CN1622691A - Loud speaker and method for manufacturing the same - Google Patents
Loud speaker and method for manufacturing the same Download PDFInfo
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- CN1622691A CN1622691A CN 200410097382 CN200410097382A CN1622691A CN 1622691 A CN1622691 A CN 1622691A CN 200410097382 CN200410097382 CN 200410097382 CN 200410097382 A CN200410097382 A CN 200410097382A CN 1622691 A CN1622691 A CN 1622691A
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- framework
- speaker unit
- flange portion
- cup shaped
- shaped yoke
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Abstract
A speaker includes a pot type yoke with a bottom and a main body part, and the frame. The bottom has a mount part, on which a magnet and a plate are mounted. The main body part includes a cylindrical part connected to the bottom, a flange with a prescribed area, and a plurality of projections formed on its upper side. On the other hand, the frame has a flat region being a flat face and a plurality of openings are formed in the flat region so as to be correspondent to the positions of the projections. The plurality of projections are inserted into the plurality of openings of the frame, and the upper ends of the projections are deformed by a caulking tool. Thus, the frame is clamped by the projections deformed by caulking and the upper face of the flange so that the coupling between the pot type yoke and the frame is very high. Thus, the caulking strength between the pot type yoke and the frame can be improved and a heavy magnetic circuit system can be supported in a stable state.
Description
Technical field
The present invention relates to a kind of yoke structure of speaker unit.
Background technology
So far, known various speaker units wherein compress the magnetic circuit system such as yoke on the vibrational system such as framework, to improve the bond strength between vibrational system and the magnetic circuit system.
For example, known a kind of speaker unit, its cylindrical shape yoke compresses on framework by one one (portion) of the outer circumference end of collision cylindrical shape yoke.As the speaker unit of this type, also known a kind of loudspeaker unit is inserted into the opening of framework in the portion that the yoke outer circumference end is formed for compressing, and compresses described portion to amplify in opening, consequently connects yoke and framework.The method is disclosed in the unsettled No.2002-10392 of Japanese patent application.
Also known a kind of speaker unit is inserted on framework the opening that forms reservation shape in a plurality of projectioies that form on the yoke, and yoke is relative with framework rotates, and consequently yoke is fixed to framework.
In addition, the speaker unit of known a kind of resinous framework type, the pin of Xing Chenging is inserted into the fixed area of the framework that is used to compress onboard, so that connecting frame and plate.The method is disclosed in the unsettled No.11-205896 of Japanese patent application.
Yet, under the situation of one one the above-mentioned speaker unit that compresses the yoke outer circumference end on the framework, owing on framework, only compress an one of yoke outer circumference end, so the bond strength between yoke and the framework is not very big.In addition, under the situation of this speaker unit, need special-purpose compressing to use anchor clamps.
Yoke being fixed under the situation of framework, because dither effect, so yoke is with the direction rotation opposite with direction of rotation, and yoke comes off from framework sometimes in the relative rotation with framework of yoke.Therefore, in this speaker unit, be similar to above-mentioned speaker unit, the bond strength between yoke and the framework is not very big.And in this speaker unit, yoke is relative with framework to be rotated owing to needing, and therefore for handwork, the time is essential with making great efforts, and for automated job, special equipment is essential.
Summary of the invention
In order to address the above problem, finished the present invention.An object of the present invention is to provide and a kind ofly can improve speaker unit and the manufacture method thereof that compresses intensity between cup shaped yoke and the framework.
According to an aspect of the present invention, provide a kind of speaker unit, having comprised: magnetic circuit has: magnet; Cup shaped yoke has on it bottom of placing magnet, cylindrical portion from the periphery of bottom extend to magnet above the position, and flange portion extends outwardly from the upper end of cylindrical portion; And be placed on plate on the magnet; And be installed in framework on the flange portion, form projection on wherein on flange portion, and the position of respective protrusions forms opening on framework, and its protrusions is inserted into opening, and under the state of bulging deformation, magnetic circuit is connected to framework.
