JP2016021336A - Lighting device and emergency lighting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an emergency lighting device which efficiently radiates heat emitted from a light emitting substrate to an external part of a device body.SOLUTION: A lighting device includes: a device body part 10 having an opening part 14 forming a device opening; an LED substrate 113 in which LEDs 111 are mounted on a mounting surface, the LED substrate 113 which is disposed at the opening part 14 so that the mounting surface faces an external part of the device body part 10; and a heat radiation lid part 210 which is disposed in the device body part 10, contacts with a rear surface of the mounting surface, and also contacts with an inner side surface of the device body part 10.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a lighting fixture and an emergency lighting fixture.

  In the case of an emergency lighting device that is turned on in the event of a power outage in the event of a fire, etc., the function of the predetermined emergency lighting device must be exhibited in the event of an emergency such as a fire. In order to satisfy the conditions of the function of a predetermined emergency lighting fixture, the portion that constitutes the function of the emergency lighting fixture in the emergency lighting fixture technical standard JIL5501 (Japan Lighting Fixture Industry Association Standard) or the guidelines for emergency lighting fixtures Regulations such as covering with a flame-retardant material and lighting of 1 lux for 30 minutes in an ambient temperature of 140 ° C. are stipulated. For this reason, emergency lighting fixtures are designed to meet this requirement.

  For example, an emergency lighting fixture described in Patent Document 1 efficiently dissipates heat generated by an LED by contacting a heat radiating unit including a plurality of radiating fins with a light source unit including an LED (light emitting diode). The irradiation is performed for a predetermined time.

JP 2014-32868 A

  However, the emergency lighting fixture described in Patent Document 1 has no description regarding heat dissipation from the heat radiating portion to the outside of the fixture. When the heat radiating part is radiating heat to the inside of the appliance, it is considered that the ambient temperature of the LED rises, and there is a problem that the life of the LED may be reduced.

  The present invention has been made to solve the above-described problems, and the LED substrate efficiently dissipates heat from the LED substrate by including a heat dissipating portion that abuts against the inner surface of the instrument main body. The purpose is to provide emergency lighting equipment.

  A lighting fixture according to the present invention is a fixture main body having an opening that forms a fixture opening, and a light emitting substrate on which a light emitting element is mounted on a mounting surface, and the mounting surface extends from the fixture opening to the outside of the fixture main body. A light-emitting substrate disposed in the opening to face the light source module, and a light source module that is disposed in the interior of the instrument main body and that has a heat radiating portion that abuts the back surface of the mounting surface and abuts the inner side surface of the instrument main body. It is characterized by providing.

  According to the present invention, since the heat dissipating part is provided inside the fixture body and abuts against the back surface of the mounting surface of the light emitting substrate and abuts against the inner side surface of the fixture body, heat generated from the light emitting substrate is efficiently generated. Heat can be dissipated to the outside of the instrument body.

1 is a perspective view of a lighting fixture 1 according to Embodiment 1. FIG. 1 is an exploded perspective view of a lighting fixture 1 according to Embodiment 1. FIG. 1 is a cross-sectional view of a lighting fixture 1 according to Embodiment 1. FIG. (A) is a perspective view of the frame part 120 of the lighting fixture 1 which concerns on Embodiment 1, (b) is a perspective view of the frame part 120a which is a modification of the frame part 120. FIG. It is sectional drawing of the lighting fixture 1b which concerns on Embodiment 2. FIG. It is sectional drawing of the light source part 200 of the lighting fixture 1b which concerns on Embodiment 2. FIG. It is a perspective view of the thermal radiation cover part 210 with which the light source part 200 which concerns on Embodiment 2 is provided. It is sectional drawing of the thermal radiation cover part 210b which is a modification of the thermal radiation cover part 210 which concerns on Embodiment 2. FIG. It is sectional drawing of the light source part 300 which concerns on Embodiment 3. FIG. FIG. 10 is an enlarged detail view of part A of the light source unit 300 shown in FIG. 9. 10 is a diagram illustrating an arrangement example of a light distribution control unit 311 according to Embodiment 3. FIG. FIG. 6 is a reference diagram (solid line, dotted line, one-dot chain line) of a target light distribution characteristic of the light source unit 300 and a reference diagram (two-dot chain line) of a light distribution characteristic of an emergency lighting fixture using a mini-halogen.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to the embodiments described below. Moreover, in the following drawings, the relationship of the size of each component may be different from the actual one. Also, in the description of the embodiment, directions and positions such as “top”, “bottom”, “left”, “right”, “front”, “back”, “front”, “back” are indicated. These notations are merely described as such for convenience of explanation, and do not limit the arrangement, orientation, etc., of devices, instruments, parts, and the like.

