A cooking liner structure and an oven having the same

Abstract

The present invention relates to a cooking liner structure and an oven, comprising an liner, a hot air baffle with an air inlet and an air outlet is arranged at the rear side of the inner cavity of the liner, a hot air chamber is formed between the hot air baffle and the back plate of the liner, a hot air blower is installed in the hot air chamber, a heating pipe is arranged around the outer periphery of the fan blades of the hot air blower, the air inlet area of ​​the air inlet is larger than the total air outlet area of ​​the air outlet, and the air outlet comprises a first air outlet located at the upper left part of the hot air baffle and a second air outlet located at the lower right part of the hot air baffle, the sum of the air outlet volume of the first air outlet and the second air outlet is larger than 50% of the total air outlet volume of the air outlet, and the air outlet volume of the first air outlet is larger than the air outlet volume of the second air outlet. The present invention can increase the air inlet volume of the hot air chamber, thereby meeting the air outlet volume required for cooking, meeting the cooking heat required for the liner on the basis of only one heating pipe, and promoting the uniformity of the temperature field in the liner, thereby improving the cooking effect of the liner. In addition, the present invention can improve cooking efficiency and cooking effect.

Description

Technical Field

[0001] The invention relates to the field of cooking devices, and in particular to a cooking liner structure and an oven with the structure. Background Art

[0002] The inner pot of a cooking device with a baking function such as an oven is generally provided with a hot air baffle having an air inlet and an air outlet, and the back plate of the inner pot and the hot air baffle form a hot air chamber, in which a hot air blower and a heating pipe are respectively provided, and the heating pipe is in a ring shape and is arranged around the outer periphery of the fan blade of the hot air blower. In this way, the hot air blower rotates in the hot air chamber to generate negative pressure, and the airflow in the inner pot enters the hot air chamber under the action of the negative pressure and is heated, and the heated hot air flows back into the inner pot from the air outlet of the hot air baffle under the action of the centrifugal force of the hot air blower, so that the hot air can heat the food in the inner pot.

[0003] The inner pot of a conventional oven is provided with an upper heating tube, a middle heating tube and a lower heating tube, respectively. The heating tube in the hot air chamber is the middle heating tube, and the provision of three heating tubes at the same time makes the production cost of the conventional oven high. In addition, the air inlet and air outlet of the existing hot air baffle are large in area, and the speed of the hot air blower is fixed, resulting in a small air volume in the inner pot of the conventional oven during baking. Moreover, since the air volume cannot be adjusted, the expected cooking effect cannot be achieved when baking food that requires a large air volume. Summary of the invention

[0004] The first technical problem to be solved by the present invention is to provide a cooking liner structure with a simple structure, low production cost, large air volume and good cooking effect in view of the prior art.

[0005] The second technical problem to be solved by the present invention is to provide a cooking pot structure with adjustable air volume in view of the prior art.

[0006] The third technical problem to be solved by the present invention is to provide a cooking pot structure with adaptive and adjustable air volume in view of the prior art.

[0007] The fourth technical problem to be solved by the present invention is to provide an oven with the above-mentioned cooking liner structure in view of the prior art.

[0008] The technical solution adopted by the present invention to solve at least one of the above-mentioned technical problems is: a cooking liner structure, including an liner, a hot air baffle with an air inlet and an air outlet is arranged on the rear side of the inner cavity of the liner, a hot air chamber is formed between the hot air baffle and the back plate of the liner, a hot air blower is installed in the hot air chamber, and a heating tube is arranged around the outer periphery of the fan blades of the hot air blower, characterized in that the air inlet area of ​​the air inlet is larger than the total air outlet area of ​​the air outlet, and the above-mentioned air outlet includes a first air outlet located at the upper left part of the hot air baffle and a second air outlet located at the lower right part of the hot air baffle, the sum of the air outlet volumes of the first air outlet and the second air outlet is larger than 50% of the total air outlet volume, and the air outlet volume of the first air outlet is larger than the air outlet volume of the second air outlet.

[0009] Furthermore, the first air outlet includes a first upper air outlet, a second upper air outlet and a third upper air outlet, wherein the first upper air outlet is formed by the upper edge of the hot air baffle being recessed inward, the third upper air outlet is located at the lowest point of the first air outlet, the second upper air outlet is located between the first upper air outlet and the third upper air outlet and below the first upper air outlet, and the air outlet area of ​​the first upper air outlet is larger than the air outlet area of ​​the second upper air outlet, and the air outlet area of ​​the second upper air outlet is larger than the air outlet area of ​​the third upper air outlet. In this way, the air outlet of the first upper air outlet can blow toward the top of the inner liner, thereby replenishing the heat at the top of the inner liner, while the air outlet of the second upper air outlet flows forward to replenish the heat at the upper part of the inner liner, and at the same time, the air outlet of the third upper air outlet flows forward to accelerate the flow of the air outlet of the second upper air outlet.

[0010] Furthermore, the first upper air outlet is a long strip-shaped notch, so that the air outlet of the first upper air outlet can flow upward along the rear inner surface of the inner tank, and then can be better blown toward the inner top surface of the inner tank. The above-mentioned second upper air outlet is an array composed of long strip-shaped first upper air outlet holes extending left and right, so that the air outlet of the second upper air outlet can be increased and the temperature field uniformity of the upper part of the inner tank along the left and right directions can be promoted, and the third upper air outlet is a square array composed of circular second upper air outlet holes and extending left and right, and the above-mentioned first upper air outlet is two arranged in parallel on the left and right, and the above-mentioned second upper air outlet is arranged opposite to the first upper air outlet located on the outside up and down, and the outer end of the above-mentioned third upper air outlet protrudes outward from the above-mentioned second upper air outlet, so that the air outlet of the third upper air outlet can better promote the acceleration of the air outlet of the second upper air outlet.

