be consistent with the number of strong magnets 411. When the electromagnets 421 and the strong magnets 411 correspond one to one, they can be stimulated synchronously to adjust the washing tub 2 to achieve stability and balance during adjustment.

[0069] The polarity of the electromagnet 421 facing the strong magnet 411 is related to the direction of the current. The polarity of the electromagnet 421 is changed by controlling the direction of the current, thereby controlling the polarity between the strong magnet and the electromagnet to be the same or opposite, thereby stimulating repulsive force or attractive force.

[0070] By controlling the direction and magnitude of the current in the coil 4212, the polarity and strength of the electromagnet 421 can be flexibly adjusted, thereby generating an interaction force (repulsive force or attractive force) with the strong magnet 411 to push the washing tub 2 to adjust its position. Figure 5In the current direction shown, the polarity of the electromagnet 421 facing the strong magnet 411 is the N pole, and the polarity of the side away from the strong magnet 411 is the S pole, so that a repulsive force f is generated between the electromagnet 421 and the strong magnet 411 to push the washing tub 2 away from the distance measuring point. On the contrary, the polarity of the electromagnet 421 facing the strong magnet 411 is the S pole, and the polarity of the side away from the strong magnet 411 is the N pole, so that an attractive force is generated between the electromagnet 421 and the strong magnet 411.

[0071] When the washing tub 2 is adjusted, it may require a separate repulsive force, a separate suction force, or it may rely on the simultaneous existence of suction and repulsive force to achieve pushing, thus achieving flexibility in adjustment. In actual operation, when the washing tub 2 deviates during rotation, the detection element 3 will immediately capture this change and transmit the signal to the control system. The control system will calculate the spacing value between the washing tub 2 and the housing 1 at each distance measuring point based on the received signal, and determine whether repulsive force or suction force needs to be applied to adjust the position of the washing tub 2. For example, when it is detected that the spacing of the washing tub 2 at the lowest point (the first distance measuring point) is the smallest, the control system will instruct the electromagnet 421 located at this point to generate repulsive force to push the washing tub 2 upward; at the same time, the electromagnet 421 located at the highest point (the third distance measuring point) can use suction to assist in pulling the washing tub 2 upward. The combined effect of this suction and repulsive force not only improves the adjustment efficiency, but also reduces energy consumption.

[0072] When the coil current is gradually increased from 0, the infrared sensor synchronously measures the gap d between the washing tub 2 and the accommodating cavity 11. When the gaps d around are equal or the difference is close to a preset value, the corresponding coil current I1 is maintained at this time, and the negative eccentric force f1 generated at this time is equal to or close to F1, and the direction is opposite, and the vibration caused by the eccentricity is offset or weakened. When the amount of water decreases (dehydration), F decreases to F2, and the difference between the gap d around the infrared sensor is close to a preset value. At this time, the current coil I1 is gradually reduced until I2, and the negative eccentric force f2 and F2 generated are equal to or close in size, and the direction is opposite, and they are balanced again. The current I2 can be a very small current value to keep the power-on state at all times. When the current needs to be increased, it can be adjusted instantly, realizing dynamic adjustment, without the need to restart from 0 step by step. By identifying the size and direction of the eccentric force F that causes vibration, the negative eccentric force f is dynamically adjusted so that F+f tends to 0, effectively reducing polarization and the noise generated. From the source of vibration, the eccentric force is detected and negative eccentric force is applied to reduce eccentric vibration, suppress noise generation, and improve the home use experience.

[0073] Among them, Figure 3As shown, the distribution of clothing a and water (water level line b) at four measuring points is shown. The direction of the positive eccentric force F generated can be seen, and the repulsive force f or suction direction required for each measuring point can be determined.

[0074] The washing machine provided in this embodiment has significant advantages and effects in solving the problem of washing tub offset, reducing noise, and improving user experience. The infrared sensor monitors the distance between the washing tub 2 and the housing 1 in real time, and combines the interaction force of the strong magnet 411 and the electromagnet 421 to achieve precise adjustment of the position of the washing tub 2, effectively solving the problem of the offset of the washing tub 2 during rotation. By actively adjusting the position of the washing tub 2, the polarization and noise caused by the offset are suppressed, and the running stability and quietness of the washing machine are significantly improved. The flexible controllability of the polarity of the electromagnet 421 enables the adjustment mechanism 4 to flexibly choose to apply repulsion or suction according to the actual offset of the washing tub 2, ensuring stability and balance during the adjustment process. Through precise calculation and adjustment, unnecessary energy waste is avoided and the goal of energy saving and environmental protection is achieved.

