JP5816859B2 - Emergency lighting equipment - Google Patents

Description

  The present invention relates to an emergency lighting fixture.

  Conventionally, emergency lighting equipment for stair landings that illuminate stairs and landings that serve as emergency evacuation passages are disclosed in, for example, Patent Document 1. The emergency lighting apparatus described in Patent Document 1 is attached to the wall surface of a stair landing, has a front translucent cover and a lower translucent cover, includes a straight tube fluorescent lamp, and emits light from the fluorescent lamp. A reflecting plate is provided. Since this reflector is formed to increase the brightness of the front translucent cover and the lower translucent cover, respectively, the light of the fluorescent lamp is effectively distributed to the upstairs and downstairs, and the illuminance of the upstairs and downstairs Can be increased.

Japanese Utility Model Publication No. 63-99821

  By the way, although the emergency lighting fixture of the said patent document 1 uses the fluorescent lamp as a main light source, in recent years, the light emitting diode with low power consumption and a long lifetime is used as a light source of an emergency lighting fixture. Proposed. When a light emitting diode is used as a main light source, there is a possibility that the life of the light emitting diode is deteriorated due to heat generated by light emission of the light emitting diode. Therefore, as a countermeasure, it is conceivable that the heat generated by the light emitting diode is released to the metal instrument body.

  On the other hand, the emergency lighting apparatus includes an emergency light source including a halogen lamp that is turned on in an emergency such as a power failure, in addition to the main light source that is turned on in a normal state. This emergency light source is supplied with lighting power by a secondary battery provided in the instrument body. Further, the secondary battery is normally charged with electric power supplied from a lighting device that turns on the main light source.

  Such a secondary battery is generally not suitable for use in a high-temperature environment, and is desirably used at, for example, 45 degrees or less. However, in an emergency lighting fixture that uses a light-emitting diode as a main light source, as described above, heat is generated due to light emission of the light-emitting diode, so that the temperature of the secondary battery rises due to the heat trapped inside the fixture body. This causes a problem that the life of the battery is deteriorated. Of course, it is conceivable that the heat generated by the light-emitting diode is released to the metal instrument body as described above, but this alone is not sufficient to prevent the secondary battery from rising in temperature.

  An object of this invention is to provide the emergency lighting fixture which can prevent the temperature rise of the secondary battery which is a power supply of an emergency light source.

An emergency lighting apparatus of the present invention includes a main light source including one or more light emitting diodes, a lighting device that converts power supplied from an external power source and supplies lighting power to the main light source, a secondary battery, An emergency light source that is turned on when a power is supplied from the secondary battery when the external power supply fails, and a main body that houses the main light source, the lighting device, the secondary battery, and the emergency light source. The instrument body has a vent hole that introduces outside air into the instrument body and forms a ventilation path through which the outside air passes through the vicinity of the secondary battery and is released to the outside of the instrument body. A spacer for securing a gap between a wall surface on which the instrument main body is installed and the instrument main body is provided on the opposite side of the instrument main body from the side on which the main light source emits light, and the vent hole Is the spacer Characterized in that it is provided.

  In this emergency lighting fixture, the secondary battery is held by a battery holder attached to the inner surface of the fixture body, and the battery holder is made of a material having a thermal conductivity smaller than that of the fixture body. It is preferable.

  The present invention has an effect of preventing an increase in temperature of a secondary battery that is a power source of an emergency light source.

It is a figure which shows embodiment of the emergency lighting fixture which concerns on this invention, (a) is a front view, (b) is the perspective view seen from back, (c) is a bottom view, (d) is sectional drawing. It is. It is a whole perspective view of the emergency lighting fixture same as the above. It is a disassembled perspective view of the emergency lighting fixture same as the above.

  Hereinafter, an embodiment of an emergency lighting apparatus according to the present invention will be described with reference to the drawings. In the following description, the top, bottom, left, and right in FIG. 1A are defined as the top, bottom, left, and right directions, the front side of the paper is defined as the front direction, and the back side of the paper is defined as the rear direction. This embodiment illuminates stairs and landings that serve as emergency evacuation passages, and as shown in FIGS. 1A to 1D, an instrument body 1, a cover 2, an LED unit 3, , A lighting device 4, a halogen lamp 5, a secondary battery 6, and a mounting plate 7.

