CN102883249A - Vibration characteristic adjusting method of multifunctional vibration actuator - Google Patents
Vibration characteristic adjusting method of multifunctional vibration actuator Download PDFInfo
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- CN102883249A CN102883249A CN 201210240816 CN201210240816A CN102883249A CN 102883249 A CN102883249 A CN 102883249A CN 201210240816 CN201210240816 CN 201210240816 CN 201210240816 A CN201210240816 A CN 201210240816A CN 102883249 A CN102883249 A CN 102883249A
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- 238000000034 method Methods 0.000 title abstract description 4
- 230000003534 oscillatory effect Effects 0.000 claims description 23
- 239000000725 suspension Substances 0.000 claims description 23
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 15
- 230000004992 fission Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 4
- 239000003381 stabilizer Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000003116 impacting effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
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Abstract
The invention provides a vibration characteristic adjusting method of a multifunctional vibration actuator, which is easy to realize the integral thinning and keep a vibration characteristic without being limited by a configuration place in a carried installing frame. By employing a structure of cutting a part of a fission counter weight, the reduction in air adhesiveness and the horizontal shaking of a magnetic loop part are prevented, the improvement in durability and the overall reliability improvement are realized. In addition, the thinning structure is used as an entirety and is easy to form, the effect of saving the space in the installing frame body can be achieved.
Description
Technical field
The present invention relates to a kind of multifunctional vibration acting actuator of dynamic structure, this multifunctional vibration acting actuator possesses the magnetic circuit section with magnet and has the oscillating plate of voice coil loudspeaker voice coil, use suspension that above-mentioned magnetic circuit section is supported in the shell, at this outer casing end above-mentioned oscillating plate is set, by the input to above-mentioned voice coil loudspeaker voice coil, the audio playing function that has the generation of the body-sensing vibration that the vibration because of above-mentioned magnetic circuit section causes and cause because of the vibration of above-mentioned oscillating plate.
Background technology
Current, in the mobile communicating equipment take portable phone as representative, be provided with the incoming all announcement function of informing incoming call by audio frequency broadcast and body-sensing vibration to the user.For this mobile communicating equipment, used in recent years to record and narrate below the JP 2001-095076(as patent documentation 1) for representative, undertaken by multifunction oscillatory actuator that above-mentioned audio frequency is play and the mode of vibration generation.
Here, the multifunction oscillatory actuator of above-mentioned patent documentation 1 record is characterised in that, trembles as purpose take the magnetic circuit section that prevents from being provided with magnet when body-sensing vibration occurs horizontal and is provided with stabilizer.And, as the identical structure take the raising vibration characteristics as purpose, disclose following record of JP 2001-293436(and be patent documentation 2) multifunction oscillatory actuator of record, realize the raising of vibration characteristics from the aspect of the air viscosity that acts on the vibration section.
The prior art document
Patent documentation
Patent documentation 1: TOHKEMY 2001-095076 communique
Patent documentation 2: TOHKEMY 2001-293436 communique
Summary of the invention
The problem that invention will solve
As mentioned above, the structure of above-mentioned each patent documentation record is characterised in that, has stablized the movement of the magnetic circuit section when body-sensing vibration occurs.More specifically, the structure of patent documentation 1 record is to obtain this effect by the stabilizer that other establishes, and the structure of patent documentation 2 records to be decay by air viscosity obtain this effect.But, along with the development of the slimming of portable phone, in multifunction oscillatory actuator, also further require the slimming under the state that keeps existing performance in recent years.
For the requirement of above-mentioned slimming, the structure of patent documentation 1 record need to possess the space that stabilizer is set in shell side on it consists of, and therefore has the problem of the slimming that is difficult to realize element integral body.In addition, the structure of patent documentation 2 record reduces to act on the air viscosity of above-mentioned magnetic circuit section by discharge air from through hole.Therefore, when carrying to portable phone, need to open through hole and be configured.
For above-mentioned problem, in the invention of this case record, its purpose is to provide a kind of multifunction oscillatory actuator, is not configured the restriction in place and be easy to realize whole slimming and the maintenance of vibration characteristics in the installation framework of carrying.
Be used for solving the means of problem
To achieve these goals, multifunction oscillatory actuator among the present invention, adopt following dynamic structure as basic structure, namely, carrying out audio frequency by the vibrating diaphragm that is provided with voice coil loudspeaker voice coil plays, the magnetic circuit section that configuration has magnet and counterweight in the shell that is provided with above-mentioned audio frequency broadcast section supports above-mentioned magnetic circuit section by suspension.And, in above-mentioned basic structure, flat shape for the counterweight that arranges in magnetic circuit section, employing is provided with the structure of notch in symmetric position, and the part of the diameter dimension on this flat shape is set as more than 97% of diameter dimension be used to the incorporating section inwall of taking in above-mentioned magnetic circuit section.
