CN216984588U - Door body structure of baking cooking device and baking cooking device - Google Patents

Abstract

The utility model relates to a door body structure of a baking cooking device and the baking cooking device, comprising a door body, wherein the door body comprises an outer door plate and an inner door plate, a ventilation interlayer is formed between the outer door plate and the inner door plate, the lower end of the ventilation interlayer is an air inlet port, the upper end of the ventilation interlayer is an air outlet port, a heat dissipation channel extending up and down is arranged in the ventilation interlayer, the corresponding part of the outer door plate forms one side wall of the heat dissipation channel, the air inlet of the heat dissipation channel is in fluid communication with the air inlet port of the ventilation interlayer, the air outlet is in fluid communication with the air outlet port of the ventilation interlayer, a heat dissipation fan is arranged on the air inlet of the heat dissipation channel, and the size of the cross section of the heat dissipation channel is gradually reduced from bottom to top.

Description

Door body structure of baking cooking device and baking cooking device

Technical Field

The utility model relates to the field of cooking devices, in particular to a door body structure of a baking cooking device and the baking cooking device.

Background

Baking cooking devices such as oven, roast all-in-one evaporate and close the door body on the front side opening of this inner bag including inner bag and lid generally, utilize heating element heating to place the food in the inner bag among the culinary art process to the realization is to the culinary art of food. When heating food, the heat in the inner bag also can radiate to the door body to lead to the door body temperature to rise, there is the risk of scalding the user.

At present, in order to avoid the surface temperature of the door body from being too high, the door body of the existing baking cooking device is generally of a three-layer door glass structure, for example, a chinese utility model patent with a patent number zl202022807268.x (publication number CN214104211U) is "an anti-scald door body structure and household electrical appliance", a chinese utility model patent with a patent number zl201920529961.x (publication number CN209951095U) is "an oven door glass fixing structure", and the like. However, the high temperature of the inner container during the operation of the oven can still be transferred to the outer door glass of the oven door body, so that the oven door body still has the potential safety hazard of scalding users during the operation of the oven.

Disclosure of Invention

The first technical problem to be solved by the present invention is to provide a door body structure of a grilling cooking apparatus capable of dissipating heat from the outer surface of the door body.

The second technical problem to be solved by the present invention is to provide a door structure of a grilling cooking apparatus, which can dissipate heat from the outer surface of the door and cool down, and the door structure can avoid interference with the exhaust of the grilling cooking apparatus.

The third technical problem to be solved by the present invention is to provide a door structure of a baking cooking device capable of dissipating heat and cooling the outer surface of the door, and the door structure can reduce the upper and lower temperature gradients of the inner cavity of the inner container near the door.

The fourth technical problem to be solved by the present invention is to provide a broiling cooking apparatus having the door structure in view of the prior art.

The technical scheme adopted by the utility model for solving at least one technical problem is as follows: a door body structure of a baking cooking device comprises a door body, wherein the door body comprises an outer door plate and an inner door plate, and is characterized in that a ventilation interlayer is formed between the outer door plate and the inner door plate, the lower end of the ventilation interlayer is an air inlet port, the upper end of the ventilation interlayer is an air outlet port, a heat dissipation channel extending up and down is arranged in the ventilation interlayer, the corresponding position of the outer door plate forms one side wall of the heat dissipation channel, the air inlet of the heat dissipation channel is in fluid communication with the air inlet port of the ventilation interlayer, the air outlet is in fluid communication with the air outlet port of the ventilation interlayer, a heat dissipation fan is arranged on the air inlet of the heat dissipation channel, and the size of the cross section of the heat dissipation channel is gradually reduced from bottom to top.

Furthermore, the upper end of the ventilation interlayer is also provided with an air outlet channel which extends up and down, the air outlet channel is positioned above the heat dissipation channel, the corresponding position of the upper end of the outer door plate forms one side wall of the air outlet channel, the air inlet of the air outlet channel is communicated with the air outlet of the heat dissipation channel in a fluid manner, the air outlet of the air outlet channel is communicated with the air outlet port of the ventilation interlayer in a fluid manner, and the size of the cross section of the air outlet channel increases from bottom to top. As described above, although the temperature of the upper portion of the outer door panel is relatively high, and therefore a relatively fast airflow velocity is required to take away heat, if the flow velocity of the air outlet end of the ventilation interlayer is too fast, the air outlet of the exhaust channel of the cooking device will be disturbed, and the exhaust of the cooking device will be affected, so that the air flow in the heat dissipation channel is stably discharged from the air outlet end of the ventilation interlayer through the air outlet channel by setting the air outlet channel.

