Cooking appliance
By designing a water seal channel and a buffer tank pressure relief valve in the cooking appliance, the problems of large heat loss and safety hazards in the existing technology are solved, achieving efficient steaming and cooking effects and a safe cooking process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG SUPOR ELECTRICAL APPLIANCES MFG CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-06-19
AI Technical Summary
Existing cooking appliances suffer from significant heat loss and low cooking efficiency during steaming and boiling. Their sealing structures are complex, costly, and pose safety hazards.
The design employs a water seal channel, which is formed by the gap between the side wall of the top cover and the side wall of the cooking cavity. The water in the cooking cavity forms a water seal, ensuring that micro-pressure is formed at the beginning of cooking, thus improving cooking efficiency. The buffer tank and pressure relief valve prevent the safety hazards of excessive pressure.
It achieves the maintenance of steady gas pressure during cooking, improves cooking efficiency, avoids water overflow and safety hazards, and reduces production costs.
Smart Images
Figure CN224369555U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of household appliances, specifically to a cooking utensil. Background Technology
[0002] Cooking appliances such as steamers (e.g., electric steamers) and steaming baskets use steam to heat food. During the steaming process, water vapor escapes from the gap between the lid and the pot body, resulting in significant heat loss. Furthermore, the cooking cavity is basically at atmospheric pressure, leading to low cooking efficiency.
[0003] In related technologies, it has been proposed to add sealing rings at the joint gaps. However, the flatness requirements of the mating surfaces where the sealing rings are set are high, which makes the processing difficult and costly. Moreover, the addition of sealing rings increases the number of parts, and the sealing rings need to be replaced after a period of use, which makes it inconvenient to use and further increases the cost.
[0004] In related technologies, a concave-convex structure has been proposed to create a water seal between the lid and the pot body, allowing condensation from steam to form a water seal. However, this sealing method has several problems. For example, the water seal requires a certain amount of condensation to form, meaning that a slight pressure only forms inside the cooking cavity after a period of steaming or cooking, resulting in low cooking efficiency. Furthermore, the slight pressure created by this water seal is relatively small, offering limited improvement to the cooking effect, which remains poor. When the pressure inside the cooking cavity is higher than the external pressure, condensation will overflow or even splash from the water seal, affecting not only the cooking effect but also the working environment and posing a risk of burns. Additionally, the pressure inside the cooking cavity can easily lift the lid, preventing a proper seal and creating a safety hazard. Utility Model Content
[0005] This utility model aims to at least partially solve one of the technical problems in the related art.
[0006] Therefore, embodiments of this utility model propose a cooking utensil.
[0007] The cooking appliance of this utility model embodiment includes:
[0008] The body has a cooking cavity and an upper cover for covering and opening the cooking cavity. When the upper cover covers the cooking cavity, the side wall of the upper cover extends into the cooking cavity, and the side wall of the upper cover is spaced apart from the side wall of the cooking cavity to form a water seal channel, which communicates with the cooking cavity inside the side wall of the upper cover.
[0009] In this embodiment of the cooking appliance, the water seal channel communicates with the cooking cavity on the inner side wall of the upper cover, allowing the water in the cooking cavity to form a water seal at the water seal channel. Because the water seal channel is formed between the side wall of the upper cover and the side wall of the cooking cavity, it has a relatively high height, creating a large liquid level difference between the liquid level in the water seal channel and the liquid level on the inner side wall of the upper cover. This allows the cooking cavity to maintain a higher steady-state pressure, thereby improving cooking efficiency and making it difficult for the upper cover to be lifted. Simultaneously, the water seal channel can hold a large amount of water to prevent overflow. Furthermore, since the water in the water seal originates from inside the cooking cavity, a water seal is formed when the upper cover covers the cooking cavity, allowing the cooking cavity to generate micro-pressure at the start of cooking, thus improving cooking efficiency.
[0010] Optionally, when the top cover covers the cooking cavity, the lower end of the side wall of the top cover is adjacent to the bottom wall of the cooking cavity and has a gap H0 between it and the bottom surface of the cooking cavity, and the water seal channel communicates with the cooking cavity inside the side wall of the top cover through the gap H0.
