JP2010086842A - Electromagnetic heating cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electromagnetic heating cooker capable of using indoor air itself wherein steam and oily soot generated from a pan and a frying pan are not included in the intake air for cooling a control circuit of a body. <P>SOLUTION: In the electromagnetic heating cooker, a waterdrop and a splash do not directly enter an intake port 17 by preparing a cover plate 50 between an air vent 47 and the intake port 17, and insulation deterioration of a control block 10 and causes of a malfunction can be reduced by naturally evaporating the waterdrop entering the body 1. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an electromagnetic heating cooker used in general household or business use.

Conventionally, this type of electromagnetic heating cooker is configured to take in air from the rear upper surface right side of the main body and exhaust from the rear upper surface left side of the main body (see, for example, Patent Document 1).
JP 2006-222095 A

  However, in the conventional configuration, since the air is sucked from the back of the top surface of the main body, the steam or oil smoke from the pan or the frying pan is sucked together with the air during cooking, and the electromagnetic heating cooker using high voltage at high frequency. There was a problem of causing electrical failure and deterioration in the body.

  The present invention solves the above-described conventional problems, and electromagnetic air that can use indoor air itself that does not contain water vapor or smoke generated from a pan or frying pan as an intake air for cooling a control circuit in the main body. An object is to provide a cooking device.

  In order to solve the above-described conventional problems, an electromagnetic heating cooker according to the present invention includes a horizontal top plate and a vertical front surface, and a substantially rectangular storage hole provided in the top plate, and the same center line as the storage hole. A kitchen provided with a laterally long opening provided on the front surface with a center line, a front hanging part provided between the storage hole and the opening, and a top plate having a size larger than the storage hole on the top surface When the main body is stored in the storage hole in a horizontal shape formed between the top plate and the front portion in a horizontal direction formed between the top plate and the front portion, the front hanging portion of the kitchen is formed. A recessed portion to be accommodated, a grill portion provided in the main body and provided with a door on the front portion, a plurality of electromagnetic heating coils provided below the top plate in the main body, and a control for supplying electric power to the electromagnetic heating coil Front of the circuit and the control circuit in the main body A plurality of ventilation holes provided on the upper surface of the front portion, and the ventilation holes and the intake port of the ventilation device. The liquid blocking member is provided between them.

  As a result, it is possible to prevent water vapor and smoke from entering and attaching to the high-frequency and high-voltage control circuit in the main body and causing electrical failure or deterioration.

Moreover, the electromagnetic heating cooker of this invention is set as the structure of the liquid blocking member which has an area which shields the space containing the path | route where a liquid jumps directly from the arbitrary ventilation hole to the inlet port of an air blower.
As a result, in order to directly cool the control circuit, when inhaling indoor air from the vent hole, water droplets and splashes are sucked together and shielded by the liquid blocking member without being attached to the control circuit by the blower as it is. Can do.

  In the electromagnetic heating cooker according to the present invention, the liquid blocking member is provided with an accumulation groove at the bottom, and the drainage portion of the accumulation groove is outside the space including the path through which the liquid directly jumps from an arbitrary vent hole to the air inlet of the blower. It was provided for the person.

As a result, the liquid that has entered the main body from the vent hole is not directly blown to the control circuit together with the intake air of the blower and attached to the control circuit. It is accumulated and further dropped into the main body after being moved to a position where it is not sucked together with the air sucked into the air blower in the main body, so that water drops or the like can be prevented from adhering to the control circuit.

  In addition, the electromagnetic heating cooker of the present invention includes a front decorative frame that closes a gap between the front hanging portion and the concave portion, the front decorative frame is provided with a plurality of through holes, and the intake air by the blower passes through the through holes. The air intake is made after passing through the ventilation holes.

  As a result, the gap between the front sag and the front portion can be hidden, the aesthetics can be improved, the intake area can be secured, and the through hole can also serve as a filter.

  In addition, the electromagnetic heating cooker of the present invention has a front decoration frame that closes the gap between the front hanging part and the recessed part, is positioned in front of the plurality of ventilation holes, and has a U-shaped cross section that is long in the horizontal direction on the left and right. And a plurality of through holes are provided in the front plane portion of the front decorative frame, and intake air from the blower is sucked from the through holes through the vent holes.

  Thereby, by making both the flat part of the front decoration frame and the front part of the main body flat, the front of the main body can be configured with a flat surface, and the aesthetics can be improved.

  The electromagnetic cooking device of the present invention has a configuration in which the area of one through hole is a relatively small hole shape at a position close to the center line of the blower, and a relatively large hole shape at a position far from the center line. It is a thing.

