WO2020238456A1

WO2020238456A1 - Mobile terminal

Info

Publication number: WO2020238456A1
Application number: PCT/CN2020/084924
Authority: WO
Inventors: 占智贵
Original assignee: 维沃移动通信有限公司
Priority date: 2019-05-31
Filing date: 2020-04-15
Publication date: 2020-12-03
Also published as: CN110174961A; CN110174961B

Abstract

A mobile terminal comprises a housing (100). The housing (100) comprises a front cover (110), a rear cover (130) and a middle frame (120) provided between the front cover (110) and the rear cover (130). The front cover (110) is provided with a display screen (300). The middle frame (120) is provided with a first key module (201). The first key module (201) senses a first pressing force acting upon the middle frame (120), and generates a first pressed signal according to the first pressing force. The rear cover (130) is provided with a second key module (202). The second key module (202) senses a second pressing force acting upon the rear frame (130), and generates a second pressed signal according to the second pressing force. Both the first key module (201) and the second key module (202) are positioned inside the housing (100). The first key module (201) and the second key module (202) are respectively connected to a control module of the mobile terminal. The control module responds according to the first pressed signal and the second pressed signal.

Description

Mobile terminal

Cross references to related applications

This application claims the priority of Chinese Patent Application No. 201910471681.2 filed in China on May 31, 2019, the entire content of which is incorporated herein by reference.

Technical field

The present disclosure relates to the technical field of communication equipment, and in particular to a mobile terminal.

Background technique

With the continuous development of the mobile terminal industry, people have higher and higher requirements for the design of mobile terminals. The button module can sense the pressing signal applied by the user, and the pressing signal can trigger various functional devices of the mobile terminal to realize various functions of the mobile terminal. Therefore, the button module is an important part of human-computer interaction.

In the conventional technology, a hole can be opened on the housing of the mobile terminal, at least a part of the keys of the key module is accommodated in the hole, and the user can press the key to output a pressing signal. However, opening a hole on the shell will destroy the appearance consistency of the shell, and at the same time will also cause the structural strength of the shell to decrease, and the shell is easily damaged. In order to solve this problem, the button module can be set in a hidden structure, that is, the button module is arranged in the shell, and the user can press the part of the shell corresponding to the button module, so that the pressing signal can be transmitted to the button module through this part. On the group, it controls the working status of the functional devices of the mobile terminal.

However, since the housing of a mobile terminal usually includes multiple parts, for example, the housing may include a middle frame and a back cover, a user pressing the middle frame can output a valid pressing signal. If the user presses the back cover, the back cover will be invalidly pressed. The signal is transmitted to the button module, causing the functional device to be falsely triggered.

Summary of the invention

The present disclosure discloses a mobile terminal to solve the problem that functional devices of the mobile terminal are easily triggered by mistake.

In order to solve the above problems, the present disclosure adopts the following technical solutions:

A mobile terminal includes a housing, the housing includes a front cover, a back cover, and a middle frame arranged between the front cover and the back cover, the front cover is provided with a display screen, and the middle A first button module is provided on the frame, the first button module senses the first pressure received by the middle frame and generates a first pressing signal according to the first pressure, and a second button module is provided on the back cover Group, the second button module senses the second pressure received by the back cover and generates a second pressing signal according to the second pressure. The first button module and the second button module are both located in the In the housing, the first button module and the second button module are respectively connected to the control module of the mobile terminal, and the control module performs operations according to the first pressing signal and the second pressing signal response.

Optionally, the first button module is disposed adjacent to the second button module, the first button module faces the middle frame, and the second button module faces the back cover.

Optionally, at least one of the first key module and the second key module is a pressure-type key module, the pressure-type key module includes a circuit board and a pressure chip, and the pressure chip is mounted On the circuit board.

Optionally, the pressure-type key module further includes an elastic member, the elastic member abuts against the pressure chip, and the pressure chip is located between the elastic member and the circuit board.

