CN202425033U

CN202425033U - Electroacoustic transducer

Info

Publication number: CN202425033U
Application number: CN2011205696054U
Authority: CN
Inventors: 许超; 牟宗君; 陈刚; 苗青; 邵明辉
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2011-12-30
Filing date: 2011-12-30
Publication date: 2012-09-05
Anticipated expiration: 2021-12-30

Abstract

The utility model discloses an electroacoustic transducer, which comprises a vibrating system and a shell for fixing the vibrating system. The vibrating system comprises a diaphragm. The edge of the diaphragm is fixedly bonded with the shell. A pressing ring is arranged on the edge of the upper side of the diaphragm at a position corresponding to the position where the diaphragm is bonded with the shell, and the pressing ring is made of plastic. The electroacoustic transducer with the structure has the advantages that the metal area in the electroacoustic transducer can be reduced, the influence on parts in a terminal product can be reduced after the electroacoustic transducer is assembled with the terminal product and the performance of the terminal product is guaranteed.

Description

Electroacoustic transducer

Technical field

The utility model relates to the electroacoustic field, is specifically related to a kind of metallic region that can reduce in the electroacoustic transducer, and electroacoustic transducer is diminished to the influence of parts in the end product, guarantees the electroacoustic transducer of end product performance.

Background technology

In the prior art, electroacoustic transducer involving vibrations system, magnetic circuit system and accommodate the shell of fixing said vibrational system and magnetic circuit system.Vibrational system comprises vibrating diaphragm and the voice coil unit that is incorporated into the vibrating diaphragm downside, and magnetic circuit system is positioned at the vibrating diaphragm downside and is provided with the magnetic gap of accommodating voice coil unit.Usually, the lower edge of vibrating diaphragm and shell secure bond, the vibrating diaphragm upper edge is fixed by the pressure ring of metal material.

But the pressure ring of this metal material has increased the metallic region of electroacoustic transducer, easily the parts such as antenna in the end products such as the mobile phone of accommodating electroacoustic transducer, notebook is exerted an influence, and influences the performance of end product.Therefore, be necessary the electroacoustic transducer of this traditional structure is improved, to avoid above-mentioned defective.

The utility model content

The utility model technical problem to be solved provides a kind of electroacoustic transducer, can reduce the metallic region in the electroacoustic transducer, and electroacoustic transducer is diminished to the influence of parts in the end product, guarantees the performance of end product.

To achieve these goals; The utility model provides a kind of electroacoustic transducer, the shell of involving vibrations system and fixing said vibrational system, and said vibrational system comprises vibrating diaphragm; The edge of said vibrating diaphragm and said shell secure bond; Wherein, said vibrating diaphragm upper edge is provided with pressure ring corresponding to the position of said vibrating diaphragm and the combination of said shell, and said pressure ring is a plastic material.

In addition, preferred scheme is that said pressure ring comprises pressure ring body and the extension that protrudes to the extension of said pressure ring body side.

In addition, preferred scheme is that the position that corresponding to said pressure ring body extension is not set on the said shell is provided with the location division of the said pressure ring body in location.

In addition, preferably scheme is, said pressure ring is a rectangular configuration, and said extension is positioned at respectively on the four edges of said pressure ring.

In addition, preferred scheme is that the bight of said shell is provided with the location division of the said pressure ring in location of protrusion setting.

In addition, preferred scheme is that said outer casing bottom is combined with arrangements of electric connection.

In addition, preferred scheme is that said arrangements of electric connection is a FPC.

In addition, preferred scheme is that said side wall of outer shell is provided with the lead-in wire groove along the voice coil unit lead-in wire.

After adopting technique scheme; Compare with traditional structure; The utility model adopts the pressure ring of this plastic material can reduce the metallic region in the electroacoustic transducer; After the assembling of electroacoustic transducer and end product, can reduce its to end product in the influence of parts, guaranteed the performance of end product.

Description of drawings

Through below in conjunction with accompanying drawing present embodiment being described, above-mentioned characteristic of the utility model and technological merit will become apparent and understand easily.

Fig. 1 is the perspective exploded view of the utility model electroacoustic transducer;

Fig. 2 is the structural representation of the utility model electroacoustic transducer pressure ring;

Fig. 3 is the perspective view of the utility model electroacoustic transducer shell;

Fig. 4 is the schematic perspective view of the utility model electroacoustic transducer;

Fig. 5 is the vertical view of the utility model electroacoustic transducer.

Embodiment

Below in conjunction with accompanying drawing and specific embodiment the utility model is done further detailed description.

