JP6960424B2 - Lighting device - Google Patents

Description

The present invention relates to a lighting device.

Currently, energy saving movements are in progress in various products. With the movement to save energy, the lighting industry is increasing the demand for LEDs with good luminous efficiency and energy saving as a light source. In household lighting, switching from incandescent light bulbs to LED light bulbs is progressing.

Until now, mercury lamps, which have a longer life than electric lamps and can illuminate brightly, have been used for lighting in factories and the like.

Japanese Unexamined Patent Publication No. 2005-158408

However, LED lighting devices have a longer life than mercury lamps, can illuminate as brightly as mercury lamps, have better startability than mercury lamps, and can reduce power consumption compared to mercury lamps, so lighting in factories and the like. Also, one using an LED as a light source is desired.

By the way, when using it in a factory, it is necessary to improve the water sealability to deal with moisture proof, rain proof, salt damage, dust, oil mist, etc. depending on the usage environment, but care should be taken not to complicate the assembly. There is a need.

An object of the present invention is to provide a structure of a lighting device having high workability and water sealing property.

In order to solve the above problems, the present invention provides a power supply BOX for accommodating a lighting device, a resin cover for closing the opening of the power supply BOX, and watertightness between the power supply BOX and the resin cover. The rubber packing for sealing has a block-shaped rubber packing for sealing located in the above, and the rubber packing for sealing has a seal contact surface portion in contact with the end surface of the power supply BOX, and an annular triangle projecting from the seal contact surface portion in the direction of the resin cover. The annular triangular rib has a rib, and the annular triangular rib is provided with a lighting device that comes into contact with the resin cover in a state where the power supply BOX, the rubber packing for sealing, and the resin cover are combined.

According to the present invention, it is possible to provide a structure of a lighting device having high workability and water sealing property.

Overall perspective view of the lighting device (A) Plan view of lighting device (b) Front view of lighting device (c) Side view of lighting device Partial exploded view of the lighting device (external power supply lead-in side) Partial exploded view of the lighting device (LED light source lamp connection side) (A) Front view of rubber packing for sealing (b) Side view of rubber packing for sealing (c) Rear view of rubber packing for sealing (d) Enlarged view of rubber packing for sealing (e) A- of rubber packing for sealing A sectional view

Hereinafter, the configuration of the lighting device 100 according to the embodiment of the present invention will be described with reference to FIGS. 1 to 5 attached. Further, for convenience of explanation in the embodiment, the ceiling side (not shown) is the upper side, and the floor surface side is the lower side.
The lighting device 100 is installed in a building, mainly on the ceiling surface inside a factory, or in a distribution board, and is connected to an external power source by being connected to an indoor wiring fixture provided in the building. It is used by being fixed at the position of.

FIG. 1 is an overall perspective view of the lighting device 100. The lighting device 100 includes an LED light source lamp 1 and a lighting device 2, and after installing the LED light source lamp 1 on the ceiling side and installing the lighting device 2 on the same ceiling surface or in the distribution panel, the lighting device 100 and the LED light source lamp 1 Connect the wiring between the lighting devices 2. FIG. 2 is a three-view view of the plane, front, and side of the lighting device. FIG. 3 shows a partially disassembled view of the external power supply connection side of the lighting device 1, and FIG. 4 shows a partially disassembled view of the LED light source lamp 1 connection side. FIG. 5 shows a single item diagram of the rubber packing 6 for sealing housed in the lighting device 2.

The lighting device 100 has a power supply box 4 and a lighting circuit board 3, the lighting circuit board 3 is inside the power supply box 4, and rubber for sealing is provided in the openings at both ends of the power supply box 4. It has a packing 6, and a resin cover 5 is provided on the outside of the sealing rubber packing 6 so as to cover the packing 6. The rubber packing 6 for sealing has a groove shape at a position where it meets the lighting circuit board 3 and a plurality of rib shapes on the side surface of the groove shape, so that the lighting circuit board 3 can be pressed. Further, the contour of the rubber packing 6 for sealing has a planar shape along the opening surface of the power supply box 4, and the watertightness can be maintained by pressing the rubber packings 6 together. Further, the rubber packing 6 for sealing has a triangular rib shape on the outer periphery on the surface to be combined with the resin cover 5, and is characterized in that watertightness is maintained by pressing the rubber packing 6. A sealing rubber packing 6 is provided between the power supply BOX 4 and the resin cover 5 for watertightness of both.

As shown in FIGS. 3 and 4, the lighting device 2 includes a lighting circuit board 3, a power supply BOX 4, a fixing bracket 4a, a resin sheet 4b for insulation, a resin cover 5, and a rubber packing 6 for sealing. It has an LED light source connecting outlet wire 7, an external power supply connecting outlet wire 8, a rubber bush 9, and a rubber bush holding metal fitting 10. The housing of the lighting device 2 is a power supply box 4 formed by extruding aluminum in the shape of a mouth. The power supply BOX 4 has a substantially prismatic shape and has openings at both ends. Since the lighting circuit board 3 housed in the power supply box 4 has a high temperature, it is desirable that the power supply box 4 as a housing is made of a material having good heat dissipation. Also. On the lower surface of the power supply box 4, there is a fixing bracket 4a for mounting on the ceiling, and it is desirable to use a material that supports the weight and has good heat dissipation. In addition, it is desirable to use aluminum, which is a light material, so that the fixing bracket 4a is not damaged by the weight of the power supply box 4.

