Heating Regulator
The cooking heater maintains consistent cooling performance by directing airflow to both control boards, addressing the lack of versatility in existing induction cooking heaters.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
- Filing Date
- 2022-06-28
- Publication Date
- 2026-06-19
Smart Images
Figure 0007876157000001 
Figure 0007876157000002 
Figure 0007876157000003
Abstract
Description
Technical Field
[0001] This disclosure relates to a cooking heater.
Background Art
[0002] Patent Document 1 discloses an induction cooking heater including left and right substrates and a middle substrate. A right inverter element connected to a right heating coil and a left inverter element connected to a left heating coil are mounted on the left and right substrates. A middle inverter element connected to a middle heating coil is mounted on the middle substrate.
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0004] There is room for improvement in the cooking heater of Patent Document 1 from the perspective of enhancing versatility.
[0005] This disclosure aims to provide a cooking heater with high versatility.
Means for Solving the Problems
[0006] A cooking heater according to one aspect of this disclosure includes at least one first heating coil, a first control board that controls the first heating coil, a fan that rotates around a rotation axis extending in the thickness direction of the first control board and can blow air in the plane direction of the first control board, and a fan case that houses the fan therein, the fan case having an air outlet that connects the inside and the outside of the fan case, a fan device, and an outer case that houses the first heating coil, the first control board, and the fan device therein Equipped with, The aforementioned outer casing case, A first mounting portion located inside the outer casing, to which a second heating coil different from the first heating coil can be attached, A second mounting portion located inside the outer casing, on which a second control board for controlling the second heating coil can be mounted, It has, The aforementioned air outlet, A first air blowing unit directs the airflow from the fan toward the first control board, A second air blower is located downstream of the first air blower in the air outlet in the direction of rotation of the fan, and directs the air blown by the fan toward the second mounting portion. It holds. [Effects of the Invention]
[0007] According to this disclosure, a highly versatile induction heating cooker can be realized. [Brief explanation of the drawing]
[0008] [Figure 1] A perspective view showing a heating appliance according to one embodiment of the present disclosure. [Figure 2] A top view of the cooking appliance shown in Figure 1 with the top plate removed. [Figure 3] A top view of the cooking appliance shown in Figure 1 with the top plate and heating coil removed. [Figure 4] Figure 1 is a perspective view showing the fan mechanism of the cooking appliance. [Figure 5] A cross-sectional perspective view along the VV line in Figure 4. [Modes for carrying out the invention]
[0009] (Background leading to this disclosure) In the induction heating cooker of Patent Document 1, the fan device has a front air outlet and a left air outlet. The front air outlet is arranged adjacent to the downstream of the left air outlet in the rotation direction of the fan device. The cooling air blown out from the front air outlet is blown out toward the left and right substrates, and the cooling air blown out from the left air outlet is blown out toward the middle substrate.
[0010] For example, in the induction heating cooker of Patent Document 1, when the middle heating coil and the middle substrate are removed and the number of heating ports is reduced from three to two, the air volume of the cooling air blown out from the fan device to the left and right substrates changes, and the cooling performance for the left and right substrates may change. Therefore, in the induction heating cooker of Patent Document 1, unless the air supply path is changed according to the number of heating ports, the designed cooling performance cannot be exhibited, and there may be cases where versatility cannot be provided.
[0011] The inventors of the present invention have found a configuration of a highly versatile heating cooker and have arrived at the following invention.
[0012] The heating cooker according to the first aspect of the present disclosure is at least one first heating coil, a first control board for controlling the first heating coil, a fan that rotates around a rotation axis extending in the thickness direction of the first control board and can blow air in the plane direction of the first control board, and a fan case that houses the fan therein, and a fan device having an air outlet that connects the inside and the outside of the fan case, and an outer case that houses the first heating coil, the first control board, and the fan device therein and is provided with where the outer case has a first attachment portion located inside the outer case and capable of attaching a second heating coil different from the first heating coil, and a second attachment portion located inside the outer case and capable of attaching a second control board for controlling the second heating coil and has where the air outlet A first air blowing part that directs the air blown by the fan toward the first control board; A second air blowing part that is located downstream of the first air blowing part at the air outlet in the rotational direction of the fan and directs the air blown by the fan toward the second mounting part and has.
