CN106385648B - Patch type earphone line control microphone - Google Patents
Patch type earphone line control microphone Download PDFInfo
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- CN106385648B CN106385648B CN201510637896.9A CN201510637896A CN106385648B CN 106385648 B CN106385648 B CN 106385648B CN 201510637896 A CN201510637896 A CN 201510637896A CN 106385648 B CN106385648 B CN 106385648B
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- circuit board
- vibrating diaphragm
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- stomata
- pole plate
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Abstract
The invention discloses a kind of patch type earphone line control microphones, including shell, bottom of shell inner cavity is equipped with metal polar plate, pole plate is equipped with pole plate stomata, insulation gasket ring is equipped with above pole plate, the upper surface of insulation gasket ring, which tenses, is pasted with vibrating diaphragm, diaphragm surface nickel plating, becket is equipped with above vibrating diaphragm, circuit board is equipped with above becket, circuit board is equipped with circuit board stomata, shell upper by way of to in-flanges by above-mentioned each compressing parts together, wiring copper sheet is equipped on the outside of circuit board, outer casing bottom is equipped with airflow hole corresponding with diaphragm position, diversion pipe corresponding with circuit board stomata is welded on circuit board, water conservancy diversion tube end is installed with two symmetrically arranged outwardly extending copper sheets, copper sheet is welded on the inside of circuit board, diversion pipe is tilted towards becket inner wall middle part.Structurally reasonable, compact, sensitivity is higher, and rupture of membranes is not easy in gas shock big by sound, long service life, has high temperature resistant property, can be processed using solder reflow device, and manipulation sound is convenient, output is stablized.
Description
Technical field
The present invention relates to a kind of patch type earphone line control microphones.
Background technique
Microphone, as the term suggests it is exactly to perceive the variation of sound air-flow, and convert corresponding switch for air-flow variation
The sensor of signal output.Traditional microphone is to drive magnetic switch to constitute by silicone rubber membrane at present, when there is air-flow to flow through silicon
When rubber membrane, silicone rubber membrane shakes, to trigger magnetic switch movement, represents air-flow transformation by magnetic switch output
On-off model, traditional microphones structure is simple, easy to use, very widely used.Traditional microphones are disadvantageous in that:
Volume is big, and sensitivity is low, is unsuitable for the applications more demanding in induction sensitivity.
Currently, microphone is applied to online transaudient field more, such as on the earphone cable of mouth.When user wears
When earphone with function of speaking, the air-flow spoken can be transmitted near microphone, and the air-flow spoken can drive the vibration of microphone
Film vibrates, and the electric signal on such microphone will follow sound variation, to play induction sound, conversion voice signal, pass
Pass the effect of voice signal.For user, different people has different habits.It whispers for example, somebody likes gulping down
Words, onlying demand other side can hear, for such user, general microphone, which is installed on earphone cable, to be met the requirements.
And somebody then likes speaking up, and for the purpose of capable of being caught, be understood by other side, especially speaks under noisy environment
When it is more obvious.The frequency range for perceiving sound this requires microphone is wider, amplitude is larger, and microphone is also required to need to produce
Raw larger range of inductive signal, and this must increase its internal diaphragm oscillations amplitude by loudly propagandaing directed to communicate to microphone come real
It is existing.Due to microphone on earphone generally apart from oral area it is closer, big mouth, which is spoken, causes larger air-flow that can promote microphone interior vibrating diaphragm
Moment quick violent oscillatory motion, this frequently can lead to the rupture of vibrating diaphragm, also result in the damage of microphone, substantially reducing makes
Use the service life.In addition, conventional earphone is that directly common microphone is fixed on earphone cable with microphone, not only it is not connected firmly and leans on,
And voice signal output control member is not used very inconvenient.
Currently, the production of most of microphones is all based on manual operations, production efficiency is low.In order to improve production effect
Rate, reduces cost, occurs reflow soldering process and solder reflow device in the market.But solder reflow device needs to use in welding
Microphone and the wiring board to be welded are pasted together by solder(ing) paste, then melt solder(ing) paste with high temperature hot gas, to play fast
The effect of speed welding.But current microphone construction is connection capillary structure, is not only needed when being welded using solder reflow device
It is attached the inserting of capillary and pad, it is also necessary to smear solder(ing) paste, this requires manual operation, and working efficiency is still low
Under, therefore the microphone of traditional structure is not appropriate for reflow soldering process.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of structurally reasonable, compact, sensitivity in view of the above deficiencies
It is higher, and rupture of membranes is not easy in gas shock big by sound, long service life has high temperature resistant property, can use Reflow Soldering
Equipment processing, manipulation sound is convenient, exports a kind of stable patch type earphone line control microphone.
