CN210810583U - Compound film - Google Patents

Abstract

The utility model provides a double-film sheet, which comprises a magnetic conduction body, wherein the magnetic conduction body comprises a hollow part and a central part which are connected into a whole, and the hollow part comprises a plurality of long holes which are uniformly distributed on the magnetic conduction body and extend along the radial direction of the magnetic conduction body; the central part is the center of the magnetic conduction body, and the central part is provided with a complete effective magnetic conduction circular surface with the diameter equal to or less than 5 cm. The utility model discloses a diameter less than or equal to 5 cm's magnetic conduction disc has certain magnetic conduction area in addition in the design of the fretwork portion that has radial slot hole, has reduced the uneven problem of heating that the deformation leads to.

Description

Compound film

Technical Field

The utility model relates to a compound film of compound end aluminium pot.

Background

The bottom of the composite bottom aluminum pot which can be used for the induction cooker is compounded with the composite bottom sheet, the composite bottom sheet enables the bottom of the aluminum pot to have magnetic conductivity, and meanwhile, most of the advantages of the traditional aluminum pot can be kept. A compound film for making compound end aluminium pot is mostly central trompil, the circular iron sheet of fretwork around, and central trompil is the trompil about diameter 5cm for the effective magnetic conduction area of iron sheet is littleer, and the heating effect of compound end aluminium pot on the electromagnetism stove of making is poor.

In the prior art, holes are not formed in the composite bottom sheet or the circular holes are uniformly distributed, so that when a pot body is heated, the composite bottom sheet is different from an aluminum pot in material, the expansion of different degrees can be generated, the pot bottom is greatly deformed in a concave-convex fluctuation mode, the heat in the pot is uneven, and the cooking effect is influenced.

Disclosure of Invention

The utility model provides a simple structure's compound film to solve among the prior art compound film magnetic conduction area little, the inhomogeneous technical problem of heating.

The utility model provides a technical scheme that above-mentioned technical problem adopted does:

the compound bottom plate comprises a magnetic conduction body, the magnetic conduction body comprises a hollow part and a central part which are connected integrally, and the hollow part comprises a plurality of long holes which are uniformly distributed on the magnetic conduction body and extend along the radial direction of the magnetic conduction body; the central part is the center of the magnetic conduction body, and the central part is provided with a complete effective magnetic conduction circular surface with the diameter equal to or less than 5 cm.

Further, the diameter of the effective magnetic conduction round surface is equal to 5 cm.

Furthermore, a notch is formed in the edge of the magnetic conduction body, and one end, close to the edge of the magnetic conduction body, of the long hole is communicated with the notch.

Further, the number of the notches is at least 1.

Furthermore, the breach has 4, respectively along leading magnetic body edge circumference two liang of interval 90 settings.

Further, the long holes include at least 2 sub-long holes located on the same radius.

Compared with the prior art, the utility model has the advantages of, adopt diameter less than or equal to 5 cm's magnetic conduction disc to have the design of the fretwork portion of radial slot hole in addition, guaranteed certain magnetic conduction area, reduced the uneven problem of heating that the deformation leads to.

Drawings

Fig. 1 is a schematic structural view of a double-bottom sheet according to embodiment 1 of the present invention.

Fig. 2 is a schematic structural view of the double-bottom sheet with a notch of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1, the composite bottom sheet of embodiment 1 of the present invention includes a magnetic conductive body 1, and the magnetic conductive body 1 is a circular magnetic conductive sheet, such as a circular iron sheet or a circular stainless steel sheet. Magnetic conduction body 1 includes fretwork portion and central part 3, and fretwork portion includes along the radial slot hole 2 that extends of circular magnetic conduction piece, and a plurality of slot hole 2 evenly distributed forms fretwork portion in magnetic conduction body 1. The central portion 3 is the center of the magnetic conductive body 1, and no through hole is formed in the central portion, so as to ensure that the central portion can be used as a complete effective magnetic conductor, in this embodiment, the central portion 3 has a complete effective magnetic conductive surface with a diameter less than or equal to 5cm, especially a magnetic conductive circular surface with a diameter of 5 cm. The central part 3 is integrally connected with the hollow part.

