CN202535531U

CN202535531U - Micro speaker

Info

Publication number: CN202535531U
Application number: CN2012201359164U
Authority: CN
Inventors: 李运海; 宁尚磊; 刘光磊
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2012-03-31
Filing date: 2012-03-31
Publication date: 2012-11-14
Anticipated expiration: 2022-03-31

Abstract

The utility model discloses a micro speaker, comprising a vibration system, a magnetic circuit system, a housing and an electric connection member, wherein the vibration system comprises a vibration film and a voice coil combined under the vibration film. A magnetic gap is used for taking in the voice coil and formed under the vibration film and formed in the magnetic circuit system. The vibration system and the magnetic circuit system are fixed and taken in the housing and the vibration film is combined with an upper side surface of the housing. A cover body is combined with an upper side of the vibration film. A front sound cavity is formed between the cover body and the vibration film. The cover body is integrated with a sound guiding tube communicating the front sound cavity with the external space. The electric connection member comprises a deformation portion electrically consist with an external circuit. The deformation portion is an upswept structure and located on the same side of the sound guiding tube. The structure raises suitability of the micro speaker and terminal products and the sound effect of assembled micro speaker and terminal products.

Description

Microspeaker

Technical field

The utility model relates to the electroacoustic field, is specifically related to a kind of Microspeaker.

Background technology

Microspeaker involving vibrations system, magnetic circuit system, and accommodate the fixedly housing of vibrational system and magnetic circuit system.Vibrational system comprises vibrating diaphragm and the voice coil loudspeaker voice coil that is incorporated into the vibrating diaphragm downside, and magnetic circuit system is positioned at the vibrating diaphragm downside and forms the magnetic gap of accommodating voice coil loudspeaker voice coil.Voice coil loudspeaker voice coil is with after the signal of telecommunication is communicated with, and the effect up-down vibration that in the magnetic gap that magnetic circuit system forms, receives Ampere force further drives the vibrating diaphragm vibration and produces sound.

When end product such as Microspeaker and mobile phone assembled in the prior art, vibrating diaphragm was arranged at over against the position in end product sound hole usually, and the sound that vibrating diaphragm produces directly is transferred to the external world through the sound hole.But for optimal design such as the slimming that takes into account end product, microminiaturizations; Microspeaker can be arranged at away from the sound hole site in some cases; In this case, the sound that produces owing to vibrating diaphragm can influence the audio of the sound that sends from end product sound hole in the end product diffusion inside.Therefore, be necessary the Microspeaker of said structure is improved, to avoid above-mentioned defective.

The utility model content

The utility model technical problem to be solved provides a kind of Microspeaker, can increase the suitability of Microspeaker and end product, improves the audio after Microspeaker and end product assemble.

To achieve these goals, the utility model provides a kind of Microspeaker, involving vibrations system, magnetic circuit system, housing, and electrical connector; Said vibrational system comprises vibrating diaphragm and the voice coil loudspeaker voice coil that is incorporated into said vibrating diaphragm downside, and said magnetic circuit system is positioned at said vibrating diaphragm downside and forms the magnetic gap of accommodating said voice coil loudspeaker voice coil; Said housing is accommodated fixing said vibrational system and said magnetic circuit system; And said vibrating diaphragm is incorporated into the upper side of said housing; Wherein, The upside of said vibrating diaphragm is combined with lid, and the operatic tunes before forming between said lid and the said vibrating diaphragm is formed with the phonocatheter that is communicated with the said preceding operatic tunes and space outerpace on the said lid; Said electrical connector comprises the deformations that is electrically connected with external circuit, and said deformations is that the structure that is bent upwards is positioned at an identical side with said phonocatheter.

In addition, preferred scheme is that the top that said phonocatheter is positioned at said lid is a hollow tubular structure, and extends to the direction away from said vibrating diaphragm.

In addition, preferably scheme is, said electrical connector is the flexure strip structure, and the top of said deformations is provided with the contact site that contacts with external circuit, and said contact site is higher than the plane at said lid top.

In addition, preferred scheme is that the side of said housing is provided with the installation portion that said electrical connector is installed.

After adopting technique scheme; Compare with traditional structure; The utility model is provided with the preceding operatic tunes of connection vibrating diaphragm front side and the phonocatheter of space outerpace on lid; Improve the flexibility of Microspeaker rigging position in end product, improved the suitability of Microspeaker and end product, improved the audio after Microspeaker and end product assemble.

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 Microspeaker.

Fig. 2 is the perspective view of the utility model Microspeaker electrical connector.

Fig. 3 is the perspective view one of the utility model Microspeaker.

