CN201706293U

CN201706293U - Cold cathode arc grille lamp

Info

Publication number: CN201706293U
Application number: CN2010202301053U
Authority: CN
Inventors: 李超; 周兆文
Original assignee: YICHANG JINSEN LIGHTING ELECTRONICS CO Ltd
Current assignee: Yichang Justsun Optoelectronic Technology Co., Ltd.
Priority date: 2010-06-18
Filing date: 2010-06-18
Publication date: 2011-01-12
Anticipated expiration: 2020-06-18

Abstract

A cold cathode arc grille lamp comprises a lamp base, wherein lamp stoppers are installed at two ends of the lamp base; an arc grille seals the lamp base through the lamp stoppers; a reflection plate is mounted inside the lamp base; at least one cold cathode fluorescent lamp tube is fixedly installed on the reflection plate; an inverter is mounted inside the lamp base; the at least one cold cathode fluorescent lamp tube is electrically connected with the inverter; the outer diameter of the at least one cold cathode fluorescent lamp tube ranges from 5.00 mm to 7.00 mm; the at least one cold cathode fluorescent lamp tube is a U-shaped lamp tube or I-shaped tube; and a control circuit of the inverter adopts an intelligent IC half bridge drive control chip. The cold cathode arc grille lamp applies the cold cathode arc grille lamp tube to provision of illumination in civil area, has stable light, low power consumption, color rendering properties and long service life, does not need to be frequently changed, is frequent switching resistant, highly reliable, convenient to maintain, low in cost, favorable for environment protection, and particularly suitable for illumination in public places of office, department store, bank and the like.

Description

Cold cathode arc grille lamp

Technical field

The utility model relates to a kind of lighting, especially a kind of cold cathode arc grille lamp that adopts cathode fluorescent tube as light source.

Background technology

At present, the caliber external diameter of common cathode fluorescent tube is no more than 4.0mm, its colour temperature height, and usually greater than 7000K, brightness height, but illumination is lower, and the lamp works electric current is less than 8mA, and effective power is low, and light efficiency is not high, mostly is 50lm/W greatly.One can only use high-end product scopes such as backlight, can not satisfy the requirement in domestic lighting field; The existing used fluorescent tube of civil area is that traditional T series fluorescent lamp (as T5 specification tube diameter 16mm, T8 specification tube diameter 25.4mm) adopts tungsten filament as electrode, need carry out preheating to filament during startup; Tungsten filament is in the condition of high temperature always in the course of work, and the fluorescent tube blackhead appears in volatile loss, repeatedly starts to accelerate export license, the service life of seriously reducing electrode; Tube diameter is big, and the dusting area is big, and manufacturer is for the consideration on the cost, and tube wall applies halide phosphor cheaply mostly, and the fluorescent tube light decay is fast, and luminous efficiency is low, and colour rendering is poor; It is big to fill the mercury amount in the pipe, and nearly 10mg pollutes environment.

Summary of the invention

Technical problem to be solved in the utility model provides a kind of cold cathode arc grille lamp, providing of civil area illumination is provided cathode fluorescent tube, the light that provides is stable, low in energy consumption, anti-frequent switch, colour rendering are good, long service life, good reliability does not need frequent replacing, cost easy to maintenance is low, and helps environmental protection.

For solving the problems of the technologies described above, the technical scheme that the utility model adopted is: a kind of cold cathode arc grille lamp, comprise Lamp base, the Lamp base two ends are equipped with light fixture retaining head, Arc grid is by light fixture retaining head sealing Lamp base, and Lamp base inside is equipped with reflector, and at least one cathode fluorescent tube is fixedly mounted on the reflector, Lamp base inside is equipped with inverter, and cathode fluorescent tube is electrically connected with inverter.

The external diameter of cathode fluorescent tube is 5.00mm～7.00mm.

Cathode fluorescent tube is U type fluorescent tube or I type fluorescent tube.

The control circuit of inverter adopts intelligent IC half-bridge driven control chip.

Inverter adopts single high pressure or the anti-phase output of two high pressure, and output voltage is not less than 400V rms.

The driving frequency of inverter is 45KHz～55KHz, and drive current is 20mA～40mA.

The cold cathode arc grille lamp that the utility model provides, beneficial effect is as follows: 1, existing conventional fluorescent fluorescent tube is replaced with cathode fluorescent tube, adopt inverter to drive under high frequency, no stroboscopic, scintillation have effectively been protected eyesight; Can start at normal temperatures, need not carry out preheating, toggle speed is fast, anti-frequent switch, the number of starts is greater than 1,000,000 times, and nearly 100% UV transfers visible light to, and light decay is little, no ultraviolet radiation, do not hinder eye, almost uniform illumination is provided, be fit to long-time illumination and use; Reach service life more than 50,000 hours.

The utility model is as shown in table 1 with the performance indications that T82 * the 20W arc grille lamp is compared with existing civil area: table 1 the utility model and existing civil area are with the every performance indications of T82 * 20W arc grille lamp relatively

Power consumption (W)

Luminous flux (lm)

Colour rendering index (Ra)

Service life (Hs)

Start-up time

Mercury content (mg)

T8 2 * 20W arc grille lamp

39～ 41

890～1000

75～80

8000

1 second

20mg

The utility model

24～ 25

1400～ 1500

80～85

≥50000

100 milliseconds

＜3.5mg

From last table, find out; of the present utility modelly improve more than 40% than T8 2 * 20W arc grille lamp light efficiency; colour rendering index is excellent, and start-up time is short, long service life; mercury content is very low in the fluorescent tube; meet international environmental protection RoHS standard, be convenient to recycling, can significantly reduce problem of environmental pollution; protected earth ecology, its every index all is better than T8 2 * 20W arc grille lamp.

