CN209517509U - Receiver and mobile terminal - Google Patents
Receiver and mobile terminal Download PDFInfo
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- CN209517509U CN209517509U CN201920454966.0U CN201920454966U CN209517509U CN 209517509 U CN209517509 U CN 209517509U CN 201920454966 U CN201920454966 U CN 201920454966U CN 209517509 U CN209517509 U CN 209517509U
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- actuator
- vibrating diaphragm
- support
- fixed cover
- receiver
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Abstract
The utility model provides a kind of receiver and mobile terminal, including fixed cover, and the top of the fixed cover has opening；Vibrating diaphragm, the vibrating diaphragm is mounted in the fixed cover, and the vibrating diaphragm closes the opening；Actuator, the actuator is mounted in the fixed cover, the actuator is located between the bottom surface and the vibrating diaphragm of the fixed cover, the bottom surface interval of the actuator and the installation cavity is arranged, the actuator and the vibrating diaphragm interval are arranged, the actuator is piezoelectric material, and the actuator is electrically connected with the fixed cover；Connector, the connector are located between the actuator and the top dome, and the connector is connected with the actuator and the vibrating diaphragm respectively.The utility model drives diaphragm vibration sounding that receiver is made to have preferable high frequency performance and preferable sensitivity by patch of piezoelectric material.
Description
Technical field
The utility model relates to technical field of electronic equipment, more particularly to a kind of receiver and mobile terminal.
Background technique
In general, user carries and provides the device of the functions such as communication function, multimedia for user when mobile terminal, when in this way
Mobile terminal provide basic communication functions when, mobile terminal should have receiver.Traditional receiver is as shown in Figure 1, packet
It includes comprising 110 front covers, 111 top domes, 112 diaphragms, 113 voice coils, 114 plastic rubber brackets, 115 washers, 116 magnetites, 117 magnetic bowls.It passes
System receiver working principle: realize that voice coil or more shakes by the magnetic line of force that 116 magnetites of cutting issue after 113 voice coil feed-in electric signals
Dynamic, i.e. electricity-power conversion, voice coil, which vibrates up and down, drives 112 diaphragms and 111 top domes to vibrate up and down, and 112 diaphragms and 111 top domes push
Air issues sound wave, power-sound conversion is realized, so as to complete electricity-power-sound conversion of system.Traditional moving-coil receiver exists
Voice 20~20KHZ of frequency range, there is higher sensitivity and more smooth response, in supersonic range 20K~28KHZ sensitivity energy
Reach 80dB (5cm&1V RMS), starts sharply to decline in 28KHZ frequencies above sensitivity, and the supersonic range for emitting monomer exists
The sensitivity of 5CM free space need to reach 85dB, and the supersonic range of complete machine need to be not less than in the sensitivity of 5CM directional space
65dB, current traditional receiver are not able to satisfy.
Utility model content
The utility model provides a kind of receiver and mobile terminal, it is intended to solve the problems, such as that traditional receiver bandwidth is lower.
In a first aspect, the utility model embodiment provides a kind of receiver, comprising:
The top of fixed cover, the fixed cover has opening；
Vibrating diaphragm, the vibrating diaphragm is mounted in the fixed cover, and the vibrating diaphragm closes the opening；
Actuator, the actuator are mounted in the fixed cover, the actuator be located at the fixed cover bottom surface and
Between the vibrating diaphragm, the cavity bottom surface interval that the actuator and the fixed cover are formed is arranged, the actuator and institute
The setting of vibrating diaphragm interval is stated, the actuator is piezoelectric material, and the actuator is electrically connected with the fixed cover；
Connector, the connector are located between the actuator and the vibrating diaphragm, and the connector respectively with
The actuator is connected with the vibrating diaphragm.
Further, further includes:
Top dome, the top dome be located at the vibrating diaphragm far from the actuator side, and the top dome with it is described
Vibrating diaphragm is connected.
