CN218279373U - Hot-blast water conservancy diversion inner bag structure and evaporate oven - Google Patents

Abstract

The utility model relates to a hot-blast water conservancy diversion inner bag structure and steaming and baking case, including the inner bag, install the air heater on the backplate of this inner bag, and the impeller of this air heater is arranged in the inner bag, and the internal surface upper shield of inner bag backplate is equipped with the transversal circular shape kuppe of personally submitting, and the impeller quilt cover of air heater is established in this kuppe, and the center pin of kuppe coincides mutually with the shaft of impeller, and the front of kuppe is seted up with the impeller front and back just right air intake, and the side of kuppe is spaced apart along circumference and is equipped with the air outlet. The utility model discloses at the culinary art in-process, the impeller rotates and forms the negative pressure in air outlet department, and during the hot-air in the inner bag passed through the air intake and is inhaled the kuppe, the hot-air advantage of following each air outlet circumference and back-out under the effect of impeller centrifugal force to each corner of flow to inner bag has improved the homogeneity of the inside temperature distribution of inner bag. Simultaneously, compare with current rectangle hot air baffle, the utility model provides a kuppe can reduce the flow loss of the inside hot gas flow of inner bag, avoids the wasting of resources.

Description

Hot-blast water conservancy diversion inner bag structure and evaporate oven

Technical Field

The utility model relates to a culinary art device field especially relates to a hot-blast water conservancy diversion inner bag structure and steaming and baking oven.

Background

In baking and cooking devices such as ovens and steam ovens, a hot air baffle is arranged on the rear side of an inner container, the hot air baffle and a back plate of the inner container form a hot air chamber in an enclosing mode, an impeller of a hot air blower installed on the back plate of the inner container is located in the hot air chamber, and a heating pipe is arranged on the periphery of the impeller. In the cooking process, gas in the inner container enters the hot air chamber through the air inlet on the hot air baffle, and heated hot air flows back to the inner container through the air outlet on the hot air baffle under the action of centrifugal force of the impeller, so that hot air circulation in the inner container is realized. For example, chinese patent application No. CN202111526610.1 (publication No. CN 114287789A) of "an integrated steaming and baking machine", and chinese utility model patent No. ZL202123188610.3 (publication No. CN 216776756U) "of" a hot air inner container structure and a cooking device for steaming and baking ", etc. However, the existing hot air baffle is generally rectangular in shape, which causes a problem of large air flow loss, and this loss needs to be compensated by increasing the power of the heating pipe or the power of the fan motor, resulting in resource waste. Meanwhile, the existing structure can cause the internal integral temperature distribution of the liner to be uneven (including the temperature distribution in the horizontal direction and the vertical direction), and the temperature difference between the main body area and the corner area of the liner is large.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the first technical problem that provide an even hot-blast water conservancy diversion inner bag structure of the inside temperature distribution of inner bag to prior art.

The second technical problem to be solved in the present invention is to provide a steaming and baking oven with the above-mentioned hot air guiding inner container structure.

The utility model provides a technical scheme that above-mentioned first technical problem adopted does: a hot air diversion liner structure comprises a liner, wherein a back plate of the liner is provided with a hot air blower, an impeller of the hot air blower is positioned in the liner, and the hot air diversion liner structure is characterized in that a diversion cover with a circular cross section is covered on the inner surface of the liner back plate, the impeller of the hot air blower is covered in the diversion cover, a central shaft of the diversion cover is coincided with a wheel shaft of the impeller, the front surface of the diversion cover is provided with an air inlet which is right opposite to the front and the back of the impeller, and the side surface of the diversion cover is provided with air outlets at intervals along the circumferential direction.