Embodiment 1 FIG.
FIG. 1 is a perspective view of a lighting fixture 1 according to the present embodiment. FIG. 2 is an exploded perspective view of the lighting fixture 1 according to the present embodiment. FIG. 3 is a cross-sectional view of the lighting fixture 1 according to the present embodiment. 4A is a perspective view of the frame portion 120 of the lighting fixture 1 according to the present embodiment, and FIG. 4B is a perspective view of a frame portion 120a that is a modified example of the frame portion 120.

  The lighting fixture 1 according to the present embodiment is an emergency lighting fixture such as an emergency light, and is embedded and fixed in a mounted portion such as a ceiling or a wall.

  The luminaire 1 includes a bottomed cylindrical instrument body 10 (an instrument body) having an opening formed on one surface, and a light source unit 100 (a light source module) attached to close the opening (hereinafter referred to as an instrument opening). Or simply referred to as a light source), a lighting device unit 11 (lighting device) for lighting the light source unit 100, an emergency power source unit 12 (power source unit) serving as an emergency power source, and a charging state of the emergency power source unit 12 Is provided with an inspection switch unit 13 and an inspection monitor unit.

The instrument main body 10 is formed in a bottomed cylindrical shape having an opening 14 that forms an instrument opening on the lower surface, and is formed of a non-combustible material such as metal. In the instrument main body 10, the outer side surface is the outer side surface 101 and the inner side surface is the inner side surface 102.
In addition, the instrument body 10 has an instrument collar 15 formed on the periphery of the opening 14. The fixture body 10 includes an attachment portion 16 (attachment means) for fixing the lighting fixture 1 to an attached portion such as a ceiling on the fixture flange 15 side of the outer surface 101.
In addition, a pair of holding portions 17 are disposed inside (inside) the instrument main body portion 10. The holding unit 17 has an L-shaped cross section, and holds the lighting device unit 11 and the like in a space region formed by the L shape and the inner side surface 102. The emergency power supply unit 12 is disposed in a space region between the pair of holding units 17.
Further, a light source fixing claw portion 18 (light source mounting portion) is disposed on the inner side surface 102 of the instrument main body 10 at a position facing the inner side surface 102. The light source fixing claw portion 18 is detachably fixed to the instrument body portion 10 by engaging with a fixing spring portion 140 (see FIGS. 2 and 4A) (fixing portion) of the light source portion 100. To do. The light source fixing claw portion 18 is composed of a pair of L-shaped claw portions 18a and 18b. The light source fixing claw portion 18 is detachably attached to the instrument main body portion 10 by engaging with the fixing spring portion 140.

The lighting device unit 11 converts electric power from a commercial power supply (AC power supply) provided outside during normal operation and supplies the converted electric power to the light source unit 100 and also supplies electric power for charging to the emergency power supply unit 12.
Further, in an emergency in which the supply of power from the commercial power supply is stopped due to a fire, a power failure, or the like, the lighting device unit 11 switches to receive power supply from the emergency power supply unit 12 and turns on the light source unit 100 for a predetermined time.

The emergency power supply unit 12 is charged with electric power supplied from a commercial power supply via the lighting device unit 11 at normal times. The charged electric power is provided to the light source unit 100 via the lighting device unit 11 in an emergency.
The state of charge of the emergency power supply unit 12 can be confirmed by the inspection switch unit 13.

  The inspection switch unit 13 artificially creates a power failure state of the commercial power supply, and is disposed on the lower surface side of the light source unit 100.

  The attachment portion 16 is formed by bending a spring material such as a stainless steel wire, and is disposed so as to be paired with the outer side surface 101 of the instrument main body portion 10. The attachment part 16 fixes the lighting fixture 1 to a to-be-attached part.

  The light source unit 100 includes a light source unit unit 110 including an LED 111 (or a light emitting element) as a light source, a frame unit 120 into which the light source unit unit 110 is inserted, and a fireproof cover unit 130 (or a cover unit) joined to the frame unit 120. And a fixing spring part 140 (see FIG. 4A) (or a fixing part or a fixing means) that is disposed on the frame part 120 and fixes the light source part 100 to the instrument main body part 10.

  The light source unit 110 is arranged on the front side of the LED substrate 113 (or a light emitting substrate) composed of a plurality of LEDs 111 and a substrate 112 on which the plurality of LEDs 111 are mounted, and transmits light from the LEDs 111 in a predetermined manner. The lens unit 114 radiates to an angle, and a cover unit 115 disposed on the front surface of the lens unit 114.

  The LED substrate 113 is obtained by mounting a plurality of LEDs 111 on a mounting surface 1121 of a substantially circular substrate 112. The plurality of LEDs 111 are arranged in a substantially circular shape on the substrate 112 substantially equally.

