CN2569335Y

CN2569335Y - Cold cathode electronic energy saving lamp

Info

Publication number: CN2569335Y
Application number: CN 02254117
Authority: CN
Inventors: 葛世潮
Original assignee: 葛世潮
Current assignee: Hangzhou Kenai Lighting Technology Co. Ltd.
Priority date: 2002-09-09
Filing date: 2002-09-09
Publication date: 2003-08-27
Anticipated expiration: 2012-09-09

Abstract

The utility model relates to a cold cathode electronic energy saving lamp. The utility model comprises a lamp cap, an electronic ballast assembly, at least one cold cathode lamp tube, and a light transmission bulb shell, wherein, a plastic outer shell is arranged between the lamp cap and the light transmission bulb shell, and the plastic outer shell is connected with a plastic connecting piece; the electronic ballast assembly is arranged in the plastic outer shell and the lamp cap. The shape of the utility model is similar to the common lamp bulb with a tungsten filament for lighting, and the utility model has the function of adjustable light. Compared with the common lamp bulb with a tungsten filament for lighting, the utility model keeps the characteristic of reliable and convenient use, and also has the characteristics of high light efficiency, low temperature rise, adjustable light, long service life, etc.

Description

The cold cathode electronic energy-saving lamp

Technical field

The utility model relates to a kind of electronic energy-saving lamp that adopts cathode fluorescent tube as light emitting source, belong to a kind of lighting.

Background technology

Normally used thermal cathode fluorescent tube electronic energy-saving lamp, its major part are the combinations of a thermal cathode fluorescent tube and electric ballast.For thermal cathode fluorescent tube, in the use owing to there is the electrode loss of tungsten filament and electronic emission material at high temperature, so lack the useful life of lamp.Usually use the electronic energy-saving lamp of thermal cathode fluorescent tube, major part does not have dimming function; Part has the thermal cathode fluorescent tube electronic energy-saving lamp of dimming function, and when being in the dimming function use, its dimming scope is little, and ， Hui Shrink lacks its useful life simultaneously.

Summary of the invention

The purpose of this utility model is to provide a kind of cold cathode electronic energy-saving lamp with dimming function, it includes lamp holder, electronic ballast component, at least one cold cathode fluorescent lamp, printing opacity cell-shell, be provided with plastic casing between described lamp holder and the printing opacity cell-shell, and on plastic casing, being connected with plastic fastening, electronic ballast component is installed in the inner space of plastic casing and lamp holder.

Described fluorescent tube is fixed on the plastic fastening that is positioned at above the electronic ballast component, and described fluorescent tube is the spirality cathode fluorescent tube.

The circuit of electronic ballast component described in the utility model includes a bridge rectifier of being made up of four diodes; The one half-bridge high frequency power switching circuit of forming by transistor, magnetic ring coil, electric capacity and other peripheral component, and the high voltagehigh frequency circuit of forming by current-limiting inductance and high-tension transformer and directly be connected to cathode fluorescent tube.In the foregoing circuit, its input ac power is after bridge rectifier obtains pulsating direct current, do not use jumbo electrochemical capacitor filtering, be transformed into high-frequency ac and after boosting, export to fluorescent tube and high-frequency switch circuit is directly imported in pulsating direct current, do not use electrochemical capacitor filtering, can make line power factor height, good reliability, the Harmonic Interference of circuit of electronic ballast little.

Be connected to the low district of the pulsed dc voltage amplitude freewheeling circuit of being made up of resistor and transistor behind the described bridge rectifier, it makes the described electricity-saving lamp of this patent, can directly be used in the circuit of common type phase-controlled dimmer.

Be in series with the pulsating current of being made up of triode, resistance in the half-bridge high frequency power switching circuit behind the described bridge rectifier and impact the inhibition circuit, when electricity-saving lamp uses dimming function, make dimming effect steady, dimming scope is big.

In addition, in the electronic ballast component circuit, its high frequency exports the part of cold cathode fluorescent lamp to and is made up of separately current-limiting inductance and high-tension transformer two parts; This line electricity magnetic disturbance is little, good reliability, and have short-circuit protection function.

Description of drawings

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

Fig. 2 is the circuit theory diagrams of electronic ballast component of the present utility model.

