Door body structure for cooking equipment and steaming oven

Abstract

The utility model relates to a door body structure used for cooking equipment and a steaming oven, an air inlet assembly is installed in a lower air inlet of a first interlayer of the door body structure, the air inlet assembly comprises an air inlet fan and an air guide channel used for guiding outlet air of the air inlet fan to an upper air outlet, an air inlet of the air inlet fan is communicated with the outside, and an air outlet of the air guide channel is communicated with an upper air outlet. The air guide channel comprises a first channel and a second channel which are independent from each other, the first channel and the second channel extend in the left-right direction of the first interlayer from bottom to top, air inlet ports, located at the lower ends, of the channels are communicated with an air outlet of the air inlet fan, and air outlet ports, located at the upper ends, of the channels face the upper air outlet. And the first channel and the second channel are staggered front and back in the left-right direction of the first interlayer. The door body is cooled in an air cooling mode, and compared with an existing water cooling mode, the structure is simple, assembling is convenient, and the hidden danger of water leakage is avoided.

Description

Technical Field

[0001] The utility model relates to the field of cooking equipment, in particular to a door structure and a steam oven for cooking equipment. Background Art

[0002] When the cooking equipment is working, the heat in the inner pot will radiate to the door body, causing the temperature of the outer surface of the door to rise, and there is a risk of burns when the user opens and closes the door. The door body of the cooking equipment currently on the market generally adopts a three-layer door glass structure, especially for cooking equipment with baking functions, such as ovens, steam ovens, etc. Although the three-layer door glass structure can block the heat transferred from the inner pot to the outer surface of the door to a certain extent, it will still cause the outer surface temperature of the door to be too high after long-term use.

[0003] To this end, the Chinese invention patent with patent number ZL202010622982.3 (authorized public number CN111839256A) discloses an oven, including an inner tank with an opening on the front side and a door body covering the opening of the inner tank, a heat dissipation channel with a heat dissipation fan is arranged above the inner tank, the door body includes an outer first door panel and a second door panel located behind the first door panel, an installation interlayer is formed between the first door panel and the second door panel, and a water tank is embedded in the installation interlayer, and a water cooling component for cooling water is arranged in the heat dissipation channel, and the cold water outlet of the water cooling component is fluidly connected with the water inlet of the water tank. The above patent adopts water cooling to dissipate heat from the door body, however, a water tank needs to be arranged in the door body, which increases the manufacturing difficulty and cost on the one hand, and on the other hand, the water tank in the door body needs to be connected to the water cooling component through a water channel, etc., and there is a hidden danger of water leakage after long-term use. Summary of the invention

[0004] The first technical problem to be solved by the utility model is to provide a door structure with heat dissipation function for cooking equipment in view of the prior art, wherein the door structure has good heat dissipation effect and does not have the hidden danger of water leakage.

[0005] The second technical problem to be solved by the utility model is to provide a steam oven with the above-mentioned door structure in view of the prior art.

[0006] The technical solution adopted by the utility model to solve the above-mentioned first technical problem is: a door body structure for a cooking device, comprising a door body, the door body comprising an outer door panel, an inner door panel and a middle door panel located therebetween, wherein a first interlayer is formed between the inner surface of the outer door panel and the front surface of the middle door panel, characterized in that the lower port of the first interlayer communicates with the outside and serves as the lower air inlet of the first interlayer, and the upper port communicates with the outside and serves as the upper air outlet of the first interlayer,

[0007] An air inlet assembly is installed in the above-mentioned lower air inlet, and the air inlet assembly includes an air inlet fan and an air guide channel for directing the air outlet of the air inlet fan to the upper air outlet, wherein the air inlet of the air inlet fan is communicated with the outside, and the above-mentioned air guide channel includes a first channel and a second channel that are independent of each other, and the first channel and the second channel extend from bottom to top along the left and right directions of the first interlayer, respectively, and the air inlet ports at the lower ends of each channel are respectively communicated with the air outlets of the above-mentioned air inlet fan, while the air outlet ports at the upper ends are respectively directed toward the above-mentioned upper air outlets, and the first channel and the second channel are staggered front and back along the left and right directions of the first interlayer.

