JP7304990B2 - light source unit - Google Patents

Description

The present disclosure relates to light source units for lighting fixtures. In particular, the present invention relates to a light source unit for a lighting fixture that uses light emitting elements such as LEDs (light emitting diodes) as light sources.

An emergency lighting fixture having a structure in which an LED board and a power supply board are thermally coupled is known.

Patent Literature 1 discloses a structure in which a light source unit is attached to a lighting fixture with a frame mounting bracket attached to the light source unit.

JP 2016-162504 A

The frame mounting bracket of Patent Document 1 does not have a temporary holding function. For this reason, there is a risk that the worker's hand will slip and the frame will fall. A fall prevention string or wire is required to prevent falling. In addition, in the case of the frame attachment metal fitting of Patent Document 1, the length of the metal fitting is required in order to provide elasticity, and the place where the metal fitting is held is the back side of the instrument body, which makes it difficult to aim when attaching.
Also, no technology is disclosed for preventing the positional deviation of the lens in the optical axis direction.

An object of the present disclosure is to prevent displacement of the lens in the optical axis direction.

A lighting fixture according to the present disclosure has a light source arrangement surface provided on one side and a member arrangement surface provided on the back side of the light source arrangement surface, and penetrates from the light source arrangement surface to the light source arrangement surface. a holder having a holder opening formed thereon, a light source substrate provided on the side of the light source arrangement surface portion, a light source mounted on the light source substrate and arranged at a position where the holder opening is formed; an optical control member provided on the side of the member placement surface portion so as to cover the light source, wherein the holder has an inner surface formed along the outer peripheral shape of the optical control member on the member placement surface portion. and an elastic portion provided at a position inside the outer periphery of the optical control member in a state where the optical control member is attached to the member placement surface portion, wherein the The optical control member is held by the rib and the elastic portion in the optical axis direction of the light source.

According to the lighting fixture according to the present disclosure, the holder includes a rib having an L-shaped cross section, the inner surface of which is formed along the outer peripheral shape of the optical control member, and the optical control member is attached to the member placement surface. and an elastic portion provided at a position inside the outer periphery of the optical control member in the closed state. Also, the optical control member is held by the rib and the elastic portion in the optical axis direction of the light source. Therefore, according to the lighting fixture according to the present disclosure, it is possible to prevent the positional deviation of the optical control member in the optical axis direction.

BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view of the lighting fixture 1 which concerns on Embodiment 1, (a) is the perspective view seen from upper direction, (b) is the perspective view seen from the downward direction. FIG. 5 is a five-sided view of the lighting fixture 1 according to Embodiment 1; 1 is an exploded perspective view of lighting fixture 1 according to Embodiment 1. FIG. 2 is a perspective view of the main body 2 according to Embodiment 1. FIG. 5 is a five-sided view of the main body 2 according to Embodiment 1. FIG. 4A is a view showing the holding spring according to the first embodiment, FIG. 4A is a mounting state of the holding spring, FIG. 4B is a perspective view of the holding spring A, and FIG. 4C is a perspective view of the holding spring B. FIG. 3 is a perspective view of the power supply unit 4 according to Embodiment 1. FIG. 3 is a perspective view of the power supply unit 4 according to Embodiment 1. FIG. 6A and 6B are six views of the power supply unit 4 according to the first embodiment. FIG. 4A and 4B are views showing assembly of the power supply unit 4 according to the first embodiment; FIG. 4A and 4B are views showing assembly of the power supply unit 4 according to the first embodiment; FIG. 3 is a trihedral view of the power supply unit 4 according to the first embodiment; FIG. FIG. 2 is an end view of the AA cross section of the power supply unit 4 according to the first embodiment; 5 is a five-sided view of storage battery 11 according to Embodiment 1. FIG. 1 is a perspective view of a storage battery 11 according to Embodiment 1, and a schematic diagram showing an attachment structure between the storage battery 11 and a power supply unit 4. FIG. 4 is a table showing the relationship between the color and state of the monitor LED 42 and the state of the lighting fixture 1 according to Embodiment 1; 2 is a perspective view of the light source unit 50 according to Embodiment 1. FIG. FIG. 5 is a five-sided view of the light source unit 50 according to Embodiment 1; 4 is a diagram showing an example of a light source 5 according to Embodiment 1; FIG. 4A and 4B are diagrams showing another example of the light source 5 according to the first embodiment; FIG. 4A to 4E are diagrams showing variations (a) to (e) of the shape of the optical control member 6 according to the first embodiment; FIG. 4 is a perspective view of the holder 9 according to Embodiment 1. FIG. FIG. 23 is a five-sided view of the holder 9 shown in FIG. 22(a); FIG. 23 is a four-sided view of the holder 9 shown in FIG. 22(b); 4 is a perspective view showing rotation of the light source unit 50 according to Embodiment 1. FIG. 4 is a perspective view showing rotation of the light source unit 50 according to Embodiment 1. FIG. 4 is a side view showing rotation of the light source unit 50 according to Embodiment 1. FIG. 4 is a perspective view of the mounting bracket 13 according to the first embodiment; FIG. 6A and 6B are six views of the mounting bracket 13 according to the first embodiment. FIG. FIG. 2 is a perspective view of a SUB-ASSY 60 according to Embodiment 1; FIG. 2 is a perspective view of a SUB-ASSY 60 according to Embodiment 1; FIG. 5 is a five-sided view of the SUB-ASSY 60 according to Embodiment 1; 4 is an exploded perspective view of a light source unit 50a according to a modification of Embodiment 1. FIG. FIG. 2A is a side view showing the frame 14 according to Embodiment 1, in which (a) is a state in which the frame 14 is temporarily held, (b) is a state in which the light source unit 50a is rotated, and (c) is a state in which the storage battery 11 is removed. The figure which shows the state which closed. FIG. 4 is a diagram showing a mounting state of a holding spring Ba according to the first embodiment;

Embodiments of the present disclosure will be described below with reference to the drawings. In each figure, the same reference numerals are given to the same or corresponding parts. In the description of the embodiments, the description of the same or corresponding parts will be omitted or simplified as appropriate.
Also, in the following drawings, the size relationship of each component may differ from the actual size. In addition, in the description of the embodiments, when directions or positions such as up, down, left, right, front, back, front, and back are indicated, those notations are described as such for convenience of explanation. and does not limit the placement and orientation of any device, instrument, or component.

Embodiment 1.
*** Configuration description ***
FIG. 1 is a perspective view of a lighting fixture 1 according to the present embodiment, where (a) is a perspective view from above and (b) is a perspective view from below.
FIG. 2 is a five-sided view of the lighting fixture 1 according to this embodiment.
FIG. 3 is an exploded perspective view of the lighting fixture 1 according to this embodiment.
FIG. 4 is a perspective view of the main body 2 according to this embodiment.
FIG. 5 is a five-sided view of the main body 2 according to this embodiment.
6A and 6B are views showing the holding spring according to the present embodiment, in which FIG. 6A is an attached state of the holding spring, FIG. 6B is a perspective view of the holding spring A, and FIG. be.

The lighting fixture 1 according to the present embodiment is an embedded emergency lighting fixture that is embedded in a mounting hole formed in a mounting surface. A specific example of the mounting surface is a ceiling surface or a wall surface.
The luminaire 1 has a main body 2 , a mounting spring 3 , a light source unit 50 a and a frame 14 . FIG. 3 shows a light source unit 50a having a shape different from that of the light source unit 50, which will be described later. The only difference between the light source unit 50 and the light source unit 50a is the shape of the heat sink 7, and the other configurations are the same.
A terminal block 12 and a power supply section 4 are attached to the main body 2 . The terminal block 12 and the power supply section 4 are arranged inside the main body 2 using mounting brackets 13 . The storage battery 11 is attached to the power supply unit 4 .

<Body 2>
The main body 2 is attached to the mounting surface. The main body 2 has a cylindrical shape with a closed top surface and an open bottom surface. Around the opening 22 on the lower surface, there is provided a main body collar 21 formed toward the outside. The main body flange 21 is caught on the outer circumference of the mounting hole provided in the mounting surface. In this embodiment, the main body 2 is made of sheet metal. However, as long as it has the functions described in this embodiment, the method of forming the main body 2 may be a forming method such as aluminum die casting or drawing.

