JP2013125603A - Led lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an LED lighting fixture having an LED array board in which an initial performance can be obtained with a simple exchange work of a power supply module, even when the driving capacity is deteriorated due to deterioration of electric components of a power supply circuit, and an effective radiation of heat to the outside can be made by avoiding multiplication of heat generation of the LEDs and heat generation of the power supply circuit, and enabling installation on the ceiling of a building with one touch.SOLUTION: The LED lighting fixture is provided integrally with a long LED light source part having an LED array board and an LED driving power supply part shorter than the LED light source on the LED light source part, and the power supply module for lighting the LEDs of the LED array board can be made detachable to the LED driving power supply part.

Description

  The present invention relates to an LED lighting apparatus in which a plurality of semiconductor light-emitting elements (hereinafter abbreviated as LEDs) are simultaneously emitted to obtain illumination light, and the influence of heat generated by light emission of the LED is reduced as much as possible. Even when the performance of the drive power supply is deteriorated, replacement maintenance of the power supply module is facilitated, and a stable lighting effect can be obtained for a long time.

  Conventionally, lighting fixtures using a fluorescent tube as a light source have been mainstream, but it takes about 3000 hours for the fluorescent tube to emit stable light emission equivalent to the standard. This also includes deterioration of ballasts, etc., and replacement of fluorescent tubes is a daily work in commercial facilities. Moreover, although the power consumption of the fluorescent tube is lower than that of the incandescent bulb, no actual method for reducing the power consumption has been proposed.

  Therefore, attention is focused on lighting fixtures employing LEDs, which are said to have a design life of about 40000 hours, which is about 10 times or more that of fluorescent tubes. There has been proposed a lighting fixture that employs this LED and can be attached to an existing socket for a fluorescent tube (for example, Patent Documents 1 and 2). In the configurations disclosed in Patent Documents 1 and 2, an LED array substrate and a lighting circuit for causing the LEDs on the LED array substrate to emit light are simultaneously enclosed in a light diffusion sleeve corresponding to a fluorescent tube. .

  In addition, for the purpose of preventing thermal interference due to the simultaneous incorporation of the LED and the drive power supply of the LED, and extending the life of the product, a drive power supply is provided outside, and the direct current power generated in the drive power supply is illuminated by a cable. The lighting fixture supplied to a main body is proposed (for example, patent document 3). The configuration disclosed in Patent Document 3 has a separate drive power supply, but in the same manner as Patent Documents 1 and 2, the LED array substrate is enclosed in a diffuser sleeve corresponding to a fluorescent tube. It is.

Utility Model Registration No. 3142651 JP 2011-165634 A JP 2011-198646 A

  By the way, although white light bulbs and fluorescent lamps have a large energy loss, most of them are directly radiated by infrared rays, so the light source generates little heat. However, LEDs that are semiconductor elements are all converted to heat except for energy consumed by visible light. In addition, since the LED package, which is one of the heat sources, has a small surface area, it can be said that it is in a thermally severe environment due to a small heat dissipation due to convection and radiation.

  As described above, the LED as a heat source has a characteristic that the electrical resistance decreases as the temperature rises.Therefore, the LED falls into a negative spiral in which the temperature rises, the resistance decreases, the current increases, the heat generation increases, and the temperature rises. Will occur. In addition, the effect of this heat causes a decrease in transparency due to deterioration of the sealing material, and warping and cracking due to the increased degree of repeated expansion and contraction, and consideration of heat countermeasures is an important issue. Yes.

  Such consideration regarding heat countermeasures must be sufficient for the LED drive power supply. The power supply circuit that constitutes the drive power supply converts the commercial AC power supply to a low-voltage direct current, and causes a large current to flow to cause the LED to emit light with high brightness, so heat generation from the resistance element or the like increases. In particular, it is known that the electrolytic capacitor is significantly deteriorated by heat, and the life is rapidly shortened when the environmental temperature exceeds the rated value. Therefore, when configuring an LED lighting apparatus, it is necessary to ensure the life of the drive power supply equivalent to or longer than the design life of about 40000 hours of the LED light source provided with the LED drive power supply unit.

