CN201739895U - Cold cathode desk lamp - Google Patents
Cold cathode desk lamp Download PDFInfo
- Publication number
- CN201739895U CN201739895U CN2010205026382U CN201020502638U CN201739895U CN 201739895 U CN201739895 U CN 201739895U CN 2010205026382 U CN2010205026382 U CN 2010205026382U CN 201020502638 U CN201020502638 U CN 201020502638U CN 201739895 U CN201739895 U CN 201739895U
- Authority
- CN
- China
- Prior art keywords
- lamp
- cold cathode
- desk lamp
- fluorescent tube
- ccfl
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S6/00—Lighting devices intended to be free-standing
- F21S6/002—Table lamps, e.g. for ambient lighting
- F21S6/003—Table lamps, e.g. for ambient lighting for task lighting, e.g. for reading or desk work, e.g. angle poise lamps
Abstract
A cold cathode desk lamp comprises a lamp holder, a lamp socket, a switch and a power line, wherein the lamp socket is provided with a rotation device, the lamp holder is connected to the lamp socket via the rotation device, and the lamp holder has a light source fixing plate provided therein. A cold cathode florescent lamp (CCFL) and an inverter are fixed on the light source fixing plate which has reflective material arranged thereon. The CCFL caliber is 2.4-8.0 mm, and the CCFL can be M-luminous tube, U-luminous tube, MU-luminous tube or straight luminous tube. The inverter employs intelligent IC semi-bridge driving control chip and the switch is a touch switch. The cold cathode desk lamp provided in the utility model gives off stable lights with excellent color rendering, and can endure frequent switching on and off. Having no stroboscopic and twinkle phenomenon, the desk lamp is beneficial for eyesight, and improves luminous efficiency. Moreover, the desk lamp has long service lifetime and is environmentally friendly.
Description
Technical field
The utility model relates to a kind of domestic lighting light fixture, particularly a kind of cold cathode desk lamp.
Background technology
The fluorescent tube that traditional desk lamp uses is mainly compact fluorescent lamp tube, adopts tungsten filament as electrode, has following shortcoming:
Need carry out pipeline start up by preheating to filament when 1, starting, toggle speed is slow, and stroboscopic is arranged;
2, tungsten filament is in the condition of high temperature always in the course of work, and the fluorescent tube blackhead appears in volatile loss; If frequent switch then
Can accelerate the fluorescent tube loss, seriously shorten the service life of fluorescent tube;
3, tube diameter is bigger, generally adopts the T5/T4 fluorescent tube, and the dusting area is big, and manufacturer is for the consideration on the cost, and tube wall applies halide phosphor cheaply mostly, and light decay is fast.Brightness obviously reduces after lighting a lamp 2000 hours, and luminous efficiency is low, generally only can reach 45lm/W, and colour rendering is poor, and colour rendering index does not reach the described 80Ra of nominal;
4, mercury (mercury) content is higher in the fluorescent tube, reaches about 10mg, and environment is polluted;
5, can not possess dimming function.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of cold cathode desk lamp, and light is stable, and anti-frequent switch, colour rendering are good, no stroboscopic, scintillation, and effectively vision protection has effectively improved light efficiency, long service life, and help environmental protection.
In order to solve the problems of the technologies described above, the technical solution of the utility model is: a kind of cold cathode desk lamp, comprise lamp holder, lamp socket, switch and power line, lamp socket is provided with tumbler, lamp holder links to each other with lamp socket by tumbler, be provided with the light source fixed head in the lamp holder, CCFL and inverter are fixed on the light source fixed head.
The light source fixed head is provided with reflectorized material.
The CCFL caliber is 2.4mm～8.0mm.
CCFL is M type fluorescent tube, U type fluorescent tube, MU type fluorescent tube or straight tube.
Inverter adopts intelligent IC half-bridge driven control chip.
Switch adopts soft-touch control.
The cold cathode desk lamp that the utility model provides, beneficial effect is as follows:
1, lamp socket is provided with tumbler, lamp holder can about and above-below direction rotate.
2, the attached reflectorized material of high reflecting rate on the light source stator, under equal luminous flux, illumination improves 30% to 40%, has reduced the loss of light source.
3, the control chip of inverter adopts intelligent IC half-bridge driven control chip; the parameter that the control circuit of this IC chip adopts self adaptation ZVT ZVS mechanism to detect 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.
4, adopt cathode fluorescent tube, inverter is by the high-frequency drive fluorescent tube, and no stroboscopic, scintillation have effectively been protected eyesight; In the time of can starting at normal temperatures, need not carry out preheating, toggle speed is fast, anti-frequent switch, and the number of starts is greater than 1,000,000 times;
Because adopt cathode fluorescent tube, nearly 100% UV transfers visible light to, light decay is little, and no ultraviolet radiation is not hindered eye, and almost uniform illumination is provided, and is fit to long-time illumination and uses; Reach service life more than 5～60,000 hours, every index of lamp all is improved under the situation that size reduces;
Because adopt cathode fluorescent tube, the fluorescent tube mercury content is low, meets international environmental protection RoHS standard, be convenient to recycling, can significantly reduce pollution problem, protected environment.
