Cooking apparatus

Abstract

The utility model relates to domestic appliance technical field discloses cooking equipment, include: cooking cavity, is equipped with exhaust hole on it, exhaust structure, including exhaust hood and exhaust valve piece, exhaust hood has the exhaust passage of communication exhaust hole and outside space in, exhaust hood is detachably connected on cooking cavity, and exhaust valve piece is pressed at exhaust hole, exhaust valve piece includes elastic deformation part, elastic deformation part can change shape under the action of pressure in cooking cavity, and can automatically adjust the amount of opening and closing along with pressure change. The elastic deformation part of exhaust valve piece in the application can change shape under the action of pressure in cooking cavity, and can automatically adjust the opening size of exhaust hole along with pressure change, so as to realize the automatic regulation of exhaust volume, ensure the steam temperature and pressure in cooking cavity under the steam mode, simple and reliable structure can also shorten the cooking time, improve food cooking effect.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, specifically to cooking equipment. Background Technology

[0002] As living standards improve, cooking appliances such as steam ovens, steam ovens, steam-grill combos, and microwave-steam-grill combos are becoming increasingly popular. To ensure that the steam inside the cavity is at a high temperature in steam mode and that the low-temperature steam can be discharged, exhaust vents are usually installed on the cooking cavity.

[0003] However, the exhaust volume of most existing exhaust windows is fixed. If the exhaust volume is set too large, the high-temperature steam in the cavity will escape too quickly from the exhaust structure in steam mode, and the steam temperature in the cavity will be maintained for a short time, resulting in poor cooking effect. At the same time, in order to maintain the cavity temperature, the steam generating components need to work continuously, which affects the service life of the whole machine. If the exhaust volume is set too small, in steam mode, when high-temperature steam is injected into the cavity, the low-temperature steam in the cavity cannot be discharged from the exhaust window quickly, resulting in slow heating, affecting cooking efficiency and poor user experience. Utility Model Content

[0004] In view of this, the present invention provides a cooking device to solve the problem that the exhaust volume of the exhaust window of the steam device in the prior art is fixed, which affects the cooking effect and cooking efficiency.

[0005] This utility model provides a cooking device, including:

[0006] The cooking cavity is equipped with an exhaust vent.

[0007] The exhaust structure includes an exhaust hood and an exhaust valve plate, the exhaust hood having an exhaust passage connecting the exhaust port and the external space;

[0008] The exhaust hood is detachably connected to the cooking cavity and presses the exhaust valve plate against the exhaust port;

[0009] The exhaust valve plate includes an elastic deformation part, which can deform under the pressure inside the cooking cavity and automatically adjust the opening and closing amount according to the pressure change.

[0010] Beneficial effects: The elastic deformation part of the exhaust valve plate can deform under the pressure in the cooking cavity and automatically adjust the opening size of the exhaust port according to the pressure change, thereby achieving automatic adjustment of the exhaust volume. This ensures the steam temperature and pressure in the cooking cavity in steam mode. The structure is simple and reliable, and it can also shorten the cooking time and improve the cooking effect. At the same time, when a large amount of steam is rapidly injected into the cooking cavity, the elastic deformation part can open the exhaust port, thereby releasing the pressure in the cavity, reducing the impact of pressure on the door, avoiding door vibration, improving the user's cooking experience, and effectively solving the problem of fixed exhaust volume of the exhaust window in existing steam equipment, which affects the cooking effect and cooking efficiency.

[0011] Furthermore, the exhaust hood not only works with the exhaust valve plate to discharge the low-temperature steam inside the cavity, but also presses the exhaust valve plate against the exhaust port to achieve the installation and fixation of the exhaust valve plate. By using the exhaust hood to install and fix the exhaust valve plate, no additional installation structure is required, which simplifies the structure, saves assembly steps, and improves assembly efficiency.

[0012] In one alternative embodiment, the exhaust valve plate further includes:

[0013] The mounting part is ring-shaped and is pressed against the outer periphery of the exhaust hole by the exhaust cover. The opening area in the middle of the mounting part corresponds to the exhaust hole.

[0014] The elastic deformation part is connected inside the mounting part, and the shape and size of the elastic deformation part match the shape and size of the opening area.

[0015] Beneficial effects: The exhaust hood presses the mounting part against the outer periphery of the exhaust port, thereby achieving a seal between the exhaust valve plate and the exhaust port, preventing steam or fumes from escaping through the gap between the exhaust valve plate and the cooking cavity, thus improving the overall sealing performance of the appliance. The opening area in the middle of the mounting part avoids the exhaust port, allowing steam or fumes discharged from the exhaust port to be discharged into the exhaust channel. The elastic deformation part is connected inside the mounting part, and the shape and size of the elastic deformation part match the shape and size of the opening area of ​​the mounting part, allowing steam or fumes discharged from the exhaust port to be discharged into the exhaust channel through the exhaust gap between the elastic deformation part and the mounting part.

