WO2018068606A1

WO2018068606A1 - Button assembly and electronic device

Info

Publication number: WO2018068606A1
Application number: PCT/CN2017/101616
Authority: WO
Inventors: 王小明
Original assignee: 深圳信炜科技有限公司
Priority date: 2016-10-12
Filing date: 2017-09-13
Publication date: 2018-04-19
Also published as: CN106374904A

Abstract

A button assembly and an electronic device comprising the button assembly. The button assembly (20) comprises a biological information sensing module (21) and a haptic switch (23). The biological information sensing module (21) comprises a biological information sensor (211) and a flexible circuit board (213) which are connected to each other. The biological information sensor (211) is used for sensing biological information about a user. The haptic switch (23) and the biological information sensor (211) are both arranged on the flexible circuit board (213). The touch switch (23) and the biological information sensor (211) both perform signal transmission through the flexible circuit board (213).

Description

Button assembly and electronic device

Technical field

The present invention relates to the field of biometric information recognition technologies, and more particularly to a button assembly having a biometric information sensor and an electronic device including the button assembly.

Background technique

Currently, fingerprint sensors are becoming standard on more and more electronic devices (eg, mobile phones). Typically, the fingerprint sensor is placed under the Home button (or button component) and the tactile switch is set under the fingerprint sensor. When the user presses Home, the tactile switch receives any force exerted by the user's finger on the Home button, transmits an electrical signal indicating that the user's finger is pressing the button assembly to the button circuit, and provides tactile feedback to the user's finger to indicate that the Home button is Press. In addition, the fingerprint sensor senses the fingerprint information of the user's finger.

The fingerprint sensor is connected to other circuits (eg, a motherboard) through a flexible circuit board, and the tactile switch is connected to other circuits (eg, a motherboard) through another flexible circuit board, resulting in the Home button. There are many parts, which not only occupy more internal space of electronic equipment, but also lead to higher product cost.

Summary of the invention

In order to solve the above technical problems, the present invention provides a button assembly and an electronic device that occupy less internal space and lower product cost.

To achieve the above object, the present invention provides the following technical solutions:

A button assembly that includes:

a biometric information sensing module comprising a connected biometric information sensor and a flexible circuit board for sensing biometric information of the user; and

The tactile switch, and the biometric information sensor are disposed on the flexible circuit board, and the tactile switch and the biometric information sensor both transmit signals through the flexible circuit board.

Optionally, the tactile switch and the biometric information sensor are disposed on the flexible circuit board The same side.

Optionally, the tactile switch is disposed opposite to the biometric information device after being bent by the flexible circuit board.

Optionally, one side of the flexible circuit board facing away from the tactile switch is connected to the biometric information sensor through a colloid.

Optionally, the flexible circuit board is further connected to the main board, and the tactile switch and the biometric information signal are transmitted between the flexible circuit board and the main board.

Optionally, the biometric information sensing module further includes a first reinforcing element and a second reinforcing element, the first reinforcing element being disposed at a position of the flexible circuit board facing away from the biometric information sensor, A second reinforcing element is disposed at a position of the flexible circuit board opposite the tactile switch, the first reinforcing element and the second reinforcing element being adhesively bonded together.

Optionally, the biometric information sensing module further includes a conductive member disposed around the biometric information sensor, and the conductive member receives a ground signal when the biometric information sensor performs biometric information sensing.

Optionally, the biometric information sensing module further includes a cover plate disposed on a side of the biometric information sensor for receiving biometric information input.

Optionally, the biological information sensing module is one or more of a fingerprint information sensing module, a heartbeat recognition sensing module, and a blood oxygen recognition sensing module.

The present invention also provides an electronic device comprising the button assembly of any of the above.

Optionally, the electronic device includes a protective cover plate and a touch display panel disposed in a stack, the touch display panel is configured to perform image display and touch sensing, and the button cover is disposed on the protective cover, the button component Exposure to the button hole.

Since the biometric information sensor and the tactile switch are both disposed on the same flexible circuit board, a flexible circuit board is saved, thereby saving product cost, and the button assembly is compact in structure, saving internal space of the electronic device.

Other embodiments of the present invention will be apparent to those skilled in the art in the <RTIgt; It will be appreciated that the present invention may be modified in various obvious aspects without departing from the spirit and scope of the invention. Accordingly, the drawings and detailed description are to be regarded as

DRAWINGS

The features and advantages of the present invention will become more apparent from the detailed description of the exemplary embodiments.

FIG. 1 is a schematic structural view of an embodiment of an electronic device according to the present invention.

2 is a schematic exploded view of an embodiment of a button assembly of the electronic device of FIG. 1.

