CN107770654B - An electronic device and its digital microphone fixed installation structure - Google Patents
An electronic device and its digital microphone fixed installation structure Download PDFInfo
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- CN107770654B CN107770654B CN201711166360.9A CN201711166360A CN107770654B CN 107770654 B CN107770654 B CN 107770654B CN 201711166360 A CN201711166360 A CN 201711166360A CN 107770654 B CN107770654 B CN 107770654B
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- circuit board
- elastic circuit
- microphone
- contact
- elastic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/08—Mouthpieces; Microphones; Attachments therefor
- H04R1/083—Special constructions of mouthpieces
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; 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
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
- G06F1/1684—Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675
-
- 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
- H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
- H04R2499/10—General applications
- H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
- H04R2499/10—General applications
- H04R2499/15—Transducers incorporated in visual displaying devices, e.g. televisions, computer displays, laptops
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Acoustics & Sound (AREA)
- Human Computer Interaction (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Telephone Set Structure (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
本发明公开一种电子设备的数字麦克风固定安装结构，包括主板和弹性电路板，弹性电路板一端的上表面设置有麦克风单体，弹性电路板的另一端与主板电性连接，主板上对应弹性电路板的另一端设置有若干个接触式弹片机构，且弹性电路板的另一端通过与接触式弹片机构的抵接实现与主板的电性连接。本发明所提供的数字麦克风固定安装结构，通过接触式弹片机构同时对弹性电路板和主板间的物理抵接，保证弹性电路板与主板间的稳定信号传递，使得麦克风单体的接收信号能够通过依次通过弹性电路板和接触式弹片机构传递到主板上，实现麦克风与主板间的稳定信号连接，保证麦克风的正常运行。本发明还公开一种电子设备，其有益效果如上所述。
The invention discloses a fixed installation structure for a digital microphone of an electronic device, which includes a mainboard and an elastic circuit board. A microphone unit is provided on the upper surface of one end of the elastic circuit board. The other end of the elastic circuit board is electrically connected to the main board. The main board corresponds to the elastic circuit board. The other end of the circuit board is provided with several contact spring mechanisms, and the other end of the elastic circuit board is electrically connected to the motherboard by abutting with the contact spring mechanisms. The digital microphone fixed installation structure provided by the present invention uses a contact spring mechanism to simultaneously physically contact the elastic circuit board and the main board, ensuring stable signal transmission between the elastic circuit board and the main board, so that the received signal of the microphone unit can pass through It is transmitted to the main board through the elastic circuit board and the contact shrapnel mechanism in turn to achieve a stable signal connection between the microphone and the main board and ensure the normal operation of the microphone. The invention also discloses an electronic device, the beneficial effects of which are as mentioned above.
Description
Technical Field
The present invention relates to electronic devices, and particularly to a digital microphone mounting structure for an electronic device. The invention also relates to an electronic device comprising the digital microphone fixed mounting structure.
Background
With the progress of the age, the importance of intelligent voice technology in the consumer electronics field is increasingly highlighted. The innovative application of the series of voice technology not only brings novel man-machine interaction experience to people, but also brings great convenience to life of people. The intelligent voice technology is not separated from the microphone, and the digital microphone is increasingly widely applied due to the advantages of small power consumption, high sensitivity, strong anti-interference capability and the like. Well-known microphone designs are commonly used in the consumer electronics field in the form of pins, SMT (Surface Mount Technology ), FPCB (Flexible Printed Circuit Board, flexible printed circuit board), etc.
At present, a digital microphone can be attached to a main board through an SMT (surface mount technology), but with the improvement of the requirements on the noise reduction performance of voice, a single microphone cannot meet the requirements, at least more than two microphones are often needed on the main board, a certain challenge is presented to the flexibility of mechanism design, and because the main board is thinner and thinner, the problem of capacitance sounding of a board-end power supply is also very easy to occur, the user experience is influenced after the microphone is input, so that the main board is led out in an FPCB (field programmable display) mode by often adopting a method for placing the microphone outside the main board. In the prior art, it is common practice to solder a microphone to an FPCB and then connect the FPCB with a motherboard using a board plug, thereby realizing the function of the microphone.
