A rotary knob switch assembly

Abstract

This application discloses a rotary switch assembly, including a mounting base, a micro switch, a rotary switch, and a rotary fixing member. The micro switch is fixed to the mounting base. The rotary switch has a trigger portion and rotating holes extending through both ends along the axial direction. The rotary fixing member is fixedly connected to the mounting base and together restricts the axial displacement of the rotary switch. The rotary fixing member has a rotating shaft, which pivotally engages with the rotating holes. When the rotary switch is rotated to the trigger position, it contacts the contact of the micro switch through the trigger portion. When the rotary switch is rotated to the standby position, the trigger portion disengages from the contact of the micro switch. In this application, the rotary switch achieves flexible rotation through the pivotal engagement of the rotating holes and the rotating shaft of the rotary fixing member. The rotary fixing member and the mounting base together restrict the axial displacement of the rotary switch, avoiding axial movement during use and improving the problem of decreased tactile feedback caused by axial misalignment in traditional mechanical knobs.

Description

Technical Field

[0001] This application relates to the field of ice dispensing switch technology for water purifiers, specifically to a rotary switch assembly. Background Technology

[0002] In water purifiers with ice-making functions, the ice-making function is typically controlled by a switch. Users can control the ice dispensing, adjust the amount of ice dispensed, or switch ice-making modes using the switch. The switch control for the ice-making function is mainly divided into electronic touch type and mechanical type.

[0003] Electronic touch switches mainly rely on electronic sensing to switch functions. Although their operation is relatively simple, they lack interactivity with the user. Users cannot get intuitive feedback through touch, and cannot accurately judge the operation status by feel like traditional knobs. Moreover, in some special situations, such as when fingers are wet or dirty, the accuracy of touch sensing will be affected, which will lead to operation errors and affect the user experience.

[0004] Mechanical switches, primarily push-button and rotary switches, offer operability, allowing users to adjust functions through direct operation. However, they also have several shortcomings. Traditional mechanical rotary switches often consist of a simple shaft and hole mating structure with almost no design to improve tactile feedback during rotation. This results in a very loose feel when rotating the knob, making it difficult for users to accurately control the force and angle of rotation. Furthermore, after prolonged use, due to the lack of effective limiting and protective measures, the shaft and hole are prone to wear due to frequent friction, leading to a gradual increase in clearance and axial misalignment, further reducing the rotational feel and affecting the normal use and accuracy of function adjustment. Mechanical push-button switches also have some problems. For example, the feel is often stiff, lacking elastic feedback. Users cannot intuitively judge the success of the operation through touch, easily leading to accidental or repeated presses, affecting the user experience.

[0005] Therefore, there is an urgent need for a rotary switch assembly with good tactile feedback, clear gear feedback, and stable structure to solve the technical problems existing in the rotary switches of current ice-making water purifiers. Utility Model Content

[0006] The purpose of this application is to solve the above-mentioned technical problems and provide a rotary switch assembly that improves the rotation feel and operating experience through limit design, flexible damping ring, and gear feedback.

[0007] The technical solution adopted in this application is as follows:

[0008] A rotary switch assembly includes a mounting base, a micro switch, a rotary switch, and a rotary fixing member. The micro switch is fixed to the mounting base. The rotary switch has a trigger portion and rotating holes extending through both ends along the axial direction. The rotary fixing member is fixedly connected to the mounting base and together restricts the axial displacement of the rotary switch. The rotary fixing member has a rotating shaft that pivotally engages with the rotating holes. When the rotary switch is rotated to the trigger position, it contacts the contact of the micro switch through the trigger portion. When the rotary switch is rotated to the standby position, the trigger portion disengages from the contact of the micro switch.

