CN101316458A - Vibrating body for audio converter and loudspeaker device - Google Patents
Vibrating body for audio converter and loudspeaker device Download PDFInfo
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- CN101316458A CN101316458A CNA200710104684XA CN200710104684A CN101316458A CN 101316458 A CN101316458 A CN 101316458A CN A200710104684X A CNA200710104684X A CN A200710104684XA CN 200710104684 A CN200710104684 A CN 200710104684A CN 101316458 A CN101316458 A CN 101316458A
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- oscillating plate
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Abstract
The invention provides a vibrating body used in an audio converter and a speaker device; wherein, the vibrating body used in an audio converter can restrain phenomena of rolling, separation vibration (separation resonance), etc., to obtain good timbre. The disclosed vibrating body used in the audio converter is provided with a vibrating board (1) that is arranged with a voice coil frame (3) at the internal peripheral rim, and an edge (2) on the external peripheral rim. A reinforcing part (6) is formed successively between the internal peripheral rim of the vibrating board (1) and the external peripheral rim of the edge (2).
Description
Technical field
The present invention relates to be suitable for vibrating body for audio converter that in the speaker unit that for example is installed on portable phone, portable broadcast receiver or PDA mobile electronic apparatus such as (Personal Digital Assistant, personal digital assistants), uses and speaker unit with this vibrating body for audio converter.
Background technology
Mobile electronic apparatus such as portable phone, portable broadcast receiver or PDA, in order to carry purpose to equipment integral requirement miniaturization, thin typeization.Therefore also have requirements such as thin typeization, miniaturization for the speaker unit that is used for such mancarried electronic aid.In addition, speaker unit requires to reduce lowest resonant frequency f in order to obtain the low distortion acoustic characteristic on the frequency band of broad usually
0
In order to tackle above-mentioned thin typeization, miniaturization requirement, can make by voice coil loudspeaker voice coil (voice coil) being applied the signal of telecommunication to produce vibration and send the oscillating plate of sound wave and be installed on the weight saving that this oscillating plate periphery supports the edge etc. of this oscillating plate to speaker unit.The thickness that for example reduces oscillating plate or edge etc. then can make the weight saving at oscillating plate or edge etc.
But, if reduce the thickness at oscillating plate or edge etc. then easy deformation and must cause rigidity to reduce.Here so-called rigidity is meant the physical quantity that is difficult to deformation extent about structure.If reduced the rigidity at oscillating plate or edge etc. would roll easily (rolling) phenomenon with separate vibration (separation resonance) etc., cause subsidiary sound to increase thus or produce unusual sound and audio distortion and can't obtain good sound quality.
Here so-called rolling phenomenon is meant that the vibrational system of speaker unit is according to the signal of telecommunication that puts on voice coil loudspeaker voice coil, not that sender at sound wave moves up and down on (voice coil loudspeaker voice coil direction of vibration) point-blank, but to the phenomenon of vibrating to the direction of the direction of approximate vertical or inclination with respect to the sender of sound.In addition, so-called separation vibration (separation resonance) is meant the phenomenon that makes each self-excited oscillation of oscillating plate various piece along with the oscillating plate bending.In addition, the so-called resonance that separates is meant following phenomenon, promptly, the vibration of the amplitude motion of sound ring frame (Voice Coil Bobbin) is propagated to the periphery concentric circles from the central part of oscillating plate, after edge reflections from the periphery of oscillating plate during to the central part backpropagation, propagate and the new vibration that comes produces and interferes and produce resonance by the vibration of this edge reflections with from sound ring frame.
Therefore, constituted the rigidity raising of audio converter with the edge part of oscillating plate, the audio converter oscillating plate that has proposed to have following structure in order to make in the past.That is, this audio converter is in flat shape with oscillating plate and is formed with the vertical section shape on the periphery of the oscillating plate main body of disc-shape roughly and is the roughly edge part of roll shape.On this edge part, a plurality of tangent lines edge that the vertical section shape is the word of falling V shape forms convex with respect to the outer peripheral edges of oscillating plate main body along tangential direction.In addition, on the edge part between the tangent line edge of adjacency, a plurality of reinforcements that the vertical section shape is the word of falling V shape form convex in a circumferential direction, and (for example patent documentation 1.)。Below this technology is called first conventional example.
