CN213403124U - Sealing structure and mobile terminal - Google Patents

Abstract

The application provides a sealing structure, which is used for a pressing type fingerprint module and comprises an outer shell, a fingerprint module and a sealing washer; the fingerprint module comprises a fingerprint identification chip and a circuit substrate; the outer shell is provided with a through hole for embedding a fingerprint identification chip; a mounting cavity is formed in the outer shell, the mounting cavity is communicated with the through hole and accommodates the circuit substrate, and the first surface of the circuit substrate is stopped on the inner wall of the outer shell; the sealing washer is arranged on the inner wall of the outer shell, arranged around the fingerprint identification chip and detachably connected with the first surface of the circuit substrate. The application also provides a mobile terminal comprising the sealing structure. This application seals fingerprint module week through using seal ring on mobile terminal, prevents that steam and dust from getting into mobile terminal inside from the clearance of fingerprint identification module week, damages inside device, subtracts short mobile terminal life, and seal ring can effectively eliminate the abnormal sound that the touching of fingerprint module and assembly face produced.

Description

Sealing structure and mobile terminal

Technical Field

The application relates to the field of fingerprint identification, in particular to a sealing structure and a mobile terminal.

Background

Along with the application of fingerprint identification technique on various mobile terminal is more and more extensive, the structural design of fingerprint identification module on mobile terminal is also more and more important. But the type of the fingerprint identification module of being applied to mobile terminal on the market at present mainly divide into push type fingerprint module, scraping formula fingerprint module and touch fingerprint module according to the user mode, mainly divide into leading fingerprint module, rearmounted fingerprint module and side fingerprint module according to the position.

In some realizations, there is the fit clearance between module and the cell-phone casing, and the leakproofness is relatively poor, and the user is at the in-process that uses these two kinds of fingerprint modules, and inside steam and dust got into the cell-phone from the clearance of fingerprint identification module week circle easily, damaged inside device, subtracts short cell-phone life. In addition, the fingerprint module can be pressed, the rebound process of the fingerprint module after the fingerprint module is pressed touches the touch panel or the mobile phone shell, certain abnormal sound can be generated, the user experience is influenced to a great extent, and therefore the popularization of the mobile phone and the public praise of the brand are influenced.

The foregoing description is provided for general background information and is not admitted to be prior art.

SUMMERY OF THE UTILITY MODEL

An object of the present application is to provide a seal structure having excellent sealing performance.

The application provides a sealing structure, which is used for a pressing type fingerprint module and comprises an outer shell, a fingerprint module and a sealing washer; the fingerprint module comprises a fingerprint identification chip and a circuit substrate; the outer shell is provided with a through hole, and the through hole is used for embedding the fingerprint identification chip; an installation cavity is formed in the outer shell, the installation cavity is communicated with the through hole and accommodates the circuit substrate, and the first surface of the circuit substrate is stopped on the inner wall of the outer shell; the sealing washer is arranged on the inner wall of the outer shell, arranged around the fingerprint identification chip and detachably connected with the first surface of the circuit substrate.

Optionally, the fingerprint module further comprises a decorative outer ring; optionally, the decorative outer ring is arranged between the fingerprint identification chip and the through hole, and optionally, is also arranged between the circuit substrate and the inner wall of the outer shell; optionally, the sealing gasket is disposed between the decorative outer ring and the inner wall of the outer housing, optionally, is stopped at the decorative outer ring.

Optionally, the sealing gasket (preferably having a hardness of 90 °) is a foam gasket or a soft silicone gasket.

Optionally, the second surface of the circuit substrate is abutted with a key, optionally, the sealing gasket is matched with a resilience force provided by the key, and optionally, the fingerprint module can be ejected smoothly under the guidance of the through hole.

Optionally, the shell body is for dismantling the back lid, optionally, the fingerprint module is rearmounted fingerprint module.

Optionally, the outer shell is a capacitive touch panel, and optionally, the fingerprint module is a front depressible fingerprint module.

Optionally, the shell body is the center, optionally, but the fingerprint module is side push type fingerprint module.

The application also provides a mobile terminal, which comprises the sealing structure.