A mounting spring 3 and a holding spring A and a holding spring B for holding the frame 14 are attached to the main body 2 .
A planar portion 201 is formed on the side portion of the main body 2 . A spring mounting portion 31 for mounting the mounting spring 3 is formed on the planar portion 201 . The spring mounting portions 31 are provided on two flat portions 201 facing each other with respect to the center of the housing. That is, the spring mounting portions 31 are provided symmetrically with respect to the center of the housing of the main body 2 . The mounting spring 3 has a shape in which circular arcs are connected toward the outside of the main body 2 . When mounting the main body 2 on the mounting surface, the mounting spring 3 is elastically deformed in the direction toward the main body 2, and the main body 2 is inserted into the mounting hole together with the mounting spring 3. Thereafter, the main body 2 is fixed to the mounting surface by deforming the mounting spring 3 in the direction of returning to its original shape at the location where the main body flange 21 of the main body 2 abuts against the edge of the mounting hole.

A projecting portion 32 projecting inward of the main body 2 is formed in the vicinity of the spring mounting portion 31 on the planar portion 201 of the main body 2 . The projecting portions 32 are formed on both sides of each of the symmetrically provided spring mounting portions 31 . The protruding part 32 protrudes inside the main body 2 and is fitted with the holding springs A and B to attach the holding springs A and B. As shown in FIG. The projecting portion 32 is also called a frame mounting portion.

In this embodiment, the projecting portion 32 to which the holding spring A is attached is referred to as a projecting portion 32a, and the projecting portion 32 to which the retaining spring B is attached is referred to as a projecting portion 32b.
The projecting portions 32a are formed on both sides of the spring mounting portion 31 on the power supply portion 4 side of the symmetrically provided spring mounting portions 31 . The projecting portions 32b are formed on both sides of the spring mounting portion 31 on the side of the storage battery 11 among the spring mounting portions 31 provided symmetrically. The projecting portions 32 a and 32 b are arranged at positions that do not interfere with the spring mounting portion 31 . A retaining spring A that retains the frame 14 is attached to the projecting portion 32a. A holding spring B that holds the frame 14 is attached to the projecting portion 32b.

By forming the projecting portions 32a and 32b on the same plane portion 201 as the spring mounting portion 31 in this manner, the projecting portions 32a and 32b and the spring mounting portion 31 can be processed at the same time when the main body 2 is manufactured. becomes possible. Moreover, since the projecting portions 32a and 32b and the spring mounting portion 31 are formed on the same flat portion 201, only the portion of the flat portion 201 may interfere with other components. Therefore, the space inside the main body 2 can be used effectively.
An opening 23 corresponding to the terminal block 12 , mounting holes 24 and 25 for fixing the power supply section 4 and the mounting bracket 13 , and screw holes 26 are formed in the top surface of the main body 2 .

<Power supply unit 4>
FIG. 7 is a perspective view of the power supply unit 4 according to the present embodiment as seen from the case 15 side.
FIG. 8 is a perspective view of the power supply unit 4 according to the present embodiment as seen from the cover 16 side.
9A and 9B are six views of the power supply unit 4 according to this embodiment.
FIG. 10 is a diagram showing assembly of the case 15 and the circuit board 17 in the power supply unit 4 according to this embodiment.
FIG. 11 is a diagram showing assembly of the case 15, the circuit board 17, and the cover in the power supply unit 4 according to this embodiment.
FIG. 12 is a trihedral view of the power supply unit 4 according to this embodiment.
FIG. 13 is a cross-sectional view of the power supply section 4 taken along the line AA according to this embodiment.

The power supply unit 4 charges the storage battery 11 . The power supply section 4 includes a case 15 , a cover 16 and a circuit board 17 . The power supply section 4 is also called a power supply unit. The case 15 and the cover 16 are molded from plastic, and specifically, plastics such as PC, PC+ABS, PBT, and PP are used. The case 15 and cover 16 may be made of metal such as SGCC or aluminum provided that they are properly insulated. The circuit board 17 includes a charging circuit that charges the storage battery 11 when power is supplied from the commercial power supply, and a lighting circuit that lights the light source 5 with the power of the storage battery 11 when the commercial power supply fails. The circuit board 17 also includes an inspection circuit for determining whether or not the light source can be turned on by the storage battery 11 for a specified time, a switch 45 for starting the inspection operation, and a signal for executing the inspection operation by the remote controller. A receiver 41 is provided. The case 15 has guide portions 153 for placing the circuit board 17 on the case 15 .

FIG. 14 is a five-sided view of storage battery 11 according to the present embodiment.
FIG. 15 is a perspective view of storage battery 11 according to the present embodiment, and a schematic diagram showing a mounting structure between storage battery 11 and power supply unit 4 .
As shown in FIG. 8, the cover 16 has a connecting portion 167 to which the connector portion 111 of the storage battery 11 is connected. Moreover, the cover 16 has a guide portion 162 for attaching the storage battery 11 . The storage battery 11 has a storage battery side guide portion 112 corresponding to the guide portion 162, and is slid upward from the downward direction of the power source portion 4 (the downward direction in FIG. 15) to fit into the power source portion 4. . Since the fixing portion 113 of the storage battery 11 is fitted into the groove portion 163 of the cover 16 , downward movement is restricted, and the storage battery 11 is fixed to the power supply portion 4 . Moreover, it becomes possible to remove the fixing portion 113 from the power source portion 4 by deforming the fixing portion 113 in the direction opposite to the groove portion 163 (the P1 direction in FIG. 15).
That is, the power supply unit 4 charges and holds the storage battery 11 .
Further, as shown in FIG. 11, the cover 16 has an LED partition wall 164 for fixing the position of the circuit board 17 housed in the case 15 . The contact of the LED partition wall 164 with the circuit board 17 fixes the position of the circuit board 17 when the case 15 and the cover 16 are combined.

<<Push button 43>>
As shown in FIGS. 10 and 13 , a push button 43 is provided on the side surface of the case 15 at a location corresponding to the switch 45 mounted on the circuit board 17 .
The push button 43 is provided with a slit 44 on the side surface of the case 15 from the bottom side of the case 15 toward the opening side, and a protrusion corresponding to the switch mounted on the circuit board 17 is provided on the opening side of the case 15 . ing. Here, the push button 43 can press the switch 45 with a smaller force as the slit 44 is provided longer. Also, the push button 43 is deformed from the base of the slit 44 when the switch 45 is pressed, but the longer the slit 44 is provided, the smaller the stress generated at the base and the less the push button 43 is damaged. Therefore, in this embodiment, by providing the slit 44 from the bottom side of the case 15, it is possible to push the switch 45 with a small force while preventing damage. In addition, since the solder surface side of the circuit board 17 is arranged on the bottom side of the case 15 with respect to the case 15 , even when the slit 44 is provided long, it does not interfere with the parts of the circuit board 17 .
The push button 43 is provided with an appropriate clearance with respect to the circuit board 17, and a protrusion for pushing the switch 45 is provided with respect to the clearance. Therefore, the push button 43 can operate the switch 45 with a small force without interfering with parts other than the switch 45 . In addition, it is possible to make the push button 43 less likely to break. Further, by arranging the slits 44 perpendicularly to the component surface of the circuit board 17, it is possible to easily arrange a plurality of push buttons 43 even when a plurality of switches 45 are adjacent to each other.

<<LED 42 for monitor>>
A monitor LED 42 is mounted together with a switch 45 on the board end side of the circuit board 17 . The monitor LED 42 has a function of indicating the state of the lighting fixture 1, and three monitor LEDs 42 are provided in this embodiment. The monitor LEDs 42 are green, red, and orange, respectively.

FIG. 16 is a table showing the relationship between the color and state of the monitor LED 42 and the state of the lighting fixture 1 according to the present embodiment.
Here, the self-inspection refers to a function of checking whether or not the storage battery 11 is capable of lighting the light source 5 for a specified time by means of an inspection circuit of the power supply unit 4 . The specified time for which the light source 5 is lit by the storage battery 11 is 30 minutes or 60 minutes for the emergency lighting equipment. In order to carry out the self-inspection, it is necessary that the storage battery 11 is continuously charged for a specified period of time. The prescribed time is 48 hours for emergency lighting fixtures.
Further, in the present embodiment, there is a function of displaying whether self-inspection is possible or not when performing inspection by a remote controller. By performing a predetermined operation with the remote controller, the following displays can be displayed on the main unit.
・Blinking green LED + orange LED --- Indicates that self-inspection is possible.
・Blinking of orange LED + red LED・・・Indicates that self-inspection is not possible.
Note that the numbers and colors of the monitors and the display method described above are examples, and are not limited to the contents described. Moreover, one or more monitor LEDs may be mounted, and the number of monitor LEDs may be increased or decreased according to the function.

