Steam oven

Abstract

The steam oven comprises a main oven body provided with an air outlet, an inner container, a steam generator, a condensation assembly and a water tank, the water tank is provided with a first water passing opening and a second water passing opening, the first water passing opening is communicated with the steam generator, the inner container comprises a bottom plate and a top plate provided with a steam exhaust opening, and the steam exhaust opening is communicated with the bottom plate. The condensation assembly is used for condensing steam from the steam exhaust port and converging condensed water into the bottom plate; the condensation assembly comprises a shell, a condenser and a water pump fixed to the shell, a condensation cavity is formed in the shell, one end of the condensation cavity is communicated with the air outlet, the condenser is arranged in the condensation cavity, the condenser is further provided with a water cooling channel in a winding mode, the inlet end of the water cooling channel is communicated with the second water passing opening through the water pump, and the outlet end of the water cooling channel is communicated with the second water passing opening. The outlet end of the water cooling channel communicates with the first water passing opening. The double-condensation structure design of the condenser and the water cooling channel is adopted, the condensation effect and the condensation water amount of the condenser are improved, the cost is controllable, and the economical efficiency is good.

Description

Technical Field

[0001] This utility model relates to the field of oven technology, and in particular to a steam oven. Background Technology

[0002] A steam oven uses water to generate steam inside its cavity, which is then used to bake food. Because steam ovens continuously produce steam during use, they typically have a vent to release excess steam and balance the internal and external pressure.

[0003] This will shorten the operating time of the steam oven's water tank, requiring multiple water refills when cooking multiple dishes, thus affecting the user experience. Furthermore, the pre-cooling of the steam vented from the inner cavity of the steam oven will form condensate, and directly draining the condensate will result in waste.

[0004] To address the aforementioned issues, existing steam ovens have proposed solutions to condense the discharged steam and recycle the condensate. However, existing solutions or condensation methods are too simplistic, resulting in poor steam condensation. Alternatively, the use of special phase change materials not only requires advanced manufacturing processes but also increases product costs, leading to poor economic efficiency. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a steam oven that solves the problems of existing solutions or condensation methods that are too simple, resulting in poor steam condensation effect, or the use of special phase change materials that result in poor economy.

[0006] To solve the above-mentioned technical problems, the technical solution used in this utility model is as follows:

[0007] The present invention discloses a steam oven, comprising a main body, wherein the main body is provided with a steam outlet, an inner liner, a steam generator and a water tank, the water tank is provided with a first water inlet connected to the steam generator, the inner liner includes a top plate and a bottom plate, the top plate is provided with a steam vent, and a heating system is provided below the bottom plate;

[0008] It also includes a condensation assembly for condensing steam from the exhaust port and collecting condensate into the base plate for reuse; the water tank is also provided with a second water inlet;

[0009] The condensation assembly includes a housing, a condenser, and a water pump. The water pump is fixed to the housing. A condensation chamber is provided inside the housing. One end of the condensation chamber is connected to the air outlet. The condenser is disposed inside the condensation chamber. The condenser is also surrounded by a water-cooling channel. The inlet end of the water-cooling channel is connected to the second water inlet through the water pump. The outlet end of the water-cooling channel is connected to the first water inlet.

[0010] Preferably, a through-flow heat dissipation duct is provided inside the housing, and the condenser is disposed inside the heat dissipation duct;

[0011] The air inlet of the heat dissipation duct is equipped with a fan, and the air outlet leads to the air outlet.

[0012] More preferably, the condenser includes a base plate, and heat sinks are respectively provided on the upper and lower sides of the base plate at intervals, the heat sinks extending from the air inlet end to the air outlet end of the heat dissipation duct;

[0013] The seat plate is provided with internal through holes that run through the heat dissipation duct at intervals, and adjacent internal through holes are connected in sequence through adapter pipes provided on the same side.

[0014] More preferably, the housing includes an upper cover and a lower cover, which together form the heat dissipation duct. The upper cover, the lower cover, and the condenser are all provided with vent holes corresponding to the exhaust port.

[0015] The vent is sealed to the lower cover at the vent hole of the lower cover.