[0011] Furthermore, the second air outlet includes a first lower air outlet and a second lower air outlet, the first lower air outlet is located above the second lower air outlet, and the inner side end of the second lower air outlet protrudes outward from the first lower air outlet. The air outlet of the second lower air outlet blows toward most of the bottom area of ​​the baking pan, thereby ensuring the required heat of the bottom of the baking pan without the traditional bottom heating pipe, and the air outlet of the first lower air outlet blows toward a wider area of ​​the bottom of the baking pan than the second lower air outlet, and has a speed-up effect on the air outlet of the second air outlet.

[0012] Furthermore, the first lower air outlet is a square array composed of circular first lower air outlet holes extending left and right, and the second lower air outlet is an array composed of long strip-shaped second lower sub-air outlet holes extending left and right, thereby ensuring the air outlet of the second lower air outlet to meet the cooking heat required at the bottom of the baking tray.

[0013] Furthermore, the air outlet also includes a third air outlet located at the upper right part of the hot air baffle. The air from the third air outlet flows forward toward the door body, collides with the inner surface of the door body and is reflected to the top surface of the inner tank, thereby assisting the first air outlet and supplementing the airflow at the top of the inner tank.

[0014] Furthermore, the third air outlet is an array of circular third air outlet holes, so that the air outlet of the third air outlet covers a wider area and flows faster on the basis of ensuring the air outlet area of ​​the third air outlet.

[0015] Furthermore, the air outlet further includes a fourth air outlet located below the air inlet. The air outlet of the fourth air outlet can blow to the area below the baking tray, thereby supplementing the air outlet of the second air outlet to further meet the heat required by the bottom of the baking tray.

[0016] Furthermore, the fourth air outlet is an array of fourth air outlet holes extending left and right, so as to cover more areas of the bottom of the baking pan in the left and right directions, thereby promoting the uniformity of the temperature field at the bottom of the baking pan.

[0017] Furthermore, the air outlet further comprises a fifth air outlet located at the lower left portion of the hot air baffle, so that the air outlet through the fifth air outlet can compensate the airflow to the left corner area of ​​the baking tray.

[0018] Furthermore, the air outlet further comprises a sixth air outlet located at the lower middle portion of the left side of the hot air baffle, and the sixth air outlet is located above the fifth air outlet, so that the air outlet of the sixth air outlet can compensate the airflow in the left area above the baking tray.

[0019] Furthermore, the fifth air outlet is a square array composed of circular fifth air outlet holes and extending left and right, and the sixth air outlet is composed of circular sixth air outlet holes evenly spaced along the left and right directions, thereby increasing the air outlet speeds of the fifth air outlet and the sixth air outlet, and when the baking tray is placed on the second layer, the sixth air outlet is exposed above the baking tray, thereby avoiding momentum loss of the air outlet from the sixth air outlet and ensuring the heat required for the left area above the oven.

[0020] Furthermore, the air outlet also includes a seventh air outlet formed by the left edge of the hot air baffle being recessed inwardly along the height direction and an eighth air outlet formed by the right edge of the hot air baffle being recessed inwardly along the height direction, wherein the seventh air outlet is located between the third upper air outlet and the fifth air outlet, and the sixth air outlet is opposite to the lower end of the seventh air outlet, and the eighth air outlet is located between the third air outlet and the second air outlet, and the air outlet area of ​​the seventh air outlet is greater than the air outlet area of ​​the eighth air outlet. The air outlets of the seventh air outlet and the eighth air outlet flow along the left inner surface and the right inner surface of the inner pot, respectively, and the air outlets of the two are blown to the left and right sides of the inner pot, respectively, thereby compensating for the airflow required by the left and right areas of the baking tray.

[0021] Furthermore, the ratio of the air inlet area of ​​the air inlet to the total air outlet area of ​​the air outlet is 1.2 to 1.5, and the sum of the air volume of the first air outlet and the second air outlet is greater than 60% of the total air volume of the air outlet, thereby better increasing the air volume of the hot air chamber and better meeting the needs of heating and cooking the upper surface and lower part of the food.

[0022] Furthermore, the air inlet is a circular array formed by evenly arranged long strip-shaped air inlet holes extending left and right, thereby further increasing the air intake volume of the air inlet.

[0023] Furthermore, an adjustment plate is vertically attached to the rear surface of the hot air baffle, and an air inlet corresponding to the air inlet, a first air outlet corresponding to the first air outlet, and a second air outlet corresponding to the second air outlet are respectively arranged on the adjustment plate, and the adjustment plate can rotate relative to the rear surface of the hot air baffle with the central axis of the air inlet as the center and has at least two states:

[0024] In the first state, the air inlet and the air outlet overlap front to back, the first air outlet overlaps front to back, and the second air outlet overlaps front to back, and the wind speed of the hot air blower is the maximum in this state;

[0025] In the second state, the air inlet and outlet are staggered front to back, the first air outlet is staggered front to back and the second air outlet is staggered front to back, and the wind speed of the hot air blower is the minimum in this state. According to the rotation speed of the hot air blower, the actual air inlet area of ​​the air inlet and the actual air outlet areas of the first and second air outlets can be adjusted at the same time, thereby realizing the adjustment of the air volume in the inner pot. In this way, when in a cooking mode requiring a smaller air volume, the rotation speed of the hot air blower is at a low speed, and the adjustment plate is in the second state; and when in a cooking mode requiring a larger air volume, the rotation speed of the hot air blower is at a high speed, and the adjustment plate is in the second state.

