Steam generator

Abstract

Even if water accumulates in the guide discharge section that sends the steam generated in the steam generating container to the destination, the steam will not be sent to the destination if condensation occurs inside the section. [Solution] The steam generator 30 comprises a steam generating container 31 having a nozzle 31a for ejecting steam generated from water stored inside, a heating means 36 for heating the water inside the steam generating container 31, and a guided discharge unit 40 for guiding the steam generated inside the steam generating container 31 from the nozzle 31a to an adjacent discharge destination in the horizontal direction. The steam discharge port 44a for discharging the steam guided by the guided discharge unit 40 to the discharge destination 20 is provided with a shielding unit 46b that covers at least the lower part in a manner that allows steam to pass through, preventing water inside the guided discharge unit 40 from flowing out of the discharge port 44a.

Description

Technical Field

[0001] The present invention relates to a steam generation device used in a cooking appliance such as a steam convection oven.

Background Art

[0002] Patent Document 1 discloses an invention of a steam generation device that generates steam. The steam generation device is used in a cooking appliance such as a steam convection oven and is used to supply steam into the cooking chamber of the cooking appliance. The steam generation device includes a steam generation container having a steam outlet at its upper end for ejecting steam generated from the water stored inside, heating means for heating the water inside the steam generation container, and a steam delivery section for delivering the steam generated inside the steam generation container from the steam outlet horizontally to an adjacent cooking chamber. In the steam generation device of Patent Document 1, a plurality of shielding plates are provided vertically spaced apart in the steam passage section above the steam generation container, and steam holes through which steam can pass are formed in the shielding plates. When heating water in the steam generation container to generate steam, hot water splashes from the water surface of the steam generation container, but the hot water splashing from the water surface of the steam generation container is blocked from rising by the shielding plates, and it is difficult for the splashed hot water to flow into the cooking chamber from the steam delivery section.

[0003] Also, in the steam generation device shown in FIGS. 7 and 8 of Patent Document 1, the steam delivery section includes an inclined section that rises obliquely toward the cooking chamber side, and a plurality of shielding plates are provided on the inclined section of the steam delivery section. The hot water that splashes from the steam generation container and rises along the inclined section of the steam delivery section together with the steam is blocked from rising by the shielding plates, and it is difficult for the hot water rising together with the steam to flow into the cooking chamber from the steam delivery section.

[0004] Patent Document 2 describes a steam generator comprising a steam generating container having an outlet at its upper end for discharging steam generated from water stored inside, a heating means for heating the water inside the steam generating container, and a steam discharge unit for guiding the steam generated inside the steam generating container to a cooking chamber adjacent to the outlet in a horizontal direction. The steam generator of Patent Document 2 is equipped with a hot water inflow prevention member to prevent boiling water from the top of the steam generating container from flowing into the cooking chamber. The hot water inflow prevention member is attached to the steam outlet at the upper end of the steam generating container and has a shielding portion that bulges upward to block the cooking chamber side of the outlet, and a steam passage that allows steam to pass through on the opposite side of the outlet from the cooking chamber side. When water is heated inside the steam generating container to generate steam, boiling water splashes up from the water surface inside the steam generating container, but the splashing water is prevented from rising by the shielding portion of the hot water inflow prevention member, making it difficult for the boiling water to flow into the cooking chamber from the steam discharge unit. [Prior art documents] [Patent Documents]

[0005] [Patent Document 1] Japanese Patent Publication No. 2010-121803 [Patent Document 2] Japanese Patent Publication No. 2023-034024 [Overview of the Initiative] [Problems that the invention aims to solve]

