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JPS5269610

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DESCRIPTION JPS5269610
(4 ooor + n · Showa 511 '-127-18 +, + □, Lee & ,. Name Double motion conversion system%
formula% 2, inventor speaker system-3, patent applicant 4, list of attached documents [Phase]
Japan Patent Office 0 JP-A-52-696100 Published Japanese Patent 52. (1977) 6.9 ■ 願, to-/ e 乙
屹 (inside agency number 2), 21; :,! Description 1, title of the invention
Dual motion conversion push-pull condenser speaker system
3. Detailed Description of the Invention The present invention relates to a push-pull condenser
type loudspeaker 5-. That is, the conventional condenser-type speaker can not be relied upon
even for its high fidelity, and its extremely low efficiency has the greatest drawback. ■ One
major drawback is that the high-pitched sound has zero directivity because it becomes the next
largest. またさらに。 ■ The influence of temperature and humidity was large, and it was a
disadvantage that the characteristic was changed by it. (There is also the effect of trash. 5) In
addition, the efficiency of the bass reproduction was inefficient, and it was necessary to reinforce
the bass by using a dynamic flat woofer as an aid. Therefore, the present invention can go up to
all of these disadvantages (1) to (2) (but even as long as possible I). ものである。 Well, what is
the hint of this invention. US ESS company amt-1 (commonly called bail driver). Described below
with this name. )である。 The ESS company amt-1 is an electrodynamic speaker that is
invented by Dr. 0skerHe1l, a physicist of the United States. First, let's start with this explanation.
Cono-Speaker, US 0 fficial gazette of United 5 tates patent offce, 2 ° EndPage: 1 patents, August,
27. 1974. のELECTRICAL。 P、1413. It is Nate Tei RU, not, No. 3.832.499 °
ELECTRO 2 ACOUS-TIC TRANSDUCER, becoming 0 skar He 1 1, 1 775 PanottDr, San Mateo.
U−S、C1,179−115,5Pv、11C1aims、テ、l)ル。 Now, as shown in
Figure 1 (Bile Driver), in the strong magnetic field of a large ferrite magnet 2, an extremely thin
diaphragm 1 stretched like an accordion curtain-like "hidder" 0 It is designed to generate sound
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waves while compressing air. -In addition, the semicircular arrow in this (Figure 1). Indicates the
direction of magnetic lines of force. Furthermore, 3 indicates a pole piece and 4 indicates a
stabilizer 5 riser. By the way, as this operation principle is (L in Fig. 2), every other voice coil 5 is
connected to the vibrating membrane 1 made of ultra-thin polyethylene at the upper or lower
side to the accordion curtain-like "hidder" The direction of the current is connected so as to flow
up or down sequentially for each piece of this "hidder".
Therefore-according to the "Fleming left-hand rule", depending on the direction of the current,
the "hidder" translates one piece to the right or to the left one by one, resulting in a gap between
the "hidder". The air will be pushed out. If the direction of the current is reversed, air will enter
into the "hidder" on the contrary, and it is said that sound waves are generated by this repetition.
(M in FIG. 2) illustrates this upper half cycle, and (N in FIG. 1) illustrates this lower half cycle. In
addition, the arrow of Q in (M of FIG. 2) and (N of FIG. 2) is a motion direction of air. The hour
arrows indicate the direction of movement of the membrane. Therefore, the vibration mode is not
the movement of the diaphragm back and forth to generate the sound wave like the conventional
speaker, but the expansion and contraction of the fold of the accordion curtain-like
diaphragm 1, The air is compressed to generate sound waves. In a simple manner, high efficiency
can be achieved compared to conventional dynamic beakers, and extremely good damping can be
achieved. But with this scheme. It requires a very large magnet, is expensive, and is not practical.
Therefore, for the bass driver of the bayle driver, only the movement form of "compressing and
pushing out the air", which is one of the operating principles, is spliced, and the driving method
is the same as that of the conventional dynamic speaker. . That is, approximately 10 diaphragms
(therefore, hard ones that are hard to be deformed even when a force is applied) corresponding
to the hidden part of the diaphragm 1 are arranged side by side, and the accordion curtain 5.
To make the shape of hidden 5 attach a soft film before and after every other diaphragm to
make it acoustically closed. Furthermore, every other rod is connected to this, and the end of the
rod is directly connected to the voice coil. Therefore, two driving rods, two voice coils and two
magnets are required. However, the two drive systems face each other from the front, or
conversely, move the hard diaphragm back to back. Therefore, high for bass. The drive system of
the LE driver basically follows the voice coil in the same way as a conventional dynamic speaker
(2) and although this speaker drives the entire surface for a while, it is not perfect and it is in the
diaphragm 1 In movement of the voice coil 5 which was swallowed? As a result, the film moves
so that the uniform force is not applied to the entire surface of the film as in the capacitor type.
