Switch knob structure
By adding protrusions on the mating surface of the bracket or rotary part of the switch knob structure to reduce the sliding friction area, the problem of insufficient feel of gear change in the prior art is solved, and more obvious feedback on gear change in gear change is achieved, and user experience is improved.
Patent Information
- Application Number
- CN202421780939.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-25
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-25
AI Technical Summary
When the existing switch knob structure rotates, the gear position changes are weak, resulting in insufficient user experience.
By adding a projection on the bracket fitting surface or the rotary member fitting surface, the sliding friction area between the bracket and the rotary member is reduced, thereby enhancing the feel feedback of gear change.
It effectively reduces the loss of gear change feel, allowing users to obtain obvious gear change feel when using it, and improves user experience.
Smart Images
Figure CN222927355U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of switches, in particular to a switch knob structure. Background Art
[0002] A knob is a switch that sends different signals to the circuit board inside the switch knob structure by rotating the knob or pressing the knob cover, so that the circuit board controls the start and stop, direction adjustment, position adjustment, running speed and other control functions of the device. In order to achieve these functions, an encoder is usually connected to the circuit board. When the user rotates the knob, the encoder gear will rotate. The encoder gear has different gears, so that the user can experience the feel of the gear change when rotating the knob. However, the defect of the existing switch knob structure is that when the user rotates the knob, the feel of the gear change is weak, resulting in a lot of room for improvement in user experience. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide an improved switch knob structure, increase the gear change feel fed back to the user when the knob is rotated, and improve the user experience.
[0004] The technical solution adopted by the utility model to solve the technical problem is: to provide a switch knob structure, which includes a gear, a bracket, and a rotating part;
[0005] The gear is arranged on the bracket;
[0006] The rotating member comprises a transmission surface, and the transmission surface is provided with teeth meshing with the gear;
[0007] The rotating member is sleeved on the bracket, can rotate relative to the bracket, and is transmission-connected to the gear through the teeth;
[0008] The bracket includes at least one bracket mating surface, the rotating member includes at least one rotating member mating surface, and the at least one bracket mating surface and the at least one rotating member mating surface are parallel to each other;
[0009] At least one of the bracket mating surfaces is provided with at least one protrusion, each of the protrusions comprises a contact surface in contact with the mating surface of the rotating member, and the area of the contact surface is smaller than the area of the bracket mating surface;
[0010] Alternatively, at least one of the rotating member mating surfaces is provided with at least one protrusion, each of the protrusions includes a contact surface in contact with the bracket mating surface, and the area of the contact surface is smaller than the area of the rotating member mating surface.
[0011] Preferably, one of the bracket mating surfaces or one of the rotating member mating surfaces is a first mating surface;
[0012] At least one groove is provided on the first mating surface, and an elastic arm is provided in each groove. The elastic arm includes an elastic body and an abutting portion connected to each other, and the abutting portion can abut against the bracket mating surface or the rotating member mating surface.
[0013] Preferably, the protruding portion on the first mating surface includes a first protruding portion; the height h1 of the first protruding portion protruding relative to the first mating surface is less than the height h2 of the abutting portion protruding relative to the elastic body.
[0014] Preferably, one of the bracket mating surfaces or one of the rotating member mating surfaces is the first mating surface;
[0015] The switch knob structure further includes an elastic member, and the elastic member is connected between at least one of the protruding portions and the first mating surface.
[0016] Preferably, the plurality of protruding portions are spaced apart on the bracket mating surface or the rotating member mating surface.
[0017] Preferably, at least one first fastening portion is provided on one of the bracket mating surfaces, and at least one second fastening portion that is fastened and connected to the first fastening portion is provided on one of the rotating member mating surfaces.
[0018] Preferably, on the bracket, the first fastening portion and at least one of the protruding portions have the same radial position;
[0019] And / or, on the rotating member, the second fastening portion and at least one of the protruding portions have the same radial position.
[0020] Preferably, the switch knob structure further includes an elastic ring connected between the bracket and the rotating member.
[0021] Preferably, the switch knob structure further includes a panel. An accommodation space is defined between the panel and the rotating member, and a circuit board and a light-emitting component on the bracket are provided in the accommodation space;
[0022] The light-emitting component includes a light-emitting member and a light-transmitting member. The light-emitting member is provided on the circuit board, and the light-transmitting member includes a light-transmitting portion arranged around the panel.
[0023] Preferably, the panel includes an integrated button, and the integrated button includes at least one control zone.
