CN112754317A

CN112754317A - Cooking inner container structure with humidifying and baking functions and oven

Info

Publication number: CN112754317A
Application number: CN202110121295.8A
Authority: CN
Inventors: 王黎喆; 杨均
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2021-01-28
Filing date: 2021-01-28
Publication date: 2021-05-07
Anticipated expiration: 2041-01-28
Also published as: CN112754317B

Abstract

The invention relates to a cooking liner structure with humidifying and baking functions, which comprises a liner and an air heater, wherein the air heater comprises a motor and a hot air impeller, the rear side of the liner is provided with a hot air baffle with an air inlet and an air outlet, the hot air baffle and a back plate of the liner enclose a hot air chamber, the hot air impeller of the air heater is positioned in the hot air chamber, the periphery of the hot air impeller is provided with a heating pipe, the hot air impeller comprises a hot air shaft tube and a hot air fan blade which is arranged around the hot air shaft tube by taking the hot air shaft tube as the center, the hot air shaft tube is linked with an output shaft of the motor, the rear end of the hot air shaft tube is provided with a steam inlet, the front end of the hot air shaft tube is provided with a steam outlet, and the steam inlet and the steam outlet are communicated through. Compared with the prior art, the steam-assisted food humidifying and baking device can realize the uniform injection of steam to food in the baking process, thereby improving the food humidifying and baking effect, especially the meat food humidifying and baking effect.

Description

Cooking inner container structure with humidifying and baking functions and oven

Technical Field

The invention relates to the field of cooking devices, in particular to a cooking liner structure with a humidifying and baking function and an oven.

Background

The oven can cook various types of food, wherein meat food is the main one type of food cooked by the oven, and the cooked meat food can greatly improve the baking performance of the oven and improve the use experience of users. Traditional oven can make the grease in the meat food separate out when baking meat food, and the grease can form the protective layer on the meat surface to the baking time of extension meat, when the whole roast ripe of meat, the less oily and thinner edge is easily burnt, and meat food is roast ripe back, and the meat can be more firewood, and is not full fresh and tender enough, and the taste is not good.

When the novel oven with the humidifying and baking functions is used for baking meat, the moisture is utilized to inhibit the separation of excessive grease in the meat, so that the meat is easier to bake, the edge of the meat is not easy to be burnt, the baked meat is more 'scorched outside and tender inside', and the taste is better. Particularly, meat food with bones is humidified and roasted to avoid grease loss in the meat, so that the roasted meat is easier to separate from the bones, and the food is convenient for users. For example, chinese utility model patent No. ZL201920012061.8 (No. CN209610893U) discloses a humidifying oven. However, the humidification and baking function of the existing oven generally has the problem of uneven steam injection, so that steam cannot cover the outer surface of meat food, and further improvement of the baking effect of the meat food is limited.

Disclosure of Invention

The first technical problem to be solved by the invention is to provide a cooking inner container structure with uniform steam injection and a humidifying and baking function aiming at the prior art.

The second technical problem to be solved by the invention is to provide a cooking inner container structure with large air volume and a humidifying and baking function aiming at the prior art.

The third technical problem to be solved by the present invention is to provide a cooking inner container structure with a humidifying and baking function, which has a good baking effect, especially for baking meat food.

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

The technical scheme adopted by the invention for solving at least one technical problem is as follows: the utility model provides a culinary art inner bag structure with roast function of humidification, includes inner bag and air heater, and this air heater includes motor and hot-blast impeller, and the rear side of this inner bag is provided with the hot-blast baffle of utensil air intake and air outlet, and this hot-blast baffle encloses into hot-blast room with the backplate of inner bag, and the hot-blast impeller of above-mentioned air heater is located this hot-blast room, and the outer periphery of this hot-blast impeller is equipped with the heating pipe, its characterized in that, hot-blast impeller includes hot-blast central siphon and encloses the hot-blast fan leaf of establishing in this hot-blast central siphon periphery with this hot-blast central siphon as the center, and this hot-blast central siphon links with the output shaft of above-mentioned motor, and the steam inlet has been seted up to the rear end of this hot-blast central siphon and the steam.

Further, the steam outlet comprises a steam jet hole, and the steam jet hole is circumferentially arranged at the front end of the hot air shaft tube. The steam can be more uniformly sprayed out of the steam outlet along with the rotation of the hot air shaft tube, and then the steam can be more uniformly sprayed to the surface of the food.