[0006] In the steam generator of Patent Document 1, the hot water splashing up from the water surface of the steam generating container is less likely to be sent into the cooking chamber, which is the destination of the steam, by a shielding plate provided on the upper part of the steam generating container or on the inclined part of the steam delivery section (guide delivery section). Similarly, in the steam generator of Patent Document 2, the hot water splashing up from the water surface of the steam generating container is less likely to be sent into the cooking chamber, which is the destination of the steam, by a shielding part of a hot water inflow prevention member provided on the upper part of the steam generating container. Thus, the steam generators of Patent Documents 1 and 2 make it difficult for the hot water splashing up from the steam generating container to be sent to the steam delivery section. However, it is not only difficult to completely prevent the hot water splashing up from the steam generating container from being sent to the steam delivery section, but condensation is also likely to occur in the steam delivery section as steam passes through it, and there is a risk that the hot water that has flowed into the steam delivery section or the water from condensation will be sent into the cooking chamber, which is the destination of the steam, by the steam that is forcefully ejected from the nozzle of the steam generating container. The present invention aims to prevent hot water or cold water from being discharged to the destination from being discharged to the destination from the guided discharge section that discharges steam generated in the steam generating container. [Means for solving the problem]

[0007] To solve the above problems, the present invention provides a steam generator comprising a steam generating container having a nozzle for ejecting steam generated from water stored inside, a heating means for heating the water inside the steam generating container, and a guided discharge unit for guiding the steam generated inside the steam generating container from the nozzle to an adjacent discharge destination in the horizontal direction, wherein the steam discharge port for discharging the steam guided by the guided discharge unit to the discharge destination is provided with a shielding unit that covers at least the lower part in a manner that allows steam to pass through, thereby preventing water inside the guided discharge unit from flowing out of the discharge port.

[0008] In the steam generator configured as described above, the steam outlet that sends steam guided by the guided discharge section to the destination is provided with a shielding section that covers at least the lower part while allowing steam to pass through, thereby preventing water from flowing out of the outlet. Steam rising from the steam generating vessel is sent out horizontally to adjacent destinations through the guided discharge section from the nozzle at the upper end. Not only is there a risk that hot water may flow into the guided discharge section along with the steam rising from the steam generating vessel, but condensation may also occur in the guided discharge section as steam passes through, and there is a risk that the hot water or water from the condensation that has flowed into the guided discharge section may flow out of the outlet to the destination. However, since the outlet of the guided discharge section is provided with a shielding section that covers at least the lower part while allowing steam to pass through, thereby preventing water from flowing out of the outlet, hot water or water from the guided discharge section will not flow out of the outlet.

[0009] In the steam generator configured as described above, it is preferable to detachably fit a spill-prevention cylinder, which has a shielding portion that covers at least the lower part while allowing steam to pass through from the outlet, to at least the outlet-side end of the guided discharge section. When this is done, a shielding portion can be provided at the outlet of the guided discharge section by fitting the spill-prevention cylinder to the outlet-side end of the guided discharge section. Furthermore, even if the outlet of the guided discharge section does not have a shielding portion, a shielding portion can be provided at the outlet of the guided discharge section by fitting the spill-prevention cylinder to the outlet-side end of the guided discharge section, thereby preventing hot water or water from flowing out to the destination. [Brief explanation of the drawing]

[0010] [Figure 1] This is a front view of one embodiment of the heating appliance of the present invention. [Figure 2] This is a longitudinal cross-sectional view taken along the left-right direction at the center in the front-to-back direction. [Figure 3] This is a cross-sectional view of AA. [Figure 4] Figure 3 shows a cross-sectional view AA with the partition plate and support frame removed. [Figure 5]This is a left side view showing the machine room with the left panel of the housing removed. [Figure 6] This is a partial longitudinal cross-sectional view taken along the left-right direction at the location where the steam generator is installed. [Figure 7] This is an enlarged cross-sectional view of the area enclosed by the dashed line in Figure 6. [Figure 8] This is a perspective view of the disassembled mounting bracket from the kitchen cabinet side. [Figure 9] This is a block diagram of the control device. [Best Mode for Carrying Out the Invention]

[0011] Below, an embodiment of the steam generator of the present invention used in a cooking appliance will be described with reference to the attached drawings. A cooking appliance equipped with the steam generator of the present invention is called a steam convection oven, and it cooks food by circulating hot air or hot air containing steam inside the cooking chamber. As shown in Figures 1 and 2, the cooking appliance 10 is equipped with a machine room 12 on the left side of the housing 11 and a cooking chamber 20 for cooking food in the part of the housing 11 excluding the machine room 12. As shown in Figure 3, an opening 20a for putting food in and taking it out is provided on the front of the cooking chamber 20, and a door 13 for opening and closing the opening 20a is provided.