[0024] The utility model has at least the following beneficial effects: by adding a convex part on the mating surface of the bracket or the rotating part, the area of the contact surface on the convex part is smaller than that of the mating surface of the bracket, reducing the sliding friction area between the bracket and the rotating part, thereby reducing the loss of the feel of gear shift feedback at the gear, enabling the user to obtain an obvious feel of gear shift during use and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In order to more clearly illustrate the technical solutions of the present utility model, the following will further describe the present utility model in conjunction with the drawings and embodiments. In the drawings:
[0026] Figure 1 is the overall structural schematic diagram of the switch knob structure according to the first embodiment of the present utility model;
[0027] Figure 2 is Figure 1 the exploded structural schematic diagram of the shown switch knob structure;
[0028] Figure 3 is Figure 2 the assembly structural schematic diagram of the bracket and the rotating part of the shown switch knob structure;
[0029] Figure 4 is Figure 3 the exploded structural schematic diagram of;
[0030] Figure 5 is Figure 4 the sectional structural schematic diagram of the shown bracket;
[0031] Figure 6 is Figure 5 the enlarged structural schematic diagram of part A of;
[0032] Figure 7 is Figure 5 the enlarged structural schematic diagram of part B of;
[0033] Figure 8 is the partial structural schematic diagram of the switch knob structure according to the second embodiment of the present utility model;
[0034] Figure 9 is the sectional structural schematic diagram of the switch knob structure according to the third embodiment of the present utility model;
[0035] Figure 10 is the exploded structural schematic diagram of the switch knob structure according to the third embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0036] In order to have a clearer understanding of the technical features, objectives, and effects of the present utility model, the following will now describe in detail the specific embodiments of the present utility model with reference to the drawings.
[0037] As described in the background art, the existing switch knob structure has the defect that when the user rotates the knob, the feel of gear change is weak. One of the reasons for the weak feel of gear change is that the rotational friction inside the switch knob structure is large, which weakens the feel of gear change to some extent. The object of the present invention is to enhance the feel of gear change feedback to the user when the knob is rotated.
[0038] Figures 1 to 7 The switch knob structure of the first embodiment of the present invention is shown. As Figures 1 to 4 shown, the switch knob structure of the first embodiment of the present invention includes a panel 1, a bracket 2, a rotating member 3, a circuit board 4, a light-emitting component 5, a gear 6, a base 7, etc. An accommodation space is defined between the panel 1 and the rotating member 3, and the bracket 2, the circuit board 4, the light-emitting component 5, and the gear 6 are all accommodated in this accommodation space. The bracket 2 is used to support the circuit board 4, and the circuit board 4 can be installed and fixed on the bracket 2. The light-emitting component 5 includes a light-emitting member 51, a light-transmitting member 52, and a light guide member 53. The light-emitting member 51 is arranged on the circuit board 4. An encoder is connected to the circuit board 4, and the encoder has a gear 6. The light-transmitting member 52 includes an annular light-transmitting portion 521, and the light-transmitting portion 521 surrounds the panel 1, so that a light-transmitting ring is formed around the periphery of the panel 1. The light guide member 53 is arranged between the circuit board 4 and the light-transmitting member 52, and the light guide member 53 makes the light generated at the light-emitting member 51 uniformly pass through the light-transmitting member 52. A key is provided on the panel 1, and the key can be an integral key. The integral key includes at least one control area. For example, the integral key includes four control areas, and the four control areas are respectively located on the upper side, the lower side, the left side, and the right side of the key. The integral key can be pressed / touched by the user to adjust the corresponding device state. The base 7 is connected to the end of the rotating member 3 away from the panel 1, and the base 7 and the panel 1 together cover the accommodation space.
[0039] As Figure 3 and Figure 4 shown, in the first embodiment, since the encoder is arranged on the circuit board 4, and the circuit board 4 is installed on the bracket 2, the gear 6 is indirectly arranged on the bracket 2. The rotating member 3 is sleeved on the bracket 2, can rotate relative to the bracket 2, and is in transmission connection with the gear 6. When the rotating member 3 rotates relative to the bracket 2, it drives the gear 6 to rotate, so that a gear change occurs inside the encoder, and the feel of gear change is feedback to the user.
