Heating cooker

Abstract

To provide a heating cooker capable of easily removing oil from air.SOLUTION: A heating cooker 100 includes a duct 2 and a fan 30. The duct 2 communicates with the outside via an intake part 211. The fan 30 is arranged inside the duct 2, and sucks air. The fan 30 has a rotary shaft 31, a blade 33, an inhibition part 351, and a storage part 352. The blade part 33 is fixed to the rotary shaft 31. The inhibition part 351 is arranged further outside in a radial direction of the rotary shaft 31 than the blade 33. The storage part 352 stores an oil content adhering to the inhibition part 351.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to a cooking device. [Background technology]

[0002] For example, Patent Document 1 discloses an example of a cooking device that generates microwaves to be irradiated into a heating chamber. The cooking device of Patent Document 1 includes a communication passage, a cooling fan, and a maze trap. The communication passage has an intake port and an exhaust port. The cooling fan draws in air. The maze trap separates oil from the air by directing air from the intake port to the exhaust port. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2017-207260 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the cooking device disclosed in Patent Document 1, the labyrinth trap is disposed in the device chamber of the cooking device. Therefore, in Patent Document 1, the structure of the cooking device becomes complicated, and oil cannot be easily removed from the air.

[0005] An object of the present disclosure is to provide a cooking device that can easily remove oil from air. [Means for solving the problem]

[0006] The cooking device of the present disclosure includes a duct and a fan. The duct communicates with the outside via an intake section. The fan is disposed within the duct and draws in air. The fan has a rotating shaft, blades, a wall section, and a storage section. The blades are fixed to the rotating shaft. The wall section is disposed radially outward of the rotating shaft relative to the blades. The storage section stores oil adhering to the wall section. Effect of the Invention

[0007] According to the cooking device of the present disclosure, oil can be easily removed from the air. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view of a cooking device according to an embodiment of the present disclosure. [Diagram 2] FIG. 2 is a cross-sectional view taken along line II-II of FIG. [Diagram 3] FIG. 2 is a cross-sectional view taken along line III-III in FIG. [Figure 4] FIG. [Diagram 5] 5 is a cross-sectional view taken along line VV in FIG. 4. [Figure 6] 13A and 13B are diagrams illustrating modified examples of the cooling fan. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, an embodiment of a cooking device 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 characters and description thereof will not be repeated.

[0010] A cooking device 100 according to the present embodiment will be described with reference to Fig. 1 to Fig. 3. Fig. 1 is a perspective view of the cooking device 100 according to the present embodiment. Fig. 2 is a cross-sectional view taken along line II-II in Fig. 1. Fig. 3 is a cross-sectional view taken along line III-III in Fig. 1.

[0011] The cooking device 100 cooks an object to be heated. The object to be heated is, for example, food. As shown in FIG. 1, the cooking device 100 includes a heating chamber 1A, a housing 1, and an operation panel unit 17.

[0012] In this embodiment, when viewed from a user standing in front of the cooking device 100, the side on which the operation panel unit 17 of the cooking device 100 is located is defined as the front X1, and the opposite side is defined as the rear X2. In addition, the left side of the cooking device 100 when viewed from the front X1 is defined as the left side Y1, and the opposite side is defined as the right side Y2. In addition, in the up-down direction Z perpendicular to the front-rear direction X and the left-right direction Y of the cooking device 100, the side on which the operation panel unit 17 is located is defined as the upper side Z1, and the opposite side is defined as the lower side Z2. Note that these directions do not limit the direction of the cooking device 100 of the present invention when in use.

[0013] The housing 1 houses the heating chamber 1A. The housing 1 is a rectangular parallelepiped object with an opening at the front X1. The housing 1 is closed by a door 18. The left Y1 end of the door 18 is supported so as to be rotatable about a vertical axis. As shown in FIG. 1, the housing 1 has an upper wall 11, a left wall 12, a right wall 13, a bottom wall 14, a front wall 15, and a rear wall 16.

[0014] 2 and 3, a placement section 182 is disposed inside the housing 1. An object to be heated is placed on the placement section 182. The placement section 182 may be omitted. When the placement section 182 is omitted, the object to be heated is placed on the tray 44 or the bottom wall 104.

[0015] The heating chamber 1A forms a space for accommodating the cooking device 100. The heating chamber 1A is a box-shaped member. The heating chamber 1A has a heating chamber 10 therein. An object to be heated is accommodated in the heating chamber 10. The heating chamber 1A heats the accommodated object to be heated by microwaves.

