WO2021139442A1 - 可蜂鸣智能卡 - Google Patents

可蜂鸣智能卡 Download PDF

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Publication number
WO2021139442A1
WO2021139442A1 PCT/CN2020/132393 CN2020132393W WO2021139442A1 WO 2021139442 A1 WO2021139442 A1 WO 2021139442A1 CN 2020132393 W CN2020132393 W CN 2020132393W WO 2021139442 A1 WO2021139442 A1 WO 2021139442A1
Authority
WO
WIPO (PCT)
Prior art keywords
circuit board
buzzer
smart card
card according
sheet
Prior art date
Application number
PCT/CN2020/132393
Other languages
English (en)
French (fr)
Inventor
陈柳章
Original Assignee
深圳市文鼎创数据科技有限公司
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
Application filed by 深圳市文鼎创数据科技有限公司 filed Critical 深圳市文鼎创数据科技有限公司
Publication of WO2021139442A1 publication Critical patent/WO2021139442A1/zh

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/0772—Physical layout of the record carrier

Definitions

  • This application relates to the technical field of smart cards, and in particular to a smart card capable of buzzing.
  • Smart cards include bus cards, telephone cards, bank cards, etc., which are collectively referred to as plastic cards embedded with microchips, and generally require a reader to implement data interaction.
  • a buzzer chip In order to realize the buzzer function of the smart card, a buzzer chip needs to be set inside the smart card.
  • the current smart card is thin and its internal space is small.
  • the sound cavity used to accommodate the buzzer in the smart card is very small, and the sound cavity space occupied by the buzzer is large, resulting in a very low volume of the sound emitted by the buzzer, and the user experience Poor.
  • the small internal space of the smart card will also make the process of setting the buzzer inside the smart card more difficult and complex, resulting in low production efficiency and high cost.
  • One of the objectives of the embodiments of the present application is to provide a buzzerable smart card, which aims to solve the problem of low productivity caused by the complicated process of arranging a buzzer chip in the smart card, and low volume caused by a small sound cavity.
  • a smart card capable of buzzing comprising a housing, a circuit board, a buzzer sheet, and a sealed shell.
  • the housing is provided with an accommodating cavity, the circuit board is arranged in the accommodating cavity, and the buzzer sheet is attached On the circuit board, and on the same side of the buzzer piece, there are a first connection end and a second connection end, and the first connection end and the second connection end respectively form an electrical connection with the circuit board
  • the sealing shell is arranged on the circuit board and is enclosed with the circuit board to form a sound cavity, and the buzzer is arranged in the sound cavity.
  • the buzzer sheet includes a first metal sheet and a piezoelectric ceramic plate arranged on the first metal sheet, the first connecting end is arranged on the piezoelectric ceramic plate, and the first The two connecting ends are arranged on the first metal sheet.
  • the first metal sheet includes a metal body and a convex portion provided on the metal body, the piezoelectric ceramic plate is provided on the convex portion, and the second connecting end is provided on the convex portion.
  • the metal body is arranged on the outer periphery of the convex part.
  • a first conductive adhesive is provided on the first connecting end
  • a second conductive adhesive is provided on the second connecting end
  • the first conductive adhesive and the second conductive adhesive are respectively connected to the The circuit board forms an electrical connection.
  • a first pad and a second pad are spaced apart on the circuit board, and the first conductive glue is attached to the first pad and forms an electrical connection with the first pad. Connecting, the second conductive glue is pasted on the second pad and is electrically connected with the second pad.
  • the first conductive glue and the second conductive glue are spaced apart.
  • an insulating material is filled between the first conductive glue and the second conductive glue.
  • the first conductive glue and/or the second conductive glue are configured as solder paste.
  • the thickness of the first conductive adhesive is smaller than the thickness of the second conductive adhesive.
  • the thickness difference between the thickness of the first conductive adhesive and the thickness of the second conductive adhesive is within a preset range, so that the buzzer is parallel or nearly parallel to the circuit board, and the preset Set the range to 0.1 ⁇ 0.01mm.
  • the sealing shell includes a sealing kit and a second metal sheet, the sealing kit is provided on the circuit board and surrounded by the buzzer sheet, and the second metal sheet is covered by the buzzer sheet. On the sealing kit and respectively enclosing the sealing kit and the circuit board to form the sound cavity.
  • the height of the sealing kit along the thickness direction of the buzzerable smart card is 0.3 mm or less.
  • the thickness of the second metal sheet is less than 0.08 mm.
  • the second metal sheet is provided with a through hole, the through hole communicates with the sound cavity and faces the buzzer sheet, and the through hole is covered with a sealing sheet.
  • the thickness of the sealing sheet is in the range of 0.02-0.03 mm.
  • the housing includes a first substrate, a second substrate directly opposite to the first substrate and spaced apart, and a middle frame provided between the first substrate and the second substrate, The first substrate, the second substrate, and the middle frame are enclosed to form the accommodating cavity.
  • the accommodating cavity is filled with a filler, and the filler fixes the housing, the sealed shell, and the circuit board.
  • the circuit board is configured as a flexible circuit board.
  • the beneficial effect of the buzzerable smart card provided by the embodiments of the present application is that the housing, the circuit board, the buzzer sheet, and the sealing shell are separately provided.
  • the buzzer sheet is provided, the buzzer sheet is set in the housing cavity of the shell, and the The first connection end and the second connection end on the buzzer are respectively electrically connected to the circuit board, and finally the buzzer is set in the sound cavity by covering the sealing shell on the buzzer, and the buzzer can be realized
  • the setting process is very simple, the operation is very convenient and fast, and the production efficiency of the buzzer set in the containing cavity is improved.
  • the buzzer piece is electrically connected to the circuit board through the first connection end and the second connection end, and the overall thickness is small, which reduces the space occupied by the sound cavity, and can solve the problem that the sound cavity is too small and the buzzer in the prior art
  • the technical problem that the film occupies too much space in the sound cavity has increased the volume of the buzzer film.
