WO2013078713A1

WO2013078713A1 - Led daylight lamp capable of directly replacing fluorescent lamp

Info

Publication number: WO2013078713A1
Application number: PCT/CN2011/083563
Authority: WO
Inventors: 徐慧
Original assignee: Xu Hui
Priority date: 2011-11-30
Filing date: 2011-12-06
Publication date: 2013-06-06
Also published as: CN202327754U

Abstract

An LED daylight lamp device capable of directly replacing a fluorescent lamp comprises a lamp tube (1), end covers (2), and an external LED power supply (14). The end covers (2) are respectively disposed at two ends of the lamp tube (1). The external LED power supply (14) is electrically connected to the lamp tube (1). Two terminals (3) are disposed on each end cover (2), and internal ends of the two terminals (3) disposed on the same end cover (2) are mutually shorted through a conductive member (4). A DC input end (5) is further disposed on the lamp tube (1). A starter interface terminal (16) and a DC output end (18) are disposed on the external LED power supply (14). The DC output end (18) is electrically connected to the DC input end (5) in a removable manner through a power line (20). The external LED power supply (14) can be directly mounted at the position of the original starter, and fit an interface of the original starter. The lamp tube (1) can be directly mounted at the position of the original fluorescent lamp. Therefore, the LED power supply (14) and the lamp tube (1) can be fast replaced without changing any circuit. In addition, as the LED power supply (14) is externally provided, the LED daylight lamp easily meets the safety regulations and standards, and the light quality is high.

Description

LED fluorescent lamp that can directly replace fluorescent lamps

Technical field

The utility model relates to the technical field of illumination, in particular to an LED fluorescent lamp which can be directly used instead of a fluorescent lamp.

Background technique

LED fluorescent lamps use light-emitting diodes as a light source, which is more efficient, more energy efficient, longer lasting, and more environmentally friendly. LED fluorescent lamps can save up to 70% of electricity and have a lifespan of more than 10 times that of ordinary lamps. It has become the most ideal product to replace fluorescent tubes at this stage.

In the prior art, as shown in Fig. 5, almost all LED fluorescent lamps on the market are LED fluorescent lamps 22 with built-in power. The so-called built-in power supply means that the power is placed inside the lamp. The biggest advantage of this built-in type is that it can be used to directly replace existing fluorescent tubes without any modification to the original circuit.

For example: Chinese utility model patent No. 201 120020876. 4 discloses "an LED lamp with a starter", and its technical solution includes an LED lamp tube and an LED starter, and each end of the LED tube is provided. There are two terminals, two terminals on one end of the LED tube are short-circuited, and the two terminals on the other end are discrete terminals, one of which is used to connect with one power supply line, and the other is connected to the LED starter. One shorted terminal is connected, and the other shorted terminal is connected to another power incoming line. Both the LED tube and the LED starter are mounted on the two-terminal type lamp holder. The LED lamp with the starter can be compatible with the traditional two-end type lamp holder. The above-mentioned LED lamp adopts the built-in power supply.

However, this type of built-in LED fluorescent lamp has the following defects: (1) It is difficult to replace the power supply. The service life of the LED is much longer than the service life of the power supply. If the power supply is broken, directly replacing the entire LED fluorescent lamp will result in great waste. If only the power supply is replaced, it is necessary to rely on the professional to disassemble and replace the circuit; (2) affecting the LED illumination the quality of. The heat emitted makes the LED fluorescent lamp In the process of use, glare, shadow and light are not evenly soft and so on; (3) poor heat dissipation. Since the power supply is built-in, the heat of the power supply is added to the lamp, which makes the heat dissipation of the LED more difficult and shortens the service life of the LED. (4) The recycling cost is high, and the built-in power supply also increases the recycling of electronic waste. The cost of processing, because the power supply must be removed and processed separately; (5) It is difficult to meet the safety standards. Due to the built-in power supply, it has a great impact on meeting safety standards.

Due to the above drawbacks of the LED fluorescent lamp with built-in power supply, an LED fluorescent lamp with an external power supply was invented.

For example, the Chinese utility model patent with the application number 200920134372. 8 discloses "an LED fluorescent lamp with an external LED power supply", the structure thereof comprises an LED fluorescent lamp body, and an external LED power source is connected to the LED fluorescent lamp body, The external LED power supply includes a PCB circuit board, input and output terminals, and a power supply box. The PCB circuit board is built in the power supply box, and the input terminal is connected to the LED fluorescent body through the PCB circuit board and the output terminal. The LED fluorescent lamp of the external LED power supply solves some defects of the built-in power LED fluorescent lamp, but since the power supply installation needs to change the original circuit, it can be fixed on the lamp board of the traditional fluorescent lamp, and needs to be changed again. The original lamp board circuit structure.