[0075] The present application also provides a control method for a washing machine, which is applied to the washing machine in the above embodiment, and aims to effectively avoid eccentricity of the washing tub by accurately controlling the position of the washing tub, thereby suppressing polarization phenomenon and achieving the purpose of noise reduction.

[0076] In some exemplary embodiments, Figure 1-Figure 5 As shown, the washing machine includes a housing 1, a washing tub 2, a detection element 3 and an adjustment mechanism 4.

[0077] like Figure 6 As shown, the control method of the washing machine in this embodiment includes:

[0078] S100, obtaining the distance information between the washing tub and the housing.

[0079] In step S100, the washing machine first obtains the distance information between the washing tub 2 and the housing 1 in real time through the detection element 3. The distance information reflects the actual position state of the washing tub 2 during the rotation process and is the basic data for adjusting the position of the washing tub 2 subsequently.

[0080] Among them, multiple distance measuring points can be set to determine the distance information between the washing tub 2 and the housing 1. For example, a first distance measuring point, a second distance measuring point, a third distance measuring point and a fourth distance measuring point are set, the first distance measuring point is located at the lowest point of the accommodating chamber 11 in the vertical direction, the second distance measuring point is located at the farthest point on the right side of the accommodating chamber 11 in the horizontal direction, the third distance measuring point is located at the highest point of the accommodating chamber 11 in the vertical direction, and the fourth distance measuring point is located at the farthest point on the left side of the accommodating chamber 11 in the horizontal direction. The distance is measured at four equally divided points of the circumference, namely the farthest point in the vertical direction and the farthest point in the horizontal direction, so that the measurement result is more referenceable, can fully reflect the offset of the washing tub 2 during the rotation process, and is conducive to adjusting the position of the washing tub 2.

[0081] S110: Determine the offset of the washing tub based on the spacing information.

[0082] In step S110, after obtaining the spacing information, the control system of the washing machine processes and analyzes the data to determine the offset of the washing tub 2 relative to the ideal position.

[0083] For example, by comparing the spacing values ​​of each detection point (such as the first ranging point, the second ranging point, the third ranging point and the fourth ranging point), adjustments are made with the minimum spacing value as a reference. For example, when the spacing value of the first ranging point is the smallest, the initial spacing value of the position is determined, and then the offset of the washing tub 2 is determined, thereby realizing single-point monitoring, reducing the complexity of subsequent adjustments, and improving monitoring efficiency.

[0084] Alternatively, the first distance measuring point, the second distance measuring point, the third distance measuring point and the fourth distance measuring point are measured respectively to determine the spacing value of each distance measuring point, and the preset spacing value pre-stored in the control system is obtained, so that they are compared one by one, and then the offset of each position of the washing tub 2 is determined, thereby realizing multi-position monitoring and ensuring the accuracy and effectiveness of subsequent adjustments.

[0085] S120: driving the washing tub according to the offset to adjust the relative position between the washing tub and the housing.

[0086] In step S120, after determining the offset of the washing tub 2, the control system of the washing machine will adjust the position of the washing tub 2 according to the preset adjustment strategy through the adjustment mechanism 4 (such as the interaction between the strong magnet 411 and the electromagnet 421). Exemplarily, the control system will control the current direction and intensity of the electromagnet 421 according to the direction and size of the offset, thereby generating corresponding repulsive force or suction force to push the washing tub 2 to move to the ideal position.

[0087] For example, if it is detected that the distance between the washing tub 2 at the lowest point (the first distance measuring point) is the smallest, it indicates that the washing tub 2 may be offset downward. At this time, the control system will instruct the electromagnet 421 located at this point to generate a repulsive force with the corresponding strong magnet 411, pushing the washing tub 2 to move upward. The determination method is simpler and more intuitive, easy to implement and operate, and improves the adjustment efficiency.

