CN207612419U - A kind of receiver - Google Patents

Abstract

Include the shell with hollow cavity the utility model discloses a kind of receiver；Hollow cavity is divided into the first cavity and the second cavity by the first tibial membrane of installation on the shell, the first tibial membrane；The segmentation of second cavity is main sounding cavity and installation cavity by the principal oscillation component in the second cavity, principal oscillation component；Correspond on shell on the wall surface of main sounding cavity and the first cavity and offers the first sound outlet hole and the second sound outlet hole respectively；The driving mechanism being arranged in second inner chamber.Driving mechanism drives the vibration of principal oscillation component, the vibration to drive the first tibial membrane to generate vibration by the air in main sounding cavity；The sound that principal oscillation component and the first tibial membrane generate is brought together, first pronunciation vibration of membrane keeps certain lag compared to principal oscillation component, so that the sound that the first tibial membrane generates generates the effect of reverberation with the sound that principal oscillation component generates, so as to improve the low frequency characteristic of receiver, the richness and sense of depth of sound are improved.

Description

A kind of receiver

Technical field

The utility model belongs to electroacoustic switch technology field, and in particular to a kind of receiver.

Background technology

Receiver is also receiver, is a kind of electricity that audio electrical signal is converted into voice signal under voiceless sound leak condition Acoustic device is widely used in the communication terminal devices such as mobile phone, fixed-line telephone and hearing aid, realizes audio (voice, music) It resets.The cardinal principle of receiver is to utilize electromagnetic induction and piezoelectric effect, also the capacitor earphone of advantageous electricity container principle, And mainly there are moving-iron type receiver and moving coil receiver using the receiver of electromagnetic induction principle.Existing moving-iron type receiver Structure, it is mostly a kind of as disclosed in Chinese patent literature CN103747374A that there is the receiver for improveing sandwich type element comprising shell Body, vibrating diaphragm and electromagnetic drive mechanism, vibrating diaphragm are arranged in shell and the inner cavity of shell are divided into ante-chamber and back cavity, and electromagnetism drives Motivation structure is fixed in back cavity.

Electromagnetic drive mechanism includes drive link, armature, two pieces of permanent magnets and coil；Wherein, one end of armature is fixed on On the side wall internal face of shell, the other end is connect by drive link with vibrating diaphragm；Coil is set on armature and close to armature and shell The junction of body, two pieces of permanent magnets are located at armature close to the both sides up and down of that one end of drive link and are fixed on inner walls face On.The receiver of this structure, when to coil indirect current, coil generates alternating magnetic field, while armature is magnetized by alternating magnetic field And the magnetic pole that size and Orientation all alternately changes is generated, under the action of permanent magnet fixed magnetic field so that armature generates different frequencies The vibration of rate and amplitude drives vibrating diaphragm sounding.

But the receiver of above structure is all only gathered around as other receivers in the prior art there are one sounding chamber, Its sound wave generated is mainly the sound wave of medium-high frequency section, and the ability for generating low-frequency sound wave is poor, eventually leads to the called of the structure The low frequency characteristic of device is poor.

Utility model content

Therefore, the technical problem to be solved by the present invention is to existing receiver low frequency characteristic is poor.

For this purpose, the utility model provides a kind of receiver, including

Shell has hollow cavity；

Vibrating diaphragm mechanism, includes installation the first tibial membrane of at least one layer on the housing, and first tibial membrane is by institute It states hollow cavity and is divided into disconnected first cavity and the second cavity；With the principal oscillation group in second cavity Part, the principal oscillation component have the oscillating plate being sealingly mounted on the shell；

Second cavity is divided into first cavity side by side and disconnected main sounding by the principal oscillation component Cavity and installation cavity, the main sounding cavity is close to first tibial membrane side；Correspond to the main hair on the shell The first sound outlet hole and the second sound outlet hole are offered respectively on the wall surface of operatic tunes body and the first cavity；

Driving mechanism is arranged in second cavity, for driving the oscillating plate along perpendicular to the vibrating diaphragm mechanism Setting direction do it is of reciprocating vibration.

Preferably, above-mentioned receiver, first tibial membrane are at least two layers, the first tibial membrane phase described in adjacent two layers Every required spacing；

First cavity is divided into the main sounding cavity side by side and mutually by least two layers first tibial membrane Disconnected at least two sounding cavitys；Correspond on the shell on the wall surface of the secondary sounding cavity and opens up respectively State the second sound outlet hole.

