JP2020123469A - Illuminating device - Google Patents

Abstract

To provide an illuminating device that has a structure that can be made lightweight.SOLUTION: An illuminating device 1 comprises: an LED module 20 for applying light; and a main body part 10 comprising a bottom plate part 11 in which a first bottom plate surface 111 and a second bottom plate surface 112 that is a surface opposite to the first bottom plate surface 111 are formed, and the LED module 20 is attached to the first bottom plate surface 111, a top plate part 12 in which a first top plate surface 121 and a second top plate surface 122 that is a surface opposite to the first top plate surface 121 are formed, and the first top plate surface 121 is exposed, and a connecting part 13 having a shape extending along a first direction perpendicular to a thickness direction of the bottom plate part 11, and connecting the second bottom plate surface 112 and the first top plate surface 121, and in which the bottom plate part 11, the top plate part 12, and the connecting part 13 are integrally formed.SELECTED DRAWING: Figure 3

Description

The present invention relates to a lighting device.

BACKGROUND ART Conventionally, as in Patent Document 1, there is a lighting device installed in a building with a high ceiling such as a factory or a gymnasium and illuminating an irradiation space from above.

The lighting device of Patent Document 1 includes an LED (Light Emitting Diode) that is a light source that emits light, a power supply board that supplies power to the LED, and a main body that mounts the LED on the outside and the power supply board inside. Equipped with. The main body section has a storage section for storing the power supply board and a mounting section for mounting the LEDs on the lower surface side. Further, the storage portion and the mounting portion are integrally formed by extrusion molding using a metal material.

JP, 2018-14231, A

By the way, the lighting device installed in a building with a high ceiling as in Patent Document 1 is required to be lightweight due to factors such as convenience of installation work.

However, the illuminating device of Patent Document 1 has a problem that the illuminating device as a whole becomes large and heavy due to the provision of the housing portion in the main body. In particular, the storage part is formed by extrusion molding using a metal material, and it is difficult to form a thin member by extrusion molding. Is difficult to convert.

It is an object of the present invention to provide a lighting device having a structure that can be reduced in weight.

A lighting device according to an aspect of the present invention includes a light source that emits light, a first bottom plate surface, and a second bottom plate surface that is a surface opposite to the first bottom plate surface. A bottom plate portion on which a light source is attached and a first top plate surface and a second top plate surface that is a surface opposite to the first top plate surface are formed to expose the first top plate surface. A top plate part having a shape, and a connecting part that connects the second bottom plate surface and the first top plate surface and has a shape that extends along a first direction perpendicular to the thickness direction of the bottom plate part. A bottom plate part, a top plate part, and a main body part integrally formed with a connecting part.

The present invention has an advantage that the weight can be reduced as compared with the lighting device of Patent Document 1.

It is the perspective view which looked at the illuminating device concerning an embodiment from the upper part. It is the perspective view seen from the lower part of the lighting installation concerning an embodiment. It is a disassembled perspective view of the illuminating device which concerns on embodiment. It is a front view of the illuminating device which concerns on embodiment. It is a rear view of the illuminating device which concerns on embodiment. It is a right side view of the illuminating device which concerns on embodiment. It is a left side view of the illuminating device concerning an embodiment. It is a top view of the illuminating device which concerns on embodiment. It is a bottom view of the illuminating device which concerns on embodiment. It is sectional drawing which shows the AA cross section in FIG. 8 of the main-body part which concerns on embodiment.

Hereinafter, embodiments of the present invention will be described in detail. In the drawings, the same reference numerals are the same or corresponding ones. Further, in the drawings, the size relationship of each component may be different from the actual one. The embodiments are examples of the present invention, and the present invention is not limited to the configurations of the embodiments, and various modifications can be made without departing from the technical idea of the present invention. ..

