close

Вход

Забыли?

вход по аккаунту

?

JPS567591

код для вставкиСкачать
Patent Translate
Powered by EPO and Google
Notice
This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
financial decisions, should not be based on machine-translation output.
DESCRIPTION JPS567591
Bright Side 1 Title of the Invention Flat diaphragm speaker unit + 11 In a speaker unit using a
polygonal flat diaphragm, the area of the diaphragm divided by the rectangular voice coil bobbin
fixed to the flat diaphragm is equal to that of the voice coil bobbin. A flat diaphragm speaker unit
characterized in that the outer side and the inner side are equal to each other.
2 Claims
The present invention relates to a flat diaphragm speaker unit, and more particularly, to a flat
diaphragm speaker unit whose mounting of voice coil bobbins is improved in position. The flat
diaphragm has a relatively flat sound pressure characteristic over the entire frequency range,
and features such as the ability to enjoy a stable sound reproduced from a sound image are
recognized, and a speaker system using this is provided. Came. It is mentioned that the
movement of the sound image is extremely small as a feature of the speaker system using a flat
diaphragm, but the position of the point of application (line) of the driving force applied to the
flat diaphragm is an ideal position. There is less division vibration, and the movement of sound
image is even less. Ideally, if a uniform driving force is applied to the entire surface of the planar
diaphragm, the h can not transmit the driving force to the diaphragm and the voice coil bobbin
can not be fixed over the entire surface of the diaphragm. n will be obtained. In terms of
configuration, the relationship between the diaphragm and the voice coil bobbin attached to it
can be considered as a structure in which the bobbin supports the diaphragm, and that balance is
illuminated even in a stationary state where the diaphragm is supported by the bobbin is
necessary. However, in the case of the vhfr-speaker unit for the coaxial flat diaphragm, since the
space inside the voice coil bobbin can not be made large, the voice coil bobbin of the diaphragm
of the bass portion is provided near the outer peripheral edge of the diaphragm. ing. Therefore,
the ms force of the diaphragm of the low-pitched part stays near the outer edge, and the value of
11-05-2019
1
EndPage: 1 is retained, and the vibration state is different between near the outer edge and near
the inner edge. Therefore, we will observe the state of vibration in the most well-known planar
diaphragm. In the case of the square diaphragm l shown in FIG. 1 and having a square window
hole at the center, one in which the circular voice coil bobbin 3 is fixed to this has a tendency to
cause division vibration at the corner. , ((Al, fbl, tel, the divided vibration increases in the order of
Therefore, it has come to be used what made the corner part of the diaphragm circular. In
addition, a force that is supported by a square voice coil bobbin at substantially the center along
the length direction of each side of the square diaphragm; (FIG. 2), the area of the voice coil
bobbin fixed position Since the outer side is larger than the inner side and heavier in weight, the
outer peripheral portion is apt to vibrate at a low frequency and the inner peripheral portion is
less likely to vibrate, so that the divided vibration can not be prevented. Therefore, according to
the present invention, the divided vibration is raised to a high frequency for both the inner and
outer circumferences of the diaphragm so that the divided vibration is not generated as the
whole diaphragm. Therefore, the diaphragm has uniform thickness and uniform density.
Assuming that there is a voice coil bobbin attachment, it is characterized in that the results of the
outer side and the inner side divided by position are equal.
The details of the present invention will be described below with reference to FIG. The symbol //
indicates a square diaphragm, and a square window hole / hole is bored in the center, and a
square voice coil bobbin 13 is attached to the diaphragm and divided by the attachment portion
The outer peripheral area S1 of the diaphragm // and the inner peripheral surface aSt are
determined to be equal. The arrangement of the diaphragm / l and the voice coil bobbin 13 is
such that the sides of the diaphragm l / and the sides of the voice coil bobbin / 3 are parallel, and
the plane diaphragm of a regular polygon is not limited to a square. It may be a regular polygon
voice coil bobbin, and in this case, the sides are arranged in parallel. The weight is proportional
to the area because the diaphragm 1 / is formed to have the same thickness and the same
density, so the weight of the outer peripheral area 81 and the inner peripheral area St is equal. 3- Therefore, there is no part that is easily vibrated and a part that is not easily vibrated in the
diaphragm, so that the frequency of the divided vibration can be raised to a high frequency as a
whole, and the region of piston movement can be expanded. As apparent from the above
description, in the flat diaphragm speaker unit according to the present invention, the voice coil
(/ l / bobbin is attached to the flat diaphragm so that the surface i of the outer periphery of the
voice coil bobbin and the inner periphery are equal Because the vibration plate is well-balanced,
there is no part that is easily vibrated locally, and it is possible to obtain one in which the divided
vibration is suppressed.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1M2 is a front view of a flat diaphragm speaker
unit to be improved, and FIG. 3 is a front view of the flat diaphragm speaker unit of the present
invention. // / · Diaphragm, / · · · · · · · · · · · · · · · voice coil bobbin. −4−EndPage: 2
11-05-2019
2
11-05-2019
3
Документ
Категория
Без категории
Просмотров
0
Размер файла
10 Кб
Теги
jps567591
1/--страниц
Пожаловаться на содержимое документа