A mobile phone side key with custom haptic feedback

Abstract

The utility model provides a kind of mobile phone side key with self-defined tactile feedback, including key, piezoelectric ceramic, substrate and main control module, key is embedded in mobile phone shell side wall, piezoelectric ceramic is located in mobile phone shell inside and key position corresponds, piezoelectric ceramic is equipped with sensing area, key is equipped with connecting post, connecting post passes through mobile phone shell and is located on sensing area, piezoelectric ceramic back bonding has substrate, substrate is fixed in mobile phone shell, main control module is located in mobile phone shell inside and piezoelectric ceramic electric connection.The utility model cooperates through key, piezoelectric ceramic, substrate and main control module, piezoelectric ceramic stress deformation, whether voltage reaches specified threshold by main control module judges, after reaching specified threshold, main control module sends specified waveform to piezoelectric ceramic, triggers vibration, the vibration of piezoelectric ceramic is transmitted to key on connecting post, and then be finger perceived, vibration feedback is obvious, power consumption is low, response is fast, satisfy user instant interactive experience.

Description

Technical Field

[0001] This utility model relates to the field of smartphone technology, and in particular to a side button for a mobile phone with customizable haptic feedback. Background Technology

[0002] As smartphones evolve towards full-screen designs, more and more functions are being developed and integrated into the device. The fixed physical travel distance makes it impossible to achieve multi-level pressure sensitivity, such as differentiated feedback for light / hard presses. To meet customized needs and improve user experience, physical side buttons are increasingly trending towards virtual touch controls. However, the lack of physical feedback from virtual buttons leads to a decline in the user interaction experience.

[0003] Currently, there are two main technical approaches to the mainstream solutions for side buttons. One is to directly use pressure sensing structures such as strain gauges to trigger operations directly using the user's button information. However, this does not provide customers with real-time response, so customers do not know whether the operation has been completed during blind operation. The other is to use an existing whole-machine motor to simulate vibration. Although there will be vibration prompts, the prompting effect will extend to the entire phone, causing vibration in areas other than the side buttons. This requires a complex transmission structure and has high power consumption, and the response delay affects the real-time interactive experience. Utility Model Content

[0004] The technical problem to be solved by this utility model is: in order to overcome the shortcomings of existing technologies that lack button feedback function or have high power consumption and response delay, this utility model provides a side button for mobile phones with customizable haptic feedback.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a side button for a mobile phone with customizable tactile feedback, including a button, a piezoelectric ceramic, a substrate, and a main control module. The button is embedded in the side wall of the mobile phone case. The piezoelectric ceramic is disposed inside the mobile phone case and corresponds to the position of the button. The piezoelectric ceramic has a sensing area. The button has a connecting post. The connecting post passes through the mobile phone case and abuts against the sensing area. The substrate is adhered to the back of the piezoelectric ceramic. The substrate is fixed inside the mobile phone case. The main control module is disposed inside the mobile phone case and electrically connected to the piezoelectric ceramic.

[0006] The connecting post abuts against the relevant area on the front of the piezoelectric ceramic. When the phone presses down on the button, the piezoelectric ceramic deforms under force. The MCU main control module senses the voltage change of the piezoelectric ceramic. When the voltage reaches the specified threshold, the main control module sends a specified waveform to the piezoelectric ceramic to trigger vibration. The vibration of the piezoelectric ceramic is transmitted to the button through the connecting post and then sensed by the finger.

[0007] The sensing function within the sensing zone is achieved through strain FPC or other sensing materials. The sensing material is placed between the piezoelectric ceramic and the connecting column. This placement method can also improve the reliability of the overall structure and absorb some of the vibration impact during the drop, thereby protecting the piezoelectric ceramic.

[0008] Furthermore, in order to fix the position of the button, piezoelectric ceramic, and substrate, screw holes are provided at both ends of the substrate, and screws that are threadedly connected to the phone case are provided in the screw holes.

[0009] Furthermore, in order to fix the positions of the button, piezoelectric ceramic, and substrate, the two ends of the substrate away from the piezoelectric ceramic are bonded to the phone case by adhesive sheets.

[0010] Furthermore, in order to fix the positions of the button, piezoelectric ceramic, and substrate, the substrate is provided with U-shaped fastening tabs at both ends, which are bent away from the piezoelectric ceramic.

[0011] Furthermore, the side buttons of the phone need to have an additional waterproof structure to improve the overall reliability of the phone. The piezoelectric ceramic and the front of the substrate are covered with a waterproof membrane.

[0012] Furthermore, multiple sealing rings are fitted onto the connecting post.

[0013] Furthermore, the substrate includes a main body, with connecting portions at both ends, and a deformation groove between the main body and the connecting portions. The deformation groove increases the vibration amplitude of the substrate and the piezoelectric ceramic, making it easier for the fingers to perceive.

[0014] Furthermore, the substrate is made of nickel alloy, copper, or stainless steel.