Utility model content

The purpose of the utility model is to avoid the deficiencies in the prior art and provide an LED fluorescent lamp which can be directly used instead of the fluorescent lamp, can be directly installed in the position of the original fluorescent lamp, does not need to change any circuit, can be easily and quickly replaced, and is convenient and practical. The power supply is externally placed to achieve no glare, no shadow and uniform light. When one end is energized, the other end is absolutely safe to touch by hand; the heat of the power is radiated from the outside of the light, which reduces the heat dissipation of the lamp and extends the lamp. The service life; it also saves recycling costs and easily meets safety standards.

The object of the present invention is achieved by the following technical solutions.

An LED fluorescent lamp which can be used directly for replacing a fluorescent lamp, comprising a lamp tube, an end cover and an external type LED power supply, wherein the end caps are respectively disposed at two ends of the lamp tube, and the external type LED power source and The lamp tube is electrically connected, the end cover is provided with two terminals, and the terminal includes An inner end disposed on an inner side of the end cover and an outer end disposed on an outer side of the end cover are disposed between the inner ends of the two terminals of the same end cover by a conductive member, and the lamp tube is disposed There is a DC input.

Preferably, the inner ends of the two terminals disposed on the same end cover are short-circuited by the conductive sheets. In another preferred embodiment, the lamp tube comprises a heat dissipating body and a lamp cover, and the heat dissipating body and the lamp cover are connected to each other to form a hollow cylindrical lamp tube.

More preferably, the heat sink and the lamp cover are fastened to each other to form a hollow cylindrical lamp tube. Further, the heat dissipating body is provided with a groove, and the lamp cover is provided with a rib, and the rib is cooperatively connected with the groove.

Preferably, the heat sink is uniformly provided with a heat sink.

In another preferred embodiment, the lamp tube includes an LED light source assembly, and the hollow cylindrical lamp tube is provided with a substrate, and two ends of the substrate are respectively connected to the heat sink, and the LED light source assembly is disposed at the The substrate, the LED light source assembly is electrically connected to the DC input terminal.

More preferably, the substrate is provided with a fixing buckle.

In another preferred mode, the external LED power supply is electrically connected to the DC input terminal.

More preferably, the external type LED power supply is an external type LED power supply having a starter interface terminal, and the external type LED power supply having a starter interface terminal includes an LED power supply circuit and the LED power supply The two starter interface terminals and the insulative housing are electrically connected to the circuit, the LED power supply circuit is disposed inside the insulative housing, and the LED power supply circuit is electrically connected to one end of the two starter interface terminals, The LED power supply circuit is connected with a DC output end, the insulating housing is provided with a through hole, the DC output end is connected with an output power line, and the output power line is electrically connected to the DC input through the through hole. .

The beneficial effects of the utility model are as follows:

The LED fluorescent lamp which can directly replace the fluorescent lamp of the utility model comprises a lamp tube, an end cover and an external type LED power supply, and the end cover is respectively disposed at two ends of the lamp tube, and the external type LED power source and the lamp tube Electrical connection, the end cover is provided with two terminals, the terminal comprises an inner end disposed on the inner side of the end cover and an outer end disposed on the outer side of the end cover, disposed between the inner ends of the two terminals of the same end cover The short tube of the conductive member is provided with a DC input terminal.

Compared with the prior art, the LED fluorescent lamp which can directly replace the fluorescent lamp of the utility model can be directly installed in the position of the original fluorescent lamp, does not need to change any circuit, can be easily and quickly replaced, is convenient and practical; It can achieve no glare, no shadow and uniform light and softness; when one end is energized, the other end is absolutely safe to touch by hand; the heat of the power source is radiated from the outside of the light, which reduces the heat dissipation burden of the lamp and prolongs the service life of the lamp; Save on recycling costs and easily meet safety standards.

DRAWINGS

The present invention will be further described with reference to the drawings, but the contents of the drawings do not constitute any limitation to the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing the structure of a lamp tube of an LED fluorescent lamp which can directly replace a fluorescent lamp of the present invention.

