DE3022878A1 - Magnet and ball acceleration operated switch - has ball released from magnet to strike conducting pad over comb contacts - Google Patents
Magnet and ball acceleration operated switch - has ball released from magnet to strike conducting pad over comb contactsInfo
- Publication number
- DE3022878A1 DE3022878A1 DE19803022878 DE3022878A DE3022878A1 DE 3022878 A1 DE3022878 A1 DE 3022878A1 DE 19803022878 DE19803022878 DE 19803022878 DE 3022878 A DE3022878 A DE 3022878A DE 3022878 A1 DE3022878 A1 DE 3022878A1
- Authority
- DE
- Germany
- Prior art keywords
- ball
- acceleration limit
- limit switch
- membrane
- magnet
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/14—Switches operated by change of acceleration, e.g. by shock or vibration, inertia switch
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
- H01H1/40—Contact mounted so that its contact-making surface is flush with adjoining insulation
- H01H1/403—Contacts forming part of a printed circuit
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/58—Electric connections to or between contacts; Terminals
- H01H1/5805—Connections to printed circuits
Landscapes
- Switches Operated By Changes In Physical Conditions (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
Description
Diese Aufgabe wird mit den im Anspruch genannten Mitteln gelöst.This object is achieved with the means mentioned in the claim.
Ein Ausführungsbeispiel der Erfindung wird anhand von Fig. 1 - 6 der Zeichnung erläutert.An embodiment of the invention is based on FIGS. 1-6 of the Drawing explained.
Fig. 1 zeigt einen Längsschnitt durch den Beschleunigungsgrenzwertschalter, Fig. 2 die eingebaute Leiterplatte, Fig. 3 die Membran, Fig. 4 - 6 verschiedene Montagearten des quaderförmigen Gehäuses.Fig. 1 shows a longitudinal section through the acceleration limit switch, Fig. 2 the built-in printed circuit board, Fig. 3 the membrane, Figs. 4-6 different Mounting methods of the cuboid housing.
In Fig. 1 ist mit 1 das vorzugsweise aus Kunststoff bestehende quaderförmige Gehäuse bezeichnet, in das Haltestife 2, 3 eingesetzt sind.In Fig. 1, 1 is preferably made of plastic cuboid Designated housing, are inserted into the holding pins 2, 3.
Im unteren Gehäuseteil ist ein Dauermagnet angeordnet, der von einem ferromagnetischen Rückschlußtopf 5 umgeben ist. Der magnetische Luftspalt 6 ist mit einem nicht magnetisierbaren Stoff ausgefüllt. Auf dem Magnetsystem 4, 5, 6 ruht eine ferromagnetische Kugel 7, die bis zu einem bestimmten Beschleunigungsgrenzwert magnetisch festgehalten wird. Die Kugel liegt in einem trichterförmigen Hohlraum 8, der oben durch eine Membran 9, eine Leiterplatte 10 und einen isolierenden Deckel 11 abgeschlossen ist. Der Deckel ist mit einem Kragen lla versehen, der gegen einen O-Ring 12 abdichtet. Mit 13 und 14 sind Kontaktstifte bezeichnet, die mit der Leiterplatte 10 verlötet sind.In the lower part of the housing, a permanent magnet is arranged, which is of a ferromagnetic yoke cup 5 is surrounded. The magnetic air gap 6 is filled with a non-magnetizable substance. On the magnet system 4, 5, 6 rests a ferromagnetic ball 7, which is up to a certain acceleration limit is held magnetically. The ball lies in a funnel-shaped cavity 8, the top by a membrane 9, a circuit board 10 and an insulating cover 11 is complete. The lid is provided with a collar 11a, which against a O-ring 12 seals. With 13 and 14 pins are referred to that with the circuit board 10 are soldered.
