CN201910400U - Monofilament triple helix heater - Google Patents

Abstract

The utility model discloses a monofilament triple helix heater, which comprise a helical filament helix main body (1). Both ends of the filament helix main body (1) are provided with filament pins (2). The monofilament triple helix heater is characterized in that the filament helix main body (1) is formed by helically winding a filament secondary winding body (3); the filament secondary winding body (3) comprises a filament primary winding body (4); and the filament primary winding body (4) is formed by helically winding a tungsten filament (5). The monofilament triple helix heater is capable of increasing the storage capacity of a cathode electronic powder, and adhesion is firmer; the storage capacity of the electronic powder is higher, thus, the electronic powder is easier to activate and the preheating time of a filament is shortened; the temperature rise time is shorter, thus, the service life of the monofilament triple helix heater can be greatly prolonged.

Description

The monofilament triple-coil filament

Technical field

The utility model relates to a kind of filament of electricity-saving lamp, particularly a kind of monofilament triple-coil filament that is used for the energy-conservation fluorescent lamp in tubule footpath.

Background technology

Power saving fluorescent lamp is present most important artificial light sources, extensively is used in the whole world.Especially in industry and commercial lighting field, the ideal that the diversity of its high-effect, good light output, color and long useful life make it to become in the above-mentioned lighting field is selected.The life-span of power saving fluorescent lamp is after the reason that defective workmanships such as having got rid of wick column bursts, gas leakage causes, concerning the power saving fluorescent lamp of technology compliant, its life-span is depended on because of mercury runs out of the fluorescent tube inefficacy that causes and launches thermionic cathode life, and wherein most important factor is exactly a cathode life.The life-span of power saving fluorescent lamp negative electrode depends primarily on the ability of the anti-ion bombardment of its filament and the ability of quick excitation electron, when filament can not heat up or heat up the electron deficiency that slowly causes cathode emission to light fluorescent lamp or when exhausting attached to the electronics powder on the filament, filament produces fracture of wire because of being subjected to ion bombardment, the life-span of the fluorescent lamp knot that promptly comes to an end.Therefore, how to strengthen the ability of the anti-ion bombardment of filament, improve the intensification usefulness of filament and the storage capacity of raising electronics powder and become the prolongation filament and the key in power saving fluorescent lamp life-span.

Filament generally comprises filament helical body and wire foot, and the burn-out life of power saving fluorescent lamp depends on the ability of filament stored electrons powder, and the storage capacity of electronics powder structure direct and filament filament helical body has relation.At present, the structure of filament helical body and size are generally more unreasonable, thus limited the storage area of electronics powder, thus influence the useful life of fluorescent tube.

The utility model content

The purpose of this utility model is, provides a kind of storage capacity of electronics powder big, the monofilament triple-coil filament of long service life.

For solving the problems of the technologies described above, the technical solution of the utility model is as follows: comprise spiral helicine filament helical body, the two ends of filament helical body are wire foot, described wire foot and filament helical body are made up of helical heater secondary winding body, filament secondary winding body once twines body by filament to be formed, and filament once twines body and formed by the coiling of a tungsten filament helix shape.

In the above-mentioned monofilament triple-coil filament, the length of described filament helical body is 8.5～10.5mm, and the length of wire foot is 3～4mm.

Compared with prior art, the utility model adopts a tungsten filament to carry out helically coiling three times, can increase the storage capacity of cathode electronics powder and adhere to more firm, electronics powder reserves are higher, be easier to the active electron powder, shortened filament preheating time, heating-up time is shorter, improves the bombardment resistance energy of filament greatly, and anti-bombardment ability is stronger, avoid turning black in early days phenomenon, the contact area of electronics powder when also having increased the filament heating power greatly is heated evenly fluorescent tube electronics powder in the exhaust decomposable process, and cathode activation is easier, energising starts faster, can significantly improve the useful life of fluorescent tube; Filament helical body length and wire foot length are the results through applicant's repetition test, comparison, screening, summary, have optimized the performance of many coiled filaments to the full extent.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the winding schematic diagram that filament of the present utility model once twines body;

Fig. 3 is the winding schematic diagram that filament secondary of the present utility model twines body.

Embodiment

Below in conjunction with drawings and Examples the utility model is further described, but not as the foundation to the utility model restriction.

Embodiment 1: the monofilament triple-coil filament, as shown in Figure 1, it comprises spiral helicine filament helical body 1, the two ends of filament helical body 1 are wire foot 2, described wire foot 2 and filament helical body 1 are made up of helical heater secondary winding body 3, filament secondary winding body 3 once twines body 4 by filament to be formed, and filament once twines body 4 and formed by the 5 helical form coilings of a tungsten filament; The length of filament helical body 1 is 8.5～10.5mm, and the length of wire foot 2 is 3～4mm.

Add man-hour, as Fig. 2～shown in Figure 3, on the common spiral filament forming machine with tungsten filament 5 in the shape of a spiral shape be wound on the first molybdenum core silk 6, obtain filament and once twine body 4; Then the filament that obtains once being twined body 4 is being wound on the common spiral filament forming machine on the second molybdenum core silk 7, obtain the filament secondary and twine body 3, again the filament secondary is twined body 3 carry out a thermal finalization handle the back on the spiral filament forming machine of loosing core in the shape of a spiral shape be wound on the plug, extract plug out, carry out secondary thermal finalization after length cuts in accordance with regulations and handle, can obtain the utility model after again the first molybdenum core silk 6 on the filament and the second molybdenum core silk 7 being dissolved.

Claims (2)

1. monofilament triple-coil filament, it comprises spiral helicine filament helical body (1), the two ends of filament helical body (1) are wire foot (2), it is characterized in that: filament helical body (1) by the filament secondary twine body (3) in the shape of a spiral the shape coiling form, filament secondary winding body (3) once twines body (4) by filament to be formed, and filament once twines body (4) and formed by a tungsten filament (5) helical form coiling.

2. monofilament triple-coil filament according to claim 1 is characterized in that: the length of described filament helical body (1) is 8.5～10.5mm, and the length of wire foot (2) is 3～4mm.

Images