JP7243393B2 - lighting equipment - Google Patents

Description

Embodiments of the present invention relate to, for example, ceiling-mounted lighting devices.

2. Description of the Related Art A long base light having a plurality of LED elements arranged in a line, for example, is known as a ceiling-mounted lighting device. A base light of this kind generally has a chassis that is fastened to the ceiling and a lighting body that is attached to the chassis. The chassis includes a power supply and a terminal block. The lamp has a long substrate on which a plurality of LED elements are arranged in a straight line.

When attaching this type of base light to the ceiling, first, the power supply cable pulled out from the ceiling is passed through the hole in the chassis, and the chassis is fastened and fixed to the ceiling with screws. Then, the power supply cable pulled out from the hole of the chassis is connected to the lamp body, and then the lamp body is attached to the chassis. A screw or the like is used to attach the lamp body to the chassis.

On the other hand, for example, a base light of a type in which the lamp is directly attached to the ceiling via two mounting brackets spaced apart in the longitudinal direction has also been devised. The mounting bracket has, for example, a screw hole for fastening and fixing to the ceiling, and a holding portion for holding the lamp. The holding portion is formed of, for example, a leaf spring formed by bending a metal plate into a U-shape, and the tip of the leaf spring is provided with an engaging claw. The mounting bracket is fastened and fixed to the ceiling with the opening side of the leaf spring facing downward.

When mounting this type of base light on the ceiling, first, the two mounting brackets are spaced apart from each other by a predetermined distance and fastened and fixed to a predetermined position on the ceiling with screws. Then, the power supply cable pulled out from the ceiling is connected to the lamp, and then the lamp is pushed into the leaf springs of the two mounting brackets. As a result, the leaf springs of the two mounting brackets are elastically deformed and expanded, and the engaging claws at the tips of the leaf springs are engaged with the grooves on the outer surface of the housing of the lamp. , and the fixture is attached to the ceiling.

JP 2016-35935 A

However, when the lamp is directly attached to the ceiling as in the conventional base light described above, it is difficult to secure a space between the ceiling and the lamp for the connector that connects the power supply cable led out from the ceiling to the lamp. Therefore, in order to directly attach the lamp to the ceiling, for example, it is necessary to push the connector into the back side of the ceiling.

In this way, when the connector is arranged in the ceiling space, it is necessary to attach a connector accommodating portion surrounding and accommodating the connector to the ceiling space. For this reason, it takes time and effort to attach the connector accommodating portion, the number of parts increases, and the construction cost increases.

Therefore, there is a demand for the development of an inexpensive lighting device in which a lamp can be directly attached to a mounting surface.

A lighting device according to an embodiment includes : a light source module; a power supply connected to the light source module and supplying predetermined power to the light source module ; a terminal block of the power supply; A housing having a bottom wall and in which the power supply device is arranged ; a length that connects the terminal block and the power supply device and allows the terminal block to be arranged outside the bottom wall via the insertion part; A connection cable having flexibility ; and a mounting bracket having a fixing portion for fixing to a mounting surface and a holding portion for holding a housing . In this lighting device, the terminal block is pulled out from the insertion portion to the outside of the bottom wall, the tip of the power supply cable led out from the hole in the mounting surface is connected to the terminal block, the fixing portion is fixed to the mounting portion, and In a state in which the terminal block to which the power supply cable is connected is retracted into the housing through the insertion portion and accommodated, the housing is held by the holding portion of the mounting bracket so that the bottom wall faces the mounting surface.

According to the lighting device according to the embodiment, the lamp can be directly attached to the mounting surface with an inexpensive configuration.

FIG. 1 is a perspective view showing a base light according to an embodiment. FIG. FIG. 2 is a perspective view showing a state in which the translucent cover is removed from the lighting fixture of the base light in FIG. FIG. 3 is a cross-sectional view of the lighting fixture of the base light in FIG. 1 cut along line F3-F3. 4 is a perspective view showing a mounting bracket for mounting the lighting fixture of the base light of FIG. 1 to a mounting surface. FIG. FIG. 5 is an enlarged plan view showing an engagement hole of a housing of the lamp, into which the holding portion of the mounting bracket of FIG. 4 is inserted and the engagement portion is hooked. 6 is a schematic diagram showing a state in which a power supply cable is connected to a terminal block outside the housing of the lamp of the base light of FIG. 1. FIG. FIG. 7 is a schematic diagram showing a state in which the terminal block to which the power supply cable is connected is accommodated in the recess of the housing from the state shown in FIG. FIG. 8 is a schematic diagram showing a connecting portion connecting another lamp to the lamp of the base light in FIG. FIG. 9 is a plan view showing an example of a type of engagement hole in which the lamp is attached by sliding it in the lateral direction. FIG. 10 is a schematic diagram showing a state in which the connector of the power supply cable is connected to the terminal block pulled out to the outside of the lamp. 11 is a schematic diagram showing a state in which the terminal block to which the connector of the power supply cable is connected is housed in the recess of the housing from the state of FIG. 10. FIG.

