JP6650009B1 - LED bulbs for plant growth - Google Patents
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- 230000008635 plant growth Effects 0.000 title claims description 5
- 239000000758 substrate Substances 0.000 claims abstract description 18
- 230000001678 irradiating effect Effects 0.000 claims abstract description 11
- 230000000295 complement effect Effects 0.000 claims description 43
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 238000010586 diagram Methods 0.000 abstract description 3
- 239000003086 colorant Substances 0.000 abstract description 2
- 239000003990 capacitor Substances 0.000 description 5
- 238000009499 grossing Methods 0.000 description 3
- 238000009313 farming Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- 238000003898 horticulture Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000004936 stimulating effect Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
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Abstract
【課題】現実の外光の照度に対応してＬＥＤから照射される光の色を使い分けすることのできる植物育成用ＬＥＤ電球を提供する。【解決手段】植物に育成光を提供する複数のＬＥＤチップ１０が配置された基板１と、複数のＬＥＤチップ１０を点灯させる点灯回路２０が基体部２内に設けられ、基体部２の前方にはグローブ３が取付けられ、後方には点灯回路２０と電気的に接続された口金４が取付けられ、複数のＬＥＤチップ１０は、赤色ＬＥＤを照射する複数の赤色ＬＥＤ１１と、白色ＬＥＤを照射する複数の白色発光用ＬＥＤ１２を有し、外光を取り入れる光取入口３０と、外光の照度を検知するセンサー３１と、センサー３１の検知した照度が第一所定値を超えるときには複数の赤色ＬＥＤ１１を点灯しかつ複数の白色発光用ＬＥＤ１２を消灯し、第一所定値以下になると複数の赤色ＬＥＤ１１を消灯しかつ複数の白色発光用ＬＥＤ１２を点灯する切替え手段４０を備える。【選択図】図１An object of the present invention is to provide an LED light bulb for growing plants, which can selectively use colors of light emitted from LEDs in accordance with the illuminance of actual external light. A substrate (1) on which a plurality of LED chips (10) for providing growing light to plants are arranged and a lighting circuit (20) for lighting the plurality of LED chips (10) are provided in a base (2). A globe 3 is attached, a base 4 electrically connected to a lighting circuit 20 is attached to the rear, and a plurality of LED chips 10 includes a plurality of red LEDs 11 for irradiating a red LED and a plurality of LEDs for irradiating a white LED. A light inlet 30 for taking in external light, a sensor 31 for detecting the illuminance of the external light, and a plurality of red LEDs 11 when the illuminance detected by the sensor 31 exceeds a first predetermined value. Switching means 4 for turning off the plurality of white light-emitting LEDs 12 and turning off the plurality of red LEDs 11 and turning on the plurality of white light-emitting LEDs 12 when the number of white light-emitting LEDs 12 becomes equal to or less than a first predetermined value. Equipped with a. [Selection diagram] Fig. 1
Description
本発明は、園芸や農業用植物のために育成光を提供する植物育成用ＬＥＤ電球に関するものである。 The present invention relates to a plant growing LED bulb that provides growing light for horticultural and agricultural plants.
近年、植物の生長を促すために赤色の光が有効であることがわかり、園芸や農業用植物のために赤色ＬＥＤが利用されている（例えば、特許文献１，２参照）。特に、日照不足の場合には、赤色ＬＥＤを植物に照射することは有効的である。 In recent years, it has been found that red light is effective for promoting plant growth, and red LEDs are used for horticulture and agricultural plants (for example, see Patent Documents 1 and 2). In particular, when there is insufficient sunshine, it is effective to irradiate the plant with a red LED.
特許文献１に記載の発明は、近赤外及び可視光による植物の育成及び発育の刺激方法及び装置に関するものであり、特許文献１の表３に記載されたように、時間毎に複数種類のＬＥＤをオンオフするタイミングを変化させたものである。
また、特許文献２に記載の発明は、植物育成システムに関するものであり、植物育成建屋内に作業者が入退場したことを検知して、入場したときに白色のＬＥＤに電力を供給して白色ＬＥＤを照射するようにしたものである。
The invention described in Patent Literature 1 relates to a method and an apparatus for stimulating the growth and development of plants by near-infrared light and visible light. As described in Table 3 of Patent Literature 1, a plurality of types of The timing at which the LED is turned on and off is changed.
Also, the invention described in Patent Document 2 relates to a plant growing system, which detects that an operator has entered or exited the plant growing building, and supplies power to a white LED when entering to enter the plant growing building. The LED is illuminated.
しかしながら、特許文献１に記載の発明のように、時間毎に複数種類のＬＥＤをオンオフさせるものでは、太陽光の照度は天候や季節によっても異なるため時間毎にＬＥＤを切り替えるものでは植物の生長を促すために赤色の光を有効的に照射するものではない。
また、特許文献２に記載の発明のように、作業者の入場時に白色ＬＥＤを照射するものでは、太陽光の照度が高く白色ＬＥＤを照射する必要がない場合もある。そのような場合に、白色ＬＥＤを照射することは省エネルギーに反するものである。
However, as in the invention described in Patent Literature 1, when a plurality of types of LEDs are turned on / off at each time, the illuminance of sunlight changes depending on the weather and the season. It does not effectively emit red light to encourage it.
Further, in the case of irradiating a white LED when a worker enters, as in the invention described in Patent Document 2, the illuminance of sunlight is so high that it is not necessary to irradiate the white LED. In such a case, irradiating the white LED is against energy saving.