[0008] Furthermore, the horizontal velocity of the outlet airflow of the first channel is greater than that of the outlet airflow of the second channel, and the vertical velocity of the outlet airflow of the first channel is greater than that of the outlet airflow of the second channel. In this way, the cold air can be quickly distributed in the first interlayer, and the local velocity difference of the airflow is used to promote mixed flow, which is conducive to better heat exchange between cold and hot air.

[0009] Furthermore, the air inlet ports of the first channel and the second channel are both arranged vertically, while the air outlet ports are both arranged horizontally.

[0010] Furthermore, the first channel further comprises a first guide surface for guiding the airflow from its own air inlet port to the air outlet port, and the second channel further comprises a second guide surface for guiding the airflow from its own air inlet port to the air outlet port, and each guide surface comprises a continuously arranged horizontal segment and an upwardly curved arc segment.

[0011] Among them, one end of each horizontal segment is connected to the air inlet port of the corresponding channel, and the other end is connected to one end of the corresponding arc segment, and the other end of each arc segment is connected to the air outlet port of the corresponding channel, and the length of the horizontal segment of the first guide surface is greater than the length of the horizontal segment of the second guide surface, and the curvature of the arc segment of the first guide surface is equal to the curvature of the arc segment of the second guide surface. Through the above design, the horizontal flow velocity and vertical flow velocity of the outlet airflow of the first channel are different from those of the second channel.

[0012] Further, the air guide channel is formed by an air guide cover arranged on the front door panel or the middle door panel, the air guide panel is arranged vertically, and a first convex strip and a second convex strip are respectively arranged on one side surface at intervals in the upper and lower directions of the length direction, the first convex strip, the second convex strip, the corresponding part of the air guide panel and the corresponding door panel form the first channel, wherein the inner surface of the second convex strip is the first guide surface;

[0013] A hollow platform is protruding along the other side surface of the wind guide plate, and one side and the top of the platform are open so that the inner cavity forms the second channel. In this way, the wind guide channel can be constructed in the first interlayer through a simple structure, and it is easy to disassemble and assemble.

[0014] Furthermore, the thickness of the air guide plate matches the front-to-back spacing of the first interlayer, which can ensure the stable installation of the air guide plate and thus the reliability of the air guide channel structure; on the other hand, it can distribute the cold air from bottom to top throughout the first interlayer, further improving the heat dissipation effect on the door body.

[0015] Furthermore, the air inlet of the air inlet fan is fluidly connected with the lower air inlet of the first interlayer, and the air is discharged horizontally from the air outlet after the air is taken in from bottom to top. Cold air has the characteristic of sinking, and the air intake from bottom to top can further reduce the temperature of the air sucked into the air inlet fan, thereby further improving the heat dissipation effect on the door body.

[0016] Furthermore, it also includes an air inlet channel for guiding air from bottom to top vertically to the air inlet of the air inlet fan through the lower air inlet. By designing the air inlet channel, the air inlet fan can better intake air from bottom to top, ensuring the air intake volume of the air inlet fan, thereby ensuring the heat dissipation effect on the door body.

[0017] Furthermore, an air inlet sleeve is provided on the air inlet side of the air inlet fan, one end of which is sleeved on the outer side of the air inlet fan where the air inlet is located along the length direction of the outer edge of the air inlet, while the other end is open and extends vertically, and the air inlet sleeve and the corresponding surface of the middle door plate or the outer door plate form the air inlet channel. In this way, the air inlet channel structure can be formed in the first interlayer through a simple structure.

[0018] Furthermore, the air inlet components are two and are respectively arranged at the left and right ends of the lower air inlet, and the air guide channels of the two are adjacent to each other, and the first channel of one air inlet component is opposite to the second channel of the other air inlet component, and the second channel is opposite to the first channel of the other air inlet component. The design of the double air inlet components further improves the heat dissipation effect of the door body, and the staggered design of the channels of the two air inlet components can make the airflow evenly distributed along the entire first interlayer, ensuring a good heat dissipation effect.