  • Figure 1 is a plan view of a buzzable smart card provided by an embodiment of the application.
  • Figure 2 is a cross-sectional view of the buzzable smart card shown in Figure 1 along the A-A direction;
  • FIG. 3 is a cross-sectional view of the first metal piece of the buzzer piece shown in FIG. 1.
  • the buzzerable smart card provided by the embodiment of the present application includes a housing 1, a circuit board 2, a buzzer sheet 3, and a sealed shell 4.
  • the housing 1 is provided with a receiving cavity 11, the circuit board 2 is arranged in the receiving cavity 11, the buzzer 3 is attached to the circuit board 2, and the same side of the buzzer 3 has first connecting ends 31 respectively.
  • the second connecting end 32, the first connecting end 31 and the second connecting end 32 are spaced apart to prevent the buzzer 3 from being short-circuited.
  • the first connecting end 31 and the second connecting end 32 are electrically connected to the circuit board 2 respectively, so that the buzzer 3 is fixed on the circuit board 2.
  • the sealing shell 4 is arranged on the circuit board 2 and encloses the circuit board 2 to form a sound cavity 41, and the buzzer 3 is arranged in the sound cavity 41.
  • the sound cavity 41 is formed by enclosing the sealing shell 4 and the circuit board 2, and the buzzer 3 is connected to the circuit board 2, thereby reducing the space utilization of the sound cavity 41 by the buzzer 3 and increasing the buzzer.
  • the distance between the buzzer 3 and the inner wall of the sound cavity 41 facilitates the propagation of the sound of the buzzer 3, avoids the technical problem of low volume caused by the too small sound cavity 41 in the prior art, and increases the volume of the buzzer 3.
  • the process steps for setting the buzzer sheet 3 are: first fix the buzzer sheet 3 on the circuit board 2, and then cover the sealing shell 4 on the buzzer sheet 3, thereby making the buzzer sheet 3 It is arranged in the sound cavity 41 formed by the enclosed shell 4 and the circuit board 2.
  • the operation process is very simple, the production efficiency of the buzzer 3 setting is improved, and the cost is lower.
  • the housing 1, the circuit board 2, the buzzer 3, and the sealing shell 4 are respectively provided.
  • the buzzer 3 is provided, the buzzer 3 is set in the accommodating cavity 11 of the housing 1, and the buzzer The first connection end 31 and the second connection end 32 on the buzzer 3 are electrically connected to the circuit board 2 respectively, and finally the buzzer 3 is set in the sound cavity 41 by covering the sealing shell 4 on the buzzer 3 ,
  • the setting process of the buzzer 3 can be realized, the process is very simple, the operation is very convenient and fast, and the production efficiency of setting the buzzer 3 in the containing cavity 11 is improved.
  • the buzzer 3 is electrically connected to the circuit board 2 through the first connection end 31 and the second connection end 32, and the first connection end 31 and the second connection end 32 are arranged on the same side of the buzzer 3, so that One side of the buzzer piece 3 can be held against the circuit board 2, and the overall thickness is small, and the buzzer piece 3 is arranged in the sound cavity 41, which reduces the space occupied by the sound cavity 41, and the sound cavity 41 is a sealed shell 4 is formed by enclosing the circuit board 2, and the accommodating cavity 11 can reserve a large space for the design of the sound cavity 41, which can solve the problem that the sound cavity 41 is too small and the buzzer 3 occupies the sound cavity 41 in the prior art.
  • the technical problem of too much space increased the volume of the buzzer 3.
  • the first connecting end 31 and the second connecting end 32 are arranged on the same side of the buzzer 3, so that one side of the buzzer 3 can be held against the circuit board 2, so that the buzzer
  • the overall thickness of the sheet 3 that is electrically connected to the circuit board 2 is small, which can reduce the overall thickness of the accommodating cavity 11 in the smart card, that is, the overall thickness of the smart card, and when the thickness of the smart card is limited, the accommodating cavity 11 can be
  • the thickness reserved for the design of the sound cavity 41 is increased to facilitate the sound transmission of the buzzer 3 in the sound cavity 41 and increase the volume of the buzzer 3.
  • the accommodating cavity 11 is filled with filler, and the filler is used to fix the housing 1, the sealing shell 4, and the circuit board 2, and the sealing shell 4 can also be used to seal the sound cavity 41.
  • the filling glue in the receiving cavity 11 is prevented from entering the sound cavity 41 to damage the buzzer 3.
  • the circuit board 2 is configured as a flexible circuit board 2 (FPCB board).
  • FPCB board flexible circuit board 2
  • the buzzer sheet 3 includes a first metal sheet 33 and a piezoelectric ceramic plate.
  • the piezoelectric ceramic plate is arranged on the first metal sheet 33, and the first connecting end 31 is arranged on the piezoelectric ceramic plate.
  • the second connecting end 32 is provided on the first metal sheet 33 and is located on the same side of the first metal sheet 33 as the piezoelectric ceramic plate, and the first connecting end 31 on the piezoelectric ceramic plate is electrically connected to the circuit board 2.
  • the second connecting end 32 of the first metal sheet 33 is electrically connected to the circuit board 2, so that the entire buzzer sheet 3 can be conducted, and the current of the circuit board 2 can pass through the buzzer sheet 3, so that the buzzer sheet 3 can be in the circuit
  • the board 2 emits a corresponding sound when the current flows, and this arrangement can also reduce the thickness of the structure formed after the buzzer 3 and the circuit board 2 are electrically connected, thereby increasing the volume of the sound cavity 41.
  • the first metal sheet 33 includes a metal body 331 and a protrusion 332 provided on the metal body 331, the piezoelectric ceramic plate is provided on the protrusion 332, and the second connecting end 32 is provided on the metal
  • the main body 331 is arranged on the outer periphery of the convex part 332.