すなわち、太陽光を含む外光の照度に対応してＬＥＤを照射させる必要がある。
例えば、太陽光が明るい時は、赤色ＬＥＤの発光と太陽光によって、農作業は可能であるが、夕方以降暗くなると、赤色ＬＥＤだけでは暗くなってしまい農作業ができないため、別の明るい光源が必要になってくる。
That is, it is necessary to irradiate the LED in accordance with the illuminance of external light including sunlight.
For example, when the sunlight is bright, farming work is possible by the emission of the red LED and sunlight, but when it gets dark after evening, the red LED alone becomes darker and farming is not possible, so another bright light source is needed. It is becoming.
そこで、本発明の目的とするところは、現実の外光の照度に対応してＬＥＤから照射される光の色を使い分けすることのできる植物育成用ＬＥＤ電球を提供することにある。 Accordingly, it is an object of the present invention to provide a plant growing LED bulb that can selectively use the color of light emitted from an LED according to the actual illuminance of external light.
上記の目的を達成するために、本発明の植物育成用ＬＥＤ電球は、植物に育成光を提供する複数のＬＥＤチップ（１０）が配置された基板（１）と、前記複数のＬＥＤチップ（１０）を点灯させる点灯回路（２０）が基体部（２）内に設けられ、前記基体部（２）の前方には、前記基板（１）を複数のＬＥＤチップ（１０）とともに覆う（ドーム状に突出した）グローブ（３）が取付けられ、前記基体部（２）の後方には、前記点灯回路（２０）と電気的に接続された口金（４）が取付けられた植物育成用ＬＥＤ電球（１００）であって、
前記複数のＬＥＤチップ（１０）は、赤色ＬＥＤを照射する複数の赤色ＬＥＤ（１１）と、白色ＬＥＤを照射する複数の白色発光用ＬＥＤ（１２）を有し、
外光を取り入れる光取入口（３０）と、
前記光取入口（３０）から取り入れられた外光の照度を検知するセンサー（３１）と、
前記センサー（３１）の検知した照度が第一所定値（３０ルクス）を超えるときには、前記複数の赤色ＬＥＤ（１１）を点灯するとともに前記複数の白色発光用ＬＥＤ（１２）を消灯し、前記第一所定値（３０ルクス）以下になると、前記複数の赤色ＬＥＤ（１１）を消灯するとともに前記複数の白色発光用ＬＥＤ（１２）を点灯する切替え手段（４０）を備えることを特徴とする。
In order to achieve the above object, an LED bulb for growing plants according to the present invention comprises: a substrate (1) on which a plurality of LED chips (10) for providing growing light to plants are arranged; A lighting circuit (20) for lighting (1) is provided in the base (2), and the substrate (1) is covered with a plurality of LED chips (10) in front of the base (2) (in a dome shape). A protruding globe (3) is attached, and a base (4) electrically connected to the lighting circuit (20) is attached to the rear of the base (2). )
The plurality of LED chips (10) include a plurality of red LEDs (11) for irradiating a red LED and a plurality of white light emitting LEDs (12) for irradiating a white LED,
A light inlet (30) for taking in external light,
A sensor (31) for detecting the illuminance of external light introduced from the light inlet (30);
When the illuminance detected by the sensor (31) exceeds a first predetermined value (30 lux), the plurality of red LEDs (11) are turned on, and the plurality of white light emitting LEDs (12) are turned off. Switching means (40) for turning off the plurality of red LEDs (11) and turning on the plurality of white light emitting LEDs (12) when the predetermined value (30 lux) or less is obtained is provided.
また、請求項２に記載の発明は、前記基板は、前記複数の赤色ＬＥＤ（１１）が配置された第一領域（Ｘ）と、前記複数の白色発光用ＬＥＤ（１２）が配置された第二領域（Ｙ）を有し、
前記第一領域（Ｘ）における前記複数の赤色ＬＥＤ（１１）の中に、白色ＬＥＤを照射し、前記複数の赤色ＬＥＤ（１１）より個数の少ない補完白色発光用ＬＥＤ（１３）を点在させ、
前記切替え手段（４０）は、前記複数の赤色ＬＥＤ（１１）と同時に前記補完白色発光用ＬＥＤ（１３）を点灯させ、前記複数の赤色ＬＥＤ（１１）と同時に前記補完白色発光用ＬＥＤ（１３）を消灯させることを特徴とする。
In the invention described in claim 2, the substrate has a first region (X) in which the plurality of red LEDs (11) are arranged and a second region in which the plurality of white LEDs (12) are arranged. Having two regions (Y),
A white LED is irradiated to the plurality of red LEDs (11) in the first region (X), and a smaller number of complementary white light emitting LEDs (13) than the plurality of red LEDs (11) are scattered. ,
The switching means (40) turns on the complementary white light emitting LED (13) at the same time as the plurality of red LEDs (11), and the complementary white light emitting LED (13) at the same time as the plurality of red LEDs (11). Is turned off.
