TW201504570A - LED tube lamp and driving device thereof - Google Patents

Abstract

A LED tube lamp includes an elongated tube, a lighting module, a first cover, a second cover, and a driving device. The lighting module has a circuit board unit, a plurality of LEDs installed on the circuit board unit, and a connector installed on the circuit board unit. The first and the second covers are respectively installed on the opposite ends of the tube, and the second cover has an inserting hole. The driving device has a driving circuit board, a DC-DC convertor installed on the driving circuit board, and a filter installed on the driving circuit board. The DC-DC convertor electrically connects to the filter via the driving circuit board. The driving device is detachably installed to the connector via the inserting hole, so that the DC-DC convertor is electrically connected to the circuit board unit and the LEDs via the connector. Besides, the instant disclosure also provides the above driving device.

Description

LED lighting tube and its driving device

The invention relates to a lighting tube, and in particular to an LED lighting tube and a driving device thereof.

With the advancement of technology, LED lighting tubes with low power consumption and long life have gradually become the mainstream trend of lighting tubes, but there are still many problems to be solved in LED lighting tubes.

For example, a conventional LED lighting tube includes a circuit board on which a light emitting diode element is mounted, and opposite ends of the circuit board are respectively defined as a first end portion and a second end portion, and the circuit board is The first end is provided with an inductive filter, and the second end of the circuit board is provided with a rectifier and a DC transformer. Therefore, when the alternating current is input to the conventional LED lighting tube, the alternating current is transmitted to the rectifier on the second end via the first end of the circuit board, so that the alternating current is rectified by the rectifier to form a direct current; thereafter, the direct current is further The second end is transmitted to the inductive filter on the first end to remove the chopping portion of the direct current through the inductive filter; finally, the direct current is transmitted from the first end to the DC transformer on the second end In order to adjust the direct current to a voltage required for the light-emitting diode element through a DC transformer.

However, in the above design, since the inductive filter is easily damaged and is disposed on the circuit board, when the inductive filter is damaged, it is necessary to replace the conventional LED lighting tube in a complete group. In other words, if the inductive filter is damaged and cannot be operated, the replacement of the conventional LED lighting tube must also discard the remaining elements that have not been damaged. This will cause waste and is not environmentally friendly. Moreover, since the inductive filter is located on the opposite side of the rectifier and the DC transformer, the circuit layout of the circuit board of the conventional LED lighting tube is complicated, thereby increasing the production cost.

Therefore, the present inventors have felt that the above-mentioned deficiencies can be improved, and they have devoted themselves to research and cooperated with the application of the theory, and finally proposed a present invention which is reasonable in design and effective in improving the above-mentioned defects.

The embodiment of the invention provides an LED lighting tube and a driving device thereof, which are convenient for the user to replace the electronic component with high damage rate (such as an inductive filter), and can simplify the circuit layout on the circuit board unit.

An embodiment of the present invention provides an LED lighting tube, comprising: a tube body having a strip shape and at least a portion of the block for light to penetrate; a light emitting module comprising: a circuit board unit a tube body, and opposite end portions of the circuit board unit respectively pass through opposite ends of the tube body, and opposite ends of the circuit board unit are respectively defined as a first mounting block and a second mounting area a plurality of light emitting diode elements disposed on the circuit board unit portion of the tube body, and the light emitting diode elements are adapted to emit light to penetrate the tube body; and a connector The first mounting cover and the second end cover are respectively disposed at opposite ends of the pipe body, and the first mounting block is located at the second mounting block of the circuit board unit The second mounting block is located in a space surrounded by the second end cover, wherein the second end cover is formed with a plug hole, and the connector corresponds to the plug hole And can communicate with the outside through the insertion hole; and a driving device comprising: a driving a filter, which is disposed on the driving circuit board; and a DC transformer disposed on the driving circuit board, and the DC transformer is electrically connected to the filter through the driving circuit board; wherein the driving The device is detachably mounted to the connector via the insertion hole of the second end cover, and when the driving device is mounted on the connector, the driving The DC transformer of the device is electrically connected to the LED components via the connector and the circuit board unit.

Preferably, the driving device further includes a rectifier for converting alternating current into direct current, the rectifier is disposed on the driving circuit board, and the rectifier is electrically connected to the filter via the driving circuit board.

Preferably, the LED lighting tube further includes a protection module for reducing electromagnetic waves and radiation generated by the alternating current, and the protection module is disposed in the first installation block of the circuit board unit, and the protection module is The circuit board unit and the connector are electrically connected to the rectifier of the driving device.

