JP2013235770A - Straight-tube type led lamp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a straight-tube type LED lamp capable of being mounted on an existing waterproof type lighting fixture using a straight-tube type fluorescent lamp.SOLUTION: A straight-tube type LED lamp can be mounted on a lighting fixture wherein a straight tube type fluorescent lamp is mounted on a lighting fixture body by fitting a cover cap 4 on each of a straight-tube type fluorescent lamp via a waterproof elastic packing and by making both the cover caps screwed into a pair of sockets of the lighting fixture body, in place of the straight-tube type fluorescent lamp. The straight-tube type LED lamp includes a lamp body 7 having LEDs as a light source, and a mounting end 8 fixed on each of ends of the lamp body and having a holding columnar section 80 of an enough girth to be movably fitted into the cover cap via the elastic packing. The LED lamp is formed to have the same dimensions as the fluorescent lamp. Both the columnar sections are set at a length adding moving sections in which the caps can be screwed into the sockets 3 in advancing on the columnar sections and can be retreated by being released from its screwing.

Description

  The present invention relates to a straight tube LED lamp that can be applied to an existing lighting device for a straight tube fluorescent lamp. In particular, the present invention relates to a straight tube LED lamp that can be fitted to a waterproof type lighting fixture in place of the fluorescent lamp. In the present invention, the term “waterproof” is used as a concept including the function of “dustproof”.

  Conventionally, as a waterproof type lighting fixture for a straight tube fluorescent lamp, a lighting fixture having a configuration as shown in FIG. 9 is generally known (see, for example, Patent Document 1).

  The straight tube type LED lamp of the present invention is used by being mounted on a lighting device (existing lighting device) having a configuration like the above lighting device instead of a straight tube type fluorescent lamp. First, the configuration of the lighting fixture (existing lighting fixture) will be described with reference to FIG. A part of the configuration will be described with reference to FIGS.

  As shown in FIG. 9, the luminaire 1 includes a luminaire main body 10 and a straight tube fluorescent lamp 2 attached to the luminaire main body 10. The lighting apparatus 1 (apparatus body 10) is configured for a 40 W type straight tube fluorescent lamp. The 20W type, 30W type, 80W type, 110W type and other wattage type straight tube fluorescent lamps are configured in substantially the same manner except for the size and the like.

  The instrument body 10 includes a chassis 11 that is attached to a ceiling portion or other installation portion (not shown), and a pair of sockets 3 and 3 that are fixedly provided at both ends of the chassis 11 and face each other. The chassis 11 houses a ballast, an inverter circuit, and other necessary or desired electrical components, electronic components (electronic circuits), and the like (not shown).

  The sockets 3 are waterproof lamp sockets having a waterproof function (including a dustproof function) such as rainproof and moistureproof, and are generally called waterproof sockets. Both sockets 3 are made of plastic or the like, and have a mounting portion 30 that is fixedly attached to the chassis 11 and a socket body 31 that is integrally formed with the mounting portion 30. A screw groove is formed on the outer peripheral surface of the socket body 31. 32 (male thread) is engraved. An annular flange 31 a having a larger diameter than the outer diameter of the socket body 31 is formed at the base end of the socket body 31.

  The fixture body 10 is fitted to both ends of the fluorescent lamp 2 so as to be movable in the longitudinal direction and is screwed into the socket body 31 and attached to the socket body 31, and both ends of the fluorescent lamp 2. It is provided with elastic waterproof packings 5 and 5 which are fitted between the cap 4 and the outer peripheral surfaces of both ends of the fluorescent lamp 2 so as to be movable in the longitudinal direction. Both socket bodies 31 are provided with a waterproof function (including a dustproof function) by the cap 4 and the packing 5.

  As shown in detail in FIG. 3 (c), both socket bodies 31 have a pair of connection terminals 33, 33 for releasably engaging a pair of pin terminals described later of the fluorescent lamp 2 so as to be electrically connected. Prepare. The dimension between both socket main bodies 31 (the front surface of the main body 31) of both sockets 3 is set to a prescribed dimension according to the straight tube fluorescent lamp to be mounted. For example, in the case of a 40 W type fluorescent lamp, it is set to 1200 mm, for example.

