A washing machine

Abstract

Embodiments of the present application disclose a washing machine. The washing machine comprises a drum, a horizontal measuring device configured to measure eccentricity data of the drum, a suspension spring configured to adjust vibration generated during operation of the washing machine, and a controller configured to: acquire a water content of laundry to be dewatered in the drum, and acquire the eccentricity data of the drum measured by the horizontal measuring device; determine a target dewatering program based on the eccentricity data of the drum and the water content of the laundry to be dewatered; control the washing machine to execute the target dewatering program, and adjust a real-time displacement of the suspension spring based on a common constraint of a gravity center position of the laundry to be dewatered and a target position of the suspension spring during execution of the target dewatering program, wherein the target position of the suspension spring is a position of the suspension spring when the target dewatering program is completed. On the one hand, the vibration generated during the dewatering process is buffered, and the vibration of the washing machine is reduced. On the other hand, the drum is self-balanced, and noise caused by the drum impacting the cabinet due to imbalance can be avoided.

Description

Technical Field

[0001] This application relates to the field of smart home appliance technology, specifically to a washing machine capable of regulating and buffering vibrations generated during the washing machine's operation. Background Technology

[0002] With the continuous development of technology and users' pursuit of a better and more convenient life, washing machines have emerged, solving the tiring housework of washing clothes in people's daily lives, freeing people's hands, and thus washing machines have entered thousands of households.

[0003] Currently, washing machines on the market use a high-speed rotation of the drum after the spin cycle is complete, utilizing centrifugal force to remove excess water. However, after washing, clothes tend to clump together to one side, creating an imbalance. During high-speed spin-drying, this results in significant vibration and noise, causing the inner drum to collide with the outer casing of the washing machine, generating unwanted noise and severely impacting the user experience. Summary of the Invention

[0004] To address the aforementioned technical problems, embodiments of this application provide a washing machine.

[0005] The first embodiment of this application provides a washing machine, the washing machine including: a drum; a horizontal measuring device for measuring the eccentricity data of the drum; a suspension spring for adjusting and buffering vibrations generated during the operation of the washing machine; and a controller configured to perform the following steps: acquiring the moisture content of the clothes to be spun in the drum, and acquiring the eccentricity data of the drum measured by the horizontal measuring device; determining a target spin-drying program based on the eccentricity data of the drum and the moisture content of the clothes to be spun; controlling the washing machine to execute the target spin-drying program, and adjusting the real-time displacement of the suspension spring based on the common constraint of the center of gravity position of the clothes to be spun and the target position of the suspension spring during the execution of the target spin-drying program, wherein the target position of the suspension spring is the position of the suspension spring when the target spin-drying program is completed.

[0006] In the first embodiment provided in this application, on the one hand, the target spin-drying program determined based on the eccentricity data of the washing drum ensures that excessive vibration and eccentricity are not caused during the spin-drying process. The washing machine is controlled to execute the target spin-drying program, and during the execution of the target spin-drying program, the real-time displacement of the suspension spring is adjusted based on the combined constraints of the center of gravity position of the clothes to be spun and the target position of the suspension spring. The target position of the suspension spring is the position of the suspension spring when the target spin-drying program is completed. On the other hand, by adjusting the real-time displacement of the suspension spring during the execution of the target spin-drying program, the washing machine drum remains in a balanced state during the spin-drying process, thus avoiding noise caused by the unbalanced drum impacting the machine casing.

[0007] In the washing machine provided according to the second embodiment of this application, the controller is further configured to perform the following steps: obtaining the center of gravity position of the clothes to be spun; calculating the target position of the suspension spring after the target spin-drying program is completed based on the center of gravity position of the clothes to be spun, the moisture content of the clothes to be spun, and the weight of the drum; establishing a real-time displacement model of the suspension spring based on the target position and the center of gravity position of the clothes to be spun, so as to determine the real-time displacement for adjusting the suspension spring based on the real-time displacement model during the execution of the target spin-drying program.

[0008] In the second embodiment of this application, the center of gravity position of the garment to be dehydrated is obtained. Based on the center of gravity position, moisture content, and weight of the garment, the target position of the suspension spring is calculated when the target dehydration process is completed. A real-time displacement model of the suspension spring is established based on the target position and the center of gravity position of the garment. During the execution of the target dehydration process, the real-time displacement for adjusting the suspension spring is determined based on the real-time displacement model. This yields a real-time displacement adjustment strategy for the suspension spring to buffer vibrations generated during the dehydration process, thereby achieving real-time buffering of vibrations generated during dehydration.

[0009] According to the washing machine provided in the third embodiment of this application, the controller is further configured to perform the following steps: obtaining the weight of the drum and the first position of the suspension spring, wherein the first position is the position of the suspension spring when the weight of the drum is measured; obtaining the second position of the suspension spring and obtaining the weight of the clothes to be spun, wherein the second position information is the position of the suspension spring when the target spin-drying program is started; establishing a center of gravity position model of the clothes to be spun based on the weight of the drum, the first position of the suspension spring, the weight of the clothes to be spun, and the second position of the suspension spring; and determining the center of gravity position of the clothes to be spun based on the center of gravity position model of the clothes to be spun.

[0010] In the third embodiment of this application, by obtaining the weight of the washing machine drum and the first position of the suspension spring when measuring the weight of the drum, the weight of the clothes to be spun and the position of the suspension spring when the target spin-drying program is started are obtained. Based on the weight of the drum, the first position of the suspension spring, the weight of the clothes to be spun and the second position of the suspension spring, a center of gravity model of the clothes to be spun is established. The center of gravity of the clothes to be spun is determined according to the center of gravity model of the clothes to be spun, thereby accurately calculating the center of gravity model of the clothes to be spun during the spin-drying process of the washing machine. This allows the position of the suspension spring to be adjusted to buffer the vibration generated by the washing machine, so that the washing machine is in a horizontal state.

