CN201082124Y

CN201082124Y - Inner container of electric cooker

Info

Publication number: CN201082124Y
Application number: CNU2007200557932U
Authority: CN
Inventors: 余昌茂
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-08-15
Filing date: 2007-08-15
Publication date: 2008-07-09
Anticipated expiration: 2017-08-15

Abstract

The utility model discloses an inner bag for an electric rice cooker, comprising a stainless steel inner bag body, which is a cylinder with an opened upper end and an inward projected bottom. The technical proposal of the utility model has the key point that a heat conducting layer is arranged outside the inner bag body. The utility model aims to overcome the defect in the prior art to provide an electric rice cooker inner bag, which has the advantages of simple structure, good heat conducting effect, low processing effect, great plasticity, easily and accurately controlled inner bag bottom parameter during the machine shaping process, hard deformation in the using process, even heating and slight sticky.

Description

A kind of electric cooker inner container

[technical field]

The utility model relates to a kind of household electrical appliance, a kind of electric cooker parts of saying so more specifically.

[background technology]

The inner bag of electric cooker of the prior art, adopt in the inner bag bottom to join with high-frequency heating help pricker to close heat up welding or with friction press one deck aluminium flake is added one deck steel disc and be bonded together of material.The product of this type has following defective:

1, because of the bottom in the soldering cohesive process, need heat 500 ℃-700 ℃, this temperature forms irregular variation to stainless steel in metallographic structure, stress is not eliminated, have than big-difference than former sheet material of not heating at stress, aspect corrosion-resistant, durable use back bottom steel sector-meeting cracking, the irregular meeting of composition causes gets rusty, and forms to product and causes damage hidden danger.

2, will add flux, adhesive, blending water in surface stainless steel and aluminium flake adhesion process, these materials at high temperature produce a large amount of bubbles, and the part bubble fails in time to get rid of, and the bubble that forms in the seam process can become the obstacle that heat is transmitted, and the temperature difference occurs.

3, be aluminium flake because of egative film is middle, two intermediate plates are stainless steel substrates, when seam, form bimetal leaf, the coefficient of expansion of aluminium has than big-difference with the stainless coefficient of expansion, cause easily that when heating inner bag deformation of bottom and cambered surface are irregular, some adopt convex tendon also to cause the thermal contact conductance face to reduce, and cause heat conduction bad.

4, egative film is a stainless steel substrates, and stainless heat conductivility is more relatively poor than aluminium, and the limited direct contact heating dish of intermediate course aluminium flake area is stainless steel in addition, and heat transfer path is: heat-generating disc → stainless steel egative film → middle aluminium lamination → stainless steel internal layer → food.This process stainless steel has increased obstacle to heat transfer, and it is bad switching to have occurred, causes the environment temperature superelevation to cause the irregular misoperation of the irregular generation of electric property, and electrical function can not get embodying.

5, existing compound end shape stainless steel inner container is difficult to the R parameter of interior concave bottom cambered surface is accurately controlled in process of production, and it is too small to form inner bag cambered surface and heat-generating disc contact area, and temperature is irregular, cause cooking Jiao end, a half a lifetime half ripe phenomenon.

[utility model content]

The utility model purpose is to have overcome above-mentioned deficiency of the prior art, provide a kind of simple in structure, heat-transfer effect is good, processing cost is low, plasticity is strong, and cambered surface parameter accurately control easily in inner bag bottom is not yielding in the use in the machine-shaping process, be heated evenly little sticking electric cooker inner container.

The utility model is achieved through the following technical solutions:

A kind of electric cooker inner container comprises the stainless steel inner container body, and the inner bag body is the cylindrical of upper end open, bottom convex, it is characterized in that: be outside equipped with heat-conducting layer at the inner bag body.

Aforesaid a kind of electric cooker inner container is characterized in that described inner bag body bottom is provided with many ring-type punching press convex tendons concentric with the inner bag body.

Aforesaid a kind of electric cooker inner container is characterized in that the thickness of described heat-conducting layer is even, is coated on the outside of inner bag body.

Aforesaid a kind of electric cooker inner container is characterized in that the thickness of described heat-conducting layer is even, is coated on the exterior bottom of inner bag body.

Aforesaid a kind of electric cooker inner container is characterized in that described heat-conducting layer is a heat conducting coating.

Aforesaid a kind of electric cooker inner container is characterized in that described heat-conducting layer is the copper layer.

Aforesaid a kind of electric cooker inner container is characterized in that described heat-conducting layer is an aluminium lamination.

Aforesaid a kind of electric cooker inner container is characterized in that described heat-conducting layer is the alloy-layer of copper and aluminium.