  The instrument main body 1 is made of aluminum die casting, and includes a main portion 1A made of a plate material having a U-shaped cross section and side portions 1B and 1C made of a long plate material. The instrument body 1 is formed into a box having an open front as shown in FIG. 3 by connecting the main part 1A and the side parts 1B and 1C by, for example, screwing. An LED unit 3, a lighting device 4, a halogen lamp 5, and a secondary battery 6 are housed inside the appliance body 1. As shown in FIG. 1B, a spacer 10 having an outer peripheral dimension that is slightly smaller than the outer peripheral dimension of the instrument main body 1 is integrally formed at the rear part of the instrument main body 1 so as to protrude rearward. The spacer 10 has a function of ensuring a gap between the wall surface and the instrument body 1 when the instrument body 1 is installed on a wall surface (not shown). The spacer 10 is provided with a plurality of ventilation holes 11 cut out over the upper surface and the rear surface, the lower surface and the rear surface, respectively. These vent holes 11 allow the inside and the outside of the instrument body 1 to communicate with each other. Further, as shown in FIG. 1B, positioning ribs 12 for positioning the mounting plate 7 project rearward on the rear surface of the spacer 10 by coming into contact with left and right sides and a lower side of the mounting plate 7 which will be described later. It is integrally formed in a shape.

  As shown in FIG. 1C, a rectangular opening 13 is provided on the lower surface of the main part 1 </ b> A of the instrument body 1, and light from a halogen lamp 5 described later is emitted downward from the opening 13. It has become so. Further, as shown in FIG. 3, mounting grooves 14 that are recessed backward along the longitudinal direction are provided on the front surfaces of the side portions 1B and 1C of the instrument body 1, respectively. An insertion piece 21 </ b> A of the cover 2 described later is inserted into these mounting grooves 14. In addition, as shown in FIG. 3, circular screw holes 15 are provided on the front surfaces of the side portions 1B and 1C of the instrument body 1 at both upper and lower ends.

  The cover 2 is made of, for example, a translucent material such as acrylic resin, and a main plate 20 that faces the front surface of the instrument body 1 and a pair of side plates 21 that protrude rearward from the left and right side edges of the main plate 20 are integrally formed. The light from the LED unit 3 is diffused to illuminate the front. An L-shaped insertion piece 21 </ b> A that protrudes backward is integrally formed at the rear end of each side plate 21. The cover 2 can be attached to the instrument main body 1 by inserting these insertion pieces 21A into the upper or lower ends of the mounting grooves 14 of the instrument main body 1 and sliding them (see FIG. 2). In addition, in the state which attached the cover 2 to the instrument main body 1, the upper part and lower part of the space between the instrument main bodies 1 are open | released outside. Thereby, since the light reflected from the inner surface of the cover 2 out of the light from the LED unit 3 is emitted to the upper and lower spaces, the presence of the light source can be made inconspicuous. In addition, the heat generated by the LED unit 3 does not stagnate inside the cover 2 and can easily escape to the outside.

  The LED unit 3 is a main light source used in a normal time when a commercial power source (not shown) as an external power source is not interrupted. As shown in FIG. 1A, the LED unit 3 includes a light emitting unit 30 having a plurality of light emitting diodes 30 </ b> A that emit light forward, a reflecting plate 31, and mounting brackets 32 and 33. The reflection plate 31 is formed in a rectangular plate shape having substantially the same dimensions as the front surface of the instrument body 1, and the light emitting unit 30 is provided at the center thereof. The reflection plate 31 has a function of reflecting the light reflected by the cover 2 and returning to the front again, for example. In addition, as shown in FIG. 3, circular mounting holes 31A are provided at the four corners of the reflecting plate 31, respectively.

