JP2012243543A - Induction heating cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an induction heating cooker allowing easy work for arranging a coil base.SOLUTION: An induction heating cooker comprises: a top plate 2 covering an upper face of a body 7 disposed thereon; a heating coil 55 arranged in the body 7 and heating a pan to be placed on the top plate 2; a coil base 81 for fixing the heating coil 55; an approximate triangle support piece 82 having one side thereof common to an outer periphery of the coil base 81 and projecting toward the outer periphery of the coil base 81; a compression coil-spring 120 raising the support piece 82 from below to hold the heating coil 55 toward the top plate 2; and an approximate, fallen-U-shaped guide wall 112 having a vertical wall, and opening from an outer direction toward an approximately center direction relative to the coil base 81 so as to surround the support piece 82.

Description

  The present invention relates to an induction heating cooker incorporated in a kitchen.

  Conventionally, this type of induction heating cooker is a spring provided in the main body so that the heating coil on the bottom of the heated object placed on the top plate placed on the upper surface of the main body and the heating coil on the lower surface of the top plate is maintained at a predetermined distance. It is known that a coil base is fixed to support a coil base and a heating coil is pressed against the lower surface of the top plate.

  For example, as shown in FIG. 1 shown in Patent Document 1, the induction heating coil is placed on a support base to constitute a heating coil unit. The heating coil unit is pressed against the top plate by a spring. The spring is supported by a support shaft provided in the housing. The support base is provided with a guide portion having a ring-shaped opening. At the time of assembly, a ring-shaped opening is provided in the guide portion to make it easy to see the fitting with the boss.

JP 2009-59489 A

  In the above-mentioned Patent Document 1, a guide portion having an opening is provided on a support base, and the boss is positioned inside the outer shape of the support base having the guide portion in order to pass the boss through the opening. Therefore, in order to check the position of the boss, search for the boss as if looking through the opening, or move the line of sight during the work between the support base having the guide and the boss, and the opening provided in the guide It is necessary to perform the fitting work while confirming the positional relationship between both the boss and the boss, which is difficult in this respect.

  The present invention has been made to solve the above-described problem, and includes a top plate that covers the top surface of the main body, a heating coil that heats a pan placed in the main body and placed on the top plate, and the heating coil A coil base for fixing the coil base, a substantially triangular support piece protruding on the outer peripheral side with one side shared with the outer periphery of the coil base, and the heating coil for holding the heating coil on the top plate side A spring of a compression coil spring that lifts the support piece from below, and a guide wall that is a vertical wall that has a substantially square shape that opens from the outside to the center of the coil base so as to surround the support piece. It is provided.

  According to the present invention, the arrangement work of the coil base can be further improved.

The external appearance perspective view which integrated the induction heating cooking appliance of one Example in the kitchen. Similarly, the perspective view seen from the rear part of the induction heating cooking appliance. Similarly, the structure figure inside a main body which removed the top plate set of the induction heating cooking appliance. The structure figure of the state which turned over the coil base of the induction heating cooking appliance of one Example. The structure figure inside the main body which removed the heating coil of the induction heating cooking appliance of one Example. Similarly, the perspective view of the duct of an induction heating cooking appliance. The enlarged view of the FIG. 5A section. C sectional drawing of the B section of FIG.

  Hereinafter, an embodiment of the present invention will be described with reference to FIGS.

  In this embodiment, a built-in type that fits into a system kitchen will be described.

  1 to 3, reference numeral 1 denotes a kitchen. A box-shaped storage portion 1b is provided below the counter top 1a, and a front surface is covered with a door 1c and a side plate 1e above the door 1c.

  The main body 7 is dropped from the upper surface of the mounting hole 1d provided in the countertop 1a and supported by the flange portion 7a of the main body.

  A fixing hole 60L is provided at approximately the center of the body depth of the left side surface 7j which is the left side surface of the main body 7, and the same fixing hole as the fixing hole 60L is provided at the approximate center of the body depth on the right side surface 7k which is the right side surface of the main body 7. 60R (not shown) is provided. The fixing holes 60L and 60R are holes for mounting the horizontal fixing bracket 61 (not shown) to fix the main body 7 to the counter top 1a.

  In addition, a fixing bracket 71 is provided which is rotated and accommodated in a fixing hole 70 provided in the approximate center of the main body width of the rear surface 7p, which is the back side surface of the main body 7. Inside the fixing hole 70, a side wall on the side of the fixing hole 70 is opened, and a box-like support member 73 protruding from a part of the inside of the exhaust port 24 is provided and vertically penetrated to support the fixing bracket 71 by a right screw 72. doing. Then, by rotating the right screw 72, the fixing metal 71 is raised by the female screw provided in the fixing metal 71, and the main body 7 is fixed to the counter top 1a.

