CN206365026U - A kind of electro-acoustic conversion device - Google Patents
A kind of electro-acoustic conversion device Download PDFInfo
- Publication number
- CN206365026U CN206365026U CN201621406907.9U CN201621406907U CN206365026U CN 206365026 U CN206365026 U CN 206365026U CN 201621406907 U CN201621406907 U CN 201621406907U CN 206365026 U CN206365026 U CN 206365026U
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- diaphragm
- housing
- vibrating reed
- electro
- conversion device
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Abstract
The utility model discloses a kind of electro-acoustic conversion device, the motor sub-assembly and diaphragm unit that are connected by connecting rod including housing and in housing, diaphragm unit includes diaphragm and vibrating reed, the madial wall connection at the edge and housing of diaphragm, the projection of the inner top of housing is provided with diaphragm, the one side of vibrating reed is fitted in the surface of diaphragm, the inner top of the another side of vibrating reed towards housing.Diaphragm is directly pasted onto on the madial wall of housing by the utility model, without using film frame, is simplified manufacturing process, is reduced production cost；Vibrating reed is placed towards housing, makes diaphragm that there is supporting role to vibrating reed, makes vibrating reed difficult for drop-off in vibrations.
Description
Technical field
The utility model belongs to electro-acoustic conversion device field, is more particularly to a kind of diaphragm applied to electroacoustic ring revolving device
Component.
Background technology
The diaphragm unit of existing electro-acoustic conversion device, vibrating reed and film frame are split-type designs, and both junctions are needed
To be bonded by glue, this structure has certain defect., it is necessary to load material in two times in manufacturing process, fill first
Enter vibrating reed, be then reloaded into frame, man-hour is longer；Vibrating reed and film frame junction are connected by glue, and the solidification of glue
Baking is needed, increases additional workhours；The number of vibrating reed and the glue quantity of film frame junction determines vibrating reed and film frame
Quality of connection, if glue quantity is very few, vibration plate easily departs from vibrations with film frame, if glue quantity is excessive, easily with other portions
Part is interfered, or causes stiffness excessive, and vibrating reed is difficult to shake.
Utility model content
The purpose of this utility model is to provide a kind of electro-acoustic conversion device, and it uses diaphragm unit simple in construction.
According to one side of the present utility model, there is provided a kind of electro-acoustic conversion device, including housing, connecting rod and position
The motor sub-assembly and diaphragm unit that are connected by connecting rod in the housing, the diaphragm unit include diaphragm and vibration
The inner top of the housing is provided with the madial wall connection of piece, the edge of the diaphragm and the housing, the diaphragm
Projection, the one side of the vibrating reed is fitted in the surface of the diaphragm, and the another side of the vibrating reed is towards in the housing
Top.
In some embodiments, the raised cross section is U-shaped.
In some embodiments, the raised global shape is U-shaped, and the vibrating reed is located at U-shaped raised inner side.
In some embodiments, the material of the diaphragm is flexible.
In some embodiments, sound mouth, the sound mouth and the raised U-shaped bottom are offered on the housing
Relatively.
In some embodiments, the diaphragm is polyurethane film.
In some embodiments, the vibrating reed and the diaphragm heat pressure adhesive.
In some embodiments, the diaphragm and the housing are bonded by glue.
In some embodiments, through hole is offered on the diaphragm, the aperture of the through hole is more than the connecting rod
Diameter, the connecting rod is located in the through hole.
In some embodiments, the motor sub-assembly includes armature, coil, magnet frame and in the magnet frame
Two blocks of magnet, two blocks of magnet do not contacted, and the magnet frame is connected with the inner bottom part of the housing, one end of the armature
It is connected with the outer surface of the magnet frame, the other end of the armature is located at two blocks of magnet through the coil, the electricity
One end that pivot is located at two blocks of magnet is provided with contiguous block, and one end of the connecting rod is connected with the contiguous block, the connection
The other end of bar is connected through the through hole with the vibrating reed.