  As shown in detail in FIGS. 3 (b) and 3 (c), both socket bodies 31 include a circular annular recess 34 that is positioned near the outer periphery of the socket body 31 and formed along the outer periphery. The concave portion 34 is provided to engage a second cylindrical portion of the packing 5 which will be described later. This point will be further described later. Both connection terminals 33 are electrically connected to an electric cord 35 wired in the chassis 11.

  The fluorescent lamp 2 is an ordinary straight tube fluorescent lamp (40 W type in this example) that is generally commercially available. The fluorescent lamp 2 includes an arc tube 20 made of a glass tube having a predetermined diameter, in this example, for example, a 25 mm diameter, and metal base portions 21 and 21 provided by being fitted and fixed to both ends of the arc tube 20. Prepare. The base portion 21 is formed with a diameter (diameter) slightly smaller than that of the arc tube, and a pair of pin terminals 22, 22 that are electrically connected from the tip to the connection terminal 33, respectively. .

  The total length of the fluorescent lamp, that is, the length from the tip of one base part 21 to the tip of the other base part 21 is set according to the wattage. In this example, a 40 W fluorescent lamp is disclosed, and the length is set to, for example, 1198 mm (1198 mm in this example).

  Both the cover caps 4 are formed of plastic or the like, and are fitted to both ends of the fluorescent lamp 2 so as to be movable in the longitudinal direction, and outwardly spread toward one end of the tube 40. A threaded cylinder portion 42 is provided which extends through a tapered wall portion 41 (see also FIG. 4) and has a diameter larger than that of the tubular portion 40. A screw groove 43 that is screwed into the screw groove is formed on the inner peripheral surface of the screw cylinder portion 42. Both caps 4 are attached to the socket 3 by screwing the screw cylinder portion 42 into the socket body 31.

  The caps 4 are annular flanges that extend substantially inwardly along the peripheral edge of the other end of the fitting tube 40 and can be fitted to the end of the fluorescent lamp 2 so as to be movable in the longitudinal direction. Part 44 is provided. Thereby, the packing 5 is configured so that the flange portion 44 restricts the movement of the fitting tube portion 40 in the other end direction, and is pressed by the flange portion 44 to move forward in synchronization with the cap 4. It is. The fitting tube portion 40, the tapered wall portion 41, the screw tube portion 42, and the flange portion 44 are integrally formed.

  Both the packings 5 are formed of a rubber material or other elastically deformable material. Both packings 5 are formed so as to be accommodated in the cap 4, and are fitted to both ends of the fluorescent lamp 2 so as to be movable in the longitudinal direction, and outward toward one end of the cylindrical portion 50. A second cylindrical portion 52 that extends through a protruding annular flange 51 (see also FIG. 5) and engages (engages with) the annular recess 34 of the socket body 31 is provided. The first cylindrical portion 50, the annular flange portion 51, and the second cylindrical portion 52 are integrally formed.

The length dimension X ₁ of the first cylindrical portion 50 is a desired length than the length dimension X ₂ from one end P ₁ of the fitting tube portion 40 of the cap 4 to the inner peripheral wall surface of the annular flange portion 44. (For example, about 2 to about 3 mm) is set longer. The thickness of the first cylindrical portion 50 is set to be approximately equal to the length of the flange portion 44 of the cap 4, that is, the length dimension from the inner peripheral wall surface of the fitting tube portion 40 to the tip of the flange portion 44. ing.

A taper corresponding to the tapered wall portion 41 of the cap 4 is provided on the first cylindrical portion 50 side of the annular flange 51 of the packing 5 and the second cylindrical portion 52 side is formed with a flat surface. Yes. Accordingly, the flange 51 is configured such that the tapered portion is in close contact with the tapered wall portion 41 of the cap 4 and the flat surface is in close contact with the front surface of the socket body 31. is there.
Further, the outer diameter of the flange 51 is formed to be substantially the same as the inner diameter of the screw cylinder portion 42 of the cap 4.

