CN202813146U

CN202813146U - Illumination device

Info

Publication number: CN202813146U
Application number: CN2012204537657U
Authority: CN
Inventors: 古闲隆一; 户田雅宏; 高桥浩司
Original assignee: Toshiba Lighting and Technology Corp
Current assignee: Toshiba Lighting and Technology Corp
Priority date: 2011-12-15
Filing date: 2012-09-06
Publication date: 2013-03-20
Anticipated expiration: 2022-09-06
Also published as: JP5967346B2; JP2013125674A

Abstract

The utility model provides an illumination device of a broadcasting-burning-prevention structure capable of carrying out light-on control corresponding to peripheral brightness. The illumination device (10) comprises a metal framework (15), wherein a lighting hole (32) is arranged on the upper surface side of the metal framework (15), and an opening is formed on the lower side of the metal framework (15). A light transmission component (36) is used for blocking the lighting hole (32) of the metal framework (15). A metal installation plate (17) is used for covering the opening on the lower side of the framework (15), and a storage space (16) is formed between the framework (15) and the installation plate (16). A light emitting diode element is arranged on the lower side of the installation plate (17). A brightness sensor (60) and a light-on circuit (56) are arranged inside the storage space (16), the brightness sensor (60) detects the incident light from the lighting hole (32) through the light transmission component (36), and the light-on circuit (56) lights on the light emitting diode element according to the detection of the brightness sensor (60).

Description

Lighting device

Technical field

Embodiment of the present utility model relates to a kind of lighting device that comprises illuminance transducer (sensor).

Background technology

In the past, for example using light emitting diode (Light Emitting Diode, LED) in the lighting device such as the security lamp of the light source such as element or street lamp, there is following structure, that is, with illuminance transducer and lamp circuit in light source is housed in resinous light transmission outer cover (cover).In this lighting device, by the light transmission outer cover, utilize illuminance transducer to come lightness is on every side detected, then make light source automatically light a lamp, turn off the light according to detected lightness.

The prior art document

Patent documentation

Patent documentation 1 Japanese Patent Laid-Open 2011-34856 communique

Yet in order can to come lightness is on every side detected by illuminance transducer, lighting device in the past be following structure, namely, utilize resinous light transmission outer cover that illuminance transducer and lamp circuit are covered with light source, therefore, exist and do not adopt the anti-problem of burning structure of prolonging.

The utility model content

Problem to be solved in the utility model is to provide the anti-lighting device that burns structure that prolongs that can carry out the light a lamp control corresponding with lightness on every side.

The lighting device of embodiment comprises metal framework, and this metal framework comprises lightlng hole in upper surface side, and downside forms opening.Utilize transmissive member to stop up the lightlng hole of framework.Utilize metal installing plate that the opening of the downside of framework is covered, between framework and installing plate, form receiving space.Light source is configured in the downside of installing plate.In receiving space, dispose illuminance transducer, and the collocation point circuit for lamp, described illuminance transducer detects the outer light of injecting by transmissive member from lightlng hole, and described lamp circuit lights a lamp light source based on the detection of illuminance transducer.

Described lighting device wherein, is provided with planar portions in the upper surface side of described framework, and is provided with described lightlng hole in this planar portions.

Described lighting device, wherein, described lamp circuit comprises substrate and is installed on the electric parts of this substrate, described illuminance transducer be installed on the described substrate of described lamp circuit and with described lightlng hole position in opposite directions.

The effect of utility model

According to the utility model, illuminance transducer and lamp circuit are contained in receiving space, this receiving space is formed between the metal framework and metal installing plate that is provided with lightlng hole, therefore, can expect to provide the following anti-lighting device that burns structure that prolongs, this anti-lighting device that burns structure that prolongs can carry out the light a lamp control corresponding with lightness on every side.

Description of drawings

Fig. 1 is the profile of the lighting device of expression the first embodiment.

Fig. 2 is the profile of described lighting device.

