JP2006269089A - Electromagnetic induction heating cooking appliance for institutional use - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To surely prevent movement of heating coils in a simple constitution in the appliance with the heating coil for electromagnetic induction heating loaded to an outside bottom of a cooking pot heating by containing the cooked ingredients. <P>SOLUTION: The cooking pot 1 contains and heats the cooked ingredients, at least the outside surface of the cooking pot 1 axially supported to be rotatable is covered by a case 3, and the heating coils 10 for induction heating are fixed on a bottom surface of the cooking pot by a plurality of fixing bands 13. The heating coils are installed in a plurality of groups with specified spacing in the direction of a radius of the cooking pot and stoppers 21 are attached to be detachable positioned between the heating coils on the fixing bands and hooked in between ends of these heating coils. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a commercial electromagnetic induction heating cooker that cooks a large amount of food for business and food for lunch at once.

Using a cooking pan with a diameter of 1 meter or more, it is a commercial cooking device that cooks a large amount of ingredients such as foods sold at convenience stores and foodstuffs such as school lunches at one time. Similarly, the cooking pan 1 is configured to be rotationally driven by a pair of left and right rotating shafts 4 and 4, and the side periphery of the cooking pan 1 is surrounded by the outer case 3 and is used for induction heating at the outer bottom of the cooking pan. In the case where the heating coils 7, 8, and 9 are mounted, the heating coil is fixed by a plurality of band-shaped fixing bands 14.
JP 2002-231430 A

  In the above case, since the weight of the heating coil is around 10 kg, when the center of gravity of the heating coil is increased by rotating the cooking pan around the rotating shaft, the frictional force between the heat insulating material and the heating coil and between the heating coil and the fixed band is increased. There is a problem that the heating coil tends to move downward due to its own weight.

  Therefore, the present invention aims to reliably prevent the movement of the heating coil during the rotation of the cooking pan with a relatively simple configuration.

  According to the first aspect of the present invention, the cooking object is stored and heated, and at least the outer side surface of the cooking pot pivotally supported is surrounded by the case, and the cooking pot is provided by a plurality of fixing bands. In the case where the heating coil for induction heating is fixed on the outer bottom surface, the heating coil is arranged in a plurality of groups at predetermined intervals in the radial direction of the cooking pan, and located between the heating coils of the fixed band. These stoppers are detachably mounted between the end portions of the heating coils.

  According to a second aspect of the present invention, in the configuration of the first aspect, the stopper includes a hollow cylindrical spring pin that is engaged between the heating coils, and a fixing bracket that fixes the spring pin to a fixing band. It consists of.

  The structure of Claim 3 of the present invention is the structure of Claims 1 and 2, in which a ceramic fixing ring is mounted at the substantially center position of the outer bottom of the cooking pan, and one end of the fixing band is fixed to the fixing ring. The end is fixed to the case via a spring.

  According to the configuration of the first aspect of the present invention, a stopper that is inserted between the heating coils and prevents the movement of the heating coils is detachably attached to the fixed band, so that the cooking pan can be configured with a relatively simple configuration. It is possible to reliably prevent the movement of the heating coil during rotation.

  According to the second aspect of the present invention, the stopper is constituted by the spring pin and the fixing bracket for fixing the spring pin to the fixing band, so that the mounting position of the spring pin can be simplified according to the mounting position of the heating coil. Thus, the movement of the heating coil can be surely prevented by the spring pin, and at the same time, it can be constructed at a relatively low cost by using a general-purpose product for the spring pin.

  According to the third aspect of the present invention, the movement of the heating coil can be prevented even if the pressing force of the heating coil by the fixed band is somewhat reduced by preventing the movement of the heating coil by the stopper. Thus, the fixing band is fixed via the spring, so that the fixing ring and the fixing band due to overtightening of the fixing band can be prevented.

  An embodiment of the present invention will be described first with reference to FIG. 1. Reference numeral 1 denotes a cooking pan in which an object to be cooked is placed and heated, and an aluminum material is formed into an arm shape having an upper surface opened by casting, and this cooking pan. The cooking pan 1 and the case 3 are rotated to the bases 5 and 6 by a pair of rotating shafts 4 and 4 which are surrounded by a hollow cylindrical case 3 and are connected to the left and right sides of the case. Supports freely.

  The pedestal 6 accommodates and arranges a drive motor 7 for rotationally driving the rotary shafts 4 and 4 and a control circuit 8 for controlling energization of the drive motor and the like, and an operation box 9 is provided at the top. Standing up.

  In the above embodiment, the cooking pot 1 is formed of an aluminum material, and a dielectric layer (not shown) in which a dielectric material such as iron is thermally sprayed is formed on the outer bottom portion so that induction heating is possible. Using a dielectric material such as SUS403 or a material that is relatively easy to process such as SUS304, iron powder is sprayed on its outer bottom to make it suitable for electromagnetic induction heating, or a clad material used for other electromagnetic induction heating Etc. may be used.

