JP5632719B2 - Emergency lighting equipment - Google Patents

Description

  The present invention relates to an emergency lighting apparatus that is turned on when a commercial power supply is interrupted.

  Traditionally, emergency lighting has been used to ensure the illuminance of evacuation passages in buildings, etc., in order to prevent evacuation from becoming difficult due to the inability to grasp the surrounding conditions due to a power failure of a commercial power source that occurs in the event of a disaster such as a fire or earthquake. Equipment is provided.

  This type of emergency lighting fixture includes a power source built-in type emergency lighting fixture in which a light source unit and a storage battery (for example, a nickel-hydrogen secondary battery) functioning as an emergency standby power source are incorporated in the fixture body, There is an emergency lighting fixture with a separate power source that receives power from an external standby power source (for example, an emergency DC power supply device) in the event of a power failure of the commercial power source and lights the light source unit of the fixture body.

  Here, hundreds to thousands of emergency lighting fixtures with separate power sources are installed in special facilities such as hospitals, movie theaters, department stores, and large-scale facilities such as office buildings and condominiums. Each emergency lighting fixture is electrically connected to an external standby power source by a refractory wire or the like in order to turn on the light source section. The emergency lighting apparatus with separate power supply is configured such that the standby power supply is immediately activated at the time of a power failure of the commercial power supply and receives power supply from the standby power supply via a refractory wire for a predetermined time (for example, 30 minutes). It is possible to light up.

  Unlike the emergency lighting fixture with built-in power source, the emergency lighting fixture with a separate power source does not have a built-in storage battery in the main body of each emergency lighting fixture. Therefore, unlike the emergency lighting fixture with a built-in power source, the emergency lighting fixture with a separate power supply does not require the work of taking out and replacing the storage battery individually from each emergency lighting fixture with the life of the storage battery. In the case of an emergency lighting apparatus with a separate power source, it is only necessary to perform maintenance and inspection of an external standby power supply common to the emergency lighting apparatus. For this reason, emergency lighting fixtures with separate power supplies have hundreds to thousands of individual emergency lighting fixtures, compared to the case where hundreds or thousands of emergency lighting fixtures with built-in power supplies are installed. There is an advantage that it is possible to save the trouble of inspecting and replacing each storage battery of the lighting equipment for lighting.

  By the way, emergency lighting fixtures generally use incandescent bulbs such as halogen bulbs and silica bulbs as a light source. Therefore, the emergency lighting apparatus consumes a large amount of power (for example, 40 W for a halogen light bulb). When installing hundreds to thousands of emergency lighting fixtures, the standby power supply that is electrically connected to the emergency lighting fixtures with separate power supplies requires a relatively large power capacity. The initial cost of installing emergency lighting fixtures tends to be high. In addition, a standby power supply with a large power supply capacity that is electrically connected to an emergency lighting apparatus separately installed in the power supply has a problem that it is difficult to secure a place for installing the standby power supply because the size of the standby power supply itself is large. Arise.

  Further, when the emergency lighting fixture is installed on the ceiling material, the emergency lighting fixture is required to be able to make the horizontal illuminance of the floor surface within a predetermined radius directly below the fixture main body equal to or higher than the predetermined illuminance. In an emergency lighting fixture using a halogen light bulb or the like for the light source part, a reflecting mirror is required that has a low on-axis luminous intensity irradiated from the fixture main body and can obtain a light distribution characteristic that the luminous intensity increases toward the periphery. . In addition, an emergency lighting fixture using a halogen light bulb or the like for the light source unit needs a socket so that it can be periodically replaced in consideration of the life of the halogen light bulb or the like. For this reason, it is difficult to reduce the height of the main body of the emergency lighting fixture separately from the power source, even though the storage battery is not built in, unlike the emergency lighting fixture with a built-in power source. There is.

  By the way, in recent years, lighting fixtures have been developed that include LEDs having a long life, small size, and low power consumption as a light source compared to halogen light bulbs and the like. Here, although it is not an emergency lighting fixture, as a lighting fixture provided with LED as a light source part, for example, as shown in FIG. 4, a fitting hole into which a lamp device 30 and a cap part 35 of the lamp device 30 are inserted. There is known a downlight having a socket device 13 provided with a flat plate portion 17 with which the socket device 13 abuts and a fixture body 12 provided with a reflecting plate portion 18 connected to the flat plate portion 17 (for example, Patent Document 1). ).

  Here, the lamp device 30 includes a plurality of LEDs 32 as a light source unit, a wiring board 48 on which the LEDs 32 are mounted on one surface side, a circuit board 49 on which a circuit component 50 of a lighting circuit for lighting the LEDs 32 is mounted, A flat disk-shaped metal part 39 that closely contacts the other surface 36 side of the wiring board 48 and the circuit board 49 side is provided, and the metal part 39 is screwed to the lamp device main body 31 by a screw 42 that is a heat conduction connecting means. Yes.