Aforesaid a kind of electric cooker inner container is characterized in that the bottom of described inner bag body is provided with interior protuberance.

Compared with prior art, the utility model has following advantage:

1, the utility model inner bag body adopts the individual layer stainless steel, and is simple in structure, need not to weld the compound end; Interior surface stainless steel light, cleaning, direct contacting foodstuff, environmentally-friendly sanitary.

2, the utility model is outside equipped with uniform heat-conducting layer at the inner bag body, and heat-transfer effect is good, and the electrical equipment control sensitivity is good, and heat-conducting layer can cover the whole inner bag body outside, makes the inner bag body be heated evenly, and realizing cooks does not stick with paste at the end.

3, the utility model is being provided with annular punching press convex tendon on the convex globoidal on the inner bag body bottom, increases bottom surface intensity, control cambered surface R parameter easily in the forming process is not yielding in the use, has guaranteed contacting of inner bag bottom and heat-generating disc.

4, heat-conducting layer has heat conductivility preferably, better high temperature resistant, rub resistance.

[description of drawings]

Fig. 1 is the utility model stereogram;

Fig. 2 is a front view of the present utility model;

Fig. 3 is embodiment 1 cutaway view of the present utility model;

Fig. 4 is a vertical view of the present utility model;

Fig. 5 is embodiment 2 cutaway views of the present utility model.

[specific embodiment]

Embodiment 1: as Fig. 1, Fig. 2, a kind of electric cooker inner container of Fig. 3, Fig. 4, comprise inner bag body 1, inner bag body 1 is the cylindrical of upper end open, bottom convex, is outside equipped with the heat-conducting layer 2 that is attached on the inner bag body 1 at inner bag body 1, and described inner bag body 1 is made by stainless steel.Described inner bag body 1 bottom be provided with many with the concentric ring-type punching press of inner bag body 1 to inner convex rib 101.The thickness of described heat-conducting layer 2 is even, and heat-conducting layer 2 coats the outside of whole inner bag body 1.Described heat-conducting layer 2 is a heat conducting coating, also can be the alloy of copper, aluminium or copper and aluminium.The bottom of described inner bag body 1 is provided with interior protuberance 102, has formed three-dimensional preferably and double-deck effect in appearance.

Use the heat transfer path of electric cooker inner container of the present utility model to be: heat-generating disc → heat-conducting layer → stainless steel inner container → food.Conduct heat directly, the electrical equipment control sensitivity is good, and heat-conducting layer can cover the whole inner bag body outside, makes the inner bag body be heated evenly.This process stainless steel conducts heat to Stewed Dish, and environment temperature can be abideed by the function control of electric property evenly.

The utility model uses the individual layer stainless steel inner container, can directly be stamped to form with corrosion resistant plate, processing cost is low, be provided with annular punching press convex tendon on the convex globoidal on the inner bag body bottom, increase bottom surface intensity, easy control cambered surface R parameter in the forming process, not yielding in the use, improved contacting of inner bag bottom and heat-generating disc.

Embodiment 2: the difference as Fig. 1, Fig. 2, Fig. 4, Fig. 5 and embodiment 1 is that the thickness of described heat-conducting layer 2 is even, only is coated on the exterior bottom of inner bag body 1, stable performance simultaneously.

Claims

1. an electric cooker inner container comprises stainless steel inner container body (1), and inner bag body (1) is the cylindrical of upper end open, bottom convex, it is characterized in that: be outside equipped with heat-conducting layer (2) at inner bag body (1).

2. a kind of electric cooker inner container according to claim 1 is characterized in that described inner bag body (1) bottom is provided with many ring-type punching press convex tendons (101) concentric with inner bag body (1).

3. a kind of electric cooker inner container according to claim 1 is characterized in that the thickness of described heat-conducting layer (2) is even, is coated on the outside of inner bag body (1).

4. a kind of electric cooker inner container according to claim 1 is characterized in that the thickness of described heat-conducting layer (2) is even, is coated on the exterior bottom of inner bag body (1).

5. a kind of electric cooker inner container according to claim 1 is characterized in that described heat-conducting layer (2) is a heat conducting coating.

6. a kind of electric cooker inner container according to claim 1 is characterized in that described heat-conducting layer (2) is the copper layer.

7. a kind of electric cooker inner container according to claim 1 is characterized in that described heat-conducting layer (2) is an aluminium lamination.

8. a kind of electric cooker inner container according to claim 1 is characterized in that the alloy-layer of described heat-conducting layer (2) for copper and aluminium.

9. a kind of electric cooker inner container according to claim 1 is characterized in that the bottom of described inner bag body (1) is provided with interior protuberance (102).