KR101919347B1 - Potable electric cooker - Google Patents

Abstract

To a portable electric cooker according to the present invention. The cooking container has an internal space and is formed so that its upper side is opened. The container lid is formed so as to cover the upper opening of the cooking container. The heating element is disposed on the outer bottom of the cooking vessel and receives power to discharge heat. The thermally conductive adhesive adheres the heating element to the outer bottom of the cooking container and transfers the heat emitted from the heating element to the cooking container. The heat insulating material is applied to the outer wall of the cooking vessel. The housing is formed so as to surround the outside of the cooking vessel except the upper opening of the cooking vessel with an air layer interposed therebetween. The housing envelope surrounds the outer wall of the housing to cushion the heat and cushion it.

Description

Potable electric cooker

The present invention relates to a cooking apparatus capable of cooking food with a battery without using wired electricity in the outdoors.

As the global energy problem has increased, interest in alternative energy has increased from fossil fuels, and related technologies are being developed steadily. In general, however, portable cooking utensils used in outdoor leisure activities still depend on fossil fuel type burners such as gas burners, oil burners, and alcohol burners.

By the way, fossil fuel type burner is a cookware with a high risk of fire by having flame. Because these burners can cause large wildfires in the open air, it is prohibited to carry them from the entrance to the mountain trails in Korea. Also, in the case of a gas burner, a user may cause a waste problem and an explosion hazard because the empty gas cylinder is disposed around.

The object of the present invention is to provide a portable electric cooker that is eco-friendly and can increase a cooking speed without a fire hazard.

According to an aspect of the present invention, there is provided a portable electric cooker including a cooking container, a container lid, a heating element, a thermally conductive adhesive, a heat insulating material, a housing, and a housing sheath. The cooking container has an internal space and is formed so that its upper side is opened. The container lid is formed so as to cover the upper opening of the cooking container. The heating element is disposed on the outer bottom of the cooking vessel and receives power to discharge heat. The thermally conductive adhesive adheres the heating element to the outer bottom of the cooking container and transfers the heat emitted from the heating element to the cooking container. The heat insulating material is applied to the outer wall of the cooking vessel. The housing is formed so as to surround the outside of the cooking vessel except the upper opening of the cooking vessel with an air layer interposed therebetween. The housing envelope surrounds the outer wall of the housing to cushion the heat and cushion it.

In the portable electric cooker according to the present invention, the heat blocking effect is increased by the heat insulating material and the air layer between the cooking container and the housing, and heat generated from the heating body in this state is rapidly transferred to the cooking vessel through the thermally conductive adhesive, The heating speed of the cooking vessel can be increased to about two times or more than that of the conventional method in which the heating plate is placed on the heating plate and heated. As a result, the cooking speed can be increased without any risk of fire because it is environmentally friendly.

1 is a perspective view of a portable electric cooker according to an embodiment of the present invention.
Fig. 2 is a sectional view of Fig. 1. Fig.
Fig. 3 is an exploded perspective view of Fig. 1. Fig.

The present invention will now be described in detail with reference to the accompanying drawings. Here, the same reference numerals are used for the same components, and a detailed description of known functions and configurations that may unnecessarily obscure the gist of the present invention will be omitted. Embodiments of the present invention are provided to more fully describe the present invention to those skilled in the art. Accordingly, the shapes and sizes of the elements in the drawings and the like can be exaggerated for clarity.

1 is a perspective view of a portable electric cooker according to an embodiment of the present invention. 2 is a sectional view of Fig. Fig. 3 is an exploded perspective view of Fig. 1. Fig.

1 to 3, a portable electric cooker 100 includes a cooking container 110, a container lid 120, a heating body 130, a thermally conductive adhesive 140, a heat insulating material 150, A housing 160, and a housing envelope 170.

The cooking vessel 110 has an inner space and is formed so that the upper side thereof is opened. The cooking container 110 allows the food to be cooked to be contained in the inner space through the upper opening. The cooking container 110 may be made of a metal material for convenience of use and washability. The cooking vessel 110 may be made of aluminum so as to have a high heat conduction effect. In this case, the inside and the outside of the cooking vessel 110 can be oxidized and ceramicized through an aluminum anodizing process. In addition, the thickness of the anodizing film may be maximized in the cooking vessel 110, so that the coating film 110 is prevented from being physically damaged during the washing of the cooking vessel 110.

