CN105611012A - Mobile terminal - Google Patents
Mobile terminal Download PDFInfo
- Publication number
- CN105611012A CN105611012A CN201610061461.9A CN201610061461A CN105611012A CN 105611012 A CN105611012 A CN 105611012A CN 201610061461 A CN201610061461 A CN 201610061461A CN 105611012 A CN105611012 A CN 105611012A
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- China
- Prior art keywords
- microphone
- waterproof membrane
- hole
- support
- radio reception
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/04—Supports for telephone transmitters or receivers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/08—Mouthpieces; Microphones; Attachments therefor
- H04R1/083—Special constructions of mouthpieces
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Telephone Set Structure (AREA)
Abstract
The invention provides a mobile terminal. The mobile terminal provided by the invention comprises a shell; a pickup hole is formed in the shell; a microphone, a circuit board, a waterproof membrane bracket, a waterproof membrane and a sound receiving bracket are arranged in the inner cavity of the shell; the waterproof membrane is stuck on the waterproof membrane bracket and is supported against the pickup hole which is located at the inner sidewall of the shell; the microphone is arranged on the circuit board; a sound receiving through hole which is opposite to the waterproof membrane is formed in the waterproof membrane bracket; the sound receiving bracket is connected with the shell; the sound receiving bracket is provided with a through hole; one end of the through hole is opposite to the sound receiving through hole of the waterproof membrane bracket while the other end thereof is opposite to the receiving end of the microphone, so that a sound conduction channel is formed between the pickup hole and the receiving end of the microphone; and the circuit board is electrically connected with the microphone to drive the microphone to receive sound. According to the mobile terminal, a microphone sealing and waterproof structure with good sealing and high reliability can be realized.
Description
Technical field
The present invention relates to mobile terminal technology, relate in particular to a kind of mobile terminal.
Background technology
At present, universal along with mobile terminals such as mobile phones, mobile terminal three anti-(dustproof, waterproof,Shatter-resistant) performance more and more comes into one's own. Wherein, the water resistance of the mobile terminal such as mobile phone is to close alwaysFocus on one of point.
Current, the housing of the mobile terminal outsides such as mobile phone is integral seal structure, on housing, offer byKeyway and confession microphone carry out the pickup hole of pickup etc. Wherein, the pickup hole of microphone is positioned at mobile phone shellThe end of body, and be generally the through hole that runs through outside in handset shell, in order to prevent handset shell outsideLiquid enter enclosure interior from pickup hole, be conventionally provided with microphone waterproof knot at positions such as pickup holesStructure, to carry out waterproof sealing processing to microphone place. Fig. 1 is that the microphone that has in prior art is preventedThe mobile terminal structure schematic diagram of water-bound. As shown in Figure 1, conventionally, the microphone of mobile terminalWaterproof construction specifically comprise first by waterproof screen cloth or waterproof membrane 101, silica gel sheath 102, microphone 103,Soft arranging wire 104 and circuit board 106 etc., waterproof membrane 101 sticks on the pickup hole of handset shell inner side105 inner side place, recycling silica gel sheath 102 or foam seal up microphone 103, and by MikeWind 103 is installed in the position near pickup hole 105, and silica gel sheath 102 or foam are around in microphoneAround 103, so that microphone 103 is sealed up, and waterproof membrane 101 and silica gel sheath form jointly with shapeBecome leading note passage, microphone 103 joins with one end of soft arranging wire 104, soft arranging wire 104 another terminationsTo on the electroconductive elastic sheet 107 relative with circuit board 106, electroconductive elastic sheet 107 conducting soft arranging wires 104 withCircuit board 106, thus realize being electrically connected of microphone 103 and circuit board 106. External sound like thisAfter being entered by pickup hole 105, conduct to microphone 103 places, wheat through the hole on silica gel sheath 102Gram wind transfers voice signal to the signal of telecommunication, and by with soft arranging wire 104 and electroconductive elastic sheet 107 by telecommunicationsNumber pass on circuit board 106.
