Knob assembly for a washing machine, washing machine

Abstract

The application relates to the technical field of laundry equipment, and discloses a knob assembly for a washing machine. The knob assembly comprises a base plate and a knob body arranged on the base plate and capable of rotating and sliding relative to the base plate. The knob body switches program modes through sliding and adjusts a function parameter of a washing program in a current program mode through rotation. The dual-dimension division of the sliding and the rotation of the knob body enables a user to realize mode switching and parameter adjustment in a single control, thereby shortening an operation path, improving interaction efficiency and ease of use, and enhancing the interest of interaction and the overall user experience. The application further discloses a washing machine.

Description

Technical Field

[0001] This application relates to the field of laundry equipment technology, specifically to a knob assembly for a washing machine and a washing machine. Background Technology

[0002] Currently, washing machines typically use a rotary knob to select programs and function buttons to set parameters such as temperature, spin speed, and detergent dispensing volume. This approach suffers from increasingly prominent drawbacks, including a long operation chain, numerous hierarchical jumps, and high learning costs, making it difficult to effectively meet diverse washing needs and users' expectations for efficient, intuitive, and engaging interaction.

[0003] The related technology discloses a drum washing machine, which includes a front control panel, a touch screen mounted on the front control panel, a main control panel for implementing washing programs, and a display knob mounted on the front control panel. The display knob includes an outer rotating structure, a central display structure, and an encoder electrically connected to the main control panel. The touch screen is provided with touch buttons for selecting washing parameters, and the touch buttons are electrically connected to the main control panel through a button circuit. The outer rotating structure is engaged with the encoder and is used to select washing programs or adjust washing parameters. The central display structure is electrically connected to the main control panel and is used to display information about the selected washing program or washing parameters when the outer rotating structure rotates, which improves the user experience to some extent.

[0004] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art: While combining a knob with a touchscreen in related technologies allows users to select programs or adjust parameters via the knob and choose the type of parameter to be adjusted via the touchscreen, reducing some button operations to a certain extent, the knob only has a single interaction dimension of rotation. As the number of programs increases, the knob needs to navigate through all programs, reducing operational efficiency. Furthermore, users cannot group programs according to their own usage habits, making it difficult to quickly locate frequently used programs, thus affecting the convenience and personalized experience of the interaction.

[0005] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0006] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0007] This disclosure provides a knob assembly and a washing machine for use in a washing machine, in order to solve the problems of the existing washing machine knob having a single interaction method and a long operation chain.

[0008] According to a first aspect of the present invention, a knob assembly for a washing machine is provided, comprising: a base plate; a knob body disposed on the base plate and capable of rotating and sliding relative to the base plate; wherein the knob body switches program modes by sliding and adjusts the functional parameters of the washing program within the current program mode by rotating.

[0009] According to a second aspect of the present invention, a knob assembly for a washing machine is provided, comprising: a base plate; a knob body disposed on the base plate and capable of rotating and sliding relative to the base plate; wherein the knob body selects a washing program by sliding and adjusts the functional parameters of the washing program by rotating; or, the knob body selects a washing program by rotating and adjusts the functional parameters of the washing program by sliding.

[0010] According to a third aspect of the present invention, a washing machine is provided, comprising: a housing; and a knob assembly for the washing machine as described in any of the foregoing disclosed embodiments, disposed in the housing.

[0011] The knob assembly and washing machine for a washing machine provided in this disclosure can achieve the following technical effects: By introducing a sliding function dimension into the knob body, a two-dimensional interaction model is constructed, in which sliding is responsible for program mode switching and rotation is responsible for fine-tuning function parameters. This model supports both operations independently or in tandem. The dual-dimensional division of labor between sliding and rotating the knob body allows users to switch modes and adjust parameters within a single control, thereby shortening the operation path, improving interaction efficiency and ease of use, and enhancing the fun of the interaction and the overall user experience.

[0012] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0013] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein: Figure 1 This is a schematic diagram of the structure of a knob assembly for a washing machine provided in an embodiment of this disclosure; Figure 2 This is a schematic diagram of another knob assembly for a washing machine provided in an embodiment of this disclosure; Figure 3 This is a schematic diagram of another knob assembly for a washing machine provided in an embodiment of this disclosure; Figure 4 yes Figure 3 An enlarged schematic diagram of part A shown; Figure 5 This is a cross-sectional schematic diagram of a knob assembly for a washing machine provided in an embodiment of this disclosure; Figure 6 This is a partial schematic diagram of a knob assembly for a washing machine provided in an embodiment of this disclosure; Figure 7 This is a partial schematic diagram of another knob assembly for a washing machine provided in an embodiment of this disclosure; Figure 8 This is a schematic diagram of another knob assembly for a washing machine provided in an embodiment of this disclosure; Figure 9 This is a partially enlarged schematic diagram of another knob assembly for a washing machine provided in an embodiment of this disclosure; Figure 10 This is a partially enlarged schematic diagram of another knob assembly for a washing machine provided in an embodiment of this disclosure; Figure 11 This is a partially enlarged schematic diagram of another knob assembly for a washing machine provided in an embodiment of this disclosure.

[0014] Figure label: 10: Base plate; 11: Slide groove; 20: Knob body; 21: Knob housing; 31: Sliding detection mechanism; 32: Rotation detection mechanism; 321: Encoder; 41: Knob display assembly; 411: First area; 412: Second area; 413: Central area; 42: Light-emitting component; 421: Display light strip; 43: Diffusion plate; 50: Limiter; 60: Mode display module; 61: First indicator; 70: Sliding base; 71: Guide 72: Sliding guide groove; 73: First sliding track; 74: Second sliding track; 80: Force feedback component; 81: Hydraulic rod; 811: First hydraulic rod; 812: Second hydraulic rod; 813: First transmission component; 82: Elastic component; 821: Rolling part; 822: Pulley; 823: Second transmission component; 83: First magnetic suction component; 84: Second magnetic suction component; 85: Third magnetic suction component; 90: Function display module; 91: Touch area. Detailed Implementation

[0015] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0016] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0017] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0018] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0019] Unless otherwise stated, the term "multiple" means two or more.

[0020] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0021] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0023] Combination Figure 1-11 As shown, this embodiment of the present disclosure provides a knob assembly for a washing machine, including a base plate 10 and a knob body 20. The knob body 20 is disposed on the base plate 10 and is rotatable and slidable relative to the base plate 10. The knob body 20 switches program modes by sliding and adjusts the function parameters of the washing program in the current program mode by rotating.

[0024] The program modes mentioned in this disclosure refer to a collection of washing programs categorized and integrated based on washing scenarios, clothing types, or user habits. For example, they can be divided into standard program modes, favorite program modes, etc. Each program mode may contain one or more specific washing programs. For instance, the standard program mode includes basic daily washing programs such as standard wash, energy-saving wash, and mixed wash, while the favorite program mode includes washing programs customized by the user according to their needs. Functional parameters refer to the core adjustable parameters during the washing program's operation, including but not limited to washing temperature, spin speed, detergent dosage, and washing duration. Furthermore, preset time thresholds, preset speed thresholds, and preset parameter ranges can be personalized according to the washing machine's product positioning, user habits, and hardware performance; the specific values ​​do not constitute a limitation on the scope of protection of this disclosure.

[0025] Users can set custom washing programs via the app or cloud and save them to the washing machine's storage module or cloud server. The custom program can then be quickly recalled by sliding or rotating the knob component, eliminating the need to repeatedly set parameters, further simplifying the operation process and catering to users' personalized washing needs.

[0026] The base plate 10 can be directly taken from the washing machine panel, or it can be an independent plate that is set separately from the panel and fixedly mounted on the panel, such as the control panel housing. Both of these configurations can serve as the mounting base for the knob assembly. The knob body 20 can slide back and forth relative to the base plate 10 and rotate 360°. The sliding direction of the knob body 20 relative to the base plate 10 is not specifically limited; it can slide left and right, up and down, or other reasonable sliding directions, as long as it can achieve smooth reciprocating movement of the knob body 20 between preset sliding positions and meet the functional requirements of program mode switching or washing program selection.

[0027] By sliding the knob body 20 to different positions with a single motion, users can quickly switch between preset program modes, such as between the washing machine's standard mode and a user-defined favorite mode. This avoids the inefficient operation of existing technologies that require multiple rotations to navigate through all washing programs, thus shortening the number of positioning steps in the washing program. After entering the target program mode, users can directly adjust the washing program's functional parameters, such as temperature and spin speed, simply by rotating the knob. This dual-dimensional division of labor effectively shortens the operation chain, reduces the user's memory burden, and makes parameter adjustment both efficient and intuitive, meeting users' expectations for convenient interaction.

[0028] The knob assembly for a washing machine provided in this disclosure introduces a sliding function dimension into the knob body 20, constructing a two-dimensional interactive model where sliding handles program mode switching and rotation handles fine-tuning of function parameters. This model supports both operations independently or collaboratively. The dual-dimensional division of labor between sliding and rotating the knob body 20 allows users to switch modes and adjust parameters within a single control, thereby shortening the operation path, improving interaction efficiency and ease of use, and enhancing the fun of the interaction and the overall user experience.

[0029] Optionally, the knob body 20 can also be rotated to select the washing program within the current program mode.