また、請求項３に記載の発明は、前記基板は、前記複数の赤色ＬＥＤ（１１）が配置された第一領域（Ｘ）と、前記複数の白色発光用ＬＥＤ（１２）が配置された第二領域（Ｙ）を有し、
前記第一領域（Ｘ）における前記複数の赤色ＬＥＤ（１１）の中に、白色ＬＥＤを照射し、前記複数の赤色ＬＥＤ（１１）より個数の少ない補完白色発光用ＬＥＤ（１３）を点在させ、
前記切替え手段（４０）は、前記センサー（３１）の検知した照度が前記第一所定値（３０ルクス）を超えた第二所定値（４０ルクス）を超えた場合にだけ、前記複数の赤色ＬＥＤ（１１）と同時に前記補完白色発光用ＬＥＤ（１３）を点灯させ、前記第二所定値以下（４０ルクス）では前記補完白色発光用ＬＥＤ（１３）を消灯させることを特徴とする。
Also, in the invention according to claim 3, the substrate has a first region (X) in which the plurality of red LEDs (11) are arranged and a first region (X) in which the plurality of white light emitting LEDs (12) are arranged. Having two regions (Y),
A white LED is irradiated to the plurality of red LEDs (11) in the first region (X), and a smaller number of complementary white light emitting LEDs (13) than the plurality of red LEDs (11) are scattered. ,
Only when the illuminance detected by the sensor (31) exceeds a second predetermined value (40 lux) exceeding the first predetermined value (30 lux), the switching means (40) sets the plurality of red LEDs. (11) At the same time, the complementary white light emitting LED (13) is turned on, and the complementary white light emitting LED (13) is turned off at the second predetermined value or less (40 lux).
また、請求項４に記載の発明は、前記複数の赤色ＬＥＤ（１１）の個数と前記補完白色発光用ＬＥＤ（１３）の個数の比率を２対１以下にしたことを特徴とする。 The invention according to claim 4 is characterized in that the ratio of the number of the plurality of red LEDs (11) to the number of the complementary white light emitting LEDs (13) is 2: 1 or less.
また、請求項５に記載の発明は、前記白色発光用ＬＥＤ（１２）と前記補完白色発光用（１３）ＬＥＤは、青色ＬＥＤに蛍光剤が塗布され白色ＬＥＤを照射するようにしたものであることを特徴とする。 According to a fifth aspect of the present invention, in the white light emitting LED (12) and the complementary white light emitting (13) LED, a blue LED is coated with a fluorescent agent to irradiate the white LED. It is characterized by the following.
なお、上記括弧内の記号は、図面および後述する発明を実施するための形態に掲載された対応要素または対応事項を示す。 The symbols in the parentheses indicate corresponding elements or matters described in the drawings and the embodiments for carrying out the invention described later.
本発明の植物育成用ＬＥＤ電球によれば、光取入口から取り入れられた外光の照度を検知するセンサーを有し、切替え手段を介して、センサーが検知した照度が第一所定値を超えるときには、複数の赤色ＬＥＤを点灯するとともに複数の白色発光用ＬＥＤを消灯するので、例えば、太陽光の明るいときに複数の赤色ＬＥＤを点灯して太陽光に加えて赤色ＬＥＤを照射することで植物を効果的に育成させることができる。
そして、センサーが検知した照度が第一所定値以下になると、複数の赤色ＬＥＤを消灯するとともに複数の白色発光用ＬＥＤを点灯するので、例えば、夕方など太陽光が暗くなると、あるいは日中であっても雨や曇りなどで太陽光が暗くなると自動的に複数の白色発光用ＬＥＤが点灯して周りを明るくする。よって、夕方から夜間にかけて、あるいは日中でも太陽光の暗いときであっても明るい雰囲気で農作業などを行うことができる。
According to the LED light bulb for growing plants of the present invention, it has a sensor for detecting the illuminance of the external light taken in from the light inlet , via the switching means, when the illuminance detected by the sensor exceeds a first predetermined value Since the plurality of red LEDs are turned on and the plurality of white light emitting LEDs are turned off, for example, when the sun is bright, the plurality of red LEDs are turned on and the plant is irradiated with the red LEDs in addition to the sunlight. It can be raised effectively.
When the illuminance detected by the sensor is equal to or less than the first predetermined value, the plurality of red LEDs are turned off and the plurality of white light-emitting LEDs are turned on. Even when the sunlight becomes dark due to rain or cloudiness, a plurality of white light emitting LEDs are automatically turned on to brighten the surroundings. Therefore, farm work and the like can be performed in a bright atmosphere from the evening to the night, or in the daytime even when the sunlight is dark.
このように、本発明によれば、現実の外光の照度に対応してＬＥＤから照射される光の色を使い分けすることができるので、効率的で経済的にも有利である。
また、複数のＬＥＤチップやセンサーや切替え手段は、一つの電球の中に設けられているためコストを抑えることができるとともに、設置も極めて容易で大規模な装置を必要としない。
As described above, according to the present invention, the colors of the light emitted from the LEDs can be selectively used in accordance with the actual illuminance of the external light, which is efficient and economically advantageous.
In addition, since a plurality of LED chips, sensors, and switching means are provided in one light bulb, the cost can be reduced, and the installation is extremely easy and a large-scale device is not required.
また、本発明によれば、基板を、複数の赤色ＬＥＤが配置された第一領域と、複数の白色発光用ＬＥＤが配置された第二領域に分けているので、オンオフ（点灯及び消灯）の切替えを簡単に行うことができる。
また、第一領域における複数の赤色ＬＥＤの中には、白色ＬＥＤを照射し、複数の赤色ＬＥＤより個数の少ない補完白色発光用ＬＥＤを点在させていて、複数の赤色ＬＥＤと同時に補完白色発光用ＬＥＤを点灯させ、複数の赤色ＬＥＤと同時に補完白色発光用ＬＥＤを消灯させるようにしているので、複数の赤色ＬＥＤと同時に補完白色発光用ＬＥＤを点灯させたときには全体としてピンク色の光となる。
特に、太陽光が明るいときに複数の赤色ＬＥＤだけが点灯している場合には、赤発光が作業者に不快感を与えることがあるが、この場合にはピンク色の光としたので作業者の負担を減らすことができる。
Further, according to the present invention, the substrate is divided into a first region in which a plurality of red LEDs are arranged and a second region in which a plurality of white light emitting LEDs are arranged. Switching can be easily performed.