[0016] Preferably, the housing includes an upper cover and a lower cover, which together form the condensation chamber. The lower side plate of the lower cover is provided with a water inlet, which is connected to a return water pipe. The other end of the return water pipe leads to the bottom plate of the inner liner.

[0017] More preferably, the lower side plate of the lower cover is inclined relative to the horizontal plane, and the water inlet is located on the lower side of the lower side plate.

[0018] Preferably, the housing includes an upper cover and a lower cover, which together form the condensation chamber.

[0019] The upper cover includes a first cover shell and a second cover shell. The water pump is fixed to the first cover shell, and the first cover shell and the second cover shell are detachably connected to the lower cover.

[0020] Preferably, the first cover is made of metal.

[0021] Preferably, the base plate is provided with a connecting groove and an annular first groove and a second groove. The first groove is provided along the edge of the base plate, and the second groove is provided in the middle of the base plate and surrounded by the second groove. The first groove and the second groove are connected through the connecting groove, and the base plate slopes downward from its edge to its middle.

[0022] Preferably, a heat insulation layer is provided between the top plate and the shell, and a steam vent pipe is provided between the heat insulation layer and the top plate. One end of the steam vent pipe is connected to the steam vent, and the other end passes through the heat insulation layer and is sealed to the shell.

[0023] Compared with the prior art, the main advantages of the steam oven described in this utility model are as follows:

[0024] This invention condenses incoming steam by setting up a condenser, and the condenser is also surrounded by a water-cooling channel, which enhances the condensation function of the condenser. This dual condensation structure design greatly improves the condensation effect and the amount of condensate.

[0025] Both the condenser and the water-cooling channel use conventional condensation methods, achieving cost control. The inlet of the water-cooling channel is connected to the second water inlet via the water pump, and the outlet of the water-cooling channel is connected to the first water inlet. This allows the water in the existing water tank of the steam oven to be recycled and flow through the water-cooling channel to remove heat, eliminating the need for a separate water tank and preventing water waste. This not only simplifies the connection piping and the internal space of the oven but also reduces additional costs, resulting in good overall economic efficiency.

[0026] Therefore, it can solve the problems of poor steam condensation effect due to the single condensation method in existing solutions or condensation methods, or poor economic efficiency due to the use of special phase change materials. Attached Figure Description

[0027] The above and other objects, features, and advantages of this invention will become clearer through a more detailed description of the preferred embodiments shown in the accompanying drawings. The same reference numerals indicate the same parts throughout the drawings, and the drawings are not intentionally drawn to scale with actual dimensions; the focus is on illustrating the gist of this invention.

[0028] Figure 1 A three-dimensional structure of a steam oven provided in this embodiment of the utility model Figure 1 ;

[0029] Figure 2 A three-dimensional structure of a steam oven provided in this embodiment of the utility model Figure 2 ;

[0030] Figure 3 A three-dimensional structure of a steam oven provided in this embodiment of the utility model Figure 3 ;

[0031] Figure 4 A three-dimensional structure of a steam oven provided in this embodiment of the utility model Figure 4 ;

[0032] Figure 5 This is a schematic diagram of the structure of the condensation assembly provided in an embodiment of the present utility model;

[0033] Figure 6 This is a schematic diagram of the internal structure of the condensation assembly provided in an embodiment of the present invention;

[0034] Figure 7 This is a schematic diagram of the structure of the condenser provided in an embodiment of the present utility model;

[0035] Figure 8 An exploded structural diagram of the shell provided for an embodiment of this utility model;

[0036] Attached diagram description: Main casing 100; Condensation assembly 200;

[0037] Exhaust port 1, air outlet 2, inner liner 3, top plate 310, bottom plate 320, connecting groove 321, first groove 322, second groove 323, steam generator 4, water tank 5, first water inlet 510, second water inlet 520, heating system 6, shell 7, upper cover 710, first cover shell 711, second cover shell 712, lower cover 720, steam vent 730, water inlet 740, condenser 8, base plate 810, heat sink 820, water pump 9, heat dissipation duct 10, water cooling channel 11, inner through hole 110, adapter pipe 120, fan 12, sealing ring 13, return water pipe 14, insulation layer 15, exhaust pipe 16. Detailed Implementation

[0038] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand this utility model and implement it. However, the embodiments are not intended to limit this utility model. In this embodiment, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this utility model.

