JP3975983B2 - Electromagnetic heating cooker - Google Patents

Description

  The present invention relates to an electromagnetic heating cooker used in general homes and offices.

  Conventionally, in this type of electromagnetic heating cooker, the heating surface and the operation unit are separated, and the operation surface is formed of a synthetic resin or the like instead of glass (see, for example, Patent Document 1).

Further, the operation part is tilted forward, and the operation part is formed of a synthetic resin or the like (for example, see Patent Document 2).
Japanese Patent Laid-Open No. 63-236291 (FIGS. 2, 3, and 4) Japanese Patent Laid-Open No. 3-114185 (FIG. 2)

  However, in the conventional configuration, the operation unit and the heating surface are separated from each other, and it is difficult to adjust the heating while watching the food.

  The operation surface may be formed of normal glass without being formed of heat-resistant glass, but is formed of heat-resistant glass because it is integrated with the top plate.

  In addition, since the operation unit is formed of a synthetic resin or the like different from the top plate, the operation feeling of the operation unit varies depending on the product due to the occurrence of sink or distortion of the synthetic resin.

  In addition, since the operation part is formed on the same surface as the top plate, the hot pan or frying pan being heated touches the operation part and becomes hot during operation, or the frying pan unexpectedly operates the operation part during operation. You may touch it.

  The present invention solves the above-mentioned conventional problems, and since the operation part is formed of a glass plate, the structure of the operation part is simplified and the accuracy of the parts is not required. The top plate is made of heat-resistant glass because it must be cooked at a high temperature such as a pan or a frying pan. On the other hand, since the operation part does not reach a high temperature, it can be formed of general glass. When the top plate and the operation part are integrated, the operation part must also be formed of heat-resistant glass, and the material glass used is expensive heat-resistant glass, but general glass can be used by separating. In addition, since the operation unit and the top plate are separated, the processing is performed while transporting a small operation unit in terms of processing, and simple processing is possible. Furthermore, since the operation unit is tilted forward, it is easy to operate, and the operation unit does not reach an abnormally high temperature without a hot pan or pan hitting the operation unit.

Moreover, the electromagnetic cooking device of the present invention includes a top plate that forms a heating surface formed of a heat-resistant glass plate, a top frame that is formed by pressing to hold the outer periphery of the top plate substantially horizontally, and the bottom of the top plate an electromagnetic heating device provided, and an operating portion which is fixed to part of the top frame while being formed with a glass plate of any glass material, the contact portion on the upper surface of the operating portion is provided on the operating A power receiving portion is provided at a position facing the contact portion on the lower surface of the portion, and a connection portion is provided for electrically connecting the power receiving portion and the operation board, and the operation portion is positioned on the front surface of the main body and the top frame part separated from the heating surface by bending and of those where the structure is Mae傾.

  As a result, the operation feeling of the operation unit can be processed uniformly, and since only the operation unit can be transported and handled during processing, it is easy to process. Moreover, since the operation part can be comprised with general glass, it is economical.

  In addition, when the product is used, the angle at which the operation unit is viewed is substantially perpendicular to the operation unit, making it easier to see the operation unit. Moreover, a hot pot, a frying pan, etc. do not hit an operation part directly, and an operation part does not become high temperature.

  The electromagnetic cooking device of the present invention can prevent operability from being uneven due to variations in parts, and can provide a uniform and good operability.

  In addition, when the product is used, the angle at which the operation unit is viewed is substantially perpendicular to the operation unit, making it easier to see the operation unit. Moreover, a hot pot, a frying pan, etc. do not hit an operation part directly, and an operation part does not become high temperature.

According to a first aspect of the present invention, there is provided a top plate that forms a heating surface made of a heat-resistant glass plate, a top frame that is formed by pressing to hold the outer periphery of the top plate substantially horizontally, and an electromagnetic device provided at a lower portion of the top plate. a heating device, and an operating portion which is fixed to part of the top frame while being formed with a glass plate of any glass material, the contact portion provided on the upper surface of the operation portion, wherein the lower surface of the operating portion the power receiving portion provided facing the contact portion position, with a connection unit for electrically connecting the operation board and the power receiving portion, the operation portion includes bending part of the top frame with is positioned in front of the main body with the construction in which Ru is separated and Mae傾and the heating surface Te, reduced compared with the case where the size of the glass plate the operating portion to form an operating portion can be formed separately from the top plate is formed integrally with the top plate Processing becomes easier, so if the dimensions in the shape Tsukiganaku can be processed, the appearance may be an operating unit top plate to obtain the operating portion of the uniform operational feeling no variation in operational feeling for the user in being able to configure similar to that formed integrally.

  In addition, when the product is used, the angle at which the operation unit is viewed is substantially perpendicular to the operation unit, making it easier to see the operation unit. Moreover, a hot pot, a frying pan, etc. do not hit an operation part directly, and an operation part does not become high temperature.

