WO2018032871A1 - 指纹模组及具有其的移动终端 - Google Patents

指纹模组及具有其的移动终端 Download PDF

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Publication number
WO2018032871A1
WO2018032871A1 PCT/CN2017/088948 CN2017088948W WO2018032871A1 WO 2018032871 A1 WO2018032871 A1 WO 2018032871A1 CN 2017088948 W CN2017088948 W CN 2017088948W WO 2018032871 A1 WO2018032871 A1 WO 2018032871A1
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WO
WIPO (PCT)
Prior art keywords
circuit board
fingerprint module
module according
fingerprint
groove
Prior art date
Application number
PCT/CN2017/088948
Other languages
English (en)
French (fr)
Inventor
余卫斌
黄茂昭
杨茂
Original Assignee
广东欧珀移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201620890780.6U external-priority patent/CN206178866U/zh
Priority claimed from CN201610677965.3A external-priority patent/CN106203403B/zh
Application filed by 广东欧珀移动通信有限公司 filed Critical 广东欧珀移动通信有限公司
Priority to EP17840847.2A priority Critical patent/EP3457316B1/en
Publication of WO2018032871A1 publication Critical patent/WO2018032871A1/zh
Priority to US16/205,029 priority patent/US10657356B2/en
Priority to US16/439,589 priority patent/US10664681B2/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12—Fingerprints or palmprints
    • G06V40/13—Sensors therefor
    • G06V40/1329—Protecting the fingerprint sensor against damage caused by the finger
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/10—Image acquisition
    • G06V10/12—Details of acquisition arrangements; Constructional details thereof
    • G06V10/14—Optical characteristics of the device performing the acquisition or on the illumination arrangements
    • G06V10/147—Details of sensors, e.g. sensor lenses
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12—Fingerprints or palmprints
    • G06V40/13—Sensors therefor
    • G06V40/1306—Sensors therefor non-optical, e.g. ultrasonic or capacitive sensing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components

Definitions

  • the present invention relates to the field of electronic device technologies, and in particular, to a fingerprint module and a mobile terminal having the same.
  • the decorative ring of the fingerprint module of the mobile terminal is a metal piece, and the human hand generates static electricity during the friction process by touching the decorative ring or the decorative ring, and the static electricity generated by the decorative ring may adversely affect the fingerprint module.
  • the present invention aims to solve at least one of the technical problems in the related art to some extent.
  • the present invention provides a fingerprint module, which has the advantage of anti-static.
  • the invention also provides a mobile terminal, wherein the mobile terminal comprises the above fingerprint module.
  • a fingerprint module includes: a fingerprint recognition component; a decorative member having an embedded groove on a front side thereof, the fingerprint recognition component being embedded in the embedded slot; a circuit board assembly, the circuit One end of the board assembly protrudes into the embedding slot, an end of the circuit board assembly is attached to a rear end surface of the fingerprint identification component, a grounding terminal is disposed on the circuit board assembly, and a conductive member is disposed The conductive member is interposed between an end of the circuit board assembly and an inner bottom wall of the insertion groove to electrically connect the decorative member to the ground terminal through the circuit board assembly.
  • a mobile terminal includes the above fingerprint module.
  • FIG. 1 is a schematic structural diagram of a fingerprint module according to an embodiment of the present invention.
  • FIG. 2 is an exploded view of a fingerprint module in accordance with an embodiment of the present invention.
  • FIG. 3 is an exploded view of a fingerprint module in accordance with an embodiment of the present invention.
  • FIG. 4 is a cross-sectional view of a fingerprint module in accordance with an embodiment of the present invention.
  • Decorative member 2 embedded in groove 21, recessed portion 22, through hole 23, mounting groove 24, sealing groove 25,
  • Circuit board assembly 3 flexible circuit board 31, reinforcing board 32,
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” or “second” may include at least one of the features, either explicitly or implicitly.
  • the meaning of "a plurality” is at least two, such as two, three, etc., unless specifically defined otherwise.
  • the terms “installation”, “connected”, “connected”, “fixed” and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. Or in one piece; it may be a mechanical connection, or it may be an electrical connection or a communication with each other; it may be directly connected or indirectly connected through an intermediate medium, and may be an internal connection of two elements or an interaction relationship between two elements. Unless otherwise expressly defined. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.
  • a fingerprint module 100 in accordance with an embodiment of the present invention is described below with reference to FIGS.
  • a fingerprint module 100 includes a fingerprint recognition component, a decoration member 2, a circuit board assembly 3, and a conductive member 4.
  • the front side of the garnish 2 has an insertion groove 21, and the fingerprint recognition component is embedded in the insertion groove 21, whereby the appearance of the fingerprint recognition component can be made more beautiful.
