Pressure steam box
By using a humidity sensor and a float control device, combined with the use of an electromagnet or motor and a pressure plate, the float state is dynamically controlled, solving the problem that pressure steam ovens cannot bake food, and achieving dynamic regulation of water vapor and uniform baking of food.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO FOTILE KITCHEN WARE CO LTD
- Filing Date
- 2025-04-07
- Publication Date
- 2026-05-08
AI Technical Summary
Existing pressure steam ovens cannot control the floating state of the float, which makes it impossible to bake food and makes it difficult to quickly remove water vapor during the baking process.
The float is dynamically controlled up and down by a humidity sensor and a float control device. Combined with the use of electromagnets and elastic elements or motors and pressure plates, the float's state changes to adjust the water vapor content and achieve the baking function.
It achieves dynamic control of water vapor during the baking process in the pressure steam oven, ensuring uniform baking and rapid browning of food, and reducing the space occupied by kitchen utensils.
Smart Images
Figure CN224206600U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of kitchen appliances, and in particular to a pressure steamer. Background Technology
[0002] Existing pressure steamers are mainly used for low-pressure steaming and cooking, and cannot be used for baking. This results in users having too many cooking utensils and taking up kitchen space. Furthermore, while existing pressure steamers create high pressure through the opening and closing of a float for steaming, the baking process requires rapid release of steam generated in the early stages, which is difficult for traditional pressure steamers to achieve. To achieve the baking function not found in traditional pressure steamers / pressure cookers, the floating state of the pressure steamer is controlled to dynamically regulate the steam content during the baking process, thereby enabling the pressure steamer to bake food while ensuring even baking. Summary of the Invention
[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of existing pressure steamers in that they cannot control the floating state of the float in order to control the internal water vapor content and achieve the purpose of baking food, and to provide a pressure steamer.
[0004] The present invention solves the above-mentioned technical problems through the following technical solution:
[0005] A pressure steamer is provided, comprising an inner liner and a float disposed on the inner liner for venting. The float communicates with and closes the inner liner from the outside by floating up and down relative to the inner liner. The pressure steamer includes a humidity sensor and a float control device. A portion of the humidity sensor extends into the interior of the inner liner. The float control device applies a downward force to the float, and the magnitude of the force is changed by internal magnetic force changes or partial shape changes. The pressure steamer also includes a control unit electrically connected to the humidity sensor and the float control device.
[0006] In this design, the float can float up and down relative to the inner liner, exhibiting both rising and falling states. When rising, the inner liner is sealed, maintaining a high temperature and pressure environment inside for rapid browning of food. When falling, the inner liner releases air normally, allowing the food to bake. A humidity sensor detects changes in humidity inside the inner liner. The float control device applies a downward force to the float, causing it to fall. The float control sensor can also adjust the magnitude of this force to change the float's state. Through an electrical connection between the control unit and the humidity sensor and float control device, the float control device can adjust the float's rising or falling based on the humidity level of the pressure steamer, thus enabling different functions of the pressure steamer.
[0007] Preferably, the pressure steamer is provided with a float hole, which is a through hole at the top of the inner liner. The float includes a float rod and a float head. The float head is connected to one end of the float rod. The float rod extends into the float hole, and the float head is located inside the inner liner. The diameter of the float rod is smaller than the diameter of the float hole, and the diameter of the float head is larger than the diameter of the float hole.
[0008] In this design, the float is installed in the float hole of the inner liner. The float rod extends into the float hole and is connected at one end to the float head and at the other end to the float control device. The diameter of the float rod is smaller than that of the float hole, allowing the float to float or fall freely. When the float falls, the pressure steamer can exhaust gas normally. The float head is located inside the inner liner and has a diameter larger than that of the float hole. When the float rises, the float head can block the entire float hole, sealing the inner liner and achieving a high temperature and high pressure state inside the inner liner.
[0009] Preferably, the float control device includes an electromagnet and an elastic element, the elastic element being disposed on the top surface of the float and exerting pressure on the float; the electromagnet is disposed above the float, and the control unit is electrically connected to the electromagnet and changes the magnitude of the force exerted by the float control device on the float by switching the electromagnet on and off.