In order to solve the above technical problems, this patch type earphone line control microphone is structurally characterized in that: including shell, in shell
Bottom of chamber portion is equipped with metal polar plate, and pole plate is equipped with pole plate stomata, and insulation gasket ring is equipped with above pole plate, and the upper surface for the gasket ring that insulate is drawn
It is tightly pasted with vibrating diaphragm, diaphragm surface nickel plating, vibrating diaphragm top is equipped with becket, circuit board is equipped with above becket, is set on circuit board
Have a circuit board stomata, shell upper by way of to in-flanges by above-mentioned each compressing parts together, be equipped on the outside of circuit board
Wiring copper sheet, outer casing bottom are equipped with airflow hole corresponding with diaphragm position, are welded on circuit board corresponding with circuit board stomata
Diversion pipe, water conservancy diversion tube end are installed with two symmetrically arranged outwardly extending copper sheets, and copper sheet is welded on the inside of circuit board, water conservancy diversion
Pipe further includes PWB plate towards inclination in the middle part of becket inner wall, and PWB plate is equipped with two pads corresponding with wiring copper sheet, pad
It is pasted together by solder(ing) paste and wiring copper sheet, PWB plate is equipped with the venthole of several close pad settings, welds on PWB plate
It is connected to capacitor, diode and the switch in parallel with two pads, switch positive terminal is electrically connected with electrode line and power supply line, electrode line
In be serially connected with output capacitance, be serially connected with load resistance in power supply line.
The patch type earphone line control microphone of this structure be realized by diaphragm-vibrating type contact structure it is structurally reasonable, it is small in size
Ingeniously, sensitivity is higher, and rupture of membranes is not easy in gas shock big by sound, long service life, has high temperature resistant property, can make
It is processed with solder reflow device, manipulation sound is convenient, it is stable to export.
Diaphragm-vibrating type contact structure mainly includes the vibrating diaphragm and metal polar plate of setting in the shell, is arranged between vibrating diaphragm and pole plate
It is pasted on gasket ring side after thering is insulation gasket ring, the avris of vibrating diaphragm to tense, in this way, vibrating diaphragm is just in plane under the support of gasket ring
Shape, vibrating diaphragm and the metal polar plate parallel interval under the support of insulation gasket ring come.Have to constitute vibrating diaphragm and metal polar plate
The electrical structure of contact function, nickel plating on vibrating diaphragm, by becket and circuit board electrical connection, pole plate passes through outer the nickel coating of vibrating diaphragm
Shell also be electrically connected with circuit board composition, in this way, vibrating diaphragm and pole plate be just all together with circuit board electrical connection, vibrating diaphragm and pole plate composition
Two contacts of normal open switch.Vibrating diaphragm is triggered in order to facilitate air-flow, metal polar plate is equipped with the pole plate gas of perforation pole plate two sides
Hole is also equipped with the circuit board stomata of perforation circuit board two sides on circuit board, in this way, vibrating diaphragm passes through circuit far from the side of pole plate
Plate stomata is connected with ambient atmosphere, and the vibrating diaphragm side adjacent with pole plate is also communicated with atmosphere by pole plate stomata and airflow hole, when
When outer gas stream is flowed by circuit board stomata to airflow hole direction, air-flow will push vibrating diaphragm mobile to the direction of pole plate, work as vibration
When the nickel coating and metal polar plate of film surface are touched together, vibrating diaphragm is just constituted with pole plate and is electrically connected, and circuit board passes through wiring
Copper sheet sends this switching signal to external circuit, to realize the effect of sensitive perception air-flow.