Fig. 3 is the stereogram of the decomposing state of described lighting device.

Fig. 4 (a)～Fig. 4 (c) has represented the shape of lightlng hole of framework of the lighting device of the second embodiment, Fig. 4 (a) is the profile of the lightlng hole of the second embodiment, and Fig. 4 (b), Fig. 4 (c) are the profiles of the comparative example of expression lightlng hole.

Reference numeral:

10: lighting device

11: lamp body

12,27: installation portion

15: framework

16: receiving space

17: installing plate

17a: notch part

18: light source cell

19: the light transmission outer cover

20: lighting unit

21: cable

22: wiring hole

23: axle bush

24: installation fitting

28: groove

29,35: liner

30,34,39,40: axle sleeve

31: planar portions

32: lightlng hole

33: projection

35a: inserting hole

36: transmissive member

37: the transmittance section

38: foot is installed

42: light emitting module

43: lens module

44: substrate

45: as the LED element of light source

46: connector

47: board

48: lens section

51: contact site

54: gripper shoe

55: distance piece

56: lamp circuit

57: substrate

58: electric parts

60: illuminance transducer

The specific embodiment

Below, come the first embodiment is described referring to figs. 1 through Fig. 3.

Among the figure, lighting device 10 is to be installed on the security lamp of electric pole or lamp stand (pole) etc. or street lamp etc.This lighting device 10 comprises: lamp body 11 and this lamp body 11 is installed on the installation portion 12 of electric pole or lamp stand etc.

Lamp body 11 comprises: framework 15; Installing plate 17 is covered the lower surface of described framework 15, and and framework 15 between form receiving space 16; Light source cell (unit) 18 is configured in the lower face side of described installing plate 17; Light transmission outer cover 19 is covered described light source cell 18; And lighting unit 20, be contained in receiving space 16.

In addition, framework 15 is such as being the metal-mades such as aluminium, lower face side forms opening, formed installation portion 12 at base end side, and form following shape, that is, the length of the framework length direction from described base end side to opposite front is long, lacks with the length of the framework width of framework length direction quadrature.

Be formed with the installation portion 27 of ring-type in the inboard of the lower surface periphery of framework 15, the installation portion 27 of this ring-type is mounted with the periphery of installing plate 17 with coming in contact, and is formed with the groove 28 of ring-type around described installation portion 27.

Dispose the liner 29 of ring-type in described groove 28, the liner 29 of this ring-type is between described groove 28 and light transmission outer cover 19.And, being formed with axle sleeve (boss) 30 in four corners of the lower surface periphery of framework 15, this axle sleeve 30 is solid in order to light transmission outer cover 19 is carried out spiral shell.

At the middle section of framework 15 upper surfaces, be formed with the lower surface periphery of framework 15 and installation portion 27 and be parallel planar portions 31.Lower surface periphery from the periphery of this planar portions 31 to framework 15 forms crooked shape.

The position of the front of the deflection framework 15 in planar portions 31 is formed with circular lightlng hole 32, and this circular lightlng hole 32 is centered by the axle vertical with planar portions 31.The inner peripheral surface of this lightlng hole 32 is formed at the face vertical with planar portions 31.On the inner surface of planar portions 31, with respect to lightlng hole 32 and side-prominently be provided with a pair of projection 33 at two of framework width, and with respect to lightlng hole 32 and side-prominently be provided with a pair of axle sleeve 34 at two of framework length direction.

Transmissive member 36 is embedded in this lightlng hole 32 from the inboard of lightlng hole 32 across the liner 35 of ring-type, and lightlng hole 32 is stopped up.Liner 35 comprises that projection 33 inserts logical a pair of inserting hole 35a, inserts under the states that lead in inserting hole 35a in projection 33, and described liner 35 location remain in framework 15.