  In the lamp device 30 of the above-described Patent Document 1, the metal component 39 is in contact with the contact surface 41 of the outer peripheral portion 40 that is the metal portion 38 of the lamp device main body 31. In the lamp device 30, the large-diameter portion 47 of the lamp pin 45 electrically connected to the circuit board 49 via the lead wire 51 is inserted into the connection hole of the socket device 13 and fixed, and is electrically connected. At this time, the lamp device 30 is in contact with the socket device 13 at the contact surface 43. The lamp pin 45 is electrically insulated from the lamp device main body 31 by an insulating material 46. The lamp device main body 31 of the lamp device 30 is made of aluminum die casting for heat dissipation.

  When the downlight of the above-mentioned patent document 1 is applied to an emergency lighting fixture, the emergency lighting fixture includes an LED 32 as a light source unit, so that the light source unit is compared with a halogen light bulb or the like in a general emergency lighting fixture. It is possible to reduce the time and effort of replacement accompanying the life of the battery. Moreover, the emergency lighting fixture to which the downlight of patent document 1 is applied does not need to use a reflector for a halogen bulb that matches the light distribution characteristics of the emergency lighting fixture. Therefore, when the downlight using the LED 32 of Patent Document 1 as a light source unit is applied to an emergency lighting fixture with a separate power supply, the emergency lighting fixture can be downsized.

  Here, in the lamp device 30, the temperature of the LED 32 itself becomes high due to heat generated by the lighting of the LED 32 serving as a light source unit. The LED 32 has a characteristic that, when the temperature of the LED 32 itself becomes too high, the life of the LED 32 is rapidly shortened due to thermal degradation. In the downlight of the above-mentioned patent document 1 provided with the LED 32 as the light source part, in order to make the life of the LED 32 a long life (for example, 20,000 hours to 40,000 hours), a heat dissipation structure that lowers the temperature of the LED 32 itself is provided. . That is, in the lamp device 30 of Patent Document 1, a flat disk-shaped metal part 39 in which the heat generated by the heat generated by the LED 32 is brought into contact with the wiring board 48 and the screw 42 that screws the metal part 39 to the lamp device main body 31 are screwed. Thus, heat is dissipated to the lamp device body 31 side made of aluminum die casting. Thereby, the lamp device 30 of Patent Document 1 ensures the lifetime of the LED 32 by maintaining the temperature of the LED 32 of the light source unit below a predetermined allowable temperature.

JP 2010-129488 A

  However, in the lamp device 30 provided with the LED 32 as the light source unit of Patent Document 1 described above, the lamp device main body 31 made of aluminum die casting is used for heat dissipation, and thus there is a problem that the manufacturing cost increases. Further, since the lamp device 30 releases the heat from the LED 32 to the outside, a structure for conducting the heat from the LED 32 to the lamp device main body 31 through the metal part 39 and the screw 42 is required. In particular, in order to efficiently conduct heat from the LED 32 to the lamp device main body 31 side, attention must be paid to screw fastening of the screw 42. For this reason, the lamp device 30 has a problem that the structure is complicated, and it takes time and effort to manufacture, resulting in an increase in manufacturing cost.

  In particular, emergency lighting fixtures with separate power supplies are installed in hundreds or thousands of units at a time in large-scale facilities, etc., with a simpler structure and smaller size without increasing manufacturing costs. What is possible is desired. For this reason, it is not sufficient to simply use a downlight having an LED as a light source unit as a configuration of an emergency lighting fixture with a separate power supply.

  The present invention has been made in view of the above reasons, and an object of the present invention is to provide a power source-separated emergency lighting apparatus capable of reducing power consumption, downsizing, and reducing manufacturing costs. .

The emergency lighting apparatus of the present invention is an emergency lighting apparatus of a power supply type that receives power from an external standby power supply and lights a light source unit provided in the apparatus body in an emergency, and an LED is used as the light source unit. A wiring board on which the LED is mounted on one surface side, a circuit board on which circuit components of a lighting circuit for lighting the LED are mounted, the circuit board is housed inside, and the outer surface and the wiring on the outside An outer peripheral surface of the resin case having a resin case that holds the wiring substrate facing the other surface side of the substrate, and an instrument body that includes the opening that exposes the light source unit and accommodates the resin case If, between the inner peripheral surface of the instrument body, and wherein the Rukoto which have a gap.

  In this emergency lighting apparatus, the resin case includes a holding portion having a protrusion protruding in a direction parallel to the one surface from a standing portion standing from the one surface side of the resin case, and the protrusion of the holding portion It is preferable that the wiring board is held with the edge of the wiring board being sandwiched between the wiring board and the one surface.

In this emergency lighting apparatus, the wiring board includes a connector connecting portion electrically connected to the LED on the other surface side of the wiring board, and is accommodated in the connector connecting portion and the resin case. It is preferable that a connector provided on the circuit board and electrically connected to the lighting circuit is electrically and mechanically connected through a through hole of the resin case .
In this emergency lighting apparatus, it is preferable that the apparatus main body and the resin case are integrated by a holding frame inserted in the gap.

  The emergency lighting apparatus of the present invention has an effect that it is possible to provide an emergency lighting apparatus with a separate power source that can achieve low power consumption, downsizing, and reduction in manufacturing cost.

It is a schematic sectional drawing of the emergency lighting fixture of Embodiment 1. FIG. It is a schematic sectional drawing of the emergency lighting fixture of Embodiment 2. FIG. It is a schematic sectional drawing of the emergency lighting fixture of Embodiment 3. It is a schematic sectional drawing of the conventional lighting fixture.