Its advantage is：Diaphragm is directly pasted onto on the madial wall of housing by the utility model, without using film frame, letter
Change manufacturing process, reduce production cost；Vibrating reed is placed towards housing, makes diaphragm that there is supporting role to vibrating reed, makes
Vibrating reed is difficult for drop-off in vibrations.
Brief description of the drawings
Fig. 1 is a kind of structural representation of electro-acoustic conversion device of the embodiment of the utility model one；
Fig. 2 is the main view schematic cross-sectional view of diaphragm unit and partial shell in Fig. 1；
Fig. 3 is diaphragm unit and the diagrammatic side-view cross-sectional schematic diagram of partial shell in Fig. 1.
Embodiment
Fig. 1 schematically shows a kind of diaphragm group applied to electro-acoustic conversion device of embodiment of the present utility model
Part.As shown in figure 1, the electro-acoustic conversion device includes housing 1 and the diaphragm group connected by connecting rod 4 in housing 1
Part 2 and motor sub-assembly 3.
Housing 1 is cubic, and housing 1 is provided with the cavity for being used for accommodating diaphragm unit 2 and motor sub-assembly 3.Opened on housing 1
Provided with sound mouth 11, sound mouth 11 is located between diaphragm unit 2 and the inner top of housing 1.
As Figure 2-3, diaphragm unit 2 includes diaphragm 21 and vibrating reed 22.The one side of vibrating reed 22 is fitted in diaphragm 21
Surface.Vibrating reed 22 and the heat pressure adhesive of diaphragm 21 so that the more fastness that vibrating reed 22 and diaphragm 21 are connected.Set on diaphragm 21
There is through hole 23, the aperture of through hole 23 is more than the diameter of connecting rod 4, and connecting rod 4 can be freely moved up and down in through hole 23, make
Motor sub-assembly 3 can drive the vibration of vibrating reed 22 by connecting rod 4.Material for making diaphragm 21 is flexible material
Matter.In this embodiment, diaphragm 21 is polyurethane film, and elasticity is preferable, beneficial to the vibrations of vibrating reed 22.The another side of vibrating reed 22
Towards the inner top of housing 1, the edge of diaphragm 21 and the madial wall of housing 1 paste connection.Diaphragm 21 is directly pasted onto housing 1
Madial wall on, without using film frame, simplify manufacturing process, reduce production cost；By vibrating reed 22 towards the interior top of housing 1
Portion is placed, and diaphragm 21 is had supporting role to vibrating reed 22, makes vibrating reed 22 difficult for drop-off in vibrations.Diaphragm 21 and housing
1 is bonded by glue.Therefore ensure that diaphragm 21 keeps preferable elasticity.Be provided with diaphragm 21 housing 1 inner top it is convex
Play 211.The cross section of projection 211 is also U-shaped, helps to increase the Oscillation Amplitude of vibrating reed 22.Projection 211 global shape be
It is U-shaped.Vibrating reed 22 is located at U-shaped raised 211 inner side, and U-shaped raised 211 are enclosed in the periphery of vibrating reed 22.Increase vibration as far as possible
The area that piece 22 is fitted with diaphragm 21.Sound mouth 11 is offered on housing 1, sound mouth 11 is relative with the U-shaped bottom of projection 211.
The energy radiation that vibrating reed 3 vibrates generation is transmitted by sound mouth 11.
Continue as shown in figure 1, motor sub-assembly 3 includes coil 31, armature 32, magnet frame 33 and two blocks of magnet 34.Magnet frame
Provided with two blocks of magnet 34 in 33, two blocks of magnet 34 are located at the inner top and inner bottom part of magnet frame 33 respectively, and two blocks of magnet 34 do not connect
Touch.Coil 31 and magnet frame 33 are connected, and magnet frame 33 is connected with the inner bottom part of housing 1.One end of armature 32 and magnet frame 33
Outer surface is connected, and the other end of armature 32 is through coil 31 positioned at two blocks of magnet 34.Armature 32 does not connect with two blocks of magnet 34
Touch.The end that armature 32 is located at one end between two blocks of magnet 34 is provided with contiguous block 321, one end and the contiguous block 321 of connecting rod 4
Connection, the other end of connecting rod 4 is connected with vibrating reed 22.
