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JPS54108620

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DESCRIPTION JPS54108620
Description 1, title of the invention
Speaker device
3. Detailed Description of the Invention The present invention provides a speaker device capable
of vibrating a diaphragm having a large area at a higher 1-1J wave number 1 and making it easy
to attach a high sound speaker ↓,. is there. As shown in FIG. 1 (d is a conventional speaker
device, a bass diaphragm and a drive unit 2 are provided with respect to the bass diaphragm 1,
and the middle treble is provided at the central portion of the bass diaphragm 1 A speaker 3 is
provided. In the figure, the knee is a 4td yoke, 5 is a ring-shaped one gui, tan, 7 is a yo (one
frame), Elj is a frame, 9! I'i voice goyle, 10 is a damper, 11 is a frame, 12 is a magnet, 13 is a pole
piece, 14 is a voice coil, and 15 is a diaphragm for medium to high temperature. In this speaker
device, since the diaphragm 1 having a large area is vibrated by one voice coil 9, divided
vibration is likely to occur, and it is difficult to realize piston vibration up to a high frequency.
There are various restrictions on the structure and mounting of the mid-high-pitched speaker 3
present in the hollow portion of the mid-high-pitched loudspeaker or the low-pitched diaphragm
1 drive unit 2, and hence it is difficult to make the description. Therefore, the present invention
(d is intended to provide a device capable of causing piston vibration at a high frequency size in
the case of << divided divided vibration or <<, and at the same time facilitating the mounting
design of a middle-high-pitched speaker). An embodiment of the present invention will now be
described with reference to the drawings. As shown in FIG. 2, a plurality of diaphragm drive parts
17a, 17b 17C, 17d, 17e and 17f are provided annularly on the back surface of one annular
diaphragm 16. Then, the speaker 18 for middle-high-pitched sound is disposed in the through
hole 27 provided at the center of the annular imaging plate 16 with EndPage: 1. Each diaphragm
drive part 17aL17f is connected by connecting members 19a, 19b, 19c 19d, 19f, and is
11-05-2019
1
mechanically integrated. The middle to high-tone speaker 18 is also fixed to the connecting
members 19a, 19c, 19e by the connecting members 20a, 20c, 20e. 3 is a cross-sectional view of
the drive unit 17a of FIG. 2 taken along line 8-A 'in FIG. 2. A ring-shaped magnet 22 is attached
to the yoke 21, and a ring-shaped yoke is attached to the magnet 22. Attach plate 23 and voice
coil 25. A damper 262 is provided and coupled to the moving plate 16. When configured as
described above and passing the signals of the same phase of the POICE coil 25 of all the
diaphragms and drive units 17.1 to 17f, the frequency is higher than when a single imaging plate
drive unit is provided. Since it can be vibrated and the central portion of the moving plate is a
through hole, it is intended to arrange a middle to high-tone speaker here.
4. Brief description of the drawings. FIG. 1 is a cross-sectional view of a conventional speaker
device, FIG. 2 is a plan view of the speaker device according to an embodiment of the present
invention, and FIG. Diagrams 016 · · · · · · Diaphragm, 17a to 17f · · · · · · · · 1 diaphragm driving
unit, 18 · · · · · · high-pitched sound speaker, 27 · · · · through hole. Name of Agent Attorney Nakao,
1 other EndPage: 2
11-05-2019
2
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