JP6419003B2 - Induction heating cooker - Google Patents

Description

  The present invention relates to an induction heating cooker including an induction heating coil and a grill.

  Patent Document 1 describes a heating cooker. The cooking device includes an upper unit having an upper shell, a top plate, and a heating body, and a lower unit having a grill and a lower shell and detachably attached to the lower portion of the upper unit.

JP 2014-2111244 A

  However, in the heating cooker of patent document 1, a grill can be attached only to the left-right direction center part of an upper unit. For this reason, there was a problem that the user's usability is not necessarily high.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an induction heating cooker that can improve the user-friendliness.

An induction heating cooker according to the present invention includes an induction heating coil, a substrate on which an electronic component that drives the induction heating coil is mounted, and a blower unit that blows cooling air that cools at least the electronic component. A lower unit attached to the bottom of the upper unit. The lower unit can be attached to the bottom of the upper unit at one side in the left-right direction of the upper unit. and 1 of the mounting portion, and a second attachment portion attachable to the other side of the lateral direction of the upper unit and the lower unit, is provided with, on the lower unit has threaded holes are formed, The first attachment portion has a first through hole provided at a position corresponding to the screw hole when the lower unit is disposed closer to one side in the left-right direction of the upper unit, 2 has a second through hole provided at a position corresponding to the screw hole when the lower unit is disposed on the other side in the left-right direction of the upper unit. Is detachably attached to the upper unit by screws inserted into the first through hole or the second through hole and the screw hole from the upper unit side .

  According to the present invention, the grille can be attached to one side or the other side of the upper unit in the left-right direction according to the user's request. Therefore, user convenience can be improved.

It is a schematic diagram which shows the structure of the induction heating cooking appliance 1 which concerns on Embodiment 1 of this invention, and is a figure which shows the upper surface (a) of the induction heating cooking appliance 1, the front surface (b), and the left side surface (c) collectively. is there. It is a schematic diagram which shows the 1st modification of a structure of the induction heating cooking appliance 1 which concerns on Embodiment 1 of this invention, and is a figure which shows the upper surface (a) and front (b) of the induction heating cooking appliance 1 collectively. . It is a schematic diagram which shows the 2nd modification of the structure of the induction heating cooking appliance 1 which concerns on Embodiment 1 of this invention, and is a figure which shows the upper surface (a) and front (b) of the induction heating cooking appliance 1 collectively. .

Embodiment 1 FIG.
The induction heating cooking appliance which concerns on Embodiment 1 of this invention is demonstrated. Drawing 1 is a mimetic diagram showing the composition of induction heating cooking appliance 1 concerning this embodiment, and is a figure showing together the upper surface (a) of induction heating cooking appliance 1, the front (b), and the left side (c). It is. In FIG. 1A, the lower part represents the front side (user side) of the induction heating cooker 1, and the upper part represents the back side of the induction heating cooker 1. That is, the vertical direction in (a) of FIG. 1 represents the front-back direction of the induction heating cooker 1, and the horizontal direction in (a) of FIG. In FIGS. 1A to 1C, illustration of some constituent members (for example, the top plate 11 in FIG. 1A) is omitted as appropriate in order to clearly show the internal configuration. In the following drawings including FIG. 1, the dimensional relationship and shape of each component may differ from the actual ones. Moreover, the positional relationship (for example, up-and-down relationship) and direction (for example, upward or downward) of each structural member in the following description are as a rule when the induction heating cooker 1 is installed in a usable state. Is.

  As shown in FIG. 1, the induction heating cooker 1 includes an upper unit 10 and a lower unit 50 attached to the bottom of the upper unit 10.

  The upper unit 10 includes a top plate 11 on which an object to be heated is placed, and an upper outer case 12 disposed below the top plate 11. The top plate 11 is detachably attached to the upper outer case 12, for example. The upper outer case 12 has, for example, a symmetrical shape. At the bottom of the upper outer case 12, a right opening connected to a suction port of a turbo fan 31 described later and a left opening formed at a position symmetrical to the right opening are formed. . The left opening is closed with another component, for example.

  In the upper outer case 12, at least one (two in this example) induction heating coil 13, an inverter board 20 on which electronic components for driving the induction heating coil 13 are mounted, the electronic component and the induction heating coil 13 are provided. And a blower unit 30 that blows cooling air mainly for cooling. Further, on the back side of the upper outer case 12, a main body exhaust port 14 for exhausting cooling air to the outside and a grill exhaust port 15 for exhausting oily smoke and the like from a grill warehouse 52 described later to the outside are provided. .

  In this example, two induction heating coils 13 are arranged in parallel in the left-right direction. The two induction heating coils 13 may be arranged symmetrically.