Transmissive member 36 is to be formed by the synthetic resin with light transmission or glass, and comprises: the transmittance section 37 of cup-shaped is embedded in lightlng hole 32 across liner 35; And a pair of installation foot 38, be fixed at the axle sleeve 34 of framework 15.It is to be inserted logical mode and to be formed forked by axle sleeve 34 that foot 38 is installed.

On the peripheral wall surfaces of framework 15 inboards, form in order to installing plate 17 is carried out the solid a plurality of axle sleeves 39 of spiral shell.And, from the upper wall surface of framework 15 inboards, form in order to lighting unit 20 is carried out the solid a plurality of axle sleeves 40 of spiral shell.

Base end side in framework 15 is formed with by cable (cable) 21 slotting logical wiring holes 22, and described cable 21 is supplied to lighting unit 20 with power supply.Cable 21 is inserted and is led in wiring hole 22, and is embedded in described wiring hole 22 in order to the axle bush (bushing) 23 that wiring hole 22 is stopped up, and this axle bush 23 is fixed at framework 15 by installation fitting 24.

In addition, installing plate 17 is such as being the metal-made such as aluminium, the lower surface opening of framework 15 is stopped up, and it is tabular to form the rectangle of the installation portion 27 that can be connected to framework 15.Be connected at the periphery of installing plate 17 under the state of installation portion 27 of framework 15, this installing plate 17 is fixed at a plurality of axle sleeves 39, and is crimped on the installation portion 27 of framework 15.Between the inside and installing plate 17 of framework 15, be formed with the receiving space 16 of obstruction.Part at installing plate 17 is formed with the notch part 17a that distribution is used.

In addition, light source cell 18 comprises light emitting module 42 and lens module (lens module) 43.

Light emitting module 42 for example on metal substrate 44, be formed with Wiring pattern across insulating barrier, and on this Wiring pattern, a plurality of semiconductor light-emitting elements that are equipped with as light source is LED element 45 and connector (connector) 46.The mounting means of LED element 45 can be surface mount device (Surface Mount Device, SMD) mode, and plate carry any mode in chip (Chip On Board, the COB) mode.Moreover, also can use electroluminescent (Electro Luminescence, EL) element etc. as semiconductor light-emitting elements.

Lens module 43 is for example formed by the synthetic resin with light transmission or glass, and comprises: flat board 47, and a plurality of lens sections 48 of forming corresponding to the position of each LED element 45.The light that lens section 48 produces LED element 45 shines to the luminous intensity distribution direction of regulation.

And, light emitting module 42 being sandwiched under the state between installing plate 17 and the lens module 43, lens module 43 and light emitting module 42 are fixed at installing plate 17, and the substrate 44 of light emitting module 42 is crimped on the lower surface of installing plate 17.

In addition, light transmission outer cover 19 is for example formed by the synthetic resin with light transmission or glass, and is formed with the contact site 51 of ring-type at periphery, and the contact site 51 of this ring-type enters to the groove 28 of framework 15 and comes in contact with liner 29.And four corners of light transmission outer cover 19 are fixed at the axle sleeve 30 of framework 15, and contact site 51 is crimped on liner 29 between the groove 28 of described light transmission outer cover 19 and framework 15.

In addition, lighting unit 20 comprises: have the gripper shoe 54 of insulating properties, be fixed at the axle sleeve 40 of framework 15; And lamp circuit 56, be supported in described gripper shoe 54 across a plurality of distance pieces (spacer) 55 with insulating properties.

Lamp circuit 56 comprises: substrate 57 and be installed in a plurality of electric parts 58 on this substrate 57.Substrate 57 is printed wiring board, the upper surface of this substrate 57 forms installed surface, this installed surface is installed with the electric parts 58 that comprises wire, and the lower surface of this substrate 57 forms the Wiring pattern face, and this Wiring pattern face forms by welding and with electric parts 58 and is electrically connected.And substrate 57 remains in gripper shoe 54 across distance piece 55, and by described gripper shoe 54 and distance piece 55 with insulating properties, substrate 57 is to be supported with the state of metal framework 15 insulation.

