JP2008153152A - Lighting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting apparatus in which a power supply part is integrated and small size and thinness are realized. <P>SOLUTION: The lighting apparatus 10 includes a light source part 12 in which a plurality of light sources 11 are arranged in nearly straight line, an apparatus main body 20 which is constructed in a line form of a material having thermal conductivity and electric conductivity and houses the light source part, a power supply part 30 which has a power supply circuit 40a to light the light source and an electric insulating power supply box 31 to house the power supply circuit and is arranged in parallel to the power source part on the apparatus main body. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

   The present invention relates to a lighting apparatus using a light emitting diode or the like as a light source.

  In recent years, line-type lighting fixtures using light-emitting diodes as light sources have been developed (see, for example, Patent Document 1).

  Since this type of line-type lighting fixture can be irradiated linearly and continuously, it is installed on a fixture, a floor, a wall surface, and the like, and is often used as an embedded type fixture.

  On the other hand, since the light emitting diode is driven by a direct current, a separate power source is required, and the appliance is required to be small and thin. It is configured.

Moreover, as a lighting fixture having a built-in power supply unit, there is a round lighting fixture (see, for example, Patent Document 2).
JP 2005-1000079 A JP 2003-86006 A

  However, since the line-type lighting fixture shown in Patent Document 1 has a separate power supply unit, a space for installing the power supply unit is required, and installation work is complicated.

  Further, in a line-type lighting fixture, the fixture main body is made of aluminum, and the fixture main body itself is combined with a light-emitting diode or the like to dissipate heat from a light source, thereby achieving a small size and a thin shape.

  For this reason, when integrating a power supply part with respect to an instrument main body, it is necessary to ensure a large electric insulation distance between a power supply part and an aluminum instrument main body. For this reason, the problem that the whole instrument inevitably increases in size arises.

  Moreover, the lighting fixture shown by patent document 2 makes a round planar surface light source, and is not suitable as a fixture which performs a line-shaped illumination, such as a fixture, a floor, a wall surface, etc., and also an embedded type. There's a problem.

  For this reason, in this type of lighting fixture that uses light-emitting diodes or the like as light sources, it is important how to achieve a line-type lighting fixture that is compact and thin while integrating the power supply and achieving electrical insulation. It has become a challenge.

  The present invention intends to provide a lighting apparatus that can integrate a power supply unit and can be reduced in size and thickness.

  The invention of the lighting apparatus according to claim 1 includes a light source part formed by arranging a plurality of light sources in a substantially straight line; and is configured in a line shape with a material having thermal conductivity and electrical conductivity, and houses the light source part And a power supply circuit for lighting the light source and an electrically insulating power supply box for housing the power supply circuit, and a power supply section disposed in parallel with the light source section on the instrument main body. And

  According to the present invention, a light source unit formed by arranging a plurality of light sources in a substantially straight line, and a line formed of a material having thermal conductivity and electrical conductivity, and a tool body that houses the light source unit, The main body itself can also be used for the heat radiation action of the light source, and a line-shaped lighting fixture that is small and thin is configured.

  At the same time, it has a power supply circuit that turns on the light source and an electrically insulating power supply box that houses the power supply circuit, and the power supply unit arranged in parallel with the light source unit on the instrument body makes it small and thin while achieving electrical insulation. A line-shaped lighting fixture that achieves the above is realized.

  The light source is a small light source, and allows a semiconductor light emitting element such as a light emitting diode or a semiconductor laser.

  Furthermore, not only a semiconductor light emitting element but also an incandescent bulb such as a small bulb or a halogen bulb may be used.

  The light source unit prepares a plurality of light sources. For example, on a long light emitting element substrate, the light sources are arranged in a line or a plurality of lines substantially vertically or horizontally in a straight line or in a plurality of lines. You may make it comprise the linear light emission surface which made rectangular shapes, such as a rectangle and a square, in view.

  The instrument body may be made of aluminum (Al), copper (Cu), iron (Fe), etc. with good thermal conductivity and electrical conductivity, or may be made of synthetic resin such as high thermal conductivity resin. All materials for dissipating heat from the light source are acceptable.

 The power supply unit may be composed of a synthetic resin having electrical and thermal insulation properties, for example, PBT (polybutylene terephthalate), etc., and all materials for maintaining electrical insulation and an electrically conductive instrument body are allowed. Is done.

