CN204131721U - A kind of loud speaker - Google Patents

A kind of loud speaker Download PDF

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Publication number
CN204131721U
CN204131721U CN201420574510.5U CN201420574510U CN204131721U CN 204131721 U CN204131721 U CN 204131721U CN 201420574510 U CN201420574510 U CN 201420574510U CN 204131721 U CN204131721 U CN 204131721U
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China
Prior art keywords
diaphragm
loud speaker
washer
ring
voice coil
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CN201420574510.5U
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Chinese (zh)
Inventor
张�成
金永洙
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Goertek Inc
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Goertek Inc
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Priority to CN201420574510.5U priority Critical patent/CN204131721U/en
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Abstract

The utility model discloses a kind of loud speaker, comprise magnetic circuit system, vibrational system, and for holding the shell of magnetic circuit system and vibrational system, wherein, the voice coil loudspeaker voice coil that vibrational system comprises vibrating diaphragm and combines with vibrating diaphragm, centring disk is fixedly connected with between vibrating diaphragm and shell, the ring that vibrating diaphragm comprises diaphragm and arranges along diaphragm periphery, magnetic circuit system comprises and is fixed on internal magnet on magnetic conductive board and interior washer successively, the outside of internal magnet and interior washer is surrounded with external magnet and outer washer, the circulus of ring to be cross section be curved surface shaped, ring bends towards the magnetic circuit system of inside loudspeakers, the outer washer of ring-type comprises the lug boss just arranged to diaphragm and towards diaphragm projection, and the flat part that corresponding ring is arranged, the thickness of lug boss is greater than the thickness of flat part.Loud speaker of the present utility model, improves the space availability ratio between vibrating diaphragm and washer, is conducive to the miniaturization of speaker product.