[0009] In this technical solution, the mounting base serves as the basic fixing component, supporting the micro switch, rotary switch, and rotary fixture, providing a stable mounting foundation for the entire assembly. The micro switch, fixed to the mounting base, interacts with the trigger part of the rotary switch to switch between the triggered and standby positions. This allows the rotary switch's rotation to correspond to specific functional changes, such as controlling the ice-making start and stop of the water purifier, or controlling the ice dispensing and stopping of the water purifier, ensuring accurate functional control. The rotary switch achieves flexible rotation through a pivot engagement between its rotating hole and the rotary fixture's shaft. Simultaneously, the rotary fixture and the mounting base together restrict the axial displacement of the rotary switch, preventing axial movement during use. This improves upon the problem of decreased tactile feedback caused by axial misalignment in traditional mechanical knobs, ensuring the overall stability of the rotary switch during rotation and preventing unnecessary shaking that could affect operation. Compared to the single pressing action of a push-button switch, rotational operation better suits user adjustment habits, especially when frequently switching ice-making states, providing smoother operation.

[0010] A flexible damping ring is provided between the rotating shaft and the inner wall of the rotating hole. The outer circumferential surface of the flexible damping ring is in elastic compression contact with the inner wall of the rotating hole. When the knob switch rotates around the rotating shaft, the flexible damping ring is compressed by the inner wall of the rotating hole to form frictional damping.

[0011] In this technical solution, when the rotary switch rotates around the pivot, the flexible damping ring is compressed to form frictional damping, which improves the rotation feel of the rotary switch. This allows users to feel appropriate resistance when turning the rotary switch, unlike the loose feel of traditional mechanical knobs. Instead, it allows for more delicate and stable control of the rotation angle and force, making the operation more controllable. At the same time, it can also reduce the possibility of excessive rotation of the rotary switch due to rapid rotation or accidental collisions, thus improving the user experience.

[0012] The rotating shaft is provided with an outwardly protruding outer limiting protrusion, and the rotary switch is provided with an inner limiting protrusion protruding into the rotating hole. The outer limiting protrusion and the inner limiting protrusion are arranged at intervals along the direction in which the rotating shaft passes through the rotating hole and form a limiting space that restricts the axial displacement distance of the flexible damping ring.

[0013] In this technical solution, the limiting space formed by the spaced outer and inner limiting protrusions effectively restricts the axial displacement of the flexible damping ring. This design ensures that the flexible damping ring remains in the correct position during use, preventing uneven wear, unstable damping effect, or even failure due to axial movement. This ensures the long-term stable performance of the damping function, providing a consistent and reliable damping feel with each rotation of the rotary switch, further improving the durability and operability of the entire rotary switch assembly.

[0014] The rotary switch has spaced-apart trigger position grooves and standby position grooves. The rotary switch fixing component is equipped with a position feedback component, which is radially movable along the rotary switch fixing component. The position feedback component and the rotary switch fixing component are connected by an elastic element. The elastic force of the elastic element causes the position feedback component to abut against the rotary switch. When the rotary switch is rotated to the trigger position, the position feedback component is engaged in the trigger position groove. When the rotary switch is rotated to the standby position, the position feedback component is engaged in the standby position groove.

[0015] In this technical solution, the trigger position groove and the standby position groove on the rotary switch cooperate with the movable position feedback component connected by an elastic element on the rotary switch fixing component. When the rotary switch is rotated to the trigger position or the standby position, the position feedback component can accurately engage in the corresponding groove. This not only provides the user with clear position feedback, allowing the user to intuitively know whether the rotary switch has been accurately adjusted to the desired function position through tactile feedback, but also the presence of the elastic element makes the position switching have a distinct tactile feedback, enhancing the accuracy of operation and human-computer interaction, and greatly improving the convenience of user operation and user experience.

[0016] The rotary switch includes a baffle surrounding the rotating hole, the rotary fixing member is provided with a guide shaft extending radially along the rotating shaft, the guide shaft is provided with a blind hole opening toward the baffle, the elastic member and the gear feedback member are disposed in the blind hole, and the trigger gear groove and the standby gear groove are disposed on the inner side of the baffle.

