JP2018055769A - Lighting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a gap hard to be generated between adjacent side surfaces.SOLUTION: A lighting device according to an embodiment comprises a light-emitting part, a body part, and a power source box. The light-emitting part includes a plurality of light-emitting elements. In the body part, the light-emitting part is provided on the front side. The power source box is provided on the back side of the body part. Further, in the power source box, a rectangular back surface and side surfaces extending from each side of the back surface are formed of one metal plate, and one end surface of the adjacent side surfaces is covered with the other plate surface.SELECTED DRAWING: Figure 1

Description

  Embodiments described herein relate generally to a lighting device.

  Conventionally, lighting devices using light emitting elements such as LEDs (Light Emitting Diodes) are known. Such an illuminating device includes a power supply box that houses a power supply device that supplies power to the plurality of light emitting elements. The power supply box is formed of a single metal plate with a rectangular back surface and four side surfaces extending from each side of the back surface.

JP 2013-084610 A

  However, in the conventional power supply box, a gap is easily generated between adjacent side surfaces, and there is a possibility that insects or the like enter the inside.

  The problem to be solved by the present invention is to provide an illuminating device capable of making it difficult to form a gap between adjacent side surfaces.

  The lighting device according to the embodiment includes a light emitting unit, a main body unit, and a power supply box. The light emitting unit includes a plurality of light emitting elements. The light emitting unit is provided on the front side of the main body. The power supply box is provided on the back side of the main body. In the power supply box, a rectangular back surface and side surfaces extending from each side of the back surface are formed of one metal plate, and one end surface of the adjacent side surfaces is the other plate surface. Covered.

FIG. 1 is a perspective view of the illumination device according to the embodiment. FIG. 2 is a perspective view of the power supply box according to the embodiment. FIG. 3 is an end view of the power supply box according to the embodiment. FIG. 4 is a development view of the power supply box according to the embodiment. FIG. 5 is a development view illustrating a first modification of the power supply box according to the embodiment. FIG. 6 is a development view showing a second modification of the power supply box according to the embodiment.

  The lighting device 1 according to the embodiment described below includes a light emitting unit 60, a main body unit 40, and a power supply box 20. The light emitting unit 60 includes a plurality of light emitting elements 61. The main body 40 is provided with a light emitting unit 60 on the front side. The power supply box 20 is provided on the back side of the main body 40. The power supply box 20 has a rectangular rear surface 21 and side surfaces 22, 221, 222, 221 a, 221 b, 222 a, and 222 b extending from the sides of the rear surface 21, and is formed of a single metal plate, One end surface 222t of the adjacent side surfaces 22, 221, 222, 221a, 221b, 222a, and 222b is covered with the other plate surface 221s.

  In the power supply box 20 according to the embodiment described below, the end surfaces 222t of the opposing side surfaces 22, 221, 222, 221a, 221b, 222a, and 222b are the other opposing side surfaces 22, 221, 222, 221a, 221b, 222a, Each is covered with a plate surface 221s of 222b.

  The power supply box 20 according to the embodiment described below includes a leg portion 23 having a shape in which the distal end side of the side surfaces 22, 221, 222, 221 a, 221 b, 222 a, and 222 b is bent outward. It is fixed to the back side (Z-axis positive direction side) of the main body 40.

  In the power supply box 20 according to the embodiment described below, the leg portion 23 is formed over the entire front end side of the side surfaces 22, 221, 222, 221a, 221b, 222a, and 222b.

  Hereinafter, an illumination device according to an embodiment will be described with reference to the drawings. In the embodiment, the same parts are denoted by the same reference numerals, and redundant description is omitted.

(Embodiment)
First, the structural example of the illuminating device 1 which concerns on embodiment is demonstrated using FIG. FIG. 1 is a perspective view of a lighting device 1 according to the embodiment. In FIG. 1, the example which looked at the illuminating device 1 from the diagonally downward direction is shown.

  The illuminating device 1 shown in FIG. 1 is a so-called downlight, is installed by being suspended on a high ceiling in a building such as a gymnasium, and is used for illuminating a wide illumination space.

