Knob device and electrical equipment

Abstract

The utility model discloses a knob device and electrical equipment, and relates to the technical field of electrical equipment control. The knob is rotationally matched with the base; the feedback assembly comprises a triggering piece and an abutting piece, one of the triggering piece and the abutting piece is connected with the rotary knob, and the other one of the triggering piece and the abutting piece is connected with the base, so that when the rotary knob rotates relative to the base, the triggering piece and the abutting piece can rotate relative to each other; the triggering piece comprises a special-shaped rotating body, the special-shaped rotating body is provided with a special-shaped curved surface, the abutting piece can abut against the special-shaped curved surface in an elastic deformation mode, and when the triggering piece and the abutting piece rotate relatively, the special-shaped curved surface extrudes the abutting piece, so that the triggering piece and the abutting piece rotate relatively. And therefore, the propping piece is elastically deformed and generates non-uniformly changed feedback force. According to the technical scheme of the utility model, clear feedback can be provided for a user, so that the user can perceive the adjusting quantity, and the knob can be quickly positioned to a target position.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical control, and particularly relates to a knob device and an electrical appliance. Background Art

[0002] A knob is a common control unit and is widely used in various household appliances for adjusting temperature, brightness, water output, etc. According to requirements, the knob can be continuously rotated or positioned and rotated. Currently, most of the knobs applied to shower devices are continuously rotated knobs. Such knobs can achieve stepless adjustment, but cannot provide clear feedback. When actually used by users, it is difficult to perceive the adjustment amount, and the knob cannot be quickly positioned to the target position. Summary of the Utility Model

[0003] The main purpose of the utility model is to propose a knob device and an electrical appliance, aiming to provide clear feedback to users when they adjust the knob, enabling users to perceive the adjustment amount, so as to quickly position the knob to the target position.

[0004] To achieve the above object, the knob device proposed by the utility model includes:

[0005] A base;

[0006] A knob, rotatably engaged with the base; and

[0007] A feedback assembly, including a trigger member and an abutting member, one of the trigger member and the abutting member is connected to the knob, and the other is connected to the base, so that when the knob rotates relative to the base, the trigger member and the abutting member can rotate relative to each other; the trigger member includes a special-shaped rotating body, the special-shaped rotating body has a special-shaped curved surface, the abutting member is elastically deformably abutted against the special-shaped curved surface, and when the trigger member and the abutting member rotate relative to each other, the special-shaped curved surface squeezes the abutting member, so that the abutting member undergoes elastic deformation and generates a feedback force with non-uniform change.

[0008] In an embodiment, the special-shaped rotating body further includes a plurality of convex teeth arranged at intervals along the extending direction of the special-shaped curved surface, and a card slot is formed between two adjacent convex teeth, and the end of the abutting member is used for snap-fitting with the card slot.

[0009] In an embodiment, the outer peripheral surface of the special-shaped rotating body forms the special-shaped curved surface, the special-shaped curved surface includes a convex surface, and the middle of the convex surface protrudes toward the side away from the rotation center of the special-shaped rotating body.

[0010] In an embodiment, the special-shaped curved surface further includes a concave surface, the concave surface and the convex surface are arranged along the circumferential direction of the special-shaped rotating body, and the concave surface is configured to form a groove for the end of the abutting member to be snap-fitted.

[0011] In one embodiment, the projection formed by the special-shaped rotating body on a plane perpendicular to its axial direction has an intersecting major axis and minor axis. The convex surface is formed on at least one side of the special-shaped rotating body along the direction of its minor axis, and the concave surface is formed on at least one side of the special-shaped rotating body along the direction of its major axis.

[0012] In one embodiment, the convex surface includes a first convex surface and a second convex surface oppositely arranged along the minor axis direction of the special-shaped rotating body, and the concave surface includes a first concave surface and a second concave surface oppositely arranged along the major axis direction of the special-shaped rotating body. The first concave surface, the first convex surface, the second concave surface, and the second convex surface are sequentially connected end to end along the circumferential direction of the special-shaped rotating body.

[0013] In one embodiment, the first convex surface and the second convex surface are symmetrically arranged in the minor axis direction of the special-shaped rotating body;

[0014] And / or, the first concave surface and the second concave surface are symmetrically arranged in the major axis direction of the special-shaped rotating body.

[0015] In one embodiment, the projection formed by the concave surface on a plane perpendicular to the axial direction of the special-shaped rotating body is a concave profile line;

[0016] The minimum value of the radius of the concave profile line is greater than the radius dimension of the end of the abutting member for engaging with the groove;

[0017] And / or, the concave profile line has a first end point and a second end point, and the included angle formed by sequentially connecting the first end point, the rotation center of the special-shaped rotating body, and the second end point does not exceed 90 degrees.

[0018] In one embodiment, the concave surface includes a first concave surface and a second concave surface oppositely arranged along the radial direction of the special-shaped rotating body. The first concave surface defines a first groove, and the second concave surface defines a second groove;

[0019] The abutting member is provided on one side of the special-shaped rotating body. When the knob rotates relative to the base to a preset position, the end of the abutting member is engaged in the first groove or the second groove;

[0020] Or, the abutting members are respectively provided on opposite sides of the special-shaped rotating body. When the knob rotates relative to the base to a preset position, the end of one of the abutting members is engaged in the first groove, and the end of the other abutting member is engaged in the second groove.

[0021] In one embodiment, the knob is fixedly connected to the trigger member, the abutting member is elastically telescopically mounted on the base, and when the knob rotates relative to the base, the trigger member is driven to rotate relative to the abutting member.

[0022] In one embodiment, the trigger member further includes a boss provided on the side of the special-shaped rotating body close to the knob. First positioning ribs and second positioning ribs with different specifications are respectively provided on both sides of the boss. The knob has a first positioning groove adapted to the first positioning rib and a second positioning groove adapted to the second positioning rib. The first positioning rib is inserted into the first positioning groove, and the second positioning rib is inserted into the second positioning groove;

[0023] And / or, the trigger member further includes a boss provided on the side of the special-shaped rotating body close to the knob. The knob has at least two connecting portions extending towards the special-shaped rotating body, and the at least two connecting portions enclose a receiving space for receiving the boss. The special-shaped rotating body is provided with assembling portions connected to the connecting portions one by one.

[0024] In one embodiment, the base includes a base body and a mounting portion. The mounting portion is provided on the side of the base body facing the trigger member. The trigger member is provided with a slot for inserting the mounting portion, and the trigger member is rotatably sleeved around the outer periphery of the mounting portion.

[0025] In one embodiment, the abutting member includes a top rod and an elastic member. The top rod is axially movably mounted on the base. One end of the top rod abuts against the special-shaped rotating body. The elastic member is elastically abutted between the top rod and the base and can elastically deform along the axial direction of the top rod.

[0026] In one embodiment, the base includes a first limiting portion and a second limiting portion which are opposite and spaced apart. The top rod includes a first rod segment, a shoulder segment and a second rod segment connected in sequence along the axial direction. The free end of the first rod segment abuts against the special-shaped rotating body. The first limiting portion supports the first rod segment, the second limiting portion supports the second rod segment, and the shoulder segment is located between the first limiting portion and the second limiting portion.

[0027] In one embodiment, the knob device further includes a fixing member. The fixing member and the base enclose a receiving cavity for receiving a part of the top rod. The receiving cavity has through holes for the first rod segment and the second rod segment to pass through respectively. The shoulder segment and the elastic member are arranged in the receiving cavity.

[0028] In one embodiment, the knob device also includes a panel, the panel is provided with a through hole, the base is fixed to one side of the panel, one end of the knob close to the base passes through the through hole and rotates with the base, the other end of the knob protrudes from the side of the panel away from the base, the end of the knob close to the base is provided with a buckle body, the buckle body is buckled with the side of the panel facing the base, and the side of the panel facing the base is provided with a stop portion, and the stop portion is used to cooperate with the buckle body to limit the circumferential rotation of the knob.

[0029] In one embodiment, the outer peripheral surface of the special-shaped rotating body forms the special-shaped curved surface, and the special-shaped curved surface has a concave surface, and the concave surface is configured to form a groove for the end of the abutment to be clamped, and the buckle body is arranged corresponding to the concave surface, and the projections of the buckle body and the concave surface in the radial direction of the knob at least partially overlap.

[0030] In one embodiment, the knob device further includes a permanent magnet disposed on the knob and a magnetic induction module disposed on the base, wherein the permanent magnet can generate a non-uniform magnetic field as the knob rotates, and the magnetic induction module is used to sense magnetic field changes and output corresponding electrical signals.

