JPH03219584A - Heater for planting and controller therefor - Google Patents

Abstract

PURPOSE:To facilitate a protective measure against coldness of winter for a plant that cannot endure the coldness by inserting an insert member containing an electric heating member therein, in the soil in which the plant is planted. CONSTITUTION:A soil 2 is filled in a plant pot 1, and a foliage plant 3 is planted in the soil 2. A heater 4 for planting is used by being inserted into the soil 2, whereby the root of the plant 3 planted in the soil 2 is heated. The heater 4 is connected to a controller 6. The heater 4 is electrified by the device 6, when the temperature of the place where the plant 3 is planted becomes not more than a predetermined level, and the electrification to the heater 4 is stopped, when the temperature of the place becomes not less than the predetermined. A protective measure against coldness of winter for a plant that cannot endure the coldness, can be facilitated thereby, and the power consumption can be reduced.

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a heater for growing plants and its! The present invention relates to a plant growth heater and its control device, and particularly relates to a plant growth heater configured to warm plants so that plants sensitive to cold can survive the winter.

BACKGROUND ART For example, when cultivating foliage plants that are sensitive to cold temperatures, they are often grown indoors during the winter months when temperatures are low.

However, even when growing houseplants indoors, if the heating is turned off at night, the room temperature may drop and the plants may wither. For this reason, conventionally, in order to protect the cold-sensitive plants from the winter cold, they were planted in flowerpots equipped with heaters. For example, as a flower pot with a heater of this kind,
30, Japanese Patent Application Laid-Open No. 59-143526, or Japanese Patent Application Laid-Open No. 61-17793O, there are flower pots with a built-in heater.

Problems to be Solved by the Invention However, with the heater-equipped flowerpot, the size of the ornamental plant that can be planted is determined by the flowerpot, and it is necessary to purchase several types of heater-equipped flowerpots depending on the size of the ornamental plant. There are challenges. In addition, a flower pot with a heater has a structure in which the entire flower pot body is heated, and there is a problem in that the structure of the heater part is large-scale and therefore consumes extra power.

Therefore, an object of the present invention is to provide a heater for growing plants and a control device thereof that solve the above-mentioned problems.

Means for Solving the Problems The present invention comprises: a hollow rod-shaped insert member that is inserted into the soil in which a plant is planted; an electric heating member that is inserted into the insert member and heats the roots of the plant via the insert member; , becomes more.

Further, the present invention provides a heater control means that energizes the electric heating member when the temperature of the place where the plants are planted falls below a predetermined temperature, and stops energizing the electric heating member when the temperature rises to a predetermined temperature or higher. Become.

By inserting a plug-in member with a built-in electric heating element into the soil, it warms the plant roots and protects plants from the cold so that they can survive the winter, regardless of the size of the plant pot or container in which the plant is planted. protect.

By energizing the heating member to warm the roots of the plant when the temperature has fallen below a predetermined temperature, it is possible to save power consumption of the electric heating member when the temperature is high.

Embodiment FIGS. 1 to 4 show an embodiment of a plant growing heater and its control device according to the present invention.

In FIG. 1, a flowerpot 1 is filled with ±2 flowers, and for example, a foliage plant 3, which is sensitive to cold, is planted in ±2.

4 is a heater for growing plants (hereinafter simply referred to as a heater), ±
2 and used to warm the roots of the ornamental plant 3 planted at ±2. Further, the heater 4 is connected to a control device 6, and the control device 6 is connected to an AC adapter 7.

When the AC adapter 7 is plugged into a household outlet 8 , it converts 100 V AC into a low DC voltage (for example, about 6 V) and supplies it to the control device 6 .

As shown in FIGS. 2 to 4, the heater 4 includes a hollow rod-shaped insert member 9 and an internal space 9a of the insert member 9.
Wire-like nichrome wire heater (electric heating member) inserted into
10, a synthetic resin handle 11 provided integrally with the insertion member 9, a connection cable 12 extending from the end of the handle 11, and a male connector 13 provided at the end of the connection cable 12. It becomes more.

The insertion member 9 is made of a good heat conductive material such as an aluminum pipe, and its tip 9b is shaped like a flat arrowhead, so that it can be easily inserted into the flower pot 1 at ±2. The nichrome wire heater 10 is insulated with a vinyl chloride tube, folded in half, inserted into the internal space 9a, and protected by the insertion member 9.

Further, both ends of the nichrome wire heater 10 are electrically connected to a connection cable 12. Since the handle 11 is molded integrally with the insert member 9, it is made of a synthetic resin material with low thermal conductivity. Further, the male connector 13 is connected to female connectors 141 to 143 of the control device 6. As shown in FIG. 1, the control device 6 has a plurality of female connectors 141 to 143 (three in this embodiment) on its top surface, a thermometer 15 for measuring room temperature, and a thermometer 15 that measures the room temperature. Onchu)
An indicator lamp 16 for displaying the information is provided. Further, inside the control device 6, a heater control circuit 17 shown in FIG. 5 is provided.