  In FIG. 1, for easy understanding, a three-dimensional orthogonal coordinate system including the Z axis with the vertical direction upward as a positive direction is illustrated. Such an orthogonal coordinate system may be shown in other drawings used in the following description.

  As shown in FIG. 1, the lighting device 1 includes a support unit 10, a power supply box 20, a terminal block cover 30, a main body unit 40, a heat radiating unit 50, a light emitting unit 60, and a translucent cover 70. It has.

  The support part 10 suspends and supports the illuminating device 1 so as to be swingable by sandwiching opposing side surfaces of the main body part 40. Further, the support portion 10 has, for example, a semi-arc-shaped adjustment hole on the side surface side of the main body portion 40. For example, the mounting angle of the main body 40 can be adjusted by fixing the main body 40 to the main body 40 with a fastening member such as a bolt through the adjustment hole.

  Moreover, the support part 10 has an attachment hole on the upper surface, and is fixed to the ceiling via a fastening member such as a bolt through the attachment hole. In addition, the shape of the support part 10 shown in FIG. 1 is an example, and a shape will not be ask | required if it can attach to a ceiling.

  The power supply box 20 accommodates a control board (not shown) that controls the light emitting unit 60. As shown in FIG. 1, the power supply box 20 is, for example, a rectangular parallelepiped housing, and is provided on the back side (Z-axis positive direction side) of the main body 40. Here, the power supply box 20 according to the embodiment prevents invading insects and the like by making it difficult to generate a gap, and this point will be described later with reference to FIG.

  The terminal block cover 30 is a housing that houses the terminal block 31. The terminal block cover 30 has a wiring hole on the side surface, and the power supply wiring 35 is connected to the terminal block 31 from the outside through the wiring hole. For example, the terminal block cover 30 is attached by an enforcer after the lighting device 1 is attached. The terminal block cover 30 may be omitted.

  The terminal block 31 includes a power supply terminal block 31a to which the power supply line 35a of the external wiring 35 is connected, and a signal terminal block 31b to which the signal line 35b is connected. In addition, although FIG. 1 demonstrated the case where the number of the terminal blocks 31 was two, the number of the terminal blocks 31 may be one, or may be three or more.

  The main body 40 has a substantially rectangular parallelepiped shape, and the light emitting unit 60 is provided on the front side (Z-axis negative direction side), and the power supply box 20 is provided on the back side (Z-axis positive direction side).

  The heat radiating part 50 is provided on the back side of the light emitting part 60, and a plurality of heat radiating fins 51 are arranged at intervals. The heat radiating unit 50 releases heat generated by the light emitting element 61 of the light emitting unit 60 to emit light. Thereby, the thermal radiation part 50 can suppress the temperature rise of the illuminating device 1. FIG.

  In the light emitting unit 60, a plurality of light emitting elements 61 are arranged on the light emitting surface on the front side. The light emitting element 61 is, for example, an LED (Light Emitting Diode) chip. The light emitting element 61 emits light according to a control signal from a control board built in the power supply box 20.

  The translucent cover 70 is provided on the front side of the light emitting unit 60 so as to cover the light emitting surface of the light emitting unit 60. The translucent cover 70 is, for example, glass or resin, and transmits light emitted from the light emitting element 61. The translucent cover 70 is provided with a plurality of fixing holes. By passing a fixing member such as a screw through the fixing holes, the light emitting unit 60 is fixed to the main body unit 40 so as to be pressed to the back side. .

  Here, in the power supply box 20 described above, the rectangular back surface and the side surfaces extending from the respective sides of the back surface are formed of a single metal plate. It is a common practice to reduce the thickness.

  However, if the metal plate is thinned, the rigidity of the metal plate itself is weakened. If the adjacent side surfaces are made to have a butted shape, a gap is likely to be generated between the adjacent side surfaces. For this reason, insects, dust and the like easily enter from the generated gap, and there is a risk of damaging the circuit of the built-in control board.

  Therefore, in the power supply box 20 according to the embodiment, the shape of the metal plate is set to a shape that hardly causes a gap between the side surfaces. Hereinafter, the power supply box 20 according to the embodiment will be described in detail.

