WO2010016208A1 - Speaker, and manufacturing method and manufacturing device therefor - Google Patents
Speaker, and manufacturing method and manufacturing device therefor Download PDFInfo
- Publication number
- WO2010016208A1 WO2010016208A1 PCT/JP2009/003639 JP2009003639W WO2010016208A1 WO 2010016208 A1 WO2010016208 A1 WO 2010016208A1 JP 2009003639 W JP2009003639 W JP 2009003639W WO 2010016208 A1 WO2010016208 A1 WO 2010016208A1
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- WO
- WIPO (PCT)
- Prior art keywords
- yoke
- frame
- guide
- speaker
- voice coil
- Prior art date
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2209/00—Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups
- H04R2209/024—Manufacturing aspects of the magnetic circuit of loudspeaker or microphone transducers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
- H04R31/006—Interconnection of transducer parts
Definitions
- the present invention relates to a speaker used in various audio equipment and video equipment, a manufacturing method thereof, and a manufacturing apparatus thereof.
- ⁇ Parts such as magnetic circuit parts and vibration parts are assembled using different jigs in different processes. Since the voice coil is inserted between the plate and the yoke without using a jig, it is difficult to narrow the gap between the voice coil and the plate or the gap between the voice coil and the yoke. is there. In addition, a speaker for molding these components requires a costly manufacturing apparatus such as a mold.
- the speaker manufacturing apparatus includes first to third guide portions.
- the frame is guided by the first guide portion and placed on the manufacturing apparatus.
- the yoke is guided by the second guide portion to couple the frame and the yoke.
- the plate to which the magnet is joined is guided by the second guide portion to couple the magnet and the yoke.
- the voice coil is guided by the third guide portion, and the voice coil is placed on the manufacturing apparatus. Connect the voice coil and the diaphragm. Connect the frame and the diaphragm. Thereafter, the frame, yoke, plate, magnet, voice coil, and diaphragm are extracted from the manufacturing apparatus.
- This manufacturing method can narrow the gap between the speaker plate and the yoke, can manufacture the speaker with a good yield, and can reduce the manufacturing cost.
- FIG. 4A is a top view of the yoke of the speaker according to Embodiment 1.
- FIG. 4B is a side view of the yoke shown in FIG. 4A.
- 4C is a front view of the yoke shown in FIG. 4A.
- FIG. 5A is a top view of the speaker plate according to Embodiment 1.
- FIG. 5B is a side view of the plate shown in FIG. 5A.
- FIG. 5C is a front view of the plate shown in FIG. 5A.
- 6A is a top view of the voice coil of the speaker according to Embodiment 1.
- FIG. 6B is a side view of the voice coil shown in FIG. 6A.
- 6C is a front view of the voice coil shown in FIG. 6A.
- FIG. 7 is a top view of the diaphragm of the speaker according to the first embodiment.
- 8A is a top view of the protector of the speaker according to Embodiment 1.
- FIG. 8B is a side view of the protector shown in FIG. 8A.
- FIG. 8C is a front view of the protector shown in FIG. 8A.
- 9A is a top view of the speaker manufacturing apparatus according to Embodiment 1.
- FIG. 9B is a side view of the manufacturing apparatus shown in FIG. 9A.
- FIG. 9C is a front view of the manufacturing apparatus shown in FIG. 9A.
- FIG. 9A is a top view of the speaker manufacturing apparatus according to Embodiment 1.
- FIG. 9B is a side view of the manufacturing apparatus shown in FIG. 9A.
- FIG. 9C is a front view of the manufacturing
- FIG. 10 is a top view of the manufacturing apparatus shown in FIG. 9A.
- FIG. 11 is an enlarged view of the manufacturing apparatus shown in FIG. 9A.
- FIG. 12 is a top view of the yoke of the speaker according to Embodiment 2 of the present invention.
- FIG. 13 is a top view of a speaker plate according to the second embodiment.
- FIG. 14A is a top view of the speaker manufacturing apparatus according to the second embodiment.
- 14B is a front view of the manufacturing apparatus shown in FIG. 14A.
- FIG. 15 is an exploded perspective view of the speaker according to the third embodiment.
- 16A is a top view of the manufacturing apparatus shown in FIG. 16B is a side view of the manufacturing apparatus shown in FIG. 16C is a front view of the manufacturing apparatus shown in FIG.
- FIG. 17 is an enlarged view of the manufacturing apparatus shown in FIG. 16A.
- 18 is an enlarged view of the manufacturing apparatus shown in FIG. 16A.
- FIG. 1A is an exploded perspective view of a speaker 1 according to Embodiment 1 of the present invention.
- FIG. 1B is a cross-sectional view of the main part of the speaker 1.
- the speaker 1 includes a frame 2, a yoke 3, a magnet 4, a plate 5, a voice coil 6, a diaphragm 7, and a protector 8.
- the yoke 3 is mounted in the frame 2.
- the lower surface of the magnet 4 is bonded onto the yoke 3, and the lower surface of the plate 5 is bonded to the upper surface of the magnet 4.
- a jig 10 that is a manufacturing apparatus for manufacturing the speaker 1 includes a pedestal 100 ⁇ / b> A having a mounting surface 100 and mounting portions 11 and 12 provided on the mounting surface 100. Each component of the speaker 1 is guided by the mounting portions 11 and 12. The speaker 1 is elongated in the longitudinal direction 1B.
- 2A, 2B, 2C, 2D, and 2E are a rear view, a side view, a top view, a front view, and a bottom view of the frame 2, respectively.
- the side view of the opposite side of the frame 2 shown in FIG. 2B is the same as FIG. 2B.
- 3A is a cross-sectional view of the frame 2 taken along line 3A-3A shown in FIG. 2C.
- 3B is a cross-sectional view taken along line 3B-3B of frame 2 shown in FIG. 2C.
- 3B is a cross-sectional view taken along line 3C-3C of frame 2 shown in FIG. 2C.
- the frame 2 is made of resin and has a substantially rectangular parallelepiped shape as shown in FIGS. 2A to 2E.
- the outer surface 23 of the frame 2 has portions 23A and 23B in the longitudinal direction 1B and portions 23C and 23D perpendicular to the longitudinal direction 1B.
- the portions 23C and 23D of the outer surface 23 are shorter than the portions 23A and 23B. Therefore, the frame 2 has a rectangular shape having a long side composed of the portions 23A and 23B and a short side composed of the portions 23C and 23D. .
- the frame 2 has lock claws 24A and 24B provided on the portions 23A and 23B of the outer surface 23, respectively, as shown in FIGS. 2A and 2D.
- the frame 2 has lock portions 25A and 25B provided on the portions 21A and 21B of the inner surface 21, respectively.
- the lock portion 25A has lock claws 26A and 26B.
- the lock portion 25A has a locking portion 28A provided at the tip of the lock claw 26A and a locking portion 28B provided at the tip of the lock claw 26B.
- the lock portion 25B includes lock claws 26C and 26D, and locking portions 28C and 28D provided at the tips of the lock claws 26C and 26D, respectively.
- the yoke 3 has a guide body portion 31 that protrudes from the end portions 203E and 203F of the bottom plate 203, as shown in FIG. 4A.
- the guide body portion 31 has convex portions 31A and 31B protruding from the end portions 203E and 203F, respectively.
- the yoke 3 includes a side wall 32A extending upward from the end portions 203C and 203D of the bottom plate 203, and a side wall 32B provided on the front side portion of the long side portion.
- the magnet 4 has a rectangular parallelepiped shape that is elongated in the longitudinal direction 1B, as shown in FIG. 1A.
- the upper surface and the lower surface of the magnet 4 have a substantially rectangular shape that is elongated in the longitudinal direction.
- the plate 5A, 5B, and 5C are a top view, a side view, and a front view of the plate 5, respectively.
- the plate 5 has a substantially rectangular parallelepiped shape extending elongated in the longitudinal direction 1B. As shown in FIGS. 5A and 5C, the plate 5 has ends 205C and 205D that are elongated in the longitudinal direction 1B, and ends 205E and 205F that extend perpendicular to the longitudinal direction 1B and are shorter than the ends 205C and 205D.
- a substrate 205 is provided. As described above, the plate 5, that is, the substrate 205 has a rectangular shape having a long side formed by the end portions 205C and 205D and a short side formed by the end portions 205E and 105F.
- the upper surface 205A and the lower surface 205B of the plate 5, that is, the substrate 205 have a rectangular shape.
- the lower surface 205B of the plate 5 and the upper surface of the magnet 4 have substantially the same rectangular shape
- the plate 5 has a guide body portion 51 protruding from the end portions 205E and 205F.
- the guide body 51 has convex portions 51A and 51B that protrude from the end portions 205E and 205F, respectively.
- the convex portion 51 ⁇ / b> A has the same shape as the convex portion 31 ⁇ / b> A of the yoke 3.
- the protrusion 51B has the same shape as the protrusion 31B of the yoke 3 when viewed from above.
- the spacing between the convex portions 51A and 51B is the same as the spacing between the convex portions 31A and 31B of the yoke 3. As shown in FIG.
- the end portion 205C of the plate 5 faces the side wall 32A of the yoke 3 via the magnetic gap 301A, and the end portion 205D faces the side wall 32B of the yoke 3 via the magnetic gap 301B. Yes.
- the voice coil 6A, 6B, and 6C are a top view, a side view, and a front view of the voice coil 6, respectively.
- the voice coil 6 is composed of a single conducting wire wound so as to form a gap 61 at the center.
- the voice coil 6 has a track shape that is elongated in the longitudinal direction 1B when viewed from above. That is, the track shape of the voice coil 6 includes linear straight portions 62A and 62B extending in the longitudinal direction 1B and curved end portions 63A and 63B connecting the linear portions 62A and 62B.
- the voice coil 6 has a height t1 from the lower surface 6B to the upper surface 6A.
- FIG. 7 is a top view of the diaphragm 7.
- the diaphragm 7 has a track shape that is elongated in the longitudinal direction 1B.
- the outer peripheral portion 71 of the diaphragm 7 has the same track shape as the track shape of the mounting portion 29 of the frame 2.
- the diaphragm 7 has an inner peripheral portion 72 having the same track shape as that of the voice coil 6.
- the protector 8 has side walls 218A and 218B extending downward from the ends 208C and 208D, respectively.
- the protector 8 includes lock portions 81A and 81B provided on the side walls 28A and 218B, respectively.
- the lock portion 81A is provided with a hole 181A in which the lock claw 24A of the frame 2 is hooked.
- the lock portion 81B is provided with a hole 181B in which the lock claw 24B of the frame 2 is hooked.
- the protector 8 covers the diaphragm 7 and protects the diaphragm 7.
- the jig 10 includes a pedestal 100A having a mounting surface 100 that is a plane, and guide portions 101, 102, and 103.
- the guide unit 101 will be described.
- the guide part 101 has convex parts 101 ⁇ / b> A and 101 ⁇ / b> B that protrude upward from the placement surface 100.
- the convex portions 101A and 101B have outer peripheral portions 101L and 101M that are in contact with the placement surface 100, respectively.
- the outer peripheral portions 101L and 101M have portions 101N and 101P that face each other.
- FIG. 10 is an enlarged top view of the mounting portion 11.
- the outer peripheral portion 101L of the convex portion 101A includes a portion 101N facing the convex portion 101B and a portion 101C.
- a portion 101C of the outer peripheral portion 101L includes a portion 101D on the opposite side of the portion 101N, and portions 101E and 101F on the opposite side connected to the portions 101C and 101L.
- the portions 101E and 101F extend along the longitudinal direction 1B.
- a portion 101C of the outer peripheral portion 101L of the convex portion 101A has the same shape as the shape of the end portion 22A of the inner surface 21 of the frame 2.
- FIG. 11 is an enlarged top view of the mounting portion 12.
- the outer peripheral portion 101M of the convex portion 101B is composed of a portion 101P facing the convex portion 101A and a portion 101G.
- a portion 101G of the outer peripheral portion 101M includes a portion 101H on the opposite side of the portion 101P and portions 101J and 101K on the opposite sides connected to the portions 101H and 101P.