Optionally, the number of the pressure chip and the elastic member is at least two, the pressure chips are arranged at intervals, and the elastic members are arranged at intervals corresponding to the pressure chips.

Optionally, two adjacent elastic members are connected by a strip-shaped connecting portion.

Optionally, the elastic member includes a body part that abuts against the pressure chip and an extension part connected to the body part, the extension part extends from the edge of the body part to the circuit board, and There is a first preset distance between the extension part and the circuit board.

Optionally, the extension portion has an annular structure, the extension portion surrounds the pressure chip, and the extension portion is separated from the pressure chip by a second predetermined distance.

Optionally, the pressure-type key module further includes a reinforcing plate connected to the circuit board, and the reinforcing plate is located on a side of the circuit board away from the pressure chip.

Optionally, the pressure-type key module further includes assembling parts, and the assembling parts are respectively connected with the reinforcing plate and the middle frame.

The technical solution adopted by the present disclosure can achieve the following beneficial effects:

The mobile terminal disclosed in the present disclosure includes a first button module and a second button module. The first button module can sense a first pressure on the middle frame and generate a first pressing signal according to the first pressure. The group can sense the second pressure received by the back cover and generate a second pressing signal according to the second pressure. By comparing the magnitude of the first pressing signal and the second pressing signal, it can know whether there is a valid pressing signal and control the movement accordingly. The working status of the functional device of the terminal. It can be seen that this solution can improve the triggering accuracy of functional devices in the mobile terminal.

Description of the drawings

The drawings described here are used to provide a further understanding of the present disclosure and constitute a part of the present disclosure. The exemplary embodiments of the present disclosure and their descriptions are used to explain the present disclosure, and do not constitute an improper limitation of the present disclosure. In the attached picture:

FIG. 1 is a schematic diagram of a partial structure of a mobile terminal disclosed in an embodiment of the disclosure;

2 is a schematic structural diagram of a pressure-type button module in a mobile terminal disclosed in an embodiment of the disclosure;

Figure 3 is an exploded view of the pressure key module shown in Figure 2;

4 is a cross-sectional view of the pressure key module shown in FIG. 2.

Description of reference signs:

100-shell, 110-front cover, 120-middle frame, 130-rear cover, 201-first button module, 202-second button module, 210-circuit board, 220-pressure chip, 230-elastic part , 231- body part, 232- extension part, 240- strip connection part, 250- reinforcement board, 260- double-sided tape, 270- assembly parts, 300- display screen.

Detailed ways

In order to make the objectives, technical solutions, and advantages of the present disclosure clearer, the technical solutions of the present disclosure will be described clearly and completely in conjunction with specific embodiments of the present disclosure and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present disclosure.

The technical solutions disclosed in each embodiment of the present disclosure will be described in detail below with reference to the accompanying drawings.

As shown in FIGS. 1 to 4, embodiments of the present disclosure disclose a mobile terminal, which includes a housing 100, a first key module 201, a second key module 202, and a display screen 300.

The housing 100 is an installation basis for other components in the mobile terminal, and at least a part of the housing 100 can be used as an exterior part of the mobile terminal. In a specific embodiment, the housing 100 may include a front cover 110, a middle frame 120, and a rear cover 130. The front cover 110 and the rear cover 130 are respectively installed on opposite sides of the middle frame 120, that is, the middle frame 120 is located on the front cover. Between 110 and the back cover 130. In addition, the middle frame 120 may include a frame, and the frame may be arranged in a circle along the side of the mobile terminal. The display screen 300 may be installed on the front cover 110 and located between the front cover 110 and the middle frame 120, and the front cover 110 may be a glass cover.