 For example, even if the power supply unit is arranged in parallel by means such as inserting and fitting a power supply box into an instrument body constituted by extrusion molding of aluminum, it is further arranged in parallel via a separate support member. In other words, all the means for integration to achieve a reduction in size and thickness are allowed while having electrical insulation with the instrument body having electrical conductivity.

 According to a second aspect of the present invention, there is provided a lighting device comprising: a light source portion in which a plurality of light emitting diodes are arranged substantially linearly; a fixture main body configured in a metal line shape and containing the light source portion; A power supply circuit that is lit, and has a synthetic resin power supply box that accommodates the power supply circuit, and a power supply unit disposed in parallel with the light source unit on the instrument body.

  According to a third aspect of the present invention, in the lighting fixture according to the first or second aspect, the power supply unit has a wiring board on which an electrical component is mounted, and a surge absorbing varistor is installed on the side of the wiring board body. It is characterized by that.

  According to a fourth aspect of the present invention, in the lighting fixture according to the first to third aspects, the fixture main body has a support member that contacts the power supply box, and the power supply line is locked by the power supply box and the support member to stop the tension. It is characterized by performing.

  The support member of the instrument main body may be, for example, a lid member for closing the open end portions of the instrument main body in a line shape, or may be a special support member for supporting the power supply box on the instrument main body. .

  The tension of the power line can be locked even if the power line is clamped by simply abutting the support member against the power box. You may make it pinch and latch.

  According to a fifth aspect of the present invention, in the lighting fixture according to the first to fourth aspects, the power supply unit supports the power supply box on the fixture main body and simultaneously holds the wiring board.

  For example, when the power supply box of the power supply unit is configured by combining two split cases, the wiring board may be sandwiched and held between the two cases. Further, when the box is configured by combining the case and the lid, the wiring board may be sandwiched between the lid and the case.

  For example, the means for simultaneously holding the power supply box may be the one described above by screwing the common screw into the instrument body while holding the wiring board using a screw in the case divided into two or the case and the lid. The wiring board may be sandwiched simultaneously with the support to the instrument body.

  The fixing means is not limited to a screw and may be a means for fixing by clamping with a clip or the like.

  According to the first aspect of the present invention, a light source part formed by arranging a plurality of light sources in a substantially straight line, and a tool body that is configured in a line shape with a material having thermal conductivity and electrical conductivity, and houses the light source part. This makes it possible for the fixture body itself to also share the heat radiation action of the light source, and to form a line-shaped lighting fixture that is small and thin, and at the same time, the power supply circuit that lights the light source and the electrical insulation that houses the power supply circuit A line-shaped lighting fixture that has a power supply box and is reduced in size and thickness while being electrically insulated can be provided by a power supply portion that is arranged in parallel with the light source portion on the fixture body.

  According to the second aspect of the present invention, a light source part formed by arranging a plurality of light emitting diodes in a substantially straight line; and a light emitting diode formed on a metal line and housing the light source part. A line-shaped lighting fixture that can be combined with the heat dissipation function of the light source is configured, and has a power supply circuit that lights a light emitting diode and a synthetic resin power supply box that accommodates the power supply circuit. A line-shaped luminaire that is compact and thin while providing electrical insulation can be provided by a power supply unit arranged in parallel with the light source unit on the main body.

  According to the invention of claim 3, the power supply unit has a wiring board on which electrical components are mounted, and a surge absorbing varistor is installed on the instrument body side of the wiring board, so that it is small and thin while achieving electrical insulation. Therefore, it is possible to provide a line-shaped luminaire that achieves safety and further safety.

  According to the invention of claim 4, the instrument main body has the support member that contacts the power supply box, and the power supply line is locked by the power supply box and the support member so as to perform the tension stop. Is no longer required, and the power box does not increase in size.

  According to the invention of claim 5, since the power supply unit supports the power supply box on the instrument body and at the same time sandwiches the wiring board, the number of metal fittings such as screws that require an electrical insulation distance is reduced. It becomes possible, and a power supply part can be stored in the instrument main body compactly.

  Hereinafter, an embodiment of a lighting fixture according to the present invention will be described.

  The lighting fixture of the present embodiment is configured as a line module using a plurality of high-output light emitting diodes, and is configured as a sink lamp in a general household, for example.

  Reference numeral 10 denotes a lighting fixture, which includes a plurality of light sources 11, a light source portion 12 in which the light sources are arranged in a substantially straight line, a fixture main body 20 configured in a line shape, and a unit integrated in parallel with the light source portion. The power supply unit 30 is configured.