  A top plate 2 is horizontally disposed on the upper surface of the main body 7 of the induction heating cooker.

  The top plate 2 is made of crystallized glass with a high heat resistance and has a thickness of about 4 mm, and a cooking container such as a pan made of a magnetic material such as iron or a non-magnetic material such as aluminum is placed on the top plate 2.

  The top plate 2 is provided with a front-side pan mounting portion 5 and a back-side pan mounting portion 6 that indicate the positions where the pan is to be mounted in a circle.

  A heating coil 55 (a front heating coil 8 and a back heating coil formed annularly on the upper portion of the main body 7 below the top plate 2 so as to correspond to the front pan mounting portion 5 and the back pan mounting portion 6. 9) are respectively fixed to the coil base 81 and arranged diagonally to the left front and rear right of the main body 7, and induction heating is performed on the pans and the like placed on the top plate 2. The heating means 12 includes a front side heating coil 8 and a back side heating coil 9.

  The periphery of the top plate 2 is covered with a frame 2a, an operation display unit 4 is provided at the front of the frame 2a, an exhaust outlet 2b is provided at the rear, and a detachable exhaust cover 3 is provided to cover the exhaust outlet 2b. These 2, 2a, 3 and 4 constitute a top plate set 19.

  The exhaust cover 3 is formed with a round hole or slit hole of several millimeters in a sheet metal by punching metal or a cross in order to prevent foreign matter from entering the exhaust outlet 2b and at the same time to ensure ventilation. In consideration of cleanability, the exhaust cover 3 is simply placed on the frame 2a, and water enters the exhaust outlet 2b from the round hole, slit hole, or the gap between the exhaust cover 3 and the frame 2a. To do.

  The operation display unit 4 is provided with a front side operation unit 20 and a back side operation unit 21 corresponding to the front side heating coil 8 and the back side heating coil 9, and a front side display unit 22 and a back side display unit 23. The energization state of the front side heating coil 8 and the back side heating coil 9 is set and operated, and the energization state and the like are displayed.

  The control unit 10 is fixed to the lower case 10b made of a resin material of PP together with the integrated power supply unit 30 and is disposed at the lower part of the back side heating coil 9, and is connected to the front side operation unit 20 and the back side operation unit 21. The inverter unit 50 is controlled based on the input, and the electric power supplied to the front side heating coil 8 and the back side heating coil 9 is controlled. Further, at the time of heating, the inverter 50 is controlled based on information from the temperature sensor 25 provided in the front heating coil 8 and the back side heating coil 9, and the power supplied to the front heating coil 8 and the back side heating coil 9 is the same as described above. Control.

  The inverter unit 50 is disposed below the front heating coil 8 and supplies high-frequency power to the front heating coil 8 and the back heating coil 9.

  The inverter unit 50 is equipped with a heat sink 11b with a switching element attached to the rear part and other heat generating components to generate high-frequency power. Since the height of the main body 7 is lowered and consideration is given to installation, a front fan 17 is disposed below the front heating coil 8. Therefore, the heat sink 11b is arranged at the rear part of the main body 7. The heat sink 11b and the heat generating component are surrounded by the duct 11a, one end of the duct 11a communicates with a main fan 16 described later, and the other end is arranged toward the exhaust port 24 at the rear of the main body 7 to induce mainstream cooling air. The flow path is configured to cool efficiently.

  A main fan 16 that sucks outside air from an air inlet (not shown) provided on the bottom surface of the main body 7 and blows it backward to the main body 7 is provided at the front central portion of the main body 7 to cool the inverter unit 50. It has been. The main fan 16 is a sirocco fan.

  The cooling air induced by the duct 11a from the main fan 16 cools the heat sink 11b and the heat generating components mounted on the inverter unit 50, and the large air volume flows vigorously from the front side to the rear side of the main body 7, thereby efficiently cooling. .

  In addition, a front fan 17 is provided below the front heating coil 8 to draw outside air from an air inlet (not shown) provided on the bottom surface of the main body 7 and cool the front heating coil 8 exclusively.

  The wind of the front fan 17 is applied to the lower surface of the coil from under the front heating coil 8 and simultaneously flows on the upper surface of the coil from the gap between the inner coil 8a and the outer coil 8b.

  Further, a rear fan 18 is provided below the rear heating coil 9 to suck outside air from an air inlet (not shown) provided on the bottom surface 7g of the main body 7 and cool the rear heating coil 9 exclusively.

  Similarly, the wind of the rear side fan 18 is applied to the lower surface of the coil from the bottom of the rear side heating coil 9 and simultaneously flows on the upper surface of the rear side heating coil 9 from the gap between the inner coil 9a and the outer coil 9b.

