Heating cooker

Abstract

To provide a heating cooker capable of suppressing dew condensation occurring on the heating cooker itself or on a furniture wall surface around the heating cooker, even when stored in recent miniaturized furniture.SOLUTION: A heating cooker 1 includes: a steam passage 40 where steam used in heating cooking passes; an air passage 41 where air whose humidity is lower than the steam passes; a dilution passage 42; a first straightening plate 21; and a louver 22. The dilution passage 42 is formed being communicated with an outlet side of the steam passage 40 and an outlet side of the air passage 41. The first straightening plate 21 is arranged on an inlet side of the dilution passage. The louver 22 is formed on an outlet side of the dilution passage 42 having a space from the first straightening plate 21.SELECTED DRAWING: Figure 3

Description

[Technical field]

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

[0002] One type of cooking device that cooks food uses steam as a heat source. Food cooked in this type of cooking device has the advantage of having a unique flavor that is different from food cooked in a microwave oven or the like.

[0003] On the other hand, steam used for cooking needs to be discharged outside the cooker. In addition, the cooker may be stored in furniture such as a shelf when used. In this case, steam discharged outside the cooker may cause condensation on the cooker itself or on the furniture wall around the cooker. Furniture or cookers on which condensation has occurred are undesirable because they are more likely to deteriorate than usual.

[0004] In order to solve such problems, a cooking device that dilutes steam and discharges it to the outside is disclosed in Patent Document 1. The cooking device disclosed in Patent Document 1 can prevent condensation from occurring on the furniture walls around the cooking device stored in the furniture and on the cooking device itself. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] International Publication No. 2020 / 027054 Summary of the Invention [Problem to be solved by the invention]

[0006] However, in recent years, furniture that houses cooking appliances has tended to become smaller, and it may become difficult to ensure the same distance between the steam exhaust port of the cooking appliance and the furniture wall surface as before. Therefore, when a cooking appliance is stored in furniture that has been becoming smaller in recent years, it is becoming difficult to prevent condensation from occurring on the cooking appliance itself or on the furniture wall surface around the cooking appliance with the configuration of the cooking appliance described in Patent Document 1.

[0007] The present invention is devised to solve the above-mentioned problems, and aims to provide a cooking appliance that can prevent condensation from occurring on the cooking appliance itself or on the furniture walls surrounding the cooking appliance, even when the cooking appliance is stored in the compact furniture that has become popular in recent years. [Means for solving the problem]

[0008] In order to solve the above problems, the cooking device of the present invention includes a steam passage, an air passage, a dilution passage, a first flow straightening plate, and a louver. Steam used for cooking passes through the steam passage. Air having a lower humidity than the steam passes through the air passage. The dilution passage communicates with the steam passage and the air passage at the outlet side of the steam passage and the outlet side of the air passage. The first flow straightening plate is disposed at the inlet side of the dilution passage. The louver is disposed at the outlet side of the dilution passage separated from the first flow straightening plate by a space. Effect of the Invention

[0009] According to the cooking device of the present invention, even when the cooking device is stored in recent years' downsized furniture, it is possible to prevent condensation from occurring on the cooking device itself or on the furniture wall surface around the cooking device. [Brief description of the drawings]

[0010] [Figure 1] FIG. 2 is a perspective view including a front surface of the cooking device according to the embodiment of the present invention. [Diagram 2] FIG. 2 is a perspective view including a rear surface of the cooking device according to the embodiment of the present invention. [Diagram 3] 3 is an enlarged view showing the flow of air and steam by enlarging the vicinity of an exhaust duct at cross section AA in the cooking device shown in FIG. 2. FIG. [Figure 4] FIG. 2 is a front view of an exhaust cover in the cooking device according to the embodiment of the present invention. [Diagram 5] 5 is a cross-sectional view of the exhaust cover shown in FIG. 4 taken along line BB. [Figure 6] FIG. 4 is a left side view showing the exhaust of steam and air in the cooking device according to the embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] An embodiment of the present invention will be described with reference to Figs. 1 to 6. Fig. 1 is a perspective view including a front surface of a cooking device according to an embodiment of the present invention. Fig. 2 is a perspective view including a rear surface of a cooking device according to an embodiment of the present invention. Fig. 3 is an enlarged view of the vicinity of an exhaust duct at cross section AA in the cooking device shown in Fig. 2, showing the flow of steam and air. Fig. 4 is a front view of an exhaust cover in the cooking device according to an embodiment of the present invention. Fig. 5 is a cross section taken along line BB of the exhaust cover shown in Fig. 4. Fig. 6 is a left side view showing the exhaust of air and steam in the cooking device according to an embodiment of the present invention. In the drawings, the same or corresponding parts are designated by the same reference symbols, and description will not be repeated.