But the hermetic water-proof structure of microphone has following deficiency in prior art: first, because ofFor mobile terminal shell inner space is narrow and small, be difficult for assembling, and waterproof membrane inner side and microphone outsideSilica gel sheath contacts, so in the time pasting waterproof membrane, easily produce sealing not because assembling is not in placeEvenly and fold phenomenon, when microphone occurs when loosening, also may further drive waterproof membrane to produce pleatWrinkle or slippage, affect the waterproof sealing effect of microphone. Secondly, because between microphone and circuit boardEmploying soft arranging wire connects, in the time that microphone assemble, easy because of the length restriction of soft arranging wire produce deflection,Inclination waits assembling incomplete phenomena, impact sealing uniformity, and easy between soft arranging wire and electroconductive elastic sheetProduce movement because of the displacement of microphone self, cause connecting staggered between electroconductive elastic sheet and soft arranging wireOr disconnect. So easy generation loose contact or leak sound phenomenon, affects microphone to voice signalCollection effect.
Summary of the invention
The invention provides a kind of mobile terminal, can realize good microphone waterproof sealing effect, and closeEnvelope reliability is high.
The invention provides a kind of mobile terminal, mobile terminal comprises housing, offers pickup hole on housing,In the inner chamber of housing, be provided with microphone, circuit board, waterproof membrane support, waterproof membrane and radio reception support; Anti-Moisture film is sticked on waterproof membrane support, and waterproof membrane is against the pickup hole place of housing madial wall, and microphone is establishedPut on circuit board, waterproof membrane support has the radio reception through hole relative with waterproof membrane, on radio reception support, arrangesHave through hole, through hole one end is relative with the radio reception through hole of waterproof membrane support, the callee of the other end and microphoneRelatively, jointly formed by radio reception through hole and through hole with formation between pickup hole and the callee of microphoneLeading note passage; Circuit board and microphone electrical connection, to drive microphone to gather sound.
Mobile terminal provided by the invention, comprises housing, offers pickup hole on housing, mobile terminal shellIn the inner chamber of body, be provided with: microphone, circuit board, waterproof membrane support, waterproof membrane and radio reception support; Anti-Moisture film is sticked on waterproof membrane support, and waterproof membrane is against the pickup hole place of housing madial wall, and microphone is establishedPut on circuit board, waterproof membrane support has the radio reception through hole relative with waterproof membrane, on radio reception support, arrangesHave through hole, through hole one end is relative with the radio reception through hole of waterproof membrane support, the callee of the other end and microphoneRelatively, jointly formed by radio reception through hole and through hole with formation between pickup hole and the callee of microphoneLeading note passage; Circuit board is electrically connected with microphone, to drive microphone to gather sound. With microphone is straightConnects and be sticked in waterproof membrane one side, and the existing mode of utilizing soft arranging wire that microphone is connected with circuit board compares,Can waterproof membrane on pickup hole be realized and being fixedly secured like this, and the callee of pickup hole and microphone itBetween leading note passage is set, the microphone that makes to be arranged on circuit board receives from mobile terminal shell pickupThe sound in hole. On the one hand, waterproof membrane is first fixed on waterproof membrane support, then by waterproof membrane support and housingRelatively fixing, thus waterproof membrane is folded between the binding face and housing madial wall of waterproof membrane support, thisSample, owing to being easy to laminating between waterproof membrane support and waterproof membrane, can make waterproof membrane flat in the time pasting, there is fold in whole expansion, and waterproof membrane support can be supported in the one side of waterproof membrane while preventing from assembling,Waterproof membrane is fitted with the housing madial wall of mobile terminal securely, and the two sides of waterproof membrane all obtains like thisFix and support, being difficult for producing and becoming flexible and displacement, its waterproof sealing performance is good; On the other hand, adopt byThe leading note passage that waterproof membrane support and radio reception internal stent are offered is realized pickup hole and is passed to the sound of microphonePass, microphone needn't be arranged on pickup hole place, but is directly mounted on circuit board Mike like thisWind can not produce relative displacement with circuit board, and its electrical connection form is reliable and stable, has effectively avoided microphoneThe phenomenons such as loose contact.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below will be to realityThe accompanying drawing of executing required use in example or description of the Prior Art is briefly described, apparently, underAccompanying drawing in face description is some embodiments of the present invention, for those of ordinary skill in the art,Do not pay under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the waterproof construction schematic diagram of Mike in the mobile terminal of prior art;
The structural representation of the mobile terminal that Fig. 2 A provides for the embodiment of the present invention one;
The structural representation of the mobile terminal inner chamber that Fig. 2 B provides for the embodiment of the present invention one;
The schematic cross-section of the mobile terminal inner chamber that Fig. 2 C provides for the embodiment of the present invention one;
Fig. 2 D is the scheme of installation of the waterproof membrane that provides of the embodiment of the present invention one;
Fig. 2 E is the scheme of installation of the waterproof membrane support that provides of the embodiment of the present invention one;
Fig. 2 F is the section signal of the embodiment of the present invention one leading note passage while providing in radio reception support as straight holeFigure;
Fig. 2 G is the section of leading note passage during for bent hole in the radio reception support that provides of the embodiment of the present invention oneSchematic diagram;
Fig. 2 H is that the microphone that provides of the embodiment of the present invention one and the first sealing means of radio reception support cut openFace schematic diagram;
Fig. 2 I is that the microphone that provides of the embodiment of the present invention one and the second sealing means of radio reception support cut openFace schematic diagram;
Fig. 2 J is that the microphone that provides of the embodiment of the present invention one and the third sealing means of radio reception support cut openFace schematic diagram.
