CN103512016A - Lighting device - Google Patents
Lighting device Download PDFInfo
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- CN103512016A CN103512016A CN201310242509.2A CN201310242509A CN103512016A CN 103512016 A CN103512016 A CN 103512016A CN 201310242509 A CN201310242509 A CN 201310242509A CN 103512016 A CN103512016 A CN 103512016A
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- main body
- radiator
- lighting device
- light source
- heat sink
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- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
Abstract
The invention aims to provide a lighting device which improves radiating performance and can inhibit low light emitting efficiency. The lighting device in the invention has a main body and a light source, the abovementioned light source has a radiator at an upper part, and has an LED at a lower part, the abovementioned light source and the abovementioned main body are mounted in a manner that the abovementioned radiator is exposed from an upper end of the abovementioned main body, the lighting device is characterized in that a barrel-shaped component having openings at upper and lower ends and covering the periphery of the abovementioned radiator is arranged, and a gap is arranged between a lower end of the component and an upper end of the main body.
Description
Technical field
The present invention relates to lighting device.
Background technology
Now, in various products, all carrying out energy-saving motion.Follow energy-saving motion, in illumination industry, the good and energy-conservation LED of the luminous efficiency of usining is as the upswing in demand of the utensil of light source.In home-use illumination, from incandescent lamp to LED lamp, change.
In the past in the illumination of ， factory etc., use longer than the electric light life-span, the mercury vapor lamp that can irradiate brightly.Yet, because the LED lighting device life-span is longer than mercury vapor lamp, can brightly irradiate the same with mercury vapor lamp, startability is better than mercury vapor lamp, compares and can reduce power consumption, so also expect to using the utensil of LED as light source in the illumination of ， factory etc. with mercury vapor lamp.
But known LED is along with temperature rises, luminous efficiency reduces, and the lost of life, the heat being produced must be discharged to outside by LED.
For example, in non-patent literature 1, the utensil of mercury vapor lamp utensil instead, has recorded and has usingd the high ceiling ceiling of LED as light source.Owing to usining LED as light source, so the life-span is long, and has played and can irradiate fully brightly, and can reduce the effect of power consumption.In addition, the high ceiling of recording in non-patent literature 1 is provided with radiator with the ceiling LED back side, by increasing the part contacting with air, the heat of LED is discharged to outside.
Prior art document
Non-patent literature
Non-patent literature 1: Mitsubishi Electric Corporation, high ceiling ceiling, the catalogue ，“ LED of Mitsubishi illumination LED NEXT STAGE2012 ", complete in March, 2012.
Summary of the invention
The object of the present invention is to provide than the high ceiling of recording in non-patent literature 1 and improved thermal diffusivity and can suppress the lighting device that luminous efficiency is low with ceiling.
A kind of lighting device, possess main body and light source, above-mentioned light source has radiator on top, in bottom, there is LED, the mode that above-mentioned light source and aforementioned body are exposed from the upper end of aforementioned body with above-mentioned radiator is installed, it is characterized in that having and cover the surrounding of above-mentioned radiator and at the parts up and down with the tubular of opening, between the lower end of these parts and the upper end of this main body, there is space.
Effect of the present invention is as follows.
According to the present invention, lighting device possesses main body and light source, above-mentioned light source has radiator on top, in bottom, have LED, the mode that above-mentioned light source and aforementioned body are exposed from the upper end of aforementioned body with above-mentioned radiator is installed, and it is characterized in that, have and cover the surrounding of above-mentioned radiator and at the parts up and down with the tubular of opening, between the lower end of these parts and the upper end of this main body, there is space, thus, can provide and improved thermal diffusivity and can suppress the lighting device that luminous efficiency is low.
Accompanying drawing explanation
Fig. 1 is the side view of lighting device.
Fig. 2 is the overall perspective view of the lighting device while observing from floor direction.
Fig. 3 is the overall perspective view of the lighting device while observing from ceiling direction.
Fig. 4 is the cutaway view of lighting device.
Fig. 5 is near enlargement decomposition heat sink.
Fig. 6 is the exploded view of lighting device.
In figure: 1-support, 1a-smallpox board, 1b-cradle portion, 2-upper plate, 3,4-lamp circuit, 5-lower plate, 6-heat sink, 6a-heat sink bottom, 6b-heat sink top, 7-heat sink support component, 8-radiator, 9-insulating trip, 10-LED, 11-LED engaging plate, 12-wire support member, 13-main body base plate, 14-reflecting drum, 15-cartridge unit, 16-main body side plate, 17-diffuser, 18-diffuser engaging parts, 19-light source, 20-ignition device, 21-main body, 100-lighting device.The specific embodiment
The invention is characterized in following structure.Lighting device 100 possesses main body 21 and light source 19, above-mentioned light source 19 top has radiator 8, in bottom, there is LED, the mode that above-mentioned light source 19 and aforementioned body 21 are exposed from aforementioned body 21 upper end with above-mentioned radiator 8 is installed, it is characterized in that, have and cover the surrounding of above-mentioned radiator 8 and at the parts up and down with the tubular of opening, between the lower end of these parts and this main body 21 upper end, there is space.