FIG. 1 is a perspective view of an illumination device according to an embodiment as seen from above. FIG. 2 is a perspective view of the lighting device according to the embodiment as seen from below. FIG. 3 is an exploded perspective view of the lighting device according to the embodiment. FIG. 4 is a front view of the lighting device according to the embodiment. FIG. 5 is a rear view of the lighting device according to the embodiment. FIG. 6 is a right side view of the lighting device according to the embodiment. FIG. 7 is a left side view of the lighting device according to the embodiment. FIG. 8 is a top view of the lighting device according to the embodiment. FIG. 9 is a bottom view of the lighting device according to the embodiment. In the embodiment, the lighting device 1 will be described as being installed on an object to be installed such as a ceiling of a building (not shown). However, the object to be installed is not limited to this, and may be, for example, a road light. Further, although the up, down, left, right, and front and rear directions of the lighting device 1 are defined in FIG. 1, they are defined for the description of the embodiment, and the arrangement and orientation of the device and parts of the present invention are limited. Not something to do.

As shown in FIGS. 1 to 9, the lighting device 1 includes a main body portion 10, an LED module 20 corresponding to a light source, a lens 30, a cover 40, a power supply device 50, and an arm 60.

FIG. 10 is a cross-sectional view showing the AA cross section in FIG. 8 of the main body according to the embodiment. The main body part 10 includes a bottom plate part 11, a top plate part 12, a connecting part 13 connecting the bottom plate part 11 and the top plate part 12, a plurality of arm mounting parts 14 provided on the bottom plate part 11, and a bottom plate part. 11 has a plurality of heat dissipation parts 15. The main body portion 10 is formed by extrusion molding, and the bottom plate portion 11, the top plate portion 12, the connecting portion 13, the arm attaching portion 14, and the heat radiating portion 15 are integrally formed. For this reason, the main body 10 has a constant cross-sectional shape perpendicular to the extrusion direction in extrusion molding. Here, the extrusion direction is referred to as the first direction. In the embodiment, the first direction corresponds to the front-back direction in FIG. Further, in the embodiment, holes necessary for assembling the lighting device 1, such as an arm mounting hole 141, a top plate through hole 123, and a bottom plate side mounting hole 113, which will be described later, are formed. Although the shape of the stepped surface perpendicular to the direction is not constant, in the present invention, even when the hole necessary for assembling the lighting device 1 is formed in the main body 10 as described above, the main body 10 is It is assumed that the shape of the step surface perpendicular to the one direction is constant.

The bottom plate portion 11 has a plate-like shape that is parallel to the first direction. The bottom plate portion 11 has a thickness as shown in a projection view (corresponding to the front view of FIG. 4) projected on a plane perpendicular to the first direction. The thickness direction of the bottom plate portion 11 is perpendicular to the first direction, and in the embodiment, the thickness direction of the bottom plate portion 11 corresponds to the vertical direction in FIG. The thickness direction means the thickness direction of the plate-shaped member. Further, the bottom plate portion 11 is formed with a lower surface perpendicular to the thickness direction of the bottom plate portion 11 and an upper surface which is a surface opposite to the lower surface. Here, the lower surface of the bottom plate portion 11 is referred to as a first bottom plate surface 111, and the upper surface of the bottom plate portion 11 is referred to as a second bottom plate surface 112. Further, a bottom plate through hole (not shown) that penetrates in the thickness direction is formed in the bottom plate portion 11, and a bush 16 is inserted into the bottom plate through hole (see FIG. 3 ). Wiring that electrically connects the LED module 20 and the power supply device 50 is inserted into the bush 16. Further, a bottom plate side mounting hole 113 for mounting the cover 40 is formed in the first bottom plate surface 111 of the bottom plate portion 11.

The top plate portion 12 has a plate-like shape that is parallel to the first direction. The top plate portion 12 has a thickness as shown in a projection view (corresponding to the front view of FIG. 4) projected on a plane perpendicular to the first direction. The thickness direction of the top plate portion 12 is perpendicular to the first direction, and in the embodiment, the thickness direction of the top plate portion 12 corresponds to the vertical direction in FIG. Further, the top plate portion 12 has a lower surface perpendicular to the thickness direction of the top plate portion 12 and an upper surface which is a surface opposite to the lower surface. Here, the lower surface of the top plate portion 12 is referred to as a first top plate surface 121, and the upper surface of the top plate portion 12 is referred to as a second top plate surface 122. The top plate portion 12 is arranged so that the first top plate surface 121 and the second bottom plate surface 112 face the bottom plate portion 11. In addition, a wiring hole (not shown) that penetrates in the thickness direction is formed in the top plate portion 12. A wiring for electrically connecting the LED module 20 and the power supply device 50 is inserted into the wiring hole. Further, it is desirable that a plurality of top plate through holes 123 that penetrates in the thickness direction be formed in the top plate portion 12 (see FIG. 3 ). The first top plate surface 121 of the top plate portion 12 is exposed to the outside.