Therefore, lamp circuit 56 is so that the state that substrate 57 and electric parts 58 expose is contained in receiving space 16, and to separate the state of the insulation distance of regulation with framework 15 and installing plate 17, is contained in receiving space 16.

On substrate 57, in lightlng hole 32 position in opposite directions with framework 15 illuminance transducer 60 is installed.This illuminance transducer 60 is so that the center of the luminance detection face of this illuminance transducer 60 mode consistent with the center of lightlng hole 32, with lightlng hole 32 in opposite directions, and be electrically connected at the circuit pattern of substrate 57, that is, be connected in lamp circuit 56.

Cable 21 is connected in the power supply input side of lamp circuit 56, and the distribution of not shown subsidiary connector that is connected in the outlet side of lamp circuit 56 is the notch part 17a by installing plate 17, is connected in the connector 46 of light emitting module 42.

The lighting device 10 that consists of in this way is by installation portion 12 and the installation fitting that uses in addition, is installed on such as the set electric pole in roadside or lamp stand etc.Under the installment state of lighting device 10, the front of lamp body 11 tilts obliquely upward, and the central side of light source cell 18 and light transmission outer cover 19 and road in opposite directions.

And in lighting device 10, the lightlng hole 32 of the upper surface of outer light by being arranged at framework 15 and the transmissive member 36 that this lightlng hole 32 is stopped up are incident upon in the framework 15, utilize illuminance transducer 60 to come lightness is detected.

Lamp circuit 56 can be lower than a reference value because of the lightness that illuminance transducer 60 detects lights a lamp LED element 45, on the other hand, can be higher than because of the lightness that illuminance transducer 60 detects a reference value LED element 45 is turned off the light.

The heat that LED element 45 produces when lighting a lamp conducts to installing plate 17 from substrate 44, and conducts to framework 15 from installing plate 17, and then efficient is dispelled the heat well from framework 15 to atmosphere.

In addition, because lamp circuit 56 is contained in formed receiving space 16 between metal framework 15 and the metal installing plate 17, therefore, lighting device 10 can constitute anti-prolonging and burn structure.

Even use metal framework 15 in order to realize preventing prolonging the burning structure, because the upper surface in this framework 15 is provided with lightlng hole 32, and utilize transmissive member 36 that this lightlng hole 32 is stopped up, therefore, can utilize the illuminance transducer 60 that is disposed at receiving space 16 that lightness is on every side detected, thereby carry out the light a lamp control corresponding with lightness on every side.

The size of lightlng hole 32 is in following scope, and this scope is for more than the size that can utilize illuminance transducer 60 and come correctly the outer light of injecting from lightlng hole 32 is detected, and burns below the required size of structure for keeping anti-prolonging, for example preferred 100mm ²About.

In addition, in situation about lamp circuit 56 being configured in the framework 15, generally be that lamp circuit 56 is accommodated in the metallic casing, but in the present embodiment, do not use metallic casing, but under the state that substrate 57 and the electric parts 58 of lamp circuit 56 exposes, lamp circuit 56 is contained in receiving space 16, and separate at the substrate 57 of lamp circuit 56 and electric parts 58 and framework 15 and installing plate 17 under the state of insulation distance of regulation, lamp circuit 56 is accommodated in receiving space 16.So; owing to lamp circuit 56 is not used metallic casing; therefore; can make and comprise framework 15 in the 10 realization miniaturizations of interior lighting device; and owing between the substrate 57 of lamp circuit 56 and electric parts 58 and framework 15 and installing plate 17, guaranteed the insulation distance of stipulating; therefore, can protect lamp circuit 56 not to be subjected to the impact of lightning surge (lightning surge).

As mentioned above, the lighting device 10 of present embodiment is contained in receiving space 16 with illuminance transducer 60 and lamp circuit 56, this receiving space 16 is formed between the metal framework 15 and metal installing plate 17 that is provided with lightlng hole 32, therefore, can provide the anti-lighting device 10 that burns structure that prolongs that can carry out the light a lamp control corresponding with lightness on every side.