[0016] In this embodiment, the cooking device 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 an object to be heated is cooked mainly by radiating microwaves into the heating chamber 10. The grill heating mode is a mode in which an object to be heated is cooked mainly by using radiant heating. The oven heating mode is a mode in which an object to be heated is cooked mainly by using convection heating. Note that the cooking device 100 does not need to have all of the cooking modes.

[0017] The operation panel unit 17 receives operations from a user. The operation panel unit 17 is disposed in front of the heating chamber 10 at X1. In other words, the operation panel unit 17 is disposed in front of the heating chamber 1A at X1. The operation panel unit 17 is located in the upper Z1 side portion of the cooking device 100.

[0018] 2, the heating chamber 1A has an upper wall 101, a left wall 102, a right wall 103, a bottom wall 104, and a rear wall 105. The heating chamber 1A has a first storage section 10A therein. An equipment chamber 3 is disposed between the housing 1 and the heating chamber 1A.

[0019] The rear wall 105 has an inlet 106 and an outlet 107. The inlet 106 is formed, for example, in the central portion of the rear wall 105. A plurality of outlets 107 are formed around the periphery of the inlet 106. The outlets 107 have a plurality of holes arranged, for example, in a left Y1 region, a right Y2 region, an upper Z1 region, and a lower Z2 region of the inlet 106.

[0020] As shown in FIG. 3, the cooking device 100 has a duct 2.

[0021] The duct 2 allows air to flow. The duct 2 communicates with the outside via the intake section 211. The duct 2 allows air to flow for heat exchange with the electric components to the inside of the cooking device 100, specifically, to the equipment chamber 3. The air cools the electric components. The duct 2 is formed between the housing 1 and the heating chamber 1A. 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. The first duct 21 corresponds to an example of a "duct".

[0022] 3, the first duct 21 is located between the bottom wall 14 and the bottom wall 104. An intake section 211 that draws in air is disposed at the front X1 side end of the first duct 21. The first duct 21 extends along the front-rear direction X. The first duct 21 flows air from the front X1 to the rear X2.

[0023] The second duct 22 is located between the rear wall 16 and the rear wall 105. An exhaust section 221 that exhausts air is disposed at the rear X2 side end of the second duct 22. The second duct 22 is connected to the rear X2 side end of the first duct 21. The second duct 22 extends along the up-down direction Z. The second duct 22 flows air from the lower side Z2 to the upper side Z1. The air flowing through the second duct 22 is exhausted to the outside via the exhaust section 221.

[0024] The cooking device 100 will be further described with reference to Figures 4 and 5. As shown in Figure 3, the cooking device 100 has a fan 30, a microwave supplying section 40, and a convection unit 50.

[0025] The fan 30 pushes out air. The fan 30 is, for example, a centrifugal fan. That is, the fan 30 pushes out air in a centrifugal direction, and as a result, air is sucked in from the upstream side. As shown in FIG. 3, the fan 30 is disposed in the first duct 21. As shown in FIGS. 4 and 5, the fan 30 has a rotating shaft 31, a drive unit 32, a blade unit 33A, a support unit 34, and a casing 35.

[0026] The rotating shaft 31 is driven around its axis by the driving unit 32. The axial direction of the rotating shaft 31 is along the vertical direction Z. The rotating shaft 31 has a blade unit 33A fixed thereto. The blade unit 33A sucks in air and applies centrifugal force to the air. The blade unit 33A has a blade 33 and a fixing unit 311.

[0027] The fixing portion 311 fixes the blade 33. The fixing portion 311 fixes, for example, a plurality of blades 33. The fixing portion 311 is a circular plate material. The fixing portion 311 has a surface that intersects with the rotation shaft 31, specifically, that is perpendicular to the rotation shaft 31. The fixing portion 311 fixes the end portion of the blade 33 on the lower Z2 side in the axial direction of the rotation shaft 31.

[0028] The blades 33 suck in air. The blades 33 have a surface along the rotating shaft 31. A plurality of the blades 33 are arranged at equal intervals around the rotating shaft 31. The blades 33 are fixed to the rotating shaft 31 via the fixing parts 311. As the blades 33 rotate around the rotating shaft 31, air is sucked in from above Z1 of the blades 33 along the axial direction of the rotating shaft 31. The air sucked into the blades 33 is guided radially outward of the rotating shaft 31 along the fixing parts 311 by centrifugal force.