[0030] The knob body 20, through rotation, can not only adjust function parameters but also select a specific washing program within the current program mode, such as standard wash or wool wash. When the knob body 20 is slid to the target program mode, rotating it first triggers the switching of the washing program. Each preset angle rotation, such as 30°, switches to the next washing program within that program mode. Simultaneously, the name of the currently selected washing program is displayed on the subsequent display component. After selecting the target washing program, further rotation of the knob body 20 switches to adjusting the function parameters of that washing program. In this case, the rotation angle is positively correlated with the adjustment range of the function parameter value; for example, a 60° rotation corresponds to a 5°C temperature adjustment.

[0031] This allows for the reuse of rotational motions, enabling the entire process of switching program modes, selecting washing programs, and adjusting function parameters to be completed without the need for additional parameter adjustment buttons. This effectively simplifies the operation process and reduces the number of steps required.

[0032] Testing revealed that traditional knob and button operation requires 5-8 steps and takes 15-20 seconds to switch between washing programs, temperatures, and spin speeds. However, using the knob assembly provided in this embodiment, users only need to slide it once to switch program modes and rotate it twice to adjust function parameters, requiring no more than 3 steps and taking no more than 8 seconds, effectively improving operational efficiency.

[0033] When elderly users operate traditional washing machines, the combination of knobs and buttons results in a high error rate of up to 30% due to frequent level transitions and complex operation steps. However, the two-dimensional interaction solution provided in this embodiment allows users to switch program modes by sliding and fine-tune parameters by rotating. The operation path is intuitive and concise. Simulation tests have shown that the error rate can be reduced to below 5%, effectively improving the ease of use of the product.

[0034] By integrating the washing program selection and parameter adjustment functions into the rotation of the knob, the operation is more seamless and efficient. Users no longer need to frequently switch between the knob and the touch screen, effectively reducing the learning cost and operational complexity.

[0035] Optionally, combined Figure 6 and Figures 9 to 11 As shown, the knob assembly for the washing machine also includes a sliding detection mechanism 31, a rotation detection mechanism 32, and a controller. The sliding detection mechanism 31 is correspondingly arranged with the knob body 20 and is used to detect the sliding position of the knob body 20 and generate a sliding signal. The rotation detection mechanism 32 is drivenly connected to the knob body 20 and is used to detect the rotation operation of the knob body 20 and generate a rotation signal. The controller is electrically connected to the sliding detection mechanism 31 and the rotation detection mechanism 32 respectively. The controller is configured to switch the program mode according to the sliding signal and select the function parameters of the washing program in the current program mode according to the rotation signal.

[0036] The sliding detection mechanism 31 can be a sliding rheostat, Hall sensor, or photoelectric sensor, corresponding to the knob body 20. When the knob body 20 slides relative to the base plate 10, the sliding detection mechanism 31 can detect the sliding position of the knob body 20 in real time and convert the sliding position into a sliding electrical signal to be sent to the controller. The rotation detection mechanism 32 can be an encoder 321. The encoder 321 is connected to the knob body 20 through gear transmission. When the knob body 20 rotates, it drives the shaft of the encoder 321 to rotate synchronously. The encoder 321 detects operation information such as rotation angle and rotation direction, and generates a rotation electrical signal to be sent to the controller. The rotation detection mechanism 32 can be an incremental encoder 321 with a resolution of 12 levels / revolution, that is, it outputs a pulse signal for every 30° rotation, corresponding to one level of parameter adjustment. The rotation torque of the encoder 321 is 0.5~0.7 N·m, which can provide a clear gear feel. The knob housing 21 and encoder 321 are connected by a spline and reinforced with set screws, with an anti-loosening torque of not less than 1.5 N·m, ensuring long-term reliability. The controller can be a microcontroller or PLC controller. The controller is electrically connected to the sliding detection mechanism 31 and the rotation detection mechanism 32 via wires. The controller has pre-stored the correspondence between program modes and sliding positions, and the correspondence between washing programs and function parameters. The controller is configured to receive sliding signals sent by the sliding detection mechanism 31 and switch to the corresponding program mode according to the sliding position corresponding to the sliding signal; and to receive rotation signals sent by the rotation detection mechanism 32 and adjust the function parameters of the washing program in the current program mode according to the rotation angle and rotation direction corresponding to the rotation signal.

[0037] By setting up a sliding detection mechanism 31, a rotation detection mechanism 32, and a controller, precise detection and automatic control of the sliding and rotational movements of the knob body 20 are achieved, improving the accuracy of knob operation feedback and the reliability of interaction. The sliding detection mechanism 31 can accurately identify the sliding position of the knob body 20, improving the accuracy of program mode switching and avoiding mode switching errors caused by sliding position deviations. The rotation detection mechanism 32 can accurately capture the rotational operation information of the knob body 20, making the adjustment of functional parameters more precise and improving the reliability of parameter adjustment. The controller, as the core control unit, realizes the coordinated processing of sliding and rotational signals. The controller can accurately distinguish between sliding and rotational signals and establish a clear command mapping; sliding signals are interpreted as switching program modes, and rotational signals are interpreted as adjusting functional parameters. This enables digital recognition and response to user operations.

[0038] Optionally, the controller is also configured to: when a sliding signal is detected, determine whether the duration of the sliding signal is greater than or equal to a preset time threshold; if the duration of the sliding signal is greater than or equal to the preset time threshold, perform a program mode switch; if the duration of the sliding signal is less than the preset time threshold, ignore the current sliding operation.

[0039] This embodiment prevents accidental touches by judging the duration of the swipe. By judging the duration of the swipe signal, it effectively distinguishes between intentional swipes and unintentional rapid touches. When the swipe time is less than a preset time threshold, the system determines it as an accidental touch and does not perform mode switching. The preset time threshold can be 0.5 seconds. This avoids program chaos caused by accidental touches and improves the fault tolerance of operation.

[0040] Upon detecting a sliding signal, the controller's internal timing module starts timing, determining if the duration of the sliding signal is greater than or equal to 0.5 seconds. If the duration is greater than or equal to 0.5 seconds, it is considered a valid user sliding operation, and a program mode switch is executed. If the duration is less than 0.5 seconds, it is considered a user accidental touch, and the sliding operation is ignored, maintaining the current program mode. To address potential accidental sliding during operation (such as a slight slide caused by a finger accidentally touching a knob), a preset time threshold is set, enabling precise differentiation between valid and accidental operations. This avoids incorrect program mode switching due to accidental touches, improving the reliability and stability of the interaction.

[0041] Optionally, the controller is also configured to: when a sliding signal and a rotation signal are detected to be input in parallel, prioritize the program mode switching corresponding to the sliding signal, temporarily store the rotation operation corresponding to the rotation signal, and automatically execute the temporarily stored rotation operation after the program mode switching is completed.

[0042] This embodiment achieves parallel coordinated operation of sliding and rotating of the knob body 20. When parallel input of sliding and rotating signals is detected, i.e., the user simultaneously slides and rotates the knob body 20, the controller prioritizes the program mode switch corresponding to the sliding signal, while temporarily storing the rotation operation corresponding to the rotating signal in the internal storage module. After the program mode switch is completed, the controller automatically calls the temporarily stored rotation signal and executes the corresponding rotation operation, i.e., adjusts the function parameters of the current washing program in the new program mode. This solves the problem of operation failure or response chaos caused by command conflict when the user performs sliding and rotating operations simultaneously. By setting the sliding priority response logic, the priority execution of program mode switching is ensured, while the rotation operation is temporarily stored and delayed for execution. This ensures smooth completion of mode switching without wasting the user's parameter adjustment operations, improving the continuity and convenience of operation and reducing user waiting time.

[0043] Optionally, the controller is also configured to: if it receives two consecutive sliding signals pointing to different program modes within a preset time period, determine it as a mis-touch operation and restore to the initial program mode.

[0044] If the controller receives two consecutive sliding signals pointing to different program modes within a preset time period, it determines it as a mis-touch operation and immediately reverts to the initial program mode. For example, if a user rapidly slides the knob left and right within 2 seconds, triggering sliding signals for two different program modes, the controller will revert to the default daily washing and care mode. By recognizing consecutive sliding signals pointing to different modes and reverting to the initial mode, the system avoids program mode confusion caused by continuous mis-sliding, allowing users to quickly return to normal operation, reducing the impact of misoperation, and improving the system's intelligence and fault tolerance.

[0045] Optionally, after pressing and holding the knob body 20, sliding the knob body 20 triggers a batch function parameter reset.

[0046] The controller is also configured to respond to long press operations. When it detects that the user has pressed and held the knob body 20 for more than a preset time (e.g., 3 seconds), and then detects a sliding operation, the controller interprets it as a batch parameter reset command, restoring all function parameters under the current washing program to their factory default values. This function is particularly convenient when users need to quickly reset multiple parameters, eliminating the need to adjust them one by one.

[0047] Optionally, the signal processing delay of the controller is controlled to be within 50ms.

[0048] From the moment the user initiates a sliding or rotating operation on the knob body 20, to the controller receiving the signal sent by the corresponding detection mechanism, completing signal processing, and issuing corresponding display feedback or tactile feedback commands, such as updating the display of the knob display assembly 41, switching the light effect of the light-emitting component 42, and adjusting the damping force of the force feedback component 80, the delay of the entire signal transmission and processing path does not exceed 50ms, ensuring that there is no significant lag between the user's operation and the system response, thereby improving the responsiveness of the operation and the user experience.