However, through the mode that picture peg formula FPCB links to each other with the mainboard, during processing, manual operation consuming time is longer, and the equipment process is more complicated, and because the problem such as dislocation butt joint between FPCB and the mainboard can appear probably to the reason that produces line plug is irregular, leads to the unable normal sound wave of receiving of microphone.
Therefore, how to simply and efficiently realize stable signal connection between the microphone and the motherboard and ensure normal operation of the microphone is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide a digital microphone fixed mounting structure of electronic equipment, which can simply and efficiently realize stable signal connection between a microphone and a main board and ensure normal operation of the microphone. Another object of the present invention is to provide an electronic device including the above digital microphone fixing mounting structure.
In order to solve the technical problems, the invention provides a digital microphone fixing and mounting structure of electronic equipment, which comprises a main board and an elastic circuit board, wherein a microphone monomer is arranged on the upper surface of one end of the elastic circuit board, the other end of the elastic circuit board is electrically connected with the main board, a plurality of contact spring plate mechanisms are arranged on the main board corresponding to the other end of the elastic circuit board, and the other end of the elastic circuit board is in electrical connection with the main board through abutting connection with the contact spring plate mechanisms.
Preferably, the bottom surface of the other end of the elastic circuit board is provided with a plurality of contact surfaces for respectively contacting with the contact spring plate mechanisms; the contact spring plate mechanism comprises a base welded on the main board and a contact head used for being contacted with each contact surface, and the contact head is bent into an arc shape and has elasticity.
Preferably, an adhesive layer for enhancing connection stability with the main board is arranged on the bottom surface of one end of the elastic circuit board.
Preferably, the sound pickup device further comprises a sealing shell which is arranged on the upper surface of one end of the elastic circuit board, is coated outside the microphone unit and is used for forming air sealing for the microphone unit, and a sound pickup channel which is used for enabling external sound waves to be transmitted into the sound inlet cavity of the microphone unit according to a preset path is arranged on the sealing shell.
Preferably, a gasket for preventing air leakage is circumferentially arranged at the opening of the pickup passage on the upper surface of the seal housing.
The invention also provides electronic equipment, which comprises a bottom shell, a top shell and a digital microphone fixed mounting structure, wherein the top shell is covered with the bottom shell; the mainboard is fixed on the drain pan, be provided with on the inner wall of top shell and be used for the installation the mounting groove of elastic circuit board one end, and be used for compressing tightly the support frame of elastic circuit board other end, be provided with a plurality of be used for with the locating hole matched with that reserves on the other end of elastic circuit board reference column on the support frame, through the lid of top shell and drain pan compresses tightly the other end of elastic circuit board, and makes it with contact shell fragment mechanism looks butt.
Preferably, a sound guide hole for guiding external sound waves into the sound guide hole is formed in the groove top wall of the mounting groove, corresponding to the sound inlet cavity of the microphone unit, and the sound guide hole is tightly pressed around the sound guide hole in a sealing mode through a gasket.