[0013] The cooking heater according to the second aspect of the present disclosure is the cooking heater according to the first aspect, The opening area occupied by the first air blowing part of the air outlet is larger than the opening area occupied by the second air blowing part of the air outlet.
[0014] The cooking heater according to the third aspect of the present disclosure is the cooking heater according to the first aspect or the second aspect, The power consumption of the first control board is larger than the power consumption of the second control board.
[0015] The cooking heater according to the fourth aspect of the present disclosure is the cooking heater according to the first aspect to the third aspect, It is provided above in the thickness direction of the outer case and includes a top plate having an exhaust port, The second mounting part is located on a straight line passing through the rotation axis and the exhaust port.
[0016] The cooking heater according to the fifth aspect of the present disclosure is the cooking heater according to the first aspect to the fourth aspect, It includes a heating chamber located below in the thickness direction of the outer case, The second mounting part is located at a position that does not overlap with the heating chamber when viewed along the thickness direction.
[0017] The cooking heater according to the sixth aspect of the present disclosure is the cooking heater according to the first aspect to the fifth aspect, A first holding base provided inside the outer case and holding the first control board; A second holding base provided on the second mounting part, adjacent to the first holding base in the surface direction downstream of the first holding base in the rotational direction, and capable of holding the second control board and has. The first holding base is It has a retaining piece that is positioned opposite to the second retaining base in the plane direction and away from the bottom of the outer case in the thickness direction, and extends along the plane direction, The second holding base is, The protrusion is located in the plane direction opposite to the retaining piece, protrudes toward the retaining piece along the plane direction, and is located between the retaining piece and the bottom of the outer case, The second retaining base is attached to the outer case by having the protruding portion sandwiched between the retaining piece and the bottom of the outer case.
[0018] The seventh aspect of this disclosure is a heating appliance that, in the first to sixth aspects of the heating appliance, The outer case is equipped with a heating chamber located below it in the thickness direction, The heating chamber has an opening and a door at its front that opens and closes the opening. The first air blower is located closer to the front of the heating chamber than the first control board in the width direction that intersects the surface direction and the direction from the front to the rear of the heating chamber, Inside the outer casing, an airflow path is provided in which the air blown by the fan flows from the first airflow unit through the first control board toward the rear of the heating chamber. The width of the first control board is 400 mm or less.
[0019] The eighth aspect of this disclosure is a heating appliance that, in the heating appliances of the first to seventh aspects, The outer casing is equipped with a heating chamber located below it, The first control board is provided with a heatsink on which an insulated gate bipolar transistor is attached. When viewed along the thickness direction, the heat sink is positioned such that at least a portion of it does not overlap with the heating chamber.
[0020] The ninth aspect of this disclosure is a heating appliance that, in the heating appliances of the first to eighth aspects, The aforementioned planar direction includes a first direction and a second direction intersecting the first direction. The fan device is located at one end of the outer casing in the first direction and at one end in the second direction. The first control board is located closer to the other end of the outer case in the first direction than the fan device, The second mounting portion is located closer to the other end of the outer casing in the second direction than the fan device.
[0021] The embodiments of this disclosure will be described below with reference to the drawings. The following description is not limiting to this disclosure and is essentially illustrative, and may be modified as appropriate without departing from the spirit of this disclosure. The drawings are schematic, and the proportions of the dimensions, etc., do not necessarily correspond to those of reality.
[0022] As shown in Figure 1, a built-in induction cooker 1 according to one embodiment of the present disclosure is a built-in induction cooker. As an example, the cooker 1 comprises a housing 2 that houses a heating chamber 20 inside, and a top plate 10 attached to the housing. Hereinafter, the left-right direction of the cooker 1 will be referred to as the X direction, the front-back direction of the cooker 1 as the Y direction, and the up-down direction of the cooker 1 as the Z direction.
