CN213429670U

CN213429670U - Cooking container and electric heating cooking utensil

Info

Publication number: CN213429670U
Application number: CN202021188770.0U
Authority: CN
Inventors: 易立军; 贾庆富
Original assignee: Anhui Yongyao Electric Appliance Co ltd
Current assignee: Anhui Yongyao Electric Appliance Co ltd
Priority date: 2020-05-31
Filing date: 2020-06-24
Publication date: 2021-06-15
Anticipated expiration: 2030-06-24
Also published as: CN111870110B; CN111870110A; CN213216563U

Abstract

The utility model relates to the technical field of household appliances, in particular to a cooking container and an electric heating cooking utensil, wherein the cooking container comprises a body, a heat transfer vessel formed in a blowing-up manner is arranged inside the body, and the heat can be quickly conducted on the body; and a certain amount of thermal superconducting medium is contained in the heat transfer vessel. This application has quick heat conduction, realizes container integral heating, improves the beneficial effect of culinary art quality.

Description

Cooking container and electric heating cooking utensil

Technical Field

The utility model relates to a domestic utensil technical field of family especially relates to a cooking container and electrical heating cooking utensil.

Background

Most of cooking containers in the prior art are of single-layer wall structures, are generally made of aluminum, iron or stainless steel materials, and are formed by deep drawing. However, the heat transfer performance of aluminum, iron and stainless steel is poor, and most of heat sources are concentrated at the bottom of the pot, so that the heat at the upper part in the pot can only be gradually transferred through the pot wall, and rice in the pot, especially rice at the middle-upper part, cannot absorb enough heat, so that the problems of long soaking time, excessive water absorption, easy breakage of rice and the like occur in the cooking process.

Therefore, the industry of household cooking appliances needs a cooking container capable of rapidly conducting heat to solve the technical problem of uneven heating, and the industry tends to design cookware with a multi-layer wall structure gradually, while conventional cookware with multi-layer wall is usually made of iron or its alloy (such as stainless steel) as an outer layer for protection and corrosion prevention, and an inner layer uses copper with higher heat conduction efficiency than aluminum, iron and tin to increase the heat conduction efficiency of the cookware, but the iron and copper metal layers will increase the weight of the cookware, which causes the use burden of consumers, especially the elderly consumers.

Therefore, the utility model provides a cooking container with heat superconducting effect, it is by a plurality of metal levels complex each other as an organic whole to utilize the characteristic of heat superconducting medium to conduct the heat to whole body fast, show the heat conduction efficiency who promotes this cooking container, and alleviateed this container weight, reduced the burden of user when using.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the prior art is not enough to be overcome, and a cooking container and an electric heating cooking utensil are provided. It has the advantages of fast heat conduction and uniform heating.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a cooking container, which comprises a body, wherein a heat transfer vessel formed in a blowing way is arranged inside the body, so that heat can be quickly conducted on the body; and a certain amount of thermal superconducting medium is contained in the heat transfer vessel.

The technical scheme can be further improved:

further, an injection channel for injecting the heat superconducting medium is arranged at the opening edge of the body.

Furthermore, the opening edge of the body is bent outwards to form a pot edge, and the injection channel is formed at the lower wall of the pot edge and is provided with an extension part extending out of the pot edge.

Furthermore, the extension part is closed by welding after being cut off, and an upper pot handle is arranged on the pot edge corresponding to the position of the injection channel to shield the injection channel.

Further, the heat transfer vessel is configured to a vacuum state prior to injecting the hot superconducting medium.

Further, the body comprises a first metal layer and a second metal layer, and two side pipe walls of the heat transfer vascular pipe are respectively formed on the first metal layer and the second metal layer.

Further, the first metal layer and the second metal layer are compounded into an inseparable composite structure.

Further, a temperature-resistant isolation layer is preset on a forming path of the first metal layer and/or the second metal layer for forming the heat transfer vessel before the first metal layer and the second metal layer are compounded.

Further, the forming path is caused to expand into a heat transfer vessel upon injection of a blowing medium therein.

Further, the first metal layer is disposed inside the second metal layer, and the first metal layer has a thickness greater than that of the second metal layer such that the heat transfer vessel is protruded only on the second metal layer.

Further, the heat transfer vessels are enveloped at the side wall and/or the bottom wall of the body.

The utility model also provides an electrical heating cooking utensil can realize the three-dimensional heating to the culinary art thing, hold the chamber including the culinary art, this culinary art is held the intracavity and is placed above-mentioned culinary art container.