Description

A kind of loud speaker
Technical field
The utility model relates to electro-acoustic product technical field, specifically, relates to a kind of loud speaker.
Background technology
Along with the develop rapidly of electronic industry, portable type electronic product more and more tends to miniaturization structure development, and the loud speaker as acoustical device important in electronic product also just needs to improve to miniaturization structure.
Existing loud speaker, comprises magnetic circuit system and vibrational system, and for holding the shell of magnetic circuit system and vibrational system.Wherein, magnetic circuit system comprises magnet and the washer as magnetic conductor, washer comprises flat interior washer and is centered around the outer washer of the annular around interior washer, vibrational system comprises voice coil loudspeaker voice coil and vibrating diaphragm, the ring that vibrating diaphragm comprises diaphragm and arranges along diaphragm periphery, ring makes the loop configuration that cross section is curved surface mostly.Existing outer washer generally makes flat circulus, and the loud speaker of this structure collides when vibrating to prevent vibrational system and between washer, needs to leave oscillation space between vibrational system and washer.In order to meet the restriction of the oscillation space between vibrational system and outer washer, vibrating diaphragm must leave with outer washer the oscillation space distance met the demands near the point of outer washer.And this certainly will to result on vibrating diaphragm redundant space between all the other positions and outer washer comparatively large, result in the waste of the too much redundant space on vibrating diaphragm between all the other positions and outer washer, be unfavorable for the miniaturization of loud speaker.Especially the curved surface being directed to ring is towards the bending loud speaker of the magnetic circuit system of inside loudspeakers, near the curved surface summit of the point of outer washer at ring on vibrating diaphragm, in order to adapt to the curved surface summit of ring, redundancy between flat outer washer and vibrating diaphragm will be caused apart from excessive, cause the waste in the space between outer washer and vibrating diaphragm.Therefore, in order to adapt to the development trend of miniaturization of electronic products, be necessary to improve the loud speaker of said structure, to realize the miniaturization of loud speaker.
Utility model content
Technical problem to be solved in the utility model is: provide a kind of and be beneficial to miniaturized loud speaker.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of loud speaker, comprise magnetic circuit system, vibrational system and the shell for holding described magnetic circuit system and described vibrational system, wherein, the voice coil loudspeaker voice coil that described vibrational system comprises vibrating diaphragm and combines with described vibrating diaphragm, centring disk is fixedly connected with between described vibrating diaphragm and described shell, the ring that described vibrating diaphragm comprises diaphragm and arranges along described diaphragm periphery, the circulus of described ring to be cross section be curved surface shaped; Described magnetic circuit system comprises and is fixed on internal magnet on magnetic conductive board and interior washer successively, the outside of described internal magnet and described interior washer is surrounded with external magnet and outer washer, described ring bends towards the magnetic circuit system of inside loudspeakers, the outer washer of described ring-type comprises the flat part just arranged to described diaphragm and towards lug boss and the corresponding described ring of the setting of described diaphragm projection, and the thickness of described lug boss is greater than the thickness of described flat part.
Preferably, buffer part is connected with between described lug boss and described flat part.
Preferably, described lug boss, described buffer part and the integrated molding structure of described flat part.
Preferably, on described shell, injection moulding is provided with electric-conductor, and described electric-conductor is electrically connected with described centring disk, and described centring disk is electrically connected with the voice coil leads of described voice coil loudspeaker voice coil, described centring disk is provided with the pad for being electrically connected with described voice coil leads.
Preferably, described centring disk comprise annular inside casing, with the hard-wired ring frame of the shell of loud speaker and at least two elasticity arms be oppositely arranged being connected described ring frame and described annular inside casing.
Preferably, the inwall of the annular inside casing of described centring disk is provided with two flanges be oppositely arranged, and described pad is arranged on described flange.
Preferably, cave in respectively and be provided with depressed part in corresponding described pad place, the both sides of described interior washer.
Preferably, described diaphragm is the circulus of hollow.
Preferably, in described diaphragm, vacancy is installed with stiffener.
After have employed technique scheme, the beneficial effects of the utility model are:
In loud speaker of the present utility model, the structure that the curved surface making outer washer adapt to ring bends to the magnetic circuit system towards inside loudspeakers, by outer washer being arranged to lug boss, buffer part and flat part that one connects, the thickness of lug boss is made to be greater than the thickness of flat part, lug boss is protruding to diaphragm direction, with when meeting diaphragm, oscillation space between ring and outer washer, take full advantage of the space between vibrating diaphragm and outer washer, improve space availability ratio, increase the magnetic conductivity of outer washer.Therefore, when the magnetic conduction meeting external washer requires, the overall size of loud speaker can be reduced, be conducive to the miniaturization of speaker product.
