JP2009289504A - Luminaire and illuminating device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make effective use of space in a plant raising factory and to reduce cost for raising plants in the plant raising factory. <P>SOLUTION: The luminaire 1 comprises: an elongate base body 2; a light source part 3 provided at the base body 2 to light up; a fluid supply pipe 4 provided along the longitudinal direction of the base body 2 on the backside of the light source part 3 and allowing water or the like supplied to the raised plants to flow through; and a connecting pipe 5 provided at the end of the fluid supply pipe 4 and connectable to the end of a fluid supply pipe 4 of another luminaire 1. A plurality of luminaires 1 are connected through the connecting pipe 5. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a lighting fixture and a lighting device used in a plant growing factory.

  In plant growing factories, plants are grown using lighting fixtures that use LEDs (light emitting diodes) or the like as light sources. However, it is required to increase the durability of lighting fixtures from the viewpoint of reducing the cost of plant growth. As a lighting fixture capable of enhancing such durability, Patent Document 1 discloses that a large number of LEDs are installed in a rectangular ceramic panel, a cavity is formed in the ceramic panel, and cooling water is supplied to the cavity by a forced cooling device. A panel-type lighting fixture that is circulated to prevent temperature rise due to heat generation of LEDs is disclosed.

JP-A-9-98665

  However, since the panel type lighting fixture of patent document 1 is a planar rectangle, the installation place is limited to the place which can take a place planarly, and there exists a malfunction that it is difficult to aim at the effective use of a space. Moreover, since the cooling water is prepared only to cool the heat generated by the LED and is flowed by the forced cooling device, there is also a problem that the cost for that increases.

  This invention proposes in view of the said subject, Comprising: While providing the effective use of the space of a plant breeding factory, the lighting fixture and lighting apparatus which can aim at the cost reduction of the plant cultivation of a plant growing factory are provided. The purpose is to do.

  The luminaire of the present invention has an elongated base, a light source part that can be lit on the base, a back side of the light source part along the longitudinal direction of the base, and a fluid used in a plant growing factory. And a fluid supply pipe to be flowed.

  In the lighting fixture of the present invention, the base is formed of a material having a thermal conductivity of 100 W / m · K or more near room temperature.

  Moreover, the lighting fixture of the present invention is characterized in that a fluid to be supplied to the growing plant flows through the fluid supply pipe.

  Moreover, the lighting fixture of this invention is provided with the connection part which can be connected with the edge part of the fluid supply pipe | tube of another lighting fixture in the edge part of the said fluid supply pipe | tube.

  In addition, the lighting fixture of the present invention has an open portion formed along the longitudinal direction of the base, and a light source mounting portion provided hollow inside the open portion along the longitudinal direction of the base, The light source part is provided in the light source mounting part with a light irradiation side provided in the open part, and the open part is closed with a light-transmitting cover.

  Moreover, the luminaire of the present invention is characterized in that a hollow part capable of flowing a gas along the longitudinal direction of the base is formed on the back side of the light source part.

  In addition, the lighting device of the present invention is a fluid in which a plurality of the lighting fixtures of the present invention are arranged so as to connect the ends of the fluid supply pipes, and the fluid is supplied to a growing plant arranged on the light irradiation side of the lighting fixture. Is supplied through the connected fluid supply pipes of the plurality of lighting fixtures.

  Moreover, the lighting device of the present invention is characterized in that the plurality of lighting fixtures are arranged in a linear shape, a meandering shape, an annular shape, or a combination thereof.

  In the present invention, by making the base on which the light source unit is provided elongated, it can be used in a narrow place or an elongated place, and the space of the plant growing factory can be effectively used. In addition, by supplying the fluid used in the plant growing factory to the fluid supply pipe, it is not necessary to prepare a separate refrigerant, so that the cost of plant growing in the plant growing factory can be reduced, and the heat generated by the light source The fluid in the supply pipe can be heated and supplied at an appropriate temperature, so that a heater for heating the fluid is not required or the power consumption of the heater can be greatly reduced. Also, by providing a fluid supply tube along the longitudinal direction of the elongated base on the back side of the light source unit, the heat generated by the light source is cooled by the fluid in the fluid supply tube, improving the durability of the light source and improving the light efficiency of the light source. Improvement and reduction of power consumption of the light source can be achieved.