In addition, in the past in order to make lowest resonant frequency f
0The acoustic characteristic distortion of reduction and inhibition oscillating plate main body is to obtain high quality audio characteristic, the audio converter oscillating plate that has proposed to have following structure.That is, this audio converter oscillating plate is in flat shape and is formed with the vertical section shape on the periphery of the oscillating plate main body of disc-shape roughly and is the roughly edge part of roll shape.On this edge part, a plurality of grooves that the vertical section shape is V word shape form along tangential direction with respect to the outer peripheral edges of oscillating plate main body.In addition, each groove makes end positions come preseting length from the inner periphery and the outer periphery of the edge part predetermined distance of being separated by respectively.In addition, the degree of depth h of each groove is set in the scope of (1/3) H≤h≤(2/3) H with respect to the roller height H of edge part (for example patent documentation 2.)。Below this technology is called second conventional example.
Patent documentation 1: Japanese kokai publication hei 9-224297 communique
Patent documentation 2: TOHKEMY 2005-303775 communique
Above-mentioned first and second conventional examples are formed with tangent line edge or groove on the edge part that constitutes oscillating plate.Therefore, in above-mentioned first and second conventional examples, in the vibrating body for audio converter that constitutes by oscillating plate, edge and sound ring frame, only there is the rigidity of the edge part of oscillating plate to improve.Therefore for vibrating body for audio converter integral body, the poor rigidity between each position increases.
Therefore as a result, because the little position easy deformation of rigidity in the vibrating body for audio converter, cause the rolling phenomenon that should be inhibited originally and separate vibration (separation resonance) etc. easily in other position generation.Therefore in above-mentioned first and second conventional examples, subsidiary sound increases, produces unusual sound and audio distortion and can't obtain good sound quality.
Summary of the invention
The present invention is directed to the problems referred to above and propose, be, the vibrating body for audio converter and the speaker unit that can address these problems are provided as the solution of the above problems purpose.
In order to address the above problem, the vibrating body for audio converter of first aspect, it is characterized in that, this vibrating body for audio converter has at inner peripheral and is provided with sound ring frame and is provided with the oscillating plate at edge in outer peripheral edges, has formed rib continuously between the outer peripheral edges at the described inner peripheral of described oscillating plate and described edge.
And the vibrating body for audio converter of second aspect is characterized in that, in the vibrating body for audio converter of first aspect, described rib is that the center has formed a plurality of in the position that is mutually symmetrical with described sound ring frame.
And, the vibrating body for audio converter of the third aspect, it is characterized in that in the vibrating body for audio converter of first aspect, described rib is that the mode of curved shape forms with the flat shape between the outer peripheral edges at the inner peripheral of described oscillating plate and described edge.
And the vibrating body for audio converter of fourth aspect is characterized in that, in the vibrating body for audio converter of first aspect, described rib has curve part and line part.
And the vibrating body for audio converter of the 5th aspect is characterized in that, in the vibrating body for audio converter of first aspect, surface at described oscillating plate and described edge is formed with groove, is filled with filler in described groove, thereby has formed described rib.
And the vibrating body for audio converter of the 6th aspect is characterized in that, in the vibrating body for audio converter of first aspect, described oscillating plate, described edge and described sound ring frame form as one.
And, the vibrating body for audio converter of the 7th aspect, it is characterized in that, this vibrating body for audio converter has oscillating plate, and between the outer peripheral edges at the periphery of described oscillating plate and edge, formed rib continuously, wherein, described oscillating plate is respectively arranged with sound ring frame and described edge on described periphery, and possesses the bag (pocket) of accommodating voice coil loudspeaker voice coil on described periphery.
