CN105848070A

CN105848070A - Loudspeaker

Info

Publication number: CN105848070A
Application number: CN201610330558.5A
Authority: CN
Inventors: 焦其金; 贡玉昌; 李志�
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2016-05-18
Filing date: 2016-05-18
Publication date: 2016-08-10

Abstract

The invention discloses a loudspeaker and relates to the technical field of electro acoustic products. The loudspeaker comprises a casing. A vibration system and a magnetic circuit system are accommodated in the casing. The vibration system comprises a voice coil and a folding ring adhered to the skeleton periphery of the voice coil. The skeleton comprises first and second skeletons combined together. Flanges bent outward are arranged at the joint of first and second skeletons. Two flanges are combined together. The folding ring is bonded on a place above the flanges and is in lap joint with the flanges. The loudspeaker provided by the invention solves the technical problems of poor folding ring bonding consistency, poor acoustic performance and the like of a loudspeaker in the prior art, and has the advantages of good consistency, high acoustic performance, good sound quality, high production efficiency, high reliability and long service life.

Description

Speaker

Technical field

The present invention relates to electro-acoustic product technical field, particularly to a kind of speaker.

Background technology

Speaker is commonly called as loudspeaker, the conversion being used between the signal of telecommunication and acoustical signal, is a kind of energy conversion device. Speaker generally includes shell, contains vibrational system and magnetic circuit system in shell, and magnetic circuit system includes U/T ferrum, Magnet and China Department, vibrational system includes ring, voice coil loudspeaker voice coil and the DOME (top dome, dust cap) combined, and the end of voice coil loudspeaker voice coil is positioned at magnetic gap In.Voice coil loudspeaker voice coil includes speech coil framework and is wrapped in the coil of speech coil framework end, and ring is fixed on the other end of speech coil framework, coil Move up and down in magnetic gap after energising, drive ring motion radiation sound by speech coil framework.Owing to ring is the softest, with It is difficult to ensure that bonding fastness when speech coil framework is bonding, between inner side and the speech coil framework of ring, gap easily occurs, thus produce Raw leakage glue, bonding quality is poor, and the bonding location of ring also is difficult to ensure accurately simultaneously, easy to stick partially, greatly, product is consistent for bonding difficulty Property is poor, and the performance of speaker also can be produced impact.

Summary of the invention

For disadvantages described above, the technical problem to be solved is to provide a kind of speaker, this speaker ring with Speech coil framework adhering state is good, and bonding difficulty is low, will not occur to leak glue, and good product consistency, acoustical behavior is good.

For solving above-mentioned technical problem, the technical scheme is that

A kind of speaker, including shell, contains vibrational system and magnetic circuit system, described vibrational system bag in described shell Including voice coil loudspeaker voice coil and be bonded in the ring of skeleton periphery of described voice coil loudspeaker voice coil, described skeleton includes the first skeleton and second combined Skeleton, described first skeleton and the described second skeleton place of combining are equipped with the flange of outwards bending, and described in two, flange is combined in Together；Described ring is bonded in the top of described flange and is overlapped on described flange.

Wherein, the axial dimension of described first skeleton is less than the axial dimension of described second skeleton, and described ring is bonded in On described first skeleton, described coil is wound on described second skeleton.

Wherein, the plane at described flange place and described skeleton is axially vertical.

Wherein, the diameter of described first skeleton is identical with the diameter of described second skeleton.

Wherein, described magnetic circuit system includes magnetic conductive part and the Magnet being sequentially fixed on described magnetic conductive part and washer.

As a kind of embodiment, described magnetic conductive part is U ferrum, and the sidewall of described U ferrum is fixed on the inwall of described shell On.

As another embodiment, described magnetic conductive part is T ferrum, and described washer is fixed on the inwall of described shell.

Wherein, the inwall of described shell is provided with the positioning boss of protrusion, described U ferrum or the upper surface of described washer and institute The lower surface stating positioning boss fixes.

After have employed technique scheme, the invention has the beneficial effects as follows:

Owing to the vibrational system of speaker of the present invention includes on voice coil loudspeaker voice coil, the ring being bonded in the skeleton periphery of voice coil loudspeaker voice coil and skeleton The DOME of side, skeleton includes that the first skeleton and the second skeleton combined, the first skeleton and the second skeleton place of combining are equal Being provided with the flange of outwards bending, two flange combine；Ring is bonded in the top of flange and is overlapped on flange.Skeleton by Two parts are combined into so that the processing of flange is simpler, and flange serves position-limiting action to the bonding location of ring, it is possible to Ensureing the concordance of ring bonding location, bonding difficulty is low, and production efficiency is high, and flange is also the most bonding to ring and skeleton Glue serves the effect of stop, is effectively prevented leakage glue, and glue is distributed evenly, and bonding fastness is bigger, will not Affecting the acoustical behavior of speaker because of glue skewness, acoustical behavior improves.First skeleton is also effectively increased simultaneously The oscillation space that DOME is downward, it is possible to effectively avoid DOME to collide with magnetic circuit system because downward oscillation space is not enough, Thus producing the bad of abnormal sound, sound quality is greatly improved.