Preferably, above-mentioned receiver further includes and the one-to-one isolated part of the first tibial membrane；The isolation Component is mounted on the outer casing inner wall face, offers be connected to first cavity with the main sounding cavity first thereon Through-hole, first tibial membrane are installed on the housing by being mounted in the first through hole.

Preferably, above-mentioned receiver, the principal oscillation component further includes fixed frame, and one end of the oscillating plate is fixed on On the fixed frame, the other end is vacantly in the inner cavity of the fixed frame；And on the fixed frame and at least by institute State the second tibial membrane that the clearance seal between fixed frame and the oscillating plate covers；

The fixed frame is sealingly mounted on the shell or the fixed frame at least one end is towards first chamber The bending of body direction and seal be fixed on first tibial membrane or the isolated part, the end of the neighboring of the fixed frame Face is sealingly mounted on outer casing inner wall face.

Preferably, above-mentioned receiver, the driving mechanism include installation on the housing and are located at the principal oscillation At least one first permanent magnet of component either side；One end is fixed on the housing, and the other end is fixed on the oscillating plate Soft magnetic bodies, the soft magnetic bodies are opposite with first permanent magnet；And it is set in the coil in the soft magnetic bodies.

It is further preferred that above-mentioned receiver, the driving mechanism further includes the second permanent magnet, second permanent magnet It is located in the main sounding cavity and the installation cavity body with first permanent magnet；Second permanent magnet and described the One permanent magnet one by one with respect to and opposed facing one end polarity it is opposite；

The soft magnetic bodies and the coil are located in the installation cavity body；The principal oscillation component and the soft magnetic bodies are located at Between second permanent magnet and first permanent magnet；Along the direction of vibration of the oscillating plate, the principal oscillation component and institute State the first gap needed for reserving between the second permanent magnet, reserved between the soft magnetic bodies and first permanent magnet needed between second Gap.

It is further preferred that above-mentioned receiver, when the fixed frame one side wall towards the first cavity direction bending simultaneously When being fixed on first tibial membrane or the isolated part；

Along the setting direction of the vibrating diaphragm mechanism, the coil is located at the bending side wall of the fixed frame and the shell Between in the space that surrounds.

Preferably, above-mentioned receiver, the soft magnetic bodies include the mounting portion of installation on the housing；It is molded over described The extension extended on mounting portion and along the setting direction for being parallel to oscillating plate；And it is fixed on the connection on the extension The other end in portion, the interconnecting piece is fixed on the oscillating plate；Along the direction of vibration of the oscillating plate, the extension and institute State third space needed for reserving between oscillating plate.

It is further preferred that above-mentioned receiver, the interconnecting piece is perpendicular to the extension.

Preferably, above-mentioned receiver, the driving mechanism are the piezoelectric vibrator being vacantly mounted in the installation cavity body； The piezoelectric vibrator is connected to the oscillating plate by connector.

Preferably, above-mentioned receiver, the shell include the first shell surrounded by the first bottom surface and side wall, and by the The second shell that two bottom surfaces are surrounded with side wall, the opening of the first shell be located in the opening of the second shell, to enclose At the hollow cavity.

Technical solution provided by the utility model, has the following advantages that：

1. receiver provided by the utility model, including shell, vibrating diaphragm mechanism and driving mechanism.Vibrating diaphragm mechanism includes the One tibial membrane and principal oscillation component；The hollow cavity that shell has by the first tibial membrane be divided into disconnected first cavity and Second cavity；Second cavity is disconnected main sounding cavity and installation cavity by principal oscillation segmentation；Correspond on shell The first sound outlet hole and the second sound outlet hole are offered respectively on the wall surface of main sounding cavity and the first cavity.Driving mechanism driving master shakes Dynamic component vibration, the vibration of principal oscillation component can drive the air in main sounding cavity to be compressed or extended, generate the change of air pressure Change, under the driving of the air pressure of variation, the first tibial membrane generates vibration；Principal oscillation component and the vibration of the first tibial membrane exist respectively Sound is generated in main sounding cavity and the first cavity, the two sound converge after the first sound outlet hole and the second sound outlet hole To together, the sound for generating a mixing is transmitted to the external world.