Preferably, the current protection module has at least one of a common mode inductance, an X capacitance, and a Y capacitance.

Preferably, the driving circuit board is further defined as a mounting portion and a connecting portion, the filter, the DC transformer, and the rectifier are mounted on the mounting portion of the driving circuit board, and the driving device further comprises a protective housing The filter, the DC transformer, the rectifier, and the mounting portion of the driving circuit board are received in a space surrounded by the protective casing, and the connecting portion of the driving circuit board is exposed by the protective casing. Outside the space, the connecting portion is detachably mounted to the connector via the insertion hole of the second end cover.

Preferably, the cross-sectional shape of the outer edge of the protective casing is substantially equivalent to the shape surrounded by the second end cap insertion hole.

Preferably, the length of the first end cap corresponding to the longitudinal direction of the tubular body is substantially equal to the length of the second end cap corresponding to the longitudinal direction of the tubular body.

The embodiment of the present invention further provides a driving device for an LED lighting tube as described above, comprising: a driving circuit board; a filter disposed on the driving circuit board; and a DC transformer disposed on the driving circuit a board, and the DC transformer is electrically connected to the filter via the driving circuit board.

In summary, the structural design of the LED lighting tube and the driving device thereof provided by the embodiments of the present invention facilitates disassembly and assembly of the driving device, and the driving device integrates a filter, thereby, in the case of filter damage, Repairing the LED lighting tube by replacing the driving device, thereby invisibly increasing the service life of other components of the LED lighting tube (because the conventional LED lighting tube is completely discarded), and simultaneously achieving the requirement of reducing replacement cost and environmental protection.

Furthermore, the driving device of the embodiment of the present invention is provided with a filter and a DC transformer, thereby simplifying the circuit layout on the circuit board unit, so that the production efficiency and cost can be more in line with the manufacturer's benefit.

100‧‧‧LED lighting tube

1‧‧‧pipe body

2‧‧‧Lighting module

21‧‧‧Circuit unit

211‧‧‧First installation block

212‧‧‧Second installation block

22‧‧‧Lighting diode components

23‧‧‧Connector

3‧‧‧protection module

31‧‧‧Common mode inductance

32‧‧‧X capacitor

33‧‧‧Y capacitor

4‧‧‧First end cap

5‧‧‧Second end cap

51‧‧‧ Sockets

6‧‧‧ drive

61‧‧‧Drive circuit board

611‧‧‧Installation Department

612‧‧‧Connecting Department

62‧‧‧ Filter

63‧‧‧DC transformer

64‧‧‧Rectifier

65‧‧‧Wireless Receiver

651‧‧‧Switch unit

652‧‧‧ dimming unit

66‧‧‧Protection housing

200‧‧‧Remote control

C‧‧‧ center axis

1 is a perspective view of an LED lighting tube of the present invention.

2 is an exploded perspective view of the LED lighting tube of the present invention.

3 is a cross-sectional view showing the LED lighting tube of the present invention without a driving device.

4 is an exploded perspective view showing the driving device of the LED lighting tube of the present invention.

FIG. 5 is a schematic diagram showing the electrical connection relationship between the components of the LED lighting tube and the remote controller of the present invention.

The detailed description of the present invention and the accompanying drawings are to be understood by the claims The scope is subject to any restrictions.

Referring to FIG. 1 and FIG. 2, an embodiment of the present invention provides an LED lighting tube 100 suitable for wireless signal transmission with a remote controller 200 (FIG. 5). The LED lighting tube 100 is preferably adapted to be mounted on a conventional fluorescent lamp holder, but is not limited thereto. Furthermore, the LED lighting tube 100 can be unilateral (ie, one end of the LED lighting tube 100) electrically connected to the socket to which it is inserted, or the LED lighting tube 100 can be bilateral (ie, LED lighting tube) The opposite ends of 100 are electrically connected to the socket to which they are inserted.

It should be noted that, in the following, a preferred embodiment is used as a specific configuration description of the LED lighting tube 100. However, the LED lighting tube 100 is not limited to the following description in practical applications. Construction.

Referring to FIG. 3 to FIG. 5 , the LED lighting tube 100 includes a tube body 1 , a light emitting module 2 , a protection module 3 , a first end cover 4 , a second end cover 5 , and a driving device . Device 6. The light-emitting module 2 and the driving device 6 are two separate components that are detachable, and the driving device 6 is detachably assembled to the light-emitting module 2, so as to facilitate the user to set the electronic component with high damage rate to the driving device. Inside the device 6, it is easier to replace.

