Novel receiver diaphragm structure

Abstract

The utility model relates to the technical field of balanced armature receivers, in particular to a novel receiver diaphragm structure, which comprises a forming frame, a thin film layer and a vibrating reed, the thin film layer is mounted on the inner side of the forming frame, and the vibrating reed is mounted on the inner side of the thin film layer; the top of the vibrating reed is provided with an annular-frame-shaped recess, and the inner surface of the thin film layer is provided with a first annular-frame-shaped clamping groove clamped with the annular-frame-shaped recess. The design that the first ring-frame-shaped clamping groove and the second ring-frame-shaped clamping groove are clamped and wrapped on the surfaces of the ring-frame-shaped recess and the ring-frame-shaped positioning strip is adopted, so that the indirect contact area between the film layer and the forming frame and the vibrating reed can be increased; the thin film layers can correspondingly restrain the vibrating reed and prevent the thin film layers from being stripped from the annular frame-shaped positioning strips, so that the vibrating reed can stably run on the forming frame.

Description

TECHNICAL FIELD

[0001] The utility model relates to balanced armature receiver technical field, especially a new receiver diaphragm structure. BACKGROUND

[0002] The diaphragm is the core component in the balanced armature receiver, and the receiver completes the electric sound conversion by compressing air through the diaphragm vibration, and the diaphragm part of the balanced armature receiver mainly uses TPU, Mylar and the like as raw materials at present, and adopts a'sandwich' structure, that is, the vibration piece is at the bottom, the film is laid on the top, and then a forming frame is pressed on, and the hot-pressing is combined together.

[0003] At present, the Chinese patent discloses a high-temperature-resistant composite diaphragm of an electro-acoustic transducer (authorized publication number CN208462043U), the composite diaphragm of the utility model replaces the thermoplastic polyurethane film layer in the traditional diaphragm into a high-molecular polymer film layer, and a coupling layer is arranged to bond the high-molecular polymer film layer and the base layer, the environmental temperature that the diaphragm and the entire electro-acoustic transducer can withstand is increased from the traditional 75 DEG C to above 265 DEG C, the application field of the electro-acoustic transducer is increased, and at the same time, the electro-acoustic transducer can adopt more production processes, especially the electro-acoustic transducer can adopt the SMT process for high-speed assembly, and the production efficiency of the electro-acoustic transducer is improved.

[0004] Since the above-mentioned device adopts the adhesive coupling layer to connect the base layer and the film layer together, the contact area of the base layer and the film layer with the coupling layer is small, and with the extension of the use time or the external force, the coupling layer will gradually peel off from the base layer and the film layer, which will increase the instability of the diaphragm operation and shorten the service life of the diaphragm.

[0005] Therefore, a new receiver diaphragm structure is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0006] The utility model discloses a new receiver diaphragm structure to solve the above-mentioned problems, and the problems of the existing new receiver diaphragm structure that the film layer is easy to peel off and the overall operation stability of the diaphragm is increased are solved.

[0007] The utility model discloses a new receiver diaphragm structure through the following technical scheme to realize the above-mentioned purpose, a new receiver diaphragm structure, including: forming frame, film layer and vibration piece, the film layer is installed in the inside of forming frame, the vibration piece is installed in the inside of film layer.

[0008] Preferably, the top of the vibrating plate is provided with a ring frame-shaped recess, the inner surface of the diaphragm layer is provided with a first ring frame-shaped clamping groove matched with the ring frame-shaped recess, the inner surface of the forming frame is provided with a ring frame-shaped positioning strip, and the outer surface of the diaphragm layer is provided with a second ring frame-shaped clamping groove matched with the ring frame-shaped positioning strip. The design that the first ring frame-shaped clamping groove and the second ring frame-shaped clamping groove are respectively clamped and wrapped on the surfaces of the ring frame-shaped recess and the ring frame-shaped positioning strip can not only increase the indirect contact area of the diaphragm layer with the forming frame and the vibrating plate, but also enable the diaphragm layer to correspondingly restrain the vibrating plate and block the diaphragm layer from being peeled off from the ring frame-shaped positioning strip, so that the vibrating plate can stably operate on the forming frame.