[0011] In this embodiment of the cooking appliance, a gap H0 is formed between the lower end of the side wall of the top cover and the bottom surface of the cooking cavity to connect the water seal channel with the cooking cavity inside the side wall of the top cover, thereby creating a large liquid level difference. Simultaneously, the water seal channel is fully connected to the cooking cavity inside the side wall of the top cover along the circumference of the main body, thus creating a balanced sealing effect along the circumference of the main body.
[0012] Optionally, the height of the gap H0 is less than or equal to 5 mm.
[0013] In this embodiment of the invention, the height of the gap H0 in the cooking appliance is less than or equal to 5 mm, so as to prevent air from entering the gap H0 and causing water seal failure when the liquid level on the inner side wall of the top cover is low.
[0014] Optionally, the height H1 of the water seal channel is greater than the maximum liquid level height H2 within the water seal channel.
[0015] In this embodiment of the invention, the cooking appliance with H1 greater than H2 can prevent the liquid level in the water seal channel from sloshing and overflowing due to power fluctuations or vibrations of the cooking appliance when the cooking cavity has maximum pressure.
[0016] Optionally, 10 mm ≤ H1 - H2 ≤ 30 mm.
[0017] The cooking appliance of this utility model, with a height of 10 mm ≤ H1-H2 ≤ 30 mm, can prevent water from overflowing from the water seal channel. It also avoids the main body being too tall, which would make the cooking appliance inconvenient to use and place, and increase production costs. When H1-H2 < 10 mm, the liquid level in the water seal channel will overflow when there is sloshing. When H1-H2 > 30 mm, the height of the main body and the cooking appliance becomes too tall, making it inconvenient to use and place, and increasing production costs.
[0018] Optionally, a buffer groove is provided on the inner top of the side wall of the main body, the buffer groove is connected to the upper end of the water seal channel, and a flange is provided on the outer periphery of the side wall of the top cover. When the top cover covers the cooking cavity, the flange is supported on the bottom surface of the buffer groove to block the water seal channel.
[0019] In this embodiment of the cooking appliance, when the pressure inside the cooking cavity is too high and the water seal fails, the water in the water seal channel is pressurized and discharged into the buffer tank. The buffer tank intercepts and contains the drainage to prevent the drainage from overflowing from the main body. At the same time, the flange blocks the water seal channel to prevent the discharged water from splashing, thereby preventing the drainage from affecting the operating environment and causing personal injury.
[0020] Optionally, the cooking appliance in this embodiment of the present invention further includes a latch, which is disposed on at least one of the upper cover and the main body, for locking and releasing the upper cover and the main body.
[0021] The cooking appliance of this utility model has a latch that locks the top cover and the main body during cooking to prevent the top cover from being lifted and vibrating when the pressure inside the cooking cavity is too high, thus avoiding safety hazards.
[0022] Optionally, the cooking cavity includes a water storage cavity and a heating cavity, wherein the heating cavity is in communication with the water storage cavity.
[0023] The cooking appliance of this utility model has a heating chamber for heating water for cooking and a water storage chamber for replenishing water to the heating chamber to ensure that there is always water in the heating chamber during cooking.
[0024] Optionally, the heating chamber surrounds the water storage chamber, and the water seal channel communicates with the heating chamber.
[0025] The cooking appliance of this utility model has water in the heating chamber when cooking begins and during cooking. The water seal channel is connected to the heating chamber to ensure that a water seal is always formed when cooking begins and during cooking, so that the cooking chamber forms a micro-pressure when cooking begins, thereby improving cooking efficiency and having a stable gas pressure during cooking to ensure cooking effect.
[0026] Optionally, the heating chamber is connected to the water storage chamber via a water control valve, and the bottom surface of the water storage chamber is higher than the bottom surface of the heating chamber.
[0027] The cooking appliance of this invention controls the liquid level and water volume in the heating chamber via a water control valve, thereby shortening the initial boiling time and improving cooking efficiency. The bottom of the heating chamber is lower than the bottom of the water storage chamber to facilitate water supply from the storage chamber into the heating chamber.
[0028] Optionally, the cooking appliance is a steamer.
[0029] The cooking appliance in this embodiment is a steamer. The water seal allows the cooking chamber to maintain a large steady-state air pressure, thereby achieving a high steaming effect and efficiency, and preventing condensate from overflowing during the steaming process.