Hereinafter, embodiments will be described in detail with reference to the drawings.
The base light 100 (illumination device) according to the embodiment includes a light source module 14, a power supply device 4 connected to the light source module 14, a terminal block 6 of the power supply device 4, a housing 2 in which the power supply device 4 is arranged, have The housing 2 has a bottom wall 2a facing the ceiling from which a power supply cable 31 connected to the terminal block 6 is led out. The bottom wall 2a is provided with a lead-in hole 5 (insertion portion) through which the terminal block 6 can be inserted. The terminal block 6 is connected to the power supply device 4 via a flexible connection cable 8 . The connection cable 8 has a length that allows the terminal block 6 to be arranged outside the housing 2 through the lead-in hole 5 . The base light 100 has a mounting bracket 20 for attaching the housing 2 to the ceiling in a state in which the terminal block 6 to which the power supply cable 31 is connected is pulled into the housing 2 through the lead-in hole 5 and accommodated therein.

FIG. 1 is a perspective view showing a base light 100 according to an embodiment. 2 is a perspective view showing a state in which the translucent cover 12 is removed from the lighting fixture 10 of the base light 100 of FIG. 3 is a cross-sectional view of the lamp fixture 10 of the base light 100 of FIG. 1 cut along a plane (F3-F3) orthogonal to the longitudinal direction. 4 is a perspective view showing a mounting bracket 20 for mounting the lamp 10 of the base light 100 of FIG. 1 to the mounting surface 1 such as a ceiling or a wall. Further, FIG. 5 shows a partially enlarged engagement hole 7 of the lamp 10 that engages with the mounting bracket 20 by sliding the lamp 10 along the ceiling in the direction of arrow T with the mounting bracket 20 inserted. 1 is a plan view shown in FIG. The lamp 10 is attached to the mounting surface 1 using at least one mounting bracket 20 . In the base light 100 of this embodiment described below, the lamp 10 is attached to the ceiling via two mounting brackets 20 .

As shown in FIG. 2, the lamp 10 has a long, substantially rectangular box-shaped housing 2 with an open bottom side. The housing 2 has, for example, a shape obtained by processing a single substantially rectangular metal plate and bending it into a U-shaped cross section. More specifically, the housing 2 integrally has a bottom wall 2a, two side walls 2b and two end walls 2c. The bottom wall 2a is formed in an elongated rectangular plate shape. The bottom wall 2a functions as a facing wall facing the ceiling. The two side walls 2b are arranged perpendicularly to the bottom wall 2a so as to be continuous with both ends along the longitudinal direction of the bottom wall 2a. Each side wall 2b is formed in a long rectangular plate shape. The two end walls 2c are arranged perpendicularly to the bottom wall 2a so as to be continuous with both end sides along the short direction of the bottom wall 2a. Each end wall 2c is formed in a rectangular plate shape. The two side walls 2b and the two end walls 2c extend vertically on the same side of the bottom wall 2a to form a rectangular frame-shaped peripheral wall. In other words, the housing 2 has an elongated rectangular opening facing the bottom wall 2a, and an elongated rectangular recess 3 is formed in the housing 2 .

The bottom wall 2a of the housing 2 is provided with a circular lead-in hole 5 (insertion portion) for drawing a power supply cable 31 (FIGS. 6 and 7) wired from the ceiling into the recess 3. there is The lead-in hole 5 is provided through the bottom wall 2a at the center in the longitudinal direction of the bottom wall 2a. The size of the lead-in hole 5 is formed such that a terminal block 6 connected to a power supply device 4, which will be described later, can be inserted therethrough. The shape of the lead-in hole 5 can be arbitrarily designed as long as the shape allows the terminal block 6 to be inserted thereinto.