  In addition, by forming a substrate with a material with a thermal conductivity of 100 W / m · K or more near room temperature, it conducts toward the fluid supply tube without encouraging heat dissipation of the light source, and the heat generation of the light source is very effective. Cooling can be further promoted to improve the durability of the light source, improve the light efficiency of the light source, reduce the power consumption of the light source, and further warm the fluid in the fluid supply tube with the heat generated by the light source Therefore, a fluid that requires a higher temperature can be supplied at an appropriate temperature.

  Also, by flowing the fluid supplied to the growing plant through the fluid supply pipe, the heat supplied to the growing plant is used to cool the heat of the light source, improving the durability of the light source, improving the light efficiency of the light source, The power consumption can be reduced, and a fluid that has been heated to an appropriate temperature by the heat generated by the light source can be supplied to the growing plant.

  Further, by providing a connecting portion connectable to the end of the fluid supply pipe of another lighting fixture at the end of the fluid supply pipe, in the installation of a plurality of lighting fixtures, the fluid supply pipe of one lighting fixture is different from the fluid supply pipe. It is possible to connect a fluid supply pipe of a lighting fixture to form a continuous flow path, and to supply a fluid from a single fluid supply source to the required flow path. In addition, the fluid can be heated with a large amount of heat generated by the light source of each lighting fixture, and the fluid that requires a further increase in temperature can be supplied at an appropriate temperature.

  In addition, the light source part is disposed in the hollow light source attachment part, and the open part of the light source attachment part is closed with a translucent cover, so that the airtightness in the light source attachment part is maintained, and the deteriorating substances such as moisture of the growing plant are removed. Touching the light source can be prevented, and the durability of the light source can be improved.

  In addition, by forming a hollow part through which the gas can flow along the longitudinal direction of the substrate on the back side of the light source part, the heat of the light source is cooled by the flowing gas to further promote the cooling of the light source, and the durability of the light source And the effect of improving the light efficiency of the light source and reducing the power consumption of the light source can be further promoted, and the circulating gas partially bears the cooling of the heat radiation of the light source, and the fluid in the fluid supply pipe When the fluid temperature is low, the temperature rise of the fluid in the fluid supply pipe can be suppressed and the fluid can be supplied at a suitable temperature.

  Further, by arranging a plurality of lighting fixtures so as to connect the ends of the fluid supply pipe, and supplying the fluid supplied to the plant arranged on the light irradiation side of the lighting fixture through the connected fluid supply pipe, A continuous flow path is formed by a plurality of fluid supply pipes, and a fluid can be supplied from one fluid supply source to the continuous flow path and supplied to the growing plant. Moreover, the fluid can be heated by a large amount of heat generated by the light source of each lighting fixture, and the fluid that is required to further increase in temperature can be supplied to the plant at an appropriate temperature.

  Also, a plurality of lighting fixtures having an elongated base are arranged in a linear shape, a meandering shape, an annular shape, or a combination thereof, and a linear and elongated installation space, a planar installation space, a predetermined device, etc. in a plant growing factory It is possible to configure the lighting device by adapting to an annular installation space centered on each other. Moreover, it contributes to the increase of the area | region which can grow a breeding plant in a plant breeding factory.

  A lighting fixture and a lighting device according to an embodiment of the present invention will be described with reference to the drawings.

[Lighting Apparatus of Embodiment]
The lighting fixture 1 of this embodiment is, as shown in FIGS. 1-4, the elongate base | substrate 2, the light source part 3 which is arrange | positioned in parallel by the predetermined pitch on the bottom face side of the base | substrate 2, and is provided so that lighting is possible, A fluid supply pipe 4 is provided on the back side of the light source unit 3 along the longitudinal direction of the base body 2 and into which a fluid used in a plant growing factory flows.

  The base 2 has a rod shape having a hollow portion, and an open portion 21 is formed along the longitudinal direction on the bottom side thereof. A hollow light source mounting portion 22 that is wider than the opening portion 21 is formed along the longitudinal direction at the lower portion of the base body 2 that is inside the opening portion 21, and the opening portion 21 side is irradiated with light within the light source mounting portion 22. A light source unit 3 to be described later is accommodated as a side, and the open portion 21 is closed with a light-transmitting cover 23 in a state in which the light source unit 3 is accommodated. As the translucent cover 23, it is possible to use one having no light diffusion function or one having a light diffusion function.

