JP2013239392A - Heating cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To secure a space for cooling a heating coil without expanding a height dimension between a top plate and a flat part in a built-in type heating cooker.SOLUTION: A heating cooker includes: a top plate having a width larger than an opening hole of a kitchen top plate and supported by the kitchen top plate, the top plate on which a heated object is placed; a housing where a width between left and right upper side parts of an upper part fixed to the top plate at its upper end is narrower than a width of the opening hole of the kitchen top plate and is wider than a kitchen cabinet opening and a width between left and right lower side parts formed at lower parts of the upper side parts is narrower than the kitchen cabinet opening; a division plate attached to an area between the lower side parts of the housing and dividing the interior of the housing into upper and lower spaces; and multiple coils supported by multiple support means attached to the division plate, provided between the upper side parts, and heating the heated object.

Description

  The present invention relates to a built-in heating cooker.

  Conventionally, in consideration of ease of mounting, the size of the mounting opening hole of the system kitchen that accommodates a cooking device such as an IH cooking heater has been determined in advance (in Japan, the size of the mounting opening hole is about 560 mm). As a result, the size of the casing of the conventional built-in heating cooker is determined, so the size and layout of the heating coil accommodated in the casing are also limited. For this reason, it is difficult to mount heating coils with large diameters, and since the spacing between the heating coils is narrow, cooking with multiple pans on the top plate has the problem of touching other pans and impairing usability. It was.

  In order to solve this problem, a housing portion that houses the housing in the opening hole of the kitchen top plate of the kitchen device, a flange that extends from the housing portion to the outer peripheral side, and is placed on the cabinet top plate, A cooking device is proposed in which a part or all of the heating coil is accommodated between the flange and the top plate (see, for example, Patent Document 1).

JP 2010-272269 A (Claim 1, FIG. 1)

  However, in a heating cooker that accommodates part or all of the heating coil between the conventional top plate and the flange (corresponding to the flat portion of the present invention), the height dimension between the top plate and the flat portion is large. Then, there was a problem that the heating cooker protruded greatly from the upper surface of the kitchen top plate and a step was formed, resulting in poor usability and cleanability. In addition, if the dimension between the top plate and the flat portion is reduced to suppress the step, the air passage for passing cooling air to cool the heating coil below the heat-resistant temperature during high-frequency heating also becomes narrower, There was a problem of increased resistance. When the air passage becomes narrower, the space for forming the air passage for supplying the cooling air to the upper and lower surfaces of the heating coil also becomes narrow, so the driving load of the cooling fan that generates the cooling air increases, and the rotation speed increases and during operation There was a problem that led to an increase in noise.

  The present invention has been made to solve the above problems, and in a built-in heating cooker, a space for cooling the heating coil without increasing the height dimension between the top plate and the flat portion. It aims at securing.

  The cooker according to the present invention is a built-in type cooker that is dropped into the opening of the kitchen cabinet through the opening hole of the kitchen top plate arranged on the upper surface of the kitchen cabinet, and is larger than the opening hole of the kitchen top plate. The width between the top plate, which has a width and is supported by the kitchen top plate, on which the object to be heated is placed, and the upper left and right side parts of the top fixed to the top plate is larger than the opening hole of the kitchen top plate. A case having a narrow width and a width wider than the kitchen cabinet opening, and a width between the left and right lower sides formed at the lower part of both upper sides is narrower than the kitchen cabinet opening. And a partition plate that is attached between both lower side portions of the housing and partitions the inside of the housing up and down, and a plurality of support means attached to the partition plate, And a plurality of coils for heating the object to be heated provided.

  The present invention can secure a space for cooling the heating coil without increasing the height dimension between the top plate and the flat portion in the built-in type cooking device by adopting the above configuration.

It is a perspective view which shows the whole heating cooker which concerns on Embodiment 1 of this invention. It is a schematic sectional drawing of the heating cooker which concerns on Embodiment 1 of this invention. It is a heating coil unit periphery part block diagram which concerns on Embodiment 1 of this invention. It is kitchen explanatory drawing explanatory drawing which concerns on Embodiment 1 of this invention. It is a comparison figure at the time of the kitchen incorporation which concerns on Embodiment 1 of this invention. It is a heating coil unit periphery part block diagram which concerns on Embodiment 2 of this invention.