- the portions 101J and 101K extend in the longitudinal direction 1B.
- a portion 101G of the outer peripheral portion 101M of the convex portion 101B has the same shape as the end portion 22B of the inner side surface 21 of the frame 2.
- the distance L2 between the portions 101E and 101F of the outer peripheral portion 101L of the convex portion 101A is the same as the length in the direction perpendicular to the longitudinal direction 1B of the portion 21C of the inner surface 21 of the frame 2.
- the length L2 of the portion 101H of the outer peripheral portion 101M of the convex portion 101B is the same as the length of the portion 21D of the inner side surface 21 of the frame 2.
- the distance L2 between the portions 101J and 101K of the outer peripheral portion 101M of the convex portion 101B is the same as the length of the portion 21D of the inner surface 21 of the frame 2.
- the guide portion 103 includes a convex portion 103A that protrudes upward from the upper surface 601A of the convex portion 101A, and a convex portion 103B that protrudes upward from the upper surface 601B of the convex portion 101B.
- the convex portion 103A has a height t2 from the upper surface 601A of the convex portion 101A to the upper surface 603B of the convex portion 103A.
- the convex portion 103B also has a height t2 from the upper surface 601B of the convex portion 101B to the upper surface 603B of the convex portion 103B. That is, the guide part 103 has a height t ⁇ b> 2 from the upper surface of the guide part 101 to the upper surface of the guide part 103.
- the height t2 of the guide portion 103 is smaller than the height t1 of the voice coil 6.
- a jig 10 which is a manufacturing apparatus having guide portions 101 to 103 is prepared.
- the voice coil 6 is guided by the guide portion 103 constituted by the convex portions 103A and 103B provided on the jig 10, and placed on the upper surfaces 601A and 601B of the guide portion 101.
- the end portion 63A of the voice coil 6 is fitted into the convex portion 103A from above so that the curved portion 103C of the convex portion 103A and the inner surface of the end portion 63A of the voice coil 6 are in contact with each other along the convex portion 103A. Guided downward and moved.
- the end portion 63B of the voice coil 6 is fitted into the convex portion 103B from above so that the curved portion 103D of the convex portion 103B and the inner surface of the end portion 63B of the voice coil 6 are in contact with each other, and downward along the convex portion 103B. Guided and moved. Then, the lower surfaces of the end portions 63A and 63B of the voice coil 6 are placed on the upper surfaces of the convex portions 101A and 101B.
- the voice coil 6 Since the height t1 of the voice coil 6 is larger than the height t2 from the upper surfaces 601A and 601B of the guide portion 101 to the upper surfaces 603A and 603B of the guide portion 103, the voice coil 6 is the upper surface of the convex portions 103A and 103B of the guide portion 103. Projects upward from 603A and 603B.
- the inner surface of the voice coil 6 is guided by the jig 10 that guides the yoke 3 and the plate 5, so that the conventional manufacturing is performed by combining the voice coil 6, the yoke 3, and the plate 5 without using the jig.
- the distance between the inner surface of the voice coil 6 and the plate 5 can be made uniform, and the quality can be improved.
- the distance between the inner surface of the voice coil 6 and the plate 5 can be narrowed compared to the conventional manufacturing method, and the magnetic flux density of the magnetic gaps 301A and 301B can be increased, so that the performance of the speaker 1 is improved. Can do.
- the diaphragm 7 is coupled to the frame 2 and the voice coil 6.
- an adhesive is applied to the lower surface of the placement portion 29 of the frame 2 and the inner peripheral portion 72 of the diaphragm 7.
- the mounting portion 29 of the frame 2 and the lower surface of the outer peripheral portion 71 of the diaphragm 7 are joined and fixed by an adhesive, and at the same time, the upper surface 6A of the voice coil 6 and the lower surface of the inner peripheral portion 72 of the diaphragm 7 are fixed. Are bonded and fixed by an adhesive.
- the protector 8 is coupled to the frame 2.
- the lock claws 24A and 24B of the frame 2 are respectively hooked on the lock portions 81A and 81B of the protector 8, whereby the protector 8 is attached to the frame 2.
- the frame 2 and the protector 8 are joined and fixed by an adhesive, and the speaker 1 is completed. Thereafter, the speaker 1 is extracted from the jig 1.
- the magnetic gaps 301A and 301B between the plate 5 and the yoke 3 can be narrowed to improve the performance of the speaker 1, and the positional deviation can be prevented to improve the yield of the speaker 1, thereby reducing the manufacturing cost.
- the speaker 1 can be manufactured by fitting each component from above, there are few unnecessary processes, the manufacturing process can be automated, and the manufacturing cost can be further reduced. Further, since the process of molding the frame 2 and the yoke 3 is not necessary, the manufacturing cost of the speaker 1 can be further reduced.
- the voice coil 6 is guided by the guide portion 103 of the jig 10, the voice coil 6 is placed on the upper surfaces 601 ⁇ / b> A and 601 ⁇ / b> B of the guide portion 101, and then the upper surface 6 ⁇ / b> A of the voice coil 6 and the diaphragm 7.
- the lower surface of the inner peripheral portion 72 is joined and fixed by an adhesive.
- the voice coil 6 is guided by the guide portion 103 of the jig 10 after the lower surface of the inner peripheral portion 72 of the diaphragm 7 is bonded and fixed to the upper surface 6A of the voice coil 6 with an adhesive.
- the voice coil 6 may be placed on the upper surfaces 601A and 601B of the guide portion 101.
- an adhesive is applied to the placement portion 29 of the frame 2 before the voice coil 6 is placed on the upper surfaces 601A and 601B of the guide portion 101, and the voice coil 6 is attached to the upper surfaces 601A and 601B of the guide portion 101.
- the mounting portion 29 of the frame 2 and the lower surface of the outer peripheral portion 71 of the diaphragm 7 are joined and fixed by an adhesive. This process is suitable for manufacturing the speaker 1 in which the voice coil 6 vibrates with a large amplitude.
- a new placement portion protrudes from the placement surface 100 to the projections 103A and 103B, and the height from the upper surface of the new placement portion to the projection 103A, and the projection 103B from the upper surface of the new placement portion. Is the same height t3.
- the guide portion 702 according to the second embodiment has convex portions 702A and 702B instead of the concave portions 102A and 102B of the guide portion 102 according to the first embodiment.
- the convex portion 702A protrudes from the portion 101N facing the mounting portion 712 of the outer peripheral portion 101L of the mounting portion 711 toward the mounting portion 702B.
- the convex portion 702B protrudes from the portion 101P facing the attachment portion 711 of the outer peripheral portion 101M of the attachment portion 712 toward the attachment portion 711. As shown in FIG.
- the end portions 203E and 203F of the bottom plate 203 of the yoke 73 are provided with recesses 731A and 731B, respectively.
- recesses 751 ⁇ / b> A and 751 ⁇ / b> B are provided at end portions 205 ⁇ / b> E and 205 ⁇ / b> F of the plate 705, respectively.
- the concave portion 731A of the yoke 703 and the concave portion 751A of the plate 705 are guided by the convex portion 702A of the guide portion 702.
- the concave portion 731B of the yoke 703 and the concave portion 751B of the plate 705 are guided by the convex portion 702B of the guide portion 702.
- FIG. 15 is an exploded perspective view of the speaker 1 according to the third embodiment of the present invention. 15, the same reference numerals are assigned to the same parts as those of the speaker 1 according to the first embodiment shown in FIGS. 1A to 11.
- the speaker 1 shown in FIG. 15 is manufactured by a jig 10A which is a manufacturing apparatus instead of the jig 10 which is the manufacturing apparatus shown in FIG. 1A.
- the jig 10A includes mounting parts 11A and 12A provided on the mounting surface 100 of the base 100A, instead of the mounting parts 11 and 12 of the jig 10 which is the manufacturing apparatus shown in FIG. 1A.
- 16A, 16B, and 16C are a top view, a side view, and a front view, respectively, of a jig 10A that is a manufacturing apparatus for manufacturing the speaker 1.
- FIG. FIG. 17 is a top view of the attachment portion 11A.
- FIG. 18 is a top view of the mounting portion 12A.
- 16A to 18 the same reference numerals are assigned to the same portions as those of the jig 10 that is the manufacturing apparatus according to the first embodiment shown in FIGS. 9 to 11.
- the jig 10A includes a guide portion 803 instead of the guide portion 103 of the jig 10 shown in FIG.
- 11 A of attachment parts have the convex parts 803G and 803H which protrude from the upper surface 601A of the convex part 101A instead of the convex part 103A of the attachment part 11 by Embodiment 1.
- FIG. The concave portion 102A is located between the convex portions 803G and 803H.
- the convex portions 803G and 803H have curved portions 103G and 103H having shapes that coincide with the inner surface of the end portion 63A of the voice coil 6, respectively.
- 12 A of attachment parts have the convex parts 803J and 803K which protrude from the upper surface 601B of the convex part 101B instead of the convex part 103B of the attachment part 12 by Embodiment 1.
- the concave portion 102B is located between the convex portions 803J and 803K.
- the convex portions 803J and 803K have curved portions 103J and 103K having shapes that coincide with the inner surface of the end portion 63B of the voice coil 6, respectively.
- the gap between the speaker plate and the yoke can be narrowed, the speaker can be manufactured with a good yield, and the manufacturing cost can be reduced. Therefore, the speaker manufactured by this manufacturing method is useful as a speaker used for small acoustic devices such as mobile phones and electronic devices.
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Abstract
A manufacturing device for a speaker is provided with a first to a third guide. A frame is guided by the first guide and mounted on the manufacturing device. A yoke is guided by the second guide, and the frame and the yoke are coupled. A plate to which a magnet is joined is guided by the second guide, and the magnet and the yoke are coupled. A voice coil is guided by the third guide and mounted on the manufacturing device. The voice coil and a diaphragm are coupled. The fame and the diaphragm are coupled. The frame, the yoke, the plate, the magnet, the voice coil, and the diaphragm are then extracted from the manufacturing device. By the above manufacturing method, the gap between the plate and the yoke of the speaker can be narrowed, the speaker can be manufactured with good yield, and the manufacturing cost can be reduced.
Description
本発明は各種音響機器や映像機器に使用されるスピーカとその製造方法およびその製造装置に関する。
The present invention relates to a speaker used in various audio equipment and video equipment, a manufacturing method thereof, and a manufacturing apparatus thereof.
近年、携帯電話などの電子機器に対する小型化、薄型化の要求に伴い、それら電子機器に搭載されるスピーカにも小型化、薄型化の要求が高まっている。スピーカは一般に機械により組み立てることは困難であり、熟練を要する操作者の手作業で行われている。スピーカが小型化、薄型化されるに伴い、手作業による部品の位置ずれの影響が大きくなり、歩留まりが低くなる。特に、スピーカの構成部品であるマグネットのサイズが小さくなることによる性能の低下を補うために、プレートとヨークとの間のギャップを狭くする必要がある。このギャップが狭くなるとボイスコイルがプレートやヨークに接触し、スピーカの歩留まりが低くなる。
In recent years, with the demand for miniaturization and thinning of electronic devices such as mobile phones, there is an increasing demand for miniaturization and thinning of speakers mounted on such electronic devices. The speaker is generally difficult to assemble by a machine, and is performed manually by an operator who requires skill. As the speakers are reduced in size and thickness, the influence of component displacement due to manual work increases, and the yield decreases. In particular, it is necessary to narrow the gap between the plate and the yoke in order to compensate for the performance degradation due to the reduction in the size of the magnet that is a component of the speaker. When this gap is narrowed, the voice coil comes into contact with the plate and the yoke, and the yield of the speaker is lowered.
特許文献1は、治具でスピーカを組み立てて歩留まりを向上させることを記載している。
Patent Document 1 describes that a yield is improved by assembling a speaker with a jig.