(Embodiment 1)
Hereinafter, the emergency lighting fixture 10 of a separate power supply type according to this embodiment will be described with reference to FIG. In addition, the same number is attached | subjected to the same member in the figure.

  The emergency lighting fixture 10 of the present embodiment is supplied with electric power from an external standby power supply (not shown) (for example, an emergency DC power supply device in which a plurality of storage batteries are connected in series and parallel) in an emergency. The light source unit 3 provided in the instrument body 1 is turned on. The emergency lighting fixture 10 is similar to the inner peripheral surface 1e of the instrument main body 1 so that the instrument main body 1 as a bottomed cylindrical outer shell and the instrument main body 1 can be accommodated in the outer peripheral surface 2c. A cylindrical resin case 2 that is slightly smaller than the instrument body 1 is provided. In addition, the resin case 2 of the emergency lighting fixture 10 includes a wiring board 5 made of a glass epoxy resin material in which a plurality of (here, three) LEDs 3a constituting the light source unit 3 are mounted on the one surface 5a side. The wiring board 5 is held with the surface 5b side facing the outer surface 2f of the resin case 2.

  A circuit board 4c on which a circuit component 4 of a lighting circuit for lighting the LED 3a is mounted using solder or the like is accommodated in the inside 2g of the resin case 2. Here, the circuit board 4 c housed in the inside 2 g of the resin case 2 is arranged in the vertical direction with respect to the wiring board 5 held facing the one surface 2 f outside the resin case 2. The emergency lighting fixture 10 includes a wiring pattern (not shown) on the surface 5a side on which the LEDs 3a are mounted on the wiring board 5, and a circuit board 4c side on which circuit components 4 constituting a lighting circuit of the LED 3a are mounted. Are electrically connected by a wiring cord 15 a through a through hole (not shown) penetrating in the thickness direction of the resin case 2. The inside 2g of the resin case 2 houses a mounting board 8c on which a terminal block 8 that can be electrically connected to a refractory wire (not shown) that receives power from a standby power supply is mounted in an emergency. Yes. The terminal block 8 is electrically connected to a mounting pattern (not shown) on the mounting substrate 8c using solder or the like. The mounting pattern of the mounting board 8c is electrically connected to the circuit board 4c side by the connection cord 8a. The terminal block 8 is electrically connected to the LED 3a via the connection cord 8a, the circuit board 4c, and the wiring cord 15a in order to supply power to the LED 3a.

  In the emergency lighting device 10, the circuit board 4 c and the mounting board 8 c are arranged facing each other in the inside 2 g of the resin case 2, and are fixed by fixing portions (not shown) of the resin case 2, respectively.

  The wiring substrate 5 is held by the resin case 2 by screwing the end portion side of the wiring substrate 5 to the one surface 2f side of the outer side of the resin case 2 with a screw as a holding portion 2b.

  As a result, the emergency lighting fixture 10 of the present embodiment includes a wiring board 5 in which the LED 3a is mounted on the one surface 5a side on the one surface 2f of the outer side of the resin case 2, and a lighting circuit housed in the inside 2g of the resin case 2. The light source unit 11 is formed by integrating the circuit component 4 and the mounting substrate 8c on which the terminal block 8 is mounted with the resin case 2. Moreover, the emergency lighting fixture 10 accommodates the light source unit 11 in the inside of the fixture main body 1 from the opening part 1a of the fixture main body 1 so that light can be taken out from the light source portion 3.

  In addition, the emergency lighting fixture 10 is provided with a frame body portion 6 including a lens 9 having a predetermined light distribution from the light emitted from the LED 3 a so as to cover the opening 1 a of the fixture body 1. ing. The frame body portion 6 has a disk shape and is provided with an opening 6a in the center. A pair of holding projections 6b for holding the lens 9 is provided at the inner end of the opening 6a of the frame body 6. The frame body portion 6 holds the flange portion 9 a provided on the outer peripheral portion of the lens 9 with a pair of holding protrusions 6 b and 6 b provided along the outer periphery of the opening 6 a of the frame body portion 6. The frame body portion 6 has a cylindrical shape that protrudes from the frame body portion 6 so as to surround the lens 9 in the gap between the resin case 2 accommodated in the device body 1 and the device body 1 slightly thicker than the gap. The holding frame 6c is inserted and integrated with the instrument body 1 by the elastic force of the resin case 2 and the holding frame 6c.

  That is, the emergency lighting fixture 10 of the present embodiment includes a bottomed cylindrical fixture body 1 and a frame body portion 6 that holds a lens 9 for irradiating light from the LED 3a to the outside with a predetermined light distribution. The resin case 2 of the light source unit 11 is fixed inside the instrument body 1. It should be noted that a plurality of reflecting portions (not shown) are provided on one surface 5a of the wiring board 5 in order to individually control the light distribution of the light emitted from the plurality of LEDs 3a serving as the light source portion 3 of the emergency lighting fixture 10. It may be provided separately on the side. The emergency lighting apparatus 10 including the LED 3a as the light source unit 3 is small in size because the LED 3a itself is small, even if the light source unit 3 includes a lens 9 or a reflection unit, as compared with a light source unit using a halogen bulb or the like. It becomes possible to make it relatively easy.