In the present invention, it is welded with diversion pipe corresponding with circuit board stomata on the inside of circuit board, diversion pipe is towards becket
It is obliquely installed in the middle part of inner wall, the air-flow for thus flowing through circuit board stomata, which is provided with towards the inclination in the middle part of becket inner wall, leads
To effect.When speaker speaks up, the strong air flow for flowing through circuit board stomata can be under the guiding role of diversion pipe to gold
Belong to flowing in the middle part of ring, or is flowed outward in the middle part of becket inner wall through diversion pipe.In this way, the path that flows through of air-flow is exactly: electricity
Road plate stomata, diversion pipe, becket inner wall middle part, pole plate stomata, are a curved C-shaped paths.And conventional patch formula earphone
The circulation path of line traffic control microphone interior air-flow is: circuit board stomata, pole plate stomata, is the straight line path being directly connected to.Cause
This, air flow path of the invention is longer than the air flow path of conventional patch formula earphone line control microphone, and it is strong to play mitigation air-flow
The effect of degree makes air-flow not generate the big vibration of moment to vibrating diaphragm, therefore will not tear vibrating diaphragm, effective protection vibrating diaphragm, greatly
Service life is extended greatly.Since the air-flow total amount for entering of the invention is constant, the Oscillation Amplitude of vibrating diaphragm is identical, the letter of generation
It is number identical.
In the present invention, water conservancy diversion tube end is installed with two symmetrically arranged outwardly extending copper sheets, and diversion pipe is exactly logical
The two copper sheets are crossed to be fixedly welded on the inside of circuit board.In this way, connection welding is few, easy to operate, it is firm to connect.
The invention also includes the PWB plate being fixedly mounted on earphone cable, PWB plate is equipped at least two pads, pad with
Corresponding matching above and below wiring copper sheet.Therefore in production, only need to solder(ing) paste be first applied on wiring copper sheet or is applied to pad
On, then hold shell and PWB plate wiring copper sheet and pad is corresponding in opposite directions close to being until shell turn-up portion is withstood on PWB plate
Only, it will pass through solder(ing) paste so each component of shell and its inside has been pasted on PWB plate, the present invention be finally put into reflux
Soldering equipment, the hot-air in solder reflow device can melt solder(ing) paste into tin soldering liquid, will be by corresponding wiring after tin soldering liquid is cooling
Copper sheet and pad are fixed together, and not only realize be fixedly mounted on shell and its internal component on PWB plate also in this way
Circuit board and PWB are realized into electrical connection, operated very simple.In addition, in the present invention, being welded on PWB plate and being welded with two
Capacitor, diode and the switch of disk parallel connection, be provided with the effect of capacitor and diode first is that filters out impurity signal, makes signal
It exports apparent.For convenience of narration, the both ends of switch are respectively defined as positive terminal and negative pole end.Wherein, switch positive terminal electricity
It is connected with electrode line and power supply line, power supply line and switch negative pole end are electrically connected by the way that earphone cable is corresponding with external power supply positive and negative polarities
It connects, for powering to circuit board.When power supply starts, diode has the function of stabilized power supply signal, this is the work of diode
With it two.Two output ends of the negative pole end of electrode line and switch as inductive signal export sound electric signal outward.In this hair
In bright, it is serially connected with output capacitance in electrode line, is used for steady output signal.Load resistance is serially connected in power supply line, for limiting
Electric current and balanced load.Since switch in parallel is at two pad both ends, when the switch is closed, capacitor starts to discharge, simultaneously
Power supply is shorted, and is equivalent to have sent a control signal or request signal to peripheral circuit in this way, is such as opened and is received sound
The signals such as inductive signal.When switch restores off state, circuit board starts to export voice signal outward, therefore the present invention is not only
It can be fixedly attached on earphone signal line, and there is control semiotic function.
In the present invention, PWB plate is equipped with several ventholes, and venthole penetrates through inside and outside PWB plate.Because circuit board is logical
It crosses after solder(ing) paste pastes on PWB plate, will form a relatively closed space between circuit board and PWB plate.Venthole is set
Purpose be so that PWB plate two sides is ventilated, even if also circuit board and it is extraneous ventilate, be not only advantageous to hot-air energy when Reflow Soldering in this way
Smoothly touch solder(ing) paste, moreover it is possible to provide drain passage for thermal current, substantially increase the circulation of air.In the present invention,
Venthole is arranged close to pad, and the flue gas that solder(ing) paste can be enable to melt in this way is discharged quickly through venthole, plays quickly
Pressure release effect, protects the safety of each component of interior of shell especially vibrating diaphragm.
As an improvement, becket outer sheath is equipped with dead ring.
Becket contacts and short-circuit with outer casing inner wall in order to prevent, and becket outer sheath is equipped with dead ring, and dead ring can be with
Becket and shell are isolated, to improve the stability of this patch type earphone line control microphone.
As a further improvement, being pasted with Air Filter on the outside of outer casing bottom.
