JP2011243551A - Straight-tube fluorescent lamp type led lighting system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a straight-tube fluorescent lamp type LED lighting system capable of being used by connecting a socket part of a fluorescent lamp fixture of various types, and changing a light irradiating direction to an arbitrary direction.SOLUTION: In the straight-tube fluorescent lamp type LED lighting system mounting an LED substrate having a number of LEDs mounted on the surface inside a transparent or a translucent cylindrical pipe for irradiating light from the surface of the LED substrate, an end collar is fitted to either side of the cylindrical pipe, and a synthetic resin base cap equipped with a pair of terminals capable of being connected with a socket of the fluorescent lamp fixture is insertion-coupled in free turning at an end of the end collar, with which, a light irradiation direction can be changed in an arbitrary direction.

Description

  The present invention relates to an illuminating device using an LED (light emitting diode), and more particularly to a straight tube fluorescent lamp type LED illuminating device that can be easily mounted on an existing fluorescent lamp fixture.

  2. Description of the Related Art Conventionally, fluorescent lamp type LED lamps have been proposed in the following Patent Document 1 as an illumination device that is used by being mounted on an existing fluorescent lamp fixture. This fluorescent lamp type LED lamp is a transparent or translucent cylindrical pipe in which a long LED substrate on which a large number of LEDs (light emitting diodes) are mounted is attached along the longitudinal direction. The terminal is attached to both ends.

JP 2004-335426 A

  However, in this type of conventional LED type lamp, a large number of LEDs are mounted on the front surface of the LED substrate, and an LED lighting circuit is mounted on the back surface of the substrate, and the substrate is in a transparent or translucent cylindrical pipe. And fixed in a certain direction, for example, a predetermined front. That is, the light irradiation direction of the LED lamp always faces the front of the transparent or translucent cylindrical pipe, and is fixed in a fixed direction with respect to the terminals fixed at both ends of the transparent or translucent cylindrical pipe. It was a structure.

  For this reason, when this type of LED lamp is mounted on a fluorescent lamp apparatus, the socket of the fluorescent lamp apparatus is a non-rotating butt-type socket, which is always a transparent or translucent cylindrical pipe in a certain direction. If the socket is a type in which the terminals at both ends are mounted by pressing against the terminal plate of the socket, the light irradiation side of the LED lamp can be mounted in a certain direction. However, the socket of the fluorescent lamp fixture is a rotary sandwiching type socket, in which the terminals at both ends of the LED lamp are inserted into the socket, and then rotated 90 degrees in either the left or right direction. In this case, there is a problem that the light irradiation surface of the LED may not coincide with the direction of the irradiation surface of the fluorescent lamp apparatus depending on the direction in which the LED lamp is rotated.

  In addition, even in the case of a butt-type socket part where the terminals on both ends of a transparent or translucent cylindrical pipe are always pressed against the terminal plate of the socket in a fixed direction, the irradiation surface is perpendicular to the plane of the socket. In the fluorescent lamp fixture that forms the LED lamp, since the light irradiation direction of the fluorescent lamp fixture and the light irradiation direction of the LED lamp are different, there is a problem that the LED lamp cannot be mounted on this type of fluorescent lamp fixture.

  The present invention solves the above-described problems, and can change the light irradiation direction to an arbitrary direction and can be used by connecting to a socket of various types of fluorescent lamp fixtures. It aims at providing a type LED type illuminating device.

In order to achieve the above object, a straight tube fluorescent lamp type LED illumination device according to claim 1 of the present invention is provided with an LED substrate having a number of LEDs mounted on a surface in a transparent or translucent cylindrical pipe. In a straight tube fluorescent lamp type LED illumination device that emits light from the surface of the LED substrate,
An end collar is attached to both sides of the cylindrical pipe, and a synthetic resin base cap having a pair of terminals connectable to a socket of a fluorescent lamp fixture is rotatably fitted to the end collar.

  In the straight tube fluorescent lamp type LED lighting device, as in claim 2, a stopper mechanism is interposed between the end collar and the base cap so that the rotation range of the base cap is regulated. Can be configured.

