CN201866594U

CN201866594U - LED daylight lamp and connecting circuit thereof

Info

Publication number: CN201866594U
Application number: CN201020648378XU
Authority: CN
Inventors: 刘昌贵
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-12-07
Filing date: 2010-12-07
Publication date: 2011-06-15
Anticipated expiration: 2020-12-07

Abstract

The embodiment of the utility model discloses an LED daylight lamp and a connecting circuit of the daylight lamp. The LED daylight lamp comprises an LED daylight tube which comprises a first end cover and a second end cover that respectively comprise two pins, a first bridge rectification circuit and a second bridge rectification circuit are respectively connected between the pins of the first end cover and the second end cover, a first inductance is connected between one pin of the first end cover and one pin of the second end cover in series, the output ends of the first bridge rectification circuit and the second bridge rectification circuit are connected with an LED lamp set in parallel, and the LED lamp set comprises an LED light source set and a circuit providing a constant current or a constant voltage. By adopting the LED daylight lamp and the connecting circuit of the daylight lamp, the fluorescent lamp is directly replaced by the LED daylight lamp under the circumstance that the peripheral circuit of the traditional fluorescent lamp is not changed.

Description

A kind of LED fluorescent lamp and fluorescent lamps connected connection circuit

Technical field

The utility model relates to the LED field, relates in particular to LED fluorescent lamp and fluorescent lamps connected connection circuit.

Background technology

In the traditional lighting light source, straight tube fluorescent lamp and circline are used for commercial lighting, office lighting and domestic lighting in a large number.Be illustrated in figure 1 as the circuit diagram of at present common a kind of fluorescent lamp.As shown in Figure 1, a kind of common fluorescent lamp circuit comprises an electric ballast, a fluorescent tube, civil power (being usually said alternating current) is from the input input of electric ballast, through output two-way direct current signal after the conversion of electric ballast, wherein one road direct current signal is imported two pin input end of an end cap of fluorescent lamp simultaneously, and another road direct current signal is imported two pin input end of another end cap of fluorescent lamp simultaneously.

Aspect light efficiency, fluorescent lamp is better than common incandescent lamp and Halogen lamp LED greatly, and its energy-saving effect is remarkable, but the fluorescent tube of fluorescent lamp contains mercury element, and is damaged or when scrapping when fluorescent tube, causes environmental pollution easily.Development along with light source technology, the light emitting diode (LED) that the solid state light emitter performance occurred, the power savings advantages of led light source and environment-friendly advantage more surpass fluorescent lamp, therefore, in recent years, the LED lamp replaces traditional various light sources successively, on this basis, also designs fluorescent lamp based on LED to replace traditional straight tube fluorescent lamp or circline.

At present, common LED fluorescent tube comprises following several:

Fig. 2 and shown in Figure 3 be a kind of LED fluorescent lamp and the circuit diagram thereof that the most generally uses at present, as shown in Figures 2 and 3, the power supply driver that comprises a plurality of led light sources and driving LED light source in LED fluorescent-lamp tube inside, civil power enters from the two ends of fluorescent tube, this LED fluorescent lamp is after an end of fluorescent tube inserts lamp socket and energising, it is also charged that the other end does not insert the part of lamp socket, is easy to generate potential safety hazard.

For overcoming the defective of Fig. 2 and fluorescent tube shown in Figure 3, Fig. 4 and fluorescent tube shown in Figure 5 have been designed at present.As Fig. 4 and shown in Figure 5, comprise power supply driver and two LED lamp strings of two led light sources in the prior art in the fluorescent tube inside of LED fluorescent lamp, the independent two ends input from fluorescent lamp of civil power is acted in collusion to make each other's confessions to two LED fluorescent lamps respectively.Though can solve potential safety hazard like this, increase the cost of making fluorescent tube.

In addition, for overcoming the defective of Fig. 2 and fluorescent tube shown in Figure 3, Fig. 6 and fluorescent tube shown in Figure 7 have also been designed at present.As Figure 6 and Figure 7, the civil power of the prior art is only imported from an end of LED fluorescent tube, and the other end is vacant.

In addition, Fig. 8 is another kind of more common LED fluorescent lamp design, and this scheme moves on to the LED power supply driver outside of fluorescent-lamp tube.Import from the two ends of LED fluorescent-lamp tube respectively behind the driving power output dc low-voltage electricity.

All there is following technological deficiency in foregoing several frequently seen LED fluorescent lamp design:

Above-mentioned various LED fluorescent lamp all can not be directly installed in traditional fluorescent lamp peripheral circuit shown in Figure 1 and be used for direct replace fluorescent lamps fluorescent tube.If above-mentioned various LED fluorescent lamps are installed in traditional fluorescent lamp circuit, more or less need to change the structure of described fluorescent lamp peripheral circuit.

Because fluorescent lamp uses in life in a large number, special is that the designed support of fluorescent lamp, lamp panel and peripheral circuit are also disposed already in a large number, if the peripheral circuit in order to use the LED fluorescent lamp with the fluorescent lamp of moulding changes, this will increase a large amount of costs, and waste a large amount of resources.Therefore present very serious hope can produce a kind of under the situation of the peripheral circuit structure that does not change fluorescent lamp, can be directly installed on the LED fluorescent lamp in the conventional fluorescent circuit for lamp.

The utility model content

The utility model embodiment technical problem to be solved is, LED fluorescent lamp and fluorescent lamps connected connection circuit are provided, and to be implemented under the situation that does not change the conventional fluorescent peripheral circuit, directly uses LED fluorescent lamp replace fluorescent lamps.

The utility model embodiment provides a kind of LED fluorescent lamp, comprise the LED fluorescent tube, described LED fluorescent tube comprises first end cap and second end cap, described first end cap and described second end cap comprise two pins respectively, in described LED fluorescent tube inside, between two pins of described first end cap, be parallel with first bridge rectifier and be parallel with second bridge rectifier at two pins of described second end cap, and between a pin of pin of described first end cap and described second end cap, be in series with first inductance, between another pin of another pin of described first end cap and described second end cap, be in series with second inductance, the output parallel connection LED lamp group of described first bridge rectifier and described second bridge rectifier, described LED lamp group comprise the led light source group and are used for providing the circuit of constant current or constant voltage to described led light source group.

Preferable, before described first bridge rectifier, be parallel with the 3rd inductance between two pins of described first end cap;

Before described second bridge rectifier, be parallel with the 4th inductance between two pins of described second end cap.

Preferable, after described the 3rd inductance, before described first bridge rectifier, also be parallel with the circuit that forms by first electric capacity and the series connection of first resistance between two pins of described first end cap;

After described the 4th inductance, before described second bridge rectifier, also be parallel with the circuit that forms by second electric capacity and the series connection of second resistance between two pins of described second end cap.

Perhaps, the output of described the 3rd inductance and with pin that described output links to each other between series connection the 5th electric capacity;

The output of described the 4th inductance and with pin that described output links to each other between series connection the 6th electric capacity.

Preferable, LED fluorescent lamp of the present utility model, the output of described first inductance and with pin that described output links to each other between series connection the 7th electric capacity; The output of described second inductance and with pin that described output links to each other between series connection the 8th electric capacity.