  The appliance main body 1 of the emergency lighting fixture 10 includes an outer collar portion 1b extending outward from the opening edge of the opening 1a of the appliance main body 1. A plurality of (here, two) plate-like attachment springs 7 and 7 used when fixing the emergency lighting fixture 10 to the ceiling material C as a construction material are provided on the outer surface 1c of the fixture body 1. Provided. The attachment spring 7 has one end portion of the attachment spring 7 having an L-shaped outer shape on a holding portion (not shown) provided on the outer surface 1c of the instrument body 1 that holds the end portion of the attachment spring 7 in the width direction. 7a is fitted and locked to the instrument body 1 side. The emergency lighting fixture 10 of the present embodiment is inserted into a mounting hole C1 penetrating through the ceiling material C, and a plurality (two in this case) of mounting springs 7 and 7 and an outer flange portion of the fixture main body 1. The ceiling material C is sandwiched and fixed by 1b.

  The emergency lighting fixture 10 of the present embodiment connects the refractory wire electrically connected to the external auxiliary power source to the terminal block 8 through a through hole (not shown) penetrating the fixture main body 1 and the resin case 2. Thus, power can be supplied to the LED 3 a of the light source unit 3.

  In construction of the emergency lighting fixture 10, after the terminal block 8 is electrically connected to the refractory wire, the other end portions 7b and 7b of the mounting springs 7 and 7 provided on the outer surface 1c of the fixture body 1 are provided. Is inserted into the mounting hole C1 of the ceiling material C in a state of being pushed down so as to approach the outer surface 1c side of the instrument body 1. When the emergency lighting fixture 10 is pushed into the mounting hole C1 until the outer flange portion 1b of the fixture main body 1 comes into contact with the peripheral portion of the mounting hole C1 of the ceiling material C, the mounting springs 7 are connected to the outer surface of the fixture main body 1. Open away from 1c. Here, in the emergency lighting fixture 10, a part of the attachment spring 7 is elastically contacted with the peripheral portion of the attachment hole C <b> 1, and the ceiling material C is sandwiched between a part of the attachment spring 7 and the outer flange portion 1 b of the appliance body 1. By doing so, it is attached to the ceiling material C.

  Thus, when the emergency lighting fixture 10 of this embodiment attached to the ceiling material C is turned on in an emergency, the horizontal illuminance on the floor surface within a predetermined radius from the position immediately below the emergency lighting fixture 10 is set to a predetermined illuminance. In other words, the emergency lighting fixture 10 has the light emitted from the LED 3a incident on the lens 9 and refracted by the lens effect of the lens 9, so that the light distribution of light emitted from the LED 3a is wider than the light distribution. A predetermined wide-angle light suitable for the light distribution of the instrument 10 is irradiated.

  By the way, in the emergency lighting fixture 10 of a separate power supply type, the lifetime of the LED 3a may be about 100 hours, for example. Therefore, the emergency lighting fixture 10 can be designed to be shorter than the target life (for example, 20,000 hours to 40,000 hours) of the LED when the LED is provided as a light source unit for general illumination. Therefore, the emergency lighting apparatus 10 can have a simpler structure with respect to the heat dissipation structure as compared with a downlight or the like provided with LEDs as a light source unit.

  The emergency lighting fixture 10 has the other surface 5b side of the wiring board 5 on which the LED 3a is mounted on the one surface 5a side, which is generally lower in heat conductivity than the metal material but outside the resin case 2 excellent in workability. The resin case 2 is held facing the one surface 2f. That is, the emergency lighting fixture 10 has the allowable temperature of the LED 3a itself that satisfies the life of the LED 3a in the emergency lighting fixture 10 even when the wiring board 5 on which the LED 3a is mounted on the one surface 5a side is held in the resin case 2. be able to.

  Hereinafter, each structure of the emergency lighting fixture 10 of this embodiment is explained in more detail.

  The fixture body 1 used in the emergency lighting fixture 10 of the present embodiment can be made of a metal material (for example, aluminum or stainless steel) or various resin materials. When the appliance main body 1 is made of a metal material, it is possible to suppress the resin case 2 accommodated during construction of the emergency lighting fixture 10 from being bent and deformed by an external force. Moreover, the fire resistance of the emergency lighting fixture 10 can be improved by comprising the instrument main body 1 with a metal material compared with what was formed with the resin material. The instrument main body 1 can accommodate and fix the light source unit 11 including the wiring board 5 and the resin case 2 on the inner side of the instrument main body 1 using the frame body portion 6. The fixture body 1 is extended outward from the opening edge of the opening 1a for accommodating the resin case 2, and can be used for fixing the emergency lighting fixture 10 to the ceiling material C side. 1b is preferably provided, but is not always necessary when the instrument body 1 is screwed directly to the ceiling material C. The instrument body 1 used for the emergency lighting instrument 10 of the present embodiment is formed in a bottomed cylindrical shape, but is not limited to a cylindrical shape, and may be a bottomed rectangular cylinder shape or a bowl shape.