Detailed description of the invention
For making object, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with thisAccompanying drawing in bright embodiment, is clearly and completely described the technical scheme in the embodiment of the present invention,Obviously, described embodiment is the present invention's part embodiment, instead of whole embodiment. Based onEmbodiment in the present invention, those of ordinary skill in the art obtain not making under creative work prerequisiteThe every other embodiment obtaining, belongs to the scope of protection of the invention.
The structural representation of the mobile terminal that Fig. 2 A provides for the embodiment of the present invention one. As shown in Figure 2 A,Mobile terminal described in the present embodiment comprises housing 10, and housing 10 is generally enclosed construction, and housingOn 10, offer pickup hole 11, pickup hole 11 communicates with the inner chamber 12 of housing 10, can be by mobile terminalOutside sound imports housing 10 inside into. Concrete, in order to consider water resistance, the shell of mobile terminalBody 10 has good hermetically-sealed construction conventionally, and pickup hole 11 is opened in housing 10 along its length conventionallyEnd position, as the top of housing 10 or bottom, and 11 apertures, pickup hole of offering on housing 10Little, seal to facilitate. General, pickup hole 11 can offer that to become aperture be 1～2mm sizeThrough hole, pickup hole 11 communicates with the inner chamber 12 of housing 10, and imports the sound of external environment condition into inner chamber12 inside, to carry out the collection of mobile terminal to sound.
The structural representation of the mobile terminal inner chamber that Fig. 2 B provides for the embodiment of the present invention one. Fig. 2 C is thisThe schematic cross-section of the mobile terminal inner chamber that inventive embodiments one provides. As shown in Fig. 2 B and Fig. 2 C,In the inner chamber of mobile terminal shell, be provided with: microphone 1, circuit board 2, waterproof membrane support 3, waterproof membrane4 with radio reception support 5;
Common, waterproof membrane support 3 has the binding face of fitting with waterproof membrane 4, and waterproof membrane 4 can pass throughBinding face is sticked on waterproof membrane support 3, and binding face is towards pickup hole 11, and waterproof membrane 4 is against like this11 places, pickup hole of housing 10 madial walls, so that waterproof membrane 4 is folded in waterproof membrane support 3 and housingBetween 10 madial walls, microphone 1 is arranged on circuit board 2, and radio reception support 5, waterproof membrane support 3And it is fixing that relative position between microphone 1 keeps, for example waterproof membrane support 3 be fixed on housing 10 inIn chamber, circuit board 2 also can be connected with housing 10 with radio reception support 5; Waterproof membrane support 3 has and waterproofThe radio reception through hole that film 4 is relative, is provided with through hole on radio reception support 5, through hole one end and waterproof membrane support 3Radio reception through hole relative, the other end is relative with the callee of microphone 1, with at pickup hole 11 and microphoneBetween 1 callee, form the leading note passage jointly being formed by radio reception through hole and through hole;
Microphone 1 is arranged on circuit board 2, and microphone 1 is electrically connected with circuit board 2, circuit board 2Can drive microphone 1 to work by electrical connection, and make microphone 1 carry out sound collection function.