The impurity in air-flow is entered inside this patch type earphone line control microphone by airflow hole in order to prevent, at shell bottom
It is pasted with Air Filter on the outside of portion, impurity can be filtered out after Air Filter is set, guarantee the sensitive of this patch type earphone line control microphone
Degree and service life.
As an improvement, the diversion pipe is the big conical tube in the small inner end in outer end.
Because diversion pipe is the big conical tube in the small inner end in outer end, when outer gas stream enters circuit board stomata, will first lead to
The outer stomidium of lesser conical tube is crossed then again by biggish interior stomidium, finally just can enter inner cavity of the present invention.Air-flow from compared with
Small outer stomidium is into larger interior stomidium flow process, and air-flow flows through aisle spare and can become larger, and air-flow can be extended out gradually.In gas
Under the premise of stream total amount is certain, the air velocity for flowing out conical tube can be significantly lower than the air-flow into conical tube, therefore plays
Reduction of speed effect, greatly reduces the impact to vibrating diaphragm.As a same reason, when air-flow is from the biggish inner end of conical tube to lesser outer end
When flowing, although the air velocity of outflow conical tube is quickly, the internal air velocity flowed outward of the present invention is lower, protects
The safety in utilization of vibrating diaphragm is demonstrate,proved.
As an improvement, be installed on the circuit board loop circuit plate stomata setting several copper dish, water conservancy diversion tube end with
When circuit board stomata is aligned, two copper sheets copper dish corresponding with any pair are unique by the affixed rear identified diversion pipe direction of scolding tin
's.
In the invention patent, diversion pipe one end is connect with circuit board, and the other end is arranged towards becket inner wall middle part, because
This diversion pipe is obliquely installed for circuit board.As previously mentioned, diversion pipe is towards becket inner wall middle part to air-flow
The vibration frequency of vibrating diaphragm is changed after guiding, is reduced the instantaneous variation amount of vibrating diaphragm, so that sound is slowed down, protect vibrating diaphragm.
In actual production, after diversion pipe is fixedly welded on circuit board, this buffering effect is just secured, therefore can only be suitble to one
The application of kind volume occasion.But it is needed in audio-video monitoring or acquisition occasion such as indoors in use, ambient enviroment is quieter
Will buffer requirement to big volume sound it is smaller；In outdoor application, is influenced, needed to burst by the uncertain sound factors in the external world
The buffering effect of sound is larger；In the big volume noise place such as heavy-duty machinery processing site, airport, mechanical equipment or aircraft are ear-piercing
Noise not only influence pickup effect and can also damage vibrating diaphragm, it is just very big to the buffering effect of big volume at this time.In the present invention,
Ring sets a circle copper dish around circuit board stomata, and makes copper dish when water conservancy diversion tube end is aligned with circuit board stomata, diversion pipe two
Copper sheet copper dish corresponding with any pair are arranged in a one-to-one correspondence.In this way, when copper sheet is adjacent to from different copper dish, diversion pipe opposing circuit board
Swing angle be different, be also different towards the position of becket inner wall, it is also just different to the buffering effect of air-flow.Cause
This, can determine according to actual needs copper sheet and that copper dish are adjacent to, and fixed with scolding tin, in other words, can according to copper sheet with
Generated different buffering effects classify to the present invention after different copper dish welding, so that it is determined that different application places or pin
Seller caused by being greatly saved because of exploitation different demands product to repeating to research and develop, open up the costs such as mold, inspection.
In conclusion using the patch type earphone line control microphone of this structure, structurally reasonable, compact, sensitivity
It is higher, and rupture of membranes is not easy in gas shock big by sound, long service life has high temperature resistant property, can use Reflow Soldering
Equipment processing, manipulation sound is convenient, output is stablized, and is particluarly suitable for the lesser air-flow detecting field in space and closes use.
Detailed description of the invention
The present invention is described in further details in conjunction with attached drawing:
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the fit structure schematic diagram of shell, pole plate, circuit board, vibrating diaphragm；
Fig. 3 is the fit structure schematic diagram of diversion pipe and copper sheet；
Fig. 4 is the fit structure schematic diagram of diversion pipe and circuit board；
Fig. 5 is the structural schematic diagram that diversion pipe is fixed to after circuit board；
Fig. 6 is interior air-flow paths schematic diagram of the present invention；
Fig. 7 is electrical schematic diagram of the invention.
