EP0058409B1 - Dispositif de commutation électrique actionné par pression - Google Patents

Dispositif de commutation électrique actionné par pression Download PDF

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Publication number
EP0058409B1
EP0058409B1 EP19820101035 EP82101035A EP0058409B1 EP 0058409 B1 EP0058409 B1 EP 0058409B1 EP 19820101035 EP19820101035 EP 19820101035 EP 82101035 A EP82101035 A EP 82101035A EP 0058409 B1 EP0058409 B1 EP 0058409B1
Authority
EP
European Patent Office
Prior art keywords
switch
snap
leaf spring
housing
tongue
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP19820101035
Other languages
German (de)
English (en)
Other versions
EP0058409A2 (fr
EP0058409A3 (en
Inventor
Jacques Cutaya
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BorgWarner Transmission Systems Monaco SAM
Original Assignee
Eaton SAM
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eaton SAM filed Critical Eaton SAM
Publication of EP0058409A2 publication Critical patent/EP0058409A2/fr
Publication of EP0058409A3 publication Critical patent/EP0058409A3/de
Application granted granted Critical
Publication of EP0058409B1 publication Critical patent/EP0058409B1/fr
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
    • H01H35/34—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by diaphragm
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
    • H01H35/26—Details
    • H01H35/2657—Details with different switches operated at substantially different pressures

Definitions

  • the safety snap switch has two leaf springs which run essentially parallel to one another and are each clamped at one end, one of which is bent approximately hook-shaped at its free end, while between the hook-shaped end of a leaf spring and the free one At the end of the other leaf spring of the safety snap switch there is an omega spring.
  • the leaf springs of the safety snap switch are fastened with their clamped ends in a metal strip which is firmly seated in the housing and is designed as a plug outside the housing.
  • the spring tongue 38 In order to set the lower switching point of the snap switch or its actuating force, at which, in the case of a vertically directed force on the spring tongue 38, the movable contact 32 jumps from the lower fixed contact 50 to the upper fixed contact 52, the spring tongue 38 has one in its front section for reasons of illustration, there is an opening which is not visible and through which an approximately cylindrical extension 58 of an insertion piece 60 projects, which has a larger diameter than the opening and which bears against the spring tongue 38 from below.
  • the insert 60 is in a helical spring which is supported at the other end on an adjusting screw 62 screwed into a corresponding thread in the base 4.
  • the spring tongue 38 carries a corresponding small insulator 89, for example in the form of a plastic rivet, in the region of the intended contact point with the leaf spring 74. If the pressure on the membrane 10 continues to rise, the spring tongue 38 and the leaf spring 74 are now simultaneously moved downward after the plastic rivet 89 abuts the leaf spring 74, the hook-shaped bent end of the leaf spring 74 reaching a position after a certain downward movement, in which, due to the action of the omega spring 78, the leaf spring 72 with the movable contact 80 arranged thereon is pressed upward against the fixed contact 84 located above it, so that a circuit is formed over the plug formed by the metal strip 76 and the plug formed by the metal strip 28 can close and in the device controlled by the switching device 1 triggers a safety circuit, for example switching on the pump motor.
  • a safety circuit for example switching on the pump motor.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Push-Button Switches (AREA)

Claims (6)