In addition, two engagement holes 7 are provided in the bottom wall 2a of the housing 2 so as to penetrate the bottom wall 2a. The two engaging holes 7 are provided near the longitudinally spaced ends of the bottom wall 2a with the lead-in hole 5 interposed therebetween. The two engaging holes 7 are formed in the same shape and are provided in the same direction with respect to the bottom wall 2a. Although it is desirable that the number of engaging holes 7 is two, at least one is sufficient. The number of engagement holes 7 may be determined according to the length of the lamp 10, and the number of engagement holes 7 may be increased as the lamp 10 becomes longer.

As shown in an enlarged view in FIG. 5, two engaging holes 7 (only one is shown in FIG. 5) provided in the bottom wall 2a of the housing 2 are inserted into the holding portions 24 of the mounting brackets 20, which will be described later. formed into possible shapes. That is, the engaging hole 7 has a shape in which a trapezoidal hole portion 7a through which the holding portion 24 can be inserted and a rectangular engaging hole portion 7b are connected in the sliding direction of the lamp 10 (direction of arrow T). More specifically, the trapezoidal hole portion 7a is arranged forward in the arrow T direction, and the engagement hole portion 7b is arranged rearward in the arrow T direction. The trapezoidal hole portion 7 a is formed in accordance with the shape of the holding portion 24 of the mounting bracket 20 . The trapezoidal hole 7a is formed so that, of the two parallel sides of the trapezoid, the relatively short short side is arranged rearward in the arrow T direction and the relatively long long side is arranged forward in the arrow T direction. there is That is, the engaging hole portion 7b is provided continuously with the short side of the trapezoidal hole portion 7a.

A power supply device 4 is accommodated and arranged in the recess 3 of the housing 2 . The power supply device 4 is arranged between two engagement holes 7 provided in the bottom wall 2a, the engagement hole 7 provided ahead in the direction of the arrow T, and the lead-in hole 5 in the center. That is, the power supply device 4 is arranged at a position that is biased forward in the arrow T direction within the recess 3 . At this position, the power supply device 4 is fixed to the inner surface of the bottom wall 2a of the housing 2 with screws or the like (not shown).

A terminal block 6 is connected to the rear end side of the power supply device 4 in the direction of arrow T (the end portion near the lead-in hole 5) via a flexible connection cable 8 having a predetermined length. The connection cable 8 has a length that allows at least the terminal block 6 to be pulled out of the housing 2 . In FIG. 2, the terminal block 6 is pulled out of the housing 2 through the lead-in hole 5, but the terminal block 6 is accommodated in the recess 3 of the housing 2 with the lamp 10 attached to the ceiling. placed.

6 and 7 are schematic diagrams showing a state in which the power supply cable 31 is connected to the terminal block 6 connected to the power supply device 4. FIG. FIG. 6 shows a state in which the terminal block 6 is pulled out of the housing 2 and the power supply cable 31 is connected, and FIG. Indicates the arranged state. In other words, FIG. 7 shows a state in which the lamp 10 is attached to the ceiling.

The power supply device 4 converts power supplied from a commercial power supply (not shown) via the power supply cable 31 , the terminal block 6 and the connection cable 8 into power corresponding to the lamp 10 . The power supply device 4 is connected to wiring (not shown) of the substrate 13 of the light source module 14 to be described later via an electric wire (not shown). The power supply device 4 supplies predetermined power to the light source module 14 to cause the plurality of LED elements 11 to emit light.

Inside the housing 2, there is also provided an outlet 9 for connecting another lamp 10' (second lamp), not shown, which does not have the power supply device 4. As shown in FIG. The outlet 9 is provided at the rear end of the housing 2 in the sliding direction (direction of arrow T in the figure) when the lamp 10 is attached to the ceiling. The outlet 9 is connected to the power supply device 4 via an electric wire (not shown). When another lamp 10' is connected to the rear end of the lamp 10 and attached, the power supply device 4 of the lamp 10' is connected to the light source module 14 of the lamp 10' through a plug 40 (FIG. 8) and an outlet 9, which will be described later. Power can be supplied from the device 4 to the lamp 10'.

As shown in FIG. 3, a long rectangular plate-like substrate 13 on which a plurality of LED elements 11 are mounted in a line is attached near an opening separated from the bottom wall 2a of the housing 2. . The substrate 13 extends in a direction orthogonal to the plane of FIG. 3 . The LED element 11 is formed by sealing an LED chip connected to a wiring pattern (not shown) provided on the mounting surface of the substrate 13 on the mounting surface of the substrate 13 with resin. A plurality of LED elements 11 are arranged in a row at regular intervals along the longitudinal center line of the substrate 13 on the mounting surface of the substrate 13 .

