Cooker

Abstract

To provide a cooker that can enhance evaporation efficiency.SOLUTION: A cooker 100 according to the present disclosure comprises a cooking chamber 10, and an evaporation part 40. The cooking chamber 10 heats an object to be heated. The evaporation part 40 generates steam by heating water. The cooking chamber 10 comprises a bottom wall 104. The evaporation part 40 comprises a storage part 41 and a heating part 42. The storage part 41 stores the water. The heating part 42 is integrated with the storage part 41. The evaporation part 40 is connected to the bottom wall 104. The bottom wall 104 comprises an opening 108 exposing the storage part 41.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present invention relates to a cooking heater.

Background Art

[0002] Patent Document 1 discloses an example of a cooking heater that generates steam by heating a heater.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the cooking heater of Patent Document 1, a heater is housed in the internal space of a steam pan. The water stored in the steam pan is evaporated by the radiant heat of the heater. Since the radiant heat from the heater is dispersed to other than the steam pan through the air, there is a risk of heat loss. That is, it is not easy to improve the evaporation efficiency.

[0005] An object of the present disclosure is to provide a cooking heater capable of improving evaporation efficiency.

Means for Solving the Problems

[0006] The cooking heater of the present disclosure includes a cooking chamber and an evaporation unit. The cooking chamber heats an object to be heated. The evaporation unit heats water to generate steam. The cooking chamber has a bottom wall. The evaporation unit has a storage unit and a heating unit. The storage unit stores the water. The heating unit is integrated with the storage unit. The evaporation unit is connected to the bottom wall. The bottom wall has an opening exposing the storage unit.

Effects of the Invention

[0007] According to the cooking appliance of the present disclosure, the evaporation efficiency can be enhanced.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Embodiments for Carrying Out the Invention

[0009] Hereinafter, an embodiment of a cooking appliance 100 according to the present disclosure will be described with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals and the description thereof will not be repeated.

[0010] With reference to FIGS. 1 to 3, the cooking appliance 100 according to the present embodiment will be described. FIG. 1 is a perspective view of the cooking appliance 100 in the present embodiment. FIG. 2 is a sectional view taken along line II-II of FIG. 1. FIG. 3 is a sectional view taken along line III-III of FIG. 1.

[0011] The cooking appliance 100 cooks a heated object. The heated object is, for example, food. As shown in FIG. 1, the cooking appliance 100 includes a cooking chamber 10, a housing 1, and an operation panel section 17.

[0012] In the present embodiment, the side where the operation panel unit 17 of the cooking appliance 100 is disposed in a plan view is defined as the front X1 (see FIG. 3), and the opposite side is defined as the rear X2. Also, when the cooking appliance 100 is viewed from the front X1, the left side is defined as the left Y1, and the opposite side is defined as the right Y2. Further, in the vertical direction Z orthogonal to the front-rear direction X and the left-right direction Y of the cooking appliance 100, the side where the operation panel unit 17 is disposed is defined as the upper Z1, and the opposite side is defined as the lower Z2.

[0013] The housing 1 houses the cooking chamber 10. The housing 1 is a rectangular parallelepiped with an opening at the front X1. The housing 1 is closed by a door 18. The door 18 is rotatably supported about a rotation axis whose left Y1 end extends in the vertical direction Z. The door 18 opens and closes the cooking chamber 10. The housing 1 has an upper outer wall 11, a left outer wall 12, a right outer wall 13, a bottom outer wall 14, a front outer wall 15, and a rear outer wall 16.

[0014] As shown in FIGS. 2 and 3, a placement portion 182 is disposed inside the housing 1. An object to be heated is placed on the placement portion 182. Note that the placement portion 182 may be omitted from inside the housing 1.

[0015] The cooking chamber 10 forms a storage space for an object to be heated inside the cooking appliance 100. Food, which is an object to be heated, is stored inside the cooking chamber 10. The cooking chamber 10 heats the object to be heated.

[0016] The operation panel unit 17 receives operations from the user. The operation panel unit 17 is disposed above Z1 and in front of X1 of the cooking chamber 10.