  As a result, when the holes having the same shape are arranged, the wind speed tends to be relatively high at a position close to the center line of the blower, and the air volume tends to increase. Although it tends to decrease, the air volume in the vicinity of the center line is reduced by reducing the area of one through hole in the vicinity of the center line, and the area of one through hole is relatively in a position far from the center line. Since it is large, the air volume increases. Accordingly, the entire through hole can have a uniform air volume regardless of the position of the blower.

  Furthermore, the electromagnetic heating cooker of the present invention has a configuration in which a plurality of ventilation holes are provided on the upper surface of the front portion excluding the range above the grill portion.

  As a result, the air blower does not inhale the hot air near the grill, and relatively low-temperature air can be inhaled.

  The electromagnetic heating cooker of the present invention has a configuration in which a plurality of ventilation holes provided on the upper surface of the front portion and a liquid blocking member are provided between the ventilation holes and the air inlet of the air blower, so that air is sucked from the front of the main body. The air blower does not directly inhale even if water droplets or splashes are inhaled when inhaling water vapor or oil smoke from a cooking pan or frying pan into the main unit, and when inhaling from the vent hole, so it is high at high frequency. It is possible to prevent water droplets and the like from adhering to the control circuit using the voltage and to make a highly reliable configuration.

According to a first aspect of the present invention, there is provided a substantially rectangular storage hole provided in the top plate with a horizontal top plate and a vertical front surface, and a horizontally long opening provided in the front surface with the same center line as the center line of the storage hole. And a kitchen provided with a front hanging part provided between the storage hole and the opening, a main body provided with a top plate having a size larger than the storage hole on the top surface, a front part convex to the front of the main body, When the main body is stored in the storage hole in a shape recessed between the top plate and the front portion in the horizontal direction in the direction of the rear of the main body, a recess for storing the front hanging portion of the kitchen is provided in the main body. A grille part having a door in the part, a plurality of electromagnetic heating coils provided below the top plate in the main body, a control circuit for supplying electric power to the electromagnetic heating coil, and a front part side from the control circuit in the main body The blower arranged in the It is composed of an operation unit that operates the control circuit, and a plurality of ventilation holes provided on the upper surface of the front part, and a configuration including a liquid blocking member between the ventilation holes and the air inlet of the blower, Prevents steam and oily smoke from entering and adhering to the high-frequency, high-voltage control circuit inside the main unit without inhaling water vapor or oily smoke from cooking pans and pans during cooking. Can do.

  According to the second aspect of the invention, in particular, since the liquid blocking member has an area for shielding a space including a path in which liquid directly jumps from an arbitrary vent hole to the air intake port of the blower, splashing from the vent hole is prevented. If the air blows in the direction to enter the air blower, it hits the liquid blocking member located between the air vent and the air blower and does not reach the air blower. When the air is taken in, water droplets and splashes are sucked together, and can be shielded by the liquid blocking member without being directly attached to the control circuit by the blower.

  According to a third aspect of the present invention, in particular, the liquid blocking member is provided with an accumulation groove at the bottom, and the drainage portion of the accumulation groove is provided outside a space including a path for liquid to directly jump from an arbitrary vent hole to the air inlet of the blower. With this configuration, when the liquid collected in the accumulation groove of the liquid blocking member reaches both ends of the groove, it drops into the main body, but at this position, it is out of the flow of wind from the vent hole toward the blower. The liquid will drip into the main body without going to the blower, and the liquid that has entered the main body from the vent hole will not be blown directly to the control circuit along with the intake air of the blower and will not adhere to the control circuit. In this case, the liquid that has entered through the vent hole is accumulated in the accumulation groove, and then moved to a position where it is not sucked together with the air sucked into the blower in the main body, and then dropped into the main body. Is not attached It can be in the configuration.

  In particular, the fourth aspect of the present invention includes a front decorative frame that closes a gap between the front hanging portion and the recessed portion, and a plurality of through holes are provided in the front decorative frame. By adopting an air intake configuration, the air required by the air blower can be supplied to the air blower from the room through the through hole and the vent hole, and the front decoration frame becomes a blindfold between the front hanging portion and the recess, which is aesthetically pleasing. As well as improving the air intake area, the through hole can also serve as a filter.

  In particular, the fifth invention is provided with a front decorative frame that closes the gap between the front hanging portion and the concave portion, is located in front of the plurality of ventilation holes, and has a U-shaped cross section that is long in the left and right horizontal directions. By providing a plurality of through-holes in the front plane portion of the decorative frame, and intake air from the blower device is sucked from the through-holes through the vent hole, the plane of the front decorative frame is formed between the front portion and the front hanging portion. The parts are connected to each other, so that one plane is aesthetically pleasing. By making both the plane part of the front decoration frame and the front part of the main body flat, the front of the main body can be configured with a flat surface, and the aesthetics are improved. Can improve.