[0049] Optionally, combined Figure 6 As shown, the knob assembly for the washing machine also includes a knob display assembly 41 and a light-emitting component 42. The knob display assembly 41 is correspondingly arranged with the knob body 20 and can slide synchronously with the knob body 20 to display the washing program and function parameters in the current program mode. The light-emitting component 42 is disposed on the knob display assembly 41 and / or the substrate 10 and is used to generate corresponding dynamic light effects according to different program modes, washing programs and function parameters.

[0050] Through the coordinated operation of the knob display assembly 41 and the light-emitting component 42, a fully visualized feedback of the operation status is achieved, effectively solving the problem that users cannot intuitively obtain the operation status. The knob display assembly 41 slides synchronously with the knob, clearly displaying the washing program list and function parameters within the current program mode, ensuring that the displayed information is always synchronized with the position of the knob body 20, avoiding information misalignment due to positional shifts, and improving reading accuracy. The light-emitting component 42, through differentiated dynamic light effects, transforms abstract operation processes such as program mode switching and function parameter adjustment into intuitive visual signals, allowing users to quickly perceive operation feedback and enhancing the fun and convenience of interaction.

[0051] The knob display assembly 41 can be a small OLED display screen embedded in the middle area of ​​the knob body 20. It can slide synchronously with the knob body 20. Simultaneously, the knob display assembly 41 can be set not to rotate synchronously with the knob body 20, ensuring the displayed content remains upright for easy viewing and preventing the display content from being inverted due to knob body 20 rotation, thus affecting the user experience. The knob display assembly 41 is electrically connected to the controller and can display the washing program name and specific parameter values ​​of the function parameters in the current program mode in real time. The light-emitting component 42 can be an LED display strip 421, which is respectively located on the edge of the knob display assembly 41 and on the substrate 10. The display strip 421 is electrically connected to the controller and can generate corresponding dynamic light effects according to different program modes, washing programs, and function parameters. Alternatively, the light-emitting component 42 can also be an LED lamp array, with the lamps evenly distributed around the circumference of the knob body 20 or in a preset area of ​​the substrate 10. Its light color and flashing frequency can be flexibly adjusted according to the operating scenario, further enriching the visual feedback and enhancing the user's operational perception.

[0052] Optionally, combined Figure 6 As shown, the knob assembly also includes a light-diffusing plate 43, which is located outside the light-emitting component 42.

[0053] The light diffuser plate 43 can be made of acrylic PMMA material with a light transmittance of not less than 92%, which can evenly scatter the light emitted by the light-emitting component 42 to form a soft, glare-free light effect.

[0054] Optionally, combined Figure 5 and Figure 6 As shown, the knob body 20 includes a knob housing 21, which has a receiving cavity, and the knob display assembly 41 is located in the receiving cavity; the rotation detection mechanism 32 includes an encoder 321, which is connected to the knob housing 21 in a transmission manner, and the encoder 321 is driven to rotate by the rotation of the knob housing 21.

[0055] When the user rotates the knob housing 21, the encoder 321 rotates synchronously, thereby realizing the detection and signal transmission of the rotation operation. The knob display assembly 41 is fixedly installed inside the receiving cavity and can slide synchronously with the knob body 20. Through preset rotation isolation structures such as bearing isolation and snap-locking limits, it can be rotated and separated from the knob body 20, ensuring that the displayed content is always upright. In addition, the washing program list can be set at intervals along the circumference of the knob housing 21, and the function parameters are displayed in the central area 413 of the knob housing 21, forming a reasonable display layout of circumferential programs and central parameters, allowing users to quickly distinguish and obtain the information they need, further optimizing the operating experience. The knob display assembly 41 is located in the receiving cavity and is correspondingly arranged on the inner side of the knob housing 21. The display light of the knob display assembly 41 can be transmitted outward through the knob housing 21 to display the currently selected washing program and function parameters in real time.

[0056] Optionally, the controller is also configured such that when the knob body 20 rotates synchronously to switch program modes, the control knob display assembly 41 synchronously displays the parameter values ​​of the function parameters of the washing program corresponding to the target program mode, so as to realize the preview of function parameters.

[0057] When the knob body 20 is slid to switch program modes, rotating the knob body 20 simultaneously allows users to preview the parameter values ​​of the washing program's function parameters under the target program mode. This allows users to understand the detailed parameters of the target program mode's washing program, such as the default water temperature for wool wash, before deciding whether to switch.

[0058] When the knob body 20 is rotated to switch program modes, the controller receives the sliding and rotation signals in real time. Based on the sliding signal, it determines the target program mode; based on the rotation signal, it determines the adjustment range of the function parameters. Simultaneously, the control knob display assembly 41 displays the parameter values ​​of the corresponding washing program under the target program mode, enabling a preview of the function parameters. This breaks the traditional operation logic of switching modes first and then adjusting parameters, allowing users to preview and adjust the function parameters corresponding to the washing program under the target program mode while switching program modes. This reduces operation steps and improves operational efficiency. Users no longer need to wait for the mode switch to complete before adjusting parameters; they can anticipate whether the parameter settings meet their needs, avoiding the hassle of readjusting due to unsuitable parameters after switching modes, thus optimizing the user experience.

[0059] Optionally, the controller is also configured such that: when the washing machine is in standby mode, the control knob display assembly 41 and the light-emitting component 42 are in an off state; when a sliding signal is detected, the control knob display assembly 41 is partially lit to display program mode information; when a rotation signal is detected, the control knob display assembly 41 is fully lit to display washing program information.

[0060] This embodiment provides a low-power mode. By turning off the screen in standby mode, only partially lighting up to display mode information when swiping, and fully lighting up to display program information when rotating, energy-saving effects can be achieved while meeting interactive needs.

[0061] When the washing machine is in standby mode, the controller controls the knob display assembly 41 and the light-emitting component 42 to remain off, reducing standby power consumption and saving energy. When a sliding signal is detected, indicating that the user is operating the knob, the controller controls the knob display assembly 41 to partially illuminate, displaying only the currently switchable program mode information, such as the program mode name and corresponding light effect indicator, guiding the user to switch program modes. When a rotation signal is detected, indicating that the user is selecting a washing program or adjusting function parameters, the controller controls the knob display assembly 41 to fully illuminate, displaying detailed information about the current washing program and the specific values ​​of the function parameters, facilitating precise user adjustments. This intelligent switching of the knob component's display state reduces standby power consumption and provides targeted display content based on the user's operation progress, avoiding interference from irrelevant information and improving the intuitiveness and convenience of operation. Simultaneously, the design of switching between partial and full-screen illumination highlights the core content of the current operation, guiding the user to complete the operation step by step and reducing the learning curve.

[0062] Optionally, the controller is also configured to generate a reverse damping control signal when the adjustment parameter corresponding to the rotation signal is detected to exceed the preset parameter range corresponding to the current washing program, so as to increase the rotation resistance of the knob body 20 and control the light-emitting component 42 to emit a warning light effect.

[0063] The controller has preset limits for fine-tuning functional parameters. When the user attempts to adjust the parameters beyond the reasonable range, the controller detects that the adjustment parameter corresponding to the rotation signal exceeds the preset parameter range corresponding to the current washing program. It provides clear physical and visual warnings through reverse damping and warning light effects.

[0064] For example, when a user selects the wool wash program, the controller locks the upper limit of water temperature adjustment at 40°C. If the user continues to rotate the knob in an attempt to adjust the water temperature above 40°C, the controller will generate a reverse damping control signal to increase the rotational resistance of the knob body 20, providing the user with obvious tactile feedback; at the same time, it controls the light-emitting component 42 to emit warning light effects, such as flashing red light, to provide the user with visual feedback, thereby effectively protecting wool garments from shrinkage due to high temperatures.

[0065] A small electromagnetic damper can be added to the transmission connection between the knob housing 21 and the encoder 321. The electromagnetic damper is electrically connected to the controller. When the controller detects that the parameter adjustment exceeds the preset range, it immediately sends a control signal to the electromagnetic damper. The electromagnetic damper is energized, generating reverse electromagnetic resistance, which acts directly on the transmission structure between the knob housing 21 and the encoder 321, increasing the rotational resistance of the knob body 20 and providing the user with obvious tactile feedback. When the parameter adjustment returns to the preset range, the electromagnetic damper is de-energized, the resistance disappears, and the knob returns to its normal rotational feel. Alternatively, a friction damping component can be added to the rotational connection structure (such as a bearing connection) between the knob body 20 and the base plate 10. Specifically, a friction plate and an elastic pressure plate structure can be used. The friction plate is fixed on the rotational shaft of the knob body 20, and the elastic pressure plate is fixed on the base plate 10. The two are in contact with each other, and the preload of the elastic pressure plate provides basic frictional resistance. At the same time, a small electromagnet is connected to the elastic pressure plate, and the electromagnet is electrically connected to the controller. When it is necessary to increase the rotational resistance, the controller controls the electromagnet to be energized, attracting the friction plate and increasing the frictional damping, thereby increasing the rotational resistance of the knob; when no warning is needed, the electromagnet is de-energized, retaining only the basic frictional resistance to ensure normal knob rotation adjustment.

[0066] By combining tactile and visual feedback, the system promptly alerts users when parameters are adjusted beyond reasonable limits, preventing damage to clothing or poor washing results due to improper settings and enhancing operational safety. The reverse-damping tactile feedback allows users to perceive when parameters have been adjusted beyond the acceptable range without checking the display, making operation more convenient. The warning light effect further strengthens the alert, ensuring users can correct parameter settings promptly.

[0067] Optionally, the controller is also configured to control the light-emitting component 42 to produce a flowing light effect corresponding to the sliding direction when the knob body 20 slides.

