JP2009059492A - Induction heating cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cheap induction heating cooker with good user-friendliness, good maintainability, and, further, good installability. <P>SOLUTION: The induction heating cooker includes: a plurality of separate and independent induction heating devices 10 and 30; and a connection terminal device 40 converting alternating current power supply codes 11 and 31 respectively provided the induction heating devices 10 and 30 to one alternating current power supply code 41. Accordingly, good user-friendliness can be obtained since the plurality of induction heating devices 10 and 30 can be matched to a cooking space and combined freely; good maintainability can be obtained since, even when one of the induction heating devices 10 and 30 breaks down, the rest of the induction heating devices can be used; good installability can be further obtained since the induction heating cooker needs only one alternating current power supply; and, then, the cheap induction heating cooker can be provided. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a multi-mouth induction heating cooker used in general homes, restaurants and offices.

Conventionally, this type of multi-mouth induction heating cooker is equipped with a plurality of induction heating devices in one outer case (see, for example, Patent Document 1).
JP 2005-158329 A

  However, in the conventional configuration, since a plurality of induction heating devices are in one outer case, it is difficult to freely match the user's cooking space and to select a combination of a plurality of induction heating devices, Even when one of the induction heating devices breaks down, there is a problem that not all induction heating devices can be used during repair.

  The present invention solves the above-described conventional problems, and is easy to use by adapting to a cooking space or by freely selecting a combination of a plurality of induction heating devices, and one of the induction heating devices fails. Even if it does, etc., the remaining induction heating apparatus can be used and maintenance property is good, Furthermore, it aims at providing an inexpensive induction heating cooking appliance with one AC power supply and good workability.

  In order to solve the above-described conventional problems, an induction heating cooker according to the present invention includes a plurality of independent and independent induction heating devices, and a connection terminal device that converts AC power cords of the plurality of induction heating devices into one AC power cord. It is equipped with.

  As a result, a plurality of induction heating devices can be adjusted to the cooking space, or can be freely combined, and it is easy to use. Even if one of the induction heating devices fails, the remaining induction heating devices can be used. It is easy to maintain and can provide an inexpensive induction heating cooker with a single AC power source and good workability.

  The induction cooking device of the present invention can provide an inexpensive induction heating cooking device that is easy to use, has good maintainability, and has good workability.

  The first invention is an induction heating cooker including a plurality of independent and independent induction heating devices and a connection terminal device that converts the AC power cords of the plurality of induction heating devices into one AC power cord. Multiple induction heating devices can be used in the cooking space or can be freely combined, making it easy to use. Even if one of the induction heating devices fails, the remaining induction heating devices can be used and maintainability is improved. In addition, it is possible to provide an inexpensive induction heating cooker with a single AC power source and good workability.

  According to a second aspect of the invention, in particular, in the first aspect of the invention, the connection terminal device includes a filter circuit that reduces noise from the induction heating device, thereby taking into account the increase in noise caused by the routing of the AC power cord and the connection terminal. Since there is no need, an induction heating cooker with good maintainability can be provided.

  In particular, in the third invention, the filter circuit in the plurality of induction heating devices can be simplified by strengthening the filter circuit in the connection terminal device in comparison with the filter circuits in the plurality of induction heating devices in the second invention. An induction heating cooker can be provided with an inexpensive configuration.

  According to a fourth aspect of the invention, in particular, in any one of the first to third aspects of the invention, the connection terminal device includes a cooling means for suppressing a temperature rise of an electronic component that constitutes the connection terminal device. The temperature rise of the electronic component which comprises can be suppressed, and the induction heating cooking appliance which is easy to use can be provided.

  In the fifth aspect of the invention, in particular, in any one of the first to third aspects of the invention, the connection terminal device is cooled by the exhaust of the induction heating device. An induction heating cooker can be provided.

  In the sixth aspect of the invention, in particular, in any one of the first to third aspects of the invention, the connection terminal device is cooled by the heat generation preventive means, so that a heat dissipation plate, a Peltier element or the like is used as the heat generation preventive means. Thus, the connection terminal device can be cooled.

  In a seventh aspect of the invention, in particular, in any one of the first to sixth aspects of the invention, the connection terminal device has a power cutoff switch, and the power cutoff switch simultaneously shuts off the power sources of the plurality of induction heating devices. As a result, an energy-saving, safe, and easy-to-use induction heating cooker can be provided.

  In an eighth aspect of the invention, in particular, in any one of the first to seventh aspects of the invention, the connection terminal device includes state display means for displaying whether the AC power supply is energized or not energized, thereby providing easy-to-use guidance. A cooker can be provided.

  According to a ninth aspect of the invention, in particular, in any one of the first to eighth aspects of the invention, the connection terminal device has an informing means for informing whether the AC power supply is energized or not energized, so that the induction heating cooking is easy to use. Can be provided. In particular, if the notification means is a means for notification by means of a buzzer, a speaker, or the like, it is possible to reliably notify the user whether the AC power supply is energized or not energized.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIGS. 1-3 shows the structure of the induction heating cooking appliance in Embodiment 1 of this invention.