[0026] Furthermore, the adjustment plate includes a circular main board, the air inlet port is arranged on the main board with the center of the main board as the center, and the upper left end and the lower right end of the adjustment plate are respectively extended outward with a first extension plate and a second extension plate, the first air outlet port and the second air outlet port are respectively opened on the first extension plate and the second extension plate, and the junction of the first extension plate and the second extension plate with the main board is respectively provided with a first rotation slot and a second rotation slot extending along the rotation direction of the adjustment plate, and the rear surface of the hot air baffle is respectively fixed with a first rotating shaft and a second rotating shaft extending along the front-to-back direction, the first rotating shaft and the second rotating shaft are respectively penetrated in the first rotating slot and the second rotating slot, and each rotating shaft can slide back and forth along the corresponding rotating slot, and when the adjustment plate is in the first state and the second state, each rotating shaft is respectively abutted against the corresponding end of the corresponding rotating slot. Thereby, the rotation of the adjustment plate relative to the hot air baffle can be better realized, and the relative movement between the air inlet and the air inlet, as well as the relative movement between the first air outlet and the second air outlet respectively can be better realized during the rotation of the adjustment plate, and the smooth rotation of the adjustment plate can be realized through the relative sliding of each rotating shaft and the corresponding rotating groove, and the corresponding end of each rotating shaft and the corresponding rotating groove can abut against each other, so that the adjustment plate can be stably positioned in the above-mentioned first state or second state.

[0027] Furthermore, the first extension plate and the second extension plate extend in the left and right directions respectively, and the above-mentioned first air outlet includes a first branch air outlet and a second branch air outlet. In the above-mentioned first state, the first branch air outlet corresponds to the second upper branch air outlet and the second branch air outlet corresponds to the third upper branch air outlet, so as to better adjust the air volume of the first air outlet and the second air outlet.

[0028] Furthermore, baffles perpendicular to the main board are fixed to the left and right ends of the main board of the adjustment plate, respectively. Each baffle is located on both sides of the air inlet and vent, and the shape of each baffle is an arc centered on the center of the main board. The centrifugal force of the airflow on the hot air blower blades can act on the baffles on both sides. In this way, when the wind speed of the hot air blower is high, the air pressure acting on the baffles on both sides is high, which can play a certain positioning role on the adjustment plate, so that the adjustment plate can be more stably positioned in the first state mentioned above. When the wind speed of the hot air blower decreases, the air pressure acting on the baffles on both sides decreases, thereby promoting the rotation of the adjustment plate relative to the hot air baffle.

[0029] Furthermore, the connecting line between the centers of the two baffles and the side edges of the main board is offset from the center of the main board. In this way, the two baffles are eccentrically arranged relative to the center of the main board, and when the air pressure acting on the baffles on both sides decreases, the baffles on both sides can better drive the adjustment plate to rotate.

[0030] Furthermore, it also includes torsion springs corresponding to the first rotating shaft and the second rotating shaft, one end of each torsion spring is connected to the corresponding rotating shaft, and the other end is connected to the corresponding extension plate, each torsion spring makes the adjustment plate have a tendency to rotate in the opposite direction to the rotation direction of the hot air blower. In this way, when the rotation speed of the hot air blower is relatively high, the torsion force applied to the adjustment plate by the hot air blower is balanced with the torsion force applied to the adjustment plate by each torsion spring, and when the rotation speed of the hot air blower decreases, each torsion spring drives the adjustment plate to rotate in the opposite direction to the rotation direction of the hot air blower, so that the adjustment plate is in the second state.

[0031] A technical solution adopted to further solve the fourth technical problem: an oven having the cooking liner structure as described above.

[0032] Compared with the prior art, the advantages of the present invention are that only one heating tube is arranged in the hot air chamber of the inner pot of the present invention, thereby simplifying the structure of the cooking inner pot structure and reducing the production cost. In addition, the air inlet area of ​​the air inlet is larger than the total air outlet area of ​​the air outlet, thereby increasing the air inlet volume of the hot air chamber, thereby meeting the air outlet volume required for cooking, meeting the cooking heat required by the inner pot on the basis of only one heating tube, and promoting the uniformity of the temperature field in the inner pot, thereby improving the cooking effect of the inner pot. In addition, in the present invention, the sum of the air outlets of the first air outlet and the second air outlet is greater than 50% of the total air outlet volume, thereby meeting the needs of heating and cooking the upper surface and the lower part of the food, improving the cooking efficiency and cooking effect, and the air outlet of the first air outlet is greater than the air outlet of the second air outlet, so that the heat at the top of the inner pot can be supplemented by the air outlet of the first air outlet, further promoting the uniformity of the temperature field of the inner pot, and further improving the cooking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a cross-sectional view of an oven according to an embodiment of the present invention;

[0034] Figure 2 It is a schematic diagram of the structure of the cooking pot in an embodiment of the present invention;

[0035] Figure 3 This is a partial structural diagram of the cooking pot structure in an embodiment of the present invention (under a high air volume state);

[0036] Figure 4 It is a partial structural schematic diagram of the cooking pot structure in an embodiment of the present invention (under low air volume state);

[0037] Figure 5 This is a schematic diagram of the structure of a hot air baffle in an embodiment of the present invention;

[0038] Figure 6 Schematic diagram of the structure of the adjustment plate in the embodiment of the present invention. DETAILED DESCRIPTION

[0039] The present invention is further described in detail below with reference to the accompanying drawings.

