JP5897744B2 - Lighting apparatus and LED light source unit - Google Patents

Description

  The present invention relates to a lighting apparatus and an LED light source unit suitable for use in, for example, floodlights in parking lots and floodlights such as signboards and hanging curtains.

  Conventionally, HID lighting fixtures that use HID (High Intensity Discharge) lamps that are easy to increase the output as the light source are suitable lighting fixtures such as floodlights for parking lots and billboard lighting. (For example, refer to Patent Document 1). In this luminaire, an HID lamp is inserted through a circular insertion opening provided in a reflecting mirror having a paraboloid of revolution, a light emitting portion of the HID lamp is disposed at the focal position of the reflecting mirror, and the emitted light of the HID lamp is emitted. It is configured to be reflected by the reflecting mirror so as to be irradiated with substantially parallel light.

JP 2011-81954 A

In recent years, LED lighting fixtures using LEDs have become widespread. When renewing from a conventional HID lighting fixture to an LED lighting fixture, the entire lighting fixture must be replaced. Conventionally, there is a case where one space is illuminated using a number of HID lighting fixtures. When replacing one or two HID lighting fixtures among a large number of HID lighting fixtures, there is a problem that if the LED lighting fixtures with different designs are replaced, the overall lighting design will be disrupted. It will be replaced with a lighting fixture.
The present invention has been made in view of the above-described circumstances. For renewal from an HID lighting fixture to an LED lighting fixture, for example, one of a large number of HID lighting fixtures can be used without breaking the overall lighting design. Another object is to provide a lighting fixture and an LED light source unit that can exchange only two HID lighting fixtures.

The present invention includes a reflector unit in which a light transmitting member is disposed at a front end portion and an HID lamp unit can be attached to a rear end portion. The rear end portion of the reflector unit is used as a light source instead of the HID lamp unit. An LED light source unit including LEDs can be attached, and the LED light source unit includes an LED light source reflector that controls light distribution of the LED without causing the reflector of the reflector unit to control light distribution. A protective cover is disposed at the front opening of the LED light source reflector, and the protective cover is provided with a vent hole that is an arc-shaped long hole. It is arranged so as to suppress unevenness in illuminance on the irradiated surface by transmitted light, and is formed in a size that does not allow fingers to enter .
In the present invention, since the LED light source unit can be attached to the rear end portion of the reflecting mirror unit instead of the HID lamp unit, the HID lighting fixture can be renewed from the HID lighting fixture without changing the overall lighting design. For example, only one or two HID lighting fixtures can be exchanged among a number of HID lighting fixtures after diverting the existing portion of the lighting fixture.

In the present invention, the HID lighting fixture in which the HID lamp unit is attached to the rear end portion of the reflecting mirror unit may be an HID lighting fixture defined in JIL 5004-2012 lighting fixture for public facilities.
In the present invention, the light transmission member may be disposed in a waterproof state on the reflecting mirror unit, and the HID lamp unit may be mounted in a waterproof state.
In the present invention, when renewing to an LED lighting fixture with respect to an HID lighting fixture for outdoor use, an existing part of the HID lighting fixture is diverted without destroying the overall lighting design. One or two HID lighting fixtures can be exchanged.
Moreover, in this invention, a mounting flange may be provided in the rear-end part of the said reflecting mirror unit, and the phase light flange which becomes a waterproof state via a sealing member may be provided in the said LED light source unit.
In the present invention, the LED light source unit may be insulated between the LED light source and the phase flange.