  • One end of the circuit board assembly 3 extends into the insertion slot 21, and the end of the circuit board assembly 3 is attached to the rear end surface of the fingerprint recognition component to ensure the tight connection of the fingerprint recognition component to the circuit board assembly 3, on the circuit board assembly 3.
  • a grounding terminal is provided, and the conductive member 4 is interposed between the end of the circuit board assembly 3 and the inner bottom wall of the insertion groove 21 to electrically connect the decorative member 2 to the ground terminal through the circuit board assembly 3.
  • the grounding of the decorative component 2 can be achieved, and the static phenomenon of the decorative component 2 can be avoided, thereby avoiding adverse effects on the fingerprint module 100 and ensuring the fingerprint.
  • the reliability of the operation of the module 100 is the reason for the design of the module 100.
  • the fingerprint module 100 extends through one end of the circuit board assembly 3 into the embedding slot 21, and provides a grounding terminal on the circuit board assembly 3, and at the end of the circuit board assembly 3 and the embedding slot A conductive member 4 is disposed between the inner bottom walls of the 21 to electrically connect the decorative member 2 to the ground terminal through the circuit board assembly 3, and the grounding of the decorative member 2 can be achieved. Therefore, the phenomenon that static electricity appears in the decorative member 2 can be avoided to avoid adverse effects on the fingerprint module 100, thereby ensuring the reliability of the operation of the fingerprint module 100.
  • the inner bottom wall of the insertion groove 21 is provided with a mounting groove 24, and the conductive member 4 is embedded in the mounting groove 24.
  • the mounting groove 24 can limit the conductive member 4 to prevent the conductive member 4 from moving on the bottom wall of the insertion groove 21, thereby ensuring the conductive member 4 and the inner bottom wall of the insertion groove 21 and the conductive member 4 and the circuit board. The reliability of the connection between components 3.
  • the conductive member 4 is a conductive foam.
  • Conductive foam is a conductive cloth wrapped on a flame-retardant sponge. After a series of treatments, it has good surface conductivity and can be easily fixed on the shielding device with an adhesive tape.
  • the use of conductive foam is low in cost, simple in processing, and can ensure the reliability of grounding.
  • the circuit board assembly 3 is assembled with the decorative member 2, the conductive foam between the circuit board assembly 3 and the decorative member 2 has a certain amount of compression to ensure the conductive foam and the decorative member 2 and the conductive foam and The reliability connection between the circuit board assemblies 3 ensures the good grounding of the decorative member 2 and prevents the static electricity of the decorative member 2 from adversely affecting the fingerprint module 100.
  • the circuit board assembly 3 includes a flexible circuit board 31 and a stiffener 32.
  • One end of the flexible circuit board 31 extends into the insertion groove 21, and the end of the flexible circuit board 31 is attached to the rear end surface of the fingerprint recognition component (the rear end shown in FIG. 4), thereby ensuring the fingerprint recognition component and The tight connection between the flexible circuit boards 31 ensures the reliability of the operation of the fingerprint module 100.
  • the grounding terminal is disposed on the flexible circuit board 31.
  • the reinforcing board 32 is attached to the flexible circuit board 31 and electrically connected to the flexible circuit board 31, and the reinforcing board 32 is located on a side of the flexible circuit board 31 away from the fingerprint identification component.
  • the conductive member 4 is electrically connected to the reinforcing plate 32 (i.e., the reinforcing plate 32 is a conductive member).
  • the reinforcing plate 32 can enhance the structural strength of the flexible circuit board 31, prevent the flexible circuit board 31 from being bent, and the like, thereby ensuring the reliability of the operation of the flexible circuit board 31.
  • the reinforcing board 32 and the flexible circuit board 31 can be electrically connected.
  • the conductive member 4 is electrically connected to the reinforcing plate 32 to realize electrical connection between the decorative member 2 and the flexible circuit board 31, so that the electrical connection between the decorative member 2 and the grounding terminal through the flexible circuit board 31 can be realized, and thus the decorative member 2 can be grounded. The effect is to avoid the adverse effect of the static electricity of the decorative piece 2 on the fingerprint module 100.
  • the outer peripheral wall of the garnish 2 is sheathed with a sealing member 7.
  • a sealing member 7 When the fingerprint module 100 is mounted on a mobile terminal such as a mobile phone, sweat or other liquid on the hand can be prevented from intruding into the interior of the mobile terminal to damage components inside the mobile terminal, thereby ensuring the reliability of the operation of the mobile terminal.
