CN207505135U

CN207505135U - A kind of receiver

Info

Publication number: CN207505135U
Application number: CN201721580687.6U
Authority: CN
Inventors: 陈晓明; 吴哲
Original assignee: Suzhou Yi Acoustic Technology Co Ltd
Current assignee: Suzhou Yiyi Technology Co.,Ltd.
Priority date: 2017-11-23
Filing date: 2017-11-23
Publication date: 2018-06-15
Anticipated expiration: 2027-11-23

Abstract

The utility model discloses a kind of receiver, and receiver includes shell, vibrating diaphragm mechanism, driving structure and head rod.The fixed frame of vibrating diaphragm mechanism is directly anchored on shell, and driving structure is arranged in second inner chamber.One end of head rod is fixed on the internal face of shell, and the other end is fixed on amplitude plate, and driving structure is connect with head rod.After the pressure that is powered to driving structure, driving structure is vibrated to drive head rod that oscillating plate is driven to do perpendicular to the of reciprocating vibration of vibrating diaphragm mechanism setting direction.Head rod forms lever, the amplitude of oscillating plate is improved using lever principle, so as to improve the sound of receiver.

Description

A kind of receiver

Technical field

The utility model is related to the technical fields of receiver, and in particular to a kind of receiver.

Background technology

Receiver is a kind of electro-acoustic element that audio electrical signal is converted into voice signal under the conditions of voiceless sound leakage, extensively It is general to be applied in the communication terminal devices such as mobile phone, fixed-line telephone, earphone, realize the output of audio.

With the continuous development of mobile equipment, the structure of receiver is continuously updated, such as Chinese patent CN203563195U discloses a kind of piezoelectric type receiver, and including enclosed housing and be set on housing several send sound Hole is provided with vibrating membrane and the oscillating plate being attached in vibrating membrane bottom surface in housing and is attached to oscillating plate bottom table Piezoelectric vibrator is additionally provided on oscillating plate on face, by giving piezoelectric vibrator indirect current pressure, piezoelectric vibrator vibration is shaken to drive The vibration that movable plate moves reciprocatingly in the vertical direction drives the vibration of oscillating plate.

The receiver of this structure, the Oscillation Amplitude of piezoelectric vibrator is consistent with the Oscillation Amplitude of oscillating plate, the vibration of oscillating plate Amplitude only relies on the Oscillation Amplitude of piezoelectric vibrator to increase or reduce；But the Oscillation Amplitude of piezoelectric vibrator of the prior art has Limit, it is difficult to the amplitude amplitude of oscillating plate in further increase receiver so that the sound of receiver is inadequate.

Utility model content

Therefore, it is driven the technical problem to be solved by the utility model is to receiver in the prior art using piezoelectric vibrator When, the defects of sound of receiver is low.

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

Shell has hollow lumen；

Vibrating diaphragm mechanism is arranged in the hollow lumen, and the hollow lumen is divided into the first cavity and the second cavity； It has the oscillating plate of installation on the housing；

At least one head rod, in second cavity；It is installed as fixing end one end of the connecting rod On the housing, the other end is fixedly connected as the first free end with the oscillating plate；

Driving structure is arranged in second cavity, is connect with the head rod；The driving structure with it is described The fixed point of head rod is located between fixing end and the first free end of the head rod；To the driving structure After energization, the first free end drive oscillating plate of the driving structure driving head rod is done to shake perpendicular to described Film mechanism setting direction it is of reciprocating vibration.

Preferably, the head rod is at least two, along in the setting direction of the vibrating diaphragm mechanism, is owned The head rod reserves the first gap in setting is stacked between the two neighboring head rod；

The first free end positioned at the head rod of top layer is fixed on the oscillating plate, positioned at described in bottom Head rod is connect with the driving structure；

In the two neighboring head rod, the first free end of the underlying head rod is fixed in place In on the head rod of top, first free end be in the head rod of top two ends it Between.

Preferably, in the two neighboring head rod, the fixing end for the head rod being located above and position The same side of the shell is each attached in the fixing end of the head rod of lower section or is separately fixed at the shell Both sides.

Preferably, the second connecting rod is further included, one end of which is fixed on the head rod, the other end is fixed on described In driving structure.

