CN86203702U

CN86203702U - Durable fluorescent lamp tube

Info

Publication number: CN86203702U
Application number: CN 86203702
Authority: CN
Inventors: 徐子叨
Original assignee: Individual
Current assignee: Individual
Priority date: 1986-05-30
Filing date: 1986-05-30
Publication date: 1987-08-05

Abstract

The utility model relates to an improved durable fluorescent lamp tube. The theory of point discharge is utilized in the fluorescent lamp tube and the structures of the filament of the original fluorescent lamp tube are improved greatly. The service life of the lamp tube can be extended about 40 percent. The utility model has the advantages that trial-manufacture is easy; technology is not very changeable; the increase of cost is not very high; the effect of lifetime extension is obvious; people can understand the lamb tube easily. The user's economic burden can be decreased and using the utility model has very important meaning for expediting the speed of popularization, developing broad market, saving raw material and producing energy resource.

Description

Durable fluorescent lamp tube

The utility model belongs to low-voltage electrical apparatus, is a kind of lighting that has improved.

Fluorescent lamp photochromic and daytime daylight close, so be commonly called as " fluorescent lamp ", because of its unique luminescence mechanism with have a series of advantage and prevail in generation, but the first investment cost of fluorescent lamp is bigger, and only the price of fluorescent tube is just than high times of incandescent lamp bulb, therefore, be unfavorable for penetration and promotion.The average life span of incandescent lamp bulb is approximately 1000 hours, the average life span of fluorescent tube, be approximately 1000 to 3000 hours, if can be prolonging about 40 percent the useful life of fluorescent tube, this be to alleviating user's financial burden, and it is influential greatly improving the fluorescent lamp spreading speed.

The present fluorescent tube that uses, the major reason that its useful life is long is that the filament emitting material exhausts and filament breaking.Be connected on the fluorescent lamp in the alternating current circuit, after the Qi Ran, the two ends filament takes turns to serve as the work of negative electrode and anode, the emitting electrons that replaces each other constantly produces arc discharge in the exciter tube, under the bombardment of electron stream and cation, the filament emitting material consumes gradually, its cross section is more and more thin, and when starting current impacted the last time, filament just had been blown.At this moment can't repair and remedy.

The purpose of this utility model is exactly at above-mentioned background, provides a kind of and has improved, split-pole mariages Durable fluorescent lamp tube.

The utility model is a principle of utilizing point discharge, solve the filament emitting material emphatically and exhaust this principal contradiction, structure to existing fluorescent tube, carried out following several improvement: first enlarges the area of filament electrode, make it to lay in more emitting material, the second filament two ends respectively increase a split-pole T shape smaller screen, avoid electron stream and cation directly to bombard filament, the 3rd every end is established two masters, is paid filament, in case of need.

Concrete structure of the present utility model and effect are described in detail by following examples and accompanying drawing thereof:

Accompanying drawing 1 is the structural representation of the utility model filament.

The utility model is to realize like this, with reference to Fig. 1, filament inner guide wire (4) in lamp tube ends is gone up each a pressure welding metal T shape of usefulness split-pole smaller screen (3), T shape split-pole smaller screen protrudes than filament, and on the inner guide wire (4) of lamp tube ends stem stem, each uses two filaments of pin pressure welding of T shape split-pole smaller screen again, filament near T shape split-pole smaller screen is main filament (1), filament near stem stem is to pay a filament (2), after all welding, coats oxide together.According to the principle of point discharge, because T shape split-pole smaller screen slightly protrudes than main filament, can screen filament to keep out the direct bombardment of electron stream and cation, slowed down the too early consumption of filament self emitting material; Owing to increased T shape split-pole smaller screen, the filament enlarged areas can be laid in more oxide again; Owing to increased a pair filament, as soon as the main filament fracture, pair filament is just devoted oneself to work automatically again, further: fluorescent lamp opens the combustion process from filament pre-heating and emitting electrons, after the Qi Ran, filament loop no current effect, filament temperature is kept by E-communication.The split-pole smaller screen is nearer apart from filament, (being equivalent to electron tube heater-type negative electrode) is under the effect of electron stream, the very fast rising of temperature, possessed electron emission ability, from then on the split-pole smaller screen is just taken over filament work, and filament is left the leading post, and the consumption of filament emitting material reduces like this, can often be in good starting state, keep youthful vigor.Adopt above corrective measure, just relaxed the contradiction of filament premature ageing greatly, for Durable fluorescent lamp tube has been established material base.

The utility model has the advantages that: development work is simple, and cost increases very few, and process variations is little, and long-lived effect obviously easily for people understand, to saving raw material and producing the energy, is accelerated spreading speed, and opening up wide market also has very great meaning.

Claims

1, fluorescent tube of forming by fluorescent tube, filament, lamp holder, it is characterized in that on the inner guide wire [4] in the filament stem stem of fluorescent tube two ends, respectively be welded with a pair of minimum screen of T shape metal cap [3], also on the inner guide wire in lamp tube ends filament stem stem, near the bottom of the minimum screen of T shape metal cap [3], be welded with main filament [1] and pay [2] two filaments of filament.

2, fluorescent tube according to claim 1 is characterized in that being welded in the minimum screen of T shape metal cap (3) on the filament stem stem inner guide wire (4), should slightly protrude than filament, and scribble one deck oxide.

3, fluorescent tube according to claim 1, it is characterized in that on filament stem stem inner guide wire (4), two filaments of pin pressure welding with the minimum screen of T shape metal cap, filament near the minimum screen of T shape metal cap is main filament (1), filament near stem stem is a pair filament (2), and two pairs of filaments all scribble one deck oxide.