JP2015065076A - Illumination device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an illumination device capable of easily attaching/detaching a secondary battery to/from a main body and achieving cost reduction.SOLUTION: A unit 16 includes: a light-emitting element 32; and a lens 34, and the unit 16 is fitted within a main body 15. A secondary battery 17 is provided separately from the unit 16 and detachably attached to the main body 15 from one end of the main body 15 along a light emission direction of the light-emitting element 32. A lighting unit 35 includes: a circuit board 43; a monitor 44; and an inspection switch 45. The circuit board 43 is provided along the light emission direction of the light-emitting element 32. The monitor 44 and the inspection switch 45 are mounted in an end portion of the circuit board 43 and face one end of the main body 15. The lighting unit 35 charges the secondary battery 17 with electric power, which is supplied from an external power supply, during non-power failure. The lighting unit 35 receives electric power supplied from at least either the external power supply or the secondary battery 17 and operates to turn on the light-emitting element 32 during power failure or during inspection.

Description

  Embodiments described herein relate generally to a lighting device including a secondary battery.

  Conventionally, as a lighting device having a secondary battery, for example, an emergency lighting device, an emergency light, a guide light, or the like is known. Conventionally, for example, an incandescent lamp such as a halogen lamp is used as a light source of such an illuminating device, and the light distribution is controlled by a reflector or the like. Therefore, when removing the secondary battery from the main body, it is necessary to remove the light source, the reflector, and the like, and there are many man-hours for replacing the secondary battery.

  In recent years, there has been a lighting device using a light emitting element such as a light emitting diode (LED) as a light source. And while providing a light emitting element and the optical control member which covers this light emitting element in the lower part of the supporting member which covers the opening of the lower part of a main part, a secondary battery is supported on this supporting member integrally, via this supporting member, The secondary battery is configured to be attached and detached by moving the secondary battery together with the light emitting element and the optical control member, thereby reducing the number of steps for replacing the secondary battery and preventing misalignment between the light emitting element and the optical control member. I am trying.

JP 2012-84324 A

  However, when moving the light source (light emitting element) with the secondary battery relative to the main body, the thermal connection structure to the main body of the light emitting element becomes complicated, and it is not easy to ensure sufficient heat dissipation, This is disadvantageous for maintaining the luminous efficiency of the light emitting element.

  Also, when providing a charge monitor or the like for displaying the charge state of the secondary battery, for example, if the substrate on which the charge monitor is mounted is integrally supported by the support member, the configuration becomes complicated, and the substrate is separated from the support member. In this case, it is not easy to reduce the cost because a part such as a reflection member for transmitting the display of the charge monitor to the lower side of the support member is required between the charge monitor and the support member.

  The problem to be solved by the present invention is to provide an illuminating device in which the secondary battery can be more easily attached to and detached from the main body and the cost can be reduced.

  The illuminating device of embodiment has a main body, a unit, a secondary battery, and a lighting unit. One end side of the main body is opened. The unit has a light emitting element and an optical control member, and is mounted in the main body. The light emitting element is provided on one end side of the main body. The optical control member controls light distribution of the light emitting element. The secondary battery is provided separately from the unit, and is detachable from the main body along the light emitting direction of the light emitting element from one end side of the main body. The lighting unit includes a circuit board and a functional unit. The circuit board is provided along the light emitting direction of the light emitting element. The functional unit is mounted on the end of the circuit board and faces one end of the main body. The lighting unit is housed in the unit and recharges the secondary battery in the event of a non-power failure by supplying power from an external power source, and from either the external power source or the secondary battery during a power failure or during inspection. The light emitting element is turned on by supplying power.

  According to the present invention, the secondary battery can be easily attached to and detached from the main body without removing or moving the light emitting element from the main body, and it is expected to reduce the cost by reducing the number of functional parts and the like. it can.

It is explanatory sectional drawing which shows typically the illuminating device of 1st Embodiment, (a) shows the mounting state of a secondary battery, (b) shows the removal state of a secondary battery. FIG. 3 is an explanatory plan view schematically showing the illumination device from the attachment surface side, in which (a) shows a state where the support structure is attached, and (b) shows a state where the support structure is removed. It is a block diagram which shows the circuit structure of an illuminating device same as the above. It is explanatory sectional drawing which shows typically the illuminating device of 2nd Embodiment.

  The configuration of the first embodiment will be described below with reference to the drawings.

  1 and 2, reference numeral 11 denotes a lighting device. The lighting device 11 is an emergency light that is turned on in an emergency such as a power failure, and is embedded in a ceiling surface 12 that is an upper mounting surface such as a hallway or a passage. It is an embedded lighting fixture to be installed.

  The lighting device 11 includes a main body 15, a unit portion 16 as a unit housed in the main body 15, a secondary battery (battery) 17 serving as an emergency power source, and terminals connected to an external power source 18 (FIG. 3). A stand 19 and a decorative frame 20 as a support structure are provided.

  The lighting device 11 can be applied to all indoor or outdoor lighting devices that use the secondary battery 17 as a power source, such as a guide light equipped with a regular lighting circuit. Moreover, it is not limited to the ceiling-embedded type, but may be installed by other installation means such as a direct mounting type or a ceiling type.