Specifically, the tubular body 1 is substantially elongated and tubular and at least partially blockable for light to pass through. For convenience of explanation, the tubular body 1 defines a central axis C parallel to the longitudinal direction thereof. Furthermore, since the pipe body 1 belongs to the old technology in the industry, the detailed structure of the pipe body 1 will not be described in detail herein. In other words, the pipe body 1 can be in various forms.

For example, the tube body 1 may be an integrally formed light-transmissive glass tube; or the tube body 1 may be a light-transmissive half-tube body (such as a semi-circular tube) and a non-transmissive half-tube body (such as : Semi-circular tubular) assembled. Among them, the light transmissive half pipe body material is preferably polycarbonate (PC), and the non-transmissive half pipe body material is preferably composed of a high thermal conductivity material (for example, metal materials such as aluminum, alumina, etc.) Ceramic material, or thermal plastic).

The light emitting module 2 includes a circuit board unit 21, a plurality of light emitting diode elements 22, and a connector 23. The circuit board unit 21 may be only one circuit board, or the circuit board unit 21 may include a plurality of circuit boards arranged in a row, which is not limited herein.

Furthermore, the circuit board unit 21 is disposed through the pipe body 1 due to the circuit board unit 21 The length of the central axis C is greater than the length of the tube body 1 corresponding to the central axis C, so the opposite end portions of the circuit board unit 21 (such as the left end and the right end of the circuit board unit 21 in FIG. 3) respectively pass through the tube body. The opposite ends of 1. The opposite ends of the circuit board unit 21 are defined as a first mounting block 211 and a second mounting block 212, respectively, and the length of the first mounting block 211 corresponding to the central axis C is substantially equal to the second mounting. Block 212 corresponds to the length of the central axis C.

The LED component 22 is disposed on the circuit board unit 21 in the tube body 1, that is, the first mounting block 211 and the second mounting block 212 are not provided with the LED component. 22, the light emitting diode elements 22 are located between the first mounting block 211 and the second mounting block 212, and the light emitting diode elements 22 are adapted to emit light to penetrate the tube body 1. Transparent part.

The connector 23 (eg, a socket connector) is mounted on the second mounting block 212 of the circuit board unit 21, and the connector 23 and the light emitting diode elements 22 are all mounted on the circuit board unit 21. Side panel surface (such as the board surface on the circuit board unit 21 in FIG. 3). In more detail, the direction in which the plug connector of the connector 23 faces is substantially perpendicular to the board surface of the circuit board unit 21, that is, the direction in which the connector 23 connector faces is substantially perpendicular to the center axis C.

The protection module 3 is configured to reduce electromagnetic waves and radiation generated by the alternating current, and the protection module 3 has a common mode inductor 31, an X capacitor 32, and a Y capacitor 33 in this embodiment, but in practical applications The protection module 3 may be at least one of a common mode inductor 31, an X capacitor 32, and a Y capacitor 33. Furthermore, the protection module 3 is disposed on the first mounting block 211 of the circuit board unit 21, so that the protection module 3 can be electrically connected to the driving device 6 via the circuit board unit 21 and the connector 23. The common mode inductor 31, the X capacitor 32, and the Y capacitor 33 are electronic components well known to those skilled in the art. Therefore, the common mode inductor 31, the X capacitor 32, and the Y are not described in detail in this embodiment. The detailed configuration of the capacitor 33.

The inner edges of the first end cover 4 and the second end cover 5 are substantially in the shape of a circular groove, and the first end cover 4 and the second end cover 5 are respectively disposed at opposite ends of the pipe body 1, and the circuit board unit 21 The first mounting block 211 and the protection module 3 mounted thereon are all located in the space surrounded by the first end cover 4, and the second mounting block 212 of the circuit board unit 21 and the connector mounted thereon 23 are all located in the space surrounded by the second end cover 5. Furthermore, the size of the first end cap 4 is substantially equal to the size of the second end cap 5, and in more detail, the length of the first end cap 4 corresponding to the longitudinal direction (or the central axis C) of the tubular body 1 is substantially equal. The second end cap 5 corresponds to the length in the longitudinal direction (or the central axis C) of the tubular body 1.

