CN206835473U - A kind of tool for stitching of MEMS microphone - Google Patents
A kind of tool for stitching of MEMS microphone Download PDFInfo
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- CN206835473U CN206835473U CN201720380181.4U CN201720380181U CN206835473U CN 206835473 U CN206835473 U CN 206835473U CN 201720380181 U CN201720380181 U CN 201720380181U CN 206835473 U CN206835473 U CN 206835473U
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- tool
- lower platen
- top board
- stitching
- lockhole
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Abstract
The utility model provides a kind of tool for stitching of MEMS microphone,It can be to the uniform pressures of PCB,So that PCB uniform forces,It is close to press pcb board,Ensure that the tin cream between pcb board and pcb board is more closely combined,The problem of avoiding the occurrence of Lou sound,Including tool top board and tool lower platen,Tool top board is surrounded by lock,Corresponding lock is provided with lockhole on tool lower platen,Lock is each passed through lockhole and tool top board is locked on tool lower platen,Lock includes check lock lever,The upper end of check lock lever is provided with rotation shifting block,Spring is set with check lock lever,Check lock lever lower end is provided with rotation closing piece,In the lower surface of tool lower platen,The rear side of corresponding lockhole is provided with locking slot,After rotation closing piece passes through lockhole,Avoid lockhole in the both ends that rotation rotation shifting block to rotate closing piece,The both ends of spring offset with the upper surface of rotation shifting block and tool lower platen be installed on so that rotating closing piece in locking slot respectively.
Description
Technical field
Surface mounting technology field is the utility model is related to, specially a kind of tool for stitching of MEMS microphone.
Background technology
In the prior art, printed in every layer of PCB surface when the multi-layer PCB stack MEMS microphone of standard is manufactured
Tin cream, by pcb board load after tool for stitching by bolt lock it is next melt tin cream by 260 DEG C of high temperature of Reflow Soldering, with reference to, it is solidifying
Gu so that pcb board is seamlessly connected with pcb board, MEMS can be made to leak sound if there is gap.
The multi-layer PCB stack MEMS tool for stitching quality of standard is hard, if up and down pressing when by around tool for stitching
Dry screw serves as whole pressure sources, compresses pcb board by lock screw, such design only has what is acted on up and down to PCB surroundings
Power, tool for stitching are fine copper material, textured hard, the advantages that being unlikely to deform, but also have its shortcoming, and for no elasticity, this is lacked
Point directly results in full wafer PCB and the tin cream of larger area not closing phenomenon occur in the region of no screw locking, all kinds of
One main operational principle of MEMS sensor is by fixed sound hole, vibrating diaphragm is produced vibration the vibration of air, this
When the distance between backboard and vibrating diaphragm displacement is produced in the presence of acoustic pressure, by change the capacitance between two-plate produce exchange
Electric signal, can be caused if tin cream does not close Lou sound it is bad, and the degree direct influence of screw tightening is to PCB sealing；And
Screw is typically only capable to lock one by one, opposite side also non-stress when causing one end of tool for stitching to compress, and PCB is pressurized uneven
Weighing apparatus, the tin cream between PCB and PCB are unable to tight closure, the problem of leakage sound occur.
Utility model content
In view of the above-mentioned problems, the utility model provides a kind of tool for stitching of MEMS microphone, it can be uniform to PCB
Pressure so that PCB uniform forces, pressing pcb board is close, ensures that the tin cream between pcb board and pcb board is more closely combined, keeps away
Exempt from the problem of leakage sound occur.
Its technical scheme is such：A kind of tool for stitching of MEMS microphone, including cooperate and be used to press pcb board
Tool top board and tool lower platen, it is characterised in that：The tool top board is surrounded by lock, and the tool pushes
The lock is corresponded on plate and is provided with lockhole, lock is each passed through the lockhole and the tool top board is locked under the tool
On pressing plate, the lock includes check lock lever, and the upper end of the check lock lever is provided with rotation shifting block, bullet is set with the check lock lever
Spring, the check lock lever lower end are provided with rotation closing piece, and in the lower surface of the tool lower platen, the rear side of the corresponding lockhole is provided with
Locking slot, after the rotation closing piece passes through the lockhole, rotate the rotation shifting block and the both ends of the rotation closing piece are kept away
Open the lockhole, the both ends of the spring offseted respectively with the upper surface of the rotation shifting block and the tool lower platen so that
The rotation closing piece is installed in the locking slot.
Further, rotary stopper portion is additionally provided with the locking slot.
Further, it is respectively equipped with the upper surface of the tool top board and the lower surface of the tool lower platen recessed
Groove, air-vent is placed with the groove.
Further, the tool lower platen is provided with alignment pin, and corresponding to the alignment pin on the tool top board sets
There is positioning hole.