To sum up, this application seals fingerprint module week circle through using seal ring on mobile terminal, prevents that steam and dust from getting into mobile terminal inside from the clearance of fingerprint identification module week circle, damages inside device, subtracts short mobile terminal life. This scheme structure is reliable, and the leakproofness is good, and the cost is lower, and the equipment nature is good, and the after-sales repair of being convenient for, and because seal ring has buffering, noise reduction effect, can effectively eliminate the abnormal sound that the touching of fingerprint module and assembly surface produced to reinforcing user experience.

The foregoing description is only an overview of the technical solutions of the present application, and in order to make the technical means of the present application more clearly understood, the present application may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present application more clearly understood, the following preferred embodiments are described in detail with reference to the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic hardware structure diagram of a mobile terminal implementing various embodiments of the present application;

fig. 2 is a communication network system architecture diagram according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of an outer housing of a sealing structure according to a first embodiment of the present application.

Fig. 4 is a cross-sectional view of a seal structure provided in the first embodiment of the present application.

Fig. 5 is an assembled exploded view of a seal structure provided in the first embodiment of the present application.

Fig. 6 is a schematic structural diagram of an outer shell of a sealing structure provided in a second embodiment of the present application.

Fig. 7 is a cross-sectional view of a seal structure provided in a second embodiment of the present application.

Fig. 8 is an assembled exploded view of a seal structure provided in accordance with a second embodiment of the present application.

Fig. 9 is a cross-sectional view of a seal structure provided in a third embodiment of the present application.

The implementation, functional features and advantages of the objectives of the present application will be further explained with reference to the accompanying drawings. With the above figures, there are shown specific embodiments of the present application, which will be described in more detail below. These drawings and written description are not intended to limit the scope of the inventive concepts in any manner, but rather to illustrate the inventive concepts to those skilled in the art by reference to specific embodiments.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the recitation of an element by the phrase "comprising an … …" does not exclude the presence of additional like elements in the process, method, article, or apparatus that comprises the element, and further, where similarly-named elements, features, or elements in different embodiments of the disclosure may have the same meaning, or may have different meanings, that particular meaning should be determined by their interpretation in the embodiment or further by context with the embodiment.

It should be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope herein. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context. Also, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes" and/or "including," when used in this specification, specify the presence of stated features, steps, operations, elements, components, items, species, and/or groups, but do not preclude the presence, or addition of one or more other features, steps, operations, elements, components, species, and/or groups thereof. The terms "or," "and/or," "including at least one of the following," and the like, as used herein, are to be construed as inclusive or mean any one or any combination. For example, "includes at least one of: A. b, C "means" any of the following: a; b; c; a and B; a and C; b and C; a and B and C ", again for example," A, B or C "or" A, B and/or C "means" any of the following: a; b; c; a and B; a and C; b and C; a and B and C'. An exception to this definition will occur only when a combination of elements, functions, steps or operations are inherently mutually exclusive in some way.

The words "if", as used herein, may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.

It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for the convenience of description of the present application, and have no specific meaning in themselves. Thus, "module", "component" or "unit" may be used mixedly.

The mobile terminal may be implemented in various forms. For example, the mobile terminal described in the present application may include mobile terminals such as a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a Personal Digital Assistant (PDA), a Portable Media Player (PMP), a navigation device, a wearable device, a smart band, a pedometer, and the like, and fixed terminals such as a Digital TV, a desktop computer, and the like.

The following description will be given taking a mobile terminal as an example, and it will be understood by those skilled in the art that the configuration according to the embodiment of the present application can be applied to a fixed type terminal in addition to elements particularly used for mobile purposes.

Referring to fig. 1, which is a schematic diagram of a hardware structure of a mobile terminal for implementing various embodiments of the present application, the mobile terminal 100 may include: RF (Radio Frequency) unit 101, WiFi module 102, audio output unit 103, a/V (audio/video) input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, processor 110, and power supply 111. Those skilled in the art will appreciate that the mobile terminal architecture shown in fig. 1 is not intended to be limiting of mobile terminals, which may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.

The following describes each component of the mobile terminal in detail with reference to fig. 1:

the radio frequency unit 101 may be configured to receive and transmit signals during information transmission and reception or during a call, and specifically, receive downlink information of a base station and then process the downlink information to the processor 110; in addition, the uplink data is transmitted to the base station. Typically, radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 101 can also communicate with a network and other devices through wireless communication. The wireless communication may use any communication standard or protocol, including but not limited to GSM (Global System for Mobile communications), GPRS (General Packet Radio Service), CDMA2000(Code Division Multiple Access 2000), WCDMA (Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access), FDD-LTE (Frequency Division duplex Long Term Evolution), and TDD-LTE (Time Division duplex Long Term Evolution).

