Baking cooking equipment

Abstract

The invention provides baking cooking equipment which comprises an oven assembly, a ventilation baffle, a hot air assembly and a linkage mechanism, the oven assembly is provided with a baking cavity, and the baking cooking equipment further comprises a fan mounting wall used for forming the inner wall of the baking cavity; the ventilation baffle and the fan mounting wall are arranged at an interval, and air outlet holes are formed in the ventilation baffle; the air outlet holes penetrate through one side, facing the fan mounting wall, of the ventilation baffle and the other side, back to the fan mounting wall, of the ventilation baffle; the hot air assembly comprises a fan arranged between the fan mounting wall and the ventilation baffle and a driving part connected with the fan; the linkage mechanism comprises a driving part connected with the driving part and a driven part rotationally arranged on the fan mounting wall, the driven part and the fan have the same rotating center, and the ventilation baffle is fixedly arranged on the driven part.

Description

Technical Field

[0001] The present invention relates to the technical field of household electrical appliances, and in particular to a baking and cooking device. Background Art

[0002] In traditional baking equipment, the position of the air outlet for blowing out hot air is fixed and cannot be changed. The flow trajectory of the hot air flow in the oven is limited, so the area in the oven that can be effectively heated by the hot air flow is limited. In areas where the hot air flow does not pass, the food is easily heated unevenly. The user needs to open the oven and perform the tray inversion operation during the baking process, that is, adjust the position of the baking tray with the food in the oven so that the area where the food is not heated enough can be blown by the hot air flow after the tray is inverted. Therefore, the thermal efficiency of this type of baking equipment is low, and the taste of the baked food is not good.

[0003] At present, there is an improved baking cooking equipment, which is mainly improved for the situation that the food is heated unevenly. The specific improvement means is to increase the number of air outlets and increase the distribution area of ​​the air outlets on the hot air blower baffle. That is, on the basis of traditional baking equipment, the distribution of the air outlets on the hot air blower baffle is further dispersed to increase the range of the hot air flow in the baking chamber. However, the more dispersed air outlets will cause the hot air flow to be dispersed. Each air outlet blows out a small amount of hot air flow, which seriously reduces the initial kinetic energy of a single hot air flow when it flows out of each air outlet, and finally causes the speed of the hot air flow passing over the surface of the food to drop significantly, greatly reducing the efficiency of baking the food. Summary of the invention

[0004] In view of this, the present invention provides a baking and cooking device that can improve the uniformity of heating of food and can improve the baking efficiency and taste of food.

[0005] The baking and cooking device of the present invention comprises an oven assembly, a ventilation baffle, a hot air assembly and a linkage mechanism, wherein the oven assembly has a baking chamber and also comprises a fan mounting wall for forming the inner wall of the baking chamber; the ventilation baffle is spaced apart from the fan mounting wall and is provided with an air outlet, the air outlet passes through one side of the ventilation baffle facing the fan mounting wall and the other side of the ventilation baffle facing away from the fan mounting wall; the hot air assembly comprises a fan arranged between the fan mounting wall and the ventilation baffle and a driving member connected to the fan; the linkage mechanism comprises an active member connected to the driving member and a driven member rotatably arranged on the fan mounting wall, the driven member and the fan have the same rotation center, and the ventilation baffle is fixed to the driven member.

[0006] The baking cooking device of the present invention has the following beneficial effects:

[0007] When the food in the baking chamber is baked, the fan, driven by the driving member, blows the hot air flow through the air outlet holes to the side of the ventilation baffle away from the fan installation wall. At the same time, the driving member also inputs power to the active member, and this part of the power is transmitted to the driven member, thereby driving the ventilation baffle to rotate around the rotation center of the fan, and the air outlet holes on the ventilation baffle rotate around the rotation center of the fan accordingly, thereby realizing the real-time dynamic position change of the air outlet holes, and then realizing the real-time dynamic change of the wind beam position of the hot air flow on the side of the ventilation baffle away from the fan installation wall. The hot air flow is no longer limited to blowing a certain position of the food, and all parts of the food can obtain heat, thereby improving the heating uniformity and taste of the food.

[0008] In addition, the baking and cooking equipment of the present invention does not need to disperse the air outlet holes. Instead, multiple air outlet holes can be merged to make the air outlet holes on the ventilation baffle fewer and more concentrated, thereby reducing the number of hot air flow beams and achieving air beam centralization, which is beneficial to increasing the initial kinetic energy of the hot air flow when it blows out of the air outlet holes. The hot air flow with greater kinetic energy can improve the heating and maturation efficiency of the food.