Concrete, after waterproof membrane 4 is fixed on waterproof membrane support 3, then be covered on housing 10 madial walls11 places, pickup hole, waterproof membrane 4 is generally made up of macromolecular material, such as polytetrafluoroethylene (PTFE) etc., it hasThe effect of waterproof and breathable. Because the hole on waterproof membrane 4 surfaces is very tiny, under the state of steam, waterParticle is very tiny, and under capillarity, the molecule of water can be penetrated into smoothly capillary and arrive anotherSide, thus vapour phenomenon be there is. When steam condensation becomes after the globule, it is large that particle becomes, due to globule surfaceThe effect of tension force, hydrone just can not depart from smoothly the globule and be penetrated into opposite side, thereby plays waterproof effect.The common thickness of waterproof membrane 4 is thinner, in the time that waterproof membrane 4 pastes on pickup hole 11, and pickup hole 11 place's shapesBecome a rete. In the time that external sound enters and deliver to waterproof membrane 4 place by pickup hole, rete produces accordinglyVibration, thus transmission sound is arrived to the side of waterproof membrane 4 towards the inner chamber 12 of housing 10.
Optionally, waterproof membrane 4 also can adopt waterproof net cloth to make. Waterproof screen cloth has good permeability etc.Advantage, and structural strength is better, in the time that foreign matter enters pickup hole 11, if the waterproof of housing 10 inner sidesFilm 4 is polytetrafluoroethylene (PTFE) waterproof membrane, may because of film thickness compared with little and produce disrepair phenomenon, and asFruit adopts the waterproof screen cloth that structural strength is high, the disrepair phenomenon that can avoid foreign matter to cause.
Concrete, because waterproof membrane 4 is generally softer, so carrying out waterproof membrane 4 and waterproof membrane support 3Assembly work time, need first waterproof membrane 4 is pasted on waterproof membrane support 3, then pass through special toolingFixture is bonded to waterproof membrane 4 and waterproof membrane support 3 11 places, pickup hole of housing 10 madial walls together,Thereby complete the bonding assembly work between three.
Conventionally,, in order to ensure the sealing effectiveness between waterproof membrane 4 and housing 10, utilizing waterproof membrane support3 arrange waterproof membrane 4 to 11 places, pickup hole of housing 10 madial walls, also need logical waterproof membrane 4Cross be laid in 11 places, pickup hole of housing 10 madial walls of binding agent. Fig. 2 D is that the embodiment of the present invention one providesThe scheme of installation of waterproof membrane. As shown in Figure 2 D, bonding agent generally can adopt the good work of sealingIndustry marine glue. Adopt bonding agent waterproof membrane to be bonded in behind 11 places, pickup hole of housing 10 madial walls, anti-Sealing is filled by bonding agent in seam between moisture film 4 and housing 10 or space, the water that prevents external environment bySeam between waterproof membrane 4 and housing 10 flows into mobile terminal inner chamber, thereby is ensureing sound normal conductionTime, guarantee the waterproof sealing effect of waterproof membrane 4.
In order to ensure being connected between waterproof membrane 4 and the inner chamber 12 of mobile terminal shell 10, need to pass throughWaterproof membrane support 3 is arranged on the side of waterproof membrane 4 away from housing 10 madial walls. Fig. 2 E is that the present invention is realExecute the scheme of installation of the waterproof membrane support that example one provides. As shown in Figure 2 E, waterproof membrane support 3 is generallyLamellar, the side away from housing 10 madial walls that can be sticked easily like this at waterproof membrane 4, and will preventMoisture film 4 fixedly secures between waterproof membrane support 3 and housing 10 madial walls. Like this waterproof membrane 4 be difficult for fromOn housing 10 madial walls, come off, the reliability of waterproof sealing is higher.
Now, in order to strengthen the waterproof sealing of mobile terminal inner chamber 12, waterproof membrane support 3 and waterproof membraneBetween 4, also need to be undertaken by bonding agent bonding, concrete, can be by waterproof membrane support 3 and waterproof membrane 4On the face contacting, apply bonding agent, and waterproof membrane support 3 is bonded in to waterproof membrane 4 away from housing 10One side of sidewall.