Furthermore, a buffer cavity is further arranged in the ventilation interlayer, the corresponding position of the inner door panel forms one side wall of the buffer cavity, and the buffer cavity is communicated with the heat dissipation channel through a flow guide port. The temperature difference of two sides of the inner door plate is reduced by arranging the buffer cavity, and the temperature gradient of the upper area and the lower area of the inner cavity of the inner container, which is adjacent to the door body, can be reduced by the matching action of the heat dissipation channel and the air outlet channel, so that the uniformity of the upper surface and the lower surface of the food baking is improved.

Furthermore, the diversion ports are arranged up and down along the length direction of the heat dissipation channel and are arranged at intervals along the left and right direction, and the arrangement density of the diversion ports is increased progressively from bottom to top. The air flow speed in the heat dissipation channel is increased from bottom to top, and meanwhile, the heat quantity entering the heat dissipation channel from the buffer cavity is increased from bottom to top, so that the heat exchange speed of hot air flow in the buffer cavity and the relatively cold air flow of the heat dissipation channel is increased, the heat dissipation efficiency of the door body is improved on one hand, and the uniformity of the upper surface and the lower surface of food baking can be improved on the other hand.

Furthermore, the buffer cavity and the heat dissipation channel are arranged in parallel in the front and at the back, the buffer cavity and the heat dissipation channel share a vertical wall which is vertically arranged, each flow guide opening is arranged on the vertical wall, and the vertical wall inclines forwards from bottom to top. Thereby enabling the buffer cavity and the heat dissipation channel to be better communicated through the flow guide opening.

The air guide cover and the outer door plate respectively enclose the heat dissipation channel and the air outlet channel, and the air guide cover and the inner door plate enclose the buffer cavity. Therefore, the internal structure of the door body is simple, and the heat dissipation channel, the air outlet channel and the buffer cavity can be formed by arranging the air guide cover in the ventilation interlayer respectively.

Furthermore, the wind scooper comprises a vertically arranged bending plate and a frame, the frame comprises vertical plates at the left end and the right end and a bottom plate connected between the lower ends of the vertical plates, the bending plate is vertically clamped in the frame along the middle part of the frame in the front-back direction, the bending plate comprises a first plate body at the upper end and a second plate body positioned below the first plate body, wherein the first plate body inclines backwards from bottom to top, the second plate body inclines forwards from bottom to top, and the second plate body forms the vertical wall,

the front surface of the bending plate, the front end of the frame and the inner surface of the outer door plate respectively enclose the air outlet channel and the heat dissipation channel, the rear surface of the bending plate, the rear end of the frame and the inner surface of the inner door plate enclose the buffer cavity, and the front end of the bottom plate of the frame is provided with a notch to form an air inlet of the heat dissipation channel. The heat dissipation channel, the air outlet channel and the buffer cavity can be formed better through the design, the size of the cross section of the heat dissipation channel is gradually reduced from bottom to top, and the size of the cross section of the air outlet channel is gradually increased from bottom to top.

Furthermore, the middle part of the bottom plate of the frame is bent downwards and is of a bilateral symmetry structure, and the two ends of the bottom plate are respectively inclined downwards from top to bottom. Therefore, the external cold air entering from the air inlet of the heat dissipation channel can flow from bottom to top quickly under the guiding of the upper surface of the bottom plate and the driving of the air outlet of the heat dissipation fan.

The technical solution adopted to further solve the second technical problem is as follows: the grilling cooking apparatus is characterized by comprising the door body structure of the grilling cooking apparatus.

Compared with the prior art, the utility model has the advantages that: the left and right heat dissipation channels are arranged in the ventilation interlayer of the door body, and when a heat dissipation fan in the heat dissipation channels works, external cold air can enter the heat dissipation channels through the air inlet ports of the ventilation interlayer and the air inlets of the heat dissipation channels, so that heat on the outer door plate is taken away, and the phenomenon that a user is scalded due to overhigh temperature of the outer surface of the outer door plate is avoided. In addition, when the baking cooking device works, the gas in the inner container is discharged from the upper part of the door body, so the temperature assembly at the upper part of the door body is higher than the lower part of the door body, and correspondingly, the temperature assembly at the upper part of the outer door plate is higher than the lower part of the outer door plate.