WiFi belongs to short-distance wireless transmission technology, and the mobile terminal can help a user to receive and send e-mails, browse webpages, access streaming media and the like through the WiFi module 102, and provides wireless broadband internet access for the user. Although fig. 1 shows the WiFi module 102, it is understood that it does not belong to the essential constitution of the mobile terminal, and may be omitted entirely as needed within the scope not changing the essence of the invention.

The audio output unit 103 may convert audio data received by the radio frequency unit 101 or the WiFi module 102 or stored in the memory 109 into an audio signal and output as sound when the mobile terminal 100 is in a call signal reception mode, a call mode, a recording mode, a voice recognition mode, a broadcast reception mode, or the like. Also, the audio output unit 103 may also provide audio output related to a specific function performed by the mobile terminal 100 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 103 may include a speaker, a buzzer, and the like.

The a/V input unit 104 is used to receive audio or video signals. The a/V input Unit 104 may include a Graphics Processing Unit (GPU) 1041 and a microphone 1042, the Graphics processor 1041 Processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 106. The image frames processed by the graphic processor 1041 may be stored in the memory 109 (or other storage medium) or transmitted via the radio frequency unit 101 or the WiFi module 102. The microphone 1042 may receive sounds (audio data) via the microphone 1042 in a phone call mode, a recording mode, a voice recognition mode, or the like, and may be capable of processing such sounds into audio data. The processed audio (voice) data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 101 in case of a phone call mode. The microphone 1042 may implement various types of noise cancellation (or suppression) algorithms to cancel (or suppress) noise or interference generated in the course of receiving and transmitting audio signals.

The mobile terminal 100 also includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that may optionally adjust the brightness of the display panel 1061 according to the brightness of ambient light, and a proximity sensor that may turn off the display panel 1061 and/or the backlight when the mobile terminal 100 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when stationary, and can be used for applications of recognizing the posture of a mobile phone (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 fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be configured on the mobile phone, further description is omitted here.

The display unit 106 is used to display information input by a user or information provided to the user. The Display unit 106 may include a Display panel 1061, and the Display panel 1061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 107 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the mobile terminal. Specifically, the user input unit 107 may include a touch panel 1071 and other input devices 1072. The touch panel 1071, also referred to as a touch screen, may collect a touch operation performed by a user on or near the touch panel 1071 (e.g., an operation performed by the user on or near the touch panel 1071 using a finger, a stylus, or any other suitable object or accessory), and drive a corresponding connection device according to a predetermined program. The touch panel 1071 may include two parts of a touch detection device and a touch controller. Optionally, the touch detection device detects a touch orientation of a user, detects a signal caused by a 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, sends the touch point coordinates to the processor 110, and can receive and execute commands sent by the processor 110. In addition, the touch panel 1071 may be implemented in various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 may include other input devices 1072. In particular, other input devices 1072 may include, but are not limited to, one or more of a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like, and are not limited to these specific examples.

Further, the touch panel 1071 may cover the display panel 1061, and when the touch panel 1071 detects a touch operation thereon or nearby, the touch panel 1071 transmits the touch operation to the processor 110 to determine the type of the touch event, and then the processor 110 provides a corresponding visual output on the display panel 1061 according to the type of the touch event. Although the touch panel 1071 and the display panel 1061 are shown in fig. 1 as two separate components to implement the input and output functions of the mobile terminal, in some embodiments, the touch panel 1071 and the display panel 1061 may be integrated to implement the input and output functions of the mobile terminal, and is not limited herein.

The interface unit 108 serves as an interface through which at least one external device is connected to the mobile terminal 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 108 may be used to receive input (e.g., data information, power, etc.) from external devices and transmit the received input to one or more elements within the mobile terminal 100 or may be used to transmit data between the mobile terminal 100 and external devices.

