JP2008066043A - LED lighting device for ceiling T-bar - Google Patents

Abstract

【Task】
Provided is an LED lighting device for a ceiling that is light and suitable for a ceiling T-bar system, is compact and can be easily attached to and fixed to a T-bar on the ceiling, and has a small amount of heat generation.
[Solution]
An LED lighting device for a T-bar in a ceiling T-bar system, which is provided with two parallel double T-bars that form an air-conditioning inlet or outlet, and each T-bar of the double T-bar has a cross-sectional ceiling bottom surface A long thin illuminating device made of an LED light emitting body is placed at an appropriate position on the opposite edge of the double T-bar, with an inverted T-shape extending horizontally, and the length of the illuminating device is long. An LED lighting device for a ceiling T-bar, in which both sides of the scale base member are provided with fixing portions to the T-bar.
[Selection] Figure 6

Description

  The present invention relates to an LED lighting device for a ceiling T-bar that is attached to a ceiling and illuminates a room.

Conventionally, incandescent lamps, ceiling-exposed fluorescent lamps, and ceiling-embedded fluorescent lamps have been used as lighting fixtures that are attached to the ceiling to illuminate a room.
Incandescent lamps have been used for a long time since the old days because of their ease of installation and atmosphere, but there were problems with their lifetime, high-temperature heat generation, and brightness against current consumption. For this reason, fluorescent lamp luminaires are used in most homes and offices.
Among these lighting fixtures, an embedded fluorescent lamp lighting fixture (for example, Patent Document 1) attached directly to the ceiling has an advantage that the ceiling space can be felt widely as shown in FIG. The ceiling board opening corresponding to the fluorescent lamp base fixture b and the base opening c are incorporated, and a heavy power supply part d such as a ballast or an inverter circuit is required. It must be supported directly on the bar e or hung with bolts f etc. in the space behind the ceiling, and since it is heavy, the construction work is a set of two people, and further, with a stabilizer d etc. Heat generation was not negligible and was a cooling load for air conditioning.
In recent years, a ceiling T-bar system is often used as the ceiling structure as seen in the above-mentioned Patent Document 1 and FIGS. 14 and 15. In this ceiling T-bar system, an elongated T-bar e having an inverted T-shaped cross section is stretched around the ceiling, and two rows of double T-bars are arranged at intervals of 2 to 5 cm, and the air-conditioning inlet h and air-conditioning outlet are arranged. i is formed, and the ceiling board g etc. is locked and placed on the inverted T-shaped edge, and the ceiling board / lighting is placed on the edge of about 5-15mm protruding horizontally from a pair of inverted T bars.・ Since the T-bar is lightweight and narrow just by locking and mounting the air-conditioning outlet, etc., there are fewer anchor bolts for supporting from the ceiling, making installation easier and completing in a short period of time. Since it can simplify ceiling construction, it is often used in various buildings.

By the way, a non-white LED having a small calorific value and good luminous efficiency has been developed, and as disclosed in Patent Document 2, a flat EL element is used for small-scale lighting such as an interior lamp. As disclosed in Document 3, it is used as a small-scale nightlight, but a ceiling LED lighting apparatus used in a normal room has not been put to practical use. However, recently, an illumination white power LED lamp having a luminous efficiency of 70 lm / W and a luminous flux of 245 lm has been developed, and it has become possible to provide LED lighting fixtures for ceilings used in ordinary rooms.
Moreover, in the ceiling T-bar system having the above-described ceiling structure, two sets of double T-bars that form air-conditioning inlets or outlets at intervals of about 2.5 to 5 cm are spanned, but fluorescent lamps, etc. 14 and 15, as shown in FIGS. 14 and 15, even if the folding T-bar is lightweight and narrow, in addition to the T-bar, an anchor bolt or a supporting device is separately provided from the ceiling. 2) was installed, and lighting fixtures such as fluorescent lamps and air-conditioning outlets were installed, and the construction was troublesome.
JP-A-5-89714 Japanese Patent Laid-Open No. 1-281603 Utility Model Registration No. 311280

  The present invention has been made in view of the above-described conventional situation, and has been made in view of the fact that there is no lighting device that takes advantage of the light even when the folding T-bar is light and thin, and the ceiling T-bar system is It is an object of the present invention to provide a bright LED lighting device for a ceiling that is light, fit, compact, and can be easily mounted and fixed on a T-bar on the ceiling, and generates a small amount of heat.