Furthermore, the guide cover is provided with guide vanes which are in one-to-one correspondence with the air outlets and extend forwards and backwards along the circumferential direction of the impeller, one end of each guide vane is respectively fixed with a rotating shaft which extends forwards and backwards, each rotating shaft can respectively move back and forth along the circular-arc-shaped guide groove synchronously or independently, moreover, each rotating shaft is positioned at one end of the corresponding guide groove, each guide vane is spliced into a circular ring body which is arranged around the periphery of the impeller, each rotating shaft is positioned at the other end of the corresponding guide groove, each guide vane is respectively and transversely arranged between the impeller and the side wall of the guide cover, and each air outlet is respectively positioned between two adjacent guide vanes. Therefore, the air outlet direction and the air outlet speed of each air outlet can be adjusted through the action of each flow deflector, so that the flow field in the inner container can be better adjusted, and the cooking effect on food is further improved.

Furthermore, the radius of a ring body formed by splicing the flow deflectors is larger than that of the air inlet of the flow guide cover. Thereby avoiding the influence of each flow deflector on the air inlet of the flow guide cover and ensuring the air inlet amount of the flow guide cover.

Furthermore, the central angle of each guide groove is 90 degrees, and the centers of the guide grooves are all positioned on the same circle with the radius smaller than that of the impeller. Therefore, the angles of the guide vanes can be better adjusted according to cooking requirements.

Furthermore, the air guide sleeve is cylindrical in shape and horizontally arranged along the front-back direction, the rear wall of the air guide sleeve is fixed on the back plate of the inner container, the center of the rear wall is provided with a mounting hole which is matched with the impeller in size and is used for the impeller to be arranged, the air inlet is arranged at the center of the front wall of the air guide sleeve, the air outlets are circumferentially arranged on the side wall of the air guide sleeve at intervals and are square holes extending front and back respectively, and the guide grooves are respectively arranged on the rear wall of the air guide sleeve.

Furthermore, the center of the front wall of the air guide sleeve is smoothly protruded forwards along the circumferential direction to form an air guide ring, the front port of the air guide ring forms the air inlet, and the radius of the cross section of the air guide ring increases from front to back. Therefore, hot air in the inner container can be better guided into the air guide sleeve through the air inlet by utilizing the adherence effect.

Furthermore, the ratio of the radius of the air guide sleeve to the height of the air guide sleeve in the front-back direction is 1.2, and the ratio of the radius of the air guide sleeve to the radius of the impeller is 0.7, so that hot air entering the air guide sleeve can be better guided out of the air guide sleeve through the air outlet under the action of centrifugal force, and the flow loss inside the air guide sleeve is avoided.

Further, the guide vane device also comprises a driving assembly used for driving the rotating shafts of the guide vanes to synchronously or independently rotate. Thereby realizing the synchronous action or the independent action of each guide vane.

Further, the driving assembly comprises a disc-shaped base and a second motor, the first motor of the air heater is installed at the center of the base, the second motor is in one-to-one correspondence with the flow deflectors and is circumferentially arranged on the base at intervals by taking the first motor as a center, and rotating shafts of the flow deflectors are respectively fixed with output shafts of the corresponding first motors.

The technical solution adopted to further solve the second technical problem is as follows: a cooking device is characterized in that the hot air guide inner container structure is adopted.

Compared with the prior art, the utility model has the advantages of: the utility model discloses in be provided with the kuppe, the impeller of air heater is arranged in this kuppe, and the front of this kuppe has seted up the air intake and the air outlet has been seted up along the circumference interval to the lateral wall. In the cooking process, the impeller rotates to form negative pressure at the air inlet, hot air in the inner container is sucked into the flow guide cover through the air inlet, and the hot air is circumferentially screwed out from the air outlets under the action of centrifugal force of the impeller, so that the hot air flows to all corners of the inner container, and the uniformity of the temperature distribution in the inner container is improved. Simultaneously, compare with current rectangle hot air baffle, the utility model provides a kuppe can reduce the flow loss of the inside hot gas flow of inner bag, avoids the wasting of resources.

