JP5635883B2 - 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. 3, a fitting hole into which the lamp device 30 and the cap portion 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 in 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. 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 that mounts the LED on one surface side and mounts at least a part of circuit components in a lighting circuit that lights the LED on the other surface side, and covers the other surface side of the wiring board and covers the wiring board It has a resin case for holding, and the instrument body having a first open mouth part to eject the light from the light source unit accommodating the resin case and the resin case, the second to the open end A pair of projecting portions projecting toward the opening side is provided along the depth direction of the resin case, and the resin case sandwiches an end portion of the wiring board between the pair of projecting portions. Holding the board, on top The instrument body and said resin case, characterized in that it is integrated by the inserted holding frame in the gap between the instrument body and the resin case.

  In this emergency lighting apparatus, the resin case includes an engagement claw provided on the outer peripheral surface side of the resin case, and engages an engagement hole penetrating the apparatus main body with the engagement claw. It is preferable that it is fixed to the said instrument main body by this.

  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 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 apparatus 10 is an instrument body 1 having a bottomed cylindrical outer shell and an outer peripheral surface 2c similar to the inner peripheral surface of the instrument body 1 so as to be housed inside the instrument body 1. A bottomed cylindrical resin case 2 slightly smaller than the main body 1 is provided. In addition, 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 3 a constituting the light source unit 3 are mounted on the one surface 5 a side. It is provided so as to cover the part 2a.

  On the other surface 5b side facing the one surface 5a on which the LED 3a of the wiring board 5 is mounted, a circuit component 4 of a lighting circuit for lighting the LED 3a is mounted using solder or the like. The wiring board 5 includes a wiring pattern (not shown) on the one surface 5a side on which the LED 3a is mounted and a wiring pattern (not shown) on the other surface 5b side on which the circuit components 4 constituting the lighting circuit of the LED 3a are mounted. Is electrically connected via a through wiring (not shown) penetrating in the thickness direction of the wiring board 5. Further, on the other surface 5b side of the wiring board 5, there is provided a terminal block 8 that can be electrically connected to a refractory wire (not shown) that receives power from a standby power supply in an emergency. The terminal block 8 is electrically connected to the LED 3a through a lighting circuit in order to supply power to the LED 3a.

  The resin case 2 is provided with a pair of projecting portions 2b and 2b projecting toward the opening 2a side along the depth direction of the resin case 2 (vertical direction in FIG. 1). The resin case 2 holds the wiring substrate 5 with the end portion of the wiring substrate 5 sandwiched between the pair of protruding portions 2b and 2b. That is, the resin case 2 of the emergency lighting fixture 10 covers the other surface 5 b side of the wiring board 5 and holds the wiring board 5.

  Thus, the emergency lighting fixture 10 of the present embodiment includes the LED 3a, the wiring board 5 on which the LED 3a is mounted on the one surface 5a side, and the circuit component 4 of the lighting circuit that is mounted on the other surface 5b side of the wiring board 5. And an LED unit 11 that is integrated with the terminal block 8. In the emergency lighting fixture 10 of the present embodiment, the resin case 2 holds the LED unit 11. The emergency lighting fixture 10 is housed inside the fixture main body 1 together with the resin case 2 holding the LED unit 11 so that light can be extracted from the light source unit 3.

  In addition, the emergency lighting fixture 10 includes a frame body portion 6 including a lens 9 that makes light from the LED 3a a predetermined light distribution so as to cover the opening 1a of the fixture body 1 that extracts light from the light source portion 3. The instrument body 1 is provided on the front side. 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 holding the LED unit 11 is housed and 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 unit 11.

  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 to 40,000 hours) of the LED 3a when the LED 3a 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 including the LED 3a as the light source unit 3.

  The emergency lighting fixture 10 holds the LED unit 11 in which the light source unit 3 is mounted on the wiring board 5 in the resin case 2 that is generally low in thermal conductivity but excellent in workability as compared with a metal material. In other words, even when the emergency lighting fixture 10 holds the LED unit 11 in the resin case 2, the emergency lighting fixture 10 can have the allowable temperature of the LED 3 a itself that satisfies the life of the LED 3 a in the emergency lighting fixture 10. The emergency lighting fixture 10 has a structure in which the LED 3a is mounted on one surface 5a of the wiring board 5 and the circuit component 4 of the lighting circuit is mounted on the other surface 5b side of the wiring board 5. It is not necessary to provide a separate substrate, and further miniaturization is possible.