  • the convex portion 332 is arranged in the middle of one side of the metal body 331, the piezoelectric ceramic plate is arranged on the convex portion 332, and the first connecting end 31 is arranged in the central position on the side of the metal body 331.
  • the second connecting end 32 is arranged on the edge of one side of the metal body 331 and arranged on the outer periphery of the convex portion 332.
  • a first conductive adhesive 311 is provided on the first connecting end 31, and a second conductive adhesive 321 is provided on the second connecting end 32 spaced apart from the first conductive adhesive 311.
  • the glue 311 and the second conductive glue 321 are arranged on the same side of the buzzer 3, and the first conductive glue 311 and the second conductive glue 321 are respectively electrically connected to the circuit board 2, that is, the first connection terminal 31 and the second connection terminal 32 are respectively pasted on the circuit board 2 through the first conductive adhesive 311 and the second conductive adhesive 321, which simplifies the overall process and is very convenient to operate.
  • the buzzer 3 can be fixed on the circuit board 2 by directly pasting, and the completion is completed. Electrical connection.
  • the first conductive glue 311 abuts against the piezoelectric ceramic plate on the convex portion 332 of the first metal sheet 33 and the circuit board 2
  • the second conductive glue 321 abuts against the metal body 331 of the first metal sheet 33.
  • the design of the first conductive glue 311 and the second conductive glue 321 between the edge and the circuit board 2 can not only realize the electrical connection between the piezoelectric ceramic board and the circuit board 2, and between the metal body 331 and the circuit board 2, but also It can be used to fill the height difference between the metal body 331 and the piezoelectric ceramic board, so that the entire buzzer 3 can be flatly arranged on the circuit board 2.
  • the first conductive glue 311 and the second conductive glue 321 can be set as solder paste or other conductive materials, which are not uniquely limited here.
  • the circuit board 2 is provided with a first pad 21 and a second pad 22 spaced apart, and the first conductive glue 311 is pasted on the first pad 21 and connected to the first pad. 21 forms an electrical connection, and the second conductive glue 321 is pasted on the second pad 22 and forms an electrical connection with the second pad 22.
  • the cross section of the metal body 331 of the first metal sheet 33 is set in a circular shape, and the cross section of the convex portion 332 is also set in a circle.
  • the first pad 21 is set in a circular shape.
  • the two pads 22 are arranged in a ring shape, and the first pad 21 is arranged in the inner ring of the second pad 22 and is spaced apart from the second pad 22.
  • the actual shapes of the pads and the first metal sheet 33 are not uniquely limited here.
  • the first conductive adhesive 311 when the first conductive adhesive 311 is attached to the first pad 21 and the second conductive adhesive 321 is attached to the second pad 22, the first conductive adhesive 311 and the second conductive adhesive A gap is formed between the 321 to prevent the first conductive adhesive 311 and the second conductive adhesive 321 from contacting and causing the buzzer 3 to be short-circuited.
  • the gap between the first conductive adhesive 311 and the second conductive adhesive 321 is filled with insulating material to prevent the first conductive adhesive 311 and the second conductive adhesive 321 from contacting and causing the buzzer sheet 3 to short-circuit .
  • the thickness of the first pad 21 is the same as the thickness of the second pad 22, and according to the specific structure of the buzzer 3, the first connection There is a height difference between the terminal 31 and the second connecting terminal 32.
  • the first connecting terminal 31 is pasted on the first pad 21 through the first conductive glue 311, there is still a gap between the second connecting terminal 32 and the second pad 22. There is a very large space.
  • first connecting terminal 31 and the second connecting terminal 32 are respectively provided with the first conductive glue 311 and the second conductive glue 321, and the first conductive glue 311 resists the first pad 21 and the first connecting terminal 31,
  • the second conductive glue 321 abuts against the second pad 22 and the second connection terminal 32, so that the thickness of the first conductive glue 311 is smaller than the thickness of the second conductive glue 321.
  • the thicknesses of the first conductive glue 311 and the second conductive glue 321 are set differently, so that the piezoelectric ceramic plate can be used for the surface of the first pad 21 pasted by the first conductive glue 311, and the first metal sheet 33 can be used for the The surfaces of the two pads 22 pasted by the second conductive glue 321 are flush, so that the buzzer 3 can be smoothly arranged on the circuit board 2.
  • the first conductive adhesive 311 and the second conductive adhesive 321 are respectively attached to the buzzer sheet 3, so that the overall thickness of the buzzer sheet 3 does not change much.
  • the buzzer sheet 3 is set on the circuit board 2, the space occupied by the sound cavity 41 of the buzzer 3 is very small. The space used by the buzzer 3 for the sound cavity 41 is reduced, and the distance between the buzzer 3 and the sound cavity 41 along the inner wall of the smart card in the thickness direction is increased. Space, so that the volume of the buzzer 3 can be increased.
  • the thickness difference between the thickness of the first conductive adhesive 311 and the thickness of the second conductive adhesive 321 is within a preset range, so that the buzzer 3 and the circuit board 2 are parallel or nearly parallel to each other, thereby improving the setting of the buzzer 3
  • the circuit board 2 is stable, and the space in the thickness direction occupied by the buzzer sheet 3 can also be reduced.
  • the preset range is 0.1 ⁇ 0.01 mm.
  • the thickness of the first conductive adhesive 311 is 0.05 mm
  • the thickness of the second conductive adhesive 321 is 0.15 mm
  • the thickness difference between the first conductive adhesive 311 and the second conductive adhesive 321 is 0.1 mm
  • the first conductive adhesive 311 and the second conductive adhesive 321 can realize the buzzer 3 to be fixed on the circuit board 2 with a very small thickness, which reduces the occupied space of the buzzer 3 and the whole in the thickness direction of the smart card.
