CN201018660Y - Solder reflow resistant digitization electret microphone - Google Patents
Solder reflow resistant digitization electret microphone Download PDFInfo
- Publication number
- CN201018660Y CN201018660Y CNU2007200191254U CN200720019125U CN201018660Y CN 201018660 Y CN201018660 Y CN 201018660Y CN U2007200191254 U CNU2007200191254 U CN U2007200191254U CN 200720019125 U CN200720019125 U CN 200720019125U CN 201018660 Y CN201018660 Y CN 201018660Y
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- China
- Prior art keywords
- microphone
- printed substrate
- breadboard
- appendix
- wiring board
- 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
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Abstract
The utility model discloses a solder-reflow resistant digitize electret microphone, which comprises a microphone shell. A closed space for installing microphone electronic components is formed by the microphone shell and a microphone printing breadboard. An electric conduction electrode utilized for exporting digital signals from microphone is arranged on the surface of the microphone printing breadboard, an additional part of the breadboard which is stretching out along the surface of the microphone printing breadboard. The printing breadboard and the additional part of the breadboard are unibody structure, a leadout electrode which is electrically fixed with the electric conduction electrode is arranged on the additional part of the breadboard; because of the arrangement of the additional part, the arrangements of a plurality of electric conduction electrodes become much more easier, the distance between the conduction electrodes is not limited, the production and the installation are easy, the short circuit caused by the short distance between the conduction electrodes is completely overcome, the technique of the digital microphone is widely applied; and the solder-reflow technology is much more easier and available in the process of installing the microphone.
Description
Technical field
The utility model relates to a kind of digital microphone.
Background technology
The printed substrate (PCB) of the common reflux-resisting welded electret microphone of simulation is gone up only needs two electrodes, therefore in the circle of the Φ 2.8mm that these two electrodes can directly be done at PCB when making the following product of Φ 4mm, sees Fig. 4.Make and client when using at microphone, can effectively two electrode isolation be opened, be unlikely to short circuit.The PCB of reflux-resisting welded digital electret microphone must have 4 electrodes (monophony output digital signal) or 5 electrodes (dual track output digital signal), when making Φ 4mm and following microphone, arrange 4 or 5 electrodes in the circle in Φ 2.8mm, electrode pads must be less than Φ 0.6mm, distance between the solder joint is just less than 0.2mm, the client is easy to cause the short circuit of interpolar in use like this, and influence is used.
The utility model content
Technical problem to be solved in the utility model provide a kind of can not cause intereelectrode short-circuit, signal transmission accurately, install and fix reflux-resisting welded digital electret microphone easily.
For solving the problems of the technologies described above, the technical solution of the utility model is: reflux-resisting welded digital electret microphone, comprise microphone case, be installed in the sound electric signal transducer in the described microphone case, the analog signal conversion that described sound electric signal transducer is produced is the A/D converter of digital signal, form the microphone printed substrate of the enclosure space that the microphone electronic devices and components are installed with described microphone case, the outer surface of described microphone printed substrate is provided with the conductive electrode for microphone output digital signal, described printed substrate is provided with along the outward extending wiring board appendix of described printed wire board plane, described printed substrate and described wiring board appendix are integral structure, and described wiring board appendix is provided with the extraction electrode that is electrically connected with described conductive electrode.
As optimized technical scheme, described wiring board appendix is two, is symmetricly set on the both sides of described printed substrate respectively.
As optimized technical scheme, described microphone case is provided with the edge sealing of fixing described microphone printed substrate, also is provided with on the described microphone case for the outward extending opening of described wiring board appendix.
As optimized technical scheme, described microphone printed substrate is rounded or square.
Owing to adopted technique scheme, reflux-resisting welded digital electret microphone, comprise microphone case, be installed in the sound electric signal transducer in the described microphone case, the analog signal conversion that described sound electric signal transducer is produced is the A/D converter of digital signal, form the microphone printed substrate of the enclosure space that the microphone electronic devices and components are installed with described microphone case, the outer surface of described microphone printed substrate is provided with the conductive electrode for microphone output digital signal, described printed substrate is provided with along the outward extending wiring board appendix of described printed wire board plane, described printed substrate and described wiring board appendix are integral structure, and described wiring board appendix is provided with the extraction electrode that is electrically connected with described conductive electrode; The setting of wiring board appendix, make the layout of a plurality of conductive electrodes become very easy, interelectrode distance is unrestricted, makes, installs simple, overcome former microphone fully because of the nearer short circuit that causes of conductive electrode anode-cathode distance, the technology of digital microphone is applied; The utility model makes reflow soldering process become easy, feasible in the microphone process is installed simultaneously.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the electrode schematic diagram of the utility model embodiment PCB;
Fig. 3 is the schematic diagram of the utility model embodiment microphone case (not flange);
Fig. 4 is the structural representation of the utility model background technology PCB;
Fig. 5 is the structural representation of the utility model background technology microphone.
