JP2021108292A - Luminaire - Google Patents

Abstract

To restrain a deterioration in charging characteristics of an emergency power source unit while restraining an increase in size of a luminaire body.SOLUTION: An emergency illuminating device also comprises a cover 7 comprising a hole 711 through which light emitted from an emergency light source unit 4 is passed, and covering the emergency light source unit 4. A luminaire body 10 houses the emergency illuminating device arranged next to a normal illuminating device 2. An emergency power source unit 5 is housed in the luminaire body 10 so as not to overlap with the emergency light source unit 4 as viewed from a predetermined direction. The predetermined direction is a direction orthogonal to a direction (horizontal direction) in which the normal illuminating device 2 and the emergency illuminating device are arranged, and a direction (vertical direction) in which the normal illuminating device 2 and the emergency illuminating device protrude outside the luminaire body 10. The cover 7 comprises a part (second cover 72) arranged between the normal illuminating device 2 and the emergency illuminating device.SELECTED DRAWING: Figure 11

Description

The present invention relates to a luminaire, and more particularly to a luminaire that performs regular lighting and emergency lighting.

As a conventional example, the lighting equipment described in Patent Document 1 will be illustrated. This conventional example includes a fixture body, a regular light source unit for regular lighting, and an emergency lighting device for emergency lighting. The instrument body is formed in the shape of a long and rectangular box with an open bottom surface. The common light source unit includes a plurality of LED modules, a mounting member to which each LED module is mounted, a cover attached to the mounting member so as to cover each LED module, and a power supply device for lighting each LED module. .. The normal light source unit is housed in the fixture body so that the cover is exposed from the lower surface of the fixture body.

The emergency lighting device includes an emergency light source unit and a control device. The emergency light source unit includes an LED module, a lens, a cover, an emergency power supply (storage battery), and the like. A lens is placed in front of the LED module. The cover is placed in front of the LED module with the lens exposed forward. The emergency power supply is located behind the LED module. The control device includes a charging circuit that charges the emergency power supply with the electric power supplied from the regular power supply, and an emergency power supply circuit that lights the LED module using the emergency power supply as the power supply when the regular power supply fails. Further, the control device includes a control circuit that receives an operation input from the inspection switch and performs an inspection operation. The regular power supply is, for example, a power supply (commercial AC power supply) that supplies power to the power supply device of the regular light source unit.

Japanese Unexamined Patent Publication No. 2016-134208

By the way, the charging characteristics of a storage battery as an emergency power source, for example, a nickel-metal hydride battery, show a characteristic that the charging efficiency decreases as the temperature rises. Therefore, it is preferable that the emergency power supply is arranged as far as possible from the heat source (light source, power supply device for lighting the light source, control device, etc.). However, in order for the emergency power supply to be arranged away from the heat source, there is a possibility that the size of the appliance main body supporting the emergency power supply and the heat source may be increased.

An object of the present invention is to provide a lighting fixture capable of suppressing a decrease in charging characteristics of an emergency power supply unit while suppressing an increase in the size of the fixture body.

The lighting equipment according to one aspect of the present invention includes a regular lighting device that performs regular lighting, an emergency lighting device that performs emergency lighting, and an appliance main body that houses the regular lighting device and the emergency lighting device. There is. The emergency lighting device controls an emergency light source unit, an emergency power supply unit having at least one storage battery, and a control that charges the storage battery and lights the emergency light source unit with electric power discharged from the storage battery. It is equipped with a device. The emergency lighting device further includes a cover having a hole through which light emitted from the emergency light source unit passes and covering the emergency light source unit. The appliance main body accommodates the emergency lighting device side by side next to the regular lighting device. The emergency power supply unit is housed in the instrument body so as not to overlap the emergency light source unit when viewed from a predetermined direction. The predetermined direction is a direction orthogonal to the direction in which the regular lighting device and the emergency lighting device are lined up, and is a direction in which the regular lighting device and the emergency lighting device project out of the main body of the appliance. The cover includes a portion arranged between the regular lighting device and the emergency lighting device.

INDUSTRIAL APPLICABILITY The present invention can provide a lighting fixture capable of suppressing a decrease in charging characteristics of an emergency power supply unit while suppressing an increase in the size of the fixture body.

FIG. 1 is an exploded perspective view of a luminaire according to an embodiment of the present invention. FIG. 2A is a front view of the lighting fixture of the same. FIG. 2B is a plan view of the lighting fixture of the same. FIG. 2C is a left side view of the lighting fixture of the same. FIG. 3 is a perspective view of the emergency lighting device in the same lighting fixture. FIG. 4A is a front view of the emergency lighting device of the same as above. FIG. 4B is a plan view of the above-mentioned emergency lighting device. FIG. 4C is a right side view of the above-mentioned emergency lighting device. FIG. 5A is a rear view of the above-mentioned emergency lighting device. FIG. 5B is a bottom view of the above-mentioned emergency lighting device. FIG. 6 is an exploded perspective view of the above-mentioned emergency lighting device. FIG. 7 is a cross-sectional view of the above-mentioned emergency lighting device. FIG. 8 is an exploded perspective view of the above-mentioned emergency lighting device. FIG. 9 is an exploded perspective view of the emergency light source unit and the control device in the same lighting equipment. FIG. 10 is an exploded perspective view of the emergency power supply unit in the same lighting fixture. FIG. 11 is an exploded perspective view of the same lighting fixture with a part omitted.

An embodiment of the lighting fixture according to the present invention will be described in detail with reference to the drawings. The lighting fixture 1 of the present embodiment is, for example, a ceiling-mounted lighting fixture directly attached to the ceiling of an office or the like, but it may be a ceiling-embedded lighting fixture or a wall-mounted lighting fixture. good. The configuration described in the following embodiments is only an example of the present invention. The present invention is not limited to the following embodiments, and various modifications can be made depending on the design and the like as long as the effects of the present invention can be achieved.