[0012] With reference to FIG. 1, an embodiment of a cooking device 1 according to the present invention will be described.

[0013] 1, the cooking device 1 has a housing 2 and a door 3. The door 3 is provided with a handle 4.

[0014] For ease of explanation, in this embodiment, the directions shown in Fig. 1 are defined as the front-rear, left-right, top-bottom directions. That is, the direction in which the top surface 2A of the housing 2 is located is defined as the up direction, and the opposite direction is defined as the down direction. The direction in which the door 3 of the housing 2 is located is defined as the front direction, and the opposite direction is defined as the rear direction. The direction perpendicular to the up-down direction and the front-rear direction is defined as the left-right direction.

[0015] Cooking device 1 is used for cooking food. Housing 2 has a heating chamber (not shown) in which food is stored and heated. The heating chamber is formed inside housing 2. Door 3 is provided on housing 2 so as to cover the front of housing 2. Door 3 opens by pulling handle 4. Opening door 3 opens the heating chamber. Food is stored in the heating chamber through the opening to the heating chamber.

[0016] After placing food in the heating chamber, the door 3 is closed by pressing the handle 4. When the door 3 is closed, the heating chamber is sealed. Steam is supplied into the sealed heating chamber. The steam supplied into the heating chamber heats the food. In this embodiment, superheated steam, which is a form of water vapor, is used as the steam that heats the food.

[0017] Next, the configuration of the cooking device 1 will be further described with reference to Figs.

[0018] As shown in Fig. 2, a rear plate 10 and an exhaust cover 20 are attached to the housing 2 in this order behind the housing 2 of the cooking device 1. As shown in Fig. 3, an air passage 41 is formed between the rear plate 10 and the exhaust cover 20. Air 51 passes through the air passage 41 to dilute the post-heating steam 50 (steam) generated after heating food. The air 51 passes through the air passage 41 from below to above. Here, for ease of explanation, the upper side of the air passage 41 is referred to as the outlet side of the air passage 41.

[0019] The back plate 10 is a plate-like member. A steam duct insertion port 11 is formed in the back plate 10. The steam duct insertion port 11 is formed in the back plate 10 so as to penetrate the back plate 10. A steam duct 30 is inserted into the steam duct insertion port 11. A steam passage 40 is formed inside the steam duct 30. Steam (heated steam 50) used for cooking passes through the steam passage 40. That is, the heated steam 50 passes through the inside of the steam passage 40. Here, air 51 passing through the air passage 41 has a lower humidity than the heated steam 50. A steam exhaust port 31 is formed in the steam duct 30, through which the heated steam 50 is exhausted. The steam exhaust port 31 is located inside the air passage 41. The steam exhaust port 31 is arranged so as to open upward. Exhaust steam 501 is exhausted from the steam exhaust port 31 into the inside of the air passage 41. The exhaust steam 501 and the air 51 pass through the air passage 41 and enter the inside of the dilution passage 42. The air 51 that has entered the inside of the dilution passage 42 is referred to as dilution air 510.

[0020] As shown in Figs. 2 and 4, the exhaust cover 20 has an outer plate portion 20A, left and right side plate portions 20B, and left and right flange portions 20C. The outer plate portion 20A is a plate-shaped portion. The left and right side plate portions 20B are formed extending forward from the left and right side end portions of the outer plate portion 20A. The left and right flange portions 20C are formed at the front end portions of the left and right side plate portions 20B so as to be separated in the left and right direction. The left and right flange portions 20C are portions for connecting the exhaust cover 20 and the housing 2. The exhaust cover 20 is attached to the rear of the housing 2 by attaching the front surface of the flange portion 20C to the rear surface of the housing 2 via the rear plate 10.