Preferable, LED fluorescent lamp of the present utility model after described the 3rd inductance, before described first bridge rectifier, also is parallel with the circuit that is formed by first electric capacity and the series connection of first resistance between two pins of described first end cap; After described the 4th inductance, before described second bridge rectifier, when also being parallel with the circuit that forms by the series connection of second electric capacity and second resistance between two pins of described second end cap, the output of described the 3rd inductance and with pin that described output links to each other between connect one to make described the 3rd inductance original state be first switch element of off-state; The output of described the 4th inductance and with pin that described output links to each other between series connection one to make described the 4th inductance original state be the second switch element of off-state.

Preferable, between described the 3rd inductance and described first switch element, also be in series with the 3rd electric capacity;

Between described the 4th inductance and described second switch element, also be in series with the 4th electric capacity.

Preferable, described first switch element and described second switch element be in controllable silicon, photoelectrical coupler, relay and the transistor any;

When described first switch element was controllable silicon, described silicon controlled trigger end was connected on the connecting line between described first electric capacity and described first resistance;

When described second switch element was controllable silicon, described silicon controlled trigger end was connected on the connecting line between described second electric capacity and described second resistance.

Preferable, described be used for to described led light source group provide the circuit of constant current or constant voltage be resistance, transistor any.

It is perhaps, described that to be used for providing the circuit of constant current or constant voltage to described led light source group be the LED power supply driver.

Preferable, when described when being used for providing the circuit of constant current or constant voltage to be the LED power supply driver to described led light source group, at the front end of described LED lamp group, the output of described first bridge rectifier also is parallel with the circuit of the 5th resistance and the 3rd switch element series connection formation.

Preferable, described the 3rd switch element comprises in starter, controllable silicon, triode, relay, the Zener diode any.

Preferable, LED fluorescent lamp of the present utility model, at the two ends of described LED lamp group, the output of described first bridge rectifier is parallel with first filter capacitor, and the output of described second bridge rectifier is parallel with second filter capacitor.

Preferable, LED fluorescent lamp of the present utility model, the output of described first inductance and with pin that described output links to each other between series connection the 4th switch element;

The output of described second inductance and with pin that described output links to each other between series connection the 5th switch element.

In addition, the utility model embodiment also provides a kind of fluorescent lamps connected connection circuit, comprise the electric ballast in the fluorescent lamp circuit, also comprise in all LED fluorescent lamps that the utility model embodiment provides any, two inputs of described electric ballast are connected to the two ends that exchange input, two pins on first end cap of described fluorescent lamp is connected first output of described electron rectifier simultaneously, and the two pins on second end cap of described fluorescent lamp is connected second output of described electron rectifier at the same time.When the LED fluorescent lamp of the fluorescent lamps connected connection circuit connection in the present embodiment comprises the 4th switch element and the 5th switch element, described the 4th switch element and described the 5th switch element closure.

Implement the utility model embodiment, have following beneficial effect:

The LED fluorescent lamp that the utility model embodiment provides between the pin of end cap, connected first inductance and second inductance, when in the fluorescent lamp circuit of LED fluorescent lamp the utility model prior art that the utility model embodiment provides, after described first inductance and second inductance are adjusted the input characteristics of fluorescent lamp circuit, neither change the circuit structure of fluorescent lamp circuit in the time of can making the LED fluorescent lamp insert in the circuit of fluorescent lamp, the LED fluorescent lamp is normally lighted.In addition, for the input characteristics to fluorescent lamp circuit is better adjusted, the utility model embodiment the 3rd inductance also in parallel and the 4th inductance.In addition, for the input characteristics to fluorescent lamp circuit is better adjusted, the utility model embodiment on the basis of the 3rd inductance in parallel and the 4th inductance, the circuit that forms by first electric capacity and the series connection of first resistance in parallel, and the circuit of connecting and forming in parallel by second electric capacity and second resistance.In addition, for the input characteristics to fluorescent lamp circuit is better adjusted, the utility model embodiment on the basis of the 3rd inductance in parallel and the 4th inductance, also the output of described the 3rd inductance and with pin that described output links to each other between the 5th electric capacity of connecting; The output of described the 4th inductance and with pin that described output links to each other between series connection the 6th electric capacity.In addition, for the input characteristics to fluorescent lamp circuit is better adjusted, the circuit that the utility model embodiment is formed by first electric capacity and the series connection of first resistance in parallel connection, and on the basis of the circuit that forms by second electric capacity and the series connection of second resistance in parallel, the output of described the 3rd inductance and with pin that described output links to each other between connect one to make described the 3rd inductance original state be first switch element of off-state; The output of described the 4th inductance and with pin that described output links to each other between series connection one to make described the 4th inductance original state be the second switch element of off-state.In addition, for the input characteristics to fluorescent lamp circuit is better adjusted, the utility model embodiment also is in series with the 3rd electric capacity between described the 3rd inductance and described first switch element on the basis of series connection first switch element and second switch element; Between described the 4th inductance and described second switch element, also be in series with the 4th electric capacity.In addition, to be used for providing the circuit of constant current or constant voltage to described led light source group be the LED power supply driver when described, when the peripheral circuit that inserts is the electron rectifier fluorescent lamp circuit, the output of described first bridge rectifier also is parallel with the circuit of the 5th resistance and the 3rd switch element series connection formation, this circuit can produce feedback current to circuit input end on described the 5th resistance, so that the input characteristics of the output characteristics of electron rectifier and LED fluorescent lamp is mated.Above-mentioned various LED fluorescent lamps are installed in the fluorescent lamps connected connection circuit of the utility model embodiment, fluorescent lamps connected connection circuit is like this compared with existing fluorescent lamp circuit, circuit structure does not change, only be to have replaced traditional fluorescent lamp with the LED fluorescent lamp of the utility model embodiment, can economize on resources greatly like this, user-friendly.

Description of drawings

In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is the structural representation of existing a kind of electric ballast fluorescent lamp circuit;

Fig. 2 is existing a kind of LED fluorescent lamp peripheral circuit connected mode schematic diagram;

Fig. 3 is the internal circuit configuration schematic diagram of LED fluorescent lamp shown in Figure 2;

Fig. 4 is existing another kind of LED fluorescent lamp peripheral circuit connected mode schematic diagram;

Fig. 5 is the internal circuit configuration schematic diagram of LED fluorescent lamp shown in Figure 4;

Fig. 6 is existing another kind of LED fluorescent lamp peripheral circuit connected mode schematic diagram;

Fig. 7 is the internal circuit configuration schematic diagram of LED fluorescent lamp shown in Figure 6;

Fig. 8 is the peripheral circuit connected mode schematic diagram of existing another kind of LED fluorescent lamp;

Fig. 9 is the internal circuit configuration schematic diagram of first embodiment of LED fluorescent lamp of the present utility model;

Figure 10 is that LED daylight lamp circuit shown in Figure 9 is connected to the electrical block diagram in the electric ballast fluorescent lamp peripheral circuit shown in Figure 1;

Figure 11 is the internal circuit configuration schematic diagram of second embodiment of LED fluorescent lamp of the present utility model;

Figure 12 is that LED daylight lamp circuit shown in Figure 11 is connected to the electrical block diagram in the electric ballast fluorescent lamp peripheral circuit shown in Figure 1;

Figure 13 is the structural representation of existing another kind of electric ballast fluorescent lamp circuit;

Figure 14 is that LED daylight lamp circuit shown in Figure 11 is connected to the electrical block diagram in the electric ballast fluorescent lamp peripheral circuit shown in Figure 13.

