JP7010606B2 - lighting equipment - Google Patents

Description

The present invention relates to a luminaire, and more particularly to a luminaire with a breathing cap that ensures internal waterproofness and breathability.

Conventionally, as a lighting fixture of this kind, for example, there is one disclosed as a headlamp in Patent Document 1.

In the disclosed headlamp, a bulb serving as a light source is provided in a lamp chamber formed by a housing and a lens, a breathing hole is provided in the housing, and a filter and a cap are provided so as to cover the breathing hole. Has a configuration. The breathing hole is hidden by a reflector or the like arranged in front so that it cannot be seen from the front of the vehicle (headlamp).

Further, in Patent Document 2, a low beam optical system and a high beam optical system are arranged in a lamp chamber formed by a housing and an outer lens, and a vent hole communicating with the lamp chamber is formed on the back surface of the housing. A headlamp is disclosed in which the ventilation holes are closed by a breathing cap. In this case, the vents blocked by the breathing cap are opaque by applying black paint to the front region of the vents of the outer lens placed in front so that they cannot be seen from the front view of the vehicle (headlamp). There is.

JP-A-2016-091642 Patent No. 6061070

By the way, in the headlamp of Patent Document 1, the filter and the cap provided in the breathing hole, and in the headlamp of Patent Document 2, the breathing cap that closes the ventilation hole can be confirmed from the front of the headlamp in the attached state. Can not. Therefore, it is necessary to go around the back side of the housing and check it through a complicated procedure.

As a result, there is a possibility that the headlamp may malfunction due to the overlooked state in which the mounting is not securely performed.

Therefore, the present invention has been invented in view of the above problems, and an object thereof is to provide a lighting fixture capable of easily confirming the attached state of a breathing cap and preventing the occurrence of a defect in advance. There is something in it.

In order to solve the above problems, the invention according to claim 1 of the present invention includes a housing in which a breathing cap is attached to a breathing hole, an extension having a through hole for confirming the attachment state of the breathing cap, and a light source. A module and an outer lens are provided, and the light source module is arranged on the housing side in a closed space formed by the housing and the outer lens, and the extension is arranged on the outer lens side. A flange portion is provided on the edge portion of the light source module, and the flange portion is attached to the surface of the housing, whereby the light source module is fixed to the housing, and the extension corresponds to the arrangement area of the light source module. A window hole having a shape dimension to be formed is formed, and is located at a position where the through hole of the extension and the breathing hole of the housing overlap each other in the front view from the front of the outer lens. It is characterized in that the breathing cap attached to the breathing hole of the housing can be directly seen.

The invention according to claim 2 of the present invention is characterized in that, in claim 1, the light source module does not exist in the region connecting the through hole of the extension and the breathing hole of the housing. be.

Further, in the invention described in claim 3 of the present invention, in either claim 1 or 2, the inner surface of the housing is provided with a decorative portion in a region surrounding the periphery of the breathing hole. It is characterized by that.

Further, the invention according to claim 4 of the present invention is characterized in that, in any one of claims 1 to 3, the through hole of the extension has an edge bent in an annular shape toward the light source module side. It is to be.

Further, in the invention described in claim 5 of the present invention, in any one of claims 1 to 3, the through hole of the extension has an edge partially bent toward the outer lens side. It is a feature.
Further, in any one of claims 1 to 5, the invention according to claim 6 of the present invention is configured such that the light source module is formed in a matrix in which a plurality of LEDs are arranged vertically and horizontally at predetermined intervals. It is characterized by that.
Further, the invention according to claim 7 of the present invention states that , in claim 6, the plurality of LEDs include a spherical lens that is convex forward about the optical axis of the LED. It is a feature.
Further, according to the eighth aspect of the present invention, in claim 6, the plurality of LEDs are provided with a front-convex aspherical lens centered on the optical axis of the LED. It is characterized by.
Further, the invention according to claim 9 of the present invention is characterized in that, in any one of claims 1 to 8, a plurality of the light source modules are provided at predetermined intervals. ..

According to the luminaire of the present invention, the light source module is arranged on the housing side in the closed space formed by the housing in which the breathing cap is attached to the breathing hole and the outer lens, and the breathing cap of the housing is arranged on the outer lens side. An extension having a through hole for confirming the mounting state of the lens was provided. As a result, when viewed from the front of the outer lens, the breathing cap attached to the breathing hole of the housing is attached to the breathing hole of the housing through the through hole of the extension at the position where the through hole of the extension and the breathing hole of the housing overlap. You can see it directly.

