Key switch of automobile steering wheel

Abstract

The utility model discloses an automobile steering wheel key switch, which relates to the technical field of passenger car steering wheel key switches and comprises a shell and a base, the base is adaptively embedded into the shell, a PCB (printed circuit board) is arranged at the top end of the base and positioned in the shell, a turntable and a plurality of ejector rods are movably arranged in the shell, and the turntable and the ejector rods are arranged on the base. The top rod is located at the bottom end of one side of the rotating disc, conductive rubber is arranged at the bottom end of the top rod, the conductive rubber is arranged at the top end of the PCB, a shifting rod is arranged at the top end of the rotating disc in a matched mode, and the shifting rod is movably connected with the shell in a clamped mode. The automobile switch has the beneficial effects of simplicity and convenience in adjustment, small occupied space, wide functional layout, high adaptability and capability of meeting the increasing functional layout requirements of the automobile switch.

Description

Technical Field

[0001] The utility model relates to the technical field of passenger car steering wheel button switches, and specifically, to an automobile steering wheel button switch. Background Technique

[0002] Steering wheel buttons are operating buttons installed on the automobile steering wheel, aiming to provide a convenient way for drivers to control vehicle functions and reduce driver distraction during driving. Steering wheel buttons usually have multiple functions, such as: Multimedia control: including adjusting volume, switching songs, selecting radio channels, etc. For example, pressing the volume "+" button can increase the audio volume. Phone answering and hanging up: facilitating the driver to safely handle phone calls while driving. When there is an incoming call, pressing the answer button can initiate a call. Cruise control: such as setting and adjusting the speed of the cruise control and turning on or off the adaptive cruise function. For example, pressing the "SET" button can set the current vehicle speed as the cruise speed. Trip computer information switching: viewing information such as vehicle fuel consumption, mileage, and tire pressure. Pressing the corresponding button can switch between different information pages. Therefore, the design purpose of the steering wheel buttons is to enable the driver to operate various vehicle functions more conveniently and quickly without affecting driving safety, improving driving comfort and convenience.

[0003] Currently, more and more functions of existing passenger cars are concentrated on the steering wheel buttons. Most lever buttons adopt a single hinge and guide groove guide rib structure to achieve three functions with one button. Their functional requirements are numerous but the available implementation space is small. As more functions are integrated into the switch in the later stage, the lever buttons cannot meet the functional layout of the entire switch.

[0004] Regarding the problems in the related technology, no effective solution has been proposed yet. Content of the Utility Model

[0005] Regarding the problems in the related technology, the purpose of the present utility model is to propose an automobile steering wheel button switch to overcome the above-mentioned technical problems existing in the existing related technology.

[0006] The technical solution of the present utility model is realized as follows:

[0007] An automobile steering wheel button switch includes a housing and a base. The base is adaptively embedded in the housing. A PCB board is provided at the top end of the base and inside the housing. A turntable and several ejector rods are movably arranged inside the housing. The ejector rods are located at the bottom end on one side of the turntable, and a conductive rubber is provided at the bottom end of the ejector rods. The conductive rubber is provided on the top end of the PCB board. A lever is adaptively provided at the top end of the turntable, and the lever is movably clamped with the housing.

[0008] Further, sliding grooves are respectively provided on both sides of the lever, and convex columns adapted to the sliding grooves are provided in the housing, and the sliding grooves are movably sleeved on the convex columns.

[0009] Further, the turntable includes a rotating ring and a pressing rod connected to the rotating ring. A convex seat adapted to the rotating ring is provided in the housing. The rotating ring is movably clamped with the convex seat, and the bottom ends of the pressing rods are respectively in contact with the ejector rod.

[0010] Further, a guiding groove is provided in the housing. The ejector rod is movably inserted into the guiding groove, and the bottom end of the ejector rod is in contact with the conductive rubber.

[0011] Advantages of the present utility model:

[0012] The pressing function of the lever of the present utility model is a semi-floating structure. When it needs to be toggled, a force is applied to any end of the lever. The lever presses down, and with the cooperation of the turntable, the ejector rod, and the conductive rubber, the ejector rod arranged below the pressing point of the turntable makes the conductive rubber touch the gold finger of the PCB board to close the circuit. After the circuit is turned on and the force is withdrawn, the downward pressure is released, the conductive rubber rebounds, the structure resets, the circuit is disconnected and returns to the normal state. It is not only simple to adjust, but also small in occupied space, with a wide function layout and high adaptability, meeting the increasing functional layout requirements of automotive switches.

[0013] Other features and advantages of the present utility model will be described in the following specification, and part of them will become obvious from the specification, or will be understood by implementing the present utility model. The objectives and other advantages of the present utility model are achieved and obtained by the structures specifically pointed out in the specification and the drawings.

[0014] To make the above objectives, features, and advantages of the present utility model more obvious and understandable, the following specific preferred embodiments are given, and in conjunction with the accompanying drawings, detailed descriptions are as follows. Description of the Drawings

[0015] 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 embodiments. Obviously, the following described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 is a schematic structural diagram of an automotive steering wheel button switch according to an embodiment of the present utility model;

[0017] Figure 2 is a schematic diagram of the turntable of the automotive steering wheel button switch according to an embodiment of the present utility model;

[0018] Figure 3It is a partial cross-sectional schematic view of an automotive steering wheel button switch according to an embodiment of the present utility model.

