CN202551337U

CN202551337U - Electroacoustic transducer

Info

Publication number: CN202551337U
Application number: CN2012201882053U
Authority: CN
Inventors: 赵国栋; 江超
Original assignee: Goertek Inc
Priority date: 2012-04-28
Filing date: 2012-04-28
Publication date: 2012-11-21
Anticipated expiration: 2022-04-28

Abstract

The utility model provides an electroacoustic transducer, which comprises a vibration system, a magnetic circuit system and a shell, wherein the shell is used for accommodating and fixing the vibration system and the magnetic circuit system; and the vibration system comprises a vibrating diaphragm and a voice coil combined to the lower side of the vibrating diaphragm. The electroacoustic transducer is characterized in that the vibrating diaphragm comprises a sphere top in the center and a ring folding part on the edge; the ring folding part has a downwardly-concave structure; the voice coil comprises a lead; and the lead is a fair line along the upper side face of the ring folding part. Due to the adoption of the structure, the height of the electroacoustic transducer is lowered, and the defects of wire break of the lead of the voice coil and the like are overcome.

Description

Electroacoustic transducer

Technical field

The utility model relates to the electroacoustic field, is specifically related to a kind of electroacoustic transducer that can reduce height.

Background technology

Now, portable electron device is slimming day by day, as the also slimming day by day of electroacoustic transducer of important acoustic element.Electroacoustic transducer of the prior art comprises vibrating diaphragm and the voice coil loudspeaker voice coil that is incorporated into said vibrating diaphragm downside.The edge of vibrating diaphragm comprises ring portion, and ring portion is the structure that raises up usually, and the lead-in wire of voice coil loudspeaker voice coil is positioned at the vibrating diaphragm downside, and this ring structure and voice coil loudspeaker voice coil all are unfavorable for reducing the height of product along the position of line.And in the electroacoustic transducer course of work, voice coil leads can be followed the voice coil loudspeaker voice coil up-down vibration, and to be easy to generate broken string etc. bad.Therefore, be necessary the electroacoustic transducer of said structure is improved, to avoid above-mentioned defective.

The utility model content

In order to solve the problems of the technologies described above, the utility model provides a kind of electroacoustic transducer, can reduce the height of electroacoustic transducer, and the generation broken string that prevents to go between etc. are bad.

To achieve these goals, the utility model provides a kind of electroacoustic transducer, involving vibrations system, magnetic circuit system, and the housing of accommodating fixing said vibrational system and said magnetic circuit system; Said vibrational system comprises vibrating diaphragm and is incorporated into the voice coil loudspeaker voice coil of said vibrating diaphragm downside, it is characterized in that said vibrating diaphragm comprises the ring portion at the ball top and the edge at center, and said ring portion is recessed structure; Said voice coil loudspeaker voice coil comprises lead-in wire, and the upper side of said lead-in wire edge said ring portion is along line.

In addition, preferred scheme is, said ball top is an independent structures with said ring portion, the marginal position outlet at said ball top, said lead-in wire edge.

In addition, preferably scheme is, said electroacoustic transducer also comprises pressure ring, and the downside of said vibrating diaphragm combines with said housing, and the upper side of said vibrating diaphragm combines with said pressure ring.

In addition, preferred scheme is that said pressure ring is a plastic material.

In addition, preferred scheme is that said pressure ring upside is combined with the protecgulum of metal material.

In addition, preferably scheme is, said electroacoustic transducer also comprises electrical connector, and the internal pads of said electrical connector is positioned at the upper side of said housing, and said lead-in wire is electrically connected with said internal pads.

In addition, preferred scheme is that said electrical connector combines with said housing injection moulding.

In addition, preferably scheme is, said vibrating diaphragm is a rectangle, and two major axis sides of two said lead-in wire edge said ring portions are along line, and said internal pads is provided with corresponding to the end of said lead-in wire.