Embodiment 1.
A heating cooker according to the first embodiment will be described with reference to FIGS. In the following description, front, back, top and bottom, left and right, and front and rear mean directions when the cooking device is viewed from the front side, that is, the side where the user performs the cooking operation. In the description, the horizontal direction is the width, the front-rear direction is the depth, and the vertical direction is the height. Further, in FIG. 1 and each of the drawings described later, the same reference numerals are the same or equivalent, and this is common throughout the entire specification.

First, the whole structure of the heating cooker 100 which concerns on this Embodiment 1 is demonstrated using FIG. 1 and FIG.
FIG. 1 is an exploded perspective view showing a state where the top plate 11 of the heating cooker 100 according to Embodiment 1 of the present invention is removed.
FIG. 2 is a schematic cross-sectional view of the heating cooker 100.
The casing 1 that forms the outer shell of the cooking device 100 has a box shape including a bottom 41 and a side that are open on the top, and each apparatus is accommodated in the casing 1.

Of the side parts of the housing 1, the left and right side parts are composed of a lower side part 42 and an upper side part 44. The inner width dimension between the left and right lower side parts 42 is substantially constant, and the inner width dimension between the left and right upper side parts 44 is also substantially constant. The inner width dimension is larger than the inner width dimension between the lower side portions 42. This is because the left and right upper side portions 44 of the housing 1 are spread outward with respect to the bottom portion 41, and the lower side portion 42 and the upper side portion 44 are connected by a flat portion 43. The flat portion 43 is a surface having no inclination in FIG. 2, but may be inclined depending on the positional relationship between the lower side portion 42 and the upper side portion 44, and a bending process or the like is performed to ensure strength. It may be composed of a plurality of plates. Further, the lower side portion 42, the flat portion 43, and the upper side portion 44 may be formed continuously by bending the casing 1, or another sheet metal may be connected by screwing or welding. good.
Moreover, the outside width dimension between the lower side parts 42 is 560 mm or less which is the standard width dimension of the opening part of a general kitchen cabinet. On the other hand, the outer width dimension between the upper side parts 44 is larger than 560 mm which is a standard width of a general kitchen cabinet opening, and smaller than a typical top plate width dimension (for example, 750 mm). Yes.

  Of the side portions of the housing 1, the depth dimension between the side portions in the front-rear direction is in the vicinity of the bottom portion 41 because the cooking chamber door has a shape protruding forward to use a roaster 9 (grill) described later. Is 460 mm or less which is the depth dimension of the opening of a general kitchen cabinet, and the largest depth dimension changes to about 500 mm.

  Although FIG. 1 shows a disassembled state for explanation, a top plate 11 is attached to the upper surface of the housing 1 by screws or the like as shown in FIG. On the top plate 11, heating ports 12a, 12b, and 12c (hereinafter, collectively referred to as the heating port 12) indicating positions where the object to be heated 10 such as a pan is placed on the user are formed by coating or printing. ing. In addition, a plurality of ventilation holes are formed at the rear of the top plate 11. The cooling fan 14 sucks air from outside the housing 1 and exhausts the outside of the housing 1 after cooling the inside of the housing 1. The cooling air passes through the exhaust port 16 to be used. FIG. 1 shows an example in which a vent hole is formed behind the top plate 11, but the present invention is not limited to this. For example, the casing 1 is formed without the vent hole behind the top plate 11. Vent holes may be formed on the front and back surfaces. In addition, in front of the top plate 11, there is an operation unit 5 for receiving an operation from the user.

  As shown in FIG. 2, on the lower side portion 42 below the flat portion 43 of the housing 1, a partition plate 30 that divides the space defined by the housing 1 and the top plate 11 into upper and lower portions is secured by screwing or fitting. Is provided. Note that the partition plate 30 does not necessarily have a flat shape, may be subjected to bending processing or the like for improving strength, and may be configured by a plurality of plates. Moreover, an opening may be formed in the partition plate 30, and air may enter and exit between the upper and lower sides of the partitioned space.