[0015] The beneficial effects of this utility model are: through the cooperation of the button, piezoelectric ceramic, substrate and main control module, when the piezoelectric ceramic is deformed by force, the main control module judges whether the voltage has reached the specified threshold. After reaching the specified threshold, the main control module sends a specified waveform to the piezoelectric ceramic to trigger vibration. The vibration of the piezoelectric ceramic is transmitted to the button through the connecting post and then perceived by the finger. The vibration feedback is obvious, the power consumption is low, the response is fast, and it meets the user's real-time interactive experience. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a structural schematic diagram of Embodiment 1;

[0018] Figure 2 This is a structural schematic diagram of Embodiment 2;

[0019] Figure 3 This is a structural schematic diagram of Embodiment 3;

[0020] Figure 4 This is a structural schematic diagram of Embodiment 4;

[0021] Figure 5 This is a structural schematic diagram of Example 5;

[0022] Figure 6 This is a schematic diagram of the button structure in Embodiment Six.

[0023] In the diagram: 1. Button, 11. Connecting post, 2. Piezoelectric ceramic, 3. Substrate, 31. Main body, 32. Connecting part, 33. Deformation groove, 34. Screw hole, 35. Fitting piece, 4. Adhesive piece, 5. Waterproof membrane, 6. Sealing ring. Detailed Implementation

[0024] The present invention will now be described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0025] Example 1:

[0026] like Figure 1 As shown, this utility model discloses a side button for a mobile phone with customizable haptic feedback, comprising a button 1, a piezoelectric ceramic 2, a substrate 3, and a main control module. The button 1 is embedded in the side wall of the phone case. The piezoelectric ceramic 2 is disposed on the inner side of the phone case, corresponding to the position of the button 1. The piezoelectric ceramic 2 has a sensing area. The button 1 has two spaced connecting posts 11, which pass through the phone case and abut against the sensing area. The substrate 3 is bonded to the back of the piezoelectric ceramic 2 and is made of nickel alloy.

[0027] The substrate 3 has screw holes 34 at both ends, and screws that are threadedly connected to the phone case are provided in the screw holes 34. The main control module is located inside the phone case and is electrically connected to the piezoelectric ceramic 2.

[0028] Example 2:

[0029] like Figure 2 As shown, the difference between this embodiment and Embodiment 1 is that the side of the substrate 3 away from the piezoelectric ceramic 2 is bonded to the mobile phone case by the adhesive sheet 4.

[0030] Example 3:

[0031] like Figure 3 As shown, the difference between this embodiment and Embodiment 1 is that the substrate 3 has U-shaped mating pieces 35 at both ends that are bent away from the piezoelectric ceramic 2.

[0032] Example 4:

[0033] like Figure 4As shown, the difference between this embodiment and Embodiment 2 is that three sealing rings 6 are fitted onto the connecting post 11 to mate with the phone case. A waterproof membrane 5 is laid on the front of the piezoelectric ceramic 2 and the substrate 3.

[0034] Example 5:

[0035] like Figure 5 As shown, the difference between this embodiment and Embodiment 1 is that the substrate 3 includes a main body 31, the main body 31 has connecting portions 32 at both ends, and a deformation groove 33 is provided between the main body 31 and the connecting portions 32.

[0036] Example 6:

[0037] like Figure 6 As shown, the difference between this embodiment and Embodiment 1 is that the button 1 is provided with a long strip-shaped connecting post 11.

[0038] In this invention, directions and references (e.g., up, down, left, right, etc.) are used only to aid in the description of features in the drawings. Therefore, the following specific embodiments are not intended to be restrictive, and the scope of the claimed subject matter is defined solely by the appended claims and their equivalents.

[0039] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the scope of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A side button for a mobile phone with customizable haptic feedback, characterized in that: The device includes a button (1), a piezoelectric ceramic (2), a substrate (3), and a main control module. The button (1) is embedded in the side wall of the phone case. The piezoelectric ceramic (2) is located inside the phone case and corresponds to the position of the button (1). The piezoelectric ceramic (2) has a sensing area. The button (1) has a connecting post (11). The connecting post (11) passes through the phone case and abuts against the sensing area. The substrate (3) is bonded to the back of the piezoelectric ceramic (2). The substrate (3) is fixed inside the phone case. The main control module is located inside the phone case and is electrically connected to the piezoelectric ceramic (2).

2. A mobile phone side button with customizable haptic feedback as described in claim 1, characterized in that: The substrate (3) has screw holes (34) at both ends, and screws that are threadedly connected to the phone case are provided in the screw holes (34).

3. A mobile phone side button with customizable haptic feedback as described in claim 1, characterized in that: The two ends of the substrate (3) away from the piezoelectric ceramic (2) are bonded to the mobile phone case by adhesive sheet (4).

4. A mobile phone side button with customizable haptic feedback as described in claim 1, characterized in that: The substrate (3) has U-shaped fittings (35) at both ends that are bent away from the piezoelectric ceramic (2).

5. A mobile phone side button with customizable haptic feedback as described in claim 1, characterized in that: A waterproof membrane (5) is laid on the front side of the piezoelectric ceramic (2) and the substrate (3).

6. A mobile phone side button with customizable haptic feedback as described in claim 1, characterized in that: Multiple sealing rings (6) are fitted on the connecting column (11).

7. A mobile phone side button with customizable haptic feedback as described in any one of claims 1-6, characterized in that: The substrate (3) includes a main body (31), with connecting portions (32) at both ends of the main body (31), and a deformation groove (33) between the main body (31) and the connecting portions (32).

8. A mobile phone side button with customizable haptic feedback as described in claim 7, characterized in that: The substrate (3) is made of nickel alloy, copper or stainless steel.

Images