It should be noted that the second end cover 5 is formed with an insertion hole 51. The insertion interface of the connector 23 corresponds to the insertion hole 51 of the second end cover 5 and can communicate with the outside through the insertion hole 51. In addition, the end faces of the first end cover 4 and the second end cover 5 (ie, corresponding to the bottom position of the groove) are respectively provided with two terminals, and the terminals protrude from the first end cover 4 in a direction away from the pipe body 1. In addition to the second end cap 5, it can be attached to a conventional fluorescent lamp socket through the terminal.

That is, if the LED lighting tube 100 is electrically connected to the socket to which the LED lamp unit 100 is electrically connected, the terminal on the first end cover 4 is electrically connected to the first mounting block 211 of the circuit board unit 21. The terminal on the second end cover 5 is not in communication with the circuit board unit 21. If the LED lighting tube 100 is electrically connected to the socket of the circuit board unit 21, the terminals of the first end cover 4 and the second end cover 5 are electrically connected to the first mounting block 211 of the circuit board unit 21, respectively. And the second mounting block 212.

The driving device 6 includes a driving circuit board 61, a filter 62 (such as an inductive filter), a DC transformer 63, a rectifier 64 (such as a bridge rectifier), a wireless receiver 65, and a protection device. Housing 66.

The driving circuit board 61 is further defined as a mounting portion 611 and a connecting portion 612. The filter 62, the DC transformer 63, the rectifier 64, and the wireless receiver 65 are respectively mounted (eg, soldered) on the driving circuit board. The mounting portion 611 of 61. Furthermore, The filter 62, the DC transformer 63, the rectifier 64, the wireless receiver 65, and the mounting portion 611 of the driving circuit board 61 are all accommodated in the space surrounded by the protective casing 66, and the filter 62 and the DC transformer 63 are included. Preferably, the rectifier 64 and the wireless receiver 65 are respectively disposed on opposite surfaces of the mounting portion 611 of the driving circuit board 61, so as to properly utilize the space surrounded by the protective casing 66. The connecting portion 612 of the driving circuit board 61 is exposed outside the space surrounded by the protective casing 66, and the connecting portion 612 can be detachably mounted to the connector 23 via the insertion hole 51 of the second end cover 5, and The protective housing 66 of the drive unit 6 is at least partially located outside the space enclosed by the second end cover 5, so that the user can replace the drive unit 6.

In more detail, the connecting portion 612 of the above-described driving circuit board 61 is formed like a gold finger, thereby being inserted into the connector 23 such that the connecting portion 612 of the driving circuit board 61 is fixedly positioned at the connector 23. Furthermore, in another embodiment, the connecting portion 612 of the driving circuit board 61 can also be connected with a mating connector (such as a plug connector), so as to be inserted into the connector 23 through the mating connector. Complete the positioning of both. In addition, in the embodiment, the above-mentioned insertion setting mode is taken as an example, but in actual application, the positioning between the driving circuit board 61 and the connector 23 is not eliminated by fastening or screwing.

Further, the cross-sectional shape of the outer edge of the protective casing 66 is substantially equal to the shape surrounded by the insertion hole 51 of the second end cover 5, in other words, when the driving device 6 is mounted on the connector 23, the protective casing is protected. The outer edge of 66 substantially abuts against the edge of the insertion hole 51. The outer shape of the protective casing 66 is preferably cylindrical, but is not limited thereto. For example, the outer shape of the protective casing 66 may also be a triangular prism, a rectangular parallelepiped, or a square.

Furthermore, the outer edge of the protective casing 66 can be formed with a stud, and the insertion hole 51 is formed in a shape corresponding to the protective casing 66, so that the driving device 6 is installed in the connector 23, Corresponding to the protruding post of the protective housing 66 and the insertion hole 51 The effect of the foolproof effect is achieved, thereby avoiding damage to the drive unit 6 or the connector 23 due to an incorrect insertion angle. In addition, the foolproof design of the present embodiment is exemplified by the formation of the studs on the outer edge of the protective casing 66, but other foolproof modes are not excluded. For example, the outer edge of the protective casing 66 can be formed with a groove (not shown), and the insertion hole 51 is formed into a shape corresponding to the protective casing 66.

The electrical connection relationship between the components of the drive device 6 is roughly as follows. The filter 62, the DC transformer 63, the rectifier 64, and the wireless receiver 65 are all mounted on the driving circuit board 61. Therefore, the rectifier 64 is electrically connected to the filter 62 through the circuit design of the driving circuit board 61. The filter 62 is electrically connected to the DC transformer 63 and the DC transformer 63 is electrically connected to the wireless receiver 65. When the driving device 6 is installed in the connector 23, the rectifier 64 is electrically connected to the protection module 3 via the connector 23 and the circuit board unit 21, and the DC transformer 63 is electrically connected to the circuit board unit 21 via the connector 23. The light emitting diode elements 22 are connected to the light.

