JP4934294B2 - Electromagnetic cooker - Google Patents

Description

The present invention cools a device arranged inside a housing with external air sucked from an air inlet provided in the housing, and discharges the air after heat exchange from an air outlet provided in the housing to the outside. The present invention relates to an electromagnetic cooker .

  As an air-cooled device that cools various devices installed inside by air, for example, there is an electromagnetic cooker (for example, see Patent Document 1). The electromagnetic cooker disclosed in Patent Document 1 is located inside a casing in which a plate for placing an object to be heated is disposed at an upper portion, and is positioned below the plate to generate a high-frequency magnetic field and induce the object to the object to be heated. A heating coil for generating a current and a drive circuit for supplying a high-frequency current to the heating coil are provided. The casing is provided with an intake port formed of a plurality of small holes set to a size that does not allow a finger to enter, and an exhaust port is provided on the side surface. And when cooking with an electromagnetic cooker, by driving a cooling fan installed in the vicinity of the air intake in the housing, external air is taken in from the air intake, and internal devices such as a heating coil and a drive circuit These devices are cooled by exchanging heat with the air, and the hot air is discharged to the outside through the exhaust port.

By the way, with the intake of air from the air inlet, foreign matter such as dust and pests enters the inside of the housing, and this foreign matter adheres to the heating coil and the drive circuit, thereby deteriorating the cooling efficiency and the circuit. There is a risk of short circuit and failure. Therefore, a dust-proof filter having a mesh size smaller than that of the air intake port is attached to the outside of the air intake port so that foreign matter is not taken into the housing when air is sucked in from outside.
Japanese Patent No. 3246272

  In this way, while using the electromagnetic cooker, clean air from which foreign matter has been removed by the dust filter is taken into the housing from the intake port, while air after heat exchange from the exhaust port to the outside No foreign matter enters through the exhaust port. However, in a state where the cooling fan that is not cooking is stopped, air is not discharged from the exhaust port, so that there is a possibility that foreign matter may enter from the exhaust port. In addition, simply installing a dust-proof filter at the exhaust port will deteriorate the air flow efficiency at the exhaust port due to the dust-proof filter. There is a harmful effect that the temperature rises abnormally.

That is, the present invention has been proposed in order to suitably solve these problems inherent in the electromagnetic cooker according to the prior art, and a housing is provided by providing a filter at the inlet and the outlet. It is an object of the present invention to provide an electromagnetic cooker that can prevent the entry of foreign matter into the interior and can efficiently cool the equipment inside the housing.

In order to overcome the above-mentioned problems and achieve the intended purpose, an electromagnetic cooker according to the first aspect of the present invention provides:
By operating the cooling fan installed inside the housing, the equipment installed in the housing is cooled by the external air sucked from the intake port provided in the housing, and the air after heat exchange is sent to the housing In the electromagnetic cooker that discharges to the outside from the exhaust port provided,
The housing includes a box-shaped body that opens upward, and a top plate that is detachably disposed so as to cover an upper opening of the box-shaped body,
The intake port is opened at a portion biased to the front side of the bottom surface of the box-shaped body, and the exhaust port is opened at the back surface of the box-shaped body,
The top plate is provided with a rising portion integrally formed to project upward to the rear edge, it extends rearward to the upper end of the rising portion, the back and the box-like body when installed an electromagnetic cooker A regulating piece is provided that defines a gap through which air discharged from the exhaust port can flow between the wall surface located on the rear side of the box-shaped body ,
The mesh size of the exhaust filter disposed at the exhaust port is set to be larger than the mesh size of the intake filter disposed at the intake port.
According to the first aspect of the present invention, foreign matter can be prevented from entering not only from the air intake port but also from the air exhaust port, so that the device disposed inside the housing can be suitably protected. In addition, by setting the mesh size of the exhaust filter disposed at the exhaust port to be larger than the mesh size of the intake filter disposed at the intake port, air does not stay in the housing, Since the high-temperature air heat exchanged with the device can be discharged to the outside, abnormal temperature rise of the device can be avoided.