In above-mentioned speaker unit, form a plurality of projectioies on the flange portion of cup shaped yoke.This projection is inserted into the opening of framework, and under the state of protruding upper end distortion, magnetic circuit is connected to framework.
Therefore, with the peripheral end by the collision yoke, the general purpose speaker device that compresses yoke on framework compares, and in speaker unit of the present invention, cup shaped yoke very firmly is connected with framework.Like this, the intensity that compresses between cup shaped yoke and the framework can be improved, and the stability of heavy magnetic circuit can be kept.
In addition, above-mentioned pressing system also can be applicable to the external magnetic type speaker unit.The external magnetic type speaker unit has a configuration usually, so that is not cup shaped yoke, but plate is connected to framework.As mentioned above, if outside in the magnet type speaker unit, onboard with cup shaped yoke on a plurality of protruding same position place that forms form a plurality of projectioies, then by the projection on the pressure strip, plate can be connected to framework.Thus, generally speaking, framework can be used as standarized component, both has been used for internal magnet type speaker unit, is used for external magnet type speaker unit again, and compresses with anchor clamps (comprise and compress blade) and can be used for both.
In above-mentioned speaker unit mode, can place framework in the projection of upper end distortion and between above the flange portion.Therefore, the projection by flange portion and distortion firmly fixes framework.Thus, the intensity that compresses between cup shaped yoke and the framework can be improved, and the stability of heavy magnetic circuit can be kept.
In the another kind of mode of above-mentioned speaker unit, can interconnect framework and flange portion.Thus, owing to do not have opening between framework and the flange portion, so the bond strength between framework and the flange portion can be made greatlyyer.
In another mode of above-mentioned speaker unit, can on the bottom, be formed for placing the opening that compresses blade and the protruding portion that is used to compress of compression apparatus.According to this mode, for example,, then can accurately place the blade that compresses of compression apparatus in the portion that the projection of cup shaped yoke is used to compress if the projection that is formed for locating on compression apparatus is inserted into this opening.
According to a further aspect in the invention, provide a kind of method of making speaker unit, having comprised: form have flange portion with on flange portion on the process of cup shaped yoke of the projection that forms; And place on flange portion under the state of framework, make the process of bulging deformation by compression apparatus with installation frame on projection.
According to the method for above-mentioned manufacturing speaker unit, at first, make comprise flange portion with on flange portion on the cup shaped yoke of a plurality of projectioies of forming.By using compression apparatus (for example, compress and use anchor clamps), the upper end of the projection that forms on making on flange portion is out of shape.If the mechanism that will be used to locate offers compression apparatus, then can accurately compress above the projection on the portion that is used to compress.Therefore,, make the upper end distortion of projection by compression apparatus if place on flange portion under the state of framework, then can be on flange portion installation frame.In the speaker unit of making by this method, because the bond strength between cup shaped yoke and the framework becomes big, therefore can improve the intensity that compresses between cup shaped yoke and the framework, and can keep the stability of heavy magnetic circuit.
Description of drawings
Figure 1A and Figure 1B are respectively according to the plane graph of the speaker unit of the embodiment of the invention and cutaway view;
Fig. 2 A and Fig. 2 B are respectively rearview and the end views according to the speaker unit of the embodiment of the invention;
Fig. 3 is used to illustrate the block diagram that the signal of telecommunication is provided to the method for speaker unit;
Fig. 4 is the cutaway view that connection status is amplified between cup shaped yoke and the framework;
Fig. 5 A and Fig. 5 B are respectively the plane graph and the cutaway views of cup shaped yoke;
Fig. 6 is the rearview of framework;
Fig. 7 is the FB(flow block) according to the process of the speaker unit method of making the embodiment of the invention;
Fig. 8 A is to be used to illustrate the schematic cross sectional views of making the cup shaped yoke process to Fig. 8 D;
Fig. 9 A is to be used to illustrate the schematic cross sectional views of making the cup shaped yoke process to Fig. 9 C; And
Figure 10 A is the treatment step that is used to illustrate the projection that compresses cup shaped yoke on framework to Figure 10 C.