In addition, the driving device 6 can also be provided with a fuse (not shown) or a protective resistor (not shown), so that when some components of the driving module 6 are damaged, the fuse or the protective resistor can be set to avoid improper use. The current impinges on the light-emitting diode element 22, which in turn damages the light-emitting diode element 22. The position of the fuse or the protective resistor may be between the filter 62 and the DC transformer 63, but is not limited thereto.

The construction of the LED lighting tube 100 has been described above, and the operation flow of the LED lighting tube 100 will be generally described below. When the LED lighting tube 100 is mounted on the lamp holder with the terminals on the first end cover 4 and the second end cover 5, when the lamp holder transmits the alternating current to the protection mode via the terminal on the first end cover 4 and the circuit board unit 21 Group 3, the alternating current (AC) is reduced in electromagnetic wave and radiation via the protection module 3, and then the alternating current is transmitted to the rectifier 64 of the driving device 6 via the circuit board unit 21 and the connector 23 to convert the alternating current into direct current through the rectifier 64. .

Since the above-mentioned rectified DC power is not very stable, it is pulsating with ripple. DC, this pulsating DC cannot be directly supplied to most electronic circuit applications. The power required for most electronic circuits is pure DC power supplied by the battery. Therefore, the rectified pulsating direct current will pass through the filter 62 to remove its chopped portion, and then transmitted to the DC transformer 63, thereby adjusting the voltage of the direct current to the voltage required by the light emitting diode elements 22, and finally The direct current is transmitted to the light emitting diode elements 22 through the connector 23 and the circuit board unit 21, so that the light emitting diode elements 22 emit light and penetrate the light transmitting block of the pipe body 1.

It should be noted that the LED lighting tube 100 of the embodiment can receive the signal sent by the remote controller 200 through the wireless receiver 65, so that the DC power transmitted to the LED components 22 is controlled by the remote controller 200. . For example, the wireless receiver 65 can be provided with a switch unit 651 and a dimming unit 652. The switch unit 651 can turn on or off the LED components 22 according to the signal received by the wireless receiver 65. The dimming unit 652 can adjust the brightness of the LED components 22 according to the signals received by the wireless receiver 65.

Furthermore, in this embodiment, the wireless receiver 65 has the switching unit 651 and the dimming unit 652 as an example, but in practical applications, it does not exclude only one of the switching unit 651 and the dimming unit 652; or the switching unit The 651 is integrated into the dimming unit 652, that is, after the dimming unit 652 minimizes the brightness of the light-emitting diode elements 22, the light-emitting diode elements 22 can be turned off.

In addition, in the embodiment, the wireless receiver 65 is mounted on the driving circuit board 61 in a soldering manner, but it is not excluded that the wireless receiver 65 is detachably mounted on the driving circuit board 61, thereby driving When a portion of the vulnerable component (e.g., filter 62) in the device 6 fails, the wireless receiver 65 can be removed first to facilitate reuse, without being discarded with the failed component.

[Possible efficacy of the embodiment]

According to an embodiment of the invention, the structural design of the LED lighting tube mentioned above is convenient The row drive device is disassembled and assembled, and the drive device is integrated with a filter (for example, an inductive filter), thereby, in the case of filter damage, the LED illumination tube can be repaired by replacing the drive device, thereby indirectly increasing the LED The service life of other components of the lighting tube (because the conventional LED lighting tube is discarded), and can simultaneously reduce the cost of replacement and environmental protection.

Furthermore, the driving device of the embodiment of the present invention is provided with a rectifier, a filter, and a DC transformer. Therefore, when the alternating current is transmitted to the driving device, the alternating current is processed by the driving device to provide the light emitting diode components. The direct current, which simplifies the circuit layout on the board unit, makes production efficiency and cost more in line with the manufacturer's benefits.

Moreover, the first mounting block of the circuit board unit of the embodiment of the invention is provided with a protection module, so that when the alternating current is input into the circuit board unit, the electromagnetic wave and the radiation can be firstly reduced by the protection module.

In addition, the driving device of the embodiment is provided with a wireless receiver, so that the LED lighting tube can receive the signal sent by the remote controller through the wireless receiver, so that the direct current transmitted to the light emitting diode elements is received by the remote controller. control. In other words, the user can control the opening, closing, or light intensity of the LED lighting tube in a more convenient manner through the remote controller.