According to a second aspect of the present invention, in the electromagnetic cooker according to the first aspect, the exhaust filter is detachably disposed outside the casing.
According to the invention which concerns on Claim 2, cleaning and replacement | exchange of this filter can be easily implemented by arrange | positioning the exhaust filter on the outer side of a housing | casing so that attachment or detachment is possible.

According to a third aspect of the present invention, in the electromagnetic cooker according to the first or second aspect, as the device, a high-frequency magnetic field is generated, and an induction current is generated in an object to be heated placed on the upper surface of the casing. A heating coil unit and an inverter unit for supplying current to the heating coil unit are provided.
According to the invention of claim 3, since the air flow is generated inside the housing by the cooling fan, the heating coil unit and the inverter unit can be suitably cooled.

According to the electromagnetic cooker according to the present invention, it is possible to prevent foreign substances from entering not only from the air inlet but also from the air outlet. By setting the mesh size of the filter to be larger than the mesh size of the intake filter, it is possible to cool the device satisfactorily without air remaining in the housing.

Next, a preferred embodiment of the electromagnetic cooker according to the present invention will be described below with reference to the accompanying drawings .

  As shown in FIGS. 1 to 5, the electromagnetic cooker 10 according to the embodiment includes a box-like body 14 that is formed by combining a casing 12, which is a main body portion, with a thin plate material combined with a frame, The top plate 16 is disposed so as to cover the upper opening 14a of the box-like body 14 and has a top plate 18 on which an object to be heated such as a pan or a frying pan is placed. Further, on the front surface of the box-like body 14, a front panel 22 serving as an installation base for the operation means 34 to be described later is detachably attached to the box-like body 14. Inside the housing 12, a heating coil unit KU that is located below the top plate 18 and generates a high-frequency magnetic field to generate an induction current in an object to be heated placed on the top plate 18, and this heating Devices such as an inverter unit IU for supplying a current to the heating coil unit KU are disposed below the coil unit KU (see FIG. 4).

  The top plate 16 is made of, for example, a metal plate such as stainless steel and has substantially the same width as the box-like body 14, and its length in the front-rear direction is set to be larger than that of the box-like body 14. A rising portion 16a protruding upward is integrally formed. In the lower part of the rear surface of the rising portion 16a, the pair of engaging protrusions 26, 26 spaced apart from each other on the upper surface of the extending piece 24 extending rearward in the upper part of the back surface of the box-like body 14 are separated from each other in the left and right Thus, a pair of engagement pieces 20, 20 are disposed (see FIG. 1). Each engagement piece 20 is a substantially L-shaped member in a side view, and one surface extending in the vertical direction is fixed to the back surface of the rising portion 16a, and the other surface protruding rearward, A recessed groove 20a that opens rearward is provided. On the other hand, the engagement protrusion 26 of the embodiment employs a so-called screw collar that fits into the concave groove 20 a of the engagement piece 20. Further, the rising portion 16a has a regulating piece 16d extending rearward at the upper end thereof, and when the electromagnetic cooker 10 is installed, the regulating piece 16d comes into contact with the wall surface located on the rear side thereof, thereby the box-shaped body. A gap through which air exhausted from an exhaust port 12b, which will be described later, can flow is defined between the back surface of 14 and the wall surface. A plurality of exhaust holes 17 are provided in the upper portion of the rising portion 16a and the restricting piece 16d to discharge air discharged from the exhaust port 12b to the gap between the box-like body 14 and the wall surface to the outside.