Further, among the plurality of red LEDs in the first area, white LEDs are illuminated, and a smaller number of complementary white light emitting LEDs are scattered than the plurality of red LEDs. When the complementary white light emitting LED is turned on simultaneously with the plurality of red LEDs, the complementary white light emitting LED is turned on at the same time as the plurality of red LEDs. .
In particular, when only a plurality of red LEDs are lit when the sunlight is bright, red light emission may give a worker an unpleasant feeling. Burden can be reduced.
また、本発明によれば、切替え手段は、センサーの検知した照度が第一所定値を超えた第二所定値を超えた場合にだけ、複数の赤色ＬＥＤと同時に補完白色発光用ＬＥＤを点灯させ、第二所定値以下では補完白色発光用ＬＥＤを消灯させるようにしたので、太陽光などの外光が特に明るいときにだけピンク色の光とすることができる。
なお、複数の赤色ＬＥＤの個数と補完白色発光用ＬＥＤの個数の比率を２対１以下にすることが好ましい。
Further, according to the present invention, only when the illuminance detected by the sensor exceeds a second predetermined value that exceeds the first predetermined value, the switching unit turns on the complementary white light emitting LED simultaneously with the plurality of red LEDs. Since the complementary white light emitting LED is turned off when the value is equal to or less than the second predetermined value, pink light can be emitted only when external light such as sunlight is particularly bright.
It is preferable that the ratio of the number of the plurality of red LEDs and the number of the complementary white light emitting LEDs be 2: 1 or less.
また、本発明によれば、白色発光用ＬＥＤと補完白色発光用ＬＥＤは、青色ＬＥＤに蛍光剤が塗布され白色ＬＥＤを照射するようにしたものであるので、簡易な構成とすることができる。 Further, according to the present invention, since the white light emitting LED and the complementary white light emitting LED are formed by applying a fluorescent agent to a blue LED and irradiating the white LED, a simple configuration can be achieved.
なお、本発明の植物育成用ＬＥＤ電球のように、外光の照度に対応して植物に照射する光の色を変化させるようにしたものは、上述した特許文献１，２には全く記載されていない。 Note that, such as the plant-growing LED bulb of the present invention, which changes the color of light applied to plants in accordance with the illuminance of external light, is completely described in Patent Documents 1 and 2 described above. Not.
図面を参照して、本発明の実施形態に係る植物育成用ＬＥＤ電球１００について説明する。
この植物育成用ＬＥＤ電球１００は、太陽光に加えてＬＥＤからの光を植物に対する育成光として提供するものであり、図１に示すように、ラッパ状の基体部２の前方にグローブ３が取付けられ、基体部２の後方に口金４が取付けられている。
An LED bulb 100 for growing plants according to an embodiment of the present invention will be described with reference to the drawings.
The plant growing LED bulb 100 provides light from the LED as growing light for plants in addition to sunlight, and a globe 3 is attached in front of a trumpet-shaped base 2 as shown in FIG. A base 4 is attached to the rear of the base 2.
基体部２内には、図２に示すような、複数のＬＥＤチップ１０が配置された基板１と、図３及び図４に示すような、複数のＬＥＤチップ１０を点灯させる点灯回路２０が設けられている。
基体部２の側面には外光を取り入れる光取入口３０が設けられている。
グローブ３は、前方に向かってドーム状に突出していて、基板１を複数のＬＥＤチップ１０とともに覆っている。
口金４は、点灯回路２０と電気的に接続されていて、図示しないソケットに嵌め込まれるようになっている。
In the base portion 2, a substrate 1 on which a plurality of LED chips 10 are arranged as shown in FIG. 2 and a lighting circuit 20 for lighting the plurality of LED chips 10 as shown in FIGS. 3 and 4 are provided. Have been.
A light inlet 30 for taking in external light is provided on a side surface of the base 2.
The globe 3 protrudes forward in a dome shape, and covers the substrate 1 together with the plurality of LED chips 10.
The base 4 is electrically connected to the lighting circuit 20 and is fitted in a socket (not shown).
複数のＬＥＤチップ１０は、赤色ＬＥＤを照射する複数の赤色ＬＥＤ１１と、白色ＬＥＤを照射する複数の白色発光用ＬＥＤ１２を有している。白色発光用ＬＥＤ１２は、青色ＬＥＤに蛍光剤を塗布することによって白色ＬＥＤが照射されるようにしたものである。
複数の赤色ＬＥＤ１１は、図２に示すように、基板１の略半分を占める第一領域Ｘの表面に配置され、白色発光用ＬＥＤ１２は、基板１の残り略半分を占める第二領域Ｙの表面に配置されている。また、第一領域Ｘにおいて、複数の赤色ＬＥＤ１１の中には、白色ＬＥＤを照射する補完白色発光用ＬＥＤ１３を点在させていて、補完白色発光用ＬＥＤ１３の個数は複数の赤色ＬＥＤ１１より個数よりも少なくしている。
The plurality of LED chips 10 include a plurality of red LEDs 11 that irradiate a red LED and a plurality of white light emitting LEDs 12 that irradiate a white LED. The white light emitting LED 12 is configured so that a white LED is irradiated by applying a fluorescent agent to a blue LED.