Embodiment
Hereinafter with reference to accompanying drawing the preferred embodiments of the present invention are described.According to the present invention, use anchor clamps by compressing, on framework, be pressed on each of a plurality of projectioies of forming above the flange portion, and cup shaped yoke is connected to framework.Thus, can improve the intensity that compresses between cup shaped yoke and the framework.
[formation of speaker unit]
Fig. 1 and Fig. 2 schematically show the formation of speaker unit 100 according to an embodiment of the invention.Speaker unit 100 according to present embodiment of the present invention can be suitable as the loud speaker that is installed in the vehicle.Figure 1A is the plane graph of speaker unit 100, and Figure 1B is the sectional drawing of the speaker unit 100 got of the tangent plane line A-A ' in Figure 1A.Fig. 2 A is the back view of speaker unit 100.Fig. 2 B is the side view of the speaker unit 100 seen of the direction of the arrow B in Figure 1A.Hereinafter with reference to accompanying drawing formation of the speaker unit 100 of present embodiment etc. is described.
Shown in Figure 1B, speaker unit 100 as its critical piece, has: vibrational system 10 comprises: framework 8, oscillating plate 1, baffle plate 2, sound ring frame 3 and voice coil loudspeaker voice coil 4; And magnetic circuit system 11, comprising: cup shaped yoke 5, magnet 6 and plate 7; And have other various building blocks.This speaker unit 100 is the speaker units that are commonly referred to as the type of two voice coil-type or two voice coil-type, and can emit big volume.
At first will the building block in the vibrational system 10 be described.
Baffle plate 2 for example adopts the cloth material that is formed with a plurality of corrugated parts to form.In the speaker unit 100 of present embodiment, be provided with a plurality of baffle plates 2, so that support the sound ring frame 3 that is applied in big actuating force movably.The interior Zhou Duan of each baffle plate 2 is fixed in the periphery wall portion of sound ring frame 3, and the outer circumference end of each baffle plate 2 is fixed on the inner face of framework 8.
Sound ring frame 3 has opening and has the general cylindrical shape shape at its downside.Voice coil loudspeaker voice coil 4 is wound on the outside wall surface of bottom of sound ring frame 3.It is opposed that the internal perisporium face of the cup shaped yoke 5 that the periphery wall of the bottom of sound ring frame 3 and upside have opening separates certain intervals.The internal perisporium face of sound ring frame 3 and the periphery wall of annular plate 7 and than this annular plate 7 slightly the periphery wall of circlet shape magnet 6 to separate certain intervals separately opposed.Like this, between the internal perisporium face of the periphery wall of plate 7 and cup shaped yoke 5, form space (magnetic gap 20).
Voice coil loudspeaker voice coil 4 is formed by two independent voice coil loudspeaker voice coil 4a and 4b (referring to Fig. 3).Two pairs of signals of telecommunication in sound channel are imported into two voice coil loudspeaker voice coil 4a and 4b from the amplifier side.For example, as under the situation of L channel loudspeaker, identical L sound channel sound signal is input to two voice coil loudspeaker voice coil 4a and 4b respectively at speaker unit 100.Voice coil loudspeaker voice coil 4 has two and aligns/bear lead terminal, and these lead terminals are electrically connected with two pairs of braided wires 9 respectively in the precalculated position of oscillating plate 1.Each lead terminal of positive side be input L sound channel signal the input terminal of process.Each lead terminal of minus side be input grounding (GND) signal the input terminal of process.
Below will the building block in the magnetic circuit system 11 be described.
Secondly, will describe other various building blocks.
Other various building blocks comprise: dust cap 12, package 13, cushioning members 14, and wiring harness 15.
