Automobile switch touch vibration structure

Abstract

The utility model provides an automobile switch touch vibration structure which comprises a shell, a PCBA circuit board is arranged in the shell, an installation framework is connected to the shell in a threaded mode, a piezoelectric ceramic assembly and an FPC circuit board are fixedly connected to the upper end face of the installation framework, and the piezoelectric ceramic assembly is connected with the FPC circuit board. A panel is arranged above the piezoelectric ceramic assembly and the FPC circuit board, the lower surface of the panel is fixedly connected with a touch film, and the touch film and the FPC circuit board are both connected with the PCBA circuit board. The touch vibration of the steering wheel switch is finer and smoother, and the higher requirement of a user for the vibration hand feeling of the steering wheel switch can be well met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile switch, especially to a touch vibration structure of automobile switch. BACKGROUND

[0002] With the rapid development of electronic, computer and internet technology, the intelligent degree of automobile is higher and higher, and many intelligent and electronic functions will be applied to the latest model of automobile. In order to meet the needs of users, some automobile manufacturers set vibration function in the switch of steering wheel, when pressing the switch button, vibration feeling will be triggered. The vibration motor is used in most of the existing vibration switch to realize vibration function, and the vibration motor is also widely used in mobile phones, tablets and other devices, which can not meet the higher requirements of some users on vibration feeling of steering wheel switch, therefore, a new touch vibration structure of automobile switch needs to be invented. SUMMARY

[0003] The utility model discloses a kind of touch vibration structures of automobile switch, to meet the higher needs of user on vibration feeling of steering wheel switch, to provide a kind of vibration more delicate touch vibration structure of automobile switch.

[0004] The utility model discloses the technical scheme that the technical problem thereof adopts is as follows:

[0005] A touch vibration structure of automobile switch, including shell, PCBA circuit board is arranged in the shell, the shell is screw-connected with installation framework, the upper end surface of the installation framework is fixedly connected with piezoelectric ceramic assembly and FPC circuit board, the piezoelectric ceramic assembly and FPC circuit board are connected;The upper of piezoelectric ceramic assembly and FPC circuit board is provided with panel, the lower surface of the panel is fixedly connected with touch film, the touch film, FPC circuit board are connected with PCBA circuit board.

[0006] Preferably, in combination with the above scheme, the piezoelectric ceramic assembly is provided with two groups, and is respectively arranged on the left and right sides of the installation framework.

[0007] Preferably, in combination with the above scheme, the shell is connected with the installation framework by screw.

[0008] Preferably, in combination with the above scheme, a plurality of groups of mounting holes are formed in the shell, damping pads with through holes are arranged in the mounting holes, mounting bosses are arranged at the lower end of the installation framework, and the screws pass through the mounting holes, the damping pads and the mounting bosses in sequence.

[0009] Preferably, in combination with the above scheme, the damping pad is provided with four groups, and is respectively arranged on the left and right sides of the installation framework.

[0010] Preferably, in combination with the above scheme, the lower part of the shell is connected with the base through the buckle structure, and the PCBA circuit board is fixedly connected on the base.

[0011] Preferably, in combination with the above scheme, the panel is connected with the mounting framework through the buckle structure.

[0012] Preferably, in combination with the above scheme, the panel is fixedly connected with the touch film through gluing.

[0013] Preferably, in combination with the above scheme, the piezoelectric ceramic assembly and the FPC circuit board are fixedly connected with the mounting framework through gluing.

[0014] Preferably, in combination with the above scheme, the touch film is provided with a plurality of groups of conductive contacts, and each group of conductive contacts corresponds to one functional pattern on the panel.

[0015] The automobile switch touch vibration structure of the utility model, replaced the vibration motor structure in traditional automobile steering wheel switch, through setting piezoelectric ceramic assembly to realize more unique automobile switch touch vibration effect, its vibration is even and delicate, can satisfy the higher requirement of user to vibration hand feeling very well.

[0016] The utility model will be described in more detail in combination with drawings and examples. DRAWINGS

[0017] Figure 1 It is the automobile switch touch vibration structure diagram of the utility model.

[0018] Figure 2 It is the partial explosion drawing of the automobile switch touch vibration structure of the utility model.

[0019] Figure 3 It is the explosion drawing of the automobile switch touch vibration structure of the utility model.

[0020] Figure 4 It is another direction explosion drawing of the automobile switch touch vibration structure of the utility model.

[0021] Figure 5 It is the circuit structure diagram in the utility model. DETAILED DESCRIPTION

[0022] As Figures 1 to 4A car switch touch vibration structure includes a housing 2, in which a PCBA circuit board 3 is disposed. A mounting frame 5 is screwed onto the housing 2. A piezoelectric ceramic component 6 and an FPC circuit board 7 are fixedly connected to the upper end face of the mounting frame 5. The piezoelectric ceramic component 6 and the FPC circuit board 7 are connected. A panel 9 is disposed above the piezoelectric ceramic component 6 and the FPC circuit board 7. A touch film 8 is fixedly connected to the lower surface of the panel 9. The touch film 8 and the FPC circuit board 7 are both connected to the PCBA circuit board 3.

[0023] To ensure more uniform overall vibration of the switch and a more reasonable vibration range, two sets of piezoelectric ceramic components 6 are provided, respectively positioned on the left and right sides of the mounting frame 5. For easier arrangement of the piezoelectric ceramic components 6 and to design a reasonable vibration range, the piezoelectric ceramic components 6 can be positioned on both sides of the conductive contacts 81 on the touch film 8.

