CN112493876A

CN112493876A - Micro steaming and baking device

Info

Publication number: CN112493876A
Application number: CN202011393905.1A
Authority: CN
Inventors: 刘连程; 王林海; 曾祥明; 刘超; 盖晓丹; 毛丹
Original assignee: Qingdao Xingbang Oven Co ltd
Current assignee: Qingdao Xingbang Oven Co ltd
Priority date: 2020-12-02
Filing date: 2020-12-02
Publication date: 2021-03-16

Abstract

The invention relates to a micro steaming and baking device which comprises a box body, a door body, a cooking cavity and an electric chamber, wherein the cooking cavity and the electric chamber are arranged front and back along the depth direction of the box body, the electric chamber is positioned behind the cooking cavity and is internally provided with two heat dissipation fans which are arranged up and down, the micro steaming and baking device also comprises a heat dissipation air duct system, and the heat dissipation air duct system comprises a main air duct structure for heat dissipation of the electric chamber, a left air duct structure, a right air duct structure and a top air duct structure which are respectively positioned at the two sides and the top of the cooking cavity and are communicated with the main air duct. In the invention, because the electric room is arranged at the rear, two heat dissipation fans which are arranged up and down can be assembled in enough space to provide sufficient heat dissipation air volume; through the setting of a plurality of wind channel structures for under two radiator fan's effect, carry out effective control to the electric component temperature rise in the electric room, all cool off the left side, the right side and the top of box simultaneously, change the temperature rise on box shell surface.

Description

Micro steaming and baking device

Technical Field

The invention relates to the technical field of household appliances, in particular to a micro steaming and baking device.

Background

In the prior art, the micro steaming and baking device is arranged up and down, namely, the cooking cavity and an electric room integrated with electric parts are arranged in an up-down partition mode. Such layout structure makes the bottom space comparatively narrow, only can arrange single power heat dissipation, and the bottom air inlet is limited, and the radiating effect is poor, causes the device thermal efficiency low and operating temperature to rise to make whole device can not last high power operation for a long time.

Disclosure of Invention

Therefore, the invention provides a micro steaming and baking device which is reasonable in layout and can effectively dissipate heat.

In order to achieve the purpose, the invention provides a micro steaming and baking device which comprises a box body, a door body, a cooking cavity and an electric chamber, wherein the cooking cavity and the electric chamber are positioned in the box body, the cooking cavity and the electric chamber are arranged in the front and back direction of the depth direction of the box body, the electric chamber is positioned behind the cooking cavity, two heat dissipation fans are arranged in the electric chamber in an up-and-down mode, the micro steaming and baking device further comprises a heat dissipation air duct system, and the heat dissipation air duct system comprises a main air duct structure used for heat dissipation of the electric chamber, a left air duct structure, a right air duct structure and a top air duct structure, wherein the left air duct structure, the right air duct structure and the.

In the invention, because the electric room is arranged at the rear, two heat dissipation fans which are arranged up and down can be assembled in enough space to provide sufficient heat dissipation air volume; through the setting of a plurality of wind channel structures for under two radiator fan's effect, carry out effective control to the electric component temperature rise in the electric room, all cool off the left side, the right side and the top of box simultaneously, change the temperature rise on box shell surface.

Further, the main air duct structure comprises a main heat dissipation air duct, a side air inlet, a rear air inlet, a side air outlet and a rear air outlet, wherein the main heat dissipation air duct is formed by a cavity of the electric room, the side air inlet and the rear air inlet are formed at one end of the electric room, and the side air outlet and the rear air outlet are formed at the other end of the electric room.

Through the structure, the air suction device can suck air in an external environment into the main radiating air duct through the side air inlet and the rear air inlet under the action of the two radiating fans, and after cooling the electric parts in the electric room, the air is discharged to the outside of the electric room through the side air outlet and the rear air outlet.