[0030] Optionally, the upper cover is provided with a pressure relief valve.
[0031] The cooking appliance of this utility model uses a pressure relief valve to control the pressure in the cooking chamber, thus avoiding potential safety hazards.
[0032] Optionally, when the water seal channel reaches its maximum liquid level, the pressure inside the cooking chamber exceeds the pressure relief threshold of the pressure relief valve.
[0033] In this embodiment of the invention, the pressure relief valve in the cooking cavity releases pressure from the water in the water seal channel before the water reaches the maximum liquid level, thereby preventing excessive pressure in the cooking cavity from causing the water seal to fail. Attached Figure Description
[0034] Figure 1 This is a schematic diagram of a cooking appliance according to an embodiment of the present utility model;
[0035] Figure 2 yes Figure 1 An exploded view of a cooking utensil, with the main body being the first example;
[0036] Figure 3 yes Figure 1 A cross-sectional view of a cooking appliance with its cooking chamber at atmospheric pressure.
[0037] Figure 4 yes Figure 1 A cross-sectional view of a cooking appliance in the cooking chamber during the pressurization process;
[0038] Figure 5 yes Figure 1 A cross-sectional view of a cooking appliance with the cooking chamber under maximum pressure.
[0039] Figure 6 This is a schematic diagram of a second example of the main body of the cooking utensil according to an embodiment of the present utility model;
[0040] Figure 7 This is a schematic diagram of a third example of the main body of the cooking appliance according to an embodiment of the present utility model.
[0041] Figure label:
[0042] 1. Main body; 11. Cooking cavity; 111. Water seal channel; 112. Water storage cavity; 113. Heating cavity; 12. Buffer tank; 13. Rib; 14. Connecting channel; 141. Opening; 2. Top cover; 21. Flange; 22. Snap-fit seat; 3. Lock; 4. Water control valve; 5. Pressure relief valve; 6. Steam rack; 61. Steam hole; 7. Heating element. Detailed Implementation
[0043] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.
[0044] The following is for reference. Figures 1-7 This invention describes a cooking appliance according to an embodiment of the present invention.
[0045] like Figures 1-7 As shown, the cooking appliance of this utility model embodiment includes a main body 1 having a cooking cavity 11 and an upper cover 2 for covering and opening the cooking cavity 11.
[0046] When the upper cover 2 covers the cooking cavity 11, the side wall of the upper cover 2 extends into the cooking cavity 11, and the side wall of the upper cover 2 is spaced apart from the side wall of the cooking cavity 11 to form a water seal channel 111, which is connected to the cooking cavity 11 inside the side wall of the upper cover 2.
[0047] Specifically, such as Figures 1-3 As shown, the main body 1 is preferably, but not limited to, a pot body, a stew body, etc. The main body 1 is provided with a cooking cavity 11, which preferably, but not limited to, has an opening 141 formed at the top of the main body 1. The upper cover 2 is used to cover and open the cooking cavity 11. When the upper cover 2 covers the cooking cavity 11, the side wall of the upper cover 2 extends into the cooking cavity 11, and the side wall of the upper cover 2 is spaced apart from the side wall of the cooking cavity 11 to form a water seal channel 111. In other words, the side wall of the upper cover 2 extends into the cooking cavity 11 and divides the cooking cavity 11 into two parts. One part of the cooking cavity 11 is located between the side wall of the upper cover 2 and the side wall of the cooking cavity 11 to form the water seal channel 111, and the other part of the cooking cavity 11 is located inside the side wall of the upper cover 2. The water seal channel 111 communicates with the cooking cavity 11 inside the side wall of the upper cover 2. In other words, the part of the cooking cavity 11 forming the water seal channel 111 communicates with the other part of the cooking cavity 11 inside the side wall of the upper cover 2.
[0048] When using the cooking appliance, first pour water into the cooking chamber 11, then cover the cooking chamber 11 with the top cover 2. At this time, the cooking chamber 11 is under normal pressure, and water is present in both the water seal channel 111 and the inner side wall of the top cover 2, forming a water seal. The liquid level in the water seal channel 111 is the same as the liquid level on the inner side wall of the top cover 2, both being H3. Figure 3 As shown.