  The first cylindrical portion 50 of the packing 5 is positioned near the rear end side of the cylindrical portion 50 (on the right end side in FIG. 9 (e)), and is recessed endlessly on the outer peripheral wall surface of the cylindrical portion 50. An annular concave groove 53 is formed. The operation of the concave groove 53 will be described later.

  Moreover, the illustrated instrument body 10 includes a metal ring 6 that is formed at the end of the fluorescent lamp so as to be movable in the longitudinal direction, and is housed in the fitting tube portion 40 of the caps 4. . The ring 6 is formed to a desired thickness. The configuration of the ring 6 is disclosed in detail in FIG.

  Next, a method for mounting the fluorescent lamp 2 on the instrument main body 10 and an operation thereof will be described.

  First, the ring 6 is accommodated in the fitting cylinder part 40 of both caps 4 and the packing 5 is accommodated in the fitting cylinder part 40 from the first cylindrical part 50 side. Next, in the above state, the caps 4 are fitted together with the packing 5 to both ends of the fluorescent lamp 2 from the annular flange 44 side.

  In this state, the pair of pin terminals 22 at both ends of the fluorescent lamp 2 are engaged with and electrically connected to the connection terminals 33 of the socket body 31 of the fixture body 10, and the screw cylinder portions 42 of both caps 4 are connected to the socket body. The fluorescent lamp 2 is attached to the instrument main body 10 by being screwed and tightened to 31.

  In the mounted state, the second cylindrical portion 52 of the packing 5 is fitted (engaged) in the annular recess 34, the flat surface side of the annular flange 51 comes into close contact with the front surface of the socket body 31, and the flange The 51 tapered portion fits closely with the tapered wall 41 of the cap 4.

  On the other hand, as shown in FIG. 9C, the first cylindrical portion 50 of the packing 4 is elastically deformed and contracted (compressed) via the annular groove 53 by tightening the screw cylinder portion. The portion of the groove 53 of the cylindrical portion 50 is elastically deformed and protrudes inward, and comes into close contact with the outer peripheral wall surface of the fluorescent lamp 2 in an annular shape. As a result, the groove 53 has an O-packing action.

  Therefore, the fluorescent lamp 2 is attached to both the sockets 3 by attaching waterproof and dustproof functions to both ends and attached to the instrument body 10.

  Recently, straight tube LED lamps using LEDs (light-emitting diodes) as light sources have been developed and are in widespread use (see, for example, Patent Documents 2 to 4). According to these LED lamps, it is possible to reduce the power consumption and extend the life as compared with fluorescent lamps.

  However, since an LED lamp accommodates and provides a substrate, a rectifier, a pressure control circuit, and the like in which a plurality of LEDs are arranged in a circular tubular body constituting the lamp body, the outer diameter of the lamp body is a tube of a fluorescent lamp. Larger than the diameter. Therefore, the straight tube LED lamps disclosed in Patent Documents 2 to 4 and the like cannot be mounted on the fixture main body of the waterproof type lighting fixture for a straight tube fluorescent lamp shown in FIG. 9 in place of the fluorescent lamp. . However, a straight tube LED lamp applicable to the waterproof type lighting fixture has not been proposed yet.

JP 2005-56773 A JP 2001-35142 A JP 2009-302028 A Utility Model Registration No. 3139714

  The present invention has been made in view of the above circumstances, and is a straight tube type that can be used by being fitted to a waterproof type lighting fixture for an existing straight tube fluorescent lamp in place of the fluorescent light. The object is to provide an LED lamp.

