JP2011070992A - Led lighting apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an LED lighting apparatus capable of making an effective use of a reflection panel of a lamp in which the LED lighting apparatus is equipped, by arranging LEDs further on a side other than a side on which incorporated LEDs are typically arranged in an LED lighting apparatus formed as straight-tube fluorescent-lamp type lighting apparatus formed of a plastic material such as polycarbonate or the like. <P>SOLUTION: In an LED lighting apparatus, an LED lighting is structured such that a plurality of first LED groups 2 are arranged on one side of a substrate 6 having electrically insulating characteristics, a plurality of second LED groups 7 whose number is set as necessary are arranged on a side other than the one side of the substrate 6, the substrate 6 is arranged within an elongate lighting tube 1, both ends of the lighting tube 1 are sealed with caps, and a circuit is so formed as to supply power via the caps to the first and second LED groups 2 and 7 to light them. The LED lighting apparatus is characterized in that LED groups are arranged on a side other than the one side of the substrate 6. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a straight tube type LED lighting device formed of, for example, polycarbonate or other plastic material, and arranges LEDs on a side other than one side of a substrate on which LEDs built in the LED lighting device are arranged. In addition, the present invention relates to an LED lighting device in which LED lighting is improved so that a reflector of a lamp equipped with the LED lighting device can be used effectively.

  A straight tube type LED illuminating lamp simulating a conventional fluorescent lamp is formed by forming a material such as polycarbonate into a tubular shape, and a large number of LEDs connected to a circuit electrically connected to the inside thereof on one surface of a long substrate. This LED is turned on to provide a lighting fixture that can replace fluorescent lamps. And because of its energy saving, the spread is urgent. In this case, the structure which arrange | positions a circuit and LED on the one-way surface of an internal board | substrate is employ | adopted. For this reason, the light of the LED on one side is obstructed by the substrate and does not pass through the opposite side, so that the reflector of the lamp cannot be used effectively.

  In other words, a conventional fluorescent lamp that can be hung on a ceiling or the like is equipped with a reflector that is designed to diffuse the light of the fluorescent lamp around the ceiling and thereby brighten the surroundings. It secures a bright area with a large area.

  When the conventional LED lighting is removed by attaching the fluorescent lamp on the ceiling and inserted into the connector, the board is arranged in the axial direction in the LED lighting, and the LED is installed on one side of this, so it faces downward LED light is irradiated, but the LED light is obstructed upward by the substrate, and the LED light is not irradiated upward, so that the reflector can be used effectively to obtain the entire light spread of the lighting device. Can not.

Therefore, the current situation is that the ceiling is dark overall. To solve this problem, it is conceivable to increase the illuminance by devising the circuit to increase the number of LEDs, but there is a problem that heat is generated and the life of the LEDs is shortened, and the number of LEDs cannot simply be greatly increased. Is the current situation.
Therefore, there is a demand for an LED illumination device that can effectively use a reflector without increasing the number of LEDs, and can be brightened as a whole with an appropriate number even if the number of LEDs is increased.

There is no long straight tube type lighting device for LED that effectively uses a reflector of a fluorescent lamp illuminator for LED lighting, and Patent Document 1 becomes heavy for arranging a substrate on which an LED is mounted, There is only a technology that takes into consideration that a long pipe does not sag by arranging a support pin, a support material and the like in the pipe so that the pipe does not bend midway.
JP 2002-141555 A

  The problem to be solved by the present invention is that, in the case of a straight tube type LED lighting device formed of, for example, polycarbonate or other plastic material in a conventional fluorescent lamp type lighting device, it is built into the LED lighting device. It is to provide an LED illuminating device in which LEDs are arranged on a side other than one side of a substrate on which an LED is arranged, and thereby a reflector of a lamp equipped with the LED illuminating device can be effectively used. .

  As a means for solving the problem, the present invention provides a plurality of first LED groups arranged on one side of a substrate having electrical insulation, and a plurality of first groups determined as necessary on a side other than the one side of the substrate. 2 LED groups are arranged, the substrate is arranged in a long tube, both ends of the tube are sealed with a base, and the first and second LED groups can be lit from an external power source through the base. The LED illumination device is characterized in that a circuit is formed to form LED illumination, and an LED group is arranged on a side other than one side of the substrate.

  According to the first aspect of the present invention, the LED is arranged up to the side opposite to the side where the LED is arranged, and the LED is turned on. Since the side becomes bright, the overall bright range can be increased, and the number of LEDs is not increased so much that the life of the LEDs due to heat is not hindered.

  In the present invention, the reflector can be used by disposing the LED on a side other than the one side of the substrate on which the conventional LED is arranged, and therefore, the ceiling can be brightened in a wide range.