In figure: 1 is shell, and 2 be pole plate, and 3 be gasket ring, and 4 be vibrating diaphragm, and 5 be becket, and 6 be circuit board, and 7 be wiring copper sheet,
8 be airflow hole, and 9 be dead ring, and 10 be Air Filter, and 11 be pole plate stomata, and 12 be circuit board stomata, and 013 is diversion pipe, and 014 is
Copper sheet, 015 is solder(ing) paste, and 016 is venthole, and 017 is copper dish, and 018 is scolding tin, and 13 be PWB plate, and 14 be pad, and 15 be capacitor,
16 be diode, and 17 be switch, and 18 be electrode line, and 19 be power supply line, and 20 be output capacitance, and 21 be load resistance.
Specific embodiment
As shown, the patch type earphone line control microphone includes shell 1, bottom of shell inner cavity is equipped with metal polar plate 2, pole
Plate is equipped with pole plate stomata 11.Insulation gasket ring 3 is equipped with above pole plate, the upper surface for the gasket ring that insulate, which tenses, is pasted with vibrating diaphragm 4, vibrating diaphragm
Plating nickel on surface.It is equipped with becket 5 above vibrating diaphragm, circuit board 6 is equipped with above becket, circuit board is equipped with circuit board stomata.Outside
Shell top by way of to in-flanges by above-mentioned each compressing parts together, wiring copper sheet 7, shell bottom are equipped on the outside of circuit board
Portion is equipped with airflow hole 8 corresponding with diaphragm position.It is welded with diversion pipe 013 corresponding with circuit board stomata 12 on circuit board 6, leads
013 end of flow tube is fixed there are two symmetrically arranged outwardly extending copper sheet 014, and copper sheet 014 is welded on 6 inside of circuit board, leads
Flow tube 013 is tilted towards 5 inner wall of becket middle part.It further include PWB plate 13, PWB plate 13 is equipped with corresponding with wiring copper sheet 7 two
A pad 14, pad 14 are pasted together by solder(ing) paste 015 with wiring copper sheet 7.PWB plate 13 is equipped with several close pads 14
The venthole 016 of setting is welded with the capacitor 15 in parallel with two pads 14, diode 16 and switch 17 on PWB plate 13.Switch
17 positive terminals are electrically connected with electrode line 18 and power supply line 19, and output capacitance 20 is serially connected in electrode line 18, is concatenated in power supply line 19
There is load resistance 21.
The patch type earphone line control microphone of this structure mainly includes the vibrating diaphragm and metal polar plate of setting in the shell, vibrating diaphragm
Insulation gasket ring is provided between pole plate, the avris of vibrating diaphragm is pasted on gasket ring side after tensing, in this way, vibrating diaphragm is just in gasket ring
It is in planar for supporting down, and vibrating diaphragm and the metal polar plate parallel interval under the support of insulation gasket ring come.In order to make vibrating diaphragm and metal
Pole plate constitutes the electrical structure with contact function, nickel plating on vibrating diaphragm, and the nickel coating of vibrating diaphragm is electrically connected by becket and circuit board
It connecing, pole plate is also electrically connected with circuit board composition by shell, in this way, vibrating diaphragm and pole plate be just all together with circuit board electrical connection,
Vibrating diaphragm and pole plate constitute two contacts of normal open switch.Vibrating diaphragm is triggered in order to facilitate air-flow, metal polar plate is equipped with perforation pole
The pole plate stomata of plate two sides is also equipped with the circuit board stomata of perforation circuit board two sides on circuit board, in this way, vibrating diaphragm is far from pole plate
Side be connected with ambient atmosphere by circuit board stomata, the vibrating diaphragm side adjacent with pole plate passes through pole plate stomata and airflow hole
It is communicated with atmosphere, when outer gas stream is flowed by circuit board stomata to airflow hole direction, air-flow will push vibrating diaphragm to pole plate
Direction is mobile, and when the nickel coating of diaphragm surface and metal polar plate touch together, vibrating diaphragm is just constituted with pole plate and be electrically connected, electric
Road plate sends this switching signal to external circuit by wiring copper sheet, to realize the effect of sensitive perception air-flow.
