Base for a lamp
A base for a lamp, in particular a high-pressure discharge lamp, has an accommodating area for electronic components of the lamp and a chamber for the purpose of accommodating at least one further electronic component, for example a transformer, an electrical contact element being arranged in the base and connecting a voltage output of the transformer to a power supply line of the lamp via a connecting region. The connecting region is electrically insulated from the accommodating area of the base by a contact cover.
1 . A base for a lamp, in particular a high-pressure discharge lamp, having an accommodating area for electronic components of the lamp and having a chamber for the purpose of accommodating at least one further electronic component, for example a transformer, an electrical contact element being arranged in the base and connecting a voltage output of the transformer to a power supply line of the lamp ( 2 ) via a connecting region, wherein the connecting region is electrically insulated from the accommodating area of the base by means of a contact cover.
2 . The base as claimed in claim 1 , the contact cover being made from an electrically insulating material, preferably a plastic.
3 . The base as claimed in claim 1 , the contact cover having an essentially circular cross section.
4 . The base as claimed in claim 1 , the contact cover being a covering disk which is inserted at least in sections into a receptacle of the base.
5 . The base as claimed in claim 4 , the contact cover having a stepped design.
6 . The base as claimed in claim 1 , the contact cover having a thickness (t 1 , t 2 ) in the range of from approximately 1 to 3 mm, preferably of 1.6 mm.
7 . The base as claimed in claim 1 , the contact cover being connected to the base by means of welding, preferably by means of ultrasound welding.
8 . The base as claimed in claim 1 , the contact cover being connected to the base by means of a connecting compound.
9 . The base as claimed in claim 8 , the connecting compound being an adhesive, in particular a single-component adhesive or a multicomponent adhesive.
10 . The base as claimed in claim 9 , the adhesive having an epoxy, urethane, cyanoacrylate or silicone basis.
11 . The base as claimed in claim 7 , the contact cover and the base forming a common surface after welding or adhesive bonding.
12 . The base as claimed in claim 1 , the connecting region being embedded at least in sections in an electrically insulating casting compound, in particular silicone.
13 . The lamp having a base as claimed in claim 1 .
14 . A method for producing a lamp, having a base, in particular as claimed in claim 1 , an electrical contact element being arranged in the base and connecting a voltage output of a transformer to a power supply line of the lamp via a connecting region, having the following steps:
a) inserting the lamp into the base,
b) connecting the contact element to the power supply line of the lamp, and
c) inserting and fixing a contact cover made from an electrically insulating material, in particular plastic, in a receptacle of the base.
15 . The method for producing a lamp as claimed in claim 14 , the connecting region) being embedded in an electrically insulating casting compound before the contact cover is inserted.
16 . The method for producing a lamp as claimed in claim 14 , the contact cover being welded to the base after or during its insertion into the base.
17 . The method for producing a lamp as claimed in claim 14 , a connecting compound, in particular an adhesive, being introduced into the connecting region before the contact cover is inserted.