[0012] As shown in Figure 2, the cooking chamber 20 is for storing and heating food ingredients. The portion of the cooking chamber 20 excluding the left side is designated as a food storage chamber 21 for storing ingredients, while the left side of the cooking chamber 20 is designated as a hot air generation chamber 22 for generating hot air to be sent to the food storage chamber 21. As shown in Figures 2 and 3, a partition plate 23 is provided to the left of the center of the cooking chamber 20 in the left-right direction. The partition plate 23 divides the inside of the cooking chamber 20 into the food storage chamber 21 and the hot air generation chamber 22, allowing for ventilation. As shown in Figure 3, an intake port 23a, consisting of multiple openings, is formed in the center of the partition plate 23 to draw air from the food storage chamber 21 into the hot air generation chamber 22. In addition, the partition plate 23 is provided with an outlet port 23b around the intake port 23a to blow air from the hot air generation chamber 22 into the food storage chamber 21. Furthermore, the partition plate 23 is attached to the cooking cabinet 20 such that an air passage 23c is formed between it and the ceiling wall, bottom wall, front wall, and rear wall of the cooking cabinet 20, and the air from the hot air generation chamber 22 is sent to the food storage chamber 21 through the outlet 23b and the air passage 23c. The food storage chamber 21 of the cooking cabinet 20 is provided with a pair of left and right support frames 24 that support trays called hotel pans in a multi-tiered arrangement.

[0013] As shown in Figures 2 and 4, a heater 25 and a convection fan 26 are provided on the left side of the cooking chamber 20. The heater 25 heats the cooking chamber 20 and is wound in a ring shape around the left wall of the cooking chamber 20. The convection fan 26 circulates the air inside the cooking chamber 20 and is positioned inside the ring-shaped heater 25. When the heater 25 and convection fan 26 are activated, the air from the food storage chamber 21 is sent to the hot air generation chamber 22 through the intake port 23a. The air blown outwards centrifugally from the convection fan 26 is heated by the heater 25 inside the hot air generation chamber 22 to become hot air, and the heated hot air is sent to the food storage chamber 21 through the outlet port 23b and the ventilation passage 23c. As shown in Figure 4, a temperature sensor 27 is provided on the left wall of the cooking chamber 20, and the temperature sensor 27 detects the temperature inside the cooking chamber 20.

[0014] As shown in FIG. 5, a tank 14 is provided at the rear of the machine room 12 of the housing 11, and a steam generator 30 for supplying steam into the cooking chamber 20 stands upright above the tank 14. As shown in FIG. 6, the steam generator 30 generates steam by heating water through induction heating, and includes a cylindrical steam generation container 31 having a steam ejection port 31a for ejecting steam generated from the stored water at its upper end, heating means 36 for heating the water in the steam generation container 31, and a guide and delivery unit 40 for guiding the steam generated in the steam generation container 31 horizontally from a delivery port 44a to a delivery destination adjacent thereto, i.e., into the cooking chamber 20.

[0015] As shown in FIG. 6, the steam generation container 31 is a substantially cylindrical container with openings at both the top and bottom. The upper opening serves as the steam ejection port 31a for ejecting steam, and the lower opening serves as a drain port 31b for discharging water. A drain valve 32 is provided below the steam generation container 31. When the drain valve 32 is closed, the steam generation container 31 can store water, and the water in the steam generation container 31 is drained when the drain valve 32 is opened.

[0016] As shown in FIGS. 5 and 6, a water level detection tank 33 stands upright behind the steam generation container 31, and the lower part of the water level detection tank 33 is connected in communication with the lower part of the steam generation container 31. A water level sensor 34 is provided in the water level detection tank 33, and the water level sensor 34 detects the water level in the steam generation container 31 by detecting the water level in the water level detection tank 33. Further, a water supply pipe 35 is connected to the water level detection tank 33. Water from the water supply source is sent from the water supply pipe 35 to the water level detection tank 33, and the water in the water level detection tank 33 is sent to the steam generation container 31 through the lower communication part.