  However, in the case of a fluorescent tube-type LED lighting fixture as disclosed in Patent Documents 1 and 2, the LED array substrate and the LED driving power source are enclosed at the same time, heat generated from the LED and the power circuit stays in the diffuser sleeve. Therefore, it cannot be denied that the temperature in the diffuser sleeve becomes extremely high. As a countermeasure for LED lighting fixtures with such a configuration, it is possible to consider using expensive electrical components with a large heat resistance standard in the power supply circuit by increasing the space behind the LED array substrate. Must not. In such a configuration, that is, since it is necessary to increase the volume of the portion that accommodates the electric circuit, the LED approaches the diffuser sleeve, and thus the light emission has a narrow irradiation angle. When a temperature gradient occurs in the interior, a difference occurs in the light emission state of the LED, resulting in poor practicality.

  On the other hand, Patent Document 3 is designed to consider such a problem with respect to heat generation, but the drive power source configured as a unit separate from the lighting device is fixed to the side surface of the base instrument to which the lighting device is attached. It is fixed inside the base fixture or fixed to the wall of the ceiling of the building, and the lighting device and the drive power source are connected by a cable. In such a configuration, an accessory device, which is a base instrument for stably mounting the lighting device, is necessary, which requires a large mounting operation of the drive power supply and increases the manufacturing cost and the installation operation cost. Further, when the driving power source is disposed outside the lighting device, this driving power source is exposed to the room, which is not preferable from the viewpoint of design.

  Further, since the drive power supply is deteriorated earlier than the LED of the lighting device, it must be replaced when the capacity of the drive power supply is reduced. However, it is not easy to remove the drive power from the lighting equipment installed on the ceiling of a high-rise building, and then remove the cable and install a new drive power, which is equivalent to dangerous electrical work. Therefore, it is not possible to cope with ordinary householders who do not have specialized knowledge. Moreover, when the drive power source is fixed inside the base instrument, the replacement work becomes more difficult.

  The present invention has been made in order to solve the above-mentioned problems, and it is possible to improve the heat dissipation effect while integrating the LED light source unit and the LED drive power supply unit, and to easily replace the power supply module of the LED drive power supply unit. An object of the present invention is to provide an LED lighting apparatus that can improve maintenance workability.

  Therefore, the present invention solves the above problems by means described below. That is, according to the first aspect of the present invention, a long LED power source unit provided with an LED array substrate and an LED drive power source unit shorter than the LED light source unit on the LED light source unit are integrally provided, and the LED The power supply module for lighting the LEDs on the array substrate is made to be an LED lighting apparatus that is detachable from the LED drive power supply unit.

  According to a second aspect of the present invention, a plurality of long LED light source units each including an LED array substrate and a driving power source unit shorter than the LED light source unit are integrally provided on the LED light source unit, and the LED array A power supply module for lighting the LED on the board is configured to be an LED lighting fixture that is detachable from the LED drive power supply unit.

  According to a third aspect of the present invention, in the LED lighting apparatus according to the first or second aspect, the LED light source unit and the LED drive power source unit are integrally formed of light metal.

  According to a fourth aspect of the present invention, in the LED lighting apparatus according to the first or second aspect of the present invention, means for connecting to a commercial AC power source is provided at the center of the top plate of the LED drive power source.

  According to a fifth aspect of the present invention, in the LED lighting apparatus according to the first or second aspect, a flange is formed on the side of the top plate of the LED drive power supply unit, and the flange is formed on the ceiling wall of the building. Wear on a fixed holder.

  According to a sixth aspect of the present invention, in the LED lighting apparatus according to the first or second aspect, a vent hole is formed in the LED drive power supply unit so that the inside of the LED drive power supply unit can be ventilated. To.

  According to a seventh aspect of the present invention, in the LED lighting apparatus according to the first or second aspect, a multi-connector is provided inside the LED drive power supply unit, and an end portion of the substrate of the power supply module is connected to the multi-connector. The DC power generated by the power supply module is supplied from the inside of the LED drive power supply unit to the LED array substrate of the LED light source unit.

  According to an eighth aspect of the present invention, in the LED lighting apparatus according to the seventh aspect, the multi-connector has a push-lock mechanism and holds the end portion of the substrate of the power supply module.

  According to the present invention, the LED light source unit including the LED array substrate and the LED drive power supply unit are integrally formed, and the power supply module can be attached to and detached from the LED drive power supply unit. Even when the driving capability is reduced due to the deterioration of the parts, the initial performance can be restored by only a simple replacement operation of the power supply module, and complicated electric work or the like becomes unnecessary.

  Also, by integrally forming the LED light source unit and the LED drive power supply unit with light metal, the heat generated by the LED and the heat generation of the power supply circuit are sufficiently radiated to the outside without synergisticity, so the temperature inside the LED drive power supply unit is extremely low. Can be lowered. Thereby, the thermal influence which the electric component which comprises a power supply circuit receives becomes low, and becomes a stable and long-life power supply. In addition, since such a high heat dissipation effect is obtained, it is possible to easily increase the number of LEDs in order to improve the illuminance, and it is easy to increase the size of electrical components such as electrolytic capacitors and transformers. Therefore, it is possible to use inexpensive parts with low heat resistance standards.

