Capacitive touch key and electronic device protective case

Abstract

A capacitive touch key, comprising: a key bracket and a key PCB assembly, wherein the key bracket is mounted in a key hole of an electronic device protective case and has a mounting groove for mounting the key PCB assembly, and one side of the key PCB assembly is configured to fit with a control button on an electronic device. In the present technical solution, the control button of the electronic device is controlled by means of the capacitive touch key to achieve a photographing function. The capacitive touch key tightly fits with the control button on a device body, thereby facilitating finger touch and thus greatly improving the user operation experience. Further disclosed in the present application is an electronic device protective case applying the capacitive touch key.

Description

A capacitive touch button and a protective case for electronic devices

[0001] This application claims priority to Chinese Patent Application No. 202422598356.1, filed on October 25, 2024, entitled "A Capacitive Touch Button and Protective Case for Electronic Devices", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of electronic device component technology, and in particular to a capacitive touch button and an electronic device protective case. Background Technology

[0003] Currently, electronic devices (such as mobile phones and tablets) have added a physical control button for camera control, equipped with a high-precision force sensor and vibration motor, allowing operation through light and hard presses. It's primarily used for focusing, shooting, and recording during shooting. However, because this control button is only slightly raised above the camera body, it's difficult for users to easily reach it when the device is covered by a protective case, severely impacting the user experience. Furthermore, the protective case cannot cover the button, leaving it unprotected in case of drops or scratches. Summary of the Invention

[0004] In view of this, this application provides a capacitive touch button that fits snugly against the control buttons on the device body, making it easy for users to touch with their fingers and greatly improving the user's operating experience.

[0005] This application also provides a protective case for an electronic device including the above-mentioned capacitive touch buttons.

[0006] To achieve the above objectives, this application provides the following technical solution:

[0007] A capacitive touch button includes: a button bracket and a button PCB assembly;

[0008] The button bracket is installed inside the button hole of the electronic device protective case. The button bracket has a mounting slot for installing the button PCB assembly. One side of the button PCB assembly is used to fit the control button on the electronic device.

[0009] Preferably, one side of the button PCB assembly used to attach the control button is the bottom surface of the button PCB assembly;

[0010] The bottom surface of the button bracket is recessed to form the mounting groove, and the top surface of the button PCB assembly is glued to the bottom surface of the mounting groove.

[0011] Preferably, the bottom surface of the button bracket is recessed to form the mounting groove;

[0012] The button bracket and the button PCB assembly are integrally formed by injection molding.

[0013] Preferably, it further includes: a protective component;

[0014] The mounting groove is a through groove that passes through the button bracket, and the axial direction of the mounting groove is parallel to or at a certain angle to the axial direction of the button bracket.

[0015] The button PCB assembly used to attach the control button has one side as its bottom surface, and the protective component is attached to the top surface of the button PCB assembly.

[0016] Preferably, the protective component is a PET sheet.

[0017] Preferably, the button bracket, the button PCB assembly, and the PET sheet are integrally formed by injection molding.

[0018] Preferably, the protective component is a glass cover.

[0019] Preferably, the glass cover is adhered to the button PCB assembly to form the button body;

[0020] The button body and button bracket are integrally formed by injection molding.

[0021] Preferably, the outer peripheral wall of the button bracket is provided with an annular limiting part in the middle, and the annular limiting part is used to limit and cooperate with the peripheral wall of the button hole;

[0022] The annular limiting part is an annular groove or an annular protrusion.

[0023] An electronic device protective case includes: the aforementioned capacitive touch button.

[0024] As can be seen from the above technical solution, the capacitive touch button provided in this application controls the control buttons of the electronic device to realize the shooting function; the capacitive touch button fits closely to the control buttons on the device body, making it convenient for people to touch with their fingers and greatly improving the user's operating experience.

[0025] This application also provides a protective case for an electronic device. Since it uses the aforementioned capacitive touch button, it has corresponding beneficial effects, which can be referred to in the preceding description and will not be repeated here. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 is an exploded view of an embodiment of the capacitive touch button provided in this application;

[0028] Figure 2 is a cross-sectional view of the assembly shown in Figure 1;

[0029] Figure 3 is an exploded view of two embodiments of the capacitive touch button provided in this application;

[0030] Figure 4 is a cross-sectional view of the assembly shown in Figure 3;

[0031] Figure 5 is an exploded view of three embodiments of the capacitive touch button provided in this application;

[0032] Figure 6 is a cross-sectional view of the assembly shown in Figure 5;

[0033] Figure 7 is an exploded view of four embodiments of the capacitive touch button provided in this application;

[0034] Figure 8 is a cross-sectional view of the assembly shown in Figure 7;

[0035] Figure 9 is a schematic diagram of the installation of capacitive touch buttons and electronic device protective cases (to hide electronic devices);

[0036] Figure 10 is a cross-sectional view of Figure 9;

[0037] Figure 11 is a partial enlarged view of Figure 10 (including electronic equipment).