In addition, the present invention is an LED light source unit including an LED as a light source, and a reflector unit in which a light transmitting member is disposed at a front end and an HID lamp unit can be attached to a rear end via a mounting flange. A phase flange corresponding to the mounting flange can be mounted instead of the HID lamp unit, and the light distribution of the LED is controlled without causing the reflecting mirror of the reflecting mirror unit to contribute to the control of the light distribution. An LED light source reflecting mirror is provided , a protective cover is disposed in the front opening of the LED light source reflecting mirror, and the protective cover is provided with a vent hole that is an arc-shaped long hole. Further, it may be arranged so as to suppress unevenness in illuminance on the irradiated surface due to transmitted light from a non-existing portion, and may be formed in a size that does not allow fingers to enter .
The light transmission member may be arranged in a waterproof state on the reflecting mirror unit, and the HID lamp unit may be attached in a waterproof state.
The LED light source unit may have a heat radiating fin, and may include a resin cover having a vent hole in a direction perpendicular to the heat radiating fin.
The LED light source unit may have a reflecting mirror, and may include a protective cover having a vent hole on the front surface of the reflecting mirror. Further, the vent may be for the purpose of not hindering heat dissipation, may be for the purpose of reducing a decrease in optical performance, or has both purposes. It may be a thing.
Further, a protective cover may be disposed in the front opening of the LED light source reflecting mirror, and a vent hole may be provided in the protective cover.
The vent holes may be concentrically disposed in the protective cover, the vent holes may be formed as arc-shaped long holes, and may be annularly arranged at equal intervals from the center of the protective cover toward the outside.

  According to the present invention, when renewing from an HID lighting fixture to an LED lighting fixture, instead of replacing all the lighting fixtures, the existing portion of the HID lighting fixture is diverted, and then the HID lighting fixture is changed to the LED lighting fixture. Can be renewed.

It is a figure of the LED lighting fixture which concerns on one Embodiment of this invention. It is a disassembled perspective view of the LED light source unit which concerns on one Embodiment of this invention. It is a figure of the LED light source unit which concerns on one Embodiment of this invention. It is the figure which showed the protective cover arrange | positioned at the front opening of a LED light source reflective mirror. It is a figure of the LED lighting fixture which concerns on one Embodiment of this invention. It is a figure of the HID lighting fixture which concerns on one Embodiment of this invention. It is a figure of a HID lighting fixture.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a diagram showing an overall image of the LED lighting apparatus 1 according to the present embodiment.
The LED lighting apparatus 1 includes a reflecting mirror unit 5 and an LED light source unit 10.
The reflecting mirror unit 5 includes a reflecting mirror 4, an irradiation opening 3 at the tip of the reflecting mirror 4, and a front glass (light transmitting member) 2 fixed to the irradiation opening 3.
The front glass 2 is so-called caulking coupled to the periphery of the irradiation opening 3, and the outer periphery of the front glass 2 and the periphery of the irradiation opening 3 are in a waterproof state. As shown in FIG. 5, the reflecting mirror unit 5 includes an opening 6 at the rear end of the reflecting mirror 4, a light source unit connection portion (mounting flange) 7 provided around the opening 6, and a rear end of the reflecting mirror 4. And an arm 9 attached to the arm attachment piece 8.
The LED light source unit 10 is attached to the opening 6 at the rear end of the reflecting mirror 4 through a mounting flange 7 in a waterproof state.

2 and 3 show the LED light source unit 10.
The LED light source unit 10 includes a base plate 18, a heat sink 19 connected to the base plate 18, and a resin cover 20 that covers the heat sink 19. A COB type LED 17 is disposed at the center of the base plate 18. The COB type LED 17 has a chip-on-board (COB) structure in which a large number of LEDs are densely arranged on the LED substrate 31 to form a planar light emitting portion 31A having a substantially circular shape (which may be a quadrangle). It is a light emitting device. The COB type LED 17 is an LED light source with a large amount of light and a high luminance because a large number of LEDs are densely arranged. In this configuration, a power supply box (not shown) is provided separately from the LED light source unit 10. Therefore, the LED light source unit 10 that can include a plurality of optical performances can be configured by changing the power supply value.
On the COB type LED 17, a silicon packing 16, an insulating sheet 15, and an LED light source waterproof packing 14 are disposed.

