Helical energy-saving lamp and production method

Abstract

The invention relates to a spiral type energy saving lamp and a manufacture method thereof. The structure of the energy saving lamp are as follows: an electric rectifier is arranged in a base; the base is fixedly connected with a lamp cap; the electric rectifier is connected with the two electrodes of a lamp cap; a spiral lamp tube is connected with the base by a connection piece; the two ends in the spiral lamp tube are all respectively provided with a filament; the filaments are connected with the electric rectifier by down-lead; beadings are sheathed and connected on the down-lead; the filaments are arranged along the coaxial direction of the spiral lamp tube. The manufacture method includes the steps of manufacturing the spiral lamp tube by bending, sealing and jointing a thin glass tube, spraying fluorescent powder, carrying out baking on the spiral lamp tube, manufacturing a lampwick, sealing and connecting the lampwick into the spiral lamp tube, carrying out vacuumizing on the spiral lamp tube, burning out the thin glass tube and assembling, etc. As the filaments of the invention are longer and thicker, the amount of the fluorescent powder stored by the filaments are increased and can not be too thick; besides, the layer of the fluorescent powder is uniform; therefore, the optical attenuation is less and the shining efficacy is high, thus improving the quality to bake the tube, thereby increasing the service life of the lamp tube to be more than 2 times.

Description

technical field [0001] The invention relates to an energy-saving lamp and a manufacturing method, in particular to a spiral energy-saving lamp and a manufacturing method. Background technique [0002] In the existing spiral energy-saving lamps, the filament is arranged along the radial direction of the lamp tube. Due to the limitation of the diameter of the lamp tube, the filament can only be made short and thin (see figure 1 ), because the filament is thinner, so the life-span of the lamp is just short; In the manufacturing method, the fluorescent powder coating mode of existing technology is to directly spray from one end of the spiral lamp tube (see figure 2 ), so the powder coating quality at the far end of the lamp tube cannot be guaranteed, and the light effect is unstable, which affects the quality of the entire lamp tube. Contents of the invention [0003] The purpose of the present invention is to overcome the defects of short service life and poor powder coatin...

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Problems solved by technology

[0003] The object of the present invention is to overcome the defects of short service life and poor powder coating quality of the existing spiral energy-saving lamps, and to invent a spiral energy-saving lamp and a manufacturing method with longer and thicker filaments, uniform powder coating and sufficient powder coating amount.

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