JP2010211980A - Induction heating cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To fix an insulation plate arranged above heating coils to a top-plate support body, in a body structure. <P>SOLUTION: The induction heating cooker includes a heating coil 16, a support body 17 supporting the heating coil 16 from under, an inverter substrate 18 for driving the heating coil 16, a top plate 11 made of a heat-resistant insulating material arranged above the heating coil 16, a top-plate support body 12 supporting the top plate 11 from under, and an outer shell 14 supporting the top-plate support body 12. As the top-plate support body 12 includes a heat-resistant insulating plate 22 fixed so as to cover an upper part of the heating coil 16, a gap is secured between the heating coil and the insulating plate without cost hike to satisfy cooling performance, and at the same time, there is no risk of electric shock even if the body is let to fall off by error to have the top plate broken, leading to higher safety. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a main body configuration of an induction heating cooker.

  Conventionally, as a main body configuration of this type of induction heating cooker, for example, a heat-resistant insulating plate is disposed on the upper surface of the heating coil, and the insulating plate is fixed to a support that supports the heating coil. There is one that shields radiant heat from a pan such as a frying pan to the heating coil (see, for example, Patent Document 1).

15 and 16 show a conventional main body configuration described in the above-mentioned document. 15 and 16, there is a top plate 1 made of a ceramic plate or the like, and the top plate 1 is supported by a top plate support 2 from below. Below the top plate support 2 is an outer shell 3 which constitutes the main body. Below the top plate 1, a heating coil 4 is arranged to heat the pan. The heating coil 4 is supported from below by a resin support 5, and an inverter board 6 that drives the heating coil 3 is fixed below the support 5. A heat-resistant insulating plate 7 is covered above the heating coil 3, and the insulating plate 7 is fixed to a heating coil holding base 8 fixed to the support 5.
JP 2004-335295 A

  However, in the conventional configuration, it is necessary to provide a gap between the insulating plate 7 and the heating coil 3 in order to cool the heating coil 3. In this case, in order to fix the insulating plate 7, the heating coil holding base is used. 8 requires a separate part, which is costly, and since the fixing part is limited to the place where the heating coil holding base 8 is provided, the insulating plate 7 is bent and the heating coil 3 and the insulating plate are surely secured. 7 had a problem that a gap could not be secured.

  The present invention solves the above-mentioned conventional problems, in the main body configuration, without cost, ensuring a gap between the heating coil and the insulating plate, satisfying the cooling performance, accidentally dropping the main body, It is an object to provide a highly safe device that does not expose a charged part even when the top plate is cracked and does not cause an electric shock.

  In order to solve the conventional problem, the present invention is configured to fix an insulating plate disposed above a heating coil to a top plate support.

  Thereby, even if the cooling performance is satisfied at a low cost, and the top plate is broken by dropping the main body, there is no electric shock and the safety is increased.

  The induction heating cooker of the present invention can reduce the number of parts, fix the insulating plate so as to cover the heating coil, and reliably provide a gap between the heating coil and the insulating plate. It is possible to provide highly reliable equipment that efficiently satisfies the cooling performance.

  In addition, since the insulating plate covers the heating coil that is the charging unit, even if the main unit is dropped and the top plate is broken, the charging unit will not be exposed. However, since the user cannot touch the charging part and does not get an electric shock, a highly safe device can be provided.

  1st invention is a heating coil, the support body which supports the said heating coil from the downward direction, the inverter board | substrate which drives the said heating coil, and the top plate which consists of a heat resistant insulating material arrange | positioned above the said heating coil, A top plate support that supports the top plate from below, and an outer shell that supports the top plate support, and a heat-resistant insulating plate is provided on the top plate support so as to cover the top of the heating coil. By adopting a fixed configuration, it is possible to provide a highly safe device that does not cause an electric shock even if the cooling performance is satisfied at low cost and the main body is dropped and the top plate is broken.

  In particular, the second invention has a mounting surface provided with a plurality of holes below the top plate of the top plate support in the first invention, and the plurality of holes and the plurality of claws of the insulating plate are provided. Since the insulating plate is fixed on the top plate support by fitting, the insulating plate can be easily fixed, so that a device with good assemblability can be provided.

  In the third invention, in particular, the insulating plate according to the first or second invention is fixed to the mounting surface of the top plate support with a heat-resistant adhesive, so that the insulating plate can be securely attached. A highly reliable device that can be fixed can be provided.

  In the fourth invention, in particular, the insulating plate of the first to third inventions is fixed to the mounting surface of the top plate support by a fastening means, thereby fixing the insulating plate more reliably. It is possible to provide highly reliable equipment that can

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

(Embodiment 1)
1 to 4 show a top view of the induction heating cooker according to the first embodiment of the present invention with the top plate removed, a top view with the insulator removed, a cross-sectional view, and a detailed cross-sectional view.