Heater control circuit 17 supplies a predetermined voltage to each female connector 141-143 by connecting power terminals 18a and 18b to connector 19 from AC adapter 7. A bimetallic switch 20 is configured to close when the room temperature drops below a predetermined temperature (for example, below 10° C.), and opens when the room temperature rises above a predetermined temperature due to irradiation with sunlight. Therefore, when the bimetal switch 20 closes due to a drop in room temperature, each female connector 141~
143 is supplied with a predetermined voltage, the indicator lamp 16 made of a light emitting diode lights up to indicate that the heater 4 is generating heat.

When using the heater 4, it is sufficient to simply connect the connector 13 of the heater 4 to the female connector 141 of the control device 6 and insert the insertion member 9 into the ±2 positions of the flower pot 1. and,
When the room temperature drops below a predetermined temperature, such as at night, the bimetal switch 20 closes and the nichrome wire heater 10 is energized.

Therefore, the nichrome wire heater 10 is set at an appropriate temperature (for example, +15
deo) and the heat is transferred to ±2 via the aluminum pipe insert member 9. Therefore, the roots of the ornamental plant 3 planted at ±2 are heated by the heat transfer from the nichrome wire heater 1o. The temperature is kept above room temperature. Thereby, the ornamental plants 3 that are sensitive to cold weather can survive the winter without dying due to a drop in temperature.

Since the heater 4 for plant synthesis of the present invention only needs to be inserted into the soil 2, the flowerpot 1 that has been used since the summer can be used as is, so the heating operation is simple as described above, and it is not necessary to attach a heater as in the past. There is no need to repot it into a flower pot. or,
Just by energizing the nichrome wire heater 10 housed in the hollow rod-shaped insert member 9, the nichrome wire heater 10 is energized only when the room temperature drops below a predetermined temperature, so it consumes less power and is more economical than a conventional flower pot with a heater. It is. Moreover, since the insertion member 9 is inserted closer to the roots of the ornamental plant 3, it is possible to efficiently heat the ornamental plant 3 with less electric heating energy.

In addition, as shown in FIG. 6, when a large foliage plant 22 is planted in a rectangular flowerpot 21, or when a plurality of foliage plants 22.3 are planted, multiple plants can be grown. The heaters 4 may be inserted at predetermined intervals within ±2.

As mentioned above, the control device 6 has three female connectors 1.
41 to 143 are arranged, one control device 6
Up to three heaters for growing plants can be used.

A modification of the present invention is shown in FIGS. 7 and 8. In both figures, the plant growth heater 23 has a pair of insertion members 25a and 25b extending parallel to the handle 24. Nichrome wire heaters (not shown) are inserted into the insert members 25a and 25b as in the above embodiment. Since this heater 23 for growing plants has a pair of insertion members 25a and 25b, it is suitable for use in areas where the temperature drops significantly at night.

Of course, three or more insert members and nichrome wire heaters may be provided. Furthermore, the control device may be provided with three or more female connectors so that three or more heaters can be used simultaneously.

Moreover, it goes without saying that the heater for growing plants of the present invention can be used in places other than indoors.

Effects of the Invention As described above, the heater for growing plants according to the present invention can efficiently heat the roots of plants by simply inserting the plug-in member with a built-in electric heating member into the soil in which the plants are planted, and can protect plants that are sensitive to cold. You can easily take measures to survive the winter. Furthermore, the size of the flowerpot or container in which the plant is planted can be accommodated by increasing the number of heaters, and power consumption is also reduced because only the roots are heated, rather than the entire flowerpot.

In addition, the control device for the heater for growing plants only energizes the electric heating member when the temperature of the place where the plant is planted falls below a predetermined temperature, so it does not energize the electric heating member during the day when the temperature is relatively high. Since the roots of plants can be automatically heated only when the temperature is low, it has the advantage of saving power consumption and being economical.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an embodiment of a plant growing heater and its control device according to the present invention, FIGS. 2 to 4 are a plan view, a front view, and a vertical sectional view of the plant growing heater, and FIG. is a circuit diagram of a heater control circuit, FIG. 6 is a perspective view showing an example of using a plurality of heaters for growing plants, and FIGS. 7 and 8 are perspective views for explaining the present invention in detail, respectively. It is. DESCRIPTION OF SYMBOLS 1... Flowerpot, 3... Ornamental plant, 4.23... Heater for plant growth, 6... Control device, 7... AC adapter, 9.25a, 25b... Insert member, 9a・
...Internal space, 9b...Tip, 2o...Bimetal switch, 141-143...Female connector, 17...Heater control circuit.

Claims (3)

[Claims] (1) It consists of a hollow rod-shaped insert member that is inserted into the soil where a plant is planted, and an electric heating member that is inserted inside the insert member and heats the roots of the plant via the insert member. Features: A heater for growing plants. (2) Heater control means that energizes the electric heating member when the temperature of the place where the plant is planted falls below a predetermined temperature, and stops energizing the electric heating member when the temperature reaches a predetermined temperature or higher; A control device for a heater for growing plants, characterized in that: (3) The control device for a heater for growing plants according to claim (2), wherein the heater control means is provided with a plurality of connection terminals to which electric heating members are connected.