JPH0974922A - House in greenhouse - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an economical and simple house in greenhouse capable of efficiently warming the bottom of a planting pot placed on floor or a soil laid on the floor of a greenhouse and uniformly heating the whole are of the floor with a small amount of energy. SOLUTION: This house A in greenhouse is formed with transparent or semitransparent sheets on its wall surfaces and installed with a heat-retaining unit B on its floor surface. The heat-retaining unit is constituted by horizontally arranging wire heaters 2, in which core wires made of carbon staple fibers are covered with an insulating covering material, and extend between a metal plate 1 excellent in heat conductivity and a base table 3 formed with an insulating material at suitable intervals. A lead wire 9 is extended from the heat retaining unit B to outside.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simple greenhouse house for storing plants such as flower pots and planters or directly laying soil on the floor to grow plants in a greenhouse.

[0002]

2. Description of the Related Art In recent years, greenhouse cultivation of plants has come to be widely used as an individual hobby, not only for business use. In particular, an increasing number of people enjoy potted gardening by installing simple small greenhouses for home use under the eaves of houses or on the verandas of condominiums.

[0003]

In general, such a small-sized greenhouse does not have a heating facility from the economical point of view, and therefore the temperature difference between the daytime and the nighttime is large in the winter, and the greenhouse is nighttime. There is a problem that the soil floor temperature of the planters and flower pots installed inside the plant will drop significantly, adversely affecting the cultivated plants. Further, if the heating device is installed in the greenhouse, such a point can be solved, but the cost and maintenance cost such as electricity cost are high, and it is not practical as a simple type small greenhouse for home use of this kind.

Therefore, the main object of the present invention is to efficiently heat the bottom of a pot for plant cultivation placed on the floor in a greenhouse or the soil spread on the floor, and with a small amount of energy, the entire floor can be heated. It is to provide a low-cost and economical simple greenhouse house that can uniformly heat plants.

[0005]

In order to achieve the above object, the present invention takes the following technical means. That is, the greenhouse house according to the present invention is a greenhouse house A whose wall surface is formed of a transparent or translucent sheet, and the heat insulating unit B is laid on the floor surface of the house, and the heat insulating unit is B is a wire heating element 2 in which a short carbon fiber is used as a core wire 2a and the core wire 2a is covered with an insulating coating material 2b. The lead wires 9 are arranged horizontally with a space, and the lead wires 9 are extended from the heat retaining unit to the outside.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described below based on an embodiment shown in the drawings. 1 to 4, reference numeral A
Is a greenhouse house according to the present invention, which is transparent or translucent to a skeleton assembled by a plurality of columns 4 ... Standing at appropriate intervals and a cross beam 5 bridged to these columns. A wall surface 6 is formed by applying a sheet material. The sheet material forming the wall surface 6 is preferably a resin film of vinyl or the like, a resin, a glass plate or the like. Moreover, it is not necessary to form all the surfaces of the wall surface 6 with a transparent sheet material,
The sheet material may be formed of a transparent or semitransparent sheet material only on a surface sufficient to receive solar heat.

In the present invention, the heat insulation unit B is laid on the floor surface of the greenhouse A. The heat insulating unit B comprises a linear heating element 2 in which a carbon short fiber is used as a core wire 2a and the core wire 2a is covered with an insulating coating material 2b via a woven or knitted cloth 2c of heat resistant fiber to have a proper thermal conductivity. The metal plate 1 and the pedestal 3 formed of a heat insulating material are horizontally arranged with an appropriate gap. The metal plate 1 is made of a metal excellent in corrosion resistance in addition to thermal conductivity, such as stainless steel or brass,
Copper or the like is preferable, but iron may be used when the surface is covered with the cover sheet 8 as described later. By disposing the metal plate 1 having good thermal conductivity above the linear heating element 2 in this way, the heat of the linear heating element is not locally biased, and the entire area of the metal plate 1, that is, the upper surface of the heat retaining unit A is provided. It can be transmitted to the entire area without any unevenness, and the plant cultivation container placed on the heat retaining unit can be evenly heated.

In this embodiment, the linear heating element 2 is hermetically sealed by the upper and lower heat-resistant resin sheets 7 and 7 and is kept at a predetermined interval, but the resin sheets 7 and 7 are omitted. It may be arranged directly between the metal plate 1 and the base plate 3. Further, as shown in FIG. 2, it is preferable to cover and seal the entire outer surface of the unit including the metal plate 1 and the heat insulating base plate 3 with a water resistant cover sheet 8. However, depending on the material of the metal number and the place of use. It is also possible to omit this cover sheet 8.