Further, the cross section of the vibrating diaphragm is greater than the cross section of the top dome, and the top dome is connected to institute
State the middle part of vibrating diaphragm.
Further, the vibrating diaphragm include the first connecting portion for connecting the fixed cover, the connection top dome the
Two interconnecting pieces and the third interconnecting piece between the first connecting portion and the second connecting portion, wherein the third connects
Socket part protrusion and the first connecting portion and the second connecting portion.
Further, the fixed cover includes:
Pcb board；
The first support of annular, axial one end of the first support are connected on the pcb board, the vibrating diaphragm position
It is connected in the first support and with the first support, the actuator is located in the first support.
Further, further includes:
Second support, the second support are located in the first support, and the actuator is mounted on described second
On frame, the positive and negative anodes of the actuator are electrically connected with the pcb board respectively.
Further, the fixed cover further includes front cover, and the front cover is mounted on the separate PCB of the first support
One end of plate.
Further, the top dome includes the first metal plate, the second metal plate and filling and first metal plate and institute
The foaming piece between the second metal plate is stated, the foaming piece is connected with first metal plate and second metal plate respectively.
Further, the actuator is formed as patch of piezoelectric material.
Second aspect, the utility model embodiment additionally provide a kind of mobile terminal, the mobile terminal include it is described by
Talk about device.
In the utility model embodiment, the receiver eliminates voice coil and magnetic circuit inside traditional moving-coil receiver, leads to
Crossing the actuator made of piezoelectric material pushes vibrating diaphragm sounding to promote receiver high-frequency sensitivity effectively.
Detailed description of the invention
Fig. 1 shows the sectional view of the utility model traditional receiver described in background technology；
Fig. 2 shows the receiver sectional views provided in the utility model embodiment；
Fig. 3 shows the receiver explosive view provided in the utility model embodiment；
Fig. 4 shows the curve graph of receiver and traditional frequency response of receiver in the utility model embodiment.
Wherein, 110- front cover, 111- top dome, 112- diaphragm, 113- voice coil, 114- plastic rubber bracket, 115- washer, 116- magnetic
Stone, 117- magnetic bowl；
210- front cover, 211- top dome, 212- diaphragm, 213- connecting rod, 214- second support, 215- patch of piezoelectric material, 216-
First support, 217-PCB plate.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
It clearly and completely describes, it is clear that the embodiments are a part of the embodiments of the present invention, rather than whole implementation
Example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without creative efforts
The every other embodiment obtained, fall within the protection scope of the utility model.
A kind of receiver is disclosed in the utility model embodiment, comprising:
The top of fixed cover, the fixed cover has opening；
Vibrating diaphragm, the vibrating diaphragm is mounted in the fixed cover, and the vibrating diaphragm closes the opening；
Actuator, the actuator are mounted in the fixed cover, the actuator be located at the fixed cover bottom surface and
Between the vibrating diaphragm, the bottom surface interval for the cavity that the actuator and the fixed cover are formed is arranged, the actuator with
The vibrating diaphragm interval setting, the actuator is piezoelectric material, and the actuator is electrically connected with the fixed cover；
Connector, the connector are located between the actuator and the vibrating diaphragm, and the connector respectively with
The actuator is connected with the vibrating diaphragm.
In the present embodiment, the receiver is applied in the electronic equipments such as the mobile terminal with receiver, such as: hand
Machine, palm PC, tablet computer, navigator, hearing aid or wearable device etc. have the mobile terminal of call function.
In the present embodiment, pass through the actuator feed-in electric signal made of piezoelectric material being mounted in the fixed cover
After generate mechanical oscillation, drive the connector and the vibrating diaphragm connecting with the connector to vibrate, the vibrating diaphragm into
And air is pushed to issue sound wave, realize the conversion of power-sound.The actuator is piezoelectric material, and the vibrating diaphragm passes through institute
Stating connector and being connected with the actuator can make the receiver in the sensitivity of high and low frequency section in 5CM directional space
It is maintained at 65dB or more, and is maintained near 85dB in most of frequency range, while the voice frequency range of the receiver can
Reach 45KHz.