  On the other hand, on the outer bottom portion of the cooking pan 1, as shown in FIG. 2, for example, ring-shaped induction heating coils 10, 11 divided into two groups are connected to the outer bottom surface of the cooking pan 1. The heat insulation material 12 and the heating coils 10 and 11 are fixed to each other by a plurality of nonmagnetic metal plates made of aluminum or SUS304. The band 13 is pressed against the outer bottom surface and fixed.

  Further, the fixed band 13 ··· is formed in a band shape having a predetermined width dimension, and the one end 14 ··· is bent in a U-shape and disposed at the approximate center of the outer bottom portion of the cooking pan 1. The other end 16 is fixed to the inner surface of the case 3 via a spring 17 as shown in FIG. The fixing bolt 18 is locked.

  The fixing bolts 18 are screwed into the nuts 20 of the fixing bracket 19 fixed to the inner wall of the case 3 so as to be movable in the vertical direction, and the upper ends of the springs 17. One end is locked, and the other end of the spring is locked to the other end 16 of the fixing band 13.

  Thereby, the fixing bolts 18 are screwed upward to increase the tension of the springs 17 and so that the pressing force of the heating coils 10 and 11 to the outer bottom surface of the cooking pan 1 by the fixing bands 13 and so on is increased. On the contrary, by moving the fixing bolts 18... Downward, the tension of the springs 17.

  In addition, a rubber sheet 19 is interposed between the fixed band 13... And the heating coils 10 and 11 to prevent damage to the heating coil due to contact between the fixed band 13 and the heating coils 10 and 11. These frictional resistances are increased to prevent the heating coil from moving.

  With the above configuration, the fixing band 18... Is fixed via the spring 17..., So that the fixing bolt 18. It is possible to prevent the fixing band 18... And the fixing ring 15 from being damaged due to the movement of the center of gravity and the addition of rotational force at the start of the rotation of the pan 1.

  In the above embodiment, a pair of springs 17 are connected to the other ends 16 of the fixed bands 13, but the present invention is not limited to this. The tension of the spring 17 is adjusted by the rotation of the fixing bolt 18 .., but it may be adjusted by the rotation of the nut 20... A combination other than the fixing bolt 18 and the nut 20. You may comprise so that it may adjust by.

  .. 21 are stoppers fixed between the heating coils 10 and 11 of the fixed band 13... As shown in FIG. The grooved spring pins 22 are formed in a substantially U shape, and one ends 23 are respectively engaged with the ends of the spring pins, and the other ends 24 are opposed to each other at a predetermined interval. These are constituted by fixing brackets 27... Which are connected and fixed by bolts 25... And nuts 26.

  With these configurations, when the cooking pan 1 is rotated by the drive motor 7, the center of gravity of the heating coils 10 and 11 rises with the inclination of the cooking pan, and the heating coil easily moves in the lower direction due to its own weight. The movement of the heating coils 10 and 11 can be reliably prevented by the pins 22.

  The spring pins 22, the fixing brackets 27, the bolts 25, and the nuts 26 are made of, for example, SUS304 non-magnetic material or aluminum, so that the heating coils 10 and 11 are energized. Temperature rise at can be prevented.

  Further, in the above embodiment, the use of a general-purpose spring pin 22... Prevents the increase in cost due to the design of the dedicated product. However, the present invention is not limited to this. Any shape that is positioned and prevents movement of the heating coil may be used.

  The drive motor 7 prevents the heating coils 10 and 11 from moving due to their own weight when the cooking pan 1 is rotated.

  Furthermore, by fixing the end of the fixing band 13... Via the spring 17..., Compared to the case where it is directly fixed to the case 3 with a bolt or the like, the bolt is over tightened or the cooking pan 1 is in the initial rotation. It is possible to prevent damage to the fixing ring 15 and the fixing band 13 due to a temporary load.

It is a side longitudinal cross-sectional view which shows the Example by this invention. It is a bottom view of the principal part similarly. It is side surface longitudinal cross-sectional view of the principal part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cooking pan 3 Case 10 Heating coil 11 Heating coil 13 Fixing band 15 Fixing ring 17 Spring 21 Stopper 22 Spring pin 27 Fixing metal fitting

Claims (3)

A heating coil for induction heating is provided on the outer bottom surface of the cooking pan with a plurality of fixing bands, while encasing at least the outer side surface of the cooking pan, which stores and heats the object to be cooked, and is rotatably supported. The heating coils are arranged in a plurality of groups at predetermined intervals in the radial direction of the cooking pan, and positioned between the heating coils of the fixed band. An electromagnetic induction heating cooker for business use, which is detachably equipped with a stopper that is inserted in between. 2. The business use according to claim 1, wherein the stopper includes a hollow cylindrical spring pin that is engaged between the heating coils, and a fixing bracket that fixes the spring pin to the fixing band. 3. Electromagnetic induction cooker. A ceramic fixing ring is mounted at the substantially center position of the outer bottom of the cooking pan, and one end of the fixing band is fixed to the fixing ring and the other end is fixed to the case via a spring. The electromagnetic induction heating cooker for business use according to claim 1 or 2.

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