CN204231663U - Loud speaker - Google Patents

Loud speaker Download PDF

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Publication number
CN204231663U
CN204231663U CN201420750252.1U CN201420750252U CN204231663U CN 204231663 U CN204231663 U CN 204231663U CN 201420750252 U CN201420750252 U CN 201420750252U CN 204231663 U CN204231663 U CN 204231663U
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voice coil
cushion block
centring disk
magnetic
loud speaker
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CN201420750252.1U
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Chinese (zh)
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姚岳阳
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姚岳阳
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Abstract

The utility model discloses a kind of loud speaker, comprise: frame, the sound basin be located in described frame, be connected to the voice coil loudspeaker voice coil of described sound basin and be connected to the magnetic circuit system of described frame, be provided with above described magnetic circuit system and be contained in described voice coil loudspeaker voice coil and at least two cushion blocks stacked successively, described loud speaker also comprises at least one centring disk, described in the inward flange of described at least one centring disk is fixed between at least two cushion blocks, the outward flange of described at least one centring disk is connected to the medial surface of described voice coil loudspeaker voice coil.The utility model loud speaker increases the elasticity scope of activities of centring disk, decreases the nonlinear distortion that loud speaker produces when large amplitude, and solves fixing simplicity and the reliability of centring disk from technique.

Description

Loud speaker
Technical field
The utility model relates to stereo set technical field, particularly a kind of loud speaker.
Background technology
Loud speaker is a kind of energy transducer signal of telecommunication being transformed into acoustical signal.When different electron energies reaches voice coil loudspeaker voice coil, the magnetic field that voice coil loudspeaker voice coil produces a kind of energy and magnet is interactive, this kind of interaction causes sound basin to vibrate, because electron energy changes at any time, the voice coil loudspeaker voice coil of loud speaker can move forward or backward, therefore, the sound basin of loud speaker can move thereupon, and makes the density degree of air change and produce sound.
But, existing loud speaker produces front and back piston like motion to make sound basin, adopt centring disk to be fixed in voice coil loudspeaker voice coil outside, the Main Function of centring disk is the tram in order to keep voice coil loudspeaker voice coil in magnetic gap, and voice coil loudspeaker voice coil is vibrational system system reciprocating motion vertically when stressed.When small diameter loudspeaker want to obtain larger bear power time, voice coil diameter can increase, but brings the problem that centring disk reduces elasticity activity space while increasing, and makes centring disk restoring force poor, not endurance, seriously limits the motion state of voice coil loudspeaker voice coil.
Utility model content
The utility model proposes a kind of loud speaker, the elasticity scope of activities of centring disk can be increased, reduce the nonlinear distortion that loud speaker produces when large amplitude, and solve fixing simplicity and the reliability of centring disk from technique.
For realizing above-mentioned utility model object, the utility model adopts following technical scheme:
A kind of loud speaker, comprise: frame, the sound basin be located in described frame, be connected to the voice coil loudspeaker voice coil of described sound basin and be connected to the magnetic circuit system of described frame, be provided with above described magnetic circuit system and be contained in described voice coil loudspeaker voice coil and at least two cushion blocks stacked successively, described loud speaker also comprises at least one centring disk, described in the inward flange of described at least one centring disk is fixed between at least two cushion blocks, the outward flange of described at least one centring disk is connected to the medial surface of described voice coil loudspeaker voice coil.
Further, in above-mentioned loud speaker, described at least two cushion blocks comprise the first cushion block and are located at the second cushion block on the first cushion block, and described at least one centring disk comprises a centring disk, and the inward flange of described centring disk is fixed between described first cushion block and the second cushion block.
