CN209526876U - A kind of loudspeaker - Google Patents

A kind of loudspeaker Download PDF

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Publication number
CN209526876U
CN209526876U CN201822278314.4U CN201822278314U CN209526876U CN 209526876 U CN209526876 U CN 209526876U CN 201822278314 U CN201822278314 U CN 201822278314U CN 209526876 U CN209526876 U CN 209526876U
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China
Prior art keywords
voice coil
skeleton
circuit board
flexible circuit
magnetic
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Active
Application number
CN201822278314.4U
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Chinese (zh)
Inventor
令狐荣林
张龙
董献杰
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AAC Technologies Pte Ltd
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AAC Technologies Pte Ltd
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Abstract

A kind of loudspeaker, including frame and it is fixed on the magnetic circuit system and vibrational system of the frame, the magnetic circuit system includes magnetic bowl and the magnet steel and pole piece that are fixed in the magnetic bowl, magnetic gap is equipped in the magnetic circuit system, the vibrational system include vibrating diaphragm, voice coil, flexible circuit board and with the integrally formed skeleton of the vibrating diaphragm, the skeleton is inserted in the magnetic gap, and the voice coil is fixed on the skeleton.By setting and the integrally formed skeleton of vibrating diaphragm, the integral strength of vibrational system can be enhanced, reduce the weight of vibrational system, improve the high frequency characteristics of loudspeaker.