[0023] The enclosure 2 includes a first outer case 3 located between the top plate 10 and the heating chamber 20 in the vertical direction Z, and a second outer case 4 that detachably houses the heating chamber 20 from the front-rear direction Y. In other words, the heating chamber 20 is located below the first outer case 3 in the vertical direction Z. Each of the first outer case 3 and the second outer case 4 is made of, for example, a metal material and has a substantially rectangular parallelepiped shape.
[0024] As shown in Figure 2, the first outer case 3 contains two heating coils 5 for induction heating, a first control board 6 for controlling the two heating coils 5 (an example of the first heating coil), a first mounting section 30, a second mounting section 40, and a fan device 50.
[0025] The two heating coils 5 have a roughly circular shape when viewed along the vertical direction Z, and are arranged with a gap between them in the horizontal direction X. Each heating coil 5 is adjacent to the lower surface of the top plate 10 and has a gap between it and the bottom surface of the first outer case 3 in the vertical direction Z.
[0026] The first control board 6 has a substantially rectangular shape and is located below the two heating coils 5 in the gap between each heating coil 5 and the bottom surface of the first outer case 3, extending in the left-right direction X and the front-back direction Y. In other words, the first control board 6 is housed inside the first outer case 3 such that the up-down direction Z is the thickness direction of the first control board 6. The planar directions of the first control board 6 include the left-right direction X (an example of a first direction) and the front-back direction Y (an example of a second direction).
[0027] As an example, as shown in Figure 3, the first control board 6 is located closer to the left end 301 of the first outer case 3 than the fan device 50 in the left-right direction X, and closer to the front end 302 of the first outer case 3 than the second mounting portion 40 in the front-back direction Y. In other words, the first control board 6 is located closer to the other end of the first outer case 3 in the left-right direction X than the fan device 50.
[0028] The first control board 6 is provided with a heatsink 61 on which an insulated-gate bipolar transistor (IGBT) is attached. When viewed along the vertical Z direction, the heatsink 61 is positioned so that at least a portion of it does not overlap with the heating chamber 20.
[0029] The width dimension of the first control board 6 (for example, the dimension in the left-right direction X) is preferably 400 mm or less. This allows the first control board 6 to be housed in a 45 cm stove module (opening width 410 mm).
[0030] As shown in Figure 2, the first mounting portion 30 is located midway between the two heating coils 5 in the left-right direction X when viewed along the vertical direction Z, and is located closer to the rear end 303 of the first outer case 3 than the two heating coils 5 in the front-rear direction Y. The first mounting portion 30 is configured to allow the attachment of a heating coil 110 (an example of a second heating coil) with a different coil diameter and power consumption, for example, to the heating coil 5.
[0031] The second mounting portion 40 is configured to accommodate a second control board 100 for controlling the heating coil 110. For example, the second control board 100 mounted on the second mounting portion 40 is located on substantially the same plane as the first control board 6. As shown in Figure 3, the second mounting portion 40 is located in a position that does not overlap with the heating chamber 20 when viewed along the vertical direction Z. For example, the second mounting portion 40 is located closer to the rear end 303 of the first outer case 3 than the fan device 50 in the front-rear direction Y. In other words, the second mounting portion 40 is located closer to the other end of the first outer case 3 in the front-rear direction Y than the fan device 50.
[0032] Inside the first outer case 3, there is a first retaining base 7 for holding the first control board 6. The second mounting portion 40 is provided with a second retaining base 41 capable of holding the second control board 100. As shown in Figure 3, the second retaining base 41 is located downstream of the first retaining base 7 in the direction of rotation of the fan 51 (direction of arrow A), and is adjacent to the first retaining base 7 in the planar direction (for example, the left-right direction X).
[0033] As shown in Figures 4 and 5, the first retaining base 7 has a retaining piece 71, and the second retaining base 41 has a protruding portion 42.
[0034] The retaining piece 71 is positioned opposite the second retaining base 41 in the planar direction (e.g., the Y direction) and away from the bottom 305 of the first outer case 3 in the vertical direction Z. As an example, the retaining piece 71 includes a first wall portion 72 extending upward from the bottom 74 of the first retaining base 7, and a second wall portion 73 extending toward the second retaining base 41 along the planar direction (e.g., the Y direction) from the tip of the first wall portion 72.
