JP2011048924A - Led lighting lamp device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an LED lighting lamp device with a substrate structure improved to have a brighter lighting system as a whole, by providing a structure in which light of LEDs arranged on one surface of a long substrate arranged inside a long and straight-tube LED lighting lamp is made to illuminate up to an opposite side of the substrate to reflect at a reflecting plate of a lamp, without any kinds of patterns notably generated. <P>SOLUTION: In the LED lighting lamp device, a plurality of LEDs are arranged on a substrate having electric insulation, and a circuit connected to a power source with the LEDs connected electrically is arranged. The substrate is housed in a given contour of a transparent substrate with electric insulation to form a substrate body, the substrate body is housed in a lighting tube with a longitudinal section of a circle shape, both ends of the lighting tube are sealed by bases, power is supplied to the LEDs in the lighting tube from outside to light the LEDs, and LED light is illuminated at a site where the substrate of the transparent substrate is not arranged. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a straight tube type LED illuminating lamp formed of, for example, Polo Carbonate or other plastic material, and relates to an LED illuminating lamp apparatus in which a substrate on which an LED built in the LED illuminating lamp is mounted is improved. In particular, the LED light goes to the opposite side where the light of all the LEDs is irradiated in a certain direction.

  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 does not pass through the opposite side of the substrate, and the reflector of the lamp cannot be used effectively.

  Therefore, when the LED illumination lamp is mounted on the ceiling, the LED light is irradiated downward, but the light reflected by the reflector of the lamp on the ceiling side is not generated because it is obstructed by the substrate, so the ceiling side is dark and overall A dark image is produced. In order 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 lifetime of the LEDs is shortened. Therefore, a device that can efficiently use the reflector of the lamp so as to be bright overall without increasing the number of LEDs is desired.

Conventionally, there is no long straight tube type illumination lamp of LED that effectively uses the reflector of the lamp, and Patent Document 1 is heavy because a board on which the LED is mounted is arranged, so that the tube does not bend midway. However, there is only a technology that takes into consideration that long pipes do not sag by devising and arranging support pins, support materials, etc. in the pipes.
JP 2002-141555 A

  The problem to be solved by the present invention is that the light of the LED disposed on one side of the long substrate disposed inside the long straight tube type LED illuminating lamp is passed to the opposite side of the substrate to the lamp. In other words, the LED illumination lamp apparatus has an improved substrate structure so that the illumination apparatus can be brightened as a whole by proposing a structure that does not cause any significant pattern to be reflected on the reflector.

  As a means for solving the problems of the present invention, a plurality of LEDs and a circuit electrically connected to these LEDs are connected to an electrically insulating substrate, and the substrate is connected to an electrically insulating transparent substrate. The substrate body is formed within a certain contour, and the substrate body is housed in an illumination tube having a circular longitudinal section, both ends of the illumination tube are sealed with caps, and power is supplied from the outside to the LEDs in the illumination tube. Then, the LED light is turned on, and the LED light is allowed to pass through a portion of the transparent substrate where the substrate is not disposed.

  According to the first and second aspects of the invention, even if the tube is a long tube, the LED illumination light mounted on the internal substrate is guided not only to one surface of the substrate but also to the opposite side. It is reflected and brightened as a whole, and a specific pattern does not occur, and it is effective for heat diffusion of the LED. Therefore, the life of the LED itself is not shortened, which is very effective.

  In the present invention, a long electrically insulating substrate on which an LED and a circuit are mounted is made narrower than before, and this narrow substrate is made of a transparent ceramic or polycarbonate and has a long internal diameter. Installed in the center of the transparent substrate with a wide width, led the LED light to the opposite side of the substrate (upper side of the lighting tube) through the side edge of the transparent substrate, and reflected by the reflection plate positioned outside the lighting tube By doing so, the reflecting plate itself becomes brighter, and the light reflected by this reflecting plate is illuminated with the unreflected light (below the lighting tube) and illuminated on the lower side so that it can be brightened as a whole.

  Below, the LED illuminating lamp apparatus which concerns on the Example of this invention is demonstrated in detail with reference to FIG.1, FIG.2, FIG.3, FIG.4 and FIG.

  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 body 6 of FIG. 2 is inserted and fixed to the crosspieces 4 and 5 with the LED 2 side of the board 3 facing downward as shown in FIGS.

  The substrate body 6 is a transparent transparent substrate 7 made of a material such as polycarbonate or ceramic having good light diffusibility and heat release properties, and a window 7 formed in the shape of a frame with a size at which the substrate 3 can be inserted at the center. The substrate 3 is inserted and arranged. That is, the LED 2 (41i to 41n) is not disposed on the thick portion side inside the lighting tube 1, but the LED 2 (41i to 41n) is disposed on the thin portion side of the lighting tube 1. As a result, the strength can be increased in a round state without changing the outer diameter of the illumination tube 1.

  When the substrate body 6 is formed, the transparent substrate 7 and the substrate 3 are framed to form a stepped peripheral edge 8 (see FIG. 1), and the substrate 3 is inserted and fixed in the direction of the arrow U. In this case, an adhesive means using an adhesive on the periphery may be used. Further, this bonding means takes into consideration that the heat generated by the LED 2 on the substrate 3 can be sufficiently transmitted to the transparent substrate 7.