  The light source is composed of a light-emitting diode 11 (hereinafter referred to as “LED”), and the LED 11 is prepared with 16 LEDs of the same color, in this embodiment, high-power white LEDs. It is composed of the same type of performance that mainly emits light in the axial direction.

  The light source unit 12 is configured by mounting each of the 16 LEDs 11 on a long light-emitting element substrate 12a having a long and narrow planar shape and arranged in a line at substantially equal intervals in a substantially straight line. The light emitting element substrate 12a is made of a heat-resistant and electrically insulating synthetic resin.

  The instrument main body 20 is a case member having a line shape for arranging and storing the light source unit 12 in a substantially straight line, and is made of aluminum having thermal conductivity and electrical conductivity.

The instrument body 20 is formed as an elongate case member having a substantially U-shaped cross section having openings 20a and 20a at both ends by extruding an aluminum material, and is formed with a planar substrate portion 20b and both sides of the substrate portion. It consists of the side walls 20c and 20c formed in the facing direction. (Figure 2)
Concave grooves 20d and 20d for fixing a support member 60, which will also be an end plate of the instrument main body, which will be described later, to the instrument main body 20 with screws, are formed in a portion located at a substantially intermediate height between the inner surfaces of both side walls 20c and 20c.

  Support grooves 20f and 20f for inserting and supporting the translucent cover member 22 are formed in portions positioned at the upper end portions of the inner surfaces of both side walls.

  Further, engagement grooves 20h, 20h for engaging with the mounting bracket 21 are formed in a portion located at an approximately middle height of the outer surfaces of the both side walls, and located above the middle portion for heat dissipation of the sectional waveform. Grooves 20i and 20i are formed.

  The concave groove 20d, the support groove 20f, the engagement groove 20h, and the heat radiation groove 20i are integrally formed at the time of extrusion molding of the aluminum material, and are formed as a linear groove continuous over the openings 20a and 20a at both ends. The

  The translucent cover member 22 is made of a long white plate-like milky white and translucent acrylic resin, and has a thickness that can be inserted and fitted into the support grooves 20f and 20f.

The length of the cover member 22 is configured to be shorter than the length of the instrument main body 20, and in order to install and integrate the power supply unit 30 (described later) in the instrument main body 20 in a state where the cover member 22 is inserted and fitted into the support grooves 20f and 20f. A space S is formed. (Figure 1 right side)
The mounting bracket 21 is formed by pressing a stainless steel plate material to have a substantially U-shaped section. The mounting hole 21a is formed in the bottom plate portion, and the locking projections 21b and 21b are integrally formed at the upper end portions of both side surfaces. To do. The locking projection is formed in a shape and size that engages and engages with the engagement grooves 20h and 20h of the instrument body 20 described above.

  The power supply unit 30 includes a power supply circuit that lights each LED 11 and a power supply box 31 that houses the power supply circuit. The power supply unit 30 is integrated in the instrument body 20 in parallel with the light source unit 12.

  The power supply box 31 is made of a nonflammable synthetic resin having electrical insulation and thermal insulation, in this embodiment, PBT (polybutylene terephthalate).

The power supply box 31 is composed of an upper case 32 and a lower case 33 which are divided into two parts. Each case is combined to form a box, and the wiring board 40 is sandwiched and held between the cases. To do. (Fig. 2 (a))
As shown in FIG. 3, the upper case 32 has a space portion 32a for storing electrical components in the central portion, jetty portions 32b and 32b formed integrally on both sides of the space portion, and continuous from the space portion to one end portion. And a power line lead-out portion 32c formed integrally.

  A pair of support holes 32e and 32f are formed integrally with the support boss 32d positioned on the diagonal line on each of the facing jetty portions 32b on the jetty portion 32b adjacent to the lead-out portion 32c.

  A vertical hole is formed in the support boss 32d. The vertical hole and one support hole 32e are screw holes for screwing and fixing a screw screw, and the other support hole 32f is fitted with a support pin 33f of the lower case 33 described later. It becomes a hole to do.

  32g is a positioning groove integrally formed adjacent to the other support hole 32f.

  As shown in FIG. 4, the lower case 33 has a space portion 33a for storing electrical components together with the space portion 32a of the upper case at the center portion, and jetty portions 33b and 33b integrally formed in a step shape on both sides of the space portion. Have

  A circular cutout 33d is formed at a substantially central portion of the end portion, and a support hole 33e and a support pin 33f, each of which is a through hole, are integrally formed so as to be positioned on a diagonal line on each of the opposing jetty portions 33b. .

