CN206226719U - High-efficient high performance moving-iron receiver - Google Patents
High-efficient high performance moving-iron receiver Download PDFInfo
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- CN206226719U CN206226719U CN201621339330.4U CN201621339330U CN206226719U CN 206226719 U CN206226719 U CN 206226719U CN 201621339330 U CN201621339330 U CN 201621339330U CN 206226719 U CN206226719 U CN 206226719U
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- vibrating diaphragm
- connecting rod
- lower cover
- high performance
- electromagnetic shielding
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Abstract
The utility model discloses a kind of moving-iron receiver of high-efficient high performance, including electromagnetic shielding shell, vibrating diaphragm and magnetic driving mechanism, described vibrating diaphragm is fixed in the inner chamber of the electromagnetic shielding shell and the inner chamber of the electromagnetic shielding shell is divided into ante-chamber and back cavity, the magnetic driving mechanism includes connecting rod, tongue, the iron blade of a sword, magnet, coil, pcb board, the non-end of vibrating diaphragm is provided with tie rod holes, connecting rod one end is connected with the end of tongue free end, the other end of connecting rod is connected through tie rod holes with vibrating diaphragm, because the link position of connecting rod and vibrating diaphragm is arranged on the non-end positions of vibrating diaphragm, under identical tongue and connecting rod Oscillation Amplitude, effectively improve the amplitude of diaphragm, so as to improve the output sensitivity and efficiency of receiver, advantageously reduce the distortion of moving-iron receiver.
Description
Technical field
The utility model devises a kind of moving-iron receiver of high-efficient high performance.
Background technology
Moving-iron receiver is a kind of efficiency sounding component very high, and the sound mainly as products such as audiphone, earphones is defeated
Go out element.Operation principle：In the presence of tone currents, the tongue in magnetic field can move up and down, so as to drive vibrating diaphragm
Piece up-down vibration and send sound.
The vibrating diaphragm of receiver is a mechanism for similar lever, as shown in Fig. 2 vibrating diaphragm includes film frame and diaphragm, diaphragm
One end is connected with film frame, the free up-down vibration of the other end, so as to drive air vibration.Vibrating diaphragm is divided into A, B, C by length is third
Three sections of regions, vibrating diaphragm forms tie point in C areas end, and hinge-like mode, the connecting rod of traditional receiver is all connected to the A of vibrating diaphragm
Region, its defect is that vibrating diaphragm is constrained by leverage, and under identical connecting rod Oscillation Amplitude drives, the amplitude of vibrating diaphragm is without maximum
Change.
Utility model content
The purpose of this utility model is to provide a kind of moving-iron receiver of high-efficient high performance, improves moving-iron receiver sensitive
Degree and efficiency.
To reach above-mentioned purpose, the technical solution adopted in the utility model is：
A kind of moving-iron receiver of high-efficient high performance, including electromagnetic shielding shell, vibrating diaphragm and magnetic driving mechanism, described shakes
Film is fixed in the inner chamber of the electromagnetic shielding shell and the inner chamber of the electromagnetic shielding shell is divided into ante-chamber and back cavity, described
Magnetic driving mechanism includes the end of connecting rod, tongue, the iron blade of a sword, magnet, coil, pcb board, connecting rod one end and tongue free end
Connection, the other end of connecting rod is connected with vibrating diaphragm, and connecting rod is arranged on the central region of vibrating diaphragm with the link position of vibrating diaphragm.Vibrating diaphragm includes
Film frame and diaphragm, the amplitude of the amplitude less than end diaphragm of the diaphragm of central region, connecting rod is connected with the vibrating diaphragm of central region,
Under identical tongue and connecting rod Oscillation Amplitude, the amplitude of diaphragm is effectively improved, so as to improve the output spirit of receiver
Sensitivity and efficiency, advantageously reduce the distortion of moving-iron receiver.
Further, the central region of described vibrating diaphragm refer to along vibrating diaphragm length direction away from vibrating diaphragm one end 1/3-2/3 away from
From region, connecting rod is connected with vibrating diaphragm in this region, can obtain output sensitivity and efficiency higher, and receiver performance is good.
Used as a kind of preferred scheme of high-efficient high performance receiver described in the utility model, vibrating diaphragm is provided with tie rod holes, even
Bar is connected through tie rod holes with vibrating diaphragm, further, flexible glue is provided between described connecting rod and vibrating diaphragm, by flexible glue by connecting rod with shake
Film is fixed, and has both been avoided that connecting rod is rigidly connected with vibrating diaphragm, even vibration of bar can effectively be passed into vibrating diaphragm again, further, institute
The shore hardness scope for stating flexible glue is 15A-50A.