  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 resin case 2 and the wiring board 5 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 apparatus 10 of the present embodiment is an LED unit comprising a wiring board 5 in which an LED 3a is mounted on one surface 5a side, and a circuit component 4 and a terminal block 8 are mounted on the other surface 5b side. 11 can be held. 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 apparatus 10 of the present embodiment has an outer peripheral surface 2c similar to the inner peripheral surface of the apparatus main body 1 so that the resin case 2 can be accommodated inside the apparatus main body 1, and slightly more than the apparatus main body 1. Although it is formed in a small bottomed cylindrical shape, an appropriate shape such as a rectangular cylindrical shape can be used as long as the LED unit 11 is held and can be accommodated inside the instrument body 1. The resin case 2 can be handled as a unit with the LED unit 11 by holding the LED unit 11, and the emergency lighting apparatus 10 can be easily assembled and installed.

  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. 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, the emergency lighting fixture 10 may turn on the LED 3a of the light source unit 3 by using an external commercial power source during normal times as long as the LED 3a itself has an allowable temperature that satisfies the life of the LED 3a in the emergency lighting fixture 10. it can. That is, the lighting circuit rectifies AC power supplied from an external commercial power source (not shown) in a normal state, and then smoothes the rectified smoothing unit (not shown) that outputs a DC current; It is good also as a structure provided with the constant current power supply part (not shown) for supplying the direct current from a smoothing part to LED3a as a fixed electric current. The emergency lighting fixture 10 may have a function of detecting whether the LED 3a itself within the allowable temperature satisfying the life of the LED 3a in the emergency lighting fixture 10 is within the allowable temperature and turning off the LED 3a. A timer function for turning off the LED 3a after the elapse of time may be provided.

  Further, the emergency lighting fixture 10 includes 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 confirmed whether or not the emergency lighting apparatus 10 operates normally.

  Further, the emergency lighting apparatus 10 controls the output to the LED 3a based on the output of the human body detection sensor for detecting the presence or absence of a person and the brightness sensor for detecting the brightness of the surroundings to turn on the LED 3a. It is good also as a structure of the lighting circuit provided with the control circuit part to control. That is, the emergency lighting fixture 10 is provided with various sensors such as a signal receiving element that receives a radio signal from the remote controller in the LED unit 11, and outputs from the constant current power supply unit based on the output from the sensor. The current flowing through the LED 3a can be controlled by the control circuit unit that controls the current to be generated. 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. In addition, a wiring pattern is formed in which at least a part of the circuit component 4 in the lighting circuit for lighting the LED 3a is mounted and electrically connected to the other surface 5b side. Furthermore, the wiring board 5 is electrically connected to the wiring pattern on the one surface 5 a side and the wiring pattern on the other surface 5 b side by a through wiring that penetrates in the thickness direction of the wiring board 5. 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 emergency lighting fixture 10 is mounted on a circuit board (not shown) separately provided with a part of the circuit component 4 in the lighting circuit for lighting the LED 3a according to the shape of the circuit component 4 and the like. The circuit board and the wiring board 5 may be electrically connected.

  The wiring board 5 may be held by the resin case 2 in the emergency lighting fixture 10. 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. 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 protrusions 2b, 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 protrusions 2b, 2b of the resin case 2 using the elasticity of the resin material. Further, the resin case 2 includes, for example, a notch not shown in at least one of the pair of protrusions 2b, 2b of the resin case 2, and an end partially protruding from the notch 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.

  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 preferably used for accommodating and holding the resin case 2 holding the LED unit 11 inside the fixture main 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.

  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)
The emergency lighting fixture 10 of the present embodiment shown in FIG. 2 is configured to hold the resin case 2 on the fixture body 1 side using the frame body portion 6 as in the first embodiment shown in FIG. The difference is that it is fixed to the instrument body 1 by the engaging claw 2d provided on 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 fixture 10 includes an LED 3a as the light source unit 3, and the LED 3a is mounted on the one surface 5a side, and at least a part of the circuit component 4 in the lighting circuit for lighting the LED 3a is provided on the other surface 5b. A wiring board 5 mounted on the side, a resin case 2 that covers the other surface 5b side of the wiring board 5 and holds the wiring board 5, and an opening 1a that accommodates the resin case 2 and extracts light from the light source part 3 The bottomed cylindrical instrument main body 1 is provided.