[0011] In the washing machine provided according to the fourth embodiment of this application, the controller is further configured to perform the following steps: when the washing machine is started, the controller measures whether the drum is in a horizontal state by means of the horizontal measuring device; if the measurement result indicates that the drum is not in a horizontal state, the controller controls the adjustment of the position of the suspension spring to the first position so that the drum is in a horizontal state.

[0012] In the washing machine provided in the fourth embodiment of this application, when the washing machine is started, a level measuring device determines whether the drum is in a horizontal state. If the washing machine is not in a horizontal state, the suspension spring is adjusted to a first position so that the drum is in a horizontal state, thereby automatically adjusting the position of the washing machine so that the washing machine is in a horizontal state when it is started.

[0013] In the washing machine provided according to the fifth embodiment of this application, the controller is further configured to perform the following steps: before starting the target spin-drying program, measuring whether the drum is in a horizontal state by means of the level measuring device; if the measurement result indicates that the drum is not in a horizontal state, controlling the adjustment of the position of the suspension spring to the second position so that the drum is in a horizontal state.

[0014] In the fifth embodiment provided in this application, before starting the target spin-drying program, a level measuring device is used to determine whether the drum is in a horizontal state. If the drum is not in a horizontal state, the position of the adjusting spring is controlled to the second position so that the drum is in a horizontal state. This avoids vibration caused by the drum not being horizontal during the spin-drying process and improves the problem of noise caused by collision due to excessive eccentricity of clothes in the washing machine.

[0015] According to the washing machine provided in the sixth embodiment of this application, the controller is further configured to perform the following steps: obtaining the weight of the clothes to be washed; establishing a target position model of the suspension spring based on the weight of the drum, the first position of the suspension spring, the weight of the clothes to be washed, the moisture content of the clothes to be spun and the center of gravity position of the clothes to be spun; and determining the target position of the suspension spring based on the target position model of the suspension spring.

[0016] In the sixth embodiment provided in this application, by obtaining the weight of the clothes to be washed, and based on the weight of the clothes drum, the first position of the suspension spring, the weight of the clothes to be washed, and the center of gravity position of the clothes to be spun, a target position model of the suspension spring is established. The target position of the suspension spring is determined based on the target position model, thereby accurately calculating the target position of the suspension spring after spin-drying.

[0017] According to the seventh embodiment of this application, the washing machine further includes a speed reducer, and the controller is further configured to perform the following steps: determining the real-time moving speed of the suspension spring based on the real-time displacement model of the suspension spring; and controlling the speed reducer to adjust the real-time displacement of the suspension spring according to the real-time moving speed.

[0018] In the seventh embodiment of this application, the washing machine also includes a speed reducer, and the controller is further configured to perform: determining the real-time moving speed of the suspension spring based on the real-time displacement model of the suspension spring, and controlling the speed reducer to adjust the real-time displacement of the suspension spring according to the real-time moving speed, which can realize the buffering of the vibration generated by the clothes drum during the spin-drying process by adjusting the position of the suspension spring, thereby reducing the vibration generated by the clothes drum during the spin-drying process.

[0019] According to the eighth embodiment of this application, the washing machine further includes a balance screw, a clutch, and a motor; the balance screw is connected to the suspension spring, the clutch and the reducer are respectively connected to the motor through a transmission shaft, and the clutch and the reducer are also respectively connected to the balance screw through a chain to control the balance screw to adjust the position of the suspension spring.

[0020] In the eighth embodiment provided in this application, the washing machine includes a balance screw, a clutch, and a motor. The balance screw is connected to the suspension spring. The clutch and the reducer are respectively connected to the motor via drive shafts. The clutch and the reducer are also respectively connected to the balance screw via chains to control the balance screw to adjust the position of the suspension spring. This allows the position of the suspension spring to be adjusted in real time during the washing machine's spin-drying process to buffer vibrations generated during spin-drying and improve spin-drying efficiency.

[0021] In the washing machine provided according to the ninth embodiment of this application, the controller is further configured to perform the following steps: determining the operating parameters of the motor based on the real-time moving speed of the suspension spring; controlling the operating parameters of the motor to adjust the position of the suspension spring by driving the lead screw through the motor.

[0022] In the ninth embodiment provided in this application, the controller controls the motor to work, so that the motor drives the lead screw connected to the suspension spring to work, so that the lead screw drives the position change of the suspension spring, thereby buffering the vibration generated in the clothes tub during the dehydration process, reducing the vibration generated during the dehydration process, and improving the dehydration efficiency.

[0023] In the washing machine provided according to the tenth embodiment of this application, the controller is further configured to perform the following steps: determining the highest spin speed that matches the eccentric data based on the mapping relationship between the eccentric data and the spin speed; determining a target spin program based on the highest spin speed that matches the eccentric data, wherein the highest spin speed in the target spin program does not exceed the highest spin speed that matches the eccentric data.

[0024] In the tenth embodiment provided in this application, the highest dehydration speed matching the eccentricity data is determined by the mapping relationship between the eccentricity data and the dehydration speed. The target dehydration program is determined based on the highest dehydration speed matching the eccentricity data. The highest dehydration speed in the target dehydration program does not exceed the highest dehydration speed matching the eccentricity data, thereby ensuring that the eccentricity of the clothes tube will not be too large due to the excessively high dehydration speed during the dehydration process, which would cause the clothes tube to collide with the outer shell and generate noise during the dehydration process.

