JP2008177010A - Heating cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heating cooker which prevents troubles due to invasion of water into a main body and is improved further in reliability with excellent design performance. <P>SOLUTION: The top plate 2 which is arranged on a top face of a main body 1 and mounts a cooking appliance is clipped by a top frame 3 covering its outer periphery and an under frame 16 to support the top plate 2 from the lower part, and the under frame 16 is connected to the main body 1 to arrange the top plate 2 on the top face of the main body 1. Thereby, the force applied on the top frame 3 and the top plate 2 can be supported also by the under frame 16, and the contact face 24 of the top plate 2 and the under frame 16 can be utilized as an adhesive face. Therefore, water-tightness and adhesion strength owing to increase of the adhesion portion are improved and troubles due to invasion of water into the main body 1 is prevented to increase further reliability, and since a connecting part with the main body 1 is not necessary for the top frame 3 being an outside appearance face, excellent design performance is obtained. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a cooking device such as a stationary type or a built-in type induction heating cooking device that is used in a kitchen of a general household or a commercial kitchen.

Conventionally, the top plate for mounting a cooking utensil in this type of induction heating cooker has a top frame that covers the outer periphery of the top plate, especially for stationary types, due to restrictions such as the internal space of the product. It is common to attach directly to the top surface of the main body, and the top plate and the top frame are bonded 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, the bonding portion cannot withstand the force and a gap is generated. In that case, water spilled on the top plate from the gap may enter the main body and reach the internal control circuit to cause a failure.

  The present invention solves the above-described conventional problems, and an object thereof is to provide a heating cooker that prevents failure due to water intrusion into the main body, further enhances reliability, and is excellent in design.

  In order to solve the above-described conventional problems, in the cooking device of the present invention, the top plate placed on the top surface of the main body, on which the cooking utensils are placed, supports the top frame covering the outer periphery and the top plate from below. In addition to being sandwiched by the underframe, the underframe is fastened to the main body, and the top plate is disposed on the top surface of the main body.

  As a result, the force due to the weight of cooking utensils, etc. applied to the top frame and the top plate can be received even by the under frame, and the abutment surface between the top plate and the under frame can also be used as an adhesive surface. The water tightness and adhesive strength due to the increase in the water content are also improved, the failure due to the intrusion of water into the main body is prevented, the reliability is further improved, and the top frame which is the appearance surface does not need to be provided with the fastening portion with the main body Therefore, a cooking device with excellent design can be realized.

  The cooking device of the present invention can prevent a failure due to water intrusion into the main body, further improve the reliability, and provide a cooking device excellent in design.

  According to a first aspect of the present invention, there is provided a main body, a top plate arranged on the top surface of the main body, on which cooking utensils are placed, heating means provided below the top plate, a power supply circuit for the heating means, and an external operation. A control circuit that controls the operation of the device, and the top plate is sandwiched between a top frame that covers an outer periphery of the top plate and an under frame that supports the top plate from below, and the under frame is fastened to the main body. The cooking device has a top plate disposed on the top surface of the main body. As a result, the force due to the weight of cooking utensils, etc. applied to the top frame and the top plate can be received even by the under frame, and the abutment surface between the top plate and the under frame can also be used as an adhesive surface. The water tightness and adhesive strength due to the increase in the water content are also improved, the failure due to the intrusion of water into the main body is prevented, the reliability is further improved, and the top frame which is the appearance surface does not need to be provided with the fastening portion with the main body. Therefore, a cooking device with excellent design can be realized.

  According to the second invention, in particular, in the first invention, a groove for guiding intrusion water from the gap between the top frame and the top plate is formed in the peripheral portion of the underframe that faces the vicinity of the outer edge of the top plate. Even if water intrudes from the gap between the top frame and the top plate, the infiltrated water can be guided and accumulated on the under frame to prevent downward dripping.

  In the third invention, in particular, in the second invention, even if a large amount of water infiltrates by extending the groove to the outer edge of the underframe in at least one of the grooves for guiding intrusion Water can be guided through the groove and guided to the outer edge of the underframe, and can be dropped to a place where there is no substantial problem even if it is dropped downward in the main body, and finally discharged out of the main body.

  According to a fourth aspect of the present invention, in particular, in the first aspect, the operation unit having the control circuit is fitted to the top frame from the inside of the main body, and the under frame and the operation unit are fastened on the operation surface formed on the top frame. The operation surface unit covers the top of the operation unit, and the panel sheet is attached to the operation surface, so that the under frame and the operation unit can be fastened to the top frame, and the fastening part can be hidden by the panel sheet, so the appearance quality is improved. There is no loss.

  In the fifth invention, in particular, in the fourth invention, by fastening the operation unit and the under frame to the top frame together, it is possible to reduce the number of fastening parts of other members to the top frame. The reduction of the required area can be minimized, the visibility is hardly impaired, and the visibility and ease of use of the operation unit can be maintained.

  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 to 5 illustrate an induction heating cooker as a heating cooker according to an embodiment of the present invention.

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

  An operation unit, which will be described later, is disposed inside the operation unit 4 formed on the top frame 3.

  In the present embodiment, a stationary induction heating cooker used in a kitchen or a commercial kitchen is shown, and the main body 1 is installed on the cabinet.

  In FIG. 2, two induction heating coils 5, which are heating means, are provided close to the top plate 2. Each induction heating coil 5 is housed in a coil case 6 and 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 signal input unit for controlling the operation of the device by an external operation and a display unit for displaying the operation state of the device. (See FIG. 5 described later) and the like are stored.