  1-4, there is a top plate 11 composed of a ceramic plate or the like on which a pan or the like is placed. The top plate 11 is supported only from the outer peripheral portion from below, and supported by a top plate support 12 composed of resin. is doing. Both are bonded by a silicon adhesive 13. Below the top support 12, there is an outer shell 14 constituting the main body, which supports and fixes the top support 12. On the top plate 11, a metal substantially rectangular cooking plate 15 for cooking grilled meat or the like is placed. Below the top plate 11, a heating coil 16 for heating the cooking plate 15 is disposed at a position where a gap of several millimeters is provided. The heating coil 16 is supported by a resin support 17 from below. Below the heating coil 16, the heating coil 16 is driven, and an inverter board 18 having a heat generating component is disposed, and is fixed to the outer shell 14 made of resin. Next to the inverter board 18 of the outer shell 14, a cooling means 19 constituted by a heating motor 16, an inverter board 18, and a fan motor for cooling the inside of the main body with cooling air is disposed. A flange 20 connected to the entire circumference is provided on the inner peripheral portion of the top plate support 12, and a groove 21 is provided on the upper side of the flange 20, and the heat sink mica is configured to fit into the groove 21. An insulating plate 22 is placed and fixed. On the inverter board 18, a connecting part 23 which is a charging part for making an electrical connection with the heating coil 16. Further, the insulating plate 22 includes a charging part including the heating coil 16 and the connecting part 23 on the inverter board 18. It is fixed to the top plate support 12 so as to be completely covered (a shape larger than that of the heating coil). When the unit is formed, the insulating plate 22 is sandwiched between the top plate support plate 12 and the top plate 11 bonded to the top plate support plate 12 with the silicon adhesive 13, so that the top plate support 12. It is fixed to.

About the main body structure of the induction heating cooking appliance comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, in the above configuration, consider assembling the top plate portion of the main body. First, the top support 12 is prepared. Then, the insulating plate 22 is fitted into the groove 20 provided in the flange 20 of the top plate support 12. Then, the portion that was the central space of the top support 12 is covered with the shape of the insulating plate 22. In this state, the top plate 11 is placed on the top plate support 12, and both are bonded together with the silicon adhesive 13. This completes the top plate. When the top plate is set on the outer shell 14 in which the heating coil 16 and the like are configured, the shape of the insulating plate 22 is such that the heating coil 16 of the charging unit is completely covered. When viewed, the heating coil 16 is not exposed. Furthermore, since the insulating plate 22 is fixed to the top plate support 12, it is possible to reliably ensure a gap with the heating coil 16 without drooping downward. By securing this gap, the cooling air from the cooling means 19 flows on the heating coil 16 and the cooling performance of the heating coil 16 can be satisfied.

  Furthermore, since the insulating plate 22 is fixed at a position where the heating coil 16 is covered, even if the user drops the main body and breaks the top plate 11, the insulating plate 22 is obstructed by the insulating plate 22 and thus the heating coil. 16 is never exposed. Further, the charging part including the connection part 23 on the inverter board 18 is not exposed. Therefore, even if the main body is accidentally energized, there is no fear of touching the charging part, and there is no electric shock.

  As described above, in the present embodiment, the space between the heating coil and the insulating plate can be ensured without using a separate part (only with the top plate support), so that it is inexpensive. In addition, the above-described configuration can be realized, and even if the top plate is cracked, the charged portion is not exposed, so that a highly safe device can be provided.

  In the description of the present embodiment, the charging unit is described as a heating coil. However, since the charging unit is not exposed in the inverter board as well, a highly safe device can be provided.

  When the insulating plate is set on the top plate support plate, it is easier to set the insulating plate if there are positioning ribs or hole shapes.

  In addition, since an insulating plate with high heat shielding properties is laid under the top plate, it has the effect of greatly shielding the radiant heat from the cooking plate to the heating coil and inverter board, and the ambient temperature inside the main body is reduced. Can be reduced. Thereby, the exhaust heat temperature from a main body can also be reduced.

(Embodiment 2)
FIGS. 5-7 shows the top view, sectional drawing, and detailed sectional drawing which removed the top plate 11 of the induction heating cooking appliance in the 2nd Embodiment of this invention.

  5 to 7, the basic configuration is the same as that of the first embodiment, and therefore only the difference in configuration will be described. A mounting surface 24 is integrally provided on the inner peripheral portion of the top plate support 12, and a square hole 25 is provided on the mounting surface 24. A claw 26 is provided at an end of the insulating plate 22, and the insulating plate 22 is fixed to the top plate support 12 by fitting the plurality of square holes 25 and the claw 26 together. The insulating plate 22 covers the space portion of the top plate support 12 with this shape.