[0029] The casing 35 houses the blades 33. As shown in FIG. 5, the casing 35 has a blocking portion 351 and a storage portion 352. The blocking portion 351 is disposed radially outward of the rotary shaft 31 from the blades 33. The blocking portion 351 blocks the progress of the air introduced into the fan 30 and collides with the oil contained in the air. The storage portion 352 stores the oil adhering to the blocking portion 351. Therefore, the fan 30 disposed in the duct 2 can be given an oil separation function. In other words, the air and the oil can be separated without affecting the configuration of the equipment chamber 3 of the cooking device 100. As a result, the oil can be easily removed from the air introduced into the duct 2. The blocking portion 351 corresponds to an example of a "wall portion".

[0030] When the fan 30 starts operating, it draws in air, for example, from the upper Z1 side. The drawn-in air is guided radially outward of the rotating shaft 31 and collides with the blocking portion 351. Oil contained in the air adheres to the blocking portion 351 due to interfacial tension. The oil that adheres to the blocking portion 351 is collected in the storage portion 352 of the fan 30. In other words, the fan 30 can perform separation, collection, and storage by itself.

[0031] The fan 30 will be further described with reference to Figures 4 and 5. As shown in Figures 3 to 5, the fan 30 is disposed behind the intake section 211 at position X2. The intake section 211 has a filter 23 disposed therein.

[0032] The filter 23 filters the air. The filter 23 is, for example, a rectangular metal mesh extending in the left-right direction Y. The filter 23 is arranged so as to cover the intake section 211. Therefore, the duct 2 has the filter 23 in the intake section 211. As a result, the oil contained in the air that has passed through the filter 23 can be collected.

[0033] The casing 35 houses the blades 33. At least a portion of the casing 35 faces the blades 33. As shown in Figs. 4 and 5, the casing 35 has an upper wall 353 and a side wall 354. As shown in Fig. 5, the casing 35 includes a blocking portion 351. Since the casing 35 doubles as the blocking portion 351, the number of parts of the fan 30 can be reduced. As a result, oil separation can be achieved with a simple configuration.

[0034] The upper wall 353 has a suction portion 353a and a protruding portion 353b. The upper wall 353 has the suction portion 353a formed in the center portion. The suction portion 353a includes an opening that opens toward the upward direction Z1. As shown in FIG. 4, the suction portion 353a is substantially circular. As shown in FIG. 5, the inner portion of the upper wall 353 in the second direction D2 is located above the outer portion of the upper wall 353 in the second direction D2 in the Z1 direction. The suction portion 353a sucks in air and is located on the other side of the first direction D1 than the blade 33. The first direction D1 indicates the axial direction of the rotating shaft 31, and the second direction D2 indicates the radial direction of the rotating shaft 31. The upper direction Z1 corresponds to an example of "one side of the first direction D1". The downward direction Z2, which is the direction in which gravity acts, corresponds to an example of "the other side of the first direction D1".

[0035] The protruding portion 353b protrudes downward Z2 from the inner surface of the upper wall 353. For example, a plurality of protruding portions 353b may be provided. As shown in FIG. 4, the protruding portion 353b has a circular shape centered on the rotating shaft 31 in a plan view. Therefore, oil adhering to the inner surface of the casing 35 can be quickly collected. In other words, the collected oil can be quickly dripped. Note that, in this embodiment, two protruding portions 353b are provided, but this is not limiting. There may be a single protruding portion 353b, or there may be three or more protruding portions 353b.

[0036] As shown in FIG. 4 and FIG. 5, the side wall 354 is configured to be substantially cylindrical. The side wall 354 extends downward Z2 from the end of the upper wall 353 on the downward Z2 side. The side wall 354 has a blowing portion 354a. The blowing portion 354a is formed in the rear X2 side portion of the side wall 354. The blowing portion 354a includes an opening that opens toward the rear X2. The blowing portion 354a blows out air and is located on the second direction D2 side of the blades 33. The position of the suction portion 353a is different from the position of the blowing portion 354a. The blocking portion 351 is disposed between the suction portion 353a and the blowing portion 354a in the second direction D2. Therefore, the air sucked into the fan 30 can be reliably collided with the inner surface of the casing 35. As a result, the amount of oil recovered can be increased.

[0037] The area S1 of the opening of the suction portion 353a is larger than the area S2 of the opening of the blowing portion 354a. This makes it possible to lengthen the period during which the air remains inside the casing 35. As a result, the amount of oil recovered can be further increased.

[0038] The casing 35 has a storage portion 352 at a position on the other side in the first direction D1 from the blocking portion 351. The storage portion 352 is located in a lower Z2 side portion of the casing 35. The storage portion 352 forms an annular container. Therefore, the storage portion 352 can store oil dripping from the inner surface of the casing 35 inside the fan 30. Note that the storage portion 352 may be formed integrally with the blocking portion 351 as a part of the blocking portion 351.