The present invention has been disclosed in the above preferred embodiments, and it should be understood by those skilled in the art that the present invention is not to be construed as limiting the scope of the invention. That is, the scope of the present invention is defined by the scope of the patent application, and variations and substitutions equivalent to those of the above embodiments are intended to be included within the scope of the present invention.

100‧‧‧LED lighting tube

2‧‧‧Lighting module

21‧‧‧Circuit unit

22‧‧‧Lighting diode components

23‧‧‧Connector

3‧‧‧protection module

31‧‧‧Common mode inductance

32‧‧‧X capacitor

33‧‧‧Y capacitor

6‧‧‧ drive

61‧‧‧Drive circuit board

62‧‧‧ Filter

63‧‧‧DC transformer

64‧‧‧Rectifier

65‧‧‧Wireless Receiver

651‧‧‧Switch unit

652‧‧‧ dimming unit

200‧‧‧Remote control

Claims (10)

An LED lighting tube comprising: a tube body having a strip shape and at least a portion of the block for light to penetrate; a light emitting module comprising: a circuit board unit disposed through the tube body, and The opposite ends of the circuit board unit respectively pass through opposite ends of the tube body, and opposite ends of the circuit board unit are respectively defined as a first mounting block and a second mounting block; a diode element disposed at the circuit board unit portion of the tube body, wherein the light emitting diode elements are adapted to emit light to penetrate the tube body; and a connector mounted on the a second mounting block of the circuit board unit; a first end cover and a second end cover respectively disposed at opposite ends of the tube body, and the first mounting block is surrounded by the first end cover The second mounting block is located in a space surrounded by the second end cover, wherein the second end cover is formed with a plug hole corresponding to the plug hole and can be inserted through the plug hole a driving hole connected to the outside; and a driving device comprising: a driving circuit board; a filter It is disposed on the driving circuit board; and a DC transformer is disposed on the driving circuit board, and the DC transformer is electrically connected to the filter through the driving circuit board; wherein the driving device is connected to the second end cover The connector is detachably mounted to the connector, and when the driving device is mounted on the connector, the DC transformer of the driving device is electrically connected to the LEDs via the connector and the circuit board unit Body component. The LED lighting tube of claim 1, wherein the driving device further comprises a rectifier for converting alternating current into direct current, the rectifier is disposed on the driving circuit board, and the rectifier is connected to the driving circuit The board is electrically connected to the filter. The LED lighting tube of claim 2, further comprising a protection module for reducing electromagnetic waves and radiation generated by the alternating current, wherein the protection module is disposed in the first installation area of the circuit board unit And the protection module is electrically connected to the rectifier of the driving device via the circuit board unit and the connector. The LED lighting tube of claim 3, wherein the current protection module has at least one of a common mode inductance, an X capacitance, and a Y capacitance. The LED lighting tube of any one of claims 2 to 4, wherein the driving circuit board is further defined as a mounting portion and a connecting portion, the filter, the DC transformer, and the rectifier are mounted The driving device further includes a protective casing, the filter, the DC transformer, the rectifier, and the mounting portion of the driving circuit board are accommodated in a space surrounded by the protective casing The connecting portion of the driving circuit board is exposed outside the space surrounded by the protective casing, and the connecting portion is detachably mounted to the connector via the insertion hole of the second end cover. The LED lighting tube of claim 5, wherein the outer edge of the protective casing has a cross-sectional shape substantially equivalent to a shape surrounded by the second end cap insertion hole. The LED lighting tube of any one of claims 1 to 4, wherein the length of the first end cap corresponding to the longitudinal direction of the tube is substantially equal to the second end cap corresponding to the The length of the tube in the direction of the long axis. A driving device for an LED lighting tube as described in claim 1 of the patent application. The driving device for an LED lighting tube according to claim 8, further comprising a rectifier for converting alternating current into direct current, the rectifier is disposed on the driving circuit board, and the rectifier is connected to the driving circuit board And the filter is electrically connected to each other. The driving device for an LED lighting tube according to claim 9, wherein the driving circuit board is further defined as a mounting portion and a connecting portion, and the filter, the DC transformer, and the rectifier are mounted on the a driving portion of the driving circuit board, the driving device further comprising a protective casing, the filter, the DC transformer, the rectifier, and the mounting portion of the driving circuit board are accommodated in a space surrounded by the protective casing, and The connection portion of the drive circuit board is exposed outside the space surrounded by the protective housing.