CN204268414U - LED lighting device - Google Patents
LED lighting device Download PDFInfo
- Publication number
- CN204268414U CN204268414U CN201420677543.2U CN201420677543U CN204268414U CN 204268414 U CN204268414 U CN 204268414U CN 201420677543 U CN201420677543 U CN 201420677543U CN 204268414 U CN204268414 U CN 204268414U
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- CN
- China
- Prior art keywords
- luminescence unit
- led
- light
- device body
- guide plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Planar Illumination Modules (AREA)
Abstract
The utility model relates to a kind of LED light device.Device body (20) holds the first luminescence unit (30).The sidewall (24) that first luminescence unit comprises a LED luminescence unit (31) and is arranged in device body is sentenced and is caused the light guide plate (32) of light-incident end (321) in the face of the light emission direction of a LED luminescence unit.In addition, device body holds the second luminescence unit (50).Second luminescence unit comprises: the 2nd LED luminescence unit (51); Center lens (52), the central cover (60) of its apparatus adjacent body arranges and configures to transmit the light of the 2nd LED luminescence unit; And cylindrical portion (53), it is located between the 2nd LED luminescence unit and central cover (60).Central cover is concordant with the plane comprising center lens, or gives prominence to along the illumination direction of the second luminescence unit from the plane comprising center lens.Thus optical sensor (63) is difficult to be affected by the second luminescence unit (50).This LED light device can prevent the error running of optical sensor (63).
Description
Technical field
The utility model relates to LED light device, and it is provided with optical sensor.
Background technology
Traditionally, known lighting device is provided with the optical sensor for detecting surrounding brightness, and configuration comes to control Light distribation (such as, see Japanese Unexamined Patent Application Publication 2012-22849 (Fig. 3)) according to surrounding brightness.
As shown in Figure 7, disclosed in Japanese Unexamined Patent Application Publication 2012-22849, lighting device 100 comprises: disc-shaped foot 102, and it is attached to ceiling surface 101 etc.There is disc shaped and the diffuser 103 with light scattering attribute is attached to base 102.Discoidal central cover 104 is detachably attached to the core of diffuser 103.
LED module 105 is located in base 102.Control unit (not shown) for controlling LED module 105 is contained in base 102.Lens 109 are set to LED module 105.The light launched from LED module 105 is collected and irradiates along specific direction.Circuit board 106 is attached to base 102.The sensor base 108 of it being installed optical sensor (illuminance transducer) 107 is connected to base 102.Light source 107 is exposed downwards by a through hole, and this through hole is formed in the central cover 104 being arranged in lighting device bottom surface portions.
According to the illumination detected by optical sensor 107, control unit (not shown) regulates the brightness of the light launched from LED module 105.
In aforementioned illumination apparatus 100 disclosed in Japanese Unexamined Patent Application Publication 2012-22849, its core is covered by central cover 104 and is dark.Therefore, if optical sensor 107 is placed on core, optical sensor 107 is difficult to adversely be affected by the light launched from LED module 105.
But if observe lighting device 100 from below, due to the existence of central cover 104, its core becomes dark.In order to prevent core dimmed, it is contemplated that placement light source in the central cover 104 of lighting device.But there is risk in this case: optical sensor may run mistakenly under the impact being placed on the light source in central cover 104.Given this, if light source is placed on the bottom surface portions of lighting device 100, optical sensor can not be placed on bottom surface portions.
Utility model content
In view of more than, the utility model provides a kind of LED light device, even if when light source is located at the bottom surface of lighting device, it also reliably can keep the response characteristic of optical sensor, adversely can't affect optical sensor, prevent the error running of optical sensor.
According to an aspect of the present utility model, provide a kind of LED light device, comprising: device body, it has side and bottom surface; First luminescence unit, it comprises the light guide plate extended from the side of device body and the LED luminescence unit be contained in device body, and light guide plate is used for guiding and launches the light of a LED luminescence unit; Second luminescence unit, it comprises the 2nd LED luminescence unit be contained in device body and the center lens be located in the bottom surface of device body, and the second luminescence unit is used for guiding and is launched the light of the 2nd LED luminescence unit by center lens; Optical sensor, it is contained in device body; And central cover, it is located at the bottom surface side of device body and comprises by unthreaded hole at the part place corresponding to optical sensor position of central cover, wherein central cover is concordant with the plane comprising center lens, or gives prominence to along the illumination direction of the second luminescence unit from this plane comprising center lens.