Still further, the left air duct structure comprises a left air inlet formed on the left front side of the outer shell of the box body, a left heat dissipation air duct formed between the outer shell and the inner shell of the box body, and an upper air outlet used for communicating the left heat dissipation air duct with the main heat dissipation air duct, wherein the upper air outlet is formed on the left upper side of the rear plate of the cooking cavity and is positioned between the two heat dissipation fans and the side air inlet.

Through the structure, under the action of the two heat dissipation fans, air in the external environment can enter the left heat dissipation air channel through the left air inlet, and then is sucked into the main heat dissipation air channel through the upper air outlet and is mixed with air in the external environment entering the main heat dissipation air channel through the side air inlet and the rear air inlet. The air of external environment can take away the left heat in the box shell promptly at the in-process that the left side heat dissipation wind channel was interior flowed through, avoids the shell left side temperature rise of box.

And the top air channel structure comprises an upper air inlet, an annular heat dissipation air channel formed between a top plate of the outer shell and a top plate of the inner shell and an upper air outlet, wherein the upper air inlet is formed at the right upper side of a rear plate of the cooking cavity and is positioned between the two heat dissipation fans and the side air outlet, and the upper air inlet and the upper air outlet are set to ensure that air flow of the main heat dissipation air channel enters the annular heat dissipation air channel through the upper air inlet under the action of the two heat dissipation fans and then returns to the main heat dissipation air channel through the upper air outlet.

Through the structure, the air flow can take away the heat on the inner side of the top of the shell of the box body under the action of the two cooling fans and in the process of flowing through the annular cooling air duct, and the temperature rise of the top of the shell of the box body is avoided.

Furthermore, the right air duct structure comprises a right air outlet formed on the right front side of the outer shell of the box body, a right heat dissipation air duct formed between the outer shell and the inner shell of the box body, and a right air inlet used for communicating the right heat dissipation air duct with the main heat dissipation air duct, wherein the right air inlet is formed on the right middle lower side of the rear plate of the cooking cavity and is positioned between the two heat dissipation fans and the side air outlet.

Through the structure, under the action of the two cooling fans, air flow in the main cooling air duct can enter the right cooling air duct through the right air inlet and then is discharged to the external environment through the right air outlet. The heat on the right side in the box body shell can be taken away in the process that the air flow flows through the right side heat dissipation air duct, and the temperature rise on the right side of the shell of the box body is avoided.

Still further, the electric room is including controlling heat dissipation district and electric spare part district that control left and right sides distributes, has arranged circuit board and two cooling fan in this control heat dissipation district to, side air intake and back air inlet are located this control heat dissipation district, and side air outlet and back air outlet are located electric spare part district.

Through the structure, the circuit board can be cooled by air from the external environment firstly under the action of the cooling fan, and temperature rise is avoided.

Still further, the electric parts area is arranged with a steam generating module, a magnetron, a frequency converter or a transformer and a high-voltage capacitor, wherein the steam generating module and the frequency converter or the steam generating module and the high-voltage capacitor are arranged on the inner upper side of the electric parts area; and a magnetron, or a magnetron and a transformer, disposed on an outer lower side of the electric part region.

Through the structure, the electric parts are arranged in a staggered manner in the spatial arrangement, so that the main radiating air channel is smooth, each electric part can be cooled most effectively, and heat blockage is avoided and cannot be dissipated.

Still further, a primary heater assembly is included, wherein the primary heater assembly includes two primary heating tubes longitudinally arranged in a laterally spaced manner above the cooking chamber.

Because the main heating pipe is longitudinally arranged, the heat is transversely radiated, and the direct radiation to the door body is avoided, so that the phenomenon that the surface temperature of the door body is raised is avoided on one hand, and the waste of heat is reduced on the other hand, and the cooking effect is better.

The hot air side structure comprises a hot air side motor arranged on the left side plate of the inner shell of the box body, a hot air side fan in driving connection with the hot air side motor, an air suction opening and an air supply opening, wherein the air suction opening and the hot air side fan are arranged in a right-to-right mode, and the air supply opening is arranged on the periphery of the air suction opening.