[0049] After cooking begins, a water seal is formed between the top cover 2 and the main body 1. Therefore, the pressure inside the cooking chamber 11 increases and forms a slight pressure at the start of cooking, improving cooking efficiency. Under the pressure inside the cooking chamber 11, water on the inner side wall of the top cover 2 flows into the water seal channel 111, causing the liquid level in the water seal channel 111 to rise above H3. The liquid level on the inner side wall of the top cover 2 is less than or equal to H3, thus creating a liquid level difference between the liquid level in the water seal channel 111 and the liquid level on the inner side wall of the top cover 2. Figure 4 As shown.
[0050] Since the water seal channel 111 is formed between the side wall of the upper cover 2 and the side wall of the cooking cavity 11 and has a relatively high height, a large liquid level difference can be formed between the liquid surface in the water seal channel 111 and the liquid surface on the inner side of the side wall of the upper cover 2, so that the water forming the water seal can withstand a large pressure, thereby enabling the cooking cavity 11 to maintain a large steady-state air pressure and improve the cooking effect.
[0051] In this embodiment of the cooking appliance, the water seal channel 111 communicates with the cooking cavity 11 on the inner side wall of the upper cover 2, so that the water in the cooking cavity 11 forms a water seal at the water seal channel 111. Since the water seal channel 111 is formed between the side wall of the upper cover 2 and the side wall of the cooking cavity 11, the water seal channel 111 has a relatively high height, allowing a large liquid level difference to be formed between the liquid surface in the water seal channel 111 and the liquid surface on the inner side wall of the upper cover 2. This enables the cooking cavity 11 to maintain a large steady-state pressure, thereby improving the cooking effect and making it difficult for the upper cover 2 to be lifted. Simultaneously, the water seal channel 111 can hold a large amount of water to prevent overflow. Furthermore, since the water in the water seal originates from inside the cooking cavity 11, a water seal can be formed when the upper cover 2 covers the cooking cavity 11, allowing the cooking cavity 11 to form a slight pressure at the start of cooking, thus improving cooking efficiency.
[0052] Optionally, when the upper cover 2 covers the cooking cavity 11, the lower end of the side wall of the upper cover 2 is adjacent to the bottom wall of the cooking cavity 11 and has a gap H0 between it and the bottom surface of the cooking cavity 11. The water seal channel 111 communicates with the cooking cavity 11 inside the side wall of the upper cover 2 through the gap H0.
[0053] like Figure 3As shown, when the upper cover 2 covers the cooking cavity 11, the lower end of the side wall of the upper cover 2 is adjacent to the bottom wall of the cooking cavity 11 and has a gap H0 between it and the bottom surface of the cooking cavity 11. The water seal channel 111 communicates with the cooking cavity 11 inside the side wall of the upper cover 2 through the gap H0. In other words, the gap H0 connects the bottom end of the water seal channel 111 with the bottom end of the cooking cavity 11 inside the side wall of the upper cover 2. This allows water inside the side wall of the upper cover 2 to enter the water seal channel 111 through the gap H0, thereby creating a liquid level difference. At the same time, the water seal channel 111 is completely connected to the cooking cavity 11 inside the side wall of the upper cover 2 along the circumference of the main body 1, thereby forming a balanced sealing effect along the circumference of the main body 1.
[0054] It is understood that the water seal channel 111 and the cooking cavity 11 on the inner side wall of the upper cover 2 are not limited to being connected through the gap H0. In some other embodiments, the bottom end of the side wall of the upper cover 2 is provided with a connecting hole. The connecting holes are arranged in a plurality of spaces along the circumference of the side wall of the upper cover 2. The bottom end of the water seal channel 111 and the bottom end of the cooking cavity 11 on the inner side wall of the upper cover 2 are connected through the plurality of connecting holes.
[0055] Optionally, the height of the gap H0 is less than or equal to 5 mm to prevent air from entering the gap H0 and causing water seal failure when the liquid level on the inner side wall of the upper cover 2 is low. On the one hand, when less water is poured into the cooking chamber 11 before cooking, resulting in a low liquid level in the cooking chamber 11, it can ensure that the bottom end of the side wall of the upper cover 2 is below the liquid level in the cooking chamber 11 after the upper cover 2 is closed. On the other hand, when the liquid level on the inner side wall of the upper cover 2 drops due to evaporation during cooking, it can ensure that the bottom end of the side wall of the upper cover 2 is below the liquid level on the inner side wall of the upper cover 2.