[0017] In this technical solution, the elastic element and the gear feedback element are reasonably set in the blind hole, and the trigger gear groove and the standby gear groove are arranged on the inner side of the baffle. This layout makes the whole structure more compact and reasonable, makes full use of the limited space, and also ensures the accuracy and stability of the gear feedback element when it is in motion, avoiding the inability of it to accurately fit into the groove due to external interference and other factors, and further optimizes the realization effect of the gear feedback function.

[0018] The rotary switch has a trigger position limiting surface and a standby position limiting surface distributed on both sides of the guide shaft. The rotation angle is limited by the trigger position limiting surface and the standby position limiting surface. The position where the trigger position limiting surface abuts against the guide shaft corresponds to the trigger position, and the position where the standby position limiting surface abuts against the guide shaft corresponds to the standby position.

[0019] In this technical solution, the rotation angle is limited by the contact between the guide shaft and the trigger position limit surface and the standby position limit surface, respectively. This clearly defines the rotation angle range corresponding to the trigger position and the standby position, which can prevent the knob switch from being rotated excessively and avoid damage to the components due to misoperation or excessive rotation angle. At the same time, it also ensures the accuracy of the knob switch when it is rotated to the corresponding function position each time, making function switching more reliable and further improving the stability and operation accuracy of the entire knob switch assembly.

[0020] The mounting base is provided with a gasket limiting groove, and a gasket is provided in the gasket limiting groove. The mounting base abuts against the rotary switch through the gasket to limit the axial displacement of the rotary switch.

[0021] In this technical solution, the gasket in the gasket limiting groove on the mounting base restricts the axial displacement of the rotary switch by abutting against it. On the one hand, it can play a buffering role, reducing the friction and collision caused by direct contact between the rotary switch and the mounting base. On the other hand, it can also more stably fix the axial position of the rotary switch, preventing axial movement during use, ensuring the smoothness of the rotary switch during rotation, and helping to improve the service life and operating feel of the entire rotary switch assembly.

[0022] The knob fixing component is provided with a limiting cover plate extending outward from the rotating axis, and the limiting cover plate is provided with a limiting rib, which abuts against and restricts the axial displacement of the knob switch.

[0023] In this technical solution, the limiting ribs on the limiting cover of the knob fixing component abut against the knob switch to limit its axial displacement. While ensuring effective restriction of axial displacement, it can effectively reduce the contact area, thereby reducing contact friction and avoiding situations such as jamming due to excessive contact area that affect the rotary switch's rotation feel. This makes the knob switch rotate more smoothly and further optimizes the operating experience.

[0024] The rotating shaft has a hollow structure, and fasteners are inserted inside the rotating shaft and fixedly connected to the mounting base.

[0025] In this technical solution, the rotating shaft adopts a hollow structure, which allows fasteners to be inserted into it and fixedly connected to the mounting base. This not only facilitates the assembly process and makes the installation operation more convenient and efficient, but also reduces the weight of the component to a certain extent, thereby reducing material costs. At the same time, it does not affect the function required for the rotating shaft to cooperate with other components, ensuring the rationality and economy of the entire rotary switch assembly structure.

[0026] At least one end of the rotating shaft is provided with a radial groove, and the mounting base is provided with a radial retaining rib that is adapted to the radial groove. The radial groove and the radial retaining rib cooperate to circumferentially limit the knob fixing member.