[0025] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0026] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort. In the drawings:

[0027] Figure 1 This is a partial structural schematic diagram of a washing machine shown in an exemplary embodiment of this application;

[0028] Figure 2 This is a partial structural schematic diagram of a washing machine shown in another exemplary embodiment of this application;

[0029] Figure 3 This is an exemplary embodiment of the present application illustrating the corresponding dehydration speed curve in the dehydration process;

[0030] Figure 4 This is an exemplary embodiment illustrating a graph of the real-time displacement of the suspension spring during the dehydration process;

[0031] Figure 5 This is a partial structural schematic diagram of a washing machine shown in an exemplary embodiment of this application;

[0032] Figure 6 This is a schematic diagram of the transmission structure inside a washing machine shown in an exemplary embodiment of this application;

[0033] Figure 7 This is a flowchart illustrating the control of a washing machine in an exemplary application scenario of this application. Detailed Implementation

[0034] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0035] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities can be implemented in software, in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontroller devices.

[0036] The flowcharts shown in the accompanying drawings are merely illustrative and do not necessarily include all content and operations / steps, nor do they necessarily have to be performed in the described order. For example, some operations / steps can be broken down, while others can be combined or partially combined; therefore, the actual execution order may change depending on the specific circumstances.

[0037] In this application, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0038] With the continuous development of technology and users' pursuit of a better and more convenient life, washing machines have emerged, solving the tiring household chore of washing clothes and freeing people's hands. Therefore, washing machines have entered thousands of households. Currently, washing machines on the market use a high-speed rotation of the drum after the spin-drying process is complete, utilizing centrifugal force for dehydration. After washing, the clothes tend to clump together to one side, creating an imbalance. During high-speed spin-drying, the vibration is significant, and the noise is loud, causing the inner drum to collide with the outer casing of the washing machine, resulting in excessive noise and seriously affecting the user experience.

[0039] To address the aforementioned technical problems, embodiments of this application provide a washing machine capable of buffering vibrations generated during the spin-drying process by adjusting the position of the suspension spring. This reduces vibrations and noise during the spin-drying process, and improves the problem of clothes easily clumping to one side and generating excessive vibration during high-speed spin-drying. Furthermore, it improves the quality of dehydration, resulting in better dehydration and a better user experience. Moreover, this application can be based on common product forms such as top-loading washing machines and front-loading washing machines, or it can be any device integrating washing functions; this application does not impose any limitations on the product form of the washing machine.

[0040] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of a washing machine shown in an exemplary embodiment of this application, as follows: Figure 1 As shown, the washing machine includes a drum 110, a level measuring device 120, a suspension spring 130, and a controller 140. The drum 110 is used to carry clothes. The level measuring device 120 measures the eccentricity data of the drum 110 and reports this data to the controller 140. The suspension spring 130 is used to adjust and buffer vibrations generated during the washing machine's operation. The controller 140 determines the target spin-drying program based on the eccentricity data of the drum 110, thereby controlling the washing machine to execute the target spin-drying program.

[0041] Specifically, such as Figure 2 As shown, the washing machine may include one or more of the following: housing 101, drum 110, balance screw 102, reducer 103, level measuring device 120, and suspension spring 130. The balance screw 102 is connected to the drum 110 and the housing 101 respectively, so that the position of the suspension spring 130 can be adjusted by rotating the balance screw 102. The reducer 103 is used to adjust the rotation speed of the balance screw 102 so that the drum 110 is in a horizontal state.

[0042] In some feasible embodiments, the balance screw 102 is respectively disposed on the housing 101 and the clothes drum 110, and the suspension spring 130 is respectively connected to the balance screw on the housing 101 and the balance screw on the clothes drum 110 to adjust and buffer the vibration generated by the clothes drum 110 during the dehydration process, so that the clothes drum 130 is in a horizontal state.

[0043] In some feasible embodiments, a level measuring device 120 is disposed on the outer tube of the garment tube 110 to measure the eccentricity of the outer tube of the garment tube 110, thereby determining the eccentricity data of the garment tube based on the eccentricity of the outer tube.

[0044] The embodiments of this application will be described in further detail below with reference to the accompanying drawings in the embodiments of this specification.

[0045] The controller 140 is specifically installed on a circuit board inside the washing machine's casing, and it is equipped with a shock-absorbing control circuit composed of electronic components such as a memory. The controller 140 controls the washing machine to achieve the shock-absorbing and buffering function by executing control methods stored in the memory. Specifically, the controller 140 is configured to execute the following steps S310 to S330, detailed below:

[0046] Step S310: Obtain the moisture content of the clothes to be dehydrated inside the clothes drum, and obtain the eccentricity data of the clothes drum measured by the horizontal measuring device.

[0047] First, it should be noted that the moisture content of the clothes to be spun refers to the percentage of the weight of water contained in the clothes to be spun in the washing machine drum to the actual weight of the clothes. In this embodiment, the washing machine also includes a weighing device for measuring the weight of the clothes. The weight of the clothes to be spun is obtained by weighing them using the weighing device, and the weight of the clothes to be washed is obtained by weighing them before starting the washing program (or when the clothes are put into the drum). Therefore, the moisture content of the clothes to be spun can be calculated from the weight of the clothes to be spun and the weight of the clothes to be washed.