[0088] Alternatively, if it is detected that the distance between the washing tub 2 at the lowest point (the first distance measuring point) is the smallest, it indicates that the washing tub 2 may be deflected downward. At this time, the control system will instruct the electromagnet 421 located at this point to generate a repulsive force with the corresponding strong magnet 411 to push the washing tub 2 upward, and the electromagnet 421 located at the highest point (the third distance measuring point) and the corresponding strong magnet 411 may generate an attractive force to assist in pulling the washing tub 2 upward. By monitoring the distance measuring points on both sides, the accuracy of the measurement results is improved, and the adjustment effect is further improved.

[0089] Alternatively, the first distance measuring point, the second distance measuring point, the third distance measuring point and the fourth distance measuring point are analyzed and processed respectively, and based on the offset of each distance measuring point, it is determined whether there is attraction or repulsion between the electromagnet 421 and the strong magnet 411. For example, if the difference between the current spacing value and the preset spacing value of the first distance measuring point is a positive number, attraction is required, and if the difference between the current spacing value and the preset spacing value of the first distance measuring point is a negative number, repulsion is required. By performing multi-point adjustment, the position of the washing tub 2 can be accurately adjusted to avoid eccentricity, thereby suppressing the occurrence of polarization.

[0090] The control method of the washing machine provided in this embodiment has significant advantages and effects in solving the eccentricity problem of the washing tub 2, reducing noise, and improving user experience. By acquiring the spacing information between the washing tub 2 and the shell 1 in real time, and determining the offset of the washing tub 2 based on this information, the precise control of the position of the washing tub 2 is achieved, and the occurrence of eccentricity is effectively avoided. By accurately adjusting the position of the washing tub 2, the polarization phenomenon caused by eccentricity is suppressed, thereby significantly reducing the operating noise of the washing machine and improving the user experience. The entire control process is completely automatically completed by the control system of the washing machine without manual intervention, which improves the automation and intelligence level of the washing machine. This method is applicable to washing machines of various models, as long as they have corresponding detection elements 3 and adjustment mechanisms 4, the precise adjustment of the position of the washing tub 2 can be achieved.

[0091] In some exemplary embodiments, Figure 1-Figure 5As shown, the washing machine has an intelligent automatic balancing function. The washing machine includes a solid housing 1, inside which is a rotatable washing tub 2. In order to detect the position of the washing tub 2, the washing machine installs a plurality of detection elements 3 between the housing 1 and the washing tub 2. These detection elements 3 can be non-contact displacement sensors, such as laser rangefinders or ultrasonic sensors, which can accurately measure the distance between the washing tub 2 and the housing 1. In addition, the washing machine is also equipped with a set of adjustment mechanisms 4, which are composed of electromagnets 421 and strong magnets 411, and can drive the washing tub 2 to make fine adjustments in the horizontal and / or vertical directions.

[0092] like Figure 7 As shown, the control method of the washing machine in this embodiment includes:

[0093] S200, obtaining the distance information between the washing tub and the housing.

[0094] In step S200, the washing machine first obtains the distance information between the washing tub 2 and the housing 1 in real time through the detection element 3. The distance information reflects the actual position state of the washing tub 2 during the rotation process and is the basic data for adjusting the position of the washing tub 2 subsequently.

[0095] Among them, multiple distance measuring points can be set to determine the distance information between the washing tub 2 and the housing 1. For example, a first distance measuring point, a second distance measuring point, a third distance measuring point and a fourth distance measuring point are set, the first distance measuring point is located at the lowest point of the accommodating chamber 11 in the vertical direction, the second distance measuring point is located at the farthest point on the right side of the accommodating chamber 11 in the horizontal direction, the third distance measuring point is located at the highest point of the accommodating chamber 11 in the vertical direction, and the fourth distance measuring point is located at the farthest point on the left side of the accommodating chamber 11 in the horizontal direction. The distance is measured at four equally divided points of the circumference, namely the farthest point in the vertical direction and the farthest point in the horizontal direction, so that the measurement result is more referenceable, can fully reflect the offset of the washing tub 2 during the rotation process, and is conducive to adjusting the position of the washing tub 2.