  A fluid supply pipe 4 is provided in the upper part of the base 2 along the longitudinal direction of the base 2, and the fluid supply pipe 4 is disposed on the back side of the light source unit 3. On the left and right sides of the fluid supply pipe 4, hollow portions 24 having a substantially rectangular cross-sectional view are formed along the longitudinal direction of the base 2, and the hollow portions 24 are disposed on the back side of the light source portion 3 and are made of gas such as air. Can be distributed. A fixture holding portion 241 is formed on the lower surface of the hollow portion 24 so that the fixture is held when the base 2 is connected to another base 2.

  The substrate 2 is made of a material having a high thermal conductivity such as aluminum or a nitride ceramic, preferably a material having a thermal conductivity of 100 W / m · K or more near room temperature, more preferably a thermal conductivity of 150 W / m · K to 2000 W. It may be formed of a material of / m · K. Further, it is more preferable to use aluminum as a material having high thermal conductivity and good workability.

  The light source unit 3 includes a light source 31 and a substantially umbrella-shaped reflector 32 provided around the light source 31, and the irradiation light of the light source 31 is controlled by the reflector 32 and is irradiated from the opening portion 21 or the translucent cover 23. It is like that. An appropriate light source such as an LED (light emitting diode), a field emission light source (FEL), a high-pressure sodium lamp, a metal halide lamp, a fluorescent lamp, or a mercury lamp can be used as the light source of the light source unit 3. It is preferable because electric power can be drastically reduced. Moreover, it is preferable to irradiate the light which has a wavelength component of 640 nm-690 nm red light useful for photosynthesis, and 420-470 nm blue light useful for morphogenesis of a breeding plant, using LED etc. as a light source.

  In the mounting of the light source unit 3 at the light source mounting unit 22, a mounting member 33 that holds the outer edge of the reflector 32 is provided, and a bolt 34 is inserted from below into a protruding portion 331 that protrudes upward at a predetermined position of the mounting member 33. The attachment member 33 is attached to the upper surface of the light source attachment portion 22 by screwing with a bolt 34. The light source unit 3 is provided with a wiring board and wiring of the light source 31 (not shown), and the light source 31 can be turned on / off by turning on / off a switch (not shown). Furthermore, when connecting the lighting fixture 1 so that it may mention later, it is preferable to provide wiring so that the light sources 31 of the plurality of lighting fixtures 1 can be turned on / off at a time.

  The fluid supply pipe 4 can be, for example, a liquid supply pipe that supplies a liquid such as water used in a plant growing factory, or a gas supply pipe that supplies a gas used in a plant growing factory. In the case of a fluid to be used, for example, water supplied to the growing plant, a nutrient solution useful for growing the growing plant, or a gas useful for growing the growing plant can be used.

  A connecting pipe 5 is provided at the end of the fluid supply pipe 4 as a connecting part that can be connected to the end of the fluid supply pipe 4 of another lighting apparatus 1. In the lighting fixture 1 of the present embodiment, female thread portions are formed on the inner surfaces of both ends of the fluid supply pipe 4, and male thread portions are formed on both ends of the connection pipe 5. One end of the external thread is screwed into the end of the fluid supply pipe 4 and the connection pipe 5 is attached to the fluid supply pipe 4. The connection pipe 5 is attached to each end of the fluid supply pipe 4. It has been. Each lighting device 1 may have the same configuration in which the connecting pipe 5 is provided at one end of the fluid supply pipe 4.

  When the lighting apparatus 1 is used in a plant growing factory, for example, as shown in FIG. 4, the single lighting apparatus 1 is installed with the light source unit 3 facing the plant 12 in the planting container 11. The light source 31 is turned on to irradiate the plant 12 with light, and water supplied to the plant 12 from one end is caused to flow through the fluid supply pipe 4, and water flowing out from the other end is supplied to the plant 12. Moreover, when connecting and using the lighting fixture 1, it uses like the illuminating device of embodiment mentioned later.