Further, the receiver further includes top dome, and the top dome is connected with the vibrating diaphragm；The vibrating membrane
The longitudinal cross-section of piece is greater than the longitudinal cross-section of the top dome, and the top dome is connected to the middle part of the vibrating diaphragm.
The vibrating diaphragm include connect the first connecting portion of the fixed cover, the second connecting portion of the connection top dome and
Third interconnecting piece between the first connecting portion and the second connecting portion, wherein third interconnecting piece protrusion with
The first connecting portion and the second connecting portion.
The top dome includes the first metal plate, the second metal plate and filling and first metal plate and second metal
Foaming piece between plate, the foaming piece are connected with first metal plate and second metal plate respectively.
In the present embodiment, optionally, the top dome be can be set at the intermediate position of the vibrating diaphragm, be used to support institute
State vibrating diaphragm.The top dome is connected by the component for having viscosity with the vibrating diaphragm, the component for having stickiness
It may include double-sided adhesive.The vibrating diaphragm includes the first connecting portion for connecting the fixed cover, connects the second of the top dome
Interconnecting piece and the third interconnecting piece between the first connecting portion and the second connecting portion, wherein the third connection
Portion's protrusion and the first connecting portion and the second connecting portion.The third interconnecting piece has pattern structure, the decorative pattern tool
Have it is pliable, for adjusting the frequency response curve of the receiver.
Optionally, the top dome includes two layers of aluminium foil and the foamed material that is set between two layers of aluminium foil.
Further, the fixed cover includes: pcb board；Axial one end of the first support of annular, the first support connects
It connects on the pcb board, the vibrating diaphragm is located in the first support and is connected with the first support, the actuator
It is located in the first support；Front cover, the front cover are mounted on one end far from the pcb board of the first support.
The receiver further include: second support, the second support are located in the first support, and the actuator
It is mounted in the second support, the positive and negative anodes of the actuator are electrically connected with the pcb board respectively.
In the present embodiment, optionally, the axial cross section of the first support is identical as the cross section of the pcb board, institute
It states vibrating diaphragm to be set to inside the first support, and the inner surface of the ring structure of the first support and the vibrating membrane
The cross section of piece is in contact.The cross section size having the same of the cross section of the actuator and the vibrating diaphragm, and
It is equally contained in inside the ring structure of the first support.The second support has ring structure, the actuator installation
In the ring structure, the actuator is formed as patch of piezoelectric material, and the positive and negative anodes of the actuator are electrically connected with the pcb board
It connects, for providing electric signal for actuator.Wherein, placement direction the present embodiment of the positive and negative anodes of actuator is with no restrictions.
Referring to Fig. 2 and Fig. 3, the utility model embodiment discloses a kind of receiver, the receiver include top dome 211,
Vibrating diaphragm 212, connector 213, actuator 215, second support 216, first support 214, pcb board 217 and front cover 210；
The actuator 215 is connected by connector 213 with vibrating diaphragm 212, and the top dome 211 is placed in vibrating diaphragm
On 212 first surface；
Mechanical oscillation occur after the 215 feed-in electric signal of actuator, and the mechanical oscillation are passed by connector 213
Vibrating diaphragm 212 and top dome 211 are passed, so that vibrating diaphragm 212 and top dome 211 be driven to vibrate.
The actuator 215 is placed in second support 216, and the second support 216 is placed on pcb board 217, and
The positive and negative anodes of the actuator 215 are connected with pcb board 217.
The first support 214 is frame-type structure, is placed on the first surface of pcb board 217；
The second support 216, actuator 215, connector 213, vibrating diaphragm 212 and top dome 211 are placed in first support
Inside 214.