[0010] In this scheme, an electromagnet and an elastic element are set as the float control device. The elastic element is set on the top surface of the float and applies downward pressure to the float, so that the float is in a falling state. The electromagnet is set above the float and generates an upward magnetic attraction force on the float when energized, so that the float is in a floating state. The electromagnet is electrically connected to the control unit, and the on and off of the electromagnet is controlled to change the state of the float.
[0011] Preferably, the pressure steamer includes a fixed surface located above the float, the electromagnet is fixed to the fixed surface, and the two ends of the elastic element are respectively connected to the electromagnet and the float.
[0012] In this design, a fixed surface exists inside the pressure steamer. An electromagnet can be connected to this fixed surface and positioned above the float. When the electromagnet is energized, it provides an upward force to the float. An elastic element is positioned between the electromagnet and the float. It applies pressure to the float by abutting against the electromagnet, and when the electromagnet is de-energized, the elastic element quickly rebounds, causing the float to fall.
[0013] Preferably, the pressure exerted by the elastic element on the float is greater than the pressure value inside the pressure steamer that causes the float to float when the pressure steamer is working.
[0014] In this design, the elastic element is used to press the float. When the pressure steamer is not in the baking state, there is no need to make the float float up for sealing. The float needs to always be in a state where it is pressed down and cannot float up. The pressure applied to the float by the elastic element needs to be greater than the pressure value of the pressure steamer that makes the float float up.
[0015] Preferably, the elastic element is a spring, and a connector is provided at the top of the float. The diameter of the connector is larger than the diameter of the float. The spring is connected to the float through the connector, and the diameter of the connector is larger than the diameter of the spring.
[0016] In this design, a spring is selected as the elastic element. This component is simple, inexpensive, and easy to replace if damaged. A connector is installed at the top of the float to ensure a proper connection between the float and the spring. The diameter of the connector is larger than the diameters of the float and the spring, ensuring that the float receives even downward pressure from the spring. This allows the float to rise and fall normally, preventing uneven force that could damage it.
[0017] Preferably, the float control device includes a motor and a pressure plate. The motor is located at the top of the inner liner, and a motor shaft is provided on the side of the motor. The pressure plate is connected to the motor shaft, and the control device controls the rotation of the motor shaft to achieve the shape change of the pressure plate.
[0018] In this design, the float is controlled by a motor and a pressure plate installed at the top of the inner tank. The pressure plate rotates via a motor shaft connected to the side of the motor. The motor is energized to control the rotation, changing the shape of the pressure plate to generate different forces on the float and control the float to rise or fall.
[0019] Preferably, a baffle is provided on the top of the float, the diameter of the baffle being larger than the diameter of the float, and the pressure plate is provided above the baffle.
[0020] In this design, a baffle is provided to allow the pressure plate to press down on the float. The diameter of the baffle is larger than that of the float so that the float will not fall off when the pressure steamer is not in use, making it easy to remove and clean. The large diameter of the baffle also makes it easier for the pressure plate and the baffle to work together to control the float.
[0021] Preferably, the pressure plate is fixed to the motor shaft and rotates with the rotation of the motor shaft. When the pressure plate is perpendicular to the top surface of the float, the pressure plate presses down on the baffle. When the pressure plate is parallel to the top surface of the float, the pressure plate does not contact the baffle.
[0022] In this scheme, the motor controls the rotation of the motor shaft, causing the pressure plate to flip. When the pressure plate is in a vertical state, it presses down on the baffle on the float, causing the float to fall and the pressure steamer to exhaust normally. When the pressure plate is in a parallel state, the pressure plate does not contact the float and the baffle, the float rises, and the pressure steamer is in a high temperature and high pressure state.
[0023] Preferably, the top of the float is provided with a baffle and a connector, the connector is located above the baffle and is an integral part, the diameter of the connector is larger than the diameter of the float, the spring is connected to the float through the connector, and the diameter of the connector is larger than the diameter of the spring; the diameter of the baffle is larger than the diameter of the float, and the pressure plate is located above the baffle and below the connector.