Like Fig. 1 to shown in Figure 5, electroacoustic transducer involving vibrations system, magnetic circuit system, and accommodate the fixedly shell 12 of vibrational system and magnetic circuit system.Wherein vibrational system comprises vibrating diaphragm 21 and the voice coil unit 22 that is incorporated into vibrating diaphragm 21 downsides, and voice coil unit 22 comprises the voice coil loudspeaker voice coil and the fixing speech coil framework of voice coil loudspeaker voice coil.Magnetic circuit system is that two magnetic route structure comprises the external magnetic circuit 31 of both sides and the internal magnetic circuit 32 at center; External magnetic circuit 31 all comprises magnet and the washer that is incorporated into the magnet upside with internal magnetic circuit 32; Basin frame 33 is accommodated fixedly external magnetic circuit 31 and internal magnetic circuit 32, wherein also forms the magnetic gap of accommodating voice coil unit 22 between internal magnetic circuit 32 and the external magnetic circuit 31.In addition; Also be fixed with the arrangements of electric connection 13 that is electrically connected electroacoustic transducer and external electronic circuits on the shell 12; Arrangements of electric connection 13 is incorporated into the bottom of shell 12; The utility model arrangements of electric connection 13 is a FPC, and the arrangements of electric connection of employing flexible circuitry plate structure helps reducing the whole height of electroacoustic transducer.

The lower edge of vibrating diaphragm 21 and shell 12 secure bond, the upper edge of vibrating diaphragm 21 is fixing by pressure ring 11, and pressure ring 11 adopts nonconducting plastic material in the utility model.The utility model electroacoustic transducer is a rectangular configuration, and the pressure ring 11 of rectangular configuration comprises pressure ring body 111 and the extension 112 that is extended to the side protrusion by pressure ring body 111, and extension 112 is four, lays respectively on the four edges of rectangle pressure ring 11.The structure that pressure ring 11 is provided with extension 112 helps increasing the bond area of pressure ring 11 and vibrating diaphragm 21, can prevent pressure ring 11 distortion simultaneously.

Four bights of shell 12 are provided with the location division 121 of protrusion, and the position that 121 corresponding pressure rings, 11 bights, location division are not provided with the pressure ring body 111 of extension 112 is provided with, and is used to limit the position of pressure ring 11, and fixed pressure ring 11.Also be provided with the lead-in wire groove 122 that is used for along voice coil leads on the shell 12, voice coil leads is drawn out on the arrangements of electric connection 13 of shell 12 bottoms from the electroacoustic transducer front through lead-in wire groove 122.

The utility model adopts the pressure ring of this plastic material can reduce the metallic region in the electroacoustic transducer, after the assembling of electroacoustic transducer and end product, can reduce its to end product in the influence of parts, guaranteed the performance of end product.

Under the above-mentioned instruction of the utility model; Those skilled in the art can be in his improvement of the basic enterprising Xingqi of the foregoing description and distortion; And these improvement and distortion all drop in the protection range of the utility model, and those skilled in the art should be understood that; Above-mentioned specific descriptions are just better explained the purpose of the utility model, and the protection range of the utility model is limited claim and equivalent thereof.

Claims

1. electroacoustic transducer; The shell of involving vibrations system and fixing said vibrational system; Said vibrational system comprises vibrating diaphragm, and the edge of said vibrating diaphragm and said shell secure bond is characterized in that; Said vibrating diaphragm upper edge is provided with pressure ring corresponding to the position of said vibrating diaphragm and the combination of said shell, and said pressure ring is a plastic material.

2. electroacoustic transducer according to claim 1 is characterized in that, said pressure ring comprises pressure ring body and the extension that protrudes to the extension of said pressure ring body side.

3. electroacoustic transducer according to claim 2 is characterized in that, the position that corresponding to said pressure ring body extension is not set on the said shell is provided with the location division of the said pressure ring body in location.

4. electroacoustic transducer according to claim 3 is characterized in that, said pressure ring is a rectangular configuration, and said extension is positioned at respectively on the four edges of said pressure ring.

5. electroacoustic transducer according to claim 4 is characterized in that, the bight of said shell is provided with the location division of the said pressure ring in location of protrusion setting.

6. according to the described electroacoustic transducer of the arbitrary claim of claim 1 to 5, it is characterized in that said outer casing bottom is combined with arrangements of electric connection.

7. electroacoustic transducer according to claim 6 is characterized in that, said arrangements of electric connection is a FPC.

8. electroacoustic transducer according to claim 7 is characterized in that, said side wall of outer shell is provided with the lead-in wire groove along the voice coil unit lead-in wire.