[0040] The bracket 2 includes at least one bracket mating surface, and the rotating member 3 includes at least one rotating member mating surface. The at least one bracket mating surface and the at least one rotating member mating surface are parallel to each other. Specifically, as Figure 3In the first embodiment shown, the bracket 2 includes two bracket mating surfaces, namely a first mating surface 21 and a second mating surface 22. The two bracket mating surfaces are perpendicular to each other. The first mating surface 21 extends along the axial direction of the rotary switch, and the second mating surface 22 extends along the radial direction of the rotary switch. Accordingly, as Figure 6 and Figure 7 shown, the rotating member 3 also includes two rotating member mating surfaces, namely a third mating surface 33 and a fourth mating surface 34. The third mating surface 33 is parallel to the first mating surface 21, and the fourth mating surface 34 is parallel to the second mating surface 22. In other embodiments, the number of bracket mating surfaces and rotating member mating surfaces can also be other numbers. For each bracket mating surface, at least one rotating member mating surface is parallel to it; similarly, for each rotating member mating surface, at least one bracket mating surface is parallel to it.
[0041] At least one protruding portion is provided on at least one bracket mating surface. Each protruding portion includes a contact surface that contacts the rotating member mating surface, and the area of the contact surface is smaller than the area of the bracket mating surface. Specifically, in the first embodiment shown in Figure 4 as shown, the bracket 2 is provided with a first protruding portion 231 on the first mating surface 21 and a second protruding portion 232 on the second mating surface 22. The first protruding portion 231 is in the shape of a triangular prism, and the second protruding portion 232 is in the shape of a column. Of course, in other embodiments, each protruding portion can also be other shapes, such as frustum-shaped, quadrangular prism-shaped, etc.
[0042] In other embodiments, it can also be that at least one protruding portion is provided on at least one rotating member mating surface. Each protruding portion includes a contact surface that contacts the bracket mating surface, and the area of the contact surface is smaller than the area of the rotating member mating surface.
[0043] In the existing switch knob structure, when the bracket 2 and the rotating member 3 rotate relative to each other, the bracket mating surface and the rotating member mating surface directly slide and contact each other, generating a relatively large sliding friction force, which weakens part of the feel of the gear position change feedback from the gear 6 of the encoder. The utility model reduces the sliding friction area between the bracket 2 and the rotating member 3 by adding a protruding portion on the bracket mating surface or the rotating member mating surface, and the area of the contact surface on the protruding portion is smaller than the area of the bracket mating surface, thereby reducing the loss of the feel of the gear position change feedback from the gear 6, enabling the user to obtain an obvious feel of the gear position change during use, and improving the user experience.
[0044] Further, at least one groove 211 is formed on the first mating surface 21. Each groove 211 is provided with an elastic arm 8. The elastic arm 8 includes an elastic main body 81 and an abutting portion 82 that are connected. The abutting portion 82 can abut against the bracket mating surface or the rotating member mating surface. As Figure 4In the first embodiment shown, the elastic arm 8 is provided on the bracket 2, and the abutting portion 82 can abut against the mating surface of the rotating member. In other embodiments, the elastic arm 8 can also be provided on the rotating member 3. At this time, the abutting portion 82 can abut against the mating surface of the bracket. Specifically, as Figure 4 shown, in the natural state where the elastic arm 8 does not undergo elastic deformation, the upper surface of the elastic main body 81 is substantially in the same plane as the first mating surface 21. The abutting portion 82 can play the same role as the protruding portion, that is, it contacts the mating surface of the rotating member, but has a smaller contact area compared to the mating surface of the bracket. Specifically, as Figure 4 shown in the first embodiment, four grooves 211 are provided on the first mating surface 21. One elastic arm 8 is provided in each groove 211. Each elastic arm 8 can abut against the mating surface of the rotating member with its abutting portion 82, and can generate displacement in the axial direction through its own elastic deformation. In the state where the switch knob structure is installed, there is a certain pre-tightening force between each elastic arm 8 and the mating surface of the rotating member. In this way, even if there are dimensional tolerances for each abutting portion 82, the elastic main body 81 can ensure that the mating surface of the rotating member can have good contact with each abutting portion 82 through its elasticity. That is, the elastic arm 8 can play the same role as the protruding portion, and can eliminate the dimensional tolerances between each abutting portion 82, ensuring that the mating surface of the rotating member can have good contact with each abutting portion 82.
[0045] As Figure 4 shown in the first embodiment, the abutting portion 82 is generally hemispherical, and the abutting portion 82 contacts the mating surface of the rotating member with its spherical surface, having a smaller contact area. Of course, in other embodiments, the abutting portion 82 can also be other shapes.
