JP2012151078A - Rope light and rope light system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To dissipate heat from LEDs certainly and sufficiently as well.SOLUTION: The rope light 1 includes a rope body 11 made of a resin material and formed in a rope shape, a flexible substrate 12 arranged inside the rope body 11, a plurality of LEDs 13 arranged on one main face 12a of the flexible substrate 12 inside the rope body 11 along an extension direction of the rope body 11, and a water passage arranged on the other main face 12b of the flexible substrate 12 along the extension direction inside the rope body 11 for passing cooling water to dissipate heat of the LEDs 13. In this rope light 1, the heat from the LEDs 13 is not only dissipated to the outside, but also is dissipated by the cooling water passing through the water passage 15 arranged in the rope body 11.

Description

  The present invention relates to a rope light and a rope light system including the same.

  As a conventional rope light, for example, the one described in Patent Document 1 is known. In this rope light, a plurality of chip-type LED (Light Emitting Diode) lights are arranged in a rope main body formed of a resin material along a direction in which the rope main body is extended and connected at intervals. Yes.

JP 2006-202500 A

  Here, in the rope light as described above, for example, when it is intended to increase the brightness (brightness) of the rope light by mounting a high power type LED or arranging the LEDs at a high density, the LED There is a risk that the adverse effect of heat will be significant. Therefore, it is desired that the rope light as described above can surely and sufficiently dissipate the heat of the LED, particularly when the luminance is increased.

  Then, this invention makes it a subject to provide the rope light which can radiate | emit the heat | fever of LED reliably and fully, and a rope light system provided with the same.

  In order to solve the above-described problems, a rope light according to the present invention is formed of a resin material and has a rope-shaped rope body, a flexible substrate provided inside the rope body, a flexible substrate, and a rope body. A plurality of LEDs are provided on one main surface of the board along the extending direction of the rope body, and the LED is provided on the other main surface side of the board inside the rope body along the extending direction to dissipate the heat of the LEDs. And a water flow path for circulating cooling water for the purpose.

  In the rope light of the present invention, the heat from the LED is not only radiated to the outside but also radiated by the cooling water flowing through the water flow path provided in the rope body. Therefore, according to the present invention, the heat of the LED can be surely and sufficiently dissipated, and as a result, the brightness of the rope light can be increased by mounting, for example, a high power LED.

  In addition, as a configuration that preferably exhibits the above-described effects, specifically, when the water channel is configured by one or a plurality of spaces formed in the rope body, or the water channel is inserted through the rope body. There may be a case where it is constituted by one or a plurality of pipe members.

  The rope body is formed by extrusion molding together with a substrate on which the LEDs are provided, and it is preferable that the rope body further includes a coating material provided to cover at least the LEDs inside the rope body. In this case, the LED can be protected and it is possible to suppress the formation of irregularities following the shape of the LED on the outer surface of the rope body formed by extrusion.

  Moreover, it is preferable that a water flow path supplies the heating cooling water as a cooling water heated with the heat | fever of LED to a warm water module. In this case, energy saving and low carbonization can be realized using the heat of the LED.

  A rope light system according to the present invention is a rope light system including the above rope light, and includes a heater pipe that is connected to the downstream side of the water flow path and distributes heating and cooling water.

  Also in the rope light system of the present invention, since the rope light is provided, the heat of the LED can be radiated reliably and sufficiently. Furthermore, the heat of the LED can be utilized by a heater pipe that circulates heating and cooling water.

  The rope light is a light source for plant cultivation, and the heater pipe preferably warms the ambient atmosphere or the soil. In this case, the heat of the LEDs can be used for heating during plant cultivation.

  Moreover, it is preferable to provide the 1st irrigation means connected to the downstream of a water flow path and irrigating a plant with heating and cooling water. In this case, it becomes possible to irrigate the plant with the heating and cooling water after flowing through the water flow path.

  Moreover, it is preferable to provide the 2nd irrigation means connected in the middle of a water flow path and irrigating a cooling water to a plant. In this case, it is possible not only to dissipate the heat of the LED by circulating the cooling water through the water flow path, but also to irrigate the plant with the cooling water flowing through the water flow path.