Owing to the inwall of shell is provided with the positioning boss of protrusion, the upper surface of U ferrum or washer and the following table of positioning boss Face fixes, and positioning boss is serving positioning action, improve product conforming also add simultaneously magnetic circuit system with Contact area between shell, thus improve the degree of being firmly combined with between magnetic circuit system and shell, effectively reduce magnetic circuit The risk that system comes off from shell, improves reliability and the service life of product.

In sum, speaker of the present invention solves that the concordance that in prior art, speaker ring is bonding is poor, acoustics The technical problems such as energy difference, speaker product concordance of the present invention is good, and acoustical behavior is high, and sound quality is good；Production efficiency is high, reliably Property high, service life is long.

Accompanying drawing explanation

Fig. 1 is the decomposition texture schematic diagram of loudspeaker embodiment one of the present invention；

Fig. 2 is the sectional structure schematic diagram of loudspeaker embodiment one of the present invention；

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

Fig. 4 is the structural representation of voice coil loudspeaker voice coil in Fig. 1；

In figure: 10, shell, 12, positioning boss, 20, vibrational system, 22, DOME, 24, ring, 26, voice coil loudspeaker voice coil, 260, line Circle, the 262, second skeleton, the 2620, second flange, the 264, first skeleton, the 2640, first flange, 266, voice coil leads, 268, fixed Position ring, 30, magnetic circuit system, 32, washer, 34, Magnet, 36, U ferrum, 40, electrical connector.

Detailed description of the invention

Below in conjunction with the accompanying drawings and embodiment, the present invention is expanded on further.

The inner side related in this specification refers to the side near Microspeaker center, and outside refers to miniature raising The side at Sheng Qi center；Refer to be provided with the direction of vibrational system in the orientation related in this specification, refer under orientation be provided with magnetic circuit The direction of system.

Embodiment one:

As Fig. 1 and Fig. 2 jointly shown in, a kind of speaker, including ring-type shell 10, in shell 10, contain vibrational system 20 and magnetic circuit system 30.

As Fig. 1 and Fig. 2 jointly shown in, vibrational system 20 includes that voice coil loudspeaker voice coil 26, voice coil loudspeaker voice coil 26 include the skeleton of tubular and be wrapped in Skeleton is near the coil 260 of magnetic circuit system 30 one end.Vibrational system 20 also includes that inward flange is bonded in the ring 24 of skeleton periphery, The outward flange of ring 24 is fixed on the upper surface of shell 10, and ring 24 is positioned at the top of coil 260.Vibrational system 20 also includes DOME22, DOME22 cover in the upper end of skeleton, and the edge part of DOME22 is fixed on skeleton.

Jointly shown with Fig. 4 as shown in Figure 1, Figure 2, skeleton includes the first skeleton 264 and the second skeleton combined between the higher and lower levels together 262, the first skeleton 264 is identical with the diameter of the second skeleton 262, and the axial dimension of the first skeleton 264 is less than the second skeleton 262 Axial dimension, the height of the i.e. first skeleton 264 is less than the height of the second skeleton 262.First skeleton 264 is above, DOME22 Being fixed on the upper end of the first skeleton 264, ring 24 is fixed on the periphery of the first skeleton 264, and the second skeleton 262 is positioned at lower section, Coil 260 is wound on the lower end of the second skeleton 262.

As Fig. 1 and Fig. 3 jointly shown in, the end that the first skeleton 264 combines with the second skeleton 262 is provided with outwards bending First flange 2640, the end that the second skeleton 262 combines with the first skeleton 264 is provided with the second flange 2620 of outwards bending, First flange 2640 combines with the second flange 2620, thus the first skeleton 264 and the second skeleton 262 are combined in one Rise.First flange 2640 and the second flange 2620 are collectively forming a circle and protrude from the locating ring 268 of skeleton outer wall, the first flange 2640 and second plane all axially vertical with skeleton at flange 2620 place, i.e. locating ring 268 and skeleton axially vertical.Folding Ring 24 is bonded on the first skeleton 264 above the first flange 2640, i.e. ring 24 is bonded in the top of locating ring 268 and overlaps On locating ring 268, this locating ring 268 (i.e. first flange 2640 and the second flange 2620) serves fixed when ring 24 is bonding Position and the effect of gear glue.

