CN205566636U - MEMS cigar lighter shocks resistance and high voice control sensor of sensitivity with built -in - Google Patents
MEMS cigar lighter shocks resistance and high voice control sensor of sensitivity with built -in Download PDFInfo
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- CN205566636U CN205566636U CN201620288858.7U CN201620288858U CN205566636U CN 205566636 U CN205566636 U CN 205566636U CN 201620288858 U CN201620288858 U CN 201620288858U CN 205566636 U CN205566636 U CN 205566636U
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Abstract
The utility model discloses a MEMS cigar lighter shocks resistance and high voice control sensor of sensitivity with built -in, which comprises an outer shell, the shell cavity bottom is equipped with metal plates, be equipped with the polar plate gas pocket on the polar plate, the polar plate top is equipped with insulating backing ring, the up end take -up of insulating backing ring is pasted and is had the vibrating diaphragm, vibrating diaphragm surface plated nickel, the vibrating diaphragm top is equipped with the backing ring, the backing ring top is equipped with the circuit board, be equipped with the middle level hole on the circuit board, shell upper portion compresses tightly each part of the aforesaid together through inside turn down rims form, the circuit board outside is equipped with wiring welding needle, the shell bottom is equipped with the air current hole that corresponds with the film position that shakes, middle level hole and polar plate gas pocket all are the inclined holes towards the middle part slope of backing ring inner wall, and reasonable in structure, small volume, the sensitivity is high, and be difficult for the rupture of membranes when receiving loud big gas shock and lead to the fact the response inefficacy, long service lifetime, have antifogly, dampproofing function, be particularly suitable for using in winter or rainy day.
Description
Technical field
This utility model relates to the built-in shock resistance of a kind of MEMS cigar lighter and highly sensitive voice operated sensor.
Background technology
Silicon microphone, is again microphone or pneumatic sensor, as the term suggests being exactly the change of perception sound air-flow, and air-flow change is converted into the sensor of corresponding switching signal output.The most traditional microphone is to be driven magnetic switch to constitute by silicone rubber membrane, and when there being air-flow to flow through silicone rubber membrane, silicone rubber membrane shakes, thus triggers magnetic switch action, magnetic switch output represent air-flow
The on-off model of conversion, traditional microphones simple in construction, easy to use, application is widely.Traditional microphones is disadvantageous in that: volume is big, and sensitivity is low, is unsuitable for requiring higher applications in induction sensitivity.
At present, microphone is applied to online transaudient field more, such as on the earphone cord of mouth.When microphone uses as the sensor of induction air flow, typically it is applied to electronic musical instrument field or electronic cigarette field more.When user wears the earphone with function of speaking, the air-flow spoken can be delivered near microphone, the air-flow spoken can drive the diaphragm oscillations of microphone, so signal of telecommunication on microphone will follow the change of sound air-flow, thus play sensing sound air-flow, convert sound airflow signal, the effect of transmission sound airflow signal.For user, different people has different customs.Such as, somebody likes gulping down and mumbles, and onlys demand the other side and can hear.When somebody takes out electronic cigarette, liking gently aspirating, slowly spue smog, for such user, higher to the sensitivity requirement of microphone.Somebody then likes speaking up, and for the purpose of the other side can catch, understand, becomes apparent from when particularly speaking in the environment of noisy.Someone is when taking out electronic cigarette, likes big mouth to aspirate, and also pursues the visual effect swallowed clouds and blown out fog of a large amount of smog that spue when discharge smog.This just requires that the frequency range of microphone perception sound or air-flow is wider, amplitude is bigger, the most just require that microphone needs to produce larger range of induced signal, and this must be propagandaed directed to communicate to microphone or big air-flow suction increases its internal diaphragm oscillations amplitude and realizes by loud.Due to microphone on earphone or on electronic cigarette general distance oral area nearer, big mouth is spoken and is caused bigger air-flow can promote the moment quick violent oscillatory motion of vibrating diaphragm in microphone, this frequently can lead to rupturing of vibrating diaphragm, also results in sensing and lost efficacy, substantially reduces service life.It addition, conventional earphone microphone is directly to be fixed on earphone cord by common microphone, it is the most firm not only to connect, and not to acoustical signal output control member, uses very inconvenient.
During it addition, use in the winter time, owing to outdoor temperature is relatively low, the air-flow that people speak can produce a large amount of fog.Owing to transmission silicon microphone does not have anti-fog, the effect of anti-moisture, these fog can be attached on vibrating mass after entering mike, causes sensing to lose efficacy the most failed.If used in the wild, if running into the rainy day, owing to traditional silicon mike does not has waterproof construction, rainwater can directly block silicon Mike after entering silicon microphone, directly results in silicon microphone and lost efficacy.
