JP2017152263A - Light source unit and light fitting - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a light source unit which inhibits occurrence of dew condensation, and to provide a light fitting.SOLUTION: A light source unit 2 includes: a light source module 4; a power supply device 5; an attachment member 3; a cover 6; and a resin lump 8. The attachment member 3 is formed into an elongated shape and has a first surface 311 and a second surface 312 that is an opposite surface of the first surface 311. The light source module 4 is attached to the first surface 311. The power supply device 5 is attached to the second surface 312. The resin lamp 8 is formed by a resin material having an insulation property and is arranged so as to face the second surface 312 of the attachment member 3. A light fitting 1 includes the light source unit 2 and a device body 9 to which the light source unit 2 is attached.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a light source unit and a lighting fixture. More specifically, the present invention relates to a long light source unit and a lighting fixture including the light source unit.

  As a conventional example, the illumination device described in Patent Document 1 is illustrated. The illumination device described in Patent Literature 1 includes a light source module on which a plurality of white LEDs (Light Emitting Diodes) are mounted, a dome-shaped light-transmitting portion that covers the light source module, and heat dissipation for dissipating heat generated by the light source module. And a drive circuit unit for driving the light source module. The lighting device further includes a cylindrical base part connected to an external power source, and an insulating part interposed between the base part and the heat dissipation part.

  The heat radiating portion includes a disk-shaped heat radiating plate to which the light source module is screwed at the central portion of one surface. A fixed cylinder for fixing the heat radiating fins protrudes from the center of the other surface of the heat radiating plate. A cavity is formed inside the fixed cylinder as a housing portion that houses a part of the drive circuit component of the drive circuit portion.

  The light transmissive portion covers and protects the light source module and transmits light from the light source module. The translucent part is fixed to the heat radiating plate in a state where the edge is in contact with the flange of the heat radiating plate.

  The insulating portion includes a heat dissipation portion holding cylinder that holds the heat dissipation portion. The insulating part is fixed to the heat radiating part in a state where the heat radiating part holding cylinder is inserted inside the fixed cylinder of the heat radiating part.

  A sealed cavity (accommodating portion) for accommodating the drive circuit portion is formed by the heat radiating portion and the insulating portion. Accordingly, since the dust and dirt do not enter the cavity from the outside, the lighting device can prevent ignition or failure caused by the dust or dust coming into contact with the drive circuit unit.

JP 2009-4130 A

  By the way, in the illuminating device described in Patent Document 1, the drive circuit portion on which the drive circuit components are mounted is accommodated in a sealed space. In this case, once the housing portion is sealed, the air in and out of the housing portion cannot be entered. That is, when the housing is sealed in a high humidity environment, condensation tends to occur in the housing when the temperature at the installation location is low.

  This invention is made | formed in view of the said reason, and it aims at providing the light source unit and lighting fixture which can suppress generation | occurrence | production of dew condensation.

  The light source unit of the present invention includes a light source, a power supply device, an attachment member, a cover, and a resin lump. The power supply device supplies lighting power to the light source. The attachment member is formed in a long plate shape, and has a first surface and a second surface that is a surface opposite to the first surface. The light source is attached to the first surface. The power supply device is attached to the second surface. The resin lump is formed of an insulating resin material and is disposed so as to face the second surface of the mounting member. The cover includes a bottom wall formed in a long shape, and a pair of side walls protruding in one direction from both ends in the short direction of the bottom wall and formed in a long plate shape. The cover is arranged such that the longitudinal direction of the bottom wall is the same as the longitudinal direction of the mounting member, and the bottom wall faces the light source, the light source, the power supply device, the mounting member, And the said resin lump is accommodated, It is characterized by the above-mentioned.

  The lighting fixture of this invention is equipped with the above-mentioned light source unit and the fixture main body to which the said light source unit is attached, It is characterized by the above-mentioned.

  The light source unit and the lighting fixture of the present invention have an effect that the occurrence of condensation can be suppressed.

It is a perspective view which shows the light source unit and lighting fixture which concern on embodiment of this invention. It is a disassembled perspective view which shows a light source unit and a lighting fixture same as the above. It is sectional drawing which shows a light source unit same as the above. It is sectional drawing which shows the light source unit of another example same as the above. It is sectional drawing which shows the light source unit of the modification 1 same as the above. It is sectional drawing which shows the light source unit of the modification 2 same as the above.

  Hereinafter, a light source unit and a lighting fixture according to an embodiment of the present invention will be described in detail with reference to the drawings.