And the vibrating body for audio converter of eight aspect is characterized in that, in the vibrating body for audio converter aspect the 7th, described rib is center and formed a plurality of in the position that is mutually symmetrical with described oscillating plate.
And the vibrating body for audio converter of the 9th aspect is characterized in that, in the vibrating body for audio converter aspect the 7th, surface at described edge is formed with groove, at described groove with accommodate in the described bag of described voice coil loudspeaker voice coil and be filled with bonding agent, thereby has formed described rib.
And the vibrating body for audio converter of the tenth aspect is characterized in that, in the vibrating body for audio converter aspect the 7th, described oscillating plate, described edge and described sound ring frame form as one.
And, the speaker unit of the tenth one side, it is characterized in that, this speaker unit has: vibrating body for audio converter, it has oscillating plate, is formed with rib continuously between the outer peripheral edges at the inner peripheral of described oscillating plate and edge, wherein, the described inner peripheral of described oscillating plate is provided with sound ring frame, and outer peripheral edges are provided with described edge; At least the magnetic circuit that has magnet, plate (plate) and yoke (yoke); And framework.
And, the speaker unit of the 12 aspect, it is characterized in that, this speaker unit has: vibrating body for audio converter, it has oscillating plate, is formed with rib continuously between the outer peripheral edges at the periphery of described oscillating plate and edge, wherein, described oscillating plate is respectively arranged with sound ring frame and described edge on described periphery, and possesses the bag of accommodating voice coil loudspeaker voice coil on described periphery; At least the magnetic circuit that has magnet, plate and yoke; And framework.
Description of drawings
Fig. 1 is the front elevation of formation of the vibrating body for audio converter of expression embodiment of the present invention 1.
Fig. 2 is the A-A profile of Fig. 1.
Fig. 3 is the front elevation of formation of the vibrating body for audio converter of expression embodiment of the present invention 2.
Fig. 4 is the front elevation of formation of the vibrating body for audio converter of expression embodiment of the present invention 3.
Fig. 5 is the front elevation of formation of the vibrating body for audio converter of expression embodiment of the present invention 4.
Fig. 6 is that expression has the stereogram that the speaker unit of the vibrating body for audio converter of embodiment of the present invention 5 constitutes.
Fig. 7 is the profile of the formation of expression speaker unit shown in Figure 6.
Fig. 8 is illustrated in the stereogram of having filled filler state before in the bag of the vibrating body for audio converter that constitutes speaker unit shown in Figure 6 and the groove.
Fig. 9 is the profile of formation of the speaker unit of expression state shown in Figure 8.
Symbol description
1,11,42 oscillating plates; 2,44 edges; 3,43 sound ring frames;
4,21,31,45 grooves; 5,22,32,47 fillers;
6,23,33,48 ribs; 6a, 6e, 23a line part;
6b, 6c, 6d, 23b curve part; 7,46 voice coil loudspeaker voice coils;
41 vibrating body for audio converter; The 41a bag; 51 yokes; 52 magnet; 53 plates;
54 magnetic gaps; 55 frameworks; 55a edge installation portion
Embodiment
Fig. 1 is the front elevation of formation of the vibrating body for audio converter of expression embodiment of the present invention 1, and Fig. 2 is the A-A profile of Fig. 1.The vibrating body for audio converter of present embodiment 1 is used for speaker unit that mancarried electronic aids such as portable phone, portable broadcast receiver or PDA install etc.The bore of speaker unit for example is about 2cm～4cm.
In this vibrating body for audio converter, the flat shape of vibrating body 1 is roughly toroidal and the vertical section shape is to the outstanding roughly dome shape of front face side (sound wave sends side).On the outer peripheral edges of this oscillating plate 1, edge 2 is integrally formed with oscillating plate 1.The flat shape at edge 2 is roughly toroidal and the vertical section shape is to the side-prominent roughly roll shape in front.