Utility model content
The technical problems to be solved in the utility model is a kind of rational in infrastructure for above-mentioned not enough offer, compact, sensitivity is higher, and when by loud big gas shock, be difficult to rupture of membranes and cause sensing to lose efficacy, service life is long, there is antifog, moisture-proof function, be particularly suitable in the winter time or the rainy day use the built-in shock resistance of a kind of MEMS cigar lighter and highly sensitive voice operated sensor.
nullFor solving above-mentioned technical problem，This MEMS cigar lighter is structurally characterized in that with built-in shock resistance and highly sensitive voice operated sensor: include bottom pcb board，MEMS sensor and asic chip it is welded with in the middle part of bottom pcb board，The outfan of MEMS sensor is by holding wire electrical connection corresponding with the input of asic chip，The outfan of asic chip is by output lead electrical connection corresponding with the lead-out terminal of bottom pcb board，Fix on bottom pcb board and be pasted with gasket ring，Gasket ring top is fixing is pasted with middle level pcb board，Middle level pcb board is provided with hole, middle level，Hole, middle level is directed towards the inclined hole being obliquely installed in the middle part of gasket ring inwall，The supporting network of the outside round and smooth protrusion in middle part it is installed with in hole, middle level，Fix on the middle level pcb board end face of periphery, hole, middle level and supporting network and be coated with fine-structure mesh cloth，Middle level pcb board end face is fixedly provided with upper strata pcb board，The upper strata hole corresponding with hole, middle level it is provided with in the middle part of the pcb board of upper strata，Gasket ring inner chamber is provided with the internal ring of ladle cover MEMS sensor and asic chip，First end of internal ring is arranged towards hole, middle level，Second end of internal ring is installed with the weldering pawl welded together with bottom pcb board inwall，First end of internal ring is coaxially installed with the collection acoustic shell arranged towards MEMS microphone sound hole，Collection acoustic shell is in towards thinner coniform of the thicker other end in one end, hole, middle level，Elastic screen cloth it is equipped with in the middle part of collection acoustic shell inwall，The screen cloth hole of through setting it is evenly equipped with on elastic screen cloth，It is evenly equipped with, on the collection acoustic shell inwall in hole, middle level, the dust suction bundle that dust can be adsorbed.
The MEMS cigar lighter of this structure is to realize rational in infrastructure by collection acoustic form slow in the isolation of stacked evagination with built-in shock resistance and highly sensitive voice operated sensor, compact, sensitivity is higher, and when by loud big gas shock, be difficult to rupture of membranes and cause sensing to lose efficacy, service life is long, there is antifog, moisture-proof function, be particularly suitable in the winter time or the rainy day use.
In the isolation of stacked evagination, slow collection acoustic form is primarily referred to as structure of the present utility model is in layer to be overlapped mutually multiple structure together, is broadly divided into fabric, media layer damage and superstructure in general.Wherein, fabric is main circuit structure of the present utility model, mainly includes bottom pcb board, is arranged on other components such as the MEMS sensor on bottom pcb board, asic chip and lead-out terminal.In fabric, MEMS sensor is again its core component, and the Main Function of MEMS sensor is perception ambient sound airflow signal, and this sound airflow signal is converted into the signal of telecommunication output of correspondence.The electrical connection corresponding with the outfan of MEMS sensor of the signal input part of asic chip, the sound air-flow signal of telecommunication received is processed and amplifies by asic chip, exports finally by the lead-out terminal on bottom pcb board, here it is the Main Function of asic chip.In this utility model, media layer damage is the primary structure being adjusted sound air-flow.Media layer damage mainly includes the gasket ring arranging on bottom pcb board and the middle level pcb board being arranged on gasket ring, and bottom pcb board, gasket ring and middle level pcb board are pasted together by glue is fixing.Because gasket ring is a loop configuration, therefore gasket ring is fixedly supported between bottom pcb board and middle level pcb board, between bottom pcb board and middle level pcb board, thus constitute a cavity, and this cavity is exactly the space containing MEMS sensor and asic chip, this space is also the passage that sound air-flow enters MEMS sensor.In this utility model, being provided with hole, middle level in the middle part of the pcb board of middle level, the effect in hole, middle level is just to provide passage or the entrance that aforementioned cavity is connected with the external world, makes MEMS sensor can pass through aforementioned cavity, hole, middle level perception external voice air-flow.
In this utility model, media layer damage also includes the internal ring being arranged in gasket ring inner chamber, and internal ring is cylindrical, and internal ring is coaxially disposed with gasket ring.For convenience of narration, the two ends of internal ring being called the first end and the second end, wherein, the first end of internal ring is arranged towards the hole, middle level of middle level pcb board, and the second end of internal ring is adjacent to inside bottom pcb board arrange.In this internal ring, internal ring the second end is fixedly provided with weldering pawl, and weldering pawl becomes placed against inside bottom pcb board.When producing, by scolding tin, weldering pawl is fixedly welded on inside bottom pcb board, thus achieves and internal ring is fixed on the purpose on bottom pcb board, operate the simplest.In this utility model patent, internal ring the first end is installed with a collection acoustic shell, integrates acoustic shell and arranges as circular tube structure, the cone-shaped structure that thicker one end is thinner in one end.In this patent, one end that collection acoustic shell is thicker is arranged towards the hole, middle level on the pcb board of middle level, and thinner one end is arranged towards the MEMS sensor inside bottom pcb board.The purpose so arranged, it is when external voice air-flow is delivered to gasket ring inner chamber through hole, middle level, can make collection acoustic shell that one end that overwhelming majority sound airflow signal is collected together by collection acoustic shell is thinner is delivered to MEMS sensor, thus effectively prevent the diffusion in transmittance process of the sound air-flow and weakening, serve the effect strengthening this utility model collection acoustic sensitivity.In this utility model patent, collection acoustic shell is coaxially disposed with internal ring, so arranges and collection acoustic shell can be enable effectively to align with internal ring and hole, middle level, be favorably improved the collection rate to sound air-flow.Being equipped with a piece of elastic screen cloth in the middle part of collection acoustic shell inwall, elastic screen cloth is wafer architecture, just covers whole collection acoustic shell inwall central cavity.Being evenly equipped with some screen cloth holes on elastic screen cloth, through elastic screen cloth both sides, screen cloth hole are arranged, and the sound air-flow that so collection acoustic shell is collected passes to MEMS microphone behind the screen cloth hole by elastic screen cloth.Elastic screen cloth not only has the effect of transmission sound air-flow; after the sound air-flow frequency collected and amplitude reach certain value; elastic screen cloth also can utilize the transmission of natural resiliency buffer voice air-flow; thus avoid high frequency height to shake the impact to MEMS sensor of the sound air-flow; effectively protect MEMS sensor, extend service life.In this utility model patent, being evenly equipped with dust suction bundle on the collection acoustic shell inwall in hole, middle level, the Main Function of dust suction bundle is absorption dust.When there being dust to pass through hole, middle level entrance gasket ring inner chamber, dust can be taken advantage of a situation and be flown away.Because the stop of elastic screen cloth, the air draught entering gasket ring can be forced to surrounding diffusion, and such air draught will necessarily be through the collection acoustic shell inner wall edge at dust suction bundle place.Now, dust suction bundle can adsorb the dust in air draught, avoid dust freely to fly away in gasket ring inner chamber, thus avoid dust to pass through screen cloth hole and enter MEMS sensor, the most fundamentally avoid the problem causing MEMS sensor sensitivity decrease even to lose efficacy because of dirt accumulation.