The connecting portion 13 has a plate-like shape extending along the first direction. The connecting portion 13 has a thickness as shown in a projection view (corresponding to the front view of FIG. 4) projected on a plane perpendicular to the first direction. The thickness direction of the connecting portion 13 is perpendicular to the first direction. Further, the thickness direction of the connecting portion 13, the thickness direction of the bottom plate portion 11 and the thickness direction of the top plate portion 12 are different directions. In the embodiment, the thickness direction of the connecting portion 13 corresponds to the left-right direction in FIG. 1, and the thickness direction of the connecting portion 13 is perpendicular to the thickness direction of the bottom plate portion 11 and the thickness direction of the top plate portion 12. Also, one end side of the connecting portion 13, that is, the lower side in FIG. 1, is connected to the second bottom plate surface 112. Further, the other end side of the connecting portion 13, that is, the upper side in FIG. 1, is connected to the first top plate surface 121.

The arm attachment portions 14 are provided at the end portions of the bottom plate portion 11 in the second direction, respectively. Here, the second direction is a direction perpendicular to the first direction and the thickness direction of the bottom plate portion 11, and corresponds to the left-right direction in FIG. The arm attachment portion 14 has a plate-like shape extending along the first direction. The arm attachment portion 14 has a thickness as shown in a projection view (corresponding to the front view of FIG. 4) projected on a plane perpendicular to the first direction. The thickness direction of the arm attachment portion 14 is perpendicular to the first direction. The thickness direction of the arm attachment portion 14 and the thickness direction of the bottom plate portion 11 are different directions, and in the embodiment, the thickness direction of the arm attachment portion 14 is the left-right direction in FIG. 1. Further, the plurality of arm attachment portions 14 are provided so as to protrude from the second bottom plate surface 112. Further, arm mounting holes 141 are formed in the plurality of arm mounting portions 14 in the thickness direction.

The plurality of heat radiating portions 15 each have a plate-like shape extending along the first direction. The heat radiating portion 15 has a thickness as shown in a projection view (corresponding to the front view of FIG. 4) projected on a plane perpendicular to the first direction. The thickness direction of the heat dissipation part 15 is perpendicular to the first direction. Further, the thickness direction of the heat dissipation part 15 and the thickness direction of the bottom plate part 11 are different directions, and in the embodiment, the thickness direction of the heat dissipation part 15 is the left-right direction in FIG. 1. The lower end of the heat radiating portion 15 is integrated with the second bottom plate surface 112, and the heat radiating portion 15 is provided so as to project from the second bottom plate surface 112. Further, the plurality of heat dissipation portions 15 are formed so as to be arranged along the second direction.

Further, in a projection view (corresponding to the front view of FIG. 4) in which the main body portion 10 is projected on a plane perpendicular to the first direction, the main body portion 10 is formed so as to have a substantially H shape in a horizontal direction. Is desirable. Here, the H shape refers to a shape in which the bottom plate portion 11 and the top plate portion 12 are parallel to each other, and the connecting portion 13 is provided perpendicularly to the bottom plate portion 11 and the top plate portion 12. Further, the center of the bottom plate portion 11 in the second direction and the center of the top plate portion 12 in the second direction are located on the same straight line, and the connecting portion 13 is the center of the bottom plate portion 11 in the second direction and the top plate. More preferably, it is formed so as to connect the centers of the portions 12 in the second direction.

In the cross section perpendicular to the first direction, the main body 10 is covered with the first top plate surface 121 on the upper side and with the second bottom plate surface 112 on the lower side, and one side is the connecting portion. It is desirable that a space 17 is formed which is covered with 13 and the other side of which communicates with the outside.