[0048] Furthermore, in some feasible embodiments, the moisture content of the garments to be dehydrated can be determined by the material information of the garments. Specifically, different garment materials have different absorbencies, and the moisture content of the garments to be dehydrated can be determined by obtaining the material information of the garments.

[0049] In step S310, while determining the moisture content of the clothes to be spun, the offset data of the washing machine drum can be measured by a horizontal measuring device installed on the washing machine drum.

[0050] Step S320: Determine the target dehydration program based on the eccentricity data of the garment tub and the moisture content of the garment to be dehydrated.

[0051] Specifically, due to the eccentricity of the drum, the washing machine will drain all the water from the drum after washing clothes. During the spin-drying process, the washing machine will pass through two to three resonance zones. The higher the eccentricity of the washing machine and the greater the tilt of the clothes in the drum to one side when passing through the resonance zone, the greater the vibration in the resonance zone. When the vibration reaches a certain value, the drum will collide with the outer shell of the washing machine, causing the washing machine to move or generate noise. After draining, the washing drum will first rotate at a low speed, and the eccentricity of the washing machine will be measured during this time. When the eccentricity is greater than a preset threshold, it is determined that the washing machine cannot perform high-speed spin-drying. At this time, the washing drum will stop rotating and refill with water. After refilling with water, the washing blades will rotate, and the washing blades will evenly spread the spun clothes with water. The washing machine will drain the water again, rotate the washing drum at a low speed, and measure the eccentricity again. When the eccentricity is less than the preset threshold, it means that the washed clothes have been evenly distributed in the washing drum, and the spin-drying will not cause the aforementioned collision noise problem. At this time, the washing machine will be controlled to perform high-speed spin-drying. However, this control method of the washing machine will cycle through water replenishment and drainage multiple times until the eccentricity drops to a certain value before starting high-speed spin-drying. This will result in high water consumption and longer washing time.

[0052] To avoid collision noise during the spin-drying process, the corresponding spin-drying speed is determined based on the eccentricity data of the washing drum. This ensures that the clothes can be properly spun at high speed during the spin-drying process, which can improve the degree of water eccentricity reduction, reduce the resistance when the washing wing rotates the clothes, and improve the efficiency of clothes dispersion.

[0053] Step S330: Control the washing machine to execute the target spin-drying program, and during the execution of the target spin-drying program, adjust the real-time displacement of the suspension spring based on the common constraint of the center of gravity position of the clothes to be spun and the target position of the suspension spring. The target position of the suspension spring is the position of the suspension spring when the target spin-drying program is completed.

[0054] Specifically, after determining the corresponding target spin-drying program based on the eccentricity data of the washing drum, the washing machine is controlled to execute the target spin-drying program. During the spin-drying process, due to the change in the moisture content of the clothes to be spun inside the drum, the center of gravity of the clothes to be spun will also change accordingly. Furthermore, in some feasible embodiments, based on the specific numerical values ​​and correspondence between the target spin-drying program and the volume of water retained, the target position of the suspension spring at the completion of the target spin-drying program can be determined. Therefore, the displacement of the suspension spring is from the center of gravity position of the clothes to be spun to the target position at the completion of the target spin-drying program. Thus, during the execution of the target spin-drying program, the real-time displacement of the suspension spring is adjusted under the constraints of the center of gravity position of the clothes to be spun and the target position at the completion of the target spin-drying program.

[0055] In this embodiment, by acquiring the moisture content of the clothes to be dehydrated inside the clothes drum and the eccentricity data of the clothes drum measured by the horizontal measuring device, the target dehydration program is determined. This achieves a match between the highest dehydration speed in the target dehydration program and the eccentricity of the clothes to be dehydrated, enabling the clothes inside the clothes drum to be shaken apart. Then, during the execution of the target dehydration program, the real-time displacement of the suspension spring is adjusted based on the combined constraints of the center of gravity position of the clothes to be dehydrated and the target position of the suspension spring. This adjustment of the suspension spring position adjusts and buffers the vibration generated by the clothes drum during high-speed dehydration, thereby improving the dehydration efficiency and enhancing the user experience.

[0056] Furthermore, based on the above embodiments, in one exemplary embodiment provided in this application, the controller 140 is further configured to perform the following steps S410 to S430, which are described in detail below:

[0057] Step S410: Obtain the center of gravity of the clothes to be dehydrated.

[0058] Specifically, before starting the target spin cycle, the center of gravity of the clothes to be spun inside the washing machine drum can be obtained. This can be achieved using a level measuring device.

[0059] Step S420: Based on the center of gravity of the clothes to be dehydrated, the moisture content of the clothes to be dehydrated, and the weight of the clothes, calculate the target position of the suspension spring after the target dehydration process is completed.

[0060] In addition, the controller's memory also stores the weight of the washing machine drum (i.e., the net weight of the drum when no clothes are placed on it). Therefore, the target position of the washing machine's hanging spring after the target spin cycle is completed can be calculated using the center of gravity position of the clothes to be spun, the moisture content of the clothes to be spun, and the weight of the drum obtained in step S410 above.

[0061] Specifically, in some feasible embodiments, an equation is established between the center of gravity position of the clothes to be dehydrated, the moisture content of the clothes to be dehydrated, and the target position of the washing machine suspension spring after the target dehydration program is completed, based on the weight of the clothes drum and the target position of the washing machine suspension spring. This equation is used to derive the relationship between the target position after the target dehydration program is completed and the center of gravity position and moisture content of the clothes to be dehydrated.

