JP3249969B2 - lighting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting device of a hanging type in which a lighting device main body is hung by a power cord.

[0002]

2. Description of the Related Art Conventionally, for example, a lighting fixture 1 shown in FIG. 4 has been known. The lighting fixture 1 includes a disc-shaped fixture main body 2 having an open lower surface, and an electronic lighting circuit board 4 in which an insulating plate 3 and electronic components are disposed inside the fixture main body 2.
Is stored. Also, on the lower side of this instrument body 2,
A switch 7 provided with a baby bulb socket 6 is attached via a switch support 5. Further, a lamp holder 8 and a lamp socket (not shown) are attached to the lower side of the appliance body 2, and an annular fluorescent lamp L is mounted on the lamp holder 8 and the lamp socket. Further, a reflector 9 is attached to the lower side of the appliance main body 2 via a lamp holder 8 so as to cover the lower surface of the appliance main body 2. The mounted baby bulb 10 and the operation piece 7a of the switch 7 are configured to protrude.

On the other hand, a cord cover 14 having an open lower surface is attached to the upper surface, that is, the rear surface of the instrument body 2. In the center of the cord cover 14, there is a power supply hole.
14a is formed, and in this power supply hole 14a,
A cylindrical cord adjuster 15 is mounted. Then, the power cord W suspended from the ceiling surface is
The instrument body 2 is suspended and supported at a predetermined height by inserting the cord 14a and holding it at an appropriate position with the cord adjuster 15 to fix it. When the length of the power cord W is adjusted in this manner, the extra power cord W is stored inside the cord adjuster 15.

[0004] A power cord W introduced into the appliance main body 2 from above is bypassed to the circuit board 4 and connected to a connector receiver 4 a provided on the lower surface of the circuit board 4.

[0005]

However, in the above-described conventional configuration, a separate cord cover is provided on the upper surface of the instrument body 2.
Since the mounting of the lighting device 1 is increased, the height of the lighting device 1 is increased, the size of the packaging box for storing the lighting device 1 is increased, and the transportation cost is increased. In the above-described conventional configuration, the power cord W is connected to the circuit board 4.
And is connected to the lower surface of the circuit board 4, so that the assembling work is complicated, it is difficult to improve the assembling efficiency, and the power cord W becomes longer, and the manufacturing cost increases. I have.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a lighting apparatus that can adjust the length of a power cord, can reduce a height dimension, and can reduce a transportation cost. And

[0007]

According to a first aspect of the present invention, there is provided a lighting device, comprising: a lighting device main body having an insertion portion through which a power cord is inserted;
A board attachment body attached to the inside of the instrument body, a circuit board attached to the board attachment body, a fixture for fixing the power cord to the instrument body, and the instrument body and the board attachment body. a code storage portion is formed for accommodating the power cord while, co provided on the substrate mounting member
And a wall surrounding the card storage unit .

[0008] In this configuration, the power cord is stored in the cord storage portion provided between the instrument main body and the board attachment body mounted inside the instrument main body, so that a separate cord cover is not required. As a result, the number of parts is reduced and the height of the lighting fixture is reduced. Furthermore, this
In the configuration, the power cord is guided by the wall,
The cord is smoothly stored in the cord storage section.

Further, the equipment main body, facing the cord storage unit, by integrally forming the recessed portion towards the outside,
A large space for the cord storage section is secured, the storage amount of the power cord is increased, and the adjustment range of the height position of the lighting fixture is increased.

Further, the power supply cord is guided by the cord presser by providing a stopper mounting portion provided on the instrument body and a cord presser mounted on the stopper mounter, and the power cord is stored in the cord housing. It is stored smoothly in the part.

Further, the substrate mounting body by Rukoto provided claws for locking the power cord, by engaging the engaging pawl of the power cord if necessary, the power cord is guided, the power supply The cord is smoothly stored in the cord storage section.

[0012] Lighting device according to claim 2, wherein, in claim 1, wherein <br/> luminaire, and connectors provided on the power cord, electrically connected to the lighting device provided on the circuit board, substrate The connector includes a connector insertion portion provided on the mounting body and through which the connector is inserted, and a connector holding portion provided on the board mounting body for engaging and holding the connector.

In this configuration, the power supply cord is shorter and the wiring work is performed from one side of the lighting fixture as compared with a configuration in which the power supply cord is connected to the lighting device of the circuit board bypassing the board mounting body. Therefore, the work efficiency of assembling the lighting fixture is improved.

