close

Вход

Забыли?

вход по аккаунту

JPS56160082

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 JPS56160082
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan sectional view of a conventional horn
speaker, FIG. 2 is a side sectional view of the same, FIG. 3 is a front view thereof, and FIG. 4 is a
horn speaker in one embodiment of the present invention. 5 is a side sectional view of the same.
FIG. 6 is a front view of the same, and FIG. 7 is a sound pressure frequency characteristic
diagram of the horn speaker of the present invention and the conventional horn speaker.
DESCRIPTION OF SYMBOLS 1 ... Horn, 3 ... Closed surface, 4 ... Speaker, 6 ... Wall, 7 ... Hole, 訃 ・
・ diaphragm, a, b, c, d ... Horn part.
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a horn speaker,
and it is an object of the present invention to improve low band sound pressure levels and to
broaden the band. First, a conventional horn speaker of this type will be described with reference
to FIGS. 1 to 3. 1) In FIG. 1 to FIG. 3, 1 is a closed horn 11 and a horn 11 with a wall 2 formed in
the horn 1, and '/ 〆i and 2', A speaker 4 is mounted between the wall 2 and the closing surface
3 of the horn 1 so as to face the closing surface 3. 6 is a space in which the tweeter is stored. In
the above conventional horn speaker, the volume of the back of the speaker 4 is sealed, and only
the sound radiated to the front of the speaker 4 is reflected by the closing surface 3 and emitted
from the horn opening through the upper and lower portions of the wall 2 The acoustic energy
radiated to the back side of the speaker 4 is not an actual sound but a large loss of energy. The
present invention eliminates the above-mentioned conventional drawbacks, and an embodiment
of the present invention will be described below with reference to FIGS. 4 to 6. 4 to 6, 1 is a horn
whose one end is closed, 6 is a wall in which a hole 7 is formed, and a speaker 4 is a closing
surface between this wall 6 and the closing surface 3 of the horn 1 It is attached in 3 directions.
Reference numeral 8 is a diaphragm supported on the upper and lower two walls 6. When a
signal is applied to the speaker 4, sound is emitted in front of and behind the speaker 4. The
sound radiated to the front three sides of the speaker 4 is reflected by the closed surface 3 of the
horn 1 and emitted from the horn opening via the upper and lower horn portions abi. On the
02-05-2019
1
other hand, the sound radiated to the rear of the speaker 4 vibrates the diaphragm 8 supported
by the wall 6, and the sound produced by the vibration of the diaphragm 8 passes through the
left and right horn parts cd through holes. , Emitted from the horn opening. The cutoff frequency
of the horn portion cd coupled to the diaphragm 8 is lower than the cutoff frequency of the horn
portion ab coupled to the speaker 4. The present invention is configured as described above, and
as a result that the speaker 4 and the diaphragm 8 are picked up in the same phase in the low
frequency range, as shown in FIG. The area sound pressure level is improved, and a wide band
can be achieved. In FIG. 7, A indicates the characteristics of the conventional example, and B
indicates the characteristics of the horn speaker of the present invention. The present invention
is configured as described above, and has the advantage that the low-range sound pressure level
can be improved by utilizing the sound radiated to the rear of the speaker effectively, and a wide
band can be achieved.
02-05-2019
2
1/--страниц
Пожаловаться на содержимое документа