  • the outer peripheral wall of the garnish 2 is provided with a sealing groove 25, and the sealing member 7 is embedded in the sealing groove 25.
  • the fingerprint module 100 further includes a cover 5 disposed in the embedding slot 21 and located on the front side of the fingerprint recognition component (as shown in FIG. 4 The front side of the show).
  • the cover 5 can identify the fingerprint
  • the component and circuit board assembly 3 provide further protection.
  • the cover 5 can also increase the aesthetics of the fingerprint module 100.
  • the cover plate 5 can be a glass cover plate 5 or a ceramic cover plate 5, and the glass cover plate 5 or the ceramic cover plate 5 has high glossiness, which can improve the aesthetic appearance of the fingerprint module 100.
  • the fingerprint recognition component includes an encapsulation layer 1 having a first mating portion on a rear wall surface (the rear side as shown in FIG. 4), and the garnish 2 has an embedding groove 21, an encapsulation layer 1 is embedded in the insertion groove 21, and a second fitting portion is disposed in the insertion groove 21, and the first fitting and the second fitting are fitted to each other. Therefore, when the encapsulation layer 1 is embedded in the embedding groove 21, and the first mating portion and the second mating portion are fitted to each other, the front and rear directions of the encapsulation layer 1 and the garnish 2 can be reduced (as shown in FIG. 4). The thickness of the front and rear direction is shown, so that the thickness of the fingerprint module 100 can be reduced, and the ultra-thin design of the mobile terminal can be adapted to meet the user's use requirements.
  • the first engaging portion is a boss portion 11 formed on the rear wall surface of the encapsulating layer 1 (the rear side as shown in FIG. 4), and the second mating portion is formed in the embedding groove 21.
  • the recess 22 has at least a portion of the boss 11 located within the recess 22.
  • the rear wall surface of the encapsulation layer 1 has a first mating portion, the first mating portion is formed as a boss portion 11, the garnish 2 has an embedding groove 21, and the encapsulation layer 1 is provided at
  • the bottom wall of the insertion groove 21 is provided with a second fitting portion, and the second fitting portion is formed as a recess portion 22, and the boss portion 11 is located in the recess portion 22, and the side wall surface of the boss portion 11 and the encapsulating layer 1 are
  • the rear wall surface forms a first step surface, and the bottom wall of the insertion groove 21 and the side wall of the recess portion 22 form a second step surface, and the first step surface and the second step surface are engaged, whereby the encapsulation layer 1 can be defined in the rearward direction
  • the displacement ensures the reliability of the operation of the fingerprint module 100.
  • the thickness of the convex portion 11 in the front-rear direction is a, the overall thickness of the fingerprint module 100 can be lowered by a
  • the convex portion 11 is one.
  • the structure and processing technology of the encapsulation layer 1 can be simplified, the production cycle can be saved, and the production cost can be reduced.
  • the rear wall surface of the encapsulation layer 1 is provided with a convex portion 11 which is one and located at the center of the encapsulation layer 1.
  • the encapsulation layer 1 When the encapsulation layer 1 is processed, it can be processed first.
  • the encapsulating layer 1 having the same thickness is then processed in the circumferential direction of the encapsulating layer 1 by a step.
  • the fingerprint module 100 in accordance with one embodiment of the present invention is described below with reference to FIGS. 1 through 4, which are intended to be illustrative of the present invention and are not to be construed as limiting the invention.
  • a fingerprint module 100 includes a fingerprint recognition component, a decoration member 2, a circuit board assembly 3, a conductive member 4, and a cover 5.
  • the fingerprint identification component includes an encapsulation layer 1 on which a rear wall surface of the encapsulation layer 1 is provided. a mating portion, the first mating portion is a protrusion 11 formed on a rear wall surface of the encapsulation layer 1.
  • the protrusion portion 11 is one and located at an intermediate portion of the encapsulation layer 1.
  • the encapsulation layer may be along the encapsulation layer A step is processed in the circumferential direction of 1, and the encapsulating layer 1 and the rear wall surface and the side wall surface of the boss portion 11 form a first stepped surface.
  • the garnish 2 has an embedding groove 21, and the encapsulation layer 1 is disposed in the embedding groove 21.
  • the second fitting portion is formed in the embedding groove 21, and the second engaging portion is formed in the embedding groove 21.
  • the recessed portion 22 is located in the recessed portion 22.
  • the bottom wall of the insertion groove 21 and the side wall of the recess 22 form a second stepped surface, and the first stepped surface is engaged with the second stepped surface.
  • the thickness of the convex portion 11 in the front-rear direction is a
  • the thickness of the decorative member 2 after being assembled with the encapsulating layer 1 can be reduced by a in the front-rear direction.
