WO2019091080A1 - Dispositif électronique - Google Patents

Dispositif électronique Download PDF

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Publication number
WO2019091080A1
WO2019091080A1 PCT/CN2018/086901 CN2018086901W WO2019091080A1 WO 2019091080 A1 WO2019091080 A1 WO 2019091080A1 CN 2018086901 W CN2018086901 W CN 2018086901W WO 2019091080 A1 WO2019091080 A1 WO 2019091080A1
Authority
WO
WIPO (PCT)
Prior art keywords
electronic device
main pcb
extending portion
board
antenna
Prior art date
Application number
PCT/CN2018/086901
Other languages
English (en)
Chinese (zh)
Inventor
许春晖
何其娟
管康平
Original Assignee
歌尔股份有限公司
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 歌尔股份有限公司 filed Critical 歌尔股份有限公司
Publication of WO2019091080A1 publication Critical patent/WO2019091080A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields

Definitions

  • the present invention relates to an electronic device, and more particularly to an electronic device having an antenna structure.
  • the volume of wearable products at this stage is getting smaller and smaller, which requires compact assembly between the various components within the product.
  • the antenna in the product is easily affected by other metal devices in the vicinity. In order to solve this problem, it is often necessary to ground the metal device in order to reduce the interference of the metal device on the antenna.
  • the housing includes an upper case and a lower case, and an FPCB board is usually used for electrical connection between the upper case and the lower case.
  • an FPCB board is usually used for electrical connection between the upper case and the lower case.
  • one end of the FPCB board is attached to the upper case, and one end is connected to the lower case, and the original length of the FPCB board needs to be larger than the linear distance from the upper case to the lower case after assembly.
  • the FPCB board is bent in an S shape in the inner cavity of the housing. Since the FPCB board has a certain length, even if the FPCB board is grounded, the current flowing in the FPCB board still causes a large interference to the antenna signal.
  • an electronic device comprising a housing surrounded by an upper case and a lower case, and a main PCB board, an FPCB board disposed in the case, and an antenna disposed on an inner wall of the upper case
  • the FPCB board is connected between the upper shell and the main PCB board; the portion of the FPCB board between the upper shell and the main PCB board is bent into two approximately parallel first extensions, second extensions, and connections a curved portion of the first extension portion and the second extension portion;
  • a conducting portion is disposed between the first extending portion and the second extending portion, and one end of the conducting portion is electrically connected to a ground end of the first extending portion, and the other end is electrically connected to a ground end of the second extending portion .
  • the conductive portion is disposed away from the curved portion.
  • the conductive portion is located at a middle portion of the first extension portion and the second extension portion.
  • the conductive portion is approximately perpendicular to the first extension portion and the second extension portion.
  • a position at which the conductive portion and the second extending portion are electrically connected is located in a region where the FPCB board is connected to the main PCB board; and the conductive portion is an elastic conductive body.
  • a pin on the second extension portion opposite to the main PCB board is disposed, the pin is inserted into the main PCB board; and the other side of the second extension is provided with a complement In the strong portion, the reinforcing portion is electrically connected to the ground end of the second extending portion; and the conducting portion is electrically connected to the reinforcing portion.
  • one end of the conductive portion is soldered to the exposed ground pad of the first extension portion, and the other end is in contact with the reinforcing portion.
  • the elastic electrical conductor comprises an elastic material portion, a thin film layer encasing the elastic material portion, and a metal layer plated on an outer surface of the thin film layer.
  • the elastic material portion is made of a silica gel or a rubber material; the thin film layer is a PI film, and the metal layer includes a copper layer.
  • the antenna is a loop antenna, and an area surrounded by the antenna on the inner wall of the upper shell constitutes a connection area; and an end of the FPCB board is provided with a connection end connected to the connection area.
  • connection end is a touch module.
  • the main PCB board is provided with a conductive pillar for contacting the antenna feeding point.
  • the length of the metal ground between the first extension portion and the second extension portion can be greatly shortened, that is, the metal ground of the first extension portion can directly pass through the metal portion of the conduction portion and the second extension portion.
  • the current does not need to flow along the metal ground of the FPCB board itself, thereby greatly reducing the interference of the current in the FPCB board to the antenna.
  • FIG. 1 is a schematic structural view of an electronic device of the present invention.
  • Figure 2 is an exploded view of Figure 1.