[0039] It should be noted that when one element is considered to be "connected" to another element, it can be directly connected to and integrated with the other element, or there may be an intervening element present. The terms "mounted," "one end," "the other end," and similar expressions used in this invention are for illustrative purposes only.

[0040] This embodiment provides a steam oven, such as Figures 1 to 8 As shown, the oven includes a main chamber 100, which is provided with an air outlet 2, an inner liner 3, a steam generator 4, and a water tank 5. The water tank 5 is provided with a first water inlet 510, which is connected to the steam generator 4 to provide steam for the steam oven to generate steam. The inner liner 3 includes a top plate 310 and a bottom plate 320. The top plate 310 is provided with a steam vent 1 (i.e., the steam vent 1 used by the steam oven to balance the internal and external pressure). A heating system 6 is provided below the bottom plate 320.

[0041] It also includes a condenser assembly 200, which is used to condense the steam from the exhaust port 1 and collect the condensate into the base plate 320 for reuse; the water tank 5 is also provided with a second water inlet 520;

[0042] The condensing assembly 200 includes a housing 7, a condenser 8, and a water pump 9. The water pump 9 is fixed to the housing 7. A condensing chamber is provided inside the housing 7. One end of the condensing chamber is connected to the air outlet 2 to dissipate heat and discharge uncondensed steam. The condenser 8 is located inside the condensing chamber. The condenser 8 is also surrounded by a water cooling channel 11. The inlet end of the water cooling channel 11 is connected to the second water inlet 520 through the water pump 9, and the outlet end of the water cooling channel 11 is connected to the first water inlet 510.

[0043] In this embodiment, the condenser 8 is provided to condense the incoming steam. At the same time, the condenser 8 is also surrounded by a water cooling channel 11. The water cooling channel 11 can absorb and remove the heat on the condenser 8, reduce the internal ambient temperature of the shell 7, and thus enhance the condensation function of the condenser 8. This dual condensation structure design greatly improves the condensation effect and condensate volume of the condenser 8.

[0044] Both the condenser 8 and the water-cooling channel 11 are conventional condensation methods, achieving cost control. The inlet end of the water-cooling channel 11 is connected to the second water inlet 520 through the water pump 9, and the outlet end of the water-cooling channel 11 is connected to the first water inlet 510. Thus, the water in the existing water tank 5 of the steam oven can be recycled to flow through the water-cooling channel 11 and carry away the heat. There is no need to set up a separate water tank 5, and there is no waste of water. This not only simplifies the connection pipeline and the internal space of the oven, but also reduces the additional cost, resulting in good overall economic efficiency.

[0045] Therefore, it can solve the problems of poor steam condensation effect due to the single condensation method in existing solutions, or poor economic efficiency due to the use of special phase change materials. Among them, the condenser 8 can be, for example... Figure 3 The heat sink shown is for the 820 type condenser 8.

[0046] In a preferred embodiment, such as Figure 2 and Figure 3As shown, a through-flow heat dissipation duct 10 is provided inside the housing 7, and the condenser 8 is disposed within the heat dissipation duct 10. A fan 12 is provided at the air inlet end of the heat dissipation duct 10, and the air outlet end leads to the air outlet 2. By providing the fan 12, the heat dissipation speed of the condenser 8 can be accelerated, the ambient temperature of the condensing component 200 can be reduced, thereby promoting steam condensation and improving the condensation effect of the condenser 8. In this embodiment, the fixing base of the fan 12 is integrated with the structure of the housing 7, which not only improves the structural compactness and overall appearance, but also saves space and facilitates the structural layout of the steam oven.