  The inverter board 20 is horizontally disposed in the upper outer case 12. The electronic components that drive the induction heating coil 13 include power modules 21a and 21b such as IPM (intelligent power module) or IGBT (insulated gate bipolar transistor). A heat sink for improving heat dissipation is attached to the power modules 21a and 21b. The power modules 21 a and 21 b are disposed on the right side of the inverter board 20 and close to the blower unit 30. The power modules 21a and 21b are arranged symmetrically on the inverter board 20 in the front-rear direction. In the present embodiment, at least the electronic component to which the heat sink is attached is arranged symmetrically on the inverter board 20.

  On the inverter board 20, four terminal blocks 22a, 22b, 22c, and 22d to which wirings to the induction heating coil 13 are respectively connected are provided. The terminal blocks 22a, 22b, 22c, and 22d are arranged symmetrically on the inverter board 20 in the front-rear direction, and are arranged at the center in the left-right direction of the inverter board 20.

  The blower unit 30 is disposed on the right side of the inverter board 20. The blower unit 30 includes, for example, a turbo fan 31 having a rotating shaft extending in the vertical direction, a motor (not shown) that drives the turbo fan 31, a fan case 32 that houses the turbo fan 31 and the motor, And an intake air passage unit 33 that sucks air and supplies it to the turbofan 31. The turbo fan 31, the motor and the fan case 32 are accommodated in the upper outer case 12 and are detachably attached to the upper outer case 12. The turbo fan 31 and the motor are detachably attached to the fan case 32.

  The intake air passage unit 33 has a hollow square cylindrical shape. An intake port 34 is formed on the front surface of the intake air passage unit 33. Further, the intake air passage unit 33 is disposed on the right side below the bottom of the upper outer case 12 in order to avoid contact interference with the lower unit 50. The intake air passage unit 33 is detachably attached to the bottom of the upper outer case 12. The intake air passage unit 33 is connected to an intake port formed in the lower surface portion of the fan case 32 through an opening formed in the bottom portion of the upper outer case 12. Thereby, the turbo fan 31 sucks air supplied from the intake air passage unit 33 from below in the rotation axis direction, and blows out the sucked air as cooling air in one direction in the horizontal plane (left direction in this example). It has become.

  The lower unit 50 includes a lower outer case 51 having an upper surface and a front surface opened, a grill box 52 accommodated in the lower outer case 51 and having a front surface opened, and a grill door 53 that opens and closes the front opening of the grill box 52. The decorative panel 54 is provided in the same plane as the grill door 53 in the closed state and constitutes the design surface of the lower unit 50.

  The lower outer case 51 is disposed on the left side below the bottom of the upper outer case 12. At the opening end of the upper surface opening of the lower outer case 51, a flange portion 55 that comes into contact with the lower surface of the bottom portion of the upper outer case 12 is formed. Screw holes are formed at a plurality of locations (five locations in this example) of the flange portion 55 by burring or nut welding.

  Here, at the bottom of the upper outer case 12, five through holes 16a, 16b, 16c, 16d, and 16e through which screws are respectively passed are formed as first attachment portions that can attach the lower outer case 51 to the left. ing. The through holes 16a, 16b, 16c, 16d, and 16e are provided at positions corresponding to the respective screw holes of the lower outer case 51 arranged on the left side. In addition, five through holes 17a, 17b, 17c, 17d, and 17e through which screws are respectively passed are formed at the bottom of the upper outer case 12 as second mounting portions that can be attached to the lower outer case 51 to the right. Yes. The through holes 17a, 17b, 17c, 17d, and 17e are provided at positions corresponding to the respective screw holes of the lower outer case 51 that is arranged on the right side. Note that some of the through holes may serve as both the first attachment portion and the second attachment portion.

  The bottom portion of the upper outer case 12 and the flange portion 55 of the lower outer case 51 are fastened by five screws 18a, 18b, 18c, 18d, and 18e inserted into the through holes and screw holes from the upper outer case 12 side. ing. By inserting the screws 18a, 18b, 18c, 18d, 18e from the upper outer case 12 side, the upper outer case 12 and the lower outer case 51 can be fastened with the upper unit 10 stacked on the lower unit 50. it can. For this reason, the assembly process of the induction heating cooking appliance 1 becomes easy. If the screws 18a, 18b, 18c, 18d, and 18e are inserted from the lower outer case 51 side, it is necessary to reverse the top and bottom of the lower unit 50 and the upper unit 10 during the assembly process.

  In this example, since the lower outer case 51 is attached to the left side, the through holes 17a, 17b, 17c, 17d, and 17e of the upper outer case 12 are not used for attaching the lower outer case 51. For this reason, the through-holes 17a, 17b, 17c, 17d, and 17e may be blocked by another component.

