CN103968299A - Double-sided LED cabinet lamp - Google Patents
Double-sided LED cabinet lamp Download PDFInfo
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- CN103968299A CN103968299A CN201410154813.6A CN201410154813A CN103968299A CN 103968299 A CN103968299 A CN 103968299A CN 201410154813 A CN201410154813 A CN 201410154813A CN 103968299 A CN103968299 A CN 103968299A
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- led lamp
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Abstract
The invention discloses a double-sided LED cabinet lamp. The double-sided LED cabinet lamp comprises a lamp body, two LED lamp sets and light-transmitting boards, wherein the LED lamp sets are covered with the light-transmitting boards. Included angles are formed between the outer side surfaces of circuit boards of the LED lamp sets and a transverse board of the lamp body. The light-transmitting boards are prisms and the vertex angles between the outer side surfaces of the prisms and the inner side surfaces of the prisms are acute angles. The outer side surfaces of the prisms are parallel to or flush with the surface of a shelf of a cabinet, and the vertex angles are close to a front board of the lamp body. After the structure is adopted, light emitted out by the LED lamp sets deflects in the direction of the shelf of the cabinet as a whole after being reflected by the prisms, therefore, luminous regions outside the cabinet are reduced, the light is prevented from shooting the eyes directly, luminous regions in the direction of the shelf of the cabinet are increased and shadow regions are reduced.
Description
original applying number:2012102986336 August 21 2012 original application day former denomination of invention: dual surface LED cabinet lamp.
Technical field
The present invention relates to a kind of lighting device of cupboard, especially relate to a kind of dual surface LED cabinet lamp.
Background technology
Cupboard is the daily apparatus for stored goods, as cabinet is used for storing kitchen tools, wardrobe for storing clothing.Bright cupboard brings warm living atmosphere.Therefore, be subject to people's favor once going on the market with the cupboard of light source.The existing light fixture for cupboard is a kind of dual surface LED cabinet lamp as shown in Figure 1, comprises lamp body, two groups of LED lamp groups and printing opacity flat board; Lamp body is made into integration by aluminium alloy, lamp body comprises transverse slat, front and rear panels, the rear side middle part of header board is connected on one side with transverse slat, the middle part, front side of rear plate is connected with the another side of transverse slat, the Inlaid strip that the rear side middle part of rear plate is provided with, the rear side two ends of header board offer corresponding cell body with the two ends, front side of rear plate; LED lamp group is made up of multiple LED particles and wiring board, LED particle is arranged on the outer surface of wiring board, wiring board is electrically connected with power supply by electric pressure converter, wherein one group of LED lamp group be fixedly installed on transverse slat above, the inner side of wiring board that is arranged on the LED lamp group above of transverse slat is downward-sloping, another group LED lamp group is fixedly installed on below transverse slat, the inner side that is arranged on the wiring board of the LED lamp group below transverse slat is inclined upwardly, and the outer surface of wiring board and transverse slat form the angle of 20 °; Printing opacity is dull and stereotyped to be arranged in parallel with the transverse slat of lamp body and the shelf of cabinet, the dull and stereotyped surface that covers LED lamp group of printing opacity, and the both sides of printing opacity flat board are stuck in cell body; Shelf arranged outside has holddown groove, and Inlaid strip coordinates lamp body and shelf are fixed into one with holddown groove; After the refraction of the light that LED lamp group is sent by printing opacity flat board, illuminate the above and below of shelf.But because plate after LED particle self-luminous scope and lamp body or cabinet shelf front end block, form respectively shadow region A and shadow region B in the above and below of shelf; Because the outer surface of wiring board and the angle of transverse slat become 20 °, as shown in Figure 2, the actual range of exposures of LED particle is 10 ° ~ 130 °, and therefore, the scope in shadow region is at least 0 ° ~ 10 °; On the other hand, from cupboard, when access thing, eyes viewing area of living in is generally 120 ° ~ 150 °, and the part of this viewing area is subject to the direct projection of the light that LED particle sends, and easily causes eyes to be wounded by stabbing.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of dual surface LED cabinet lamp, and this dual surface LED cabinet lamp has been subdued the shelf top of cupboard and the shadow region of below, and can not stab eyes.
