close

Вход

Забыли?

вход по аккаунту

?

JPH0550896

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 JPH0550896
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an
elliptical speaker in which a rigid core is enclosed and fixed to the inside of a gasket in order to
reinforce the mechanical strength of the frame in a narrow elliptical speaker. is there.
[0002]
2. Description of the Related Art Conventionally, an elliptical speaker of this type has a gasket (3)
of a frame (5 ') affixed to withstand external force, particularly in the torsional direction, as
shown in FIGS. A rim (5a) is formed and reinforced on the attached outer peripheral part.
[0003]
[0003] Therefore, recently, in this type of elliptical speaker, it is strongly demanded to narrow
the width of the frame (5 ') due to the limitation of the place where it is used. .
In line with the demand, the mechanical strength of the frame (5 ') is lost, because the frame (5a)
has recently been devoid of the border (5a) of the side edge of the frame (5'), so that There is a
problem that the plate (1) is distorted, the posture of the voice coil (6 ') in the narrow magnetic
air gap (7a) is distorted, and the pole wall (7b) is touched to generate a failure of the charging
failure. there were.
12-05-2019
1
[0004]
The adhesion of the gasket (3) for bonding the edge portion (2) is only on the upper surface of
the frame (5), and the edge portion (2) is stretched with large amplitude and the frame (5) is
directed inward. When pulled, it deforms in the minor axis direction and the diaphragm (1) is
deformed to generate distorted sound. Furthermore, if there is insufficient adhesion between the
edge (2) and the gasket (3), the edge material will expand and contract, and the mutual deviation
of the adhesive surface will be expanded, generating a chattering noise. Furthermore, from the
viewpoint of adhesive application technology, there is a problem that the solvent type adhesive is
unsuitable so that the adhesive does not come off from the bonding position. Then, in order to
solve the problem which such a conventional elliptical speaker had, this invention vibrates in
order to reinforce the frame (5) which deleted the border part (5a) of the side part. Among the
gaskets (3) and (3 '), which are interposed between the edge (2) of the plate (1) and the outer
peripheral edge (5b) of the frame (5), the edge ( By reinforcing the mechanical strength of the
frame (5) by strengthening the core (4) of the rigid body inside the gasket (3) bonded to the
lower surface of 2), the adhesive strength is enhanced. To provide an elliptical speaker capable of
reducing the cause of the occurrence of a speaker failure.
[0005]
SUMMARY OF THE INVENTION The structure of the present invention for achieving the object
will be described with reference to FIGS. 1 and 2 corresponding to the embodiments. Stick the
lower part of the outer peripheral edge part (2) of 1), inside the gasket facing the edge part (2) of
the gasket (3), along the outer periphery of the central vibrating part (1a) It is an elliptical
speaker which enclosed 4).
[0006]
In the second device, the upper and lower surfaces of the outer peripheral edge portion (2) of the
diaphragm (1), the adhesive surfaces of the gaskets (3) and (3 ') attached to the upper and lower
surfaces, and the gasket (3) Apply a thermosetting adhesive to the adhesive surface of the frame
(5) with the outer peripheral edge (5b), and contact the edge (2) of the diaphragm (1) of the
gasket (3) attached to the lower surface An elliptical speaker in which a core material (4 ') of a
heating element is enclosed along the outer periphery of the central vibration portion (1a) of the
diaphragm (1).
[0007]
12-05-2019
2
[Operation] The elliptical speaker according to the first invention has such a structure, so that the
reinforcing core material (4) acts as a resistance to external force in the torsional direction of the
frame (5). , Deformation of the frame (5) can be prevented.
As a result, there is no deformation of the diaphragm (1), and the voice coil (6) vibrates normally
with respect to a large electric input, so that not only voice reproduction can be performed with
good sound quality, but also reduction of the defect rate is achieved. Can.
[0008]
In the second invention, a thermosetting adhesive is applied between the diaphragm edge (2), the
gasket (3), (3 ') and the outer peripheral edge (5b) of the frame (5). Since the core of the heating
element (4 ') is heated to be sufficiently cured, the bonding can be completed sufficiently firmly.
[0009]
Embodiments of the present invention will be described with reference to the drawings.
1 and 2 show an embodiment of the present invention, wherein FIG. 1 is a plan view and FIG. 2 is
a cross-sectional view in a short diameter direction semi-peripheral direction.
(2)Is the outer peripheral edge portion of the diaphragm (1), and the gaskets (3) and (3 ′) are
attached to the lower surface and the upper surface of the edge portion (2) to adhere to the outer
peripheral portion (5b) of the frame (5) Do. It is an elliptical speaker in which a core material (4)
made of a rigid material is enclosed along the outer periphery of the central vibration part (1a) in
the inside facing the edge part (2) of the lower gasket (3). Although the gasket (3) is made of
paper or plastic, etc., the core material (4) is manufactured separately from a rigid body such as
metal or plastic, and when molding the plastic gasket (3), It is convenient that it can be enclosed
and integrally molded.
[0010]
In the second invention, the upper and lower surfaces of the outer peripheral edge portion (2) of
the diaphragm (1), the adhesive surfaces of the gaskets (3) and (3 ') attached to the upper and
lower surfaces, and the gasket (3) A thermosetting adhesive is applied to the adhesive surface of
12-05-2019
3
the frame (5) with the outer peripheral edge (5b), and the edge (2) of the diaphragm (1) of the
gasket (3) to be attached to the lower surface An elliptical speaker in which a core material (4 ')
of a heating element such as a nichrome wire is enclosed along the outer periphery of the central
vibration portion (1a) of the diaphragm (1) inside the contact surface. Heat generated by
energizing the body (4 ') is transmitted to the outer peripheral edge (5b) of the frame (5) in close
contact, the diaphragm edge (2), and the gaskets (3) and (3'), respectively. The agent can be
heated to solidify firmly.
[0011]
Although the embodiments considered to be representative of the present invention have been
described above, the present invention is not necessarily limited to only the structure of these
embodiments, and includes the above-described components according to the present invention,
and In order to achieve the purpose of the present invention, the present invention can be
appropriately modified and implemented within the scope having the following effects.
[0012]
As is apparent from the above description, in the first aspect of the present invention, the edge
portion of the gasket (3) is attached to the lower surface of the outer peripheral edge portion (2)
of the diaphragm (1). Since the rod-like core material (4) made of a rigid material is enclosed
along the outer periphery of the central vibration part (1a) inside the member facing 2), against
the external force in the torsional direction of the frame (5), The reinforcing core material (4)
acts as a resistance, and deformation of the frame (5) can be prevented.
As a result, there is no deformation of the diaphragm (1), and the voice coil (6) vibrates normally
with respect to a large electric input, so that not only voice reproduction can be performed with
good sound quality, but also reduction of the defect rate is achieved. It is possible to expect a
remarkable effect in practical use that
In the second invention, a thermosetting adhesive is applied to the adhesive surface between the
diaphragm edge (2), the gasket (3), (3 ') and the outer peripheral edge (5b) of the frame (5), Since
the core material (4 ') of the heating element heats and fully cures, the bonding can be completed
sufficiently firmly. As a result, even if the amplitude is large, the frame (1) is not deformed, the
diaphragm (1) is not deformed, and the voice coil (6) vibrates normally in the magnetic gap (7a),
so that the sound quality is good. It is possible to expect a remarkable effect in practical use that
not only the reproduction can be performed but also the defect rate can be reduced.
12-05-2019
4
12-05-2019
5
Документ
Категория
Без категории
Просмотров
0
Размер файла
12 Кб
Теги
jph0550896
1/--страниц
Пожаловаться на содержимое документа