Preferably, the part for being located at second connecting rod and being secured between end of the head rod, Huo Zhexiang In adjacent two head rods, the first free end positioned at the lower section head rod of the top head rod Part between the fixing end of the top head rod, including the first segment and second segment set gradually, the second segment Weight be more than the weight of first segment, the end installation far from the first segment is on the housing on the second segment.

Preferably, the head rod is L-shaped, and the horizontal part of the L-shaped is fixed on the housing, the vertical portion Be fixed on the oscillating plate or the adjacent thereto and head rod that is positioned above on.

Preferably, the driving structure is the piezoelectric vibrator being vacantly arranged in second cavity；Along perpendicular to described In the setting direction of vibrating diaphragm mechanism, the gap between the piezoelectric vibrator head rod adjacent thereto is more than the pressure The peak swing of electric tachometer indicator.

Preferably, the piezoelectric vibrator is rounded, and edge is fixed on the housing, and middle part is connected to the first connection Bar；Or

The piezoelectric vibrator is in bar shaped, and one end of the bar shaped is fixed on the housing, and the other end is hanging as second Vacantly in second cavity, second free end is connected to the head rod at end.

Preferably, the vibrating diaphragm mechanism also has the fixed frame of installation on the housing；One end of the oscillating plate is consolidated It is scheduled in the fixed frame, the other end is vacantly in the inner cavity of the fixed frame；And it is fixed on the fixed frame and at least The tibial membrane that clearance seal between the fixed frame and the oscillating plate is covered.

Preferably, the shell includes the first shell surrounded by the first bottom surface and side wall and by the second bottom surface and side wall The second shell surrounded, the opening of the first shell be located in the opening of the second shell, described hollow interior to surround Chamber.

The utility model also provides a kind of assembly technology of receiver, includes the following steps：

S10：The edge of circular piezoelectric vibrator is mounted on the internal face of second shell or by bar shaped piezoelectric vibrator One end is fixed on the internal face of second shell, and the other end is as the second free end vacantly in the inner cavity of second shell；

S20：One end of head rod is fixed on the internal face of second shell, the other end is hanged as the first free end Sky is in the inner cavity of the second shell；By the second connecting rod by the middle part or bar shaped of head rod and circular piezoelectric vibrator The second free end connection of piezoelectric vibrator so that the middle part or second free end are located at two of the head rod Between end；

S30：Vibrating diaphragm mechanism is mounted on to the internal face of second shell or the internal face or second shell of first shell Opening on, and the first free end is fixed on the oscillating plate of the vibrating diaphragm mechanism；

S40：By the opening of first shell be located in the opening of second shell or vibrating diaphragm mechanism backwards to described first On one side surface of housing.

Technical solutions of the utility model have the following advantages that：

1. receiver provided by the utility model, it is provided with head rod between driving structure and oscillating plate, first One end of connecting rod is fixed on the internal face of second shell, and the other end is fixed on oscillating plate.Driving structure is connect with first The fixed point of bar is located between two ends of head rod so that head rod is formed with its fixed point on the shell As the lever of fulcrum, the first torque arm length L1 of fixed point to the fulcrum of driving structure is less than oscillating plate and the first free end connects Place is met to the second torque arm length L2 of fulcrum, the resistance suffered by resistance and the first free end suffered by driving structure is respectively F1 and F2, by lever principle it is found that F1*L1=F2*L2, due to L2 ＞ L1, then F2 ＜ F1 so that the first of head rod is outstanding Resistance smaller suffered by dead end, the first free end are easier to vibrate, so as under identical driving force, increase head rod The first free end drive vibration panel vibration amplitude, so as to improve the sound of receiver.

2. receiver provided by the utility model, head rod at least two, all head rods are in stack to set It puts to form multi-grade lever, by the amplification step by step of multi-grade lever, further to increase the Oscillation Amplitude of oscillating plate, into Improve to one step the sound of receiver.

3. receiver provided by the utility model, it is secured to hold positioned at second connecting rod on the head rod Between part include sequentially connected first segment and second segment, the weight of the second segment is more than the weight of the first segment, The end of the second segment is the fixing end.It, can be by second segment since the weight of second segment is more than the weight of first segment Fulcrum at fixing end is transferred to the junction of second segment and first segment, the length of second arm of force of the first free end to fulcrum and The length of first arm of force of the fixed point and fulcrum of driving structure and head rod is reduced, F1* (L1-L0)=F2 ' * (L2- L0), L0 is length F2 '=((L1-L0)/(L2-L0)) F1, F2 ' ＜ F2 of second segment so that the first free end of the first connection Suffered resistance smaller further increases the amplitude that the first free end drives oscillating plate.

