Gas lighting device for electric household appliance, in particular a cooking range, having a quick connection system to the electrodes

Abstract

An electronic gas lighting device including: a cup-shaped casing, formed by an electrically insulating material; a plurality of high-voltage outputs carried by the casing and each including a chimney-like housing carried by the casing and also formed by an electrically insulating material and a first electric contact carried by the chimney-like housing and arranged therein; and a frame element integrally and protrudingly carrying, on a first face thereof intended in use to face towards the casing, a plurality of second contacts, in number equal to the high-voltage outputs present on the casing and adapted to couple with the first contacts within said chimney-like housings, and provided on a second face thereof, opposite to the first, with a plurality of electric wires each connecting a second contact with a spark generating electrode fastenable to a cooking range; snapping fastening means to the casing being peripherally arranged on the outside of the frame element, along at least one side of the same.

1 . An electronic gas lighting device for an electric household appliance, in particular a cooking range, of the type comprising: a cup-shaped casing, formed by an electrically insulating material; and a plurality of high-voltage outputs carried by the casing and each comprising a chimney-like housing carried by the casing and also formed by an electrically insulating material and a first electric contact carried by the chimney-like housing and arranged therein; characterised in that said device further comprises a frame element integrally and protrudingly carrying, on a first face thereof intended in use to face the casing, a plurality of second contacts, in number equal to the high-voltage outputs present on the casing and adapted to couple with the first contacts within said chimney-like housings; the frame element being further provided on a second face thereof, opposite to the first, with a plurality of electric wires each connecting a second contact with a spark generating electrode fastenable to the household appliance; and with snapping fastening means to the casing peripherally arranged on the outside of the frame element, along at least one side of the same. 
     
     
         2 . A device according to  claim 1 , characterised in that said chimney-like housings are arranged at least in part within said casing and so as to protrude, with the corresponding ends thereof, overhangingly through a mouth of the cup-shaped casing, but only to immediately over a peripheral edge of said mouth; said frame element being defined by a plate-shaped lid adapted to couple by resting on said open ends protruding from the mouth to close the same and essentially cover said mouth. 
     
     
         3 . A device according to  claim 1 , characterised in that each said chimney-like housing is provided with an open end for the reception of a corresponding second contact and internally carries therein a corresponding first contact mounted close to a bottom wall of the chimney-like housing, opposite to said open end, so as to remain away from the open end and well within the chimney-like housing. 
     
     
         4 . A device according to  claim 3 , characterised in that said frame element is integrally provided on said first face and for each second contact with a longeron-shaped guide element adapted to slidingly couple, for the entire length thereof, within a corresponding said chimney-like housing, through the open end of the same, to guide the second contact into electric coupling with the corresponding first contact arranged within the chimney-like housing. 
     
     
         5 . A device according to  claim 4 , characterised in that said frame element and said guide elements for the second contacts are formed in a single one-piece part by moulding an electrically insulating material; said second contacts being carried embedded at least in part within said guide elements. 
     
     
         6 . A device according to  claim 4 , characterised in that said snapping fastening means to the casing consist of a single elastic fin arranged on one side of the frame element, between a pair of said guide elements for the second contacts, overhangingly protruding from the frame element with respect to both said first and second face of the frame element, perpendicularly to the same and provided towards the casing with a fastening end adapted to snappingly couple with a corresponding peg integrally obtained on a side wall of the same. 
     
     
         7 . A device according to  claim 4 , characterised in that said first contacts are defined by corresponding first flat terminals carried just at the bottom walls of the chimney-like housings, parallelly to the same; said second contacts being defined by corresponding second flat terminals, of size either equal to or lower than that of the first flat terminals, directly carried at respective free ends of the longeron-shaped guide elements of the frame element, intended in use to face said bottom walls of the chimney-like housings. 
     
     
         8 . A device according to  claim 7 , characterised in that the frame element is provided with abutting means cooperating with the casing for positioning the second contacts at a predetermined distance from the first contacts, but facing the latter. 
     
     
         9 . A high-voltage output quick connection device in an electronic gas lighting device with corresponding spark generating electrodes fastenable onto an electric household appliance, characterised in that it comprises a frame element integrally and protrudingly carrying, on a first face thereof intended in use to face a casing of the gas lighting device, a plurality of contacts, in number equal to the high-voltage outputs present on the casing and on a second face thereof, opposite to the first, a plurality of electric wires each connecting in a pre-wired manner one of said contacts with one of said spark generating electrodes. 
     
     
         10 . A device according to  claim 9 , characterised in that said frame element is integrally provided, on said first face and for each said contact, with a longeron-shaped guide element adapted to slidingly couple, for its entire length, within a corresponding chimney-like housing of the casing of the gas lighting device defining a corresponding said high-voltage output; each contact being carried by a free end of a corresponding guide element, at least in part embedded within the same along with an end of said electric wire, opposite to the corresponding electrode, fastened and pre-wired to the contact. 
     
     
         11 . A device according to  claim 9 , characterised in that said frame element and said longeron-like guide elements are formed in a single one-piece part by moulding an electrically non-conducting material, preferably formed by a synthetic plastic material.