[0024] In this design, a connector is installed at the top of the float to fully connect the float and the spring. The diameter of the connector is larger than the diameters of the float and the spring, ensuring that the float receives even downward pressure from the spring, allowing it to rise and fall normally and preventing damage due to uneven force. Simultaneously, a baffle is provided to allow the pressure plate to press down on the float. The diameter of the baffle is larger than the float's diameter to prevent the float from falling out when the pressure steamer is not in use, facilitating removal and cleaning. The larger diameter of the baffle also facilitates better cooperation between the pressure plate and the baffle for float control. The connector and baffle are designed as a single unit, allowing for the use of two different float control devices simultaneously, eliminating the need for separate designs.
[0025] The significant advantages of this invention are as follows: the float can float up and down relative to the inner liner, exhibiting both floating and falling states. When floating, the inner liner is sealed, maintaining a high temperature and pressure environment inside, allowing for rapid browning of the food. When falling, the inner liner releases air normally, allowing the food to bake. A humidity sensor detects changes in humidity inside the inner liner. The float control device applies a downward force to the float, causing it to fall. Simultaneously, the float control sensor can adjust the magnitude of this force to change the float's state. Through electrical connection between the control unit and the humidity sensor and float control device, the float control device can control the float's movement according to the humidity level of the pressure steamer, enabling different functions of the pressure steamer. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the internal structure of the pressure steamer in Embodiment 1 of this utility model;
[0027] Figure 2 for Figure 1 Enlarged structural diagram at point A;
[0028] Figure 3 This is a cross-sectional view of the float and float hole in the inner liner of Embodiment 1 of this utility model;
[0029] Figure 4 This is a schematic diagram of the internal structure of the pressure steamer in Embodiment 2 of this utility model, wherein the pressure plate is in a horizontal state;
[0030] Figure 5 for Figure 4 Enlarged structural diagram at point B;
[0031] Figure 6 This is a schematic diagram of the internal structure of the pressure steamer in Embodiment 2 of this utility model, wherein the pressure plate is in a vertical state;
[0032] Figure 7 for Figure 6 A magnified structural diagram at point C.
[0033] Explanation of reference numerals in the attached figures:
[0034] Inner liner 1
[0035] Humidity sensor 2
[0036] Float 3
[0037] Float rod 31
[0038] Float head 32
[0039] Float hole 33
[0040] Connector 34
[0041] baffle 35
[0042] Float control device 4
[0043] Electromagnet 41
[0044] Spring 42
[0045] Motor 43
[0046] Motor shaft 431
[0047] Pressure plate 44
[0048] Fixed surface 5 Detailed Implementation
[0049] The present invention will be described more clearly and completely below with reference to the accompanying drawings, using a preferred embodiment.
[0050] Example 1
[0051] In this embodiment, a pressure steamer is provided, such as Figures 1-3As shown, the pressure steamer includes an inner liner 1 and a float 3 mounted on the inner liner 1 for venting. The float 3 achieves communication and closure between the inner liner 1 and the outside world by floating up and down relative to the inner liner 1. The pressure steamer includes a humidity sensor 2 and a float control device 4. A portion of the humidity sensor 2 extends into the interior of the inner liner 1. The float control device 4 applies a downward force to the float 3, and the magnitude of the force is changed by internal magnetic force changes or partial shape changes. The pressure steamer also includes a control unit, which is electrically connected to the humidity sensor 2 and the float control device 4.
[0052] The float 3 can float up and down relative to the inner liner 1, with two states: floating and falling. When floating, the inner liner 1 is sealed, creating a high-temperature, high-pressure environment inside, allowing food to brown quickly. When falling, the inner liner 1 releases air normally, allowing the food to bake. The humidity sensor 2 detects changes in humidity inside the inner liner 1. The float control device 4 applies a downward force to the float 3, causing it to fall. Simultaneously, the float control sensor can adjust the magnitude of this force to change the float 3's state. Through the control unit's electrical connection to the humidity sensor 2 and the float control device 4, the float control device 4 can control the float 3 to rise or fall based on the humidity level of the pressure steamer, thus achieving different functions of the pressure steamer.