The vibration frequency of first tibial membrane is consistent with the vibration frequency of principal oscillation component, but principal oscillation component is to pass through sky Gas goes driving the first tibial membrane vibration, thus the first pronunciation vibration of membrane compared to principal oscillation component there are certain lag, this The sound that the first tibial membrane generates is made to generate reverberation with the sound that principal oscillation component generates, to improve the low frequency spy of receiver Property, to improve the richness and sense of depth that receiver generates sound.

2. receiver provided by the utility model, the first tibial membrane is at least two layers, and at least two layers of first tibial membranes are by One cavity is divided at least two sounding cavitys, and the second sound outlet hole is designed in each sounding cavity.

The vibration of the receiver of this structure, principal oscillation component passes sequentially through main sounding cavity, gradually passes to multiple times Corresponding first tibial membrane on sounding cavity, the sound that the vibration of multiple first tibial membranes generates by the second sound outlet hole with The sound that principal oscillation component generates mutually converges, between the sound that reinforcement principal oscillation component and the first tibial membrane of multilayer generate respectively Reverberation effect more effectively improves the low frequency characteristic of receiver.

3. receiver provided by the utility model further includes isolated part, first through hole is offered on isolated part, first Tibial membrane is installed on the shell by being mounted in first through hole because the first tibial membrane be flexible film, by In the assembling process for talking about device, it is larger that the first tibial membrane is directly installed to difficulty on shell, by isolated part by the first pronunciation Film is installed on shell so that assembling process is more easy.

4. receiver provided by the utility model, principal oscillation component further includes fixed frame and the second tibial membrane, oscillating plate One end be fixed on fixed frame, vacantly in the inner cavity of fixed frame, the second tibial membrane is mounted on fixed frame and will the other end Clearance seal covering between fixed frame and oscillating plate.Oscillating plate one end is fixing end, and the other end is free end, not only ensures master Second cavity is divided into mutual indepedent and disconnected main sounding cavity and installation cavity by vibration component, and improves vibration The degree of freedom of plate increases the Oscillation Amplitude of oscillating plate, and then improve the sound of receiver under identical electromagnetic driving force.

5. receiver provided by the utility model, driving mechanism includes at least one first permanent magnet and the first permanent magnet One-to-one second permanent magnet, soft magnetic bodies and coil.It will produce the magnetic field of an alternation when passing through alternating current in coil, Under the magnetization of the alternating magnetic field, the alternating magnetic field that coil generates concentrates in soft magnetic bodies, and soft magnetic bodies are opposite with permanent magnet so that Soft magnetic bodies will produce vibration under the action of the first permanent magnet and the second permanent magnet fixed magnetic field, to drive principal oscillation component to produce Raw vibration.

6. receiver provided by the utility model, one end the first cavity direction bending of direction and sealing of fixed frame are fixed on On first tibial membrane or isolated part；Along the setting direction of vibrating diaphragm mechanism, the bending part and shell in fixed frame is arranged in coil Between in the space that surrounds, the height in the space is more than the height of installation cavity rest part, and the larger coil of volume is installed In the space, it is possible to reduce the height of cavity is installed, so that entire receiver is thinner.

Description of the drawings

It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art Specific implementation mode or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art Under the premise of labour, other drawings may also be obtained based on these drawings.

Fig. 1 is the receiver diagrammatic cross-section provided in the utility model embodiment 1；

Fig. 2 is the principal oscillation component structure diagram of receiver in Fig. 1；

Fig. 3 is the soft magnetic bodies vertical view of receiver in Fig. 1；

Fig. 4 is the soft magnetic bodies vertical view provided in the utility model embodiment 5；

Reference sign：

1- shells；11- first shells；12- second shells；

2- hollow cavities；The first cavitys of 21-；The second cavitys of 22-；The main sounding cavitys of 221-；222- installs cavity；

The first tibial membranes of 31-；32- isolated parts；321- first through hole；33- principal oscillation components；331- oscillating plates；332- Fixed frame；3321- bending parts；The second tibial membranes of 333-；

4- driving mechanisms；The first permanent magnets of 41-；The second permanent magnets of 42-；43- soft magnetic bodies；431- mounting portions；432- extends Portion；433- interconnecting pieces；44- coils；

The first sound outlet holes of 5-；

The second sound outlet holes of 6-；

7- sound tubes.