In order to achieve the above object, one of the present inventions (first invention) includes a luminaire main body having a pair of sockets, and a straight tube fluorescent lamp mounted between the sockets. Fits in both ends of the fluorescent lamp so as to be movable in the longitudinal direction, and has a substantially cylindrical cover cap that is screwed onto the socket body of both sockets, and is movable in the longitudinal direction at both ends of the fluorescent lamp. A substantially cylindrical elastic waterproof packing that is fitted between the cap and the outer peripheral surface of the fluorescent lamp and moves forward in synchronization with the caps. In the state where the pair of pin terminals are electrically connected to the connection terminals of the two socket bodies, the caps are respectively screwed into the socket bodies and the fluorescent lamp is attached to the fixture body. To lighting equipment, A straight tube LED lamp can be mounted in conformity to the instrument body in place of the serial fluorescent lamp,
A lamp body using a plurality of LEDs arranged in a circular tubular body as a light source;
A mounting end provided fixed to both ends of the lamp body,
The mounting end portions are smaller in diameter than the tube diameter of the tubular body, and the holding cylindrical portion in which the cover cap is movably fitted in the longitudinal direction with the packing interposed therebetween, and both the cylindrical portions A pair of pin terminals adapted to be electrically connected to the connection terminals of the socket bodies;
The length from the tip of the one cylindrical portion to the tip of the other cylindrical portion is set to the same or substantially the same length as the overall length of the fluorescent lamp,
The two cylindrical portions advance the cap and screw into the socket body in a state where the pin terminals are electrically connected to the connection terminals of the socket bodies, and release the screw engagement. It is characterized in that it is set to a length with a forward / backward moving part that can be moved backward.

  In the present invention, the term “waterproof” is used as a concept including the meaning of “dustproof”. Further, “the total length of the fluorescent lamp” means “the length from the tip of one base part provided at both ends of the straight tube fluorescent lamp to the tip of the other base part”.

  Another invention of the present invention (second invention) is a straight tube LED lamp according to the first invention, wherein the LED lamp is waterproof.

  In the present invention, the LED may employ a configuration in which a desired number of LEDs are arranged at a desired interval on a substrate fixed in the tubular body of the lamp body (third invention).

  In the present invention, the lamp body may be configured to include a rectifier and a voltage control circuit provided in the tubular body.

The present invention has the following effects.
(1) It can be used by being fitted to a lighting fixture body of a waterproof type lighting fixture for an existing straight tube fluorescent lamp in place of the fluorescent lamp.
(2) A straight tube LED lamp can be mounted while maintaining the waterproof function of the lighting fixture.
(3) It can be easily mounted and used on the fixture body of the lighting fixture.
(4) According to 2nd invention, in addition to the said effect, straight tube | pipe type LED lamp itself also has a waterproof effect.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows schematically the structure of the straight tube | pipe type LED lamp of one Embodiment of this invention, Comprising: The same figure (a) is the front view of the whole lighting fixture which shows the state which mounted | wore the lighting fixture main body, FIG. 2B is a plan view showing the lamp, and FIG. 3C is a front view showing an enlarged part of the lighting fixture. It is a figure which shows schematically the structure of the said straight tube | pipe type LED lamp, Comprising: The figure (a) is a perspective view which shows a part of said lamp, The figure (b) is also a front view, The figure (c) is the figure. FIG. 4B is an enlarged cross-sectional view taken along the line AA in FIG. 4B, and FIG. 4D is a plan explanatory view schematically showing a configuration in which the lamp main body and the mounting end portion of the lamp are separated. It is a figure which shows roughly the structure of the socket employ | adopted as the said lighting fixture, Comprising: The figure (a) is a side view, The figure (b) is a longitudinal cross-sectional view, The figure (c) is a front view. . It is explanatory drawing which shows schematically the structure of the cover cap employ | adopted as the said lighting fixture, Comprising: The figure (a) is a longitudinal cross-sectional view, The figure (b) is a front view. It is a figure which shows schematically the structure of the elastic waterproof packing employ | adopted as the said lighting fixture, Comprising: The figure (a) is a longitudinal cross-sectional view, The figure (b) is a front view, The figure (c) is a rear view. is there. It is a longitudinal cross-sectional view which shows schematically the structure which inserted the said packing in the said cap and accommodated (stored). It is a perspective view which shows roughly the structure of the ring provided in the said cap. It is explanatory drawing which shows roughly the process of mounting | wearing the said straight tube | pipe type LED lamp to the lighting fixture main body of the said lighting fixture, Comprising: The figure (a) is for holding | maintaining the said packing and cap for the mounting | wearing edge part of the said lamp | ramp. An explanatory view schematically showing a configuration in a state of being fitted to a cylindrical portion, and FIG. 4B is an explanatory view schematically showing a configuration in a state in which the lamp is mounted on the instrument body. It is a figure which shows roughly the structure of the lighting fixture for the existing waterproof type straight tube | pipe fluorescent lamps which apply the said lamp | ramp of this invention, Comprising: The same figure (a) attached the said fluorescent lamp to the lighting fixture main body. The front view of the whole lighting fixture which shows a state, The figure (b) is a front view which shows the said fluorescent lamp, The figure (c) is explanatory drawing which shows the process of mounting | wearing the said fixture main body with the said fluorescent lamp, Fig. (D) is a longitudinal sectional view schematically showing the configuration of a cover cap adopted in the lighting fixture, and Fig. (E) is a longitudinal sectional view schematically showing the configuration of an elastic waterproof packing adopted in the lighting fixture. FIG.

