JPH05316878A - Device for insulating heat of flowerpot - Google Patents

Abstract

PURPOSE:To obtain a device for insulating heat of a flowerpot, capable of keeping soil in the flowerpot at a given temperature without requiring high voltage. CONSTITUTION:An electrode 4 connected to an electric source is attached at least to the wall face of a flowerpot 2 and the face furnished with the electrode 4 is equipped with a facial heating element 3 coated with an exothermic resistant coating compound containing flat plated metal powder having 5-100mum average particle diameter and 0.01-20mum thickness in a given ratio based on 100 pts.wt. solid content of resin.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat retaining device for a flower pot, and more particularly to a heat retaining device for a flower pot for maintaining the temperature required for germination and flowering in a flower pot at a predetermined temperature to promote the growth of plants. Is.

[0002]

2. Description of the Related Art FIG. 4 is a sectional view of a conventional flowerpot heat retaining device disclosed in, for example, Japanese Utility Model Laid-Open No. 64-56640.
FIG. 3 is a cross-sectional view of a sheet heating element used for this.

The flowerpot heat retaining device 21 is a flowerpot 22.
And a protective case 23 that covers this. The flowerpot 22 is provided with a far-infrared ray generating portion 24 for irradiating the plant with far-infrared energy on a flat surface portion of the brim portion, and a planar heating element 25 to which a conductive fabric 26 is attached is provided on an outer peripheral surface of a side wall. ..

The sheet heating element 25 is a sheet-shaped heating element sheet 25a made of elastomer filled with conductive carbon black or the like, and both surfaces thereof are covered with a cover material 25b such as vinyl chloride.

[0005]

However, since the above-mentioned conventional sheet heating element 25 uses the conductive carbon black having a high electric resistivity as the conductive filler, the sheet heating element 25 obtained is High volume resistivity,
High voltage was required to obtain the desired heat generation. Therefore, if the cover material 25b is peeled off for some reason, there is a risk of electric shock, which is not preferable for safety.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a flowerpot heat retaining device capable of keeping the soil of a flowerpot at a predetermined temperature without requiring a high voltage.

[0007]

According to a first aspect of the present invention, there is provided a plant pot heat retaining device, wherein an electrode connected to a power source is provided on at least a wall surface of the plant pot, and a resin solid content of 100 parts by weight is provided on a surface provided with the electrode. , Average diameter 5 to 100 μm, thickness 0.01 to
A heat-resistant coating material containing a flat metal plating powder of 20 μm in a predetermined weight ratio is applied.

In the flowerpot heat-retaining device according to the second aspect of the present invention, an electrode connected to a power source is provided on at least the wall surface of the protective case for protecting the flowerpot, and the resin solid content 10 is provided on the surface provided with the electrode.
0 part by weight, average diameter 5 to 100 μm, thickness 0.0
A heat-resistant coating material containing a flat metal plating powder of 1 to 20 μm in a predetermined weight ratio is applied.

[0009]

In the first aspect of the present invention, since the sheet heating element formed by applying the heating resistance paint is provided on at least the wall surface of the flower pot, the soil of the flower pot is warmed. In the second invention, since the sheet heating element is provided on at least the wall surface of the protective case, the heat generated from the sheet heating element is transferred to the soil through the flowerpot.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a sectional view of a flowerpot heat retaining apparatus showing an embodiment of the first invention, FIG. 2 is a detailed view of a portion A shown in FIG. 1, and FIG.
FIG. 4 is a cross-sectional view of a flowerpot heat insulating device showing an embodiment of the second invention. In the drawings, the same reference numerals denote the same members.

In FIGS. 1 and 2, reference numeral 1 is a flowerpot heat retaining apparatus of the first invention, which is composed of a flowerpot 2 and a planar heating element 3 provided on a side wall thereof. The sheet heating element 3 is formed by applying a heating resistance paint containing a specific flat metal plating powder and a resin component to the outer peripheral surface of the side wall of the flower pot 2 to form a heating resistor coating film. This film thickness is not particularly limited, but is 10 to 500 μm.

Examples of the base material constituting the flat metal-plated powder include sericite, muscovite, phlogopite, glass and plastic flakes, as disclosed in Japanese Patent Laid-Open No. 3-145090. Examples of the metal include nickel, copper, silver and the like. The flat metal plating powder has an average diameter of 5 to 100 μm and a thickness of 0.01 to 2
It is in the range of 0 μm. A crosslinkable resin is used as the resin component, and examples thereof include a polyester resin containing an unsaturated group, a hydroxyl group, a carboxyl group, an ester group, an amino group or the like, an acrylic resin, an epoxy resin, a silicone resin, or the like.

The flat metal plating powder and the resin component are mixed in such a proportion that the flat metal plating powder is in the range of 40 to 150 parts by weight with respect to 100 parts by weight of the solid content of the resin component. There is. Sheet heating element 3 obtained by this
Volume resistivity of 0.001Ω · cm or more, 1Ω · c
The range is less than m.

Reference numeral 4 denotes an electrode made of a metal tape such as copper or silver, which is arranged on the upper surface of the sheet heating element 3 provided on the outer peripheral surface of the side wall of the flower pot 2 so as to face each other, and is coated with a heating resistance paint. After being applied and cured, it is fixed on the obtained coating film with an adhesive. The lead wires 7 connected to the voltage regulator 8 are connected to the pair of electrodes 4, respectively.

Reference numeral 5 is a top coat film made of urethane resin having excellent waterproof property, and covers the sheet heating element 3 and the electrode 4.
Reference numeral 6 denotes an outer coat made of, for example, vinyl chloride and applied to protect the sheet heating element 3 and the top coating film 5. The voltage regulator 8 is for adjusting the voltage supplied to the planar heating element 2, and can obtain, for example, an AC voltage of 0 to 30V.