  • the thickness of the decorative member 2 after being assembled with the encapsulating layer 1 can be reduced by 0.2 mm in the front-rear direction.
  • the circuit board assembly 3 includes a flexible circuit board 31 and a reinforcing plate 32.
  • the bottom wall of the recessed portion 22 of the decorative member 2 is provided with a through hole 23 through which one end of the flexible circuit board 31 passes.
  • the hole 23 projects into the recessed portion 22, and the end portion of the flexible circuit board 31 that projects into the recessed portion 22 is fitted to the free end end surface of the boss portion 11 (i.e., the rear wall surface of the boss portion 11).
  • the encapsulation layer 1 can protect the flexible circuit board 31, prevent the impurities in the air from corroding the circuit and cause electrical performance degradation, and on the other hand, ensure the fingerprint recognition component in the encapsulation layer 1 and The tight connection of the flexible circuit board 31 ensures the reliability of the operation of the fingerprint module 100.
  • the reinforcing plate 32 may be a reinforcing steel plate, and the reinforcing plate 32 is attached to the side of the flexible circuit board 31 away from the package layer 1 and electrically connected to the flexible circuit board 31, that is, the reinforcing plate 32 is attached to the flexible circuit board 31. On the back side wall. The reinforcing plate 32 can strengthen the structural strength of the flexible circuit board 31 and prevent the flexible circuit board 31 from being bent and damaged.
  • the decorative member 2 is a conductive metal member, and the other end of the flexible circuit board 31 (the one end not extending into the recess portion 22) is provided with a grounding terminal, the reinforcing plate 32 and the recessed portion 22
  • a conductive member 4 is disposed between the inner bottom walls, and the decorative member 2 is electrically connected to the grounding terminal through the conductive member 4, the reinforcing plate 32 and the flexible circuit board 31, thereby achieving the purpose of grounding the decorative member 2, and preventing the static electricity of the decorative member 2 Badly affecting the fingerprint module 100.
  • the conductive member 4 is a conductive foam, and the cross section of the conductive foam is rectangular.
  • the bottom wall of the recess 22 is provided with a mounting groove 24 having a rectangular cross section, and the conductive foam is embedded in the mounting groove 24. Thereby, the movement of the conductive foam can be prevented, thereby ensuring the reliability of the electrical connection between the garnish 2 and the flexible circuit board 31.
  • the cover plate 5 is a cover glass 5 which is disposed in the insertion groove 21 and located on the front side of the encapsulation layer 1, and the cover plate 5 can block the front side opening of the insertion groove 21.
  • the cover plate 5 not only further protects the circuit board assembly 3, but also increases the aesthetics of the fingerprint module 100.
  • the outer peripheral wall of the decorative member 2 is sleeved with a sealing member 7, and the sealing member 7 is embedded on the outer peripheral wall of the decorative member 2.
  • the sealing groove 25 when the fingerprint module 100 is mounted on a mobile terminal such as a mobile phone, the sweat or other liquid on the hand can be prevented from intruding into the mobile terminal and damaging the internal components of the mobile terminal, thereby ensuring the reliability of the mobile terminal. .
  • the fingerprint module 100 further includes a fingerprint pressing plate 6 , and the fingerprint pressing plate 6 is disposed on the rear side of the decorative member 2 .
  • the cover 5, the encapsulation layer 1, the flexible circuit board 31 and the reinforcing plate 32 may be processed together, and then the conductive foam is pasted into the mounting groove 24 of the decorative member 2,
  • the cover plate 5, the encapsulation layer 1, the flexible circuit board 31, and the reinforcing plate 32 which are processed together are assembled together with the processed decorative member 2 by a peripheral dispensing and held.
  • the conductive foam between the reinforcing plate 32 and the decorative member 2 passes a certain amount of compression, and after the glue is pressed for a certain time, the glue is solidified to ensure good grounding between the two.
  • the mobile terminal according to the embodiment of the invention includes the fingerprint module 100 described above.
  • a mobile terminal by inserting one end of the circuit board assembly 3 into the insertion groove 21, and providing a ground terminal on the circuit board assembly 3, and at the end of the circuit board assembly 3 and the groove 21 A conductive member 4 is disposed between the inner bottom walls to electrically connect the decorative member 2 to the ground terminal through the circuit board assembly 3, so that the grounding of the decorative member 2 can be achieved, thereby preventing the static phenomenon of the decorative member 2 from being avoided.
  • the 100 has a bad influence, thereby ensuring the reliability of the operation of the fingerprint module 100 and ensuring the reliability of the operation of the mobile terminal.

