JP3193527U - Small animal breeding heater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heater for breeding small animals and the like, which can reduce power consumption and reduce electricity cost by preventing heat of a surface heater from being transmitted to an installation surface and escaping. SOLUTION: A heater 1 for breeding small animals, etc. has a heater main body 2 in which a power cord 6 is connected to a sheet-shaped surface heater 4 via a connector 5, and a heat resistant material attached to the entire lower surface of the surface heater 4. It is made of a heat insulating sheet 3 having a property, and a foaming material such as crosslinked foamed polyethylene is used as the heat insulating sheet 3. [Selection diagram] Fig. 1

Description

  This device is used to breed small animals by heating the inside of a cage or cage for raising small animals and birds, or by heating the water in an aquarium containing ornamental fish. The present invention relates to a small animal rearing heater used.

  Conventionally, as such a heater, there is one using a planar heating element as a heat source. The heater shown in FIG. 7 is one in which a power cord 102 is electrically connected to a sheet-like surface heater 100 via a synthetic resin connector 101. A plug 103 to be plugged into a commercial power outlet is attached to the tip of the power cord 102.

  The surface heater 100 includes, for example, a heat generating portion 100A having a planar heating element 104 having a characteristic (generally referred to as “PTC characteristic”) in which an electric resistance value increases with increasing temperature, and a heat generating temperature of the heat generating part 100A. A temperature detecting portion 100B having a second planar heating element (not shown) for determining the above is provided on the insulating sheet in a divided area (see, for example, Patent Document 1).

  When using the above-mentioned heaters for raising small animals, etc., as shown in FIG. 8, the surface heater 100 is set on the installation surface P such as a floor, a table, etc., and the breeding container, cage, water tank, etc. Is placed. Next, when the plug 103 is inserted into an outlet and the surface heater 100 is energized, the sheet heating element 104 generates heat. The planar heating element 104 is maintained at a set temperature, and the inside of the container and cage for breeding, the water in the aquarium, etc. are warmed to an appropriate temperature according to the small animals, small birds, ornamental fish, etc. to be bred.

Japanese Patent No. 4036859

  In the above-described heater for breeding small animals, the surface heater 100 is in surface contact with the installation surface P, so the heat of the surface heater 100 is transferred to the installation surface A and escapes. For this reason, the surface temperature of the surface heater 100 is lowered, and the planar heating element 104 performs a heat generation operation for maintaining the set temperature. As a result, there is a problem that the power consumption increases and the electricity cost increases.

  This device was made by paying attention to the above-mentioned problems. By preventing the heat of the surface heater from being transmitted to the installation surface and escaping, this small animal can reduce power consumption and keep electricity costs low. It aims at providing the heater for breeding.

  A heater for breeding small animals or the like according to the present invention includes a heater body in which a power cord is connected to a sheet-like surface heater via a connector, and a heat-insulating sheet having heat resistance attached to the lower surface of the surface heater.

  In the breeding heater for small animals and the like having the above-described configuration, the surface heater is placed on the installation surface via the heat insulating sheet, so that the heat of the surface heater is prevented from being transmitted to the installation surface and escaped by the heat insulating sheet. In addition, since the heat of the surface heater is reflected by the heat insulating sheet, a decrease in the surface temperature of the surface heater is suppressed, and the planar heating element does not need to perform a heat generation operation more than necessary to maintain the set temperature. As a result, the power consumption is small and the electricity bill is low.

  In the above-described configuration of the present invention, the surface heater is typically provided with a planar heating element between insulating films made of synthetic resin having heat resistance that are stacked one above the other.

  The heat insulating sheet is preferably made of a foam material such as cross-linked foamed polyethylene. Cross-linked foamed polyethylene is a sheet-like high-foamed product that is heated and foamed up to 5 to 50 times by irradiating an electron beam to polyethylene. Is preferred.

  According to this embodiment, since the foamed material is compressed and deformed by receiving a load, even if there are irregularities on the lower surface and the installation surface of the container, birdcage, and water tank, it is absorbed and the container is stably supported. In addition, since the foam material is compressed and deformed with respect to the load applied to the surface heater, it is possible to prevent the surface heater from being deformed or damaged due to the concentrated load.