磁気回路部品や振動部品などの部品は別々の工程で別々の治具が使用されて組み立てられる。ボイスコイルは、治具を使用せずにプレートとヨークとの間に挿入されているので、ボイスコイルとプレートとの間のギャップやボイスコイルとヨークとの間のギャップを狭くすることは困難である。また、これらの部品をモールドするスピーカでは、金型等のコストの高い製造装置を必要とする。
¡Parts such as magnetic circuit parts and vibration parts are assembled using different jigs in different processes. Since the voice coil is inserted between the plate and the yoke without using a jig, it is difficult to narrow the gap between the voice coil and the plate or the gap between the voice coil and the yoke. is there. In addition, a speaker for molding these components requires a costly manufacturing apparatus such as a mold.
スピーカの製造装置は第1から第3のガイド部を備える。フレームが第1のガイド部にガイドされて製造装置にフレームを載置する。ヨークが第2のガイド部にガイドされてフレームとヨークとを結合する。マグネットが接合されたプレートが第2のガイド部にガイドされてマグネットとヨークとを結合する。ボイスコイルが第3のガイド部にガイドされて製造装置にボイスコイルを載置する。ボイスコイルと振動板とを結合する。フレームと振動板とを結合する。その後、フレームとヨークとプレートとマグネットとボイスコイルと振動板とを製造装置から抜き取る。
The speaker manufacturing apparatus includes first to third guide portions. The frame is guided by the first guide portion and placed on the manufacturing apparatus. The yoke is guided by the second guide portion to couple the frame and the yoke. The plate to which the magnet is joined is guided by the second guide portion to couple the magnet and the yoke. The voice coil is guided by the third guide portion, and the voice coil is placed on the manufacturing apparatus. Connect the voice coil and the diaphragm. Connect the frame and the diaphragm. Thereafter, the frame, yoke, plate, magnet, voice coil, and diaphragm are extracted from the manufacturing apparatus.
この製造方法により、スピーカのプレートとヨークの間のギャップを狭くすることができ、スピーカを良好な歩留まりで製造することができ、製造コストを下げることができる。
This manufacturing method can narrow the gap between the speaker plate and the yoke, can manufacture the speaker with a good yield, and can reduce the manufacturing cost.
(実施の形態1)
図1Aは本発明の実施の形態1によるスピーカ1の分解斜視図である。図1Bはスピーカ1の主要部分の断面図である。スピーカ1は、フレーム2と、ヨーク3と、マグネット4と、プレート5と、ボイスコイル6と、振動板7と、プロテクタ8とを備える。ヨーク3はフレーム2内に装着される。マグネット4の下面はヨーク3上に接合され、プレート5の下面はマグネット4の上面に接合される。プレート5の端部205Cとヨーク3の側壁32Aとの間には磁気ギャップ301Aが形成される。また、プレート5の端部205Dとヨーク3の側壁32Bとの間には磁気ギャップ301Bが形成される。ボイスコイル6は磁気ギャップ301A、301B内に配置されている。ヨーク3とマグネット4とプレート5によって磁気回路1Aが形成される。 (Embodiment 1)
FIG. 1A is an exploded perspective view of aspeaker 1 according to Embodiment 1 of the present invention. FIG. 1B is a cross-sectional view of the main part of the speaker 1. The speaker 1 includes a frame 2, a yoke 3, a magnet 4, a plate 5, a voice coil 6, a diaphragm 7, and a protector 8. The yoke 3 is mounted in the frame 2. The lower surface of the magnet 4 is bonded onto the yoke 3, and the lower surface of the plate 5 is bonded to the upper surface of the magnet 4. A magnetic gap 301 </ b> A is formed between the end portion 205 </ b> C of the plate 5 and the side wall 32 </ b> A of the yoke 3. Further, a magnetic gap 301B is formed between the end portion 205D of the plate 5 and the side wall 32B of the yoke 3. The voice coil 6 is disposed in the magnetic gaps 301A and 301B. A magnetic circuit 1 </ b> A is formed by the yoke 3, the magnet 4 and the plate 5.
図1Aは本発明の実施の形態1によるスピーカ1の分解斜視図である。図1Bはスピーカ1の主要部分の断面図である。スピーカ1は、フレーム2と、ヨーク3と、マグネット4と、プレート5と、ボイスコイル6と、振動板7と、プロテクタ8とを備える。ヨーク3はフレーム2内に装着される。マグネット4の下面はヨーク3上に接合され、プレート5の下面はマグネット4の上面に接合される。プレート5の端部205Cとヨーク3の側壁32Aとの間には磁気ギャップ301Aが形成される。また、プレート5の端部205Dとヨーク3の側壁32Bとの間には磁気ギャップ301Bが形成される。ボイスコイル6は磁気ギャップ301A、301B内に配置されている。ヨーク3とマグネット4とプレート5によって磁気回路1Aが形成される。 (Embodiment 1)
FIG. 1A is an exploded perspective view of a
スピーカ1を製造する製造装置である治具10は、載置面100を有する台座100Aと、載置面100に設けられた取付部11、12を備える。取付部11、12によってスピーカ1の各部品がガイドされる。スピーカ1は長手方向1Bに細長く延びる。
A jig 10 that is a manufacturing apparatus for manufacturing the speaker 1 includes a pedestal 100 </ b> A having a mounting surface 100 and mounting portions 11 and 12 provided on the mounting surface 100. Each component of the speaker 1 is guided by the mounting portions 11 and 12. The speaker 1 is elongated in the longitudinal direction 1B.
次に、スピーカ1の各部品について説明する。
Next, each component of the speaker 1 will be described.
図2A、図2B、図2C、図2D、図2Eはそれぞれフレーム2の背面図、側面図、上面図、正面図、底面図である。フレーム2の図2Bに示す反対側の側面図は図2Bと同じである。図3Aは図2Cに示すフレーム2の線3A-3Aにおける断面図である。図3Bは図2Cに示すフレーム2の線3B-3Bにおける断面図である。図3Bは図2Cに示すフレーム2の線3C-3Cにおける断面図である。
2A, 2B, 2C, 2D, and 2E are a rear view, a side view, a top view, a front view, and a bottom view of the frame 2, respectively. The side view of the opposite side of the frame 2 shown in FIG. 2B is the same as FIG. 2B. 3A is a cross-sectional view of the frame 2 taken along line 3A-3A shown in FIG. 2C. 3B is a cross-sectional view taken along line 3B-3B of frame 2 shown in FIG. 2C. 3B is a cross-sectional view taken along line 3C-3C of frame 2 shown in FIG. 2C.
フレーム2は樹脂からなり、図2Aから図2Eに示すように略直方体形状を有する。図2Cに示すように、フレーム2の外側面23は、長手方向1Bの部分23A、23Bと、長手方向1Bに直角の部分23C、23Dとを有する。上面から見て、外側面23の部分23C、23Dは部分23A、23Bより短く、したがって、フレーム2は部分23A、23Bよりなる長辺と部分23C、23Dよりなる短辺とを有する矩形形状を有する。
The frame 2 is made of resin and has a substantially rectangular parallelepiped shape as shown in FIGS. 2A to 2E. As shown in FIG. 2C, the outer surface 23 of the frame 2 has portions 23A and 23B in the longitudinal direction 1B and portions 23C and 23D perpendicular to the longitudinal direction 1B. When viewed from the top, the portions 23C and 23D of the outer surface 23 are shorter than the portions 23A and 23B. Therefore, the frame 2 has a rectangular shape having a long side composed of the portions 23A and 23B and a short side composed of the portions 23C and 23D. .
図2Cと図2Eに示すように、フレーム2の中央部には開口部212Aが設けられている。フレーム2は開口部212Aに面する内側面21を有する。フレーム2の内側面21は、長手方向1Bで互いに反対側に位置する端部22A、22Bと、長手方向1Aに延びて互いに対向する部分21A、21Bとを有する。内側面21の端部22A、22Bは外側面23の部分23A、23Bにそれぞれ沿って位置し、治具10の取付部11、12によってそれぞれガイドされる。
2C and 2E, an opening 212A is provided at the center of the frame 2. The frame 2 has an inner surface 21 facing the opening 212A. The inner side surface 21 of the frame 2 includes end portions 22A and 22B that are located on opposite sides in the longitudinal direction 1B, and portions 21A and 21B that extend in the longitudinal direction 1A and face each other. The end portions 22A and 22B of the inner surface 21 are positioned along the portions 23A and 23B of the outer surface 23, respectively, and are guided by the mounting portions 11 and 12 of the jig 10, respectively.
フレーム2は、図2Aと図2Dに示すように、外側面23の部分23A、23Bにそれぞれ設けられたロック爪24A、24Bを有する。
The frame 2 has lock claws 24A and 24B provided on the portions 23A and 23B of the outer surface 23, respectively, as shown in FIGS. 2A and 2D.
フレーム2は、図2Cに示すように、内側面21の部分21A、21Bにそれぞれ設けられたロック部25A、25Bを有する。図3Aに示すように、ロック部25Aはロック爪26A、26Bを有する。ロック部25Aはロック爪26Aの先端に設けられた係止部28Aと、ロック爪26Bの先端に設けられた係止部28Bとを有する。同様に、図3Cに示すように、ロック部25Bはロック爪26C、26Dと、ロック爪26C、26Dの先端にそれぞれ設けられた係止部28C、28Dとを有する。
As shown in FIG. 2C, the frame 2 has lock portions 25A and 25B provided on the portions 21A and 21B of the inner surface 21, respectively. As shown in FIG. 3A, the lock portion 25A has lock claws 26A and 26B. The lock portion 25A has a locking portion 28A provided at the tip of the lock claw 26A and a locking portion 28B provided at the tip of the lock claw 26B. Similarly, as shown in FIG. 3C, the lock portion 25B includes lock claws 26C and 26D, and locking portions 28C and 28D provided at the tips of the lock claws 26C and 26D, respectively.
また、図3Bに示すように、フレーム2の内側面21の部分21A、21Bの底面222Bから突出部27A、27Bがそれぞれフレーム2の中心に向かって突出している。係止部28A、28B、28C、28Dは、フレーム2の内側面21よりもフレーム2の中心に向かって突出している。フレーム2は、外側面23と内側面21との間に設けられたトラック形状を有する載置部29を有する。
Further, as shown in FIG. 3B, projecting portions 27A and 27B project from the bottom surface 222B of the inner surface 21 of the frame 2 toward the center of the frame 2, respectively. The locking portions 28 </ b> A, 28 </ b> B, 28 </ b> C, 28 </ b> D protrude toward the center of the frame 2 from the inner surface 21 of the frame 2. The frame 2 has a mounting portion 29 having a track shape provided between the outer surface 23 and the inner surface 21.
図4A、図4B、図4Cはそれぞれヨーク3の上面図、側面図、正面図である。ヨーク3は鉄等の磁性材からなる。図4Bに示すように、ヨーク3は、上面203Aと下面203Bを有する底板203を有する。図4Aに示すように、上面から見て、底板203は長手方向1Bに延びる端部203C、203Dと、長手方向1Bと直角に延びる端部203E、203Fとを有する。端部203C、203Dは端部203E、203Fより長い。このように、底板203は上面から見て、端部203C、203Dよりなる長辺と、端部203E、203Fよりなる短辺とを有する実質的に矩形形状を有する。
4A, 4B, and 4C are a top view, a side view, and a front view of the yoke 3, respectively. The yoke 3 is made of a magnetic material such as iron. As shown in FIG. 4B, the yoke 3 has a bottom plate 203 having an upper surface 203A and a lower surface 203B. As shown in FIG. 4A, when viewed from above, the bottom plate 203 has end portions 203C and 203D extending in the longitudinal direction 1B and end portions 203E and 203F extending at right angles to the longitudinal direction 1B. The end portions 203C and 203D are longer than the end portions 203E and 203F. As described above, the bottom plate 203 has a substantially rectangular shape having a long side composed of the end portions 203C and 203D and a short side composed of the end portions 203E and 203F when viewed from above.
ヨーク3は、図4Aに示すように、底板203の端部203E、203Fから突出するガイド体部31を有する。ガイド体部31は、端部203E、203Fからそれぞれ突出する凸部31A、31Bを有する。
The yoke 3 has a guide body portion 31 that protrudes from the end portions 203E and 203F of the bottom plate 203, as shown in FIG. 4A. The guide body portion 31 has convex portions 31A and 31B protruding from the end portions 203E and 203F, respectively.