[0009] In some embodiments, the active member is a sun gear, the driven member is a wheel rim surrounding the radial outer side of the sun gear, and the linkage mechanism further includes a planetary gear disposed between the sun gear and the wheel rim.

[0010] In some embodiments, the fan, the sun gear and the wheel rim are coaxially arranged, and when the driving member drives the sun gear and the fan to rotate, the ventilation baffle can rotate around the rotation center of the fan following the wheel rim; and / or,

[0011] The ventilation baffle covers the fan, and the minimum distance from the air outlet to the rotation center of the fan is greater than the distance from the fan blade tail to the rotation center.

[0012] In some embodiments, it further includes a planet carrier fixedly connected to the fan installation wall, the planet carrier includes a gear bracket rotatably connected to the planetary gear, and the gear bracket is used to limit the axis position of the planetary gear.

[0013] In some embodiments, a cover shell connected to a ventilation baffle is further included, wherein a side of the ventilation baffle facing the fan installation wall is surrounded by the cover shell to form an air cavity connected to the air outlet, and the fan is disposed in the air cavity.

[0014] In some embodiments, the cover includes an arcuate wall and a tangential wall arranged on the radial outer side of the fan, the arcuate wall extends around the rotation center of the fan and is tangentially connected to the tangential wall, and the wind cavity includes a tangential air duct connected to the air outlet, and the tangential air duct is located on the side of the tangential wall relatively close to the fan.

[0015] In some embodiments, the ventilation baffle is further provided with a return air hole penetrating through both sides of the ventilation baffle, and the maximum distance from the return air hole to the rotation center of the fan is smaller than the distance from the air outlet hole to the rotation center of the fan; and / or,

[0016] The tangential walls are arranged in an even number and are symmetrical about the rotation center of the fan, the tangential air ducts are arranged in an even number and are symmetrical about the rotation center of the fan, and the air outlet holes are arranged in an even number and are symmetrical about the rotation center of the fan.

[0017] In some embodiments, the ventilation baffle includes an arc segment and a spiral arm segment, the outer edge of the arc segment is adapted to and connected to the arc wall, the outer edge of the spiral arm segment is adapted to and connected to the tangential wall, and the air outlet is opened in the spiral arm segment.

[0018] In some embodiments, the cover further includes a bent wall disposed on the radially outer side of the fan, the bent wall is bently connected to the arc-shaped wall, and a tangential air duct is formed between the tangential wall and the bent wall.

[0019] In some embodiments, the cover includes an annular wall arranged on the radial outside of the fan, the annular wall extends around the rotation center of the fan, the wind cavity includes an acceleration cavity formed between the fan blade tail and the inner side of the annular wall, and the air outlet is connected to the acceleration cavity.

[0020] In some embodiments, the air outlet holes are arranged in an even number and are symmetrical about the rotation center of the fan. The ventilation baffle is also provided with return air holes that pass through both sides of the ventilation baffle. The maximum distance from the return air holes to the rotation center of the fan is smaller than the distance from the air outlet holes to the rotation center of the fan.

[0021] In some embodiments, a guide vane is provided on the ventilation baffle, and the guide vane is inclined relative to the surface where the opening of the air outlet is located. The guide vane is used to guide the airflow so that the airflow blown out from the air outlet obtains a velocity vector away from the fan installation wall and the ventilation baffle.

[0022] In some embodiments, a heating element is further included which is disposed in the wind cavity and radially outside the fan, and the distance from the heating element to the rotation center of the fan is smaller than the distance from the air outlet to the rotation center of the fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the structure and composition of a baking cooking device according to an embodiment of the present invention;

[0024] Figure 2 A partial structural schematic diagram of a baking cooking device according to an embodiment of the present invention;

[0025] Figure 3 It is a partial structural exploded diagram of a baking cooking device according to one embodiment of the present invention;

[0026] Figure 4 A front view of a baking cooking device according to an embodiment of the present invention;

[0027] Figure 5 A front view of a baking cooking device according to another embodiment of the present invention;

[0028] Figure 6 It is a partial structural schematic diagram of a baking cooking device according to an embodiment of the present invention.