  The upper surface of the upper support boss 32d is in contact with the upper hole of the upper boss 32d, and the circular cutout 33d can be screwed into the vertical hole of the support boss 32d through the screw screw 52 from the notch 33d.

The lower case support hole 33e formed of a through-hole is formed corresponding to the upper case support hole 32e, and can be screwed into the support hole 32e through the screw screw 50 from the support hole 33e. (Fig. 8)
The support pin 33f of the lower case can be inserted and fitted into the other support hole 32f of the upper case.

  33g is a protrusion integrally formed adjacent to the support pin 33f, and fits into the groove 32g of the upper case to position the upper and lower cases.

  As shown in FIG. 8, the jetty portion 33b ′ corresponding to the power line lead-out portion 32c of the upper case 32 forms a higher jetty, and a gap is formed between the upper and lower cases and the case end surface. a is formed.

  The gap a is for inserting and holding a power supply line to be described later, and has a gap dimension of about −0.1 to 0.2 mm with respect to the wire diameter of the power supply line.

  In this embodiment, the power source wire has a wire diameter of about 1.9 mm and a gap a of about 1.8 mm.

  Reference numeral 32h denotes an abutting portion formed by integrally projecting in the horizontal direction on one end surface of the upper case, and the end surface of the cover member 22 is fitted thereto.

  The wiring board 40 is formed of a rectangular printed wiring board, and electrical components 41 constituting the power supply circuit 40a are mounted on the front and back surfaces thereof.

  That is, as shown in FIG. 6, the power supply circuit 41a is configured by connecting a full-wave rectifier 41c formed of a diode bridge in parallel to input terminals 41a and 41a connected to a commercial power supply via a varistor 41b for absorbing surges. To do. 41d is a current fuse, and 41e and 41e are output terminals.

Of the electrical components of the power circuit configured as described above, the varistor 41b faces the back surface of the wiring board 40, that is, the upper surface of the planar substrate portion 20b of the device body when the power supply unit 30 is incorporated into the device body 20. The other components such as the rectifier 41c and the current fuse 42d are installed on the opposite surface side, that is, on the side where the board portion 20b of the instrument body does not exist. (Fig. 2 (a))
The rectangular wiring board 40 on which the electrical components are mounted as described above is formed having the support recesses 40d and 40d in which the corners located on the diagonal are cut out in a semicircular shape. (Fig. 5)
The wiring board 40 configured as described above is housed in the lower case 33 of the power supply box 31. That is, the wiring board is inserted so that the back surface side of the wiring board is placed on the jetty portion 33b of the lower case. As a result, as shown in FIG. 5, the cut-out support recesses 40d, 40d are aligned with the support holes 33e and the support pins 33f made of the through-holes, and the varistor 41b mounted on the back surface of the wiring board is It is installed facing the space 33a formed on the bottom of the case. (Fig. 2 (a))
At the same time, the power supply lines 43 a and 43 b connected to the input terminals 41 a and 41 a of the wiring board 40 are led out from the upper surface of the wiring board 40.

  The upper case 32 is placed on the lower case 33 with the wiring board 40 installed as described above. That is, the lower case is put on the upper case while positioning by fitting the protrusion 33g of the lower case into the groove 32g of the upper case.

In this state, since the jetty portion 32b of the upper case 32 is inserted into the lower case 33, the side surface of the power supply box becomes a double wall made of synthetic resin. (Fig. 2 (a), Fig. 8)
As described above, the upper case jetty 32b faces the surface side of the wiring board 40, and the wiring board is sandwiched between the lower case jetty 33b. (Fig. 2 (a))
In addition, the circular cutout 33d of the lower case 33 is in contact with the upper surface of the support boss 32d of the upper case 32 and matches the vertical hole.

  Further, the support hole 33e of the lower case is aligned with the support hole 32e of the upper case, and the support pin 33f of the lower case is inserted into the other support hole 32f of the upper case to be fitted.

  At this time, the two power supply lines 43a and 43b led out from the upper surface of the wiring board 40 are led out to the outside from the space portion 32a on the bottom surface of the upper case through the lead-out portion 32c.

