close

Вход

Забыли?

вход по аккаунту

?

JPS63224591

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 JPS63224591
[0001]
TECHNICAL FIELD The present invention relates to a speaker used for various audio devices. 2.
Prior Art A conventional loudspeaker of this type is as shown in FIG. That is, on the frame 2
bonded to the magnetic circuit 1, the flat diaphragm 3 and the cloth on the outer periphery
thereof. A material with good moldability such as maltobrene, urethane, etc. is bonded in the
form of a down roll, up roll or wave which is a shape that can secure sufficient amplitude margin
of the diaphragm, and a gasket 6 is attached to the outer periphery. Coupling 8 for bonding the
bonded diaphragm assembly, centering the voice coil 6 fitted into the magnetic gap of the
magnetic circuit 1 by the damper 7, and transmitting the driving force of the voice coil to the
node of the diaphragm In the conventional configuration, the weight of the diaphragm itself,
which is a feature of the flat diaphragm type speaker as compared with the cone type speaker,
and the cup are further increased. The weight of the speaker determined by the weight and
flexibility of the vibration system due to the weight increase as a whole of the vibration system
due to the addition of a part called a ring Minimum resonance frequency F. is one of a
characteristic element Has fallen, ?. Causes an increase in the amplitude of the diaphragm due
to the decrease in the amplitude of the diaphragm, and as an adverse effect when driving the
speaker due to the increase in the amplitude of the diaphragm, unnecessary vibration of the
diaphragm in the low frequency range, that is, Deterioration of the characteristics, acoustic load
in the enclosure when attached to a small volume enclosure, ie generation of abnormal noise due
to flapping of the edge due to back pressure, especially in the case of a down-roll shaped edge
formed of cloth When the speaker's vibration system falls out of place or falls out of place, that
is, when the current in the negative direction normally specified flows through the voice coil and
the vibration system falls in one direction of the enclosure, the near-suspension town system is
used. The air pressure in the enclosure is temporarily increased, and the back pressure in the
enclosure causes the speaker's down roll edge to fail. Kurojiya - Do you front direction, pushed in
11-05-2019
1
the opposite direction to the amplitude direction of KazuSatoshi diaphragm temporarily become
distorted shape similar to up roll form, is to generate the abnormal sound as fluttering sound.
Furthermore, at the time of large input, the amplitude of the vibration system is further
increased, so an abnormal sound is generated due to the overhang of the edge, an increase in
distortion factor generated because the voice coil ring is out of the magnetic gap, and further. Is
a flat diaphragm type speaker such as a reliability defect that it is very difficult to support heavy
heavy vibration system weight as a flat diaphragm for a long time, and it is characteristic as a
speaker, It is a structure that has a major problem with elements that are extremely important in
reliability.
The present invention seeks to provide a loudspeaker that can solve this problem. Means for
Solving the Problems In the speaker of the present invention, the edge shape for a flat diaphragm
is a flat plate, and a gasket is inserted in the peripheral edge portion of the edge. Operation With
this configuration, the vertical amplitude of the diaphragm of the speaker is obtained not by the
shape of the edge but by the extension of the material of the edge itself, which is a feature of the
flat diaphragm type speaker F. Can be controlled in various ways, such as deterioration of
transient characteristics, generation of abnormal noise due to fluttering and sticking of an edge,
and distortion due to excessive amplitude of voice coil. It is possible to prevent and improve
defects in reliability, such as increasing the number and supporting the vibration system
permanently. Embodiment 1 FIG. 1 shows an embodiment of the present invention, in which a
planar diaphragm 3 and a maltobrene molded on the upper and lower periphery of a planar
diaphragm 3 on a magnetic circuit 1 according to the prior art and a frame 2 bonded thereto.
The diaphragm assembly with the edge 9 attached is bonded in a configuration sandwiching the
diaphragm, and the gasket 6 is attached to the outer periphery of this edge, and the voice coil 6
fitted into the magnetic gap of the magnetic circuit is A centering mechanism 7 is driven by a
coupling 8 for transmitting the driving force of the voice coil to the nodes of the diaphragm.
Here, the amplitude of the diaphragm of this speaker is characterized by being obtained by the
material expansion and contraction of maltobrene having excellent elasticity, which is the
material forming the upper and lower two planar shaped edges. As described above, according to
the present invention, the edge of the flat diaphragm speaker is intended to give a great
improvement effect to the amplitude characteristics of the flat diaphragm speaker which is not at
the edge. Since the upper and lower amplitudes of the diaphragm are obtained not by the shape
but by the expansion and contraction of the material itself rather than the shape, F is a feature of
the flat diaphragm type speaker as compared with the conventional edge. Of various problems
caused by the decrease of the amplitude and the increase of the amplitude, that is, the prevention
of the deterioration of the transient characteristics due to the increase of the amplitude
displacement of the vibration system in the low range, by the flap of the edge when attached to
the enclosure It is possible to prevent abnormal noise, to improve the distortion factor that is
generated by coming out of the magnetic gap due to excessive amplitude of the voice coil, etc.,
and to control the amplitude at the time of large input. Material change F. It is easy to change,
11-05-2019
2
and there is no inherent characteristic deterioration that occurs from the edge shape such as
down roll, up roll, wave shape, etc., and it can improve the permanent support characteristic of
the vibration system in terms of reliability, etc. It is possible to provide a speaker of very high
level in terms of its characteristics and reliability, and its industrial value is extremely great.
[0002]
Brief description of the drawings
[0003]
FIG. 1 is a structural sectional view of a flat diaphragm type speaker according to an embodiment
of the present invention, and FIG. 2 is a structural sectional view of a conventional flat diaphragm
type speaker.
1 иииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииииии ?
6 ...... voice coil 7 ......... tamper -18 ...... coupling, 9 ...... plane edge. Name of agent Attorney Nakao
Toshio Other 1 person Figure 1 Figure 2 ?
11-05-2019
3
Документ
Категория
Без категории
Просмотров
0
Размер файла
11 Кб
Теги
jps63224591
1/--страниц
Пожаловаться на содержимое документа