[0029] Explanation of the reference numerals: 10, oven assembly; 11, fan mounting wall; 12, baking chamber; 20, ventilation baffle; 21, air outlet; 22, return air hole; 23, arc segment; 24, swing arm segment; 25, guide vane; 30, cover; 31, arc wall; 32, tangential wall; 33, bent wall; 34, annular wall; 35, rear cover; 36, acceleration chamber; 37, tangential air duct; 41, fan; 411, spoiler; 42, heating element; 51, driving element; 511, driving motor; 512, driving shaft; 52, sun gear; 53, planetary gear; 54, driven element; 541, wheel rim; 60, planet carrier; 61, gear bracket. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "or / and" used herein includes any and all combinations of one or more related listed items.

[0032] The present invention provides a baking cooking device, and the specific type of the baking cooking device is not limited, and can be a traditional baking oven or a steaming oven. Figure 1-2 , Figure 4-5 The baking cooking device of the present invention includes an oven assembly 10 and a hot air assembly. The oven assembly 10 has a baking cavity 12 and also includes a fan installation wall 11 for forming the inner wall of the baking cavity 12. One end of the oven assembly 10 that is arranged opposite to the fan installation wall 11 forms a food access opening connected to the baking cavity 12. When baking food, the oven door closes the food access opening and is arranged opposite to the fan installation wall 11. The hot air assembly includes a driving member 51, a fan 41 and a heating member 42. The driving member 51 is installed on a side of the fan installation wall 11 away from the baking cavity 12, the fan 41 is arranged on the other side of the fan installation wall 11 facing the baking cavity 12 and connected to the driving member 51, and the heating member 42 is arranged in the baking cavity 12.

[0033] Furthermore, the baking cooking device further comprises a ventilation baffle 20 and a linkage mechanism. The ventilation baffle 20 is spaced apart from the fan installation wall 11 and is provided with an air outlet 21, the air outlet 21 penetrates the ventilation baffle 20 on one side facing the fan installation wall 11 and on the other side facing away from the fan installation wall 11, the fan 41 is arranged between the fan installation wall 11 and the ventilation baffle 20, when the driving member 51 drives the fan 41 to rotate, the airflow formed between the fan installation wall 11 and the ventilation baffle 20 is blown toward the side of the ventilation baffle 20 facing away from the fan installation wall 11 through the air outlet 21; at least part of the heating member 42 is arranged between the fan installation wall 11 and the ventilation baffle 20 so as to heat the airflow generated by the fan 41; the linkage mechanism comprises an active member connected to the driving member 51 and a driven member 54 rotatably arranged on the fan installation wall 11, the driven member 54 and the fan 41 have the same rotation center, and the ventilation baffle 20 is fixed to the driven member 54. The driving member 51 drives the fan 41 to rotate and outputs power to the active member at the same time. The driven member 54 obtains the power and drives the ventilation baffle 20 to rotate around the rotation center of the fan 41 .

[0034] With such arrangement, the baking and cooking device of the present invention has the following beneficial effects:

[0035] The present invention replaces the hot air blower baffle in the existing similar products with the ventilation baffle 20. The biggest difference between the ventilation baffle 20 and the hot air blower baffle is that the ventilation baffle 20 can rotate relative to the oven assembly 10. In the present invention, the rotation of the ventilation baffle 20 and the fan 41 is powered by the same driving member 51, which reduces the number of driving members 51 and simplifies the internal structure layout and assembly process of the baking cooking device.

[0036] When the food in the baking chamber 12 is baked, the ventilation baffle 20 rotates around the rotation center of the fan 41, and the air outlet holes 21 on the ventilation baffle 20 rotate around the rotation center of the fan 41 accordingly, thereby realizing the real-time dynamic position change of the air outlet holes 21, and then realizing the real-time dynamic change of the wind beam position of the hot air flow on the side of the ventilation baffle 20 away from the fan installation wall 11. The hot air flow is no longer limited to blowing a certain position of the food, and all parts of the food can obtain heat, thereby improving the heating uniformity and taste of the food, and there is no need to disperse the air outlet holes 21. On the contrary, a plurality of air outlet holes 21 can be combined to make the air outlet holes 21 on the ventilation baffle 20 fewer and more concentrated, thereby reducing the number of hot air flow beams and realizing wind beam centralization, which is beneficial to increasing the initial kinetic energy of the hot air flow when blowing out of the air outlet holes 21. The hot air flow with greater kinetic energy can improve the heating and maturation efficiency of the food.

