Steering wheel knob switch

Abstract

The utility model discloses a steering wheel knob switch, which comprises a button, a decorative ring, a knob, a turntable, a support, an elastic sheet and a shell, the support is fixedly mounted in the shell, the button is slidably connected onto the support, the turntable is rotatably connected onto the support, the knob is connected onto the turntable through a hook structure I, and the elastic sheet is connected onto the shell. A first rib groove structure is further arranged between the rotary knob and the rotary disc, the decoration ring is connected to the rotary knob through a second hook structure, a second rib groove structure is further arranged between the decoration ring and the rotary knob, the elastic piece is fixedly installed on the support, the elastic piece is in an annular shape, and at least two evenly-distributed positioning protruding parts are arranged on the elastic piece. An annular gear part is arranged at the bottom of the rotary disc, a plurality of positioning notches which are evenly distributed are formed in the gear part, and the positioning protruding parts can be clamped into the positioning notches.

Description

TECHNICAL FIELD

[0001] The utility model belongs to steering wheel technical field relates to a steering wheel knob switch. BACKGROUND

[0002] The knob switch plays a vital role in the steering wheel, and it is one of the key components for the driver to interact with the vehicle. At present, most knobs adopt a single fixed structure, such as a pure rib groove, a buckle or a thread. The decorative ring is usually fixed by gluing or an independent buckle structure, which makes them easy to loosen; at the same time, the elastic sheet causes stress concentration due to point contact, resulting in a flat resistance gradient, which is difficult for users to clearly perceive, and the elastic release sound and the sliding noise are mixed together. Therefore, it is particularly necessary to design a steering wheel knob switch to solve the above problems. SUMMARY

[0003] In order to solve the problems of the prior art, the utility model provides a steering wheel knob switch.

[0004] In order to achieve the above-mentioned purpose, the technical scheme of the utility model is: the steering wheel knob switch, including button, decorative ring, knob, rotating disc, support, elastic sheet and shell, the support is fixedly installed in the shell, the button is slidably connected on the support, the rotating disc is rotatably connected on the support, characterized by, the knob is connected on the rotating disc through the hook structure one, the knob and the rotating disc further have the rib groove structure one between them, the decorative ring is connected on the knob through the hook structure two, the decorative ring and the knob further have the rib groove structure two between them, the elastic sheet is fixedly installed on the support, the shape of the elastic sheet is annular, the elastic sheet has at least two positioning convex parts which are uniformly distributed, the rotating disc bottom has annular gear part, the gear part has a plurality of positioning notches which are uniformly distributed, and the positioning convex part can be clamped into the positioning notch.

[0005] The hook structure one includes a plurality of hook holes one opened on the rotating disc and a plurality of hooks one arranged on the knob, and the hook one can be hung into the hook hole one; the rib groove structure one includes a plurality of connecting ribs one arranged on the rotating disc and a plurality of connecting grooves one arranged on the knob, and the connecting rib one can be inserted into the connecting groove one.

[0006] The hook structure two includes a plurality of hook holes two opened on the decorative ring and a plurality of hooks two arranged on the knob, and the hook two can be hung into the hook hole two; the rib groove structure two includes a plurality of connecting ribs two arranged on the knob and a plurality of connecting grooves two arranged on the decorative ring, and the connecting rib two can be inserted into the connecting groove two.

[0007] The support further has a connecting hole, and the elastic sheet has a connecting ear downward and in the form of a thorn, and the connecting ear can be inserted into the connecting hole.

[0008] The hook one and the hook two are both L-shaped.

[0009] The knob is formed with a metal surface texture after plastic injection molding and PVD surface treatment.