  In this state, the lower case support hole 33e is screwed through the screw screw 50 into the support hole 32e. (FIG. 8) As a result, the upper case and the lower case are integrated, and at the same time, the wiring board 40 is sandwiched between the upper and lower jetty portions 32b and 33b, only one end side is the screw 50, and the other end portion is the support pin 33f. The power supply unit 30 that is temporarily fixed by simple fitting is configured.

  As shown in FIG. 8, 60 is a support member that abuts the end face of the power supply box 31 and holds the lead wires, which are the two power supply lines 43a and 43b, between the power supply box and the support member 60 and locks them. It is.

  As shown in FIG. 7, the support member 60 is made of a nonflammable, synthetic resin having electrical insulation and thermal insulation, as in the case of the power supply box 31. In this embodiment, PBT (polybutylene terephthalate) has a predetermined thickness. It is configured in a rectangular end plate shape with

  The end plate-like support member 60 is formed with a mounting hole 60a penetrating from the upper surface to the lower surface, and a pair of support holes 60b, 60b penetrating from both side surfaces.

Further, an insertion hole 60c penetrating in an L shape from one side surface to the lower surface is formed. The insertion hole is formed between the end face of the power supply box 31 and the case end face of the power supply box when the support member 60 is brought into contact with the end face. Formed so as to communicate with the gap a. (Fig. 8)
Next, a procedure for integrally arranging the power supply unit 30 in parallel with the light source unit 12 in the instrument body 20 configured as described above will be described.

  First, the power supply unit 30 in which the upper case 32 and the lower case 33 are integrated and the wiring board 40 is temporarily fixed with the screws 50 is incorporated into the space S of the instrument body 20.

  That is, the power supply box 31 is positioned in the opening 20a on one end side of the instrument body and is inserted by sliding toward the space S so that the lower surface of the lower case 33 faces the upper surface of the planar substrate portion 20b of the instrument body. Install in.

  Next, as shown in FIG. 1 (b), a screw screw 52 is inserted through the attachment hole from the lower surface of the base plate portion 20b of the instrument body, and the support boss 32d of the upper case is inserted through the notch 33d of the lower case 33. Screw it into the vertical hole and fix it. At this time, the end face of the power supply box 30 and the opening 20a end face of the instrument body 20 are configured to be flush with each other.

  As described above, the power supply box 31 is supported by the instrument main body 20 and at the same time, the wiring board 40 temporarily fixed at one end side with the screw screw 50 is connected to the upper and lower cases 32 and 33 of the power supply box 31 by the jetty portions 32b and 33b. It is pinched and fixed and is supported securely.

  Further, of the electrical components in the power supply box 31, the varistor 41b is incorporated so as to face the upper surface of the board portion 20b of the instrument body.

  Next, the support member 60 is supported in contact with the end surface of the opening 20a of the instrument body.

  That is, a pair of support holes 60b and 60b formed in the support member 60 are positioned to face the grooves 20d and 20d of the instrument body, and two screws are inserted into the support holes and screwed into the concave grooves 20d and 20d. Fix it.

  At this time, as shown in FIG. 8, the two power wires 43a and 43b led to the outside through the lead-out portion 32c of the upper case are bent in the L-shape so that the lead-out portions are bent to the case end surface of the power box 31. It is located in the clearance gap a formed between the side surfaces of the support member 60.

  As a result, the power supply lines 43a and 43b are sandwiched and locked between the side surface of the upper ridge portion 33b 'of the upper case 32 and the side surface of the support member 60, and tension is stopped as a lead wire.

  The power supply lines 43a and 43b are fixed by screwing and fixing the support member 60 into the grooves 20d and 20d of the instrument body 20 with two screws, so that the tightening force is applied to the power supply line and is more strongly sandwiched. .

  It should be noted that the size of the gap a is set smaller than the wire diameter of the power supply line, so that the gap a is more firmly sandwiched and locked.

  The two power lines 43a and 43b are further led out from the lower surface of the support member 60 through the L-shaped insertion holes 60c of the support member.

  As a result, the power supply lines 43a and 43b are locked and led out in a meandering manner, so that the tension is more reliably stopped.

  Next, the light source unit 12 including the long light emitting element substrate 12a on which 16 LEDs are mounted is incorporated into the instrument body 20.