[0031] In one embodiment, the knob is provided with an installation cavity, the installation cavity has an installation opening for the permanent magnet to be installed, the permanent magnet is fixed in the installation cavity, and the knob device further includes an end cover provided on the installation opening;

[0032] And / or, the base is provided with a mounting groove, the mounting groove has a mounting slot for the magnetic induction module to be installed, the magnetic induction module is at least partially accommodated in the mounting groove, and a limiting buckle for limiting the magnetic induction module is provided on one side of the base close to the mounting slot.

[0033] The utility model also provides an electrical device, comprising the knob device as described above.

[0034] In one embodiment, the electrical device has a water system, the water system is provided with a flow regulating valve, and the knob device is used to control the flow regulating valve to regulate the flow of the water system.

[0035] The technical solution of the present utility model is provided with a feedback component between the base and the knob. The feedback component includes a trigger member and an abutting member. The trigger member includes a special-shaped rotating body with a special-shaped curved surface, and the abutting member is elastically deformably abutted against the special-shaped curved surface. One of the trigger member and the abutting member is connected to the knob, and the other is connected to the base. When the knob rotates relative to the base, the knob can drive the trigger member or the abutting member to rotate, so that relative rotation can occur between the trigger member and the abutting member. When relative rotation occurs between the trigger member and the abutting member, the special-shaped curved surface of the special-shaped rotating body presses the abutting member. Since the special-shaped curved surface has non-uniform undulating changes, the abutting member can undergo non-uniform elastic deformation and generate a non-uniformly changing feedback force. In this way, clear feedback can be provided to the user during the process of the user adjusting the knob, and the user can perceive the adjustment amount according to the change of the feedback force, so as to quickly position the knob to the target position. And this knob device can achieve multiple feedbacks of touch and sound sense relying on the mechanical structure, without relying on additional electronic units, which is simple, reliable and low-cost. Description of the Drawings

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0037] Figure 1 Structural schematic diagram of an embodiment of the knob device provided by the present utility model;

[0038] Figure 2 For Figure 1 Cross-sectional structural schematic diagram of the first state of the knob device in

[0039] Figure 3 For Figure 1 Cross-sectional structural schematic diagram of the second state of the knob device in

[0040] Figure 4 For Figure 1 Exploded structural schematic diagram of the knob device in

[0041] Figure 5 Structural schematic diagram of an embodiment of the knob of the knob device provided by the present utility model;

[0042] Figure 6 Structural schematic diagram of an embodiment of the trigger member of the knob device provided by the present utility model;

[0043] Figure 7 For Figure 6 Top view of the trigger member in

[0044] Figure 8 is Figure 6 a schematic structural view of another perspective of the trigger member in

[0045] Figure 9 a schematic structural view of an embodiment of the base of the knob device provided by the present utility model;

[0046] Figure 10 a schematic structural view of another embodiment of the knob device provided by the present utility model;

[0047] Figure 11 is Figure 10 a schematic exploded view of the knob device in

[0048] Explanation of the reference numerals in the drawings:

[0049] 100, knob device; 10, base; 11, base body; 12, installation part; 13, support rib; 14, first limiting part; 15, second limiting part; 16, clamping part; 17, installation groove; 18, limiting buckle; 20, knob; 21, first positioning groove; 22, second positioning groove; 23, connecting part; 24, installation cavity; 25, buckle body; 26, step surface; 30, trigger member; 31, special-shaped rotating body; 311, special-shaped curved surface; 311a, first convex surface; 311b, second convex surface; 311c, first concave surface; 311d, second concave surface; 3111, first groove; 3112, second groove; 312, convex tooth; 313, assembly part; 32, convex platform; 33, first positioning rib; 34, second positioning rib; 35, slot; 36, flange; 40, abutting member; 41, ejector rod; 411, first rod section; 412, shoulder section; 413, second rod section; 42, elastic member; 50, fixing member; 60, permanent magnet; 70, magnetic induction module; 80, end cover; 90, panel; 91, through hole; 92, stop part.

[0050] The realization, functional features and advantages of the purpose of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0051] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0052] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, then such directional indications are only used to explain the relative positional relationship, movement conditions, etc. between components in a certain specific posture. If this specific posture changes, then the directional indications will also change accordingly.

[0053] In addition, if there are descriptions such as "first", "second", etc. involved in the embodiments of the present utility model, then such descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or the solution where both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0054] A knob is a common control unit and is widely used in various household electrical appliances for regulating temperature, brightness, water output, etc. According to requirements, the knob can be continuously rotated or positioned and rotated. Currently, most of the knobs applied to shower devices are continuously rotated knobs. Such knobs can achieve stepless regulation, but cannot provide clear feedback. When users actually use them, it is difficult to perceive the adjustment amount and it is impossible to quickly position the knob to the target position.

[0055] The present utility model provides a knob device 100. By optimizing the design of the structure of the knob device 100, when a user adjusts the knob 20, it can provide clear feedback to the user, enabling the user to perceive the adjustment amount, so as to quickly position the knob 20 to the target position.

[0056] The knob device 100 is applied to electrical equipment, including but not limited to regulating the temperature, brightness, water output, etc. of electrical equipment. For example, the knob device 100 can be applied to electrical equipment with a water circuit system to adjust the water temperature or flow rate of the water circuit system through the knob device 100. Another example is that the knob device 100 can be applied to electrical equipment with a light source to adjust the brightness, color temperature, etc. of the light source through the knob device 100. Of course, the knob device 100 can also be applied to other types of electrical equipment, which will not be listed one by one here. Hereinafter, mainly taking the knob device 100 used to realize the water output adjustment of a shower device as an example for illustration.

[0057] Please refer to Figures 1 to 3, in an embodiment of the present utility model, the knob device 100 includes a base 10 and a knob 20, and the knob 20 is rotatably engaged with the base 10. In practical applications, the base 10 remains fixed, and by screwing the knob 20 to rotate the knob 20 relative to the base 10, the user can rotate the knob 20 to a preset target position according to the target adjustment amount to adjust the target parameter of the electrical equipment (such as the water output of a shower device). Among them, the base 10 constitutes the main support structure of the knob device 100, and the base 10 can be an integral structure or can also be formed by combining multiple components. The knob 20 and the base 10 can be rotationally connected directly or indirectly so that the knob 20 can rotate relative to the base 10. Optionally, the knob 20 is cylindrical to provide the user with a better feel when screwing. Of course, the knob 20 can also be set as a square column, a sphere or other special-shaped bodies. Optionally, the outer peripheral surface of the knob 20 is provided with a marking portion (such as scale lines or convex ribs, etc.) so that the user can clearly understand the rotation position of the knob 20.

[0058] In order for the user to perceive the adjustment amount and thus quickly position the knob 20 to the target position, please refer to Figure 2 and Figure 6 , in this embodiment, the knob device 100 further includes a feedback component, and the feedback component includes a trigger member 30 and an abutting member 40. One of the trigger member 30 and the abutting member 40 is connected to the knob 20, and the other is connected to the base 10 so that when the knob 20 rotates relative to the base 10, the trigger member 30 and the abutting member 40 can rotate relative to each other; the trigger member 30 includes a special-shaped rotating body 31, the special-shaped rotating body 31 has a special-shaped curved surface 311, and the abutting member 40 is elastically deformably abutted against the special-shaped curved surface 311. When the trigger member 30 and the abutting member 40 rotate relative to each other, the special-shaped curved surface 311 presses the abutting member 40 to cause the abutting member 40 to elastically deform and generate a non-uniformly changing feedback force.

[0059] In this embodiment, the feedback component includes a trigger member 30 and an abutting member 40. One of the trigger member 30 and the abutting member 40 is connected to the knob 20, and the other is connected to the base 10; for example, the trigger member 30 can be connected to the knob 20, and the abutting member 40 can be installed on the base 10. In this way, when the knob 20 rotates relative to the base 10, the knob 20 can drive the trigger member 30 to rotate together, so that the trigger member 30 can rotate relative to the abutting member 40. Another example is that the trigger member 30 can be installed on the base 10, and the abutting member 40 can be installed on the knob 20. In this way, when the knob 20 rotates relative to the base 10, the knob 20 can drive the abutting member 40 to rotate together, so that the abutting member 40 can rotate relative to the trigger member 30.