  FIG. 2 is a perspective view of the power supply box 20 according to the embodiment. In FIG. 2, the figure which looked at the power supply box 20 from diagonally upward direction is shown typically.

  As shown in FIG. 2, the power supply box 20 is a substantially rectangular parallelepiped housing, for example, and is formed by a rectangular back surface 21 and side surfaces 22 extending from each side of the back surface 21. The power supply box 20 is formed of a single metal plate such as aluminum or steel, which will be described later with reference to FIG.

  The back surface 21 is, for example, a substantially rectangular shape having a long side on the support portion 10 side shown in FIG. In addition, the back surface 21 is not limited to a substantially rectangular shape having a long side on the support portion 10 side, and may be a substantially rectangular shape having a short side on the support portion 10 side. Moreover, the shape of the back surface 21 is not limited to a rectangle, and may be a square.

  As shown in FIG. 2, the side surface 22 includes a side surface 221 extending from the long side of the back surface 21 and a side surface 222 extending from the short side of the back surface 21. Further, the side surface 221 has a leg portion 23 having a shape in which the tip side is bent outward. Specifically, the leg portion 23 is provided on the distal end side of the opposing side surface 221 on the support portion 10 side illustrated in FIG. 1 among the two sets of opposing side surfaces 221 and 222.

  Further, as shown in FIG. 2, the leg portion 23 is formed over the entire front end side of the side surface 221. The leg portion 23 is not limited to the case where it is formed over the entire front end side of the side surface 221, but may be partially formed on the front end side of the side surface 221, for example, around the fixing member 26.

  The leg portion 23 is preferably provided on the side surface 221 side that presses the side surface 222 from the outside, but is not limited thereto, and may be provided on the side surface 222 side that is pressed by the side surface 221. It is good also as providing in all the side surfaces 221,222.

  As shown in FIG. 2, the leg portion 23 is fixed to the back side of the main body portion 40. For example, the leg portion 23 is provided with a fixing hole, and is fixed to the back side of the main body portion 40 by passing a fixing member 26 such as a screw through the fixing hole. Thereby, it is possible to prevent the side surface 221 from being opened due to an impact or the like.

  Note that the fixing between the power supply box 20 and the main body 40 is not limited to the fixing member 26 such as a screw. For example, the power box 20 and the main body 40 may be fixed to the main body 40 by applying an adhesive to the back surface of the leg 23.

  As shown in FIG. 2, the power supply box 20 makes it difficult to generate a gap between the side surfaces 221 and 222 by covering one end surface of the adjacent side surfaces 221 and 222 with the other plate surface. This point will be described in more detail with reference to FIG.

  FIG. 3 is an end view of the power supply box 20 according to the embodiment. FIG. 3 schematically shows an end view taken along line AA in FIG. In FIG. 3, the control board and the like built in the power supply box 20 are not shown for the sake of simplicity.

  As shown in FIG. 3, in the power supply box 20, the end surface 222 t of the opposing side surface 222 is covered with the plate surface 221 s of the other opposing side surface 221. Specifically, in the power supply box 20, the end portion of the plate surface 221 s inside the side surface 221 is in contact with the entire end surface 222 t of the side surface 222. That is, the power supply box 20 has a shape in which the opposing side surface 221 sandwiches the other opposing side surface 222.

  By setting it as such an insertion shape, compared with the case where side surfaces are faced | matched, the clearance gap between the side surfaces 221 and 222 can be made hard to produce. Moreover, since the rigidity of the power supply box 20 becomes high by setting it as this shape, the side surfaces 221 and 222 become difficult to deform | transform. Therefore, it is possible to prevent the gap between the side surfaces 221 and 222 from expanding.

  The power supply box 20 is not limited to the case where the four end surfaces 222t are covered with the plate surface 221s, and at least one end surface 222t of the four end surfaces 222t may be covered with the plate surface 221s.

  In the example shown in FIG. 3, the power supply box 20 is in contact with the end surface 222 t and the plate surface 221 s, but may not be strictly in contact. That is, the space between the end surface 222t and the plate surface 221s may be enough to prevent insects and dust from entering.