As shown in FIGS. 3 and 4, there are connectors for wiring connection at both ends of the lighting circuit board 3, and the outlet wire 8 for connecting an external power supply and the outlet wire 7 for connecting an LED light source are connected.

The resin cover 5 is a substantially square member. The resin cover 5 is provided so as to close the opening of the power supply BOX 4 via the sealing rubber packing 6. The resin cover 5 includes a resin cover opening. A rubber bush 9 having a wiring through hole through which the lead wire passes is arranged in the resin cover opening. By arranging the rubber bush 9 in the opening of the resin cover, it has the effect of serving as a seal when the lead wire passes through. Further, in order to fix the rubber bush 9 to the resin cover 5, the rubber bush holding metal fitting 10 is put on the rubber bush 9 and fixed to the resin cover 5 with screws. By using the rubber bush holding metal fitting 10, the fixing holding force of the lead wire can be increased, and even if the fixing metal fitting 4a of the lighting device 2 is damaged, the holding of the lead wire leads to a direct drop. Can help you not. Therefore, it is desirable that the rubber bush 9 and the rubber packing 6 for sealing are separately provided as separate members.

The rubber packing 6 for sealing shown in FIG. 5 is for preventing water droplets from entering the inside of the lighting device 2 even in an abnormal state where dust or water droplets are transmitted to the outside of the lighting device 2 due to a rain leak in a factory environment. be. Further, since the lighting device 2 may be installed in an environment with large vibration, it is desirable that the rubber packing 6 for sealing is made of a soft material having good adhesion.

The one having the highest temperature in this embodiment is the lighting circuit board 3. The heat of the lighting circuit board 3 is dissipated by the power supply box 4, but the material of the sealing rubber packing 6 that is in direct contact with the power supply box 4 is preferably a material that can withstand a high temperature environment. In addition, the rubber packing 6 for sealing and the resin cover 5 on both ends are heat-resistant materials so that the spread of fire ends inside the housing in the unlikely event that the capacitor in the lighting circuit board 3 is short-circuited and sparks occur. Is desirable.

A heat radiating plate for heat radiating is arranged on the lighting circuit board 3. The heat dissipation plate is provided with holes for fixing screws, and screws are fixed from the outer side surface of the power supply box 4.

Except for the surface where the heat sink is in contact, there is a resin sheet 4b for insulation between the lighting circuit board 3 and the power supply box 4. The resin sheet 4b is bent along the shape of the mouth of the power supply box 4. Therefore, as a method of fixing the lighting circuit board 3 in combination with screw fixing, the sealing rubber packing 6 is provided with a groove shape for fixing the board. If the rigidity is increased to fix the lighting circuit board 3, the impact is directly transmitted to the semiconductor from the outside. Therefore, the impact can be mitigated by fixing the side surface portion with the rubber packing 6 for sealing.

The seal rubber packing 6 of FIG. 5 is provided with a seal ground contact surface portion 6a in contact with the end surface of the power supply BOX 4 and an annular triangular rib 6b protruding from the seal ground contact surface portion in the resin cover direction as shown in the enlarged view. .. The triangular rib 6b is provided so that the rib on the substantially triangular shape forms an annular shape on the outer circumference on the side in contact with the resin cover 5. By crushing the triangular rib 6b with a line (by crushing the apex of the triangular rib with the surface of the resin cover), the watertightness of the resin cover 5 side can be ensured. In a state where the power supply BOX 4, the rubber packing 6 for sealing, and the resin cover 5 are combined, the annular triangular rib comes into contact with the resin cover 5.

As shown in FIG. 5, the sealing rubber packing 6 has a block shape. Due to the block shape, there is no need to crawl the O-ring etc. along the groove as was used in the past, and watertightness can be ensured simply by placing the sealing rubber packing 6 in the opening of the power supply box 1-1b. It is possible to achieve the effect of simplifying the work process and reducing the work process.

1 LED light source lamp
2 Lighting device
3 Lighting circuit board
3a Heat dissipation plate
4 Power supply box
4a Fixing bracket
4b Insulation resin sheet
5 Resin cover
6 Rubber packing for sealing
7 LED light source connection outlet
8 Outlet for connecting external power supply
9 Rubber bush
10 Rubber bush retainer

Claims (1)

Equipped with LED light source lamp and lighting device
The lighting device includes a lighting circuit board, a power supply BOX for housing the lighting circuit board, and a resin cover for closing the opening of the power supply BOX, both between the resin cover and the power supply BOX Has a block-shaped sealing rubber packing, which is located for watertightness,
The lighting circuit board is connected to the LED light source lamp by wiring, and is connected to the LED light source lamp.
The sealing rubber packing has a seal grounding surface portion in contact with the end surface of the power supply BOX, an annular triangular rib protruding from the seal grounding surface portion in the direction of the resin cover, and a groove shape for fixing the lighting circuit board. And have
Wherein a power supply BOX, and the sealing rubber packing, the resin cover in a state that combines the illumination device triangular projection of the annular equipped with the lighting device in contact with the resin cover.

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