close

Вход

Забыли?

вход по аккаунту

?

JPS5491120

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 JPS5491120
BRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1 and 2 are a plan view and a longitudinal
sectional view, respectively, of a conventional horn speaker driver, and FIG. 3 is a perspective
view of a horn connected to the driver shown in FIGS. 1 and 2. FIG. 4 is a plan view of the driver
portion of the horn speaker according to an embodiment of the present invention, and FIGS. 5
and 6 are sectional views taken along the lines A-A and B-B of FIG. 4, respectively. The figure is a
cross-sectional view of a horn speaker using a sectoral horn. 1 и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и и
и и и и и и и и и и и и и и и и и и и и и и и и diaphragm и 7 и и и и и voice coil, 8 и и и ..... ииslit.
DETAILED DESCRIPTION OF THE INVENTION This invention relates to horn speakers. A plan
view and a longitudinal sectional view of a driver of a conventional horn speaker are shown in IIII
and FIG. 2, that is, the driver of this horn speaker is a circle with a collar, a yoke of pillar shape, a
permanent magnet of donut shape. 2. Donut blur pole 3. Dome diaphragm 4. The inner
peripheral surface has (1) ?-, 1> 0 taber, horny slot where the lower part of the outer peripheral
surface is bulged,-45, equalizer 6 with rounded top of cone and bottom surface facing diaphragm
4 and voice coil 7 and the support 8 of the moving plate 4. The sound wave generated by the
vibration of the diaphragm 4 of the driver of the horn speaker passes through the slit 9 located
at the narrowest portion of the wedge ring-shaped space 9 having a wedge-shaped cross section
formed by the horn throat 5 and the equalizer 6. It is emitted through the wedge ring-like space
9 to the inside of the horn 1 G (FIG. 3) connected to the tip of the horn throat 5. If it is necessary
to obtain a wide directional horn speaker using this horn speaker driver, it is necessary to
increase the aperture ratio (a: b) of the horn lO, but the throat portion 10a of the horn lO In
order to be connected, it has to correspond to the shape of the opening of the horn throat 5. As a
result, the III plane of the sound wave propagating in the horn 10 is disturbed, the output sound
pressure frequency characteristic of the horns-bee force is deteriorated, and the flatness is
impaired. (2) Therefore, an object of the present invention is to provide a horn speaker having
wide directivity without losing the flatness of the output sound pressure frequency and the
02-05-2019
1
number characteristic. A plan view of an embodiment of the present invention is shown in FIG. 4,
and its AA cross section and BB cross section are shown in FIGS. 5 and 6, respectively. That is,
the driver of the horn speaker includes a horn throat 11, an equalizer 12 disposed in the horn
throat 11, the horn throat 11 and a plurality of pyramidal spaces 13 formed by the a and the
collizer 12. .14 and a plurality of slits 15.degree. Located at the narrowest portion of each
pyramidal space 13.degree. 14, and the plurality of slits 15.16. Viewed from the central axis
direction of the diaphragm 4. (FIG. 4) are parallel to each other and viewed from a direction
perpendicular to the central axis of the diaphragm 4 (FIG. 5) and are arranged parallel to the
central axis, and sound waves generated from the diaphragm 4 are Sribs) 15.16 and pyramidal
spaces 13.14.
In this case, the side wall of the horn XCI-) 11 and am (3) of the equalizer 12 are in close contact
with the inner wall II of the slot portion of the horn attached to this driver. In this embodiment
(FIG. 7 shows a horn speaker in which the driver of the horn speaker is attached to the driver of
the horn speaker. In this horn speaker, the wave front 18 of the sound wave emitted from the
driver is not disturbed at all between the throat portion and the opening portion of the horn. As a
result of such construction, the wave front of the sound wave radiated from the driver is not
disturbed to the opening of the horn, so that wide directivity can be obtained without impairing
the flatness of the output sound pressure frequency characteristic. . As mentioned above, the
horn speaker of this invention. A plurality of horn throats, an equalizer disposed in the horn
throat, a plurality of pyramids 9 formed by the horn throat and the equalizer, and a plurality of
pits located in the narrowest part of each pyramidal space And the slits are parallel (4) when
viewed from the central axis direction of the diaphragm, and are parallel to the central axis when
viewed from a direction perpendicular to the central axis of the diaphragm Since the output
sound pressure frequency characteristics are not arranged, there is an effect that wide directivity
can be obtained without impairing the flatness of the output sound pressure frequency
characteristics.
02-05-2019
2
Документ
Категория
Без категории
Просмотров
0
Размер файла
9 Кб
Теги
jps5491120
1/--страниц
Пожаловаться на содержимое документа