CN209390360U - Earphone core - Google Patents

Earphone core Download PDF

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Publication number
CN209390360U
CN209390360U CN201822278899.XU CN201822278899U CN209390360U CN 209390360 U CN209390360 U CN 209390360U CN 201822278899 U CN201822278899 U CN 201822278899U CN 209390360 U CN209390360 U CN 209390360U
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CN
China
Prior art keywords
magnet steel
vibrating diaphragm
cage
earphone core
centring disk
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Active
Application number
CN201822278899.XU
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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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Priority to CN201822278899.XU priority Critical patent/CN209390360U/en
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Publication of CN209390360U publication Critical patent/CN209390360U/en
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Abstract

The utility model provides a kind of earphone core, including cage, the magnetic circuit system being contained in cage and the vibrational system being immobilizated in cage, the vibrational system includes vibrating diaphragm, drive the voice coil and centring disk of the diaphragm oscillations, the vibrating diaphragm includes the lower vibrating diaphragm that periphery is retained on the upper vibrating diaphragm of the cage and is oppositely arranged with the upper vibrating diaphragm interval, the magnetic circuit system includes the first magnet steel and the second magnet steel for being fixedly arranged on the magnetic bowl of the cage and being successively stacked on the magnetic bowl from bottom to top, the outer peripheral edge of the centring disk and the voice coil are affixed, the affixed and described inner peripheral is set on the outside of first magnet steel inner peripheral with second magnet steel, the lower vibrating diaphragm is fixed in below the centring disk, the direction of vibration of first magnet steel and second magnet steel along the upper vibrating diaphragm magnetizes.Earphone core acoustical behavior provided by the utility model is more preferably.