[0019] Furthermore, a second interlayer is formed between the inner surface of the inner door panel and the surface of the middle door panel, and the upper and lower ends of the second interlayer are respectively connected to the outside world, and an upper bracket is provided at the top of the door body along the left and right directions to cover the upper air outlet and the upper end of the second interlayer, and the upper bracket is provided with a first air outlet hole for the upper air outlet to communicate with the outside world and a second air outlet hole for the upper end of the second interlayer to communicate with the outside world, and the first air outlet holes are arranged at intervals on the left and right along the length direction of the upper bracket, and similarly, the second air outlet holes are arranged at intervals on the left and right along the length direction of the upper bracket. The second interlayer is designed to reduce the heat transferred from the inner door panel to the middle door panel, thereby helping to reduce the heat transferred to the outer surface of the outer door panel, and the upper bracket is provided to make the internal structure of the door body firm on the one hand, and to reduce the foreign matter from falling through the opening at the top of the door body on the other hand.

[0020] The technical solution adopted to further solve the above-mentioned second technical problem is: a steam oven, characterized in that it includes the door structure for cooking equipment as described above.

[0021] Compared with the prior art, the utility model has the advantages that: an air intake assembly is installed in the lower air intake, and when the air intake fan of the air intake assembly is in working state, the external cold air is introduced into the air guide channel, and the cold air flows from the lower air intake of the first interlayer from bottom to top under the guidance of the air guide channel and is discharged from the upper air outlet, thereby taking away the heat in the door body and playing a role in heat dissipation of the door body. Furthermore, the air guide channel includes a first channel and a second channel that are independent of each other, and the first channel and the second channel are staggered in front and back along the left and right direction of the first interlayer, so that the introduced cold air can be fully distributed to various parts of the first interlayer, so that it can fully exchange heat with the hot air in the first interlayer, thereby improving the heat dissipation effect on the door body.

[0022] It can be seen that the utility model adopts air cooling to dissipate heat from the door body. Compared with the existing water cooling method, it has a simple structure, is easy to assemble, and does not have the hidden danger of water leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of a steam oven in an embodiment of the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the door body in the embodiment of the utility model;

[0025] Figure 3 for Figure 2 A schematic diagram of the structure in another direction;

[0026] Figure 4 for Figure 2 A schematic diagram of the structure in another direction;

[0027] Figure 5 for Figure 3 Cross-sectional view along AA direction;

[0028] Figure 6 for Figure 3 Cross-sectional view along direction BB;

[0029] Figure 7 for Figure 3 Cross-sectional view along CC direction;

[0030] Figure 8 This is a schematic structural diagram of the air inlet fan in the embodiment of the utility model;

[0031] Fig. 9 This is a schematic diagram of the structure of the air guide plate in the embodiment of the utility model;

[0032] Fig.10 for Fig. 9 Schematic diagram of the structure in another direction. DETAILED DESCRIPTION

[0033] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0034] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Since the embodiments disclosed in the present utility model can be set in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features.

[0035] like Figure 1 As shown, a steam oven comprises a box body 1, an inner pot 2 accommodated in the box body 1, a door structure and a control panel 4, wherein the inner pot 2 has an opening at the front side, and the door structure is used to cover the opening of the inner pot 2. The control panel 4 is located above the door structure, and there is a gap between the two, and the exhaust port 5 of the exhaust channel is exposed through the gap.

[0036] Further, if Figures 2 to 10 As shown, the door body structure includes a door body 3, which includes an outer door panel 31, an inner door panel 33 and a middle door panel 32 located therebetween, wherein a first interlayer 3a is formed between the inner surface of the outer door panel 31 and the front surface of the middle door panel 32. The lower port of the first interlayer 3a is communicated with the outside world and is the lower air inlet 3a1 of the first interlayer 3a, while the upper port is communicated with the outside world and is the lower air outlet 3a2 of the first interlayer 3a. In this embodiment, the outer door panel 31, the middle door panel 32 and the inner door panel 33 are all door glasses.