As shown in FIGS. 1 and 2A to 2C, the lighting fixture 1 of the present embodiment includes a regular lighting device 2 that performs regular lighting, an emergency lighting device 3 that performs emergency lighting, a regular lighting device 2, and an emergency. It is provided with an instrument main body 10 for accommodating the lighting device 3. In the following description, unless otherwise specified, the vertical, horizontal, and front-back directions of the luminaire 1 are defined in the directions shown in FIG.

The instrument body 10 is formed of a metal material into a long box shape. The instrument main body 10 has a long rectangular flat plate-shaped top plate 11 and a pair of first side plates 12 protruding downward from each of the two end edges along the longitudinal direction (left-right direction) of the top plate 11. is doing. The instrument main body 10 further has a pair of second side plates 13 projecting downward from each of the two end edges along the lateral direction (front-back direction) of the top plate 11. Further, the instrument body 10 has an opening on the lower surface facing the top plate 11. The top plate 11 has a hole 110 for passing an electric wire at substantially the center in the left-right direction thereof. Further, the top plate 11 has holes 111 for passing suspension bolts at positions near both ends in the left-right direction thereof (see FIG. 1). Further, a terminal block 14 to which an electric wire drawn from the hole 110 is connected is attached to the lower surface of the top plate 11.

The regular lighting device 2 includes a regular light source, a mounting member 21 to which the regular light source is attached, a translucent cover 20 that covers the regular light source, and a power supply device that lights the regular light source. A common light source has a long substrate and a large number of LEDs (light emitting diodes) mounted on the surface of the substrate. The mounting member 21 is formed of a metal material in the shape of a long gutter. The mounting member 21 has a bottom plate formed in the shape of a long rectangular plate, and a pair of side plates 210 that rise upward from both ends in the lateral direction (front-back direction) of the bottom plate. The common light source is mounted on the lower surface of the bottom plate of the mounting member 21. The power supply device is configured to convert AC power supplied from a regular power source (for example, a commercial AC power source) via a terminal block 14 into DC power. The power supply is mounted on the upper surface of the bottom plate of the mounting member 21. The common light source and the power supply device are electrically connected by an electric wire inserted into an insertion hole provided in the bottom plate. A common light source is turned on by supplying DC power from a power supply device via an electric wire.

The translucent cover 20 is formed in a long box shape having an open upper surface made of a translucent synthetic resin material such as an acrylic resin or a polycarbonate resin. The lower surface of the translucent cover 20 is formed in a curved shape that gently projects downward from both ends toward the center in the lateral direction (front-rear direction) (see FIG. 1). A diffusing material is mixed in the synthetic resin material forming the translucent cover 20. That is, the light radiated from the common light source is diffused when passing through the translucent cover 20.

In the normal lighting device 2, a portion other than the translucent cover 20 (a pair of side plates 210 of the mounting member 21, a power supply device, etc.) is housed in the fixture body 10, and the translucent cover 20 projects downward from the opening of the fixture body 10. It is attached to the instrument body 10 in such a manner (see FIGS. 2A to 2C). Further, the regular lighting device 2 is detachably attached to the fixture main body 10 so as to close most of the opening of the fixture main body 10 with the translucent cover 20 (see FIGS. 2A to 2C). Here, the fixture main body 10 forms a space (dead space) between the mounting member 21 of the regular lighting device 2 and the top plate 11. Then, the power supply device of the regular lighting device 2 is arranged in the dead space of the fixture main body 10. However, since the structure in which the regular lighting device 2 is detachably attached to the fixture main body 10 is the same as the conventional example described in Patent Document 1, detailed description and illustration will be omitted.

Next, the emergency lighting device 3 will be described in detail with reference to the drawings.

The emergency lighting device 3 includes an emergency light source unit 4, an emergency power supply unit 5, a control device 6, a cover 7, and a holding tool 8 (see FIGS. 1 to 8).

As shown in FIGS. 7 and 8, the emergency light source unit 4 includes an LED module 40, a holder 41, a pair of terminal plates 42, a heat radiating sheet 43, and a lens 44. The LED module 40 is configured by mounting at least one LED chip in the center of a rectangular flat plate-shaped mounting board 400. The LED chip is preferably, for example, a blue light emitting diode that emits blue light. Further, the mounting surface (lower surface) of the mounting substrate 400 including the LED chip is sealed with a sealing resin 401 mixed with a fluorescent substance that converts the wavelength of blue light emitted from the LED chip (see FIG. 8). .. Further, the mounting substrate 400 has electrodes on the lower surfaces of the pair of corner portions at diagonal positions thereof. One electrode is electrically connected to the cathode of the LED chip and the other electrode is electrically connected to the anode of the LED chip. Further, these two electrodes are electrically connected to the corresponding terminal board 42 of the pair of terminal boards 42.

The lens 44 is made of glass, for example, and has a lens body 440 and an annular outer collar portion 441 that projects outward from the peripheral edge of the lens body 440 (see FIG. 8). The lens 44 is preferably a wide-angle light distribution lens that has an aspherical shape of an entrance surface 442 and an exit surface 443 (see FIG. 7) and realizes a so-called batwing-like light distribution characteristic. However, the lens 44 may be made of a synthetic resin material (for example, polycarbonate resin) whose heat resistance (flame retardancy) is improved by mixing glass fibers.