Owing to adopted above technical scheme, the utility model discloses following beneficial effect has:

the utility model discloses a culinary art container is owing to set up heat transfer vessel, and the intraductal heat superconducting medium that has held of heat transfer vessel for can conduct rapidly to whole body at the heat of the zone of heating input, show the heat conduction efficiency who promotes this container, carry out surrounding type three-dimensional heating to the culinary art material, and then improve the culinary art quality of food. Furthermore, because the utility model discloses a soaking effect of whole container can be realized rapidly to the culinary art container, consequently, after the culinary art finishes, perhaps places high temperature food in this container, can realize the cooling of dispelling the heat fast, is showing the heat dissipation refrigeration efficiency who has improved the container. That is, the utility model discloses a cooking container has quick heat conduction when the heating, makes food thermally equivalent in order to improve the beneficial effect of culinary art quality, has the quick radiating beneficial effect when refrigerating.

Drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the drawings of the embodiments will be briefly described below, and it is obvious that the drawings in the following description only relate to some embodiments of the present invention, and are not intended to limit the present invention.

1. Fig. 1 is an overall view of a cooking container according to the first embodiment.

2. Fig. 2 is an enlarged view at a in fig. 1.

3. Fig. 3 is an overall view of the cooking container of the second embodiment.

4. Fig. 4 is an enlarged view at B in fig. 3.

5. FIG. 5 is a process flow chart of a method of making the fourth embodiment.

Reference numerals:

1. a first metal layer; 2. a second metal layer; 3. a heat transfer vessel; 4. and a blowing inlet.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a," "an," or "the" and similar referents do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalents, and does not exclude other elements or items. "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are used only to indicate relative positional relationships that may change when the absolute position of an object being described changes, and are merely for convenience in describing the invention and to simplify the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Features in the embodiments described below may be combined with each other without conflict.

The first embodiment is as follows:

drawing is a process method for processing metal containers, which is commonly used in the prior art, and applies external force to a plate by a die to cause a stress state to appear in the plate, so that the plate is promoted to flow in an ideal direction. In the process of stretching and forming, a blank holder needs to be installed to generate friction resistance so as to increase the tensile stress in the plate, control the flow of the material and avoid wrinkling. The size of the edge pressing force is an important process parameter and control means in the sheet material stretch forming.

The hot-press compounding is a technological process of stacking a plurality of metal plate blanks together, heating to a certain temperature, and pressurizing to prepare a metal composite plate with certain mechanical strength. During the pressing process, the contact surfaces between the metal slabs gradually fuse to form an inseparable integral structure.

The utility model provides a cooking container, which comprises a body, wherein a heat transfer vessel 3 formed in a blowing way is arranged inside the body, so that heat can be quickly conducted on the body; a certain amount of a thermal superconducting medium is contained in the heat transfer vessel 3. In practice, the heat transfer vessel 3 is not filled with the heat superconducting medium, but only partially filled with the superconducting medium, and the actual amount of the heat superconducting medium is determined according to actual needs, and is usually about 30%.

An injection channel for injecting the thermal superconducting medium is arranged at the opening edge of the body. The opening edge of the body is bent outwards to form a pot edge, and the injection channel is formed at the lower wall of the pot edge and is provided with an extension part extending out of the pot edge. The extension part is closed by welding after being cut off, and a pot handle is arranged on the pot edge corresponding to the position of the injection channel to shield the injection channel. The heat transfer vessel 3 is configured in a vacuum state before the injection of the hot superconducting medium. The body comprises a first metal layer 1 and a first metal layer 2, and the tube walls on two sides of the heat transfer vessel 3 are respectively formed on the first metal layer 1 and the first metal layer 2. The first metal layer 1 and the first metal layer 2 are compounded into an inseparable composite structure. The first metal layer 1 and the first metal layer 2 are provided with a temperature-resistant isolation layer in advance before the first metal layer 1 and the first metal layer 2 are compounded on a forming path for forming the heat transfer vessel 3, and the temperature-resistant isolation layer is printed on the first metal layer 1 and the second metal layer 2 in a printing mode. The formation path is internally caused to expand into heat transfer vessel 3 after being injected with a blowing medium. The first metal layer 1 is arranged on the inside of the second metal and the thickness of the first metal layer 1 is larger than the first metal layer 2 so that the heat transfer vessel 3 is only highlighted on the first metal layer 2. The heat transfer tube 3 is enveloped on the side wall and/or the bottom wall of the body, in particular, the heat transfer tube 3 is enveloped on the side wall and the bottom wall of the body in the present embodiment, and in other embodiments, can be enveloped on only the side wall or the bottom wall.