Further, the fan also comprises an enhanced impeller with the radius smaller than that of the hot air impeller, the enhanced impeller takes the hot air shaft pipe as the center and is arranged at the front end of the hot air shaft pipe, and the rotation direction of the enhanced impeller is opposite to that of the hot air fan. The air inlet volume of the air heater can be increased by arranging the reinforcing impeller, so that the air outlet volume of the air heater and the air volume of the inner container are increased, and the baking effect of the oven is improved.

Further, the hot air shaft tube includes a main shaft, an inner shaft sleeve, an outer shaft sleeve and a transmission assembly for linking the main shaft, the main shaft is fixed on the output shaft of the motor, the main shaft is inserted into the inner shaft sleeve, the outer shaft sleeve is sleeved outside the inner shaft sleeve, the inner shaft sleeve is of a hollow structure, the inner cavity of the inner shaft sleeve forms the steam channel, the front end and the rear end of the steam channel are respectively exposed out of the front side and the rear side of the outer shaft sleeve, the rear end of the inner shaft sleeve is provided with the steam inlet, the front end of the inner shaft sleeve is provided with the steam outlet, the rotation direction of the main shaft is the same as that of the inner shaft sleeve and is opposite to that of the outer shaft sleeve, the hot fan blade is installed on the. Therefore, the synchronous rotation of the hot air impeller and the reinforcing impeller can be realized, and the rotation directions of the hot air impeller and the reinforcing impeller are opposite.

Further, the transmission assembly includes a first transmission gear installed on the main shaft, a second transmission gear installed on the inner sleeve, and a transmission gear ring circumferentially disposed on an inner circumferential surface of the outer sleeve, and the first transmission gear is engaged with the second transmission gear, and the second transmission gear is engaged with the transmission gear ring. Synchronous rotation of main shaft, interior axle sleeve and outer axle sleeve and the antiport of interior axle sleeve and outer axle sleeve can be realized through drive assembly like this, and then realize the synchronous rotation and the antiport of hot-blast impeller and reinforcing impeller.

Further, the inner shaft sleeve comprises a first sleeve body and a second sleeve body along the axial direction, a gear carrier is fixed between the first sleeve body and the second sleeve body, the first transmission gear is adjacent to the gear carrier, the second transmission gear is installed on the gear carrier, and the first sleeve body, the second sleeve body and the gear carrier are all of a hollow structure. Therefore, the second transmission gear can be stably installed and meshed with the first transmission gear.

Furthermore, the gear rack comprises gear shafts which are arranged at intervals along the circumferential direction and respectively extend along the axial direction of the inner shaft sleeve, the second transmission gears are respectively arranged on the gear shafts, and the first transmission gears are clamped at the centers of the second transmission gears and are respectively meshed with the second transmission gears. Further realize the firm installation on the inner shaft sleeve of each second drive gear to and each second drive gear and the firm meshing of first drive gear.

Furthermore, the middle part of the outer shaft sleeve expands outwards along the circumferential direction to form a mounting disc, the transmission gear ring is arranged on the inner circumferential surface of the mounting disc, and the gear rack is accommodated in the mounting disc, so that the stable mounting of the inner shaft sleeve and the outer shaft sleeve and the stable meshing of each second transmission gear and the transmission gear ring are realized.

Further, the main shaft penetrates through the inner shaft sleeve along the length direction of the inner shaft sleeve, a first bearing is arranged between the inner circumferential surface of the rear end of the inner shaft sleeve and the main shaft in a clamped mode, a second bearing is arranged between the inner circumferential surface of the front end of the inner shaft sleeve and the main shaft in a clamped mode, and a third bearing is arranged between the outer circumferential surface of the front end of the inner shaft sleeve and the inner circumferential surface of the outer shaft sleeve in a clamped mode. Therefore, the main shaft, the inner shaft sleeve and the outer shaft sleeve can stably and synchronously rotate by arranging the first bearing, the second bearing and the third bearing.

Further, the reinforcing impeller comprises a fan blade shaft and a reinforcing impeller which is arranged around the fan blade shaft and surrounds the fan blade shaft by taking the fan blade shaft as a center, the main shaft comprises a first shaft body and a second shaft body along the length direction, the fan blade shaft is fixed at the front end of the first shaft body, the rear end of the second shaft body is fixed by an output shaft of the motor, and a clutch assembly capable of realizing separation and linkage of the first shaft body and the second shaft body is arranged at the rear end of the first shaft body and the front end of the second shaft body. The on-off control of the reinforced impeller can be realized by arranging the clutch assembly, when the first shaft body and the second shaft body are linked through the clutch assembly, the reinforced impeller can synchronously rotate along with the hot air impeller, and when the first shaft body and the second shaft body are separated, the reinforced impeller does not rotate along with the hot air impeller and is static.