In the plant pot heat retaining device constructed as described above, since the volume specific resistance value of the sheet heating element 3 is within the above-mentioned range, the sheet heating element 3 is caused to generate heat at a low voltage and the plant pot 2 is heated. The soil inside can be kept warm. For example, although it depends on the compounding ratio of the flat metal-plated powder and the resin component and their materials, it is about 30 ° C. at 15 V and 15 ° C.
Approximately 60 ° C at V, and approximately 80 at 20-30V
An exothermic temperature of ° C is obtained.

Next, an embodiment of the second invention will be described with reference to FIG. This flowerpot heat retention device 11 is a flowerpot 12
And a protective case 13 provided with the sheet heating element 3 on the side wall. The sheet heating element 3 is provided along with the electrode 4 on the inner peripheral surface of the side wall of the protective case 13, generates heat based on the voltage of the voltage regulator 8, and keeps the soil of the flowerpot 12 warm.

In the above description, the side wall of the flowerpot 2,
The planar heating element 3 and the electrode 4 are provided on the side wall of the protective case 13, respectively.
Although the case in which the and are provided is shown, the sheet heating element 3 and the electrode 4 may be provided on the outer surface of the bottom portion thereof. Moreover, although the voltage supplied to the planar heating element 3 has been described as alternating current, the planar heating element 3 may be powered by using a dry battery or a storage battery. Further, a temperature detector for taking in temperature information of the soil or the heating surface of the flower pots 2 and 12 is provided, and a circuit having a function of performing voltage adjustment and energization control based on the temperature information is added to perform temperature control. You can

The coating material for forming the sheet heating element 3 was formed as follows. Ni-plated sericite (Brand name "METAL-ON, NSER-6", average diameter 30μ
m, thickness 3 μm, metal content 30% by weight, made by Nisso Metal Chemical Co., Ltd. 29.6 g, acrylic resin paint (trade name “High Urethane No. 5000 Clear 51HA”, solid content 40.8% by weight, Made by Nippon Oil & Fat Co., Ltd.) 58.7 g
After stirring for 30 minutes with a dissolver, 11.7 g of a curing agent (trade name "high urethane curing agent HA", solid content 48% by weight, manufactured by NOF CORPORATION) was mixed. Then, a diluted thinner (trade name "urethane thinner W", manufactured by NOF CORPORATION) was used to dilute the Ford cup # 4 to a viscosity of 15 seconds to obtain a heat-resistant paint. The content of the Ni-plated sericite powder in the obtained coating material was 100 parts by weight based on 100 parts by weight of the coating resin solid content.

Next, Epico. No. was applied to the outer peripheral surfaces of the side walls of the commercially available flower pots 2 and 12 as a bisque stopper. 700
0 primer (trade name of NOF CORPORATION) was applied. Further, the above-mentioned heat resistance coating is applied on top of this to a dry film thickness of 1
After air-spraying so that it becomes 00μ, 140
It was baked and dried at 30 ° C. for 30 minutes to obtain a sheet heating element 3. The volume resistivity value of the obtained sheet heating element 3 is 0.02 Ω · cm.
Met. A urethane resin coating (a mixture of High Urethane 2000 Clear 21HA and a high urethane curing agent HA in a 5: 1 weight ratio mixture, each of which is a trade name of NOF CORPORATION) is applied to the exothermic coating film to form a top coating film 5. Let Then, a vinyl chloride resin-based paint (Vinyol 200, trade name of NOF CORPORATION) was applied as an outer cover 6 to form an outer coating film.

[0021]

According to the first aspect of the present invention, the average diameter is 5 to 100 with respect to 100 parts by weight of the resin solid content on at least the wall surface of the flower pot.
Since the heating resistance paint containing the flat metal plating powder having a thickness of 0.01 μm and a thickness of 0.01 to 20 μm in a predetermined weight ratio is applied, the second invention is at least the wall surface of the protective case of the flowerpot. Since the heating resistance paint is applied to the above, the soil of the flowerpot can be kept warm at a lower voltage than before, and there is no danger of electric shock.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a flowerpot heat retaining apparatus showing an embodiment of the first invention.

FIG. 2 is a detailed view of a portion A of FIG.

FIG. 3 is a cross-sectional view of a flowerpot heat retaining apparatus showing an embodiment of the second invention.

FIG. 4 is a cross-sectional view of a conventional plant pot heat insulating device disclosed in Japanese Utility Model Laid-Open No. 64-56640.

FIG. 5 is a cross-sectional view of a conventional sheet heating element disclosed in Japanese Utility Model Laid-Open No. 64-56640.

[Explanation of symbols]

 1 Heat insulation device for flower pot 2 Flower pot 3 Sheet heating element 4 Electrode 5 Top coat film 6 Envelope 7 Lead wire 8 Voltage regulator

Claims (2)

[Claims] 1. An electrode connected to a power source is provided on at least a wall surface of a flowerpot, and a resin solid content of 100 is provided on a surface provided with the electrode.
With respect to parts by weight, average diameter 5 to 100 μm, thickness 0.01
A heat retention device for a flowerpot, characterized in that a heating resistance paint containing a flat metal plating powder of -20 μm in a predetermined weight ratio is applied. 2. An electrode connected to a power source is provided on at least a wall surface of a protective case for protecting a flower pot, and an average diameter of 5 to 10 is provided on a surface provided with the electrode, with respect to 100 parts by weight of a resin solid content.
A heat retention device for a flowerpot, characterized in that a heating resistance paint containing 0 μm and a flat metal plating powder of 0.01 to 20 μm in a predetermined weight ratio is applied.