CN201904305U

CN201904305U - Cable-type triple helical filament

Info

Publication number: CN201904305U
Application number: CN2010206719896U
Authority: CN
Inventors: 郭建明; 柳镇华; 茹海桥; 何陪强
Original assignee: HUZHOU TAIJIAN LIGHTING CO Ltd
Current assignee: HUZHOU TAIJIAN LIGHTING CO Ltd
Priority date: 2010-12-21
Filing date: 2010-12-21
Publication date: 2011-07-20
Anticipated expiration: 2020-12-21

Abstract

The utility model discloses a cable-type triple helical filament. The triple helical filament is characterized by comprising a structure formed by spirally winding a filament secondary winding body, the filament secondary winding body adopts a structure formed by spirally winding a filament primary winding body (3), and the filament primary winding body (3) adopts a structure formed by spirally winding two tungsten filaments (2) side by side. The cable-type triple helical filament has the advantages that: the filament phosphor powder storage capacity is increased, the temperature rises quickly after power-on, and the service life of the filament is prolonged.

Description

The cable type triple-coil filament

Technical field

The utility model relates to a kind of filament, the filament on particularly a kind of electricity-saving lamp.

Background technology

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.

At present, the filament of the power saving fluorescent lamp on the market mainly adopts monofilament triple helical or master-slave type three-helix structure filament.The former electronics powder of these two kinds of structures stores not too firm, and difficulty is decomposed in latter's exhaust, has improper meeting to cause decomposition not thorough slightly, and it is early stage yellow black to make that electricity-saving lamp occurs, and influences the useful life of fluorescent tube.

The utility model content

The purpose of this utility model is, a kind of cable type triple-coil filament is provided.Its electronics powder reserves are higher, and energising heats up very fast, and decompose easily, can prolong the useful life of filament.

The technical solution of the utility model: cable type triple-coil filament, it comprises by the filament secondary twines the body structure that forms of shape coiling in the shape of a spiral, it is that filament once twines the body structure of shape coiling in the shape of a spiral that the filament secondary twines body, and it is two tungsten filaments arranged side by side structures of shape coiling in the shape of a spiral that filament once twines body.

Compared with prior art, the utility model adopts two tungsten filaments arranged side by side to begin spiral, because two tungsten filaments arranged side by side can produce the slits that hold the electronics powder more, has therefore increased the ability of store electrons powder greatly, make electronics powder reserves higher and firm, cathode disintegration and activation is more prone to, and has shortened filament preheating time, and the filament energising starts faster, improved the bombardment resistance energy of filament, anti-bombardment ability is stronger, avoids the fluorescent tube phenomenon of turning black in early days, has prolonged the useful life of fluorescent tube.

Description of drawings

Fig. 1 is the structural representation that filament of the present utility model once twines body;

Fig. 2 is the structural representation that filament secondary of the present utility model twines body;

Fig. 3 is a filament outline drawing of the present utility model.

A molybdenum core of being labeled as in the accompanying drawing: 1-silk, the 2-tungsten filament, the 3-filament once twines body, 4-secondary molybdenum core silk.

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.The cable type triple-coil filament, as Fig. 1～shown in Figure 3, it comprises by the filament secondary twines the body structure that forms of shape coiling in the shape of a spiral, and it is that filament once twines body 3 structure of shape coiling in the shape of a spiral that the filament secondary twines body, and it is two tungsten filaments arranged side by side 2 structures of shape coiling in the shape of a spiral that filament once twines body 3.

Add man-hour, as Fig. 1～shown in Figure 3, on the common spiral filament forming machine with two tungsten filaments placed side by side 2 in the shape of a spiral shape be wound on molybdenum core silk 1, obtain filament and once twine body 3; To obtain filament then once twines body 3 and is being wound on the common spiral filament forming machine on the secondary molybdenum core silk 4, obtain the filament secondary and twine body, again the filament secondary is twined body 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, again a molybdenum core silk 1 on the filament, secondary molybdenum core silk 4 can be obtained cable type triple-coil filament of the present utility model after dissolving.

Claims

1. cable type triple-coil filament, it is characterized in that: it comprises by the filament secondary twines the body structure that forms of shape coiling in the shape of a spiral, it is that filament once twines body (3) structure of shape coiling in the shape of a spiral that the filament secondary twines body, and it is two tungsten filaments arranged side by side (2) structures of shape coiling in the shape of a spiral that filament once twines body (3).