The heat radiating sheet 43 is preferably made of a sheet material made of a silicone resin having high thermal conductivity, electrical insulation and flame retardancy. The heat radiating sheet 43 is in contact with the upper surface of the mounting board 400 of the LED module 40.

The holder 41 is preferably formed of a synthetic resin material such as a polycarbonate resin in a substantially rhombus shape when viewed from above and below (see FIG. 8). The holder 41 holds the LED module 40 and the lens 44 so that the lens body 440 of the lens 44 is overlapped on the light emitting surface (lower surface) of the LED module 40. Further, the holder 41 has a terminal board holding portion 410. The terminal plate holding portion 410 is formed in a square tubular shape extending upward, and houses and holds a pair of terminal plates 42 inside (see FIGS. 7 and 8).

As shown in FIG. 10, the emergency power supply unit 5 includes a plurality of dry battery type storage batteries (five in the illustrated example), a case 51 made of a synthetic resin material accommodating the plurality of storage batteries 50, and a first conductor. It includes 54 and a second conductor 55. The case 51 has a case body 52 and a case cover 53. The case body 52 has a rectangular bottom wall 520 and a pair of first side walls 521 protruding downward from both front and rear edges of the bottom wall 520. Further, the case body 52 has a second side wall 522 protruding downward from the right end edge of the bottom wall 520, and a third side wall 523 protruding downward from the left end edge of the bottom wall 520. However, the third side wall 523 is formed so as to be higher in the vertical direction than the pair of the first side wall 521 and the second side wall 522.

The bottom wall 520 has five abutment portions 526 that project downward from its lower surface. These five abutment portions 526 are arranged in the left-right direction on the lower surface of the bottom wall 520. Further, the lower surface of each abutment portion 526 is formed in a semi-cylindrical surface shape. One storage battery 50 is mounted and supported on the lower surface of each abutment portion 526 (see FIG. 7). However, the leftmost abutment portion 526 of the five abutment portions 526 is located below the other four abutment portions 526.

Each pair of first side walls 521 has a pair of projecting pieces 5210. The pair of projecting pieces 5210 are formed in a rectangular plate shape and project downward from the lower end of the first side wall 521. Further, each projecting piece 5210 has a triangular columnar claw 5211 at its tip (lower end). However, the claws 5211 of each projecting piece 5210 included in the front first side wall 521 project forward, and the claws 5211 of each projecting piece 5210 included in the rear first side wall 521 project rearward.

The protrusion 524 projects to the right from the rear end on the right side surface of the second side wall 522. The protrusion 524 is formed in a substantially rectangular parallelepiped shape. However, it is preferable that the lower right side of the protrusion 524 is formed in a convex curved surface shape.

The third side wall 523 is formed in the shape of a rectangular plate. The third side wall 523 has a terminal holding portion 527 at the lower front portion on the left side surface thereof. The terminal holding portion 527 is formed in a square tubular shape in which the axial directions coincide with each other in the vertical direction. Further, the space inside the terminal holding portion 527 is divided into two by a partition wall 5270 (see FIG. 10). Further, the terminal holding portion 527 has a rectangular plate-shaped guide piece 5271 at the upper end portion on the front surface thereof. The guide piece 5271 projects forward from the front surface of the terminal holding portion 527 so that the thickness direction coincides with the left-right direction.

The case cover 53 includes a rectangular first bottom wall 530, a rectangular first side wall 531 projecting diagonally downward to the left from the left edge of the first bottom wall 530, and a first bottom wall 530 and a first side wall 531. It has a pair of second side walls 532 that project upward from both front and rear edges. Further, the case cover 53 has a third side wall 533 that projects upward from the right end edge of the first bottom wall 530, and a second bottom wall 534 that projects leftward from the left end edge of the first side wall 531. is doing.

Each of the pair of second side walls 532 has a pair of through holes 5320. Further, the front second side wall 532 is formed in a stepped shape.

The third side wall 533 has a projecting piece 5330. The projecting piece 5330 projects upward from the upper end near the rear end of the third side wall 533. Further, the projecting piece 5330 has a triangular columnar claw 5331 at its tip (upper end). The claw 5331 projects to the right from the right side surface at the upper end of the projecting piece 5330.

The second bottom wall 534 is formed in the shape of a rectangular plate. The second bottom wall 534 has a lid portion 535 at its front left end. The lid portion 535 is formed so that the shape seen from the left-right direction is U-shaped.

The five storage batteries 50 are arranged so as to be arranged alternately along the respective radial directions. One end (right end) of the first conductor 54 is electrically connected to the negative electrode terminal of the storage battery 50 at the right end. Further, one end (right end) of the second conductor 55 is electrically connected to the positive electrode terminal of the storage battery 50 at the left end. The positive electrode terminal of the storage battery 50 at the right end and the negative electrode terminal of the storage battery 50 second from the right are electrically connected by the conductor plate 56. The positive electrode terminal of the second storage battery 50 from the right and the negative electrode terminal of the third storage battery 50 from the right are electrically connected by the conductor plate 56. The negative electrode terminal of the leftmost storage battery 50 and the positive electrode terminal of the second storage battery 50 from the left are electrically connected by the conductor plate 56. The positive electrode terminal of the third storage battery 50 from the right and the negative electrode terminal of the second storage battery 50 from the left are electrically connected by the conductor plate 56. That is, the five storage batteries 50 are electrically connected in series by the four conductor plates 56.