<<LED partition 164>>
The case 15 is provided with an opening in its side surface corresponding to the monitor LED 42 mounted on the circuit board 17 . On the other hand, the cover 16 is provided with an LED partition wall 164 between the monitor LEDs 42 mounted on the circuit board 17 . The LED partition wall 164 prevents the light of the monitor LED 42 from being mixed inside the power supply unit 4 and making it difficult to distinguish the color when the monitor LED 42 mounted on the circuit board 17 is turned on. Moreover, the LED partition 164 is arranged so as to contact the circuit board 17, and has a function of fixing the position of the circuit board 17 when the case 15 and the cover 16 are combined.

<Light source unit 50>
FIG. 17 is a perspective view of the light source unit 50 according to this embodiment.
FIG. 18 is a five-sided view of the light source unit 50 according to this embodiment.
Also, FIG. 33 is an exploded perspective view of a light source unit 50a according to a modification of the present embodiment. The only difference between the light source unit 50 according to the present embodiment and the light source unit 50a according to the modified example is the shape of the heat sink 7, and the other configurations are the same. Therefore, part of FIG. 33 may be referred to in order to describe the light source unit 50 according to the present embodiment.

As shown in FIGS. 17, 18 and 36, the light source unit 50 includes a light source 5, an optical control member 6, a radiator plate 7, a heat conductive sheet 8, and a holder 9. The light source unit 50 is attached so that the optical axis direction faces downward. That is, the direction of the optical axis is the same as the falling direction. As described above, this embodiment differs from FIG. 33 only in the shape of the heat sink. In this embodiment, as shown in FIG. 18, it has a flat plate shape without a recess. The light source 5 is in contact with the radiator plate 7 via the heat conductive sheet 8 . The holder 9 is fixed to the heat sink 7 with screws 911 while pressing the light source 5 against the heat sink 7 with the light source 5 in contact with the heat sink 7 via the heat conductive sheet 8 . The optical control member 6 controls the light from the light source 5 in a desired direction. The optical control member 6 is specifically a lens. The holder 9 is a lens holder that holds the light source 5 and the optical control member 6 . Moreover, the heat sink 7 is also called a heat sink.

<<Light Source 5>>
FIG. 19 is a diagram showing an example of the light source 5 according to this embodiment.
FIG. 20 is a diagram showing another example of the light source 5 according to this embodiment.
The light source 5 includes one or more LEDs 52 , a light source board 51 on which the LEDs 52 are mounted, and a connector 53 mounted on the light source board 51 . The light source 5 is lit by power supply from the power supply unit 4 . In an emergency, the light source 5 is lit by power supply from the power supply unit 4 using the storage battery 11 as a power source. The power source section 4 and the light source 5 are electrically connected by a harness 10 . The light source 5 is fixed to the heat radiating plate 7 by the holder 9 in a state in which the back surface of the LED mounting surface of the light source substrate 51 is in contact with the heat radiating plate 7 via the heat conductive sheet 8 . A COB (Chip On Board) type LED may be used as the light source 5 . In that case, instead of the light source board 51, a connecting member such as a socket for electrical connection with the power source section 4 is used.
The light source substrate 51 has an LED 52 as a light emitting element mounted on a mounting surface 511 . The LED 52 is a light-emitting element that emits light by power supplied from the power supply section 4 . Further, the light source substrate 51 is arranged so that the substrate back surface 512 , which is the back surface of the mounting surface 511 , faces the direction of the main body 2 . In other words, the light source substrate 51 is arranged such that the mounting surface 511 faces the direction opposite to the main body 2 .
That is, the light source substrate 51 is arranged so that the substrate rear surface 512 faces upward.

<<Optical control member 6>>
The optical control member 6 includes an optical portion 61 facing the light emitting element and a collar portion 62 formed around the optical portion 61 . The optical section 61 controls the light from the light source 5 in a desired direction. The collar portion 62 is provided around the optical portion 61 . The optical control member 6 is molded from a nonflammable material such as glass, or a transparent resin such as PMMA or PC. When the lighting fixture 1 is used as an emergency lighting fixture, the shell must be made of a flame-retardant material. Therefore, it is desirable that the optical control member 6 is made of glass. In emergency lighting equipment, when the optical control member 6 is made of transparent resin, it is necessary to arrange a noncombustible material such as a glass cover on the outside of the optical control member 6 .
FIG. 21 is a diagram showing variations in the shape of the optical control member 6 according to this embodiment.

<<heat sink 7>>
The radiator plate 7 radiates heat generated by the light source 5 . The heat sink 7 is in contact with the back surface 512 of the light source substrate 51 . The shape of the radiator plate 7 is appropriately changed according to the output of the light source 5 . It is desirable that the heat sink 7 be made of a metal having a high thermal conductivity, such as an aluminum alloy. Further, by thermally connecting the heat sink 7 to the main body 2 or the frame 14 to dissipate heat to other members, the size of the heat sink 7 itself can be reduced.
In this embodiment, the radiator plate 7 includes a heat receiving portion 71 that receives heat from the light source 5 and a heat radiating portion 72 that radiates heat.

<<Thermal conductive sheet 8>>
The thermal conductive sheet 8 is made of a silicon-based material or an acrylic material. The thermally conductive sheet 8 is used to conduct heat generated by the light source 5 to the radiator plate 7 . When the light source 5 and the heat sink 7 are made of a metal such as an aluminum alloy, if the metals are brought into direct contact with each other and thermally connected, a contact thermal resistance occurs at the contact surface. By sandwiching the heat conductive sheet 8 between the light source 5 and the heat sink 7, the contact heat resistance at the contact surface can be lowered. Insulation between the light source substrate 51 and the radiator plate 7 can be ensured by providing the heat conductive sheet 8 with insulating properties.

<<Holder 9>>
22A and 22B are perspective views of the holder 9 according to the present embodiment. FIG. 22A shows the holder 9 in which the hinge portion 902 is a separate part, and FIG. 22B shows the hinge portion 902. 9 is a diagram showing the holder 9 with the 902 open. FIG.
FIG. 23 is a five-sided view of the holder 9 of FIG. 22(a).
FIG. 24 is a four-sided view of the holder 9 having the hinge portion 902 and the hinge portion 902 being opened.
The holder 9 having the hinge portion 902 as a separate component has the same function as the holder 9 having the hinge portion 902 by attaching a separate component corresponding to the hinge portion 902 .
The holder 9 is attached to the heat sink 7 with the back surface 512 of the light source board 51 pressed against the heat sink 7 . As shown in FIG. 17, the holder 9 holds the light source substrate 51 and the optical control member 6 with the optical axes of the light source substrate 51 and the optical control member 6 aligned.

The holder 9 is formed with a holder opening 99 for exposing the light emitting element. The holder 9 holds the optical control member 6 covering the light emitting element exposed from the holder opening 99 .
As shown in (a) of FIG. 24 , the side of the holder 9 on which the light source substrate 51 is arranged is defined as a light source arrangement surface portion 910 . Further, as shown in FIG. 24(b), in the holder 9, the back surface of the light source placement surface portion 910 and the side on which the optical control member 6 is placed is referred to as a member placement surface portion 920. As shown in FIG. The holder 9 has projections 904 in contact with the inner surface of the frame 14 on the periphery of the member placement surface portion 920 .
Further, the holder 9 includes a pair of arm portions 91c and a shaft portion 91a formed inwardly from the ends of the respective arm portions of the pair of arm portions 91c. Further, a base portion 91b is provided at the base of the shaft portion 91a. The shaft base portion 91b is a base formed at the base of the shaft portion 91a and reinforces the shaft portion 91a. The shaft portion 91a is formed with a taper 911a from the base toward the insertion direction. Further, a positioning portion 97 protruding from the light source arrangement surface portion 910 is provided. As shown in FIG. 18 , in the light source unit 50 , the positioning portion 97 protrudes from the radiator plate 7 .