  As shown in FIG. 1, the first induction heating device 10 is provided with a first top plate 2 on an upper portion of a first outer case 1. The first top plate 2 is provided with a first heating unit 4 for heating a cooking container such as a pan by induction heating. Further, the first operation unit 5 is provided on the upper front surface of the first outer case 1.

  Similarly, the second induction heating device 30 is provided with a second top plate 22 on top of the second outer case 21. The second top plate 22 is provided with a second heating unit 24 for heating a cooking container such as a pan by induction heating. Further, the second operation unit 25 is provided on the upper front surface of the second outer case 21.

  The separated and independent first and second induction heating devices 10 and 30 are connected by a connection terminal device 40 so as to convert the AC power cords 11 and 31 into one AC power cord 41.

  Here, as shown in FIG. 2, a cooking container 3 such as a pan is placed above the heating unit 4 of the first top plate 2, and a first heating coil 6 is provided below. Yes. A first inverter circuit 7 for controlling the first heating coil 6 and a first control means 8 for operating the first inverter circuit 7 are provided below the first heating coil 6. . Further, a first temperature detecting means 9 including a thermistor for detecting the temperature of the cooking container 3 is provided at the lower part of the first top plate 2. The first control means 8 controls the output level of the cooking vessel 3 by operating the first inverter circuit 7 based on the temperature information of the first temperature detection means 9 to control the high-frequency current of the first heating coil 6. To do.

  A first cooling fan 12 for cooling the first heating coil 6 and the first inverter circuit 7 is provided in the first outer case 1. The first cooling fan 12 is controlled by the first control means 8.

  Further, as shown in FIG. 3, the first induction heating apparatus 10 is provided with a first filter circuit 13 that suppresses noise generated from the first inverter circuit 7 so as not to flow out to the commercial power supply 50 side. Yes.

  Similar to the first induction heating device 10, the second induction heating device 30 has the same configuration. That is, a second heating coil 26 is provided below the second top plate 22, and a second inverter circuit 27 that controls the second heating coil 26 and the second are below the second heating coil 26. The second control means 28 for operating the inverter circuit 27 is provided. A second temperature detecting means (not shown) including a thermistor for detecting the temperature of the cooking container 3 is provided below the second top plate 22. Furthermore, the second filter circuit 33 provided in the second induction heating device 30 suppresses the noise generated from the second inverter circuit 27 from flowing out to the commercial power source 50 side.

  The connection terminal device 40 is provided with a filter circuit 43 and a power cord connecting means 42. The power cord connecting means 42 connects the first AC power cord 11 and the second AC power cord 31 to the filter circuit 43. Connected to.

  In the filter circuit 43, noise generated from the first induction heating device 10 and the second induction heating device 30 is routed by the first AC power cord 11 and the second AC power cord 31, or by the power cord connecting means 42. The increase in noise is suppressed from flowing out from the AC power cord 41 to the commercial power source 50. As a result, the induction heating device can be freely connected without taking into account the increase in noise due to the routing of the AC power cord and the connection terminals. At the same time, since only one connection to the commercial power supply 50 is required, the workability of electrical work is good.

  In addition, in this Embodiment, although it is set as the induction heating apparatus of 2 necks, the induction heating apparatus of 3 or more openings may be sufficient. For example, the output level of the heating unit is a combination of 2000 W, 1200 W, and 2000 W with a three-port induction heating device, and the user can freely select the layout according to the cooking space, such as arranging them in a horizontal row.

  If one of the plurality of induction heating devices fails, the failed induction heating device can be removed from the power cord connecting means 42 and replaced or repaired easily. And since other induction heating devices which are not broken during repair can be used, the maintainability and serviceability are good.

  The filter circuit 43 of the connection terminal device 40 may be strengthened more than the first and second filter circuits 13 and 33, so that the filter circuits 13 and 33 inside the induction heating device can be simplified and inexpensively configured. it can.

  Further, when the filter circuits 13 and 33 inside the plurality of induction heating devices are sufficient, the filter circuit 43 of the connection terminal device 40 may be omitted, and if only a little is required, a ferrite core is simply wound around the AC power cord 41. It's okay.

  As described above, in the induction heating cooker according to the present embodiment, a plurality of induction heating devices can be adjusted to the cooking space or freely combined, and it is easy to use, and one of the induction heating devices fails. Even if it does, etc., the remaining induction heating apparatus can be used, it is easy to maintain, and furthermore, it is possible to provide an inexpensive induction heating cooker with a single AC power source and good workability.

(Embodiment 2)
FIG. 4 shows the configuration of the induction heating cooker in the second embodiment of the present invention. The same elements as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  As shown in the figure, in the induction heating cooker in the present embodiment, when the output level of the induction heating device is high, the temperature of the electronic components of the filter circuit 43 and the power cord connecting means 42 constituting the connection terminal device 40 Therefore, the temperature rise of the electronic component is suppressed by the cooling means 44 composed of a cooling fan or the like.