ヨーク3は、図4Bに示すように、底板203の端部203C、203Dからそれぞれ上方に延びる側壁32Aと、長辺側の部分のうち正面側の部分に設けられた側壁32Bとを有する。
As shown in FIG. 4B, the yoke 3 includes a side wall 32A extending upward from the end portions 203C and 203D of the bottom plate 203, and a side wall 32B provided on the front side portion of the long side portion.
ヨーク3には、図4Bに示すように、底板203の上面203Aと側壁32A、32Bで囲まれた凹部33が設けられている。底板203の上面203A、すなわち凹部33の底面には窪部34が設けられている。図4Bに示すように、底板203の下面203Bの側壁32A、32Bと対向する部分には段差部35A、35Bがそれぞれ設けられている。
As shown in FIG. 4B, the yoke 3 is provided with a recess 33 surrounded by the upper surface 203A of the bottom plate 203 and the side walls 32A and 32B. A recess 34 is provided on the upper surface 203 </ b> A of the bottom plate 203, that is, on the bottom surface of the recess 33. As shown in FIG. 4B, step portions 35A and 35B are provided at portions of the lower surface 203B of the bottom plate 203 facing the side walls 32A and 32B, respectively.
マグネット4は、図1Aに示すように、長手方向1Bに細長く延びる直方体形状を有する。マグネット4の上面と下面は、長手方向に細長く延びる実質的に矩形形状を有する。
The magnet 4 has a rectangular parallelepiped shape that is elongated in the longitudinal direction 1B, as shown in FIG. 1A. The upper surface and the lower surface of the magnet 4 have a substantially rectangular shape that is elongated in the longitudinal direction.
図5A、図5B、図5Cはそれぞれプレート5の上面図、側面図、正面図である。プレート5は、長手方向1Bに細長く延びる実質的に直方体形状を有する。図5Aと図5Cに示すように、プレート5は、長手方向1Bに細長く延びる端部205C,205Dと、長手方向1Bと直角に延びて端部205C、205Dより短い端部205E、205Fとを有する基板205を備える。このようにプレート5すなわち基板205は、端部205C、205Dよりなる長辺と、端部205E、105Fよりなる短辺とを有する矩形形状を有する。プレート5すなわち基板205の上面205Aと下面205Bは矩形形状を有する。プレート5の下面205Bとマグネット4の上面は実質的に同じ矩形形状を有する。
5A, 5B, and 5C are a top view, a side view, and a front view of the plate 5, respectively. The plate 5 has a substantially rectangular parallelepiped shape extending elongated in the longitudinal direction 1B. As shown in FIGS. 5A and 5C, the plate 5 has ends 205C and 205D that are elongated in the longitudinal direction 1B, and ends 205E and 205F that extend perpendicular to the longitudinal direction 1B and are shorter than the ends 205C and 205D. A substrate 205 is provided. As described above, the plate 5, that is, the substrate 205 has a rectangular shape having a long side formed by the end portions 205C and 205D and a short side formed by the end portions 205E and 105F. The upper surface 205A and the lower surface 205B of the plate 5, that is, the substrate 205 have a rectangular shape. The lower surface 205B of the plate 5 and the upper surface of the magnet 4 have substantially the same rectangular shape.
プレート5は、図5Aに示すように、端部205E、205Fから突出するガイド体部51を有する。ガイド体部51は、端部205E、205Fからそれぞれ突出する凸部51A、51Bを有する。上面から見て、凸部51Aは、ヨーク3の凸部31Aと同じ形状を有する。同様に、上面から見て、凸部51Bは、ヨーク3の凸部31Bと同じ形状を有する。凸部51A、51B間の間隔がヨーク3の凸部31A、31B間の間隔と同じである。図1Bに示すように、プレート5の端部205Cは磁気ギャップ301Aを介してヨーク3の側壁32Aと対向しており、端部205Dは磁気ギャップ301Bを介してヨーク3の側壁32Bと対向している。
As shown in FIG. 5A, the plate 5 has a guide body portion 51 protruding from the end portions 205E and 205F. The guide body 51 has convex portions 51A and 51B that protrude from the end portions 205E and 205F, respectively. When viewed from the top, the convex portion 51 </ b> A has the same shape as the convex portion 31 </ b> A of the yoke 3. Similarly, the protrusion 51B has the same shape as the protrusion 31B of the yoke 3 when viewed from above. The spacing between the convex portions 51A and 51B is the same as the spacing between the convex portions 31A and 31B of the yoke 3. As shown in FIG. 1B, the end portion 205C of the plate 5 faces the side wall 32A of the yoke 3 via the magnetic gap 301A, and the end portion 205D faces the side wall 32B of the yoke 3 via the magnetic gap 301B. Yes.
図6A、図6B、図6Cはそれぞれボイスコイル6の上面図、側面図、正面図である。ボイスコイル6は、中央に空隙61を形成するように巻回された1本の導線からなる。ボイスコイル6は、図6Aに示すように、上面から見て長手方向1Bに細長く延びるトラック形状を有する。すなわち、ボイスコイル6のトラック形状は、長手方向1Bに延びる直線形状の直線部62A、62Bと、直線部62A、62Bを連結する湾曲形状の端部63A、63Bを有する。ボイスコイル6は、図6Cに示すように、下面6Bから上面6Aまでの高さt1を有する。
6A, 6B, and 6C are a top view, a side view, and a front view of the voice coil 6, respectively. The voice coil 6 is composed of a single conducting wire wound so as to form a gap 61 at the center. As shown in FIG. 6A, the voice coil 6 has a track shape that is elongated in the longitudinal direction 1B when viewed from above. That is, the track shape of the voice coil 6 includes linear straight portions 62A and 62B extending in the longitudinal direction 1B and curved end portions 63A and 63B connecting the linear portions 62A and 62B. As shown in FIG. 6C, the voice coil 6 has a height t1 from the lower surface 6B to the upper surface 6A.
図7は、振動板7の上面図である。振動板7は、長手方向1Bに細長く延びるトラック形状を有する。振動板7の外周部71はフレーム2の載置部29のトラック形状と同一のトラック形状を有する。振動板7は、ボイスコイル6のトラック形状と同一のトラック形状を有する内周部72を有する。
FIG. 7 is a top view of the diaphragm 7. The diaphragm 7 has a track shape that is elongated in the longitudinal direction 1B. The outer peripheral portion 71 of the diaphragm 7 has the same track shape as the track shape of the mounting portion 29 of the frame 2. The diaphragm 7 has an inner peripheral portion 72 having the same track shape as that of the voice coil 6.
図8A、図8B、図8Cはそれぞれプロテクタ8の上面図、側面図、正面図である。プロテクタ8は、長手方向1Bに細長く延びる天板208を有する。上面から見て、天板208は図8Aに示すように、長手方向1Bに延びる直線形状を有する端部208C、208Dと、端部208C、208Dに接続された湾曲形状を有する端部208E、208Fとからなる。プロテクタ8の天板208の外周部208Gは、振動板7の外周部71と実質的に同じトラック形状を有する。図8B、図8Cに示すように、プロテクタ8は、端部208C、208Dからそれぞれ下方に延びる側壁218A、218Bを有する。プロテクタ8は、側壁28A、218Bにそれぞれ設けられたロック部81A、81Bを有する。ロック部81Aには、フレーム2のロック爪24Aが引っかかる穴181Aが設けられている。また、ロック部81Bには、フレーム2のロック爪24Bが引っかかる穴181Bが設けられている。プロテクタ8は、振動板7を覆って振動板7を保護する。
8A, 8B, and 8C are a top view, a side view, and a front view of the protector 8, respectively. The protector 8 has a top plate 208 that is elongated in the longitudinal direction 1B. As shown in FIG. 8A, the top plate 208 has end portions 208C and 208D having linear shapes extending in the longitudinal direction 1B and end portions 208E and 208F having curved shapes connected to the end portions 208C and 208D, as shown in FIG. 8A. It consists of. An outer peripheral portion 208 </ b> G of the top plate 208 of the protector 8 has substantially the same track shape as the outer peripheral portion 71 of the diaphragm 7. As shown in FIGS. 8B and 8C, the protector 8 has side walls 218A and 218B extending downward from the ends 208C and 208D, respectively. The protector 8 includes lock portions 81A and 81B provided on the side walls 28A and 218B, respectively. The lock portion 81A is provided with a hole 181A in which the lock claw 24A of the frame 2 is hooked. Further, the lock portion 81B is provided with a hole 181B in which the lock claw 24B of the frame 2 is hooked. The protector 8 covers the diaphragm 7 and protects the diaphragm 7.
図9A、図9B、図9Cはそれぞれスピーカ1を製造するための製造装置である治具10の上面図、側面図、正面図である。
9A, 9B, and 9C are a top view, a side view, and a front view of a jig 10 that is a manufacturing apparatus for manufacturing the speaker 1, respectively.
治具10は、図9Aから図9Cに示すように、平面である載置面100を有する台座100Aと、ガイド部101、102、103を有する。
9A to 9C, the jig 10 includes a pedestal 100A having a mounting surface 100 that is a plane, and guide portions 101, 102, and 103.
ガイド部101について説明する。ガイド部101は、載置面100から上方に突出する凸部101A、101Bを有する。凸部101A、101Bは載置面100に当接する外周部101L、101Mをそれぞれ有する。外周部101L、101Mは互いに対向する部分101N、101Pをそれぞれ有する。
The guide unit 101 will be described. The guide part 101 has convex parts 101 </ b> A and 101 </ b> B that protrude upward from the placement surface 100. The convex portions 101A and 101B have outer peripheral portions 101L and 101M that are in contact with the placement surface 100, respectively. The outer peripheral portions 101L and 101M have portions 101N and 101P that face each other.
図10は取付部11の拡大上面図である。凸部101Aの外周部101Lは、凸部101Bに対向する部分101Nと、部分101Cよりなる。外周部101Lの部分101Cは、部分101Nの反対側の部分101Dと、部分101C、101Lに接続されて互いに反対側の部分101E、101Fとからなる。部分101E、101Fは長手方向1Bに沿って延びている。凸部101Aの外周部101Lの部分101Cは、フレーム2の内側面21の端部22Aの形状と同じ形状を有する。
FIG. 10 is an enlarged top view of the mounting portion 11. The outer peripheral portion 101L of the convex portion 101A includes a portion 101N facing the convex portion 101B and a portion 101C. A portion 101C of the outer peripheral portion 101L includes a portion 101D on the opposite side of the portion 101N, and portions 101E and 101F on the opposite side connected to the portions 101C and 101L. The portions 101E and 101F extend along the longitudinal direction 1B. A portion 101C of the outer peripheral portion 101L of the convex portion 101A has the same shape as the shape of the end portion 22A of the inner surface 21 of the frame 2.
図11は取付部12の拡大上面図である。凸部101Bの外周部101Mは、凸部101Aに対向する部分101Pと、部分101Gよりなる。外周部101Mの部分101Gは、部分101Pの反対側の部分101Hと、部分101H、101Pに接続されて互いに反対側の部分101J、101Kとからなる。部分101J、101Kは長手方向1Bに延びている。凸部101Bの外周部101Mの部分101Gは、フレーム2の内側面21の端部22Bと同じ形状を有する。
FIG. 11 is an enlarged top view of the mounting portion 12. The outer peripheral portion 101M of the convex portion 101B is composed of a portion 101P facing the convex portion 101A and a portion 101G. A portion 101G of the outer peripheral portion 101M includes a portion 101H on the opposite side of the portion 101P and portions 101J and 101K on the opposite sides connected to the portions 101H and 101P. The portions 101J and 101K extend in the longitudinal direction 1B. A portion 101G of the outer peripheral portion 101M of the convex portion 101B has the same shape as the end portion 22B of the inner side surface 21 of the frame 2.