  In the sixth aspect of the invention, in particular, the area of one through hole is configured to be a relatively small hole shape at a position close to the center line of the blower, and a relatively large hole shape at a position far from the center line. When the holes having the same shape are arranged, the wind speed tends to be relatively high at a position close to the center line of the blower, and the air volume tends to increase. At a position far from the center line, the wind speed is relatively slow and therefore the air volume decreases. Although there is a tendency, the air volume near the center line is reduced by making the area of one through hole relatively small near the center line, and the area of one through hole is relatively large at a position far from the center line. The air volume increases. Therefore, the entire through hole can have a uniform air volume regardless of the position of the blower, that is, a uniform wind speed.

According to the seventh aspect of the invention, in particular, a plurality of ventilation holes are provided on the upper surface of the front portion excluding the range above the grill portion, so that air heated by the grill exists in the vicinity of the grill. By providing a ventilation hole at a position relatively far from the grill without taking in air from the vicinity where it exists, air at a relatively low temperature is drawn in, and the blower does not draw in hot air near the grill, so it is at a relatively low temperature. The air can efficiently cool the control circuit and the electromagnetic heating coil.

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

(Embodiment 1)
FIG. 1 is a cross-sectional view of an electromagnetic heating cooker according to the first embodiment of the present invention. FIG. 2 is a perspective view of a storage hole and an opening of the kitchen for storing the electromagnetic heating cooker according to the first embodiment of the present invention. FIG. 3 is a diagram in which the electromagnetic heating cooker body according to the first embodiment of the present invention is housed in a kitchen housing. FIG. 4 is a perspective view of the electromagnetic heating cooker according to the first embodiment of the present invention. FIG. 5 is a perspective view of components of the electromagnetic heating cooker according to the first embodiment of the present invention. FIG. 6 is a diagram showing the dimensional relationship of the components of the electromagnetic heating cooker according to the first embodiment of the present invention.

  In FIG. 1, the outline of the structure of the main body 1 will be described. A back case 3 formed of a steel plate having a rear outer shell and an inclined portion formed in a lower portion is fastened to an outer case 2 formed of a steel plate formed of a lower surface and left and right walls.

  In the main body 1, the right control board 4, the left control board 5, and the rear control board 6 are arranged in the lower right, the right control board 4 is arranged in the first layer, the left control board 5 is arranged in the second layer, and the third layer. A rear control board 6 is arranged. Each control board is accommodated in a lower case 7, a middle case 8, and an upper case 9, respectively. The right control board 4, the left control board 5, the rear control board 6, the lower case 7, the middle case 8, and the upper case 9 form a control block 10 that is a control circuit.

  The control block 10 has a substantially rectangular parallelepiped shape and is located at the lower right of the main body 1. In front of the control block 10, a cooling fan 11 forming a blower is composed of a motor 12, a fan 13, and a substantially rectangular fan case 14, and the motor 12 shaft is placed horizontally. In the cooling fan 11, the motor 12 is located on the control block 10 side and is accommodated in a concave shape 15 provided in a part of the control block 10. The fan 13 is housed in the fan case 14 in a horizontally placed state, and the fan shaft 16 is directly connected to the motor 12. The fan 13 has a shape based on a centrifugal fan or a turbo fan. As for the intake of the fan 13, a circular intake port 17 of the fan case 14 opens toward the front of the main body 1 opposite to the control block 10. The diameter of the air inlet 17 is about 50 mm. A plurality of air holes 18 are provided on the side of the fan case 14 opposite to the air inlet 17, that is, on the control block 10 side.

  The lower case 7, the middle case 8, and the upper case 9 of the control block 10 are passed through the air blow holes 18 of the cooling fan 11 to cool the right control circuit 4, the left control circuit 5, and the rear control circuit 6, respectively. For this purpose, a notch 19 is provided.

  The fan 13 rotates counterclockwise when viewed from the front of the main body 1. The fan 13 blows air sucked from the air inlet 17 of the fan case 14 through the outer periphery of the fan case 14 as the fan 13 is rotated by the motor 12, and blows air from the blow hole 18 toward the rear of the main body 1, that is, toward the control block 10. The maximum outer diameter of the fan 13 is the front side of the main body 1 of the outlet 20 of the fan 13 and is larger than the diameter of the fan 13 on the motor 12 side. Due to the small diameter on the motor 12 side, the direction of the air blown from the fan 13 is not a straight side but an oblique direction and is close to the fan shaft 16 direction.

  The operation unit 21 is located in front of the fan 13 and at the same time in front of the main body 1. When the operation part 21 pushes the front part 22 before the operation, the operation part 21 protrudes forward. The operation buttons and display section appear to tilt forward. When the operation unit 21 is not operated, the front unit 22 is pushed and stored in the operation unit storage unit 23 in the original main body 1.