Holding grooves 15 for receiving the longitudinal edges of the substrate 13 are formed near the edges on the opening side of the two long side walls 2 b of the housing 2 . The two holding grooves 15 are provided parallel to each other over substantially the entire length of the housing 2 . The holding groove 15 is arranged at a position where the substrate 13 can be held in a posture parallel to the bottom wall 2 a of the housing 2 . The substrate 13 is attached to the housing 2 with the plurality of LED elements 11 facing the floor opposite to the ceiling.

In addition, as shown in FIGS. 1 and 3, an elongated transparent translucent cover 12 is provided in the opening facing the substrate 13 of the housing 2 . The translucent cover 12 is formed, for example, by extrusion molding of a resin material. The light-transmitting cover 12 has a cross-sectional shape in which the central portion along the extrusion direction (that is, the longitudinal direction) protrudes into a dome shape. Both end edges along the longitudinal direction of the translucent cover 12 are closed so as to be continuous with the end walls 2c of the housing 2 by end plates made of the same material. The translucent cover 12 cannot be attached to and detached from the housing 2 and is integrally fixed to the housing 2 . The light-transmitting cover 12 transmits and diffuses the light emitted from the plurality of LED elements 11 arranged on the substrate 13, and prevents the illumination light emitted from the lighting device 10 from being uneven.

As shown in FIG. 4, the mounting bracket 20 of the base light 100 is formed, for example, by shaping and bending a substantially rectangular metal plate. The mounting bracket 20 integrally has a fixing portion 22 fixed to the ceiling and a holding portion 24 holding the lamp 10 . The holding portion 24 also has an engaging portion 26 that engages with the edge of the engaging hole 7 provided in the bottom wall 2 a of the housing 2 of the lamp 10 .

A fixing portion 22 of the mounting bracket 20 is formed in a substantially rectangular plate shape and has two screw holes 21 for inserting screws (not shown) for fixing to the ceiling. The two screw holes 21 are arranged side by side in the longitudinal direction of the fixing portion 22 while being separated from each other. The fixed part 22 is arranged parallel to the ceiling with its longitudinal direction parallel to the longitudinal direction of the base light 100, and is attached in contact with the ceiling. Sliding contact plate pieces 23 (sliding contact portions) interposed between the bottom wall 2a of the housing 2 of the lamp 10 and the ceiling are integrally protruded from both ends of the fixed portion 22 along the longitudinal direction. ing.

Approximately rectangular plate-like side plates 25 are provided integrally and continuously at both ends of the fixed portion 22 along the longitudinal direction. The two side plates 25 extend in a direction orthogonal to the fixed portion 22 on the same side of the fixed portion 22 (the side away from the ceiling). The two sliding contact plate pieces 23 of the fixing portion 22 are formed by partially cutting and raising the two side plates 25 . For this reason, each side plate 25 is formed with a notch having substantially the same shape as the sliding contact plate piece 23 .

Rectangular plate-like engaging portions 26 are provided integrally and continuously at the longitudinal edge of each side plate 25 away from the fixing portion 22 . The two engaging portions 26 extend in directions orthogonal to the corresponding side plates 25 and away from each other. That is, the mounting bracket 20 is formed to have a so-called hat-shaped cross section. The bending line between the side plate 25 and the engaging portion 26 is inclined toward the ceiling in the sliding direction of the housing 2 of the lamp 10 (direction of arrow T in the figure). Therefore, the ceiling-side surface of each engaging portion 26 is an inclined surface 27 that is inclined in the direction of the arrow T in the direction of approaching the ceiling.

The distance between the outer surfaces of the two side plates 25 of the mounting bracket 20, that is, the width of the fixing portion 22 along the lateral direction is determined by the engagement hole portion of the engagement hole 7 provided in the bottom wall 2a of the housing 2 of the lamp 10. It is designed to have a value slightly smaller than the width in the direction orthogonal to the arrow T direction of 7b. That is, the housing 2 of the lamp 10 is slid in the direction of arrow T in parallel with the ceiling while the holding portions 24 (two side plates 25 and two engaging portions 26) of the mounting bracket 20 are inserted into the engaging holes 7. As a result, the two side plates 25 of the mounting bracket 20 are fitted into the engagement holes 7b.