  Furthermore, the small animal rearing heater according to the present invention is such that the surface heater and the heat insulating sheet attached to the lower surface of the surface heater are covered with a case body having thermal conductivity.

  In the breeding heater for small animals having the above-described configuration, the surface heater and the heat insulating sheet are accommodated in the case body, so that the surface heater and the heat insulating sheet are protected from external force and durability is improved.

  According to this device, since the decrease in the surface temperature of the surface heater can be suppressed by the heat insulating sheet, the power consumption is small and the electricity cost is low.

It is a perspective view which shows the structure of the heater for breeding small animals etc. which is one Example of this device. It is a top view which shows the external appearance of the heater main body of the heater for breeding small animals of FIG. It is a figure for demonstrating the effect | action of the heater for breeding small animals of this device. It is a figure which shows the usage example of heaters for breeding small animals. It is a figure which shows the other usage example of breeding heaters, such as a small animal. It is a front view which shows the other Example of this invention. It is a top view which shows a prior art example. It is a figure for demonstrating the effect | action of a prior art example.

  FIG. 1 shows a configuration of a small animal breeding heater 1 according to an embodiment of the present invention. Here, the small animals and the like collectively refer to small mammals such as hamsters, small reptiles such as lizards, and also include small birds and ornamental fish. As shown in FIGS. 4 and 5, the small animal breeding heater 1 heats the water in the cage 10 for breeding small animals and birds and in the aquarium 11 containing ornamental fish. In addition, it is interposed between the installation surface P such as a floor or a stand and the car 10 or the water tank 11.

  The heater 1 for breeding small animals in the illustrated example is composed of a heater body 2 and a heat insulating sheet 3 having heat resistance. The heat insulating sheet 3 is stuck on the entire lower surface of the surface heater 4 constituting the heater body 2. A double-sided pressure-sensitive adhesive tape whose both surfaces are adhesive surfaces is used for attaching the heat insulating sheet 3 to the lower surface of the surface heater 4, but an adhesive may be used.

  As shown in FIG. 2, the heater body 2 is obtained by electrically connecting a power cord 6 to a sheet-like surface heater 4 via a connector 5 made of synthetic resin. In the figure, reference numeral 7 denotes a plug attached to the tip of the power cord 6, which is inserted into a commercial power outlet. The heater body 2 of this embodiment has a set temperature fixed at a constant temperature (for example, 45 ° C.). However, a controller having a temperature adjustment knob may be provided at an appropriate position of the power cord 6 to change the set temperature. Good.

  The surface heater 4 is formed over almost the entire area of the insulating sheet 20 having a rectangular shape as a whole. The insulating sheet 20 is composed of an insulating film made of a synthetic resin having heat resistance that is stacked up and down, and a rectangular planar heating element 22 for heating is provided between the insulating films. The planar heating element 22 is formed by printing on the surface of one insulating film using an ink mainly composed of conductive carbon particles and a plastic matrix resin. The planar heating element 22 has a positive temperature coefficient, and has a characteristic that an electric resistance increases as the temperature rises, that is, a PTC characteristic.

The surface of the insulating film is further provided with a first electrode portion 23 composed of two linear electrodes 24 a and 24 b along both sides of the planar heating element 22 and the linear electrode at a position where the planar heating element 22 is equally divided. A second electrode portion 25 composed of one linear electrode 26 arranged in parallel with 24a and 24b is formed by printing using conductive ink.
The upper surface of the sheet heating element 22 and the first and second electrode portions 23 and 25 are covered with the other insulating film, and the two insulating films are integrated.

  The connector 5 connects the first and second electrode portions 23 and 25 of the surface heater 4 and the power cord 6, and is caulked to one end edge of the insulating sheet 20. Inside the connector 5, a temperature fuse arranged in a temperature control circuit (not shown) is incorporated.

  The heat insulating sheet 3 is made of a foam material made of cross-linked foamed polyethylene. This cross-linked foamed polyethylene is a sheet-like high-foamed product obtained by irradiating polyethylene with an electron beam and heating and foaming it up to 5 to 50 times. “Softlon S” (trade name) manufactured by Sekisui Chemical Co., Ltd. is suitable as this foaming material, is lightweight and heat resistant, and is excellent in water resistance and heat insulation due to closed cells, Rich in elasticity and excellent in buffering properties. Although the foam material having a thickness of 3 mm is used for the heat insulating sheet 3 of this embodiment, it is desirable to set the thickness to 3 mm or more and 5 mm or less in order to effectively exhibit the various characteristics described above.

