Portable heater

Abstract

To provide a highly convenient portable heater which is easy to carry and can be used in various situations. [Solution] A heating mechanism 2 is incorporated into a flat pouch-shaped main body 1 that has an appropriate insulating layer 13 and can be opened and closed with a zipper 11. The heating mechanism 2 is arranged inside the insulating layer 13 and is composed of a planar heating element 21 that is powered by a low voltage such as a mobile battery, a control unit 22 that has a temperature sensor 23 and controls the flow of electricity to the planar heating element 21, and a switch unit and power supply connection unit provided on the surface of the main body.

Description

[Technical Field]

[0001] The present invention relates to a portable heater. [Background technology]

[0002] Portable appliances equipped with heating means have an electric heater built into an insulated container body, and are provided with a predetermined external structure depending on the intended use, as disclosed in Patent Documents 1 and 2. For example, Patent Document 1 shows a thermal storage material and an electric heater for heating the thermal storage material provided on the inner wall of an insulated box, and is used to keep stored items such as food and beverages warm while carrying them. Patent Document 2 also shows a trunk-type appliance with an electric heater inside that is used to dry clothes. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Utility Model Application Publication No. 1-100771. [Patent Document 2] Japanese Utility Model Application Publication No. 61-92395. Summary of the Invention [Problem to be solved by the invention]

[0004] The portable heaters disclosed in Patent Documents 1 and 2 have a certain capacity and are accordingly bulky, making them difficult to carry in a bag or backpack, and therefore not necessarily convenient. Furthermore, retort pouch foods have become popular in recent years and are often carried for meals when fishing or camping, but heating such foods requires the carrying of a separate heating stove with fuel, which is cumbersome. Furthermore, bulky items are not suitable for emergency use in the event of a disaster.

[0005] Therefore, the present invention proposes a new portable heater that is pouch-shaped and convenient to carry and can be used in a variety of situations. [Means for solving the problem]

[0006] The portable heater according to claim 1 of the present invention has a heating mechanism built into a flat, pouch-shaped main body that has an appropriate insulating layer and can be opened and closed with a zipper. The heating mechanism is characterized by being composed of a planar heating element that is placed inside the insulating layer and is powered by a low voltage such as a mobile battery, a control unit that has a temperature sensor and controls the flow of electricity to the planar heating element, and a switch unit and power supply connection unit provided on the surface of the main body.

[0007] It is small and portable, and can heat items stored inside the device by supplying low voltage power via a mobile battery or AC adapter. Therefore, it can easily heat food and drinks in a variety of situations and keep them warm.

[0008] The portable heater according to claim 2 of the present invention has a control unit with a push-button switch structure that allows for selection between off and three temperature levels, and also has a display function that displays the selected heating temperature in a colored light. The power supply is controlled based on the temperature sensor's detection corresponding to the selected heating temperature. The portable heater according to claim 3 has selectable heating temperatures of 40°C, 60°C, and 80°C, and is equipped with a safety unit that cuts off the power supply when it detects that the temperature inside the main body is above a predetermined level. This allows for the selection of heating temperatures according to the object to be heated, and the colored light display of the selected heating temperature makes it difficult to misinterpret the heating temperature, making it safe to use.

[0009] The portable heater according to claim 4 of the present invention has a main body with opening and closing fasteners on three sides of the periphery, and a laminated structure consisting of a surface layer made of a sturdy fabric, an insulating layer made of foamed polyethylene with an aluminum vapor deposition film attached, an insulating reinforcing layer made of flame-retardant polyester nonwoven fabric, various components of the heating mechanism, and an inner layer made of stain-resistant and water-repellent polyester twill fabric. The outer size of the main body is A size or less, making it lightweight and easy to carry, and also providing sufficient insulation and durability. [Effects of the Invention]

[0010] The configuration of this invention is as described above. It is pouch-shaped, easy to carry, and powered by low voltage such as a mobile battery, providing a convenient portable heater that can be used in a variety of situations, both indoors and outdoors. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is an external view of an embodiment of the present invention; [Figure 2] FIG. [Figure 3] FIG. [Figure 4] FIG. DETAILED DESCRIPTION OF THE INVENTION

[0012] Next, an embodiment of the present invention will be described. The portable heater shown in this embodiment has a heating mechanism 2 incorporated into a pouch-shaped main body 1. The main body 1 has a flat shape of size A or smaller, for example, 250 x 195 x 50 mm, with the long sides connected and opening and closing fasteners 11 on three sides of the outer periphery, allowing the storage and removal of an object to be heated B into a storage space A within the main body 1.