[0062] Step S430: Establish a real-time displacement model of the suspension spring based on the target position and the center of gravity position of the clothes to be dehydrated, so as to determine the real-time displacement for adjusting the suspension spring based on the real-time displacement model during the execution of the target dehydration program.

[0063] Specifically, as can be seen from the above embodiments, during the spin-drying process of the washing machine, the suspension spring is adjusted from the center of gravity position of the clothes to be spun to the target position of the suspension spring when the target spin-drying program is completed. Therefore, the real-time displacement model of the suspension spring during the spin-drying process can be established by using the target position and the center of gravity position of the clothes to be spun, and the real-time displacement of the suspension spring can be adjusted based on the real-time displacement model of the suspension spring.

[0064] In this embodiment, an equation is established between the target position of the suspension spring after the target dehydration program is completed and the center of gravity of the clothes to be dehydrated, the moisture content of the clothes to be dehydrated, and the weight of the drum. Then, a real-time displacement model of the suspension spring is established by further calculating the target position and the center of gravity of the clothes to be dehydrated. This allows for real-time adjustment of the suspension spring's displacement during the execution of the target dehydration program, thereby adjusting and buffering the vibrations generated during the dehydration process, preventing the drum from colliding with the inner wall of the washing machine and causing noise, and improving the dehydration efficiency.

[0065] Furthermore, based on the above embodiments, in one exemplary embodiment provided in this application, the controller 140 inside the washing machine is further configured to execute steps S510 to S540, as detailed below:

[0066] Step S510: Obtain the weight of the garment tube and the first position of the suspension spring. The first position is the position of the suspension spring when the weight of the garment tube is measured.

[0067] Specifically, when the washing machine is started, the weight of the washing machine drum (i.e., net weight) is automatically acquired, and the first position of the washing machine's suspension spring is also acquired. This first position is the position of the suspension spring when the weight of the drum is measured. In some feasible embodiments, the weight of the washing machine drum and the position of the suspension spring when the drum is empty are stored in the memory corresponding to the controller.

[0068] Step S520: Obtain the second position of the suspension spring and the weight of the clothes to be dehydrated. The second position information is the position of the suspension spring when the target dehydration program is started.

[0069] In some feasible embodiments, when the target spin-drying program is started, the weight of the clothes to be spun in the drum and the current position of the suspension spring are obtained, and the current position of the suspension spring is used as second position information. Specifically, a weighing device is provided inside the washing machine to weigh the drum and the clothes inside.

[0070] Step S530: Based on the weight of the garment tube, the first position of the suspension spring, the weight of the garment to be spun out, and the second position of the suspension spring, establish a model of the center of gravity of the garment to be spun out.

[0071] Specifically, a model of the center of gravity of the clothes to be spun can be established based on the weight of the washing machine drum, the first position of the suspension spring, the weight of the clothes to be spun, and the second position of the suspension spring obtained above.

[0072] For example, let the weight of the washing machine drum be recorded as M, the position of the suspension spring (i.e., the first position) when measuring the weight of the drum be x1, the weight of the clothes to be spun be m2, the position of the suspension spring when starting the target spin-drying program be x2, and let the center of gravity position of the clothes to be spun be x3. Then, the model of the center of gravity position of the clothes to be spun can be obtained as follows:

[0073] M·(x2-x1)=m2·(x3-x2)

[0074] Step S540: Determine the center of gravity position of the clothes to be dehydrated based on the center of gravity position model of the clothes to be dehydrated.

[0075] Specifically, based on the above-obtained model of the center of gravity of the garment to be dehydrated, the center of gravity position of the garment to be dehydrated can be expressed as follows:

[0076]

[0077] In this embodiment, a model of the center of gravity of the garment to be spun is established by obtaining the weight of the garment tube, the first position of the suspension spring, the weight of the garment to be spun, and the second position of the suspension spring. The expression for the center of gravity of the garment to be spun is then calculated, thereby accurately representing the relationship between the center of gravity of the garment to be spun and the position of the suspension spring.

[0078] Furthermore, based on the above embodiments, in one exemplary embodiment provided in this application, the controller 140 inside the washing machine is further configured to perform the following steps S610 and S620, which are described in detail below:

[0079] Step S610: When starting the washing machine, measure whether the drum is in a horizontal state using a level measuring device;

[0080] Step S620: If the measurement result indicates that the clothes tube is not in a horizontal state, then control the position of the adjustment spring to the first position so that the clothes tube is in a horizontal state.

[0081] Specifically, when the user starts the washing machine, a level measuring device can determine whether the drum is level. That is, the device acquires the eccentricity information of the drum and further determines the amount of eccentricity based on this information, thus determining whether the drum is level. If the eccentricity indicates that the drum is not level, the position of the adjusting spring is adjusted to the first position where the drum is level.

[0082] In this embodiment, when the washing machine is started, a level measuring device can be used to determine whether the drum is level. If the drum is not level, the suspension spring is adjusted to the first position where the drum is level, thereby avoiding vibration or noise caused by the drum hitting the washing machine cabinet when the washing machine is executing subsequent programs.

[0083] Furthermore, based on the above embodiments, in one exemplary embodiment provided in this application, the controller 140 of the washing machine is further configured to execute steps S710 and S720, as detailed below:

[0084] Step S710: Before starting the target dehydration program, measure whether the clothes tub is in a horizontal state using a level measuring device;

[0085] Step S720: If the measurement result indicates that the garment tube is not in a horizontal state, then control the position of the adjustment spring to the second position so that the garment tube is in a horizontal state.