  Hereinafter, an example of an embodiment of the present invention will be described with reference to the drawings. In addition, about the lighting fixture main body 10 of the lighting fixture 1, since it is the same as the fixture main body 10 disclosed and demonstrated in FIG. 9 including the cover cap 4 and the elastic waterproofing packing 5, it attaches | subjects the same code | symbol and abbreviate | omits description. To do. However, some configurations and operations may be supplementarily described.

  1 to 8 show an embodiment of the present invention. The straight tube LED lamp 100 of the present embodiment uses an LED (light emitting diode) as a light source and is configured in a 40W type.

  As shown in FIGS. 1 to 8, the straight tube LED lamp 100 of the present embodiment includes a lamp body 7 and mounting end portions 8 fixed to both ends of the lamp body 7. Yes.

  The lamp body 7 is configured using a plurality of LEDs (light emitting diodes) as a light source. The lamp body 7 according to the present embodiment includes a substrate 71 that is fixed in a circular tubular body 70 having a desired diameter and a predetermined length and is provided from one end to the other end of the tubular body 70. A plurality of LEDs 72... 72 are arranged at substantially constant intervals. In the present embodiment, a white light emitting diode (white LED) is employed as the LED 72. In the present embodiment, for example, 96 LEDs 72 are provided. In the present embodiment, the LEDs 72 are arranged in a line in a substantially straight line. In this case, a configuration in which a plurality of LEDs are arranged may be employed.

  The diameter of the tubular body 70 of this embodiment is set to about 30 mm. The length of the tubular body 70 is set according to the overall length of the LED lamp 100. This point will be described in detail later.

  The tubular body 70 of the present embodiment has a pair of plastic semi-cylindrical (semi-circular tubular) cover bodies 70a and 70b (tube constituent bodies) having a predetermined length, and is provided with waterproof and dustproof properties. It is fixed and formed by. One cover body 70a is made of a transparent or translucent translucent material. In this case, for the one cover body 70a, for example, a material colored with a color such as colorless or white or milky color can be adopted.

  The other cover body 70b is made of a non-translucent material. On the outer wall surface of the cover body 70b, a heat-dissipating projection 70c is formed on substantially the entire wall surface to provide a heat dissipation function.

  As shown in FIG. 2C and the like, the substrate 71 is fixed in the tubular body 70 with the LEDs 72 facing the one cover body 70a (translucent cover body). Thereby, the light projected from each LED 72 passes through the cover body 70a and is irradiated as illumination light.

  In the tubular body 70, a rectifier 73 (AC / DC converter) and a pressure control circuit (not shown) such as a transformer are fixedly provided. In the present embodiment, as shown in FIG. 2C, an example is disclosed in which a rectifier 73 and the like are fixedly provided on the surface of the substrate 71 opposite to the LED 72 side. The rectifier 73 is electrically connected to a pin terminal, which will be described later, and is electrically connected to a pressure control circuit. Each LED 72 is electrically connected to a pressure control circuit.