  The top plate 16 is integrally formed with flange portions 16b, 16c and 16c extending downward at front and left and right edge portions. The front flange portion 16b located on the front side of the top plate 16 is curved so that an intermediate portion thereof swells forward, and the end thereof extends rearward by a predetermined length. A pair of fixed pieces 16e, 16e are formed at the end of the front flange portion 16b so as to be separated from each other in the left-right direction. The fixed pieces 16e, 16e extend substantially vertically and face the front surface of the box-like body 14. Further, the lateral flange portions 16c, 16c located on the left and right side edges of the top plate 16 extend substantially vertically, and when the top plate 16 is attached to the box-like body 14, the box-like body 14 is laterally viewed. It is designed to pinch. The top plate 16 is slid from the front to the rear, and the rear portion is fixed by correspondingly engaging the concave groove 20a of each engagement piece 20 and the engagement protrusion 26 of the box-like body 14. The screws 28 are inserted into the through holes (not shown) of the respective fixing pieces 16e brought into contact with the front surface of the box-like body 14, and screwed into the screw holes (not shown) provided on the front surface of the box-like body 14, respectively. By combining, the front part is fixed to the box-shaped body 14 (see FIG. 3). In other words, the top plate 16 is configured so that it can be easily assembled to the box-like body 14 only from the front side even when a wall surface or other equipment is in close contact with the side of the box-like body 14.

  In the top plate 16, a portion corresponding to the upper side of the heating coil unit KU is opened with a required size, and a stepped portion 16 f that is one step lower than the top surface of the top plate 16 is formed on the edge that defines the opening. (See FIG. 4). In the opening of the top plate 16, a top plate 18 made of glass or the like that has a small thermal expansion and transmits electromagnetic waves satisfactorily is disposed in a state where the peripheral portion is supported by the stepped portion 16f. The gap between the plate 18 is waterproofed with silicon or the like and bonded together. Further, at an appropriate position on the back surface of the stepped portion 16f, one surface of the substantially L-shaped support piece 30 is fixed by welding or using a joining member such as a screw or rivet in the side view, and the other surface is fixed. The box-like body 14 extends downward. Inside the box-like body 14, a stay 32 protruding upward is disposed at a position corresponding to the support piece 30. The stay 32 and the other surface of the support piece 30 are connected to each other by a joining member such as a screw, so that the support piece 30 and the stay 32 function as a reinforcing member that supports the load applied to the top plate 16 (FIG. 3). reference).

  The upper surface of the housing 12 is formed to be substantially flat in consideration of cleanability, but the upper surface of the top plate 18 is set to be slightly higher (about 0.5 mm to 1 mm) than the upper surface of the top plate 16, When the object to be heated is placed on the top plate 18, the object to be heated does not come into contact with the upper surface of the top plate 16. That is, direct heat conduction from the heated object to be heated to the top plate 16 can be prevented, and damage to the top surface of the top plate 16 can be avoided even when the object to be heated is moved.

  The front panel 22 is a substantially rectangular box formed by bending a thin plate material. Further, when the top panel 16 is disposed on the box-shaped body 14, the front panel 22 has an opening formed on the bottom surface of the front flange portion 16b protruding forward from the front surface of the box-shaped body 14 on the top panel 16. It is disposed on the front surface of the box-like body 14 with the upper part fitted. That is, the upper portion of the front panel 22 is supported by the top plate 16 without being fixed to the box-shaped body 14, and faces the internal space defined by the front flange portion 16b, so that spillage from the object to be heated or during cleaning is performed. For example, water and other foreign substances that have flowed down along the front flange portion 16b do not enter the front panel 22.

  The front panel 22 is provided with operating means 34 including a switch part 36 such as a push button, a display part 38 such as a liquid crystal panel and a display lamp, and a dial part 40 for adjusting heating output (see FIG. 2). The electromagnetic cooking device 10 can perform necessary control such as heating or stopping and temperature adjustment by appropriately operating the operating means 34. The dial portion 40 is disposed on the rear side of the knob member 42 fitted in a circular mounting hole 22 a opened on the front surface of the front panel 22, and is predetermined according to the rotation of the knob member 42. And a variable volume 44 for sending the signal (see FIG. 4). The knob member 42 is a circular member, and the front portion exposed to the front side of the front panel 22 is formed in a shape that is easy to be gripped by the user, and the rear portion is a hole portion 42a that opens rearward. Will be established. The variable volume 44 is provided with a shaft portion 44a extending forward, and the shaft portion 44a is fitted into the hole portion 42a of the knob member 42 via a spacer 46 so that the knob member 42 and the variable volume 44 are connected. Is done. Further, the rear surface of the knob 42 is integrally formed with a rib 42b extending rearward over the entire circumference of the portion located radially inward from the peripheral edge of the knob 42, The diameter of the rib 42b is set to be approximately the same as the diameter of the mounting hole 22a.