[0009] Preferably, the vertical section shapes of the ring frame-shaped recess and the first ring frame-shaped clamping groove are matched circular arcs, which can increase the connection area of the ring frame-shaped recess and the first ring frame-shaped clamping groove, so that the vibrating plate can more stably operate on the diaphragm layer.

[0010] Preferably, the openings of the ring frame-shaped recess and the first ring frame-shaped clamping groove are upward, which can position the protruding parts of the vibrating plate and the diaphragm layer on the inner side of the forming frame, so as to achieve the effect of reducing the overall space occupied by the diaphragm.

[0011] Preferably, the vertical section shapes of the second ring frame-shaped clamping groove and the ring frame-shaped positioning strip are bulb-shaped, which can not only increase the indirect connection area of the forming frame with the diaphragm layer, but also increase the difficulty of peeling off the diaphragm layer from the ring frame-shaped positioning strip, so that the diaphragm layer and the vibrating plate can more stably operate on the forming frame.

[0012] Preferably, the diaphragm layer is a silicone material component, which can increase the high-temperature resistance of the diaphragm layer, so that the diaphragm as a whole can operate in a high-temperature environment, thereby reducing the use limitation of the receiver.

[0013] Preferably, the diaphragm layer is installed between the forming frame and the vibrating plate through an integral injection molding process, which can increase the strength of the diaphragm layer as a whole, so as to prolong the service life of the diaphragm as a whole.

[0014] The utility model discloses the beneficial effect is:

[0015] 1、adopt the design that the first ring frame-shaped clamping groove and the second ring frame-shaped clamping groove are respectively clamped and wrapped on the surfaces of the ring frame-shaped recess and the ring frame-shaped positioning strip, which can not only increase the indirect contact area of the diaphragm layer with the forming frame and the vibrating plate, but also enable the diaphragm layer to correspondingly restrain the vibrating plate and block the diaphragm layer from being peeled off from the ring frame-shaped positioning strip, so that the vibrating plate can stably operate on the forming frame;

[0016] 2. The design of the thin film layer is made of silica gel material, the silica gel has excellent temperature resistance, can be used for a long time at high temperature without performance degradation, which can increase the high temperature resistance of the thin film layer, so that the whole diaphragm can operate at high temperature of 65 DEG C and above, thereby reducing the use limit of the receiver. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 3 It is an explosion schematic diagram of the overall structure of the utility model;

[0020] Figure 4 It is Figure 2 the enlarged view of A.

[0021] In the figure: 100, forming frame; 200, thin film layer; 210, first ring frame-shaped clamping groove; 220, second ring frame-shaped clamping groove; 300, vibrating plate; 310, ring frame-shaped recess; 400, ring frame-shaped positioning strip. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0023] In specific implementation: as Figures 1-4 shown, a new receiver diaphragm structure comprises: a forming frame 100, a thin film layer 200 and a vibrating plate 300, the thin film layer 200 is installed on the inner side of the forming frame 100, and the vibrating plate 300 is installed on the inner side of the thin film layer 200. The specific installation and use mode of the whole thin film is the same as the existing disclosed technology, and the specific installation and use mode needs to be selected according to the actual situation, which will not be repeated here.

[0024] As Figure 2 , Figure 3 and Figure 4As shown, the top of the vibrating plate 300 is provided with a ring frame-shaped recess 310, the inner surface of the diaphragm layer 200 is provided with a first ring frame-shaped clamping groove 210 clamped with the ring frame-shaped recess 310, the inner surface of the forming frame 100 is provided with a ring frame-shaped positioning strip 400, and the outer surface of the diaphragm layer 200 is provided with a second ring frame-shaped clamping groove 220 clamped with the ring frame-shaped positioning strip 400. The design of clamping the surfaces of the ring frame-shaped recess 310 and the ring frame-shaped positioning strip 400 with the first ring frame-shaped clamping groove 210 and the second ring frame-shaped clamping groove 220 respectively not only increases the indirect contact area of the diaphragm layer 200 with the forming frame 100 and the vibrating plate 300, but also can correspond to the vibrating plate 300 and block the diaphragm layer 200 from peeling off from the ring frame-shaped positioning strip 400, so that the vibrating plate 300 can stably run on the forming frame 100.