Embodiment
As Fig. 1, shown in Figure 2, reflux-resisting welded digital electret microphone, comprise microphone case 1, be installed in the sound electric signal transducer in the described microphone case, the analog signal conversion that described sound electric signal transducer is produced is the A/D converter of digital signal, form the microphone printed substrate 2 of the enclosure space that the microphone electronic devices and components are installed with described microphone case 1, the outer surface of described microphone printed substrate 2 is provided with the conductive electrode 31 for microphone output digital signal, described printed substrate 2 is provided with along the outward extending wiring board appendix 21 in described printed substrate 2 planes, described printed substrate 2 is an integral structure with described wiring board appendix 21, and described wiring board appendix 21 is provided with the extraction electrode 32 that is electrically connected with described conductive electrode 31.
Described wiring board appendix 21 is two, is symmetricly set on the both sides of described printed substrate 2 respectively, and this structure circuit is provided with simply, installs easy to make, and comparatively firm on equipment after installing, shock resistance is stronger; Certainly, adopt 1 or 3,4 appendix 21 also can solve technical problem of the present utility model, also within protection range of the present utility model.
Described microphone case 1 is provided with the edge sealing 11 of fixing described microphone printed substrate 2, also is provided with on the described microphone case 1 for described wiring board appendix 21 outward extending openings 12.
Described microphone printed substrate 2 is rounded.
As shown in Figure 5, common reflux-resisting welded microphone is taken turns roller-compaction to the edge sealing of metal shell with edge sealing, reaches the purpose of encapsulation.In reflux-resisting welded digital electret microphone, owing to adopted above special-shaped pcb board, so original with the rotation of edge sealing wheel roll edge sealing since be subjected to special-shaped PCB extention influence and can't edge sealing, lateral opening for this shell, opening part passes for the appendix 21 of PCB, and edge sealing also no longer adopts original edge sealing wheel rotation to roll, but direct press seal.
Claims (4)
1. reflux-resisting welded digital electret microphone, comprise microphone case (1), be installed in the sound electric signal transducer in the described microphone case, the analog signal conversion that described sound electric signal transducer is produced is the A/D converter of digital signal, with described microphone case (1) the microphone printed substrate (2) of the enclosure space of microphone electronic devices and components form to be installed, the outer surface of described microphone printed substrate (2) is provided with the conductive electrode (31) for microphone output digital signal, it is characterized in that: described printed substrate (2) is provided with along described printed substrate (2) the outward extending wiring board appendix in plane (21), described printed substrate (2) is an integral structure with described wiring board appendix (21), and described wiring board appendix (21) is provided with the extraction electrode (32) that is electrically connected with described conductive electrode (31).
2. reflux-resisting welded digital electret microphone as claimed in claim 1 is characterized in that: described wiring board appendix (21) is two, is symmetricly set on the both sides of described printed substrate (2) respectively.
3. reflux-resisting welded digital electret microphone as claimed in claim 1, it is characterized in that: described microphone case (1) is provided with the edge sealing (11) of fixing described microphone printed substrate (2), also is provided with on the described microphone case (1) for the outward extending opening of described wiring board appendix (21) (12).
4. reflux-resisting welded digital electret microphone as claimed in claim 1 is characterized in that: described microphone printed substrate (2) is rounded or square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200191254U CN201018660Y (en) | 2007-03-07 | 2007-03-07 | Solder reflow resistant digitization electret microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200191254U CN201018660Y (en) | 2007-03-07 | 2007-03-07 | Solder reflow resistant digitization electret microphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201018660Y true CN201018660Y (en) | 2008-02-06 |
Family
ID=39059162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200191254U Expired - Lifetime CN201018660Y (en) | 2007-03-07 | 2007-03-07 | Solder reflow resistant digitization electret microphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201018660Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101022683B (en) * | 2007-03-07 | 2011-04-27 | 山东共达电声股份有限公司 | Reflux-resisting welded digital electret microphone |
-
2007
- 2007-03-07 CN CNU2007200191254U patent/CN201018660Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101022683B (en) * | 2007-03-07 | 2011-04-27 | 山东共达电声股份有限公司 | Reflux-resisting welded digital electret microphone |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 69, Longquan street, Fangzi District, Shandong, Weifang Province, 261200 Patentee after: Shandong Gettop Acoustic Co.,Ltd. Address before: 69, Longquan street, Fangzi District, Shandong, Weifang Province, 261200 Patentee before: Weifang Gongda Telecommunications Co., Ltd. |
|
| C56 | Change in the name or address of the patentee |
Owner name: SHANDONG GONGDA ELECTROACOUSTIC CO., LTD. Free format text: FORMER NAME: WEIFANG GONGDA TELECOMMUNICATION CO., LTD. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20080206 Effective date of abandoning: 20070307 |