  The knob 42 is inserted into the mounting hole 22a from the front side of the front panel 22, and the outer peripheral edge of the rib 42b contacts the edge of the front panel 22 that defines the mounting hole 22a, and is radially outward from the rib 42b. The edge located at abuts against the front surface of the front panel 22, and the backward movement is restricted. A donut-shaped ring member 48 is attached to a portion of the rib 42b facing the inside of the front panel 22, and water or the like entering the inside of the front panel 22 through the gap between the knob member 42 and the attachment hole 22a is picked. It is configured to prevent traveling back along the member 42. Further, when the ring member 48 abuts against the inner surface of the front panel 22, the forward movement of the knob member 42 is restricted. Here, the ring member 48 may be made of a material having elasticity such as rubber and may function as a wall that prevents transmission of water or the like to the variable volume 44 side when attached to the rib 42b. An O-ring is preferably employed. As described above, the rib 42b is provided in the vicinity of the periphery of the knob member 42, and the ring member 48 is attached to the rib 42b, so that the variable volume 44 that is an electrical component disposed on the rear side of the knob member 42 is wetted. It is avoiding. In the operation means 34, the switch unit 36 and the display unit 38 are laminated integrally with the front surface of the front panel 22 with a thin film of resin or the like, so that a gap between the switch unit 36 and the front panel 22 is filled. Water and the like are prevented from entering the inside.

  In the casing 12, an intake port 12 a is opened at a portion biased to the front side of the bottom surface of the box-shaped body 14, and an exhaust port 12 b is opened at a portion biased to the upper side of the back surface of the box-shaped body 14. (See Figure 4). The intake port 12a and the exhaust port 12b are provided at positions separated from each other in the housing 12, and are set so that the air flow path in the housing 12 is lengthened and the air flow is not short-circuited. A cooling fan 50 is installed on the front side of the heating coil unit KU and the inverter unit IU. In the housing 12, the air taken in from the intake port 12a is brought into contact with the heating coil unit KU and the inverter unit IU when the cooling fan 50 is driven, and then the air after heat exchange is exhausted to the exhaust port 12b. An air flow path through which air flows so as to be discharged from is formed.

  An intake filter 52 for preventing foreign matter such as dust and insects from entering the intake port 12a is disposed so as to cover the intake port 12a. Similarly, the exhaust filter 54 is provided at the exhaust port 12b. It arrange | positions so that the opening | mouth 12b may be covered. The intake filter 52 and the exhaust filter 54 are obtained by disposing a capturing body having a predetermined mesh size such as a net or nonwoven fabric between substantially rectangular frames made of resin, metal, or the like. The mesh size of the filter 54 is set to be larger (coarse) than the mesh size of the intake filter 52. Further, the mesh size of the exhaust filter 54 is set to a size that is smaller than the size of a foreign substance expected to enter from the exhaust port 12b and does not hinder the discharge of air from the exhaust port 12b. Here, the mesh size of both the filters 52 and 54 is the size of the air gap that becomes the flow passage of the filters 52 and 54, and the size may be uniform or non-uniform in a mesh shape. In the case of non-uniformity, the largest one in the gap is set to a size smaller than the size of the foreign material expected to enter from the exhaust port 12b.

  The intake filter 52 and the exhaust filter 54 are detachably supported by hook-shaped holding pieces 56, 56 at the left and right ends of the frame (see FIG. 1 or FIG. 2). The pair of holding pieces 56 and 56 that support the intake filter 52 are provided to extend in the front-rear direction at positions close to the left and right of the intake port 12a on the bottom surface of the casing 12 that defines the intake port 12a. . The intake filter 52 is inserted into a space formed by the holding piece 56 and the bottom surface of the housing 12 at each side edge, and is held slidable in the front-rear direction. On the other hand, the pair of holding pieces 56 and 56 that support the exhaust filter 54 extend in the vertical direction at positions near the left and right of the exhaust port 12b on the back surface of the casing 12 that defines the exhaust port 12b. Respectively. The exhaust filter 54 is inserted into a space formed by the holding piece 56 and the rear surface of the housing 12 at each side edge, and is held slidable in the vertical direction.

