CN210694295U - Vibrating diaphragm and telephone receiver adopting same - Google Patents
Vibrating diaphragm and telephone receiver adopting same Download PDFInfo
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- CN210694295U CN210694295U CN201921501720.0U CN201921501720U CN210694295U CN 210694295 U CN210694295 U CN 210694295U CN 201921501720 U CN201921501720 U CN 201921501720U CN 210694295 U CN210694295 U CN 210694295U
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Abstract
The utility model provides a vibrating diaphragm and adopt receiver of this vibrating diaphragm, the vibrating diaphragm includes: a fixed frame having an inner cavity penetrating the fixed frame in a thickness direction; the hinge end of the vibrating plate is connected with the fixed frame, and the vibrating end of the vibrating plate is suspended in the fixed frame; and the stretching part comprises at least one stretching sub-part, the stretching sub-part is formed by stretching a corresponding stretching area on the vibrating plate relative to a non-stretching area of the vibrating plate, the stretching sub-part is convex relative to one surface of the vibrating plate and concave relative to the other surface of the vibrating plate, and the one surface and the other surface are two opposite surfaces on the vibrating plate. Compared with the prior art, the utility model discloses the board that shakes to in the vibrating diaphragm adopts the local tensile design to can satisfy the requirement of mode and stiffness simultaneously, promote the performance of receiver.
Description
[ technical field ] A method for producing a semiconductor device
The utility model belongs to the technical field of the electroacoustic conversion, in particular to vibrating diaphragm design and adopt balanced armature receiver of formula of driving directly of this vibrating diaphragm.
[ background of the invention ]
A receiver, also called a headphone, is an electroacoustic device which converts an audio electrical signal into a sound signal under the condition of no sound leakage, and is widely used in communication terminal equipment such as mobile phones, fixed phones and hearing aids to realize audio output.
Fig. 1 is a schematic structural diagram of a diaphragm 100 of a conventional direct-drive balanced armature receiver in an embodiment; fig. 2 is an exploded view of the diaphragm shown in fig. 1. The diaphragm shown in fig. 1 and 2 is composed of three parts, namely a fixed frame 110, a vibrating plate 120 and a membrane 130, wherein the vibrating plate 120 has both functions of magnetic conduction and air blowing as a vibrating part. At present, the vibrating plate mostly adopts a flat plate type design as shown in fig. 1, and the flat plate type vibrating plate design cannot meet the requirements of mode and stiffness at the same time, which brings great limitation to the performance of a receiver.
Therefore, there is a need for an improved solution to overcome the above problems.
[ Utility model ] content
An object of the utility model is to provide a vibrating diaphragm and adopt balanced armature receiver of formula of driving directly of this vibrating diaphragm, its requirement that can satisfy mode and stiffness simultaneously promotes the performance of receiver.
According to an aspect of the utility model, the utility model provides a vibrating diaphragm, it includes: a fixed frame having an inner cavity penetrating the fixed frame in a thickness direction; the hinge end of the vibrating plate is connected with the fixed frame, and the vibrating end of the vibrating plate is suspended in the fixed frame; and the stretching part comprises at least one stretching sub-part, the stretching sub-part is formed by stretching a corresponding stretching area on the vibrating plate relative to a non-stretching area of the vibrating plate, the stretching sub-part is convex relative to one surface of the vibrating plate and concave relative to the other surface of the vibrating plate, and the one surface and the other surface are two opposite surfaces on the vibrating plate.
Further, the stretching sub-part is arranged in a non-magnet covering area of the vibration end of the vibration plate; or the stretching sub-part is arranged in a non-magnet covering area and a magnet covering area of the vibration end of the vibration plate.
Further, the magnet coverage area is a projection of the magnet in the electromagnetic driving mechanism on the vibrating plate.
Further, the mode shape is related to the stretching parameter of the stretching portion, and different mode shapes are obtained by setting different stretching parameters, wherein the stretching parameters comprise the position, the shape, the size and the stretching height of the stretching portion.
Further, the stretching part is regular or irregular in shape; the fixing frame is made of a non-magnetic conductive material, and the vibrating plate is made of a magnetic conductive material.
Further, the shape of the stretching part is circular, rectangular, oval or polygonal.
Further, the stretching portion is vertically stretched, obliquely stretched, or circularly stretched with respect to the non-stretching region of the vibrating plate.
Furthermore, the stretching sub-parts are multiple and stretch towards the same side of the vibrating plate; or a plurality of said stretching subsections stretch to different sides of said vibrating plate.