  In the second aspect of the invention, the connection portion is formed by molding and processing conductive foamed rubber, so that an electromagnetic heating cooker having good operability for the user can be obtained.

  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 shows a sectional view of an electromagnetic heating cooker according to the first embodiment of the present invention.

  In FIG. 1, the top plate 11 located on the upper part of the main body 10 is made of heat-resistant glass having a thickness of 4 mm. This heat-resistant glass has a coefficient of thermal expansion of almost 0 and is a material that can withstand a thermal shock of 400K. The outer periphery of the top plate 11 is held by a top frame 12 formed by pressing a stainless steel plate. The top frame 12 and the top plate 11 are bonded with a silicon-based adhesive along the outer periphery of the top plate 11 along the hole 13 provided in the top frame 12, and the top plate 11 and the top frame 12 are bonded in a watertight manner. .

  The hole 13 is provided with a step 14 in a concave shape about 2 mm below the top surface of the top frame 12. The top plate 11 is bonded to the lower surface of the stepped portion 14.

  The operation portion 15 is fixed to the lower surface of the inclined concave portion 16 having a concave shape of about 2 mm substantially in parallel with the outer surface formed on the front side of the product of the top frame 12 by water-tightly adhering the outer periphery with a silicon-based adhesive.

  The operation unit 15 is made of borate glass having a thickness of 4 mm. The operation unit 15 is disposed at the front of the main body 10 and is inclined forward of the product. An operation button 17 that forms a contact portion is formed on the upper surface of the operation portion 15 by printing. The operation buttons 17 are printed and baked with a paint containing a metal oxide. A power receiving unit 18 having a larger area than the operation button 17 is formed on the lower surface of the operation unit 15 at a position facing the operation button 17 by printing and baking a paint containing a metal oxide as a component.

  The operation button 17 that forms the contact portion and the power receiving unit 18 form a capacitor with the operation unit 15 formed of glass as an insulator interposed therebetween.

One end of a substantially S- shaped connecting portion 19 formed by pressing phosphor bronze having a thickness of 0.3 mm and having elasticity is electrically connected to the power receiving portion 18 by being urged by its own elasticity. . The connecting portion 19 has a substantially S- shaped curved portion 20 in contact with the power receiving portion 18 and is soldered at the other end to an operation board 21 positioned below the operation portion 15 and positioned substantially parallel to the operation portion 15. . At the other end, a hooking portion 23 is formed by press working in order to prevent removal when the operation board 21 is set in the insertion hole 22.

  Here, the operation board 21 is connected to the power receiving unit 18, and can detect whether the operation button 17 is grounded or not by sending a pulse signal or an AC signal.

  When the operation board 17 touches the operation button 17 with a person's finger, the human body becomes a ground wire and the operation button 17 is grounded. At this time, it is determined whether or not the operation button 17 is grounded while the operation board 21 measures the capacitor formed by the operation button 17 and the power receiving unit 18.

  The operation board 21 is fixed to a pair of fixing brackets 24 welded to the lower surface of the top plate 11. As a result, the operation unit 15 is directly fixed to the top frame 12, while the operation board 21 is fixed to the top frame 12 via the fixing bracket 24, and positioning can be performed between the minimum number of components, so that the position of the component is not displaced. Get smaller.

  A suction port 25 is provided on the rear upper surface of the ceiling frame 12 so as to be horizontally elongated by one step from the upper surface, and communicates with the suction port 27 of the cooling fan 26. The intake port 25 is covered with a filter 28. The cooling fan 26 supplies the sucked cool air into the main body 10. The supplied cool air is supplied to the upper power control board 29 and the lower power control board 30 to cool the control components that control particularly a large current.

  The right heating coil 31 and the left heating coil 32 are located below the top plate 11 in the main body 10, and a temperature detection sensor 33 that detects the temperature of the top plate 11 is provided at the center. The upper power control board 29 and the right heating coil 31, and the lower power control board 30 and the left heating coil 32 constitute an electromagnetic heating device 34, respectively. A heating mark 35 is printed in a circular ring shape serving as a guide for placing a pan or a frying pan on the portion of the top plate 11 positioned above each of the right heating coil 31 and the left heating coil 32.

  The shell 36 forms the main body 10 by fitting the top frame 12 to the upper part.

  A liquid crystal display device 37 is soldered to the operation board 21. The liquid crystal display device 37 is illuminated from the lower surface with a backlight 38 so that it can be easily seen from the upper surface of the product.

  A roaster 39 is disposed on the left side of the main body 10. The roaster door 40 is configured to be opened and closed by a handle 41.

  The operation unit 15 includes units for controlling the right heating coil 31, the left heating coil 32, and the roaster 39, and each control is performed by the operation button 17. All the operation buttons 17 have the same configuration. The display is performed by the liquid crystal display device 37 for each unit.

