JP4102297B2 - Cooking container - Google Patents

Description

  The present invention relates to a cooking container applied to a metal pan or kettle made of aluminum, copper, iron, stainless steel, or the like.

  In general, city gas or propane gas is usually used as a heating energy source for cooking using this type of pan, but emergency situations such as when the gas supply is cut off are considered. Thus, for example, if a device equipped with a heater is prepared, it can be used for alternative use. In that case, a container with a heater must be prepared separately, which is expensive.

  As a cooking container using a heater, a rice cooker is similar, but in a general direct heating type, the heater on the outer pot side is driven with the inner pot set on the outer pot. The use of the inner pot directly against gas is dangerous because it is not in the specification.

  Therefore, a metal pan that can be used safely with both gas and electricity as the heat source is desired. For example, a structure in which a heater is provided in a pan can be considered, but in a configuration in which a heater is simply provided, there is no guarantee that the heat conduction of the heater heat to the pan is effective, and when using gas, flame or combustion Unless there is a device that prevents gas from escaping from the outer surface of the bottom wall of the pan, what is practically satisfactory cannot be obtained.

  The present invention has been made in view of the above circumstances, and provides a cooking container that can use both gas and electricity as a heating energy source, and can safely and effectively exert a heating action. For the purpose.

  In order to solve the above-described problems, the present invention provides a metal container main body and a plurality of plate heaters arranged in parallel with each other in a vertical position with respect to the outer surface of the bottom wall of the container main body. And a thermally conductive covering member that covers at least both side surfaces of each plate heater in the thickness direction and transmits heat of the heater to the outer surface of the bottom wall of the container body. Solved by a container.

  According to the cooking container of this invention, by connecting the plate heater to a commercial AC power source or the like, the plate heater generates heat, and the heat heats the container body via the heat conductive coating member. Therefore, it can be used as an electric cooking container, and can also be used as a gas cooking container without using a plate heater. That is, by placing this container on a gas range or the like, the container body is directly heated by a flame during gas combustion, or the combustion gas is circulated through the space between the plate heaters so that the container body is heated. Heated through the conductive covering member.

  In particular, the heater has a vertical shape, and a plurality of plate heaters are arranged side by side with a space therebetween, so that the plate heater portion acts as a partition wall, and it is possible to suppress wasteful flame dissipation during combustion, Moreover, when using combustion gas, the said space can be utilized as a flow path of combustion gas, and heat energy can be conducted to a container main body without waste.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing a cooking container according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along line II-II in FIG. Here, stainless steel (SUS)
An example of application to a large sink-shaped pan made of metal will be described.

  In FIG. 1 and FIG. 2, the pan that is a cooking container includes a pan body 1, a plurality of plate heaters 2 disposed on the outer surface of the bottom wall 1 a of the pan body 1, and the heat of the plate heater 2. Is provided with a heat conductive covering member 3 that transmits the heat to the pan body 1 and a heater attachment reinforcing member 4.

  The pan body 1 is formed into a size having a planar shape of about 500 mm × 500 mm and a depth of about 130 to 138 mm using, for example, a SUS plate having a thickness of about 2 mm. Of course, the shape and dimensions can be arbitrarily changed.

  For example, six plate heaters 2 having a length of about 460 mm, a width of several mm, and a height of about 130 mm are used. This plate-like heater 2 is in a state in which there is a certain space S (for example, the space width D is less than about 100 mm) between adjacent ones on the bottom wall 1a of the pan body 1 and each of the pan body 1 Are installed in parallel in a vertical posture on the outer surface of the bottom wall 1a, and are connected to a commercial AC power supply for power supply.

  For example, as shown in FIG. 3, the plate-like heater 2 has a rectangular insulator 21 embedded with a heating wire 22 formed in a zigzag shape so as to generate heat uniformly. Has been. Of course, the plate-like heater 2 can be selected from various types as appropriate. Further, a terminal (not shown) for supplying power from the plate heater 2 is drawn out through the heat conductive covering member 3 and the heater attachment reinforcing member 4 at predetermined positions.