Further, in above-mentioned loud speaker, the inward flange of described centring disk by bonding, be spirally connected or connect and fix between described first cushion block and the second cushion block.
Further, in above-mentioned loud speaker, described at least two cushion blocks comprise the first cushion block, the second cushion block and the 3rd cushion block that stack successively, described at least one centring disk comprises the first centring disk and the second centring disk that be arranged in parallel, the inward flange of described first centring disk is fixed between described first cushion block and the second cushion block, and the outward flange of described centring disk is connected to the medial surface of described voice coil loudspeaker voice coil; The inward flange of described second centring disk is fixed between described second cushion block and the 3rd cushion block, and the outward flange of described second centring disk is connected to the medial surface of described voice coil loudspeaker voice coil.
Further, in above-mentioned loud speaker, the inward flange of described first centring disk by bonding, be spirally connected or connect and fix between described first cushion block and the second cushion block; The inward flange of described second centring disk by bonding, be spirally connected or connect and fix between described second cushion block and the 3rd cushion block.
Further, in above-mentioned loud speaker, the magnetic conductive board that described magnetic circuit system comprises magnetic conductor bowl, is contained in the magnet steel in described magnetic conductor bowl and is located on described magnet steel, part and the magnetic conductive board of described magnet steel are contained in voice coil loudspeaker voice coil, and described at least two cushion blocks are fixed on described magnetic conductive board.
Further, in above-mentioned loud speaker, described magnetic conductor bowl comprises bottom, be convexly equipped in conducting magnetic column in the middle part of described bottom and by vertically extending in the same way both sides, two ends, described bottom, described magnet steel is located on described conducting magnetic column, and the medial surface of described magnetic conductor bowl both sides, magnet steel expose the magnetic gap forming annular between the lateral surface of voice coil loudspeaker voice coil and the lateral surface of conducting magnetic column.
Further, in above-mentioned loud speaker, described magnetic circuit system comprises magnetic conduction lower plate, be convexly equipped in conducting magnetic column in the middle part of described magnetic conduction lower plate and the magnet steel be sheathed on successively on described conducting magnetic column and magnetic conduction upper plate, and described at least two cushion blocks are fixed on described conducting magnetic column.
Further, in above-mentioned loud speaker, between the medial surface of described magnet steel, the lateral surface of magnetic conduction upper plate and the lateral surface of magnetic conductive board, form the magnetic gap of annular.
Further, in above-mentioned loud speaker, the outward flange of described centring disk by bonding, to be spirally connected or the mode such as clamping is fixed on the medial surface of described voice coil loudspeaker voice coil.
The utility model loud speaker increases the elasticity scope of activities of centring disk, decreases the nonlinear distortion that loud speaker produces when large amplitude, and solves fixing simplicity and the reliability of centring disk from technique.
Accompanying drawing explanation
Fig. 1 is the structural representation of the first embodiment of the utility model loud speaker;
Fig. 2 is the structural representation of the second embodiment of the utility model loud speaker;
Fig. 3 is the structural representation of the 3rd embodiment of the utility model loud speaker;
Fig. 4 is the structural representation of the 4th embodiment of the utility model loud speaker.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Refer to Fig. 1, Fig. 1 is the structural representation of the first embodiment of the utility model loud speaker.The utility model loud speaker is comprise frame 1, the sound basin 2 be located in described frame 1, be connected to the voice coil loudspeaker voice coil 3 of described sound basin 2 and be connected to the magnetic circuit system of described frame 1, the first cushion block 4 and the second cushion block 5 be contained in described voice coil loudspeaker voice coil 3 is provided with above described magnetic circuit system, described second cushion block 5 is located on the first cushion block 4, described loud speaker also comprises a centring disk 6, the inward flange of described centring disk 6 is fixed between described first cushion block 4 and the second cushion block 5, and the outward flange of described centring disk 6 is connected to the medial surface of described voice coil loudspeaker voice coil 3.
