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JPS5368238

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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
financial decisions, should not be based on machine-translation output.
DESCRIPTION JPS5368238
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross sectional plan view of a part of a folded
diaphragm portion for explaining the operation principle and construction principle of an
electroacoustic transducer having a folded diaphragm, and FIG. FIG. 3 is a development view of a
vibrating membrane, and FIG. 4 is an explanatory view of a pattern of a conductive film of the
one embodiment of the electroacoustic transducer having the folded diaphragm of the present
invention. Fig. 5 is a perspective view of a part of a vibrating membrane, and Fig. 6 is a
perspective view for explaining an aspect in which the vibrating membrane is attached to a
frame. 1-------------------Plastic thin film, 2,3----------------------------------------------------- Screw LAI. A2
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DETAILED DESCRIPTION OF THE INVENTION 1-, ti-g> jj) The present invention forms a
conductive film having a required pattern on one side or both sides of a thin film of silastic and
folds it, and folds it. Folding fi motion plate attached to the frame body A folding diaphragm
disposed in the magnetic field is provided to improve the th electroacoustic transducer. 1 is a
cross-sectional plan view of a portion of the folded diaphragm portion Kbff which is used to
explain the construction principle and operation principle of the tv air acoustic regenerator
having the above-described two configuration forms. In FIG. 1, 1 is a thin film of plastic, and a
conductive film of a required pattern which is separately formed on both sides of the thin film 10
of Lt plastic two to three times ago. It is attached to the frame by folding 1 so that the shape
becomes wavy as shown in FIG. Note that No. 5 is an air layer formed by folding the abovedescribed plastic thin film l. Now, the folding machine 1 placed in the parallel magnetic field E of
the folding machine 1 to the conductive films 2 and 3 deposited and formed on the plastic thin
film when the current kmL in the direction indicated by the symbol in the figure In the figure,
each part of plastic thin Ill is 2-arrow in the figure +! , All air layers 41414 ... decrease in volume
and increase in internal pressure, and all air layers 515-+ increase in volume and decrease in
internal pressure Because the plastic thin film l both sides emit the same amount of sound waves
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of opposite polarity each other, 1t, when the direction of the current applied to the conductive
film 2.3 is opposite to the case of 1 before, the plastic The acoustic wave of the opposite phase to
the above case is emitted from both sides of the thin plate l. In the electro-acoustic transducer
comprising a fold-like plate or plate according to the above-mentioned t construction principle
and operation principle so as to emit the sound wave, it is deposited and formed on the plastic
thin film 1 so as to have a desired pattern The conductive film 2.3 is, for example, a terminal
provided at its end portion after they are connected in series? Power for driving is supplied via
the conductive film 2I3. As the conductive film 2I3 described above, an aluminum foil having a
width of about 3 mm and a thickness of about 15 klong meters is generally used, and the
terminal portion ( In general, driving power is supplied through a metal eyelet 3--. However,
when the end portion having the above-described configuration is used, the contact resistance
value between the aluminum foil and the eyelids tends to gradually increase with time, and when
heat is generated due to the increase in the contact resistance value, the aluminum foil is thereby
used. The oxidation of the lead-out portion of the metal is promoted to further increase the
contact resistance value, and the function of the electroacoustic transducer is degraded, which
raises the problem that the mechanical property between the aluminum foil and the eyelet It has
also become a problem that when the contact state becomes defective, the vibration is
transmitted to the frame to generate a flicker and an abnormal sound.