  The main body 15 is formed of, for example, a metal such as aluminum, and has a substantially covered cylindrical shape having an opening 25 covered with a decorative frame 20 at a lower end that is one end. Further, a side opening 26 through which the terminal block 19 is exposed is opened on one side (outer peripheral portion) of the main body 15. An attachment spring (not shown) as a fixing means for fixing the main body 15 to the installation member 27 of the ceiling surface 12 is provided on both side portions intersecting (orthogonal) with respect to the opening direction of the side opening 26 of the main body 15. Are attached to each.

  The unit portion 16 is, for example, a housing 31 formed of synthetic resin or metal, a light source 33 including a light emitting element 32 that emits light downward, and emitted from the light source 33 (light emitting element 32). And a lens 34 as an optical control member for controlling the light distribution, and the secondary battery 17 is charged during normal times, and the light source 33 (light-emitting element) using the charged secondary battery 17 as a power source during emergency or inspection. The lighting unit 35 for lighting 32) is housed in the casing 31.

  The casing 31 is fixed to the inside of the main body 15. Here, the case 31 (unit part 16) is fixed to the main body 15 means that the case 31 (unit part 16) cannot be easily detached from the main body 15, for example, It means that the body 31 (unit part 16) is screwed to the main body 15 or bonded with an adhesive. The casing 31 is formed in a box shape having a flat mounting surface portion 36 at the lower end facing the opening 25 at the lower end of the main body 15. The mounting surface portion 36 is, for example, a semi-circular outer edge portion 36a along the substantially half circumference of the inner peripheral surface of the main body 15, and a central axis direction of the main body 15 along the radial direction of the main body 15 from both side portions of the outer edge portion 36a. The linear portions 36b and 36b that extend linearly toward the surface, and a semicircular arc-shaped protruding portion 36c that connects the linear portions 36b and 36b and bulges in the opposite direction to the outer edge portion 36a. Further, a plurality of exposed openings 36d are opened on both sides of the light source 33 along the straight portions 36b and 36b, that is, along the radial direction of the main body 15, for example, in the mounting surface portion 36.

  As the light emitting element 32, for example, a semiconductor light emitting element such as a light emitting diode or a laser diode, or an organic EL element (OLED) is used. For example, white light is emitted downward. When a light emitting diode is used as the light emitting element 32, for example, a blue light emitting diode chip is covered with a yellow phosphor excited by the blue light emitting diode chip.

  The light source 33 includes a light source substrate 41, and a plurality of the light emitting elements 32 are mounted on the light source substrate 41. The light source 33 is integrally fixed to the attachment surface portion 36 of the housing 31 of the unit portion 16.

  The light source substrate 41 is formed in a circular shape along the shape of the protruding portion 36c of the mounting surface portion 36 of the housing 31, for example, by metal, and the outer edge portion is arranged so as to follow the outer periphery of the protruding portion 36c.

  The lens 34 diffuses the light emitted from the light source 33 (light emitting element 32), and is made of a translucent (transparent or translucent) member such as glass or a synthetic resin such as heat-resistant polycarbonate. The light source 33 (the light emitting element 32) is formed and disposed. The outer periphery of the lens 34 has a circular shape that follows the shape of the protruding portion 36c of the mounting surface 36 of the housing 31, and the lower part, which is the exit surface from which light exits, is downward in a spherical shape (dome shape). The light bulges and diffuses the light from the light source 33 (light emitting element 32) so as to have a light distribution characteristic defined by a predetermined standard of the emergency light. In addition, the lens 34 may be one in which glass is provided on the surface of a synthetic resin.

  The lighting unit 35 includes a rectangular flat circuit board 43 in which various circuits are configured, various monitors 44 serving as notification means mounted on the circuit board 43, and an inspection switch 45 serving as inspection means serving as the function section. Etc.

  The circuit board 43 is accommodated in the casing 31 along the central axis, that is, in the vertical direction, at a position near the central axis of the main body 15, for example, on the straight portions 36b and 36b of the mounting surface portion 36 of the casing 31. Along. That is, the circuit board 43 is disposed so as to have a mounting surface along the light emission direction of the light source 33 (light emitting element 32).

  The monitor 44 is a charge monitor that informs the state of charge of the secondary battery 17 and a light source monitor that informs the state of the light source 33 (light emitting element 32), and is composed of a light emitting element such as a light emitting diode, for example. Various notifications are made depending on the state. These monitors 44 are mounted on the lower end of the circuit board 43 downward, that is, toward the mounting surface 36 or the decorative frame 20, and are visible from below the decorative frame 20 facing the exposed opening 36d.

  The inspection switch 45 is for performing inspections defined by prescribed laws and regulations, and is provided with a drawstring or a push button switch that faces the exposure opening 36d and is led out from the exposure opening 36d below the decorative frame 20. It is possible to operate from the outside of the illumination device 11. Then, the inspection switch 45 is operated by operating a pull string or a push button switch, for example, shuts off the external power supply 18 and supplies power from the secondary battery 17 to the lighting unit 35, etc., and the light source 33 (light emitting element 32) The state of charge of the secondary battery 17, the state of various circuits of the lighting unit 35, the state of the light source 33 (light emitting element 32), and the like can be inspected, such as checking whether or not light is normally emitted. The inspection switch 45 may be a receiving unit that receives an inspection start signal from the outside.