Drawings

Fig. 1 is a schematic structural view of a hot air diversion liner structure in an embodiment of the present invention;

FIG. 2 is a sectional view of the hot air guiding inner container according to the embodiment of the present invention;

fig. 3 is an exploded view of the hot air guiding inner container structure in the embodiment of the present invention;

fig. 4 is a cross-sectional view of the hot air diversion liner structure in another direction in the embodiment of the present invention;

fig. 5 is a schematic view of a partial structure of a hot air diversion liner structure in an embodiment of the present invention;

fig. 6 is a schematic structural view of the air guide sleeve in the embodiment of the present invention;

fig. 7 is a schematic structural diagram of a driving assembly according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship indicated based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, since the disclosed embodiments of the invention can be arranged in different orientations, these directional terms are for illustrative purposes only and should not be considered as limiting, e.g., "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

As shown in fig. 1 to 7, a steaming and baking box includes a hot air guiding inner container structure, the hot air guiding inner container structure includes an inner container 1, a hot air blower 2 is installed on a back plate of the inner container 1, and an impeller 21 of the hot air blower 2 is located in the inner container 1. The inner surface of the back plate of the inner container 1 is covered with a guide cover 3 with a circular cross section, the impeller 21 of the air heater 2 is covered in the guide cover 3, the central shaft of the guide cover 3 coincides with the wheel shaft of the impeller 21, the front of the guide cover 3 is provided with an air inlet 310 which is right opposite to the front and the back of the impeller 21, and the side of the guide cover 3 is provided with air outlets 32 at intervals along the circumferential direction. In the cooking process, the impeller 21 rotates to form negative pressure at the air inlet 310, the hot air in the liner 1 is sucked into the air guide sleeve 3 through the air inlet 310, and the hot air is circumferentially screwed out from each air outlet 32 under the action of the centrifugal force of the impeller 21 so as to flow to each corner of the liner 1, so that the uniformity of the temperature distribution in the liner 1 is improved. Simultaneously, compare with current rectangle hot air baffle, the utility model provides a kuppe 3 can reduce the flow loss of the inside hot gas flow of inner bag 1, avoids the wasting of resources. And, the utility model provides a hot-blast water conservancy diversion inner bag structure need not to set up the back heating pipe, and heating pipe and heating plate can satisfy the inside thermal demand of inner bag 1 about the dependence.

Specifically, the air guide sleeve 3 is cylindrical and horizontally arranged along the front-rear direction, the rear wall of the air guide sleeve 3 is fixed on the back plate of the inner container 1, the center of the rear wall is provided with an installation opening 33 which is matched with the size of the impeller 21 and is used for the impeller 21 to be arranged, the air inlet 310 is arranged at the center of the front wall of the air guide sleeve 3, and the air outlets 32 are circumferentially arranged on the side wall of the air guide sleeve 3 at intervals and are square holes extending front and rear respectively. Preferably, in this embodiment, the length of each air outlet 32 in the front-back direction solves the height of the air guide sleeve 3 in the front-back direction, so that on one hand, the air output of each air outlet 32 can be increased, thereby accelerating the speed of the hot air circulation inside the liner 1, and on the other hand, the flow loss of the air flow inside the air guide sleeve 3 can be reduced.