  The main power supply is opened and closed by a power switch 42.

  In FIG. 3, the shielding printing unit 43 is processed so as to cover a part of the power receiving unit 18 on the lower surface of the operation unit 15. The shielding printing unit 43 is printed after the printing process of the power receiving unit 18 and is baked again. The shield printing unit 43 further forms a display window 44 of the liquid crystal display device 37. Only the display unit 45 of the liquid crystal display device 37 can be seen from the display window 44.

  The operation portion 15 is positioned by a claw portion 46 provided at the end of the inclined recess 16. The fixing bracket 24 is configured to be positioned with a convex portion 47 on the lower surface side of the top frame 12 of the inclined concave portion 16. Further, the operation board 21 is configured to be positioned by the positioning claw portion 48 of the fixing bracket 24. Accordingly, the operation portion 15, the fixing bracket 24, and the operation substrate 21 are positioned based on the inclined recess 16.

  About the electromagnetic heating cooker comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, after the power switch 42 is operated to enable energization, an object to be heated (not shown) such as a pan or a frying pan is placed on the right heating mark 35 on the top plate 11. The operation button 17 of the operation unit 15 is pressed to drive the power control board 29 to drive the right heating coil 31. The object to be heated (not shown) is heated by the electromagnetic heating device 34 to enable cooking. Further, the operation button 17 is pressed to set the temperature detection sensor 33 and the heating condition, and the operation state is displayed on the display unit 45 of the liquid crystal display device 37 in the vicinity of the operation button 17.

  When cooking is completed, the operation of the electromagnetic heating device 34 is stopped by the operation button 17. The power switch 42 is operated to stop energization.

  As described above, in the present embodiment, the operation unit 15 is provided with the operation button 17 as a contact surface on the upper surface of the glass plate, the power receiving unit 18 is provided on the lower surface of the operation unit 15, and the power receiving unit 18 and the operation substrate 21. By providing the connection portion 19 that is electrically connected to each other, a uniform operation feeling can be obtained regardless of which operation button 17 of the operation portion 15 is operated. In addition, there is no variation in operability between products.

  In the present embodiment, the operability of the operation buttons 17 is good by attaching the operation unit 15 to the inclined recess 16, and the liquid crystal display device 37 can be easily viewed because the operation unit 15 is inclined.

(Embodiment 2)
FIG. 4 is a partial cross-sectional view of the electromagnetic heating cooker according to the second embodiment of the present invention. Main body 10, top plate 11, top frame 12, hole portion 13, step portion 14, operation portion 15, inclined recess 16, operation button 17, power receiving portion 18, operation substrate 21, fixing bracket 24, air inlet 25, cooling fan 26 , Inlet 27, filter 28, upper power control board 29, lower power control board 30, right heating coil 31, left heating coil 32, temperature detection sensor 33, electromagnetic heating device 34, heating mark 35, outer shell 36, liquid crystal display device 37, backlight 38, roaster 39, roaster door 40, handle 41, power switch 42, shield printing unit 43, display window 44, display unit 45, claw unit 46, convex portion 47, and positioning claw unit 48 according to the first embodiment. Are the same shape and function, and use the same symbols and names.

Connection 50 is molding a conductive foamed rubber. The power receiving unit 18 and the operation board 21 are electrically connected by being bonded and fixed on the operation board 21.

  In the present embodiment, the operation unit 15 is provided with an operation button 17 that is a contact surface on the upper surface of the glass plate, and a power reception unit 18 is provided on the lower surface of the operation unit 15 so that the power reception unit 18 and the operation substrate 21 are electrically connected. By providing the connected connection part 50, even if any operation button 17 of the operation part 15 is operated, a uniform operation feeling can be obtained. In addition, there is no variation in operability between products.

  In the present embodiment, the operability of the operation buttons 17 is good by attaching the operation unit 15 to the inclined recess 16, and the liquid crystal display device 37 can be easily viewed because the operation unit 15 is inclined.

( Reference form 1 )
5 and the 6 is a partial cross-sectional view of an electromagnetic cooking device according to the first referential embodiment of the present invention. Main body 10, hole portion 13, step portion 14, operation button 17, power receiving portion 18, connection portion 19, bending portion 20, operation board 21, insertion hole 22, hook portion 23, fixing bracket 24, air inlet 25, cooling fan 26 , Inlet 27, filter 28, upper power control board 29, lower power control board 30, right heating coil 31, left heating coil 32, temperature detection sensor 33, electromagnetic heating device 34, heating mark 35, outer shell 36, liquid crystal display device 37, backlight 38, roaster 39, roaster door 40, handle 41, power switch 42, shield printing unit 43, display window 44, display unit 45, claw unit 46, convex portion 47, and positioning claw unit 48 according to the first embodiment. Are the same shape and function, and use the same symbols and names.