  At this time, the cooling water is preferably liquid fertilizer. In this case, it becomes possible to supply cooling water to a plant as liquid manure.

  According to the present invention, it is possible to reliably and sufficiently dissipate the heat of the LED.

1 is a schematic configuration diagram of a rope light system including a rope light according to a first embodiment of the present invention. (A) is a sectional side view showing the rope light of FIG. 1, and (b) is a sectional view taken along line II (b) -II (b) of FIG. 2 (a). (A) is sectional drawing corresponding to FIG.2 (b) which shows the other example of the rope light of FIG. 1, (b) respond | corresponds to FIG.2 (b) which shows another example of the rope light of FIG. It is sectional drawing. (A) is sectional drawing corresponding to FIG.2 (b) which shows the rope light which concerns on 2nd Embodiment of this invention, (b) is FIG.2 (b) which shows the other example of the ropelight of Fig.4 (a). Is a cross-sectional view corresponding to FIG. (A) is sectional drawing corresponding to FIG.2 (b) which shows another example of the rope light of Fig.4 (a), (b) shows another example of the ropelight of Fig.4 (a). FIG. 3 is a cross-sectional view corresponding to FIG. (A) is sectional drawing corresponding to FIG.2 (b) which shows an example of the rope light which is not provided with a coating material, (b) respond | corresponds to FIG.2 (b) which shows an example of the rope light which concerns on another coating material. It is sectional drawing.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, the same or equivalent elements will be denoted by the same reference numerals, and redundant description will be omitted.

[First Embodiment]
First, a first embodiment of the present invention will be described. FIG. 1 is a schematic configuration diagram of a rope light system including a rope light according to a first embodiment of the present invention, and FIG. 2 is a cross-sectional view showing the rope light of FIG. As shown in FIG. 1, the rope light system 100 of this embodiment comprises the rope light 1 as a plant cultivation light source in a facility cultivation (plant factory). In the rope light system 100 here, the rope light 1 is used as an auxiliary light source or a fender light source for cultivating the plant 102 in the house 101.

  The rope light system 100 includes a rope light 1, a house heater 2, a soil heater 3, a drip tube 4 for irrigation, and a controller 5. As shown in FIG. 2, the rope light 1 includes a rope main body 11 having a long cord shape (string shape or rope shape), a flexible substrate (substrate) 12 provided inside the rope main body 11, and a rope main body 11. LED 13 arranged in parallel on flexible substrate 12, coating material 14 provided to cover LED 13 inside rope body 11, and water flow path 15 for circulating cooling water W inside rope body 11, ,It is configured.

  The rope body 11 extends for a predetermined length according to its use and purpose of use, and is formed of a resin material such as PVC (polyvinyl chloride). The rope body 11 has flexibility, that is, it has flexibility and can be deformed greatly. The rope main body 11 here has a rectangular cross section (hereinafter simply referred to as “cross section”) which is a cross section orthogonal to the extending direction. In addition, the cross-sectional external shape of the rope main body 11 is not limited to a rectangular shape, It can be set as various external shapes.

  The flexible board 12 is a flexible printed board, and is formed of, for example, copper or the like and has a rectangular cross-sectional shape with a thickness of 0.5 mm. The flexible substrate 12 includes one main surface 12a which is a main surface on one side and another main surface 12b opposite to the one main surface 12a. The flexible substrate 12 extends along the extending direction of the rope body 11 at a substantially central position in the rope body 11.

  The LED 13 functions as a light emission source. As the LED 13, for example, a high-power ultra-high brightness LED having an output of 1 W to 5 W is used. Further, the LED 13 here is of a surface mount type (mount type). A plurality of LEDs 13 are arranged in parallel on the main surface 12 a of the flexible substrate 12 in the rope body 11 at predetermined intervals along the extending direction of the rope body 11.

  The coating material 14 is formed of, for example, a transparent resin, and is provided on the one main surface 12a side of the flexible substrate 12 so as to cover at least the LED 13 in the rope body 11. The outer surface 14 a of the coating material 14 has a smooth curved surface along the outer surface 11 a of the rope body 11.