In the utility model, cave in respectively and be provided with depressed part in the corresponding described pad place of dual-side of interior washer.By this structure of interior washer, make interior washer when meeting centring disk and the oscillation space between pad and interior washer thereof, take full advantage of the oscillation space between centring disk and interior washer, improve space availability ratio, increase the magnetic conductivity of interior washer.Therefore, when the magnetic conduction meeting internal washer requires, the overall size of loud speaker can be reduced, be conducive to the miniaturization of speaker product.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail:
Fig. 1 is the plan structure schematic diagram of loud speaker of the present utility model;
Fig. 2 be loud speaker of the present utility model look up structural representation;
Fig. 3 is the main TV structure schematic diagram of loud speaker of the present utility model;
Fig. 4 be Fig. 1 along A-A to cross-sectional schematic;
Fig. 5 is the detonation configuration schematic diagram of loud speaker of the present utility model;
In figure: 1, shell; 2, magnetic conductive board; 3, centring disk; 31, ring frame; 32, elasticity arm; 33, annular inside casing; 34, flange; 4, vibrating diaphragm; 41, diaphragm; 42, ring; 5, stiffener; 6, external magnet; 7, internal magnet; 8, outer washer; 81, lug boss; 82, buffer part; 83, flat part; 9, interior washer; 91, depressed part; 10, voice coil loudspeaker voice coil; 11, protecgulum.
Embodiment
Fig. 1 is the plan structure schematic diagram of loud speaker of the present utility model; Fig. 2 be loud speaker of the present utility model look up structural representation; Fig. 3 is the main TV structure schematic diagram of loud speaker of the present utility model; Fig. 4 be Fig. 1 along A-A to cross-sectional schematic; Fig. 5 is the detonation configuration schematic diagram of loud speaker of the present utility model.
With reference to accompanying drawing 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, a kind of loud speaker, comprises shell 1 and protecgulum 11, contains vibrational system and magnetic circuit system in the cavity that shell 1 and protecgulum 11 surround.
Wherein, the voice coil loudspeaker voice coil 10 that vibrational system comprises vibrating diaphragm 4 and combines with vibrating diaphragm 4, the ring 42 that vibrating diaphragm 4 comprises diaphragm 41 and arranges along the periphery of diaphragm 41, diaphragm 41 is the circulus of hollow.The middle vacancy of diaphragm 41 is installed with stiffener 5.
Centring disk 3 is fixedly connected with between vibrating diaphragm 4 and shell 1, magnetic circuit system comprises and is fixed on internal magnet 7 on magnetic conductive board 2 and interior washer 9 successively, the outside of internal magnet 7 and interior washer 9 is surrounded with external magnet 6 and outer washer 8, ring 42 for cross section be the circulus of curved surface shaped, ring 42 bends towards the magnetic circuit system of inside loudspeakers, the outer washer 8 of ring-type comprises the lug boss 81 just arranged to diaphragm 41 and towards diaphragm 41 projection, and the flat part 83 that corresponding ring 42 is arranged, buffer part 82 is connected with between lug boss 81 and flat part 83, the thickness of lug boss 81 is greater than the thickness of flat part 83.Lug boss 81, buffer part 82 and the integrated molding structure of flat part 83.Pass through said structure, the structure that the curved surface making outer washer 8 adapt to ring 42 bends to the magnetic circuit system towards inside loudspeakers, outer washer 8 is arranged to lug boss 81, buffer part 82 and flat part 83 that one connects, the thickness of lug boss 81 is made to be greater than the thickness of flat part 83, lug boss 81 is protruding to diaphragm 41 direction, with when meeting diaphragm 41, oscillation space between ring 42 and outer washer 8, take full advantage of the space between vibrating diaphragm 4 and outer washer 8, improve space availability ratio, increase the magnetic conductivity of outer washer 8.Therefore, when the magnetic conduction meeting external washer 8 requires, the overall size of loud speaker can be reduced, be conducive to the miniaturization of speaker product.
On shell 1, injection moulding is provided with electric-conductor (not shown), and electric-conductor is electrically connected with centring disk 3, and centring disk 3 is electrically connected with the voice coil leads of voice coil loudspeaker voice coil 10, centring disk 3 is provided with for going between the pad be electrically connected with voice coil loudspeaker voice coil 10.In the present embodiment, centring disk 3 comprise annular inside casing 33, with the hard-wired ring frame of shell 1 31 of loud speaker and at least two elasticity arms be oppositely arranged 32 being connected ring frame 31 and annular inside casing 33.The inwall of the annular inside casing 33 of centring disk 3 is provided with two flanges be oppositely arranged 34, and pad is arranged on flange 34.
The corresponding pad place, both sides of interior washer 9 is respectively arranged with depressed part 91, loud speaker in the present embodiment is by this structure of interior washer 9, make interior washer 9 when meeting centring disk 3 and the oscillation space between pad and interior washer 9 thereof, take full advantage of the oscillation space between centring disk 3 and interior washer 9, improve space availability ratio, increase the magnetic conductivity of interior washer 9.Therefore, when the magnetic conduction meeting internal washer 9 requires, the overall size of loud speaker can be reduced, be conducive to the miniaturization of speaker product.
The above is the citing of the utility model preferred forms, and the part wherein do not addressed in detail is the common practise of those of ordinary skill in the art.Protection range of the present utility model is as the criterion with the content of claim, and any equivalent transformation carried out based on technology enlightenment of the present utility model, also within protection range of the present utility model.