Further, the tool top board is provided with the anti-reverse mounting spiral shell set from top to bottom through the tool top board
Follow closely, anti-reverse mounting hole is correspondingly provided with the tool lower platen.
Further, the both sides of the tool lower platen are respectively equipped with breach.
The tool for stitching of MEMS microphone of the present utility model, controlled by setting lock to be used as pressure applicator locking instead of screw
Tool top board and tool lower platen cause pcb board to be bonded, and rotation rotation shifting block just can quick locking tool after latching through lock
Top board and tool lower platen, avoid tighten up a screw one by one cause pressure imbalance, tin cream can not close cause leak sound the problem of,
Set spring to ensure that the tin cream between PCB and PCB is more closely combined on every lock, so as to not have around, latch
Region played by spring uniform pressure uniformly to the effect of PCB pressures, while setting of latching also causes tool for stitching
It is easy to assembly quick, without screwing screw, production efficiency is improved, sets rotary stopper portion to carry out rotation closing piece on locking slot
Rotary stopper, avoid rotating closing piece abjection, improve the reliability of tool for stitching pressing.
Brief description of the drawings
Fig. 1 is the overlooking the structure diagram of tool top board of the present utility model；
Fig. 2 is the present invention looks up structural representation of tool top board of the present utility model；
Fig. 3 is the overlooking the structure diagram of tool lower platen of the present utility model；
Fig. 4 is tool top board of the present utility model and the present invention looks up structural representation after the locking of tool lower platen；
Fig. 5 is tool top board of the present utility model and the main structure diagram after the locking of tool lower platen.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
See Fig. 1 to Fig. 5, a kind of tool for stitching of MEMS microphone of the present utility model, including cooperate and be used to press
The tool top board 1 and tool lower platen 2 of pcb board, tool top board 1 are surrounded by lock 3, corresponded on tool lower platen 2
Lock is provided with lockhole 4, and lock 3 is each passed through lockhole 4 and tool top board 1 is locked on tool lower platen 2, and lock 3 includes lock
Tight bar 31, the upper end of check lock lever 31 are provided with rotation shifting block 32, spring 33 are set with check lock lever 31, the lower end of check lock lever 31 is provided with rotation
Twist lock block 34, in the lower surface of tool lower platen 2, the rear side of corresponding lockhole 4 is provided with locking slot 6, when rotation closing piece 32 passes through lock
Behind hole 4, rotation rotation shifting block 42 causes the both ends of rotation closing piece 42 to avoid lockhole 4, and the both ends of spring 33 are respectively with rotating shifting block
34 and the upper surface of tool lower platen 2 offset and be installed on so that rotating closing piece 42 in locking slot 6, rotation is additionally provided with locking slot 6
Turn limiting section 61, be respectively equipped with groove 7 on the upper surface of tool top board 1 and the lower surface of tool lower platen 2, arranged on groove
There is air-vent 8, tool lower platen 2 is provided with alignment pin 9, and alignment pin is corresponded on tool top board 1 and is provided with positioning hole 10, on tool
Pressing plate 1 is provided with the counnter attack cartridge screw 11 set from top to bottom through tool top board 1, is correspondingly provided with tool lower platen 2 anti-
Anti- dress hole 12, the both sides that tool pushes 2 are respectively equipped with breach 5.
The tool for stitching of MEMS microphone of the present utility model, controlled by setting lock to be used as pressure applicator locking instead of screw
Tool top board and tool lower platen cause pcb board to be bonded, and rotation rotation shifting block just can quick locking tool after latching through lock
Top board and tool lower platen, avoid tighten up a screw one by one cause pressure imbalance, tin cream can not close cause leak sound the problem of,
Pocketed springs can make it that the pressure to PCB is more uniform on the check lock lever of lock, it is ensured that the tin cream between PCB and PCB
More closely combine, while the setting latched also causes the easy to assembly quick of tool for stitching, improves production efficiency, locking slot
Upper setting rotary stopper portion carries out rotary stopper to rotation closing piece, avoids rotating closing piece abjection, improves tool for stitching pressing
Reliability.
Groove is respectively equipped with the upper surface of tool top board and the lower surface of tool lower platen, and is arranged on groove
There is air-vent so that tool is thinner, and PCB heat conduction when stove processing is crossed is more preferable, improves yields.
Set alignment pin and positioning hole to coordinate on tool top board and tool lower platen, can further improve tool for stitching
Assembling speed, improves production efficiency, and the setting in counnter attack cartridge screw and anti-reverse mounting hole can be then avoided under tool top board and tool
Pressing plate it is anti-loaded, avoid faulty operation, the breach of the both sides of tool lower platen can then facilitate the separation tool after machining
Top board and tool lower platen, further improve operating efficiency.