1. Dispositif de commutation électrique actionné par pression comprenant un boîtier (2) sur lequel est monté un couvercle (6), avec interposition d'une membrane (10) sollicitée par la pression, qui est ainsi serrée au niveau de son bord, et dans lequel est disposé au moins un commutateur à action brusque (20, 20b, 20c) dont le porte- contacts de commutation mobile est constitué par un ressort lame (34) s'étendant sensiblement parallèlement à la membrane (10) et fixé dans le boîtier (13), dans la surface duquel est découpée une languette (38) dont la racine se trouve sur le côté de la zone d'encastrement du ressort lame (34), et dont l'extrémité libre s'appuie par l'intermédiaire d'un ressort (44) sur l'extrémité du ressort lame (34) qui porte les contacts de commutation (32), cette languette (38) pouvant être éloignée de la membrane (10) par un élément presseur (18), selon un mouvement de commutation qui se déroule perpendiculairement à la membrane (10), de telle manière qu'elle mette les contacts de commutation (32) situés à l'extrémité du ressort lame (34), par l'intermédiaire du ressort (44), alternativement en contact avec l'un ou l'autre de deux contacts fixes (50, 52) disposés dans le boîtier (13) pour chaque commutateur à action brusque (20, 20b, 20c), au moins l'un des contacts fixes (52) étant réglable et en outre, un ressort additionnel (62) qui prend appui par une extrémité sur une vis (64) vissée dans le boîtier (13) étant disposé entre chaque languette (38) et le boîtier (13) pour le réglage du point de commutation de chaque commutateur à action brusque (20, 20b, 20c), caractérisé en ce que, dans la direction d'actionnement du ressort lame (34) d'au moins un commutateur à action brusque (20, 20b, 20c), entre la languette (38) de ce commutateur et le boîtier (2), est placé un commutateur de sécurité à action brusque (70), qui peut être actionné mécaniquement et directement par la languette (38) mais en restant isolé de celle-ci, ce commutateur possédant deux butées (82, 84) dont au moins l'une constitue un contact (84).
2. Dispositif de commutation selon la revendication 1, caractérisé en ce que le commutateur de sécurité à action brusque (70) comprend deux ressorts lames (72, 74), qui s'étendent sensiblement parallèlement l'un à l'autre, et dont chacun est encastré à une extrémité, l'un de ces ressorts étant recourbé à peu près en forme de crochet à son extrémité libre, et en ce qu'un ressort en oméga (78) est interposé entre l'extrémité en crochet de ce ressort lame (74) et l'extrémité libre de l'autre ressort lame (72) du commutateur de sécurité à action brusque (70).
3. Dispositif de commutation selon la revendication 2, caractérisé en ce que les ressorts lames (72, 74) sont fixés par leurs extrémités encastrées dans une lame métallique (76) qui est montée rigidement dans le boîtier (2) et forme une broche à l'extérieur du boîtier (2).
4. Dispositif de commutation selon la revendication 1, caractérisé en ce qu'au moins une des butées (82, 84) du commutateur de sécurité à action brusque (70) est réglable.
5. Dispositif de commutation selon la revendication 1, caractérisé en de que la languette (38) du ressort lame (34) du commutateur à action brusque (20) disposé au-dessus du commutateur de sécurité à action brusque (70) porte un rivet (89) en matière non conductrice de l'électricité dans la région de coopération avec le commutateur de sécurité à action brusque (70).
6. Dispositif de commutation selon la revendication 1, caractérisé en ce que l'un des contacts fixe (84) du commutateur de sécurité à action brusque (70) est relié électriquement au ressort lame (34) du commutateur à action brusque (20) situé au-dessus.
EP19820101035 1981-02-12 1982-02-12 Dispositif de commutation électrique actionné par pression Expired EP0058409B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8103768U 1981-02-12
DE19818103768 DE8103768U1 (de) 1981-02-12 1981-02-12 "Druckbetätigte elektrische Schaltvorrichtung"

Publications (3)

Publication Number Publication Date
EP0058409A2 EP0058409A2 (fr) 1982-08-25
EP0058409A3 EP0058409A3 (en) 1983-04-06
EP0058409B1 true EP0058409B1 (fr) 1985-09-11

Family

ID=6724562

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19820101035 Expired EP0058409B1 (fr) 1981-02-12 1982-02-12 Dispositif de commutation électrique actionné par pression

Country Status (4)

Country Link
EP (1) EP0058409B1 (fr)
AU (1) AU8043782A (fr)
DE (1) DE8103768U1 (fr)
ES (1) ES263186Y (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2677167B1 (fr) * 1991-05-29 1994-07-08 Dav Commutateur electrique, notamment pour la commande d'equipements et accessoires automobiles.
IT1258227B (it) * 1991-11-15 1996-02-21 Ma Ter Srl Pressostato con microinterruttore di sicurezza a riarmo manuale
IT1252296B (it) * 1991-11-15 1995-06-08 Ma Ter Srl Pressostato a sfioro, con microinterruttore di sicurezza a riarmo manuale
DE102004041403B3 (de) * 2004-08-26 2005-11-24 Elektromanufaktur Zangenstein Hanauer Gmbh & Co. Kgaa Baueinheitlich integrierte Druckschalter- und Druckerfassungsvorrichtung
JP7105742B2 (ja) * 2019-07-31 2022-07-25 株式会社鷺宮製作所 圧力スイッチ

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1543230A (fr) * 1900-01-01 Perfectionnements aux dispositifs de réglage thermique à sécurité incorporée
CH536547A (de) * 1971-01-12 1973-04-30 Danfoss As Elektrischer Schnappschalter
FR2184479B2 (fr) * 1972-05-18 1978-05-12 Europ Manufact Ring

Also Published As

Publication number Publication date
ES263186Y (es) 1984-03-01
AU8043782A (en) 1982-08-19
EP0058409A2 (fr) 1982-08-25
EP0058409A3 (en) 1983-04-06
ES263186U (es) 1982-07-16
DE8103768U1 (de) 1981-09-24

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