Also, the edge of the inclined surface 27 closest to the ceiling of the engaging portion 26 of the mounting bracket 20 (the edge on the near side in the drawing) and the sliding contact surface 23a of the sliding contact plate piece 23 of the fixing portion 22 on the inclined surface 27 side. The distance between them along the direction perpendicular to the ceiling is designed to be smaller than the thickness of the bottom wall 2a of the housing 2 of the lamp 10. For this reason, when the housing 2 is slid in the direction of arrow T with the holding portion 24 of the mounting bracket 20 inserted into the engagement hole 7 of the housing, the edge of the engagement hole 7 of the bottom wall 2a is pushed into the mounting bracket 20. At a position where the distance between the inclined surface 27 and the sliding contact surface 23a is equal to or less than the thickness of the bottom wall 2a, the bottom wall 2a is in contact with the engaging portion 26 and the sliding contact plate. It is sandwiched between the piece 23 and the further movement of the housing 2 is restricted.

In addition, the ceiling between the edge of the inclined surface 27 where the engaging portion 26 of the mounting bracket 20 is farthest from the ceiling (the edge on the far side in the drawing) and the sliding contact surface 23a of the sliding contact plate piece 23 of the fixing portion 22 is designed to be slightly larger than the thickness of the bottom wall 2 a of the housing 2 of the lamp 10 . The two sliding contact plate pieces 23 provide a gap S between the housing 2 and the ceiling so that the bottom wall 2a of the housing 2 does not contact the ceiling when the housing 2 of the lamp 10 is slid along the ceiling. function to form.

A power supply cable 31 is wired in advance on the back side of the ceiling where the base light 100 is mounted, and the tip of the power supply cable 31 is led out into the room through a hole (not shown) in the ceiling. When a plurality of lamps 10 are arranged in a line and connected, power can be supplied to all the lamps 10 with one power supply cable 31 .

The power supply cable 31 is a three-wire type cable having a ground wire in addition to two wires, and is a cable in which a metal wire coated with vinyl and the ground wire are further coated together with vinyl. The power supply cable 31 is, for example, a generally known VVF cable, which is relatively hard to deform and hard. When connecting the power supply cable 31 to the terminal block 6, a construction rule is determined such that the ground wire is connected first and then the two electric wires are connected. Therefore, in the terminal block 6, the connection terminal for the ground wire is located on the front side in the cable insertion direction.

A method of attaching the base light 100 described above to the ceiling will be described below.
First, the two mounting brackets 20 are attached to the ceiling. At this time, the two mounting brackets 20 are fixed to the ceiling with the hole in the ceiling through which the power supply cable 31 led out interposed therebetween. The two mounting brackets 20 are attached in the same direction at positions separated from each other by a predetermined distance along the direction in which the lamp 10 is attached to the ceiling (that is, the longitudinal direction of the lamp 10). The interval between the two mounting brackets 20 is determined according to the interval between the two engaging holes 7 provided in the bottom wall 2a of the housing 2 of the lamp 10. As shown in FIG. The orientation of each mounting bracket 20 is determined according to the sliding direction when mounting the lamp 10 on the ceiling. When a plurality of lamps 10 are arranged in a row, mounting metal fittings 20 twice as many as the number of lamps 10 are attached to the ceiling at predetermined intervals.

When attaching each mounting bracket 20 to the ceiling, the fixing part 22 is placed in contact with the ceiling with the two screw holes 21 aligned in the longitudinal direction of the lamp 10 (the direction indicated by the arrow T in FIG. 4). A screw is passed through the hole 21 to fix the fixing part 22 to the ceiling. The arrow T indicates the sliding direction when the lamp 10 is attached to the ceiling, and each mounting bracket 20 is attached to the ceiling in such a direction that the slanted surface 27 inclines toward the tip of the arrow T direction toward the ceiling. The two mounting brackets 20 are separated from each other along the arrow T direction and mounted on the ceiling at a predetermined interval.

After that, the lamp 10 (master) having the power supply device 4 described above is attached to the two mounting brackets 20 . At this time, first, the power supply cable 31 is connected to the terminal block 6 drawn out from the lead-in hole 5 provided in the bottom wall 2 a of the housing 2 of the lamp 10 . FIG. 6 shows a state in which the power supply cable 31 is connected to the terminal block 6. As shown in FIG.