[0035] The protrusion 42 is positioned opposite the retaining piece 71 in the planar direction (for example, the Y direction). The protrusion 42 projects from the outer surface of the wall portion 411 of the second retaining base 41 that faces the fan device 50 toward the retaining piece 71 along the planar direction (for example, the Y direction), and is positioned between the retaining piece 71 and the bottom portion 305 of the first outer case 3.
[0036] The first retaining base 7 is fixed to the bottom 305 of the first outer case 3 by a screw or other component, and the retaining piece 71 presses the protruding portion 42 toward the bottom 305 of the first outer case 3. In other words, the second retaining base 41 is attached to the first outer case 3 by having the protruding portion 42 sandwiched between the retaining piece 71 and the bottom 305 of the first outer case 3.
[0037] As shown in Figure 4, the fan device 50 includes a fan 51 and a fan case 52 that houses the fan 51. For example, the fan device 50 is located near the right front corner 306 of the first outer case 3. In other words, the fan device 50 is located at one end in the left-right direction X and one end in the front-rear direction Y of the first outer case 3.
[0038] The fan 51 has a rotating shaft 53 that extends in the vertical direction, and is configured to rotate around the rotating shaft 53 to blow air in the plane direction of the first control board 6. For example, the fan 51 is a centrifugal fan composed of an impeller 54 and a motor (not shown) that rotates the impeller 54 in the direction of arrow A.
[0039] The fan case 52 has a substantially circular shape when viewed, for example, along the vertical direction Z, and a part of it is composed of the first retaining base 7. The fan case 52 includes an air outlet 55 that connects the inside and outside of the fan case 52. The air outlet 55 has a first air blowing section 551 that directs the air blown by the fan 51 toward the first control board 6, and a second air blowing section 552 that directs the air blown by the fan 51 toward the second mounting section 40. The second air blowing section 552 is, for example, adjacent to the first air blowing section 551 in the direction of rotation of the fan 51, and located downstream of the first air blowing section 551 in the direction of rotation of the fan 51.
[0040] An air intake port 56 is provided at the lower end of the fan case 52 in the vertical direction Z. The air intake port 56 penetrates the fan case 52 and the first outer case 3 in the vertical direction Z and is connected to the outside and inside of the first outer case 3.
[0041] As an example, the first air blower 551 and the second air blower 552 have a roughly rectangular shape. As shown in Figure 3, the first air blower 551 is located in the straight section 521 of the fan case 52 facing the first control board 6 in the left-right direction X, and the second air blower 552 is located in the straight section 522 of the fan case 52 facing the second mounting section 40 in the front-rear direction Y. The opening area of the air outlet 55 occupied by the first air blower 551 is larger than the opening area of the air outlet 55 occupied by the second air blower 552.
[0042] As shown in Figure 3, the fan device 50 includes, for example, a member 57 attached to the air outlet 55 and, together with the first holding base 7, forms an airflow path to the first control board 6 and the second mounting portion 40. An example of the airflow path to the first control board 6 is shown by arrow B, and an example of the airflow path to the second mounting portion 40 is shown by arrow C. The first air blower 551 is located closer to the front of the heating chamber 20 than the first control board 6. Inside the first outer case 3, an airflow path is formed through which the air blown by the fan 51 flows from the first air blower 551 through the first control board 6 toward the rear of the heating chamber 20.
[0043] The top plate 10 includes a glass plate through which magnetic flux can pass and is attached to the upper end of the housing 2. A cooking container such as a pot is placed on the upper surface 11 of the top plate 10. The cooking container placed on the top plate 10 is induction heated by a heating coil 5 housed inside the housing 2.
[0044] As shown in Figure 1, an operating unit 13 is provided at the front end of the top plate 10. By operating the operating unit 13, the user can control the heating coils 5 and 110 via the first control board 6 and the second control board 100 to control the amount of heat applied to the cooking container. At the rear end of the top plate 10, an exhaust port 14 is provided that penetrates the top plate 10 in the vertical direction Z. As shown in Figures 2 and 3, the top plate 10 is provided with two exhaust ports 14 as an example. Each exhaust port 14 has a substantially rectangular shape with the left-right direction X as its longitudinal direction and is positioned with a gap between them in the left-right direction X.