[0037] Further, see Figure 1 , Figure 4-5The ventilation baffle 20 is also provided with a return air hole 22, which penetrates the side of the ventilation baffle 20 facing the fan installation wall 11 and the other side of the ventilation baffle 20 facing away from the fan installation wall 11. The return air hole 22 allows the airflow to flow back through the side of the ventilation baffle 20 facing away from the fan installation wall 11 and return to the side of the ventilation baffle 20 facing the fan installation wall 11. After the airflow flows back, it can be disturbed and accelerated by the fan 41 again and heated by the heating element 42 again to regenerate the hot air flow, thereby realizing the circulation of the airflow on both sides of the ventilation baffle 20. Among them, the number of return air holes 22 can be multiple, and the multiple return air holes 22 are dispersed and arranged in a lattice shape. The maximum distance from the return air hole 22 to the rotation center of the fan 41 is less than the distance from the air outlet 21 to the rotation center of the fan 41, wherein the maximum distance refers to the distance from the return air hole 22 farthest from the rotation center of the fan 41 to the rotation center of the fan 41.

[0038] See also Figure 1 and Figure 3 In some embodiments, the linkage mechanism is a planetary gear train mechanism, the active member is the sun gear 52, the driven member 54 is a rim 541 surrounding the radially outer side of the sun gear 52, the outer peripheral side of the sun gear 52 and the inner peripheral side of the rim 541 are respectively provided with gear teeth, the linkage mechanism also includes a planetary gear 53 arranged between the sun gear 52 and the rim 541, the outer peripheral side of the planetary gear 53 is provided with gear teeth, and the gear teeth on the outer peripheral side of the planetary gear 53 respectively surround the outer peripheral side of the sun gear 52 and the inner peripheral side of the rim 541, the rotation center of the driven member 54 is the rotation center of the rim 541, and the ventilation baffle 20 is fixedly connected to the rim 541. The driving member 51 drives the fan 41 to rotate and outputs power to the sun gear 52 at the same time. This part of the power is transmitted to the rim 541 through the planetary gear 53, and the rim 541 drives the ventilation baffle 20 to rotate around the rotation center of the fan 41. Figure 3 As shown, the fan 41, the sun gear 52, the rim 541 and the ventilation baffle 20 are coaxially arranged, and their common rotation center is represented by a straight line R. In the present invention, the rotation center of the fan 41 and the axis of the fan 41 are the same element, and the rotation center of the ventilation baffle 20 and the axis of the ventilation baffle 20 are the same element.

[0039] Further, see Figure 1 and Figure 3The baking cooking device further includes a planetary frame 60 fixedly connected to the fan installation wall 11, and the planetary frame 60 includes a gear bracket 61, which is protrudingly arranged on a side of the fan installation wall 11 close to the ventilation damper 20, and the planetary gear 53 is rotatably connected to the gear bracket 61, and the gear bracket 61 passes through the planetary gear 53 from the end center of the planetary gear 53 along the axial direction of the planetary gear 53, so that the axis position of the planetary gear 53 is limited by the gear bracket 61, so that the axis of the planetary gear 53 is fixedly arranged relative to the fan installation wall 11. In this way, after the power of the sun gear 52 is transmitted to the planetary gear 53, the planetary gear 53 rotates under the constraint of the gear bracket 61 and does not roll along the outer peripheral side of the sun gear 52, so that the power is efficiently transmitted to the wheel rim 541 to rotate the ventilation damper 20.

[0040] Optionally, the planetary gears 53 and the gear bracket 61 are configured to be multiple and connected one by one, and the multiple planetary gears 53 have the same shape, and the outer diameter of each planetary gear 53 is smaller than the outer diameter of the sun gear 52. In this way, the linkage mechanism can not only obtain a part of the power from the driving member 51 to drive the ventilation baffle 20 to rotate, but also the fan 41 and the sun gear 52 rotate at a very high speed under the drive of the driving member 51, while the rotation speed of the wheel rim 541 and the ventilation baffle 20 is significantly reduced, thereby realizing the low-speed rotation of the ventilation baffle 20, and the speed of changing the position of the air outlet 21 is significantly reduced, so that the hot air flow beam can be prevented from changing its position quickly in the baking chamber 12, and the wind beam of the hot air flow is changed by a slow and gradual change, so as to avoid the heat flow turbulence in the baking chamber 12 to ensure the baking efficiency. It can be understood that when the linkage mechanism is a planetary gear train mechanism, the rotation direction of the wheel rim 541 is opposite to the rotation direction of the sun gear 52, that is, the final rotation direction of the fan 41 is opposite to the rotation direction of the ventilation baffle 20.