Figure 15 is the internal circuit configuration schematic diagram of the 3rd embodiment of LED fluorescent lamp of the present utility model;

Figure 16 is that LED daylight lamp circuit shown in Figure 15 is connected to the electrical block diagram in the electric ballast fluorescent lamp peripheral circuit shown in Figure 1;

Figure 17 is the internal circuit configuration schematic diagram of the 4th embodiment of LED fluorescent lamp of the present utility model;

Figure 18 is that LED daylight lamp circuit shown in Figure 17 is connected to the electrical block diagram in the electric ballast fluorescent lamp peripheral circuit shown in Figure 1;

Figure 19 is the internal circuit configuration schematic diagram of the 5th embodiment of LED fluorescent lamp of the present utility model;

Figure 20 is that LED daylight lamp circuit shown in Figure 19 is connected to the electrical block diagram in the electric ballast fluorescent lamp peripheral circuit shown in Figure 1;

Figure 21 is the internal circuit configuration schematic diagram of the 6th embodiment of LED fluorescent lamp of the present utility model;

Figure 22 is that LED daylight lamp circuit shown in Figure 21 is connected to the electrical block diagram in the electric ballast fluorescent lamp peripheral circuit shown in Figure 1;

Figure 23 is the internal circuit configuration schematic diagram of the 7th embodiment of LED fluorescent lamp of the present utility model;

Figure 24 is that LED daylight lamp circuit shown in Figure 23 is connected to the electrical block diagram in the electric ballast fluorescent lamp peripheral circuit shown in Figure 1;

Figure 25 is the electrical block diagram in the Inductive ballast fluorescent lamp peripheral circuit that is connected to of LED daylight lamp circuit shown in Figure 23;

Figure 26 is the internal circuit configuration schematic diagram of the 8th embodiment of LED fluorescent lamp of the present utility model;

Figure 27 is the internal circuit configuration schematic diagram of the 9th embodiment of LED fluorescent lamp of the present utility model;

Figure 28 is the internal circuit configuration schematic diagram of the tenth embodiment of LED fluorescent lamp of the present utility model;

Figure 29 is the internal circuit configuration schematic diagram of the 11 embodiment of LED fluorescent lamp of the present utility model;

Figure 30 is the internal circuit configuration schematic diagram of the 12 embodiment of LED fluorescent lamp of the present utility model;

Figure 31 is the internal circuit configuration schematic diagram of the 13 embodiment of LED fluorescent lamp of the present utility model;

Figure 32 is the internal circuit configuration schematic diagram of the 14 embodiment of LED fluorescent lamp of the present utility model;

Figure 33 is the internal circuit configuration schematic diagram of the 15 embodiment of LED fluorescent lamp of the present utility model;

Figure 34 is the internal circuit configuration schematic diagram of the 16 embodiment of LED fluorescent lamp of the present utility model;

Figure 35 is the internal circuit configuration schematic diagram of the 17 embodiment of LED fluorescent lamp of the present utility model;

Figure 36 is the internal circuit configuration schematic diagram of the 18 embodiment of LED fluorescent lamp of the present utility model;

Figure 37 is the internal circuit configuration schematic diagram of the 19 embodiment of LED fluorescent lamp of the present utility model;

Figure 38 is the internal circuit configuration schematic diagram of the 20 embodiment of LED fluorescent lamp of the present utility model;

Figure 39 is the electrical block diagram of circuit belt switch shown in Figure 37.

Figure 40 is the electrical block diagram that the described LED daylight lamp circuit of Figure 21 directly inserts first embodiment of civil power;

Figure 41 is the electrical block diagram that the described LED daylight lamp circuit of Figure 21 directly inserts second embodiment of civil power;

Figure 42 is the electrical block diagram that the described LED daylight lamp circuit of Figure 21 directly inserts the 3rd embodiment of civil power;

Figure 43 is the electrical block diagram that the described LED daylight lamp circuit of Figure 21 directly inserts the 4th embodiment of civil power.

The specific embodiment

Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described.

A kind of LED fluorescent lamp that the utility model provides, comprise the LED fluorescent tube, described LED fluorescent tube comprises first end cap and second end cap, described first end cap and described second end cap comprise two pins respectively, in described LED fluorescent tube inside, be parallel with second bridge rectifier being parallel with between two pins of described first end cap between first bridge rectifier and two pins at described second end cap, and wherein be in series with first inductance between the pin at the wherein pin of described first end cap and described second end cap, between another pin of another pin of described first end cap and described second end cap, be in series with second inductance, the output parallel connection LED lamp group of described first bridge rectifier and described second bridge rectifier, described LED lamp group comprise the led light source group and are used for providing the circuit of constant current or constant voltage to described led light source group.In the specific implementation, when the described circuit that constant current or constant voltage be provided adopts in resistance, the transistor any, the inside of this LED fluorescent lamp provides the circuit structure of constant current or constant voltage can be as shown in Figure 9, and when the circuit that constant current or constant voltage are provided adopted power supply driver, this LED fluorescent lamp internal circuit configuration can be as Figure 26 and shown in Figure 27.

As shown in Figure 9, the internal circuit of LED fluorescent lamp of the present utility model can comprise pin 1, pin 2, pin 3 and pin 4, in the specific implementation, described pin 1 and pin 2 can be positioned on first end cap of LED fluorescent lamp, and described pin 3 and pin 4 can be positioned on second end cap of LED fluorescent lamp.First bridge rectifier of forming by Q1-Q4 in parallel between pin 1 and pin 2, between the both positive and negative polarity of the output of first bridge rectifier of forming by Q1-Q4, connect a filter capacitor C1 (in the specific implementation, can not comprise filter capacitor C1), between pin 3 and pin 4, be parallel with second bridge rectifier of forming by Q5-Q8, between the both positive and negative polarity of the output of second bridge rectifier of forming by Q5-Q8, connect a filter capacitor C2 (in the specific implementation, can not comprise filter capacitor C2), and series inductance L3 between pin 1 and pin 3, series inductance L4 between pin 2 and pin 4.As shown in Figure 9, bridge rectifier, the filter capacitor between the bridge rectifier between pin 1 and the pin 2, filter capacitor and pin 3 and the pin 4 is symmetrical structure.Further, be connected the LED lamp group of forming by circuit T1 that constant current or constant voltage are provided and led light source group (wherein D1, D2, D3.....Dn are the LED lamp) at the two ends of described filter capacitor C1 and filter capacitor C2.Provide the circuit T1 of constant current or constant voltage to can be in resistance, the transistor any in the specific implementation.

Figure 10 is that LED daylight lamp circuit shown in Figure 9 is connected to the electrical block diagram in the electric ballast fluorescent lamp peripheral circuit of Fig. 1.Simultaneously, Figure 10 has also formed the structural representation of first embodiment of fluorescent lamps connected connection circuit of the present utility model.In traditional fluorescent lamp circuit, electric ballast is used to start fluorescent tube, it can realize that traditional Inductive ballast provides preheat curent, starts the effect that fluorescent tube, stabling current are lighted in high-voltage breakdown to Filament of fluorescent lamp under the condition of low-power consumption, high power factor.It operates mainly in the high frequency state about 40KHZ.Concrete, as shown in figure 10, when the LED daylight lamp circuit among Fig. 9 being connected in the electric ballast fluorescent lamp peripheral circuit shown in Figure 1, the pin 1 of LED fluorescent lamp and pin 2 are connected to an output of electric ballast simultaneously, pin 3, pin 4 is connected to another output of electric ballast simultaneously, the input of electric ballast is connected to and exchanges the AC input, in the specific implementation, when exchanging AC input incoming transport electricity, according to the course of work of electric ballast as can be known, it at first needs to provide a preheat curent to filament, start high pressure then and trigger the conducting of LDE lamp, and in the present embodiment, inductance L 3 and inductance L 4 will influence the output characteristics of electric ballast, concrete, inductance L 3 and inductance L 4 can be regulated the high frequency voltage of electric ballast output, so that input pin 1, pin 2, circuit parameter between pin 3 and the pin 4 mates fully with the parameter of lighting the LED fluorescent lamp, when not changing primary electron ballast fluorescent lamp circuit, normally the LED lamp is lighted to be implemented in.