  The heat conductive covering member 3 is made of, for example, a copper plate or an aluminum plate having a thickness of about 1 to 2 mm. In the heat conductive covering member 3, a portion 3a corresponding to the plate heater 2 is configured as a heater covering holding portion having a substantially U-shaped cross section as shown in FIG. The respective plate-like heaters 2 are covered in close contact with each heater covering and holding portion 3a, and the other part 3b is on the outer surface of the bottom wall 1a of the pan body 1 with adjacent end portions of about 20 mm. It extends to a position approaching with a gap, and this extended portion is in close contact with the bottom wall 1 a of the pan body 1. The gap is provided so as not to hinder the welding of the heater attachment reinforcing member 4.

  Moreover, although the constituent material of this heat conductive coating | coated member 3 can be selected arbitrarily, it is preferable to use a copper plate and an aluminum plate as mentioned above from a point with high heat conductivity.

  The heater attachment reinforcing member 4 is made of a SUS plate having a thickness of about 1 to 2 mm, and serves to reinforce the heater and the heat conductive coating member 3 and to prevent corrosion of the heat conductive coating member 3. As shown in FIG. 4, the portion 4 a corresponding to the plate heater 2 in the plate heater attachment reinforcing member 4 has a substantially U-shaped cross section, and each U-shaped portion 4 a covers the heater covering. Each of the holding portions 3a is covered.

  The heater mounting reinforcing member 4 has a recessed shape in which a portion 4b corresponding to a substantially central position between the plate heaters 2 enters a gap between end portions of the heat conductive coating member 3 as a welding portion. The bottom wall 1a of the pan body 1 is fixed to the outer surface of the portion 4b by spot welding, for example. Thus, the thermally conductive covering member 3 is brought into close contact with the bottom wall 1a of the pan body 1 and the mounting state of the plate heater 2 is reinforced via the thermally conductive covering member 3. .

  In addition, since this heater attachment reinforcement member 4 uses the SUS board, it has high heat resistance, and can protect the said plate-like heater 2 at the time of abnormal combustion of gas. Of course, a metal plate other than the SUS plate may be arbitrarily selected and used.

  In order to assemble such a cooking pot, first, each plate heater 2 is accommodated in each heater covering holding portion 3a in the heat conductive covering member 3 on which the heater covering holding member 3a is formed. The heaters 2 are juxtaposed with each other. And this heat conductive coating | coated member 3 is arrange | positioned on the outer surface of the bottom wall 1a of the said pan main body 1, the said heater covering holding | maintenance part 3a is hold | maintained with the said U-shaped part 4a in the said heater attachment reinforcement member 4, What is necessary is just to carry out spot welding of the said welding part 4b with respect to the outer surface of the bottom wall 1a of the said pan main body 1. FIG.

  In addition, it fills the site | part between the heat conductive coating | coated member 3 and the bottom wall 1a of the pan main body 1, and between the heater 2 and the heat conductive coating | coated member 3 with a heat conductive favorable adhesive agent etc., and these It is good also as what makes mutual mutually closely adhere.

  Next, how to use the cooking pan will be described.

  First, when this cooking pan is used as an electric pan, if the cord drawn from the plate heater 2 is connected to a commercial AC power source, the heater 2 generates heat, and the heat directly and the heat conductivity. It is transmitted to the bottom wall 1a of the pan body 1 through the covering member 3, and the pan body 1 can be heated.

  At this time, since the other part 3b of the thermally conductive covering member 3 is in contact with the substantially entire region of the bottom wall 1a of the pan body 1 in the corresponding parts between the plate heaters 2, the pan body The substantially entire area of the bottom wall 1 a of 1 is effectively heated by the heat of the plate heater 2.