(The capacitor type applies equal force to the entire surface of the film by electrostatic
attraction.) (3) Furthermore, as shown in (2) of FIG. Since the directions are wired in opposite
directions, if the "hidder" and the "hidder" come close to each other or when EndPage: 2 contacts
at large amplitude, the lines of magnetic force cancel each other, and the force may become
weak. Have enough. (Because of the "right-hand screw law" of electromagnetism U, the lines of
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magnetic force just cancel out. ) (4) Next, the depth of the "hidden" of this vibrating membrane 1
is regenerated. It can not be made more than half the wavelength of the highest frequency range
to be tried. (This is because if the band is made more than a half wavelength of the
frequency, the nine phases interfere with each other and cancel each other. As mentioned above,
it is an electrodynamic type-although this bail dry bar 0 bar has a number of drawbacks as (1) to
(4). At the same time, it goes without saying that this bail driver can be applied to the capacitor
type as it is. However, this speaker's movement style was applied as it was (as it was applied to
the recondenser type. Certainly, as Oscar) ・ yl says, it becomes extremely low efficiency, and it
is not practical (it becomes. The explanation of this matter will be described later by (P) and (Q)
of (FIG. 11). Therefore, if the movement style possessed by this Bayle Dryo is further improved,
even if it is a capacitor type, it can expect even higher efficiency than that of the conventional
product 5 rather than lowering its efficiency. It is That is the "double motion conversion system"
of the present invention. This dual movement is the vibration of the diaphragm, which is the
movement of ordinary speakers such as the dynamic beaker in addition to the compression
movement of air by the hidako and hidden 0 like accordion curtains of the bail driver. In
addition to back and forth movement, it is said that it will be done in the same phase all over at
the same time. Below, I will describe the details of this matter. A 5-mass general push-pull type
condenser speaker (Fig. 3) stretches a light and soft vibrating membrane 6 in the center of a
perforated fixed electrode 7 designed to pass through two sheets of air well. Is a method of
metallizing '(i.e., metallizing) an extremely thin plastic film (about a few meeklons to about 10
micro-seconds) so that electricity can pass through. さて9. A high DC voltage of about 3000 V
to about 4000 V is applied between the two perforated fixed electrodes 7 and the vibrating
membrane 6.
E in the figure of (FIG. 3) is the polarized power supply. This is a bias voltage. (Hereinafter, the
perforated fixed electrode will be referred to as "fixed electrode") In addition to this, when the
audio signal voltage is superimposed, the diaphragm 6 moves back and forth according to the
audio signal. In FIG. 3, at T-11 to 8 ° P's, the OutaPut side has high impedance. However, in this
case, it is a flat-plate push-pull condenser speaker, which is shown in (A), (B), (C), (D), (D), (E), (F),
(FIG. 4). It is the present invention that it is bent and operated according to the order of. First of
all (Fig. 4), bend the flat type push-pull condenser speaker of (A) 180 degrees like (B).
Furthermore, as shown in FIG. 4 and (C), another bending is performed 180 degrees to the
opposite side. Thus, when it is bent about several times to about 10 times as in ■), it is noticed
that a common portion is formed in the facing fixed pole 7. (E) (The common part of the fixed
pole 7 is put together and made into one oil passage. Add a bias voltage to this, further voice
signal type. If pressure is superimposed, it operates as shown in (F). In the figure of (F), W and Y
are the present invention, and X and Z are conventional flat-plate push-pull condensers. The
operation of the upper half cycle and the lower half cycle of the audio signal is as shown in the
figure. (F) of sl (FIG. 4). ), That is, W and 1 ° X are upper half cycles, and Y and Z are lower half
cycles.
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4. Brief description of the drawing (Fig. 1) is a cross-sectional view of Ha's EndPage: 7-il driver,
invented by Mr. Oscar Bail. (Figure 2) is the shape of the vibrating membrane of the bayle driver.
(M in FIG. 2) is a diagram in which the diaphragm 1 reproduces an audio signal of the upper half
cycle. (N of FIG. 2) is a figure in which the diaphragm 1 reproduces the audio signal of the lower
half cycle. (Fig. 3) is a general flat plate type push-pull fixed pole 7 facing each other is oiled to
become (E). (F Oki W and Y are the present invention. X and Z are the conventional flat plate 6W
and X is the upper half cycle operation. Y and 2 are 5 operations in the lower half cycle. (FIG. 5)
shows how to maintain the vibrating membrane 6 of the present invention. (A) is a figure in
which the vibrating membrane 6 is connected by a thread 8. (B) is a figure which shows the place
which adhere ¦ attaches the thread ¦ yarn 8 to the vibrating membrane 6. FIG. (C) is the figure
which added the fixed pole 7 to (b). (D) Close, close up where it is. (りはさらにクローズアップ
。 (F) shows where the yarn 8 is adhered to the vibrating membrane 6. (Fig. 6) is an accordioncurtain-like "hidder" open. (Figure 7) is a diamond-shaped iko in the scheme of (Figure 6). ライザ
ー10をつける。 (FIG. 8) is a diagram in which the fixed electrode 7 is divided and 9 working
electrodes 12 and an accelerating electrode 13 are added. (FIG. 9) is a wiring diagram of FIG. 8
(FIG. 8) and FIG. 9 is an explanatory diagram of an operation principle 0 of (FIG. 8) and (FIG. 9).
(Fig. 11) is a conventional wiring diagram of the Hung Condenser Speaker as it is. (M in FIG. 13)
applies the electret type to the present invention. (N in FIG. 13) applies the electret type to the
present invention, and in particular (FIG. 7). (FIG. 14) is a diagram in which (FIG. 8) and (−FIG. 9)
are realized by an electret type. The number 1 in each figure, the vibrating membrane of the Bayl
φ driver. 2、マグネット。、3. ポールeピース。 4、スタビライザ。 7, fixed pole. 8, yarn.
9、ゴムヒモ。 に10. イコライザー。 11, sound absorbing material etc. in the equalizer. 12,
working electrode. 13, accelerating electrode. 14, electret element. Patent applicant's fine 1)
Signal-(爾 in Fig. 2) (N in Fig. 52) EndPage: 8 drawings Drawing 1------73-(Fig. 38) Drawing
EndPage: 9 (4 in Fig. 13 EndPage: 10
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