Further, the steam generator is arranged outside the inner container, and a steam outlet of the steam generator is communicated with the steam inlet through a steam inlet pipe. Therefore, steam generated by the steam generator can enter the steam channel through the steam outlet, the steam inlet pipe and the steam inlet respectively and is sprayed into the hot air chamber through the steam outlet.

Furthermore, the steam generator comprises a heating pipe, a thin film resistance layer is arranged on the pipe wall of the heating pipe, one end of the heating pipe is a water inlet which is in fluid communication with the water outlet of the water tank, and the other end of the heating pipe is the steam outlet. Through setting up the thin film resistance layer, the hydroenergy that gets into the heating pipe is heated fast and is produced steam, has advantages such as the extremely fast steam of producing, power is low, small, do not knot incrustation scale.

Further, the heating pipe level sets up, and the middle part of this heating pipe is circular-arc bending downwards, and is provided with the water inlet joint of horizontal extension in the above-mentioned water inlet, is provided with the play vapour joint of vertical extension in the above-mentioned steam outlet, and wherein, above-mentioned water inlet joint passes through the delivery port intercommunication of inlet tube with above-mentioned water tank, and above-mentioned play vapour joint then communicates with above-mentioned steam inlet through above-mentioned steam inlet pipe. The heating pipe enables water entering the heating pipe to be fully contacted with the thin film resistance layer through the structural design, surface heating is achieved, and steam generation efficiency is improved.

The technical solution adopted to further solve the fifth technical problem is as follows: an oven is characterized in that the oven is provided with the cooking inner container structure with the humidifying and baking functions.

Compared with the prior art, the invention has the advantages that: the rear end of the hot air shaft tube is provided with a steam inlet, the front end of the hot air shaft tube is provided with a steam outlet, and the steam inlet is communicated with the steam outlet through a steam channel arranged in the hot air shaft tube, so when the hot air blower rotates, steam can be uniformly sprayed along the circumferential direction along with the rotation of the hot air shaft tube, and uniformly enters the inner container along with hot air through an air outlet of the hot air baffle under the action of the hot air impeller to act on food to be baked, and can flow back to the hot air chamber through an air inlet of the hot air baffle under the action of negative pressure suction force generated by the rotation of the hot air impeller to be reheated, thereby realizing the circulation of the steam in the hot air chamber and. Therefore, the steam-assisted food humidifying and baking device can realize the uniform injection of steam to food in the baking process, thereby improving the food humidifying and baking effect, especially the meat food humidifying and baking effect.

Drawings

FIG. 1 is a schematic structural view of an oven according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of an oven embodying the present invention;

FIG. 3 is a schematic structural diagram of an air heater according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view of an embodiment of the heat gun of the present invention;

FIG. 5 is an enlarged view of portion A of FIG. 2;

FIG. 6 is an enlarged view of portion B of FIG. 4;

FIG. 7 is a cross-sectional view of a heating tube in an embodiment of the invention;

fig. 8 is an exploded view of the heat blower according to the embodiment of the present invention.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 8, an oven comprises a cooking inner container structure with a humidifying and baking function and a water tank 10, wherein the cooking inner container structure comprises an inner container 1, a hot air baffle 2 with an air inlet 21 and an air outlet 22 is arranged at the rear side of the inner container 1, a hot air chamber 20 is enclosed by the hot air baffle 2 and a back plate of the inner container 1, a rear positioning plate 4 is vertically arranged at the rear side of the back plate of the inner container 1, an air heater is installed on the rear positioning plate 4, a hot air impeller 63 of the air heater is located in the hot air chamber 20, a heating pipe 3 is enclosed by the periphery of the hot air impeller 63, and the hot air impeller 63 is arranged front and back opposite to the air inlet 21 of the hot air baffle. The motor 61 of the air heater is installed on the rear surface of the positioning plate 4 through the motor bracket 10, the main shaft 62 of the air heater sequentially penetrates through the first installation hole 41 of the rear positioning plate 4 and the second installation hole 11 of the back plate of the liner 1 along the front-back direction, the rear surface of the back plate of the liner 1 is provided with the disc-shaped support frame 5, the main shaft 62 penetrates through the central hole of the support frame 5, and the sealing ring 51 is clamped between the support frame 5 and the front surface of the rear positioning plate 4 along the circumferential direction, so that the air tightness of the liner 1 is ensured.