  • Figure 3 is a front elevational view of the upper casing of Figure 2.
  • FIG. 4 is a front elevational view of the FPCB board of FIG. 2 after being bent.
  • Figure 5 is a front elevational view of the FPCB board of Figure 2 after deployment.
  • FIG. 6 is a schematic structural view of the conductive portion of FIG. 4.
  • FIG. 6 is a schematic structural view of the conductive portion of FIG. 4.
  • the present invention provides an electronic device having an antenna structure disposed therein such that the electronic device can communicate with an external terminal.
  • the electronic device can be a device known to those skilled in the art, such as a Bluetooth headset, a wristband, a smart watch, a headset VR glasses, and the like.
  • a Bluetooth headset for convenience of description, the electronic device of the present invention will now be described in detail by taking a Bluetooth headset as an example.
  • the electronic device of the present invention has a casing including an upper casing 1 and a lower casing 2 which are fastened together, and a main PCB board 5 of the earphone is disposed in the casing, the main PCB board 5 together with the earphone
  • a sounding unit or the like may be assembled in the lower case 2, and the upper case 1 as a cover body covers the lower case 2.
  • the electronic device of the present invention is provided with an antenna 3 on the inner wall of the upper casing 1.
  • the antenna 3 preferably adopts a loop antenna structure which can be attached to the inner wall of the upper casing 1.
  • the antenna 3 may be an FPC antenna, an LDS antenna, a ram antenna or the like which is well known to those skilled in the art.
  • the antenna 3 when the antenna 3 employs an FPC antenna or a ram antenna, the antenna 3 can be directly fixed to the inner wall of the upper casing 1 by means of a glue material, a fixing column or a method well known to those skilled in the art.
  • the antenna 3 adopts an LDS antenna, the antenna 3 can be formed on the inner wall of the upper casing 1 by the LDS technique, which will not be specifically described herein.
  • the antenna 3 needs to be connected to the main PCB board 5, for example by means of a wire or a flexible circuit board.
  • the main PCB board 5 is provided with a conductive post 50 extending toward the antenna 3, and when the upper shell 1 and the lower shell 2 are fastened together, the conductive post 50 can be connected to the antenna 3.
  • the upper feed point contacts are mated together, thereby achieving the connection of the antenna 3 to the main PCB board 5.
  • the electronic device of the present invention further includes an FPCB board 6 connected between the upper case 1 and the main PCB board 5.
  • the end of the FPCB board 6 or a position on the FPCB board 6 is electrically connected to the main PCB board 5; the other end position of the FPCB board 6 can be connected to the upper case 1 or to the upper case 1
  • the signal on the main PCB board 5 can be conducted to the upper casing 1 or to the components of the upper casing 1.
  • connection area 4 which may be circular in shape, rectangular or in the field. Other shapes well known to the skilled person.
  • the end of the FPCB board 6 is provided with a connection end 62 connected to the connection area 4, with reference to FIG. Further preferably, the connection end 62 of the FPCB board 6 is a touch module, and the shape of the touch module can match the shape of the connection area 4, and is attached to the connection area 4 of the upper case 1 so that the touch can be touched.
  • the surface of the upper case 1 realizes control of the Bluetooth earphone.
  • the FPCB board 6 Before the upper case 1 and the lower case 2 of the present invention are fastened, a part of the FPCB board 6 is connected to the main PCB board 5, and the other part is connected to the upper case 1. After the upper case 1 and the lower case 2 are fastened, the portion 60 of the FPCB board 6 between the upper case 1 and the main PCB board 5 is bent and can be bent into two approximately parallel firsts by control.
  • a portion 60 of the FPCB board 6 between the upper case 1 and the main PCB board 5 is reciprocally bent between the upper case 1 and the main PCB board 5, and is approximately S-shaped, C-shaped or zig-zag.
  • the first extension portion 600 is adjacent to one side of the upper case 1, and the second extension portion 601 is adjacent to one side of the main PCB board 5.
  • the first extension 600 and the second extension 601 are connected in a transitional manner by a bend.
  • a conducting portion 7 is disposed between the first extending portion 600 and the second extending portion 601.
  • One end of the conducting portion 7 is electrically connected to the ground end of the first extending portion 600, and the other end is grounded to the second extending portion 601.
  • the terminal is turned on.
  • the length of the ground layer between the first extending portion 600 and the second extending portion 601 can be greatly shortened, that is, the ground layer of the first extending portion 600 can be directly connected through the conductive layer 7 and the ground layer of the second extending portion 601.
  • the current does not have to flow along the metal ground of the FPCB board 6 itself, whereby the length of the formation of the FPCB board 6 can be shortened, so that the interference of the current in the FPCB board 6 to the antenna can be greatly reduced.