  That is, the bottom surface of the light emitting element substrate 12 a is placed on the upper surface of the substrate portion 20 b of the instrument body 20 and fixed with a plurality of screws 51. (FIG. 1) Thereby, the light emitting element board | substrate 12a is closely_contact | adhered and fixed to the instrument main body, and the heat which generate | occur | produces from each LED11 is directly transmitted to an instrument main body, and is thermally radiated outside.

Next, the input terminal of the LED 11 provided on the light emitting element substrate 12a and the output terminals 41e and 41e of the wiring substrate 40 are connected by the lead wire 43c. (Fig. 1 (b))
Note that one end of the lead wire 43c and the output terminals 41e and 41e of the wiring board are mounted in advance.

  Further, the translucent cover member 22 is positioned at the opening 20a on the other end side (left side of FIG. 1) of the instrument main body 20, and is inserted into and supported by the support grooves 20f and 20f.

  Thereby, the power supply part 30 is integrated and arrange | positioned in parallel with the right end part in FIG. 1 in the present Example in parallel with the light source part 12 in the instrument main body 20. FIG.

  As described above, in the state where the power supply unit 30 is integrated with the instrument body 20, electrical insulation between the power supply circuit of the power supply unit and the instrument body 20 made of conductive aluminum is ensured as follows. The

  In other words, the wiring board 40 on which the power supply circuit 41a is mounted has a configuration in which the periphery is covered with the synthetic resin power supply box 31, and an electrically insulating synthetic resin is interposed between the aluminum instrument body 20 and a sufficient insulation distance is provided. Is secured.

  Further, since the screw screws 50 for fixing the upper and lower cases 32 and 33 of the power supply box 31 are screwed into the support holes 32e of the upper case through the support holes 33e of the lower case, all the surroundings of the screws are synthesized. It is covered with resin and does not directly contact the wiring board 40, and a sufficient insulation distance is secured.

  Further, the screw case 50 for fixing the upper and lower cases 32 and 33 of the power supply box 31 is constituted by only one, and the other support parts located on the diagonal line are the support pins 33f of the lower case and the upper case. Since the other support hole 32f is inserted and fitted, a screw made of a conductive metal can be omitted, and the electrical insulation performance is further enhanced.

  Further, the screw screw 52 for fixing the power supply unit 30 to the instrument body 20 is a method of screwing and fixing from the lower surface of the substrate unit 20b to the vertical hole of the support boss 32d of the upper case through the notch 33d of the lower case. The periphery of the screw is all covered with a synthetic resin and does not directly contact the wiring board 40, so that a sufficient insulation distance is secured.

  In addition, since the power supply box 31 is supported on the instrument main body 20 with a single screw, the temporarily fixed wiring board 40 is sandwiched between the upper and lower cases 32 and 33 of the power supply box so that the main fixation is performed. The number of screws made of conductive metal can be reduced, and the electrical insulation performance is further improved.

  As described above, the light source is composed of the LED 11, and the power supply unit 30 is integrated with the fixture body 20, and is a thin line-shaped lighting fixture 10 that is driven by AC100V having a length of about 300 mm, a width of about 25 mm, and a thickness of about 15 mm. Is configured.

The lighting fixture 10 having the above configuration is used alone or continuously on the installation surface. For example, when used as a sink lamp in a general household, the mounting bracket 21 is fixed by screwing a wood screw 53 into the installation surface from the mounting hole 21a. (Fig. 1 (b), Fig. 2 (b))
The instrument body 20 is inserted into the fixed U-shaped mounting bracket 21, and the engaging grooves 20 h and 20 h on the side surface of the instrument body are fitted to the locking projections 21 b and 21 b on both sides of the mounting bracket 21, so that the mounting and dismounting can be performed. Support.

  Furthermore, the wood screw 54 is screwed and fixed to the installation surface from the mounting hole 60a of the support member 60 supported by the opening 20a of the instrument body. Further, the power supply lines 43a and 43b are connected to a commercial power supply to complete installation. (Fig. 1 (b))

  When the LED is turned on, each LED has a substantially linear light emitting surface, and the light beam is radiated downward in a straight line to perform desired illumination along the longitudinal direction of the rectangular sink.

  Further, since the fixture body 20 is made of aluminum and exposed to the outside, the heat generated from each LED is conducted from the light emitting element substrate 12a to the fixture body 20 and effectively radiated to the outside, and the temperature of each LED rises. Is suppressed, and a decrease in luminous flux can be prevented.

  When a single instrument is sufficient, a support member 60 is attached to the other end of the instrument body 20 and the left end in FIG. 1 to close the end plate and the other opening 20a.