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Abstract

一种指纹模组（100）及具有其的移动终端，其中，指纹模组（100）包括：指纹识别组件；装饰件（2），装饰件（2）前侧具有嵌入槽（21），指纹识别组件嵌设在嵌入槽（21）内；电路板组件（3），电路板组件（3）的一端伸入至嵌入槽（21）内，电路板组件（3）的端部贴设在指纹识别组件的后端面上，电路板组件（3）的另一端具有接地端子；和导电件（4），导电件（4）夹设在电路板组件（3）的端部和嵌入槽（21）的内底壁之间以使装饰件（2）和电路板组件（3）电连接。

Description

指纹模组及具有其的移动终端 技术领域
本发明涉及电子设备技术领域，尤其是涉及一种指纹模组及具有其的移动终端。
背景技术
相关技术中，移动终端的指纹模组的装饰圈为金属件，人手在触碰装饰圈或装饰圈在摩擦过程中会产生静电，装饰圈产生的静电会对指纹模组产生不良的影响。
发明内容
本发明旨在至少在一定程度上解决相关技术中的技术问题之一。为此，本发明提出一种指纹模组，所述指纹模组具有防静电的优点。
本发明还提出一种移动终端，所述移动终端包括上述指纹模组。
根据本发明实施例的指纹模组，包括：指纹识别组件；装饰件，所述装饰件前侧具有嵌入槽，所述指纹识别组件嵌设在所述嵌入槽内；电路板组件，所述电路板组件的一端伸入至所述嵌入槽内，所述电路板组件的端部贴设在所述指纹识别组件的后端面上，所述电路板组件上设有接地端子；和导电件，所述导电件夹设在所述电路板组件的端部和所述嵌入槽的内底壁之间以使所述装饰件通过所述电路板组件与所述接地端子电连接。
根据本发明实施例的移动终端，包括上述指纹模组。
附图说明
图1是根据本发明实施例的指纹模组的结构示意图；
图2是根据本发明实施例的指纹模组的爆炸图；
图3是根据本发明实施例的指纹模组的爆炸图；
图4是根据本发明实施例的指纹模组的剖面图。
附图标记：
指纹模组100，
封装层1，凸起部11，
装饰件2，嵌入槽21，凹陷部22，过孔23，安装槽24，密封槽25，
电路板组件3，柔性电路板31，补强板32，
导电件4，盖板5，指纹压板6，密封件7。
具体实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出。下面通过参考附图描述的实施例是示例性的，旨在用于解释本发明，而不能理解为对本发明的限制。
在本发明的描述中，需要理解的是，术语“中心”、“横向”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“顶”、“底”、“内”、“外”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本发明的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接或彼此可通讯；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
下面参考图1-图4描述根据本发明实施例的指纹模组100。
如图1-图4所示，根据本发明实施例的指纹模组100，包括：指纹识别组件、装饰件2、电路板组件3和导电件4。
具体而言，装饰件2前侧具有嵌入槽21，指纹识别组件嵌设在嵌入槽21内，由此可以使得指纹识别组件的外观更加精美。电路板组件3的一端伸入至嵌入槽21内，电路板组件3的端部贴设在指纹识别组件的后端面上以保证指纹识别组件与电路板组件3的紧密连接，电路板组件3上设有接地端子，导电件4夹设在电路板组件3的端部和嵌入槽21的内底壁之间以使装饰件2通过电路板组件3与接地端子电连接。当装饰件2通过电路板组件3与接地端子电连接之后，可以实现装饰件2的接地的目的，可以避免装饰件2出现静电的现象，从而避免对指纹模组100产生不良的影响，保证指纹模组100工作的可靠性。
根据本发明实施例的指纹模组100，通过将电路板组件3的一端伸入至嵌入槽21内，并在电路板组件3上设置接地端子，且在电路板组件3的端部和嵌入槽21的内底壁之间设置导电件4以使装饰件2通过电路板组件3与接地端子电连接，可以实现装饰件2接地的目 的，从而可以避免装饰件2出现静电的现象以避免对指纹模组100产生不良的影响，进而保证指纹模组100工作的可靠性。