  The secondary battery 17 is a rechargeable battery such as a nickel-cadmium battery, a nickel-metal hydride battery, or a lithium ion battery. In this embodiment, a plurality of (for example, four) batteries are included in a battery housing 47 and are recharged. A pack (assembled battery) 48 is configured and is detachably stored in the main body 15 from the opening 25. Here, the battery casing 47 accommodates the secondary batteries 17 in parallel with each other in the longitudinal direction, and a cross section in a horizontal plane that is a plane orthogonal to an axis connecting both poles of the secondary battery 17 is the casing. It is formed to be curved in an arcuate concave shape along the shape of the protruding portion 36c of the 31 attachment surface portion 36. Therefore, the unit portion 16 and the battery pack 48 (secondary battery 17) are housed in the main body 15 at positions that do not overlap each other in the vertical direction, that is, in the light emission direction of the light source 33 (light emitting element 32). Further, the battery housing 47 is provided with a connector portion (not shown) that is electrically connected to each secondary battery 17, and the battery pack 48 (secondary battery 17) is connected to the main body 15 via this connector portion. The secondary battery 17 is electrically connected to the unit portion 16 in a state of being housed inside.

  The external power source 18 (FIG. 3) can be an arbitrary power source such as a commercial AC power source or a DC power source.

  The terminal block 19 is used to electrically connect the external power source 18 and the lighting unit 35 of the unit portion 16 via an electric wire (not shown), and is disposed facing the side opening 26 of the main body 15. That is, the terminal block 19 is arranged on the opposite side of the secondary battery 17 (battery pack 48) via the circuit board 43 of the lighting unit 35. In other words, in the main body 15, the secondary battery 17 and the terminal block 19 are arranged with the circuit board 43 (lighting unit 35) interposed therebetween. The terminal block 19 is provided with a connection opening for connecting an electric wire and a release button (not shown), and is exposed to the side opening 26. 32) The wire can be inserted and connected from the direction that intersects (orthogonal) the light emission direction), and the holding of the wire inserted and connected to the connection opening can be released by operating the release button from the side. It has become. The terminal block 19 may be disposed outside or inside the housing 31 of the unit section 16 in the main body 15, for example, or may be disposed outside the main body 15 instead of the side opening 26. .

  The decorative frame 20 is integrally formed of a metal such as aluminum like the main body 15, for example, and a decorative frame main body 51 as a circular plate-like support structure main body having a size covering the opening 25 of the main body 15, And a mounting piece 52 protruding from the decorative frame main body 51.

  The decorative frame main body 51 is a part that supports the secondary battery 17 (battery pack 48) from below, and is attached to the lower part of the attachment surface part 36 of the casing 31 of the unit part 16 while being attached to the main body 15. It is a part to be. The decorative frame main body 51 has a circular opening 55 that protrudes downward when the lens 34 is inserted in the center, and the monitor 44 can be seen from both sides of the opening 55 from below. In addition, a hole 56 for projecting the inspection switch 45 downward is opened linearly along the radial direction. In other words, each hole 56 is formed so as to overlap each exposed opening 36d in a state where the decorative frame 20 is attached to the main body 15, in other words, at a position facing the lower side of each exposed opening 36d.

  The attachment piece 52 has an annular shape formed concentrically with the decorative frame body 51 and has an L-shaped cross section. For example, the attachment piece 52 is inserted into the opening 25 of the main body 15 from below, and is fixed to the main body 15 from the side of the main body 15 via a fixing member such as a screw (not shown).

  Next, the circuit configuration of the illumination device 11 will be described.

  As shown in FIG. 3, in the lighting device 11, a power failure detection means 61 and a charging circuit 62 are connected to the terminal block 19.

  The power failure detection means 61 is electrically connected to the lighting control unit 64 as the lighting control means, and when detecting that the voltage of the external power supply 18 applied to the terminal block 19 is below a predetermined value for a predetermined time. The power failure detection signal is given to the lighting control unit 64 as a power failure of the external power source 18 occurs.

  The charging circuit 62 converts the external power supply 18 into a direct current of a predetermined voltage and supplies it to the secondary battery 17 to charge the secondary battery 17. For example, when the secondary battery 17 is in a fully charged state, the lighting control unit 64 may detect the full charge of the secondary battery 17 and the lighting control unit 64 may light the monitor 44.

  An emergency lighting circuit 66 is connected to the secondary battery 17. The emergency lighting circuit 66 is a circuit for lighting the light source 33 (light emitting element 32) with a constant current using the secondary battery 17 as a power source in an emergency such as a power failure of the external power source 18. The emergency lighting circuit 66 is electrically connected to the light source 33 (light emitting element 32) via the lighting control unit 64.