4. the utility model provides the assembly technology of receiver, piezoelectric vibrator is mounted on the internal face of second shell, with Reserve vibration gap between the bottom surface of second shell, head rod is arranged on above piezoelectric vibrator in stacking, and undermost the One connecting rod is connect by the second connecting rod with piezoelectric vibrator, is equipped with piezoelectric vibrator, head rod and the second connecting rod Second shell is as the first module.

Oscillating plate one end is mounted on fixed frame, the other end vacantly in the inner cavity of fixed frame, fixed frame and oscillating plate it Between form gap；Tibial membrane is mounted on fixed frame, and entire oscillating plate is hanged and is covered as the second module, first shell conduct Third module, three modules install in advance, finally again by three module general assemblies, to realize modular assembly technology, so as to Improve the efficiency of assembling of receiver.

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 of the prior art Specific embodiment 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 the utility model some embodiments, for those of ordinary skill in the art, do not paying creativeness Under the premise of labour, other attached drawings are can also be obtained according to these attached drawings.

Fig. 1 is the longitudinal profile schematic diagram of the receiver provided in the utility model embodiment 1；

Fig. 2 is the structure diagram of the piezoelectric vibrator provided in the utility model embodiment 1

Fig. 3 is the vertical view of the oscillating plate provided in the utility model embodiment 1；

Fig. 4 is the cross-sectional view of the receiver provided in the utility model embodiment 3；

Fig. 5 is the cross-sectional view of the receiver provided in the utility model embodiment 1；

Fig. 6 is the structure diagram of fixed frame and oscillating plate in vibrating diaphragm mechanism in the utility model embodiment 1；

Reference sign：

1- shells；11- first shells；12- second shells；The first cavitys of 13-；The second cavitys of 14-；15- sound outlet holes；

21- fixed frames；22- oscillating plates；23- tibial membranes；

The second connecting rods of 3-；4- piezoelectric vibrators；The first piezoelectric ceramics of 41-；42- separation layers；The second piezoelectric ceramics of 43-；

5- head rods；511- first segments；512- second segments；

6- sound guide tubes；First arm of forces of L1-；Second arm of forces of L2-；The L3- third arm of forces；The 4th arm of forces of L4-；The first fulcrums of Z1-； The second fulcrums of Z2-.

Specific embodiment

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 part of the embodiment, instead of all the embodiments.Based on the embodiment in the utility model, sheet Field those of ordinary skill all other embodiments obtained without making creative work, belong to this practicality Novel protected range.

In the description of the present invention, it should be noted that term " " center ", " on ", " under ", it is "left", "right", " perpendicular Directly ", the orientation of the instructions such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only The utility model must have specific with the device or element for simplifying description rather than instruction or hint meaning for ease of description Orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.In addition, term " the One ", " second ", " third " are only used for description purpose, and it is not intended that instruction or hint 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 " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integrally Connection；Can be mechanical connection or electrical connection；It can be directly connected, can also be indirectly connected by intermediary, It can be the connection inside two elements.For the ordinary skill in the art, can above-mentioned art be understood with concrete condition Concrete meaning of the language in the utility model.

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

Embodiment 1

The present embodiment provides a kind of receiver, as shown in Figure 1, including shell 1, vibrating diaphragm mechanism, two head rods 5 with And driving structure.

As shown in Figure 1, shell 1 is included with the first shell 11 being made of the first bottom surface and side wall and by the second bottom The second shell 12 that face is formed with side wall；Second shell 12 removably surrounds hollow lumen with the fastening of first shell 11.Vibrating diaphragm Mechanism is arranged between the opening of first shell 11 and second shell 12, and the inner cavity of shell 1 is divided into close to the first bottom surface The first cavity 13 and close to the second bottom surface the second cavity 14.That is, the inner cavity of first shell 11 is as the first cavity 13, The inner cavity of two housings 12 is as the second cavity 14.First shell 11 and second shell 12 are preferably made of Alperm.