Through this side hot-blast structure setting of heat for side hot-blast fan can be through the hot-blast extraction of suction opening in with the culinary art intracavity, and send the hot-blast back culinary art chamber of will drawing out again through the supply-air outlet, thereby stir the hot-blast of culinary art intracavity, make the heating more even, and because side hot-blast fan suction wind direction and the parallel nothing of main heating pipe's radiation direction are crossed, can not appear the air pressure point in the culinary art chamber, it is effectual to bake.

Still further, the side hot air structure further comprises a side heating pipe which is arranged corresponding to the air supply outlet and is arranged around the side hot air fan.

Through the setting of side heating pipe, can make the hot-blast back of getting the heating of following the culinary art chamber of taking out, guarantee the heating effect better.

These and other aspects of the invention are apparent from and will be elucidated with reference to the embodiments described hereinafter.

Drawings

The structure and further objects and advantages of the present invention will be better understood by the following description taken in conjunction with the accompanying drawings, in which like reference characters identify like elements, and in which:

FIG. 1 is a schematic perspective view of a micro-steaming device according to an embodiment of the present invention;

FIG. 2 is an exploded perspective view of the micro-steaming device shown in FIG. 1;

FIG. 3 is a perspective view of the micro-steaming device shown in FIG. 2, viewed from the rear left, after the outer shell and the outer rear plate are removed;

FIG. 4 is a perspective view of the micro steaming device shown in FIG. 3, as viewed from the front right, after the door is removed;

FIG. 5 is a schematic perspective view of the micro steaming device shown in FIG. 2 after the door is opened and the outer shell is removed;

FIG. 6 is a top view of the micro-steaming device shown in FIG. 1 with the outer casing removed, but with the frequency converter in the electric chamber replaced with a transformer and a high voltage capacitor;

FIG. 7 is a cross-sectional view of the micro-steaming device shown in FIG. 1, showing a main heating pipe and a side hot air structure;

fig. 8 schematically shows a layout of a main heating pipe and a side hot air fan of a side hot air structure in fig. 7 in the entire micro-steaming and baking apparatus.

Detailed Description

Embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in fig. 1 to 5, the micro-steaming and baking apparatus according to an embodiment of the present invention includes a cabinet 1, a door 3, a cooking cavity 2 and an electrical chamber 4 in the cabinet 1, wherein the cooking cavity 2 and the electrical chamber 4 are arranged in front of and behind in a depth direction of the cabinet 1; the electric room 4 is located behind the cooking cavity 2, and two heat dissipation fans 47 are installed in the electric room.

As shown in fig. 6, the micro steaming and baking device further includes a heat dissipation air duct system, which includes a main air duct structure 400 for dissipating heat of the electrical room 4, a top air duct structure 500, a left air duct structure 700, and a right air duct structure 800, which are respectively located at two sides and a top of the cooking cavity 2 and are communicated with the main air duct structure 400.

As shown in fig. 1 to 3, and referring to fig. 6, the main air duct structure 400 includes a main heat dissipation air duct 40, a side air inlet 81, a rear air inlet 82, a side air outlet 83, and a rear air outlet 84, wherein the main heat dissipation air duct 40 is formed by a cavity of the electrical chamber 4, the side air inlet 83 and the rear air inlet 84 are formed at one end (left end viewed from the front to the rear of the micro-steaming and baking device) of the electrical chamber 4, and the side air outlet 83 and the rear air outlet 84 are formed at the other end (right end) of the electrical chamber.

Specifically, in the present embodiment, as shown in fig. 1 to 3, a portion of the housing 1 located outside the electrical room 4 includes an inner bottom plate 48, a rear plate 132, an outer rear plate 130, and a U-shaped housing 10 with a downward opening, and an inner cavity formed between the inner bottom plate 48, the rear plate 132, the outer rear plate 130, and the U-shaped housing 10 constitutes the electrical room 4. As shown in fig. 1 to 3, the outer rear plate 130 is provided with a rear air inlet 82 and a rear air outlet 84; the two side plates of the U-shaped housing 10, i.e. the left side plate 102 and the right side plate 103, are respectively provided with a side air inlet 81 and a side air outlet 83.

