CN207421838U - A kind of LED energy-saving fluorescent lamps - Google Patents

Abstract

The utility model is related to a kind of LED illumination device technical fields, are related specifically to a kind of LED energy-saving fluorescent lamps；Including the first high-frequency rectification bridge, the second high-frequency rectification bridge, the first inductor, the second inductor, phase-shifting chopped waves circuit and LED light group；Two ac input ends of the first high-frequency rectification bridge are connected respectively with after the first inductor, the series connection of the second inductor with two lamp bases of fluorescent tube one end, and the ac input end of the second high-frequency rectification bridge is connected with two lamp bases of the fluorescent tube other end；Wherein, with phase-shifting chopped waves circuit connected in series after the first high-frequency rectification bridge is in parallel with the DC output end of the second high-frequency rectification bridge, then it is connected with LED light group.The technical program can adapt to all types of fluorescent lighting fixtures of each voltage class in various countries, as long as directly replacing fluorescent tube, wiring drastically increases the reducing energy consumption efficiency of fluorescent lighting fixture without any change, improvement cost is reduced, the reducing energy consumption enthusiasm of user can also be substantially improved.

Description

A kind of LED energy-saving fluorescent lamps

Technical field

The utility model is related to a kind of LED illumination device technical fields, are related specifically to a kind of LED energy-saving fluorescent lamps.

Background technology

The growing energy consumption for making lighting area of LED lighting technology is greatly reduced, however for largely Existing lamps and lanterns, we are intended to LED light source can be compatible with existing lamps and lanterns to greatest extent, as long as small to be done to existing lamps and lanterns Amplitude changes or just can be mounted directly corresponding LED light source without change, reaches and realizes that LED shines under conditions of economy as far as possible Bright effect.The LED fluorescent lamp pipe of the prior art although contour structures are consistent with conventional fluorescent fluorescent tube, can be replaced more easily Traditional tube is changed, the wiring yet with conventional fluorescent fluorescent tube needs four, and also inductance or electric ballast, replaces therefore LED lamp tube must also change lamp interior wiring, and LED lamp tube normal operation can just be made by removing ballast, this causes reducing energy consumption Efficiency be greatly lowered, especially under conditions of developed country's human cost is higher, reducing energy consumption spend it is high, therefore, it is necessary to Research and development possess the New LED fluorescent tube directly replaced existing fluorescent tube, need not change existing light wiring, can just promote LED replaces the reducing energy consumption of traditional tube to be widely implemented.

In the product of the prior art, there is the LED light that can directly adapt to electric ballast or impedance type Inductive ballast Pipe comes out, however has been found that this kind of product is not very good for the compatibility of existing fluorescent lamp ballast in practical application, Since ballast principle is different, the product of the prior art some for part model ballast cisco unity malfunction, some then can Ballast overload fever is caused, brings fire hazard, further for the low-voltage-grade ballast electricity for being used in North America or Japan Road, it is likely that can burn ballast causes lamps and lanterns to fail.

Utility model content

The utility model is directed to above-mentioned technical problem, provides a kind of LED energy-saving fluorescent lamps, the utility model LED sections Technical solution is used by energy fluorescent tube solves above-mentioned technical problem：

A kind of LED energy-saving fluorescent lamps, wherein, the LED energy-saving fluorescent lamps include：

First high-frequency rectification bridge, the second high-frequency rectification bridge, the first inductor, the second inductor, phase-shifting chopped waves circuit and LED Lamp group；

Two ac input ends of the first high-frequency rectification bridge connect respectively with the first inductor, the second inductor after with Two lamp bases of described fluorescent tube one end are connected, the ac input end of the second high-frequency rectification bridge and the fluorescent tube other end Two lamp bases be connected；

Wherein, the first high-frequency rectification bridge it is in parallel with the DC output end of the second high-frequency rectification bridge after with the phase shift Chopper circuit is connected, then is connected with the LED light group.