[0086] Specifically, before the washing machine starts the target spin-drying program, a level measuring device can be used to determine whether the drum is currently in a level state. That is, the level measuring device measures the offset information of the drum and determines the eccentricity data of the drum based on the offset information. The eccentricity data of the drum indicates that the drum is not in a level state, and then the adjustment spring is controlled to adjust to a second position that makes the drum level.

[0087] In this embodiment, before the washing machine starts the target spin-drying program, a level measuring device can be used to determine whether the drum is currently level. If the drum is not level, the suspension spring is adjusted to the second position where the drum is level, thereby avoiding vibration or noise caused by the drum hitting the washing machine cabinet when the washing machine performs the subsequent target spin-drying program.

[0088] Furthermore, based on the above embodiments, in one exemplary embodiment provided in this application, the controller 140 of the washing machine is further configured to perform the following steps S810 to S830, which are described in detail below:

[0089] Step S810: Obtain the weight of the clothes to be washed;

[0090] Step S820: Based on the weight of the clothes drum, the first position of the suspension spring, the weight of the clothes to be washed, and the center of gravity position of the clothes to be spun, establish a target position model for the suspension spring.

[0091] Step S830: Determine the target position of the suspension spring based on the target position model of the suspension spring.

[0092] In some feasible embodiments, the washing machine also includes a weighing device for weighing the clothes to be washed in the drum to obtain the weight of the clothes to be washed. Based on the weight of the drum, the first position of the suspension spring, the weight of the clothes to be washed, the moisture content of the clothes to be spun, and the center of gravity position of the clothes to be spun, a target position model of the suspension spring can be established. Based on the target position model of the suspension spring, the target position of the suspension spring after the target washing program is completed can be determined.

[0093] Furthermore, as described in the above embodiment, the weight of the washing machine drum is recorded as M, the position of the suspension spring (i.e., the first position) when measuring the weight of the drum is x1, the weight of the clothes to be spun is m2, the position of the suspension spring when the target spin-drying program is started is x2, the center of gravity position of the clothes to be spun is x3, the weight of the clothes to be washed is m2, the moisture content of the clothes to be spun is α, and the target position of the suspension spring after the target spin-drying program is x4. Thus, a model of the target position x4 of the suspension spring can be established as follows:

[0094] M·(x4-x1)=n1·(1+α)·(x3-x4)

[0095] Therefore, the target position of the suspension spring can be represented as:

[0096]

[0097] Furthermore, since x4 is the target position of the suspension spring after the target dehydration process is completed, and x3 is the center of gravity position of the clothes to be dehydrated before the target dehydration process is executed, that is, during the target dehydration process, under the constraints of the center of gravity position x3 of the clothes to be dehydrated and the target position x4 of the suspension spring after the target dehydration process is completed, the displacement of the suspension spring is adjusted, and thus the displacement of the suspension spring can be expressed as Δx, as follows:

[0098] Δx = x⁴ - x³

[0099] Furthermore, Δx represents the distance the suspension spring moves during the dehydration process, which is a function of the dehydration speed curve and the total dehydration time. Since the dehydration speed curve is also a function of the dehydration time, Δx is solely a function of the dehydration time, expressed as:

[0100] Δx = x⁴ - x³ = f(t)

[0101] In this embodiment, a target position model of the hanging spring is established by using the weight of the clothes tub, the first position of the hanging spring, the weight of the clothes to be washed, the moisture content of the clothes to be spun, and the center of gravity position of the clothes to be spun. This allows for the derivation of the expression for the target position of the hanging spring after the target spin-drying process is completed, thus accurately calculating the target position of the hanging spring after the spin-drying process is completed.

[0102] For further details, please refer to Figure 3 Based on the above embodiments, in one exemplary embodiment provided in this application, the washing machine further includes a speed reducer, and the washing machine 140 is further configured to execute steps S910 and S920, as detailed below:

[0103] Step S910: Determine the real-time moving speed of the suspension spring based on the real-time displacement model of the suspension spring;

[0104] Step S920: Control the reducer to adjust the real-time displacement of the suspension spring according to the real-time moving speed.

[0105] Based on the above embodiments, the center of gravity of the clothes to be dehydrated is represented as:

[0106]

[0107] After the target dehydration process is completed, the target position of the suspension spring is represented as follows:

[0108]

[0109] Therefore, x3 can be considered as the position of the suspension spring at the start of dehydration, when the cylinder assembly is in a horizontal state, and x4 can be considered as the position of the suspension spring at the end of dehydration, when the cylinder assembly is also in a horizontal state.

[0110] Δx represents the distance the suspension spring moves during the dehydration process. It is a function of the dehydration speed curve and the total dehydration time. Since the dehydration speed curve is also a function of the dehydration time, Δx is only a function of the dehydration time, expressed as:

[0111] Δx = x⁴ - x³ = f(t)

[0112] The displacement of the suspension spring can also be considered as a function of the dehydration time. Therefore, the real-time moving speed of the suspension spring can be calculated based on the real-time displacement model, and the reducer can be controlled to adjust the real-time displacement of the suspension spring according to the real-time moving speed.

[0113] In addition, such as Figure 3 and Figure 4 As shown, Figure 3 For the line graph of the dehydration speed versus time in the target dehydration program, from Figure 3 It can be seen that during the execution of the target dehydration program, the dehydration speed increases from a buffer phase to a fixed dehydration speed, remains at a certain speed for a period of time, and then increases to the maximum dehydration speed. Therefore, based on the real-time displacement model of the suspension spring position mentioned above, it can be known that because the moisture content of the clothes to be dehydrated changes during the dehydration process, the real-time displacement of the suspension spring also changes with the dehydration speed. Figure 4 As shown, Figure 4 The relationship between the real-time displacement of the suspension spring and the dehydration time is shown.