[0060] The trigger member 30 includes a special-shaped rotating body 31, and the special-shaped rotating body 31 has a special-shaped curved surface 311. Among them, the special-shaped curved surface 311 refers to an irregular curved surface, and the special-shaped curved surface 311 is usually formed by connecting curved surfaces with various bending degrees and bending directions, so that the special-shaped curved surface 311 shows non-uniform undulating changes. Among them, there are various formation positions of the special-shaped curved surface 311 on the special-shaped rotating body 31. For example, the outer peripheral surface of the special-shaped rotating body 31 can be formed with the special-shaped curved surface 311; for another example, the axial end surface of the special-shaped rotating body 31 is formed with the special-shaped curved surface 311; for still another example, when the special-shaped rotating body 31 is arranged in a ring shape, the special-shaped curved surface 311 can be formed on the inner ring surface and / or the outer ring surface of the special-shaped rotating body 31. For example, the orthographic projection of the special-shaped rotating body 31 in the axial direction can be oval, olive-shaped, star-shaped or other irregular shapes, etc., and the outer peripheral surface of the special-shaped rotating body 31 is formed with the special-shaped curved surface 311.

[0061] The abutting member 40 is elastically deformably abutted against the special-shaped curved surface 311. Among them, the number of the abutting members 40 can be one, two or more. Optionally, two abutting members 40 are provided, and the two abutting members 40 are symmetrically arranged on the radial two sides of the special-shaped rotating body 31. The abutting member 40 can be a single component made of an elastic material, or a combined component formed by a rigid member (such as a push rod 41) and an elastic member 42, as long as it is ensured that when the trigger member 30 rotates relative to the abutting member 40, the abutting member 40 can generate elastic deformation. Optionally, the abutting member 40 is elastically telescopically abutted against the special-shaped curved surface 311. It can be understood that after the abutting member 40 generates elastic deformation, the abutting member 40 has a tendency to recover elastic deformation, and thus can generate a reverse elastic feedback force. The vibration feeling generated by this elastic feedback force enables the user to feel a sense of blockage and frictional sound, and obtain tactile and acoustic feedback. And because the special-shaped curved surface 311 has non-uniform undulating changes, the abutting member 40 can generate a non-uniformly changing feedback force, so that the user can feel different feedbacks, and the user can sense the adjustment amount according to the change of the feedback force, so as to quickly position the knob 20 to the target position. When the user has used the knob 20 with a feedback function for a long time, the knob 20 can be accurately adjusted to the target position by action inertia. And the knob device 100 can realize multiple tactile and acoustic feedbacks by relying on a mechanical structure, without relying on an additional electronic unit, which is simple, reliable and low in cost.

[0062] It can be understood that, according to the different positions where the special-shaped curved surface 311 is formed on the special-shaped rotating body 31, correspondingly, there are various matching methods between the abutting member 40 and the special-shaped rotating body 31. For example, when the outer peripheral surface of the special-shaped rotating body 31 constructs the special-shaped curved surface 311, the abutting member 40 can abut against the outer peripheral side of the special-shaped rotating body 31; for another example, when the axial end face of the special-shaped rotating body 31 constructs the special-shaped curved surface 311, the abutting member 40 can abut against the axial side of the special-shaped rotating body 31; for still another example, when the special-shaped rotating body 31 is arranged in a ring shape and the inner ring surface of the special-shaped rotating body 31 constructs the special-shaped curved surface 311, the abutting member 40 can be placed in the inner cavity of the special-shaped rotating body 31 and abut against the inner peripheral side of the special-shaped rotating body 31.

[0063] The technical solution of the present utility model is provided with a feedback component between the base 10 and the knob 20. The feedback component includes a trigger member 30 and an abutting member 40. The trigger member 30 includes a special-shaped rotating body 31, and the special-shaped rotating body 31 has a special-shaped curved surface 311. The abutting member 40 can be elastically deformed and abut against the special-shaped curved surface 311. One of the trigger member 30 and the abutting member 40 is connected to the knob 20, and the other is connected to the base 10. When the knob 20 rotates relative to the base 10, the knob 20 can drive the trigger member 30 or the abutting member 40 to rotate, so that a relative rotation can be generated between the trigger member 30 and the abutting member 40. When the trigger member 30 and the abutting member 40 rotate relative to each other, the special-shaped curved surface 311 of the special-shaped rotating body 31 presses against the abutting member 40. Since the special-shaped curved surface 311 has non-uniform undulating changes, the abutting member 40 can undergo non-uniform elastic deformation and generate a non-uniformly changing feedback force. In this way, clear feedback can be provided to the user during the process of the user adjusting the knob 20, and the user can sense the adjustment amount according to the change of the feedback force, so as to quickly position the knob 20 to the target position. And this knob device 100 can achieve multiple tactile and acoustic feedbacks relying on the mechanical structure, without relying on additional electronic units, which is simple, reliable and low-cost.

[0064] As Figure 6 shown, in an embodiment, the special-shaped rotating body 31 further includes a plurality of convex teeth 312 arranged at intervals along the extending direction of the special-shaped curved surface 311. A card slot is formed between two adjacent convex teeth 312, and the end of the abutting member 40 is used for clamping and cooperating with the card slot.

[0065] In this embodiment, the special-shaped rotating body 31 can be set as a special-shaped gear with a plurality of convex teeth 312. A plurality of convex teeth 312 are also arranged at intervals along the extending direction of the special-shaped curved surface 311 of the special-shaped rotating body 31. When the special-shaped rotating body 31 rotates relative to the abutting member 40, the collision between the convex teeth 312 and the abutting member 40 can also generate a clearer vibration feedback, enabling the user to more clearly feel the blocking sensation and friction sound, obtaining a clearer tactile and acoustic feedback, and further enabling the user to perceive the adjustment amount according to the change of the feedback force, so as to quickly and accurately position the knob 20 to the target position. When the knob 20 rotates to the preset position, the end of the abutting member 40 is located in the card slot between the two convex teeth 312, and the abutting member 40 can be limited by the convex teeth 312 on both sides, so that the knob 20 can only hover at several determined positions, defining the adjustment gears.

[0066] To avoid the user from feeling a stuck sensation when adjusting the knob 20, optionally, the outer surface of the convex tooth 312 is smoothly connected to the special-shaped curved surface 311. Optionally, the outer peripheral surface of the special-shaped rotating body 31 forms the special-shaped curved surface 311, and a plurality of convex teeth 312 are arranged at intervals along the circumferential direction of the special-shaped rotating body 31. Optionally, the convex tooth 312 is set as a convex rib extending along the axial direction of the special-shaped rotating body 31.

[0067] In one embodiment, the outer peripheral surface of the special-shaped rotating body 31 forms the special-shaped curved surface 311, and the special-shaped curved surface 311 includes a convex surface, and the middle part of the convex surface protrudes toward the side away from the rotation center of the special-shaped rotating body 31.

[0068] In this embodiment, the number of convex surfaces can be one, two or more. When the number of convex surfaces is multiple (i.e., two or more), the multiple convex surfaces can be symmetrically arranged or asymmetrically arranged, and the shapes of the multiple convex surfaces can be the same or different, which are not specifically limited herein. The middle part of the convex surface protrudes toward the side away from the rotation center of the special-shaped rotating body 31. When the abutting member 40 moves along the convex surface, the convex surface squeezes the abutting member 40, enabling the abutting member 40 to generate non-uniform elastic deformation, and further generating a non-uniformly changing feedback force.

[0069] In one embodiment, the special-shaped curved surface 311 further includes a concave surface, and the concave surface and the convex surface are arranged along the circumferential direction of the special-shaped rotating body 31, and the concave surface defines a groove for the end of the abutting member 40 to be clamped.

[0070] In this embodiment, the number of concave surfaces can be one, two or more. When the number of concave surfaces is multiple (i.e., two or more), the multiple concave surfaces can be symmetrically arranged or asymmetrically arranged, and the shapes of the multiple concave surfaces can be the same or different, which are not specifically limited herein. The concave surfaces and the convex surfaces are arranged along the circumferential direction of the special-shaped rotating body 31. Optionally, the special-shaped curved surface 311 has multiple convex surfaces and multiple concave surfaces, and the convex surfaces and the concave surfaces are alternately arranged along the circumferential direction of the special-shaped rotating body 31. The concave surface is configured to form a groove for the end of the abutting member 40 to be clamped. Thus, when the abutting member 40 moves a certain distance along the convex surface, the end of the abutting member 40 can slide into the groove, and the abutting member 40 can be limited by the groove wall to make the knob 20 hover. In practical applications, it can be set that when the knob 20 is in the initial position and the maximum adjustment amount, the end of the abutting member 40 is located in the groove. At this time, the elastic deformation amount (i.e., the compression amount) of the abutting member 40 is the smallest. When the knob 20 starts from the initial position or the maximum adjustment amount position, a relatively large external force is required to make the end of the abutting member 40 slide out of the groove. In this way, a distinct tactile feedback can be effectively provided.