[0016] In one optional embodiment, the elastic deformation portion includes:

[0017] Adjustment plate, used to cover or open the vent;

[0018] Connecting ribs connect the adjusting plate and the mounting part.

[0019] Beneficial effects: The adjusting plate is an elastic thin sheet that covers the outside of the exhaust port. It can deform when the pressure in the cooking cavity reaches the set value to adjust the size of the exhaust gap opening. The connecting ribs can connect the elastic deformation part and the mounting part without affecting the deformation of the adjusting plate.

[0020] In one optional embodiment, the elastically deformable part has an exhaust gap with the mounting part in the undeformed state, and the exhaust gap is smaller than a set value.

[0021] Beneficial effects: By setting the exhaust gap between the elastic deformation part and the mounting part and setting the exhaust gap within the set gap range, it is ensured that low-temperature steam can be quickly discharged from the exhaust gap during steam mode, and that the oil fumes produced during grilling mode can be smoothly discharged. At the same time, it is also ensured that the temperature of the cooking cavity can be stably maintained within the set temperature range during steam mode and grilling mode, thereby ensuring the cooking effect.

[0022] In one optional embodiment, the cooking cavity is provided with an exhaust area, which is strip-shaped and has several exhaust holes spaced apart within it.

[0023] And / or, the exhaust valve plate is a strip structure, and at least two elastic deformation parts are sequentially arranged in the opening area of ​​the mounting part along the length direction of the exhaust valve plate.

[0024] Beneficial effect: By setting the elastic deformation part to at least two pieces, the smaller elastic deformation part responds faster to pressure changes inside the cooking cavity compared to a large elastic deformation part.

[0025] In one alternative embodiment, one end of the exhaust hood is snapped onto the cooking cavity, and the other end is connected to the outer casing of the cooking device by screws.

[0026] Beneficial effects: One end of the exhaust hood is snapped and fixed to the cooking cavity, which facilitates the disassembly and assembly of the exhaust hood, the cooking cavity, and the exhaust valve plate. The other end of the exhaust hood is connected to the outer shell of the cooking equipment with screws, which can effectively ensure the fixing effect of the exhaust hood, thereby ensuring the stability and reliability of the entire exhaust structure.

[0027] In one alternative embodiment, a buckle is provided on the end of the exhaust hood near the cooking cavity;

[0028] The exhaust valve plate has a clearance hole through which the buckle can pass, and the cooking cavity has a snap-fit ​​structure. The buckle passes through the clearance hole and snaps into the snap-fit ​​structure.

[0029] Beneficial effects: The buckle passes through the clearance hole on the exhaust valve plate and engages with the snap-fit ​​structure on the cooking cavity, which can press the exhaust valve plate tightly onto the cooking cavity, thereby achieving effective fixation between the exhaust cover, the exhaust valve plate, and the cooking cavity, and facilitating disassembly and assembly.

[0030] In one alternative embodiment, the exhaust valve plate is provided with an annular groove;

[0031] The annular groove is located on the outer periphery of the exhaust valve plate and on the side wall near the exhaust hood. The inlet end of the exhaust hood abuts against and is limited within the annular groove.

[0032] Beneficial effects: The annular groove can form a positioning mechanism, allowing the exhaust cover and exhaust valve plate to quickly align, improving the assembly efficiency of the exhaust cover and exhaust valve plate, and also improving the stability of the fit between the exhaust cover and exhaust valve plate, preventing relative displacement or movement between the two.

[0033] In one optional embodiment, the vent is located on the top wall of the cooking cavity, and the cooking device further includes:

[0034] The rear panel has an air vent, and the exhaust hood is connected between the cooking cavity and the rear panel. The exhaust channel connects the exhaust hole and the air vent.

[0035] Beneficial effects: By placing the exhaust vent on the top wall of the cooking cavity, it is easy to connect to the exhaust cover. By opening the exhaust port on the rear panel, the exhaust port can be hidden, improving the aesthetics.

[0036] In one alternative implementation, the exhaust valve plate is a rubber plate or a silicone plate.

[0037] Beneficial effects: The exhaust valve plate is made of rubber or silicone, which is not only resistant to high temperature and has excellent sealing performance, but also has high elastic deformation capability. It automatically adjusts the deformation when the gas pressure changes, realizes dynamic sealing, and realizes dynamic adjustment of the exhaust volume of the exhaust structure.

