CN111986943A

CN111986943A - Key device and terminal equipment

Info

Publication number: CN111986943A
Application number: CN202010783211.2A
Authority: CN
Inventors: 安鑫荣
Original assignee: TCL Communication Ningbo Ltd
Current assignee: TCL Communication Ningbo Ltd
Priority date: 2020-08-06
Filing date: 2020-08-06
Publication date: 2020-11-24
Anticipated expiration: 2040-08-06
Also published as: CN111986943B

Abstract

The application discloses a key device and terminal equipment. This application is through the material replacement that will make first gasket for insulating material to reduced the influence of setting up the button device in terminal equipment metal frame to the antenna performance, and then promoted the utilization ratio in terminal equipment space.

Description

Key device and terminal equipment

Technical Field

The application belongs to the technical field of electronics, and particularly relates to a key device and a terminal device.

Background

At present, a metal frame of a full-screen is generally adopted in a medium-end or high-end mobile phone, and an antenna usually adopts the metal frame as a main radiator. Since the design of high screen ratio results in very small clearance space between the upper and lower antennas, the space on both sides of the main board of the mobile phone is used as the antenna clearance to arrange part of the antennas. However, the antenna is sometimes located at the key position, and since the conventional key mostly uses a metal piece, the performance of the antenna is greatly affected.

In order to solve the above technical problems, the key positions are usually avoided as much as possible, but the implementation reduces the utilization rate of the antenna design for the mobile phone space. For a 4G handset, it has fewer antennas, at least to meet the design requirements, but for a 5G handset, it has a large number of antennas, so it is difficult to meet the design requirements, and antenna performance must be sacrificed.

In view of the above, a new key design scheme is needed to solve the existing technical problems.

Disclosure of Invention

In order to solve the above technical problem, the present application provides a key device, which is suitable for a terminal device, and the key device includes: the key cap assembly is arranged on one side wall of the shell of the mobile terminal; the flexible circuit board is respectively connected with the key cap assembly and the main board of the mobile terminal; wherein the key cap assembly comprises: the key comprises a key cap and at least one first gasket arranged at the bottom end of the key cap; the material of the at least one first gasket is an insulating material.

Further, the keycap assembly further includes: at least one second gasket, wherein each second gasket is correspondingly arranged on the first gasket.

Further, the material of the at least one second gasket has elasticity.

Furthermore, at least one key switch is arranged on one side of the flexible circuit board, and the at least one key switch and the at least one second gasket are correspondingly arranged.

Further, the at least one second gasket is made of silicone or rubber.

Further, the insulating material is plastic.

According to another aspect of the present application, a terminal device is further provided, where the terminal device includes any one of the above-mentioned key devices.

Further, the key device is arranged in a clearance area of the terminal equipment.

Furthermore, an antenna device is arranged in the clearance area corresponding to the key device.

Further, the frequency band of the antenna device is 1176 MHz.

The advantage of this application lies in, compares in prior art, and this application is through the material replacement that will make first gasket for insulating material to reduced the influence of setting up the button device in terminal equipment metal frame to the antenna performance, and then promoted the utilization ratio in terminal equipment space.

Drawings

The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a key device according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a terminal device provided in an embodiment of the present application.

Fig. 3 is a schematic structural diagram of another terminal device provided in the application embodiment.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate. In this embodiment, the analog display screen touch unit is connected to the head tracking unit, and is configured to acquire a moving path of a sensing cursor in the display device.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

As shown in fig. 1, a schematic structural diagram of a key device 10 provided in the embodiments of the present application is applicable to a terminal device (see fig. 2). The key device 10 includes: a key cap assembly 6 and a flexible circuit board 7.

The key cap assembly 6 is disposed on a side wall 31 of the case 30 of the terminal device 500. Because the contact surface between the casing 30 and the key cap assembly 6 is tightly attached, the casing 30 and the key cap assembly 6 can be fixed more firmly.

In some embodiments, a key through hole 40 is provided in a sidewall of the housing 30 for mounting the key cap assembly 6. In some embodiments, the housing 30 is a metal frame. A key through hole 40 is formed at one side of the metal frame (i.e., at the position of the side wall of the housing).

In addition, a fitting groove (not shown) surrounding the key through-hole 40 is provided on the inner side surface of the case 30.

The flexible circuit board 7 is connected to the key cap assembly 6 and the main board of the mobile terminal 500 respectively.

The key cap assembly 6 includes: a key cap 1, at least one first pad 2 and at least one second pad 3. The outer diameter of the key cap 1 is smaller than the aperture of the key through hole 40, so that the key cap 1 can move in the key through hole 40 conveniently.

