A machine door assembly and cooking apparatus

Abstract

The application belongs to the technical field of electrical appliances, and particularly discloses a machine door assembly and a cooking device. The machine door assembly comprises a machine door and a door handle, the door handle is installed at the top end of the machine door, and the door handle can be switched between an extended state of extending forward relative to the machine door and a retracted state of retracting relative to the extended state; the machine door is internally provided with a door steam passage and a door condensing assembly, when the door handle is in the retracted state, the door steam passage is communicated with a steam discharge port of an inner container, and the door condensing assembly is used for condensing steam entering the door steam passage. The cooking device comprises a machine body provided with an inner container, the inner container is provided with a steam discharge port, and further comprises the machine door assembly as above, the machine door is installed on the front side of the machine body, and when the door handle is in the retracted state, the steam discharge port is communicated with the door steam passage. The machine door assembly and the cooking device provided by the application can realize the discharge of steam with a movable door handle, reduce the steam discharge amount and the steam discharge temperature, and improve the use flexibility and use experience of the cooking device.

Description

Technical Field

[0001] This invention relates to the field of electrical technology, and more particularly to a door assembly and cooking equipment. Background Technology

[0002] With the development of technology, steam cooking appliances such as steam ovens and electric steamers that can achieve steaming and baking are becoming more and more widely used, greatly enriching users' choices of cooking methods and improving their quality of home life.

[0003] To meet the opening and closing requirements of cooking equipment, handles are usually installed on the doors of cooking equipment. Existing technology provides a door with a telescopic handle, which is slidably mounted on the top of the door and located below the control device. The handle can extend forward to the front of the door for user use, and when not in use, it can slide backward to be flush with the front of the door to avoid bumps.

[0004] When a steam cooking appliance is in use, a large amount of steam is generated in the inner pot. The steam in the inner pot needs to be released to balance the air pressure in the inner pot. However, the existing steam release structure is only suitable for steam cooking appliances with fixed handles and is difficult to apply to steam cooking appliances with telescopic handles. This limits the use of steam cooking appliances with telescopic handles and makes it difficult to meet the steam release needs during the cooking process. Summary of the Invention

[0005] The purpose of this invention is to provide a door assembly and cooking equipment that can realize steam emission of cooking equipment with movable handle, satisfying the use requirements of movable handle while satisfying the steam emission requirements of cooking equipment, thereby improving the user experience of steam cooking equipment.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A door assembly includes a door and a door handle, the door handle being mounted on the top of the door and capable of switching between an extended state in which the door extends forward relative to the door and a retracted state in which the door retracts in relative to the extended state.

[0008] The machine door is equipped with a door steam passage and a door condensation assembly. When the door handle is in the retracted state, the door steam passage is connected to the steam discharge port of the inner liner, and the door condensation assembly is used to condense the steam entering the door steam passage.

[0009] As an optional technical solution for the door assembly, the door has an observation window, and the door condensation assembly is located outside the observation window.

[0010] As an optional technical solution for the door assembly, one door condensation assembly is provided on each of the left and right sides of the observation window.

[0011] As an optional technical solution for the machine door assembly, the machine door includes an outer door and an inner door spaced apart from each other, with an inner space formed between the outer door and the inner door, and the door condensation assembly is disposed within the inner space.

[0012] As an optional technical solution for the door assembly, the door condensation assembly includes a condenser tube, the condenser tube being thermally conductive, and the inner cavity of the condenser tube forming the door vapor channel.

[0013] As an optional technical solution for the door assembly, the condenser tube extends along the height direction of the door and is continuous at both ends.

[0014] As an optional technical solution for the door assembly, the door condensation assembly further includes a radiator, which is installed on the outside of the condenser tube.

[0015] As an optional technical solution for the door assembly, the radiator includes multiple heat dissipation fins arranged side by side and spaced apart, and the heat dissipation fins are connected to the condenser tube.

[0016] As an optional technical solution for the door assembly, the radiator and the condenser are arranged side by side in the front-to-back direction.

[0017] As an optional technical solution for the door assembly, the condenser tube has a flat tubular structure, and the width of the condenser tube in the left-right direction is greater than the width of the condenser tube in the front-back direction.

[0018] And / or, the width of the condenser tube in the front-back direction is smaller than the width of the radiator in the front-back direction.