Specific implementation mode

The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally The every other embodiment that field those of ordinary skill is obtained without making creative work, belongs to this practicality Novel protected range.

It is in the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", " perpendicular Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only The utility model and simplifying describes for ease of description, do not indicate or imply the indicated device or element must have it is specific Orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.In addition, term " the One ", " second ", " third " are used for description purposes only, and are not understood to indicate or imply relative importance.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, can also be electrical connection；Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements.For the ordinary skill in the art, it can understand above-mentioned art with concrete condition The concrete meaning of language in the present invention.

In addition, as long as technical characteristic involved in the utility model different embodiments disclosed below is each other Not constituting conflict can be combined with each other.

Embodiment 1

The present embodiment provides a kind of receivers, as shown in Figure 1, going out including shell 1, vibrating diaphragm mechanism, driving mechanism 4, first Sound hole 5 and the second sound outlet hole 6.Wherein, vibrating diaphragm mechanism includes principal oscillation component 33, the first tibial membrane 31 and isolated part 32。

Shell 1 has hollow cavity 2；First tibial membrane 31 is fixed on the internal face of shell 1, and hollow cavity 2 is divided At 21 and second cavity 22 of disconnected first cavity, it is however preferred to have elastic film；Principal oscillation component 33 is mounted on second In inner cavity, second inner chamber is divided into the first cavity 21 side by side and disconnected main sounding cavity 221 and installation cavity 222, Main sounding cavity 221 is close to 31 side of the first tibial membrane；Accordingly installation cavity 222 is far from 31 side of the first tibial membrane；Shell 1 The first sound outlet hole 5 and the second sound outlet hole 6 are offered respectively on the upper wall surface corresponding to 221 and first cavity 21 of main sounding cavity；

Driving mechanism 4 is arranged in second inner chamber, for driving principal oscillation component 33 along being vertically arranged with vibrating diaphragm mechanism Do of reciprocating vibration in direction.Driving mechanism 4 drives principal oscillation component 33 to vibrate, and principal oscillation component 33 drives main sounding cavity in turn Air in 221 is compressed or is extended, and the variation of air pressure is generated, and under the driving of the air pressure of variation, the first tibial membrane 31 generates Vibration；Principal oscillation component 33 and the vibration of the first tibial membrane 31 generate sound in 221 and first cavity 21 of main sounding cavity respectively, The two sound are brought together after the first sound outlet hole 5 and the second sound outlet hole 6, and the sound for generating a mixing is transmitted to It is extraneous.The vibration frequency of first tibial membrane 31 is consistent with the vibration frequency of principal oscillation component 33, but principal oscillation component 33 is logical It crosses air and goes driving the first tibial membrane 31 vibration, so the vibration of the first tibial membrane 31 is caused to exist compared to principal oscillation component 33 Certain lag, this makes the sound that the first tibial membrane 31 generates generate reverberation with the sound that principal oscillation component 33 generates, to change The low frequency characteristic of kind receiver, to improve the richness and sense of depth that receiver generates sound.

As shown in Figure 1, vibrating diaphragm mechanism further includes being in 31 one-to-one isolated part 32 of the first tibial membrane, isolated part The outer edge of plate, isolated part 32 is sealingly mounted on 1 internal face of shell, is offered thereon by the first cavity 21 and main sounding The first through hole 321 that cavity 221 is connected to, the first tibial membrane 31 are fixed by its edge seal in first through hole 321 On the internal face of shell 1, principal oscillation component 33 still transfers vibrations to the first hair by the air in main sounding cavity 221 On sound film 31.

First tibial membrane 31 is flexible film, in the assembling process of receiver, directly by the first tibial membrane 31 It is larger to be sealingly mounted to difficulty on the internal face of shell 1, is sealingly mounted to the first tibial membrane 31 by 32 transition of isolated part The difficulty of assembly can be reduced on shell 1, improve production efficiency.

As depicted in figs. 1 and 2, principal oscillation component 33 includes oscillating plate 331, fixed frame 332 and the second tibial membrane 333.

One end direction 21 direction bending of the first cavity and sealing of principal oscillation component 33 are fixed on isolated part 32, are formed One bending part 3321, for bending part 3321 with 332 ontology of fixed frame at an angle of 90 degrees, the end face of remaining neighboring of fixed frame is close Sealing is scheduled on the internal face of shell 1, is gone from the side, and entire fixed frame 332 is in a L-shaped.