  A heating mark 35 is printed on the top plate 60, and a heating surface 61 is formed including the vicinity of the heating mark 35. An operation portion 62 is formed on the front side of the top plate 60 using a part of the top plate 60. The outer periphery of the top plate 60 is water-tightly bonded to the step portion 14 provided in the hole portion 13 of the top frame 63 with a silicon-based adhesive. A separation portion 64 that is a part of the top frame 63 is provided between the operation portion 62 of the top plate 60 and the heating mark 35. As for the top plate 60 and the top frame 63, the top frame 63 is positioned at the upper portion by the amount of the step portion 14. The separation unit 64 has the same height as the top surface 65 of the top frame 63 and extends the top surface 65 inward from the top frame 63 to separate the operation unit 62 and the heating surface 61. Therefore, the upper surface 65 of the separation portion 64 and the upper surface 65 of the top frame 63 are the same surface, and are higher than the operation portion 62 by the height of the step portion 14 from the top plate 60. Regarding the formation of the separation portion 64, the top frame 63 can be processed at the same time as the press working, and the material is also economical because the discarded material of the hole portion 13 is used.

  About the electromagnetic heating cooker comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, after the power switch 42 is operated to enable energization, an object to be heated (not shown) such as a pan or a frying pan is placed on the heating mark 35 on the right side of the heating surface 61 on the top plate 60. The operation button 17 of the operation unit 62 is pressed to drive the power control board 29 to drive the right heating coil 31. The object to be heated (not shown) is heated by the electromagnetic heating device 34 to enable cooking. Further, the operation button 17 is pressed to set the temperature detection sensor 33 and the heating condition, and the operation state is displayed on the display unit 45 of the liquid crystal display device 37 in the vicinity of the operation button 17.

  When cooking is completed, the operation of the electromagnetic heating device 34 is stopped by the operation button 17. The power switch 42 is operated to stop energization.

As described above, in the present reference, the operation unit 62 is provided an operation button 17 which is a contact surface on the upper surface of the glass plate, the power receiving portion 18 provided on the lower surface of the operation unit 62, the power receiving unit 18 and the operation board 21 By providing the connection portion 19 that is electrically connected to each other, it is possible to obtain a uniform operational feeling regardless of which operation button 17 of the operation portion 62 is operated. In addition, there is no variation in operability between products.

Further, in the present reference embodiment, by forming the separation portion 64 between the operation unit 62 and the heating surface 61, the heated on the heating surface 61 so separating portion 64 at a position higher than the top plate 60 is positioned Even if an object (not shown) moves on the heating surface 61 and rides on the operation unit 62, the operation unit 62 does not come into direct contact with the operation unit 62 by climbing on the separation unit 64. Absent.

  As described above, the electromagnetic heating cooker according to the present invention includes a contact portion on the upper surface of the operation portion formed of a glass plate, and a power reception portion at a position facing the contact portion on the lower surface of the operation portion. By providing a connection portion that is electrically connected to the operation portion, the operation feeling of the operation portion can be made uniform, so that it can be applied to uses such as an operation portion that requires watertightness.

Sectional drawing of the electromagnetic heating cooker in Embodiment 1 of this invention The perspective view of the electromagnetic heating cooker in Embodiment 1 of this invention The fragmentary sectional view of the operation part of the electromagnetic heating cooker in Embodiment 1 of this invention Partial sectional drawing of the operation part of the electromagnetic heating cooker in Embodiment 2 of this invention The perspective view of the electromagnetic heating cooker in the reference form 1 of this invention The fragmentary sectional view of the operation part of the electromagnetic heating cooker in the reference form 1 of this invention

Explanation of symbols

11 Top plate 12 Top frame 15 Operation part 17 Operation button (contact part)
DESCRIPTION OF SYMBOLS 18 Power receiving part 19 Connection part 34 Electromagnetic heating apparatus 50 Connection part 60 Top plate 61 Heating surface 62 Operation part 63 Top frame 64 Separation part

Claims (2)

A top plate that forms a heating surface formed of a heat-resistant glass plate, a top frame that is formed by pressing to hold the outer periphery of the top plate substantially horizontally, an electromagnetic heating device provided at the bottom of the top plate, and an arbitrary and an operating portion which is fixed to part of the top frame while being formed by a glass plate of a glass material, a contact portion provided on the upper surface of the operating portion, facing to the contact portion of the lower surface of the operation portion position the power receiving unit is provided, comprising a connecting portion for electrically connecting the operation board and the power receiving portion, the operation portion is separated from the heating surface by bending a part of the top frame with is positioned in front of the main body And an electromagnetic heating cooker that is configured to tilt forward. The electromagnetic heating cooker according to claim 1, wherein the connecting portion is formed by molding conductive foam rubber.

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