[0027] In this technical solution, the radial groove at the end of the rotating shaft cooperates with the matching radial retaining rib on the mounting base to achieve circumferential limiting of the knob fixing component. This ensures that the knob fixing component will not rotate arbitrarily in the circumferential direction during use, guarantees the relative position stability between the rotating shaft and the rotating hole, and avoids problems such as unstable rotation and functional failure of the knob switch due to circumferential loosening. This further enhances the stability and reliability of the entire knob switch assembly structure and ensures its long-term stable performance. Attached Figure Description

[0028] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0029] Figure 1 This is an exploded view of the rotary switch assembly provided in the embodiments of this application;

[0030] Figure 2 This is a cross-sectional view of the rotary switch assembly provided in the embodiment of this application under an exploded state;

[0031] Figure 3 Assembly of the rotary switch assembly provided in the embodiments of this application Figure 1 This indicates the state of the rotary switch in the triggered position;

[0032] Figure 4 Assembly of the rotary switch assembly provided in the embodiments of this application Figure 2 It shows the state of the rotary switch in the standby position;

[0033] Figure 5 This is a cross-sectional view of the rotary switch assembly provided in an embodiment of this application;

[0034] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0035] Figure 7This is a schematic diagram of the rotary switch provided in the embodiments of this application;

[0036] Figure 8 This is a schematic diagram of the structure of the mounting base provided in the embodiments of this application;

[0037] Figure 9 for Figure 8 Enlarged view at point B in the middle;

[0038] Figure 10 This is a schematic diagram of the structure of the knob fixing member provided in the embodiment of this application.

[0039] List of components and reference numerals:

[0040] 1 Mounting base, 11 Gasket limiting groove, 12 Positioning rib, 13 Radial retaining rib, 14 Mating hole;

[0041] 2 micro switches;

[0042] 3. Rotary switch, 31. Trigger part, 32. Rotary hole, 33. Inner limit protrusion, 34. Trigger position groove, 35. Standby position groove, 36. Barrier wall, 37. Trigger position limit surface, 38. Standby position limit surface.

[0043] 4. Knob fixing part, 41. Rotary shaft, 42. Outer limiting protrusion, 43. Guide shaft, 44. Blind hole, 45. Limiting cover plate, 46. Limiting rib, 47. Radial groove.

[0044] 5. Flexible damping rings;

[0045] 6-speed feedback device;

[0046] 7. Elastic components;

[0047] 8 gaskets;

[0048] 9. Fasteners. Detailed Implementation

[0049] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0050] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0051] Furthermore, it should be understood in the description of this application that the terms "upper," "lower," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," "lateral," and "longitudinal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0052] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0053] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0054] In the embodiments of this application, reference is made to Figures 1 to 10 As shown, a rotary switch assembly is provided. For ease of explanation and understanding, the following descriptions are based on the illustrated product structure. Of course, those skilled in the art will understand that the above structure is merely a specific example and illustrative illustration, and does not constitute a specific limitation on the technical solution provided in this application.

[0055] like Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 7 and Figure 10As shown, the rotary switch assembly includes a mounting base 1, a micro switch 2, a rotary switch 3, and a rotary fixing member 4. The micro switch 2 is fixed on the mounting base 1. The rotary switch 3 has a trigger part 31 and a rotating hole 32 extending through both ends along the axial direction. The rotary fixing member 4 is fixedly connected to the mounting base 1 and together restricts the axial displacement of the rotary switch 3. The rotary fixing member 4 has a rotating shaft 41, which pivotally engages with the rotating hole 32. When the rotary switch 3 is rotated to the trigger position, it contacts the contact of the micro switch 2 through the trigger part 31. When the rotary switch 3 is rotated to the standby position, the trigger part 31 disengages from the contact of the micro switch 2. Figure 3 The image shows the state of rotary switch 3 when rotated to the trigger position. Figure 4 The image shows the state of rotary switch 3 when rotated to the standby position.