  As shown in FIGS. 1 to 3, the light source unit 2 and the lighting fixture 1 according to the present embodiment use a plurality of solid light emitting elements, for example, a plurality of LEDs (Light Emitting Diodes) 42, It is a lighting fixture. Note that the configuration described below is merely an example of the present invention, and the present invention is not limited to the following embodiment, and the technical idea according to the present invention is not deviated from this embodiment. Various changes can be made in accordance with the design or the like as long as they are not.

  The lighting fixture 1 of this embodiment is provided with the light source unit 2 and the fixture main body 9 which accommodates the light source unit 2 as shown in FIG.

  As shown in FIG. 2, the light source unit 2 includes a mounting member 3, a light source module (light source) 4, a power supply device 5, a cover 6, an end cover 7, and a resin lump 8.

  The attachment member 3 is formed in a U shape when viewed from the longitudinal direction by bending a long sheet metal. The attachment member 3 includes an attachment plate 31 and a pair of side plates 32. The mounting plate 31 has a first surface 311 and a second surface 312 which is a surface opposite to the first surface 311. The pair of side plates 32 are formed so as to extend from both ends of the second surface 312 in the short direction. One end in the longitudinal direction of the attachment member 3 is a first end 331 and the end opposite to the first end is a second end 332.

  The light source module 4 includes a printed wiring board 41 formed in a long plate shape and a plurality of LEDs 42 mounted on the mounting surface 411 of the printed wiring board 41 along the longitudinal direction. A connector to which lighting power is supplied from the power supply device 5 is mounted near one end of the printed wiring board 41 via an electric wire 53 (see FIG. 3). The light source module 4 is, for example, screwed to the attachment member 3 such that the attachment surface 412 opposite to the mounting surface 411 of the printed wiring board 41 faces the first surface 311 of the attachment member 3. ,It is attached.

  The power supply device 5 includes a power supply circuit 51 and a case 52 that houses the power supply circuit 51. The power supply circuit 51 includes a printed wiring board 511 formed in a long rectangular plate shape and a plurality of circuit components 512 mounted on the printed wiring board 511. The power supply circuit 51 is electrically connected to the power supply cable 11. Power from the outside is supplied to the power circuit 51 via the power cable 11. The power supply circuit 51 is configured to convert the power into direct-current lighting power for lighting the plurality of LEDs 42, and supply the lighting power to the plurality of LEDs 42 via the electric wires 53. The power supply circuit 51 includes at least circuit components 512 (for example, transistors, diodes, capacitors) for generating lighting power for the plurality of LEDs 42. The case 52 is formed in a long rectangular box shape that is partially open. The power supply circuit 51 is accommodated in the case 52 so that the plurality of circuit components 512 are exposed through the opening.

  As shown in FIG. 3, the power supply device 5 is configured so that the opening of the case 52 faces the second surface 312 of the mounting member 3 and the longitudinal direction is the same as the longitudinal direction of the mounting member 3. It is attached to the attachment member 3 using a screw or the like. The power supply device 5 is attached to the attachment member 3 so that one end in the longitudinal direction of the case 52 is disposed near the first end 331. Further, the power supply device 5 is disposed between the longitudinal center A0 of the mounting member 3 and the first end 331 (see FIG. 3). In other words, the length L1 between the center A0 in the longitudinal direction of the light source unit 2 and the point A1 indicating one end of the power supply device 5 is compared with the distance L2 between the center A0 and the point A2 indicating the other end of the power supply device 5. The power supply device 5 is attached to the attachment member 3 so as to be long. That is, the power supply device 5 is attached to the attachment member 3 so as to be biased in one direction (on the first end 331 side) from the longitudinal center A0 of the light source unit 2.

  The power cable 11 is led out from one end side of the case 52. Further, the electric wire 53 is led out from one end side of the case 52 and is routed from the second surface 312 side to the first surface 311 side through a wire through hole formed in the vicinity of the first end 331 of the mounting plate 31. .

  As shown in FIG. 2, the cover 6 includes a bottom wall 61, a pair of side walls 62, and a top plate 63, and is formed in a long semi-elliptical cylindrical shape. The bottom wall 61 is formed in a long shape with a synthetic resin material having translucency, for example, acrylic resin, and has a convex shape so that the protruding amount increases in one direction from both ends in the short side direction to the center. Is formed. Each of the pair of side walls 62 is formed in a long rectangular plate shape by, for example, acrylic resin. The bottom wall 61 is integrally formed with the bottom wall 61 so as to face each other in the opposite direction from one end in the short direction. The top plate 63 is formed in a long rectangular plate shape, and is formed so that both ends in the short direction are along one side in the longitudinal direction of the pair of side walls 62 and face the bottom wall 61. Yes.