凸部101A、101Bとフレーム2との関係について説明する。凸部101Aの外周部101Lの部分101Dと凸部101Bの外周部101Mの部分101Hとの間隔L1は、フレーム2の内側面21の部分21A、21Bの長手方向1Bでの長さと同じである。また、凸部101Aの外周部101Lの部分101Dの長さL2は、フレーム2の内側面21の部分21Cの長手方向1Bと直角の方向での長さと同じである。言い換えると、凸部101Aの外周部101Lの部分101E、101F間の間隔L2は、フレーム2の内側面21の部分21Cの長手方向1Bと直角の方向での長さと同じである。また、凸部101Bの外周部101Mの部分101Hの長さL2は、フレーム2の内側面21の部分21Dの長さと同じである。言い換えると、凸部101Bの外周部101Mの部分101J、101K間の間隔L2は、フレーム2の内側面21の部分21Dの長さと同じである。
The relationship between the convex portions 101A and 101B and the frame 2 will be described. The distance L1 between the portion 101D of the outer peripheral portion 101L of the convex portion 101A and the portion 101H of the outer peripheral portion 101M of the convex portion 101B is the same as the length in the longitudinal direction 1B of the portions 21A and 21B of the inner surface 21 of the frame 2. The length L2 of the portion 101D of the outer peripheral portion 101L of the convex portion 101A is the same as the length in the direction perpendicular to the longitudinal direction 1B of the portion 21C of the inner side surface 21 of the frame 2. In other words, the distance L2 between the portions 101E and 101F of the outer peripheral portion 101L of the convex portion 101A is the same as the length in the direction perpendicular to the longitudinal direction 1B of the portion 21C of the inner surface 21 of the frame 2. Further, the length L2 of the portion 101H of the outer peripheral portion 101M of the convex portion 101B is the same as the length of the portion 21D of the inner side surface 21 of the frame 2. In other words, the distance L2 between the portions 101J and 101K of the outer peripheral portion 101M of the convex portion 101B is the same as the length of the portion 21D of the inner surface 21 of the frame 2.
次に、ガイド部102について説明する。ガイド部102は、凸部101Aの外周部101Lの凸部101Bに対向する部分101Nに設けられた凹部102Aと、凸部101Bの外周部101Mの凸部101Aに対向する部分101Pに設けられた凹部102Bで構成されている。凹部102Aはヨーク3に設けられた凸部31Aの形状と同じ形状を有する。凹部102Bはヨーク3に設けられた凸部31Bの形状と同じ形状を有する。凹部102A、102B間の間隔は凸部31A、31B間の間隔と同じであり、かつプレート5に設けられた凸部51A、51B間の間隔と同じである。
Next, the guide unit 102 will be described. The guide portion 102 includes a concave portion 102A provided in a portion 101N facing the convex portion 101B of the outer peripheral portion 101L of the convex portion 101A, and a concave portion provided in a portion 101P facing the convex portion 101A of the outer peripheral portion 101M of the convex portion 101B. 102B. The concave portion 102A has the same shape as the convex portion 31A provided in the yoke 3. The concave portion 102 </ b> B has the same shape as the convex portion 31 </ b> B provided on the yoke 3. The interval between the recesses 102A and 102B is the same as the interval between the projections 31A and 31B, and the same as the interval between the projections 51A and 51B provided on the plate 5.
次に、ガイド部103について説明する。ガイド部103は、凸部101Aの上面601Aから上方に突出する凸部103Aと、凸部101Bの上面601Bから上方に突出する凸部103Bとを有する。図9Cに示すように、凸部103Aは、凸部101Aの上面601Aからの凸部103Aの上面603Bまでの高さt2を有する。同様に、凸部103Bも、凸部101Bの上面601Bから凸部103Bの上面603Bまでの高さt2を有する。すなわち、ガイド部103は、ガイド部101の上面からガイド部103の上面までの高さt2を有する。ガイド部103の高さt2はボイスコイル6の高さt1よりも小さい。
Next, the guide unit 103 will be described. The guide portion 103 includes a convex portion 103A that protrudes upward from the upper surface 601A of the convex portion 101A, and a convex portion 103B that protrudes upward from the upper surface 601B of the convex portion 101B. As shown in FIG. 9C, the convex portion 103A has a height t2 from the upper surface 601A of the convex portion 101A to the upper surface 603B of the convex portion 103A. Similarly, the convex portion 103B also has a height t2 from the upper surface 601B of the convex portion 101B to the upper surface 603B of the convex portion 103B. That is, the guide part 103 has a height t <b> 2 from the upper surface of the guide part 101 to the upper surface of the guide part 103. The height t2 of the guide portion 103 is smaller than the height t1 of the voice coil 6.
図10に示すように、凸部103Aは、ボイスコイル6の端部63Aの形状と同じ形状を有する湾曲部103Cを有する。図11に示すように、凸部103Bは、ボイスコイル6の端部63Bの形状と同じ形状を有する湾曲部103Dを有する。凸部103A、103Bの湾曲部103C、103D間の間隔は、ボイスコイル6の端部63A、63B間の間隔と同じである。
As shown in FIG. 10, the convex portion 103 </ b> A has a curved portion 103 </ b> C having the same shape as the end portion 63 </ b> A of the voice coil 6. As shown in FIG. 11, the convex portion 103 </ b> B has a curved portion 103 </ b> D having the same shape as the end portion 63 </ b> B of the voice coil 6. The spacing between the curved portions 103C and 103D of the convex portions 103A and 103B is the same as the spacing between the end portions 63A and 63B of the voice coil 6.
次に、製造装置である治具10を用いたスピーカ1の製造方法について説明する。ガイド部101~103を有する製造装置である治具10を準備する。
Next, a method for manufacturing the speaker 1 using the jig 10 which is a manufacturing apparatus will be described. A jig 10 which is a manufacturing apparatus having guide portions 101 to 103 is prepared.
まず、治具10に設けられた凸部101A、101Bで構成されたガイド部101でフレーム2がガイドされ、フレーム2が治具10の載置面100に載置される。すなわち、フレーム2の内側面21の端部22Aが凸部101Aの外周部101Lの部分101Cに上から嵌め込まれて、凸部101Aに沿って載置面100までガイドされて移動される。同時に、フレーム2の内側面21の端部22Bが凸部101Bの外周部101Mの部分101Gに上から嵌め込まれて、凸部101Bに沿って載置面100までガイドされて移動される。
First, the frame 2 is guided by the guide portion 101 configured by the convex portions 101 </ b> A and 101 </ b> B provided on the jig 10, and the frame 2 is placed on the placement surface 100 of the jig 10. That is, the end 22A of the inner surface 21 of the frame 2 is fitted into the portion 101C of the outer peripheral portion 101L of the convex portion 101A from above, and is guided and moved to the placement surface 100 along the convex portion 101A. At the same time, the end portion 22B of the inner surface 21 of the frame 2 is fitted from above into the portion 101G of the outer peripheral portion 101M of the convex portion 101B, and is guided and moved to the placement surface 100 along the convex portion 101B.
次に、治具10に設けられた凹部102A、102Bで構成されたガイド部102でヨーク3がガイドされ、ヨーク3がフレーム2と結合される。この工程では、まずヨーク3の段差部35A、35Bに接着剤が塗布される。そして、ヨーク3の凸部31Aが凹部102Aに上から嵌め込まれて、凹部102Aに沿って下向きにガイドされて移動される。同時に、ヨーク3の凸部31Bが凹部102Bに上から嵌め込まれて、凹部102Bに沿って下向きにガイドされて移動される。その後、ヨーク3の段差部35A、35Bとフレーム2の突出部27A、27Bとが、段差部35A、35Bに塗布された接着剤によって接合される。このとき、フレーム2のロック部25A、25Bは、ヨーク3の側壁32A、32Bの外側面をフレーム2の開口部212Aに向かってそれぞれ押圧する。そして、係止部28A、28Bはヨーク3の側壁32Aの上面と接してヨーク3を係止する。同様に、係止部28C、28Dはヨーク3の側壁32Bの上面と接してヨーク3を係止する。これにより、接着剤が乾くまでにヨーク3がフレーム2に対して変位することを防止できる。
Next, the yoke 3 is guided by the guide portion 102 constituted by the recesses 102 </ b> A and 102 </ b> B provided in the jig 10, and the yoke 3 is coupled to the frame 2. In this step, an adhesive is first applied to the stepped portions 35A and 35B of the yoke 3. The convex portion 31A of the yoke 3 is fitted into the concave portion 102A from above, and is guided and moved downward along the concave portion 102A. At the same time, the convex portion 31B of the yoke 3 is fitted into the concave portion 102B from above, and is guided and moved downward along the concave portion 102B. Thereafter, the stepped portions 35A and 35B of the yoke 3 and the projecting portions 27A and 27B of the frame 2 are joined by the adhesive applied to the stepped portions 35A and 35B. At this time, the lock portions 25A and 25B of the frame 2 press the outer surfaces of the side walls 32A and 32B of the yoke 3 toward the opening 212A of the frame 2, respectively. The locking portions 28 </ b> A and 28 </ b> B are in contact with the upper surface of the side wall 32 </ b> A of the yoke 3 to lock the yoke 3. Similarly, the locking portions 28 </ b> C and 28 </ b> D are in contact with the upper surface of the side wall 32 </ b> B of the yoke 3 to lock the yoke 3. Thereby, it is possible to prevent the yoke 3 from being displaced with respect to the frame 2 until the adhesive is dried.
次に、治具10に設けられたガイド部102で、マグネット4が結合されたプレート5がガイドされ、マグネット4とヨーク3とが結合される。この工程では、まず、マグネット4の上面とプレート5の底面とが接着剤によって接合されて固定される。マグネット4の下面には接着剤が塗布される。その後、マグネット4がプレート5より下方に位置する状態で、プレート5の凸部51Aが凹部102Aに上から嵌め込まれて凹部102Aに沿って下向きにガイドされて移動し、同時に、プレート5の凸部51Bが凹部102Bに上から嵌め込まれて凹部102Bに沿って下向きにガイドされて移動する。そして、マグネット4の下面がヨーク3の窪部34に嵌め込まれて接合され、接着剤によって固定される。このように、マグネット4に接合されたプレート5とヨーク3とが共にガイド部102によってガイドされるので、ヨーク3の側壁32Aとプレート5との間の磁気ギャップ301Aの間隔と、ヨーク3の側壁32Bとプレート5との間の磁気ギャップ301Bの間隔とが常に一定に保たれた磁気回路1Aを製造することができる。
Next, the plate 5 to which the magnet 4 is coupled is guided by the guide portion 102 provided in the jig 10, and the magnet 4 and the yoke 3 are coupled. In this step, first, the upper surface of the magnet 4 and the bottom surface of the plate 5 are bonded and fixed by an adhesive. An adhesive is applied to the lower surface of the magnet 4. Thereafter, in a state where the magnet 4 is positioned below the plate 5, the convex portion 51A of the plate 5 is fitted into the concave portion 102A from above and guided and moved downward along the concave portion 102A. 51B is fitted into the recess 102B from above and guided and moved downward along the recess 102B. Then, the lower surface of the magnet 4 is fitted and joined in the recess 34 of the yoke 3 and is fixed by an adhesive. As described above, since the plate 5 and the yoke 3 joined to the magnet 4 are both guided by the guide portion 102, the distance between the magnetic gap 301 A between the side wall 32 A of the yoke 3 and the plate 5, and the side wall of the yoke 3. A magnetic circuit 1A in which the gap of the magnetic gap 301B between 32B and the plate 5 is always kept constant can be manufactured.