  There are three heating coils in total, one main heating coil 24 is arranged above the main body 1 in the left-right direction, and the auxiliary heating coil 25 is arranged behind the center of the left and right main heating coils 24 on the main body 1 center line. Is done. The left and right main heating coils 24 and auxiliary heating coils 25 are combined to form an electromagnetic heating coil. The arrangement of the left and right main heating coils 24 and auxiliary heating coils 25 is located at the vertices of an isosceles triangle. The main heating coil 24 arranged on the right is electrically connected to the right control board 4. The left main heating coil 24 arranged on the left is connected to the left control board 5, and the auxiliary heating coil 25 is connected to the rear control board 6.

  A grill 26 is located at the lower left of the main body 1. In the grill 26, a sheathed heater 28 is vertically attached to a box-shaped case 27 formed of a steel plate. The food to be heated is placed on the net 29 between the sheathed heaters 28 and stored, and is cooked by the heat of the sheathed heater 28. A door 30 is provided on the front side of the main body 1 of the grill 26 so as to be slidable from the inside of the main body 1 to the outside of the main body 1 so as to be freely opened and closed.

  A front portion 31 of the main body 1 is formed by the operation portion 21 and the door 30 of the grill 26. The front portion 31 is preferred to have a flat and clean design.

  A top plate 32 is fixed to the top surface of the main body 1. The left-right direction of the top plate 32 is 60 mm larger than the left-right direction of the main body 1. 30 mm on one side. Further, it is about 20 mm larger than the rear end of the rear portion 33 of the main body 1 in the front-rear direction. In the front direction of the main body 1, it is the front end 34 of the top plate 32, and is located relatively behind the front portion 31. The front drooping portion 35 is a frame that is located in the front portion of the kitchen 36 and is configured in the left-right direction. While the front portion 31 extends to the front surface of the kitchen 36, the front hanging portion 35 of the kitchen 36 exists between the front portion 31 and the top plate 32, so the main body 1 needs to avoid the front hanging portion 35. There is. Since the concave portion 37 is provided between the top plate 32 and the front portion 31, the concave portion 37 avoids the front hanging portion 35.

  The kitchen 36 is provided with a front surface 39 perpendicular to the top plate 38 as a basic surface. In the kitchen 36, a storage hole 40 for storing the cooking device is provided in the top plate 38. On the front 39 side of the storage hole 40, an opening 41 is long in the front 39 so as to be laterally distributed according to a positional relationship in which the storage hole 40 is distributed to the left and right along the center line. The storage hole 40 of the top plate 38 communicates with the opening 41. When the main body 1 is stored in the kitchen 36, the front portion 31 closes the opening 41 and forms a part of the front of the kitchen 36. Further, in order to ensure the strength of the kitchen 36 between the storage hole 40 and the front surface 39 of the kitchen 36, the front hanging portion 35 is formed leaving the corners of the top plate 38 and the front surface 39. The front hanging part 35 forms the upper part of the opening 41. The thickness of the front hanging portion 35 in the vertical direction is about 45 mm.

  When the main body 1 is stored in the storage hole 40, the front portion 31 is set to be flush with the front surface 39 of the kitchen 36, and forms a part of the front surface 39 of the kitchen 36 so that the front surface 39 is clean. Become.

When the main body 1 is stored in the storage hole 40 of the kitchen 36, the concave portion 37 puts the front portion 31 of the main body 1 into the storage hole 40 first and tilts the main body 1 forward from the storage hole 40 of the kitchen 36. The main body 1 is set in the storage hole 40 while the front part 31 is set in the opening 41 from the inside of the kitchen 36 in the opening 41 from the inside of the kitchen 36. At this time, since the lower portion of the rear portion 33 of the main body 1 is inclined, the concave portion 37 of the main body 1 is hooked on the front hanging portion 35 in the storage hole 40, and at the same time, the top plate 32 is inclined in the forward direction. The main body 1 is set in the storage hole 40 with the rotation center as a center. The main body 1 is stored in the storage hole 40, and the front portion 31 is arranged on the same plane as the front surface 39 of the kitchen 36.

  The upper surface of the concave portion 37 is constituted by the top plate 32, and the deep vertical wall portion 42 is formed by a support metal fitting 43 which is a part of the main body 1. The cross section of the support fitting 43 is U-shaped. An upper plane 44 provided on the vertical wall surface 42 and a lower plane 45 provided below are configured. An intake surface 46 formed by the lower flat surface 45 of the support metal 43 is located below the front hanging portion 35. The upper plane 44 is in contact with and supports the lower surface of the top plate 32.