In addition, owing to the planar portions 31 that lightlng hole 32 is arranged at framework 15, therefore, for example compare with the situation that described lightlng hole 32 is arranged at the bend of framework 15, can guarantee desired daylighting, and lightlng hole 32 is diminished, and can keep anti-prolonging and burn structure.

In addition, since with illuminance transducer 60 be installed on the substrate 57 of lamp circuit 56 with lightlng hole 32 position in opposite directions, therefore, can easily illuminance transducer 60 be loaded in the lighting device 10, and can pass through light inlet window 32, utilize illuminance transducer 60 to come correctly lightness to be detected.

Then, come the second embodiment is described with reference to Fig. 4 (a)～Fig. 4 (c).

Shown in Fig. 4 (a), so that the mode that the area of the outer surface side of framework 15 becomes large and the area of inner surface side is diminished forms the lightlng hole 32 that is arranged at framework 15.That is, the inner peripheral surface of lightlng hole 32 forms cone shape inclined-plane, this cone shape inclined-plane take near the detection faces of illuminance transducer 60 or this detection faces as the summit.

And, Fig. 4 (b) and Fig. 4 (c) expression comparative example, Fig. 4 (b) is the vertical situation of inner peripheral surface of lightlng hole 32, outer light expose to easily illuminance transducer 60 around, in addition, Fig. 4 (c) is the situation that the inner peripheral surface of lightlng hole 32 has the direction incline direction opposite with Fig. 4 (a), and outer light exposes to illuminance transducer 60 easily on every side on a large scale.Therefore, contained ultraviolet ray can expose to substrate 57 or other electric parts 58 of lamp circuit 56 in the outer light, thereby produces easily the deteriorated impact of Denging.

Shown in Fig. 4 (a), the inner peripheral surface of lightlng hole 32 forms cone shape inclined-plane, this cone shape inclined-plane take near the detection faces of illuminance transducer 60 or this detection faces as the summit, therefore, outer light is concentrated on illuminance transducer 60 easily, and be difficult for exposing to illuminance transducer 60 around.Therefore, contained ultraviolet ray is difficult for exposing to substrate 57 or the electric parts 58 of lamp circuit 56 in the outer light, thereby can prevent the deteriorated of described member.

Moreover, in the situation of the shape of the lightlng hole 32 of present embodiment, as long as liner 35 and transmissive member 36 are embedded in the outer surface side of framework 15, lightlng hole 32 is stopped up get final product.

Some embodiments of the present utility model are illustrated, but these embodiments are the embodiments that are prompted as an example, and the intention that limits of the scope of unmatchful utility model.These embodiments can be implemented with other variety of ways, and in the scope of the aim that does not break away from utility model, can carry out various omissions, replacement and change.Described embodiment or its distortion are contained in scope or the aim of utility model, and are contained in utility model that claims the disclose scope impartial with it.

Claims

1. lighting device is characterized in that comprising:

Metal framework comprises lightlng hole in upper surface side, and downside forms opening;

Transmissive member is stopped up the described lightlng hole of described framework;

Metal installing plate is covered the described opening of described framework downside, and and described framework between form receiving space;

Light source is installed in the downside of described installing plate;

Illuminance transducer is contained in described receiving space, and the outer light of injecting by described transmissive member from described lightlng hole is detected; And

Lamp circuit is contained in described receiving space, and based on the detection of described illuminance transducer described light source is lit a lamp.

2. lighting device according to claim 1 is characterized in that:

Upper surface side in described framework is provided with planar portions, and is provided with described lightlng hole in this planar portions.

3. lighting device according to claim 1 and 2 is characterized in that:

Described lamp circuit comprises substrate and is installed on the electric parts of this substrate,

Described illuminance transducer be installed on the described substrate of described lamp circuit and with described lightlng hole position in opposite directions.