Electromagnetic induction heating cooker

Abstract

To reduce measurement errors in weight caused by the bending of a cable connecting a heating unit and a control unit, thereby enabling more accurate measurement of the weight of a heated object in an electromagnetic induction heating cooker equipped with a weighing function to measure the weight of the heated object.SOLUTION: The electromagnetic induction heating cooker includes a top plate 2 on which an object to be heated is placed, a heating unit 3 supporting the top plate 2 from below to heat the object to be heated, a weighing unit 4 supporting the heating unit 3 from below to measure the weight of the object to be heated, a control unit 5 controlling the heating unit 3, and a cable 6 connecting the heating unit 3 to the control unit 5. The control unit 5 is positioned below the weighing unit 4.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an electromagnetic induction cooking appliance having a weighing function for measuring the weight of an object to be heated. [Background technology]

[0002] An electromagnetic induction heating cooker (hereinafter referred to as "cooker") with a weighing function is disclosed, for example, in Patent Document 1. The cooker in Patent Document 1 is composed of a relatively flat, rectangular box-shaped casing, a heating coil housed within the casing, a coil base, a weight sensor, and the like. The casing is made up of an upper case and a lower case that are movable relative to each other vertically, and the top surface of the upper case forms a top plate that supports the object to be heated. The heating coil and coil base are both formed in a horizontal disk shape, and the heating coil is supported on the upper surface of the coil base. Multiple pillars extending vertically are integrally formed around the periphery of the coil base. The upper end of each pillar supports the top plate, and the lower end of each pillar rests on a weight sensor. The weight sensors are lined up and fixed to the inner bottom surface of the lower case, along with a control board that controls the heating coil.

[0003] When an object to be heated is placed on the top plate, the upper case including the top plate, together with the coil base and heating coil, moves downward relative to the lower case, and the weight of the object to be heated acts on the weight sensor via the top plate and each column. The weight of the object to be heated measured by the weight sensor is output to the control board. The temperature of the object to be heated measured by the temperature sensor on the top plate is also output to the control board. The control board controls the output and drive time of the heating coil based on the weight and temperature of the object to be heated output from each sensor. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-12517 Summary of the Invention [Problem to be solved by the invention]

[0005] As described above, in the cooker of Patent Document 1, the weight sensor and control board are fixed side by side on the inner bottom surface of the lower case, with the coil base and heating coil positioned above them. This allows all components inside the casing to be compactly arranged vertically, thereby miniaturizing the casing and, ultimately, the cooker. However, with the configuration of Patent Document 1, if the cable connecting the heating coil and the control board bends when the heating coil descends with the upper case, this could result in errors in the weight sensor's measurement value. More specifically, in the cooker of Patent Document 1, the vertical distance from the heating coil to the control board is short. Therefore, if the length of the cable connecting the two (the heating coil and the control board) is short to match this vertical distance, the cable will inevitably bend, for example, when the heating coil descends with the upper case. If the cable bends in this way and exerts an elastic force in a direction that straightens the cable, in other words, if the cable exerts an elastic force in a direction that pushes the heating coil upward, errors in the weight sensor's measurement value will inevitably occur.

[0006] An object of the present invention is to provide an electromagnetic induction heating cooker that can reduce weight measurement errors caused by bending of the cable connecting the heating unit and the control unit, and can more accurately measure the weight of the object to be heated. [Means for solving the problem]

[0007] The electromagnetic induction cooking appliance according to the present invention comprises a top plate 2 on which an object to be heated is placed, a heating unit 3 that supports the top plate 2 from below and heats the object to be heated, a weighing unit 4 that supports the heating unit 3 from below and measures the weight of the object to be heated, a control unit 5 that controls the heating unit 3, and a cable 6 that connects the heating unit 3 to the control unit 5. The control unit 5 is located below the weighing unit 4.

[0008] It has a casing 1 that surrounds the sides of the heating unit 3, the weighing unit 4, and the control unit 5, and a wiring space 7 that accommodates cables 6 is formed between the outer surfaces of the heating unit 3, the weighing unit 4, and the control unit 5 and the inner surface of the casing 1.