And, in the second mode of the present invention, adopt the structure that is provided with the end difference of thickness direction for above-mentioned counterweight.
And, in Third Way of the present invention, consist of above-mentioned counterweight by sheet material being implemented bending machining etc.
And, in cubic formula of the present invention, substitute above-mentioned yoke and above-mentioned counterweight and adopt structure with the integrated yoke of counterweight.
The invention effect
By adopting this structure, the multifunction oscillatory actuator of the present invention's record, the otch amount of the notch that can arrange by the peripheral part in counterweight is regulated the acuity of vibration characteristics.More specifically, by the counterweight more than 97% that is set at diameter dimension be used to the diameter dimension of the inwall of the incorporating section of taking in magnetic circuit section notch is set, can prevent from impacting the plastic deformation that waits the suspension that causes because being applied in, obtain to regulate simultaneously the such effect of Q value of vibration characteristics.
Here, what is called prevents that the effect of above-mentioned suspension plastic deformation from referring to: by the effect that is prevented that by the structure of the diameter dimension that is arranged on the counterweight in the magnetic circuit section having been carried out restriction suspension from can realize with respect to radially plastic deformation.Namely, the structure of the variation of the vibration characteristics that alleviates the plastic deformation of suspension from prior art by stabilizer etc. or allow to cause because of plastic deformation is different, and the structure of this case record adopts the flat shape to counterweight to apply that radially size limits and the structure that prevents the plastic deformation of suspension.
And, for the such effect of Q value of regulating vibration characteristics by notch, the structure of this case record is not only by the otch amount, and the shape by notch, make air viscosity and changes in flow rate in the body-sensing vibration generation, therefore can regulate the Q value from otch amount and this two aspect of kerf.More specifically, the structure of this case record forms following structure, about with the half amplitude Q value of the vibration characteristics of recently calculating of vibration frequency together, regulate air viscosity as the vibration damping composition by the meet the requirements notch of specification of setting, can obtain the Q value as target.Therefore, the structure of this case record is different from the structure of patent documentation 2 records that beginning is recorded and narrated, even also can stably keep vibration characteristics under airtight state.And, utilize notch to reduce the such means of air viscosity by use, when can suppress the weight decline of counterweight and keeping vibratory output, can carry out above-mentioned adjusting.
And, by adopting the second mode of the present invention, on the basis of above-mentioned each effect, can relax the suspension that when body-sensing vibration occurs, is out of shape and the collision of counterweight, prevent the plastic deformation of the suspension that causes because of this collision.By adopting such structure, the structure of this case record not only can prevent the plastic deformation of suspension for the displacement that the footpath makes progress in the structure of slimming, and for the displacement on the thickness direction, also can prevent the plastic deformation of suspension.And the structure of the manner can in the plastic deformation that radially prevents the suspension in magnetic circuit section when vibration with this both direction of thickness direction, therefore have the consumption that suppresses suspension and the effect that realizes long lifetime.
And the Third Way of the application of the invention forms the structure that forms the end difference of counterweight by bending machining.Therefore, can suppress the deviation of the lip-deep flatness of counterweight and overall dimension, and improve counterweight with respect to location and the dimensional accuracy of magnetic circuit section.And the basic structure of this case also can easily be carried out by improving above-mentioned dimensional accuracy in the adjusting as the Q value of purpose.
And, by applicable cubic formula of the present invention, except number of components reduces and assembles accordingly the effect of facilitation, can also obtain by yoke and the integrated weight of magnetic circuit section that makes of counterweight are increased such effect.This be because, gap and tolerance required when yoke and counterweight split are consisted of are set not necessarily, so can guarantee the vibratory output that magnetic circuit section weight causes in the structure of slimming.
As mentioned above, by adopting the structure of this case record, can provide the multifunction oscillatory actuator that is not configured the restriction in place in a kind of installation framework carrying and be easy to realize the maintenance of whole slimming and vibration characteristics.
Description of drawings
Fig. 1 is the stereogram of the multifunction oscillatory actuator that uses in the preferred forms of the present invention.
Fig. 2 is the exploded perspective view of the multifunction oscillatory actuator that uses in the preferred forms of the present invention.
Fig. 3 is the side cross-sectional view along A-A ' of multifunction oscillatory actuator shown in Figure 1.