[0017] In this embodiment, the cooking heater 100 has, for example, a range heating mode, a grill heating mode, and an oven heating mode as cooking modes. The range heating mode is a mode in which the object to be heated is cooked mainly by radiating microwaves into the cooking chamber 10. The grill heating mode is a mode in which the object to be heated is cooked mainly using radiant heating. The oven heating mode is a mode in which the object to be heated is cooked mainly using convection heating. Note that the cooking heater 100 does not necessarily have all the cooking modes. For example, the cooking heater 100 may not include the range heating mode.

[0018] As shown in FIG. 2, the cooking chamber 10 has an upper wall 101, a left wall 102, a right wall 103, a bottom wall 104, and a rear wall 105. The cooking chamber 10 has a first storage portion 10A inside.

[0019] An air inlet 106 and an air outlet 107 are formed in the rear wall 105. The air inlet 106 is formed, for example, in the central portion of the rear wall 105. The air inlet 106 sucks the air in the cooking chamber 10.

[0020] The air outlet 107 blows air into the cooking chamber 10. A plurality of air outlets 107 are formed around the air inlet 106. The air outlet 107 includes, for example, an upper air outlet 107a, a lower air outlet 107b, a left air outlet 107c, and a right air outlet 107d. The upper air outlet 107a is disposed in a region Z1 above the air inlet 106, and the lower air outlet 107b is disposed in a region Z2 below the air inlet 106. The left air outlet 107c is disposed in a region Y1 to the left of the air inlet 106, and the right air outlet 107d is disposed in a region Y2 to the right of the air inlet 106.

[0021] As shown in FIG. 3, the cooking heater 100 has a duct 2. The duct 2 allows air to flow. The duct 2 communicates with the outside through an intake portion 211. The duct 2 flows the air that has entered from the outside through the intake portion 211 into the interior of the cooking heater 100. The air that has entered the interior of the cooking heater 100 cools various electrical components that make up the cooking heater 100.

[0022] The duct 2 is formed between the housing 1 and the cooking chamber 10. The duct 2 has a first duct 21 and a second duct 22. The first duct 21 constitutes the upstream portion of the duct 2, and the second duct 22 constitutes the downstream portion of the duct 2.

[0023] As shown in FIG. 3, the first duct 21 is located between the bottom outer wall 14 of the cooking chamber 10 and the bottom wall 104 of the housing 1. An intake portion 211 for sucking air is arranged at the front end X1 of the first duct 21. The first duct 21 extends along the front-rear direction X. The first duct 21 allows air to flow from the front X1 to the rear X2.

[0024] The second duct 22 is located between the rear outer wall 16 and the rear wall 105. An exhaust portion 221 for discharging air is arranged at the rear end X2 of the second duct 22. The second duct 22 is connected to the rear end X2 of the first duct 21. The second duct 22 extends along the vertical direction Z. The second duct 22 allows air to flow from the lower Z2 to the upper Z1. The air flowing through the second duct 22 is discharged to the outside through the exhaust portion 221.

[0025] The filter 3 filters dust contained in the air. The filter 3 is, for example, a rectangular non-woven fabric extending in the left-right direction Y. The filter 3 is arranged so as to block the intake portion 211. That is, the filter 3 is arranged at the intake portion 211 to filter the air.

[0026] With reference to FIGS. 2 and 3, the cooking chamber 10 will be further described. The cooking chamber 10 has a microwave supply unit 50, a convection unit 60, and a second fan 23.

[0027] The microwave supply unit 50 generates microwaves and supplies the microwaves to the cooking chamber 10. As shown in FIGS. 2 and 3, the microwave supply unit 50 has an antenna 51, a waveguide 52, and a magnetron 53. The magnetron 53 corresponds to, for example, a "high-frequency generation unit".

[0028] Antenna 51 stirs the microwaves. Antenna 51 radiates uniform microwaves toward the cooking chamber 10. A tray 54 is disposed above the antenna 51. The antenna 51 is housed in the first housing portion 10A.

[0029] The first housing portion 10A is disposed at the central portion of the bottom wall 104. The first housing portion 10A is a bottomed cylindrical shape with an open upper portion. The opening above the first housing portion 10A in the Z1 direction is blocked by the tray 54. Considering the microwave permeability, the tray 54 is made of a ceramic material or a glass material.