FIG. 3 is a schematic view showing the assembled structure of the button assembly shown in FIG. 2. FIG.

4 is a schematic view showing the assembled structure of another angle of the button assembly shown in FIG. 3.

detailed description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be embodied in a variety of forms and should not be construed as being limited to the embodiments set forth herein. To those skilled in the art. The thickness and size of each layer shown in the drawings may be exaggerated, omitted or schematically shown, and the number of related elements may be schematically illustrated for convenience or clarity. In addition, the size of the component does not fully reflect the actual size, and the number of related components does not fully reflect the actual number.

Furthermore, the described features, structures may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are set forth However, those skilled in the art will appreciate that the technical solution of the present invention can be practiced without one or more of the specific details or other structures, components, and the like. In other instances, well-known structures or operations are not shown or described in detail to avoid obscuring the invention.

In the description of the present invention, it is to be understood that the terms "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", The orientation or positional relationship of the "top", "bottom", "inside", "outside" and the like is based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and a simplified description, rather than indicating or implying The position or element referred to must be constructed and operated in a particular orientation, and is not to be construed as limiting the invention.

Further, in the description of the present invention, it is to be understood that “a plurality” includes two and two or more, and “a plurality” includes two or more, unless the invention specifically dictates otherwise set.

Please refer to FIG. 1. FIG. 1 is a schematic structural diagram of an embodiment of an electronic device according to the present invention. The electronic device 100 is, for example, a portable electronic product, a home-based electronic product, or a vehicle-mounted electronic product. Among them, portable electronic products are various types of mobile terminals, such as mobile phones, tablet computers, notebook computers, and wearable products; and home-based electronic products such as smart door locks, televisions, refrigerators, Various suitable electronic products such as desktop computers; vehicle-mounted electronic products such as car navigation systems, car DVDs and other suitable electronic products. The electronic device 100 includes a protective cover 10 and a button assembly 20. The protective cover 10 is provided with a button hole 101. The button assembly 20 is exposed at the button hole 101 to receive a user's pressing or sliding operation. The electronic device 100 may further include components such as a main board (not shown), a touch display device (not labeled), and a housing 40. The outer casing 30 cooperates with the protective cover 10 to form a receiving space for receiving the main board, the touch display device, and the button assembly 20 therein. The touch display device and the main board are disposed under the protective cover 10, and are sequentially stacked with the protective cover. The touch display device is for performing image display and touch sensing. The main board is used for signal processing and correspondingly controls the electronic device 100 to perform corresponding functions.

The electronic device 100 may include other circuits, such as button circuits and the like, in addition to the elements listed above. It is also feasible for the electronic device 100 to increase or decrease certain components corresponding to those skilled in the art. Elements related to the invention are listed primarily in this application to highlight the focus of the invention.

In the present embodiment, the button assembly 20 is disposed on the front surface of the electronic device 100. However, the button assembly 20 may also be disposed at other suitable positions such as the side and the back of the electronic device 100.

Please refer to FIG. 2 to FIG. 4 together. FIG. 2 is a schematic exploded view of an embodiment of the button assembly 20. FIG. 3 is a schematic view showing the assembled structure of the button assembly 20 shown in FIG. 2. 4 is a schematic view showing the assembled structure of the button assembly 20 of FIG. 3 at another angle. The button assembly 20 includes a biological information sensing module 21 and a tactile switch 23. The biometric information sensing module 21 includes a biometric information sensor 211 and a flexible circuit board 213. The tactile switch 23 and the biometric information sensor 211 are both disposed on the flexible circuit board 213. Both the tactile switch 23 and the biometric information sensor 211 perform signal transmission through the flexible circuit board 213.

The tactile switch 23 is configured to receive any force applied by the user's finger on the button assembly 20, An electrical signal representative of the user's finger pressing the button assembly 20 is transmitted through the flexible circuit board 213 to the button circuit and tactile feedback can be provided to the user's finger to indicate that the button assembly 20 is depressed. The button circuit is connected, for example, to the motherboard or to the motherboard.

The biometric information sensing module 21 is one or more of a fingerprint information sensing module, a heartbeat recognition sensing module, and a blood oxygen recognition sensing module.

The biometric information sensor 211 is configured to sense biometric information of a user. The biological information is, for example, fingerprint information. The biometric information sensor 211 performs signal transmission with the main board through the flexible circuit board 23. The biometric information sensor 211 may have various suitable shapes such as a circle, an elongated shape, a square shape, an elliptical shape, and the like.

In the present embodiment, the biometric information sensor 211 and the tactile switch 23 are disposed on the same side of the flexible circuit board 213. The tactile switch 23 is disposed opposite to the biometric information sensor 211 after being bent by the flexible circuit board 213. One side of the flexible circuit board 23 facing away from the tactile switch 23 is connected to the biometric information sensor 211, for example by means of a glue.