The lens unit 114 is disposed between the LED substrate 113 and the cover unit 115 and distributes light emitted from the LED 111. The lens portion 114 is formed from a transparent resin material or the like, has a cylindrical shape that is substantially the same as the outer diameter of the substrate 112, and has a substantially semicircular recess formed on the front surface of the LED 111. The light distribution is controlled at a predetermined angle.
As shown in FIG. 3, the rear surface side of the lens portion 114 has substantially the same shape as the substrate 112, and the front surface side of the lens portion 114 has substantially the same shape as a cover portion 115 described later.

  The cover part 115 is a non-combustible light transmitting member made of glass or the like, and has a disk shape substantially the same as the outer diameter of the lens part 114.

The frame part 120 is formed of a noncombustible material such as iron or aluminum, and includes a frame cylinder part 121 (cylinder part) into which the light source unit part 110 is inserted. The frame cylinder part 121 is a cylinder shape which both ends open.
The frame portion 120 includes a frame front surface portion 122 (rib portion) that is a ring-shaped (annular, ring-shaped) flange portion that extends outward from the periphery of the opening on the front surface side (one side) of the frame tube portion 121. And a frame flange 123 that is a ring-shaped (annular, ring-shaped) flange extending outward from the periphery of the opening on the rear surface side (the other side) of the frame cylinder 121.
The frame flange portion 123 is provided in an opening opposite to the opening in which the frame front surface portion 122 of the frame tube portion 121 is provided, and fixes the fire protection cover portion 130.
When the light source unit 100 is attached to the instrument main body 10, the frame front surface part 122 (collar part) closes the gap between the frame tube part 121 and the periphery of the opening 14 of the instrument main body 10.

The frame tube portion 121 includes a front surface frame tube portion front portion 1211, a rear surface side tube tube portion rear portion 1212 having a larger outer diameter than the frame tube portion front portion 1211, a frame tube portion front portion 1211, and a frame tube portion rear portion. And 1212 at the boundary with 1212.
Further, an insertion hole (not shown) through which the electric wire from the lighting device unit 11 is passed is formed on the side surface of the frame cylinder unit 121 (around the side of the lens unit 114).

  In addition, the diameter dimension of the inner circle of the frame front surface part 122 is formed smaller than the diameter dimension of the inner side of the frame cylinder front part 1211. For example, the frame portion 120 includes a ring-shaped (annular, ring-shaped) inner flange portion 1221 that protrudes from the peripheral edge portion of the inner circle of the frame front surface portion 122 toward the inner circle center portion on the frame front surface portion 122. Also good. The cover portion 115 inserted from the opening on the rear surface side of the frame cylinder portion 121 is locked to the inner flange portion 1221 of the frame front surface portion 122, whereby the light source unit portion 110 inserted into the frame cylinder portion 121 is engaged. Stopped.

  Further, as shown in FIG. 4A, a fixed spring portion 140 is disposed on the outer surface 101 of the frame portion 120 so as to face each other with the frame cylinder portion 121 interposed therebetween. A coil portion 141 is formed at the center of the fixed spring portion 140, and a spring arm portion 142 is formed so as to be V-shaped from the coil portion 141.

The fireproof cover 130 is made of a noncombustible material such as iron or aluminum, and closes the opening on the side (rear surface side) of the frame cylinder portion 121 where the frame collar portion 123 is formed.
In addition, the fire cover 130 is fitted into the frame cylinder 121 and is in close contact with the opposite surface of the mounting surface 1121 on which the LED 111 of the LED substrate 113 is mounted (hereinafter also referred to as a back surface 1122 or an adhesive surface). A circular substrate mounting recess 131 is formed. A lid collar 132 is formed around the substantially circular substrate mounting recess 131. Note that the fireproof cover 130 may be integrated with the frame cylinder 121.

  The light source unit part 110 inserted into the frame cylinder part 121 is held by the frame front face part 122 (for example, the inner flange part 1221) and the fire protection cover part 130.

Here, an example of a procedure for assembling the light source unit 100 using the light source unit unit 110, the frame unit 120, and the fire protection lid unit 130 will be described.
First, the cover portion 115, the lens portion 114, and the LED substrate 113 are inserted from the opening on the rear surface side of the frame portion 120. The cover portion 115 is locked to the inner flange portion 1221 of the frame front surface portion 122. The cover portion 115 may be fixed to the inner peripheral surface of the frame cylinder front portion 1211 and the inner side of the inner flange portion with an adhesive or the like so as not to affect the portion exposed from the opening on the front side. Alternatively, the cover portion 115 may be fixed by providing an annular groove portion in the vicinity of the inner flange portion 1221 on the inner peripheral surface of the frame cylinder front portion 1211 and engaging the peripheral portion of the cover portion 115. The cover portion 115 may not be directly fixed to the frame portion 120, and may be fixed by the frame front surface portion 122 and the lens portion 114.