Fig. 2 is a schematic view showing the circuit structure of an LED fluorescent lamp which can directly replace the fluorescent lamp of the present invention.

Fig. 3 is a structural schematic view showing a cross section of an LED fluorescent lamp which can be used in place of a fluorescent lamp in Fig. 1.

4 is a schematic view showing the circuit structure of a fluorescent lamp of the prior art.

FIG. 5 is a schematic diagram showing the circuit structure of a prior art LED fluorescent lamp with built-in power supply.

Included in Figures 1 through 5 are:

Lamp 1 ;

Stand up and cover 2;

Terminal 3 ;

Conductive member 4 ;

DC input 5 ;

Heat sink 6 ;

Shade 7 ; Groove 8;

Rib 9

Heat sink 10;

LED light source assembly 11;

Substrate 12;

Fixed buckle 13;

An external type LED power supply 14 having a starter interface terminal;

LED power circuit 15;

Starter interface terminal 16;

Outer casing 17;

DC output terminal 18;

Through hole 19;

Output power line 20;

Fluorescent lamp 21;

LED fluorescent light with built-in power supply 22.

detailed description

The present invention will be further described in conjunction with the following examples.

Example 1.

The specific implementation method of the LED fluorescent lamp which can directly replace the fluorescent lamp of the utility model

One, as shown in FIG. 1 to FIG. 5, comprises a lamp tube 1, an end cover 2 and an external type LED power supply, and the end cover 2 is respectively disposed at both ends of the lamp tube 1, and the external type LED power supply and the lamp The tube 1 is electrically connected, and the end cover 2 is provided with two terminals 3, and the terminal 3 includes an inner end disposed on the inner side of the end cover 2 and an outer end disposed on the outer side of the end cover 2, and two terminals 3 disposed on the same end cover The inner ends are shorted by a conductive member 4 provided with a DC input terminal 5.

The LED fluorescent lamp of the utility model can directly replace the fluorescent lamp, can be directly installed on The position of the original fluorescent lamp 21 does not need to change any circuit, and can be easily and quickly replaced, which is convenient and practical; the external power supply can realize no glare, no shadow and uniform light and softness; when one end is energized, the other end is absolutely safe to touch by hand; The heat is dissipated from the outside of the lamp, which reduces the heat dissipation of the lamp 1 and prolongs the service life of the lamp 1; it also saves recycling costs and easily meets safety standards.

It should be noted that: only the two terminals 3 of the LED fluorescent lamp which can be directly used for replacing the fluorescent lamp are short-circuited, which is only suitable for the LED fluorescent lamp 22 with built-in power supply, as shown in FIG. 5, and the external power supply of the present invention. The LED fluorescent lamp device which can directly replace the fluorescent lamp can not form a circuit if the two terminals 3 of one end of the LED fluorescent lamp which can be used directly for replacing the fluorescent lamp are short-circuited.

Example 2.

The LED fluorescent lamp can be directly used in place of the fluorescent lamp. The other structure of this embodiment is the same as that of the first embodiment, except that: the inner ends of the two terminals 3 of the same end cover 2 are short-circuited by the conductive sheets. . The use of conductive sheets facilitates production and processing.

The lamp tube 1 includes a heat radiating body 6 and a lamp cover 7, and the heat radiating body 6 and the lamp cover 7 are connected to each other to form a hollow cylindrical lamp tube 1. The shape of the lamp tube 1 is substantially the same as that of the fluorescent lamp 21, and the original fluorescent lamp 21 lamp holder can be better matched.

The heat sink 6 is provided with a groove 8, and the lamp cover 7 is provided with a ridge 9, and the rib 9 is coupled with the groove 8. The fastening manner of the rib 9 and the groove 8 facilitates the installation and disassembly of the heat sink 6 and the lamp cover 7, and facilitates replacement or maintenance of the LED light source assembly 11 in the lamp tube 1. It should be noted that: other fastening methods can also be designed according to actual needs, and it is not limited to the use of the matching manner of the ribs 9 and the grooves 8.

The heat sink 6 is uniformly provided with the heat sink 10. The heat sink 10 is used to better dissipate heat for the LED light source assembly 11 to extend the life of the lamp 1.

