CN105090774A - Illumination device - Google Patents
Illumination device Download PDFInfo
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- CN105090774A CN105090774A CN201510176820.0A CN201510176820A CN105090774A CN 105090774 A CN105090774 A CN 105090774A CN 201510176820 A CN201510176820 A CN 201510176820A CN 105090774 A CN105090774 A CN 105090774A
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- light source
- source cell
- lighting device
- column direction
- light
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- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
An illumination device is provided with a plurality of light source units configured to be in the shape of a matrix. Each light source unit is provided with a rectangular flat-plate-like light-emitting part with a light-emitting face, and a heat-radiation part disposed on the opposite side of the light-emitting part. The number of the light source units configured in the row direction parallel to one edge of the light-emitting part is more than the number of the light source units configured in the column direction orthogonal to the row direction. The heat-radiation part is provided with a plurality of plate-shaped piece extending in the direction orthogonal to the light-emitting face. The plate-shaped pieces parallel to the column direction are arranged side by side.
Description
Technical field
The present invention relates to a kind of using the lighting device of light emitting diode (hereinafter referred to as LED) as light source.
Background technology
LED is owing to can carry out the luminescence of high brightness with lower electric power, and the life-span is longer, therefore alternatively incandescent lamp, fluorescent lamp light source and be concerned.As the lighting device taking LED as light source, known to lower lighting device, possess: the pedestal of rectangular flat shape; And multiple light source cell, in the vertical rectangular one side (for example, referring to Japanese Unexamined Patent Publication 2009-129859 publication) being configured at this pedestal of 3 × horizontal 3.Each light source cell has the LED being installed on pedestal across circuit board and the rectangular box-like Decorative Cover arranged in the mode of the surrounding surrounding this LED.Decorative Cover has the multiple fin (plate-like tile) arranged with base parallel at its lateral surface.
Summary of the invention
The invention provides the good lighting device of a kind of thermal diffusivity.Lighting device of the present invention has and is configured to rectangular multiple light source cells.Multiple light source cell has respectively: the illuminating part with the rectangular flat shape of light-emitting area; And radiating part, that be located at illuminating part with face that is light-emitting area opposite side.The quantity of the light source cell that the edge line direction parallel with one side of illuminating part configures is more than the quantity of the light source cell that the edge column direction orthogonal with line direction configures.Radiating part has the multiple plate-like tile extended along the direction orthogonal with light-emitting area.And multiple plate-like tile is parallel to column direction and is set up in parallel.
If arranged in the mode that column direction is consistent with vertical by the lighting device with this structure, then the quantity of light source cell that in the horizontal direction (line direction) configures is more than the quantity of the light source cell of vertical configuration.In addition, plate-like tile is parallel with vertical.Therefore, the thermal capacitance produced along with the luminescence of light source cell is easily along with ascending air is discharged above the vertical of lighting device.That is, thermal diffusivity improves.
Accompanying drawing explanation
Fig. 1 is the stereogram of the lighting device observing embodiments of the present invention from light-emitting area side.
Fig. 2 is the stereogram observing the lighting device shown in Fig. 1 from radiating part side.
Fig. 3 A is the plane observing the lighting device shown in Fig. 1 from the direction opposed with light-emitting area.
Fig. 3 B is the plane observing the lighting device shown in Fig. 1 from the direction opposed with radiating part.
Fig. 3 C is the side view of the lighting device shown in Fig. 1.
Fig. 4 A is the sectional view of the 4A-4A line of Fig. 3 B.
Fig. 4 B is the sectional view of the 4B-4B line of Fig. 3 B.
Fig. 5 A ~ Fig. 5 C is the figure of the flowing of the ambient air representing the lighting device shown in Fig. 1.
Fig. 6 A ~ Fig. 6 C is the figure of the flowing of the ambient air representing the lighting device not arranging gap between adjacent light source cell.
Detailed description of the invention
Before explanation embodiments of the present invention, the problem in existing lighting device is described.In above-mentioned that lighting device, if such as configured in the mode being parallel to vertical by seat surface, then the heat produced along with the luminescence of LED is difficult to discharge above the vertical of device.That is, thermal diffusivity reduces sometimes.If thermal diffusivity reduces, then there is the misoperation of lighting device that lighting device is heated excessively, causes thermal runaway to cause, the hidden danger of fault.
Below, reference accompanying drawing is while illustrate the lighting device of embodiments of the present invention.The lighting device of present embodiment such as can be used as the photophore to the projection light such as sports ground, field.