Wherein, the inward flange of described centring disk 6, by being bonded and fixed between described first cushion block 4 and the second cushion block 5, is appreciated that the inward flange of described centring disk 6 can also be fixed between described first cushion block 4 and the second cushion block 5 by modes such as mechanical structures.Such as, described first cushion block 4 and the second cushion block 5 are provided with through hole (not shown) near the inner plane of centring disk 6, the inner plane of described centring disk 6 also correspondence is provided with installing hole (not shown), wear described first cushion block 4 and the second cushion block 5 by fixtures such as screws, thus the inward flange of described centring disk 6 is fixed between described first cushion block 4 and the second cushion block 5.
In like manner, the outward flange of described centring disk 6 also by bonding, to be spirally connected or the mode such as clamping is fixed on the medial surface of described voice coil loudspeaker voice coil 3.
Described first cushion block 4 and the second cushion block 5 can adopt metal such as copper or nonmetal such as plastic or other material to make.
Described magnetic circuit system forms gap magnetic field, to drive voice coil loudspeaker voice coil 3 to move, drives sound basin 2 to vibrate, thus sound by voice coil loudspeaker voice coil 3.In the present embodiment, described loud speaker is inner magnetic structure, the magnetic conductive board 9 that described magnetic circuit system comprises magnetic conductor bowl 7, is contained in the magnet steel 8 in described magnetic conductor bowl 7 and is located on described magnet steel 8, the part of described magnet steel 8 and magnetic conductive board 9 are contained in voice coil loudspeaker voice coil 3, and described first cushion block 4 is fixed on described magnetic conductive board 9.
Described magnetic conductor bowl 7 is in bowl-shape, it comprises bottom 72, be convexly equipped in conducting magnetic column 74 in the middle part of described bottom 72 and by vertically extending in the same way both sides 76, two ends, described bottom 72, described magnet steel 8 is located on described conducting magnetic column 74, described magnetic conductive board 9 is in cylinder or annular, like this, the magnetic gap of annular is formed between the lateral surface of the described medial surface of magnetic conductor bowl 7 both sides 76, the lateral surface of magnet steel 8 and conducting magnetic column 74, by described centring disk 6 and the first cushion block 4 and the second cushion block 5, described voice coil loudspeaker voice coil 3 is made to be limited in motion in magnetic gap.
Described voice coil loudspeaker voice coil 3 comprises the skeleton 31 of tubular and to be wrapped on this skeleton 31 and to be positioned at the coil 32 of skeleton 31 lower end, the outward flange of described centring disk 6 is connected to the medial surface of described voice coil loudspeaker voice coil 3 skeleton 31, further, the medial surface of the upper end (namely away from one end of coil 32) of skeleton 31 is located at by described centring disk 6.Described voice coil loudspeaker voice coil 3 is sheathed on described magnet steel 8, and described coil 32 stretches in described magnetic gap, provides AC signal to described coil 32, and voice coil loudspeaker voice coil 3 will be made to produce motive force in the axial direction, promotes the motion of sound basin 2 and sounds.Described centring disk 6 limits the position of voice coil loudspeaker voice coil 3 in magnetic gap, guarantees that voice coil loudspeaker voice coil 3 can vertical vibration in magnetic gap, i.e. lower motion in the axial direction, and limits moving left and right of voice coil loudspeaker voice coil 3 in radial directions, ensures the stable of tonequality.
Described sound basin 2 is roughly in infundibulate, and the edge of its large mouth is fixed in frame 1 by outstanding limit, and the edge of its osculum is fixed on voice coil loudspeaker voice coil 3, is specifically fixed on the skeleton 31 of voice coil loudspeaker voice coil 3.
Described loud speaker also comprises dust cap 10, and described dust cap 10 is located at the center of sound basin 2, and is positioned at the top of voice coil loudspeaker voice coil 3.
In addition, the shape of described frame 1 can design as required, as peviform, the shape such as bowl-shape, stepped.Described frame 1 open side be also provided with a trim ring 11, with the outstanding limit of stationary tone basin 2, guarantee that sound basin 2 moves up and down better.Described trim ring 11 can adopt paper or plastic or other material to make.