[0071] As Figure 6 and Figure 7 shown, in one embodiment, the projection formed by the special-shaped rotating body 31 on a plane perpendicular to its axial direction has an intersecting major axis and minor axis. The special-shaped rotating body 31 is formed with a convex surface on at least one side along its minor axis direction, and a concave surface on at least one side along its major axis direction.

[0072] In this embodiment, the projection formed by the special-shaped rotating body 31 on a plane perpendicular to its axial direction has an intersecting major axis and minor axis, such that the axial projection of the special-shaped rotating body 31 generally presents an olive shape or an oval shape that is thicker in the middle and thinner at both ends, that is, there are variations in the diameter length of the special-shaped rotating body 31 in its circumferential direction. The special-shaped curved surface 311 includes a convex surface located on at least one side in the minor axis direction of the special-shaped rotating body 31, and a concave surface located on at least one side in the major axis direction of the special-shaped rotating body 31. Among them, there are various combinations of the number of convex surfaces and concave surfaces and their arrangement forms along the circumferential direction of the special-shaped rotating body 31. For example, a convex surface is provided on one side of the special-shaped rotating body 31 in its minor axis direction, and a concave surface is provided on one side in its major axis direction. At this time, one convex surface and one concave surface are arranged along the circumferential direction of the special-shaped rotating body 31. Or, convex surfaces are provided on both sides of the special-shaped rotating body 31 in its minor axis direction, and a concave surface is provided on one side in its major axis direction. At this time, two convex surfaces and one concave surface are arranged along the circumferential direction of the special-shaped rotating body 31, and the concave surface is located between the two convex surfaces. Or, a convex surface is provided on one side of the special-shaped rotating body 31 in its minor axis direction, and concave surfaces are provided on both sides in its major axis direction. At this time, one convex surface and two concave surfaces are arranged along the circumferential direction of the special-shaped rotating body 31, and the convex surface is located between the two concave surfaces. Or, convex surfaces are provided on both sides of the special-shaped rotating body 31 in its minor axis direction, and concave surfaces are provided on both sides in its major axis direction. At this time, there are two concave surfaces and two convex surfaces, and the convex surfaces and concave surfaces are alternately arranged along the circumferential direction of the special-shaped rotating body 31.

[0073] As Figure 7 shown, in one embodiment, the convex surface includes a first convex surface 311a and a second convex surface 311b that are oppositely arranged in the minor axis direction of the special-shaped rotating body 31, the concave surface includes a first concave surface 311c and a second concave surface 311d that are oppositely arranged in the major axis direction of the special-shaped rotating body 31, and the first concave surface 311c, the first convex surface 311a, the second concave surface 311d, and the second convex surface 311b are arranged along the circumferential direction of the special-shaped rotating body 31 Connected end to end in sequence.

[0074] In this embodiment, the first convex surface 311a and the second convex surface 311b are respectively located on both sides of the minor axis direction of the special-shaped rotating body 31, and the middle parts of the first convex surface 311a and the second convex surface 311b bulge toward the side away from each other. The first concave surface 311c and the second concave surface 311d are respectively located on both sides of the major axis direction of the special-shaped rotating body 31. The first concave surface 311c is configured with a first groove 3111 for the end of the abutting member 40 to be clamped, and the second concave surface 311d is configured with a second groove 3112 for the end of the abutting member 40 to be clamped. The first concave surface 311c, the first convex surface 311a, the second concave surface 311d, and the second convex surface 311b are sequentially connected end to end along the circumferential direction of the special-shaped rotating body 31. Optionally, the first groove 3111 and the second groove 3112 are adapted to the shape of the end of the abutting member 40 facing the special-shaped rotating body 31. For example, the first groove 3111 and the second groove 3112 can be designed as arc-shaped grooves, V-shaped grooves, or other shapes.

[0075] When the abutting member 40 moves along the first convex surface 311a or the second convex surface 311b, the first convex surface 311a or the second convex surface 311b squeezes the abutting member 40, so that the abutting member 40 can produce non-uniform elastic deformation, and then produce a feedback force with non-uniform change. Taking the cooperation between the abutting member 40 and the first convex surface 311a as an example, when the abutting member 40 slides in the extending direction of the first convex surface 311a, the elastic deformation amount of the abutting member 40 shows a trend of increasing first and then decreasing. When the abutting member 40 is located at the most convex position of the first convex surface 311a, its elastic deformation amount reaches the maximum. Optionally, a plurality of convex teeth 312 are arranged at intervals and evenly along the extending direction of the first convex surface 311a, and a plurality of convex teeth 312 are arranged at intervals and evenly along the extending direction of the second convex surface 311b, so that when the abutting member 40 moves relative to the first convex surface 311a or the second convex surface 311b, it can be clamped in the card slot between any two adjacent convex teeth 312 to make the knob 20 hover. When the knob 20 is at the initial position and the maximum adjustment amount, the end of the abutting member 40 is located in the first groove 3111 or the second groove 3112. At this time, the elastic deformation amount (i.e., the compression amount) of the abutting member 40 is the smallest. When the knob 20 starts from the initial position or the maximum adjustment amount position, a relatively large external force is required to make the end of the abutting member 40 slide out of the first groove 3111 or the second groove 3112. In this way, a distinguishable tactile feedback can be effectively provided.

[0076] Optionally, the first concave surface 311c, the first convex surface 311a, the second concave surface 311d, and the second convex surface 311b are smoothly and transitionally connected in sequence to ensure that the abutting member 40 can smoothly slide out of the first groove 3111 or the second groove 3112 and avoid jamming. Optionally, the parts where the first concave surface 311c, the first convex surface 311a, the second concave surface 311d, and the second convex surface 311b are connected to each other are transitioned by arcs.

[0077] Among them, the first convex surface 311a and the second convex surface 311b can be symmetrically arranged or asymmetrically arranged in the minor axis direction of the special-shaped rotating body 31. The first concave surface 311c and the second concave surface 311d can be symmetrically arranged or asymmetrically arranged in the major axis direction of the special-shaped rotating body 31.

[0078] Optionally, the first convex surface 311a and the second convex surface 311b are opposite and symmetrically arranged in the minor axis direction of the special-shaped rotating body 31. And / or, the first concave surface 311c and the second concave surface 311d are opposite and symmetrically arranged in the major axis direction of the special-shaped rotating body 31. In this way, it is beneficial to simplify the shape structure of the special-shaped rotating body 31 and facilitate production and manufacturing.

[0079] To ensure more stable clamping fit between the groove formed by the concave surface and the abutting member, as Figure 7 shown, in one embodiment, the projection of the concave surface on the plane perpendicular to the axial direction of the special-shaped rotating body 31 is a concave profile; the minimum value of the radius of the concave profile is greater than the radius of the end of the abutting member 40 for clamping with the groove.

[0080] In this embodiment, as Figure 7 shown, taking the first concave surface 311c as an example, the projection of the first concave surface 311c on the plane perpendicular to the axial direction of the special-shaped rotating body 31 is a first concave profile. The first concave profile is arranged in an arc shape. The center of the arc O1 of the first concave profile is located on the side of the first concave surface 311c away from the rotation center O of the special-shaped rotating body 31. Among them, the connection line between O1 and O coincides with the major axis of the special-shaped rotating body 31. The distance from any point on the first concave profile to its center of the arc O1 is the radius r of the first concave profile. Among them, the minimum value of the radius r of the first concave profile is greater than the radius dimension of the end of the abutting member 40 for clamping with the first groove 3111. In this way, it can be ensured that when the end of the abutting member 40 is clamped in the first groove 3111, the first concave surface can completely wrap the end of the abutting member 40, making the clamping fit between the first groove 3111 and the abutting member 40 more stable. Only when sufficient external force is applied can the end of the abutting member 40 slide out of the first groove 3111, so as to avoid the accidental sliding of the abutting member 40 out of the first groove 3111 in case of accidental collision, thereby improving the use reliability of the knob device 100. For example, in the following embodiment, the abutting member 40 includes a top rod 41. The top rod 41 includes a first rod section 411, a shoulder section 412, and a second rod section 413 connected in sequence along the axial direction. The free end of the first rod section 411 abuts against the special-shaped rotating body 31. Then the minimum value of the radius of the first concave profile is greater than the radius of the first rod section 411. The design of the second concave surface 311d is similar to that of the first concave surface 311c and will not be elaborated here.

