• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    An LED light for promoting plant growth has a multiplicity of LEDs (2) arranged on a circuit board (1) which emit light in the visible range. It has a plurality of rear side of the board (1) arranged mirror (7, 8) which deflects from the back (1b) of the board (1) and from an aluminum body (4) emitted infrared radiation (IR) and in the direction of the visible LED Radiation (VR). The surfaces (5, 6) of the aluminum body (4) extend away from the rear side (1a) of the board (1) and are arranged symmetrically with respect to the board (1) and in each case at an angle of the back side (1b) of the board (FIG. 1). The two mirrors (7, 8) are arranged so that they are inclined to the surfaces (5, 6) of the aluminum body (4). The LED lamp has an increased overall performance by the heat radiation is beneficial to the plants supplied.
    公开号:CH712768A2
    申请号:CH00865/17
    申请日:2017-07-04
    公开日:2018-01-31
    发明作者:Alraun Markus；Natsdazik Peter
    申请人:Quazhar Lightning Company Ag；
    IPC主号:
    专利说明:

    Description TECHNICAL FIELD The invention relates to an LED lamp for stimulating plant growth.
    PRIOR ART LED luminaires are currently in use for stimulating plant growth, for example as large plants in greenhouses for vegetables and flowers as well as for individual plants in a living space. In order to optimally promote plant growth, ie photosynthesis and the growth of leaves and flowers, LEDs are used which radiate in the red and blue regions of the visible spectrum, ie around the wavelength range around 450 or 660 nm. In addition, white LEDs are also added used to cover the remaining visible spectrum.
    Although LEDs are considered to be energy efficient in comparison to previous lighting systems, the energy consumption is still a crucial factor for the economy of a greenhouse, especially for large-scale installations. It is therefore an object of the present invention to provide an LED luminaire whose power efficiency is improved in comparison with LED luminaires of the prior art.
    DESCRIPTION OF THE INVENTION The stated object is achieved by an LED luminaire according to claim 1.
    An LED lamp for promoting plant growth has a plurality of LEDs and a power supply for the operation of the LEDs, with their visible LED radiation radiating away from the front of the board in a directional range.
    According to the invention, the LED light on an aluminum body to which the circuit board is connected, and first mirror, which are arranged on the back side of the board, wherein the mirrors are dimensioned and aligned so that from the back of the board and emitted by the aluminum body infrared radiation is deflected into a directional range, which coincides with the direction of the visible radiation of the LEDs.
    Infrared radiation is emitted both from the board and from the aluminum body, which absorbs heat as it physically connects to the board. The infrared radiation radiating from the board and the aluminum body is deflected by the first mirrors so that it is directed forward in a direction substantially parallel to the board and then in the direction of the visible radiation.
    The inventive LED light causes not only a promotion of plant growth due to the visible LED radiation in the red and blue visible wavelength range but at the same time a heat radiation due to the deflected infrared radiation. The infrared radiation, which radiates from the back of the board and would not directly reach the plants without a mirror system, is now directed by the inventive mirror system forward in the direction of the plants. The overall performance of the LED light is increased by the targeted and beneficial orientation of the infrared radiation. Specifically, the power of an LED in the form of infrared radiation is about 40% of the total power, while 60% of the total power is delivered in the form of visible radiation. Due to the deflection of the infrared radiation, therefore, a considerable proportion of power is used profitably. The economy of a greenhouse with the inventive LED light can thus be increased by the heating effort can be reduced accordingly.
    In one embodiment, the first mirrors are arranged in pairs and with respect to the center of the board symmetrical to each other and each at an angle to the board. This is particularly advantageous for the mechanical design of the lamp.
    In a further embodiment, the aluminum body on two surfaces extending away from the center of the back of the board and arranged symmetrically to each other with respect to the board and each of the back of the board are inclined at an angle. By this arrangement, the deflection of the infrared radiation is optimized in particular.
    In a further embodiment, the two surfaces of the aluminum body on second mirror. Here, surfaces of the first mirror are arranged so that their mirror surfaces are inclined to the mirror surfaces of the second mirror. As a result, infrared radiation, which radiates from the back of the board directly to the rear, is directed from the second mirrors to the first mirrors. The first mirrors direct the infrared radiation in a direction substantially at right angles to the front of the board forward. It finally radiates forward and in the same direction as the visible radiation of the LEDs. As a result, the infrared radiation that radiates from the back of the board in an angular range around the vertical of the back, after two reflections forward and in an angular range around the vertical to the front of the board and so in the same direction as the visible range of the LEDs. This achieves a further optimization of the deflection of the infrared radiation and energy efficiency of the LED light.