5, compare with traditional desk lamp, the utility model has used contact witch, more convenient operation; Has dimming function; Power consumption is little, and logical light quantity promotes greatly, and colour rendering is good, approaches color of sunshine.
6, fluorescent tube can adopt M type fluorescent tube, U type fluorescent tube, MU type fluorescent tube or straight tube, and good looking appearance satisfies various daylighting needs.
Description of drawings
Fig. 1 is the utility model structure drawing of device;
Fig. 2 is the utility model device lamp holder cut-away view.
The specific embodiment
A kind of cold cathode desk lamp, comprise lamp holder 1, lamp socket 3, switch 4 and power line 5, lamp socket 3 is provided with tumbler 2, and lamp holder 1 links to each other with lamp socket 3 by tumbler 2, be provided with light source fixed head 8 in the lamp holder 1, CCFL 6 and inverter 7 are fixed on the light source fixed head 8.
Described light source fixed head 8 is provided with reflectorized material.
Described CCFL 6 calibers are 2.4mm～8.0mm.
Described CCFL 6 is M type fluorescent tube, U type fluorescent tube, MU type fluorescent tube or straight tube.
Described inverter 7 adopts intelligent IC half-bridge driven control chip.
Described switch 4 adopts soft-touch control.
Embodiment:
As shown in Figure 1: the utility model device is by lamp holder 1, tumbler 2, and lamp socket 3, switch 4, power line 5 is formed.
As shown in Figure 2: lamp holder 1 is by lampshade 9, lamp holder lower cover 10, and lamp holder loam cake 11, cathode fluorescent tube 6, light source fixed head 8, inverter 7 is formed.
Lamp holder loam cake 11 is fixedlyed connected with screw by buckle with lamp holder lower cover 10, and light source fixed head 8 is fixed on lamp holder loam cake 11 inside by screw, and light source fixed head 8 surfaces are with the reflectorized material of high reflecting rate.Cathode fluorescent tube 6 and inverter 7 utilize deck to be fixed on the light source fixed head 8, lampshade 9 cathode fluorescent tube 6, light source fixed head 8 and the inverters 7 of having covered on lamp holder lower cover 10 fixed by snap.
Switch 4 adopts soft-touch control, and the soft-touch control of use can carry out light modulation to device.
Cathode fluorescent tube 6 is M type fluorescent tube, U type fluorescent tube, MU type fluorescent tube or straight tube, and wherein MU type fluorescent tube is bent into the U type with plane M type fluorescent tube again for earlier straight tube being bent into M type fluorescent tube.
The control chip of inverter 7 is an intelligent IC half-bridge driven control chip, as: FAN7711.The parameter that the control circuit of chip adopts self adaptation ZVT ZVS mechanism to detect in the lamp works process changes.The parameter of intelligent optimization drive circuit, and it is overheated to pass through ZVT ZVS or current wave crest ratio or big electric current I C, as: in the time of 150 ℃, turn-off output circuit, start abnormal protection cathode fluorescent tube 6;
The checkout gear operation irregularity, for example: output open circuit, or cathode fluorescent tube 6 un-activations or single electrode lost efficacy or cathode fluorescent tube 6 work in moment fracture etc.Turn-off output circuit, start abnormal protection cathode fluorescent tube 6.
Cathode fluorescent tube 6 light efficiencies more than 69lm/W, colour rendering index 85 Ra.
Claims (6)
1. cold cathode desk lamp, comprise lamp holder (1), lamp socket (3), switch (4) and power line (5), it is characterized in that: lamp socket (3) is provided with tumbler (2), lamp holder (1) links to each other with lamp socket (3) by tumbler (2), be provided with light source fixed head (8) in the lamp holder (1), CCFL (6) and inverter (7) are fixed on the light source fixed head (8).
2. a kind of cold cathode desk lamp according to claim 1 is characterized in that: light source fixed head (8) is provided with reflectorized material.
3. a kind of cold cathode desk lamp according to claim 1 is characterized in that: CCFL (6) caliber is 2.4mm～8.0mm.
4. a kind of cold cathode desk lamp according to claim 1 is characterized in that: CCFL (6) is M type fluorescent tube, U type fluorescent tube, MU type fluorescent tube or straight tube.
5. a kind of cold cathode desk lamp according to claim 1 is characterized in that: inverter (7) adopts intelligent IC half-bridge driven control chip.
6. a kind of cold cathode desk lamp according to claim 1 is characterized in that: switch (4) adopts soft-touch control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205026382U CN201739895U (en) | 2010-08-24 | 2010-08-24 | Cold cathode desk lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205026382U CN201739895U (en) | 2010-08-24 | 2010-08-24 | Cold cathode desk lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201739895U true CN201739895U (en) | 2011-02-09 |
Family
ID=43555171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205026382U Expired - Fee Related CN201739895U (en) | 2010-08-24 | 2010-08-24 | Cold cathode desk lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201739895U (en) |
-
2010
- 2010-08-24 CN CN2010205026382U patent/CN201739895U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110209 Termination date: 20140824 |
|
| EXPY | Termination of patent right or utility model |