  In the event of an emergency such as a power failure of the external power supply 18, the lighting control unit 64 receives a power failure detection signal from the power failure detection means 61 that detects the power failure, and causes the light source 33 (light emitting element 32) to pass through the emergency lighting circuit 66 for a predetermined time or more. It is to light up.

  The power failure detection means 61 is connected with a control unit 68 as control means. An inspection switch 45 and a receiving unit 69 are connected to the control unit 68. Then, when the pull string of the inspection switch 45 is pulled or the push button switch is pressed, the control unit 68 detects the operation of the pull string, and the lighting control unit 64 instructs the charging circuit 62 to stop charging the secondary battery 17. At the same time, the emergency lighting circuit 66 instructs the light source 33 (the light emitting element 32) to be turned on by supplying power from the secondary battery 17. In addition, when the start of inspection is instructed by infrared rays from a remote controller (not shown) provided separately from the lighting device 11, the inspection start signal is received via the receiving unit 69 and is the same as when the inspection switch 45 is operated. To work.

  The lighting unit 35 is configured by the power failure detection means 61, the charging circuit 62, the secondary battery 17, the lighting control unit 64, the emergency lighting circuit 66, the control unit 68, the receiving unit 69, the monitor 44, the inspection switch 45, and the like. Yes.

  Next, the operation of the illumination device 11 will be described.

  During normal use when power is supplied from the external power source 18, the secondary battery 17 is charged by the charging circuit 62. Note that the monitor 44 may notify the state of charge of the secondary battery 17, for example, when the secondary battery 17 is fully charged.

  In an emergency when the power supply from the external power supply 18 is stopped, the power failure detection means 61 detects the stop of the power supply from the external power supply 18, and the lighting control unit 64 supplies the light source 33 (light emitting element 32) by the power supply by the secondary battery 17. The emergency lighting circuit 66 is instructed to light up, and the emergency lighting circuit 66 starts lighting control of the light source 33 (light emitting element 32) based on the power supply by the secondary battery 17.

  On the other hand, when the reception unit 69 receives the inspection start signal transmitted from the remote controller or when the inspection switch 45 is operated, the control unit 68 receives the inspection start signal from the reception unit 69 or the inspection switch 45 The operation is detected, the lighting control unit 64 is instructed to stop the charging of the secondary battery 17 by the charging circuit 62, and the lighting control unit 64 stops the charging of the secondary battery 17 by the charging circuit 62. Next, the control unit 68 instructs the lighting control unit 64 to flow current from the lighting control unit 64 to the secondary battery 17, and the lighting control unit 64 flows current to the secondary battery 17. At this time, it is preferable to flow a large current through the secondary battery 17 for about 10 seconds. Next, the lighting control unit 64 detects the impedance of the secondary battery 17 when a current flows. Then, the lighting control unit 64 transmits the detected impedance value of the secondary battery 17, that is, the detected value, to the control unit 68. The control unit 68 receives the detection value transmitted from the lighting control unit 64, compares it with the threshold value stored in the control unit 68, and determines the life of the secondary battery 17 based on the comparison result. Further, the control unit 68 instructs the lighting control unit 64 to control the lighting of the monitor 44 based on the determination result of the life of the secondary battery 17, and the secondary battery by the charging circuit 62 is supplied to the lighting control unit 64. 17 is instructed to resume charging, and the charging circuit 62 charges the secondary battery 17.

  When the receiving unit 69 receives an inspection stop signal for stopping the inspection transmitted from the remote controller, or when the inspection switch 45 is operated to stop the inspection, the inspection stopping operation is performed by the charging circuit 62. When the charging of the secondary battery 17 is not stopped, the control unit 68 instructs the lighting control unit 64 to continue charging the secondary battery 17 by the charging circuit 62, and the charging circuit 62 interrupts the charging. The secondary battery 17 continues to be charged. On the other hand, when the inspection stop operation is after the charging of the secondary battery 17 by the charging circuit 62 is stopped and before or after the current is supplied from the lighting control unit 64 to the secondary battery 17, the control unit 68 is turned on. The control unit 64 is instructed to resume the charging of the secondary battery 17 by the charging circuit 62, and the charging circuit 62 resumes the charging of the secondary battery 17. Then, when the inspection stop operation is after the lighting control unit 64 detects the impedance of the secondary battery 17 when the current flows, the control unit 68 sends the lighting control unit 64 to the charging circuit 62 of the secondary battery 17. The life of the secondary battery 17 is determined based on the instruction to resume charging or the comparison result between the threshold value stored in the control unit 68 and the detected value, and the lighting control unit 64 monitors based on the determination result After the lighting of 44 is controlled, the charging of the secondary battery 17 by the charging circuit 62 may be resumed.

  When the secondary battery 17 is replaced, the decorative frame 20 is removed from the lower part of the main body 15 to remove the secondary battery 17 and the unit part 16 from the state shown in FIG. By disconnecting the connector part to be connected, the secondary battery 17 (battery pack 48) slides from the opening 25 of the main body 15 downward to the light emission direction of the light source 33 (light emitting element 32). Removed. At this time, the unit part 16 is fixed to the main body 15, and the light source 33 (light emitting element 32) and the lens 34 disposed on the mounting surface part 36 of the casing 31 of the unit part 16 are maintained in the same positions. .