[0053] The pressure steamer is equipped with a float hole 33, which is a through hole at the top of the inner liner 1. The float 3 includes a float rod 31 and a float head 32. The float head 32 is connected to one end of the float rod 31. The float rod 31 extends into the float hole 33, and the float head 32 is located inside the inner liner 1. The diameter of the float rod 31 is smaller than the diameter of the float hole 33, and the diameter of the float head 32 is larger than the diameter of the float hole 33. A float 3 is disposed in the float hole 33 of the inner liner 1. The float rod 31 extends into the float hole 33 and is connected at one end to the float head 32, and at the other end to the float control device 4. The diameter of the float rod 31 is smaller than that of the float hole 33, allowing the float 3 to float or fall freely. When the float 3 falls, the pressure steamer can exhaust gas normally. The float head 32 is located inside the inner liner 1 and has a diameter larger than that of the float hole 33. When the float 3 floats, the float head 32 can abut against the entire float hole 33, sealing the inner liner 1 and achieving a high temperature and high pressure state inside the inner liner 1. In other possible embodiments, the structure of the float 3 is not specifically limited, as long as it can cooperate with the float hole 33 to allow the inner liner 1 to have both exhaust and sealing states.
[0054] In this embodiment, the float control device 4 includes an electromagnet 41 and an elastic element. The elastic element is disposed on the top surface of the float 3 and exerts pressure on the float 3. The electromagnet 41 is disposed above the float 3. The control unit is electrically connected to the electromagnet 41 and changes the magnitude of the force exerted by the float control device 4 by switching the electromagnet 41 on and off. The electromagnet 41 and the elastic element are used as the float control device 4. The elastic element is disposed on the top surface of the float 3 and applies downward pressure to the float 3, causing the float 3 to fall. The electromagnet 41 is disposed above the float 3 and, when energized, generates an upward magnetic attraction force on the float 3, causing the float 3 to float. The electromagnet 41 is electrically connected to the control unit, which controls the on / off state of the electromagnet 41 to change the state of the float 3. In other possible embodiments, the float control device 4 can also be designed with other structures, as long as it can control the state of the float 3.
[0055] The pressure steamer includes a fixed surface 5 located above the float 3. An electromagnet 41 is fixed to the fixed surface 5, and two ends of an elastic element are connected to the electromagnet 41 and the float 3, respectively. The fixed surface 5 exists inside the pressure steamer, and the electromagnet 41 can be positioned above the float 3 by connecting to the fixed surface 5. When the electromagnet 41 is energized, it provides an upward force to the float 3. The elastic element is positioned between the electromagnet 41 and the float 3, applying pressure to the float 3 by abutting against the electromagnet 41. When the electromagnet 41 is de-energized, the elastic element quickly rebounds, causing the float 3 to fall. In other embodiments, the electromagnet 41 can also be fixed using other devices, as long as it is positioned above the float 3 and can provide a force to the float 3.
[0056] Specifically, the pressure exerted by the elastic element on the float 3 is greater than the pressure inside the pressure steamer that causes the float 3 to float when the pressure steamer is working. The elastic element is used to press down the float 3. When the pressure steamer is not in the baking state, there is no need to make the float 3 float up for sealing. The float 3 needs to always be in a state where it is pressed down and cannot float up. The pressure applied by the elastic element to the float 3 needs to be greater than the pressure inside the pressure steamer that causes the float 3 to float up.
[0057] Furthermore, the elastic element is a spring 42, and a connecting member 34 is provided at the top of the float 3. The diameter of the connecting member 34 is larger than the diameter of the float 3. The spring 42 is connected to the float 3 through the connecting member 34, and the diameter of the connecting member 34 is larger than the diameter of the spring 42. Choosing the spring 42 as the elastic element results in a simple and inexpensive component, and it is easy to replace if damaged. The connecting member 34 at the top of the float 3 is used to fully connect the float 3 and the spring 42. The diameter of the connecting member 34 is larger than the diameters of both the float 3 and the spring 42, ensuring that the float 3 is evenly subjected to the downward pressure applied by the spring 42. This allows the float 3 to float and fall normally, preventing uneven force that could damage the float 3. In other possible embodiments, other components can also be used as the elastic element, as long as they can apply pressure to the float 3.