  The LED substrate 113 is housed inside the frame cylinder 121 so that the mounting surface 1121 faces the opening on the front side of the frame cylinder 121. When the light source unit 100 is attached to the instrument main body 10, the LED substrate 113 is arranged in the vicinity of the opening 14 so that the mounting surface 1121 faces the outside of the instrument main body 10 from the opening 14 (apparatus opening). become. The LED substrate 113 and the lens portion 114 may be fixed by screwing or the like.

  Next, the board mounting recess 131 of the fire cover 130 is placed on the frame cylinder 121 (frame cylinder rear 1212) so that the back surface of the LED board 113 and the board mounting recess 131 of the fire cover 130 are in contact (contact). Fit. Then, the frame collar part 123 of the frame part 120 and the lid collar part 132 of the fire protection lid part 130 are brought into contact with each other, and the frame collar part 123 and the lid collar part 132 are combined and screwed with a screw 160.

In the light source unit 110, by sticking the LED board 113 and the fire cover 130 using a conductive tape or the like, the adhesion between the LED board 113 and the fire cover 130 is improved, and the heat dissipation performance is improved. It may be improved.
Moreover, in order to improve the adhesiveness with the LED board 113, the fireproof cover part 130 may have a shape in which the vicinity of the circle center of the board mounting recess 131 is recessed toward the LED board 113 side.
Moreover, the shape which forms integrally the fire prevention cover part 130 and the frame part 120, and radiates the heat | fever from the LED board 113 to the exterior from the frame front surface part 122 may be sufficient.

The light source unit 100 is engaged with the light source fixing claw unit 18 of the instrument main body unit 10 in a state where the V shape of the spring arm 142 provided on the frame unit 120 is closed to close the light source unit 100. 10, the fixing spring part 140 and the light source fixing claw part 18 are elastically fixed and fixed to the instrument body part 10.
When removing the light source unit 100 from the instrument body 10 for replacement of the emergency power source unit 12 or the like, the spring arm unit 142 slides the light source fixing claw unit 18 by pulling the light source unit 100 downward. It moves and becomes removable.

FIG. 4B is a perspective view of the frame portion 120a having a fixed spring portion 140a different from the fixed spring portion 140 described in FIG.
In FIG. 4A, the mechanism for detachably fixing the light source unit 100 to the instrument main body unit 10 by the fixed spring unit 140 has been described. However, the fixed spring unit 140 has a plate spring shape as illustrated in FIG. The fixed spring portion 140a may be used. When the plate spring-shaped fixing spring portion 140a is used, the light source fixing claw portion 18 does not need to be provided.
Or the mechanism etc. which arrange | position the fitting means which mutually fits in the instrument main body part 10 and the light source part 100 may be sufficient, and what is fixed via a screw | thread etc. may be sufficient.

  In the present embodiment, by covering the LED substrate 113 serving as a light source with the frame part 120, the cover part 115, and the fire protection cover part 130, it is possible to suppress fire damage such as fire spread of the light source part 100 when a fire occurs, It can serve as an emergency lighting fixture (device).

Further, since the light source unit 100 is modularized and detachably fixed to the instrument main body unit 10 by the fixing spring unit 140, the emergency power source unit 12 and the like can be easily replaced and repaired.
Moreover, when attaching the instrument main-body part 10 directly to to-be-attached parts, such as a ceiling, construction work can be simplified because the light source part 100 can be attached or detached easily.

  In addition, although the emergency power supply unit 12 and the light source unit 100 are described as separate configurations, the emergency power supply unit 12 may be included in the light source unit 100.

  The instrument body 10 is made of a non-combustible material such as iron or aluminum. By closing the opening with the light source unit 100, the lighting device unit 11, the emergency power source unit 12 and the like are provided. Can be fireproof.

In the present embodiment, the substantially circular cylindrical frame cylinder 121 has been described, but the frame cylinder is not limited to a substantially circular cylinder. The cylindrical shape is not limited to a circle but may be a hollow shape, and the present embodiment can be applied if the frame tube portion is a polygonal, elliptical, or irregular hollow shape.
Further, the LED substrate may not be circular, but may be polygonal, elliptical, indefinite, or the like.
Further, the instrument main body portion may not be a substantially circular cylindrical shape (cylindrical shape), and may be a box shape, a spherical shape, a polygonal column shape, or the like as long as the instrument opening is formed and the light source portion is covered.
Further, the frame tube portion may be formed integrally with the fireproof lid portion and open only on one side.