Since the partition plate 30 is provided on the lower side portion 42 below the flat portion 43 of the housing 1, the height dimension from the bottom surface of the top plate 11 to the top surface of the partition plate 30 is from the bottom surface of the top plate 11 to the flat portion 43. It is larger than the height dimension to the upper surface. In the first embodiment, the height dimension from the lower surface of the top plate 11 to the upper surface of the partition plate 30 is about 50 mm, and the height dimension from the lower surface of the top plate 11 to the upper surface of the flat portion 43 is about 40 mm.
Moreover, the height dimension from the lower surface of the top plate 11 to the lower surface of the flat portion 43 is formed to be equal to or less than the thickness of the general kitchen top plate 26 (usually around 30 to 40 mm).

  A roaster 9 having a cooking chamber door and a cooking chamber disposed on the rear side from the cooking chamber door is accommodated on the left front side of the bottom 41, and the cooking chamber door allows a heated object to be cooked in the cooking chamber to enter and exit the cooking chamber. Slide to open and close. In addition, it forms so that a clearance gap may be made between the outer wall of the roaster 9 and the bottom part of the housing | casing 1, and heat insulation by the air layer is performed by using this clearance gap as a heat insulation space.

  Further, three heating coil units 13a, 13b, and 13c (hereinafter sometimes collectively referred to as the heating coil unit 13) are provided on the partition plate 30 of the housing 1 either side by side or via a cooling duct that will be described later. ing. The heating coil unit 13 is used for heating an object to be heated placed on the top plate 11.

A control board 25 is disposed on the right side of the bottom 41, and a cooling fan 14 for cooling the control board 25 and the heating coil unit 13 is disposed behind the control board 25.
Each control board 25 includes an inverter 3 for causing the heating coil unit 13 to supply a high-frequency power, and a control unit 8 for controlling the heating coil 2 and the cooling fan 14. The inverter 3 is composed of a circuit formed by a heat generating portion such as a switching element and one or more capacitors connected to the circuit.

Next, the configuration around the heating coil unit 13 when the cooking device 100 is attached to the system kitchen will be described with reference to FIG.
FIG. 3 is a configuration diagram of the periphery of the heating coil unit 13. The arrows indicate the flow of cooling air that cools the heating coil 2.

  The heating cooker 100 according to the first embodiment is a built-in type attached to a system kitchen having a kitchen top plate 26 and a kitchen cabinet 27, and the heating cooker 100 is a housing 1 with respect to the kitchen top plate 26. It is supported by the lower surface of the top plate 11 attached to. Therefore, there is a gap between the opening of the kitchen top plate 26 and the upper side portion 44 of the housing 1. There is also a gap between the opening of the kitchen cabinet 27 and the lower side portion 42 of the housing 1. There is also a gap between the upper surface of the kitchen cabinet 27 and the flat portion 43. In addition, an underwater prevention member 29 such as a packing is provided on the lower surface of the top plate 11 so that water, spilled food or the like does not enter the gap. Note that the upper end of the upper side portion 44 may be bent into a flange shape and supported by the kitchen top plate 26.

Next, the cooling duct 21 will be described.
A cooling duct 21 is disposed on the partition plate 30. The cooling duct 21 is connected to a case (not shown) in which the control board 25 is housed, so that air after being blown from the cooling fan 14 and passing through the control board 25 case flows into the cooling duct 21. It has become. A plurality of jet opening holes 24 are formed on the upper surface of the cooling duct 21 (the surface facing the coil base 6). Accordingly, the air after passing through the case of the control board 25 from the cooling fan 14 is supplied to the inside of the cooling duct 21 and then ejected from the jet opening hole 24 toward the heating coil 2. The ejected air collides with the lower surface of the heating coil 2 and cools, and part of the air passes through the opening 23 provided in the coil base 6 and passes through the gap between the heating coils 2 to the upper surface of the heating coil 2. And the upper surface of the heating coil 2 is also cooled by flowing through the distance from the lower surface of the top plate 11.