Media layer damage also includes the supporting network being installed in hole, middle level, and supporting network is the arc surfaced of periphery and the outside round and smooth protrusion in affixed middle part, hole, middle level.Fixing outside the middle level pcb board end face of periphery, hole, middle level and supporting network and be coated with fine-structure mesh cloth, the aperture in fine-structure mesh cloth is less, has good sound effect ventilative, logical.Owing to fine-structure mesh cloth aperture is less; the most also there is preferable waterproof action; rainwater or fog under normal pressure are difficult to enter aforementioned cavity through fine-structure mesh cloth, greatly protect MEMS sensor and the safety of asic chip in cavity, make this utility model be provided with fabulous antifog, water-proof function.Additionally, supporting network and fine-structure mesh cloth are all the cambered surfaces being connected with middle level pcb board in middle part evagination periphery, hence with the feature that Water seeks its own level, there is for external fog or rainwater the most outwards shunting action, thus without causing the accumulation of fog or rainwater, effectively prevent the infiltration of fog or rainwater.
In this utility model, superstructure mainly includes the upper strata pcb board being arranged on middle level pcb board end face, is provided with the upper strata hole corresponding with hole, middle level in the middle part of the pcb board of upper strata.The effect of upper strata pcb board is set, it is simply that being fixed on the pcb board of middle level after fine-structure mesh cloth edge being strained, such fine-structure mesh cloth just can tightly be attached on supporting network, effectively prevent fine-structure mesh cloth and swing with the wind and the noise that produces, be favorably improved pickup quality.
As improvement, being fixedly provided with, in the middle part of collection acoustic shell inwall, the circular cone guard that tip is arranged towards hole, middle level, circular cone guard is positioned at elastic screen cloth and is evenly equipped with the guard hole of through setting on the side in hole, middle level, circular cone guard.
For convenience of narration, elastic screen cloth is referred to as near the side of middle level pcb board outside, elastic screen cloth is referred to as inner side towards the side of bottom pcb board.Because brailer cloth is arranged on the outside of elastic screen cloth, therefore sound air-flow will first pass through circular cone guard and just can be delivered to MEMS sensor by elastic screen cloth again.Because circular cone guard is cone, and the tip of circular cone guard is arranged towards middle level pcb board, and therefore when outer air stream flows into gasket ring inner chamber, circular cone guard will play the guide functions to air draught, makes air-flow flow along brailer cover outer wall to surrounding.Obviously, floating fine dust in the gas flow can be flown away to periphery with air-flow, and circular cone guard peripheral part is exactly the adjacent domain of aforementioned dust suction bundle, therefore circular cone guard can be by dust water conservancy diversion to dust suction bundle, it is to avoid flying away and impact on MEMS sensor sensitivity of dust.
As improvement, described dust suction bundle includes the main elastic rod that bending extension is arranged, and on main elastic rod, spacer ring is provided with the secondary elastic rod that some bending extensions are arranged, and on secondary elastic rod, spacer ring is provided with some fine fleeces.
This dust suction Shu Caiyong branched structure increases area coverage, and branched structure mainly includes main elastic rod, secondary elastic rod and fine fleece.Wherein secondary elastic rod interval is circumferentially positioned on main elastic rod periphery, makes main elastic rod have the netted covering function of stereochemical structure.So, main elastic rod and secondary elastic rod surface area are greatly increased, and add dust bond area in sound air-flow, improve dust adsorption effect.Because interval is surrounded with some fine fleeces on secondary elastic rod, therefore fine fleece has bigger surface area, fundamentally improves the adsorption efficiency to dust and effect, namely substantially increases the pick-up performance of dust suction bundle.
As improvement, upper strata is installed with bracing frame in hole.
Bracing frame can be set in hole, upper strata, be equivalent to outside fine-structure mesh cloth, be provided with a netted protective layer, the most do not affect the transmission of sound, it is also possible to play the effect preventing fine-structure mesh cloth from being scratched, namely the effect of protection fine-structure mesh cloth.