Description

A kind of loudspeaker
[technical field]
The utility model relates to electroacoustic conversion field more particularly to a kind of loudspeakers.
[background technique]
With the arrival of mobile internet era, the quantity of Intelligent mobile equipment constantly rises.And in numerous mobile devices Among, mobile phone is undoubtedly the most common mobile terminal device.Currently, cell-phone function is varied, one of them is high-quality Music function, and the loudspeaker in mobile phone be realize this high-quality function one of necessary condition.
The loudspeaker of the prior art all includes the magnetic circuit system being made of magnetic bowl and magnet and by voice coil, flexible circuit board With the vibrational system of vibrating diaphragm composition, between upper clamp plate and magnetic bowl, voice coil is located at by upper clamp plate and magnet steel structure flexible circuit board At magnetic gap in, one end is fixedly attached to vibrating diaphragm, and the other end is fixedly connected with flexible circuit board, when voice coil be entered alternation electricity When stream, voice coil will receive an alternation motive force and generate alternate motion, and vibrating diaphragm is driven to vibrate together with flexible circuit board.So And the integral strength of existing speaker vibration system is on the weak side, to influence the high frequency characteristics of loudspeaker sounding.
It is therefore desirable to study the novel loudspeaker of one kind to solve the above problems.
[utility model content]
The utility model is on the weak side to influence loudspeaker quality solving the problems, such as speaker vibration system intensity, and mentions For a kind of novel loudspeaker.
To achieve the above object, the utility model provides a kind of loudspeaker, including frame and is fixed on the frame Magnetic circuit system and vibrational system, the magnetic circuit system includes magnetic bowl and the magnet steel and pole piece that are fixed in the magnetic bowl, described Be equipped with magnetic gap in magnetic circuit system, the vibrational system include vibrating diaphragm, voice coil, flexible circuit board and with vibrating diaphragm one at The skeleton of type, the skeleton are inserted in the magnetic gap, and the voice coil is fixed on the skeleton.
As an improvement the skeleton is fixed to the flexible circuit board, the voice coil far from one end of the vibrating diaphragm It is arranged with the flexible circuit board along the direction of vibration interval of the loudspeaker.
As an improvement the vibrating diaphragm include ring film, top dome shape centrum and be connected to the ring film with Horn mouth between the top dome shape centrum, the horn mouth and the skeleton are integrally formed.
As an improvement the side close to the voice coil of the horn mouth bends inwards to form the first bending part, institute It states top dome shape centrum and is fixedly attached to the side of first bending part far from the voice coil, the skeleton includes cylinder and connection Portion, the cylinder are fixedly attached to the flexible circuit board far from one end of the vibrating diaphragm, and the cylinder is far from the flexible electrical One end of road plate bends inwards to form the second bending part, and the both ends of the interconnecting piece are respectively connected to first bending part and institute The second bending part is stated, the voice coil is fixedly connected on one of the inside of the cylinder and the voice coil far from the flexible circuit board End is connect with second bending part.
As an improvement if the junction of the cylinder and the voice coil is equipped at intervals with along the circumferencial direction of the cylinder The glue hole for glue is done, the cylinder is run through in each glue hole.
As an improvement being located above or below the voice coil at position for the skeleton is equipped with several for arranging The gas vent of gas, the gas vent run through the skeleton.
As an improvement being located at for the skeleton is equipped with several at position above and below the voice coil and is used for The gas vent of exhaust, the gas vent run through the skeleton.
As an improvement each glue hole is between two neighbouring gas vents.
As an improvement the magnetic circuit system further includes upper clamp plate, the magnetic gap is set to the upper clamp plate and institute State between magnet steel, the flexible circuit board be set between the upper clamp plate and the magnetic bowl and the flexible circuit board with it is described There is the spacing along the loudspeaker vibration direction between voice coil.
The utility model has the beneficial effects that: vibrational system can be enhanced by setting and the integrally formed skeleton of vibrating diaphragm Integral strength, improve the high frequency characteristics of loudspeaker.
[Detailed description of the invention]
Fig. 1 is the three-dimensional assembling schematic diagram of the loudspeaker of the utility model;
Fig. 2 is the perspective exploded view of the loudspeaker of the utility model;
Fig. 3 is another angle schematic diagram of Fig. 1;
Fig. 4 is the cross-sectional view shown in Fig. 3 along line A-A;
Fig. 5 is the stereoscopic schematic diagram of skeleton and vibrating diaphragm shown in Fig. 2;
Fig. 6 is skeleton shown in Fig. 2 and bell-mouthed stereoscopic schematic diagram;
Fig. 7 is the assembling schematic diagram of skeleton shown in Fig. 2, horn mouth, voice coil and flexible circuit board;
Fig. 8 is the structural schematic diagram of flexible circuit board shown in Fig. 2.
[specific embodiment]
The utility model is described in detail below with reference to Fig. 1 to Fig. 8.
It should be noted that in the utility model embodiment institute it is directional instruction (such as up, down, left, right, before and after, Inside and outside, top, bottom ...) it is only used for explaining in the opposite position under a certain particular pose (as shown in the picture) between each component Relationship etc. is set, if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.
It should also be noted that, when an element is referred to as being " fixed " or " disposed " on another element, which can Directly on the other element or may be simultaneously present centering elements.When an element referred to as " connects " another yuan Part, it, which can be, is directly connected to another element or may be simultaneously present centering elements.
Fig. 1, Fig. 2, Fig. 3 and Fig. 4 are please referred to, according to a kind of loudspeaker 100 that an embodiment of the present invention provides, including Vibrational system 10, magnetic circuit system 20 and the frame 30 for installing vibrational system 10 and magnetic circuit system 20.