Next, the heating coil unit 13 will be described.
Of the space defined by the housing 1, the top plate 11 and the partition plate 30, the housing 1, the top plate 11, the lower side portion 42 and the lower side portion 42 are partitioned by virtual lines extending vertically upward. The body coil housing part 31 houses the heating coil unit 13c and a part of the heating coil unit 13a and the heating coil unit 13b.
In addition, the top coil 11, the upper side portion 44, the flat portion 43, and the lower side portion 42 are expanded in a range wider than the expanded coil housing portion 32, that is, the opening portion of the kitchen cabinet 27, which is partitioned by a virtual line extending vertically upward. The heating coil unit 13a and a part of the heating coil unit 13b are accommodated.
The heating coil unit 13 includes a heating coil 2, a coil base 6, a support means 7, a magnetic shield 17, a ferrite 19, and a spacing member 22.

The support means 7 is provided on the partition plate 30 or the cooling duct 21 and supports the distance between the heating coil 2 and the top plate 11 substantially constant. The support means 7 supports the heating coil unit 13 so that the heating coil unit 13 can move in the vertical direction so as to relieve the pressure applied to the coil base 6 and the components provided on the coil base 6 even when vibration or impact occurs during transportation. Yes. The support means 7 is formed of an elastic body having a certain elastic force, and examples thereof include a compression spring. Although not shown in the first embodiment, the number of support means 7 to be installed is preferably three or four that can support the substantially circular coil base 6 in a balanced manner.
At this time, all of the support means 7 for supporting the coil base 6 is disposed above the partition plate 30, that is, toward the main body coil housing portion 31. Therefore, in the first embodiment, the support means 7 is not disposed in the enlarged coil housing portion 32.

  The coil base 6 holds the heating coil 2, and the coil base 6 and the heating coil 2 are bonded and fixed using silicon or the like. A supported portion 20 is formed on the call base 6 at a location facing the support means 7, and is in contact with the support means 7 at the supported portion 20. Further, the coil base 6 is provided with a ferrite 19 below the heating coil 2 to suppress the high-frequency magnetic field generated in the heating coil 2 from flowing below the heating coil unit 13 and The purpose is to concentrate on the object to be heated 10. In the first embodiment, as an installation example, a case in which the heating coil 2 is substantially orthogonal to the winding is illustrated.

  Further, a plurality of openings 23 are provided in the portion of the coil base 6 where the heating coil 2 and the ferrite 19 are not provided, so that the cooling air from the cooling duct 21 described above can be ventilated. Further, the coil base 6 has a structure with as little ventilation resistance as possible while forming a minimum rib (not shown) capable of withstanding the weight of the heating coil 2 to be held.

  In the heating coil 2, an eddy current is generated in the object to be heated 10 placed above the heating coil 2 due to the lines of magnetic force generated by the high-frequency current, and the object to be heated 10 generates heat. In the first embodiment, the heating coil unit 13 is arranged so that all of the three heating ports 12 can be induction-heated. However, for example, one of the heating ports 12 is supplied with commercial frequency AC power and the heater itself. Other heating methods such as a radiant heater that heats the article to be heated 10 by radiant heat may be employed by generating heat. In the first embodiment, the heating coil unit 13 is provided with one heating coil 2 for one heating port 12, but a plurality of heating coils 2 are opposed to one heating port 12. It is good also as a structure to arrange.

  The magnetic-shielding ring 17 surrounds the outer periphery of the heating coil 2 so that a high-frequency magnetic field that does not reach the object to be heated 10 when a high-frequency current flows does not leak outside the heating coil 2 and outside the housing 1. The coil base 6 is provided so as to surround the outer periphery of the heating coil 2. The magnetic-shielding ring 17 is formed by bending a metal member that is long in one direction into a circular shape and providing a joint portion that is crimped or welded, such as crimping an end portion, and is electrically conductive. Therefore, when a high frequency magnetic field is generated by the heating coil 2, an eddy current also flows through the magnetic shield ring 17 and is converted into heat by the internal resistance of the magnetic shield ring 17, thereby suppressing leakage magnetic flux. Examples of the material of the magnetic shielding ring 17 include aluminum and copper.