Embodiment 2. FIG.
In the present embodiment, differences from the first embodiment will be mainly described.
FIG. 5 is a cross-sectional view of the lighting fixture 1b according to the present embodiment. FIG. 6 is a cross-sectional view of the light source unit 200 of the lighting fixture 1b according to the present embodiment. FIG. 7 is a perspective view of the heat dissipating lid 210 provided in the light source unit 200 according to the present embodiment. FIG. 8 is a cross-sectional view of a heat dissipation lid portion 210b which is a modification of the heat dissipation lid portion 210 according to the present embodiment.

  In the present embodiment, a light source unit 200 that is a modification of the light source unit 100 described in the first embodiment will be described. In addition, about the structure similar to Embodiment 1, the same code | symbol or name as Embodiment 1 is attached | subjected, and detailed description is abbreviate | omitted.

  The luminaire 1b of the present embodiment includes a bottomed cylindrical body 10 having an opening on one side, a light source 200 (also referred to as a light source module or a light source) attached so as to close the opening, and a light source in a normal state. The lighting device unit 11 for lighting the unit 200, the emergency power source unit 12 serving as an emergency power source, and the inspection switch unit 13 for confirming the state of charge of the emergency power unit 12 are provided.

  The light source unit 200 includes a light source unit unit 110 including an LED 111 as a light source, a frame unit 120 into which the light source unit unit 110 is inserted, a heat dissipation lid unit 210 (or a heat dissipation unit) joined to the frame unit 120, and a frame unit 120. Are provided with a fixing spring part 140 (or fixing means) for fixing the light source part 200 to the instrument body part 10 and an inspection switch part 13 for checking the state of charge of the emergency power supply part 12.

In addition to the function corresponding to the fire protection cover part 130 described in the first embodiment, the heat dissipation cover part 210 has a function of efficiently radiating the heat of the LED substrate 113. The heat dissipating lid 210 is disposed inside the instrument main body 10, abuts against the back surface 1122 of the LED substrate 113, and abuts against the inner surface of the instrument main body 10.
The heat radiation lid 210 is formed in a substantially lid shape by a metal plate having heat radiation, for example. The heat dissipating lid 210 may be made of a resin or the like as long as it has heat dissipation.

The heat radiating lid 210 is formed continuously from a flat plate heat radiating main body 211 (substrate abutting portion) that contacts the back surface 1122 of the LED substrate 113 and the heat radiating main body 211, and the inner side surface 102 of the instrument main body 10. A heat-dissipating side surface portion 213 (inner surface abutting portion) that abuts.
The heat radiating main body 211 is formed to have substantially the same size as the inner diameter of the instrument main body 10. Further, the heat radiating side surface portion 213 is formed substantially perpendicular to the peripheral portion of the heat radiating main body portion 211.

  The heat radiating main body 211 is formed with a spring notch 214 to avoid the fixed spring 140. Further, the heat dissipating main body 211 is formed with a substrate mounting recess 212 that fits into the opening on the rear surface side of the frame cylinder 121 and is in close contact with the back surface (adhesion surface) of the mounting surface 1121 on which the LED 111 of the LED substrate 113 is mounted. Has been.

  The heat radiating side surface portion 213 is formed substantially perpendicular to the lower side (front side direction, irradiation direction) than the peripheral portion of the heat radiating main body portion 211. The heat radiation side surface portion 213 contacts the inner side surface 102 of the instrument main body 10 when the light source 200 is inserted and fixed inside the instrument main body 10.

  The heat radiating side surface portion 213 can dissipate heat generated by the light emission of the LED substrate 113 to the outside through the device main body portion 10 by being brought into contact with the inner side surface 102 of the device main body portion 10.

  In the present embodiment, since the light source unit 200 includes the heat dissipating lid portion 210 that contacts the inner side surface 102 of the instrument main body portion 10, the heat dissipation of the LED substrate 113 can be improved.

A heat dissipation lid portion 210b shown in FIG.
The heat radiation lid part 210b includes a heat radiation main body part 211b formed smaller than the inner diameter of the instrument main body part 10, an inclined part 215 whose inner diameter increases from the peripheral part of the heat radiation main body part 211b downward, and a lower end part of the inclined part 215. And a heat dissipating side surface portion 213b formed substantially vertically downward.
That is, the heat dissipation lid portion 210b has a shape in which the corner portion of the boundary between the heat dissipation main body portion 211 and the heat dissipation side surface portion 213 is chamfered in the heat dissipation lid portion 210 shown in FIG.
Thus, since the heat dissipation lid part 210b includes the inclined part 215, the light source part 200 can be easily inserted into the instrument body part 10.

  The heat dissipating lid portion 210 may be formed using a material that elastically deforms, and may be inserted while pressing the inner side surface of the instrument main body portion 10.

  In addition, although the heat radiation side surface part 213 has described the image formed from the perimeter part of the heat radiation main-body part 211, the heat radiation side surface part 213 contact | abuts the inner surface of the instrument main body part 10, and has a heat-transfer effect. If there is, it may be partially formed.