The first button module 201 and the second button module 202 are both used to sense the pressure applied by the user, and generate a pressing signal according to the corresponding pressure. According to the pressing signal, the function of the mobile terminal (not shown) can be controlled. Working status. In order to improve the appearance consistency of the mobile terminal and the structural strength of the housing 100, the first key module 201 and the second key module 202 are both located in the housing 100, so there is no need to open holes on the housing 100 to accommodate the first key. The module 201 and at least a part of the second button module 202. The first key module 201 is disposed on the middle frame 120, and the second key module 202 is disposed on the back cover 130. That is, the first button module 201 and the second button module 202 are arranged at different positions of the housing 100. When the user presses the middle frame 120, the first button module 201 can sense the first The pressure generates a first pressing signal according to the first pressure. When the user presses the back cover 130, the second button module 202 can sense the second pressure received by the back cover 130 and generate a second pressing signal according to the second pressure. The first button module 201 and the second button module 202 are respectively connected to the control module of the mobile terminal. The control module can respond according to the first pressing signal and the second pressing signal described above, for example, comparing the first pressing The magnitude of the signal and the second pressing signal, and control the working state of the corresponding functional device according to the comparison result.

In the middle frame 120 corresponding to the first button module 201 and the back cover 130 corresponding to the second button module 202, the pressing signal generated by pressing only one of them is a valid signal. Therefore, it can be compared with the first button module The magnitude of the first pressing signal generated by the group 201 and the second pressing signal generated by the second key module 202 can be used to know whether there is a valid signal, and to control the working state of the functional device of the mobile terminal accordingly. It can be seen that this solution can improve the triggering accuracy of the functional devices in the mobile terminal and prevent the functional devices of the mobile terminal from being triggered by mistake.

Specifically, the first pressing signal generated by the middle frame 120 being pressed is the effective signal, if the first pressing signal generated by the first key module 201 is greater than or substantially equal to the second pressing signal generated by the second key module 202 Press the signal, then it can be determined that there is a valid signal at this time, and the corresponding functional device of the mobile terminal is triggered and enters the working state; if the first press signal generated by the first key module 201 is smaller than the first press signal generated by the second key module 202 2. Press the signal, it can be determined that there is no valid signal at this time, but the user accidentally presses the back cover 130, and the corresponding functional device of the mobile terminal is not triggered. The reverse is also true, so I won't repeat them here.

When the housing 100 includes the aforementioned middle frame 120 and the back cover 130, the first key module 201 may be disposed adjacent to the second key module 202, and the first key module 201 faces the middle frame 120, and more specifically, the first key module 201 faces the middle frame 120. A button module 201 can face the frame of the middle frame 120. The second button module 202 faces the rear cover 130. After this setting, the distance between the first key module 201 and the second key module 202 can be controlled within a small range, the first key module 201 and the middle frame 120, the second key module 202 and the back cover The distance between 130 can also be controlled within a small range, so that on the one hand, it can more sensitively perceive the effective pressing signal, and on the other hand, it can more accurately determine the false trigger situation.

There are many ways for the first button module 201 and the second button module 202 to detect the pressing signal. For example, the first button module 201 and the second button module 202 may include steel sheets. Curvature deformation will occur in the meantime, and the pressing signal will be detected. However, the sensitivity of this method is low. Once the material of the housing 100 is relatively hard, or the display 300 of the mobile terminal is a curved screen, etc., the slight deformation caused by the user pressing the housing 100 will not be recognized. Therefore, an accurate pressing signal cannot be obtained, or even a pressing signal cannot be detected. In order to solve this problem, at least one of the first key module 201 and the second key module 202 can be configured as a pressure key module. The pressure key module includes a circuit board 210 and a pressure chip 220. The pressure chip 220 is mounted on the circuit board 210. The circuit board 210 here can be electrically connected to the main board of the mobile terminal. Specifically, the circuit board 210 can adopt a flexible printed circuit (FPC); the pressure chip 220 can directly detect the size of the pressure, and its sensitivity is higher, even if the middle frame The deformation of 120 and the back cover 130 is relatively small, and the pressure chip 220 can also detect the pressing signal. On the one hand, this structure can improve the detection accuracy of the pressing signal, and on the other hand, it can also appropriately reduce the force with which the user presses the housing 100, thereby improving the user's experience when using the mobile terminal.