[0025] The vertical sectional shape of the ring frame-shaped recess 310 and the first ring frame-shaped clamping groove 210 is a matched circular arc shape, which can increase the connection area of the ring frame-shaped recess 310 and the first ring frame-shaped clamping groove 210, so that the vibrating plate 300 can run more stably on the diaphragm layer 200.

[0026] The openings of the ring frame-shaped recess 310 and the first ring frame-shaped clamping groove 210 are upward, which can position the protruding part of the vibrating plate 300 and the diaphragm layer 200 on the inner side of the forming frame 100, so as to achieve the effect of reducing the overall space occupied by the diaphragm.

[0027] The vertical sectional shape of the second ring frame-shaped clamping groove 220 and the ring frame-shaped positioning strip 400 is a bulb shape, which not only increases the indirect connection area of the forming frame 100 and the diaphragm layer 200, but also increases the difficulty of peeling off the diaphragm layer 200 from the ring frame-shaped positioning strip 400, so that the diaphragm layer 200 and the vibrating plate 300 run more stably on the forming frame 100.

[0028] The diaphragm layer 200 is a silicone material component, and the silicone material here is high-temperature vulcanized silicone rubber. This kind of silicone has excellent temperature resistance and can be used for a long time at high temperature without performance degradation, which can increase the high-temperature resistance of the diaphragm layer 200, so that the whole diaphragm can run in a high-temperature environment of 65℃ and above, thereby reducing the use limitation of the receiver.

[0029] The diaphragm layer 200 is installed between the forming frame 100 and the vibrating plate 300 by an integral injection molding process, which can increase the overall strength of the diaphragm layer 200 to prolong the service life of the whole diaphragm.

[0030] Before the production of the diaphragm, the forming frame 100 and the ring frame positioning strip 400 are first made by injection molding or CNC cutting process, the specific method needs to be selected according to the actual situation, then the raw material of the vibrating plate 300 is put into the punching machine to produce the vibrating plate 300 through the punching process, then the cavity of the forming frame 100, the film layer 200, the vibrating plate 300 and the ring frame positioning strip 400 is opened in advance in the injection mold for injection of the film layer 200, then the forming frame 100 with the ring frame positioning strip 400 and the vibrating plate 300 are placed in the corresponding position in the injection mold, then the injection machine is operated to heat the silica gel raw material to liquid state and introduce it into the gap in the injection mold, so that the liquid silica gel raw material fills the remaining gap in the injection mold, until the liquid silica gel raw material forms the film layer 200 and cools and solidifies, then the injection mold is opened, the diaphragm is removed as a whole, and finally the film layer 200 is manually removed. The burr can be removed.

[0031] It should be noted that the injection molding machine and the punching machine in the above description are both mature devices in the prior art, and the specific model can be selected according to the actual needs, and the power supply of the injection molding machine and the punching machine can be built-in power supply or mains power supply, and the specific power supply mode is selected as the case may be, which is not described here.

[0032] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. A new receiver diaphragm structure, characterized by, Include: The forming frame (100), the film layer (200) and the vibrating reed (300), the film layer (200) is installed in the inner side of forming frame (100), the vibrating reed (300) is installed in the inner side of film layer (200); Wherein, the top of vibrating reed (300) is provided with ring frame recess (310), the inner surface of film layer (200) is provided with first ring frame card slot (210) with ring frame recess (310) card joint, the inner surface of forming frame (100) is ring frame positioning strip (400), the outer surface of film layer (200) is provided with second ring frame card slot (220) with ring frame positioning strip (400) card joint.

2. A new receiver diaphragm structure according to claim 1, characterized in that: The vertical section shape of ring frame recess (310) and first ring frame card slot (210) is matched circular arc shape.

3. A new receiver diaphragm structure according to claim 1, characterized in that: The opening of ring frame recess (310) and first ring frame card slot (210) is upward.

4. A new receiver diaphragm structure according to claim 1, characterized in that: The vertical section shape of second ring frame card slot (220) and ring frame positioning strip (400) is bulb shape.

5. A new receiver diaphragm structure according to claim 1, characterized in that: The film layer (200) is silicone material component.

6. A new receiver diaphragm structure according to claim 1, characterized in that: The film layer (200) is installed between forming frame (100) and vibrating reed (300) by integral injection molding process.

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