CN209497587U - A kind of receiver - Google Patents

Abstract

The utility model provides a kind of receiver comprising: shell, with hollow lumen；Vibrating diaphragm mechanism is set in the hollow lumen, hollow lumen is divided into the first cavity and the second cavity, vibrating diaphragm mechanism includes vibration plate, and the fixing end of vibration plate is connected on the inner wall of the shell, and the free end of vibration plate is vacantly set in the hollow lumen；Electromagnetic drive mechanism is set in hollow lumen comprising at least one coil block and at least one magnetic field component, wherein each magnetic field component is set in the first cavity or the second cavity, and the magnetic field component is close to the free end of vibration plate；Each coil block is set in the first cavity or the second cavity, and the coil block and is provided with predetermined gap between the coil block and the fixing end of oscillating plate close to the fixing end of oscillating plate.Compared with prior art, the utility model can reduce the connection between moving component, to simplify assembly technology, reduce manufacturing cost.

Description

A kind of receiver

[technical field]

The utility model belongs to electroacoustic switch technology field, in particular to a kind of receiver.

[background technique]

Receiver is also earpiece, is a kind of electricity that audio electrical signal is converted into voice signal under voiceless sound leak condition Acoustic device is widely used in the communication terminal devices such as mobile phone, fixed-line telephone and hearing aid, realizes the output of audio.

It please refers to shown in Fig. 1, is a kind of receiver in the prior art comprising shell 110, diaphragm 120 and electricity Magnetic driving mechanism, diaphragm 120 are arranged in shell 110 and the inner cavity of shell are divided into ante-chamber and back cavity, electromagnetic drive mechanism It is fixed in back cavity.Electromagnetic drive mechanism includes drive rod 130, reed (or armature) 140, two pieces of permanent magnets 150 and coils 160, wherein one end of reed 140 is fixed on the inner wall of the side wall of shell 110, and the other end passes through drive rod 130 and diaphragm 120 connections；Coil 160 is set in the U-shaped arc transition on reed 140 and close to reed 140, and two pieces of permanent magnets 150 are distinguished It close to the two sides up and down of 130 that one end of drive rod and is fixed on 110 inner wall of shell positioned at reed 140.

In the receiver as shown in Fig. 1, reed 140 needs to be connected with drive rod 130 (or driving plate) with diaphragm 120 It connects, using the design of drive rod 130 (or driving plate), its assembly is extremely difficult, and packaging efficiency is low, it is difficult to realize automated production, More demanding to employee skill, processing procedure is unstable, and the control of assembling quality will affect the reliability of product, and rework rate is high even to be made At scrapping, it is unfavorable for reducing manufacturing cost.Further, since the reed 140 after heat treatment easily deforms when being impacted, spring The slight deformation of piece 140 will have a huge impact properties of product, even result in product failure and unrepairable.

Therefore, it is necessary to propose a kind of improved technical solution to overcome the above problem.

[utility model content]

The purpose of this utility model is to provide a kind of receivers, and which reduce the connections between moving component, thus simple Change assembly technology, reduces manufacturing cost.

One aspect according to the present utility model, the utility model provide a kind of receiver comprising: shell has Hollow lumen；Vibrating diaphragm mechanism is set in the hollow lumen, and the hollow lumen is divided into the first cavity and the second chamber Body, the vibrating diaphragm mechanism includes vibration plate, and the fixing end of the vibration plate is connected on the inner wall of the shell, the freedom of the vibration plate End is vacantly set in the hollow lumen；Electromagnetic drive mechanism is set in the hollow lumen comprising at least one Coil block and at least one magnetic field component, wherein each magnetic field component is set in the first cavity or the second cavity, and described Magnetic field component is close to the free end of vibration plate；Each coil block is set in the first cavity or the second cavity, the coil block Close to the fixing end of oscillating plate, and predetermined gap is provided between the coil block and the fixing end of oscillating plate.

Further, the magnetic field component is for generating fixed magnetic field；The coil block generates alternating magnetic field after being powered； The vibration plate is permeability magnetic material, and the alternating magnetic field that coil block generates when being powered is introduced into the vibration plate.

Further, the shell includes the first shell formed by the first bottom surface and side wall, and by the second bottom surface with The second shell that side wall is formed, the first shell and second shell, which mutually fasten, surrounds the hollow lumen；The vibrating diaphragm machine The hollow lumen is separated into the first cavity close to the first bottom surface and the second cavity close to the second bottom surface by structure.