次に、治具10に設けられた凸部103A、103Bで構成されたガイド部103でボイスコイル6がガイドされて、ガイド部101の上面601A、601Bに載置される。この工程では、凸部103Aの湾曲部103Cとボイスコイル6の端部63Aの内側面とが接するようにボイスコイル6の端部63Aが凸部103Aに上から嵌め込まれて凸部103Aに沿って下向きにガイドされて移動される。同時に、凸部103Bの湾曲部103Dとボイスコイル6の端部63Bの内側面とが接するようにボイスコイル6の端部63Bが凸部103Bに上から嵌め込まれて凸部103Bに沿って下向きにガイドされて移動される。そして、ボイスコイル6の端部63A、63Bの下面が凸部101A、101Bの上面に載置される。ボイスコイル6の高さt1がガイド部101の上面601A、601Bからガイド部103の上面603A、603Bまでの高さt2よりも大きいので、ボイスコイル6はガイド部103の凸部103A、103Bの上面603A、603Bより上方に突出する。
Next, the voice coil 6 is guided by the guide portion 103 constituted by the convex portions 103A and 103B provided on the jig 10, and placed on the upper surfaces 601A and 601B of the guide portion 101. In this step, the end portion 63A of the voice coil 6 is fitted into the convex portion 103A from above so that the curved portion 103C of the convex portion 103A and the inner surface of the end portion 63A of the voice coil 6 are in contact with each other along the convex portion 103A. Guided downward and moved. At the same time, the end portion 63B of the voice coil 6 is fitted into the convex portion 103B from above so that the curved portion 103D of the convex portion 103B and the inner surface of the end portion 63B of the voice coil 6 are in contact with each other, and downward along the convex portion 103B. Guided and moved. Then, the lower surfaces of the end portions 63A and 63B of the voice coil 6 are placed on the upper surfaces of the convex portions 101A and 101B. Since the height t1 of the voice coil 6 is larger than the height t2 from the upper surfaces 601A and 601B of the guide portion 101 to the upper surfaces 603A and 603B of the guide portion 103, the voice coil 6 is the upper surface of the convex portions 103A and 103B of the guide portion 103. Projects upward from 603A and 603B.
この工程により、ボイスコイル6の内側面はヨーク3とプレート5とをガイドする治具10でガイドされるので、治具を使用せずにボイスコイル6とヨーク3とプレート5を組み合わせる従来の製造方法と比較してボイスコイル6の内側面とプレート5間の間隔を均一にすることができ、品質を向上することができる。さらに、従来の製造方法よりボイスコイル6の内側面とプレート5間の間隔を狭くすることができ、磁気ギャップ301A、301Bの磁束密度を高くすることができるので、スピーカ1の性能を向上することができる。
By this process, the inner surface of the voice coil 6 is guided by the jig 10 that guides the yoke 3 and the plate 5, so that the conventional manufacturing is performed by combining the voice coil 6, the yoke 3, and the plate 5 without using the jig. Compared with the method, the distance between the inner surface of the voice coil 6 and the plate 5 can be made uniform, and the quality can be improved. Further, the distance between the inner surface of the voice coil 6 and the plate 5 can be narrowed compared to the conventional manufacturing method, and the magnetic flux density of the magnetic gaps 301A and 301B can be increased, so that the performance of the speaker 1 is improved. Can do.
次に、振動板7をフレーム2とボイスコイル6とに結合する。この工程では、まず、フレーム2の載置部29と振動板7の内周部72の下面に接着剤が塗布される。そして、フレーム2の載置部29と振動板7の外周部71の下面とが接着剤によって接合されて固定されると同時に、ボイスコイル6の上面6Aと振動板7の内周部72の下面とが接着剤によって接合されて固定される。
Next, the diaphragm 7 is coupled to the frame 2 and the voice coil 6. In this step, first, an adhesive is applied to the lower surface of the placement portion 29 of the frame 2 and the inner peripheral portion 72 of the diaphragm 7. The mounting portion 29 of the frame 2 and the lower surface of the outer peripheral portion 71 of the diaphragm 7 are joined and fixed by an adhesive, and at the same time, the upper surface 6A of the voice coil 6 and the lower surface of the inner peripheral portion 72 of the diaphragm 7 are fixed. Are bonded and fixed by an adhesive.
次に、プロテクタ8がフレーム2に結合される。この工程では、プロテクタ8のロック部81A、81Bにフレーム2のロック爪24A、24Bがそれぞれ引っかけられ、これにより、プロテクタ8がフレーム2に装着される。さらに、フレーム2とプロテクタ8が接着剤によって接合され固定されてスピーカ1が完成する。その後、治具1からスピーカ1を抜き取る。
Next, the protector 8 is coupled to the frame 2. In this step, the lock claws 24A and 24B of the frame 2 are respectively hooked on the lock portions 81A and 81B of the protector 8, whereby the protector 8 is attached to the frame 2. Furthermore, the frame 2 and the protector 8 are joined and fixed by an adhesive, and the speaker 1 is completed. Thereafter, the speaker 1 is extracted from the jig 1.
以上より、プレート5とヨーク3との間の磁気ギャップ301A、301Bを狭めてスピーカ1の性能を向上させ、かつ位置ずれを防いでスピーカ1の歩留まりを向上させて製造コストを下げることができる。また、各部品を順次上から嵌め込めばスピーカ1を製造することができるので、無駄な工程が少なく、製造工程を自動化することができ、さらに製造コストを下げることができる。また、フレーム2とヨーク3をモールドする工程が不要になるので、さらにスピーカ1の製造コストを下げることができる。
As described above, the magnetic gaps 301A and 301B between the plate 5 and the yoke 3 can be narrowed to improve the performance of the speaker 1, and the positional deviation can be prevented to improve the yield of the speaker 1, thereby reducing the manufacturing cost. Further, since the speaker 1 can be manufactured by fitting each component from above, there are few unnecessary processes, the manufacturing process can be automated, and the manufacturing cost can be further reduced. Further, since the process of molding the frame 2 and the yoke 3 is not necessary, the manufacturing cost of the speaker 1 can be further reduced.
上述の製造方法では、治具10のガイド部103によってボイスコイル6がガイドされ、ボイスコイル6がガイド部101の上面601A、601Bに載置され、その後、ボイスコイル6の上面6Aと振動板7の内周部72の下面とが接着剤によって接合され固定される。
In the above-described manufacturing method, the voice coil 6 is guided by the guide portion 103 of the jig 10, the voice coil 6 is placed on the upper surfaces 601 </ b> A and 601 </ b> B of the guide portion 101, and then the upper surface 6 </ b> A of the voice coil 6 and the diaphragm 7. The lower surface of the inner peripheral portion 72 is joined and fixed by an adhesive.
実施の形態1では、ボイスコイル6の上面6Aに振動板7の内周部72の下面が接着剤によって接合されて固定された後で、治具10のガイド部103でボイスコイル6がガイドされて、ボイスコイル6がガイド部101の上面601A、601Bに載置されてもよい。この場合には、ボイスコイル6がガイド部101の上面601A、601Bに載置される前にフレーム2の載置部29に接着剤が塗布され、ボイスコイル6がガイド部101の上面601A、601Bに載置されるときにフレーム2の載置部29と振動板7の外周部71の下面とが接着剤によって接合され固定される。この工程は、ボイスコイル6が大きい振幅で振動するスピーカ1を製造する場合に適している。
In the first embodiment, the voice coil 6 is guided by the guide portion 103 of the jig 10 after the lower surface of the inner peripheral portion 72 of the diaphragm 7 is bonded and fixed to the upper surface 6A of the voice coil 6 with an adhesive. The voice coil 6 may be placed on the upper surfaces 601A and 601B of the guide portion 101. In this case, an adhesive is applied to the placement portion 29 of the frame 2 before the voice coil 6 is placed on the upper surfaces 601A and 601B of the guide portion 101, and the voice coil 6 is attached to the upper surfaces 601A and 601B of the guide portion 101. When mounted on the frame 2, the mounting portion 29 of the frame 2 and the lower surface of the outer peripheral portion 71 of the diaphragm 7 are joined and fixed by an adhesive. This process is suitable for manufacturing the speaker 1 in which the voice coil 6 vibrates with a large amplitude.
実施の形態1によるスピーカ1の製造装置である治具10は、凸部101A、103Aと凹部102Aとが一体に形成された取付部11と、凸部101B、103Bと凹部102Bとが一体に形成された取付部12とを備える。ガイド部101、102、103がそれぞれ別々の部材として治具10に設けられてもよい。この場合、ガイド部102の凹部102A、102Bを形成するコの字状の凸部が載置面100から突出する。また、凸部103A、103Bに載置面100から新たな載置部が突出して、この新たな載置部の上面から凸部103Aまでの高さと、新たな載置部の上面から凸部103Bの上面までの高さとが同じ高さt3である。
The jig 10 that is the manufacturing apparatus of the speaker 1 according to the first embodiment has the mounting portion 11 in which the convex portions 101A and 103A and the concave portion 102A are integrally formed, and the convex portions 101B and 103B and the concave portion 102B are integrally formed. The mounting part 12 is provided. The guide portions 101, 102, and 103 may be provided on the jig 10 as separate members. In this case, the U-shaped convex portions that form the concave portions 102 </ b> A and 102 </ b> B of the guide portion 102 protrude from the placement surface 100. Further, a new placement portion protrudes from the placement surface 100 to the projections 103A and 103B, and the height from the upper surface of the new placement portion to the projection 103A, and the projection 103B from the upper surface of the new placement portion. Is the same height t3.
実施の形態1では、ガイド部102は凹部102A、102Bで構成されている。ヨーク3に設けられた凸部31A、31Bとプレート5に設けられた凸部51A、51Bはガイド部102の凹部102A、102Bによってガイドされる。ヨーク3とプレート5とが別々のガイド部によってガイドされてもよい。
In Embodiment 1, the guide part 102 is comprised by the recessed parts 102A and 102B. The convex portions 31A and 31B provided on the yoke 3 and the convex portions 51A and 51B provided on the plate 5 are guided by the concave portions 102A and 102B of the guide portion 102. The yoke 3 and the plate 5 may be guided by separate guide portions.
(実施の形態2)
図12は実施の形態2によるスピーカのヨーク703の上面図である。図13は実施の形態2によるスピーカのプレート705の上面図である。図14Aと図14Bは実施の形態2によるスピーカの製造装置である治具710の上面図と正面図である。図12から図14Bにおいて、図1Aから図11に示すスピーカ1や治具10と同じ部分には同じ参照番号を付す。図14Aと図14Bに示すように、実施の形態2による治具710は、実施の形態1による治具10の取付部11、12の代わりに載置面100上に設けられた取付部711、712を備え、実施の形態1による治具10のガイド部102の代わりにガイド部702を備える。実施の形態2によるガイド部702は、実施の形態1によるガイド部102の凹部102A、102Bの代わりに、凸部702A、702Bを有する。凸部702Aは、取付部711の外周部101Lの取付部712に対向する部分101Nから取付部702Bに向かって突出する。凸部702Bは、取付部712の外周部101Mの取付部711に対向する部分101Pから取付部711に向かって突出する。図12に示すように、ヨーク73の底板203の端部203E、203Fには凹部731A、731Bがそれぞれ設けられている。図13に示すように、プレート705の端部205E、205Fに凹部751A、751Bがそれぞれ設けられている。ヨーク703の凹部731Aとプレート705の凹部751Aは、ガイド部702の凸部702Aにガイドされる。同時に、ヨーク703の凹部731Bとプレート705の凹部751Bは、ガイド部702の凸部702Bにガイドされる。 (Embodiment 2)
FIG. 12 is a top view of theyoke 703 of the speaker according to the second embodiment. FIG. 13 is a top view of the speaker plate 705 according to the second embodiment. 14A and 14B are a top view and a front view of a jig 710 which is a speaker manufacturing apparatus according to Embodiment 2. FIG. 12B, the same reference numerals are assigned to the same parts as those of the speaker 1 and the jig 10 shown in FIGS. As shown in FIGS. 14A and 14B, the jig 710 according to the second embodiment includes an attachment portion 711 provided on the placement surface 100 instead of the attachment portions 11 and 12 of the jig 10 according to the first embodiment. 712 and a guide portion 702 instead of the guide portion 102 of the jig 10 according to the first embodiment. The guide portion 702 according to the second embodiment has convex portions 702A and 702B instead of the concave portions 102A and 102B of the guide portion 102 according to the first embodiment. The convex portion 702A protrudes from the portion 101N facing the mounting portion 712 of the outer peripheral portion 101L of the mounting portion 711 toward the mounting portion 702B. The convex portion 702B protrudes from the portion 101P facing the attachment portion 711 of the outer peripheral portion 101M of the attachment portion 712 toward the attachment portion 711. As shown in FIG. 12, the end portions 203E and 203F of the bottom plate 203 of the yoke 73 are provided with recesses 731A and 731B, respectively. As shown in FIG. 13, recesses 751 </ b> A and 751 </ b> B are provided at end portions 205 </ b> E and 205 </ b> F of the plate 705, respectively. The concave portion 731A of the yoke 703 and the concave portion 751A of the plate 705 are guided by the convex portion 702A of the guide portion 702. At the same time, the concave portion 731B of the yoke 703 and the concave portion 751B of the plate 705 are guided by the convex portion 702B of the guide portion 702.