Common, in order to ensure the combination effect between waterproof membrane support 3 and waterproof membrane 4, waterproof membrane props upFrame 4 generally has the binding face with waterproof membrane laminating. The area of binding face is larger, and the shape of binding face,Radian all matches with waterproof membrane 4, and in the time that binding face is pressed on waterproof membrane 4, waterproof membrane 4 can like thisAnd between waterproof membrane support 3, combine closely, and waterproof membrane support 3 can tightly be pressed in housing by waterproof membrane 4On 10 madial wall, further to strengthen the sealing effectiveness to waterproof membrane 4. Optionally, waterproof membrane supportOn 3 binding face, positioning bar can also be set, the shape that positioning bar surrounds and waterproof membrane 4 shapes match,Thereby further ensure the position relationship between waterproof membrane 4 and waterproof membrane support 3, prevented waterproof membrane 4There is the phenomenons such as slippage, fold.
In order to be formed for transmitting the passage of sound, on waterproof membrane support 3, have relative with waterproof membraneRadio reception through hole 31, waterproof membrane 4 receives after external sound, through self vibration, by sound via waterproof membraneSupport 3 is passed to the more depths of inner chamber 12. Usually, in order to ensure the conducting effect of sound, waterproof membraneThe radio reception through hole 31 of support 3 is arranged on the center of waterproof membrane 4 conventionally, and radio reception through hole 31 is just to anti-Moisture film support 3. Now, high molecular waterproof membrane 4, because of the amplitude maximum of center, can effectively passPass extraneous acoustical vibration, its transaudient effect is best.
Sound, can be through the through hole of radio reception support 5 inside by after the radio reception through hole 31 of waterproof membrane support 351 conduct to microphone 1 place on circuit board 2. Radio reception support 5 is connected with housing 10, and radio reception is propped upThrough hole 51 one end on frame 5 are relative with the radio reception through hole 31 of waterproof membrane support 3, the other end and microphone1 is relative, so just between the microphone 1 on waterproof membrane 4 and the circuit board 2 on housing 10, forms oneBar leading note passage. Through waterproof membrane 4---leading note passage---, the path of microphone 1 is passed to wheat to soundGram wind 1 place, and received collection by microphone 1, circuit board 2 can drive microphone 1 by electrical connectionWork, and make microphone 1 carry out sound collection function, wherein, circuit board 2 can be printed circuit board (PCB)(Printedcircuitboard is called for short PCB).
Wherein, in order to prevent that sound is occur leaking sound phenomenon in the time that leading note passage conducts, at radio reception support 5One end relative with waterproof membrane support 3 should arrange the first sealing foam 6, the first sealing foams 6 can beBetween the through hole 51 of radio reception support 5 and the radio reception through hole 31 of waterproof membrane support 3, carry out effective sealing, anti-Only sound overflows from the gap between radio reception support 5 and waterproof membrane 4.
Like this microphone 1 is set directly on circuit board 2, and adopts the leading note in radio reception support 5 logicalRoad carries out acoustic, with the position in prior art, microphone being arranged near housing, and utilizes soft arranging wireAnd shell fragment method that microphone is connected with circuit board, because microphone 1 can directly be welded on circuit board 2Upper, thus the assembly difficulty of production line can effectively be reduced, and enhance productivity.
In the present embodiment, mobile terminal comprises housing, offers pickup hole, mobile terminal shell on housingInner chamber in be provided with: microphone, circuit board, waterproof membrane support, waterproof membrane and radio reception support; WaterproofFilm is sticked on waterproof membrane support, and waterproof membrane is against the pickup hole place of housing madial wall, microphone settingOn circuit board; Waterproof membrane support has the radio reception through hole relative with waterproof membrane, and radio reception support and housing connectConnect, on radio reception support, be provided with through hole, through hole one end is relative with the radio reception through hole of waterproof membrane support, anotherHold relative with the callee of microphone, to form leading note passage between pickup hole and the callee of microphoneCircuit board is electrically connected with microphone, to drive microphone to gather sound. With routine, microphone is sticked anti-Moisture film one side, and the mode of utilizing soft arranging wire that microphone is connected with circuit board compares, and like this can be to pickupWaterproof membrane on hole is realized and being fixedly secured, and it is logical that leading note is set between pickup hole and the callee of microphoneRoad, the microphone that makes to be arranged on circuit board receives the sound from mobile terminal shell pickup hole. OneAspect, waterproof membrane is first fixed on the binding face of waterproof membrane support, then waterproof membrane support is relative with housingFixing, thus waterproof membrane is folded between the binding face and housing madial wall of waterproof membrane support, like this byBe easy to laminating in binding face, can make waterproof membrane smooth expansion in the time pasting, while preventing from assembling, go outExisting fold, and waterproof membrane support can be supported in the one side of waterproof membrane, make waterproof membrane securely with movementThe housing madial wall of terminal fits, and the two sides of waterproof membrane is all fixed and supports like this, is difficult for producingBecome flexible and displacement, its waterproof sealing performance is good; On the other hand, adopt by waterproof membrane support and radio reception supportThe leading note passage that inside is offered is realized the transmission sound of pickup hole to microphone, and microphone needn't be arranged on and pick upSound hole place, but be directly mounted on circuit board, microphone can not produce relative with circuit board like thisDisplacement, its electrical connection form is more reliable and more stable, has effectively avoided the phenomenons such as microphone loose contact.
