CN201491211U - Elastic supporting device of vibratory device magnetic circuit system - Google Patents
Elastic supporting device of vibratory device magnetic circuit system Download PDFInfo
- Publication number
- CN201491211U CN201491211U CN2009202252887U CN200920225288U CN201491211U CN 201491211 U CN201491211 U CN 201491211U CN 2009202252887 U CN2009202252887 U CN 2009202252887U CN 200920225288 U CN200920225288 U CN 200920225288U CN 201491211 U CN201491211 U CN 201491211U
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- Prior art keywords
- magnetic circuit
- circuit system
- spring leaf
- supporting unit
- resilient supporting
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Abstract
The utility model provides an elastic supporting device of a vibratory device magnetic circuit system, which comprises an inner bracket and an outer bracket, wherein the outer bracket is sleeved at the periphery of the inner bracket, a spring piece is arranged in a gap between the inner bracket and the outer bracket, the spring piece is arranged along the gap, one end of the spring piece is fixed on the outer edge of the inner bracket, and the other end of the spring piece is fixed on the inner edge of the outer bracket; the elastic supporting device is characterized in that an inner clearance exists between the spring piece and the inner bracket, an outer clearance exists between the spring piece and the outer bracket, and damping glue is coated in the inner clearance. When overlarge voltage causes overlarge vibration amplitude of a miniature vibration device, particularly of a miniature vibration sounder, by adopting the elastic supporting device of the vibratory device magnetic circuit system, the defect of abnormal sound caused by running into a wall is avoided, and the acoustical performance of the miniature vibration sounder is further improved.
Description
Technical field
But the utility model is specifically related to a kind of resilient supporting unit of resonator device magnetic circuit system.
Background technology
Along with the development in portable consumer electronic product market, a large amount of micro-vibration device particularly micro-vibration acoustical generator has obtained using widely.The micro-vibration acoustical generator of traditional structure comprises lid, vibrational system 2, magnetic circuit system 3, shell 6 and is used for the resilient supporting unit 4 of acoustical generator magnetic circuit system 3 as shown in Figure 6 and Figure 7.Lid 1 comprises loam cake 11 and the lower cover 12 that is installed in shell two ends about in the of 6 respectively; Vibrational system comprises vibrating diaphragm 21 and voice coil loudspeaker voice coil 22; Magnetic circuit system comprises washer 31, magnet 32 and the basin frame 33 of assembling from top to bottom; The periphery of the resilient supporting unit 4 of acoustical generator magnetic circuit system is injection-moulded in shell 6 one, and interior week is by being nested on the basin frame 33 in order to support described magnetic circuit system 3.But the micro-vibration acoustical generator of this structure is easy because the excessive magnetic circuit system Oscillation Amplitude that causes of voltage is excessive when vibration, causes magnetic circuit system 3 to produce with lower cover 12 and is rebuffed, and causes the drawbacks such as reduction of different sound generation and acoustical behavior.
In improvement to the micro-vibration acoustical generator of above-mentioned traditional structure, the day for announcing is that the Chinese patent CN200720121318.0 on July 6th, 2007 discloses a kind of improvement project: by be provided with damper element between the upper surface of the lower surface of micro-vibration phonation unit and lower cover, be used to prevent to shake unit bump lower cover.Thisly alleviate the drawbacks such as different sound because of being rebuffed and producing in the micro-vibration microphone device course of work between the upper surface of the lower surface of micro-vibration phonation unit and lower cover, improved the defective of the micro-vibration phonation unit of aforementioned conventional structure to a certain extent by damper element design is set.But this design, the micro-vibration microphone device long period can cause the metal fatigue of resilient supporting unit with the damper element collision, and exist in the collision process of micro-vibration phonation unit and damper element and can not eliminate the defective that produces different sound fully, but this defective is present in other chatter devices equally.But so be necessary to the chatter device of said structure particularly the micro-vibration microphone device be further improved, to avoid above-mentioned harmful effect.
The utility model content
But technical problem to be solved in the utility model provides a kind of resilient supporting unit structure of resonator device magnetic circuit system, but can increase the particularly vibration damping of the resilient supporting unit of the micro-vibration magnetic circuit of loudspeaker of resonator device effectively, thereby be rebuffed because of the excessive generation of amplitude when avoiding the micro-vibration loudspeaker vibration, cause producing the drawback of different sound, improve the acoustical behavior of micro-vibration loud speaker.
For solving the problems of the technologies described above, the technical scheme that the utility model proposed is: but the resilient supporting unit of resonator device magnetic circuit system, the support arm that comprises inner support and sheathed described inner support periphery, be provided with spring leaf in the slit between described inner support and the described support arm, described spring leaf is along described slot placement, one end of described spring leaf is fixed on the outward flange of described inner support, the other end of described spring leaf is fixed on the inward flange of described support arm, it is characterized in that: have internal clearance between described spring leaf and the described inner support, have external series gap between described spring leaf and the described support arm, be covered with damping glue in the described internal clearance.But use the micro-vibration device of the resilient supporting unit of this resonator device magnetic circuit system, in that voltage is excessive when causing the micro-vibration device particularly micro-vibration acoustical generator Oscillation Amplitude is excessive, avoid causing producing the defective of different sound, further improve the acoustical behavior of micro-vibration acoustical generator because of being rebuffed.