  Further, as in claim 3, the flange formed on the end collar is fitted into an annular groove provided in the base cap, and a locking portion protruding radially from the flange is formed in the annular groove. The stopper mechanism can be provided by being locked to the portion.

According to the straight tube fluorescent lamp type LED lighting device having the above configuration, a base cap having terminals that can be connected to sockets of existing fluorescent lamp fixtures is attached to both ends of a transparent or translucent cylindrical pipe via end collars. It can be used by attaching it to an existing fluorescent lamp fixture, but in a transparent or translucent cylindrical pipe, an LED substrate with a large number of LEDs mounted on its surface faces its light irradiation surface in one direction. Since it is attached, the irradiation surface as the illumination device is limited to the front side. However, since the base caps are fitted to the end collars that are detachably fitted to both ends of the cylindrical pipe so as to be able to rotate relative to each other, the LED type illumination device is attached to the existing fluorescent lamp fixture, and then transparent. Alternatively, the light irradiation surface can be changed in an arbitrary direction by turning a translucent cylindrical pipe.
Therefore, it is a case where the irradiation surface of the fluorescent lamp fixture is determined in one direction, and the light irradiation surface of the LED illumination device can be easily adjusted to that direction by turning a transparent or translucent cylindrical pipe.

  Moreover, even if the socket of the fluorescent lamp fixture is a sandwiching and rotating type socket that is mounted while turning the LED lighting device, it can be easily mounted while turning the base caps on both sides. Also in this case, similarly to the above, after the LED illumination device is mounted on the fluorescent lamp fixture, the transparent or translucent cylindrical pipe can be rotated in any direction to easily adjust the light irradiation surface. .

  Furthermore, by arranging LEDs irradiating from a transparent or translucent cylindrical pipe in a certain number, it is possible to obtain the same luminous brightness as that of existing fluorescent lamps, and fluorescent lamps having the same luminous brightness. In comparison with the fluorescent lamp that irradiates light of the same luminance, the power consumption can be significantly reduced particularly in the LED illumination device using the white LED. In addition, by using an LED illumination device instead of a fluorescent lamp, the life of the lamp can be greatly extended.

It is a front view of the LED type illuminating device which shows embodiment of this invention. It is an expanded sectional view of the edge part of the illuminating device. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The embodiment of the present invention shows the most preferable mode of the present invention, and the present invention is not limited to this. FIG. 1 is a front view of the LED illumination device 1, and FIG. 2 is an enlarged cross-sectional view of an end portion thereof.

  This LED illumination device 1 is basically configured to be usable by being mounted on sockets 31, 31 of an existing fluorescent lamp fixture 3, and a large number of LEDs (white light emitting diodes) 4 are provided in the cylindrical pipe 2. The mounted long LED board 41 is attached along the longitudinal direction, and a pair of terminals 51 and 51 are attached to both ends of the cylindrical pipe 2 via end caps 5 and 5.

  The cylindrical pipe 2 is formed in a pipe shape with a transparent, translucent or translucent polycarbonate resin or the like, and end caps 5 and 5 are rotatably fitted at both ends. In order to rotatably support the end caps 5 and 5, end collars 6 and 6 are attached to both ends of the cylindrical pipe 2 as shown in FIGS. When the end collars 6 and 6 are detachably attached to both ends of the cylindrical pipe 2, the LED substrate 41 can be detached from the cylindrical pipe 2.

  A flange 62 is formed on one end face of the end collars 6, 6, and a locking portion 63 protruding in the radial direction is provided on the flange 62. In addition, on the inner walls of the end collars 6 and 6, several protrusions 61 are provided in the circumferential direction for positioning by contacting the edge of the cylindrical pipe 2. The protrusion 61 extends to the side surface of the flange 62 and improves the strength of the flange 62. If the flange 62 is formed so as to have an opening larger than the width of the LED substrate 41, the LED substrate 41 can be easily removed.

