JP5076737B2 - Induction heating cooker - Google Patents

Description

  The present invention relates to a stationary or built-in induction heating cooker used in a general household kitchen, a commercial kitchen, or the like.

Conventionally, the installation configuration of the top plate in this type of induction heating cooker, especially for the stationary type, has a cooking utensil arranged on the top surface of the main body due to restrictions such as the internal space of the product In general, the top plate to be attached is directly attached to the top frame covering the outer periphery of the top plate, and most of the fixing methods are to fix both with an adhesive (for example, see Patent Document 1).
JP 2004-327112 A

  However, in the conventional configuration, when the gap between the top plate and the top plate is insufficient, or when the water tightness is obtained at the initial stage, the adhesive strength is insufficient. When the weight of the cooking utensil filled with ingredients is repeatedly applied to the adhesive part and it becomes impossible to withstand that force, a gap is generated, and water spilled on the top plate enters the main body from the gap. Thus, there is a problem that it may reach an internal control circuit and cause a failure.

  The present invention solves the above-described conventional problems, and prevents induction and the like due to water intrusion into the main body, further enhances reliability, and is excellent in robustness, assembly, and design. The purpose is to provide.

In order to solve the above-described conventional problems, an induction heating cooker according to the present invention includes a main body, a top plate on which a cooking device to be heated disposed on the top surface of the main body is placed, and a lower side of the top plate. An induction heating coil, a power supply circuit for supplying high-frequency power to the induction heating coil, a signal input unit for controlling the operation of the device, including energization of the induction heating coil by an external operation, and a device A control circuit having a display unit or the like for displaying an operation state; an operation unit unit that substantially stores the control circuit; a top frame that covers an outer periphery of the top plate; and an under frame that supports the top plate from below. By sandwiching the top plate, and extending the outer peripheral end of the under frame in a substantially vertical direction to form an arm portion, a side plate forming a side shell of the main body or a rear plate forming a rear shell of the main body home At least one of fastening between at least one of the top frame and the top plate or between the under frame and the top plate with an adhesive, and fastening to at least one of the under frame, While extending or expanding the groove portion for applying the adhesive to the vicinity of the arm portion , the operation unit unit is fitted from the inside into the top frame with the operation surface facing upward in front of the top plate, The under frame extends forward and is interposed between the top frame and the upper surface of the operation unit, and the top frame and the operation unit are fastened .

By this, the top frame is sandwiched between the top frame that covers the outer periphery of the top plate and the under frame that supports the top plate from below. In addition to being able to receive force even with the under frame, the contact surface between the top plate and the under frame can also be used as an adhesive surface, and further, by extending or expanding the groove part where the adhesive is applied to the vicinity of the arm part In addition, the watertightness and adhesive strength due to the increase in the adhesion part can be improved, the robustness can be further enhanced, and the top frame which is the appearance surface does not need to be provided with a fastening portion with the main body, so the design is excellent in design. A cooking device can be realized. Further, the rigidity of the front portion of the top frame, that is, the operation unit unit mounting portion can be increased.

According to the induction heating cooker of the present invention, it is possible to prevent a failure due to water intrusion into the main body, to further improve reliability, and to improve robustness, assemblability, and design. Further, the rigidity of the front portion of the top frame, that is, the operation unit mounting portion can be increased.