As shown in FIG. 2, the plurality of red LEDs 11 are arranged on the surface of the first region X occupying substantially half of the substrate 1, and the white light emitting LEDs 12 are arranged on the surface of the second region Y occupying substantially the other half of the substrate 1. Are located in In the first region X, among the plurality of red LEDs 11, the complementary white light emitting LEDs 13 for irradiating white LEDs are interspersed, and the number of the complementary white light emitting LEDs 13 is larger than the number of the plurality of red LEDs 11. I have less.
図２では、補完白色発光用ＬＥＤ１３を斜線で示した。ここでは、５０個の赤色ＬＥＤ１１と５個の補完白色発光用ＬＥＤ１３、計５５個のＬＥＤ１１，１２を第一領域Ｘに配置し、６０個の白色発光用ＬＥＤ１２を第二領域Ｙに配置している。
なお、赤色ＬＥＤ１１の発光波長としては、６２０〜６７０nmのものを使用し、白色発光用ＬＥＤ１２及び補完白色発光用ＬＥＤ１３の発光波長としては、４５０〜４８０nmのものを使用した。
In FIG. 2, the complementary white light emitting LED 13 is indicated by oblique lines. Here, 50 red LEDs 11 and 5 complementary white light emitting LEDs 13, a total of 55 LEDs 11 and 12, are arranged in the first area X, and 60 white light emitting LEDs 12 are arranged in the second area Y. I have.
The emission wavelength of the red LED 11 was 620 to 670 nm, and the emission wavelength of the white light emitting LED 12 and the complementary white light emitting LED 13 was 450 to 480 nm.
また、基板１には、光取入口３０から取り入れられた外光の照度を検知するセンサー３１や、ＦＥＴ３２，３３や、ホトカプラ３４や、ダイオードブリッジ３５や、定電流回路３６や、その他、各種抵抗，コンデンサ，ゼナーダイオード，ヒューズなどが配置されている。 The substrate 1 also includes a sensor 31 for detecting the illuminance of external light introduced from the light inlet 30, FETs 32 and 33, a photocoupler 34, a diode bridge 35, a constant current circuit 36, and various other resistors. , Capacitors, zener diodes, fuses, etc. are arranged.
点灯回路２０は、図３に示すような、植物育成用ＬＥＤ電球１００に電源を供給する回路と、図４に示すような、複数のＬＥＤチップ１０のオンオフを制御する回路からなる。
電源を供給する回路は、１００Ｖの交流電源２１に安全ヒューズ２２を介して接続されたダイオードブリッジ３５で交流を直流に変換した後、直流を平滑する平滑コンデンサ２３と定電流回路３６によって一定の直流電流を、図４に示すように、複数のＬＥＤチップ１０に対して供給している。また、定電流回路３６に入力される前の直流電流を、制限抵抗２４を介してセンサー３１と、ホトカプラ３４のトランジスタに供給している。
The lighting circuit 20 includes a circuit for supplying power to the plant growing LED bulb 100 as shown in FIG. 3 and a circuit for controlling on / off of the plurality of LED chips 10 as shown in FIG.
The circuit for supplying power is configured such that a diode bridge 35 connected to a 100 V AC power supply 21 via a safety fuse 22 converts AC to DC, and then a constant DC circuit is provided by a smoothing capacitor 23 for smoothing the DC and a constant current circuit 36. The current is supplied to the plurality of LED chips 10 as shown in FIG. The DC current before being input to the constant current circuit 36 is supplied to the sensor 31 and the transistor of the photocoupler 34 via the limiting resistor 24.
センサー３１は光センサーであり、センサー３１に対してノイズ対策用のコンデンサ２５と、複数の白色発光用ＬＥＤ１２を点灯させるためのＦＥＴ３２を保護するゼナーダイオード２６が並列に設けられている。複数の白色発光用ＬＥＤ１２は直列に接続されている。また、ホトカプラ３４には適切な電流を流すための制限抵抗２７が接続されている。
また、複数の赤色ＬＥＤ１１と補完白色発光用ＬＥＤ１３も直列に接続されていて、これらを点灯させるためのＦＥＴ３３も設けられている。ＦＥＴ３３には、それを保護するゼナーダイオード２８が並列に設けられ、ＦＥＴ３３に適切な電流を流すための制限抵抗２９も設けられている。
The sensor 31 is an optical sensor, and a capacitor 25 for noise suppression and a zener diode 26 for protecting an FET 32 for lighting a plurality of white light emitting LEDs 12 are provided in parallel with the sensor 31. The plurality of white light emitting LEDs 12 are connected in series. The photocoupler 34 is connected to a limiting resistor 27 for flowing an appropriate current.
Further, a plurality of red LEDs 11 and complementary white light emitting LEDs 13 are also connected in series, and an FET 33 for lighting them is also provided. The FET 33 is provided with a zener diode 28 for protecting the FET 33 in parallel, and also provided with a limiting resistor 29 for flowing an appropriate current to the FET 33.