[0030] The convection unit 60 circulates air inside the cooking chamber 10. As shown in FIG. 3, the convection unit 60 includes a first fan 61, a fan heater 62, and a cover 63.

[0031] The cover 63 forms a second housing portion 10B between itself and the rear wall 105. The second housing portion 10B houses the first fan 61 and the fan heater 62. The cover 63 is fixed to the surface of the rear wall 105 in the X2 direction. A fan power supply portion 621 and a first drive portion 611 are disposed behind the cover 63 in the X2 direction.

[0032] The first fan 61 is a centrifugal fan. The first fan 61 is disposed behind the rear wall 105. The first fan 61 sucks air from the suction port 106 and blows out air from the blowout port 107. The first fan 61 circulates the heated air inside the cooking chamber 10. The first fan 61 corresponds to, for example, a "blowing portion".

[0033] The first drive portion 611 drives the first fan 61. As shown in FIG. 3, the driven first fan 61 sucks the air inside the cooking chamber 10 into the second housing portion 10B through the suction port 106. The driven first fan 61 blows out the air inside the second housing portion 10B into the cooking chamber 10 through the blowout port 107.

[0034] The fan heater 62 heats the interior of the cooking chamber 10. The fan heater 62 includes a first fan heater 62a disposed above the second housing portion 10B and a second fan heater 62b disposed below the second housing portion 10B. The fan power supply unit 621 supplies power to the first fan heater 62a and the second fan heater 62b. The energized first fan heater 62a and second fan heater 62b heat the air in the second housing portion 10B, thereby heating the interior of the cooking chamber 10.

[0035] As shown in FIG. 3, the second fan 23 is disposed in the first duct 21. Specifically, the second fan 23 is located on the downstream side in the first duct 21 of the filter 3. The second fan 23 is driven by the second drive unit 231. The driven second fan 23 sucks in outside air from the intake portion 211. That is, the second fan 23 sucks air into the first duct 21 through the filter 3.

[0036] Referring to FIG. 4, the cooking heater 100 will be further described. FIG. 4 is a diagram showing a cross section of the evaporation unit 40. The cooking heater 100 includes an evaporation unit 40, a closing member 31, and a shield 32. The shield 32 corresponds to, for example, an "electromagnetic wave leakage prevention member".

[0037] The evaporation unit 40 heats water to generate steam. The generated steam heats the object to be heated. As shown in FIG. 4, the evaporation unit 40 is connected to the rear wall 105 (see FIG. 3). The evaporation unit 40 has a storage portion 41 and a heating portion 42.

[0038] As shown in FIG. 4, the storage portion 41 stores water. The storage portion 41 is disposed, for example, between the tray 54 and the rear wall 105. The storage portion 41 is made of metal, for example, a long and narrow plate-shaped and concave stainless steel. An opening 108 that communicates the inside and outside of the cooking chamber 10 is formed in the rear wall 105 between the tray 54 and the rear wall 105. The storage portion 41 is disposed so as to close the opening 108. In other words, the rear wall 105 has an opening 108 that exposes the storage portion 41.

[0039] The heating unit 42 heats water. The heating unit 42 causes water to evaporate by, for example, energization. The heating unit 42 is integrated with the storage unit 41. Thereby, the evaporation unit 40 can enhance the evaporation efficiency.

[0040] When the storage unit 41 and the heating unit 42 are separated from each other, the heat of the heating unit 42 is transmitted to the storage unit 41 by radiation from the heating unit 42. The heat is dispersed in the air between the storage unit 41 and the heating unit 42 and is also dispersed outside the storage unit 41, and the heat transmitted to the storage unit 41 decreases. When the storage unit 41 and the heating unit 42 are integrated, the heat of the heating unit 42 is transmitted to the storage unit 41 by conduction from the heating unit 42. Therefore, in the evaporation unit 40, the heat dispersed outside the storage unit 41 is less than in the case where the storage unit 41 and the heating unit 42 are separated. That is, the evaporation unit 40 in which the storage unit 41 is integrated with the heating unit 42 has higher thermal efficiency than the evaporation unit in which the storage unit 41 and the heating unit 42 are separated. In the present embodiment, the integration of the storage unit 41 and the heating unit 42 means that the heat of the heating unit 42 is transmitted to the storage unit 41 by conduction rather than radiation.