在本发明的一些实施例中，如图2和图4所示，嵌入槽21的内底壁上设有安装槽24，导电件4嵌设在安装槽24内。安装槽24可以对导电件4起到限位的作用，防止导电件4在嵌入槽21的底壁上移动，从而可以保证导电件4与嵌入槽21的内底壁以及导电件4与电路板组件3之间连接的可靠性。
具体地，导电件4为导电泡棉。导电泡棉为在阻燃海绵上包裹导电布,经过一系列的处理后，使其具有良好的表面导电性，可以很容易用胶粘带固定在需屏蔽器件上。采用导电泡棉成本低廉，加工工艺简单，同时可以保证接地的可靠性。当电路板组件3与装饰件2装配好后，位于电路板组件3和装饰件2之间的导电泡棉具有一定的压缩量，可以保证导电泡棉和装饰件2之间以及导电泡棉和电路板组件3之间的可靠性连接，从而保证装饰件2良好的接地，防止装饰件2静电对指纹模组100产生不良影响。
在本发明的一些实施例中，如图2-图4所示，电路板组件3包括柔性电路板31和补强板32。柔性电路板31的一端伸入至嵌入槽21内，且柔性电路板31的端部与指纹识别组件的后端面(如图4所示的后端)贴合，由此可以保证指纹识别组件与柔性电路板31之间的紧密连接，保证指纹模组100工作的可靠性。接地端子设在柔性电路板31上，补强板32贴合在柔性电路板31上且与柔性电路板31电连接，且补强板32位于柔性电路板31的远离指纹识别组件的一侧，导电件4与补强板32电连接(即补强板32为可导电部件)。补强板32可以增强柔性电路板31的结构强度，防止柔性电路板31发生弯折等，从而保证柔性电路板31工作的可靠性，同时，补强板32与柔性电路板31可以电连接，导电件4与补强板32电连接以实现装饰件2与柔性电路板31的电连接，从而可以实现装饰件2通过柔性电路板31与接地端子的电连接，进而可以实现装饰件2接地的效果，以避免装饰件2静电对指纹模组100的不良影响。
在本发明的一些实施例中，如图4所示，装饰件2的外周壁上套有密封件7。当指纹模组100安装到手机等移动终端上时，可以避免手上的汗水或其它液体侵入移动终端内部而损坏移动终端内部的零部件，从而保证移动终端工作的可靠性。
进一步地，如图4所示，装饰件2的外周壁上设有密封槽25，密封件7嵌设在密封槽25内。从而可以防止密封件7沿装饰件2的轴向方向(如图4所示的前后方向)蹿动，保证密封的可靠性。
在本发明的一些实施例中，如图2-图4所示，指纹模组100还包括盖板5，盖板5设在嵌入槽21内且位于指纹识别组件的前侧(如图4所示的前侧)。一方面盖板5可以对指纹识 别组件和电路板组件3起到进一步的保护作用，另一方面盖板5还可以增加指纹模组100的美观性。
盖板5可以为玻璃盖板5或陶瓷盖板5，玻璃盖板5或陶瓷盖板5的光泽度高，可以提高指纹模组100的美观性。
在本发明的一些实施例中，指纹识别组件包括封装层1，封装层1的后壁面(如图4所示的后侧)上具有第一配合部，装饰件2具有嵌入槽21，封装层1嵌设在嵌入槽21内，嵌入槽21内设有第二配合部，第一配合和第二配合彼此嵌合。由此，当封装层1嵌设在嵌入槽21内，且第一配合部和第二配合部彼此嵌合时，可以减小封装层1和装饰件2配合后沿前后方向(如图4所示的前后方向)的厚度，从而可以减小指纹模组100的厚度，进而可以适应移动终端整机超薄的设计，满足用户的使用需求。
如图2-图4所示，第一配合部为形成在封装层1的后壁面(如图4所示的后方)上的凸起部11，第二配合部为形成在嵌入槽21内的凹陷部22，至少部分凸起部11位于凹陷部22内。由此，在装配封装层1和装饰件2时，将凸起部11的至少部分嵌入至凹陷部22内，可以减小装饰件2与封装层1装配后沿前后方向的厚度，从而可以减小指纹模组100的厚度，进而可以适应移动终端整机超薄的设计，满足用户的使用需求。
例如，在图3和图4所示的示例中，封装层1的后壁面具有第一配合部，第一配合部形成为凸起部11，装饰件2具有嵌入槽21，封装层1设在嵌入槽21内，嵌入槽21的底壁设有第二配合部，第二配合部形成为凹陷部22，凸起部11位于凹陷部22内，凸起部11的侧壁面与封装层1的后壁面形成第一台阶面，嵌入槽21的底壁和凹陷部22的侧壁形成第二台阶面，第一台阶面和第二台阶面卡合，由此可以限定封装层1在向后方向上的位移，从而保证指纹模组100工作的可靠性。且当凸起部11沿前后方向的厚度为a时，可以将指纹模组100的整体厚度降低a。