  When the irradiation surface is long and wide, the length of the instrument main body 20 is changed, and further, for example, three light emitting element substrates 12a are continuously arranged in a straight line on the instrument main body having a length of about 1 m. Install and configure lighting fixtures of the required length.

  As described above, according to the present embodiment, the LED main body itself is radiated by the light source portion formed by arranging the plurality of LEDs 11 in a substantially straight line, and the fixture main body that is made of aluminum and accommodates the light source portion. A line-shaped lighting fixture that can be used in combination and is reduced in size and thickness is configured.

  At the same time, a power supply circuit that has a power supply circuit for lighting LEDs and a synthetic resin power supply box 31 that accommodates the power supply circuit, and that is integrated and arranged in parallel with the light source unit 12 in the instrument main body, The mounted wiring board 40 has a configuration in which the power supply box 31 made of synthetic resin covers the periphery, and an electrically insulating synthetic resin is interposed between the aluminum instrument body 20 and a sufficient electric insulation distance can be secured. it can.

  Thereby, it is not necessary to ensure a wide insulation distance, and the power supply unit 30 can be configured compactly.

  As a result, it is possible to provide a line-shaped lighting fixture that is small and thin while ensuring electrical insulation, and does not cause installation space problems or design constraints, and is advantageous in terms of cost. Can be provided.

  In particular, when the power supply box 31 is configured by combining the upper and lower cases 32, 33, the power supply box 31 is not simply joined by attachment, but the jetty portions 32 b, 32 b of the upper case 32 are inserted into the lower case 33. Therefore, the side surface of the power supply box 31 becomes a double-structured wall made of synthetic resin, and electrical insulation can be further ensured.

  Further, the screw screw 50 for fixing the upper and lower cases 32 and 33 of the power supply box 31 and the screw screw 52 for fixing the power supply unit 30 to the instrument body 20 are all covered with a synthetic resin and directly contact the wiring board. Therefore, a sufficient insulation distance can be secured and electrical insulation can be ensured.

  Moreover, these screw screws 50 and 52 are comprised only by one, the screw which consists of an electroconductive metal can be abbreviate | omitted, and electrical insulation performance can be improved more.

  The power supply unit 30 is incorporated so that the varistor 41b of the electrical components in the power supply box 31 faces the upper surface of the substrate unit 20b of the instrument body 20. For this reason, even when the varistor is damaged due to an abnormal situation, the substrate portion 20b of the instrument main body, which is a strong metal, is present below, preventing the instrument itself from being damaged, and providing a lighting apparatus that is safe. .

  In particular, the power supply unit is compact as described above, and is effective in a power supply unit that incorporates electrical components in a narrow space, and a safe and compact power supply unit can be provided.

  Incidentally, when the varistor 41b is attached to the upper surface of the wiring board 40, only the upper case 32 of the synthetic resin is used, and there is a risk of instrument damage.

  The two power supply lines 43a and 43b of the power supply unit 30 are positioned in a gap a formed between the case end surface of the power supply box 31 and the side surface of the support member 60 by bending the lead-out portion into an L shape. It is pinched and locked between 60 side surfaces.

  As a result, the tension stop as a lead wire is performed with two power supply parts, so it is not necessary to make a separate tension stop or separate parts such as an insulation lock, and the power box is compact without an increase in size. Therefore, it is possible to provide a line-shaped lighting fixture that is further reduced in size and thickness. At the same time, the number of parts is reduced, which is advantageous in terms of cost.

  Further, since the two power lines 43a and 43b are sandwiched and locked by the support member 60 that also serves as the end plate of the instrument body 20, there is no need to provide a separate member, and the structure is further simplified. The

  Since the power supply unit 30 supports the power supply box 31 on the instrument body 20 with a single screw screw 52, the wiring board 40 is sandwiched between the upper and lower cases 32 and 33 of the power supply box 31, so that the structure is This simplifies and facilitates the assembly work, reduces the number of screws that require an electrical insulation distance, eliminates the need for a screw-fastening space, and allows a more compact configuration.

  Since the power supply unit 30 is integrated and disposed in parallel to the light emitting element substrate 12 on which the LEDs 11 are mounted in the horizontal direction, not in the vertical direction, it is possible to make the LEDs less susceptible to thermal influence from the power supply unit.