Above-mentioned LED energy-saving fluorescent lamps, wherein, the LED energy-saving fluorescent lamps have further included filter capacitor and excessively electric Protector is pressed, the filter capacitor is arranged in parallel with the LED light group, the overvoltage protection device and first high-frequency rectification The DC output end of bridge and the second high-frequency rectification bridge is in parallel.

Above-mentioned LED energy-saving fluorescent lamps, wherein, the phase-shifting chopped waves circuit is by thyristor voltage regulation circuit of chopping or triggering Diode is formed.

Above-mentioned technical proposal has the following advantages that or advantageous effect：

The technical program overcomes prior art LED fluorescent lamp pipe can not adapt to existing fluorescent lighting fixture, reducing energy consumption completely The deficiency of reconfiguration line is needed, it can adapt to all types of fluorescent lighting fixtures of each voltage class in various countries, as long as directly replacing fluorescent tube, Wiring drastically increases the reducing energy consumption efficiency of fluorescent lighting fixture, reduces improvement cost, and spy later without any change Conventional fluorescent fluorescent tube can also be easily gained in the case of different, so as to which the reducing energy consumption enthusiasm of user be substantially improved.

Description of the drawings

Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, the utility model and its spy Sign, shape and advantage will become more apparent.Identical mark indicates identical part in whole attached drawings.It can be by Attached drawing is drawn according to ratio, it is preferred that emphasis is the purport of the utility model is shown.

Fig. 1 and Fig. 2 is the structure diagram of LED energy-saving fluorescent lamps.

Specific embodiment

The utility model is further described with specific embodiment below in conjunction with the accompanying drawings, but not as this practicality New restriction.

As depicted in figs. 1 and 2, the utility model LED energy-saving fluorescent lamps concrete structure includes：

First high-frequency rectification bridge 1, the second high-frequency rectification bridge 2, the first inductor 6, the second inductor 7, phase-shifting chopped waves circuit 4 With LED light group 5；

Two ac input ends of the first high-frequency rectification bridge 1 connect respectively with the first inductor 6, the second inductor 7 after with Two lamp bases of fluorescent tube one end are connected, the ac input end of the second high-frequency rectification bridge 2 and the two of institute's fluorescent tube other end A lamp base is connected；

Wherein, the first high-frequency rectification bridge it is in parallel with the DC output end of the second high-frequency rectification bridge after with phase-shifting chopped waves circuit 4 series connection, then be connected with the LED light group.

In the embodiment of the utility model, LED energy-saving fluorescent lamps have further included filter capacitor 3 and overvoltage protection device 8, filter capacitor 3 is arranged in parallel with LED light group, 8 and first high-frequency rectification bridge 1 of overvoltage protection device and the second high-frequency rectification bridge 2 DC output end it is in parallel.

Preferably, phase-shifting chopped waves circuit 4 is made of thyristor voltage regulation circuit of chopping or diac.

It is well known that there are stringent correspondence, either inductance or electronics between conventional fluorescent fluorescent tube and ballast Ballast, could normal operation when being only used cooperatively with the fluorescent tube of setting electric parameter.The LED lamp tube of the prior art is due to consumption Electrical power reduces, it is necessary to original fluorescent lamp ballast is matched using special driving circuit, is disappeared yet with fluorescent tube is actual The active power of consumption is greatly lowered, and matches anyway, cannot all generate the electrical characteristic identical with original fluorescent lamp, therefore Ballast is difficult to work normally under original state, and fluorescent lamp has 4 lamp bases, and two electrodes at both ends regard different ballasts Circuit has the different methods of operation, if the driving circuit of LED lamp tube is directly connected with the arbitrary lamp base of lamp tube ends, very may be used It can not be formed into a loop due to not connected with the firewire branch of ballast, lamp cannot be lighted；If by two lamps at both ends Each short circuit picks out foot, is not a problem although being run under the impedance type ballast or electric ballast under 220V power environments, But it for the dual-tube ballast of North America, the common electrode independent heating of Japan or electrode series connection heating, then is likely to burn town The heating part coil of device is flowed, is failed so as to cause lamps and lanterns.