  The luminaire 1 according to the present embodiment can be used in a narrow place, an elongated place, and the like, and enables effective use of the space of the plant growing factory. In addition, since the light source unit 3 can be cooled without using a separate refrigerant by using a fluid used in a plant growing factory, the cost of plant growing can be reduced, the durability of the light source can be improved, and the light from the light source can be reduced. Efficiency can be improved and power consumption of the light source can be reduced. Moreover, the power consumption of the heater which heats fluids, such as water supplied to the plant 12, can be suppressed significantly. Moreover, by closing the light source part 3 with the translucent cover 23, the airtightness in the light source attachment part 22 is maintained, and it is possible to prevent deterioration substances such as moisture of the growing plant from coming into contact with the light source, thereby improving the durability of the light source. Can be improved. Further, by forming the hollow portion 24 through which air or the like can be circulated on the back side of the light source unit 3 along the longitudinal direction of the base body 2, the cooling of the light source 31 can be further promoted by the circulated air or the like.

[Lighting Device of First Embodiment]
In the lighting device of the first embodiment, a male lighting fixture 1 in which connecting pipes 5 are attached to both ends of a fluid supply pipe 4, respectively, and female threaded portions are formed on both ends of the fluid supply pipe 4, and the connecting pipe 5 is used. Are alternately arranged in a row, and the connecting tubes 5 of the male lighting device 1 are respectively screwed into the fluid supply tubes 4 of the female lighting device 1 to form straight lines. Connect in a shape. When each lighting fixture 1 has the same configuration in which the connecting pipe 5 is provided at one end of the fluid supply pipe 4, each connecting pipe 5 is not provided with the connecting pipe 5 of another lighting fixture 1. The lighting fixture 1 is connected by screwing to the end.

  When using the illuminating device of 1st Embodiment, the illuminating device is installed, for example by directing the light source part 3 toward the plant 12 in the planting container 11 (refer FIG. 4), and the light source 31 of each lighting fixture 1 of an illuminating device. Is turned on to irradiate the plant 12 with light, and a fluid such as water supplied to the plant 12 is flowed from one end of the flow path formed by connecting the plurality of liquid supply pipes 4 to the other end. The fluid such as water flowing out from the other end of the flow path is supplied to the plant 12.

  In the lighting device of the first embodiment, the fluid supply pipe 4 of one lighting fixture 1 and the fluid supply pipe 4 of another lighting fixture 1 are connected to form a continuous flow path, and continuous from one fluid supply source. It is possible to supply fluid to the growing plant by supplying fluid to the flow path, and to heat the fluid with a large amount of heat generated by the light source of each lighting fixture 1, so that the fluid that requires further increase in temperature is made appropriate temperature. Can be supplied.

[Lighting Device of Second Embodiment]
In the lighting device of the second embodiment, a plurality of lighting fixtures 1 are arranged in the width direction, and separate connecting members 6 having flow paths 61 are arranged on both sides in the length direction of the lighting fixture 1. Are fixed to the connecting member 6 to form a meandering flow path, whereby a plurality of lighting fixtures 1 are arranged in a meandering manner. The connecting member 6 has a connecting hole 62 having an internal thread portion formed on the inner surface, and a flow path 61 is formed so as to connect the connecting holes 62 to each other. The male threaded portion of the connecting tube 5 of the lighting fixture 1 is screwed into the female threaded portion of the connecting hole 62, and the fluid supply tube 4 of the lighting fixture 1 and the flow path 61 of the connecting member 6 are integrated to form a meandering flow path. Composed. Further, the connecting hole 62 located closest to the end of the connecting member 6 is penetrated to the end of the connecting member 6 by a substantially L-shaped channel 61a, and serves as an introduction part and a lead-out part for a fluid such as water, respectively.

  When using the illuminating device of 2nd Embodiment, the illuminating device is installed, for example by directing the light source part 3 toward the plant 12 in the planting container 11 (refer FIG. 4), and the light source 31 of each lighting fixture 1 of an illuminating device. The light such as water supplied to the plant 12 from one end of the meandering flow path formed by connecting the plurality of liquid supply pipes 4 to the plant 12 while illuminating the plant 12 with light. And a fluid such as water flowing out from the other end of the flow path is supplied to the plant 12.

  In the lighting device of the second embodiment, the fluid supply pipe 4 of one lighting fixture 1 and the fluid supply pipe 4 of another lighting fixture 1 are connected to form a continuous flow path, and continuous from one fluid supply source. It is possible to supply fluid to the growing plant by supplying fluid to the flow path, and to heat the fluid with a large amount of heat generated by the light source of each lighting fixture 1, so that the fluid that requires further increase in temperature is made appropriate temperature. Can be supplied. Moreover, it can respond easily to a planar planting area.