[0045] As shown in Figure 3, the second mounting portion 40 is located on a virtual straight line L that passes through the rotation axis 53 of the fan 51 and the exhaust port 14 when viewed along the vertical direction Z. For example, the virtual straight line L in Figure 3 passes through the longitudinal centers of the rotation axis 53 of the fan 51 and the exhaust port 14.
[0046] The heating chamber 20 includes a main body 21 having an opening 22 at the front, and a grill door 23 (an example of a door) that opens and closes the opening 22. The main body 21 has, for example, a roughly rectangular parallelepiped shape and is configured to accommodate food ingredients such as fish inside.
[0047] The heating device 1 can provide the following effects:
[0048] The heating appliance 1 comprises at least one heating coil 5, a first control board 6 for controlling the heating coil 5, a fan device 50, and a first outer case 3 that houses the heating coil 5, the first control board 6, and the fan device 50. The fan device 50 includes a fan 51 that rotates around a rotation axis 53 extending in the vertical direction Z and blows air in the plane direction of the first control board 6, and a fan case 52 that houses the fan 51. The fan case 52 has an air outlet 55 that connects the inside and outside of the fan case 52. The first outer case 3 has a first mounting portion 30 located inside the first outer case 3 to which the heating coil 110 can be attached, and a second mounting portion 40 located inside the first outer case 3 to which a second control board 100 that controls the heating coil 110 can be attached. The air outlet 55 has a first air blowing section 551 that directs the air blown by the fan 51 toward the first control board 6, and a second air blowing section 552 located downstream of the first air blowing section 551 in the air outlet 55 in the direction of rotation of the fan 51 and directs the air blown by the fan 51 toward the second mounting section 40. With this configuration, since the air blown by the fan 51 first goes toward the first control board 6, it is possible to suppress changes in the cooling performance toward the first control board 6 due to the presence or absence of the second control board 100 and the heating coil 110. In other words, the cooling performance can be maintained without changing the air blowing path according to the number of heating ports. As a result, a highly versatile heating cooker 1 can be realized.
[0049] The opening area occupied by the first air blowing section 551 of the air outlet 55 is larger than the opening area occupied by the second air blowing section 552 of the air outlet 55. With this configuration, it is possible to more reliably suppress changes in the cooling performance of the first control board 6 due to the presence or absence of the second control board 100 and the heating coil 110.
[0050] When viewed along the vertical direction Z, the second mounting portion 40 is located on a virtual straight line L passing through the rotation axis 53 of the fan 51 and the exhaust port 14. This configuration increases the cooling efficiency of the second control board 100 and reduces the amount of airflow distributed by the fan 51 to the second control board 100, thereby more reliably suppressing changes in cooling performance for the first control board 6 due to the presence or absence of the second control board 100 and the heating coil 110.
[0051] The second mounting portion 40 is positioned so as not to overlap with the heating chamber 20 when viewed along the vertical direction Z. This configuration improves the cooling efficiency of the second control board 100 and reduces the airflow of the fan 51 distributed to the second control board 100, thereby more reliably suppressing changes in cooling performance for the first control board 6 due to the presence or absence of the second control board 100 and heating coil 110.
[0052] The heating appliance 1 comprises a first holder 7 for holding a first control board 6 and a second holder 41 capable of holding a second control board 100. The second holder 41 is provided on the second mounting portion 40 and is located downstream of the first holder 7 in the rotational direction of the fan 51, and is adjacent to the first holder 7 in the planar direction of the first control board 6. The first holder 7 is located opposite the second holder 41 in the planar direction of the first control board 6 and away from the bottom 305 of the first outer case 3 in the vertical direction Z, and has a retaining piece 71 extending along the planar direction of the first control board 6. The second holder 41 is located opposite the retaining piece 71 in the planar direction of the first control board 6, and has a projection 42 that protrudes toward the retaining piece 71 along the planar direction of the first control board 6 and is located between the retaining piece 71 and the bottom 305 of the first outer case 3. The second retaining base 41 is held inside the first outer case 3, with its protruding portion 42 sandwiched between the retaining piece 71 and the bottom portion 305 of the first outer case 3. This configuration reduces the influence of the presence or absence of the second retaining base 41 on the attachment of the first retaining base 7 to the first outer case 3.