ＦＥＴ３２，３３とホトカプラ３４は、複数のＬＥＤチップ１０のオンオフを切り替える切替え手段４０としてはたらくものであり、太陽光が明るいときは、センサー３１の抵抗値が低く、ＦＥＴ３２はオフ（ＯＦＦ）状態となるので、複数の白色発光用ＬＥＤ１２は点灯しない。また、このときホトカプラ３４の発光側も点灯しないため受光側はオン（ＯＮ）状態とならない。そのため、制限抵抗２９を通った電圧はＦＥＴ３３にかかり、ＦＥＴ３３はオン（ＯＮ）状態となるので、複数の赤色ＬＥＤ１１と補完白色発光用ＬＥＤ１３は点灯する。
すなわち、太陽光が明るいときは、複数の赤色ＬＥＤ１１と補完白色発光用ＬＥＤ１３は点灯し、かつ複数の白色発光用ＬＥＤ１２は点灯しない。
本実施形態では、太陽光が明るいときとは、センサー３１の検知した照度が第一所定値（３０ルクス）を超えるときとした。
The FETs 32 and 33 and the photocoupler 34 function as switching means 40 for switching on and off the plurality of LED chips 10. When the sunlight is bright, the resistance value of the sensor 31 is low, and the FET 32 is turned off (OFF). Therefore, the plurality of white light emitting LEDs 12 do not light. At this time, the light emitting side of the photocoupler 34 is not turned on, so that the light receiving side is not turned on. Therefore, the voltage passing through the limiting resistor 29 is applied to the FET 33, and the FET 33 is turned on (ON), so that the plurality of red LEDs 11 and the complementary white light emitting LEDs 13 are turned on.
That is, when the sunlight is bright, the plurality of red LEDs 11 and the complementary white light emitting LEDs 13 are turned on, and the plurality of white light emitting LEDs 12 are not turned on.
In the present embodiment, when the sunlight is bright, the illuminance detected by the sensor 31 exceeds the first predetermined value (30 lux).
次に、太陽光が暗くなれば、ここでは、センサー３１の検知した照度が第一所定値（３０ルクス）以下になると、センサー３１の抵抗値があがり、ＦＥＴ３２はオン（ＯＮ）状態となるので、複数の白色発光用ＬＥＤ１２が点灯する。また、このときホトカプラ３４の発光側が点灯するので、制限抵抗２９を通った電圧はＦＥＴ３３にかからなくなるので、ＦＥＴ３３はオフ（ＯＦＦ）状態となり、複数の赤色ＬＥＤ１１と補完白色発光用ＬＥＤ１３は消灯する。
すなわち、太陽光が暗いときは、複数の赤色ＬＥＤ１１と補完白色発光用ＬＥＤ１３は消灯し、かつ複数の白色発光用ＬＥＤ１２が点灯する。
Next, when the sunlight becomes dark, here, when the illuminance detected by the sensor 31 becomes equal to or less than the first predetermined value (30 lux), the resistance value of the sensor 31 increases, and the FET 32 is turned on. , The plurality of white light emitting LEDs 12 are turned on. At this time, since the light emitting side of the photocoupler 34 is turned on, the voltage passing through the limiting resistor 29 is not applied to the FET 33, so that the FET 33 is turned off (OFF), and the plurality of red LEDs 11 and the complementary white light emitting LEDs 13 are turned off. .
That is, when the sunlight is dark, the plurality of red LEDs 11 and the complementary white light emitting LEDs 13 are turned off, and the plurality of white light emitting LEDs 12 are turned on.
以上のように構成された植物育成用ＬＥＤ電球１００によれば、光取入口３０から取り入れられた外光の照度を検知するセンサー３１が検知し、その検知した照度が第一所定値（３０ルクス）を超えるときには、切替え手段４０が、複数の赤色ＬＥＤ１１を点灯するとともに複数の白色発光用ＬＥＤ１２を消灯するので、例えば、太陽光の明るいときに複数の赤色ＬＥＤ１１を点灯して太陽光に加えて赤色ＬＥＤを照射することで植物を効果的に育成させることができる。
そして、センサー３１が検知した照度が第一所定値（３０ルクス）以下になると、切替え手段４０は、複数の赤色ＬＥＤ１１を消灯するとともに複数の白色発光用ＬＥＤ１２を点灯するので、例えば、夕方など太陽光が暗くなると、あるいは日中であっても雨や曇りなどで太陽光が暗くなると自動的に複数の白色発光用ＬＥＤ１２が点灯して周りを明るくする。よって、夕方から夜間にかけて、あるいは日中でも太陽光の暗いときであっても明るい雰囲気で農作業などを行うことができる。
According to the plant growing LED bulb 100 configured as described above, the sensor 31 that detects the illuminance of the external light taken in from the light inlet 30 detects the illuminance, and the detected illuminance is equal to the first predetermined value (30 lux). The switching means 40 turns on the plurality of red LEDs 11 and turns off the plurality of white light-emitting LEDs 12 when the number of times exceeds (1). For example, when the sunlight is bright, the plurality of red LEDs 11 are turned on and added to the sunlight. By irradiating the red LED, the plant can be effectively grown.
When the illuminance detected by the sensor 31 becomes equal to or less than the first predetermined value (30 lux), the switching unit 40 turns off the plurality of red LEDs 11 and turns on the plurality of white light-emitting LEDs 12, so that, for example, When the light becomes dark, or when the sunlight becomes dark due to rain or cloudiness during the day, a plurality of white light emitting LEDs 12 are automatically turned on to brighten the surroundings. Therefore, farm work and the like can be performed in a bright atmosphere from the evening to the night, or in the daytime even when the sunlight is dark.
このように、現実の外光の照度に対応してＬＥＤから照射される光の色を赤色から白色に、あるいは白色から赤色に切替えて使い分けすることができるので、効率的で経済的にも有利である。
また、複数のＬＥＤチップやセンサーや切替え手段４０は、一つの電球の中に設けられているためコストを抑えることができるとともに、設置も極めて容易で大規模な装置を必要としない。
As described above, the color of light emitted from the LED can be switched from red to white or from white to red in accordance with the actual illuminance of external light, so that it is efficient and economically advantageous. It is.