A phase flange 13 is disposed in close contact with the LED light source waterproof packing 14, and the phase flange 13 is joined to the mounting flange 7 of the reflector unit 5. A handle 13a is attached to the companion flange 13, and the work for renewing the LED lighting apparatus can be easily performed with the handle 13a. On the companion flange 13, the LED pressing metal 12 and the LED light source reflecting mirror 11 are arranged.
In addition, as shown in FIG. 4, you may arrange | position the protective cover 30 which has light transmittances, such as an acrylic board, in the front opening of the LED light source reflective mirror 11. FIG.
When the LED light source unit 10 is used alone, for example, the protective cover 30 is provided for protecting the charging unit from the viewpoint of protection of the LED light source and safety. In order not to touch the COB type LED 17 directly with a hand, the protective cover 30 may be provided with a plurality of vent holes 29, 29... The vents 29, 29,... Simultaneously exhibit the effect of protecting the charging unit and the effect of suppressing the decrease in optical performance (light output) due to the temperature rise of the LED by attaching the protective cover 30. Further, the vent holes 29, 29,... Are concentrically arranged on the cover surface of the protective cover 30, as shown in FIG. These vent holes 31, 31... Are formed as arc-shaped long holes, and are arranged in an annular shape at equal intervals from the center of the protective cover 30 to the outside. With this arrangement, the effect of suppressing unevenness in illuminance on the irradiated surface due to the transmitted light from the portion where the vent holes 29, 29.

  The base plate 18 is a board attachment member to which the COB type LED 17 is directly attached, and is a high heat conductive material. For example, it is formed from aluminum which is a metal. As shown in FIG. 2, the base plate 18 is formed in a substantially disk shape, and an LED housing recess 40 is provided at the center of the surface, and the LED substrate 31 of the COB LED 17 is housed in the LED housing recess 40. The upper surface thereof is covered with the silicon packing 16 and the insulating sheet 15. In order to promote heat transfer from the COB type LED 17 to the LED housing recess 40, heat conduction grease or the like is applied to the contact surfaces of the two, or a heat conduction sheet is interposed to reduce the heat resistance between the two. May be.

  On the surface of the base plate 18, an annular LED press fitting 12 surrounding the LED housing recess 40 is fixed with screws, and the LED light source reflecting mirror 11 is fixed to the LED press fitting 12. The LED pressing metal 12 presses the LED substrate 31, the silicon packing 16, the insulating sheet 15, the LED light source waterproof packing 14, and the companion flange 13 of the COB type LED 17 from above with screwing and fixing to the base plate 18. It is configured. As a result, the fixing of the LED pressing metal fitting 12 also serves as the fixing of the COB type LED 17, and the fixing of the COB type LED 17 to the base plate 18 with screws is not necessary.

The LED light source reflecting mirror 11 has a rotating body shape such as a rotating paraboloid or a spheroid, and a rotating parabolic reflecting surface or a rotating ellipsoid reflecting surface determined according to a predetermined light distribution control is formed on the inner surface thereof. It is a concave mirror. The LED light source reflecting mirror 11 is configured by using a resin material as a base material and coating the surface with a reflecting material, and is reduced in weight as compared with the case of forming from a metal material. Further, the LED light source reflecting mirror 11 is attached and fixed to the LED presser fitting 12 by a screw-in type. Specifically, a flange 33 that engages with the groove of the LED pressing metal 12 is provided at the edge of the base end portion 35 </ b> A of the LED light source reflecting mirror 11. The LED holding fitting 12 is provided with an engaging groove 42A, and the hook part 33 enters the engaging groove 42A, and the hook part 33 engages with the engaging groove 42A so as not to fall off as the LED light source reflecting mirror 11 rotates. To do.
When the LED light source reflecting mirror 11 is fixed, the LED light source reflecting mirror 11 can be fixed without using a separate tool by screwing the flange 33 into the engaging groove 42A. Further, the flange portion 33 of the LED light source reflecting mirror 11 is also formed of a resin material, and a spring force (elastic force) acts between the engagement groove 42A and the flange portion 33, and the coupling force between them is enhanced.