The invention provides a digital microphone fixing and mounting structure of electronic equipment, which mainly comprises a main board, an elastic circuit board, a microphone monomer and a contact spring plate mechanism. The microphone unit is arranged on the upper surface of one end of the elastic circuit board and is used for receiving external sound waves, the other end of the elastic circuit board is electrically connected with the main board, a plurality of contact spring plate mechanisms are arranged on the main board corresponding to the other end of the elastic circuit board, and the other end of the elastic circuit board is in butt joint with the contact spring plate mechanisms to realize the electrical connection with the main board. Therefore, the upper end and the lower end of each contact spring plate mechanism are respectively abutted against the other ends of the main board and the elastic circuit board, and under the action of the pressing force of the two ends, the other ends of the main board and the elastic circuit board are kept in tight physical connection through the contact spring plate mechanism, so that stable point connection is ensured. Therefore, according to the digital microphone fixed mounting structure provided by the invention, the physical butt joint between the elastic circuit board and the main board is realized through the contact type spring plate mechanism, so that stable signal transmission between the elastic circuit board and the main board is ensured, the receiving signals of the microphone monomers can be transmitted to the main board through the elastic circuit board and the contact type spring plate mechanism in sequence, stable signal connection between the microphone and the main board is realized, and the normal operation of the microphone is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;
FIG. 2 is a schematic view of a part of the structure of FIG. 1;
FIG. 3 is a bottom view of FIG. 2;
FIG. 4 is a schematic diagram of a specific structure of the contact spring mechanism shown in FIG. 1;
FIG. 5 is a schematic view showing a specific structure of the hermetic case shown in FIG. 1;
FIG. 6 is a diagram showing an installation environment of a digital microphone in an electronic device according to an embodiment of the present invention;
fig. 7 is another view of fig. 6.
Wherein, in fig. 1-7:
the microphone comprises a main board-1, an elastic circuit board-2, a contact surface-201, a positioning hole-202, a microphone unit-3, a bottom shell-4, a contact spring plate mechanism-5, a base-501, a contact head-502, a flexible flat cable-6, an adhesive layer-7, a sealing shell-8, a pickup channel-801, a gasket-802, a top shell-9, a sound guide hole-901, a mounting groove-902, a support frame-903 and a positioning column-904.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 and fig. 2, fig. 1 is a schematic overall structure of an embodiment of the present invention, as shown in fig. 2, and fig. 2 is a schematic partial structure of fig. 1.
In one embodiment of the present invention, a digital microphone fixing structure of an electronic device mainly includes a main board 1, an elastic circuit board 2, a microphone unit 3 and a contact spring mechanism 5.
Wherein, the upper surface of one end of the elastic circuit board 2 is provided with a microphone unit 3 for receiving external sound waves. In general, the microphone unit 3 may be soldered to the elastic circuit board 2, and a microphone chip or other structure is provided in the microphone unit 3, so as to be in signal connection with the elastic circuit board 2. The other end of the elastic circuit board 2 is electrically connected with the main board 1, and each contact spring piece mechanism 5 is arranged on the main board 1 and is positioned between the main board 1 and the other end of the elastic circuit board 2. The upper end and the lower end of each contact spring plate mechanism 5 are respectively abutted against the other ends of the main board 1 and the elastic circuit board 2, and under the action of the pressing force of the two, the other ends of the main board 1 and the elastic circuit board 2 are kept in tight physical connection through the contact spring plate mechanisms 5, so that stable point connection is ensured.
Thus, the digital microphone fixed mounting structure provided by the embodiment ensures stable signal transmission between the elastic circuit board 2 and the main board 1 through the physical butt between the elastic circuit board 2 and the main board 1 by the contact type spring plate mechanism 5, so that the receiving signal of the microphone 3 can be transmitted to the main board 1 through the elastic circuit board 2 and the contact type spring plate mechanism 5 in sequence, stable signal connection between the microphone and the main board 1 is realized, and normal operation of the microphone is ensured.
Furthermore, the flexible flat cable 6 can be used for realizing signal connection between one end of the elastic circuit board 2 and the other end of the elastic circuit board 2, so that the relative position relationship between one end of the elastic circuit board 2 and the other end of the elastic circuit board can be conveniently adjusted, and the flexible flat cable is more suitable for electronic equipment with complex installation space and narrow installation environment. Of course, signal connection CAN be realized between two ends of the elastic circuit board 2 through a cable, a data plug, wireless communication and other modes, such as a USB interface, a CAN bus, a WIFI module and the like.