Further, the vibrating diaphragm mechanism further includes fixed frame and tibial membrane, and the fixed frame is fixed on the shell On side wall, there is the inner chamber body through the fixed frame thickness direction；The fixing end of the vibration plate is connected to the fixed frame Inside, free end is suspended on the fixed frame, is formed with the first gap between the free end and fixed frame of the vibration plate；Institute It states tibial membrane to be attached on a side surface of the fixed frame, and at least seals first gap.

Further, the tibial membrane correspond to the preset clearance at be provided with protrusion；The fixed frame is not lead Magnetic material carried out spring temper processing；First shell and second shell are all made of magnetic conductive material.

Further, the electromagnetic drive mechanism includes: the fixing end being set in the second cavity and close to the vibration plate First coil component；It is set to the first magnetic field component of the free end in the second cavity and close to the vibration plate；It is set to Second magnetic field component of the free end in one cavity and close to the vibration plate.

Further, the first coil component includes the first magnetic core and first coil, and the first coil is set to institute It states on the second bottom surface of second shell, first magnetic core one end is sheathed in the hollow inner hole of the first coil, another There is the predetermined gap at the fixing end interval of hollow inner hole and the vibration plate that the first coil is stretched out at end.

Further, the vibrating diaphragm mechanism further includes hinge, and the fixing end of the vibration plate is articulated with institute by the hinge The inside of fixed frame is stated, the second gap is formed between the fixing end and fixed frame of the vibration plate, and the tibial membrane covers institute State the second gap.

Further, the hinge is set to the inside of the fixed frame, the fixing end of the vibration plate be provided with it is described The notch that hinge matches.

Further, the hinge includes torsion beam and cantilever beam, by torsion beam and cantilever beam adjust hinge width, Length and/or thickness, to adjust vibration parameters.

Compared with prior art, the vibration plate in the utility model is made of permeability magnetic material, the fixing end and coil of vibration plate Component is adjacent, and is provided with predetermined space between the fixing end and coil block of vibration plate, so that the exchange that coil generates when being powered Magnetic field enters vibration plate, and acts on D.C. magnetic field and generate driving force promotion vibration plate generation vibration sounding, does not need additional driving Bar and reed simplify assembly technology to reduce the connection between moving component, reduce manufacturing cost.

[Detailed description of the invention]

It, below will be to required in embodiment description in order to illustrate more clearly of the technical solution of the utility model embodiment The attached drawing used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the utility model Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings Obtain other attached drawings.Wherein:

Fig. 1 is a kind of structural schematic diagram of receiver in the prior art；

Fig. 2 is the longitudinal profile schematic diagram of the receiver of the utility model in the first embodiment；

Fig. 3 is the structural schematic diagram of vibrating diaphragm mechanism in one embodiment in Fig. 2；

Fig. 4 is the perspective view of the explosion of vibrating diaphragm mechanism shown in Fig. 3；

Fig. 5 is the perspective view of the explosion of receiver shown in Fig. 2.

[specific embodiment]

To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, with reference to the accompanying drawing and have Body embodiment is described in further detail the utility model.

" one embodiment " or " embodiment " referred to herein, which refers to, may be included at least one realization side of the utility model A particular feature, structure, or characteristic in formula." in one embodiment " that different places occur in the present specification not refers both to The same embodiment, nor the individual or selective embodiment mutually exclusive with other embodiments.Unless stated otherwise, The word of connection, the expression electric connection for being connected, connecting herein indicates directly or indirectly to be electrical connected.

It please refers to shown in Fig. 2, is the longitudinal profile schematic diagram of the receiver of the utility model in one embodiment.

Receiver shown in Fig. 2 includes: shell 210, vibrating diaphragm mechanism 230 and electromagnetic drive mechanism (not identifying).

The shell 210 has hollow lumen 220.The vibrating diaphragm mechanism 230 is set in the hollow lumen 220, and The hollow lumen 220 is divided into the first cavity 222 and the second cavity 224.The vibrating diaphragm mechanism 230 includes vibration plate 232, institute The fixing end for stating vibration plate 232 is connected on the inner wall of the shell 210, and the free end of the vibration plate 232 is vacantly set to described In hollow lumen 220.