The biometric information sensing module 21 can further include a first stiffening element 215 and a second stiffening element 217. The first reinforcing member 215 is disposed at a position where the flexible circuit board 213 faces away from the biometric information sensor 211. The second stiffening element 217 is disposed at a position of the flexible circuit board 213 facing away from the tactile switch 23. The first reinforcing element 215 and the second reinforcing element 217 are bonded together by a glue. Thus, when the button assembly 20 is pressed, the button assembly 20 can further implement the function of sensing the user's biological information while implementing the button function.

Since the biometric information sensor 211 and the tactile switch 23 are both disposed on the same flexible circuit board 213, a flexible circuit board is saved compared with the existing button assembly, thereby saving product cost, and in addition, the button assembly The structure 20 is compact, thereby saving the internal space of the electronic device 100.

Optionally, the biometric information sensing module 21 may further include a conductive member 218 disposed around the biometric information sensor 211. When the biometric information sensor 211 performs biometric information sensing, the conductive member 218 receives a ground signal to function as an electrical isolation to prevent external interference with the sensing of the biometric information. The ground signal is typically a signal on the ground or system ground of the electronic device 100, typically a voltage signal of, for example, 0 volts (V). The conductive member 218 has a downwardly recessed portion compared to the protective cover 10, thereby guiding the user's finger to press the button Button assembly 20. The conductive member is, for example, a ring structure.

When the biometric information sensor 211 is a fingerprint sensor, the fingerprint sensor is, for example, a capacitive fingerprint sensor. The conductive member 218 receives the ground signal, which can reduce external interference when the fingerprint sensor detects capacitance.

Optionally, the biometric information sensing module 21 may further include a cover plate 219 disposed on a side of the biometric information sensor 211 for receiving biometric information input. The cover plate 219 is, for example, a sapphire cover, a glass cover, a ceramic cover, or the like. The cover plate 219 may have various suitable shapes such as a circular shape, an elongated shape, a square shape, and an elliptical shape.

While the present disclosure has been described with reference to various embodiments, it is understood that these embodiments are illustrative, and the scope of the invention is not limited thereto. Many changes, modifications, additions, and improvements are possible. More generally, embodiments in accordance with the present disclosure are described in the context of particular embodiments. The functions may be separated or combined in different ways in the process of the various embodiments disclosed herein, or may be described using different terms. These and other variations, modifications, additions, and improvements may be made within the scope of the present disclosure as defined by the following claims.

Claims

A button assembly that includes:

a biometric information sensing module comprising a connected biometric information sensor and a flexible circuit board for sensing biometric information of the user; and

The tactile switch, and the biometric information sensor are disposed on the flexible circuit board, and the tactile switch and the biometric information sensor both transmit signals through the flexible circuit board.
The button assembly of claim 1 wherein said tactile switch and said biometric sensor are disposed on the same side of said flexible circuit board.
A button assembly according to claim 1 or 2, wherein said tactile switch is disposed opposite said biometric sensor after being bent by said flexible circuit board.
A button assembly according to claim 1 or 2, wherein one side of said flexible circuit board facing away from said tactile switch is connected to said biometric information sensor via a gel.
The button assembly according to claim 1 or 2, wherein the flexible circuit board is further connected to a main board, and the tactile switch and the biometric information sensor are both passed between the flexible circuit board and the main board. Signal transmission.
The button assembly according to claim 1 or 2, wherein said biometric sensing module further comprises a first reinforcing member and a second reinforcing member, said first reinforcing member being disposed on said flexible circuit board Opposite the position of the biometric information sensor, the second reinforcing element is disposed at a position of the flexible circuit board facing away from the tactile switch, and the first reinforcing element and the second reinforcing element are bonded by a colloid Together.
The button assembly according to claim 1, wherein said biometric information sensing module further comprises a conductive member disposed around said biometric information sensor, said biometric information sensor performing biometric information sensing, said The conductive member receives the ground signal.
A button assembly according to claim 7, wherein said biometric sensing module further comprises a cover plate disposed on a side of said biometric information sensor for receiving bioinformatic input.
The button assembly of claim 1 , wherein the biometric information sensing module is one or more of a fingerprint information sensing module, a heartbeat recognition sensing module, and a blood oxygen sensing module. Kind.
An electronic device comprising the button assembly of any of claims 1-9.
The electronic device according to claim 10, wherein said electronic device comprises a protective cover plate and a touch display panel which are arranged in a stack, said touch display panel being for performing image display and touch sensing, said protective cover A button hole is disposed thereon, and the button assembly is exposed at the button hole.