  As the power source of the cooling means 44, the AC power source in the connection terminal device 40 is used as it is, or the AC power source is rectified and used as a DC power source. The cooling means 44 is driven when the current detection means 45 detects the current flowing through the connection terminal device 40.

  In the present embodiment, the inside of the connection terminal device 40 is cooled by the cooling means 44, but the connection terminal device 40 uses the exhaust from at least one exhaust port of the induction heating devices 10 and 30 (for example, The connecting terminal device 40 may be cooled without the cooling means 44 by installing the connecting terminal device 40 immediately after the exhaust port. In this case, cooling can be performed with an inexpensive configuration without the cooling means 44.

  Further, when a cooling path is provided between at least one exhaust port of the induction heating devices 10 and 30 and the connection terminal device 40 to guide the exhaust, the connection terminal device 40 is installed immediately after the exhaust port of the induction heating device. The cooling effect can be obtained without doing so.

  In addition, the connection terminal device 40 may be cooled without the cooling means 44 by providing a heat generation prevention means including a heat radiating plate or a Peltier element instead of the cooling means 44. In this case, since there is no cooling means 44, the connection terminal device 40 can be sealed, so that the safety can be improved by making the connection terminal device 40 waterproof and dustproof.

(Embodiment 3)
FIG. 5 shows the configuration of an induction heating cooker according to Embodiment 3 of the present invention. The same elements as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  As shown in the figure, the induction heating cooker according to the present embodiment is provided with a power cut-off switch 46 in the connection terminal device 40, and the power cut-off switch 46 simultaneously cuts off the power of the plurality of induction heating devices 10 and 30. I can do it.

  Further, the connection terminal device 40 is provided with a status display means 47 made of LED, liquid crystal or the like, which displays whether the power cut-off switch 46 is energized or not energized.

  In addition, the connection terminal device 40 includes a buzzer, a speaker, and the like, and is provided with an informing means 48 for notifying whether the power cut-off switch 46 is energized or not energized by voice. It has come to let you know.

  In the present embodiment, the connection terminal device 40 is provided with the power cut-off switch 46, the status display means 47, and the notification means 48. However, if these are installed in the vicinity of the induction heating device, the convenience of the user is improved.

  As described above, the induction heating cooker according to the present invention is easy to use, has good maintainability, has good workability, and can provide an inexpensive induction heating cooker. The present invention can be applied to general cooking devices used in general homes, restaurants, offices and the like.

The perspective view of the induction heating cooking appliance in Embodiment 1 of this invention The block diagram which shows the heating state in the 1st induction heating apparatus of the induction heating cooking appliance. Block diagram showing the circuit configuration of the induction heating cooker The block diagram which shows the connection terminal device of the induction heating cooking appliance in Embodiment 2 of this invention The block diagram which shows the connection terminal device of the induction heating cooking appliance in Embodiment 3 of this invention

Explanation of symbols

4 1st heating part 6 1st heating coil 7 1st inverter circuit 8 1st control means 9 1st temperature detection means 10 1st induction heating apparatus 13 1st filter circuit 24 2nd heating part 26 second heating coil 27 second inverter circuit 28 second control means 30 second induction heating device 33 second filter circuit 40 connection terminal device 42 power cord connection means 43 filter circuit 44 cooling means 45 current detection means 46 Power cut-off switch 47 Status display means 48 Notification means 50 Commercial power supply

Claims (9)

An induction heating cooker including a plurality of independent and independent induction heating devices and a connection terminal device that converts an AC power cord of the plurality of induction heating devices into one AC power cord. The induction heating cooker according to claim 1, wherein the connection terminal device includes a filter circuit that reduces noise from the induction heating device. The induction heating cooker according to claim 2, wherein the filter circuit of the connection terminal device is strengthened from the filter circuits inside the plurality of induction heating devices. The induction heating cooker according to any one of claims 1 to 3, wherein the connection terminal device has a cooling means for suppressing a temperature rise of electronic components constituting the connection terminal device. The induction heating cooker according to any one of claims 1 to 3, wherein the connection terminal device is cooled by exhaust of the induction heating device. The induction heating cooker according to any one of claims 1 to 3, wherein the connection terminal device is cooled by heat generation prevention means. The induction heating cooker according to any one of claims 1 to 6, wherein the connection terminal device includes a power cut-off switch, and the power cut-off switch simultaneously cuts off the power sources of the plurality of induction heating devices. The induction heating cooker according to any one of claims 1 to 7, wherein the connection terminal device has state display means for displaying whether the AC power supply is energized or not energized. The induction heating cooker according to any one of claims 1 to 8, wherein the connection terminal device includes a notification unit that notifies whether the AC power source is energized or not energized.

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