[0047] In a further preferred embodiment, such as Figure 7 As shown, the condenser 8 includes a base plate 810. Heat sinks 820 are spaced apart on the upper and lower sides of the base plate 810. The heat sinks 820 extend from the air inlet end of the heat dissipation duct 10 to the air outlet end, so that the gap between the heat sinks 820 is in the direction of the air blown by the fan 12. This can avoid the airflow from becoming turbulent due to obstruction, improve the heat dissipation rate of the condenser 8, and thus improve the condensation effect. The base plate 810 is provided with internal through holes 110 that run through the heat dissipation duct 10 at intervals. Adjacent internal through holes 110 are connected in sequence through the adapter pipe 120 provided on the same side end. In this way, a continuous water cooling channel 11 can be formed in the base plate 810, and the water cooling channel 11 can cover all the heat sinks 820 on the base plate 810, which not only reduces the structural space of the condenser 8, but also greatly improves the condensation effect.

[0048] In a further preferred embodiment, such as Figure 5 , 6 and Figure 8 As shown, the housing 7 includes an upper cover 710 and a lower cover 720. When the upper cover 710 and the lower cover 720 are closed, they form a heat dissipation duct 10. The upper cover 710, the lower cover 720, and the condenser 8 are all provided with steam vents 730 corresponding to the exhaust port 1. The structural combination of the upper cover 710 and the lower cover 720 provides a more comfortable installation space for the internal components of the housing 7, making installation more convenient. The exhaust port 1 is sealed to the lower cover 720 at the steam vent 730, preventing steam from escaping before entering the condenser 8, thereby improving the steam condensation recovery rate. In this embodiment, a sealing ring 13 is provided between the exhaust port 1 and the steam vent 730 of the lower cover 720, which not only ensures a sealed connection with the lower cover 720 but also allows for a detachable connection between the lower cover 720 and the main body.

[0049] In another preferred embodiment, such as Figure 3 and Figure 8As shown, the housing 7 includes an upper cover 710 and a lower cover 720. When the upper cover 710 and the lower cover 720 are closed, they form a condensation chamber. The lower side plate of the lower cover 720 is provided with a water inlet 740, which is connected to a return water pipe 14. The other end of the return water pipe 14 leads to the bottom plate 320 of the inner tank 3, which can send condensate to the bottom plate 320, where it is heated and evaporated by the heating system 6 below the bottom plate 320 for reuse. More preferably, the lower side plate of the lower cover 720 is inclined relative to the horizontal plane, and the water inlet 740 is located on the lower side of the lower side plate, which can accelerate the flow of condensate to the water inlet 740 and prevent water accumulation in the condenser 8.

[0050] In a preferred embodiment, such as Figure 3 and Figure 8 As shown, the housing 7 includes an upper cover 710 and a lower cover 720, which together form a condensation chamber. The upper cover 710 includes a first cover shell 711 and a second cover shell 712, which are joined together to facilitate the installation of the condensation assembly 200. The water pump 9 is fixed to the first cover shell 711, and the first cover shell 711 and the second cover shell 712 are detachably connected to the lower cover 720 using methods such as screws or clips. Furthermore, the first cover shell 711 is made of metal to enhance its structural strength and improve the operational stability of the water pump 9.

[0051] In another preferred embodiment, such as Figure 3 As shown, the base plate 320 is provided with a connecting groove 321 and a first groove 322 and a second groove 323, both of which are annular. The first groove 322 is provided along the edge of the base plate 320, and the second groove 323 is provided in the middle of the base plate 320 and is surrounded by the second groove 323. The first groove 322 and the second groove 323 are connected by the connecting groove 321. The base plate 320 slopes downward from its edge to its middle. In this embodiment, condensate can flow from the first groove 322 to the second groove 323 through the connecting groove 321. At the same time, the first groove 322 and the second groove 323 also have a certain water storage function to prevent the steamed and baked items at the lower position from being soaked due to the increase of condensate. In addition, in the condensate reuse stage, the existing heating system 6 of the steam oven is used to heat and vaporize the condensate, eliminating the need for a separate steam generator, which is also beneficial for product cost control. It should be noted that the cross-sections of the connecting groove 321, the first groove 322, and the second groove 323 should not only serve as water guides but also facilitate cleaning.

