Temperature-dependent switch
AssigneeThermik Geraetebau GmbH
InventorTan Le Nguyen
Life of this patent
Estimating the term…
Abstract
In a temperature-dependent switch having a switching mechanism that has a movable contact part which cooperates with a stationary counter contact and is moved by a spring part to which the movable contact part is electrically conductively connected, the switching mechanism produces an electrically conductive connection between the stationary counter contact and a second counter contact in a temperature-dependent manner. The switch is provided with an arc-shielding plate, which has no mechanical function, is arranged on an upper surface of the spring part and covers sections thereof.
Claims23
A temperature-dependent switch provided with a stationary counter contact, a second counter contact, and a switching mechanism, said switching mechanism comprising a spring part and a movable contact part, said spring part having an upper surface facing said stationary counter contact, wherein said movable contact part is electrically conductively connected to said spring part, cooperates with said stationary counter contact and is moved by said spring part, the switching mechanism producing an electrically conductive connection between the stationary counter contact and said second counter contact in a temperature-dependent manner,
- the switching mechanism comprising further an arc-shielding plate having no mechanical function and being arranged on said upper surface of said spring part, said arc-shielding plate covering at least one area of said upper surface,
- wherein the arc-shielding plate comprises a closed annular region, said closed annular region covering said at least one area on said upper surface of said spring part, said at least one area being an annular area extending around the movable contact part, and
- wherein the arc-shielding plate comprises three strips extending in a star-shaped manner from the annular region.
A temperature-dependent switch provided with a stationary counter contact, a second counter contact, and a switching mechanism, said switching mechanism comprising a spring part and a movable contact part, said spring part having an upper surface facing said stationary counter contact, wherein said movable contact part is electrically conductively connected to said spring part, cooperates with said stationary counter contact and is moved by said spring part, the switching mechanism producing an electrically conductive connection between the stationary counter contact and said second counter contact in a temperature-dependent manner,
- the switching mechanism comprising further an arc-shielding plate that does not contribute to any mechanical switching function of said switch, said arc-shielding plate being arranged on said upper surface of said spring part and covering at least one area of said upper surface,
- wherein the spring part is a spring disc which presses the movable contact part towards the stationary counter contact, the switching mechanism further comprising a temperature-dependent snap disc which, in one geometric temperature position, lifts the movable contact part from the stationary counter contact and
- wherein the arc-shielding plate is permanently electrically conductively connected to the second counter contact.
Dependencies are inferred from the claim text.