  The front fan 17 and the back fan 18 are propeller fans. And the inlet provided in the bottom face of these main bodies 7 is arrange | positioned facing the accommodating part 1b under the countertop 1a, and inhales the air of the accommodating part 1b.

  The cooling air flows from the exhaust port 24 surrounded by the rear portion of the main body 7, that is, the rear bottom surface of the inverter unit 50, the rear surface 7 p of the main body, and the substantially U-shaped exhaust plate 41 to the exhaust port 24. Exhaust through the exhaust cover 3 through the exhaust outlet 2b.

  The exhaust plate 41 is closed so that a finger does not enter the inverter unit 50 and the power source unit 30 from the exhaust port 24.

  Next, the structure will be described with reference to FIG. 4, which is a structural diagram of the coil base 81 on which the heating coil 8 is placed, turned upside down.

  The coil base 81 is made of a heat-resistant resin, for example, a PA material, and connects the inner periphery 84 and the outer periphery 81 a with radial ribs 85.

  Further, the outer periphery 81a of the coil base 81 is provided with a support piece 82 having a substantially triangular shape, and is provided so that one side of the support piece 82 is shared with the outer periphery 81a of the coil base 81. It is.

  The supporting piece 82 is integrally formed with a cylindrical projection 83 that opens downward at two locations, near the tip of the supporting piece 82 and near the outer periphery 81a and on the base side of the supporting piece 82.

  The projection 83 is composed of a projection 83 a near the outer periphery 81 a of the coil base 81 and provided on the base side of the support piece 82, and a projection 83 b provided on the vicinity of the distal end of the support piece 82.

  The projection 83 is provided so that the heating coil mounted on the coil base 81 corresponds to the mounting position by sharing a plurality of types of parts.

  A spacer 81 b that presses against the lower surface of the top plate 2 is provided on the upper surface side of the outer periphery 81 a of the coil base 81. The spacer 81b makes the gap between the front heating coil 8 and the top plate 2 constant.

  The back side heating coil 9 shares the coil base 81.

  5 to 7, a structure for supporting the coil base 81 in the main body 7 will be described.

  As shown in FIG. 5, the duct 11a is provided with fixing portions 11c to 11e for supporting the coil base 81 on which the front heating coil 8 is placed. And the fixing | fixed part 11f and 11g for supporting the coil base 81 which mounts the back side heating coil 9 is provided, and fixed part 10z (the above each fixing | fixed part is collectively fixed part 11) in the lower case 10b which fixes the control part 10. FIG. Called).

  The position where each fixing portion 11 is provided is provided in accordance with the position of the protrusion 83 a provided on the base side of the support piece 82 on the lower surface of the support piece 82 provided on the outer periphery 81 a of the coil base 81.

  The duct 11a and the above-described fixing portion 11 are integrally formed at various locations of the duct 11a formed of PP material resin.

  However, in the present embodiment, the fixed piece 11 is provided in the duct 11a, but the portion where the fixed piece 11 is provided is not limited to the duct 11a.

  The structure of the fixing part 11 will be described by taking the fixing part 11c shown in FIG. 7 as an example. FIG. 7 is an enlarged view of portion A shown in FIG.

  The fixing portion 11c has a spring fixing portion 113 and a guide wall 112, which will be described later.

  The spring fixing portion 113 includes an inner circular rib 110 and an outer circular rib 111. The inner circular rib 110 and the outer circular rib 111 are concentric circles, and the outer diameter of the inner circular rib 110 is larger than the inner diameter of a spring 120 (FIG. 8) to be described later, and the spring 120 is press-fitted and fitted and fixed. is there. The height of the outer circular rib 111 is made higher than that of the inner circular rib 110.

  The inner circular rib 110, the outer circular rib 111, and the gap bottom 109 provided in each fixing portion 11 are provided so that the heights thereof are all the same height, and the compression coil spring (will return to the pressing force). The spring 120 is unified so that the compression of the spring 120 made of a spring is uniform.

  Moreover, the upper end of the guide wall 112 to be described later provided on each of the fixed portions 11c is at the same height.

  The guide wall 112 is a vertical wall having an approximately letter shape with an opening facing the substantially central side of the coil base 81. Specifically, as shown in FIG. 7, the vertical wall has an acute vertex as a curved surface. It is. An inner side surface 112a of the guide wall 112 is composed of a flat surface portion 112b and a curved surface portion 112c. The height of the upper end 112g of the guide wall 112 is such that when the spring 120 is fixed to the spring fixing portion 113 and the coil base 81 having the heating coil 55 fixed thereon is placed on the spring 120 (however, the spring 120 is not provided). It is set to a position higher than the position of the upper surface 82c of the support piece 82 in the compressed state).