  • the process of setting the buzzer 3 is as follows: a first conductive adhesive 311 and a second conductive adhesive 321 are respectively arranged on the first connecting terminal 31 and the second connecting terminal 32, which will have a first conductive adhesive 311 and a second conductive adhesive 321.
  • the first connecting end 31 of a conductive adhesive 311 is pasted on the first pad 21, and the second connecting end 32 with the second conductive adhesive 321 is pasted on the second pad 22, and finally the sealing shell 4 is set to complete .
  • the process is very simple, and the operation is simple, which improves the production efficiency and reduces the cost.
  • the sealing shell 4 includes a sealing kit 42 and a second metal sheet 43.
  • the sealing kit 42 is disposed on the circuit board 2 and surrounds the buzzer sheet 3, and the second metal sheet 43 covers
  • the sound chamber 41 is formed on the sealing kit 42 and enclosed with the sealing kit 42 and the circuit board 2 respectively.
  • one end of the sealing sleeve 42 is fixed on the circuit board 2 and is surrounded by the buzzer 3, and the second metal sheet 43 is provided on the other end of the sealing sleeve 42.
  • the second metal sheet 43 is set as a metal sheet, and the setting of the sheet is used to reduce the occupied space in the thickness direction of the smart card, so that when the thickness of the smart card is limited, the volume of the sound cavity 41 can be appropriately increased.
  • the sealing kit 42 is used to seal the sound cavity 41 and isolate the filling glue in the accommodating cavity 11 to prevent the filling glue from entering the sound cavity 41 to enter the buzzer 3 and thereby affect the sound of the buzzer 3.
  • the sealing kit 42 can be set as foam, of course, it can be set as other sealing materials, which is not uniquely limited here.
  • the thickness of the sealing kit 42 in the thickness direction of the smart card is less than 0.3 mm, and the thickness of the sealing kit 42 in the thickness direction of the smart card is too large, which easily makes the thickness of the entire smart card very large and affects user experience.
  • the second metal sheet 43 is provided with a through hole 431
  • the through hole 431 communicates with the sound cavity 41 and faces the buzzer sheet 3
  • the through hole 431 is covered with a sealing sheet 44.
  • the arrangement of the through hole 431 increases the space of the sound cavity 41, thereby facilitating the sound of the buzzer 3 to increase the volume.
  • the thickness of the second metal sheet 43 is less than 0.08 mm, so as to avoid excessively large thickness and occupy space in the thickness direction, which is convenient for increasing the space of the sound cavity 41.
  • the thickness range of the through hole 431 is less than 0.08 mm.
  • the second metal sheet 43 is set as a copper sheet, but of course it can also be set as other metal sheets, which is not uniquely limited here.
  • the sealing sheet 44 is used to insulate the filling glue in the containing cavity 11 to prevent it from entering the sound cavity 41 to affect the use of the buzzer sheet 3.
  • the sealing sheet 44 can be set as a PET polyester film (PET film), which is not only thin, but can also be insulated and filled with glue to protect the buzzer 3, of course, it is not uniquely limited here.
  • PET film PET polyester film
  • the thickness of the sealing sheet 44 is in the range of 0.02-0.03 mm, which is very small, and the thickness is reduced as much as possible.
  • the arrangement of the first thermal conductive glue, the second thermal conductive glue, the second metal sheet 43 and the sealing sheet 44 can appropriately reduce the buzzer sheet 3 and the sealing shell 4 along the thickness direction of the smart card. Therefore, the thickness of the smart card can be reduced and the user experience can be improved.
  • the sound cavity 41 enclosed by the sealing shell 4 and the circuit board 2 can be appropriately enlarged, so that the volume of the buzzer 3 in the sound cavity 41 is increased, and the user experience is improved.
  • the housing 1 includes a first substrate 12, a second substrate 13 directly opposite to the first substrate 12 and spaced apart from each other, and a center provided between the first substrate 12 and the second substrate 13. Box 14.
  • the first substrate 12, the second substrate 13 and the middle frame 14 are enclosed to form a accommodating cavity 11.
  • the filling in the accommodating cavity 11 is used to use the first substrate 12, the second substrate 13, the middle frame 14, the circuit board 2 and the sealing shell 4Fixed.