  A spacing member 22 is provided on the top surface of the coil base 6. In the state where the top plate 11 is provided, the spacing member 22 is pressed against the lower surface of the top plate 11. The coil base 6 and the heating coil 2 are arranged substantially parallel to the top plate 11 with a predetermined distance from the lower surface of the top plate 11. Thereby, the distance of the to-be-heated material 10 and the upper surface part of the heating coil 2 is maintained appropriately, and induction heating can be performed efficiently. Moreover, the space | interval of the heating coil 2 upper surface and the top plate 11 lower surface is maintained appropriately, and the cooling air which cools the heating coil 2 can pass between these. A part of the coil base 6 may be used as the material of the spacing member 22, but if the spacing member 22 is formed of an elastic material such as rubber which is a separate member from the coil base 6, the spacing member 22 and the top plate 11 Since the degree of adhesion is improved, it is possible to suppress the positional deviation of the heating coil unit 13 even when a strong impact is applied, such as when vibration is dropped. In the state where the top plate 11 is provided, the support means 7 is compressed by the top plate 11 and the cooling duct 21, and the reaction force causes the spacing member 22 on the coil base 6 to be pressed against the top plate 11. Become.

  The coil base 6 is provided with a temperature detecting means 4 so that the temperature of the object to be heated 10 can be measured via the top plate 11. In the first embodiment, a plurality of temperature detecting means 4 are provided for each coil base 6, and all the temperature detecting means 4 are arranged in the main body coil housing portion 31.

Next, the operation | movement which attaches the heating cooker 100 to a system kitchen is demonstrated using FIG.
FIG. 4 is an explanatory diagram of a method of attaching the heating cooker 100 to the system kitchen.
The cooking device 100 is attached to the system kitchen. The kitchen top plate 26 is made of, for example, scratches, dirt, heat-resistant stainless steel or artificial marble, and the kitchen cabinet 27 is made of wood or the like, and contains seasonings, cooking utensils, and the like. As shown in FIG. 4, the assembly method is as follows. First, the front of the casing 1 is hooked on the kitchen top plate 26 from above the opening hole 28 formed in the kitchen top plate 26 so as to be inserted obliquely, and the opening hole 28 is inserted. The top plate 11 is hooked and attached to the kitchen top plate 26 at the periphery of the plate.

Next, the difference at the time of attaching the heating cooker 100 which concerns on this Embodiment 1, and the conventional heating cooker 90 to a system kitchen is demonstrated using FIG.
FIG. 5 is a diagram showing a comparison when the cooking device 100 according to Embodiment 1 and the conventional cooking device 90 are attached.
In both cases, the operation at the time of attachment is the same as that shown in FIG. 3, but the heating cooker 100 according to the first embodiment makes the step between the top surface of the kitchen top plate 26 and the top plate 11 approximately the thickness of the top plate 11. In order to suppress, it is necessary to widen the width dimension of the opening hole 28 formed in the kitchen top plate 26 in advance in accordance with the width dimension on the outer side of the upper portion of the housing 1. Therefore, the conventional opening hole 28 is larger than the standard width of 560 mm which is the standard width of the general kitchen cabinet 27 in accordance with the width of the outside of the upper portion of the housing 1, and the width of the general top plate (for example, 750 mm). 4 is enlarged in a smaller range to form an opening hole 28a shown in FIG. As described above, the outside width dimension of the lower side portion 42 of the housing 1 is 560 mm or less which is a standard width of the general kitchen cabinet 27, so that the opening portion of the kitchen cabinet 27 is the same as the conventional cooking device 90. Fits in. On the other hand, the region where the heating coil 2 of the heating cooker 100 according to the first embodiment can be disposed is widened only by the flat portion 43 and the upper side portion 44 of the housing 1 as compared with the conventional cooking device 90, and FIG. The heating port 12 can be arranged from the frame C1 representing the range in which the conventional heating port 12 indicated by the dotted line can be arranged to the range of the frame C2 expanded in the left-right direction of the top plate 11.

