JP6932011B2 - Light source unit and lighting equipment - Google Patents

Description

The present invention relates to a light source unit and a luminaire, and more particularly to a mounting structure of the light source unit.

The technique of attaching the light source unit to the instrument body is known. For example, in Patent Document 1, it is proposed that the light source unit is connected to the light source unit by providing the light source unit with a mounting portion on the device side that exerts an elastic force in a direction of pulling the device body.

JP-A-2017-10626

In Patent Document 1, when the light source unit is attached to the fixture body, the light source module of the light source unit is covered with the fixture body or a cover attached to the fixture body. If the light source unit that dissipates heat is covered with the fixture body or a cover, the effect of heat dissipation from the light source module to the outside is reduced.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a light source unit and a lighting fixture having an improved heat dissipation effect from the light source module to the outside.

The light source unit according to the present invention is a light source unit attached to the main body, and includes a heat sink portion attached to the main body and a light source module attached to the heat sink portion, and the heat sink portion is attached to the main body. a contact portion that contacts the wall surface of the body when the extension portion forming a part of the outer shell together with the abutment portion provided apart from the contact portion, is formed, the extended portion Is formed in an oblique direction with respect to the contact portion so that the distance from the contact portion increases as the distance from the contact portion increases .

According to the light source unit according to the present invention, a part of the outer shell is formed by the contact portion and the extension portion, and the contact area between the outer shell and the outside air is large, so that the heat dissipation effect by radiation to the outside is enhanced. Can be done.

It is a perspective view which shows the appearance of the lighting fixture which concerns on embodiment. It is a perspective view which looked at the appearance of the luminaire which concerns on embodiment from the side to which it is attached. It is a side view of the lighting fixture which concerns on embodiment. It is a schematic diagram which shows the end face of the luminaire which concerns on embodiment. It is a schematic diagram which shows the end face of a main body case. It is a schematic diagram which shows the end face in the state which removed the main body case of FIG. 5 from the lighting fixture of FIG. It is a schematic diagram which shows the inside of the instrument body. It is a schematic diagram which shows the cross section of the lighting fixture which concerns on embodiment. It is a schematic diagram which shows the cross section in the state which removed the main body case from the lighting fixture of FIG. It is a schematic diagram which shows the cross section of a light source unit. It is a partially enlarged view explaining the outer shell of a luminaire.

Embodiment FIG. 1 is a perspective view showing the appearance of the lighting fixture 1000 according to the embodiment. As shown in FIG. 1, the lighting fixture 1000 is a longitudinal lighting device including a fixture main body 100 and a light source unit 200 detachably attached to the fixture main body 100. The luminaire 1000 is attached to, for example, a mounted portion provided on a ceiling or the like.

FIG. 2 is a perspective view of the appearance of the luminaire 1000 according to the embodiment as viewed from the side to be attached. As shown in FIG. 2, the appliance main body 100 includes a bottomed box-shaped main body case 110 formed by a mounting surface portion 111 facing the mounted portion and wall surface portions 112 formed on the four sides of the mounting surface portion 111. Be prepared. The outer wall of the instrument main body 100 is formed by a wall surface portion 112.

A plurality of bolt mounting holes 115 and a plurality of power line insertion holes 114 are formed on the mounting surface portion 111 of the main body case 110. The bolt mounting hole 115 is provided for inserting a bolt and mounting the main body case 110 on the ceiling or the like. The power line insertion hole 114 is provided in the main body case 110 for drawing a power line from the outside.

FIG. 3 is a side view of the lighting fixture 1000 according to the embodiment. FIG. 4 is a schematic view showing an end face of the luminaire 1000 according to the embodiment. FIG. 5 is a schematic view showing an end face of the main body case 110. FIG. 6 is a schematic view showing an end surface of the lighting fixture 1000 of FIG. 4 with the main body case 110 of FIG. 5 removed. As shown in FIGS. 3 to 6, the outer shell of the lighting fixture 1000 is composed of a wall surface portion 112 of the main body case 110 and an outer shell of the light source unit 200. A main cover 230 and an end cover 240 are attached to the light source unit 200, and the main cover 230 and the end cover 240 form an outer shell of the light source unit 200.

The main cover 230 is formed of a translucent member whose cross-sectional shape is, for example, rounded or angular U-shaped. The end cover 240 has substantially the same cross-sectional shape as the main cover 230, and covers the side surface of the light source unit 200 in the lateral direction. A screw hole 242 is formed in the end cover 240, and a screw 241 is inserted.