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of dual surface LED cabinet lamp, comprise lamp body, two groups of LED lamp groups and cover the light-passing board of described LED lamp group outside, between the outer surface of wiring board of described LED lamp group and the transverse slat of described lamp body, have angle; Described light-passing board is prism, and the drift angle between outer surface and the inner surface of described prism is acute angle; The plate face of the outer surface of described prism and the shelf of cupboard is parallel or flush, and described drift angle is near the header board of described lamp body.
Compared with prior art, the invention has the advantages that: light-passing board is prism, drift angle between outer surface and the inner surface of prism is acute angle, drift angle is near the header board of lamp body, the light that LED lamp group is sent to the shelf direction deflection of cupboard, had both reduced the light-emitting zone outside cupboard by entirety after the refraction of prism, had prevented the direct projection of light to eyes, increase again to the light-emitting zone of the shelf direction of cupboard, subdued shadow region.
As preferably, the angle between outer surface and the inner surface of described prism is 10 ° ~ 40 °; By suitable the angle of the angle between the angle of the drift angle of prism and the outer surface of wiring board and the transverse slat of lamp body of LED lamp group, thus angle and the intensity of adjustment emergent ray.
As preferably, the drift angle between outer surface and the inner surface of described prism is 25 ° ~ 30 °, and the inner surface of described prism is parallel with the outer surface of the wiring board of described LED lamp group; The outer surface of the wiring board of the inner surface of prism and LED lamp group is be arranged in parallel, reduced the difficulty that lamp body is made.
As preferably, the angle between the outer surface of wiring board and the transverse slat of described lamp body of described LED lamp group angle be 30 °; Drift angle is that the prism comparison of 30 ° is convenient.
As improvement, the end of described lamp body is provided with end cap, is provided with shading type inductive switch on the lateral surface of described end cap; Described shading type inductive switch is connected with electric pressure converter, the negative pole of described light source module is connected with the negative pole of described electric pressure converter by described shading type inductive switch, on the lateral surface of described end cap, be also provided with normal open switch, the negative pole of described light source module is also connected with the negative pole of described electric pressure converter by normal open switch; In the situation that normal open switch is opened, just can control the switch of this dual surface LED cabinet lamp by the switch of cabinet door, easy to operate; And after closed normal open switch, in the situation that cabinet door is closed, still can throw light on to the kitchen range top below shelf.
As improvement, the two ends of the inner panel of the described lamp body formation edge that extends back, described edge matches with the shelf of cupboard; Edge matches lamp body and shelf is assembled into one with cupboard shelf, can not destroy the intensity of shelf.
Brief description of the drawings
Fig. 1 is the effect schematic diagram of prior art.
Fig. 2 is the index path of prior art.
Fig. 3 is schematic perspective view of the present invention.
Fig. 4 is the cutaway view of lamp body part of the present invention.
Fig. 5 is the index path of the LED particle above the transverse slat of the embodiment of the present invention 1.
Fig. 6 is the index path of the LED particle below the transverse slat of the embodiment of the present invention 1.
Fig. 7 is circuit diagram of the present invention.
Fig. 8 is that light of the present invention is by the refraction principle figure of prism.
Shown in figure: 1, lamp body, 1.1, header board, 1.2, transverse slat, 1.3, rear plate, 1.4, edge, 2, LED lamp group, 2.1, the outer surface of the wiring board of LED lamp group, 3, light-passing board, 3.1, outer surface, 3.2, inner surface, 3.3, prism.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment is described in further detail the present invention.
Embodiment 1: as shown in Figure 3 and Figure 4, this preferred embodiment is a kind of dual surface LED cabinet lamp, comprise lamp body 1, two groups of LED lamp groups 2 and cover the light-passing board 3 on LED lamp group 2 surfaces, wherein, lamp body 1 is made into integration by aluminium section bar, lamp body 1 comprises header board 1.1, transverse slat 1.2 and rear plate 1.3, header board 1.1 rear side middle parts are connected with one side of transverse slat 1.2, rear plate 1.3 middle parts, front side are connected with the another side of transverse slat 1.2, header board 1.1 rear sides and rear plate 1.3 front sides are provided with corresponding holddown groove, near the end of header board 1.1 rear sides and rear plate 1.3 front sides, be provided with corresponding locating slot, transverse slat 1.2 is parallel with the plate face of the shelf of cupboard, the wiring board of LED lamp group 2 inserts in holddown groove, and the outer surface 2.1 of wiring board is 30 ° with the angle theta of transverse slat 1.2, light-passing board 3 is prism, the outer surface 3.1 of prism and the vertex angle theta of inner surface 3.2 ' be 30 °, the outer surface 3.1 of prism is parallel with transverse slat 1.2, inner surface 3.2 is parallel with the outer surface 2.1 of the wiring board of LED lamp group, the prism 3.3 of prism is vertical with inner surface 3.2, the both sides of prism are provided with raised line, and raised line inserts in locating slot prism and lamp body are fixed, the two ends of rear plate 1.3 extend back and form edge 1.4, and edge 1.4 matches with the front end of the shelf of cupboard dual surface LED cabinet lamp and the fixing one that forms of shelf.