[0041] The heating unit 42 includes a heater 421 and a covering portion 422.

[0042] The heater 421 generates heat by energization. The heater 421 heats the storage unit 41. The heater 421 is, for example, a sheathed heater, a plate heater, or the like. The heater 421 is disposed along the lower surface of the bottom of the storage unit 41. The length of the heater 421 in the left-right direction is substantially equal to the length of the storage unit 41 in the left-right direction.

[0043] The covering part 422 covers the heater 421. The covering part 422 covers substantially the entire outer surface of the heater 421. The covering part 422 fixes the heater 421 to the bottom of the storage part 41. The covering part 422 is made of metal, for example, a casting of an aluminum alloy. The heater 421 is cast into the covering part 422. Therefore, the covering part 422 is in surface contact with the heater 421. In other words, the covering part 422 is in close contact with the heater 421. The covering part 422 stores heat. Since the metal covering part 422 has a larger heat capacity of the material than the non-metallic material, sensible heat storage using specific heat is performed.

[0044] The covering part 422 is in surface contact with the bottom of the storage part 41. In other words, the covering part 422 is in close contact with the bottom of the storage part 41. The covering part 422 is crimped to the bottom of the storage part 41 to form a composite layer. As a result, the covering part 422 is bonded to the storage part 41. Thereby, the evaporation efficiency can be further improved. Specifically, the heater 421 and the covering part 422 are in surface contact, and the covering part 422 and the storage part 41 are in surface contact. Therefore, the heat dispersed in the air can be reduced, and the thermal conductivity from the heater 421 to the storage part 41 can be increased.

[0045] Next, with reference to FIGS. 2 to 4, the evaporation part 40 will be described in detail. As shown in FIGS. 2 to 4, the evaporation part 40 further includes a connecting part 43, a heat insulating part 44, and a water supply part 45.

[0046] The connecting part 43 connects the storage part 41 to the bottom wall 104. That is, the evaporation part 40 has a connecting part 43 connected to the bottom wall 104. As shown in FIG. 4, the connecting part 43 has a storage opening 431. The storage opening 431 penetrates the connecting part 43 in the vertical direction. The storage opening 431 is configured to have substantially the same shape as the opening 108. The edge of the storage opening 431 is connected to the edge of the storage part 41. In the present embodiment, the storage part 41 and the connecting part 43 are configured as a single component. Note that the storage part 41 and the connecting part 43 may be configured as separate components and each component may be connected.

[0047] The connecting part 43 is connected to the lower surface of the bottom wall 104 with the opening 108 and the storage opening 431 being overlapped. The connecting part 43 is fixed to the bottom wall 104 by, for example, a plurality of fixing members 34. Between the connecting part 43 and the bottom wall 104, a closing member 31 and a shield 32 are arranged.

[0048] The closing member 31 closes the space between the connecting part 43 and the bottom wall 104. Thereby, the closing member 31 can suppress problems caused by steam intrusion. The closing member 31 suppresses the leakage of steam in the cooking chamber 10 to the space between the housing 1 and the cooking chamber 10. The closing member 31 suppresses the deterioration of parts caused by the adhesion of moisture by suppressing the intrusion of steam. The closing member 31 is, for example, an annular O-ring or an annular rubber packing. The closing member 31 is arranged between the opening 108 (storage opening 431) and the plurality of fixing members 34.

[0049] The shield 32 closes the space between the connecting part 43 and the bottom wall 104. The shield 32 is arranged on the outer peripheral side of the closing member 31. Thereby, the shield 32 can suppress problems associated with the leakage of electromagnetic waves. The shield 32 suppresses the leakage of electromagnetic waves in the cooking chamber 10 to the space between the housing 1 and the cooking chamber 10. The shield 32 is, for example, a metal electromagnetic wave shielding member such as an annularly configured metal mesh. The shield 32 may be a member with a high electromagnetic wave shielding rate, and may be other than a metal mesh.