[0017] As shown in Figure 6, the heating means 36 heats the water in the steam generating container 31, and in this embodiment, the water in the steam generating container 31 is heated by induction heating. The heating means 36 comprises a plurality of rod-shaped heating elements 37 made of magnetic material and an induction heating coil 38 wound in a coil shape around the outer circumference of the steam generating container 31. Eddy currents flow through the heating elements 37 due to the influence of the magnetic field generated when a high-frequency current is supplied to the induction heating coil 38, and the heating elements 37 heat the water in the steam generating container 31 by Joule heating generated by the electrical resistance when these eddy currents flow.

[0018] As shown in Figures 5 and 6, a guide and discharge section 40 is provided on the upper side of the steam generating container 31 to guide the steam horizontally into the adjacent cooking chamber 20 as a destination. As shown in Figure 6, the guide and discharge section 40 comprises a steam discharge cylinder 41 and a connecting cylinder 44 that connects the steam discharge cylinder 41 to the cooking chamber 20. The steam discharge cylinder 41 comprises an upright section 42 that rises upward from the nozzle 31a at the upper end of the steam generating container 31, and a guide section 43 that extends from the right circumferential surface of the upright section 42 toward the adjacent destination cooking chamber 20 to guide the steam toward the cooking chamber 20. The upright section 42 is substantially cylindrical in shape and rises upward from the nozzle 31a at the upper end of the steam generating container 31, and steam can pass through its interior. The ceiling wall of the upright section 42 slopes downward from the cooking chamber 20 side, which is the destination for steam, to the opposite side. As a result, water from condensation adhering to the lower surface of the ceiling wall of the upright section 42 easily flows down to the opposite side of the cooking chamber 20 side, which is the destination for steam.

[0019] As shown in FIGS. 6 and 7, the guide part 43 includes an inclined part 43a that extends obliquely upward from the lower part of the circumferential surface of the upright part 42 on the side of the cooking chamber 20, and a horizontal part 43b that extends horizontally from the tip of the inclined part 43a toward the cooking chamber 20. An annular recess 43c is formed on the inner circumferential surface of the horizontal part 43b of the guide part 43 on the tip side, and a connection cylinder 44 is fitted into the annular recess 43c. The connection cylinder 44 extends toward the cooking chamber 20, and the delivery port 44a at the tip of the connection cylinder 44 is communicatively connected to the steam inlet 20b of the cooking chamber 20. The steam generated in the steam generation container 31 rises in the upright part 42 from the jet outlet 31a, and the steam in the upright part 42 is guided into the cooking chamber 20 through the guide part 43 and the connection cylinder 44.

[0020] As shown in FIG. 6, since hot water splashes up together with the steam from the jet outlet 31a at the upper end of the steam generation container 31, a hot water delivery prevention member 45 is provided in the upright part 42 to prevent the hot water splashing up from the jet outlet 31a from being sent to the guide part 43. The hot water delivery prevention member 45 has a substantially cylindrical shape with its upper surface closed, and is erected concentrically with the upright part 42 from the steam jet outlet 31a of the steam generation container 31. A steam outlet 45a is formed on the upper part of the circumferential surface of the hot water delivery prevention member 45 on the side opposite to the cooking chamber 20 side, which is the delivery destination of the steam. The steam boiling up from the steam jet outlet 31a of the steam generation container 31 rises through the hot water delivery prevention member 45 and is sent into the upright part 42 from the steam outlet 45a. On the other hand, although the hot water splashing up together with the steam from the jet outlet 31a at the upper end of the steam generation container 31 rises inside the hot water delivery prevention member 45, it hits the circumferential surface including the upper surface of the hot water delivery prevention member 45 and flows down into the steam generation container 31 from the jet outlet 31a. Also, even if the hot water splashing up from the jet outlet 31a at the upper end of the steam generation container 31 flows out into the upright part 42 from the outlet 45a, since the outlet 45a is formed on the side opposite to the cooking chamber 20, it is difficult for the hot water flowing out from the outlet 45a to flow into the cooking chamber 20 through the guide part 43. Thus, the steam boiling up and the hot water splashing up from the jet outlet 31a at the upper end of the steam generation container 31 are separated to a certain extent inside the hot water delivery prevention member 45, and only the steam is sent to the cooking chamber 20 through the guide part 43 and the connection cylinder 44.