[0038] In one alternative implementation, the cooking device is a steam oven, a steam oven, a steam-grill combination appliance, or a microwave-steam-grill combination appliance. Attached Figure Description

[0039] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0040] Figure 1This is a schematic diagram of the structure of the cooking equipment in the embodiment of this utility model;

[0041] Figure 2 This is an exploded view of the cooking equipment in an embodiment of this utility model;

[0042] Figure 3 This is a cross-sectional view of the cooking equipment in an embodiment of the present utility model;

[0043] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0044] Figure 5 This is a schematic diagram showing the disassembled cooking cavity, door, exhaust structure, and rear panel in an embodiment of this utility model;

[0045] Figure 6 This is a schematic diagram of the structure of the exhaust hood in an embodiment of this utility model;

[0046] Figure 7 This is a structural schematic diagram of the exhaust valve plate (undeformed state) from one perspective in an embodiment of this utility model;

[0047] Figure 8 This is a structural schematic diagram of the exhaust valve plate (undeformed state) from another perspective in an embodiment of this utility model;

[0048] Figure 9 This is a schematic diagram of the structure of the exhaust valve plate (deformed state) in an embodiment of this utility model.

[0049] Explanation of reference numerals in the attached figures:

[0050] 10. Cooking cavity; 101. Vent; 102. Steam nozzle; 103. Snap-fit ​​structure;

[0051] 20. Exhaust structure;

[0052] 21. Exhaust hood; 210. Exhaust passage; 211. Clip; 212. Bolt post;

[0053] 22. Exhaust valve plate; 220. Exhaust gap; 221. Elastic deformation part; 2211. Adjusting plate; 2212. Connecting rib; 222. Mounting part; 2220. Clearance hole; 2221. Annular groove;

[0054] 23. Screws;

[0055] 30. Outer shell; 31. Back panel; 32. U-shaped panel;

[0056] 40. Heating element;

[0057] 50. Door body; 51. Door sealing ring. Detailed Implementation

[0058] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0059] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, 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 limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0060] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0061] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0062] In related technologies, steam ovens and microwave steam ovens typically employ a structural design with an exhaust window at the top of the cavity to ensure the exhaust of high-temperature and low-temperature steam in steam mode, as well as the exhaust of high-temperature steam and fumes in grilling mode.

[0063] In steam mode, high-temperature steam is injected into the cavity, increasing the cavity pressure, while low-temperature steam is discharged from the cavity through the exhaust window; this maintains the high temperature of the steam inside the cavity, completing the cooking of the food. In grilling mode, the heating element inside the cavity operates intermittently according to an algorithm, allowing the cavity to cook the food at a high temperature. The fumes produced by the food are discharged from the cavity through the exhaust window, completing the cooking process.

[0064] The exhaust volume of the existing exhaust vent is fixed. When the exhaust volume of the designed exhaust vent is too large: In steam mode, the high-temperature steam in the cavity escapes too quickly from the exhaust vent, and the cavity steam temperature is maintained for a short time, resulting in poor cooking results; at the same time, in order to maintain the cavity temperature, the steam generating components need to work continuously, affecting the service life of the entire machine. In grilling mode, due to the large exhaust volume of the exhaust vent, the oil fumes are discharged while the cavity temperature is lost quickly, and the cavity temperature is maintained for a short time, resulting in poor cooking results; at the same time, in order to maintain the current cavity temperature, the heating element needs to work continuously, affecting the service life of the entire machine.

[0065] When the exhaust vent has a small exhaust capacity: In steam mode, when high-temperature steam is injected into the cavity, the low-temperature steam inside the cavity cannot be quickly discharged from the exhaust vent, resulting in slow heating and affecting cooking efficiency. Furthermore, when a large amount of steam is rapidly injected into the closed cooking cavity, the pressure inside the cavity will rise sharply, forming a pressure shock wave. The impact force will act on the door of the cooking equipment, causing the door to vibrate, resulting in a poor user experience.

[0066] The following is combined with Figures 1 to 9 The following describes embodiments of the present invention.

[0067] According to an embodiment of the present invention, the present invention provides a cooking device, including a cooking cavity 10 and an exhaust structure 20. The cooking cavity 10 is provided with an exhaust hole 101. The exhaust structure 20 includes an exhaust cover 21 and an exhaust valve plate 22. The exhaust cover 21 has an exhaust channel 210 that connects the exhaust hole 101 and the external space. The exhaust cover 21 is detachably connected to the cooking cavity 10 and presses the exhaust valve plate 22 against the exhaust hole 101. The exhaust valve plate 22 includes an elastic deformation part 221. The elastic deformation part 221 can deform under the pressure inside the cooking cavity 10 and can automatically adjust the opening and closing amount according to the pressure change.

[0068] In the above embodiment, the elastic deformation part 221 of the exhaust valve plate 22 can deform under the pressure inside the cooking cavity 10 and can automatically adjust the opening size of the exhaust port 101 with the pressure change, thereby realizing automatic adjustment of exhaust volume, ensuring the steam temperature and pressure inside the cooking cavity 10 in steam mode. The structure is simple and reliable, and can also shorten the cooking time and improve the cooking effect of food. At the same time, when a large amount of steam is rapidly injected into the cooking cavity, the elastic deformation part 221 can open the exhaust port 101, thereby releasing the pressure inside the cavity, reducing the impact of pressure on the door 50, avoiding door vibration, improving the user's cooking experience, and effectively solving the problem of fixed exhaust volume of the exhaust window of the steam equipment in the prior art, which affects the cooking effect and cooking efficiency.

