JPS5845613Y2 - cooking pot - Google Patents

Description

[Detailed description of the invention] This invention provides a device for obtaining high thermal conductivity in the pot, a so-called heat pipe function, which heats the bottom and effectively conducts heat upward to the sides, thereby uniformly heating the contents. This is about a cooking pot that measures .

As shown in the figure, the conventional pot body 1 of this type has a double wall structure consisting of an inner wall 2 and an outer wall 4 having a plurality of protrusions 3.
Attach the two using appropriate means such as gluing or seam welding,
A gap 5 is formed between the protrusion 3 and the inner wall 2, the inside of which is evacuated, and an appropriate amount of a working liquid 6 such as water or acetone is applied from the end 7' extending to the upper end 7 of the side of the pot. It is sealed and used as a heat pipe.

When one end (heating part) of this heat pipe is heated, the working liquid 6 in the gap 5 evaporates and flows toward the other end of the side of the pot, which is the cooling part, where the evaporation condenses and reaches the bottom of the pot. falls into the heating section of the

In this way, the operating liquid 6 forms the above-mentioned two-phase flow and releases the latent heat of phase change obtained in the heating section in the cooling section, thereby transmitting a large amount of heat.

However, manufacturing such a pot is difficult, and in particular, sealing the working fluid 6 inside the cavity 5 is a laborious task.

i.e. the end 7 of the cavity 5 extending to the side upper end 7 of the pot.
When sealing the inner wall 2 by welding or the like, the resin at the upper end 8 of the resin 9 processed on the inner wall 2 becomes an obstacle, so it is necessary to remove the resin at this area.

In addition, it is necessary to reprocess the area where the resin 9 has been removed, which is troublesome.

The present invention has been made in view of the above, and provides a cooking pot in which the inner surface of the inner wall except the upper end is treated with resin, thereby facilitating the work of clearing the voids.

An embodiment of the present invention will be described below with reference to the drawings.

Reference numeral 8 denotes the upper end of the inner wall 2, on the outside of which the end 7' of the gap 5 is located.

To explain one conventional example of the process related to resin processing, first, the shape required for a cooking pot is punched out of the material, resin processing is applied to the surface corresponding to the inner surface of the inner wall, and the shape of the container is made with that surface inside. The space 5 inside the protrusion 3 of the rear outer wall 4 is sealed by pressing, and in the resin processing process, the part corresponding to the upper end 8 of the inner wall 2 is covered with a mask or the like. Apply resin processing from above.

As a result, the upper end 8 of the inner wall 2 is free of resin.

According to this process, when the end 7' of the gap 5 is sealed by welding or brazing, the resin in and around it has already been removed, so there is no need to remove the resin.
Sealing operations such as welding and brazing can be performed in the same state, making it easier to manufacture cooking pots than in the past.

Note that the area excluding the resin at the upper end 8 is the end 7' of the lowest gap 5.
However, the entire periphery along the upper end 8 of the inner wall 2 is excluded due to the difficulty of covering it with a mask or the like, or from the viewpoint of appearance.

As described above, according to the present invention, the inner surface of the inner wall other than the upper end portion is treated with resin, so that the end portion of the gap can be easily sealed, and the manufacturing thereof can be facilitated.

In addition, the inner surface of the inner wall can be made of a resin-treated surface that is easy to handle, as in the conventional case, which has the advantage of improving quality.

[Brief explanation of the drawing]

The figure is a partially vertical side view of a cooking pot showing an embodiment of the present invention. 2...Inner wall, 8...Top end, 9...
···resin.

Claims (1)

[Scope of utility model registration request] The inner wall and the outer wall form a double wall structure, and between the double walls there is formed a plurality of voids, one end of which is located at the bottom and the other end of which extends upward from the side. A cooking pot in which a working liquid is sealed from the upper end and the inner surface of the inner wall is resin-treated, characterized in that the inner surface of the inner wall 2 is resin-treated 9 except for the upper end 8. pot.