[0013] The main body 1 also has a laminated structure, and is formed from a surface layer 12 made of a robust fabric, such as felt or oxford fabric, a heat insulating layer 13 made of foamed polyethylene 132 with an aluminum vapor deposition film 131 attached, an insulating reinforcing layer 14 made of flame-retardant polyester nonwoven fabric, and an inner layer 15 made of stain-resistant and water-repellent polyester twill fabric.

[0014] The heat generating mechanism 2 comprises a planar heating element 21, a control unit (substrate) 22, a temperature sensor (NTC thermistor) 23 and a safety unit (thermostat 24a and temperature fuse 24b) 24, and is arranged between the insulating reinforcement layer 14 and the inner surface layer 15, and further comprises a switch unit 25 and a power supply connection unit 26 on the surface of the main body 1.

[0015] To explain each part of the heat generating mechanism 2 in detail, the planar heating element 21 is, for example, a graphene planar heating element of the resistance heating type, rated at DC 12 V 3 A (DC 9 V 2 A). Note that the planar heating element is not particularly limited to the above-mentioned type, and any heating element with a flat structure will suffice.

[0016] The control unit 22 controls the flow of electricity according to the selected heating temperature of the switch unit 25 based on the detection of the temperature sensor 23, and the safety unit 24 employs a thermostat (24a) as a first safety measure, which cuts off the circuit when the temperature inside the main body 1 reaches 103±5°C and makes a circuit connection at 90±15°C, and a temperature fuse (24b) as a final safety measure, which cuts off the power supply at a predetermined high temperature (around 150°C).

[0017] Switch unit 25 has a push-button switch structure that allows selection between off and three temperature levels, and also has a display function that displays the selected heating temperature in color (LED lights up); specifically, each time switch unit 25 is pushed, the light cycles through the following cycles: blue (40°C), green (60°C), red (80°C), and off (power supply cut off). Power supply connection unit 26 has a socket structure that accepts a power supply plug from a mobile battery (9V) or an adapter that converts AC 100V to DC 12V.

[0018] The portable heater described above heats an object to be heated B to a predetermined temperature by placing the object to be heated B in the internal space A of the main body 1, closing the fastener 11, connecting an external power source, and selecting the heating temperature with the switch unit 25. The portable heater of this invention is particularly compact, easy to carry, and can be used anywhere. Power can be supplied from an AC 100V power source via an AC adapter indoors, or from a mobile battery indoors or outdoors.

[0019] Temperature control can also be selected according to the item being heated. For example, 40°C can be selected for warming baby food, retort pet feed, and wet wipes, 60°C for heating canned coffee and steam towels, and 80°C for retort foods and packaged rice.

[0020] Therefore, it is convenient to use in various situations such as during disasters, power outages, in a car, or for simple heating at home. [Explanation of symbols]

[0021] 1 Main unit 11. Closure zipper 12 Surface layer 13 Insulation layer 131 Aluminum vapor deposition film 132 Polyethylene foam 14 Insulation reinforcement layer 15 Inner layer 2 Heat generation mechanism 21 Planar heating element 22 Control unit (board) 23 Temperature Sensor 24 Safety Department 24a Thermostat 24b thermal fuse 25 Switch section 26 Power supply connection

Claims

1. A portable heater in which a heat-generating mechanism is incorporated into a flat, pouch-shaped main body that has an appropriate insulating layer and can be opened and closed with a zipper, the heat-generating mechanism being placed inside the insulating layer and consisting of a planar heating element that is powered by a low voltage such as a mobile battery, a control unit that has a temperature sensor and controls the flow of electricity to the planar heating element, and a switch unit and power supply connection unit provided on the surface of the main body.

2. A portable heater as described in claim 1, wherein the switch section of the control section has a push-button switch structure for selecting between off and three temperature levels, and has a display function for displaying the selected heating temperature in a colored light, and the control section controls the power supply based on the detection of a temperature sensor corresponding to the selected heating temperature.

3. 3. The portable heater according to claim 2, wherein the heating temperature can be selected from 40°C, 60°C, and 80°C, and further comprises a safety part which cuts off the power supply when it detects that the temperature inside the main body is above a predetermined temperature.

4. 3. A portable heater according to claim 1 or 2, wherein the main body has opening and closing fasteners on three sides of the outer periphery, and has a laminated structure including a surface layer made of a robust fabric from the surface side, an insulating layer made of foamed polyethylene with an aluminum vapor deposition film attached, an insulating reinforcing layer made of flame-retardant polyester nonwoven fabric, various components of the heat generating mechanism, and an inner layer made of stain-resistant and water-repellent polyester twill fabric, and the outer size of the main body is A size or less.

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