[0053] Inside the first outer case 3, an airflow path is provided through which air from the fan 51 flows from the first airflow section 551 through the first control board 6 toward the rear of the heating chamber 20, with the width of the first control board 6 being 400 mm or less. This configuration allows for the formation of a general-purpose airflow path while accommodating the first control board 6 in a 45 cm stove module (opening width 410 mm). As a result, it becomes easier to develop different models of the heating cooker 1.
[0054] A heat sink 61 with an insulated gate bipolar transistor attached is provided on the first control board 6, and at least a portion of the heat sink 61 is positioned so as not to overlap with the heating chamber 20 when viewed along the vertical direction Z. This configuration reduces the influence of the heating chamber 20 on the heat sink 61 and enhances the cooling effect of the first control board 6.
[0055] The fan device 50 is located at one end of the first outer case 3 in the left-right direction X and at one end in the front-rear direction Y. The first control board 6 is located closer to the other end of the first outer case 3 in the left-right direction X than the fan device 50. The second mounting portion 40 is located closer to the other end of the first outer case 3 in the front-rear direction Y than the fan device 50. With this configuration, the second control board 100 can be easily attached to and detached from the second mounting portion 40.
[0056] The cooking appliance 1 can also be configured as follows:
[0057] The first control board 6 may be configured to have a higher power consumption than the second control board 100. This allows for a smaller airflow from the fan 51 distributed to the second control board 100, thereby more reliably suppressing changes in cooling performance for the first control board 6 due to the presence or absence of the second control board 100 and the heating coil 110.
[0058] The second mounting portion 40 is not limited to being located on a virtual straight line L when viewed along the vertical direction Z; it is not necessarily located on a virtual straight line L.
[0059] The second mounting portion 40 is not limited to being located in a position that does not overlap with the heating chamber 20 when viewed along the vertical direction Z; at least a portion of it may be located in a position that overlaps with the heating chamber 20.
[0060] The first holding base 7 and the second holding base 41 can be omitted.
[0061] The airflow path is not limited to the above embodiment; any configuration can be adopted that directs the airflow from the fan 51 toward the first control board 6 and the second mounting portion 40.
[0062] The opening area occupied by the first air blowing section 551 of the air outlet 55 is not necessarily larger than the opening area occupied by the second air blowing section 552 of the air outlet 55; it may be the same or smaller.
[0063] The air outlet 55 can adopt any configuration having a first air blower 551 and a second air blower 552. For example, the air outlet 55 may have a third air blower located between the first air blower 551 and the second air blower 552 in the rotational direction of the fan 51.
[0064] The first air blower 551 and the second air blower 552 are not limited to being substantially rectangular in shape, but may be of any shape.
[0065] The heatsink 61 can be omitted. Other components besides the heatsink 61 may be attached to the first control board 6.
[0066] The fan device 50 is not limited to being located at one end in the left-right direction X and one end in the front-rear direction Y of the first outer case 3, but can be placed at any position inside the first outer case 3.
[0067] By appropriately combining any embodiment or modification from the various embodiments or modifications described above, the effects of each can be achieved. Combinations of embodiments with each other, combinations of examples with each other, and combinations of embodiments with examples are possible, as well as combinations of features from different embodiments or examples.