Further, in order to reduce the weight, it is desirable that each member forming the main body 10 be thin. Particularly, as compared with the arm attachment portion 14 that is a member that connects the bottom plate portion 11 and the top plate portion 12 and requires strength, and the arm attachment hole 141 is formed and is fastened to the arm fixing member 63 described later. Thus, the heat dissipation portion 15 can be made thin. Therefore, it is desirable that the thickness of the heat radiating portion 15 be smaller than the thickness of the connecting portion 13 or the thickness of the arm attaching portion 14.

Further, it is desirable that the material of the main body portion 10 has a high thermal conductivity, a light material, and easy extrusion molding. Examples of such a material include aluminum or aluminum alloy. Therefore, the material of the main body 10 is preferably aluminum or aluminum alloy.

As shown in FIG. 3, the LED module 20 has a plurality of LEDs 21 and a mounting substrate 22. As the LED 21, for example, a surface-mounted white LED or the like is used. The mounting board 22 is a flat board. The LEDs 21 are arranged and mounted on a mounting surface 221 that is one surface of the mounting substrate 22. Further, the mounting substrate 22 is provided with wiring conductors (not shown) for electrically connecting the electrodes of the LEDs 21. In addition, a terminal (not shown) for power supply is provided on the mounting substrate 22, and one end of a wiring that electrically connects the LED module 20 and the power supply device 50 is attached.

Further, the LED module 20 is attached to the first bottom plate surface 111 with the surface opposite to the mounting surface 221 facing the first bottom plate surface 111 of the bottom plate portion 11. The LED module 20 is attached so that at least the heat generated by the LED 21 is transferred to the main body portion 10, and is attached by, for example, a screw or a heat conductive adhesive. By mounting the LED module 20 on the main body 10 in this manner, when the LED 21 emits light, the light of the LED 21 is emitted downward, and the heat generated by the LED 21 is transferred to the main body 10 and is released from the heat radiating portion 15 and the like. Dissipates heat into the atmosphere.

The lens 30 is an optical element that diverges or converges the light emitted from the LED module 20. As shown in FIG. 3, the lens 30 is arranged so as to face the mounting surface 221 of the mounting substrate 22.

The cover 40 is a member that covers the LED module 20 and the lens 30. The cover 40 is made of a translucent synthetic resin or the like, and is formed in a box shape having an opening on the upper surface. As shown in FIG. 3, the opening of the cover 40 faces the first bottom plate surface 111, and the cover 40 is attached to the first bottom plate surface 111 so as to cover the LED module 20 and the lens 30. Further, a cover through hole 41 is formed in the cover 40 at a position corresponding to the bottom plate side mounting hole 113 formed in the first bottom plate surface 111, and a screw is inserted into the bottom plate side mounting hole 113 and the cover through hole 41. Then, the cover 40 is attached to the first bottom plate surface 111.

As shown in FIG. 3, the power supply device 50 includes a power supply circuit 51, a case 52, and a terminal block 53.

The power supply circuit 51 is a circuit for supplying power to the LED module 20. The power supply circuit 51 has a power conversion circuit that converts electric power supplied from the outside such as a commercial power supply into a direct current required for lighting the LED module 20, and a control circuit that controls the power conversion circuit. The power conversion circuit includes, for example, a full-wave rectifier, a step-up chopper circuit, and a step-down chopper circuit. The control circuit obtains operation information regarding dimming input from an operation terminal or the like that receives a user's operation, and controls the power conversion circuit according to the obtained operation information to dimm the LED module 20. Further, the power supply circuit 51 is attached with the other end of the wiring that electrically connects the LED module 20 and the power supply device 50.

The case 52 is a component that covers the power supply circuit 51. The case 52 has a rectangular case plate 521 and four side plates 522 that project in the same direction (downward in FIG. 1) from the four sides of the case plate 521. The case 52 is composed of a single metal plate, and the side plate 522 is formed by bending and bending a plate material connected to the sides of the case plate 521.