[0041] Optionally, see Figure 1 and Figure 3 The driving member 51 includes a driving motor 511 and a driving shaft 512. The driving motor 511 is fixedly installed on the side of the fan installation wall 11 facing away from the baking chamber 12. The driving shaft 512 rotatably passes through the fan installation wall 11. One end of the driving shaft 512 is connected to the output end of the driving motor 511, and the other end is fixedly connected to the sun gear 52 and the fan 41. The axis of the driving shaft 512 serves as the rotation center of the fan 41, the sun gear 52, the rim 541 and the ventilation baffle 20.

[0042] Optionally, see Figure 3The fan 41 includes a spoiler 411 for disturbing air to form a hot air flow. The spoiler 411 extends outward along the radial direction of the fan 41 relative to the rotation center of the fan 41. One end of the spoiler 411 relatively far away from the rotation center of the fan 41 forms a blade tail of the fan 41. The blade tail of the fan 41 serves as the part where air leaves the fan 41. When the airflow leaves the fan 41, it has a certain velocity vector along the radial direction of the fan 41. In order to allow the hot air flow generated by the fan 41 to be blown out of the air outlet 21 with less kinetic energy loss, the ventilation baffle 20 is configured to cover the fan 41, and the fan 41 can be fully projected onto the ventilation baffle 20 along the axial direction, and the minimum distance from the air outlet 21 to the rotation center of the fan 41 is greater than the distance from the tail of the fan 41 to the rotation center of the fan 41. When the ventilation baffle 20 is driven by the follower 54 to rotate around the rotation center of the fan 41, the inner diameter of the circular trajectory formed by the rotation of the air outlet 21 is greater than the diameter of the circular trajectory formed by the rotation of the tail of the fan 41, so that the position of the air outlet 21 is adapted to the inertia of the airflow when it leaves the fan 41.

[0043] In some embodiments, the baking and cooking device further comprises a cover 30 fixedly connected to the ventilation baffle 20. Figure 2-3 , Figure 6 The housing 30 includes a side wall and a rear cover 35. The rear cover 35 is located on the side of the ventilation baffle 20 facing the fan installation wall 11. The ventilation baffle 20 and the rear cover 35 are arranged along the axial direction of the fan 41 and are spaced and arranged opposite to each other. The shapes and sizes of the two are matched. The side wall connects the outer edge of the ventilation baffle 20 and the outer edge of the rear cover 35. The side of the ventilation baffle 20 facing the fan installation wall 11, the rear cover 35 and the side wall surround to form a wind cavity. The fan 41 and at least part of the heating element 42 are arranged in the wind cavity. The air outlet 21 and the return air hole 22 are connected to the ventilation cavity. The wind cavity is used as a place to generate hot air flow and can collect air that flows back from the side of the ventilation baffle 20 away from the fan installation wall 11. The wind cavity has a certain degree of closure, so that the air pressure inside it can be increased and maintained when the fan 41 rotates, so that the hot air flow obtains a larger initial velocity after being blown out from the air outlet 21 to help the hot air flow flow farther.

[0044] Specifically, see Figure 2-3, the fan 41 and the inner side of the side wall of the housing 30 are spaced apart. When the driving member 51 drives the fan 41 to rotate, an acceleration cavity 36 is formed between the tail of the fan 41 and the inner side of the side wall. The acceleration cavity 36 is a part of the wind cavity and surrounds the fan 41 along the circumference of the fan 41. The heating member 42 includes a heating pipe located in the wind cavity. The heating pipe is located on the radial outer side of the fan 41 and surrounds the fan 41 along the circumference of the fan 41, that is, the heating pipe is located in the acceleration cavity 36. As mentioned above, the driving member 51 drives the fan 41 and the active member, and finally the fan 41 and the ventilation baffle 20 rotate in different directions respectively, and the housing 30 rotates synchronously with the ventilation baffle 20, so that a relative motion is generated between the tail of the fan 41 and the side wall, and the airflow is accelerated and heated in the acceleration cavity 36. As the flow rate of the hot air flow in the wind cavity increases, the initial speed of the hot air flow when it blows out of the air outlet 21 increases.

