WO2018149086A1

WO2018149086A1 - Electronic device

Info

Publication number: WO2018149086A1
Application number: PCT/CN2017/092695
Authority: WO
Inventors: 王承谦; 任思魁
Original assignee: 歌尔科技有限公司
Priority date: 2017-02-14
Filing date: 2017-07-13
Publication date: 2018-08-23
Also published as: CN106792323B; CN106792323A

Abstract

An electronic device comprises a first metal member (1-1), a switch button (3), a second metal member (2) connected to the switch button (3), an electrical control board (4), and a capacitance detection chip (14) connected to the electrical control board (4). The capacitance detection chip (14) is connected to the second metal member (2) via a drive line (5) and to the first metal member (1-1) via a receiving line (6). The first metal member (1-1) and the second metal member (2) are parallel to each other and there is a gap therebetween, and the gap is filled with a dielectric material (7) having a high dielectric constant. When the switch button (3) is pressed, a signal is sent to the electrical control board (4) when the capacitance between the first metal member (1-1) and the second metal member (2) detected by the capacitance detection chip (14) reaches a preset threshold, and the electrical control board (4) controls the operation of the electronic device. The problems of a complicated switch structure, a large volume, and high costs of electronic devices in the prior art are resolved. A switch for an electronic device is implemented, while costs and investment are reduced, and the volume of the electronic device is reduced, facilitating carrying and placing, and improving user experience.

Description

Electronic device

[0001] Cross-Reference to Related Applications

[0002] This application claims the priority of the Chinese Patent Application, the entire disclosure of which is hereby incorporated by In the application.

Technical field

The present invention belongs to the technical field of electronic communication devices, and in particular, to an electronic device.

Background technique

[0004] Electronic devices, such as earphones, are common electronic products in current life. With the development of society and the improvement of living standards, people's requirements for the use of headphones (for example, convenience, miniaturization, portability, etc.) are also constantly Improvements, most of the existing earphones use mechanical button or mechanical toggle, which makes the headset bulky and not lightweight. In addition, there are also advanced touch-type switches in the prior art. Due to the large volume of the touch-off module, the volume of the headphone is large and the cost is high; some use the "Hall effect" principle. Detection to achieve the role of the barrier, this detection method requires additional magnets, the cost is high; there are some through the wearing of the detection to achieve the role of the barrier, this detection method needs to increase the wearing of the detection module, it will also lead to the volume of the headset and high cost.

technical problem

[0005] The present invention provides an electronic device for solving the problems of complicated structure, large volume, and high cost of an electronic device in the prior art, which reduces the cost and reduces the cost of implementing the electronic device. The size of the electronic device is easy to carry and place, which improves the user experience.

Problem solution

Technical solution

[0006] In order to solve the above technical problem, the present invention proposes the following technical solutions to solve:

[0007] An electronic device, comprising: a first metal member, a switch button, a second metal member connected to the switch button, an electric control board, and a capacitance detecting chip connected to the electric control board The capacitance detecting chip is connected to the second metal member through a driving line, and is connected to the first metal member through a receiving line The first metal member and the second metal member are relatively parallel with a gap therebetween, and the gap is filled with a dielectric material having a high dielectric constant; when the switch button 按压 is pressed, the capacitance detecting chip detects The capacitance between the first and second metal members reaches a preset threshold, and a signal is sent to the electronic control board, and the electronic control board controls the operation of the electronic device.

[0008] Further, the high dielectric constant dielectric material is sound absorbing foam or rubber.

[0009] Further, the electronic device is an earphone. In order to improve the acoustic performance of the earphone, the bass sound effect of the earphone is improved, and the high dielectric constant dielectric material is sound absorbing foam or rubber, and sound absorbing foam is preferred.

[0010] Further, the first metal member is a metal shell, and the second metal member is a steel sheet. Or alternatively, the first metal member is a steel sheet and the second metal member is a metal shell.

[0011] Further, in order to ensure that the switch button can flexibly press the button and avoid dusting at the switch button, the electronic device includes a casing, and an elastic soft material is connected between the periphery of the button and the casing.