Drawings

FIG. 1 is a schematic diagram of a grilling cooking apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a door body according to an embodiment of the utility model;

FIG. 3 is a cross-sectional view of a door body in an embodiment of the present invention;

FIG. 4 is a partial exploded view of the door body according to an embodiment of the present invention;

FIG. 5 is a schematic structural view of an air guiding cover according to an embodiment of the present invention;

fig. 6 is a schematic structural view in another direction of fig. 5.

Detailed Description

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

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and to simplify the description, but are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and that the directional terms are used for purposes of illustration and are not to be construed as limiting, for example, because the disclosed embodiments of the present invention may be oriented in different directions, "lower" is not necessarily limited to a direction opposite to or coincident 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 6, a cooking device (for example, an oven, a steaming and baking integrated machine, etc.) includes a box 1, an inner container (not shown) provided in the box 1, and a door structure, wherein the front sides of the box 1 and the inner container are opened, and the door structure is sequentially covered on the openings of the box 1 and the inner container. Further, the door body structure includes a door body 2, the door body 2 includes an outer door panel 21 and an inner door panel 22, and both the outer door panel 21 and the inner door panel 22 are made of door glass in this embodiment.

Further, a ventilation interlayer 20 is formed between the outer door panel 21 and the inner door panel 22, the lower end of the ventilation interlayer 20 is an air inlet port 201, the upper end of the ventilation interlayer 20 is an air outlet port 202, a heat dissipation channel 3 extending up and down is arranged in the ventilation interlayer 20, a corresponding position of the outer door panel 21 forms a side wall of one side of the heat dissipation channel 3, an air inlet of the heat dissipation channel 3 is in fluid communication with the air inlet port 201 of the ventilation interlayer 20, an air outlet is in fluid communication with the air outlet port 202 of the ventilation interlayer 20, a heat dissipation fan 31 is installed on the air inlet of the heat dissipation channel 3, and the size of the cross section of the heat dissipation channel 3 is gradually reduced from top to bottom. In this embodiment, the door seal 8 is disposed in the air outlet port 202 of the ventilation interlayer 20, an air outlet 81 is disposed in the door seal 8 along the length direction of the door seal, and the air flow in the ventilation interlayer 20 is discharged outside through the air outlet 81.

In the present invention, when the grilling cooking apparatus works, the heat dissipation fan 31 in the heat dissipation channel 3 rotates, and external cold air can enter the heat dissipation channel 3 through the air inlet port 201 of the ventilation interlayer 20 and the air inlet of the heat dissipation channel 3, so as to take away heat on the outer door panel 21 and prevent the user from being scalded by the overhigh temperature of the outer surface of the outer door panel 21. In addition, when the baking cooking device works, the gas in the inner container is discharged from the upper part of the door body 2, so the temperature of the upper part of the door body 2 is higher than that of the lower part of the door body 2, and correspondingly, the temperature of the upper part of the outer door plate 21 is higher than that of the lower part, therefore, in the baking cooking device, the size of the cross section of the heat dissipation channel 3 is gradually reduced from top to bottom, so the speed of the gas in the heat dissipation channel 3 is gradually increased from bottom to top, the heat of the upper part of the outer door plate 21 can be taken away more quickly, and the heat dissipation effect on the outer surface of the door body 2 is improved.

Further, an air outlet channel 4 extending vertically is further disposed at the upper end of the ventilation interlayer 20, the air outlet channel 4 is located above the heat dissipation channel 3, a corresponding position of the upper end of the outer door panel 21 forms a side wall of the air outlet channel 4, an air inlet of the air outlet channel 4 is in fluid communication with an air outlet of the heat dissipation channel 3 (in this embodiment, the air inlet and the air outlet are overlapped), an air outlet of the air outlet channel 4 is in fluid communication with the air outlet port 202 of the ventilation interlayer 20, and the size of the cross section of the air outlet channel 4 increases from bottom to top. As described above, although a relatively high temperature is required at the upper portion of the outer door panel 21, and therefore a relatively high airflow velocity is required to take away heat, if the flow velocity of the air outlet port 202 of the ventilation interlayer 20 is too high, the air outlet of the exhaust channel of the grill cooking device is disturbed (the exhaust channel horizontally exhausts outwards, and the air outlet of the ventilation interlayer 20 flows from bottom to top), and further the exhaust of the grill cooking device is affected, so that the airflow in the heat dissipation channel 3 is smoothly discharged from the air outlet port 202 of the ventilation interlayer 20 through the air outlet channel 4 by the arrangement of the air outlet channel 4.