In addition, on the inner peripheral of oscillating plate 1, it is integrally formed to be sound ring frame 3 roughly cylindraceous and oscillating plate 1.In addition, as shown in Figure 2, be that 2 periphery acies is formed with many grooves 4 continuously respectively up to the edge for the inner peripheral end of oscillating plate 1 through the upper end of sound ring frame 3 from the lower end of sound ring frame 3.Many groove 4 is that the center is formed at the position that is mutually symmetrical on oscillating plate 1 with sound ring frame 3.In the example of Fig. 1, four grooves 4 are that the center forms crosswise with sound ring frame 3.
The section shape of each groove 4 can be arbitrary shape of V word shape, U word shape, rectangular-shaped, zigzag or sinusoidal wave shape.The degree of depth h of each groove 4 is set in (1/3) H≤h≤(2/3) H when 2 height is for H at the edge scope is preferably about H/2.Can effectively reduce lowest resonant frequency f thus
0
More than Shuo Ming oscillating plate 1, edge 2, sound ring frame 3 and many grooves 4 etc. for example form as one by punch forming.Binding resin, synthetic resin film, acrylic acid foaming body and composite material etc. that the silicone impregnated resin of weaving cotton cloth of the materials such as paper of oscillating plate 1, edge 2 and sound ring frame 3, the braid of weaving cotton cloth, use fiber that uses fiber, nonwoven fabrics, use fiber etc. forms.Synthetic resin film for example is made of polypropylene or Merlon etc.The raw material of acrylic acid foaming body for example is methacrylic acid methyl alcohol, methacrylic acid, styrene, anhydrous maleic acid and methacrylic acid acid amides.Composite material for example is made of metals such as synthetic resin such as polypropylene and tungsten.
In each groove 4, be filled with filler 5 respectively and constituted rib 6 respectively.Rib 6 has line part 6a and curve part 6b and 6c.Line part 6a constitutes lower end from sound ring frame 3 near the part the upper end of sound ring frame 3 in rib 6.Curve part 6b has constituted near the part of sound ring frame 3 and the coupling part between the oscillating plate 1 in the rib 6.Curve part 6c has constituted near the part of dome point of the oscillating plate 1 of the roughly dome shape in the rib 6.
As the material of filler 5, UV cured type bonding agent, thermmohardening type bonding agent and epoxy resin etc. are for example arranged.On the outer peripheral face of sound ring frame 3, with adhesive securement voice coil loudspeaker voice coil 7 roughly cylindraceous is arranged as shown in Figure 2.At filler 5 is under the situation of bonding agent, uses the type identical with the bonding agent of fixing voice coil loudspeaker voice coil 7 and can carry out the filling of filler 5 and fixing of voice coil loudspeaker voice coil 7 simultaneously.
On the other hand, though do not illustrate, the outer peripheral edges at edge 2 become smooth flange part, and this smooth flange part constitutes the edge installation portion of the framework that can be fixed in speaker unit.In addition, on the inner peripheral of oscillating plate 1, can pass through the adhesive securement central lid.
Like this, the vibrating body for audio converter of present embodiment 1 has oscillating plate 1, edge 2 and sound ring frame 3.On the outer peripheral edges of oscillating plate 1, edge 2 forms as one with oscillating plate 1.On the other hand, on the inner peripheral of oscillating plate 1, sound ring frame 3 forms as one with oscillating plate 1.In addition, 2 periphery acies has formed many ribs 6 continuously respectively up to the edge from the lower end of sound ring frame 3 through the periphery acies of oscillating plate 1.Therefore, the rigidity at oscillating plate 1 and edge 2 is compared with the past becomes bigger.