As shown in Figure 2 and Figure 6, vibrating diaphragm mechanism includes fixed frame 21, oscillating plate 22 and tibial membrane 23, and fixed frame 21 is fixed Between the opening of first shell 11 and second shell 12, such as spot welding fixed form or with glue sticking mode；Tibial membrane 23 It is fixed on 13 1 side surface of the first cavity of direction on fixed frame 21；22 one end of oscillating plate is mounted on fixed frame 21, another In the inner cavity of fixed frame, gap vacantly is formed between fixed frame 21 and oscillating plate for end；Tibial membrane is mounted on fixed frame, will be whole A oscillating plate 22 is outstanding to be covered so that the first cavity 13 is separated with the sealing of the second cavity 14, and two cavitys do not connect.

For example, tibial membrane 23 is by being adhesive on fixed frame 21 and oscillating plate 22 or tibial membrane 23 is existed by glue sticking 21 on fixed frame, the preset clearance formed between the free end of oscillating plate 22 and fixed frame 21 is sealed, the material of tibial membrane 23 Preferably polymer compound film, such as PVC composite membranes.

After being powered to driving structure, driving structure drives the first free end of the head rod 5 (hereinafter to carry And) oscillating plate is driven to do perpendicular to the of reciprocating vibration of vibrating diaphragm mechanism setting direction.As shown in Figure 1, driving structure is Rounded piezoelectric vibrator is vacantly arranged in the second cavity 14.For example, being provided with supporting rack in second shell, piezoelectricity shakes Son is arranged on supporting rack, and is arranged in parallel with fixed frame；Or supporting rack is not provided with, directly by the circumferential edge of piezoelectric vibrator In the interior sidewall surface of second shell, two kinds of mounting means cause there is vibration gap between 4 and second bottom surface of piezoelectric vibrator.

As shown in Fig. 2, piezoelectric vibrator 4 include set gradually from top to bottom the first piezoelectric ceramics 41, separation layer 42 and Second piezoelectric ceramics 43.Separation layer 42 is conductor, for example, by using iron plate or copper sheet.First piezoelectric ceramics 41 and the second piezoelectric ceramics 43 itself polarized, two faces are respectively anode and cathode.43 homopolarity of first piezoelectric ceramics 41 and the second piezoelectric ceramics during setting Relatively, such as 41 bottom surface of the first piezoelectric ceramics is cathode, and 43 top surface of the second piezoelectric ceramics is cathode.First piezoelectricity is made pottery The top surface connection positive electrode of porcelain 41, the bottom surface connection negative electrode of the second piezoelectric ceramics 43.First piezoelectric ceramics 41, every 42 and second piezoelectric ceramics 43 of absciss layer forms the circuit of a series connection.Positive electrode and negative electrode connect AC power input respectively End, when positive electricity extremely positive voltage, negative electricity extremely negative voltage when, by inverse piezoelectric effect, the first piezoelectric ceramics 41 extends, the second pressure Electroceramics 43 is shunk, and piezoelectric vibrator 4 generates convex bending deformation；When positive electricity extremely negative voltage, negative electricity extremely positive voltage when, pass through Inverse piezoelectric effect, the first piezoelectric ceramics 41 are shunk, and the second piezoelectric ceramics 43 extends, and piezoelectric vibrator 4 generates concave curve deformation, by In the regular exchange of alternating current positive and negative anodes so that piezoelectric vibrator 4 generate it is regular pump, so as to drive vibration Plate is realized of reciprocating vibration.

As shown in Figure 1, two head rods 5 are arranged in parallel between oscillating plate and piezoelectric vibrator, underlying Vibration gap is reserved between one connecting rod 5 and piezoelectric vibrator.It is installed as fixing end the one end of head rod 5 being located above On the second housing, the other end is fixed on as the first free end on oscillating plate；The fixing end of underlying head rod 5 Fixed the other end is fixed on as the first free end on the head rod 5 being located above on the second housing, this is first hanging End is located above between two ends of head rod 5；And the fixing end of two head rods 5 is located at second shell respectively The both sides of body or the homonymy that second shell can also be located at.

The middle part of circular piezoelectric vibrator is mounted on by the second connecting rod 3 on the head rod 5 of lower section, and second connects Fixed point of the extension bar 3 on head rod 5 is located between two ends of the head rod 5.As shown in figure 5, so as to make Underlying head rod 5 forms primary lever using its fixing end as the first fulcrum Z1, the second connecting rod 3 and first First arm of force between fulcrum Z1 is L1, and second arm of force of the first free end to the first fulcrum Z1 of level-one bar thick stick is L2, second The resistance that first free end of connecting rod 3 and primary lever is subject to respectively is F1 and F2, is obtained by lever principle, formula one：F1* L1=F2*L2.