[0068] The controller controls the light-emitting component 42 to generate a flowing light effect corresponding to the sliding direction when the knob body 20 slides. For example, when the knob body 20 slides to the left, the light effect of the LED display strip 421 flows from right to left; when the knob body 20 slides to the right, the light effect flows from left to right, and the flow speed is positively correlated with the sliding speed. By linking the flowing light effect with the sliding action, the fun and intuitiveness of the operation are enhanced, allowing users to clearly perceive the sliding direction and progress through the light effect, thus improving the interactive experience. The display strip 421 can be set on the edge of the knob display assembly 41 and the substrate 10, corresponding to the sliding trajectory of the knob body 20. The display strip 421 on the edge of the knob display assembly 41 slides synchronously with the knob body 20, while the display strip 421 on the substrate 10 is fixedly laid on both sides of the sliding guide trajectory. The two work together to make the flowing light effect more coherent and clearer, further enhancing the user's perception of the sliding action. In addition, the display light strip 421 can also be laid along the circumferential part of the knob housing 21, forming a ring-shaped flowing light effect in conjunction with the sliding action, further enriching the visual feedback form and enhancing the product's differentiated competitiveness.

[0069] Optionally, the controller is also configured to control the light-emitting component 42 to change its brightness as the function parameters are adjusted by rotating the knob body 20.

[0070] When the knob body 20 is rotated to adjust the function parameters, the brightness of the light-emitting component 42 changes linearly with the parameter value. The larger the parameter value, the brighter the light; the smaller the parameter value, the lower the brightness, providing intuitive feedback. For example, the higher the water temperature, the brighter the light, allowing the user to perceive the parameter value without looking at the screen. The light-emitting component 42 can be a display light strip 421, either mounted on the knob display assembly 41 or the base plate 10. The light-emitting component 42 is mounted on the base plate 10 along the direction of movement of the knob body 20. When the knob is slid, it produces a flowing light effect corresponding to the sliding direction, visualizing the operation trajectory. When the parameters are adjusted by rotation, the brightness of the light strip changes with the parameters and can establish a signal mapping with the encoder 321. Each pulse signal output by the encoder 321, such as a 30° rotation of the knob body 20, causes the display light strip 421 to switch colors, corresponding to one level of parameter adjustment. The user can intuitively perceive the adjustment progress through color changes. Furthermore, different program modes correspond to different color light effects, such as white for daily washing and care and purple for special care modes. Different functional parameters correspond to different light effect flashing frequencies, such as slow flashing for temperature adjustment and fast flashing for speed adjustment. This multi-dimensional visual feedback and tactile feedback corroborate each other, forming a complete interactive loop.

[0071] In the basic knob assembly of this embodiment, the user can switch between standard and favorite programs by sliding the knob body 20. In the standard program level, rotating the knob adjusts the water temperature from 30 to 60°C and the rotation speed from 500 to 1200 rpm. The indicator light strip 421 changes color from blue to red as the water temperature rises, enhancing the visual feedback of parameter adjustment. This control logic visualizes the adjustment of functional parameters, improves operational convenience, and the linear brightness change provides more subtle feedback, helping users to accurately control parameters and optimizing the overall interactive experience.

[0072] Optionally, combined Figure 9-11 As shown, the knob assembly for the washing machine also includes a limiter 50 and a position sensor. The limiter 50 is set to correspond to a preset sliding position and is used to abut against the knob body 20 when the knob body 20 slides to the preset sliding position, so as to limit the knob body 20 from continuing to slide. The position sensor is electrically connected to the controller and is used to generate a position signal and send it to the controller when the knob body 20 slides to the preset sliding position.

[0073] The limit switch 50 can adopt a mechanical snap-fit ​​structure, and the position sensor can be a photoelectric sensor. The combination of the limit switch 50 and the position sensor enables high-precision dual positioning. The sliding detection mechanism 31 and the position sensor can be integrated into the same component. This sliding detection mechanism 31 can not only detect the sliding position and sliding stroke, but also monitor the sliding speed in real time, thus eliminating the need for a separate sliding detection element. When the knob body 20 slides to its position, the mechanical snap-fit ​​first provides a physical limit accurate to ±0.1mm, making the knob absolutely stationary; subsequently, the photoelectric sensor detects the position signal and sends it to the controller to trigger the corresponding display switch. Multiple limit switches 50 are used, with one limit switch 50 corresponding to each preset sliding position, ensuring that the knob body 20 is effectively limited when sliding to the end position corresponding to each program mode.

[0074] In scenarios where the knob body 20 reciprocates between a first position and a second position, two limiters 50 are provided. One limiter 50 is located at the end of the first position, and the other limiter 50 is located at the end of the second position. This limits the sliding stroke of the knob body 20 to the two limiters 50, preventing the knob body 20 from sliding out of the preset sliding range. The limiters 50 can abut against the transmission structure, including the first transmission member 813 and the second transmission member 823, or against the end structure of the knob body 20 to mechanically limit the sliding stroke and prevent the knob body 20 from exceeding the preset sliding range. The first transmission member 813 can also abut against the end structures at both ends of the sliding guide groove 72, for example, directly against the end wall of the sliding guide groove 72, to achieve sliding limitation.

[0075] The limiter 50 can also be a rubber stop, which is set to correspond to the preset sliding position on the base plate 10, i.e., the sliding endpoint position corresponding to each program mode. The rubber stop is fixed on the base plate 10 and is used to abut against the end of the knob body 20 when the knob body 20 slides to the preset sliding position, limiting the knob body 20 from continuing to slide and avoiding damage to the mechanism due to excessive sliding. The position sensor can also be a Hall sensor. The Hall sensor is electrically connected to the controller and installed inside the limiter 50. The position sensor is used to detect the position signal of the knob body 20 when it slides to the preset sliding position and abuts against the limiter 50, and sends the position signal to the controller. After receiving the position signal, the controller locks the current program mode and controls the light-emitting component 42 to emit a position indication light effect, such as flashing briefly 3 times.

[0076] By setting the limiter 50, the sliding stroke of the knob body 20 can be effectively limited, preventing damage to components such as the sliding guide structure and sliding detection mechanism 31 between the knob body 20 and the base plate 10 due to excessive sliding, thus extending the service life of the knob assembly. By setting the position sensor, it is possible to accurately detect whether the knob body 20 has slid to the preset position, improving the accuracy of program mode switching and preventing mode switching failures or errors due to insufficient sliding position. Simultaneously, the linkage between the position sensor and the controller provides users with a positioning prompt, clearly indicating that the target program mode has been switched to, enhancing the intuitiveness of operation. Furthermore, the limit design of the rubber stop provides a certain amount of cushioning when the knob body 20 abuts against the limiter 50, reducing collision noise and improving operational comfort.

[0077] The gap between the knob housing 21 and the opening in the base plate 10 is controlled at 0.2~0.3mm. This gap setting balances smooth sliding and structural stability, effectively preventing knob wobble caused by excessive gap and sliding jamming caused by insufficient gap, ensuring smooth and jam-free sliding of the knob body 20 and improving the smoothness of operation. In addition, a wire storage groove is provided on the sliding base 70, which extends along the sliding direction of the knob body 20. During sliding, the wire can move freely in the storage groove, effectively preventing the wire from getting tangled or stuck. This avoids sliding obstruction or abnormal signal transmission caused by wire tangling, ensuring the normal operation of the knob assembly. It also facilitates the organization and storage of the wire, improves the neatness of the internal structure of the assembly, and reduces assembly difficulty.

[0078] Optionally, the program mode includes a first program mode and a second program mode. The knob body 20 corresponds to the first program mode when it is in the first position and to the second program mode when it is in the second position. The first program mode is a standard program mode, which includes preset washing programs. The second program mode is a favorite program mode, which includes custom washing programs.

[0079] Optionally, combined Figure 2 As shown, the program modes include a first program mode and a second program mode. The knob body 20 corresponds to the first program mode when in the first position and to the second program mode when in the second position. The knob assembly also includes a mode display module 60, which is disposed on the substrate 10 and is used to display the indication information of the current program mode. The mode display module 60 includes a first identifier 61 and a second identifier. The first identifier 61 is set to correspond to the first position and is used to indicate the first program mode. The second identifier is set to correspond to the second position and is used to indicate the second program mode. When the knob body 20 is in the first position, the first identifier 61 is exposed. When the knob body 20 is in the second position, the second identifier is exposed.

[0080] The program mode is specified into a first program mode and a second program mode, which can be a preset standard mode and a user-customizable favorite mode, respectively, to meet the user's need for grouping and managing frequently used programs. At the same time, through the mode display module 60 set on the base plate 10, the indicator is dynamically revealed when the knob is slid, intuitively indicating to the user the current program mode.

[0081] For example, the first program mode corresponds to the first position of the knob body 20, i.e., the right side of the substrate 10; the second program mode corresponds to the second position of the knob body 20, i.e., the left side of the substrate 10. When the user slides the knob body 20 to the left, the user can switch from the standard program mode to the favorite program mode; when the user slides it to the right, the user switches back from the favorite program mode to the standard program mode. The mode display module 60 includes a first identifier 61 and a second identifier. The first identifier 61 is an icon with the words "standard program" printed on it, which is set to the first position and is used to indicate the first program mode. The second identifier is an icon with the words "favorite mode" printed on it, which is set to the second position and is used to indicate the second program mode. When the knob body 20 is in the first position, the end of the knob body 20 covers the second identifier, and the first identifier 61 is exposed, so the user can intuitively see that the current program mode is the first program mode. When the knob body 20 is in the second position, the end of the knob body 20 covers the first identifier 61, and the second identifier is exposed, so the user can intuitively see that the current program mode is the second program mode. This design can also expand the number of program modes according to actual needs; simply add corresponding sliding positions and icons, demonstrating good scalability. For example... Figure 2 As shown, the knob body 20 is located in the first position, and the first program mode is identified as the standard program. This disclosure is not limited to this. The first program mode can also be defined as other reasonable names (such as daily washing and care mode, basic washing mode, etc.) according to actual washing needs. As long as it corresponds to the first sliding position of the knob body 20 and is used to cover the regular and commonly used basic washing program, it falls within the protection scope of this disclosure.

