CN202094955U - Printed circuit board (PCB) and mobile terminal including same - Google Patents

Printed circuit board (PCB) and mobile terminal including same Download PDF

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Publication number
CN202094955U
CN202094955U CN2011201258703U CN201120125870U CN202094955U CN 202094955 U CN202094955 U CN 202094955U CN 2011201258703 U CN2011201258703 U CN 2011201258703U CN 201120125870 U CN201120125870 U CN 201120125870U CN 202094955 U CN202094955 U CN 202094955U
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CN
China
Prior art keywords
pcb
hole
cover body
metal cover
microphone
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
CN2011201258703U
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Chinese (zh)
Inventor
王槐庆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZTE Corp
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ZTE Corp
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 ZTE Corp filed Critical ZTE Corp
Priority to CN2011201258703U priority Critical patent/CN202094955U/en
Application granted granted Critical
Publication of CN202094955U publication Critical patent/CN202094955U/en
Priority to PCT/CN2012/074401 priority patent/WO2012146147A1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • H04M1/0277—Details of the structure or mounting of specific components for a printed circuit board assembly

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)

Abstract

The utility model discloses a printed circuit board (PCB), which is used for guaranteeing a better sound cavity effect under the premise that the structure of the terminal is flexible and small. A terminal comprises a function main body and further comprises a first through hole arranged on the PCB, a microphone arranged on one side of the PCB and a closed metal cover opposite to the microphone and arranged on the other side of the PCB. A sound hole of the microphone is communicated with the first through hole. The utility model further discloses a mobile terminal including the PCB.