  The water flow path 15 circulates the cooling water W that is a liquid fluid such as water for radiating the heat of the LED 13 to cool at least the flexible substrate 12 and the LED 13. The water flow path 15 is a cavity having a watertight structure provided in the rope body 11. That is, the water flow path 15 here is constituted by a space (hole) formed in the rope body 11.

  The water flow path 15 is provided on the other main surface 12b side of the flexible substrate 12 in the rope body 11 so as to be close to the other main surface 12b. Specifically, the water channel 15 is formed at a position separated from the other main surface 12b by a predetermined distance in the rope main body 11, and the resin material of the rope main body 11 is interposed between the other main surface 12b. It is configured. Thereby, the leakage of the cooling water W to the flexible substrate 12 side is suitably prevented.

  Moreover, the water flow path 15 is provided along the said extending direction so that it may lead from one end of the extending direction to the other end in the rope main body 11. The cross-sectional shape of the water channel 15 is, for example, a rectangular shape (square water channel) wider than the width of the LED 13. Moreover, the water flow path 15 has a flow path area which can distribute | circulate the cooling water W of the predetermined flow volume according to the emitted-heat amount of LED13, for example. This water flow path 15 is used for heating / cooling water (that is, warm water; hereinafter simply referred to as “heating / cooling water”) W1 that is cooling water W heated by the heat of the LED 13 to a house heater 2 and a submerged heater 3 ( (See FIG. 1).

  The rope light 1 configured in this way is formed by extrusion molding. Specifically, the LED 13 is provided on one main surface 12a of the flexible substrate 12, and the intermediate body is formed by covering the LED 13 with the coating material 14 in this state. At the same time, a water flow path mold having a shape corresponding to the water flow path 15 is prepared as a means for defining the water flow path 15. Then, the rope body 11 is formed by continuously extruding the molten resin from the extrusion molding machine so as to include the intermediate body and the water flow path mold, thereby forming the rope light 1. In other words, the rope light 1 is manufactured by extruding the rope body 11 together with the flexible substrate 12 having the LED 13 covered with the coating material 14 and the water flow path mold.

  Returning to FIG. 1, the house heater 2 is a hot water module (hot water utilization facility) that warms the ambient atmosphere in the house 101, and includes a house heater pipe 21. The house heater pipe 21 is connected to the downstream end of the water flow path 15, and distributes the heating / cooling water W <b> 1 after flowing through the water flow path 15.

  The underground heater 3 is a warm water module that warms the soil, and includes an underground heater pipe 31 embedded in the soil 103 of the cultivation tray 104. The underground heater pipe 31 is connected to the downstream end of the house heater pipe 21, that is, connected to the downstream side of the water flow path 15 via the house heater pipe 21. This underground heater pipe 31 distributes the heating / cooling water W <b> 1 after flowing through the house heater pipe 21. The submerged heater pipe 31 has a plurality of perforated pores 32, and at least a part of the heating / cooling water W1 is irrigated to the plant 102 by the plurality of pores 32.

  The irrigation drip tube 4 irrigates a part of the cooling water W flowing through the water flow path 15 to the root of the plant 102, and is connected to the middle of the water flow path 15. The controller 5 performs operation control and power control on the rope light 1 and controls, for example, lighting and extinguishing of the LED 13.

  In the rope light system 100 configured as described above, the pump P is driven when the LED 13 of the rope light 1 is lit, and the cooling water W flows into the water flow path 15 of the rope light 1 from the upstream side. And in the rope light 1, the cooling water W of the predetermined flow according to the emitted-heat amount of LED13 flows through the water flow path 15 to the downstream, and the heat which generate | occur | produced with lighting of LED13 in that case turns into the cooling water W The LED 13 and the flexible substrate 12 are cooled at least by being moved and dissipated.

