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JPS55132030

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DESCRIPTION JPS55132030
Description 12 capacitor for audio equipment 1 for a capacitor for audio equipment which can
use at least two mutually isolated members forming a magnetic pole, wherein the natural
resonance frequency of each member is a value outside the audible frequency range A capacitor
characterized by 2e #-A capacitor according to claim 1, wherein each member is constituted by a
plate curving in a plate shape, and the convex surface of this plate is disposed to face the concave
surface of the adjacent plate. Capacitor. 3. A capacitor for acoustic equipment comprising at least
two mutually-insulated members forming an [&, wherein at least one of the members has a
natural resonant frequency in the audio frequency range, said at least one member being A
capacitor that is attached to the rest of the capacitor through a damping member to reduce its
resonant level. 3. A detailed explanation of the light In a capacitor for audio equipment, it is
desirable that the overall impedance is low, the # s1l loss (tan δ) is small, and the shape is as
small as possible, whether fixed or variable. A capacitor that satisfies such a desirable condition
is used as a small capacity capacitor of 2dpF or less for phase correction in the amplifier and
used in a disk or tape record recording / reproducing equalizing circuit s, ooo ~ 0.000pF By using
it as a capacitor with an intermediate capacity of, and as a large-capacity capacitor for the interamplifier supply, for power supply # circuits, and for correction of high frequency band, the
remarkable regeneration which could not be obtained in the prior art I will improve the sound
quality. For example, it is known that using the mica capacitor for the phase correction of the
amplifier, it is known that the sound quality that is violated can be obtained. However, the sound
quality is improved by replacing the capacitor with a suitable one of EndPage: 1 tan δ. It can be
improved more significantly. However, the object to be compared with the reproduction sound
quality in the sound reproduction device is only the original sound, and not the reproduction
sound quality by the Noh sound device. And even if a sound quality that is much better than the
normal playback sound quality V is obtained using a tan δ 1 \\ capacitor, still slight differences
may still be heard compared to the original sound Can clearly be seen in trained listening sounds.
The invention number was studied in detail as to whether it is due to such aural difference. As a
result, it is possible w!
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It has been found that mechanical resonance in the same wave number region has a great
influence on the sound quality. An object of the present invention is to provide a capacitor for
audio equipment which can completely eliminate the adverse effect of mechanical resonance of
the C pole member and therefore always obtain excellent sound quality. . Therefore, according to
the present invention, the electrode member is configured such that the change in sound quality
due to the change in capacitance based on mechanical # photographing becomes a negligible
level in terms of hearing. That is, the present invention is characterized in that, in a capacitor for
acoustic equipment comprising at least two mutually-insulated members forming an electrode,
the natural resonance frequency of each member is a value outside the audible frequency range. .
The invention also relates to a capacitor for an audio device, comprising at least two mutually
insulated parts forming an electrode, wherein at least one of these parts has a natural resonance
frequency in the harmonic wave number range. It is characterized in that it is mounted on the
remainder of the capacitor via a damping member to reduce its resonance level. The capacitor
according to the present invention, regardless of which of the above-mentioned constructions, is
not a surface of the electrode member or an oxide film or the like having a dielectrostatic
property, is not a magnetic substance, and has no magnetic substance in the vicinity thereof It is
particularly desirable to have a configuration that meets each of the requirements. Hereinafter,
the present invention will be described with reference to illustrated embodiments. The capacitors
shown in FIGS. 1 (4) and 1 (B) are large-capacity capacitors of fixed capacitance type, and have a
circular substrate IO made of an insulating material. For example, six holes are formed in the
substrate / θ, and these holes are arranged equiangularly apart from each other. Insert six
screws / 2 in the holes of C and fix the number of electrode plates 11 to the substrate / θ by the
screws 12. The m-pole plate is, of course, disposed opposite to the phase q- to form a capacitor
by means of C-pole. The number of Ichihara's me which feeds the capacitor is fixed relative to the
substrate / θ. And-match, when the plate plate is resonant, the capacity of the capacitor is the
frequency f. Will vary significantly. And, this variation in capacitance causes audiblely detectable
distortion. In order to divide the adverse effect of the undesirable mechanical resonance of such
an electrode plate I'm, in the present embodiment, the characteristic @ mechanical resonance
frequency f of the electrode plate / + in the assembled state. Is set to be a value outside the town
I @ frequency range. To that end, as an example, each electrode plate / l is shaped in a dome-like
curved shape.