[0037] Furthermore, an air inlet assembly 6 is installed in the lower air inlet 3a1, and the air inlet assembly 6 includes an air inlet fan 61 and an air guide channel for guiding the air out of the air inlet fan 61 to the lower air outlet 3a2. The air inlet 611 of the air inlet fan 61 is connected to the outside, and the air guide channel includes a first channel 63 and a second channel 64 that are independent of each other, and the first channel 63 and the second channel 64 extend from bottom to top along the left and right directions of the first interlayer 3a, respectively. The air inlet ports 631 and 641 at the lower end of each channel are respectively connected to the air outlet 612 of the air inlet fan 61, and the air outlet ports 632 and 642 at the upper end are respectively facing the lower air outlet 3a2, and the first channel 63 and the second channel 64 are staggered front and back along the left and right directions of the first interlayer 3a.

[0038] As can be seen from the above, the utility model installs an air inlet assembly 6 in the lower air inlet 3a1. When the air inlet fan 61 of the air inlet assembly 6 is in working state, the external cold air is introduced into the air guide channel. Under the guidance of the air guide channel, the cold air flows from the lower air inlet 3a1 of the first interlayer 3a from bottom to top and is discharged from the lower air outlet 3a2, thereby taking away the heat in the door body 3 and playing a role in heat dissipation of the door body 3. Furthermore, the air guide channel includes a first channel 63 and a second channel 64 that are independent of each other. The first channel 63 and the second channel 64 are staggered front and back along the left and right directions of the first interlayer 3a, so that the introduced cold air can be fully distributed to all parts of the first interlayer 3a, so that it can fully exchange heat with the hot air in the first interlayer 3a, thereby improving the heat dissipation effect of the door body 3. It can be seen that the utility model adopts air cooling to dissipate the heat of the door body 3. Compared with the existing water cooling method, it has a simple structure, is easy to assemble, and does not have the hidden danger of water leakage.

[0039] Furthermore, in this embodiment, the horizontal velocity of the outlet airflow of the first channel 63 is greater than the horizontal velocity of the outlet airflow of the second channel 64, and the vertical velocity of the outlet airflow of the first channel 63 is greater than the horizontal velocity of the outlet airflow of the second channel 64. In this way, the cold air can be distributed more quickly in the first interlayer 3a, and the local velocity difference of the airflow is used to promote mixed flow, which is conducive to better heat exchange between cold and hot air.

[0040] In order to achieve that the horizontal velocity and vertical velocity of the outlet airflow of the first channel 63 are different from those of the second channel 64, in this embodiment, the air inlet ports 631, 641 of the first channel 63 and the second channel 64 are both arranged vertically, while the air outlet ports 632, 642 are both arranged horizontally. In addition, the first channel 63 further includes a first guide surface 630 for guiding the airflow from its own air inlet port 631 to the air outlet port 632, and the second channel 64 further includes a second guide surface 640 for guiding the airflow from its own air inlet port 641 to the air outlet port 642, and each guide surface includes a continuously arranged horizontal section (not shown) and an upwardly curved arc section (not shown). Among them, one end of each horizontal segment is connected to the air inlet port of the corresponding channel, and the other end is connected to one end of the corresponding arc segment, and the other end of each arc segment is connected to the air outlet port of the corresponding channel, and the length of the horizontal segment of the first guide surface 630 is greater than the length of the horizontal segment of the second guide surface 640, and the curvature of the arc segment of the first guide surface 630 is equal to the curvature of the arc segment of the second guide surface 640.