[0021] When steam rising from the nozzle 31a at the upper end of the steam generating container 31 passes through the steam delivery cylinder 41 and the connecting cylinder 44, condensation is likely to form on the inside of the steam delivery cylinder 41 and the connecting cylinder 44. Even if condensation adheres to the inside of the upright portion 42 of the steam delivery cylinder 41, the condensation is likely to flow down into the steam generating container 31. In contrast, water from condensation that forms on the inside of the guide portion 43 of the steam delivery cylinder 41 and the connecting cylinder 44 may flow into the cooking chamber 20 along with the steam that is sprayed towards the cooking chamber 20.

[0022] As shown in Figures 6 and 7, a leak prevention cylinder 46 is detachably fitted inside the connecting cylinder 44. The cylinder 46 has a shielding portion 46b that prevents hot water that flows into the guide portion 43 of the steam delivery cylinder 41 along with the steam, and water that condenses between the guide portion 43 of the steam delivery cylinder 41 and the inside of the connecting cylinder 44, from flowing out of the outlet 44a of the connecting cylinder 44. The leak prevention cylinder 46 comprises a cylindrical body portion 46a that is detachably fitted inside the connecting cylinder 44, a shielding portion 46b that covers the lower half of the outlet 44a of the connecting cylinder 44 at the end of the body portion 46a on the cooking chamber 20 side, and an outlet 46c that sends steam to the upper side of the shielding portion 46b at the end of the body portion 46a on the cooking chamber 20 side. The outlet 46c is set to have an opening area that can supply sufficient steam into the cooking chamber 20.

[0023] A flange portion 46d is formed on the end of the cylindrical body portion 46a of the spill prevention cylinder 46, on the end opposite to the cooking cabinet 20 side. The flange portion 46d is engaged between the end of the annular recess 43c in the horizontal portion 43b of the guide portion 43 and the end of the connecting cylinder 44. Because the flange portion 46d is engaged while being sandwiched between the end of the annular recess 43c and the connecting cylinder 44, the spill prevention cylinder 46 is restricted from moving axially inside the connecting cylinder 44. As shown in Figures 6 to 8, a fixing bracket 47 is provided on the shielding portion 46b of the spill prevention cylinder 46, and the spill prevention cylinder 46 is detachably fixed to the left side wall of the cooking cabinet 20 by the fixing bracket 47. A return portion 47a is formed on the upper part of the fixing bracket 47, extending inward from the cylindrical body portion 46a of the spill prevention cylinder 46. The return portion 47a makes it difficult for hot water or water accumulating at the bottom of the cylindrical body portion 46a of the spill prevention cylinder 46 to splash out towards the cooking cabinet 20 side.

[0024] When steam rising from the nozzle 31a at the upper end of the steam generating container 31 passes through the steam delivery cylinder 41 and the connecting cylinder 44, condensation is likely to occur inside the steam delivery cylinder 41 and the connecting cylinder 44. Although the water from condensation that occurs inside the upright portion 42 of the steam delivery cylinder 41 easily returns to the steam generating container 31, the water from condensation that occurs inside the guide portion 43 of the steam delivery cylinder 41 and the connecting cylinder 44 does not easily return to the steam generating container 31. More specifically, although the inclined portion 43a of the guide portion 43 is inclined downward toward the steam generating container 31, the water from condensation that occurs inside the inclined portion 43a of the guide portion 43 does not easily return to the steam generating container 31 due to the force of the steam flowing from the upright portion 42 toward the guide portion 43. Furthermore, since the horizontal section 43b of the guide section 43 and the connecting cylinder 44 extend horizontally and are not inclined downward toward the steam generating container 31, water due to condensation generated inside the guide section 43 and the connecting cylinder 44 tends to accumulate at the bottom of the horizontal section 43b of the guide section 43 and the connecting cylinder 44. In addition, since steam is forcefully discharged from the upright section 42 toward the guide section 43, the water that accumulates at the bottom of the horizontal section 43b of the guide section 43 and the connecting cylinder 44 tends to flow out toward the cooking chamber 20. An outflow prevention cylinder 46 equipped with a shielding section 46b that covers the lower half of the outlet 44a is inserted through the connecting cylinder 44. As a result, even if water due to condensation accumulates at the bottom of the guide section 43 and the connecting cylinder 44, the water due to condensation does not flow out of the outlet 44a into the cooking chamber 20 due to the shielding section 46b.

