Opening and closing control device and cooking utensil
The exhaust passage is controlled by driving the magnetic component to move the sealing member, which solves the problem of water loss caused by the fixed area of the exhaust passage in the cooking appliance, and realizes the water vapor in the cooking chamber within a reasonable range under high temperature, which improves the cooking taste of food and user experience.
Patent Information
- Application Number
- CN202323294451.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-04
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2033-12-04
AI Technical Summary
The area of the exhaust passage of existing cooking utensils is fixed, which makes it difficult to control the moisture and temperature of the food in the cooking chamber, resulting in overflow and loss of heat in the cooking and porridge, affecting the taste of the food.
The sealing element is driven to control the opening and closing of the exhaust passage. The magnetic field strength is negatively correlated with the temperature, and the sealing area of the sealing element is positively correlated with the temperature, so as to reduce exhaust or not exhaust at high temperatures, thereby maintaining cooking. The water vapor in the cavity is within a reasonable range.
It effectively reduces the loss of food moisture at high temperatures, improves the cooking taste of food, and improves the user experience of cooking utensils.
Smart Images
Figure CN222171936U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of kitchen appliances, and in particular to an opening and closing control device and a cooking appliance. Background Art
[0002] The cooking cavity of the cooking appliance is provided with an exhaust passage connected to the outside world. The area of the exhaust passage is mostly a fixed structure, which makes it impossible to effectively control the moisture content of food in the cooking cavity and the temperature of the cavity, resulting in overflow problems during cooking rice, porridge and other functions, as well as heat and moisture loss during insulation and freshness preservation. In addition, there is too much moisture in food for frying, air frying, etc., which cannot be discharged quickly, affecting the crispy and tender taste of the food.
[0003] In the related art, the cooking appliance is provided with an automatic opening and closing control structure. In the above control structure, when the temperature in the cooking cavity reaches a set threshold, the exhaust hole of the control structure automatically opens. However, since the cooking appliance will continue to exhaust air at high temperature, the moisture of the food is easily lost, resulting in a poor taste of the final cooked food, which reduces the user experience. Utility Model Content
[0004] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.
[0005] To this end, the utility model proposes an opening and closing control device that can keep the water vapor in the cooking cavity within a reasonable range, which is beneficial to improving the taste of cooked food.
[0006] The utility model also provides a cooking utensil.
[0007] The opening and closing control device of the utility model comprises: a shell, in which an exhaust passage is arranged; an exhaust control component, which is arranged in the shell, and comprises a magnetic component with variable magnetic field strength and a sealing member connected to the magnetic component, wherein the magnetic field strength of the magnetic component is negatively correlated with the temperature, and the magnetic component drives the sealing member to move to seal and open the exhaust passage through the change of its magnetic field strength, and the area of the exhaust passage blocked by the sealing member is positively correlated with the temperature in the shell.
[0008] According to the opening and closing control device of the utility model, when the opening and closing control device is working, the shell can be heated to change the magnetic field strength of the magnetic component, so that the blocking piece can be driven to move to open and close the exhaust channel. Since the magnetic field strength of the magnetic component is negatively correlated with the temperature, and the area of the exhaust channel blocked by the blocking piece is positively correlated with the temperature in the shell, the magnetic field strength of the magnetic component gradually weakens as the temperature rises, so that the blocking piece gradually blocks the exhaust channel, that is, the area of the exhaust channel blocked by the blocking piece gradually increases, and the actual flow area of the exhaust channel gradually decreases, thereby reducing the flow of steam in the exhaust channel. The magnetic field strength of the magnetic component gradually increases as the temperature decreases, so that the blocking piece gradually opens the exhaust channel, that is, the area of the exhaust channel blocked by the blocking piece gradually decreases, and the actual flow area of the exhaust channel gradually increases, thereby increasing the flow of steam in the exhaust channel. Therefore, the opening and closing control device of the cooking utensil of the utility model can reduce exhaust or no exhaust at a higher temperature, thereby keeping the water vapor in the cooking cavity within a reasonable range, which is conducive to improving the taste of food cooking.
[0009] Optionally, the blocking member has a closed position for completely blocking the exhaust passage and an open position for completely opening the exhaust passage, the magnetic component has a magnetized state when the temperature is lower than a preset value and a demagnetized state when the temperature is higher than a preset value, the blocking member is in the open position when the magnetic component is in the magnetized state, and the blocking member is in the closed position when the magnetic component is in the demagnetized state. The opening and closing control device of the utility model can completely open and completely close the exhaust passage, so that the opening and closing control device can completely block the exhaust passage under the condition that the temperature is higher than the preset value, and can also completely open the exhaust passage under the condition that the temperature is lower than the preset value, thereby improving the exhaust efficiency of the opening and closing control device, and is conducive to keeping the water vapor in the cooking chamber within a reasonable range, and the use effect is better.
[0010] Optionally, the magnetic component includes a first magnetic component and a second magnetic component with opposite magnetic pole directions, at least one of the first magnetic component and the second magnetic component has the magnetized state and the demagnetized state, one of the first magnetic component and the second magnetic component is connected to the blocking component, in the magnetized state, the first magnetic component and the second magnetic component are close to each other so that the blocking component is separated from the exhaust passage, and in the demagnetized state, the first magnetic component and the second magnetic component are away from each other so that the blocking component blocks the exhaust passage. The opening and closing control device of the utility model utilizes the magnetic force between the first magnetic component and the second magnetic component to quickly open and close the exhaust passage, and has a simple structural arrangement and is easy to process and manufacture.
[0011] Optionally, an air inlet and an air outlet are provided on the shell, and the air inlet and the air outlet are both connected to the exhaust channel, the first magnetic component is arranged adjacent to the air outlet, the second magnetic component is arranged adjacent to the air inlet and connected to the blocking component, and in the magnetized state, the second magnetic component is spaced apart from the air inlet, and in the demagnetized state, the second magnetic component blocks the air inlet. Thus, in the demagnetized state, the magnetic force between the first magnetic component and the second magnetic component is weakened, and the second magnetic component will drive the blocking component to fall under the action of gravity, so that the blocking component blocks the air inlet. In the magnetized state, the magnetic force between the first magnetic component and the second magnetic component is strengthened, and the second magnetic component drives the blocking component to move toward the first magnetic component to open the air inlet. Therefore, the magnetic component of the opening and closing control device of the utility model has a simple structure and a reasonable arrangement, which can improve the reliability of the opening and closing control device when it is working.
[0012] Optionally, the exhaust control assembly further comprises an elastic member, which presses the blocking member toward the air inlet. Thus, in the demagnetized state, the elastic member can drive the second magnetic member to move downward, so that the blocking member is driven to block the air inlet under the combined action of the gravity of the second magnetic member and the elastic force of the elastic member, thereby improving the reliability and sensitivity of the opening and closing control device when it is working.
[0013] Optionally, the shell includes a base and a top cover connected to each other, the air inlet is arranged on the base, the air outlet is arranged on the top cover, a positioning part is arranged on the top cover, the first magnetic part is installed in the positioning part, the blocking part has a mounting groove, the positioning part is slidably sleeved in the mounting groove, and the second magnetic part is arranged in the mounting groove. The opening and closing control device of the utility model can arrange the parts in the shell compactly by arranging the second magnetic part in the mounting groove, and the positioning part is slidably sleeved in the mounting groove, which can guide the up and down movement of the blocking part, which is conducive to ensuring the reliability of the movement of the blocking part.
[0014] Optionally, the outer peripheral wall of the first magnetic member and the inner peripheral wall of the positioning portion define a first slot, the outer peripheral wall of the second magnetic member and the inner peripheral wall of the mounting slot define a second slot, one end of the elastic member is installed in the first slot, and the other end of the elastic member is installed in the second slot. The opening and closing control device of the utility model can improve the firmness of the assembly of the elastic member by connecting the elastic member in the above manner, and the installation method is simple and easy to process and manufacture.
[0015] Optionally, the opening and closing control device further comprises a lifting column, one end of which is mounted on the second magnetic member, and the other end of which is passed through the top cover. The opening and closing control device of the utility model is provided with a lifting column, so that the user can judge the opening and closing state of the opening and closing control device by observing the height of the lifting column, with a high degree of visualization and a good user experience.
[0016] Optionally, the inner wall of the base is provided with a plurality of limit posts, which are arranged at intervals along the circumference of the base and extend along the axial direction of the base, and the outer peripheral wall of the blocking member is in sliding contact with the limit posts. The opening and closing control device of the utility model can constrain the radial direction of the blocking member and guide the movement of the blocking member by setting the limit posts, so as to improve the reliability of the movement of the blocking member.
[0017] Optionally, an air collecting ring is provided on the outer side of the base, and the air collecting ring is arranged circumferentially around the air inlet. The opening and closing control device of the utility model can guide the steam entering the air inlet by providing the air collecting ring, which is beneficial to improving the exhaust efficiency of the opening and closing control device.
[0018] According to the cooking utensil of the present invention, it comprises an opening and closing control device, which is the opening and closing control device described in any one of the embodiments of the present invention; a cooking body, wherein a cooking cavity is provided in the cooking body, and the opening and closing control device is provided on the cooking body and communicated with the cooking cavity.
[0019] When the cooking appliance is working, the shell can be heated to change the magnetic field strength of the magnetic component, so that the blocking piece can be driven to move to open and close the exhaust channel. Since the magnetic field strength of the magnetic component is negatively correlated with the temperature, and the area of the exhaust channel blocked by the blocking piece is positively correlated with the temperature in the shell, the magnetic field strength of the magnetic component gradually weakens as the temperature rises, so that the blocking piece gradually blocks the exhaust channel, that is, the area of the exhaust channel blocked by the blocking piece gradually increases, and the actual flow area of the exhaust channel gradually decreases, thereby reducing the flow of steam in the exhaust channel. The magnetic field strength of the magnetic component gradually increases as the temperature decreases, so that the blocking piece gradually opens the exhaust channel, that is, the area of the exhaust channel blocked by the blocking piece gradually decreases, and the actual flow area of the exhaust channel gradually increases, thereby increasing the flow of steam in the exhaust channel. Therefore, the opening and closing control device of the cooking appliance of the utility model can reduce exhaust or not exhaust at a higher temperature, thereby keeping the water vapor in the cooking cavity within a reasonable range, which is conducive to improving the taste of food cooking. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a front view of the cooking device according to the embodiment of the present invention.
[0021] Figure 2It is an isometric view of the opening and closing control device of an embodiment of the utility model.
[0022] Figure 3 It is an exploded view of the opening and closing control device of an embodiment of the utility model.
[0023] Figure 4 It is a cross-sectional view of the explosion state of the opening and closing control device of the embodiment of the utility model.
[0024] Figure 5 It is a cross-sectional view of the opening and closing control device of the embodiment of the utility model in the open position.
[0025] Figure 6 It is a cross-sectional view of the opening and closing control device of an embodiment of the utility model in a closed position.
[0026] Figure 7 It is an isometric view of the base of the opening and closing control device of the embodiment of the utility model.
[0027] Figure 8 It is a bottom view of the top cover of the opening and closing control device of the embodiment of the utility model.
[0028] Reference numerals:
[0029] 1. Opening and closing control device;
[0030] 11. Shell; 111. Base; 1111. Air inlet; 1112. Limiting column; 1113. Air collecting ring; 1114. Matching groove; 112. Top cover; 1121. Air outlet; 1122. Positioning part; 1123. First card slot; 1124. Buckle; 113. Exhaust channel; 12. Exhaust control assembly; 121. Magnetic component; 1211. First magnetic component; 1212. Second magnetic component; 122. Blocking component; 1221. Mounting groove; 1222. Second card slot; 123. Elastic component; 124. Lifting column;
[0031] 2. Cooking body; 21. Cooking cavity; 22. Pot body; 23. Pot cover. DETAILED DESCRIPTION
[0032] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but cannot be understood as limiting the present invention.
[0033] Please refer to the following Figures 1 to 8 The opening and closing control device 1 and the cooking appliance according to the embodiment of the utility model are described.
[0034] The opening and closing control device 1 of the embodiment of the utility model comprises: a housing 11 and an exhaust control component 12, wherein an exhaust passage 113 is provided in the housing 11, and the exhaust control component 12 is provided in the housing 11. The exhaust control component 12 comprises a magnetic component 121 with a variable magnetic field strength and a blocking member 122 connected to the magnetic component 121, wherein the magnetic field strength of the magnetic component 121 is negatively correlated with the temperature, and the magnetic component 121 drives the blocking member 122 to move to block and open the exhaust passage 113 through the change of its magnetic field strength, and the area of the exhaust passage 113 blocked by the blocking member 122 is positively correlated with the temperature in the housing 11.
[0035] According to the opening and closing control device 1 of the embodiment of the utility model, when the opening and closing control device 1 is working, the shell 11 can be heated to change the magnetic field strength of the magnetic component 121, thereby driving the blocking member 122 to move to open and close the exhaust channel 113.
[0036] Since the magnetic field strength of the magnetic component 121 is negatively correlated with the temperature, and the area of the exhaust passage 113 blocked by the blocking member 122 is positively correlated with the temperature in the shell 11, the magnetic field strength of the magnetic component 121 gradually weakens as the temperature rises, so that the blocking member 122 gradually blocks the exhaust passage 113, that is, the area of the exhaust passage 113 blocked by the blocking member 122 gradually increases, and the actual flow area of the exhaust passage 113 gradually decreases, thereby reducing the flow rate of steam in the exhaust passage 113. Similarly, the magnetic field strength of the magnetic component 121 gradually increases as the temperature decreases, so that the blocking member 122 gradually opens the exhaust passage 113, that is, the area of the exhaust passage 113 blocked by the blocking member 122 gradually decreases, and the actual flow area of the exhaust passage 113 gradually increases, thereby increasing the flow rate of steam in the exhaust passage 113.
[0037] Therefore, the opening and closing control device 1 of the cooking utensil of the present invention can reduce exhaust or not exhaust at a higher temperature, thereby keeping the water vapor in the cooking cavity 21 within a reasonable range, which is beneficial to improving the taste of cooked food.
[0038] It is understandable that the blocking member 122 can block or open the port (i.e., the air inlet 1111 or the air outlet 1121) of the exhaust channel 113 to close or open the exhaust channel 113. Alternatively, the blocking member 122 can block or open any cross section on the flow path of the exhaust channel 113 to close or open the exhaust channel 113.
[0039] Alternatively, if Figure 5 and Figure 6As shown, the blocking member 122 has a closed position for completely blocking the exhaust passage 113 and an open position for completely opening the exhaust passage 113, and the magnetic component 121 has a magnetized state with a temperature lower than a preset value and a demagnetized state with a temperature higher than a preset value. When the magnetic component 121 is in the magnetized state, the blocking member 122 is in the open position, and when the magnetic component 121 is in the demagnetized state, the blocking member 122 is in the closed position. It can be understood that the opening and closing control device 1 can completely block the exhaust passage 113 under the condition that the temperature is higher than the preset value, and can also completely open the exhaust passage 113 under the condition that the temperature is lower than the preset value, thereby improving the exhaust efficiency of the opening and closing control device 1, and is conducive to keeping the water vapor in the cooking cavity 21 within a reasonable range, and the use effect is better.
[0040] In one example, if Figure 5 and Figure 6 As shown, the magnetic component 121 includes a first magnetic component 1211 and a second magnetic component 1212 with opposite magnetic pole directions, at least one of the first magnetic component 1211 and the second magnetic component 1212 has a magnetized state and a demagnetized state, and one of the first magnetic component 1211 and the second magnetic component 1212 is connected to the blocking component 122. In the magnetized state, the first magnetic component 1211 and the second magnetic component 1212 are close to each other so that the blocking component 122 is separated from the exhaust channel 113, and in the demagnetized state, the first magnetic component 1211 and the second magnetic component 1212 are away from each other so that the blocking component 122 blocks the exhaust channel 113. It can be understood that the opening and closing control device 1 of the utility model can quickly open and close the exhaust channel 113 by utilizing the magnetic force between the first magnetic component 1211 and the second magnetic component 1212, and the structure is simple and easy to process and manufacture.
[0041] In another example, the magnetic component 121 includes a first magnetic component 1211 and a second magnetic component 1212 having the same magnetic pole direction, at least one of the first magnetic component 1211 and the second magnetic component 1212 has a magnetized state and a demagnetized state, and one of the first magnetic component 1211 and the second magnetic component 1212 is connected to the blocking component 122. In the magnetized state, the first magnetic component 1211 and the second magnetic component 1212 are away from each other so that the blocking component 122 is separated from the exhaust channel 113, and in the demagnetized state, the first magnetic component 1211 and the second magnetic component 1212 are close to each other so that the blocking component 122 blocks the exhaust channel 113.
[0042] Take the arrangement of the first magnetic member 1211 and the second magnetic member 1212 in opposite directions as an example. Figure 5 and Figure 6 As shown, the housing 11 is provided with an air inlet 1111 and an air outlet 1121 , and both the air inlet 1111 and the air outlet 1121 are communicated with the exhaust passage 113 .
[0043] It is understandable that the external air inlet 1111 may be disposed on the bottom wall of the housing 11 or on the side wall of the housing 11. The air outlet 1121 may be disposed on the top wall of the housing 11 or on the side wall of the housing 11.
[0044] In one example, if Figure 6 As shown, the exhaust channel 113 extends in the up-down direction, the external air inlet 11111 is arranged at the lower end of the exhaust channel 113 (i.e., on the bottom wall of the shell 11), and the air outlet 1121 is arranged at the upper end of the exhaust channel 113 (i.e., on the top wall of the shell 11).
[0045] The first magnetic member 1211 is arranged adjacent to the air outlet 1121 , the second magnetic member 1212 is arranged adjacent to the air inlet 1111 and connected to the blocking member 122 , in the magnetized state, the second magnetic member 1212 is spaced apart from the air inlet 1111 , in the demagnetized state, the second magnetic member 1212 blocks the air inlet 1111 .
[0046] It is understandable that as the temperature inside the shell 11 increases, the magnetic attraction between the first magnetic part 1211 or the second magnetic part 1212 gradually weakens. When it reaches a critical value, the second magnetic part 1212 separates from the first magnetic part 1211 and drives the blocking part 122 to block the air inlet 1111. Similarly, when the temperature inside the shell 11 increases, the magnetic attraction between the first magnetic part 1211 or the second magnetic part 1212 gradually increases. When it reaches a critical value, the second magnetic part 1212 is attracted by the first magnetic part 1211, and the second magnetic part 1212 drives the blocking part 122 to move in a direction away from the air inlet 1111, so that steam can be discharged from the air inlet 1111. Therefore, the magnetic component 121 of the opening and closing control device 1 of the utility model has a simple structure and a reasonable layout, which can improve the reliability of the opening and closing control device 1 when it is working.
[0047] In one embodiment, Figures 3 to 6As shown, the exhaust control assembly 12 also includes an elastic member 123, and the elastic member 123 presses the blocking member 122 toward the direction of the air inlet 1111. For example, the elastic member 123 is arranged between the first magnetic member 1211 and the second magnetic member 1212. When the blocking member 122 is in the open position, the elastic member 123 is compressed and has elastic potential energy. When the temperature gradually rises, the magnetic attraction between the first magnetic member 1211 or the second magnetic member 1212 weakens. When the elastic force of the elastic member 123 is greater than the magnetic force, the first magnetic member 1211 is separated from the second magnetic member 1212 to close the air inlet 1111. Therefore, in the demagnetized state, the elastic member 123 can drive the second magnetic member 1212 to move downward, so as to drive the blocking member 122 to block the air inlet 1111 under the combined action of the gravity of the second magnetic member 1212 and the elastic force of the elastic member 123, thereby improving the reliability and sensitivity of the opening and closing control device 1 when it is working.
[0048] like Figures 3 to 6 As shown, the housing 11 includes a base 111 and a top cover 112 connected to each other, an air inlet 1111 is provided on the base 111, an air outlet 1121 is provided on the top cover 112, a positioning portion 1122 is provided on the top cover 112, a first magnetic member 1211 is installed in the positioning portion 1122, a blocking member 122 has a mounting groove 1221, the positioning portion 1122 is slidably sleeved in the mounting groove 1221, and a second magnetic member 1212 is provided in the mounting groove 1221. For example, the second magnetic member 1212 is a soft magnet, and the first magnetic member 1211 is a permanent magnet. When the temperature in the housing 11 rises to a certain level, the soft magnet will continue to demagnetize when heated at high temperature, so that the magnetic force between the first magnetic member 1211 and the second magnetic member 1212 is gradually reduced. The opening and closing control device 1 of the utility model can prevent the second magnetic part 1212 from being deformed by heat by arranging the second magnetic part 1212 in the installation groove 1221, and makes the parts in the shell 11 arranged compactly, and the positioning part 1122 is slidably sleeved in the installation groove 1221, which can guide the up and down movement of the blocking part 122, which is beneficial to ensure the reliability of the movement of the blocking part 122.
[0049] Alternatively, if Figure 5 and Figure 6 As shown, the outer peripheral wall of the first magnetic member 1211 and the inner peripheral wall of the positioning portion 1122 define a first slot 1123, the outer peripheral wall of the second magnetic member 1212 and the inner peripheral wall of the mounting slot 1221 define a second slot 1222, one end of the elastic member 123 is mounted in the first slot 1123, and the other end of the elastic member 123 is mounted in the second slot 1222. For example, the elastic member 123 is a cylindrical coil spring. The opening and closing control device 1 of the utility model can improve the firmness of the assembly of the elastic member 123 by clamping the elastic member 123 in the above-mentioned manner, and the installation method is simple, which is convenient for processing and manufacturing.
[0050] like Figures 3 to 6 As shown, in order to facilitate the user to observe the working state of the opening and closing control device 1, the opening and closing control device 1 also includes a lifting column 124, one end of the lifting column 124 is installed on the second magnetic member 1212, and the other end of the lifting column 124 passes through the top cover 112. It can be understood that when the second magnetic member 1212 drives the blocking member 122 to block the air inlet 1111, the lifting column 124 is in a descending state. When the second magnetic member 1212 is magnetically attracted to the first magnetic member 1211, the lifting column 124 is in an ascending state. Therefore, the opening and closing control device 1 of the utility model is provided with the lifting column 124, so that the user can judge the opening and closing state of the opening and closing control device 1 by observing the height of the lifting column 124, the visualization degree is high, and the user experience is good.
[0051] like Figure 5 and Figure 7 As shown, the inner wall of the base 111 is provided with a plurality of limiting columns 1112, which are arranged at intervals along the circumference of the base 111 and extend along the axial direction of the base 111, and the outer peripheral wall of the blocking member 122 is in sliding contact with the limiting columns 1112. The opening and closing control device 1 of the utility model can restrict the radial direction of the blocking member 122 and guide the movement of the blocking member 122 by providing the limiting columns 1112, so as to improve the reliability of the movement of the blocking member 122.
[0052] Alternatively, if Figure 5 and Figure 6 As shown, an air collecting ring 1113 is provided on the outer side of the base 111, and the air collecting ring 1113 is arranged around the circumference of the air inlet 1111. There may be multiple air inlets 1111, and the multiple air inlets 1111 are arranged at intervals on the base 111. The opening and closing control device 1 of the utility model can guide the steam entering the air inlet 1111 by providing the air collecting ring 1113, which is beneficial to improving the exhaust efficiency of the opening and closing control device 1.
[0053] like Figure 7 and Figure 8 As shown, in order to facilitate the assembly and disassembly of the base 111 and the top cover 112, a buckle 1124 is provided on one of the base 111 and the top cover 112, and a matching groove 1114 is provided on the other, and the buckle 1124 is rotatably engaged with the matching groove 1114 along the circumferential direction of the shell 11. For example, the top cover 112 is provided with a buckle 1124, and the base 111 is provided with a matching groove 1114. The buckle 1124 can be a threaded structure or an L-shaped structure, and the buckle 1124 and the matching groove 1114 are rotatably engaged, so that the base 111 and the top cover 112 can be easily assembled and disassembled, and the processing and manufacturing are simple.
[0054] A cooking appliance according to another embodiment of the present invention comprises an opening and closing control device 1 and a cooking body 2. The opening and closing control device 1 is the opening and closing control device 1 of the present invention. A cooking cavity 21 is provided in the cooking body 2. The opening and closing control device 1 is provided on the cooking body 2 and communicated with the cooking cavity 21.
[0055] Specifically, Figure 1 As shown, the cooking body 2 includes a pot body 22 and a pot cover 23 , the pot cover 23 is hinged to the pot body 22 , and the opening and closing control device 1 is installed on the pot cover 23 .
[0056] According to the cooking device of the utility model, when the cooking device is working, the shell 11 can be heated to change the magnetic field strength of the magnetic component 121, so that the blocking member 122 can be driven to move to open and close the exhaust channel 113. Since the magnetic field strength of the magnetic component 121 is negatively correlated with the temperature, and the area of the exhaust channel 113 blocked by the blocking member 122 is positively correlated with the temperature in the shell 11, the magnetic field strength of the magnetic component 121 gradually weakens as the temperature rises, so that the blocking member 122 gradually blocks the exhaust channel 113, that is, the area of the exhaust channel 113 blocked by the blocking member 122 gradually increases, and the actual flow area of the exhaust channel 113 gradually decreases, thereby reducing the flow rate of steam in the exhaust channel 113. The magnetic field strength of the magnetic component 121 gradually increases as the temperature decreases, so that the blocking member 122 gradually opens the exhaust channel 113, that is, the area of the exhaust channel 113 blocked by the blocking member 122 gradually decreases, and the actual flow area of the exhaust channel 113 gradually increases, thereby increasing the flow rate of steam in the exhaust channel 113. Therefore, the opening and closing control device 1 of the cooking utensil of the present invention can reduce exhaust or not exhaust at a higher temperature, thereby keeping the water vapor in the cooking cavity 21 within a reasonable range, which is beneficial to improving the taste of cooked food.
[0057] It can be understood that the cooking utensil in the embodiment of the utility model utilizes the property of demagnetization of magnetic materials (magnetic component 121) when heated, and uses the temperature change of the food cooking cavity 21 as the action condition for changing the size of the connection area between the cooking cavity 21 and the outside world, thereby achieving the switching between the micro-pressure sealed state and the normal pressure cooking state of the cooking cavity 21, realizing the purpose of anti-overflow technology for the steaming function and adjusting the taste of food for the frying, roasting and frying functions.
[0058] Optionally, the cooking utensil may be an oven, an air fryer, a microwave oven, an electric steamer, an electric rice cooker, an electric pressure cooker or a microwave oven / steamer. The present application does not specifically limit the specific type of the cooking utensil.
[0059] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0060] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0061] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0062] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0063] In the present utility model, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.
[0064] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are illustrative and cannot be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.
Claims
1. An opening and closing control device (1), characterized in that: include: A housing (11), wherein an exhaust passage (113) is provided in the housing (11); An exhaust control component (12), the exhaust control component (12) being arranged in the housing (11), the exhaust control component (12) comprising a magnetic component (121) with a variable magnetic field strength and a blocking component (122) connected to the magnetic component (121), the magnetic field strength of the magnetic component (121) being negatively correlated with the temperature, the magnetic component (121) driving the blocking component (122) to move to block and open the exhaust passage (113) by changing its magnetic field strength, and the area of the exhaust passage (113) blocked by the blocking component (122) being positively correlated with the temperature in the housing (11).
2. The opening and closing control device (1) according to claim 1, characterized in that: The blocking member (122) has a closed position for completely blocking the exhaust passage (113) and an open position for completely opening the exhaust passage (113); the magnetic component (121) has a magnetized state in which the temperature is lower than a preset value and a demagnetized state in which the temperature is higher than a preset value; when the magnetic component (121) is in the magnetized state, the blocking member (122) is in the open position; and when the magnetic component (121) is in the demagnetized state, the blocking member (122) is in the closed position.
3. The opening and closing control device (1) according to claim 2, characterized in that: The magnetic component (121) comprises a first magnetic component (1211) and a second magnetic component (1212) having opposite magnetic pole directions, at least one of the first magnetic component (1211) and the second magnetic component (1212) having the magnetized state and the demagnetized state, and one of the first magnetic component (1211) and the second magnetic component (1212) is connected to the blocking component (122), in the magnetized state, the first magnetic component (1211) and the second magnetic component (1212) are close to each other so that the blocking component (122) is separated from the exhaust channel (113), and in the demagnetized state, the first magnetic component (1211) and the second magnetic component (1212) are far away from each other so that the blocking component (122) blocks the exhaust channel (113).
4. The opening and closing control device (1) according to claim 3, characterized in that: The shell (11) is provided with an air inlet (1111) and an air outlet (1121); the air inlet (1111) and the air outlet (1121) are both in communication with the exhaust passage (113); the first magnetic member (1211) is arranged adjacent to the air outlet (1121); the second magnetic member (1212) is arranged adjacent to the air inlet (1111) and is connected to the blocking member (122); in the magnetized state, the second magnetic member (1212) is spaced apart from the air inlet (1111); in the demagnetized state, the second magnetic member (1212) blocks the air inlet (1111).
5. The opening and closing control device (1) according to claim 4, characterized in that: The exhaust control component (12) further comprises an elastic member (123), wherein the elastic member (123) presses the blocking member (122) in the direction of the air inlet (1111).
6. The opening and closing control device (1) according to claim 5, characterized in that: The shell (11) comprises a base (111) and a top cover (112) connected to each other; the air inlet (1111) is arranged on the base (111); the air outlet (1121) is arranged on the top cover (112); a positioning portion (1122) is provided on the top cover (112); the first magnetic member (1211) is installed in the positioning portion (1122); the blocking member (122) has a mounting groove (1221); the positioning portion (1122) is slidably sleeved in the mounting groove (1221); and the second magnetic member (1212) is arranged in the mounting groove (1221).
7. The opening and closing control device (1) according to claim 6, characterized in that: The outer peripheral wall of the first magnetic member (1211) and the inner peripheral wall of the positioning portion (1122) define a first slot (1123), and the outer peripheral wall of the second magnetic member (1212) and the inner peripheral wall of the mounting slot (1221) define a second slot (1222), one end of the elastic member (123) is mounted in the first slot (1123), and the other end of the elastic member (123) is mounted in the second slot (1222).
8. The opening and closing control device (1) according to claim 6, characterized in that: It also includes a lifting column (124), one end of which is mounted on the second magnetic member (1212), and the other end of which passes through the top cover (112).
9. The opening and closing control device (1) according to claim 6, characterized in that: The inner wall of the base (111) is provided with a plurality of limiting columns (1112), the plurality of limiting columns (1112) are arranged at intervals along the circumference of the base (111) and extend along the axial direction of the base (111), and the outer peripheral wall of the blocking member (122) is in sliding contact with the limiting columns (1112); And / or, an air collecting ring (1113) is provided on the outer side of the base (111), and the air collecting ring (1113) is arranged around the circumference of the air inlet (1111).
10. A cooking utensil, characterized in that: include: An opening and closing control device (1), wherein the opening and closing control device (1) is the opening and closing control device (1) according to any one of claims 1 to 9; A cooking body (2), wherein a cooking cavity (21) is provided in the cooking body (2), and the opening and closing control device (1) is arranged on the cooking body (2) and is in communication with the cooking cavity (21).