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  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)

Abstract

一种可蜂鸣智能卡，该可蜂鸣智能卡包括外壳(1)、电路板(2)、蜂鸣片(3)以及密封壳(4)，外壳(1)内开设有容纳腔(11)，电路板(2)设于容纳腔(11)中，蜂鸣片(3)贴设于电路板(2)上，且蜂鸣片(3)的相同侧上具有第一连接端(31)及第二连接端(32)，第一连接端(31)及第二连接端(32)分别与电路板(2)形成电连接，密封壳(4)设于电路板(2)上并与电路板(2)围合形成音腔(41)，蜂鸣片(3)设于音腔(41)中。通过上述技术方案，减少了蜂鸣片(3)对音腔(41)的占用空间，可解决由于音腔(41)过小且蜂鸣片(3)占用音腔(41)的空间过大的问题，提高了蜂鸣片(3)的音量。

Description

可蜂鸣智能卡
本申请要求于2020年01月07日在中国专利局提交的、申请号为202010013214.8、发明名称为“可蜂鸣智能卡”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及智能卡技术领域，具体涉及一种可蜂鸣智能卡。
 背景技术
智能卡包括公交卡、电话卡、银行卡等，是内嵌有微芯片的塑料卡的统称，一般需要通过读写器来实现数据交互。
为了实现智能卡的蜂鸣作用，需要智能卡内部设置蜂鸣片。目前的智能卡较薄，其内部空间较小，智能卡内用于容纳蜂鸣片的音腔特别小，蜂鸣片占用的音腔空间较大，导致蜂鸣片发出声音的音量非常小，用户体验较差。且智能卡内部空间小还会使得在智能卡内部设置蜂鸣片的工艺难度较大，工艺比较复杂，导致生产效率较低，且成本较高。
 技术问题
本申请实施例的目的之一在于：提供一种可蜂鸣智能卡，旨在解决在智能卡内设置蜂鸣片的工艺复杂导致生产率低、音腔小导致音量小的问题。
 技术解决方案
为解决上述技术问题，本申请实施例采用的技术方案是：
提供了一种可蜂鸣智能卡，包括外壳、电路板、蜂鸣片以及密封壳，所述外壳内开设有容纳腔，所述电路板设于所述容纳腔中，所述蜂鸣片贴设于所述电路板上，且所述蜂鸣片的相同侧上具有第一连接端及第二连接端，所述第一连接端及所述第二连接端分别与所述电路板形成电连接，所述密封壳设于所述电路板上并与所述电路板围合形成音腔，所述蜂鸣片设于所述音腔中。
在一个实施例中，所述蜂鸣片包括第一金属片及设于所述第一金属片上的压电陶瓷板，所述第一连接端设于所述压电陶瓷板上，所述第二连接端设于所述第一金属片上。
在一个实施例中，所述第一金属片包括金属本体及设于所述金属本体上的凸部，所述压电陶瓷板设于所述凸部上，所述第二连接端设于所述金属本体上并围设于所述凸部外周。
在一个实施例中，所述第一连接端上设有第一导电胶，所述第二连接端上设有第二导电胶，所述第一导电胶与所述第二导电胶分别与所述电路板形成电连接。
在一个实施例中，所述电路板上间隔设有第一焊盘和第二焊盘，所述第一导电胶粘贴于所述第一焊盘上并与所述第一焊盘形成电连接，所述第二导电胶粘贴于所述第二焊盘上并与所述第二焊盘形成电连接。
在一个实施例中，所述第一导电胶与所述第二导电胶间隔设置。
在一个实施例中，所述第一导电胶和所述第二导电胶之间填充有绝缘材料。
在一个实施例中，所述第一导电胶和/或所述第二导电胶设置为锡膏。
在一个实施例中，沿所述蜂鸣片的轴向上，所述第一导电胶的厚度小于所述第二导电胶的厚度。
在一个实施例中，所述第一导电胶厚度与所述第二导电胶厚度的厚度差在预设范围内，以使所述蜂鸣片与所述电路板平行或接近平行，所述预设范围为0.1±0.01mm。
在一个实施例中，所述密封壳包括密封套件及第二金属片，所述密封套件设于所述电路板上并围设于所述蜂鸣片，所述第二金属片盖设于所述密封套件上，并分别与所述密封套件及所述电路板围合形成所述音腔。
在一个实施例中，所述密封套件沿所述可蜂鸣智能卡的厚度方向上的高度为0.3mm以下。
在一个实施例中，所述第二金属片的厚度小于0.08mm。
在一个实施例中，所述第二金属片上开设有通孔，所述通孔与所述音腔相通且正对所述蜂鸣片，所述通孔上盖设有密封片。
在一个实施例中，所述密封片的厚度范围为0.02-0.03mm。
在一个实施例中，所述外壳包括第一基板，与所述第一基板正对且间隔设置的第二基板，以及设于所述第一基板与所述第二基板之间的中框，所述第一基板、所述第二基板以及所述中框围合形成所述容纳腔。
在一个实施例中，所述容纳腔内填充有填充胶，所述填充胶将所述外壳、所述密封壳以及所述电路板固定。
在一个实施例中，所述电路板设置为柔性电路板。
 有益效果
本申请实施例提供的可蜂鸣智能卡的有益效果在于：通过分别设置外壳、电路板、蜂鸣片以及密封壳，设置蜂鸣片时，将蜂鸣片设置在外壳的容纳腔中，并将蜂鸣片上的第一连接端与第二连接端分别与电路板形成电连接，最后通过将密封壳罩设于蜂鸣片以使蜂鸣片设于音腔中，即可实现蜂鸣片的设置工艺，工艺十分简单，操作十分方便快速，提高蜂鸣片设置于容纳腔中的生产效率。另外，蜂鸣片通过第一连接端与第二连接端电连接于电路板上，整体厚度较小，减少了对音腔的占用空间，可解决现有技术中由于音腔过小且蜂鸣片占用音腔的空间过大的技术问题，提高了蜂鸣片的音量。
 附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例或示范性技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图。
图1为本申请实施例提供的可蜂鸣智能卡的平面图；
图2为图1所示可蜂鸣智能卡沿A-A方向上的剖视图；
图3为图1所示蜂鸣片的第一金属片的剖视图。
其中，图中各附图标记：