  As shown in FIGS. 2 and 3, each of the pair of end covers 7 is formed in a semi-elliptical plate shape with a translucent material, for example, acrylic resin, and is attached to both ends of the cover 6 in the longitudinal direction. It is done. One of the pair of end covers 7 is provided with a line through hole through which the power cable 11 passes.

  As shown in FIG. 3, the space surrounded by the cover 6 and the end cover 7 accommodates the attachment member 3 to which the light source module 4 and the power supply device 5 are attached. The mounting member 3 is accommodated in the space such that the plurality of LEDs 42 face the bottom wall 61 (see FIG. 3). Of the space surrounded by the cover 6 and the end cover 7, the space on the first surface 311 side of the attachment member 3 is defined as a first space 601. A space on the second surface 312 side of the attachment member 3 is a second space 602.

  By the way, the light source unit 2 forms a sealed structure with the cover 6 and the end cover 7. It is difficult for the air in the space sealed by the cover 6 and the end cover 7 to flow out. It is also difficult for outside air to enter the space sealed by the cover 6 and the end cover 7.

  The resin mass 8 is formed in a rectangular parallelepiped by a material having antistatic properties, for example, a foamed polyethylene resin material. The antistatic property has conductivity that can suppress charging, and has a surface resistivity of 10 9 Ω / sq. To 10 12 Ω / sq. It is preferable to have the following characteristics. The resin mass 8 is disposed on the second surface 312 of the mounting member 3 so that the longitudinal direction is the same as the longitudinal direction of the mounting member 3 and adjacent to the power supply device 5. In other words, one resin mass 8 is disposed between the power supply device 5 and the second end 332.

  Here, how to assemble the light source unit 2 will be described. In addition, the order and method of the assembly method demonstrated below are examples, Comprising: It is not limited to this.

  First, the light source module 4 is attached to the first surface 311 of the attachment member 3. Next, the power supply device 5 is attached to the second surface 312 of the attachment member 3. At this time, the electric wire 53 is passed through the wire through hole of the mounting plate 31 of the mounting member 3 and connected to the connector of the light source module 4. The attachment member 3 is inserted into the cover 6 from one end of the cover 6. At this time, the attachment member 3 is accommodated in the cover 6 so that the first end 331 of the attachment member 3 is disposed on one end side of the cover 6. The end cover 7 provided with a line through hole is attached to one end of the cover 6. The resin mass 8 is inserted from the other end of the cover 6. Finally, the end cover 7 that is not provided with the line through hole is attached to the other end of the cover 6.

  At this time, the electric wire 53 is routed from the second space 602 to the first space 601 through the wire through hole of the mounting plate 31. The power cable 11 is led out from the second space 602 to the outside of the cover through the wire hole of the end cover 7. Thus, since the electric wire 53 and the power cable 11 do not contact the resin lump 8, it is possible to prevent disconnection of the connector or disconnection due to the resin lump 8.

  In the light source unit 2 and the lighting fixture 1 of this embodiment, most of the second space 602 is occupied by the power supply device 5 and one resin lump 8. By disposing one resin lump 8 inside the cover 6, the air trapped in the cover 6 is reduced. The air contains water vapor. Therefore, the amount of water vapor trapped in the cover 6 is reduced. Therefore, even if the ambient temperature of the light source unit 2 and the luminaire 1 is lower than that during production, the light source unit 2 and the luminaire 1 can suppress dew condensation that occurs in the cover 6.

  In addition, since the resin lump 8 is formed of an antistatic material, when the resin lump 8 is inserted into the cover 6, the light source unit 2 and the lighting fixture 1 are frictioned between the resin lump 8 and the cover 6. Static electricity generated in the can be suppressed. If static electricity can be suppressed, the light source unit 2 and the lighting fixture 1 can suppress problems due to static electricity.

  Further, in the light source unit 2 and the luminaire 1 of the present embodiment, the power supply device 5 is attached to the attachment member 3 so as to be biased to one side from the longitudinal center A0 of the light source unit 2 so that one resin lump 8 is covered with the cover 6. The second space 602 is disposed. On the other hand, when the power supply device 5 is attached to the attachment member 3 in the vicinity of the center A0 of the light source unit 2, two resin lumps are required, and the number of construction steps and the number of parts are increased as compared with one case.

  The resin lump 8 may be formed of a material having electrostatic diffusibility. In this case, the electrostatic diffusibility has a conductivity that can dissipate the charge gently, and has a surface resistivity of 10 5 Ω / sq. To 10 9 Ω / sq. It is preferable to have characteristics of a degree. Moreover, the resin lump 8 may be formed of not only a foamed polyethylene resin material but also, for example, a urethane resin or a foamed polypropylene resin. Furthermore, the resin lump 8 does not need to be a molded product, and a liquid foamed resin may be filled in the cover 6 and cured.