Three holes 16 and three notches 7g are formed on the outer faces of each electrode plate / 4i
corresponding to the six holes of base & / θ, and these holes lAH and notches / 1 are formed.
Arrange alternately. The respective electrode plates / blades are offset from each other by 600
and arranged on the substrate IO in an overlapping manner. At that time, the convex 1f [I (upper
surface in the drawing) of the electrode plate / 1 is made to face each other with the concave
surface of the 11I negative plate / + which is in contact with the contact surface. Each odd-
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numbered electrode plate / + with each other by 3 screws 12 separated from each other by / 20
', and each even-numbered electrode plate / F with the remaining 3 screws / 2, respectively to
the substrate 10kX Fix it. Between the odd-numbered t-poles & l-daggers and between the evennumbered even-numbered electrode plates / +, the screws 12 allow the spacer wedges made of
insulating material to be idle, and each spacer wedge is even-numbered. Of the electrode plate
Meg and the notch 1g of the odd-numbered electrode plate / l. The thickness of the spacer weir
is equal to the thickness of the electrode plate H plus twice the electrode gap. After the electrode
plate / l is disposed on the predetermined surface 1 on the substrate / θ as described above, the
end page (2): Each electrode plate / F is fixed to all Y by tightening a screw 22). The rigidity of
each electrode plate t4I and the tightening of the nut n are set appropriately for the torque, so
that the natural mechanical resonance frequency f of each electrode plate / 41. Should be higher
than the town hearing area. Reference numeral 2 indicates a lug terminal. According to the
above-mentioned configuration, the l # 1 wave number of the current supplied to the capacitor is
the natural mechanical resonance frequency f of the electrode plate l. Even when the electrode
plate f4t swings approximately when it substantially matches, its resonance same wave number f.
Because it deviates from the sound wave area of the town itself or town, mechanical wells in the
audible area of the steel sheet, and thus aurally distinguishable 1-1 l capacity characteristic does
not cause a peak change (Hizumi). Furthermore, according to the above-described configuration,
although it is formed into a dome shape to enhance the proboss of the electric & plate / if, the 'It
value temporary 0 convex surface is in contact with the V4! By arranging the electrode plate so
as to face the concave surface of the electrode plate, it is possible to taste the electrode gap as
well as to increase the overall thickness of the capacitor instead. It is preferable that the
electrode plate / f in the above-described configuration be formed of a nonmagnetic conductive
material, and that a surface layer of a conductive material stable in air, for example, a plating
layer of gold, platinum, rhodium, etc. be formed . The above configuration can prevent the
formation of an oxide film, and thus a solid dielectric having new semiconductive properties, on
the electrode surface, and can prevent an undesirable change in capacitance of the capacitor over
time. .
In addition, by selecting the material of the spacer weir, we can make the spacer weir 1! It is also
possible to act as a control of the pole member / F. Furthermore, in the above-described
configuration, the electrode plates disposed at the highest position and the lowest position of the
electrode plates may be formed thicker than the remaining electrode plates. The reason is that
while the Coulomb method (and hence the bending moment) acts only on the above two
electrode plates, the same forces in opposite directions act on the around electrode plates, and
the resultant force becomes zero. It is. In this case, the electrode plate may not necessarily be
formed in a dome shape. The first diagram (H, (B) is a defective one according to another
embodiment of the present invention. In the present embodiment, the electric and embryo
material n is configured as a large number of cup-shaped bodies whose diameters are
sequentially different. These electrode members must have the odd-numbered ones stacked on
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3
one another at the bottom and fixed together with screws l in order from the larger diameter, and
similarly each v4 number ones stacked on one another at the bottom Fix one by one with I.