1-外壳；11-容纳腔；12-第一基板；13-第二基板；14-中框；2-电路板；21-第一焊盘；22-第二焊盘；3-蜂鸣片；31-第一连接端；311-第一导电胶；32-第二连接端；321-第二导电胶；33-第一金属片；331-金属本体；332-凸部；4-密封壳；41-音腔；42-密封套件；43-第二金属片；431-通孔；44-密封片。
 本发明的实施方式
为了使本申请的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本申请进行进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本申请，并不用于限定本申请。
需说明的是，当部件被称为“固定于”或“设置于”另一个部件，它可以直接在另一个部件上或者间接在该另一个部件上。当一个部件被称为是“连接于”另一个部件，它可以是直接或者间接连接至该另一个部件上。术语“上”、“下”、“左”、“右”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，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申请的限制，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的具体含义。术语“第一”、“第二”仅用于便于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明技术特征的数量。“多个”的含义是两个或两个以上，除非另有明确具体的限定。
为了说明本申请所提供的技术方案，以下结合具体附图及实施例进行详细说明。
请一并参阅图1及图2，本申请实施例提供的可蜂鸣智能卡包括外壳1、电路板2、蜂鸣片3以及密封壳4。
具体地，外壳1内开设有容纳腔11，电路板2设于容纳腔11中，蜂鸣片3贴设于电路板2上，且蜂鸣片3的相同侧上分别具有第一连接端31及第二连接端32，第一连接端31与第二连接端32间隔设置，避免蜂鸣片3短路。第一连接端31及第二连接端32分别与电路板2形成电连接，实现蜂鸣片3固定在电路板2上。密封壳4设于电路板2上并与电路板2围合形成音腔41，蜂鸣片3设于音腔41中。其中，音腔41是密封壳4与电路板2围合形成的，且蜂鸣片3连接在电路板2上，从而减少了蜂鸣片3对音腔41的空间利用，则增大了蜂鸣片3与音腔41的内壁之间的距离，便于蜂鸣片3的声音的传播，避免现有技术中因音腔41过小导致音量小的技术问题，提高蜂鸣片3的音量。
另外，本实施例中，蜂鸣片3设置的工艺步骤为，先将蜂鸣片3固定在电路板2上，再将密封壳4罩设于蜂鸣片3上，从而使得蜂鸣片3设于密封壳4与电路板2围合形成的音腔41中。操作工艺十分简单，提高蜂鸣片3设置的生产效率，且成本较低。
本申请实施例中，通过分别设置外壳1、电路板2、蜂鸣片3以及密封壳4，设置蜂鸣片3时，将蜂鸣片3设置在外壳1的容纳腔11中，并将蜂鸣片3上的第一连接端31与第二连接端32分别与电路板2形成电连接，最后通过将密封壳4罩设于蜂鸣片3以使蜂鸣片3设于音腔41中，即可实现蜂鸣片3的设置工艺，工艺十分简单，操作十分方便快速，提高蜂鸣片3设置于容纳腔11中的生产效率。另外，蜂鸣片3通过第一连接端31与第二连接端32电连接于电路板2上，且第一连接端31和第二连接端32设置在蜂鸣片3的相同侧，从而使得蜂鸣片3一侧可抵持于电路板2上，整体厚度较小，且蜂鸣片3设于音腔41中，则减少了对音腔41的占用空间，且音腔41是密封壳4与电路板2围合形成的，容纳腔11中能够为音腔41的设计预留的空间较大，可解决现有技术中由于音腔41过小且蜂鸣片3占用音腔41的空间过大的技术问题，提高了蜂鸣片3的音量。
具体地，本实施例中，第一连接端31与第二连接端32设置在蜂鸣片3的相同侧上，使得蜂鸣片3一侧可抵持于电路板2上，则使得蜂鸣片3电连接于电路板2上的整体厚度较小，可减小智能卡内容纳腔11的整体厚度，即可减小智能卡整体的厚度，而当智能卡的厚度限定时，容纳腔11中能够为音腔41的设计预留出的厚度增大，便于音腔41中蜂鸣片3的声音传播，提高蜂鸣片3的音量。
具体地，本实施例中，容纳腔11中填充有填充胶，该填充胶用于将外壳1、密封壳4以及电路板2实现固定，且密封壳4还可用于对音腔41实现密封，避免容纳腔11中的填充胶进入音腔41中以损坏蜂鸣片3。
具体地，本实施例中，电路板2设置为柔性电路板2（FPCB板），当然，此处可根据实际的需要设计，此处不唯一限定。
请参阅图2，本实施例中，蜂鸣片3包括第一金属片33及压电陶瓷板，压电陶瓷板设置在第一金属片33上，第一连接端31设于压电陶瓷板上，第二连接端32设于第一金属片33上且与压电陶瓷板位于第一金属片33的相同侧，压电陶瓷板上的第一连接端31电连接于电路板2上，且第一金属片33的第二连接端32电连接于电路板2上，从而可导通整个蜂鸣片3，电路板2的电流可经过蜂鸣片3，使得蜂鸣片3能够在电路板2的电流流动时发出对应的声音，且该设置还可减小蜂鸣片3与电路板2电连接后所形成结构的厚度，从而可加大音腔41的体积。
请参阅图3，本实施例中，第一金属片33包括金属本体331及设于金属本体331上的凸部332，压电陶瓷板设于凸部332上，第二连接端32设于金属本体331上并围设于凸部332外周。
具体地，本实施例中，凸部332设置在金属本体331一侧的中部，压电陶瓷板设置在凸部332上，且第一连接端31则设置在金属本体331一侧的中心位置上，第二连接端32设置在金属本体331一侧的边缘上且设于凸部332的外周。
请参阅图2，本实施例中，第一连接端31上设有第一导电胶311，第二连接端32上设有与第一导电胶311间隔设置的第二导电胶321，第一导电胶311与第二导电胶321设置在蜂鸣片3的相同侧上，第一导电胶311与第二导电胶321分别与电路板2形成电连接，即第一连接端31和第二连接端32分别通过第一导电胶311和第二导电胶321粘贴在电路板2上，简化了整体工艺，操作十分方便，直接粘贴即可完成将蜂鸣片3固定在电路板2上，且完成了电性连接。