Fig. 1 is the stereogram of the lighting device observing present embodiment from light-emitting area side, and Fig. 2 is the stereogram observing the lighting device shown in Fig. 1 from radiating part side.Lighting device 1 has multiple light source cell 2 and keeps the holding frame 3 of multiple light source cell 2 integratedly.Multiple light source cell 2 has illuminating part 4 and the radiating part 5 of rectangular flat shape respectively.As shown in Figure 1, illuminating part 4 has light-emitting area 2A.Radiating part 5 is located at the face of the side contrary with light-emitting area 2A of illuminating part 4, and the heat luminescence along with illuminating part 4 produced externally is dispelled the heat.
Multiple light source cell 2 is configured to rectangular.The quantity of the light source cell 2 that the edge line direction L (among Fig. 1, Fig. 2 be transverse direction) parallel with one side of illuminating part 4 configures is more than the quantity of the light source cell 2 that edge configures with the column direction C (being longitudinally in Fig. 1, Fig. 2) of line direction L-orthogonal.Fig. 1, Fig. 2 illustrate that L is configured with three light source cells 2 in the row direction, are configured with the rectangular example of 3 × 2 of two light source cells 2 along column direction C.Clearance G is provided with between light source cell 2 adjacent on column direction C.Light source cell 2 adjacent on line direction L configures close to each other.
As shown in Figure 1, illuminating part 4 has and is parallel to light-emitting area 2A and the circuit board 41 arranged, the multiple LED42 being installed on circuit board 41 and cover the cover 43 that LED42 and carrying out protects.LED42 such as have outgoing blue light blue LED die, seal the seal member of this blue LED die and the blue light be dispersed in sealing material be converted to the fluorophor of sodium yellow.These blue lights mix mutually with sodium yellow, make LED42 outgoing white light.Cover 43 by for from the white light of LED42 outgoing through translucent material form.That is, cover 43 to be such as made up of transparent acrylic resin, clear polycarbonate resin or clear glass.
Radiating part 5 has the multiple plate-like tile 51 extended along the direction orthogonal with light-emitting area 2A.Multiple plate-like tile 51 is set up in parallel with being parallel to column direction C.Plate-like tile 51 is made up of thermal conductivity and higher the material such as aluminium or copper of rigidity.
Next, the structure of lighting device 1 is described on one side in further detail with reference to Fig. 3 A ~ Fig. 3 C.Fig. 3 A is the plane observing the lighting device 1 shown in Fig. 1 from the direction opposed with light-emitting area 2A.Fig. 3 B is the plane observing lighting device 1 from the direction opposed with radiating part 5.Fig. 3 C is the side view of lighting device 1.
Lighting device 1 also has supporting mass 6 and power subsystem 7.Holding frame 3 supports as rotating by the both ends 31,32 on the line direction L of holding frame 3 by supporting mass 6.In more detail, as shown in Figure 3A, holding frame 3 supports as rotating using the line linked at both ends 31,32 as turning cylinder Ax by supporting mass 6.Therefore, it is possible to make centered by turning cylinder Ax holding frame 3 and light source cell 2 to regulation towards rotation.
Power subsystem 7 is powered to each light source cell 2.Power subsystem 7 configures on the face being configured with radiating part 5 in the mode of plugging gap G, and is electrically connected with each light source cell 2 via cable 71.Power subsystem 7 is connected to source power supply (not shown), and is built-in with the lighting circuit (not shown) of the power supply controlled from this source power supply to LED42.
Fig. 4 A, Fig. 4 B are the sectional view of the 4A-4A line of Fig. 3 B and the sectional view of 4B-4B line respectively.As shown in Figure 4 A, the length L1 of plate-like tile 51 on column direction C is preferably equal with the length L2 of illuminating part 4 on column direction C.Like this, by increasing the surface area of plate-like tile 51, the thermal diffusivity of plate-like tile 51 can be improved.In addition, as shown in Figure 4 B, plate-like tile 51 is not located at the both ends 44,45 of illuminating part 4 in the row direction on L.In other words, plate-like tile 51 is located at the position except the both ends 44,45 on line direction L of illuminating part 4.Like this, the border each other on illuminating part 4 in the row direction L, plate-like tile 51 each other can not be close.Therefore, it is possible to prevent the reduction of the thermal diffusivity caused because plate-like tile 51 is closer to each other.
If arrange the lighting device 1 formed as described above in the mode that column direction C is consistent with vertical, then in the horizontal direction (line direction L) quantity of light source cell of configuring is more than the quantity of the light source cell 2 configured along vertical.In the example depicted in figure 1, the quantity of light source cell 2 along vertical configuration is two, and the quantity of light source cell that (line direction L) configures in the horizontal direction is three.