  Thereafter, the heating / cooling water W1 flows out from the downstream side of the water flow path 15 of the rope light 1, and the heating / cooling water W1 is circulated in the house heater pipe 21, whereby the inside of the house 101 is warmed. Subsequently, the heating / cooling water W <b> 1 is circulated in the soil heater pipe 31, thereby warming the soil 103. At this time, at least a part of the heating / cooling water W <b> 1 is led out to the soil 103 from the plurality of pores 32 of the submerged heater pipe 31, thereby irrigating the plant 102. Finally, the remaining heating / cooling water W1 is merged with the cooling water W before the rope light 1 flows in, for example.

  As described above, in the present embodiment, the heat from the LED 13 is not only radiated to the outside but also actively radiated by the cooling water W flowing through the water flow path 15 provided in the rope body 11. It will be. Therefore, according to the present embodiment, the heat of the LED 13 can be reliably and sufficiently dissipated, and even when the high-power LED 13 is mounted and the brightness of the rope light 1 is increased, the adverse effect due to the heat of the LED 13 is preferable. Can be suppressed.

  Moreover, in the rope light 1 of this embodiment, as mentioned above, when the rope main body 11 is formed by extrusion molding together with the flexible substrate 12, the LED 13 on the one main surface 12a of the flexible substrate 12 is a coating material. 14 is covered. Therefore, the LED 13 can be protected by the coating material 14, and the outer surface 11a of the rope body 11 formed by extrusion can be prevented from forming irregularities following the shape of the LED 13, and the outer surface 11a can be made a smooth smooth surface. It becomes possible to do.

  Moreover, in this embodiment, by supplying the heating / cooling water W1 from the water flow path 15 to the house heater 2 and the soil heater 3, the ambient atmosphere is warmed by the house heater pipe 21 and the soil 103 is ground by the soil heater pipe 31. Can be warmed. That is, the heat of the LED 13 is used for heating during plant cultivation. As described above, in the present embodiment, it is possible to realize energy saving and carbon reduction by making hot water using the heat of the LED 13 and using the hot water. It should be noted that, in the case of institutional cultivation, since the heating and supplementary light in winter are particularly important, this embodiment can be said to be particularly effective in the winter.

  Moreover, in this embodiment, since the heating / cooling water W1 is irrigated to the plant 102 from the plurality of pores 32 of the underground heater pipe 31, as described above, the heating / cooling water W1 after circulation through the water flow path 15 is It becomes possible to supply the plant 102 as moisture.

  Moreover, in this embodiment, since the irrigation drip tube 4 is connected in the middle of the water flow path 15, a part of the cooling water W flowing through the water flow path 15 is drip-irrigated to the root of the plant 102 and cooled. A part of the water W can be supplied to the plant 102 as moisture.

  In the present embodiment, as described above, at least a part of the heating / cooling water W1 is irrigated by the plant heater 102 by the soil heater pipe 31, and the remaining heating / cooling water W1 is supplied to the cooling water W before the rope light 1 flows in. In some cases, the plant 102 may be irrigated with all of the heating / cooling water W1.

  Incidentally, the water flow path 15 in the rope light 1 of this embodiment is not limited to the said structure, It is good also as a various structure, if the cooling water W is distribute | circulated. For example, as shown in FIG. 3 (a), the rope light 1 includes a water channel 25 having a circular cross section (round water channel) instead of the water channel 15 (see FIG. 2 (b)). Also good. The position of the water flow path 25 in the direction along the main surface of the flexible substrate 12 (the left-right direction in the drawing) is the same position as the LED 13 in the cross section.

  For example, as illustrated in FIG. 3B, the rope light 1 may include a plurality (here, two) of water channels 35 instead of the water channel 15 (see FIG. 2B). . These water flow paths 35 and 35 are arranged in parallel at predetermined intervals in the direction along the main surface of the flexible substrate 12 so that the positions in the thickness direction (the vertical direction in the figure) of the flexible substrate 12 are equal to each other in the cross section. Has been.

  In the above, the submerged heater 3 having the pores 32 constitutes the first irrigation means, and the irrigation drip tube 4 constitutes the second irrigation means.

[Second Embodiment]
Next, a second embodiment of the present invention will be described. In the description of the present embodiment, differences from the first embodiment will be mainly described.