Furthermore, be provided with arch and the recess that is used for the location respectively on board and the fixed frame shakes, the arch on the board that shakes sets up at the hinge end of reed combines with fixed frame through the mode of welding or binder.
According to the utility model discloses a further aspect, the utility model provides a receiver, it includes: a housing having a hollow interior; the vibrating diaphragm is arranged in the hollow inner cavity and divides the hollow inner cavity into a first cavity and a second cavity, and the fixing frame is fixed on the inner wall of the shell; the electromagnetic driving mechanism is arranged in the hollow inner cavity and comprises at least one magnet and at least one coil, the magnet is used for generating a fixed magnetic field, and the coil generates the alternating magnetic field after being electrified. The diaphragm includes: a fixed frame having an inner cavity penetrating the fixed frame in a thickness direction; the hinge end of the vibrating plate is connected with the fixed frame, and the vibrating end of the vibrating plate is suspended in the fixed frame; and the stretching part comprises at least one stretching sub-part, the stretching sub-part is formed by stretching a corresponding stretching area on the vibrating plate relative to a non-stretching area of the vibrating plate, the stretching sub-part is convex relative to one surface of the vibrating plate and concave relative to the other surface of the vibrating plate, and the one surface and the other surface are two opposite surfaces on the vibrating plate.
Compared with the prior art, the utility model discloses the board that shakes to in the vibrating diaphragm adopts the local tensile design to can satisfy the requirement of mode and stiffness simultaneously, promote the performance of receiver.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor. Wherein:
fig. 1 is a schematic structural diagram of a diaphragm of a conventional direct-drive balanced armature receiver in an embodiment;
FIG. 2 is an exploded view of the diaphragm of FIG. 1;
fig. 3 is a schematic cross-sectional view of a diaphragm of a receiver according to an embodiment of the present invention;
FIG. 4 is an exploded view of the diaphragm shown in FIG. 3;
fig. 5 is a schematic cross-sectional view of a direct-drive balanced armature receiver designed by using the diaphragm of the present invention in one embodiment.
[ detailed description ] embodiments
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with at least one implementation of the invention is included. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Unless otherwise specified, the terms connected, and connected as used herein mean electrically connected, directly or indirectly.
Fig. 3 is a schematic cross-sectional view of a diaphragm of a receiver according to an embodiment of the present invention. Fig. 4 is an exploded view of the diaphragm shown in fig. 3. The diaphragm of the receiver shown in fig. 3 and 4 includes a fixing frame 210, a vibrating plate 220, and a membrane 230. Adopt the utility model discloses a vibrating diaphragm is usually earlier in the manufacturing process fixed frame 210 and the board 220 equipment of shaking together, then assembles membrane 230 and shaping runway.
The fixing frame 210 is made of a non-magnetic material, preferably stainless steel, or an aluminum alloy, a copper alloy or other metal materials, or non-metal materials such as ceramic and carbon fiber. In the embodiment shown in fig. 3-4, the fixed frame 210 has an inner cavity 212 extending through the thickness of the fixed frame 210.
The vibrating plate 220 is made of a magnetic conductive material and has functions of magnetic conduction and air blowing, and specifically, the vibrating plate 220 is driven by an electromagnetic driving mechanism to vibrate in a reciprocating manner in a direction perpendicular to the vibrating plate 220, so as to drive the membrane 230 to blow air to sound. In the embodiment shown in fig. 3 to 4, the hinge end 222 of the vibration plate 220 is connected to the inner side of the fixed frame 210, the vibration end 224 thereof is suspended in the inner cavity 212 of the fixed frame 210, and a predetermined gap 250 is reserved between the outer side surface of the vibration end 224 of the vibration plate 220 and the inner side surface of the fixed frame 210 for forming a runway. In one embodiment, the vibrating plate 220 may be made of a high permeability magnetic material. In the embodiment shown in fig. 3-4, the vibrating plate 220 has a vibrating end (or vibrating region) 224 in addition to a hinge end (or hinge region) 222 connected to the fixed frame 210.
In order to obtain a higher resonant frequency, the present invention adopts a design of local stretching, as shown in fig. 3 to 4, a stretching portion 240 is designed on the vibrating plate 220, the stretching portion 240 is formed by stretching a stretching region of the vibrating plate 220 relative to a non-stretching region of the vibrating plate 220, and the stretching portion 240 is convex relative to one surface of the vibrating plate 220 and concave relative to the other surface, wherein the one surface and the other surface are two opposite surfaces on the vibrating plate 220. In the particular embodiment shown in fig. 3-4, the stretching portion 240 is convex with respect to the upper surface 226 and concave with respect to the lower surface 228 of the vibrating plate 220. The intensity and the rigidity of tensile portion 240 are promoted to make the mode move toward high frequency, make the utility model provides a vibrating diaphragm has obtained higher resonant frequency, need not increase the thickness that shakes board 220 after adopting this kind of local tensile design promptly and just can obtain higher resonant frequency.