As Fig. 1 and Fig. 2 jointly shown in, magnetic circuit system includes magnetic conductive part, and in present embodiment, magnetic conductive part is U ferrum 36. Magnetic circuit system also includes the Magnet 34 being fixed in U ferrum 36 and the washer 32 being fixed on Magnet 34.Magnet 34 and washer 32 and U Being provided with magnetic gap between the sidewall of ferrum 36, the coil 260 of voice coil loudspeaker voice coil 26 is positioned at magnetic gap.The sidewall of U ferrum 36 is fixed on shell 10 Inwall on, the inwall of shell 10 is provided with the positioning boss 12 of protrusion, and positioning boss 12 is positioned at the top of U ferrum 36, U ferrum 36 side The upper surface of wall fixes with the lower surface of positioning boss 12.

As Fig. 1 and Fig. 2 jointly shown in, shell 10 is fixed with two electrical connectors 40, one end of two electrical connectors 40 Electrically connect with two voice coil leads 266 of voice coil loudspeaker voice coil 26 respectively, the other end of two electrical connectors 40 respectively with speaker external electrical Road electrically connects, and the tone currents in external circuit is passed through coil 260, and voice coil loudspeaker voice coil 26 is believed according to the audio frequency of the alternation of flowing through coil 260 Number doing reciprocal up and down motion in magnetic gap, ring 24 and DOME22, along with the motion up-down vibration of voice coil loudspeaker voice coil 26, instigates air Sounding, thus complete the energy conversion between electroacoustic.

Embodiment two:

Present embodiment is essentially identical with embodiment one, and its difference is:

Magnetic conductive part is T ferrum, and the edge part of T ferrum is fixed with annular Magnet and washer, Magnet and washer and T ferrum successively Magnetic gap it is provided with between newel.Washer is fixed on the inwall of shell, and the upper surface of washer is solid with the lower surface of positioning boss Fixed combination.

The skeleton of speaker of the present invention is combined into by two parts skeleton of upper and lower superposition, and wherein two parts skeleton combines Position be equipped with the flange of outwards bending, serve location and barrier effect when ring is bonding, thus effectively raise The concordance of speaker, also prevent the impact produced nonlinear loudspeaker because of leakage glue, improves the acoustics of speaker Energy.

The above embodiment of the present invention is only that the skeleton to voice coil loudspeaker voice coil of the present invention is combined into by two parts skeleton of upper and lower superposition, The position that wherein two parts skeleton combines is equipped with the illustration of the outwards technical scheme of the flange of bending, wherein speaker Structure be not limited in said structure, technical scheme is applicable to any one and is provided with the speaker of skeleton voice coil loudspeaker voice coil In, those skilled in the art need not pay any creative work according to the description of above-described embodiment just can be by the skill of the present invention Art scheme is applied in the speaker of other structure, therefore no matter other structure of speaker is the most same as the previously described embodiments, only If the skeleton of voice coil loudspeaker voice coil is combined into by two parts skeleton of upper and lower superposition, the position that wherein two parts skeleton combines is equipped with Outwards the flange of bending each falls within protection scope of the present invention in order to the product improving speaker concordance and acoustical behavior etc..

The first skeleton related in this specification and the name of the second skeleton are merely to distinguishing feature, not generation Table position relationship therebetween and assembling sequence.

The present invention is not limited to above-mentioned specific embodiment, those of ordinary skill in the art from above-mentioned design, Without performing creative labour, all conversion made, within all falling within protection scope of the present invention.

Claims

1. speaker, including shell, contains vibrational system and magnetic circuit system in described shell, described vibrational system includes voice coil loudspeaker voice coil And it being bonded in the ring of the skeleton periphery of described voice coil loudspeaker voice coil, it is characterised in that described skeleton includes the first skeleton combined With the flange that the second skeleton, described first skeleton and the described second skeleton place of combining are equipped with outwards bending, flange described in two Combine；Described ring is bonded in the top of described flange and is overlapped on described flange.

Speaker the most according to claim 1, it is characterised in that the axial dimension of described first skeleton is less than described second The axial dimension of skeleton, described ring is bonded on described first skeleton, and described coil is wound on described second skeleton.

Speaker the most according to claim 2, it is characterised in that the plane at described flange place is axial with described skeleton Vertically.

Speaker the most according to claim 3, it is characterised in that the diameter of described first skeleton and described second skeleton Diameter is identical.

Speaker the most according to claim 4, it is characterised in that described magnetic circuit system includes magnetic conductive part and fixes successively Magnet on described magnetic conductive part and washer.

Speaker the most according to claim 5, it is characterised in that described magnetic conductive part is U ferrum, the sidewall of described U ferrum is solid It is scheduled on the inwall of described shell.

Speaker the most according to claim 5, it is characterised in that described magnetic conductive part is T ferrum, described washer is fixed on institute State on the inwall of shell.

8. according to the speaker described in claim 6 or 7, it is characterised in that the inwall of described shell is provided with the location of protrusion Boss, the upper surface of described U ferrum or described washer fixes with the lower surface of described positioning boss.