The electromagnetic drive mechanism is set in the hollow lumen 220, and the electromagnetic drive mechanism includes at least one Coil block 242 and at least one magnetic field component 244,246.Wherein, the magnetic field component 246,244 is set to the first cavity 222 or second in cavity 224, and the magnetic field component 244,246 is close to the free end of vibration plate 232；The coil block 242 is set It is placed in the first cavity 222 or the second cavity 224, fixing end of the coil block 242 close to vibration plate 232, and the coil Predetermined gap 250 is provided between component 242 and the fixing end of oscillating plate 232.In the utility model, in order to allow vibration plate 232 to exist Resistance is smaller when work, and the fixing end of vibration plate 232 is not generated with the coil block 242 and connect, but retains small gap (i.e. predetermined gap 250), the alternating current magnetic field that coil block 242 generates when being powered directly pass through vibration plate 232 and D.C. magnetic field (i.e. institute State the magnetic field of the generation of magnetic field component 244,246) the effect generation driving force promotion generation vibration sounding of vibration plate 232.

In specific embodiment shown in Fig. 2, the shell 210 includes the first shell surrounded by the first bottom surface and side wall 212, and the second shell 214 surrounded by the second bottom surface and side wall, first shell 212 is mutually fastened with second shell 214 encloses At the hollow lumen 220, connect for example, being fixed first shell 212 and second shell 214 using gluing or electric welding mode It connects.In a preferred embodiment, first shell 212 and second shell 214 are all made of permeability magnetic material and are made.

In specific embodiment shown in Fig. 2, the vibrating diaphragm mechanism 230 is set in the first shell 212, by institute It states hollow lumen 220 and is separated into the first cavity 222 close to the first bottom surface and the second cavity 224 close to the second bottom surface.

In specific embodiment shown in Fig. 2, the electromagnetic drive mechanism is in the second cavity 224 and close including being set to The first coil component 242 of the fixing end 2322 of the vibration plate 232 is set in the second cavity 224 and close to the vibration plate 232 Free end 2324 the first magnetic field component 244, and be set to the freedom in the first cavity 222 and close to the vibration plate 232 Second magnetic field component 246 at end 2324.Wherein, the first magnetic field component 244 and the second magnetic field component 246 are opposite, coil block 242 It is spaced apart from each other with magnetic field component 244,246.

In specific embodiment shown in Fig. 2, the first coil component 242 includes the first magnetic core 2422 and first coil 2424, the first coil 2424 is set on the second bottom surface of the second shell 214,2,422 1 end cap of the first magnetic core In the hollow inner hole of the first coil 2424, the other end stretch out the hollow inner hole of the first coil 2424 with it is described Predetermined gap 250 is separated between the fixing end 2322 of vibration plate 232, first magnetic core 2422 is preferably iron core.First magnetic field Component 244 includes the first magnetic field generating member 2442 and the first magnetic inductive block 2444 for generating fixed magnetic field, first magnetic inductive block 2444 are fixed on the second bottom surface of second shell 214；First magnetic field generating member 2442 is fixed on the first magnetic inductive block 2444 On, and towards the free end of vibration plate 232 2324, and the free end 2324 of first magnetic field generating member 2442 and vibration plate 232 it Between be reserved with required gap.Second magnetic field component 246 only includes the second magnetic field generating member 2462 for generating fixed magnetic field, and described the Two magnetic field generating members 2462 are directly fixed on the first bottom surface of first shell 212, and towards the free end of vibration plate 232 2324 (or with 2442 face of the first magnetic field generating member), and the free end 2324 of second magnetic field generating member 2462 and vibration plate 232 it Between be reserved with required gap.

In a preferred embodiment, the magnetic field generating member 2442,2462 is permanent magnet.In one embodiment, The first coil component 242 can only include first coil 2424, the fixing end of first coil 2424 and the vibration plate 232 Predetermined gap is separated between 2322, so that the alternating current magnetic field for generating first coil 2424 when being powered enters vibration plate 232. In one embodiment, can only have the first magnetic field component 244, can also only with the second magnetic field component 246.

The principle that electromagnetic drive mechanism shown in Fig. 2 driving vibration plate 232 vibrates is: when being passed through exchange to first coil 2424 When electric, the alternating current magnetic field of generation enters vibration plate 232 by the first magnetic core 2422, makes vibration plate 232 with polarized, in magnetic field generating member 2442,2462 generate fixed magnetic fields (or D.C. magnetic field) under the action of so that vibration plate 232 done in vertical direction it is of reciprocating vibration, To drive tibial membrane 236 to agitate air sounding.