After tool for stitching using MEMS microphone of the present utility model, the encapsulation yield of stack MEMS microphone is obvious
Lifting；No longer need manually with screwdriver by tightening, the production capacity that larger lifting is manufactured；Production cost is low, market is launched
Cycle is short, and each functional module can separately design in advance, and can be widely used in the existing general all products of stack in market, has
Effect ground reduce cost, the design cycle shortens, launch comparatively fast；Reliability is high, while fully utilizes microelectric technique, tin
The multinomial technologies such as cream solidification, have given full play to polytechnic advantage.So as to improve the combination property of system.
It is described above, the only preferable embodiment of the utility model, but the scope of protection of the utility model is not
Be confined to this, any people for being familiar with the technology in the technical scope disclosed by the utility model, the change that can readily occur in or
Replace, should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should be wanted with right
The protection domain asked is defined.
Claims (7)
1. a kind of tool for stitching of MEMS microphone, including cooperate and be used under the tool top board and tool that press pcb board
Pressing plate, it is characterised in that：The tool top board is surrounded by lock, and the lock is corresponded on the tool lower platen and is provided with
Lockhole, lock are each passed through the lockhole and the tool top board are locked on the tool lower platen, and the lock includes
Check lock lever, the upper end of the check lock lever are provided with rotation shifting block, are set with spring on the check lock lever, the check lock lever lower end is provided with
Closing piece is rotated, in the lower surface of the tool lower platen, the rear side of the corresponding lockhole is provided with locking slot, when the rotation closing piece
Through after the lockhole, rotate the rotation shifting block and cause the both ends of the rotation closing piece to avoid the lockhole, the spring
Both ends offset with the upper surface of the rotation shifting block and the tool lower platen respectively so that the rotation closing piece is installed on institute
State in locking slot.
A kind of 2. tool for stitching of MEMS microphone according to claim 1, it is characterised in that：Also set on the locking slot
There is rotary stopper portion.
A kind of 3. tool for stitching of MEMS microphone according to claim 1, it is characterised in that：The tool top board
Groove is respectively equipped with upper surface and the lower surface of the tool lower platen.
A kind of 4. tool for stitching of MEMS microphone according to claim 3, it is characterised in that：It is placed with the groove
Air-vent.
A kind of 5. tool for stitching of MEMS microphone according to claim 1, it is characterised in that：On the tool lower platen
Provided with alignment pin, the alignment pin is corresponded on the tool top board and is provided with positioning hole.
A kind of 6. tool for stitching of MEMS microphone according to claim 1, it is characterised in that：On the tool top board
Provided with the counnter attack cartridge screw for passing through the tool top board to set from top to bottom, anti-reverse mounting is correspondingly provided with the tool lower platen
Hole.
A kind of 7. tool for stitching of MEMS microphone according to claim 1, it is characterised in that：The tool lower platen
Both sides are respectively equipped with breach.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720380181.4U CN206835473U (en) | 2017-04-12 | 2017-04-12 | A kind of tool for stitching of MEMS microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720380181.4U CN206835473U (en) | 2017-04-12 | 2017-04-12 | A kind of tool for stitching of MEMS microphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206835473U true CN206835473U (en) | 2018-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720380181.4U Active CN206835473U (en) | 2017-04-12 | 2017-04-12 | A kind of tool for stitching of MEMS microphone |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107027249A (en) * | 2017-04-12 | 2017-08-08 | 无锡红光微电子股份有限公司 | A kind of tool for stitching of MEMS microphone |
| CN109262396A (en) * | 2018-10-15 | 2019-01-25 | 项孝泓 | A kind of automotive air intake welding manifold head special processing equipment |
| CN113068329A (en) * | 2021-02-27 | 2021-07-02 | 深圳市磐锋精密技术有限公司 | Microphone pressure maintaining jig for Internet of things equipment and using method thereof |
-
2017
- 2017-04-12 CN CN201720380181.4U patent/CN206835473U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107027249A (en) * | 2017-04-12 | 2017-08-08 | 无锡红光微电子股份有限公司 | A kind of tool for stitching of MEMS microphone |
| CN109262396A (en) * | 2018-10-15 | 2019-01-25 | 项孝泓 | A kind of automotive air intake welding manifold head special processing equipment |
| CN109262396B (en) * | 2018-10-15 | 2021-08-03 | 项孝泓 | Special equipment for machining head of automobile air inlet welding manifold |
| CN113068329A (en) * | 2021-02-27 | 2021-07-02 | 深圳市磐锋精密技术有限公司 | Microphone pressure maintaining jig for Internet of things equipment and using method thereof |
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