[0009] The heating unit 3 includes a heating coil 24 that generates an induction magnetic field above the top plate 2, and a housing 29 that houses the heating coil 24, and the housing 29 and the casing 1 are made of metal.

[0010] It is provided with a base member 8 that houses the control unit 5, and the base member 8 is formed to be larger than the heating unit 3 and the weighing unit 4 in plan view. The lower part of the casing 1 is fixed to the side of the base member 8, and the upper part of the casing 1 surrounds the heating unit 3 and the weighing unit 4 from the sides.

[0011] The weighing unit 4 is supported from below by a base member 8.

[0012] A cover wall 37 extending downward is provided at the end of the top plate 2, and the cover wall 37 covers the upper end of the casing 1 from the outside with a horizontal gap therebetween.

[0013] An operating unit 17 is provided on the front surface of the casing 1. A gutter 38 running from left to right is provided at the front end of the top plate 2, and liquid holes 39 for allowing liquid to flow down are opened at both ends of the bottom wall of the gutter 38. [Effects of the Invention]

[0014] In an electromagnetic induction cooking appliance according to the present invention, which includes a heating unit 3, a weighing unit 4 that supports the heating unit 3 from below and measures the weight of the object to be heated, and a control unit 5 that controls the heating unit 3, if the control unit 5 is disposed below the weighing unit 4, in other words, if the heating unit 3, weighing unit 4, and control unit 5 are disposed in that order from top to bottom, the vertical distance from the heating unit 3 to the control unit 5 can be made greater than in a configuration in which the control unit 5 is disposed directly below the heating unit 3. This allows the length of the cable 6 connecting the two (the heating unit 3 and the control unit 5) to be longer than in a configuration in which the control unit 5 is disposed directly below the heating unit 3, thereby enabling the two units 3 and 5 to be connected loosely by a longer cable 6 and preventing the cable 6 from flexing with tension fluctuations when the heating unit 3 moves up and down. As described above, according to the present invention, the influence of tension fluctuations in the cable 6 on the measurement value of the weighing unit 4 is reduced, thereby enabling the weight of the object to be measured more accurately.

[0015] By enclosing the sides of the heating unit 3, weighing unit 4, and control unit 5 in the casing 1, each unit 3 to 5 can be protected from overflow from the heated object and external impacts. If the casing 1 comes into contact with the heating unit 3 and weighing unit 4, it becomes difficult to accurately measure the weight of the heated object. Therefore, it is necessary to leave space between the inner surface of the casing 1 and the outer surfaces of both units 3 and 4, but by using this space as wiring space 7 for the cable 6 as in the present invention, this space can be used effectively.

[0016] If the heating coil 24 of the heating unit 3 is housed in a housing 29 and the housing 29 and the casing 1 are made of metal, the housing 29 and the casing 1 form a double electromagnetic wave shield around the heating coil 24, thereby further suppressing magnetic leakage from the side of the casing 1.

[0017] By forming the base member 8 that houses the control unit 5 larger than the heating unit 3 and the weighing unit 4 in a planar view and fixing the lower part of the casing 1 to the side of the base member 8, a wiring space 7 for the cable 6 can be easily formed between the upper part of the casing 1 and the heating unit 3 and the weighing unit 4.

[0018] By supporting the weighing unit 4 from below with the base member 8, it is possible to prevent the weighing unit 4 from being placed directly on the control unit 5, and therefore it is possible to prevent the weight of the weighing unit 4 from being applied to the control unit 5.

[0019] If a cover wall 37 is provided at the end of the top plate 2 so as to cover the upper end of the casing 1 from the outside, when water spills over and flows down from the cooking container P on the top plate 2, the water can be prevented from entering the casing 1. Furthermore, if a horizontal gap is formed between the upper end of the casing 1 and the cover wall 37, the top plate 2 will not come into contact with the casing 1, and errors in the measurement values ​​of the measuring unit 4 due to such contact can be prevented.