  • the conductive portion 7 is approximately perpendicular to the first extending portion 600 and the second extending portion 601, so that the length of the ground layer between the first extending portion 600 and the second extending portion 601 is further shortened, and the current pair in the FPCB board 6 is reduced. Antenna interference.
  • the conductive portion 7 is located at a central portion of the first extending portion 600 and the second extending portion 601 such that the positions of the two ends of the first extending portion 600 located above can be in their own gravity. Bend down.
  • the position where the conduction portion 7 and the second extension portion 601 are electrically connected is located in a region where the FPCB board 6 is connected to the main PCB board 5.
  • a side opposite to the main PCB board 5 on the second extension portion 601 (refer to the view direction of FIG. 4, the lower side of the second extension portion 601) is provided with a pin 63 which can be combined with the main PCB board 5 are plugged together to achieve mechanical and electrical connection of the FPCB board 6 to the main PCB board 5.
  • a reinforcing portion 61 such as a metal piece is provided to realize the FPCB board. 6 Structure reinforcement at pin 63 position.
  • the reinforcing portion 61 may be attached to the surface of the second extending portion 601 and electrically connected to the ground end of the second extending portion 601.
  • the conducting portion 7 can be electrically connected to the reinforcing portion 61 to achieve conduction between the conducting portion 7 and the grounding end of the second extending portion 601.
  • the conductive portion 7 may be welded to the reinforcing portion 61.
  • the conductive portion 7 is connected to the first extending portion 600. That is, one end of the conductive portion 7 can be connected to the exposed ground pad 602 of the first extension portion 600 by soldering, with reference to FIG. The other end of the conductive portion 7 is in contact with the reinforcing portion 61 on the second extending portion 601.
  • the conductive portion 7 has no contact relationship with the reinforcing portion 61 on the second extending portion 601 before mounting.
  • the portion 60 of the FPCB board 6 between the upper case 1 and the main PCB board 5 is bent between the upper case 1 and the main PCB board 5, at this time, the conduction portion The end of the seventh end is in contact with the reinforcing portion 61 on the second extending portion 601 to achieve conduction between the conducting portion 7 and the grounding end of the second extending portion 601.
  • the conductive portion 7 of the present invention preferably employs an elastic conductor so that the first extending portion 600 can be supported.
  • the conductive portion 7 and the reinforcing portion 61 on the second extending portion 601 are in a contact fit manner, the conductive portion 7 can be pressed between the upper case 1 and the main PCB board 5, thereby ensuring the guiding.
  • the force at the time of contact between the through portion 7 and the reinforcing portion 61 can be used to buffer the strength of the upper case 1 to press the FPCB board 6 and the main PCB board 5.
  • the elastic conductor of the present invention may be a material well known to those skilled in the art as long as it is elastic and electrically conductive.
  • the elastic conductor comprises an elastic material portion 70, a film layer 71 encasing the elastic material portion 70, and a metal layer 72 plated on the outer surface of the film layer 71.
  • the elastic material portion 70 may be an elastic material well known to those skilled in the art such as silica gel or rubber, which can be formed by a pressing process so that the volume of the elastic material portion 70 can be controlled to be small, and the precision of the product can be ensured.
  • a hollow structure 73 is further provided on the elastic material portion 70 to improve the elastic deformation ability of the elastic material portion 70.
  • the film layer 71 may be a PI film. After the elastic material portion 70 is molded, the film layer 71 is wrapped around the outer side of the elastic material portion 70, and the metal layer 72 is plated on the surface of the film layer 71 by electroless plating.
  • the metal layer 72 may be a copper layer, and a tin layer or a gold layer may be plated on the surface of the copper layer.
  • the elastic conductor of the structure is used to connect the elastic conductor to the exposed ground pad 602 of the first extension portion 600 by means of SMT (Surface Mount Technology) to ensure the bonding. Position accuracy and assembly efficiency are also high; and SMT welding method, the assembly is more robust than the traditional bonding method, and the thrust test reliability of the component is higher.
  • the elastic conductor directly uses the metal layer 72 as a grounding medium, and foams cotton relative to other woven fabrics and filler metal particles, because the metal layer 72 has high purity, good electrical conductivity, and low internal resistance.
  • the elastic conductors are in surface contact with the first extension portion 600 and the second extension portion 601, so that the balance of the FPCB board 6 after assembly is good.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Details Of Aerials (AREA)
  • Telephone Set Structure (AREA)