The hot air impeller 63 includes a hot air shaft tube 631 and a hot air fan 632 surrounding the hot air shaft tube 631, wherein the hot air shaft tube 631 is coupled to the output shaft of the motor 61, a steam inlet 65a is formed at a rear end of the hot air shaft tube 631, a steam outlet 65b is formed at a front end of the hot air shaft tube 631, and the steam inlet 65a and the steam outlet 65b are communicated with each other through a steam passage 650 formed in the hot air shaft tube 631. When the hot air blower rotates, the steam can be uniformly sprayed along the circumferential direction along with the rotation of the hot air shaft tube 631, and uniformly enters the inner container 1 along with the hot air through the air outlet 22 of the hot air baffle plate 2 under the action of the hot air fan blades 632 to act on the food to be baked, and can flow back to the hot air chamber 20 through the air inlet 21 of the hot air baffle plate 2 under the action of the negative pressure suction force generated by the rotation of the hot air impeller 63 to be reheated, so that the circulation of the steam in the hot air chamber 20 and the inner container 1 is realized. Therefore, the steam-assisted food humidifying and baking device can realize the uniform injection of steam to food in the baking process, thereby improving the food humidifying and baking effect, especially the meat food humidifying and baking effect. Preferably, the steam outlet 65b includes steam injection holes 6511, and the steam injection holes 6511 are circumferentially formed at the front end of the hot air shaft tube 631, so that the steam can be more uniformly injected from the steam outlet 65b along with the rotation of the hot air shaft tube 631, and the steam can be more uniformly injected to the surface of the food.

Further, the hot air blower further includes a reinforcing impeller 64 disposed in front of the hot air impeller 63, the reinforcing impeller having a smaller radius than the hot air impeller 63, and the reinforcing impeller 64 rotating in a direction opposite to the hot air impeller 63. Therefore, the air inlet volume of the air heater can be increased by arranging the reinforcing impeller 64, the air outlet volume of the air heater and the air volume of the inner container 1 are increased, and the baking effect of the oven is improved.

Specifically, the hot air shaft tube 631 includes an inner sleeve 65, an outer sleeve 66 and a transmission assembly 7, wherein the transmission assembly 7 is used for linking the main shaft 62, the inner sleeve 65 and the outer sleeve 66, and the main shaft 62 is fixed on the output shaft of the motor 61. In this embodiment, the inner sleeve 65 and the outer sleeve 66 are both provided centering on the main shaft 62. Further, the main shaft 62 is inserted into the inner sleeve 65, the outer sleeve 66 is fitted around the inner sleeve 65, the inner sleeve 65 has a hollow structure, the inner cavity of the inner sleeve 65 forms the steam passage 650, front and rear ends of which are respectively exposed to front and rear sides of the outer sleeve 66, the rear end of the inner sleeve 65 is opened with the steam inlet 65a and the front end is opened with the steam outlet 65b, the main shaft 62 rotates in the same direction as the inner sleeve 65 but opposite to the outer sleeve 66, the hot fan blade 632 is mounted on the outer sleeve 66, and the reinforcing impeller 64 is mounted on the inner sleeve 65. This enables the synchronous rotation of the hot air impeller 63 and the reinforcement impeller 64, and the hot air impeller 63 and the reinforcement impeller 64 rotate in opposite directions. Specifically, the transmission assembly 7 includes a first transmission gear 71 mounted on the main shaft 62, a second transmission gear 72 mounted on the inner sleeve 65, and a transmission ring gear 73 circumferentially disposed on an inner circumferential surface of the outer sleeve 66, and the first transmission gear 71 is engaged with the second transmission gear 72, and the second transmission gear 72 is engaged with the transmission ring gear 73. Therefore, the synchronous rotation of the main shaft 62, the inner shaft sleeve 65 and the outer shaft sleeve 66 and the reverse rotation of the inner shaft sleeve 65 and the outer shaft sleeve 66 can be realized through the transmission assembly 7, and further the synchronous rotation and the reverse rotation of the hot air impeller 63 and the reinforcing impeller 64 are realized.

