Touch structure for automobile steering wheel

Abstract

The utility model discloses a touch structure for an automobile steering wheel, which comprises a panel, a support seat is arranged at the bottom of the panel, a mounting hole is arranged on the panel, a button base is arranged in the mounting hole, the button base is arranged in the support seat, and a touch pad, a touch FPC (flexible printed circuit) and a button blanking cap are sequentially arranged in the button base from top to bottom. The top of the touch panel protrudes out of the surface of the button base, a silica gel sheet is arranged at the bottom of the button blanking cap, a circuit board is arranged at the bottom of the silica gel sheet, and the touch FPC is electrically connected with the circuit board. The touch structure for the automobile steering wheel is convenient to use, the panel, the button base, the touch plate, the touch FPC and the button blanking cap are arranged in a matched mode, the touch control function is achieved in a capacitive touch mode in a very small space, and an OFN module is replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile steering wheels, in particular to a touch structure for automobile steering wheels. Background Art

[0002] The car steering wheel switch assembly can use OFN modules to achieve touch control functions. The existing OFN modules have compact structure, small size, high integration, and can be placed inside the button, but they have disadvantages such as high cost, complex structure, and long procurement cycle.

[0003] Based on the above situation, the utility model proposes a touch structure for a car steering wheel, which can effectively solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a touch structure for a car steering wheel. The touch structure for a car steering wheel of the utility model is easy to use, and through the coordination of the panel, the button base, the touch panel, the touch FPC, and the button cover, the touch control function is realized in a very small space by using a capacitive touch method, replacing the OFN module.

[0005] The utility model is realized by the following technical solutions:

[0006] A touch structure for a car steering wheel comprises a panel, a support base is provided at the bottom of the panel, a mounting hole is opened on the panel, a button base is provided in the mounting hole, and the button base is arranged in the support base, a touch pad, a touch FPC, and a button plugging cover are arranged in the button base from top to bottom, the top of the touch pad protrudes from the surface of the button base, a silicone sheet is provided at the bottom of the button plugging cover, a circuit board is provided at the bottom of the silicone sheet, and the touch FPC is electrically connected to the circuit board.

[0007] The purpose of the utility model is to provide a touch structure for a car steering wheel. The touch structure for a car steering wheel of the utility model is easy to use, and through the coordination of the panel, the button base, the touch panel, the touch FPC, and the button cover, the touch control function is realized in a very small space by using a capacitive touch method, replacing the OFN module.

[0008] Preferably, the silicone sheet is provided with a threading hole for passing the cable.

[0009] Preferably, blocking cover engaging holes are provided on both sides of the button base, and a first limiting block is provided on the button blocking cover corresponding to the blocking cover engaging holes.

[0010] Preferably, support base engaging holes are provided on both sides of the button base, and second limiting blocks are provided on the support base corresponding to the support base engaging holes.

[0011] Preferably, a guide rail is provided on the side of the button base, and the support seat is provided with a slide groove matching the guide rail.

[0012] Preferably, the touch panel has a thickness of 1.5 mm.

[0013] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0014] The touch structure for the automobile steering wheel of the utility model is easy to use. Through the coordinated arrangement of the panel, the button base, the touch panel, the touch FPC, and the button cover, the touch control function is realized in a very small space by using a capacitive touch method, replacing the OFN module. The specific beneficial effects are as follows:

[0015] 1. Use capacitive touch to replace OFN module, achieving the same functions as OFN while greatly reducing costs;

[0016] 2. Compared with OFN modules, capacitive touch has a simple structure and smaller size;

[0017] 3. Due to its working principle, the touch panel of the OFN module is only 0.6mm thick and has low strength. The touch panel of the utility model has a thickness of 1.5mm, which is stronger and has higher reliability.

[0018] 4. Due to its working principle, the OFN module is easily disturbed under strong light and cannot operate normally, and its reliability is not high. The utility model uses capacitive touch, and the touch FPC is isolated from the outside world to avoid external interference and has higher reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0021] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure in the AA direction;

[0022] Figure 4 for Figure 2 Schematic diagram of the cross-sectional structure in the BB direction;

[0023] Figure 5 The utility model is a schematic diagram of a top view structure in which the panel is hidden. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the utility model, the preferred implementation scheme of the utility model is described below in conjunction with specific embodiments. However, it should be understood that the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. In order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. The positional relationship described in the drawings is only used for illustrative purposes and cannot be understood as a limitation on this patent.

[0025] Embodiment 1:

[0026] like Figures 1 to 5 As shown, the utility model provides a touch structure for a car steering wheel, including a panel 1, a support base 2 is provided at the bottom of the panel 1, a mounting hole is opened on the panel 1, a button base 3 is provided in the mounting hole, and the button base 3 is arranged in the support base 2, and a touch pad 4, a touch FPC 5, and a button plugging cover 6 are provided in the button base 3 from top to bottom, the top of the touch pad 4 protrudes out of the surface of the button base 3, a silicone sheet 7 is provided at the bottom of the silicone sheet 7, a circuit board 8 is provided at the bottom of the silicone sheet 7, and the touch FPC 5 is electrically connected to the circuit board 8.