As a kind of improvement, described damping glue is for being difficult for solidifying glue.Be difficult for solidifying glue and can keep damping preferably.
As a kind of improvement, described damping glue is a white oil.White oil be difficult for to solidify, and is all stable to acid, light, heat, can better keep the stablizing of resilient supporting unit damping of acoustical generator magnetic circuit system, is the utility model embodiment preferred.
As a kind of improvement, the described internal clearance of all or part of covering of described damping glue.The internal clearance that all covers the formation of described spring leaf and described inner support is the utility model embodiment preferred.
As a kind of improvement, described spring leaf is set to three.The number of spring leaf is three and is the utility model embodiment preferred.
As a kind of improvement, the described support arm in described support arm upper edge stretches out and is provided with stiff end.But this improvement can by with the resilient supporting unit of stiff end and shell one injection moulding realization resonator device magnetic circuit system and fix, technology is comparatively easy.
As a kind of improvement, described stiff end is set to three.The number of stiff end is three can realize fixed effect preferably, is the utility model embodiment preferred.
Owing to adopted technique scheme: but the resilient supporting unit of resonator device magnetic circuit system, the support arm that comprises inner support and sheathed described inner support periphery, be provided with spring leaf in the slit between described inner support and the described support arm, described spring leaf is along described slot placement, one end of described spring leaf is fixed on the outward flange of described inner support, the other end of described spring leaf is fixed on the inward flange of described support arm, it is characterized in that: have internal clearance between described spring leaf and the described inner support, have external series gap between described spring leaf and the described support arm, be covered with damping glue in the described internal clearance.But use the micro-vibration device of the resilient supporting unit of this resonator device magnetic circuit system, in that voltage is excessive when causing the micro-vibration device particularly micro-vibration acoustical generator Oscillation Amplitude is excessive, avoid causing producing the defective of different sound, further improve the acoustical behavior of micro-vibration acoustical generator because of being rebuffed.
Description of drawings
Fig. 1 is the assembling schematic diagram of the utility model embodiment one and micro-vibration acoustical generator;
Fig. 2 is the generalized section of Fig. 1;
Fig. 3 is the structural representation of the utility model embodiment one;
Fig. 4 is the structural representation of the utility model embodiment two;
Fig. 5 is the structural representation of the another kind of form of the utility model embodiment two;
Fig. 6 is the generalized section of micro-vibration acoustical generator in the prior art;
Fig. 7 is the structural representation of minitype acoustic generator resilient supporting unit in the prior art.
Embodiment
Embodiment one:
As Fig. 1, Fig. 2 and shown in Figure 3, but the resonator device of this implementation process is specially the micro-vibration loud speaker, comprises the resilient supporting unit 4 and the housing 6 of lid, vibrational system 2, magnetic circuit system 3, acoustical generator magnetic circuit system.Lid comprises loam cake 11 and the lower cover 12 that is installed in housing two ends about in the of 6 respectively; Vibrational system comprises vibrating diaphragm 21 and the voice coil loudspeaker voice coil 22 that combines with vibrating diaphragm 21; Magnetic circuit system 3 comprises washer 31, magnet 32 and the basin frame 33 of assembling from top to bottom; The periphery of the resilient supporting unit 4 of the micro-vibration magnetic circuit of loudspeaker is circular in the present embodiment, in it week by nested mode combine with described basin frame 33, periphery and shell 6 one injection mouldings one be used from support magnetic circuit system 3; Going back the one design on the shell 6 has a holddown groove 61, and spring 7 can be provided with storing apparatus (indicating) by holddown groove 61 inside and realize fixing and electrical connection.
The resilient supporting unit 4 of the micro-vibration magnetic circuit of loudspeaker, the support arm 43 that comprises the annular of annular inner support 41 and sheathed described inner support 41 peripheries, be provided with spring leaf 42 in the annulus between described inner support 41 and the described support arm 43, described spring leaf 42 is arranged along described annulus, inner support 41 is used for nested with described basin frame 33, with fixing described magnetic circuit system 3; The number of spring leaf 42 is three, and spring leaf 42 comprises inner end 421 and outer end 422, and spring leaf 42 extends along circumferential from the inner end 421 that combines with inner support 41, and inner end 421 links to each other with support arm 43 one with inner support 41 respectively with outer end 422; Has internal clearance between described spring leaf 42 and the described inner support 41, has external series gap between described spring leaf 42 and the described support arm 43, be covered with damping glue 5 in the described internal clearance, adopt in this implementation process damping glue 5 is arranged in the internal clearance that has between described spring leaf 42 and the described inner support 41, and the material of preferred damping glue 5 is difficult curing glue such as white oil.The periphery of support arm 43 also preferably evenly is provided with three and is used for making the fixing fixed part 44 of spring leaf 42 with shell 6 by technologies such as one injection mouldings, fixed part 44 is arranged on the junction of corresponding end 422 and support arm 43, and this structure can guarantee the stability of the resilient supporting unit 4 of acoustical generator magnetic circuit system preferably.