In addition, according to present embodiment 1, many ribs 6 from the lower end of sound ring frame 3 through the periphery acies of oscillating plate 1 up to the edge 2 periphery acies and forming respectively.Therefore, edge 2, oscillating plate 1 and sound ring frame 3 are vibrated towards roughly the same direction (direction of vibration of voice coil loudspeaker voice coil 7) one.That is, 2 to oscillating plate 1 and from oscillating plate 1 to sound ring frame 3 from the edge, and rigidity compared with the past is bigger, thus can suppress to roll phenomenon with separate vibration (separation resonance) etc.Can avoid subsidiary sound to increase thus or the generation of unusual sound and audio distortion and obtain good sound quality.
In addition, according to present embodiment 1, many ribs 6 are formed at the position that is mutually symmetrical.Therefore, can realize the weight balancing of vibrating body for audio converter, thus also can suppress to roll phenomenon with separate vibration (separation resonance) etc.
In above-mentioned execution mode 1, the vertical section that shows oscillating plate 1 is shaped as the example to the outstanding roughly dome shape of front face side (sound wave sends side), but is not limited thereto.For example shown in Figure 3, oscillating plate 11 can constitute the vertical section and be shaped as roughly writing board shape.In Fig. 3, omit explanation corresponding to the part mark same-sign of Fig. 2 various piece.Rib 6 has line part 6a and 6e, curve part 6d.Line part 6a constituted in the rib 6 from the lower end of sound ring frame 3 near the part the upper end of sound ring frame 3.Curve part 6d has constituted near the part of sound ring frame 3 and the coupling part between the oscillating plate 11 in the rib 6.Line part 6e constituted in the rib 6 near the coupling part between sound ring frame 3 and the oscillating plate 11 near the part the coupling part oscillating plate 11 and the edge 2.In addition, oscillating plate can constitute the vertical section and be shaped as the conical shaped shape.Under the situation of any structure, can both obtain the effect identical with above-mentioned execution mode 1.
In above-mentioned execution mode 1 and 2, show four grooves 4 and four ribs 6 are that the center forms criss-cross example with sound ring frame 3, but be not limited thereto.For example shown in Figure 4, four grooves 21 are the center with sound ring frame 3, from the inner peripheral of oscillating plate 1 to making flat shape form crooked shape the outer peripheral edges at edge 2.In addition, these four grooves 21 have been filled filler 22 respectively and constituted rib 23 respectively.In Fig. 4, omit explanation corresponding to the part mark same-sign of various piece among Fig. 1.Rib 23 from the inner peripheral of oscillating plate 1 to having line part 23a, curve part 23b the outer peripheral edges at edge 2.Line part 23a constituted in the rib 23 from the inner peripheral of oscillating plate 1 near the crooked part.Curve part 23b constituted the above-mentioned bending in the rib 23 part and near.Can obtain the effect identical according to such structure with above-mentioned execution mode 1.
In above-mentioned execution mode 1 and 2, show four grooves 4 and four ribs 6 are that the center forms criss-cross example with sound ring frame 3, but be not limited thereto.For example shown in Figure 5, groove 31 also can form and begin the roughly vortex shape that increases gradually to diameter between the outer peripheral edges optional position in the inner peripheral optional position from oscillating plate 1.In addition, this groove 31 is filled filler 32 and constituted rib 33.In Fig. 5, omit explanation corresponding to the part mark same-sign of Fig. 1 various piece.Can obtain the effect identical according to this structure with above-mentioned execution mode 1.
Fig. 6 is the stereogram of formation of the speaker unit of the vibrating body for audio converter 41 of expression with embodiment of the present invention 5, and Fig. 7 is the profile of the formation of expression speaker unit shown in Figure 6.Fig. 8 is illustrated in the stereogram of having filled the state before the filler 47 in the bag 41a of the vibrating body for audio converter 41 that constitutes speaker unit shown in Figure 6 and the groove 45, and Fig. 9 is the profile of formation of the speaker unit of expression state shown in Figure 8.
Speaker unit with vibrating body for audio converter 41 of present embodiment 5 is installed on the mobile electronic apparatus such as portable phone, portable broadcast receiver or PDA.The bore of speaker unit for example is about 2cm～4cm.