In this LED light source unit 10, the base plate 18 and the LED presser fitting 12 are insulated by the insulating sheet 15, and the LED presser fitting 12 and the companion flange 13 are insulated by the LED light source waterproof packing 14.
Therefore, the COB type LED 17 attached to the base plate 18 and the phase flange 13 are insulated. According to this, as shown in FIG. 1, when the mounting flange 7 of the reflector unit 5 and the phase flange 13 of the LED light source unit 10 are joined, the COB type LED 17 and the reflector unit 5 are insulated. Therefore, the connection of the ground wire of the COB type LED 17 becomes unnecessary.

The heat sink 19 is a heat dissipation mechanism that dissipates heat transmitted from the COB type LED 17 to the base plate 18. Specifically, the heat sink 19 includes a plurality of heat radiation fins 48 and a plurality of heat pipes 49 that convey the heat of the COB type LED 17 transmitted to the base plate 18 to the heat radiation fins 48.
The radiating fins 48 are substantially rectangular plate materials, and are formed of an aluminum plate that is a lightweight metal material having excellent thermal conductivity. Each of the heat pipes 49 penetrates a large number of heat radiation fins 48, and these heat radiation fins 48 are laminated and bundled together so as to be spaced apart from each other. These radiating fins 48 are arranged so as to extend vertically from the back surface of the base plate 18 by a support fitting (not shown). The support bracket (not shown) supports a predetermined gap between the radiating fin 48 and the back surface of the base plate 18. Air can flow through the back surface of the base plate 18 and the radiating fin 48 through the gap. Heat accumulation on the back surface is suppressed.
In this configuration, a resin cover 20 is provided to cover the heat sink 19. The resin cover 20 is provided with a number of air circulation holes perpendicular to the heat sink 19.

FIG. 5 is an exploded perspective view of the LED lighting apparatus 1.
In the reflecting mirror unit 5, an annular mounting flange 7 is disposed around the rear end opening 6 of the reflecting mirror 4. The mounting flange 7 is provided with a circumferential groove (not shown) in the inner circumferential portion, and an O-ring 51 is disposed in the circumferential groove (not shown).
Moreover, the attachment flange 7 is provided with the stopper 52 arrange | positioned on the outer peripheral part at 3 equally in the circumferential direction. The three stoppers 52 have the same structure, a pair of ear pieces 53 fixed to the rear end of the reflecting mirror 4, a bolt 54 having one end rotatably supported between the pair of ear pieces 53, A wing nut 55 screwed to the other end of the bolt 54 is provided.
In the LED light source unit 10, the companion flange 13 joined to the mounting flange 7 of the reflecting mirror unit 5 is stopped on the close contact surface 13 b in close contact with the O-ring 51 and the outer peripheral side of the close contact surface 13 b as shown in FIG. A locking piece 57 facing the tool 52 is provided. As shown in FIG. 1, a groove 57 a is formed in the locking piece 57 so that the bolt 54 can be engaged when the companion flange 13 is joined to the mounting flange 7.
By connecting the mounting flange 7 having the above-described configuration and the companion flange 13 and connecting the stopper 52 and the locking piece 57, the LED light source unit 10 functions as the O-ring 51 with respect to the reflecting mirror unit 5. Combined with waterproof.

In this configuration, the LED light source unit 10 controls the light distribution by the LED light source reflecting mirror 11. Therefore, in the LED lighting apparatus 1, the reflecting mirror 4 of the reflecting mirror unit 5 merely provides a waterproof structure and does not contribute to the control of the light distribution.
Further, the LED light source reflecting mirror 11 is not essential. For example, assuming that the COB type LED 17 is used, a light distribution lens may be used instead of the LED light source reflecting mirror 11.