Further, the heat insulation unit B of the greenhouse house A
A lead wire 9 for energizing is extended to the outside, and an outlet 10 is provided at the tip thereof. This outlet 10
May be a plug having a pair of insertion protrusions as shown in the figure, or may be one having an insertion hole into which the plug is inserted. Further, in this embodiment, the voltage converter 1 having the adjustment dial 11 in the middle of the lead wire 9 is provided.
2 is provided so that the temperature of the heat retaining unit B can be adjusted. Further, a pair of left and right chucks 13, 13 serving as inlets and outlets are provided on the front wall surface of the greenhouse house A, and the front wall surface can be opened by moving the liner 13a up and down. This chuck 1
The number 3 may be one, or a general opening / closing door may be used instead of the chuck. Incidentally, reference numeral 14 in the drawing denotes a ventilation port for ventilation.

The above greenhouse greenhouse A is used by accommodating a pot or the like for plant cultivation inside. In the daytime, it is heated by using solar heat, and in the cold season or at night, the heat insulation unit A is heated by connecting the outlet 10 of the lead wire 9 to the power source, and the pots for plant cultivation placed on the heat insulation unit are heated. The bottom is warmed and the pot is heated and kept warm. It is also possible to lay the soil on the upper surface of the heat retaining unit A to form a soil floor and cultivate the plants directly on the soil floor. Further, by changing the voltage flowing through the linear heating element 2 with the adjustment dial 11 of the voltage converter 12, the temperature can be arbitrarily adjusted according to the outside air temperature and the type of plant to be cultivated. Regarding the temperature of the soil and the soil floor inside the pot, you can judge the appropriate temperature by touching it by inserting your fingers into the soil,
It is more convenient if a thermometer that can measure the soil temperature is installed.

FIG. 5 shows another embodiment of the linear heating element 2 used in the heat insulating unit according to the present invention.
a is formed by assembling a plurality of thin wire materials into one core wire. In the previous embodiment shown in FIG. 4, short carbon fibers are aggregated and directly formed into a single core wire. Therefore, the diameter of the core wire is likely to be nonuniform over the entire length, and the strength is also slightly high. Inferiorly, in the embodiment of FIG. 5, although the core wire is formed of aggregated bundles of short carbon fibers as a whole, the diameter of the core wire can be formed uniformly over the entire length. The resistance is made equal to prevent uneven heat generation and abnormal heat generation, and a linear heating element having high quality and strength can be obtained.

Although the embodiments which are considered to be representative of the present invention have been described above, the present invention is not necessarily limited to the structures of these embodiments. For example, greenhouse house A
The heat retaining unit B may be installed on all the shelves inside. Further, the outer shape and size of the greenhouse house A can be arbitrarily changed. In addition, the present invention can be implemented by appropriately modifying it within the scope of providing the constituent elements, achieving the object of the present invention, and achieving the following effects.

[0013]

EFFECT OF THE INVENTION Since the present invention is constructed as described above, the bottom of the pot for plant cultivation placed on the greenhouse unit installed on the floor of the greenhouse is effectively warmed and potted soil is obtained. Although it is possible to maintain the temperature, especially in the present invention, the heat of the linear heating element is locally provided by disposing a metal plate having good thermal conductivity above the linear heating element. It can be transmitted almost uniformly over the entire area of the metal plate, that is, over the entire upper surface of the heat retaining unit, and the plants can be evenly grown without unevenness. By using a strong linear heating element with good thermal efficiency and by directly heating the bottom of the pot or the soil floor, it is possible to effectively keep the pot soil warm for a long time with a small amount of power consumption. Radiant heat emitted from the heating element Therefore, it can be expected insulating effect of the greenhouse,
Further, there are various excellent effects such that it can be provided at a low price because of its simple structure.

[Brief description of drawings]

FIG. 1 is a perspective view showing one embodiment of a greenhouse house according to the present invention.

FIG. 2 is a partially cutaway perspective view of the heat retaining unit according to the present invention.

FIG. 3 is a plan view of the heat retaining unit.

FIG. 4 is a perspective view of a linear heating element used in the heat retaining unit.

FIG. 5 is a perspective view showing another embodiment of the linear heating element.

[Explanation of symbols]

 A greenhouse greenhouse B heat insulation unit 1 metal plate 2 linear heating element 2a core of linear heating element 2b coating of linear heating element 3 platform 9 lead wire

Claims (1)

[Claims] 1. A greenhouse house A whose wall surface is formed of a transparent or translucent sheet, wherein a heat insulating unit B is laid on the floor surface of the house, and the heat insulating unit B comprises carbon short fibers as core wires. 2a, and the core wire 2a is an insulating coating material 2
Metallic plate 1 having a linear heating element 2 coated with b and excellent thermal conductivity
A greenhouse house in which a lead wire 9 is extended from the heat insulation unit B to the outside by horizontally arranging the heat insulation unit B and the base 3 formed of a heat insulating material with an appropriate gap.