  As described above, according to the first embodiment, since the secondary battery 17 can be removed without removing the light source 33 (light emitting element 32), the secondary battery 17 can be easily replaced with less man-hours.

  For example, by using a light emitting diode as the light emitting element 32, the light source 33 and the lens 34 can be reduced in size and concentratedly arranged in a narrow space, so that a space in which only the secondary battery 17 can be removed without removing the light source 33 is formed in the main body 15. it can.

  When a light-emitting diode is used as the light-emitting element 32, the light-emitting diode generally has a life of about 40,000 hours, so there is almost no need for replacement. Therefore, even if the light source 33 (light emitting element 32) is fixed to the main body 15 via the casing 31 of the unit portion 16, the usability is not lowered.

  By arranging the circuit board 43 vertically along the light emitting direction of the light source 33 (light emitting element 32), the monitor 44 and the inspection switch 45 can be arranged at the lower end of the circuit board 43. Accordingly, a separate part such as a reflector for visually recognizing the monitor 44 from the lower side is unnecessary, and the visual recognition can be made directly from the lower side through the decorative frame 20, thereby improving the visibility and further reducing the cost.

  In addition, the emergency lighting device 11 requires a wide light distribution, but the light-emitting diode used as the light-emitting element 32 has a narrow light distribution. Therefore, it is necessary to ensure a predetermined illuminance (1 lux) and a predetermined emergency lighting time (at least 30 minutes). Therefore, in order to obtain sufficient light distribution and illuminance, it is required to improve the arrangement accuracy of the light source 33 (light emitting element 32) and the lens 34, and in order to obtain sufficient heat dissipation time, sufficient heat dissipation is required. It is required to ensure the luminous efficiency of the light source 33 (light emitting element 32). For this reason, when a conventional light source is attached and detached, it is not easy to fix each optical system component to obtain such placement accuracy, and thermal connection to ensure reliable heat dissipation. The structure becomes complicated, which is disadvantageous for maintaining luminous efficiency (heat radiation design). On the other hand, in the present embodiment, the unit portion 16 including the light source 33 (light emitting element 32) and the lens 34 is fixed to the main body 15 and is not removed when the secondary battery 17 is removed. The arrangement accuracy with the lens 34 can be improved, and heat from the light source 33 (light emitting element 32) at the time of lighting can be effectively dissipated through, for example, the housing 31 without using a complicated thermal connection structure. Therefore, it is advantageous in terms of light distribution and heat radiation design.

  In addition, since the terminal block 19 attaches and detaches the electric wire to the connection opening that opens toward the side, dust hardly enters the terminal block 19 from above, and the safety can be further improved. Further, since the terminal block 19 has a release button for releasing the holding of the electric wires on the side of the main body 15, the electric wires can be easily removed without removing the components built in the main body 15 from the main body 15.

  Further, since the terminal block 19 is housed on the circuit board 43 side (housing 31), a storage space for the secondary battery 17 can be secured in the main body 15, and the size of the lighting device 11 can be reduced.

  Next, a second embodiment will be described with reference to FIG. In addition, about the structure and effect | action similar to the said 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  In the second embodiment, the casing 31 of the unit portion 16 of the first embodiment is a heat radiator formed of a material (metal) having excellent heat dissipation properties such as aluminum, for example. The board 41 is thermally connected to the mounting surface portion 36 of the casing 31, and the lighting unit 35 (circuit board 43, etc.) and the secondary battery 17 (battery casing 47) are heated to the casing 31. Connected. The terminal block 19 is disposed on the same side as the secondary battery 17 (battery pack 48) with respect to the circuit board 43 (lighting unit 35).

  During normal use when power is supplied from the external power supply 18, the heat generated by the charging circuit 62 of the lighting unit 35 that charges the secondary battery 17 and the heat generated by the secondary battery 17 are transmitted to the casing 31, respectively. Is radiated through the casing 31 and the main body 15.

  On the other hand, in an emergency in which the power supply from the external power supply 18 is stopped, heat from the light source 33 (light emitting element 32) that is lit is transmitted to the mounting surface portion 36 of the casing 31 through the light source substrate 41, and this heat is transmitted to the casing 31. The heat is dissipated through the main body 15.

  Thus, conventionally, in order to ensure the rated life of the secondary battery, the surface temperature of the secondary battery during normal operation must be kept below a certain level, and the heat dissipation structure of the lighting unit is also required. A heat dissipation structure for the light source (light emitting element) was required.

  Therefore, in the present embodiment, in the case of the emergency lighting device 11, the light source 33 (the light emitting element 32) is not normally lit and heat radiation from the light source 33 (the light emitting element 32) is not necessary. Since the lighting unit 35 including the charging circuit 62 that charges the secondary battery 17 generates heat, the lighting unit 35 that is a heat source can effectively dissipate heat through the casing 31, and the battery surface temperature of the secondary battery 17 can be effectively reduced. Can be easily kept below a certain level. On the other hand, in the event of an emergency such as a power outage, the light emitting element 32 of the light source 33 is turned on and becomes the main heat source, and this light source 33 (light emitting element 32) requires heat dissipation to obtain an appropriate floor surface illumination. Heat dissipation of the light source 33 (light emitting element 32) is advantageous by the casing 31 to which the light source 33 (light emitting element 32) is thermally connected.