Optionally, in order to enhance the above effect, both the first key module 201 and the second key module 202 can be configured as pressure key modules. Further, in order to simplify the structure of the mobile terminal, the first key module 201 and the second key module 202 may adopt pressure-type key modules with the same structure.

In a further embodiment, the above-mentioned pressure-type key module may further include an elastic member 230 that abuts against the pressure chip 220, and the pressure chip 220 is located between the elastic member 230 and the circuit board 210. The elastic piece 230 and the pressure chip 220 may not be connected by a connecting piece, and the two only need to contact each other. After the mobile terminal is assembled, the elastic piece 230 and the pressure chip 220 will be attached to each other after being pressed by the housing 100 and other components. Together, therefore, there is a larger contact area between the elastic member 230 and the pressure chip 220. When the user presses the housing 100, the elastic member 230 can be deformed, thereby always maintaining a larger contact area with the pressure chip 220, so that the pressing signal is more accurately transmitted to the pressure chip 220, so the detection accuracy of the pressing signal is higher, and The pressure chip 220 is not easy to be damaged due to excessive local force.

In order to facilitate the user to use the mobile terminal, the area on the middle frame 120 and the back cover 130 that can be pressed by the user is usually relatively large, so that when the user's pressing force acts in a relatively large range, the first button module 201 and the second button The module 202 can obtain the corresponding pressing signal so as to control the working state of the functional device. To this end, the number of the pressure chips 220 and the elastic members 230 may be set to at least two, the pressure chips 220 are arranged at intervals, and the elastic members 230 are arranged at intervals corresponding to the pressure chips 220. No matter where the user presses the middle frame 120 and the back cover 130, there are corresponding pressure chips 220 and elastic members 230 that can obtain the pressing signal. It should be noted that the specific number of the pressure chip 220 and the elastic member 230 can be flexibly selected according to the actual situation of the mobile terminal, which is not limited herein.

Optionally, the above-mentioned multiple elastic members 230 may not be connected to each other, or may be connected to each other. In contrast, when the elastic members 230 are connected to each other, the operation of assembling the mobile terminal will be easier. Therefore, in the embodiment of the present disclosure, two adjacent elastic members 230 may be connected by the bar-shaped connecting portion 240. The material of the bar-shaped connecting portion 240 and the elastic member 230 may be the same or different. In order to reduce the manufacturing cost of the pressure key module, the material of the bar-shaped connecting portion 240 and the elastic member 230 may be the same in the embodiment of the present disclosure. Optionally, both the strip-shaped connecting portion 240 and the elastic member 230 may be made of silicone material, and they are integrally formed.

In an alternative embodiment, as shown in FIG. 4, the elastic member 230 may include a body portion 231 that abuts against the pressure chip 220 and an extension portion 232 connected to the body portion 231, and the extension portion 232 extends from the body portion 231. The edge of φ extends toward the circuit board 210, and the extension 232 is separated from the circuit board 210 by a first predetermined distance, so that the elastic member 230 has a certain space after being pressed to move relative to the circuit board 210, thereby preventing the elastic member 230 from moving Interference with the circuit board 210 affects the accuracy of the detection result and affects the life of the pressure key module. The extension 232 here can separate the pressure chip 220 from other components to prevent other components in the housing 100 from colliding with the pressure chip 220 when the mobile terminal falls, so as to protect the pressure chip 220.

The above-mentioned extension 232 may be provided only on a part of the edge of the body portion 231, but in order to improve the protection effect of the extension 232 on the pressure chip 220, the extension 232 may be provided in a ring structure, and the extension 232 surrounds the pressure chip 220, thereby Prevent the pressure chip 220 from colliding with other parts in more directions.

In addition, the extension portion 232 may be separated from the pressure chip 220 by a second predetermined distance. When the elastic member 230 is pressed, the extension portion 232 may deform relative to the pressure chip 220. The existence of the second predetermined distance can prevent The extension portion 232 is in direct contact with the pressure chip 220 so as to prevent interference by the extension portion 232 when the pressure chip 220 detects a pressing signal. Therefore, such an arrangement can improve the detection accuracy of the pressure key module.