Still further, a buffer cavity 5 is further disposed in the ventilation interlayer 20, a corresponding portion of the inner door panel 22 forms a side wall of the buffer cavity 5, and the buffer cavity 5 is communicated with the heat dissipation channel 3 through a diversion opening 7. The temperature difference of the two sides of the inner door panel 22 is reduced by arranging the buffer cavity 5, and the temperature gradient of the upper area and the lower area of the inner cavity of the inner container, which are adjacent to the door body 2, can be reduced by the cooperation of the heat dissipation channel 3 and the air outlet channel 4, so that the uniformity of the upper surface and the lower surface of the food baking is improved.

In this embodiment, the diversion ports 7 are vertically arranged along the length direction of the heat dissipation channel 3 and are uniformly arranged at intervals along the left-right direction, and the arrangement density of the diversion ports 7 increases progressively from bottom to top. Like this the air velocity in heat dissipation channel 3 increases progressively from bottom to top, and the heat that buffer chamber 5 got into heat dissipation channel 3 increases from bottom to top simultaneously for the heat exchange speed of the hot gas flow in buffer chamber 5 and heat dissipation channel 3's colder air current promotes the radiating efficiency to the door body 2 on the one hand, and on the other hand can promote the homogeneity of food toasting upper and lower surface better. Preferably, the buffer cavity 5 and the heat dissipation channel 3 are arranged in parallel in the front and back, the buffer cavity 5 and the heat dissipation channel 3 share a vertical wall which is vertically arranged, each flow guide opening 7 is formed in the vertical wall, and the vertical wall is inclined forward from bottom to top, so that the buffer cavity 5 and the heat dissipation channel 3 can be better communicated through the flow guide opening 7.

In this embodiment, in order to better form the heat dissipation channel 3, the air outlet channel 4 and the buffer cavity 5, an air guiding cover 6 is vertically disposed in the ventilation interlayer 20, the air guiding cover 6 and the outer door panel 21 respectively enclose the heat dissipation channel 3 and the air outlet channel 4, and the inner door panel 22 encloses the buffer cavity 5. Therefore, the internal structure of the door body 2 can be simple, and the heat dissipation channel 3, the air outlet channel 4 and the buffer cavity 5 can be respectively formed by arranging the air guide cover 6 in the ventilation interlayer 20. Specifically, the wind scooper 6 includes a vertically arranged bent plate 61 and a frame 62, and the frame 62 includes risers 621 at left and right ends and a bottom plate 622 connected between lower ends of the risers 621. The bending plate 61 is vertically sandwiched in the frame 62 along the middle of the frame 62 in the front-rear direction, and the bending plate 61 includes a first plate 611 at the upper end and a second plate 612 below the first plate 611. The first plate 611 is inclined from bottom to top and backward, the second plate 612 is inclined from bottom to top and forward, and the second plate 612 forms the vertical wall. The front surface of the bending plate 61, the front end of the frame 62 and the inner surface of the outer door panel 21 respectively enclose the air outlet channel 4 and the heat dissipation channel 3, the rear surface of the bending plate 61, the rear end of the frame 62 and the inner surface of the inner door panel 22 enclose the buffer cavity 5, and the front end of the bottom plate 622 of the frame 62 is provided with a notch 6221 to form an air inlet of the heat dissipation channel 3. The diversion ports 7 are disposed in the second plate body 612, the diversion ports 7 are disposed at intervals along the left-right direction of the second plate body 612, the disposition density of the diversion ports 7 increases from bottom to top, and in addition, the diversion ports 7 are circular holes.

Above-mentioned heat dissipation channel 3, air-out passageway 4 and cushion chamber 5 can form better through above design to make heat dissipation channel 3's cross section size decrease progressively from bottom to top, and air-out passageway 4's cross section size increases progressively from bottom to top. Preferably, the middle of the bottom plate 622 of the frame 62 is bent downward and has a left-right symmetrical structure, and two ends of the bottom plate 622 are respectively inclined downward from top to bottom. Thus, the external cold air entering from the air inlet of the heat dissipation channel 3 can flow from bottom to top faster under the guiding of the upper surface of the bottom plate 622 and the driving of the outlet air of the heat dissipation fan 31.

The term "fluid communication" as used herein refers to a spatial relationship between two components or portions (hereinafter collectively referred to as a first portion and a second portion, respectively), i.e., a fluid (gas, liquid or a mixture of both) can flow from the first portion along a flow path or/and be transported to the second portion, and may be a direct communication between the first portion and the second portion, or an indirect communication between the first portion and the second portion via at least one third element, such as a fluid channel, e.g., a pipe, a channel, a conduit, a flow guide, a hole, a groove, or a chamber that allows a fluid to flow through, or a combination thereof.