Die Membran 9 weist eine verstärkte Randzone 9a auf und ist im Mittelbereich mit einer Leitschicht 9b versehen. Dieser Leitschicht liegen die kammartigen Kontaktzonen 15, 16 gemäß Fig. 2 gegenüber, die mit den Stiften 13, 14 verlötet sind.The membrane 9 has a reinforced edge zone 9a and is in the central area provided with a conductive layer 9b. The comb-like contact zones lie on this conductive layer 15, 16 according to FIG. 2 opposite, which are soldered to the pins 13, 14.
Beim Abheben der Kugel von ihrem Haltemagneten prallt sie fliegend oder rollend gegen die Membran 9, so daß die Leitschicht 9b gegen die Kontaktelemente 15, 16 gepreßt wird und diese kurzzeitig sicher verbindet.When the ball is lifted off its holding magnet, it bounces off the ground or rolling against the membrane 9 so that the conductive layer 9b against the contact elements 15, 16 is pressed and this connects securely for a short time.
Die Leitschicht 9b kann eine aufgalvanisierte Metallschicht sein oder aus Graphit bestehen. Es kann auch ein sog. Leitgummi eingesetzt werden. Da die Kugel 7 selbst elektrisch nicht beansprucht wird, braucht sie keine Edelmetallbeschichtung aufzuweisen. Die Membran verteilt den Druck der Kugel elastisch, so daß auch bei ungünstigem Auftreffpunkt ein sicherer Kontakt hergestellt wird.The conductive layer 9b can be an electroplated metal layer or consist of graphite. A so-called conductive rubber can also be used. Since the Ball 7 itself is not electrically stressed, it does not need a noble metal coating to have. The membrane distributes the pressure of the ball elastically, so that also at a secure contact is established at an unfavorable point of impact.
In Fig. 3 ist ein Querschnitt durch die Membran 9 dargestellt, deren stärkere Randzone mit 9a und deren Leitschicht mit 9b bezeichnet ist.In Fig. 3 is a cross section through the membrane 9 is shown, whose the thicker edge zone is denoted by 9a and its conductive layer is denoted by 9b.
In Fig. 4 ist das quaderförmige Schaltergehäuse 1 über Kopf, also mit seinem Deckel 11 auf einer Leiterplatte 17 festgelötet. Die Kugel hängt dabei an ihrem Haltemagneten.In Fig. 4, the cuboid switch housing 1 is upside down, that is with its cover 11 firmly soldered to a circuit board 17. The ball is hanging on their holding magnet.
Fig. 5 zeigt normale stehende Montage, wobei die Stifte 2, 3 der Befestigung dienen, während der elektrische Anschluß über Drähte 18, 19 erfolgt.Fig. 5 shows normal standing assembly, with the pins 2, 3 of the attachment serve, while the electrical connection is made via wires 18, 19.
In Fig. 6 ist das Gehause 1 liegend montiert, wobei alle vier herausgeführten Stifte mit der Leiterplatte 17 verbunden sind.In Fig. 6, the housing 1 is mounted horizontally, with all four led out Pins are connected to the circuit board 17.
Je nach Einbaulage der Leiterplatte 17, die die weiteren Schaltungselemente enthält, wird man eine der drei Befestigungsarten anwenden, um die Hauptbeschleunigungsrichtung (in der Regel die Fahrzeuglängsachse) zu überwachen.Depending on the installation position of the circuit board 17, the other circuit elements one of the three types of fastening will be used to determine the main direction of acceleration (usually the longitudinal axis of the vehicle).