Technical solutions of the utility model employ two groups of high-frequency rectification bridges and are connected respectively with two, both ends lamp base, and the 4 of fluorescent tube A lamp base all accesses the exchange side of rectifier bridge, and DC side is all in parallel, as long as any two of so 4 lamp bases is plus electricity Pressure, with regard to fluorescent tube internal circuit can be made to obtain electric work, due to the unilateral conduction of rectifier bridge, DC side is transferred by exchange side Power cannot flow back to exchange side again, therefore according to the wiring of fluorescent lamp, 4 other two connection start-up capacitances of lamp base or starter Lamp base be just never likely to be obtained electric current, therefore plug into Inductive ballast lamps and lanterns when need not just remove starter, electronics of plugging into Overvoltage or overcurrent would not be generated during ballast lamps and lanterns because of the abnormal resonance of start-up capacitance causes ballast to damage or be latched, Possibility is provided for completely compatible existing fluorescent lighting fixture.

In existing LED replacement lighting market, there is the LED replacement fluorescent tube of part using single-ended power pattern, i.e. lamp tube ends Two lamp bases of wherein one end do power input, two lamp base not wiring of the other end.For this kind of LED lamp tube, if therefore It is impossible that the LED fluorescent lamp pipe of conventional fluorescent fluorescent tube or mainstream technology is gained after barrier, if LED light using the present invention Pipe is replaced, then because the isolation electric action of two groups of rectifier bridges of lamp base of the present invention, to be entirely capable of voluntarily adapting to this special Single-ended power line mode directly replaces single-ended power line mode on the basis of not relocating completely.

Since the luminous efficiency of LED light source is far above fluorescent lamp, only needed under equivalent brightness original fluorescent tube 30- The LED element of 70% power, so as to reach energy-saving effect.Since the power that original fluorescent lamp ballast provides fluorescent tube is opposite LED element is bigger than normal, it is therefore desirable to a match circuit is exported come ballast of decaying to the power of LED light group, can just make power compared with Small LED light group normal work.The technical program is passed through by being series at two inductors of one of two lamp bases of lamp cap The choking effect of inductor come limit electric ballast output high frequency electric, so as to play the role of decay power, due to nothing Method differentiates which lamp base input current of the ballast from fluorescent tube one end, therefore there is provided two inductors, so no matter how to pacify Fill fluorescent tube, total there are one inductors to access circuit, come the power of transporting to LED light group of decaying, the high frequency electric warp of ballast output The rectification for crossing high frequency rectifier bridge becomes direct current and gives LED light group power supply, ensures the normal work of LED element.LED element can also be simultaneously Join filter capacitor filtering, become smoother direct current, so as to reduce ripple factor, further extend the service life of LED element.Inductance Saturated inductor can also be used in device, and saturation voltage is set in 0.2-0.8 times or so of ballast output voltage, so sharp With the saturated characteristic of inductor, induction reactance can be made with size of current and dynamically changed, so as to prevent resonance, promote ballast Job stability, while the partial pressure effect of output voltage is completed again, play the role of limiting power.

In order to which the technical program is enable to be compatible with Inductive ballast lamps and lanterns simultaneously, it is necessary to the work(for the power current that can decay Rate attenuator circuit.Since the first inductor 6, the second inductor 7 in the technical program allow for limitation electric ballast High frequency electric design, therefore its inductance value only number person of outstanding talent groans, and can not limit the power current of Inductive ballast, be provided with therefore Phase-shifting chopped waves circuit 4, the phase-shifting chopped waves circuit can be made of thyristor voltage regulation chopper circuit, which is typical thyristor AC Regulating circuit is flowed, loop voltage is reduced by the effect of phase-shifting chopped waves, so as to limit the output current of Inductive ballast, is played The effect of attenuation LED light group power under power frequency pattern.The phase-shifting chopped waves circuit can be also made of diac, and principle is similar , circuit structure can be simpler, but current stability is a bit weaker.In addition the first high-frequency rectification bridge 1 and the second high-frequency rectification The DC output end of bridge 2 can be with an overvoltage protection device in parallel, such as varistor, TVS diode, for clamping down on electricity Pressure prevents the ballast of burst from exporting high steepness high voltage damage circuit or LED light group, overvoltage protection device and can also be connected in parallel on LED light group both ends.

