JP2013201090A - Lighting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting device capable of preventing deterioration of heat radiation effects.SOLUTION: A lighting device is provided with a light source module, a fixing member, and an elastic member. The light source module mounts semiconductor light-emitting elements such as LEDs (Light-emitting diodes) inside, using such semiconductor light-emitting elements as light sources. The fixing member has an opening formed for the light source module to be inserted into. The elastic member, fitted at a side wall of the light source module, biases an inner wall of the opening formed in the fixing member.

Description

  Embodiments described herein relate generally to a lighting device.

  2. Description of the Related Art Conventionally, an illumination device using a semiconductor light emitting element such as an LED (Light Emitting Diode) as a light source is used. Some of such lighting devices are attached to a socket by rotating an LED module on which an LED is mounted, for example. Such an LED module is generally attached with a heat conductive sheet or the like, and is brought into contact with a heat radiating member when the socket is attached. Such an illuminating device may be considered to facilitate the replacement of the LED module. However, since the LED module is rotated and detached, the heat conductive sheet is peeled off by friction during rotation, resulting in a reduction in the heat dissipation effect. There was a case.

Special table 2008-529234 gazette

  The problem to be solved by the present invention is to provide an illuminating device that can prevent a reduction in heat dissipation effect.

  The illumination device according to the embodiment includes a light source module, a fixing member, and an elastic member. The light source module has a light emitting element mounted therein. The fixing member has an opening into which the light source module is inserted. The elastic member is installed on the side wall of the light source module and biases the inner wall of the opening.

FIG. 1 is a perspective view showing an example of the appearance of the lighting apparatus according to the first embodiment. FIG. 2 is a perspective view illustrating an exploded example of the illumination device according to the first embodiment. FIG. 3 is a perspective view showing an exploded example of the lighting device according to the first embodiment. FIG. 4 is an enlarged perspective view showing the fixing member according to the first embodiment. FIG. 5 is an enlarged perspective view showing the attachment member according to the first embodiment. FIG. 6 is a longitudinal sectional view showing the lighting apparatus according to the first embodiment. FIG. 7 is an explanatory diagram for explaining a fixing mechanism according to the second embodiment. FIG. 8 is an explanatory diagram for explaining a fixing mechanism according to the second embodiment.

  The lighting device 1 according to the embodiment described below includes a light source module 100 in which a light emitting element is mounted, a fixing member 200 in which an opening 201 into which the light source module 100 is inserted is formed, and a side wall 101 of the light source module 100. And an elastic member 410 that urges the inner wall 210 of the opening 201.

  In addition, the lighting device 1 according to the embodiment described below is attached to the tip of the elastic member 410, presses the inner wall 210 of the opening 201 by the urging force of the elastic member 410, and fits with the inner wall 210. 310 is further provided.

  Moreover, in the illuminating device 1 which concerns on embodiment described below, the fixing member 200 has the electrodes 211a and 212a which are 1st electrodes in the inner wall 210 of the opening part 201. FIG. The attachment member 310 is electrically connected to the light source module 100 via the elastic member 410, and is in contact with the electrodes 211a and 212a to supply power to the light emitting element. The electrode 312a is a second electrode. And 313a.

  Moreover, in the illuminating device 1 which concerns on embodiment described below, the fixing member 200 has the 1st anode and 1st cathode which the insulator 213 interposes between each other as electrodes 211a and 212a. The attachment member 310 includes, as electrodes 312a and 313a, a second anode at a position facing the first anode, a second cathode at a position facing the first cathode, and a second anode and a second cathode. And an insulator 314 interposed therebetween.

  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.

(First embodiment)
[External appearance of lighting device]
FIG. 1 is a perspective view showing an example of the appearance of the illumination device 1 according to the first embodiment. In FIG. 1, the example which looked at the illuminating device 1 from the diagonally downward direction is shown. The lighting device 1 illustrated in FIG. 1 is, for example, a downlight-type lighting fixture that is embedded in an indoor ceiling. The lighting device 1 illustrated in FIG. Illuminate the room located in the downward direction. The lighting device 1 includes the light source module 100, a fixing member 200, and attachment members 310 and 320.

  The light source module 100 has a light emitting element mounted therein, and provides light emitted by the light emitting element indoors. For example, the light source module 100 includes a substrate configured in an SMD (Surface Mount Device) shape on which a plurality of light emitting elements are mounted, or a plurality of light emitting elements in a regular order such as a matrix, staggered, or radial. It has a COB (Chip on Board) type substrate and the like arranged and mounted inside.