Furthermore, the guide cover 3 is provided with guide vanes 4 extending back and forth in a one-to-one correspondence with the air outlets 32 along the circumferential direction around the impeller 21, one end of each guide vane 4 is fixed with a rotating shaft 5 extending back and forth, and each rotating shaft 5 can move back and forth synchronously or independently along the circular-arc-shaped guide groove 35, and each guide vane 4 is spliced into a circular ring body (not shown) surrounding the periphery of the impeller 21 when each rotating shaft 5 is located at the inner end of the corresponding guide groove 35, and each guide vane 4 is transversely arranged between the impeller 21 and the side wall of the guide cover 3 when each rotating shaft 5 is located at the outer end of the corresponding guide groove 35, and each air outlet 32 is located between two adjacent guide vanes 4. Therefore, the air outlet direction and the air outlet speed of each air outlet 32 can be adjusted through the action of each flow deflector 4, so that the flow field inside the inner container 1 can be better adjusted, and the cooking effect on food is further improved. Specifically, in the preheating stage of cooking, each flow deflector 4 acts synchronously to form the same angle (the rotating shaft 5 of each flow deflector 4 is located at the outer end of the corresponding guide groove 35), and at this time, the outlet air of the impeller 21 can flow to the corresponding air outlet 32 quickly under the guidance of the cambered surfaces of the flow deflectors 4 on the two sides, which is beneficial to quickly and uniformly heating the inner container 1. And when getting into the maintenance stage by preheating the stage, each water conservancy diversion piece 4 is synchronous or independent turned angle according to the culinary art needs, does benefit to direction and the circulation mixing to the hot gas flow, further realizes the homogeneity of the inside temperature distribution of inner bag 1, improves culinary art efficiency, promotes the culinary art effect, has solved current hot wind baffle and can only be with the problem of fixed direction air-out at the culinary art in-process. In addition, during the steaming function (at this time, the hot air heater 2 does not rotate), steam can be prevented from entering the air guide sleeve 3 by splicing the guide vanes 4 into a ring body, and when the steaming function is finished, the hot air heater 2 is opened, residual steam in the liner 1 is sucked into the air guide sleeve 3 through the air inlet 310, and collides with the guide vanes 4 (keeping the ring body state) violently under the action of the centrifugal force of the impeller 21 to be condensed, so that the problem of direct injection of the steam for opening the door is avoided. In this embodiment, it is preferable that the number of the flow deflectors 4 is eight, and accordingly, the number of the air outlets 32 is eight.

Preferably, the radius of the ring body formed by splicing the guide vanes 4 is larger than the radius of the air inlet 310 of the air guide sleeve 3, so that the influence of the guide vanes 4 on the air inlet of the air guide sleeve 3 can be avoided, and the air inlet amount of the air guide sleeve 3 is ensured. The central angle of each guide groove 35 is 90 °, and the center of each guide groove 35 is located on the same circle with a radius smaller than that of the impeller 21, so that the angle of each guide vane 4 can be better adjusted according to cooking requirements. In this embodiment, the guide grooves 35 are formed in the rear wall of the nacelle 3.

Further, preferably, the center of the front wall of the air guide sleeve 3 is rounded and protruded forward along the circumferential direction to form a guide ring 31, the front end of the guide ring 31 forms the air inlet 310, and the radius of the cross section of the guide ring 31 increases from front to back. Therefore, the hot air in the liner 1 can be better guided into the air guide sleeve 3 through the air inlet 310 by utilizing the adherence effect. Preferably, the ratio of the radius of the air guide sleeve 3 to the height of the air guide sleeve along the front-back direction is 1.2, and the ratio of the radius of the air guide sleeve 3 to the radius of the impeller 21 is 0.7, so that the hot air entering the air guide sleeve 3 can be better guided out of the air guide sleeve 3 through the air outlet 32 under the action of centrifugal force, and the flow loss inside the air guide sleeve 3 is avoided.

In addition, the device also comprises a driving component which is used for driving the rotating shaft 5 of each guide vane 4 to synchronously or independently rotate, thereby realizing the synchronous action or the independent action of each guide vane 4. Specifically, as shown in fig. 7, in the present embodiment, the driving assembly 6 includes a disc-shaped base 60 and a second motor 62, the first motor 61 of the air heater 2 is installed at the center of the base 60, the second motors 62 are in one-to-one correspondence with the baffles 4 and are circumferentially spaced on the base 60 around the first motor 61, and the rotating shaft 5 of each baffle 4 is fixed to the output shaft of the corresponding first motor 61. The first motor 61 and each second motor 62 are independently controlled, and each second motor 62 is also independently controlled, so that synchronous rotation or independent rotation of the rotating shaft 5 of each guide vane 4 can be realized.