As shown in figure 26, it replaces the circuit T1 that constant current or constant voltage are provided shown in Fig. 9 with power supply driver.In the specific implementation, when adopting daylight lamp circuit shown in Figure 26, its mode that inserts electric ballast fluorescent lamp circuit shown in Figure 1 is identical with the connecting circuit of Figure 10, does not give unnecessary details at this.

In addition, shown in Figure 27 (having removed capacitor C 1 and capacitor C 2 among Figure 26), can also on the basis of daylight lamp circuit shown in Figure 26, increase the series circuit that forms by resistance R x and starter S1.As Figure 27, at the front end of described LED lamp group, the output of described first bridge rectifier also is parallel with the circuit of resistance R x and starter S1 series connection formation.After employing daylight lamp circuit shown in Figure 27 inserts the electric ballast fluorescent lamp circuit in mode shown in Figure 10, the output of electron rectifier is through behind the bridge rectifier, can between the both positive and negative polarity that the direct current of bridge rectifier is exported, produce a high voltage, at this moment, the conducting that is triggered of starter S1 moment, be short-circuited, having electric current on resistance R x flows through, this electric current can feed back to the input of electric ballast, make electron rectifier change output characteristics, thus the input characteristics of coupling LED fluorescent lamp.In the specific implementation, the element of connecting with resistance R x is not limited to starter, also can be switch elements such as controllable silicon, triode, relay, as long as these switch elements can satisfy in LED daylight lamp circuit access electric ballast fluorescent lamp circuit, between the both positive and negative polarity of the output of first bridge rectifier, can produce certain voltage, after this voltage can make these switch elements moments be switched on, produce current flowing resistance Rx and get final product.

The another kind of LED fluorescent lamp that the utility model provides, comprise the LED fluorescent tube, described LED fluorescent tube comprises first end cap and second end cap, described first end cap and described second end cap comprise two pins respectively, in described LED fluorescent tube inside, be parallel with second bridge rectifier in parallel between first bridge rectifier and two pins between two pins of described first end cap at described second end cap, and, before described first bridge rectifier, be parallel with the 3rd inductance between two pins of described first end cap; Before described second bridge rectifier, be parallel with the 4th inductance between two pins of described second end cap; And wherein be in series with first inductance between the pin at the wherein pin of described first end cap and described second end cap, between another pin of another pin of described first end cap and described second end cap, be in series with second inductance, the output parallel connection LED lamp group of described first bridge rectifier and described second bridge rectifier, described LED lamp group comprise the led light source group and are used for providing the circuit of constant current or constant voltage to described led light source group.Provide the circuit of constant current or constant voltage to can be in resistance, transistor and the LED power supply driver any in the specific implementation.In the specific implementation, when the circuit that constant current or constant voltage are provided adopts in resistance, the transistor any, the internal circuit configuration of this LED fluorescent lamp can be as shown in figure 11, and when the circuit that constant current or constant voltage are provided adopted power supply driver, this LED fluorescent lamp internal circuit configuration can be as Figure 28 and shown in Figure 29.

As shown in figure 11, LED fluorescent lamp internal circuit of the present utility model can be on the basis of circuit shown in Figure 9, before first bridge rectifier that Q1-Q4 forms, the 3rd inductance L 1 in parallel between described pin 1 and pin 2, before second bridge rectifier that Q5-Q8 forms, the 4th inductance L 2 in parallel between described pin 3 and pin 4.The function that circuit shown in Figure 11 and circuit shown in Figure 9 are realized is basic identical, it still can directly be linked in the conventional electronic ballast fluorescent lamp circuit shown in Figure 1, meanwhile, the LED fluorescent lamp of present embodiment also can directly insert in the conventional electronic ballast fluorescent lamp circuit shown in Figure 13.After effective cooperation of present embodiment by inductance L 1, inductance L 2, inductance L 3, inductance L 4, the Inductive ballast in the conventional fluorescent circuit for lamp or the output characteristics of electric ballast and the input characteristics of LED fluorescent lamp are mated more, improve the illumination effect of LED fluorescent lamp, strengthen the stability of entire circuit.

Figure 12 is that LED daylight lamp circuit shown in Figure 11 is connected to the electrical block diagram in the electric ballast fluorescent lamp peripheral circuit of Fig. 1.Simultaneously, Figure 12 has also formed the structural representation of second embodiment of fluorescent lamps connected connection circuit of the present utility model.In traditional fluorescent lamp circuit, electric ballast is used to start fluorescent tube, it can realize that traditional Inductive ballast provides preheat curent, starts the effect that fluorescent tube, stabling current are lighted in high-voltage breakdown to Filament of fluorescent lamp under the condition of low-power consumption, high power factor.It operates mainly in the high frequency state about 40KHZ.Concrete, as shown in figure 12, when the LED daylight lamp circuit among Figure 11 being connected in the electric ballast fluorescent lamp peripheral circuit shown in Figure 1, an output, pin 3, the pin 4 that the pin 1 of LED fluorescent lamp and pin 2 are connected to electric ballast simultaneously is connected to another output of electric ballast simultaneously, and the input of electric ballast is connected to and exchanges the AC input.In the specific implementation, when exchanging AC input incoming transport electricity, the inductance L 1 of present embodiment, inductance L 2, inductance L 3, inductance L 4 will be regulated the high frequency voltage of electric ballast output, so that the circuit parameter between input pin 1, pin 2, pin 3 and the pin 4 mates fully with the parameter of lighting the LED fluorescent lamp, when not changing primary electron ballast fluorescent lamp circuit, normally the LED lamp is lighted to be implemented in.

Figure 14 is that LED daylight lamp circuit shown in Figure 11 is connected to the electrical block diagram in the electric ballast fluorescent lamp peripheral circuit of Figure 13.As shown in figure 14, when the LED daylight lamp circuit among Figure 11 being connected in the electric ballast fluorescent lamp peripheral circuit shown in Figure 13, the pin 1 of LED fluorescent lamp, pin 2, pin 3 and pin 4 are connected respectively to four outputs of electric ballast, the input of electric ballast is connected to and exchanges the AC input, in the specific implementation, when exchanging AC input incoming transport electricity, inductance L 1, inductance L 2, inductance L 3, inductance L 4 will influence the output characteristics of electric ballast, so that input pin 1, pin 2, circuit parameter between pin 3 and the pin 4 mates fully with the parameter of lighting the LED fluorescent lamp, when not changing primary electron ballast fluorescent lamp circuit, normally the LED lamp is lighted to be implemented in.

As shown in figure 28, it replaces the circuit T1 that constant current or constant voltage are provided shown in Figure 11 with power supply driver.In the specific implementation, when adopting daylight lamp circuit shown in Figure 28, its mode that inserts Fig. 1 and electric ballast fluorescent lamp circuit shown in Figure 13 is identical with the connecting circuit of Figure 12, Figure 14, does not give unnecessary details at this.