As improving further, fix outside bracing frame and be pasted with Air Filter.
Result in blockage on fine-structure mesh cloth to prevent the impurity in air-flow from being pasted by bracing frame, Air Filter it is pasted with outside bracing frame, impurity can be filtered, it is ensured that this MEMS cigar lighter is with built-in shock resistance and the sensitivity of highly sensitive voice operated sensor and life-span after Air Filter is set.
As improvement, hole, described middle level is the conical bore that little the inner, outer end is big.
Because hole, middle level is the conical bore that inner big outer end is little, when therefore outer gas stream enters this utility model, by first passing through less outer stomidium the most again by bigger interior stomidium, finally this utility model inner chamber could be entered.At air-flow from less outer stomidium to relatively imperial palace stomidium flow process, airflow passes aisle spare can become larger, and air-flow can gradually extend out.On the premise of air-flow total amount is certain, the air velocity flowing out conical bore can thereby serve to reduction of speed effect significantly lower than the air velocity of entrance conical bore, greatly reduced the impact to vibrating diaphragm.As a same reason, when air-flow flows to less outer end from bigger conical bore the inner, although flow out the air velocity of conical bore quickly, but air velocity inside this utility model outwardly is the most relatively low, it is ensured that the safety in utilization of vibrating diaphragm.
As improvement, gasket ring peripheral ring is provided with the metal level corresponding with lead-out terminal, with the metal connection dish being installed with on the pcb board of middle level by metal level electrical connection corresponding with bottom pcb board outside the pcb board of upper strata.
After arranging metal level on gasket ring, the signal of telecommunication just can be transmitted to middle level pcb board by bottom pcb board by metal level, serves the effect of the transmission signal of telecommunication.Outside the pcb board of upper strata and it is installed with the metal connection dish of correspondence on the pcb board of middle level, metal connection dish is by metal level electrical connection corresponding with the lead-out terminal of bottom pcb board, thus be equivalent to be also provided with a set of lead-out terminal at upper strata pcb board, the most just can carry out the output of signal at end face of the present utility model and bottom surface respectively, greatly facilitate application of the present utility model.
As improvement, described lead-out terminal includes light terminal and hot terminal, bottom pcb board bottom surface is fixedly provided with the plus end and negative terminal powered to MEMS sensor and asic chip, it is electrically connected with electroluminescent lamp between light terminal and negative terminal, it is electrically connected with heater strip between hot terminal and negative terminal, between plus end and negative terminal, is electrically connected with electric capacity of voltage regulation.
In this patent, bottom pcb board has been fixedly mounted on the bottom surface with plus end and negative terminal, plus end is with negative terminal by the electrical connection corresponding with the power end of MEMS sensor and asic chip with deposited copper of the via on bottom pcb board, and therefore the external circuit of cigar lighter can be powered to MEMS sensor and asic chip by plus end and negative terminal.Electric capacity of voltage regulation it is electrically connected with, for stablizing the voltage between plus end and negative terminal between plus end and negative terminal.In this utility model patent, lead-out terminal includes light terminal and hot terminal, is wherein electrically connected with electroluminescent lamp between light terminal and negative terminal, is electrically connected with heater strip between hot terminal and negative terminal.When people start to aspirate electronic cigarette, the outside suction sound produced and air-flow can trigger MEMS sensor action, MEMS sensor can pass through asic chip driven for emitting lights lamp and heating wire works, heater strip can promote electronic cigarette to produce haze effect, and electroluminescent lamp can make electronic cigarette have the visual effect of burning.When people stop suction, MEMS sensor does not has induced signal, and electroluminescent lamp is the most luminous, and heater strip does not heats, and the visual effect that now electronic cigarette does not the most burn also will not produce smog.
As improving further, bottom pcb board is provided with through bottom hole, is correspondingly arranged bottom bottom hole and MEMS sensor.
After bottom pcb board arranges bottom hole, arrange because bottom hole is through bottom pcb board, so, hole, middle level, gasket ring inner chamber and bottom hole just constitute a passage connected, when aspirating electronic cigarette, suction airstream is more smooth and easy, is more beneficial for the change of sound air-flow when MEMS sensor detects suction, and sensitivity is higher.Arrange to be correspondingly arranged with MEMS sensor by bottom hole, it is possible to use MEMS sensor itself makes above-mentioned passage carry out break-in, thus serves the effect of buffer gas flow, have and avoid, because the impact of big air-flow when firmly aspirating, serving protective effect.
In sum, use the built-in shock resistance of MEMS cigar lighter of this structure and highly sensitive voice operated sensor, rational in infrastructure, compact, sensitivity is higher, and is difficult to rupture of membranes when by loud big gas shock and causes sensing to lose efficacy, and service life is long, there is antifog, moisture-proof function, be particularly suitable in the winter time or the rainy day uses.
Accompanying drawing explanation
In conjunction with accompanying drawing, this utility model is described in further details:
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the fit structure schematic diagram of upper strata pcb board, middle level pcb board, supporting network, fine-structure mesh cloth, bracing frame and Air Filter；
Fig. 3 is the structural representation bottom bottom pcb board；
Fig. 4 is electrical schematic diagram of the present utility model；
Fig. 5 is the fit structure schematic diagram of internal ring and circular cone guard；
Fig. 6 be Fig. 5 partly cut open structural representation；
Fig. 7 is dust structural representation of Fig. 6 when descending slowly and lightly；
Fig. 8 is the structural representation of dust suction bundle.