  The space in the lower outer case 51 is formed wider than the grill box 52. The grill box 52 can be attached to either the left side or the right side in the lower outer case 51. The grill storage 52 of this example is detachably attached to the left side in the lower outer case 51. As a result, the grill 52 is arranged on the left side in the left-right direction of the upper unit 10. The grill box 52 is not directly fixed to the upper outer case 12, but is fixed only to the lower outer case 51.

  When the turbo fan 31 is driven, air outside the induction heating cooker 1 is sucked from the intake port 34 and supplied to the turbo fan 31 via the intake air path unit 33. The cooling air blown out from the turbo fan 31 occupies the entire space in the upper outer case 12 (for example, the space above the inverter board 20 and below the induction heating coil 13) as shown by the broken line arrows in FIG. As it flows from right to left. With this cooling air, the electronic components (for example, power modules 21a and 21b) and the induction heating coil 13 on the inverter board 20 are cooled. Further, part of the cooling air flows into the lower outer case 51 via the lower side of the inverter board 20. This cooling air suppresses heat radiation from the grill warehouse 52 to the surroundings. These cooling air is exhausted to the outside through the main body exhaust port 14.

  Next, the modification of the structure of the induction heating cooking appliance 1 which concerns on this Embodiment is demonstrated. In the present embodiment, the configuration of the induction heating cooker 1 is changed to the following modification by changing the mounting position or mounting posture of the components that are detachably mounted in the induction heating cooker 1 shown in FIG. It is possible to change to The change in the configuration of the induction heating cooker 1 can be performed by the manufacturer, the installer, the user (purchaser), or the like of the induction heating cooker 1.

  Drawing 2 is a mimetic diagram showing the 1st modification of composition of induction heating cooking appliance 1 concerning this embodiment, and is a figure showing the upper surface (a) and front (b) of induction heating cooking appliance 1 collectively. is there. The attachment positions and attachment postures of main components in the induction heating cooker 1 of this modification will be described with a focus on differences from the induction heating cooker 1 shown in FIG.

  The lower outer case 51 is attached to the state shown in FIG. 1 while being moved to the right of the upper outer case 12 without rotating. The grill warehouse 52, the grill door 53, and the grill exhaust port 15 are attached in a state of being moved relatively to the right in the lower outer case 51 without rotating. As a result, the grill 52 is arranged on the right side in the left-right direction of the upper unit 10.

  The inverter board 20 is attached in a state rotated by 180 ° in a horizontal plane with respect to the state shown in FIG. Since the terminal blocks 22a, 22b, 22c, and 22d are symmetrically arranged at the center in the left-right direction of the inverter board 20, they are necessary for connection between the terminal blocks 22a, 22b, 22c, and 22d and the induction heating coil 13. It is possible to prevent a change in the wiring length. For this reason, the wiring between the terminal blocks 22a, 22b, 22c, 22d and the induction heating coil 13 can be used as it is. Further, by rotating the inverter board 20, the power modules 21 a and 21 b are arranged on the left side of the inverter board 20.

  The blower unit 30 is attached in a state of moving to the left side of the inverter board 20 with respect to the state shown in FIG. Specifically, the fan case 32 of the blower unit 30 is attached in a state where the fan case 32 is rotated 180 ° in a horizontal plane with respect to the state shown in FIG. The turbo fan 31, the motor, and the intake air passage unit 33 are attached in a state where they are moved as they are without rotating with respect to the state shown in FIG. Also in this modification, since the air blow unit 30 is arrange | positioned adjacent to the power modules 21a and 21b, the cooling performance of the power modules 21a and 21b equivalent to the induction heating cooking appliance 1 shown in FIG. 1 is obtained.

  FIG. 3 is a schematic diagram showing a second modification of the configuration of the induction heating cooker 1 according to the present embodiment, and is a view showing the upper surface (a) and the front surface (b) of the induction heating cooker 1 together. is there. As shown in FIG. 3, in this modified example, compared with the induction heating cooker 1 shown in FIG. 1, the grill cabinet 52, the grill door 53, and the grill exhaust port 15 are relatively shifted to the right in the lower outer case 51. It is attached in the state moved to. Thereby, the grill box 52 is arranged in the center in the left-right direction of the upper unit 10.

  As described above, the induction heating cooker 1 according to the present embodiment includes the inverter board 20 on which the induction heating coil 13 and the electronic components (for example, the power modules 21a and 21b) that drive the induction heating coil 13 are mounted. And an upper unit 10 that blows at least cooling air that cools electronic components, and a lower unit 50 that has a grill box 52 and is attached to the bottom of the upper unit 10. 10, a first mounting portion (for example, through holes 16 a, 16 b, 16 c, 16 d, 16 e) capable of mounting the lower unit 50 to one side in the left-right direction of the upper unit 10, and the lower unit 50 A second mounting portion (for example, through holes 17a, 17b, 17c, 17d, and 17e) that can be mounted on the other side of the unit 10 in the left-right direction. It is and the lower unit 50 is one that is detachably attached to the first mounting portion and the second attachment portion.