[0082] Optionally, combined Figure 2As shown, the substrate 10 is provided with a groove 11, and the knob body 20 is at least partially embedded in the groove 11 and can slide along the groove 11; the groove 11 includes a first end and a second end arranged opposite to each other in a preset direction, and the mode display module 60 includes a first mark 61 provided at the second end and a second mark provided at the first end. The first mark 61 is used to indicate a first program mode, and the second display mark is used to indicate a second program mode; when the knob body 20 is in the first position, the first mark 61 is exposed; when the knob body 20 is in the second position, the second mark is exposed.

[0083] The slide groove 11 is recessed in the base plate 10 to guide the sliding of the knob body 20. When the knob body 20 is circular, the slide groove 11 can be correspondingly set as an elliptical strip to fit the shape of the circular knob body 20. This allows the knob body 20 to precisely fit and smoothly contact the curved ends of the slide groove 11 when it moves to both ends. This avoids sliding jamming or collision wear caused by right-angle ends and further limits the sliding stroke of the knob body 20. Together with the limiter 50, it achieves double limiting, improving the stability and smoothness of the sliding operation. At the same time, the matching design of the elliptical strip slide groove 11 and the circular knob body 20 can also optimize the space utilization of the base plate 10, making the overall structure more compact and aesthetically pleasing. The embedded cooperation between the slide groove 11 and the knob body 20 on the base plate 10 limits the sliding trajectory of the knob, avoids sliding deviation, ensures that the knob slides smoothly in the preset direction, and improves the stability and smoothness of the sliding operation. The mode display module 60 is located at the bottom of the knob body 20. The markings of the mode display module 60 are correspondingly set at both ends of the slide groove 11 and are precisely linked with the sliding position of the knob. When the knob slides to the corresponding position, the corresponding mode marking is exposed, intuitively indicating the current program mode.

[0084] The length of the slide groove 11 is set according to the number of preset sliding positions. The more preset sliding positions there are, the longer the slide groove 11 should be, to ensure that each preset sliding position can be accurately corresponded within the range of the slide groove 11. If only the first program mode and the second program mode are set, corresponding to two preset sliding positions, the length of the slide groove 11 does not need to be too long. It is sufficient to allow the knob body 20 to smoothly slide between the two preset sliding positions, which saves the installation space of the base plate 10 and avoids structural redundancy caused by an excessively long slide groove 11, thus optimizing the overall layout.

[0085] Optionally, combined Figure 2 As shown, the knob display assembly 41 includes a first area 411 and a second area 412. The first area 411 is located adjacent to the first position, and the second area 412 is located adjacent to the second position. When the knob body 20 is in the first position, the first area 411 displays multiple washing program information in the first program mode. When the knob body 20 is in the second position, the second area 412 displays multiple washing programs in the second program mode.

[0086] The first area 411 can display the standard washing programs in the first program mode, such as, but not limited to, washing program labels for: standard wash, energy-saving wash, mixed wash, quick wash, wool wash, etc. The second area 412 can display the favorite washing programs in the second program mode, such as, but not limited to, personalized washing program labels for: user-defined programs, down wash, children's wear wash, dryer wash, etc. The first area 411 and the second area 412 are arranged radially opposite to each other on both sides of the knob display assembly 41, and the washing programs of the first area 411 and the second area 412 are arranged circumferentially along the knob display assembly 41. The central area 413 of the knob display assembly 41 can be used to display the specific parameter values ​​of the function parameters.

[0087] By dividing the knob display assembly 41 into a first area 411 and a second area 412 corresponding to two sliding positions, separate displays of washing program indicators for different program modes are achieved. This avoids frequent refreshes and overlaps of displayed content when switching modes, improving display clarity and intuitiveness. When the user slides the knob body 20 to different positions, they can quickly identify the current program mode and the available list through the indicators in the corresponding areas, further simplifying operation and enhancing the interactive experience.

[0088] Optionally, the knob assembly for the washing machine also includes a sliding base 70 and a force feedback element 80. The sliding base 70 is disposed on the base plate 10; the force feedback element 80 is disposed between the knob body 20 and the sliding base 70, and is used to provide different operating feel to the knob body 20 at different sliding positions.

[0089] The sliding base 70 can be fixed to the base plate 10 by screws or other fasteners. A force feedback element 80 is located between the knob body 20 and the sliding base 70. It generates variable resistance based on the sliding position of the knob body 20, providing a differentiated tactile feel and introducing physical tactile feedback into the sliding operation. When the knob slides to the corresponding position in the favorite mode, the force feedback element 80 produces a clear click or suction sensation, forming a physical boundary indication. This transforms the abstract operation result into a concrete physical sensation, enhancing the sense of confirmation and effectively preventing operational errors caused by excessive or insufficient sliding. The force feedback element 80 provides intuitive tactile feedback, allowing users to determine the sliding position by feel without looking at the display or labels, enabling blind operation. This not only helps users quickly locate the preset sliding position, reduce operational errors, and improve operational efficiency, but also enhances the operational quality, elevating the product's premium feel and user experience.

[0090] Optionally, combined Figure 5 As shown, the force feedback device 80 includes a hydraulic rod 81, one end of which is connected to the knob body 20, and the other end of which is connected to the sliding base 70, for providing a damping force to the knob body 20 that varies with the sliding position and / or sliding speed.

[0091] The force feedback device 80 employs a hydraulic rod 81 structure. The hydraulic rod 81 is filled with high-viscosity silicone oil, and the piston has micropores. The magnitude of its damping force is positively correlated with the sliding speed of the knob body 20. When the user pushes the knob body 20 to slide, the piston rod moves accordingly, and the silicone oil generates damping force through the micropores on the piston, achieving dynamic adjustment with the sliding speed. The damping increases when the hydraulic rod 81 slides quickly, preventing accidental touches. For example, when the sliding speed reaches 2 cm / s, the damping force can rapidly increase from the initial 0.5 N to 0.9 N, forming an effective buffer against accidental touches. The damping decreases when the hydraulic rod 81 slides slowly, allowing the knob body 20 to move smoothly and avoiding jamming. When sliding the knob body 20, under the action of the hydraulic rod 81, a noticeable damping sensation is generated at the beginning of the operation, and an assistive sensation is generated at the end, improving the delicacy and feel of the operation.

[0092] Optionally, combined Figure 4 and Figure 5 As shown, the knob assembly also includes a first transmission component 813, which is connected between the knob body 20 and the hydraulic rod 81; the sliding base 70 has a sliding guide groove 72, and the first transmission component 813 is slidably embedded in the sliding guide groove 72.

[0093] The sliding guide groove 72 on the sliding base 70 is adapted to the first transmission component 813. The first transmission component 813 can slide smoothly along the sliding guide groove 72, providing stable guidance for the sliding of the knob body 20, so that the sliding is smooth and without jamming.

[0094] Optionally, the hydraulic rod 81 is a miniature bidirectional hydraulic rod 81. The miniature bidirectional hydraulic rod 81 has a stroke of 5mm, an initial damping force of 0.8N, and an end-effector assist of 0.3N. When the user begins to push the knob body 20 to slide, the hydraulic rod 81 provides an initial damping force of 0.8N, creating a clear tactile feedback for operation; when the knob body 20 approaches its end point, the hydraulic rod 81 provides an end-effector assist of 0.3N to help the user smoothly complete the sliding switch.

[0095] Optionally, combined Figure 4 and Figure 5As shown, there are multiple hydraulic rods 81, including a first hydraulic rod 811 and a second hydraulic rod 812. The first hydraulic rod 811 and the second hydraulic rod 812 are symmetrically arranged on both sides of the first transmission member 813. The sliding base 70 has a first sliding rail 73 and a second sliding rail 74. The first hydraulic rod 811 is connected to the first end of the first transmission member 813, and the connection between the first hydraulic rod 811 and the first transmission member 813 is slidably inserted into the first sliding rail 73. The second hydraulic rod 812 is connected to the second end of the first transmission member 813, and the connection between the second hydraulic rod 812 and the first transmission member 813 is slidably inserted into the second sliding rail 74.

[0096] The first hydraulic rod 811 and the second hydraulic rod 812 are symmetrically arranged on both sides of the first transmission member 813 about the sliding direction of the knob body 20, and are also symmetrically arranged on both sides of the sliding guide groove 72. The dual hydraulic rod 81 structure with symmetrical arrangement on both sides ensures that the first transmission member 813 experiences balanced force during sliding, avoiding skewness and jamming caused by unilateral force, and improving the smoothness and consistency of the knob body 20's sliding. Simultaneously, the dual hydraulic rods 81 work together to provide damping force, enhancing the stability and adjustment accuracy of force feedback, further optimizing the operating feel, and the symmetrical structure helps improve the overall structural reliability and service life.