In addition, in each light source cell 2, plate-like tile 51 is provided with being parallel to vertical.Therefore, the thermal capacitance produced along with the luminescence of light source cell 2 is easily along with ascending air is discharged above the vertical of lighting device 1.Therefore, thermal diffusivity is higher.Thereby, it is possible to prevent the excessive heating of lighting device 1, prevent the misoperation of the lighting device 1 caused because of thermal runaway, fault.This effect in the quantity of light source cell 2 forming lighting device 1 more so that thermal diffusivity reduces or this high output device of photophore that rises at the easy initiation temperature of luminescence along with light source cell 2 in be even more important.
The flowing of ambient air when Fig. 5 A ~ Fig. 5 C represents to make the light from light source cell 2 shown in hollow arrow respectively below vertical tiltedly below, vertical and the mode of irradiating above vertical configures lighting device 1, lighting device 1.In lighting device 1, between the adjacent light source cell 2 on column direction C, be provided with clearance G.Therefore, the clearance G that flows through of the air shown in dotted arrow is discharged above the vertical of lighting device 1, and the heat of radiating part 5 is rejected heat in air efficiently.
In addition, in the configuration shown in Fig. 5 A, Fig. 5 B, the ascending air comprised from the heat of radiating part 5 can arrive power subsystem 7.But owing to configuring in the mode of power subsystem 7 plugging gap G, therefore power subsystem 7 is through the chilled air cools that clearance G flows through.Therefore, power subsystem 7 is difficult to the impact of the heat be subject to from radiating part 5 (light source cell 2).On the other hand, in the configuration shown in Fig. 5 C, the ascending air comprised from the heat of power subsystem 7 can arrive light source cell 2.But this ascending air is discharged above the vertical of lighting device 1 through clearance G.Therefore, light source cell 2 is difficult to the impact of the heat be subject to from power subsystem 7.
On the other hand, reference Fig. 6 A ~ Fig. 6 C is while illustrate the situation not arranging the lighting device of clearance G.Fig. 6 A ~ Fig. 6 C is the figure of the flowing of the ambient air representing the lighting device not arranging gap between adjacent light source cell.
In this lighting device, because air can not be discharged through light source cell 2, therefore easily heat build-up in the region comprising light source cell 2 border each other represented by single dotted broken line encirclement.In addition, in the configuration shown in Fig. 6 A, Fig. 6 B, because the ascending air comprised from the heat of radiating part 5 can arrive power subsystem 7, therefore power subsystem 7 is easily subject to the impact of the heat from radiating part 5 (light source cell 2).On the other hand, in the configuration shown in Fig. 6 C, because the ascending air comprised from the heat of power subsystem 7 can arrive light source cell 2, therefore light source cell 2 is easily subject to the impact of the heat from power subsystem 7.
As described above, preferably multiple light source cell 2 is configured with multiple along column direction C, and is provided with clearance G between two light source cells 2 adjacent on column direction C in multiple light source cell 2.
In addition, for representing the inscape do not recorded in the independent claims of upper concept of the present invention in the inscape in embodiment, illustrate as arbitrary inscape.In addition, lighting device of the present invention is not limited to above-mentioned embodiment, but can carry out various distortion.Such as, also can be the structure in the row direction with gapless plate-like tile arranged side by side.In addition, the configuration of light source cell be not limited to above-mentioned 3 × 2 rectangular, also can be such as 4 × 3,10 × 4 rectangular.In addition, the mode that the quantity that light source cell preferably configures along column direction with the number ratio configured in the row direction is many is formed, but also can be formed in the mode that the quantity configured in the row direction is equal with the quantity configured along column direction.In addition, also can be configured to, utilize the multiple LED of the light of the mutually different color of outgoing to form LED, and independently brightness adjustment control is carried out to various LED, thus color, the colour temperature of irradiating light can be adjusted.And the light source of light source cell is non-essential is defined in LED, such as, the HID lamp of high-pressure mercury lamp, xenon lamp etc., white fluorescent lamp or incandescent lamp also can be utilized to form.
Claims (5)
1. a lighting device, possesses and is configured to rectangular multiple light source cells, it is characterized in that,
Described multiple light source cell has respectively: the illuminating part with the rectangular flat shape of light-emitting area; And radiating part, that be located at described illuminating part with face that is described light-emitting area opposite side;
Along the quantity of the described light source cell that the line direction parallel with one side of described illuminating part configures, be more than the quantity of the described light source cell that the edge column direction orthogonal with described line direction configures,
Described radiating part has the multiple plate-like tile extended along the direction orthogonal with described light-emitting area,
Described multiple plate-like tile is parallel to described column direction and is set up in parallel.