  The resin case 2 used in the emergency lighting fixture 10 of the present embodiment holds the wiring board 5 on which the LED 3a is mounted on the one surface 5a side on the outer surface 2f side, and at least holds the circuit board 4c in the inner 2g. Is possible. Such a resin case 2 can be formed by injection molding or the like using various resin materials (for example, PBT). The resin case 2 used in the emergency lighting device 10 of the present embodiment has an outer peripheral surface 2c similar to the inner peripheral surface 1e of the device main body 1 so that the resin case 2 can be accommodated inside the device main body 1, and more than the device main body 1. Although a slightly small interior 2g is formed in a hollow cylindrical shape, it can be formed in an appropriate shape such as a rectangular cylinder as long as it can be accommodated inside the instrument body 1. The resin case 2 is, for example, a circuit in which the circuit component 4 is mounted in one semi-columnar case obtained by dividing the columnar shape into two when the inside 2g is formed in a hollow columnar shape. After the mounting substrate 8c on which the substrate 4c and the terminal block 8 are mounted is stored, it may be formed by being combined with the other semi-cylindrical case. The resin case 2 can be handled integrally as the light source unit 11 by holding the wiring board 5 on the outer surface 2f and housing the circuit board 4c in the inside 2g, so that the emergency lighting apparatus 10 can be assembled and installed. It becomes possible to carry out simply.

  LED3a which comprises the light source part 3 used for the emergency lighting fixture 10 of this embodiment is a semiconductor light emitting element which can irradiate light by electric power feeding. As such an LED 3a, for example, an LED chip that emits blue light or ultraviolet light, and a particulate phosphor that emits light having a longer wavelength when excited by light energy emitted from the LED chip (for example, blue light) And a color conversion member containing phosphors that emit yellow light having a broad emission wavelength range and three types of phosphors that can emit blue, green, and red when excited by ultraviolet light. Thus, mixed color light such as white light can be irradiated.

  Although the structure of the LED 3a is not shown, it is formed in a dome shape for controlling the light distribution of the light emitted from the LED chip, and the LED chip is accommodated between the package substrate and the package substrate. Sealing made of a translucent material (for example, silicone resin, epoxy resin, glass, etc.) that seals the LED chip and a bonding wire electrically connected to the LED chip in a space surrounded by one surface side And a portion of the package substrate that covers the sealing portion from the one surface side, is excited by light emitted from the LED chip and transmitted through the sealing portion, and emits light of a color different from that of the LED chip. It is possible to use a material having a dome-shaped color conversion member made of a translucent material containing a fluorescent material. In addition, an air layer may be provided between the color conversion member and the surface of the sealing portion.

Here, the LED 3a is activated by, for example, an LED chip using a gallium nitride-based compound semiconductor such as InGaN that emits blue light in a light emitting layer, and Eu that absorbs blue light and emits a complementary color yellow light. Silicate phosphors doped with rare earth such as (Sr, Ba) ₂ SiO ₄ , Y ₃ Al ₅ O ₁₂ activated with Ce, Tb ₃ Al ₅ O ₁₂ activated with Ce, etc. White light can be obtained by using the above-described color conversion member in which an aluminate-based phosphor doped with rare earth is contained in a translucent material.

  Further, the LED 3a is a translucent member that does not contain a phosphor instead of using the color conversion member, and is a red LED chip that emits red light, a green LED chip that emits green light, and a blue LED chip that emits blue light. As a configuration covering the surface, white light can be emitted. Such an LED 3a can be surface-mounted and electrically connected to the wiring pattern on one surface 5a of the wiring board 5 by reflow soldering or the like.

  In addition, the LED 3a may be an LED chip that becomes a bare chip, or may be a surface mount type light emitting diode in which the LED chip is covered with a package such as a synthetic resin and a lead terminal for power supply is provided outside.

  A plurality of LEDs 3a used in the emergency lighting fixture 10 can be provided on one surface 5a of the wiring board 5 as desired, and each LED 3a is electrically connected using the wiring pattern on the one surface 5a side of the wiring board 5. Alternatively, a series connection, a parallel connection, or a series-parallel connection may be used. The LEDs 3a on the one surface 5a side of the wiring board 5 can be appropriately arranged in a matrix shape, a staggered shape, a circular shape, or the like in plan view.

  The circuit component 4 of the lighting circuit in the emergency lighting fixture 10 of the present embodiment is used for the configuration of a lighting circuit capable of lighting the LED 3a of the light source unit 3 based on power supplied from an external standby power supply. In the emergency lighting apparatus 10 of the present embodiment, the circuit board 4c on which the circuit component 4 is mounted and the mounting board 8c on which the terminal block 8 is mounted are divided, but the terminal block 8 is provided in the mounting space of the circuit board 4c. If there is a margin for arranging the terminal board 8 on the circuit board 4c, the mounting board 8c need not be provided. As the circuit board 4c, for example, a glass epoxy resin substrate, a ceramic substrate, a metal base substrate, or the like may be used as appropriate. The emergency lighting fixture 10 only needs to be able to be lit at an allowable temperature of the LED 3a itself that satisfies the life of the LED 3a in the emergency lighting fixture 10 by receiving power from an external standby power supply at the time of a power failure such as a commercial power supply. Therefore, if the emergency lighting fixture 10 is an allowable temperature of the LED 3a itself that satisfies the life of the LED 3a in the emergency lighting fixture 10, an external standby power supply or the like at the time of maintenance check whether the emergency lighting fixture 10 is normally lit. The LED 3a of the light source unit 3 can also be turned on using. Note that the emergency lighting fixture 10 may have a temperature detecting function that automatically detects whether the LED 3a itself is within the allowable temperature that satisfies the life of the LED 3a in the emergency lighting fixture 10 and automatically turns off the LED 3a. In addition, a timer function for turning off the LED 3a after a predetermined time has elapsed may be provided.