The structure of the holder 9 will be explained in detail.
The holder 9 has a function of holding the light source 5 , the optical control member 6 , the heat conductive sheet 8 and the heat sink 7 . A harness 10 connecting the light source 5 and the power supply unit 4 is fixed to harness holding portions 981 , 982 , and 983 of the holder 9 . The holder 9 is molded from a synthetic resin such as PC, PC+ABS, or PP. The holder 9 is attached to the elongated hole 166 of the cover 16 of the power supply unit 4 while holding the light source 5 , the optical control member 6 , the heat conductive sheet 8 and the heat sink 7 . The harness 10 is connected to the circuit board 17 with the holder 9 attached to the power source section 4 .

The holder 9 has a shaft portion 91 a , an axle base portion 91 b , mounting claws 92 , a substrate positioning portion 93 , a substrate pressing portion 94 , harness holding portions 981 , 982 , 983 , an L-shaped rib 901 and a hinge portion 902 .
The shaft portion 91 a is attached to the bearing portion 155 of the power supply portion 4 . The shaft portion 91 a has a taper 911 a formed in the insertion direction from the root, and has a shape that facilitates insertion into the bearing portion 155 .
The mounting claws 92 are inserted into the square holes 73 of the heat sink 7 . The radiator plate 7 is attached to the holder 9 by inserting the attachment claws 92 into the square holes 73 . A substrate positioning portion 93 , a substrate pressing portion 94 , and harness holding portions 981 , 982 , and 983 are provided on the light source placement surface portion 910 of the holder 9 . The harness 10 is held and positioned by the harness holding portions 981, 982, and 983. As shown in FIG.

The holder 9 has a plurality of L-shaped ribs 901 each having an L-shaped cross section on the member placement surface portion 920 . The inner surface of each L-shaped rib 901 of the plurality of L-shaped ribs conforms to the outer peripheral shape of the optical control member 6 . Further, holes corresponding to the positions where the respective L-shaped ribs 901 are arranged are formed in the base surfaces of the respective L-shaped ribs 901 of the plurality of L-shaped ribs.
As shown in FIGS. 17, 18 and 22(b), the optical control member 6 is held by the holder 9 by sliding in a direction intersecting the optical axis direction of the light emitting element. Specifically, the optical control member 6 is held by the holder 9 by sliding in a direction substantially orthogonal to the optical axis direction of the light emitting element. The optical control member 6 is held by the holder 9 in a state in which the collar portion 62 is fitted into the plurality of L-shaped ribs 901 by sliding in the P2 direction that intersects the optical axis direction.

The holder 9 has a recess 903 in which a region surrounded by a plurality of L-shaped ribs 901 is recessed. The optical control member 6 is held by the holder 9 while being positioned in the concave portion 903 by sliding in the direction P2 intersecting the optical axis direction.
Further, the holder 9 has a convex portion 905 on the path along which the optical control member 6 slides. The optical control member 6 slides over the convex portion 905 . The optical control member 6 is held by the holder 9 while being stopped by the convex portion 905 .
Further, the holder 9 has a hinge portion 902 on the member placement surface portion 920 . The hinge portion 902 fixes the optical control member 6 by being bent in the radial direction of the optical control member 6 while the holder 9 holds the optical control member.
Further, as shown in FIG. 24, the holder 9 has an elastic portion 930 near the edge of the recess 903 . The elastic portion 930 has a protrusion 931 formed on the side where the optical control member 6 is arranged. The optical control member 6 is pressed by the elastic portion 930 and the optical control member 6 is pressed against the L-shaped rib 901 by the projection 931 coming into contact with the optical control member 6 . As a result, the thickness of the optical control member 6 can be absorbed, and the displacement of the optical control member 6 in the optical axis direction can be suppressed.

As described above, the optical control member 6 is slid in the P2 direction, and the collar portion 62 is inserted into the L-shaped rib 901 . The L-shaped rib 901 presses the collar portion 62 to regulate the vertical direction of the optical control member 6 . Also, the concave portion 903 and the convex portion 905 prevent the inserted optical control member 6 from coming off.

<<Regarding assembly of the light source unit 50>>
Since the light source 5, the holder 9, the heat sink 7, the heat conductive sheet 8, and the optical control member 6 can be unitized as the light source unit 50, it is possible to separate the assembly work of the fixture and perform it as a pre-work. Width spreads.

Assembly of the light source unit 50 composed of the light source 5, the holder 9, the heat sink 7, the heat conductive sheet 8, and the optical control member 6 will be described.
(1) First, the light source 5 with one end of the harness 10 inserted is arranged in the holder 9 . At this time, the position of the light source 5 is determined by aligning the substrate positioning portion 93 and the curved portion of the light source substrate 51 .
(2) After placing the light source 5 , the harness 10 is pushed into the harness holding portion 981 . Thereby, the harness 10 is fixed and stress is prevented from being applied to the connector 53 of the light source 5 . After that, the harness 10 is hooked on the harness holding portion 982 and passed through the harness holding portion 983 . As a result, it is possible to prevent the harness 10 from being pinched when the heat sink 7 is attached, and to prevent the covering of the harness 10 from being damaged by the edge of the heat sink 7 .
(3) After that, the thermal conductive sheet 8 is put on the back surface 512 of the light source board 51 , and the mounting claws 92 of the holder 9 are inserted into the rectangular holes 73 of the heat sink 7 . As a result, the radiator plate 7 and the heat conductive sheet 8 can be temporarily fixed to the holder 9 . Temporary fixing prevents the light source 5 from coming off and improves workability.
(4) Next, the optical control member 6 is attached to the member placement surface portion 920 of the holder 9 . The optical control member 6 is fitted into the L-shaped rib 901 by sliding it in the horizontal direction (direction P2 in FIG. 22(b)). At that time, the recess 903 and the projection 905 provided on the holder 9 prevent the holder 9 from being unexpectedly removed. By mounting the optical control member 6 by sliding it in the horizontal direction (direction P2), the L-shaped rib 901 bears its own weight in the vertical direction when the device is mounted. Therefore, unless the L-shaped rib 901 is damaged, the optical control member 6 will not come off the holder 9 and fall.
(5) After attaching the optical control member 6 , the position of the optical control member 6 is fixed by bending the hinge portion 902 so that the optical control member 6 cannot be slid and the optical control member 6 does not come off from the holder 9 . As shown in FIGS. 22(b) and 24(b), the hinge portion 902 has a resin hinge structure integrated with the holder 9, thereby reducing the number of parts and making it possible to reduce the cost. Note that the hinge portion 902 may be a separate member.
(6) Finally, two screws 911 are used to fix the light source unit 50 to the radiator plate 7 from the holder 9 side, thereby completing the assembly of the light source unit 50 . By fixing with the screw 911, the substrate pressing portion 94 of the holder 9 presses the light source substrate 51 against the thermally conductive sheet 8 and the heat sink 7, thereby efficiently dissipating heat.

As shown in FIGS. 19, 20 and 21, when there are multiple types of light sources 5 and multiple types of optical control members 6, multiple types of light source units 50 are completed by combining the light sources 5 and optical control members 6. FIG. In addition, even when there are a plurality of types of power supply units 4, by using the same structure, there is an effect of improving the assembly efficiency of the worker.

<<Regarding Rotation of Light Source Unit 50>>
FIG. 25 is a diagram showing rotation of the light source unit 50 according to the present embodiment, and is a perspective view showing a state in which the light source unit 50 is opened.
FIG. 26 is a diagram showing rotation of the light source unit 50 according to the present embodiment, and is a perspective view showing a state in which the light source unit 50 is opened.
FIG. 27 is a diagram showing rotation of the light source unit 50 according to the present embodiment, and is a side view showing a state in which the light source unit 50 is opened.
When the holder 9 is attached to the power supply unit 4, the holder 9 can rotate around the shaft portion 91a of the holder 9. As shown in FIG. It is desirable that the harness 10 be held or fixed in the vicinity of the shaft portion 91a of the holder 9 in order to prevent tension from being applied to the harness 10 when the holder 9 rotates. Therefore, the holder 9 has a harness holding portion 983 formed on the arm portion 91c near the shaft portion 91a.
The light source unit 50 rotates in direction P3, the positioning portion 97 of the holder 9 is inserted into the long hole 166 of the cover 16 of the power supply section 4, and the light source unit 50 is closed. When the light source unit 50 is closed in this manner, the light source unit 50 is held in a horizontal direction substantially parallel to the mounting surface such as the ceiling surface. In this state, the holder 9 and the radiator plate 7 are provided with holes or slits at positions corresponding to the signal receivers 41 so that the signal receivers 41 of the power source 4 can be visually recognized from the outer shell of the lighting fixture 1 . is provided. When attaching or replacing the storage battery 11, the storage battery 11 can be attached or detached by rotating the light source unit 50 in a direction perpendicular to the ceiling surface. As the holder 9 is movable in this manner, the inside of the main body 2 can be effectively used regardless of the shape of the component mounted on the holder 9 .