[0021] As shown in FIG. 3 and FIG. 5, an exhaust duct 24 is formed at the upper end of the outer plate portion 20A. An exhaust duct inlet side opening 25 is formed in the exhaust duct 24. The exhaust duct inlet side opening 25 is connected to a dilution passage 42 formed inside the exhaust duct 24. The exhaust steam 501 and the air 51 enter the exhaust duct inlet side opening 25. The exhaust duct 24 is formed with an exhaust port 26 that is an opening for discharging the exhaust steam 501 and the diluted air 510 to the outside. Since the exhaust duct inlet side opening 25 and the exhaust port 26 are formed in the dilution passage 42 in this way, for convenience of explanation, hereinafter, the exhaust duct inlet side opening 25 side of the dilution passage 42 will be referred to as the inlet side, and the exhaust port 26 side of the dilution passage 42 will be referred to as the outlet side. The dilution passage 42 is connected to the air passage 41. The opening of the dilution passage 42 that is connected to the air passage 41 is the exhaust duct inlet side opening 25. The exhaust port 26 is formed to open forward and upward, at an angle to the housing 2.

[0022] A first straightening plate 21 is formed on the inlet side of the dilution passage 42. The first straightening plate 21 is an arc-shaped plate material that protrudes upward in a cross-sectional view. The first straightening plate 21 is formed along the dilution passage 42. The first straightening plate 21 divides the dilution passage 42 into a primary dilution passage 42A and a non-dilution passage 42B. The primary dilution passage 42A is formed on the lower side of the first straightening plate 21. The primary dilution passage 42A also communicates with the inlet side of the dilution passage 42 and the outlet side of the dilution passage 42. In the primary dilution passage 42A, a portion that communicates with the inlet side of the dilution passage 42 is referred to as an inlet portion 42AI. In the primary dilution passage 42A, a portion that communicates with the outlet side of the dilution passage 42 is referred to as an outlet portion 42AO. On the other hand, the non-dilution passage 42B is formed on the upper side of the first straightening plate 21. The non-dilution passage 42B also communicates between the inlet side of the dilution passage 42 and the outlet side of the dilution passage 42. In the non-dilution passage 42B, a portion that communicates with the inlet side of the dilution passage 42 is referred to as an inlet section 42BI. In the non-dilution passage 42B, a portion that communicates with the outlet side of the dilution passage 42 is referred to as an outlet section 42BO. The inlet section 42AI of the primary dilution passage 42A is formed so as to face each other in the up-down direction with respect to the opening of the steam exhaust port 31 when the exhaust cover 20 is attached to the housing 2.

[0023] In the non-dilution passage 42B, non-diluted air 512, which is a part of the diluted air 510 that has entered the inside of the dilution passage 42, enters from an inlet portion 42BI of the non-dilution passage 42B and exits from an outlet portion 42BO of the non-dilution passage 42B. The non-dilution passage 42B is formed so that the cross-sectional area perpendicular to the direction in which the non-diluted air 512 passes through the inlet portion 42BI is larger than the cross-sectional area perpendicular to the direction in which the non-diluted air 512 passes through the outlet portion 42BO of the non-dilution passage 42B.

[0024] A louver 22 is formed on the outlet side of the dilution passage 42, separated from the first straightening plate 21 by a space. The louver 22 is a plate-shaped member. The louver 22 is formed along the dilution passage 42. The louver 22 also divides the outlet side of the dilution passage 42 into a primary dilution discharge passage 42C and a secondary dilution passage 42D. The primary dilution discharge passage 42C communicates with the inlet side of the dilution passage 42 and the outlet side of the dilution passage 42. In the primary dilution discharge passage 42C, a portion communicating with the inlet side of the dilution passage 42 is referred to as an inlet portion 42CI. In the primary dilution discharge passage 42C, a portion communicating with the outlet side of the dilution passage 42 is referred to as an outlet portion 42CO. The inlet portion 42CI in the primary dilution discharge passage 42C and the outlet portion AO in the primary dilution passage 42A are formed opposite to each other in the longitudinal direction of the dilution passage 42. As described above, the primary dilution passage 42A is formed below the first straightening plate 21. Therefore, the primary dilution discharge passage 42C is formed below the louver 22. The secondary dilution passage 42D communicates the inlet side of the dilution passage 42 with the outlet side of the dilution passage 42. In the secondary dilution passage 42D, a portion communicating with the inlet side of the dilution passage 42 is referred to as an inlet portion 42DI. In the secondary dilution passage 42D, a portion communicating with the outlet side of the dilution passage 42 is referred to as an outlet portion 42DO. The inlet portion 42DI in the secondary dilution passage 42D and the outlet portion 42BO in the non-dilution passage 42B are formed opposite to each other in the longitudinal direction of the dilution passage 42. As described above, the non-dilution passage 42B is formed above the first straightening plate 21. Therefore, the secondary dilution passage 42D is formed above the louver 22.