In the present invention, it is welded with diversion pipe corresponding with circuit board stomata on the inside of circuit board, diversion pipe is towards becket
It is obliquely installed in the middle part of inner wall, the air-flow for thus flowing through circuit board stomata, which is provided with towards the inclination in the middle part of becket inner wall, leads
To effect.When speaker speaks up, the strong air flow for flowing through circuit board stomata can be under the guiding role of diversion pipe to gold
Belong to flowing in the middle part of ring, or is flowed outward in the middle part of becket inner wall through diversion pipe.In this way, the path that flows through of air-flow is exactly: electricity
Road plate stomata, diversion pipe, becket inner wall middle part, pole plate stomata, are a curved C-shaped paths.And conventional patch formula earphone
The circulation path of line traffic control microphone interior air-flow is: circuit board stomata, pole plate stomata, is the straight line path being directly connected to.Cause
This, air flow path of the invention is longer than the air flow path of conventional patch formula earphone line control microphone, and it is strong to play mitigation air-flow
The effect of degree makes air-flow not generate the big vibration of moment to vibrating diaphragm, therefore will not tear vibrating diaphragm, effective protection vibrating diaphragm, greatly
Service life is extended greatly.Since the air-flow total amount for entering of the invention is constant, the Oscillation Amplitude of vibrating diaphragm is identical, the letter of generation
It is number identical.
In the present invention, water conservancy diversion tube end is installed with two symmetrically arranged outwardly extending copper sheets, and diversion pipe is exactly logical
The two copper sheets are crossed to be fixedly welded on the inside of circuit board.In this way, connection welding is few, easy to operate, it is firm to connect.
The invention also includes the PWB plate being fixedly mounted on earphone cable, PWB plate is equipped at least two pads, pad with
Corresponding matching above and below wiring copper sheet.Therefore in production, only need to solder(ing) paste be first applied on wiring copper sheet or is applied to pad
On, then hold shell and PWB plate wiring copper sheet and pad is corresponding in opposite directions close to being until shell turn-up portion is withstood on PWB plate
Only, it will pass through solder(ing) paste so each component of shell and its inside has been pasted on PWB plate, the present invention be finally put into reflux
Soldering equipment, the hot-air in solder reflow device can melt solder(ing) paste into tin soldering liquid, will be by corresponding wiring after tin soldering liquid is cooling
Copper sheet and pad are fixed together, and not only realize be fixedly mounted on shell and its internal component on PWB plate also in this way
Circuit board and PWB are realized into electrical connection, operated very simple.In addition, in the present invention, being welded on PWB plate and being welded with two
Capacitor, diode and the switch of disk parallel connection, be provided with the effect of capacitor and diode first is that filters out impurity signal, makes signal
It exports apparent.For convenience of narration, the both ends of switch are respectively defined as positive terminal and negative pole end.Wherein, switch positive terminal electricity
It is connected with electrode line and power supply line, power supply line and switch negative pole end are electrically connected by the way that earphone cable is corresponding with external power supply positive and negative polarities
It connects, for powering to circuit board.When power supply starts, diode has the function of stabilized power supply signal, this is the work of diode
With it two.Two output ends of the negative pole end of electrode line and switch as inductive signal export sound electric signal outward.In this hair
In bright, it is serially connected with output capacitance in electrode line, is used for steady output signal.Load resistance is serially connected in power supply line, for limiting
Electric current and balanced load.Since switch in parallel is at two pad both ends, when the switch is closed, capacitor starts to discharge, simultaneously
Power supply is shorted, and is equivalent to have sent a control signal or request signal to peripheral circuit in this way, is such as opened and is received sound
The signals such as inductive signal.When switch restores off state, circuit board starts to export voice signal outward, therefore the present invention is not only
It can be fixedly attached on earphone signal line, and there is control semiotic function.
In the present invention, PWB plate is equipped with several ventholes, and venthole penetrates through inside and outside PWB plate.Because circuit board is logical
It crosses after solder(ing) paste pastes on PWB plate, will form a relatively closed space between circuit board and PWB plate.Venthole is set
Purpose be so that PWB plate two sides is ventilated, even if also circuit board and it is extraneous ventilate, be not only advantageous to hot-air energy when Reflow Soldering in this way
Smoothly touch solder(ing) paste, moreover it is possible to provide drain passage for thermal current, substantially increase the circulation of air.In the present invention,
Venthole is arranged close to pad, and the flue gas that solder(ing) paste can be enable to melt in this way is discharged quickly through venthole, plays quickly
Pressure release effect, protects the safety of each component of interior of shell especially vibrating diaphragm.
In the present embodiment, becket outer sheath is equipped with dead ring 9.Becket contacts and short with outer casing inner wall in order to prevent
Road, becket outer sheath are equipped with dead ring, and dead ring becket and shell can be isolated, to improve this patch type earphone cable
Control the stability of microphone.
