DE29707097U1 - Buoyancy switch - Google Patents
Buoyancy switchInfo
- Publication number
- DE29707097U1 DE29707097U1 DE29707097U DE29707097U DE29707097U1 DE 29707097 U1 DE29707097 U1 DE 29707097U1 DE 29707097 U DE29707097 U DE 29707097U DE 29707097 U DE29707097 U DE 29707097U DE 29707097 U1 DE29707097 U1 DE 29707097U1
- Authority
- DE
- Germany
- Prior art keywords
- membrane
- buoyancy switch
- switch according
- liquid
- housing
- 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 - Lifetime
Links
- 239000012528 membrane Substances 0.000 claims description 25
- 239000007788 liquid Substances 0.000 claims description 12
- 230000001681 protective effect Effects 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 2
- 230000007423 decrease Effects 0.000 claims 1
- 230000001771 impaired effect Effects 0.000 claims 1
- 230000000630 rising effect Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 1
- COCAUCFPFHUGAA-MGNBDDOMSA-N n-[3-[(1s,7s)-5-amino-4-thia-6-azabicyclo[5.1.0]oct-5-en-7-yl]-4-fluorophenyl]-5-chloropyridine-2-carboxamide Chemical compound C=1C=C(F)C([C@@]23N=C(SCC[C@@H]2C3)N)=CC=1NC(=O)C1=CC=C(Cl)C=N1 COCAUCFPFHUGAA-MGNBDDOMSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/18—Switches operated by change of liquid level or of liquid density, e.g. float switch
Landscapes
- Switches Operated By Changes In Physical Conditions (AREA)
- Switches With Compound Operations (AREA)
- Push-Button Switches (AREA)
Description
AuftriebsschalterBuoyancy switch
Bei der Erfindung handelt es sich um ein Schaltelement, daß ähnlich wie ein Schwimmerventil auf das Ansteigen von Flüssigkeit reagiert.The invention is a switching element that reacts to the rise of liquid in a similar way to a float valve.
Das Schaltelement besteht aus einem Gehäuse in dem sich im unteren Bereich eine Membran befindet. Die Membran des Auftriebsschalters ist so dünn, daß sie, nachdem der Flüssigkeitsstand ihre Einbauhöhe nur gering überschritten hat, das Kontaktplättchen gegen die darüberliegenden Stromkontakte drückt und so einen elektrischen Stromkreis schließen kann. Das Gehäuse des Auftriebsschalters ist oberhalb der Membran so abgedichtet, daß keine Feuchtigkeit eindringen kann. Unterhalb der Membran setzt sich das Gehäuse in Form eines Schutzgitters fort, welches die dünne Membran vor Beschädigungen schützt. Auf der Membran ist ein dünnes Kontaktplättchen angebracht, welches bei Wölbung der Membran durch das Ansteigen von Flüssigkeit, gegen zwei darüberliegende Kontakte gedrückt wird.The switching element consists of a housing in which a membrane is located in the lower area. The membrane of the buoyancy switch is so thin that, after the liquid level has only slightly exceeded its installation height, it presses the contact plate against the power contacts above it and can thus close an electrical circuit. The housing of the buoyancy switch is sealed above the membrane so that no moisture can penetrate. Below the membrane, the housing continues in the form of a protective grid that protects the thin membrane from damage. A thin contact plate is attached to the membrane, which is pressed against two contacts above it when the membrane curves due to the rise in liquid.
An den Kontakten sind Stromkabel angeschlossen, die durch das Gehäuseoberteil nach außen geführt sind. Die Kabeldurchführung ist mit einer Abdichtung gegen das Eindringen von Feuchtigkeit in das Gehäuse versehen. Wenn der Auftriebsschalter einen Stromkreis bei Absinken des Flüssigkeitsstandes schließen soll, ist das Kontaktplättchen auf der Membran tellerförmig ausgebildet und der Rand des Kontaktplättchens befindet sich über den Kontakten an diePower cables are connected to the contacts and are routed through the top of the housing to the outside. The cable feedthrough is provided with a seal to prevent moisture from entering the housing. If the buoyancy switch is to close an electrical circuit when the liquid level drops, the contact plate on the membrane is plate-shaped and the edge of the contact plate is located above the contacts on the
die Stromkabel angeschlossen sind. Bei dieser Ausführung ist der Stromkreis solange unterbrochen bis der Flüssigkeitsstand unter die Höhe der Membran absinkt und sich die Wölbung der Membran reduziert.the power cables are connected. In this version, the circuit is interrupted until the liquid level falls below the height of the membrane and the curvature of the membrane is reduced.
Für den Auftriebsschalter ist eine spezielle Halterung vorgesehen, mit der er z.B. in Flüssigkeitsbehältern direkt an die Außenwandung oder an andere Punkte angebracht werden kann.A special bracket is provided for the buoyancy switch, with which it can be attached directly to the outer wall or other points in liquid containers, for example.
Die Verwendung des Auftriebsschalters hat gegenüber der Verwendung von Schwimmerventil oder Sensortechnik die Vorteile daß der Auftriebsschalter einen wesentlich geringeren Platzbedarf hat, recht günstig herzustellen und sehr betriebssicherThe use of the buoyancy switch has the advantages over the use of a float valve or sensor technology that the buoyancy switch requires significantly less space, is relatively inexpensive to manufacture and is very reliable in operation.
·· · ··· · ·
2 - SromkabelFig. 1.1- Cable entry
2 - Power cable
6 - Schutzgitter5 - Membrane with contact plate
6 - Protective grille
Fig. 2 - Ausführung mit einfachem Kontaktplättchen Fig. 3 - Ausführung mit tellerförmigem KontaktplättchenFig. 2 - Version with simple contact plate Fig. 3 - Version with plate-shaped contact plate
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29707097U DE29707097U1 (en) | 1997-04-19 | 1997-04-19 | Buoyancy switch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29707097U DE29707097U1 (en) | 1997-04-19 | 1997-04-19 | Buoyancy switch |
Publications (1)
Publication Number | Publication Date |
---|---|
DE29707097U1 true DE29707097U1 (en) | 1997-06-12 |
Family
ID=8039256
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE29707097U Expired - Lifetime DE29707097U1 (en) | 1997-04-19 | 1997-04-19 | Buoyancy switch |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE29707097U1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004075227A1 (en) * | 2003-02-18 | 2004-09-02 | Tennant Company | Float switch with protective boot |
-
1997
- 1997-04-19 DE DE29707097U patent/DE29707097U1/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004075227A1 (en) * | 2003-02-18 | 2004-09-02 | Tennant Company | Float switch with protective boot |
US6870110B2 (en) | 2003-02-18 | 2005-03-22 | Tennant Company | Float switch with protective boot |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R086 | Non-binding declaration of licensing interest | ||
R207 | Utility model specification |
Effective date: 19970724 |
|
R156 | Lapse of ip right after 3 years |
Effective date: 20010201 |