In addition, shown in Figure 29 (having removed capacitor C 1 and capacitor C 2 among Figure 28), can also on the basis of daylight lamp circuit shown in Figure 28, increase the series circuit that forms by resistance R x and starter S1.The effect of Rx among Figure 29 and starter S1 with and alternative elements and Figure 27 similar, do not give unnecessary details at this.

The another kind of LED fluorescent lamp that the utility model provides, comprise the LED fluorescent tube, described LED fluorescent tube comprises first end cap and second end cap, described first end cap and described second end cap comprise two pins respectively, in described LED fluorescent tube inside, between two pins of described first end cap, be parallel with the 3rd inductance successively, the circuit and first bridge rectifier that form by the series connection of first electric capacity and first resistance, between two pins of described second end cap, be parallel with the 4th inductance successively, the circuit and second bridge rectifier that form by the series connection of second electric capacity and second resistance, and wherein be in series with first inductance between the pin at the wherein pin of described first end cap and described second end cap, between another pin of another pin of described first end cap and described second end cap, be in series with second inductance, the output parallel connection LED lamp group of described first bridge rectifier and described second bridge rectifier, described LED lamp group comprise the led light source group and are used for providing the circuit of constant current or constant voltage to described led light source group.Provide the circuit of constant current or constant voltage to can be in resistance, transistor and the LED power supply driver any in the specific implementation.In the specific implementation, when the circuit that constant current or constant voltage are provided adopts in resistance, the transistor any, the internal circuit configuration of this LED fluorescent lamp can be as shown in figure 15, and when the circuit that constant current or constant voltage are provided adopted power supply driver, this LED fluorescent lamp internal circuit configuration can be as Figure 30 and shown in Figure 31.

As shown in figure 15, the internal circuit of LED fluorescent lamp of the present utility model can be on the basis of circuit shown in Figure 11, the circuit that forms by capacitor C 3 and resistance R 3 series connection in parallel between pin 1 and pin 2, the circuit that forms by capacitor C 4 and resistance R 4 series connection in parallel between pin 3 and pin 4.The function that circuit shown in Figure 15 and circuit shown in Figure 9 are realized is basic identical, and it still can directly be linked in the conventional electronic ballast fluorescent lamp circuit of Fig. 1.After effective cooperation of present embodiment by inductance L 1, capacitor C 3, resistance R 3, inductance L 2, capacitor C 4, inductance L 3, inductance L 4 and resistance R 4, the Inductive ballast in the conventional fluorescent circuit for lamp or the output characteristics of electric ballast and the input characteristics of LED fluorescent lamp are mated more, improve the illumination effect of LED fluorescent lamp, strengthen the stability of entire circuit.

Figure 16 is that LED daylight lamp circuit shown in Figure 15 is connected to the electrical block diagram in the electric ballast fluorescent lamp peripheral circuit of Fig. 1.Simultaneously, Figure 16 has also formed the structural representation of the 3rd embodiment of fluorescent lamps connected connection circuit of the present utility model.As shown in figure 16, when the LED daylight lamp circuit among Figure 15 being connected in Fig. 1 electric ballast fluorescent lamp peripheral circuit, the pin 1 of LED fluorescent lamp, pin 2, pin 3 and pin 4 are connected to the output of electric ballast, the input of electric ballast is connected to and exchanges the AC input, in the specific implementation, when exchanging AC input incoming transport electricity, present embodiment is by inductance L 1, capacitor C 3, resistance R 3, inductance L 2, capacitor C 4, inductance L 3, after effective cooperation of inductance L 4 and resistance R 4, so that input pin 1, pin 2, circuit parameter between pin 3 and the pin 4 mates fully with the parameter of lighting the LED fluorescent lamp, when not changing primary electron ballast fluorescent lamp circuit, normally the LED lamp is lighted to be implemented in.

Same, the LED fluorescent lamp of present embodiment also can be used for electric ballast fluorescent lamp circuit shown in Figure 13.Its access way is identical with Figure 14, does not give unnecessary details at this.

As shown in figure 30, it replaces the circuit T1 that constant current or constant voltage are provided shown in Figure 15 with power supply driver.In the specific implementation, when adopting daylight lamp circuit shown in Figure 30, its mode that inserts the electric ballast fluorescent lamp circuit is identical with the connecting circuit of Figure 16, Figure 14, does not give unnecessary details at this.

In addition, shown in Figure 31 (having removed capacitor C 1 and capacitor C 2 among Figure 30), can also on the basis of daylight lamp circuit shown in Figure 30, increase the series circuit that forms by resistance R x and starter S1.The effect of Rx among Figure 31 and starter S1 with and alternative elements and Figure 27 similar, do not give unnecessary details at this.

The another kind of LED fluorescent lamp that the utility model provides, comprise the LED fluorescent tube, described LED fluorescent tube comprises first end cap and second end cap, described first end cap and described second end cap comprise two pins respectively, in described LED fluorescent tube inside, between two pins of described first end cap, be parallel with the circuit and first bridge rectifier that the 3rd inductance and the 5th capacitances in series form, between two pins of described second end cap, be parallel with the circuit and second rectification circuit that the 4th inductance and the 6th capacitances in series form, wherein be in series with first inductance between the pin at the wherein pin of described first end cap and described second end cap, between another pin of another pin of described first end cap and described second end cap, be in series with second inductance, the output parallel connection LED lamp group of described first bridge rectifier and described second bridge rectifier, described LED lamp group comprise the led light source group and are used for providing the circuit of constant current or constant voltage to described led light source group.Provide the circuit of constant current or constant voltage to can be in resistance, transistor and the LED power supply driver any in the specific implementation.In the specific implementation, when the circuit that constant current or constant voltage are provided adopts in resistance, the transistor any, the internal circuit configuration of this LED fluorescent lamp can be as shown in figure 17, and when the circuit that constant current or constant voltage are provided adopted power supply driver, this LED fluorescent lamp internal circuit configuration can be as Figure 32 and shown in Figure 33.

As shown in figure 17, the internal circuit of LED fluorescent lamp of the present utility model can be on the basis of circuit shown in Figure 11, the capacitor C 5 of having connected between inductance L 1 and pin 2, the capacitor C 6 of having connected between inductance L 2 and pin 4.The function that circuit shown in Figure 17 and circuit shown in Figure 9 are realized is basic identical, and it still can directly be linked in the conventional electronic ballast fluorescent lamp circuit of Fig. 1.After effective cooperation of present embodiment by inductance L 1, capacitor C 5, inductance L 2, capacitor C 6, inductance L 3, inductance L 4, the Inductive ballast in the conventional fluorescent circuit for lamp or the output characteristics of electric ballast and the input characteristics of LED fluorescent lamp are mated more, improve the illumination effect of LED fluorescent lamp, strengthen the stability of entire circuit.

Figure 18 is that LED daylight lamp circuit shown in Figure 17 is connected to the electrical block diagram in the electric ballast fluorescent lamp peripheral circuit of Fig. 1.Simultaneously, Figure 18 has also formed the structural representation of the 4th embodiment of fluorescent lamps connected connection circuit of the present utility model.As shown in figure 18, when the LED daylight lamp circuit among Figure 17 being connected in the electric ballast fluorescent lamp peripheral circuit shown in Figure 1, an output, pin 3, the pin 4 that the pin 1 of LED fluorescent lamp and pin 2 are connected to electric ballast simultaneously is connected to another output of electric ballast simultaneously, and the input of electric ballast is connected to and exchanges the AC input.In the specific implementation, when exchanging AC input incoming transport electricity, the inductance L 1 of present embodiment, capacitor C 5, inductance L 2, capacitor C 6, inductance L 3 and inductance L 4 will be regulated the high frequency voltage of electric ballast output, so that the circuit parameter between input pin 1, pin 2, pin 3 and the pin 4 mates fully with the parameter of lighting the LED fluorescent lamp, when not changing primary electron ballast fluorescent lamp circuit, normally the LED lamp is lighted to be implemented in.