  A plurality of elongated holes 47 are provided at a position above the operation portion 21 on the intake surface 46 to communicate the inside of the main body 1 and the recess 37 in the vertical direction. The vent hole 47 has a width of about 5 mm and a length of about 20 mm, and allows a large object to pass through but not through the wind. The top plate 32 and the intake surface 46 are positioned so as to sandwich the front hanging portion 35 of the kitchen 36 from above and below.

  The front hanging part 35 differs in the thickness direction, that is, the dimension in the vertical direction, depending on the kitchen 36. Therefore, unless the dimension of the concave portion 37 in the vertical direction is designed to be larger than that of the front hanging portion 35, when the main body 1 is set on the kitchen 36, the front hanging portion 35 hits the concave portion 37 and cannot be set. Therefore, after the main body 1 is set in the kitchen 36, a gap is always formed between the lower portion of the front hanging portion 35 and the lower flat surface 45, that is, the intake surface 46. This gap visually deteriorates the design and easily collects dust and dust. Therefore, the front decoration frame 48 having a substantially U-shaped cross section painted on the steel plate for blindfolding is fixed to the upper portion of the front portion 31. The front decoration frame 48 has a height dimension of about 10 mm. When the front decoration frame 48 is set on the front portion 31, it fills the gap between the front hanging portion 35 and the front portion 31, improving design and venting dust and dust. Intrusion into the hole 47 is prevented.

  The front portion 31 is disposed in the opening 41 so as to be positioned on the same plane as the front surface 39 of the kitchen 36. When the gap generated between the upper surface of the front portion 31 and the lower surface of the front drooping portion 35 is larger, several types of front decoration frames 48 having different dimensions in the height direction are prepared and appropriately blindfolded.

  A plurality of through holes 49 are provided in the front decoration frame 48, and the interior and the concave portion 37 below the front hanging portion 35 are connected spatially.

  The vertical wall portion 42 located at the back of the concave portion 37 serves as a wall that fixes the top plate 32 and the front portion 31 and prevents water and the like from entering the main body 1 at the back of the concave portion 37. The main body 1 is formed with a concave portion 37 in order to avoid the front drooping portion 35, and has a shape that is necessary for storage in the kitchen 36. Since the concave portion 37 avoids the front drooping portion 35, the front portion 31 is generally flush with the front surface of the entire kitchen 36, so the concave portion 37 is formed. Accordingly, when an integrated built-in type electromagnetic heating cooker as in the present application is set from the storage hole 40 and the front portion 31 is exposed to the room from the opening 41, a recess for avoiding the front drooping portion 35 of the kitchen 36. 37 becomes an inevitable shape.

A shielding plate 50 serving as a liquid blocking member is provided below the lower plane 45 and positioned inside the front portion 31. The shielding plate 50 formed by bending a steel plate is a horizontally long component having a substantially J-shaped cross section. By fixing the fixing claw 51 to the cut-and-raised portion 52 of the vertical wall portion 42, the longitudinal direction is arranged and fixed in the left-right direction below the intake surface 46 and obliquely above the intake port 17 of the fan 13. To position. Further, it is located above the operation unit 21. When the high shielding portion 53 located below the fixed claw 51 of the shielding plate 50 is fixed to the vertical wall portion 42 with the fixed claw 51, it extends below the vertical wall portion 42 as an extension surface of the vertical wall portion 42. It is extended.

  The shielding plate 50 is longer than both ends of the arrangement of the plurality of vent holes 47 and is designed to receive all the material that falls from the vent holes 47. The shield plate 50 is disposed at a position to receive the fallen object from the vent holes 47. ing. Further, the size of the shielding plate 50 is larger than the opening diameter of the air inlet 17 which is the circular shape of the fan case 14. Further, since the cooling fan 11 is arranged at the left / right sorting center line position of the ventilation hole 47, the intake port 17 located at the substantially center of the cooling fan 11 is also arranged at the left / right sorting center line position of the ventilation hole 47.

  Further, the position of the shielding plate 50 is located between the air hole 47 of the intake surface 46 and the air inlet 17 of the cooling fan 11 so that the air inlet 17 cannot be directly seen from the air hole 47 and from the air inlet 17. It is sized to shield all the straight lines connecting the vent hole 47 and the intake port 17 so that 47 is not directly visible, and is arranged at a position to shield all the straight lines.

  In FIG. 6, the dimension (A) in which the ventilation holes 47 provided in the lower surface 45 of the support metal fitting 43 are arranged, the dimension (B) in the longitudinal and lateral direction of the shielding plate 50, and the dimension of the inlet 17 of the cooling fan 11 (C ), The dimension (B) of the shielding plate 50 is the largest, and both the dimension (A) and the dimension (C) are smaller than the dimension (B). The respective arrangements of the vent holes 47, the shielding plate 50, and the intake port 17 in the left-right direction are as shown in FIG.