[0014] Lighting device according to claim 3, wherein, in claim 1, wherein <br/> luminaire, and a connector to be electrically connected to the lighting device provided on the circuit board provided in the power cord,
The connector includes a connector insertion portion provided on the board mounting body and through which the connector is inserted, and a connector holding portion provided on the circuit board for engaging and holding the connector.

[0015] In this configuration, the power supply cord is shorter and wiring work is performed from one side of the lighting fixture as compared with a configuration in which the power supply cord is connected to the lighting device of the circuit board bypassing the board mounting body. Therefore, the work efficiency of assembling the lighting fixture is improved.

[0016]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a lighting device according to an embodiment of the present invention.

1 and 2, reference numeral 21 denotes a lighting fixture. The lighting fixture 21 is suspended from a ceiling (not shown) using a power cord W, and is a disc-shaped fixture having an open lower surface. As a chassis 22.
In the center of the upper surface (back surface) of the chassis 22,
A concave portion 23 protruding upward is integrally formed, and a circular insertion portion 24 through which the power cord W is inserted is formed at the center of the concave portion 23. Further, a cord adjuster 26 as a fixing tool is fitted to the insertion portion 24. The cord adjuster 26 has a substantially cylindrical shape, and in a state of being moved upward, that is, in a state where the load of the lighting fixture 21 is applied to the power cord W, sandwiches the power cord W, and the chassis 22 and the power cord W Are fixed, and the power cord W is released to be movable with respect to the chassis 22 while being moved downward.

A stopper mounting portion 28 having a through hole is integrally formed on the upper surface of the chassis 22.
A plurality of through holes 29 are formed. Further, on the side surface of the chassis 22, a plurality of heat radiating holes 30 are provided at predetermined intervals over the entire circumference.
Are formed, and a plurality of reflector mounting holes 33 are formed in the flange portion 32 protruding from the lower end of the chassis 22 to the outer peripheral side.

The power cord W has an inner wire W1 having a pair of core wires, and an outer skin W2 covering the inner wire W1 except for the vicinity of the tip, and a connector at the tip of the inner wire W1. C is integrally attached. As shown in FIG. 3, the connector C has a substantially rectangular parallelepiped shape, and has a pair of connection holes (not shown) formed at its distal end, and a locking projection C1 having a triangular cross section on both sides. Are formed.

Further, as shown in FIG. 1, the power cord W is provided with a cord stopper S as a cord presser at a part of the outer cover W2. The cord stopper S has a plate shape folded in a substantially U-shape, and a through hole and a screw hole communicating with each other are formed at the distal end. Therefore, a screw 34 is inserted into the through hole of the stopper mounting portion 28 of the chassis 22 from above, and the screw 34 is inserted into the through hole of the code stopper S, screwed into the screw hole, and tightened.
The power cord W is fixed at a predetermined position on the lower surface of the chassis 22.

In FIG. 1 to FIG. 3, reference numeral 36 denotes a board mounting body. The board mounting body 36 is integrally formed of, for example, a synthetic resin having an insulating property, and has a flat octagonal plate-like mounting shape. It has a body body 37. And this mounting body
At the center of the upper surface of the 37, a substantially cylindrical, that is, a substantially C-shaped, flat wall portion 42 provided with a notch portion 41 is integrally formed so as to protrude upward and is located outside the notch portion 41. Thus, a pair of locking claws 44 are integrally provided to project upward.
Further, on the outside of the wall portion 42, a locking boss 45 having a locking portion at the tip and a mounting boss 46 having a screw hole at the tip are protrudingly provided. Engages the chassis 22,
By fixing the mounting boss 46 to the chassis 22 with the screws 47, the board mounting body 36 is fixed to the lower surface in a state of being housed inside the chassis 22.

With the board mount 36 attached to the chassis 22 in this manner, a cord storage section 48 surrounded by a wall 42 is provided between the board mount 36 and the chassis 22.
Is formed, and an extra power cord W when the length of the power cord W is adjusted is accommodated in the cord storage portion 48.