  For example, the emergency lighting fixture 10 is provided with a manual switch (not shown) and a timer linked to the switch as the circuit component 4 constituting the lighting circuit, and the LED 3a is operated for a predetermined time of the timer by operating the switch. A function may be provided in which the operation of the LED 3a is confirmed by turning on only during the period. Further, the emergency lighting fixture 10 has a lighting circuit configuration including a control circuit unit that controls the output to the LED 3a by controlling the output to the LED 3a based on a wireless signal transmitted from an external remote controller. It is good. Thereby, it can be checked comparatively easily whether the emergency lighting fixture 10 operates normally. The control circuit unit may be configured by a microcomputer or the like equipped with an appropriate control program. Furthermore, the emergency lighting fixture 10 may be configured to have a lighting circuit so that it can be turned on and off by the control circuit.

  In the wiring board 5 in the emergency lighting fixture 10 of the present embodiment, the wiring pattern for supplying power to the LED 3a is formed on the one surface 5a side on which the LED 3a is mounted. The wiring board 5 has a wiring pattern electrically connected to the circuit board 4c side on which the circuit component 4 in the lighting circuit for lighting the LED 3a is mounted on the other surface 5b side via the wiring cord 15a. . When the wiring board 5 having the above wiring pattern on the other surface 5b is used, the wiring board 5 has a wiring pattern on the one surface 5a side and a wiring pattern on the other surface 5b side penetrating in the thickness direction of the wiring board 5. What is necessary is just to electrically connect with the made through wiring. Such a wiring substrate 5 is not limited to a glass epoxy resin substrate, for example, and a metal material (for example, Au) is used on an insulating substrate made of a ceramic substrate such as an alumina ceramic substrate or an aluminum nitride substrate. A wiring pattern, a metal base substrate, or the like can also be used.

  The wiring board 5 should just be hold | maintained by the one surface 2f side of the outer side of the resin case 2 in the emergency lighting fixture 10. FIG. Therefore, the wiring board 5 can have an appropriate shape such as a circular shape, an elliptical shape, or a polygonal shape in plan view. The wiring board 5 used in the emergency lighting fixture 10 of the present embodiment is, for example, screwed to the pair of holding portions 2b, 2b from the one surface 5a side of the wiring board 5 to the one surface 2f side of the resin case 2. Can be fixed by an adhesive (not shown).

  The wiring board 5 can join the LED 3a to a die pad portion made of a part of the wiring pattern provided on one surface 5a of the wiring board 5 using a bonding material such as AuSn, solder, or silver paste. A protective film made of a synthetic resin or the like may be appropriately formed on one surface 5a of the wiring board 5 in order to protect the wiring pattern electrically and mechanically. A white coating film may be formed on the one surface 5a side of the wiring board 5 as desired. Thereby, the wiring board 5 can also reflect the light from LED3a efficiently.

  The frame body portion 6 of the emergency lighting fixture 10 is suitably used for housing and holding the resin case 2 constituting the light source unit 11 inside the fixture body 1. In particular, the frame body portion 6 used in the emergency lighting fixture 10 of the present embodiment does not impair the appearance of the emergency lighting fixture 10 installed on the ceiling material C without losing its appearance by seeing a screw head of a fixing screw or the like. The resin case 2 holding the wiring board 5 can be fixed to the instrument body 1 side. The frame body portion 6 holds the flange portion 9a provided on the outer peripheral portion of the lens 9 with a pair of holding projections 6b and 6b provided along the outer periphery of the opening 6a, for example. Such a frame portion 6 can be formed using a metal material such as aluminum or a synthetic resin material. The frame 6 includes, for example, a notch not shown in at least one of the pair of holding projections 6 b and 6 b of the frame 6, and is partially provided on the outer periphery of the lens 9 from the notch. What is necessary is just to hold | maintain the lens 9 by inserting the collar part 9a and rotating the lens 9 and the frame part 6 relatively. Further, the frame body portion 6 may be configured to be fitted and held between the pair of holding projections 6b and 6b using the elasticity of the material constituting the frame body portion 6 and the lens 9.

  A plurality of attachment springs 7 are preferably provided on the outer surface 1c of the appliance main body 1 in order to place the emergency lighting fixture 10 inside the attachment hole C1 penetrating the ceiling material C, which is a construction material. And depending on the installation form of the emergency lighting fixture 10, it is not necessarily required.