From this state, while pushing the connection cable 8 of the terminal block 6 into the lead-in hole 5 provided in the bottom wall 2a of the housing 2 of the lamp 10, the lamp 10 is brought closer to the ceiling. Then, the terminal block 6 is pushed into the lead-in hole 5 , and the holding portions 24 of the mounting bracket 20 are inserted into the two engaging holes 7 provided in the bottom wall 2 a of the housing 2 of the lamp 10 . At this time, the lamp 10 is brought closer to the ceiling until the bottom wall 2a of the housing 2 contacts the sliding contact surface 23a of the sliding contact plate piece 23 of the fixing portion 22 of the mounting bracket 20. FIG. Further, from this state, the lamp 10 is slid along the ceiling in the arrow T direction while the bottom wall 2a of the housing 2 is brought into sliding contact with the sliding contact surface 23a of the sliding contact plate piece 23 .

When the lamp 10 is slid in the direction of the arrow T, the edge of the engagement hole 7 of the bottom wall 2a slides on the inclined surface 27 of the engaging portion 26 of the mounting bracket 20, and the housing 2 moves along the inclination of the inclined surface 27. Pushed up towards the ceiling. The distance in the direction orthogonal to the ceiling between the part where the edge of the engagement hole 7 contacts the inclined surface and the sliding contact surface 23a of the sliding contact plate piece 23 in the middle of the slide is the bottom wall 2a of the housing 2. , the edge of the engaging hole 7 of the bottom wall 2a is sandwiched between the engaging portion 26 and the sliding contact plate piece 23, restricting further sliding, and the housing 2 is removed from the mounting bracket 20. fixed to This state is shown in FIG.

After that, when another lamp 10' (slave) without the power supply device 4 is connected to the rear end side of the lamp 10 in the longitudinal direction, the two hooks provided on the bottom wall 2a of the housing 2 of the lamp 10' The holding part 24 of the mounting bracket 20 corresponding to the joint hole 7 is inserted, and the lamp 10' is slid in the direction of arrow T to be mounted on the ceiling. The lamp 10 ′ does not have the power supply 4 and the terminal block 6 , but has a plug 40 connected to the light source module 14 . Other structures are substantially the same as those of the lamp fixture 10 described above. The outlet 9 is unnecessary when the lighting fixture 10' is the rearmost lighting fixture 10', and is necessary when the lighting fixture 10' is the middle lighting fixture 10'. In the following description, constituent elements of the lamp 10' that function similarly to those of the lamp 10 are denoted by the same reference numerals, and detailed explanation thereof will be omitted.

FIG. 8 is a schematic diagram showing an electrical connection structure between the lamp 10 (master) and the lamp 10' (slave). The connection structure is the same even when three or more lamps 10 are connected. A plug 40 connected to the outlet 9 of the lamp 10 already attached to the ceiling is provided at the tip of the lamp 10' in the sliding direction (direction of arrow T). The plug 40 is provided with electrodes (two electrode terminals 41 and 42 and a ground pin 43) protruding from an end wall 2c at the tip of the housing 2 of the lamp 10' in the direction of arrow T. The plug 40 has two electrode terminals 41 , 42 and a ground pin 43 . The electrode terminals 41 and 42 and the ground pin 43 protrude from the tip of the lamp 10' in the sliding direction. The two electrode terminals 41 and 42 are formed by plate-like pieces extending along a plane orthogonal to the ceiling and parallel to the sliding direction of the lamp 10'.

On the other hand, the outlet 9 of the lamp 10 has a slit-shaped hole (not shown) for receiving the two plate-shaped electrode terminals 41 and 42 and a slit-shaped hole (not shown) for receiving the earth pin 43 . The connection terminal of the outlet 9 to which the ground pin 43 is connected is provided on the front side in the inserting direction of the plug 40 from the connection terminal to which the electrode terminals 41 and 42 are connected. The three slit-shaped holes of the outlet 9 extend along a plane perpendicular to the ceiling and parallel to the sliding direction of the lamp 10'. Therefore, the plug 40 can be inserted into the outlet 9 in conjunction with the operation of sliding the lamp 10' in the direction of the arrow T and attaching it to the ceiling.

When attaching the lamp 10' and inserting the plug 40 at the same time, the plug 40 provided at the tip of the lamp 10' in the sliding direction is inserted into the outlet 9 provided at the rear end of the lamp 10, and the lamp 10' is pulled out as indicated by the arrow. It will slide in the T direction. Therefore, when the plug 40 is inserted into the outlet 9, the housing 2 of the lamp 10' slightly moves toward the ceiling. The plug 40 and the outlet 9 are structured to allow relative movement in a direction orthogonal to the ceiling in order to allow the lamp 10' to move toward the ceiling.