Vibrational system 10 includes vibrating diaphragm 11, voice coil 12, skeleton 13 and flexible circuit board 14,11 one of skeleton 13 and vibrating diaphragm It forms and is fixedly connected with voice coil 12 and flexible circuit board 14.Magnetic circuit system 20 include magnetic bowl 21, magnet steel 22, pole piece 23 and on Clamping plate 24, magnetic bowl 21 and pole piece 23 are made of permeability magnetic material, and magnet steel 22 is permanent magnet.Magnet steel 22 and pole piece 23 are mounted on magnetic bowl 21 On, magnetic gap is formed between upper clamp plate 24 and magnet steel 22, voice coil 12 is set in magnetic gap, when voice coil 12 is passed through alternating current When, under the action of 20 magnetic field of magnetic circuit system, voice coil 12 will receive an alternation motive force, alternate motion be generated, to drive Skeleton 13 vibrates together with vibrating diaphragm 11, and vibrating diaphragm 11 pushes air to generate sound.It, can by using the structure of voice coil 12 plus skeleton 13 To move down the position of voice coil 12 toward 21 direction of magnetic bowl, the magnetic field utilization rate of voice coil 12 is improved, BL value is promoted, to improve loudspeaking The sensitivity of device 100, wherein BL value refers to the product of magnetic field strength and effective voice coil wire length in magnetic gap.
Please refer to Fig. 4, Fig. 5 and Fig. 6, in the utility model, vibrating diaphragm 11 include ring film 111, top dome shape centrum 112 with And horn mouth 113, horn mouth 113 bend inwards to form the first bending part 114 close to one end of voice coil 12, top dome shape centrum 112 Outer edge be fixedly connected with the first bending part 114, the one end of horn mouth 113 far from voice coil 12 and ring film 111 are fixed to be connected It connects, and horn mouth 113 and skeleton 13 are integrally formed.The design method enhances the integral strength of vibrational system 10, reduces bone The quality of frame 13 and 11 junction of vibrating diaphragm, so as to improve the high frequency characteristics of loudspeaker 100.
Referring to Figure 6 together, specifically, skeleton 13 includes cylinder 131 and interconnecting piece 132, and cylinder 131 is close to vibrating diaphragm 11 One end bends inwards to form the second bending part 133, the both ends of interconnecting piece 132 respectively with the first bending part 114 and the second bending part 133 inward flange connection, the one end of cylinder 131 far from vibrating diaphragm 11 is fixedly connected with flexible circuit board 15.The outer surface of voice coil 12 It is fixed on the inner surface of cylinder 131, voice coil 12 is fixedly connected close to one end of vibrating diaphragm 11 with the second bending part 133.The design side Formula, it is possible to increase the glue area of voice coil 12 and skeleton 13 enhances the stability between voice coil 12 and skeleton 13 into one.
Referring to Fig. 6, preferably, cylinder 131 is arranged with the position that is bonded of voice coil 12 along the circumferencial direction interval of cylinder 131 Voice coil 12 can be fixed to the interior table of cylinder 131 by injecting glue in glue hole 134 by several glue holes 134 securely Face can also pass through glue gluing between the top of voice coil 12 and the first bending part 114.It is designed in this way and voice coil 12 and bone can be improved The bonding strength of frame 13.It is to be appreciated that voice coil 12 and skeleton 13 can also be fixed by other binders, or connected by mechanical The mode of connecing is fixed.
Referring to Fig. 6, preferably, be additionally provided with several gas vents 135 on skeleton 13, and the top in each glue hole 134 and There is a gas vent 135 in lower section, and vibrational system 10 inwardly and outwardly pushes air to generate sound by vibrating diaphragm 11, because This, in the vibration processes of vibrating diaphragm 11, the inside and outside air pressure of skeleton 13 will be different, increase air drag, hinder vibration The vibration of film 11, and gas vent 135 can pass in and out skeleton 13 for air, and 13 inner and outer air pressure of skeleton can be made to keep balance, reduce Air drag is conducive to improve sense of hearing of the loudspeaker 100 under large amplitude.
Fig. 4, Fig. 7 and Fig. 8 are please referred to, flexible circuit board 14 is circular ring shape, including inner end 141 and outer end in the utility model 142, inner end 141 is centered around the outside of magnet steel 22 and can move with respect to magnet steel 22, and cylinder 131 is fixed to far from one end of vibrating diaphragm 11 The outer end 142 of the inner end 141 of flexible circuit board 14, flexible circuit board 14 is fixed between frame 30 and magnetic bowl 21.Cylinder 131 It is greater than the length along 100 direction of vibration of loudspeaker of voice coil 12 along the length of 100 direction of vibration of loudspeaker, voice coil 12 is far from vibrating diaphragm There is the spacing along 100 direction of vibration of loudspeaker between 11 one end and flexible circuit board 14, the bottom end of cylinder 131 exceeds voice coil It is glued with the inner end of flexible circuit board 14 141 after 12 bottom end certain distances, thus increase the inner end 141 of flexible circuit board 14 with The problem of inner end 141 of the distance between upper clamp plate 24, avoidable flexible circuit board 14 strikes upper clamp plate 24 in vibration processes, The damage to flexible circuit board 14 is avoided, the service life of loudspeaker 100 is extended.
The utility model has the beneficial effects that: by setting and the integrally formed skeleton 13 of horn mouth 113, enhancing vibration The intensity of system 10 reduces the quality of skeleton 13 Yu 11 junction of vibrating diaphragm, improves the high frequency characteristics of loudspeaker 100, simultaneously also The magnetic field utilization rate of voice coil 12 can be improved, to improve the sensitivity of loudspeaker 100;Skeleton 13 exceeds far from one end of vibrating diaphragm 11 Be fixedly connected after 12 bottom end certain distance of voice coil with flexible circuit board 14, increase flexible circuit board 14 inner end 141 and upper folder The distance between plate 24 prevents the inner end 141 of flexible circuit board 14 from striking upper clamp plate 24;Also it is vented by being arranged on skeleton 13 Hole 135 can keep 13 inside and outside air pressure balance of skeleton, improve sense of hearing of the loudspeaker 100 under large amplitude;It is arranged on skeleton 13 Multiple glue holes 134, strengthen the stability between skeleton 13 and voice coil 12.
Above-described is only the embodiments of the present invention, it should be noted here that for the ordinary skill of this field For personnel, without departing from the concept of the present invention, improvement can also be made, but these belong to it is practical Novel protection scope.