In summary, compared with receiver shown in FIG. 1, drive rod 130 and reed is not used in receiver shown in Fig. 2 140.Since the vibration plate 232 in Fig. 2 is made of permeability magnetic material, fixing end 2322 and the coil block 242 not company of generation It connects, but retains small gap (i.e. predetermined gap 250), the alternating current magnetic field that coil 2424 generates when being powered passes through vibration plate 232 It is acted on the fixed magnetic field that magnetic field generating member 2442,2462 generates, generates driving force and vibration plate 232 is pushed to generate vibration sounding.? That is have the function of reed using vibration plate 232 made of permeability magnetic material in the utility model, i.e., it will vibration in the utility model Plate 232 and reed two-in-one do not need additional drive rod and reed, thus reduce the connection between moving component, letter Change assembly technology, reduces manufacturing cost.

It please refers to shown in Fig. 3, is the structural schematic diagram of vibrating diaphragm mechanism in one embodiment in Fig. 2；Please refer to Fig. 4 It is shown, it is the perspective view of the explosion of vibrating diaphragm mechanism shown in Fig. 3.As shown in Figure 3 and Figure 4, the vibrating diaphragm mechanism 230 includes vibration plate 232, fixed frame 234, tibial membrane 236 and hinge 237.

On the medial surface for the side wall that the fixed frame 234 is connected to first shell 212, has and run through the fixed frame The inner chamber body 2342 of 234 thickness directions.The fixed frame 234 is non-magnetic material, can be stainless steel, aluminium or other does not lead The metal or non-metallic material of magnetic.Since fixed frame 234 is made of non-magnet material, stainless steel can be selected and carry out spring Tempering come further improve its elasticity and promoted shock resistance.

The fixing end 2322 of the vibration plate 232 is articulated with the inside of the fixed frame 234, free end by hinge 237 2324 vacantly in the fixed frame 234.In Fig. 3 and specific embodiment shown in Fig. 4, institute is set in the hinge 237 The inside of fixed frame 234 is stated, the fixing end 2322 of the vibration plate 232 is provided with the notch to match with the hinge 237, is shaking Plate 232 and fixed frame 234 can play self-positioning effect when being assembled；The outside of the free end 2324 of the vibration plate 232 The first gap 238 is formed between surface and the inner surface of fixed frame 234；The outside of the fixing end 2322 of the vibration plate 232 The second gap 239 is formed between surface and the inner surface of fixed frame 234.

The tibial membrane 236 is attached to side table of the fixed frame 234 towards the first cavity 222 independently of shell 210 in advance On face, and the first gap 238 formed between the free end 2324 and fixed frame 234 of at least sealing vibration plate 232.

In Fig. 3 and specific embodiment shown in Fig. 4, the tibial membrane 236 covers the fixing end 2322 of the vibration plate 232 The second gap 239 being formed between fixed frame 234；The tibial membrane 236 is corresponding to setting at 238 position of the first gap There is the protrusion 2362 towards the second cavity 224, due to the setting of the protrusion 2362, when vibration plate 232 drives tibial membrane 236 to vibrate When, the tibial membrane 236 can be easier to vibrate with the vibration plate.In an alternative embodiment, the pronunciation Film 236 can also be attached to fixed frame 234 towards on a side surface of the second cavity 224 in advance, raised 2362 court described at this time To the first cavity 222.

In a preferred embodiment, the hinge 238 includes torsion beam and cantilever beam (not identifying), passes through torsion beam With width, length and/or the thickness of the adjustable hinge of cantilever beam, so as to adjust vibration parameters, and then different output is obtained Frequency response curve.

It please refers to shown in Fig. 5, is the perspective view of the explosion of receiver shown in Fig. 2.Compared to Figure 1, shown in Fig. 2 and Fig. 5 Receiver inside component level it is clearly demarcated, the design of stack is very suitable to automated production so that assembly technology is simple.