Further, inside the wall portion 42 of the mounting body 37, a connector insertion portion 50 and a pair of mounting through holes 51 are formed. As shown in FIG. 3, the connector insertion portion 50 has a substantially rectangular shape into which the connector C can be inserted, and a rectangular cylindrical shape as a connector holding portion is provided below the connector insertion portion 50. Resiliently deformable locking piece
52 is formed, and the locking piece 52 is provided with a locking projection of the connector C.
A pair of locking receiving portions 53 with which C1 is engaged are formed.

As shown in FIGS. 1 and 2, a pair of board mounting claws 55 are formed downward from the four edges of the mounting body 37, respectively. From the lower surface, a cylindrical boss 56 having a shorter length than the board mounting claw 55 is provided so as to communicate with each mounting through hole 51. Further, heat dissipation holes 57 are formed at predetermined intervals in the vicinity of the three edges of the attachment body 37,
On the other side, a switch radiator port 58 having an opening larger than the other radiator ports 57 is formed.

Reference numeral 61 denotes a circuit board (PC board) on which electronic components such as a switch 62 are mounted.
A circuit for electronic lighting of the fluorescent lamp L is configured. The switch 62 has a power cord W
A connector connection portion 64 having a pair of power supply connection pins to which the connector C is electrically connected is provided.
A drawstring 65 is provided vertically, and a baby bulb socket 68 for mounting a baby bulb 66, which is an incandescent bulb, is provided.

On the other hand, the circuit board 61 is in the form of a plate having a substantially octagonal shape in plan view.
Board holding claws 55 of the
It is positioned and held in contact with 56. Further, in this state, the mounting screws 71 inserted from above into the mounting through holes 51 of the board mounting body 36, through the through holes 72 formed in the circuit board 61,
It is screwed into a screw hole 73 provided on the upper surface of the switch 62 and is firmly fixed. Further, the circuit board 61 is provided with a connector through hole 75 facing the connector connection portion 64 of the switch 62, and the connector C inserted from above into the connector insertion portion 50 of the board attachment body 36 is provided with the connector C of the switch 62. Connector connection part 64
Is to be connected to. In addition, this circuit board
The switch 61 has a plurality of switch radiators 77 at predetermined intervals adjacent to the switch 62 and communicating with the switch radiator 58 of the board mounting body 36.

A lamp socket 83 is electrically connected to the circuit board 61 via a plurality of lead wires 81. The lamp socket 83 has a socket portion 84 connected to the two annular fluorescent lamps L, and has a pair of screw holes 85 formed on the upper surface thereof.
A screw 86 inserted from above into a predetermined through hole 29 is screwed into these screw holes 85 and fixed to the lower surface of the chassis 22.

A reflecting plate 88 has a bowl shape for covering the lower side of the chassis 22, and a reflecting surface is formed on the lower surface. At the center of the reflector 88, there is formed a reflector recessed portion 89 which is recessed in a columnar shape toward the upper side. A switch fitting hole 91 is formed in the reflector recessed portion 89 at the center thereof, through which the drawstring 65 of the switch 62 is inserted. The switch fitting hole 91 is surrounded by a plurality of heat radiating holes. The mouth 92 is formed substantially radially, and a plurality of cover mounting grooves 93 having a substantially arc shape are formed concentrically. In addition, a baby light bulb is
A circular bulb through hole 94 into which the 66 is inserted is formed.

A flange 96 having substantially the same shape as the flange 32 of the chassis 22 is formed at the upper edge of the reflector 88. The flange 96 has a reflector mounting hole 33 formed in the chassis 22. The mounting holes 97 are formed on three sides corresponding to.
Further, a notch 98 for a lamp socket is formed in the reflection plate 88 from the flange 96 to the side so as to fit into the lamp socket 83.

The reflection plate 88 is attached to the mounting holes 97
Is fixed to the lower surface of the chassis 22 by, for example, screwing a mounting screw inserted into the reflection plate mounting hole 33 of the chassis 22. A lamp holder 101 is fixedly fastened to each of the mounting screws for fixing the reflecting plate 88. Each of the lamp holders 101 is made of an elastically deformable leaf spring material or the like, and has a pair of lamp holding portions 102 each of which elastically holds the fluorescent lamp L.

The lower side of the concave portion 89 of the reflecting plate 88 of the reflecting plate 88 is covered with a bowl-shaped reflecting plate cover 104 having translucency. In the cover 104 for the reflection plate, radiating holes 105 are formed at predetermined intervals along the vicinity of the upper end, and mounting claws 106 are projected from three sides of the upper end. The reflector plate 88 cover mounting groove
It is engaged with 93 and is detachably attached to the reflection plate 88. Further, a through-hole (not shown) through which the drawstring 65 is inserted is formed in the reflector cover 104.