[0050] The heat insulating part 44 insulates the heating part 42. The heat insulating part 44 covers the outer periphery of the covering part 422. Specifically, the heat insulating part 44 covers substantially the entire outer surface corresponding to the periphery of the covering part 422 except for the upper part. Thereby, the heat insulating part 44 can efficiently transfer the heat of the heating part 42 to the storage part 41. That is, since the heat insulating part 44 covers the periphery of the covering part 422 except for the upper part, it suppresses the heat that is dispersed outside the storage part 41. The heat insulating part 44 is an inorganic fiber-based heat insulating material, for example, glass wool. Note that the heat insulating part 44 is not limited to glass wool. The heat insulating part 44 may be rock wool or a foamed plastic-based heat insulating material.

[0051] The water supply unit 45 supplies water to the storage unit 41. As shown in FIGS. 2 and 4, the water supply unit 45 includes a tank 451, a pump 452, and a pipe 453.

[0052] The tank 451 stores water. The tank 451 is detachably accommodated, for example, in the space between the left outer wall 12 and the left wall 102.

[0053] The pump 452 discharges water. The pump 452 is disposed in the space between the left outer wall 12 and the left wall 102. The pump 452 is disposed at a position connected to the mounted tank 451. When the tank 451 is mounted, the suction port (not shown) of the pump 452 is connected to the inside of the tank 451.

[0054] The pipe 453 communicates the discharge port (not shown) of the pump 452 with the inside of the storage unit 41.

[0055] With reference to FIGS. 2 and 3, the cooking heater 100 will be further described. The cooking heater 100 has an induction unit 33.

[0056] As shown in FIGS. 2 and 3, the induction unit 33 induces air. The induction unit 33 is disposed at a position behind the tray 54 and in front of the evaporation unit 40. The induction unit 33 induces the air blown toward the storage unit 41 to the suction port 106.

[0057] In front of the lower air outlet 107b, the upper end portion of the induction unit 33 is located behind the lower end portion of the induction unit 33. Among the plurality of air outlets 107, the lower air outlet 107b blows air toward the storage unit 41. The lower air outlet 107b corresponds to, for example, the "first air outlet".

[0058] As shown in FIG. 3, the first fan 61 generates an air flow F1 to suck the air in the cooking chamber 10. The air flow F1 flows into the second storage portion 10B through the suction port 106. A part of the air flow F1 sucked by the first fan 61 is blown out from the lower air outlet 107b. The air flow F2 is blown out from the lower air outlet 107b toward the storage portion 41. The air flow F2 contains the vapor generated in the storage portion 41. The air flow F2 is guided by the guiding portion 33 to generate an air flow F3. The air flow F3 is refluxed to the suction port 106 by the guiding portion 33. Therefore, the first fan 61 can circulate the air containing the vapor.

[0059] Among the plurality of air outlets 107, the upper air outlet 107a is disposed on the opposite end side to the side where the lower air outlet 107b is disposed with respect to the suction port 106. Therefore, the air with increased vapor can be supplied to the object to be heated. The upper air outlet 107a corresponds to, for example, the "second air outlet".

[0060] Referring to FIG. 5, the control system of the cooking appliance 100 will be described. FIG. 5 is a block diagram showing the functional configuration of the cooking appliance 100. As shown in FIG. 5, the cooking appliance 100 further includes a control unit 70, a storage unit 71, and an energization unit 423.

[0061] The control unit 70 is a hardware circuit. The hardware circuit includes a processor such as a CPU (Central Processing Unit). The control unit 70 controls the first drive unit 611, the fan energization unit 621, the second drive unit 231, the microwave supply unit 50, the operation panel unit 17, the storage unit 71, the energization unit 423, and the pump 452 by executing the control program stored in the storage unit 71. The control unit 70 controls the heating process of the heater 421 by controlling the energization to the energization unit 423. The control unit 70 is an example of the heating control unit of the present invention.