The function of cushioning members 14 comprises: carry out the function of damping when speaker unit 100 is installed in precalculated position on the motor vehicles, and prevents that external vibration is delivered to the main functions of speaker unit 100.Therefore, vibration-absorptive material, for example sponge material is preferably as the material of cushioning members 14.Cushioning members 14 has the shape of elongated rectangle piece.Single face to cushioning members 14 applies adhesive, perhaps the two sides adhesive tape is attached on the single face of cushioning members 14.Cushioning members 14 has under the annular state being deformed into, by means of adhesive or two sides adhesive tape be adhered to package 13 above.
Secondly, with reference to Fig. 3 the method that the signal of telecommunication is offered speaker unit 100 is sketched.The signal of telecommunication is provided for speaker unit 100 from sound source 30 by amplifier 31 and 32.For example, sound source 30 is corresponding with compact disc (CD) player or minidisk (MD) player.Sound source 30 is monophony, and promptly the sound signal in a left side (L) sound channel or the right side (R) sound channel outputs to the each side (signal S1) in amplifier 31 and 32.For example, as under the situation of L channel loudspeaker, amplifier 31 and 32 will amplify from the L sound channel sound signal of sound source 30 outputs according to predetermined magnification ratio, and institute's amplifying signal is outputed to voice coil loudspeaker voice coil 4a and 4b by braided wire 9 or the like at speaker unit 100.As a result, speaker unit 100 exportable big volumes.
When in above-mentioned speaker unit 100, when the amplifier side was input to wiring harness 15, the signal of telecommunication was provided for voice coil loudspeaker voice coil 4 by the lead terminal of splicing ear 16, braided wire 9 and voice coil loudspeaker voice coil 4 the signal of telecommunication.Thereby, in magnetic gap 20, in voice coil loudspeaker voice coil 4 actuating force takes place, so that oscillating plate 1 is in the direction of principal axis vibration of speaker unit 100.Like this, speaker unit 100 occurs in the sound of the direction propagation of the arrow 50 shown in Figure 1B and Fig. 2 B.
[structure of cup shaped yoke]
Secondly, to Fig. 6, provide the description of cup shaped yoke 5 structures with reference to Fig. 4 with the pressing system that embodies feature of the present invention.Fig. 4 is the cutaway view that area E 1 part shown in Figure 1B is amplified.Fig. 5 A is the plane graph of cup shaped yoke 5.Fig. 5 B is the cutaway view along Fig. 5 A The midsagittal plane line C-C ' observation cup shaped yoke 5.Fig. 6 is the rearview of framework 8.
As shown in Figure 4, cup shaped yoke 5 of the present invention compresses the state that forms a plurality of protruding 52c on it with the anchor clamps (not shown) supported flange 52b of portion with employing and is connected to framework 8.Thereby stably support to form each magnet 6 and plate 7 of magnetic circuit system 11.
Cup shaped yoke 5 has interconnective bottom 51 and main part 52.
Shown in Fig. 5 B, shape anti-phase, general recess that bottom 51 has.Bottom 51 comprises: the placement section 51a that places magnet 6 and plate 7; The opening 51ab that in the placement section 51a of placement section 51a center, forms; And the peripheral end 51b that is connected to cylindrical portion 52a one interior all end 52d of main part 52.Form these ones each other to form bottom 51.The top of placement section 51a is the plane.As shown in Figure 4, the diameter of placement section 51a approximates the diameter of magnet 6 and the diameter of plate 7 greatly.Therefore, on placement section 51a, magnet 6 can stably be placed with plate 7.Magnet 6 and plate 7 by joint element be fixed to placement section 51a above.Compress when accurately compressing the portion that the protruding 52c of cup shaped yoke 5 is used to compress with anchor clamps when adopting on framework 8, opening 51ab is as the hole of placing.When various building blocks connected with the treatment step S4 shown in Fig. 7, opening 51ab was also as located opening.