[0081] As Figure 7As shown, in one embodiment, the projection of the concave surface on a plane perpendicular to the axis of the special-shaped rotating body 31 is a concave profile line; the concave profile line has a first end point and a second end point, and the included angle formed by sequentially connecting the first end point, the rotation center of the special-shaped rotating body 31, and the second end point does not exceed 90 degrees.

[0082] In this embodiment, taking the first concave surface 311c as an example, the projection of the first concave surface 311c on a plane perpendicular to the axis of the special-shaped rotating body 31 is a first concave profile line. The first concave profile line is arranged in an arc shape. The first concave profile line has a first end point A and a second end point B. The included angle formed by sequentially connecting the first end point A, the rotation center O of the special-shaped rotating body 31, and the second end point B is α, then α ≤ 90°. The design of the second concave surface 311d is similar to that of the first concave surface 311c, and will not be elaborated here. In this way, the proportion of the first concave surface 311c and / or the second concave surface 311d in the entire special-shaped curved surface 311 is not too large, so as to ensure that the first convex surface 311a and / or the second convex surface 311c can occupy as much proportion as possible on the special-shaped curved surface 311, so as to ensure that the abutting member 30 has sufficient movement stroke to widen the adjustment range of the knob 20.

[0083] In one embodiment, the concave surface includes a first concave surface 311c and a second concave surface 311d that are oppositely arranged along the radial direction of the special-shaped rotating body 31. The first concave surface 311c defines a first groove 3111, and the second concave surface 311d defines a second groove 3112. For example, the first concave surface 311c and the second concave surface 311d are arranged on both sides of the major axis direction of the special-shaped rotating body 31. Correspondingly, a first groove 3111 and a second groove 3112 for the end of the abutting member 40 to be clamped are respectively formed on both sides of the major axis direction of the special-shaped rotating body 31. The number of the abutting members 40 can be set to one or more according to actual needs.

[0084] For example, in one implementation, an abutting member 40 is provided on one side of the special-shaped rotating body 31. When the knob 20 rotates relative to the base 10 to a preset position, the end of the abutting member 40 is clamped in the first groove 3111 or the second groove 3112.

[0085] In this embodiment, the number of the abutting members 40 is one. When the knob 20 rotates, the abutting member 40 can be moved along the special-shaped curved surface 311 so that the abutting member 40 can be switched between the first groove 3111 and the second groove 3112. For example, when the knob 20 is in the initial position, the end of the abutting member 40 is clamped in the first groove 3111. When the knob 20 rotates to the maximum adjustment amount position, the end of the abutting member 40 is clamped in the second groove 3112.

[0086] Also for example, as Figure 2As shown, in another embodiment, abutting members 40 are respectively provided on opposite sides of the special-shaped rotating body 31. When the knob 20 rotates relative to the base 10 to a preset position, the end of one of the abutting members 40 is clamped in the first groove 3111, and the end of the other abutting member 40 is clamped in the second groove 3112.

[0087] In this embodiment, the preset position can be the initial position and the maximum adjustment amount position. There are two abutting members 40. When the knob 20 is at the initial position and the maximum adjustment amount, the ends of the two abutting members 40 are respectively located in the first groove 3111 and the second groove 3112. At this time, the elastic deformation amount (i.e., the compression amount) of the abutting member 40 is the smallest. When the knob 20 starts from the initial position or the maximum adjustment amount position, a relatively large external force is required to slide the ends of the abutting members 40 out of the first groove 3111 and the second groove 3112. In this way, a distinguishable tactile feedback can be effectively provided. Moreover, by providing two abutting members 40, when the knob 20 is at the initial position and the maximum adjustment amount, the ends of the two abutting members 40 are respectively located in the first groove 3111 and the second groove 3112, so that the knob 20 can hover more stably at the initial position and the maximum adjustment amount position.

[0088] As Figure 2 shown, in one embodiment, the knob 20 is fixedly connected to the trigger member 30, and the abutting member 40 is elastically telescopically installed on the base 10. When the knob 20 rotates relative to the base 10, the trigger member 30 is driven to rotate relative to the abutting member 40.

[0089] In this embodiment, the knob 20 and the trigger member 30 can be of an integral structure or a split structure and then assembled. Among them, the knob 20 and the trigger member 30 are connected and fixed by, but not limited to, clamping, fastening with fasteners, bonding and other methods. The abutting member 40 is elastically telescopically installed on the base 10, and one end of the abutting member 40 in its telescopic direction abuts against the special-shaped surface 311 of the special-shaped rotating body 31. Thus, when the knob 20 rotates relative to the base 10, the knob 20 can drive the trigger member 30 to rotate together, so that a relative movement is generated between the trigger member 30 and the abutting member 40. The special-shaped surface 311 of the special-shaped rotating body 31 presses the abutting member 40, so that the abutting member 40 can produce a non-uniform elastic compression deformation, and then a reverse non-uniformly changing elastic feedback force can be generated. The vibration feeling generated by this elastic feedback force enables the user to feel a sense of blockage and frictional sound, and obtain tactile and acoustic feedback.

[0090] As Figure 5 and Figure 6As shown, in one embodiment, the trigger 30 further includes a boss 32 provided on the side of the special-shaped rotating body 31 close to the knob 20. On both sides of the boss 32, there are respectively a first positioning rib 33 and a second positioning rib 34 with different specifications. The knob 20 has a first positioning groove 21 adapted to the first positioning rib 33 and a second positioning groove 22 adapted to the second positioning rib 34. The first positioning rib 33 is inserted into the first positioning groove 21, and the second positioning rib 34 is inserted into the second positioning groove 22.

[0091] In this embodiment, the boss 32 is located in the middle of the special-shaped rotating body 31 and protrudes toward the side close to the knob 20. The boss 32 includes, but is not limited to, being set as a cylindrical shape, a square column shape or other special-shaped structures. The first positioning rib 33 and the second positioning rib 34 are respectively provided on both sides of the boss 32 along the radial direction of the knob 20. The specifications of the first positioning rib 33 and the second positioning rib 34 are different. Here, the different specifications can be that their shapes are different, or their sizes are different, that is, the first positioning rib 33 and the second positioning rib 34 are asymmetric structures. Correspondingly, the knob 20 has a first positioning groove 21 adapted to the first positioning rib 33 and a second positioning groove 22 adapted to the second positioning rib 34. In this way, when assembling the knob 20 and the trigger 30, only by inserting the first positioning rib 33 into the first positioning groove 21 and inserting the second positioning rib 34 into the second positioning groove 22 can the assembly of the two be achieved, otherwise the assembly cannot be carried out, thereby realizing the anti-fooling function during assembly. For example, both the first positioning rib 33 and the second positioning rib 34 are strip-shaped and extend along the axial direction of the special-shaped rotating body 31. The width of the first positioning rib 33 is different from the width of the second positioning rib 34. Correspondingly, the groove width of the first positioning groove 21 is adapted to the width of the first positioning rib 33, and the groove width of the second positioning groove 22 is adapted to the width of the second positioning rib 34.

[0092] As Figure 3 , Figure 5 and Figure 6 As shown, in one embodiment, the trigger 30 further includes a boss 32 provided on the side of the special-shaped rotating body 31 close to the knob 20. The knob 20 has at least two connecting portions 23 extending toward the special-shaped rotating body 31. The at least two connecting portions 23 enclose a receiving space for the boss 32 to be received. The special-shaped rotating body 31 is provided with an assembling portion 313 connected to the connecting portions 23 one by one.