Fig. 4 is the A-A cutaway view of Microspeaker shown in Figure 3.

Fig. 5 is the perspective view two of the utility model Microspeaker.

Fig. 6 is the side structure sketch map of the utility model Microspeaker.

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 6, Microspeaker involving vibrations system, magnetic circuit system, and accommodate the fixedly housing 12 of vibrational system and magnetic circuit system.Vibrational system comprises vibrating diaphragm and the voice coil loudspeaker voice coil 23 that is incorporated into the vibrating diaphragm downside, and vibrating diaphragm comprises vibrating diaphragm body 22 and the ball top 21 that is incorporated into vibrating diaphragm body 22 centers.Housing 12 is accommodated fixedly magnetic circuit system, and magnetic circuit system forms the magnetic gap of accommodating voice coil loudspeaker voice coil 23, and the edge of vibrating diaphragm body 22 is incorporated into the upper side of housing 12.

In addition, also comprise lid 11, lid 11 is positioned at the upside of housing 12, is incorporated into the upper edge of vibrating diaphragm body 22, wherein lid 11 and the housing 12 common peripheral frame that form Microspeaker.Space between lid 11 and the vibrating diaphragm forms the preceding operatic tunes 5 of Microspeaker; As shown in Figure 3; Marginal position at lid 11 tops is provided with and lid 11 integrated phonocatheters 111; The operatic tunes 5 was a hollow tubular structure with the space outerpace of Microspeaker before phonocatheter 111 was communicated with, and the sound that Microspeaker is sent can be transferred to space outerpace through phonocatheter 111.Present embodiment phonocatheter 111 is provided with along the position perpendicular to lid 11 tops, helps the transmission of sound.

In addition, the utility model also is provided with the electrical connector 4 of flexure strip structure, and electrical connector 4 and phonocatheter 111 are positioned at the same side of vibrating diaphragm, comprise deformations 41 that is electrically connected with external circuit and the internal pads 42 that is electrically connected with the lead-in wire of voice coil loudspeaker voice coil 22, and be as shown in Figure 2.Wherein, the both sides of housing 12 are provided with the installation portion 121 that electrical connector 4 is installed, and the deformations 41 of electrical connector 4 is positioned at the upside of housing 12, and the structure of deformations 41 for being bent upwards deformation can vertically take place be electrically connected with external circuit.In addition; The top of deformations 41 is provided with contact site 411; The position of contact sites 411 was higher than the plane at lid 11 tops after electrical connector 4 assembled with housing 12, and like Fig. 4 and shown in Figure 6, contact site 411 can directly contact with the arrangements of electric connection of end product to be realized being electrically connected.

The Microspeaker of this structure; When assembling with end product; Owing to be communicated with between the preceding operatic tunes 5 that phonocatheter 111 makes the vibrating diaphragm front side and the space outerpace; Thereby improved Microspeaker installation flexibility in end product, improved the suitability of Microspeaker and end product assembling, and improved the audio after Microspeaker and the end product assembling.

Simultaneously, the deformations 41 and the phonocatheter 111 of this electrical connector 4 is arranged at the structure of vibrating diaphragm homonymy, and the arrangements of electric connection of end product can be electrically connected with Microspeaker in a side of phonocatheter 111, helps realizing the slimming 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. Microspeaker, involving vibrations system, magnetic circuit system, housing, and electrical connector; Said vibrational system comprises vibrating diaphragm and the voice coil loudspeaker voice coil that is incorporated into said vibrating diaphragm downside, and said magnetic circuit system is positioned at said vibrating diaphragm downside and forms the magnetic gap of accommodating said voice coil loudspeaker voice coil; Said housing is accommodated fixing said vibrational system and said magnetic circuit system; And said vibrating diaphragm is incorporated into the upper side of said housing; It is characterized in that; The upside of said vibrating diaphragm is combined with lid, and the operatic tunes before forming between said lid and the said vibrating diaphragm is formed with the phonocatheter that is communicated with the said preceding operatic tunes and space outerpace on the said lid; Said electrical connector comprises the deformations that is electrically connected with external circuit, and said deformations is that the structure that is bent upwards is positioned at an identical side with said phonocatheter.

2. Microspeaker according to claim 1 is characterized in that, the top that said phonocatheter is positioned at said lid is a hollow tubular structure, and extends to the direction away from said vibrating diaphragm.

3. Microspeaker according to claim 2 is characterized in that, said electrical connector is the flexure strip structure, and the top of said deformations is provided with the contact site that contacts with external circuit, and said contact site is higher than the plane at said lid top.

4. Microspeaker according to claim 3 is characterized in that, the side of said housing is provided with the installation portion that said electrical connector is installed.