close

Вход

Забыли?

вход по аккаунту

?

DESCRIPTION JPH0597200

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 JPH0597200
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a
speaker damper for use in a speaker.
[0002]
2. Description of the Related Art A conventional flat damper has a central hole into which a voice
coil is fitted at the center of a thin elastic resin plate or metal plate or the like, and an appropriate
amount of space is provided between the central hole and the outer periphery. A slit is provided
to provide compliance. The shape of the conventional flat damper will be described based on
FIGS. 5 (a) and 5 (b). 1 is a flat damper, 1a is a slit, and 1b is a center hole.
[0003]
However, the conventional flat damper has the following problems. Since there is no dustproof
function, dust and iron powder in the air enter the field section through the slit and an abnormal
noise is generated. Since it is composed of a thin synthetic resin plate, metal plate, etc., the
internal loss is very small and sharp resonance tends to occur at a specific frequency (peak on
the sound pressure frequency characteristic that resonates between approximately 300 to 1500
Hz) Dip)). Since it has a flat plate shape, there is no accumulation of adhesive at the time of
adhesion with the voice coil, and the adhesive applied to the central portion for adhesion with the
12-04-2019
1
voice coil spreads around and flows into the field portion from the slit. In addition, the adhesive
strength at the central portion also decreases. Therefore, it could only be used for special
purposes.
[0004]
The present invention has been made in view of such a point, and it has a dustproof function
while maintaining the performance of a flat damper acoustically, and increases the internal loss
to suppress resonance, thereby suppressing the voice coil. It is an object of the present invention
to provide a speaker damper having a structure in which the adhesive does not flow out to the
other during bonding with.
[0005]
SUMMARY OF THE INVENTION In order to solve the above problems, the speaker damper
according to the present invention stably holds the voice coil of the speaker and guarantees the
followability of the reciprocating motion of the diaphragm. In this method, the flat damper and
the corrugation damper are joined at their respective inner circumferences, and a rise is provided
on the inner circumference of the corrugation damper to bond the flat damper and the voice coil.
It is characterized in that a reservoir is formed.
[0006]
[Operation] A flat damper and a corrugation damper are joined at their inner peripheries to form
a composite damper.
In addition, risings are provided on the inner periphery of the corrugation damper to form a pool
of adhesive when bonding the flat damper and the voice coil.
[0007]
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present
invention will be described below with reference to the drawings.
FIG. 1 is a half sectional view of a speaker damper according to an embodiment of the present
12-04-2019
2
invention. In the figure, 1 is a flat damper, 2 is a corrugation damper, and 2a is a rising edge
provided on the inner periphery of the corrugation damper. As shown in the figure, the inner
peripheral portion of the corrugated damper 2 and the inner peripheral portion of the flat
damper 1 and the outer peripheral portion of the corrugated damper 2 and the outer peripheral
portion of the flat damper 1 are respectively joined to form an integral composite damper. .
[0008]
The speaker damper, which is a composite damper of the above construction, has a dustproof
function because the corrugation damper 2 is made of cloth, and covers the slit 1a of the flat
damper 1 to prevent dust from entering the speaker field portion. ing. Further, the cloth-made
corrugation damper 2 has a large internal loss, and can suppress resonance of the flat damper 1
alone, and acoustically can realize smooth frequency characteristics.
[0009]
FIG. 2 is a half sectional view of a joint showing a state in which the speaker damper of the
present invention is bonded to a voice coil. In the figure, 4 is a voice coil, 3 is an adhesive for
bonding the speaker damper and the voice coil 4. As shown in the figure, since there is a space
for the adhesive 3 to be accumulated between the rising 2a and the voice coil 4, the adhesive 3 is
prevented from spreading to the periphery, thus preventing the flow into the slit 1a. In order to
secure a sufficient adhesion area, it is possible to prevent a decrease in adhesion strength.
[0010]
FIG. 3 shows an example of use of the speaker damper according to the present invention, and is
a cross-sectional view of the speaker provided with the speaker damper according to the present
invention. The flat damper 1 and the corrugation damper 2 shown in the figure use the speaker
damper of the present invention described in FIG. Next, the new code will be briefly described.
The magnetic circuit comprises a plate 10, a magnet 11 and a yoke 12. The vibration system
comprises a cap 5, a diaphragm 6 and a diaphragm edge 7. Reference numeral 8 denotes a
gasket for fixing the diaphragm edge 7 to the frame 9.
[0011]
12-04-2019
3
FIG. 4 shows an example of using another speaker damper of the present invention. The flat
damper 1 and the corrugation damper 2 shown in the figure are joined to each other at the inner
circumferential portion, and the outer circumferential portion is separately joined to the step
portion of the frame 9 unlike in FIG.
[0012]
As described above, in the damper for a speaker according to the present invention, since the flat
type damper and the corrugation damper are joined at their respective inner peripheral portions,
a standup is provided on the inner peripheral portion of the corrugation damper, Since adhesive
reservoirs are formed when bonding the flat damper and the voice coil, a soundproof function is
provided while maintaining the performance of the flat damper acoustically, and the internal loss
is increased to suppress the resonance, thereby suppressing the voice coil. The adhesive does not
flow out to the other during bonding with the speaker, and is very useful for improving the
performance of the speaker.
[0013]
Brief description of the drawings
[0014]
1 is a half sectional view of a speaker damper in an embodiment of the present invention.
[0015]
2 is a half sectional view of the joint portion showing a state in which the speaker damper of the
present invention is bonded to a voice coil.
[0016]
3 is a cross-sectional view of a speaker provided with the speaker damper of the present
invention.
[0017]
4 is a cross-sectional view of a speaker provided with another speaker damper of the present
invention.
12-04-2019
4
[0018]
FIG. 5 (a) is a top view of a conventional flat damper, and FIG. 5 (b) is a cross-sectional view
thereof.
[0019]
Explanation of sign
[0020]
Reference Signs List 1 flat damper 1a slit 1b center hole 2 corrugation damper 2a rising 3
adhesive 4 voice coil 5 cap 6 diaphragm 7 diaphragm edge 8 gasket 9 frame 10 plate 11 magnet
12 yoke
12-04-2019
5
Документ
Категория
Без категории
Просмотров
0
Размер файла
12 Кб
Теги
jph0597200, description
1/--страниц
Пожаловаться на содержимое документа