[0045] Furthermore, if Figure 2-3 As shown, the side wall includes an arcuate wall 31 and a tangential wall 32 which are arranged on the radial outer side of the fan 41. The arcuate wall 31 is in the shape of an arc plate and extends around the rotation center of the fan 41. The end of the arcuate wall 31 is tangentially connected to the end of the tangential wall 32. The tangential wall 32 is in the shape of a flat plate and extends along the tangential direction of the arcuate wall 31. The tangential direction of the arcuate wall 31 is the tangential direction of one end of the arcuate wall 31 connected to the tangential wall 32. The ventilation baffle 20 includes an arc segment 23, a spiral arm segment 24 and a hollow plate that are integrally connected. The hollow plate is circular and has a return air hole 22. The arc segment 23 and the spiral arm segment 24 are both connected to the radial outer side of the hollow plate. The outer edge of the arc segment 23 away from the rotation center of the fan 41 is adapted to and connected to the arc wall 31. The edge of the spiral arm segment 24 away from the rotation center of the fan 41 is tangentially connected to the edge of the arc segment 23 away from the rotation center of the fan 41. The outer edge of the spiral arm segment 24 away from the rotation center of the fan 41 is adapted to and connected to the tangential wall 32. The air outlet 21 is opened in the spiral arm segment 24. An arc-shaped acceleration cavity 36 extending along the circumference of the fan 41 is formed between the rear cover 35, the arc segment 23 and the arc wall 31. In addition, the wind cavity also includes a tangential air duct 37 connecting the acceleration cavity 36 and the air outlet 21. The tangential air duct 37 is located on a side of the tangential wall 32 relatively close to the fan 41, and is formed by the rear cover 35, the swing arm segment 24 and the tangential wall 32.

[0046] With such arrangement, the hot air flow in the acceleration cavity 36 located on the radial outer side of the fan 41 can be concentratedly converged into the tangential air duct 37, which is equivalent to the fan 41 throwing the hot air flow into the tangential air duct 37. Since the tangential wall 32 and the curved wall 31 are tangential and the tangential wall 32 extends tangentially along the curved wall 31, the hot air flow will not experience a decrease in flow velocity when entering the tangential air duct 37 from the acceleration cavity 36. After entering the tangential air duct 37, the hot air flow flows tangentially along the curved wall 31 under the guidance of the tangential wall 32 and the spiral arm segment 24 and approaches the air outlet 21, and is finally blown out from the air outlet 21, thereby improving the concentration of the hot air flow blown toward the side of the ventilation baffle 20 facing away from the fan installation wall 11, helping to increase its initial velocity when blowing out of the air outlet 21, thereby increasing the speed of the hot air flow blowing on the surface of the food, and the food matures faster.

[0047] Optionally, the tangential walls 32 are arranged in an even number and are symmetrical about the rotation center of the fan 41, the tangential air ducts 37 are arranged in an even number and are symmetrical about the rotation center of the fan 41, and the air outlet holes 21 are arranged in an even number and are symmetrical about the rotation center of the fan 41. Figure 2-3 As shown, the number of the tangential wall 32, the spiral arm section 24, the tangential air duct 37 and the air outlet 21 are all two, the two tangential walls 32 are parallel to each other, the length directions of the two tangential air ducts 37 are perpendicular to the rotation center of the fan 41, and an air outlet 21 is opened on each spiral arm section 24, and each air outlet 21 is a single rectangular through hole. Compared with the hot air blower baffle in the existing similar products, the present invention integrates multiple lattice-distributed air outlet holes 21, and the area of ​​the single rectangular air outlet hole 21 is larger, and the number of the air outlet holes 21 is less. After the hot air is blown out from each air outlet hole 21, a single air beam with greater kinetic energy and larger cross-sectional size is formed, which avoids the multiple air beams interfering with each other and slowing down, and the small air beams lack kinetic energy and affect the baking effect.

[0048] Figure 2-3 In the illustrated embodiment, the number of the tangential wall 32, the spiral arm section 24, the tangential air duct 37 and the air outlet 21 are all two. Such an arrangement can enable the ventilation baffle 20 and the cover shell 30 to have a better dynamic balance performance when rotating, thereby improving the force on the driving member 51 and extending the service life of the driving member 51.

[0049] Further, see Figure 2 and Figure 3The side wall of the housing 30 further includes a bent wall 33 disposed on the radially outer side of the fan 41, the bent wall 33 is bent and connected to the arc wall 31, the tangential wall 32 and the bent wall 33 are parallel to each other and spaced apart, and the tangential air duct 37 is formed between the tangential wall 32 and the bent wall 33. With such an arrangement, the hollow shell formed by the housing 30 and the ventilation baffle 20 is similar to the volute of a centrifugal fan as a whole, the bent wall 33 and the arc wall 31 form the volute tongue of the volute, and the air cavity between the housing 30 and the ventilation baffle 20 is similar to the vortex air duct in the volute, thereby further increasing the flow rate of the hot air flow, so that the initial velocity of the hot air flow when blowing out of the air outlet 21 is greater.