The memory 109 may be used to store software programs as well as various data. The memory 109 may mainly include a program storage area and a data storage area, and optionally, the program storage area may store an operating system, an application program (such as a sound playing function, an image playing function, and the like) required by at least one function, and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 109 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 110 is a control center of the mobile terminal, connects various parts of the entire mobile terminal using various interfaces and lines, and performs various functions of the mobile terminal and processes data by operating or executing software programs and/or modules stored in the memory 109 and calling data stored in the memory 109, thereby performing overall monitoring of the mobile terminal. Processor 110 may include one or more processing units; preferably, the processor 110 may integrate an application processor and a modem processor, optionally, the application processor mainly handles operating systems, user interfaces, application programs, etc., and the modem processor mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 110.

The mobile terminal 100 may further include a power supply 111 (e.g., a battery) for supplying power to various components, and preferably, the power supply 111 may be logically connected to the processor 110 via a power management system, so as to manage charging, discharging, and power consumption management functions via the power management system.

Although not shown in fig. 1, the mobile terminal 100 may further include a bluetooth module or the like, which is not described in detail herein.

In order to facilitate understanding of the embodiments of the present application, a communication network system on which the mobile terminal of the present application is based is described below.

Referring to fig. 2, fig. 2 is an architecture diagram of a communication Network system according to an embodiment of the present disclosure, where the communication Network system is an LTE system of a universal mobile telecommunications technology, and the LTE system includes a UE (User Equipment) 201, an E-UTRAN (Evolved UMTS Terrestrial Radio Access Network) 202, an EPC (Evolved Packet Core) 203, and an IP service 204 of an operator, which are in communication connection in sequence.

Specifically, the UE201 may be the terminal 100 described above, and is not described herein again.

The E-UTRAN202 includes eNodeB2021 and other eNodeBs 2022, among others. Alternatively, the eNodeB2021 may be connected with other enodebs 2022 through a backhaul (e.g., X2 interface), the eNodeB2021 is connected to the EPC203, and the eNodeB2021 may provide the UE201 access to the EPC 203.

The EPC203 may include an MME (Mobility Management Entity) 2031, an HSS (Home Subscriber Server) 2032, other MMEs 2033, an SGW (Serving gateway) 2034, a PGW (PDN gateway) 2035, and a PCRF (Policy and Charging Rules Function) 2036, and the like. Optionally, the MME2031 is a control node that handles signaling between the UE201 and the EPC203, providing bearer and connection management. HSS2032 is used to provide registers to manage functions such as home location register (not shown) and holds subscriber specific information about service characteristics, data rates, etc. All user data may be sent through SGW2034, PGW2035 may provide IP address assignment for UE201 and other functions, and PCRF2036 is a policy and charging control policy decision point for traffic data flow and IP bearer resources, which selects and provides available policy and charging control decisions for a policy and charging enforcement function (not shown).

The IP services 204 may include the internet, intranets, IMS (IP Multimedia Subsystem), or other IP services, among others.

Although the LTE system is described as an example, it should be understood by those skilled in the art that the present application is not limited to the LTE system, but may also be applied to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA, and future new network systems.

Based on the above mobile terminal hardware structure and communication network system, various embodiments of the present application are provided.

Fig. 3 is a schematic structural diagram of an outer housing of a sealing structure according to a first embodiment of the present application. Fig. 4 is a cross-sectional view of a seal structure provided in the first embodiment of the present application. Fig. 5 is an assembled exploded view of a seal structure provided in the first embodiment of the present application. As shown in fig. 3 to 5, the sealing structure 10 of the present application includes an outer housing 11, a fingerprint module 12 and a sealing gasket 13, and the sealing structure 10 of the present application is used for a depressible fingerprint module.

Optionally, the fingerprint module 12 includes a fingerprint identification chip 121 and a circuit substrate 123. The outer shell 11 is provided with a through hole 111, and the through hole 111 is used for embedding a fingerprint identification chip 121. The outer housing 11 is formed with a mounting cavity 112 therein, the mounting cavity 112 communicates with the through hole 111 and accommodates a circuit substrate 123, and a first surface 124 of the circuit substrate 123 is stopped at an inner wall of the outer housing 11. The sealing gasket 13 is disposed on the inner wall 115 of the outer housing 11, disposed around the fingerprint identification chip 121, and detachably connected to the upper side of the circuit substrate 123. The outer housing 11 may be, for example, a TP screen (Touch Panel; Touch Screen). The inner wall 115 of the outer housing 11 is opposite the outer surface 113 of the outer housing 11.