The power supply circuit 51 is attached to the surface (the lower surface in FIG. 1) of the case plate 521 on the side where the side plate 522 projects. Further, a side plate through hole (not shown) is formed in at least one place on the side plate 522, and a wiring for electrically connecting the power supply circuit 51 and the terminal block 53 is inserted into the side plate through hole. In addition, the end portions (lower side in FIG. 1) of the four side plates 522 opposite to the connection side with the case plate 521 are attached to the main body portion 10 in a state of being in contact with the second top plate surface 122 of the top plate portion 12. Fixed. That is, the power supply circuit 51 is surrounded by the case 52 and the top plate portion 12.

Further, it is desirable that a fixing piece 523 is provided at an end portion (a lower end portion in FIG. 1) of the side plate 522 opposite to the side connected to the case plate 521. The fixing piece 523 is provided at a position corresponding to the top plate through hole 123 of the top plate portion 12, and the fixing piece 523 is inserted into the top plate through hole 123 and caulked in a state that the case 52 and the top plate portion 12 are separated from each other. Fixed. The term “crimped” as used herein means that two members are fixed to each other by plastically deforming by hitting or bending a metal joint. The case 52 and the top plate portion 12 are fixed by being crimped, and heat is transferred from the crimped portion. Therefore, the heat generated in the power supply circuit 51 is transmitted to the main body portion 10 via the case 52 and is radiated from the heat radiation portion 15 and the like to the atmosphere.

The terminal block 53 is provided on the outer surface of the side plate 522. The terminal block 53 is electrically connected to the power supply circuit 51 via wiring. Further, the terminal block 53 is connected to a power line to which power is externally supplied or a signal line to which operation information is transmitted from the operation terminal.

As shown in FIG. 3, the arm 60 has an arm base 61 and two arm arms 62. The arm 60 is formed by bending and bending a long metal plate in the same direction (downward in FIG. 1) at both ends in the longitudinal direction to form a substantially U-shape.

In a projection view (corresponding to the top view of FIG. 8) projected on a plane perpendicular to the thickness direction of the arm base 61, the arm base 61 has a first arm arm 62 side closer to one arm arm 62 side than the center in the longitudinal direction. One arm base through hole 611 and a second arm base through hole 612 are formed closer to the other arm arm 62 than the center in the longitudinal direction. A suspension bolt is inserted into the first arm base through hole 611 and the second arm base through hole 612, and the arm base 61 is fastened with a nut, whereby the arm base 61 is fixed to the object to be installed.

Further, it is desirable that the first arm base through hole 611 has a shape in which a long hole extending in the longitudinal direction of the arm 60 and a circular hole are combined. Further, in the first arm base through hole 611, a circular hole is formed at the other arm arm 62 side end of the elongated hole, and the radius of the circular hole is longer than the diameter of the elongated hole in the lateral direction. Is desirable. The second arm base through hole 612 is preferably a long hole extending in the lateral direction of the arm 60.

In the arm arm portion 56, a first arm arm portion through hole 621 and a second arm arm portion through hole 622 are formed at positions corresponding to the arm attaching hole 141 of the arm attaching portion 14. The first arm arm through hole 621 is a circular hole, and the second arm arm through hole 622 is an arc-shaped elongated hole. By inserting and fastening an arm fixing member 63 such as a screw or a rivet into the arm mounting hole 141 and the first arm arm through hole 621 or the second arm arm through hole 622, the arm 60 is fixed. Fixed to. Further, since the second arm arm through-hole 622 has an arc shape, the main body 10 can be rotated up to a predetermined angle even after the lighting device 1 is installed on an object to be installed.

Further, as shown in FIGS. 4 and 6, the projected area of the arm arm portion 56 projected on the surface perpendicular to the first direction (that is, the front surface in FIG. 1) is perpendicular to the second direction. It is smaller than the projected area of the arm arm portion 56 projected on the surface (that is, the side surface in FIG. 1).