Shown in figure 32, it replaces the circuit T1 that constant current or constant voltage are provided shown in Figure 17 with power supply driver.In the specific implementation, when adopting daylight lamp circuit shown in Figure 32, its mode that inserts the electric ballast fluorescent lamp circuit is identical with the connecting circuit of Figure 18, Figure 14, does not give unnecessary details at this.

In addition, shown in Figure 33 (having removed capacitor C 1 and capacitor C 2 among Figure 32), can also on the basis of daylight lamp circuit shown in Figure 32, increase the series circuit that forms by resistance R x and starter S1.The effect of Rx among Figure 33 and starter S1 with and alternative elements and Figure 27 similar, do not give unnecessary details at this.

The another kind of LED fluorescent lamp that the utility model provides, comprise the LED fluorescent tube, described LED fluorescent tube comprises first end cap and second end cap, described first end cap and described second end cap comprise two pins respectively, in described LED fluorescent tube inside, between two pins of described first end cap, be parallel with the circuit that the series connection of the 3rd inductance and first switch element forms, the circuit and first bridge rectifier that first electric capacity and the series connection of first resistance form, between two pins of described second end cap, be parallel with the circuit that the series connection of the 4th inductance and second switch element forms, the circuit and second bridge rectifier that second electric capacity and the series connection of second resistance form, and wherein be in series with first inductance between the pin at the wherein pin of described first end cap and described second end cap, between another pin of another pin of described first end cap and described second end cap, be in series with second inductance, the output parallel connection LED lamp group of described first bridge rectifier and described second bridge rectifier, described LED lamp group comprise the led light source group and are used for providing the circuit of constant current or constant voltage to described led light source group.In the specific implementation, described switch element original state is an off-state.In the specific implementation, described first switch element and described second switch element can be in controllable silicon, photoelectrical coupler, relay and the transistor any.When described first switch element and/or described second switch element are controllable silicon, described silicon controlled trigger end as first switch element is connected on the connecting line between described first electric capacity and described first resistance, and described silicon controlled trigger end as the second switch element is connected on the connecting line between described second electric capacity and described second resistance.In the specific implementation, when the circuit that constant current or constant voltage are provided adopts in resistance, the transistor any, the internal circuit configuration of this LED fluorescent lamp can be as shown in figure 19, and when the circuit that constant current or constant voltage are provided adopted power supply driver, this LED fluorescent lamp internal circuit configuration can be as Figure 34 and shown in Figure 35.

As shown in figure 19, the internal circuit of LED fluorescent lamp of the present utility model can be on the basis of circuit shown in Figure 15, between inductance L 1 and pin 2, be connected in series a controllable silicon T2, the trigger end G of described controllable silicon T2 is connected between capacitor C 3 and the resistance R 3, be connected in series a controllable silicon T3 between inductance L 2 and pin 4, the trigger end G of described silicon controlled T3 is connected between capacitor C 4 and the resistance R 4.The function that circuit shown in Figure 19 and circuit shown in Figure 9 are realized is basic identical, and it still can directly be linked in the conventional electronic ballast fluorescent lamp circuit shown in Figure 1.After effective cooperation of present embodiment by inductance L 1, capacitor C 3, resistance R 3, inductance L 2, capacitor C 4, resistance R 4, controllable silicon T2, controllable silicon T3, inductance L 3, inductance L 4, the Inductive ballast in the conventional fluorescent circuit for lamp or the output characteristics of electric ballast and the input characteristics of LED fluorescent lamp are mated more, improve the illumination effect of LED fluorescent lamp, strengthen the stability of entire circuit.

Figure 20 is that LED daylight lamp circuit shown in Figure 19 is connected to the electrical block diagram in the electric ballast fluorescent lamp peripheral circuit of Fig. 1.Simultaneously, Figure 20 has also formed the structural representation of the 5th embodiment of fluorescent lamps connected connection circuit of the present utility model.As shown in figure 20, when the LED daylight lamp circuit among Figure 19 being connected in the electric ballast fluorescent lamp peripheral circuit shown in Figure 1, an output, pin 3, the pin 4 that the pin 1 of LED fluorescent lamp and pin 2 are connected to electric ballast simultaneously is connected to another output of electric ballast simultaneously, and the input of electric ballast is connected to and exchanges the AC input.

In the specific implementation, when exchanging AC input incoming transport electricity, through exporting high-frequency alternating current (about 40KHZ) after the electric ballast, this high-frequency alternating current is imported respectively from pin 1, pin 2, pin 3 and pin 4, and the capacitive reactance of the high-frequency alternating current of

capacitor C

3 and 4 pairs of inputs of capacitor C will diminish.According to electrician's knowledge as can be known, when capacitance one timing, incoming frequency is high more, the capacitive reactance that electric capacity produces is more little, therefore, and in the present embodiment, therefore under the effect of high-frequency alternating current, capacitor C 3 and capacitor C 4 show less capacitive reactance, and bigger electric current flow through resistance R 3 and resistance R 4 can be arranged.Present embodiment can pass through the capacity of appropriate design capacitor C 3, capacitor C 4 and the resistance of appropriate design resistance R 3 and resistance R 4, makes it under the situation that receives the high-frequency alternating current input, and controllable silicon T2 and controllable silicon T3 are become conducting state by off-state.And present embodiment is when controllable silicon T2 and controllable silicon T3 conducting, and this embodiment promptly is equivalent to the circuit of the 3rd embodiment shown in Figure 15.

Accordingly, the LED fluorescent lamp in the present embodiment also can directly insert in the electric ballast fluorescent lamp circuit shown in Figure 13, and its access way is identical with Figure 14, does not give unnecessary details at this.

As shown in figure 34, it replaces the circuit T1 that constant current or constant voltage are provided shown in Figure 19 with power supply driver.In the specific implementation, when adopting daylight lamp circuit shown in Figure 34, its mode that inserts the electric ballast fluorescent lamp circuit and Figure 20, connecting circuit shown in Figure 14 are identical, do not give unnecessary details at this.

In addition, shown in Figure 35 (having removed capacitor C 1 and capacitor C 2 among Figure 34), can also on the basis of daylight lamp circuit shown in Figure 34, increase the series circuit that forms by resistance R x and starter S1.The effect of Rx among Figure 35 and starter S1 with and alternative elements and Figure 27 similar, do not give unnecessary details at this.