Embodiment

Below in conjunction with accompanying drawing, further set forth operation principle of the present utility model and concrete enforcement.Fig. 1 is the utility model cold cathode electronic energy-saving lamp structural representation: shown in the figure, the utility model includes lamp holder 1, electronic ballast component 2, plastic casing 3, plastic fastening 4, spirality cold cathode fluorescent lamp 5, printing opacity cell-shell 6 etc.Lamp holder 1 uses mechanical system to fixedly connected with plastic casing 3.Plastic casing 3 is connected for frame mode with plastic fastening 4.Cold cathode fluorescent lamp 5, printing opacity cell-shell 6 and plastic fastening 4 use high temperature resistant aging-resistant adhesives to fixedly connected.

The shape of printing opacity cell-shell 6 described in the utility model has multiple choices according to general lighting tungsten lamp outside bulb shell style, as bulb type, and ball-shaped, mushroom-shaped, candle type etc.For obtaining various illuminating effect, processing such as cell-shell 6 can carry out frosted, whitewashes, milky white, decorative pattern and reflectance coating.

Electronic ballast component 2 described in the utility model has circuit board and electronic devices and components to assemble, and whole assembly is installed in the inner space of plastic casing 3 and lamp holder 1.

Fig. 2 is the circuit diagram of the utility model electronic ballast component, its operation principle is as follows: ac power input end 10,11, be in series with fuse 12 in its alternating current input power supplying circuit, convert Voltage pulsating direct-current supply to after the bridge rectifier rectification of AC power via four diodes, 14,15,16,17

compositions.By transistor

41,42, the magnet ring coil of wire 46, the half-bridge high frequency power switching circuit that

electric capacity

48,49 and other peripheral components the are formed Voltage pulsating direct-current supply after rectification converts the high-frequency ac current that frequency is 25--75KHZ to.This high-frequency alternating current is flowed through current-limiting inductance 54, high-tension transformer 53 output oudin's currents to light the cathode fluorescent tube 55 that joins with it.In the circuit, the winding 29 of high-tension transformer 53,

diode

28,27, electric capacity 26 is formed the low pressure accessory power supply, when the pulsating dc voltage of main power source enters the low district of amplitude, provides high-frequency switch circuit to keep work by accessory power supply.Freewheeling circuit when forming input ac power voltage and enter the low district of amplitude by

resistor

20,21,24,25 and

transistor

22,23 in the circuit.But when guaranteeing that cold cathode energy-saving lamp of the present utility model is used for common standard type phase-controlled dimmer, the light modulating device steady operation.In the circuit, the pulsating current that triode 31, resistance 30 are formed in the input pulsating direct current circuit impacts the inhibition circuit, when using phase-controlled dimmer work, during control device controllable silicon conducting in the dimmer, can suppress the rush of current of input current, make dimming function stable electric capacity in the

circuit

33,48,49.

List the canonical parameter of 9W cold cathode energy-saving lamp below:

120 millimeters of bulb length overalls

60 millimeters of bulb diameter

9 watts of bulb powers

Luminous flux＞400 lumens

The know-how that cold cathode electronic energy-saving lamp of the present utility model relates to is that the general personnel of this specialty are familiar with, and therefore as long as understand the characteristic of content of the present invention and electronic ballast component, can do various forms of conversion and replacement.

Claims

1, a kind of cold cathode electronic energy-saving lamp, it includes lamp holder, electronic ballast component, at least one cold cathode fluorescent lamp, printing opacity cell-shell, it is characterized in that being provided with plastic casing (3) between described lamp holder (1) and the printing opacity cell-shell (6), and on plastic casing (3), being connected with plastic fastening (4), electronic ballast component (2) is installed in the inner space of plastic casing (3) and lamp holder (1).

2, cold cathode electronic energy-saving lamp according to claim 1 is characterized in that described fluorescent tube (5) is fixed on the plastic fastening (4) that is positioned at above the electronic ballast component (2) described fluorescent tube (5)

Be the spirality cathode fluorescent tube.

3, cold cathode electronic energy-saving lamp according to claim 1 and 2 is characterized in that the circuit of described electronic ballast component (2), includes a bridge rectifier of being made up of four diodes; The one half-bridge high frequency power switching circuit of forming by transistor, magnetic ring coil, electric capacity and other peripheral component, and the high voltagehigh frequency circuit of forming by current-limiting inductance and high-tension transformer and directly be connected to cathode fluorescent tube.

4, cold cathode electronic energy-saving lamp according to claim 3 is characterized in that being connected to the low district of the pulsed dc voltage amplitude freewheeling circuit of being made up of resistor and transistor behind the described bridge rectifier.

5,, it is characterized in that being in series with in the half-bridge high frequency power switching circuit behind the described bridge rectifier pulsating current of forming by triode, resistance and impact and suppress circuit according to claim 3 or 4 described cold cathode electronic energy-saving lamps.