Therefore, it has been possible to realize a lighting fixture that can easily confirm the attachment state of the breathing cap to the breathing hole of the housing and prevent the occurrence of a defect in advance.

It is an exploded perspective view of the embodiment which concerns on the luminaire of this invention. It is a top view of the embodiment. FIG. 2 is a cross-sectional view taken along the line AA of FIG. It is explanatory drawing concerning the through hole of the extension which looks at the breathing hole of a housing. Similarly, it is explanatory drawing relating to the through hole of the extension which looks at the breathing hole of a housing. It is explanatory drawing which shows the state in the vicinity of the breathing hole of a housing. Similarly, it is explanatory drawing which shows the state in the vicinity of the breathing hole of a housing. It is explanatory drawing concerning the through hole of the extension which looks at the breathing hole of a housing.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to FIGS. 1 to 8 (the same parts are designated by the same reference numerals). Since the embodiments described below are suitable specific examples of the present invention, various technically preferable limitations are added, but the scope of the present invention particularly limits the present invention in the following description. Unless otherwise stated, the present invention is not limited to these embodiments.

1 is an exploded perspective view of an embodiment according to the luminaire of the present invention, FIG. 2 is a plan view of the embodiment, and FIG. 3 is a sectional view taken along the line AA of FIG.

The luminaire 1 of the embodiment includes a luminaire 2 having a light source and a mounting stay 3 for mounting the luminaire 2, of which the luminaire 2 includes a housing 10, a light source module 20, an extension 30, an outer lens 40, and an outer lens 40. It is equipped with a breathing cap 50.

The housing 10 is made of a metal material such as aluminum and has a rectangular shape in a plan view. On the back surface side, the housing 10 rises from the back surface 11 over almost the entire surface of the back surface 11 and is rearward with a predetermined width, length, and height. A plurality of heat radiating fins 12 extending in parallel are arranged in parallel at predetermined intervals.

Similarly, a pair of stay support portions 13 that stand up from the back surface 11 along the edges and extend rearward with a predetermined width, length, and height are provided on the edges of the back surface 11 on opposite sides. .. Each of the pair of stay support portions 13 is provided with a through hole 13a through which a screw for rotatably fastening and supporting the lighting unit 2 to the mounting stay 3 passes.

On the surface side of the housing 10, a pair of standing wall portions 15 rising from the surface 14 in an annular shape along the peripheral edge and extending forward at a predetermined width and height are parallel to each other at a predetermined interval on the peripheral edge portion of the surface 14. It is arranged facing each other. The inner groove portion 16 surrounded by the pair of standing wall portions 15 composed of the inner standing wall portion 15a and the outer standing wall portion 15b has a function of a leg seal groove in which the leg portion 41 of the outer lens 40, which will be described later, is inserted and sealed. have.

The region 14a of the surface 14 of the housing 10 surrounded by the inner standing wall portion 15a is composed of a flat surface, and the breathing cap 50 penetrating the housing 10 and formed of a resin material in the region 14a of the surface 14 A breathing hole 17 into which the housing is inserted and a plurality of through holes 18 through which a screw for mounting and fixing the light source module 20 described later passes are provided.

Further, from within the region 14a of the surface 14, a plurality of bosses 19 that rise from the surface 14 and extend forward at a predetermined height are provided. Each boss 19 has a female screw 19a for screwing and fixing the extension 30 described later with a screw.

The light source module 20 is composed of a plurality of light sources (four in this embodiment), and each light source module 20 includes an LED 21, a substrate 22, and an inner lens 25.

As the substrate 22, a metal substrate is used in which a base substrate is made of a metal material such as aluminum, iron, and copper, and a circuit pattern by a conductor is formed on the base substrate via an insulating layer. In addition to the metal substrate, the substrate 22 may be a ceramic substrate whose base substrate is made of a ceramic material, a glass epoxy substrate (FR-4), a glass composite substrate (CEM-3), or the like.

The substrate 22 has a rectangular shape and has a flange portion 23 that protrudes outward from each of the two end portions facing each other. Each flange portion 23 is provided with a through hole 23a through which a screw for mounting and fixing the substrate 22 to the region 14a of the surface 14 of the housing 10 is inserted and fastened.

Further, on the surface of the substrate 22, a plurality of LEDs 21 are mounted in a matrix at predetermined intervals in the vertical and horizontal directions.

