Steering wheel pressing vibration switch structure

Abstract

The utility model relates to the technical field of electric control switches, in particular to a steering wheel pressing vibration switch structure, which comprises an outer shell, a PCB (printed circuit board) arranged in the outer shell and an infrared sensor arranged on the PCB, and an inner shell arranged on the outer shell and used for changing the distance between the outer shell and the infrared sensor to realize pressure sensing when being pressed. A LENS panel for fingers to press is arranged on the face, away from the outer shell, of the inner shell, a linear motor is arranged at the end, close to the LENS panel, of the inner shell, the linear motor drives the inner shell to vibrate up and down and transmits vibration sense to the LENS panel when vibrating, an elastic piece is arranged between the outer shell and the inner shell, the middle of the elastic piece is fixedly arranged on the outer shell, and the inner shell and the LENS panel are fixed to the two ends of the elastic piece. And when the LENS panel is pressed, the inner shell is pressed downwards, so that the two ends of the elastic sheet deform and pressure induction is realized. The utility model has the beneficial effects that the linear motor and the elastic sheet are adopted to realize pressure induction and vibration feedback, solve the problems of falling off of the vibration motor and failure in a low-temperature environment, and are integrated with the steering wheel.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile switches, in particular to a steering wheel pressing vibration switch structure. Background Art

[0002] In the existing industry, most of the multi-function switches on the steering wheel are independent on the left / right sides, and there is no integrated type with touch + pressure sensing + linear motor vibration feedback, which is not beautiful in appearance. In the existing technology, touch + pressure sensing + vibration feedback basically adopts the actuator + rubber type. In this solution, there is a risk of falling off because the fitting direction of the actuator is consistent with the vibration direction, and there is a risk of rubber not rebounding when pressed in a low temperature environment, resulting in pressure failure problems.

[0003] The utility model with the existing utility model patent number CN202223425407.8 belongs to the technical field of automobile accessories, and specifically relates to a steering wheel touch-pressure vibration switch. The steering wheel touch-pressure vibration switch of the utility model includes: a button panel is provided on the shell; a flexible touch antenna is provided on the back of the button panel, and is connected to the controller for obtaining the touch signal on the button panel; a vibration motor is provided between the flexible touch antenna and the pressure sensor through a pressing bracket, and is connected to the controller; the pressure sensor is provided on the back of the flexible touch antenna, and is connected to the controller for collecting the pressing signal; when the controller receives the touch signal sent by the flexible touch antenna and the pressing signal sent by the pressure sensor at the same time, the controller is suitable for controlling the vibration of the vibration motor. The utility model adopts a touch-pressure mode combining a flexible touch antenna and a pressure sensor. When the controller receives the touch signal and the pressing signal at the same time, the controller controls the vibration feedback of the vibration motor to increase the difficulty of effective touch, and avoid the false triggering of the switch causing the vehicle function system to be mistakenly turned on.

[0004] However, the above patent is not integrated with the steering wheel, and in this solution, because the fitting direction of the flexible touch antenna is consistent with the vibration direction of the vibration motor, there is a risk of falling off, and the flexible touch antenna may not rebound when pressed in a low temperature environment, resulting in pressure failure. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide an integrated steering wheel push-to-vibration switch which adopts a linear motor and a spring to realize pressure sensing and vibration feedback and solves the problems of vibration motor falling off and failure in low temperature environment in view of the above-mentioned deficiencies of the prior art.

[0006] In order to achieve the above-mentioned purpose, the following technical scheme is adopted: a steering wheel press vibration switch structure, comprising an outer shell, a PCB board is arranged in the outer shell, an infrared sensor is arranged on the PCB board, the outer shell is provided with an inner shell which changes the distance between the inner shell and the infrared sensor when pressed to realize pressure sensing, the inner shell is provided with a LENS panel for pressing by fingers on one side away from the outer shell, a linear motor is arranged at one end of the inner shell close to the LENS panel, when the linear motor vibrates, it drives the inner shell to vibrate up and down and transmits the vibration to the LENS panel, a spring sheet is arranged between the outer shell and the inner shell, the middle part of the spring sheet is fixed on the outer shell, and the inner shell and the LENS panel are fixed at both ends, when the LENS panel is pressed, the inner shell is pressed down to deform the two ends of the spring sheet and realize pressure sensing.