[0020] A gutter 38 running from side to side is provided at the front end of the top plate 2, and liquid holes 39 for allowing liquid to flow down are opened at both ends of the bottom wall of the gutter 38, so that water that spurts forward from the cooking container P on the top plate 2 flows into the gutter 38 and flows down from the liquid holes 39 on both sides. In other words, water is less likely to overflow from the center of the gutter 38, which reduces soiling of the center of the operating unit 17 located below. [Brief explanation of the drawings]

[0021] [Figure 1] 1 is a front view of an internal structure of an electromagnetic induction heating cooker according to an embodiment of the present invention. [Figure 2] FIG. 1 is a perspective view of an electromagnetic induction heating cooker. [Figure 3] FIG. 2 is a vertical sectional front view of the upper part of the electromagnetic induction cooking appliance. [Figure 4] FIG. 2 is a vertical cross-sectional side view of the upper part of the electromagnetic induction cooking appliance. [Figure 5] FIG. 2 is a plan view of the operation unit seen through the operation cover. [Figure 6] FIG. 2 is an exploded perspective view of the electromagnetic induction cooking appliance with the casing separated therefrom. DETAILED DESCRIPTION OF THE INVENTION

[0022] (Embodiment) Figures 1 to 6 show an embodiment of an electromagnetic induction heating cooker (hereinafter referred to as "cooker" where appropriate) according to the present invention. In this embodiment, front, back, left, right, and top and bottom refer to the crossed arrows shown in Figures 1 and 2 and the indications of front, back, left, right, and top and bottom written near each arrow. As shown in both figures, the cooker comprises a rectangular frame-shaped casing 1 having an opening on the top surface, and a top plate 2 arranged to close the opening from above, and a cooking vessel P such as a pot containing an object to be heated is placed on the top plate 2.

[0023] The casing 1 contains, from top to bottom, a heating unit 3 that heats the object to be heated (the object contained in the cooking container P) placed on the top plate 2, a weighing unit 4 that measures the weight of the object to be heated, and a control unit 5 that controls the entire cooker. The heating unit 3 is electrically connected to the control unit 5 via cables 6 arranged on each side of the heating unit 3, and the weighing unit 4 is also electrically connected to the control unit 5 via a cable not shown. The upper part of the casing 1 surrounds the sides of the heating unit 3 and the weighing unit 4 on all four sides, and the lower part of the casing 1 surrounds the sides of the control unit 5 on all four sides. A wiring space 7 for accommodating the cable 6 is formed between the outer surfaces of the heating unit 3, the weighing unit 4, and the control unit 5 and the inner surface of the casing 1. The casing 1 is made of a metal such as stainless steel to prevent leakage of magnetic and electromagnetic waves generated by the heating unit 3.

[0024] The measuring unit 4 supports the entire heating unit 3 from below. The heating unit 3 also supports the entire top plate 2 from below. In addition, the casing 1 is not in contact with the top plate 2, heating unit 3, or measuring unit 4, so the weight of the top plate 2 and the like does not act on the casing 1. Therefore, the weights of the heating unit 3 and top plate 2 and the weight of the object to be heated (including the cooking container P) on the top plate 2 act on the measuring unit 4. Because the former weight (the weight of the heating unit 3 and top plate 2) is constant, the latter weight, i.e., the weight of the object to be heated, can be measured by subtracting the former weight from the measurement value of the measuring unit 4 in advance.

[0025] A base member 8 is provided at the bottom of the cooking appliance, serving as its foundation. A casing 1, which is an exterior panel, is fixed to surround the base member 8 on all four sides (front, back, left, and right). The base member 8 includes a main body frame 9 formed in a C-channel shape with openings on the front, back, and top, and a pair of left and right support frames 10 fixed to the edges of the opening on the top of the main body frame 9. The main body frame 9 is formed larger than each of the units 3 to 5 in a plan view. The control unit 5 is housed inside the main body frame 9, and the weighing unit 4 is supported by the support frame 10. The weighing unit 4 is composed of a base 11 supported by the support frame 10, a weighing machine 12 provided on the base 11, and a platform 13 placed on top of the weighing machine 12, and is located approximately in the center of the casing 1. The platform 13 is formed in the shape of a rectangular box that opens downward, and surrounds the weighing machine 12 on all four sides.