Concrete, carry out the transmission of sound in mobile terminal inner chamber 12 time, for mobile terminal internal junctionThe difference of structure, its leading note passage can have different implementations, below describes respectively.
As a kind of possible embodiment, the through hole 51 on radio reception support 5 is straight hole, i.e. radio reception supportOne end that through hole 51 on 5 is relative with waterproof membrane 4 and one end relative with microphone 1 are in alwaysOn line. Fig. 2 F is the section signal of the embodiment of the present invention one leading note passage while providing in radio reception support as straight holeFigure. As shown in Figure 2 F, the through hole 51 on radio reception support 5 is a straight hole, and straight hole one is rectified anti-Moisture film 4, and the other end is relative with microphone 1. Now, because through hole 51 inside of radio reception support 5 notThere is bending and turning, so can unhinderedly be passed to wheat along this straight hole from the sound of waterproof membrane 4Gram wind 1 place, has avoided the loss of voice signal in through hole 51, thereby has made the transmission efficiency of sound higher.
As the possible embodiment of another kind, the through hole 51 of radio reception support 5 inside can also be bent hole.Fig. 2 G is the section signal of leading note passage during for bent hole in the radio reception support that provides of the embodiment of the present invention oneFigure. As shown in Figure 2 G, at the through hole 51 of radio reception support 5 inside, it is along the section of length bearing of trendBe shaped as L shapedly, this through hole is " L " shape hole. This kind of leading note passage can facilitate the layout of microphone 1Put. Because the circuit board of mobile terminal inside 2 is arranged along the length direction of housing 10 conventionally, so logicalWhen hole 51 adopts " L " shape hole, through hole 51 one end of radio reception support 5 inside and housing 10 tops or the endThe waterproof membrane 4 that end arranges is relative, and the just in time front of face circuit board 2 of the other end now can be byMicrophone 1 is arranged on front or the rear side of circuit board 2, and can between microphone 1 and circuit board 2To be directly welded to connect, and do not need other support to be fixed.
It should be noted that, the through hole 51 of radio reception support 5 inside can be more section shape, but logicalWhen hole is bent hole, should avoid the bending of inside, hole or turning too much, as section hole that is serpentine etc.,More because of its internal bend, while causing sound to import through hole 51 inside into, acoustic reflection is too much, and occurs mixedThe phenomenons such as sound, interference, and form decay or the interference of voice signal. Preferably, radio reception support 5 insideThrough hole should taking without turning or a turning as preferred version.
In above-mentioned two kinds of possible embodiments, the through hole 51 of radio reception support 5 inside all should ensure interior tableFace is comparatively smooth, roughness is lower, and the length of through hole is shorter as far as possible, to avoid sound to prop up in radio receptionRelaxation phenomenon while conduction in the through hole of frame, improves transmission sound efficiency.
In addition, it should be noted that through hole 51 apertures of radio reception inside 5 and the radio reception of waterproof membrane support 3Through hole 31 apertures all should have suitable size dimension, if aperture is excessive, may causes and can cause leakageSound; If aperture is too small, the sound transmitting is less, may make microphone 1 gather or identification soundSound.