In this vibrating body for audio converter 41, the flat shape of oscillating plate 42 is roughly disc-shape and the vertical section shape is towards the outstanding roughly dome shape of front face side (sound wave sends side).On the periphery of this oscillating plate 42, be sound ring frame 43 roughly cylindraceous and form as one with oscillating plate 42.Sound ring frame 43 forms as one with edge 44 across the bag 41a that is toroidal roughly.The flat shape at edge 44 is roughly toroidal and the vertical section shape is the roughly roll shape side-prominent towards the front.In bag 41a, accommodate and be voice coil loudspeaker voice coil 46 roughly cylindraceous, and constitute and to fix by bonding agent.That is, this vibrating body for audio converter 41 is called as the pocket type vibrating membrane.
In addition, as Fig. 6 and shown in Figure 8,44 inner peripheral end has formed many grooves 45 respectively continuously to the periphery acies from the edge.Many groove 45 is that the center is formed at the position that is mutually symmetrical on edge 44 with oscillating plate 42.The section shape of each groove 45 can be arbitrary shape of V word shape, U word shape, rectangular-shaped, zigzag or sine wave.When the degree of depth h of each groove 45 is H when the height of the roller at edge 44, is set in the scope of (1/3) H≤h≤(2/3) H and is preferably about H/2.Can effectively reduce lowest resonant frequency f thus
0
More than Shuo Ming oscillating plate 42, sound ring frame 43, edge 44 and many grooves 45 for example form as one by punch forming.Binding resin, synthetic resin film, acrylic acid foaming body and the composite material etc. that for example have the silicone impregnated resin of weaving cotton cloth etc. of paper, the braid of weaving cotton cloth, use fiber that uses fiber, nonwoven fabrics, use fiber to form as the material at oscillating plate 42, sound ring frame 43 and edge 44.Synthetic resin film for example is made of polypropylene or Merlon etc.The raw material of acrylic acid foaming body for example is methacrylic acid methyl alcohol, methacrylic acid, styrene, anhydrous maleic acid and methacrylic acid acid amides.Composite material for example is made of metals such as synthetic resin such as polypropylene and tungsten.
In each groove 45, be filled with filler 47 respectively and constituted rib 48 respectively.As the material of filler 47, UV cured type bonding agent, thermmohardening type bonding agent and epoxy resin etc. are for example arranged.At filler 47 is under the situation of bonding agent, uses the type identical with the bonding agent of fixing voice coil loudspeaker voice coil 46 and can carry out the filling of filler 47 and fixing of voice coil loudspeaker voice coil 46 simultaneously.
Structure to the speaker unit of vibrating body for audio converter 41 with above explanation describes below.In this speaker unit, fixed magnet 52 and plate 53 in turn in the substantial middle portion on be the yoke 51 that the round-ended cylinder shape is arranged.Magnet 52 and plate 53 form magnetic gap 54 and fix between the inner peripheral surface of the outer peripheral face of plate 53 and yoke 51.In addition, on the framework 55 of the open end side that is arranged at above-mentioned yoke 51, the outer peripheral edges that constitute the edge 44 of vibrating body for audio converter 41 on the edge of its outer peripheral edges installation portion 55a, have been fixed.
In the speaker unit of above explanation, the magnetic circuit that is made of yoke 51, magnet 52 and plate 53 etc. makes flux concentrating in magnetic gap 54, when to being disposed at voice coil loudspeaker voice coil 46 in this magnetic flux when applying the signal of telecommunication, voice coil loudspeaker voice coil 46 is according to the approximate centre direction of principal axis vibration of the signal of telecommunication that is applied towards speaker unit.Vibration by this voice coil loudspeaker voice coil 46 drives oscillating plate 42 and sounds.
Like this, the vibrating body for audio converter 41 of present embodiment 5 has oscillating plate 42, sound ring frame 43 and edge 44.On the periphery of oscillating plate 42, sound ring frame 43 forms as one with oscillating plate 42.On the other hand, sound ring frame 43 forms as one across bag 41a and edge 44.In addition, 44 inner peripheral end has formed many ribs 48 respectively continuously to the periphery acies from the edge.Therefore, the rigidity at edge 44 is compared with the past becomes bigger.