LeerseiteBlank page
Claims (4)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE8016137U DE8016137U1 (en) | 1980-06-19 | 1980-06-19 | Acceleration limit switch |
DE3022878A DE3022878C2 (en) | 1980-06-19 | 1980-06-19 | Acceleration limit switch |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE8016137U DE8016137U1 (en) | 1980-06-19 | 1980-06-19 | Acceleration limit switch |
DE3022878A DE3022878C2 (en) | 1980-06-19 | 1980-06-19 | Acceleration limit switch |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3022878A1 true DE3022878A1 (en) | 1982-01-07 |
DE3022878C2 DE3022878C2 (en) | 1984-08-09 |
Family
ID=25786077
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8016137U Expired DE8016137U1 (en) | 1980-06-19 | 1980-06-19 | Acceleration limit switch |
DE3022878A Expired DE3022878C2 (en) | 1980-06-19 | 1980-06-19 | Acceleration limit switch |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8016137U Expired DE8016137U1 (en) | 1980-06-19 | 1980-06-19 | Acceleration limit switch |
Country Status (1)
Country | Link |
---|---|
DE (2) | DE8016137U1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3313033C1 (en) * | 1983-04-12 | 1984-08-02 | Helba Elektronik-Baugruppen Gmbh & Co Kg, 5628 Heiligenhaus | Acceleration limit-value switch |
US4467153A (en) * | 1983-02-07 | 1984-08-21 | Litton Systems, Inc. | Shock and vibration sensitive switch |
EP0125493A1 (en) * | 1983-04-12 | 1984-11-21 | HELBA Elektronik-Baugruppen GmbH & Co. KG | Acceleration value limiting switch |
DE3347066A1 (en) * | 1983-12-24 | 1985-07-04 | Helba Elektronik-Baugruppen Gmbh & Co Kg, 5628 Heiligenhaus | Acceleration switch for use as a safety switch in motor vehicles |
EP0345722A2 (en) * | 1988-06-10 | 1989-12-13 | Gebr. Schmidt Fabrik Fur Feinmechanik | Acceleration detector |
US5142927A (en) * | 1989-11-23 | 1992-09-01 | Fiatgeotech-Tecnologie Per La Terra S.P.A. | Device for controlling a gear box of a vehicle, particularly an agricultural tractor |
EP0708467A1 (en) | 1994-09-26 | 1996-04-24 | Heino Burmester | Acceleration value limiting switch |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03140875A (en) * | 1989-10-26 | 1991-06-14 | Nippon Seiko Kk | Acceleration sensor |
-
1980
- 1980-06-19 DE DE8016137U patent/DE8016137U1/en not_active Expired
- 1980-06-19 DE DE3022878A patent/DE3022878C2/en not_active Expired
Non-Patent Citations (1)
Title |
---|
NICHTS-ERMITTELT * |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4467153A (en) * | 1983-02-07 | 1984-08-21 | Litton Systems, Inc. | Shock and vibration sensitive switch |
DE3313033C1 (en) * | 1983-04-12 | 1984-08-02 | Helba Elektronik-Baugruppen Gmbh & Co Kg, 5628 Heiligenhaus | Acceleration limit-value switch |
EP0125493A1 (en) * | 1983-04-12 | 1984-11-21 | HELBA Elektronik-Baugruppen GmbH & Co. KG | Acceleration value limiting switch |
DE3347066A1 (en) * | 1983-12-24 | 1985-07-04 | Helba Elektronik-Baugruppen Gmbh & Co Kg, 5628 Heiligenhaus | Acceleration switch for use as a safety switch in motor vehicles |
EP0345722A2 (en) * | 1988-06-10 | 1989-12-13 | Gebr. Schmidt Fabrik Fur Feinmechanik | Acceleration detector |
EP0345722A3 (en) * | 1988-06-10 | 1991-02-20 | Gebr. Schmidt Fabrik Fur Feinmechanik | Acceleration detector |
US5013909A (en) * | 1988-06-10 | 1991-05-07 | Gebr. Schmidt Fabrik Fuer Feinmechanik | Opto-electrical acceleration sensor having a mechanical tilting element |
US5142927A (en) * | 1989-11-23 | 1992-09-01 | Fiatgeotech-Tecnologie Per La Terra S.P.A. | Device for controlling a gear box of a vehicle, particularly an agricultural tractor |
EP0708467A1 (en) | 1994-09-26 | 1996-04-24 | Heino Burmester | Acceleration value limiting switch |
Also Published As
Publication number | Publication date |
---|---|
DE8016137U1 (en) | 1981-01-22 |
DE3022878C2 (en) | 1984-08-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: HELBAKO ELEKTRONIK-BAUGRUPPEN GMBH & CO KG, 5628 H |