The lamp tube 1 includes an LED light source assembly 11. The hollow cylindrical tube 1 is provided with a substrate 12, and two ends of the substrate 12 are respectively connected to the heat sink 6. The LED light source assembly 11 is disposed on the substrate 12, and the LED light source assembly 11 and the DC The input terminal 5 is electrically connected. The LED light source assembly 11 is placed on the heat sink 6 On the substrate 12, the heat generated when the LED light source unit 11 operates can be better dissipated. The LED light source assembly 11 is electrically coupled to the DC input terminal 5, and the external LED power source supplies power to the LED light source assembly 11 through the DC input terminal 5.

The substrate 12 is provided with a fixing buckle 13. The fixing buckle 13 is provided to better fix the LED light source assembly 11 to prevent it from shaking.

The external LED power supply is electrically connected to the DC input terminal 5. The external LED power supply can be powered by a new LED fluorescent lamp that can directly replace the fluorescent lamp.

Example 3.

An LED fluorescent lamp which can be used directly in place of a fluorescent lamp, the other structure of this embodiment is the same as that of the first embodiment, except that the heat radiating body 6 and the lamp cover 7 are fastened to each other to form a hollow cylindrical lamp tube 1. The fastening or the dismounting of the heat sink 6 and the lamp cover 7 is facilitated by the fastening method.

The external type LED power supply is an external type LED power supply 14 having a starter interface terminal, and the external type LED power supply 14 having a starter interface terminal includes an LED power supply circuit 15 and two electrically connected to the LED power supply circuit 15. The starter interface terminal 16 and the insulative housing, the LED power circuit 15 is disposed inside the insulative housing, the LED power circuit 15 is electrically connected to one end of the two starter interface terminals 16, and the LED power circuit 15 is connected to the DC output terminal 18 The insulative housing is provided with a through hole 19, and the DC output end 18 is connected with an output power line 20, and the output power line 20 is electrically connected to the DC input terminal 5 through the through hole 19.

One end of the two starter interface terminals 16 is disposed inside the sealing plate, and the other ends of the two starter interface terminals 16 are disposed outside the sealing plate. One ends of the two starter interface terminals 16 are disposed on the inner side of the sealing plate to facilitate connection with the LED power supply circuit 15; the other ends of the two starter interface terminals 16 are disposed on the outer side of the sealing plate, which is convenient for the lamp 1 connection.

The insulating case includes a case 17 having a cylindrical structure with a lower end opening and a sealing plate fixedly coupled to the case 17. The sealing plate is fixedly connected to the outer casing 17 so that the insulating outer casing has better insulation properties.

The sealing plate and the outer casing 17 can also be provided as a detachable connection. The sealing plate is detachably connected to the outer casing 17, and when the internal LED power supply circuit 15 is damaged, the LED power supply circuit 15 can be conveniently taken out. The outer casing 17 and the sealing plate can also be recycled to save energy.

Specifically, the detachable connection of the sealing plate to the outer casing 17 can be set in a snap-fit manner. It should be noted that: the sealing plate and the outer casing 17 can be connected by means of fastening, and other connection manners can be adopted according to actual needs.

In this embodiment, the original starter is replaced with an external type LED power supply 14 having a starter interface terminal, and the external type LED power supply 14 having the starter interface terminal is installed at the original starter position, and the same is used. The interface replaces the original fluorescent lamp 21 with the lamp tube 1, and does not change any line of the original fluorescent lamp 21, so that energy saving, no glare, no shadow and uniform light can be achieved; when one end is energized, the other end is touched by hand. Safety; The heat of the power source is radiated from the outside of the lamp, which reduces the heat dissipation of the lamp 1 and prolongs the service life of the lamp 1; it also saves the recovery cost and facilitates the installation and use of unexpected technical effects.

The external type LED power supply 14 with the starter interface terminal of the embodiment and the LED fluorescent lamp which can be used directly for replacing the fluorescent lamp are mounted on the light board, and the working principle thereof is as follows: Taking FIG. 2 as a reference picture, the power input L end and the One end of the terminal 3 at the lower left of the LED fluorescent lamp used directly in place of the fluorescent lamp is electrically connected, and the other end of the terminal 3 at the lower left of the LED fluorescent lamp which can be directly used instead of the fluorescent lamp is electrically connected to one end of the left conductive member 4, and the conductive member 4 on the left side The other end is electrically connected to one end of the terminal 3 at the upper left of the LED fluorescent lamp which can be used directly for replacing the fluorescent lamp, and can directly replace the other end of the terminal 3 at the upper left of the LED fluorescent lamp used for the fluorescent lamp and the external type LED having the starter interface terminal. One end of the power source 14 is electrically connected, and the other end of the external type LED power source 14 having the starter interface terminal is electrically connected to one end of the terminal 3 at the upper right of the LED fluorescent lamp which can directly replace the fluorescent lamp, and can directly replace the LED fluorescent lamp used for the fluorescent lamp. The other end of the terminal 3 on the upper right side is electrically connected to one end of the conductive member 4 on the right side, The other end of the side conductive member 4 is electrically connected to one end of the terminal 3 at the lower right side of the LED fluorescent lamp which can be used directly for replacing the fluorescent lamp, and can directly replace the other end of the terminal 3 at the lower right side of the LED fluorescent lamp used for the fluorescent lamp and the end of the ballast. Connected, the other end of the ballast is electrically connected to the power input N terminal.