When assembling the luminaire 21, first, the insertion portion 24 of the chassis 22 and the cord adjuster 26
Is temporarily fixed inside the chassis 22 by the code stopper S. Next, the circuit board 61 is attached to the board attachment body 36, and the connector C of the power cord W is
The circuit board 61 is connected via the connector insertion portion 50 of the board mount 36.
To the connector connection part 64 of the switch 62 of FIG. continue,
The board mount 36 is fixed to the chassis 22, and these board mounts are fixed.
The power cord W in the chassis 22 is accommodated in a cord accommodating portion 48 formed between the chassis 36 and the chassis 22. Further, the lamp socket 83 is fixed to the chassis 22, and subsequently, the reflector 88 is fixed to the chassis 22 together with the lamp holder 101. Then, by attaching the reflector cover 104 to the reflector 88, the assembly of the lighting fixture 21 is completed.

Then, in this state, the cord adjuster 26 is loosened, the power cord W is put in and out of the chassis 22, the length is adjusted appropriately, and the hanging position of the lighting fixture 21 is adjusted appropriately. At this time, the surplus power cord W is stored in the cord storage section 48 in the chassis 22.

As described above, according to the present embodiment, the power cord W can be stored in the cord storage portion 48 provided between the chassis 22 and the board mounting member 36 mounted inside the chassis 22. The need for a separate cord cover is eliminated, the number of parts can be reduced, manufacturing costs can be reduced, and the height of the lighting fixture 21 can be reduced.
Can be reduced in thickness to reduce transportation costs, packaging costs, storage costs, and the like.

Further, since the recessed portion 23 facing upward and facing the cord storage portion 48 is formed integrally with the chassis 22, a large space for the cord storage portion 48 is ensured, and the same as when the cord cover is provided. By increasing the storage amount of the power cord W, the adjustment range of the height position of the lighting fixture 21 can be increased.

Further, the power cord W is guided by a cord stopper S attached to a stopper attaching portion 28 of the chassis 22, and a wall portion 42 surrounding the cord accommodating portion 48 is provided on the board attaching member 36. Therefore, the power cord W is guided to prevent the power cord W from being pinched between the chassis 22 and the board mounting member 36 or to prevent the power cord W from becoming entangled when the lighting fixture 21 is assembled. Code W
Can be smoothly stored in the code storage section 48.

The board mounting body 36 has a locking claw 44 projecting from the outside of the wall 42 and a notch 41 provided in the wall 42 so as to face the locking claw 44. Therefore, the power cord W
In consideration of the length of the power cord W, if necessary, the power cord W in the chassis 22 is locked through the notch portion 41 to the locking claw 44 and folded back, so that the power cord W is guided and stored in a state of being folded in an orderly manner can do. Therefore, when the lighting apparatus 21 is assembled, the power cord W can be prevented from being pinched or entangled, and the storage for the length adjustment of the power cord W and the drawer can be smoothly performed.

Further, a connector C provided on the power cord W
By being inserted from above into the connector insertion portion 50 provided in the board mounting body 36, the connector insertion hole 75 formed in the circuit board 61 is inserted and electrically connected to the connector connection portion 64 of the switch 62. And the connector C is a
The engaging piece 52 is engaged with the engaging piece 52 and the engaging projection C1 is engaged with the engaging receiving part 53, and is mechanically engaged and held by the elasticity of the engaging piece 52. Therefore, the power cord W is connected to the board mounting body 36 and the circuit board 61.
As compared with a configuration in which the power supply cord W is connected to the switch 62 mounted on the lower surface of the circuit board 61, the power cord W can be shortened, the manufacturing cost can be reduced, and wiring can be performed only from above the lighting fixture 21. Therefore, the work efficiency of assembling the lighting fixture 21 can be improved. Further, for example, a tool is inserted between the connector C and the locking piece 52 so that the locking projection C1
By releasing the lock receiving portion 53 from the lock receiving portion 53 to release the engagement, it can be easily removed. In addition, since the locking piece 52 is provided on the board mounting body 36, the connector C can be firmly engaged and held.