As described above, in the illumination device 1 according to the embodiment, as a first aspect, a light source (LED module 20) for irradiating light, a first bottom plate surface 111, and a surface on the opposite side of the first bottom plate surface 111. The bottom plate portion 11 on which the second bottom plate surface 112 is formed and the light source (LED module 20) is attached to the first bottom plate surface 111, and the first top plate surface 121 and the first top plate surface 121. The second top plate surface 122, which is the opposite surface, is formed and the first top plate surface 121 is exposed, and the first direction perpendicular to the thickness direction of the bottom plate part 11. Has a connecting portion 13 that connects the second bottom plate surface 112 and the first top plate surface 121 and has a shape extending along the bottom plate portion 11, the top plate portion 12, and the connecting portion 13 are integrally formed. And a main body portion 10 that is formed. With this configuration, the housing portion is not formed in the main body portion 10, and the weight of the lighting device can be reduced as compared with the lighting device of Patent Document 1. Further, since the first top plate surface 121 is exposed, heat can be radiated to the external air from the first top plate surface 121, and the heat generated by the LED module 20 can be efficiently radiated to the external air. You can

Furthermore, in the illumination device 1 according to the embodiment, as a second aspect, a configuration in which the connecting portion 13 has a plate shape is added to the configuration of the first aspect. The added configuration has the effect of simplifying the structure of the main body 10.

Furthermore, in the illumination device 1 according to the embodiment, as a third aspect, in the cross section perpendicular to the first direction in the configuration of the first aspect or the second aspect, the upper side is the first top plate surface 121. A space 17 is formed, which is covered with the second bottom plate surface 112 on the lower side, is covered with the connecting portion 13 on one side, and is communicated with the outside on the other side. With the added configuration, the surface area of the main body portion 10 in contact with the external air is increased, and the heat generated by the LED module 20 can be efficiently radiated to the external air.

Further, in the illumination device 1 according to the embodiment, as the fourth aspect, the heat dissipation portion 15 is provided on the second bottom plate surface 112 in the configuration of any one of the first aspect to the third aspect. The existing configuration is added. With the added configuration, the surface area of the main body 10 is increased, and the heat generated by the LED module 20 can be efficiently radiated into the atmosphere.

Furthermore, in the illumination device 1 according to the embodiment, as a fifth aspect, in the configuration of the fourth aspect, the heat dissipation portion 15 is a part of the main body portion 10 and has a shape extending along the first direction, The main body portion 10 has a configuration in which a bottom plate portion 11, a top plate portion 12, a connecting portion 13, and a heat radiating portion 15 are integrally formed. With the added configuration, the main body portion 10 including the heat dissipation portion 15 can be integrally molded, so that the lighting device can be easily manufactured.

Furthermore, in the lighting device 1 according to the embodiment, as a sixth aspect, a configuration in which the thickness of the heat dissipation portion 15 is thinner than the thickness of the connecting portion 13 is added to the configuration of the fourth aspect or the fifth aspect. .. With the added configuration, the weight of the lighting device can be reduced.

Furthermore, in the illumination device 1 according to the embodiment, as a seventh aspect, the main body portion 10 has a constant cross-sectional shape perpendicular to the first direction in any one configuration of the first aspect to the sixth aspect. Is added. With the added configuration, the main body 10 can be molded by extrusion molding, so that the lighting device can be easily manufactured. Further, since the member formed by extrusion molding is only the main body portion 10 and there is no need to provide a storage portion in the main body portion 10, the weight of the lighting device can be reduced compared to the lighting device of Patent Document 1. ..

Furthermore, the illumination device 1 according to the embodiment includes, as an eighth aspect, an arm 60 for installing the main body portion 10 on the attached portion in any one of the configurations of the first aspect to the seventh aspect. , The main body portion 10 is additionally provided with a configuration having an arm attachment portion 14 to which an arm 60 is attached to an end portion of the bottom plate portion 11 in a second direction perpendicular to the first direction and a thickness direction of the bottom plate portion 11, respectively. There is. With the added configuration, the main body 10 can be easily installed on the attached portion. In particular, by adding the configuration of the eighth aspect to the configuration of the fifth aspect, the gap between the plurality of heat radiating portions 15 is not closed by the arm 60, and the heat stays in the gap between the heat radiating portions 15. Can be suppressed.