[0096] S210: Determine a plurality of first distance values ​​between the washing tub and the housing based on the distance information.

[0097] In step S210, based on the spacing information of each distance measuring point, the control system of the washing machine performs analysis and processing to determine the first spacing values ​​at different positions between the washing tub 2 and the housing 1. These measurement points are evenly distributed around the washing tub 2 to ensure the comprehensiveness and accuracy of the data. For example, the first spacing values ​​of the first distance measuring point, the second distance measuring point, the third distance measuring point, and the fourth distance measuring point are measured and recorded respectively.

[0098] S220: Determine the current axis position of the washing tub based on the multiple first spacing values.

[0099] In step S220, the control system of the washing machine processes these first spacing values ​​using an algorithm and determines the current axis position of the washing tub 2 through geometric calculation. The key to this step is accurate data processing and algorithm design to ensure the accuracy of the axis position. The axis position can be determined using three first spacing values ​​or four first spacing values, depending on the actual situation.

[0100] S230: Obtain a preset axis position of the washing tub.

[0101] In step S230, the washing machine reads the preset axis position of the washing tub 2 from the memory, which is the position where the washing tub 2 should be in an ideal state, that is, when the washing machine is unloaded or evenly loaded.

[0102] S240: Determine the offset of the washing tub based on the current axis position and the preset axis position.

[0103] In step S240, the washing machine compares the current axis position with the preset axis position, and calculates the offset of the washing tub 2, which includes the offset in the horizontal and / or vertical directions.

[0104] S250: driving the washing tub according to the offset to adjust the relative position between the washing tub and the housing.

[0105] In step S250, the washing machine drives the washing tub 2 to make corresponding adjustments through the adjustment mechanism 4 according to the calculated offset until the axis position of the washing tub 2 coincides with the preset axis position or reaches within the allowable error range, thereby achieving automatic balancing of the washing machine.

[0106] The control method of the washing machine in this embodiment can adapt to the laundry needs under different load conditions. Whether it is light load or heavy load, it can ensure the balance of the washing tub 2, so that the washing machine can perform at its best under various conditions. And by real-time monitoring and adjusting the position of the washing tub 2, it is ensured that it always maintains balance during the washing process, reducing the vibration and noise caused by imbalance, thereby improving the operating efficiency and stability of the washing machine. The automatic balancing function reduces the collision and friction between the washing tub 2 and the housing 1, prolongs the service life of the key components of the washing machine, and reduces the maintenance cost. The noise and vibration during the operation of the washing machine are reduced, providing users with a quieter and more comfortable washing environment. At the same time, the intelligent operation also simplifies the user's use process and improves the overall user satisfaction.

[0107] In some exemplary embodiments, Figure 1-Figure 5As shown, the washing machine includes a solid housing 1 for accommodating and protecting the various components inside the washing machine. The washing tub 2 is located inside the housing 1, for holding clothes and water, and completing the washing process by rotating and stirring. The detection element 3, such as a displacement sensor or a laser rangefinder, is installed between the housing 1 and the washing tub 2 for accurately measuring the distance between the two. The adjustment mechanism 4 includes a strong magnet 411 and an electromagnet 421, and the arrangement thereof has been described in detail in the aforementioned embodiment, and will not be repeated here. The adjustment mechanism 4 can drive the washing tub 2 to make a slight position adjustment.

[0108] like Figure 8 As shown, the control method of the washing machine in this embodiment includes:

[0109] S300, obtaining the distance information between the washing tub and the housing.

[0110] In step S300, after the washing machine is started, the distance information between the washing tub 2 and the housing 1 is obtained in real time through the detection element 3, and the distance information is recorded. This distance information reflects the actual position state of the washing tub 2 during the rotation process and is the basic data for subsequent adjustment of the position of the washing tub 2.