A cooking vessel shown in fig. 1 and 2, which is a cylindrical vessel formed by drawing, comprises a body having at least a first metal layer 1 and a second metal layer 2, the second metal layer 2 being disposed outside the first metal layer 1, and the first metal layer 1 and the second metal layer 2 being configured as an inseparable composite structure; and a heat transfer vessel 3 is formed between the first metal layer 1 and the second metal layer 2 to enable heat to be rapidly conducted on the body, and the heat transfer vessel 3 contains a thermal superconducting medium which can rapidly conduct heat. The forming path is preset with a temperature-resistant isolating layer used for keeping the forming path not to be compounded by hot pressing, and the temperature-resistant isolating layer is not generated in the hot pressing compounding process. The temperature-resistant isolation layer is pre-arranged on at least one of the first metal layer 2 and the second metal layer 3, so that the forming path with the temperature-resistant isolation layer is not compounded. The container wall is provided with a blowing inlet 4, the forming path is communicated with the blowing inlet 4, and a blowing medium injected from the blowing inlet 4 flows along the forming path to blow and form the heat transfer vessel 3.

Specifically, the first metal layer 1 and the second metal layer 2 are both aluminum metal layers, and metal aluminum has the advantages of low melting point, easy compounding, low density and light weight. In this embodiment, the cooking container is an aluminum container which is formed by laminating two aluminum sheets and further deep-drawn. The first metal layer 1 constitutes the inner wall of the cooking vessel and the second metal layer 2 constitutes the outer wall of the cooking vessel. In other embodiments, the cooking container may also be of more than two layers, for example, a stainless steel layer is laminated on the inner side of the first metal layer 1, but since the heat transfer vessel 3 is formed by blowing after deep drawing, it is better not to laminate other metal layers, especially stainless steel layers, on the outer sides of the first metal layer 1 and the second metal layer 2, otherwise the difficulty of forming the heat transfer vessel 3 by blowing is greatly increased.

The heat transfer vessel 3 is formed by blowing the existing first metal layer 1 and second metal layer 2, that is, on the basis of the existing structure thereof, that is, by presetting a forming path, and then injecting a blowing medium (high-pressure liquid or high-pressure gas) into the forming path, and the forming path is expanded into a tube by the pressure generated by the blowing medium, thereby forming the heat transfer vessel 3. Thus, the heat transfer tube 3 is formed without the additional introduction of new component parts, such as the conventional way of embedding a pipe between two metal layers. The heat transfer vessel 3 is arranged on the wall of the cooking vessel in a wrapped manner, said heat transfer vessel 3 being formed by inflation by injecting an inflation medium along a predetermined forming path. A temperature-resistant isolation layer is preset on a forming path of the first metal layer 1 and the second metal layer 2 for forming the heat transfer vessel 3, and in the process of hot-pressing and compounding the first metal layer 1 and the second metal layer 2, the temperature-resistant isolation layer can keep the forming path from being hot-pressed and compounded. In this embodiment, the temperature-resistant isolation layer is a graphite layer formed on the composite surface of the first metal layer 1 and the second metal layer 2 by printing, and in the process of combining the first metal layer 1 and the second metal layer 2, after the graphite layer is heated to the melting temperature of the first metal layer 1 and the second metal layer 2, the first metal layer 1 and the second metal layer 2 begin to have a certain plasticity, and after a certain pressure is applied, the first metal layer 1 and the second metal layer 2 are bonded together to form an inseparable composite structure. Because the melting temperature of graphite is far higher than that of metal aluminum, in the hot-pressing compounding process of the first metal layer 1 and the second metal layer 2, the formed paths are not compounded due to the temperature-resistant isolation layer, and a channel for allowing high-pressure gas or high-pressure liquid to enter and blow to form the heat transfer pulse tube 3 is formed.

It should be noted that, the function of the temperature-resistant isolation layer is to keep the region with the temperature-resistant isolation layer from being composited together when the first metal layer 1 and the second metal are hot-pressed and composited. Therefore, it may be other paint than graphite as long as it can function to isolate the first metal layer 1 and the second metal layer 2 and prevent the formation paths from being combined into one. The temperature-resistant isolation layer adopts a temperature-resistant coating in the prior art, and the temperature-resistant coating can continuously keep the non-stick performance when the temperature reaches the melting temperature of the first metal layer 1 and the second metal.

