Rotating mechanism with feedback
By designing a rotating mechanism with elastic ball bearings and a subdivided structure, the problem of lack of actual angle reference in the feedback of existing rotating mechanisms is solved, achieving high-precision rotation angle synchronization with feedback, and the feedback angle is adjustable.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU ACTION ELECTRONICS JOINT STOCK
- Filing Date
- 2025-06-13
- Publication Date
- 2026-04-24
AI Technical Summary
The existing rotary mechanism's acoustic-tactile feedback lacks a reference for the actual rotation angle, resulting in low rotation angle accuracy, large play, and limited fixed stops.
The design incorporates a flexible ball bearing structure and a subdivided structure. The rotor rotation drives the ball bearing to slide, and the elasticity of the elastomer causes the ball bearing to generate mechanical vibration and sound feedback between the grooves and protrusions, ensuring that the rotation angle is synchronized with the feedback.
It achieves synchronization between rotation angle and feedback, improves rotation accuracy, solves the problem of misalignment, and allows adjustment of the rotation angle of feedback.
Smart Images

Figure CN224163930U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rotating mechanism technology, and in particular to a rotating mechanism with feedback. Background Technology
[0002] Existing rotary mechanisms are used in certain scenarios with sound or tactile feedback, such as knobs in car center consoles and car air conditioning systems.
[0003] The rotary mechanism with acoustic-tactile feedback uses the sound and touch of the encoder, and the sound and touch generated by the rotation angle do not have an actual rotation angle reference.
[0004] Some existing small household appliances use feedback-based rotary mechanisms that generate sound and tactile feedback when a spring meshes with other structures. However, this feedback has problems such as large play and low rotation angle accuracy. Other feedback-based rotary mechanisms used in small household appliances use ratchet mechanisms to provide feedback adjustment or indication mechanisms when a certain position is reached. These structures generally only have 5 to 6 positions, and their rotation angles are fixed. Utility Model Content
[0005] To solve the above problems, this utility model provides a rotary mechanism with feedback, which is designed with an elastic bead structure and a subdivided structure with grooves and protrusions arranged alternately. The rotation of the rotor drives the bead to slide along the subdivided structure. Utilizing elasticity, the bead generates mechanical vibration feedback and sound feedback as it slides through the grooves and protrusions.
[0006] This utility model provides a rotary mechanism with feedback, and the specific technical solution is as follows:
[0007] This includes the stator, rotor, subdivision structure, and flexible ball bearing structure;
[0008] The rotor is mounted on the stator, and the stator is rotatably connected to the rotor;
[0009] The elastic ball structure includes an elastic body and a ball. The elastic body is disposed in the cavity formed by the rotor and the stator. One end of the elastic body is fixedly connected to the side of the rotor opposite to the stator, and the other end is fixedly connected to the ball.
[0010] The subdivision structure is configured in the stator, and the ball bearing is connected to the subdivision structure.
[0011] Furthermore, the subdivision structure is composed of alternating protrusions and grooves, the protrusions and grooves being distributed in an arc shape along the top edge of the stator.
[0012] Based on this structure, by rotating the rotor, the elastic body and the ball bearing slide along the subdivided structure. Under the action of elasticity, the ball bearing moves up and down on the subdivided structure during sliding, realizing mechanical vibration and sound feedback.
[0013] Furthermore, the vertical height difference between the groove and the protrusion is less than 1 / 3 of the diameter of the bead ball.
[0014] Furthermore, the stator is also provided with an annular component, which is fitted onto a cylindrical protrusion on the top of the stator and is located at the central axis of the rotor's rotation relative to the stator.
[0015] When the rotor rotates, it rotates around the annular component, ensuring that the rotor rotates along a fixed trajectory and avoiding positional deviation relative to the stator.
[0016] Furthermore, the rotor is provided with a first structure and a second structure, the first structure and the second structure being annular plate structures, the first structure and the second structure surrounding the annular member.
[0017] Furthermore, the top edge of the stator is provided with a slot, and the main body edge of the rotor is placed in the slot.
[0018] The slots stabilize the rotor position relative to the stator, while also facilitating stable rotation of the rotor relative to the stator.
[0019] Furthermore, the stator is also provided with a limiting block, which is placed in the cavity formed by the rotor and the stator, and the rotor is provided with a limiting body inside the cavity that is adapted to the limiting block.
[0020] By using limit blocks and matching limit bodies, the elastic body and the ball bearings are ensured to move on the subdivision structure when the rotor rotates, thus preventing the ball bearings from detaching from the subdivision structure.