  In the second embodiment, the casing 31 itself is a radiator, but a radiator such as a separate radiator plate is provided, and the casing 31 (lighting unit 35), light source 33 (light emitting element 32) and secondary battery 17 are thermally connected to each other, so that heat can be released from the lighting unit 35 and the secondary battery 17 during normal operation and heat from the light source 33 (light emitting element 32) during an emergency. It is good.

  Further, in each of the above-described embodiments, as the function unit, not only the monitor 44 and the inspection switch 45 but also those having various functions can be used.

  Below, the modification of each said embodiment is described.

  (First Modification) Conventionally, a secondary battery is built in the main body, and the charging current and discharging current are individually optimized by combining the lighting unit and the secondary battery according to the load size. It was. However, since the capacity and the number of cells of the secondary battery are selected according to a predetermined category such as an emergency lighting time of 30 minutes, 60 minutes, etc., if individually optimized, there is a need such as lighting for an emergency lighting time of 60 minutes. There was a tendency that the cost of the configuration with less was high. On the other hand, as a trend of recent lighting devices for disaster prevention, for example, emergency lighting time tends to be long in disaster prevention lighting in a basement floor or a large-scale building, and needs are increasing than before. Therefore, a detection means for detecting the voltage of the secondary battery 17 when the lighting unit 35 and the secondary battery 17 are connected is provided on the unit unit 16 side of the lighting unit 35 and the like, for example, the control unit 68 or the like based on this voltage. Recognizes the capacity of the secondary battery 17 and selects and determines the optimum emergency lighting time from the emergency lighting times stored in advance corresponding to the recognized capacity, and the lighting control unit according to this emergency lighting time 64 may determine the discharge current of the secondary battery 17 so that a desired emergency lighting time can be automatically selected by mounting the secondary battery 17. As a result, it becomes possible to change the emergency lighting time (corresponding to different emergency lighting times) just by selecting the secondary battery 17 without changing the main body 15 side such as the lighting unit 35 according to the characteristics of the building, It is possible to provide an illumination device 11 that is an inexpensive and long-lit emergency light.

  (Second Modification) Conventionally, the emergency lighting device 11 has a built-in secondary battery (a secondary battery mounted type) or a separate power source type such as a separate secondary battery. There was nothing to monitor the battery. For example, in the case of a built-in secondary battery, since the emergency lighting time is limited by the capacity of the secondary battery, there are restrictions on the time for safe evacuation or work in an emergency. Therefore, in the so-called combined type lighting device 11 such as an emergency light and a guide light equipped with a regular lighting circuit that turns on the light source 33 (light emitting element 32) by power supply from the external power source 18 at the normal time, the external power source 18 is cut off. Switching device for switching to an emergency power supply (battery) sometimes, monitoring means having a function of monitoring the state (charging voltage) such as the charging state of the secondary battery 17, a built-in secondary battery 17, and a main body 15 Switching means for switching the emergency power supply may be provided in accordance with the charging state (charging voltage) of each of the plurality of secondary batteries with a separate secondary battery installed outside the battery. In this case, when the monitoring means detects that the built-in secondary battery 17 is at the end-of-discharge voltage, the switching means switches the power supply to the secondary battery equipment installed outside the main body 15 and connects it. And the emergency lighting time can be extended. As a result, since the emergency lighting time can be continued for a long time, a more reliable disaster prevention lighting system can be provided even for large-scale buildings.

  (Third modification) The only automatic inspection system for emergency lighting devices such as conventional emergency lights or guide lights is a system that informs the end of life (end of life) of secondary batteries. When it was carried out and the life of the secondary battery was notified, it was necessary to prepare a secondary battery for replacement as soon as possible for maintenance. Therefore, in addition to the detection value for the life judgment of the secondary battery 17 during automatic inspection, a detection value higher than the life judgment for the secondary battery 17 is set to notify the stage level of the life of the secondary battery 17. Also good. That is, the threshold is set at a slightly higher value than the life judgment value of the secondary battery 17 during automatic inspection, and there is no problem as the life judgment value of the secondary battery 17, but it is lower than the near-life judgment value of the secondary battery 17. In such a case, the secondary battery 17 may not be immediately replaced, but the secondary battery 17 may be notified that the life of the secondary battery 17 is approaching. In this way, in addition to the detection value of the life determination of the secondary battery 17 during automatic inspection, a detection value higher than the life determination of the secondary battery 17 is set, and the stage level of the life of the secondary battery 17 is notified. Thus, it becomes possible to prepare a replacement secondary battery 17 before the next inspection. In this system, for example, a remote controller (remote controller) is preferably used. That is, when the inspection command output from the remote controller is received by the receiving unit 69 of the lighting device 11, the inspection is performed, and a transmission unit (transmitting module) is provided in the lighting device 11, and bidirectional communication with the remote controller is performed. It is preferable to adopt a system for informing the remote controller in such a manner. That is, if the notification about the end of the life of the secondary battery 17 is made by the notification by the monitor 44 of the lighting device 11 itself, there is a risk of being confused with the notification at the end of the life of the secondary battery 17, so the notification by the monitor 44 etc. is not performed In addition, for example, by notifying the dedicated remote controller owned by the construction manager, the above confusion can be avoided, and the construction manager can collect information and manage the history with the dedicated remote controller. .