[0025] As shown in Figure 9, the cooking appliance 10 is equipped with a control device 50, which is connected to the heater 25, convection fan 26, temperature sensor 27, and steam generator 30. The control device 50 has a microcomputer (not shown), which includes a CPU, RAM, ROM, and timer (all not shown) connected via a bus. The control device 50 has a cooking program in its ROM for heating and cooking food in the cooking chamber 20. The cooking program includes three types of cooking programs: a hot air mode cooking program that heats and cooks food using convection-generated hot air by operating the heater 25 and convection fan 26; a steam mode cooking program that heats and cooks food using convection-generated hot air containing steam by operating the convection fan 26 and steam generator 30; and a combination mode cooking program that heats and cooks food using high-temperature hot air containing convection-generated steam by operating the heater 25, convection fan 26, and steam generator 30. Furthermore, the above-mentioned cooking programs, which store the set temperature, steam volume, and cooking time inside the cooking chamber 20 according to the cooking of the ingredients, are pre-set in the ROM, and it is also possible to set each cooking program with the set temperature, steam volume, and cooking time inside the cooking chamber 20 according to the user's needs.

[0026] When a cooking program, such as the combi mode cooking program, is executed, the heater 25 and convection fan 26 operate, causing the air inside the cooking chamber 20 to circulate as hot air. At the same time, steam is supplied to the cooking chamber 20 from the steam generator 30, and the food placed inside the cooking chamber 20 is heated and cooked by the hot air containing the steam. When the steam generator 30 generates steam, a high-frequency current is supplied to the induction heating coil 38, causing eddy currents to flow in the heating element 37 due to the influence of the magnetic field generated by the induction heating coil 38. The heating element 37 generates heat due to the electrical resistance when the eddy currents flow. The water in the steam generating container 31 is heated by the heating element 37 and becomes hot water, and steam is generated from the water surface in the steam generating container 31. The steam generated in the steam generating container 31 rises through the hot water discharge prevention member 45 from the nozzle 31a and is discharged into the upright portion 42 of the steam discharge cylinder 41 from the outlet 45a of the hot water discharge prevention member 45. Steam from the upright section 42 is introduced into the cooking chamber 20 through the steam inlet 20b via the guide section 43 and the connecting cylinder 44.

[0027] The steam generator 30 used in the aforementioned cooking appliance 10 includes a steam generating container 31 having a nozzle 31a for discharging steam generated from water stored inside, a heating means 36 for heating the water inside the steam generating container 31, and a guided discharge unit 40 for guiding the steam generated inside the steam generating container 31 from the nozzle 31a to the cooking chamber 20, which is the adjacent destination in the horizontal direction. In this steam generator 30, the outlet 44a for discharging steam to the cooking chamber 20, which is the destination of the steam discharged by the guided discharge unit 40, is provided with a shielding unit 46b that covers the lower half in a way that allows steam to pass through, preventing hot water or water inside the guided discharge unit 40 from flowing out of the outlet 44a.