The front cover 210 is placed on the first surface of first support 214
In the present embodiment, the relatively traditional receiver of the receiver eliminates voice coil, washer and magnetite, inside receiver
It joined actuator 215.Mechanical oscillation occur after feed-in electric signal from pcb board 217 for the actuator 215, complete electricity-power
Conversion, and then actuator 215 drives vibrating diaphragm 212 and top dome 211 to vibrate by the connector 213 of linking, vibrating diaphragm 212
It pushes air to issue sound wave with top dome 211, the conversion of power-sound is realized, so as to complete receiver electricity-power-sound conversion.
In the present embodiment, the second support 216 is ring structure, and annular shelf portion is for placing actuator 215, ring
Shape middle section is cavity structure, and the mechanical oscillation for generating for actuator 215 provide space.The second support 216 is put
It sets on pcb board 217, the pcb board 217 is connected with the positive and negative anodes of pressure actuator 215, for providing telecommunications for actuator
Number.Wherein, placement direction the present embodiment of the positive and negative anodes of actuator 215 is with no restrictions.Actuator shape described in the present embodiment
As patch of piezoelectric material.
In the present embodiment, the first support 214 is similarly ring structure, for being placed on other components of receiver
Wherein, the front cover 210 is ring structure, and for being sealed to telephone receiver structure, the chamber portion among frame is for sending out
Sound out.
The present embodiment is added piezoelectric material and pushes vibrating membrane by removing voice coil and magnetic circuit inside traditional moving-coil receiver
Piece sounding makes receiver that can be maintained at 65dB or more in 5CM directional space in the sensitivity of high and low frequency section, and
Be maintained near 85dB in most of frequency range, while the voice frequency range of the receiver can reach 45KHz, in this way can with by
Words device uses as supersonic generator and carries out ranging, while in low frequency sensitivity, the receiver earpiece effect is not by shadow
It rings, low frequency differences when traditional piezoelectric material makees receiver use without diaphragm, sense of hearing is poor.Receiver in the present embodiment simultaneously
The outer view hole of traditional distance measuring sensor (supersonic generator, infrared inductor etc.) shared receiver can be cancelled avoids complete machine from opening more
Outer view hole, appearance is more succinct, saves mobile phone and stacks space, saves cost.
In the present embodiment, the material that the vibrating diaphragm 212 is made includes polyether-ketone or other polyester materials, the polyethers
Ketone has stronger chemical resistance and wear resistance.The top dome 211 is used to support diaphragm, including two layers of aluminium foil and foaming material
Material, the foamed material are placed between two layers of aluminium foil.The second support 216 is used to support actuator 215, the second support
216 are made of plastic cement or other plastics.The first support 214 is the frame of entire receiver, called for placing and protecting
Other components of device, are made of plastic material.The second support 216 and first support 214 select plastic material to be made, energy
Enough mitigate the weight of entire receiver.The connector 213 is used to transmit the mechanical oscillation of patch of piezoelectric material to diaphragm, by light
Material is made, and shape is cylinder, quadrilateral or other polyhedrons.
Referring to Fig. 4, the curve graph of the present embodiment receiver and traditional frequency response of receiver is shown, wherein abscissa table
It lets others have a look at acoustic frequency, ordinate indicates frequency sensitivity, and curve A is the frequency response curve of the present embodiment receiver, curve B in figure
For the frequency response curve of traditional receiver.As can be seen that the present embodiment receiver compared to traditional receiver have compared with
Good high frequency performance, and receiver provided in this embodiment is in high band, frequency sensitivity still be able to be maintained at 65dB with
On, near 85dB.
In addition, the present embodiment also discloses a kind of mobile terminal, the mobile terminal includes the receiver of previous embodiment.
Optionally, the mobile terminal includes mobile phone, tablet computer, navigator, hearing aid or wearable device.