Fig. 4 is the side cross-sectional view along B-B ' of multifunction oscillatory actuator shown in Figure 1.
Fig. 5 is the stereogram of the counterweight used in the preferred forms of the present invention.
Fig. 6 is the vertical view of the interior counterweight configuration of the cover of presentation graphs 1.
Fig. 7 is the stereogram of the one-piece type counterweight of yoke used in the formation variation of Fig. 1.
Fig. 8 is the side cross-sectional view of the one-piece type counterweight of yoke shown in Figure 7.
Description of reference numerals
1: grid; 2: vibrating diaphragm; 3: voice coil loudspeaker voice coil; 4: shell; 5: suspension; 6: pole piece; 7: magnet; 8: yoke; 9: counterweight; 10: cover; 11: the one-piece type counterweight of yoke; C1: the distance of outer casing bottom and counterweight periphery; C2: the distance of voice coil loudspeaker voice coil and yoke; D1: the peripheral dimension of counterweight; D2: interior all sizes of cover inwall; E: end difference; G: magnetic gap; H: louver; K: notch.
Embodiment
Below, use Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6 represent the preferred forms among the present invention.Fig. 1 illustrates the overall perspective view of the multifunction oscillatory actuator that uses in the present embodiment, Fig. 2 illustrates exploded perspective view, Fig. 3 illustrates the side cross-sectional view in the A-A ' cross section of Fig. 1, Fig. 4 illustrates the side cross-sectional view in the B-B ' cross section of Fig. 1, Fig. 5 illustrates the stereogram of counterweight monomer, and Fig. 6 illustrates the interior counterweight configuration of the cover of Fig. 1.In addition, the A-A ' cross section of Fig. 3 is the side cross-sectional view of not passing through the notch of counterweight, and the B-B ' cross section of Fig. 4 is the side cross-sectional view by the counterweight notch.
By Fig. 1, Fig. 2, Fig. 3 and Fig. 4 as can be known, the multifunction oscillatory actuator that uses in the present embodiment has: audio frequency broadcast section is made of the vibrating diaphragm 2 that voice coil loudspeaker voice coil 3 is installed; The vibration generating unit, the magnetic circuit section that will be made of pole piece 6, magnet 7, yoke 8 and counterweight 9 is supported in shell 4 via suspension 5, this multifunction oscillatory actuator by act between voice coil loudspeaker voice coil 3 and the magnet 7 magnetic force and by audio frequency broadcast section's audio plays and by the vibrative dynamic structure of vibration generating unit.And suspension 5, pole piece 6, yoke 8 are made of magnetic, and magnet 7 is magnetized along thickness direction.And suspension 5 becomes insert-molding in the formation of shell 4.
By adopting this structure, the Mobyneb actuator of this case record can provide with single equipment audio frequency to play and the body-sensing vibration generating function.More specifically, switch in the resonance bands of audio frequency broadcast section and the resonance bands of vibration generating unit by the signal that will be input to voice coil loudspeaker voice coil 3, can provide audio frequency to play and the vibration generating function by above-mentioned single equipment.And in the present embodiment, by the grid 1 that the periphery at vibrating diaphragm 2 arranges, become the structure that can prevent when framework is installed in assembling that vibrating diaphragm 2 from contacting with installation framework inwall.
And by Fig. 3 and Fig. 4 as can be known, the magnetic circuit section of present embodiment record consists of magnetic gap g by suspension 5, yoke 8, magnet 7 and pole piece 6.Therefore, become the structure that suspension 5 is used as the part of the magnetic circuit that consists of magnetic gap g, magnetic circuit section not only can be constituted slim, and the magnetic efficient can keep that voice coil loudspeaker voice coil 3 is disposed at magnetic gap g the time.In addition, be accompanied by the slimming of above-mentioned magnetic circuit section, when can suppress the decline of vibratory output, reduce whole gauge.
And, by Fig. 3, Fig. 4, Fig. 5 and Fig. 6 as can be known, in the structure of present embodiment record, be formed in the counterweight 9 that arranges in the magnetic circuit section by sheet material, become the flat shape that otch k is set in the periphery of counterweight 9.In addition, the peripheral dimension d1 of counterweight is set to more than 97% of interior all size d2 of cover inwall, forms the end difference e of concentric circles on the surface of counterweight.