[0039] As shown in FIG. 5, the fan 30 has a support portion 34 that supports the rotating shaft 31. The support portion 34 has a generally conical structure. Therefore, one side portion of the support portion 34 in the second direction D2 is located on the lower Z2 side of the other side portion of the support portion 34 in the second direction D2. In other words, oil adhering to the surface of the support portion 34 on the upper Z1 side can be guided downward Z2. As a result, the oil can be quickly collected in the storage portion 352. The storage portion 352 is disposed adjacent to one end portion of the support portion 34 in the second direction D2.

[0040] The microwave supplying unit 40 will be described with reference to Fig. 2 and Fig. 3. The microwave supplying unit 40 generates microwaves and supplies the microwaves to the heating chamber 1A. As shown in Fig. 2 and Fig. 3, the microwave supplying unit 40 has an antenna 41, a waveguide 42, and a magnetron 43.

[0041] The antenna 41 agitates the microwaves. The antenna 41 radiates uniform microwaves toward the heating chamber 1A. A tray 44 is disposed above the antenna 41. The antenna 41 is accommodated in the first accommodation section 10A.

[0042] The first storage unit 10A is disposed in the center of the bottom wall 104. The first storage unit 10A is configured as a bottomed cylindrical material with an open top. The opening on the upper Z1 side of the first storage unit 10A is closed by a tray 44. In consideration of microwave transparency, the tray 44 contains ceramics or glass.

[0043] The convection unit 50 will be described with reference to Fig. 3. The convection unit 50 circulates air inside the heating chamber 10. As shown in Fig. 3, the convection unit 50 has a circulation fan 51, a heater 52, and a cover 53.

[0044] The cover 53 forms a second housing section 10B between itself and the rear wall 105. The second housing section 10B houses the circulation fan 51 and the heater 52. The cover 53 is fixed to a surface of the rear wall 105 on the rear X2 side. A current-carrying section 521 and a first driving section 511 are disposed on the rear X2 side of the cover 53.

[0045] The circulation fan 51 is a centrifugal fan. The circulation fan 51 draws in air from the suction port 106 and blows out the air from the outlet 107. The circulation fan 51 circulates the heated air inside the heating chamber 1A. The first drive unit 511 drives the circulation fan 51. As shown in FIG. 3, the driven circulation fan 51 draws air inside the heating chamber 10 into the second storage unit 10B through the suction port 106. The driven circulation fan 51 blows out the air inside the second storage unit 10B into the heating chamber 10 through the outlet 107.

[0046] The heater 52 includes a heater 52a on the upper Z1 side and a heater 52b on the lower Z2 side. The heater 52a is disposed on the upper Z1 side of the second accommodation section 10B. The heater 52b is disposed on the lower Z2 side of the second accommodation section 10B. The power supply unit 321 energizes the heaters 52a and 52b. The energized heaters 52a and 52b heat the air in the second accommodation section 10B.

[0047] The embodiments of the present invention have been described above with reference to the drawings. However, the present invention is not limited to the above embodiments, and can be implemented in various forms without departing from the scope of the present invention. The drawings are mainly schematic illustrations of each component for ease of understanding, and the thickness, length, number, etc. of each component shown in the drawings are different from the actual ones due to the convenience of drawing. In addition, the materials, shapes, dimensions, etc. of each component shown in the above embodiments are merely examples, and are not particularly limited, and various modifications are possible within a scope that does not substantially deviate from the effects of the present invention.

[0048] (1) As described with reference to Figures 1 to 5, in this embodiment, the duct 2 is formed between the bottom wall 14 and the bottom wall 104, and the fan 30 is disposed between the bottom wall 14 and the bottom wall 104, but the present invention is not limited to this. The duct 2 may be formed between the bottom wall 14 and the bottom wall 104. In addition, the duct 2 may be formed between the left wall 12 and the left wall 102, or between the right wall 13 and the right wall 103.

[0049] (2) As described with reference to Figures 1 to 5, in this embodiment, the fan 30 is disposed in the vicinity of the intake section 211, but the present invention is not limited to this. The fan 30 may be disposed in the vicinity of the exhaust section 221. Note that it is preferable that the amount of oil-containing air entering the equipment chamber 3 is small.

[0050] (3) As described with reference to Figures 1 to 5, in this embodiment, the blowing portion 354a is configured to extend rearward X2 along the front-rear direction X, but the present invention is not limited to this. The blowing portion in the present invention does not have to be aligned along the front-rear direction X.

[0051] A modified example of cooling fan 30 will be described with reference to Fig. 6. Fig. 6 is a diagram showing a modified example of cooling fan 30. Below, differences from cooling fan 30 will be described, and the rest of the description of cooling fan 30 will be applied to cooling fan 30A.