According to the utility model, be formed on the bottom surface of device body with the relation adjoined with the second luminescence unit by unthreaded hole, and the bottom surface being arranged in device body corresponds to the position of optical sensor position.Thus optical sensor is difficult to be affected by the second luminescence unit.Therefore this LED light device can prevent the error running of optical sensor.
Accompanying drawing explanation
Accompanying drawing describes the one or more embodiments according to this instruction by means of only the mode of example instead of the mode of limitation.In the accompanying drawings, identical Reference numeral represents same or analogous element.
Fig. 1 is the bottom side perspective view that the state being wherein attached to ceiling surface according to the LED light device of embodiment of the present utility model is shown.
Fig. 2 is the top side stereogram of the LED light device according to this embodiment of the present utility model.
Fig. 3 is the sectional view intercepted along the line III-III of Fig. 1.
Fig. 4 is key diagram, shows the position relationship between LED luminescence unit (lower LED luminescence unit) and upper light guide plate (lower light guide plate).
Fig. 5 is the perspective view of the LED light device cut open from the position by unthreaded hole.
Fig. 6 is the sectional view of the major part of the LED light device cut open from the position by unthreaded hole.
Fig. 7 is the sectional view of traditional lighting device.
Detailed description of the invention
Now with reference to accompanying drawing, the LED light device according to the utility model embodiment is described.
As shown in Figure 1, the LED light device 10 according to an embodiment is such as attached to ceiling surface 11, and can be used for mainly throwing light on the downside of it.
In the following description, when LED light device 10 is attached to ceiling surface 11, that side of ceiling surface 11 is called " on ".That side (that is, floor side) contrary with ceiling surface 11 is called D score.
First, the overall structure of LED light device 10 will be briefly described.
As illustrated in fig. 1 and 2, LED light device 10 comprises the device body 20 being attached to ceiling surface 11.
Upper light guide plate 32 is arranged in the downside of device body 20.The opaque white upper cover 33 with reflecting attribute to be arranged under light guide plate 32 and to be attached to device body 20, and upper cover 33 is light guide plate 32 on the downside of upper light guide plate 32 supports.
Lower light guide plate 42 is arranged under upper cover 33 with the relation parallel with upper light guide plate 32.The opaque white lower cover 43 with reflecting attribute is arranged under lower light guide plate 42, and lower cover 43 is light guide plate 42 under the downside of lower light guide plate 42 supports.Upper light guide plate 32 is arranged to stretch out from the side of device body 20.
When observing in plan view from below, lower cover 43 has annular shape.The center lens (light-transmitting panel) 52 of annular is located at the inner side of lower cover 43 with the relation adjacent with lower cover 43, extend with the inner circumferential along lower cover 43.
The central cover 60 of annular is located at inside center lens 52.Pan-shaped cover 61 is detachably attached to the inner side of central cover 60.When observing in plan view, lower cover 43, center lens 52, central cover 60 and lid 61 forms the bottom surface of LED light device 10.
Being formed in central cover 60 by unthreaded hole 62 (see Fig. 5) for optical sensor 63.
Will now describe all parts part.
As shown in Figures 2 and 3, device body 20 such as by the metal manufacture of such as aluminium etc., and forms the global shape of plate-like.In the center of device body 20, form the opening 21 for being attached adapter 22, attachment adapter 22 is attached to ceiling socket (not shown), and ceiling socket is fixed to ceiling surface 11.
Device body 20 obliquely bending with the outer circumference end from par, center 23 downwards and stretch out.Sidewall 24 is formed in device body 20.The end portion of sidewall 24 is bent outwardly, to form horizontal part 25.
Sidewall 24 is arranged with the relation that the upper LED luminescence unit (a LED luminescence unit) 31 with following is corresponding, and forms the such as hexagonal shape when observing in plan view.Sidewall 24 forms flat shape.Multiple (such as three) flexible member 26 is attached to par 23.
Thus by removing lid 61 and attachment adapter 22 being attached to ceiling socket, attachment adapter 22 is electric and be mechanically connected to ceiling socket, and device body 20 is attached to ceiling surface 11 whereby.Now, flexible member 26 is flexibly out of shape between device body 20 and ceiling surface 11, thus prevents any shake of device body 20.
As shown in Figure 3, upper luminescence unit (the first luminescence unit) 30 is located at inside device body 20.Upper luminescence unit 30 is provided with LED luminescence unit 31 and upper light guide plate 32.
Upper LED luminescence unit 31 comprises LED chip 311 and LED chip 311 and is installed to LED substrate 312 on it.
Upper LED luminescence unit 31 is located at inside device body 20, to contact the lower surface of par 23.Exist and have six of corresponding relation upper LED luminescence units 31 with the shape (hexagon) of sidewall 24.