[0007] With the above technical solution, the LENS panel is a touch panel, and identification characters are set on the pressing end of the LENS panel. The finger can be pressed on the identification characters to drive the LENS panel to deform and trigger the deformation of the two ends of the spring sheet. The middle part of the spring sheet is fixed to the outer shell to form a support point. The two ends of the spring sheet can be deformed and the distance between the inner shell and the infrared sensor can be changed. The infrared sensor transmits a signal to the linear motor. The vibration of the linear motor in the inner shell will cause the inner shell to vibrate up and down. At the same time, the vibration of the inner shell will also vibrate the LENS panel, thereby generating a vibrating feel. The inner shell is fixed to the two ends of the spring sheet. When the inner shell is subjected to the up and down vibration force of the linear motor, it will also vibrate in the direction perpendicular to the force. The direction of the force caused by the vibration of the linear motor will be described in the subsequent specific implementation methods. The inner shell and the LENS panel are fixed to the springs. Therefore, pressing the LENS panel can drive the inner shell to move downward while also pressing the springs downward and deforming them, so that the distance between the inner shell and the infrared sensor changes to achieve pressure sensing. At the same time, the springs are combined with the linear motor. Since the LENS panel is installed on the outside, it will not directly contact the outside world. Therefore, the situation of failure to rebound after pressing in a low temperature environment will not occur. In addition, since the activity direction of the springs is inconsistent with the vibration direction of the linear motor, the risk of falling off is greatly reduced, thereby increasing the overall reliability of the product.

[0008] A steering wheel push-and-vibration switch structure can be further configured as follows: a convex side of the inner shell facing the infrared sensor is provided with a reflective protrusion passing through a spring sheet, and a reflective surface is provided on the top of the reflective protrusion which changes the distance between the reflective protrusion and the infrared sensor when pressed to achieve pressure sensing.

[0009] By adopting the above technical solution, when the LENS panel is pressed, the identification characters on the LENS panel are set exactly at the two end positions of the spring. After pressing the LENS panel, the inner shell moves downward and drives the spring to be pressed downward and deformed, and the reflective protrusion also moves downward accordingly. Since the distance between the reflective surface and the infrared sensor changes, pressure sensing can be achieved. Moreover, since the active distance of the reflective protrusion is small, it is also necessary to set the reflective protrusion to a certain length to pass through the spring to shorten the distance between the reflective protrusion and the infrared sensor.

[0010] A steering wheel push-and-vibration switch structure can be further configured as follows: a guide groove for guiding the linear motor is obliquely opened at one end of the inner shell close to the LENS panel, and the linear motor causes the inner shell to vibrate up and down when moving in the guide groove.

[0011] By adopting the above technical solution, the guide groove can control the direction of the linear motor during vibration, and the guide groove is opened at an angle above the inner shell facing the LENS panel. Therefore, the linear motor just vibrates obliquely upward and downward along the length direction of the guide groove, and the linear motor is also just located in the arc area of ​​the LENS panel. When the linear motor vibrates in the guide groove, it will also produce a certain displacement due to the vibration. Therefore, when driving the inner shell to vibrate up and down, it will also form a component force in the vertical direction to vibrate the LEN panel to form a vibrating feel after pressing.

[0012] A steering wheel press vibration switch structure can be further configured as follows: an insertion opening is opened in the middle of the spring sheet for a reflective protrusion to pass through and move axially, first bolts for fixing the spring sheet to the outer shell are passed through the two ends of the insertion opening along the width direction of the spring sheet, second bolts passing through the spring sheet and the inner shell are provided at the two ends of the spring sheet along the length direction of the spring sheet, and a nut sleeve is provided between the LENS panel and the inner shell for the second bolt to pass through and fix the spring sheet, the inner shell and the LENS panel.

[0013] By adopting the above technical solution, the extension port is set in the middle position of the spring sheet and is fixed to the outer shell by a first bolt, so that the spring sheet has a local support point and matches the fixed components. At the same time, the nut sleeve is fixed in the LENS panel, and the second bolt passes through the inner shell and the spring sheet in turn and then is threadedly connected with the nut sleeve to complete the fixation. Therefore, the inner shell and the spring sheet are fixed on the LENS panel together. When the LENS panel is deformed, the inner shell will also drive the reflective surface to be pressed down, so that the distance between the reflective surface and the infrared sensor changes to form pressure sensing.

[0014] A steering wheel push-and-vibration switch structure can be further configured as follows: a LENS panel is provided with a mounting protrusion on one side facing the inner shell, a mounting groove for inserting a nut sleeve and having the same shape as the nut sleeve is provided on the side of the mounting protrusion, and a bolt hole for a second bolt to pass through and fix the nut sleeve is provided on the top of the mounting protrusion.