In the present embodiment, the outer surface 3.1 of prism flushes with the plate face of the shelf of cupboard, and the emergent light after prism refraction can not blocked by plate 1.3 after lamp body 1; The inner surface 3.2 of prism be arranged in parallel with the outer surface 2.1 of the wiring board of LED lamp group 2, and it is relative simple that the holddown groove that makes lamp body 1 and locating slot arrange, and reduced the difficulty that lamp body 1 is manufactured; Prism is the right angle prism of 30 ° of drift angles, is made up of milky acrylic board, and refractive index is 1.3, and this prism is because the short right-angle side in its cross section is the half of hypotenuse, and comparison is convenient.
As shown in Figure 5 and Figure 6, the light that LED particle sends entirety after the refraction of prism is offset to the shelf direction of cupboard, both reduced the light output to cabinet front, the maximum illumination angle delta of the incident light that LED particle sends after the refraction of prism is 106 °, neither can direct projection eyes, subdued again shadow region simultaneously.
In the present embodiment, lamp body both sides are provided with end cap, on one of them end cap, be provided with shading type inductive switch, shading type inductive switch comprises infrared photoelectric switch U1, triode Q1, triode Q2, resistance R 1, resistance R 2, resistance R 3, resistance R 4 and resistance R 5.The circuit diagram of this dual surface LED cabinet lamp as shown in Figure 7, infrared photoelectric switch U1 luminous component anodal with is connected with the positive pole of electric pressure converter output (not shown), the negative pole of the luminous component of infrared photoelectric switch U1 passes through resistance R 1 and is connected with the negative pole of electric pressure converter output; The positive pole of infrared photoelectric switch U1 receiving unit is connected with the positive pole of electric pressure converter output, the negative pole of infrared photoelectric switch U1 receiving unit is connected with one end of one end of resistance R 2 and resistance R 3, the other end of resistance R 2 is connected with the negative pole of electric pressure converter output, the other end of resistance R 3 is connected with the colelctor electrode of triode Q1, and the emitter stage of triode Q1 is connected with the negative pole of electric pressure converter output; One end of resistance R 4 is connected with the positive pole of electric pressure converter output, and the other end of resistance R 4 is connected with the colelctor electrode of triode Q1 and the base stage of triode Q2, and the emitter stage of triode Q2 is connected with the negative pole of electric pressure converter output; One end of resistance R 5 is connected with the positive pole of electric pressure converter output, and the other end of resistance R 5 is connected with the colelctor electrode of triode Q2.Wherein, resistance R 1 is connected by the resistance of three 220R.In addition, LED lamp group is made up of multiple parallel circuits, and each connection circuit is composed in series by the resistance of 3 LED particles and 1 180R; The positive pole of LED lamp group is connected with the positive pole of electric pressure converter output, and the negative pole of LED lamp group is connected with the colelctor electrode of triode Q2; The negative pole of LED lamp group is also connected with the negative pole of electric pressure converter output by normal open switch K.
The specific works principle of circuit is: in the time that cabinet door is closed, the luminous component transmitted signal of infrared photoelectric switch U1, infrared photoelectric switch U1 receiving unit is received conducting after signal, make triode Q1 conducting, and triode Q2 cut-off, now LED lamp group and electric pressure converter output do not form loop, and LED lamp group is not luminous; In the time that cabinet door is opened, the luminous component transmitted signal of infrared photoelectric switch U1, infrared photoelectric switch U1 receiving unit is received not conducting after signal, make triode Q1 cut-off, and triode Q2 conducting, now LED lamp group and electric pressure converter output form loop, and LED lamp group is luminous.But, in the time that natural daylight is sufficient, open cabinet door, infrared photoelectric switch U1 acceptance division branch is owing to receiving infrared ray in natural daylight and conducting, make triode Q1 conducting, and triode Q2 cut-off, now LED lamp group and electric pressure converter output do not form loop, and LED lamp group is not luminous, thereby save electric power.And in the time that normal open switch K closes up, LED lamp group forms loop by normal open switch K and electric pressure converter output, now no matter the unlatching of cabinet door is still closed, and LED lamp group is all luminous provides illumination.