[0026] As shown in FIG. 2, an operation unit 17 operated by a cook is provided on the outer surface of the front wall 16 of the casing 1. The operation unit 17 is composed of a touch panel 18, a rotary dial 19, and push buttons 20. The operation unit 17 is located at the top of the front wall 16, and the top of the operation unit 17 is inclined downward toward the front. A transparent, rectangular operation cover 21 is detachably attached to the upper end of the front wall 16. The operation cover 21 covers the operation unit 17 from above, protecting it from water that may boil over from the cooking container P on the top plate 2. A cook standing in front of the cooker can adjust the output of the heating coil 24 of the heating unit 3 by operating the operation unit 17 while viewing the entire operation unit 17 through the operation cover 21.

[0027] As shown in FIG. 3 , the heating unit 3 is composed of a horizontal, disk-shaped heating coil 24 facing the inner surface of the top plate 2, an inverter board 25 that supplies high-frequency current to the heating coil 24, a partition wall 26 that separates the heating coil 24 and the inverter board 25 from above and below, two temperature sensors 27 and 28 that detect the temperature of the cooking container P through the top plate 2, and a housing 29 that houses these components. The heating coil 24 is made of a litz wire, which is made by twisting together multiple strands of wire and winding it into a spiral shape. The litz wire is formed through a primary twisting process in which the strands are twisted together, and a secondary twisting process in which the primarily twisted strands are twisted together. When a high-frequency current is supplied to the heating coil 24 from the inverter board 25, an induced magnetic field is generated above the top plate 2, causing eddy currents to flow in the cooking container P on the top plate 2. The Joule heat generated by the electrical resistance heats the cooking container P and the food contained therein.

[0028] The top plate 2 on which the cooking container P is placed is composed of a rectangular top frame 32, a rectangular baking sheet 33 fitted inside the top frame 32, and a magnetic shield plate 34. The baking sheet 33 and the magnetic shield plate 34 are stacked one on top of the other in the order shown and are supported from below by a support flange 35 with an L-shaped cross section that protrudes from the inner peripheral edge of the top frame 32. The baking sheet 33 is made of heat-resistant glass, and its top surface is approximately flush with the top surface of the top frame 32. The magnetic shield plate 34 is made of a non-magnetic, conductive material such as aluminum or copper, and has a circular coil opening 36 in its center that allows the heating coil 24 to face the baking sheet 33. The diameter of the coil opening 36 is set slightly larger than the outer diameter of the heating coil 24.

[0029] As shown in FIGS. 3 and 4 , cover walls 37 extend downward from the left, right, and rear ends of the top frame 32, covering the upper end of the casing 1 from the outside. However, if the top plate 2 touches the casing 1, an error will occur in the measurements of the measuring unit 4. Therefore, a horizontal gap of several millimeters is formed between the upper end of the casing 1 and each cover wall 37. As shown in FIGS. 4 and 5 , a gutter 38 running from left to right is provided at the front end of the top frame 32. The gutter 38 is located above the operation cover 21 and catches water or the like that spills forward from the cooking container P before the operation cover 21 can reach it. Liquid holes 39 are formed at both left and right ends of the bottom wall of the gutter 38 to allow water or the like that flows into the gutter 38 to flow down. Therefore, water or the like that flows into the gutter 38 flows down through the liquid holes 39 before overflowing the gutter 38.

[0030] As shown in FIG. 3 , the top plate 2 is supported by the upper end of a housing 29 of the heating unit 3. The housing 29 is made of a metal such as stainless steel and has a rectangular box shape with an opening on the top surface. The housing 29 is composed of a center case 41 that forms the left and right center of the housing 29 and a pair of side cases 42 that form the left and right ends. The center case 41 is formed to have the same width as the platform 13 of the weighing unit 4 and is placed on the platform 13. Each side case 42 has a joining wall 43 that extends downward along the outer surface of the platform 13 and is joined to the outer surface, and a side wall 44 that forms the left or right surface of the housing 29. The side walls 44 face each other laterally, with the heating coil 24 and inverter board 25 between them. A first upper support piece 45 that protrudes outward and supports the top frame 32 from below, and a second upper support piece 46 that protrudes inward and supports the support flange 35 from below, are formed at the upper end of each of the side walls 44.