[0010] By adopting the technical scheme, the utility model has the advantages of:

[0011] The utility model discloses a mechanism of rib groove cooperation realizes accurate axial torque transmission, effectively prevents the sliding between the knob and the decorative ring, the knob and the rotating disc, and simultaneously, the hook structure ensures the stable fixing in radial direction, prevents the falling phenomenon, thereby the reliability of movement cooperation is enhanced as a whole, through adopting double fixing mechanism, that is, rib groove transmission and hook anti -drop, the risk of single structure failure is reduced obviously, in addition, the positioning convex part of elastic sheet and the gear part of rotating disc adopt the design of profile tangent, not only improves the identification of gear, also optimizes the hand feeling, reduces the noise when operating. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the flash diagrammatic sketch of the utility model.

[0013] Figure 2 It is the three-dimensional structure diagrammatic sketch of the decorative ring in the utility model.

[0014] Figure 3 It is the three-dimensional structure diagrammatic sketch of the knob in the utility model.

[0015] Figure 4 It is the three-dimensional structure diagrammatic sketch of the rotating disc in the utility model.

[0016] Figure 5 It is the three-dimensional structure diagrammatic sketch of the elastic sheet in the utility model.

[0017] Figure 6 It is the three-dimensional structure diagrammatic sketch of the support in the utility model.

[0018] Figure 7 It is the plane structure diagrammatic sketch of the utility model.

[0019] In the drawing, 1, button, 2, decorative ring, 2a, hook hole two, 2b, connecting groove two, 3, knob, 3a, hook two, 3b, connecting rib two, 3c, hook one, 3d, connecting groove one, 4, rotating disc, 4a, hook hole one, 4b, connecting rib one, 4c, positioning recess, 5, elastic sheet, 5a, positioning convex part, 5b, connecting ear, 6, support, 6a, connecting hole, 7, waterproof rubber, 8, PCB assembly, 9, shell, 901, upper cover, 902, base assembly, 903, back cover. DETAILED DESCRIPTION

[0020] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0021] like Figures 1-7 As shown, this steering wheel rotary switch includes a button 1, a decorative ring 2, a knob 3, a turntable 4, a bracket 6, a spring 5, and a housing 9. The bracket 6 is fixedly installed inside the housing 9. The button 1 is slidably connected to the bracket 6, and the turntable 4 is rotatably connected to the bracket 6. The knob 3 is connected to the turntable 4 via a hook structure. A groove structure is also present between the knob 3 and the turntable 4. Specifically, the knob 3 and the turntable 4 are fitted with grooves. To ensure the stability of the component movement, a hook structure is used to assemble the knob 3 onto the turntable 4. With the grooves and hooks fixed, the knob 3 can rotate, causing the turntable 4 to rotate. The decorative ring 2 is connected to the knob 3 via a hook structure. A second groove structure is also present between the decorative ring 2 and the knob 3. Specifically, the groove structure is also present between the knob 3 and the decorative ring 2. For the stability of the movement of the components, a hook structure is used to assemble the decorative ring 2 onto the knob 3. With the rib groove and hook fixed, the decorative ring 2 can be fixed on the knob 3, and the rotation of the knob 3 will rotate the decorative ring 2. The spring piece 5 is fixedly installed on the bracket 6. The spring piece 5 is ring-shaped and has at least two evenly distributed positioning protrusions 5a. The bottom of the turntable 4 has an annular gear position part with several evenly distributed positioning recesses 4c. The positioning protrusions 5a can be inserted into the positioning recesses 4c. In practice, the spring piece 5 provides a step-by-step resistance during rotation through elastic deformation, that is, "gear feel", to ensure that the user can clearly perceive the change of each gear. When the spring piece 5 is quickly disengaged from the gear position part, the elastic release produces a sound.

[0022] The hook structure includes several hook holes 4a on the turntable 4 and several hooks 3c arranged on the knob 3, and the hooks 3c can be hooked into the hook holes 4a; the rib groove structure includes several connecting ribs 4b arranged on the turntable 4 and several connecting grooves 3d arranged on the knob 3, and the connecting ribs 4b can be inserted into the connecting grooves 3d.

[0023] The second hook structure includes several hook holes 2a on the decorative ring 2 and several hooks 3a arranged on the knob 3, and the hooks 3a can be hooked into the hook holes 2a; the second rib structure includes several connecting ribs 3b arranged on the knob 3 and several connecting grooves 2b arranged on the decorative ring 2, and the connecting ribs 3b can be inserted into the connecting grooves 2b.