One end of oscillating plate 331 is fixed on the one end of fixed frame 332 with bending part 3321, another as fixing end It vacantly in the inner cavity of fixed frame 332, as free end, is also opened close to the junction of itself and fixed frame 332 on oscillating plate 331 at end Equipped with rectangular through-hole；Second tibial membrane 333 is preferably flexible film, is fitted in fixed frame 332 and is located at oscillating plate 331 On a side surface in main sounding cavity 221, by the gap between fixed frame 332 and oscillating plate 331 and the square on oscillating plate 331 The sealing of shape through-hole covers.

Second tibial membrane 333 of sealing covering ensure that the second cavity 22 can be divided into independently of each other by principal oscillation component 33 And disconnected main sounding cavity 221 and installation cavity 222, ensure the voice quality of two cavitys；Meanwhile fixed frame 332 with The structure of oscillating plate 331 also improves the degree of freedom of oscillating plate 331, under identical electromagnetic driving force so that oscillating plate 331 can To reach the Oscillation Amplitude of bigger.

As shown in Figure 1, driving mechanism 4 includes the first permanent magnet 41, the second permanent magnet 42, soft magnetic bodies 43 and coil 44.

The bending part 3321 of setting direction fixed frame 332 along isolated part 32 forms a resigning with the side wall of shell 1 Space, coil 44 are fixed on the internal face of the shell 1 of corresponding installation cavity 222 and are allowed in bit space positioned at this, resigning sky Between height be more than the height of installation 222 rest part of cavity, the larger coil 44 of volume is allowed mounted on this in bit space, can To reduce the height of installation cavity 222, so that entire receiver is thinner.

Soft magnetic bodies 43 pass through the inside of coil 44, one end to be fixed on the internal face of shell 1, and the other end is fixed on oscillating plate On the surface of 331 222 sides of direction installation cavity.

First permanent magnet 41 is fixed on the internal face of the shell 1 of corresponding installation cavity 222, and the setting of the second permanent magnet 42 exists Towards on a side surface of main sounding cavity 221 in main sounding cavity 221 and mounted on isolated part 32；First permanent magnet 41 with The setting facing each other of second permanent magnet 42 and opposed facing one side have opposite polarity, and the other ends of soft magnetic bodies 43 is located at the Between one permanent magnet 41 and the second permanent magnet 42；Along the direction of vibration of principal oscillation component 33, the first permanent magnet 41 and soft magnetic bodies 43 Between be equipped with the second required gap, between the second permanent magnet 42 and the first tibial membrane 31 be equipped with the first required gap, first Gap and the second gap reserve enough spaces to the vibration of principal oscillation component 33, make the first permanent magnet 41 and second forever Magnet 42 will not interfere with the vibration of principal oscillation component 33.

Apply external audio electric signal on coil 44, that is, gives coil 44 indirect current, at this moment coil 44 will produce one The magnetic field of alternation, under the magnetization of the alternating magnetic field, the alternating magnetic field that coil generates concentrates in soft magnetic bodies and 43 liang of soft magnetic bodies The polarity at end can alternately change；First permanent magnet 41 and the common fixed magnetic field direction of the second permanent magnet 42 are constant, institutes Being in one end between the first permanent magnet 41 and the second permanent magnet 42 with soft magnetic bodies 43 can be by fixed magnetic field direction and size all Continually changing active force and generate vibration, then drive again principal oscillation component 33 vibrate.

As shown in figures 1 and 3, soft magnetic bodies 43 include mounting portion 431, extension 432, interconnecting piece 433, and mounting portion 431 is in U Shape is simultaneously fixed on the internal face of shell 1, and also there are one the extension 432 of strip, extensions 432 for molding on mounting portion 431 Extend outwardly along the setting direction for being parallel to oscillating plate 331, interconnecting piece 433 is formed at the outermost end of extension 432, connects Portion 433 is preferably to connect, prolong with oscillating plate 331 with 432 orthogonal column structure of extension, the other end of interconnecting piece 433 Extending portion 432 is fixed on by interconnecting piece 433 on oscillating plate 331.

Along the direction of vibration of oscillating plate 331, the setting of interconnecting piece 433 ensure that between extension 432 and oscillating plate 331 in advance There are required third spaces, prevent extension 432 from interfering the vibration of oscillating plate 331.