Description

A kind of PCB and comprise the portable terminal of described PCB
Technical field
The utility model relates to the machinery and the communications field, particularly a kind of PCB and comprise the portable terminal of described PCB.
Background technology
Mobile phone MIC (microphone) will guarantee good effect, must guarantee two conditions: suitable path and airtight sound chamber, if it is improper that path is selected, can cause conversation sound little, if the sound chamber is airtight not tight, then can cause talk echo to utter long and high-pitched sounds, especially in hand-free call, talk echo is uttered long and high-pitched sounds more obvious.
For avoiding above problem, common way is the independent sound alveolus of design in mobile phone at present, forms the suitable path and the sound chamber of sealing by handset shell, foam or TPU (TPUE rubber).But this mode has two shortcomings:
One, need special-purpose sound cavity space is set in mobile phone, and this is unfavorable for that mobile phone develops to thinner, littler direction.
Two, in the design of the sound chamber of some mobile phone, path can be crossed over mobile phone back cover and battery cover, or mobile phone back cover and handset front case.And can have gap, this gap between two shells of mobile phone is unavoidable in the course of processing, and this can cause the sound chamber poorly sealed, conversation occurs and utters long and high-pitched sounds.
How when reaching good communication effect, guarantee that mobile phone is more flexible small and exquisite, just become common concern and problem demanding prompt solution.
The utility model content
The utility model embodiment provides a kind of PCB and comprises the portable terminal of described PCB, is used for guaranteeing sound chamber effect preferably satisfying under the flexibly small and exquisite prerequisite of terminal moulding.
A kind of printing board PCB comprises function body, comprising: be positioned at first through hole on the described PCB; And
Be positioned at the microphone of described PCB one side, be positioned at the described PCB opposite side airtight metal cover body relative with described microphone position;
Sender on the described microphone communicates with described first through hole.
A kind of portable terminal comprises terminal enclosure, also comprises described PCB, wherein, has third through-hole on the described terminal enclosure; Have second through hole on the described metal cover body, described second through hole communicates with described third through-hole.
PCB comprises among the utility model embodiment: function body also comprises first through hole that is positioned on the described PCB; And the microphone that is positioned at described PCB one side, be positioned at the described PCB opposite side airtight metal cover body relative with described microphone position; Sender on the described microphone communicates with described first through hole.The metal cover body is airtight among the utility model embodiment, and the sound chamber airtight performance that metal cover body, first through hole and sender are constituted is better, avoids occurring conversation and utters long and high-pitched sounds.Thin by the metal cover body is done simultaneously, optimize sound chamber path as far as possible, the sound of avoiding conversing is too small.
Description of drawings
Fig. 1 is the primary structure figure of PCB among the utility model embodiment;
Fig. 2 is the detailed structure view of portable terminal among the utility model embodiment.
Embodiment
PCB comprises among the utility model embodiment: function body also comprises first through hole that is positioned on the described PCB; And the microphone that is positioned at described PCB one side, be positioned at the described PCB opposite side airtight metal cover body relative with described microphone position; Sender on the described microphone communicates with described first through hole.The metal cover body is airtight among the utility model embodiment, and the sound chamber airtight performance that metal cover body, first through hole and sender are constituted is better, avoids occurring conversation and utters long and high-pitched sounds.Thin by the metal cover body is done simultaneously, optimize sound chamber path as far as possible, the sound of avoiding conversing is too small.
Referring to Fig. 1, the PCB among the utility model embodiment (printed circuit board (PCB)) comprises function body, and this function body can be used for communication, especially for the call function in the communication process, also comprises microphone 1021 and metal cover body 1022.Have first through hole on the described PCB.
Microphone 1021 is positioned on the PCB, and PCB can be positioned under the keycap of portable terminal among the utility model embodiment.Microphone 1021 is fixed on the PCB, and fixed form can be welding.First through hole is arranged on PCB, for example, can utilize puncher on PCB, to open first through hole, on the PCB one first through hole can be arranged, be positioned at the marginal portion of PCB, promptly be positioned at the marginal portion of terminal keyboard.It should be noted that and first through hole had better not be arranged between several buttons, may influence the normal use of terminal keyboard like this.The height of first through hole is identical with the height of PCB, even first through hole connects PCB.Sender on the microphone 1021 need communicate with first through hole on the PCB, to constitute sound passage.The height of the sender on the microphone 1021 is lower than the total height of microphone 1021, and promptly this sender does not connect microphone 1021, has guaranteed the seal in space.Concrete, the thickness of sender (or being called width) is less than first through hole, need make in first through hole is coated on the exit surface of sender.