This technology energy 100% is accomplished directly to replace the fluorescent tube of existing various specifications and avoid change light wiring, rises To the advantageous effect that reducing energy consumption cost is greatly reduced；The reducing energy consumption efficiency of fluorescent lighting fixture is drastically increased, reduces and changes This is caused, and can also easily gain conventional fluorescent fluorescent tube in special circumstances later, is changed so as to which the energy saving of user be substantially improved Make enthusiasm；The technical program can block the cathode current of fluorescent lamp, so as to exempt when replacing Inductive ballast lamps and lanterns Remove starter, the resonance current of start-up capacitance can be cut off when replacing electric ballast lamps and lanterns, so as to avoid LED light source power compared with It is small that resonant capacitance is caused to generate over-voltage and over-current, cause the potential risk of ballast operation irregularity, he can also be compatible in addition The Connection Mode of part LED lamp tube power supplying from one direction not only greatly improves LED lamp tube success compatible with existing fluorescent lighting fixture Rate, moreover it is possible to which, by the LED lamp tube Connection Mode of reconfiguration line before compatible, the protrusion for completing compatible all existing fluorescent lighting fixtures is beneficial Effect, and maximumlly simplify the technical sophistication degree of fluorescent lighting fixture LED transformations.

The preferred embodiment of the utility model is described above.It is to be appreciated that the utility model not office It is limited to above-mentioned particular implementation, wherein the equipment and structure be not described in detail to the greatest extent are construed as with the common side in this field Formula is practiced；Any those skilled in the art in the case where not departing from technical solutions of the utility model ambit, may be used Technical solutions of the utility model are made with many possible changes and modifications using the methods and technical content of the disclosure above or is repaiied The equivalent embodiment of equivalent variations is changed to, this has no effect on the substantive content of the utility model.Therefore, it is every without departing from this practicality The content of new technique scheme, according to the technical essence of the utility model to it is made for any of the above embodiments it is any it is simple modification, etc. With variation and modification, still fall within technical solutions of the utility model protection in the range of.

Claims (3)

1. a kind of LED energy-saving fluorescent lamps, which is characterized in that the LED energy-saving fluorescent lamps include：

First high-frequency rectification bridge, the second high-frequency rectification bridge, the first inductor, the second inductor, phase-shifting chopped waves circuit and LED light Group；

Two ac input ends of the first high-frequency rectification bridge connect respectively with the first inductor, the second inductor after with it is described Two lamp bases of fluorescent tube one end are connected, the ac input end of the second high-frequency rectification bridge and the two of the fluorescent tube other end A lamp base is connected；

Wherein, the first high-frequency rectification bridge it is in parallel with the DC output end of the second high-frequency rectification bridge after with the phase-shifting chopped waves Circuit connected in series, then be connected with the LED light group.

2. LED energy-saving fluorescent lamps according to claim 1, which is characterized in that the LED energy-saving fluorescent lamps further include Have filter capacitor and overvoltage protection device, the filter capacitor is arranged in parallel with the LED light group, the overvoltage protection device with The DC output end of the first high-frequency rectification bridge and the second high-frequency rectification bridge is in parallel.

3. LED energy-saving fluorescent lamps according to claim 1, which is characterized in that the phase-shifting chopped waves circuit is by thyristor Voltage regulation circuit of chopping or diac are formed.