  Next, a developed view of the power supply box 20 according to the embodiment will be described with reference to FIG. FIG. 4 is a development view of the power supply box 20 according to the embodiment. In FIG. 4, mountain folds are indicated by equally-spaced broken lines, and valley folds are indicated by one-point broken lines. Note that FIG. 4 corresponds to the diagram seen from the positive direction of the Z-axis shown in FIG.

  As shown in FIG. 4, the power supply box 20 includes a back surface 21 and four side surfaces 221 and 222 extending from each side of the back surface 21, for example, from a single metal plate such as aluminum or steel. The thickness of the metal plate is preferably in the range of 1.2 mm to 2.5 mm, for example.

  Further, a leg portion 23 is formed on the distal end side of the two side surfaces 221 extending from the long side of the back surface 21. The leg portion 23 is provided with, for example, a round hole-shaped fixing hole 25. Accordingly, for example, the fixing member 26 such as a screw is passed through the fixing hole 25 and is fixed to the main body 40, thereby preventing the side surface 221 from being opened to the outside.

  The shape of the fixing hole 25 is not limited to a round hole shape, and may be, for example, a long hole shape. This point will be described later with reference to FIG.

  The leg portion 23 is formed of a single metal plate together with the back surface 21 and the side surface 22, but is not limited thereto. For example, the leg portion 23 is a metal plate. You may form with another member.

  Further, as shown in FIG. 4, the side surface 221 has a protruding portion 24 that protrudes with a predetermined width W toward the adjacent side surface 222. Of the regions of the protrusions 24, the region 24 a (shaded region) is a region that covers the end surface 222 t of the side surface 222.

  That is, in the protrusion 24, each of the four regions 24 a covers each of the four end surfaces 222 t of the side surface 222. Accordingly, it is possible to make it difficult for a gap to be generated between the side surfaces 221 and 222.

  When assembling the power supply box 20, the two side surfaces 221 are bent so that the region 24 a covers the end surface 222 t of the side surface 222 with the two side surfaces 222 bent vertically. Thereafter, the power supply box 20 is completed by bending the leg portion 23.

  When assembling the power supply box 20, the leg portion 23 is bent after the side surfaces 221 and 222 are bent. However, the leg portion 23 may be bent before the side surfaces 221 and 222 are bent.

  The width W of the protrusion 24 is preferably the same as the thickness of the end surface 222t of the side surface 222, that is, the thickness of the metal plate, but may be shorter or longer than the thickness of the end surface 222t.

  For example, when the width W of the protrusion 24 is longer than the thickness of the end face 222t, the protrusion 24 protruding from the end face 222t is bent along the side face 222 when the power supply box 20 is assembled. Thereby, it can prevent that the side surface 222 is open | released outside by an impact etc. because the side surface 222 is caught in the site | part which the protrusion part 24 protruded.

  In FIG. 4, the protrusions 24 are provided at both ends of the side surface 221, but the arrangement of the protrusions 24 is not limited to this. Next, another example of the arrangement of the protrusions 24 will be described with reference to FIGS. 5 and 6.

(Modification)
5 and 6 are development views showing modified examples (No. 1 and No. 2) of the power supply box 20 according to the embodiment. As shown in FIG. 5, the four protrusions 241, 242, 243, and 244 are arranged by being rotated by 90 ° around the rotation center. For example, as shown in FIG. 5, the protrusions 241, 242, 243, and 244 are provided at one end of each of the side surfaces 222a, 221a, 222b, and 221b.

  Thus, the protruding portion 241 covers the end surface 221bt of the side surface 221b, the protruding portion 242 covers the side surface 222at of the side surface 222a, the protruding portion 243 covers the end surface 221at of the side surface 221a, and the protruding portion 244 is formed of the side surface 222b. The end surface 222bt is covered.

  Thus, in the power supply box 20 of the modified example (part 1), by providing the projecting portion 24 in a so-called windmill shape, any one of the end surfaces of the side surfaces 221 and 222 is provided in all four adjacent side surfaces of the power supply box 20. Can be covered with the other plate surface.

  When assembling the power supply box 20 of the modified example (No. 1) shown in FIG. 5, first, any one of the four side surfaces 221a, 221b, 222a, and 222b (for example, the side surface 221a) is bent.