Obtain a kind of preferred scheme as high-efficient high performance receiver described in the utility model, described electromagnetic shielding shell by
Upper lid and lower cover are formed, and upper lid is identical with lower cover horizontal cross-section size, and symmetrical assembling can so keep the outer of electromagnetic shielding shell
Shape rule.
Obtain a kind of preferred scheme as high-efficient high performance receiver described in the utility model, described electromagnetic shielding shell by
Upper lid and lower cover are formed, and upper lid is of different sizes with lower cover horizontal cross-section, by not waiting dislocation assembling, flexibly control ante-chamber and back cavity
Volume, can be directed to different product different demands carry out particular design.
Further, upper lid is identical with lower cover width, and upper lid length is less than lower cover length, upper lid front end and lower cover during assembling
Front end is alignd, and in the case of ante-chamber constancy of volume, by increasing the length of lower cover, increased the volume of back cavity, is conducive to moving
Iron receiver lifts low frequency sensitivity, reduces low-frequency distortion.
Further, the pcb board is arranged on lid end and lower cover junction, and pcb board is connected to be formed with upper lid, lower cover
Electromagnetic shielding shell, pcb board is fixed on electromagnetic shielding shell outside, and under conditions of receiver equal length, ante-chamber or back cavity can
It is bigger with what is designed, the low frequency sensitivity of receiver response curve can be improved, distortion is reduced, such that it is able to design more property
The excellent receiver of energy.
Beneficial effect：
The moving-iron receiver structure of high-efficient high performance disclosed in the utility model, by changing connecting rod in the connection position of diaphragm
Put, under identical tongue and connecting rod Oscillation Amplitude, effectively improve the amplitude of diaphragm, so as to improve the output of receiver
Sensitivity and efficiency, advantageously reduce the distortion of moving-iron receiver.
Brief description of the drawings
Fig. 1 is the Novel receiver schematic diagram described in embodiment 1；
Fig. 2 is receiver region division schematic diagram.
Wherein：
2- lower cover 3- sound tube 4- vibrating diaphragm 5- flexible glue 6- connecting rod 7- tongue 8- iron blade of a sword 9- magnet 10- is covered on 1-
Coil 11-PCB.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Receiver sound hole is set to " preceding " end of receiver, the direction away from sound hole is receiver in the utility model
" afterwards " end.More than vibrating diaphragm electromagnetic shielding shell inner chamber is ante-chamber, and the electromagnetic shielding shell inner chamber below vibrating diaphragm is back cavity, upper lid,
" horizontal cross-section " of lower cover refers to the section along vibrating diaphragm parallel direction.
As shown in figure 1, a kind of high-efficient high performance receiver, including upper lid 1, lower cover 2, vibrating diaphragm 4, upper lid 1 and lower cover 2 are assembled
Synthesis electromagnetic shielding shell, vibrating diaphragm 4 is fixed in electromagnetic shielding shell and for inner space to be divided into ante-chamber and back cavity, vibrating diaphragm and upper lid top panel
Between the space that is formed be ante-chamber, the cavity formed between vibrating diaphragm and lower lid top panel is back cavity, and sound tube 3 is arranged on electromagnetic shielding shell
Outer one end.
Magnetic driving mechanism includes connecting rod 6, tongue 7, the iron blade of a sword 8, magnet 9, coil 10, pcb board 11, coil 10, the iron blade of a sword
8th, magnet 9 is sheathed on tongue, and coil 10 is connected by lead with pcb board 11；The lower end of connecting rod 6 and the free end of tongue 7
End connects, and the upper end of connecting rod 6 is fixed with vibrating diaphragm 4, under the drive of tongue 4, vibrating diaphragm 4 and the synchronous vibration of tongue free end.
The tie point of connecting rod 6 and vibrating diaphragm 4 is arranged on the central region of vibrating diaphragm, and the central region of vibrating diaphragm refers to long along vibrating diaphragm
Degree direction is located at region of the vibrating diaphragm away from vibrating diaphragm one end 1/3-2/3 distances, as shown in Fig. 2 vibrating diaphragm is divided into A, B, C by length is third
Three sections of regions, wherein B regions are central region, the tie point of vibrating diaphragm of the prior art and connecting rod all in vibrating diaphragm a-quadrant,
Its defect is that vibrating diaphragm is constrained by leverage, and under identical connecting rod Oscillation Amplitude drives, the amplitude of vibrating diaphragm is not maximized, this
The link position of connecting rod and vibrating diaphragm is arranged on central region in embodiment, because the amplitude of central region vibrating diaphragm is more than a-quadrant
Vibrating diaphragm amplitude, so as to greatly improve the output sensitivity and efficiency of receiver, advantageously reduce the distortion of moving-iron receiver.