  FIG. 4A is a cross-sectional view showing a rope light according to the second embodiment of the present invention. As shown in FIG. 4A, the rope light 51 of the present embodiment is different from the rope light 1 in that a water channel 55 is provided instead of the water channel 15 (see FIG. 2B). is there.

  The water channel 55 is configured by a pipe 55 a (tube member) inserted through the rope body 11. That is, the water flow path 55 is a pipe insertion type formed by inserting the pipe 55 a into the rope body 11. The pipe 55a has a rectangular cylindrical shape, and is provided in the rope body 11 along the extending direction so as to communicate from one end to the other end in the extending direction. The pipe 55a is formed of a resin material such as PE (polyethylene).

  The rope light 51 of this embodiment includes the intermediate body having the LED 13 covered with the coating material 14 and the pipe 55a, and continuously forms the rope body 11 by extruding the molten resin from the extrusion molding machine. It is formed by.

  As described above, also in this embodiment, the heat of the LED 13 can be radiated reliably and sufficiently, and even when the high-power LED 13 is mounted and the brightness of the rope light 1 is increased, adverse effects due to the heat of the LED 13 are suppressed. It becomes possible.

  Moreover, in this embodiment, since the water flow path 55 is comprised by the pipe 55a penetrated in the rope main body 11, as mentioned above, the leakage from the water flow path 55 of the cooling water W is suppressed reliably. Can do. As a result, for example, the water flow path 55 can be made closer to the flexible substrate 12, and the heat of the LED 13 can be suitably radiated.

  FIG.4 (b) is a cross-sectional view which shows the other example of the rope light of Fig.4 (a). As shown in FIG. 4B, the rope light 51 of the present embodiment includes a water channel 65 having a channel shape similar to the water channel 25 in place of the water channel 55 (see FIG. 4B). It may be. The water channel 65 is configured by a pipe 65 a inserted into the rope body 11. The pipe 65a has a circular cylindrical shape, and is provided along the extending direction so as to communicate from one end to the other end in the extending direction in the rope body 11.

  Fig.5 (a) is a cross-sectional view which shows the other example of the rope light of Fig.4 (a). As shown in FIG. 5A, the rope light 51 of the present embodiment is replaced with a plurality of channel shapes (here, 2) similar to the water channel 35, instead of the water channel 55 (see FIG. 4B). May be provided. These water flow paths 75 and 75 are respectively configured by pipes 75a and 75a inserted into the rope body 11. The pipe 75a has a rectangular cylindrical shape, and is provided along the extending direction so as to communicate from one end to the other end in the extending direction in the rope body 11.

  FIG.5 (b) is a cross-sectional view which shows another example of the rope light of Fig.4 (a). In the rope light 51 of the present embodiment, as shown in FIG. 5B, a plurality of (here, two) LEDs 13 are provided in the cross section in the main surface 12 a of the flexible substrate 12 in the rope body 11. It may be provided so as to line up in a direction along the main surface of the flexible substrate 12. And it may replace with the water flow path 55 (refer FIG.4 (b)), and may provide the multiple (here two) water flow paths 85. FIG.

  Each of the water flow paths 85 and 85 has a cross-sectional position in the direction along the main surface of the flexible substrate 12 equal to each position of the LEDs 13 and 13. In addition, the water flow paths 85 and 85 are juxtaposed at predetermined intervals in the direction along the main surface of the flexible substrate 12 so that the positions in the thickness direction of the flexible substrate 12 are equal to each other in the cross section. The water flow path 85 is configured by a pipe 85 a inserted into the rope body 11. The pipe 85a has a circular cylindrical shape, and is provided along the extending direction so as to communicate from one end to the other end in the extending direction in the rope body 11.

  The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments. The present invention is modified without departing from the gist described in each claim or applied to other embodiments. It may be a thing.

  For example, in the above-described embodiment, the rope lights 1 and 51 are applied to the plant cultivation light source. However, the rope lights 1 and 51 can also be applied to an indirect illumination light source, an illumination (display) light source, and the like. Moreover, although the surface mount type thing is used as LED13, a bullet-type (lamp type) thing may be used and various kinds of LED can be used.