As shown in fig. 1 to 3, and referring to fig. 6, the left air duct structure 700 includes a left air inlet 72 formed on the left front side of the outer casing 10 of the cabinet 1, a left heat dissipation air duct 17 formed between the outer casing 10 and the inner casing 12 of the cabinet 1, and an upper air outlet 85 for communicating the left heat dissipation air duct 17 with the main heat dissipation air duct 40, wherein the upper air outlet 85 is formed on the left upper side of the rear plate 132 of the cooking cavity 2 and is located between the two heat dissipation fans 47 and the side air inlet 81.

As shown in fig. 1 to 3, and referring to fig. 6, the top air duct structure 500 includes an upper air inlet 86, an annular heat dissipation air duct 87 formed between the top plate 101 of the outer casing 10 and the top plate 120 of the inner casing 12, and an upper air outlet 85, wherein the upper air inlet 86 is formed at the upper right side of the rear plate 132 of the cooking cavity 2 and is located between the two heat dissipation fans 47 and the side air outlets 83, and the upper air inlet 86 and the upper air outlet 85 are arranged such that the air flow of the main heat dissipation air duct 40 enters the annular heat dissipation air duct 87 through the upper air inlet 86 and then returns to the main heat dissipation air duct 40 through the upper air outlet 85 under the action of the two heat dissipation fans 47.

As shown in fig. 1 to 4, and referring to fig. 6, the right air duct structure 800 includes a right air outlet 74 formed on the right front side of the outer shell 10 of the cabinet 1, a right heat-dissipating air duct 89 formed between the outer shell 10 and the inner shell 12 of the cabinet 1, and a right air inlet 88 for communicating the right heat-dissipating air duct 89 with the main heat-dissipating air duct 40. As shown in fig. 4, the right air inlet 88 is formed at the lower right middle side of the rear plate 132 of the cooking chamber 2 between the two heat dissipation fans 47 and the side air outlet 83.

As shown in fig. 3 and 5, and referring to fig. 6, the electrical room 4 includes a control heat dissipation area 44 and an electrical component area 46 distributed from left to right, and two heat dissipation fans 47 and a circuit board 49 are disposed in the control heat dissipation area 44. In the present embodiment, as shown in fig. 3, the electric parts area 46 is arranged with the magnetron 41, the steam generation module 42, and the frequency converter 45, wherein the steam generation module 42 and the frequency converter 45 are arranged at an inner upper side of the electric parts area 46 and mounted on the rear plate 132 of the cooking cavity 2; the magnetron 41 is disposed on the outer lower side of the electric parts region 46 and is mounted on the inner bottom plate 48 of the electric room 4. As shown in fig. 1, 2 and 5, the side air inlet 81 and the rear air inlet 82 are located in the heat dissipation control region, and the side air outlet 83 and the rear air outlet 84 are located in the electric component region. It should be noted that in another embodiment, the frequency converter 45 may be replaced by a transformer 450 and a high-voltage capacitor 451, as shown in fig. 6, and in this embodiment, the steam generation module 42 and the high-voltage capacitor 451 are disposed on the inner upper side of the electrical component area 46; the magnetron 41 and the transformer 450 are disposed on the outer lower side of the electric component region 46.

In addition, as shown in fig. 7, the micro steaming device of the present embodiment further includes a main heater assembly including two main heating pipes 5, the two main heating pipes 5 being longitudinally arranged above the cooking cavity 2 in a laterally spaced manner.

As shown in fig. 7, and referring to fig. 3 and 4, in the present embodiment, the micro-steaming and baking apparatus further includes a side hot air structure 7, and the side hot air structure 7 includes a side hot air motor 71 installed on the left side of the inner casing 12 of the cabinet 1, a side hot air fan 73 drivingly connected by the side hot air motor 71, an air suction opening 141 and an air supply opening 143 provided on the left side of the inner container 14 of the cabinet 1, as shown in fig. 4. Preferably, in the present embodiment, the suction port 141 is provided to face the side hot air fan 73, and the blowing port 143 is arranged around the suction port 141. As shown in fig. 7, in the present embodiment, the side heat wind structure 7 further includes a side heating pipe 75, and the side heating pipe 75 is provided corresponding to the air blowing port 143 and is arranged around the side heat wind fan 73.