Embodiment 2: the present embodiment and embodiment 1 dual surface LED cabinet lamp are basic identical, comprises lamp body 1, two groups of LED lamp groups 2 and the light-passing board 3 with LED lamp group 2 relative set, and light-passing board 3 is prism, and prism is made up of acrylic board.Its difference is: the parallel (not shown) of plate face of the outer surface 3.1 of prism and the shelf of cupboard, and the gap of the distance between the outer surface 3.1 of two prisms and the thickness of shelf is 2 ~ 3mm, the refractive index of prism is 1.4, the vertex angle theta of prism ' be 25 ° of (not shown)s, the angle theta between the horizontal version 1.2 of the outer surface 2.1 of the wiring board of LED lamp group 2 and lamp body 1 is 25 ° of (not shown)s.Now the lighting angle of LED particle is 5 ° ~ 125 °, range of exposures after the refraction of prism is 0 ° ~ 109 °, can direct projection eye, but blocking due to the rear plate 1.3 of lamp body 1, actual range of exposures is 5 ° ~ 109 °, has subdued part shadow region.
Embodiment 3: the dual surface LED cabinet lamp of the present embodiment and embodiment 1 is basic identical, comprises lamp body 1, two groups of LED lamp groups 2 and the light-passing board 3 with LED lamp group 2 relative set, and light-passing board 3 is prism, and the refractive index of prism is 1.3.Its difference is: the vertex angle theta of prism ' be 10 ° of (not shown)s, the angle theta between the outer surface 2.1 of the wiring board of LED lamp group 2 and the transverse slat 1.2 of lamp body 1 is 45 ° of (not shown)s.Now the lighting angle of LED particle is-15 ° ~ 105 °, and light can direct projection eyes, and the range of exposures of light after the refraction of prism be 0 ° ~ 100 °, has subdued shadow region.
Embodiment 4: the dual surface LED cabinet lamp of the present embodiment and embodiment 1 and embodiment 3 is basic identical, comprises lamp body 1, two groups of LED lamp groups 2 and the light-passing board 3 with LED lamp group 2 relative set, and light-passing board 3 is prism, and the refractive index of prism is 1.3.Its difference is: the vertex angle theta of prism ' be 40 ° of (not shown)s, the angle theta between the horizontal version 1.2 of the outer surface 2.1 of the wiring board of LED lamp group 2 and lamp body 1 is 15 ° of (not shown)s.Now the lighting angle of LED particle is 15 ° ~ 135 °, and the range of exposures after the refraction of prism is 0 ° ~ 104 °, neither can direct projection eyes, subdue again shadow region.
General thought of the present invention as shown in Figure 8, light through the backward drift angle of refraction of prism to edge run-out, and α '=β+θ ' as shown in Figure 8, sin α/sin β=sin β '/sin α '=L, can obtain: β '=arcsin (Lsin (θ '+arcsin ((sin α)/L))); In the time of β '=90 °, while being also α=arcsin (Lsin (arcsin (1/L)-θ ')), the incident ray of the critical angle that the refracted ray of the incident ray of this angle is prism; Wherein, α is incidence angle, the refraction angle that β is incidence angle, and β ' is the angle of emergence, the incidence angle that α ' is the angle of emergence, sin is SIN function, arcsin is arcsin function, the refractive index that L is prism.Simultaneously because the larger emergent ray intensity of the angle of emergence of light is less, and the intensity of the mid portion of the light that LED particle sends is greater than the intensity of both sides, therefore need according to the angle of the angle theta between the outer surface of the wiring board of LED lamp group 2 and the transverse slat 1.2 of lamp body 1, adjust the vertex angle theta of prism ' angle, make the mid portion of the light that the incident ray of critical angle sends at LED particle, thereby obviously subdue shadow region.
In addition, in above-mentioned each embodiment, prism also can be made up of other light transmissive materials.
