CN201739851U

CN201739851U - Energy-saving lamp

Info

Publication number: CN201739851U
Application number: CN2010202609933U
Authority: CN
Inventors: 张利强
Original assignee: NINGBO BAISHI ELECTRICAL APPLIANCE CO Ltd
Current assignee: NINGBO BAISHI ELECTRICAL APPLIANCE CO Ltd; NINGBO BAISHI ELECTRIC CO Ltd
Priority date: 2010-07-16
Filing date: 2010-07-16
Publication date: 2011-02-09
Anticipated expiration: 2020-07-16

Abstract

The utility model relates to a lighting device, in particular to an energy-saving lamp which comprises a power supply circuit, a fluorescent lamp tube and an electronic barretter circuit connected between the power supply circuit and the filament of the fluorescent lamp. The electronic barretter circuit comprises a bridge rectifier circuit, a half bridge circuit connected with the bridge rectifier circuit, and a high frequency oscillating circuit connected behind the half bridge circuit. By adopting a resistor in the high frequency oscillating circuit to replace the accelerating diode in a conventional energy-saving lamp, the utility model reduces the manufacturing cost of the energy-saving cost, thereby improving the market competitiveness of the energy-saving lamp and creating market advantage.

Description

A kind of electricity-saving lamp

Technical field

The utility model relates to a kind of lighting device, is specifically related to a kind of novel electricity-saving lamp.

Background technology

Progress, science and technology development along with society, people also pay close attention to energy-conserving and environment-protective all the more, therefore, common incandescent lamp is higher by luminous efficiency gradually, the lower various electricity-saving lamp of power consumption substitutes, but general 7 diodes that adopt of common energy-saving lamp on the market more, wherein 4 is commutation diode, 2 for quickening diode, and 1 for releasing diode, but adopt this kind line cost higher, existing market with the situation of low-cost, low price under the advantage deficiency, lack competitiveness.

The day for announcing is that the electricity-saving lamp that April 19, notification number in 2006 are CN2774068Y discloses such technical scheme: it comprises power circuit and circuit of electronic ballast, and circuit of electronic ballast comprises full-wave bridge rectifier circuit, half-bridge circuit, high frequency oscillation circuit, the fluorescent tube in parallel with full-wave rectifying circuit; Be connected with circuit of LED by switch on the power circuit, described circuit of LED comprises Zener diode, filter capacitor, the light emitting diode that is connected in parallel on the power circuit end.Though this electricity-saving lamp has prolonged service life, saved the energy, still there is shortcoming in this utility model, and the cost of this electricity-saving lamp is still higher, and circuit can further be optimized.

The utility model content

The utility model provides a kind of electricity-saving lamp, has reduced energy-conservation cost of manufacture, under the prerequisite that does not influence the every function of use of electricity-saving lamp, has solved effectively that the electricity-saving lamp cost is higher, the unconspicuous problem of market competition advantage.

At the problems referred to above, during the technical solution adopted in the utility model:

A kind of electricity-saving lamp, comprise power circuit, fluorescent tube and be connected on power circuit and fluorescent tube filament between circuit of electronic ballast, circuit of electronic ballast comprises bridge rectifier, the half-bridge circuit that links to each other with bridge rectifier and be connected on half-bridge circuit after high-frequency oscillating circuits, high-frequency oscillating circuits comprises first resistance, the charging circuit that second resistance and the 3rd capacitor are formed, also comprise by first triode and first base resistance thereof, first emitter resistance and second triode and second base resistance thereof, the tandem transistor circuit that second emitter resistance constitutes, first resistance, second resistance, the 3rd capacitor is connected back successively and is attached between first output line and second output line, second resistance, the series connection node of the 3rd capacitor and tandem transistor circuit connect that forward is connected to the 5th diode between the node, second resistance, be connected to diac between the series connection node of the 3rd capacitor and second diode, be connected to the 7th resistance between the negative pole of the base stage of first triode and the 5th diode, be connected to the 8th resistance between the base stage of second triode and second output line.

In old technology, between the base stage of triode and emitter stage, be provided with for quickening diode, thereby in the course of work of circuit of electronic ballast, for entire circuit provides a high speed leakage path.And the utility model is changing employing resistance replacement acceleration diode into, and this alternative still guarantees the various aspects of performance of electricity-saving lamp, and effective reduction of its realization electricity-saving lamp cost, and then improves the competitiveness of product in market.