[0025] In the dilution passage 42, a plurality of second straightening plates 23 are formed to divide the dilution passage 42 in the longitudinal direction. The configuration of the second straightening plate 23 will be described with reference to Figs. 4 and 5. As shown in Fig. 4, the second straightening plate 23 is formed such that both sides extend in the left-right direction to divide the dilution passage 42. As shown in Fig. 5, the second straightening plate 23 is formed from the inlet side of the dilution passage 42 in the first straightening plate 21 to the outlet side of the dilution passage in the louver 22.

[0026] Next, with reference to FIG. 3, a process in which the exhaust steam 501 and the dilution air 510 pass through the inside of the dilution passage 42 will be described.

[0027] As shown in Fig. 3, exhaust steam 501 enters the inside of the dilution passage 42 from the exhaust duct inlet side opening 25. As described above, the inlet portion 42AI of the primary dilution passage 42A of the dilution passage 42 and the opening of the steam exhaust port 31 are formed to face each other in the vertical direction. Therefore, after entering the inside of the dilution passage 42, the exhaust steam 501 heads toward the primary dilution passage 42A. This makes it difficult for the exhaust steam 501 to enter the non-dilution passage 42B. This makes it possible to suppress the exhaust steam 501 from being diluted by the non-dilution air 512.

[0028] Meanwhile, the dilution air 510 is branched into two directions by the first straightening plate 21 at the inlet side end of the dilution passage 42 at the first straightening plate 21. One of the branches from the dilution air 510 is primary dilution air 511. As described above, the primary dilution air 511 flows toward the primary dilution passage 42A. The other, non-dilution air 512, flows toward the non-dilution passage 42B. Here, since the dilution passage 42 has the first straightening plate 21, the exhaust steam 501 primarily diluted by the dilution air 510 is prevented from being discharged to the outside of the cooking appliance 1.

[0029] The primary dilution air 511 enters the primary dilution passage 42A from the inlet 42AI of the primary dilution passage 42A. The primary dilution air 511 primarily dilutes the exhaust steam 501 flowing toward the primary dilution passage 42A inside the primary dilution passage 42A. The exhaust steam 501 thus primarily diluted by the primary dilution air 511 is referred to as primary dilution steam 52. The primary dilution passage 42A allows the primary dilution steam 52 to pass through.

[0030] The non-diluted air 512 enters the non-diluted passage 42B from the inlet portion 42BI of the non-diluted passage 42B. The non-diluted passage 42B passes the non-diluted air 512. Specifically, in this embodiment, the non-diluted passage 42B passes the non-diluted air 512, which is a part of the diluted air 510, as it is. However, the non-diluted air 512 passing through the non-diluted passage 42B may be slightly mixed with the exhaust steam 501. Here, as described above, the cross-sectional area of ​​the inlet portion 42BI of the non-diluted passage 42B is larger than the cross-sectional area of ​​the outlet portion 42BO of the non-diluted passage 42B. Therefore, the non-diluted passage 42B increases the speed of the non-diluted air 512. Hereinafter, the non-diluted air 512 whose speed has been increased is referred to as the passing air 513.

[0031] Next, the primary dilution steam 52 that has passed through the primary dilution passage 42A branches into two directions by the louver 22 at the inlet end of the dilution passage 42. One of the branched exhaust primary dilution steam 521 flows toward the primary dilution exhaust passage 42C. The other branched primary dilution steam 522 flows toward the secondary dilution passage 42D.

[0032] The primary dilution discharge passage 42C passes the discharge primary dilution steam 521. Specifically, in this embodiment, the primary dilution discharge passage 42C passes the discharge primary dilution steam 521, which is a part of the primary dilution steam 52, as it is. The discharge primary dilution steam 521 may be mixed with the secondary dilution air 514. The discharge primary dilution steam 521 is discharged to the outside of the cooking appliance 1 from the exhaust port 26 formed on the outlet side of the dilution passage 42.

[0033] On the other hand, the passing air 513 flows toward the secondary dilution passage 42D. As described above, the passing air 513 is the non-diluted air 512 with an increased speed. The fast passing air 513 does not easily flow toward the primary dilution exhaust passage 42C. For this reason, most of the passing air 513 becomes exhaust air 515 that passes along the secondary dilution passage 42D.