FIG. 6 is an exploded perspective view of the HID lighting apparatus 100.
The HID lighting fixture 100 includes an HID lamp unit 71 and a reflecting mirror unit 5 having the same configuration as the reflecting mirror unit of the above-described embodiment. That is, the reflecting mirror unit 5 includes at least a mounting flange 7 having a structure common to the mounting flange having the above-described configuration.
The HID lamp unit 71 includes an HID lamp 72 as a light source, and a substantially cylindrical light source tube 73 that accommodates the HID lamp 72, a socket (not shown), and the like. A companion flange 113 is provided.

The companion flange 113 is arranged to attach the HID lamp unit 71 to the reflecting mirror unit 5.
As described above, the mounting flange 7 of the reflecting mirror unit 5 has a circumferential groove (not shown) in the inner circumferential portion, an O-ring 51 is disposed in the circumferential groove (not shown), and the outer circumferential portion has A stopper 52 is provided that is equally divided into three in the circumferential direction.
The three stoppers 52 have the same structure, a pair of ear pieces 53 fixed to the rear end of the reflecting mirror 4, a bolt 54 having one end rotatably supported between the pair of ear pieces 53, A wing nut 55 screwed to the other end of the bolt 54 is provided.

In the HID lamp unit 71, a companion flange 113 joined to the mounting flange 7 of the reflecting mirror unit 5 is a stopper on the close contact surface (not shown) that is in close contact with the O-ring 51 and on the outer peripheral side of the close contact surface (not shown). 52 and a locking piece 157 facing each other. The locking piece 157 is formed with a groove portion 157 a into which the bolt 54 can be engaged when the phase flange 113 is joined to the mounting flange 7.
By connecting the mounting flange 7 having the above-described configuration and the companion flange 113 and connecting the stopper 52 and the locking piece 157, the HID lamp unit 71 functions as the O-ring 51 with respect to the reflecting mirror unit 5. Combined with waterproof.

FIG. 7 shows an HID lighting device 100 defined by JIL 5004-2012 lighting equipment for public facilities (published by the Japan Lighting Industry Association).
The lighting equipment for public facilities is a common specification established by the Japan Lighting Industry Association's Standard Committee for Public Lighting Equipment for Public Facilities. Therefore, it is useful when selecting a device suitable for the facility where the device is installed.
In the case of the HID lighting fixture 100 of the size specified here, when the LED light source unit 10 is mounted instead of the HID lamp unit 71, the performance of the COB type LED 17 is not deteriorated by the heat that flows inside the reflecting mirror 4. It has been found that waterproofness can be secured.
In this HID lighting fixture 100, the total length a, the width b of the irradiation opening 3 at the tip of the reflecting mirror 4, the height c from the lower end of the arm 9 to the center of the HID lamp 2, the rotation center at the upper end of the arm 9 and the lower end of the arm 9 It is set as the distance d with a bolt hole position.
The application of this embodiment is that the total length a is 380 to 470 mm, the width b is 350 to 440 mm, the height c is 250 to 360 mm, and the height d is 180 to 275 mm. Alternatively, it is suitable for the HID lighting apparatus 100 having a total length a of 490 to 600 mm, a width b of 510 to 590 mm, a height c of 290 to 420 mm, and a distance d of 180 to 325 mm. is there.

In the present embodiment, when the LED light source unit 10 is attached to the reflecting mirror unit 5 of the LED lighting apparatus 1, the attachment flange 7 and the companion flange 13 are joined, and the stopper 52 and the engagement piece 57 are joined. The LED light source unit 10 can be coupled to the reflecting mirror unit 5 in a waterproof state together with the function of the O-ring 51.
Further, when the HID lamp unit 71 is attached to the reflecting mirror unit 5 of the HID lighting apparatus 100, the attachment flange 7 and the companion flange 113 are joined, and the stopper 52 and the locking piece 157 are connected. Thus, the HID lamp unit 71 can be coupled to the reflecting mirror unit 5 in a waterproof state together with the function of the O-ring 51.