Detailed description of the invention
nullAs shown in the figure，This MEMS cigar lighter built-in shock resistance and highly sensitive voice operated sensor include bottom pcb board 1，MEMS sensor 2 and asic chip 3 it is welded with in the middle part of bottom pcb board，The outfan of MEMS sensor is by holding wire 4 electrical connection corresponding with the input of asic chip，The outfan of asic chip is by output lead 5 electrical connection corresponding with the lead-out terminal 6 of bottom pcb board，Fix on bottom pcb board and be pasted with gasket ring 7，Gasket ring top is fixing is pasted with middle level pcb board 8，Middle level pcb board is provided with hole, middle level 9，Hole, middle level is directed towards the inclined hole being obliquely installed in the middle part of gasket ring inwall，The supporting network 10 of the outside round and smooth protrusion in middle part it is installed with in hole, middle level，Fix on the middle level pcb board end face of periphery, hole, middle level and supporting network and be coated with fine-structure mesh cloth 11，Middle level pcb board end face is fixedly provided with upper strata pcb board 12，The upper strata hole 13 corresponding with hole, middle level it is provided with in the middle part of the pcb board of upper strata，Gasket ring inner chamber is provided with the internal ring 001 of ladle cover MEMS sensor and asic chip，First end of internal ring is arranged towards hole, middle level，Second end of internal ring is installed with the weldering pawl 002 welded together with bottom pcb board inwall，First end of internal ring is coaxially installed with the collection acoustic shell 003 arranged towards MEMS microphone sound hole，Collection acoustic shell is in towards thinner coniform of the thicker other end in one end, hole, middle level，Elastic screen cloth 004 it is equipped with in the middle part of collection acoustic shell inwall，The screen cloth hole 005 of through setting it is evenly equipped with on elastic screen cloth，It is evenly equipped with, on the collection acoustic shell inwall in hole, middle level, the dust suction bundle 008 that dust can be adsorbed.
The MEMS cigar lighter of this structure is in layer to be overlapped mutually multiple structure together with built-in shock resistance and highly sensitive voice operated sensor, is broadly divided into fabric, media layer damage and superstructure in general.Wherein, fabric is main circuit structure of the present utility model, mainly includes bottom pcb board, is arranged on other components such as the MEMS sensor on bottom pcb board, asic chip and lead-out terminal.In fabric, MEMS sensor is again its core component, and the Main Function of MEMS sensor is perception ambient sound airflow signal, and this sound airflow signal is converted into the signal of telecommunication output of correspondence.The electrical connection corresponding with the outfan of MEMS sensor of the signal input part of asic chip, the sound air-flow signal of telecommunication received is processed and amplifies by asic chip, exports finally by the lead-out terminal on bottom pcb board, here it is the Main Function of asic chip.In this utility model, media layer damage is the primary structure being adjusted sound air-flow.Media layer damage mainly includes the gasket ring arranging on bottom pcb board and the middle level pcb board being arranged on gasket ring, and bottom pcb board, gasket ring and middle level pcb board are pasted together by glue is fixing.Because gasket ring is a loop configuration, therefore gasket ring is fixedly supported between bottom pcb board and middle level pcb board, between bottom pcb board and middle level pcb board, thus constitute a cavity, and this cavity is exactly the space containing MEMS sensor and asic chip, this space is also the passage that sound air-flow enters MEMS sensor.In this utility model, being provided with hole, middle level in the middle part of the pcb board of middle level, the effect in hole, middle level is just to provide passage or the entrance that aforementioned cavity is connected with the external world, makes MEMS sensor can pass through aforementioned cavity, hole, middle level perception external voice air-flow.
In this utility model, media layer damage also includes the internal ring being arranged in gasket ring inner chamber, and internal ring is cylindrical, and internal ring is coaxially disposed with gasket ring.For convenience of narration, the two ends of internal ring being called the first end and the second end, wherein, the first end of internal ring is arranged towards the hole, middle level of middle level pcb board, and the second end of internal ring is adjacent to inside bottom pcb board arrange.In this internal ring, internal ring the second end is fixedly provided with weldering pawl, and weldering pawl becomes placed against inside bottom pcb board.When producing, by scolding tin, weldering pawl is fixedly welded on inside bottom pcb board, thus achieves and internal ring is fixed on the purpose on bottom pcb board, operate the simplest.In this utility model patent, internal ring the first end is installed with a collection acoustic shell, integrates acoustic shell and arranges as circular tube structure, the cone-shaped structure that thicker one end is thinner in one end.In this patent, one end that collection acoustic shell is thicker is arranged towards the hole, middle level on the pcb board of middle level, and thinner one end is arranged towards the MEMS sensor inside bottom pcb board.The purpose so arranged, it is when external voice air-flow is delivered to gasket ring inner chamber through hole, middle level, can make collection acoustic shell that one end that overwhelming majority sound airflow signal is collected together by collection acoustic shell is thinner is delivered to MEMS sensor, thus effectively prevent the diffusion in transmittance process of the sound air-flow and weakening, serve the effect strengthening this utility model collection acoustic sensitivity.In this utility model patent, collection acoustic shell is coaxially disposed with internal ring, so arranges and collection acoustic shell can be enable effectively to align with internal ring and hole, middle level, be favorably improved the collection rate to sound air-flow.Being equipped with a piece of elastic screen cloth in the middle part of collection acoustic shell inwall, elastic screen cloth is wafer architecture, just covers whole collection acoustic shell inwall central cavity.Being evenly equipped with some screen cloth holes on elastic screen cloth, through elastic screen cloth both sides, screen cloth hole are arranged, and the sound air-flow that so collection acoustic shell is collected passes to MEMS microphone behind the screen cloth hole by elastic screen cloth.Elastic screen cloth not only has the effect of transmission sound air-flow; after the sound air-flow frequency collected and amplitude reach certain value; elastic screen cloth also can utilize the transmission of natural resiliency buffer voice air-flow; thus avoid high frequency height to shake the impact to MEMS sensor of the sound air-flow; effectively protect MEMS sensor, extend service life.In this utility model patent, being evenly equipped with dust suction bundle on the collection acoustic shell inwall in hole, middle level, the Main Function of dust suction bundle is absorption dust.When there being dust to pass through hole, middle level entrance gasket ring inner chamber, dust can be taken advantage of a situation and be flown away.Because the stop of elastic screen cloth, the air draught entering gasket ring can be forced to surrounding diffusion, and such air draught will necessarily be through the collection acoustic shell inner wall edge at dust suction bundle place.Now, dust suction bundle can adsorb the dust in air draught, avoid dust freely to fly away in gasket ring inner chamber, thus avoid dust to pass through screen cloth hole and enter MEMS sensor, the most fundamentally avoid the problem causing MEMS sensor sensitivity decrease even to lose efficacy because of dirt accumulation.