[0052] In another preferred embodiment, such as Figure 2As shown, a heat insulation layer 15 is provided between the top plate 310 and the shell 7. A steam vent pipe 16 is provided between the heat insulation layer 15 and the top plate 310. One end of the steam vent pipe 16 is connected to the steam vent 1, and the other end passes through the heat insulation layer 15 and is sealed to the shell 7. The inner liner 3 is the heating zone. By providing the heat insulation layer 15, it can play a certain role in blocking heat radiation, preventing a large amount of heat from the inner liner 3 from being conducted to the condensing assembly 200, and further improving the condensing effect of the condenser 8; for example... Figure 5 In the embodiment shown, the heat insulation layer 15 is a layered structure spaced apart from the top plate 310. The exhaust pipe 16 passes through the heat insulation layer 15 and is connected to the shell 7 through the sealing ring 13, which ensures a sealed connection with the shell 7 and prevents steam from escaping before entering the condenser 8.

[0053] In this specification, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0054] In the description of this specification, the references to terms such as "preferred embodiment," "another embodiment," "other embodiment," or "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0055] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A steam oven, comprising a main body, the main body being provided with a steam vent, an inner liner, a steam generator, and a water tank, the water tank being provided with a first water inlet communicating with the steam generator, the inner liner comprising a top plate and a bottom plate, the top plate being provided with a steam vent, and a heating system being provided below the bottom plate, characterized in that: It also includes a condensation assembly for condensing steam from the exhaust port and collecting condensate into the base plate for reuse; the water tank is also provided with a second water inlet; The condensation assembly includes a housing, a condenser, and a water pump. The water pump is fixed to the housing. A condensation chamber is provided inside the housing. One end of the condensation chamber is connected to the air outlet. The condenser is disposed inside the condensation chamber. The condenser is also surrounded by a water-cooling channel. The inlet end of the water-cooling channel is connected to the second water inlet through the water pump. The outlet end of the water-cooling channel is connected to the first water inlet.

2. A steam oven according to claim 1, characterized in that: The housing is provided with a through heat dissipation duct, and the condenser is disposed in the heat dissipation duct. The air inlet of the heat dissipation duct is equipped with a fan, and the air outlet leads to the air outlet.

3. A steam oven according to claim 2, characterized in that: The condenser includes a base plate, and heat sinks are provided at intervals on the upper and lower sides of the base plate, with the heat sinks extending from the air inlet end to the air outlet end of the heat dissipation duct. The seat plate is provided with internal through holes that run through the heat dissipation duct at intervals, and adjacent internal through holes are connected in sequence through adapter pipes provided on the same side.

4. A steam oven according to claim 2, characterized in that: The housing includes an upper cover and a lower cover, which together form the heat dissipation duct. The upper cover, the lower cover, and the condenser are all provided with vent holes corresponding to the exhaust port. The vent is sealed to the lower cover at the vent hole of the lower cover.

5. A steam oven according to claim 1, characterized in that: The shell includes an upper cover and a lower cover. When the upper cover and the lower cover are closed, they form the condensation chamber. The lower side plate of the lower cover is provided with a water inlet. The water inlet is connected to a return water pipe. The other end of the return water pipe leads to the bottom plate of the inner liner.

6. A steam oven according to claim 5, characterized in that: The lower side plate of the lower cover is inclined relative to the horizontal plane, and the water inlet is located on the lower side of the lower side plate.

7. A steam oven according to claim 1, characterized in that: The housing includes an upper cover and a lower cover, which together form the condensation chamber. The upper cover includes a first cover shell and a second cover shell. The water pump is fixed to the first cover shell, and the first cover shell and the second cover shell are detachably connected to the lower cover.

8. A steam oven according to claim 7, characterized in that: The first cover is made of metal.

9. A steam oven according to claim 1, characterized in that: The base plate is provided with a connecting groove and an annular first groove and a second groove. The first groove is provided along the edge of the base plate, and the second groove is provided in the middle of the base plate and is surrounded by the second groove. The first groove and the second groove are connected through the connecting groove, and the base plate slopes downward from its edge to its middle.

10. A steam oven according to claim 1, characterized in that: A heat insulation layer is provided between the top plate and the shell, and a steam vent pipe is provided between the heat insulation layer and the top plate. One end of the steam vent pipe is connected to the steam vent, and the other end passes through the heat insulation layer and is sealed to the shell.

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