Metal cover body 1022 is positioned at the PCB opposite side, can be with metal cover body 1022 and microphone 1021 relative fixed in the both sides of PCB, make in metal cover body 1022 is coated on the exit surface of first through hole of PCB.Concrete, fixed form can be welding among the utility model embodiment.Metal cover body 1022 can be made for metal material is stretched, described metal cover body 1022 is the cover body of hollow, its shape can be for circular or square, can be with it by SMT (Surface Mounted Technology, surface mounting technology) welding procedure is welded on the PCB, be equivalent to fit tightly by continuous sealing wire and PCB,, influence sound chamber seal to avoid the slit occurring.Because metal material can be made thinner, the height of metal cover body 1022 can be controlled within limits, for example this scope can be [0.6mm, 1mm], and the length of sound chamber path is generally 0.8mm comparatively suitable (referring to the height sum of the height and first through hole of metal cover body 1022 herein), its span can be [0.8mm, 1.3mm], just can control the length of sound chamber path by the height of control metal cover body 1022, so both guarantee suitable sound chamber path, do not influenced the normal use of keyboard again.(be left upper end among Fig. 2) on the metal cover body 1022 and have second through hole, third through-hole on this second through hole and the terminal enclosure joins, on both faying faces, can post foam (part shown in the dotted line among Fig. 2), to guarantee the seal between metal cover body 1022 and the terminal enclosure 1023.And sound can transmit by foam, so foam can not hinder the transmission of sound.Respective change can be done along with the position of third through-hole on the shape of metal cover body 1022 or the terminal enclosure in the position of this second through hole under the prerequisite that does not influence the technical solution of the utility model.Preferable, the thickness of this second through hole (or being called width) can be identical with the thickness of third through-hole on the terminal enclosure, so that second through hole and third through-hole splice fully.
Metal cover body 1022 can be to make by metal is stretched to form, and described metal can be ductility preferred metal such as foreign copper-nickel alloy, phosphor-copper, beryllium copper.The thickness of metal cover body 1022 (thickness that refers to metal herein, the cavity part in the middle of not comprising) preferably is no more than 0.3mm, and is preferable, the thickness of metal cover body 1022 can be made as 0.2mm.Thin by metal cover body 1022 is done, do not influencing the length that has guaranteed the height and the sound chamber path of metal cover body under the normal prerequisite of using of keyboard, the profile and the PCB of metal cover body 1022 fit tightly simultaneously, guarantee the seal in sound chamber.Saved the mobile phone inner space, can guarantee effectively that mobile phone develops to lighter, thinner, smaller and more exquisite direction.
Referring to Fig. 2, the utility model embodiment also provides a kind of portable terminal, and this portable terminal comprises terminal enclosure 1023, also comprises described PCB.Concrete, terminal described in the utility model embodiment can be a mobile phone.
Terminal enclosure 1023 is positioned at the cell phone keyboard edge, have third through-hole on the terminal enclosure 1023, second through hole on this third through-hole and the metal cover body 1022 joins, and can post foam on both faying faces, to guarantee the seal between metal cover body 1022 and the terminal enclosure 1023.And sound can transmit by foam, so foam can not hinder the transmission of sound.Preferable, terminal enclosure 1023 is the fore shell of terminal.Sender, first through hole, metal cover body 1022, second through hole and third through-hole have constituted sound chamber path.
Wherein, PCB can be positioned at the keycap below of portable terminal.PCB comprises first through hole, promptly has first through hole on the PCB, and this first through hole can have one, is positioned at the marginal position of PCB, promptly is positioned at the marginal position of cell phone keyboard.Then microphone 1021 also is positioned at the marginal position of PCB.The height of first through hole is identical with the height of PCB, and promptly first through hole has connected PCB.This first through hole communicates with the sender of microphone 1021, and in the exit surface of this first through hole was coated on by metal cover body 1022, sender, first through hole and metal cover body 1022 had constituted sound chamber cavity.
PCB comprises among the utility model embodiment: function body also comprises first through hole that is positioned on the described PCB; And the microphone that is positioned at described PCB one side, be positioned at the described PCB opposite side airtight metal cover body relative with described microphone position; Sender on the described microphone communicates with described first through hole.Metal cover body 1022 fits tightly with PCB, and in metal cover body 1022 is coated on the exit surface of first through hole fully, in first through hole is coated on the exit surface of sender fully, the faying face of second through hole and third through-hole can be placed foam, guarantee the seal of metal cover body 1022 with respect to terminal enclosure 1023, the sound chamber airtight performance that sender, first through hole and metal cover body 1022 are constituted is better, avoids occurring conversation and utters long and high-pitched sounds.Simultaneously, metal cover body 1022 can use the ductility preferred metal to make, and can do thinly as far as possible, adjusts the length of sound chamber path by the height of regulating metal cover body 1022, and is comparatively desirable with the length that guarantees sound chamber path.The sound chamber path that sender, first through hole, metal cover body 1022, second through hole and third through-hole are constituted is comparatively desirable, avoids sound too little.PCB described in the utility model embodiment is positioned at the keycap below of portable terminal simultaneously, described microphone is positioned on the described PCB, need not special sound cavity region to be set, save the terminal inner space, help terminal and develop to more frivolous, smaller and more exquisite direction at terminal inner.
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from spirit and scope of the present utility model.Like this, if of the present utility model these are revised and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes and modification interior.

