Method and structure for helically coiling left, left and right three-segment type energy-saving filament

Abstract

The present invention discloses a three-segment (left, left, right) helical coiling method and a structure of power saving filament, which comprises: a helical filament main body (1) composed of a core rod (2) and secondary wound filament body (3) around the core rod (2); the secondary wound filament body (3) comprises a molybdenum wire (4) and a primary wound filament body (5) around the molybdenum wire (4); the primary wound filament body (5) comprises a molybdenum wire (6) and a tungsten filament (7) wound around the molybdenum wire (6); the tungsten filament (7) is wound around the molybdenum wire (6) in left-handed direction; the primary wound filament body (5) is wound around the molybdenum wire (4) in left-handed direction; the secondary wound filament body (3) is wound on the core rod (2) in right-handed direction. The filament in the present invention is wound with a three-segment helical winding wound (left-handed, left-handed, right-handed); therefore, the filament will have little deformation, distortion, or misalignment, etc.; the percent of pass of the lamp product can be increased, rework can be reduced greatly, and therefore the production cost can be reduced significantly.

Description

technical field [0001] The invention relates to a filament winding method, and at the same time relates to a filament winding structure, in particular to a left, left and right three-stage spiral winding method and structure of an energy-saving filament. Background technique [0002] At present, the filaments of energy-saving lamps usually adopt a three-stage spiral winding method of left, left and left. The problem with this winding method is that the coil of the filament is easily twisted and combined after stretching, causing a short circuit of the filament, which seriously affects the qualified rate of the stretched filament, and because the filament of the winding requires a lot of manual repairs, the labor cost is high, and at the same time The electronic powder coated in the filament spiral is easy to be touched and falls off during repair, which directly affects the life of the lamp tube. Contents of the invention [0003] The technical problem to be solved by the...

AI Technical Summary

Problems solved by technology

The problem with this winding method is that the coils of the filament are easily twisted and twisted after stretching, resulting in a short circuit of the filament, which seriously affects the qualified rate of the stretched filament, and because the filament of the stretched loop requires a lot of manual repairs, the labor cost is high, and at the same time The electronic powder coated in the filament spiral is easy to be touched and falls off during repair, which directly affects the life of the lamp tube

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