1st invention supplies a high frequency electric power to a main body, the top plate which mounts the to-be-heated cooking appliance distribute | arranged to the top | upper surface of the main body, the induction heating coil provided under the top plate, and the induction heating coil A control circuit having a power supply circuit, a signal input unit for controlling the operation of the device, such as energization of the induction heating coil by an external operation, and a display unit for displaying the operation state of the device, and the control circuit A top frame that covers the outer periphery of the top plate and an under frame that supports the top plate from below, and sandwiches the outer end of the under frame in a substantially vertical direction. The arm portion is extended to be fastened to at least one of the side plate forming the side surface of the main body and the rear plate forming the rear surface of the main body, and between the top frame and the top plate, or the under plate. Between the over arm and the top plate, the at least one bonded and fixed with an adhesive, the underframe, together with the extended or extended groove for applying adhesive to the arms near the operation section unit, wherein The operation surface is faced upward in front of the top plate and is fitted into the top frame from the inside, and the under frame is extended forward and interposed between the top frame and the upper surface of the operation unit unit. When the top frame and the operation unit unit are fastened , the top frame and the top plate are sandwiched between the top frame that covers the outer periphery of the top plate and the under frame that supports the top plate from below. In addition to being able to receive the force due to the weight of cooked utensils, etc. applied to the adhesive part of the underframe, the top plate and the underboard The contact surface with the tape can also be used as an adhesive surface. Furthermore, by extending or expanding the groove portion where the adhesive is applied to the vicinity of the arm portion, the water tightness and adhesive strength due to the increase in the adhesive portion are improved, and it is robust. Therefore, it is not necessary to provide a fastening portion with the main body on the top frame which is the appearance surface, so that it is possible to realize an induction heating cooker excellent in design. Further, the rigidity of the front portion of the top frame, that is, the operation unit unit mounting portion can be increased.

A second invention is, in particular, in the first invention, by the arm of the underframe is extended groove for bonding to the bending portion near the bent vertically downward with respect to the vertical direction of the force applied to the arm portion Thus, the deflection of the horizontal portion of the arm portion is eliminated, and only the force in the pulling direction or the compressing direction of the substantially vertical portion is obtained, so that the rigidity is further improved.

A third invention is, in particular, in the first invention, and the top frame, the said underframe, and sandwich the top plate, enters into the operation section unit to the top frame, the under and the top frame By fastening the frame with the operation unit unit above or near the upper part, the rigidity of the operation unit unit mounting portion can be further increased.

A fourth invention is, in particular, in the third invention, by the said top frame the underframe, concluded in the vicinity of the fastening portion between the top frame and the operation section unit, aggregation of the various fastening portion Can save space.

Panel A fifth invention is, in particular, in the first or third invention, the said underframe and the top frame, covering the operation section unit top has a transparent window portion and the operation button unit or the like for display Fastening the top frame and the under frame can be made stronger by fastening on the sheet attachment surface, and the fastening portion can be hidden by the panel sheet, so that the appearance quality is not impaired.

A sixth invention is particularly, in the first invention, the substantially vertical surface of the arm portion of the underframe, to form an overhang surface outwardly convex an inclined surface to rise, the side plate on the projecting plane or By forming the fastening part with the rear plate, the overhanging surface serves as a guide when setting the top unit consisting of the top frame, underframe, top plate, operation unit, etc. to the main body, so that the assembling property is improved. .

  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. Note that the order in which the embodiments are described may differ from the order of the inventions described above.

(Embodiment 1)
FIG. 1 shows the appearance of an induction heating cooker according to the first embodiment of the present invention. Hereinafter, it demonstrates using drawing.

  On the top surface of the main body 1, a top plate 2 on which the cooking utensils to be heated are placed. The top plate 2 is made of a material that is not overheated by electromagnetic induction, such as highly heat-resistant glass. The top frame 3 surrounds the outer periphery of the top plate 2 and constitutes part or almost all of the top surface of the main body. The top frame 3 sufficiently withstands the heat from the object to be heated that is transmitted through the top plate 2 and is an external component. It is made of a metal such as stainless steel or enameled steel plate that looks good and is resistant to corrosion.

  An operation unit 9 and the like which will be described later are disposed inside the operation unit 4 formed on the top frame 3.

  FIG. 2 is an exploded perspective view showing main components of the induction heating cooker according to the first embodiment of the present invention. However, components that are not necessary for the description of the embodiment are omitted even if they are main components.

  In FIG. 2, an induction heating coil 5 is provided close to the bottom of the top plate 2. The induction heating coil 5 is housed in a coil case 6 and is held at a predetermined position in the main body 1. High frequency power is supplied to the induction heating coil 5 by the power supply circuit 7. The induction heating coil 5 and the power supply circuit 7 are cooled by the ventilation of the cooling fan 8.