[0031] Of the two temperature sensors 27 and 28 that make up the heating unit 3, the first temperature sensor 27 is a thermistor that is in close contact with the center of the underside of the top panel 33 of the top plate 2 and detects the temperature, and is supported by a sensor bracket 49 that stands upright from the upper surface of the partition wall 26 toward the center hole of the heating coil 24. The second temperature sensor 28 is a radiation thermometer that detects the temperature of infrared rays radiated from the top panel 33 and is disposed in a reclining position on the underside of the partition wall 26. A triangular prism 50 with a 45-degree reflective surface is disposed in front of the second temperature sensor 28, and a detection hole 51 is opened in the center of the partition wall 26 that faces the reflective surface of the prism 50 and the center hole of the heating coil 24. In other words, infrared rays emitted downward from the center of the underside of the top plate 33 pass through the central hole of the heating coil 24 and the detection hole 51 to reach the prism 50, where they are reflected horizontally by its reflective surface toward the second temperature sensor 28, and their temperature is detected by the second temperature sensor 28.

[0032] As shown in FIG. 4 , an air intake port 54 is provided on the front surface of the housing 29 of the heating unit 3, and an exhaust port 55 is provided on the rear surface of the housing 29. A cooling mechanism 56 for cooling the heating unit 3 is disposed on the inner surface of the front wall 16 of the casing 1. The cooling mechanism 56 includes a supply duct 57 extending vertically along the inner surface of the front wall 16 and an axial cooling fan 58 housed inside the supply duct 57. When the cooling fan 58 is driven, an upward airflow is generated within the supply duct 57. An intake port 59 for taking in outside air is formed at the lower end of the supply duct 57, and an outlet port 60 for blowing out air is formed at the upper end of the supply duct 57. The intake port 59 opens downward and faces a front air vent 61 formed in the front wall 16 of the casing 1 from above. The front air vents 61 are comprised of long holes aligned in a row on the left and right sides in the front-to-rear direction (see Figure 6), and a dust-collecting filter 63 with an integral handle 62 is attached between the front air vents 61 and the suction port 59. The filter 63 is inserted and removed freely into the front wall 16 through a horizontally long slit 64 opened in the front wall 16.

[0033] The air outlet 60 opens rearward and faces closely to the air inlet 54 of the heating unit 3 (there is a gap between them). The air blown from the air outlet 60 toward the air inlet 54 is divided into two parts, one above the other below the partition wall 26, and flows through the housing 29 from the front (air inlet 54) to the rear (air outlet 55). The air flowing above the partition wall 26 cools the heating coil 24 and the top plate 33, while the air flowing below the partition wall 26 cools the inverter board 25. To ensure this division of air, the front end of the partition wall 26 extends to the air inlet 54. A wind guide piece 67 is provided, continuing from the front end of the partition wall 26 and extending to the air outlet 60. The wind guide piece 67 is inclined downward toward the front of the air outlet 60, and its tip extends slightly into the supply duct 57 (however, it does not touch the wall of the supply duct 57).

[0034] The air after heat exchange that cools the heating coil 24, inverter board 25, etc. is discharged rearward from exhaust port 55 on the rear surface of the housing 29. A group of vertically elongated holes, called rear vent holes 70, is provided in a rear wall 69 that faces the front wall 16 of the casing 1 in the front-to-rear direction (see FIG. 6), and a rear duct 71 that opens at the bottom is formed on the outside of the rear vent holes 70. Therefore, the air after heat exchange that is discharged out of the heating unit 3 from the exhaust port 55 is released downward to the outside of the cooker through the rear vent holes 70 and the rear duct 71.

[0035] 3, the heating coil 24 is placed on the upper surface of the partition wall 26 via a plurality of spacers 74 arranged at equal intervals around the periphery, and the partition wall 26 is supported by a lower support piece 75 integrally provided on the inner surface of the housing 29. In other words, the heating coil 24 is indirectly supported by the housing 29 via the spacers 74 and the partition wall 26. The partition wall 26 is integrally provided with a pair of left and right air passage walls 76 that define an air passage through which the heating coil 24 passes, and a hook piece 77 supported by the lower support piece 75 of the housing 29 protrudes from the outer surface of each air passage wall 76. The lower support piece 75 is provided contiguous with the tip of the second upper support piece 46 described above.