  Note that the LED substrate 113 of the light source unit 110 may be attached to the heat dissipation lid 210 using a conductive tape or the like to improve adhesion and improve heat dissipation performance.

  As mentioned above, according to the lighting fixture which concerns on this Embodiment, the heat emitted from light emitting elements, such as LED, can be efficiently thermally radiated outside the fixture main-body part.

Embodiment 3 FIG.
In the present embodiment, differences from the first embodiment will be mainly described.
FIG. 9 is a cross-sectional view of light source unit 300 according to the present embodiment. FIG. 10 is an enlarged detail view of a part A of the light source unit 300 shown in FIG. FIG. 11 is a diagram illustrating arrangement examples (a) and (b) of the light distribution control unit 311 according to the present embodiment.

  In the present embodiment, a light source unit 300 that is a modification of the light source unit 100 of the first embodiment will be described. In addition, about the structure similar to Embodiment 1, the same code | symbol or name as Embodiment 1 is attached | subjected, and detailed description is abbreviate | omitted.

  In the present embodiment, the luminaire turns on the light source unit 300 (or the light source) that is attached so as to close the opening, the light source unit 300 (or the light source) that is attached so as to close the opening, and the light source unit 300 that is normally open. A lighting device unit 11, an emergency power source unit 12 serving as an emergency power source, and an inspection switch unit 13 for confirming the state of charge of the emergency power unit 12 are provided.

  The light source unit 300 includes an LED substrate 113 (or a light emitting substrate) including a plurality of LEDs 111 (or light emitting elements) and a substrate 112 on which the plurality of LEDs 111 are mounted, a frame portion 120 into which the LED substrate 113 is inserted, and an LED substrate. A lid portion 130c to which 113 is attached, a light distribution cover portion 310 disposed on the frame portion 120 so as to be positioned in front of the LED substrate 113, and a light source portion 300 disposed on the frame portion 120 to the instrument body portion 10. And a fixing spring part 140 (or a fixing part or fixing means) for fixing.

In the present embodiment, the difference from the first embodiment is that the light source unit 300 does not include the lens unit 114 described in the first embodiment and includes a light distribution cover unit 310 instead of the cover unit 115. It is.
Further, the shape of the lid portion 130c is also different from the fireproof lid portion 130 described in the first embodiment. The lid portion 130c of the present embodiment includes a lid side surface portion 1301 formed substantially vertically from the outer peripheral edge portion of the lid collar portion 132 downward (front side direction, irradiation direction). The configuration of the lid portion 130c other than the lid side surface portion 1301 is the same as that of the fireproof lid portion 130.
The shape of the lid portion 130c may be the same as that of the fireproof lid portion 130 described in the first embodiment, or may be the same as that of the heat dissipation lid portion 210 described in the second embodiment.

  The light distribution cover part 310 is formed of a non-combustible light transmitting member made of glass or the like, and has a substantially disk shape that covers the LED substrate 113. The method for fixing the light distribution cover part 310 to the frame part 120 is the same as that described in the first embodiment.

  As shown in FIGS. 9 and 10, in the light distribution cover unit 310, a surface facing the mounting surface 1121 of the LED substrate 113 is a cover facing surface 3101. In the light distribution cover part 310, the light distribution control member 312 is attached to a part of the cover facing surface 3101 corresponding to the front surface of the LED 111. A portion to which the light distribution control member 312 is attached is referred to as a light distribution control unit 311.

  As shown in FIGS. 11A and 11B, the light distribution cover unit 310 is a facing region that faces the placement region 1111 including the position where the plurality of LEDs 111 are placed on the mounting surface 1121 in the cover facing surface 3101. A light distribution control member 312 is attached to 3111.

As shown in FIG. 11A, the light distribution cover 310 includes light distribution control members 312 in a plurality of individual regions 3112 facing each of the plurality of LEDs 111 in the facing region 3111 of the cover facing surface 3101. To be attached.
Alternatively, as shown in FIG. 11B, the light distribution control member 312 may be attached to the entire region in the facing region 3111 of the cover facing surface 3101. Alternatively, the light distribution control member 312 may be attached to an area slightly wider than the facing area 3111 of the cover facing surface 3101.

As shown in FIG. 10, the light distribution cover 310 has a specific angle range from the substantially central portion of the light emitting region 1112 on the mounting surface 1121 of the mounting surface 1121 in the cover facing surface 3101 as an individual region 3112. The light distribution control member 312 is attached to the individual region 3112.
The light distribution control unit 311 to which the light distribution control member 312 is attached distributes the light emitted from the LED 111 to a predetermined angle. As shown in FIG. 10, the light distribution control unit 311 is arranged in a range of a specific angle θ ° from the direction directly below the LED 111 (0 °), so that the light source unit 300 can obtain a predetermined light distribution. .