  The heating coil unit KU and the inverter unit IU are surrounded by a substantially U-shaped frame member 58 in a plan view in which the front and left and right sides are opened rearward (see FIG. 5). The frame member 58 is provided with air guides 60, 60 extending rearward from the rear edges of the left and right side plates, and a gap between the rear edge of the frame member 58 and the back of the box-like body 14 is provided. It is blocking. An exhaust port 12b is positioned between the left and right air guides 60,60. Further, the frame member 58 and the air guides 60, 60 extend in the vertical direction inside the housing 12, and the upper ends thereof are the back surfaces of the top plate 16 and the top plate 18 via a packing member 62 described later. Abut. A cooling fan 50 that generates an air flow from the front side to the rear side of the housing 12 is disposed on the front surface of the frame member 58, and an air circulation port 58 a is formed in the frame member 58 according to the cooling fan 50. It has been established. That is, in the housing 12, the first air flow path 64 extending from the intake port 12 a to the cooling fan 50, and the cooling fan 50 surrounded by the frame member 58 and the two air guides 60, 60 are connected to the exhaust port 12 b. And a second air flow passage 66 is defined.

  The packing material 62 is a member having elasticity and cushioning, and a silicon sponge tape, a rubber molded product, or the like is adopted, and is joined to the frame material 58 and the upper ends of the air guides 60 and 60 by an adhesive. Further, the packing material 62 is set such that the vertical height thereof is larger than the gap formed between the upper end of the frame material 58 or the air guides 60 and 60 and the back surface of the top plate 16 or the top plate 18. When the top plate 16 is attached to the box-shaped body 14, the packing material 62 is compressed by the top plate 16 or the top plate 18, and the upper end of the frame member 58 or the air guides 60, 60 and the top plate 16 or the top plate are compressed. The gap formed by the back surface of 18 is closed.

  The electromagnetic cooker 10 is provided with leg portions 68 at positions near the corners on the bottom surface of the housing 12, and the leg portions 68 separate the bottom surface of the housing 12 from the installation surface by a necessary distance. Thus, the air can be circulated through the intake port 12a. The leg portion 68 of the embodiment is a hexagon bolt that is screwed into a fixing portion 70 that is a nut fixed to the inner bottom surface of the box-like body 14, and changes the protruding dimension from the fixing portion 70 by rotating in the circumferential direction. Thus, the horizontal and height of the housing 12 can be adjusted as appropriate. Further, a spacer 72 is inserted between the outer bottom surface of the housing 12 and the leg portion 68, and the protrusion dimension of the leg portion 68 cannot be shortened below the thickness of the spacer 72. Here, the minimum separation distance (about 30 mm in the embodiment) between the bottom surface of the housing 12 and the installation surface is defined by the thickness of the head of the hexagon bolt that forms the leg portion 68 and the spacer 72, and the minimum separation distance. In this case, the thickness is set so as to secure a distance that allows sufficient intake of air from the air inlet 12a. As the spacer 72 of the embodiment, a nut is adopted, and the fixing portion 70 and the spacer 72 function as a double nut that further tightens the bottom surface by screwing the leg portion 68 to the fixing portion 70 via the spacer 72. In addition, the leg 68 can be prevented from loosening. The separation distance between the bottom surface of the housing 12 and the installation surface is appropriately set in consideration of various conditions such as the equipment disposed inside the housing 12 and the ability of the cooling fan 50 and the amount of air flowing through the air inlet 12a. The As described above, by using general-purpose standard products for the leg portion 68, the fixing portion 70, and the spacer 72, substitution is easy and the cost can be reduced.