Similarly, the head rod 5 being located above forms the second lever using its fixing end as the second fulcrum Z2, two level The third arm of force of first free end of lever to the second fulcrum Z2 are L3, and the first free end of primary lever is to the second fulcrum Z2's 4th arm of force be L4, the resistance suffered by the first free end of second lever and the first free end of primary lever be respectively F3 and F2 obtains by lever principle, formula two：F3*L3=F2*L4 is combined formula one with formula two, obtain F3=[(L1*L3)/

(L2*L4)] F1, due to L2 ＞ L1, and meanwhile L4 ＞ L3 so that F3 ＜ F1, that is, when the resistance suffered by piezoelectric vibrator Power is F1, the resistance F3 ＜ F1 suffered by oscillating plate, and oscillating plate is increased by resistance smaller, easily vibration, Oscillation Amplitude, So as to fulfill by setting two-stage lever, to increase the function of the sound of receiver.

As shown in Figure 1 and Figure 5, in order to further improve the Oscillation Amplitude of oscillating plate, underlying first is connected The structure of bar 5 is improved.For example, the part for being located at the second connecting rod 3 and the first fulcrum on head rod 5 includes connecting successively The first segment 511 and second segment 512 connect, the weight of the weight ratio first segment 511 of second segment 512 is big, such as second segment is thick bar, First segment is thin bar.Due to two sections vary in weight, the first fulcrum Z1 is transferred on the other end of second segment 512 so that the One arm of force L1 and the second arm of force L2 are reduced, if the length of second segment is L0, at this point, the formula one of primary lever becomes：F1* (L1-L0)=F2* (L2-L0), F3=[(L1-L0) * L3/ ((L2-L0) * L4)], further reduce F3 so that oscillating plate Amplitude further increases.

For head rod 5, head rod 5 is L-shaped, and the end of the horizontal part of L-shaped is as fixing end, vertically The end in portion is as the first free end so that has required vibration gap between the head rod 5 of adjacent two layers.Alternatively, Head rod 5 is in horizon bar, is fixedly connected with the head rod 5 of adjacent two layers by vertical connecting rod so that adjacent The first gap is formed between two layers of head rod 5.

As shown in Figure 1, above-mentioned receiver, further includes the sound outlet hole 15 being opened on the side wall of first shell 11 and fixes The sound guide tube 6 being contained on the outer surface of first shell 11 and by sound outlet hole 15.Driving hair when oscillating plate 22 vibrates Sound film 23 agitates the air movement in the first cavity 13 so that sends out required sound in the first cavity 13, sound passes through again Sound outlet hole 15 enters in sound guide tube 6 and then blazes abroad, and can assemble sound, be more clear.

In receiver assembly technology, modular assembly technology can be formed so that the assembling process of receiver is simple Change.For being not provided with supporting rack in receiver.

S10：The circumferential edge of circular piezoelectric vibrator is mounted on the internal face of second shell, the bottom surface with second shell Between reserve vibration gap；

S20：The fixing end of underlying head rod 5 is fixed on the second housing, the other end is outstanding as first Dead end vacantly reserves vibration gap, circular piezoelectric in the second cavity, between underlying head rod 5 and piezoelectric vibrator The middle part of oscillator is mounted on by the second connecting rod 3 on the head rod 5 of lower section, and the second connecting rod 3 is in the first connection Fixed point on bar 5 is located between two ends of the head rod 5；

It is installed the one end of head rod 5 being located above as fixing end on the second housing again, other end conduct First free end vacantly in the second cavity, the first free end of underlying head rod 5 is fixed on and is located above Head rod 5 two ends between.The first gap is reserved between two head rods 5, and fixing end is located at respectively The both sides of second shell or the homonymy that second shell can also be located at.

S30：Fixed frame is mounted in the opening of second shell so that tibial membrane is incited somebody to action backwards to the inner cavity of second shell First free end of the head rod 5 being located above is fixed on oscillating plate 22；

S40：The opening of first shell be located on a side surface of second shell backwards for vibrating diaphragm mechanism.

The assembly technology has piezoelectric vibrator 4 by what is obtained in S10 and S20 steps, and two head rods 5, second connects The second shell of extension bar 3 is as the first module, and vibrating diaphragm mechanism is as the second module, and first shell is as third module, three moulds Block installs in advance, finally again by three module general assemblies, to realize modular assembly technology, so as to improve the assembling of receiver Efficiency.