Claims (9)

1. A hot air diversion liner structure comprises a liner (1), wherein a back plate of the liner (1) is provided with a hot air blower (2), an impeller (21) of the hot air blower (2) is positioned in the liner (1), and the hot air diversion liner structure is characterized in that a diversion cover (3) with a circular cross section is covered on the inner surface of the back plate of the liner (1), the impeller (21) of the hot air blower (2) is covered in the diversion cover (3), the central shaft of the diversion cover (3) is coincided with a wheel shaft of the impeller (21), the front surface of the diversion cover (3) is provided with an air inlet (310) which is right in front and back with the impeller (21), and the side surface of the diversion cover (3) is provided with air outlets (32) at intervals along the circumferential direction.

2. The hot air flow guiding liner structure according to claim 1, wherein flow guiding sheets (4) which correspond to the air outlets (32) one by one and extend forward and backward are circumferentially arranged around the impeller (21) in the flow guiding cover (3), one end of each flow guiding sheet (4) is fixed with a rotating shaft (5) which extends forward and backward, each rotating shaft (5) can move back and forth along a circular guide groove (35), each rotating shaft (5) is located at one end of the corresponding guide groove (35), each flow guiding sheet (4) is spliced into a circular ring body which surrounds the periphery of the impeller (21), each rotating shaft (5) is located at the other end of the corresponding guide groove (35), each flow guiding sheet (4) is respectively and transversely separated between the impeller (21) and the side wall of the flow guiding cover (3), and each air outlet (32) is located between two adjacent flow guiding sheets (4).

3. The hot air flow guiding liner structure according to claim 2, wherein the radius of the ring body formed by splicing the flow deflectors (4) is larger than that of the air inlet (310) of the air guide sleeve (3).

4. The hot air flow guiding inner container structure according to claim 2, wherein the central angle of each guide groove (35) is 90 °, and the centers of the guide grooves (35) are located on the same circle having a smaller radius than the impeller (21).

5. The hot air flow guiding liner structure according to claim 2, 3 or 4, wherein the air guiding cover (3) is cylindrical in shape and horizontally arranged along the front-back direction, the rear wall of the air guiding cover (3) is fixed on the back plate of the liner (1), the center of the rear wall is provided with a mounting opening (33) which is matched with the size of the impeller (21) and is used for arranging the impeller (21), the air inlet (310) is arranged at the center of the front wall of the air guiding cover (3), the air outlets (32) are arranged on the side wall of the air guiding cover (3) at intervals along the circumferential direction and are square holes respectively extending front and back, and the guide grooves (35) are respectively arranged on the rear wall of the air guiding cover (3).

6. The hot air flow guiding liner structure according to claim 5, wherein the center of the front wall of the air guiding cover (3) is rounded and protruded forward along the circumferential direction to form a flow guiding ring (31), the front end of the flow guiding ring (31) forms the air inlet (310), and the radius of the cross section of the flow guiding ring (31) increases from front to back.

7. A hot air flow guiding inner container structure according to claim 2, 3 or 4, characterized in that, the structure further comprises a driving component (6) for driving the rotating shafts (5) of the flow guiding sheets (4) to rotate synchronously or independently.

8. The structure of the hot air guiding inner container as claimed in claim 7, wherein the driving assembly (6) comprises a disc-shaped base (60) and a second motor (62), the first motor (61) of the hot air blower (2) is installed at the center of the base (60), the second motor (62) is in one-to-one correspondence with the guiding blades (4) and is circumferentially arranged on the base (60) at intervals around the first motor (61), and the rotating shaft (5) of each guiding blade (4) is fixed with the output shaft of the corresponding first motor (61).

9. A steaming and baking oven characterized in that the hot air flow guiding inner container structure is as claimed in any one of claims 1 to 8.

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