  Hereinafter, LED lighting devices according to embodiments of the present invention will be described in detail with reference to FIGS. 1, 2, 3, 4, and 5.

  The lighting tube 1 according to this embodiment is made of polycarbonate, for example, has a length of about 1200 mm, an outer diameter of about 29 mm to 30 mm, and a thickness of about 0.9 mm in the vicinity of the thin thin portion K. In the vicinity of the thick wall portion S, it is selected to be about 1,8 mm. Next, in the central portion of the illuminating tube 1, cross-shaped bars 4 and 5 having a U-shaped cross section that are open on the diameter line are formed. The board 6 of FIGS. 3 and 4 is inserted and fixed to the crosspieces 4 and 5 from the direction of the arrow H with the first LED group 2 facing down. 2 shows the first LED group 2 of FIG. 1 with the upper side, FIG. 3 shows the first LED group 2 with the upper side, and FIG. 4 shows the second LED group 7 with the upper side. Thus, the first LED group 2 and the second LED group are located just opposite to the substrate 6 respectively.

  The number of LEDs constituting the first LED group 2 and the number of LEDs constituting the second LED group 7 are larger than the number of the first LED group 2, and the first LED group 2 is the main LED. It becomes a substantial lighting. FIG. 5 is a schematic circuit of the first LED group 2 and the second LED group 7, in which three LEDs (from each group of the first LED group 2 composed of three LED groups of the substrate 6 ( A total of 3 × 3 = 9) is taken up, and the circuit is configured as the second LED group 7 (therefore, the number of LEDs in the second LED group is 9).

In this case, one set of LEDs of the first LED group 2 is composed of 40 pieces. Therefore, the first LED group 2 has 120 LEDs in total for each set, but three LEDs from each set are provided. Since it assigns to the 2nd LED group 7, the 2nd LED group is comprised by nine LED. That is, the reflector 8 on the ceiling is irradiated with the LEDs of the second LED group 7 on the substrate 6.
As a result, a wide illumination using the reflector 8 can be obtained without adding a new LED. In FIG. 5, LEDs 1 to 39 of the first LED group 2 represent the number of LEDs, and LEDs 1 to LED 9 of the second LED group 7 represent the number of LEDs.

  Although the LED lighting tube 1 configured in this way is not shown in the figure, it is sealed with a base at both ends, and at the same time, the first LED group 2 and the second LED group 7 are connected to an external power source via the base, Power is supplied and light is emitted.

  In FIG. 1, when the LEDs of the first LED group 2 on the lower side of the substrate 6 are energized, light emission occurs in the direction of the arrow Y, that is, toward the bottom of the ceiling, and passes through the thin portion K of the lighting tube 1. Illuminated through. The LED light of the second LED group 7 on the upper side of the substrate 6 emits light in the direction of arrow X, passes through the upper thick part S of the illuminating tube 1, and is irradiated to the reflecting plate 8 on the ceiling. Reflected and irradiated in the direction of arrow Q. For this reason, the surroundings of the lamps on the ceiling become brighter, and the surroundings of the lamps are dark as in the prior art, and the overall dark image disappears.

  In this way, the number of LEDs that do not interfere with the downward illumination from the ceiling is selected and replaced with the opposite side of the substrate, so that the entire illumination can be brightened. Of course, a new LED may be additionally provided in the second LED group 7 of the substrate 6. In addition, when fixing the board | substrate 6 to the crosspieces 4 and 5, you may use an adhesive agent.

  The LED lighting device of the present invention can make the reflection effect of the reflecting plate broaden the lighting without substantially increasing the power by assigning the LED of the original lighting to the reflection to the reflecting plate. It is industrially useful and can be effectively marketed.

It is a longitudinal cross-sectional view of the LED illumination main body for demonstrating the Example of this invention. It is a schematic assembly drawing of FIG. 1 for demonstrating the Example of this invention. It is a perspective view of the board | substrate which made the 1st LED group the surface for demonstrating the Example of this invention. It is a perspective view of the board | substrate which made the 2nd LED group the surface for demonstrating the Example of this invention. It is the figure which represented the 1st LED group and 2nd LED group for describing the Example of this invention in circuit.

DESCRIPTION OF SYMBOLS 1 Illumination tube 2 1st LED group 4,5 Crosspiece 6 Board | substrate 7 2nd LED group 8 Reflector K Thin part S Thick part

Claims (1)

  A plurality of first LED groups are disposed on one side of a substrate having electrical insulation, and a plurality of second LED groups defined as necessary are disposed on a side other than the one side of the substrate, The substrate is placed in a long illuminating tube, both ends of the tube are sealed with a base, and a circuit is formed so that the first and second LED groups can be lit from an external power source through the base. An LED lighting device comprising: a group of LEDs arranged on a side other than one side of the substrate.

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