Since the stretching settings, such as the position, shape, size, and height of the stretching portion 240, all affect the mode, different modes can be obtained by using different stretching settings in the design, so as to obtain different frequency response curves.
The stretching portion 240 is usually disposed in a non-magnet-covered region other than the hinge end 222 of the vibrating plate 220 (it can be said that the stretching portion 240 is disposed in a non-magnet-covered region of the vibrating end 224 of the vibrating plate 220), but the stretching portion 240 may cover a magnet-covered region (it can be said that the stretching portion 240 may be disposed in a non-magnet-covered region and a magnet-covered region of the vibrating end 224 of the vibrating plate 220) when the spatial layout is feasible. The magnet covering area is an area corresponding to a magnet (not shown) of the electromagnetic driving mechanism provided on the vibrating plate 220 (or a projection of the magnet on the vibrating plate 220).
The stretching part 240 may be circular, rectangular, oval, polygonal, or other regular or irregular shapes. In the embodiment shown in fig. 3-4, the stretching portion 240 is rectangular.
The stretching part 240 may be integrally provided or may be separately provided. In the embodiment shown in fig. 3-4, the stretching portion 240 is integrally formed. When the split type vibration plate is adopted, the stretching part comprises at least one stretching sub-part, the stretching sub-part is formed by stretching a corresponding stretching area on the vibration plate relative to a non-stretching area of the vibration plate, the stretching sub-part is convex relative to one surface of the vibration plate and concave relative to the other surface, and the one surface and the other surface are two opposite surfaces of the vibration plate. With the stretching portion provided separately, the plurality of stretching sub-portions may be stretched to the same side of the vibrating plate or may be stretched to different sides of the vibrating plate.
In one embodiment (not shown) of stretching to different sides of the vibrating plate, the stretching portion includes a first stretching sub-portion and a second stretching sub-portion, the first stretching sub-portion is formed by stretching the first stretching sub-region of the vibrating plate upward relative to the upper surface of the vibrating plate, and the first stretching sub-portion is convex relative to the upper surface of the vibrating plate and concave relative to the lower surface of the vibrating plate; the second stretching sub-portion is formed by stretching the second stretching sub-region of the vibrating plate downwards relative to the lower surface of the vibrating plate, and the first stretching sub-portion is concave relative to the upper surface of the vibrating plate and convex relative to the lower surface of the vibrating plate.
The stretching portion 240 may be vertically stretched with respect to the non-stretching region of the vibrating plate 220, may be formed with a constant gradient after stretching (i.e., inclined stretching), or may be stretched in a circular arc shape (i.e., circular arc stretching).
After the fixing frame 210 and the vibrating plate 220 are assembled together, the film 230 is attached to one side surfaces of the fixing frame 210 and the vibrating plate 220 and seals at least the predetermined gap 250 formed between the vibrating plate 220 and the fixing frame 210. In one embodiment, the film 240 may be made of a high-elasticity, high-ductility plastic material, such as a PU (Polyurethane) film.
In one embodiment, the vibrating plate 220 and the fixing frame 210 are provided with a protrusion and a groove for positioning, respectively. In the embodiment shown in fig. 3-4, the protrusion 229 on the vibrating plate 220 is provided at the hinge end 222, the inner side of the fixing frame 210 is provided with the groove 219 matching with the protrusion 229, and the vibrating plate 220 is combined (or connected) with the fixing frame 210 at the hinge end 222 by welding or adhesive. The projection 229 and the groove 219 are designed to perform a self-positioning function when the vibrating plate 220 and the fixing frame 210 are assembled, thereby simplifying an assembling process and improving assembling accuracy.
According to the utility model discloses a further aspect, the utility model provides a receiver specifically as shown in fig. 5, it is for adopting the utility model discloses the section schematic diagram of the balanced armature receiver of direct drive formula of vibrating diaphragm design, the receiver shown in fig. 5 includes: a housing 510 having a hollow interior (not identified); 3-4, the diaphragm 520 is disposed in the hollow inner cavity of the housing 510 to divide the hollow inner cavity into a first cavity 512 and a second cavity 514, wherein a fixing frame 522 of the diaphragm 520 is fixed on the inner wall of the housing 510; an electromagnetic drive mechanism (not identified) disposed within the hollow interior, the electromagnetic drive mechanism comprising at least one magnet (530) and at least one coil (540), the magnet 530 configured to generate a fixed magnetic field, the coil configured to generate the alternating magnetic field when energized. The basic operation principle of the receiver shown in fig. 5 is well known to those skilled in the art, and therefore, will not be described herein.