  Both mounting end portions 8 are made of hard plastic or the like, and are fixed to both end portions of the lamp body 7. The both mounting end portions 8 of the present embodiment include a holding column portion 80 and a fitting tube portion 81 provided integrally with the rear end portion of the column portion 80, and the tube portion 8 is connected to the lamp body. 7 is fitted to the end of the tubular body 70, provided with waterproof and dustproof properties and fixed by adhesion or the like. Further, both mounting end portions 8 are provided so as to protrude from the tip thereof, and are engaged with the connection terminals 33 and 33 of the socket body 31 of the instrument body 10 so as to be detachably engaged and electrically connected. A pair of pin terminals 82 is provided.

  The holding cylindrical portions 80 of the mounting end portions 8 are smaller in diameter than the tube diameter (diameter) of the tubular body 70, and the packing 5 is accommodated in the cover cap 4 so that the cylindrical portion 80, the cap 4, The cap 4 is formed in a thickness (diameter) that can be fitted so as to be movable in the longitudinal direction. Both cylindrical portions 80 of this embodiment are set to have a diameter of 25 mm (substantially the same thickness as the arc tube 20 of the fluorescent lamp 2).

  In addition, both the cylindrical portions 80 are moved forward to the socket body 31 by moving the cap 4 forward in a state where both the pin terminals 82 are engaged and electrically connected to the connection terminals 33, 33 of the socket body 31. The length is set such that a forward / backward moving part 9 (playing part) that can be screwed and released by releasing the screwing is added (see FIGS. 1C and 8).

  The total length of the LED lamp 100, that is, the length dimension from the tip of the cylindrical portion 80 of one mounting end 8 to the tip of the cylindrical portion 80 of the other mounting end 8 is the same as that of the fluorescent lamp 2. The overall length, that is, the length from the tip of the one base 21 to the tip of the other base 21 is set to be the same or substantially the same. In this embodiment, it is set to 1198 mm.

  The length of the tubular body 70 of the lamp body is a length obtained by subtracting the length of both cylindrical portions and the thickness of the fitting tube portions 81 from the overall length (1198 mm) of the LED lamp 100. Is set.

  The straight tube LED lamp 100 of this embodiment has the above-described configuration. Next, an example of the mounting method of the LED lamp 100, an operation effect, and the like will be described.

  As shown in FIG. 8 (a), similar to the procedure for mounting the fluorescent lamp 2, first, the ring 6 is housed in the fitting tube portion 40 of both caps 4 and the packing 5 is placed in the first cylindrical portion 50. Store in the cap 4 from the side. Next, in the above state, the caps 4 are fitted together with the packings 5 from the annular flange portion 44 side to the cylindrical portions 80 at both ends of the LED lamp.

  Then, in the above state, as shown in FIG. 8B, the pair of pin terminals 82 at both ends of the LED lamp are engaged with and electrically connected to the connection terminals 33 of the socket body 31 of the instrument body 10. The LED lamp 100 is mounted on the instrument body 10 by screwing and tightening the screw cylinder portion 42 of the cap 4.

  In the mounted state, the second cylindrical portion 52 of the packing 5 is fitted (engaged) into the annular recess 34 in the same manner as described above, and the flat surface side of the annular flange 51 comes into close contact with the front surface of the socket body 31. At the same time, the tapered portion of the flange 51 fits closely with the tapered wall 41 of the cap 4.

  On the other hand, as shown in FIG. 8B, the first cylindrical portion 50 of the packing 5 is pressed by the tightening of the screw cylinder portion and elastically deformed through the annular groove 53 to be compressed (contracted). At the same time, the portion of the concave groove 53 of the cylindrical portion 50 is elastically deformed and protrudes inward, and closely contacts the outer peripheral wall surface of the cylindrical portion 80 in an annular shape. As a result, the groove 53 has an O-packing action.

  Therefore, the LED lamp is attached to both the sockets 3 by attaching waterproof and dustproof functions to both ends and attached to the instrument body 10.

  Also, the screw tube portions 42 of both caps 4 are loosened to release the screw engagement, retreat on the cylindrical portion 80, and disengage the pin terminal from the connection terminal, thereby removing the LED lamp from the instrument body. be able to.