The first conductor 54 is formed in an S shape by a metal plate (see FIG. 10). One end (right end) of the first conductor 54 in the longitudinal direction is electrically connected to the negative electrode terminal of the right end storage battery 50. The first conductor 54 has a first contact 57 at the other end (left end) in the longitudinal direction thereof. The first contact 57 has a square tubular frame body 570 and a spring body housed in the frame body 570. The spring body is coupled to the upper end of the frame body 570 and is integrally formed with the frame body 570 so as to be flexible in the left-right direction in the frame body 570. The first conductor 54 is housed in the case body 52 along the upper first side wall 521 and the third side wall 523. Further, the first contact 57 is housed in the space above the partition wall 5270 of the two spaces in the terminal holding portion 527.

The second conductor 55 is formed in an S shape by a metal plate. One end (right end) of the second conductor 55 in the longitudinal direction is electrically connected to the positive electrode terminal of the left end storage battery 50. The second conductor 55 has a second contact 58 at the other end (left end) in the longitudinal direction thereof. The second contact 58 has a square tubular frame body and a spring body housed in the frame body. The spring body is coupled to the upper end of the frame body and is integrally formed with the frame body so as to be flexible in the left-right direction in the frame body. The second conductor 55 is housed in the case body 52 along the lower first side wall 521 and the third side wall 523. Further, the second contact 58 is housed in the space below the partition wall 5270 among the two spaces in the terminal holding portion 527.

The case 51 is assembled by connecting the case cover 53 to the case body 52 (see FIG. 8). Each of the four projecting pieces 5210 of the case body 52 is inserted into the corresponding through hole 5320 of the four through holes 5320 of the case cover 53. Further, the projecting piece 5330 included in the case cover 53 is inserted into the through hole 5240 provided in the projecting portion 524 of the case body 52. Then, the claws 5211 and 5331 provided at the tips of the projecting pieces 5210 and 5330 are hooked on the edges of the through holes 5320 and 5240, respectively, to connect the case body 52 and the case cover 53. The opening on the lower side of the terminal holding portion 527 of the case body 52 is closed by covering the lid portion 535 of the case cover 53 (see FIG. 8).

As shown in FIG. 9, the control device 6 includes a first circuit block 60, a second circuit block 61, a housing 62, and a heat sink 63. The first circuit block 60 includes a rectangular plate-shaped first printed wiring board 600, a plurality of types of electronic components 601, a receiving side connector 64, an input terminal block 603, an output connector 602, and a first connector 604. Among the plurality of types of electronic components 601, the electronic component 601 with a lead is inserted and mounted on the lower surface (component surface) of the first printed wiring board 600. Further, among the plurality of types of electronic components 601, the surface mount type electronic component 601 is surface-mounted on the upper surface (solder surface) of the first printed wiring board 600 (see FIG. 7). However, the receiving side connector 64, the input terminal block 603, the output connector 602, and the first connector 604 are also inserted and mounted on the component side of the first printed wiring board 600.

The output connector 602 has a pair of contacts 6020 (see FIG. 9). Each contact 6020 of the output connector 602 contacts and conducts with the corresponding terminal board 42 of the pair of terminal boards 42 of the emergency light source unit 4.

The receiving side connector 64 has a first contact receiving 641, a second contact receiving 642, and a base 640 (see FIG. 9). The base 640 is formed in a rectangular plate shape by a synthetic resin material having electrical insulation. The first contact receiver 641 and the second contact receiver 642 are formed in a rod shape and are supported by the base 640 in a state of penetrating the base 640 in the thickness direction. The first contact receiver 641 and the first contact 57 are pressed against the frame 570 by the spring body in the frame 570 in a state of being inserted into the frame 570 of the first contact 57 of the emergency power supply unit 5. It is electrically connected. The second contact receiver 642 is electrically connected to the second contact 58 by being pressed against the frame by a spring body inside the frame while being inserted into the frame of the second contact 58 of the emergency power supply unit 5. NS.

The first circuit block 60 is composed of printed wiring formed on the first printed wiring board 600 and a plurality of types of electronic components 601 mounted on the component surface and the solder surface of the first printed wiring board 600. It has a printed circuit (see FIGS. 7 and 9). The printed circuit of the first circuit block 60 includes, for example, a DC power supply circuit, a charging circuit, a lighting circuit, a power failure detection circuit, and a control circuit. The DC power supply circuit is composed of, for example, a self-excited switching power supply circuit such as a ringing choke converter, and is configured to convert an AC voltage input from a regular power supply to the input terminal block 603 into a DC voltage. The charging circuit is configured to output a constant charging current through the receiving connector 64 when power is being supplied from the regular power source. The lighting circuit is configured to constantize the direct current input from the emergency power supply unit 5 to the receiving side connector 64 and supply the constant current to the emergency light source unit 4 from the output connector 602. .. The power failure detection circuit is configured to detect a power failure of the regular power supply based on the output voltage of the DC power supply circuit and notify the control circuit. The control circuit is configured to operate the charging circuit and stop the lighting circuit when the power failure detection circuit does not detect a power failure of the normal power supply. Further, the control circuit is configured to stop the charging circuit and operate the lighting circuit when the power failure detection circuit detects a power failure of the normal power supply.

The second circuit block 61 has a rectangular plate-shaped second printed wiring board 610, two push button switches 611 and 612, a display element 613, a light receiving element 614, and a second connector 615 (see FIG. 9). The second connector 615 is mounted at one end (front end) in the longitudinal direction on the lower surface of the second printed wiring board 610. One push button switch 611 is mounted behind the second connector 615 on the lower surface of the second printed wiring board 610. The other push button switch 612 is mounted on the other end (rear end) in the longitudinal direction on the lower surface of the second printed wiring board 610. The display element 613 has, for example, an LED chip that emits green light. The display element 613 is mounted in front of the push button switch 612 on the lower surface of the second printed wiring board 610. The light receiving element 614 is configured to receive a control signal using infrared rays as a communication medium and demodulate the transmission frame from the received control signal. This control signal is transmitted from a remote controller operated by an operator who performs periodic inspection work. The light receiving element 614 is mounted between the display element 613 and the push button switch 611 on the lower surface of the second printed wiring board 610. The second connector 615 is electrically connected to the first connector 604 of the first circuit block 60, for example, by a cable. The control circuit of the first circuit block 60 is configured to monitor the operating state (on and off) of the push button switches 611 and 612 through a cable. Further, the control circuit is configured to receive the transmission frame of the control signal demodulated by the light receiving element 614 through the cable. Further, the control circuit is configured to cause the display element 613 to emit light by passing a current through the cable to the display element 613 when the charging circuit of the first circuit block 60 is operating.