[0056] Preferably, 1 mm ≤ H0 ≤ 5 mm, such as 5 mm, 3 mm, 1 mm, etc. When H0 is greater than 5 mm, there is a risk of water seal failure. When H0 is less than 1 mm, the processing precision requirements of the main body 1 and the upper cover 2 are high, which is not convenient for processing. At the same time, the gap H0 is easily blocked by foreign objects in the water.
[0057] Optionally, the height H1 of the water seal channel 111 is greater than the maximum liquid level height H2 within the water seal channel 111.
[0058] like Figure 5 As shown, during the cooking process, the water inside the side wall of the top cover 2 flows into the water seal channel 111 under the pressure inside the cooking chamber 11, causing the liquid level in the water seal channel 111 to rise. When the pressure inside the cooking chamber 11 reaches the maximum pressure under the rated power, the liquid level in the water seal channel 111 rises to the maximum liquid level height H2.
[0059] The height H1 of the water seal channel 111 is greater than the maximum liquid level height H2 inside the water seal channel 111. This prevents the liquid level inside the water seal channel 111 from swaying and overflowing due to power fluctuations or vibrations of the cooking appliance when the cooking cavity 11 has maximum pressure.
[0060] Optionally, 10 mm ≤ H1-H2 ≤ 30 mm. H1-H2 can be 10 mm, 20 mm, 30 mm, etc.
[0061] This prevents water in the water seal channel 111 from overflowing due to surface sloshing, and also avoids the main body 1 from being too tall, which would make the cooking appliance inconvenient to use and place, and increase production costs. When H1-H2 is 10 mm, the height of the cooking appliance can be minimized to the greatest extent, and when H1-H2 is 30 mm, it can ensure that water in the water seal channel 111 will not overflow due to sloshing.
[0062] When H1-H2 < 10 mm, the liquid level in the water seal channel 111 will overflow when there is shaking. When H1-H2 > 30 mm, the height of the main body 1 and the cooking utensils is too high, making them inconvenient to use and place, and increasing production costs.
[0063] Optionally, a buffer groove 12 is provided on the inner side of the top of the side wall of the main body 1. The buffer groove 12 is connected to the upper end of the water seal channel 111. A flange 21 is provided on the outer periphery of the side wall of the upper cover 2. When the upper cover 2 covers the cooking cavity 11, the flange 21 is supported on the bottom surface of the buffer groove 12 to block the water seal channel 111.
[0064] like Figures 1-3 As shown, a buffer groove 12 is provided at the top of the side wall of the main body 1. The buffer groove 12 is located on the inner side of the side wall of the main body 1 and is connected to the upper end of the water seal channel 111. The buffer groove 12 is preferably, but not limited to, annular in the vertical direction.
[0065] The outer periphery of the side wall of the top cover 2 is provided with a flange 21. The width of the flange 21 is greater than the width of the water seal channel 111 and less than the width of the buffer slot 12. The flange 21 is preferably, but not limited to, annular around the vertical direction.
[0066] When the upper cover 2 covers the cooking cavity 11, the flange 21 is supported on the bottom surface of the buffer tank 12 to block the water seal channel 111. In other words, the bottom surface of the flange 21 abuts against the bottom surface of the buffer tank 12, and the flange 21 and the water seal channel 111 are arranged opposite each other in the vertical direction.
[0067] When excessive pressure within the cooking chamber 11 causes the water seal to fail—in other words, when the pressure within the cooking chamber 11 exceeds the maximum pressure determined by the rated power—the water seal between the top cover 2 and the main body 1 fails. Water in the water seal channel 111 is discharged into the buffer tank 12 under the pressure of the cooking chamber 11. The buffer tank 12 intercepts and accommodates the drainage to prevent it from overflowing from the main body 1. Simultaneously, the flange 21 blocks the water seal channel 111 to prevent the discharged water from splashing, thereby preventing drainage from affecting the operating environment and causing personal injury.