[0111] In order to achieve comprehensive and accurate measurement, multiple distance measuring points can be set to determine the distance information between the washing tub 2 and the housing 1. For example, a first distance measuring point, a second distance measuring point, a third distance measuring point and a fourth distance measuring point are set, the first distance measuring point is located at the lowest point of the accommodating chamber 11 in the vertical direction, the second distance measuring point is located at the farthest point on the right side of the accommodating chamber 11 in the horizontal direction, the third distance measuring point is located at the highest point of the accommodating chamber 11 in the vertical direction, and the fourth distance measuring point is located at the farthest point on the left side of the accommodating chamber 11 in the horizontal direction. These four distance measuring points represent the extreme positions of the washing tub 2 in the vertical and horizontal directions, respectively, and can fully reflect the offset of the washing tub 2 during the rotation process.

[0112] S310: Determine a plurality of second distance values ​​between the washing tub and the housing based on the distance information.

[0113] In step S310, according to the distance information obtained in step S300, the second distance value corresponding to each distance measuring point is calculated, and these values ​​represent the actual distance between the washing tub 2 and the housing 1 in the current state.

[0114] S320, obtaining a plurality of preset distance values ​​between the washing tub and the housing.

[0115] In step S320, preset spacing values ​​are read from the control system or storage unit of the washing machine. These preset spacing values ​​are determined based on factors such as the design parameters, washing effect, and safety requirements of the washing machine, and represent the desired spacing between the washing tub 2 and the shell 1 under ideal conditions.

[0116] S330: Determine the offset of the washing tub based on the second spacing value and the preset spacing value.

[0117] In step S330, the second spacing value of each distance measuring point is compared with the corresponding preset spacing value to calculate the offset in each direction of the washing tub 2. These offsets reflect the offset of the washing tub 2 relative to the ideal position.

[0118] S340: driving the washing tub according to the offset to adjust the relative position between the washing tub and the housing.

[0119] In step S340, the position of the washing tub 2 is adjusted by the strong magnet 411 and the electromagnet 421 in the adjustment mechanism 4 according to the offset calculated in step S330. If the offset indicates that the washing tub 2 is offset too much in a certain direction, the adjustment mechanism 4 will drive the washing tub 2 to move in the opposite direction to reduce or eliminate the offset. In this way, it can be ensured that the washing tub 2 always maintains an ideal spacing with the housing 1 during the rotation process, thereby improving the washing effect, reducing vibration and noise, and extending the service life of the washing machine.

[0120] The adjustment strategy can be flexibly set, for example, based on two second spacing values ​​to simplify the complexity of the adjustment strategy. Alternatively, the adjustment can be based on four second spacing values ​​to improve the accuracy of the adjustment strategy and further reduce vibration and noise.

[0121] The control method of the washing machine in this embodiment achieves improved washing effect, reduced vibration and noise, extended service life of the washing machine, and enhanced safety and stability by accurately measuring and adjusting the distance between the washing tub 2 and the housing 1. By accurately measuring and adjusting the distance between the washing tub 2 and the housing 1, it can be ensured that the clothes are evenly stirred and cleaned during the washing process, thereby improving the washing effect.

[0122] When the distance between the washing tub 2 and the housing 1 is kept within the ideal range, the vibration and noise of the washing machine will be greatly reduced, providing users with a more comfortable use experience. By regularly adjusting the position of the washing tub 2, problems such as mechanical wear and loose parts caused by long-term operation can be avoided, thereby extending the service life of the washing machine. By accurately controlling the position of the washing tub 2, safety hazards caused by excessive displacement of the washing tub 2, such as collision with the housing 1, damage to parts or personal injury, can be prevented. At the same time, a stable position of the washing tub 2 also helps to improve the stability of the washing machine during operation.

[0123] The present application also provides a control method for a washing machine, which is applied to the washing machine in the above embodiment, and aims to effectively avoid eccentricity of the washing tub by accurately controlling the position of the washing tub, thereby suppressing polarization phenomenon and achieving the purpose of noise reduction.

[0124] In some exemplary embodiments, a control method for a washing machine is applied to a washing machine including a housing 1, a washing tub 2, a detection element 3 and an adjustment mechanism 4, such as Figure 1-Figure 5 The adjusting mechanism 4 includes a strong magnet 411 and an electromagnet 421. By adjusting the current value of the electromagnet 421, the interaction force between the electromagnet 421 and the strong magnet 411 can be changed, thereby achieving precise control of the position of the washing tub 2.