Furthermore, in the illuminating device 1 according to the embodiment, as a ninth aspect, in the configuration of the eighth aspect, the arm 60 has an arm base portion 61 fixed to an object to be installed, and an arm attachment portion 14 that is connected to the arm base portion 61. And an arm arm portion 62 attached to, and a projected area of the arm arm portion 62 projected on a plane perpendicular to the first direction is projected on a plane perpendicular to the second direction. A structure smaller than the projected area of the arm arm 62 is added. With the added configuration, the air flow in the first direction becomes smooth, and the heat dissipation performance of the main body can be further improved.

Furthermore, the illumination device 1 according to the embodiment has, as a tenth aspect, the configuration of any one of the first aspect to the ninth aspect, and the second top plate surface 122 serves as a light source (LED module 20). A configuration in which a power supply device 50 that supplies electric power can be attached is added. With the added configuration, the power supply device 50 can be attached without forming a housing portion in the main body portion 10, and the weight of the lighting device can be reduced as compared with the lighting device of Patent Document 1.

Furthermore, in the illumination device according to the embodiment, as the eleventh aspect, the top plate portion 12 has a top plate through hole 123 formed in the configuration of the tenth aspect, and the power supply device 50 is inserted into the top plate through hole 123. The fixing piece 523 is attached and the fixing piece 523 is caulked while being inserted into the top plate through hole 123, so that the power supply device 50 is attached to the top plate part 12. With the added configuration, a mounting member such as a screw or a rivet is not required for mounting the top plate portion 12 and the power supply device 50, and the number of parts is reduced, so that the lighting device 1 can be reduced in weight.

In a twelfth aspect, the illumination device according to the embodiment includes a light source (LED module 20) that irradiates light, and a light source (LED that includes a first bottom plate surface 111 and a second bottom plate surface 112). The module 20) has a bottom plate portion 11 attached to the first bottom plate surface 111, and a heat radiating portion having a shape protruding from the second bottom plate surface 112 and extending along a first direction perpendicular to the thickness direction of the bottom plate portion 11. 15, an arm attachment portion 14 formed integrally with the bottom plate portion 11, an arm base portion 61 installed on an object to be installed, and an arm arm portion 62 connected to the arm base portion 61 and attached to the arm attachment portion 14. And the projected area of the arm arm portion 62 projected on a plane perpendicular to the first direction is the arm arm portion projected on a plane parallel to the first direction and the thickness direction of the bottom plate portion 11. The area is smaller than the projected area of 62. With this configuration, the flow of air flowing along the heat radiating portion 15 becomes smooth, and the heat radiating performance of the main body portion can be further improved.

In addition, in the illumination device according to the embodiment, as a thirteenth aspect, in the configuration of the twelfth aspect, the arm attachment portion 14 has a second direction which is perpendicular to the first direction and the thickness direction of the bottom plate portion 11, respectively. The configuration provided at the end of the bottom plate portion 11 in the direction of is added. With the added configuration, the gaps between the plurality of heat radiating portions 15 are not closed by the arm arms 62, and heat can be suppressed from staying in the gaps between the heat radiating portions 15.

Further, a plurality of modified examples of the embodiment will be described below. In the description of the modified example, the above-described embodiment is referred to as a basic example. Further, each modification may be appropriately combined with the basic example or the modifications.

In the basic example, the bottom plate portion 11, the top plate portion 12, the connecting portion 13, the arm mounting portion 14, and the heat radiating portion 15 are integrally formed by extrusion molding, but the present invention is not limited to this. For example, the bottom plate part 11, the top plate part 12, the connecting part 13, and the arm mounting part 14 may be integrally molded, and the heat dissipation part 15 formed as a separate body may be screwed or caulked and fixed to the bottom plate part 11. In the case of this configuration, the thickness of the heat radiating portion 15 can be made thin, which is difficult to form by extrusion molding, and the number of the heat radiating portions 15 can be increased. Can be obtained.

In the basic example, the case 52 is composed of a single metal plate, but is not limited to this. For example, at least one side plate 522 of the four side plates 522 is a member different from the case plate 521, and is attached to the case plate 521 or the side plate 522 connected to the case plate 521 by a fastening member such as a screw. I do not care. In this structure, the power supply circuit inside the case 52 can be visually checked by removing the fastening member, and the maintenance can be easily performed. In addition, the side plate 522, which is a separate member from the case plate 521, may be added to the configuration of this modified example without the fixing piece 523. With this added configuration, the side plate 522 can be independently removed, and maintenance can be performed more easily.

