JP4171678B2 - Cooker - Google Patents

Description

  The present invention relates to a heating cooker installed in a household sink.

  In this kind of kitchen cooking appliances for home use, for the purpose of improving fire safety, one using an induction heating coil that does not use fire as a heat source has started to spread. Moreover, as this heating cooker, there are two types, a built-in type installed so as to be incorporated in a kitchen sink and a stationary type installed at a predetermined position on the sink.

  Prior art document information of this type of cooking device includes the following.

JP 7-31280 A JP 2002-175874 A JP 2002-237378 A

  In the heating cookers of these patent documents, the top plate provided on the upper surface of the case is provided with three heating parts by the heating means provided in the case, and the two heating parts in front of the heating means are heating means. An induction heating coil is used, and a radiant heater is used as one heating part at the rear.

  And in patent document 1, in order to display the energization state and heating range of the heating part by an induction heating coil by simple structure, the said top plate is comprised with the crystallized glass etc. which permeate | transmit light. In addition, a plurality of heat-resistant and heat-insulating heat-insulating light pipes and a light-emitting diode surrounded by the heat-insulating light pipe are provided on the outer periphery of the induction heating coil, and the light-emitting diode is energized simultaneously with the induction heating coil to emit light. is doing.

  Moreover, in patent document 2, in order to make it easy to understand the position of the heating means used and the output state of the heating means, the display of the output states of the left and right induction heating coils and the central heater, and the position of the heating means Each display unit also serving as a display is configured to be provided along the outer peripheral part of the corresponding heating means.

  Further, in Patent Document 3, in order to clearly display the heating state with a continuous graphic at a position corresponding to the heating coil of the top plate, the inner diameter is slightly larger than the outer diameter of the induction heating coil, and the reflective layer is formed below. Is provided below the outer periphery of the induction heating coil, and light is input by a light bulb.

  However, in this type of cooking device, since the top plate has a flat surface, the pan moves due to vibration caused by boiling during cooking and cannot be heated sufficiently. There was a risk of moving and dropping out. Also, as shown in the above patent documents, various proposals have been made to inform the user of the heating state, but there is a problem that the display state cannot be confirmed unless viewed from above in any configuration.

  Therefore, an object of the present invention is to provide a cooking device that can reliably prevent the pan from moving outside the heating range and can easily check the heating state.

In order to solve the above-mentioned problem, the heating cooker of the present invention includes a case having a top plate disposed on the upper surface, and the top plate is provided with two or more heating portions by heating means disposed in the case, In a heating cooker in which the heating means of at least one first heating part is constituted by an induction heating coil, an annular restriction having an inner diameter substantially the same as the maximum diameter pan that can be used in the first heating part by the induction heating coil provided with a ring, as a positioning means for positioning said regulating ring around the first heating portion to a specified position, at a distance so as not to affect the electromagnetic wave generated from the induction heating coil, the interior of the regulating ring An adsorbent is disposed on the bottom surface, and a magnet for adsorbing the adsorbent is disposed on the back of the top plate.

  In this heating cooker, it is preferable that a light emitting means for emitting light by electromagnetic waves generated by the induction heating coil is provided on the outer peripheral portion of the regulating ring.

  In the heating cooker according to the present invention, the restriction ring can be detachably attached to the heating part by the induction heating coil, so that the position where the pan is placed can be easily confirmed, and even if the restriction ring becomes dirty, it can be easily washed. can do. Further, it is possible to prevent the pan from moving due to vibration caused by boiling during cooking and to maintain the position at a predetermined position.

  Furthermore, at the time of cooking, since the light emitting means provided on the outer peripheral portion of the regulating ring is configured to emit light by electromagnetic waves generated by the induction heating coil, the heating state can be confirmed even from the front.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIGS. 1 to 4 show a stationary heating cooker according to an embodiment of the present invention installed on a household sink. This cooking device includes three heating portions 13a, 13b, and 13c, and an annular regulating ring 40 is detachably disposed on the predetermined heating portions 13a and 13b. Specifically, this heating cooker generally includes a roaster unit 16, a substrate box 20, a partition plate 27 that partitions the upper portion of the roaster unit 16, and three heating means 29 and 30 inside the case 10. 31, a display unit 33, and an operation unit 36 are accommodated.