When the pot body heats, the compound film that has the slot hole receives the influence of deformation to be less than the compound film of round hole far away or not trompil, in order to guarantee certain magnetic conduction area, and the uneven problem of heating that the minimize deformation leads to, the utility model discloses a diameter less than or equal to 5 cm's magnetic conduction disc can reach a better balanced effect in addition to the design of the fretwork portion of radial slot hole on every side.

In the embodiment, the slot 2 is completely located inside the magnetic conductive body 1; as shown in fig. 2, a notch 4 is further formed in the edge of the magnetic conductive body 1, and one end of the slot hole 2 close to the edge of the magnetic conductive body is communicated with the notch 4. This kind of breach 4 can suitably set up 1 or a plurality of, can further reduce because of the bottom of a boiler is heated and leads to the degree that magnetic conduction body 1 edge takes place to deform. For example, 4 notches 4 are provided, and are respectively provided along the circumferential direction of the edge of the magnetic conductive body 1 at intervals of 90 degrees.

The long holes 2 are not limited to the shape and distribution in the drawings of the present invention, and for example, the long holes 2 may be divided into a plurality of sub-long holes on the same radius, for example, 2 sub-long holes arranged in sequence along the same radius. Or in other regularly spaced arrangements, etc.

To the compound end aluminium pot of non-circular end, correspondingly, adopt non-circular compound film, for example the compound film of square, the distribution mode of its slot hole 2 still can refer to the utility model discloses a principle sets up radial slot hole 2 according to the inscribed circle or the circumscribed circle of the compound film of square to suitably prolong or reduce the radial length of slot hole 2 according to its magnetic conduction body 1. Similarly, like a rectangular double-bottom plate, the radial long hole 2 can be arranged according to an internal tangent ellipse or an external ellipse of the rectangle, and the radial length of the long hole 2 can be properly prolonged or reduced according to the actual shape of the magnetic conductive body 1. These should be readily apparent to those skilled in the art and will not be described in detail.

When using the utility model discloses a compound bottom piece is made compound end aluminium pot, adopts the compound end technology processing of heat, utilizes the intermediate frequency machine to heat the aluminium pot body to the uniform temperature, makes compound bottom piece and aluminium pot bottom stamping process closely glue the jail with the friction press with compound bottom piece and aluminium pot bottom, is difficult for taking place to fall the end phenomenon.

Claims (5)

1. The compound film comprises a magnetic conduction body (1), the magnetic conduction body (1) comprises a hollow part and a central part (3) which are connected integrally, and the hollow part comprises a plurality of long holes (2) which are uniformly distributed in the magnetic conduction body (1) and radially extend along the magnetic conduction body (1); the central part (3) is the center of the magnetic conduction body (1), and is characterized in that: the magnetic conduction body (1) is characterized in that the central part (3) is provided with a complete effective magnetic conduction round surface with the diameter equal to or smaller than 5cm, a notch (4) is further formed in the edge of the magnetic conduction body (1), and one end, close to the edge of the magnetic conduction body (1), of the long hole (2) is communicated with the notch (4).

2. The composite bottom sheet of claim 1, wherein: the diameter of the effective magnetic conduction round surface is equal to 5 cm.

3. The composite bottom sheet of claim 1, wherein: the number of the notches (4) is at least 1.

4. The composite bottom sheet of claim 1, wherein: the number of the notches (4) is 4, and the notches are respectively arranged along the edge of the magnetic conduction body (1) at intervals of 90 degrees in a pairwise manner.

5. The composite bottom sheet of claim 1, wherein: the long holes (2) comprise at least 2 sub-long holes positioned on the same radius.

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