[0097] Optionally, the hydraulic rod 81 has a built-in pressure sensor that is electrically connected to the controller. The pressure sensor is used to detect the sliding speed of the knob body 20 in real time and send the speed detection signal to the controller. The damping force of the hydraulic rod 81 is dynamically adjusted according to the sliding speed.

[0098] When the detected sliding speed is greater than or equal to a first speed, the controller controls the hydraulic rod 81 to increase the damping force to a first preset value, forming an anti-accidental touch buffer; when the sliding speed is less than a second speed, the damping force decreases to a second preset value, improving the smoothness of operation. For example, when the detected sliding speed is greater than or equal to 2 cm / s, the controller controls the hydraulic rod 81 to increase the damping force to 0.9 N, forming an anti-accidental touch buffer; when the sliding speed is less than 1 cm / s, the damping force decreases to 0.4 N, improving the smoothness of the sliding operation.

[0099] The hydraulic rod 81 provided in this embodiment is suitable for a temperature range of -10℃ to 45℃ and a humidity of ≤90%. The hydraulic rod 81 can maintain damping stability even in low-temperature environments, which can improve the environmental adaptability of the knob assembly.

[0100] Optionally, the force feedback component 80 includes an electromagnetically driven slider, which controls the sliding speed and positioning through electromagnetic attraction. Users can customize and adjust damping parameters via a remote app for personalized operation feel. Precise control of the sliding trajectory through electromagnetic attraction allows for flexible adjustment of damping parameters via a remote app to suit different user habits, improving ease of operation and user experience. Furthermore, it works in conjunction with the sliding guide and limiting structure without affecting the functionality of other components.

[0101] Optionally, combined Figure 10 and Figure 11 As shown, the force feedback device 80 includes an elastic element 82, which is connected to the knob body 20. The sliding base 70 is provided with a guide rail 71, which extends non-linearly along the sliding direction of the knob body 20. The knob body 20 drives the elastic element 82 to move along the guide rail 71, which generates a damping force that changes with the sliding position when the knob body 20 slides.

[0102] The elastic element 82 can be a spring or an elastic metal sheet. Both ends of the elastic element 82 along the deformation direction are respectively engaged with the knob body 20 and the guide rail 71. One end of the elastic element 82 is fixedly connected to the knob body 20, while the other end is freely positioned. The sliding base 70 is provided with the guide rail 71, which extends non-linearly along the sliding direction of the knob body 20, such as in an arc, wave, or sawtooth shape. The non-linear extension of the guide rail 71 causes the compression of the elastic element 82 to vary with the sliding position, thereby generating a damping force that varies with the sliding position. When the knob body 20 slides, it drives the elastic element 82 to move along the guide rail 71. Under the compression of the guide rail 71, the elastic element 82 deforms, generating a damping force that varies with the sliding position. When the guide rail 71 faces the protruding part of the elastic element 82, the compression of the elastic element 82 increases, and the damping force increases accordingly. When the guide rail 71 faces the concave part of the elastic element 82, the compression of the elastic element 82 decreases, and the damping force decreases accordingly. The non-linear design of the guide rail 71 enables precise changes in damping force, providing users with clear tactile feedback and helping them locate the preset sliding position. The deformation reset function of the elastic element 82 ensures smooth and seamless sliding of the knob body 20, improving operational comfort.

[0103] Optionally, combined Figure 10 and Figure 11As shown, the knob body 20 is connected to the elastic element 82 via a second transmission member 823. One end of the second transmission member 823 is connected to the sliding base 70, and the other end is connected to the elastic element 82. This is used to realize the synchronous transmission of force and motion between the knob body 20 and the elastic element 82, so that the knob body 20 can stably drive the elastic element 82 to move along the guide rail 71 when it slides. The guide rail 71 extends in an M-shape along the sliding direction of the knob body 20. The first end of the guide rail 71 corresponds to the first position of the knob body 20, and the second end of the guide rail 71 corresponds to the second position of the knob body 20. The guide rail 71 protrudes away from the elastic element 82 at both the first and second ends, and protrudes towards the elastic element 82 in the middle. The first position corresponds to the first program mode, and the second position corresponds to the second program mode.

[0104] The differentiated raised design of the M-shaped guide rail 71 causes significant differences in the compression of the elastic element 82 when the knob body 20 slides to the preset sliding positions at both ends and the middle area 413, thus producing different damping sensations. This enhances the positioning feedback of the preset sliding position, helping users quickly identify the current sliding position through touch, while also improving the finesse of the sliding operation. In the raised areas at both ends of the M-shaped guide rail 71, the elastic element 82 has a small compression and moderate damping force, which fits the positioning requirements of the preset sliding position; in the recessed area in the middle, the elastic element 82 has a larger compression and increased damping force, which can prevent the knob body 20 from sliding randomly in non-preset positions.

[0105] Optionally, combined Figure 10 and Figure 11 As shown, the force feedback device 80 also includes a rolling part 821, which is located at one end of the elastic member 82 facing the guide rail 71. The elastic member 82 rolls with the guide rail 71 through the rolling part 821.

[0106] This effectively reduces the frictional resistance between the elastic element 82 and the guide rail 71, preventing slippage and jamming, while also reducing component wear and extending service life.

[0107] Optionally, combined Figure 10 and Figure 11 As shown, the rolling part 821 is a pulley 822, which is rotatably mounted on the end of the elastic member 82 facing the guide rail 71 via a rotating shaft. The elastic member 82 rolls with the guide rail 71 through the pulley 822, converting the sliding friction between the elastic member 82 and the guide rail 71 into rolling friction. This effectively reduces the frictional resistance between the elastic member 82 and the guide rail 71.

[0108] Optionally, the elastic element 82 is an elastic metal sheet, and the rolling part 821 is a ball. As a low-cost alternative, an elastic metal sheet combined with a ball structure can be used. When the knob body 20 slides, the ball rolls on the elastic metal sheet, and the deformation of the metal sheet provides segmented damping feel. The structure is simple and inexpensive.

[0109] Optionally, combined Figure 8 and Figure 9 As shown, the force feedback device 80 includes a first magnetic 83, a second magnetic 84, and a third magnetic 85. The first magnetic 83 is connected to the knob body 20. The second magnetic 84 is disposed on the sliding base 70, corresponding to a preset sliding position, and has the opposite magnetic properties to the first magnetic 83. The third magnetic 85 is disposed on the sliding base 70, corresponding to a non-preset sliding position, and has the same magnetic properties as the first magnetic 83. The first magnetic 83 moves with the knob body 20 and is used to engage with the second magnetic 84 when the knob body 20 slides to the preset sliding position to provide a positioning feel, and to repel the third magnetic 85 when the knob body 20 slides to a non-preset sliding position to provide a damping feel.

[0110] When the knob body 20 slides to the preset sliding position, the first magnetic component 83 and the second magnetic component 84 engage, providing a crisp positioning feel. When it is not in the preset sliding position, the first magnetic component 83 and the third magnetic component 85 repel each other, providing a continuous damping feel and preventing the knob from wobbling. The magnetic force feedback design provides a delicate and noiseless operation with a fast response speed, providing real-time tactile feedback to the user. At the same time, the magnetic force feedback positioning is precise, allowing the knob body 20 to accurately stop at the preset sliding position, avoiding positional deviation caused by vibration or other factors. The magnetic structure is simple, has a long service life, and the magnetic force can be adjusted by adjusting the magnet specifications to adapt to different users' operating habits. The first magnetic component 83, the second magnetic component 84, and the third magnetic component 85 can all be implemented using permanent magnets, or they can be implemented using electromagnets, magnetic adsorption sheets, or other components with magnetic attraction functions; this disclosure is not limited to these.

[0111] When the knob body 20 slides between the first position and the second position, the sliding base 70 is provided with a second magnetic member 84 corresponding to the first position and the second position, and a third magnetic member 85 corresponding to the middle position between the first position and the second position; the knob body 20 is provided with a first magnetic member 83. Through the magnetic attraction between the first magnetic member 83 and the second magnetic member 84 and the third magnetic member 85, the knob body 20 achieves a magnetic positioning feel in the first position and the second position, and a damping feel in the middle position, providing the user with a clear gear feel and position feedback.

[0112] The specific structural form of the sliding base 70 and the transmission component can be adaptively adjusted according to the type of force feedback component 80 used, so as to achieve matching and cooperation with different force feedback structures, ensuring the stable realization of the force feedback function and the smoothness of the knob sliding operation.

[0113] The controller is also electrically connected to the force feedback device 80, and the controller is also configured with three optimized control logics, each corresponding to a different operating scenario.

[0114] Optionally, the controller is also electrically connected to the force feedback element 80, and the controller is further configured to: dynamically adjust the damping force of the force feedback element 80 according to the program mode of the knob body 20, wherein different program modes correspond to different damping forces; or, dynamically adjust the damping force of the force feedback element 80 according to the washing program of the knob body 20, wherein different washing programs correspond to different damping forces.

[0115] When the knob body 20 switches program modes by sliding, the controller dynamically adjusts the damping force of the force feedback component 80 according to the program mode currently selected by the knob body 20. Different program modes correspond to different damping forces. When the knob body 20 selects a washing program by sliding, the controller dynamically adjusts the damping force of the force feedback component 80 according to the washing program currently selected by the knob body 20. Different washing programs correspond to different damping forces. When the knob body 20 adjusts function parameters by sliding, the controller can also dynamically adjust the damping force of the force feedback component 80 according to the function parameters currently selected by the knob body 20. Different function parameters correspond to different damping forces.