The resilient supporting unit architecture advances of this micro-vibration magnetic circuit of loudspeaker, because the Oscillation Amplitude in resilient supporting unit internal clearance zone is bigger, whitewash wet goods at this and be difficult for solidifying glue, can increase the vibration damping of the resilient supporting unit of acoustical generator magnetic circuit system, when the micro-vibration acoustical generator produces violent oscillatory motion because of voltage is excessive, can avoid the collision of magnetic circuit system and lower cover, thereby avoid producing drawbacks such as different sound, further improve the acoustical behavior of micro-vibration acoustical generator.
Embodiment two:
The implementation case and the difference of the foregoing description one be damping glue that the position is set is different, as Fig. 4 and Fig. 5 institute, damping glue 5 is arranged on the interstitial site that combines with outer end 422 near inner support 41 among Fig. 4; Damping glue is arranged on the interstitial site of inner support 41 and inner end 421 combinations among Fig. 5.In the vibration processes of micro-vibration acoustical generator, want big near the gap area that inner end 421, outer end 422 combine with inner support 41 with respect to the Oscillation Amplitude of support arm 43, so the gap area that only combines with inner support 41 in close inner end 421, outer end 422 of this implementation process is provided with the technique effect that damping glue 5 also can realize above-mentioned implementation process preferably by technologies such as coatings.
In the implementation process of the invention, but the resilient supporting unit advantageous applications of improved resonator device magnetic circuit system in the micro-vibration acoustical generator, the invention is equally applicable to the spring leaf that mini vibrator is answered; Above-mentioned implementation process only is the invention embodiment preferred, damping glue also can be arranged on other position of removing above-mentioned implementation process, but because the external series gap Oscillation Amplitude is very little, it is very little that glue is arranged on the technique effect that external series gap plays, so it is the preferred scheme of the utility model that glue is arranged on internal clearance, all should understand identically during glue is arranged on external series gap and is arranged on external series gap, internal clearance simultaneously, belong to and painstakingly evade the invention with the essence of the invention; The enforcement of the invention also can be applied in other the resilient supporting unit structure of acoustical generator magnetic circuit system, as the support arm periphery is square, inner support and support arm are inc annular, spring leaf and support arm etc. are not integrative-structures, the number of spring leaf is other quantity etc., the neither enforcement that influences the invention.
Claims (7)
1. but the resilient supporting unit of resonator device magnetic circuit system, the support arm that comprises inner support and sheathed described inner support periphery, be provided with spring leaf in the slit between described inner support and the described support arm, described spring leaf is along described slot placement, one end of described spring leaf is fixed on the outward flange of described inner support, the other end of described spring leaf is fixed on the inward flange of described support arm, it is characterized in that: have internal clearance between described spring leaf and the described inner support, have external series gap between described spring leaf and the described support arm, be covered with damping glue in the described internal clearance.
2. but the resilient supporting unit of resonator device magnetic circuit system as claimed in claim 1 is characterized in that: described damping glue is for being difficult for solidifying glue.
3. but the resilient supporting unit of resonator device magnetic circuit system as claimed in claim 1 is characterized in that: described damping glue is a white oil.
4. but the resilient supporting unit of resonator device magnetic circuit system as claimed in claim 3 is characterized in that: the described internal clearance of all or part of covering of described damping glue.
5. but as the resilient supporting unit of claim 1,2,3 or 4 described resonator device magnetic circuit systems, it is characterized in that: described spring leaf is set to three.
6. but the resilient supporting unit of resonator device magnetic circuit system as claimed in claim 5 is characterized in that: the described support arm in described support arm upper edge stretches out and is provided with stiff end.
7. but the resilient supporting unit of resonator device magnetic circuit system as claimed in claim 6 is characterized in that: described stiff end is set to three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202252887U CN201491211U (en) | 2009-08-25 | 2009-08-25 | Elastic supporting device of vibratory device magnetic circuit system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202252887U CN201491211U (en) | 2009-08-25 | 2009-08-25 | Elastic supporting device of vibratory device magnetic circuit system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201491211U true CN201491211U (en) | 2010-05-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202252887U Expired - Lifetime CN201491211U (en) | 2009-08-25 | 2009-08-25 | Elastic supporting device of vibratory device magnetic circuit system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201491211U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105979444A (en) * | 2015-12-11 | 2016-09-28 | 北京航天斯达科技有限公司 | Vibration exciter capable of being installed on structure |
-
2009
- 2009-08-25 CN CN2009202252887U patent/CN201491211U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105979444A (en) * | 2015-12-11 | 2016-09-28 | 北京航天斯达科技有限公司 | Vibration exciter capable of being installed on structure |
| CN105979444B (en) * | 2015-12-11 | 2020-01-14 | 北京航天斯达科技有限公司 | Vibration exciter capable of being installed on structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100526 |