CN2169923Y

CN2169923Y - Long life compact fluorescence lamp

Info

Publication number: CN2169923Y
Application number: CN93226284U
Authority: CN
Inventors: 张跃敏
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-09-04
Filing date: 1993-09-04
Publication date: 1994-06-22
Anticipated expiration: 2003-09-04

Abstract

The utility model relates to an electric illuminating lamp, particularly to a compact fluorescent lamp which has the advantage of long service life and has the function that foreign gas in a tube can be sucked. The utility model comprises a fluorescent lamp tube and a gas sucking tube. An inner core bar of which the outer surface is coated with a layer of non-evaporable getter with low temperature is arranged in the gas sucking tube. The problem that the foreign gas exists in the compact fluorescent lamp is solved. By simple process and low cost, the foreign gas in the lamp tube is sucked through the getter on the inner core bar, prolonging the service life of the fluorescent lamp.

Description

Long life compact fluorescence lamp

The utility model relates to the electric lighting lamp, particularly a kind of have inhale go to manage in the compact fluorescent lamp foreign gas effect, long service life.

Compact fluorescent lamps such as UH type of being sold on the market or SL type, in manufacture process, the air in the glass-tube is difficult to emptying.Its reason is: the condition restriction of 1 vacuum system makes bleeds not exclusively.The tail pipe of 2 glass-tubes, stem stem, metal parts adsorbed gas, especially compact fluorescent lamp without high-temperature degassing, can be brought more assorted gas in exhaust process.3 cathode disintegration and activations are incomplete, can discharge foreign gas when continuing to decompose in the burning-point process.4 mercury vapour itself have foreign gas.5 to charge into argon gas impure.The existence of aforesaid foreign gas in fluorescent tube makes the fluorescent lamp starting difficulty has consequently increased starting resistor greatly.The sputter of emitting material forms yellow black at negative electrode, influences light output, and makes the lost of life of negative electrode and fluorescent material.Because the compact fluorescent lamp volume is little, negative electrode is nearer apart from tube wall and seal location, uses getter to come the interior gaseous impurity of drain so can not resemble easily the conventional fluorescent lamps.

The purpose of the utility model is to provide a kind of can the suction to manage interior foreign gas, improves fluorescent tube useful life and easily manufactured compact fluorescent lamp.

The task that the utility model proposed realizes by following technical proposals: a kind of compact fluorescent lamp of long service life, comprise fluorescent tube, exhaust tube is provided with the interior plug that an appearance has applied one deck pasty state low temperature nonevaporable getter in described exhaust tube.

The purpose of the utility model is further finished by following technical proposals: be provided with an appearance in the described exhaust tube and applied one deck is is fully mixed and stirred the low temperature nonevaporable getter of mixing well into pasty state by powder-type zirconium-vanadium-iron (Zr-V-Fe) or zirconium-vanadium-iron-titanium (Zr-V-Fe-Ti) alloy and liquid adhesive interior plug.

Plug appearance in described, nearly main amalgam place, local coating one deck pasty state low temperature nonevaporable getter.

The utility model adopted be coated in getter on the plug in 25 ℃-400 ℃ scope, all gases is had assimilation effect preferably.And do not need to be evapotranspired, use very convenient.Be introduced in the fluorescent tube, can produce good inspiratory effects.Simultaneously, getter also has the effect of low-temp activation, has omitted negative electrode high frequency activation.It is low that the utility model also has a cost, the advantage that brings notable results.The about 5mg of the coating amount of each lamp adds adhesive, the not enough red cent of its material cost.Through contrast test, the light decay degree of compact fluorescent lamp that is provided with the interior plug of coating getter is approximately equal to original half.This is doubled with regard to the useful life that means fluorescent tube.

Below, the embodiment shown in conjunction with the accompanying drawings, the utility model will be further described.

Fig. 1 is the front schematic view of UH type fluorescent lamp.

Fig. 2 is the A portion amplification profile shown in Fig. 1.

In the present embodiment, owing to itself just be provided with to supporting the interior plug 3 of main amalgam 2 in the fluorescent tube 1, as long as before interior plug 3 is not packed blast pipe 4 as yet into, earlier zirconium-vanadium-ferroalloy and liquid adhesive are mixed and stirred the furnishing pasty state, the position of plug top layer, nearly main amalgam 2 in being applied to.Then, the interior plug 3 that will be coated with getter 5 is again inserted in the blast pipe 4, and blast pipe 4 is packed in the fluorescent tube 1.In exhaust process, because amalgam needs thermal insulation protection, so the low temperature nonevaporable getter 5 in being coated on the plug 3 is subjected to thermal insulation protection equally, so its structure can not be damaged.After exhaust finished, the interior plug 3 and the amalgam that scribble getter 5 were stayed in the blast pipe after blast pipe 4 sealings simultaneously.In the burning-point process, the getter 5 on the interior plug 3 can constantly absorb the foreign gas in the fluorescent tube, thereby reaches the purpose in the useful life of prolonging lamp tube.Shown in the figure 6 is auxilliary amalgam, and 7 is filament, and 8 is steam vent.

Claims

1, a kind of compact fluorescent lamp of long service life comprises fluorescent tube, and exhaust tube is characterized in that being provided with in the described exhaust tube the interior plug that an appearance has applied one deck pasty state low temperature nonevaporable getter.

2, the compact fluorescent lamp of long service life according to claim 1 is characterized in that being provided with in the described exhaust tube appearance and has applied one deck is is fully mixed and stirred the low temperature nonevaporable getter of mixing well into pasty state by powder-type zirconium-vanadium-iron (Zr-V-Fe) or zirconium-vanadium-iron-titanium (Zr-V-Fe-Ti) alloy and liquid adhesive interior plug.

3, the compact fluorescent lamp of long service life according to claim 1 and 2, it is characterized in that described in the appearance of plug, nearly main amalgam place, local coating one deck pasty state low temperature nonevaporable getter.