CN201374860Y

CN201374860Y - Lamp bulb shedding prevention device for electronic energy-saving lamp

Info

Publication number: CN201374860Y
Application number: CN200920024074U
Authority: CN
Inventors: 林利民; 刘建敏; 王志凯
Original assignee: HAOLIBEST LIGHTING CO Ltd
Current assignee: HAOLIBEST LIGHTING CO Ltd
Priority date: 2009-03-23
Filing date: 2009-03-23
Publication date: 2009-12-30
Anticipated expiration: 2019-03-23

Abstract

The utility model discloses a novel lamp bulb shedding prevention device for an electronic energy-saving lamp, which is characterized in that the power supply path for an integrating circuit is from the positive terminal of a power supply to a capacitor C5 through a resistor R7, a lamp filament T5-T6 of the lamp bulb, a diode D10 and a resistor R2. The novel lamp bulb shedding prevention device solves the problems that in case of false welding, poor contact and shedding of the lamp bulb, the prior electronic energy-saving lamp can still be triggered and started, resulting in waste of energy source and poor safety.

Description

The electronic energy-saving lamp preventing light tube protective device that comes off

One, technical field:

The utility model relates to a kind of electric energy-saving pipe preventing light tube protective device that comes off, and belongs to technical field of lamps.

Two, background technology:

Electronic energy-saving lamp circuit is directly to be powered to integration by positive source at present.Electronic energy-saving lamp is at fluorescent tube rosin joint, loose contact, when coming off, and lamp still triggers, starts, and causes energy waste, influence safe in utilization.

Three, summary of the invention:

The utility model overcomes the deficiency of above-mentioned prior art; a kind of novel electron electricity-saving lamp preventing light tube protective device that comes off is provided; mainly solved existing electronic energy-saving lamp at fluorescent tube rosin joint, loose contact, when coming off, energy waste that lamp still triggers, starts and problem safe in utilization.

In order to achieve the above object, the utility model adopts following technical scheme: a kind of electronic energy-saving lamp preventing light tube protective device that comes off, it is made up of shell and electronic circuit.Power circuit (1), integrating circuit (2), inverter circuit (3), load circuit (4) are formed whole electronics electronic circuit, it is characterized in that: in integrating circuit (2), a negative output terminal that is connected power circuit (1) behind the negative electrode of D10 series connection R2 and the C5, D10 anode series filament T5, T6 and connect C2, R7 in parallel after join with the positive output end of power circuit (1).

Compared with the prior art the utility model has following good effect: 1, solved existing electronic energy-saving lamp at fluorescent tube rosin joint, loose contact, when coming off, the energy waste that lamp still triggers, starts; 2, security performance is higher.

Four, description of drawings:

Fig. 1 is the utility model electrical schematic diagram.

Among the figure: 1-power circuit, 2-integrating circuit, 3-inverter circuit, 4-load circuit.

Five, embodiment:

Embodiment: with reference to Fig. 1, preferred forms of the present utility model is as follows:

In power circuit (1), in the input of power supply, one is passed through F, 2 inputs by the bridge rectifier of L1 and D1-D4 composition, the output of bridge rectifier C4 in parallel, an one output head anode connects an end of R1, C4, K1 collector electrode and C2, R7 parallel connection respectively, and its another negative pole of output end connects an end of the first polar curve circle of C5, R6, D9 anode and transformer B respectively; In integrating circuit (2), the end of R2 links to each other with filament T5 by the D10 of reversal connection, another termination filament T6 of C2, R7 in parallel; In inverter circuit (3), the K1 emitter links to each other with the K2 collector electrode by R5, the K1 base stage links to each other with the K2 collector electrode by the D5 of reversal connection, and link to each other with an end of the secondary coil of transformer B by R3, the other end of secondary coil links to each other with an end of K2 collector electrode and another secondary coil respectively, R1, the other end of C4 is connected with the K2 collector electrode, and link to each other with the end of bidirectional diode D by the D7 of reversal connection, the end of bidirectional diode D also links to each other with an end of the primary coil of transformer B by C5, another termination K2 base stage of D, the K2 base stage also links to each other with the sub-other end of the primary coil of B by R4 and the D9 by reversal connection links to each other with an end of the primary coil of B, the K2 emitter links to each other with an end of the primary coil of B by R6, and the other end of another secondary coil of B links to each other with the end of L2; In the load circuit (4), filament T4 links to each other with T5 by C3, and T3 links to each other with the other end of L2.

In the present embodiment, K1, K2 are 13003 type NPN type triodes, and D1-D4, D5, D7, D9, D10 are 1N4007 type diode, and D is a DB3 type bidirectional diode.

Claims

1, a kind of electronic energy-saving lamp preventing light tube protective device that comes off; it is made up of shell and electronic circuit; power circuit (1), integrating circuit (2), inverter circuit (3), load circuit (4) are formed whole electronics electronic circuit; it is characterized in that: in integrating circuit (2); a negative output terminal that is connected power circuit (1) behind the negative electrode of D10 series connection R2 and the C5, D10 anode series filament T5, T6 and connect C2, R7 in parallel after join with the positive output end of power circuit (1).