Temperature-dependent switch
AssigneeBehr-Thomson-Dehnstoffregler GmbH & Co.
InventorsRoland Saur, Manfred Kurz
Life of this patent
Estimating the term…
Abstract
A temperature-dependent switch is provided with a substance, which expands when heated in a housing, and a transmission part. The transmission part is displaceable by a diaphragm, a sealing part, accepting a beaded edge on the diaphragm with an annular groove is included. The integral housing serves to accept the substance which expands or contracts as a function of temperature, the sealing part, the diaphragm and the transmission part. A prong plate is fastened to housing for at least one electrical prong. The scaling part is provided with at least one recess to accept an insulating part. The transmission part is effectively connected with an electrical prong.
Claims29
In a temperature-dependent switch having a substance which expands when heated in a housing, a diaphragm positioned over the substance and a sealing part positioned over the diaphragm accepting a beaded edge on the diaphragm within an annular groove, the improvement wherein said housing is an integral housing, said substance (10) which expands or contracts as a function of temperature is positioned in a recess in said housing, said sealing part (4) and said diaphragm (5) also are positioned in said housing, and a transmission part (11 and/or 12), also positioned in said housing is coupled to said diaphragm, a prong plate (8) is fastened to said housing (1) for supporting at least one electrical prong, said sealing part (4) being provided with at least one recess (13), and an insulating part (14 and/or 15 and/or 16) positioned in said at least one recess, said transmission part (11 and/or 12) being effectively connected with said electrical prong.
Temperature-dependent switch, with a substance which expands when heated in a housing, a transmission part displaceable by means of a diaphragm, a sealing part accepting a bead on the diaphragm in an annular groove, whereby an integral housing serves to accept the substance which expands or contracts as a function of temperature, the sealing part, the diaphragm, and the transmission part, and a prong plate for at least one electrical prong is fastened to the housing, the sealing part is provided with at least one recess to accept an insulating part, and the transmission part is effectively connected with an electrical prong, characterized by at least one posistor switching element (242, 245), for one or more additional circuits.
A temperature dependent switch, comprising;
- a housing;
- an expandable means, inside said housing, for expanding when heated and contracting when cooled
- a diaphragm having a bead therein in contact with said expandable means;
- a sealing means, having an annular groove into which said bead of said diaphgram fits and also having a first opening therein, for pressing said diaphragm against said expandable means, said sealing means also having at least one recess therein at the end of said sealing means opposite from said diaphragm;
- a transmission means, movable inside the opening in said sealing means, for moving in response to the expansion of said expandable means;
- an insulating material, located in the recess in said sealing means;
- a prong plate, fastened to said housing, having at least one electrical prong therein, wherein said transmission means contacts said electrical prong when said expandable means is in a contracted state.
Dependencies are inferred from the claim text.