Description

Earphone core
[technical field]
The utility model relates to electroacoustic transducer technical field more particularly to a kind of ear for converting electrical signals to voice signal Machine core.
[background technique]
Recently as the fast development of mobile communication technology, consumer is more and more using the shifting for having phonetic function Dynamic communication apparatus, and earphone also becomes one of essential audio-visual equipment in people's daily routines work, people not only want Ask its appearance small and exquisite fine, it is convenient to wear, it more requires its sound quality good, there is three-dimensional sense.Therefore to the property for further increasing earphone The project of energy and internal structure more rationally designed into worth research instantly.
The not set centring disk of earphone core in the related technology, and earphone core in the related technology by one end of lower vibrating diaphragm with Voice coil connection, the other end is folded between the first magnet steel and the second magnet steel, and such structure can allow earphone core in diaphragm oscillations Generation is waved, and the degradation of earphone core is made.
Therefore, it is necessary to provide the new earphone core of one kind to solve the above problems.
[utility model content]
The purpose of the utility model is to overcome above-mentioned technical problem, a kind of acoustical behavior more preferably earphone core is provided.
To achieve the goals above, the utility model provides a kind of earphone core, including cage, the magnetic circuit being contained in cage System and the vibrational system being immobilizated in cage, the vibrational system includes the voice coil of vibrating diaphragm, the driving diaphragm oscillations, described Vibrating diaphragm includes the lower vibrating diaphragm that periphery is retained on the upper vibrating diaphragm of the cage and is oppositely arranged with the upper vibrating diaphragm interval, the magnetic circuit System includes the first magnet steel and the second magnetic for being fixedly arranged on the magnetic bowl of the cage and being successively stacked on the magnetic bowl from bottom to top Steel, the vibrational system further include centring disk, and the outer peripheral edge of the centring disk and the voice coil are affixed, inner peripheral with it is described The one end of second magnet steel far from the voice coil is affixed and the inner peripheral is set on the outside of first magnet steel, and the lower vibrating diaphragm is solid Below the centring disk, the direction of vibration of first magnet steel and second magnet steel along the upper vibrating diaphragm magnetizes.
Preferably, the centring disk is adhesively fixed with the lower vibrating diaphragm, and the centring disk and second magnet steel are viscous Connect fixation.
Preferably, first magnet steel is fixed with the second magnet steel gluing, and first magnet steel and second magnetic The polarity of steel opposite end is opposite.
Preferably, second magnet steel includes the lower surface abutted with first magnet steel, opposite with the lower surface sets The side surface of the upper surface and the connection lower surface and the upper surface set, the inner peripheral are fixed in the lower surface, The side surface is inclined-plane.
Preferably, first magnet steel is oppositely arranged with second magnet steel center, first magnet steel include with it is described The first surface that second magnet steel abuts, the orthographic projection in the first surface towards the upper vibrating diaphragm direction are fallen into the lower surface, The orthographic projection in the lower surface towards the upper vibrating diaphragm direction is fallen into the upper surface.
Preferably, the voice coil is set to below the upper vibrating diaphragm, and the voice coil is entwined by conducting wire and has receiving Chamber, second magnet steel are located in the accommodating chamber.
Preferably, the lower vibrating diaphragm includes ring portion, the middle part being set on the inside of the ring portion and is set to described Fixed part on the outside of ring portion.
Preferably, the outer peripheral edge is located between the fixed part and the voice coil, and the inner peripheral is located in described Between middle part and second magnet steel.
Compared with the relevant technologies, earphone core provided by the utility model is additionally arranged centring disk, the centring disk it is interior Periphery is set on the outside of the first magnet steel and the lower surface bonds of inner peripheral and the second magnet steel are fixed, the outer peripheral edge of the centring disk It is fixed with voice coil, lower vibrating diaphragm is adhered to below centring disk, and such structure is able to suppress earphone core waving in vibration, especially It can effectively promote low frequency characteristic in large amplitude.
[Detailed description of the invention]
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings Obtain other attached drawings, in which:
Fig. 1 is the perspective view of earphone core provided by the utility model;
Fig. 2 is the exploded view of earphone core provided by the utility model;
Fig. 3 is the cross-sectional view in Fig. 1 along line A-A.
[specific embodiment]
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work All other embodiment obtained, fall within the protection scope of the utility model.
Please refer to Fig. 1, Fig. 2 and Fig. 3, the utility model provides a kind of earphone core 100, including cage 1, is contained in Magnetic circuit system 2 in cage 1 and the vibrational system 3 being immobilizated in cage 1.
The vibrational system 3 includes the voice coil 32 and centring disk 33 of vibrating diaphragm 31, the driving vibration of vibrating diaphragm 31.The vibration Film 31 includes that periphery is retained on the upper vibrating diaphragm 311 of the cage 1 and is spaced the lower vibrating diaphragm being oppositely arranged with the upper vibrating diaphragm 311 312。
The magnetic circuit system 2 includes the magnetic bowl 23 for being fixedly arranged on the cage 1, is successively stacked at the magnetic bowl 23 from bottom to top On the first magnet steel 21 and the second magnet steel 22 and the pole piece 24 for being attached at 22 surface of the second magnet steel.
The voice coil 32 is set to 311 lower section of upper vibrating diaphragm, and the voice coil 32 is entwined by conducting wire and has receiving Chamber 32A, second magnet steel 22 are located in the accommodating chamber 32A.
In the present embodiment, the centring disk 33 with the lower vibrating diaphragm 312 in a ring, certainly, the centring disk 33 and the lower vibrating diaphragm 312 can also be composed of multiple molding parts of fission.
In addition, the centring disk 33 is adhesively fixed with the lower vibrating diaphragm 312, the centring disk 33 and second magnetic Steel 22 is adhesively fixed, specifically, the lower vibrating diaphragm 312 bonding and second magnet steel 22 are adhered to the centring disk 33 respectively Opposite two sides.
The outer peripheral edge 331 of the centring disk 33 and the voice coil 32 are fixed in one end far from the upper vibrating diaphragm 311, interior The affixed and described inner peripheral 332 is set to 21 outside of the first magnet steel to periphery 332 with second magnet steel 22.
It should be noted that the bottom wall 231 of the magnetic bowl 23 is rounded, when the diameter dimension of the bottom wall 231 is restricted When, and since the inner peripheral 332 of the centring disk 33 is set to the outside of the first magnet steel 21 and the inner peripheral 332 and the second magnetic The fixation of steel 22 need to adjust the shapes and sizes of first magnet steel 21 and second magnet steel 22.
Specifically, first magnet steel 21 is oppositely arranged with 22 center of the second magnet steel, first magnet steel 21 is in circle Column, second magnet steel 22 are in a circular table shape.Second magnet steel 22 includes the lower surface abutted with first magnet steel 21 221, the upper surface 222 that is oppositely arranged with the lower surface 221 and the lower surface 221 and the upper surface 222 are connect Side surface 223, first magnet steel 21 include the first surface 211 abutted with second magnet steel 22.Wherein, first table The orthographic projection in face 211 towards upper 311 direction of vibrating diaphragm is fallen into the lower surface 221, and the lower surface 221 is towards the upper vibrating diaphragm The orthographic projection in 311 directions is fallen into the upper surface 222.
Certainly, the shape of the side surface 223 can change, and the side surface 223 is an inclined-plane in the present embodiment, Such structure can prevent the earphone core 100 in vibration or under large amplitude working environment, and the side surface 223 is collided The centring disk 33.
Explanation is also needed, first magnet steel 21 and second magnet steel 22 are glued fixed, first magnet steel 21 and second magnet steel 22 magnetize along the direction of vibration B of the upper vibrating diaphragm 311 and first magnet steel 21 and second magnet steel The polarity of 22 opposite ends is opposite.
Specifically, the polarity of the one side abutted with the bottom wall 231 when first magnet steel 21 is the pole N, then described first The polarity on surface 211 is the pole S, and the polarity of the lower surface 221 is the pole N, and the polarity of the upper surface 222 is the pole S;When described The polarity for the one side that one magnet steel 21 is abutted with the bottom wall 231 is the pole S, then the polarity of the first surface 211 is the pole N, described The polarity of lower surface 221 is the pole S, and the polarity of the upper surface 222 is the pole N, in this way, can make first magnet steel 21 and the second magnetic The direction of vibration B of the steel 22 along the upper vibrating diaphragm 311 magnetizes.
In addition, the inner peripheral 332 is fixed in the lower surface 221, the inner peripheral 332 is set to the first surface 211 outsides, in the present embodiment, the inner peripheral 332 is abutted with 211 edge of first surface, makes the first surface 211 Diameter dimension reach full-size, increase the driving force of the magnetic circuit system 2.
The lower vibrating diaphragm 312 is fixed in 22 lower section of centring disk, specifically, the lower vibrating diaphragm 312 includes ring portion 3121, it is set to the middle part 3122 of 3121 inside of ring portion and is set to the fixed part in 3121 outside of ring portion 3123.The outer peripheral edge 331 is located between the fixed part 3123 and the voice coil 32, and the inner peripheral 332 is located in institute It states between middle part 3122 and second magnet steel 22.
Compared with the relevant technologies, earphone core provided by the utility model is additionally arranged centring disk, the centring disk it is interior Periphery is set on the outside of the first magnet steel and the lower surface bonds of inner peripheral and the second magnet steel are fixed, the outer peripheral edge of the centring disk It is fixed with voice coil, lower vibrating diaphragm is adhered to below centring disk, and such structure is able to suppress earphone core waving in vibration, especially It can effectively promote low frequency characteristic in large amplitude.
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 (8)