[0068] Preferably, after the flange 21 is supported in the buffer tank 12, the water volume of the buffer tank 12 is greater than or equal to the volume of the water seal channel 111, so that the buffer tank 12 can accommodate the water volume when the water seal channel 111 is filled with water after the flange 21 is set. Thus, when the pressure in the cooking cavity 11 is too high and the water seal fails, the buffer tank 12 can fully accommodate the drainage of the water seal channel 111, avoiding water overflowing from the buffer tank 12 and affecting the operating environment and causing personal injury.
[0069] It is understood that in some other embodiments, a drain outlet may also be provided in the buffer tank 12, which is used to connect a drain pipe to drain the water in the buffer tank 12.
[0070] Optionally, the cooking appliance in this embodiment of the present invention further includes a latch 3, which is disposed on at least one of the upper cover 2 and the main body 1, for locking and releasing the upper cover 2 and the main body 1.
[0071] like Figures 1-3 As shown, the main body 1 has latches 3 at both ends along the horizontal direction, and the upper cover 2 has fastening seats 22 at both ends along the horizontal direction. The fastening seats 22 are preferably, but not limited to, located on the flange 21. The latches 3 and fastening seats 22 are correspondingly arranged and can be fastened and separated. Specifically, the latches 3 can be pivotally connected to the main body 1 for fastening and separation, or they can be slidably connected to the main body 1 for fastening and separation. The horizontal direction refers to the horizontal direction when the cooking utensil is placed.
[0072] It is understandable that the latch 3 can also be located on the upper cover 2, and the main body 1 is provided with a fastening seat 22.
[0073] When the upper cover 2 covers the cooking cavity 11, the latch 3 engages with the fastening seat 22 to lock the upper cover 2 and the main body 1, and then cooking is carried out. After cooking is completed, the latch 3 is first separated from the fastening seat 22, and then the upper cover 2 is used to open the cooking cavity 11.
[0074] The latch 3 locks the top cover 2 and the main body 1 during cooking to prevent the top cover 2 from being lifted and vibrating when the pressure inside the cooking cavity 11 is too high, thus avoiding safety hazards.
[0075] It is understood that the upper cover 2 and the body 1 are not limited to being connected by the latch 3. In other embodiments, the upper cover 2 and the body 1 are threaded together, for example, the flange 21 is threaded together with the side wall of the buffer slot 12.
[0076] Optionally, the cooking cavity 11 includes a water storage cavity 112 and a heating cavity 113, with the heating cavity 113 communicating with the water storage cavity 112.
[0077] like Figure 2 , Figure 3 and Figure 6 As shown, the bottom surface of the cooking cavity 11 is provided with a partition 13 to divide the cooking cavity 11 into a water storage cavity 112 and a heating cavity 113. The water storage cavity 112 and the heating cavity 113 are preferably, but not limited to, formed in the lower part of the cooking cavity 11. Both the water storage cavity 112 and the heating cavity 113 are used to hold water. The heating cavity 113 is preferably, but not limited to, provided with a heating element 7 on its bottom surface to heat the water in the heating cavity 113 for cooking. The water storage cavity 112 is connected to the heating cavity 113 to replenish water to the heating cavity 113, thereby ensuring that the heating cavity 113 always has water during cooking.
[0078] It is understandable that, in cases like Figure 7 In the illustrated embodiment, the cooking cavity 11 is not provided with a partition 13 to separate it into a water storage cavity 112 and a heating cavity 113. The bottom surface of the cooking cavity 11 is preferably, but not limited to, provided with a heating element 7 to heat the water in the cooking cavity 11. This makes the structure of the main body 1 simple, easy to process and manufacture, and has a lower manufacturing cost.
[0079] Optionally, the heating chamber 113 surrounds the water storage chamber 112, and the water seal channel 111 communicates with the heating chamber 113.
[0080] like Figure 2 , Figure 3 and Figure 6 As shown, the partition 13 is configured as a ring around the vertical direction, specifically a circular ring, an elliptical ring, a rectangular ring, a rounded rectangular ring, an irregular ring, etc. The partition 13 surrounds the water storage cavity 112, and the heating cavity 113 surrounds the partition 13. In other words, the inner side of the partition 13 is the water storage cavity 112, and the outer side of the partition 13 is the heating cavity 113, so that the heating cavity 113 surrounds the water storage cavity 112.
