CN203301722U

CN203301722U - Loudspeaker

Info

Publication number: CN203301722U
Application number: CN201320314561XU
Authority: CN
Inventors: 王建建; 许超; 陈钢; 吴永红
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2013-06-03
Filing date: 2013-06-03
Publication date: 2013-11-20
Anticipated expiration: 2023-06-03

Abstract

The utility model discloses a loudspeaker. The loudspeaker relates to the technical field of electro-acoustic products. The loudspeaker comprises a housing, a vibration system disposed inside the housing and a magnetic circuit system disposed below the housing and the vibration system. The vibration system comprises a vibrating diaphragm and a voice coil. The periphery of the vibrating diaphragm is fixed on the top of the housing. A seal ring is disposed at the position, which is corresponding to the position combined the vibrating diaphragm with the housing, of the housing. The loudspeaker overcomes a technical problem that the loudspeakers in the prior art have low acoustic performance. The loudspeaker is advantaged by being good in seal performance, high in sensitivity, pure and vigorous in sound and good in high-frequency performance, and therefore, the loudspeaker has high integral acoustic performance and good quality.

Description

Loud speaker

Technical field

The utility model relates to the electro-acoustic product technical field, particularly a kind of loud speaker.

Background technology

Fast development along with electronic technology, the picture tube TV is because its profile is heavy, definition is low, power consumption is many, to the shortcomings such as the radiation injury of human body is large being eliminated just progressively, the substitute is in recent years the LED(Light Emitting Diode that consumer extremely favors) TV and PDP(Plasma Display Panel) TV.LED TV and PDP TV with small and exquisite frivolous, definition is high famous, because their thickness is little, cause the also attenuation thereupon of its built-in loud speaker, usually the loud speaker volume reduce with its acoustical behavior, be reduced to cost, all the acoustics not as the transistor TV is good thereby make the acoustics of LED TV or PDP TV.

For the loud speaker in LED TV and PDP TV, mainly comprise shell and be contained in the vibrational system in shell at present, also comprising the magnetic circuit system that is arranged at shell and vibrational system bottom.Vibrational system comprises vibrating diaphragm and voice coil loudspeaker voice coil, and the edge part of vibrating diaphragm and the top of shell are adhesively fixed.Vibrating diaphragm can continuous up-down vibration be instigated the air sounding when speaker operation, the vibration of vibrating diaphragm is easy to cause between vibrating diaphragm and shell bonding not firm, produce gap, thereby cause speaker seal not tight, leak gas, reduce the sensitivity of loud speaker, and then reduced the acoustical behavior of loud speaker, further reduced the acoustics of LED TV and PDP TV.

The utility model content

Technical problem to be solved in the utility model is to provide a kind of loud speaker, and this speaker seal is effective, gas leak phenomenon can not occur, and then highly sensitive, and acoustical behavior is good.

For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of loud speaker, and comprise shell and be contained in the vibrational system in described shell, also comprise the magnetic circuit system that is positioned at described shell and vibrational system bottom; Described vibrational system comprises vibrating diaphragm and voice coil loudspeaker voice coil, and the edge part of described vibrating diaphragm is fixed on the top of described shell, and on described shell, corresponding described vibrating diaphragm is provided with sealing ring with the position that described shell combines.

Wherein, described sealing ring is located at the outside of described shell.

Further, described vibrational system also comprises the DOME of the middle part that is positioned at described vibrating diaphragm, and described DOME combines with described voice coil loudspeaker voice coil.

Wherein, described voice coil loudspeaker voice coil combines with described DOME by voice coil suspension, and the position that described DOME combines with described voice coil suspension is provided with the DOME reinforcing ring, and described DOME reinforcing ring is socketed on the outside of described voice coil suspension.

Further, described magnetic circuit system comprises T iron, on described T iron, is provided with successively magnet and washer, and the centre position of described T iron is provided with the centre bore that vertically runs through; Defining described centre bore is suitable for reading near an end of described vibrational system, and the other end is end opening, described suitable for reading be horn mouth.

Wherein, described end opening is also horn mouth.