2, the control chip of inverter adopts intelligent IC half-bridge driven control chip; the parameter that self adaptation ZVT (ZVS) mechanism that adopts the control circuit of this IC chip detects in the lamp works process changes; can turn-off output circuit according to detected abnormal condition of lamp tube situation, defencive function is strong, safe and reliable.

3, owing to adopt the cathode fluorescent tube of external diameter greater than 4.0mm, arc grille lamp with the cathode fluorescent tube of the existing employing external diameter same length that is 4.0mm is compared, can be higher bear causes damaged external force, and tube voltage reduces by 20% on year-on-year basis, and is safer; Power of lamp tube promotes more than 100%, and luminous flux promotes more than 100%, is suitable for the occasion of various illumination requirement, is particularly useful for public place illuminations such as office, market, bank.

Description of drawings

Below in conjunction with drawings and Examples patent is described further: Fig. 1 is a structural representation of the present utility model; Fig. 2 is the A-A cutaway view of the utility model Fig. 1; Fig. 3 is the schematic diagram of each parts of the utility model.

The specific embodiment

As depicted in figs. 1 and 2, the utility model comprises Lamp base 2, Lamp base 2 two ends are equipped with light fixture retaining 4,4 ', Arc grid 1 is by light fixture retaining 4, a 4 ' sealing Lamp base 2, reflector 7 is fixedly mounted on Lamp base 2 inside by pipe clamp 6, a U type cathode fluorescent tube 3 is fixed on the reflector 7 by pipe clamp 6, and inverter 5 is fixedly mounted on Lamp base 2 one ends, and the electrode of cathode fluorescent tube 3 is connected with the binding post of inverter 5.

The external diameter of cathode fluorescent tube 3 is 5.00mm～7.00mm, and length is 400mm～1500mm, is preferably external diameter 6.3mm (T2 specification), fluorescent tube length 550mm～1200mm.

Cathode fluorescent tube 3 also can be I type fluorescent tube.

The control circuit of inverter 5 adopts intelligent IC half-bridge driven control chip.

Inverter 5 adopts single high pressure or the anti-phase output of two high pressure, and output voltage is not less than 400V rms.

The driving frequency of inverter 5 is 45KHz～55KHz, and drive current is 20mA～40mA, and drive current is preferably 20mA-30mA.

Inverter 5 adopts intelligent IC half-bridge driven control chip; as model is the IC chip of FAN7711; the parameter that self adaptation ZVT (ZVS) mechanism that adopts the control circuit of this IC chip detects in the lamp works process changes; intelligence is regulated the parameter of drive circuit; and pass through ZVT (ZVS) or current wave crest ratio or big electric current I C overheated (as 150 ℃) mechanism and (for example: output open circuit detect abnormal condition of lamp tube; or fluorescent tube deexcitation; or single electrode lost efficacy; or moment fracture in the lamp works); turn-off output circuit, start abnormal protection described fluorescent tube.

Pipe clamp 6 is the plastics pipe clamp.

The schematic diagram of each parts of the utility model as shown in Figure 3, the assembling process of each parts is as follows: during assembling, at first reflector 7 is fixed on the Lamp base 2 by pipe clamp 6,3 pipe clamps 6 one rows be fixed on the reflector 7, and the end of pipe clamp 6 is fixed on the Lamp base 2 by nut after passing the perforate of the perforate of reflector 7 and Lamp base 2; A U type CCFL 3 is fixed on the pipe clamp 6.Inverter 5 is fixedly mounted on Lamp base 2 one ends, inverter 5 and U type CCFL 3 electrodes end together, and two binding posts of inverter 5 link to each other with two electrode tips of U type CCFL 3.Arc grid 1 cooperates with the arc side plate of Lamp base 2, and Arc grid 1 is by two light fixture retainings, 4, a 4 ' sealing Lamp base 2, thus fixing whole light fixture.

Claims

1. cold cathode arc grille lamp, comprise Lamp base (2), Lamp base (2) two ends are equipped with light fixture retaining head (4,4 '), Arc grid (1) is by light fixture retaining head (4,4 ') sealing Lamp base (2), Lamp base (2) inside is equipped with reflector (7), it is characterized in that: at least one cathode fluorescent tube (3) is fixedly mounted on the reflector (7), and Lamp base inside is equipped with inverter (5), and cathode fluorescent tube (3) is electrically connected with inverter (5).

2. cold cathode arc grille lamp according to claim 1 is characterized in that: the external diameter scope of cathode fluorescent tube (3) is 5.00mm～7.00mm.

3. cold cathode arc grille lamp according to claim 1 and 2 is characterized in that: cathode fluorescent tube (3) is U type fluorescent tube or I type fluorescent tube.

4. cold cathode arc grille lamp according to claim 1 and 2 is characterized in that: the control circuit of inverter (5) adopts intelligent IC half-bridge driven control chip.

5. cold cathode arc grille lamp according to claim 1 and 2 is characterized in that: inverter (5) adopts single high pressure or the anti-phase output of two high pressure, and output voltage is not less than 400V rms.

6. cold cathode arc grille lamp according to claim 1 and 2 is characterized in that: the driving frequency of inverter (5) is 45KHz～55KHz, and drive current is 20mA～40mA.