Directly draw AC voltage from the grid to an external LED with a starter interface terminal The source 14 is outputted by the external type LED power supply 14 having the starter interface terminal, and outputs a low DC voltage. The DC output terminal 18 of the external LED power supply 14 having the starter interface terminal is connected to the Directly replacing the DC input 5 of the LED fluorescent lamp used in the fluorescent lamp, the external type LED power supply 14 having the starter interface terminal supplies the voltage to the LED neon lamp which can be used directly in place of the fluorescent lamp.

It should be noted that the above embodiments are only for explaining the technical solutions of the present invention and are not intended to limit the scope of the present invention. Although the present invention is described in detail with reference to the preferred embodiments, those skilled in the art should It is to be understood that the technical solutions of the present invention may be modified or equivalently substituted without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. An LED fluorescent lamp for directly replacing a fluorescent lamp, comprising a lamp tube, an end cover and an external type LED power supply, wherein the end caps are respectively disposed at two ends of the lamp tube, the external type LED The power supply is electrically connected to the lamp tube, and the end cover is provided with two terminals, and the terminal includes an inner end disposed on an inner side of the end cover and an outer end disposed on an outer side of the end cover. The inner ends of the two terminals disposed on the same end cover are short-circuited by a conductive member, and the lamp tube is provided with a DC input end.

2. The LED fluorescent lamp for use in direct replacement of a fluorescent lamp according to claim 1, wherein: the inner ends of the two terminals disposed on the same end cap are short-circuited by the conductive sheets.

3. The LED fluorescent lamp for directly replacing a fluorescent lamp according to claim 1, wherein: the lamp tube comprises a heat dissipating body and a lamp cover, and the heat dissipating body and the lamp cover are connected to each other to form a hollow cylindrical shape. Light tube.

4. The LED fluorescent lamp for directly replacing a fluorescent lamp according to claim 3, wherein: the heat dissipating body and the lamp cover are mutually fastened to form a hollow cylindrical lamp tube.

The LED fluorescent lamp for directly replacing the fluorescent lamp according to claim 4, wherein: the heat dissipating body is provided with a groove, the lamp cover is provided with a ridge, the ridge and the groove Match the connection.

6. The LED fluorescent lamp for directly replacing a fluorescent lamp according to claim 3, wherein: the heat dissipating body is uniformly provided with a heat sink.

The LED fluorescent lamp for directly replacing the fluorescent lamp according to claim 3, wherein: the lamp tube comprises an LED light source assembly, and the hollow cylindrical lamp tube is provided with a substrate, the substrate The two ends are respectively connected to the heat sink, the LED light source assembly is disposed on the substrate, and the LED light source assembly is electrically connected to the DC input end.

8. The LED fluorescent lamp for directly replacing a fluorescent lamp according to claim 7, wherein: the substrate is provided with a fixing buckle.

9. The LED fluorescent lamp for use in direct replacement of a fluorescent lamp according to claim 1, wherein: said external LED power supply is electrically connected to said DC input terminal.

The LED fluorescent lamp for directly replacing the fluorescent lamp according to claim 9, wherein the external LED power source is an external type LED power supply having a starter interface terminal, and the The external type LED power supply of the interface terminal includes an LED power supply circuit, two starter interface terminals and an insulative housing electrically connected to the LED power supply circuit, and the LED power supply circuit is disposed inside the insulating housing The LED power supply circuit is electrically connected to one end of the two starter interface terminals, the LED power supply circuit is connected with a DC output end, the insulating housing is provided with a through hole, and the DC output end is connected with an output power line The output power line is electrically connected to the DC input through the through hole.