[0040] like Figures 1 to 6 As shown, an oven includes a cooking liner structure, the cooking liner structure includes an liner 1, a hot air baffle 2 with an air inlet 21 and an air outlet is arranged at the rear side of the inner cavity of the liner 1, a hot air chamber 20 is formed between the hot air baffle 2 and the back plate of the liner 1, a hot air blower 3 is installed in the hot air chamber 20, and a heating pipe 4 is arranged around the outer periphery of the fan blade 31 of the hot air blower 3. In the liner 1 of the present invention, the heating pipe 4 is only arranged in the hot air chamber 20, and no heating pipe is arranged on the inner top surface of the liner 1 and the bottom of the liner 1, so that the structure of the cooking liner structure is simplified and the production cost is reduced.

[0041] Furthermore, the air inlet area of ​​the air inlet 21 is larger than the total air outlet area of ​​the air outlet, and the air outlet includes a first air outlet 22 located at the upper left portion of the hot air baffle 2 and a second air outlet 23 located at the lower right portion of the hot air baffle 2, the sum of the air volume of the first air outlet 22 and the second air outlet 23 is larger than 50% of the total air volume of the air outlet, and the air volume of the first air outlet 22 is larger than the air volume of the second air outlet 23. In this way, the air inlet area of ​​the air inlet 21 is larger than the total air outlet area of ​​the air outlet, thereby increasing the air inlet volume of the hot air chamber 20, thereby meeting the air volume required for cooking, meeting the cooking heat required by the inner pot 1 on the basis of only one heating tube 4, and promoting the uniformity of the temperature field in the inner pot 1, thereby improving the cooking effect of the inner pot 1. In addition, in the present invention, the sum of the air volume of the first air outlet 22 and the second air outlet 23 is greater than 50% of the total air volume of the air outlet, thereby meeting the needs of heating and cooking the upper surface and the lower part of the food, and improving the cooking efficiency and cooking effect. The air volume of the first air outlet 22 is greater than the air volume of the second air outlet 23, so that the air outlet of the first air outlet 22 can replenish the heat on the top of the inner pot 1, further promote the uniformity of the temperature field of the inner pot 1, and further improve the cooking effect. In this embodiment, preferably, the ratio of the air inlet area of ​​the air inlet 21 to the total air outlet area of ​​the air outlet is 1.2 to 1.5, and the sum of the air volume of the first air outlet 22 and the second air outlet 23 is greater than 60% of the total air volume of the air outlet, thereby better increasing the air volume of the hot air chamber 20 and better meeting the needs of heating and cooking the upper surface and the lower part of the food. In this embodiment, the air inlet 21 is a circular array of long strip-shaped air inlet holes 211 extending left and right and evenly arranged, so as to further increase the air intake volume of the air inlet 21 .

[0042] In this embodiment, the first air outlet 22 includes a first upper air outlet 221, a second upper air outlet 222 and a third upper air outlet 223, wherein the first upper air outlet 221 is formed by the upper edge of the hot air baffle 2 being recessed inward, the third upper air outlet 223 is located at the lowest point of the first air outlet 22, the second upper air outlet 222 is located between the first upper air outlet 221 and the third upper air outlet 223 and below the first upper air outlet 221, and the air outlet area of ​​the first upper air outlet 221 is greater than the air outlet area of ​​the second upper air outlet 222, and the air outlet area of ​​the second upper air outlet 222 is greater than the air outlet area of ​​the third upper air outlet 223. In this way, the air from the first upper air outlet 221 can blow toward the top of the inner liner 1, thereby replenishing the heat at the top of the inner liner 1, while the air from the second upper air outlet 222 flows forward to replenish the heat at the upper part of the inner liner 1, and at the same time, the air from the third upper air outlet 223 flows forward, thereby accelerating the air flow from the second upper air outlet 222. Further, the first upper air outlet 221 is a long strip-shaped notch, so that the air from the first upper air outlet 221 can flow upward along the rear inner surface of the inner liner 1, and thus can be better blown toward the inner top surface of the inner liner 1. The second upper air outlet 222 is an array composed of long strips of first upper air outlet holes 2221 extending left and right, thereby increasing the air volume of the second upper air outlet 222 and promoting the uniformity of the temperature field at the upper part of the inner liner 1 along the left and right directions, while the third upper air outlet 22 3 is a square array consisting of circular second upper divided air outlets 2231 and extending left and right, and the first upper divided air outlets 221 are arranged in two rows in parallel, the second upper divided air outlets 222 are arranged vertically opposite to the first upper divided air outlets 221 located on the outside, and the outer end of the third upper divided air outlet 223 protrudes outward from the second upper divided air outlet 222, so that the air outlet of the third upper divided air outlet 223 can better promote the speed of the air outlet of the second upper divided air outlet 222. Specifically, the second upper divided air outlets 222 are arranged in two rows in parallel, and each row has three first upper divided air outlets 2221 evenly arranged at intervals from top to bottom, and the third upper divided air outlets 223 are arranged in two rows in parallel, and each row has six second upper divided air outlets 2231 evenly arranged at intervals from top to bottom. The design of the circular air outlet holes in the present invention can speed up the air flow from the corresponding air outlet to a certain extent, while the design of the long strip air outlet holes extending left and right can increase the air flow from the corresponding air outlet and promote the uniformity of the temperature field on the left and right sides of the inner tank 1.