In order to solve the above-mentioned problem, the invention of claim 1 is an LED lighting device for a T-bar of a ceiling T-bar system, provided with two parallel double T-bars forming an air-conditioning inlet or outlet, Each T-bar of the double T-bar has an inverted T-shaped edge with the cross section of the bottom surface of the ceiling extending horizontally, and an illumination composed of an LED light emitter at an appropriate position on the opposite edge of the double-T bar. An LED lighting device for a ceiling T-bar, in which the device is mounted, and mounting and fixing portions to the T-bar are provided on both sides of the long base member of the lighting device.
The invention of claim 2 is an LED lighting device for a T-bar of a ceiling T-bar system, wherein the T-bar forms a groove portion having an inverted L-shaped upper end portion in a cross-sectional shape, and the mounting fixing portion extends upward. The ceiling T-bar according to claim 1, wherein an elastic member of a scale is provided, and an end of the elastic member engages with a groove of the T-bar to press and fix the lighting device against the edge. LED lighting device.

  The invention of claim 3 is an LED lighting device for a T-bar of a ceiling T-bar system, wherein the ceiling lower surface portion of the partitioning T-bar has an inverted T-shape and ends of both edges projecting horizontally There is a U-shaped groove that opens in the opposite direction, with a partition fixing bolt groove that opens in the longitudinal direction in the center, and a power cord through hole that penetrates to the outside on the side wall at the back of the fixing bolt groove The flat side portion of the base member of the long thin illuminating device made of the LED illuminator is inserted and fixed in the U-shaped groove that opens oppositely, and the power cord of the illuminating device is inserted into the bolt groove Thus, the LED lighting device for a ceiling T-bar is provided outside through the power cord through hole and connected to a DC power source.

  According to the first and second aspects of the present invention, since the lighting device is provided on the double T-bar, most of the conventional fluorescent lamp lighting device can be a ceiling board, and a clean ceiling design is obtained. The ceiling is beautifully finished, and the lighting device is light and small, and the construction is simple. In addition, the LED generates less heat than the amount of light. Therefore, the power consumption of the lighting itself and the air conditioning power consumption can be reduced.

  According to the present invention of claim 3, since the lighting device is provided on the partitioning T-bar, the conventional fluorescent lamp lighting device can be removed, and a clean ceiling design can be achieved, and the ceiling is beautifully finished. In addition, the use of light and small LED light emitters in the lighting device makes it easier to install. Furthermore, because LEDs generate less heat than light, the cooling load on air conditioning is reduced, and the power of the lighting itself is reduced. Consumption and air-conditioning power consumption can be reduced.

The T-bar ceiling structure which is the premise of the present invention is a ceiling T-bar system in which a T-bar having an inverted T-shaped cross section is stretched and a ceiling board or the like is locked and placed on an inverted T-shaped edge. The T-bar itself is a thin bar with a width of 15 to 25 mm. At least the bottom surface of the ceiling has an inverted T-shaped cross-section, and a pair of inverted T-bars is mounted on the edge of about 5 to 15 mm extending horizontally. -The air-conditioning outlet etc. is locked and placed.
Moreover, the white power LED lamp for illumination (CL-L100 manufactured by Citizen Electronics Co., Ltd.) is thin as 7 mm × 50 mm × 2 mm, and has a luminous efficiency of 70 lm / W and a luminous flux of 145 lm. It pays attention to the fact that a white illuminant having a desired light quantity exceeding that of a fluorescent lamp can be obtained.
Hereinafter, preferred embodiments of the LED lighting device for a ceiling T-bar of the present invention will be described with reference to the drawings.