  In addition to the top plate 2 and the 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 14 on the front side. The power supply cover 15 and the like are housed.

  Here, in FIGS. 2 and 3, the upper and lower ends of the outer periphery of the top plate 2 are sandwiched between the top frame 3 and an under frame 16 that is arranged 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 under frame 16 extends in a substantially vertical direction to form a plurality of arm portions 19, and the arm portions 19 are provided with burring holes 20 for screw tightening. Holes 21 are formed at opposite locations of the side plates 10 and 11, and the underframe 16 is fastened to a plurality of locations of the side plates 10 and 11 via the holes 21 by screws 22.

  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 force due to the weight of cooking utensils or the like with the under frame 16, the contact surface 24 between the top plate 2 and the under frame 16 can also be used as an adhesive surface. The adhesive strength is also improved, and it is not necessary to provide a fastening portion with the main body 1 on the top frame 3 which is the appearance surface, and an induction heating cooker excellent in design can be realized.

  Here, 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.

  In addition, a guide groove 23 that protrudes downward is formed in a peripheral portion of the underframe 16 that is opposed to the vicinity of the outer edge of the top plate 2, and as shown in FIG. When the adhesive 17 is not sufficiently bonded or when the contact surface 24 of the top frame 3 with the top plate 2 is deformed and the gap becomes large, water spilled on the top plate 2 , It enters from that portion, but is captured by the guide groove 23. Thereby, since it is possible to prevent the intrusion water from reaching the power supply circuit 7 and the like disposed inside the main body 1, it is possible to prevent a failure of the power supply circuit 7 and the like.

  Further, at least one location of the intruding water guiding groove 23 is formed with a discharge port 25 extending the groove to the outer edge of the under frame 16, and even if water is dropped below this position, the power circuit 7 is taken into consideration so that it can be dropped in a place where there is no substantial trouble, and finally it can be discharged out of the main body 1.

  FIG. 5 shows a configuration around the operation unit 4 in the present embodiment, and includes a control circuit 26 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. The operation unit 9 housed in the case 27 is disposed in the operation unit 4.

  The operation surface 28 of the top frame 3 is a recess, and a panel sheet 34 is adhered thereto. The panel sheet 34 has an embossed button 31 that is formed in the operation unit 9 and bends up and down at a position opposite to the actuator unit 30 for transmitting external pressure to the switch 29 of the control circuit 26. A transparent window 33 is provided at a position facing the display unit 32 of the control circuit 26.

  The operation unit 9 is attached to the top frame 3 by fixing a plurality of bosses 38 formed on the case 27 on the operation surface 28 of the top frame 3 with screws 35 from the upper side (surface side). At this time, a plurality of arm portions 36 are formed in the horizontal direction in front of the under frame 16, and these arm portions 36 are fastened together with the operation unit unit 9 through a hole portion 37 provided in the arm frame 36. 3 is fixed. After this fastening is completed, the panel sheet 34 is attached to the operation surface 28 of the top frame 3.

  Thereby, the fastening of the top frame 3 and the under frame 16 can be made stronger and the fastening portion can be hidden by the panel sheet 34, so that the appearance quality is not impaired. Further, by fastening the underframe 16 and the operation unit 9 together, the number of fastening parts of other members to the top frame 3 can be reduced, so that the reduction of the area required for operation / display can be minimized. The visibility of the operation unit 4 can be maintained with almost no loss of visibility.

  In addition, in this Embodiment, although the induction heating cooker was illustrated as a heating cooker, it is not restricted to this, If it is a heating cooker provided with the top plate for cooking appliance mounting, it employ | adopts suitably. It is something that can be done.

  As described above, the heating cooker according to the present invention can prevent a failure due to water intrusion into the main body, further improve the reliability, and provide a cooking device excellent in design, The present invention can be applied not only to induction heating cookers but also to heating cookers in general.

The perspective view which shows the external appearance of the heating cooker in embodiment of this invention Exploded perspective view showing main components of the cooking device The expanded sectional view which shows the principal part of the heating cooker The expanded sectional view which shows the malfunction state of the principal part of the heating cooker The exploded perspective view which shows the structure around the operation part of the heating cooker

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body 2 Top plate 3 Top frame 4 Operation part 5 Induction heating coil (heating means)
7 Power supply circuit 9 Operation unit 16 Under frame 17, 18 Adhesive 23 Guide groove 24 Contact surface 25 Discharge port 26 Control circuit 27 Case 34 Panel sheet

Claims (5)

The main body, the top plate placed on the top surface of the main body, on which cooking utensils are placed, the heating means provided below the top plate, the power supply circuit of the heating means, and the operation of the device are controlled by external operation The top plate is sandwiched between a top frame that covers the outer periphery of the top plate and an under frame that supports the top plate from below, and the under frame is fastened to the main body, and the top plate is attached to the main body. Cooking device placed on the top of the. The cooking device according to claim 1, wherein a groove for guiding intrusion water from a gap between the top frame and the top plate is formed in a peripheral portion of the under frame that faces the vicinity of the outer edge of the top plate. The cooking device according to claim 2, wherein the groove portion is extended to the outer edge end portion of the underframe at at least one portion of the groove portion for guiding intrusion water. An operation unit having a control circuit is fitted to the top frame from the inside of the main body, and the under frame and the operation unit are fastened by an operation surface formed on the top frame. The operation surface covers the upper part of the operation unit and covers the panel. The cooking device according to claim 1, wherein a sheet is attached. The cooking device according to claim 4, wherein the operation unit and the underframe are fastened together to the top frame.