[0062] The control unit 70 performs the main heat treatment and the preheating treatment. The main heat treatment heats the object to be heated via steam. The preheating treatment stores heat in the covering portion 422 by heating the heater 421 in a situation where the main heat treatment is not being performed, in other words, after the completion of the main heat treatment. That is, the preheating treatment is a process that does not heat the object to be heated. Thereby, when performing the main heat treatment, steam can be generated early, and the cooking time can be shortened. Specifically, steam can be generated in a state where the temperature of the object to be heated is low, and the heating efficiency can be improved.

[0063] The storage unit 71 is composed of a RAM (Random Access Memory) and a ROM (Read Only Memory). The storage unit 71 stores a control program for controlling the operations of each part of the cooking heater 100. The storage unit 71 stores the setting information input by operating the operation panel unit 17.

[0064] The energization unit 423 energizes the heater 421. The energized heater 421 heats the covering portion 422 to conduct heat to the storage portion 41. The heated storage portion 41 heats the stored water.

[0065] Next, with reference to FIG. 6, the processing flow of the cooking heater 100 will be described. FIG. 6 is a flowchart showing the processing of the evaporation unit 40 of the cooking heater 100. This processing is always executed at a predetermined cycle.

[0066] As shown in FIG. 6, in step S1, the control unit 70 reads various information. The process proceeds to step S2.

[0067] In step S2, the control unit 70 determines whether there is an execution command for the main heat treatment. The control unit 70 determines the execution command for the main heat treatment based on the input signal from the operation panel unit 17. If the control unit 70 determines that there is no execution command for the main heat treatment (No in step S2), the process proceeds to step S6. If the control unit 70 determines that there is an execution command for the main heat treatment (Yes in step S2), the process proceeds to step S3.

[0068] In step S3, the control unit 70 calculates the main heating equivalent power W1. The main heating equivalent power W1 is calculated as the difference between the main heating required power W0 and the heat storage equivalent power W20. Note that the main heating required power W0 represents the power corresponding to the amount of heat for generating the steam required for the main heating of a predetermined cooking, and the heat storage equivalent power W20 represents the power corresponding to the amount of heat stored in the covering portion 422. The process proceeds to step S4.

[0069] In step S4, the control unit 70 controls the energization unit 423 so that the main heating equivalent power W1 is supplied to the heater 421. Therefore, at the start of the main heating process, the heater 421 is supplied with power that is less than the heat storage equivalent power W20 by that amount. The process proceeds to step S5.

[0070] In step S5, the control unit 70 controls the pump 452 so that water is supplied to the storage unit 41, and the process ends. The control unit 70 operates the heater 421 and the pump 452 in accordance with the start timing of the main heating process that requires steam.

[0071] If the answer in step S2 is No, in step S6, the control unit 70 determines whether or not the amount of heat stored in the covering portion 422 is equal to or greater than the target heat storage amount. When performing a predetermined cooking, for example, assuming that 10 g / min of steam is required, a supply of the main heating required power of 450 W (W0) is necessary to generate the steam required for the main heating of the predetermined cooking. Therefore, before the execution of the main heating process, the covering portion 422 stores heat. In the present embodiment, the covering portion 422 stores heat with 1 / 3 of the amount of heat required for generating the steam required for the main heating as the target heat storage amount. If the control unit 70 determines that the amount of heat stored is not equal to or greater than the target heat storage amount (No in step S6), the process proceeds to step S8. If the control unit 70 determines that the amount of heat stored is equal to or greater than the target heat storage amount (Yes in step S6), the process proceeds to step S7.

[0072] In step S7, the control unit 70 controls the energization unit 423 to stop the power supply to the heater 421. This prevents the object to be heated from being heated unnecessarily. The process ends.

[0073] In step S8, the control unit 70 controls the energization unit 423 so that the target heat storage equivalent power W2 is supplied to the heater 421. The target heat storage equivalent power W2 indicates the power corresponding to the target heat storage amount. The process ends.

[0074] As described above, in order to execute the preheating process of not heating the object to be heated after the completion of this heating process, the early generation of steam can be achieved. Further, after the target heat storage amount is stored, the energization is stopped, thereby avoiding unnecessary heating of the object to be heated.