The temperature-resistant isolation layer is preset on the first metal layer 1 and the second metal layer 2 before the first metal layer 1 and the second metal layer 2 are hot-pressed and compounded or on one of the first metal layer and the second metal layer, and after the first metal layer 1 and the second metal layer 2 are hot-pressed and compounded, the first metal layer 1 and the second metal layer 2 are mutually isolated in a region with the temperature-resistant isolation layer and are not compounded. The melting temperature of the temperature-resistant isolation layer is higher than that of the first metal layer and the second metal layer 2. The temperature-resistant isolation layer can be preset on only the first metal layer 1, only the second metal layer 2, or both the first metal layer 1 and the second metal layer 2, as long as it can ensure that the forming path of the heat transfer vessel 3 is not bonded together. Specifically, in this embodiment, a temperature-resistant isolation layer is preset on both the first metal layer 1 and the second metal layer 2.

The formation path is in communication with a blowing inlet 4 provided on the vessel wall, along which a blowing medium injected by the blowing inlet 4 flows to blow the heat transfer vessel 3 between the first metal layer 1 and the second metal layer 2, i.e. to blow the area with the temperature resistant insulation into a hollow tube structure. The blowing medium can be high-pressure gas or high-pressure liquid, in the embodiment, high-pressure nitrogen is used for blowing, the high-pressure nitrogen is injected between the first metal layer 1 and the second metal layer 2 through the blowing inlet 4, the high-pressure nitrogen moves along the forming path, and as the pressure of the high-pressure nitrogen is greater than the acting force which enables the second metal layer 2 to generate plastic deformation, the high-pressure nitrogen can enable the region which is not subjected to hot-pressing compounding on the forming path to expand, so that the heat transfer vessel 3 is formed. The blow-up inlet 4 is provided at the rim of the cooking vessel to avoid affecting the deep drawing of the vessel. In other embodiments, the inflation may also be performed using a high pressure liquid, such as hydraulic oil or the like.

The heat transfer tube 3 is formed by blow-molding after the cooking container is drawn and formed. The heat-resistant isolation layer is arranged on the cut metal aluminum sheet in advance (namely, is preset), then heating and compounding are carried out, drawing and forming are carried out after compounding to form a cylindrical container, then the blowing process of the heat transfer vessel 3 is carried out, and the heat transfer vessel 3 after blowing is injected with superconducting medium after further vacuum extraction.

Specifically, the heat superconducting medium is a refrigerant such as freon or the like, and may be another heat superconducting liquid. Such as superconducting fluids used in radiators. The principle of the rapid heat conduction of the heat transfer pulse tube 3 is similar to that of a thermosiphon, a heat pipe and the like. The heat superconducting medium is injected into the heat transfer vessel 3 after being formed into a vacuum. That is, the heat transfer tube 3 is evacuated before the superconducting liquid is injected, otherwise, it is difficult to say that the superconducting liquid is injected into the heat transfer tube 3 due to the gas in the heat transfer tube 3, and the injection principle is similar to that of adding a refrigerant in an air conditioner.

It should be noted that the heat transfer tube 3 is wrapped in a grid-like manner on the side walls and the bottom wall of the cooking vessel. The heat transfer vessels 3 on the side wall and the heat transfer vessels 3 on the bottom wall are communicated, i.e. the hot superconducting medium injected from the blowing inlet 4 at the rim can flow into all the heat transfer vessels 3 on the side wall and the bottom wall without leaving dead space.

As a result of repeated verification of the test, the inventors found that the cross-sectional area of the heat transfer tube 3 was set to less than 8.0mm²Is more beneficial to blow molding and can effectively prevent the liquid leakage caused by tearing of the peripheral part of the heat transfer vessel 3 during blowing. In particular, the cross-sectional area of the heat transfer tube 3 in this embodiment is about 3.2mm². Too small a cross-sectional area of the heat transfer tube 3 is detrimental to heat transfer, and too large a cross-sectional area may result in tearing of the perimeter of the heat transfer tube 3 during inflation.

The heat transfer vessels 3 may be embossed only on the first metal layer 1, only on the second metal layer 2 or both on the first metal layer 1 and the second metal layer 2. Highlighting refers to highlighting, i.e. the presence of heat transfer vessels 3 can be visually observed. Specifically, in the present embodiment, the second metal layer 2 is easier to be blown and deformed than the first metal layer 1, that is, the thickness of the second metal layer 2 is smaller than that of the first metal layer 1, and the second metal layer 2 is deformed prior to the first metal layer 1 when the blowing medium is injected so that the heat transfer vessels 3 are protruded on the second metal layer 2. I.e. the presence of the heat transfer vessels 3 is hardly visible on the inside of the cooking vessel, but the heat transfer vessels 3 are clearly visible on the outside of the cooking vessel.