As shown in fig. 8, in the present embodiment, the main heating pipe 5 is longitudinally arranged, so as to laterally radiate heat (as shown by the arrow in the figure), thereby avoiding direct radiation to the door body 3, thus on one hand, avoiding the phenomenon of temperature rise on the surface of the door body, on the other hand, reducing the waste of heat, and making the cooking effect better; the side hot air fan 73 draws out the hot air in the cooking chamber 2 through the suction port 141 and re-feeds the drawn-out hot air back to the cooking chamber 2 through the blowing port 143, thereby stirring the air flow in the cooking chamber 2 and making the heating more uniform. Since the suction direction of the side hot air fan 73 is parallel to and does not intersect with the radiation direction of the main heating pipe 5, no air pressure point occurs in the cooking chamber 2, thereby ensuring a good baking effect.

It should be noted that, as shown in fig. 3, since the side hot air motor 71 is located in the left side heat-dissipating air duct 17, when air in the external environment enters the left side heat-dissipating air duct 17 through the left air inlet 72, the side hot air motor 71 will be cooled and dissipated naturally; as shown in fig. 2, since the heat generating components such as the lighting device 80 are mounted on the right side of the inner casing 12 of the housing 1, when the air flow enters the right side air duct 89 from the main air duct 40 through the upper air inlet 86 (see fig. 3), the heat generating components are cooled, so as to effectively avoid the heat generating components from heating the surface of the housing.

In addition, as shown in fig. 1 and 2, the water tank 21 and the waste water collecting box 23 are installed at the bottom of the cooking cavity 2, and since no electric room is installed at the bottom of the cooking cavity 2, there is enough space for installing the water tank 21 with enough capacity, and the condensed water from the cooking cavity 2 can directly flow into the waste water collecting box 23 to be collected, so that there is no risk of flowing into the electric room 4.

Referring now to fig. 6, and with reference to fig. 1-5 and 7, the operation of the heat dissipation duct system will be described:

referring to the direction of the arrows in FIG. 6, these are the direction of the airflow;

under the action of the two heat dissipation fans 47, air in the external environment enters the main heat dissipation air duct 40 through the side air inlet 81 and the rear air inlet 82, and sequentially cools and cools the circuit board 49 in the control heat dissipation area 44, the magnetron 41 in the electrical component area 46 and other electrical components;

meanwhile, air in the external environment enters the left side heat dissipation air duct 17 through the left air inlet 72, and after the surface of the side hot air motor 71 and the inner shell 12 is subjected to heat dissipation, the air is sucked into the main heat dissipation air duct 40 of the electrical room 4 through the upper air outlet 85 and is mixed with air in the external environment entering the main heat dissipation air duct 40 through the side air inlet 81 and the rear air inlet 82;

the mixed air is used for radiating the electric components in the electric room 4 along the main radiating air duct 40, and then a part of the mixed air is directly discharged to the external environment through the side air outlet 83 and the rear air outlet 84;

the other part of the air enters the annular heat dissipation air duct 87 through the upper air outlet 86, cools the top 120 of the inner shell 12 of the box body 1, and returns to the main heat dissipation air duct 40 through the upper air inlet 85;

and a part of air enters the right side heat dissipation air duct 89 through the right air inlet 88, dissipates heat of heating devices such as the lighting lamp 80 arranged on the right side of the micro steaming and baking device, and is discharged to the external environment through the right air outlet 74.

While the invention has been described with respect to the foregoing technical disclosure and features, it will be understood that various changes and modifications in the above structure, including combinations of features disclosed herein either individually or as claimed, and obviously including other combinations of such features, may be resorted to by those skilled in the art, without departing from the spirit of the invention. Such variations and/or combinations are within the skill of the art to which the invention pertains and are within the scope of the following claims.