[0069] Furthermore, the exhaust hood 21 not only works with the exhaust valve plate 22 to discharge the low-temperature steam in the cavity, but also presses the exhaust valve plate 22 against the exhaust port 101 to achieve the installation and fixation of the exhaust valve plate 22. By using the exhaust hood 21 to install and fix the exhaust valve plate 22, no additional installation structure is required, which simplifies the structure, saves assembly steps, and improves assembly efficiency.

[0070] In this embodiment, the cooking equipment is a steam cooking equipment. Specifically, the cooking equipment includes, but is not limited to, a steam oven, a steam-grill combination machine, or a microwave-steam-grill combination machine. Preferably, the cooking equipment is a steam-grill combination machine or a microwave-steam-grill combination machine. The cooking equipment has a steam mode and a grilling mode. In this embodiment, the elastic deformation part 221 can automatically adjust the opening and closing amount of the exhaust valve plate 22 according to the steam pressure in the cavity, thereby adjusting the opening size of the vent to adjust the exhaust volume, so that the cooking equipment can maintain the steam temperature and pressure in the steam mode and maintain the temperature inside the cooking cavity 10 in the grilling mode.

[0071] In some embodiments, combined with Figures 1 to 6 As shown, the exhaust hood 21 is a hollow shell with an internal exhaust channel 210. One end of the exhaust hood 21 is the inlet end, and the other end is the outlet end. The inlet end of the exhaust hood 21 is connected to the exhaust port 101, and the outlet end is connected to the air outlet on the outer shell 30 of the cooking equipment. The exhaust hood 21 is snapped or screwed 23 onto the cooking cavity 10. Preferably, the exhaust hood 21 is snapped and fixed onto the cooking cavity 10 for easy assembly and disassembly. A steam nozzle 102 is provided on the side wall of the cooking cavity 10, and the steam nozzle 102 is connected to the outlet of the steam generator through a steam delivery pipeline. The exhaust valve plate 22 is clamped and fixed between the exhaust hood 21 and the cooking cavity 10. The elastic deformation part 221 corresponds to the position of the vent hole 101. The elastic deformation part 221 covers the vent hole 101. When the pressure inside the cooking cavity 10 is greater than the set pressure value, the elastic deformation part 221 can deform away from the vent hole 101. When the pressure inside the cooking cavity 10 is deformed, the elastic deformation part 221 can move towards the vent hole 101 to restore the deformation, thereby realizing the automatic adjustment of the opening and closing amount of the vent valve plate 22, and thus adjusting the opening size of the vent hole 101.

[0072] In some embodiments, the exhaust valve plate 22 further includes a mounting portion 222, which is annular and is pressed against the outer periphery of the exhaust port 101 by the exhaust cover 21. The opening area in the middle of the mounting portion 222 corresponds to the exhaust port 101. An elastic deformation portion 221 is connected inside the mounting portion 222, and the shape and size of the elastic deformation portion 221 match the shape and size of the opening area.

[0073] In the above embodiment, the exhaust hood 21 can press the mounting portion 222 against the outer periphery of the exhaust port 101, thereby achieving a seal between the periphery of the exhaust valve plate 22 and the exhaust port 101, preventing steam or fumes from escaping from the gap between the periphery of the exhaust valve plate 22 and the cooking cavity 10, and improving the overall sealing performance. The opening area in the middle of the mounting portion 222 avoids the exhaust port 101, allowing steam or fumes discharged from the exhaust port 101 to be discharged into the exhaust channel 210. The elastic deformation portion 221 is connected inside the mounting portion 222, and the shape and size of the elastic deformation portion 221 match the shape and size of the opening area of ​​the mounting portion 222, allowing steam or fumes discharged from the exhaust port 101 to be discharged into the exhaust channel 210 through the exhaust gap 220 between the elastic deformation portion 221 and the mounting portion 222.

[0074] It should be explained that in this embodiment, "the shape and size of the elastic deformation part 221 matches the shape and size of the opening area of ​​the mounting part 222" can be understood as the shape and size of the elastic deformation part 221 being consistent with the shape and size of the opening area of ​​the mounting part 222, or the shape and size of the elastic deformation part 221 being slightly smaller than the shape and size of the opening area of ​​the mounting part 222.

[0075] In some embodiments, such as Figure 7 and Figure 8 As shown, in the undeformed state, the elastic deformation part 221 has an exhaust gap 220 between itself and the mounting part 222, and the exhaust gap 220 is less than a set value.