  About the main body structure of the induction heating cooking appliance comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

Since only the parts different from the contents of the first embodiment are described with respect to the operation and action, the same contents are referred to the first embodiment. First, in the above configuration, consider assembling the top plate portion of the main body. First, the top support 12 is prepared. Then, a plurality of claws 26 at the end of the insulating plate 22 are fitted into a plurality of square holes 25 provided on the mounting surface 24 of the top plate support 12 while the insulating plate 22 is bent. Then, since the insulating plate 22 is fixed to the top plate support 12 and a plurality of claws 26 are fitted into the square holes 25, the insulating plate 22 does not come off the top plate support plate 12. By setting the insulating plate 22, the portion of the space at the center of the top plate support 12 is covered with the shape of the insulating plate. In this state, the top plate 11 is placed on the top plate support 12, and both are bonded together with the silicon adhesive 13. This completes the top plate. When the top plate is set on the outer shell 14 in which the heating coil 16 and the like are configured, the shape of the insulating plate 22 is such that it completely covers the heating coil 16 of the charging unit. The heating coil 13 is not exposed. Furthermore, since the insulating plate 22 is fixed to the top plate support 12, it is possible to reliably ensure a gap with the heating coil 16 without drooping downward. By securing this gap, the cooling air from the cooling means 19 flows on the heating coil 16 and the cooling performance of the heating coil 16 can be satisfied.

  Furthermore, since the insulating plate 22 is fixed at a position where the heating coil 16 is covered, even if the user drops the main body and breaks the top plate 11, the insulating plate 22 is obstructed by the insulating plate 22 and thus the heating coil. 16 is never exposed. Further, the charging part including the connection part 23 on the inverter board 18 is not exposed. Therefore, even if the main body is accidentally energized, there is no fear of touching the charging part, and there is no electric shock.

  As described above, according to the present embodiment, the insulating plate can be easily set on the top plate support, and the gap between the heating coil and the insulating plate can be reliably ensured. Moreover, even if the top plate is cracked, the charged part is not exposed, so that a highly safe device can be provided.

  Of course, the same effect as described in the first embodiment can also be obtained.

(Embodiment 3)
FIGS. 8-11 shows the top view which removed the top plate 11, the top view which removed the insulating plate 22, sectional drawing, and detailed sectional drawing of the induction heating cooking appliance in the 3rd Embodiment of this invention.

  8 to 11, the basic configuration is the same as that of the first embodiment, and therefore only the difference in configuration will be described. A step 27 is provided on the mounting surface 24, and the silicon adhesive 13 is applied on the step 27 to bond the insulating plate 22.

  Since only operations and actions that differ from the contents of the first embodiment will be described, the same contents are referred to the first embodiment. First, in the above configuration, consider assembling the top plate portion of the main body. First, the top support 12 is prepared. Then, the silicon adhesive 13 is applied to the step 27 on the mounting surface 24 of the top plate support 12. The insulating plate 22 is placed with the position aligned from above. Thus, both are bonded and fixed. In this state, the top plate 11 is placed on the top plate support 12, and both are bonded together with the silicon adhesive 13. This completes the top plate. When the top plate is set on the outer shell 14 in which the heating coil 16 and the like are configured, the shape of the insulating plate 22 is such that the heating coil 16 of the charging unit is completely covered. When viewed, the heating coil 16 is not exposed. Furthermore, since the insulating plate 22 is fixed to the top plate support 12, it is possible to reliably ensure a gap with the heating coil 16 without drooping downward. By securing this gap, the cooling air from the cooling means 19 flows on the heating coil 16 and the cooling performance of the heating coil 16 can be satisfied.

Furthermore, since the insulating plate 22 is fixed at a position where the heating coil 16 is covered, even if the user drops the main body and breaks the top plate 11, the insulating plate 22 is obstructed by the insulating plate 22 and thus the heating coil. 16 is never exposed. Further, the charging part including the connection part 23 on the inverter board 18 is not exposed. Therefore, even if the main body is accidentally energized, there is no fear of touching the charging unit, and there is no electric shock.

  As described above, in the present embodiment, the space between the heating coil and the insulating plate can be ensured without using a separate part (only with the top plate support), so that it is inexpensive. In addition, the above-described configuration can be realized, and even if the top plate is cracked, the charged portion is not exposed, so that a highly safe device can be provided. In addition, since the insulating plate is securely bonded, it does not come off the top plate support, so that safety is further improved.

  Of course, the same effect as described in the first and second embodiments can also be obtained.

(Embodiment 4)
12-14 shows the top view which removed the top plate 11, the top view which removed the insulating plate 22, and sectional drawing of the induction heating cooking appliance in the 4th Embodiment of this invention.