Example two

The implementation of this embodiment is substantially the same as the first embodiment, except that the vein shape of the heat transfer vessel 3 on the cooking vessel is different as shown in fig. 3 and 4. In particular, the heat transfer vessel 3 in this embodiment is helically wrapped around the wall of the cooking vessel.

In this embodiment, the heat transfer tube 3 is helically wrapped from the bottom up on the side wall of the container. In other embodiments, heat transfer vessel 3 may also be wrapped around the side walls of the container in other shapes, such as a ring shape that is stacked and in communication with each other.

EXAMPLE III

The embodiment provides an electrical heating cooking utensil, can realize the three-dimensional heating to the culinary art thing, its inside culinary art holds the chamber that is formed with, above-mentioned cooking container has been placed in the culinary art appearance intracavity. The cooking container is provided with a mouth edge part which is turned outwards, and the mouth edge part is provided with a closed inflation inlet 4 and an anti-scald handle which shields the inflation inlet 4.

Specifically, the electric heating cooking appliance may be an electric rice cooker, an electric pressure cooker, an electric stewpan, an induction cooker, or the like, as long as it can cook food by heating. Since the basic structure of this type of electric heating cooking appliance is common in the prior art, this embodiment is not shown by way of illustration.

In order to adapt to the electric heating cooking utensil, the utility model discloses the mouth along department at the culinary art container has set up and has prevented scalding the handle. The burn-proof handle can shield the welding closed inflation inlet 4. The specific design of the anti-scalding handle refers to the prior art, and a space capable of shielding the inflation inlet 4 is reserved.

Example four

As shown in fig. 5, in the present embodiment, there is provided a manufacturing method for manufacturing the cooking container, including the following steps:

s01, cutting to obtain a first metal layer and a second metal layer;

and S02, presetting temperature-resistant isolation layers on the first metal layer and the second metal layer along a forming path for forming the heat transfer vessel, and setting the side surfaces of the preset temperature-resistant isolation layers as composite surfaces for compounding the first metal layer and the second metal layer.

And S03, stacking the first metal layer and the second metal layer, and hot-pressing and compounding the first metal layer and the second metal layer into an inseparable composite structure.

Claims

1. A cooking container comprising a body characterized in that:

the inside of the body is provided with a heat transfer vessel formed in an inflation mode, and the heat transfer vessel enables heat to be rapidly conducted on the body;

and a certain amount of thermal superconducting medium is contained in the heat transfer vessel.

2. The cooking container of claim 1, wherein: an injection channel for injecting the thermal superconducting medium is arranged at the opening edge of the body.

3. The cooking container of claim 2, wherein: the opening edge of the body is bent outwards to form a pot edge, and the injection channel is formed at the lower wall of the pot edge and is provided with an extension part extending out of the pot edge.

4. The cooking container of claim 3, wherein: the extension part is closed by welding after being cut off, and a pot handle is arranged on the pot edge corresponding to the position of the injection channel to shield the injection channel.

5. Cooking container according to claim 2 or 3 or 4, characterized in that: the heat transfer vessel is configured to a vacuum state prior to injection of the hot superconducting medium.

6. The cooking container of claim 1, wherein: the body comprises a first metal layer and a second metal layer, and the pipe walls on two sides of the heat transfer vascular pipe are respectively formed on the first metal layer and the second metal layer.

7. The cooking container of claim 6, wherein: the first and second metal layers are compounded into an inseparable composite structure.

8. The cooking container of claim 7, wherein: the first metal layer and/or the second metal layer are/is used for forming a forming path of the heat transfer vessel, and a temperature-resistant isolation layer is arranged in advance before the first metal layer and the second metal layer are compounded.

9. The cooking container of claim 8, wherein: the forming path is internally caused to expand into a heat transfer vessel upon injection of a blowing medium.

10. Cooking container according to any one of claims 6-9, characterized in that: the first metal layer is disposed on the inside of the second metal layer and has a thickness greater than that of the second metal layer such that the heat transfer vessel is embossed only on the second metal layer.

11. Cooking container according to any one of claims 6-9, characterized in that: the heat transfer vessels are enveloped at the side wall and/or the bottom wall of the body.

12. An electric heating cooking appliance capable of three-dimensional heating of a cooking object, comprising a cooking cavity, characterized in that a cooking container according to any one of claims 1 to 11 is placed inside the cooking cavity.