Electric lamp
AssigneePatent-Treuhand-Gesellschaft fuer elektrische Gluehlampen mbH
InventorsGerhard Behr, Peter Helbig
Life of this patent
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Abstract
An electric lamp, in particular a motor vehicle auxiliary light lamp, and a method for producing such a lam. The base of the lamp comprises an annular metal part (5) or resilient design for holding the lamp vessel (1), and a plastic part (6) provided with at least one hollow contact pin (7, 8). A supply lead (3, 4) projecting from the lamp vessel (1) is threaded into the hollow contact pin (7, 8) and welded to the latter such that the metal part (5) is under mechanical stress. In this way, backlash-free plug-and-socket connections are produced between the lamp vessel (1) and the metal part (5) or between the metal part (5) and the plastic part (6).
Claims8
An electric lamp with a transparent lamp vessel (1) having at least one luminous element (2) enclosed in the lamp vessel (1), having supply leads (3, 4), projecting from the lamp vessel (1), for supplying energy to the at least one luminous element (2), and having a lamp base, the lamp base having an annular metal part (5) for holding the lamp vessel (1) and a plastic part (6) provided with electric terminals (7, 8), the electric terminals (7, 8) being connected in an electrically conducting fashion to one of the supply leads (3, 4) in each case, wherein
- the metal part (5) is of resilient design,
- the lamp vessel (1) forms a plug-and-socket connection with the base,
- at least one of the electric terminals (7, 8) is designed as a hollow contact pin, and
- one end of a supply lead (3, 4) extending through a passage in the base is arranged in the at least one hollow contact pin (7, 8), said hollow pin being trapped adjacent the base, the lead being connected under tension to this contact pin (7, 8).
An electric lamp with a transparent lamp vessel (1) having at least one luminous element (2) enclosed in the lamp vessel (1), having supply leads (3, 4), projecting from the lamp vessel (1), for supplying energy to the at least one luminous element (2), and having a lamp base, the lamp base having an annular metal part (5) for holding the lamp vessel (1) and a plastic part (6) provided with electric terminals (7, 8), the electric terminals (7, 8) being connected in an electrically conducting fashion to one of the supply leads (3, 4) in each case, wherein
- the metal part (5) is of resilient design,
- the lamp vessel (1) forms a plug-and-socket connection with the base,
- at least one of the electric terminals (7, 8)is designed as a hollow contact pin, and
- one end of a supply lead (3, 4) is arranged in the at least one hollow contact pin (7, 8) and connected to this contact pin (7, 8), and,
- wherein the metal part (5) has lugs (52), and the plastic part (6) has depressions (61) for holding the lugs (52).
A method for producing an electric lamp, the method comprising the following steps:
- providing a prefabricated lamp vessel (1) having at least one luminous element (2) arranged therein and supply leads (3, 4) projecting from the lamp vessel (1),
- providing a prefabricated, annular metal base part (6) of resilient design,
- wherein
- a prefabricated plastic part (6) provided with electric terminals (7, 8) is provided, at least one electric terminal (7, 8) being designed as a hollow contact pin,
- a plug-and-socket connection is produced between the lamp vessel (1) and the base such that the free end of a supply lead (3, 4) is threaded in the at least one hollow contact pin (7, 8), and
- pressure is exerted on the plug-and-socket connection or on the plug-and-socket connections such that the metal part (5) is under mechanical stress and during this time the free end of the supply lead (3, 4) is welded or soldered to the at least one hollow contact pin (7, 8).
An electric lamp with a transparent lamp vessel (1) having at least one luminous element (2) enclosed in the lamp vessel (1), having supply leads (3, 4), projecting from the lamp vessel (1), for supplying energy to the at least one luminous element (2), and having a lamp base, the lamp base having an annular metal part (5) for holding the lamp vessel (1) and a plastic part (6) provided with electric terminals (7, 8), the electric terminals (7, 8) being connected in an electrically conducting fashion to one of the supply leads (3, 4) in each case, wherein
- the metal part (5) is of resilient design,
- the lamp vessel (1) forms a plug-and-socket connection with the base,
- at least one of the electric terminals (7, 8) is designed as a hollow contact pin, and
- one end of a supply lead (3, 4) is arranged in the at least one hollow contact pin (7, 8) and connected to this contact pin (7, 8), and
- wherein the metal part (5) has guide webs (51) for the lamp vessel (5) and depth-control stops (53) of resilient design for the lamp vessel (5).
Dependencies are inferred from the claim text.