The present invention is an electro-acoustic transducer comprising a folding diaphragm formed
by folding a thin plastic film on which a conductive W film of a required pattern is formed by
deposition and attaching it to a t frame body. As a frame to which the plate is to be attached, the
two opposing sides are respectively constituted by columns made of electrically conductive
material so as to be splittable, and each end 1 of the two columns of electrically conductive
material is made of insulating material A conductive film of a required pattern formed on a thin
plastic film between each divided member of the pillars K made of conductive material of 4-wood
described above using a member formed by connecting members using a connecting member. An
electro-acoustic system comprising a folding diaphragm in which a frame is provided with a
terminal in which a required conductive film portion at each end to be cut by Kj- is sandwiched,
and a terminal electrically hK connected to the above-mentioned column made of conductive
material is provided. To provide a converter for the conventional It has solved the problems of
Hibikikaya exchanger - and than, or less, clarify the specific contents with reference to the
accompanying drawings. ! 2 is a solid #l of the folded diaphragm portion in the electroacoustic
transducer provided with the folded diaphragm of the present invention! FIG. 12 is a perspective
view of an ill-like one, in this furnace 2 a pillar of conductive material each of mu and fi, and a
connecting member made of an insulating material of Bl and Bun respectively, the two mentioned
above The conductive substance of the present invention is connected to a plurality of columnar
members 1 and 2 (hereinafter simply referred to as columnar members Al, k2 and 1 and 2
connecting members n1 made of an insulating material). E2 (hereinafter sometimes referred to
simply as connecting member-9-) means that two columnar members 19 are connected by two
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connecting members B1 ░-5 = TSaK at each end. It is made into a frame by being done. Two
pillars M1 according to the configuration of the above-mentioned frame. The manner of
connecting and securing the shaft and the two connecting members Bl may be arbitrary, but in
the case where the connecting members Bl,-are made by injection molding of a plastic material,
the two as described above at the time of injection molding Columnar body 11A! End of 2? It is a
desirable mode of connection fixation to perform continuous fixation tube in the state embedded
in connection member B1-Ba. Each of the two pillars Als4 described above consists of three
divided members AIBIAlb + A2alAjlb, and in the pillar A1, the divided members A1B and the
divided members 1b are bonded and fixed by, for example, the screws 6g6. The columnar
member A2 is formed of a divided member and the divided member Asbt and the divided
member All1l are present in a portion bellowed by the divided member A11A shown in the
eighth embodiment. 2a, although the relationship between the divided members ? IA11tl is
clearly indicated by the reference 6 in FIG. 2, for example, the application of the coupling means
by screws is shown in FIG. It is constituted by being bonded and fixed by the screw holes ?, ?, иии
which are drilled in the dividing members 6-Am.
Reference numeral 899 is a screw hole drilled in the connecting member Bl # c, which is used as
a screw IJ for screwing the screw hole a, 9 & C, and an LSt'i connection terminal, and the
connecting wire is made by the screw 12 ? Ms. The rod plate 10611 to which the 815 is
connected is fixed to the connecting member so that the columnar body A1 and the connecting
wire 14 are electrically connected reliably, and the columnar body A2 and the connecting wire
15 are electrically connected. It is connected surely. In the figure, the symbol 16-l is a connection
terminal provided on the side of the connecting member as required! 11% This connection
terminal 16t17 is the connection terminal 1211! Similarly to S, Fr, It, aki, # 1. e '= core "=; Pa;'
The divided members m1w5 lb # '2 as Agb in the columnar body ALIA2 are formed so as to be in
pressure contact with each other by the bonding surfaces each having a wide area, and the two
divided members A1a and m2 in the columnar body lK are The conductive film portion of the
required pattern to be applied to the conductive film deposited on the thin film l of the plastic
constituting the vibrating film C ? is bonded between the bonding surface with lb and the
conductive film portion of the columnar body 2 By bonding the conductive film portion of the
required pattern on the end portion of the conductive film deposited on the plastic thin film l
between the joining surfaces of the two divided member magazines and the metal 2b, A wide
area of each divided member in which each wide-area portion at each end of the conductive film
having a required pattern formed on one side or both sides of the thin film 1 has a columnar
body AllA2KhFT, respectively We are reliably pressed clamped by a coupling surface with. As
shown in the embodiment shown in the sixth embodiment, a projection, a recess, and a t which
are fitted to each other on the coupling surface of each divided member AI & @ "1 & m" 2 & +
A2b in the columnar body A1 blur A2 When provided, the state of pressure welding and
sandwiching between the columnar body A1eA2 and the conductive film becomes even better. As
described above, in the present invention, the conductive film 8-portion having a wide area of the
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end portion of the conductive film having the required pattern 1 deposited and formed on the
thin film 1 of company plastic is each divided in the columnar body 11 In order to supply power
to the conductive film of the required pattern deposited on the plastic thin film 1 in the state of
being pressure-sandwiched by the bonding surface having a large area of the members mua and
lbs-1AIlb. The contact resistance in the power supply portion does not increase with time, and
the heat radiation is also performed well, and no noise is generated in the connection portion. It
is obvious that all problems can be solved well.