  The fixing member 200 is made of, for example, a synthetic resin having light resistance, heat resistance, and electrical insulation, and is formed in a cylindrical shape. Specifically, the fixing member 200 has openings 201 opened at both upper and lower ends, and the light source module 100 is inserted into the openings 201. Such a fixing member 200 is embedded in the ceiling, for example, so that the lower surface of the fixing member 200 and the ceiling surface are located on substantially the same plane.

  The attachment members 310 and 320 are installed on the side wall 101 of the light source module 100. The attachment members 310 and 320 are interposed between the light source module 100 and the fixing member 200, and fix the light source module 100 to the fixing member 200.

[Disassembly example of lighting device]
Next, a disassembled example of the lighting device 1 according to the first embodiment will be described. FIG.2 and FIG.3 is a perspective view which shows the decomposition example of the illuminating device 1 which concerns on 1st Embodiment. 2 shows an example in which the illumination device 1 is viewed from an obliquely downward direction, and FIG. 3 illustrates an example in which the illumination device 1 is viewed from an obliquely upward direction.

  As shown in FIGS. 2 and 3, the side wall 101 of the light source module 100 is formed with a storage portion 111 having a shape into which the attachment member 310 can be inserted. Although not shown in FIGS. 2 and 3, the side wall 101 of the light source module 100 is formed with a storage portion 112 (see FIG. 6 described later) having a shape into which the attachment member 310 can be inserted.

  Moreover, as shown in FIG.2 and FIG.3, the illuminating device 1 comprises the elastic members 410, such as a spring. One end of the elastic member 410 is fixed to the bottom wall 111 a of the storage unit 111. The other end of the elastic member 410 is fixed to the insertion surface 311 of the attachment member 310 that is inserted into the storage unit 111. Similarly, the lighting device 1 includes an elastic member 420 (see FIG. 6 described later) that is not illustrated in FIGS. 2 and 3. One end of the elastic member 420 is fixed to the bottom wall 112a of the storage unit 112, and the other end of the elastic member 420 is fixed to the insertion surface 321 of the mounting member 320 inserted into the storage unit 112 (described later). (See FIG. 6).

  In this manner, the attachment members 310 and 320 are provided on the side wall 101 of the light source module 100. The attachment members 310 and 320 fixed to the light source module 100 are urged away from the side wall 101 by the urging forces of the elastic members 410 and 420.

  The illuminating device 1 according to the first embodiment has the opening of the fixing member 200 in a state in which an external force is applied to the mounting members 310 and 320 in a direction approaching the side wall 101 (a central direction of the light source module 100). 201 is inserted. And the attachment members 310 and 320 are urged | biased in the direction away from the side wall 101 (center of the light source module 100) by being no longer pressed from the outside. That is, the attachment members 310 and 320 urge the inner wall 210 in the opening 201 of the fixing member 200. Thereby, the light source module 100 is fixed to the fixing member 200.

  Here, the light emitting element mounted on the light source module 100 generates heat when it emits light, and may become high temperature. The performance of the light-emitting element may deteriorate at a high temperature. For this reason, a heat conductive sheet is attached to the light source module 100. For example, in the example illustrated in FIG. 3, a heat conductive sheet (not illustrated) is attached to the insertion surface 102 of the light source module 100 that is inserted into the opening 201 of the fixing member 200. The light source module 100 transmits heat to the heat radiating member when the insertion surface 102 to which the heat conductive sheet is attached is in close surface contact with the heat radiating member provided on the upper portion of the fixing member 200. Thereby, the heat generated from the light source module 100 is radiated by the heat radiating member.

  As described above, in the lighting device 1 according to the first embodiment, the light source module 100 is inserted into the fixing member 200, and the mounting members 310 and 320 attach the inner wall 210 of the fixing member 200 by the urging force of the elastic members 410 and 420. By urging, the light source module 100 is fixed to the fixing member 200. That is, in the lighting device 1 according to the first embodiment, the light source module 100 is fixed to the fixing member 200 without rotating. For this reason, the illuminating device 1 which concerns on 1st Embodiment can prevent that the heat conductive sheet affixed on the insertion surface 102 of the light source module 100 peels, As a result, it can prevent the reduction | decrease in a thermal radiation effect. .

[Lighting device electrodes]
Next, the electrode which the illuminating device 1 which concerns on 1st Embodiment has is demonstrated. FIG. 4 is an enlarged perspective view showing the fixing member 200 according to the first embodiment. FIG. 5 is an enlarged perspective view showing the attachment member 310 according to the first embodiment. 4 shows an example in which the fixing member 200 is viewed from an obliquely upward direction, and FIG. 5 illustrates an example in which the attachment member 310 is viewed from an obliquely downward direction.