In the present invention, Air Filter 10 is pasted on the outside of outer casing bottom.The impurity in air-flow passes through airflow hole in order to prevent
Into inside this patch type earphone line control microphone, it is pasted with Air Filter in shell bottom outside, can be filtered after Air Filter is set
Except impurity, guarantee sensitivity and the service life of this patch type earphone line control microphone.
In the present invention, the diversion pipe is the big conical tube in the small inner end in outer end.Because diversion pipe is that the small inner end in outer end is big
Conical tube, therefore when outer gas stream enters circuit board stomata, will first pass through the outer stomidium of lesser conical tube then again by compared with
Big interior stomidium, finally just can enter inner cavity of the present invention.Air-flow from smaller outer stomidium into larger interior stomidium flow process, gas
Stream flows through aisle spare and can become larger, and air-flow can be extended out gradually.Under the premise of air-flow total amount is certain, the gas of conical tube is flowed out
Flow velocity degree can be significantly lower than the air-flow into conical tube, therefore plays the role of reduction of speed, greatly reduces the impact to vibrating diaphragm.Together
Sample reason, when air-flow is flowed from the biggish inner end of conical tube to lesser outer end, although the air velocity of outflow conical tube is very
Fastly, but the internal air velocity flowed outward of the present invention is lower, ensure that the safety in utilization of vibrating diaphragm.
Several copper dish 017 of loop circuit plate stomata setting, water conservancy diversion tube end and circuit board are installed on the circuit board
When stomata is aligned, two copper sheets copper dish corresponding with any pair are unique by the affixed rear identified diversion pipe direction of scolding tin.?
In the invention patent, diversion pipe one end is connect with circuit board, and the other end is arranged towards becket inner wall middle part, therefore diversion pipe phase
It is obliquely installed for circuit board.As previously mentioned, diversion pipe is towards becket inner wall middle part to vibrating diaphragm after air-flow guiding
Vibration frequency changed, reduce the instantaneous variation amount of vibrating diaphragm, so that sound is slowed down, protect vibrating diaphragm.In actual production
In, after diversion pipe is fixedly welded on circuit board, this buffering effect is just secured, therefore can only be suitble to a kind of volume occasion
Application.But it is needed such as indoors in use, ambient enviroment is quieter to big volume in audio-video monitoring or acquisition occasion
The buffer requirement of sound is smaller；In outdoor application, is influenced by the uncertain sound factors in the external world, need the buffering to burst of sound
Effect is larger；In the big volume noise place such as heavy-duty machinery processing site, airport, mechanical equipment or aircraft harsh noise are not only
Vibrating diaphragm can also be damaged by influencing pickup effect, just very big to the buffering effect of big volume at this time.In the present invention, in circuit board gas
Ring sets a circle copper dish around hole, and makes copper dish when water conservancy diversion tube end is aligned with circuit board stomata, two copper sheet of diversion pipe with it is any
Corresponding copper dish are arranged in a one-to-one correspondence.In this way, when copper sheet is adjacent to from different copper dish, the swing angle of diversion pipe opposing circuit board
It is different, is also different towards the position of becket inner wall, it is also just different to the buffering effect of air-flow.Therefore, Ke Yigen
Factually border it needs to be determined that copper sheet and that copper dish are adjacent to, and it is fixed with scolding tin 018, in other words, can be according to copper sheet and different Cu
Generated different buffering effects classify to the present invention after disk welding, so that it is determined that different application places or seller
To repeating to research and develop, open up the costs such as mold, inspection caused by being greatly saved because of exploitation different demands product.