General, radio reception support 5 is connected with the housing 10 of mobile terminal. Concrete, radio reception support 5Can and housing 10 between be connected by buckle or screw, for example adopt screw and buckle jointly radio reception to be propped upFrame 5 is fixed in mobile terminal shell 10, or also can adopt screw and double faced adhesive tape to realize radio reception support 5And between housing 10, position is fixing. Now, the position between radio reception support 5 and housing 10 is relative solidFixed, can effectively avoid radio reception support 5 to occur moving time, form waterproof membrane support 3, the receipts of leading note passageBetween sound support 5 and microphone 1, produce relative displacement and gap, and cause poor sealing and leak sound phenomenon.
Further, radio reception support 5 can be set to integrative-structure with loudspeaker support. Because eventually mobileHold inner space less, so may be difficult to hold an independently radio reception support 5. Now, canBe provided for transaudient through hole at the inner existing loudspeaker support of mobile terminal or antenna holder inside,And by the portion of external shape of loudspeaker support be designed to waterproof membrane support and circuit board 2 on microphone 1The pattern matching, thus realize the integral structure of radio reception support 5 and loudspeaker support. Adopt oneAfter formula structure, can effectively utilize existing region and the parts of mobile terminal inside, effectively save leading noteTaking up room of passage.
Concrete, between microphone 1 and circuit board 2, also can adopt various ways to be fixed connection.For example, in a kind of possible embodiment, microphone 1 can be arranged on circuit board 2 and just radio reception propped upThe one side of frame 5, now, microphone 1 is welded on circuit board 2 by pad, and the sound of microphone 1Sound input is just corresponding with the through hole 51 of radio reception support 5. This fixing means is comparatively easy, is applicable toBefore all kinds of, go out formula microphone.
Or, in the possible embodiment of another kind, also can adopt and to carry on the back out formula microphone and carry out soundGather. Microphone 1 is when carrying on the back out formula microphone, and microphone 1 is arranged on propping up away from radio reception of circuit board 2One side of frame 5, is provided with the MIC 21 that runs through circuit board 2 on circuit board 2, MIC 21 is positioned atBetween the callee of leading note passage and microphone 1, for importing microphone into from the sound of leading note passageIn 1. Now, on circuit board 2, just in the region of the through hole 51 to radio reception support 5, be provided with MIC 21,MIC 21, for running through the through hole of circuit board 2, after sound is spread out of by through hole 51, can pass through this radio receptionHole 21, is passed to microphone 1 place that is positioned at circuit board 2 another sides, so that microphone 1 receives soundSignal. When formula microphone is carried on the back out in employing, can effectively utilize waterproof membrane support 3 and 5 shapes of radio reception supportThe leading note passage becoming, makes the annexation between microphone 1 and circuit board 2 be connected for conventional, Ji KebaoThe normal radio reception that card is carried on the back out formula microphone.
In order to ensure to there is good sealing between microphone 1 and radio reception support 5, prevent that sound is from MikeLeak gap between wind 1 and radio reception support 5, causes sound phenomenon with Louing, need to be at radio reception support 5 andBetween microphone 1, take seal approach. Conventionally, can between circuit board 2 and radio reception support 5, arrangeThe second sealing foam 7. Fig. 2 H is the microphone that provides of the embodiment of the present invention one and the first of radio reception supportSealing means generalized section. As shown in Fig. 2 H, the second sealing foam 7 is folded in radio reception support 5 and electricityBetween road plate 2, when microphone 1 is when carrying on the back out formula microphone, the second sealing foam 7 is at radio reception support 5Through hole 51 and the MIC 21 of circuit board 2 between there is the hole for transmitting sound. And hole weekEnclose and sealed by the second sealing foam 7 bodies, to prevent sound effusion. Fig. 2 I is the embodiment of the present invention oneThe second sealing means generalized section of the microphone providing and radio reception support. As shown in Fig. 2 I, work as wheatGram wind 1 is when front going out formula microphone, and the second sealing foam 7 is provided with hole in microphone 1 surrounding, andSecond sealing foam 7 body have been filled hole space around, with by the through hole of radio reception support 5 51 untilSpace sealing between circuit board 2 gets up, and ensures that sound can be between radio reception support 5 and circuit board 2Overflow.