[0021] Furthermore, the rotor is provided with a sleeve, and the elastomer is placed inside the sleeve.
[0022] The sleeve allows the elastomer to move synchronously and stably with the rotor as it rotates, ensuring that the rotor's rotation angle is synchronized with the subdivision angle of the subdivision structure.
[0023] Furthermore, an annular third structure is fixedly connected to the outer wall of the sleeve, and the third structure is fixedly connected to the main body of the rotor through a connecting plate.
[0024] Furthermore, the elastic body is a spring, and the plane of the spring body at the end connected to the ball bearing is perpendicular to the plane of the spring as it rotates with the rotor.
[0025] This structure ensures that the tangential surface at the point where the spring contacts the bead is parallel to the plane of the subdivision structure, enabling the bead to slide stably and horizontally along the subdivision structure.
[0026] The beneficial effects of this utility model are as follows:
[0027] This invention designs an elastic ball bearing mechanism with an elastic body and ball bearings fixedly connected. The elastic ball bearing structure is connected to the rotor and also features a subdivision structure with alternating grooves and protrusions. The ball bearings contact the subdivision structure, and the elastic ball bearing mechanism moves as a whole with the rotation of the rotor, thereby causing the ball bearings to slide on the subdivision structure. Utilizing the elasticity of the elastic body, the ball bearings generate mechanical vibration feedback and sound feedback as they slide across the grooves and protrusions, which are in sync with the rotor rotation. This structure ensures that the feedback from the rotor rotation is synchronized with the rotation angle, solving the problems of existing rotation mechanisms where the sound and tactile feedback of the rotation angle does not have the actual rotation angle, and the problems of large play and low rotation angle accuracy. Furthermore, the rotation feedback structure provided by this invention can also adjust the feedback rotation angle by adjusting the subdivision angle of the subdivision structure and the size of the ball bearings. Attached Figure Description
[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0029] Figure 2 This is a schematic diagram of the stator and the internal structure of the cavity of this utility model.
[0030] Figure 3 This is a schematic diagram of the rotor structure of this utility model.
[0031] Explanation of reference numerals in the attached drawings: 1-Stator, 2-Rotor, 3-Elastic body, 4-Bead, 5-Groove, 6-Protrusion, 7-Annular part, 8-Limiting block, 9-Slot, 10-First structure, 11-Second structure, 12-Third structure, 13-Sleeve, 14-Connecting plate. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. The components of the embodiments of the present utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0033] In the description of the embodiments of this utility model, it should be noted that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art, or the orientation or positional relationship commonly used when the utility model product is in use. These are only for the convenience of describing the utility model and simplifying the description, and are not intended to 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 the utility model. Furthermore, the terms "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0034] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0035] Example 1
[0036] Embodiment 1 of this utility model discloses a rotary mechanism with feedback, such as... Figure 1 As shown, the details are as follows:
[0037] It includes a stator 1, a rotor 2, a subdivision structure, and a flexible ball bearing 4 structure;
[0038] The rotor 2 is mounted on the stator 1, and the stator 1 is rotatably connected to the rotor 2;
[0039] As a preferred embodiment, such as Figure 2 As shown, the stator 1 is also provided with an annular part 7, which is sleeved on the cylindrical protrusion 6 on the top of the stator 1 and is located at the central axis of the rotor 2 relative to the stator 1.
[0040] Specifically, the bottom of the cylindrical protrusion is also provided with intermittent ribs for vertical positioning.
[0041] Specifically, the annular component 7 can be made of plastic material.
[0042] As a preferred embodiment, such as Figure 3 As shown, the rotor 2 is provided with a first structure 10 and a second structure 11. The first structure 10 and the second structure 11 are annular plate structures, and the first structure 10 and the second structure 11 surround the annular member 7.
[0043] like Figure 2As shown, the structure of the elastic body 3 and the ball bearing 4 includes an elastic body 3 and a ball bearing 4. The elastic body 3 is disposed in the cavity formed by the rotor 2 and the stator 1. One end of the elastic body 3 is fixedly connected to the side of the rotor 2 opposite to the stator 1, and the other end is fixedly connected to the ball bearing 4.
[0044] The subdivision structure is configured such that the ball bearing 4 is connected to the subdivision structure in the stator 1.
[0045] As a preferred embodiment, such as Figure 2 As shown, the subdivided structure consists of alternating protrusions 6 and grooves 5, with the protrusions 6 and grooves 5 arranged in an arc shape along the top edge of the stator 1.
