close

Вход

Забыли?

вход по аккаунту

?

JPS6121700

код для вставкиСкачать
Patent Translate
Powered by EPO and Google
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 JPS6121700
[0001]
The present invention relates to a piezoelectric sounding body which streamlines the
incorporation of the sounding body produced or obtained into various devices. Recently, instead
of electromagnetic buzzers, sound generators using piezoelectrics have come to be incorporated
into electronic devices and home appliances because piezoelectric sounders can be made
relatively smaller and they are robust and consume less power. It is because it has the feature
that there are few. In the conventional method of manufacturing a piezoelectric speaker, for
example, as shown in FIG. 1, a thin disk-shaped piezoelectric ceramic 1 represented by PZT is
fixed to the center of a large diameter metal diaphragm 2 with an adhesive. The ?j method
(thickness, diameter) of the piezoelectric plate 1 and the metal diaphragm 2 is optimally designed
according to the oscillation frequency. Note that silver paste F or the like is baked on both sides
of the piezoelectric plate to apply electrodes, and polarization processing is performed in the
thickness direction. The outer periphery of the metal diaphragm 2 is fixedly housed in the case 5
for a piezoelectric body, and a resin lid 6 is attached to the lower side so as to be fitted to the
case 5. The lead wires 3 and 4 are configured to be drawn out from the holes on the side surface
of the lid, respectively. . However, in such a process, almost all manual processes have to be
relied on, which inevitably leads to a decrease in productivity. The present invention is intended
to eliminate these drawbacks, and one of the first metal flanges is integrally molded so that one
lead electrode is formed on the side of the metal diaphragm and has a predetermined interval.
Using a second metal tree member integrally formed so that the member and the other lead
electrode are continuous at the same distance in a comb tooth shape, the piezoelectric body is
mounted and fixed to the metal diaphragm of the first metal tree member The lead electrode
portion of the second metal tree member is fixed to the other surface of the piezoelectric body to
form a series of piezoelectric vibrators, and then the resonance box is made of first and second
metal in each piezoelectric vibrator. The main object is to achieve rationalization of the
04-05-2019
1
production of this type of piezoelectric sounding body by clamping and attaching to the lead
portion of the tree member. Hereinafter, an embodiment of the present invention will be
described in detail with reference to the drawings. FIG. 2 is a perspective view schematically
showing one metal tree member 9. The reference numeral 10 denotes a metal diaphragm, 10a
denotes a lead electrode, and 10b denotes a connecting portion for forming a series of lead
electrodes 110a. These members are preferably made of brass, stainless steel, or the like, and are
selectively designed to be H suitable for the oscillation frequency, and there is no limitation on
the thickness of the lead electrodes 10a and 10b, which affects the vibration system. It is
preferable to have a relatively thin film so as not to
FIG. 3 is a perspective view of the other metal tree member 11. 1. A represents a lead electrode,
and 11b is a connecting portion for forming a lead of the lead electrode 11a. The material of the
metal tree member 11 is formed of the same material as the tree member 9. The number of lead
electrodes 10a and lla in the metal tree members 9 and 11 is selected appropriately from the
length of the manufacturing line. FIG. 4 shows an example of a rational assembly process. First,
the metal tree member 9 shown in FIG. 2 is placed on a conveyor (not shown), and a feeder 13
for supplying the piezoelectric body 1 by a robot arm or the like is used. Is mounted at the center
of the supplied diaphragm 10 to fix the piezoelectric body 1 and the diaphragm 10. Thereafter,
the tip of the lead electrode 11 a of the second metal tree member 11 is supplied to move to the
upper part of the piezoelectric body 1. At this time, raised solder processing 11b is performed on
the tip of the lead electrode 11a, and the upper portions of the lead electrode 11a and the
piezoelectric body 1 are sequentially fixed by a soldering iron (automated). A series of
piezoelectric vibrators is formed by these. Next, as shown in FIG. 5, a case for resonance is
attached. That is, a series of piezoelectric vibrators 14 is at the center, a series 15 of cases 15a is
connected in a large number by the connecting portion 15c, and a series 16 of upper lids 16a is
connected in a large number at the connecting portion 16b. Are placed on top of each other. Of
course, the case 15 and the lid 16 are obtained by an injection molding machine and are formed
to have the same size as the pitch of the piezoelectric sounding body 1. Then, as shown in FIG. 6,
the case 15 and the lid 16 are thermocompression-bonded at once in a large number of
respective trains 14 and 15.16 to form a resonance box, and the piezoelectric sounding body is
completed. When these piezoelectric sounding members are incorporated into the device, the
respective continuous yarn portions 10b, 11a, 15c, 161+ are used as cut offs. It should be noted
that there is no limitation to the materials used, etc., and it is possible to utilize the volume
increase effect by the acoustic resonance of the Helmholtz composed of the resonance box and
the sound emission hole. The choice is not limited in the present invention. As described above,
according to the present invention, in the manufacture of a piezoelectric sounding body in which
a piezoelectric body is attached to a metal diaphragm and housed in a case as a resonance box,
one side of the metal diaphragm is placed on the side of ?. The first metal tree member
integrally formed so that lead electrodes are formed and formed at a constant interval and
integrally formed so that the other lead electrode is continuous in the same manner as the
04-05-2019
2
interval in a comb shape Piezoelectricity is mounted and fixed to the metal diaphragm of the first
metal tree member using the second metal tree member and the lead electrode portion of the
second metal tree member is formed on the other surface of the piezoelectric body. It is fixed to
form a series of piezoelectric diaphragms, and thereafter, the resonance box is attached to each
of the piezoelectric vibrators by sandwiching and attaching it to the lead portions of the first and
second metal tree members. Because it is composed of a series of body components, it is rational
An assembly can or eventually improve productivity, it is possible to allow a reduction in costs,
also has the advantage of being able to obtain a sound having a relatively uniform quality
characteristics.
[0002]
Brief description of the drawings
[0003]
FIG. 1 is a view showing a method of manufacturing a conventional piezoelectric sounding body,
FIG. 2 is a perspective view showing an example of a first metal tree member, and FIG. 3 is a
perspective view showing an example of a second metal tree member FIGS. 4 and 5 are route
diagrams showing an example of the manufacturing method of the present invention, and FIG. 6
is a cross-sectional view for explaining the process of thermocompression bonding the case and
the lid.
DESCRIPTION OF SYMBOLS 1 ... Piezoelectric ceramics, 2 ... metal diaphragm, 9 ... 1st metal tree
member, 10 ... metal diaphragm, 10a ... lead electrode, 101) ... connection part, 11 иии Second
metal tree member, 11a иии Lead electrode, Ilb и и и и и и и и и и и и и и и 12 adhesive bond supply, 12a
adhesive material, 13 и и и и и и и piezoelectric feeder 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 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 и Connection part.
04-05-2019
3
Документ
Категория
Без категории
Просмотров
0
Размер файла
11 Кб
Теги
jps6121700
1/--страниц
Пожаловаться на содержимое документа