Claims (5)
1. a kind of patch type earphone line control microphone, it is characterized in that: including shell (1), shell (1) intracavity bottom is equipped with metal pole
Plate (2), pole plate (2) are equipped with pole plate stomata (11), and insulation gasket ring (3), the upper end of insulation gasket ring (3) are equipped with above pole plate (2)
Face tenses and is pasted with vibrating diaphragm (4), vibrating diaphragm (4) plating nickel on surface, and vibrating diaphragm (4) is in planar, the branch of vibrating diaphragm and pole plate in insulation gasket ring
Lower parallel interval setting is supportted, vibrating diaphragm and pole plate constitute the electrical structure with contact function, i.e. vibrating diaphragm and pole plate constitutes normally opened
Two contacts of switch；Becket (5) are equipped with above vibrating diaphragm (4), are equipped with circuit board (6) above becket (5), circuit board (6)
Be equipped with circuit board stomata (12), shell (1) top by way of to in-flanges by above-mentioned each compressing parts together, circuit
Wiring copper sheet (7) are equipped on the outside of plate (6), shell (1) bottom is equipped with airflow hole (8) corresponding with vibrating diaphragm (4) position, circuit board
(6) diversion pipe (013) corresponding with circuit board stomata (12) is welded on, diversion pipe (013) end is fixed, and there are two symmetrically set
The outwardly extending copper sheet (014) set, copper sheet (014) are welded on the inside of circuit board (6), and diversion pipe (013) is towards becket (5)
Inclination in the middle part of inner wall further includes PWB plate (13), and PWB plate (13) is equipped with two pads (14) corresponding with wiring copper sheet (7),
Pad (14) is pasted together by solder(ing) paste (015) with wiring copper sheet (7), and PWB plate (13) is equipped with several close pads
(14) venthole (016) being arranged is welded with the capacitor (15) in parallel with two pad (14), diode on PWB plate (13)
(16) and switch (17), switch (17) positive terminal are electrically connected with electrode line (18) and power supply line (19), concatenation in electrode line (18)
Have output capacitance (20), load resistance (21) are serially connected in power supply line (19)；Power supply line and switch negative pole end by earphone cable with
Two output ends of the negative pole end of the corresponding electrical connection of external power supply positive and negative polarities, electrode line and switch as inductive signal.
2. a kind of patch type earphone line control microphone as described in claim 1, it is characterized in that: becket (5) outer sheath is equipped with
Dead ring (9).
3. a kind of patch type earphone line control microphone as claimed in claim 1 or 2, it is characterized in that: shell (1) bottom outside is viscous
Post Air Filter (10).
4. a kind of patch type earphone line control microphone as claimed in claim 3, it is characterized in that: the diversion pipe (013) is outer
The conical tube for holding small inner end big.
5. a kind of patch type earphone line control microphone as claimed in claim 4, it is characterized in that: fixed on the circuit board (6)
Several copper dish (017) for having loop circuit plate stomata (12) to be arranged, diversion pipe (013) end is aligned with circuit board stomata (12)
When, two copper sheets (014) copper dish (017) corresponding with any pair pass through scolding tin (018) affixed rear identified diversion pipe (013) direction
It is unique.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510637896.9A CN106385648B (en) | 2015-10-07 | 2015-10-07 | Patch type earphone line control microphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510637896.9A CN106385648B (en) | 2015-10-07 | 2015-10-07 | Patch type earphone line control microphone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106385648A CN106385648A (en) | 2017-02-08 |
| CN106385648B true CN106385648B (en) | 2019-05-14 |
Family
ID=57916485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510637896.9A Active CN106385648B (en) | 2015-10-07 | 2015-10-07 | Patch type earphone line control microphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106385648B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200969679Y (en) * | 2006-10-18 | 2007-10-31 | 潍坊歌尔电子有限公司 | Electret microphone |
| JP2008042310A (en) * | 2006-08-02 | 2008-02-21 | Rion Co Ltd | Hearing aid |
| CN201114760Y (en) * | 2007-10-12 | 2008-09-10 | 深圳市豪恩电声科技有限公司 | A solid conductive microphone |
| CN202679619U (en) * | 2012-07-11 | 2013-01-16 | 深圳市新厚泰塑胶电子有限公司 | An electret microphone |
-
2015
- 2015-10-07 CN CN201510637896.9A patent/CN106385648B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008042310A (en) * | 2006-08-02 | 2008-02-21 | Rion Co Ltd | Hearing aid |
| CN200969679Y (en) * | 2006-10-18 | 2007-10-31 | 潍坊歌尔电子有限公司 | Electret microphone |
| CN201114760Y (en) * | 2007-10-12 | 2008-09-10 | 深圳市豪恩电声科技有限公司 | A solid conductive microphone |
| CN202679619U (en) * | 2012-07-11 | 2013-01-16 | 深圳市新厚泰塑胶电子有限公司 | An electret microphone |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106385648A (en) | 2017-02-08 |
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Effective date of registration: 20191205 Address after: 261200 building 7, no.1369, Zhengtai Road, Fangzi District, Weifang City, Shandong Province Patentee after: Shandong Xingang Electronic Technology Co., Ltd Address before: 261061 No. 619 North Sea Road, hi tech Zone, Shandong, Weifang Patentee before: Weifang Xingang Electronics Co., Ltd. |
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