[0038] Wherein, 1 is a capacitive touch button, 11 is a button bracket, 111 is a mounting slot, 112 is an annular limiting part, and 12 is a button PCB assembly.

[0039] 2 is the protective case for electronic devices, and 21 is the button hole;

[0040] 3 represents an electronic device, and 31 represents a control button. Detailed Implementation

[0041] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0042] The present application provides a capacitive touch button, as shown in Figures 1-11, including: a button bracket 11 and a button PCB assembly 12;

[0043] The button bracket 11 is installed in the button hole 21 of the electronic device protective case 2. The button bracket 11 has a mounting groove 111 for mounting the button PCB assembly 12. One side of the button PCB assembly 12 is used to fit the control button 31 on the electronic device 3.

[0044] In the above technical solution, during the actual use of electronic device 3 for shooting, a force is applied to the button PCB assembly 12, and the button PCB assembly 12 transmits the force to the control button 31 to realize the shooting function; or by touching the button PCB assembly 12, the button PCB assembly 12 generates an electrical signal and transmits it to the control button 31 on electronic device 3 to realize the shooting function; the above shooting function includes, but is not limited to, taking pictures and recording videos.

[0045] Compared with existing technical solutions, the electronic device 3 uses a capacitive touch button to control the control button 31 of the electronic device 3 to achieve the shooting function; the capacitive touch button fits closely to the control button 31 on the device body, making it convenient for people to touch and greatly improving the user's operating experience.

[0046] In the above technical solution, the electronic device 3 includes, but is not limited to, mobile phones and tablets, and the electronic device protective case 2 includes, but is not limited to, mobile phone cases and tablet cases.

[0047] The above technical solution is optimized as shown in Figures 1-2. One side of the button PCB assembly 12 used to attach the control button 31 is the bottom surface of the button PCB assembly 12. The button PCB assembly 12 is block-shaped, plate-shaped or sheet-shaped. The button PCB assembly includes, but is not limited to, PCB board.

[0048] The bottom surface of the button bracket 11 is recessed to form a mounting groove 111, and the top surface of the button PCB assembly 12 is glued to the bottom surface of the mounting groove 111.

[0049] In the above technical solution, the bottom surface of the mounting groove 111 is the side opposite to the button PCB assembly 12, and the top surface of the button PCB assembly 12 is glued to the bottom surface of the mounting groove 111. Specifically, the button PCB assembly 12 is glued to the bottom surface of the mounting groove 111 by double-sided adhesive or dispensing process; preferably, the side surface and top surface of the button PCB assembly 12 are glued to the mounting groove 111 by double-sided adhesive or dispensing process.

[0050] In this technical solution, as shown in Figures 5 and 6, the bottom surface of the button bracket 11 is recessed to form a mounting groove 111;

[0051] The button bracket 11 and the button PCB assembly 12 are integrally formed by injection molding.

[0052] In the above technical solution, according to the assembly position sequence shown in Figure 6, the button PCB assembly 12 is placed in the plastic mold, and the button PCB assembly 12 is molded onto the button bracket 11 through injection molding process, and finally the button is obtained; it should be noted that the top of the mounting groove 111 is the button cover, which plays a role in protecting the button PCB.

[0053] This technical solution also includes: protective components;

[0054] The mounting groove 111 is a through groove that passes through the button bracket 11. The axial direction of the mounting groove 111 is parallel to or at a certain angle to the axial direction of the button bracket 11.

[0055] One side of the button PCB assembly 12 used to attach the control button 31 is the bottom surface of the button PCB assembly 12, and a protective component is attached to the top surface of the button PCB assembly 12.

[0056] In the above technical solution, the protective components protect the button PCB assembly 12 from damage and extend the service life of the button.

[0057] The above technical solution is optimized as shown in Figures 3 and 4. The protective component is a PET sheet 13. The PET sheet 13 film is heat resistant, not easily melted, and covers the top surface of the button PCB assembly 12 to protect the button PCB assembly 12 from damage.

[0058] Further optimization of the above technical solution is shown in Figure 4. The button bracket 11, button PCB assembly 12, and PET sheet 13 are integrally formed by injection molding. After the button bracket 11, button PCB assembly 12, and PET sheet 13 are combined, the specific longitudinal cross-sectional shape is shown in Figure 4. The middle part of the PET sheet 13 is attached to the top surface of the button PCB assembly 12, and the edge part of the PET sheet 13 is attached to the top surface of the button bracket 11. Preferably, the IML in-mold transfer injection molding process is adopted. According to the assembly position sequence shown in Figure 4, the PET sheet 13 and the button PCB assembly 12 are respectively placed in the corresponding positions of the plastic mold of the button bracket 11. The three are tightly combined by the injection molding process to finally form a complete button.