[0076] In the above embodiment, by providing an exhaust gap 220 between the elastic deformation part 221 and the mounting part 222, and setting the exhaust gap 220 within a set gap range, it is ensured that low-temperature steam can be quickly discharged from the exhaust gap 220 during steam mode, and that the oil fumes produced during grilling mode can be smoothly discharged. At the same time, it is also ensured that the temperature of the cooking cavity 10 can be stably maintained within the set temperature range during both steam mode and grilling mode, thereby ensuring the cooking effect.

[0077] The cooking device provided in this embodiment includes a cooking cavity 10, a door 50, a door sealing ring 51, an exhaust hood 21, an exhaust valve plate 22, and a heating element 40. The cooking cavity 10 has a front opening, and the door 50 is closably connected to the front opening of the cooking cavity 10. The door sealing ring 51 is provided on the door 50 to seal the opening of the door 50 and the cooking cavity 10, thereby forming a closed cooking cavity. The exhaust valve plate 22 is made of high-temperature resistant soft rubber (such as silicone or rubber). The exhaust cover 21 presses the mounting part 222 around the regulator exhaust valve plate 22 tightly against the cooking cavity 10. When the cooking equipment is closed, the cooking cavity 10 and the door 50 form a sealed cooking cavity under the sealing action of the door sealing ring 51. The food to be cooked is placed in the cooking cavity. When the cooking equipment is working, the oil fumes or steam in the cooking cavity 10 can only be discharged through the exhaust hole 101 on the cavity, and through the exhaust gap 220 between the elastic deformation part 221 of the exhaust valve plate 22 and the mounting part 222, and the exhaust channel 210 of the exhaust cover 21 to the outside of the cooking cavity 10. The cooking cavity 10 is provided with a steam nozzle 102, which is located on the side of the cooking cavity 10 and is used to deliver steam into the cooking cavity 10.

[0078] Furthermore, in steam mode: when the cooking device first starts working, there is no steam in the cooking cavity 10. High-temperature steam is injected into the cooking cavity 10 through the steam nozzle 102 until the cooking cavity 10 is injected with the set amount of steam. During this process, the steam pressure in the cooking cavity 10 fails to reach the point where the elastic deformation part 221 of the exhaust valve plate 22 deforms. The exhaust gap 220 between the mounting part 222 and the elastic deformation part 221 remains unchanged. Since the exhaust gap 220 between the mounting part 222 and the elastic deformation part 221 is relatively small, the high-temperature steam injected into the cooking cavity 10 also loses little through the exhaust channel 210. The high-temperature steam can quickly fill the cooking cavity 10, and the steam in the cooking cavity 10 can maintain a continuous high temperature.

[0079] When the cooking equipment is operating in steam mode, whenever the steam temperature in the cooking chamber 10 drops, high-temperature steam is injected into the cooking chamber 10 through the steam nozzle 102, increasing the steam pressure in the cooking chamber 10. When the pressure exceeds the set threshold, the elastic deformation part 221 of the exhaust valve plate 22 deforms under the action of steam pressure, and the opening of the exhaust gap 220 between the mounting part 222 and the elastic deformation part 221 becomes larger, allowing the low-temperature steam in the cooking chamber 10 to be quickly discharged from the opening to the outside of the cooking chamber 10. At the same time, it reduces the effect of the steam pressure shock wave in the cooking chamber 10 on the door 50, avoiding the vibration problem of the door 50 caused by the rapid injection of high-temperature steam.

[0080] Furthermore, when the high-temperature steam injected into the cooking cavity 10 reaches the set amount, the injection of high-temperature steam stops. After the pressure inside the cooking cavity 10 decreases, the elastic deformation portion 221 of the exhaust valve plate 22 returns to its original shape, and the opening of the exhaust gap 220 between the mounting portion 222 and the elastic deformation portion 221 becomes smaller, allowing the steam inside the cooking cavity 10 to maintain a continuous high temperature. The deformation of the elastic deformation portion 221 of the exhaust valve plate 22 changes with the change in the cavity steam pressure, automatically adjusting the size of the exhaust gap 220 opening to maintain the pressure and steam in the cooking cavity 10 at a continuous high temperature, shortening the cooking time and improving the cooking effect.

[0081] Furthermore, in the grilling mode, since the exhaust valve plate 22 is made of high-temperature resistant silicone or rubber material, the heating element 40 on the cooking cavity 10 continues to work. When the temperature of the cooking cavity 10 rises to the set value, the elastic deformation part 221 of the exhaust valve plate 22 will not deform. The exhaust gap 220 between the elastic deformation part 221 and the mounting part 222 is relatively small, allowing only oil fumes to be discharged. The exhaust volume is relatively small, and the temperature loss of the cooking cavity 10 is small. This allows the temperature of the cooking cavity 10 to rise quickly and also to maintain the temperature for a longer period of time, thereby shortening the cooking time and improving the cooking effect.