[0019] As an optional technical solution for the machine door assembly, the machine door includes an outer door and an inner door spaced apart behind the outer door, the door condenser assembly is disposed between the outer door and the inner door, and the radiator is located between the condenser pipe and the inner door.

[0020] As an optional technical solution for the door assembly, the door includes an outer door and an inner door spaced apart behind the outer door. An air duct frame is provided between the inner door and the outer door. The air duct frame, the inner door, and the outer door together form a cold air inlet channel. The cold air inlet channel is used to introduce cooling airflow. The door condensation assembly is installed in the cold air inlet channel.

[0021] As an optional technical solution for the door assembly, the condenser pipe is detachably connected to the air duct frame;

[0022] Alternatively, the condenser tube and the air duct frame may be integrally formed.

[0023] As an optional technical solution for the door assembly, the top of the air duct frame is provided with an air inlet group, which is configured one-to-one with the door condensation assembly. The air inlet group includes several door steam inlets. When the door handle is in the retracted state, steam is introduced into the door steam channel through the door steam inlets.

[0024] As an optional technical solution for the door assembly, the air duct frame includes an inner frame and an outer frame that is spaced apart and sleeved on the outside of the inner frame. The outer frame, the inner frame, the outer door, and the inner door surround and form a steam heat dissipation channel. The cold air inlet channel includes the steam heat dissipation channel. The door condensation assembly is located in the steam heat dissipation channel. The door has a transparent observation window, and the inner space of the inner frame faces the observation window.

[0025] As an optional technical solution for the machine door assembly, the lower end of the steam heat dissipation channel is open, and the lower end of the door steam channel is also open.

[0026] As an optional technical solution for the door assembly, the air duct frame further includes a connecting plate portion, which is connected between the inner frame portion and the outer frame portion. The connecting plate portion is attached to the rear side of the outer door or the front side of the inner door, and the door condensation assembly is installed on the connecting plate portion.

[0027] As an optional technical solution for the door assembly, the inner side of the inner frame, the inner door, and the outer door together form an inner air duct, and the cold air inlet channel includes the inner air duct, which is used to introduce cooling airflow to cool the door.

[0028] As an optional technical solution for the door assembly, a door communication channel is formed between the top of the inner frame and the top of the outer frame. An air duct communication port is opened at the top of the inner frame. The steam heat dissipation channel is connected to the door communication channel, and the inner air duct is connected to the door communication channel through the air duct communication port.

[0029] As an optional technical solution for the door assembly, a partition plate is installed on the inner side of the inner frame. The area of ​​the partition plate opposite the observation window is transparent. The partition plate is spaced apart from both the outer door and the inner door. The inner air duct is divided into a front air duct and a rear air duct by the partition plate. The air duct connection port is connected to the front air duct and / or the rear air duct.

[0030] As an optional technical solution for the door assembly, a rear air vent is formed between the upper end of the inner door and the top of the air duct frame, and the cold air inlet channel is connected to the rear air vent.

[0031] As an optional technical solution for the door assembly, a handle bracket is installed at the top of the air duct frame, the door handle is movably installed on the handle bracket, the handle bracket covers the air vent behind the door, and the handle bracket is provided with a number of side ventilation holes, which are connected to the air vent behind the door.

[0032] As an optional technical solution for the door assembly, at least some of the side ventilation holes are positioned directly opposite the door condensation assembly.

[0033] As an optional technical solution for the door assembly, the handle bracket includes a top plate and a side plate connected to the rear of the top plate. The top plate has a steam vent that communicates with the door steam passage, and the side plate covers the rear air vent of the door and has a side ventilation hole.

[0034] A cooking appliance includes a body having an inner pot with a steam vent, characterized in that it includes a door assembly as described above, the door being mounted on the front side of the body, and the steam vent communicating with the door steam passage when the door handle is in the retracted state.

[0035] As an optional technical solution for cooking equipment, a steam exhaust device is provided between the inner pot and the casing of the main body. The steam exhaust device includes an exhaust hood and an exhaust fan. The exhaust hood has a steam exhaust channel, which is connected to the steam exhaust port.

[0036] When the door handle is in the retracted state, the exhaust fan promotes the flow of steam in the inner liner to the steam exhaust channel and the door steam channel in sequence.

