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JPS5748895

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DESCRIPTION JPS5748895
DESCRIPTION OF THE PREFERRED EMBODIMENTS A diaphragm for full surface drive type
speaker (1) A diaphragm for a full surface drive type speaker having a voice coil portion formed
on one side of a metal diaphragm substrate through an insulating layer.
2, the scope of claims
Detailed Description of the Invention The present invention relates to a diaphragm for full drive
speaker, and more particularly to a diaphragm substrate made of metal, or a full drive
loudspeaker having high heat resistance, using a part of a voice coil portion as an insulating
layer. The present invention relates to a diaphragm for use. Aluminum foil layer is laminated on a
plastic film such as diaphragm, polyimide, etc., which is used in full drive type speakers, and then
bbhus is formed by evaporation, is this aluminum? ImT-coil formed by etching / processing,
relatively high heat resistance polyimide, even if it is 6 polyamide heat limit U300 ° C around,
other plastic film is less than that Furthermore, there is a problem that high-frequency tones can
not be expressed flat because the intensity is weak. Therefore, the present invention can form a
diaphragm in which the voice coil St is integrally formed on the diaphragm, and an insulating
layer is formed on either of them, so that a diaphragm can be expressed with high heat resistance
and high range sound flat. It is characterized by Hereinafter, the present invention will be
described in detail with reference to the attached drawings. First, FIG. 1 is a plan view of a
diaphragm according to the present invention, in which a voice coil portion is provided in a spiral
shape on one surface of a diaphragm substrate l. An insulating layer is formed. The diaphragm of
such a configuration is manufactured in such a manner that the manufacturing process is
indicated at the second failure. That is, the insulating layer-is formed on only one side of the
aluminum foil plate 1 by anodizing treatment (FIG. 2 ◇). Then, a metal film 3 such as palladium
IJIJ is formed on the surface of several layers by vapor deposition or the like (FIG. 2).
13-05-2019
1
Furthermore, after providing a resist layer corresponding to the voice coil portion on the surface
of the aluminum foil plate l, the depth from the surface of the aluminum plate 1 to the metal film
J can be changed by etching / EndPage: 1 The aluminum foil plate l is completely removed at one
portion of the resist layer, and the metal film 3 of beryllium is used as the diaphragm substrate
10, and the remaining portion of the aluminum foil plate l collects the voice coil portion II. Obtain
a diaphragm (Fig. 2). In the above description, the beryllium metal is used as the diaphragm
closing plate 10, but another metal material such as aluminum 3rc aluminum is deposited on the
bottom of FIG. When a resist layer corresponding to the voice coil portion is provided on the
surface and etching is performed on the metal film J of the grain, as shown in FIG. 3, a
diaphragm having the aluminum diaphragm 1 as a diaphragm substrate is obtained.
Furthermore, as shown in FIG. 4, a diaphragm substrate, i. A resist layer is provided on the
portion to be the voice coil portion on the aluminum layer plate l to be formed, and the
remaining portion is subjected to an alumite treatment to form an insulating layer, and then the
resist layer is removed to obtain a diaphragm. it can. As is apparent from the above description,
since the voice coil portion is formed on the metal diaphragm substrate such as an aluminum
open plate through the insulating layer, the glass diaphragm of the full drive type speaker
diaphragm of the present invention is formed. Compared to a diaphragm made of aluminum,
high-frequency sound can be expressed in 7 rats, and the diaphragm is excellent in heat
resistance and input resistance, and a thick one can be obtained.
4. Brief description of the drawings FIG. 1 is a plan view of a diaphragm according to the present
invention, FIG. 2 is an explanatory sectional view showing a process of manufacturing the
diaphragm of the present invention, FIG. 3 and FIG. It is a break lff1 of the diaphragm according
to the embodiment. Patented applicants Pioneer Corporation Attorney Attorney Kobayashi
Shinsuke Attorney Attorney Attorney Attorney Murai End Page: 2
13-05-2019
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