WO2013182158A1

WO2013182158A1 - Mobile terminal key component and mobile terminal

Info

Publication number: WO2013182158A1
Application number: PCT/CN2013/079819
Authority: WO
Inventors: 魏晓锋
Original assignee: 中兴通讯股份有限公司
Priority date: 2012-10-18
Filing date: 2013-07-22
Publication date: 2013-12-12
Also published as: KR20150070373A; CN203118837U; JP5961765B2; KR101755959B1; JP2015532515A

Abstract

Disclosed are a mobile terminal key component and a mobile terminal. The key component comprises: an adjusting rotation disk, a rotation shaft, a lever, and a microswitch, which are all arranged on the back of the mobile terminal. The adjusting rotation disk is fixed on the rotation shaft. While rotating, the adjusting rotation disk drives the rotation shaft and the lever to rotate, and a protuberance on the lever triggers the microswitch.

Description

Mobile terminal button component and mobile terminal

The present invention relates to the technical field of mobile terminal structure design, and more particularly to a mobile terminal button component and a mobile terminal. Background technique

At present, the power button and the volume adjustment button of a mobile terminal (such as a mobile phone) generally adopt a micro-switch to directly press, in the application process, an undesired switch is prevented to avoid abnormal operation, and the micro switch is reduced when falling. The possibility of damage due to impact, the design height of the power button is reduced as much as possible, but at the same time, the negative effect is that the button feel is weak or the hand is not obvious, and in some cases, the nail needs to be operated smoothly.

In addition, for today's increasingly demanding applications of mobile terminal screens, the fact that the keys are located at the side positions tends to cause inconvenience for one-handed operation (for example, the buttons in the right position may have operational obstacles to the left hand).

In summary, the buttons of the mobile terminal in the related art have the following defects or deficiencies: the volume adjustment button and the power button are placed on the top surface or the side surface, occupying more space; and, when the button is located at the side position, it is inconvenient for the large screen. The operation of the mobile terminal. Summary of the invention

The embodiments of the present invention provide a mobile terminal button component and a mobile terminal, which can improve the convenience of operation and environmental reliability.

A mobile terminal button assembly provided by an embodiment of the present invention includes: an adjustment dial, a rotating shaft, a lever, and a micro switch disposed on a back surface of the mobile terminal;

The adjusting dial is fixed on the rotating shaft, and when the adjusting dial rotates, the rotating shaft and the lever are rotated, and the protrusion on the lever triggers the micro switch.

Preferably, the number of the micro switches is two.

Preferably, the micro switch is connected to a motherboard of the mobile terminal. Preferably, the button assembly further includes: an intermediate keycap, and a metal dome conductive film (DOME) sheet, a printed circuit board (PCB) and a contact elastic piece disposed in sequence under the middle key cap;

The intermediate key cap is fixed on the rotating shaft independently of the adjusting turntable;

When the middle key cap is pressed, the DOME piece is deformed to contact the PCB, and the printed circuit on the PCB board is turned on to realize conduction of the contact elastic piece.

Preferably, the intermediate key cap is fixed on the silica gel, and when the middle key cap is pressed, pressure is transmitted to the DOME sheet through the silica gel.

Preferably, the contact elastic piece is connected to the PCB through a flexible circuit board (FPC).

Preferably, the contact elastic piece is connected to the main board of the mobile terminal.

Preferably, the button assembly further includes a fixing ring that fixes the rotating shaft.

The embodiment of the invention further provides a mobile terminal, comprising the mobile terminal button component as described above. The embodiment of the invention provides a mobile terminal button assembly, which integrates a power button and a volume button into a group of buttons and is arranged at a central position on the back of the mobile phone terminal, thereby solving some main buttons of the large-screen mobile terminal being placed on the side of the mobile terminal. The inconvenience caused by the one-handed operation is avoided, and at the same time, the defects such as the reliability of the micro-switch that is easy to malfunction and the failure of the micro-switch in the environmental test are avoided.

The button assembly provided by the embodiment of the invention facilitates one-hand operation of the main button of the large-screen mobile terminal; the error rate is reduced and the reliability is improved. BRIEF abstract

1 is a schematic exploded view showing the structure of a key assembly according to an embodiment of the present invention;

2 is a front elevational view of a key assembly according to an embodiment of the present invention;

Figure 3 is a rear elevational view of the key assembly of the embodiment of the present invention;

4 is an isometric view of a key assembly in accordance with an embodiment of the present invention. Preferred embodiment of the invention

The embodiment provides a mobile terminal button assembly, and the following technical solutions are used:

The button assembly includes a rear surface of the mobile terminal: an adjustment dial, a rotating shaft, and a bar Rod, and micro switch;

Preferably, the button assembly further includes: an intermediate keycap, and a metal dome conductive film (DOME) piece, a printed circuit board (PCB) and a contact elastic piece arranged in sequence under the middle key cap;

When the middle keycap is pressed, the DOME piece is deformed to contact the PCB board, and the printed circuit on the PCB board is turned on to realize conduction of the contact elastic piece.

