CN201082124Y - Inner container of electric cooker - Google Patents

Abstract

The utility model discloses an inner container of electric cooker, including the stainless steel inner container body, the inner container body is convex cylindrical in upper end opening, the bottom, and its technical scheme's main points are, are provided with the heat-conducting layer outside the inner container body. The utility model aims at overcoming the above-mentioned not enough among the prior art, provide a simple structure, heat transfer effect is good, and the processing cost is low, and plasticity is strong, the easy accurate control of liner bottom cambered surface parameter among the machine-shaping process, non-deformable in the use is heated evenly, slightly glues the electric rice cooker inner bag.

Description

A kind of electric cooker liner

【Technical field】

The utility model relates to a household appliance, in particular to a part of an electric rice cooker.

【Background technique】

The inner tank of the electric rice cooker in the prior art adopts the bottom of the inner tank to be heated up and welded with a brazing material by high-frequency heating or a layer of aluminum sheet plus a layer of steel sheet is bonded together with a friction press. This type of product has the following defects:

1. Because the bottom needs to be heated to 500°C-700°C during the brazing bonding process, this temperature will cause irregular changes in the metallographic structure of the stainless steel. Because the stress has not been eliminated, the stress and corrosion resistance are not increased compared to the original There is a big difference between the temperature and temperature of the plate. After durable use, the bottom steel sheet will crack, and the irregular composition will cause rust, which will cause damage to the product.

2. During the bonding process between the stainless steel surface and the aluminum sheet, fluxes, adhesives, and mixing water should be added. These substances generate a large number of air bubbles at high temperature, and some air bubbles cannot be removed in time. The air bubbles formed during the welding process will become heat Passing obstacles, temperature differences appear.

3. Because the middle of the film is aluminum and the two clips are stainless steel, a bimetallic sheet is formed during welding. The expansion coefficient of aluminum is quite different from that of stainless steel, and it is easy to cause deformation and arcing at the bottom of the inner tank when heated. The surface is irregular, and some use convex ribs to reduce the contact heat transfer surface, resulting in poor heat conduction.

4. The film is made of stainless steel. The thermal conductivity of stainless steel is worse than that of aluminum. In addition, the area of the interlayer aluminum sheet is limited. The direct contact with the heating plate is stainless steel. The heat transfer path is: heating plate→stainless steel film→middle aluminum layer→stainless steel inner layer→ food. In this process, stainless steel adds obstacles to heat transfer, and poor transfer occurs, resulting in excessively high ambient temperature, resulting in irregular electrical performance and irregular malfunctions, and electrical functions cannot be reflected.

5. It is difficult to accurately control the R parameter of the concave bottom arc surface during the production process of the existing composite bottom-shaped stainless steel liner. The contact area between the inner liner arc surface and the heating plate is too small, and the temperature is irregular, resulting in burnt rice. Bottom, half raw and half cooked.

【Content of utility model】

The purpose of the utility model is to overcome the above-mentioned deficiencies in the prior art, and provide a simple structure, good heat transfer effect, low processing cost, strong plasticity, easy and accurate control of arc surface parameters at the bottom of the inner tank during processing and molding, and easy and accurate control during use. Not easily deformed, evenly heated, slightly sticky rice cooker liner.

The utility model is achieved through the following technical solutions:

An inner tank of an electric rice cooker, comprising a stainless steel inner tank body, the inner tank body is cylindrical with an open upper end and an inner convex bottom, and is characterized in that a heat conducting layer is arranged outside the inner tank body.

An electric rice cooker inner container as described above is characterized in that the bottom of the inner container body is provided with a plurality of ring-shaped punching ribs concentric with the inner container body.

The above-mentioned inner pot of an electric rice cooker is characterized in that the heat conduction layer has a uniform thickness and covers the outer side of the main body of the inner pot.

The above-mentioned inner pot of an electric rice cooker is characterized in that the heat conduction layer has a uniform thickness and covers the outer bottom of the inner pot body.

An electric rice cooker liner as described above is characterized in that the heat-conducting layer is a heat-conducting coating.

An electric rice cooker liner as described above is characterized in that the heat conducting layer is a copper layer.

An electric rice cooker liner as described above is characterized in that the heat conducting layer is an aluminum layer.

An electric rice cooker liner as described above is characterized in that the heat conducting layer is an alloy layer of copper and aluminum.

The inner container of an electric rice cooker as described above is characterized in that the lower part of the inner container body is provided with an inner convex part.

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

1. The main body of the inner tank of the utility model is made of single-layer stainless steel, which has a simple structure and does not need to weld the composite bottom; the inner stainless steel surface is bright and clean, and can directly contact food, which is environmentally friendly and hygienic.

2. The utility model is equipped with a uniform heat conduction layer outside the inner pot body, which has good heat transfer effect and good electrical control induction performance. The heat conduction layer can cover the entire outer side of the inner pot body, so that the inner pot body is heated evenly, and the cooking is not cooked. end.

3. The utility model is provided with a ring-shaped punching convex rib on the convex arc surface at the bottom of the inner tank body, which increases the strength of the bottom surface. It is easy to control the R parameter of the arc surface during the molding process, and it is not easy to deform during use. disc contact.

4. The heat conduction layer has good thermal conductivity, high temperature resistance and friction resistance.

【Description of drawings】

Fig. 1 is a perspective view of the utility model;

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

Fig. 3 is a sectional view of Embodiment 1 of the present utility model;

Fig. 4 is the top view of the utility model;

Fig. 5 is a sectional view of Embodiment 2 of the present utility model.

【Detailed ways】

Embodiment 1: a kind of electric rice cooker liner as shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, comprises liner body 1, and liner body 1 is the cylindrical shape of upper end opening, bottom inward convex, liner body 1 A heat conduction layer 2 attached to the inner tank body 1 is arranged on the outside, and the inner tank body 1 is made of stainless steel. The bottom of the liner body 1 is provided with a plurality of ring-shaped inwardly punched ribs 101 concentric with the liner body 1 . The thickness of the heat conduction layer 2 is uniform, and the heat conduction layer 2 covers the outside of the entire liner body 1 . The heat-conducting layer 2 is a heat-conducting coating, and may also be copper, aluminum or an alloy of copper and aluminum. The lower part of the liner body 1 is provided with an inner convex part 102, forming a better three-dimensional and double-layer effect in appearance.

The heat transfer path of the electric rice cooker liner of the utility model is: heating plate→heat conduction layer→stainless steel liner→food. The heat transfer is direct, the electrical control induction performance is good, and the heat conduction layer can cover the entire outer side of the inner tank body, so that the inner tank body is heated evenly. In this process, the stainless steel transfers heat to the cooked food, and the ambient temperature is called uniform, which can be controlled according to the function of the electrical performance.

The utility model uses a single-layer stainless steel liner, which can be directly stamped with a stainless steel plate, and the processing cost is low. There is a ring-shaped punching rib on the convex arc surface at the bottom of the liner body, which increases the strength of the bottom surface and is easy to control during the forming process. The R parameter of the arc surface is not easy to deform during use, and the contact between the bottom of the inner tank and the heating plate is improved.

Embodiment 2: The difference between Fig. 1, Fig. 2, Fig. 4, Fig. 5 and Embodiment 1 is that the thickness of the heat conducting layer 2 is uniform, and it only covers the outer bottom of the inner tank body 1, and the performance is stable at the same time.

Claims (9)

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).

Images