Claims (3)
1. a dual surface LED cabinet lamp, comprise lamp body (1), two groups of LED lamp groups (2) and cover the surperficial light-passing board (3) of described LED lamp group (2), between the outer surface (2.1) of the wiring board of described LED lamp group (2) and the transverse slat (1.2) of described lamp body (1), having angle; It is characterized in that: described light-passing board (3) is prism, the vertex angle theta between outer surface (3.1) and the inner surface (3.2) of described prism ' be acute angle; The outer surface (3.1) of described prism is parallel with the plate face of the shelf of cupboard or flush described vertex angle theta ' near the header board (1.1) of described lamp body (1).
2. lamp body described in (1) one end is provided with end cap, is provided with shading type inductive switch and normal open switch on described end cap; The positive pole of described LED lamp group is connected with the positive pole of electric pressure converter output, the negative pole of described LED lamp group (2) is connected with the negative electricity of described electric pressure converter by described shading type inductive switch, and the negative pole of described LED lamp group (2) is also connected with the negative electricity of described electric pressure converter by described normal open switch.
3. dual surface LED cabinet lamp according to claim 1, is characterized in that: the two ends of the rear plate (1.3) of described lamp body (1) extend back and form edge (1.4), and described edge (1.4) matches with the shelf of cupboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410154813.6A CN103968299B (en) | 2012-08-21 | 2012-08-21 | Dual surface LED cabinet lamp |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410154813.6A CN103968299B (en) | 2012-08-21 | 2012-08-21 | Dual surface LED cabinet lamp |
| CN201210298633.6A CN102878479B (en) | 2012-08-21 | 2012-08-21 | Double-faced light-emitting diode (LED) cabinet lamp |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210298633.6A Division CN102878479B (en) | 2012-08-21 | 2012-08-21 | Double-faced light-emitting diode (LED) cabinet lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103968299A true CN103968299A (en) | 2014-08-06 |
| CN103968299B CN103968299B (en) | 2016-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410154813.6A Active CN103968299B (en) | 2012-08-21 | 2012-08-21 | Dual surface LED cabinet lamp |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108916713A (en) * | 2018-07-13 | 2018-11-30 | 南宁市博罗姆电器有限公司 | A kind of new clamp lamp |
| KR20220150790A (en) * | 2021-05-04 | 2022-11-11 | 주식회사 쿠스코 | Lighting appartus installed on the panel and Installation method thereof |
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| US20050265019A1 (en) * | 2004-05-26 | 2005-12-01 | Gelcore Llc | LED lighting systems for product display cases |
| CN101514861A (en) * | 2008-02-19 | 2009-08-26 | 三洋电机株式会社 | Showcase |
| CN201561328U (en) * | 2009-06-26 | 2010-08-25 | 唐丹天 | LED point-like outline lamp |
| CN202691821U (en) * | 2012-08-21 | 2013-01-23 | 宁波欧琳厨具有限公司 | Double-sized light emitting diode (LED) cabinet lamp |
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2012
- 2012-08-21 CN CN201410154813.6A patent/CN103968299B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050265019A1 (en) * | 2004-05-26 | 2005-12-01 | Gelcore Llc | LED lighting systems for product display cases |
| CN101514861A (en) * | 2008-02-19 | 2009-08-26 | 三洋电机株式会社 | Showcase |
| CN201561328U (en) * | 2009-06-26 | 2010-08-25 | 唐丹天 | LED point-like outline lamp |
| CN202691821U (en) * | 2012-08-21 | 2013-01-23 | 宁波欧琳厨具有限公司 | Double-sized light emitting diode (LED) cabinet lamp |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108916713A (en) * | 2018-07-13 | 2018-11-30 | 南宁市博罗姆电器有限公司 | A kind of new clamp lamp |
| CN108916713B (en) * | 2018-07-13 | 2023-12-29 | 南宁市博罗姆电器有限公司 | Novel clip lamp |
| KR20220150790A (en) * | 2021-05-04 | 2022-11-11 | 주식회사 쿠스코 | Lighting appartus installed on the panel and Installation method thereof |
| KR102503412B1 (en) | 2021-05-04 | 2023-02-24 | 주식회사 쿠스코 | Lighting appartus installed on the panel and Installation method thereof |
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| CN103968299B (en) | 2016-08-10 |
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