  Furthermore, since the LED light source unit and the LED driving power source unit are integrated, and this LED driving power source unit can be mounted on the holder fixed to the ceiling wall of the building with a so-called one-touch, there is no special tool or installation work. This eliminates the need for a base instrument or the like for attaching the LED light source unit, thereby reducing incidental expenses. Moreover, since the LED lighting fixture of this invention becomes very light weight, even if it arrange | positions on a ceiling wall, it can maintain the stable attachment state without fear of dropping.

It is a figure which shows the external appearance of the completion state of the LED lighting fixture of this invention. It is a figure which shows the internal structure of the principal part of the LED lighting fixture of this invention. It is a figure which shows the internal structure of the principal part of the LED lighting fixture of this invention. It is a figure which shows the structure of the power supply module of the LED lighting fixture of this invention. It is a figure which illustrates the holding clip of the LED lighting fixture of this invention. It is a figure which shows the other structural example of the plug part of the LED lighting fixture of this invention. It is a figure which shows the other structural example of the plug part of the LED lighting fixture of this invention. It is a figure which shows the example of arrangement | positioning in the room | chamber interior of the LED lighting fixture of this invention. It is a figure which shows the external appearance of the completion state which shows the other example of the LED lighting fixture of this invention. It is a figure which shows the example of the multiple lamp type of the LED lighting fixture of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a view showing the appearance of the LED lighting apparatus 1 according to the present invention in a completed state. FIG. 2 shows a longitudinal section of the main part thereof, and FIG. 3 shows a transverse section thereof. As shown in FIG. 1, the LED lighting apparatus 1 of the present invention is mainly composed of a long LED light source unit 2 and an LED drive power source unit 3 that is shorter than the LED light source unit 2, and is integrally formed of a light metal such as aluminum. Has been.

  An LED array substrate 6 on which a plurality of LEDs 5 are disposed is fixed to the lower surface of the base substrate 4 constituting the LED light source unit 2 by an appropriate means such as screwing with an adhesive or a spacer. Angles 4a are formed on both side portions of the base substrate 4 in the longitudinal direction, and both end portions 7a of the light diffusion sleeve 7 containing a light diffusing agent are attached to the angles 4a.

  Next, the LED drive power supply unit 3 disposed on the upper surface of the base substrate 4 of the LED light source unit 2 is a rectangular bowl-shaped hollow body, one side is closed, and the other is formed with an opening 3a. Yes. Then, a plug 8 and a multi-connector 9 for connecting to a commercial AC power source are fixed at the center of the inside, the plug 8 and the multi-connector 9 are connected by a lead wire 10, and the commercial AC power source is led to the multi-connector 9. I am doing so.

  A guide groove 3b is formed on the inner wall of the LED drive power supply unit 3. The guide groove 3b guides the side end of the wiring board 11a of the power supply module 11 so that it can be connected to the multi-connector 9. Yes. As shown in FIG. 4, the power supply module 11 has an end of a wiring board 11a fixed to the bottom of a side cover 12 to be mounted in the opening 3a. A transformer 13, a rectifying semiconductor 14, Electrical components such as an electrolytic capacitor 15 and a resistance element 16 are arranged, and a predetermined power supply circuit is configured by the printed wiring 11b.

  The multi-connector 9 includes a contactor that contacts and electrically conducts the printed wiring 11b, but includes a push lock mechanism 9b that holds an end of the wiring board 11a inserted from the insertion port 9a. The attached power supply module 11 is prevented from falling off. The attached power supply module 11 can be taken out by releasing the holding of the end portion of the wiring board 11a by pushing the side cover 12 again.

  When the power supply module 11 is mounted and the plug 8 is connected to the ceiling outlet C, commercial AC power is supplied from the lead wire 10 of the plug 8 to the transformer 13 via the multiconnector 9 and the printed wiring 11b of the wiring board 11a. The The current converted to a low voltage by the transformer 13 becomes a direct current by the rectifying semiconductor 14, the electrolytic capacitor 15, and the resistance element 16, and is supplied from the lead wire 17 of the multiconnector 9 to the LED array substrate 6 of the LED light source unit 2. The plurality of LEDs 5 emit light simultaneously. In addition, the remote control receiving module and the dimming module can be accommodated in the remaining space inside the LED drive power supply unit 3.