<Mounting bracket 13>
FIG. 28 is a perspective view of the mounting bracket 13 according to this embodiment.
29A and 29B are six views of the mounting bracket 13 according to the present embodiment.
The mounting bracket 13 has a function of fixing the power supply section 4 and the terminal block 12 . The mounting bracket 13 is provided with unit mounting holes 131 and 132 for mounting the power supply section 4 . The mounting claw portion 152 of the power supply section 4 is fitted into the unit mounting hole 131 . Also, the mounting claw portion 161 of the power supply section 4 is fitted into the unit mounting hole 132 . As a result, the power supply unit 4 is fixed to the mounting bracket 13 . Also, the terminal block 12 is fixed to the terminal block mounting portion 133 of the mounting bracket 13 with screws. The hooking portion 135 of the mounting bracket 13 is hooked to the mounting hole 25 (see FIG. 3) of the top plate of the main body 2 . Moreover, the mounting bracket 13 is attached to the main body 2 by fixing the screw holes 26 of the top plate of the main body 2 and the screw mounting portions 134 with screws.

<SUB-ASSY60>
FIG. 30 is a perspective view of the SUB-ASSY 60 according to this embodiment.
FIG. 31 is a perspective view of the SUB-ASSY 60 according to this embodiment.
FIG. 32 is a five-sided view of the SUB-ASSY 60 according to this embodiment.
The SUB-ASSY 60 includes the power supply section 4 and the terminal block 12 attached to the mounting bracket 13 and the light source unit 50 attached to the power supply section 4 . By attaching the light source unit 50 to the power supply unit 4 and fixing the power supply unit 4 and the terminal block 12 to the mounting bracket 13, the parts to be incorporated in the main body 2 are integrally formed. This integrally formed state is referred to as SUB-ASSY60. The SUB-ASSY 60 is provided with a hook portion 151 , a screw mounting portion 134 and a hook portion 135 for fixing the SUB-ASSY 60 to the main body 2 . The hook portion 151 is provided on the case 15 of the power supply portion 4 . The screw mounting portion 134 and the hook portion 135 are provided on the mounting bracket 13 .

<Frame 14>
34A and 34B are side views showing the frame 14 according to the present embodiment, in which (a) is a state in which the frame 14 is temporarily held, (b) is a state in which the light source unit 50a is rotated, and (c) is a storage battery. 11 is a diagram showing a state in which 11 has been removed; FIG.
As shown in FIGS. 3 and 34, the frame 14 is attached to the main body 2 so as to block the opening 22 of the main body 2. As shown in FIG. The frame 14 covers the mounting surface 511 side of the light source substrate 51 in the main body 2 . That is, the frame 14 covers the lower surface side of the light source unit 50a. The frame 14 is provided with a frame opening 143 corresponding to the optical control member 6 at the center. The frame opening 143 exposes the optical control member 6 of the light source unit 50a.
Further, the frame 14 is provided with holes corresponding to the push button 43, the monitor LED 42, and the signal receiver 41, respectively.

As shown in FIGS. 6 and 34, the frame 14 is attached with a retaining spring A and a retaining spring B for attachment to the main body 2 .
Holding springs A and B are attached to the frame 14 and to the main body 2 to hold the frame 14 to the main body 2 .

The base A1 of the holding spring A is attached to the frame 14 with the tip A2 of the holding spring A inclined toward the center 411 of the frame 14 .
As shown in FIG. 6(a), the rear surface of the frame is provided with a guide portion 412 for guiding the root portion A1 of the holding spring A and an insertion portion 413 for inserting the root portion A1. The base portion A1 of the holding spring A cannot be inserted into the guide portion 412 and the insertion portion 413 unless the tip portion A2 of the holding spring A is tilted toward the center 411 of the frame 14 . This is because the guide portion 412 is open only at the center 411 side, and the base portion A1 is inserted into the guide portion 412 unless the tip A2 of the holding spring A is tilted toward the center 411 of the frame 14. This is because it has a structure that cannot Therefore, the base portion A1 of the holding spring A cannot be removed from the guide portion 412 and the insertion portion 413 unless the tip portion A2 of the holding spring A is tilted toward the center 411 of the frame 14 .

As shown in FIGS. 2 and 3 or 34, the holding spring A exerts a force in a direction different from the direction in which the tip A2 is tilted toward the center 411 of the frame 14 when attached to the main body 2. It is That is, even if both the holding springs A and B are attached to the main body 2 as shown in FIGS. 2 and 3, or if the holding spring A is attached to the main body 2 and only the holding spring B is attached as shown in FIG. Even if it is detached from the main body 2, the tip A2 is not tilted toward the center 411 of the frame 14. - 特許庁

The holding spring A has a horizontal portion A3 that hooks onto the projecting portion 32a of the main body 2 and temporarily holds the frame 14 . When the holding spring A is attached to the main body 2, the tip A2 penetrates the projecting portion 32a, and the horizontal portion A3 is hooked on the upper edge of the projecting portion 32a. As a result, the holding spring A is completely fitted to the main body 2 . Therefore, the holding spring A does not come off from the main body 2 and the frame 14 and can temporarily hold the frame 14 . Also, as described above, the frame 14 does not tilt to an angle at which the retaining spring A is disengaged from the frame 14 . Therefore, the frame 14 can be reliably temporarily held without the holding spring A coming off from the frame 14 .

The holding spring B has an inclined portion B2 that engages with the protruding portion 32b, and has a concave tip portion B3. Further, the tip B4 of the concave portion of the concave shape is located at the same position as the inclined portion B2 or closer to the frame 14 than the inclined portion B2.
As shown in FIG. 6A, a spring fixing portion 414 for fixing the base portion B1 of the holding spring B is provided on the rear surface of the frame 14. As shown in FIG. A root portion B1 of the holding spring B is hook-shaped, and the hook-shaped portion of the root portion B1 is inserted into the spring fixing portion 414 and fixed to the back surface of the frame .
The holding spring B has a concave tip like an M shape. This makes it possible to increase the distance even with a low-height spring, making it easier for the spring to bend. Further, by suppressing the spring height of the holding spring B, as shown in FIG. Easier to aim and easier to install.

In the lighting fixture 1 of this embodiment, the holding spring B and the holding spring A are attached to the frame 14 . The height of the holding spring B is lower than the height of the holding spring A.
Both the holding spring A and the holding spring B are attached to the rear surface of the frame 14 using elasticity. When attached to the main body 2, force is applied in the direction opposite to the direction of detachment from the frame 14, so that the holding springs A and B do not come off from the frame 14 when attached to and detached from the main body 2.例文帳に追加
As described above, the holding springs A and B are attached to the projecting portions 32 a and 32 b of the main body 2 and attached to the frame 14 , so that the frame 14 is held by the main body 2 . The holding spring A has a structure that can temporarily hold the frame 14 on the main body 2 , and the holding spring B has a structure that allows the frame 14 to be easily attached to the main body 2 . As for the holding spring A, the protruding portion 32a is located on the side of the frame 14, so that it is easy to target the protruding portion 32a when installing, and the easiness of installation is improved.

<Regarding vertical movement of the light source unit 50>
As shown in FIGS. 30 to 32, the light source unit 50 is vertically movable while being fixed to the power supply unit 4 so that the back surface of the substrate faces upward. That is, the light source unit 50 is vertically movable while attached to the power supply section 4 so that the light source faces downward. Being movable in the vertical direction means that the light source unit 50 is loose in the vertical direction in the states shown in FIGS. 30 to 32 . The up-down direction is also referred to as the falling direction or the vertical direction.