In the downside of upper LED luminescence unit 31, upper cover 33 is attached to device body 20.Upper cover 33 comprises: annular horizontal support section 331, and it is attached to device body 20 and outside horizontal-extending; With inclined shore part 332, its outer circumference end from horizontal support portion 331 outwards also upwards extends.
The upper end 333 of inclined shore part 332 is arranged to relative with the horizontal part 25 of device body 20.Upper light guide plate 32 is supported between the horizontal part 25 of device body 20 and the upper end 333 of upper cover 33.
Upper light guide plate 32 has the global shape of plate-like.Upper light guide plate 32 is included in the hollow space (not shown) at its center.Hollow space forms hexagonal shape with the relation corresponding with upper LED luminescence unit 31, and upper LED luminescence unit 31 is supported by device body 20 and with hexagonal arrangement.Rib or typographic(al) mark can be formed on the surface of light guide plate 32, to control Light distribation.
The hollow space side end of upper light guide plate 32 becomes light-incident end 321, and it is towards the LED chip 311 (see Fig. 4) of LED substrate 312.
As shown in figs. 1 and 3, in the downside of upper cover 33, lower cover 43 is supported by device body 20.Lower light guide plate 42 is supported between upper cover 33 and lower cover 43.Lower light guide plate 42 is arranged to stretch out from the side of device body 20.
As shown in Figure 3, between lower light guide plate 42 lower surface that is supported on the horizontal support portion 331 of upper cover 33 and the upper end 431 of lower cover 43.
Lower light guide plate 42 is less than light guide plate 32 dimensionally, but structurally identical with upper light guide plate 32.Therefore, lower light guide plate 42 will not be described in detail.
Lower luminescence unit 40 is located between upper cover 33 and lower cover 43.Lower luminescence unit 40 comprises lower LED luminescence unit 41 and lower light guide plate 42.
Lower LED luminescence unit 41 comprises LED chip 411 and LED chip 411 and is installed to LED substrate 412 on it.The light-incident end 421 of lower light guide plate 42 is towards LED chip 411 (bracket see Fig. 4).
Lower cover 43 is opaque, and comprises: press section 432, the lower light guide plate 42 of its contact; With top plate portion 433, it is connected to press section 432.
Second luminescence unit 50 is to be orthogonal to the direction of the light emission direction (horizontal direction) of upper LED luminescence unit 31 and lower LED luminescence unit 41, and namely along irradiating light in downward direction, the second luminescence unit 50 is located on center lens 52.
Second luminescence unit 50 comprises: the 2nd LED luminescence unit 51; Center lens 52, its contiguous central cover 60 is arranged; And cylindrical portion 53, it is located between the 2nd LED luminescence unit 51 and central cover 60.
As illustrated in Figures 5 and 6, in annular LED substrate 512 upper annular, the 2nd LED luminescence unit 51 can by arranging that multiple LED chip 511 is formed.LED chip 511 faces down.Center lens 52 is attached to the emitting side (downside) of the 2nd LED luminescence unit 51.
Therefore, from the 2nd LED luminescence unit 51 launch light by center lens 52 distributed controll, and major part just downwards irradiate come illumination.
Optical sensor 63 is located at the inner side (upside) by unthreaded hole 62, is formed in central cover 60 by unthreaded hole 62.That is, optical sensor 63 is arranged in the inner side (central side) of cylindrical portion 53 and is contained in device body 20.Optical sensor 63 is by directed along the light direction of illumination (downwards) of the second luminescence unit 50 by unthreaded hole 62.
Optical sensor 63 is connected to supply unit 27, for controlling the Light distribation of upper luminescence unit 30, lower luminescence unit 40 and the second luminescence unit 50.In response to the detectable signal sent from optical sensor 63, supply unit 27 controls each luminescence unit.Supply unit 27 is contained in device body 20.
As shown in Figure 6, the lower surface 601 of central cover 60 is formed as giving prominence to along the illumination direction (downwards) of the second luminescence unit 50 with the distance being equal to or greater than the outstanding distance of the lower surface 521 of center lens 52.That is, the lower surface 601 of central cover 60 and the lower surface 521 of center lens 52 concordant or be positioned at center lens 52 lower surface 521 under.
Therefore, the lower surface 601 of central cover 60 is positioned at the lower side of the LED light device 10 being attached to ceiling surface 11.
Will now describe the effect of LED light device 10.