In the above-described embodiment, the locking projection C1 protrudes from the connector C, and the locking receiving portion 53 is formed by cutting out the locking piece 52 of the board mounting body 36. A locking projection may be provided to project from the piece 52, and a locking receiving portion may be formed in the connector C so as to be engaged with each other.

The locking piece as the connector holding part is
It can also be provided on the circuit board 61 or the switch 62 attached to the circuit board 61. In addition, even with such a configuration, the power cord W can be shortened, the manufacturing cost can be reduced, and wiring can be performed only from above the lighting fixture 21, thereby improving the work efficiency of assembling the lighting fixture 21. can do. Further, by providing the locking piece on the circuit board 61 or the switch 62, the connector C can be easily and accurately aligned with the switch 62 constituting the lighting device.

[0041]

According to the lighting apparatus of the first aspect, the power cord is stored in the cord storage section provided between the main body of the lighting apparatus and the board mounting body mounted inside the main body of the lighting apparatus. The need for a body cord cover is eliminated, the number of parts can be reduced, and the height of the lighting fixture can be reduced.
The transportation cost can be reduced. In addition, this configuration
In the above, the wall portion surrounding the cord storage portion was provided on the substrate mounting body.
The power cord is guided by the wall,
Between the power supply cord and the
Power cord in the cord compartment without
I can pay.

[0042] According to the lighting device according to claim 2 wherein, claim
In addition to the effects described in 1, the connector provided on the power cord
The power cord is electrically connected to the lighting device provided on the circuit board through the connector insertion portion provided on the board mounting body, and is engaged with and held by the connector holding section provided on the board mounting body. Compared with a configuration in which the lighting device is bypassed and connected to the lighting device on the circuit board, the power cord can be shortened and the wiring work can be performed from one side of the lighting device, so that the work efficiency of assembling the lighting device can be improved.
Further, by providing the connector holding portion on the board mounting body, the connector can be held firmly.

[0043] According to the lighting device according to claim 3, wherein, claim
In addition to the effects described in 1, the connector provided on the power cord
By electrically connecting to the lighting device provided on the circuit board through the connector insertion portion provided on the board mounting body and engaging and holding the connector holding section provided on the circuit board, the power cord can be bypassed around the board mounting body. As compared with a configuration in which the lighting device is connected to the lighting device of the circuit board, the power cord can be shortened and the wiring work can be performed from one side of the lighting device, so that the work efficiency of assembling the lighting device can be improved.
In addition, by providing the connector holding portion in the lighting device,
The connector can be easily and accurately aligned with the lighting device.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an embodiment of a lighting fixture of the present invention.

FIG. 2 is a cross-sectional view of the lighting device.

FIG. 3 is a perspective view of the lighting fixture in a partially disassembled state.

FIG. 4 is a sectional view of a conventional lighting fixture.

[Explanation of symbols]

21 luminaire 22 locking piece 61 circuit board C connector as code adjuster 36 substrate mounting body 42 wall 48 cord storage unit 50 the connector insertion portion 52 connector holding section as the chassis 24 through 26 fixtures as the instrument body data W power cord

Continuation of the front page (56) References JP-A-3-149703 (JP, A) JP-A-8-7637 (JP, A) JP-A 52-5078 (JP, U) JP-A 49-34574 (JP , U) Jpn. Hei 6-28934 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) F21V 27/00 F21V 21/16 F21V 23/00

Claims (3)

(57) [Claims] An apparatus provided with an insertion portion through which a power cord is inserted.
A fixture body, a board mount attached to the inside of the fixture body, a circuit board attached to the board fixture, a fixture for fixing the power cord to the fixture body, the fixture body and the board The power supply is formed between the
A cord storage unit for storing the source code, and a wall portion surrounding the cord storage portion provided on the substrate mounting member
Lighting equipment shall be the feature that it has provided the. 2. A connector provided on a power cord and electrically connected to a lighting device provided on a circuit board; a connector insertion portion provided on a board mounting body, through which the connector is inserted; claim 1, characterized in that the provided the connector equipped with a connector holding portion for engaging and holding
The lighting fixture as described. 3. A connector provided on the power cord and electrically connected to a lighting device provided on the circuit board; a connector insertion portion provided on the board mounting body, through which the connector is inserted; and a connector provided on the circuit board. 2. The lighting device according to claim 1 , further comprising a connector holding portion for engaging and holding said connector.