After having adopted technique scheme, the beneficial effects of the utility model are: the position that on the shell due to the utility model loud speaker, corresponding vibrating diaphragm combines with shell is provided with sealing ring, sealing ring the sealing that has strengthened loud speaker is set, even vibrating diaphragm is because producing gap between Long-term Vibration and shell, the phenomenon that loud speaker also can not leak gas, improve the sensitivity of loud speaker, thereby improved the acoustical behavior of loud speaker.

Due to sealing ring, be arranged on the outside of shell, better tightness, and simple installation.

Due to DOME(ball top) position that combines with voice coil suspension is provided with the DOME reinforcing ring, and the DOME reinforcing ring has strengthened the rigidity of DOME, makes DOME be difficult for deforming, thereby is conducive to the lifting of loudspeaker high frequency performance.

Because the suitable for reading and end opening of centre bore is horn mouth, with straight mouthful of the prior art, compare, horn mouth has increased the space of centre bore end, and bell-mouthed sidewall is streamline structure, make the air duct between voice coil loudspeaker voice coil inside and the rear operatic tunes more smooth and easy, therefore more be convenient to the circulation of air between voice coil loudspeaker voice coil inside and the rear operatic tunes, the sound that makes loud speaker send is more honest.

Visible, the utility model loud speaker has solved the low technical problem of the acoustical behavior of loud speaker in the prior art.The advantages such as the utility model loud speaker has good airproof performance, and is highly sensitive, and sound is honest, and high frequency performance is good, therefore whole acoustical behavior is high, quality better.

The accompanying drawing explanation

Fig. 1 is the stereo decomposing structural representation of the utility model loud speaker;

Fig. 2 is the cross-sectional view of the utility model loud speaker;

Fig. 3 is the A section enlarged drawing of Fig. 2;

Fig. 4 is the structural representation of the T iron of the utility model loud speaker;

In figure: 1, shell, 21, vibrating diaphragm, 22, voice coil loudspeaker voice coil, 23, DOME, 24, the DOME reinforcing ring, 25, voice coil suspension, 31, washer, 32, magnet, 33, T iron, 331, centre bore, 3311, suitable for reading, 3312, end opening, 332, edge section, 333, pars intermedia, 4, sealing ring.

Embodiment

Below in conjunction with drawings and Examples, further set forth the utility model.

Shown in common with Fig. 4 as shown in Figure 1, Figure 2, a kind of loud speaker, this loud speaker is circular configuration, comprises the shell 1 of annular, in shell 1, contains vibrational system, also comprises magnetic circuit system, the bottom of shell 1 is positioned on the magnet 32 of magnetic circuit system.Vibrational system comprises vibrating diaphragm 21 and voice coil loudspeaker voice coil 22, and the middle part of vibrating diaphragm 21 is combined with DOME(ball top) 23, the edge part of vibrating diaphragm 21 is fixed on the top of shell 1; Voice coil loudspeaker voice coil 22 combines with DOME23 by voice coil suspension 25, and voice coil loudspeaker voice coil 22 is set in the outside that voice coil suspension 25 is not combined with the end of DOMR23.Magnetic circuit system comprises T iron 33, and T iron 33 comprises pars intermedia 333 cylindraceous, and an end of pars intermedia 333 is provided with Bu332， edge, the edge section 332 and the common T iron 33 that forms of pars intermedia 333 of extending to its outside, and the longitudinal profile of T iron 33 is approximately down " T " font.In edge section 332, be provided with successively the magnet 32 of annular and the washer 31 of annular, between magnet 32 and washer 31 and pars intermedia 333, be formed with magnetic gap, voice coil loudspeaker voice coil 22 is positioned at magnetic gap.The diameter of washer 31 is less than the diameter of magnet 32, and the bottom of shell 1 is wrapped up washer 31 and is positioned on magnet 32.The middle part of pars intermedia 333 is provided with the centre bore 331 that runs through, and centre bore 331 is communicated with inside and the rear operatic tunes of voice coil loudspeaker voice coil 22.