Therefore, for example, in a site where a large space is illuminated with a large number of HID lighting fixtures 100, when one or two of the HID lighting fixtures 100 are out of lamps, the overall lighting design is not destroyed. Only the HID lamp unit 71 whose lamp has run out can be sequentially replaced with the LED light source unit 10.
Since it is possible to replace the HID lamp unit 71 with the LED light source unit 10 in order according to the field situation, energy saving is achieved while maintaining the overall lighting design while reducing the economic burden. it can.

  As mentioned above, although this invention was demonstrated based on one Embodiment, this invention is not limited to this. In the reflecting mirror unit 5, the mounting flange 7 having the stoppers 52 that are equally divided into three in the circumferential direction has been described, but the configuration of the stoppers is not limited thereto. For example, a stopper such as a snap lock (snap and fastener type) may be used.

1 LED lighting fixture 2 Front glass (light transmission member)
4 Reflecting mirror 5 Reflecting mirror unit 7 Mounting flange 10 LED light source unit 11, 113 Companion flange 17 COB type LED
71 HID lamp unit 72 HID lamp 100 HID lighting fixture

Claims (10)

An LED having a light transmitting member disposed at the front end and a reflector unit to which an HID lamp unit can be attached at the rear end, and an LED as a light source instead of the HID lamp unit at the rear end of the reflector unit A light source unit can be attached, and the LED light source unit includes an LED light source reflector that controls light distribution of the LED without causing the reflector of the reflector unit to control light distribution , and the LED A protective cover is disposed in the front opening of the light source reflector, and the protective cover is provided with a vent hole that is an arc-shaped elongated hole. The vent hole is irradiated with transmitted light from a portion where the vent hole is present and a portion where the vent hole is not present. An illuminator characterized by being arranged so as to suppress uneven illumination on a surface and having a size that does not allow fingers to enter .   The HID lighting fixture in which the HID lamp unit is attached to a rear end portion of the reflecting mirror unit is a HID lighting fixture defined in JIL 5004-2012 lighting fixture for public facilities. Lighting fixtures.   The lighting apparatus according to claim 1, wherein the light transmission member is arranged in a waterproof state on the reflecting mirror unit, and the HID lamp unit can be attached in a waterproof state.   The mounting flange is provided at the rear end portion of the reflecting mirror unit, and the LED light source unit is provided with a phase flange that is in a waterproof state via a seal member. Lighting fixtures.   The said LED light source unit is insulated between the LED light source and the phase flange, The lighting fixture as described in any one of Claim 1 thru | or 4 characterized by the above-mentioned.   6. The vent according to claim 1, wherein the ventilation holes are concentrically arranged in the protective cover, and are arranged at equal intervals in an annular shape outward from the center of the protective cover. The luminaire described.   An LED light source unit including an LED as a light source, wherein a light transmitting member is disposed at a front end portion, and a HID lamp unit can be attached to a rear end portion via a mounting flange. Instead, it includes a phase flange corresponding to the mounting flange, and an LED light source reflecting mirror that controls the light distribution of the LED without causing the reflecting mirror of the reflecting mirror unit to control the light distribution. A protective cover is disposed in the front opening of the LED light source reflecting mirror, and the protective cover is provided with a vent hole that is an arc-shaped elongated hole. The vent hole is transmitted from a place where the vent hole is present and a place where there is no vent hole. An LED light source unit, which is arranged so as to suppress unevenness in illuminance on a light-irradiated surface and has a size that does not allow fingers to enter. The LED light source unit according to claim 7, wherein the light transmission member is disposed in a waterproof state on the reflecting mirror unit, and the HID lamp unit can be mounted in a waterproof state . 9. The LED light source unit according to claim 7, wherein the LED light source unit has a heat radiating fin, and a resin cover having a vent hole in a direction perpendicular to the heat radiating fin . 10. The vent holes are concentrically arranged in the protective cover, the vent holes are formed as arc-shaped long holes, and are arranged annularly at equal intervals outward from the center of the protective cover. The LED light source unit according to any one of claims 7 to 9 .

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