Media layer damage also includes the supporting network being installed in hole, middle level, and supporting network is the arc surfaced of periphery and the outside round and smooth protrusion in affixed middle part, hole, middle level.Fixing outside the middle level pcb board end face of periphery, hole, middle level and supporting network and be coated with fine-structure mesh cloth, the aperture in fine-structure mesh cloth is less, has good sound effect ventilative, logical.Owing to fine-structure mesh cloth aperture is less; the most also there is preferable waterproof action; rainwater or fog under normal pressure are difficult to enter aforementioned cavity through fine-structure mesh cloth, greatly protect MEMS sensor and the safety of asic chip in cavity, make this utility model be provided with fabulous antifog, water-proof function.Additionally, supporting network and fine-structure mesh cloth are all the cambered surfaces being connected with middle level pcb board in middle part evagination periphery, hence with the feature that Water seeks its own level, there is for external fog or rainwater the most outwards shunting action, thus without causing the accumulation of fog or rainwater, effectively prevent the infiltration of fog or rainwater.
In this utility model, superstructure mainly includes the upper strata pcb board being arranged on middle level pcb board end face, is provided with the upper strata hole corresponding with hole, middle level in the middle part of the pcb board of upper strata.The effect of upper strata pcb board is set, it is simply that being fixed on the pcb board of middle level after fine-structure mesh cloth edge being strained, such fine-structure mesh cloth just can tightly be attached on supporting network, effectively prevent fine-structure mesh cloth and swing with the wind and the noise that produces, be favorably improved pickup quality.
In this patent, being fixedly provided with, in the middle part of collection acoustic shell 003 inwall, the circular cone guard 006 that tip is arranged towards hole, middle level, circular cone guard is positioned at elastic screen cloth 004 and is evenly equipped with the guard hole 007 of through setting on the side in hole, middle level, circular cone guard.For convenience of narration, elastic screen cloth is referred to as near the side of middle level pcb board outside, elastic screen cloth is referred to as inner side towards the side of bottom pcb board.Because brailer cloth is arranged on the outside of elastic screen cloth, therefore sound air-flow will first pass through circular cone guard and just can be delivered to MEMS sensor by elastic screen cloth again.Because circular cone guard is cone, and the tip of circular cone guard is arranged towards middle level pcb board, and therefore when outer air stream flows into gasket ring inner chamber, circular cone guard will play the guide functions to air draught, makes air-flow flow along brailer cover outer wall to surrounding.Obviously, floating fine dust in the gas flow can be flown away to periphery with air-flow, and circular cone guard peripheral part is exactly the adjacent domain of aforementioned dust suction bundle, therefore circular cone guard can be by dust water conservancy diversion to dust suction bundle, it is to avoid flying away and impact on MEMS sensor sensitivity of dust.
In this patent, described dust suction bundle 008 includes the main elastic rod 009 that bending extension is arranged, and on main elastic rod, spacer ring is provided with the secondary elastic rod 010 that some bending extensions are arranged, and on secondary elastic rod, spacer ring is provided with some fine fleeces 011.This dust suction Shu Caiyong branched structure increases area coverage, and branched structure mainly includes main elastic rod, secondary elastic rod and fine fleece.Wherein secondary elastic rod interval is circumferentially positioned on main elastic rod periphery, makes main elastic rod have the netted covering function of stereochemical structure.So, main elastic rod and secondary elastic rod surface area are greatly increased, and add dust bond area in sound air-flow, improve dust adsorption effect.Because interval is surrounded with some fine fleeces on secondary elastic rod, therefore fine fleece has bigger surface area, fundamentally improves the adsorption efficiency to dust and effect, namely substantially increases the pick-up performance of dust suction bundle.
Bracing frame 14 it is installed with in hole, upper strata.Bracing frame can be set in hole, upper strata, be equivalent to outside fine-structure mesh cloth, be provided with a netted protective layer, the most do not affect the transmission of sound, it is also possible to play the effect preventing fine-structure mesh cloth from being scratched, namely the effect of protection fine-structure mesh cloth.
