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JPS5524848

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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
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DESCRIPTION JPS5524848
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of a partial cross section of an
underwater speaker according to an embodiment, and FIG. 2 is a plan view of the embodiment. 1
и и и и и и и и Housing 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 Small hole, 8 и и и и и и
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и и и и и и и и и и и и и и и и и и и и и и и и ........? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ......
DETAILED DESCRIPTION OF THE INVENTION In the case where an underwater speaker emits
sound in water, the vibrator of the speaker stirs the water so that the surface KgK bubbles of the
vibrator adhere and the transmission efficiency of the speaker is lowered. The present invention
relates to an underwater speaker capable of preventing When the underwater speaker was aged
in water, cavitation caused air bubbles on the surface of the vibrating body to adhere to the
surface of the diaphragm, and this air bubble became a damper layer to lower the transmission
efficiency of the underwater speaker . ?????????????? In order to remove the air
bubbles from the surface of the diaphragm, in the conventional underwater speaker, the surface
of the diaphragm and the strong water flow are generated to remove the air bubbles. However,
this method requires another device for generating water flow, and the entire underwater
speaker becomes large. Therefore, the present invention uses an imaging moving body as a
negative electrode, and an underwater speaker that removes an air bubble generated on the
surface of an imaging moving plate by forming an electric equivalent circuit with the electrolytic
cell by the positive electrode disposed on the front of this imaging moving body. Intended to
provide. An embodiment of the present invention will be described based on the drawings. First,
based on FIG. 1, the structure of the underwater speaker according to the embodiment (in
particular, the bottom plate 2 is disposed at the lower end opening portion of the housing 1
made of a substantially cylindrical brass material via the O ring 3) In order to prevent the
suspension 14, which is a vibrator of the underwater speaker, from being unable to take pictures
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according to the electric signal on the lower surface of the bottom plate 2 in response to the
electric signal, 2) A substantially semi-spherical air bag 4 formed of a rubber material to
pressurize the pressure is provided, and a case 5 is provided so as to surround the air bag 4. A
small hole 6 for communication is bored, and the case 5 and the air bag 4 are fixed by a set
screw 7 to the housing 11C. Inside the housing 1, a magnet yoke 8 is disposed on the upper
surface of the bottom plate 2, a cylindrical magnet 9 is fixed at the center of the magnet yoke 8,
and around the magnet 9, Inside the housing l, MlkK is fixed, and a magnet play 10 is disposed
spaced from the magnet 9, and a voice coil groove 11 in which a voice coil 12 is disposed is
formed between the magnet 9 and the magnet play 10 Be done. A suspension 14 made of a
spring material is disposed at the upper end opening of the housing l through an O-ring 13, and
a flange 16 of the ring 15 is disposed on the upper surface of the suspension 14. Are fixed to the
housing 1 by
The ring 15 is for preventing the sound pickup motion generated by the diaphragm 21 from
being agitated in water to reduce the transmission efficiency (3). A diaphragm clamp 18 is
disposed at the center of the back surface of the suspension 14, and a voice coil 12 is fixed to the
diaphragm clamp 18. The tip of the voice coil 12 is inserted into the voice coil groove 11, and the
voice coil Twelve I7-wires are waterproofed by a cable extractor 19 disposed at the outer
peripheral portion of the housing 1 and connected to the output terminal of the amplifier by a
cable 20. -In the center of the surface of the suspension 14, a diaphragm 21 made of a
substantially semi-spherical aluminum material is disposed. This diaphragm 21 is a set screw 22
from the back side through the diaphragm clamp 18 and the suspension 14. In the center of the
diaphragm 211 suspension 14 and the diaphragm clamp 18, a conducting rod 24 made of a
brass material is disposed via an insulating material 23. A tip of the conducting rod 24 is made of
a stainless steel. And the negative electrode 25 is fixedly disposed by the nut 26 and is disposed
radially below the conducting rod 24 electrically connected to the positive electrode 25 (4). The
lead wire is connected to the heel portion and the diaphragm clamp 18 electrically connected to
the diaphragm 21, and the cable drawing tool 19 is used to form a cable. It is connected to the
DC power supply 20. Therefore, a positive DC positive electrode is applied to the positive
electrode 25 and a negative DC negative electrode is applied to the diaphragm 21 to form an
electric equivalent circuit with the electrolytic cell, thereby removing air bubbles generated on
the surface of the diaphragm 21. A small hole 27 is provided in the magnet plate 10 and the
magnet yoke 8 in order to connect the space under the suspension 14 with the air bag 4 inside
the housing l. Next, as another embodiment, when the underwater speaker is used in a deep place
of water depth, the air bladder 4 is contracted by water pressure, and the suspension 14 which is
a vibrating body can vibrate in response to the electrical signal. Therefore, a pressure cylinder
(not shown) is connected to the air bag 4 via a pressure control valve (not shown), and the
pressure in the air bag 4 is adjusted according to the water pressure by the pressure control
valve (not shown). (5) The air bag 4 is contracted to prevent the suspension 14 from being
unable to vibrate in response to the electrical signal. Since this device is configured as a utility
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model registration request based on the embodiment described above, in the conventional
underwater speaker Fi!
Since the moving body is a negative pole and the positive electrode is fixed to the front of the
vibrating body as a positive pole, the distance between the vibrating body and the positive
electrode fluctuates when the vibrating body is photographed according to the electric signal. As
a result, the bubbles generated on the surface of the 5IIII body could not be removed in a stable
state. However, according to the present invention, since the positive electrode is fixed to the
diaphragm which is the negative electrode, the distance between the positive electrode and the
negative electrode does not change and it is possible to remove the bubbles generated on the
diaphragm surface in a stable state. became.
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