An inner lens 25 is attached to the substrate 22 so as to cover the substrate 22 from the side on which the plurality of LEDs 21 are mounted. The inner lens 25 is made of a translucent material, and has a spherical or aspherical surface that is convex forward about the optical axis of each LED 21 on the surface (the surface opposite to the surface facing the LED 21). It has a lens surface 26 in the shape of a lens.

The extension 30 is formed by sheet metal processing using a metal flat plate such as aluminum as a material, and a plurality of (four in this embodiment) rectangular window holes 31 are provided at predetermined intervals. Each of the window holes 31 has a shape dimension corresponding to an arrangement region of a plurality of lens surfaces 26 formed on the inner lens 25 constituting the light source module 20.

Further, the extension 30 has a plurality of through holes 32 through which screws that are screwed into the female screw 19a of the boss 19 provided in the housing 10 and screwed and fixed the extension 30 to the boss 19 pass through, and similarly to the housing 10. A through hole 33 that can be viewed through the provided breathing hole 17 is formed.

The outer lens 40 is made of a translucent material such as a polycarbonate resin, has a curved surface whose central portion is convex forward, and is annular on the back surface side to the peripheral edge portion of the back surface and from the back surface to the peripheral edge portion. A leg portion 41 that stands up and extends rearward with a predetermined width and height is formed.

Therefore, the lighting unit 2 provided with the housing 10, the light source module 20, the extension 30, the outer lens 40, and the breathing cap 50 is assembled as follows.

The four light source modules 20 are spaced apart from each other on the flat surface of the surface 14 of the housing 10 in the region 14a surrounded by the inner standing wall portion 15a, with the back surfaces of the substrates 22 of the respective light source modules 20 in surface contact with each other. The light source module 20 and the housing 10 are placed and arranged, and the through hole 23a formed in the flange portion 23 provided on the substrate 22 of the light source module 20 and the through hole 18 provided in the region 14a of the housing 10 are integrated. They are fastened to each other by screws that pass through.

Further, in the housing 10, the breathing cap 50 is inserted into the breathing hole 17 provided in the housing 10 via the waterproof packing 51, and the hook portion 50a is engaged with the housing 10, which will be described later. It has a breathing (ventilation) function for the outside air in a closed space formed by the housing 10 and the outer lens 40, and a waterproof function for preventing water from entering from the outside.

Then, the extension 30 is arranged so as to cover the light source module 20 from the front, and the screw through which the through hole 32 formed in the extension 30 is inserted is screwed into the female screw 19a of the boss 19 provided in the housing 10. As a result, the extension 30 is screwed and fixed to the boss 19.

Further, the outer lens 40 is arranged so as to cover the extension 30 from the front, and the annular leg portion 41 formed on the outer lens 40 is inserted into the annular groove portion 16 formed on the housing 10 and fixed by the sealing agent. As a result, the housing 10 and the outer lens 40 are integrated.

In other words, the light source module 20 and the extension 30 are housed and supported in a closed space formed by the housing 10 and the outer lens 40.

In this case, the breathing hole 17 provided in the housing 10 and the through hole 33 provided in the extension 30 are located on a line perpendicular to the flat surface of the region 14a of the surface 14 of the housing 10 through the region where the light source module 20 does not exist. is doing.

That is, when the lighting unit 2 is viewed from the front direction of the outer lens 40 through the outer lens 40 (front view), a plurality of lens surfaces 26 formed on the inner lens 25 constituting the light source module 20 from the window hole 31 of the extension 30. You can see the placement area of.

At the same time, the through hole 33 of the extension 30 and the breathing hole 17 of the housing 10 are located at an overlapping position, and the breathing provided in the housing 10 from the through hole 33 of the extension 30 avoiding the arrangement position of the light source module 20. The hole 17 can be seen directly. As a result, the fitting and mounting state of the breathing cap 50 attached to the breathing hole 17 can be easily confirmed by frontal view without turning to the rear of the housing 10, so that the occurrence of a defect can be prevented in advance and the lighting can be performed. The optical characteristics of the unit 2 can be reliably maintained.

The lighting unit 2 having the above configuration is rotatably connected to the mounting stay 3 via a connecting screw (not shown).

By the way, as shown in FIG. 4, the through hole 33 of the extension 30 is formed of a flat surface in which the edges of the holes do not protrude on both sides. Therefore, when the lighting unit 2 is viewed through the outer lens 40 from an oblique direction in front of the outer lens 40, the side wall 27 of the inner lens 25 of the light source module 20 comes into view from the through hole 33 of the extension 30, which makes it look good. There is a risk of damage.