[0082] In this embodiment, the low-temperature steam or fumes inside the cooking cavity 10 are discharged through the exhaust port 101 provided on the cooking cavity 10 and connected to the exhaust hood 21. Furthermore, the exhaust valve plate 22, located between the exhaust port 101 and the exhaust hood 21, automatically adjusts the size of the exhaust gap 220 opening according to changes in steam pressure within the cooking cavity 10. This maintains steam temperature and pressure in steam mode and ensures cavity temperature in grilling mode. Preferably, in this embodiment, the exhaust port 101 is located at the top of the cooking cavity 10; more preferably, it is located on the top wall of the cooking cavity 10 for easy connection to external pipelines.

[0083] The specific structure of the exhaust valve plate 22 in this embodiment will be described in detail below with reference to the accompanying drawings:

[0084] In some embodiments, such as Figures 7 to 9 As shown, the elastic deformation part 221 includes an adjustment piece 2211, which is used to cover or open the vent hole 101; the elastic deformation part 221 also includes a connecting rib 2212, which is connected between the adjustment piece 2211 and the mounting part 222.

[0085] In the above embodiment, the adjusting piece 2211 is an elastic thin sheet. The adjusting piece 2211 covers the outside of the exhaust hole 101 and can deform when the pressure in the cooking cavity 10 reaches a set value to adjust the size of the exhaust gap 220 opening. The connection between the elastic deformation part 221 and the mounting part 222 can be realized through the connecting rib 2212, without affecting the deformation of the adjusting piece 2211.

[0086] Specifically, the connecting rib 2212 is connected to one end of the adjusting piece 2211, or to the middle of the adjusting piece 2211. Preferably, in this embodiment, the connecting rib 2212 is connected to the middle of the adjusting piece 2211, and there are two connecting ribs 2212. The two connecting ribs 2212 are connected to the opposite two sides of the adjusting piece 2211 and the mounting part 222, and the two connecting ribs 2212 are symmetrically arranged. Preferably, in this embodiment, the adjusting piece 2211 is a long strip structure with two long strips. The two connecting ribs 2212 are connected between the two long strips and the mounting part 222, which has high structural stability and is easy to deform.

[0087] Furthermore, in this embodiment, the shape of the adjusting piece 2211 is consistent with the shape of the opening area of ​​the mounting part 222, the size of the adjusting piece 2211 is consistent with the size of the opening area of ​​the mounting part 222, the adjusting piece 2211 and the mounting part 222 are offset by a certain distance in the vertical direction to form an exhaust gap 220, one end of the connecting rib 2212 is connected to the inner ring edge of the mounting part 222, and the other end extends away from the mounting part 222 and connects to the adjusting piece 2211.

[0088] In some embodiments, such as Figure 5 , Figures 7 to 9 As shown, the cooking cavity 10 is provided with an exhaust area, which is strip-shaped and has several exhaust holes 101 spaced apart. The exhaust valve plate 22 is strip-shaped, and at least two elastic deformation parts 221 are sequentially provided in the opening area of ​​the mounting part 222 along the length direction of the exhaust valve plate 22.

[0089] In the above embodiment, by setting the elastic deformation portion 221 as at least two pieces, the smaller elastic deformation portion 221 responds faster to pressure changes inside the cooking cavity 10 compared to a large elastic deformation portion 221.

[0090] Specifically, there are two elastic deformation parts 221, and there is a gap between the two elastic deformation parts 221 so that the two elastic deformation parts 221 will not interfere when they deform, and the gap is relatively small to avoid a lot of steam being discharged directly from the gap.

[0091] In some embodiments, one end of the exhaust hood 21 is snapped onto the cooking cavity 10, and the other end is connected to the outer casing 30 of the cooking device by screws 23.

[0092] In the above embodiment, one end of the exhaust cover 21 is snapped and fixed to the cooking cavity 10, which facilitates the disassembly and assembly of the exhaust cover 21, the cooking cavity 10 and the exhaust valve plate 22. The other end of the exhaust cover 21 is connected to the outer shell 30 of the cooking equipment by screws 23, which can effectively ensure the fixing effect of the exhaust cover 21, thereby ensuring the stability and reliability of the entire exhaust structure 20.

[0093] Specifically, the outer shell 30 includes a U-shaped plate 32 and a rear plate 31. The U-shaped plate 32 is integrally formed. The other end of the exhaust hood 21 is connected to the rear plate 31 by screws 23. The exhaust hood 21 is a hollow shell structure with a rectangular cross-section. The exhaust hood 21 is flat and L-shaped. A bolt post 212 is provided at one end of the exhaust hood 21 near the outer shell 30 of the cooking equipment. Preferably, there are two bolt posts 212, which are provided on opposite sides of the exhaust hood 21. Two connecting holes are provided on the outer shell 30, and the two connecting holes and the two bolt posts 212 are connected by two screws 23.