  Moreover, in the said embodiment, although high power type LED13 is mounted in order to raise the brightness | luminance of the rope light 1, high brightness LED is closely arrange | positioned on the flexible substrate 12 (high density arrangement | positioning), and the rope light 1 of FIG. The brightness may be increased.

  Further, as shown in FIG. 6A, for example, if it is possible to suppress the formation of irregularities following the shape of the LED 13 on the outer surface 11a of the rope main body 11 during extrusion molding, the rope light 1 is made of the coating material 14. May not have.

  In addition, as shown in FIG. 6B, the rope light 1 may include a coating material 54 instead of the coating material 14. The coating material 54 extends along the extending direction of the rope body 11 while covering the flexible substrate 12, the LED 13, and the water flow path 15 in the rope body 11. In other words, the coating material 54 has a cylindrical shape along the extending direction of the rope body 11, and the flexible substrate 12, the LED 13, and the water flow path 15 are positioned in the cylinder. Also in such a coating material 54, it can suppress that the unevenness | corrugation which followed the shape of LED13 in the outer surface 11a of the rope main body 11 at the time of extrusion molding is formed.

  Moreover, although the water flow path 15, 25, 35, 55, 65, 75, 85 of the said embodiment distribute | circulates water etc. as the cooling water W, liquid fertilizer (liquid nutrient) is distribute | circulated as the cooling water W. Also good. In this case, it becomes possible to supply the cooling water W or the heating cooling water W1 to the plant 102 as liquid fertilizer.

  In addition, the structure of the rope light of this invention is not limited to the structure of the said embodiment, For example, it is good also as a structure which combined suitably each structure of the rope main body shown in FIGS. 1-6, a board | substrate, LED, and a water flow path. In the above description, the terms “rectangular”, “circular”, and “equal” include substantially rectangular, substantially circular, and substantially equal, and also include manufacturing errors and variations.

  DESCRIPTION OF SYMBOLS 1,51 ... Rope light, 2 ... House heater (warm water module), 3 ... Soil heater (warm water module, 1st irrigation means), 4 ... Drip tube for irrigation (2nd irrigation means), 11 ... Rope main body, 12 ... flexible substrate (substrate), 12a ... one main surface, 12b ... other main surface, 13 ... LED, 14, 54 ... coating material, 15, 25, 35, 55, 65, 75, 85 ... water flow path, 21 ... house Heater pipe (heater pipe), 31 ... Underground heater pipe (heater pipe), 55a, 65a, 75a, 85a ... Pipe (tube member), 100 ... Rope light system, W ... Cooling water, W1 ... Heating cooling water.

Claims (10)

A rope body that is formed of a resin material and has a cord shape;
A flexible substrate provided inside the rope body, and
A plurality of LEDs provided on one main surface of the substrate inside the rope body along the extending direction of the rope body;
A water flow path provided along the extending direction on the other main surface side of the substrate inside the rope body, and for circulating cooling water for radiating heat of the LED. Rope light.   The rope light according to claim 1, wherein the water flow path is configured by one or a plurality of spaces formed in the rope body.   The rope light according to claim 1 or 2, wherein the water flow path is constituted by one or a plurality of pipe members inserted into the rope main body. The rope main body is formed by extrusion molding together with the substrate provided with the LED,
The rope light according to any one of claims 1 to 3, further comprising a coating material provided so as to cover at least the LED inside the rope body.   The rope light according to any one of claims 1 to 4, wherein the water channel supplies heating / cooling water as cooling water heated by the heat of the LED to the hot water module. A rope light system comprising the rope light according to any one of claims 1 to 5,
A rope light system, comprising a heater pipe connected to the downstream side of the water flow path for circulating the heating / cooling water. The rope light is a light source for plant cultivation,
The rope light system according to claim 6, wherein the heater pipe warms an ambient atmosphere or soil.   The rope light system according to claim 7, further comprising a first irrigation means connected to the downstream side of the water flow path and irrigating the plant with the heating / cooling water.   The rope light system according to claim 7 or 8, further comprising a second irrigation means connected to the middle of the water flow path to irrigate the plant with the cooling water.   The rope light system according to claim 8 or 9, wherein the cooling water is liquid fertilizer.

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