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Speaker unit, manufacturing method therefor and portable information terminal

A manufacturing method and a loudspeaker technology, which are applied to sensors, electrical components, circuit lead arrangement/elimination, etc., can solve problems such as disconnection of the wiring part, and achieve the effect of preventing the disconnection of the wiring part and preventing disconnection

Inactive Publication Date: 2011-11-23
SANYO ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, when the voice coil is displaced toward the diaphragm side, the wiring part may be excessively stretched and disconnected, or when the voice coil is displaced in the opposite direction to the above direction, the wiring part may be disconnected from the frame or the mounting surface. Other components such as yokes on the frame collide

Method used

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  • Speaker unit, manufacturing method therefor and portable information terminal
  • Speaker unit, manufacturing method therefor and portable information terminal
  • Speaker unit, manufacturing method therefor and portable information terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0018] figure 1 It is a plan view schematically showing the structure of the speaker unit according to Embodiment 1 of the present invention. also, figure 2 is along figure 1 A brief cross-sectional view of line II-II. in addition, image 3 yes figure 2 Brief magnification near arrow III of .

[0019] refer to Figure 1 ~ Figure 3 , The speaker unit 81 of this embodiment has a frame 31 , a diaphragm 32 , a magnet 33 , a pole piece 41 , a yoke 42 , and a voice coil 50 .

[0020] The frame 31 has a pair of terminals 61 , 62 . The vibrating piece 32 is supported by the frame 31 so as to be able to vibrate in the vibration direction DR (one direction). The terminals 61 and 62 each have a surface for connecting wiring, and the surface is perpendicular to the vibration direction DR.

[0021] The magnet 33 is arranged on the yoke 42 . Also, the yoke 42 is attached to the frame 31 . According to this configuration, the magnet 33 is fixed to the frame 31 via the yoke 42 . ...

Embodiment approach 2

[0052] Figure 20 It is a plan view schematically showing the structure of the speaker unit according to Embodiment 2 of the present invention. also, Figure 21 is through Figure 20 The viewpoint of the blank arrow schematically represents a partial side view of the structure of the voice coil.

[0053] refer to Figure 20 and Figure 21 The speaker unit 81v of the present embodiment includes a voice coil 50v instead of the voice coil 50 in the first embodiment. The voice coil 50v has wiring parts 51v and 52v. The wiring portions 51v and 52v are respectively drawn from one vertex of the polygonal shape of the winding portion 55 . The wiring parts 51v and 52v are pulled out from the winding part 55 so that there is no sharp bend in the wiring between the wiring part 51v and the winding part 55 and between the wiring part 52v and the winding part 55. around the direction to become co-winding.

[0054] Next, a method of mounting the voice coil 50v in the method of manufa...

Embodiment approach 3

[0063] Figure 23 It is a partial perspective view schematically showing the structure of the operation surface side of the portable information terminal according to Embodiment 3 of the present invention. also, Figure 24 is a schematic representation Figure 23 A partial perspective view of the structure of the back side of the portable information terminal.

[0064] refer to Figure 23 and Figure 24 , the portable information terminal of the present embodiment is a portable telephone, has an upper frame body 101, a display portion 102, a sound outlet 103, a hinge portion 104, a lower frame body 105, an operation button 106, a number button 107, and a display portion 111 , sound hole 112, a plurality of speaker units 81 (in Figure 23 and Figure 24 not shown).

[0065] A speaker unit 81 is built in the vicinity of the sound outlet 103 as a receiver for generating received sound or the like. In addition, another speaker 81 is built in the vicinity of the sound hole ...

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Abstract

Provided are a speaker unit with which disconnection of wire parts or impact with other members can be prevented, a manufacturing method therefor and a portable information terminal. A frame (31) comprises terminals (61, 62). A diaphragm (32) is supported by the frame (31) to be able to vibrate in one direction (DR). A magnet (33) is affixed to the frame (31). A voice coil (50) comprises a coil part (55) and wire parts (51, 52). The coil part (55) is affixed to the diaphragm (32) to receive the magnetic field from the magnet (33). The wire parts (51, 52) electrically connect the coil part (55) and the terminals (61, 62). The wire parts (51, 52) have bends (BD) that are bent in the one direction (DR) from the coil (55) toward the terminals (61, 62).

Description

technical field [0001] The present invention relates to a loudspeaker unit, a manufacturing method of the loudspeaker unit and a portable information terminal, in particular to a loudspeaker unit with a voice coil, a manufacturing method of the loudspeaker unit and a portable information terminal. Background technique [0002] The speaker unit includes a speaker unit using a voice coil. For example, according to Japanese Patent Application Laid-Open No. 2002-354583, a speaker has a frame, a diaphragm, a voice coil, and a pair of terminal members. The frame supports the outer peripheral portion of the vibrating piece from the lower surface side. The voice coil is fixed on the lower surface of the vibrating piece. In addition, a pair of lead wires extending from the voice coil are conductively fixed to a pair of terminal members mounted on the frame. [0003] Patent Document 1: Japanese Patent Laid-Open No. 2002-354583 [0004] In recent years, portable information termina...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R9/04H04R31/00
CPCH04R31/00H04R9/045H04R1/06H04R2499/11Y10T29/49005
Inventor 小须田和之畠中有纪
Owner SANYO ELECTRIC CO LTD
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