[0094] In some embodiments, such as Figures 5 to 7 As shown, a buckle 211 is provided on the end of the exhaust hood 21 near the cooking cavity 10; the exhaust valve plate 22 is provided with a clearance hole 2220 through which the buckle 211 can pass; the cooking cavity 10 is provided with a snap-fit ​​structure 103, and the buckle 211 passes through the clearance hole 2220 and snaps into the snap-fit ​​structure 103.

[0095] In the above embodiment, the buckle 211 passes through the clearance hole 2220 on the exhaust valve plate 22 and engages with the snap-fit ​​structure 103 on the cooking cavity 10, which can press the exhaust valve plate 22 tightly onto the cooking cavity 10, thereby achieving effective fixation between the exhaust cover 21, the exhaust valve plate 22, and the cooking cavity 10, and facilitating disassembly and assembly.

[0096] Specifically, clearance holes 2220 are formed on the mounting portion 222 of the exhaust valve plate 22, multiple buckles 211 are spaced apart on the exhaust cover 21, multiple clearance holes 2220 are correspondingly provided on the exhaust valve plate 22, and multiple snap-fit ​​structures 103 are correspondingly provided on the cooking cavity 10. The snap-fit ​​structure 103 can be in the form of a locking platform or a locking groove, etc. Preferably, the snap-fit ​​structure 103 is a locking groove formed on the cooking cavity 10.

[0097] In one example, the exhaust hood 21 is provided with four clips 211, which are distributed at the four corners of the inlet end of the exhaust hood 21. In another example, the exhaust hood 21 is provided with two clips 211, which are located at the inlet end of the exhaust hood 21 and at two corners of the exhaust hood 21 away from the rear plate 31.

[0098] In some embodiments, such as Figure 5 , Figures 7 to 9 As shown, the exhaust valve plate 22 is provided with an annular groove 2221; the annular groove 2221 is provided on the outer periphery of the exhaust valve plate 22 and is located on the side wall near the exhaust cover 21, and the inlet end of the exhaust cover 21 abuts against and is limited in the annular groove 2221.

[0099] In the above embodiment, the annular groove 2221 can form a positioning, so that the exhaust cover 21 and the exhaust valve plate 22 can be quickly connected, improving the assembly efficiency of the exhaust cover 21 and the exhaust valve plate 22, and also improving the stability of the cooperation between the exhaust cover 21 and the exhaust valve plate 22, avoiding relative displacement or movement between the two.

[0100] Specifically, an L-shaped limiting space is formed in the annular groove 2221. The annular groove 2221 includes a limiting bottom wall and a limiting peripheral wall disposed on the outer periphery of the limiting bottom wall. The limiting bottom wall and the limiting peripheral wall enclose the L-shaped limiting space. The inlet end of the exhaust hood 21 abuts against the L-shaped limiting space. The end face of the inlet end of the exhaust hood 21 abuts against the limiting bottom wall, and the outer peripheral face abuts against the limiting peripheral wall.

[0101] In some embodiments, the exhaust port 101 is provided on the top wall of the cooking cavity 10, and the cooking device also includes a rear plate 31 with an air outlet. The exhaust hood 21 is connected between the cooking cavity 10 and the rear plate 31, and the exhaust channel 210 connects the exhaust port 101 and the air outlet.

[0102] In the above embodiments, by setting the exhaust port 101 on the top wall of the cooking cavity 10, it is convenient to connect with the exhaust cover 21. By opening the exhaust port on the rear plate 31, the exhaust port can be hidden, improving the aesthetics.

[0103] In some embodiments, the exhaust valve plate 22 is a rubber plate or a silicone plate.

[0104] In the above embodiments, the exhaust valve plate 22 is made of rubber or silicone, which is not only resistant to high temperature and has excellent sealing performance, but also has high elastic deformation capability. It automatically adjusts its deformation when the gas pressure changes, so as to achieve dynamic sealing and realize dynamic adjustment of the exhaust volume of the exhaust structure 20.

[0105] In some embodiments, the cooking device is a steam oven, a steam oven, a steam-grill combination appliance, or a microwave-steam-grill combination appliance.

[0106] Preferably, in this embodiment, the cooking equipment is a steam oven or a microwave steam oven.

[0107] In this embodiment, the assembly process of the exhaust structure 20 is as follows: one end of the exhaust cover 21 passes through the clearance hole 2220 of the exhaust valve plate 22 through the buckle 211 and is fastened to the cooking cavity 10. At the same time, the four sides of the exhaust cover 21 press the exhaust valve plate 22 onto the cooking cavity 10 to form a circumferential seal. The other end of the exhaust cover 21 is locked to the rear plate 31 of the whole machine by screws 23. After the exhaust cover 21 and the exhaust valve plate 22 are assembled, the gas or steam in the cooking cavity 10 can only pass through the exhaust hole 101 of the cooking cavity 10, pass through the elastic deformation part 221 of the exhaust valve plate 22, and then be discharged from the whole machine through the exhaust channel 210 inside the exhaust cover 21.