The control circuit is configured to perform a periodic inspection operation when one of the push button switches 611 is turned on and when a transmission frame is received from the light receiving element 614. The control circuit that performs the periodic inspection operation stops the charging circuit and operates the lighting circuit. Further, the control circuit is configured to perform a self-inspection operation when the other push button switch 612 is turned on. The control circuit that performs the self-inspection operation stops the charging circuit and operates the lighting circuit for several seconds, then stops the lighting circuit again and operates the charging circuit. However, it is preferable that the control circuit is configured to perform the self-inspection operation even when the transmission frame instructing the self-inspection operation is received from the light receiving element 614.

The housing 62 has a first housing 620 and a second housing 621. The first housing 620 has a bottom portion 6200 and a side wall portion 6201. The bottom 6200 is formed in a substantially rectangular box shape. The bottom portion 6200 is configured to support the solder surface of the first printed wiring board 600 of the first circuit block 60 from the thickness direction (vertical direction). The side wall portion 6201 is formed in a plate shape. The side wall 6201 is connected to the bottom 6200 via a hinge. Therefore, the side wall portion 6201 is configured to be rotatable with respect to the bottom portion 6200 about the hinge. Further, the side wall portion 6201 is configured to support the second printed wiring board 610 of the second circuit block 61 by sandwiching the end portion (left end portion) along the longitudinal direction from the thickness direction.

The second housing 621 is formed in a box shape with the upper surface and the left side open. The second housing 621 is coupled to the first housing 620. The upper surface of the second housing 621 is closed by the bottom 6200 of the first housing 620. Further, the left side surface of the second housing 621 is closed by the side wall portion 6201 of the first housing 620 (see FIG. 7).

The second housing 621 has a pedestal portion 6210 that projects downward from the left end of the lower surface (see FIG. 9). The abutment portion 6210 is formed in a substantially pyramidal shape. The abutment portion 6210 has two operating members (a first operating member 6214 and a second operating member 6215). The first operating member 6214 is provided at the front end on the lower surface of the abutment portion 6210. The second operating member 6215 is provided at the rear end of the lower surface of the abutment portion 6210. The first operating member 6214 and the second operating member 6215 are configured to be movable in the vertical direction with respect to the lower surface of the abutment portion 6210. That is, when the first operating member 6214 pushed upward pushes the push button of the push button switch 611, the push button switch 611 is turned on. Further, when the second operating member 6215 pushed upward pushes the push button of the push button switch 612, the push button switch 612 is turned on. Further, the pedestal portion 6210 has two circular windows 6216 and 6217 between the first operating member 6214 and the second operating member 6215 on the lower surface thereof. The front window 6216 faces the light receiving element 614 of the second circuit block 61 in the vertical direction. The rear window 6217 faces the display element 613 of the second circuit block 61 in the vertical direction. That is, the control signal transmitted from the remote controller reaches the light receiving element 614 through the front window 6216. Further, the light (green light) emitted by the display element 613 is radiated to the outside of the housing 62 through the rear window 6217.

Further, the second housing 621 has three openings 6211, 6212, 6213 at the right end. These three openings 6211, 6212, 6213 are arranged in a row along the front-rear direction (see FIG. 9). The opening 6211 at the front end faces the receiving side connector 64 of the first circuit block 60. The input terminal block 603 is inserted through the opening 6213 at the rear end. The central opening 6212 faces the output connector 602 (see FIG. 8).

The heat sink 63 has a mounting portion 630 to which the emergency light source unit 4 is mounted, a pair of leg portions 631, and a pair of fixing portions 632 (see FIG. 9). The mounting portion 630 is formed in a substantially trapezoidal shape. The pair of leg portions 631 are formed in a flat plate shape and project upward from the front end and the rear end of the mounting portion 630. The pair of fixing portions 632 project from the upper ends of the pair of leg portions 631 in the direction of approaching each other in the front-rear direction. However, it is preferable that the mounting portion 630, the pair of leg portions 631, and the pair of fixing portions 632 are integrally formed of a plate material made of aluminum or an aluminum alloy.

As shown in FIG. 8, the heat radiating plate 63 has a pair of fixed portions having a mounting portion 630 facing the lower surface of the second housing 621 and a pair of leg portions 631 facing the front surface and the rear surface of the second housing 621. The 632 is attached to the housing 62 so as to be hooked on the upper surface of the bottom 6200 of the first housing 620. Further, the heat radiating plate 63 is formed by fitting the protrusions 6218 protruding from the upper and lower ends of the upper surface and the lower surface of the second housing 621 into each of the rectangular fitting holes 633 provided in the pair of leg portions 631. It is positioned with respect to the housing 62 (see FIGS. 8 and 9).