[0037] As an optional technical solution for cooking equipment, the steam exhaust device is provided with an organic cooling air duct, the door is provided with a cold air inlet channel, the air inlet of the exhaust fan is connected to the organic cooling air duct, and the air outlet of the exhaust fan is connected to the steam exhaust channel. The exhaust fan causes the external cooling airflow to flow sequentially through the cold air inlet channel, the organic cooling air duct, and the exhaust fan to dissipate heat from the door condensation assembly.

[0038] The beneficial effects of this invention are as follows:

[0039] The door assembly provided in this embodiment features a door handle with both retracted and extended states. When the user does not need to use the door handle for opening and closing, the handle can be switched to the retracted state to prevent it from protruding from the front of the door and causing bumps, thus improving the safety of the cooking equipment. When the user needs to use the door handle, it can be extended to meet their needs. Furthermore, by incorporating a door steam channel, when the door handle is in the retracted state, steam from the inner pot enters the door steam channel through the steam vent, thus venting steam from the inner pot and solving the problem of difficult steam venting caused by the movable door handle, ensuring... Steam in the inner liner can be smoothly discharged, ensuring the normal operation of the cooking equipment. By placing the steam discharge channel inside the door, the thickness of the door itself can be utilized to design the steam channel, avoiding the problems of complex structure and increased size that would result from placing the steam discharge channel inside the main body. This facilitates the miniaturization of cooking equipment using this door assembly. Furthermore, by incorporating a door condensation component inside the door to condense the steam in the door steam channel, the steam condensation effect during the steam discharge process can be improved, effectively reducing the steam temperature and volume discharged from the door steam channel, thus enhancing the user experience of both the door assembly and the cooking equipment.

[0040] The cooking device provided by the present invention, by adopting the above-mentioned door assembly, can achieve better steam discharge while setting the telescopic door handle on the cooking device, and can effectively reduce the amount of steam discharged from the cooking device, lower the temperature of the discharged gas, and improve the user experience of the cooking device. Attached Figure Description

[0041] Figure 1 This is a cross-sectional view of the cooking device provided in this embodiment of the invention when the door handle is in the retracted state;

[0042] Figure 2 yes Figure 1 A magnified view of a section at point I;

[0043] Figure 3 This is a partial cross-sectional view of the cooking device provided in this embodiment of the invention when the door handle is in the extended state;

[0044] Figure 4 This is a schematic diagram of the structure of the door assembly provided in an embodiment of the present invention;

[0045] Figure 5 This is an exploded view of the door assembly provided in an embodiment of the present invention;

[0046] Figure 6 This is a partial structural schematic diagram of the door assembly provided in an embodiment of the present invention;

[0047] Figure 7 This is a front view of the door assembly provided in an embodiment of the present invention;

[0048] Figure 8 yes Figure 7 Sectional view along the middle AA direction;

[0049] Figure 9 yes Figure 8 A magnified view of a section at point J;

[0050] Figure 10 yes Figure 7 Sectional view along the BB direction;

[0051] Figure 11 yes Figure 10 A magnified view of a section at point K;

[0052] Figure 12 This is a schematic diagram of the air duct frame provided in an embodiment of the present invention;

[0053] Figure 13 This is an exploded view of the door assembly provided in an embodiment of the present invention;

[0054] Figure 14 yes Figure 13 A magnified view of the area at point L.

[0055] The markings in the image are as follows:

[0056] 100. Door assembly; 200. Steam exhaust device; 210. Exhaust hood; 2101. Steam exhaust passage; 2102. Air duct for machine body cooling; 220. Exhaust fan; 300. Inner liner; 400. Machine casing; 500. Control device;

[0057] 1. Door handle; 11. Handle body; 111. Handle groove; 112. Connecting groove; 12. Handle panel;

[0058] 2. Handle bracket; 21. Top plate of the frame; 211. Steam vent; 22. Side plate of the frame; 221. Side ventilation hole; 23. Mounting part; 24. Protruding rib;

[0059] 3. Duct partition assembly; 31. Duct frame; 311. Outer frame; 3111. Door steam inlet; 312. Connecting plate; 313. Inner frame; 3131. Duct connection port; 314. Positioning protrusion; 32. Partition plate; 33. Supporting component;

[0060] 4. Machine door; 41. Outer door; 42. Inner door; 43. Door support;