Claims (9)

1. a kind of loudspeaker, including frame and it is fixed on the magnetic circuit system and vibrational system of the frame, the magnetic circuit system Including magnetic bowl and the magnet steel and pole piece that are fixed in the magnetic bowl, magnetic gap is equipped in the magnetic circuit system, it is characterised in that: institute State vibrational system include vibrating diaphragm, voice coil, flexible circuit board and with the integrally formed skeleton of the vibrating diaphragm, the skeleton is inserted in In the magnetic gap, the voice coil is fixed on the skeleton.
2. loudspeaker according to claim 1, it is characterised in that: the skeleton is fixed to institute far from one end of the vibrating diaphragm Flexible circuit board, the voice coil and the flexible circuit board is stated to be arranged along the direction of vibration interval of the loudspeaker.
3. loudspeaker according to claim 1, it is characterised in that: the vibrating diaphragm include ring film, top dome shape centrum with And be connected to the horn mouth between the ring film and the top dome shape centrum, the horn mouth and skeleton one at Type.
4. loudspeaker according to claim 3, it is characterised in that: the horn mouth is inwardly curved close to the side of the voice coil Folding forms the first bending part, and the top dome shape centrum is fixedly attached to the side of first bending part far from the voice coil, institute Stating skeleton includes cylinder and interconnecting piece, and the cylinder is fixedly attached to the flexible circuit board, institute far from one end of the vibrating diaphragm It states cylinder to bend inwards to form the second bending part far from one end of the flexible circuit board, the both ends of the interconnecting piece are separately connected To first bending part and second bending part, the voice coil is fixedly connected on the inside of the cylinder and the voice coil is remote One end from the flexible circuit board is connect with second bending part.
5. loudspeaker according to claim 4, it is characterised in that: the junction of the cylinder and the voice coil is along the cylinder The circumferencial direction of body is equipped at intervals with several glue holes for glue, and the cylinder is run through in each glue hole.
6. loudspeaker according to claim 5, it is characterised in that: the skeleton is located above or below the voice coil Several gas vents for exhaust are equipped at position, the gas vent runs through the skeleton.
7. loudspeaker according to claim 5, it is characterised in that: the skeleton is located above and below the voice coil Be equipped at position several for exhaust gas vent, the gas vent is through the skeleton.
8. loudspeaker according to claim 7, it is characterised in that: each glue hole is located at two neighbouring institutes It states between gas vent.
9. loudspeaker according to any one of claims 1 to 8, it is characterised in that: the magnetic circuit system further includes upper clamp plate, The magnetic gap is set between the upper clamp plate and the magnet steel, the flexible circuit board be set to the upper clamp plate with it is described There is the spacing along the loudspeaker vibration direction between magnetic bowl and between the flexible circuit board and the voice coil.
CN201822278314.4U 2018-12-30 2018-12-30 A kind of loudspeaker Active CN209526876U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201822278314.4U CN209526876U (en) 2018-12-30 2018-12-30 A kind of loudspeaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201822278314.4U CN209526876U (en) 2018-12-30 2018-12-30 A kind of loudspeaker

Publications (1)

Publication Number Publication Date
CN209526876U true CN209526876U (en) 2019-10-22

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Family Applications (1)

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CN201822278314.4U Active CN209526876U (en) 2018-12-30 2018-12-30 A kind of loudspeaker

Country Status (1)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111131979A (en) * 2019-12-13 2020-05-08 瑞声科技(新加坡)有限公司 Sound production device
CN111405424A (en) * 2019-12-27 2020-07-10 瑞声科技(新加坡)有限公司 Sound production device
WO2021128336A1 (en) * 2019-12-27 2021-07-01 瑞声声学科技(深圳)有限公司 Sound production device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111131979A (en) * 2019-12-13 2020-05-08 瑞声科技(新加坡)有限公司 Sound production device
CN111131979B (en) * 2019-12-13 2021-09-10 瑞声科技(新加坡)有限公司 Sound production device
CN111405424A (en) * 2019-12-27 2020-07-10 瑞声科技(新加坡)有限公司 Sound production device
WO2021128336A1 (en) * 2019-12-27 2021-07-01 瑞声声学科技(深圳)有限公司 Sound production device
CN111405424B (en) * 2019-12-27 2021-07-09 瑞声科技(新加坡)有限公司 Sound production device

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