  As shown in FIG. 3, each of the mounting brackets 32 and 33 is made of a long metal plate. Circular attachment holes 32A and 33A are provided at both upper and lower ends of the attachment fittings 32 and 33, respectively. Therefore, the mounting holes 32A and 33A of the mounting brackets 32 and 33 and the screw holes 15 of the side portions 1B and 1C are overlapped with the mounting holes 31A of the reflecting plate 31 so as to sandwich the reflection plate 31, and screwed by the mounting screws S1. By stopping, the LED unit 3 and the side portions 1B and 1C are integrally formed. That is, the LED unit 3 is attached and fixed to the front surface of the instrument body 1.

  The lighting device 4 includes a power supply circuit (not shown) including a step-down chopper circuit that converts an AC voltage from a commercial power source into a DC voltage and supplies the lighting power to the LED unit 3, and a power failure detection that detects a power failure of the commercial power source. A circuit (not shown). In addition, the lighting device 4 is supplied with power from the power source circuit and is charged with the secondary battery 6 and the secondary battery 6 is supplied with power when the power failure is detected by the power failure detection circuit. And a lighting circuit for lighting the halogen lamp 5. Since each of the above circuits is conventionally known, detailed description thereof is omitted here.

  The halogen lamp 5 is an emergency light source used at the time of a power failure of the commercial power source, and emits light downward through the opening 13 of the appliance body 1. As shown in FIGS. 1 (c) and 3, the halogen lamp 5 is exposed to the outside through a hole 50 </ b> A provided in the reflector 50 disposed on the lower surface inside the instrument body 1.

  The reflector 50 is formed in a square frustum shape as shown in FIG. 3, and the hole 50A for allowing the halogen lamp 5 to face the outside is provided on the upper surface thereof as described above. Therefore, during a power failure of the commercial power supply, the light from the halogen lamp 5 directly illuminates the space below, and the light diffused from the halogen lamp 5 is reflected by the inner surface of the reflector 50 and emitted downward. Further, the reflector 50 has a hole for exposing a monitor lamp 51 for displaying the charging state of the secondary battery 6 and an inspection switch 52 for inspecting the operation of the emergency light source in an artificial power failure state. 50B and 50C are also provided. Since the monitor lamp 51 and the inspection switch 52 are conventionally well-known, detailed description is omitted here.

  The secondary battery 6 is a rechargeable emergency power source that becomes a power source at the time of a power failure of a commercial power source, and is composed of, for example, a nickel / hydrogen rechargeable battery or a nickel / cadmium rechargeable battery. The secondary battery 6 is kept in a fully charged state by a charging circuit of the lighting device 4 using a charging method such as trickle charging, for example. In the present embodiment, the secondary battery 6 is charged by the charging circuit of the lighting device 4, but the secondary battery 6 may be charged by another route that does not go through the lighting device 4. The secondary battery 6 is detachably attached to a battery holder 60 attached to the rear surface inside the instrument body 1.

  As shown in FIG. 3, the battery holder 60 includes a holder main plate 61 attached to the rear surface inside the instrument main body 1 and a pair of holding pieces 62 provided on both upper and lower ends of the holder main plate 61 to sandwich the secondary battery 6. It is formed integrally. Each of the holding pieces 62 is curved so as to protrude outward, and is biased so as to approach each other. Therefore, when the secondary battery 6 is pushed from the front so as to come into contact with the holder main plate 61, each holding piece 62 is bent outward by being pushed by the secondary battery 6, so that each holding piece 62 is restored to its original state. The secondary battery 6 is held in the battery holder 60 by the urging force to be applied.

  The battery holder 60 is preferably formed of a metal material (for example, iron or the like) having a lower thermal conductivity than the aluminum die casting that constitutes the instrument body 1. In this case, the heat generated by the LED unit 3 is less likely to be conducted to the battery holder 60 via the instrument body 1, so that the temperature increase of the secondary battery 6 can be more suitably prevented.

  Furthermore, in the present embodiment, a pair of screw holes 63 are provided on the diagonal line of the holder main plate 61, and an attachment screw (not shown) is inserted into these screw holes 63 and screwed to the instrument body 1. A battery holder 60 is attached to the instrument body 1. For this reason, since the heat transfer path from the instrument body 1 to the battery holder 60 is limited to two places screwed with the mounting screws, the effect of suppressing the temperature rise of the secondary battery 6 can be enhanced.