It should be noted that both the first preset distance and the second preset distance here can be flexibly selected according to the actual situation of the mobile terminal, which is not limited herein.

In order to improve the structural strength of the pressure-type key module, the pressure-type key module in the embodiment of the present disclosure further includes a reinforcing plate 250 connected to the circuit board 210, and the reinforcing plate 250 is located on the circuit board 210 The side away from the pressure chip 220. Optionally, the reinforcing plate 250 may be bonded to the circuit board 210 through a connecting member such as a double-sided tape 260 or the like. Further, the pressure-type key module may further include an assembly part 270 which is connected to the reinforcing plate 250 and the middle frame 120 respectively. In other words, the entire pressure-type button module can be installed on the middle frame 120 through the assembly 270, and the structure of the assembly 270 can better fit the middle frame 120, thereby improving the pressure-type button module and the middle frame 120. Connection strength. Optionally, the assembling part 270 may be bonded to the middle frame 120, or may be fixed to the housing 100 by connecting parts such as threaded fasteners and rivets.

The mobile terminal disclosed in the embodiments of the present disclosure may be a smart phone, a tablet computer, an e-book reader or a wearable device. Of course, the mobile terminal may also be other devices, which is not limited in the embodiments of the present disclosure.

The above embodiments of the present disclosure focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the conciseness of the text, here is No longer.

The foregoing descriptions are merely embodiments of the present disclosure, and are not used to limit the present disclosure. For those skilled in the art, the present disclosure can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure should be included in the scope of the claims of the present disclosure.

Claims

A mobile terminal includes a housing, the housing includes a front cover, a back cover, and a middle frame arranged between the front cover and the back cover, the front cover is provided with a display screen, and the middle The frame is provided with a first button module, the first button module senses the first pressure received by the middle frame and generates a first pressing signal according to the first pressure, and the back cover is provided with a second button module Group, the second button module senses the second pressure received by the back cover and generates a second pressing signal according to the second pressure. The first button module and the second button module are both located in the Inside the housing, the first button module and the second button module are respectively connected to the control module of the mobile terminal, and the control module performs operations according to the first pressing signal and the second pressing signal response.
The mobile terminal according to claim 1, wherein the first button module is disposed adjacent to the second button module, the first button module faces the middle frame, and the second button module faces The back cover.
The mobile terminal according to claim 1, wherein at least one of the first key module and the second key module is a pressure-type key module, and the pressure-type key module includes a circuit board and The pressure chip is mounted on the circuit board.
The mobile terminal according to claim 3, wherein the pressure-type button module further comprises an elastic member, the elastic member abuts the pressure chip, and the pressure chip is located between the elastic member and the circuit Between the boards.
The mobile terminal according to claim 4, wherein the number of the pressure chip and the elastic member is at least two, the pressure chips are arranged at intervals, and each elastic member corresponds to each pressure chip Arranged at intervals.
The mobile terminal according to claim 5, wherein two adjacent elastic members are connected by a bar-shaped connecting portion.
The mobile terminal according to claim 4, wherein the elastic member comprises a body part that abuts against the pressure chip and an extension part connected to the body part, and the extension part extends from an edge of the body part. The circuit board extends, and there is a first predetermined distance between the extension portion and the circuit board.
8. The mobile terminal of claim 7, wherein the extension portion has a ring structure, the extension portion surrounds the pressure chip, and the extension portion is separated from the pressure chip by a second predetermined distance.
The mobile terminal according to claim 3, wherein the pressure-type button module further comprises a reinforcing plate, the reinforcing plate is connected to the circuit board, and the reinforcing plate is located away from the circuit board. The side of the pressure chip.
9. The mobile terminal according to claim 9, wherein the pressure-type key module further comprises assembly parts, and the assembly parts are respectively connected to the reinforcing plate and the middle frame.