  As shown in FIGS. 1 to 3, the case 10 generally has a glass top plate 12 and a lid frame 14 disposed on the upper surface of a case body 11 having an upper end opened. The case body 11 is provided with an opening on the left side of the front surface where the door 18 of the roaster unit 16 is located. In addition, an opening in which the operation unit 36 that can be opened and closed is located on the right side of the front surface. The top plate 12 includes heating portions 13a, 13b, and 13c corresponding to three heating means 29, 30, and 31, which will be described later. Each of the heating units 13a to 13c is provided with a circular pattern that serves as a mark when a pan (not shown) is arranged. A transparent portion through which the display panels 35a, 35b, and 35c can be seen is provided on the right side of the front surface of the top plate 12. The lid frame 14 is attached to the upper end opening of the case body 11, and is provided with an opening that exposes a portion excluding the top plate 12 and the outer peripheral edge, and an opening that constitutes an intake / exhaust port. In the opening of the intake / exhaust port, an intake duct portion 20a of the board box 20 constituting the intake hole, a roaster exhaust duct 19 of the roaster unit 16 constituting the exhaust port, and a main body exhaust port 49 are arranged. A metal porous cover 15 is disposed on the upper surface. The main body exhaust port 49 is for collectively exhausting cooling air flowing into the case 10 by a cooling fan 26 described later.

  The roaster unit 16 is a well-known unit in which a heater (not shown) is disposed in a metal roaster case 17 and a door 18 having a gripping portion 18 a is disposed on the front surface of the roaster case 17. An L-shaped roaster exhaust duct 19 that communicates with the interior of the roaster case 17 is connected to the rear portion of the roaster case 17, and the exhaust gas is exhausted through the upper porous cover 15 via the roaster exhaust duct 19.

  The board box 20 is made of a resin made up of a pair of lower case 21 and upper case 22, and the upper surface of the upper case 22 has a lower control board arrangement on which control boards 25 A and 25 B and a cooling fan 26 are arranged. A partition plate is configured to partition into the installation portion 23 and the upper induction heating coil arrangement portion 24 where the first induction heating coil 29 is arranged. The control board disposing portion 23 is further divided into a front substrate disposing portion and a rear fan disposing portion by a partition wall, and the two control substrates 25A and 25B are vertically spaced at a predetermined interval in the substrate disposing portion. The drum-shaped cooling fan 26 is disposed in the fan disposition portion so that the rotation axis thereof extends horizontally from side to side. In addition, an intake duct portion 20 a for sucking outside air is provided behind the substrate box 20.

  The partition plate 27 is disposed on the upper surface of the roaster unit 16 so as to be substantially flush with the upper surface of the substrate box 20, and partitions the upper heating means disposition portion with the upper surface of the substrate box 20. . The partition plate 27 is provided with a bottom plate 28 that extends to the step portion of the substrate box 20 at the rear.

  As shown in FIGS. 1 and 4, the three heating means are disposed on the left front side on the partition plate 27 and the first induction heating coil 29 disposed on the front right side on the substrate box 20. It comprises a second induction heating coil 30 and an electric heater 31 disposed in the rear center on the bottom plate 28 of the partition plate 27. Here, the first induction heating coil 29 and the second induction heating coil 30 perform electromagnetic induction heating of the pan via the top plate 12 when a high-frequency current is applied. The electric heater 31 is a radiant heater that is unitized by covering a lower portion and an outer peripheral portion with a heat insulating cover. In front of the electric heater 31, a heat shield plate 32 is provided for partitioning between the induction heating coils 29 and 30 for heat insulation.

  As shown in FIGS. 2A and 4, the display unit 33 is disposed on the front upper portion of the board box 20 on the right front side opposite to the roaster unit 16 in the case 10. The display unit 33 includes a display substrate 34 and display panels 35 a, 35 b, and 35 c that are three display means disposed on the display substrate 34. The display panel 35a located on the right side displays the setting state of the first induction heating coil 29 located on the front right side. The display panel 35b located at the center displays the setting state of the electric heater 31 and the roaster unit 16 located at the rear center. The display panel 35c located on the left side displays the setting state of the second induction heating coil 30 located on the front left side.

  As shown in FIGS. 1 and 2A, the operation unit 36 that is an input means includes a base body 37 having a triangular cross section, and is located on the front surface of the case 10 so as to be positioned below the display unit 33. It is arranged so that it can be opened and closed. The operation unit 36 inputs the operations of the three heating means 29, 30, 31 and the roaster unit 16, and has three operation units 38a, 38b, which substantially coincide with the display panels 35a, 35b, 35c in the vertical direction. 38c. Specifically, the operation unit 38a coincides with the display panel 35a in the vertical direction, and operates the first induction heating coil 29 on the right front side. The operation unit 38b coincides with the display panel 35b in the vertical direction, and operates the roaster unit 16 and the electric heater 31 at the rear center. The operation unit 38c is aligned with the display panel 35c in the vertical direction, and operates the second induction heating coil 30 on the left front side. The operation unit 36 is provided with a lock operation unit 39 for making it impossible to operate all the operation units 38a to 38c.