The main cover 230 and the end cover 240 are manufactured by a method such as extrusion molding using a resin material. The main cover 230 may be entirely formed of a translucent resin material, or may be partially formed of a light-shielding resin material.

FIG. 7 is a schematic view showing the inside of the instrument main body 100. As shown in FIG. 7, the appliance main body 100 includes a holding portion 120 for holding the light source unit 200 and a terminal block 130 inside a main body case 110 formed in a box shape by a mounting surface portion 111 and a wall surface portion 112. , Containing the lighting device 140. Inside the wall surface portion 112, a mounting bracket 150 that is erected in parallel with the wall surface portion 112 is formed. The end portion of the wall surface portion 112 forms an opening 113 on the side of the main body case 110 facing the mounting surface portion 111. A power supply line drawn from the power supply line insertion hole 114 is connected to the terminal block 130. A lighting device 140 is also connected to the terminal block 130. The wall surface portion 112 that constitutes the opening 113 of the instrument main body 100 has a folded end portion, and has a structure that does not easily cause injury even if a finger touches it.

FIG. 8 is a schematic view showing a cross section of the luminaire 1000 according to the embodiment. FIG. 9 is a schematic view showing a cross section of the lighting fixture 1000 of FIG. 8 in a state where the main body case 110 is removed. FIG. 10 is a schematic view showing a cross section of the light source unit 200. As shown in FIGS. 8 to 10, the light source unit 200 is composed of a heat sink portion 210, a light source module 220, a main cover 230, and an end cover 240, and is fitted into the opening 113 of the main body case 110. It has been. The heat sink portion 210 includes extension portions 213 and abutting portions 214 at both ends along the longitudinal direction, and a cover hooking portion 212 in which the extension portion 213 and the abutting portion 214 are formed at both ends in the longitudinal direction. Is continuously formed from.

The light source module 220 has a plurality of LEDs 221 and a substrate 222 on which the plurality of LEDs 221 are mounted, and is attached to the heat sink portion 210 by using, for example, screws, caulking, or an adhesive.

Inclined portions 231a and engaging portions 231b are formed at both ends of the main cover 230 in the longitudinal direction, and both ends are attached to the heat sink portion 210 to cover the light source module 220 with the main cover 230. The inclined portion 231a is formed so as to be inclined inward, and the engaging portion 231b is formed at the tip of the inclined portion 231a toward the inside of the main cover 230. That is, the inclined portion 231a has a shape in which the pair of opposite end portions are inclined in a direction close to each other and in a direction close to the instrument main body 100. Further, the engaging portion 231b has a shape that extends from the tips of the pair of inclined portions 231a and is inclined in a direction close to each other and away from the instrument main body 100.

The heat sink portion 210 has a longitudinal shape like the lighting fixture 1000. A cover hooking portion 212 that engages with the main cover 230, an extension portion 213, and an abutting portion 214 that abuts on the opening 113 of the main body case 110 are formed at both ends of the heat sink portion 210 along the longitudinal direction. Has been done. The heat sink portion 210 is provided to promote heat dissipation of the light source unit 200 that generates heat, and is a member obtained by extruding a metal material such as an aluminum plate, for example. A screw hole 217a is formed in the heat sink portion 210, a screw 241 penetrating the screw hole 242 of the end cover 240 is inserted, and the end cover 240 is fastened to the heat sink portion 210.

The portion of the heat sink portion 210 facing the opening 113 of the instrument main body 100 is the light source mounting portion 211. The light source mounting portion 211 is a square mounting portion on which the light source module 220 is mounted. The light source mounting portion 211 has a light source mounting surface portion 211a on the back surface of the surface facing the fixture main body 100, and a light source module 220 composed of a plurality of LEDs 221 and a substrate 222 on which the LEDs 221 are mounted is mounted. The light source mounting portion 211 receives the heat of the light source module 220 at the light source mounting surface portion 211a and transfers the heat to the entire heat sink portion 210.

The cover hooking portion 212 forms a U-shape that opens toward the end side in the longitudinal direction of the light source mounting portion 211, and engages with and holds the inclined portion 231a and the engaging portion 231b of the main cover 230. The cover hooking portion 212 is composed of a hooking extension portion 212a, a hooking convex portion 212b, and a hooking support piece 212c. The hook extending portion 212a extends in a direction away from both ends of the light source mounting portion 211, and is thermally connected to the light source mounting portion 211. The hook convex portion 212b is formed so as to extend from both ends of the light source mounting portion 211 and stand in a direction away from the light source mounting surface portion 211a, that is, in a direction close to the instrument main body 100. The hook support piece 212c is continuous with the upper end of the hook convex portion 212b and extends in a direction away from each other.