As shown in FIG. 9, the case 15 of the power supply unit 4 has a pair of bearings 155 to which the pair of shafts 91a of the holder 9 are attached. As shown in FIGS. 12 and 18, the shaft portion 91a is pushed into the bearing portion 155 in the P5 direction. At this time, the shaft portion 91a is pushed into the bearing portion 155 while the taper 911a (FIG. 18) of the shaft portion 91a and the inclined portion 155a of the bearing portion 155 are in contact with each other. Thus, the shaft portion 91a is formed with the taper 911a, and the bearing portion 155 is formed with the inclined portion 155a.

The positioning part 97 fixes the light source unit 50 to the power supply part 4 so that the back surface of the substrate faces upward, that is, the light source faces downward while the shaft part 91 a is attached to the bearing part 155 . As shown in FIG. 18 , the positioning portion 97 protrudes from the heat sink 7 . In addition, as shown in FIG. 12, the power source section 4 is formed with an elongated hole 166 into which the positioning portion 97 is inserted.
As shown in FIG. 23, the positioning portion 97 is formed with a large width stopping portion 97a at the end. In addition, the positioning portion 97 is formed with a slit for cutting the stopper portion 97a. The positioning portion 97 is inserted into the elongated hole 166 while narrowing the slit, and when the stopper portion 97a passes through the elongated hole 166, the slit returns to its original position, preventing the stopper portion 97a from coming out of the elongated hole. The positioning portion 97 has a clearance of L1 from its base to the stopping portion 97a. Therefore, the positioning portion 97 can move vertically while being inserted into the elongated hole 166 . That is, the positioning portion 97 is loose in the vertical direction when inserted into the elongated hole 166 .

The enlarged view of FIG. 12 is a schematic diagram showing the shaft portion 91a and the shaft base portion 91b of the bearing portion 155 when the light source unit 50 is stopped by the power supply portion 4 so that the light source faces downward. As shown in the enlarged view of FIG. 12, when the light source unit 50 is stopped by the power supply unit 4 so that the light source faces downward, the shaft base portion 91b has a flat upper portion 911b. formed. Since there is a clearance L2 between the upper end portion of the bearing portion 155 and the planar portion 911b, the light source unit 50 is stopped by the power supply portion 4 so that the light source faces downward. It is possible to move vertically in this state. That is, the shaft portion 91a and the shaft base portion 91b rattle in the vertical direction when the light source unit 50 is stopped by the power supply portion 4 so that the light source faces downward.

As described above, in the light source unit 50, in the state shown in FIGS. 30 to 32, the shaft portion 91a, the shaft base portion 91b, and the positioning portion 97 attached to the power supply portion 4 are movable in the vertical direction, that is, in the falling direction. It is possible. 30 to 32, the light source unit 50 is movable in the vertical direction, that is, there is rattling in the vertical direction.

As shown in FIG. 32, a projection 904 is formed on the member placement surface portion 920 of the holder 9 . Four protrusions 904 are formed on the peripheral edge of the member placement surface 920 of the holder 9 .
By vertically moving the light source unit 50, the light source unit 50 is regulated horizontally with respect to the frame 14, and a desired light distribution can be obtained with high accuracy. Further, in order to allow the light source unit 50 to move vertically, the cross-sectional shape of the shaft base portion 91b of the holder 9 is not circular but substantially semicircular as shown in the enlarged view of FIG.

In a model in which the output of the light source 5 is small, the radiator plate 7 may not come into contact with the frame 14 as in this embodiment. Such models are desired to be as small as possible without contacting the frame 14 . Even when the radiator plate 7 does not contact the frame 14 , the protrusion 904 of the holder 9 contacts the frame 14 , thereby functioning to restrict the light source unit 50 in the horizontal direction with respect to the frame 14 .

<Storage battery 11>
As shown in FIGS. 14 and 15, the storage battery 11 has a substantially rectangular parallelepiped shape, and is fixed by being fitted to the power supply unit 4. As shown in FIG. The storage battery 11 has a connector portion 111 protruding from a surface that contacts the power supply portion 4 , and is electrically connected by being connected to a connection portion 167 provided on the cover 16 of the power supply portion 4 . A cylindrical storage battery cell 115 is accommodated in a substantially rectangular parallelepiped case 114 . The number of storage battery cells 115 housed in the case 114 can be changed according to the light output required for the lighting fixture 1, and one type of case 114 can correspond to various output modes of the lighting fixture 1. It becomes possible.
Further, the storage battery 11 is formed with a connector portion 111 so that the surface opposite to the surface having the connector portion 111 is brought into contact with the power source portion 4 and can be housed inside the main body 2 . This eliminates the need to arrange and pack the storage battery 11 separately outside the main body 2 by making it possible to store the storage battery 11 inside the main body 2 without making an electrical connection when the lighting fixture 1 is packed during transportation. , there is an effect of miniaturizing the packing form of the lighting fixture 1 .

<How to fix the SUB-ASSY60 to the main body 2>
Next, a method for fixing the SUB-ASSY 60 to the main body 2 will be explained. As shown in FIGS. 5 and 6, the main body 2 is provided with mounting holes 24 and screw holes 26 . First, the holder 9 attached to the power supply section 4 of the SUB-ASSY 60 is set at a position parallel to the storage battery mounting surface of the power supply section 4 . Next, the hook portion 151 of the power supply portion 4 of the SUB-ASSY 60 is inserted into the insertion portion 241 of the mounting hole 24 of the main body 2, and the SUB-ASSY 60 is slid toward the fixing portion 242 of the mounting hole 24. When the SUB-ASSY 60 is slid, the positions of the screw mounting portions 134 are aligned with the screw holes 26 of the main body 2 and the mounting bracket 13, so the screws are used to fix the SUB-ASSY 60 in that state.

As described above, in this embodiment, lighting fixture 1 includes main body 2 , terminal block 12 , power supply section 4 , mounting bracket 13 , and frame 14 . The main body 2 is cylindrical with an opening 22 at one end. The terminal block 12 is used for electrical connection with an external power supply. The external power supply is a commercial power supply in this embodiment. The power supply unit 4 corresponds to a lighting unit. The power supply unit 4 is electrically connected to the terminal block 12 by an electric wire (not shown). The terminal block 12 and the power supply section 4 are attached to the mounting bracket 13 . The mounting bracket 13 is fixed to the main body 2 together with the terminal block 12 and the power supply section 4 . Specifically, the mounting bracket 13 is housed in the main body 2 while being fixed to the end of the main body 2 opposite to the end where the opening 22 is provided, together with the terminal block 12 and the power supply section 4 . The frame 14 is attached to the end of the main body 2 where the opening 22 is provided, and closes the opening 22 of the main body 2 .

The lighting fixture 1 further includes a light source unit 50 . The light source unit 50 is attached to the power supply section 4 and is powered by the power supply section 4 to be lit. Therefore, the mounting bracket 13 is fixed to the main body 2 together with the terminal block 12 , the power supply section 4 and the light source unit 50 .

The lighting fixture 1 further includes a storage battery 11 . The storage battery 11 is attached to the power supply unit 4 , arranged on the side opposite to the terminal block 12 with respect to the terminal block mounting portion 133 of the mounting bracket 13 , and charged by the power supply unit 4 . Therefore, the mounting bracket 13 is fixed to the main body 2 together with the terminal block 12 , the power supply section 4 and the storage battery 11 .

The mounting bracket 13 has a terminal block mounting portion 133 and an upright portion 136 . The terminal block mounting portion 133 has a flat plate shape. The terminal block 12 is attached to the terminal block attachment portion 133 . The rising portion 136 is formed in a flat plate shape so as to rise from the edge of the terminal block mounting portion 133 . The power supply unit 4 is attached to the upright portion 136 from the opposite side to the terminal block attachment portion 133 . As a structure for attaching the power supply unit 4 to the standing portion 136 of the mounting bracket 13, any structure can be used. A structure in which the mounting claw portion 161 of the power supply portion 4 is fitted is adopted. The number of mounting claws 161 may be any number, but two in this embodiment. Therefore, two unit mounting holes 132 are formed in the standing portion 136 .