  Here, in order to assemble the heating cooker 100, the opening 28a is enlarged to match the width of the enlarged coil housing part 32. However, since the top plate 11 has the same width as the conventional one, the periphery of the opening hole 28a is the top plate. 11, there is no apparent change in the assembled state, and there is no problem of inundation into the system kitchen by providing the infiltration prevention member 29 such as packing on the lower surface of the top plate 11. Therefore, even when the heating cooker 100 of the first embodiment is replaced with the conventional product, the enlarged portion of the opening hole 28a is covered with the top plate 11, so that there is no particular problem in the assembled state.

As described above, the heating cooker 100 according to the first embodiment spreads the side part in the left-right direction outward with respect to the bottom part 41, and sets the inner width dimension between the upper side parts 44 between the lower side parts 42. The lower side portion 42 and the upper side portion 44 are connected by the flat portion 43. Thereby, since the heating coil 2 can be arrange | positioned in the range wider than the opening part of the kitchen cabinet 27, the freedom degree of the magnitude | size of the heating port 12, and the position to arrange | position improves.
Thereby, for example, since the distance between the centers of the adjacent heating coils 2 can be increased, even when the objects to be heated 10 are placed on a plurality of top plates 11 and used at the same time, the distance between the objects to be heated 10 is not enough. Therefore, the collision between the objects to be heated 10 is suppressed and the usability is improved. Also, since the three heating ports 12 can be arranged side by side even with the diameter of the conventional heating coil 2, each heating port 12 can be used intuitively with the same operation method and specifications at a relatively short distance. The operability is improved.
In the first embodiment, as an example in which the size of the heating port 12 and the degree of freedom of the arrangement position are improved, the diameter and specifications of the heating coil 2 and the configuration of the operation unit 5 are all assumed to be the same. The diameter of the heating coil 2 may be partially changed, for example, by changing the diameter of the heating coil 2 in the middle, not all. Moreover, although the layout of the heating coil 2 is also arranged side by side with the center of the circle, it may be arranged so that it is an isosceles triangle or all triangles having different lengths when viewed from above as in the conventional case.

  Moreover, since it becomes possible to install a heating coil 2 that is larger than the conventional one, even when a pan having a large diameter is used as the article to be heated 10, a part of the pan bottom is locally heated with high heating power. Without heating, the entire pan bottom can be heated evenly.

Further, by suppressing the height dimension from the lower surface of the top plate 11 to the upper surface of the flat part 43 at least to the extent that the heating coil 2 can be accommodated, the height dimension from the lower surface of the top plate 11 to the lower surface of the flat part 43 is reduced. It formed so that it might become below the thickness (usually around 30-40 mm) of the board 26. As a result, the heating coil 2 is arranged in a wider area than the opening of the kitchen cabinet 27 only by enlarging the dimension of the opening hole of the kitchen top plate 26, and the top plate 11 upper surface and the kitchen top plate 26 upper surface are arranged. A step can be suppressed. Since there are few steps between the top plate 11 and the kitchen top plate 26, cooking can be performed slowly without being caught by the steps, workability can be improved, and design and cleanability can also be improved.
Moreover, it is not necessary to enlarge to the width dimension of the kitchen cabinet 27, Therefore The induction heating cooking appliance 100 can be attached, without shaving the storage space of the kitchen cabinet 27. FIG.
If the heating cooker 100 according to the first embodiment is attached to a system kitchen where the size of the opening hole of the kitchen top plate 26 is the same as that of the prior art, only the height dimension from the bottom surface of the top plate 11 to the top surface of the flat part 43 is used. Although the top surface of the top plate 11 is higher than the kitchen top plate 26, the height dimension from the bottom surface of the top plate 11 to the top surface of the flat portion 43 is small even in this case, so that the step between the top plate 11 and the kitchen top plate 26 is suppressed. Can do.

