CN2479643Y

CN2479643Y - External lead pin of tungsten-halogen lamp

Info

Publication number: CN2479643Y
Application number: CN 01242010
Authority: CN
Inventors: 洪为华; 符军
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-06-08
Filing date: 2001-06-08
Publication date: 2002-02-27
Anticipated expiration: 2011-06-08

Abstract

An external terminal pin of a tungsten halogen lamp comprises a glass lamp holder (1), a molybdenum sheet embedded in the glass lamp holder (2), and an external terminal pin electrically connected with the molybdenum sheet (3). The external terminal pin is characterized in that one end of the external terminal pin (3) is electrically connected with the molybdenum sheet and gets through the glass lamp holder, the part exposed out of the glass lamp holder extends downwards and then bends upwards, the lower portion forms into the shape of U, and the other end bending upwards is embedded in the glass lamp holder. The terminal pin of the utility model is firm in structure, not easy to deform in usage and easy to manufacture, and can guarantee the uniformity of the curvature degree of the terminal pin and improve the production efficiency.

Description

A kind of outside lead pin of tungsten halogen lamp

The utility model belongs to a kind of outside lead pin of tungsten halogen lamp.

Outside two terminal pins of common tungsten halogen lamp are the single straight clavate, have the terminal pin of tungsten halogen lamp outside to adopt structure shown in Figure 1 now: the terminal pin (3) that promptly exposes glass head (1) curves U-shaped, its termination that is bent upwards reclines in the groove (4) that narrow sidewall is provided with of bottom glass into, the terminal pin of this U-shaped structure (3) can insert in the flat socket, its weak point is because the termination that is bent upwards does not have firm support, easy deformation in use, and when the outside lead pin that exposes the glass head is carried out bending machining, no matter be manual or machining, all be difficult to guarantee the consistency of terminal pin crooked radian, process time-consuming.

The utility model aim to provide a kind of structure firmly, the outside lead pin of not yielding, the tungsten halogen lamp that is easy to process.

The technical scheme that realizes above-mentioned purpose is (referring to implementing illustration): the utility model comprises glass lamp holder (1), be embedded in the molybdenum sheet (2) in the glass lamp holder, the outside lead pin (3) that is electrically connected with molybdenum sheet, it is characterized in that: described outside lead pin (3) one ends are electrically connected with molybdenum sheet (2), pass the glass head then, the downward extension of part of exposing the glass head is bent upwards again, and U-shaped is formed at the bottom, and another termination that is bent upwards also embeds in the glass head.

The processing method of the utility model outside lead pin (3) is earlier wire to be struck out the flat that the bottom takes the shape of the letter U, again at least one end points in top is welded on the molybdenum sheet, use then pinch-sealing technology molybdenum sheet (2) and outside lead pin (3) both upper ends thereof clamp in glass head (1).

The outside lead pin two ends that the utility model bottom takes the shape of the letter U all embed in the glass head, so sound construction, not yielding in the use, and outside lead pin of the present utility model can strike out shape earlier, spot weld again and be packaged on the molybdenum sheet in the glass head, so be easy to process and can guarantee the consistency of terminal pin crooked radian, improved production efficiency.

Accompanying drawing and drawing reference numeral explanation:

Fig. 1, prior art tungsten halogen lamp outside lead leg structure schematic diagram

Fig. 2, the utility model embodiment tungsten halogen lamp outside lead leg structure schematic diagram

Fig. 3, the structural representation of the utility model embodiment in whole tungsten halogen lamp

1-glass lamp holder 2-molybdenum sheet 3-outside lead pin 4-groove 5-glass cell-shell 6-filament 7-filament frame

The embodiment explanation: outside lead pin 3 both upper ends thereof that this routine bottom takes the shape of the letter U are all put and are welded on the molybdenum sheet 2, can improve the fastness of clamp pre-structure like this, are easier to processing and guarantee product quality.

Claims

1, a kind of outside lead pin of tungsten halogen lamp, comprise glass lamp holder (1), be embedded in the molybdenum sheet (2) in the glass lamp holder, the outside lead pin (3) that is electrically connected with molybdenum sheet, it is characterized in that: described outside lead pin (3) one ends are electrically connected with molybdenum sheet (2), pass the glass head then, and the downward extension of part of exposing the glass head is bent upwards again, U-shaped is formed at the bottom, and another termination that is bent upwards also embeds in the glass head.

2, tungsten halogen lamp outside lead pin according to claim 1 is characterized in that: outside lead pin (3) both upper ends thereof that described bottom takes the shape of the letter U is all put and is welded on the molybdenum sheet (2).