In the basic example, the LED module 20 is used as a light source, but the light source is not limited to this. For example, another light emitting element such as an organic electroluminescence element may be used as the light source.

In the basic example, the power supply device 50 is attached to the second top plate surface 122 of the top plate portion 12, but the present invention is not limited to this. For example, the lighting device 1 may not include the power supply device 50, and the light source (LED module) may be configured to be supplied with power from a power supply device disposed in another place and lighted. Further, in the case where power is supplied from the power supply device arranged in another place as described above, the main body portion may not have the top plate portion 12 and the connecting portion 13.

DESCRIPTION OF SYMBOLS 1 illumination device, 10 main body part, 11 bottom plate part, 12 top plate part, 13 connecting part, 14 arm mounting part, 15 heat dissipation part, 16 bush, 17 space, 20 LED module, 21 LED, 22 mounting board, 30 lens, 40 cover, 41 cover through hole, 50 power supply device, 51 power supply circuit, 52 case, 53 terminal block, 60 arm, 61 arm base, 62 arm arm, 63 arm fixing member, 111 first bottom plate surface, 112 second Bottom plate surface, 113 bottom plate side mounting hole, 121 first top plate surface, 122 second top plate surface, 123 top plate through hole, 141 arm mounting hole, 221 mounting surface, 521 case plate, 522 side plate, 523 fixed Piece, 611 first arm base through hole, 612 second arm base through hole, 621 first arm arm through hole, 622 second arm arm through hole,

Claims (11)

A light source that emits light,
A first bottom plate surface and a second bottom plate surface that is a surface opposite to the first bottom plate surface, and a bottom plate portion on which the light source is attached to the first bottom plate surface, and a first top plate Surface and a second top plate surface that is a surface opposite to the first top plate surface is formed, and the first top plate surface is exposed, and a thickness direction of the bottom plate part. And a connecting portion that connects the second bottom plate surface and the first top plate surface and has a shape that extends along a first direction perpendicular to the bottom plate portion and the top plate portion. And a main body portion in which the connecting portion is integrally formed,
A lighting device including. The lighting device according to claim 1, wherein the connecting portion has a plate shape. In a cross section perpendicular to the first direction, the upper side is covered by the first top plate surface, the lower side is covered by the second bottom plate surface, one side is covered by the connecting portion, and the other side. The lighting device according to claim 1 or 2, wherein a space is formed whose side is in communication with the outside. The lighting device according to claim 1, wherein a heat dissipation portion is provided on the second bottom plate surface. The heat dissipation portion is a part of the main body portion and has a shape extending along the first direction,
The lighting device according to claim 4, wherein the bottom plate portion, the top plate portion, the connecting portion, and the heat radiating portion are integrally formed in the main body portion. The lighting device according to claim 4, wherein the heat dissipation portion has a thickness smaller than that of the connection portion. The illumination device according to claim 1, wherein a shape of a cross section of the main body section perpendicular to the first direction is constant. An arm for installing the main body on an object to be installed,
The said main-body part has an arm attachment part by which the said arm is attached to the edge part of the said bottom plate part in the 2nd direction each orthogonal to the said 1st direction and the thickness direction of the said bottom plate part. Item 10. The lighting device according to any one of items 7. The arm has an arm base fixed to the object to be installed, and an arm arm connected to the arm base and attached to the arm attaching portion,
The projected area of the arm arm portion projected on a plane perpendicular to the first direction is smaller than the projected area of the arm arm portion projected on a plane perpendicular to the second direction. Item 10. The lighting device according to item 8. The lighting device according to any one of claims 1 to 9, to which a power supply device that supplies electric power to the light source can be attached to the second top plate surface. The top plate has a through hole,
The power supply device has a fixing piece inserted into the through hole,
The lighting device according to claim 10, wherein the power supply device is attached to the top plate portion by caulking the fixing piece inserted in the through hole.

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