[0041] Furthermore, the above-mentioned air guide channel is formed by the air guide plate 62 covering the front door panel or the middle door panel 32. The air guide plate 62 is arranged vertically, and a first convex strip 621 and a second convex strip 622 extending along the length direction of the air guide plate 62 are convexly arranged on one side surface at intervals, and the first convex strip 621, the second convex strip 622, the corresponding part of the air guide plate 62 and the corresponding door panels form the above-mentioned first channel 63, wherein the inner surface of the second convex strip 622 is the above-mentioned first guide surface 630. That is, the second convex strip 622 first extends horizontally along the airflow direction and then bends upward in a circular arc. Preferably, the second convex strip 622 also first extends horizontally along the airflow direction and then bends upward in a circular arc, such as Fig. 9 and Fig.10 shown.

[0042] A hollow platform 623 is protruding along the other side surface of the air guide plate 62, and one side and the top end of the platform 623 are open so that the inner cavity forms the second channel 64. In this way, the air guide channel can be constructed in the first interlayer 3a through a simple structure, and it is easy to disassemble and assemble. Preferably, the thickness of the air guide plate 62 matches the front-to-back spacing of the first interlayer 3a. On the one hand, it can ensure the stable installation of the air guide plate 62, thereby ensuring the reliability of the air guide channel structure; on the other hand, it can make the cold air distributed from bottom to top in the entire first interlayer 3a, further improving the heat dissipation effect on the door body 3.

[0043] Furthermore, the air inlet 611 of the air inlet fan 61 is fluidly connected to the lower air inlet 3a1 of the first interlayer 3a, and the air is discharged horizontally from the air outlet 612 after the air is taken in from bottom to top, as shown in FIG. Figure 4As shown, the cold air has the characteristic of sinking, and the air intake from bottom to top can further reduce the temperature of the air sucked into the air intake fan 61, thereby further improving the heat dissipation effect on the door body 3.

[0044] Furthermore, the invention also includes an air inlet passage 80 for guiding the air vertically from bottom to top through the lower air inlet 3a1 to the air inlet 611 of the air inlet fan 61, such as Figure 4 As shown. By designing the air inlet channel 80, the air inlet fan 61 can better intake air from bottom to top, ensuring the air intake volume of the air inlet fan 61, thereby ensuring the heat dissipation effect on the door body 3. In this embodiment, an air inlet sleeve 8 is provided on the side of the air inlet 611 of the air inlet fan 61, one end of the air inlet sleeve 8 is sleeved on the outer side of the air inlet fan 61 where the air inlet 611 is located along the length direction of the outer edge of the air inlet 611, and the other end is open and extends vertically (as shown in FIG. Figure 8 As shown), the air induction sleeve 8 and the corresponding surface of the middle door panel 32 or the outer door panel 31 form the above-mentioned air induction channel 80, as shown in FIG. Figure 5 In this way, the air induction channel 80 structure can be formed in the first interlayer 3a through a simple structure.

[0045] Preferably, if Figure 4 , Figure 6 as well as Figure 7 As shown, there are two air inlet components 6, which are respectively arranged at the left and right ends of the lower air inlet 3a1, and the air guide channels of the two are adjacent to each other, and the first channel 63 of one air inlet component 6 is opposite to the second channel 64 of the other air inlet component 6, and the second channel 64 is opposite to the first channel 63 of the other air inlet component 6. The design of the double air inlet components 6 further improves the heat dissipation effect on the door body 3, and the staggered design of the channels of the two air inlet components 6 can make the airflow evenly distributed along the entire first interlayer 3a, ensuring a good heat dissipation effect. In the present embodiment, the air inlet sleeve 8 of the air inlet fan 61 of the air inlet assembly 6 located on the left side and the inner surface of the outer door panel 31 form an air inlet channel 80, and the first convex strip 621, the second convex strip 622, the corresponding part of the air guide plate 62 and the middle door panel 32 form the first channel 63 of the air inlet assembly 6; at the same time, the air inlet sleeve 8 of the air inlet fan 61 of the air inlet assembly 6 located on the right side and the front surface of the middle door panel 32 form an air inlet channel 80, and the first convex strip 621, the second convex strip 622, the corresponding part of the air guide plate 62 and the outer door panel 31 form the first channel 63 of the air inlet assembly 6.