The emergency light source unit 4 is attached to the attachment portion 630 by screwing the holder 41 to the screw holes 6300 provided in the attachment portion 630 of the heat sink 63 with two mounting screws 45. (See FIGS. 6-9). Further, in the emergency light source unit 4, the terminal plate holding portion 410 of the holder 41 is plugged and connected to the output connector 602 exposed from the central opening 6212 of the second housing 621, so that the first control device 6 is connected. It is electrically connected to the circuit block 60 (see FIG. 7). Further, the LED module 40 is thermally coupled to the mounting portion 630 of the heat radiating plate 63 via the heat radiating sheet 43 (see FIG. 7).

The control device 6 is housed in the left end of the instrument body 10 (see FIG. 11). The control device 6 is preferably fixed to the instrument main body 10 by screwing a pair of fixing portions 632 of the heat radiating plate 63 to the top plate 11. Therefore, the heat generated by the LED module 40 is conducted from the heat radiating sheet 43 to the heat radiating plate 63, and further conducted from the heat radiating plate 63 to the instrument main body 10 to be dissipated.

As shown in FIG. 6, the presser foot 8 has a main piece 80, a hook piece 81, a side piece 82, a first insertion piece 83, a second insertion piece 84, and a third insertion piece 85. The main piece 80, the hook piece 81, the side piece 82, the first insertion piece 83, the second insertion piece 84, and the third insertion piece 85 are preferably integrally formed by a metal plate.

The main piece 80 is formed in an L shape when viewed from below. The main piece 80 has an internal thread portion 800. The hook piece 81 has a curved portion 810 curved in an arc shape, a connecting portion 811 connecting the curved portion 810 and the main piece 80, and a rectangular flat portion 812 protruding from the lower end of the curved portion 810 ( 4A-4C and 6). The hook piece 81 is connected to the lower part of the left end of the main piece 80 by the connecting portion 811. The hook piece 81 is configured so that the curved portion 810 can be displaced in the left-right direction by bending the connecting portion 811 in the thickness direction. The side piece 82 is formed in a rectangular shape. The side piece 82 projects downward and leftward from the rear end of the main piece 80. The lower part of the side piece 82 is inclined toward the rear. The first insertion piece 83 and the second insertion piece 84 are formed in an L shape when viewed from the front-rear direction (see FIGS. 4B and 5B). The second insertion piece 84 is preferably formed by cutting into the main piece 80. The third insertion piece 85 is formed in an L shape when viewed from the front-rear direction (see FIGS. 4B and 5B). The third insertion piece 85 projects upward from the upper end of the left end of the side piece 82 (see FIG. 4B).

In the presser foot 8, the first insertion piece 83, the second insertion piece 84, and the third insertion piece 85 are inserted one-to-one into the three holes penetrating the top plate 11, and the first insertion piece 8 is inserted. Each of the 83, the second insertion piece 84, and the third insertion piece 85 is configured to sandwich the top plate 11. Then, the holding tool 8 is attached to the lower surface of the top plate 11 by screwing the screw inserted into the screw insertion hole provided in the top plate 11 into the female screw portion 800 of the main piece 80 (see FIG. 11).

The emergency power supply unit 5 is arranged between the control device 6 attached to the top plate 11 of the instrument main body 10 and the holding tool 8 (see FIG. 11). The emergency power supply unit 5 is housed in the space between the control device 6 and the holding tool 8 in the instrument main body 10 with the case body 52 facing the top plate 11. The terminal holding portion 527 of the emergency power supply unit 5 is inserted into the housing 62 through the opening 6211 at the front end of the second housing 621. At this time, the guide piece 5217 of the terminal holding portion 527 is guided to the guide groove 6219 provided at the right end of the front surface of the second housing 621 (see FIG. 6). Then, the first contact 57 of the emergency power supply unit 5 is electrically connected to the first contact receiver 641 of the control device 6. Further, the second contact 58 of the emergency power supply unit 5 is electrically connected to the second contact receiver 642 of the control device 6. Further, the emergency power supply unit 5 is supported by the holding tool 8 by hooking the curved portion 810 of the hooking piece 81 of the holding tool 8 on the protrusion 524 provided on the case 51 (see FIGS. 4A and 8). .. Here, when the connecting portion 811 of the hook piece 81 is bent by the force applied to the flat portion 812, the curved portion 810 is displaced to the right and the hook between the curved portion 810 and the protrusion 524 is released. When the emergency power supply unit 5 is pulled downward with the curved portion 810 and the protrusion 524 released from being caught, the first contact 57 and the second contact 58 become the first contact receiver 641 and the second contact. It is pulled out from the receiver 642. That is, the operator can complete the electrical connection work between the emergency power supply unit 5 and the control device 6 almost at the same time as the work of accommodating the emergency power supply unit 5 in the instrument main body 10. Further, the operator can complete the electrical disconnection operation between the emergency power supply unit 5 and the control device 6 almost at the same time as the removal operation of the emergency power supply unit 5 from the instrument main body 10.

As shown in FIG. 3, the cover 7 includes a first cover 71 and a second cover 72. The first cover 71 and the second cover 72 are connected so as to be arranged in the left-right direction by a long connecting body 73 formed in an L shape when viewed from the front-rear direction. The first cover 71, the second cover 72, and the connecting body 73 are preferably integrally formed of a nonflammable material such as metal. For example, the cover 7 is preferably made of aluminum die-cast. However, the cover 7 may be made of a nonflammable material other than metal, for example, ceramics. If the cover 7 is made of a nonflammable material, it is possible to prevent the cover 7 from burning due to a fire. Further, if the first cover 71 and the second cover 72 are integrally formed, the number of parts can be reduced and the assembly work can be simplified.