[0034] A part of the passing air 513 becomes the secondary dilution air 514 which flows toward the louver 22 side of the secondary dilution passage 42D. The branched primary dilution steam 522 is diluted by the secondary dilution air 514. The branched primary dilution steam 522 which is secondarily diluted by the secondary dilution air 514 in this manner is referred to as the secondary dilution steam 53. The secondary dilution steam 53 passes through the louver 22 side of the secondary dilution passage 42D. That is, the secondary dilution steam 53 passes between the exhaust air 515 and the louver 22. The secondary dilution passage 42D allows the secondary dilution steam 53 and the exhaust air 515 to pass through. The secondary dilution steam 53 and the exhaust air 515 are exhausted to the outside of the cooking device 1 from the exhaust port 26 formed on the outlet side of the secondary dilution passage 42D.

[0035] As described above, the dilution passage 42 is formed with the second straightening plate 23 that divides the dilution passage 42. This prevents the discharged primary dilution steam 521, the secondary dilution steam 53, and the discharged air 515 from being discharged in the left-right direction to the outside of the cooking appliance 1. This prevents condensation from forming on the walls or on the walls of furniture or the like disposed to the left and right of the cooking appliance 1.

[0036] Also, a component for blocking the inlet of a specific non-dilution passage 42B can be attached to the adjacent second straightening plate 23. This can restrict the non-dilution air 512 from entering the specific non-dilution passage 42B. Therefore, the non-dilution air 512 that cannot enter the blocked non-dilution passage 42B heads toward the other non-dilution passages 42B and the primary dilution passage 42A, and a part of the non-dilution air 512 enters each of them. As a result, in addition to the non-dilution air 512, a part of the non-dilution air 512 that was supposed to enter the blocked non-dilution passage 42B enters the unblocked non-dilution passage 42B. Therefore, the amount of exhaust air 515 passing through the secondary dilution passage 42D on the outlet side of the unblocked non-dilution passage 42B increases compared to when the non-dilution passage 42B is not blocked. Similarly, a part of the non-dilution air 512 that was supposed to enter the blocked non-dilution passage 42B also enters the primary dilution passage 42A. Therefore, in addition to the primary dilution air 511, a part of the non-dilution air 512 that was supposed to enter the closed non-dilution passage 42B enters the primary dilution passage 42A. Therefore, the exhaust steam 501 is more diluted in the primary dilution passage 42A than when a specific non-dilution passage 42B is not closed. Here, for example, when the amount of exhaust steam 501 discharged from the steam exhaust port 31 differs in the left and right directions, condensation may occur on furniture around the cooking appliance 1 depending on the degree of dilution of the exhaust primary dilution steam 521 and the secondary dilution steam 53 discharged to the outside of the cooking appliance 1 in the left and right directions. However, by blocking a part of the non-dilution passage 42B as described above, it is possible to adjust the exhaust amount in the left and right directions of the exhaust air 515 discharged to the outside of the cooking appliance 1 and the dilution degree of the exhaust primary dilution steam 521 and the secondary dilution steam 53. This makes it possible to further suppress the occurrence of condensation on furniture around the cooking appliance 1.

[0037] Next, with reference to Figs. 3 and 6, exhaust air 515, exhaust primary dilution steam 521, and secondary dilution steam 53 exhausted to the outside of cooking appliance 1 will be described.

[0038] As described above, the exhaust duct 24 is formed at the upper end of the outer plate portion 20A of the exhaust cover 20. Therefore, when the exhaust cover 20 is attached to the housing 2, as shown in FIG. 3, the exhaust duct 24 is provided at the rear and upper edge portion 2B of the housing 2. Also, the exhaust duct 24 opens from the rear of the top surface 2A of the housing 2 toward the front, in a direction away from the top surface 2A. Due to this configuration, the discharged primary dilution steam 521, the secondary dilution steam 53, and the discharged air 515 are discharged from the exhaust port 26 toward the front, in a direction away from the top surface 2A. Therefore, the discharged primary dilution steam 521, the secondary dilution steam 53, and the discharged air 515 are less likely to come into contact with the top surface 2A. Therefore, condensation is less likely to occur on the top surface 2A.

[0039] As described above, the primary dilution discharge passage 42C is formed between the secondary dilution passage 42D and the housing 2. Due to this configuration, the discharge primary dilution steam 521 passes between the secondary dilution steam 53 discharged to the outside of the cooking device 1 and the housing 2. Therefore, as shown in Fig. 6, the discharge primary dilution steam 521, the secondary dilution steam 53, and the discharge air 515 are discharged from the housing 2 side to the outside of the cooking device 1 from the exhaust port 26 in this order.