[0027] The touch panel 4 is in direct contact with the operator's finger, the surface is painted, the contact area with the finger is about 50mm2, the thickness is about 1.5mm, the bottom is adhered to the touch FPC5, the button base 3 is fixed, and there is no looseness during use;

[0028] The button base 3 is used to fix the touch panel 4 and the touch FPC 5, and isolate the front end of the touch FPC 5 from the outside world, so as to ensure that the front end of the touch FPC 5 is not disturbed by the outside environment. At the same time, the function of the original mechanical button can be realized;

[0029] The button cover 6 cooperates with the button base 3 to fix the touch panel 1 and the touch FPC 5, while realizing the function of the original mechanical button;

[0030] The touch PFC is adhered to the bottom of the touch panel 4 and fixed in the button base 3. The touch FPC 5 passes through the reserved space between the button base 3 and the button cover 6 to reach the outside. A touch sensor is arranged in the adhesion area. When a human finger approaches the touch panel 1, the touch sensor value changes, and is connected to the circuit board 8 through the FPC connector to communicate with the circuit board 8;

[0031] The silicone sheet 7 is placed above the circuit board 8, and the touch PFC passes through the channel reserved on the silicone sheet 7;

[0032] The circuit board 8 uses a capacitive touch chip to process the data of the touch sensor, and converts it into position data and displacement through an algorithm to achieve touch control;

[0033] Panel 1 is the panel 1 of the steering wheel switch.

[0034] Embodiment 2:

[0035] like Figures 1 to 5 As shown, the utility model provides a touch structure for a car steering wheel, including a panel 1, a support base 2 is provided at the bottom of the panel 1, a mounting hole is opened on the panel 1, a button base 3 is provided in the mounting hole, and the button base 3 is arranged in the support base 2, and a touch pad 4, a touch FPC 5, and a button plugging cover 6 are provided in the button base 3 from top to bottom, the top of the touch pad 4 protrudes out of the surface of the button base 3, a silicone sheet 7 is provided at the bottom of the silicone sheet 7, a circuit board 8 is provided at the bottom of the silicone sheet 7, and the touch FPC 5 is electrically connected to the circuit board 8.

[0036] The silicone sheet 7 is provided with a threading hole 71 for passing the cable.

[0037] The threading hole 71 is used to pass the connection line between the touch FPC 5 and the circuit board 8 .

[0038] Furthermore, in another embodiment, both sides of the button base 3 are provided with blocking cover engaging holes 31 , and the button blocking cover 6 is provided with a first limiting block 61 corresponding to the blocking cover engaging holes 31 .

[0039] The two first limit blocks 61 can be inserted into the blocking cover engaging holes 31 .

[0040] Furthermore, in another embodiment, support base engaging holes 32 are provided on both sides of the button base 3 , and second limit blocks 21 are provided on the support base 2 corresponding to the support base engaging holes 32 .

[0041] The two second limit blocks 21 can be inserted into the support seat engaging holes 32 .

[0042] Furthermore, in another embodiment, a guide rail 33 is provided on the side of the button base 3 , and a slide groove matching the guide rail 33 is provided on the support base 2 .

[0043] The guide rail 33 slides in the slide groove, which facilitates the assembly between the button base 3 and the support base 2.

[0044] Furthermore, in another embodiment, the thickness of the touch panel 4 is 1.5 mm.

[0045] According to the description and drawings of the present invention, those skilled in the art can easily manufacture or use the touch structure for a car steering wheel of the present invention, and can produce the positive effects recorded in the present invention.

[0046] Unless otherwise specified, in the present invention, the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicating orientation or positional relationships are based on the orientation or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the orientation or positional relationship in the present invention are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood in conjunction with the drawings and according to specific circumstances.

[0047] Unless otherwise specified and limited, in the present invention, the terms "disposed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A touch structure for a car steering wheel, characterized in that: It includes a panel, a support base is provided at the bottom of the panel, a mounting hole is opened on the panel, a button base is provided in the mounting hole, and the button base is arranged in the support base, a touch pad, a touch FPC, and a button plugging cover are arranged in the button base from top to bottom, the top of the touch pad protrudes from the surface of the button base, a silicone sheet is provided at the bottom of the button plugging cover, a circuit board is provided at the bottom of the silicone sheet, and the touch FPC is electrically connected to the circuit board.

2. The touch structure for a car steering wheel according to claim 1, characterized in that: The silicone sheet is provided with a threading hole for passing the cable.

3. The touch structure for a car steering wheel according to claim 1, characterized in that: The button base is provided with blocking cover engaging holes on both sides, and the button blocking cover is provided with a first limiting block corresponding to the blocking cover engaging holes.

4. The touch structure for a car steering wheel according to claim 1, characterized in that: Support base engaging holes are arranged on both sides of the button base, and second limiting blocks are arranged on the support base corresponding to the support base engaging holes.

5. The touch structure for a car steering wheel according to claim 1, characterized in that: A guide rail is provided on the side of the button base, and a slide groove matching the guide rail is provided on the support seat.

6. The touch structure for a car steering wheel according to claim 1, characterized in that: The thickness of the touch panel is 1.5 mm.

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