[0125] like Fig. 9 As shown, the control method of the washing machine in this embodiment includes:

[0126] S400, obtaining the distance information between the washing tub and the housing.

[0127] In step S400, after the washing machine is started, the distance information between the washing tub 2 and the housing 1 is obtained in real time through the detection element 3, and the distance information is recorded. This distance information reflects the actual position state of the washing tub 2 during the rotation process and is the basic data for subsequent adjustment of the position of the washing tub 2.

[0128] In order to achieve comprehensive and accurate measurement, multiple distance measuring points can be set to determine the distance information between the washing tub 2 and the housing 1. For example, a first distance measuring point, a second distance measuring point, a third distance measuring point and a fourth distance measuring point are set, the first distance measuring point is located at the lowest point of the accommodating chamber 11 in the vertical direction, the second distance measuring point is located at the farthest point on the right side of the accommodating chamber 11 in the horizontal direction, the third distance measuring point is located at the highest point of the accommodating chamber 11 in the vertical direction, and the fourth distance measuring point is located at the farthest point on the left side of the accommodating chamber 11 in the horizontal direction. These four distance measuring points represent the extreme positions of the washing tub 2 in the vertical and horizontal directions, respectively, and can fully reflect the offset of the washing tub 2 during the rotation process.

[0129] S410: Determine the offset of the washing tub based on the spacing information.

[0130] In step S410, after obtaining the spacing information, the control system of the washing machine processes and analyzes the data. The control system can determine the offset of the washing tub 2 relative to the ideal position by comparing the spacing values ​​of each detection point.

[0131] For example, by comparing the spacing values ​​of various detection points (such as the first distance measurement point, the second distance measurement point, the third distance measurement point and the fourth distance measurement point), the adjustment is made with the minimum spacing value as a reference. For example, when the spacing value of the first distance measurement point is the smallest, the initial spacing value of the position is determined, and the offset of the washing tub 2 is calculated accordingly. This method realizes single-point monitoring, reduces the complexity of subsequent adjustments, and improves monitoring efficiency.

[0132] Alternatively, the first distance measuring point, the second distance measuring point, the third distance measuring point and the fourth distance measuring point are measured respectively to determine the spacing value of each distance measuring point, and compared with the preset spacing value pre-stored in the control system, so as to determine the offset of the washing tub 2 at each position. This method realizes multi-position monitoring and ensures the accuracy and effectiveness of subsequent adjustments.

[0133] S420, determining the polarity between the strong magnet and the electromagnet according to the offset, and adjusting the current value of the strong magnet.

[0134] In step S420, based on the offset determined in step S410, the control system calculates the current value that needs to be applied to the electromagnet 421 to generate sufficient driving force to adjust the position of the washing tub 2. At the same time, the control system also determines the polarity between the strong magnet 411 and the electromagnet 421 to ensure that the direction of the driving force is consistent with the direction in which the washing tub 2 needs to move.

[0135] S430, through the current value of the strong magnet, the driving force between the strong magnet and the electromagnet is stimulated to drive the washing tub to adjust the relative position between the washing tub and the shell.

[0136] In step S430, the electromagnet 421 generates a magnetic field under the action of the current, and generates an interaction force with the electromagnet 411, thereby driving the washing tub 2 to adjust its position. The offset is proportional to the current value of the electromagnet 421, that is, the larger the offset, the larger the current value to be applied. By accurately controlling the current value, the position of the washing tub 2 can be accurately adjusted, thereby effectively avoiding the eccentricity of the washing tub 2, suppressing the polarization phenomenon, and achieving the purpose of noise reduction.