[Modifications of Embodiment, etc.]
In the invention disclosed in this specification, in addition to the configurations of each invention and each embodiment, those partial configurations are changed and specified to other configurations disclosed in this specification, to the extent applicable. Also included are those specified by adding other configurations disclosed in the present specification to these configurations, or those conceptualized by deleting these partial configurations to the extent that partial effects can be obtained. It is.

  For example, the configuration of the connecting portion that connects one lighting fixture 1 and another lighting fixture 1 is appropriate in addition to the lighting fixture 1 of the embodiment. For example, a male screw portion is provided on the outer surface of the end portion of the fluid supply pipe 4 and connected. A configuration in which an internal thread portion is provided on the inner surface of the end portion of the pipe 5 and screwed together, or an internal thread portion is provided on the inner surface of one end portion of the fluid supply pipe 4, and an external thread portion is provided on the outer surface of the other end portion. A structure that is screwed using a connecting pipe 5 in which an external thread is formed on the outer surface of the end and an internal thread is formed on the inner surface of the other end, or an internal thread is provided on the inner surface of one end of the fluid supply pipe 4 It is also possible to adopt a configuration in which a male thread portion is provided on the outer surface of the end portion and the connection is made without using another member such as the connection pipe 5.

  Moreover, the structure which arrange | positions the several lighting fixture 1 is appropriate other than the illuminating device of 1st, 2nd embodiment, for example, arrange | positions the several lighting fixture 1 in a meandering form, connecting it linearly. It is also possible to adopt a configuration or a configuration in which a plurality of lighting fixtures 1 are annularly arranged.

  The gas flowing through the hollow portion 24 is appropriate as long as it has a cooling function, and other than air, for example, a cooling gas such as helium gas or nitrogen gas can be used.

  The present invention can be used as, for example, a lighting apparatus or a lighting apparatus that irradiates light to a plant in a plant growing factory.

The bottom view of the lighting fixture of embodiment. The partially cut bottom view of the lighting fixture of embodiment. The partially cut vertical front view of the lighting fixture of embodiment. The side view of the lighting fixture of embodiment. Explanatory drawing of the bottom face of the illuminating device of 1st Embodiment. Explanatory drawing of the bottom face of the illuminating device of 2nd Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Lighting fixture 2 ... Base | substrate 21 ... Opening part 22 ... Light source attachment part 23 ... Translucent cover 24 ... Hollow part 241 ... Fixture holding part 3 ... Light source part 31 ... Light source 32 ... Reflector 33 ... Mounting member 331 ... Projection part 34 ... Bolt 4 ... Fluid supply pipe 5 ... Connection pipe 6 ... Connection member 61, 61a ... Flow path 62 ... Connection hole 11 ... Planting container 12 ... Plant

Claims (8)

An elongated substrate;
A light source unit provided on the base so as to be lit,
A lighting apparatus, comprising: a fluid supply pipe provided on a back side of the light source section along a longitudinal direction of the base body and into which a fluid used in a plant growing factory flows.   The lighting fixture according to claim 1, wherein the base is made of a material having a thermal conductivity of 100 W / m · K or more near room temperature.   The lighting apparatus according to claim 1, wherein a fluid supplied to the growing plant is caused to flow through the fluid supply pipe.   The lighting device according to any one of claims 1 to 3, wherein a connecting portion that can be connected to an end portion of a fluid supply pipe of another lighting device is provided at an end portion of the fluid supply tube. An opening formed along the longitudinal direction of the substrate;
A light source mounting portion provided inside the open portion so as to be hollow along the longitudinal direction of the base,
The light source part is disposed in the light source mounting part by providing a light irradiation side in the open part,
The lighting apparatus according to claim 1, wherein the opening portion is closed with a translucent cover.   The lighting apparatus according to claim 1, wherein a hollow part capable of flowing a gas along the longitudinal direction of the base is formed on the back side of the light source part. A plurality of the lighting fixtures according to any one of claims 1 to 6 are arranged so as to connect ends of the fluid supply pipes,
A lighting device, wherein a fluid to be supplied to a growing plant disposed on the light irradiation side of the lighting fixture is supplied through the connected fluid supply pipes of the plurality of lighting fixtures.   The lighting device according to claim 7, wherein the plurality of lighting fixtures are arranged in a linear shape, a meandering shape, an annular shape, or a combination thereof.

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