For technique scheme, there am further optimization measure in we, as optimization, oppositely be connected to first coil of pulse transformer between the negative pole of first base resistance and the 5th diode, forward is connected to second coil of pulse transformer between second base resistance and second output line, the backward end of the tertiary coil of pulse transformer is connected on the node of first coil and the 5th diode, the in-phase end of tertiary coil is connected and is inserted a filament of fluorescent lamp behind the choke coil, and first transmission line is connected and inserted another root filament of fluorescent lamp behind the capacitance.

As optimization, be connected to take-off electric capacity and thermistor parallel with one another between two filaments of fluorescent lamp.The work that is arranged so that electricity-saving lamp of take-off electric capacity and thermistor is more stable, and when lamp hole temperature is too high electricity-saving lamp is realized protection.

As optimization, the Standard resistance range of the 7th resistance, the 8th resistance is 30 ohm to 100 ohm.Be controlled at resistance in this scope behind place in circuit, the current stabilization in the circuit and do not influence the normal use of components and parts in the circuit can guarantee the stable and performance of circuit, can not influence the overall work of electricity-saving lamp.

As optimization, be provided with fuse between power circuit and circuit of electronic ballast.

In terms of existing technologies, this practical advantage is: keeping under the prerequisite of basic circuit structure, in circuit of electronic ballast, adopt the acceleration diode in the alternative traditional energy-saving lamp of resistance, reduce the cost of manufacture of electricity-saving lamp, thereby strengthen the market competitiveness of electricity-saving lamp, set up the market advantage.

Description of drawings

Fig. 1 is the traditional circuit schematic diagram of electricity-saving lamp;

Fig. 2 is the circuit theory diagrams of electricity-saving lamp described in the utility model;

Wherein: FU, fuse; D1-D4, commutation diode; C1, filter capacitor; L1, I-shaped inductance; C2, electrochemical capacitor; T1-T2, triode; C3, charging capacitor; C4, hold stream electric capacity; DB3, diac; D5, the diode of releasing; D6-D7, acceleration diode; R1-R8, resistance; R9, thermistor; TK, pulse transformer; L3, choke coil; C5, capacitance; C6, take-off electric capacity.

The specific embodiment

Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.

The circuit theory diagrams of the utility model electricity-saving lamp as shown in Figure 2, electricity-saving lamp comprise power circuit, fluorescent tube and be connected on power circuit and fluorescent tube filament between circuit of electronic ballast, the high-frequency oscillating circuits after above-mentioned circuit of electronic ballast comprises bridge rectifier, the half-bridge circuit that links to each other with bridge rectifier and is connected on half-bridge circuit.

As shown in Figure 2, the power circuit of electricity-saving lamp inserts the bridge rectifier of being made up of diode D1, D2, D3, D4 through a fuse FU, the electric main that inserts is become the 310V direct current, the gained direct current is added in the half-bridge circuit two ends again, half-bridge circuit comprises the I-shaped inductance L 1 and the first capacitor C1, circuit is divided into two-way transmission line a, b by after the half-bridge circuit output, between two-way transmission line a, b and be connected with an electrochemical capacitor C2, is provided with high-frequency oscillating circuits between two transmission line a, b.High-frequency oscillating circuits comprises first resistance R 1, the charging circuit that second resistance R 2 and the 3rd capacitor C3 form, also comprise by the first triode T1 and the first base resistance R3 thereof, the first emitter resistance R5 and the second triode T2 and the second base resistance R4 thereof, the tandem transistor circuit that the second emitter resistance R6 constitutes, first resistance R 1, second resistance R 2, the 3rd capacitor C3 connects back successively and is attached between the first output line a and the second output line b, second resistance R 2, the series connection node of the 3rd capacitor C3 and tandem transistor circuit connect that forward is connected to the 5th diode between the node, second resistance R 2, be connected to diac DB3 between the series connection node of the 3rd capacitor C3 and the second diode T2, be connected between the negative pole of the base stage of the first triode T1 and the 5th diode D5 between the base stage of the 7th resistance R 7, the second triode T2 and the second output line b and be connected to the 8th resistance R 8.