[0093] In this embodiment, the boss 32 is located in the middle of the special-shaped rotating body 31 and protrudes toward the side close to the knob 20. The boss 32 includes, but is not limited to, being set in a cylindrical shape, a square columnar shape, or other special-shaped structures. The knob 20 includes a body and at least two connecting parts 23 provided at the bottom of the body. The special-shaped rotating body 31 is provided with fitting parts 313 corresponding to the connecting parts 23 one by one. When the knob 20 is assembled with the trigger 30 in place, the connecting parts 23 of the knob 20 are connected and fixed to the fitting parts 313 of the special-shaped rotating body 31, and the boss 32 is arranged in the accommodating space, making the assembly of the knob 20 and the trigger 30 more stable and reliable. Optionally, the connecting parts 23 are columnar and extend toward the special-shaped rotating body 31. The connecting parts 23 and the fitting parts 313 are correspondingly provided with connecting holes for inserting fasteners (such as screws, bolts, etc.). The fitting parts 313 and the connecting parts 23 can be locked and fixed by fasteners. Of course, the connecting parts 23 and the fitting parts 313 can also be connected and fixed by means such as snap connection and interference fit.

[0094] Please refer to Figure 2 、 Figure 8 and Figure 9 , in an embodiment, the base 10 includes a base body 11 and a mounting part 12. The mounting part 12 is arranged on the side of the base body 11 facing the trigger 30. The trigger 30 is provided with a slot 35 for inserting the mounting part 12, and the trigger 30 is rotatably sleeved around the mounting part 12.

[0095] In this embodiment, the trigger 30 has a slot 35 that is open toward the base 10. The mounting part 12 of the base 10 is inserted into the slot 35, so that the mounting part 12 can support the knob 20 and the trigger 30, making the assembly of the three more stable and reliable. And the trigger 30 can rotate relative to the mounting part 12, thus not affecting the rotation of the knob 20 driving the trigger 30 relative to the base 10. Optionally, the trigger 30 includes a special-shaped rotating body 31 and a boss 32 arranged on the side of the special-shaped rotating part facing the knob 20. A slot 35 is formed inside the boss 32. The slot 35 extends along the height direction of the boss 32 and penetrates through the side of the special-shaped rotating body 31 close to the base 10. Optionally, the boss 32 includes a top wall, an outer ring wall and an inner ring wall extending from the top wall toward the base 10. The outer ring wall surrounds the periphery of the inner ring wall, and a ring-shaped slot 35 is formed between the outer ring wall and the inner ring wall. Correspondingly, the mounting part 12 is arranged in a hollow cylindrical shape and is inserted between the outer ring wall and the inner ring wall of the boss 32 to ensure the assembly stability.

[0096] Please refer to Figure 2 、 Figure 8 and Figure 9, in one embodiment, the base 10 further includes a support rib 13 provided on the side of the seat body 11 facing the trigger member 30. At least one circle of support ribs 13 is provided around the periphery of the mounting portion 12. The support ribs 13 are used to support the special-shaped rotating body 31. In this embodiment, by supporting the special-shaped rotating body 31 with the support ribs 13, the contact area between the special-shaped rotating body 31 and the base 10 can be reduced, so as to reduce the frictional resistance when the special-shaped rotating body 31 rotates. Among them, the number of support ribs 13 can be adaptively set according to the cross-sectional area of the special-shaped rotating body 31 to ensure a stable supporting effect on the special-shaped rotating body 31. Exemplarily, two circles of support ribs 13 are provided around the periphery of the mounting portion 12, and the two circles of support ribs 13 are arranged at intervals.

[0097] As Figure 2 and Figure 9 shown, in one embodiment, the trigger member 30 further includes a flange 36 provided on the side of the special-shaped rotating body 31 facing the seat body 11. The flange 36 surrounds and forms a guiding inlet for the mounting portion 12 to be inserted into the slot 35.

[0098] As Figure 2 shown, in one embodiment, the abutting member 40 includes a push rod 41 and an elastic member 42. The push rod 41 is axially movably mounted on the base 10. One end of the push rod 41 abuts against the special-shaped rotating body 31. The elastic member 42 is elastically abutted between the push rod 41 and the base 10 and can elastically deform along the axis of the push rod 41.

[0099] In this embodiment, the push rod 41 is axially movably mounted on the base 10, that is, the push rod 41 can move relative to the base 40 along the axis direction of the push rod 41 under the action of an external force. When the special-shaped rotating body 31 rotates relative to the abutting member 40, the special-shaped curved surface 311 squeezes the end of the push rod 41, and then can push the push rod 41 to move axially. During the movement of the push rod 41, the elastic member 42 will be compressed, causing the elastic member 42 to elastically deform. The vibration sensation generated by the reaction force of the elastic member 42 enables the user to feel the blocking sensation and frictional sound, and obtain tactile and acoustic feedback. Among them, the elastic member 42 includes but is not limited to a spring, an elastic rubber column, or other elastic structures. Optionally, a spherical contact head is formed at the end of the push rod 41 in contact with the special-shaped rotating body 31.

[0100] As Figure 2 and Figure 4 shown, in one embodiment, the base 10 includes a first limiting portion 14 and a second limiting portion 15 that are opposite and spaced apart. The push rod 41 includes a first rod segment 411, a shoulder segment 412, and a second rod segment 413 that are sequentially connected along the axis. The free end of the first rod segment 411 abuts against the special-shaped rotating body 31. The first limiting portion 14 supports the first rod segment 411. The second limiting portion 15 supports the second rod segment 413. The shoulder segment 412 is located between the first limiting portion 14 and the second limiting portion 15.

[0101] In this embodiment, the cross-sectional dimension of the shoulder section 412 is larger than those of the first rod section 411 and the second rod section 413. Optionally, the elastic member 42 is sleeved around the second rod section 413, and the two ends of the elastic member 42 are elastically abutted against the shoulder section 412 and the second limiting portion 15 respectively. For example, the elastic member 42 can be a spring sleeved around the second rod section 413. The second rod section 413 can play a role in installing and fixing the elastic member 42 and can also play a certain guiding role in the telescopic deformation of the elastic member 42. When the triggering member 30 rotates relative to the abutting member 40, it can squeeze the ejector rod 41, so that the ejector rod 41 moves linearly along the axial direction. The shoulder of the ejector rod 41 applies a force to the elastic member 42, so that the elastic member 42 undergoes compressive deformation. Furthermore, the elastic member 42 can generate a reverse force, and the vibration sensation generated by the reaction force of the elastic member 42 enables the user to feel a sense of blockage and frictional sound, obtaining tactile and acoustic feedback. The first limiting portion 14 and the second limiting portion 15 can support the first rod section 411 and the second rod section 413 of the ejector rod 41, and can also limit the moving range of the elastic member 42 and the shoulder through the first limiting portion 14 and the second limiting portion 15. Optionally, the first limiting portion 14 has a first support groove for accommodating the first rod section 411, and the second limiting portion 15 has a second support groove for accommodating the second rod section 413. For example, the first rod section 411 and the second rod section 413 are cylindrically arranged. Correspondingly, the first support groove and the second support groove can be arc-shaped grooves.

[0102] As Figure 2 、 Figure 4 and Figure 9 shown, in one embodiment, the knob device 100 further includes a fixing member 50. The fixing member 50 and the base 10 enclose a receiving cavity for partially accommodating the ejector rod 41. The receiving cavity has through holes for the first rod section 411 and the second rod section 413 to pass through respectively. The shoulder section 412 and the elastic member 42 are arranged in the receiving cavity.

[0103] In this embodiment, the fixing member 50 and the base 10 can be assembled by, but not limited to, snap-fitting, bonding, screwing, etc., as long as it is ensured that the fixing member 50 and the base 10 can enclose to form a receiving cavity for partially receiving the ejector rod 41. Optionally, the base 10 has a snap-fitting portion 16 that is snap-fitted with the fixing member 50. The fixing member 50 has a hollow housing structure that is open towards the base 10. The base 10 is provided with the snap-fitting portion 16, and the fixing member 50 is snap-fitted with the snap-fitting portion 16 to achieve the detachable connection between the fixing member 50 and the base 10. Through the cooperation of the fixing member 50 and the base 10, the installation and disassembly of the abutting member 40 can be facilitated. The fixing member 50 can limit the movement of the ejector rod 41 and the elastic member 42 in the up and down direction, and can guide the movement of the ejector rod 41 and the elastic member 42 in the axial direction. Optionally, the base 10 includes a base body 11 and a snap-fitting portion 16 provided on the side of the base body 11 facing the abutting member 40. The snap-fitting portion 16 includes two elastic buckles that are opposite and spaced apart, and the fixing member 50 is snap-fitted between the two elastic buckles.

[0104] As Figure 2 and Figure 4 shown, in one embodiment, the outer peripheral surface of the special-shaped rotating body 31 forms a special-shaped curved surface 311. The special-shaped curved surface 311 has a concave surface, and the concave surface defines a groove for snap-fitting the end of the abutting member 40. The buckle body 25 is correspondingly arranged with the concave surface, and the projection of the buckle body 25 and the concave surface in the radial direction of the knob 20 at least partially overlaps.