The protruding 52c that main part 52 comprises cylindrical portion 52a, flange portion 52b and raises up above flange portion 52b.These parts form each other to form main part 52.Cylindrical portion 52a has drum usually.Interior all end 52d are connected to the peripheral end 51b of bottom 51 among the cylindrical portion 52a.Shown in Fig. 4 and 5B, cylindrical portion 52a in one near all end 52d the position extend up near the plate 7 position, and flange portion 52b is to extend outwardly near the direction slave plate 7 perpendicular to cylindrical portion 52a in fact.Flange portion 52b forms the flat shape shown in Fig. 5 A, and has presumptive area, and flange portion 52b above form the plane.Form a plurality of protruding 52c on flange portion 52b, each protruding 52c has columnar shape.
As shown in Figure 6, framework 8 has plane domain 8a, and certain flatness (dotted line region surrounded) wherein is provided, and forms a plurality of opening 8b in plane domain 8a.
Employing compresses the protruding 52c that compresses the cup shaped yoke 5 of above-mentioned arrangement with the anchor clamps (not shown) on framework 8.Thereby make protruding 52c distortion, be clipped in the protruding 52c of distortion at framework 8 and above the flange portion 52b between state under, cup shaped yoke 5 is connected to framework 8.The plane domain 8a of tight contact frame 8 above the flange portion 52b of maintenance cup shaped yoke 5.
Therefore, with the ventional loudspeakers device, for example have the speaker unit comparison that compresses the system of yoke by the peripheral end of collision cup shaped yoke on framework, in speaker unit 100 of the present invention, cup shaped yoke 5 firmly was connected with framework in 80 minutes.Therefore, the intensity that compresses between cup shaped yoke 5 and the framework 8 can be improved, and the stability of heavy magnetic circuit system 11 can be kept.
If pressing system of the present invention is applied to external magnet type speaker unit, then can obtain following effect.In internal magnet type speaker unit 100 of the present invention, as mentioned above, on the flange portion 52b of cup shaped yoke 5, form a plurality of protruding 52c, and on framework 8, compress.Then, cup shaped yoke 5 is connected to framework 8.On the contrary, outside in the magnet type speaker unit, not cup shaped yoke 5 but plate is typically connected to framework.Therefore, if outside in the magnet type speaker unit, onboard with cup shaped yoke 5 on a plurality of protruding 52c same position place that forms form a plurality of projectioies, then, can reliably plate be connected to framework by the projection on the plate of hold-down frame.Thus, generally speaking, framework can be used as standarized component, both has been used to internal magnet type speaker unit, is used to external magnet type speaker unit again, and compresses with anchor clamps (comprise and compress blade) and also can be used for both.
[making the method for speaker unit]
With reference to Fig. 7 the method for making speaker unit 100 is described to Figure 10.Fig. 7 is the FB(flow block) according to the process of making speaker unit 100 methods.Fig. 8 A shows the example of making cup shaped yoke 5 processes to Fig. 8 D and Fig. 9 A to Fig. 9 C.Figure 10 A shows the example (compaction process) that the process of cup shaped yoke 5 is installed on framework 8 to Figure 10 C.At first, make cup shaped yoke 5 (step S1).More particularly, form the main part 52 of cup shaped yoke 5 and make separately, and interconnect, thereby make cup shaped yoke 5 with bottom 51.With reference to Fig. 8 and Fig. 9 this manufacture method is described.
Fig. 8 A has schematically shown the process of making cup shaped yoke 5 bottoms 51.Bottom 51 is by forging the metal base manufacturing such as iron.More particularly, base material 300 is by the shape of the general recess of a plurality of forging steps (P10 is to P12) formation, such as the shape of corresponding bottom 51 in process P14.In step P14, cut off peripheral end 303, and form peripheral end 51b and opening 51ab.Make bottom 51 like this.