[0043] The second air outlet 23 includes a first lower air outlet 231 and a second lower air outlet 232. The first lower air outlet 231 is located above the second lower air outlet 232, and the inner side end of the second lower air outlet 232 protrudes outward from the first lower air outlet 231. The air from the second lower air outlet 232 blows toward most of the bottom of the baking pan, thereby ensuring the required heat at the bottom of the baking pan without the traditional bottom heating tube 4, while the air from the first lower air outlet 231 blows toward a wider area at the bottom of the baking pan than the second lower air outlet 232, and has a speed-up effect on the air from the second air outlet 23. Further, the first lower air outlet 231 is a square array composed of circular first lower air outlet holes 2311 and extending left and right, while the second lower air outlet 232 is an array composed of long strip-shaped second lower air outlet holes 2321 extending left and right, thereby ensuring the air volume of the second lower air outlet 232 to meet the cooking heat required at the bottom of the baking pan. Specifically, in this embodiment, the above-mentioned first lower air outlet 231 is arranged in two rows with upper and lower intervals, and each row has nine second upper divided air outlet holes 2231 evenly spaced from left to right, and the above-mentioned second lower air outlet 232 is arranged in three columns with upper and lower intervals, among which the innermost column has two second lower divided air outlet holes 2321 and protrudes outward from the above-mentioned first lower air outlet 231, and the remaining two columns respectively have three second lower divided air outlet holes 2321 evenly spaced from upper and lower.

[0044] Furthermore, the above-mentioned air outlets also include a third air outlet 24, a fourth air outlet 25, a fifth air outlet 26, a sixth air outlet 27, a seventh air outlet 28 and an eighth air outlet 29. Among them, the third air outlet 24 is located at the upper right part of the hot air baffle 2, and the air outlet of the third air outlet 24 flows forward to the door body, collides with the inner surface of the door body and reflects to the inner top surface of the inner tank 1, thereby assisting the above-mentioned first air outlet 22 to supplement the airflow at the top of the inner tank 1. Specifically, the third air outlet 24 is an array composed of circular third air outlet holes 241, so that the area to which the air outlet of the third air outlet 24 blows is wider and the flow speed is faster on the basis of ensuring the air outlet area of ​​the third air outlet 24. The fourth air outlet 25 is located below the air inlet 21, and the air outlet of the fourth air outlet 25 can blow to the lower area of ​​the baking tray, so as to supplement the air outlet of the second air outlet 23 and further meet the heat required at the bottom of the baking tray. Specifically, the fourth air outlet 25 is an array composed of fourth air outlet holes 251 extending left and right, so that it can cover more areas of the bottom of the baking pan in the left and right directions, thereby promoting the uniformity of the temperature field at the bottom of the baking pan.

[0045] The fifth air outlet 26 is located at the lower left part of the hot air baffle 2, so that the air outlet of the fifth air outlet 26 can compensate the airflow in the left corner area of ​​the baking tray. The sixth air outlet 27 is located at the lower middle part of the left side of the hot air baffle 2, and the sixth air outlet 27 is located above the fifth air outlet 26, so that the air outlet of the sixth air outlet 27 can compensate the airflow in the left area above the baking tray. The fifth air outlet 26 is a square array composed of circular fifth air outlet holes 261 and extending left and right, and the sixth air outlet 27 is composed of circular sixth air outlet holes 271 arranged at intervals along the left and right directions, so as to increase the air outlet speed of the fifth air outlet 26 and the sixth air outlet 27, and when the baking tray is placed on the second layer, the sixth air outlet 27 is exposed above the baking tray, so as to avoid the momentum loss of the air outlet of the sixth air outlet 27 and ensure the heat required for the left area above the oven.

[0046] The seventh air outlet 28 is formed by the left edge of the hot air baffle 2 being recessed inwardly along the height direction, and the eighth air outlet 29 is formed by the right edge of the hot air baffle 2 being recessed inwardly along the height direction. The seventh air outlet 28 is located between the third upper air outlet 223 and the fifth air outlet 26, and the sixth air outlet 27 is opposite to the lower end of the seventh air outlet 28, and the eighth air outlet 29 is located between the third air outlet 24 and the second air outlet 23, and the air outlet area of ​​the seventh air outlet 28 is larger than the air outlet area of ​​the eighth air outlet 29. The air outlets of the seventh air outlet 28 and the eighth air outlet 29 flow along the left inner surface and the right inner surface of the inner pot 1 respectively, and the air outlets of the two are blown to the left and right sides of the inner pot 1 respectively, thereby compensating for the airflow required in the left and right areas of the baking tray. It can be seen that among the air outlets of the hot air baffle 2 of the present invention, only the first upper air outlet 221 of the first air outlet 22, the seventh air outlet 28 and the eighth air outlet 29 are formed by the inward depression of the side edge of the hot air baffle 2, and the rest are opened on the front side of the hot air baffle 2, thereby ensuring the strength of the hot air baffle 2.