Optionally, in the time of the sealing ensureing between radio reception support 5 and microphone 1, also can adopt otherSeal approach, as gum cover etc. seals. Fig. 2 J is microphone and the radio reception that the embodiment of the present invention one providesThe third sealing means generalized section of support. As shown in Fig. 2 J, at circuit board 2 and radio reception support 5Between be provided with gum cover 8, gum cover 8 is for holding microphone 1. Gum cover 8 can adopt the sealings such as silica gelGood, and the stronger material of plasticity is made. The size of gum cover 8 is more bigger than the appearance and size of microphone 1,Microphone 1 can be contained in wherein like this, and the opening of gum cover 8 be conventionally close to radio reception support 5 orThe plane layout of person's circuit board 2, to form a sealing surface. Sealing face and gum cover 8 bodies jointly willMicrophone 1 is contained in wherein, thereby microphone 1 is sealed in to one independently in confined space. This is closeClosing space can limit the sound from radio reception support 5 in the inner, prevents that sound from escaping into circuit board 2Other position of outer or mobile terminal. Utilize like this gum cover 8 that microphone 1 is contained in wherein, its shapeThe confined space becoming is little, can effectively avoid leak sound phenomenon to produce.
Finally it should be noted that: above each embodiment is only in order to technical scheme of the present invention to be described, but not rightIts restriction; Although the present invention is had been described in detail with reference to aforementioned each embodiment, this area commonTechnical staff is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified,Or some or all of technical characterictic is wherein equal to replacement; And these amendments or replacement, andDo not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (9)
1. a mobile terminal, is characterized in that, described mobile terminal comprises: housing, and on described housingOffer pickup hole, in described housing, be provided with: microphone, circuit board, waterproof membrane support, waterproof membraneWith radio reception support;
Described waterproof membrane is sticked on described waterproof membrane support, and described waterproof membrane is against described housing inner sideThe pickup hole place of wall, described microphone is arranged on described circuit board, and described waterproof membrane support has and instituteState the radio reception through hole that waterproof membrane is relative, on described radio reception support, be provided with through hole, described through hole one end and instituteThe radio reception through hole of stating waterproof membrane support is relative, and the other end is relative with the callee of described microphone, with in instituteState between pickup hole and the callee of described microphone and form leading note passage;
Described circuit board is electrically connected with described microphone, to drive described microphone to gather sound.
2. mobile terminal according to claim 1, is characterized in that, described radio reception support with described inBetween waterproof membrane support, be provided with the first sealing foam.
3. mobile terminal according to claim 1, is characterized in that, described through hole extends along lengthThe section shape of direction is L shaped.
4. according to the mobile terminal described in claim 1-3 any one, it is characterized in that described microphoneFor carrying on the back out formula microphone, described carry on the back out formula microphone be arranged on described circuit board away from described radio reception supportA side, on described circuit board, be provided with the MIC that runs through described circuit board, described MIC is positioned at instituteState between leading note passage and described callee of carrying on the back out formula microphone.
5. mobile terminal according to claim 4, is characterized in that, described circuit board and described receiptsBetween sound support, be provided with the second sealing foam.
6. according to the mobile terminal described in claim 1-3 any one, it is characterized in that described circuit boardAnd between described radio reception support, be provided with gum cover, described gum cover is used for holding described microphone.
7. according to the mobile terminal described in claim 1-3 any one, it is characterized in that, described radio reception is propped upBetween frame and described housing, be connected by buckle or screw.
8. according to the mobile terminal described in claim 1-3 any one, it is characterized in that, described radio reception is propped upFrame and loudspeaker support are structure as a whole.
9. according to the mobile terminal described in claim 1-3 any one, it is characterized in that described waterproof membraneBy the be laid in pickup hole place of described housing madial wall of binding agent.
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| CN201610061461.9A CN105611012B (en) | 2016-01-29 | 2016-01-29 | Mobile terminal |
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| CN201610061461.9A CN105611012B (en) | 2016-01-29 | 2016-01-29 | Mobile terminal |
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| CN105611012A true CN105611012A (en) | 2016-05-25 |
| CN105611012B CN105611012B (en) | 2019-03-15 |
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| CN201610061461.9A Active CN105611012B (en) | 2016-01-29 | 2016-01-29 | Mobile terminal |
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Address after: 266071 Shandong city of Qingdao province Jiangxi City Road No. 11 Patentee after: Qingdao Hisense Mobile Communication Technology Co.,Ltd. Address before: 266071 Shandong city of Qingdao province Jiangxi City Road No. 11 Patentee before: HISENSE MOBILE COMMUNICATIONS TECHNOLOGY Co.,Ltd. |