In addition, since the plurality of LED chips, the sensors, and the switching means 40 are provided in one light bulb, the cost can be reduced, and the installation is extremely easy and a large-scale device is not required.
また、基板１は、複数の赤色ＬＥＤ１１と複数の補完白色発光用ＬＥＤ１３が配置された第一領域Ｘと、複数の白色発光用ＬＥＤ１２が配置された第二領域Ｙに分けられているので、オンオフ（点灯及び消灯）の切替えを簡単に行うことができる。 Further, the substrate 1 is divided into a first region X in which a plurality of red LEDs 11 and a plurality of complementary white LEDs 13 are arranged, and a second region Y in which a plurality of white LEDs 12 are arranged. (Lighting and extinguishing) can be easily switched.
また、第一領域Ｘにおける複数の赤色ＬＥＤ１１の中には、補完白色発光用ＬＥＤ１３を点在させていて、複数の赤色ＬＥＤ１１と同時に補完白色発光用ＬＥＤ１３を点灯させ、複数の赤色ＬＥＤ１１と同時に補完白色発光用ＬＥＤ１３を消灯させるようにしているので、複数の赤色ＬＥＤ１１と同時に補完白色発光用ＬＥＤ１３を点灯させたときには全体としてピンク色の光とすることができる。
特に、太陽光が明るいときに複数の赤色ＬＥＤ１１だけが点灯している場合には、赤発光が作業者に不快感を与えることがあるが、この場合にはピンク色の光としたので作業者の負担を減らすことができる。なお、複数の赤色ＬＥＤ１１の個数と補完白色発光用ＬＥＤ１３の個数の比率については、２対１以下にすることが好ましい。
Further, among the plurality of red LEDs 11 in the first region X, the complementary white light emitting LEDs 13 are interspersed, and the complementary white light emitting LEDs 13 are turned on simultaneously with the plurality of red LEDs 11 and complemented simultaneously with the plurality of red LEDs 11. Since the white light emitting LED 13 is turned off, when the complementary white light emitting LED 13 is turned on at the same time as the plurality of red LEDs 11, the whole light can be pink light.
In particular, when only a plurality of red LEDs 11 are lit when the sunlight is bright, red light emission may give an unpleasant feeling to the operator. Burden can be reduced. The ratio of the number of the plurality of red LEDs 11 to the number of the complementary white light emitting LEDs 13 is preferably 2: 1 or less.
なお、本実施形態では、切替え手段４０を介して、センサー３１が検知した照度が第一所定値（３０ルクス）を超えるときには、複数の赤色ＬＥＤ１１に加えて複数の補完白色発光用ＬＥＤ１３を点灯し、第一所定値（３０ルクス）以下になると複数の赤色ＬＥＤ１１と複数の補完白色発光用ＬＥＤ１３を同時に消灯するようにしたが、第一所定値（３０ルクス）を超えた第二所定値（例えば、４０ルクス）を閾値として設け、その第二所定値（例えば、４０ルクス）を超えた場合にだけ、複数の赤色ＬＥＤ１１と同時に補完白色発光用ＬＥＤ１３を点灯させ、第二所定値（例えば、４０ルクス）以下では補完白色発光用ＬＥＤ１３だけを消灯させるようにしてもよい。
これによれば、太陽光などの外光が特に明るいときにだけピンク色の光とすることができる。
In the present embodiment, when the illuminance detected by the sensor 31 exceeds the first predetermined value (30 lux) via the switching unit 40, the plurality of complementary white light emitting LEDs 13 in addition to the plurality of red LEDs 11 are turned on. The plurality of red LEDs 11 and the plurality of complementary white light emitting LEDs 13 are turned off at the same time when the value is equal to or less than the first predetermined value (30 lux). However, the second predetermined value exceeding the first predetermined value (30 lux) (for example, , 40 lux) as a threshold value, and only when the value exceeds a second predetermined value (for example, 40 lux), the complementary white light emitting LED 13 is turned on simultaneously with the plurality of red LEDs 11, and a second predetermined value (for example, 40 lux) is provided. Lux) In the following, only the complementary white light emitting LED 13 may be turned off.
According to this, pink light can be obtained only when external light such as sunlight is particularly bright.
また、本実施形態では、図３及び図４に示すような点灯回路２０を使用したが、複数のＬＥＤチップ１０が電源が供給されるとともに、複数のＬＥＤチップ１０のオンオフ制御ができる回路であれば他の回路であってもよい。
また、切替え手段４０としてＦＥＴ３２，３３とホトカプラ３４を使用したが、これにかえて、ＣＰＵを使用してセンサー３１が検知した照度を読み取って複数のＬＥＤチップ１０のオンオフを制御するようにしてもよい。
また、複数の白色発光用ＬＥＤ１２にかえて、複数の青色ＬＥＤを夜間照明として使用して防犯効果を高めるようにすることもできる。
Further, in the present embodiment, the lighting circuit 20 as shown in FIGS. 3 and 4 is used. However, any circuit that can supply power to the plurality of LED chips 10 and control on / off of the plurality of LED chips 10 can be used. Any other circuit may be used.
Further, although the FETs 32 and 33 and the photocoupler 34 are used as the switching means 40, instead of this, the illuminance detected by the sensor 31 may be read using a CPU to control the on / off of the plurality of LED chips 10. Good.