As shown in Figure 2, the position that on shell 1, corresponding vibrating diaphragm 21 combines with shell 1 is provided with sealing ring 4, sealing ring 4 is set in the outside of shell 1, sealing ring 4 the sealing that has strengthened loud speaker is set, even vibrating diaphragm 21 is because producing gap between Long-term Vibration and shell 1, the phenomenon that loud speaker also can not leak gas, improved the sensitivity of loud speaker, thereby improved the acoustical behavior of loud speaker.Sealing ring 4 is arranged on the outside of shell 1, better tightness, and simple installation.

As shown in Fig. 2 and Fig. 3 were common, the position that DOME23 combines with voice coil suspension 25 was provided with DOME reinforcing ring 24, and DOME reinforcing ring 24 is socketed on the outside of voice coil suspension 25.DOME reinforcing ring 24 has strengthened the rigidity of DOME23, makes DOME23 be difficult for deforming when speaker operation, thereby is conducive to the lifting of loudspeaker high frequency performance.

As shown in Fig. 2 and Fig. 4 were common, centre bore 331 was suitable for reading 3311 near an end of voice coil loudspeaker voice coils 22, and the other end is end opening 3312.Suitable for reading 3311 is horn mouth, and end opening 3312 is also horn mouth, and suitable for reading 3311 diameter is greater than the diameter of end opening 3312.Horn mouth has increased the space at centre bore 331 suitable for reading 3311 and end opening 3312 places, and bell-mouthed sidewall is streamline structure, make the air duct between voice coil loudspeaker voice coil 22 inside and the rear operatic tunes more smooth and easy, therefore more be convenient to the circulation of air between voice coil loudspeaker voice coil 22 inside and the rear operatic tunes, the sound that makes loud speaker send is more honest.

The assembling process of the utility model loud speaker is as follows:

S1, magnet 32 and washer 31 are fixed on T iron 33, are assembled into magnetic circuit system;

S2, voice coil loudspeaker voice coil 22 is set in to an end of voice coil suspension 25, DOME reinforcing ring 24 is socketed in to the other end of voice coil suspension 25; Vibrating diaphragm 21 is combined as a whole with DOME23, and the end and the DOME23 that voice coil suspension 25 are set with to DOME reinforcing ring 24 are combined as a whole;

S3, shell 1 is fixed on magnetic circuit system;

S4, vibrational system is installed in shell 1, the edge part of vibrating diaphragm 21 is fixed on to the top of shell 1;

S5, at vibrating diaphragm 21 and the outside, the position cover of shell 1 combination, load onto sealing ring 4, namely completed assembling of the present utility model.

The utility model is not limited to above-mentioned concrete execution mode, and those of ordinary skill in the art is from above-mentioned design, and without performing creative labour, all conversion of having done, within all dropping on protection range of the present utility model.

Claims

1. loud speaker, comprise shell and be contained in the vibrational system in described shell, also comprises the magnetic circuit system that is positioned at described shell and vibrational system bottom; Described vibrational system comprises vibrating diaphragm and voice coil loudspeaker voice coil, and the edge part of described vibrating diaphragm is fixed on the top of described shell, it is characterized in that: on described shell, corresponding described vibrating diaphragm is provided with sealing ring with the position that described shell combines.

2. loud speaker according to claim 1, it is characterized in that: described sealing ring is located at the outside of described shell.

3. loud speaker according to claim 1 and 2, it is characterized in that: described vibrational system also comprises the DOME of the middle part that is positioned at described vibrating diaphragm, described DOME combines with described voice coil loudspeaker voice coil.

4. loud speaker according to claim 3, it is characterized in that: described voice coil loudspeaker voice coil combines with described DOME by voice coil suspension, the position that described DOME combines with described voice coil suspension is provided with the DOME reinforcing ring, and described DOME reinforcing ring is socketed on the outside of described voice coil suspension.

5. loud speaker according to claim 1 and 2, it is characterized in that: described magnetic circuit system comprises T iron, on described T iron, is provided with successively magnet and washer, the centre position of described T iron is provided with the centre bore that vertically runs through; Defining described centre bore is suitable for reading near an end of described vibrational system, and the other end is end opening, described suitable for reading be horn mouth.

6. loud speaker according to claim 5 is characterized in that: described end opening also is horn mouth.