JP3164418U - Light emitting diode lamp tube - Google Patents

Abstract

A light-emitting diode lamp tube that reduces electromagnetic interference by improving the arrangement of power lines inside the lamp tube. A storage space is formed inside a case of a light-emitting diode lamp tube, and the storage space is divided into an upper space and a lower space by a partition plate, and different AC electrodes and electric are provided at both ends of the upper space. The first connector 31 and the second connector 32 that are connected to each other are provided, and the power supply drive unit 30 is provided in the upper space. At 332, the first connector 31 and the second connector 32 are electrically connected. The first power input line is connected to the first connector 31 after passing through the lower space. As a result, the first power input line 331 for transporting the AC power source is isolated from the DC electric wire 34, and a DC control signal enters the AC electric wire 33 to affect the power supply circuit of the entire building or to the surrounding environment. Prevents electromagnetic wave damage. [Selection] Figure 2

Description

  The present invention relates to a light-emitting diode lamp tube that can be used by being directly inserted into a fluorescent lamp socket, and more particularly to a light-emitting diode lamp tube that reduces mutual interference generated in a power circuit inside the lamp tube.

  With the advancement of science and technology, people's demand for energy is constantly increasing, and in order to prevent the situation of energy shortage, while searching for new energy sources in various fields, efforts are made to further reduce the power consumption of existing equipment. Yes.

  In general household electric power, lighting occupies a very large part, and thus improvement of the power usage efficiency of the lamp has become a subject of attention. Of the various lamp improvements, the use of light emitting diodes instead of traditional illumination sources is a fairly common technique. However, the light emitting diode is an electronic device that uses a DC power source, and unlike a general lamp, it cannot be used by being inserted into an AC socket. In order to solve this problem, among various light emitting diode light sources, a power supply driving module for AC / DC conversion is generally grounded, and the AC power source is converted to a 5-volt DC power source that can use the light emitting diodes. The brightness of the light emitting diode is controlled by using the above pulse.

  Although this method can achieve a good effect in a relatively large light emitting diode lamp, when reducing the size of the light emitting diode lamp, for example, when manufacturing a fluorescent light emitting diode lamp having a relatively small tube diameter, Since the internal wiring space must be reduced due to the reduction, the space for installing the high-frequency noise suppression element is reduced, and the space between each wiring must be reduced. It becomes easy to generate reduction of interference by entering.

  FIG. 1 shows a general light-emitting diode lamp tube, which includes a case 10, and an internal space of the case 10 is divided into a drive area 12 to which a power supply drive module 11 is attached and an illumination area 14 to which the light-emitting diode module 13 is attached. Has been. In the current general wiring, both ends of the power supply drive module 11 are connected to the electrodes 16 on both sides of the case 10 by the AC wire 15, and the power supply drive module 11 converts the AC power source into a DC power source, and the DC power source is a DC power source. The line 17 is connected to the light emitting diode module 13 in the illumination area 14.

  Both the DC wire 17 and the AC wire 15 are connected to the power supply drive module 11, and in addition, the AC wire 15 and the DC wire 17 are prevented from approaching in the vicinity of the power supply drive module 11 due to the factor of reducing the wiring space. For this reason, the high-frequency signal flowing in the DC electric wire 17 can easily enter the AC electric wire 15 easily.

  AC wires that are interfered with high-frequency signals are accompanied by many electromagnetic disturbance noises, and when an electrical signal with noise enters the power supply circuit of the building itself, various other electric products in the same circuit are severely affected. Electromagnetic waves generated by this high-frequency disturbing electrical signal can also cause damage to surrounding life forms or inanimate substances. In view of the above problems, it is necessary to improve the currently known light-emitting diode lamp tube.

  For this reason, an object of the present invention is to provide a kind of light-emitting diode lamp tube, which improves the arrangement of the power supply line inside the lamp tube, and the electromagnetic waves generated by the AC cable accompanying the noise of the DC cable. Interference (EMI) is reduced, and the influence on the power supply circuit of the entire building and the electromagnetic wave damage formed in the surrounding environment can be avoided.