As shown in Figure 1, shell 1 includes first shell 11 and second shell 12.First shell 11 is by the first bottom surface and side Wall is constituted；Second shell 12 is made of the second bottom surface with side wall.The opening button of first shell 11, which is set, is fixed on second shell 12 In opening, the hollow cavity 2 of entire shell 1 is formed.

First shell 11 surrounds the first cavity 21 jointly with isolated part 32 and the first tibial membrane 31；Second shell 12 with Isolated part 32 and the first tibial membrane 31 surround the second cavity 22 jointly；Principal oscillation component 33, isolated part 32, first pronounce Film 31 and second shell surround main sounding cavity 221 jointly between 12 internal partial wall face；Principal oscillation component 33 and second shell Installation cavity 222 is surrounded between the rest part internal face of body 12 jointly.

The edge seal of isolated part 32 be mounted on first shell 11 be open outer end face on or second shell 12 be open On outer end face；Remaining side wall sealing of fixed frame 332 is fixed on the internal face of second shell 12；Mounting portion 431, coil 44 with And first permanent magnet 41 be all fixed on the internal face of second shell 12.

Second sound outlet hole 6 is opened on the wall surface of first shell 11；Second shell 12 corresponds to the wall of main sounding cavity 221 The first sound outlet hole 5 is offered on face.First sound outlet hole 5 and the second sound outlet hole 6 are located at the homonymy of shell 1 and close to each other, outside A sound tube 7 is also equipped on the wall surface of shell 1, the first sound outlet hole 5 and the second sound outlet hole 6 are in inside the sound tube 7, go out Sound tube 7 can more effectively bring together the sound that the first sound tube 7 is spread out of with the second sound tube 7.

The connection types such as sealing mentioned above installation, fixed, installation are the modes such as welding, dispensing.

Embodiment 2

The present embodiment provides a kind of receivers, compared with the structure of the receiver provided in embodiment 1, existing difference It is only that, the first tibial membrane 31 is two layers, three layers, four layers or more layers, and the first adjacent tibial membrane 31 is mutually parallel to be set It sets and is separated by required spacing.

Each first tibial membrane 31 is mounted on by an isolated part 32 on shell 1, and the is opened up on isolated part 32 One through-hole 321, the first tibial membrane 31 are sealingly mounted in first through hole 321, and the edge seal of isolated part 32 is mounted on first On the internal face of shell 11, on the outer end face that first shell 11 is open or on the outer end face of the opening of second shell 12.

The inner wall of innermost first tibial membrane 31, isolated part 32, principal oscillation component 33 and part second shell 12 Face surrounds main sounding cavity 221；The first adjacent tibial membrane 31 and its corresponding isolated part 32 are clipped in two isolated parts 32 Between the internal face of first shell 11 surround a time sounding cavity；Outermost first tibial membrane 31 and its corresponding isolation Component 32 surrounds one sounding cavity with part first shell 11；First shell 11 corresponds to the wall surface with each sounding cavity On offer the second sound outlet hole 6.That is, by be arranged n-layer isolated part 32 and the first tibial membrane 31 by the first cavity 21 It is the natural number more than or equal to 1 to be divided into n+1 sounding cavitys, n.

The vibration of principal oscillation component 33 passes sequentially through main sounding cavity 221 and multiple secondary sounding cavitys pass to respective chamber Corresponding first tibial membrane 31 of body, the sound that multiple vibrations of first tibial membrane 31 generate pass through the second sound outlet hole 6 and principal oscillation The sound that component 33 generates mutually converges, and reinforces the reverberation between the sound that principal oscillation component 33 and the first tibial membrane 31 generate respectively Effect more effectively improves the low frequency characteristic of receiver.

Embodiment 3

The present embodiment provides a kind of receivers, existing compared with the structure of the receiver provided in embodiment 1 or 2 It differs only in, shell 1 can be collectively formed by multiple shells such as first shell 11, second shell 12, third shells, in being located at Between shell both ends open up opening, particular number is needed to be determined by production and processing.

Embodiment 4

The present embodiment provides the structure phases for the receiver that any embodiment in a kind of receiver, with embodiment 1-3 provides Than existing to differ only in, the bending part 3321 of fixed frame 332 can be connected directly between on the first tibial membrane 31；Further Ground, bending part 3321 and 332 ontology angulation of fixed frame can be 20 degree, any angles such as 30 degree.