  An annular groove 52 is provided on the outer periphery in the axial direction of the end caps 5, 5. A substantially half circumference of the annular groove 52 is formed in the deep groove 520, and the rest is formed in the shallow groove 521. Section 522 continues. Further, the claw portion 53 is formed by providing a slit 530 in the circumferential direction so that the opening end side is tapered from the annular groove 52. The width of the slit 530 is made larger than that of the locking portion 63 of the flange 62. 54 is a gutter provided on the outer periphery of the base caps 5 and 5 and abuts on the flange 62 of the end collars 6 and 6 to determine the position.

  When the base caps 5, 5 are fitted to both ends of the end collars 6, 6, first, the slit 530 is aligned with the locking portion 63, and the claw portion 53 of the base caps 5, 5 is reduced in diameter. The flanges 62 of the end collars 6 and 6 are inserted into the shallow grooves 521 of the annular groove 52 and the engaging portions 63 of the flange 62 are inserted into the deep grooves 520.

  Although the base caps 5 and 5 are rotatable with respect to the end collars 6 and 6, the step portion 522 that changes from the deep groove 520 of the annular groove 52 to the shallow groove 521 and the locking portion of the flange 62. The rotation range of the base caps 5 and 5 is restricted by the stopper mechanism 7 constituted by 63.

  The base caps 5, 5 are formed of an opaque synthetic resin made of the same material as the end collars 6, 6 formed of an opaque synthetic resin, and two terminals 51, 51 is projected in parallel and electrically insulated. These terminals 51 and 51 are formed in the same standard as the FL type fluorescent lamp, and can be attached to the sockets 31 and 31 of the existing fluorescent lamp fixture 3. The length of the lighting device 1, that is, the length in the axial direction in which the base caps 5 and 5 are connected to both sides of the cylindrical pipe 2 is the same as that of the existing FL type fluorescent lamp.

  Further, an LED substrate 41 on which a large number of LEDs (white light emitting diodes) 4 are mounted is mounted in the cylindrical pipe 2. As shown in FIG. 1, FIG. 2, etc., the LED board 41 is formed in a strip-like shape and is mounted on the front (front) side of the LED board 41 so that, for example, 40 LEDs 4 irradiate the front with light. . The LED substrate 41 is fixed along the inside of the cylindrical pipe 2 by a member such as a synthetic resin clip.

  Therefore, the front surface (front surface) of the LED substrate 41, that is, the light irradiation surface of the LED 4 is the front surface of the lighting device 1, and the back surface of the LED substrate 41 is the back surface of the lighting device 1. The LED substrate 41 and the terminal 51 are connected by a flexible lead wire 10. The flexible lead wire 10 uses various conductive wires having flexibility, and is connected between the cylindrical pipe 2 and the base caps 5 on both sides. For example, wiring is performed with a certain margin so as to allow the rotation within a range of about 180 degrees.

  As shown in FIG. 1, an AC / DC converter 8 connected to a terminal 51 is placed on the upper surface of the substrate 41, which converts alternating current of a commercial power source into direct current. Further, the AC / DC converter 8 is connected to a voltage control unit 9, and the control unit 9 adjusts the voltage supplied to each LED 4 to, for example, 2.8V.

  The number of LEDs 4 is adjusted and connected in series so that the rated voltage (for example, 3.3 V) is applied to each LED 4 in operation, whereby the voltage on the DC output side of the rectifier RC (not shown). That is, the power supply voltage is divided so that the rated voltage is applied to each LED 4. That is, when the lighting device 1 is mounted on the existing fluorescent lamp fixture 3, a commercial power supply of AC100V is applied between the terminals 51, so that the DC output side of the rectifier RC of the lighting circuit has a slightly higher direct current. Voltage is output.

  The LED illumination device 1 configured as described above is used by being mounted on an existing fluorescent lamp fixture 30. If the fluorescent lamp apparatus 30 is a glow lamp lighting type, it is used with the glow lamp removed.