In some embodiments, the number of the first pads 2 and the second pads 3 is two. The first gasket 2 is arranged at the bottom end of the key cap 1. The material of the first gasket 2 is an insulating material. Specifically, the insulating material is plastic. Compared with the prior art, the first gasket is a metal piece, the application replaces the material for manufacturing the first gasket 2 with the insulating material, so that the influence of the key device 10 arranged in the metal frame of the terminal device on the performance of the antenna is reduced, and in the process, the same as the prior art is realized, and therefore the space utilization rate of the terminal device is improved.

The material of the second gasket 3 has elasticity and can be silica gel or rubber. The second pad 3 with elasticity can restore the key cap 1 to the original position by the elasticity of the second pad 3 when the key cap 1 is pressed.

At least one key switch 4 is further arranged on one side of the flexible circuit board 7, and the at least one key switch 4 is arranged corresponding to the at least one second gasket 3. In the embodiment of the present application, the number of the key switches 4 is two.

As shown in fig. 2, a schematic structural diagram of a terminal device 500 provided in the embodiment of the present application includes the key device 10 described in the foregoing embodiment.

The key device 10 is disposed in the clearance area 20 of the terminal device 500. The effect of the clearance area 20 is mainly to make metal keep away from the antenna body (metal shielding), and secondly, also can be through changing the size of clearance area 20 in order to change the resonant frequency of antenna, moreover, clearance area 20 changes the division of antenna near field and far field to a certain extent.

An antenna device is arranged in the clearance area 20 corresponding to the key device 10. In the embodiment of the present application, the frequency band of the antenna device is 1176 MHz.

As shown in fig. 3, for a specific structure of the terminal device 500 provided in the embodiment of the present application, the terminal device 500 may be an intelligent communication terminal, a tablet computer, or the like. The terminal device further includes the following components.

The RF circuit 510 is used for receiving and transmitting electromagnetic waves, and performing interconversion between the electromagnetic waves and electrical signals, so as to communicate with a communication network or other devices. RF circuit 510 may include various existing circuit elements for performing these functions, such as an antenna, a radio frequency transceiver, a digital signal processor, an encryption/decryption chip, a Subscriber Identity Module (SIM) card, memory, and so forth. RF circuit 510 may communicate with various networks such as the internet, an intranet, a wireless network, or with other devices over a wireless network. The wireless network may comprise a cellular telephone network, a wireless local area network, or a metropolitan area network. The Wireless network may use various Communication standards, protocols, and technologies, including, but not limited to, Global System for Mobile Communication (GSM), Enhanced Data GSM Environment (EDGE), Wideband Code Division Multiple Access (WCDMA), Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Wireless Fidelity (Wi-Fi) (e.g., Institute of Electrical and Electronics Engineers (IEEE) standard IEEE802.11 a, IEEE802.11 b, IEEE802.11g, and/or IEEE802.11 n), Voice over Internet Protocol (VoIP), world wide mail Access (Microwave Access for micro), wimax-1, other suitable short message protocols, and any other suitable Protocol for instant messaging, and may even include those protocols that have not yet been developed.

The memory 520 may be used to store software programs and modules, and the processor 580 executes various functional applications and data processing by operating the software programs and modules stored in the memory 520. The memory 520 may include high speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 520 may further include memory located remotely from the processor 580, which may be connected to the terminal device 500 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The input unit 530 may be used to receive input numeric or character information and generate a keyboard, mouse, joystick, optical or trackball signal input related to user setting and function control. In particular, the input unit 530 may include a touch sensitive surface 531 as well as other input devices 532. The touch sensitive surface 531, also referred to as a touch display screen or a touch pad, may collect touch operations by a user on or near the touch sensitive surface 531 (e.g. operations by a user on or near the touch sensitive surface 531 using a finger, a stylus, or any other suitable object or attachment) and drive the corresponding connection device according to a predetermined program. Alternatively, the touch sensitive surface 531 may comprise two parts, a touch detection means and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, and sends the touch point coordinates to the processor 580, and can receive and execute commands sent by the processor 580. In addition, the touch sensitive surface 531 may be implemented using various types of resistive, capacitive, infrared, and surface acoustic waves. The input unit 530 may comprise other input devices 532 in addition to the touch sensitive surface 531. In particular, other input devices 532 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like.