  Subsequently, after bending the side surface 222b adjacent to the side of the bent side surface 221a opposite to the protruding portion 24, the side surface 221b and the side surface 222a are bent in this order, whereby the power supply box 20 according to the modified example (part 1). Is completed.

  Moreover, in FIG. 5, the shape of the fixing hole 25 is shown by a long hole shape. Specifically, the fixing hole 25 has a long hole shape that is in the longitudinal direction in the direction of the back surface 21 (X-axis direction). Thereby, when fixing the power supply box 20 to the main body 40, the plate surface 221s of the side surface 221 and the end surface 222t of the side surface 222 can be adjusted and adjusted so as to be in close contact with each other.

  Further, for example, as shown in FIG. 6, the projecting portions 241, 242, 243, and 244 are provided on one end of each of the opposing side surfaces 221 a and 221 b and one of the other side surfaces 222 a and 222 b. It may be provided at both ends.

  Thus, the protruding portion 241 covers the end surface 222at1 of the side surface 222a, the protruding portion 242 covers the side surface 222at2 of the side surface 222a, the protruding portion 243 covers the end surface 221at of the side surface 221a, and the protruding portion 244 is formed on the side surface 221b. The end surface 221bt is covered.

  That is, also in the power supply box 20 of the modified example (No. 2), any one end surface of the side surfaces 221 and 222 can be covered with the other plate surface in all four adjacent side surfaces of the power supply box 20.

  Moreover, when assembling the power supply box 20 of a modification (the 2), the side surface 222a in which the protrusion part 24 is not provided among the four side surfaces 221a, 221b, 222a, 222b is bent first.

  Subsequently, after bending the side surface 221a, 221b adjacent to the side surface 222a that is bent, the power source box 20 according to the modified example (part 2) is completed by bending the side surface 222b provided with the protruding portions 24 at both ends. To do.

  In the embodiment and the modification described above, the case where the end surface 222t of the side surface 22 is covered with the plate surface 221s has been described, but another member may be disposed between the adjacent side surfaces 22. For example, an embedded member such as a resin may be embedded in a portion where the end surface 222t and the plate surface 221s overlap, or another member such as a cover may be covered in a portion where the side surface 22 is adjacent.

  In the above-described embodiment, the lighting device 1 includes the power supply box 20 and the main body 40 one by one. However, the present invention is not limited to this. That is, the lighting device 1 may include one power supply box 20 and a plurality of main body sections 40, or may include a plurality of power supply boxes 20 and one main body section 40. In addition, a plurality of light emitting units 60 may be arranged side by side on the main body 40.

  Although the embodiment of the present invention has been described, this embodiment is presented as an example and is not intended to limit the scope of the invention. This embodiment can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. This embodiment and its modifications are included in the scope of the present invention and the gist thereof, and are also included in the invention described in the claims and the equivalent scope thereof.

DESCRIPTION OF SYMBOLS 1 Illuminating device 10 Support part 20 Power supply box 21 Back surface 22,221,222 Side surface 221s Plate surface 222t End surface 23 Leg part 24 Protrusion part 25 Fixing hole 26 Fixing member 30 Terminal block cover 40 Main body part 50 Heat radiation part 51 Radiation fin 60 Light emitting part 70 Translucent cover

Claims (4)

A light emitting part including a plurality of light emitting elements;
A main body provided with the light emitting part on the front side;
A power supply box provided on the back side of the main body;
Comprising
The power box is
A rectangular back surface and side surfaces extending from each side of the back surface are formed of one metal plate, and one end surface of the adjacent side surfaces is covered with the other plate surface. Lighting device. The power box is
The lighting device according to claim 1, wherein the end surfaces of the opposing side surfaces are respectively covered with the plate surfaces of the other opposing side surfaces. The power box is
The lighting device according to claim 1, further comprising a leg portion having a shape in which a distal end side of the side surface is bent outward, and the leg portion is fixed to a back side of the main body portion. The power box is
The lighting device according to claim 3, wherein the leg portion is formed over the entire front end side of the side surface.

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