図12は実施の形態2によるスピーカのヨーク703の上面図である。図13は実施の形態2によるスピーカのプレート705の上面図である。図14Aと図14Bは実施の形態2によるスピーカの製造装置である治具710の上面図と正面図である。図12から図14Bにおいて、図1Aから図11に示すスピーカ1や治具10と同じ部分には同じ参照番号を付す。図14Aと図14Bに示すように、実施の形態2による治具710は、実施の形態1による治具10の取付部11、12の代わりに載置面100上に設けられた取付部711、712を備え、実施の形態1による治具10のガイド部102の代わりにガイド部702を備える。実施の形態2によるガイド部702は、実施の形態1によるガイド部102の凹部102A、102Bの代わりに、凸部702A、702Bを有する。凸部702Aは、取付部711の外周部101Lの取付部712に対向する部分101Nから取付部702Bに向かって突出する。凸部702Bは、取付部712の外周部101Mの取付部711に対向する部分101Pから取付部711に向かって突出する。図12に示すように、ヨーク73の底板203の端部203E、203Fには凹部731A、731Bがそれぞれ設けられている。図13に示すように、プレート705の端部205E、205Fに凹部751A、751Bがそれぞれ設けられている。ヨーク703の凹部731Aとプレート705の凹部751Aは、ガイド部702の凸部702Aにガイドされる。同時に、ヨーク703の凹部731Bとプレート705の凹部751Bは、ガイド部702の凸部702Bにガイドされる。 (Embodiment 2)
FIG. 12 is a top view of the
(実施の形態3)
図15は本発明の実施の形態3によるスピーカ1の分解斜視図である。図15において、図1Aから図11に示す実施の形態1によるスピーカ1と同じ部分には同じ参照番号を付す。図15に示すスピーカ1は図1Aに示す製造装置である治具10の代わりに製造装置である治具10Aで製造される。治具10Aは、図1Aに示す製造装置である治具10の取付部11、12の代わりに、台座100Aの載置面100上に設けられた取付部11A、12Aを備える。図16A、図16B、図16Cはスピーカ1を製造する製造装置である治具10Aのそれぞれ上面図、側面図、正面図である。図17は取付部11Aの上面図である。図18は取付部12Aの上面図である。図16Aから図18において、図9から図11に示す実施の形態1による製造装置である治具10と同じ部分には同じ参照番号を付す。治具10Aは図9に示す治具10のガイド部103の代わりにガイド部803を備える。取付部11Aは、実施の形態1による取付部11の凸部103Aの代わりに、凸部101Aの上面601Aから突出する凸部803G、803Hを有する。凸部803G、803H間に凹部102Aが位置する。凸部803G、803Hは、ボイスコイル6の端部63Aの内側面に一致する形状を有する湾曲部103G、103Hをそれぞれ有する。取付部12Aは、実施の形態1による取付部12の凸部103Bの代わりに、凸部101Bの上面601Bから突出する凸部803J、803Kを有する。凸部803J、803K間に凹部102Bが位置する。凸部803J、803Kは、ボイスコイル6の端部63Bの内側面に一致する形状を有する湾曲部103J、103Kをそれぞれ有する。 (Embodiment 3)
FIG. 15 is an exploded perspective view of thespeaker 1 according to the third embodiment of the present invention. 15, the same reference numerals are assigned to the same parts as those of the speaker 1 according to the first embodiment shown in FIGS. 1A to 11. The speaker 1 shown in FIG. 15 is manufactured by a jig 10A which is a manufacturing apparatus instead of the jig 10 which is the manufacturing apparatus shown in FIG. 1A. The jig 10A includes mounting parts 11A and 12A provided on the mounting surface 100 of the base 100A, instead of the mounting parts 11 and 12 of the jig 10 which is the manufacturing apparatus shown in FIG. 1A. 16A, 16B, and 16C are a top view, a side view, and a front view, respectively, of a jig 10A that is a manufacturing apparatus for manufacturing the speaker 1. FIG. FIG. 17 is a top view of the attachment portion 11A. FIG. 18 is a top view of the mounting portion 12A. 16A to 18, the same reference numerals are assigned to the same portions as those of the jig 10 that is the manufacturing apparatus according to the first embodiment shown in FIGS. 9 to 11. The jig 10A includes a guide portion 803 instead of the guide portion 103 of the jig 10 shown in FIG. 11 A of attachment parts have the convex parts 803G and 803H which protrude from the upper surface 601A of the convex part 101A instead of the convex part 103A of the attachment part 11 by Embodiment 1. FIG. The concave portion 102A is located between the convex portions 803G and 803H. The convex portions 803G and 803H have curved portions 103G and 103H having shapes that coincide with the inner surface of the end portion 63A of the voice coil 6, respectively. 12 A of attachment parts have the convex parts 803J and 803K which protrude from the upper surface 601B of the convex part 101B instead of the convex part 103B of the attachment part 12 by Embodiment 1. FIG. The concave portion 102B is located between the convex portions 803J and 803K. The convex portions 803J and 803K have curved portions 103J and 103K having shapes that coincide with the inner surface of the end portion 63B of the voice coil 6, respectively.
図15は本発明の実施の形態3によるスピーカ1の分解斜視図である。図15において、図1Aから図11に示す実施の形態1によるスピーカ1と同じ部分には同じ参照番号を付す。図15に示すスピーカ1は図1Aに示す製造装置である治具10の代わりに製造装置である治具10Aで製造される。治具10Aは、図1Aに示す製造装置である治具10の取付部11、12の代わりに、台座100Aの載置面100上に設けられた取付部11A、12Aを備える。図16A、図16B、図16Cはスピーカ1を製造する製造装置である治具10Aのそれぞれ上面図、側面図、正面図である。図17は取付部11Aの上面図である。図18は取付部12Aの上面図である。図16Aから図18において、図9から図11に示す実施の形態1による製造装置である治具10と同じ部分には同じ参照番号を付す。治具10Aは図9に示す治具10のガイド部103の代わりにガイド部803を備える。取付部11Aは、実施の形態1による取付部11の凸部103Aの代わりに、凸部101Aの上面601Aから突出する凸部803G、803Hを有する。凸部803G、803H間に凹部102Aが位置する。凸部803G、803Hは、ボイスコイル6の端部63Aの内側面に一致する形状を有する湾曲部103G、103Hをそれぞれ有する。取付部12Aは、実施の形態1による取付部12の凸部103Bの代わりに、凸部101Bの上面601Bから突出する凸部803J、803Kを有する。凸部803J、803K間に凹部102Bが位置する。凸部803J、803Kは、ボイスコイル6の端部63Bの内側面に一致する形状を有する湾曲部103J、103Kをそれぞれ有する。 (Embodiment 3)
FIG. 15 is an exploded perspective view of the
本発明による製造方法により、スピーカのプレートとヨークの間のギャップを狭くすることができ、スピーカを良好な歩留まりで製造することができ、製造コストを下げることができる。したがって、この製造方法によって製造されるスピーカは携帯電話などの小型の音響機器や電子機器に用いられるスピーカとして有用である。
With the manufacturing method according to the present invention, the gap between the speaker plate and the yoke can be narrowed, the speaker can be manufactured with a good yield, and the manufacturing cost can be reduced. Therefore, the speaker manufactured by this manufacturing method is useful as a speaker used for small acoustic devices such as mobile phones and electronic devices.
1 スピーカ
2 フレーム
3 ヨーク
4 マグネット
5 プレート
6 ボイスコイル
7 振動板
8 プロテクタ
10 治具(製造装置)
31 ガイド体部(第1のガイド体部)
31A 凸部
31B 凸部
51 ガイド体部(第2のガイド体部)
51A 凸部
51B 凸部
81A ロック部
81B ロック部
101 ガイド部(第1のガイド部)
102 ガイド部(第2のガイド部)
102A 凹部
102B 凹部
103 ガイド部(第3のガイド部)
103E 凸部
103F 凸部
203 底板
205 基板 1Speaker 2 Frame 3 Yoke 4 Magnet 5 Plate 6 Voice Coil 7 Diaphragm 8 Protector 10 Jig (Manufacturing Equipment)
31 Guide body (first guide body)
31A Convex part 31B Convex part 51 Guide body part (second guide body part)
51A Convex part 51B Convex part 81A Lock part 81B Lock part 101 Guide part (first guide part)
102 Guide part (second guide part)
102AConcave part 102B Concave part 103 Guide part (third guide part)
103E Convex part 103FConvex part 203 Bottom plate 205 Substrate
2 フレーム
3 ヨーク
4 マグネット
5 プレート
6 ボイスコイル
7 振動板
8 プロテクタ
10 治具(製造装置)
31 ガイド体部(第1のガイド体部)
31A 凸部
31B 凸部
51 ガイド体部(第2のガイド体部)
51A 凸部
51B 凸部
81A ロック部
81B ロック部
101 ガイド部(第1のガイド部)
102 ガイド部(第2のガイド部)
102A 凹部
102B 凹部
103 ガイド部(第3のガイド部)
103E 凸部
103F 凸部
203 底板
205 基板 1
31 Guide body (first guide body)
102 Guide part (second guide part)
102A
103E Convex part 103F
Claims (17)
- 第1のガイド部と第2のガイド部と第3のガイド部とを備えた製造装置を準備するステップと、
フレームが前記第1のガイド部にガイドされて前記製造装置に前記フレームを載置するステップと、
ヨークが前記第2のガイド部にガイドされて前記フレームと前記ヨークとを結合するステップと、
マグネットが接合されたプレートが前記第2のガイド部にガイドされて前記マグネットと前記ヨークとを結合するステップと、
ボイスコイルが前記第3のガイド部にガイドされて前記製造装置に前記ボイスコイルを載置するステップと、
前記ボイスコイルと振動板とを結合するステップと、
前記フレームと前記振動板とを結合するステップと、
前記フレームと前記ヨークとを結合するステップと前記マグネットと前記ヨークとを結合するステップと前記フレームと前記振動板とを結合するステップとの後で、前記フレームと前記ヨークと前記プレートと前記マグネットと前記ボイスコイルと前記振動板とを前記製造装置から抜き取るステップと、
を含む、スピーカの製造方法。 Preparing a manufacturing apparatus including a first guide portion, a second guide portion, and a third guide portion;
Placing the frame on the manufacturing apparatus with the frame guided by the first guide portion;
A yoke is guided by the second guide portion to couple the frame and the yoke;
A plate to which a magnet is joined is guided by the second guide portion to couple the magnet and the yoke;
Placing the voice coil on the manufacturing apparatus with the voice coil being guided by the third guide part;
Coupling the voice coil and the diaphragm;
Coupling the frame and the diaphragm;
After the step of coupling the frame and the yoke, the step of coupling the magnet and the yoke, and the step of coupling the frame and the diaphragm, the frame, the yoke, the plate, and the magnet Extracting the voice coil and the diaphragm from the manufacturing apparatus;
A method for manufacturing a speaker, comprising: - 前記ボイスコイルと前記振動板とを結合するステップは、前記製造装置に前記ボイスコイルを載置するステップの間で行われる、請求項1に記載のスピーカの製造方法。 The speaker manufacturing method according to claim 1, wherein the step of coupling the voice coil and the diaphragm is performed between the steps of placing the voice coil on the manufacturing apparatus.
- 前記ボイスコイルと前記振動板とを結合するステップは、前記フレームと前記振動板とを結合するステップの間で行われる、請求項1に記載のスピーカの製造方法。 The speaker manufacturing method according to claim 1, wherein the step of coupling the voice coil and the diaphragm is performed between the step of coupling the frame and the diaphragm.