  As described above, in the present embodiment, the power supply box 31 is configured such that the wiring board 40 is sandwiched between the upper and lower cases 32 and 33 by the screw screws 50 and temporarily fixed, but an electrically insulating silicon resin or the like is used. You may make it temporarily fix | bond by adhere | attaching with an adhesive agent.

  Alternatively, the temporary fixing may be omitted, and the power supply box 31 may be supported on the instrument main body 20 by one screw screw 52, and the wiring board 40 may be sandwiched between the upper and lower cases 32 and 33 at the same time.

  The power supply line tension stopper may be provided with locking members protruding in a staggered manner so that the power supply line is sandwiched and locked in a meandering state.

  Each LED 11 is configured with a white LED, but may be configured with an LED that emits light in red (R), green (G), blue (B), or the like, depending on the application of the lighting fixture. Alternatively, they may be mixed to emit light such as a light bulb color, a daylight white color, and a daylight color.

  The translucent cover member 22 is made of milky white translucent acrylic resin. However, the translucent cover member 22 is made of colorless and transparent polycarbonate or colored, and the material is not limited to the synthetic resin, and the translucent You may comprise with the tempered glass which has.

  Although the lighting fixture of the present embodiment is configured as a source lamp, it may be configured as various lighting fixtures for other homes, facilities, and business use.

  Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various design changes can be made without departing from the scope of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which abbreviate | omits and shows the lighting fixture which concerns on one Embodiment of this invention, (a) is a front view which removes the upper case of a cover member and a power supply part, (b) is a cover member and a power supply. Sectional drawing in alignment with the AA of (a) which attached the upper case of the part. Similarly, it is a figure showing a section of the luminaire, (a) is an enlarged cross-sectional view taken along line BB in FIG. 1 (a), (b) is enlarged along line CC in FIG. 1 (a). Sectional drawing. Similarly, the upper case in the power supply part of a lighting fixture is shown enlarged, (a) is a front view, (b) is a right side view, (c) is a sectional view along the AA line of (a), (d). (A) is sectional drawing which follows the BB line, (e) is sectional drawing which follows the CC line of (a), (f) is center sectional drawing. Similarly, the lower case in the power supply part of a lighting fixture is shown enlarged, (a) is a front view, (b) is a right side view, (c) is a left side view, and (d) is an AA line in (a). (E) is a cross-sectional view taken along line BB in (a), (f) is a cross-sectional view taken along line CC in (a), (g) is a central cross-sectional view, (h) Is a central sectional view. The front view which shows the state which expanded and showed the lower case in the power supply part of a lighting fixture similarly, and installed the wiring board inside. The power supply circuit diagram in the power supply part of a lighting fixture similarly. Similarly, the support member of a lighting fixture is shown enlarged, (a) is a front view, (b) is a right side view, (c) is a left side view, and (d) is a cross section along line AA in (a). The figure, (e) is sectional drawing which follows the BB line of (a), (f) is center sectional drawing. The expanded sectional view which follows the DD line | wire of Fig.1 (a) which similarly shows the power supply part of a lighting fixture.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Lighting fixture 11 Light source 12 Light source part 20 Appliance main body 30 Power supply part 31 Power supply box 40 Wiring board 40a Power supply circuit 41b Varistor 60 Support member

Claims (5)

A light source section in which a plurality of light sources are arranged substantially linearly;
An instrument main body configured in a line shape with a material having thermal conductivity and electrical conductivity and containing the light source part;
A power supply unit that has a power supply circuit for lighting the light source and an electrically insulating power supply box that houses the power supply circuit, and is disposed in parallel with the light source unit on the instrument body;
The lighting fixture characterized by comprising. A light source section in which a plurality of light emitting diodes are arranged substantially linearly;
An instrument main body configured in a metal line shape and containing the light source unit;
A power supply circuit that lights a light emitting diode and a power supply box made of synthetic resin that houses the power supply circuit, and a power supply section disposed in parallel to the light source section on the instrument body;
The lighting fixture characterized by comprising. The lighting apparatus according to claim 1, wherein the power supply unit includes a wiring board on which electrical components are mounted, and a surge absorbing varistor is installed on the apparatus body side of the wiring board. 4. The lighting apparatus according to claim 1, wherein the apparatus main body has a support member that comes into contact with the power supply box, and the power supply line is locked by the power supply box and the support member to stop the tension. 5. The lighting apparatus according to claim 1, wherein the power supply unit supports the power supply box on the apparatus main body and sandwiches the wiring board at the same time.

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