Next, the embodiment of the pregnancy film C used by being attached to the frame body of the
upper side of the folded diaphragm will be described. FIG. 3 shows conductive films of required
patterns on both sides of a thin plastic film l. ! In FIG. 3, 1 is a thin film of plastic and 2 is a thin
film of plastic 1 and 1 is formed on the surface of the thin film 1 of plastic. The conductive film 3
is a conductive film deposited on the other surface of the plastic thin film l, and the abovementioned conductive 9-films 2 and 3 are made to show a required pattern and are faked. . The
lifting film C illustrated in FIG. 3 is made by applying Alden Eyum foil of appropriate thickness to
both sides of the glass thin film l, and then performing photoetching treatment on each of the
previously-described aluminum foils. By applying the conductive film 2.3, the conductive film 2.3
having the required pattern can be formed as deposited on each surface of the plastic thin film
10, and in the palm 3 figure, the solid line shown on the right side of the figure is shown. The
portion shows the state of the conductive film 3 and the state of the conductive film 2 is shown
in the form of the conductive film 2 at the time of autopsy shown in FIG. FIG. 4 illustrates the
pattern of the conductive film 2.3 in the vibrating film C of FIG. 3 described above and illustrates
it. In FIG. 4, 2 b and 3 b are electrically connected by an appropriate means. The conductive films
2 and 3 respectively deposited and formed on both sides of the thin plastic film 1 are electrically
connected to each other at * b and Sb portions in the figure, so that 2a ? The portions
corresponding to each other in the two conductive films 2.3 having burnt corresponding to each
other in the plastic thin film 11 as well as being connected in the KM sequence as 2b ? lO-3?b
? 3a are identical. It is made for the current of the direction to flow. In FIG. 3 and FIG. 4, the end
of the conductive film 2.3 is made to have a wide area respectively, but the portion of the end
1iaek corresponds to the columnar body A1 in the frame described above. The connecting
members of each of the divided members A1 and A1) -arms 2b in FIG. 2 is a perspective view of
the vibration 11 * IEC in a state where the vibrating film C of FIG. 3 is folded, and the portion of
the end aatsa in each conductive film 2.3 is a conductive film 2.3. The end 2ask of the is turned
to the front side, and the plastic thin film 1 is bent to the back side. FIG. 6 is a perspective view of
rounding illustrating how a vibrating membrane C folded as shown in FIG. 6 is attached to a
pillar 1 j A 2 in a frame as shown in FIG.
11-The pattern of the conductive film 2.3 shown in FIG. 4 described above is an example of a
pattern, and in the practice of the present invention, a vibrating film on which a conductive film
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having another pattern is deposited is used Of course it may be done. If the metal material for
forming the columnar body A1 and A2 ktfl is made of the same metal as the constituent material
of the conductive film, it is preferable because corrosion of the conductive film due to the contact
potential gradient occurring at the time of contact with different metals can be prevented. An
alloy such as brass may be used as the constituent material of A2, and the contact surface of the
vibrating film CKb with the conductive film 2I3 may be 1 @@-on which surface plating treatment
with an appropriate metal is performed. As described above in detail, as clearly described in
detail 8, in the T air acoustic transducer provided with the folded diaphragm of the present
invention, the power supply portion for the conductive film in the vibrating membrane C has a
wide area t. Therefore, stable operation is expected with a low contact resistance value over a
long period of time, and the heat generated in the conductive film in the vibrating film C is good
due to the large heat capacity of the columnar body. Can be increased by about 20% of the
allowable input power Q20 of the diaphragm, and further, the flickering of the 12-film is
prevented, and the frame supporting the diaphragm has sufficient rigidity. Therefore, there is an
advantage such as not causing unnecessary vibration in the diaphragm.
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