[0036] The inverter board 25 is supported on the bottom surface of the housing 29 and specifically comprises a rectangular board main body 80 that is slightly smaller than the bottom surface of the center case 41, and a heat sink 81 for heat dissipation that is erected on the right half of the board main body 80. The heat sink 81 is surrounded from above and to the left and right by air collection ducts 82 that open at the front and rear ends. As shown in FIG. 4 , a pair of end portions 83 of the heating coil 24 are electrically connected to the board main body 80. Each end portion 83 extends downward toward the inverter board 25 through a through-hole provided in the partition wall 26 and, like the main body of the heating coil 24, is made of a thick, rigid Litz wire. However, since the heating coil 24 and the inverter board 25 are integrated as the heating unit 3 and do not move relative to each other, the end portion 83 of the heating coil 24, i.e., the connection portion with the inverter board 25, does not interfere with the vertical movement of the heating unit 3 including the heating coil 24.

[0037] As shown in Figure 6, the casing 1 includes a front wall 16 and a rear wall 69 that face each other from front to back with the heating unit 3, the measuring unit 4, etc. between them, and a pair of left and right side walls 86, 86 that connect the side edges of the front wall 16 and the rear wall 69. The front air vent 61 is provided in the vertical center of the front wall 16, and the lower part of the front wall 16 closes the front opening of the main body frame 9. The rear air vent 70 is provided in the upper part of the rear wall 69, and the lower part of the rear wall 69 closes the rear opening of the main body frame 9. Each side wall 86 is composed of an upper panel 87 and a lower panel 88 that are connected vertically, and of these, the lower panel 88 is fixed to the outer surface of the main body frame 9.

[0038] When assembling the cooker according to this embodiment, first, each unit 3 to 5 is assembled to the base member 8. Specifically, the control unit 5 is housed and fixed inside the main body frame 9, and the heating unit 3 and measuring unit 4, which are stacked one above the other, are placed on the support frame 10 and fixed thereto. Next, the feed duct 57 is fixed to the main body frame 9, and further, the front wall 16, side wall 86, and rear wall 69, which form the casing 1, are fixed to the main body frame 9. Also, before or after fixing the casing 1 to the main body frame 9, the top plate 2 is fixed to the housing 29 of the heating unit 3. The middle portion of the cable 6 connecting the heating unit 3 and the control unit 5 is inserted through a through hole 90 opened in the top wall of the main body frame 9.

[0039] As described above, in this embodiment, the heating unit 3, the weighing unit 4, and the control unit 5 are arranged in this order from top to bottom, so the vertical distance from the heating unit 3 to the control unit 5 can be made greater than in a configuration in which the control unit 5 is arranged directly below the heating unit 3. This allows the length of the cable 6 connecting the two (heating unit 3 and control unit 5) to be made greater than in a configuration in which the control unit 5 is arranged directly below the heating unit 3, so that the two units 3 and 5 can be connected loosely by a longer cable 6, preventing the cable 6 from flexing with tension fluctuations when the heating unit 3 moves up and down. As described above, this embodiment reduces the effect on the measurement value of the weighing unit 4 caused by tension fluctuations in the cable 6, allowing the weight of the object to be heated to be measured more accurately.

[0040] The sides of the heating unit 3, weighing unit 4, and control unit 5 are surrounded by the casing 1, so each of the units 3 to 5 can be protected from overflow from the object to be heated, external impacts, etc. If the casing 1 comes into contact with the heating unit 3 and the weighing unit 4, it will be difficult to accurately measure the weight of the object to be heated, so it is necessary to leave space between the inner surface of the casing 1 and the outer surfaces of both units 3 and 4. In this embodiment, this space is used as wiring space 7 for the cable 6, so it can be used effectively.