In order to stably mount the second transmission gear 72 and to engage the second transmission gear 72 with the first transmission gear 71, the inner sleeve 65 includes a first sleeve 651 and a second sleeve 652 along the axial direction, a carrier 67 is fixed between the first sleeve 651 and the second sleeve 652, the first transmission gear 71 is adjacent to the carrier 67, the second transmission gear 72 is mounted on the carrier 67, and the first sleeve 651, the second sleeve 652 and the carrier 67 are all hollow. Specifically, the gear rack 67 includes a first mounting plate 671 fixed to a rear port of the first sleeve 651 and a second mounting plate 672 fixed to a front port of the second sleeve 652, and a gear shaft 673 disposed at a circumferential interval between the first mounting plate 671 and the second mounting plate 672 and extending axially along the inner sleeve 65. That is, in the present embodiment, the first mounting plate 671, the second mounting plate 672 and the gear shaft 673 are all hollow. The second transmission gears 72 are respectively mounted on the gear shafts 673, and the first transmission gears 71 are clamped at the centers of the second transmission gears 72 and are respectively meshed with the second transmission gears 72, so that the stable mounting of the second transmission gears 72 on the inner shaft sleeve 65 and the stable meshing of the second transmission gears 72 and the first transmission gears 71 can be further realized. In this embodiment, the number of the gear shafts 673 is three, and accordingly, the number of the second transmission gears 72 is also three, thereby further ensuring stable transmission between the first transmission gear 71 and each of the second transmission gears 72.

Further, in the present embodiment, the middle portion of the outer sleeve 66 is expanded outward in the circumferential direction to form a mounting disc 661, the driving ring gear 73 is disposed on the inner circumferential surface of the mounting disc 661, and the gear rack 67 is received in the mounting disc 661, thereby achieving the stable mounting of the inner sleeve 65 and the outer sleeve 66 and the stable engagement of the second transmission gears 72 and the driving ring gear 73. The main shaft 62 is inserted into an inner port of the inner sleeve 65 along a longitudinal direction of the inner sleeve, a first bearing 91 is interposed between an inner peripheral surface of a rear end of the inner sleeve 65 and the main shaft 62, a second bearing 92 is interposed between an outer peripheral surface of a front end of the inner sleeve 65 and an inner peripheral surface of the outer sleeve 66, and a third bearing 93 is interposed between the outer peripheral surface of the front end of the inner sleeve 65 and the inner peripheral surface of the outer sleeve 66. The provision of the first bearing 91, the second bearing 92 and the third bearing 93 enables the main shaft 62, the inner hub 65 and the outer hub 66 to be stably rotated in synchronization.

Further, the impeller 64 includes a fan shaft 641 and fan blades 642 surrounding the fan shaft 641, the main shaft 62 includes a first shaft 621 and a second shaft 622 along the length direction, the fan shaft 641 is fixed to the front end of the first shaft 621, the rear end of the second shaft 622 is fixed to the output shaft of the motor 61, and the rear end of the first shaft 621 and the front end of the second shaft 622 are provided with a clutch assembly 68 capable of separating and linking the first shaft 621 and the second shaft 622, in this embodiment, the clutch assembly 68 includes a first clutch 681 disposed on the rear end of the first shaft 621 and a second clutch 682 disposed on the front end of the second shaft 622 and matched with the first clutch 681. The on-off control of the enhancing impeller 64 can be realized by arranging the clutch assembly 68, when the first shaft body 621 and the second shaft body 622 are linked through the clutch assembly 68, the enhancing impeller 64 can synchronously rotate along with the hot wind impeller 63, and when the first shaft body 621 is separated from the second shaft body 622, the enhancing impeller 64 does not rotate along with the hot wind impeller 63 and is static. In the present embodiment, the first transmission gear 71 is mounted on the second shaft body 622, and the vane shaft 641 and the first shaft body 621 are an integral component.