[0046] Further, if Figure 5As shown, a second interlayer 3b is formed between the inner surface of the inner door panel 33 and the surface of the middle door panel 32, and the upper and lower ends of the second interlayer 3b are respectively connected to the outside, and the top of the door body 3 is covered with an upper bracket 7 along the left and right directions to cover the lower air outlet 3a2 and the upper end of the second interlayer 3b. In addition, the upper bracket 7 is provided with a first air outlet 71 for the lower air outlet 3a2 to communicate with the outside and a second air outlet 72 for the upper end of the second interlayer 3b to communicate with the outside, and the first air outlet 71 is evenly arranged at intervals along the length direction of the upper bracket 7. Similarly, the second air outlet 72 is evenly arranged at intervals along the length direction of the upper bracket 7. The second interlayer 3b is designed to reduce the heat transferred from the inner door panel 33 to the middle door panel 32, thereby helping to reduce the heat transferred to the outer surface of the outer door panel 31, and the upper bracket 7 is provided. On the one hand, the internal structure of the door body 3 can be made firm, and on the other hand, foreign objects can be reduced from falling through the opening at the top of the door body 3.

[0047] The "fluid communication" referred to in the present invention refers to the spatial position relationship between two components or parts (hereinafter collectively referred to as the first part and the second part respectively), that is, the fluid (gas, liquid or a mixture of the two) can flow from the first part along the flow path or / and be transported to the second part. The first part and the second part can be directly connected to each other, or the first part and the second part can be indirectly connected through at least one third party. The third party can be a fluid channel such as a pipe, channel, duct, guide member, hole, groove, etc., or it can be a chamber allowing fluid to flow through, or a combination of the above.

Claims

1. A door structure for a cooking device, comprising a door body (3), wherein the door body (3) comprises an outer door panel (31), an inner door panel (33) and a middle door panel (32) located therebetween, wherein: A first interlayer (3a) is formed between the inner surface of the outer door panel (31) and the front surface of the middle door panel (32), characterized in that a lower port of the first interlayer (3a) communicates with the outside and is a lower air inlet (3a1) of the first interlayer (3a), and an upper port communicates with the outside and is a lower air outlet (3a2) of the first interlayer (3a), An air inlet assembly (6) is installed in the lower air inlet (3a1), the air inlet assembly (6) comprising an air inlet fan (61) and an air guide channel for guiding the air out of the air inlet fan (61) to the lower air outlet (3a2), wherein the air inlet (611) of the air inlet fan (61) is communicated with the outside, the air guide channel comprises a first channel (63) and a second channel (64) which are independent of each other, the first channel (63) and the second channel (64) respectively extending from bottom to top along the left and right directions of the first interlayer (3a), the air inlet ports (631, 641) at the lower ends of each channel are respectively communicated with the air outlet (612) of the air inlet fan (61), while the air outlet ports (632, 642) at the upper ends are respectively directed toward the lower air outlet (3a2), and the first channel (63) and the second channel (64) are arranged staggered front to back along the left and right directions of the first interlayer (3a).

2. The door structure for cooking equipment according to claim 1, characterized in that: The horizontal flow velocity of the outlet air flow of the first channel (63) is greater than the horizontal flow velocity of the outlet air flow of the second channel (64), while the vertical flow velocity of the outlet air flow of the first channel (63) is greater than the vertical flow velocity of the outlet air flow in the second channel (64).