In addition, preferably scheme is, said magnetic circuit system is single magnetic structure, and said magnetic circuit system forms the magnetic gap of accommodating said voice coil loudspeaker voice coil.

In addition, preferred scheme is that said magnetic circuit system is two magnetic route structure or external magnetic circuit structure.

After adopting technique scheme; Compare with traditional structure, the ring portion of the utility model vibrating diaphragm is recessed structure, and the lead-in wire of voice coil loudspeaker voice coil is along the suitable line of the upside of ring portion; Thereby reduced the height of electroacoustic transducer, it is bad that broken string etc. takes place the lead-in wire that has prevented voice coil loudspeaker voice coil.

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 three-dimensional decomposition texture sketch map of the utility model electroacoustic transducer.

Fig. 2 is the perspective view of the utility model electroacoustic transducer.

Fig. 3 is the A-A cross-sectional view of electroacoustic transducer shown in Figure 2.

Fig. 4 is the perspective view of the utility model electroacoustic transducer vibrational system.

Fig. 5 is the utility model electroacoustic transducer vibrational system and magnetic circuit system and perspective view after housing combines.

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 3, electroacoustic transducer involving vibrations system, magnetic circuit system, and accommodate the fixedly housing 13 of vibrational system and magnetic circuit system.Vibrational system comprises vibrating diaphragm and the voice coil loudspeaker voice coil 23 that is incorporated into vibrating diaphragm downside center; Vibrating diaphragm comprises the ring portion 22 at the ball top 21 and the edge at center; Wherein ring portion 22 is the structure to the downside depression, and is as shown in figures 1 and 3, and present embodiment ball top 21 is two independent structures with ring portion 22.Voice coil loudspeaker voice coil 23 is provided with two lead-in wires 231, and lead-in wire 231 is electrically connected with the end product circuit, through sense of current in two 231 may command voice coil loudspeaker voice coils 23 that go between, thereby makes end product can control the operating state of electroacoustic transducer.

The present embodiment magnetic circuit system is the internal magnetic circuit structure, comprises the washer 31, magnet 32 and the basin frame 33 that combine successively from top to bottom, and magnetic circuit system forms the magnetic gap of accommodating voice coil loudspeaker voice coil 23, and is as shown in Figure 3.

The downside of vibrating diaphragm combines with the upper side of housing 12, and the upper side of vibrating diaphragm also is combined with pressure ring 12, is combined with the protecgulum 11 of metal material on the present embodiment pressure ring 12, protecgulum 11, pressure ring 12 and the housing 13 common peripheral frame that form electroacoustic transducer.

In addition, also comprise electrical connector 4, electrical connector 4 is electrically connected the internal circuit and the external circuit of electroacoustic transducer, combines through the injection moulding mode with housing 12, comprises the internal pads 41. that is electrically connected with the lead-in wire 231 of voice coil loudspeaker voice coil 23

Like Fig. 4 and shown in Figure 5, the utility model lead-in wire 231 is along the suitable line of the upper side of ring portion 22.In the assembling process, at first ball top 21 is combined with voice coil loudspeaker voice coil 23, then ball top 21 is combined as a whole through modes such as bondings with ring portion 22; In ball top 21 and ring portion 22 cohesive process, need go between 231 along the edge at ball top 21 the suitable upside that goes out to ring portion 22.

Vibrating diaphragm is a rectangular configuration in the present embodiment; Ball top 21 is rectangle with ring portion 22; Article two, lead-in wire 231 is drawn from two bights at ball top 21; Then along two major axis sides of ring portion 22 along line, the position of this outlet and can increase the thread of lead-in wire 231 along the direction of line prevents that make progress lead-in wire 231 in the vibration processes of vibrating diaphragm from hindering the vibration of vibrating diaphragms and influencing the acoustical behavior of electroacoustic transducer.