After the coil 31 of motor sub-assembly 3 is powered, by the electromagnetization of armature 32, in the presence of magnet 34, armature 32, which is produced, to shake
Dynamic, the vibrations of vibrating reed 22 for driving diaphragm unit 2 by connecting rod 4 radiate so as to form energy, and the energy radiation of formation passes through
Sound mouth 11 is transmitted.
Above-described is only some embodiments of the present utility model.For those of ordinary skill in the art, exist
On the premise of not departing from the present utility model design, various modifications and improvements can be made, it is new that these belong to this practicality
The protection domain of type.
Claims (10)
1. a kind of electro-acoustic conversion device, including housing, connecting rod and being connected by connecting rod in the housing
Motor sub-assembly and diaphragm unit, it is characterised in that the diaphragm unit includes diaphragm and vibrating reed, the edge of the diaphragm and institute
State the projection for the inner top that the housing is provided with the madial wall connection of housing, the diaphragm, the one side of the vibrating reed
It is fitted in the surface of the diaphragm, the inner top of the another side of the vibrating reed towards the housing.
2. electro-acoustic conversion device according to claim 1, it is characterised in that the raised cross section is U-shaped.
3. electro-acoustic conversion device according to claim 1, it is characterised in that the raised global shape be it is U-shaped, it is described
Vibrating reed is located at U-shaped raised inner side.
4. electro-acoustic conversion device according to claim 1, it is characterised in that the material of the diaphragm is flexible.
5. electro-acoustic conversion device according to claim 3, it is characterised in that sound mouth is offered on the housing, described
Sound mouth is relative with the raised U-shaped bottom.
6. electro-acoustic conversion device according to claim 1, it is characterised in that the diaphragm is polyurethane film.
7. electro-acoustic conversion device according to claim 1, it is characterised in that the vibrating reed and the diaphragm hot pressing are viscous
Close.
8. electro-acoustic conversion device according to claim 1, it is characterised in that the diaphragm and the housing are viscous by glue
Close.
9. electro-acoustic conversion device according to claim 1, it is characterised in that through hole is offered on the diaphragm, described logical
The aperture in hole is more than the diameter of the connecting rod, and the connecting rod is located in the through hole.
10. electro-acoustic conversion device according to claim 9, it is characterised in that the motor sub-assembly include armature, coil,
Magnet frame and two blocks of magnet in the magnet frame, two blocks of magnet are not contacted, the magnet frame and the housing
Inner bottom part connection, one end of the armature be connected with the outer surface of the magnet frame, described in the other end of the armature is passed through
Coil is located between two blocks of magnet, and one end that the armature is located at two blocks of magnet is provided with contiguous block, the one of the connecting rod
End is connected with the contiguous block, and the other end of the connecting rod is connected through the through hole with the vibrating reed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621406907.9U CN206365026U (en) | 2016-12-21 | 2016-12-21 | A kind of electro-acoustic conversion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621406907.9U CN206365026U (en) | 2016-12-21 | 2016-12-21 | A kind of electro-acoustic conversion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206365026U true CN206365026U (en) | 2017-07-28 |
Family
ID=59373924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621406907.9U Active CN206365026U (en) | 2016-12-21 | 2016-12-21 | A kind of electro-acoustic conversion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206365026U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110290245A (en) * | 2019-06-26 | 2019-09-27 | 维沃移动通信有限公司 | Mobile terminal |
-
2016
- 2016-12-21 CN CN201621406907.9U patent/CN206365026U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110290245A (en) * | 2019-06-26 | 2019-09-27 | 维沃移动通信有限公司 | Mobile terminal |
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