[0137] The control method of the washing machine in this embodiment effectively avoids the eccentricity of the washing tub 2, suppresses the polarization phenomenon, achieves the purpose of noise reduction, and improves the overall performance and user experience of the washing machine by accurately controlling the position of the washing tub 2. By obtaining the spacing information between the washing tub 2 and the housing 1 in real time, and calculating the offset based on it, and then accurately controlling the current value of the electromagnet 421, the position of the washing tub 2 can be accurately adjusted to effectively avoid the eccentricity of the washing tub 2. Accurately controlling the position of the washing tub 2 can significantly reduce the polarization phenomenon of the washing machine during operation, thereby reducing vibration and noise, and improving the stability and service life of the washing machine. By accurately controlling the position of the washing tub 2, the friction and collision between the washing tub 2 and the housing 1 during rotation can be reduced, thereby reducing noise and providing users with a more comfortable use experience. Accurately controlling the position of the washing tub 2 can also improve the washing effect, ensure that the clothes are evenly stirred and cleaned during the washing process, and reduce energy consumption and wear during the washing process.

[0138] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0139] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0140] The foregoing is merely a specific embodiment of the present invention, which enables those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A washing machine, characterized in that: include: A housing having a receiving cavity; A washing tub rotatably disposed in the accommodating cavity; A detection element is disposed on a radial inner side wall of the accommodating cavity, and the detection element is configured to detect a distance between the washing tub and the housing; as well as The adjustment mechanism includes a first adjustment part and a second adjustment part, wherein the first adjustment part is arranged on the radial inner wall of the accommodating cavity, and the second adjustment part is arranged on the radial outer wall of the washing tub; wherein the first adjustment part and the second adjustment part are arranged to interact with each other to drive the washing tub to move relative to the accommodating cavity.

2. The washing machine according to claim 1, characterized in that: The first adjusting part includes a plurality of strong magnets, and the plurality of strong magnets are sequentially arranged along the circumferential inner wall of the accommodating cavity; the second adjusting part includes a plurality of electromagnets, and the plurality of electromagnets are sequentially arranged along the circumferential outer wall of the washing tub; When powered on, the strong magnet and the corresponding electromagnet excite each other to generate a force, wherein the force includes a repulsive force or an attractive force.

3. The washing machine according to claim 2, characterized in that: The polarities of the strong magnet and the electromagnet are the same or opposite to each other, so as to stimulate the repulsive force or the attractive force.

4. The washing machine according to claim 2, characterized in that: The plurality of strong magnets are symmetrically arranged in pairs along the radial direction of the accommodating cavity; the plurality of electromagnets are symmetrically arranged in pairs along the radial direction of the washing tub.

5. The washing machine according to claim 1, characterized in that: The detection element includes a plurality of infrared sensors, and the plurality of infrared sensors are arranged in sequence along the circumferential inner side wall of the accommodating cavity.

6. A method for controlling a washing machine, characterized in that: Applied to the washing machine according to any one of claims 1 to 5, the control method of the washing machine comprises: Obtaining the distance information between the washing tub and the housing; Based on the spacing information, determining an offset of the washing tub; According to the offset, the washing tub is driven to adjust the relative position between the washing tub and the housing.

7. The control method of the washing machine according to claim 6, characterized in that: The step of determining the offset of the washing tub based on the spacing information includes: Based on the spacing information, determining a plurality of first spacing values ​​between the washing tub and the housing; Determining a current axis position of the washing tub based on the plurality of first spacing values; Obtaining a preset axis position of the washing tub; Based on the current axis position and the preset axis position, the offset of the washing tub is determined.

8. The control method of the washing machine according to claim 6, characterized in that: The step of determining the offset of the washing tub based on the spacing information includes: Based on the spacing information, determining a plurality of second spacing values ​​between the washing tub and the housing; Acquire a plurality of preset spacing values ​​between the washing tub and the housing; Based on the second spacing value and the preset spacing value, an offset of the washing tub is determined.

9. The control method of the washing machine according to claim 6, characterized in that: The obtaining of the distance information between the washing tub and the housing includes: A plurality of distance measuring points are set to determine the distance information between the washing tub and the housing.

10. The control method of the washing machine according to claim 6, characterized in that: The step of driving the washing tub according to the offset to adjust the relative position between the washing tub and the housing comprises: According to the offset, the polarity between the strong magnet and the electromagnet is determined, and the current value of the strong magnet is adjusted; The current value of the strong magnet stimulates the driving force between the strong magnet and the electromagnet to drive the washing tub to adjust the relative position between the washing tub and the shell.

11. The control method of the washing machine according to claim 10, characterized in that: The offset is proportional to the current value of the strong magnet.

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