  It is necessary to arrange | position the LED lighting fixture 1 of this invention comprised as mentioned above on the ceiling wall of a building, The example is demonstrated below. As shown in FIG. 5, the holding clip 50 shown in FIG. 3 has its both ends bent inward to form a clamping claw 50a. The holding clip 50 is screwed to the ceiling wall W1 and the reinforcing plate 2 with wood screws 51 inserted through the through holes 50b. Therefore, by pressing the flange 3c on the side of the top plate of the LED drive power supply unit 3 between the clamping claws 50a, tension is generated and held in the clamping claws 50a, and the plug 8 and the ceiling outlet C are simultaneously connected. It will be.

  When the ceiling outlet C is a rosette type or a ceiling type, the plug 8 needs to be dedicated. In this case, as shown in FIG. 6, a recessed portion 3d is formed at a position where the plug 8 is fixed, and an electric wire 60 connected to the multi-connector 9 is connected through a through hole 3e formed at the bottom of the recessed portion 3d. Pull out and connect a dedicated plug 9 to it. With this configuration, after the plug 8 is connected to the ceiling outlet C, the LED drive power supply unit 3 can be attached to the holding clip 50 while accommodating the electric wire 60 in the internal space. As shown, the plug 8 is accommodated in the recessed portion 3d.

  As illustrated in FIG. 8, the LED lighting apparatus 1 of the present invention configured as described above is arranged on the ceiling wall W <b> 1 of the room R with a so-called one-touch, and an illumination function can be obtained immediately. As shown in FIG. 9, by forming a through hole 3 f at an appropriate position on the outer wall of the LED drive power supply unit 3, ventilation inside the LED drive power supply unit 3 is promoted and temperature rise is further prevented. be able to.

  FIG. 10 exemplifies a multi-lamp type configuration, in which the LED drive power supply unit 3 is integrally disposed across the two LED light source units 2, and even in such a configuration, FIG. This can be easily handled by configuring the holding clip 50 so as to correspond to the increased width of the LED drive power supply unit 3. In addition, the effect equivalent to a multi-lamp type can be obtained even by arranging a plurality of single-lamp types arranged as shown in FIG. 1, and has flexibility to easily cope with indoor conditions.

1 .... LED lighting fixture 2 .... LED light source 3 .... LED drive power supply 4 .... Base substrate 5 .... LED
6 .... LED array board 7 .... Diffusion sleeve 8 .... Plug 9 .... Multi connector 10 ... Lead wire 11 ... Power supply module 11a ... Wiring board 12 ... Side cover 13 ... Transformer 14 ... Semiconductor for rectification 15 ... Electrolytic capacitor 16 ... Resistance element 50・ ・ ・ ・ ・ Holding clip 60 …… Power line

Claims (8)

  A long LED light source unit provided with an LED array substrate, and an LED drive power supply unit shorter than the LED light source unit on the LED light source unit, and a power supply module for lighting the LEDs on the LED array substrate An LED lighting apparatus characterized by being detachable from an LED drive power supply unit.   A power supply module comprising a plurality of long LED light source units provided with an LED array substrate, and an LED drive power source unit shorter than the LED light source unit on the LED light source unit, and lighting the LEDs on the LED array substrate The LED lighting apparatus is characterized in that it can be attached to and detached from the LED drive power supply unit.   The LED lighting apparatus according to claim 1 or 2, wherein the LED light source unit and the LED driving power source unit are integrally formed of light metal.   The LED lighting apparatus according to claim 1 or 2, wherein means for connecting to a commercial AC power supply is provided at a central portion of the top plate of the LED drive power supply unit.   The flange according to claim 1 or 2, wherein a flange is formed on a side portion of the top plate of the LED drive power supply unit, and the flange is attached to a holder fixed to a ceiling wall of a building. LED lighting fixtures.   The LED lighting device according to claim 1 or 2, wherein a ventilation hole is formed in the LED drive power supply unit so as to allow ventilation inside the LED drive power supply unit.   A multi-connector is provided inside the LED drive power supply unit, and an end of a substrate of the power supply module is connected to the connector, and a DC power source generated by the power supply module is connected to the LED light source unit from the inside of the LED drive power supply unit. The LED lighting apparatus according to claim 1, wherein the LED lighting apparatus is supplied to the LED array substrate.   The LED lighting apparatus according to claim 7, wherein the multi-connector has a push lock mechanism and holds an end portion of a substrate of the power supply module.

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