  As shown in FIG. 4, the fixing member 200 is formed with substantially annular protrusions 211 and 212 protruding from the inner wall 210 toward the center of the opening 201. An electrode 211 a is provided on the upper surface of the protruding portion 211, and an electrode 212 a is provided on the upper surface of the protruding portion 212. The electrodes 211a and 212a are electrodes on the receiving side, and electrodes 312a, 313a, 322a, or 323a provided on attachment members 310 and 320, which will be described later, are in contact with each other. Of these electrodes 211a and 212a, for example, one electrode 211a is an anode and the other electrode 212a is a cathode.

  In addition, the fixing member 200 is formed by an insulator 213 between the protruding portion 211 and the protruding portion 212. In other words, the fixing member 200 is provided with the electrode 211a and the electrode 212a with the insulator 213 interposed. The insulator 213 prevents the electrode 211a and the electrode 212a from being electrically connected.

  Subsequently, as illustrated in FIG. 5, the attachment member 310 is formed with protruding portions 312 and 313 protruding outward from the outer wall that urges the inner wall 210 of the fixing member 200. The protrusions 312 and 313 are formed in a shape that can be fitted to the protrusions 211 and 212 of the fixing member 200. The protruding portion 312 is provided with an electrode 312a, and the protruding portion 313 is provided with an electrode 313a. Each of the electrodes 312a and 313a is provided at a position where it contacts the electrode 211a or 212a provided on the fixing member 200 when the attachment member 310 is fitted to the fixing member 200. Of these electrodes 312a and 313a, for example, one electrode 312a is an anode and the other electrode 313a is a cathode.

  The attachment member 310 is formed by an insulator 314 between the electrode 312a and the electrode 313a. In other words, the attachment member 310 is provided with the electrode 312a and the electrode 313a with the insulator 314 interposed therebetween. The insulator 314 prevents the electrode 312a and the electrode 313a from being electrically connected.

  Although not shown, the mounting member 320 also has two protrusions 322 and 323 protruding outward from the outer wall, and the protrusion 322 is provided with an electrode 322a. Is provided with an electrode 323a (see FIG. 6 described later). In addition, the attachment member 320 is formed of an insulator 324 between the electrode 322a and the electrode 323a (see FIG. 6 described later).

  The attachment member 310 shown in FIG. 5 is electrically connected to the light source module 100 via the elastic member 410. Similarly, the attachment member 320 is electrically connected to the light source module 100 via the elastic member 420.

  Here, the fixing member 200 shown in FIG. 4 is connected to a power supply device to which power is supplied from a commercial AC power supply (not shown). The fixing member 200 supplies power to the mounting member 310 via the electrodes 211a and 212a when the electrodes 211a and 212a abut on the electrodes 312a and 313a of the mounting member 310. Similarly, the fixing member 200 supplies power to the mounting member 320 via the electrodes 211a and 212a when the electrodes 211a and 212a abut on the electrodes 322a and 323a of the mounting member 320. Thereby, the attachment members 310 and 320 can supply electric power to the light source module 100 electrically connected. As a result, the light source module 100 can cause the light emitting element mounted therein to emit light.

  As described above, the attachment members 310 and 320 according to the first embodiment not only fix the light source module 100 to the fixing member 200 but also connect the fixing member 200 to the fixing member 200 via the electrodes, thereby providing power to the light source module 100. It plays a role as a relay member that relays supply. That is, in the illuminating device 1 according to the first embodiment, the light source module 100 is fixed to the fixing member 200 that plays the role of a socket without rotating, so that the heat conductive sheet attached to the insertion surface 102 is peeled off. Can be prevented.

[Example of cross section of lighting device]
Next, a cross section of the lighting device 1 according to the first embodiment will be described. FIG. 6 is a longitudinal sectional view showing the illumination device 1 according to the first embodiment.

  As shown in FIG. 6, the storage portion 111 of the light source module 100 is formed with a columnar convex portion 111b protruding outward from the bottom wall 111a (a direction away from the center of the light source module 100). One end of the elastic member 410 is fixed to the convex portion 111b. For example, one end of the elastic member 410 having a spiral shape is wound around the convex portion 111b, whereby the elastic member 410 is wound around the convex portion 111b. As shown in FIG. 6, the other end of the elastic member 410 is fixed to the insertion surface 311 of the mounting member 310.

  Similarly, the storage portion 112 is formed with a cylindrical convex portion 112b protruding outward from the bottom wall 112a, and one end of the elastic member 420 is wound around the convex portion 112b. Further, the other end of the elastic member 420 is fixed to the insertion surface 321 of the mounting member 320.