  According to this configuration, even after the user purchases the induction heating cooker 1, the mounting position of the grill cabinet 52 is set in the left-right direction of the upper unit 10 in accordance with the user's request and the position of the wall in the kitchen. It can be changed to one side or the other side. Therefore, user convenience can be improved. Moreover, even if the position of the wall in the kitchen changes due to moving or remodeling, the induction heating cooker 1 can be used without replacement by changing the mounting position of the grill box 52. Furthermore, the manufacturer of the induction heating cooker 1 sets a plurality of options in which the mounting position of the grill box 52 is changed, an option only for the upper unit 10 in which the lower unit 50 is omitted, and the like while suppressing an increase in cost. Is possible.

  Moreover, in the induction heating cooking appliance 1 which concerns on this Embodiment, the ventilation unit 30 has the structure which can be attached to both the one side and the other side of the left-right direction of the upper unit 10, and the right and left of the upper unit 10 It may be detachably attached to one side or the other side of the direction. According to this structure, since the attachment position of the ventilation unit 30 can be changed according to the attachment position of the grill warehouse 52, interference with the ventilation unit 30 and the grill warehouse 52 can be prevented.

  Moreover, in the induction heating cooking appliance 1 which concerns on this Embodiment, the electronic component contains the power modules 21a and 21b, Even if the power modules 21a and 21b are arrange | positioned on the inverter board | substrate 20 symmetrically back and forth. Good. According to this configuration, it is possible to prevent the cooling performance of the power modules 21a and 21b from being lowered by rotating the inverter board 20 in a horizontal plane according to the mounting position of the blower unit 30.

  Moreover, in the induction heating cooking appliance 1 which concerns on this Embodiment, the terminal blocks 22a, 22b, 22c, and 22d to which the wiring between the induction heating coils 13 is connected are provided on the inverter board | substrate 20, The terminal blocks 22a, 22b, 22c, and 22d may be arranged on the inverter board 20 symmetrically in the front-rear direction, and may be arranged at the center in the left-right direction of the inverter board 20. According to this configuration, even if the inverter board 20 is rotated on a horizontal plane, the wiring between the terminal blocks 22a, 22b, 22c, 22d and the induction heating coil 13 can be used as it is.

  DESCRIPTION OF SYMBOLS 1 Induction heating cooker, 10 Upper unit, 11 Top plate, 12 Upper outer case, 13 Induction heating coil, 14 Main body exhaust port, 15 Grill exhaust port, 16a, 16b, 16c, 16d, 16e, 17a, 17b, 17c, 17d, 17e Through hole, 18a, 18b, 18c, 18d, 18e Screw, 20 Inverter board, 21a, 21b Power module, 22a, 22b, 22c, 22d Terminal block, 30 Air blower unit, 31 Turbo fan, 32 Fan case, 33 Intake air path unit, 34 Inlet, 50 Lower unit, 51 Lower outer case, 52 Grill box, 53 Grill door, 54 Cosmetic panel, 55 Flange part.

Claims (4)

An upper unit comprising: an induction heating coil; a substrate on which an electronic component that drives the induction heating coil is mounted; and a blower unit that blows cooling air that cools at least the electronic component;
A lower unit having a grill storage and attached to the bottom of the upper unit;
With
At the bottom of the upper unit, a first mounting portion that can attach the lower unit to one side of the upper unit in the left-right direction, and a first attachment portion that can attach the lower unit to the other side of the upper unit in the left-right direction. 2 mounting portions are provided,
The said lower unit is formed with a screw hole,
The first attachment portion has a first through hole provided at a position corresponding to the screw hole when the lower unit is disposed closer to one side in the left-right direction of the upper unit,
The second mounting portion has a second through hole provided at a position corresponding to the screw hole when the lower unit is disposed on the other side in the left-right direction of the upper unit.
The lower unit is an induction heating cooker that is detachably attached to the upper unit by a screw inserted into the first through hole or the second through hole and the screw hole from the upper unit side . .   The blower unit has a structure that can be attached to both the left and right sides of the upper unit, and is detachably attached to the left and right sides of the upper unit. The induction heating cooker according to claim 1. The electronic component includes a power module,
The induction heating cooker according to claim 2, wherein at least the power module is symmetrically arranged on the substrate. On the substrate, a terminal block to which wiring between the induction heating coil is connected is provided,
The induction heating cooker according to claim 2 or 3, wherein the terminal block is disposed symmetrically on the substrate in the front-rear direction and is disposed at a central portion in the left-right direction of the substrate.

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