Fix outside bracing frame and be pasted with Air Filter 15.Result in blockage on fine-structure mesh cloth to prevent the impurity in air-flow from being pasted by bracing frame, Air Filter it is pasted with outside bracing frame, impurity can be filtered, it is ensured that this MEMS cigar lighter is with built-in shock resistance and the sensitivity of highly sensitive voice operated sensor and life-span after Air Filter is set.
Hole, described middle level is the conical bore that little the inner, outer end is big.Because hole, middle level is the conical bore that inner big outer end is little, when therefore outer gas stream enters this utility model, by first passing through less outer stomidium the most again by bigger interior stomidium, finally this utility model inner chamber could be entered.At air-flow from less outer stomidium to relatively imperial palace stomidium flow process, airflow passes aisle spare can become larger, and air-flow can gradually extend out.On the premise of air-flow total amount is certain, the air velocity flowing out conical bore can thereby serve to reduction of speed effect significantly lower than the air velocity of entrance conical bore, greatly reduced the impact to vibrating diaphragm.As a same reason, when air-flow flows to less outer end from bigger conical bore the inner, although flow out the air velocity of conical bore quickly, but air velocity inside this utility model outwardly is the most relatively low, it is ensured that the safety in utilization of vibrating diaphragm.
Gasket ring peripheral ring is provided with the metal level 16 corresponding with lead-out terminal, with the metal connection dish 17 being installed with on the pcb board of middle level by metal level electrical connection corresponding with bottom pcb board outside the pcb board of upper strata.
After arranging metal level on gasket ring, the signal of telecommunication just can be transmitted to middle level pcb board by bottom pcb board by metal level, serves the effect of the transmission signal of telecommunication.Outside the pcb board of upper strata and it is installed with the metal connection dish of correspondence on the pcb board of middle level, metal connection dish is by metal level electrical connection corresponding with the lead-out terminal of bottom pcb board, thus be equivalent to be also provided with a set of lead-out terminal at upper strata pcb board, the most just can carry out the output of signal at end face of the present utility model and bottom surface respectively, greatly facilitate application of the present utility model.
In this patent, described lead-out terminal includes light terminal 012 and hot terminal 013, bottom pcb board bottom surface is fixedly provided with the plus end 014 and negative terminal 015 powered to MEMS sensor and asic chip, it is electrically connected with electroluminescent lamp 016 between light terminal and negative terminal, between hot terminal and negative terminal, is electrically connected with heater strip 017.Bottom pcb board has been fixedly mounted on the bottom surface with plus end and negative terminal, plus end is with negative terminal by the electrical connection corresponding with the power end of MEMS sensor and asic chip with deposited copper of the via on bottom pcb board, and therefore the external circuit of cigar lighter can be powered to MEMS sensor and asic chip by plus end and negative terminal.Electric capacity of voltage regulation 018 it is electrically connected with between plus end and negative terminal, the Main Function of electric capacity of voltage regulation is the voltage between stable plus end and negative terminal, thus avoid because mains voltage variations causes the problem of MEMS sensor misoperation, improve the reliability of sensing.In this utility model patent, lead-out terminal includes light terminal and hot terminal, is wherein electrically connected with electroluminescent lamp between light terminal and negative terminal, is electrically connected with heater strip between hot terminal and negative terminal.When people start to aspirate electronic cigarette, the outside suction sound produced and air-flow can trigger MEMS sensor action, MEMS sensor can pass through asic chip driven for emitting lights lamp and heating wire works, heater strip can promote electronic cigarette to produce haze effect, and electroluminescent lamp can make electronic cigarette have the visual effect of burning.When people stop suction, MEMS sensor does not has induced signal, and electroluminescent lamp is the most luminous, and heater strip does not heats, and the visual effect that now electronic cigarette does not the most burn also will not produce smog.
In the present embodiment, bottom pcb board is provided with through bottom hole 019, is correspondingly arranged bottom bottom hole and MEMS sensor.After bottom pcb board arranges bottom hole, arrange because bottom hole is through bottom pcb board, so, hole, middle level, gasket ring inner chamber and bottom hole just constitute a passage connected, when aspirating electronic cigarette, suction airstream is more smooth and easy, is more beneficial for the change of sound air-flow when MEMS sensor detects suction, and sensitivity is higher.Arrange to be correspondingly arranged with MEMS sensor by bottom hole, it is possible to use MEMS sensor itself makes above-mentioned passage carry out break-in, thus serves the effect of buffer gas flow, have and avoid, because the impact of big air-flow when firmly aspirating, serving protective effect.
In the present embodiment, MEMS sensor uses the sensor that model is NJD3002W that JRC company of Japan produces, and asic chip uses the chip that model is NJU72082 that JRC company of Japan produces, and its structure and operation principle belong to known technology, not described in detail herein.