2. lighting device according to claim 1, is characterized in that,
Described plate-like tile length is in the column direction equal with described illuminating part length in the column direction.
3. lighting device according to claim 1 and 2, is characterized in that,
Described plate-like tile is located at the position except the both ends of described line direction of described illuminating part.
4. lighting device according to claim 3, is characterized in that,
Described multiple light source cell is configured with multiple along described column direction,
Gap is provided with between two in described multiple light source cell, adjacent in the column direction light source cells.
5. lighting device according to claim 1 and 2, is characterized in that,
Described multiple light source cell is configured with multiple along described column direction,
Gap is provided with between two in described multiple light source cell, adjacent in the column direction light source cells.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-107269 | 2014-05-23 | ||
| JP2014107269A JP6403109B2 (en) | 2014-05-23 | 2014-05-23 | Lighting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105090774A true CN105090774A (en) | 2015-11-25 |
| CN105090774B CN105090774B (en) | 2017-10-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510176820.0A Expired - Fee Related CN105090774B (en) | 2014-05-23 | 2015-04-14 | Lighting device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6403109B2 (en) |
| CN (1) | CN105090774B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6668787B2 (en) * | 2016-01-29 | 2020-03-18 | 東芝ライテック株式会社 | Lighting equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201429006Y (en) * | 2009-06-18 | 2010-03-24 | 浙江摩根电子科技有限公司 | LED road lamp |
| CN201526838U (en) * | 2009-09-30 | 2010-07-14 | 吴云肖 | LED lamp with built-in radiator |
| CN102128389A (en) * | 2011-01-13 | 2011-07-20 | 深圳市佳比泰电子科技有限公司 | LED (Light-Emitting Diode) streetlamp capable of adjusting light-emitting angle in two directions and manufacturing process thereof |
| CN202024129U (en) * | 2011-01-31 | 2011-11-02 | 杭州中港数码技术有限公司 | LED lamp with adjustable power |
| CN202040680U (en) * | 2011-03-25 | 2011-11-16 | 东莞健达照明有限公司 | Modular LED (light-emitting diode) street lamp |
| US20130088869A1 (en) * | 2011-10-10 | 2013-04-11 | Posco Led Company, Ltd. | Optical semiconductor based illuminating apparatus |
| CN203442742U (en) * | 2013-09-26 | 2014-02-19 | 江西省通用节能科技有限公司 | Power supply mounting device for LED (light-emitting diode) tunnel lamp |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013012389A (en) * | 2011-06-29 | 2013-01-17 | Ushio Inc | Light source element |
| JP6276495B2 (en) * | 2012-03-26 | 2018-02-07 | 東芝ライテック株式会社 | Lighting device |
| JP2014026936A (en) * | 2012-07-30 | 2014-02-06 | Funai Electric Co Ltd | Lighting device |
-
2014
- 2014-05-23 JP JP2014107269A patent/JP6403109B2/en active Active
-
2015
- 2015-04-14 CN CN201510176820.0A patent/CN105090774B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201429006Y (en) * | 2009-06-18 | 2010-03-24 | 浙江摩根电子科技有限公司 | LED road lamp |
| CN201526838U (en) * | 2009-09-30 | 2010-07-14 | 吴云肖 | LED lamp with built-in radiator |
| CN102128389A (en) * | 2011-01-13 | 2011-07-20 | 深圳市佳比泰电子科技有限公司 | LED (Light-Emitting Diode) streetlamp capable of adjusting light-emitting angle in two directions and manufacturing process thereof |
| CN202024129U (en) * | 2011-01-31 | 2011-11-02 | 杭州中港数码技术有限公司 | LED lamp with adjustable power |
| CN202040680U (en) * | 2011-03-25 | 2011-11-16 | 东莞健达照明有限公司 | Modular LED (light-emitting diode) street lamp |
| US20130088869A1 (en) * | 2011-10-10 | 2013-04-11 | Posco Led Company, Ltd. | Optical semiconductor based illuminating apparatus |
| CN203442742U (en) * | 2013-09-26 | 2014-02-19 | 江西省通用节能科技有限公司 | Power supply mounting device for LED (light-emitting diode) tunnel lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2015222691A (en) | 2015-12-10 |
| CN105090774B (en) | 2017-10-03 |
| JP6403109B2 (en) | 2018-10-10 |
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