  Further, this cooking pan can be used as a gas pan without using the plate heater 2. In that case, if the pan body 1 is placed on, for example, a gas range and the gas is ignited, the entire area of the heater covering member 3 is heated by the flame at the time of gas combustion, and the heat is the thermal conductivity. It is transmitted to the bottom wall 1a of the pan body 1 through the covering member 3, and the pan body 1 can be heated.

  By the way, when a flame is applied to the bottom wall 1a of the pan body 1, if the plate heater 2 is not installed upright and the flame is strong, the flame diffuses around the pan body 1, Can be dangerous.

  In this regard, as described above, since the plurality of plate heaters 2 are installed upright, each plate heater 2 and the heater covering holding portion 3a function as a partition wall to the outside of the flame. Therefore, even when the momentum of the flame is strong, it is safe and the flame can be applied to the outer surface of the bottom wall 1a of the pan body 1 without waste.

  Moreover, since the space S exists between each of the plurality of plate heaters 2, each space S can be configured as a combustion gas flow passage. That is, the flame at the time of gas combustion is not directly applied to the outer surface of the bottom wall 1a of the pan body 1, but the opening of the space S is covered with the lid member 51 as shown in FIG. A plurality of B-shaped combustion gas flow passages can be formed, and the outer surface of the bottom wall 1a of the pan body 1 can be effectively heated by the combustion gas circulated therethrough.

  As mentioned above, although one Embodiment of this invention was described, this invention is not limited to the said embodiment.

  For example, the thermal resistance is reduced as much as possible by increasing the thickness of the portion of the thermally conductive coating member 3 that contacts the side surface of the heater 2 toward the upper side (the pan body side) as shown in FIG. Thus, the heat conduction performance may be increased.

  Further, when used as an electric cooking container, as shown in FIG. 7, a heat-resistant stopper member 7 is inserted into a gap between the heater 2 and the heater 2 in a press-fitted state. The generation of a gap between the heater 2 and the thermally conductive coating member 3 due to thermal expansion during heating may be prevented, and good thermal conductivity may be ensured by maintaining the close contact between the two.

  Moreover, as shown in FIG. 8, you may locally form the upper protrusion part 1b in the bottom wall 1a of the pan main body 1. As shown in FIG. At the time of cooking, the upward projecting portion 1b becomes a starting point for releasing heat into the pan body, and convection in the pan body is promoted to increase thermal efficiency.

  In addition, when used as an electric cooking container, a heat insulating material is filled outside the outermost heater or in a space between the heater 2 and the heater 2 so that heat is generated from the heater. It may be used to prevent escape.

  Further, spot welding is employed as the attachment of the heater attachment reinforcing member 4, but mechanical joining such as screwing or other joining may be used.

  Further, the heater attachment reinforcing member 4 is not necessarily required, and the heat conductive covering member sandwiching the heater from both sides in the thickness direction is directly welded to the bottom wall 1a of the pan body 1 or fixed by screwing or the like. You may do it.

It is an external appearance perspective view which shows the outline | summary of the sink shaped pan to which the container for heat cooking concerning one Embodiment of this invention was applied. It is sectional drawing along the II-II line of FIG. It is explanatory drawing of an example of a plate-shaped heater. It is an expanded sectional view of the principal part of FIG. It is explanatory drawing in the case of distribute | circulating combustion gas between plate-shaped heaters. It is principal part sectional drawing which shows other embodiment of this invention. It is principal part sectional drawing which shows other embodiment of this invention. It is principal part sectional drawing which shows other embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ..... Container body 1a ..... Bottom wall of container body 2 ...... Plate heater 3 ...... Thermally conductive covering member 3a .... Heater sheath holding part

Claims (1)

A metal container body;
A plurality of plate heaters arranged side by side in a vertically standing posture on the outer surface of the bottom wall of the container body;
A heat conductive covering member that covers at least both side surfaces of each plate heater in the thickness direction, and transfers heat of the heater to the outer surface of the bottom wall of the container body;
A container for cooking by heating.