[0105] In this embodiment, the number and position of the buckle body 25 and the concave surface are correspondingly arranged, and the projection of the buckle body 25 and the concave surface in the radial direction of the knob 20 at least partially overlaps. Through the cooperation of the buckle body 25 and the stop portion 92, and through the cooperation of the groove formed by the concave surface and the abutting member 40, the maximum rotation position of the knob 20 can be restricted. Through the dual limiting effect, it can be ensured that when one of them fails, the other can continue to play a limiting role to ensure the use reliability of the knob device 100. Optionally, the special-shaped curved surface 311 has a first concave surface 311c and a second concave surface 311d that are oppositely arranged in the radial direction. The outer peripheral surface of the end of the knob 20 close to the base 10 is provided with two buckle bodies 25 that are oppositely arranged in the radial direction. One of the buckle bodies 25 is correspondingly arranged with the first concave surface 311c, and the projection of the buckle body 25 and the first concave surface 311c in the radial direction of the knob 20 at least partially overlaps. The other buckle body 25 is correspondingly arranged with the second concave surface 311d, and the projection of the buckle body 25 and the second concave surface 311d in the radial direction of the knob 20 at least partially overlaps.

[0106] As Figure 10 and Figure 11As shown, in one embodiment, the knob device 100 also includes a panel 90, the panel 90 is provided with a through hole 91, the base 10 is fixed to one side of the panel 90, the end of the knob 20 close to the base 10 passes through the through hole 91 and rotates with the base 10, the other end of the knob 20 protrudes from the side of the panel 90 away from the base 10, the end of the knob 20 close to the base 10 is provided with a buckle body 25, the buckle body 25 is buckled with the side of the panel 90 facing the base 10, and the side of the panel 90 facing the base 10 is provided with a stop portion 92, and the stop portion 92 is used to cooperate with the buckle body 25 to limit the circumferential rotation of the knob 20.

[0107] In this embodiment, buckle bodies 25 are respectively provided on opposite sides of one end of the knob 20 close to the base 10, and the buckle bodies 25 can produce elastic deformation. During assembly, the end of the knob 20 provided with the buckle body 25 is pressed into the side of the panel 90 close to the base 10 through the through hole 91 of the panel 90, so that the knob 20 and the base 10 can be rotated and matched. The base 10 can be connected and fixed to the panel 90 by fastener connection, snap connection, etc. In this way, the knob 20, the panel 90 and the base 10 can be assembled as a whole, and the knob 20 can be rotated relative to the panel 90 and the base 10. Through the snap connection between the buckle body 25 and the panel 90, the axial displacement of the knob 20 can be limited to prevent the knob 20 from falling out of the through hole 91. In addition, a stopper 92 is provided on the side of the panel 90 facing the base 10. For example, the stopper 92 can be a convex rib provided on the periphery of the through hole 91. When the knob 20 is rotated to a preset position, one of the buckle bodies 25 is limitedly matched with the stopper 92, thereby limiting the circumferential rotation of the knob 20. For example, when the knob 20 starts to rotate from the initial position and the unidirectional rotation reaches 180°, the stopper 92 will abut against the buckle body 25 on one side of the knob 20, and the knob 20 cannot be turned in the original direction. This structure can be used to limit the circumferential rotation of the knob 20 and prompt the user that the adjustment range has reached the maximum value.

[0108] Based on the above embodiments, Figure 3 As shown, in one embodiment, the knob device 100 also includes a permanent magnet 60 provided on the knob 20, and a magnetic induction module 70 provided on the base 10. The permanent magnet 60 can generate a non-uniform magnetic field as the knob 20 rotates. The magnetic induction module 70 is used to sense changes in the magnetic field and output corresponding electrical signals.

[0109] In this embodiment, the knob device 100 is an electromagnetic induction knob 20, and a permanent magnet 60 is provided on the knob 20. The permanent magnet 60 remains relatively fixed with respect to the knob 20 and can be driven to rotate together with the knob 20 when the knob 20 rotates. The permanent magnet 60 is designed to have a structure that can generate a non-uniformly changing magnetic field. For example, the permanent magnet 60 can be arranged in a T-shaped structure or other special-shaped structures. The magnetic induction module 70 is fixed to the base 10. The magnetic induction module 70 contains electronic components and control circuits that can sense magnetic field changes. When the knob 20 drives the permanent magnet 60 to rotate, the magnetic induction module 70 can sense the change of magnetic induction lines in space and output corresponding control signals. Thus, when the user adjusts the knob 20, the knob 20 drives the permanent magnet 60 to rotate, and the permanent magnet 60 generates a non-uniform magnetic field. After the magnetic induction module 70 senses the magnetic field change, it can output corresponding electrical signals to regulate target parameters such as the water output, brightness, and temperature of the electrical equipment. By using the special-shaped permanent magnet 60 to generate a non-uniform magnetic field as it rotates with the knob 20, the magnetic induction module 70 can be simplified, the volume can be reduced, and the cost can be lowered.

[0110] Among them, the permanent magnet 60 can be arranged inside the knob 20, or can be exposed outside the knob 20, or can be inserted through the surface of the knob 20, as long as it is ensured that the permanent magnet 60 remains relatively fixed with respect to the knob 20, that is, their relative positions remain stationary when the knob 20 rotates. There are various fixing methods for the permanent magnet 60 and the knob 20, including but not limited to using processes such as gluing, potting, screw fixing, snap fitting, and magnet injection molding and wrapping for fixing.

[0111] For the convenience of installing the permanent magnet 60, as Figure 2 and Figure 4 shown, in an embodiment, the knob 20 is provided with an installation cavity 24. The installation cavity 24 has an installation opening for the permanent magnet 60 to be inserted. The permanent magnet 60 is fixed inside the installation cavity 24. The knob device 100 further includes an end cap 80 covering the installation opening. In this embodiment, fixing the permanent magnet 60 inside the installation cavity 24 formed by enclosing the knob 20 and the end cap 80 can play roles such as waterproofing and dustproofing for the permanent magnet 60. Optionally, a stepped surface 26 is provided at one end of the knob 20 close to the installation opening, and the end cap 80 abuts against the stepped surface 26 and covers the installation opening. Among them, the knob 20 and the end cap 80 can be two separate entities or an integral entity.

[0112] For the convenience of installing the magnetic induction module 70, as Figure 3 and Figure 9As shown, in one embodiment, the base 10 is provided with a mounting groove 17, and the mounting groove 17 has a mounting groove for the magnetic induction module 70 to be installed. The magnetic induction module 70 is at least partially accommodated in the mounting groove 17, and a limiting buckle 18 for limiting the magnetic induction module 70 is provided on one side of the base 10 close to the mounting groove. In this embodiment, the side of the base 10 is provided with a mounting groove 17. During assembly, the magnetic induction module 70 is installed into the mounting groove 17 from the mounting groove. The limiting buckle 18 can limit the magnetic induction module 70 to prevent the magnetic induction module 70 from falling out of the mounting groove 17. In addition, the assembly structure is also convenient for removing the magnetic induction module 70 from the base 10.

[0113] The utility model also proposes an electrical device, which includes a knob device 100. The specific structure of the knob device 100 refers to the above-mentioned embodiment. Since the electrical device adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here. Among them, the knob device 100 includes but is not limited to being used to control the flow, temperature, brightness, etc. of the electrical device. For example, the knob device 100 can be applied to an electrical device with a water system to adjust the water temperature or flow of the water system through the knob device 100. For another example, the knob device 100 can be applied to an electrical device with a light source, and the brightness, color temperature, etc. of the light source can be adjusted through the knob device 100.

[0114] In one embodiment, the electrical device has a water system, and the water system is provided with a flow regulating valve. The knob device 100 is used to control the flow regulating valve to regulate the flow of the water system.

[0115] In this embodiment, when the user needs to adjust the flow rate of the water system (such as the water inlet flow rate or the water outlet flow rate), the knob 20 can be turned to drive the valve core of the flow control valve to move, so as to achieve the flow rate regulation of the water system. Optionally, when the knob device 100 is built with a permanent magnet 60 and a magnetic induction module 70, the flow control valve can be an electric control valve electrically connected to the magnetic induction module 70. When the user adjusts the knob 20, the knob 20 drives the permanent magnet 60 to rotate, and the permanent magnet 60 generates a non-uniform magnetic field. The magnetic induction module 70 can output a corresponding electrical signal after sensing the change in the magnetic field. The electrical signal is transmitted to the flow control valve, so that the flow control valve regulates the flow rate of the water system. Among them, the electrical equipment with a water system includes but is not limited to shower equipment, cleaning machines, water heaters, water purifiers, etc.