Claims (9)

1. a loud speaker, comprise magnetic circuit system, vibrational system and the shell for holding described magnetic circuit system and described vibrational system, wherein, the voice coil loudspeaker voice coil that described vibrational system comprises vibrating diaphragm and combines with described vibrating diaphragm, centring disk is fixedly connected with between described vibrating diaphragm and described shell, the ring that described vibrating diaphragm comprises diaphragm and arranges along described diaphragm periphery, the circulus of described ring to be cross section be curved surface shaped; Described magnetic circuit system comprises and is fixed on internal magnet on magnetic conductive board and interior washer successively, the outside of described internal magnet and described interior washer is surrounded with external magnet and outer washer, it is characterized in that: described ring bends towards the magnetic circuit system of inside loudspeakers, the outer washer of described ring-type comprises the flat part just arranged to described diaphragm and towards lug boss and the corresponding described ring of the setting of described diaphragm projection, and the thickness of described lug boss is greater than the thickness of described flat part.
2. loud speaker as claimed in claim 1, is characterized in that: be connected with buffer part between described lug boss and described flat part.
3. loud speaker as claimed in claim 2, is characterized in that: described lug boss, described buffer part and the integrated molding structure of described flat part.
4. loud speaker as claimed in claim 1, it is characterized in that: on described shell, injection moulding is provided with electric-conductor, described electric-conductor is electrically connected with described centring disk, described centring disk is electrically connected with the voice coil leads of described voice coil loudspeaker voice coil, described centring disk is provided with the pad for being electrically connected with described voice coil leads.
5. loud speaker as claimed in claim 4, is characterized in that: described centring disk comprise annular inside casing, with the hard-wired ring frame of the shell of loud speaker and at least two elasticity arms be oppositely arranged being connected described ring frame and described annular inside casing.
6. loud speaker as claimed in claim 5, is characterized in that: the inwall of the annular inside casing of described centring disk is provided with two flanges be oppositely arranged, and described pad is arranged on described flange.
7. loud speaker as claimed in claim 6, is characterized in that: cave in respectively and be provided with depressed part in the corresponding described pad place, both sides of described interior washer.
8. the loud speaker as described in any one of claim 1 to 7, is characterized in that: described diaphragm is the circulus of hollow.
9. loud speaker as claimed in claim 8, is characterized in that: the middle vacancy of described diaphragm is installed with stiffener.
CN201420574510.5U 2014-09-30 2014-09-30 A kind of loud speaker Active CN204131721U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420574510.5U CN204131721U (en) 2014-09-30 2014-09-30 A kind of loud speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420574510.5U CN204131721U (en) 2014-09-30 2014-09-30 A kind of loud speaker

Publications (1)

Publication Number Publication Date
CN204131721U true CN204131721U (en) 2015-01-28

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Family Applications (1)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105828246A (en) * 2016-05-19 2016-08-03 青岛歌尔声学科技有限公司 Woofer
WO2016169254A1 (en) * 2015-04-22 2016-10-27 歌尔声学股份有限公司 Speaker device
WO2016197535A1 (en) * 2015-06-09 2016-12-15 歌尔声学股份有限公司 Speaker device
CN110933570A (en) * 2019-12-13 2020-03-27 歌尔股份有限公司 Sound production device and electronic equipment

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016169254A1 (en) * 2015-04-22 2016-10-27 歌尔声学股份有限公司 Speaker device
US10237661B2 (en) 2015-04-22 2019-03-19 Goertek, Inc. Speaker device
WO2016197535A1 (en) * 2015-06-09 2016-12-15 歌尔声学股份有限公司 Speaker device
CN105828246A (en) * 2016-05-19 2016-08-03 青岛歌尔声学科技有限公司 Woofer
CN105828246B (en) * 2016-05-19 2019-04-02 青岛歌尔声学科技有限公司 A kind of woofer
CN110933570A (en) * 2019-12-13 2020-03-27 歌尔股份有限公司 Sound production device and electronic equipment

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GR01 Patent grant
C14 Grant of patent or utility model
CP01 Change in the name or title of a patent holder

Address after: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268

Patentee after: Goertek Inc.

Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268

Patentee before: Goertek Inc.

C56 Change in the name or address of the patentee