In addition, considering that the microphone unit 3 is disposed on the upper surface of one end of the elastic circuit board 2, the load of the elastic circuit board 2 is relatively large, and for this reason, the adhesive layer 7 is disposed on the bottom surface of the elastic circuit board 2, and the connection stability between the two can be effectively improved by the surface connection between the adhesive layer 7 and the main board 1.
As shown in fig. 3, fig. 3 is a bottom view of fig. 2.
Furthermore, considering that a plurality of contact spring mechanisms 5, such as 2 to 4, may be simultaneously disposed on the motherboard 1, for convenience, the contact spring mechanisms 5 are simultaneously connected with the other end of the elastic circuit board 2 by signals, and in this embodiment, a plurality of contact surfaces 201 are disposed on the bottom surface of the other end of the elastic circuit board 2, and each contact surface 201 is respectively used for contacting with a corresponding contact spring mechanism 5, so as to avoid a situation of disordered connection. The contact surface 201 may be generally rectangular, although it may be circular.
As shown in fig. 4, fig. 4 is a schematic diagram of a specific structure of the contact spring mechanism shown in fig. 1.
In a preferred embodiment with respect to the contact spring mechanism 5, the contact spring mechanism 5 may specifically comprise a base 501 and a contact 502. Wherein the base 501 is disposed on the motherboard 1, and the contact 502 is disposed on the base 501, the contact 502 is mainly used for contacting with the bottom surface of the other end of the elastic circuit board 2. Specifically, the contact 502 can be bent into an arc shape, and when contacting the elastic circuit board 2, the extrusion stress can be effectively reduced, and the stress concentration phenomenon can be avoided. The contact 502 is elastic as a whole, and when the digital microphone module is assembled into the electronic device, both ends of the contact 502 and the base 501 are respectively subjected to the pressure of the elastic circuit board 2 and the main board 1, so that the contact 502 is elastically deformed, and further the contact 502 is kept under the pressing force of the elastic circuit board 2 and the pressing force of the base 501 and the main board 1 by means of the resilience force.
Of course, the specific structure of the contact spring mechanism 5 is not limited to the base 501 and the contact 502, and other modes such as a mode of connecting the elastic circuit board 2 with the main board 1 through a plurality of flexible rods are also possible.
As shown in fig. 5, fig. 5 is a specific structural schematic view of the hermetic case shown in fig. 1.
In addition, considering the receiving quality of the microphone 3 to the external sound wave, the interference of the air flow and the noise is avoided, and the sealing shell 8 is additionally arranged on the elastic circuit board 2, and the sealing shell 8 is mainly used for forming air sealing for the microphone 3. In particular, the sealing case 8 may be a closed rectangular frame, such as a rubber block, and is inversely fastened to the elastic circuit board 2, and covers the microphone unit 3. Meanwhile, in order to ensure that external sound waves can be normally transmitted to the internal microphone unit 3 through the sealing shell 8, in this embodiment, a pickup channel 801 is formed on the sealing shell 8, and a path of the pickup channel 801 can be designed according to a specific shape of the sealing shell 8, so that when the external sound waves reach the sealing shell 8, the external sound waves are only transmitted to a sound inlet cavity of the internal microphone unit 3 along a preset path formed by the pickup channel 801.
Further, in this embodiment, a ring of gasket 802 is further disposed around the opening of the pickup channel 801 of the sealed housing 8, and the gasket 802 may be specifically configured as a rubber ring, and may be mutually pressed with the housing 9 of the electronic device, which is mainly used to improve the air tightness of the opening of the pickup channel 801, so as to prevent a sharp sound source from being formed due to air leakage.
As shown in fig. 6, fig. 6 is an installation environment of a digital microphone in an electronic device according to an embodiment of the present invention.
The present embodiment also provides an electronic device, which mainly includes a bottom case 4, a top case 9 covering the bottom case 4, and a digital microphone fixing structure installed between the bottom case 4 and the top case 9.