By using this structure, the multifunction oscillatory actuator of present embodiment record, falling etc. when impacting, can be with the offset qualification of the horizontal direction that produces on the suspension 5 in regime of elastic deformation, can prevent the plastic deformation of the suspension 5 that causes because of the contact between counterweight-suspension by the end difference e that arranges on the counterweight surface.In addition, in the present embodiment, the part configuration that the distance c 1 that employing makes outer casing bottom and counterweight periphery is shorter than the distance c 2 of voice coil loudspeaker voice coil and yoke, when the impact that is subject to direction of vibration, outer casing bottom becomes the formation that prevents the conflict between voice coil loudspeaker voice coil-magnetic circuit section as the retainer of magnetic circuit section is played a role.Except having these a plurality of effects, the structure of this case record can be protected internal structure in the horizontal direction with on this both direction of direction of vibration.
And, in the present embodiment, process counterweight 9 by stamping-out, form above-mentioned end difference e by bending machining.In addition, by counterweight 9 being arranged at the periphery of yoke 8, become the structure that acts on the air viscosity of magnetic circuit section by the counterweight shape adjustment.Therefore, the raising of the dimensional accuracy of the counterweight 9 when being easy to realize making and utilize the adjusting of the air viscosity of counterweight 9 can stably obtain the Q value as target.In addition, can carry out accurately the counterweight periphery with respect to the size of above-mentioned outer casing inner wall set, the mutual location between week-yoke between cover inwall during assembling-counterweight periphery and in the counterweight.
And, as shown in Figure 4, in the present embodiment, the louver h that covers sidewall is arranged on the position identical with the otch k of counterweight.Therefore, the path that the notch k of counterweight can be used as playback, and the air viscosity can obtain above-mentioned vibration and occur the time reduces such effect.And, in the structure of this case record, owing to carrying out the adjusting of air viscosity by notch k, even therefore to be assembled into when installing on the framework louver h blocked, also can keep stable vibration characteristics.
Here, use the stereogram of the one-piece type counterweight of yoke shown in Figure 7 and the side cross-sectional view of the one-piece type counterweight of yoke shown in Figure 8, the yoke 8 of present embodiment record is described with counterweight 9 integrated formation variation.In this variation, yoke 8 consists of as single component with counterweight 9.Therefore, except number of components reduces texts, can also obtain the effect that magnetic circuit is positioned with respect to above-mentioned cover sidewall.
As mentioned above, by using the structure of present embodiment record, can obtain in the installation framework of carrying, not configured the restriction in place, be easy to realize the multifunction oscillatory actuator of the maintenance of whole slimming and vibration characteristics.
Claims (4)
1. the multifunction oscillatory actuator of a dynamic structure, magnetic circuit section is supported in shell via suspension, and wherein, this magnetic circuit section arranges magnet and counterweight consists of in the yoke that is made of magnetic, this multifunction oscillatory actuator is characterised in that
Above-mentioned counterweight has the flat shape that is provided with notch in symmetric position, and the part of the diameter dimension on the flat shape of above-mentioned counterweight is set as more than 97% of diameter dimension be used to the incorporating section inwall of taking in above-mentioned magnetic circuit section.
2. multifunction oscillatory actuator according to claim 1 is characterized in that,
At above-mentioned counterweight formation end difference radially.
3. multifunction oscillatory actuator according to claim 2 is characterized in that,
Above-mentioned counterweight is made of sheet material.
4. multifunction oscillatory actuator according to claim 1 is characterized in that,
Substitute above-mentioned yoke and above-mentioned counterweight and adopt the yoke that consists of with the counterweight one.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-154128 | 2011-07-12 | ||
| JP2011154128 | 2011-07-12 | ||
| JP2012-132583 | 2012-06-12 | ||
| JP2012132583A JP2013038769A (en) | 2011-07-12 | 2012-06-12 | Adjustment method of vibration characteristics in multi-functional vibration actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102883249A true CN102883249A (en) | 2013-01-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210240816 Pending CN102883249A (en) | 2011-07-12 | 2012-07-11 | Vibration characteristic adjusting method of multifunctional vibration actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102883249A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106374713A (en) * | 2016-11-01 | 2017-02-01 | 四川安和精密电子电器有限公司 | Linear vibration motor |
| US11722698B2 (en) | 2016-08-24 | 2023-08-08 | Sony Corporation | Image processing apparatus and image processing method |
-
2012
- 2012-07-11 CN CN 201210240816 patent/CN102883249A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11722698B2 (en) | 2016-08-24 | 2023-08-08 | Sony Corporation | Image processing apparatus and image processing method |
| CN106374713A (en) * | 2016-11-01 | 2017-02-01 | 四川安和精密电子电器有限公司 | Linear vibration motor |
| CN106374713B (en) * | 2016-11-01 | 2019-03-26 | 四川安和精密电子电器有限公司 | A kind of linear vibration motor |
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| C06 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20130116 |