  As shown in FIG. 1B, the mounting plate 7 is formed in a rectangular plate shape that is long in the vertical direction, and a power line (not shown) connected to a commercial power source is inserted into the center of the mounting plate 7. The circular power line hole 70 is provided. Further, the mounting plate 7 has a dome-shaped mounting hole 72 into which a mounting screw (not shown) for mounting on a switch box (not shown) embedded in the wall is inserted, and an elliptical shape. A pair of mounting holes 73 are provided on both upper and lower sides across the power line hole 70. Further, the attachment plate 7 is provided with a pair of circular attachment holes 71 into which assembly bolts (not shown) for attachment to the instrument body 1 are inserted.

  Hereinafter, the assembly method of the present embodiment will be briefly described. First, the mounting plate 7 is mounted and fixed to the switch box by inserting mounting screws into the mounting holes 72 and 73 of the mounting plate 7 and screwing them to the switch box. Next, the mounting plate 7 is fitted into the part surrounded by the positioning rib 12 on the rear surface of the spacer 10, the assembly bolt is inserted into each mounting hole 71, and tightened with a nut from the inside of the main part 1 </ b> A of the instrument body 1. The main part 1 </ b> A of the instrument body 1 is attached and fixed to the plate 7. And after attaching and fixing the LED unit 3 to the front surface of the instrument body 1 as described above, the insertion piece 21A of the cover 2 is inserted into the upper end or the lower end of each mounting groove 14 of the instrument body 1 and slid. This embodiment is completed by attaching 2 to the instrument main body 1.

  As described above, in the present embodiment, the plurality of vent holes 11 that communicate the inside and the outside of the instrument main body 1 are provided in the upper and lower portions of the spacer 10 of the instrument main body 1. As shown by the arrows in FIG. 1 (d), outside air is introduced into the instrument main body 1 by these vent holes 11, and the outside air passes through the vicinity of the secondary battery 6 and is released to the outside of the instrument main body 1. A ventilation path is formed. Therefore, the secondary battery 6 can be cooled by the convection of the outside air passing through the lower ventilation hole 11, the instrument main body 1, and the upper ventilation hole 11, thereby preventing the temperature of the secondary battery 6 from rising. it can.

  In the present embodiment, the spacer 10 having an outer peripheral dimension that is slightly smaller than the outer peripheral dimension of the instrument main body 1 is formed at the rear part of the instrument main body 1, and the vent hole 11 is provided in the spacer 10. For this reason, when this embodiment is seen from the front, since the ventilation hole 11 is hidden, it can improve appearance. Furthermore, since the vent hole 11 is provided over the upper surface, the rear surface, the lower surface and the rear surface of the spacer 10, the function as the vent hole 11 can be achieved as long as any one of the surfaces is open. Can be difficult to block.

DESCRIPTION OF SYMBOLS 1 Instrument body 10 Spacer 11 Vent 3 LED unit (main light source)
30A Light-emitting diode 4 Lighting device 5 Halogen lamp (emergency light source)
6 Secondary battery 60 Battery holder

Claims (2)

A main light source including one or more light emitting diodes, a lighting device that converts power supplied from an external power source to supply lighting power to the main light source, a secondary battery, and the secondary power source when the external power source fails An emergency light source that is turned on when a lighting power is supplied from a battery; and an instrument main body that houses the main light source, the lighting device, the secondary battery, and the emergency light source. Is provided in the instrument body, and a vent hole is provided that forms a ventilation path through which the outside air passes through the vicinity of the secondary battery and is discharged to the outside of the instrument body .
A spacer for securing a gap between the wall surface on which the instrument main body is installed and the instrument main body is provided on the opposite side of the instrument main body from the side where the main light source emits light, An emergency lighting apparatus provided on a spacer . The said secondary battery is hold | maintained at the battery holder attached to the inner surface of the said instrument main body, and the said battery holder consists of material which has a thermal conductivity smaller than the thermal conductivity of the said instrument main body. The emergency lighting apparatus according to 1 .

Images