[0116] When the knob body 20 switches program modes by sliding, the damping force is small for frequently used modes and large for less frequently used modes. For example, the damping force corresponding to the daily washing and care mode (frequently used mode) is small, making it easy for users to quickly switch by sliding; the damping force corresponding to the special mode (infrequently used mode) is large, to prevent users from accidentally switching. The controller can have multiple program modes and their corresponding damping force mapping tables preset. For example, the sliding damping force is set to 0.4N for the standard mode that is used frequently; and 0.6N for the favorite mode that is used infrequently.

[0117] This allows for intelligent adjustment of the damping force, optimizing the operating feel based on the frequency of use of each program mode. This facilitates quick switching between frequently used modes while effectively preventing accidental switching to less frequently used modes, improving the reliability and convenience of the interaction and catering to users' personalized habits. Furthermore, the differentiated damping force design allows users to quickly distinguish the current program mode through tactile feedback, further enhancing the intuitiveness of operation.

[0118] Optionally, the controller is also configured to dynamically adjust the damping force of the force feedback element 80 according to the sliding speed of the knob body 20, wherein the damping force is increased when the sliding speed is greater than or equal to a preset speed threshold, and the damping force is decreased when the sliding speed is less than the preset speed threshold.

[0119] The sliding speed can be detected by the sliding detection mechanism 31. The controller dynamically adjusts the damping force of the force feedback component 80 based on the sliding speed of the knob body 20. Specifically, when the sliding speed is greater than or equal to a preset speed threshold (e.g., 5 cm / s), the damping force is increased to slow down the sliding speed of the knob body 20, preventing inaccurate positioning caused by excessively fast sliding; when the sliding speed is less than the preset speed threshold, the damping force is decreased to make the knob body 20 slide more smoothly. By dynamically adjusting the damping force according to the sliding speed, precise control of the knob's sliding is achieved, avoiding operational errors caused by excessively fast sliding speeds, such as missing the preset sliding position. It also improves operational comfort during low-speed sliding, enhancing operational accuracy and convenience. Furthermore, the dynamic adjustment of the damping force enhances the tactile feel of the operation, allowing users to experience the product's intelligent design.

[0120] Optionally, the controller is also configured to: dynamically adjust the damping force of the force feedback element 80 according to the usage frequency of each program mode, wherein the damping force corresponding to the program mode with high usage frequency is less than the damping force corresponding to the program mode with low usage frequency; or, dynamically adjust the damping force of the force feedback element 80 according to the usage frequency of each washing program, wherein the damping force corresponding to the washing program with high usage frequency is less than the damping force corresponding to the washing program with low usage frequency.

[0121] When the knob body 20 switches program modes by sliding, the controller dynamically adjusts the damping force of the force feedback element 80 according to the frequency of use of each program mode. The damping force corresponding to a frequently used program mode is less than the damping force corresponding to a less frequently used program mode. Similarly, when the knob body 20 selects a washing program by sliding, the controller dynamically adjusts the damping force of the force feedback element 80 according to the frequency of use of each washing program. The damping force corresponding to a frequently used washing program is less than the damping force corresponding to a less frequently used washing program.

[0122] The controller records the frequency of use of program modes or washing programs and automatically lowers the damping force corresponding to the most frequently used program mode or washing program during the next operation, making it increasingly user-friendly. The controller has an internal counting module that tracks the usage frequency of each program mode or washing program in real time, updating the usage frequency data periodically (e.g., weekly). Based on usage frequency, it adjusts the damping force by decreasing the damping force corresponding to high-frequency program modes or washing programs and increasing the damping force corresponding to low-frequency program modes or washing programs. This enables personalized adaptive adjustment of the damping force, optimizing the operation feel of frequently used modes based on the user's actual usage habits, allowing users to switch to frequently used modes more quickly and smoothly, enhancing the personalized interactive experience. Simultaneously, increasing the damping force of low-frequency program modes or washing programs effectively prevents accidental switching, further improving the reliability of the interaction and making the product more closely aligned with the user's actual needs.

[0123] For example, for frequently used washing programs such as quick wash, the controller reduces the sliding damping force by 30%, from 0.5N to 0.35N, and increases the rotation adjustment step size from 10℃ / level to 15℃ / level, achieving high efficiency in high-frequency scenarios. For precision washing programs such as wool wash, the controller increases the damping force by 20%, from 0.5N to 0.6N, and decreases the adjustment step size from 10℃ / level to 5℃ / level, achieving precision in precision scenarios. This scenario-adaptive interactive design effectively enhances the user experience.

[0124] Optionally, combined Figure 1 As shown, the knob assembly for the washing machine also includes a function display module 90, which is located on the base plate 10 and is used to display the function parameter type corresponding to the current washing program. It is configured to allow different function parameter types to be selected by touch.

[0125] The function display module 90 uses a touch screen and is located on the substrate 10, but can also be located in other positions on the washing machine panel. By setting up an independent function display module 90, it displays the function parameters of the washing program, such as temperature, spin speed, and washing time. The function parameter types are not limited to illustrations; they can also include the number of rinses, detergent dosage, etc., and the function parameter types can be expanded and set according to actual washing needs. Users can conveniently select the function parameter type to be adjusted by touching the touch screen of the function display module 90, and then adjust the specific value of that parameter by rotating the knob. The function display module 90 is located on the rear side of the substrate 10, and the display light of the function display module 90 can be transmitted outward through the substrate 10 to intuitively display the function parameter type corresponding to the current washing program.

[0126] Combination Figure 1 and Figure 2As shown, the function display module 90 has an independent touch area 91 for each function parameter type. When a user touches a touch area 91, they can select that function parameter type. Rotating the knob body 20 then adjusts the specific value of that parameter type. Simultaneously, the function display module 90 highlights the currently selected parameter type for easy user identification. By setting up the function display module 90, visual selection of function parameter types is achieved. Users can quickly select the target parameter type through touch operation and then adjust the parameter value by rotating the knob. The operation logic is clear and the hierarchy is simple, improving the efficiency of parameter adjustment. The highlighted display design of the function display module 90 allows users to clearly see the currently selected parameter type, avoiding parameter adjustment errors. Furthermore, the collaborative work of the function display module 90 and the knob body 20 effectively enriches the interaction methods, enhances the product's intelligence level and user experience, and better supports diverse washing parameter adjustment needs.

[0127] Combination Figure 1-11 As shown, this disclosure provides another knob assembly for a washing machine, including a base plate 10 and a knob body 20. The knob body 20 is disposed on the base plate 10 and is rotatable and slidable relative to the base plate 10. The knob body 20 switches program modes by rotating and adjusts the function parameters of the washing program in the current program mode by sliding; or, the knob body 20 selects a washing program by sliding and adjusts the function parameters of the washing program by rotating; or, the knob body 20 selects a washing program by rotating and adjusts the function parameters of the washing program by sliding.

[0128] This embodiment provides three independently implementable interaction methods, and it also includes the sliding base 70, force feedback component 80, sliding detection mechanism 31, rotation detection mechanism 32, controller, knob display assembly 41, light-emitting component 42, limiter 50, position sensor, mode display module 60 and function display module 90 structures described in the previous embodiments. Its working principle and beneficial effects are the same as those in the previous embodiments, and will not be repeated here.

[0129] The first interaction method: The knob body 20 switches program modes by rotation and adjusts the function parameters of the washing program within the current program mode by sliding. Users can flexibly switch between preset standard program modes and favorite program modes by rotating the knob body 20. The rotation detection mechanism 32 captures the rotation signal and transmits it to the controller to complete the mode switching. After switching to the target program mode, users can adjust the function parameters of the washing program in the current mode, such as water temperature and spin speed, by sliding the knob body 20. The sliding action and parameter adjustment logic are precisely linked, enabling rapid parameter adjustment. This reverse interaction rule provides ergonomic operation options for users with different usage habits, such as left-handed users, fully demonstrating the high level of interactive flexibility of this knob component.

[0130] The second interaction method involves using the knob body 20 to select a specific washing program by sliding it, and then rotating it to adjust the function parameters of the selected program. The base plate 10 has multiple evenly distributed sliding positions, each corresponding to a specific washing program, such as standard wash, energy-saving wash, wool wash, and quick wash. The correspondence between each sliding position and the washing program is clearly indicated by the mode display module 60. Users do not need to rotate through all programs; they can simply slide the knob body 20 to the corresponding position of the target program to quickly select it, achieving "slide to position." After selection, rotating the knob body 20 adjusts the function parameters of that washing program, such as temperature and spin speed. The rotation angle is linearly related to the parameter adjustment range, making the operation intuitive and precise. This method significantly improves program selection efficiency, especially suitable for washing machines with a large number of washing programs. Users can memorize the sliding positions corresponding to frequently used programs based on their habits, enabling quick access to these programs. This reduces the learning curve and enhances the convenience and personalized experience of the interaction.

[0131] For example, users can switch between three operation levels—washing, rinsing, and spin-drying—by sliding the knob body 20. Each level corresponds to different function adjustment needs. When sliding to the rinsing level, rotating the knob body 20 adjusts the number of rinses, ranging from 1 to 3. The knob display assembly 41 simultaneously displays the icon of the current level and the number of rinses, with the illuminated component 42 providing a highlight indicator, allowing users to clearly understand the current operation level and parameter settings, avoiding operational confusion. In another exemplary scenario, the user slides the knob to select a quick wash from the washing program list, and then rotates the knob to adjust the washing time to 15 minutes. The operation path is simple and suits the needs of minimalist operation.