Therefore, as shown in FIG. 5, it is also possible to bend the edge of the through hole 33 of the extension 30 inward in an annular shape by drawing or the like. As a result, the line of sight is blocked by the bent portion 60 and the internal objects in the lighting unit 2 are prevented from entering the field of view, so that a good appearance can be ensured.

Further, when the lighting unit 2 is viewed through the outer lens 40 from a direction slightly deviated from the front front of the outer lens 40, as shown in FIG. 6, the breathing hole of the surface 14 of the housing 10 is seen from the through hole 33 of the extension 30. The vicinity region 61 of 17 comes into view, which may spoil the appearance.

Therefore, as shown in FIG. 7, it is also possible to provide a decorative portion 62 (for example, a metallic glossy portion or the like) by painting or attaching a seal to the area surrounding the breathing hole 17 on the surface 14 of the housing 10. be. As a result, a good appearance can be produced by directing the line of sight to the decorative portion 62.

It is not possible to bend the edge of the through hole 33 of the extension 30 inward in an annular shape, and to provide the decorative portion 62 on the surface 14 of the housing 10 by painting or attaching a seal to the area surrounding the breathing hole 17. It is possible to do it at the same time.

Further, it is also possible to utilize the through hole 33 of the extension 30 as a pair of lighting units. Specifically, as shown in FIG. 8 (cross-sectional view taken along the line BB of FIG. 2), the extension 30 is provided by partially bending the edge of the through hole 33 of the extension 30 outward to provide the bent portion 63. The convection flowing on the side (E) opposite to the side of the board (not shown) on which the LED is mounted is taken into the side (F) of the board (not shown) on which the LED is mounted to generate heat from the LED. Efficient heat dissipation. This makes it possible to suppress the temperature rise due to the self-heating of the LED.

1 ... Lighting equipment 2 ... Lighting unit 3 ... Mounting stay 10 ... Housing 11 ... Back side 12 ... Radiation fin 13 ... Stay support 13a ... Through hole
14 ... Surface 14a ... Region 15 ... Standing wall 15a ... Inner standing wall 15b ... Outer standing wall 16 ... Groove (leg seal groove)
17 ... Breathing hole 18 ... Through hole 19 ... Boss 19a ... Female screw 20 ... Light source module 21 ... LED
22 ... Substrate 23 ... Flange portion 23a ... Through hole 25 ... Inner lens 26 ... Lens surface 27 ... Side wall 30 ... Extension 31 ... Window hole 32 ... Through hole 33 ... Through hole 40 ... Outer lens 41 ... Leg 50 ... Breathing cap 50a ... Hook part 51 ... Waterproof packing 60 ... Folded part 61 ... Area 62 ... Decorative part 63 ... Folded part

Claims (9)

A housing with a breathing cap attached to the breathing hole,
An extension with a through hole for checking the attachment status of the breathing cap,
Light source module and
With an outer lens,
The light source module is arranged on the housing side in the closed space formed by the housing and the outer lens, and the extension is arranged on the outer lens side.
A flange portion is provided on the edge portion of the light source module.
By attaching the flange portion to the surface of the housing, the light source module is fixed to the housing.
A window hole having a shape dimension corresponding to the arrangement area of the light source module is formed in the extension.
A breathing cap attached to the breathing hole of the housing through the through hole of the extension is located at a position where the through hole of the extension and the breathing hole of the housing overlap each other when viewed from the front of the outer lens. A lighting fixture that is characterized by being able to be seen directly. The luminaire according to claim 1, wherein the light source module does not exist in the region connecting the through hole of the extension and the breathing hole of the housing. The luminaire according to claim 1 or 2, wherein a decorative portion is provided on the inner surface of the housing in an area surrounding the breathing hole. The luminaire according to any one of claims 1 to 3, wherein the through hole of the extension is bent in an annular shape toward the light source module. The luminaire according to any one of claims 1 to 3, wherein the through hole of the extension is partially bent toward the outer lens side. The lighting fixture according to any one of claims 1 to 5, wherein the light source module is configured in a matrix in which a plurality of LEDs are arranged vertically and horizontally at predetermined intervals. The luminaire according to claim 6, wherein the plurality of LEDs are provided with a spherical lens that is convex forward about the optical axis of the LED. The luminaire according to claim 6, wherein the plurality of LEDs are provided with an aspherical lens that is convex forward about the optical axis of the LED. The lighting fixture according to any one of claims 1 to 8, wherein a plurality of the light source modules are provided at predetermined intervals.

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