The another kind of LED fluorescent lamp that the utility model provides, comprise the LED fluorescent tube, described LED fluorescent tube comprises first end cap and second end cap, described first end cap and described second end cap comprise two pins respectively, in described LED fluorescent tube inside, between two pins of described first end cap, be parallel with the 3rd inductance, the circuit that the 3rd electric capacity and the first switch element three connect and form, the circuit and first bridge rectifier that first electric capacity and first resistance are connected and formed, between two pins of described second end cap, be parallel with the 4th inductance, the circuit that the 4th electric capacity and second switch element three connect and form, the circuit and second bridge rectifier that second electric capacity and second resistance are connected and formed, and wherein be in series with first inductance between the pin at the wherein pin of described first end cap and described second end cap, between another pin of another pin of described first end cap and described second end cap, be in series with second inductance, the output parallel connection LED lamp group of described first bridge rectifier and described second bridge rectifier, described LED lamp group comprise the led light source group and are used for providing the circuit of constant current or constant voltage to described led light source group.In the specific implementation, described switch element original state is an off-state.In the specific implementation, described first switch element and described second switch element can be in controllable silicon, photoelectrical coupler, relay and the transistor any.When described first switch element and/or described second switch element are controllable silicon, described silicon controlled trigger end as first switch element is connected on the connecting line between described the 3rd electric capacity and described the 3rd resistance, and described silicon controlled trigger end as the second switch element is connected on the connecting line between described the 4th electric capacity and described the 4th resistance.In the specific implementation, when the circuit that constant current or constant voltage are provided adopts in resistance, the transistor any, the internal circuit configuration of this LED fluorescent lamp can be as shown in figure 21, and when the circuit that constant current or constant voltage are provided adopted power supply driver, this LED fluorescent lamp internal circuit configuration can be as Figure 36 and shown in Figure 37.

As Figure 21, the internal circuit of LED fluorescent lamp of the present utility model can be on the basis of circuit shown in Figure 19, series connection one capacitor C 7 between inductance L 1 and controllable silicon T2, series connection one capacitor C 8 between inductance L 2 and controllable silicon T3.The effect of capacitor C 7 and capacitor C 8 also is a coupling of further improving the input characteristics of the output characteristics of Inductive ballast or electric ballast and LED fluorescent lamp.The function that circuit shown in Figure 21 and circuit shown in Figure 9 are realized is basic identical, and it still can directly be linked in the conventional electronic ballast fluorescent lamp circuit shown in Figure 1.

Figure 22 is that LED daylight lamp circuit shown in Figure 21 is connected to the electrical block diagram in the electric ballast fluorescent lamp peripheral circuit of Fig. 1.Simultaneously, Figure 22 has also formed the structural representation of the 6th embodiment of fluorescent lamps connected connection circuit of the present utility model.As shown in figure 22, when the LED daylight lamp circuit among Figure 21 being connected in the electric ballast fluorescent lamp peripheral circuit shown in Figure 1, an output, pin 3, the pin 4 that the pin 1 of LED fluorescent lamp and pin 2 are connected to electric ballast simultaneously is connected to another output of electric ballast simultaneously, and the input of electric ballast is connected to and exchanges the AC input.

Accordingly, the LED fluorescent lamp of present embodiment also can directly insert in the electric ballast fluorescent lamp circuit shown in Figure 13, and its access way is identical with Figure 14, does not give unnecessary details at this.

As shown in figure 36, it replaces the circuit T1 that constant current or constant voltage are provided shown in Figure 21 with power supply driver.In the specific implementation, when adopting daylight lamp circuit shown in Figure 36, its mode that inserts the electric ballast fluorescent lamp circuit and Figure 22 and connecting circuit shown in Figure 14 are identical, do not give unnecessary details at this.

In addition, shown in Figure 37 (having removed capacitor C 1 and capacitor C 2 among Figure 36), can also on the basis of daylight lamp circuit shown in Figure 36, increase the series circuit that forms by resistance R x and starter S1.The effect of Rx among Figure 37 and starter S1 with and alternative elements and Figure 27 similar, do not give unnecessary details at this.

The another kind of LED fluorescent lamp that the utility model provides, comprise the LED fluorescent tube, described LED fluorescent tube comprises first end cap and second end cap, described first end cap and described second end cap comprise two pins respectively, in described LED fluorescent tube inside, be parallel with the 4th inductance and second bridge rectifier being parallel with between two pins of described first end cap between the 3rd inductance and first bridge rectifier and two pins at described second end cap, and wherein be in series with first inductance and the 7th electric capacity between the pin at the wherein pin of described first end cap and described second end cap, between another pin of another pin of described first end cap and described second end cap, be in series with second inductance and the 8th electric capacity, the output parallel connection LED lamp group of described first bridge rectifier and described second bridge rectifier, described LED lamp group comprise the led light source group and are used for providing the circuit of constant current or constant voltage to described led light source group.Provide the circuit of constant current or constant voltage to can be in resistance, transistor and the LED power supply driver any in the specific implementation.In the specific implementation, when the circuit that constant current or constant voltage are provided adopts in resistance, the transistor any, the internal circuit configuration of this LED fluorescent lamp can be as shown in figure 30, and when the circuit that constant current or constant voltage are provided adopted power supply driver, this LED fluorescent lamp internal circuit configuration can be as shown in figure 43.

The purpose of introducing the 7th electric capacity and the 8th electric capacity in the present embodiment also is better the Inductive ballast in traditional Inductive ballast fluorescent lamp circuit and the traditional electric ballast fluorescent lamp circuit and the output characteristics of electric ballast and the input characteristics of LED daylight are mated.

As shown in figure 23, on the basis of Figure 11, series capacitance C9 after inductance L 3, series capacitance C10 after the inductance L 4.

Figure 24 is that LED daylight lamp circuit shown in Figure 23 is connected to the electrical block diagram in the electric ballast fluorescent lamp peripheral circuit of Fig. 1.Simultaneously, Figure 24 has also formed the structural representation of the 7th embodiment of fluorescent lamps connected connection circuit of the present utility model.As shown in figure 24, when the LED daylight lamp circuit among Figure 23 being connected in Fig. 1 electric ballast fluorescent lamp peripheral circuit, the pin 1 of LED fluorescent lamp, pin 2, pin 3 and pin 4 are connected to the output of electric ballast, the input of electric ballast is connected to and exchanges the AC input, in the specific implementation, when exchanging AC input incoming transport electricity, present embodiment is by inductance L 1, inductance L 2, inductance L 3, inductance L 4, after effective cooperation of capacitor C 9 and capacitor C 10, so that input pin 1, pin 2, circuit parameter between pin 3 and the pin 4 mates fully with the parameter of lighting the LED fluorescent lamp, when not changing primary electron ballast fluorescent lamp circuit, normally the LED lamp is lighted to be implemented in.

In addition, as shown in figure 25, LED daylight lamp circuit shown in Figure 23 also can be connected in traditional Inductive ballast fluorescent lamp peripheral circuit.Specifically as shown in figure 25, when LED daylight lamp circuit shown in Figure 23 being connected in traditional Inductive ballast fluorescent lamp peripheral circuit, the pin 1 of LED daylight lamp circuit is connected to Inductive ballast L in the fluorescent lamp peripheral circuit and exchanges the AC input, the pin 3 of LED daylight lamp circuit is connected the output of described Inductive ballast, the pin 2 of LED daylight lamp circuit and pin 4 are connected on the starter base Y in the fluorescent lamp peripheral circuit, as shown in figure 25, do not connect starter on the described starter base Y.As shown in Figure 25, when receiving in the fluorescent lamp peripheral circuit, do not change the circuit structure of former fluorescent lamp peripheral circuit with LED shown in Figure 23 is fluorescent lamps connected.

In addition, removing circuit shown in Figure 11 can transform according to the circuit mode of Figure 23, increase beyond capacitor C 9 and the capacitor C 10, the embodiment that other do not comprise capacitor C 9 and capacitor C 10 provided by the utility model all can increase capacitor C 9 and capacitor C 10 according to Figure 11 mode identical with Figure 23, and these increases have the embodiment of capacitor C 9 and capacitor C 10 not give unnecessary details at this.