3. The door structure for cooking equipment according to claim 2, characterized in that: The air inlet port (631) of the first channel (63) and the air inlet port (641) of the second channel (64) are both arranged vertically, while the air outlet ports (632, 642) are both arranged horizontally. Furthermore, the first channel (63) further comprises a first guide surface (630) for guiding the airflow from its own air inlet port (631) to the air outlet port (632), and the second channel (64) further comprises a second guide surface (640) for guiding the airflow from its own air inlet port (641) to the air outlet port (642), and each guide surface comprises a continuously arranged horizontal segment and an upwardly curved arc segment. One end of each horizontal segment is connected to the air inlet port of the corresponding channel, and the other end is connected to one end of the corresponding arc segment, and the other end of each arc segment is connected to the air outlet port of the corresponding channel, and the length of the horizontal segment of the first guide surface (630) is greater than the length of the horizontal segment of the second guide surface (640), and the curvature of the arc segment of the first guide surface (630) is equal to the curvature of the arc segment of the second guide surface (640).

4. The door structure for cooking equipment according to claim 3, characterized in that: The wind guide channel is formed by an air guide plate (62) covered on the front door plate or the middle door plate (32), the air guide plate (62) being arranged vertically, and a first convex strip (621) and a second convex strip (622) extending along the length direction of the air guide plate (62) are convexly arranged on one side surface at intervals in the upper and lower directions, respectively, the first convex strip (621), the second convex strip (622), the corresponding part of the air guide plate (62) and the corresponding door plate form the first channel (63), wherein the inner surface of the second convex strip (622) is the first guide surface (630); A hollow platform (623) is protrudingly provided on the other side surface of the air guide plate (62) along the surface, and one side and the top end of the platform (623) are open so that the inner cavity thereof forms the second channel (64).

5. The door structure for cooking equipment according to claim 4, characterized in that: The thickness of the air guide plate (62) matches the front-to-back spacing of the first interlayer (3a).

6. The door structure for cooking equipment according to any one of claims 1 to 5, characterized in that: The air inlet (611) of the air inlet fan (61) is fluidically connected to the lower air inlet (3a1) of the first interlayer (3a), and air is taken in from bottom to top and discharged horizontally from the air outlet (612).

7. The door structure for cooking equipment according to claim 6, characterized in that: It also includes an air induction channel (80) for guiding air vertically from bottom to top through the lower air inlet (3a1) to the air inlet (611) of the air inlet fan (61).

8. The door structure for cooking equipment according to claim 7, characterized in that: An air inlet sleeve (8) is provided on the air inlet (611) side of the air inlet fan (61), one end of the air inlet sleeve (8) is sleeved on the outer side surface of the air inlet fan (61) where the air inlet (611) is located along the length direction of the outer edge of the air inlet (611), while the other end is open and extends vertically. The air inlet sleeve (8) and the corresponding surface of the middle door panel (32) or the outer door panel (31) form the air inlet channel (80).

9. The door structure for cooking equipment according to any one of claims 1 to 5, characterized in that: The air inlet components (6) are two and are respectively arranged at the left and right ends of the lower air inlet (3a1), and the air guide channels of the two are arranged adjacent to each other on the left and right, and the first channel (63) of one of the air inlet components (6) is opposite to the second channel (64) of the other air inlet component (6) on the left and right, and the second channel (64) is opposite to the first channel (63) of the other air inlet component (6) on the left and right.

10. The door structure for cooking equipment according to any one of claims 1 to 5, characterized in that: A second interlayer (3b) is formed between the inner surface of the inner door panel (33) and the surface of the middle door panel (32), and the upper and lower ends of the second interlayer (3b) are respectively connected to the outside world, and an upper bracket (7) is provided at the top of the door body (3) along the left and right directions to cover the lower air outlet (3a2) and the upper end of the second interlayer (3b), and a first air outlet hole (71) for connecting the lower air outlet (3a2) to the outside world and a second air outlet hole (72) for connecting the upper end of the second interlayer (3b) to the outside world are respectively provided on the upper bracket (7), and the first air outlet holes (71) are evenly arranged at intervals on the left and right sides along the length direction of the upper bracket (7), and similarly, the second air outlet holes (72) are evenly arranged at intervals on the left and right sides along the length direction of the upper bracket (7).

11. A steam oven, characterized in that: It comprises a door structure for cooking equipment as described in any one of claims 1 to 10.

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