[0114] In this embodiment, a real-time displacement model of the suspension spring with respect to time is established, and the real-time moving speed is determined by the real-time displacement model of the suspension spring. This allows the reducer inside the washing machine to control the movement of the suspension spring according to the implemented moving speed, thereby adjusting and buffering the vibration generated during the spin-drying process in real time. This avoids the problems of poor spin-drying effect and excessive vibration caused by excessive eccentricity of the clothes drum during the spin-drying process.

[0115] Furthermore, in one exemplary embodiment provided in this application, the washing machine further includes a balance screw, a clutch, and a motor;

[0116] The balance screw is connected to the suspension spring. The clutch and reducer are connected to the motor via drive shafts. The clutch and reducer are also connected to the balance screw via chains so that the position of the suspension spring can be adjusted by controlling the balance screw through the clutch.

[0117] Specifically, such as Figure 5 As shown, in this embodiment, the washing machine also includes a balance screw, which is installed on the washing machine's casing and drum. The balance screw installed on the casing and drum is connected by a suspension spring, so that rotating the balance screw drives the suspension spring to move, thereby adjusting the position of the suspension spring. Furthermore, a speed reducer is also provided inside the washing machine, which is used to adjust the rotation speed of the screw, thereby controlling the movement speed of the suspension spring.

[0118] Furthermore, such as Figure 6 As shown, a clutch is also installed inside the washing machine. This clutch is used to determine whether the balance screw is activated. Both the clutch and the reducer are connected to the motor through a drive shaft, so that the controller can control the motor to work, drive the clutch and reducer to drive the balance screw and the suspension spring to move, thereby achieving the effect of controlling the real-time displacement of the suspension spring.

[0119] In this embodiment, by setting a balance screw, a clutch, and a motor in the washing machine, the controller drives the motor to work, thereby driving the clutch and reducer connected to it to rotate the balance screw, thereby achieving real-time control of the suspension spring displacement, real-time buffering of vibrations generated during the dehydration process, and improving the dehydration quality.

[0120] Furthermore, based on the above embodiments, in one exemplary embodiment provided in this application, the controller 140 of the washing machine is further configured to perform the following steps:

[0121] The operating parameters of the motor are determined based on the real-time moving speed of the suspension spring;

[0122] Control the operating parameters of the motor so that the position of the suspension spring can be adjusted by the motor driving the lead screw.

[0123] Specifically, as described in the above embodiments, after determining the real-time moving speed of the suspension spring based on the real-time displacement model of the suspension spring, the motor operating parameters corresponding to the real-time moving speed of the suspension spring are determined, and the motor is controlled to work according to the corresponding operating parameters, thereby driving the clutch and reducer connected in the transmission to work, thereby realizing the synchronous rotation of the suspension spring by the balance screw connected to the clutch and reducer, thereby realizing the real-time buffering and adjustment of the vibration generated during the spin-drying process, reducing the eccentricity of the washing machine, realizing the automatic balance of the drum during the spin-drying process, and keeping the drum in a horizontal state at all times.

[0124] Furthermore, based on the above embodiments, in one of the exemplary embodiments provided in this application, the controller 140 of the washing machine is further configured to perform the following steps, which are detailed below: determining the highest spin speed that matches the eccentric data based on the mapping relationship between the eccentric data and the spin speed;

[0125] The target dehydration program is determined based on the highest dehydration speed matched by the eccentric data, wherein the highest dehydration speed in the target dehydration program does not exceed the highest dehydration speed matched by the eccentric data.

[0126] Specifically, the eccentricity data of the drum is obtained using a level measuring device installed on the drum. Since the washing machine drains all the water from the drum after washing, and because the washing machine passes through two to three resonance zones during the spin-drying process, the higher the eccentricity of the washing machine and the greater the tilt of the clothes to one side during these zones, the greater the vibration. When the vibration reaches a certain value, the outer drum will collide with the washing machine's outer casing, causing the washing machine to move or generate noise. Therefore, after determining the drum eccentricity data, the highest spin speed matching this data must be selected. The highest spin speed is the maximum spin speed beyond which the washing machine cannot perform normal high-speed spin-drying under the current eccentricity data. After determining the highest spin speed, a corresponding target spin-drying program is determined based on this speed. The highest spin speed in this target spin-drying program must not exceed the highest spin speed matching the eccentricity data.

[0127] In this embodiment, the maximum spin speed corresponding to the eccentricity data of the washing drum is determined, thereby determining the target spin speed program based on the maximum spin speed, which avoids the washing machine being unable to perform normal high-speed spin-drying under the current eccentricity data.

[0128] Please refer to Figure 7 , Figure 7 This is a simplified flowchart illustrating the control of a washing machine in an exemplary application scenario. Figure 7In the illustrated application scenario, when the user starts the washing machine (turns on the power), the washing machine's level measuring device automatically detects whether the drum is level. If the detection result indicates that the drum is not level, the device controls the screw connected to the suspension spring inside the washing machine to adjust the position of the suspension spring, thereby ensuring the drum is level. When the drum is level, the current position information of the suspension spring is recorded as its first position information. Then, after placing the clothes to be washed into the washing machine, the weight of the clothes is recorded, and the pre-selected washing program is executed. After completing the pre-selected washing program, the clothes to be spun are weighed, and the weight is recorded. At this point, the level measuring device again checks whether the drum is level. If the detection result indicates that the washing machine is not level, the device controls the screw connected to the suspension spring inside the washing machine to adjust the position of the suspension spring, thereby ensuring the drum is level, and the current position information of the suspension spring is recorded as its second position information. Then, select the corresponding target dehydration program, and adjust the position of the suspension spring in real time during the execution of the target dehydration program. This will buffer the vibration generated during dehydration by adjusting the position of the suspension spring, thereby achieving self-balancing of the garment drum.