The first cover 71 is formed in a box shape with an open upper surface. The lower surface of the first cover 71 is formed in a curved shape that gently projects downward from both ends toward the center in the lateral direction (front-rear direction), similarly to the translucent cover 20 of the conventional lighting device 2 (FIG. 3 and FIG. 6). A recess 710 is formed on the lower surface of the first cover 71. The recess 710 is formed in an elliptical shape when viewed from below (see FIG. 4A). A hole 711 penetrates the center (bottom) of the recess 710. The hole 711 is formed in a shape (elliptical shape) through which the lens body 440 of the lens 44 can be inserted. The recess 710 is formed so that both ends in the major axis direction (left-right direction) protrude downward from both ends in the minor axis direction (front-rear direction) (see FIG. 4B).

The first cover 71 has four through holes (first through hole 712, second through hole 713, third through hole 714, fourth through hole 715) at the left end on the lower surface thereof (FIGS. 4A and 715). 6). The first through hole 712, the second through hole 713, the third through hole 714, and the fourth through hole 715 are arranged so as to be arranged in a row from the front to the rear.

The first cover 71 has two hooking portions 716 at the left end on the upper surface thereof (see FIG. 5A). The hook portion 716 is formed in an L shape when viewed from the front-rear direction (see FIG. 5B). Further, the hook portion 716 is configured to incline upward as it approaches its tip (left end) (see FIG. 5B).

As shown in FIG. 6, the second cover 72 has a flat portion 720, an arm portion 721, and a fixed portion 722. The flat portion 720 is formed in a substantially rectangular flat plate shape. The flat portion 720 is connected to the connecting body 73 at its left end. The arm portion 721 is formed in a substantially rectangular flat plate shape. The arm portion 721 is configured to rise upward from the front end at the right end of the flat portion 720. The fixing portion 722 is formed in a substantially rectangular flat plate shape. The fixing portion 722 is configured to project to the right from the upper end of the arm portion 721. Further, the fixing portion 722 has a circular screw insertion hole 723 in the right corner closer to the front thereof.

As shown in FIGS. 4A to 4C, the cover 7 covers a part (left end portion) of the emergency light source unit 4, the control device 6, and the emergency power supply unit 5 by the first cover 71, and the second cover 72. It is configured to cover the entire rest of the emergency power supply unit 5 from below. The lens body 440 of the emergency light source unit 4 is inserted into the hole 711 of the first cover 71 and exposed to the outside of the cover 7. The first operating member 6214 faces the first through hole 712 of the first cover 71 (see FIG. 4A). The first operating member 6214 is pushed by a jig inserted through the first through hole 712. The second operating member 6215 is inserted through the fourth through hole 715 of the first cover 71 (see FIG. 5B). The second operating member 6215 is pushed by, for example, a human finger. The second through hole 713 of the first cover 71 faces the light receiving element 614 of the control device 6 (see FIG. 4A). Further, the third through hole 714 of the first cover 71 faces the display element 613 of the control device 6 (see FIG. 4A). That is, the control signal transmitted from the remote controller reaches the light receiving element 614 through the second through hole 713. Further, the light (green light) emitted by the display element 613 is radiated to the outside of the cover 7 through the third through hole 714.

The cover 7 is fixed to the instrument main body 10 by a pair of hooking portions 716 of the first cover 71 and a fixing portion 722 of the second cover 72. The pair of hooking portions 716 are hooked on the projecting pieces 130 protruding to the right from the lower end of the second side plate 13 on the left side of the instrument body 10 (see FIG. 11). The fixing portion 722 is screwed to the top plate 11 of the instrument main body 10. The screw for screwing the fixing portion 722 is inserted into the screw insertion hole 723 of the fixing portion 722 and the screw insertion hole 801 provided in the main piece 80 of the holding tool 8, and then the top plate of the instrument main body 10. It is screwed into the female screw provided on No. 11 (see FIG. 11).

By the way, the nickel-metal hydride battery used in the storage battery 50 has a discharge characteristic that the battery capacity is the largest near room temperature and the battery capacity at high temperature decreases. If the discharge characteristics of the storage battery 50 are deteriorated, the illuminance of the emergency lighting of the emergency lighting device 3 may be lowered, or the duration of the emergency lighting may be shortened. Therefore, it is preferable that the emergency power supply unit 5 having the storage battery 50 is arranged as far as possible from the heat source (emergency light source unit 4).

Therefore, as shown in FIGS. 2A and 2B, the emergency power supply unit 5 is housed in the instrument main body 10 so as not to overlap with the emergency light source unit 4 when viewed from a predetermined direction (vertical direction). The predetermined direction is a direction orthogonal to the direction (left-right direction) in which the regular lighting device 2 and the emergency lighting device 3 are lined up, and the regular lighting device 2 and the emergency lighting device 3 project out of the appliance main body 10. The direction (up and down direction). Therefore, the emergency power supply unit 5 is arranged away from the emergency light source unit 4, which is a heat source, as compared with the conventional example described in Patent Document 1. As a result, the lighting fixture 1 can suppress the deterioration of the discharge characteristics of the emergency power supply unit 5 by reducing the influence of heat received by the emergency power supply unit 5 from the emergency light source unit 4.

Further, the nickel-metal hydride battery used in the storage battery 50 has a charging characteristic that the charging efficiency decreases as the temperature rises. If the charging efficiency of the storage battery 50 is lowered, the illuminance of the emergency lighting of the emergency lighting device 3 may be lowered, or the duration of the emergency lighting may be shortened. Therefore, it is preferable that the emergency power supply unit 5 having the storage battery 50 is arranged as far as possible from the heat source (normal lighting device 2). However, when the emergency power supply unit 5 is housed in one end of the fixture body 10 in the longitudinal direction and the emergency light source unit 4 is arranged between the emergency power supply unit 5 and the regular lighting device 2, the fixture body 10 is arranged in the longitudinal direction. The size of is large.