[0108] Furthermore, the exhaust valve plate 22 includes a mounting portion 222 and an elastically deformable portion 221 disposed within the mounting portion 222. The elastically deformable portion 221 includes two adjusting plates 2211 arranged sequentially along the length of the exhaust valve plate 22. Each adjusting plate 2211 is connected to the mounting portion 222 on both sides by two connecting ribs 2212. Other parts of the adjusting plate 2211 have an exhaust gap 220 between them and the mounting portion 222. The gas in the cooking cavity 10 cannot leak out from the fit gap between the exhaust valve plate 22 and the cooking cavity 10, or from the fit gap between the exhaust cover 21 and the exhaust valve plate 22. It can only pass through the exhaust gap 220 between the adjusting plate 2211 and the mounting portion 222 and be discharged from the entire machine through the exhaust channel 210 inside the exhaust cover 21.

[0109] In this embodiment, the regulating plate 2211 deforms under steam pressure to control the exhaust volume. The exhaust structure 20 can automatically adjust the opening and closing amount of the regulating plate 2211 according to the steam pressure of the cooking cavity 10, so as to ensure that the cooking equipment can maintain steam temperature and pressure in steam mode and the temperature of the cooking cavity 10 in grilling mode.

[0110] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the protection scope of the embodiments of this application.

Claims

1. A cooking device, characterized in that, include: The cooking cavity (10) is provided with an exhaust vent (101); The exhaust structure (20) includes an exhaust hood (21) and an exhaust valve plate (22), wherein the exhaust hood (21) has an exhaust channel (210) that connects the exhaust hole (101) and the external space; The exhaust hood (21) is detachably connected to the cooking cavity (10) and the exhaust valve plate (22) is pressed against the exhaust port (101); The exhaust valve plate (22) includes an elastic deformation part (221), which can deform under the pressure inside the cooking cavity (10) and can automatically adjust the opening and closing amount as the pressure changes.

2. The cooking apparatus according to claim 1, characterized in that, The exhaust valve plate (22) also includes: The mounting part (222) is annular, and the mounting part (222) is pressed against the outer periphery of the exhaust hole (101) by the exhaust cover (21). The opening area in the middle of the mounting part (222) corresponds to the exhaust hole (101). The elastic deformation part (221) is connected inside the mounting part (222), and the shape and size of the elastic deformation part (221) match the shape and size of the opening area.

3. The cooking apparatus according to claim 2, characterized in that, The elastic deformation part (221) includes: Adjustment piece (2211) is used to cover or open the exhaust port (101); A connecting rib (2212) is connected between the adjusting piece (2211) and the mounting part (222).

4. The cooking apparatus according to claim 2, characterized in that, In the undeformed state, the elastic deformation part (221) has an exhaust gap (220) between itself and the mounting part (222), and the exhaust gap (220) is less than a set value.

5. The cooking apparatus according to claim 2, characterized in that, The cooking cavity (10) is provided with an exhaust area, which is strip-shaped and has several exhaust holes (101) spaced apart. And / or, the exhaust valve plate (22) is a strip structure, and along the length direction of the exhaust valve plate (22), at least two elastic deformation parts (221) are sequentially arranged in the opening area of ​​the mounting part (222).

6. The cooking apparatus according to any one of claims 1 to 5, characterized in that, One end of the exhaust hood (21) is snapped and fixed to the cooking cavity (10), and the other end is connected to the outer shell (30) of the cooking equipment by screws (23).

7. The cooking apparatus according to claim 6, characterized in that, The exhaust hood (21) is provided with a buckle (211) on the end near the cooking cavity (10); The exhaust valve plate (22) is provided with a clearance hole (2220) through which the buckle (211) can pass, and the cooking cavity (10) is provided with a snap-fit ​​structure (103). The buckle (211) passes through the clearance hole (2220) and snaps into the snap-fit ​​structure (103).

8. The cooking apparatus according to any one of claims 1 to 5, characterized in that, The exhaust valve plate (22) is provided with an annular groove (2221); The annular groove (2221) is disposed on the outer periphery of the exhaust valve plate (22) and located on the side wall near the exhaust hood (21). The inlet end of the exhaust hood (21) abuts against and is limited within the annular groove (2221).

9. The cooking apparatus according to any one of claims 1 to 5, characterized in that, The vent (101) is located on the top wall of the cooking cavity (10), and the cooking device further includes: The rear plate (31) is provided with an air outlet. The exhaust hood (21) is connected between the cooking cavity (10) and the rear plate (31). The exhaust channel (210) connects the exhaust hole (101) and the air outlet.

10. The cooking apparatus according to any one of claims 1 to 5, characterized in that, The cooking equipment is a steam oven, steam oven, steam-bake combination machine, or microwave-steam-bake combination machine.

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