  Further, the resin mass 8 may be formed of two or more different materials. For example, as shown in FIG. 4, the resin mass 8 may be formed of a resin 8a having antistatic properties and a resin 8b having insulating properties. The resin 8b has an insulation characteristic (surface resistivity 10 13 Ω / sq. Or higher) having a higher surface resistivity than the resin 8a. The resin lump 8 is formed so that the resin 8b covers the resin 8b. When the resin lump 8 is formed in this way, the amount of the resin 8a having antistatic properties can be reduced, and the cost can be reduced.

  The fixture body 9 of the lighting fixture 1 of the present embodiment is configured to be attached to a ceiling material, and is formed into a flat box shape that is long and has one surface opened by bending a sheet metal. As shown in FIG. 1, the light source unit 2 is attached to the instrument main body 9 so that the top plate 63 faces the bottom surface (attachment plate) 91 of the instrument main body 9 and the bottom wall 61 of the cover 6 is exposed.

  In addition, the instrument main body 9 is not limited to a box shape, and may be formed in a plate shape. Further, the cover 6 may not have the top plate 63. However, in this case, the light source unit 2 is attached to the instrument main body 9 so that the instrument main body 9 seals the first space 601 and the second space 602 of the attachment member 3.

  The light source module 4 is not limited to the light source module using the plurality of LEDs 42 as in the present embodiment. The light source module may be a light source module using a fluorescent lamp or the like instead of the plurality of LEDs 42. Moreover, the instrument main body 9 may be attached to places other than the ceiling material, for example, walls.

  Next, Modification 1 of the light source unit 2 of the present embodiment will be described with reference to FIG. As shown in FIG. 5, the power cable 11 may be led out from the side surface of the case 52 facing the resin mass 8. In this case, the power cable 11 supplied from the external power source is inserted through the end cover 7 and is routed in the second space 602 along the side surface of the case 52.

  Next, Modification 2 of the light source unit 2 of the present embodiment will be described with reference to FIG. As shown in FIG. 6, the electric wire 53 may be led out from the side surface of the case 52 facing the resin mass 8. In this case, the electric wire 53 is routed in the second space 602 along the side surface of the case 52, and is routed to the first space 601 through the wire through hole of the mounting plate 31.

  The light source unit 2 of the present embodiment includes a light source module (light source) 4, a power supply device 5, an attachment member 3, a cover 6, and a resin lump 8. The power supply device 5 supplies lighting power to the light source module 4. The attachment member 3 is formed in a long plate shape, and has a first surface 311 and a second surface 312 which is a surface opposite to the first surface 311. The light source module 4 is attached to the first surface 311. The power supply device 5 is attached to the second surface 312. The resin mass 8 is formed of an insulating resin material and is disposed so as to face the second surface 312 of the mounting member 3. The cover 6 includes a bottom wall 61 that is formed in a long shape, and a pair of side walls 62 that protrude in one direction from both ends in the short direction of the bottom wall 61 and are formed in a long plate shape. The light source module 4, the power supply device 5, the mounting member 3, and the resin so that the longitudinal direction of the bottom wall 61 is the same as the longitudinal direction of the mounting member 3 and the bottom wall 61 faces the light source module 4. The mass 8 is accommodated.

  Since the light source unit 2 of the present embodiment is configured as described above, the occurrence of condensation can be suppressed.

  In the light source unit 2 of the present embodiment, the resin lump 8 is preferably formed of a foamed resin material.

  If the light source unit 2 of this embodiment is comprised as mentioned above, the light source unit 2 can be reduced in weight and attachment work will become easy.

  The light source unit 2 of the present embodiment preferably further includes a pair of end covers 7. The cover 6 preferably further includes a top plate 63. It is preferable that the top plate 63 is formed in a long cylindrical shape disposed so as to face the bottom wall 61 of the cover 6. The attachment member 3 is preferably accommodated inside the cover 6 so that the second surface 312 of the attachment member 3 faces the top plate 63. The resin mass 8 is preferably disposed between the second surface 312 of the mounting member 3 and the top plate 63. Each of the pair of end covers 7 is preferably attached to both ends of the cover 6 in the longitudinal direction.

  If the light source unit 2 of this embodiment is comprised as mentioned above, the light source unit 2 can be made into a sealing structure.