In conclusion have the function of reed using vibration plate 232 made of permeability magnetic material in the utility model, i.e., it is originally practical It is novel middle by vibration plate 232 and reed two-in-one, do not need additional drive rod and reed.So that in the utility model Receiver have the advantages that or the utility model has the advantages that

(1) component level inside receiver is clearly demarcated, the design of stack so that assembly technology is simple, be very suitable to from Dynamic metaplasia produces；

(2) reduce the connection (for example, drive rod and reed) between moving component, there is higher high reliablity；

(3) new design has better shock resistance, can promote the reliability of product；

(4) less building block and simpler assembly technology obtain higher production efficiency；

(5) less building block and simpler assembly technology advantageously reduce cost.

In the present invention, the word that the expressions such as " connection ", " connected ", " company ", " connecing " are electrically connected, such as nothing are especially said It is bright, then it represents that direct or indirect electric connection.

It should be pointed out that one skilled in the art specific embodiment of the present utility model is done it is any Change the range of claims all without departing from the utility model.Correspondingly, the scope of the claims of the utility model It is not limited only to previous embodiment.

Claims (10)

1. a kind of receiver, characterized in that it comprises:

Shell, with hollow lumen；

Vibrating diaphragm mechanism is set in the hollow lumen, and the hollow lumen is divided into the first cavity and the second cavity, institute Stating vibrating diaphragm mechanism includes vibration plate, and the fixing end of the vibration plate is connected on the inner wall of the shell, and the free end of the vibration plate is outstanding Sky is set in the hollow lumen；

Electromagnetic drive mechanism is set in the hollow lumen comprising at least one coil block and at least one magnetic field Component, wherein each magnetic field component is set in the first cavity or the second cavity, and the magnetic field component is close to the freedom of vibration plate End；Each coil block is set in the first cavity or the second cavity, fixing end of the coil block close to oscillating plate, and institute It states and is provided with predetermined gap between coil block and the fixing end of oscillating plate.

2. receiver according to claim 1, which is characterized in that

The magnetic field component is for generating fixed magnetic field；

The coil block generates alternating magnetic field after being powered；

The vibration plate is permeability magnetic material, and the alternating magnetic field that coil block generates when being powered is introduced into the vibration plate.

3. receiver according to claim 1, which is characterized in that

The shell includes the first shell formed by the first bottom surface and side wall, and second formed by the second bottom surface and side wall Shell, the first shell and second shell, which mutually fasten, surrounds the hollow lumen；

The hollow lumen is separated into the first cavity close to the first bottom surface and the close to the second bottom surface by the vibrating diaphragm mechanism Two cavitys.

4. receiver according to claim 3, which is characterized in that the vibrating diaphragm mechanism further includes fixed frame and tibial membrane,

The fixed frame is fixed on the side wall of the shell, has the inner chamber body through the fixed frame thickness direction；

The fixing end of the vibration plate is connected to the inside of the fixed frame, and free end is suspended on the fixed frame, the vibration plate Free end and fixed frame between be formed with the first gap；

The tibial membrane is attached on a side surface of the fixed frame, and at least seals first gap.

5. receiver according to claim 4, which is characterized in that

The tibial membrane correspond to the predetermined gap at be provided with protrusion；

The fixed frame is non-magnetic material, carries out spring temper processing；

First shell and second shell are all made of magnetic conductive material.

6. receiver according to claim 4, which is characterized in that the electromagnetic drive mechanism includes:

It is set to the first coil component of the fixing end in the second cavity and close to the vibration plate；

It is set to the first magnetic field component of the free end in the second cavity and close to the vibration plate；

It is set to the second magnetic field component of the free end in the first cavity and close to the vibration plate.

7. receiver according to claim 6, which is characterized in that

The first coil component includes the first magnetic core and first coil,

The first coil is set on the second bottom surface of the second shell, and first magnetic core one end is sheathed on described first In the hollow inner hole of coil, the other end stretch out the first coil hollow inner hole and the vibration plate fixing end interval State predetermined gap.

8. receiver according to claim 4, which is characterized in that the vibrating diaphragm mechanism further includes hinge,

The fixing end of the vibration plate is articulated with the inside of the fixed frame by the hinge,

The second gap is formed between the fixing end and fixed frame of the vibration plate, and the tibial membrane covers second gap.

9. receiver according to claim 8, which is characterized in that

The hinge is set to the inside of the fixed frame,

The fixing end of the vibration plate is provided with the notch to match with the hinge.

10. receiver according to claim 8, which is characterized in that

The hinge includes torsion beam and cantilever beam,

Width, length and/or the thickness of hinge are adjusted, by torsion beam and cantilever beam to adjust vibration parameters.