The extension portion 213 is formed in a shape that is continuous from the cover hook portion 212 and obliquely protrudes in a direction away from the instrument main body 100. The tip of the extension portion 213 is close to the tip of the hook extension portion 212a, assists the engagement between the cover hook portion 212 and the main cover 230, and maintains the extension portion 213 in a predetermined position. The extension portion 213 extends in a direction away from the end portion of the hook support piece 212c constituting the cover hook portion 212, and in a direction in which the tip position is close to the horizontal position of the light source mounting portion 211. That is, the extension portion 213 is formed obliquely in a direction away from the instrument main body 100. The tip of the extension portion 213 is close to the main cover 230, and together with the main cover 230, constitutes the outer shell of the light source unit 200.

The contact portion 214 is formed in a shape continuous from the cover hook portion 212 and separated from the extension portion 213. The abutting portion 214 extends from the end of the hooking support piece 212c constituting the cover hooking portion 212 in a direction close to the instrument main body 100, and bends in a direction away from each other at the corner portion 214a, and the contact portion 214 and the light source mounting portion 211. It is parallel. The contact portion 214 comes into contact with the end portion of the wall surface portion 112 forming the opening 113 of the fixture main body 100 in a state where the light source unit 200 is attached to the fixture main body 100. The contact portion 214 prevents the light source unit 200 from entering too much inside the fixture body 100.

Both the extension portion 213 and the contact portion 214 are continuous from the cover hook portion 212 and are thermally connected to the light source mounting portion 211, and the heat of the light source module 220 received by the light source mounting portion 211 is transferred. .. The extension portion 213 and the contact portion 214 have a V-shaped cross section branched from the end portion of the cover hook portion 212, and the distance between the tip portions is larger than the distance between the root portions. The facing surfaces of the extension portion 213 and the contact portion 214 are exposed to the outside, and the heat transferred from the light source mounting portion 211 is radiated to the outside. The angle formed by the facing surfaces of the extension portion 213 and the contact portion 214 may be, for example, 30 °.

A guide portion 215 is formed at the tip portions of the extension portion 213 and the contact portion 214. The guide portion 215 is formed continuously from the corner portion 214a of the contact portion 214 in the direction close to the instrument main body 100. The guide portion 215 is composed of a positioning piece 215a extending in a direction approaching the instrument main body 100 from contact portions 214 located at both ends of the light source mounting portion 211, and a guide piece 215b at the tip of the positioning piece 215a. There is. The guide piece 215b is inclined at the end of the positioning piece 215a in a direction close to the instrument main body 100 and in a direction close to each other. The guide unit 215 guides the light source unit 200 to a predetermined position of the instrument main body 100 by the guide piece 215b, and regulates the lateral displacement of the light source unit 200 by the positioning piece 215a.

Specifically, the guide piece 215b comes into contact with the mounting bracket 150 inside the wall surface portion 112 when the light source unit 200 is brought close to the opening 113 of the instrument body 100, and guides the light source unit 200 to a predetermined position. .. The positioning piece 215a contacts the inner surface of the opening 113 to restrict the lateral movement of the light source unit 200, and keeps the light source unit 200 at a predetermined position of the instrument main body 100.

A protruding piece 216 is erected in the direction of the main body case 110 on the surface of the light source mounting portion 211 on the main body case 110 side, that is, on the back surface of the light source mounting surface portion 211a, and is formed in a rib shape. The protruding piece 216 serves as a reinforcing member that suppresses deformation of the light source mounting portion 211 due to the rib shape, and radiates the heat of the light source module 220 received by the light source mounting surface portion 211a from the surface on the main body case 110 side.

Screw mounting portions 217 are provided at both ends of the heat sink portion 210 in the lateral direction. In the screw mounting portion 217, a screw 241 for fastening the end cover 240 is inserted into the heat sink portion 210, and the end cover 240 is fixed to the heat sink portion 210.

FIG. 11 is a partially enlarged view illustrating the outer shell of the luminaire 1000. As shown in FIG. 11, the lighting fixture 1000 is configured by attaching the heat sink portion 210 of the light source unit 200 to the fixture main body 100. The outer shell of the lighting fixture 1000 is formed by the extension portion 213 and the contact portion 214 of the light source unit 200 together with the wall surface portion 112 of the fixture main body 100, the main cover 230 of the light source unit 200, and the end cover 240. ..