[0046] Furthermore, as Figures 5 to 7 shown, in the first embodiment, the height h1 by which the first protruding portion 231 on the first mating surface 21 protrudes relative to the first mating surface 21 is less than the height h2 by which the abutting portion 82 protrudes relative to the elastic main body 81. Due to the relatively large height of the abutting portion 82, normally, only the elastic arm 8 can contact the mating surface of the rotating member. During use, if the elasticity of the elastic arm 8 decreases or fails, the mating surface of the rotating member can contact the first protruding portion 231 below, avoiding direct friction between the mating surface of the rotating member and the mating surface of the bracket 2 on the bracket when the elastic arm 8 loses its elasticity, and even avoiding jamming.
[0047] As Figure 8 shown, Figure 8 shows a partial structure of the switch knob structure according to the second embodiment of the present invention. In the second embodiment, different from the first embodiment, the switch knob structure further includes an elastic member 83, and an elastic member 83 is connected between at least one protruding portion and the first mating surface 21. As Figure 8As shown, an elastic member 83 is connected between the first convex portion 231 and the first mating surface 21, and the elastic member 83 may be a spring. In the state where the switch knob structure is installed, due to the pre-compression of the elastic member 83, there is a certain pre-tightening force between each first convex portion 231 and the rotating member mating surface. In this way, even if there are dimensional tolerances in each first convex portion 231, the elastic property of the elastic member 83 can ensure that the rotating member mating surface can have good contact with each first convex portion 231.
[0048] As Figure 4 shown in the first embodiment, four first fastening portions 241 are provided on the second mating surface 22 of the bracket 2. Correspondingly, four second fastening portions are also provided on one of the rotating member mating surfaces, and the four first fastening portions and the four second fastening portions are fastened and connected in a one-to-one correspondence. Specifically, a plurality of strip-shaped grooves 211 are formed on the second mating surface 22 of the bracket 2, and each first fastening portion 241 is disposed between two strip-shaped grooves 211. In other embodiments, the number of the first fastening portions 241 and the second fastening portions may also be one, two, three, more than four, etc. Through the fastening connection between the first fastening portion 241 and the second fastening portion, the bracket 2 and the rotating member 3 are limited and fixed.
[0049] Furthermore, the first fastening portion 241 may have the same radial position as at least one convex portion. Specifically, as Figure 4 shown in the first embodiment, a total of four second convex portions 232 are provided on the second mating surface 22, and the four first fastening portions 241 and the four second convex portions 232 have the same radial position. The radial position refers to the relative distance between the component on the bracket 2 and the center C of the bracket 2. That is, the minimum distance d1 between each second convex portion 232 and the center C of the bracket 2 is equal to the minimum distance d2 between each first fastening portion 241 and the center C of the bracket 2.
[0050] As Figures 4 to 7 shown in the first embodiment, the four first convex portions 231 are spaced apart on the first mating surface 21 of the bracket 2, and the four second convex portions 232 are spaced apart on the second mating surface 22 of the bracket 2. In the installed state, the four first convex portions 231 are respectively in contact with one of the rotating member mating surfaces (such as the third mating surface 33) on the rotating member 3, and the four second convex portions 232 are respectively in contact with another rotating member mating surface (such as the fourth mating surface 34) on the rotating member 3.
[0051] As Figure 4 shown in the first embodiment, the rotating member 3 further includes a transmission surface, and both the transmission surface and the rotating member mating surface are located inside the rotating member 3. A ring of teeth 31 is provided on the transmission surface, and the teeth 31 are engaged with the gear 6 on the bracket 2, thereby realizing the transmission connection between the rotating member 3 and the gear 6.
[0052] As Figure 9 and Figure 10 shown in the third embodiment, different from the first embodiment, the switch knob structure further includes an elastic ring 85 connected between the bracket 2 and the rotating member 3. Specifically, the elastic ring 85 can be a silicone rubber ring, a rubber ring, etc. A circumferential recessed groove 25 is provided along the circumference of the bracket 2, and the elastic ring 85 is installed in the recessed groove 25. The elastic ring 85 can abut between the bracket 2 and the rotating member 3 to provide a pre-tightening force between the bracket 2 and the rotating member 3, so that the fitting clearance between the bracket 2 and the rotating member 3 remains uniform. The mechanical transmission between the rotating member 3 and the gear 6 may cause mechanical vibration inside the switch knob structure. The elastic ring 85 can reduce the noise and vibration caused by mechanical vibration and improve the user experience.
[0053] Furthermore, in some embodiments, a lubricating layer is provided on the contact surface of at least one protrusion, on at least one rotating member mating surface and / or on at least one bracket mating surface. The lubricating layer can play a role in reducing friction when the rotating member 3 and the bracket 2 rotate relative to each other, thereby reducing the loss of the feel of gear position change feedback at the gear 6, enabling the user to obtain an obvious feel of gear position change during use and improving the user experience.