[0015] By adopting the above technical solution, the installation protrusion is first extended into the inner shell and abuts the inner shell, and then the nut sleeve is extended into the installation groove. Since the installation groove and the nut sleeve have the same shape, the nut sleeve will not rotate after installation. Then the second bolt is inserted from both ends of the spring piece in the length direction and fixed with the nut sleeve. In this way, the spring piece, the inner shell and the LENS panel can be fixed at the same time. The installation is stable and the bolts are not easy to loosen, so that the entire push-vibration switch can be better integrated with the steering wheel, which is more beautiful and easier to assemble, and the number of screws can be effectively reduced.

[0016] The utility model is further described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional state diagram of an embodiment of the utility model.

[0018] Figure 2 For the utility model embodiment Figure 1 The structure diagram after removing the LENS panel.

[0019] Figure 3 In the embodiment of the utility model Figure 2 Explosion diagram.

[0020] Figure 4 It is a schematic diagram of the structure of the inner shell in the embodiment of the utility model.

[0021] Figure 5 In the embodiment of the utility model Figure 2 Left view of .

[0022] Figure 6 In the embodiment of the utility model Figure 5 AA section view.

[0023] Figure 7 For the utility model embodiment Figure 1 Schematic diagram of the structure of the LENS panel.

[0024] In the figure: 1. outer shell; 2. PCB board; 3. infrared sensor; 4. LENS panel; 5. inner shell; 11. reflective protrusion; 12. linear motor; 13. guide groove; 15. reflective surface; 16. spring; 21. extension port; 22. first bolt; 23. second bolt; 24. nut sleeve; 25. mounting protrusion; 26. mounting groove; 27. bolt hole. Implementation

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example: Figure 1-Figure 7 A steering wheel pressing vibration switch structure as shown in Figure 1 and Figure 6 As shown, it includes a shell 1, a PCB board 2 is arranged inside the shell 1, an infrared sensor 3 is arranged on the PCB board 2, the shell 1 is provided with an inner shell 5 which changes the distance between the inner shell 5 and the infrared sensor 3 to realize pressure sensing when pressed, the inner shell 5 is away from the shell 1 and is covered with a LENS panel 4 for finger pressing, the LENS panel 4 is a touch panel, the inner shell 5 is convexly provided with a reflective protrusion 11 on the side facing the infrared sensor 3, the top of the reflective protrusion 11 is provided with a reflective surface 15 which changes the distance between the inner shell 5 and the infrared sensor 3 to realize pressure sensing when pressed, a linear motor 12 is arranged at one end of the inner shell 5 close to the LENS panel 4, when the linear motor 12 vibrates, it drives the inner shell 5 to vibrate up and down and transmits the vibration to the LENS panel 4, and the inner shell 5 is obliquely provided with a guide groove 13 for guiding the linear motor 12 at one end close to the LENS panel 4, as shown in FIG. Figure 6As shown, the vibration direction of the linear motor 12 is marked in the cross-sectional view. The linear motor 12 vibrates along the length direction of the guide groove 13 and forms a component force in the vertical direction of the direction and causes the inner shell 5 to vibrate up and down. The vibration of the inner shell 5 drives the LENS panel 4 to vibrate and forms a vibrating feel. A spring 16 is provided between the outer shell 1 and the inner shell 5. The middle part of the spring 16 is fixed on the outer shell 1, and the inner shell 5 and the LENS panel 4 are fixed at both ends. When the LENS panel 4 is pressed, the inner shell 5 is pressed down to deform the two ends of the spring 16 and realize pressure sensing. When the LENS panel 4 is pressed, the identification characters on the LENS panel 4 are just set at the two end positions of the spring 16. After pressing the LENS panel 4, the inner shell 5 moves downward and causes the spring 16 to be pressed downward and deformed, and the reflective protrusion 11 also moves downward accordingly. Therefore, the distance between the reflective surface 15 on the reflective protrusion 11 and the infrared sensor 3 changes, thereby realizing pressure sensing. The middle part of the spring 16 is provided with an extension port 21 for the reflective protrusion 14 to pass through and move axially. The two ends of the extension port 21 along the width direction of the spring sheet are penetrated with first bolts 22 for fixing the spring sheet 16 on the outer shell 1, and the two ends of the spring sheet 16 along the length direction of the spring sheet are provided with second bolts 23 passing through the spring sheet 16 and the inner shell 5. A nut sleeve 24 is provided between the LENS panel 4 and the inner shell 5 for the second bolt 23 to pass through and fix the spring sheet 16, the inner shell 5 and the LENS panel 4. The extension port 21 is set in the middle position of the spring sheet 16 and is fixed to the outer shell 1 by the first bolt 22, so that the spring sheet 16 has a local support point and matches the fixing parts. At the same time, the nut sleeve 24 is fixed in the LENS panel 4, and the second bolt 23 passes through the inner shell 5 and the spring sheet 16 in turn and is then threadedly connected with the nut sleeve 24 to complete the fixation. Therefore, the inner shell 5 and the spring sheet 16 are fixed on the LENS panel 4 together. When the LENS panel 4 is deformed, the inner shell 5 will also drive the reflective surface 15 to be pressed down, so that the distance between the reflective surface 15 and the infrared sensor 3 changes to form pressure sensing, such as Figure 7As shown, the LENS panel 4 is provided with a mounting protrusion 25 on one side facing the inner shell 5, and a mounting groove 26 for inserting the nut sleeve 24 and having the same shape as the nut sleeve 24 is provided on the side of the mounting protrusion 25. A bolt hole 27 for the second bolt 23 to penetrate and fix the nut sleeve 24 is provided on the top of the mounting protrusion 25. First, the mounting protrusion 25 is extended into the inner shell 5 and abuts against the inner shell 5, and then the nut sleeve 24 is extended into the mounting groove 26. Since the mounting groove 26 has the same shape as the nut sleeve 24, the nut sleeve 24 will not rotate after installation, and then the second bolt 23 is removed from the spring sheet. The two ends of 16 in the length direction are inserted into and fixed with the nut sleeve 24, so that the spring piece 16, the inner shell 5 and the LENS panel 4 can be fixed at the same time, so that the fixing bolts are less likely to loosen. Since the spring piece 16 is combined with the linear motor 12 at the same time, and the LENS panel 4 is covered on the outside, it will not be directly in contact with the outside world, so the situation of failure to rebound after being pressed in a low temperature environment will not occur, and since the activity direction of the spring piece 16 is inconsistent with the vibration direction of the linear motor 12, the risk of falling off is greatly reduced, and the overall reliability of the product is increased.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions recorded in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A steering wheel push-and-vibration switch structure, comprising a housing (1), a PCB board (2) disposed in the housing (1), and an infrared sensor (3) on the PCB board (2), characterized in that: The outer shell (1) is provided with an inner shell (5) which changes the distance between the inner shell (5) and the infrared sensor (3) when pressed to achieve pressure sensing. The inner shell (5) is provided with a LENS panel (4) for being pressed by a finger on a side away from the outer shell (1). The inner shell (5) is provided with a linear motor (12) on one end close to the LENS panel (4). When the linear motor (12) vibrates, it drives the inner shell (5) to vibrate up and down and transmits the vibration to the LENS panel (4). A spring sheet (16) is provided between the outer shell (1) and the inner shell (5). The middle part of the spring sheet (16) is fixed on the outer shell (1), and the inner shell (5) and the LENS panel (4) are fixed at both ends. When the LENS panel (4) is pressed, the inner shell (5) is pressed downward to deform the two ends of the spring sheet (16) and achieve pressure sensing.