  Since the shielding portion 53 of the shielding plate 50 extends below the vertical wall portion 42, the straight line connecting the ventilation hole 47 and the intake port 17 of the cooling fan 11 is completely blocked.

  The shielding plate 50 is located below the intake surface 46 and below the ventilation hole 47. Since the cross section of the shielding plate 50 is J-shaped, when liquid enters from the vent hole 47, it drops into the J-shaped groove 54. Even when the cooling fan 11 is operating, the air sucked from the ventilation hole 47 is directly sucked into the intake port 17 of the cooling fan 11 from the ventilation hole 47 by the shielding part 53 and the vertical wall part 42 of the shielding plate 50. Never jump in. It is obstructed by the shielding part 53 of the shielding plate 50, bypasses both ends of the shielding plate 50, and travels from both ends of the shielding plate 50 toward the intake port 17.

  Since the opening area of the ventilation hole 47 is smaller than the cross-sectional area of any part of the air flow that bypasses the shielding plate 50, the intake resistance is determined by the opening area of the ventilation hole 47. Specifically, the cross-sectional area of the air flow is about twice that of the vent hole 47.

  When liquid enters from the vent hole 47, it drops into the J-shaped groove 54. Since the J-shaped groove 54 is kept substantially horizontal, the liquid accumulated in the J-shaped groove 54 is pushed by the intake air and moves to both ends of the J-shaped groove 54, and then drops into the main body 1 from there. The dropped liquid is dropped on the operation unit 21 located under the shielding plate 50 and then stays at the bottom inside the main body 1. It will evaporate naturally over a long period of time.

  An avoidance hole 55 is provided at the front end of the J-shaped groove 54 in the front direction of the shielding plate 50. This is because the shielding plate 50 becomes a load on the cooling fan 11 when the air is sucked from the vent hole 47. Therefore, in order to reduce the load, the avoidance hole 55 is provided to improve the ventilation.

  The side hole 56 is located in front of the right side when viewed from the front of the main body 1 and is provided on the right side located beside the air inlet 17 of the cooling fan 11. By providing a path, it is configured to ensure intake. The side hole 56 communicates the outside of the main body 1 and the vicinity of the intake port 17.

A plurality of slits 57 are provided in the lower portion of the operation unit storage unit 23. The slit 57 communicates the gap between the operation unit 21 and the operation unit storage unit 23 and the vicinity of the air inlet 17 of the cooling fan 11, regardless of whether the operation unit 21 is stored or tilted forward for operation. Is provided.

  An intake space 58 is formed between the intake port 17 and the operation unit storage portion 23, and the intake space 58 communicates with the vent hole 47, the side surface hole 56, and the slit 57. Air can be supplied.

  A horizontally long exhaust port 59 is provided on the left and right sides of the rear portion of the main body 1. The exhaust port 59 cools the control block 10 and the main heating coil 24 in the main body 1 and exhausts the air whose temperature has increased. A cooking pan 60 is placed on the top plate 32.

  The operation and action of the electromagnetic heating cooker configured as described above will be described below.

  First, when heating with the right burner of an electromagnetic heating cooker, the pan 60 which is an object to be heated is placed on the top plate 32 on the right main heating coil 24. High frequency power is supplied from the right control board 4 to the main heating coil 24, and the pan 60 is heated by the magnetic force from the main heating coil 24. When the necessary heating is finished, the power supply from the right control board 4 is stopped. Since the right control board 4 and the main heating coil 24 generate heat during heating, the cooling fan 11 is operated for cooling. The motor 12 is driven by the right control board 4. The fan 13 rotates counterclockwise when viewed from the front of the main body 1 via the motor 12. The cooling fan 11 blows cooling air to the control block 10, while taking in air from the intake port 17.

  The pressure in the vicinity of the air inlet 17 is slightly lower than the atmospheric pressure, and air tends to collect in the vicinity of the air inlet 17. Air that has passed through the vent hole 47 through the through hole 49 of the front decoration frame 48 is sucked into the main body 1 from the gap between the lower flat surface 45 that is the upper surface of the front portion 31 of the main body 1 and the front hanging portion 35. Further, the air is sucked into the vicinity of the air inlet 17 from the slit 57 into the main body 1. Further, the air inside the kitchen 36 is collected near the air inlet 17 through the side hole 56. In the intake from the vent hole 47, the liquid being cooked or the water used for cooking falls from the gap between the kitchen 36 and the front portion 31 and enters the vent hole 47 through the front decoration frame 48 of the front portion 31. There is a case. The gap is inevitably generated because the height of the front drooping portion 35 of the kitchen 36 is different, and it is considered that the intrusion of water from the vent hole 47 may occur during long-term use.