Electrical connector 4 is with after housing 12 injection mouldings combine, and internal pads 41 is exposed to the upper side of housing 12, and is positioned at the end of lead-in wire 231, and is as shown in Figure 5.Lead-in wire 231 is electrically connected through modes such as spot welding with internal pads 41 along the position that extends to internal pads 41 places behind the lines along ring portion 22 then.

Because pressure ring 12 is crimped on the vibrating diaphragm upside and directly contacts with lead-in wire 231 or internal pads 41, in order to prevent since pressure ring 12 conductions to cause short circuit etc. bad, present embodiment pressure ring 12 employing non-conducting materials preferably adopt common plastic material.

The ring portion 22 of this vibrating diaphragm adopts recessed structure, and what ring portion 22 can be not extra in the vibration processes because vibrating diaphragm makes progress takies highly, therefore helps reducing the height of electroacoustic transducer; This at the vibrating diaphragm upside along lead-in wire 231 structure because lead-in wire 231 is arranged at a side of ring portion 22 depressions, so vibrating diaphragm can not hinder the vibration of vibrating diaphragm with lead-in wire in the process of voice coil loudspeaker voice coil 22 vibrations, and can prevent that broken string etc. is bad.

The present embodiment magnetic circuit system is the internal magnetic circuit structure, but is not limited to this structure, also can adopt external magnetic circuit or two magnetic route structure, does not all influence the enforcement of the utility model, all in the protection range of the utility model.Because those of ordinary skills are easy to realize the replacing of this magnetic structure, this no longer tired stating.

Under the above-mentioned instruction of the utility model; Those skilled in the art can for example can remove metal bezel etc. 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; It will be understood by those skilled in the art that the just better purpose of explaining the utility model of above-mentioned specific descriptions, the protection range of the utility model is limited claim and equivalent thereof.

Claims

1. electroacoustic transducer, involving vibrations system, magnetic circuit system, and the housing of accommodating fixing said vibrational system and said magnetic circuit system; Said vibrational system comprises vibrating diaphragm and is incorporated into the voice coil loudspeaker voice coil of said vibrating diaphragm downside, it is characterized in that said vibrating diaphragm comprises the ring portion at the ball top and the edge at center, and said ring portion is recessed structure; Said voice coil loudspeaker voice coil comprises lead-in wire, and the upper side of said lead-in wire edge said ring portion is along line.

2. electroacoustic transducer according to claim 1 is characterized in that, said ball top and said ring portion are independent structures, and said lead-in wire is along the marginal position outlet at said ball top.

3. electroacoustic transducer according to claim 2 is characterized in that said electroacoustic transducer also comprises pressure ring, and the downside of said vibrating diaphragm combines with said housing, and the upper side of said vibrating diaphragm combines with said pressure ring.

4. electroacoustic transducer according to claim 3 is characterized in that, said pressure ring is a plastic material.

5. electroacoustic transducer according to claim 3 is characterized in that said pressure ring upside is combined with the protecgulum of metal material.

6. electroacoustic transducer according to claim 3 is characterized in that said electroacoustic transducer also comprises electrical connector, and the internal pads of said electrical connector is positioned at the upper side of said housing, and said lead-in wire is electrically connected with said internal pads.

7. electroacoustic transducer according to claim 6 is characterized in that, said electrical connector combines with said housing injection moulding.

8. electroacoustic transducer according to claim 6 is characterized in that, said vibrating diaphragm is a rectangle, and two major axis sides of two said lead-in wire edge said ring portions are along line, and said internal pads is provided with corresponding to the end of said lead-in wire.

9. according to the described electroacoustic transducer of the arbitrary claim of claim 1 to 8, it is characterized in that said magnetic circuit system is single magnetic structure, said magnetic circuit system forms the magnetic gap of accommodating said voice coil loudspeaker voice coil.

10. according to the described electroacoustic transducer of the arbitrary claim of claim 1 to 8, it is characterized in that said magnetic circuit system is two magnetic route structure or external magnetic circuit structure.