First, as Example 1, an LED lighting device for a T bar of a ceiling T bar system using two parallel double T bars will be described.
[Ceiling T Bar System]
As shown in FIGS. 1 and 2, the ceiling T-bar system used in Embodiment 1 has T-bars 21 and 22 arranged in a substantially square section, and an air-conditioning suction port 34 with an interval of about 2.5 cm is formed in the center thereof. Two parallel double-row double T-bars 23 are spanned and the bottom width of the T portion of each T-bar is about 2.5 cm, and the ceiling board 31 is provided between the section T-bars 21 and 22 and the double T-bar. A small ceiling board 32 and a rectangular air conditioning outlet 35 are arranged in the center between the two sets of double T bars. Further, as shown in FIG. 6, the cross-sectional shape of these T bars 23 is an inverted T-shape on the ceiling lower surface side, and has an edge 231 of about 15 mm extending horizontally from the inverted T bar. Is used to place the ceiling boards 31, 32, the air conditioning outlet 35, and the like. The T bar 23 is formed with an inverted L-shaped groove 232 at the upper end of the cross-sectional shape, and the LED lighting device 1 is disposed at an appropriate position of the double T bar 23 forming the air conditioning suction port 34. Reference numerals 33a and 33b are blindfold plates that cover the working space, and the upper end of each T-bar is supported by a support member at an appropriate position on the ceiling foundation.

[Lighting device]
The LED illuminating device 1 of Example 1 is as shown in FIGS. 3 to 5 and shows the whole LED illuminating device 1 for ceiling, and the light emitter 11 composed of a set of a plurality of LEDs is 4 mm × 40 mm. A long light-emitting element in which thin light-emitting elements of × 0.75 mm are assembled. For example, a long light-emitting body having a desired length of about 100 cm, which is thin and is much lighter and smaller than a fluorescent lamp.
The light-emitting body 11 has input terminals (not shown) at both ends, and is assembled and attached to substantially the center of the long base member 12 to be connected to the connectors 13a and 13b. The connectors 13a and 13b The power cords 15a and 15b are connected to the plug socket members 14a and 14b. The left half of the aggregate of the light emitters 11 is supplied with power from the power cord 15a and the power plug 16, and the right half of the aggregate of the light emitters 11 is connected. Is supplied with power from the power cord 15 b and the power plug 16.
As shown in FIG. 5, the base member 12 has a flat substrate portion 121 having a width of about 3 cm and a pair of vertical walls 122 on both sides of the substrate portion 121. As described above, the light emitter 11 is fixed to the center of the ceiling surface at the bottom of the substrate 121 of the member 12.
Further, the power plug 16 is connected to a socket 18 from a DC power supply device 4 to be described later, and DC 7V to 15V is supplied. Since the power source of the LED lighting device 1 is a DC power source with polarity, the power plug 16 has three, the center pin is a plus (+) pole, and the left and right end pins are minus (−) poles. Direct current is supplied from the receiving socket corresponding to the polarity.
The base member 12 is made of an extruded product of aluminum, and electrode lead wires (not shown) are wired using a concave groove in the longitudinal direction. Of course, the base member 12 is made of aluminum. Alternatively, it may be a molded product made of plastic.

[Mounting fixing part]
As shown in FIG. 6, the vertical wall 122 on both sides of the long base member 12 of the LED lighting device 1 is provided with a mounting fixing portion for attaching the LED lighting device 1 to the double T bars 23 in two parallel rows. An inverted L-shaped groove 232 is formed at the upper end of the cross-sectional shape of the pair of T-bars 23, 23, and the mounting and fixing portion is provided with long and rod-like elastic members 17a, 17b extending upward. This elastic member 17a 17b is engaged with two fixing holes 123 and 124 (see FIGS. 3 and 4) so as not to rotate with respect to the vertical wall 122, and the elastic members 17a and 17b are bent slightly, and the upper ends 172 of the elastic members 17a and 17b are The LED lighting device 1 is pressed against the upper surface of the edge 231 and engaged with the groove portion 232 of the T bar 23 to be fixed.
In this embodiment, the elastic members 17a and 17b are rod-shaped. However, the elastic members 17a and 17b may be plate-shaped, and the point is that the LED lighting device 1 can be pressed and fixed, and the lower ends of the elastic members 17a and 17b. As the fixing means, screws, eyelets, adhesives, or the like may be used.