Fig. 8 B has schematically shown the process of making the main part 52 of cup shaped yoke 5.Basically, main part 52 is also made by the forging metal base material.More particularly, general cup-shape member 805 (seeing step P24) is formed by base material 800 by a plurality of forging steps (P20 is to P22).In step P24, by forging or, on flange portion 52b, forming protruding 52c (the first protruding manufacture method) by using punch die (die) M1 and the M2 of cover shown in Fig. 8 C or 8D.In step P26, by perforating by punching, the bottom 810 of member 805 is perforated.Thereby the bottom 810 of separating member 805 in the step P26 shown in Fig. 8 B.
After this, in step P28,810 perforated in the bottom (by dotted line 820 indications) process the portion that holds bottom 51 to form.Like this, in the step P28 shown in Fig. 8 B, finish the manufacturing of main part 52.
After this, shown in Fig. 9 B, connect main part of making 52 and the bottom 51 of making.More particularly, punching press cooperates (press-fitted) bottom 51 in main part 52, so that main part 52 one in the peripheral end 51b of all end 52d and bottom 51 abut one another at correspondence position, and the lower end 825 (seeing the step P28 shown in Fig. 8 B) that compresses main part 52 is with solid bottom 51 on main part 52.Make above-mentioned cup shaped yoke 5 like this.
Secondly, will second method that make projection be described.Fig. 9 A shows second method of making protruding 52c.In the method, the punching press perforation step P26 shown in protruding 52c and Fig. 8 B forms synchronously.Fig. 9 A has schematically shown the state of this perforation.With reference to Fig. 9 A, the state of member 805 before removal bottom 810 remains between punch die 73 and the stripper plate 72, and moves stamping machine 71 so that bottom 810 punching presses perforation with the direction of arrow.Thereby protruding 52c is formed simultaneously on the bottom 810 of separating member 805 among the step P26 shown in Fig. 8 B.In second method of above-mentioned manufacturing projection 52c, owing on flange portion 52b, form protruding 52c synchronously with punching press, therefore, shown in Fig. 9 A, on punch die 73, form protruding 73a, and on stripper plate 72, form recess 72a, form thereby make a plurality of protruding 52c when punching press bottom 810 breaks away from member 805, to be engraved on the flange 52b.
Secondly, will third party's method of making projection be described.In making third party's method of protruding 52c, when punching press in main part 52 cooperates bottom 51, form protruding 52c.That is to say, in the step P26 shown in Fig. 8 B, promptly when bottom 810 is stamped disengaging member 805, do not form protruding 52c, and therefore, shown in Fig. 9 C, punching press cooperates before the bottom 51 in main part 52, does not form protruding 52c.Projection 52c cooperates bottom 51 to form synchronously with punching press in main part 52.Therefore, forming by the 3rd manufacture method under the situation of protruding 52c, the punch die 73 that punching press is used constantly in step P26 does not have protruding 73a corresponding shown in Fig. 9 A and recess 72a with stripper plate 72.
Refer again to Fig. 7, the cup shaped yoke of making 5 (step S2) is installed on framework 8.More particularly, at first, shown in Figure 10 A, contact with the plane domain 8a of framework 8 is close mutually above the flange portion 52b of cup shaped yoke 5, follow the protruding 52c of cup shaped yoke 5 to insert among the opening 8b of framework 8.Secondly, shown in Figure 10 A, compress with the position of anchor clamps above cup shaped yoke 5 and move down.In this moves, will compress the opening 51ab that is inserted into cup shaped yoke 5 with the positioning convex 402 of anchor clamps 400, go up facial accurately to place the protruding 52c that is used to compress.Thereby the protruding 52c that is used to compress goes up facial the compress cutter 401 terminal with having awl and contacts mutually.
Afterwards, shown in Figure 10 B,, on framework 8, compress protruding 52c, compress simultaneously with anchor clamps 400 and also move down from the above-mentioned position contacting of carrying out by compressing cutter 401.Secondly, shown in Figure 10 C, compress with anchor clamps 400 and return higher position.In this way, cup shaped yoke 5 is installed on framework 8, and framework 8 is clipped between the protruding 52c of distortion and flange portion 52b top.
