CN201563226U - Ultra-thin moving-coil loudspeaker with reversed dome type vibration diaphragm - Google Patents
Ultra-thin moving-coil loudspeaker with reversed dome type vibration diaphragm Download PDFInfo
- Publication number
- CN201563226U CN201563226U CN2009202013674U CN200920201367U CN201563226U CN 201563226 U CN201563226 U CN 201563226U CN 2009202013674 U CN2009202013674 U CN 2009202013674U CN 200920201367 U CN200920201367 U CN 200920201367U CN 201563226 U CN201563226 U CN 201563226U
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- vibration diaphragm
- voice coil
- yoke
- dome
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Abstract
The utility model relates to the technical field of the acoustic image in the electronic information technology, in particular to an ultra-thin moving-coil loudspeaker with a reversed dome type vibration diaphragm. The ultra-thin moving-coil loudspeaker with the reversed dome type vibration diaphragm comprises a shell, a T-yoke, a magnetic steel, a clamping plate, a voice coil, a vibration diaphragm and a protective shield. The T-yoke is arranged in the shell. The inside of the T-yoke is fixed with the magnetic steel and the clamping plate. The voice coil is arranged in a gap between the magnetic steel and the clamping plate and the T-yoke and leads out the connecting wire. The voice coil is connected with the vibration diaphragm. The protective shield is fixed above the shell and is provided with a plurality of playback holes. A dome of the vibration diaphragm is arranged reversely. The T-yoke is matched with the dome to be a sunken shape. The utility model has the advantages of adopting a forming method that the dome of the vibration diaphragm is hogged reversely (toward the direction of the back of the loudspeaker), coordinately using the innovative structure of the sunken T-yoke, sufficiently utilizing the space between the magnetizer and the dome of the vibration diaphragm and realizing the whole design objective of the ultra-thin miniature loudspeaker under the premise of guaranteeing that the vibrating space and the sound pressure level reach the standard.
Description
Technical field
The utility model relates to acoustic image technical field in the electronic information technology, relates in particular to the ultrathin coil-moving speaker of a kind of reverse ball top vibrating diaphragm.
Background technology
Ultra thin handset, ultra-thin formula portable set, become development today trend, how to allow portable set such as mobile phone do more and more gentlier, more and more thinlyyer, more and more for a short time become pursuing one's goal of each manufacturer, but the contradiction between the stability of the small size of equilibrium product and properties of product how also becomes a problem of each manufacturer of puzzlement.Loud speaker is as one of portable sets such as mobile phone components and parts commonly used, general its vibrating membrane ball of the loud speaker of conventional structure pushes up 1 forward and arches upward, as shown in Figure 1, but the loud speaker volume of this conventional structure is big, can not satisfy light, thin, little equipment machine requirement, how to guarantee having realized ultrathin Microspeaker under loudspeaker vibration space and the sound pressure level prerequisite up to standard, becoming the problem that each manufacturer's urgent need will solve.
The utility model content
The utility model purpose is to provide the ultrathin coil-moving speaker of a kind of reverse ball top vibrating diaphragm, this loud speaker adopts the vibrating membrane ball to push up the forming method of oppositely arch upward (to loud speaker back direction), and be used down the innovation structure of concavity T iron, made full use of the space between magnetic conductor and the vibrating diaphragm ball top, guaranteeing under oscillation space and the sound pressure level prerequisite up to standard, realize the overall design goal of ultrathin (clear height is 2.15mm only) Microspeaker, solved problems of the prior art.
The utility model is to achieve the above object by the following technical programs: the ultrathin coil-moving speaker of a kind of reverse ball top vibrating diaphragm, comprise housing, T iron, magnet steel, clamping plate, voice coil loudspeaker voice coil, vibrating membrane, protective cover, described T iron is arranged in the housing, T iron internal fixation has magnet steel, clamping plate, voice coil loudspeaker voice coil is arranged in the gap between magnet steel and clamping plate and the T iron, and draw wiring, voice coil loudspeaker voice coil is connected with vibrating membrane, the housing upper fixed has protective cover, protective cover is provided with several louvers, and the ball top of described vibrating membrane oppositely is provided with, and T iron is concavity down with it matchingly.
As preferably, described several louvers are one.
As preferably, described several louvers are six.
The beneficial effects of the utility model: the ultrathin coil-moving speaker of this reverse ball top vibrating diaphragm, structurally break through traditional Microspeaker vibrating diaphragm ball top forward and arch upward (to loud speaker protecgulum direction) to form the mentality of designing on rigid ball top, adopt the forming method of oppositely arch upward (to loud speaker back direction), and be used the innovation structure of recessed pole piece (magnetic conductor), made full use of the space between magnetic conductor and the vibrating diaphragm ball top, guaranteeing under oscillation space and the sound pressure level prerequisite up to standard, realizing the overall design goal of ultrathin (clear height is 2.15mm only) Microspeaker.On performance, design and forming method by anti-ball top (to loud speaker back direction), fully guaranteed the rigidity of vibrating diaphragm ball top (the vibration position is cut apart in decision), thereby make product under the situation that free height significantly reduces, whole electroacoustic performance still can reach designing requirement fully, has good complete machine applicability and remarkable economical.