具体地，如图3所示，凸起部11为一个。由此，可以简化封装层1的结构及加工工艺，节约生产周期，降低生产成本。例如，在图3所示的示例中，封装层1的后壁面上设有凸起部11，凸起部11为一个且位于封装层1的中心部位，当加工封装层1时，可以先加工厚度一致的封装层1，然后在封装层1的后壁面沿其周向方向加工一圈台阶。
下面参考图1-图4描述根据本发明一个具体实施例的指纹模组100，下述描述只是示例性的，旨在用于解释本发明，而不能理解为对本发明的限制。
如图1-图4所示，根据本发明实施例的指纹模组100，包括指纹识别组件、装饰件2、电路板组件3、导电件4和盖板5。
具体地，如图3和图4所示，指纹识别组件包括封装层1，封装层1的后壁面上设有第 一配合部，第一配合部为形成在封装层1后壁面上的凸起部11，凸起部11为一个且位于封装层1的中间部位，当加工凸起部11时，可以沿封装层1的周向方向加工一圈台阶，封装层1和后壁面和凸起部11的侧壁面形成第一台阶面。如图2和图4所示，装饰件2具有嵌入槽21，封装层1设在嵌入槽21内，嵌入槽21内设有第二配合部，第二配合部为形成在嵌入槽21内的凹陷部22，凸起部11位于凹陷部22内。嵌入槽21的底壁和凹陷部22的侧壁形成第二台阶面，第一台阶面与第二台阶面卡合。当装饰件2与封装层1装配完成后，可以减小装饰件2和封装层1在前后方向的厚度，从而减小指纹模组100的厚度，进而可以适应移动终端整机超薄的要求。
需要说明的是，当凸起部11沿前后方向的厚度为a时，在前后方向上，装饰件2与封装层1装配后的厚度可减小a。例如，当凸起部11沿前后方向的厚度为0.2mm时，在前后方向上，装饰件2与封装层1装配后的厚度可减小0.2mm。
如图2-图4所示，电路板组件3包括柔性电路板31和补强板32，装饰件2的凹陷部22的底壁上设有过孔23，柔性电路板31的一端穿过过孔23伸入至凹陷部22内，伸入凹陷部22内的柔性电路板31的端部与凸起部11的自由端端面(即凸起部11的后壁面)贴合。一方面，封装层1可以对柔性电路板31起到保护的作用，可以防止空气中的杂质对电路的腐蚀而造成电气性能下降，另一方面，还可以保证封装层1内的指纹识别组件与柔性电路板31的紧密连接，保证指纹模组100工作的可靠性。补强板32可以为补强钢板，补强板32贴合在柔性电路板31的远离封装层1的一侧且与柔性电路板31电连接，即补强板32贴合在柔性电路板31的后侧壁上。补强板32可以加强柔性电路板31的结构强度，防止柔性电路板31弯折而损坏。
另外，如图2-图4所示，装饰件2为导电金属件，柔性电路板31的另一端(未伸入凹陷部22内的一端)设有接地端子，补强板32和凹陷部22的内底壁之间设有导电件4，装饰件2通过导电件4、补强板32和柔性电路板31与接地端子实现电连接，从而实现装饰件2接地的目的，防止装饰件2静电对指纹模组100产生不良的影响。其中，导电件4为导电泡棉，导电泡棉的横截面的形状为长方形，凹陷部22的底壁上设有横截面为长方形的安装槽24，导电泡棉嵌设在安装槽24内，由此，可以防止导电泡棉移动，从而保证装饰件2与柔性电路板31之间电连接的可靠性。
如图4所示，盖板5为玻璃盖板5，盖板5设在嵌入槽21内且位于封装层1的前侧，盖板5可以封堵嵌入槽21的前侧开口。盖板5不仅可以对电路板组件3起到进一步的保护作用，还可以增加指纹模组100的美观性。
如图4所示，装饰件2的外周壁上套设有密封件7，密封件7嵌设在装饰件2外周壁上 的密封槽25内，当指纹模组100安装到手机等移动终端上时，可以避免手上的汗水或其它液体侵入移动终端内部而损坏移动终端内部的零部件，从而保证移动终端工作的可靠性。
如图2-图4所示，指纹模组100还包括指纹压板6，指纹压板6设在装饰件2的后侧。
在加工指纹模组100的过程中，可以将盖板5、封装层1、柔性电路板31和补强板32一起加工好，然后将导电泡棉粘贴到装饰件2的安装槽24里面，将一起加工好的盖板5、封装层1、柔性电路板31和补强板32通过周边一圈点胶与加工好的装饰件2装配到一起并保压。同时，通过点胶装配，在补强板32与装饰件2之间的导电泡棉通过一定的压缩量，点胶保压一定时间后，胶水固化后保证二者之间的良好接地。
根据本发明实施例的移动终端，包括上述指纹模组100。