Claims (9)
- null1. a MEMS cigar lighter built-in shock resistance and highly sensitive voice operated sensor，It is characterized in that: include bottom pcb board (1)，Bottom pcb board (1) middle part is welded with MEMS sensor (2) and asic chip (3)，The outfan of MEMS sensor (2) is by holding wire (4) electrical connection corresponding with the input of asic chip (3)，The outfan of asic chip (3) is by output lead (5) electrical connection corresponding with the lead-out terminal of bottom pcb board (6)，Upper the fixing of bottom pcb board (1) is pasted with gasket ring (7)，Gasket ring (7) top is fixing is pasted with middle level pcb board (8)，Middle level pcb board (8) is provided with hole, middle level (9)，The supporting network (10) of the outside round and smooth protrusion in middle part it is installed with in hole, middle level (9)，Middle level pcb board (8) end face of hole, middle level (9) periphery and upper the fixing of supporting network (10) are coated with fine-structure mesh cloth (11)，Middle level pcb board (8) end face is fixedly provided with upper strata pcb board (12)，Upper strata pcb board (12) middle part is provided with the upper strata hole (13) corresponding with hole, middle level (9)，Gasket ring (7) inner chamber is provided with the internal ring (001) of ladle cover MEMS sensor (2) and asic chip (3)，First end of internal ring (001) is arranged towards hole, middle level (9)，Second end of internal ring (001) is installed with the weldering pawl (002) welded together with bottom pcb board (1) inwall，First end of internal ring (001) is coaxially installed with the collection acoustic shell (003) arranged towards MEMS microphone (2) sound hole，Collection acoustic shell (003) is in towards thinner coniform of the thicker other end in hole, middle level (9) one end，Elastic screen cloth (004) it is equipped with in the middle part of collection acoustic shell (003) inwall，The screen cloth hole (005) of through setting it is evenly equipped with on elastic screen cloth (004)，It is evenly equipped with, on collection acoustic shell (003) inwall in hole, middle level (9), the dust suction bundle (008) that dust can be adsorbed.
- A kind of MEMS cigar lighter built-in shock resistance and highly sensitive voice operated sensor the most as claimed in claim 1, it is characterized in that: be fixedly provided with, in the middle part of collection acoustic shell (003) inwall, the circular cone guard (006) that tip is arranged towards hole, middle level (9), circular cone guard (006) is positioned at the side in the close hole, middle level (9) of elastic screen cloth (004), and circular cone guard (006) is evenly equipped with the guard hole (007) of through setting.
- A kind of MEMS cigar lighter built-in shock resistance and highly sensitive voice operated sensor the most as claimed in claim 1, it is characterized in that: described dust suction bundle (008) includes the main elastic rod (009) that bending extension is arranged, the upper spacer ring of main elastic rod (009) is provided with the secondary elastic rod (010) that some bending extensions are arranged, and the upper spacer ring of secondary elastic rod (010) is provided with some fine fleeces (011).
- 4. a kind of MEMS cigar lighter built-in shock resistance and the highly sensitive voice operated sensor as described in claim 1-3 any claim, is characterized in that: be installed with bracing frame (14) in hole, upper strata (13).
- A kind of MEMS cigar lighter built-in shock resistance and highly sensitive voice operated sensor the most as claimed in claim 4, is characterized in that: bracing frame (14) outside is fixing is pasted with Air Filter (15).
- A kind of MEMS cigar lighter built-in shock resistance and highly sensitive voice operated sensor the most as claimed in claim 5, is characterized in that: hole, described middle level (9) is the conical bore that little the inner, outer end is big.
- A kind of MEMS cigar lighter built-in shock resistance and highly sensitive voice operated sensor the most as claimed in claim 6, it is characterized in that: gasket ring (7) peripheral ring is provided with the metal level (16) corresponding with lead-out terminal, and upper strata pcb board (12) outside and middle level pcb board (8) are installed with the metal connection dish (17) by metal level (16) electrical connection corresponding with bottom pcb board (1).
- A kind of MEMS cigar lighter built-in shock resistance and highly sensitive voice operated sensor the most as claimed in claim 7, it is characterized in that: described lead-out terminal (6) includes light terminal (012) and hot terminal (013), bottom pcb board bottom surface is fixedly provided with the plus end (014) and negative terminal (015) powered to MEMS sensor (2) and asic chip (3), electroluminescent lamp (016) it is electrically connected with between light terminal (012) and negative terminal (015), heater strip (017) it is electrically connected with between hot terminal (013) and negative terminal (015), electric capacity of voltage regulation (018) it is electrically connected with between plus end (014) and negative terminal (015).
- A kind of MEMS cigar lighter built-in shock resistance and highly sensitive voice operated sensor the most as claimed in claim 8, it is characterized in that: bottom pcb board (1) is provided with through bottom hole (019), bottom hole (019) is correspondingly arranged with MEMS sensor (2) bottom.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620288858.7U CN205566636U (en) | 2016-04-09 | 2016-04-09 | MEMS cigar lighter shocks resistance and high voice control sensor of sensitivity with built -in |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620288858.7U CN205566636U (en) | 2016-04-09 | 2016-04-09 | MEMS cigar lighter shocks resistance and high voice control sensor of sensitivity with built -in |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106579667A (en) * | 2017-02-16 | 2017-04-26 | 深圳市热火科技有限公司 | Control system based on smart bracelet |
| CN113464888A (en) * | 2021-07-07 | 2021-10-01 | 雷旭东 | Waterproof dirt-proof beverage bottle lamp based on chargeable acoustic control |
-
2016
- 2016-04-09 CN CN201620288858.7U patent/CN205566636U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106579667A (en) * | 2017-02-16 | 2017-04-26 | 深圳市热火科技有限公司 | Control system based on smart bracelet |
| CN113464888A (en) * | 2021-07-07 | 2021-10-01 | 雷旭东 | Waterproof dirt-proof beverage bottle lamp based on chargeable acoustic control |
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