[0050] for Figure 4 For the baking cooking device shown in the figure, when the driving member 51 drives the fan 41 to rotate clockwise, the ventilation baffle 20 and the cover 30 rotate counterclockwise, and the position of the hot air flow beam in the baking chamber 12 changes in the counterclockwise direction along the circumference of the fan 41; Figure 5 For the baking cooking device shown, when the driving member 51 drives the fan 41 to rotate counterclockwise, the ventilation baffle 20 and the cover 30 rotate clockwise, and the position of the hot air flow beam in the baking chamber 12 changes in a clockwise direction along the circumference of the fan 41.

[0051] Furthermore, if Figure 6 As shown, in some embodiments, the side wall of the housing 30 is an annular wall 34, which is arranged on the radial outer side of the fan 41 and extends around the rotation center of the fan 41 to form a closed loop structure. The ventilation baffle 20 and the rear cover 35 are both circular plate-shaped structures. The wind cavity includes an annular acceleration cavity 36 formed between the blade tail of the fan 41 and the inner side of the annular wall 34, and the air outlet 21 is connected to the acceleration cavity 36. The heating element 42 located in the wind cavity can be a heating tube, which is arranged between the radial outer side of the fan 41 and the inner side of the annular wall 34. The air outlet 21 can be arranged in an even number and symmetrically about the rotation center of the fan 41, such as Figure 6 As shown, there are two air outlet holes 21, which are rectangular through holes symmetrical about the rotation center of the fan 41. Compared with the hot air blower baffle in existing similar products, the present invention concentrates and integrates multiple air outlet holes 21 distributed in a dot matrix on the hot air blower baffle on the ventilation baffle 20. The area of ​​a single rectangular air outlet hole 21 is larger, and the number of air outlet holes 21 is less. After the hot air is blown out from each air outlet hole 21, a single air beam with greater kinetic energy and larger cross-sectional size is formed, which avoids the multiple air beams interfering with each other and slowing down, and the small air beams have insufficient kinetic energy and affect the baking effect.

[0052] Optionally, see Figure 2-3 , Figure 6In some embodiments, the ventilation baffle 20 is further provided with a guide plate 25, which is arranged obliquely relative to the surface where the opening of the air outlet 21 is located, and the oblique direction of the guide plate 25 enables the guide plate 25 to guide the airflow, so that the hot air flow blown out from the air outlet 21 obtains a velocity vector away from the fan installation wall 11 and the ventilation baffle 20. Preferably, the guide plate 25 is integrally formed with the ventilation baffle 20, and the guide plate 25 is bent and connected to the opening edge of the air outlet 21. The guide plate 25 can protrude relative to the side of the ventilation baffle 20 facing the rear cover 35, and can also protrude relative to the side of the ventilation baffle 20 facing away from the rear cover 35. The guide plate 25 protrudes relative to the side of the ventilation baffle 20 facing the rear cover 35 to prevent the guide plate 25 from contacting the user's hands or food.

[0053] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and are not intended to limit the present invention. As long as they are within the spirit of the present invention, appropriate changes and modifications to the above embodiments are within the scope of protection claimed by the present invention.

Claims

1. A baking and cooking device, characterized in that: include An oven assembly (10), the oven assembly (10) comprising a baking cavity (12), and further comprising a fan installation wall (11) for forming an inner wall of the baking cavity (12); a ventilation baffle (20) spaced from the fan installation wall (11) and provided with an air outlet hole (21), wherein the air outlet hole (21) penetrates a side of the ventilation baffle (20) facing the fan installation wall (11) and another side of the ventilation baffle (20) facing away from the fan installation wall (11); A hot air component, comprising a fan (41) disposed between the fan installation wall (11) and the ventilation baffle (20), and a driving member (51) connected to the fan (41); The linkage mechanism comprises an active member connected to the driving member (51) and a driven member (54) rotatably arranged on the fan installation wall (11); the driven member (54) and the fan (41) have the same rotation center; and the ventilation baffle (20) is fixedly arranged on the driven member (54).

2. The baking cooking device according to claim 1, characterized in that: The active component is a sun gear (52), the driven component (54) is a wheel rim (541) surrounding the radial outer side of the sun gear (52), and the linkage mechanism further comprises a planetary gear (53) arranged between the sun gear (52) and the wheel rim (541).