  According to the procedure described above, the LED lamp is used by being mounted on an existing lighting fixture for a fluorescent lamp, but when used, the ballast wiring arranged in the chassis 11 of the fixture body 10 is cut. Therefore, it is preferable to perform a construction for directly connecting the wiring.

According to the straight tube LED lamp of the present embodiment, the following operational effects are obtained.
(1) It can be used by being fitted to a lighting fixture body of a waterproof type lighting fixture for an existing straight tube fluorescent lamp in place of the fluorescent lamp.
(2) It can be used by simply mounting it on the instrument body by the same operation as the fluorescent lamp.
(3) The straight tube LED lamp can be mounted using the waterproof function of the existing lighting fixture as it is.
(4) The straight tube LED lamp itself also has a waterproof effect.

  In addition, although the example comprised in 40W type | mold was disclosed by this embodiment, this invention is applicable also to the straight tube | pipe type LED lamp of 20W type, 80W type, or 110W type | mold, for example. However, the length of the LED lamp is set according to the size of the instrument body.

  Further, the above-described embodiment is disclosed as an example, and the present invention is not limited to the above-described embodiment, and can be arbitrarily changed without departing from the technical idea described in the claims. Is.

DESCRIPTION OF SYMBOLS 1 Lighting fixture 2 Straight tube | pipe type fluorescent lamp 3 Socket 4 Cover cap 5 Elastic waterproof packing 7 Lamp main body 8 End part 9 for mounting 9 Moving part 10 Lighting fixture main body 30 Mounting part 31 Socket main body 32 Screw groove 33 Connection terminal 40 Fitting cylinder part 42 Screw cylinder portion 43 Screw groove 50 First cylindrical portion 52 Second cylindrical portion 70 Circular tubular body 71 Substrate 72 LED
80 Column for holding 82 Pin terminal

Claims (4)

A luminaire main body having a pair of sockets provided opposite to each other, a straight tube fluorescent lamp mounted between the two sockets, and fitted to both ends of the fluorescent lamp so as to be movable in the longitudinal direction, and the sockets of both the sockets A substantially cylindrical cover cap that is screwed onto the main body, and is fitted between both ends of the fluorescent lamp so as to be movable in the longitudinal direction, and is interposed between the cap and the outer peripheral surface of the fluorescent lamp, And a substantially cylindrical elastic waterproof packing that moves forward in synchronization with the caps, and a pair of pin terminals at both ends of the fluorescent lamp are electrically connected to the connection terminals of the socket bodies. A straight tube that can be fitted to the fixture body instead of the fluorescent lamp to an existing lighting fixture that is configured to screw both caps into the socket body and attach the fluorescent lamp to the fixture body. LED light A-flops,
A lamp body using a plurality of LEDs arranged in a circular tubular body as a light source;
A mounting end provided fixed to both ends of the lamp body,
The mounting end portions are smaller in diameter than the tube diameter of the tubular body, and the holding cylindrical portion in which the cover cap is movably fitted in the longitudinal direction with the packing interposed therebetween, and both the cylindrical portions A pair of pin terminals adapted to be electrically connected to the connection terminals of the socket bodies;
The length from the tip of the one cylindrical portion to the tip of the other cylindrical portion is set to the same or substantially the same length as the overall length of the fluorescent lamp,
The two cylindrical portions advance the cap and screw into the socket body in a state where the pin terminals are electrically connected to the connection terminals of the socket bodies, and release the screw engagement. A straight tube type LED lamp characterized in that it is set to a length to which a forward / backward moving part that can be moved backward is added.   The straight tube LED lamp according to claim 1, wherein the straight tube LED lamp is waterproof.   2. The straight tube LED lamp according to claim 1, wherein a desired number of the LEDs are arranged at a desired interval on a substrate fixed in the tubular body of the lamp body.   The straight tube LED lamp according to claim 1 or 3, wherein the lamp body includes a rectifier and a voltage control circuit provided in the tubular body.

Images