The mounting bracket 13 further has a flat plate portion 137 . The flat plate portion 137 extends in a direction away from the terminal block mounting portion 133 from the edge of the standing portion 136 opposite to the edge connected to the terminal block mounting portion 133 . The power supply section 4 has a hook section 151 . The hook portion 151 passes through a hole 137 a formed in the flat plate portion 137 of the mounting bracket 13 and is hooked to the mounting hole 24 formed in the main body 2 . The number of hooks 151 may be any number, but two in this embodiment. Therefore, two holes 137a are formed in the flat plate portion 137, and two mounting holes 24 are formed in the main body 2 as well.

The mounting bracket 13 further has a hook portion 135 . The hook portion 135 protrudes from the flat plate portion 137 and is hooked to the mounting hole 25 formed in the main body 2 . The number of hooks 135 may be any number, but it is one in this embodiment. Therefore, one mounting hole 25 is formed in the main body 2 .

The mounting bracket 13 further has a hanging portion 138 . The drooping portion 138 extends in a flat plate shape from the edge of the flat plate portion 137 opposite to the edge connected to the standing portion 136 in a direction toward the terminal block mounting portion 133 . In this embodiment, the power supply unit 4 is fixed to the mounting bracket 13 by being sandwiched between the upright portion 136 and the hanging portion 138 of the mounting bracket 13 . That is, the power supply unit 4 is attached to both the upright portion 136 and the drooping portion 138 of the mounting bracket 13 . As a structure for attaching the power source section 4 to the hanging portion 138 of the mounting bracket 13 , any structure can be used. A structure in which the mounting claw portion 152 of the power supply portion 4 is fitted is adopted. The number of mounting claws 152 may be any number, but two in this embodiment. Therefore, two unit mounting holes 131 are formed in the drooping portion 138 .

The mounting bracket 13 further has a connecting portion 139 . The connecting portion 139 is formed by rising from an edge of the terminal block mounting portion 133 different from the edge connected to the standing portion 136 and then bending. The connecting portion 139 is connected to the main body 2 . As a structure for connecting the connecting portion 139 to the main body 2, any structure can be used, but in the present embodiment, a structure for screwing the connecting portion 139 to the main body 2 is adopted. Specifically, a structure is adopted in which the screw mounting portion 134 formed in the connecting portion 139 and the screw hole 26 in the top plate of the main body 2 are fixed with screws. The number of connecting portions 139 may be any number, but two in this embodiment. Therefore, two screw holes 26 are formed in the body 2 .

In this embodiment, the terminal block 12 and the power supply unit 4 are attached to the mounting bracket 13 , and the mounting bracket 13 is fixed to the main body 2 together with the terminal block 12 and the power supply unit 4 . Therefore, the terminal block 12, the power supply unit 4, and the mounting bracket 13 can be incorporated into the lighting fixture 1 as a single structural component SUB-ASSY 60 that can be commonly applied to fixtures of different types or different diameters.

Moreover, as described above, in the present embodiment, the lighting fixture 1 includes the storage battery 11 , the power supply unit 4 , and the main body 2 . A flat first plane portion 116 and a charging connector portion 111 are provided on one surface of the storage battery 11 . A flat second plane portion 117 is provided on a surface of the storage battery 11 oriented in a different direction from the surface on which the first plane portion 116 is provided. The power supply unit 4 corresponds to a lighting unit. A flat third plane portion 46 and a connection portion 167 for supplying power to the storage battery 11 are provided on one surface of the power supply portion 4 . The storage battery 11 is attached to the power supply unit 4 with the first plane portion 116 of the storage battery 11 facing the third plane portion 46 and the connector portion 111 of the storage battery 11 electrically connected to the connection portion 167 . In the main body 2, the storage battery is mounted in both the connected state S1 in which the storage battery 11 is attached to the power supply unit 4 and the non-connected state S2 in which the second flat surface portion 117 of the storage battery 11 faces the third flat surface portion 46 of the power supply unit 4. 11 and the power supply unit 4 can be accommodated. It is desirable that the second flat portion 117 of the storage battery 11 abut against the third flat portion 46 of the power supply section 4 in the disconnected state S2.

The lighting fixture 1 further includes a light source unit 50 and a frame 14 . The main body 2 has a cylindrical shape with an opening 22 provided at one end for inserting and removing the storage battery 11 . The light source unit 50 is attached to the power supply section 4 and housed in the main body 2 together with the power supply section 4 . The light source unit 50 is positioned between the storage battery 11 and the power supply section 4 and the opening 22 of the main body 2 in the connection state S1 and the state in which the storage battery 11 and the power supply section 4 are housed in the main body 2 . Powered by and lights up. In this embodiment, the light source unit 50 is attached to the power supply unit 4 by being connected to the power supply unit 4 by a hinge mechanism so as to be openable and closable. Let The frame 14 is detachably attached to the end of the main body 2 where the opening 22 is provided. The light source unit 50 emits light to the outside of the main body 2 through a frame opening 143 formed in the frame 14 .

Although the storage battery 11 may have any shape, it has a substantially rectangular parallelepiped shape in this embodiment. The surface of storage battery 11 on which second flat portion 117 is provided is the surface opposite to the surface on which first flat portion 116 of storage battery 11 is provided. That is, when the surface of storage battery 11 on which first flat portion 116 is provided is the front surface of storage battery 11 , the surface on which second flat portion 117 of storage battery 11 is provided corresponds to the rear surface of storage battery 11 .

The connector portion 111 of the storage battery 11 has a convex portion 111 a that protrudes from the first plane portion 116 and a connector 111 b that extends parallel to the first plane portion 116 from the convex portion 111 a. The connection portion 167 of the power source portion 4 has a recess 167a recessed from the third plane portion 46 and a connector 167b extending parallel to the third plane portion 46 within the recess 167a. In the connected state S1, one of the connector 111b of the connector portion 111 of the storage battery 11 and the connector 167b of the connection portion 167 of the power supply portion 4 is inserted into the other. In this embodiment, the connector 111b of the connector portion 111 of the storage battery 11 is inserted into the connector 167b of the connection portion 167 of the power supply portion 4 .

A fixed portion 113 having a spring property and having a protrusion 118 formed thereon is provided on the surface of the storage battery 11 on which the first flat portion 116 is provided. A groove portion 163 recessed from the third flat portion 46 is provided on the surface of the power supply portion 4 on which the third flat portion 46 is provided. In the connected state S<b>1 , the protrusion 118 of the fixing portion 113 of the storage battery 11 is fitted into the groove portion 163 of the power supply portion 4 .

The fixing portion 113 of the storage battery 11 includes an upright portion 113a that protrudes from the first flat portion 116, extends from the upright portion 113a parallel to the first flat portion 116, and is elastically deformed in a direction approaching the first flat portion 116. and a longitudinal plate 113b. The projection 118 of the fixing portion 113 of the storage battery 11 is formed on the surface of the plate 113 b of the fixing portion 113 opposite to the surface facing the first flat portion 116 . In the connected state S<b>1 , the projection 118 is kept fitted in the groove 163 of the power source section 4 by the elastic force of the plate 113 b of the fixing section 113 . In the present embodiment, at this time, the surface of plate 113b of fixing portion 113 is in contact with third flat portion 46 of power supply portion 4 .

A longitudinal storage battery side guide portion 112 is provided on the surface of the storage battery 11 on which the first flat portion 116 is provided. A longitudinal guide portion 162 is provided slidably with respect to the storage battery side guide portion 112 of the storage battery 11 on the surface of the power supply portion 4 on which the third plane portion 46 is provided.

In the connected state S1 and in a state where the storage battery 11 and the power supply unit 4 are housed in the main body 2 , the longitudinal directions of the storage battery side guide portion 112 of the storage battery 11 and the guide portion 162 of the power supply unit 4 are aligned with the axis of the main body 2 . parallel to the direction. According to the present embodiment, the direction in which the storage battery 11 is put in and taken out is the same as the sliding direction between the storage battery side guide portion 112 of the storage battery 11 and the guide portion 162 of the power supply portion 4, so that the storage battery 11 can be easily attached and detached. .