[0012] Further, the elastic soft material is a soft plastic, a soft silicone or a thermoplastic elastomer.

Advantageous effects of the invention

Beneficial effect

[0013] Compared with the prior art, the advantages and beneficial effects of the present invention are: the first metal member and the second metal member in the electronic device form a parallel plate capacitor, when pressing the 吋 button 吋, between the parallel plate capacitors The distance becomes smaller, causing a change in capacitance. The capacitance detecting chip is used to detect the capacitance of the capacitor, and when the capacitance reaches a preset threshold, the capacitance detecting chip sends a signal to the electronic control board, and then the electronic control board sends a control signal for control. The operation of the electronic device, such as the electronic device, the shutdown, the adjustment of the volume of the electronic device, etc., the electronic device has a simple structure, low input cost, small size, and is convenient to carry and place.

Brief description of the drawing

DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief introduction will be made to the drawings used in the embodiments of the present invention or the description of the prior art, and obviously, the following description The drawings are some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

1 is a cross-sectional view of an embodiment of an electronic device of the present invention;

2 is a schematic block diagram of an embodiment of an electronic device according to the present invention. Embodiments of the invention

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. The embodiments are a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

[0018] The present invention relates to an electronic device including a first metal member 1-1, a switch button 3, a second metal member 2 connected to the switch button 3, an electrical control board 4, and an electronic control board 4 a capacitance detecting chip 14; the capacitance detecting chip 14 is connected to the second metal member 2 through the driving wire 5, and is connected to the first metal member 1-1 through the receiving wire 6; the first metal member 1-1 and the second metal member 2 are opposite Parallel with a gap therebetween (not shown), the gap is filled with a dielectric material 7 having a high dielectric constant; when the switch button 3 is pressed, the first metal member 1-1 and the second metal detected by the capacitance detecting chip 14 The capacitance between the components 2 reaches a preset threshold, and the signal is sent to the electronic control board 4, and the electronic control board 4 controls the operation of the electronic device (for example, the electronic device is turned off, and the volume of the electronic device is adjusted.

[0019] As shown in FIG. 1, the headphone is turned off or the headphone volume is adjusted by using the switch button 3, and the preset threshold according to the capacitance formed by the first metal member 1-1 and the second metal member 2 is different. The electrical control board 4 can implement the different functions described above. Of course, the electronic device is not limited to the earphone, and any other device with a metal member can also achieve the above different functions.

[0020] Specifically, in the embodiment, the electronic device is an earphone, and a process for implementing the headset is described below for the earphone. As shown in FIG. 1, the earphone comprises an earplug soft rubber sleeve 13 and a casing 8, and a speaker with a metal shell 1-1, a battery 12 for supplying power to the earphone, an electric control board 4, and an electronic control are disposed in the outer casing 8. Insulating cotton 10 between the plate 4 and the battery 12. The switch button 3 is disposed on the side of the earphone casing 8 and is provided with an elastic soft material between the periphery thereof and the outer casing 8. The elastic soft material may be a soft plastic, a soft silicone or a thermoplastic elastic material. The soft plastic 9 is convenient for sealing the entire earphone, preventing dust from entering the gap of the switch button 3, and the soft plastic 9 can be stretched, which facilitates the pressing and popping of the button 3 of the switch. The switch button 3 is connected to the second metal member 2 via a support rod 11 connected thereto. In the present embodiment, the second metal member 2 is a steel sheet. As shown in FIGS. 1 and 2, the capacitance detecting chip 14 is connected to the steel sheet 2 through the driving wire 5, and passes through The receiving wire 6 is connected to the horn metal shell 1-1, which form a parallel plate capacitor, the steel sheet 2 becomes a positive electrode plate, the horn metal shell 1-1 becomes a negative electrode plate, and between the steel sheet 2 and the horn metal shell 1-1 It is filled with a dielectric material having a high dielectric constant, and the dielectric material may be sound absorbing foam or rubber or the like. Preferably, in the present embodiment, the sound absorbing foam 7 is filled between the two, and the advantages are as follows: (1) From the acoustic performance: the numerous microporous phases in the foam increase the volume of the sound chamber after the horn 1 , which is greatly reduced. The sound of the earphone is distorted, which improves the acoustic experience of the earphone, thereby improving the bass sound of the earphone; (2) The sound absorbing foam 7 and the air co-charging medium increase the dielectric constant.

