CN201904304U

CN201904304U - Double main filament main/auxiliary type triple helical filament

Info

Publication number: CN201904304U
Application number: CN2010206719542U
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 double main filament main/auxiliary 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 (4), and the filament primary winding body (4) comprises two main tungsten filaments (2) which are arranged side by side and an auxiliary tungsten filament (3) which is spirally wound on the main tungsten filaments (2). The double main filament main/auxiliary 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 double main thread master-slave type three-helix 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 electronics powder of the filament storage of this structure is insufficient, and it is slow to cause cathode activation difficulty, filament energising to start, and it is early stage yellow black to make that electricity-saving lamp occurs, and the useful life of fluorescent tube is undesirable.

The utility model content

The purpose of this utility model is, a kind of double main thread master-slave type three-helix filament is provided.Its electronics powder reserves are higher, and energising heats up very fast, can prolong the useful life of filament.

The technical solution of the utility model: double main thread master-slave type three-helix 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 the body structure of shape coiling in the shape of a spiral that the filament secondary twines body, filament once twine body comprise two side by side main tungsten filament and in the shape of a spiral shape be wound on auxilliary tungsten filament on the main tungsten filament.

Compared with prior art, the utility model adopts the helical structure of the main and auxiliary type of two main tungsten filaments, increased the ability of filament store electrons powder greatly, made electronics powder reserves higher, cathode activation is more prone to, shortened filament preheating time, the filament energising starts faster, has improved the bombardment resistance energy of filament, and anti-bombardment ability is stronger, avoid the filament phenomenon of turning black in early days, prolonged the useful life of filament.

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, 2-master's tungsten filament, 3-assists tungsten filament, and the 4-filament once twines body, 5-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 double main thread master-slave type three-helix 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, it is that filament once twines body 4 structure of shape coiling in the shape of a spiral that the filament secondary twines body, filament once twine body 4 comprise two side by side main tungsten filament 2 and in the shape of a spiral shape be wound on auxilliary tungsten filament 3 on the main tungsten filament 2.

Add man-hour, as Fig. 1～shown in Figure 3, will assist on the common spiral filament forming machine tungsten filament 3 in the shape of a spiral shape be wound on molybdenum core silk 1 and the two main tungsten filaments 2, obtain filament and once twine body 4; To obtain filament then once twines body 4 and is being wound on the common spiral filament forming machine on the secondary molybdenum core silk 5, 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 5 can be obtained double main thread master-slave type three-helix filament of the present utility model after dissolving.

Claims

1. double main thread master-slave type three-helix 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 (4) structure of shape coiling in the shape of a spiral that the filament secondary twines body, filament once twine body (4) comprise two side by side main tungsten filament (2) and in the shape of a spiral shape be wound on auxilliary tungsten filament (3) on the main tungsten filament (2).