Except said structure, it is characterized in that, above-mentioned light source 19 is provided with more than two in aforementioned body 21, and above-mentioned parts cover above-mentioned plural radiator 8 around.
Below, use the Fig. 1 to Fig. 6 enclosing to describe the structure of the lighting device 100 of embodiments of the invention.In addition, the convenience of the explanation from embodiment, using not shown ceiling side as upside, using floor side as downside.This lighting device 100 is arranged on building, is mainly on the ceiling surface of inside of factory, by being connected to be connected with external power source with the house service utensil being arranged on building, and is fixed on assigned position and uses.
Fig. 1 is the side view of lighting device 100.To describe in detail below, lighting device 100 has support 1, ignition device 20, heat sink 6, heat sink support component 7, light source 19 and main body 21.Fig. 2 observes the overall perspective view of the lighting device 100 while being arranged on the lighting device 100 not shown ceiling surface from floor direction.Fig. 3 is the overall perspective view of the lighting device 100 while observing lighting device 100 from ceiling direction.Fig. 4 is the cutaway view of lighting device 100.Fig. 5 is near the enlarged drawing heat sink 6 in Fig. 4.Fig. 6 is the exploded perspective view of lighting device 100.
As shown in Fig. 1, Fig. 4, Fig. 6, support 1 is to observe from the side the parts that form concave shape.As long as can support the weight of lighting device 100 integral body by support 1, thickness and length are not stipulated.In order to support the weight of lighting device 100 integral body, support 1 is preferably forming by resistance to heavy material.Support 1 comprises tabular smallpox board 1a and the tabular cradle portion 1b generally perpendicularly arranging from smallpox board 1a both ends.In lighting device 100, only have the smallpox board 1a of support 1 to contact with ceiling (building).When the heat of sending from lighting device 100 is transmitted to building, by support 1, carry out heat conduction.Therefore, support 1 preferably forms with the good material of thermal conductivity.With regard to thermal conductivity good and can resistance to heavy material with regard to, support 1 preferably forms with materials such as iron.
As shown in Figure 6, ignition device 20 has upper plate 2, lamp circuit 3,4 and lower plate 5.The outward appearance of ignition device 20 is rectangular shape roughly.Upper plate 2 is to observe from the side the parts that form concave shape, has rectangular board A and is vertically arranged on the board B of two short brinks of board A.Lower plate 5 is also the parts that form concave shape, has rectangular board C and is vertically arranged on the board D of two long sides of board C.Upper plate 2 is connected with lower plate 5 and forms roughly rectangular shape.Yet, so long as can take in the shape of lamp circuit 4 in inside, be not limited to this.
As shown in Fig. 2, Fig. 3, Fig. 6, on heat sink 6 Wei Liang bottom surfaces, there is the general cylindrical shape shape of opening.In addition, heat sink 6 comprises heat sink bottom 6a and heat sink top 6b.The general cylindrical shape shape on 6aWei Liang bottom surface, heat sink bottom with opening.Heat sink top has opening on 6bYe Liang bottom surface, but the barrel shape of its roughly frustum of a cone that to be the area of Area Ratio upper surface open of lower surface opening large.The lower surface open communication of the upper surface open of heat sink bottom 6a and heat sink top 6b.As long as the area of the lower surface opening of heat sink 6, larger than the area that is provided with radiator 8 described later, has the size that can cover the radiator 8 arranging.
As shown in Figure 6, heat sink support component 7 is the parts that are L word shape that consist of heat sink 6 support portions and main body fixed part.Played heat sink 6 be fixed in main body 21, and at the upper surface from main body 21 to the effect that space is set the lower surface of heat sink 6.As long as can function as described above and be not limited to L word shape.In addition, about material too, so long as can support the material of the weight of heat sink 6.