[0041] The heating coil 24 of the heating unit 3 is housed in a housing 29, and the housing 29 and the casing 1 are made of metal, so that the housing 29 and the casing 1 form a double electromagnetic wave shield around the heating coil 24, thereby further suppressing magnetic leakage from the side of the casing 1.

[0042] The base member 8 that houses the control unit 5 is formed larger than the heating unit 3 and the weighing unit 4 in a plan view, and the lower part of the casing 1 is fixed to the side of the base member 8, so that a wiring space 7 for the cable 6 can be easily formed between the upper part of the casing 1 and the heating unit 3 and the weighing unit 4.

[0043] Since the weighing unit 4 is supported from below by the base member 8, it is possible to prevent the weighing unit 4 from being placed directly on the control unit 5, thereby preventing the weight of the weighing unit 4 from being applied to the control unit 5.

[0044] Cover walls 37 are provided at the left and right ends and rear end of top plate 2 to cover the upper end of casing 1 from the outside, so that when water spills over from cooking container P on top plate 2 and flows down from the left and right ends or rear end, the water can be prevented from seeping into casing 1. In addition, a horizontal gap is formed between the upper end of casing 1 and cover walls 37, so that top plate 2 does not come into contact with casing 1, preventing errors in the measurements of measuring unit 4 due to such contact.

[0045] A gutter 38 running from side to side is provided at the front end of the top plate 2, and liquid holes 39 for allowing liquid to flow down are opened at both ends of the bottom wall of the gutter 38, so that water that spurts forward from the cooking container P on the top plate 2 flows into the gutter 38 and flows down from the liquid holes 39 on both sides. In other words, water is less likely to overflow from the center of the gutter 38, which reduces soiling of the center of the operating unit 17 located below. [Explanation of symbols]

[0046] 1 casing 2 top plate 3 Heating Unit 4 Weighing Unit 5. Control Unit 6 Cables 7 Wiring space 8 Base material 17 Control section 24 heating coil 29 Case 37 Covering Wall 38 Gutter 39 Liquid pore

Claims

1. a top plate (2) on which an object to be heated is placed; a heating unit (3) that supports the top plate (2) from below and heats the object to be heated; a weighing unit (4) that supports the heating unit (3) from below and measures the weight of the object to be heated; a control unit (5) for controlling the heating unit (3); a cable (6) connecting the heating unit (3) to the control unit (5); It is equipped with An electromagnetic induction cooking appliance characterized in that a control unit (5) is disposed below a measuring unit (4).

2. The heating unit (3), the measuring unit (4), and the control unit (5) are enclosed in a casing (1), 2. The electromagnetic induction heating cooker according to claim 1, wherein a wiring space (7) for accommodating cables (6) is formed between the outer surfaces of the heating unit (3), the measuring unit (4) and the control unit (5) and the inner surface of the casing (1).

3. The heating unit (3) includes a heating coil (24) that generates an induction magnetic field above the top plate (2) and a housing (29) that houses the heating coil (24); 3. The electromagnetic induction cooking appliance according to claim 2, wherein the housing (29) and the casing (1) are made of metal.

4. a base member (8) that houses a control unit (5); The base member (8) is formed larger than the heating unit (3) and the measuring unit (4) in a plan view, 3. An electromagnetic induction heating cooker according to claim 2, wherein the lower part of the casing (1) is fixed to the side of the base member (8), and the upper part of the casing (1) surrounds the heating unit (3) and the measuring unit (4) from the sides.

5. 5. The electromagnetic induction cooking appliance according to claim 4, wherein the measuring unit (4) is supported from below by a base member (8).

6. A downwardly extending covering wall (37) is provided at the end of the top plate (2), 6. An electromagnetic induction cooking appliance according to claim 2, wherein the cover wall (37) covers the upper end of the casing (1) from the outside with a horizontal gap therebetween.

7. An operating unit (17) is provided on the front surface of the casing (1), A gutter (38) running from side to side is provided at the front end of the top plate (2), 6. An electromagnetic induction cooking appliance according to claim 2, wherein liquid holes (39) for allowing liquid to flow down are formed at both ends of the bottom wall of the trough (38).

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