  Accordingly, the elastic member 410 urges the attachment member 310 to the inner wall 210 of the fixing member 200, and the elastic member 420 urges the attachment member 320 to the inner wall 210 of the fixing member 200. That is, the protruding portions 312 and 313 of the mounting member 310 and the protruding portions 211 and 212 of the fixing member 200 are fitted by the biasing force of the elastic members 410 and 420, and the protruding portions 322 and 323 of the mounting member 320 are fixed. The protrusions 211 and 212 of the member 200 are fitted. As a result, the elastic members 410 and 420 fix the light source module 100 to the fixing member 200.

  As shown in FIG. 6, when the fixing member 200 and the mounting member 310 are fitted, the electrode 211a of the fixing member 200 and the electrode 312a of the mounting member 310 come into contact with each other, and the electrode 212a of the fixing member 200 And the electrode 313a of the mounting member 310 abut. Similarly, when the fixing member 200 and the mounting member 320 are fitted, the electrode 211a of the fixing member 200 and the electrode 322a of the mounting member 320 come into contact with each other, and the electrode 212a of the fixing member 200 and the mounting member 320 The electrode 323a contacts.

  As a result, power is supplied to the light source module 100 from a commercial AC power source (not shown) via the fixing member 200, the attachment members 310 and 320, and the elastic members 410 and 420. Can emit light.

  In addition, as shown in FIG. 6, the electrodes 211 a and 212 a of the fixing member 200 are formed at positions that cannot be directly viewed from the insertion direction of the light source module 100. Specifically, the protrusions 211 and 212 are formed in a shape protruding from the inner wall 210 in a triangular shape. The electrode 211a is formed on a surface of the triangular protrusion 211 that cannot be directly viewed from the insertion direction of the light source module 100, and the electrode 212a is directly viewed from the insertion direction of the light source module 100 of the triangular protrusion 212. It is formed on the surface that cannot. For this reason, in the illuminating device 1 which concerns on 1st Embodiment, it can prevent that the electrodes 211a and 212a of the fixing member 200 are seen directly. Furthermore, in the illuminating device 1 according to the first embodiment, the electrodes 211a and 212a are formed on a surface that cannot be directly viewed. Specifically, as shown in FIG. 6, since the insulator 213 is formed so as to cover the electrodes 211a and 212a, it is difficult for the operator to touch the electrodes 211a and 212a directly. Can be prevented.

  Moreover, as shown in FIG. 6, the electrodes 211a and 212a of the fixing member 200 are formed in a substantially annular shape. For this reason, in the lighting device 1 according to the first embodiment, the light source module 100 is fixed to the fixing member 200 without aligning the electrodes 312a and 313a of the mounting member 310 with respect to the electrodes 211a and 212a of the fixing member 200. Since it can be inserted, the light source module 100 can be easily attached.

[Effect of the first embodiment]
As described above, according to the illuminating device 1 according to the first embodiment, the light source module 100 is fixed to the fixing member 200 that plays the role of a socket without rotating. It can prevent that a heat conductive sheet peels. As a result, according to the illuminating device 1 which concerns on 1st Embodiment, it can prevent that the thermal radiation effect reduces. Moreover, according to the illuminating device 1 which concerns on 1st Embodiment, since the light source module 100 can be attached or detached from the fixing member 200 only by pressing the attachment members 310 and 320, the light source module 100 is replaced | exchanged easily. be able to.

(Second Embodiment)
The lighting device 1 described above may be implemented in various different forms other than the first embodiment. In the second embodiment, another embodiment of the lighting device 1 will be described.

[Fixing mechanism]
In the first embodiment, the light source module 100 is fixed to the fixing member 200 by the attachment members 310 and 320 urging the inner wall 210 in the opening 201 of the fixing member 200. However, the fixing mechanism for fixing the light source module 100 to the fixing member 200 is not limited to the above example. This point will be described with reference to FIGS. 7 and 8 are explanatory views for explaining the fixing mechanism according to the second embodiment.

  In the example shown in FIG. 7, the fixing member 500 includes a lower surface cover 510, an upper surface cover 520, fixing tools 531 and 532, and release tools 541 and 542. The lower surface cover 510 and the upper surface cover 520 sandwich the fixing tools 531 and 532 and the release tools 541 and 542.

  The lower surface cover 510 is formed in a cylindrical shape opened at both upper and lower ends. Further, the lower surface cover 510 is formed with through holes 511 and 512. The upper surface cover 520 is formed so as to be able to be fitted or screwed to the lower surface cover 510 and is provided with an electrode 521.