Between the negative pole of first above-mentioned base resistance R3 and the 5th diode D5, oppositely be connected to the first coil L2-1 of pulse transformer TK, forward is connected to the second coil L2-2 of pulse transformer TK between the second base resistance R4 and the second output line b, the backward end of the tertiary coil L2-3 of pulse transformer TK is connected on the node of the first coil L2-1 and the 5th diode D5, the in-phase end of tertiary coil L2-3 is connected and is inserted a filament of fluorescent lamp behind the choke coil L3, and the first transmission line a connects and inserts another root filament of fluorescent lamp behind the capacitance C5.Be connected to take-off capacitor C 6 parallel with one another and thermistor R9 between two filaments between two filaments of fluorescent lamp.

Compare with electricity-saving lamp traditional circuit schematic diagram shown in Figure 1, the utility model adopts two resistance replacement, two acceleration diodes in the early time, and two resistances that adopt in the utility model are 50 ohm.

Civil power obtains 310V left and right sides DC voltage through after the bridge rectifier filtering, is added in the half-bridge circuit two ends, and after the dividing potential drop charging, the DB3 triggering and conducting makes the half-bridge inversion circuit starting of oscillation, and lamp tube ends produces high-frequency and high-voltage, makes the fluorescent tube ignition operation.Two resistance R 7-R8 play two effects of quickening diode in the traditional energy-saving lamp, give high speed leakage path of circuit.50 ohm resistance guarantees that circuit is stable, and the electricity-saving lamp briliancy is identical with traditional energy-saving lamp.

In the market, the price of diode is 0.035 yuan/, and the price of resistance is 0.0068 yuan/, every electricity-saving lamp is replaced two, the cost that every electricity-saving lamp can be saved is 0.0564 a yuan/root, can effectively reduce the production cost of electricity-saving lamp like this, help to improve the competitiveness of producer, thereby set up the market advantage.

Claims

1. electricity-saving lamp, comprise power circuit, fluorescent tube and be connected on power circuit and fluorescent tube filament between circuit of electronic ballast, it is characterized in that, described circuit of electronic ballast comprises bridge rectifier, the half-bridge circuit that links to each other with bridge rectifier and be connected on half-bridge circuit after high-frequency oscillating circuits, described high-frequency oscillating circuits comprises first resistance (R1), the charging circuit that second resistance (R2) and the 3rd capacitor (C3) are formed, also comprise by first triode (T1) and first base resistance (R3) thereof, first emitter resistance (R5) and second triode (T2) and second base resistance (R4) thereof, the tandem transistor circuit that second emitter resistance (R6) constitutes, described first resistance (R1), second resistance (R2), the 3rd capacitor (C3) is connected back successively and is attached between first output line (a) and second output line (b), second resistance (R2), the series connection node of the 3rd capacitor (C3) and described tandem transistor circuit connect that forward is connected to the 5th diode between the node, second resistance (R2), be connected to diac (DB3) between the series connection node of the 3rd capacitor (C3) and described second diode (T2), be connected to the 7th resistance (R7) between the negative pole of the base stage of described first triode (T1) and the 5th diode (D5), be connected to the 8th resistance (R8) between the base stage of described second triode (T2) and second output line (b).

2. a kind of electricity-saving lamp according to claim 1, it is characterized in that, oppositely be connected to first coil (L2-1) of pulse transformer (TK) between the negative pole of described first base resistance (R3) and the 5th diode (D5), forward is connected to second coil (L2-2) of pulse transformer (TK) between described second base resistance (R4) and second output line (b), the backward end of the tertiary coil (L2-3) of pulse transformer (TK) is connected on the node of first coil (L2-1) and the 5th diode (D5), a filament of fluorescent lamp is inserted in a connect choke coil (L3) back of the in-phase end of described tertiary coil (L2-3), and another root filament of fluorescent lamp is inserted in described first transmission line (a) series connection one capacitance (C5) back.

3. a kind of electricity-saving lamp according to claim 1 and 2 is characterized in that, is connected to take-off electric capacity (C6) parallel with one another and thermistor (R9) between two filaments of described fluorescent lamp.

4. a kind of electricity-saving lamp according to claim 1 is characterized in that, the Standard resistance range of described the 7th resistance (R7), the 8th resistance is 30 ohm to 100 ohm.

5. a kind of electricity-saving lamp according to claim 1 is characterized in that, is provided with fuse (FU) between described power circuit and circuit of electronic ballast.