[0132] The third interaction method: The knob body 20 selects a specific washing program by rotating it, and adjusts the function parameters of the selected washing program by sliding it. When the user rotates the knob body 20, the rotation detection mechanism 32 captures the rotation angle signal in real time. Every time the preset angle is rotated, such as 30°, the controller triggers a washing program switch. The switching order can be preset, and the display component simultaneously displays the name of the currently selected program for easy user confirmation. After selecting the target washing program, the user slides the knob body 20. The sliding detection mechanism 31 captures the sliding direction and sliding distance signals. The sliding direction corresponds to the parameter adjustment direction, such as sliding to the left to decrease the temperature and sliding to the right to increase the temperature. The sliding distance corresponds to the parameter adjustment range, achieving precise parameter adjustment. This method retains the traditional operation habit of selecting programs by rotating the knob, which can reduce the user's learning cost, especially suitable for users who are accustomed to traditional knob operation and elderly users. Compared with the traditional button adjustment method, sliding adjustment is more coherent and precise, avoiding the cumbersomeness and accidental touch risk of button operation. At the same time, it realizes the separation control of program selection and parameter adjustment, optimizes the operation chain, improves operation efficiency, and meets the user's needs for efficient and intuitive interaction.

[0133] The three interaction methods described above collectively demonstrate the high degree of flexibility of this knob component, enabling it to adapt to the usage preferences of different users. This breaks the limitations of the traditional single-interaction logic of knobs, further broadening the product's applicable user base. Simultaneously, relying on various auxiliary structures, it ensures smooth, accurate, and intuitive operation, comprehensively enhancing the user experience. Furthermore, the integration of sliding and rotating dual interaction functions into the knob body 20 simplifies the operation process and reduces the need for multiple navigation steps.

[0134] This disclosure provides a washing machine, including a housing and a knob assembly for the washing machine as described in any of the above-disclosed embodiments, the knob assembly being disposed in the housing.

[0135] The washing machine provided in this embodiment includes the knob assembly for a washing machine as described in any of the above-disclosed embodiments, and therefore has all the beneficial effects of the knob assembly for a washing machine as described in any of the above-disclosed embodiments, which will not be repeated here.

[0136] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A knob assembly for a washing machine, characterized in that, include: substrate; The knob body is located on the base plate and can rotate and slide relative to the base plate; The knob body allows users to switch program modes by sliding it and adjust the function parameters of the washing program within the current program mode by rotating it.

2. The knob assembly for a washing machine according to claim 1, characterized in that, The knob can also be rotated to select the washing program within the current program mode.

3. The knob assembly for a washing machine according to claim 1, characterized in that, Also includes: A sliding detection mechanism is provided corresponding to the knob body to detect the sliding position of the knob body and generate a sliding signal; A rotation detection mechanism is connected to the knob body via a transmission mechanism to detect the rotation operation of the knob body and generate a rotation signal; The controller is electrically connected to both the sliding detection mechanism and the rotating detection mechanism, and is configured as follows: The program mode is switched according to the sliding signal, and the function parameters of the washing program within the current program mode are selected according to the rotation signal.

4. The knob assembly for a washing machine according to claim 3, characterized in that, The controller is also configured as follows: Upon detecting a sliding signal, determine whether the duration of the sliding signal is greater than or equal to a preset time threshold; if the duration of the sliding signal is greater than or equal to the preset time threshold, execute a program mode switch; if the duration of the sliding signal is less than the preset time threshold, ignore the current sliding operation; and / or, When parallel input of sliding signal and rotation signal is detected, the program mode switch corresponding to the sliding signal is responded to first, and the rotation operation corresponding to the rotation signal is temporarily stored. The stored rotation operation is automatically executed after the program mode switch is completed. And / or, If two consecutive sliding signals pointing to different program modes are received within a preset time period, it is determined to be a mis-touch operation, and the system will revert to the initial program mode.

5. The knob assembly for a washing machine according to claim 3, characterized in that, Also includes: The knob display assembly is set to correspond with the knob body and can slide synchronously with the knob body to display the washing program and function parameters in the current program mode; The light-emitting component, located on the knob display assembly and / or substrate, is used to generate corresponding dynamic light effects according to different program modes, washing programs and functional parameters.

6. The knob assembly for a washing machine according to claim 5, characterized in that, The controller is also configured as follows: When the knob body slides to switch program modes and rotates synchronously, the control knob display assembly simultaneously displays the parameter values ​​of the function parameters corresponding to the target program mode, thus enabling a preview of the function parameters; and / or, When the washing machine is in standby mode, the control knob display assembly and the light-up components are off; when a sliding signal is detected, the control knob display assembly is partially illuminated to display program mode information. When a rotation signal is detected, the control knob display assembly lights up in full to show washing program information; And / or, When the adjustment parameter corresponding to the rotation signal is detected to exceed the preset parameter range corresponding to the current washing program, a reverse damping control signal is generated to increase the rotational resistance of the knob body and control the luminous component to emit a warning light effect; and / or, The control component generates a flowing light effect corresponding to the sliding direction when the knob body slides; and / or, When the control knob body is rotated to adjust the function parameters, the brightness of the light-emitting component changes with the parameter value.

7. The knob assembly for a washing machine according to claim 3, characterized in that, Also includes: A limiter is provided corresponding to a preset sliding position. It is used to abut against the knob body when the knob body slides to the preset sliding position, so as to limit the knob body from continuing to slide. The position sensor, electrically connected to the controller, is used to generate an arrival signal and send it to the controller when the knob body slides to a preset sliding position.

8. The knob assembly for a washing machine according to claim 1, characterized in that, The program modes include a first program mode and a second program mode. The knob body corresponds to the first program mode when in the first position and the second program mode when in the second position. The knob assembly also includes: A mode display module is disposed on the substrate and is used to display indication information of the current program mode; wherein, the mode display module includes a first identifier and a second identifier, the first identifier is disposed corresponding to a first position and is used to indicate a first program mode; the second identifier is disposed corresponding to a second position and is used to indicate a second program mode; when the knob body is in the first position, the first identifier is exposed; when the knob body is in the second position, the second identifier is exposed.

9. A knob assembly for a washing machine, characterized in that, include: substrate; The knob body is located on the base plate and can rotate and slide relative to the base plate; The knob body allows users to switch program modes by rotating it and adjust the function parameters of the washing program within the current program mode by sliding it; or... The knob body allows you to select a washing program by sliding it and adjust the program's parameters by rotating it; or... The knob body allows you to select a washing program by rotating it and adjust the function parameters of the washing program by sliding it.

10. The knob assembly for a washing machine according to any one of claims 1 to 9, characterized in that, Also includes: A sliding base is provided on the substrate; A force feedback element is located between the knob body and the sliding base to provide different operating feel to the knob body at different sliding positions.

11. The knob assembly for a washing machine according to claim 10, characterized in that, Force feedback components include: A hydraulic rod, with one end connected to the knob body and the other end connected to a sliding base, is used to provide a damping force to the knob body that varies with the sliding position and / or sliding speed; or, An elastic element is connected to the knob body; wherein, the sliding base is provided with a guide rail, which extends non-linearly along the sliding direction of the knob body; the knob body drives the elastic element to move along the guide rail, thereby generating a damping force that varies with the sliding position when the knob body slides; or, The knob comprises a first magnetic clasp, a second magnetic clasp, and a third magnetic clasp. The first magnetic clasp is connected to the knob body. The second magnetic clasp is located on the sliding base, corresponding to a preset sliding position, and has the opposite magnetic properties to the first magnetic clasp. The third magnetic clasp is located on the sliding base, corresponding to a non-preset sliding position, and has the same magnetic properties as the first magnetic clasp. The first magnetic clasp moves with the knob body and is used to engage with the second magnetic clasp when the knob body slides to the preset sliding position to provide a positioning feel, and to repel the third magnetic clasp when the knob body slides to a non-preset sliding position to provide a damping feel.

12. The knob assembly for a washing machine according to claim 10, characterized in that, The controller is also electrically connected to a force feedback device, and the controller is further configured to: The damping force of the force feedback element is dynamically adjusted according to the program mode currently in which the knob is located, where different program modes correspond to different damping forces; or, the damping force of the force feedback element is dynamically adjusted according to the washing program currently in which the knob is located, where different washing programs correspond to different damping forces; and / or, The damping force of the force feedback component is dynamically adjusted based on the sliding speed of the knob body. Specifically, the damping force is increased when the sliding speed is greater than or equal to a preset speed threshold, and decreased when the sliding speed is less than the preset speed threshold; and / or, The damping force of the force feedback component is dynamically adjusted according to the frequency of use of each program mode, wherein the damping force corresponding to the program mode with high usage frequency is less than the damping force corresponding to the program mode with low usage frequency; or, the damping force of the force feedback component is dynamically adjusted according to the frequency of use of each washing program, wherein the damping force corresponding to the washing program with high usage frequency is less than the damping force corresponding to the washing program with low usage frequency.

13. The knob assembly for a washing machine according to any one of claims 1 to 9, characterized in that, Also includes: The function display module, located on the base plate, is used to display the function parameter type corresponding to the current washing program and is configured to allow selection of different function parameter types via touch.

14. A washing machine, characterized in that, include: Box; The knob assembly for a washing machine as described in any one of claims 1 to 13 is disposed in the housing.

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