The cooking vessel 110 can be mounted with the silicon ring 111 for the container around the upper opening. In a state in which the upper opening of the cooking container 110 is covered by the container lid 120, the container silicon ring 111 seals the cooking container 110 while being in contact with the silicone ring 122 for the lid .

The container lid 120 is formed to cover the upper opening of the cooking container 110. In the case where there is a food material such as water in the cooking container 110, the heat transferred to the cooking container 110 by the heating element 130 evaporates as water and the food material is changed into water vapor, Since the steam is heated steam, heat is transferred to the container lid 120, and the heat inside the cooking container 110 is contained in the gaseous substance and is substantially transferred to the container lid 120.

Blocking the heat leaking from the container lid 120 to the outside is an important factor in reducing energy consumption and increasing energy efficiency. Accordingly, the container lid 120 has a supporting structure that can hold the container lid 120 in a horizontal state when the container lid 120 is placed on the cooking container 110, and the material of the container lid 120 is a material having low thermal conductivity It can be made of a material having heat resistance.

As a typical material of the container lid 120, silicon is good, and silicon is environmentally friendly and harmless to the human body. The container lid 120 may be made of a silicone or a metal material that is harmless to the human body and a portion of the metal or heat-resistant plastic material may be combined with the silicone material.

For example, the container lid 120 is made of a metal harmless to the human body such as stainless steel or aluminum to form a basic skeleton. The lid sheath 121 is coated on the upper part of the container lid 120 with a silicone material, And can be adhered in a sheet form. The lid shell 121 made of silicon can enhance the effect of cutting off the heat radiated through the container lid 120.

In another example, the container lid 120 is made of a silicone material to block heat, and the lid sheath 121 may be made of a metal material harmless to the human body such as stainless steel or aluminum to form a basic structure. As another example, the container lid may be formed of a rigid material such as heat-resistant plastic or metal, and may be covered with a silicone material. The basic skeleton may be formed in a plate shape, or may be made of a mesh plate or a perforated plate to reduce the weight of the container lid. Alternatively, the container lid may be manufactured by forming a basic skeleton with silicon and attaching a support or structure of heat-resistant plastic or metal to the outside.

A silicone ring 122 for the lid can be mounted around the container lid 120. With the container lid 120 covering the upper opening of the cooking container 110, the silicone ring 122 for the lid can seal the cooking container in contact with the silicone ring 111 for the container. A lid grip 123 may be mounted on the upper center of the container lid 120. As another example, the container lid 120 may be made entirely of silicon material to enhance the heat shield effect.

The heating element 130 is disposed on the outer bottom of the cooking vessel 110. The heating element 130 receives power and emits heat. The heating element 130 may be formed in a thin plate shape and may be made of a planar heating element having excellent heat generating efficiency. The surface heating element may be made of a common component and structure.

The heating element 130 may include a power supply unit (not shown) to receive power through a rechargeable battery. The battery may be connected to the power supply unit while being embedded in the portable electric cooker 100, or may be connected to the power supply unit of the portable electric cooker 100. The temperature of the heating element 130 may be controlled through a power control unit (not shown). The heat emitted from the heating body 130 heats the cooking vessel 110 to allow the food in the cooking vessel 110 to be cooked.

The thermally conductive adhesive 140 adheres the heating element 130 to the outer bottom of the cooking vessel 110 and transfers the heat discharged from the heating element 130 to the cooking vessel 110. The thermally conductive adhesive 140 has thermal conductivity and attaches the heating element 130 to the outer bottom of the cooking vessel 110 so that the heating element 130 is quickly transferred to the cooking vessel 110 as soon as a heat source is generated. Therefore, the heat source generated from the heating element 130 minimizes the loss and can be transmitted to the cooking container 110 as much as possible.

The thermally conductive adhesive 140 may be made of an adhesive containing an alumina component. In this case, the thermally conductive adhesive 140 may be composed of an adhesive containing 20% or more of an alumina component having a thermal conductivity of 20 W / mK or more and enduring 200 ° C or more. The thermally conductive adhesive 140 prevents the heating element 130 from overheating, thereby enhancing the durability of the heating element 130.

The heat insulating material 150 is applied to the outer wall of the cooking vessel 110. The heat insulating material 150 minimizes the heat loss by preventing the heat that has been heated in the cooking container 110 from being diverted to the outside. The heat insulating material 150 may be made of a highly heat-insulating material such as airgel or vacuum ceramic. The heat insulating material 150 may be applied to surround the outer circumferential surface and the bottom surface of the cooking container 110. Here, the heat insulating material 150 may be applied to cover the exposed surface of the heat generating element 130. Of course, the heat insulating material 150 may be applied to the bottom surface of the cooking container 110 to expose the heating element 130.