To sum up, the utility model discloses the board that shakes in to the vibrating diaphragm has adopted local tensile design to need not increase the thickness of vibrating diaphragm and just can obtain higher resonant frequency. Because the position, shape, size and stretching height of the stretching part have influence on the mode, different modes can be obtained by adopting different stretching settings in the design, and thus different frequency response curves can be obtained. Thus, the utility model provides a vibrating diaphragm can satisfy the requirement of mode and stiffness simultaneously, promotes the performance of receiver.
In the present invention, the terms "connected", "connecting", and the like denote electrical connections, and, unless otherwise specified, may denote direct or indirect electrical connections.
It should be noted that those skilled in the art can make modifications to the embodiments of the present invention without departing from the scope of the claims of the present invention. Accordingly, the scope of the claims of the present invention is not to be limited to the specific embodiments described above.
Claims (10)
1. A diaphragm, comprising:
a fixed frame having an inner cavity penetrating the fixed frame in a thickness direction;
the hinge end of the vibrating plate is connected with the fixed frame, and the vibrating end of the vibrating plate is suspended in the fixed frame;
a stretching part which comprises at least one stretching sub-part, wherein the stretching sub-part is formed by stretching a corresponding stretching area on the vibrating plate relative to a non-stretching area of the vibrating plate, and the stretching sub-part is convex relative to one surface of the vibrating plate and concave relative to the other surface of the vibrating plate,
wherein the one surface and the other surface are two opposite surfaces on the vibrating plate.
2. The diaphragm of claim 1, wherein,
the stretching sub-part is arranged in a non-magnet covering area of the vibration end of the vibration plate; or
The stretching sub-part is arranged in a non-magnet covering area and a magnet covering area of the vibration end of the vibration plate.
3. The diaphragm of claim 2 wherein,
the magnet coverage area is the projection of the magnet in the electromagnetic driving mechanism on the vibrating plate.
4. The diaphragm of claim 1, wherein,
the mode shape is related to the stretching parameter of the stretching part, different mode shapes are obtained by setting different stretching parameters,
the stretching parameters include a position, a shape, a size, and a height of the stretching portion.
5. The diaphragm of claim 1, wherein,
the stretching part is regular or irregular in shape;
the fixing frame is made of a non-magnetic conductive material, and the vibrating plate is made of a magnetic conductive material.
6. The diaphragm of claim 5, wherein,
the shape of the stretching part is circular, rectangular, oval or polygonal.
7. The diaphragm of claim 1, wherein,
the stretching part is vertically stretched, obliquely stretched or circularly stretched relative to the non-stretching area of the vibrating plate.
8. The diaphragm of claim 1 wherein the tensile sub-portion is plural,
the stretching sub-parts stretch towards the same side of the vibrating plate; or
The plurality of stretching sub-portions stretch to different sides of the vibrating plate.
9. The diaphragm of claim 1, wherein,
the vibrating plate and the fixed frame are respectively provided with a bulge and a groove for positioning,
the bulge on the vibrating plate is arranged at the hinge end, and the hinge end of the reed is combined with the fixed frame in a welding or bonding mode.
10. A receiver, comprising:
a housing having a hollow interior;
the diaphragm of claims 1-9, disposed in the hollow inner cavity to divide the hollow inner cavity into a first cavity and a second cavity, wherein the fixing frame is fixed to an inner wall of the housing;
the electromagnetic driving mechanism is arranged in the hollow inner cavity and comprises at least one magnet and at least one coil, the magnet is used for generating a fixed magnetic field, and the coil generates the alternating magnetic field after being electrified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921501720.0U CN210694295U (en) | 2019-09-10 | 2019-09-10 | Vibrating diaphragm and telephone receiver adopting same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921501720.0U CN210694295U (en) | 2019-09-10 | 2019-09-10 | Vibrating diaphragm and telephone receiver adopting same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210694295U true CN210694295U (en) | 2020-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921501720.0U Active CN210694295U (en) | 2019-09-10 | 2019-09-10 | Vibrating diaphragm and telephone receiver adopting same |
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| Country | Link |
|---|---|
| CN (1) | CN210694295U (en) |
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2019
- 2019-09-10 CN CN201921501720.0U patent/CN210694295U/en active Active
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