  A shielding plate 74 is provided at the lower back of the box-like body 14 to restrict the air exhausted from the exhaust port 12b from going around to the front side through the space between the bottom surface of the housing 12 and the installation surface. . The blocking plate 74 is a rectangular plate set substantially the same as the width of the box-shaped body 14, and has elongated holes 74a and 74a that are spaced apart in the left-right direction and extend in the up-down direction (see FIG. 1). Then, the fixing plate 76 inserted through the long hole 74 a is screwed into a screw hole (not shown) provided on the back surface of the box-like body 14, so that the shielding plate 74 is vertically moved with respect to the box-like body 14. It is slidably arranged. Further, the shielding plate 74 is always in a state of projecting downward from the bottom surface of the box-like body 14, and the projecting dimension is set so as not to be smaller than the minimum separation distance between the bottom surface of the housing 12 and the installation surface. Is done. That is, because the protrusion dimension of the leg portion 68 cannot be made smaller than the protrusion dimension of the shielding plate 74, there is always a space required for air flow to the intake port 12a between the bottom surface of the housing 12 and the installation surface. It is formed.

(Effects of Example)
Next, the operation of the electromagnetic cooking device according to the embodiment will be described. The cooling fan 50 is driven at the same time as the operation means 34 is operated to start heating the object to be heated placed on the top plate 18. External air is taken into the housing 12 from the intake port 12 a and arrives at the second air flow passage 66 from the first air flow passage 64. Here, since the intake air filter 52 is provided at the intake port 12a, foreign matter can be prevented from entering the intake port 12a due to intake air. In addition, due to the spacers 72 and the shielding plates 74 provided on the legs 68, the spacing between the bottom surface of the casing 12 and the installation surface of the electromagnetic cooking device 10 is such that the equipment such as the heating coil unit KU and the inverter unit IU is cooled. Therefore, the air quantity required for the device is secured to such a size that it can circulate, so that sufficient air cooling of the device can be achieved.

  Further, in the second air flow passage 66, the air (hot air) heated by heat exchange with the heating coil unit KU and the inverter unit IU is guided by the frame member 58 and the air guides 60, 60 to be exhausted. It is discharged from 12b. Here, since the high-temperature air flows through the second air flow passage 66 defined in the frame member 58, the air guides 60, 60 and the packing material 62 and is discharged from the exhaust port 12b, the high-temperature air is cooled by the cooling fan. 50 can avoid the short path taken into the first air flow passage 64 again, and the required cooling efficiency can be maintained. Moreover, since a shielding plate 74 is disposed on the rear surface of the housing 12 so as to close the space between the bottom surface and the installation surface of the housing 12, high-temperature air discharged from the exhaust port 12b is taken from the intake port 12a. It is not included. Thus, the electromagnetic cooker 10 can achieve the required cooling efficiency without taking in the discharged high-temperature air again, even in an environment where walls and other devices are installed in close contact with the side and rear. Can be maintained. Further, by interposing the packing material 62 between the frame member 58 and the air guides 60, 60 and the top plate 16 and the top plate 18, the frame member 58, the air guides 60, 60, the heating coil unit KU and the inverter unit. Processing errors and mounting errors of equipment such as IU can be allowed to some extent. In addition, when the object to be heated is placed on the top plate 18, the packing material 62 also functions as a buffer material, so that the load on the top plate 18 can be reduced. In addition, since the stepped portion 16 f is supported by the support piece 30 and the stay 32, the top plate 16 can suppress bending of the top plate 16 when the object to be heated is placed on the top plate 18. Furthermore, since the support piece 30 is fixed to the back surface of the stepped portion 16f, a screw or welding weld mark or the like is covered with the top plate 18 and does not appear on the design surface of the top plate 16, so that the processing of the weld mark or the like is performed. The top plate 16 can be made substantially flat and the cleaning performance is not impaired.

  The casing 12 is also provided with an exhaust filter 54 at the exhaust port 12b, and foreign matter can enter from the exhaust port 12b even when the cooling fan 50 is stopped and the exhaust port 12b is not exhausted. Can be prevented. In other words, since foreign matter does not enter the inside of the housing 12, it is possible to prevent a failure due to a decrease in cooling efficiency or a short circuit due to the foreign matter adhering to the device. In addition, by setting the mesh size of the exhaust filter 54 to be larger than the mesh size of the intake filter 52, high-temperature air that has been heat-exchanged with the device can be externally exchanged without air remaining inside the housing 12. Therefore, the cooling efficiency is good and the abnormal temperature rise of the equipment can be avoided.