  In particular, the emergency lighting fixture 10 of this embodiment includes a plurality of (two in this case) engaging claws 2d provided on the outer peripheral surface 2c side of the resin case 2, and the appliance main body. By engaging the engaging holes 1d and the engaging claws 2d at a plurality of locations (here, two locations) penetrating through 1, the fixture body 1 can be fixed.

The emergency lighting apparatus 10 includes an LED unit 11 including a wiring board 5 on which an LED 3a serving as the light source unit 3 is mounted on one surface 5a side and a circuit component 4 of a lighting circuit of the LED 3a is mounted on the other surface 5b side. A resin case 2 for holding the housing is housed and held in the instrument body 1. Further, the frame portion 6 which holds the lens 9 includes a resin case 2, the gap between the engaging claws 2d of the resin case 2 and engaged device body 1 with the engaging hole 1d, slightly larger than the gap thickness The cylindrical holding frame 6c protruding so as to surround the lens 9 from the frame body portion 6 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.

In the construction of the emergency lighting apparatus 10 of the present embodiment, an external fireproof wire (not shown) and the terminal block 8 of the LED unit 11 are electrically connected in advance, and then the resin that holds the LED unit 11 The case 2 is inserted by being pushed into the inside of the bottomed cylindrical instrument body 1. The engaging claws 2d provided on the outer peripheral surface 2c of the resin case 2 abut on the inner peripheral surface 1e of the instrument body 1, whereby the peripheral wall of the resin case 2 is bent. The engaging claw 2 d provided on the outer peripheral surface 2 c of the resin case 2 is fixedly held by the engaging claw 2 d protruding toward the outer side surface 1 c of the instrument body 1 through the engagement hole 1 d of the instrument body 1. Thereby, the emergency lighting fixture 10 can attach the resin case 2 to the fixture main body 1. In addition, the emergency lighting fixture 10 adjusts the position of the engagement claw 2d of the resin case 2 and the engagement hole 1d of the appliance main body 1 to adjust the depth to be accommodated in the appliance main body 1 of the resin case 2. Can be adjusted. Further, if the emergency lighting apparatus 10 simply fixes the resin case 2 and the apparatus main body 1, the resin case 2 may be provided with an engaging claw 2d and the apparatus main body 1 may be provided with an engaging hole 1d. Good. In the emergency lighting device 10 of the present embodiment, the engaging claws 2d provided on the outer peripheral surface 2c of the resin case 2 are projected from the engaging hole 1d of the device main body 1 toward the outer surface 1c of the device main body 1. Therefore, the emergency lighting fixture 10 moves the resin case 2 in the direction in which the resin case 2 is removed from the fixture body 1 while pressing the engaging claws 2d from the outside of the fixture body 1 to the inside of the fixture body 1. It can also be taken out from the instrument body 1. That is, the emergency lighting fixture 10 can be configured such that the resin case 2 is detachable from the fixture body 1.

DESCRIPTION OF SYMBOLS 1 Instrument main body 1a Opening part 1d Engagement hole 2 Resin case 2c Outer peripheral surface 2d Engagement claw 3 Light source part 3a LED
4 Circuit parts 5 Wiring board 5a One surface 5b Other surface 10 Emergency lighting equipment

Claims (2)

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 including an LED as the light source unit, mounting the LED on one surface side and mounting at least a part of circuit components in a lighting circuit for lighting the LED on the other surface side, and the other surface side of the wiring board a resin case for holding the wiring board to cover the, and a said tool body having a first open mouth part to eject the light from the light source unit accommodating the resin case,
The resin case is provided with a pair of projecting portions projecting toward the second opening side at the opening end portion along the depth direction of the resin case, and the resin case has a pair of end portions of the wiring board. Holding the wiring board sandwiched between the protrusions,
The emergency lighting fixture , wherein the fixture main body and the resin case are integrated by a holding frame inserted in a gap between the fixture main body and the resin case .   The resin case includes an engagement claw provided on the outer peripheral surface side of the resin case, and is fixed to the instrument body by engaging an engagement hole penetrating the instrument body and the engagement claw. The emergency lighting apparatus according to claim 1, wherein the emergency lighting apparatus is provided.

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