The water tank 10 is disposed on the top surface of the inner container 1, and a steam generator is further disposed on the top surface of the inner container 1, and a steam outlet 822 of the steam generator is communicated with the steam inlet 65a through a steam inlet pipe 84. The steam generated by the steam generator can enter the steam channel 650 through the steam outlet 822, the steam inlet pipe 84 and the steam inlet 65a in sequence, and is injected into the hot air chamber 20 through the steam outlet 65 b. In this embodiment, the steam generator includes a heating pipe 82, a thin film resistor layer 820 is disposed on a pipe wall of the heating pipe 82, and one end of the heating pipe 82 is a water inlet 821 for being in fluid communication with a water outlet of the water tank 10 (there are various ways of achieving the fluid communication here, when the water outlet of the water tank 10 is adjacent to the water inlet 821 of the heating pipe 82, the water outlet of the water tank 10 and the water inlet 821 of the heating pipe 82 can be directly communicated with each other, when the water outlet of the water tank 10 is far away from the water inlet 821 of the heating pipe 82, the water outlet of the water tank 10 and the water inlet 821 of the heating pipe 82 can be communicated with each other through a pipeline, as shown in fig. 1. Through the arrangement of the thin film resistor layer 820, water entering the heating pipe 82 can be rapidly heated to generate steam, and the steam heating device has the advantages of extremely rapid steam generation, low power, small volume, no scale formation and the like. Specifically, in the present embodiment, the tube wall of the heating tube 82 is made of quartz, and the thin film resistor layer 820 is disposed on the inner surface of the tube wall of the heating tube 82. The heating pipe 82 is horizontally disposed, the middle portion of the heating pipe 82 is bent downward in an arc shape, a water inlet connector 8211 extending horizontally is disposed in the water inlet 821, and a steam outlet connector 8221 extending vertically is disposed in the steam outlet, wherein the water inlet connector 8211 is communicated with the water outlet of the water tank 10 through a water inlet pipe 83, and the steam outlet connector 8221 is communicated with the steam inlet 65a through a steam inlet pipe 84. Through the structural design, the heating pipe 82 enables water entering the heating pipe 82 to be fully contacted with the thin film resistor layer 820, surface heating is achieved, and steam generation efficiency is improved.

Claims

1. A cooking inner container structure with humidifying and baking functions comprises an inner container (1) and a hot air blower, wherein the hot air blower comprises a motor (61) and a hot air impeller (63), a hot air baffle (2) with an air inlet (21) and an air outlet (22) is arranged at the rear side of the inner container (1), the hot air baffle (2) and a back plate of the inner container (1) form a hot air chamber (20) in a surrounding manner, the hot air impeller (63) of the hot air blower is positioned in the hot air chamber (20), a heating pipe (82) is arranged at the outer periphery of the hot air impeller (63), the cooking inner container structure is characterized in that the hot air impeller (63) comprises a hot air shaft pipe (631) and a hot air fan blade (632) which is arranged at the outer periphery of the hot air shaft pipe (631) in a surrounding manner by taking the hot air shaft pipe (631) as a center, the hot air shaft pipe (631) is linked with an output shaft of the motor (61), a steam inlet (65a) is arranged at the rear end of the hot, and the steam inlet (65a) and the steam outlet (65b) are communicated through a steam passage (650) provided in the hot blast shaft pipe (631).

2. The cooking inner container structure with humidifying and baking functions as claimed in claim 1, wherein the steam outlet (65b) comprises steam injection holes (6511), and the steam injection holes (6511) are circumferentially arranged at the front end of the hot air shaft tube (631).

3. The cooking inner container structure with humidifying and baking functions as claimed in claim 1, further comprising an enhancing impeller (64) having a radius smaller than that of the hot fan blade (632), wherein the enhancing impeller (64) is centered on the hot air shaft tube (631) and mounted at the front end of the hot air shaft tube (631), and the enhancing impeller (64) rotates in the opposite direction to the hot fan blade (632).

4. The cooking inner container structure with humidifying and baking functions as claimed in claim 3, wherein the hot air shaft tube (631) comprises a main shaft (62), an inner shaft sleeve (65), an outer shaft sleeve (66) and a transmission component (7) for linking the main shaft (62) with the inner shaft sleeve (65), the main shaft (62) is fixed on the output shaft of the motor (61), the main shaft (62) is arranged in the inner shaft sleeve (65) in a penetrating way, the outer shaft sleeve (66) is arranged outside the inner shaft sleeve (65),

the inner sleeve (65) has a hollow structure, the inner cavity of the inner sleeve (65) forms the steam passage (650), the front and rear ends of the steam passage are respectively exposed to the front and rear sides of the outer sleeve (66), the rear end of the inner sleeve (65) is provided with the steam inlet (65a) and the front end is provided with the steam outlet (65b), the rotation direction of the main shaft (62) is the same as that of the inner sleeve (65) and is opposite to that of the outer sleeve (66), the hot fan blade (632) is mounted on the outer sleeve (66), and the reinforcing impeller (64) is mounted on the inner sleeve (65).