Refer again to Fig. 7, in cup shaped yoke 5, hold magnet 6 and plate 7 (step S3).More particularly, place the magnet 6 and plate 7 of one combination, so that below magnet 6, contact mutually above the placement section 51a of the cup shaped yoke of making 5 by joint element, and below the magnet 6 with interfix by joint element above the placement section 51a.At this moment, by using gap measurer (not shown), through the gap (opening) in the magnetic gap 20 of making in whole week between magnet 6 and the cup shaped yoke 5 equably and forming between plate 7 and the cup shaped yoke 5.After this, the various building blocks of other of speaker unit 100 are connected to framework 8 or the like (step S4).Shop drawings 1 and the speaker unit 100 shown in Fig. 2 like this.
Claims (5)
1. a speaker unit (100) comprising:
Magnetic circuit (11) has:
Magnet (6);
Cup shaped yoke (5) has on it bottom (51a) of placing magnet (6), cylindrical portion 52a from the periphery of bottom (51a) extend to magnet (6) above the position, and flange portion (52b) extends outwardly from the upper end of cylindrical portion (52a); And
Plate (7) is placed on the magnet; And
Framework (8) is installed on the flange portion (52b),
Wherein on flange portion (52b), go up and form projection (52c), and upward form opening (8b) in the position of respective protrusions (52c) at framework (8), and
Its protrusions (52c) is inserted in the opening (8b), and under the state of projection (52c) distortion, magnetic circuit (11) is connected to framework (8).
2. speaker unit as claimed in claim 1 (100) wherein keeps framework (8) in the projection (52c) of upper end distortion and between above the flange portion (52b).
3. speaker unit as claimed in claim 1 or 2 (100), its middle frame (8) interconnects with flange portion (52b).
4. as one of any described speaker unit (100) of claim 1 to 3, wherein on bottom (51), be formed for placing the opening that compresses blade (51ab) and the portion that is used for being compressed of compression apparatus by projection (52c).
5. the method for a manufacturing speaker unit (100) comprising:
Formation has flange portion (52b) and the process that goes up the cup shaped yoke (5) of the projection (52c) that forms on flange portion (52b); And
On flange portion (52b), go up under the state of placing framework (8), make projection (52c) distortion to go up the process of installation frame (8) in flange portion (52b) by compression apparatus.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003399224A JP4324452B2 (en) | 2003-11-28 | 2003-11-28 | Speaker device and manufacturing method thereof |
| JP2003399224 | 2003-11-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1622691A true CN1622691A (en) | 2005-06-01 |
Family
ID=34723834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410097382 Pending CN1622691A (en) | 2003-11-28 | 2004-11-29 | Loud speaker and method for manufacturing the same |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4324452B2 (en) |
| CN (1) | CN1622691A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611973A (en) * | 2012-03-30 | 2012-07-25 | 宁波升亚电子有限公司 | Electromagnetic vibration device and manufacturing method of electromagnetic vibration device |
| WO2013143173A1 (en) * | 2012-03-30 | 2013-10-03 | Huang Xinmin | Electromagnetic vibration device and manufacturing method therefor |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102421057B (en) * | 2011-12-16 | 2014-08-13 | 瑞声声学科技(深圳)有限公司 | Method for assembling speaker |
-
2003
- 2003-11-28 JP JP2003399224A patent/JP4324452B2/en not_active Expired - Fee Related
-
2004
- 2004-11-29 CN CN 200410097382 patent/CN1622691A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611973A (en) * | 2012-03-30 | 2012-07-25 | 宁波升亚电子有限公司 | Electromagnetic vibration device and manufacturing method of electromagnetic vibration device |
| WO2013143173A1 (en) * | 2012-03-30 | 2013-10-03 | Huang Xinmin | Electromagnetic vibration device and manufacturing method therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4324452B2 (en) | 2009-09-02 |
| JP2005159985A (en) | 2005-06-16 |
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Open date: 20050601 |