When the light source module 220 of the light source unit 200 generates heat, the heat sink portion 210 receives heat at the light source mounting surface portion 211a, and the heat is transferred to the light source mounting portion 211. The heat is transferred from the light source mounting portion 211 to the projecting piece 216 standing upright, dissipated, and transferred to the cover hooking portions 212 at both ends of the light source mounting portion 211. Then, heat is transferred from the cover hooking portion 212 to the extension portion 213 and the contact portion 214, and heat is dissipated to the outside from the extension portion 213 and the contact portion 214 to cool the light source unit 200.

Since the heat transferred to the projecting piece 216 is dissipated to the closed space between the heat sink portion 210 and the instrument main body 100, the heat of the light source module 220 cannot be sufficiently dissipated. By forming a part of the outer shell by the extension portion 213 and the contact portion 214, the contact area between the outer shell and the outside is increased, the heat dissipation effect is improved, and the light source unit 200 is sufficiently cooled.

<How to attach the light source unit 200>
Subsequently, an attachment method for attaching the light source unit 200 to the instrument main body 100 will be described.
First, the light source unit 200 is arranged at a position where the opening 113 of the instrument body 100 and the heat sink 210 of the light source unit 200 face each other. Then, the light source unit 200 is brought close to the opening 113 of the instrument body 100. At this time, if the light source unit 200 is gripped by hooking a finger or a tool between the extension portion 213 and the contact portion 214 formed apart from each other, the light source unit 200 can be stably held.

Next, the light source unit 200 is pushed into the opening 113 of the fixture body 100 while the guide piece 215b of the guide portion 215 located at the tip of the heat sink 210 is brought into contact with the mounting bracket 150 inside the opening 113 of the fixture body 100. .. At this time, since the trajectory of the light source unit 200 is regulated by the guide piece 215b, for example, even when it is difficult to visually recognize the opening 113 of the instrument body 100, the light source unit 200 can be attached simply by pushing it in.

Finally, the light source unit 200 is sufficiently inserted until the contact portion 214 of the heat sink portion 210 abuts on the opening 113 of the fixture body 100 to complete the attachment of the light source unit 200 to the fixture body 100. The contact between the contact portion 214 and the opening 113 prevents the light source unit 200 from entering excessively, the light source unit 200 is arranged at a predetermined position, and the installation is safely completed.

Since the extension portion 213 and the contact portion 214 have a configuration in which the facing surfaces are exposed to the outside and the cross-sectional shape is V-shaped and separated, there is a gap between the extension portion 213 and the contact portion 214. It is easy for outside air to enter. As a result, the heat of the light source module 220 received by the light source mounting surface portion 211a of the heat sink portion 210 can be sufficiently dissipated to the outside. In the conventional light source unit 200, the extension portion 213 and the contact portion 214 are not provided on the outer shell, and the heat sink portion 210 does not have a configuration in which the heat sink portion 210 is in contact with the outside. Therefore, the heat of the light source module 220 is sufficiently generated. Cannot dissipate heat to the outside.

Further, since the extension portion 213 and the contact portion 214 are separated from each other, a finger or a tool can be hooked on the extension portion 213 and the contact portion 214, and the light source unit 200 can be easily attached and detached. In particular, the contact portion 214 and the extension portion 213 can be gripped with a finger or a tool even when the side surface shape of the main cover 230 is not provided with a hooked portion due to optical characteristics or a design surface due to thinning. .. Further, since the heat sink portion 210 is made of metal, even if an excessive force is applied to the contact portion 214 and the extension portion 213 when the light source unit 200 is attached or detached, cracks or the like are unlikely to occur.

In the above description, the configuration in which the guide portion 215 is provided at the tip of the heat sink portion 210 has been described, but the configuration of the guide portion 215 may be omitted. By providing the guide portion 215 at the tip portion, the light source unit 200 can be easily attached to a predetermined position of the instrument main body 100. In particular, even in the case of cove lighting in which the position of the fixture body 100 is difficult to visually recognize, the trajectory of the light source unit 200 is regulated by the guide portion 215, and the light source unit 200 can be easily attached.