Claims

1. The utility model provides a evaporate roast device a little, the power distribution box comprises a box body, a door body, be located culinary art chamber and the electric room in the box, a serial communication port, culinary art chamber and electric room are arranged around box depth direction, the electric room is located the rear in culinary art chamber, and two cooling fan who arrange about the electric room is built-in, wherein, should evaporate roast device a little still includes heat dissipation air duct system, this heat dissipation air duct system is including being used for the radiating main air duct structure of electric room, be located culinary art chamber both sides and top respectively and with the left side air duct structure that the main air duct structure is linked together, right side air duct structure and top air duct structure.

2. The micro-steaming device as claimed in claim 1, wherein the main air duct structure comprises a main heat dissipation air duct, a side air inlet and a rear air inlet, a side air outlet and a rear air outlet, wherein the main heat dissipation air duct is formed by a cavity of the electrical chamber, the side air inlet and the rear air inlet are formed at one end of the electrical chamber, and the side air outlet and the rear air outlet are formed at the other end of the electrical chamber.

3. The micro steaming and baking device according to claim 2, wherein the left air duct structure comprises a left air inlet formed on a left front side of the outer casing of the cabinet, a left heat dissipation air duct formed between the outer casing and the inner casing of the cabinet, and an upper air outlet for communicating the left heat dissipation air duct and the main heat dissipation air duct, wherein the upper air outlet is formed on a left upper side of the rear plate of the cooking cavity and is located between the two heat dissipation fans and the side air inlet.

4. The micro-steaming and baking device according to claim 3, wherein the top air duct structure comprises an upper air inlet formed at an upper right side of the rear plate between the two heat dissipation fans and the side air outlet, an annular heat dissipation air duct formed between the top plate of the outer casing and the top plate of the inner casing, and the upper air outlet, the upper air inlet and the upper air outlet being arranged such that the air flow of the main heat dissipation air duct enters the annular heat dissipation air duct through the upper air inlet and then returns to the main heat dissipation air duct through the upper air outlet by the action of the two heat dissipation fans.

5. The micro-steaming and baking device according to claim 4, wherein the right air duct structure comprises a right air outlet formed on the right front side of the outer casing, a right heat dissipation air duct formed between the outer casing and the inner casing, and a right air inlet for communicating the right heat dissipation air duct and the main heat dissipation air duct, wherein the right air inlet is formed on the lower right middle side of the rear plate and is located between the two heat dissipation fans and the side air outlet.

6. The micro-steaming and baking device according to any one of claims 2 to 5, wherein the electric chamber comprises a control heat dissipation area and an electric component area which are distributed from side to side, a circuit board and the two heat dissipation fans are arranged in the control heat dissipation area, the side air inlet and the rear air inlet are located in the control heat dissipation area, and the side air outlet and the rear air outlet are located in the electric component area.

7. A micro steaming and baking device according to claim 6, wherein the electric parts area is arranged with a steam generation module, a magnetron, a frequency converter or a transformer and a high voltage capacitor, wherein the steam generation module and the frequency converter or the steam generation module and the high voltage capacitor are arranged at an inner upper side of the electric parts area; and a magnetron, or a magnetron and a transformer, disposed at an outer lower side of the electric part region.

8. The micro-steaming device of claim 1, further comprising a primary heater assembly, wherein the primary heater assembly comprises two primary heating tubes longitudinally disposed in a laterally spaced manner above the cooking chamber.

9. The micro-steaming and baking device as claimed in claim 1, further comprising a side hot air structure, the side hot air structure comprises a side hot air motor installed on the left side plate of the inner shell of the box body, a side hot air fan in driving connection with the side hot air motor, an air suction opening and an air supply opening arranged on the left side plate of the inner container of the box body, wherein the air suction opening and the side hot air fan are arranged in a manner of facing each other, and the air supply opening is arranged around the air suction opening.

10. The micro-steaming and baking apparatus as claimed in claim 9, wherein the side air heating structure further comprises side heating pipes provided corresponding to the air blowing ports and arranged around the side air heating fan.