[0129] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. Each block in a flowchart or block diagram may represent a module, segment, or portion of code, which contains one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in a block diagram or flowchart, and combinations of blocks in a block diagram or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0130] The units described in the embodiments of this application can be implemented in software or hardware, and the described units can also be located in a processor. The names of these units do not necessarily limit the specific unit itself.

[0131] The above description is merely a preferred exemplary embodiment of this application and is not intended to limit the implementation of this application. Those skilled in the art can easily make corresponding modifications or alterations based on the main concept and spirit of this application. Therefore, the scope of protection of this application should be determined by the scope of protection claimed in the claims.

Claims

1. A washing machine, characterized in that, The washing machine includes: Clothes tube; A horizontal measuring device is used to measure the eccentricity data of the garment tube; Suspension springs are used to adjust and buffer the vibrations generated during the operation of the washing machine. The controller is configured to perform the following steps: The moisture content of the clothes to be spun inside the clothes drum is obtained, and the eccentricity data of the clothes drum measured by the horizontal measuring device is obtained. The target dehydration program is determined based on the eccentricity data of the garment tube and the moisture content of the garment to be dehydrated; The washing machine is controlled to execute the target spin-drying program, and during the execution of the target spin-drying program, the real-time displacement of the suspension spring is adjusted based on the common constraint of the center of gravity position of the clothes to be spun and the target position of the suspension spring, wherein the target position of the suspension spring is the position of the suspension spring when the target spin-drying program is completed.

2. The washing machine as described in claim 1, characterized in that, The controller is also configured to perform the following steps: Obtain the center of gravity position of the garment to be dehydrated; Based on the center of gravity of the garment to be dehydrated, the moisture content of the garment to be dehydrated, and the weight of the garment tub, calculate the target position of the suspension spring after the target dehydration process is completed. A real-time displacement model of the suspension spring is established based on the target position and the center of gravity position of the clothes to be dehydrated, so that during the execution of the target dehydration program, the real-time displacement for adjusting the suspension spring is determined based on the real-time displacement model.

3. The washing machine as described in claim 2, characterized in that, The controller is also configured to perform the following steps: The weight of the garment tube and the first position of the suspension spring are obtained, wherein the first position is the position of the suspension spring when the weight of the garment tube is measured; The second position of the suspension spring and the weight of the clothes to be dehydrated are obtained, wherein the second position information is the position of the suspension spring when the target dehydration program is started; A model of the center of gravity of the garment to be spun is established based on the weight of the garment tube, the first position of the suspension spring, the weight of the garment to be spun, and the second position of the suspension spring. The center of gravity of the garment to be dehydrated is determined based on the center of gravity position model of the garment to be dehydrated.

4. The washing machine as described in claim 3, characterized in that, The controller is also configured to perform the following steps: When the washing machine is started, the level measuring device measures whether the drum is in a horizontal state; If the measurement results indicate that the garment tube is not in a horizontal state, then the position of the suspension spring is adjusted to the first position so that the garment tube is in a horizontal state.

5. The washing machine as described in claim 3, characterized in that, The controller is also configured to perform the following steps: Before starting the target dehydration program, the horizontal measuring device is used to measure whether the clothes tub is in a horizontal state; If the measurement results indicate that the garment tube is not in a horizontal state, then the position of the suspension spring is adjusted to the second position so that the garment tube is in a horizontal state.

6. The washing machine as described in claim 2, characterized in that, The controller is also configured to perform the following steps: Get the weight of the clothes to be washed; Based on the weight of the clothes drum, the first position of the suspension spring, the weight of the clothes to be washed, the moisture content of the clothes to be spun, and the center of gravity position of the clothes to be spun, a target position model of the suspension spring is established. The target position of the suspension spring is determined based on the target position model of the suspension spring.

7. The washing machine as described in claim 2, characterized in that, The washing machine also includes a speed reducer, and the controller is further configured to perform the following steps: The real-time moving speed of the suspension spring is determined based on the real-time displacement model of the suspension spring. The reducer is controlled to adjust the real-time displacement of the suspension spring according to the real-time moving speed.

8. The washing machine as described in claim 7, characterized in that, The washing machine also includes a balance screw, a clutch, and a motor; The balance screw is connected to the suspension spring. The clutch and the reducer are respectively connected to the motor via a drive shaft. The clutch and the reducer are also respectively connected to the balance screw via a chain so that the balance screw can be controlled by the clutch to adjust the position of the suspension spring.

9. The washing machine as described in claim 8, characterized in that, The controller is also configured to perform the following steps: The operating parameters of the motor are determined based on the real-time moving speed of the suspension spring; The operating parameters of the motor are controlled so that the position of the suspension spring is adjusted by the motor driving the lead screw.

10. The washing machine as described in claim 1, characterized in that, The controller is also configured to perform the following steps: Based on the mapping relationship between the eccentricity data and the dehydration speed, the highest dehydration speed that matches the eccentricity data is determined. A target dehydration program is determined based on the highest dehydration speed that matches the eccentricity data, wherein the highest dehydration speed in the target dehydration program does not exceed the highest dehydration speed that matches the eccentricity data.

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