  In addition, the plurality of ventilation holes 47 are provided in the intake surface 46 in order to prevent large foreign matter from entering the main body 1. The opening area of the vent hole 47 is about 1 parallel centimeter, and there are about 20 vent holes 47.

  Since the front decoration frame 48 is attached to the gap between the front hanging portion 35 and the intake surface 46, the indoor air passes through the through hole 49 in the horizontal direction. Air that enters the space surrounded by the front hanging portion 35, the intake surface 46, and the vertical wall portion 42, that is, the concave portion 37, enters the front portion 31, that is, the main body 1 from the vent hole 47. Next, the air that has passed through the vent hole 47 advances in the direction of the air but hits the shielding plate 50. The air that hits the J-shaped groove 54 and the shielding portion 53 and cannot reach the intake port 17 directly moves along the shielding plate 50 in the left-right direction of the shielding plate 50. Part of the air passes through the avoidance hole 55, passes over the operation storage portion 23, and reaches the intake port 17. The air detoured along the shielding plate 50 is released to the upper part of the operation unit 21 at the end of the shielding plate 50 and is sucked into the intake port 17.

At this time, when liquid such as water droplets enters the gap between the front drooping part 35 and the front part 31 in a droplet form, it enters the front part 31 through the through hole 49 and the vent hole 47 together with the intake air. When it reaches the inlet 17 as it is, it is sucked into the cooling fan 11 together with air and enters the control block 10 and adheres to the right control board 4 and the left control board 5 to cause insulation deterioration and failure. 50, entry of liquid droplets and the like is blocked by the shielding plate 50. The blocked liquid falls along the J-shaped groove 54 to both sides of the operation unit 21 and eventually stays at the bottom of the main body 1 near the operation unit 21 in the main body 1. While the cooling fan 11 is in operation, there is air entering from the slit 57, and the liquid staying in the vicinity of the operation unit 21 is naturally evaporated over a long period of time. The evaporated liquid passes through the control block 10 and is exhausted into the room from an exhaust port 59 provided in the rear portion of the main body 1. Since the liquid slowly evaporates, the control block 10 is not deteriorated in insulation or broken in the main body 1.

  The air that enters the front portion 31 from the slit 57 of the operation portion 21 does not directly enter the front portion 31 because the slit 57 is provided in the back of the operation portion storage portion 23. Moreover, since the side hole 56 is opened inside the kitchen 36, water does not enter. Therefore, the air that has entered through the side hole 56 reaches the intake port 17 directly.

(Embodiment 2)
FIG. 7 is a partial view showing a plurality of embodiments of through holes provided in the electromagnetic heating cooker according to the second embodiment of the present invention.

  In FIG. 7A, the through hole 60 is circular, and the front decorative frame 61 is uniformly perforated. Easy to process and can be processed economically.

  In FIG. 7B, the through hole 62 is formed into an oval shape in the horizontal direction, and the front decoration frame 63 is uniformly formed in the horizontal direction. Processing is relatively simple, and an intake air amount can be secured.

  In FIG. 7C, a large number of through holes 64 are formed in a staggered manner with one through hole 64 as a small area. It is possible to prevent dust and foreign matter from entering the recess 37 from the front decoration frame 65.

  In FIG. 7 (d), a large through hole 66 far from the center of the intake port 17 is formed in an oval shape in order to make one opening area relatively large, and a small through hole 67 near the center of the intake port 17 is formed. One opening area is relatively small. At a position close to the center of the intake port 17 where the intake force is strong, the small through hole 67 having a relatively small opening area is sucked with a strong intake force, and on the contrary, at a position far from the intake port 17 where the intake force is weak, a relatively large opening area is large. The through hole 66 is sucked with a weak suction force. As a result, the amount of air that enters the recess 37 from the front decorative frame 68 is sucked in average by the large through hole 66 and the small through hole 67 of the front decorative frame 68, and a person is placed in front of the front portion 31. Even if you are standing, you will not feel the strength of the intake air.

  Including the above contents, the same reference numerals and names as those of the first embodiment have the same functions as those of the first embodiment, and thus the description thereof is omitted.

  The operation of the electromagnetic heating cooker configured as described above is the same as that of the first embodiment, and will be omitted. Operations and operations other than those described above are the same operations and operations as in the first embodiment.

  The through holes 60, 62, 64, the large through holes 66, and the small through holes 67 do not need to be provided in the front decoration frames 61, 63, 65, 68, and are omitted if the cooling fan 11 has sufficient intake capacity. May be.

  Further, although the shielding plate 50 is positioned above the operation unit 21 in the first embodiment, it is located between the vent hole 47 and the intake port 17 and splashes or the like directly enter the intake port 17 from the vent hole 47. Can be prevented.