Therefore, the emergency lighting device 3 arranges the second cover 72 between the regular lighting device 2 and the emergency power supply unit 5 in the vertical direction. That is, the first bottom wall 530 of the case cover 53 of the emergency power supply unit 5 faces the upper surface of the left end of the regular lighting device 2 with the second cover 72 interposed therebetween (see FIG. 11). Therefore, since the emergency lighting device 3 blocks the heat generated by the regular lighting device 2 with the second cover 72, it is possible to prevent the temperature of the emergency power supply unit 5 from rising excessively due to the heat generated by the regular lighting device 2. can.

As described above, the lighting fixture 1 includes a regular lighting device 2 for performing regular lighting, an emergency lighting device 3 for performing emergency lighting, and a fixture main body 10 for accommodating the regular lighting device 2 and the emergency lighting device 3. ing. The emergency lighting device 3 charges the emergency light source unit 4, the emergency power supply unit 5 having at least one storage battery 50, and the emergency light source unit 4 with the electric power discharged from the storage battery 50 while charging the storage battery 50. It includes a control device 6 that lights up. The emergency lighting device 3 further includes a cover 7 having a hole 711 through which the light emitted from the emergency light source unit 4 passes and covering the emergency light source unit 4. The appliance main body 10 accommodates the emergency lighting device 3 side by side next to the regular lighting device 2. The emergency power supply unit 5 is housed in the instrument main body 10 so as not to overlap the emergency light source unit 4 when viewed from a predetermined direction. The predetermined direction is a direction orthogonal to the direction (horizontal direction) in which the regular lighting device 2 and the emergency lighting device 3 are lined up, and the direction in which the regular lighting device 2 and the emergency lighting device 3 project out of the fixture main body 10. (Up and down direction). The cover 7 includes a portion (second cover 72) arranged between the regular lighting device 2 and the emergency lighting device 3.

If the luminaire 1 is configured as described above, the heat generated by the luminaire 2 is blocked by a portion (second cover 72) arranged between the luminaire 2 and the emergency luminaire 3. While the emergency lighting device 3 is arranged near the regular lighting device 2, the temperature rise of the emergency power supply unit 5 due to the heat generated by the regular lighting device 2 can be suppressed. Moreover, since the emergency power supply unit 5 faces the normal lighting device 2 with the second cover 72 sandwiched in a predetermined direction (vertical direction), it is possible to suppress an increase in the size of the fixture body. As a result, the lighting fixture 1 can suppress the deterioration of the charging characteristics of the emergency power supply unit 5 while suppressing the increase in size of the fixture main body 10.

Further, in the luminaire 1, the second cover 72 is preferably formed integrally with the first cover 71.

If the luminaire 1 is configured as described above, the number of parts can be reduced and the assembly work can be simplified as compared with the case where the second cover 72 and the first cover 71 are configured separately. can.

Further, in the lighting fixture 1, the fixture body 10 is preferably formed in a long box shape. It is preferable that the regular lighting device 2 and the emergency lighting device 3 are housed in the fixture main body 10 so as to be arranged along the longitudinal direction of the fixture main body 10.

If the luminaire 1 is configured as described above, the luminaire body 10 is shorter than the case where the luminaire 2 and the emergency luminaire 3 are housed so as to be arranged along the lateral direction of the luminaire body 10. The width dimension in the hand direction can be reduced.

In the luminaire 1, the first cover 71 and the second cover 72 are preferably made of a nonflammable material such as metal.

If the luminaire 1 is configured as described above, it is possible to prevent the first cover 71 and the second cover 72 from burning due to a fire.

In the lighting fixture 1, the control device 6 is preferably housed in the fixture body 10 so as to overlap the emergency light source unit 4 when viewed from a predetermined direction (vertical direction).

If the luminaire 1 is configured as described above, the size of the emergency luminaire 3 in the left-right direction is smaller than that in the case where the control device 6 is housed in the luminaire body 10 side by side with the emergency light source unit 4 in the left-right direction. Can be achieved.

1 Lighting equipment 2 Regular lighting equipment 3 Emergency lighting equipment 4 Emergency light source unit 5 Emergency power supply unit 6 Control device 7 Cover 10 Equipment body 50 Storage battery 71 1st cover 72 2nd cover

Claims (4)

It is provided with a regular lighting device for performing regular lighting, an emergency lighting device for performing emergency lighting, and an instrument main body for accommodating the regular lighting device and the emergency lighting device.
The emergency lighting device controls an emergency light source unit, an emergency power supply unit having at least one storage battery, and a control that charges the storage battery and lights the emergency light source unit with the power discharged from the storage battery. It comprises an apparatus and a cover having a hole through which light emitted from the emergency light source unit passes and covering the emergency light source unit.
The appliance main body accommodates the emergency lighting device side by side next to the regular lighting device.
The emergency power supply unit is housed in the instrument body so as not to overlap the emergency light source unit when viewed from a predetermined direction.
The predetermined direction is a direction orthogonal to the direction in which the regular lighting device and the emergency lighting device are lined up, and is a direction in which the regular lighting device and the emergency lighting device project out of the main body of the appliance.
The cover is a lighting fixture including a portion arranged between the regular lighting device and the emergency lighting device. The instrument body is formed in the shape of a long box.
The lighting device according to claim 1, wherein the regular lighting device and the emergency lighting device are housed in the device main body so as to be arranged along the longitudinal direction of the device main body. The luminaire according to claim 1 or 2, wherein the cover is made of a nonflammable material such as metal. The lighting fixture according to any one of claims 1 to 3, wherein the control device is housed in the fixture main body so as to overlap the emergency light source unit when viewed from the predetermined direction.

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