FIG. 12 is a reference diagram of the target light distribution characteristic of the light source unit 300 (solid line, dotted line, one-dot chain line) and a reference diagram of the light distribution characteristic of the emergency lighting fixture using mini-halogen (two-dot chain line). .
FIG. 12 shows the relative light intensity when the light intensity is at a peak of 100%. In FIG. 12, the target light distribution characteristics of the light source unit 300 are shown in three types (solid line, dotted line, and one-dot chain line), and the light distribution characteristic of an emergency lighting fixture using mini-halogen is shown by a two-dot chain line. Yes.

As shown by the two-dot chain line in FIG. 12, the emergency lighting fixture using the mini-halogen distributes light so that the light intensity value reaches a peak near a light distribution angle of 60 °.
Accordingly, the light distribution control unit 311 diffuses light in the vicinity of the vertical direction (directly below (0 °)) from the light emitting surface of the LED 111, and the light intensity value also peaks at a light distribution angle of about 60 ° in the light source unit 300. So that the light distribution. The light distribution control unit 311 diffuses light in the vicinity of the vertical direction (directly downward direction (0 °)) from the light emitting surface (light emitting region 1112), for example, light in a range of θ = 25 ° from the direct downward direction (0 °). By providing the light distribution control unit 311 in the range of θ = 25 ° from the light emitting surface (light emitting region 1112) directly below (0 °), the light source unit 300 is as shown by a solid line, a dotted line, and a one-dot chain line in FIG. Predetermined light distribution characteristics can be obtained.
Here, three types of light distribution characteristics indicated by a solid line, a dotted line, and a one-dot chain line in FIG. 12 are shown as the target light distribution characteristics, but the target light distribution characteristics have a specific angle θ (about 25 °). The light intensity gradually rises from), and the relative light intensity becomes 100% around 60 °.

  The specific angle θ is preferably around 25 °, but may be in the range of 20 ° to 30 °, for example. It is preferable that the individual region 3112 or the opposing region 3111 is set so that a desired light distribution is realized in the lighting fixture, and the light distribution control member 312 is attached to the set individual region 3112 or the opposing region 3111. .

In the light distribution control unit 311, the light distribution control unit 311 is formed by printing and adhering diffusion ink (light distribution control member 312) on the light distribution cover unit 310 in a substantially circular shape.
The light from the LED 111 is directly emitted from a portion where the light distribution control member 312 of the light distribution cover unit 310 is not attached and the light distribution control light diffused through the light distribution control unit 311. Irradiate a predetermined range.

Further, although the example in which the light distribution control unit 311 is formed by printing the diffusion ink has been described, the light distribution control unit 311d in which gradation is formed by the density of printing without using the diffusion ink may be used.
The light distribution control unit 311d that forms the gradation is, for example, such that the print density in the vertical direction from the light emitting surface of the LED 111 is dark and the light transmittance is low, and as the light distribution spreads, the print density is thin and the light transmittance is high. It adjusts the printing density of the light distribution control unit 311d.

Further, the light distribution control unit 311e may be formed using a light non-transparent member as the light distribution control member 312 so that only a predetermined light distribution angle is irradiated.
For example, a light distribution controller 311e (non-transparent member) having a substantially circular shape in the vicinity of the vertical direction from the light emitting surface (light emitting region 1112) of the LED 111 may be formed by aluminum vapor deposition or the like.
The light distribution control unit 311e formed by aluminum deposition reflects the light from the LED 111 toward the LED substrate 113, so that the light distribution control unit 311e is provided with a reflection function inside the frame cylinder unit 121 and the substrate 112. The light reflected by the light is irradiated at a predetermined angle, the amount of light irradiated from the light distribution cover part 310 can be increased, and the light irradiation efficiency can be improved.

  As described above, the light distribution control unit 311 may be provided so that the light distribution control unit 311 is attached to the front surface of each LED 111 as shown in FIG. Alternatively, as shown in FIG. 11B, a plurality of LEDs 111 may be responded by a single light distribution control unit 311.

  In the present embodiment, the light distribution control unit 311 (light distribution control member 312) is attached to the substantially disc-shaped light distribution cover unit 310 formed of a non-combustible member, so that a lens or the like is not used. The LED 111 can be controlled to a predetermined light distribution.

  In addition, although the thing by printing and vapor deposition was demonstrated as an attachment means, the attachment means which affixes the light distribution control part 311 formed from a diffusion sheet etc. to the light distribution cover part 310 may be sufficient.

  As described above, according to the lighting apparatus according to the present embodiment, the light distribution control member is attached to the light distribution cover part made of a non-combustible member having transparency such as glass, thereby providing fire resistance. It is possible to provide an emergency lighting apparatus that is provided with reduced costs.