  The top plate 16 is configured so that it can be attached to and detached from the box-like body 14 only from the front side. Therefore, the assembling workability at the manufacturing site is high, and a wall and other devices are in close contact with the side. Even if it is, since the top plate 16 can be removed from the box-shaped body 14 without moving the electromagnetic cooker 10, the maintenance after installation of the electromagnetic cooker 10 can be performed easily. Since the front panel 22 is fitted to the front flange portion 16b of the top plate 16 and its upper portion faces the internal space of the front flange portion 16b, fixing means such as screws for fixing the upper portion of the front panel 22 can be omitted. , Can reduce the cost. In addition, water or other foreign matter does not enter from the joint between the top panel 16 and the front panel 22, and failure due to water splashing on the electrical components of the operating means disposed inside the front panel 22 can be avoided.

In addition, in this invention, it is not restricted to the electromagnetic cooker demonstrated in the Example mentioned above, A various change is possible .
(1 ) In the embodiment, the case of the so-called one-piece opening in which there is one heating part for heating the object to be heated has been described. The configuration described above can be applied.
( 2 ) The electromagnetic cooker according to the embodiment has been described with respect to a so-called counter type that is placed on a counter, but may be a floor-mounted low range type or a table type.
( 3 ) When a heating portion having a plurality of openings is provided, a support piece that reinforces the top plate is fixed between the adjacent stepped portions, and the support piece is supported by a stay so that It is possible to suitably reinforce the space between the matching heating parts.

It is a schematic perspective view which shows the electromagnetic cooker which concerns on the suitable Example of this invention from the back side. It is a schematic perspective view which shows the electromagnetic cooker of an Example from the bottom face side. It is the sectional view on the AA line of FIG. It is the BB sectional view taken on the line of FIG. In the electromagnetic cooker of an Example, it is a schematic perspective view which removes a top plate and shows the inside of a housing | casing.

Explanation of symbols

12 Housing, 12a Inlet, 12b Exhaust, 14 Box, 14a Upper opening,
16 Top plate, 16a Rising part, 16b Restriction piece, 52 Intake filter,
54 Exhaust filter, KU heating coil unit (equipment),
IU inverter unit (equipment )

Claims (3)

By operating the cooling fan (50) disposed inside the housing (12), the external air sucked from the air inlet (12a) provided in the housing (12) is arranged in the housing (12). In the electromagnetic cooker that cools the installed equipment (KU, IU) and exhausts the air after heat exchange from the exhaust port (12b) provided in the housing (12),
The housing (12) includes a box-like body (14) that opens upward, and a top plate (16) that is detachably disposed so as to cover the upper opening (14a) of the box-like body (14). With
The intake port (12a) is opened at a portion biased to the front side of the bottom surface of the box-shaped body (14), and the exhaust port (12b) is opened at the back surface of the box-shaped body (14).
The top plate (16) includes a rising portion (16a) integrally formed so as to protrude upward at the rear edge portion, and extends rearward at the upper end of the rising portion (16a), and an electromagnetic cooker is installed. In this case, a regulating piece that defines a gap through which air exhausted from the exhaust port (12b) can flow between the back surface of the box-shaped body (14) and the wall surface located on the rear side of the box-shaped body (14) ( 16d)
The mesh size of the exhaust filter (54) disposed at the exhaust port (12b) is set to be larger than the mesh size of the intake filter (52) disposed at the intake port (12a). An electromagnetic cooker . The electromagnetic cooker according to claim 1, wherein the exhaust filter (54) is detachably disposed outside the casing (12). As the device, a heating coil unit (KU) that generates a high-frequency magnetic field and generates an induction current in a heated object placed on the upper surface of the housing (12), and supplies current to the heating coil unit (IU) The electromagnetic cooker of Claim 1 or 2 provided with the inverter unit (IU) to perform.

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