1. a kind of earphone core, described including cage, the magnetic circuit system being contained in cage and the vibrational system being immobilizated in cage Vibrational system includes the voice coil of vibrating diaphragm, the driving diaphragm oscillations, and the vibrating diaphragm includes the upper vibration that periphery is retained on the cage Film and the lower vibrating diaphragm being oppositely arranged with the upper vibrating diaphragm interval, the magnetic circuit system include be fixedly arranged on the cage magnetic bowl and from It is lower and on be successively stacked at the first magnet steel and the second magnet steel on the magnetic bowl, which is characterized in that the vibrational system further includes Centring disk, the outer peripheral edge of the centring disk and the voice coil are affixed, and inner peripheral and second magnet steel are far from the voice coil One end it is affixed and the inner peripheral is set on the outside of first magnet steel, the lower vibrating diaphragm is fixedly arranged under the centring disk Side, the direction of vibration of first magnet steel and second magnet steel along the upper vibrating diaphragm magnetize.
2. earphone core according to claim 1, which is characterized in that the centring disk is adhesively fixed with the lower vibrating diaphragm, The centring disk is fixed with second bonding magnetic steel.
3. earphone core according to claim 1, which is characterized in that first magnet steel and the second magnet steel gluing are solid It is fixed, and first magnet steel is opposite with the polarity of the second magnet steel opposite end.
4. earphone core according to claim 1, which is characterized in that second magnet steel includes abutting with first magnet steel Lower surface, the upper surface that is oppositely arranged with the lower surface and the side surface for connecting the lower surface and the upper surface, The inner peripheral is fixed in the lower surface, and the side surface is inclined-plane.
5. earphone core according to claim 4, which is characterized in that first magnet steel is opposite with second magnet steel center Setting, first magnet steel include the first surface abutted with second magnet steel, and the first surface is towards the upper vibrating diaphragm side To orthographic projection fall into the lower surface, the orthographic projection in the lower surface towards the upper vibrating diaphragm direction falls into the upper surface It is interior.
6. earphone core according to claim 1, which is characterized in that the voice coil is set to below the upper vibrating diaphragm, described Voice coil is entwined by conducting wire and is had accommodating chamber, and second magnet steel is located in the accommodating chamber.
7. earphone core according to claim 1, which is characterized in that the lower vibrating diaphragm includes ring portion, is set to the folding Middle part on the inside of ring portion and the fixed part being set on the outside of the ring portion.
8. earphone core according to claim 7, which is characterized in that the outer peripheral edge is located in the fixed part and the sound Between circle, the inner peripheral is located between the middle part and second magnet steel.
CN201822278899.XU 2018-12-31 2018-12-31 Earphone core Active CN209390360U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201822278899.XU CN209390360U (en) 2018-12-31 2018-12-31 Earphone core

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201822278899.XU CN209390360U (en) 2018-12-31 2018-12-31 Earphone core

Publications (1)

Publication Number Publication Date
CN209390360U true CN209390360U (en) 2019-09-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201822278899.XU Active CN209390360U (en) 2018-12-31 2018-12-31 Earphone core

Country Status (1)

Country Link
CN (1) CN209390360U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021114070A1 (en) * 2019-12-10 2021-06-17 瑞声声学科技(深圳)有限公司 Earphone core and earphone

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021114070A1 (en) * 2019-12-10 2021-06-17 瑞声声学科技(深圳)有限公司 Earphone core and earphone

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