[0047] Further, in the present invention, an adjustment plate 5 is vertically attached to the rear surface of the hot air baffle 2, and an air inlet vent 53 corresponding to the air inlet 21, a first air outlet vent 54 corresponding to the first air outlet 22, and a second air outlet vent 55 corresponding to the second air outlet 23 are respectively arranged on the adjustment plate 5, and the adjustment plate 5 can rotate relative to the rear surface of the hot air baffle 2 with the central axis of the air inlet 21 as the center and has at least two states:

[0048] In the first state, the air inlet vent 53 overlaps with the air inlet 21 front to back, the first air outlet vent 54 overlaps with the first air outlet 22 front to back, and the second air outlet vent 55 overlaps with the second air outlet 23 front to back, and the wind speed of the hot air blower 3 is the maximum in this state;

[0049] In the second state, the air inlet 53 is staggered with the air inlet 21, the first air outlet 54 is staggered with the first air outlet 22, and the second air outlet 55 is staggered with the second air outlet 23, and the wind speed of the hot air blower 3 is the minimum in this state. According to the rotation speed of the hot air blower 3, the actual air inlet area of ​​the air inlet 21 and the actual air outlet areas of the first air outlet 22 and the second air outlet 23 can be adjusted at the same time, thereby adjusting the air volume in the inner pot 1 and improving the cooking effect of the oven. In this way, when the cooking mode requires a small air volume, the rotation speed of the hot air blower 3 is at a low speed, and the adjustment plate 5 is in the second state; when the cooking mode requires a large air volume, the rotation speed of the hot air blower 3 is at a high speed, and the adjustment plate 5 is in the second state.

[0050] Specifically, in the present embodiment, the adjusting plate 5 comprises a circular main board 50, the air inlet vent 53 is arranged on the main board 50 with the center of the main board 50 as the center, and the upper left end and the lower right end of the adjusting plate 5 are respectively extended outward with a first extension plate 51 and a second extension plate 52, the first air outlet vent 54 and the second air outlet vent 55 are respectively provided on the first extension plate 51 and the second extension plate 52, and the first rotation slot 57 and the second rotation slot 56 extending along the rotation direction of the adjusting plate 5 are respectively provided at the junction of the first extension plate 51 and the second extension plate 52 with the main board 50, and the first rotating shaft 61 and the second rotating shaft 62 extending along the front-back direction are respectively fixed on the rear surface of the hot air baffle 2, and the first rotating shaft 61 and the second rotating shaft 62 are respectively penetrated through the first rotating slot 57 and the second rotating slot 56. In the second rotating groove 56, each rotating shaft can slide back and forth along the corresponding rotating groove respectively. When the above-mentioned adjustment plate 5 is in the above-mentioned first state and the second state, each rotating shaft respectively abuts against the corresponding end of the corresponding rotating groove, so as to better realize the rotation of the adjustment plate 5 relative to the hot air baffle 2, and during the rotation of the adjustment plate 5, the relative movement between the air inlet 53 and the air inlet 21, and the relative movement between the first air outlet 54 and the second air outlet 55 and the first air outlet 22 and the second air outlet 23 respectively can be better realized, and the relative sliding of each rotating shaft and the corresponding rotating groove can realize the smooth rotation of the adjustment plate 5, and the abutment of each rotating shaft and the corresponding end of the corresponding rotating groove can make the adjustment plate 5 stably positioned in the above-mentioned first state or the second state. Preferably, the first extension plate 51 and the second extension plate 52 extend in the left-right direction respectively, and the first air outlet vent 54 includes a first branch air outlet vent 541 and a second branch air outlet vent 542. In the first state, the first branch air outlet vent 541 corresponds to the second upper branch air outlet 222, and the second branch air outlet vent 542 corresponds to the third upper branch air outlet 223. In this embodiment, the first branch air outlet vent 541 is a square array composed of first branch air outlet holes 5411 extending left and right, and the first branch air outlet holes 5411 are in two rows, and three first branch air outlet holes 5411 are arranged at intervals in each row. The first branch air outlet vent 541 completely overlaps with the second upper branch air outlet 222, and the second branch air outlet vent 542 completely overlaps with most of the third upper branch air outlet 223. The second air outlet vents 55 are arranged in a square array by second air outlet holes 551 extending left and right, and the second air outlet holes 551 are arranged in two rows, and two second air outlet holes 551 are arranged in each row at intervals. In the first state, the second air outlet vents 55 overlap with part of the first lower divided air outlet 221 and the second lower divided air outlet 222. In addition, in this embodiment, the air inlet vents 53 are arranged in a circular array by air inlet holes 531 extending left and right.

[0051] Furthermore, baffles 8 perpendicular to the main board 50 are fixed to the left and right ends of the main board 50 of the above-mentioned adjustment plate 5, respectively. Each baffle 8 is located on both sides of the above-mentioned air inlet vent 53, and the shape of each baffle 8 is an arc shape centered on the center of the main board 50. The centrifugal force of the airflow on the fan blades 31 of the hot air blower 3 can act on the baffles 8 on both sides. In this way, when the wind speed of the hot air blower 3 is high, the air pressure acting on the baffles 8 on both sides is high, which can play a certain positioning role on the adjustment plate 5, so that the adjustment plate 5 can be more stably positioned in the above-mentioned first state, and when the wind speed of the hot air blower 3 is reduced, the air pressure acting on the baffles 8 on both sides is reduced, thereby promoting the rotation of the adjustment plate 5 relative to the hot air baffle 2. Preferably, the connecting line between the two baffles 8 and the center of the side edge fixed to the main board 50 deviates from the center of the main board 50, so that the two baffles 8 are eccentrically arranged relative to the center of the main board 50, and when the air pressure acting on the baffles 8 on both sides decreases, the baffles 8 on both sides can better drive the adjustment plate 5 to rotate. Further, preferably, the cooking pot 1 structure in this embodiment also includes torsion springs 7 corresponding to the first rotating shaft 61 and the second rotating shaft 62, one end of each torsion spring 7 is connected to the corresponding rotating shaft, and the other end is connected to the corresponding extension plate, and each torsion spring 7 makes the adjustment plate 5 have a tendency to rotate in the opposite direction to the rotation direction of the hot air blower 3. In this way, when the rotation speed of the hot air blower 3 is relatively large, the torsion force applied to the adjustment plate 5 by the hot air blower 3 is balanced with the torsion force applied to the adjustment plate 5 by each torsion spring 7, and when the rotation speed of the hot air blower 3 decreases, each torsion spring 7 drives the adjustment plate 5 to rotate in the direction opposite to the rotation direction of the hot air blower 3, so that the adjustment plate 5 is in the above-mentioned second state.