As variant embodiment, it can also be not provided with isolated part 32, the first tibial membrane 31 is directly sealingly mounted at On the internal face of shell 1.

Embodiment 5

The present embodiment provides the structure phases for the receiver that any embodiment in a kind of receiver, with embodiment 1-4 provides Than existing to differ only in, interconnecting piece 433 can be in 20 degree, any angles such as 30 degree with extension 432, it is only necessary to ensure It is reserved with third space between extension 432 and principal oscillation component 33.

As further deformation, as shown in figure 4, the mounting portion 431 is "-" type structure.

As interchangeable embodiment, coil 44 can be not arranged between 1 internal face of bending part 3321 and shell It allows in bit space, the other positions in installation cavity 222 can be set, it only need to be in the alternating magnetic field of the generation of coil 44 and two Under the action of the fixed magnetic field of permanent magnet, driving oscillating plate 331 does of reciprocating vibration.

As further alternative embodiments, the quantity of the second permanent magnet 42 can be two, the quantity such as three, the The quantity of one permanent magnet 41 is corresponding to it；Alternatively, the first permanent magnet 41 can also only be arranged or the second permanent magnet 42 is only arranged； Further, the quantity of the first permanent magnet 41 or the second permanent magnet 42 can be one, two, three etc..

As further interchangeable embodiment, soft magnetic bodies 43 and coil 44 can also be arranged in main sounding cavity 221 In.Or driving mechanism 4 is not provided with soft magnetic bodies 43, is only arranged coil 44 and permanent magnet, permanent magnet be fixed on oscillating plate 331 and When opposite with coil 44, oscillating plate 331 can be also driven to do of reciprocating vibration.

Embodiment 6

The present embodiment provides a kind of receivers to exist compared with the receiver that any embodiment in embodiment 1-5 provides Differ only in, driving mechanism 4 is different, and driving mechanism 4 can be made of piezoelectric vibrator and connector in the present embodiment, piezoelectricity Oscillator vacantly on the internal face of installation cavity 222, is linked together piezoelectric vibrator and principal oscillation component 33 by connector, When to piezoelectric vibrator indirect current, piezoelectric vibrator itself can do of reciprocating vibration, and then pass through connector and drive principal oscillation component 33 Vibration.

Embodiment 7

The present embodiment provides the structure phases for the receiver that any embodiment in a kind of receiver, with embodiment 1-6 provides Than existing to differ only in, at least one side wall of fixed frame 332 is fixed on towards installation 222 direction bending of cavity in shell 1 On wall surface；Further fixed frame 332 is not provided with bending part 3321, and directly sealing is fixed on 1 inner wall of shell to all side walls On face.

As further interchangeable embodiment, principal oscillation component 33 can be not provided with fixed frame 332, oscillating plate 331 One end be fixed on 1 internal face of shell and be used as fixing end, the other end is vacantly used as free end in the second cavity 22, by the Two tibial membranes 333 cover the clearance seal between 1 internal face of oscillating plate 331 and shell；It is possible to further be not provided with The edge directly sealing of two tibial membranes 333, oscillating plate 331 is fixed on the internal face of shell 1.

Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or Among the protection domain that variation is created still in the utility model.

Claims (11)

1. a kind of receiver, which is characterized in that including

Shell (1) has hollow cavity (2)；

Vibrating diaphragm mechanism, including the first tibial membrane of at least one layer (31) for being mounted on the shell (1), first tibial membrane (31) hollow cavity (2) is divided into disconnected first cavity (21) and the second cavity (22)；With mounted on described Principal oscillation component (33) in two cavitys (22), the principal oscillation component (33), which has, to be sealingly mounted on the shell (1) Oscillating plate (331)；

Second cavity (22) is divided into first cavity (21) side by side and is not connected to by the principal oscillation component (33) Main sounding cavity (221) and installation cavity (222), the main sounding cavity (221) is close to first tibial membrane (31) one Side；Correspond on the shell (1) on the wall surface of the main sounding cavity (221) and the first cavity (21) and offers first respectively Sound outlet hole (5) and the second sound outlet hole (6)；

Driving mechanism (4) is arranged in second cavity (22), for driving the oscillating plate (331) along perpendicular to described The setting direction of vibrating diaphragm mechanism is done of reciprocating vibration.