Further, instead of the plurality of white light emitting LEDs 12, a plurality of blue LEDs can be used as nighttime illumination to enhance the security effect.
１ 基板
２ 基体部
３ グローブ
４ 口金
１０ ＬＥＤチップ
１１ 赤色ＬＥＤ
１２ 白色発光用ＬＥＤ
１３ 補完白色発光用ＬＥＤ
２０ 点灯回路
２１ 交流電源
２２ ヒューズ
２３ 平滑コンデンサ
２４ 制限抵抗
２５ コンデンサ
２６ ゼナーダイオード
２７ 制限抵抗
２８ ゼナーダイオード
２９ 制限抵抗
３０ 光取入口
３１ センサー
３２ ＦＥＴ（切替え手段）
３３ ＦＥＴ（切替え手段）
３４ ホトカプラ（切替え手段）
３５ ダイオードブリッジ
３６ 定電流回路
４０ 切替え手段
１００ 植物育成用ＬＥＤ電球
Ｘ 第一領域
Ｙ 第二領域
DESCRIPTION OF SYMBOLS 1 Substrate 2 Base part 3 Globe 4 Base 10 LED chip 11 Red LED
12. White LED
13. Complementary white light emitting LED
Reference Signs List 20 lighting circuit 21 AC power supply 22 fuse 23 smoothing capacitor 24 limiting resistor 25 capacitor 26 zener diode 27 limiting resistor 28 zener diode 29 limiting resistor 30 light inlet 31 sensor 32 FET (switching means)
33 FET (switching means)
34 Photocoupler (switching means)
35 Diode bridge 36 Constant current circuit 40 Switching means 100 Plant growing LED bulb X First area Y Second area
Claims (5)
前記複数のＬＥＤチップは、赤色ＬＥＤを照射する複数の赤色ＬＥＤと、白色ＬＥＤを照射する複数の白色発光用ＬＥＤを有し、
外光を取り入れる光取入口と、
前記光取入口から取り入れられた外光の照度を検知するセンサーと、
前記センサーの検知した照度が第一所定値を超えるときには、前記複数の赤色ＬＥＤを点灯するとともに前記複数の白色発光用ＬＥＤを消灯し、前記第一所定値以下になると、前記複数の赤色ＬＥＤを消灯するとともに前記複数の白色発光用ＬＥＤを点灯する切替え手段を備えることを特徴とする植物育成用ＬＥＤ電球。 A substrate on which a plurality of LED chips for providing growing light are provided to a plant, and a lighting circuit for lighting the plurality of LED chips are provided in a base unit, and the substrate is provided with a plurality of LED chips in front of the base unit. A globe to cover is attached, and behind the base portion, an LED bulb for growing a plant to which a base electrically connected to the lighting circuit is attached,
The plurality of LED chips include a plurality of red LEDs for irradiating a red LED, and a plurality of white light emitting LEDs for irradiating a white LED,
A light inlet for taking in external light,
A sensor for detecting the illuminance of the external light taken from the light inlet ,
When the illuminance detected by the sensor exceeds a first predetermined value, the plurality of red LEDs are turned on and the plurality of white light-emitting LEDs are turned off. A plant growing LED bulb, comprising: switching means for turning off the plurality of white light emitting LEDs and turning off the plurality of white light emitting LEDs.
前記第一領域における前記複数の赤色ＬＥＤの中に、白色ＬＥＤを照射し、前記複数の赤色ＬＥＤより個数の少ない補完白色発光用ＬＥＤを点在させ、
前記切替え手段は、前記複数の赤色ＬＥＤと同時に前記補完白色発光用ＬＥＤを点灯させ、前記複数の赤色ＬＥＤと同時に前記補完白色発光用ＬＥＤを消灯させることを特徴とする請求項１に記載の植物育成用ＬＥＤ電球。 The substrate has a first region where the plurality of red LEDs are arranged, and a second region where the plurality of white light emitting LEDs are arranged,
Among the plurality of red LEDs in the first region, a white LED is irradiated, and a small number of complementary white light emitting LEDs are scattered less than the plurality of red LEDs,
The plant according to claim 1, wherein the switching unit turns on the complementary white light emitting LED simultaneously with the plurality of red LEDs and turns off the complementary white light emitting LED simultaneously with the plurality of red LEDs. LED bulb for training.
前記第一領域における前記複数の赤色ＬＥＤの中に、白色ＬＥＤを照射し、前記複数の赤色ＬＥＤより個数の少ない補完白色発光用ＬＥＤを点在させ、
前記切替え手段は、前記センサーの検知した照度が前記第一所定値を超えた第二所定値を超えた場合にだけ、前記複数の赤色ＬＥＤと同時に前記補完白色発光用ＬＥＤを点灯させ、前記第二所定値以下では前記補完白色発光用ＬＥＤを消灯させることを特徴とする請求項１に記載の植物育成用ＬＥＤ電球。 The substrate has a first region where the plurality of red LEDs are arranged, and a second region where the plurality of white light emitting LEDs are arranged,
Among the plurality of red LEDs in the first region, a white LED is irradiated, and a small number of complementary white light emitting LEDs are scattered less than the plurality of red LEDs,
Only when the illuminance detected by the sensor exceeds a second predetermined value exceeding the first predetermined value, the switching unit turns on the complementary white light emitting LED simultaneously with the plurality of red LEDs, and 2. The LED light bulb for growing plants according to claim 1, wherein the LED for complementary white light emission is turned off when the value is not more than two predetermined values.
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