3. The baking cooking device according to claim 2, characterized in that: The fan (41), the sun gear (52) and the wheel rim (541) are coaxially arranged, and when the driving member (51) drives the sun gear (52) and the fan (41) to rotate, the ventilation baffle (20) can follow the wheel rim (541) to rotate around the rotation center of the fan (41); and / or, The ventilation baffle (20) covers the fan (41), and the minimum distance from the air outlet (21) to the rotation center of the fan (41) is greater than the distance from the blade tail of the fan (41) to the rotation center.

4. The baking cooking device according to claim 2, characterized in that: It also includes a planetary carrier (60) fixedly connected to the fan installation wall (11), the planetary carrier (60) including a gear bracket (61) rotatably connected to the planetary gear (53), and the gear bracket (61) is used to limit the axial position of the planetary gear (53).

5. The baking cooking device according to claim 1, characterized in that: It also includes a cover (30) connected to the ventilation baffle (20), wherein the ventilation baffle (20) and the cover (30) are surrounded on one side facing the fan installation wall (11) to form an air cavity connected to the air outlet (21), and the fan (41) is arranged in the air cavity.

6. The baking cooking device according to claim 5, characterized in that: The cover (30) comprises an arcuate wall (31) and a tangential wall (32) which are arranged on the radial outer side of the fan (41); the arcuate wall (31) extends around the rotation center of the fan (41) and is tangentially connected to the tangential wall (32); the wind cavity comprises a tangential air duct (37) connected to the air outlet (21); the tangential air duct (37) is located on a side of the tangential wall (32) relatively close to the fan (41).

7. The baking cooking device according to claim 6, characterized in that: The ventilation baffle (20) is further provided with a return air hole (22) penetrating through both sides of the ventilation baffle (20), and the maximum distance between the return air hole (22) and the rotation center of the fan (41) is smaller than the distance between the air outlet hole (21) and the rotation center of the fan (41); and / or, The tangential walls (32) are arranged in an even number and are symmetrical about the rotation center of the fan (41), the tangential air ducts (37) are arranged in an even number and are symmetrical about the rotation center of the fan (41), and the air outlet holes (21) are arranged in an even number and are symmetrical about the rotation center of the fan (41).

8. The baking cooking device according to claim 6, characterized in that: The ventilation baffle (20) comprises an arc segment (23) and a spiral arm segment (24); the outer edge of the arc segment (23) is adapted to and connected to the arc wall (31); the outer edge of the spiral arm segment (24) is adapted to and connected to the tangential wall (32); and the air outlet (21) is provided in the spiral arm segment (24).

9. The baking cooking device according to claim 6, characterized in that: The housing (30) further comprises a bent wall (33) arranged on the radial outer side of the fan (41), the bent wall (33) being bent and connected to the arc-shaped wall (31), and the tangential air duct (37) being formed between the tangential wall (32) and the bent wall (33).

10. The baking cooking device according to claim 5, characterized in that: The casing (30) comprises an annular wall (34) arranged on the radial outer side of the fan (41), the annular wall (34) extending around the rotation center of the fan (41), the wind cavity comprising an acceleration cavity (36) formed between the blade tail of the fan (41) and the inner side of the annular wall (34), and the air outlet (21) is connected to the acceleration cavity (36).

11. The baking cooking device according to claim 10, characterized in that: The air outlet holes (21) are arranged in an even number and are symmetrical about the rotation center of the fan (41); the ventilation baffle (20) is also provided with return air holes (22) that pass through both sides of the ventilation baffle (20); and the maximum distance from the return air holes (22) to the rotation center of the fan (41) is smaller than the distance from the air outlet holes (21) to the rotation center of the fan (41).

12. The baking cooking device according to claim 6 or 10, characterized in that: The ventilation baffle (20) is provided with a guide plate (25), the guide plate (25) being arranged at an angle relative to the surface where the opening of the air outlet (21) is located, and the guide plate (25) is used to guide the airflow so that the airflow blown out from the air outlet (21) obtains a velocity vector away from the fan installation wall (11) and the ventilation baffle (20).

13. The baking cooking device according to claim 5, characterized in that: It also includes a heating element (42) disposed in the wind cavity and located radially outside the fan (41), and the distance between the heating element (42) and the rotation center of the fan (41) is smaller than the distance between the air outlet (21) and the rotation center of the fan (41).

Images