According to the base light 100 (illumination device) of the embodiment described above, the lamp 10 is attached to the ceiling with the holding portion 24 of the mounting bracket 20 fixed to the ceiling inserted into the engagement hole 7 of the housing 2 of the lamp 10. The lighting fixture 10 can be reliably and stably attached to the ceiling by a simple operation of sliding along one direction. In addition, according to this embodiment, the mounting bracket 20 fixed to the ceiling is inserted into the engagement hole 7 provided in the bottom wall 2a of the housing 2 and is not visible from the outside of the base light 100. It is possible to improve the aesthetic appearance and enhance the design.

Further, according to this embodiment, when the lamp 10 is slid along the ceiling in the direction of the arrow T and attached to the mounting bracket 20, a gap S is provided between the bottom wall 2a of the housing 2 and the ceiling so that the lamp 10 can be Since the bottom wall 2a of the housing 2 is brought into sliding contact with the sliding contact surface 23a of the sliding contact plate piece 23 of the mounting bracket 20, the problem that the bottom wall 2a of the housing 2 slides against the ceiling when the lamp 10 is attached is eliminated. can be prevented.

Further, according to this embodiment, since the connection cable 8 that connects the terminal block 6 of the lamp 10 to the power supply device 4 is a flexible and elastically deformable cable, the terminal block 6 of the lamp 10 can be connected outside the housing 2 . The terminal block 6 can be accommodated in the housing 2 after being pulled out and connected to the power supply cable 31 . Therefore, according to this embodiment, unlike the prior art, it is not necessary to have a structure in which the lamp body and the chassis are separated, and the lighting fixture 10 in which the lamp body and the chassis are integrated can be directly attached to the ceiling.

Further, according to the present embodiment, since the connection cable 8 is made flexible, when the lamp 10 is slid along the ceiling and attached, the housing 2 of the terminal block 6 to which the relatively stiff power supply cable 31 is connected can be removed. It is possible to allow the movement inside the terminal block 6, and to prevent the problem that the connection portion of the power supply cable 31 to the terminal block 6 is subjected to undesired stress.

Further, as in this embodiment, the direction in which the power supply cable 31 is inserted into the housing 2 from the lead-in hole 5 provided in the bottom wall 2a of the housing 2 toward the power supply device 4 is made to coincide with the sliding direction of the lamp 10. As a result, when the lamp 10 is slid in the direction of arrow T and attached to the ceiling, the power supply cable 31 is pulled out slightly from the lead-in hole 5 of the bottom wall 2a of the housing 2. FIG. Therefore, the mounting operation of the lamp 10 can slightly expand the space for wiring the connection cable 8 in the recess 3 of the housing 2, and the bending stress applied to the connection cable 8 can be reduced. In this case, since the terminal block 6 moves relatively away from the power supply device 4 by the mounting operation of the lamp 10, the terminal block 6 pushed into the housing 2 does not interfere with the power supply device 4. can be prevented. It should be noted that the lead-in hole 5 provided in the bottom wall 2a of the housing 2 ensures that the terminal block 6 remains in the power supply even if the terminal block 6 moves within the housing 2 as described above during the operation of attaching the lamp 10 to the ceiling. It is arranged at a position away from the power supply device 4 by a distance that does not interfere with the power supply device 4.

Further, according to the present embodiment, when a plurality of lamps 10 are arranged in series in the longitudinal direction by the master-slave method, the lamps 10', which serve as slave units, are interlocked with the installation operation of the lamps 10', which serve as slave units, to the ceiling. 10 becomes possible. In other words, according to this embodiment, the mounting of the lamp 10' on the ceiling and the electrical connection can be performed simultaneously in one operation, and workability can be improved. Moreover, since the electrical connection of the lamp 10' to the lamp 10 is secured by attaching the lamp 10' to the ceiling, the reliability of the electrical connection of the lamp 10' can be improved.

The above-described embodiments are provided as examples and are not intended to limit the scope of the invention. The above-described embodiments can be implemented in various other forms, and various omissions, replacements, and modifications can be made without departing from the scope of the invention. The embodiments described above are included in the scope and gist of the invention, and are included in the scope of the invention described in the claims and equivalents thereof.

For example, in the above-described embodiment, the case where the lamp 10 is attached by sliding it along the ceiling in the longitudinal direction has been described. good. In this case, as shown in FIG. 9, the engagement hole 7 provided in the bottom wall 2a of the housing 2 of the lamp 10 is formed in a posture different from that of the above-described embodiment by 90 degrees, and the mounting bracket 20 fixed to the ceiling is mounted. It should be rotated 90 degrees. Since the lamp 10 equipped with the power supply device 4 serving as the master unit does not need to be considered for electrical connection (plugging operation) to other lamps, such a mounting method of sliding in the lateral direction is preferred. is no problem.