As the deformation of assembly technology, in S30 steps, by fixed frame 21 be fixed on second shell 12 internal face or On the internal face of first shell 11 so that tibial membrane 23 is backwards to the inner cavity of second shell, and the head rod 5 that will be located above The first free end be fixed on oscillating plate 22；In S40 steps, the opening of first shell 11 is located in into second shell 12 In opening.

The assembly technology will be obtained in S10, S20 and S30 step with piezoelectric vibrator 4, two head rods 5, the The second shell of two connecting rods 3 and vibrating diaphragm mechanism is as the first module, and first shell is as the second module；Or will by S10 and What is obtained in S20 steps has piezoelectric vibrator 4, and the second shell of two 5 and second connecting rods 3 of head rod is as the first mould Block has the first shell of vibrating diaphragm mechanism as the second module, and two modules install in advance, finally again that two modules are total Dress, to realize modular assembly technology, module is less, further improves the efficiency of assembling of receiver.

Embodiment 2

The present embodiment provides the receiver provided in a kind of receiver, with embodiment 1, difference lies in：Only setting one Head rod, relative to the receiver in embodiment 1, the resistance suffered by oscillating plate is F2=(L1/L2) * F1, due to L1 ＜ L2 so that F2 ＜ F1 still are able to play the Oscillation Amplitude for improving oscillating plate.

When setting a head rod, the assembly technology of receiver is：

S20：The fixing end of head rod is fixed on the second housing, the other end is as the first free end vacantly the Vibration gap is reserved in two cavitys, between head rod and piezoelectric vibrator 4, the middle part of circular piezoelectric vibrator 4 connects by second Extension bar is mounted on head rod, and fixed point of second connecting rod on head rod is located at two of the head rod Between end；

S30：Fixed frame is mounted in the opening of second shell so that tibial membrane is incited somebody to action backwards to the inner cavity of second shell First free end of head rod 5 is fixed on oscillating plate 22；

As interchangeable embodiment, head rod can also be three, four, five etc., be correspondingly formed Three-level lever, level Four lever, Pyatyi lever etc..Along in the setting direction of vibrating diaphragm mechanism, all head rods are in Setting is stacked, the first gap is reserved between two neighboring head rod；First positioned at the head rod of top layer is outstanding Dead end is fixed on the oscillating plate, and the head rod positioned at bottom is connect with the driving structure；Two neighboring institute It states in head rod, the first free end of the underlying head rod is fixed on described first be located above and connects On extension bar, which is between two ends of the head rod of top.This embodiment, passes through Multilayer head rod is set, multi-grade lever is formed and further increases oscillating plate Oscillation Amplitude.Head rod setting Quantity is not limited thereto depending on actual demand.

Correspond to, during multiple head rods, the assembly technology of receiver is：

S10：The circumferential edge of circular piezoelectric vibrator 4 is mounted on the internal face of second shell, the bottom with second shell Vibration gap is reserved between face；

S20：It will be fixed on the second housing positioned at the fixing end of the head rod of the bottom, the other end is outstanding as first Dead end vacantly in the second cavity, reserves vibration gap, circle pressure between the head rod of the bottom and piezoelectric vibrator 4 The middle part of electric tachometer indicator 4 is mounted on by the second connecting rod 3 on the head rod of the bottom, and the second connecting rod connects first Fixed point on extension bar is located between two ends of the head rod, then will be positioned at one end of the head rod of the second layer As fixing end installation on the second housing, the other end vacantly in the second cavity, will be located at the bottom as the first free end The free end of head rod be fixed between two ends of the head rod positioned at the second layer.

The step is repeated, the head rod of third layer is set on the head rod of the second layer, until that will be located at most The head rod of top layer installs；

S30：Fixed frame is mounted in the opening of second shell so that tibial membrane is incited somebody to action backwards to the inner cavity of second shell The first free end positioned at the head rod 5 of top is fixed on oscillating plate 22；

Embodiment 3

The present embodiment provides a kind of receiver, compared with the receiver provided in embodiment 1 or embodiment 2, difference lies in：