Refer to Fig. 2, Fig. 2 is the structural representation of the second embodiment of the utility model loud speaker.Compared to the first embodiment, difference in the present embodiment is only: described loud speaker is outer magnetic structure, and namely described magnetic circuit system comprises magnetic conduction lower plate 7 ', is convexly equipped in conducting magnetic column 8 ' and the magnet steel 9 ' be sheathed on successively on described conducting magnetic column 8 ' and the magnetic conduction upper plate 12 at described magnetic conduction lower plate 7 ' middle part.Described magnet steel 9 ' and magnetic conduction upper plate 12 are all ringwise.The magnetic gap of annular is formed between the medial surface of described magnet steel 9 ', the medial surface of magnetic conduction upper plate 12 and the lateral surface of conducting magnetic column 8 '.Described first cushion block 4 is fixed on described conducting magnetic column 8 ', moves to be limited in magnetic gap by voice coil loudspeaker voice coil 3.
Refer to Fig. 3, Fig. 3 is the structural representation of the 3rd embodiment of the utility model loud speaker.Compared to the first embodiment, difference in the present embodiment is only: contain the first cushion block 4 ', the second cushion block 5 ' and the 3rd cushion block 5 that stack successively in described voice coil loudspeaker voice coil 3 "; described loud speaker also comprises the first centring disk 6 ' and the second centring disk 6 that be arranged in parallel ", the inward flange of described first centring disk 6 ' is fixed between described first cushion block 4 and the second cushion block 5 ', and the outward flange of described first centring disk 6 ' is connected to the medial surface of described voice coil loudspeaker voice coil 3; Described second centring disk 6 " inward flange be fixed on described second cushion block 5 ' and the 3rd cushion block 5 " between, described second centring disk 6 " outward flange be connected to the medial surface of described voice coil loudspeaker voice coil 3.
Be appreciated that, described centring disk can also be two or more, described cushion block can also be more than three, namely many one of cushion block number ratio centring disk quantity is only needed, the inward flange of centring disk can be fixed between two cushion blocks, and the outward flange of centring disk be connected to the medial surface of described voice coil loudspeaker voice coil.
Like this, by the effect of two centring disk or many centring disks, can the elasticity scope of activities of centring disk further, decrease the nonlinear distortion that loud speaker produces when large amplitude.
Refer to Fig. 4, Fig. 4 is the structural representation of the 4th embodiment of the utility model loud speaker.Compared to the 3rd embodiment, difference in the present embodiment is only: described loud speaker is outer magnetic structure, and namely described magnetic circuit system comprises magnetic conduction lower plate 7 ', is convexly equipped in conducting magnetic column 8 ' and the magnet steel 9 ' be sheathed on successively on described conducting magnetic column 8 ' and the magnetic conduction upper plate 10 at described magnetic conduction lower plate 7 ' middle part.Described magnet steel 9 ' and magnetic conduction upper plate 12 are all ringwise.The magnetic gap of annular is formed between the medial surface of described magnet steel 9 ', the medial surface of magnetic conduction upper plate 12 and the lateral surface of conducting magnetic column 8 '.Described first cushion block 4 is fixed on described conducting magnetic column 8 ', moves to be limited in magnetic gap by voice coil loudspeaker voice coil 3.
Compared to prior art, the utility model loud speaker is by being fixed on the medial surface of voice coil loudspeaker voice coil by outward flange one end of centring disk, and the inward flange of centring disk is fixed between two cushion blocks, increase the elasticity scope of activities of centring disk, decrease the nonlinear distortion that loud speaker produces when large amplitude, and solve fixing simplicity and the reliability of centring disk from technique.
Here description of the present utility model and application is illustrative, not wants by scope restriction of the present utility model in the above-described embodiments.Distortion and the change of embodiment disclosed are here possible, are known for the replacement of embodiment those those of ordinary skill in the art and the various parts of equivalence.Those skilled in the art are noted that when not departing from spirit of the present utility model or substantive characteristics, the utility model can in other forms, structure, layout, ratio, and to realize with other assembly, material and parts.When not departing from the utility model scope and spirit, can other distortion be carried out here to disclosed embodiment and change.