  The terminal block 8 is supplied with power from an external standby power source (not shown) in an emergency, and supplies power to the LED 3a which is the light source unit 3 accommodated in the instrument body 1, so that an external fireproof wire (not shown) ) Is preferably provided as a terminal for electrical connection. For example, the terminal block 8 is electrically connected to a mounting pattern (not shown) on a mounting substrate 8c formed by appropriately using a glass epoxy resin substrate, a ceramic substrate, a metal base substrate, or the like, using solder or the like. Just do it. The mounting pattern of the mounting board 8c may be electrically connected to the circuit board 4c side with the connection cord 8a.

  The lens 9 used in the emergency lighting fixture 10 of the present embodiment is suitably provided to make the light from the LED 3a a predetermined light distribution. For example, glass, acrylic resin, or the like is used as the material of the lens 9. Can do. For example, the lens 9 may be formed in an appropriate shape such as a convex lens shape or a plano-convex lens shape so that a desired light distribution can be obtained from the light from the emergency lighting fixture 10. Further, in place of the lens 9, only a plate-shaped translucent plate may be disposed for the purpose of protecting the inside of the instrument body 1. Moreover, in order to give directivity to the light which the light transmission plate irradiates from LED3a and permeate | transmits the light transmission plate, you may process the surface of a light transmission plate in the shape of a prism.

  In addition, in the emergency lighting fixture 10 of this embodiment, as shown in FIG. 1, in order to spread the light distribution of the light irradiated from LED3a, the thickness of the lens 9 is formed in a biconcave shape that is depressed on the center side. I am letting. Thereby, the lens 9 of the emergency lighting fixture 10 of the present embodiment can irradiate the light incident on the central portion of the lens 9 from the LED 3a to the side and irradiate it from the emergency lighting fixture 10. Thereby, the emergency lighting fixture 10 of the present embodiment sets the horizontal plane illuminance of the floor within a predetermined radius from directly below the emergency lighting fixture 10 to a predetermined illuminance (for example, 1 lx) or more.

(Embodiment 2)
In the emergency lighting apparatus 10 of the present embodiment shown in FIG. 2, the wiring board 5 is held on the one surface 2f side of the resin case 2 by using a screw as the holding portion 2b as in the first embodiment shown in FIG. Instead of the configuration described above, the difference is that the wiring board 5 is held by the holding portion 2b provided in the resin case 2 itself. In addition, in the figure, the same member as Embodiment 1 is attached with the same number, and the description is omitted.

  Hereinafter, the emergency lighting fixture 10 of this embodiment is demonstrated using FIG.

  The emergency lighting fixture 10 according to the present embodiment is a power-separated type emergency lighting fixture that receives power from an external standby power source (not shown) and lights the light source unit 3 provided in the fixture body 1 in an emergency. 10. As shown in FIG. 2, the emergency lighting apparatus 10 includes an LED 3a as a light source unit 3 and a circuit board on which a wiring board 5 for mounting the LED 3a on one surface 5a side and a circuit component 4 of a lighting circuit for lighting the LED 3a are mounted. 4c, a resin case 2 that holds the circuit board 4c while housing the circuit board 4c in the inner 2g and holding the wiring board 5 with the outer surface 5f facing the other surface 5b side of the outer side, and the light source unit 3 And a bottomed cylindrical instrument body 1 that accommodates a resin case 2.

  In particular, the emergency lighting apparatus 10 according to the present embodiment includes a holding portion in which the resin case 2 includes a protrusion 2bb that protrudes in a direction parallel to the one surface 2f from a standing portion 2e that is erected from the one surface 2f side of the resin case 2. 2b, and is configured such that the wiring substrate 5 can be held by sandwiching the edge portion 5c of the wiring substrate 5 between the projection 2bb of the holding portion 2b and the one surface 2f.

  In addition, when the wiring board 5 used for the emergency lighting fixture 10 of this embodiment is circular, for example, the outer diameter of the resin case 2 is such that it can be held by the pair of holding portions 2b and 2b of the resin case 2. The circular shape is slightly smaller than the inner diameter of the opening 2a. The wiring board 5 may be held by being fitted between the pair of holding portions 2b, 2b of the resin case 2 using the elasticity of the resin material. Further, the resin case 2 includes, for example, a notch portion (not shown) in at least one of the pair of holding portions 2b and 2b of the resin case 2, and an end partly projecting from the notch portion to the outer peripheral portion of the wiring board 5 It is good also as a structure which hold | maintains the wiring board 5 by inserting a part and rotating the wiring board 5 and the resin case 2 relatively.

  In addition, the emergency lighting fixture 10 has a resin case 2 including a wiring board 5 in which an LED 3a serving as the light source unit 3 is mounted on the one surface 5a side and the other surface 5b side is held on the outer one surface 2f. Contain and hold. A circuit board 4c electrically connected to the wiring board 5 via the wiring cord 15a and a mounting board 8c electrically connected to the circuit board 4c via the connection cord 8a are connected to the inside 2g of the resin case 2. Stored. In addition, the frame body portion 6 that holds the lens 9 has a cylindrical shape that protrudes from the frame body portion 6 so as to surround the lens 9 in the gap between the outer peripheral surface 2 c of the resin case 2 and the inner peripheral surface 1 e of the instrument body 1. The holding frame 6c is inserted and integrated with the instrument body 1 by the elastic force of the resin case 2 and the holding frame 6c. The light emitted from the LED 3a is incident on the lens 9 and refracted, so that the light has a predetermined wide-angle light suitable for a wider light distribution of the emergency lighting apparatus 10 than the light distribution of the light emitted from the LED 3a. Can be irradiated.