The structure of piezoelectric vibrator 4 is different, piezoelectric vibrator 4 include the first piezoelectric ceramics 41 set gradually from top to bottom, every 42 and second piezoelectric ceramics 43 of absciss layer.Separation layer 42 is insulation film, such as insulation film is non-metal elastic vibrating diaphragm, preferably For elastic polyurethane film.First piezoelectric ceramics 41 is opposite with 43 homopolarity of the second piezoelectric ceramics, such as under the first piezoelectric ceramics 41 Face is cathode, and the second piezoelectric ceramics 43 is cathode above.The upper surface connection positive electrode of first piezoelectric ceramics 41, lower surface connection Negative electrode, the upper surface connection negative electrode of the second piezoelectric ceramics 43, lower surface connection positive electrode.The negative electricity of first piezoelectric ceramics 41 Pole and the negative electrode of the second piezoelectric ceramics 43 are connected to cathode, the positive electrode of the first piezoelectric ceramics 41 and the second piezoelectric ceramics 43 Positive electrode be connected to anode, two electrodes connect ac power input end respectively.As interchangeable embodiment, piezoelectricity The number of plies for the piezoelectric ceramics that oscillator 4 may include can also be three layers, four layers, five layers etc., only between every two layers of the piezoelectric ceramics of need It is provided with insulation film.

As interchangeable embodiment, the shape of piezoelectric vibrator 4 can also be strip, as shown in figure 4, piezoelectric vibrator 4 one end is fixed on the internal face of second shell, and the other end vacantly in the second cavity, fix by the bottom of the second connecting rod 3 On the other end of piezoelectric vibrator 4.It drives oscillating plate to do principle of reciprocating vibration as the piezoelectric vibrator 4 in embodiment 1, Difference, the vibration section of the piezoelectric vibrator 4 of strip is the free end of piezoelectric vibrator 4, and the vibration section of circular piezoelectric vibrator 4 For its middle part, the piezoelectric vibrator 4 of strip is relative to the advantages of circular piezoelectric vibrator 4, and the piezoelectric vibrator 4 of strip hangs Dead end degree of freedom is big, it is easier to vibrate, and then the resistance F1 suffered by the second connecting rod 3 can be reduced, by multistage bar thick stick it Afterwards so that the resistance smaller suffered by oscillating plate further increases the Oscillation Amplitude of oscillating plate.

Corresponding to the piezoelectric vibrator 4 of strip, the assembly technology of receiver is different compared with the assembly technology of embodiment 1 Part is：In S10 steps, 4 one end of piezoelectric vibrator of strip is fixed in the side wall surface of second shell, the other end is made It is free end vacantly in the second cavity, vibration gap is reserved between the bottom surface of second shell；In S20 steps, second connects The bottom of extension bar is fixed on the free end of piezoelectric vibrator 4.

Embodiment 4

The present embodiment provides a kind of receiver, the receiver provided with embodiment 1 to any of embodiment 3 embodiment It compares, the difference lies in：

The structure of vibrating diaphragm mechanism is different, and vibrating diaphragm mechanism only includes oscillating plate, is not provided with tibial membrane and fixed frame, but at this time Oscillating plate has elasticity, and the neighboring of oscillating plate is sealingly mounted on the internal face of shell, directly by oscillating plate by the One housing and second shell fasten back wall into hollow lumen be divided into mutual disconnected first cavity and the second cavity.Example Such as, it is fixed by glue sticking or spot welding mode is fixed.

Embodiment 5

The present embodiment provides a kind of receiver, the receiver provided with any of embodiment 1 to embodiment 4 embodiment It compares, the difference lies in：

The second connecting rod can also be not provided with, such as pass through spot welding side between piezoelectric vibrator head rod adjacent thereto Formula so that the end of the vibration section of piezoelectric vibrator is connect with the head rod, and piezoelectric vibrator is other than the end of vibration section Part and head rod between form gap, it is ensured that Oscillation Amplitude is increased by lever principle.That is, piezoelectric vibrator exists Fixed point on head rod is located between two ends of head rod.

As further deformation, driving structure can also be other structures, for example, piezoelectric vibrator is replaced with permanent magnetism Body and the coil in the second cavity, coil generate the electromagnetic field of alternation after being powered, which generates permanent magnet Attraction or repulsive force head rod to be driven to drive vibration panel vibration, can also form bar thick stick amplification, only in the second chamber Internal installing component is relatively more, and the assembling of receiver is slightly complicated.