- 前記フレームは開口部を有し、
前記ヨークは両端に第1のガイド体部を有し、
前記プレートは両端に第2のガイド体部を有し、
前記製造装置に前記フレームを載置するステップは、前記第1のガイド部に前記フレームの前記開口部の内側面がガイドされて前記製造装置に前記フレームを載置するステップを含み、
前記フレームと前記ヨークとを結合するステップは、前記第2のガイド部に前記第1のガイド体部がガイドされて前記フレームと前記ヨークとを結合するステップを含み、
前記マグネットと前記ヨークとを結合するステップは、前記第2のガイド部に前記プレートの前記第2のガイド体部がガイドされて前記マグネットと前記ヨークとを結合するステップを含み、
前記製造装置に前記ボイスコイルを載置するステップは、前記第3のガイド部に前記ボイスコイルの内側面がガイドされて前記製造装置に前記ボイスコイルを載置するステップを含む、請求項1に記載のスピーカの製造方法。 The frame has an opening;
The yoke has first guide body portions at both ends,
The plate has second guide body portions at both ends,
The step of placing the frame on the manufacturing apparatus includes the step of placing the frame on the manufacturing apparatus with an inner surface of the opening of the frame guided by the first guide portion,
The step of coupling the frame and the yoke includes the step of coupling the frame and the yoke by guiding the first guide body portion to the second guide portion,
The step of coupling the magnet and the yoke includes the step of coupling the magnet and the yoke by guiding the second guide body portion of the plate to the second guide portion,
2. The step of placing the voice coil on the manufacturing apparatus includes a step of placing the voice coil on the manufacturing apparatus with an inner surface of the voice coil guided by the third guide portion. The manufacturing method of the speaker of description. - 前記ヨークは、長辺と短辺とを有する矩形状を有する底板をさらに有し、
前記ヨークの前記第1のガイド体部は前記短辺に対応する前記底板の両端に設けられており、
前記プレートは、長辺と短辺とを有する矩形状の基板をさらに有し、
前記プレートの前記第2のガイド体部は前記短辺に対応する前記基板の両端に設けられている、請求項4に記載のスピーカの製造方法。 The yoke further includes a bottom plate having a rectangular shape having a long side and a short side;
The first guide body portion of the yoke is provided at both ends of the bottom plate corresponding to the short side;
The plate further includes a rectangular substrate having a long side and a short side,
The speaker manufacturing method according to claim 4, wherein the second guide body portion of the plate is provided at both ends of the substrate corresponding to the short side. - 前記第1のガイド部は2つの凸部を有し
前記第2のガイド部は2つの凹部を有し、
前記第3のガイド部は2つの凸部を有し、
前記第1のガイド体部は2つの凸部を有し、
前記第2のガイド体部は2つの凸部を有する、請求項4に記載のスピーカの製造方法。 The first guide part has two convex parts, and the second guide part has two concave parts,
The third guide portion has two convex portions,
The first guide body portion has two convex portions,
The speaker manufacturing method according to claim 4, wherein the second guide body portion has two convex portions. - プロテクタで前記振動板を覆うように、前記フレームと前記プロテクタとを結合するステップをさらに含む、請求項1に記載のスピーカの製造方法。 The method for manufacturing a speaker according to claim 1, further comprising a step of coupling the frame and the protector so as to cover the diaphragm with a protector.
- 前記第1のガイド部と前記第2のガイド部と前記第3のガイド部とのうちの少なくとも2つが一体に形成されている、請求項1に記載のスピーカの製造方法。 The speaker manufacturing method according to claim 1, wherein at least two of the first guide part, the second guide part, and the third guide part are integrally formed.
- スピーカを製造する製造装置であって、
第1のガイド部と第2のガイド部と第3のガイド部とを備え、
前記スピーカは、
開口部を有するフレームと、
前記フレームの内側面に結合されたヨークと、
前記ヨークに結合されたマグネットと、
前記マグネットの上面に結合され、前記ヨークとの間に磁気ギャップを形成するプレートと、
前記フレームに結合された振動板と、
前記振動板の下面に結合され、前記磁気ギャップ内に位置する部分を有するボイスコイルと、
を備え、
前記ヨークは両端に設けられた第1のガイド体部を有し、
前記プレートは両端に設けられた第2のガイド体部を有し、
前記第1のガイド部は前記フレームをガイドして前記製造装置に前記フレームを載置し、
前記第2のガイド部は前記ヨークをガイドして前記フレームと前記ヨークとを結合させ、
前記第2のガイド部は前記マグネットが接合された前記プレートをガイドして前記マグネットと前記ヨークとを結合させ、
前記第3のガイド部は前記ボイスコイルをガイドして前記製造装置に前記ボイスコイルを載置する、製造装置。 A manufacturing apparatus for manufacturing a speaker,
A first guide portion, a second guide portion, and a third guide portion;
The speaker is
A frame having an opening;
A yoke coupled to the inner surface of the frame;
A magnet coupled to the yoke;
A plate coupled to an upper surface of the magnet and forming a magnetic gap with the yoke;
A diaphragm coupled to the frame;
A voice coil coupled to the lower surface of the diaphragm and having a portion located within the magnetic gap;
With
The yoke has first guide body portions provided at both ends,
The plate has second guide body portions provided at both ends,
The first guide portion guides the frame and places the frame on the manufacturing apparatus,
The second guide portion guides the yoke to couple the frame and the yoke;
The second guide portion guides the plate to which the magnet is joined to couple the magnet and the yoke;
The third guide unit guides the voice coil, and places the voice coil on the manufacturing apparatus. - 前記フレームは開口部を有し、
前記ヨークは両端に第1のガイド体部を有し、
前記プレートは両端に第2のガイド体部を有し、
前記第1のガイド部は前記フレームの前記開口部の内側面をガイドして前記製造装置に前記フレームを載置し、
前記第2のガイド部は前記第1のガイド体部をガイドして前記フレームと前記ヨークとを結合させ、
前記第2のガイド部は前記プレートの前記第2のガイド体部をガイドして前記マグネットと前記ヨークとを結合させ、
前記第3のガイド部は前記ボイスコイルの内側面をガイドして前記製造装置に前記ボイスコイルを載置させる、請求項9に記載の製造装置。 The frame has an opening;
The yoke has first guide body portions at both ends,
The plate has second guide body portions at both ends,
The first guide portion guides an inner surface of the opening of the frame and places the frame on the manufacturing apparatus,
The second guide part guides the first guide body part to couple the frame and the yoke;
The second guide portion guides the second guide body portion of the plate to couple the magnet and the yoke;
The manufacturing apparatus according to claim 9, wherein the third guide portion guides an inner surface of the voice coil to place the voice coil on the manufacturing apparatus. - 前記第1のガイド部と前記第2のガイド部と前記第3のガイド部とのうちの少なくとも2つが一体に形成されている、請求項9に記載の製造装置。 The manufacturing apparatus according to claim 9, wherein at least two of the first guide portion, the second guide portion, and the third guide portion are integrally formed.
- 前記第1のガイド部は2つの凸部を有し、
前記第2のガイド部は2つの凹部を有し、
前記第3のガイド部は2つの凸部を有する、請求項9に記載の製造装置。 The first guide part has two convex parts,
The second guide portion has two recesses,
The manufacturing apparatus according to claim 9, wherein the third guide portion has two convex portions. - 開口部を有するフレームと、
前記フレームの内側面に結合されたヨークと、
前記ヨークに結合されたマグネットと、
前記マグネットの上面に結合され、前記ヨークとの間に磁気ギャップを形成するプレートと、
前記フレームに結合された振動板と、
前記振動板の下面に結合され、前記磁気ギャップ内に位置する部分を有するボイスコイルと、
を備え、
前記ヨークは両端に設けられた第1のガイド体部を有し、
前記プレートは両端に設けられた第2のガイド体部を有する、スピーカ。 A frame having an opening;
A yoke coupled to the inner surface of the frame;
A magnet coupled to the yoke;
A plate coupled to an upper surface of the magnet and forming a magnetic gap with the yoke;
A diaphragm coupled to the frame;
A voice coil coupled to the lower surface of the diaphragm and having a portion located within the magnetic gap;
With
The yoke has first guide body portions provided at both ends,
The said plate has a 2nd guide body part provided in the both ends, The speaker. - 前記ヨークは、長辺と短辺とを有する矩形状を有する底板をさらに有し、
前記ヨークの前記第1のガイド体部は前記短辺に対応する前記底板の両端に設けられており、
前記プレートは、長辺と短辺とを有する矩形状の基板をさらに有し、
前記プレートの前記第2のガイド体部は前記短辺に対応する前記基板の両端に設けられている、請求項13に記載のスピーカ。 The yoke further includes a bottom plate having a rectangular shape having a long side and a short side;
The first guide body portion of the yoke is provided at both ends of the bottom plate corresponding to the short side;
The plate further includes a rectangular substrate having a long side and a short side,
The speaker according to claim 13, wherein the second guide body portion of the plate is provided at both ends of the substrate corresponding to the short side. - 前記第1のガイド体部は2つの凸部を有し、
前記第2のガイド体部は2つの凸部を有する、請求項13に記載のスピーカ。 The first guide body portion has two convex portions,
The speaker according to claim 13, wherein the second guide body portion has two convex portions. - 前記振動板を覆うように前記フレームと結合されたプロテクタをさらに備えた、請求項13に記載のスピーカ。 The speaker according to claim 13, further comprising a protector coupled to the frame so as to cover the diaphragm.
- 前記フレームは内側面に設けられて前記ヨークを固定するロック部を有する、請求項13に記載のスピーカ。 The speaker according to claim 13, wherein the frame includes a lock portion that is provided on an inner surface and fixes the yoke.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008203992A JP2010041548A (en) | 2008-08-07 | 2008-08-07 | Fixture used for manufacturing speaker, and speaker manufactured by this tool |
JP2008-203991 | 2008-08-07 | ||
JP2008203991A JP5326412B2 (en) | 2008-08-07 | 2008-08-07 | Speaker manufacturing method and speaker manufactured by the manufacturing method |
JP2008-203992 | 2008-08-07 |
Publications (1)
Publication Number | Publication Date |
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WO2010016208A1 true WO2010016208A1 (en) | 2010-02-11 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2009/003639 WO2010016208A1 (en) | 2008-08-07 | 2009-07-31 | Speaker, and manufacturing method and manufacturing device therefor |
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WO (1) | WO2010016208A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103248988A (en) * | 2012-02-02 | 2013-08-14 | 三星电子株式会社 | Speaker apparatus with N-divided magnet structure |
CN110933574A (en) * | 2019-11-30 | 2020-03-27 | 捷开通讯(深圳)有限公司 | Loudspeaker |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001245387A (en) * | 2000-03-01 | 2001-09-07 | Fujitsu Ten Ltd | Speaker |
JP2006222697A (en) * | 2005-02-09 | 2006-08-24 | Citizen Electronics Co Ltd | Micro speaker and its manufacturing method |
JP2006229656A (en) * | 2005-02-18 | 2006-08-31 | Star Micronics Co Ltd | Electroacoustic transducer |
-
2009
- 2009-07-31 WO PCT/JP2009/003639 patent/WO2010016208A1/en active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001245387A (en) * | 2000-03-01 | 2001-09-07 | Fujitsu Ten Ltd | Speaker |
JP2006222697A (en) * | 2005-02-09 | 2006-08-24 | Citizen Electronics Co Ltd | Micro speaker and its manufacturing method |
JP2006229656A (en) * | 2005-02-18 | 2006-08-31 | Star Micronics Co Ltd | Electroacoustic transducer |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103248988A (en) * | 2012-02-02 | 2013-08-14 | 三星电子株式会社 | Speaker apparatus with N-divided magnet structure |
CN110933574A (en) * | 2019-11-30 | 2020-03-27 | 捷开通讯(深圳)有限公司 | Loudspeaker |
CN110933574B (en) * | 2019-11-30 | 2021-06-15 | 捷开通讯(深圳)有限公司 | Loudspeaker |
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