[0024] To facilitate the assembly of the outer shell 2 and the mounting frame 5, the outer shell 2 and the mounting frame 5 are connected by screws 10.

[0025] In order to achieve a more delicate vibration sensation and reduce the noise generated by vibration by setting a shock-absorbing structure between the outer shell 2 and the mounting frame 5, the outer shell 2 is provided with a number of mounting holes 21, and a shock-absorbing pad 4 with a through hole 41 is provided in the mounting hole 21. The lower end of the mounting frame 5 is provided with a mounting boss 51, and the screw 10 passes through the mounting hole 21, the shock-absorbing pad 4 in sequence and is connected to the mounting boss 51.

[0026] To ensure more uniform shock absorption, four sets of shock-absorbing pads 4 are provided, which are symmetrically arranged on the left and right sides of the mounting frame 5.

[0027] To facilitate the assembly of parts, the lower part of the outer shell 2 is connected to the base 1 via a snap-fit ​​structure, and the PCBA circuit board 3 is fixedly connected to the base 1.

[0028] To facilitate the assembly of the panel 9 with the mounting frame 5, the panel 9 is connected to the mounting frame 5 via a snap-fit ​​structure.

[0029] In order to better fix the touch film 8 to the lower surface of the panel 9, the panel 9 is fixedly connected to the touch film 8 by adhesive.

[0030] In order to better fix the piezoelectric ceramic component 6 and the FPC circuit board 7 to the mounting frame 5 and prevent them from falling off, the piezoelectric ceramic component 6 and the FPC circuit board 7 are both fixedly connected to the mounting frame 5 by adhesive.

[0031] To make the touch function more intuitive, the touch film 8 is provided with several sets of conductive contacts 81, each set of conductive contacts 81 corresponding to a functional pattern 91 on the panel 9.

[0032] The principle of this utility model:

[0033] like Figure 5 As shown, when the user touches panel 9, the pressure from pressing panel 9 contacts the piezoelectric ceramic component 6. The downward deformation of the piezoelectric ceramic's center generates a pressure signal. This pressure signal is fed back to the MCU via the I2C communication of the driver IC chip. Simultaneously, the touch film 8 is electrically connected to the PCBA circuit board 3 via wires. After the MCU recognizes both the touch signal and the pressure signal, it outputs a vibration signal to the driver IC chip. The driver IC chip then outputs a pulse to the piezoelectric ceramic, causing it to vibrate, thus achieving the vibration effect of the switch. The control chip can be the BOS1211 provided by Boréas Technologies Inc., and the piezoelectric ceramic component 6 can be provided by Handeli (Changzhou) Electronics Co., Ltd.

[0034] In the description of this utility model, it should be understood that terms such as "upper", "lower", "front", "rear", "left", "right", "bottom", "inner", "outer", "one end", "one side", "both ends", "both sides", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0036] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or any direct application to other situations without modification, fall within the protection scope of the present invention.

Claims

1. A touch vibration structure for an automotive switch, comprising a housing (2), characterized in that, The housing (2) contains a PCBA circuit board (3), and a mounting frame (5) is screwed onto the housing (2). A piezoelectric ceramic component (6) and an FPC circuit board (7) are fixedly connected to the upper end face of the mounting frame (5). The piezoelectric ceramic component (6) and the FPC circuit board (7) are connected. A panel (9) is provided above the piezoelectric ceramic component (6) and the FPC circuit board (7). A touch film (8) is fixedly connected to the lower surface of the panel (9). The touch film (8) and the FPC circuit board (7) are both connected to the PCBA circuit board (3).

2. The automotive switch touch vibration structure according to claim 1, characterized in that, The piezoelectric ceramic components (6) are provided in two sets, and are respectively arranged on the left and right sides of the mounting frame (5).

3. The automotive switch touch vibration structure according to claim 1, characterized in that, The outer shell (2) and the mounting frame (5) are connected by screws (10).

4. The automotive switch touch vibration structure according to claim 3, characterized in that, The outer shell (2) is provided with a number of mounting holes (21), and the mounting holes (21) are provided with shock-absorbing pads (4) with through holes (41). The lower end of the mounting frame (5) is provided with a mounting boss (51). The screws (10) pass through the mounting holes (21), the shock-absorbing pads (4) in sequence and are connected to the mounting boss (51).

5. The automotive switch touch vibration structure according to claim 4, characterized in that, The shock-absorbing pads (4) are provided in four sets, which are symmetrically arranged on the left and right sides of the mounting frame (5).

6. The automotive switch touch vibration structure according to claim 1, characterized in that, The lower part of the outer shell (2) is connected to the base (1) by a snap-fit ​​structure, and the PCBA circuit board (3) is fixedly connected to the base (1).

7. The automotive switch touch vibration structure according to claim 1, characterized in that, The panel (9) is connected to the mounting frame (5) via a snap-fit ​​structure.

8. The automotive switch touch vibration structure according to claim 1, characterized in that, The panel (9) is fixedly connected to the touch film (8) by adhesive.

9. The automotive switch touch vibration structure according to claim 1, characterized in that, The piezoelectric ceramic component (6) and the FPC circuit board (7) are both fixedly connected to the mounting frame (5) by adhesive.

10. The automotive switch touch vibration structure according to claim 1, characterized in that, The touch film (8) is provided with a number of sets of conductive contacts (81), and each set of conductive contacts (81) corresponds to a functional pattern (91) on the panel (9).

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