Claims (10)

1. a loud speaker, it is characterized in that, comprise: frame, the sound basin be located in described frame, be connected to the voice coil loudspeaker voice coil of described sound basin and be connected to the magnetic circuit system of described frame, be provided with above described magnetic circuit system and be contained in described voice coil loudspeaker voice coil and at least two cushion blocks stacked successively, described loud speaker also comprises at least one centring disk, described in the inward flange of described at least one centring disk is fixed between at least two cushion blocks, the outward flange of described at least one centring disk is connected to the medial surface of described voice coil loudspeaker voice coil.
2. loud speaker according to claim 1, it is characterized in that, described at least two cushion blocks comprise the first cushion block and are located at the second cushion block on the first cushion block, and described at least one centring disk comprises a centring disk, and the inward flange of described centring disk is fixed between described first cushion block and the second cushion block.
3. loud speaker according to claim 2, is characterized in that, the inward flange of described centring disk by bonding, be spirally connected or connect and fix between described first cushion block and the second cushion block.
4. loud speaker according to claim 1, it is characterized in that, described at least two cushion blocks comprise the first cushion block, the second cushion block and the 3rd cushion block that stack successively, described at least one centring disk comprises the first centring disk and the second centring disk that be arranged in parallel, the inward flange of described first centring disk is fixed between described first cushion block and the second cushion block, and the outward flange of described centring disk is connected to the medial surface of described voice coil loudspeaker voice coil; The inward flange of described second centring disk is fixed between described second cushion block and the 3rd cushion block, and the outward flange of described second centring disk is connected to the medial surface of described voice coil loudspeaker voice coil.
5. loud speaker according to claim 4, is characterized in that, the inward flange of described first centring disk by bonding, be spirally connected or connect and fix between described first cushion block and the second cushion block; The inward flange of described second centring disk by bonding, be spirally connected or connect and fix between described second cushion block and the 3rd cushion block.
6. the loud speaker according to any one of claim 1-5, it is characterized in that, the magnetic conductive board that described magnetic circuit system comprises magnetic conductor bowl, is contained in the magnet steel in described magnetic conductor bowl and is located on described magnet steel, the part of described magnet steel and magnetic conductive board are contained in voice coil loudspeaker voice coil, and described at least two panels cushion block is fixed on described magnetic conductive board.
7. loud speaker according to claim 6, it is characterized in that, described magnetic conductor bowl comprises bottom, be convexly equipped in conducting magnetic column in the middle part of described bottom and by vertically extending in the same way both sides, two ends, described bottom, described magnet steel is located on described conducting magnetic column, and the medial surface of described magnetic conductor bowl both sides, magnet steel expose the magnetic gap forming annular between the lateral surface of voice coil loudspeaker voice coil and the lateral surface of conducting magnetic column.
8. the loud speaker according to any one of claim 1-5, it is characterized in that, described magnetic circuit system comprises magnetic conduction lower plate, be convexly equipped in conducting magnetic column in the middle part of described magnetic conduction lower plate and the magnet steel be sheathed on successively on described conducting magnetic column and magnetic conduction upper plate, and described at least two cushion blocks are fixed on described conducting magnetic column.
9. loud speaker according to claim 8, is characterized in that, forms the magnetic gap of annular between the medial surface of described magnet steel, the medial surface of magnetic conduction upper plate and the lateral surface of conducting magnetic column.
10. the loud speaker according to any one of claim 1-5, is characterized in that, the outward flange of described centring disk by bonding, to be spirally connected or the mode such as clamping is fixed on the medial surface of described voice coil loudspeaker voice coil.
CN201420750252.1U 2014-12-04 2014-12-04 Loud speaker Active CN204231663U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420750252.1U CN204231663U (en) 2014-12-04 2014-12-04 Loud speaker

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CN201420750252.1U CN204231663U (en) 2014-12-04 2014-12-04 Loud speaker

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105050007A (en) * 2015-08-27 2015-11-11 国光电器股份有限公司 High-power thin type speaker
CN105187997A (en) * 2015-10-16 2015-12-23 歌尔声学股份有限公司 Loudspeaker
WO2021088931A1 (en) * 2019-11-08 2021-05-14 歌尔股份有限公司 Sound generation device and electronic terminal

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105050007A (en) * 2015-08-27 2015-11-11 国光电器股份有限公司 High-power thin type speaker
CN105187997A (en) * 2015-10-16 2015-12-23 歌尔声学股份有限公司 Loudspeaker
WO2017063262A1 (en) * 2015-10-16 2017-04-20 歌尔声学股份有限公司 Loudspeaker
US10469952B2 (en) 2015-10-16 2019-11-05 Goertek Inc. Loudspeaker
WO2021088931A1 (en) * 2019-11-08 2021-05-14 歌尔股份有限公司 Sound generation device and electronic terminal

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