  (Fourth Modification) Conventionally, with regard to the lighting device and the secondary battery, the serial number and specifications are displayed on the nameplate. In addition, although the light source displays the lifetime on the monitor, it does not display the usage period (such as the use start time and the usage period) of the lighting device and the secondary battery. Therefore, in order to check the usage period of the lighting device and the secondary battery, it is necessary to check the name plate of the lighting device and the built-in secondary battery, and it takes time for the checking work. Therefore, a transmitting unit (transmitting module) may be provided in the lighting device 11 to have a function of transmitting (transmitting) information of the lighting device 11, the light source 33, and the secondary battery 17. Specifically, the lighting device 11 counts and transmits the lighting device 11, the light source 33 (light emitting element 32), and the usage period of the secondary battery 17 (the time worn in the main body 15), or the lighting device 11 Alternatively, a manufacturing number (such as a model number) that identifies the secondary battery 17 may be transmitted. Further, it is preferable to use a remote controller (remote controller) for transmitting and receiving these pieces of information. That is, it is preferable to adopt a system in which when the confirmation command output from the remote controller is received by the reception unit 69 of the lighting device 11, information is transmitted from the transmission unit of the lighting device 11 to the remote controller. As a result, the information on the illumination device 11 and the secondary battery 17 can be easily confirmed by the remote controller without confirming the display on the nameplate, so that the maintenance becomes easier. Further, by confirming the usage period of the lighting device 11, the light source 33 (light emitting element 32) and the secondary battery 17 by operating the remote controller, the renewal of the lighting device 11, the light source 33 (light emitting element 32) or the secondary battery 17 is performed. It will be easier to make a plan for replacement. Further, the illumination device 11 may be provided with a use start switch (exchange switch) for starting the use count of the illumination device 11, the light source 33 (light emitting element 32), the secondary battery 17, and the like. Then, when the light source 33 (light emitting element 32), the secondary battery 17, or the like is replaced, a use start switch is turned on, so that the next replacement can be confirmed. Further, this use start switch may be provided in the remote controller, and in this case, maintenance work becomes easier. Furthermore, a general-purpose communication terminal such as a mobile phone, a tablet PC, or a smartphone, or a central control device installed in a building or the like may be used to perform the same operation as the remote controller. For example, when using a communication terminal, for example, based on the manufacturing number transmitted from the lighting device 11, it becomes easy to provide services such as ordering replacement parts using the network, maintenance work is facilitated, and the central control device is installed. When used, the maintenance work for the entire building becomes easier.

  (Fifth Modified Example) Conventional emergency lighting devices are roughly classified into a built-in secondary battery type and a separate power supply type, and the built-in secondary battery type is equipped with a secondary battery for safety. It is excellent, and the separate power supply type is convenient for maintenance and application to other devices because it is centrally managed by an external batch power supply. Recently, infrastructures such as solar cells and DC power supply have been developed. Therefore, in a so-called combined lighting device 11 such as an emergency light or a guide light equipped with a normal lighting circuit, when an external power source 18 for normal lighting is cut off, an emergency power is supplied from an external DC power source. The lighting of the light source 33 (light emitting element 32) may be controlled by supplying power from the DC power supply using a regular lighting circuit without charging the secondary battery 17. Specifically, a backup circuit for a DC power source supplied from the outside is provided by providing a circuit for determining whether the power source is an external power source 18 (AC power source) or a DC power source in addition to the power source monitoring circuit in the regular lighting circuit. Emergency lighting is possible even with a power supply. In addition, when the light source 33 (light emitting element 32) is turned on by the normal lighting circuit by supplying power from the DC power source in an emergency as described above, the dimming function on the normal lighting circuit side is invalidated and fixed emergency lighting is performed. It is preferable to make it. Further, when the external DC power supply is cut off, it is preferable to perform emergency lighting with the internal secondary battery 17. As a result, even in the event of a power outage or an external emergency power supply that supports both a separate power supply system that supplies backup power from an external DC power supply in an emergency and a built-in secondary battery that has a backup power supply installed in each lighting device 11. It is an emergency lighting device 11 that can be lit in an emergency, and can provide an emergency lighting device 11 that maintains more safety.