[0068] While this disclosure is described in relation to preferred embodiments with reference to the accompanying drawings, various variations and modifications will be obvious to those skilled in the art. Such variations and modifications should be understood to be included within the scope of this disclosure as defined by the attached claims. [Industrial applicability]
[0069] This disclosure is applicable not only to built-in induction cookers but also to tabletop induction cookers. [Explanation of Symbols]
[0070] 1 Cooker 2 cabinets 3. First Outer Case 301 Leftmost 302 front end 303 Rear end 304 Rightmost 305 Bottom 306 corner 4. Second Outer Case 5. Heating coil 6. First control board 61 Heatsink 7 1st holding stand 71 Holding piece 72 1st wall section 73 Second wall section 74 Bottom 10 Top plate 13. Operating Unit 14 Exhaust vents 20 Heating cabinet 21 Main body 22 Opening 23 Grill Door 30 First mounting section 40 Second mounting section 41 Second holding stand 411 Wall 42 Protrusion 50 Fan device 51 Fans 52 Fan Case 53 Rotation axis 54 Impeller 55 Air outlet 551 First air blower 552 Second air blower unit 56 Air intake 57 components 100 Second control board 110 Heating coil
Claims
1. At least one first heating coil, A first control board for controlling the first heating coil, A fan device comprising a fan that rotates around a rotation axis extending in the thickness direction of the first control board and is capable of blowing air in the plane direction of the first control board, and a fan case that houses the fan inside, wherein the fan case has an air outlet that connects the inside and outside of the fan case, An outer case that houses the first heating coil, the first control board, and the fan device inside Equipped with, The aforementioned outer casing case, A first mounting portion located inside the outer casing, to which a second heating coil different from the first heating coil can be attached, A second mounting portion located inside the outer casing, on which a second control board for controlling the second heating coil can be attached, It has, The aforementioned air outlet, A first air blowing unit directs the airflow from the fan toward the first control board, A second air blower is located downstream of the first air blower in the air outlet in the direction of rotation of the fan, and directs the air blown by the fan toward the second mounting portion. A cooking appliance having, A first retaining base is provided inside the outer casing and holds the first control board, A second retaining base is provided on the second mounting portion, is located downstream of the first retaining base in the rotational direction, adjacent to the first retaining base in the surface direction, and capable of holding the second control board. Equipped with, The first retaining base is, It has a retaining piece that is positioned opposite to the second retaining base in the plane direction and away from the bottom of the outer case in the thickness direction, and extends along the plane direction, The second retaining base is, The protrusion is located in the plane direction opposite to the retaining piece, protrudes toward the retaining piece along the plane direction, and is located between the retaining piece and the bottom of the outer case, The second retaining base is attached to the outer case by having the protruding portion sandwiched between the retaining piece and the bottom of the outer case, and is a heating appliance.
2. The heating appliance according to claim 1, wherein the opening area occupied by the first air blowing section of the air outlet is larger than the opening area occupied by the second air blowing section of the air outlet.
3. The heating appliance according to claim 1 or 2, wherein the power consumption of the first control board is greater than the power consumption of the second control board.
4. The outer casing is located above the aforementioned thickness direction and includes a top plate having an exhaust port, The heating appliance according to claim 1 or 2, wherein, when viewed along the thickness direction, the second mounting portion is located on a straight line passing through the rotation axis and the exhaust port.
5. The outer case is equipped with a heating chamber located below it in the thickness direction, The heating appliance according to claim 1 or 2, wherein the second mounting portion is located in a position that does not overlap with the heating chamber when viewed along the thickness direction.
6. The outer case is equipped with a heating chamber located below it in the thickness direction, The heating chamber has an opening and a door at its front that opens and closes the opening. The first air blower is located closer to the front of the heating chamber than the first control board in the planar direction and in the direction from the front to the rear of the heating chamber. Inside the outer casing, an airflow path is provided in which the air blown by the fan flows from the first air blowing section through the first control board toward the rear of the heating chamber. The heating appliance according to claim 1 or 2, wherein the length in the width direction of the first control board intersecting the direction from the front to the rear of the heating chamber is 400 mm or less.
7. The outer casing is equipped with a heating chamber located below it, The first control board is provided with a heatsink on which an insulated gate bipolar transistor is attached. The heating appliance according to claim 1 or 2, wherein the heat sink is positioned such that, when viewed along the thickness direction, at least a portion of it does not overlap with the heating chamber.
8. The aforementioned plane direction includes a first direction and a second direction intersecting the first direction. The fan device is located at one end in the first direction and one end in the second direction of the outer casing. The first control board is located closer to the other end of the outer casing in the first direction than the fan device, The heating appliance according to claim 1 or 2, wherein the second mounting portion is located closer to the other end of the outer casing in the second direction than the fan device.