Although the preferred embodiment of the utility model embodiment has been described, those skilled in the art are once learnt
Basic creative concept, then additional changes and modifications can be made to these embodiments.So appended claims are intended to solve
It is interpreted as including preferred embodiment and all change and modification for falling into the utility model embodiment range.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that process, method, article or terminal device including a series of elements not only wrap
Those elements are included, but also including other elements that are not explicitly listed, or further includes for this process, method, article
Or the element that terminal device is intrinsic.In the absence of more restrictions, being wanted by what sentence "including a ..." limited
Element, it is not excluded that there is also other identical elements in process, method, article or the terminal device for including the element.
The embodiments of the present invention are described above in conjunction with attached drawing, but the utility model is not limited to
The specific embodiment stated, the above mentioned embodiment is only schematical, rather than restrictive, this field it is common
Technical staff is not departing from the utility model aims and scope of the claimed protection situation under the enlightenment of the utility model
Under, many forms can be also made, these are belonged within the protection of the utility model.
Claims (10)
1. a kind of receiver characterized by comprising
The top of fixed cover, the fixed cover has opening；
Vibrating diaphragm, the vibrating diaphragm is mounted in the fixed cover, and the vibrating diaphragm closes the opening；
Actuator, the actuator are mounted in the fixed cover, and the actuator is located at the bottom surface of the fixed cover and described
Between vibrating diaphragm, the cavity bottom surface interval that the actuator and the fixed cover are formed is arranged, the actuator and the vibration
The setting of dynamic diaphragm interval, the actuator is piezoelectric material, and the actuator is electrically connected with the fixed cover；
Connector, the connector are located between the actuator and the vibrating diaphragm, and the connector respectively with it is described
Actuator is connected with the vibrating diaphragm.
2. receiver according to claim 1, which is characterized in that further include:
Top dome, the top dome are located at the side far from the actuator of the vibrating diaphragm, and the top dome and the vibration
Diaphragm is connected.
3. receiver according to claim 2, which is characterized in that the cross section of the vibrating diaphragm is greater than the top dome
Cross section, and the top dome is connected to the middle part of the vibrating diaphragm.
4. receiver according to claim 3, which is characterized in that the vibrating diaphragm includes connect the fixed cover the
One interconnecting piece, the second connecting portion of the connection top dome and between the first connecting portion and the second connecting portion the
Three interconnecting pieces, wherein the third interconnecting piece protrusion and the first connecting portion and the second connecting portion.
5. receiver according to claim 1, which is characterized in that the fixation, which is covered, includes:
Pcb board；
The first support of annular, axial one end of the first support are connected on the pcb board, and the vibrating diaphragm is located at institute
It states in first support and is connected with the first support, the actuator is located in the first support.
6. receiver according to claim 5, which is characterized in that further include:
Second support, the second support are located in the first support, and the actuator is mounted in the second support,
The positive and negative anodes of the actuator are electrically connected with the pcb board respectively.
7. receiver according to claim 5, which is characterized in that the fixed cover further includes front cover, the front cover installation
In one end far from the pcb board of the first support.
8. receiver according to claim 2, which is characterized in that the top dome includes the first metal plate, the second metal plate
And filling and the foaming piece between first metal plate and second metal plate, the foaming piece respectively with first gold medal
Belong to plate to be connected with second metal plate.
9. receiver according to claim 1, which is characterized in that the actuator is formed as patch of piezoelectric material.
10. a kind of mobile terminal, which is characterized in that the mobile terminal includes called described in any one of claims 1 to 9
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920454966.0U CN209517509U (en) | 2019-04-04 | 2019-04-04 | Receiver and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920454966.0U CN209517509U (en) | 2019-04-04 | 2019-04-04 | Receiver and mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209517509U true CN209517509U (en) | 2019-10-18 |
Family
ID=68189134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920454966.0U Active CN209517509U (en) | 2019-04-04 | 2019-04-04 | Receiver and mobile terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209517509U (en) |
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2019
- 2019-04-04 CN CN201920454966.0U patent/CN209517509U/en active Active
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