    In one embodiment of the invention, the mirror mirror surfaces with aluminum. Aluminum reflects infrared radiation in a wide infrared range, but especially in the wavelength range of 650 to 900 nm. This is the wavelength range of the infrared radiation from the board, which is particularly conducive to plant growth.
    In a further particular embodiment of the invention, the mirror mirror surfaces with aluminum and with a thin film to further increase the reflectivity in the range of 650 to 900 nm.
    In one embodiment of the invention, the housing of the power supply of the LED light is arranged on the rear side of the board on the aluminum body, wherein the power supply to a web on which the mirror and the aluminum body are mounted, is arranged.
    In one embodiment of the invention, the first two mirrors are arranged at an angle to the board. Depending on the geometric design and dimensioning of the board and the aluminum body, this angle can be adjusted accordingly to optimize the deflection of the infrared radiation to the front.
    In an exemplary embodiment of the invention, the surfaces of the aluminum body are arranged at an angle of about 45 ° to the board, wherein the first mirror are inclined to the surfaces of the aluminum body at an angle of for example 90 °. Depending on the dimensions of the board and its housing, these angles can be adjusted to effect the deflection of the radiation to the front.
    In a further particular embodiment of the invention, the mirror mirror surfaces with silver.
    Further advantages of the invention follow from the dependent claims and from the following description in which the invention with reference to an embodiment shown in the schematic drawings is explained in more detail. It shows:
    Short description of the figures [0018]
    Fig. 1 shows a cross section of an inventive LED lamp with LEDs on a board and rear-mounted mirrors.
    In the figures, the same reference numerals have been used for the same elements and first explanations apply to all figures, unless expressly stated otherwise.
    EXEMPLARY EMBODIMENTS OF THE INVENTION The LED luminaire according to the invention has a multiplicity of LEDs, which are arranged, for example, in a row on an elongated circuit board, the associated mirror surfaces and surfaces of the aluminum body also being realized in long rectangular shapes which are parallel to the LED Aligned. In Fig. 1, such an example is shown schematically in cross section. There, an LED light L is shown with a circuit board 1, on the front side 1a of an LED 2 is arranged. The LED 2 is operated by a power supply 3. The visible radiation VR of the LED 2 is shown schematically and by way of example by the dashed lines in an angular range from the front of the board. This radiation is in the visible wavelength range, preferably in particular in the red and blue regions, in particular in the region around 450 nm and 660 nm, which according to experience is advantageous for plant growth. The housing of the circuit board 1 forms the back 1b of the board and consists for example of aluminum. The aluminum body 4 is in communication with the board and absorbs the heat of the board and emits corresponding infrared radiation. On the back of the board 1, two mirrors 7,8 are arranged, which are arranged in pairs symmetrically to the board and serves to deflect the heat radiation IR, which emanates from the back side 1b of the board and the symmetrically designed aluminum body 4 with surfaces 5, 6, so that this heat radiation is directed towards the front of the board in the same direction as the visible radiation of the LED. The two first surfaces of the aluminum body 5 and 6 are disposed directly on the back side of the board 1b, both of which are arranged symmetrically with respect to the center of the board 1. Their surfaces 5 and 6 are each inclined at an angle oc to the back 1b of the board 1. The surfaces 5,6 surfaces of the aluminum body may be, for example, of black color. The heat radiation IR from these surfaces is deflected by the mirrors 7, 8 forward in the direction of the visible radiation VR. The surfaces 5, 6 of the aluminum body 4 can also each have a mirror surface, whereby the heat radiation IR deflect from the board 1 in the direction of the visible radiation VR, as indicated by dashed lines. The two mirrors 7 and 8 are also arranged symmetrically with respect to the circuit board 1. Their mirror surfaces 7 and 8 are inclined at an angle to the first two mirror surfaces 5 and 6, respectively. Through these mirrors 7 and 8, the infrared radiation is deflected forward and in a direction perpendicular to the front of the board 1, so that it coincides with the direction of the visible LED radiation. Thus, the heat radiation is directed as it were the visible radiation on the plants P.