In addition, according to present embodiment 5, oscillating plate 42, sound ring frame 43, edge 44 and voice coil loudspeaker voice coil 46 are fixing and integrated by filler 47.Therefore oscillating plate 42, sound ring frame 43 and edge 44 are vibrated towards roughly the same direction (direction of vibration of voice coil loudspeaker voice coil 46) one.That is, 44 to oscillating plate 42 and sound ring frame 43 from the edge, and rigidity compared with the past becomes bigger, thus can suppress to roll phenomenon with separate vibration (separation resonance) etc.Can avoid the increase of subsidiary sound thus, and suppress the generation of unusual sound and audio distortion and obtain good sound quality.
In addition, according to present embodiment 5, many ribs 48 are formed at the position that is mutually symmetrical.Therefore can realize the weight balancing of vibrating body for audio converter 41, thus also can suppress to roll phenomenon with separate vibration (separation resonance) etc.In addition, by forming many ribs 48, the rigidity of vibrating body for audio converter 41 is improved, thereby under the situation that damper is not set, can vibrate.The miniaturization and the thin typeization that can realize speaker unit owing to do not need damper is set like this.
Abovely embodiment of the present invention is had been described in detail, but concrete structure is not limited to these execution modes, all is contained in the present invention not breaking away from the design alteration that the present invention wants to carry out in the point range with reference to accompanying drawing.
For example in above-mentioned execution mode 1～4, only show the formation of vibrating body for audio converter, but be not limited thereto.The vibrating body for audio converter of above-mentioned execution mode 1～4 similarly can be applicable to speaker unit with above-mentioned execution mode 5.Also can replace Fig. 6～vibrating body for audio converter 41 shown in Figure 9 and adopt Fig. 1～vibrating body for audio converter shown in Figure 5 this moment.
In addition, in above-mentioned each execution mode, show groove 4,21,31 and 45 and all be four example, but be not limited thereto, groove 4,21,31 and 45 bar number are arbitrarily.In addition, in above-mentioned each execution mode, show the example that groove 4,21,31 and 45 all forms on oscillating plate 1,11 or 42, but be not limited thereto.Groove 4,21,31 and 45 also can be formed at oscillating plate 1,11 or 42 below.In addition, vibrating body for audio converter 41 is considered its weight balancings and for example equal angles form odd number bar rib 48 (diagram slightly) at interval.According to such structure, can suppress the generation of the separation vibration (separation resonance) on the rib 48.
In addition, in above-mentioned execution mode 5, show the example of the flat shape of groove 45, but be not limited thereto for Fig. 6 and shape shown in Figure 8.The flat shape of groove 45 can be arbitrary flat shape in groove 4 for example shown in Figure 1, groove 21 shown in Figure 4 or the groove 31 shown in Figure 5.In addition, in above-mentioned each execution mode, show the example that applies the present invention to speaker unit, but be not limited thereto.The present invention also can be used for microphone.
In addition, above-mentioned each execution mode is not as long as its purpose and formation etc. have the special contradiction then can general technology each other.
Claims (12)
1. a vibrating body for audio converter is characterized in that,
This vibrating body for audio converter has at inner peripheral and is provided with sound ring frame and is provided with the oscillating plate at edge in outer peripheral edges,
Between the outer peripheral edges at the described inner peripheral of described oscillating plate and described edge, formed rib continuously.
2. vibrating body for audio converter according to claim 1 is characterized in that,
Described rib is that the center has formed a plurality of in the position that is mutually symmetrical with described sound ring frame.
3. vibrating body for audio converter according to claim 1 is characterized in that,
Described rib between the outer peripheral edges at the inner peripheral of described oscillating plate and described edge is that the mode of curved shape forms with the flat shape.