  A part of the guide wall 112 may be connected to the outer circular rib 111.

  Further, FIG. 7 shows that the guide wall 112 of the fixed portion 11c is connected to the guide wall 112 of the fixed portion 11f by a rib 112d.

  FIG. 8 shows a C cross section of a portion B in FIG. A portion on which the coil base 81 on which the front heating coil 8 is placed is supported on the fixed portion 11c is shown. For the sake of explanation, the top plate 2 is shown assembled on the main body 7.

  The guide wall 112 provided on the fixed portion 11 is provided so as to surround the support piece 82 provided on the coil base 81 from the outside, and at least two support pieces 82 are disposed so as to be applied to the inner side surface 112 a of the guide wall 112. The position of the third support piece 82 is also determined naturally, and the positional relationship between the protrusion 83 provided on the support piece 82 and the spring fixing portion 113 provided on the duct 11a is also determined to be a dimension that is determined naturally. Yes.

  A spring 120 is press-fitted into a spring fixing portion 113 formed integrally with the duct 11 a and is held in the outer circular rib 111. The spring 120 is a compression coil spring and pushes the coil base 81 upward with the top plate 2.

  A protrusion 83 a provided on the support piece 82 of the coil base 81 is inserted on the inner peripheral side of the spring 120 and is held in contact with the lower surface 82 b of the support portion 82 at the upper part of the spring 120. Further, the projection 83 b located at the tip of the support piece 82 has a positional relationship that it cannot be inserted into the upper part of the spring 120 held by the spring fixing portion 113.

  By encircling the substantially triangular support piece 82 of the coil base 81 with a guide wall 112 having a substantially letter shape that opens from the outside toward the center, the roll motion of the coil base 81 is controlled. The movement of the coil base 81 in the vertical direction is held by the height of the guide wall 112, and the coil base 81 cannot be detached from the spring 120 simply by moving the coil base 81 up and down by the compression of the spring 120. In addition, a uniform force acts in the direction in which the heating coil 55 fixed to the upper surface of the coil base 81 is pressed against the top plate 2.

  With the above configuration, assembling property will be described by taking the front heating coil 8 as an example.

  The induction heating cooker is assembled so that components are sequentially stacked from the bottom side of the main body 1 and stacked. After the inverter part 50 is covered with the duct 11a, the springs 120 are respectively held by the spring fixing parts 113 provided in the three fixing parts 11 (11c, 11d, 11e) provided in the duct 11a.

  Next, the support pieces 82 of the coil base 118 to which the heating coil 8 is fixed are respectively placed on the inner side surface 112a of the guide wall 112 so that the front heating coil 8 is held by the three arranged springs 120. Thus, the projection 83a is inserted into the upper end of the spring 120, and the process is completed.

  As described above, when assembling and assembling parts, the position of the part provided for the part located below is positioned outside the part placed above, so the positional relationship of all parts to be aligned Since the work can be performed while confirming from above, the assemblability can be greatly improved.

  As described above, according to the present embodiment, the arrangement work of the coil base can be further improved.

DESCRIPTION OF SYMBOLS 1a Counter top 2 Top plate 2a Frame 2b Exhaust outlet 3 Exhaust cover 4 Operation display part 7 Main body 8 Front side heating coil 9 Back side heating coil 10 Control part 11 Fixing part 11a Duct (housing part)
16 main fan 17 front fan 18 back fan 50 inverter 55 heating coil 81 coil base 81a outer periphery 82 support piece 82a side 83 projection 112 guide wall 112a inner side 113 spring fixing part 120 spring

Claims (2)

  A top plate covering the top surface of the main body, a heating coil for heating the pan placed in the main body and placed on the top plate, a coil base for fixing the heating coil, and one side of the outer periphery of the coil base A substantially triangular support piece projecting to the outer peripheral side in common with the outer periphery of the coil base; a spring of a compression coil spring that lifts the support piece from below to hold the heating coil on the top plate; and the support piece. An induction heating cooker comprising a guide wall made of a vertical wall having a substantially letter-shaped shape opened from the outside toward the center of the coil base so as to surround the coil base.   A top plate covering the top surface of the main body, a heating coil for heating the pan placed in the main body and placed on the top plate, a coil base for fixing the heating coil, and one side of the outer periphery of the coil base A substantially triangular support piece projecting to the outer peripheral side in common with the outer periphery of the coil base; a spring of a compression coil spring that lifts the support piece from below to hold the heating coil on the top plate; and the support piece. An induction heating cooker comprising a guide wall made of a vertical wall having an acute apex that is open on the coil base side so as to surround and has a curved surface.

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