[0052] The working process of the present invention is as follows:

[0053] In the high air volume mode (the first state mentioned above): in the initial state, the air inlet vent 53 of the adjustment plate 5 overlaps with the air outlet of the hot air baffle 2, the first air outlet vent 54 of the adjustment plate 5 overlaps with the first air outlet 22 of the hot air baffle 2, and the second air outlet vent 55 of the adjustment plate 5 overlaps with the second air outlet 23 of the hot air baffle 2. The hot air blower 3 is in the high-speed gear state, the fan blades 31 of the hot air blower 3 rotate clockwise (from the front of the whole machine), and the torque direction of each torsion spring 7 is counterclockwise. At this time, the torque of each torsion spring 7 acting on the corresponding rotating shaft is the smallest. The centrifugal air pressure generated by the rotation of the fan blades 31 acts on the baffles 8 on both sides respectively, the first rotating shaft 61 abuts against the upper end of the first rotating slot 57, and the second rotating shaft 62 abuts against the lower end of the second rotating ring slot 56, and the adjustment plate 5 is in a static state of being arranged horizontally left and right.

[0054] In the small air volume mode (the second state mentioned above): the hot air blower 3 is in the low speed gear state, the centrifugal air pressure generated by the fan blades 31 of the hot air blower 3 is reduced, the torque of each torsion spring 7 acting on the corresponding rotating shaft is increased, and the adjusting plate 5 rotates counterclockwise, so that the air inlet vent 53 and the air inlet 21 are staggered with each other. At the same time, the first air outlet vent 54 and the corresponding position of the first air outlet 22 are staggered with each other, and the second air outlet vent 55 and the corresponding position of the second air outlet 23 are staggered with each other. The air intake and air outlet of the hot air chamber 20 are reduced at the same time. At the same time, the centrifugal air pressure acting on the baffles 8 on both sides is reduced. When the adjusting plate 5 is rotated, the centrifugal air pressure acting on the baffles 8 on both sides assists in driving the adjusting plate 5 to rotate.

Claims

1. A cooking liner structure, comprising an liner (1), a hot air baffle (2) having an air inlet (21) and an air outlet being arranged at the rear side of the inner cavity of the liner (1), a hot air chamber (20) being formed between the hot air baffle (2) and the back plate of the liner (1), a hot air blower (3) being installed in the hot air chamber (20), a heating tube (4) being arranged around the outer periphery of the fan blades (31) of the hot air blower (3), characterized in that: The air inlet area of ​​the air inlet (21) is larger than the total air outlet area of ​​the air outlet, and the air outlet comprises a first air outlet (22) located at the upper left portion of the hot air baffle (2) and a second air outlet (23) located at the lower right portion of the hot air baffle (2), the sum of the air outlet volumes of the first air outlet (22) and the second air outlet (23) is larger than 50% of the total air outlet volume, and the air outlet volume of the first air outlet (22) is larger than the air outlet volume of the second air outlet (23); The air inlet (21) is a circular array formed by evenly arranged long strip-shaped air inlet holes (211) extending left and right; The first air outlet (22) comprises a first upper air outlet (221), a second upper air outlet (222) and a third upper air outlet (223), wherein the first upper air outlet (221) is formed by an inward depression of the upper edge of the hot air baffle (2), the third upper air outlet (223) is located at the lowest point of the first air outlet (22), the second upper air outlet (222) is located between the first upper air outlet (221) and the third upper air outlet (223) and below the first upper air outlet (221), and the air outlet area of ​​the first upper air outlet (221) is greater than the air outlet area of ​​the second upper air outlet (222), and the air outlet area of ​​the second upper air outlet (222) is greater than the air outlet area of ​​the third upper air outlet (223); An adjustment plate (5) is vertically attached to the rear surface of the hot air baffle (2), and the adjustment plate (5) is respectively provided with an air inlet vent (53) corresponding to the air inlet (21), a first air outlet vent (54) corresponding to the first air outlet (22), and a second air outlet vent (55) corresponding to the second air outlet (23), and the adjustment plate (5) can rotate relative to the rear surface of the hot air baffle (2) with the central axis of the air inlet (21) as the center, and has at least two states: In the first state, the air inlet (53) overlaps with the air inlet (21) front to back, the first air outlet (54) overlaps with the first air outlet (22) front to back, and the second air outlet (55) overlaps with the second air outlet (23) front to back, and in this state, the wind speed of the hot air blower (3) is the maximum; In the second state, the air inlet (53) and the air inlet (21) are staggered front to back, the first air outlet (54) and the first air outlet (22) are staggered front to back, and the second air outlet (55) and the second air outlet (23) are staggered front to back, and the wind speed of the hot air blower (3) is the minimum in this state; The regulating plate (5) comprises a circular main plate (50), the air inlet vent (53) being arranged on the main plate (50) with the center of the main plate (50) as the center, and a first extension plate (51) and a second extension plate (52) extending outward from the upper left end and the lower right end of the regulating plate (5) respectively, the first air outlet vent (54) and the second air outlet vent (55) being respectively arranged on the first extension plate (51) and the second extension plate (52), and a vent along the regulating plate (50) is respectively arranged at the junction of the first extension plate (51) and the second extension plate (52) with the main plate (50). The first rotating groove (57) and the second rotating groove (56) extend in the rotation direction of the plate (5), and the first rotating shaft (61) and the second rotating shaft (62) extending in the front-to-back direction are respectively fixed on the rear surface of the hot air baffle (2), and the first rotating shaft (61) and the second rotating shaft (62) are respectively inserted into the above-mentioned first rotating groove (57) and the second rotating groove (56), and each rotating shaft can slide back and forth along the corresponding rotating groove respectively. When the above-mentioned adjustment plate (5) is in the above-mentioned first state and the second state, each rotating shaft is respectively against the corresponding end of the corresponding rotating groove.

