close

Вход

Забыли?

вход по аккаунту

?

JPS5439625

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 JPS5439625
Name of Invention
Cone-shaped honeycomb diaphragm
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cone-shaped
honeycomb diaphragm for a speaker. In general, the diaphragm of the speaker is lightweight and
has a large specific modulus E // (E: Young's modulus, ρ: density). And it is required to have
excessive internal loss tana. Particularly in the case of a cone-shaped diaphragm, a large specific
elastic modulus is required because the inner peripheral portion (voice coil 11) must propagate
to the & # t- faithful of the coil bobbin, while the outer peripheral portion (edge side) 2.) It is
ideal that the internal loss ta port δ is moderately large because it must be absorbed on the
reflection vibration from the Fi edge. However, E / ρ and tan δ are generally in inverse
proportion, and as in the conventional honeycomb diaphragm (FIG. 1), when the material and the
composition of the skin material are the same in the inner peripheral portion and the outer
peripheral portion, It is difficult to increase the inner diameter IVp and increase the outer
diameter Lanat without increasing the overall weight, and therefore it is impossible to sufficiently
groove the required characteristics as the speaker diaphragm. . The present invention relates to a
skin material of a honeycomb diaphragm to improve the above-mentioned defects of the
conventional product, and a material having a large E / ρ is applied to the inner periphery, while
a material having a relatively large tan δ is applied to the outer periphery S It is said that. For
example, a 0 Fi (P (carbon fiber reinforced sheet EndPage: 1 plastic) sheet etc. is applied to the
inner circumference where a large amount of V and a large Vρ are required, and a synthetic
resin single sheet or a light weight is applied to the outer circumference FRP reinforced with
relatively large natural or synthetic fibers of jan δ, or paper can be applied. In order to
manufacture the cone-shaped honeycomb diaphragm according to the present invention, as
11-05-2019
1
shown in FIG. Use fcFRP sheets made of different amounts of reinforcing fibers and materials as
shown in FIG. 8 or make them as shown in FIG. This is possible by constructing a large part of /
ρ in the outward part by a large part of Lana. FIG. 5 shows a sheet whole skin material which is
uniformly distributed and hardened so that the glass fiber / epoxy resin becomes 0.80 in volume
ratio, and the conventional cone-shaped nicham-like diaphragm and two examples according to
the present invention Pressure frequency characteristics of a cone-shaped honeycomb
diaphragm used as a Sea 1 r skin material manufactured so that glass fibers / epoxy resin of
inner and outer peripheral parts become 0.8 G and 0.05 (volume ratio), respectively The As
apparent from FIG. 5, compared to the characteristic (8) of the conventional product, the
diaphragm according to the present invention has smaller peaks and dips in the high frequency
region as shown in FIG. As described above, according to the present invention, the material or
composition of the skin material is different between the inner and outer peripheral portions, and
the outer peripheral portion is made of a material or composition having a large E / ρ. S is made
of a skin material having a relatively large material or composition of tag δ to provide a coneshaped honeycomb diaphragm t- excellent in TIP% property.
4. Brief description of the drawings Fig. 1 is a cross-sectional view of a conventional cone-shaped
honeycomb-shaped carrier plate, Fig. 2 is a cut-out of a cone-shaped honeycomb diaphragm
according to the embodiment of the present invention, Fig. 8 is a block diagram. FIG. 4 is an
enlarged sectional view of a skin material according to another embodiment of the present
invention, FIG. 4 is a sectional view of a cone-shaped honeycomb diaphragm according to
another embodiment of the present invention, and FIG. The code | symbol in a figure, (2) is a core
of a honeycomb-shaped diaphragm. CB) (4) (7) is a skin material; (6) is a reinforcing fiber; (6) is a
resin layer. Agent Shin Nobu-1st Section Fig. 2 EndPage: 2 Fig. 3 Mm Fig. 4 Fig. 4--利 EndPage: 3
11-05-2019
2
Документ
Категория
Без категории
Просмотров
0
Размер файла
9 Кб
Теги
jps5439625
1/--страниц
Пожаловаться на содержимое документа