In one embodiment, the fingerprint identification chip 121 may have a circular shape, an oval shape, a rounded rectangle, etc., and the shape of the fingerprint identification chip 121 may be freely selected according to specific requirements. The through hole 111 is usually located in the upper half of the outer housing, and the position of the center of the upper left, upper right or upper half can be selected according to specific requirements.

This embodiment uses seal ring 13 to fill between fingerprint module 12 and shell body 11, prevents that steam and dust from getting into inside the mobile terminal from the clearance between 12 weeks of fingerprint module and the shell body 11, damages inside device, subtracts short mobile terminal life, and seal ring 13 still has antifriction collision's noise reduction effect as the buffer layer between fingerprint module 12 and the shell body 11.

In this embodiment, shell body 11 is for dismantling the back lid, and fingerprint module 12 is rearmounted fingerprint module. The outer housing 11, the fingerprint module 12 and the sealing gasket 13 are assembled in an assembled form.

In this application, seal ring 13 can be selected according to specific needs and makes and assemble earlier with shell body 11 or fingerprint module 12 simultaneous, assembles the equipment with another subassembly again. In one embodiment, as shown in fig. 3, the sealing gasket 13 can be manufactured and assembled as an additional component of the outer housing 11, and then assembled with the fingerprint module 12. In another embodiment, the sealing gasket 13 can be manufactured and assembled with the outer housing 11 as an additional component of the fingerprint module 12.

In one embodiment, the fingerprint recognition chip 121 includes a sensor and a coating on an outer surface of the sensor. The primary function of the coating is to protect the underlying delicate sensor from water, perspiration and scratching. Coatings are generally classified as paint, glass, sapphire, microcrystalline zirconium, and the like.

Optionally, the coating can generally be used on the rear fingerprint module, because the penetrating power of the fingerprint identification module is limited (generally at 200um), so the use of the coating by the rear fingerprint identification module is advantageous in terms of sensitivity. Glass, sapphire and microcrystalline zirconium belong to several similar materials, and the glass < sapphire < microcrystalline zirconium is seen from the performance index alone, and these three materials are generally used on leading fingerprint identification's module, specifically consider and select which kind of materials will use from a plurality of aspects such as product location, yields.

In one embodiment, the fingerprint module 12 may be protected by a coating made of paint having the same or similar color as the color of the outer housing 11, so as to ensure the consistency and the aesthetic property of the appearance of the mobile terminal.

In this embodiment, the fingerprint recognition module that can be selectively adopted according to the design process and the application technology of the mobile terminal includes an optical fingerprint recognition module (using optical equipment to capture images), a radio frequency fingerprint recognition module (using ultrasonic waves to capture images), and a semiconductor fingerprint recognition module (including a capacitive type or an inductive type, using a crystal fingerprint sensor).

According to the fingerprint module, the periphery of the fingerprint module is sealed by using the sealing foam or the soft silica gel through an ingenious structural design, on one hand, the foam and the soft silica gel are good in sealing performance, low in cost and convenient to assemble and maintain after sale; on the other hand, the fingerprint identification module can prolong cell-phone life to a certain extent under the sealed environment that bubble cotton and soft silica gel formed, and on the other hand, owing to bubble cotton and soft silica gel have buffering, noise reduction effect, can effectively eliminate the abnormal sound that the touching of fingerprint module and assembly surface produced to reinforcing user experience is favorable to the promotion of cell-phone wholeness price ratio and the popularization of company's cell-phone brand.

Fig. 6 is a schematic structural diagram of an outer shell of a sealing structure provided in a second embodiment of the present application. Fig. 7 is a cross-sectional view of a seal structure provided in a second embodiment of the present application. Fig. 8 is an assembled exploded view of a seal structure provided in accordance with a second embodiment of the present application. As shown in fig. 6-8, the sealing structure 20 of the present application includes an outer housing 21, a fingerprint module 22, and a sealing gasket 23.

Optionally, the outer casing 21 is opened with a through hole 211, and the through hole 211 is used for accommodating the fingerprint identification chip 221. The fingerprint module 22 includes a fingerprint identification chip 221. The sealing washer 23 is disposed around the fingerprint recognition chip 221 and is tightly connected to the inner wall of the outer housing 21.