[0028] In this embodiment, the guided delivery unit 40 delivers steam to the cooking cabinet 20 as a destination for steam adjacent to the horizontal direction, and comprises a steam delivery cylinder 41 having an upright portion 42 provided above the steam outlet 31a of the steam generating container 31 and a guide portion 43 extending from the circumferential surface of the upright portion 42 toward the cooking cabinet 20, and a connecting cylinder 44 that connects the guide portion 43 to the cooking cabinet 20. In the guided delivery unit 40, since the horizontal portion 43b of the guide portion 43 and the connecting cylinder 44 extend horizontally toward the cooking cabinet 20, water due to condensation when hot water or steam that splashes up and flows in with the steam from the outlet 31a of the steam generating container 31 passes through the horizontal portion 43b and the lower part of the connecting cylinder 44 tends to accumulate, and there was a risk that the condensed water would flow out into the cooking cabinet 20 from the outlet 44a of the connecting cylinder 44. The guide discharge unit 40 that sends steam into the cooking chamber 20 is provided with a shielding section 46b that covers the lower half of the outlet 44a while allowing steam to pass through, thereby preventing hot water or water from flowing out of the guide discharge unit 40 into the cooking chamber 20 from the outlet 44a. This prevents hot water or water from flowing out of the outlet 44a into the cooking chamber 20, particularly from the lower part of the horizontal section 43b and the connecting cylinder 44 of the guide discharge unit 40. In this embodiment, the shielding section 46b covers the lower half of the outlet 44a, but the present invention is not limited to this, and if the amount of hot water or water that accumulates in the lower part of the horizontal section 43b and the connecting cylinder 44 is small, the shielding section 46b may cover only the lower part of the outlet 44a.

[0029] Furthermore, in this embodiment, an outflow prevention cylinder 46, which has a shielding portion 46b that covers the lower half while allowing steam to pass through the outlet 44a, is detachably fitted into the connecting cylinder 44 of the guided discharge unit 40. By fitting the outflow prevention cylinder 46 into the connecting cylinder 44 of the guided discharge unit 40, the shielding portion 46b can be provided at the outlet 44a of the guided discharge unit 40, making it easier to attach the shielding portion 46b to the outlet 44a. In addition, even in a steam generator that does not have a shielding portion 46b at the outlet 44a of the guided discharge unit 40, by fitting the outflow prevention cylinder 46 into the connecting cylinder 44 of the guided discharge unit 40, a shielding portion 46b can be provided at the outlet 44a of the guided discharge unit 40, preventing water caused by condensation inside the guided discharge unit 40 from flowing into the cooking chamber 20. In this embodiment, the spill prevention cylinder 46 is fitted over the entire axial length of the connecting cylinder 44 of the guide delivery section 40. However, the present invention is not limited to this, and the spill prevention cylinder 46 may be shorter in the axial direction and fitted to the end of the connecting cylinder 44 on the outlet side 44a.

[0030] In the embodiment described above, the heating means 36 of the steam generator 30 is an induction heating type heating means, but it is not limited to this, and the heating means 36 may be a gas combustion type heating means or an electric heater such as a sheath heater. Also, the guide delivery section 40 is composed of a steam delivery cylinder 41 and a connecting cylinder 44, but it is not limited to this, and the steam delivery cylinder 41 and the connecting cylinder 44 may be integrally formed. [Explanation of symbols]

[0031] 20...Destination (cooking cabinet), 30...Steam generator, 31...Steam generating container, 31a...Outlet, 36...Heating means, 40...Guiding discharge section, 44a...Outlet, 46...Outlet prevention cylinder, 46b...Shielding section.

Claims

1. A steam generating vessel having an outlet that ejects steam generated from water stored inside, A heating means for heating the water in the steam generating container, A steam generator comprising a guide and discharge unit that guides the steam generated in the steam generating container from the nozzle to an adjacent discharge destination in the horizontal direction, A steam generator characterized in that the steam outlet for sending steam guided by the guided delivery unit to the destination is provided with a shielding portion that covers at least the lower part in a manner that allows steam to pass through, thereby preventing water inside the guided delivery unit from flowing out of the outlet.

2. In the steam generator according to claim 1, A steam generator characterized in that a leak prevention cylinder, which has a shielding portion that covers at least the lower part in a manner that allows steam to pass through from the outlet, is detachably fitted to at least the outlet-side end of the guided discharge section.

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