  The fixtures 531 and 532 are members that fix a light source module 600 to be described later to the fixing member 500. The release tools 541 and 542 are members for removing the light source module 600 described later from the fixing member 500. Further, as shown in FIG. 7, the releasers 541 and 542 are formed with convex portions 541a and 542a, respectively. The fixing tools 531 and 532 are sandwiched between the lower surface cover 510 and the upper surface cover 520 in a state where the convex portions 541a and 542a penetrate the through holes 511 or 512 of the lower surface cover 510.

  Such a fixing member 500 is embedded in the ceiling, for example, so that the lower surface of the lower surface cover 510 and the ceiling surface are positioned on substantially the same plane.

  Like the light source module 100 described above, the light source module 600 has a light emitting element mounted therein, and provides light emitted by the light emitting element indoors. In the example illustrated in FIG. 7, the light source module 600 provides light from an opening formed in the lower surface cover 510.

  The light source module 600 is inserted from an opening formed in the lower surface cover 510. The light source module 600 is provided with electrodes 611 and 612. The electrodes 611 and 612 are provided at positions where the light source module 600 contacts the electrode 521 of the top cover 520 when the light source module 600 is inserted from the opening of the bottom cover 510. In the light source module 600, as shown in FIG. 7, an annular protrusion 620 protruding in a direction away from the side wall is formed at the upper end of the side wall.

  Cross sections of the fixing member 500 and the light source module 600 will be described with reference to FIG. In addition, in FIG. 8, the expanded sectional view of the area | region where the fixing tool 531 and the releasing tool 541 were mounted is shown. In FIG. 8, the illustration of the lower surface cover 510 is omitted.

  As shown in FIG. 8, the fixture 531 is fixed to the inner wall of the top cover 520 via an elastic member 551. Specifically, one end of the elastic member 551 is fixed to the inner wall of the top cover 520, and the other end of the elastic member 551 is fixed to the fixture 531. As a result, the fixing tool 531 is urged in a direction toward the center of the fixing member 500. Further, as shown in FIG. 8, the fixture 531 is formed with a protruding portion 541b.

  That is, in the example supported in FIG. 8, when the light source module 600 is inserted from the opening formed in the lower surface cover 510, the protruding portion 620 of the light source module 600 presses the fixture 531. When the protruding portion 620 of the light source module 600 passes through the fixture 531, the fixture 531 moves in the direction toward the center of the fixture 500 by the biasing force of the elastic member 551. Thereby, the protrusion part 620 of the light source module 600 and the protrusion part 541b of the fixture 531 are locked. Although illustration is omitted here, the fixture 532 shown in FIG. 7 is also engaged with the protruding portion 620 of the light source module 600. As a result, the light source module 600 is fixed to the fixing member 500 that serves as a socket without rotating.

  As described above, even with the fixing mechanism shown in FIGS. 7 and 8, it is possible to prevent the heat conductive sheet attached to the light source module 600 from being peeled off, and to prevent a reduction in the heat dissipation effect.

[Other Embodiments]
In the above embodiment, the downlight has been described as an example. However, the lighting device 1 can be applied to a direct-mounted lighting fixture other than the type embedded in the ceiling.

  Moreover, the shape, the raw material, and the material of each member which concern on the said embodiment are not restricted to embodiment or what was illustrated. For example, the light source module 100 and the fixing member 200 may be rectangular instead of circular.

  As described above, according to the embodiment, it is possible to prevent a reduction in the heat dissipation effect.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 Illuminating device 100 Light source module 200 Fixing member 201 Opening part 211a, 212a Electrode 310 Mounting member 312a, 313a Electrode 410, 420 Elastic member

Claims (4)

A light source module having a light emitting element mounted therein;
A fixing member having an opening into which the light source module is inserted;
An elastic member installed on a side wall of the light source module and biasing an inner wall of the opening;
A lighting device comprising: An attachment member that is attached to the tip of the elastic member, presses the inner wall of the opening by the biasing force of the elastic member, and fits with the inner wall;
The illumination device according to claim 1, further comprising: The fixing member has a first electrode on the inner wall of the opening,
The attachment member is electrically connected to the light source module via the elastic member, and has a second electrode for making electrical contact with the first electrode and supplying power to the light emitting element.
The lighting device according to claim 2. The fixing member includes, as the first electrode, a first anode and a first cathode with an insulator interposed therebetween,
The mounting member has, as the second electrode, a second anode at a position facing the first anode and a second cathode at a position facing the first cathode, and the second anode and the second electrode. Having an insulator interposed between the cathode,
The lighting device according to claim 3.

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