[0052] 6, the cooling fan 30A has a blowing section 354A. The side wall 354 has the blowing section 354A. The side wall 354 has the blowing section 354A on the rear X2 side. The blowing section 354A includes an opening that opens toward the rear X2. The blowing section 354A blows out air, and is located on the second direction D2 side of the blades 33.

[0053] The blowing section 354A extends from the inside to the outside in the second direction D2. The outer part of the blowing section 354A in the second direction D2 is located closer to the first direction D1 than the inner part of the blowing section 354A in the second direction D2. The oil adhering to the inner surface of the casing 35 can be guided to the inside of the casing 35. In other words, the oil adhering to the inner surface of the casing 35 can be prevented from being released into the duct 2. As a result, the amount of oil recovered can be further increased.

[0054] (4) As described with reference to Fig. 1 to Fig. 5, in the present embodiment, the filter 23 is an example of a metal mesh, but the present invention is not limited thereto. The filter 23 in the present invention may be a nonwoven fabric filter.

[0055] (5) As described with reference to Fig. 1 to Fig. 5, in this embodiment, the cooking device 100 is a cooking device having a range heating mode, a grill heating mode, and an oven heating mode as cooking modes, but the present invention is not limited thereto. The cooking device 100 in the present invention may have at least one heating mode as long as it can heat an object to be heated. Also, it may have four or more heating modes.

[0056] (6) As described with reference to Figs. 1 to 5, in this embodiment, the intake section 211 is disposed in the front X1, and the suction section 353a is open to the upper Z1, but the present invention is not limited thereto. The suction section 353a may be open to the lower Z2. In this case, the intake section 211 is also disposed in the lower Z2. The storage section 352 is disposed in the lower Z2 side portion of the casing 35.

[0057] (7) As described with reference to Figs. 1 to 6, in this embodiment, a side-opening door in which the door 18 is supported so as to be rotatable about a vertical axis is disclosed, but the present invention is not limited thereto. The door 18 may be a vertical-opening door in which the door 18 is supported so as to be rotatable about a horizontal axis. Also, the door may be a drawer type door. [Industrial Applicability]

[0058] The present invention is useful, for example, in the field of cooking appliances. [Explanation of symbols]

[0059] 2: Duct 21: First Duct 22: Second duct 23: Filter 30: Fan 30A: Cooling fan 31: Rotation axis 33: Feather 100: Cooker 351: Blocking part 352: Storage section 353a: Intake section 353b:Protrusion 354a:Blowout part 354A:Blowout part

Claims

1. A duct communicating with the outside via the intake portion; a fan disposed within the duct for drawing in air; Equipped with The fan is A rotation axis; A blade fixed to the rotating shaft; a wall portion disposed radially outward of the rotor shaft relative to the blades; a storage section for storing oil adhering to the wall section; A heating cooker having the above structure.

2. The fan further includes a casing that houses the blades and faces the blades, The cooking device according to claim 1 , wherein the casing includes the wall portion.

3. The casing comprises: a suction portion that sucks in the air and is located on one side of the blade in the first direction; a blowing portion that blows out the air and is located on one side of the blade in the second direction; having The wall portion is disposed between the suction portion and the blowing portion, the first direction indicates an axial direction of the rotation shaft, The cooking device according to claim 2 , wherein the second direction indicates a radial direction of the rotation shaft.

4. The cooking device according to claim 3 , wherein an area of ​​the opening of the suction portion is larger than an area of ​​the opening of the blowing portion.

5. The blowing portion extends from the other side to the one side in the second direction, a portion of the blowing portion on one side in the second direction is located on one side in the first direction relative to a portion of the blowing portion on the other side in the second direction, The cooking device according to claim 3 , wherein the one side of the first direction indicates a direction opposite to a direction in which gravity acts.

6. The casing further has a protruding portion protruding from an inner surface to the other side in the first direction, The cooking device according to claim 3 , wherein the other side of the first direction indicates a direction in which gravity acts.

7. The fan has a support portion that supports the rotating shaft, a portion of the support portion on one side in the second direction is located on the other side in the first direction relative to a portion of the support portion on the other side in the second direction, The cooking device according to claim 3 , wherein the other side of the first direction indicates a direction in which gravity acts.

8. the casing has the storage portion at a position on the other side of the wall portion in the first direction, The cooking device according to claim 7 , wherein the other side of the first direction indicates a direction in which gravity acts.

9. The cooking device according to claim 1 , wherein the duct has a filter at the intake section for filtering the air.

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