[0046] When the rotor 2 rotates, it drives the elastic body 3 and the ball bearing 4 to slide on the subdivided structure. Whenever the ball bearing 4 passes the adjacent groove 5 and protrusion 6, it will make longitudinal up-and-down movement under the action of elasticity, thereby generating mechanical vibration and sound feedback with rotation.
[0047] In a preferred embodiment, the vertical height difference between the groove 5 and the protrusion 6 is less than 1 / 3 of the diameter of the ball of the bead 4;
[0048] This ensures that when the ball bearing 4 slides between adjacent grooves 5 in the subdivided structure, the whole structure will not be horizontally offset, and the rotation of the rotor 2 will not be affected, thus ensuring that the rotor 2 can rotate easily.
[0049] As a preferred embodiment, such as Figure 2 As shown, the top edge of the stator 1 is also provided with a slot 9, and the main body edge of the rotor 2 is placed in the slot 9.
[0050] In a preferred embodiment, the stator 1 is further provided with a limiting block 8, which is placed in the cavity formed by the rotor 2 and the stator 1, and the rotor 2 is provided with a limiting body adapted to the limiting block 8 inside the cavity.
[0051] The rotation angle of the rotor 2 is controlled by the limiting body and the limiting block 8, so as to ensure that the ball bearing 4 slides on the subdivision structure as the rotor 2 rotates.
[0052] As a preferred embodiment, such as Figure 3 As shown, the rotor 2 is provided with a sleeve 13, and the elastic body 3 is placed inside the sleeve 13;
[0053] In a preferred embodiment, an annular third structure 12 is fixedly connected to the outer wall of the sleeve 13. The third structure 12 is fixedly connected to the main body of the rotor 2 and the first structure 10 through a connecting plate 14.
[0054] As a preferred embodiment, such as Figure 2As shown, the elastic body 3 is a spring, and the spring body plane at the end connected to the ball 4 is perpendicular to the plane in which the spring rotates with the rotor 2; so that the tangential surface at the point where the spring and the ball 4 are connected is parallel to the plane where the subdivision structure is located, so that the ball 4 can slide stably and horizontally along the subdivision structure.
[0055] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A rotary mechanism with feedback, characterized in that, This includes the stator, rotor, subdivision structure, and flexible ball bearing structure; The rotor is mounted on the stator, and the stator is rotatably connected to the rotor; The elastic ball structure includes an elastic body and a ball. The elastic body is disposed in the cavity formed by the rotor and the stator. One end of the elastic body is fixedly connected to the side of the rotor opposite to the stator, and the other end is fixedly connected to the ball. The subdivision structure is configured in the stator, and the ball bearing is connected to the subdivision structure.
2. The rotary mechanism with feedback according to claim 1, characterized in that, The subdivision structure consists of alternating protrusions and grooves, which are distributed in an arc shape along the top edge of the stator.
3. The rotary mechanism with feedback according to claim 2, characterized in that, The vertical height difference between the groove and the protrusion is less than 1 / 3 of the diameter of the bead ball.
4. The rotary mechanism with feedback according to claim 1, characterized in that, The stator is also provided with an annular component, which is fitted onto a cylindrical protrusion on the top of the stator and is located at the central axis of the rotor's rotation relative to the stator.
5. The rotary mechanism with feedback according to claim 4, characterized in that, The rotor is provided with a first structure and a second structure, the first structure and the second structure being annular plate structures, the first structure and the second structure surrounding the annular component.
6. The rotary mechanism with feedback according to claim 1, characterized in that, The top edge of the stator is also provided with a slot, and the main body edge of the rotor is placed in the slot.
7. The rotary mechanism with feedback according to claim 1, characterized in that, The stator is also provided with a limiting block, which is placed in the cavity formed by the rotor and the stator. The rotor is provided with a limiting body inside the cavity that is adapted to the limiting block.
8. The rotary mechanism with feedback according to claim 1, characterized in that, The rotor is provided with a sleeve, and the elastic body is placed inside the sleeve.
9. The rotary mechanism with feedback according to claim 8, characterized in that, The outer wall of the sleeve is also fixedly connected to an annular third structure, which is fixedly connected to the main body of the rotor via a connecting plate.
10. The rotary mechanism with feedback according to claim 9, characterized in that, The elastic body is a spring, and the plane of the spring body at the end connected to the ball bearing is perpendicular to the plane of the spring as it rotates with the rotor.