Claims (9)

1. A door body structure of a baking cooking device comprises a door body (2), the door body (2) comprises an outer door panel (21) and an inner door panel (22), it is characterized in that a ventilation interlayer (20) is formed between the outer door panel (21) and the inner door panel (22), the lower end of the ventilation interlayer (20) is an air inlet port (201) and the upper end is an air outlet port (202), the ventilation interlayer (20) is internally provided with a heat dissipation channel (3) which extends up and down, and the corresponding position of the outer door panel (21) forms one side wall of the heat dissipation channel (3), the air inlet of the heat dissipation channel (3) is in fluid communication with the air inlet port (201) of the ventilation interlayer (20), the air outlet is communicated with the air outlet port (202) of the ventilation interlayer (20) in a fluid way, and a heat radiation fan (31) is arranged on an air inlet of the heat radiation channel (3), and the size of the cross section of the heat radiation channel (3) decreases progressively from bottom to top.

2. The door structure of a grill cooking device according to claim 1, wherein the upper end of the ventilation interlayer (20) is further provided with an air outlet channel (4) extending vertically, the air outlet channel (4) is located above the heat dissipation channel (3), a corresponding position of the upper end of the outer door panel (21) forms a side wall of the air outlet channel (4), an air inlet of the air outlet channel (4) is in fluid communication with an air outlet of the heat dissipation channel (3), an air outlet of the air outlet channel (4) is in fluid communication with an air outlet port (202) of the ventilation interlayer (20), and the cross-sectional size of the air outlet channel (4) increases from bottom to top.

3. A door structure of a grill cooking device according to claim 2, wherein the ventilation interlayer (20) further includes a buffer chamber (5), a corresponding portion of the inner door panel (22) forms a side wall of the buffer chamber (5), and the buffer chamber (5) is communicated with the heat dissipating channel (3) through a diversion opening (7).

4. The door structure of the grill cooking device according to claim 3, wherein the diversion ports (7) are arranged up and down along the length direction of the heat dissipation channel (3) and are arranged at intervals along the left and right direction, and the arrangement density of the diversion ports (7) increases from bottom to top.

5. A door structure of a grill cooking device according to claim 4, wherein the buffer chamber (5) and the heat dissipating channel (3) are arranged side by side in front and at the back, and the buffer chamber (5) and the heat dissipating channel (3) share a vertical wall arranged vertically, each of the flow guiding openings (7) is provided on the vertical wall, and the vertical wall is inclined forward from bottom to top.

6. The door structure of the grilling cooking device according to claim 5, further comprising an air guiding cover (6) vertically and separately disposed in the ventilation interlayer (20), wherein the air guiding cover (6) and the outer door panel (21) respectively enclose the heat dissipating channel (3) and the air outlet channel (4), and enclose the buffer cavity (5) with the inner door panel (22).

7. The door body structure of the grill cooking device according to claim 6, wherein the air guiding cover (6) comprises a vertically disposed bending plate (61) and a frame (62), the frame (62) comprises vertical plates (621) at left and right ends and a bottom plate (622) connected between lower ends of the vertical plates (621), the bending plate (61) is vertically clamped in the frame (62) along a middle portion of the frame (62) in a front-rear direction, the bending plate (61) comprises a first plate body (611) at an upper end and a second plate body (612) below the first plate body (611), wherein the first plate body (611) is inclined from bottom to top and the second plate body (612) is inclined from bottom to top and the second plate body (611) forms the vertical wall,

the front surface of the bending plate (61), the front end of the frame (62) and the inner surface of the outer door panel (21) respectively enclose the air outlet channel (4) and the heat dissipation channel (3), the rear surface of the bending plate (61), the rear end of the frame (62) and the inner surface of the inner door panel (22) enclose the buffer cavity (5), and the front end of the bottom plate (622) of the frame (62) is provided with a notch (6221) to form an air inlet of the heat dissipation channel (3).

8. The door structure of an grill cooking device according to claim 7, wherein the middle of the bottom plate (622) of the frame (62) is bent downward and has a left-right symmetrical structure, and both ends of the bottom plate (622) are respectively inclined downward from top to bottom.

9. A grill cooking apparatus having the door structure of the grill cooking apparatus according to any one of claims 1 to 8.

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