As shown in Figure 6, light source 19 comprises radiator 8, insulating trip 9, LED10 and LED engaging plate 11.Radiator 8 consists of flat part and the jog that is arranged in the one side of flat part.Lug boss in jog is for roughly tabular, and a plurality of lug bosses are outstanding from flat part in substantially vertical mode.Because the setting party of lug boss is to identical, so depressed part is also towards identical direction.On the another side of flat part, be provided with LED10.LED10 is connected by insulating trip 9 with radiator 8, and LED10 is fixed on radiator 8 by LED engaging plate 11.LED10 consists of substrate and the light-emitting component being positioned on substrate.The heat being produced by light-emitting component is transmitted to radiator 8 by substrate and insulating trip 9.The heat that is delivered to radiator 8 is contacted, dispels the heat with extraneous air by the jog of radiator 8.As long as can play from the effect of radiator 8 heat radiations, be not limited to this shape.From this effect, radiator 8 preferably forms with the good material of thermal diffusivity.In addition, owing to also there being the relation of overall weight, so preferably form with the material of trying one's best light.Therefore, radiator 8 preferably forms with materials such as aluminium.
As shown in Figure 6, main body 21 comprises wire support member 12, main body base plate, reflecting drum 14, cartridge unit 15, main body side plate 16, diffuser 17 and diffuser engaging parts 18.Wire support member 12 consists of main body base plate 13 and body supports portion.Main body base plate 13 is roughly tabular parts.In main body base plate 13, be provided with the peristome for mounting cylinder parts 15.Be provided with the peristome of the quantity of light source 19.Body supports portion is generally perpendicularly arranged on the tabular part of this main body base plate 13 end from this main body base plate 13.In the present embodiment, body supports portion is provided with two to equate with cradle portion 1b quantity.Reflecting drum 14 is parts of the general cylindrical shape shape that expands gradually towards lower surface sectional area from upper surface.In addition, the inner surface of reflecting drum 14 is specular, and reflection is from the light of light source 19 and by its (floor direction) guiding downwards.Cartridge unit 15 is the parts of general cylindrical shape shape.About equally, having can be by reflecting drum 14 engagings to inner shape for the external diameter of the internal diameter of cartridge unit 15 and reflecting drum 14.In inside, have on the basis of reflecting drum 14, cartridge unit 15 is connected with main body base plate 13.Connecting cylinder parts 15 position is that the peristome of main body base plate 13 is in the face of the position of the opening of cartridge unit 15.The parts of the roughly tubular of main body side plate 16Wei Liang bottom surface opening.In the present embodiment, the aperture area of main body side plate 16 has the size roughly the same with main body base plate 13.But with regard to the aperture area of main body side plate 16, as long as there is the size that can cover a plurality of cartridge units 15.Diffuser 17 is roughly tabular light transparent member.With regard to the area of diffuser 17, as long as there is the size that is suitable for a plurality of cartridge units 15.As the material of diffuser 17, glass, plastics etc. are so long as the material of light transmission.Diffuser engaging parts 18 are clamped in middle by diffuser 17 and are fixed on main body side plate 16.
As shown in Figures 1 to 4, ignition device 20 is connected on the cradle portion 1b of support 1.In the present embodiment, ignition device 20 is made as rectangular shape, and the board B of short brink is connected with cradle portion 1b.By connecting ignition device 20 and support 1, the heat from lamp circuit 4 can be delivered to cradle portion 1b by upper plate 2 and lower plate 5.
As shown in Figures 1 to 5, the body supports portion of the cradle portion 1b of support 1 and wire support member 12 is connected by screw.Be thus connected main body 21 and support 1.In the present embodiment, while observing from cradle portion 1b side, the smallpox board 1a of support 1 is connected with the mode of the main body bottom surface sections of wire support member 12 with almost parallel.
As shown in Figures 1 to 5, light source 19 with main body 21 by by radiator 8 screw thread engagings, the main body bottom surface sections to wire support member 12 is connected.When connecting light source 19 and main body 21, to see that from the peristome of wire support member the mode that LED and radiator 8 are positioned at main body 21 top connects.
As shown in Figures 1 to 5, heat sink 6 and main body 21 are fixed by heat sink support component 7.The 7 screw thread engagings of heat sink support component are at the inner surface of heat sink 6.Thus, exist the utensil of parts to compare with the periphery at heat sink 6, apparent design improves.Heat sink support component 7 and main body 21 are by fixing the 7 screw thread engagings of heat sink support component to the main body bottom surface sections of wire support member 12.As mentioned above, heat sink support component 7 has played at the upper surface from main body 21 to the effect that a little space is set the lower surface of heat sink 6.Be configured to, the Length Ratio of heat sink 6 support portions of heat sink support component 7 is long to the length of the lower surface of heat sink 6 with the engaging portion of heat sink 6 support portions from the heat sink 6 of heat sink 6 for this reason.While observing from the side, for seeing the structure of the jog of radiator 8.