Optionally, the fingerprint module 22 includes a fingerprint identification chip 221 and a circuit substrate 223. The outer shell 21 is provided with a through hole 211, and the through hole 211 is used for embedding the fingerprint identification chip 221. The outer housing 21 is formed with a mounting cavity 212 therein, the mounting cavity 212 communicates with the through hole 211 and accommodates a wiring substrate 223, and a first surface 224 of the wiring substrate 223 is stopped at an inner wall of the outer housing 21. The sealing washer 23 is disposed on the inner wall 215 of the outer casing 21, is disposed around the fingerprint identification chip 221, and is detachably connected to the upper side of the circuit substrate 223.

In this embodiment, the housing 21 is a capacitive touch panel, and the fingerprint module 22 is a front-mounted depressible fingerprint module. The outer housing 21, the fingerprint module 22 and the sealing gasket 23 are assembled in an assembled form.

In one embodiment, the fingerprint identification chip 221 may have a circular shape, an oval shape, a rounded rectangle shape, etc., and the shape of the fingerprint identification chip 221 may be freely selected according to specific requirements. The through hole 211 is usually located at the center of the bottom of the outer shell, and other positions can be selected according to requirements.

In one embodiment, the fingerprint module 22 further includes a cosmetic outer ring 225. The decorative outer ring 225 is disposed between the fingerprint recognition chip 221 and the through hole 211, and also disposed between the circuit substrate 223 and the inner wall of the outer case 21. The sealing gasket 23 is disposed between the decorative outer ring 225 and the inner wall 215 of the outer housing 21 and rests against the decorative outer ring 225. The first surface 224 of the wiring substrate 223 is stopped at the decorative outer ring 225. The inner wall 215 of the outer housing 21 is opposite the outer surface 213 of the outer housing 21. For most of the front and rear fingerprint identification modules, the decorative outer ring 225 is simply a chamfer or decorative ring for transition or structural needs, but in some fingerprint identification module designs, the decorative outer ring 225 has a specific function, such as acting as a signal booster or trigger. When the decorative outer ring 225 is used as a signal enhancer, the decorative outer ring is made of metal and is used for reducing signal interference and guaranteeing the recognition rate. When being used as a signal trigger, the decoration outer ring 225 is generally used for a high-voltage fingerprint identification module by sensing an electric activation fingerprint module of a living being, so that the power consumption of the fingerprint module can be saved.

In one embodiment, the sealing washer 23 may be made of foam or soft silicone.

The foam is a material formed by foaming plastic particles. The foam has the characteristics of elasticity, light weight, quick pressure-sensitive fixation, convenient use, free bending, ultrathin volume, reliable performance and the like. The bubble is cotton divide into the PU bubble, prevents that static bubble is cotton, and electrically conducts the bubble cotton, and the EPE bubble is cotton, prevents that static EPE bubble is cotton, and PORON bubble is cotton, and the CR bubble is cotton, and the EVA bubble is cotton, and the PE bubble of bridging is cotton, and the SBR bubble is cotton, and the EPDM bubble is cotton etc. can adopt the CR bubble cotton in this embodiment. The CR foam is mainly applied to the fields of communication, computers, household appliances, calculators, electronic toys, various electronic controllers and the like, is general special rubber, has the excellent properties of common rubber, and also has the excellent characteristics of flame resistance, oil resistance, chemical corrosion resistance and the like, so that the CR foam plays an important role in various synthetic rubbers. The main characteristics are as follows: 1. the sealing performance is excellent, and gas is prevented from being released and atomized; 2. the excellent compression deformation resistance, namely the elasticity has durability, and the long-term shockproof protection of accessories can be ensured; 3. the flame-retardant paint has flame retardance, does not contain harmful and toxic substances, does not remain or pollute equipment, and does not have corrosivity on metals; 4. can be used in a variety of temperature ranges. Ranges from minus 40 degrees Celsius to 90 degrees Celsius may be used; 5. the surface has excellent wettability, is easy to bond, is easy to manufacture and convenient to punch; 6. according to the formula of engineering polyurethane, the polyurethane has wide modulus range and deviation, and can meet more design flexibility requirements.

The soft silica gel is mainly applied to CPU chips, routers and computer fans. The soft silica gel has the characteristics of softness, high efficiency, high insulation, high flame resistance, high and low temperature resistance, high compression capacity, no oxidation, low oil yield and the like, is suitable for various severe application fields, has good heat-conducting property, is suitable for a material for filling a mechanism gap, and can achieve a sealing effect. The soft silica gel with high softness can also be used as a buffer material, and can also improve the thermal conductivity between the mobile terminal outer shell 21 and the fingerprint module 22, and improve the heat dissipation performance.