  Further, in Embodiments 1 to 3, the description has been made using the column-mounted emergency lighting fixture with a mounted portion embedded, but it may be directly attached to the mounted portion. Further, the shape of the luminaire may not be a cylindrical shape, and Embodiments 1 to 3 can be applied to luminaires having other shapes such as a square shape and an elliptic cylinder shape.

  In the first to third embodiments, the emergency lighting fixture in which the fixture main body 10 includes the emergency power supply unit 12 has been described. However, the general lighting fixture that does not include the emergency power supply unit 12 is described. It may be.

  Further, in the first to third embodiments, the case where the light source is the LED substrate 113 on which a plurality of LEDs 111 are mounted has been described, but an LED light source such as a COB (chip on board) may be used. An organic EL may be used as a substitute for the LED substrate 113.

  Moreover, although Embodiment 1 to Embodiment 3 demonstrated that the structure part was formed with the nonflammable material, even if it is not a nonflammable material, what is necessary is just the material which satisfy | fills the standards regarding the fire resistance according to a use. An emergency lighting apparatus having fire resistance can be obtained by forming the constituent part with a material satisfying the standards related to fire resistance according to the application.

  As mentioned above, although embodiment of this invention was described, you may implement combining 2 or more of these embodiment. Alternatively, one of these embodiments may be partially implemented. Alternatively, two or more of these embodiments may be partially combined. In addition, this invention is not limited to these embodiment, A various change is possible as needed.

  DESCRIPTION OF SYMBOLS 1 Lighting fixture, 10 Appliance main-body part, 11 Lighting device part, 12 Emergency power supply part, 13 Inspection switch part, 14 Opening part, 15 Instrument collar part, 16 Mounting part, 17 Holding part, 18 Light source fixing claw part, 100 Light source Part, 101 outer surface, 102 inner surface, 110 light source unit part, 111 LED, 112 substrate, 113 LED substrate, 114 lens part, 115 cover part, 120 frame part, 121 frame cylinder part, 122 frame front part, 123 frame , 130 Fireproof lid, 130c Lid, 131 Substrate mounting recess, 132 Lid, 140 Fixed spring, 141 Coil, 142 Spring arm, 160 Screw, 200 Light source, 210 Radiation lid, 211 Heat dissipation body , 212 Substrate mounting recess, 213 Radiation side, 214 Spring notch, 215 Inclined, 300 Light source, 310 Light cover part, 311 light distribution control part, 312 light distribution control member, 1111 arrangement area, 1112 light emitting area, 1121 mounting surface, 1122 back surface, 1211 frame cylinder part front part, 1212 frame cylinder part rear part, 1213 step part, 1221 inside A collar part, 1301 A cover side part, 3101 Cover opposing surface, 3111 opposing area | region, 3112 individual area | region.

Claims (7)

An instrument body having an opening forming an instrument opening;
A light-emitting substrate on which a light-emitting element is mounted on a mounting surface, the light-emitting substrate being disposed in the opening so that the mounting surface faces the outside of the device body from the device opening, and disposed inside the device body And a light source module provided with a heat radiating part that contacts the back surface of the mounting surface and contacts the inner surface of the device body. The heat dissipation part is
A flat plate-shaped substrate abutting portion that is a metal plate and abuts against the back surface of the mounting surface; and an inner surface abutting portion that is formed continuously from the substrate abutting portion and abuts against the inner surface. The lighting fixture according to claim 1, wherein   The lighting fixture according to claim 2, further comprising an inclined portion formed between the substrate contact portion and the inner surface contact portion. The light source module is
A cylindrical tube portion whose both ends are open, the tube portion storing the light emitting substrate therein so that the mounting surface faces one opening;
A collar provided on the periphery of the one opening of the cylindrical portion,
The heat dissipation part is
Abutting on the back surface of the mounting surface of the light emitting substrate housed in the cylindrical portion, and attached to the cylindrical portion so as to close the other opening of the cylindrical portion,
The light source module is
The lighting fixture according to any one of claims 1 to 3, wherein the flange portion closes a gap between the cylindrical portion inserted into the fixture opening and the opening portion.   The lighting device according to claim 4, wherein the tube portion is formed of a non-combustible material.   The lighting fixture according to claim 1, wherein the fixture main body and the heat radiating portion are made of a non-combustible material. It is the lighting fixture in any one of Claims 1-6, Comprising: The lighting fixture by which the lighting device which lights the said light source module was arrange | positioned inside,
A power supply unit disposed inside the appliance main body, the power supply unit being charged by an AC power supply and supplying power to the lighting device when the supply of power from the AC power supply is stopped Emergency lighting equipment characterized by.

Images