JPS62200231U

JPS62200231U -

Info

Publication number: JPS62200231U
Application number: JP8864086U
Authority: JP
Priority date: 1986-06-11
Filing date: 1986-06-11
Publication date: 1987-12-19
Also published as: JPH0356981Y2

Description

[Brief explanation of drawings]

第１図は冷媒の異常低圧時における本案圧力ス
イツチの一実施例の概略の縦断面図、第２図は第
１図に対し９０°ずれた状態の同様の断面図、第
３図は冷媒の正常な圧力状態における部分の縦断
面図、第４図は凝縮器内の冷媒の圧力が所定値に
達した時の部分の断面図、第５図は冷媒の異常高
圧時における同様断面図、第６図は本案圧力スイ
ツチの展開斜視図、第７図は第３の可動子及び接
点部の概略の展開斜視図で第８図は従来の圧力ス
イツチの概略の縦断面図である。１１……スイツチケース、１２……カバ、１３
……導入孔、１５……ダイヤフラム、１６……第
１の可動子、１７……孔、１８……環状の突出部
、１９……第１の反転板、２０……第２の可動子
、２１……穴、２３……第２の反転板、２４……
通孔、２５……第１の可動接点、２７……スイツ
チレバ、２８……第１の固定接点、３０……第２
の可動接点、３２……スイツチレバ、３３……第
２の固定接点、３５……リング状部、３６……突
子、３７……孔、３８……第３の可動子、４２，
４３，４４……長尺の壁部、４５……短小部、４
６……ばね、４７……第１の押棒、４８……第２
の押棒。 Fig. 1 is a schematic longitudinal sectional view of an embodiment of the pressure switch of the present invention when the refrigerant is at abnormally low pressure, Fig. 2 is a similar sectional view shifted by 90° from Fig. 1, and Fig. 3 Fig. 4 is a longitudinal cross-sectional view of the part under normal pressure conditions; Fig. 4 is a cross-sectional view of the part when the pressure of the refrigerant in the condenser reaches a predetermined value; Fig. 5 is a similar cross-sectional view when the refrigerant pressure is abnormally high; FIG. 6 is an exploded perspective view of the pressure switch of the present invention, FIG. 7 is a schematic exploded perspective view of the third movable member and contact portion, and FIG. 8 is a schematic vertical sectional view of the conventional pressure switch. 11...Switch case, 12...Hippo, 13
... Introduction hole, 15 ... Diaphragm, 16 ... First mover, 17 ... Hole, 18 ... Annular protrusion, 19 ... First reversal plate, 20 ... Second mover, 21... Hole, 23... Second reversal plate, 24...
Through hole, 25...first movable contact, 27...switch lever, 28...first fixed contact, 30...second
movable contact, 32... switch lever, 33... second fixed contact, 35... ring-shaped part, 36... protrusion, 37... hole, 38... third mover, 42,
43, 44...Long wall part, 45...Short part, 4
6... Spring, 47... First push rod, 48... Second
push stick.

Claims

[Scope of utility model registration request]

a cover having a fluid introduction hole; a cylindrical switch case attached to the cover in a sealed state;
A first movable element that is slidable within the switch case and has a hole in the center and an annular protrusion on the opposite side of the cover; a diaphragm whose periphery is sandwiched between the cover and the case so as to cover the reversal plate; a second movable element provided on an opposing side and having a hole in the center; a second reversing plate held by the movable element and having a through hole in the center; a third movable element that faces the movable element and has a long wall part that constantly contacts the second movable element under spring pressure; and a short part that is located away from the elongated wall part; Fixed contact and this first
A first movable contact which is always turned off by the spring pressure of the switch lever with respect to the fixed contact, a second fixed contact, and a ring-shaped portion surrounding the third movable element, and The second fixed contact is always turned on by the spring pressure of the switch lever, which is provided with a protrusion that protrudes from the short part of the third movable element and has a hole at its free end. A movable contact, one of which abuts the first reversal plate, and the other of which faces the switch lever of the first movable contact via the first movable element, the second reversal plate, the second movable element, and the protrusion. and a second push rod, one of which contacts the second reversing plate, surrounds the first push rod, and the other of which faces the protrusion of the second movable contact. .