The fixed mounting structure of the digital microphone is the same as that described above, and will not be described here again.
As shown in fig. 7, fig. 7 is another schematic view of fig. 6.
The bottom shell 4 is mainly used for fixing the main board 1, the top shell 9 is a main structure of the electronic device and is mainly used for accommodating and installing other parts, and for conveniently installing the parts of the digital microphone fixing and installing structure, the occupation of the internal space is reduced, and the installation groove 902, the support frame 903 and the positioning column 904 are arranged on the inner wall of the top shell 9.
Of these, the mounting groove 902 is mainly used for mounting one end of the elastic circuit board 2, and of course, since the microphone unit 3 and the seal housing 8 are provided on one end of the elastic circuit board 2, the mounting groove 902 can be used for mounting the seal housing 8. The supporting frame 903 is generally used for installing the other end of the elastic circuit board 2, and after the one end of the elastic circuit board 2 is installed in place, the supporting frame 903 can further compress the elastic circuit board 2, so that the other end of the elastic circuit board 2 maintains a pretightening force on the contact spring mechanism 5. In order to facilitate positioning and mounting of the other end of the elastic circuit board 2 in the top shell 9, in this embodiment, a plurality of positioning holes 202 are preset on the edge of the other end of the elastic circuit board 2, and meanwhile, positioning columns 904 with the same number and distribution are additionally arranged on the supporting frame 903, so that positioning and mounting of the elastic circuit board 2 can be conveniently realized through cooperation of each positioning column 904 and the positioning hole 202, and meanwhile, connection stability is ensured. By the arrangement, the other end of the elastic circuit board 2 can be pressed by the cover pressing force of the top shell 9 and the bottom shell 4, and can be stably abutted against each contact spring piece mechanism 5.
In addition, in this embodiment, a sound guide hole 901 is provided in the top wall of the mounting groove 902, and the sound guide hole 901 is provided in the mounting groove 902 at a position corresponding to the sound inlet chamber position of the microphone unit 3, mainly for transmitting external sound waves to the microphone unit 3 inside. Here, it is preferable that the sound guide hole 901 be provided at a position corresponding specifically to the sound pickup passage 801 on the seal housing 8.
It should be noted that, the electronic device in this embodiment generally refers to a notebook computer, a tablet computer, a mobile phone, etc., and is certainly applicable to other electronic products with a voice interaction function.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711166360.9A CN107770654B (en) | 2017-11-21 | 2017-11-21 | An electronic device and its digital microphone fixed installation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711166360.9A CN107770654B (en) | 2017-11-21 | 2017-11-21 | An electronic device and its digital microphone fixed installation structure |
Publications (2)
| Publication Number | Publication Date |
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| CN107770654A CN107770654A (en) | 2018-03-06 |
| CN107770654B true CN107770654B (en) | 2024-02-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711166360.9A Active CN107770654B (en) | 2017-11-21 | 2017-11-21 | An electronic device and its digital microphone fixed installation structure |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108777835A (en) * | 2018-05-30 | 2018-11-09 | 上海与德通讯技术有限公司 | The assembling structure and terminal device of microphone assembly, mainboard and shell |
| CN111107454B (en) * | 2018-10-26 | 2024-11-22 | 深圳市三诺声智联股份有限公司 | MIC sealed assembly structure, installation method and terminal equipment |
| CN109451381B (en) * | 2018-11-30 | 2024-07-02 | 歌尔科技有限公司 | Microphone sealing structure |
| CN110519423A (en) * | 2019-08-16 | 2019-11-29 | 上海摩软通讯技术有限公司 | A kind of production method of mobile terminal and shell, shell |
| CN111510539A (en) * | 2020-04-24 | 2020-08-07 | Oppo广东移动通信有限公司 | Microphone channel structure and electronic equipment |
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| CN107770654A (en) | 2018-03-06 |
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