  An operation unit 9 disposed below the operation unit 4 of the top frame 3 includes a control circuit having a signal input unit for controlling the operation of the device by an external operation, a display unit for displaying the operation state of the device, and the like. Is housed.

  In addition to the top plate 2 and top frame 3 on the top surface, the main body 1 has a right side plate 10 and a left side plate 11 on the left and right sides, a rear plate 12 on the rear side, and a roaster door 13 and a power switch 15 on the front side. The power supply cover 14 is accommodated.

  The top plate 2 is sandwiched between a top frame 3 and an under frame 16 that is disposed below the top plate 2 and supports the top plate 2.

  The vicinity of the outer periphery of the top and bottom of the top plate 2 and the top frame 3 and the under frame 16 are joined by adhesives 17 and 18, respectively, to maintain watertightness.

  An outer peripheral end portion of the underframe 16 extends in a substantially vertical direction, and an arm portion 19 is formed. The arm portion 19 is provided with a burring hole 20 for screw tightening. Holes 21 are formed at opposite positions of the side plates 10 and 11, and the underframe 16 is fastened to the side plates 10 and 11 via the holes 21 by the first screws 22.

  Here, the groove portion 23 for applying the adhesive 18 of the underframe 16 extends to the vicinity of the arm portion 19, and in this drawing, the groove portion 23 for bonding is particularly up to the bent portion 24 where the arm portion 19 bends vertically downward. Has been extended.

  With this configuration, the top plate 2 is sandwiched between the top frame 3 that covers the outer periphery of the top plate 2 and the under frame 16 that supports the top plate 2 from below, so that the top frame 3 and the top plate 2 are joined to each other. In addition to being able to receive the force due to the weight of the cooking utensil or the like with the under frame 16, the abutment surface between the top plate 2 and the under frame 16 can also be used as an adhesive surface, and further the groove portion 23 for applying the adhesive 18. By extending to the vicinity of the arm portion 19, the watertightness and the adhesive strength due to the increase in the adhesion portion can be improved and the robustness can be improved. In particular, the bonding groove 23 is extended to the bent portion 24 of the arm portion 19. Thus, with respect to the force in the vertical direction applied to the arm portion 19, the horizontal portion of the arm portion 19 is not deflected, and only the force in the pulling direction or the compression direction of the substantially vertical portion is obtained. With its rigidity is further improved, than is possible to realize an induction heating cooker with excellent design because even better not provided on the top frame 3 is an external surface engagement portion of the main body 1.

  In the present embodiment, the under frame 16 is fastened to the side plates 10 and 11, but it may be fastened to the rear plate 12 or both at the same time.

  FIG. 3 is an exploded perspective view showing the fastening structure of the main part in the first embodiment, and the operation unit unit 9 is arranged in the top frame 3 from the inside with the operation surface facing upward in front of the top plate 2. At this time, the underframe 16 is extended forward, and a part of the underframe 16 is interposed between the top frame 3 and the upper surface of the operation unit unit 9 to connect the top frame 3 and the operation unit unit 9 to the second frame. Fastened with screws 25. Thereby, the rigidity of the front portion of the top frame 3, that is, the operation unit unit 9 mounting portion can be increased.

  Further, the top frame 3 and the under frame 16 are fastened by the third screw 26 above the operation unit unit 9, whereby the rigidity of the operation unit unit 9 mounting portion can be further increased.

  Here, the fastening position of the top frame 3 and the under frame 16 is fastened in the vicinity of the fastening part between the operation unit 9 and the top frame 3, thereby consolidating various fastening parts and saving space. be able to.

  Furthermore, the top frame 3 and the under frame 16 are fastened with the attachment surface of the panel sheet 27 that has a transparent window portion for display, an operation button portion, and the like and covers the upper portion of the operation unit unit 9. The fastening of the under frame 16 can be made stronger and the fastening portion can be hidden by the panel sheet 27, so that the appearance quality is not impaired.

