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JPS4729527

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DESCRIPTION JPS4729527
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing a conventional ceramic
trimmer capacitor, FIG. 1 is a longitudinal sectional view thereof, and FIG. 2 is a plan view of a
stator. 3 and 4 are views showing an embodiment of the present invention, and FIG. 3 is a
longitudinal sectional view of the embodiment of the present invention. FIG. 4 shows a stator of
the embodiment of the present invention. It is a partially cutaway flat plan view. E · Synthetic
resin film · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · silver electrode, E · · · · · · · · · · · · · · · · · · · stator side
terminal, 19 · · · · roke Side terminal. Figure 1 Figure 2 Figure 77 Actual opening 4729527 (2)
Figure 4 Figure 3-78-
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to trimmer
capacitors, in particular ceramics) 9q-: Iyf "y 4 joxf- II and"-"and 007 '. As shown in FIG. 1 and
FIG. 2, a conventional ceramic trimmer capacitor is a semicircular silver-gold stator 2 which is an
insulator that forms a joint 1 and a semicircular silver etc. The adjustment shaft 5 is inserted into
the rotor 4 formed of a wound body forming the W pole 3 and is attached with a screw 7 via a
spring 6, and the silver electrode IK of the stator 2 is connected to the terminal 8 The terminal 9
is connected to the steel weight IM3 of the rotor 4 through the adjusting shaft 5 and the spring
6a. However, due to the thickness K of the steel weight of the stator 2, this higher trimmer
condenser inclines the rotor 4 attached to the stator 2 so that both contacts are indifferent, and
when the rotor 4 is rotated, The surface of klkllbx was abraded and dislocated to a portion other
than the silver electrode 1 of the stator 2 and had a defect that insulation failure occurred. >, The
present invention is high power I # resistance and less 4 m / high frequency loss and heat
resistance and cold resistance, both on the contact of the stator and one of the contact surface
with the contactor both The present invention eliminates the disadvantages of conventional
trimmer capacitors by applying a synthetic 1 resin film having properties. An embodiment of the
present invention will be described below with reference to the drawings. In FIG. 3 and FIG. 4, the
symbol lO is a stator which is sharpened from a deposit, 11 is a buried semicircular silver
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electrode provided on the upper surface of the stator 10, and 12 is a synthetic resin film applied
on the upper surface of the stator 10. This synthetic resin film H1 has high resistance to stomach
stomach, less high frequency loss and heat resistance and heat resistance and <) CIK cold
resistance, for example, a fluorine resin is blown "1" or bonded or a fluorine resin film It is a
thing. Numeral 13 is a rotor made of a dielectric, and a # 1 semicircular silver electrode provided
on the upper surface of the 14 # i rotor 13, a rotating shaft inserted through the 15ij stator 10
and the rotor 13, and a spring 16 It is attached at 17. The reference numeral 18 denotes a steel
weight "jll" of the stator 10, and a reference numeral 19 denotes a rotor side terminal connected
to the silver electrode 14 of the rotor 13 through the spring 16 and the rotation shaft 15f. In the
above embodiment, the synthetic resin film 12 applied to the upper surface of the stator 10 is a
fluorine resin, but in addition to the sheet-like polypropylene resin, polyester resin A, resin, epoxy
resin, etc., the upper surface of the stator 10 Bonded to
Further, although the synthetic resin film 12 is applied only on the upper surface of the stator
10, after applying the synthetic resin klz on one or both of the contact surfaces of the stator 10
and the rotor 13 which may extend over the lower surface of the rotor 13. (By polishing the
synthetic resin 11112 sufficiently to make each surface completely flat), and be able to equalize
the contact between the stator 10 and the rotor 13, and by applying the synthetic resin film 12,
Rotor 13 [consists of a capacitor formed thereby and a capacitor formed of a synthetic resin film
are connected in series, but the thickness of the synthetic resin film 12 is sufficiently reduced to
the characteristic of the trimmer capacitor Can be eliminated. Furthermore, the temperature
coefficient of the trimmer capacitor may be determined based on the total temperature including
the synthetic resin film 12 [the characteristic is a predetermined value. As described above, the
ceramic trimmercon of the present invention, 1 den is a synthetic resin! Since lI is applied, there
is no risk of insulation failure even if the rotor is rotated. It has excellent moisture resistance.
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