  On the other hand, when the socket of the fluorescent lamp fixture 3 is a sandwiching and rotating socket 31, when the lighting device 1 is mounted, the terminals 51 of the base caps 5 and 5 at both ends of the lighting device 1 are first socketed. Before inserting into the central recess in 31, the base caps 5, 5 at both ends are rotated with respect to the cylindrical pipe 2, and the terminal 51 is mounted so as to be sandwiched between the metal terminal plates in the socket 31. Thus, since only the base caps 5 and 5 can be turned and the illuminating device 1 can be attached, the cylindrical pipe 2 can be attached as it is. After this, for example, when the light irradiation surface of the fluorescent lamp fixture 3 is at the lower side of FIG. 1 and the irradiation surface of the cylindrical pipe 2 (the surface of the LED substrate 41) is directed to the right or left other than the lower side, for example. The cylindrical pipe 2 may be turned so that the light irradiation surface is aligned with the light irradiation surface of the fluorescent lamp fixture 3.

  In addition, the LED type illumination device 1 is provided with base caps 5 and 5 having terminals connectable to socket portions of existing fluorescent lamp fixtures via end collars 6 and 6 at both ends of the cylindrical pipe 2. Although it can be used by being mounted on a fluorescent lamp fixture, an LED substrate 41 having a large number of LEDs 4 mounted on the surface thereof is mounted in the cylindrical pipe 2 with its light irradiation surface directed in one direction. The light irradiation surface is limited to the front side. However, since the base caps 5 and 5 are rotatably fitted to both ends of the cylindrical pipe 2, after the lighting device 1 is mounted on an existing fluorescent lamp fixture, the cylindrical pipe 2 is turned to irradiate the light. The surface can be changed in any direction. Therefore, it is a case where the irradiation surface of the fluorescent lamp fixture is determined in one direction, and the light irradiation surface of the illuminating device 1 can be easily adjusted to that direction by turning the cylindrical pipe 2.

  Thus, even if the socket of the fluorescent lamp fixture is a sandwiching and rotating socket and is mounted while rotating the lighting device 1, it can be easily mounted by rotating the base caps 5 and 5 on both sides. Also in this case, similarly to the above, after the lighting device 1 is mounted on the fluorescent lamp fixture, the cylindrical pipe 2 can be turned in an arbitrary direction to easily adjust the light irradiation surface.

  Furthermore, white LEDs that emit white light can be arranged in a certain number so that they can obtain the same luminous brightness as fluorescent lamps. Fluorescent lamps having the same luminous brightness and their power consumption When compared, the power consumption can be reduced to 1/3 to 1/4 in a lighting device using a white LED, compared to a fluorescent lamp that emits light of the same luminance. Further, by using an LED illumination device in place of the fluorescent lamp, the lifetime of the lamp can be extended by at least 50%.

  Thus, the LED lighting device 1 of the present invention consumes less power and has a longer life than ordinary fluorescent lamps, so in fluorescent lamp fixtures such as evacuation guide lights that are used for a long period of time, It can be used suitably and effectively.

DESCRIPTION OF SYMBOLS 1 Straight tube fluorescent lamp type LED type illuminating device 2 Cylindrical pipe 3 Fluorescent lamp fixture 31 Socket part 4 LED
41 LED board 5 Base cap 51 Terminal 52 Claw part 6 End collar 62 Flange 63 Locking part 7 Stopper mechanism 8 Rectifier 9 Control part 10 Flexible lead wire

Claims (3)

In a straight tube fluorescent lamp type LED illuminating device in which a LED substrate on which a large number of LEDs are mounted in a transparent or translucent cylindrical pipe is mounted, and light is emitted from the LED of the LED substrate,
An end collar is attached to both sides of the cylindrical pipe, and a synthetic resin base cap having a pair of terminals connectable to a socket of a fluorescent lamp fixture is rotatably fitted to the end collar. Straight tube fluorescent lamp type LED lighting device.   The straight tube fluorescent lamp type LED illumination device according to claim 1, wherein a stopper mechanism is interposed between the end collar and the base cap to restrict a rotation range of the base cap.   The stopper formed by fitting the flange formed with the end collar into an annular groove provided in the base cap, and engaging a locking portion protruding in the radial direction from the flange with a stepped portion formed in the annular groove. The straight tube fluorescent lamp type LED illumination device according to claim 2, further comprising a mechanism.

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