[0056] Mounting base 1 serves as a basic fixing component, supporting micro switch 2, rotary switch 3, and knob fixing member 4, providing a stable mounting base for the entire assembly. In specific applications on water purifiers, mounting base 1 can be an independent component relative to other parts of the water purifier. It can be fixed to the base of the water purifier or other suitable components, solely for mounting micro switch 2, rotary switch 3, and knob fixing member 4. Alternatively, mounting base 1 can be an integrated component of the water purifier; for example, it can form part of the water purifier base, with micro switch 2, rotary switch 3, and knob fixing member 4 integrated with other components on that base. The micro switch 2 is fixed on the mounting base 1. Through its interaction with the trigger part 31 of the rotary switch 3, it switches between the trigger position and the standby position, allowing the rotation of the rotary switch 3 to correspond to specific functional changes. For example, it controls the ice-making start and stop of the water purifier (trigger position corresponds to ice making, standby position corresponds to stopping ice making), and controls the ice dispensing and stopping of ice dispensing (trigger position corresponds to ice dispensing, standby position corresponds to stopping ice dispensing), ensuring accurate function control. The rotary switch 3 pivots with the rotating shaft 41 of the knob fixing part 4 via the rotating hole 32, allowing for flexible rotation. Simultaneously, the knob fixing part 4 and the mounting base 1 together restrict the axial displacement of the rotary switch 3, preventing axial movement during use. This improves upon the problem of decreased tactile feedback caused by axial misalignment in traditional mechanical knobs, ensuring overall stability during rotation and preventing unnecessary shaking that could affect operation. Compared to the single pressing action of a button switch, rotational operation is more in line with user adjustment habits, especially when frequently switching ice-making states, providing smoother operation.

[0057] As a preferred embodiment of this application, such as Figure 1 and Figure 6As shown, a flexible damping ring 5 is provided between the rotating shaft 41 and the inner wall of the rotating hole 32. The outer circumferential surface of the flexible damping ring 5 is in elastic compression contact with the inner wall of the rotating hole 32. When the knob switch 3 rotates around the rotating shaft 41, the flexible damping ring 5 is compressed by the inner wall of the rotating hole 32, forming frictional damping, which specifically improves the defect of loose feel in traditional knob operation. When the user rotates, they can feel moderate resistance, which is neither too small to cause too random rotation (such as children accidentally turning too much), nor too large to affect the comfort of operation. In actual use, for example, when the user adjusts the ice making or dispensing, the damping can help perceive the rotation angle and avoid adjustment deviation due to vague feel; at the same time, the elastic compression of the flexible material (such as rubber) can absorb the slight vibration during the rotation process, making the rotation smoother and maintaining a stable feel even after long-term use, solving the problem of deterioration of feel after wear of traditional mechanical structures.

[0058] Furthermore, such as Figure 6 , Figure 7 and Figure 10 As shown, the rotating shaft 41 is provided with an outwardly protruding outer limiting protrusion 42, and the rotary switch 3 is provided with an inner limiting protrusion 33 protruding into the rotating hole 32. The outer limiting protrusion 42 and the inner limiting protrusion 33 are arranged at intervals along the direction in which the rotating shaft 41 passes through the rotating hole 32 and form a limiting space that restricts the axial displacement distance of the flexible damping ring 5. This can effectively limit the axial displacement distance of the flexible damping ring 5, ensuring that the flexible damping ring 5 is always in the appropriate position during use, avoiding problems such as uneven wear, unstable damping effect or even failure due to axial movement, ensuring the long-term stable performance of the damping function, so that the rotary switch 3 can obtain a consistent and reliable damping feel every time it is rotated, further improving the durability and operation performance of the entire rotary switch assembly. In addition, the outer limiting protrusion 42 and the inner limiting protrusion 33 are arranged at intervals along the direction in which the rotating shaft 41 passes through the rotating hole 32, which facilitates assembly. In actual assembly, the flexible damping ring 5 can be pre-fitted onto the rotating shaft 41, and then the rotating shaft 41 can be passed through the rotating hole 32. During the insertion process, the flexible damping ring 5 and the inner limiting protrusion 33 are prevented from interfering with each other.