  FIG. 3 is a cross-sectional view taken along the line HH in FIG. 2, and the substrate 3 having the LED 2 mounted on the stepped peripheral edges 8 of the left and right transparent substrates 7 is inserted and fixed on the frame. In FIG. 3, the circuit 9 is arranged close to the LED 2 side. That is, the short width of the existing board 3 is about 26 mm, the LED is placed at the center of 10 mm on the left and right sides of the short width of the board 3, and the circuit 9 is the short side edge of the board 3. In the present invention, the side edges of the short width of the substrate 3 are reduced by 7 to 8 mm on the left and right sides so that the short width is 18 to 19 mm, and the LED 2 is arranged in the center. Circuits 9 are formed on the left and right sides. The circuit 9 can be sufficiently formed in the dimension from the outermost peripheral edge of the short width of the substrate 3 to the LED 2. The substrate 3 formed in this way is fitted into the transparent substrate 7.

  According to FIG. 4 and FIG. 5, the light of the LED 2 is directed downward to the arrow Q, but light is also emitted to the upper side G. This light passes through the transparent substrate 7 and the thick part S of the lighting tube 1 to the outside (normally The light reflected from the reflecting plate 10 of the lighting lamp hung from the ceiling becomes reflected light Y and is irradiated to the lower side of the reflecting plate 10 together with the light of the arrow Q. Therefore, in the conventional substrate arranged over the entire diameter line on the inside of the illuminating tube 1 through which light does not pass, the LED 2 does not pass through the back side of the substrate, but the present invention reduces the width of the substrate 3 in the short direction. Then, since the substrate 3 is fitted into the stepped peripheral edge 8 opened in the frame shape of the transparent substrate 7 by the window and arranged in the illumination tube 1, the light of the LED 2 also extends from the peripheral edge of the transparent substrate 7 toward the reflector 10 side. The whole environment is brightened.

  FIG. 5 shows a case where the board body 6 of the present invention is inserted into the lighting tube 1. The U-shape of the bars 5, 4 that can sandwich the side edges of the substrate body 6 on the short width side. The size of the mold is set, and the transparent substrate 7 is aligned with the crosspieces 5 and 4 and inserted into the illumination tube 1 from the direction of arrow Z. In this figure, the LED 2 and the circuit 9 are arranged on the lower side of the drawing, so they are not shown in the drawing. As a result, transparent portions can be formed on the left and right of the substrate 3, so that the light of the LED 2 reaches the reflector 10 through the transparent portion of the transparent substrate 7.

  In practice, the circuit 9 may extend from the substrate 3 and may be continuously formed on the transparent substrate 7 and connected to an external circuit through a base (not shown), or the circuit 9 may be formed by a method such as a so-called jumper wire. Alternatively, it may be connected to an external circuit through a base. Moreover, if the transparent substrate 7 is ceramic, the heat dissipation is good, but other materials can be used as long as they have good heat dissipation, transparency, and light diffusibility. The transparent substrate 7 is cut into a frame shape at the center, and the substrate 3 is attached to the transparent substrate 7. However, in the case of glass, any shape and any combination may be used as long as the frame shape can be substantially formed in the center, and the present invention does not depart from the gist. Of course, various applications are possible within the range.

  The LED illuminating lamp device of the present invention is industrially useful because it has been confirmed that light is reflected by the reflector of the illuminating lamp through the transparent portion of the transparent substrate, and can be effectively provided to the market. .

It is an assembly perspective view of a substrate body for explaining an example of the present invention. FIG. 2 is an assembled perspective view of FIG. 1 for explaining an embodiment of the present invention. It is arrow HH sectional drawing of FIG. 2 for demonstrating the Example of this invention. It is sectional drawing which attached the board | substrate body to the illumination tube for demonstrating the Example of this invention. It is a perspective view in the case of mounting | wearing a board | substrate body with the illumination tube for demonstrating the Example of this invention.

1 Lighting tube 2 (41i to 41n) LED
3 Substrate 4, 5 Cross 6 Substrate body 7 Transparent substrate 8 Stepped peripheral edge 9 Circuit 10 Reflector plate K Thin part S Thick part

Claims (2)

  A substrate body in which a plurality of LEDs and a circuit electrically connected to these LEDs and connected to a power source are arranged on a substrate having electrical insulation, and the substrate is accommodated within a predetermined contour of an electrically insulating transparent substrate. The substrate body is housed in a circular lighting tube having a circular longitudinal section, both ends of the lighting tube are sealed with a base, and power is supplied from the outside to the LEDs in the lighting tube to turn on the LEDs. The LED light device is characterized in that the LED light is allowed to pass through a portion of the transparent substrate where the substrate is not disposed.   2. A substrate body according to claim 1, wherein a substrate in which an LED and a circuit are electrically connected is provided in the vicinity of the center of the long transparent substrate that can be inserted into the illumination tube.

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