Description of drawings
Fig. 1 is a Microspeaker vibrating diaphragm ball top forward arcuate configuration schematic diagram traditional in the background technology;
Fig. 2 is the structural representation of the ultrathin coil-moving speaker of a kind of reverse ball of the utility model top vibrating diaphragm;
Being designated among the figure:
The vibrating membrane ball top that the 1-forward arches upward; The 2-vibrating membrane; The reverse ball top of 3-vibrating membrane;
The 4-protective cover; The 5-clamping plate; The 6-voice coil loudspeaker voice coil; 7-T iron; The 8-magnet steel; The 9-housing;
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is further described in detail:
As shown in Figure 2, the ultrathin coil-moving speaker of a kind of reverse ball top vibrating diaphragm, by housing 9, T iron 7, magnet steel 8, clamping plate 5, voice coil loudspeaker voice coil 6, vibrating membrane 2, protective cover 4 is formed, described T iron 7 is injection-moulded in the housing 9, T iron 7 internal fixation have magnet steel 9, clamping plate 5, voice coil loudspeaker voice coil 6 is arranged in the gap between magnet steel 8 and clamping plate 5 and the T iron, and draw wiring, and voice coil loudspeaker voice coil 6 is connected with vibrating membrane 2, and the housing upper fixed has protective cover 4, protective cover is provided with a louver, the ball top of described vibrating membrane 2 oppositely is provided with (to loud speaker back direction), presents reverse ball top 3, and T iron 7 is concavity down with it matchingly.Voice coil loudspeaker voice coil 6 draw in the wiring input audio signal time, voice coil loudspeaker voice coil 6 moves, and drives vibrating membrane 2 vibrations and sounding, sound spreads out of from the louver of protective cover.
Because of louver on the protective cover is bigger, account for 21% of protective cover surface area, in actual applications, adopt the method for designing that increases by an Air Filter, get dustproof effect.This Air Filter is the terylene chemical fibre, and circumference adds glue, is convenient to be attached on the protective cover.
The ultrathin coil-moving speaker of the reverse ball top vibrating diaphragm described in the present embodiment is structurally broken through traditional Microspeaker vibrating diaphragm ball top forward and is arched upward (to loud speaker protecgulum direction) to form the mentality of designing on rigid ball top, adopt the forming method of oppositely arch upward (to loud speaker back direction), and be used the innovation structure of recessed pole piece (magnetic conductor), made full use of the space between magnetic conductor and the vibrating diaphragm ball top, guaranteeing under oscillation space and the sound pressure level prerequisite up to standard, realizing the overall design goal of ultrathin (clear height is 2.15mm only) Microspeaker.On performance, design and forming method by anti-ball top (to loud speaker back direction), fully guaranteed the rigidity of vibrating diaphragm ball top (the vibration position is cut apart in decision), thereby make product under the situation that free height significantly reduces, whole electroacoustic performance still can reach designing requirement fully, has good complete machine applicability and remarkable economical.
Above described be specific embodiment of the utility model and the know-why used; if comply with the change that conception of the present utility model is done; when the function that it produced does not exceed spiritual that specification and accompanying drawing contain yet, must belong to protection range of the present utility model.
Claims (3)
1. the ultrathin coil-moving speaker of a reverse ball top vibrating diaphragm, comprise housing (9), T iron (7), magnet steel (8), clamping plate (5), voice coil loudspeaker voice coil (6), vibrating membrane (2), protective cover (4), described T iron (7) is arranged in the housing (9), T iron (7) internal fixation has magnet steel (8), clamping plate (5), voice coil loudspeaker voice coil (6) is arranged in the gap between magnet steel (8) and clamping plate (5) and the T iron (7), and draw wiring, voice coil loudspeaker voice coil (6) is connected with vibrating membrane (2), housing (9) upper fixed has protective cover (4), protective cover (4) is provided with several louvers, the ball top that it is characterized in that described vibrating membrane (2) oppositely is provided with, and T iron (7) is concavity down with it matchingly.
2. the ultrathin coil-moving speaker of a kind of reverse ball according to claim 1 top vibrating diaphragm is characterized in that described several louvers are one.
3. the ultrathin coil-moving speaker of a kind of reverse ball according to claim 1 top vibrating diaphragm is characterized in that described several louvers are six.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202013674U CN201563226U (en) | 2009-12-03 | 2009-12-03 | Ultra-thin moving-coil loudspeaker with reversed dome type vibration diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202013674U CN201563226U (en) | 2009-12-03 | 2009-12-03 | Ultra-thin moving-coil loudspeaker with reversed dome type vibration diaphragm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201563226U true CN201563226U (en) | 2010-08-25 |
Family
ID=42628375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202013674U Ceased CN201563226U (en) | 2009-12-03 | 2009-12-03 | Ultra-thin moving-coil loudspeaker with reversed dome type vibration diaphragm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201563226U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103814587A (en) * | 2011-05-04 | 2014-05-21 | 达利有限责任公司 | Electromagnetic drive unit |
-
2009
- 2009-12-03 CN CN2009202013674U patent/CN201563226U/en not_active Ceased
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103814587A (en) * | 2011-05-04 | 2014-05-21 | 达利有限责任公司 | Electromagnetic drive unit |
| CN103814587B (en) * | 2011-05-04 | 2017-06-06 | 达利有限责任公司 | Electromagnetic drive unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C35 | Partial or whole invalidation of patent or utility model | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20120425 Decision number of declaring invalidation: 18465 Granted publication date: 20100825 |