Claims (14)

1. a printing board PCB comprises function body, it is characterized in that, comprising: be positioned at first through hole on the described PCB; And
Be positioned at the microphone of described PCB one side, be positioned at the described PCB opposite side airtight metal cover body relative with described microphone position;
Sender on the described microphone communicates with described first through hole.
2. PCB as claimed in claim 1 is characterized in that, described microphone fixing is at the marginal position of described PCB one side.
3. PCB as claimed in claim 2 is characterized in that, described fixed form is welding.
4. PCB as claimed in claim 1 is characterized in that, described metal cover body is fixed on the described PCB opposite side position relative with described microphone position.
5. PCB as claimed in claim 4 is characterized in that, described fixed form is welding.
6. PCB as claimed in claim 1 is characterized in that, the height of described first through hole is identical with the height of described PCB.
7. PCB as claimed in claim 1 is characterized in that, in described first through hole is coated on the exit surface of described sender.
8. PCB as claimed in claim 1 is characterized in that, in described metal cover body is coated on the exit surface of described first through hole.
9. PCB as claimed in claim 1 is characterized in that the thickness of described metal cover body is not more than 0.3mm.
10. PCB as claimed in claim 1 is characterized in that, the scope of the height of described metal cover body is [0.6mm, 1mm].
11. PCB as claimed in claim 1 is characterized in that, the scope of the height sum of described metal cover body and described first through hole is [0.8mm, 1.3mm].
12. a portable terminal comprises terminal enclosure, it is characterized in that, also comprises arbitrary described PCB as claim 1-8, wherein, has third through-hole on the described terminal enclosure; Have second through hole on the described metal cover body, described second through hole communicates with described third through-hole.
13. terminal as claimed in claim 12 is characterized in that, the faying face of described second through hole and third through-hole is equipped with foam.
14. terminal as claimed in claim 12 is characterized in that, described terminal also comprises keycap, and described PCB is positioned at described keycap below.
CN2011201258703U 2011-04-26 2011-04-26 Printed circuit board (PCB) and mobile terminal including same Expired - Lifetime CN202094955U (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2011201258703U CN202094955U (en) 2011-04-26 2011-04-26 Printed circuit board (PCB) and mobile terminal including same
PCT/CN2012/074401 WO2012146147A1 (en) 2011-04-26 2012-04-19 Pcb and mobile terminal comprising the pcb

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201258703U CN202094955U (en) 2011-04-26 2011-04-26 Printed circuit board (PCB) and mobile terminal including same

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CN202094955U true CN202094955U (en) 2011-12-28

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CN (1) CN202094955U (en)
WO (1) WO2012146147A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012146147A1 (en) * 2011-04-26 2012-11-01 中兴通讯股份有限公司 Pcb and mobile terminal comprising the pcb
CN107911963A (en) * 2017-10-27 2018-04-13 广东欧珀移动通信有限公司 The housing unit and electronic equipment of electronic equipment
CN109618251A (en) * 2018-10-24 2019-04-12 通力电梯有限公司 With the other structure of increase sound pressure level and with the sound indicator of the structure
CN117675979A (en) * 2022-08-24 2024-03-08 荣耀终端有限公司 Portable electronic device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106412170B (en) * 2016-11-04 2019-05-03 捷开通讯(深圳)有限公司 A kind of hidden microphone goes out sound structure and narrow frame mobile terminal

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201114237Y (en) * 2007-09-24 2008-09-10 中兴通讯股份有限公司 Mobile telephone sonic cavity structure
CN201123121Y (en) * 2007-11-28 2008-09-24 中兴通讯股份有限公司 Mobile terminal and speaker cavity used for the same
CN202094955U (en) * 2011-04-26 2011-12-28 中兴通讯股份有限公司 Printed circuit board (PCB) and mobile terminal including same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012146147A1 (en) * 2011-04-26 2012-11-01 中兴通讯股份有限公司 Pcb and mobile terminal comprising the pcb
CN107911963A (en) * 2017-10-27 2018-04-13 广东欧珀移动通信有限公司 The housing unit and electronic equipment of electronic equipment
CN109618251A (en) * 2018-10-24 2019-04-12 通力电梯有限公司 With the other structure of increase sound pressure level and with the sound indicator of the structure
CN117675979A (en) * 2022-08-24 2024-03-08 荣耀终端有限公司 Portable electronic device

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CX01 Expiry of patent term

Granted publication date: 20111228

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