5. The cooking inner container structure with humidifying and baking functions as claimed in claim 4, wherein the transmission assembly (7) comprises a first transmission gear (71) mounted on the main shaft (62), a second transmission gear (72) mounted on the inner sleeve (65) and a transmission gear ring (73) circumferentially arranged on the inner circumferential surface of the outer sleeve (66), and the first transmission gear (71) is engaged with the second transmission gear (72), and the second transmission gear (72) is engaged with the transmission gear ring (73).

6. The cooking inner container structure with humidifying and baking functions as claimed in claim 5, wherein the inner sleeve (65) comprises a first sleeve body (651) and a second sleeve body (652) along the axial direction, a gear rack (67) is fixed between the first sleeve body (651) and the second sleeve body (652), the first transmission gear (71) is adjacent to the gear rack (67), the second transmission gear (72) is installed on the gear rack (67), and the first sleeve body (651), the second sleeve body (652) and the gear rack (67) are all hollow structures.

7. The cooking inner container structure with humidifying and baking functions as claimed in claim 6, wherein the gear rack (67) comprises gear shafts (673) which are arranged at intervals along the circumferential direction and respectively extend along the axial direction of the inner shaft sleeve (65), the second transmission gears (72) are respectively arranged on the gear shafts (673), and the first transmission gears (71) are clamped at the centers of the second transmission gears (72) and are respectively meshed with the second transmission gears (72).

8. The structure of cooking inner container with humidifying and baking functions as claimed in claim 7, wherein the middle portion of the outer sleeve (66) is expanded outward in the circumferential direction to form a mounting disc (661), the gear ring (73) is provided on the inner circumferential surface of the mounting disc (661), and the gear rack (67) is accommodated in the mounting disc (661).

9. The cooking inner container structure with humidifying and baking functions as claimed in any one of claims 4 to 8, wherein the main shaft (62) penetrates through the inner sleeve (65) along the length direction of the inner sleeve (65), a first bearing (91) is arranged between the inner circumferential surface of the rear end of the inner sleeve (65) and the main shaft (62), a second bearing (92) is arranged between the inner circumferential surface of the front end of the inner sleeve (65) and the main shaft (62), and a third bearing (93) is arranged between the outer circumferential surface of the front end of the inner sleeve (65) and the inner circumferential surface of the outer sleeve (66).

10. The structure of cooking inner container with humidifying and baking functions as claimed in any one of claims 4 to 8, wherein the enhanced impeller (64) comprises a fan blade shaft (641) and enhanced fan blades (642) surrounding the fan blade shaft (641) as a center, the main shaft (62) comprises a first shaft body (621) and a second shaft body (622) along the length direction, the fan blade shaft (641) is fixed at the front end of the first shaft body (621), the rear end of the second shaft body (622) is fixed by the output shaft of the motor (61), and the rear end of the first shaft body (621) and the front end of the second shaft body (622) are provided with a clutch component (68) capable of realizing the separation and linkage of the first shaft body (621) and the second shaft body (622).

11. The cooking inner container structure with humidifying and baking functions as claimed in any one of claims 1 to 8, further comprising a steam generator disposed outside the inner container (1), wherein a steam outlet (822) of the steam generator is communicated with the steam inlet (65a) through a steam inlet pipe (84).

12. The cooking inner container structure with humidifying and baking functions as claimed in claim 11, wherein the steam generator comprises a heating tube (82), a thin film resistor layer (820) is disposed on the wall of the heating tube (82), and one end of the heating tube (82) is a water inlet (821) for being in fluid communication with a water outlet of the water tank (1) and the other end is the steam outlet (822).

13. The cooking inner bag structure with humidifying and baking functions as claimed in claim 12, wherein the heating pipe (82) is horizontally arranged, the middle part of the heating pipe (82) is downwards bent in an arc shape, a water inlet joint (8211) horizontally extending is arranged in the water inlet (821), a steam outlet joint (8221) vertically extending is arranged in the steam outlet (822), wherein the water inlet joint (8211) is communicated with the water outlet of the water tank (1) through a water inlet pipe (83), and the steam outlet joint (8221) is communicated with the steam inlet (65a) through the steam inlet pipe (84).

14. An oven, characterized in that, has as any claim 1 ~ 13 of the cooking inner bag structure with humidification roast function.