Abstract

La présente invention concerne un dispositif électronique. Une antenne est disposée sur une paroi interne d'un boîtier supérieur. Une FPCB est connectée entre le boîtier supérieur et une PCB principale. La partie de la FPCB située entre le boîtier supérieur et la PCB principale est pliée en deux parties, c'est-à-dire, une première partie d'extension et une seconde partie d'extension, qui sont approximativement parallèles l'une à l'autre, et une partie de flexion reliant la première partie d'extension et la seconde partie d'extension Une partie de conduction est disposée entre la première partie d'extension et la seconde partie d'extension Une extrémité de la partie de conduction communique avec une borne de masse de la première partie d'extension, et l'autre extrémité de la partie de conduction communique avec une borne de masse de la seconde partie d'extension Selon la présente invention, la masse métallique de la première partie d'extension et la masse métallique de la seconde partie d'extension communiquent l'une avec l'autre au moyen de la partie de conduction, le courant ne s'écoule pas le long de la masse métallique de la FPCB, et par conséquent, les interférences du courant dans la FPCB sur l'antenne peuvent être fortement réduites.
PCT/CN2018/086901 2017-11-08 2018-05-15 Dispositif électronique WO2019091080A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201721481916.9U CN207652814U (zh) 2017-11-08 2017-11-08 一种电子设备
CN201721481916.9 2017-11-08

Publications (1)

Publication Number Publication Date
WO2019091080A1 true WO2019091080A1 (fr) 2019-05-16

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ID=62889011

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Application Number Title Priority Date Filing Date
PCT/CN2018/086901 WO2019091080A1 (fr) 2017-11-08 2018-05-15 Dispositif électronique

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CN (1) CN207652814U (fr)
WO (1) WO2019091080A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110362159A (zh) * 2019-08-12 2019-10-22 广东虹勤通讯技术有限公司 笔记本电脑

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111585072B (zh) * 2020-05-29 2022-06-17 维沃移动通信有限公司 电子设备
CN114302287A (zh) * 2021-12-30 2022-04-08 华勤技术股份有限公司 电路板组件及其组装方法、耳机

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4901039A (en) * 1989-03-06 1990-02-13 The United States Of America As Represented By The Secretary Of The Navy Coupled strip line circuit
US7265719B1 (en) * 2006-05-11 2007-09-04 Ball Aerospace & Technologies Corp. Packaging technique for antenna systems
CN201188717Y (zh) * 2008-03-17 2009-01-28 英华达股份有限公司 软性电路板
CN201252631Y (zh) * 2007-01-06 2009-06-03 苹果公司 耳机电子装置
TW201042831A (en) * 2009-05-22 2010-12-01 Foxconn Comm Technology Corp PIFA antenna and protable device using the same
EP2326066B1 (fr) * 2009-11-19 2012-07-11 Samsung Electronics Co., Ltd. Appareil de réduction de bruit de terminal mobile

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4901039A (en) * 1989-03-06 1990-02-13 The United States Of America As Represented By The Secretary Of The Navy Coupled strip line circuit
US7265719B1 (en) * 2006-05-11 2007-09-04 Ball Aerospace & Technologies Corp. Packaging technique for antenna systems
CN201252631Y (zh) * 2007-01-06 2009-06-03 苹果公司 耳机电子装置
CN201188717Y (zh) * 2008-03-17 2009-01-28 英华达股份有限公司 软性电路板
TW201042831A (en) * 2009-05-22 2010-12-01 Foxconn Comm Technology Corp PIFA antenna and protable device using the same
EP2326066B1 (fr) * 2009-11-19 2012-07-11 Samsung Electronics Co., Ltd. Appareil de réduction de bruit de terminal mobile

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110362159A (zh) * 2019-08-12 2019-10-22 广东虹勤通讯技术有限公司 笔记本电脑

Also Published As

Publication number Publication date
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