[0075] As described above, the embodiments of the present invention have been described with reference to the drawings. However, the present invention is not limited to the above-described embodiments, and can be implemented in various forms without departing from the gist thereof. The drawings are schematically shown mainly for each component for easy understanding, and the thickness, length, number, etc. of each illustrated component are different from the actual ones for convenience of drawing creation. Further, the materials, shapes, dimensions, etc. of each component shown in the above embodiments are examples and are not particularly limited, and various changes can be made without substantially departing from the effects of the present invention.

[0076] (1) In this embodiment, the heater 421 is cast in the covering portion 422 and integrated with the storage portion 41, but the present disclosure is not limited to this. The storage portion 41 and the heater 421 may be configured as a single member. Further, although the heater 421 is cast in an aluminum alloy, the present disclosure is not limited to this. Any metal material having excellent thermal conductivity and heat storage properties can be arbitrarily selected.

[0077] (2) In this embodiment, in a situation where this heating is not executed, when the heat storage amount of the covering portion 422 is equal to or more than the target heat storage amount, the energization of the heater 421 is stopped, but the present disclosure is not limited to this. It is also possible to supply standby power to the heater 421 on the premise of avoiding excessive heat supply to the object to be heated.

[0078] (3) In this embodiment, a side-opening type door 18 rotatably supported about a vertical axis is disclosed, but the present invention is not limited thereto. The door 18 may be a vertical-opening type door rotatably supported about a horizontal axis. Further, the door 18 may be a drawer type door.

[0079] (4) In this embodiment, an example in which the cooking heater 100 has "range heating mode", "oven heating mode" and "grill heating mode" as cooking heating modes is disclosed, but the present invention is not limited thereto. The cooking heater 100 may be provided with any one or any two of the heating modes.

Industrial Applicability

[0080] The present invention can be used in the field of cooking heaters.

Explanation of Reference Numerals

[0081] 10: Cooking chamber 31: Closing member 32: Shield (radio wave leakage prevention member) 33: Induction part 40: Evaporation part 41: Storage part 42: Heating part 43: Connecting part 44: Heat insulation part (heat insulating material) 70: Control part 100: Cooking heater 104: Bottom wall 105: Rear wall 106: Suction port 107: Air outlet 108: Opening 421: Heater 422: Coating part

Claims

1. A cooking chamber for heating an object to be heated, and an evaporation section for heating water to generate steam are provided, wherein the cooking chamber has a bottom wall, the evaporation section has a storage section for storing the water, and a heating section integrated with the storage section , the evaporation section is connected to the bottom wall, and the bottom wall has an opening for exposing the storage section, a cooking heater.

2. Further comprising a closing member, the evaporation section has a connecting section connected to the bottom wall, and the closing member closes the space between the bottom wall and the connecting section. The cooking heater according to Claim 1.

3. Further comprising a high-frequency generation section and a radio wave leakage prevention member disposed on the outer peripheral side of the closing member. The cooking heater according to Claim 2.

4. The heating section has a heater for heating the storage section and a covering section for covering the heater , the heater and the covering section are in close contact with each other, and the covering section is coupled to the storage section. The cooking heater according to Claim 1.

5. The evaporation section further has a heat insulating material covering the outer periphery of the covering section. The cooking heater according to Claim 4.

6. Further comprising a heating control section for controlling the heating of the heater, the heating control section performs a main heating process for heating the object to be heated and a preheating process for not heating the object to be heated after the completion of the main heating process, and stores heat in the covering section by heating the heater during the preheating process. The cooking heater according to Claim 4.

7. Further comprising a blowing section, the cooking chamber further has a rear wall, the blowing section is disposed behind the rear wall, the rear wall has a suction port for sucking air in the cooking chamber and a plurality of blowout ports for blowing air into the cooking chamber , the plurality of blowout ports include a first blowout port for blowing air toward the storage section, and has a guiding section for guiding the air blown from the first blowout port toward the storage section to the suction port. The cooking heater according to any one of Claims 1 to 6.

8. The plurality of blowout ports have a second blowout port disposed on the side opposite to the side where the first blowout port is disposed with respect to the suction port. The cooking heater according to Claim 7. ​

Images