However, even when the lamp 10 serving as the master unit is attached by sliding it in the lateral direction, the terminal block 6 to which the relatively stiff power supply cable 31 led out from the ceiling is connected is inside the recess 3 of the housing 2. move slightly. In this embodiment, since the connection cable 8 connecting the terminal block 6 to the power supply device 4 is made flexible and bendable, such movement of the terminal block 6 within the recess 3 can be allowed. , the stress applied to the connecting portion of the power supply cable 31 can be reduced.

In the above-described embodiment, the connection structure in which the power supply cable 31 led out from the ceiling is directly inserted into the terminal block 6 of the lamp 10 is adopted. A connector 32 for connecting to the terminal block 6' may be provided at the tip of the terminal block 6' and the connector 32 may be connected. In this case, the power supply cable 31 can be connected to the lamp 10 simply by inserting the connector 32 into the terminal block 6' pulled out from the lead-in hole 5 of the housing 2, and workability can be improved. Also in this case, the connection structure between the terminal block 6' and the connector 32 is such that the ground wire of the power supply cable 31 is connected prior to the power supply line. Moreover, the terminal block 6 ′ and the connector 32 each have a size and a shape that allow them to be inserted into the lead-in hole 5 provided in the bottom wall 2 a of the housing 2 .
The invention described in the scope of claims at the time of filing of the present application will be additionally described below.
[1]
a light source module;
a power supply connected to the light source module;
a terminal block of the power supply;
a housing facing the mounting surface from which the power supply cable connected to the terminal block is led out, having an insertion portion through which the terminal block can be inserted, and in which the power supply device is disposed;
a flexible connection cable that connects the terminal block to the power supply device and has a length that allows the terminal block to be arranged outside the housing via the insertion portion;
a mounting bracket for attaching the housing to the mounting surface in a state in which the terminal block to which the power supply cable is connected is retracted into the housing through the insertion portion and accommodated;
lighting device.
[2]
further comprising a connector that can connect the power supply cable to the terminal block and that can be inserted through the insertion portion;
The illumination device of [1].
[3]
The insertion portion is arranged at a position separated from the power supply device by a distance such that the terminal block does not interfere with the power supply device when the housing is attached to the mounting surface,
The illumination device of [1].

DESCRIPTION OF SYMBOLS 1... Attachment surface 2... Housing 2a... Bottom wall 3... Recess 4... Power supply device 5... Lead-in hole 6, 6'... Terminal block 7... Engagement hole 8... Connection cable, DESCRIPTION OF SYMBOLS 9... Outlet 10, 10'... Lamp, 11... LED element, 12... Translucent cover, 13... Substrate, 14... Light source module, 20... Mounting bracket, 22... Fixing part, 23... Sliding plate piece, 23a... Sliding contact surface 24 Holding portion 26 Engaging portion 27 Inclined surface 31 Feeding cable 32 Connector 40 Plug 100 Base light S Gap T Slide direction.

Claims (3)

a light source module;
a power supply device connected to the light source module and supplying predetermined power to the light source module ;
a terminal block of the power supply;
a housing having a bottom wall provided with an insertion portion through which the terminal block can be inserted, and in which the power supply device is disposed ;
a flexible connection cable that connects the terminal block and the power supply device, has a length that allows the terminal block to be arranged outside the bottom wall through the insertion portion, and is flexible;
a mounting bracket having a fixing portion fixed to the mounting surface and a holding portion holding the housing ;
The terminal block is pulled out from the insertion portion to the outside of the bottom wall, and a tip of a power supply cable led out from a hole in the mounting surface is connected to the terminal block, and the fixing portion is fixed to the mounting surface, In addition, in a state in which the terminal block to which the power supply cable is connected is retracted into the housing through the insertion portion and accommodated, the housing is attached to the mounting bracket so that the bottom wall faces the mounting surface. A lighting device that is held by a holding portion . further comprising a connector that can connect the power supply cable to the terminal block and that can be inserted through the insertion portion;
3. The lighting device of claim 1. The insertion portion is arranged at a position separated from the power supply device by a distance such that the terminal block does not interfere with the power supply device when the housing is attached to the mounting surface,
3. The lighting device of claim 1.

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