[0059] As a preferred embodiment of this application, such as Figure 1 , Figure 6 and Figure 7As shown, the rotary switch 3 has spaced-apart trigger position grooves 34 and standby position grooves 35. A position feedback element 6 is mounted on the rotary switch fixing member 4. The position feedback element 6 is radially movable along the rotary switch fixing member 4. The position feedback element 6 and the rotary switch fixing member 4 are connected by an elastic element 7. The elastic force of the elastic element 7 causes the position feedback element 6 to abut against the rotary switch 3. When the rotary switch 3 is rotated to the trigger position, the position feedback element 6 engages in the trigger position groove 34; when the rotary switch 3 is rotated to the standby position, the position feedback element 6 engages in the standby position groove 35. The cooperation of the trigger position grooves 34 and standby position grooves 35 with the position feedback element 6 and the elastic element 7 provides the user with clear tactile feedback. When the knob switch 3 is rotated to the trigger position (e.g., the ice dispensing mode), the gear feedback element 6, under the action of the elastic element 7, engages with the trigger gear groove 34, and the user can feel a distinct "click." When rotated to the standby position (e.g., the stop ice dispensing mode), it engages with the standby gear groove 35, providing feedback again. This design solves the problem of no clear gear indication in traditional knob operation: users do not need to visually confirm, but can judge the current status by feel alone, especially in dimly lit kitchens or when holding items with both hands, enabling quick operation and reducing accidental touches. The elasticity of the elastic element 7 can be adjusted according to the usage scenario, ensuring clear feedback without requiring force, balancing ease of operation and accuracy.

[0060] Furthermore, such as Figure 6 , Figure 7 and Figure 10 As shown, the rotary switch 3 includes a baffle 36 surrounding the rotating hole 32. The knob fixing member 4 has a guide shaft 43 extending radially along the rotating shaft 41. The guide shaft 43 has a blind hole 44 opening towards the baffle 36. The elastic member 7 and the gear feedback member 6 are disposed within the blind hole 44. The trigger gear groove 34 and the standby gear groove 35 are disposed on the inner side of the baffle 36. The structural layout of the baffle 36, guide shaft 43, and blind hole 44 integrates the elastic member 7 and the gear feedback member 6 within the blind hole 44, with the grooves disposed on the inner side of the baffle 36, making the overall structure more compact. This fully utilizes the internal space of the rotary switch 3, avoiding dust accumulation or accidental activation caused by exposed components, making it particularly suitable for the humid environment of kitchen appliances such as water purifiers. In actual use, the guide shaft 43 provides stable guidance for the gear feedback member 6, ensuring its precise engagement with the groove. For example, when the user quickly rotates the knob switch 3, the gear feedback component 6 will not miss the groove due to shaking, ensuring the reliability of gear switching; at the same time, the built-in structure reduces component wear and extends service life.

[0061] Furthermore, such as Figure 7As shown, the rotary switch 3 has a trigger position limiting surface 37 and a standby position limiting surface 38 distributed on both sides of the guide shaft 43. These surfaces limit the rotation angle. The position where the trigger position limiting surface 37 abuts against the guide shaft 43 corresponds to the trigger position, and the position where the standby position limiting surface 38 abuts against the guide shaft 43 corresponds to the standby position. By abutting against the guide shaft 43, the trigger position limiting surface 37 and the standby position limiting surface 38 effectively define the boundaries of the two functional positions. When the user rotates to the trigger position, the trigger position limiting surface 37 abuts against the guide shaft 43, preventing further rotation and avoiding damage to internal components (such as the microswitch 2) due to excessive rotation. Similarly, the standby position limiting surface 38 prevents the rotary switch 3 from excessively rotating in the opposite direction. This design provides users with a stop point in actual operation. For example, when adjusting the ice dispensing mode, the resistance felt when rotating to the end can enhance the user's awareness of the limit position. Combined with the gear feedback, it forms a dual prompt, further improving the accuracy of operation.