In LED light device 10, device body 20 holds upper luminescence unit 30.The sidewall 24 that upper luminescence unit 30 comprises LED luminescence unit 31 and is arranged in device body 20 is sentenced and is caused the upper light guide plate 32 of light-incident end 321 in the face of the light emission direction of upper LED luminescence unit 31.
Further, device body 20 holds the second luminescence unit 50.Second luminescence unit 50 comprises: the 2nd LED luminescence unit 51; Center lens 52, the central cover 60 of its apparatus adjacent body 20 arranges and configures to transmit the light of the 2nd LED luminescence unit 51; And cylindrical portion 53, it is located between the 2nd LED luminescence unit 51 and central cover 60.
In addition, device body 20 comprises: optical sensor 63, and it is arranged in the inner side of cylindrical portion 53 and light direction of illumination along the second luminescence unit 50 is directed; And by unthreaded hole 62, it is formed in the position of the position corresponding to optical sensor 63 in central cover 60.
Central cover 60 is arranged to give prominence to along the illumination direction of the second luminescence unit 50 with the distance being equal to or greater than the outstanding distance of the lower surface 521 of center lens 52.
Further, be formed as illumination direction along the second luminescence unit 50 to be equal to or greater than the second luminescence unit 50 by unthreaded hole 62, namely the distance of the outstanding distance of the lower surface 521 of center lens 52 is given prominence to.
For this reason, optical sensor 63 detects surrounding brightness by the unthreaded hole 62 that is subject to be formed in central cover 60.Therefore, optical sensor 63 is difficult to by the influence of light of launching from upper luminescence unit 30, lower luminescence unit 40 and the second luminescence unit 50.This can prevent the error running of optical sensor 63.
LED light device of the present utility model is not limited to previous embodiment, but can suitably change or revise.Such as, in the aforementioned embodiment, the situation that luminescence unit 30 is used as the first luminescence unit has been shown.But, lower luminescence unit 40 can be used as the first luminescence unit equally.
Further, in the aforementioned embodiment, circular apparatus body has been described.But the utility model can be applied to the lighting device of so configuration: light guide plate extends from the opposite sides of rectangular devices body.
Although be described previously imputed optimal mode and/or other examples, it will be appreciated that, various variant can be made wherein and main body disclosed herein can be implemented by various forms and example, and various variant goes for multiple application, the only part in these variants is open in this article.Following claims are intended to protect and fall into any and all modifications in this instruction true scope and variant.
Claims (1)
1. a LED light device, is characterized in that, described LED light device comprises:
Device body, it has side and bottom surface;
First luminescence unit, it comprises the light guide plate extended from the side of device body and the LED luminescence unit be contained in device body, and light guide plate is used for guiding and launches the light of a LED luminescence unit;
Second luminescence unit, it comprises the 2nd LED luminescence unit be contained in device body and the center lens be located in the bottom surface of device body, and the second luminescence unit is used for guiding and is launched the light of the 2nd LED luminescence unit by center lens;
Optical sensor, it is contained in device body; And
Central cover, it is located at the bottom surface side of device body and comprises by unthreaded hole at the part place corresponding to the position of optical sensor of central cover,
Wherein central cover is concordant with the plane comprising described center lens, or gives prominence to along the illumination direction of the second luminescence unit from the plane comprising described center lens.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-234733 | 2013-11-13 | ||
| JP2013234733A JP6233777B2 (en) | 2013-11-13 | 2013-11-13 | LED lighting fixtures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204268414U true CN204268414U (en) | 2015-04-15 |
Family
ID=52803276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420677543.2U Expired - Fee Related CN204268414U (en) | 2013-11-13 | 2014-11-13 | LED lighting device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6233777B2 (en) |
| CN (1) | CN204268414U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107401708A (en) * | 2016-05-19 | 2017-11-28 | 松下知识产权经营株式会社 | Ligthing paraphernalia |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4970172B2 (en) * | 2007-07-13 | 2012-07-04 | 日立アプライアンス株式会社 | lighting equipment |
| JP2013037802A (en) * | 2011-08-04 | 2013-02-21 | Toshiba Lighting & Technology Corp | Lighting fixture |
-
2013
- 2013-11-13 JP JP2013234733A patent/JP6233777B2/en not_active Expired - Fee Related
-
2014
- 2014-11-13 CN CN201420677543.2U patent/CN204268414U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107401708A (en) * | 2016-05-19 | 2017-11-28 | 松下知识产权经营株式会社 | Ligthing paraphernalia |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2015095391A (en) | 2015-05-18 |
| JP6233777B2 (en) | 2017-11-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150415 Termination date: 20171113 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |