Opening and closing control device and cooking utensil

Abstract

The utility model relates to an opening and closing control device and a cooking utensil, the opening and closing control device comprises a shell and an exhaust control assembly, an exhaust channel is arranged in the shell, the exhaust control assembly is arranged in the shell, and the exhaust control assembly comprises a deformation part which deforms along with temperature change, a plugging part and an elastic part, the blocking piece and the elastic component are both connected with the deformation piece, the deformation piece deforms and drives the blocking piece to move together with the elastic component so as to block and open the exhaust channel, and the area, blocking the exhaust channel, of the blocking piece is in positive correlation with the temperature in the shell. According to the opening and closing control device, water vapor in the cooking cavity can be kept within a reasonable range, and the cooking taste of food can be improved.

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 deformable part, a blocking part and an elastic part which are deformed with temperature changes, the blocking part and the elastic part are both connected to the deformable part, the deformable part drives the blocking part to move to block and open the exhaust passage through its deformation and together with the elastic part, and the area of ​​the exhaust passage blocked by the blocking part is positively correlated with the temperature in the shell.

[0008] According to the opening and closing control device of the utility model, since the deformable member can be deformed with temperature changes, when the cooking appliance is working, the shell can be heated to deform the deformable member, so that the deformable member and the elastic member cooperate with each other to open and close the exhaust channel. Since the area of ​​the exhaust channel blocked by the blocking member is positively correlated with the temperature in the shell, the opening and closing control device can gradually increase the area of ​​the exhaust channel blocked by the blocking member as the temperature rises, so as to reduce the actual flow area of ​​the exhaust channel, that is, reduce the flow rate of steam in the exhaust channel; the opening and closing control device can gradually reduce the area of ​​the exhaust channel blocked by the blocking member as the temperature decreases, so as to increase the actual flow area of ​​the exhaust channel, that is, increase the flow rate of steam in the exhaust channel. Therefore, the opening and closing control device of the utility model can reduce exhaust or not exhaust at a higher temperature, so as to keep 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 deformable member has an initial state in which the temperature is lower than a preset value and a deformed state in which the temperature is higher than the preset value, when the deformable member is in the initial state, the elastic force of the elastic member is greater than the deformation force of the deformable member and the blocking member is in the open position, and when the deformable member is in the deformed state, the elastic force of the elastic member is less than the deformation force of the deformable member and the blocking member is in the closed position. The opening and closing control device of the utility model can completely open and completely close the exhaust passage, thereby 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, which is conducive to keeping the water vapor in the cooking cavity within a reasonable range, and having a better use effect, and because the elastic force of the elastic member and the deformation force of the deformable member can act on the blocking member together, the opening and closing of the blocking member can be made more reliable.

[0010] Optionally, the elastic component and the deformable component are arranged on opposite sides of the blocking component, and the elastic component presses the blocking component in the direction of the deformable component. The opening and closing control device of the utility model can avoid interference with the elastic component when the deformable component deforms with temperature by arranging the elastic component and the deformable component on opposite sides of the blocking component, thereby improving the reliability of the opening and closing control device.

[0011] Optionally, a fulcrum portion is provided in the shell, the fulcrum portion abuts against the blocking member, the blocking member has a movable portion at one end away from the fulcrum portion, and the blocking member has an air-blocking portion at the other end away from the fulcrum portion, the movable portion is provided between the elastic component and the deformable component, and the elastic component and the deformable component can drive the movable portion to swing around the fulcrum portion so that the air-blocking portion blocks and opens the exhaust passage. The opening and closing control device of the utility model is convenient for processing and manufacturing the blocking member by setting the blocking member as a lever structure, and the elastic component and the deformable component jointly drive the movable portion to swing around the fulcrum portion so that the air-blocking portion blocks and opens the exhaust passage, and the structural design is simple and the cost is low.

[0012] Optionally, the elastic component includes an elastic member and a reset plate, the reset plate is arranged between the moving part and the elastic member, and the elastic member presses the reset plate toward the moving part. The opening and closing control device of the utility model can increase the contact area between the elastic member and the moving part through the reset plate and the moving part, thereby ensuring the reliability of the blocking member when it swings.

[0013] Optionally, the shell is provided with an air inlet and an air outlet, the air inlet includes a plurality of external air inlets, the external air inlet and the air outlet are both connected to the exhaust channel, there are a plurality of blocking members, each of the blocking members is provided with at least one air blocking portion, the plurality of air blocking portions correspond to the plurality of external air inlets one by one, and the air blocking portions can block and open the external air inlets. The opening and closing control device of the utility model is provided with a plurality of external air inlets to improve the exhaust efficiency of the opening and closing control device when the blocking member is in the open position.

[0014] Optionally, the blocking member includes a first blocking member and a second blocking member, the first blocking member includes a first moving part and at least one first air blocking part, the second blocking member includes a second moving part and at least one second air blocking part, one of the first moving part and the second moving part is provided with a protruding part, the other is provided with a recessed part, and the protruding part cooperates with the recessed part. The opening and closing control device of the utility model is conducive to ensuring the synchronization of the movement of the first blocking member and the second blocking member by adopting the above-mentioned structural arrangement of the first moving part and the second moving part, so that the opening and closing effect of the opening and closing control device is better.

[0015] Optionally, the air inlet further comprises an inner air inlet, the inner air inlet is spaced apart from the exhaust passage, and the inner air inlet is opposite to the deformable member. The opening and closing control device of the utility model can improve the sensitivity of the deformable member to temperature changes by making the inner air inlet opposite to the deformable member, thereby improving the accuracy of the opening and closing control device when opening and closing.

[0016] Optionally, the shell includes a shell body and a partition ring, the partition ring is arranged in the shell body, the deformable member is arranged in the partition ring, the outer wall of the partition ring and the inner wall of the shell body define the exhaust channel, and on a projection plane orthogonal to the axial direction of the partition ring, the inner air inlet is located within the outer peripheral contour surrounded by the partition ring, and the outer air inlet is arranged between the outer peripheral contour of the partition ring and the outer peripheral contour of the shell body. The opening and closing control device of the utility model can avoid the inner air inlet from being connected to the exhaust channel by providing a partition ring and arranging the inner air inlet and the outer air inlet in the above-mentioned structure, so as to prevent the problem of steam leakage from the inner air inlet when the opening and closing control device is in the closed position.

[0017] Optionally, the shell body includes a base and a top cover, the inner air inlet and the outer air inlet are arranged on the base, the air outlet is arranged on the top cover, the partition ring includes a first annular portion and a second annular portion, the first annular portion is arranged on the base, the second annular portion is arranged on the top cover, the first annular portion and the second annular portion cooperate, the fulcrum portion is a branch hole, the branch hole is formed between the first annular portion and the second annular portion, and the blocking member is passed through the branch hole. The opening and closing control device of the utility model can facilitate the processing and manufacturing of the shell by adopting the above-mentioned structural arrangement of the shell, and the structural design is simple and the cost is low.

[0018] Optionally, there are multiple deformable members, which are stacked and arranged along the thickness direction. The opening and closing control device of the utility model can adjust the number of deformable members according to the elastic force of the elastic component, thereby facilitating the adjustment of the overall deformation force of the deformable members, and has a better use effect.

[0019] A cooking utensil according to another embodiment of the present invention comprises an opening and closing control device, wherein the opening and closing control device is the opening and closing control device described in any one of the embodiments of the present invention; and 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.

[0020] According to the cooking utensil of the present invention, since the deformable part can be deformed with the change of temperature, when the cooking utensil is working, the shell can be heated to deform the deformable part, so that the deformable part and the elastic part cooperate with each other to make the blocking part open and close the exhaust channel. Since the area of ​​the exhaust channel blocked by the blocking part is positively correlated with the temperature in the shell, the opening and closing control device can gradually increase the area of ​​the exhaust channel blocked by the blocking part as the temperature rises, so as to reduce the actual flow area of ​​the exhaust channel, that is, reduce the flow rate of steam in the exhaust channel; the opening and closing control device can gradually reduce the area of ​​the exhaust channel blocked by the blocking part as the temperature decreases, so as to increase the actual flow area of ​​the exhaust channel, that is, increase the flow rate of steam in the exhaust channel. Therefore, the opening and closing control device of the cooking utensil of the present invention can reduce exhaust or not exhaust at a higher temperature, so as to keep 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

[0021] Figure 1 It is a schematic diagram of a cooking appliance according to an embodiment of the utility model.

[0022] Figure 2 It is an isometric view of an opening and closing control device of a new embodiment of the utility model.

[0023] Figure 3 It is an exploded view of an opening and closing control device of an embodiment of the utility model.

[0024] Figure 4 It is a cross-sectional view of an opening and closing control device of an embodiment of the utility model in an open position.

[0025] Figure 5 It is a cross-sectional view of an opening and closing control device in a closed position according to an embodiment of the utility model.

[0026] Figure 6 It is an isometric view of a base of an opening and closing control device according to an embodiment of the utility model.

[0027] Figure 7 It is a top view of the base of the opening and closing control device according to one embodiment of the utility model.

[0028] Figure 8 It is a cross-sectional view of a top cover of an opening and closing control device according to an embodiment of the utility model.

[0029] Fig. 9 It is a schematic diagram of a deformable member of an opening and closing control device according to an embodiment of the utility model.

[0030] Fig.10 It is an exploded view of a first blocking member and a second blocking member of an opening and closing control device according to an embodiment of the utility model.

[0031] Fig.11 It is an isometric view of an opening and closing control device of another embodiment of the utility model.

[0032] Fig.12 It is a cross-sectional view of an opening and closing control device in another embodiment of the utility model in an open position.

[0033] Fig.13 It is a cross-sectional view of an opening and closing control device in another embodiment of the utility model in a closed position.

[0034] Fig.14 It is an exploded view of an opening and closing control device of another embodiment of the utility model.

[0035] Fig.15 It is a cross-sectional view of an opening and closing control device according to another embodiment of the utility model.

[0036] Reference numerals:

[0037] 1. Opening and closing control device;

[0038] 11. Shell; 111. Base; 1111. Air inlet; 11111. External air inlet; 11112. Internal air inlet; 112. Top cover; 1121. Air outlet; 113. Exhaust channel; 114. Partition ring; 1141. First annular portion; 1142. Second annular portion; 1143. Fulcrum portion;

[0039] 12. Exhaust control assembly; 121. Deformable member; 1211. Main body; 1212. Deformable member; 122. Blocking member; 1221. Moving member; 12211. First moving member; 12212. Second moving member; 1222. Air blocking member; 12221. First air blocking member; 12222. Second air blocking member; 1223. Protruding member; 1224. Concave member; 123. Elastic member; 1231. Elastic member; 1232. Reset plate; 124. Partition plate;

[0040] 2. Cooking body; 21. Cooking cavity; 22. Pot body; 23. Pot cover. DETAILED DESCRIPTION

[0041] 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.

[0042] Please refer to the following Figures 1 to 15 The opening and closing control device 1 and the cooking appliance according to the embodiment of the utility model are described.

[0043] The opening and closing control device 1 of the embodiment of the utility model comprises: a housing 11 and an exhaust control assembly 12, wherein an exhaust passage 113 is provided in the housing 11, and the exhaust control assembly 12 is provided in the housing 11, and the exhaust control assembly 12 comprises a deformable member 121, a blocking member 122 and an elastic member 123 that deforms with temperature changes. The blocking member 122 and the elastic member 123 are both connected to the deformable member 121, and the deformable member 121 drives the blocking member 122 to move to block and open the exhaust passage 113 through its deformation and together with the elastic member 123, and the area of ​​the exhaust passage 113 blocked by the blocking member 122 is positively correlated with the temperature in the housing 11.

[0044] It should be noted that the area of ​​the exhaust passage 113 blocked by the blocking member 122 is positively correlated with the temperature in the shell 11, that is, when the temperature in the shell 11 increases, the area of ​​the exhaust passage 113 blocked by the blocking member 122 gradually increases, so that the actual flow area of ​​the exhaust passage 113 decreases, thereby reducing the flow rate of steam in the exhaust passage 113. Similarly, when the temperature in the shell 11 decreases, the area of ​​the exhaust passage 113 blocked by the blocking member 122 decreases, so that the actual flow area of ​​the exhaust passage 113 increases, thereby increasing the flow rate of steam in the exhaust passage 113.

[0045] In other words, the opening and closing control device 1 of the embodiment of the utility model can gradually close the exhaust passage 113 as the temperature increases, and can also gradually open the exhaust passage 113 as the temperature decreases.

[0046] According to the opening and closing control device 1 of the embodiment of the utility model, since the deformable member 121 can be deformed with temperature changes, when the cooking appliance is working, the shell 11 can be heated to deform the deformable member 121, so that the deformable member 121 and the elastic member 123 cooperate with each other to enable the blocking member 122 to open and close the exhaust channel 113.

[0047] Since the area of ​​the exhaust channel 113 blocked by the blocking member 122 is positively correlated with the temperature in the shell 11, the opening and closing control device 1 can gradually increase the area of ​​the exhaust channel 113 blocked by the blocking member 122 as the temperature rises, so as to reduce the actual flow area of ​​the exhaust channel 113, that is, reduce the flow rate of steam in the exhaust channel 113; the opening and closing control device 1 can gradually reduce the area of ​​the exhaust channel 113 blocked by the blocking member 122 as the temperature decreases, so as to increase the actual flow area of ​​the exhaust channel 113, that is, increase the flow rate of steam in the exhaust channel 113.

[0048] Therefore, the opening and closing control device 1 of the utility model can reduce exhaust or not exhaust at a higher temperature, so as to keep the water vapor in the cooking cavity 21 within a reasonable range, which is beneficial to improving the taste of cooked food.

[0049] 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.

[0050] Alternatively, if Figure 4 , Figure 5 , Fig.12 and Fig.13 As shown, the blocking member 122 has a closed position for completely blocking the exhaust channel 113 and an open position for completely opening the exhaust channel 113, and the deformable member 121 has an initial state with a temperature lower than a preset value and a deformed state with a temperature higher than a preset value. When the deformable member 121 is in the initial state, the elastic force of the elastic member 123 is greater than the deformation force of the deformable member 121 and the blocking member 122 is in the open position; when the deformable member 121 is in the deformed state, the elastic force of the elastic member 123 is less than the deformation force of the deformable member 121 and the blocking member 122 is in the closed position.

[0051] It can be understood that the opening and closing control device 1 can completely block the exhaust channel 113 when the temperature is higher than the preset value, and can also completely open the exhaust channel 113 when the temperature is lower than the preset value, thereby improving the exhaust efficiency of the opening and closing control device 1, which is beneficial to keeping the water vapor in the cooking cavity 21 within a reasonable range and having a better use effect. In addition, since the elastic force of the elastic component 123 and the deformation force of the deformable component 121 can act together on the blocking component 122, the opening and closing of the blocking component 122 can be made more reliable.

[0052] Alternatively, if Figure 4 , Figure 5 , Fig.12 and Fig.13 As shown, the elastic component 123 and the deformable component 121 are respectively arranged on opposite sides of the blocking component 122, and the elastic component 123 presses the blocking component 122 toward the direction of the deformable component 121. Figure 4 As shown, the elastic component 123 presses the blocking member 122 downward, and the deformable member 121 bulges and deforms upward when the temperature rises, so as to press the deformable member 121 upward; when the temperature drops, the deformable member 121 resets to its initial state. When the elastic force of the elastic component 123 is less than the deformation force of the deformable member 121, the blocking member 122 is in a closed position. When the elastic force of the elastic component 123 is greater than the deformation force of the deformable member 121, the blocking member 122 is in an open position. The opening and closing control device 1 of the utility model can avoid interference with the elastic component 123 when the deformable member 121 deforms with temperature by arranging the elastic component 123 and the deformable member 121 on opposite sides of the blocking member 122, thereby improving the reliability of the operation of the opening and closing control device 1.

[0053] For example, Fig. 9 As shown, the deformable member 121 is a butterfly-shaped bimetallic strip, and the middle part of the butterfly-shaped bimetallic strip is hollowed out to improve the ability of the deformable member 121 to deform with temperature. The deformable member 121 includes a main body 1211 and a deformable portion 1212, and the deformable portion 1212 is arranged in the middle of the main body 1211. The deformable portion 1212 can protrude upward relative to the main body 1211 when the temperature rises, and can also be reset when the temperature drops until it is in the same horizontal plane with the main body 1211.

[0054] In some embodiments, Figures 4 to 6 As shown, a fulcrum portion 1143 is provided in the housing 11, and the fulcrum portion 1143 is against the blocking member 122, and the end of the blocking member 122 away from the fulcrum portion 1143 has a moving portion 1221, and the other end of the blocking member 122 away from the fulcrum portion 1143 has an air blocking portion 1222, and the moving portion 1221 is provided between the elastic component 123 and the deformable component 121, and the elastic component 123 and the deformable component 121 can drive the moving portion 1221 to swing around the fulcrum portion 1143, so that the air blocking portion 1222 blocks and opens the exhaust channel 113. It can be understood that the blocking member 122 is set as a lever structure, and the elastic component 123 and the deformable component 121 jointly drive the moving portion 1221 to swing around the fulcrum portion 1143, so that the air blocking portion 1222 blocks and opens the exhaust channel 113, thereby facilitating the processing and manufacturing of the blocking member 122, and the structural design is simple and the cost is low.

[0055] like Figure 4 and Figure 5 As shown, when the temperature in the housing 11 rises, the deformable member 121 protrudes upward. When the deformation force of the deformable member 121 is greater than the elastic force of the elastic member 123, the deformable member 121 will push the moving portion 1221 to move upward. Since the blocking member 122 can swing around the fulcrum portion 1143, the air blocking portion 1222 moves downward to block the exhaust passage 113. Similarly, when the temperature in the housing 11 drops, the deformable member 121 gradually returns to its original position downward. When the deformation force of the deformable member 121 is less than the elastic force of the elastic member 123, the elastic member 123 will push the moving portion 1221 to move downward. Since the blocking member 122 can swing around the fulcrum portion 1143, the air blocking portion 1222 moves upward to open the exhaust passage 113.

[0056] Alternatively, if Figure 4 and Figure 5As shown, the elastic component 123 includes an elastic member 1231 and a reset plate 1232, the reset plate 1232 is arranged between the moving part 1221 and the elastic member 1231, and the elastic member 1231 presses the reset plate 1232 in the direction of the moving part 1221. For example. The elastic member 1231 is a cylindrical coil spring, one end of the elastic member 1231 is connected to the housing 11, and the other end of the elastic member 1231 is connected to the reset plate 1232. The opening and closing control device 1 of the utility model can be abutted against the moving part 1221 by the reset plate 1232 to increase the contact area between the elastic member 123 and the moving part 1221, thereby ensuring the reliability of the blocking member 122 when it swings.

[0057] Alternatively, if Figure 7 and Figure 8 As shown, the shell 11 is provided with an air inlet 1111 and an air outlet 1121 , and the air inlet 1111 includes a plurality of external air inlets 11111 , and the external air inlets 11111 and the air outlet 1121 are both in communication with the exhaust passage 113 .

[0058] 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.

[0059] In one example, if Figure 5 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).

[0060] There are multiple blocking members 122, each of which is provided with at least one air blocking portion 1222. The multiple air blocking portions 1222 correspond to the multiple external air inlets 11111 one by one, and the air blocking portions 1222 can block and open the external air inlets 11111. The opening and closing control device 1 of the utility model is provided with multiple external air inlets 11111, so as to improve the exhaust efficiency of the opening and closing control device 1 when the blocking member 122 is in the open position.

[0061] In one example, if Figure 4 , Figure 5 and Fig.10As shown, the blocking member 122 includes a first blocking member and a second blocking member, and the first blocking member includes a first movable portion 12211 and at least one first air blocking portion 12221. The second blocking member includes a second movable portion 12212 and at least one second air blocking portion 12222. In an embodiment of the present application, the first blocking member includes a first air blocking portion 12221, and the second blocking member includes two second air blocking portions 12222. One first air blocking portion 12221 and two second air blocking portions 12222 are arranged at equal intervals along the circumference of the shell 11. Correspondingly, there are three external air inlets 11111 and they correspond to the first air blocking portion 12221 and the second air blocking portion 12222, respectively.

[0062] like Fig.10 As shown, one of the first movable part 12211 and the second movable part 12212 is provided with a protrusion 1223, and the other is provided with a recessed part 1224, and the protrusion 1223 cooperates with the recessed part 1224. In the embodiment of the present application, the first movable part 12211 is provided with a circular recessed part 1224, and the second movable part 12212 is provided with a circular protrusion 1223. The protrusion 1223 and the recessed part 1224 cooperate along their radial direction and can be abutted against the reset plate 1232. The opening and closing control device 1 of the utility model is conducive to ensuring the synchronization of the first blocking member and the second blocking member when they move by adopting the above-mentioned structural arrangement, so that the opening and closing control device 1 has a better opening and closing effect.

[0063] Furthermore, if Figure 7 As shown, the air inlet 1111 also includes an inner air inlet 11112, which is separated from the exhaust channel 113 and is opposite to the deformable member 121. It can be understood that water vapor can directly contact the deformable member 121 through the inner air inlet 11112, thereby improving the sensitivity of the deformable member 121 to temperature changes, thereby improving the accuracy of the opening and closing control device 1 when opening and closing.

[0064] Alternatively, if Figures 4 to 6As shown, the housing 11 includes a housing body and a partition ring 114, the partition ring 114 is arranged in the housing body, the deformable member 121 is arranged in the partition ring 114, the outer wall of the partition ring 114 and the inner wall of the housing body define an exhaust passage 113, and on a projection plane orthogonal to the axial direction of the partition ring 114, the inner air inlet 11112 is located within the outer peripheral contour surrounded by the partition ring 114, and the outer air inlet 11111 is arranged between the outer peripheral contour of the partition ring 114 and the outer peripheral contour of the housing body. It can be understood that the partition ring 114 separates the inner air inlet 11112 and the outer air inlet 11111, and they are not connected to each other. The opening and closing control device 1 of the utility model is provided with a partition ring 114, and the inner air inlet 11112 and the outer air inlet 11111 adopt the above-mentioned structural arrangement, which can avoid the inner air inlet 11112 and the exhaust channel 113 from being connected, so as to prevent the problem of steam leakage from the inner air inlet 11112 when the opening and closing control device 1 is in the closed position.

[0065] In one example, if Figures 3 to 6 As shown, the shell body includes a base 111 and a top cover 112, an inner air inlet 11112 and an outer air inlet 11111 are provided on the base 111, an air outlet 1121 is provided on the top cover 112, and the partition ring 114 includes a first annular portion 1141 and a second annular portion 1142, the first annular portion 1141 is provided on the base 111, and the second annular portion 1142 is provided on the top cover 112, for example, the first annular portion 1141 is integrally formed with the base 111, and the second annular portion 1142 is integrally formed with the top cover 112, and the first annular portion 1141 and the second annular portion 1142 are snap-fitted in the up and down directions.

[0066] like Figure 4 and Figure 5 As shown, the fulcrum portion 1143 is a support hole, which is formed between the first annular portion 1141 and the second annular portion 1142, and the blocking member 122 is inserted through the support hole. It can be understood that the blocking member 122 can swing using the edge of the support hole as a fulcrum, thereby facilitating the processing and manufacturing of the housing 11, and the structural design is simple and the cost is low.

[0067] In other embodiments, Fig.12 and Fig.13 As shown, the fulcrum portion 1143 can also be directly formed on the inner wall of the shell 11 to facilitate the processing and manufacturing of the opening and closing control device 1.

[0068] Alternatively, if Fig.14 and Fig.15As shown, there are multiple deformable members 121, and the multiple deformable members 121 are stacked and arranged along the thickness direction. For example, adjacent deformable members 121 can be separated by a partition 124. It can be understood that the opening and closing control device 1 of the utility model can adjust the number of deformable members 121 according to the elastic force of the elastic component 123, thereby facilitating the adjustment of the overall deformation force of the deformable member 121, and the use effect is better.

[0069] 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 an opening and closing control device 1. 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.

[0070] 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 .

[0071] According to the cooking utensil of the embodiment of the utility model, since the deformable member 121 can be deformed with the change of temperature, when the cooking utensil is working, the shell 11 can be heated to deform the deformable member 121, so that the deformable member 121 and the elastic member 123 cooperate with each other to make the blocking member 122 open and close the exhaust passage 113. Since the area of ​​the exhaust passage 113 blocked by the blocking member 122 is positively correlated with the temperature in the shell 11, the opening and closing control device 1 can gradually increase the area of ​​the exhaust passage 113 blocked by the blocking member 122 as the temperature rises, so as to reduce the actual flow area of ​​the exhaust passage 113, that is, reduce the flow rate of steam in the exhaust passage 113; the opening and closing control device 1 can gradually reduce the area of ​​the exhaust passage 113 blocked by the blocking member 122 as the temperature decreases, so as to increase the actual flow area of ​​the exhaust passage 113, that is, increase the flow rate of steam in the exhaust passage 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.

[0072] It can be understood that the cooking utensil of the embodiment of the utility model utilizes the characteristics of the heat-receiving protrusion of the butterfly-shaped bimetallic strip (deformable part 121), 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 sealing and normal pressure cooking states of the cooking cavity 21, realizing the overflow prevention technology of the steaming function and the purpose of adjusting the taste of food for the frying, roasting and frying functions.

[0073] 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.

[0074] 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.

[0075] 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.

[0076] 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.

[0077] 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.

[0078] 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.

[0079] 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), It is 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 deformable member (121) that deforms with temperature changes, a blocking member (122) and an elastic member (123), the blocking member (122) and the elastic member (123) both being connected to the deformable member (121), the deformable member (121) driving the blocking member (122) to move through its deformation and together with the elastic member (123) to block and open the exhaust passage (113), the area of ​​the exhaust passage (113) blocked by the blocking member (122) being positively correlated with the temperature in the housing (11).

2. The opening and closing control device (1) according to claim 1, It is 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 deformable member (121) has an initial state in which the temperature is lower than a preset value and a deformed state in which the temperature is higher than the preset value; when the deformable member (121) is in the initial state, the elastic force of the elastic member (123) is greater than the deformation force of the deformable member (121) and the blocking member (122) is in the open position; when the deformable member (121) is in the deformed state, the elastic force of the elastic member (123) is less than the deformation force of the deformable member (121) and the blocking member (122) is in the closed position.

3. The opening and closing control device (1) according to claim 2, It is characterized in that The elastic component (123) and the deformable component (121) are respectively arranged on opposite sides of the blocking component (122), and the elastic component (123) presses the blocking component (122) in the direction of the deformable component (121).

4. The opening and closing control device (1) according to claim 2, It is characterized in that A fulcrum portion (1143) is provided in the shell (11), and the fulcrum portion (1143) is abutted against the blocking member (122); one end of the blocking member (122) away from the fulcrum portion (1143) has a movable portion (1221), and the other end of the blocking member (122) away from the fulcrum portion (1143) has an air blocking portion (1222); the movable portion (1221) is provided between the elastic member (123) and the deformable member (121); the elastic member (123) and the deformable member (121) can drive the movable portion (1221) to swing around the fulcrum portion (1143), so that the air blocking portion (1222) blocks and opens the exhaust passage (113).

5. The opening and closing control device (1) according to claim 4, It is characterized in that The elastic component (123) comprises an elastic member (1231) and a reset plate (1232); the reset plate (1232) is arranged between the moving portion (1221) and the elastic member (1231); the elastic member (1231) presses the reset plate (1232) toward the moving portion (1221).

6. The opening and closing control device (1) according to claim 4, It is characterized in that The shell (11) is provided with an air inlet (1111) and an air outlet (1121); the air inlet (1111) includes a plurality of external air inlets (11111); the external air inlet (11111) and the air outlet (1121) are both connected to the exhaust passage (113); there are a plurality of blocking members (122); each of the blocking members (122) is provided with at least one air blocking portion (1222); the plurality of air blocking portions (1222) correspond one-to-one to the plurality of external air inlets (11111); and the air blocking portions (1222) can block and open the external air inlets (11111).

7. The opening and closing control device (1) according to claim 6, It is characterized in that The blocking member (122) includes a first blocking member and a second blocking member, the first blocking member includes a first movable portion (12211) and at least one first air blocking portion (12221), the second blocking member includes a second movable portion (12212) and at least one second air blocking portion (12222), one of the first movable portion (12211) and the second movable portion (12212) is provided with a protruding portion (1223), and the other is provided with a recessed portion (1224), and the protruding portion (1223) cooperates with the recessed portion (1224).

8. The opening and closing control device (1) according to claim 6, It is characterized in that The air inlet (1111) further comprises an inner air inlet (11112), wherein the inner air inlet (11112) is spaced apart from the exhaust passage (113), and the inner air inlet (11112) is opposite to the deformation member (121).

9. The opening and closing control device (1) according to claim 8, It is characterized in that The shell (11) comprises a shell body and a partition ring (114), wherein the partition ring (114) is arranged in the shell body, and the deformable member (121) is arranged in the partition ring (114); the outer wall of the partition ring (114) and the inner wall of the shell body define the exhaust passage (113); on a projection surface orthogonal to the axial direction of the partition ring (114), the inner air inlet (11112) is located within an outer peripheral contour surrounded by the partition ring (114), and the outer air inlet (11111) is arranged between the outer peripheral contour of the partition ring (114) and the outer peripheral contour of the shell body.

10. The opening and closing control device (1) according to claim 9, It is characterized in that The shell body comprises a base (111) and a top cover (112); the inner air inlet (11112) and the outer air inlet (11111) are arranged on the base (111); the air outlet (1121) is arranged on the top cover (112); the partition ring (114) comprises a first annular portion (1141) and a second annular portion (1142); the first annular portion (1141) is arranged on the base (111); the second annular portion (1142) is arranged on the top cover (112); the first annular portion (1141) and the second annular portion (1142) cooperate with each other; the fulcrum portion (1143) is a branch hole; the branch hole is formed between the first annular portion (1141) and the second annular portion (1142); and the blocking member (122) is passed through the branch hole.

11. The opening and closing control device (1) according to any one of claims 1 to 10, It is characterized in that There are a plurality of the deformable members (121), and the plurality of the deformable members (121) are stacked and arranged along the thickness direction thereof.

12. A cooking utensil, It is 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 10; 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).

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