In addition, the cooking device 100 according to the first embodiment has a partition plate 30 that vertically divides a space defined by the housing 1 and the top plate 11 between the lower side portion 42 below the upper side portion 41. Is provided by screwing or fitting, so that the height dimension from the lower surface of the top plate 11 to the partition plate 30 is made larger than the height dimension from the lower surface of the top plate 11 to the upper surface of the flat portion 43. Thereby, the space which cools a heating coil can be ensured, without enlarging the height dimension between a top plate and a flat part.
The partition plate 30 is provided with a cooling duct 21 serving as an air path for supplying cooling air from the cooling fan 14 provided behind the control board 25 to the heating coil 2, so that the flat plate 43 lower surface from the lower surface of the top plate 11. A cooling air passage for cooling the heating coil 2 can be secured without increasing the height dimension up to. In addition, since the cooling air passage is secured, it becomes easy to supply the cooling air to the upper and lower surfaces of the heating coil 2, so that the cooling air can be generated and the driving load of the cooling fan 14 can be reduced. Driving noise can be suppressed.

  Further, since the support means 7 for supporting the coil base 6 is provided on the partition plate 30 or the cooling duct 21, even when the support means 7 having the same specification is provided by a coil compression spring or the like, each deflection at the time of assembly is provided. The amount can be made the same, and the heating coil 2 can be stably pressed against the top plate 11 in parallel. Therefore, the distance between the heating coil 2 and the object to be heated 10 can be maintained in parallel even during induction heating while suppressing the height dimension of the enlarged coil housing portion 32, and efficient heating with less temperature unevenness is possible. Can be done. Moreover, since the heating coil 2 can be supported in a state where it can move up and down to some extent, damage to the heating coil 2 and the top plate 11 due to vibration and dropping during product transportation can be suppressed.

  Moreover, the heating cooker 100 according to the first embodiment is supported on the lower surface of the top plate 11 attached to the housing 1 with respect to the kitchen top plate 26. Therefore, there is a gap between the opening of the kitchen top plate 26 and the upper side portion 44 of the housing 1. There is also a gap between the opening of the kitchen cabinet 27 and the lower side portion 42 of the housing 1. There is also a gap between the upper surface of the kitchen cabinet 27 and the flat portion 43. This gap serves as an air layer, and the flat part 43 and the upper side part of the casing 1 heated by heat transfer from the heating coil 2 or by the cooling air whose temperature has risen after cooling the heating coil 2 hits. The heat of 44 is prevented from being directly transmitted to the kitchen top plate 26 and the kitchen cabinet 27.

  Further, according to the first embodiment, since the temperature detecting means 4 is all housed in the main body coil housing portion 31 while part of the heating coil 2 is housed in the enlarged coil housing portion 32, the magnetic and windproofing is performed. Even a relatively large temperature detecting means 4 having a structure can secure a distance from the partition plate 30 and can suppress damage to the temperature detecting means 4 due to vibration or dropping during product transportation.

Embodiment 2.
FIG. 6 is a configuration diagram of the periphery of the heating coil unit 13 according to the second embodiment. In the second embodiment, differences from the first embodiment will be mainly described, and the same parts as those in the first embodiment will be denoted by the same reference numerals and the description thereof will be omitted.

  As shown in FIG. 6, the coil base 6 is supported by high repulsion support means 71 and low repulsion support means 72. Examples of the support means 71 and 72 include an elastic body such as a compression spring, and the low repulsion instruction means 72 is a spring wire so that the repulsion force when the main body is assembled with respect to the high repulsion instruction means 71 is small. The spring constant is reduced by reducing the diameter or increasing the number of turns of the spring. The high repulsion support means 71 is in contact with the supported portion 20 formed on the coil base 6 at the upper end, and the lower end is fixed on the partition plate 30 or the cooling duct 21. On the other hand, the low resilience support means 72 has an upper end in contact with the supported portion 20 and a lower end provided directly or indirectly on the flat portion 43. At this time, the high repulsion support means 71 and the low repulsion support means 72 have a certain elastic force so as to relieve the pressure applied to the coil base 6 and the components provided on the coil base 6 even when vibration or impact occurs during transportation. The heating coil unit 13 is supported to such an extent that it can move in the vertical direction.