  Another object of the present invention is to provide a kind of light-emitting diode lamp tube, which achieves the effect of suppressing electromagnetic interference through the internal line arrangement, so that the lamp tube is in a relatively small wiring space, and It can be manufactured using relatively few suppression elements, thereby saving the production cost of the light-emitting diode lamp tube.

  In order to achieve the above object, the present invention includes a case, a housing space is formed inside the case, and a first connector and a second connector are provided at both ends of the case. The two connectors are electrically connected to the electrodes of a general lamp socket. The accommodation space is provided with a circuit board, and the circuit board is separated into an upper space at the upper end and a lower space at the lower end, a plurality of light emitting diode units are provided on one side of the lower space of the circuit board, and A power supply drive unit is mounted in the upper space of the power supply, the power supply drive unit is connected to the first connector by a first power input line, and is connected to the second connector by a second power input line; It is electrically connected to the circuit board with a DC wire. Among these, the first power input line passes through the space under the circuit board and is connected to the first connector, and the first power input line is isolated from the DC electric wire.

  In a preferred embodiment, the first power input line passes through the circuit board and is connected to the first connector.

  In another preferred embodiment, the first power input line is fitted to the surface of the circuit board in the lower space and connected to the first connector.

  In another preferred embodiment, the first power input line is connected to the first connector on the side of the lower space in the tubular body. The first power input line is a transparent conductive film.

  The first power input line and the second power input line are connected to the power supply drive unit at one end approaching the second connector, and the DC wire is connected to the power supply drive unit at one end approaching the first connector. Is done. The case includes a support case and a lamp cover that is made of a light-transmitting material and is combined with the support case.

  In a preferred embodiment, the support case is a semicircular arc plate, and fitting grooves are provided on both sides of the bottom of the semicircular arc plate, and the circuit board is combined with the fitting groove.

  In another embodiment, the support case described above is a semicircular arc plate, and a partition plate is integrally formed at the bottom, and the partition plate and the circuit board are combined. The partition plate is made of a metal material.

  In a preferred embodiment, the support case is a semicircular arc plate, and fitting grooves are provided on both sides of the bottom of the semicircular arc plate, and a partition plate is combined with the fitting groove. Combined with. The partition plate is made of a metal material.

  The present invention allows AC wires (the AC wires are the first power input line and the second power input line) to be sufficiently wired using the space in the lower space and by being too close to the DC wires. Prevent the formation of electromagnetic interference. In addition, the size of the upper space can be reduced, thereby reducing the production cost and the overall volume of the light-emitting diode lamp tube.

It is sectional drawing of a known light emitting diode lamp tube. It is a combination display figure of this invention. FIG. 3 is a cross-sectional view of FIG. 2. It is a combination display figure of another Example of the 1st power input line of this invention. It is a combination display figure of another Example of the 1st power input line of this invention. It is the combination display figure of another Example of the separator of this invention. It is a combination display figure of another Example of the support case of this invention.

  In order to explain in detail the technical contents, structural features, and objects to be achieved of the present invention, examples will be described below in combination with the drawings.

  Please refer to FIG. 2 and FIG. As shown in the drawing, the present invention includes a case 20, which is shaped as a fluorescent lamp tube, and a housing space 21 is formed inside the case 20. The accommodation space 21 is partitioned by a circuit board 41 into an upper space 211 to which the power supply drive unit 30 is attached and a lower space 212 to which the light emitting diode unit 40 is attached. A first connector 31 and a second connector 32 connected to different AC electrodes are provided at both ends of the case 20. The power supply drive unit 30 converts the AC power input from the first connector 31 and the second connector 32 into a DC power that can be used by the light emitting diode unit 40, and adjusts the power supply frequency. To control. The light emitting diode unit 40 is attached to one side of the circuit board 41 near the lower space 212.

  The power supply drive unit 30 is connected to an AC power source by two AC wires 33. In this embodiment, the AC power line 33 includes a first power input line 331 and a second power input line 332 (for convenience of explanation, in the following description of this specification, the so-called AC power line 33 is the first power input line. Line 331 and the second power input line 332), which are electrically connected to the first connector 31 and the second connector 32. The input AC power source is converted into a DC power source by the power supply drive unit 30, and is further drawn into the circuit board 41 by the two DC wires 34 and supplies power to the light emitting diode unit 40. The DC wire 34 is drawn from one side not connected to the AC wire 33 of the power supply drive unit 30.