Embodiment 6

A kind of receiver provided in this embodiment provides called with embodiment 1 to any of embodiment 5 embodiment Device, difference lies in：

Sound outlet hole 15 can also be opened in the other positions of first shell 11, such as the first bottom surface of first shell 11, The sound guide tube 6 for being fixed on the outer surface of first shell 11 and being contained within sound outlet hole 15.Accordingly sound guide tube 6 is also set It puts in the outside wall surface of the first bottom surface, sound outlet hole 15 is contained within.

Obviously, the above embodiments are merely examples for clarifying the description, and is not intended to 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 the obvious variation thus extended out or Among changing still in the scope of protection of the utility model.

Claims

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

Shell (1) has hollow lumen；

Vibrating diaphragm mechanism is arranged in the hollow lumen, and the hollow lumen is divided into the first cavity (13) and the second cavity (14)；It has the oscillating plate being mounted on the shell (1)；

At least one head rod (5), in second cavity (14)；Pacify as fixing end one end of the connecting rod On the shell (1), the other end is fixedly connected as the first free end with the oscillating plate (22)；

Driving structure is arranged in second cavity (14), is connect with the head rod；The driving structure with it is described The fixed point of head rod (5) is located between fixing end and the first free end of the head rod (5)；To the drive After dynamic structure is powered, the driving structure drives the first free end of the head rod (5) to drive the oscillating plate (22) It does perpendicular to the of reciprocating vibration of vibrating diaphragm mechanism setting direction.

2. receiver according to claim 1, which is characterized in that the head rod (5) is at least two, along vertical In in the setting direction of the vibrating diaphragm mechanism, in setting is stacked, two neighboring described first connects all head rods (5) The first gap is reserved between extension bar (5)；

The first free end positioned at the head rod (5) of top layer is fixed on the oscillating plate (22), positioned at bottom The head rod (5) connect with the driving structure；

In the two neighboring head rod (5), the first free end of the underlying head rod (5) is fixed on On the head rod (5) being located above, which is in the two of the head rod (5) of top Between a end.

3. receiver according to claim 2, which is characterized in that in the two neighboring head rod (5), positioned at upper The fixing end of the head rod (5) and the fixing end of the underlying head rod (5) of side are each attached to institute It states the same side of shell (1) or is separately fixed at the both sides of the shell (1).

4. receiver according to any one of claim 1-3, which is characterized in that further include the second connecting rod (3), one End is fixed on the head rod (5), and the other end is fixed in the driving structure.

5. receiver according to claim 4, which is characterized in that

The head rod (5) is located at part or the two neighboring institute that second connecting rod is secured between end State in head rod (5), the top head rod (5) positioned at the first hanging of the lower section head rod (5) Part between end and the fixing end of the top head rod (5), including the first segment (511) set gradually and second segment (512), the weight of the second segment (512) is more than the weight of first segment (511), far from described the on the second segment (512) The end of one section (511) is mounted on the shell (1).

6. receiver according to claim 5, which is characterized in that the head rod (5) is L-shaped, the water of the L-shaped Flat portion is fixed on the shell (1), and vertical portion is fixed on the oscillating plate (22) or adjacent thereto and be positioned above The head rod (5) on.

7. receiver according to any one of claim 1-3, which is characterized in that the driving structure is vacantly is arranged on Piezoelectric vibrator (4) in second cavity (14)；Edge is in the setting direction of the vibrating diaphragm mechanism, the piezoelectric vibrator (4) gap between the head rod (5) adjacent thereto is more than the peak swing of the piezoelectric vibrator (4).

8. receiver according to claim 7, which is characterized in that the piezoelectric vibrator (4) is rounded, and edge is fixed on On the shell (1), middle part is connected to head rod (5)；Or

The piezoelectric vibrator (4) is fixed in bar shaped, one end of the bar shaped on the shell (1), and the other end is outstanding as second For dead end vacantly in second cavity (14), second free end is connected to the head rod (5).

9. receiver according to any one of claim 1-3, which is characterized in that the vibrating diaphragm mechanism, which also has, to be mounted on Fixed frame (21) on the shell (1)；One end of the oscillating plate (22) is fixed in the fixed frame (21), and the other end hangs Sky is in the inner cavity of the fixed frame (21)；And it is fixed on the fixed frame and at least by the fixed frame and the vibration The tibial membrane (23) that clearance seal between plate covers.

10. receiver according to any one of claim 1-3, which is characterized in that the shell (1) is including by the first bottom The first shell (11) that face is surrounded with side wall and the second shell (12) 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 lumen.