2. receiver according to claim 1, which is characterized in that first tibial membrane (31) is at least two layers, adjacent Two layers of first tibial membrane (31) is separated by required spacing；

First cavity (21) is divided into the main sounding cavity (221) simultaneously by least two layers first tibial membrane (31) Row and mutually disconnected at least two sounding cavitys；Corresponding on the wall surface of the secondary sounding cavity on the shell (1) Second sound outlet hole (6) is offered respectively.

3. receiver according to claim 1 or 2, which is characterized in that further include with first tibial membrane (31) one by one Corresponding isolated part (32)；The isolated part (32) is mounted on the shell (1) internal face, and offering thereon will be described The first through hole (321) that first cavity (21) is connected to the main sounding cavity (221), first tibial membrane (31) pass through peace In the first through hole (321) and on the shell (1).

4. receiver according to claim 3, which is characterized in that the principal oscillation component (33) further includes fixed frame (332), one end of the oscillating plate (331) is fixed on the fixed frame (332), and the other end is vacantly in the fixed frame (332) in inner cavity；And on the fixed frame (332) and at least by the fixed frame (332) and the oscillating plate (331) the second tibial membrane (333) that the clearance seal between covers；

The fixed frame (332) is sealingly mounted on the shell (1)；Or the fixed frame (332) at least one end direction First cavity (21) the direction bending and seal be fixed on first tibial membrane (31) or the isolated part (32), institute The end face seal for stating the neighboring of fixed frame (332) is mounted on the shell (1) internal face.

5. receiver according to claim 3, which is characterized in that the driving mechanism (4) includes being mounted on the shell (1) at least one first permanent magnet (41) on and positioned at principal oscillation component (33) either side；One end is fixed on described outer On shell (1), the other end is fixed on the soft magnetic bodies (43) on the oscillating plate (331), the soft magnetic bodies 43 and first permanent magnetism Body 41 is opposite；And it is set in the coil (44) in the soft magnetic bodies (43).

6. receiver according to claim 5, which is characterized in that the driving mechanism (4) further includes the second permanent magnet (42), second permanent magnet (42) and first permanent magnet (41) are located at the main sounding cavity (221) and described It installs in cavity (222)；Second permanent magnet (42) and first permanent magnet (41) are opposite one by one and opposed facing one The polarity at end is opposite；

The soft magnetic bodies (43) and the coil (44) are located in the installation cavity (222)；The principal oscillation component (33) and The soft magnetic bodies (43) are between second permanent magnet (42) and first permanent magnet (41)；Along the oscillating plate (331) direction of vibration reserves required first gap, institute between the principal oscillation component (33) and second permanent magnet (42) State the second gap needed for being reserved between soft magnetic bodies (43) and first permanent magnet (41).

7. receiver according to claim 5, which is characterized in that when the one side wall direction first of the fixed frame (332) Cavity (21) direction bending and when being fixed on first tibial membrane (31) or the isolated part (32)；

Along the setting direction of the vibrating diaphragm mechanism, the coil (44) is located at the bending side wall and the institute of the fixed frame (332) It states in the space surrounded between shell (1).

8. receiver according to claim 5, which is characterized in that the soft magnetic bodies (43) include being mounted on the shell (1) mounting portion (431) on；It is molded on the mounting portion (431) and extends along the setting direction for being parallel to oscillating plate (331) Extension (432)；And be fixed on the interconnecting piece (433) on the extension (432), the interconnecting piece (433) it is another End is fixed on the oscillating plate (331)；Direction of vibration along the oscillating plate (331), the extension (432) are shaken with described Third space needed for being reserved between movable plate (331).

9. receiver according to claim 8, which is characterized in that the interconnecting piece (433) is perpendicular to the extension (432)。

10. receiver according to claim 1 or 2, which is characterized in that the driving mechanism (4) is vacantly mounted on institute State the piezoelectric vibrator in installation cavity (222)；The piezoelectric vibrator is connected to the oscillating plate (331) by connector.

11. receiver according to claim 1 or 2, which is characterized in that the shell (1) includes by the first bottom surface and side The first shell (11) that wall surrounds, and the second shell (12) that is surrounded by the second bottom surface and side wall, the first shell (11) Opening be located in the opening of the second shell (12), to surround the hollow cavity (2).