CN2182460Y - Four-junction type long-life lamp tube - Google Patents

Abstract

The utility model discloses a four-junction type durable lamp tube having long service life. According to the existing design principle of the lamp tube, the two external ends of the existing lamp tube are added by two spare wiring terminals extending into the lamp tube. The inner two ends of the lamp tube are respectively added by spare filaments of which the two ends are connected with the spare wiring terminals extending into the lamp tube, and the filaments are arranged in parallel with original filaments. Thereby, the lamp tube can not emit light when one group of filaments is burned out or the electronical emitting materials on the filaments are exhausted. The spare filaments can be started to make the lamp tube work continuously only if the lamp tube is taken off and installed again after the two wiring terminals connected with the spare filaments are inserted into the power supply holes.

Description

Four-junction type long-life lamp tube

The utility model relates to a kind of fluorescent tube---the four joint type long service life lamp tubes that a kind of useful life is very long.

At present, known fluorescent tube is made up of lamp holder, filament, glass bulb.As fluorescent tube, two insulation spacer inboards by two alloys outside cap fasten the glass-tube that a column, inwall scribble fluorescent material and be filled with an amount of argon gas and mercury, form an airtight space, at these glass-tube two ends, by fix two parallel wires posts by an insulation spacer, and stretch into one section (condensing into column by glass further fixes) an amount of in the pipe accordingly, and two binding posts of every end join with the two ends that are arranged on a filament at two ends in the pipe, and energising can be luminous.But, the useful life of fluorescent tube is desirable not enough, often be difficult to reach the useful life of specified 2000--5000 hour (power of lamp tube difference, life time is different), even reach, die of old age, analyze its reason, in scrapping fluorescent tube more than 80%, glass bulb and auxiliary member all can continue to use, and the exhausting of electronic emitting material on filament scaling loss or the filament then is fatal problem.

The purpose of this utility model provides a kind of according to existing fluorescent tube design principle, to existing fluorescent tube auxiliary member and the improved a little technology of internal structure, can reach the novel long service life lamp tube of prolonging lamp tube useful life (fluorescent tube after the improvement is 2 times of existing fluorescent tube useful life).

The purpose of this utility model be achieved in that (being example with the fluorescent tube) two insulation spacer inboards by two alloys outside cap fasten a column, inwall scribbles fluorescent material and is filled with the glass-tube of an amount of argon gas and mercury, form an airtight space, at these glass-tube two ends, by fix two parallel wires posts by an insulation spacer, and stretch into accordingly and manage interior an amount of one section (condensing into column by glass further fixes), every section two binding posts join with the two ends that are arranged on a filament at two ends in the pipe, in this lamp tube ends, each increases by two standby binding posts, and in the inlet tube, two ends in fluorescent tube, each increases a standby filament, two standby binding posts in the two ends of filament and the inlet tube join, and be parallel front and back and arrange that (wherein the binding post of one group of filament can suitably be grown with filament in the former pipe, to reduce the power on consumption of sub-emitting material of back filament of being heated of standby filament), can be luminous after the energising.Electronic emitting material exhausts on one group of filament scaling loss of working in this way or the filament, fluorescent tube is not luminous, as long as fluorescent tube is taken off, two binding posts that connect standby filament are inserted power hole, can start standby filament, making it to work on, (certain and supporting lamp base of fluorescent tube also needs become four by two original wiring hole increases, have a rectangular shape), fluorescent tube has just reached the purpose of longevity like this.

Owing to adopt such scheme, prolonged fluorescent tube useful life fully, only outside existing fluorescent tube, increased a winding terminal newly, in fluorescent tube, increased one group of standby filament newly, simple in structure.

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is a front view of the present utility model.

Fig. 2 is a left view of the present utility model.

Fig. 3 is the sectional arrangement drawing of the utility model embodiment.

Among the figure 1,3, the glass column 8 of standby binding post 2,4, main terminal 5, insulation spacer 6, the outer cap 7 of alloy, link post, main filament 9, standby filament 10, glass bulb 11, fluorescent material 12, an amount of mercury and argon gas.

In the embodiment shown in fig. 3, standby binding post (1), (3) join by the two ends that insulation spacer (5), the outer cap (6) of alloy and glass column (7) stretch in the glass bulb with standby filament (9), the two ends of main filament (8) and joining from main terminal (2), (4 of stretching into quadrat method in the glass bulb).(fluorescent tube right-hand member structure with a left side) like this, after energized, main filament (8) the electrons emitted accelerated motion under the high-tension effect of lamp tube ends of being heated, argon gas heat release simultaneously in the collision fluorescent tube, also be ionized after making the mercury evaporation in the pipe, send the light-emitting phosphor of strong ultraviolet ray excited inside pipe wall.Electronic emitting material on main filament (8) scaling loss or filament exhausts, and loses efficacy in main terminal (2), (4); At this moment, fluorescent tube is taken off, two the standby binding posts (1) that connect standby filament (9), (3) are inserted power hole and loaded onto again, can start standby filament (9), fluorescent tube is worked on.

Claims (3)

1, a kind of four joint type long service life lamp tubes, two insulation spacer inboards by two alloys outside cap fasten a column, inwall scribbles fluorescent material and is filled with the glass-tube of an amount of argon gas and mercury, form an airtight space, at these glass-tube two ends, by fix two parallel wires posts by an insulation spacer, and stretch into one section an amount of in the glass-tube accordingly, two binding posts of every end join with the two ends that are arranged on a filament at two ends in the pipe, it is characterized in that: two binding posts are respectively set up at the glass-tube two ends, and stretch into accordingly in the glass-tube, its top is connecting a standby filament that is arranged on two ends in the pipe.

2, four joint type long service life lamp tubes according to claim 1 is characterized in that: every end stretches into two filaments that four binding posts in the pipe connect, and one is main filament, and one is standby filament.

3, four joint type long service life lamp tubes according to claim 1 is characterized in that: be arranged in parallel before and after the filament in standby filament and the former pipe.