Furthermore, the assembly of the odd-numbered electrode members and the assembly of the
even-numbered electrode members run one another so that the required electrode gap is formed
between the respective assemblies. Attach the spacer ring 30 made of an insulating material such
as polystyrene resin to the outer peripheral edge G of each electrode member, and contact the
outer peripheral edge of the electrode member attached thereto by these spacers 4 ' l! Hold at
one slope evil of other members. Reference numeral 32 denotes a lug terminal. According to the
above-mentioned configuration, the spacer ring 3θ or the electrode gap is held constant, and the
vibration at the outer peripheral edge of the 'It pole member is damped. Therefore, temporarily
the inherent mechanical resonance l @ wavenumber f of each electrode member. * The frequency
of the current supplied to the capacitor, or the above resonant frequency f, even though it has a
value in the audible same wave number domain. * The resonance of the pole piece which occurs
when it substantially coincides with that of the pole piece is sufficiently damped and no harmful
hearing loss occurs. In the third embodiment described above, the spacer ring 30 may be used as
a seal member to hold the inside of the capacitor in a vacuum or in an inert atmosphere. In that
case, it is possible to prevent the surface direction of the electrode member from becoming hated
and to effectively prevent the generation of an oxide film which causes the deterioration of sound
quality with the passage of time. In the example shown in FIGS. 3 (A) and 3 (B) # (0), the l ′ ′ j
electrode member 31 is configured as a rod body of a cross section or a square, and a large
number of electrode members 3 of such shape are arranged in a matrix. .
The electrode member 31 having the same polarity is conducted to one of the electrodes 4a and
74 while the electrode member 31 having the same polarity is conducted to the electrode
member 31 having the same polarity as the electrode member facing each side of the square in
the mt plane. And mechanically connected via a spacer plate 3g which is also used for
positioning. As this mechanical connection means, a projecting rib that protrudes inward to the
conducting plate 36 is pressed at the contact portion between the 14 & member 31 and the one
bending plate 36 described above, and the electrode portion EndPage is made by this projecting
ring. : 3 materials and 3 g are pressed against the spacer plate 3g and the conduction plate 36 in
the above-mentioned manner. In the present embodiment, the solid 4J mechanical resonance of
each electrode member 3 can be sufficiently damped by the positioning plate 3g. Moreover, since
each electrode member 31 is not in a plate shape but in a rod shape, the inherent mechanical
resonance frequency fQ can be made higher than that of a town hearing mantissa region, so that
the adverse effect due to the resonance of the electrode members is completely eliminated. Can.
The cross-sectional shape of the rod-like electrode member 3fl is advantageously in the form of a
square or a rectangle in terms of space, but is not necessarily limited to such a shape, and may
be, for example, a triangle, a circle or the like. As apparent from the above, according to the
invention, 1! It is a C or iJ function that reduces the sense of stiffness based on the mechanical
resonance of the electrode member by shifting the characteristic mechanical resonance same
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wave number fo of the pole member from the allowable range or effectively damping the #
vibration of the electrode member. For that purpose, it is not necessary to reduce the shape of
the 'IIL plate and thus the capacitance of the capacitor. It goes without saying that the present
invention is not limited to the above-described embodiment of the charge, and that various
modifications and changes can be made within that range. Fig. 1 (4) * (B) n, a longitudinal
sectional view and a partial plan view of a first embodiment of a condenser according to the
present invention, Fig. 2 (2), (81i, respectively) FIG. 3 (A), (B) and (0) are respectively a front view
of a third embodiment of a capacitor according to the present invention, and FIG. They are -B
sectional view taken on the line, and a CC sectional view taken on the line. 1g, 2A, 3re: electrode
member, wedge, 3θ, 3g: spacer. Patent applicant Stax Industrial Stock Corporation 1, '. Attorney
Attorney Atsushi Sugimura 'Mi',-One. Same as above f'N'Njl'jt; : Figure 1 (B, A, Figure 2 (A (B,
EndPage: 4
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