根据本发明实施例的移动终端，通过将电路板组件3的一端伸入至嵌入槽21内，并在电路板组件3上设置接地端子，且在电路板组件3的端部和嵌入槽21的内底壁之间设置导电件4以使装饰件2通过电路板组件3与接地端子电连接，可以实现装饰件2接地的目的，从而可以避免装饰件2出现静电的现象以避免对指纹模组100产生不良的影响，进而保证指纹模组100工作的可靠性，保证移动终端工作的可靠性。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
尽管上面已经示出和描述了本发明的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本发明的限制，本领域的普通技术人员在本发明的范围内可以对上述实施例进行变化、修改、替换和变型。

Claims (20)

  1. 一种指纹模组，其特征在于，包括：
    指纹识别组件；
    装饰件，所述装饰件前侧具有嵌入槽，所述指纹识别组件嵌设在所述嵌入槽内；
    电路板组件，所述电路板组件的一端伸入至所述嵌入槽内，所述电路板组件的端部贴设在所述指纹识别组件的后端面上，所述电路板组件上设有接地端子；和
    导电件，所述导电件夹设在所述电路板组件的端部和所述嵌入槽的内底壁之间以使所述装饰件通过所述电路板组件与所述接地端子电连接。
  2. 根据权利要求1所述的指纹模组，其特征在于，所述嵌入槽的内底壁上设有安装槽，所述导电件嵌设在所述安装槽内。
  3. 根据权利要求1所述的指纹模组，其特征在于，所述导电件为导电泡棉。
  4. 根据权利要求3所述的指纹模组，其特征在于，所述导电泡棉的横截面的形状为长方形，所述嵌入槽的底壁上设有横截面为长方形的安装槽，所述导电泡棉嵌设在所述安装槽内。
  5. 根据权利要求1-4中任一项所述的指纹模组，其特征在于，所述电路板组件包括：
    柔性电路板，所述柔性电路板的一端伸入至所述嵌入槽内，且所述柔性电路板的端部与所述指纹识别组件的后端面贴合，所述接地端子设在所述柔性电路板上；和
    补强板，所述补强板贴合在所述柔性电路板上且与所述柔性电路板电连接，且所述补强板位于所述柔性电路板的远离所述指纹识别组件的一侧，所述导电件与所述补强板电连接。
  6. 根据权利要求5所述的指纹模组，其特征在于，所述嵌入槽的底壁上设有贯穿的过孔，所述电路板组件的一端穿过所述过孔伸入至所述嵌入槽内。
  7. 根据权利要求5所述的指纹模组，其特征在于，所述补强板的侧边上设有与所述柔性电路板配合的凹槽。
  8. 根据权利要求7所述的指纹模组，其特征在于，所述凹槽的横截面为矩形。
  9. 根据权利要求5所述的指纹模组，其特征在于，所述补强板为导电部件。
  10. 根据权利要求1-9中任一项所述的指纹模组，其特征在于，所述装饰件的外周壁上套有密封件。
  11. 根据权利要求10所述的指纹模组，其特征在于，所述装饰件的外周壁上设有密封槽，所述密封件嵌设在所述密封槽内。
  12. 根据权利要求1-11中任一项所述的指纹模组，其特征在于，还包括：
    盖板，所述盖板嵌设在所述嵌入槽内且位于所述指纹识别组件前侧。
  13. 根据权利要求12所述的指纹模组，其特征在于，所述盖板为玻璃盖板或陶瓷盖板。
  14. 根据权利要求1-13中任一项所述的指纹模组，其特征在于，所述装饰件为导电装饰件。
  15. 根据权利要求1-14中任一项所述的指纹模组，其特征在于，所述嵌入槽的横截面为长圆形，所述电路板组件的横截面为与所述嵌入槽的横截面相同的长圆形。
  16. 根据权利要求5所述的指纹模组，其特征在于，还包括指纹压板，所述指纹压板设在所述装饰件的后侧。
  17. 根据权利要求16中任一项所述的指纹模组，其特征在于，所述指纹压板的前侧设有嵌入凹槽，所述装饰件嵌设在所述嵌入凹槽内。
  18. 根据权利要求17中任一项所述的指纹模组，其特征在于，所述嵌入凹槽的底壁上设有与所述过孔相对的通孔，所述电路板组件的一端穿过所述通孔伸入至所述嵌入凹槽内。
  19. 一种移动终端，其特征在于，包括根据权利要求1-18中任一项所述的指纹模组。
  20. 根据权利要求19所述的移动终端，其特征在于，所述移动终端为手机、平板电脑或笔记本电脑。
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