In one embodiment, the sealing washer 23 is a foam washer or a soft silicone washer. More specifically, the sealing washer 23 may have a predetermined hardness value, and the sealing washer 23 may be a foam washer or a soft silicone washer having a hardness of 90 °. The second surface 226 of the circuit substrate 223 is abutted with the key 227, and the sealing gasket 23 is matched with the resilience provided by the key 227 and smoothly ejects the fingerprint module 22 under the guidance of the through hole 211.

Fig. 9 is a cross-sectional view of a seal structure provided in a third embodiment of the present application. As shown in fig. 9, the sealing structure 30 of the present application includes an outer casing 31, a fingerprint module 32 and a sealing gasket 33, the fingerprint module 32 includes a fingerprint identification chip 321 and a circuit substrate 323, and a second surface 326 of the circuit substrate 323 abuts against a key 327.

Optionally, the outer shell 31 is opened with a through hole 311, and the through hole 311 is used for embedding the fingerprint identification chip 321. The sealing gasket 33 is disposed on the inner wall 11 of the outer casing 31, around the fingerprint recognition chip 321, and detachably connected to the first surface 324 of the circuit substrate 323.

In this embodiment, the outer housing 31 is a middle frame, and the fingerprint module 22 is a side-pressing type fingerprint module. The outer housing 31, the fingerprint module 32 and the sealing washer 33 are assembled in an assembled form.

The application also provides a mobile terminal using the sealing structure, and the mobile terminal can be, but is not limited to, an electronic device such as a mobile phone and a tablet computer.

To sum up, this application seals fingerprint module week circle through using seal ring on mobile terminal, prevents that steam and dust from getting into mobile terminal inside from the clearance of fingerprint identification module week circle, damages inside device, subtracts short mobile terminal life. This scheme structure is reliable, and the leakproofness is good, and the cost is lower, and the equipment nature is good, and the after-sales repair of being convenient for, and because seal ring has buffering, noise reduction effect, can effectively eliminate the abnormal sound that the touching of fingerprint module and assembly surface produced to reinforcing user experience.

In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment. The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features. The above description is only a preferred embodiment of the present application, and not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application, or which are directly or indirectly applied to other related technical fields, are included in the scope of the present application.

Claims (10)

1. A sealing structure is characterized by comprising an outer shell, a fingerprint module and a sealing gasket;

the fingerprint module comprises a fingerprint identification chip and a circuit substrate;

the outer shell is provided with a through hole, and the through hole is used for accommodating the fingerprint identification chip;

an installation cavity is formed in the outer shell, the installation cavity is communicated with the through hole and accommodates the circuit substrate, and the first surface of the circuit substrate is stopped on the inner wall of the outer shell; the sealing washer is arranged on the inner wall of the outer shell and arranged around the fingerprint identification chip.

2. The seal structure of claim 1, wherein the fingerprint module further comprises a decorative outer ring;

the decorative outer ring is arranged between the fingerprint identification chip and the through hole; and/or the presence of a gas in the gas,

the sealing washer is arranged between the decorative outer ring and the inner wall of the outer shell.

3. The seal structure of claim 2, wherein the decorative outer ring is also disposed between the circuit substrate and the inner wall of the outer housing.

4. The seal structure of claim 2, wherein the seal gasket is retained against the decorative outer ring.

5. The seal structure of claim 2, wherein the sealing gasket is a foam gasket or a soft silicone gasket.

6. The sealing structure according to any one of claims 1 to 5, wherein the second surface of the circuit substrate abuts a key, and the sealing gasket cooperates with a resilient force provided by the key.

7. The seal structure of any one of claims 1 to 5, wherein the outer housing is a removable rear cover and/or the fingerprint module is a rear fingerprint module.

8. The sealing structure according to any one of claims 1 to 5, wherein the outer housing is a capacitive touch panel, and/or the fingerprint module is a front press-able fingerprint module.

9. The sealing structure of any one of claims 1 to 5, wherein the outer housing is a center frame, and/or the fingerprint module is a push-on side fingerprint module.

10. A mobile terminal, characterized in that it comprises a sealing structure according to any of claims 1 to 9.

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