其中，第一导电胶311抵持于第一金属片33的凸部332上的压电陶瓷板与电路板2之间，第二导电胶321抵接于第一金属片33的金属本体331的边缘与电路板2之间，第一导电胶311、第二导电胶321的设计，不仅能够实现压电陶瓷板与电路板2之间、金属本体331与电路板2之间的电连接，还可用于填充金属本体331与压电陶瓷板之间的高度差，从而使得整个蜂鸣片3能够平整地设置在电路板2上。
具体地，本实施例中，第一导电胶311与第二导电胶321可设置为锡膏或者其他的导电材料，此处不唯一限定。
请参阅图2，本实施例中，电路板2上设有间隔设置的第一焊盘21及第二焊盘22，第一导电胶311粘贴于第一焊盘21上并与第一焊盘21形成电连接，第二导电胶321粘贴于第二焊盘22上并与第二焊盘22形成电连接。
具体地，本实施例中，第一金属片33的金属本体331横截面设置为圆形状，凸部332的横截面也设置为圆形，对应的，第一焊盘21设置为圆形，第二焊盘22设置为环形状，且第一焊盘21设置在第二焊盘22的内环中且与第二焊盘22间隔设置。当然，此处对于焊盘和第一金属片33的实际形状不做唯一限定。
具体地，本实施例中，当第一导电胶311贴设在第一焊盘21上，第二导电胶321贴设在第二焊盘22上时，第一导电胶311与第二导电胶321之间形成有间隙，避免第一导电胶311与第二导电胶321接触而引起蜂鸣片3短路。
或者，在其他的实施例中，第一导电胶311与第二导电胶321之间的间隙中填充有绝缘材料，避免第一导电胶311与第二导电胶321接触而引起蜂鸣片3短路。
请参阅图2，本实施例中，沿蜂鸣片3的轴向上，第一焊盘21的厚度与第二焊盘22的厚度相同，且根据蜂鸣片3的具体结构，第一连接端31与第二连接端32之间存在高度差，当第一连接端31通过第一导电胶311粘贴于第一焊盘21上时，第二连接端32与第二焊盘22之间还存在非常大的空间。且由于第一连接端31与第二连接端32上分别设置有第一导电胶311与第二导电胶321，且第一导电胶311抵持于第一焊盘21与第一连接端31，第二导电胶321抵持于第二焊盘22与第二连接端32，从而使得第一导电胶311的厚度小于第二导电胶321的厚度。第一导电胶311与第二导电胶321的厚度不同设置，能够使得压电陶瓷板用于与第一焊盘21通过第一导电胶311粘贴的面，与第一金属片33用于与第二焊盘22通过第二导电胶321粘贴的面齐平，能够使得蜂鸣片3能够平稳地设置在电路板2上。
值得说明的是，蜂鸣片3上仅分别贴设有第一导电胶311及第二导电胶321，从而使得蜂鸣片3整体的厚度改变并不大，当蜂鸣片3设置在电路板2上时，蜂鸣片3所占用的音腔41空间非常小，减小蜂鸣片3对音腔41的利用空间，增大蜂鸣片3与音腔41沿智能卡厚度方向上的内壁的空间，从而可提高蜂鸣片3的音量。
本实施例中，第一导电胶311厚度和第二导电胶321厚度的厚度差在预设范围内，以使得蜂鸣片3和电路板2相互平行或接近平行，从而提高蜂鸣片3设置在电路板2的平稳，且还可减小了蜂鸣片3占用的厚度方向上的空间。
具体地，本实施例中，预设范围为0.1±0.01mm。
具体地，本实施例中，第一导电胶311的厚度为0.05mm，第二导电胶321的厚度为0.15mm，则第一导电胶311与第二导电胶321之间的厚度差为0.1mm，第一导电胶311与第二导电胶321能够实现蜂鸣片3固定在电路板2上，且厚度均非常小，减小蜂鸣片3和整体沿智能卡厚度方向上的占用空间。
值得说明的是，本实施例中，蜂鸣片3的设置工艺为：在第一连接端31和第二连接端32上分别设置第一导电胶311和第二导电胶321，将带有第一导电胶311的第一连接端31粘贴于第一焊盘21上，将带有第二导电胶321的第二连接端32粘贴于第二焊盘22上，最后设置密封壳4即可完成。工艺十分简单，且操作简易，提高生产效率，降低成本。
请参阅图2，本实施例中，密封壳4包括密封套件42及第二金属片43，密封套件42设于电路板2上并围设于蜂鸣片3，第二金属片43盖设于密封套件42上，并分别与密封套件42及电路板2围合形成音腔41。
具体地，本实施例中，密封套件42一端固定在电路板2上，且围设于蜂鸣片3，第二金属片43设置在密封套件42另一端上。第二金属片43设置为金属薄片，薄片的设置用于减小在智能卡厚度方向上的占用空间，从而在智能卡的厚度限定时，可适当增大音腔41的体积。
另外，密封套件42用于密封音腔41，隔绝容纳腔11中的填充胶，避免填充胶进入音腔41中以进入蜂鸣片3导致影响蜂鸣片3出声。此处密封套件42可设置为泡棉，当然可以设置为其他的密封材料，此处不唯一限定。
具体地，本实施例中，密封套件42沿智能卡厚度方向上的厚度为0.3mm以下，密封套件42沿智能卡厚度方向的厚度过大，容易使得整个智能卡的厚度非常大而影响用户体验。
请参阅图2，本实施例中，第二金属片43上开设有通孔431，通孔431与音腔41相通且正对蜂鸣片3，通孔431上盖设有密封片44。通孔431的设置，增大了音腔41的空间，从而便于蜂鸣片3的出声，以增大音量。其中，本实施例中，第二金属片43的厚度小于0.08mm，避免厚度过大而导致占用厚度方向上的空间，便于对音腔41的空间的增大。此时，通孔431的厚度范围小于0.08mm。
具体地，本实施例中，第二金属片43设置为铜片，当然也可设置为其他的金属薄片，此处不唯一限定。
具体地，本实施例中，密封片44用于隔绝容纳腔11中的填充胶，避免其进入音腔41中导致影响蜂鸣片3的使用。密封片44可设置为PET聚酯薄膜（PET薄膜），不仅薄，还可隔绝填充胶以保护蜂鸣片3，当然，此处不唯一限定。其中，密封片44的厚度范围为0.02-0.03mm，非常小，尽可能地减小了厚度。
需要说明的是，本实施例中，第一导热胶、第二导热胶、第二金属片43以及密封片44的设置，能够适当地减小了蜂鸣片3及密封壳4沿智能卡厚度方向上的厚度，因而可减小智能卡的厚度，提高用户体验。另外，当智能卡的厚度限定时，则可适当增大密封壳4与电路板2围合形成的音腔41，那么提高音腔41中蜂鸣片3的音量大小，提高用户体验。