  In this embodiment, the first power input line 331 and the second power input line 332 are connected to the power supply drive unit 30 at one end close to the second connector 32, and the DC electric wire 34 is connected to the first connector 31. The near end is connected to the power supply drive unit 30, thereby preventing the DC control signal from entering the AC wire 33 due to excessive proximity of the AC wire 33 and the DC wire 34.

  Please refer to FIG. 2, FIG. 4 and FIG. Until the first power input line 331 passes through the power supply drive unit 30 and is connected to the first connector 31, the wiring system is adjusted according to actual needs. In the embodiment shown in FIG. 2, a first power input line 331 penetrating sideways is formed on the surface of the circuit board 41 by a print etching method, and the first power input line 331 is connected to the circuit board 41 in the lower space 212. It is fitted on the surface and connected to the first connector 31. The first power input line 331 and the second power input line 332 are connected to the power supply drive unit 30 through one end approaching the second connector 32, and the DC electric wire 34 is driven by power supply through one end close to the first connector 31. Connected to unit 30.

  Please refer to FIG. In this embodiment, the first power input line 331 is passed through the lower space 212 by a straight wiring method and connected to the first connector 31. The first power input line 331 and the second power input line 332 are connected to the power supply drive unit 30 at one end close to the second connector 32, and the DC wire 34 is driven to supply power by one end close to the first connector 31. Connected to unit 30.

  See further FIG. The first power input line 331 may also be provided on the side of the lower space 212 in the tubular body and connected to the first connector 31. In this embodiment, the first power input line 331 is a transparent conductive film, for example, indium tin oxide (ITO) or zinc oxide (ZnO) thin film, and the transparent conductive film is attached to the inner surface of the lamp cover 24. It is done. In another embodiment, the first power input line 331 may also be connected to the first connector 31 through the circuit board 41.

  The above-described installation method of the first power input line 331 is used for convenience of explanation, and as can be seen from the above-described embodiments, the present invention connects the first power input line 331 to the circuit board 41 and its circuit board 41. The DC power line 34 and the AC power line 33 can be isolated from each other by the circuit board 41 having an actual physical thickness, and the first power input line 331, the second power input line 332, and the DC power line 34 can be installed in the following space. The power supply drive unit 30 is connected to different sides of the power supply drive unit 30 and the power supply drive unit 30 to prevent electromagnetic interference due to excessive proximity between the electric wires. In addition, the above-described fixed connection method of the circuit board 41 to the inside of the case 20 can be adjusted according to a difference in actual use conditions.

  See FIG. In the preferred embodiment shown in the figure, the case 20 includes a lamp cover 24 formed of a light-transmitting material and a support case 23 and combined with the support case 23. The support case 23 and the lamp cover 24 are combined. After that, the accommodation space 21 is formed jointly.

  The support case 23 is a semicircular arc plate 231, and fitting grooves 232 are provided on both sides of the bottom of the semicircular arc plate 231, and the circuit board 41 is combined by the fitting grooves 232. After the semicircular arc plate 231 and the circuit board 41 are combined in this way, an upper space 211 to which the power supply drive unit 30 is jointly formed is formed, and another length formed after the lamp cover 24 and the support case 23 are combined is formed. That is, the tubular space is the lower space 212 to which the light emitting diode unit 40 is attached.

  Please refer to FIG. In another embodiment shown in the figure, the support case 23 is a semicircular arc plate 231, and a partition plate 22 is integrally formed at the bottom of the semicircular arc plate 231, and is close to the lower space 212 of the partition plate 22. The circuit board 41 is attached to the side, and in another embodiment, the partition plate 22 is made of a metal material, and the effect of preventing electromagnetic interference between the electric wires is enhanced by the shielding action of the metal material.

  See also FIG. In another illustrated embodiment, the support case 23 is a semicircular arc plate 231, and fitting grooves 232 are provided on both sides of the bottom of the semicircular arc plate 231, and the partition plate 22 is combined with the fitting groove 232. In addition, the circuit board 41 is attached to one side of the partition plate 22 near the lower space 212, and in another embodiment, the partition plate 22 is made of a metal material, and between the electric wires by the shielding action of the metal material. The effect of preventing electromagnetic interference is enhanced.