  (Sixth Modification) Conventionally, although there is a system that only monitors the state of an emergency lighting device, the monitor that informs the life of the secondary battery is a display that blinks or lights up. It is not easy to grasp in detail the timing of battery replacement and the state of charge. Therefore, a unit that monitors the capacity of the secondary battery 17 and controls charging according to the remaining amount of the secondary battery 17 may be provided. In particular, when a lithium ion battery is used as the secondary battery 17 in recent years, the discharge curve can be predicted more easily than the conventional battery (nickel metal hydride battery). Can manage. Further, in order to display the monitoring result of the capacity of the secondary battery 17 with a numerical value, for example, display means such as an organic EL monitor may be provided. In this case, the degree of charging of the secondary battery 17 can be specifically grasped. Furthermore, a monitoring unit that counts the time until the secondary battery 17 is fully charged from the empty state and monitors the difference in the charged state of the secondary battery 17 may be provided. As a result, the state of the secondary battery 17 can be accurately grasped as necessary during normal operation and inspection, and appropriate replacement maintenance can be performed, so that a stable disaster prevention system can be provided.

  (Seventh Modification) In the case of a recent lighting device using a light emitting diode as a light emitting element of a light source, since a short circuit detection of the light emitting diode module is required, a system for monitoring the state of the light source (light emitting element) Is becoming necessary. Therefore, in the so-called combined type lighting device 11 such as an emergency light and a guide light provided with a regular lighting circuit, the regular lighting circuit may be controlled by, for example, a general-purpose DALI (Digital Addressable Lighting Interface) signal. In this case, the DALI protocol can be used to monitor the status of normal lighting and emergency lighting, and the address can be easily assigned by DALI, so that the conventional emergency lighting device 11 can be automatically checked. It is possible to provide an emergency inspection system that can simplify the address assignment for the system, can be monitored at both low cost and during normal lighting, and is inexpensive.

  (Eighth Modification) Conventionally, power input harmonics are defined in JIS C61000-3-2, and it is not easy to satisfy the harmonic standard class C in an emergency light power source that is a capacitor input circuit. As the simplest method for suppressing the harmonic current, an active filter circuit may be added, but it is expensive in price and the number of parts increases. Moreover, although the harmonic current can be improved by reducing the capacitance of the capacitor itself, which is a capacitor input, a so-called voltage-free type lighting device corresponding to a wide range of power supply voltages, when the power supply voltage is used in a 100V system. The ripple on the secondary side or the voltage difference in charging / discharging the electrolytic capacitor on the primary side becomes large, and stress is applied to the electrolytic capacitor. Therefore, in a so-called combined lighting device 11 such as an emergency light or a guide light equipped with a regular lighting circuit, the power supply monitoring means for monitoring the power supply voltage for the emergency power supply, and the power supply voltage monitored by the power supply monitoring means Correspondingly, capacity switching means for switching the capacity of the rectifying capacitor may be provided. And it becomes possible to solve the above problems by switching the capacitor capacity of the emergency light power source, which is a capacitor input, between the 100V system and the 200V system. Specifically, in the case of the 100V system, since the input current of the power supply becomes larger than that of the 200V system, it is not necessary to suppress the harmonic current so much, so a rectifying capacitor having a relatively large capacity is selected. On the other hand, in the case of the 200V system, since the input current of the power source is reduced, a rectifying capacitor having a relatively small capacity is selected. The switching of the capacitance of the capacitor is configured such that the power supply voltage is monitored by the power supply monitoring unit, and the capacitance is switched using, for example, a semiconductor switch as the capacitance switching unit. As a result, it is not necessary to add an active filter circuit, and even in the voltage-free type lighting device 11, the harmonic current can be easily switched and suppressed with an easy circuit configuration. The power monitoring means may be shared with a switching voltage circuit that switches between normal use and emergency lighting.

  According to at least one embodiment described above, the secondary battery 17 can be easily attached to and detached from the main body 15 without removing or moving the light source 33 (light emitting element 32) from the main body 15. Further, the cost can be reduced by reducing the number of components such as a reflector for making the monitor 44 visible from below.

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

11 Lighting equipment
15 body
Unit unit as 16 units
17 Secondary battery
18 External power supply
31 Housing as a radiator
32 Light emitting element
34 Lens as an optical control member
35 Lighting unit
43 Circuit board
44 Monitor as functional part
45 Inspection switch as functional part

Claims (4)

A body that is open at one end;
A unit having a light emitting element provided on one end side of the main body and an optical control member for controlling light distribution of the light emitting element, and mounted in the main body;
A secondary battery that is provided separately from the unit, and is attachable to and detachable from the main body along the light emitting direction of the light emitting element from one end side of the main body;
A circuit board provided along the light emitting direction of the light emitting element, and a functional part mounted on an end of the circuit board and facing one end of the main body, and housed in the unit The secondary battery is charged at the time of non-power failure by power supply from an external power source, and the light emitting element is turned on by power supply from at least one of the external power source and the secondary battery at the time of power failure or inspection A lighting unit to be
An illumination device comprising: The unit is secured to the body;
The lighting device according to claim 1, wherein the secondary battery is detachable from the main body without removing the light emitting element from the main body. The lighting device according to claim 1, wherein the optical control member is a lens that diffuses light from the light emitting element. A heat dissipating body that is housed in the main body and dissipates heat from the lighting unit side when no power failure occurs, and dissipates heat from the light emitting element when the light emitting element emits light. Item 4. The lighting device according to any one of Items 1 to 3.

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