[0024] The bracket 6 also has a connection hole 6a, and the spring 5 has a downward-pointing, spike-shaped connection ear 5b, which can be inserted into the connection hole 6a.

[0025] Both hook 1 (3c) and hook 2 (3a) are L-shaped.

[0026] The knob 3 is formed by plastic injection molding, and then is subjected to PVD surface treatment to form a surface metal texture.

[0027] In the embodiment, the guiding effect of the rib groove automatically aligns the knob 3, the rotating disc 4 and the decorative ring 2 during assembly, reduces manual adjustment steps, and improves assembly efficiency.

[0028] In the embodiment, the waterproof rubber 7 and the PCB assembly 8 are also installed in the shell 9, the button 1 and the knob 3 are used in cooperation with the PCB assembly 8 to realize the switching function, which is the prior art; the shell 9 is composed of the upper cover 901, the base assembly 902 and the rear cover 903, which is the prior structure.

[0029] The above components are general standard components or components known to those skilled in the art, and the structure and principle thereof can be known by those skilled in the art through technical manuals or through conventional experimental methods.

[0030] The above embodiment and drawings are not limited to the product form and style of the utility model, and any appropriate changes or modifications made by those skilled in the art shall be considered as not departing from the patent category of the utility model.

Claims

1. A steering wheel rotary switch, comprising a button (1), a decorative ring (2), a knob (3), a turntable (4), a bracket (6), a spring (5), and a housing (9), wherein the bracket (6) is fixedly installed inside the housing (9), the button (1) is slidably connected to the bracket (6), and the turntable (4) is rotatably connected to the bracket (6), characterized in that, The knob (3) is connected to the rotating disc (4) through hook structure one, and the knob (3) and the rotating disc (4) further have rib and groove structure one, the decorative ring (2) is connected to the knob (3) through hook structure two, and the decorative ring (2) and the knob (3) further have rib and groove structure two, the elastic sheet (5) is fixedly installed on the support (6), the shape of the elastic sheet (5) is annular, the elastic sheet (5) has at least two positioning convex parts (5a) which are uniformly distributed, the bottom of the rotating disc (4) has an annular gear part, the gear part has a plurality of positioning notches (4c) which are uniformly distributed, and the positioning convex part (5a) can be clamped into the positioning notch (4c).

2. The steering wheel knob switch according to claim 1, wherein The hook structure one comprises a plurality of hook holes one (4a) formed on the rotating disc (4) and a plurality of hooks one (3c) arranged on the knob (3), and the hook one (3c) can be hung into the hook hole one (4a); the rib and groove structure one comprises a plurality of connecting ribs one (4b) arranged on the rotating disc (4) and a plurality of connecting grooves one (3d) arranged on the knob (3), and the connecting rib one (4b) can be inserted into the connecting groove one (3d).

3. The steering wheel knob switch of claim 2, wherein The hook structure two comprises a plurality of hook holes two (2a) formed on the decorative ring (2) and a plurality of hooks two (3a) arranged on the knob (3), and the hook two (3a) can be hung into the hook hole two (2a); the rib and groove structure two comprises a plurality of connecting ribs two (3b) arranged on the knob (3) and a plurality of connecting grooves two (2b) arranged on the decorative ring (2), and the connecting rib two (3b) can be inserted into the connecting groove two (2b).

4. The steering wheel knob switch of claim 1, wherein The support (6) further has a connecting hole (6a), and the elastic sheet (5) has a downward and thorn-shaped connecting lug (5b), and the connecting lug (5b) can be inserted into the connecting hole (6a).

5. The steering wheel knob switch of claim 3, wherein, The shapes of the hook one (3c) and the hook two (3a) are both L-shaped.

6. The steering wheel knob switch of claim 1, wherein, The knob (3) is formed by plastic injection molding, and then subjected to PVD surface treatment, so as to form a surface metal texture.

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