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JPS52166504

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DESCRIPTION JPS52166504
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 (a), (b) and (c) are explanatory views of the
principle of a transformer user according to the present invention, and FIG. 2 is a sectional view
showing one embodiment. - 11 ...... conductor layer, 12.22 ----- diaphragm (movable electrode),
13,14,23,24 ...... Enkutoretto fixed pole, 15.16,251.252 , 261 ° 262 · · · · · · · · ·.
DETAILED DESCRIPTION OF THE INVENTION This invention relates to a transducer particularly
suitable for loudspeakers and headphones. In the case of (1) 4K, electric sound such as speakers
and headphones, and 62-person gJJi sound conversion system, it is considered preferable that
the entire diaphragm can be driven only with high efficiency. However, speakers and headphones
according to various methods conventionally used have not yet realized a book that can satisfy
these in terms of efficiency and overall driving of the diaphragm. In the seventh aspect, this
invention is a turtle made in view of the above points. Therefore, an electro-acoustic conversion
system such as a speaker or a headphone which can make the diaphragm as high efficient as
possible and can fully drive the diaphragm is simple and reliable. The aim is to provide a very
good transducer which is realized in First of all, the principle of the transducer according to the
present invention will be described with reference to FIG. 1 (as shown in al, a uniform electric
field acting between a pair of electrode plates (G) (-)). When an electron having an electric
quantity of e at a velocity is determined in the electron direction, the force acting on the electron
is (@ .phi.E) in one direction. If a magnetic field of strength H is formed in the -X direction by a
pair of madders 2- "2" "-1-1 -one net plate N, 8 in this state as shown in FIG. Is opposite to the
direction of movement of the electron, and the force acting on the electron according to [the law
of the left of Fleming] is 120,000 times to become (e-ma · H). Therefore, for example, as shown in
FIG. 6C, the diaphragm (movable portion) 12 having the conductor layer 11 is mounted between
the fixed electrodes 1: I and 14 formed of electrities of different polarity and facing each other.
And a direction perpendicular to the direction of the electric field between the fixed poles 13 and
14 made of electref! The magnet 15.16 as a magnetic field device magnetized in mutually
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different polarity is provided to make the magnetic field act on each other, and the power is
made to +511 in the y direction on the conductor layer 11 of the vibration & (moving part) 12
The II (movable part) 12 vibrates in response to a force in the 愈 direction to generate a sound
wave. An embodiment of a transducer based on the above principle will now be described with
reference to FIG. In other words, two sets of magnetz as magnetic field devices magnetized with
negative polarity at both ends on both sides of the vibrating wedge (movable part) 22 having a
conductor layer are interposed as spacers. A fixed pole 23.24 is formed by a pair of electrets
charged to different polarities. Although the operation of the transformer thus configured is
similar based on the principle described above, in this embodiment, the diaphragm with two pairs
of magnets 251, 252, 261 and 262 as magnetic field devices is used. (Movable bar) 22 and a pair
of electrets 23.24 to form a predetermined gearing by sharing a sensor and a sensor which can
reduce the number of parts and realize a simpler structure and a smaller point of @. There is a
sign.
As is apparent from the principle of the transducer according to the present invention as
described above, the force obtained by the interaction between the conductor layer provided with
the diaphragm (movable rod) K and the electric field between the fixed rods, for example, a pair
of electrets. In addition to the above, a predetermined magnetic field 11 by a magnet as a
magnetic field device is applied to them (therefore a force to be obtained is applied, so a
diaphragm (movable rod) picked up by these forces) # I can be vibrated as efficiently as possible,
which in turn can make the conversion efficiency as high as possible. At this time, since the
conductor layer of the diaphragm (movable rod) itself generates vibration due to the interaction
with the electric field or the magnetic field, the entire diaphragm (movable rod) is vibrated and
thus possible. It can be driven on the entire surface close to full piston movement. Therefore, as
described in detail above, according to the present invention, an electro-acoustic conversion
system such as a speaker or headphone capable of driving the entire surface of the vibrator with
high efficiency as much as possible is realized simply and reliably. It becomes possible to provide
a transducer. The present invention is not limited to the above-described embodiment, and it
goes without saying that various modifications can be made without departing from the scope of
the present invention.
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