  4 and 5 show a cross-section of the fastening portion between the underframe 3 and the right side plate 10. The substantially vertical surface 28 of the arm portion 19 of the underframe 16 has an inclined surface at the rising and has a protruding protrusion outward. A surface 29 is formed, and a fastening portion with the right side plate 10 is formed on the projecting surface 29.

  As a result, the overhanging surface 29 serves as a guide during setting in the direction indicated by the arrow in FIG. 5 to the main body of the top unit comprising the top frame 3, the under frame 16, the top plate 2, the operation unit 9 and the like. It improves. The same applies to the left side plate 11.

  As described above, the induction cooking device according to the present invention can easily prevent intrusion water from reaching the electrical components inside the main body even when the watertightness around the top plate is insufficient, and is robust and easy to assemble. In addition, since the design and usability are not impaired, the present invention can be applied to the same configuration, that is, to all cooking devices having the outer periphery of the top plate surrounded by a frame.

The perspective view which shows the external appearance of the induction heating cooking appliance in Embodiment 1 of this invention The disassembled perspective view which shows the main components of the induction heating cooking appliance in Embodiment 1 of this invention The disassembled perspective view which shows the fastening structure of the principal part of the induction heating cooking appliance in Embodiment 1 of this invention. The expanded sectional view which shows the principal part of the induction heating cooking appliance in Embodiment 1 of this invention The expanded sectional view which shows the principal part of the induction heating cooking appliance in Embodiment 1 of this invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body 2 Top plate 3 Top frame 4 Operation part 5 Induction heating coil 7 Power supply circuit 9 Operation part unit 10 Right side plate 11 Left side plate 12 Rear plate 16 Under frame 17, 18 Adhesive 19 Arm part 23 (adhesion) Groove 24 (for arm) Bend 27 Panel sheet 29 Projection surface

Claims (6)

A main body, a top plate for placing a cooking utensil disposed on the top surface of the main body, an induction heating coil provided below the top plate, and a power supply circuit for supplying high frequency power to the induction heating coil A control circuit having a signal input unit for controlling the operation of the device, such as energization of the induction heating coil by an external operation, a display unit for displaying the operation state of the device, and the control circuit. A top frame that covers the outer periphery of the top plate, and an under frame that supports the top plate from below, and sandwiches the top plate, and the outer peripheral end of the under frame is substantially omitted. The arm portion is formed by extending in the vertical direction, and fastened to at least one of a side plate forming a side shell of the main body or a rear plate forming a rear shell of the main body, and the top frame. At least one of the space between the top plate and the under frame and the top plate is bonded and fixed with an adhesive, and the groove portion of the under frame to which the adhesive is applied extends to the vicinity of the arm portion. While extending or expanding , the operation unit is fitted into the top frame from the inside with the operation surface facing upward in front of the top plate, and the under frame extends forward to extend the top frame. An induction heating cooker in which the top frame and the operation unit unit are fastened with being interposed between the upper surface of the operation unit unit. Induction heating cooker of claim 1, wherein the arm portion is extended groove for bonding to the bending portion near the bent vertically downward of the under frame. And said top frame, the said underframe, and sandwich the top plate, enters into the operation section unit to the top frame, and concluded with the top frame and the under frame by the operation section unit upwards or upper vicinity The induction heating cooker according to claim 1 formed. Induction heating cooker according to claim 3, and the under frame and the top frame and enter into the vicinity of the fastening portion between the top frame and the operation section unit. And said underframe and said top frame, claim signed by joining the surface of the panel sheet covering the operation section unit top has a transparent window portion and the operation button unit or the like for displaying one or
3. The induction heating cooker according to 3 . In a substantially vertical plane of said arm portion of said underframe, claim 1 to form a convex protruding surface of the outer an inclined surface to rise, by forming a fastening portion of the side plate or the rear plate to the projecting surface The induction heating cooker described in 1.

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