The central region of vibrating diaphragm is provided with tie rod holes formed therein, the upper end of connecting rod 6 passes through tie rod holes and vibrating diaphragm 4
Connection, further, is provided with flexible glue 7 between connecting rod 6 and vibrating diaphragm 4, and connecting rod is fixed with vibrating diaphragm by flexible glue 7.Flexible glue 7 is used
Be shore hardness be 15A-50A flexible glue.
The horizontal cross-section of upper lid 1 and lower cover 2 can be with identical, it is also possible to different.As shown in figure 1, upper lid and lower cover width phase
Together, upper lid length is less than lower cover length, and upper lid front end is alignd with lower cover front end during assembling, in the case of ante-chamber constancy of volume,
By increasing the length of lower cover, the volume of back cavity is increased, be conducive to moving-iron receiver to lift low frequency sensitivity, reduced low frequency and lose
Very.
Claims (9)
1. a kind of high-efficient high performance moving-iron receiver, including electromagnetic shielding shell, vibrating diaphragm and magnetic driving mechanism, described vibrating diaphragm are consolidated
Due to being divided into ante-chamber and back cavity, the magnetic force in the inner chamber of the electromagnetic shielding shell and by the inner chamber of the electromagnetic shielding shell
Drive mechanism includes connecting rod, tongue, the iron blade of a sword, magnet, coil, pcb board, and connecting rod one end connects with the end of tongue free end
Connect, the other end of connecting rod is connected with vibrating diaphragm, connecting rod is arranged on the central region of vibrating diaphragm with the link position of vibrating diaphragm.
2. high-efficient high performance moving-iron receiver according to claim 1, it is characterised in that：The central region of described vibrating diaphragm
Refer to the region away from vibrating diaphragm one end 1/3-2/3 distances along vibrating diaphragm length direction.
3. high-efficient high performance moving-iron receiver according to claim 2, it is characterised in that：The vibrating diaphragm is provided with tie rod holes,
Connecting rod is connected through tie rod holes with vibrating diaphragm.
4. high-efficient high performance moving-iron receiver according to claim 3, it is characterised in that：It is provided between the connecting rod and vibrating diaphragm
Flexible glue.
5. high-efficient high performance moving-iron receiver according to claim 4, it is characterised in that：The shore hardness model of the flexible glue
It is 15A-50A to enclose.
6. high-efficient high performance moving-iron receiver according to claim 2, it is characterised in that：The electromagnetic shielding shell is by upper lid
Formed with lower cover, upper lid is identical with lower cover horizontal cross-section size, symmetrical assembling.
7. high-efficient high performance moving-iron receiver according to claim 2, it is characterised in that：The electromagnetic shielding shell is by upper lid
Formed with lower cover, upper lid and lower cover horizontal cross-section are of different sizes.
8. high-efficient high performance moving-iron receiver according to claim 7, it is characterised in that：The upper lid and lower cover width phase
Together, upper lid length is less than lower cover length, and upper lid front end is alignd with lower cover front end during assembling.
9. high-efficient high performance moving-iron receiver according to claim 8, it is characterised in that：The pcb board is arranged on lid
End and lower cover junction, pcb board are connected to form electromagnetic shielding shell with upper lid, lower cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621339330.4U CN206226719U (en) | 2016-12-08 | 2016-12-08 | High-efficient high performance moving-iron receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621339330.4U CN206226719U (en) | 2016-12-08 | 2016-12-08 | High-efficient high performance moving-iron receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206226719U true CN206226719U (en) | 2017-06-06 |
Family
ID=58784925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621339330.4U Active CN206226719U (en) | 2016-12-08 | 2016-12-08 | High-efficient high performance moving-iron receiver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206226719U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106550309A (en) * | 2016-12-08 | 2017-03-29 | 苏州亿欧得电子有限公司 | High-efficient high performance moving-iron receiver |
-
2016
- 2016-12-08 CN CN201621339330.4U patent/CN206226719U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106550309A (en) * | 2016-12-08 | 2017-03-29 | 苏州亿欧得电子有限公司 | High-efficient high performance moving-iron receiver |
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