2. The cooking pot structure according to claim 1, characterized in that: The first upper air outlet (221) is a long strip-shaped notch, the second upper air outlet (222) is an array composed of long strip-shaped first upper air outlet holes (2221) extending left and right, and the third upper air outlet (223) is a square array composed of circular second upper air outlet holes (2231) extending left and right, and the first upper air outlet (221) is two arranged in parallel on the left and right, the second upper air outlet (222) is arranged opposite to the first upper air outlet (221) located on the outside, and the outer end of the third upper air outlet (223) protrudes outward from the second upper air outlet (222).

3. The cooking liner structure according to claim 1, characterized in that: The second air outlet (23) comprises a first lower air outlet (231) and a second lower air outlet (232), wherein the first lower air outlet (231) is located above the second lower air outlet (232), and the inner end of the second lower air outlet (232) protrudes outward from the first lower air outlet (231).

4. The cooking pot structure according to claim 3, characterized in that: The first lower air outlet (231) is a square array consisting of circular first lower air outlet holes (2311) extending left and right, while the second lower air outlet (232) is an array consisting of long strip-shaped second lower branch air outlet holes (2321) extending left and right.

5. The cooking pot structure according to claim 1, characterized in that: The air outlet further comprises a third air outlet (24) located at the upper right portion of the hot air baffle (2).

6. The cooking pot structure according to claim 5, characterized in that: The third air outlet (24) is an array composed of circular third air outlet holes (241).

7. The cooking pot structure according to claim 1, characterized in that: The air outlet further comprises a fourth air outlet (25) located below the air inlet (21).

8. The cooking pot structure according to claim 7, characterized in that: The fourth air outlet (25) is an array of fourth air outlet holes (251) extending left and right.

9. The cooking pot structure according to claim 1, characterized in that: The air outlet further comprises a fifth air outlet (26) located at the lower left portion of the hot air baffle (2).

10. The cooking pot structure according to claim 9, characterized in that: The air outlet further comprises a sixth air outlet (27) located at the lower middle portion of the left side of the hot air baffle (2), and the sixth air outlet (27) is located above the fifth air outlet (26).

11. The cooking pot structure according to claim 10, characterized in that: The fifth air outlet (26) is a square array consisting of circular fifth air outlet holes (261) extending left and right, and the sixth air outlet (27) is composed of circular sixth air outlet holes (271) evenly spaced along the left and right directions. When the baking tray is placed on the second layer, the sixth air outlet (27) is exposed above the baking tray.

12. The cooking pot structure according to claim 10, characterized in that: The air outlet also includes a seventh air outlet (28) formed by the left edge of the hot air baffle (2) being recessed inwardly along the height direction, and an eighth air outlet (29) formed by the right edge of the hot air baffle (2) being recessed inwardly along the height direction, wherein the seventh air outlet (28) is located between the third upper air outlet (223) and the fifth air outlet (26), and the sixth air outlet (27) is opposite to the lower end of the seventh air outlet (28) on the left and right, and the eighth air outlet (29) is located between the third air outlet (24) and the second air outlet (23), and the air outlet area of ​​the seventh air outlet (28) is greater than the air outlet area of ​​the eighth air outlet (29).

13. The cooking pot structure according to claim 1, characterized in that: The ratio of the air inlet area of ​​the air inlet (21) to the total air outlet area of ​​the air outlet is 1.2 to 1.5, and the sum of the air outlet volumes of the first air outlet (22) and the second air outlet (23) is greater than 60% of the total air outlet volume.

14. The cooking pot structure according to claim 1, characterized in that: The first extension plate (51) and the second extension plate (52) extend in the left and right directions respectively, and the first air outlet vent (54) comprises a first branch air outlet vent (541) and a second branch air outlet vent (542). In the first state, the first branch air outlet vent (541) corresponds to the second upper branch air outlet (222) and the second branch air outlet vent (542) corresponds to the third upper branch air outlet (223).

15. The cooking pot structure according to claim 1, characterized in that: The left and right ends of the main board (50) of the adjustment plate (5) are respectively fixed with baffles (8) perpendicular to the main board (50), each baffle (8) is respectively located on both sides of the air inlet vent (53), and the outer shape of each baffle (8) is an arc shape with the center of the main board (50) as the center.

16. The cooking pot structure according to claim 15, characterized in that: The line connecting the centers of the side edges of the two blocking pieces (8) and the main board (50) is deviated from the center of the circle of the main board (50).

17. The cooking pot structure according to claim 1, characterized in that: It also includes torsion springs (7) corresponding to the first rotating shaft (61) and the second rotating shaft (62), one end of each torsion spring (7) is connected to the corresponding rotating shaft, and the other end is connected to the corresponding position of the adjustment plate (5), each torsion spring (7) makes the adjustment plate (5) have a tendency to rotate in the opposite direction to the rotation direction of the hot air blower (3).

18. An oven having a cooking liner structure according to any one of claims 1 to 17.

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