4. vibrating body for audio converter according to claim 1 is characterized in that,
Described rib has curve part and line part.
5. vibrating body for audio converter according to claim 1 is characterized in that,
Surface at described oscillating plate and described edge is formed with groove, is filled with filler in described groove, thereby has formed described rib.
6. vibrating body for audio converter according to claim 1 is characterized in that,
Described oscillating plate, described edge and described sound ring frame form as one.
7. a vibrating body for audio converter is characterized in that,
This vibrating body for audio converter has oscillating plate, and between the outer peripheral edges at the periphery of described oscillating plate and edge, formed rib continuously, wherein, described oscillating plate is being respectively arranged with sound ring frame and described edge and is possessing the bag of accommodating voice coil loudspeaker voice coil on described periphery on the described periphery.
8. vibrating body for audio converter according to claim 7 is characterized in that,
Described rib is center and formed a plurality of in the position that is mutually symmetrical with described oscillating plate.
9. vibrating body for audio converter according to claim 7 is characterized in that,
Surface at described edge is formed with groove, at described groove with accommodate in the described bag of described voice coil loudspeaker voice coil and be filled with bonding agent, thereby has formed described rib.
10. vibrating body for audio converter according to claim 7 is characterized in that,
Described oscillating plate, described edge and described sound ring frame form as one.
11. a speaker unit is characterized in that, this speaker unit has:
Vibrating body for audio converter, it has oscillating plate, and is formed with rib continuously between the outer peripheral edges at the inner peripheral of described oscillating plate and edge, wherein, the described inner peripheral of described oscillating plate is provided with sound ring frame, and outer peripheral edges are provided with described edge;
At least the magnetic circuit that has magnet, plate and yoke; And
Framework.
12. a speaker unit is characterized in that, this speaker unit has:
Vibrating body for audio converter, it has oscillating plate, and is formed with rib continuously between the outer peripheral edges at the periphery of described oscillating plate and edge, wherein, described oscillating plate is respectively arranged with sound ring frame and described edge on described periphery, and possesses the bag of accommodating voice coil loudspeaker voice coil on described periphery;
At least the magnetic circuit that has magnet, plate and yoke; And
Framework.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710104684XA CN101316458A (en) | 2007-05-29 | 2007-05-29 | Vibrating body for audio converter and loudspeaker device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710104684XA CN101316458A (en) | 2007-05-29 | 2007-05-29 | Vibrating body for audio converter and loudspeaker device |
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| CN101316458A true CN101316458A (en) | 2008-12-03 |
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| CNA200710104684XA Pending CN101316458A (en) | 2007-05-29 | 2007-05-29 | Vibrating body for audio converter and loudspeaker device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102325292A (en) * | 2011-09-01 | 2012-01-18 | 张百良 | Vibrating plate with spiral groove reinforcing structure |
| CN103209372A (en) * | 2012-01-17 | 2013-07-17 | 深圳华宝利电子有限公司 | Collapse-free sound film |
| CN104320743A (en) * | 2009-01-30 | 2015-01-28 | 日本先锋公司 | Small loudspeaker device |
| CN106572416A (en) * | 2016-10-28 | 2017-04-19 | 刘颂东 | Underwater vibration wave outputting and receiving device with low loss and high fidelity |
-
2007
- 2007-05-29 CN CNA200710104684XA patent/CN101316458A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104320743A (en) * | 2009-01-30 | 2015-01-28 | 日本先锋公司 | Small loudspeaker device |
| CN102325292A (en) * | 2011-09-01 | 2012-01-18 | 张百良 | Vibrating plate with spiral groove reinforcing structure |
| CN103209372A (en) * | 2012-01-17 | 2013-07-17 | 深圳华宝利电子有限公司 | Collapse-free sound film |
| CN106572416A (en) * | 2016-10-28 | 2017-04-19 | 刘颂东 | Underwater vibration wave outputting and receiving device with low loss and high fidelity |
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Application publication date: 20081203 |