  In the light source unit 2 of the present embodiment, it is preferable that the power supply device 5 is disposed to be deviated toward one end side in the longitudinal direction of the mounting member 3 with respect to the center in the longitudinal direction of the mounting member 3. It is preferable that one resin lump 8 is disposed on the other end side in the longitudinal direction of the mounting member 3.

  When the light source unit 2 of the present embodiment is configured as described above, the air that exists in the second space 602 (the space on the second surface 312 side) can be obtained simply by disposing one resin mass 8 inside the cover 6. The amount of can be reduced. Therefore, the light source unit 2 is configured with a small number of parts, and the number of construction steps can be reduced.

  In the light source unit 2 of the present embodiment, the power supply device 5 preferably supplies lighting power to the light source module 4 via the electric wire 53. It is preferable that the electric wire 53 is led out from one end side of the power supply device 5 in the longitudinal direction of the mounting member 3. It is preferable that the other end side of the power supply device 5 is opposed to the resin lump 8 in the longitudinal direction of the mounting member 3.

  When the light source unit 2 of the present embodiment is configured as described above, disconnection of the wiring connector due to the resin lump 8 and disconnection can be suppressed.

  In the light source unit 2 of the present embodiment, the resin mass 8 is preferably formed of a material having antistatic properties.

  If the light source unit 2 of this embodiment is comprised as mentioned above, the malfunction of LED42 by static electricity etc. can be suppressed.

  In the light source unit 2 of the present embodiment, the resin mass 8 is preferably formed of a material having electrostatic diffusibility.

  If the light source unit 2 of this embodiment is comprised as mentioned above, the malfunction of LED42 by static electricity etc. can be suppressed.

  In the light source unit 2 of the present embodiment, the bottom wall 61 of the cover 6 is preferably configured to diffuse light.

  If the light source unit 2 of this embodiment is comprised as mentioned above, the light from the light source module 4 will be irradiated efficiently.

  The lighting fixture 1 of this embodiment is provided with the light source unit 2 and the fixture main body 9 to which the light source unit 2 is attached.

  Since the lighting fixture 1 of this embodiment is comprised as mentioned above, generation | occurrence | production of dew condensation can be suppressed.

DESCRIPTION OF SYMBOLS 1 Lighting fixture 2 Light source unit 3 Mounting member 311 1st surface 312 2nd surface 331 1st end 332 2nd end 4 Light source module (light source)
5 Power supply device 52 Case 53 Electric wire 6 Cover 61 Bottom wall 62 Side wall 63 Top plate 7 End cover 8 Resin lump 9 Instrument body

Claims (9)

A light source, a power supply device, a mounting member, a cover, and a resin lump,
The power supply device supplies lighting power to the light source,
The attachment member is formed in a long plate shape, and has a first surface and a second surface which is a surface opposite to the first surface,
The light source is attached to the first surface,
The power supply device is attached to the second surface,
The resin lump is formed of an insulating resin material and is disposed so as to face the second surface of the mounting member,
The cover includes a bottom wall formed in a long shape, and a pair of side walls protruding in one direction from both ends in a short direction of the bottom wall and formed in a long plate shape, the longitudinal direction of the bottom wall The light source, the power supply device, the mounting member, and the resin mass are accommodated so that the length of the mounting member is the same as the longitudinal direction of the mounting member and the bottom wall faces the light source. A light source unit characterized by The light source unit according to claim 1, wherein the resin lump is formed of a foamed resin material. A pair of end covers;
The cover further includes a top plate, and is formed in a long cylindrical shape arranged so that the top plate faces the bottom wall of the cover,
The mounting member is accommodated in the cover such that the second surface of the mounting member faces the top plate,
The resin mass is disposed between the second surface of the mounting member and the top plate,
The light source unit according to claim 1, wherein each of the pair of end covers is attached to both ends of the cover in the longitudinal direction. The power supply device is arranged to be biased toward one end side in the longitudinal direction of the mounting member with respect to the longitudinal center of the mounting member,
The said light source unit as described in any one of Claims 1-3 by which the one said resin lump is arrange | positioned at the other end side of the longitudinal direction of the said attachment member. The power supply device supplies the lighting power to the light source via an electric wire,
In the longitudinal direction of the mounting member,
The light source unit according to claim 4, wherein an electric wire is led out from one end side of the power supply device, and the other end side of the power supply device faces the resin block. The light source unit according to claim 1, wherein the resin block is formed of a material having antistatic properties. The light source unit according to claim 1, wherein the resin block is formed of a material having electrostatic diffusibility. The light source unit according to any one of claims 1 to 7, wherein the bottom wall of the cover is configured to diffuse light. An illumination fixture comprising: the light source unit according to any one of claims 1 to 8; and a fixture main body to which the light source unit is attached.

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