The display unit 540 may be used to display information input by or provided to the user and various graphic user interfaces of the terminal apparatus 500, which may be configured by graphics, text, icons, video, and any combination thereof. The Display unit 540 may include a Display panel 541, and optionally, the Display panel 541 may be configured in the form of an LCD (Liquid Crystal Display), an OLED (Organic Light-Emitting Diode), or the like. Further, the touch-sensitive surface 531 can overlie the display panel 541 such that, when a touch event is detected at or near the touch-sensitive surface 531, it is passed to the processor 580 for determining the type of touch event, whereupon the processor 580 provides a corresponding visual output on the display panel 541 in dependence upon the type of touch event. Although in the figures, the touch-sensitive surface 531 and the display panel 541 are shown as two separate components to implement input and output functions, in some embodiments, the touch-sensitive surface 531 and the display panel 541 can be integrated to implement input and output functions.

The terminal device 500 may also include at least one sensor 550, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor that adjusts the brightness of the display panel 541 according to the brightness of ambient light, and a proximity sensor that turns off the display panel 541 and/or a backlight when the terminal apparatus 500 moves to the ear. As one of the motion sensors, the gravity acceleration sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when the mobile terminal is stationary, and can be used for applications of recognizing the posture of a communication terminal (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer and tapping) and the like; as for other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be configured in the terminal device 500, detailed descriptions thereof are omitted.

The audio circuit 560, speaker 561, microphone 562 may provide an audio interface between a user and the terminal device 500. The audio circuit 560 may transmit the electrical signal converted from the received audio data to the speaker 561, and convert the electrical signal into a sound signal by the speaker 561 for output; on the other hand, the microphone 562 converts the collected sound signal into an electric signal, which is received by the audio circuit 560 and converted into audio data, which is then processed by the audio data output processor 580, and then transmitted to, for example, another terminal via the antenna device 510, or the audio data is output to the memory 520 for further processing. The audio circuit 560 may also include an earbud jack to provide communication of a peripheral headset with the terminal device 500.

The terminal device 500, through the transmission module 570 (e.g., Wi-Fi module), may assist the user in e-mail, web browsing, streaming media access, etc., which provides the user with wireless broadband internet access. Although the transmission module 570 is shown in the drawing, it is understood that it does not belong to the essential constitution of the terminal device 500 and can be omitted entirely as needed within the scope not changing the essence of the invention.

The processor 580 is a control center of the terminal device 500, connects various parts of the entire communication terminal using various interfaces and lines, and performs various functions of the terminal device 500 and processes data by operating or executing software programs and/or modules stored in the memory 520 and calling data stored in the memory 520, thereby performing overall monitoring of the communication terminal. Optionally, processor 580 may include one or more processing cores; in some embodiments, processor 580 may integrate an application processor, which handles primarily the operating system, user interface, applications, etc., and a modem processor, which handles primarily wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 580.

Terminal device 500 also includes a power supply 590 (e.g., a battery) that provides power to various components and, in some embodiments, may be logically coupled to processor 580 via a power management system to manage charging, discharging, and power consumption management functions via the power management system. The power supply 590 may also include one or more dc or ac power sources, recharging systems, power failure detection circuitry, power converters or inverters, power status indicators, and any other components.

Although not shown, the terminal device 500 may further include a camera (e.g., a front camera, a rear camera), a bluetooth module, and the like, which are not described in detail herein.

In specific implementation, the above modules may be implemented as independent entities, or may be combined arbitrarily to be implemented as the same or several entities, and specific implementation of the above modules may refer to the foregoing method embodiments, which are not described herein again.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

The principle and the implementation of the present application are explained by applying specific examples, and the above description of the embodiments is only used to help understanding the technical solution and the core idea of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.

Claims

1. A key device suitable for a terminal device, the key device comprising:

the key cap assembly is arranged on one side wall of the shell of the mobile terminal;

the flexible circuit board is respectively connected with the key cap assembly and the main board of the mobile terminal;

wherein the key cap assembly comprises: the key comprises a key cap and at least one first gasket arranged at the bottom end of the key cap; the material of the at least one first gasket is an insulating material.

2. The key device of claim 1, wherein the key cap assembly further comprises:

at least one second gasket, wherein each second gasket is correspondingly arranged on the first gasket.

3. The key device of claim 2, wherein the material of the at least one second gasket is resilient.

4. The key device according to claim 2, wherein at least one key switch is further disposed on one side of the flexible circuit board, and the at least one key switch is disposed corresponding to the at least one second pad.

5. The key device according to claim 2, wherein the at least one second gasket is made of silicone or rubber.

6. The key device of claim 1, wherein the insulating material is plastic.

7. A terminal device, comprising: the key arrangement of any one of claims 1 to 4.

8. The terminal device of claim 7, wherein the button device is disposed in a headroom area of the terminal device.

9. The terminal device of claim 7, wherein an antenna device is disposed in the clearance zone corresponding to the key device.

10. The terminal device according to claim 9, wherein the frequency band of the antenna means is 1176 MHz.