Replace circuit T1 (having removed capacitor C 1 and the capacitor C 2 among Figure 23) among Figure 23 with the LED power supply driver among Figure 38, and the output Rx in parallel of first bridge rectifier that forms at Q1-Q4 and the series circuit that S1 forms.The effect of Rx among Figure 38 and starter S1 with and alternative elements and Figure 27 similar, do not give unnecessary details at this.

In the specific implementation, do not comprise among the embodiment of LED fluorescent lamp of described the 7th electric capacity and described the 8th electric capacity at the utility model, also can the output of described first inductance and with pin that described output links to each other between series connection the 4th switch element, the output of described second inductance and with pin that described output links to each other between the 5th switch element of connecting.Like this, the LED fluorescent lamp of the utility model embodiment not only can insert in the conventional fluorescent circuit for lamp, and it also can directly insert civil power.When the LED fluorescent lamp that comprises the 4th switch and the 5th switch directly inserts civil power, described the 4th switch and the 5th switch will be in off-state, and when the LED fluorescent lamp that comprises the 4th switch and the 5th switch inserted in the conventional fluorescent circuit for lamp shown in Figure 1, described the 4th switch and described the 5th switch all should be closed.Figure 39 shows the structural representation of Figure 37 band the 4th switch and the 5th switch.Concrete, as shown in figure 39, tandem tap K1 between inductance L 3 and pin 3, tandem tap K2 between inductance L 4 and pin 4.In other embodiment of the utility model LED fluorescent lamp, position and the present embodiment of K1 and K2 are similar, do not give unnecessary details at this.

Figure 40 promptly is a kind of connecting circuit schematic diagram that LED fluorescent lamp internal circuit shown in Figure 21 directly inserts civil power.As shown in figure 40, exchanging the AC input inserts simultaneously from the two ends of LED fluorescent lamp, wherein the pin 1 of LED fluorescent lamp and pin 2 are connected to an end of AC input simultaneously, and pin 3 and pin 4 are connected to the other end of AC input simultaneously, and K switch 1 and K switch 2 all are in off-state in Figure 40.Figure 41 is the another kind of connecting circuit schematic diagram that LED fluorescent lamp internal circuit shown in Figure 21 directly inserts civil power.As shown in figure 41, exchange the AC input and insert simultaneously from the two ends of LED fluorescent lamp, wherein the pin 1 of LED fluorescent lamp and pin 3 are vacant, and pin 2 and pin 4 are connected respectively to the two ends of AC input, same, K switch 1 and K switch 2 all are in off-state in Figure 41.Figure 42 is another connecting circuit schematic diagram that LED fluorescent lamp internal circuit shown in Figure 21 directly inserts civil power.As shown in figure 42, exchange the AC input and go into from a termination of LED fluorescent lamp, the other end of LED fluorescent lamp is vacant, concrete, exchange the AC input and insert, and pin 3 and pin 4 are vacant from pin 1 and pin 2, same, K switch 1 and K switch 2 all are in off-state in Figure 42.Figure 43 is another connecting circuit schematic diagram that LED fluorescent lamp internal circuit shown in Figure 21 directly inserts civil power.As shown in figure 43, two groups of two ends accesses that exchange the AC input from the LED fluorescent lamp, wherein one group of AC input inserts from pin 1 and pin 2, and another group AC input inserts from pin 3 and pin 4, same, K switch 1 and K switch 2 all are in off-state in Figure 43.Certainly, other embodiment of the utility model LED fluorescent lamp also can directly insert civil power, and the mode that other embodiment insert civil power is similar to mode shown in Figure 43 to Figure 40, does not give unnecessary details at this.

Above disclosed only is the utility model preferred embodiment, can not limit the interest field of the utility model certainly with this, and therefore the equivalent variations of being done according to the utility model claim still belongs to the scope that the utility model is contained.

Claims

1. LED fluorescent lamp, it is characterized in that, comprise the LED fluorescent tube, described LED fluorescent tube comprises first end cap and second end cap, described first end cap and described second end cap comprise two pins respectively, in described LED fluorescent tube inside, be parallel with second bridge rectifier being parallel with between two pins of described first end cap between first bridge rectifier and two pins at described second end cap, and between a pin of pin of described first end cap and described second end cap, be in series with first inductance, between another pin of another pin of described first end cap and described second end cap, be in series with second inductance, the output parallel connection LED lamp group of described first bridge rectifier and described second bridge rectifier, described LED lamp group comprise the led light source group and are used for providing the circuit of constant current or constant voltage to described led light source group.

2. LED fluorescent lamp as claimed in claim 1 is characterized in that,

Before described first bridge rectifier, be parallel with the 3rd inductance between two pins of described first end cap;

3. LED fluorescent lamp as claimed in claim 2 is characterized in that,

After described the 3rd inductance, before described first bridge rectifier, also be parallel with the circuit that forms by first electric capacity and the series connection of first resistance between two pins of described first end cap;

4. LED fluorescent lamp as claimed in claim 2 is characterized in that,

The output of described the 3rd inductance and with pin that described output links to each other between series connection the 5th electric capacity;

5. LED fluorescent lamp as claimed in claim 3 is characterized in that,

The output of described the 3rd inductance and with pin that described output links to each other between series connection one to make described the 3rd inductance original state be first switch element of off-state;

The output of described the 4th inductance and with pin that described output links to each other between series connection one to make described the 4th inductance original state be the second switch element of off-state.

6. LED fluorescent lamp as claimed in claim 5 is characterized in that,

Between described the 3rd inductance and described first switch element, also be in series with the 3rd electric capacity;

7. LED fluorescent lamp as claimed in claim 5 is characterized in that,

Described first switch element and described second switch element be in controllable silicon, photoelectrical coupler, relay and the transistor any;

8. LED fluorescent lamp as claimed in claim 1 is characterized in that,

The output of described first inductance and with pin that described output links to each other between series connection the 7th electric capacity;

The output of described second inductance and with pin that described output links to each other between series connection the 8th electric capacity.

9. as each described LED fluorescent lamp among the claim 1-7, it is characterized in that, described be used for to described led light source group provide the circuit of constant current or constant voltage be resistance, transistor, LED power supply driver any.

10. LED fluorescent lamp as claimed in claim 9, it is characterized in that, when described when being used for providing the circuit of constant current or constant voltage to be the LED power supply driver to described led light source group, at the front end of described LED lamp group, the output of described first bridge rectifier also is parallel with the circuit of the 5th resistance and the 3rd switch element series connection formation.

11. LED fluorescent lamp as claimed in claim 10 is characterized in that, described the 3rd switch element comprises in starter, controllable silicon, triode, relay, the Zener diode any.

12. as each described LED fluorescent lamp among the claim 1-7, it is characterized in that, at the two ends of described LED lamp group, the output of described first bridge rectifier is parallel with first filter capacitor, and the output of described second bridge rectifier is parallel with second filter capacitor.

13. as each described LED fluorescent lamp among the claim 1-7, it is characterized in that,

The output of described first inductance and with pin that described output links to each other between series connection the 4th switch element;

14. fluorescent lamps connected connection circuit, comprise the electric ballast in the fluorescent lamp circuit, it is characterized in that, also comprise as each described LED fluorescent lamp among the claim 1-8, two inputs of described electric ballast are connected to the two ends that exchange input, two pins on first end cap of described fluorescent lamp is connected first output of described electron rectifier simultaneously, and the two pins on second end cap of described fluorescent lamp is connected second output of described electron rectifier at the same time.