[0040] Therefore, exhaust air 515 passes between exhaust primary dilution steam 521 and secondary dilution steam 53 exhausted from exhaust port 26 and the furniture wall surface around cooking device 1. Therefore, it is possible to prevent exhaust primary dilution steam 521 and secondary dilution steam 53 from contacting the furniture wall surface around cooking device 1. Furthermore, secondary dilution steam 53 is adjacent to exhaust air 515. As a result, condensation is less likely to occur on the furniture wall surface around cooking device 1. Furthermore, primary dilution steam 52 passing through housing 2 side is diluted by air 51 to the same extent or more than in the conventional case. Therefore, condensation is less likely to occur on top surface 2A of cooking device 1.

[0041] 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 spirit of the present invention. The drawings are mainly schematic illustrations of each component for ease of understanding, and the thickness, length, number, spacing, etc. of each component shown in the drawings are different from the actual ones due to the convenience of drawing. In addition, the material, shape, 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 range that does not substantially deviate from the configuration of the present invention.

[0042] The gist of the present invention is that the dilution passage 42 is provided on the outlet side of the steam passage 40 and the air passage 41, and the louver 22 is disposed with a space on the outlet side of the first flow straightening plate 21 in the dilution passage 42. Therefore, the components that constitute the steam passage 40, the air passage 41, and the dilution passage 42 may be in any form. [Industrial Applicability]

[0043] INDUSTRIAL APPLICABILITY The present invention provides a cooking device and has industrial applicability. [Explanation of symbols]

[0044] 1 Cooker 2. Chassis 2A Top 3 Doors 10 Back plate 20 Exhaust cover 21 1st rectifier plate 22 Louver 23 2nd rectifier plate 26 Exhaust port 31 Steam exhaust port 40 Steam Passage 41 Air passage 42 Dilution passage 42A Primary dilution passage 42B Non-dilution passage 42C Primary dilution exhaust passage 42D Secondary dilution passage 50 Steam 51 Air 52 Primary dilution steam 53 Secondary dilution steam

Claims

1. A steam passage through which steam used for cooking passes; an air passage through which air having a lower humidity than the steam passes; a dilution passage communicating with an outlet side of the steam passage and an outlet side of the air passage; A first flow straightening plate disposed on the inlet side of the dilution passage; a louver disposed on an outlet side of the dilution passage with a space therebetween from the first flow straightening plate; an exhaust port that exhausts the steam diluted with the air in the dilution passage and the air branched by the first flow straightening plate to the outside; A heating cooker comprising:

2. The first current plate is a primary dilution passage through which the steam from the steam passage is primarily diluted with the air from the air passage and passes; a non-diluting passageway for passing the air from the air passageway; The dilution passage is divided into The louver is a primary dilution exhaust passage for passing the steam primarily diluted in the primary dilution passage; a secondary dilution passage for secondarily diluting the steam primarily diluted in the primary dilution passage with the air from the non-dilution passage and for passing the secondarily diluted steam and the air from the non-dilution passage; The cooking device according to claim 1 , wherein the outlet side of the first flow straightening plate in the dilution passage is partitioned into a first flow straightening plate and a second flow straightening plate.

3. The cooking device according to claim 2 , wherein the inlets of the primary dilution passages face each other in a direction in which a steam exhaust port for discharging the steam from the steam passage is open.

4. 4. The cooking device according to claim 2, wherein a cross-sectional area of ​​the non-dilution passage perpendicular to a direction in which the air passes through an inlet portion of the non-dilution passage is larger than a cross-sectional area of ​​the non-dilution passage perpendicular to a direction in which the air passes through an outlet portion of the non-dilution passage.

5. The dilution passage further includes a second straightening plate that divides the steam from the steam passage and the air from the air passage. The cooking device according to claim 2 , wherein the second straightening plate extends from the first straightening plate and the louver.

6. A housing is provided for guiding steam used for cooking to the steam passage, The cooking device according to any one of claims 2 to 5, wherein the dilution passage is formed in an edge portion of the housing and opens in a direction away from the outer plate from one end to the other end of an outer plate having the edge portion of the housing.

7. The cooking device according to claim 6 , wherein the primary dilution discharge passage is formed between the secondary dilution passage and the housing.

Images