  In the state where the top plate 11 is provided, the high repulsion support means 71 is compressed by the top plate 11 and the cooling duct 21. Further, the low repulsion support means 72 is compressed by the top plate 11 and the receiving surface spreading like a flange of the housing 1. The spacing member 22 on the coil base 6 is pressed against the top plate 11 by the reaction force of the high repulsion support means 71 and the low repulsion support means 72.

  The number of high repulsion support means 71 and low repulsion support means 72 that support the coil base 6 is preferably three or four that can support the substantially circular coil base 6 in a well-balanced manner. In the second embodiment, the number of the high repulsion support means 71 is larger than that of the low repulsion support means 72.

  As described above, according to the second embodiment, in addition to the effects obtained in the first embodiment, the high repulsion support means 71 is provided in the partition plate 30 or the cooling duct 21, and the low repulsion support means 72 is provided in the flat portion 43. Even if the height dimension from the lower surface of the top plate 11 to the partition plate 30 is larger than the height dimension from the lower surface of the top plate 11 to the upper surface of the flat portion 43, the coil base 6 is supported. Sometimes the repulsive force by the high repulsion support means 71 and the low repulsion support means 72 can be maintained equally. Therefore, even during induction heating, the distance between the heating coil 2 and the object to be heated 10 can be maintained in parallel, and efficient heating can be performed with little temperature unevenness.

  Further, the high repulsion support means 71 and the low repulsion support means 72 are arranged on the outer peripheral side of the coil base 6. Thereby, since the high repulsion support means 71 and the low repulsion support means 72 can be arrange | positioned in the position which avoided interference with the jet flow opening hole 24 of the cooling duct 21, the loss of cooling air is reduced. Further, since the cooling efficiency is increased, the cooling fan 14 can be operated with a smaller output, and noise is further reduced.

1: housing, 2: heating coil, 3: inverter, 4: temperature detection means, 5: operation part, 6: coil base, 7: support means, 8: control part, 9: roaster, 10: object to be heated, 11: Top plate, 12: Heating port, 13: Heating coil unit, 14: Cooling fan, 15: Inlet port, 16: Exhaust port, 17: Magnetic shield, 19: Ferrite, 20: Supported part, 21: Cooling duct , 22: spacing member, 23: opening, 24: jet opening hole, 25: control board, 26: kitchen top plate, 27: kitchen cabinet, 28: opening, 29: flooding prevention member, 30: partition plate, 31 : Main body coil housing part, 32: Enlarged coil housing part, 71: High repulsion support means, 72: Low repulsion support means, 90 100: Cooking device.

Claims (5)

In the built-in type heating cooker that is dropped and attached to the opening of the kitchen cabinet through the opening hole of the kitchen top plate arranged on the upper surface of the kitchen cabinet,
A top plate having a width larger than the opening hole of the kitchen top plate and supported by the kitchen top plate, on which an object to be heated is placed,
The width between the upper left and right upper side portions of which the upper end is fixed to the top plate is narrower than the opening hole of the kitchen top plate and wider than the kitchen cabinet opening portion, A housing having a width between the left and right lower side portions formed in the lower portion of the side portion, which is narrower than the kitchen cabinet opening,
A partition plate that is attached between the lower side portions of the housing and partitions the interior of the housing up and down;
A heating cooker comprising: a plurality of coils supported by a plurality of supporting means attached to the partition plate and provided between the upper side portions to heat the object to be heated. .   The heating cooker according to claim 1, further comprising: a cooling duct that is provided on the partition plate and blows out cooling air from a cooling fan provided in the housing in the direction of the heating coil.   A plurality of support means having an elastic body that supports the heating coil to the partition plate or the cooling duct so that the distance between the plurality of heating coils and the top plate is substantially constant. The cooking device according to claim 2.   A part of the support means is supported by the housing, and a spring constant of the elastic body of the support means supported by the housing is an elastic body of the support means supported by the partition plate or the cooling duct. The cooking device according to claim 3, wherein the heating constant is smaller than the spring constant.   It has the said kitchen top plate and the said kitchen cabinet, and the heating cooker in any one of Claims 1-4 was dropped and attached to the opening part of the said kitchen cabinet through the opening hole of the said kitchen top plate. A cooking device characterized by that.

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