[0059] The above technical solution is optimized as shown in Figures 7 and 8. The protective component is a glass cover plate 14. The glass cover plate 14 is mainly used to protect the button PCB assembly 12 from dust and water droplets, and to extend the service life of this capacitive touch button.

[0060] To further optimize the above technical solution, as shown in Figures 7 and 8, the glass cover plate 14 is attached to the button PCB assembly 12 to form the button body;

[0061] The button body and the button bracket 11 are integrally formed by injection molding.

[0062] In this technical solution, according to the assembly sequence shown in Figure 8, the button PCB assembly 12 is attached to the glass cover plate 14 by applying double-sided tape or dispensing. Then, the button body is molded into the button bracket 11 by injection molding, and finally the capacitive touch button is obtained.

[0063] In this technical solution, as shown in Figures 9-11, an annular limiting part 112 is provided in the middle of the outer peripheral wall of the button bracket 11. The annular limiting part 112 is used to limit and cooperate with the peripheral wall of the button hole 31.

[0064] The annular limiting part 112 is an annular groove or an annular protrusion.

[0065] In this technical solution, the annular limiting part 112 and the button hole 31 are used to make the joint structure between the capacitive touch button and the electronic device protective shell more robust.

[0066] This application also provides a protective case for an electronic device, including a capacitive touch button as described above. Since this solution uses the aforementioned capacitive touch button, it has corresponding beneficial effects, as detailed above, and will not be repeated here.

[0067] The following is a further description of this solution with reference to specific embodiments:

[0068] In one embodiment, the capacitive touch button is installed at the button mounting hole of the phone case, and then the phone is put on, so that the button PCB assembly fits tightly against the control button, and the function can be used normally by touching it with a finger; the button has a circuit board inside, and by touching the capacitive touch button of the phone case, a signal can be transmitted to the control button on the phone to realize the camera function; in this solution, the phone case can cover the control button, and effectively protect the control button when the phone is dropped or scratched.

[0069] In another embodiment, the capacitive touch button is installed at the button mounting hole of the tablet shell, and finally the tablet is put on, so that the button PCB assembly fits tightly against the control button, and the function can be used normally by touching it with a finger; the capacitive touch button has a circuit board inside, and by touching the capacitive touch button of the tablet shell, a signal can be transmitted to the control button on the tablet to realize the photo taking function; in this solution, the tablet shell can cover the control button, and effectively protect the control button when the mobile phone is dropped or scratched.

[0070] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0071] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A capacitive touch button, characterized in that, include: Button bracket (11) and button PCB assembly (12); The button bracket (11) is installed in the button hole (21) of the electronic device protective shell (2). The button bracket (11) has a mounting groove (111) for mounting the button PCB assembly (12). One side of the button PCB assembly (12) is used to fit the control button (31) on the electronic device (3).

2. The capacitive touch button according to claim 1, characterized in that, The button PCB assembly (12) used to attach the control button (31) has one side as the bottom surface of the button PCB assembly (12); The bottom surface of the button bracket (11) is recessed to form the mounting groove (111), and the top surface of the button PCB assembly (12) is glued to the bottom surface of the mounting groove (111).

3. The capacitive touch button according to claim 1, characterized in that, The bottom surface of the button bracket (11) is recessed to form the mounting groove (111); The button bracket (11) and the button PCB assembly (12) are integrally formed by injection molding.

4. The capacitive touch button according to claim 1, characterized in that, Also includes: Protective components; The mounting groove (111) is a through groove that passes through the button bracket (11), and the axial direction of the mounting groove (111) is parallel to or at a certain angle to the axial direction of the button bracket (11). The button PCB assembly (12) used to attach the control button (31) has one side as the bottom surface of the button PCB assembly (12), and the protective component is attached to the top surface of the button PCB assembly (12).

5. The capacitive touch button according to claim 4, characterized in that, The protective component is a PET sheet (13).

6. The capacitive touch button according to claim 5, characterized in that, The button bracket (11), the button PCB assembly (12), and the PET sheet (13) are integrally formed by injection molding.

7. The capacitive touch button according to claim 4, characterized in that, The protective component is a glass cover plate (14).

8. The capacitive touch button according to claim 7, characterized in that, The glass cover plate (14) is attached to the button PCB assembly (12) to form the button body; The button body and the button bracket (11) are integrally formed by injection molding.

9. The capacitive touch button according to claims 1-8, characterized in that, The outer peripheral wall of the button bracket (11) is provided with an annular limiting part (112), which is used to limit and cooperate with the peripheral wall of the button hole (21). The annular limiting part (112) is an annular groove or an annular protrusion.

10. A protective case for an electronic device, characterized in that, include: The capacitive touch button as described in any one of claims 1-9.

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