  As shown in FIGS. 1 and 2A and 2B, the restriction ring 40 is formed of a heat-resistant resin such as phenol or a metal, and includes first and second heating parts 13a, It is an annular shape having a hollow shape having substantially the same inner diameter as the maximum diameter pan usable in 13b. On the inner surface of the restriction ring 40, a slanting portion 41 is provided that is inclined downward and inward from the upper end. Further, an LED 42 is disposed on the outer peripheral surface of the regulating ring 40 as a light emitting means for displaying a heating state at a predetermined interval. Further, a coil 43 that generates an induced current by electromagnetic waves from the induction heating coils 29 and 30 is disposed inside the regulation ring 40, and the induced current generated by the coil 43 is supplied to the LED 42 to emit light. It is composed. Further, an adsorbent 44 that is attracted to magnetic force as a positioning means is disposed on the inner bottom surface of the regulating ring 40, and a magnet 45 is disposed on the back of the top plate 12. The adsorbent 44 is disposed at a position away from the influence of the electromagnetic waves generated from the induction heating coils 29 and 30, and the magnet 45 affects the electromagnetic waves generated from the induction heating coils 29 and 30. It is arranged at a remote position that does not reach.

  In the induction heating cooker configured as described above, when cooking is performed using the heating units 13a and 13b by the induction heating coils 29 and 30, the restriction ring 40 is first placed on the heating units 13a and 13b. To do. Then, the restricting ring 40 is disposed at a specified position with the heating parts 13a and 13b as the center by adsorbing the adsorbent 44 to the magnet 45.

  In this state, when cooking is started by the induction heating coils 29 and 30 by operating the operation parts 38a and 38c, electromagnetic waves alternated by high-frequency current flowing through the induction heating coils 29 and 30 are generated, and the top plate is caused by the electromagnetic waves. An eddy current is generated in the pan through 12. This causes the pan to generate heat, so that the desired cooking can be performed. Further, the coil 43 installed in the alternating magnetic field of the induction heating coil generates an induced current by electromagnetic induction action, and the induced current is supplied to the LED 42, whereby each LED 42 emits light (lights up).

  Thus, in the cooking device of the present invention, the restriction ring 40 can be detachably attached to the heating portions 13a and 13b by the induction heating coils 29 and 30, so the position (center) where the pan is placed can be easily set. In addition, it can be easily cleaned even if the regulating ring 40 is dirty. Further, it is possible to prevent the pan from moving due to vibration caused by boiling during cooking and to maintain the position at a predetermined position. These effects are conspicuous in the case of a stationary cooking device having a small area of the top plate 12.

  Further, during cooking, the LED 42 disposed as a light emitting means on the outer periphery of the regulating ring 40 is lit by an induced current generated by electromagnetic waves generated by the induction heating coil, so that the heating state can be obtained from the front without using a cord or the like. Can be confirmed.

  In addition, the cooking-by-heating machine of this invention is not limited to the structure of the said embodiment, A various change is possible.

For example , in the above-described embodiment, the LED 42 is caused to emit light by the coil 43 that generates an induction current using the electromagnetic wave of the induction heating coil. However, when a different temperature is applied to the pair of contact substrates, a thermoelectric generator that generates electricity at the temperature difference is provided. The power may be generated by the difference between the temperature of the induction heated pan and the temperature of the air, and the power may be supplied to the LED 42 to emit light.

It is a perspective view which shows the heating cooker of this invention. (A) is a front longitudinal cross-sectional view of FIG. 1, (B) is the elements on larger scale of (A). It is a front cross-sectional view of FIG. It is a top view of the state which removed the top plate.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Case 12 ... Top plate 13a, 13b, 13c ... Heating part 16 ... Roaster unit 29 ... 1st induction heating coil (heating means)
30 ... 2nd induction heating coil (heating means)
31 ... Electric heater (heating means)
40 ... regulation ring 42 ... LED
43 ... Coil 44 ... Adsorbent 45 ... Magnet (positioning means)

Claims (2)

A case in which a top plate is disposed on an upper surface; and two or more heating parts by heating means disposed in the case are provided on the top plate, and the heating means of at least one first heating part is formed by an induction heating coil. In the configured cooking device,
An annular restriction ring having an inner diameter substantially the same as the maximum diameter pan that can be used in the first heating part by the induction heating coil is provided, and the restriction ring is positioned around the first heating part at a specified position. As a positioning means, an adsorbent is disposed on the inner bottom surface of the regulating ring at a position away from the electromagnetic wave generated from the induction heating coil, and the adsorbent is adsorbed on the back portion of the top plate. A cooking device comprising a magnet.   The cooking device according to claim 1, wherein a light emitting means for emitting light by an electromagnetic wave generated by the induction heating coil is provided on an outer peripheral portion of the regulating ring.

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