The LED 221 mounted on the light source module 220 may be a packaged surface mount component, or may be a bullet type or the like. Further, the light source module 220 may use a light source element similar to the LED 221. As such a light source element, for example, an organic electroluminescence called organic EL, Organic-Electroluminescence in English notation, or a solid-state light emitting element such as a laser diode can be used. Further, a plurality of these light source elements may be arranged in a region equal to the length in the longitudinal direction of the heat sink portion 210, and one element having a length equal to the length in the longitudinal direction of the heat sink portion 210 is provided. It may be arranged in parallel with the longitudinal direction of the. The light emitted from the LED 221 spreads by the irradiation angle α symmetrically with respect to the axis perpendicular to the light emitting surface. For example, the irradiation angle α is 120 degrees.

The light source unit 200 according to the embodiment of the present invention described above includes a contact portion 214 that abuts on the opening 113 of the instrument body 100 and an extension portion 213 that separates from the contact portion 214, and includes an extension portion 213. Formed a part of the outer shell together with the contact portion 214. Due to the configuration in which the extension portion 213 and the contact portion 214 are separated from each other, the contact area between the outer shell and the outside is increased, and the effect of radiating heat from the light source unit 200 is improved. Further, the space formed by the extension portion 213 and the contact portion 214 makes it easier to grip the light source unit 200, and the light source unit 200 can also be used as a hooking portion for a tool or the like used when removing the light source unit 200 from the main body. This facilitates the work of attachment and detachment.

In particular, since the extension portion 213 is formed obliquely with respect to the contact portion 214, it is easy to work by hooking a finger or a tool.

Further, the extension portion 213 and the contact portion 214 are formed in the longitudinal direction of the heat sink portion 210 and are formed by being thermally connected to the heat sink portion 210, and the heat of the light source module 220 received by the light source mounting portion 211 is generated. Heat is transferred. Due to the configuration in which the extension portion 213 and the contact portion 214 are exposed to the outside, the heat of the light source module 220 can be efficiently dissipated to the outside as compared with the case where the heat sink portion 210 is not exposed as in the conventional case.

Further, a main cover 230 that covers the light source module 220 is attached to the extension portion 213, and the extension portion 213 and the main cover 230 form an outer shell of the light source unit 200. Therefore, heat dissipation is easier than when the light source module 220 is covered only with the main cover 230.

Further, the lighting fixture 1000 can prevent the light source unit 200 from entering the opening of the fixture main body 100 too much by the extension portion 213 and the contact portion 214 formed in the light source unit 200. Further, since the light source unit 200 is held by the space between the extension portion 213 and the contact portion 214 and the mounting work is performed, the light source unit 200 can be reliably gripped.

100 Instrument body, 110 body case, 111 mounting surface, 112 wall surface, 113 opening, 114 power line insertion hole, 115 bolt mounting hole, 120 holding part, 130 terminal block, 140 lighting device, 150 mounting bracket, 200 light source unit , 210 light source part, 211 light source mounting part, 211a light source mounting surface part, 212 cover hooking part, 212a hooking extension part, 212b hooking convex part, 212c hooking support piece, 213 extension part, 214 contact part, 214a square part, 215 Guide part, 215a positioning piece, 215b guide piece, 216 protruding piece, 217 screw mounting part, 217a screw hole, 220 light source module, 221 LED, 222 board, 230 main cover, 231a inclined part, 231b engaging part, 240 end part Cover, 241 screws, 242 screw holes, 1000 lighting fixtures.

Claims (5)

In the light source unit attached to the main body
The heat sink attached to the main body and
A light source module attached to the heat sink portion is provided.
The heat sink portion is provided with a contact portion that comes into contact with the wall surface portion of the main body when attached to the main body, and an extension that is provided apart from the contact portion and forms a part of the outer shell together with the contact portion. The part and is formed ,
The extension portion is formed in an oblique direction with respect to the contact portion so that the distance from the contact portion increases as the distance from the contact portion increases .
Light source unit. The heat sink portion has a longitudinal shape and is fitted into an opening at an end portion of the wall surface portion.
The light source module is attached to the back surface of the surface of the heat sink portion facing the opening.
The contact portion and the extension portion are formed at both ends along the longitudinal direction of the heat sink portion.
The light source unit according to claim 1. A cover that engages with the extension and covers the light source module.
The light source unit according to claim 1 or 2. A cover hooking portion extending from the heat sink portion is provided.
The cover hooking portion and the extension portion are
The tips of each are close together and the cover is held.
The light source unit according to claim 3. The light source unit according to any one of claims 1 to 4.
It has the main body to which the light source unit is attached.
lighting equipment.

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