  Further, although the cooling fan 11 is a centrifugal fan or a turbo fan, the sirocco fan shaft may be arranged vertically. The intake port 17 may be positioned between the operation unit 21 and the control block 10.

  Further, the operation unit 21 does not have to be movable. The operation unit 21 may be a part of the main body 1.

  Further, since the side hole 56 is provided to improve the intake capacity of the cooling fan 11, it may be provided on the bottom surface of the main body 1.

  Further, the slit 57 may be provided in the vicinity of the front surface of the main body 1 without being provided in the operation unit 21.

  As described above, the electromagnetic heating cooker according to the present invention eliminates intake air from the rear of the main body arranged on the conventional kitchen top surface, and adopts an intake configuration from the front of the main body, so that water droplets and splashes into the main body can be obtained. In addition to preventing the intrusion of liquids and droplets from the vents on the front of the main unit, and once the liquid that has entered the main unit is slowly dried and evaporated in the main unit, the deterioration of the control circuit in the main unit It can evaporate naturally outside the main body without causing a failure. An electromagnetic heating cooker can be provided.

Sectional drawing of the electromagnetic heating cooker in Embodiment 1 of this invention The perspective view of the storage hole and opening of the kitchen which stores the electromagnetic heating cooker in Embodiment 1 of this invention The figure which has accommodated the electromagnetic heating cooker main body in Embodiment 1 of this invention in the storage part of a kitchen. The perspective view of the electromagnetic heating cooker in Embodiment 1 of this invention The perspective view of the components of the electromagnetic heating cooker in Embodiment 1 of this invention The figure showing the dimensional relationship of the components of the electromagnetic heating cooker in Embodiment 1 of this invention The partial view of the through-hole which provided the front decoration frame of the electromagnetic heating cooker in Embodiment 2 of this invention

Explanation of symbols

1 Main body 10 Control block (control circuit)
11 Cooling fan (blower)
17 Intake port 21 Operation section 24 Main heating coil (electromagnetic heating coil)
25 Auxiliary heating coil (electromagnetic heating coil)
26 Grill 30 Door 31 Front portion 32 Top plate 35 Front hanging portion 36 Kitchen 37 Recess 38 Top plate 39 Front 40 Storage hole 41 Opening portion 47 Vent hole 48 Front decoration frame 49 Through hole 50 Shield plate (liquid blocking member)

Claims (7)

A substantially rectangular storage hole provided in the top plate with a horizontal top plate and a vertical front surface, a laterally long opening provided in the front surface with the same center line as the center line of the storage hole, and the storage hole And a kitchen provided with a front hanging part provided between the opening, a main body provided with a top plate having a size larger than the storage hole on the top surface, a front part convex to the front of the main body, a top plate and a front part, A recessed portion that accommodates the front hanging portion of the kitchen when the main body is stored in the storage hole in a shape that is recessed in the direction of the rear of the main body in the horizontal direction formed between, and a door provided on the front portion provided in the main body. A grill part, a plurality of electromagnetic heating coils provided below the top plate in the main body, a control circuit for supplying electric power to the electromagnetic heating coil, and an air blower disposed on the front side of the control circuit in the main body And the control circuit provided in the main body Constituted by an operation section for work, and a plurality of ventilation holes provided on the upper surface of the front portion, an electromagnetic cooking device which is configured to include a liquid blocking member between the inlet of the vent hole and the blower. The electromagnetic heating cooker according to claim 1, wherein the electromagnetic cooking device has a liquid blocking member having an area that shields a space including a path through which liquid directly jumps from an arbitrary vent hole to an air inlet of the blower. The liquid blocking member is provided with an accumulation groove in a lower part, and a drainage part of the accumulation groove is provided outside a space including a path in which liquid directly jumps from an arbitrary vent hole to an air inlet of a blower. 2. The electromagnetic heating cooker according to 2. The front decoration frame which closes the crevice between a front hanging part and a crevice is provided, a plurality of through holes are provided in a front decoration frame, and the air intake by the air blower takes the air from the through holes through the ventilation holes. The electromagnetic heating cooker of any one of -3. Closes the gap between the front hanging part and the recessed part, is located in front of the plurality of ventilation holes, and has a front decorative frame with a U-shaped cross section that is long in the horizontal direction on the left and right, and on the flat part in front of the front decorative frame The electromagnetic heating cooker according to any one of claims 1 to 3, wherein a plurality of through holes are provided, and intake air from the blower is sucked from the through holes through the air holes. The area of one through-hole is a relatively small hole shape at a position close to the center line of the blower, and a relatively large hole shape at a position far from the center line. The electromagnetic heating cooker described in 1. The electromagnetic heating cooker according to any one of claims 1 to 6, wherein a plurality of ventilation holes are provided on the upper surface of the front portion excluding the range above the grill portion.

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