[0081] The water seal channel 111 is connected to the heating chamber 113. Preferably, the water seal channel 111 is connected to the heating chamber 113 through the gap H0.
[0082] Since the heating chamber 113 is used to heat water for cooking, there is water in the heating chamber 113 when cooking begins and during cooking. The water seal channel 111 is connected to the heating chamber 113 to ensure that a water seal is always formed when cooking begins and during cooking, so that the cooking chamber 11 forms a micro-pressure when cooking begins, thereby improving cooking efficiency and having a steady gas pressure during cooking to ensure cooking effect.
[0083] Optionally, the heating chamber 113 is connected to the water storage chamber 112 via the water control valve 4, and the bottom surface of the water storage chamber 112 is higher than the bottom surface of the heating chamber 113.
[0084] like Figure 2 and Figure 3 As shown, the main body 1 has a connecting channel 14, which is located between the heating chamber 113 and the water storage chamber 112, connecting the two chambers. A water control valve 4 is located in the connecting channel 14 to control the flow of water from the water storage chamber 112 to the heating chamber 113. Thus, the water control valve 4 controls the liquid level and water volume in the heating chamber 113, shortening the initial boiling time during cooking, improving cooking efficiency, and ensuring that the liquid level in the heating chamber 113 does not cause the water seal to fail.
[0085] The water control valve 4 is preferably, but not limited to, a float type.
[0086] The bottom surface of the heating chamber 113 is lower than the bottom surface of the water storage chamber 112, which facilitates the supply of water from the water storage chamber 112 into the heating chamber 113.
[0087] Furthermore, the connecting channel 14 forms an opening 141 on the outer peripheral surface of the partition 13 to connect the heating cavity 113. The heating cavity 113 preferably, but not limited to, has a heating element 7 provided at the bottom of the cavity.
[0088] Opening 141 can be positioned adjacent to and opposite to heating element 7, such as Figure 2 As shown, when the water storage chamber 112 replenishes water to the heating chamber 113, the replenished water enters the heating chamber 113 through the opening 141 and comes into contact with the heating element 7 at the first moment, and is quickly heated to the boiling point, so that the air pressure and temperature fluctuations in the cooking chamber 11 are small, which is beneficial to the sealing effect of the water seal and the cooking effect.
[0089] Opening 141 can also be positioned away from and staggered from heating element 7, such as... Figure 6 As shown, relative to the opening 141 being adjacent to and opposite to the heating element 7, the opening 141 being far away from and staggered with the heating element 7 makes the water flow path between the water control valve 4 and the heating chamber 113 longer, thereby reducing the fluctuations caused by boiling in the heating chamber 113 to the water control valve 4, especially reducing the fluctuations to the float-type water control valve 4, so as to make water replenishment smoother.
[0090] Alternatively, the cooking appliance is a steamer.
[0091] like Figure 2 and Figure 3 As shown, the cooking appliance in this embodiment of the utility model also includes a steam rack 6. The steam rack 6 is detachably disposed in the lower part of the cooking cavity 11, preferably but not limited to being placed on the partition 13. The steam rack 6 is provided with steam holes 61 that are disposed opposite to and communicate with the heating cavity 113, thereby realizing the cooking method of steaming and boiling.
[0092] The cooking appliance in this embodiment of the utility model is a steamer. The cooking chamber 11 can maintain a large steady gas pressure through water sealing, thereby having a high steaming effect and steaming efficiency, and can prevent condensate from overflowing during the steaming process.
[0093] It should be noted that the energy source for the steamer can be electricity or natural gas, etc. When the energy source for the steamer is electricity, a heating element 7 can be installed in the main body 1 to heat the water in the heating chamber 113, or the steamer can be installed in an electromagnetic device to heat the water in the heating chamber 113.
[0094] It is understood that the cooking appliance is not limited to a steamer; in other embodiments, the cooking appliance is a rice cooker with steaming and cooking functions.
[0095] Optionally, the upper cover 2 is provided with a pressure relief valve 5.