[0019] In the figure:

[0020] 1. Lever; 2. Turntable; 3. Thumb rod; 4. Housing; 5. Conductive rubber; 6. PCB board; 7. Base;

[0021] 11. Slide groove; 12. Convex post;

[0022] 21. Rotating ring; 22. Pressing rod; 23. Convex seat; 31. Guide groove. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with 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 the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present utility model.

[0024] According to an embodiment of the present utility model, an automotive steering wheel button switch is provided.

[0025] As Figures 1 - 3 shown, an automotive steering wheel button switch includes a housing 4 and a base 7. The base 7 is adaptively embedded in the housing 4. A PCB board 6 is provided at the top end of the base 7 and inside the housing 4. A turntable 2 and a plurality of thumb rods 3 are movably provided in the housing 4. The thumb rods 3 are located at the bottom end on one side of the turntable 2, and a conductive rubber 5 is provided at the bottom end of the thumb rod 3. The conductive rubber 5 is provided on the top end of the PCB board 6. A lever 1 is adaptively provided at the top end of the turntable 2, and the lever 1 is movably clamped with the housing 4.

[0026] In addition, slide grooves 11 are respectively provided on both sides of the lever 1, and convex posts 12 adapted to the slide grooves 11 are provided in the housing 4. The slide grooves 11 are movably sleeved on the convex posts 12.

[0027] In this technical solution, the lever 1 cooperates with the slide grooves 11 to rotate along the convex posts 12, realizing that the lever 1 drives the turntable 2 to rotate. Thus, when it is necessary to toggle, by applying a force at any end of the lever 1, the downward pressure of the lever 1 driving the turntable 2 can be realized.

[0028] In addition, the turntable 2 includes a rotating ring 21 and a pressing rod 22 connected to the rotating ring 21. A convex seat 23 adapted to the rotating ring 21 is provided in the housing 4. The rotating ring 21 is movably clamped with the convex seat 23, and the bottom ends of the pressing rods 22 are respectively in contact with the thumb rods 3. Among them, a guide groove 31 is provided in the housing 4. The thumb rods 3 are movably inserted through the guide groove 31, and the bottom ends of the thumb rods 3 are in contact with the conductive rubber 5.

[0029] Specifically, the pressure rod 22 cooperates with the swivel ring 21 to rotate along the convex seat 23. When a force is applied to either end of the lever 1, the lever 1 can drive the swivel ring 21 to cooperate with the pressure rod 22 to transmit a downward pressure force to the ejector rod 3. The ejector rod 3 moves downward to press the conductive rubber 5 directly below it, and the contact touches the gold finger of the PCB board 6, closing the circuit to conduct electricity and realizing the function. After the force is withdrawn, under the restoring force of the tactile switch, the structure resets and the circuit is disconnected.

[0030] In summary, by means of the above technical solution of the present invention, the following effects can be achieved: The downward pressure function of the lever 1 is a semi-floating structure. When it needs to be toggled, a force is applied to either end of the lever 1. The lever 1 presses down, and with the cooperation of the turntable 2, the ejector rod 3, and the conductive rubber 5, the ejector rod 3 arranged movably below the pressure point of the turntable 2 causes the conductive rubber 5 to touch the gold finger of the PCB board 6 to close the loop and conduct electricity. After the force is withdrawn and the downward pressure is released, the conductive rubber 5 rebounds, the structure resets, and the circuit is disconnected and returns to its normal state. It is not only simple to adjust, but also occupies a small space, has a wide function layout, and high adaptability, meeting the increasing functional layout requirements of automotive switches.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A car steering wheel key switch, comprising a housing (4) and a base (7), wherein the base (7) is adapted to be embedded in the housing (4), and a PCB board (6) is provided at the top of the base (7) and located in the housing (4), characterized in that: A rotating disk (2) and a plurality of push rods (3) are movably arranged in the housing (4); the push rods (3) are located at the bottom end of one side of the rotating disk (2); and a conductive rubber (5) is arranged at the bottom end of the push rods (3); the conductive rubber (5) is arranged at the top end of the PCB board (6); a lever (1) is adapted to be arranged at the top end of the rotating disk (2); and the lever (1) is movably engaged with the housing (4).

2. The automobile steering wheel key switch according to claim 1, characterized in that: The lever (1) is provided with sliding grooves (11) on both sides respectively, and the housing (4) is provided with a convex column (12) adapted to the sliding groove (11), and the sliding groove (11) is movably sleeved on the convex column (12).

3. The automobile steering wheel key switch according to claim 1, characterized in that: The rotating disk (2) comprises a rotating ring (21) and a pressure rod (22) connected to the rotating ring (21); a convex seat (23) adapted to the rotating ring (21) is provided in the housing (4); the rotating ring (21) is movably engaged with the convex seat (23), and the bottom end of the pressure rod (22) is respectively in contact with the top rod (3).

4. The automobile steering wheel key switch according to claim 3, characterized in that: A guide groove (31) is provided in the housing (4), the push rod (3) is movably inserted into the guide groove (31), and the bottom end of the push rod (3) is in contact with the conductive rubber (5).

Images