[0062] As a preferred embodiment of this application, such as Figure 6 , Figure 8 and Figure 9 As shown, the mounting base 1 is provided with a gasket limiting groove 11, and a gasket 8 is provided in the gasket limiting groove 11. The mounting base 1 abuts against the rotary switch 3 through the gasket 8 to limit the axial displacement of the rotary switch 3. In a preferred embodiment, the gasket 8 can be made of a wear-resistant, self-lubricating material with a low coefficient of friction (such as silicone). On the one hand, it can play a buffering role, reducing the friction and collision caused by direct contact between the rotary switch 3 and the mounting base 1. On the other hand, it can also more stably fix the axial position of the rotary switch 3, preventing axial movement during use, ensuring the smoothness of the rotary switch 3 during rotation, and helping to improve the service life and operating feel of the entire rotary switch assembly. In actual use, when the user rotates the rotary switch 3, the buffering effect of the gasket 8 can reduce operating noise, while the stable axial limiting ensures that the knob will not loosen due to vibration (such as the slight vibration when the water purifier is working), maintaining the stability of the feel over long-term use. The gasket limiting groove 11 can be formed by the ribs on the mounting base 1. Figure 9 The diagram shows multiple positioning ribs 12 arranged circumferentially, which form a gasket limiting groove 11 to limit the radial displacement of the gasket 8.

[0063] As a preferred embodiment of this application, such as Figure 6 and Figure 10As shown, the knob fixing component 4 has a limiting cover plate 45 extending outward from the rotation shaft 41. The limiting cover plate 45 has a limiting rib 46, which abuts against and limits the axial displacement of the knob switch 3. The limiting rib 46 on the limiting cover plate 45 of the knob fixing component 4 abuts against the knob switch 3 to limit its axial displacement. While ensuring effective limitation of axial displacement, it can effectively reduce the contact area, thereby reducing contact friction and avoiding situations such as jamming caused by excessive contact area, which affects the rotation feel of the knob switch 3. This makes the knob switch 3 rotate more smoothly and further optimizes the operating experience. In a preferred embodiment, the surface of the limiting rib 46 can be a curved surface, which helps to form a line contact limit between the limiting rib 46 and the knob switch 3. Compared with surface contact, this greatly reduces the friction area and friction, making the knob switch 3 rotate more smoothly. For example, when the user operates with one hand, no excessive force is required to complete the rotation, which is especially suitable for the elderly or children.

[0064] As a preferred embodiment of this application, such as Figure 1 , Figure 2 , Figure 6 and Figure 9 As shown, the rotating shaft 41 has a hollow structure, and the fastener 9 passes through the rotating shaft 41 and is fixedly connected to the mounting base 1. In this technical solution, the rotating shaft 41 adopts a hollow structure, allowing the fastener 9 to pass through it and be fixedly connected to the mounting base 1. This not only facilitates the assembly process and makes the installation operation more convenient and efficient, but also allows for simple tightening of the fastener 9 (such as a screw) through the rotating shaft 41 during installation, eliminating the need for complex positioning. In actual production, this improves assembly efficiency and reduces costs. Furthermore, the hollow structure reduces the weight of the component to a certain extent, lowering material costs, while not affecting the functionality required for the rotating shaft 41 to work with other components, ensuring the rationality and economy of the entire rotary switch assembly structure.

[0065] Furthermore, such as Figure 9 and Figure 10 As shown, at least one end of the rotating shaft 41 is provided with a radial groove 47, and the mounting base 1 is provided with a radial retaining rib 13 adapted to the radial groove 47. The radial groove 47 and the radial retaining rib 13 cooperate to circumferentially limit the knob fixing member 4. Figure 10 The illustration shows an embodiment in which multiple radial grooves 47 are provided at the lower end of the rotating shaft 41. Multiple radial retaining ribs 13 are provided around the mating hole 14 (such as a screw hole) for mating with the fastener 9. The radial grooves 47 and the radial retaining ribs 13 cooperate to achieve circumferential limiting of the knob fixing part 4, which can ensure that the knob fixing part 4 will not rotate arbitrarily in the circumferential direction during use, and ensure the relative position stability between the rotating shaft 41 and the rotating hole 32. This avoids problems such as unstable rotation and functional failure of the knob switch 3 due to circumferential loosening, further enhancing the stability and reliability of the entire knob switch assembly structure and ensuring its long-term stable performance.