2. A steering wheel pressing vibration switch structure according to claim 1, characterized in that: The inner shell (5) is provided with a reflective protrusion (11) that passes through the spring sheet (16) on one side thereof facing the infrared sensor (3), and a reflective surface (15) is provided on the top of the reflective protrusion (11) that changes the distance between the reflective protrusion and the infrared sensor (3) when pressed to achieve pressure sensing.

3. A steering wheel pressing vibration switch structure according to claim 1 or 2, characterized in that: A guide groove (13) for guiding the linear motor (12) to move is obliquely provided at one end of the inner shell (5) close to the LENS panel, and when the linear motor (12) moves in the guide groove (13), the inner shell (5) vibrates up and down.

4. The steering wheel pressing vibration switch structure according to claim 1, characterized in that: The spring sheet (16) is provided with an insertion opening (21) in the middle thereof for the reflective protrusion (11) to pass through and to move axially; first bolts (22) for fixing the spring sheet (16) to the outer shell (1) are passed through at both ends of the insertion opening (21) in the width direction of the spring sheet; second bolts (23) for passing through the spring sheet (16) and the inner shell (5) are provided at both ends of the spring sheet in the length direction of the spring sheet; and nut sleeves (24) for passing through the second bolts (23) and fixing the spring sheet (16), the inner shell (5) and the LENS panel (4) are provided between the LENS panel (4) and the inner shell (5).

5. A steering wheel pressing vibration switch structure according to claim 1 or 4, characterized in that: The LENS panel (4) is provided with a mounting protrusion (25) on one side facing the inner shell (5), a mounting groove (26) having the same shape as the nut sleeve (24) and for inserting the nut sleeve (24) is provided on the side of the mounting protrusion (25), and a bolt hole (27) for a second bolt (23) to penetrate and fix the nut sleeve (24) is provided on the top of the mounting protrusion (25).

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