Here, in lighting device 100, the part that temperature is the highest is radiator 8.Therefore,, by carrying out heat radiation or the heat conduction of radiator 8, can reduce the temperature of lighting device 100 integral body.Heat has dependency relation with efficiency, low by reducing the enough suppression efficiencies of heat energy.
By between heat sink 6 and main body 21, space being set as described above, heat sink 6 is set as to general cylindrical shape shape, produced stack effect.By the warm hot air of the heat radiation from radiator 8, in the interior rising of heat sink 6, in the bottom of heat sink 6, negative pressure is had an effect, and main body 21 fluid around flows into.Like this, can cause thermal convection current.By thermal convection current, can cooling radiator 8 ambient airs, promote around cooling of radiator 8.
As shown in Figure 3, in the present embodiment, light source 19 with the setting party towards the lug boss with jog of the plate of main body 21 support portions of support 1 to become identical towards mode be arranged in main body 21.In the present embodiment, three light sources 19 are installed, all with identical towards being arranged in main body 21.
In addition, although in the present embodiment, the mode vertical with respect to support 1 with main body 21 upper surfaces arranges, and is not limited to this.The mode that also can have vertical angle in addition with respect to support 1 with main body 21 upper surfaces arranges.For example, the mode as 60 degree arranges with respect to support 1 to take main body 21 upper surfaces.By such setting, can make the direction of illumination of light source 19 also with respect to ceiling surface inclination 60 degree of support 1, can access desirable angle.
In addition, in the present embodiment, even be arranged in the part that tilts with respect to ceiling, also can make light source 19 towards under.
In addition, due to the setting party towards the lug boss with jog of the plate of the body supports portion with support 1 to become identical towards mode arrange, therefore when making main body 21 upper surfaces tilt with respect to support 1, played and made air easily by the depressed part in jog, further promoted the cooling effect of radiator 8.
Claims (2)
1. a lighting device, possesses main body and light source, and above-mentioned light source has radiator ， bottom and has LED on top, and the mode that above-mentioned light source and aforementioned body are exposed from the upper end of aforementioned body with above-mentioned radiator is installed, and this lighting device is characterised in that,
Have and cover the surrounding of above-mentioned radiator and at the parts up and down with the tubular of opening,
Between the lower end of these parts and the upper end of this main body, there is space.
2. lighting device according to claim 1, is characterized in that,
Above-mentioned light source is provided with more than two in aforementioned body,
Above-mentioned parts cover above-mentioned plural radiator around.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012137409A JP5789565B2 (en) | 2012-06-19 | 2012-06-19 | Lighting device |
| JP2012-137409 | 2012-06-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103512016A true CN103512016A (en) | 2014-01-15 |
| CN103512016B CN103512016B (en) | 2016-03-30 |
Family
ID=49895161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310242509.2A Expired - Fee Related CN103512016B (en) | 2012-06-19 | 2013-06-19 | Lighting device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5789565B2 (en) |
| CN (1) | CN103512016B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6919452B2 (en) * | 2017-09-22 | 2021-08-18 | 東芝ライテック株式会社 | lighting equipment |
| JP7294400B2 (en) * | 2017-12-11 | 2023-06-20 | 東芝ライテック株式会社 | lighting equipment |
| JP7007643B2 (en) * | 2017-12-11 | 2022-02-10 | 東芝ライテック株式会社 | lighting equipment |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4945433B2 (en) * | 2007-12-28 | 2012-06-06 | シャープ株式会社 | Lighting device |
| US20090296387A1 (en) * | 2008-05-27 | 2009-12-03 | Sea Gull Lighting Products, Llc | Led retrofit light engine |
| US8240884B2 (en) * | 2009-02-10 | 2012-08-14 | Gao-Shan Chen | Module structure of the LED lights and radiator |
| CN101858505B (en) * | 2009-04-13 | 2013-04-24 | 富准精密工业(深圳)有限公司 | Light-emitting diode (LED) lamp |
| CN202229142U (en) * | 2011-09-30 | 2012-05-23 | 湖北云川光电科技有限公司 | Radiator of LED (Light-emitting Diode) Lamp |
-
2012
- 2012-06-19 JP JP2012137409A patent/JP5789565B2/en not_active Expired - Fee Related
-
2013
- 2013-06-19 CN CN201310242509.2A patent/CN103512016B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP5789565B2 (en) | 2015-10-07 |
| JP2014002916A (en) | 2014-01-09 |
| CN103512016B (en) | 2016-03-30 |
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Address after: Tokyo, Japan Patentee after: Hitachi Global Living Program Co.,Ltd. Address before: Tokyo, Japan Patentee before: Hitachi Appliances, Inc. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160330 |
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| CF01 | Termination of patent right due to non-payment of annual fee |