  In addition, although the surface heater 4 of the said Example uses what has a PTC characteristic as the planar heating element 22, it is not necessarily restricted to it. Moreover, although the surface heater 4 of the said Example uses the planar heating element 22 as a heat source, it may use a nichrome wire.

  As shown in FIG. 3, in the heater 1 for breeding small animals having the above-described configuration, the surface heater 4 is placed on the installation surface P via the heat insulating sheet 3, so that the heat of the surface heater 4 is transmitted to the installation surface P. Is prevented from running away. Moreover, since the heat of the surface heater 4 is reflected by the heat insulating sheet 3 as indicated by an arrow in the figure, a decrease in the surface temperature of the surface heater 4 is suppressed, and the planar heating element 22 maintains the set temperature. Therefore, it is not necessary to perform heat generation more than necessary. As a result, the power consumption is small and the electricity bill is low.

  In addition, since a foamed material such as cross-linked foamed polyethylene is used as the heat insulating sheet 3, the heat insulating sheet 3 undergoes compressive deformation under a load, and there are irregularities on the lower surface and the installation surface P of the car 10 and the water tank 11. Also, the car 10 and the water tank 11 are stably supported. Moreover, since the heat insulation sheet 3 is compressively deformed with respect to the load applied to the surface heater 4, it is possible to prevent the surface heater 4 from being deformed or damaged due to the concentrated load.

In the above-described embodiment, the surface heater 4 and the heat insulating sheet 3 attached to the lower surface of the surface heater 4 are in an exposed state. However, as in the embodiment shown in FIG. It may be made to cover with the case body 30 made of a synthetic resin having properties.
According to this embodiment, since the surface heater 4 and the heat insulation sheet 3 are accommodated in the case body 30, the surface heater 4 and the heat insulation sheet 3 are protected from external force, and durability is improved. In the illustrated example, the case body 30 is formed by abutting the opening edges of the upper case 31 and the lower case 32, but the case body 30 is not limited to such a structure.

[Experimental example]
After placing the heater 1 for breeding small animals of the above-described Examples on a wooden table having a thickness of 10 mm, applying an AC voltage of 100 V and energizing continuously for 4 hours, the power consumption was measured. The room temperature in the laboratory is maintained between 25 ° C. and 26 ° C., and the humidity is maintained at 50%. When the size of the surface heater 4 is 196 mm × 227 mm, the power consumption is 9.4 Wh when the surface heater 4 is placed directly on the installation surface, whereas the power consumption between the installation surface and the lower surface of the surface heater 4 is When the heat insulating sheet 3 having a thickness of 3 mm was interposed therebetween, the power consumption was 8.1 wh.

  In addition, when the surface heater 4 having a size of 240 mm × 312 mm was used under the same conditions, the power consumption was 16.5 Wh when the surface heater 4 was placed directly on the installation surface. When the heat insulating sheet 3 having a thickness of 3 mm was interposed between the installation surface and the lower surface of the surface heater 4, the power consumption was 14.2wh.

1 Heater for rearing small animals 2 Heater body 3 Heat insulation sheet 4 Surface heater 5 Connector 6 Power cord 22 Planar heating element 30 Case body

Claims (4)

  A heater for breeding small animals or the like, comprising a heater body in which a power cord is connected to a sheet-like surface heater via a connector, and a heat-insulating sheet having heat resistance attached to the lower surface of the surface heater.   The said surface heater is a heater for breeding small animals or the like according to claim 1, wherein a planar heating element is provided between insulating films made of a synthetic resin having heat resistance which are stacked one above the other.   The heater for breeding small animals or the like according to claim 1, wherein the heat insulating sheet is made of a foam material such as cross-linked foamed polyethylene.   It is a heater for breeding small animals or the like according to any one of claims 1 to 3, wherein the surface heater and the heat insulating sheet attached to the lower surface of the surface heater are covered with a case body having thermal conductivity. Heater for breeding small animals.

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