The airgel is made of a silicon dioxide (SiO ₂ ) yarn of a thickness of about 1 / 10,000th of a hair, and air molecules penetrate into a myriad of nano-sized spaces, the weight of which is only three times the air, It is a solid insulation material of 900 square meters. Since the airgel has a thermal conductivity of 0.017 to 0.02 W / mK, the heat insulating effect of the cooking container 110 can be enhanced.

The vacuum ceramic is formed of a spherical sphere of ceramic granules in a vacuum state, so that almost no heat is transferred to a degree of thermal conductivity of 0.0012 W / mK, so that the insulating effect of the cooking vessel 110 can be enhanced.

The housing 160 is formed so as to surround the outside of the cooking vessel 110 except the upper opening of the cooking vessel 110 with the air layer S interposed therebetween so as to maximize the heat shield effect by the air layer S . The housing 160 is formed to have an inner space and open at the upper side. The inner space of the housing 160 is formed to be larger than the inner space of the cooking container 110. The inner space of the housing 160 has a size capable of forming the air layer S with the outer circumferential surface and the bottom surface of the cooking container 110 coated with the heat insulating material 150, respectively.

The housing 160 is provided with a support protrusion 161 for supporting the cooking container 110 in an upwardly spaced relationship with the inner bottom of the housing 160 so as to be positioned between the inner bottom surface of the housing 160 and the outer bottom surface of the heat insulating member 150 The air layer S can be maintained. The upper opening of the housing 160 and the upper opening of the cooking container 110 are fastened by the fastening ring 162 so that an air layer S is formed between the inner circumferential surface of the housing 160 and the outer circumferential surface of the heat insulating material 150. [ Can be maintained. A heat insulating sheet made of a material capable of enhancing a heat insulating effect may be inserted between the housing 160 and the cooking container 110 to improve the heat insulating effect in addition to the heat insulating material 150 and the air layer S .

The housing sheath 170 surrounds the outer wall of the housing 160 and heats and heats the heat. The housing shell 170 may be made of a material having thermal insulation and elasticity, such as silicon. The housing shell 170 has a sheet shape surrounding the outer circumferential surface and the outer bottom surface of the housing 160 and can be detachably attached to the housing 160 for washing.

In the portable electric cooker 100 described above, the heat shielding effect is enhanced by the heat insulating material 150 and the air layer S between the cooking container 110 and the housing 160. In this state, The heated heat is rapidly transferred to the cooking vessel 110 through the thermally conductive adhesive 140 so that the heating speed of the cooking vessel 110 can be increased to about two times or more than the conventional method in which the coupels are placed on the heating plate and heated.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation and that those skilled in the art will recognize that various modifications and equivalent arrangements may be made therein. It will be possible. Accordingly, the true scope of protection of the present invention should be determined only by the appended claims.

110 .. Cooking container
120 .. container lid
130 .. Heating element
140 .. Thermally conductive adhesive
150 .. Insulation
160 .. Housing
170 .. housing sheath

Claims (4)

A cooking vessel having an inner space and formed to open at an upper side thereof and having a silicone ring for a container around the upper opening;
A silicone ring for a lid is mounted along the periphery so as to abut the silicone ring for the container while covering the upper opening of the cooking lid and a lower portion in contact with the food is provided on the human body A container lid made of harmless silicon or metal material and the other part being made of a silicone material and a metal material combined;
A heating element disposed on an outer bottom of the cooking vessel, the heating element receiving power and emitting heat;
A thermally conductive adhesive which adheres the heating element to an outer bottom of the cooking vessel and transfers heat emitted from the heating element to the cooking vessel;
A heat insulating material coated on an outer wall of the cooking vessel with any one of an airgel formed by entanglement of a thread made of silicon dioxide and composed of air molecules in a nano-sized space and a vacuum ceramics composed of a sphere of vacuum ceramic granules;
A housing having an air layer interposed therebetween to surround the outside of the cooking utensil except the upper opening; And
A housing shell surrounding the outer wall of the housing to heat the housing and buffer the housing;
Wherein the electric cooker comprises:
The method according to claim 1,
Wherein the thermally conductive adhesive is made of an adhesive containing an alumina component.
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