  12 to 14, the basic configuration is the same as that of the first embodiment, so the first embodiment is referred to. Fastening means 28 composed of screws for fixing the insulating plate 22 to the top plate support 12 is formed on the mounting surface 24.

  About the main body structure of the induction heating cooking appliance comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  Since only operations and actions that differ from the contents of the first embodiment will be described, the same contents are referred to the first embodiment. First, in the above configuration, consider assembling the top plate portion of the main body. First, the top support 12 is prepared. Then, the insulating plate 22 is set on the mounting surface 24 of the top plate support 12. Thereafter, the fixing position of the top plate support 12 and the hole of the insulating plate 22 are aligned and fixed by the fastening means 28. In this state, the top plate 11 is placed on the top plate support 12, and both are bonded together with the silicon adhesive 13. This completes the top plate. When the top plate is set on the outer shell 14 in which the heating coil 16 and the like are configured, the shape of the insulating plate 22 is such that it completely covers the heating coil 16 of the charging unit. The heating coil 16 is not exposed. Furthermore, since the insulating plate 22 is fixed to the top plate support 12, it is possible to reliably ensure a gap with the heating coil 16 without drooping downward. By securing this gap, the cooling air flows on the heating coil 16 and the cooling performance of the heating coil 16 can be satisfied.

  Furthermore, since the insulating plate 22 is fixed at a position where the heating coil 16 is covered, even if the user drops the main body and breaks the top plate 11, the insulating plate 22 is obstructed by the insulating plate 22 and thus the heating coil. 16 is never exposed. Further, the charging part including the connection part 23 on the inverter board 18 is not exposed. Therefore, even if the main body is accidentally energized, there is no fear of touching the charging part, and there is no electric shock.

  As described above, in the present embodiment, the insulating plate can be easily and reliably fixed to the top plate support by the fastening means, and the space between the heating coil and the insulating plate can be surely secured. A device can be provided, and even if the top plate is cracked, a charged part is not exposed, so a highly safe device can be provided.

  Naturally, the same effect as described in the first to third embodiments can also be obtained.

  As described above, the induction heating cooker according to the present invention can be applied to uses such as cooking appliances used on a table.

The top view which removed the top plate of the induction heating cooking appliance in Embodiment 1 of this invention The top view which removed the insulating board of the induction heating cooking appliance in Embodiment 1 of this invention Sectional drawing of the induction heating cooking appliance in Embodiment 1 of this invention Detailed sectional drawing of the induction heating cooking appliance in Embodiment 1 of this invention The top view which removed the top plate of the induction heating cooking appliance in Embodiment 2 of this invention Sectional drawing of the induction heating cooking appliance in Embodiment 2 of this invention Detailed sectional drawing of the induction heating cooking appliance in Embodiment 2 of this invention The top view which removed the top plate of the induction heating cooking appliance in Embodiment 3 of this invention The top view which removed the insulating board of the induction heating cooking appliance in Embodiment 3 of this invention Sectional drawing of the induction heating cooking appliance in Embodiment 3 of this invention Detailed sectional drawing of the induction heating cooking appliance in Embodiment 3 of this invention The top view which removed the top plate of the induction heating cooking appliance in Embodiment 4 of this invention The top view which removed the insulating board of the induction heating cooking appliance in Embodiment 4 of this invention Sectional drawing of the induction heating cooking appliance in Embodiment 4 of this invention Top view of the conventional induction heating cooker with the top plate removed Sectional view of a conventional induction heating cooker

DESCRIPTION OF SYMBOLS 11 Top plate 12 Top plate support body 13 Silicone adhesive 14 Outer shell 15 Cooking plate 16 Heating coil 17 Support body 18 Inverter board 19 Cooling means 20 Flange 21 Groove 22 Insulation plate 23 Connection part 24 Mounting surface 25 Square hole 26 Claw 27 Step 28 Fastening means

Claims (4)

A heating coil, a support that supports the heating coil from below, an inverter board that drives the heating coil, a top plate made of a heat-resistant insulating material disposed above the heating coil, and the top plate below A top plate support that supports the top plate, and an outer shell that supports the top plate support, and a heat-resistant insulating plate is fixed to the top plate support at a position covering the heating coil. Cooking cooker. Below the top plate of the top plate support body, there is a mounting surface provided with a plurality of holes, and the plurality of holes and a plurality of claws of the insulating plate are fitted, whereby the insulating plate is The induction heating cooker according to claim 1, which is fixed on a top plate support. The induction heating cooker according to claim 1 or 2, wherein the insulating plate is fixed to the mounting surface of the top plate support with a heat-resistant adhesive. The induction heating cooker according to any one of claims 1 to 3, wherein the insulating plate is fixed to the mounting surface of the top plate support by fastening means.

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