    The dashed lines radiation paths are to be seen as exemplary radiation paths. Both the LED 2 and the back of the circuit board 1 b emit each in an angle cone, each of which lies around the marked radiation paths as an optical axis.
    权利要求:
    Claims (9)
    [1]
    The mirrors 7, 8 are fixed to a web 9, which is made of metal. The power supply 3 is arranged in the example shown on the back of the board 1, wherein it is attached to the web 9 for the mirror 7, 8. Conveniently, the LED lamp is realized with a large length, for example of 1 meter, and a plurality of arranged in a row LEDs, the mirrors and surfaces of the aluminum body are arranged as elongated rectangular shapes at given angles to the board similar to a house roof , When used in a large-scale plant such as a greenhouse, the LED lights are mounted in one or more rows over Pflanztrögen. REFERENCE SIGNS LIST 1 circuit board 1a front board 1b back board 2 LED 3 power supply 4 aluminum housing 5 surface of the housing, 5a mirror surface 6 surface of the housing 6a mirror surface 7 mirror 8 mirror 9 - 10 - L LED lamp P plants claims
    1. An LED lamp (L) for the promotion of plant growth comprises a plurality of LEDs (2) which are arranged on a circuit board (1), wherein the visible radiation (VR) of the LED (2) from the front ( 1a) of the board (1) radiates away in a directional range and the LED light (L) has a power supply (3) for the operation of the LEDs (2), characterized in that the LED light (L) one with the board (1) connected aluminum body (4) and first mirror (7, 8), which are arranged on the rear side of the board (1), wherein the mirrors (7, 8) are dimensioned and aligned so that from the back of the board (1 ) and infrared radiation (IR) emitted by the aluminum body (4) is deflected into a directional range which coincides with the directional range of the visible radiation (VR) of the LEDs (2).
    [2]
    2. LED lamp (L) according to claim 1, characterized in that the first mirror (7, 8) in pairs and with respect to the center of the board (1) symmetrically to one another and in each case at an angle to the board (1) are arranged.
    [3]
    3. LED light (L) according to claim 2, characterized in that the aluminum body (4) has two surfaces (5, 6) extending away from the center of the back of the board (1) and with respect to the center of the board ( 1) are arranged symmetrically to each other and each of the back of the board (1) are inclined at an angle.
    [4]
    4. LED lamp (L) according to claim 3, characterized in that the two surfaces (5, 6) of the aluminum body (4) second mirror (5a, 6a) and the surfaces of the first mirror (7, 8) the second mirrors (5a, 6a) are inclined.
    [5]
    5. LED lamp (L) according to any one of claims 1-4, characterized in that the mirrors (5a, 6a, 7, 8) have mirror surfaces with aluminum.
    [6]
    6. LED lamp (L) according to claim 5, characterized in that the mirrors (5a, 6a, 7, 8) have mirror surfaces with aluminum and a thin film to increase the reflectivity in the range of 650 to 900 nm.
    [7]
    7. LED light (L) according to any one of the preceding claims, characterized in that the housing of the power supply (3) of the LED light (L) is arranged on the back side of the board (1) and the power supply to a web for fixing the first mirror (7, 8) is arranged.
    [8]
    8. LED lamp (L) according to claim 5, characterized in that the surfaces (5, 6) of the aluminum body (4) are arranged at an angle of approximately 45 ° to the board (1).
    [9]
    9. LED lamp (L) according to one of the preceding claims, characterized in that the mirrors (5a, 6a, 7, 8) have mirror surfaces with silver.
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    同族专利:
    公开号 | 公开日
    EP3275306A1|2018-01-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20080148630A1|2006-12-20|2008-06-26|Institute For Technology Development|Methods and systems for growing plants using diffuse scattering illumination|
    JP2009125007A|2007-11-25|2009-06-11|Seiichi Okazaki|Method for raising, method for production, and lighting apparatus|
    US8714774B2|2011-09-08|2014-05-06|GE Lighting Solutions, LLC|Light emitting diode light fixture for a greenhouse and a greenhouse incorporating a LED light fixture|
    法律状态:
    2020-08-14| PUE| Assignment|Owner name: REINHARD LANGE, CH Free format text: FORMER OWNER: QUAZHAR LIGHTNING COMPANY AG, CH |
    2020-10-15| AZW| Rejection (application)|
    优先权:
    申请号 | 申请日 | 专利标题
    CH9842016|2016-07-28|
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