[0096] like Figure 1 and Figure 2 As shown, the upper cover 2 is equipped with a pressure relief valve 5. During the cooking process, the pressure of the cooking chamber 11 is controlled by the pressure relief valve 5 to avoid excessive pressure in the cooking chamber 11 and potential safety hazards.
[0097] Optionally, when the water seal channel 111 reaches its maximum liquid level, the pressure inside the cooking chamber 11 exceeds the pressure relief threshold of the pressure relief valve 5.
[0098] like Figure 5 As shown, when the pressure inside the cooking chamber 11 reaches the maximum pressure under rated power, the liquid level in the water seal channel 111 rises to the maximum liquid level height H2. At this time, the pressure inside the cooking chamber 11 is greater than the pressure relief threshold of the pressure relief valve 5. In other words, the maximum sealing pressure of the water seal is greater than the pressure relief threshold of the pressure relief valve 5.
[0099] Therefore, during use, the pressure relief valve 5 in the cooking chamber 11 causes the water in the water seal channel 111 to release pressure in the cooking chamber 11 before reaching the maximum liquid level H2, so as to avoid the water seal failing due to excessive pressure in the cooking chamber 11.
[0100] In the description of this utility model, it should be understood that the terms "length", "width", "thickness", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential", 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 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.
[0101] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0102] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" 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.
[0103] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. 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 any suitable manner in 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.
[0104] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.
Claims
1. A cooking utensil, characterized in that, The device includes a main body (1) having a cooking cavity (11) and an upper cover (2) for covering and opening the cooking cavity (11). When the upper cover (2) covers the cooking cavity (11), the side wall of the upper cover (2) extends into the cooking cavity (11), and the side wall of the upper cover (2) is spaced apart from the side wall of the cooking cavity (11) to form a water seal channel (111). The water seal channel (111) communicates with the cooking cavity (11) inside the side wall of the upper cover (2).
2. The cooking utensil according to claim 1, characterized in that, When the upper cover (2) covers the cooking cavity (11), the lower end of the side wall of the upper cover (2) is adjacent to the bottom wall of the cooking cavity (11) and there is a gap H0 between the upper cover (2) and the bottom surface of the cooking cavity (11). The water seal channel (111) communicates with the cooking cavity (11) inside the side wall of the upper cover (2) through the gap H0.
3. The cooking utensil according to claim 2, characterized in that, The height of the gap H0 is less than or equal to 5 mm.
4. The cooking utensil according to claim 1, characterized in that, The height H1 of the water seal channel (111) is greater than the maximum liquid level height H2 within the water seal channel (111).
5. The cooking utensil according to claim 4, characterized in that, 10 mm ≤ H1 - H2 ≤ 30 mm.
6. The cooking utensil according to claim 1, characterized in that, The main body (1) has a buffer groove (12) on the inner side of the top of its side wall. The buffer groove (12) is connected to the upper end of the water seal channel (111). The outer periphery of the side wall of the upper cover (2) has a flange (21). When the upper cover (2) covers the cooking cavity (11), the flange (21) is supported on the bottom surface of the buffer groove (12) to block the water seal channel (111).
7. The cooking utensil according to claim 1, characterized in that, It also includes a latch (3) provided on at least one of the upper cover (2) and the body (1) for locking and releasing the upper cover (2) and the body (1).
8. The cooking utensil according to claim 1, characterized in that, The cooking cavity (11) includes a water storage cavity (112) and a heating cavity (113), and the heating cavity (113) is connected to the water storage cavity (112).
9. The cooking utensil according to claim 8, characterized in that, The heating chamber (113) surrounds the water storage chamber (112), and the water seal channel (111) communicates with the heating chamber (113).
10. The cooking utensil according to claim 8, characterized in that, The heating chamber (113) is connected to the water storage chamber (112) through a water control valve (4), and the bottom surface of the water storage chamber (112) is higher than the bottom surface of the heating chamber (113).
11. The cooking utensil according to claim 1, characterized in that, The cooking appliance is a steamer.
12. The cooking utensil according to any one of claims 1-11, characterized in that, The upper cover (2) is equipped with a pressure relief valve (5).
13. The cooking utensil according to claim 12, characterized in that, When the water seal channel (111) reaches its maximum liquid level, the pressure inside the cooking chamber (11) exceeds the pressure relief threshold of the pressure relief valve (5).