  The emergency lighting fixture 10 of the present embodiment holds the wiring board 5 on which the LEDs 3a are mounted after electrically connecting an external fireproof wire (not shown) and the terminal block 8 of the mounting board 8c in advance. A resin case 2 to be stored is accommodated in a bottomed cylindrical instrument body 1.

In other words, in the emergency lighting apparatus 10 of the present embodiment, the resin case 2 is sandwiched so that the edge portion 5c of the wiring board 5 on which the LED 3a is mounted is held between the one surface 2f of the resin case 2 and the protrusion 2bb of the holding portion 2b. The other surface 5b side of the wiring board 5 and the one surface 2f of the resin case 2 are brought into contact with each other to hold the wiring board 5. That is, the resin case 2 can constitute the light source unit 11 in which the circuit board 4c and the mounting board 8c are housed in the wiring board 5 in which the LEDs 3a are mounted on the outer surface 2f and the circuit board 4c and the mounting board 8c are housed in the inside 2g. As a result, the emergency lighting fixture 10 with separate power supply according to the present embodiment facilitates the installation of the wiring board 5 on which the LEDs 3a are mounted, and can improve the assembly workability.

(Embodiment 3)
The emergency lighting fixture 10 of the present embodiment shown in FIG. 3 is similar to the second embodiment shown in FIG. Instead of a configuration in which they are electrically connected via (not shown), they are connected by a connector connecting portion 15c provided on the other surface 5b side of the wiring board 5 and a connector 15b provided on the circuit board 4c. The point is different. In addition, in the figure, the same member as Embodiment 2 is attached with the same number, and the description is omitted.

  Hereinafter, the emergency lighting fixture 10 of this embodiment is demonstrated using FIG.

  The emergency lighting apparatus 10 of the present embodiment includes a connector connecting portion 15c in which the wiring board 5 is electrically connected to the LED 3a on the other surface 5b side of the wiring board 5, and the connector connecting portion 15c and the resin case 2 A connector 15b provided on the circuit board 4c accommodated in the interior 2g and electrically connected to the lighting circuit is electrically and mechanically connected through the through hole 2d of the resin case 2.

  When the emergency lighting fixture 10 of this embodiment holds the wiring board 5 on the resin case 2 side, the connector connection portion 15c mounted on the other surface 5b of the wiring board 5 on which the LED 3a is mounted on the one surface 5a side, The connector 15b mounted on the circuit board 4c accommodated in the interior 2g of the resin case 2 is electrically and mechanically connected through the through hole 2d of the resin case 2 at the same time.

  As a result, the emergency lighting fixture 10 with a separate power source of the present embodiment is configured such that the circuit board 4c and the wiring board 5 are electrically connected in advance with the wiring cord 15a by solder or the like, and then the wiring board 5 is connected to the resin case 2. Compared with the one that holds the wiring board 5, it is only necessary to connect the connector connecting portion 15 c on the wiring board 5 side and the connector 15 b on the circuit board 4 c to hold the wiring board 5 on the resin case 2 side. It is possible to further improve the assembly workability of the lighting fixture 10 for lighting.

DESCRIPTION OF SYMBOLS 1 Instrument main body 1a Opening part 2 Resin case 2b Holding | maintenance part 2bb Protrusion 2d Through-hole 2e Standing part 2f One surface 2g Inside 3 Light source part 3a LED
4 Circuit parts 4c Circuit board 5 Wiring board 5a One surface 5b Other surface 5c Edge 10 Emergency lighting equipment 15c Connector connection part 15b Connector

Claims (4)

It is an emergency lighting fixture with a separate power source that receives power from an external standby power source and turns on the light source provided in the fixture body in an emergency,
A wiring board that includes an LED as the light source unit and that mounts the LED on one surface side, a circuit board that mounts a circuit component of a lighting circuit that lights the LED, accommodates the circuit board inside, and A resin case for holding the wiring board with one outer surface facing the other surface side of the wiring board; and the instrument body for housing the resin case with an opening for exposing the light source part ;
And the outer peripheral surface of said resin case, between the inner peripheral surface of the device body, emergency lighting fixture, characterized in Rukoto which have a gap.   The resin case includes a holding portion having a protrusion protruding in a direction parallel to the one surface from a standing portion standing from the one surface side of the resin case, and between the protrusion of the holding portion and the one surface. The emergency lighting apparatus according to claim 1, wherein the wiring board is held by sandwiching an edge of the wiring board. The wiring board includes a connector connecting portion electrically connected to the LED on the other surface side of the wiring board, and is provided on the circuit board accommodated in the connector connecting portion and the resin case. The emergency lighting apparatus according to claim 1 or 2, wherein a connector electrically connected to the lighting circuit is electrically and mechanically connected through a through hole of the resin case . The emergency lighting fixture according to any one of claims 1 to 3, wherein the fixture main body and the resin case are integrated by a holding frame inserted into the gap.

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