[0116] The above are only exemplary embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural transformation made under the technical concept of the present utility model by using the content of the specification and drawings of the present utility model, or any direct / indirect application in other related technical fields, is included in the patent protection scope of the present utility model.

Claims

1. A knob device, characterized in that, Comprising: A base; A knob rotatably engaged with the base; And A feedback assembly including a trigger member and an abutting member, one of the trigger member and the abutting member is connected to the knob, and the other is connected to the base, so that when the knob rotates relative to the base, the trigger member and the abutting member can rotate relative to each other; the trigger member includes a special-shaped rotating body having a special-shaped curved surface, and the abutting member is elastically deformably abutted against the special-shaped curved surface. When the trigger member and the abutting member rotate relative to each other, the special-shaped curved surface squeezes the abutting member, so that the abutting member undergoes elastic deformation and generates a non-uniformly changing feedback force.

2. The knob device according to claim 1, wherein The special-shaped rotating body further includes a plurality of convex teeth arranged at intervals along the extending direction of the special-shaped curved surface, and a card slot is formed between two adjacent convex teeth. The end of the abutting member is used for engaging with the card slot in a mating manner.

3. The knob device according to claim 1, characterized in that, The outer peripheral surface of the special-shaped rotating body forms the special-shaped curved surface, and the special-shaped curved surface includes a convex surface, and the middle of the convex surface protrudes toward the side away from the rotation center of the special-shaped rotating body.

4. The knob device according to claim 3, wherein, The special-shaped curved surface further includes a concave surface, and the concave surface and the convex surface are arranged circumferentially along the special-shaped rotating body. The concave surface is configured to form a groove for the end of the abutting member to be engaged.

5. The knob device according to claim 4, characterized in that, The projection of the special-shaped rotating body on a plane perpendicular to its axial direction has an intersecting major axis and minor axis. The convex surface is formed on at least one side of the special-shaped rotating body along its minor axis direction, and the concave surface is formed on at least one side of the special-shaped rotating body along its major axis direction.

6. The knob device according to claim 5, wherein, The convex surface includes a first convex surface and a second convex surface oppositely arranged along the minor axis direction of the special-shaped rotating body, and the concave surface includes a first concave surface and a second concave surface oppositely arranged along the major axis direction of the special-shaped rotating body. The first concave surface, the first convex surface, the second concave surface and the second convex surface are sequentially connected end to end along the circumferential direction of the special-shaped rotating body.

7. The knob device according to claim 6, characterized in that, The first convex surface and the second convex surface are symmetrically arranged in the minor axis direction of the special-shaped rotating body; And / or, the first concave surface and the second concave surface are symmetrically arranged in the major axis direction of the special-shaped rotating body.

8. The knob device according to claim 4, wherein, The projection of the concave surface on a plane perpendicular to the axial direction of the special-shaped rotating body forms a concave curve; The minimum value of the radius of the concave curve is greater than the radius dimension of the end of the abutting member for engaging with the groove; And / or, the concave curve has a first end point and a second end point, and the included angle formed by sequentially connecting the first end point, the rotation center of the special-shaped rotating body and the second end point does not exceed 90 degrees.

9. The knob device according to claim 4, wherein The concave surface includes a first concave surface and a second concave surface oppositely arranged along the radial direction of the special-shaped rotating body. The first concave surface is configured to form a first groove, and the second concave surface is configured to form a second groove; The abutting member is provided on one side of the special-shaped rotating body. When the knob rotates relative to the base to a preset position, the end of the abutting member is engaged in the first groove or the second groove. Alternatively, the abutting pieces are respectively provided on opposite sides of the special-shaped rotating body, and when the knob is rotated to a preset position relative to the base, an end of one of the abutting pieces is clamped in the first groove, and an end of the other abutting piece is clamped in the second groove.

10. The knob device according to claim 1, wherein, The knob is connected and fixed to the trigger member, and the resisting member is elastically and telescopically mounted on the base. When the knob rotates relative to the base, the trigger member is driven to rotate relative to the resisting member.

11. The knob device according to claim 10, characterized in that, The trigger member further comprises a boss provided on one side of the special-shaped rotating body close to the knob, and first and second positioning ribs of different specifications are respectively provided on both sides of the boss, and the knob has a first positioning groove adapted to the first positioning rib and a second positioning groove adapted to the second positioning rib, the first positioning rib is inserted into the first positioning groove, and the second positioning rib is inserted into the second positioning groove; And / or, the trigger member also includes a boss arranged on the side of the special-shaped rotating body close to the knob, the knob has at least two connecting parts extending toward the special-shaped rotating body, the at least two connecting parts are arranged to form an accommodating space for accommodating the boss, and the special-shaped rotating body is provided with an assembly part which is one-to-one connected to the connecting part.

12. The knob device according to claim 10, characterized in that, The base comprises a seat body and a mounting portion, wherein the mounting portion is arranged on a side of the seat body facing the trigger member, the trigger member is provided with a slot for inserting the mounting portion, and the trigger member is rotatably sleeved on the periphery of the mounting portion.

13. The knob device according to claim 10, wherein The push member includes a push rod and an elastic member. The push rod can be movably installed on the base along the axial direction. One end of the push rod pushes against the special-shaped rotating body. The elastic member elastically abuts between the push rod and the base and can produce elastic deformation along the axial direction of the push rod.

14. The knob device according to claim 13, wherein, The base includes a first limiting portion and a second limiting portion that are opposite to and spaced apart from each other, the top rod includes a first rod segment, a shoulder segment and a second rod segment that are sequentially connected along the axial direction, the free end of the first rod segment abuts against the special-shaped rotating body, the first limiting portion supports the first rod segment, the second limiting portion supports the second rod segment, and the shoulder segment is located between the first limiting portion and the second limiting portion.

15. The knob device according to claim 14, wherein The knob device also includes a fixing member, and the fixing member and the base are arranged to form a receiving cavity for partially receiving the top rod, the receiving cavity has through holes for respectively allowing the first rod segment and the second rod segment to pass through, and the shoulder segment and the elastic member are arranged in the receiving cavity.

16. The knob device according to claim 1, wherein The knob device also includes a panel, the panel is provided with a through hole, the base is fixed to one side of the panel, one end of the knob close to the base passes through the through hole and rotates with the base, the other end of the knob protrudes from the side of the panel away from the base, the end of the knob close to the base is provided with a buckle body, the buckle body is buckled with the side of the panel facing the base, and a stop portion is provided on the side of the panel facing the base, and the stop portion is used to cooperate with the buckle body to limit the circumferential rotation of the knob.

17. The knob device according to claim 16, characterized in that, The outer peripheral surface of the special-shaped rotating body forms the special-shaped curved surface, the special-shaped curved surface has a concave surface, the concave surface is configured to form a groove for the end of the abutting member to be clamped, the buckle body is arranged corresponding to the concave surface, and the projection of the buckle body and the concave surface in the radial direction of the knob at least partially overlaps.

18. The knob device according to any one of claims 1 to 17, characterized in that, The knob device further includes a permanent magnet provided on the knob and a magnetic induction module provided on the base. The permanent magnet can generate a non-uniform magnetic field as the knob rotates, and the magnetic induction module is used to sense the magnetic field change and output a corresponding electrical signal.

19. The knob device according to claim 18, wherein, The knob is provided with an installation cavity, the installation cavity has an installation opening for the permanent magnet to be inserted, the permanent magnet is fixed in the installation cavity, and the knob device further includes an end cover covering the installation opening. And / or, the base is provided with an installation groove, the installation groove has an installation groove opening for the magnetic induction module to be inserted, the magnetic induction module is at least partially accommodated in the installation groove, and a limiting buckle for limiting the magnetic induction module is provided on one side of the base close to the installation groove opening.

20. An electrical device, characterized in that, It includes the knob device according to any one of claims 1 to 19.

21. The electrical device according to claim 20, characterized in that, The electrical equipment has a water circuit system, the water circuit system is provided with a flow regulating valve, and the knob device is used to control the flow regulating valve to adjust the flow of the water circuit system.

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