In the connected state S<b>1 and in a state where the storage battery 11 and the power supply unit 4 are accommodated in the main body 2 , one of the connector portion 111 of the storage battery 11 and the connection portion 167 of the power supply unit 4 extends along the axial direction of the main body 2 . inserted into the other. In this embodiment, the connector portion 111 of the storage battery 11 is inserted into the connection portion 167 of the power supply portion 4 . According to the present embodiment, the direction in which the storage battery 11 is taken in and out is the same as the insertion/extraction direction of the connector portion 111 of the storage battery 11 with respect to the connection portion 167 of the power supply portion 4, so the storage battery 11 can be easily attached and detached.

In the present embodiment, since the storage battery 11 and the power supply unit 4 can be stored in the main body 2 in a state in which they are not electrically connected, the storage battery 11 can be separately removed from the main body 2 when the lighting fixture 1 is packed for transportation. It is no longer necessary to arrange and pack, and the size of the packing can be reduced, and the labor and cost of packing can be reduced.

***Other Configurations***
<Modification 1>
A holding spring Ba, which is a modification of the holding spring B, will be described with reference to FIG. FIG. 35 is a diagram showing a mounting state of the holding spring Ba according to this embodiment.
A holding spring Ba having a shape shown in FIG. 35 may be attached to the frame 14 .
The frame 14 has a spring fixing portion 414 for attaching the holding spring Ba. The spring fixing portion 414 has a hole portion 414a into which the end portion B3a of the holding spring Ba is inserted.

The holding spring Ba has an end portion B3a that is inserted into the hole portion 414a of the frame 14 . The holding spring Ba is attached to the frame 14 by inserting the end portion B3a into the hole portion 414a.
The attachment of the holding spring Ba to the spring fixing portion 414 is the same as the attachment of the holding spring B to the spring fixing portion 414 described above, but will be described in more detail here.
In FIG. 35, the end portion B3a of the holding spring Ba is a portion of the base portion B1a, which is a hook-shaped portion, and penetrates the hole portion 414a of the spring fixing portion 414. As shown in FIG. In FIG. 35, L1 is the length of the hole 414a and L2 is the length of the end B3a. L1 and L2 preferably have a relationship of L2>L1. That is, it is preferable that the length of the end portion B3a is longer than the length of the hole portion 414a. Such a length relationship makes it difficult for the holding spring Ba to come off from the spring fixing portion 414 .

The holding spring Ba has an inclined portion B2a that engages with the projecting portion 32b of the main body 2 . The holding spring Ba has a convex tip, and has inclined portions B2a on both sides of the tip that engage with the projecting portion 32b. Since the holding spring Ba has a convex shape with the inclined portion B2a, the manufacturing cost can be kept low. In addition, it becomes easier to aim at the projecting portion 32b when attaching, and the ease of attachment is improved.

<Modification 2>
Although two different holding springs A and B, Ba are used in this embodiment, one or three or more may be used. In addition, when a plurality of them are used, they do not need to have different shapes, and may have the same shape depending on the required functions. Any two holding springs out of the holding spring A and the holding springs B and Ba may be combined and attached to the frame. That is, any two of the holding springs A and the holding springs B and Ba may be combined and attached to the frame.

<Modification 3>
Moreover, in the present embodiment, the height of the holding spring A is higher than the height of the holding springs B and Ba. However, the height of the holding spring A and the height of the holding springs B and Ba may be substantially the same, or the height of the holding spring A may be lower than the height of the holding springs B and Ba. Moreover, the height of the holding springs B and Ba is preferably about half the height of the holding spring A.

<Modification 4>
It should be noted that the first embodiment may be implemented by combining a plurality of portions. Alternatively, one portion of this embodiment may be implemented. In addition, this embodiment may be implemented as a whole or partially in any combination.

***Description of the effects of the present embodiment***
In the lighting fixture according to this embodiment, the base of the holding spring A is attached to the frame with the tip of the holding spring A tilted toward the center of the frame. When the holding spring A is attached to the main body, a force is applied in a direction different from the direction in which the tip is tilted toward the center of the frame. Therefore, according to the lighting fixture according to the present embodiment, it is possible to have a structure in which the frame is less likely to fall when the holding spring A is attached to the main body.

In the lighting fixture according to this embodiment, the holding spring A has a horizontal portion that temporarily holds the hook frame on the projecting portion. Therefore, according to the lighting fixture according to the present embodiment, the holding spring A can reliably hold the frame temporarily.

In the lighting fixture according to the present embodiment, the holding spring B has an inclined portion that engages with the projecting portion and has a concave tip. Located closer to the frame than the slope. Therefore, according to the lighting fixture according to the present embodiment, the holding spring B can be configured to be easily attached to the main body.

The above-described embodiments are essentially preferable examples, and are not intended to limit the scope of the present disclosure, the scope of application of the present disclosure, and the range of applications of the present disclosure. Various modifications can be made to the above-described embodiments as required.

Reference Signs List 1 lighting fixture 2 main body 21 main body flange 22 opening 23 opening 24 mounting hole 241 insertion section 242 fixing section 25 mounting hole 26 screw hole 31 spring mounting section 32, 32a, 32b projection Part 3 Mounting Spring 4 Power Supply Part 41 Signal Receiving Part 42 Monitor LED 43 Push Button 44 Slit 45 Switch 46 Third Plane Part 11 Storage Battery 111 Connector Part 112 Storage Battery Side Guide Part 113 fixing part 114 case 115 storage battery cell 111a convex part 111b connector 113a standing part 113b plate 116 first plane part 117 second plane part 118 projection 12 terminal block 13 mounting bracket 131, 132 unit mounting hole, 133 terminal block mounting portion, 134 screw mounting portion, 135 hook portion, 136 rising portion, 137 flat plate portion, 137a hole, 138 drooping portion, 139 connecting portion, 14 frame, 143 frame opening, 15 case, 151 hook portion 152, 161 mounting claw portion 153 guide portion 155 bearing portion 155a inclined portion 16 cover 162 guide portion 163 groove portion 164 LED partition wall 166 long hole 167 connection portion 167a recessed portion 167b connector, 17 circuit board, 60 SUB-ASSY, 201 plane part, 5 light source, 50, 50a light source unit, 51 light source board, 511 mounting surface, 512 substrate back surface, 52 LED, 53 connector, 6 optical control member, 61 optical part, 62 Collar Part 7 Radiator Plate 71 Heat Receiving Part 72 Heat Radiator Part 73 Square Hole 8 Heat Conductive Sheet 9 Holder 91a Shaft Part 911a Taper 91b Axle Part 911b Planar Part 91c Arm Part 92 Mounting Claw 93 Substrate positioning portion 94 Substrate pressing portion 97 Positioning portion 97a Stopping portion 99 Holder opening 901 L-shaped rib 902 Hinge portion 903 Concave portion 904 Projection 905 Convex portion 910 Light source arrangement surface portion 920 member placement surface portion, 930 elastic portion, 931 protrusion, 911 screw, 981, 982, 983 harness holding portion, 10 harness, 411 center, 412 guide portion, 413 insertion portion, 414 spring fixing portion, 414a hole, A, B, Ba holding spring, A1, B1, B1a base portion, A2, B3 tip portion, B2, B2a inclined portion, A3 horizontal portion, B4 tip, B3a end portion.

Claims (4)

A light source arrangement surface portion provided on one side and a member arrangement surface portion provided on the back side of the light source arrangement surface portion, and a holder opening is formed so as to penetrate from the light source arrangement surface portion to the member arrangement surface portion. and
a light source substrate provided on the side of the light source arrangement surface;
a light source mounted on the light source substrate and arranged at a position where the holder opening is formed;
an optical control member provided on the member placement surface side and provided to cover the light source;
The holder includes a rib having an L-shaped cross section and an inner surface formed along the outer peripheral shape of the optical control member, and the optical control member is attached to the member placement surface. an elastic portion provided in a circular shape at a position inside the outer periphery of the optical control member at approximately equal intervals ;
The optical control member is a light source unit held by the rib and the elastic portion in the optical axis direction of the light source. The elastic portion is
2. The light source unit according to claim 1, wherein three circular members are provided at positions inside the outer periphery of the optical control member at approximately equal intervals. 3. The light source unit according to claim 1, wherein the elastic portion has a projection contacting the optical control member. The optical control member has a flange on its outer circumference,
The light source unit according to any one of claims 1 to 3, wherein the flange portion is pressed against the rib by an elastic force of the elastic portion.

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