[Power supply unit]
The DC power supply 4 that supplies power to the socket 18, the plug 16, and the light emitter 11 of the first embodiment will be described with reference to FIG. 7.
The light emitter 11 according to the present invention is an assembly of a plurality of LEDs, and the applied voltage can be changed by arranging the LEDs in parallel, in series, or a combination circuit configuration thereof. In this embodiment, the light emitter having an optimum operating voltage of DC12V is used. Using.
As shown in the block diagram shown in FIG. 7, the DC power supply device 4 for supplying power to the light emitter receives a commercial AC 100V power supply via a switch 41, and transforms 100V to about 18V by a transformer 42. Is rectified to a direct current by a diode bridge 43, smoothed by a large-capacitance capacitor 44, and a desired DC constant voltage of 7V to 15V is supplied by a power supply stabilization circuit of a three-terminal regulator IC 45. The voltage at is set to DC12V.

  As described above, the LED lighting device for the ceiling T-bar of Example 1 is smaller and lighter than the fluorescent lamp having the same brightness. Therefore, the parallel two-row double T-bar forming the conventional air-conditioning inlet or outlet is used. The LED lighting device can be placed on the front and the fluorescent lamps can be removed so that the ceiling design can be made clean, the ceiling can be finished beautifully, and the LED lighting device 1 can be attached to the T-bar with one touch. Because it is lightweight and compact, it is easy to install, and even one worker can install it. Furthermore, because LEDs generate less heat than light, the cooling load on the air conditioning is reduced, and the lighting itself The power consumption and the air conditioning power consumption can be reduced.

Next, as a second embodiment, a T-bar LED illumination device of a ceiling T-bar system using a partitioning T-bar will be described.
[Ceiling T Bar System]
As shown in FIG. 8, the ceiling T-bar system used in the second embodiment has a T-bar 21 in a horizontal direction and a double-T bar 23 in a vertical direction in a substantially square section, and a partitioning T-bar in the center. As shown in FIG. 9, the upper end portion 255 of the partitioning T-bar 25 is supported on the ceiling base portion by a support tool 256 (see FIG. 10), and two parallel double rows. A narrow air conditioning inlet 34 and an air outlet 36 are provided in the gap between the T bars 23, 23.
Further, as shown in FIG. 9, the partitioning T-bar 25 has an inverted T-shaped cross-sectional shape on the ceiling lower surface side, and has an edge 251 protruding horizontally from the inverted T-bar. Used to place the ceiling board 31 and other equipment. In the longitudinal direction of the bottom surface facing the ceiling, a U-shaped groove 252 that opens oppositely is provided, and a partition fixing bolt groove 253 extending in the longitudinal direction is provided in the center, and this fixing bolt groove 253 is provided. Can be bolted together at any position, usually for instruments that should be secured to the ceiling. A power cord through hole 254 that penetrates to the outside is provided in the back side wall of the fixing bolt groove 253, and the through hole 254 opens above the ceiling board 31, and the power cord 15 and the plug 16 of the LED lighting device 1 are opened. Is connected to a socket 18 to which a DC power supply is supplied.

[Lighting device]
As shown in FIGS. 10-12, the structure different from Example 1 of the LED illuminating device 1 of Example 2 does not have the vertical wall 122 in Example 1, the upper surface of the base member 12 is flat, The attachment means is not an elastic member, and the base of the long thin illuminating device 1 made of an LED light emitter is formed in the U-shaped groove 252 that opens oppositely on the lower surface of the edge 251 at both ends of the partitioning T-bar 25. The flat side portion 125 of the member 12 is inserted and fixed. The fixing means includes bolts 5 inserted into bolt locking portions 19 at both ends of the lighting device 1 and engaged with the fixing bolt grooves 253 to be stopped. The fixing means of the LED lighting device 1 may be a one-touch fixing tool such as another known snap fastener.
Further, the power cord 15 of the LED lighting device 1 is inserted into the bolt groove 253 opened at both ends of the partitioning T bar 25 from the side, and from the power cord through hole 254 of the partitioning T bar 25 at a predetermined position. It goes out and is connected to the socket 18 of the DC power supply. Other configurations are the same as those of the first embodiment, and thus the description thereof is omitted.