请参阅图2，本实施例中，外壳1包括第一基板12，与第一基板12正对且间隔设置的第二基板13，以及设于第一基板12与第二基板13之间的中框14。第一基板12、第二基板13以及中框14围合形成容纳腔11，容纳腔11中的填充胶用于将第一基板12、第二基板13、中框14、电路板2以及密封壳4固定。
以上仅为本申请的可选实施例而已，并不用于限制本申请。对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的权利要求范围之内。

Claims (18)

  1. 一种可蜂鸣智能卡，其特征在于，包括外壳（1）、电路板（2）、蜂鸣片（3）以及密封壳（4），所述外壳（1）内开设有容纳腔（11），所述电路板（2）设于所述容纳腔（11）中，所述蜂鸣片（3）贴设于所述电路板（2）上，且所述蜂鸣片（3）的相同侧上具有第一连接端（31）及第二连接端（32），所述第一连接端（31）及所述第二连接端（32）分别与所述电路板（2）形成电连接，所述密封壳（4）设于所述电路板（2）上并与所述电路板（2）围合形成音腔（41），所述蜂鸣片（3）设于所述音腔（41）中。
  2. 如权利要求1所述的可蜂鸣智能卡，其特征在于，所述蜂鸣片（3）包括第一金属片（33）及设于所述第一金属片（33）上的压电陶瓷板，所述第一连接端（31）设于所述压电陶瓷板上，所述第二连接端（32）设于所述第一金属片（33）上。
  3. 如权利要求2所述的可蜂鸣智能卡，其特征在于，所述第一金属片（33）包括金属本体（331）及设于所述金属本体（331）上的凸部（332），所述压电陶瓷板设于所述凸部（332）上，所述第二连接端（32）设于所述金属本体（331）上并围设于所述凸部（332）外周。
  4. 如权利要求1所述的可蜂鸣智能卡，其特征在于，所述第一连接端（31）上设有第一导电胶（311），所述第二连接端（32）上设有第二导电胶（321），所述第一导电胶（311）与所述第二导电胶（321）分别与所述电路板（2）形成电连接。
  5. 如权利要求4所述的可蜂鸣智能卡，其特征在于，所述电路板（2）上间隔设有第一焊盘（21）和第二焊盘（22），所述第一导电胶（311）粘贴于所述第一焊盘（21）上并与所述第一焊盘（21）形成电连接，所述第二导电胶（321）粘贴于所述第二焊盘（22）上并与所述第二焊盘（22）形成电连接。
  6. 如权利要求4所述的可蜂鸣智能卡，其特征在于，所述第一导电胶（311）与所述第二导电胶（321）间隔设置。
  7. 如权利要求4所述的可蜂鸣智能卡，其特征在于，所述第一导电胶（311）和所述第二导电胶（321）之间填充有绝缘材料。
  8. 如权利要求4所述的可蜂鸣智能卡，其特征在于，所述第一导电胶（311）和/或所述第二导电胶（321）设置为锡膏。
  9. 如权利要求4所述的可蜂鸣智能卡，其特征在于，沿所述蜂鸣片（3）的轴向上，所述第一导电胶（311）的厚度小于所述第二导电胶（321）的厚度。
  10. 如权利要求9所述的可蜂鸣智能卡，其特征在于，所述第一导电胶（311）厚度与所述第二导电胶（321）厚度的厚度差在预设范围内，以使所述蜂鸣片（3）与所述电路板（2）平行或接近平行，所述预设范围为0.1±0.01mm。
  11. 如权利要求1-10任一项所述的可蜂鸣智能卡，其特征在于，所述密封壳（4）包括密封套件（42）及第二金属片（43），所述密封套件（42）设于所述电路板（2）上并围设于所述蜂鸣片（3），所述第二金属片（43）盖设于所述密封套件（42）上，并分别与所述密封套件（42）及所述电路板（2）围合形成所述音腔（41）。
  12. 如权利要求11所述的可蜂鸣智能卡，其特征在于，所述密封套件（42）沿所述可蜂鸣智能卡的厚度方向上的高度为0.3mm以下。
  13. 如权利要求11所述的可蜂鸣智能卡，其特征在于，所述第二金属片（43）的厚度小于0.08mm。
  14. 如权利要求11所述的可蜂鸣智能卡，其特征在于，所述第二金属片（43）上开设有通孔（431），所述通孔（431）与所述音腔（41）相通且正对所述蜂鸣片（3），所述通孔（431）上盖设有密封片（44）。
  15. 如权利要求14所述的可蜂鸣智能卡，其特征在于，所述密封片（44）的厚度范围为0.02-0.03mm。
  16. 如权利要求1-10任一项所述的可蜂鸣智能卡，其特征在于，所述外壳（1）包括第一基板（12），与所述第一基板（12）正对且间隔设置的第二基板（13），以及设于所述第一基板（12）与所述第二基板（13）之间的中框（14），所述第一基板（12）、所述第二基板（13）以及所述中框（14）围合形成所述容纳腔（11）。
  17. 如权利要求1-10任一项所述的可蜂鸣智能卡，其特征在于，所述容纳腔（11）内填充有填充胶，所述填充胶将所述外壳（1）、所述密封壳（4）以及所述电路板（2）固定。
  18. 如权利要求1-10任一项所述的可蜂鸣智能卡，其特征在于，所述电路板（2）设置为柔性电路板（2）。
PCT/CN2020/132393 2020-01-07 2020-11-27 可蜂鸣智能卡 WO2021139442A1 (zh)

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US6060332A (en) * 1995-10-26 2000-05-09 Gemplus Hybrid device with flush-mounted contacts for generating acoustic signals, and method for making same
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