Preferably, the contact elastic piece is connected to the PCB through a Flexible Printed Circuit (FPC).

The present embodiment further provides a mobile terminal, including the above mobile terminal button component.

In the mobile terminal button assembly of the embodiment, the power button and the volume adjustment button are arranged at the center of the back of the terminal, and the power button is in the DOME form, and the volume adjustment is performed by the rotation of the dial on the volume adjustment dial. Press the micro switch to adjust the volume.

According to the mobile terminal button assembly of the present embodiment, since the conventional direct pressing method is changed, the pressing force is applied, and the pressure perpendicular to the surface of the turntable is not directly applied to the micro switch, thereby facilitating the protection of the micro switch. The operation of the power button is the same as that of the normal DOME button. It is only because the key cap is hidden below the plane of the volume button. The general misoperation is not easy to cause the power button to be activated, and the impact is not directly affected during the drop process. Sex is improved.

Referring to FIG. 1, in this embodiment, the specific components of the mobile terminal button assembly mainly include: an adjustment dial 1, an intermediate keycap 2, a silicone rubber 3, a DOME sheet 4, a PCB board 5, a rotating shaft 6, a lever 7, and a fixing ring 8 ( Can be, but not limited to, E-ring), micro switch 9 (A, B two), FPC10, contact bomb Sheet 11 (two pieces), and housing 12.

The PCB 5 is fixed to the inner cavity of the rotating shaft 6, and the DOME sheet 4 is adhered and fixed to the PCB 5 by a film (not shown) above it. The rotating shaft 6, the silicone 3 and the adjusting dial 1 are fixed together, and the middle key cap 2 is fixed on the silicone 3, and the middle key cap 2 and the adjusting dial 1 can move relatively independently. The E-ring 8 in the figure is used to fix the rotating shaft 6. The micro switch 9 and the contact spring 11 are soldered to the main board PCB by an SMT (Surface Mounted Technology) process chip (not shown). The contact spring pieces 11 (two) are connected to the PCB 5 through the FPC board 10, one end of which is fixed to the casing 12, and the other end of which is soldered to the PCB 5.

The specific operation of the mobile terminal button assembly of the present invention is as follows:

The lever 7 can perform a small angle of counterclockwise rotation under the rotation of the rotating shaft 6, and controls the actions of the two micro switches A and B, respectively, to control the volume. The driving force of the rotary shaft 6 is obtained by applying a force to the adjustment dial 1 by the user's hand.

The conduction of the two contact elastic pieces 11 is realized by pressing the DOME sheet 4 and then turning on the circuit on the PCB 5: when the human hand presses the middle key cap 2 and transmits the pressure to the DOME sheet 4 through the silicone rubber 3, the DOME sheet 4 is deformed. The proximity to the PCB board 5 is continued until the printed wiring on the PCB 5 is turned on, thereby achieving conduction of the contact elastic piece 11.

The features and spirit of the present invention are more clearly described in the above detailed description of the embodiments of the present invention, which are intended to illustrate the preferred embodiments of the present invention, and are not intended to The invention is subject to any form of limitation. The so-called "power button" "volume adjustment button" is named after this, but its function is not limited to the function of the power switch or the volume adjustment switch, but can be a switch that implements other functions. Therefore, any modifications or changes to the inventions made in the spirit of the same invention should be included in the scope of the invention.

Industrial applicability

The mobile terminal button assembly provided by the embodiment of the invention facilitates one-hand operation of the main button of the large-screen mobile terminal; the erroneous operation rate is reduced, and the reliability is improved.

Claims

Claim

What is claimed is: 1. A mobile terminal button assembly, the button assembly comprising: an adjustment dial, a rotating shaft, a lever, and a micro switch;

2. The mobile terminal key assembly of claim 1, wherein

The number of the micro switches is two.

3. The mobile terminal key assembly of claim 1, wherein

The micro switch is connected to a motherboard of the mobile terminal.

4. The mobile terminal button assembly of claim 1, further comprising: an intermediate keycap, and a metal dome conductive film (DOME) piece and a printed circuit board (PCB) disposed in sequence below the intermediate keycap And contact with shrapnel;

5. The mobile terminal key assembly of claim 4, wherein

The intermediate key cap is fixed on the silica gel, and when the middle key cap is pressed, pressure is transmitted to the DOME sheet through the silica gel.

6. The mobile terminal key assembly of claim 3, wherein

The contact spring is connected to the PCB through a flexible circuit board (FPC).

The mobile terminal key assembly according to any one of claims 4, 5 or 6, wherein the contact elastic piece is disposed to be connected to a main board of the mobile terminal.

The mobile terminal key assembly according to any one of claims 1, 2, 3, 4, 5 or 6, wherein the button assembly further comprises a fixing ring for fixing the rotating shaft.

A mobile terminal comprising the mobile terminal key assembly of any of claims 1-8.