[0058] In this embodiment, when the humidity sensor 2 detects that the humidity is greater than the preset value, the electromagnet 41 is not energized, and the spring 42 applies downward pressure to the float 3, causing the float 3 to fall. At this time, the food is baked in the inner liner 1 of the pressure steamer in a rapidly dehumidifying environment. When the humidity sensor 2 detects that the humidity is less than the preset value, the control unit controls the electromagnet 41 to be energized, and the float 3 is attracted. The magnetic attraction force must be greater than the elastic force of the spring 42, causing the float 3 to float. At this time, it is the food coloring stage in the later stage of baking. The inner liner 1 becomes a sealed high temperature and high pressure environment, thereby achieving rapid coloring of the food surface.
[0059] Example 2
[0060] In this embodiment 2, the difference from the above embodiment 1 is that another float control device 4 is provided.
[0061] In an embodiment, such as Figures 4-7 As shown, the float control device 4 includes a motor 43 and a pressure plate 44. The motor 43 is located at the top of the inner liner 1, and a motor shaft 431 is provided on the side of the motor 43. The pressure plate 44 is connected to the motor shaft 431. The control device controls the rotation of the motor shaft 431 to change the shape of the pressure plate 44. By setting the motor 43 and the pressure plate 44 at the top of the inner liner 1, the float 3 is controlled. The pressure plate 44 rotates through the motor shaft 431 connected to the side of the motor 43. The motor 43 is energized to control the rotation, changing the shape of the pressure plate 44 to generate different forces on the float 3, controlling the float 3 to rise or fall. In other possible embodiments, the float control device 4 can also be designed with other structures, as long as it can control the state of the float 3.
[0062] Furthermore, a baffle 35 is provided on the top of the float 3, the diameter of which is larger than the diameter of the float 3, and a pressure plate 44 is positioned above the baffle 35. The baffle 35 is provided so that the pressure plate 44 can press down on the float 3. The larger diameter of the baffle 35 prevents the float 3 from falling off when the pressure steamer is not in use, facilitating removal and cleaning. The larger diameter of the baffle 35 also makes it easier for the pressure plate 44 and the baffle 35 to cooperate and control the float 3. In other possible embodiments, the shape of the baffle 35 is not specifically limited, as long as it can cooperate with the pressure plate 44 to change the state of the float 3.
[0063] Specifically, the pressure plate 44 is fixed to the motor shaft 431 and flips as the motor shaft 431 rotates. When the pressure plate 44 is perpendicular to the top surface of the float 3, the pressure plate 44 presses down on the baffle 35. When the pressure plate 44 is parallel to the top surface of the float 3, the pressure plate 44 does not contact the baffle 35. The motor 43 controls the rotation of the motor shaft 431, causing the pressure plate 44 to flip. When the pressure plate 44 is in a vertical state, it presses down on the baffle 35 on the float 3, causing the float 3 to fall and the pressure steamer to exhaust normally. When the pressure plate 44 is in a parallel state, the pressure plate 44 does not contact the float 3 and the baffle 35, the float 3 floats up, and the pressure steamer is in a high temperature and high pressure state.
[0064] In this embodiment, when the humidity sensor 2 detects that the humidity is greater than the preset value, the control unit controls the motor 43 to rotate the pressure plate 44 to a vertical state. The pressure plate 44 presses down on the baffle 35, and the float 3 is in a falling state. At this time, the food is baked in the inner liner 1 of the pressure steamer in a rapidly dehumidifying environment. When the humidity sensor 2 detects that the humidity is less than the preset value, the control unit controls the motor 43 to rotate the pressure plate 44 to a parallel state. The pressure plate 44 is not in contact with the baffle 35, and the float 3 is in an upward state. At this time, it is the food coloring stage in the later stage of baking. The inner liner 1 becomes a sealed high temperature and high pressure environment, thereby achieving rapid coloring of the food surface.