[0021] As shown in FIG. 1, the formula C= _{e is} calculated according to the capacitance of the parallel plate capacitor. _Ei S/d, where ε. For the vacuum dielectric constant, _{ε ι} is the relative dielectric constant, S is the relative area of the plate, d is the distance between the two plates, when the hand presses the 按键 button 3 吋, the steel piece 2 is close to the horn metal shell 1-1, the two plates The distance between the capacitors is increased, and the capacitance of the capacitor is increased. The capacitance detecting chip 14 can detect the capacitance of the capacitor correspondingly. A threshold may be preset for the function of the earphone to make the capacitance detected by the capacitance detecting chip 14 reach the threshold, and the electronic control board 4 performs a power-off operation on the earphone; another function is preset for the function of the earphone volume adjustment, When the capacitance detected by the capacitance detecting chip 14 reaches the threshold value, the electronic control board 4 performs a volume adjustment (increase or decrease) operation on the earphone.

[0022] Alternatively, the horn metal shell 1-1 can also serve as a positive electrode plate, and the steel sheet 2 serves as a negative electrode plate, that is, the capacitance detecting chip 14 is connected to the horn metal shell 1-1 through the driving wire 5, through the receiving wire 6 and the steel sheet. 2 connected, its function is implemented as described above.

[0023] The electronic device of the embodiment is an earphone, and the metal shell 1-1 and the steel sheet 2 in the earphone form a parallel plate capacitor. When the switch button 3 is pressed, the distance between the parallel plate capacitors becomes smaller, resulting in an increase in capacitance. Large, the capacitance detecting chip 14 detects the capacitance of the capacitor, and when the capacitance reaches a preset threshold, the capacitance detecting chip 14 sends a signal to the electronic control board 4, after which the electronic control board 4 sends a control signal for controlling the operation of the earphone, for example幵 Shutdown, adjust the volume, etc. The earphone function of the headphone function is simple, the input cost is low, and the volume is small, and it is easy to carry and place; the sound absorbing foam filled between the metal shell 1-1 and the steel sheet 2 7, help to enhance the bass sound of the headphone speaker 1, improve user experience.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that: It can still modify the technical solutions described in the foregoing embodiments, or The technical features are replaced by equivalents; and the modifications or substitutions do not detract from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

Claim

An electronic device, comprising: a first metal member, a switch button, a second metal member connected to the switch button, an electric control board, and a capacitance detecting chip connected to the electric control board; The capacitance detecting chip is connected to the second metal member through a driving wire, and is connected to the first metal member through a receiving wire; the first metal member and the second metal member are relatively parallel with a gap therebetween, and the gap is a dielectric material filled with a high dielectric constant; when the switch button 按压 is pressed, the capacitance between the first metal member and the second metal member detected by the capacitance detecting chip reaches a preset threshold value To the electronic control board, the electronic control board controls the operation of the electronic device.

The electronic device according to claim 1, wherein the high dielectric constant dielectric material is sound absorbing foam or rubber.

The electronic device according to claim 1, wherein the electronic device is an electronic device according to claim 3, wherein the high dielectric constant dielectric material is sound absorbing foam or rubber. .

The electronic device according to any one of claims 1 to 4, wherein the first metal member is a horn metal case, and the second metal member is a steel piece.

The electronic device according to any one of claims 1 to 4, wherein the first metal member is a steel sheet, and the second metal member is a metal shell.

The electronic device according to any one of claims 1 to 4, wherein the electronic device includes a housing, and an elastic soft material is connected between the periphery of the switch button and the outer casing according to claim 7. The electronic device is characterized in that the elastic soft material is a soft plastic, a soft silicone or a thermoplastic elastomer.