As described above, in Example 2, since the LED lighting device 1 is provided on the partitioning T-bar 25, the conventional fluorescent lamp lighting device can be removed, and a clean ceiling design can be achieved, and the ceiling is beautiful. Finished, and by using a light-emitting LED light-emitting body for the lighting device, it is easy to install and can be installed by one worker. Furthermore, the LED generates less heat than the light. The cooling load on the vehicle can be reduced, and the power consumption of the lighting itself and the air conditioning power consumption can be reduced.
Of course, the present invention is not limited to the above-described embodiments as long as the features of the present invention are not impaired.

Schematic bottom view of the ceiling T-bar system of Example 1 of the present invention Sectional view at (2)-(2) in FIG. Sectional drawing of the LED lighting apparatus of Example 1 of this invention Bottom view of FIG. Sectional view from the longitudinal direction of FIG. Sectional drawing which was mounted and fixed to the ceiling T bar of the illuminating device of Example 1. 1 is a block diagram of a power supply device according to a first embodiment and a second embodiment of the present invention. Schematic bottom view of the ceiling T-bar system of Example 2 of the present invention Sectional drawing of the T-bar for partitioning of the ceiling T-bar system of Example 2 which is not equipped with the illuminating device Sectional drawing which attached LED lighting apparatus of Example 2 to T bar for partitions Bottom view of FIG. Sectional drawing from the longitudinal direction fixed to the ceiling T bar of the illuminating device of Example 2. A perspective view explaining a conventionally known fluorescent lamp illumination device Schematic bottom view explaining conventionally known ceiling T-bar system and fluorescent lamp It is sectional drawing of FIG. 14 conventionally well-known.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Illuminating device, 11 ... Luminescent body, 12 ... Base member, 121 ... Substrate part,
122 ... vertical wall, 123, 124 ... fixing hole, 125 ... flat side, 13, 13a, 13b ... connector,
14a, 14b ... Socket member with plug, 15,15a, 15b ... Power cord,
16 ... Plug for power supply, 17a, 17b ... Elastic member, 171 ... Lower end, 172 ... Upper end,
18 ... Socket, 19 ... Bolt locking part,
21, 22 ... T bar, 23 ... Double T bar, 231 ... Edge, 232 ... Groove,
25 ... T-bar for partitioning, 251 ... Edge, 252 ... U-shaped groove,
253 ... Fixing bolt groove, 254 ... Power cord through hole, 255 ... Upper end, 256 ... Supporting tool,
31, 32 ... ceiling boards, 33a, 33b ... blindfold plates,
34 ... Air conditioning inlet, 35, 36 ... Air conditioning outlet,
4 ... DC power supply device, 41 ... switch, 42 ... transformer,
43 ... Diode bridge, 44 ... Large capacity capacitor,
45. Terminal regulator IC,
5 ... Bolt,

Claims (3)

  An LED lighting device for a T-bar in a ceiling T-bar system, which is provided with two parallel double T-bars that form an air-conditioning inlet or outlet, and each T-bar of the double T-bar has a cross-sectional ceiling bottom surface A long thin illuminating device made of an LED light emitting body is placed at an appropriate position on the opposite edge of the double T-bar, with an inverted T-shape extending horizontally, and the length of the illuminating device is long. An LED lighting device for a ceiling T-bar, characterized in that mounting and fixing portions to the T-bar are provided on both sides of the scale base member.   An LED lighting device for a T-bar in a ceiling T-bar system, wherein the T-bar has a groove portion having an inverted L-shape at an upper end of a cross-sectional shape, and the mounting fixing portion is provided with a long elastic member extending upward. 2. The LED lighting device for a ceiling T-bar according to claim 1, wherein an end portion of the elastic member is engaged with a groove portion of the T-bar to press and fix the lighting device against the edge.   An LED lighting device for a T-bar of a ceiling T-bar system, in which a ceiling T-bar underside of the cross-sectional shape of the partitioning T-bar has an inverted T-shape and is open facing the ends of both edges extending horizontally. A partition fixing bolt groove that opens in the longitudinal direction in the central portion and a power cord through hole that penetrates to the outside on the side wall at the back of the fixing bolt groove are provided at the center portion, and are opened facing each other. A flat side portion of a base member of a long thin illuminating device made of an LED illuminator is inserted and fixed into a U-shaped groove, and a power cord of the illuminating device is inserted into the bolt groove to insert the power cord through hole The LED lighting device for a ceiling T-bar, wherein the LED lighting device is connected to a direct current power source.

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