[0054] In some embodiments, at least one protrusion is a polyoxymethylene protrusion, that is, at least one protrusion is made of polyoxymethylene material. Similarly, at least one rotating member 3 can be a polyoxymethylene rotating member 3, and at least one bracket 2 can be a polyoxymethylene bracket 2, so as to improve the wear resistance and lubricity of the protrusion, the rotating member 3 and / or the bracket 2, reduce the rotational friction and increase the part life, and improve the user experience.
[0055] It can be understood that the above embodiments only represent the preferred embodiments of the present invention, and the description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention; it should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, the above technical features can be freely combined, and several deformations and improvements can also be made, which all belong to the protection scope of the present invention; therefore, all equivalent transformations and modifications made to the scope of the claims of the present invention shall fall within the scope covered by the claims of the present invention.
Claims
1. A switch knob structure, characterized in that: It comprises a gear (6), a bracket (2), and a rotating part (3); The gear (6) is arranged on the bracket (2); The rotating member (3) comprises a transmission surface, on which teeth (31) meshing with the gear (6) are provided; The rotating member (3) is sleeved on the bracket (2), can rotate relative to the bracket (2), and is transmission-connected to the gear (6) via the teeth (31); The bracket (2) comprises at least one bracket mating surface, the rotating member (3) comprises at least one rotating member mating surface, and the at least one bracket mating surface and the at least one rotating member mating surface are parallel to each other; At least one of the bracket mating surfaces is provided with at least one protrusion, each of the protrusions comprises a contact surface in contact with the mating surface of the rotating member, and the area of the contact surface is smaller than the area of the bracket mating surface; Alternatively, at least one of the rotating member mating surfaces is provided with at least one protrusion, each of the protrusions includes a contact surface in contact with the bracket mating surface, and the area of the contact surface is smaller than the area of the rotating member mating surface.
2. The switch knob structure according to claim 1, characterized in that: One of the bracket mating surfaces or one of the rotating member mating surfaces is a first mating surface (21); At least one groove (211) is provided on the first mating surface (21), and an elastic arm (8) is provided in each of the grooves (211). The elastic arm (8) comprises an elastic body (81) and an abutment portion (82) connected to each other, and the abutment portion (82) can abut against the bracket mating surface or the rotating member mating surface.
3. The switch knob structure according to claim 2, characterized in that: The raised portion on the first mating surface (21) comprises a first raised portion (231); a height h1 of the first raised portion (231) relative to the first mating surface (21) is smaller than a height h2 of the abutment portion (82) relative to the elastic body (81).
4. The switch knob structure according to claim 1, characterized in that: One of the bracket mating surfaces or one of the rotating member mating surfaces is a first mating surface (21); The switch knob structure further comprises an elastic member (83), and the elastic member (83) is connected between at least one of the protruding portions and the first matching surface (21).
5. The switch knob structure according to any one of claims 1 to 4, characterized in that: The plurality of protrusions are arranged at intervals on the bracket mating surface or the rotating member mating surface.
6. The switch knob structure according to any one of claims 1 to 4, characterized in that: At least one first buckling portion (241) is provided on one of the bracket mating surfaces, and at least one second buckling portion buckled and connected to the first buckling portion (241) is provided on one of the rotating member mating surfaces.
7. The switch knob structure according to claim 6, characterized in that: On the bracket (2), the first buckling portion (241) and at least one of the protruding portions have the same radial position; And / or, on the rotating member (3), the second locking portion and at least one of the protruding portions have the same radial position.
8. The switch knob structure according to any one of claims 1 to 4, characterized in that: The switch knob structure also includes an elastic ring (85) connected between the bracket (2) and the rotating member (3).
9. The switch knob structure according to any one of claims 1 to 4, characterized in that: The switch knob structure further comprises a panel (1), wherein a receiving space is defined between the panel (1) and the rotating member (3), and a circuit board (4) and a light-emitting component (5) on the bracket (2) are arranged in the receiving space; The light-emitting assembly (5) comprises a light-emitting component (51) and a light-transmitting component (52); the light-emitting component (51) is arranged on the circuit board (4); and the light-transmitting component (52) comprises a light-transmitting portion (521) arranged around the panel (1).
10. The switch knob structure according to claim 9, characterized in that: The panel (1) comprises an integrated button, and the integrated button comprises at least one control partition.