[0065] It is hereby noted that, in both embodiments, as Figures 1-7 As shown, the top of the float 3 can be simultaneously equipped with a baffle 35 and a connector 34. The connector 34 is located above the baffle 35 and is an integral component. The diameter of the connector 34 is larger than the diameter of the float 3. The spring 42 is connected to the float 3 through the connector 34, and the diameter of the connector 34 is larger than the diameter of the spring 42. The diameter of the baffle 35 is larger than the diameter of the float 3. The pressure plate 44 is located above the baffle 35 and below the connector 34. The connector 34 and the baffle 35 are set as an integral component, which can simultaneously meet the use of different float control devices 4 in the two embodiments without the need for separate design.
[0066] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.
Claims
1. A pressure steamer, comprising an inner liner and a float disposed on the inner liner for venting air, the float achieving communication and closure between the inner liner and the outside world by floating up and down relative to the inner liner, characterized in that, The pressure steamer includes a humidity sensor and a float control device. Part of the humidity sensor extends into the interior of the inner liner. The float control device applies a downward force to the float, and the magnitude of the force is changed by internal magnetic force changes or partial shape changes. The pressure steamer also includes a control unit, which is electrically connected to the humidity sensor and the float control device.
2. The pressure steamer as described in claim 1, characterized in that, The pressure steamer is provided with a float hole, which is a through hole at the top of the inner liner. The float includes a float rod and a float head. The float head is connected to one end of the float rod. The float rod extends into the float hole, and the float head is located inside the inner liner. The diameter of the float rod is smaller than the diameter of the float hole, and the diameter of the float head is larger than the diameter of the float hole.
3. The pressure steamer as described in claim 1, characterized in that, The float control device includes an electromagnet and an elastic element. The elastic element is disposed on the top surface of the float and exerts pressure on the float. The electromagnet is disposed above the float. The control unit is electrically connected to the electromagnet and changes the magnitude of the force exerted by the float control device on the float by switching the electromagnet on and off.
4. The pressure steamer as described in claim 3, characterized in that, The pressure steamer includes a fixed surface located above the float, the electromagnet is fixed to the fixed surface, and the two ends of the elastic element are respectively connected to the electromagnet and the float.
5. The pressure steamer as described in claim 3, characterized in that, The pressure exerted on the float by the elastic element is greater than the pressure value inside the pressure steamer that causes the float to float when the pressure steamer is working.
6. The pressure steamer as described in claim 3, characterized in that, The elastic element is a spring, and a connector is provided at the top of the float. The diameter of the connector is larger than the diameter of the float. The spring is connected to the float through the connector, and the diameter of the connector is larger than the diameter of the spring.
7. The pressure steamer as described in claim 6, characterized in that, The float control device includes a motor and a pressure plate. The motor is located at the top of the inner liner and is electrically connected to the control unit. A motor shaft is provided on the side of the motor, and the pressure plate is connected to the motor shaft. The float control device controls the rotation of the motor shaft to achieve the shape change of the pressure plate.
8. The pressure steamer as described in claim 7, characterized in that, A baffle plate is provided on the top of the float, the diameter of which is larger than the diameter of the float, and the pressure plate is located above the baffle plate.
9. The pressure steamer as described in claim 8, characterized in that, The pressure plate is fixed to the motor shaft and rotates with the rotation of the motor shaft. When the pressure plate is perpendicular to the top surface of the float, the pressure plate presses down on the baffle. When the pressure plate is parallel to the top surface of the float, the pressure plate does not contact the baffle.
10. The pressure steamer as described in claim 7, characterized in that, The top of the float is provided with a baffle and a connector. The connector is located above the baffle and is an integral part. The diameter of the connector is larger than the diameter of the float. The spring is connected to the float through the connector. The diameter of the connector is larger than the diameter of the spring. The diameter of the baffle is larger than the diameter of the float. The pressure plate is located above the baffle and below the connector.