[0066] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0067] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0068] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A rotary switch assembly, characterized in that, include: Mounting base; A micro switch, wherein the micro switch is fixed on the mounting base; A rotary switch, wherein the rotary switch is provided with a trigger part and a rotating hole extending through both ends along the axial direction; A knob fixing member is fixedly connected to the mounting base and together restricts the axial displacement of the knob switch. The knob fixing member has a rotating shaft that pivotally engages with the rotating hole. When the rotary switch is rotated to the trigger position, the trigger part contacts the contact of the micro switch; when the rotary switch is rotated to the standby position, the trigger part disengages from the contact of the micro switch.

2. The knob switch assembly of claim 1, wherein A flexible damping ring is provided between the rotating shaft and the inner wall of the rotating hole. The outer circumferential surface of the flexible damping ring is in elastic compression contact with the inner wall of the rotating hole. When the knob switch rotates around the rotating shaft, the flexible damping ring is compressed by the inner wall of the rotating hole to form frictional damping.

3. The rotary switch assembly according to claim 2, characterized in that, The rotating shaft is provided with an outwardly protruding outer limiting protrusion, and the rotary switch is provided with an inner limiting protrusion protruding into the rotating hole. The outer limiting protrusion and the inner limiting protrusion are arranged at intervals along the direction in which the rotating shaft passes through the rotating hole and form a limiting space that restricts the axial displacement distance of the flexible damping ring.

4. The rotary switch assembly according to claim 1, characterized in that, The rotary switch is provided with a trigger position groove and a standby position groove arranged at intervals. The rotary fixing component is equipped with a position feedback component. The position feedback component is movable radially along the rotary fixing component. The position feedback component and the rotary fixing component are connected by an elastic component. The elastic force of the elastic component causes the position feedback component to abut against the rotary switch. When the rotary switch is rotated to the trigger position, the gear feedback element is engaged in the trigger gear groove; when the rotary switch is rotated to the standby position, the gear feedback element is engaged in the standby gear groove.

5. The rotary switch assembly according to claim 4, characterized in that, The rotary switch includes a baffle surrounding the rotating hole, the rotary fixing member is provided with a guide shaft extending radially along the rotating shaft, the guide shaft is provided with a blind hole opening toward the baffle, the elastic member and the gear feedback member are disposed in the blind hole, and the trigger gear groove and the standby gear groove are disposed on the inner side of the baffle.

6. The knob switch assembly of claim 5, wherein, The rotary switch has a trigger position limiting surface and a standby position limiting surface distributed on both sides of the guide shaft. The rotation angle is limited by the trigger position limiting surface and the standby position limiting surface. The position where the trigger position limiting surface abuts against the guide shaft corresponds to the trigger position, and the position where the standby position limiting surface abuts against the guide shaft corresponds to the standby position.

7. The rotary switch assembly according to claim 1, characterized in that, The mounting base is provided with a gasket limiting groove, and a gasket is provided in the gasket limiting groove. The mounting base abuts against the rotary switch through the gasket to limit the axial displacement of the rotary switch.

8. The rotary switch assembly according to claim 1, characterized in that, The knob fixing component is provided with a limiting cover plate extending outward from the rotating axis, and the limiting cover plate is provided with a limiting rib, which abuts against and restricts the axial displacement of the knob switch.

9. The rotary switch assembly according to claim 1, characterized in that, The rotating shaft has a hollow structure, and fasteners are inserted inside the rotating shaft and fixedly connected to the mounting base.

10. The rotary switch assembly according to claim 9, characterized in that, At least one end of the rotating shaft is provided with a radial groove, and the mounting base is provided with a radial retaining rib that is adapted to the radial groove. The radial groove and the radial retaining rib cooperate to circumferentially limit the knob fixing member.

Images