  In summary, the light-emitting diode lamp tube of the present invention isolates the AC and DC wires from each other by a circuit board by adjusting the arrangement position of the AC wires, thereby reducing the phenomenon of electromagnetic interference. As a result, it is possible to prevent the DC control signal from entering the AC power line and affecting the power supply circuit of the entire building or forming electromagnetic wave damage in the surrounding environment. In addition, the entire volume is made compact, and the production cost can be reduced.

  What has been described above is only an example of the present invention, and does not limit the scope of the present invention.Equivalent changes and modifications that can be made based on the claims of the utility model registration of the present invention are all included. It shall belong to the scope covered by the rights of the present invention.

DESCRIPTION OF SYMBOLS 10 Case 11 Power supply drive module 12 Drive area 13 Light emitting diode module 14 Illumination area 15 AC electric wire 16 Electrode 17 AC electric wire 20 Case 21 Accommodating space 211 Upper space 212 Lower space 22 Separation plate 221 Circuit board 23 Support case 231 Semicircular arc plate 232 Fitting groove 25, 24 Lamp cover 30 Power supply drive unit 31 1st connector 32 2nd connector 33 AC electric wire 331 1st power input line 332 2nd power input wire 34 DC electric wire 40 Light emitting diode unit 41 Circuit board

Claims (12)

  A light-emitting diode lamp tube includes a case, a housing space is formed inside the case, a first connector and a second connector are provided at both ends of the case, and a lamp socket is formed by the first connector and the second connector. A circuit board is provided in the housing space, the circuit board is separated into an upper space at the upper end and a lower space at the lower end, and a plurality of light emitting diodes are provided on one side of the lower space of the circuit board. A power supply drive unit is mounted in the upper space, the power supply drive unit is connected to the first connector by a first power input line, and the second connector is connected by the second power input line Is connected to the circuit board by a DC electric wire, and the first power input line is connected to the first connector through a space below the circuit board, whereby the first power input line is connected to the circuit board. DC Wherein the isolated and lines, light-emitting diode lamp tube.   2. The light-emitting diode lamp tube according to claim 1, wherein the first power input line passes through the circuit board and is connected to the first connector.   2. The light-emitting diode lamp tube according to claim 1, wherein the first power input line is fitted to the surface of the circuit board in the lower space and connected to the first connector.   2. The light-emitting diode lamp tube according to claim 1, wherein the first power input line is connected to the first connector on a side surface of the lower space in the tubular body.   5. The light-emitting diode lamp tube according to claim 4, wherein the first power input line is a transparent conductive film.   The light-emitting diode lamp tube according to any one of claims 2 to 5, wherein one end of the first power input line and the second power input line approaching the second connector is connected to the power supply drive unit, A light-emitting diode lamp tube, wherein a DC wire has one end approaching the first connector connected to the power supply drive unit.   7. The light-emitting diode lamp tube according to claim 6, wherein the case includes a support case and a lamp cover formed of a light-transmitting material and combined with the support case.   8. The light-emitting diode lamp tube according to claim 7, wherein the support case is a semicircular arc plate, and a fitting groove is provided on both sides of the bottom of the semicircular arc plate, and the circuit board is combined by the fitting groove. A light-emitting diode lamp tube.   8. The light-emitting diode lamp tube according to claim 7, wherein the support case is a semicircular arc plate, and a partition plate is integrally formed at the bottom, and the circuit plate is combined with the partition plate. tube.   8. The light-emitting diode lamp tube according to claim 7, wherein the support case is a semicircular arc plate, and fitting grooves are provided on both sides of the bottom of the semicircular arc plate, and a partition plate is combined with the fitting groove. A light-emitting diode lamp tube, characterized by being combined with a circuit board by a plate.   The light-emitting diode lamp tube according to claim 9, wherein the partition plate is made of a metal material.   The light-emitting diode lamp tube according to claim 10, wherein the partition plate is made of a metal material.

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