[0061] 5. Door condenser assembly; 51. Condenser tube; 52. Radiator; 521. Heat sink fins;

[0062] 6. Handle drive component;

[0063] 10. Upper air duct; 20. Door steam passage; 30. Cold air inlet passage; 301. Steam heat dissipation passage; 302. Door heat dissipation passage; 303. Door connecting passage; 40. Door rear air vent. Detailed Implementation

[0064] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0065] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0066] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0067] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0068] This embodiment provides a cooking device that can heat food using steam, and can condense and release the steam generated during operation, reducing the steam emission temperature and volume, thereby improving the safety and reliability of the cooking device. The cooking device provided in this embodiment can be, but is not limited to, a steam oven, electric steamer, etc.

[0069] like Figure 1 As shown, the cooking equipment includes a body, a door assembly 100, a control device 500, and a steam supply device. The body includes a casing 400 and an inner pot 300 installed inside the casing 400, the inner pot 300 having a cooking cavity with a front opening. The door assembly 100 is located on the front of the body and can switch between a closed state (closing the cooking cavity opening) and an open state (opening the cooking cavity). The steam supply device supplies hot steam to the inner pot 300 to cook the food inside. The control device 500 is installed on the front of the body and above the door assembly 100, and is used by the user to operate the cooking equipment. The steam supply device is communicatively connected to the control device 500.

[0070] like Figures 1 to 3 As shown, to facilitate user operation of the door assembly 100, in this embodiment, the door assembly 100 includes a door 4 and a door handle 1. The door 4 is movably connected to the machine body, and the door handle 1 is located at the top of the door 4 and can switch between an extended state relative to the door 4 and a retracted state relative to the extended state. Therefore, when the door handle 1 is not needed, it is in the retracted state, and the front side of the door handle 1 does not protrude from the front side of the door 4, ensuring the flatness of the door assembly 100 and reducing the probability of the door handle 1 bumping into the user. When the door handle 1 is in the extended state, it protrudes forward relative to the door 4, making it convenient for the user to grip the door handle 1 and thus perform the door opening and closing operation.

[0071] Because the cooking equipment requires a continuous supply of hot steam to the inner pot 300 during the cooking process, in order to maintain the temperature within the inner pot 300, and at the same time, the steam needs to be released to prevent excessive pressure within the inner pot 300. To facilitate the release of steam from the inner pot 300, a steam vent is provided on the inner pot 300.

[0072] In this embodiment, the door 4 is provided with a door steam passage 20 and a door condensation assembly 5. When the door handle 1 is in the retracted state, the door steam passage 20 is connected to the steam discharge port of the inner liner 300, and the door condensation assembly 5 is used to condense the steam entering the door steam passage 20.

[0073] The door assembly 100 provided in this embodiment, by providing a door handle 1 with a retracted state and an extended state, allows the user to switch the door handle 1 to the retracted state when not using it to open or close the door, preventing the door handle 1 from protruding from the front of the door 4 and causing bumps to the user, thus improving the safety of the cooking equipment. When the user needs to use the door handle 1, it can be extended to meet the user's needs. By providing a door steam channel 20 for steam entry, when the door handle 1 is in the retracted state, steam in the inner pot 300 enters the door steam channel 20 through the steam exhaust port, thus achieving steam discharge from the inner pot 300 and solving the problem of difficult steam discharge caused by the movable door handle 1, ensuring... The steam in the inner liner 300 can be smoothly discharged, thus ensuring the normal use of the cooking equipment. By setting the steam discharge channel inside the door 4, the thickness of the door 4 itself can be used to set the door steam channel 20, thereby avoiding the problems of complex body structure and increased body size caused by placing the steam discharge channel inside the body, which is conducive to the miniaturization of the cooking equipment using this door assembly 100. By setting a door condensing assembly 5 inside the door 4 to condense the steam in the door steam channel 20, the steam condensation effect during the steam discharge process can be improved, thereby effectively reducing the steam temperature of the discharged door steam channel 20, reducing the amount of steam discharged from the door steam channel 20, and improving the user experience of the door assembly 100 and the cooking equipment.

[0074] To further improve the steam emission performance of the cooking equipment, in this embodiment, the cooking equipment also includes a steam emission device 200, which is disposed between the inner pot 300 and the casing 400. The steam emission device 200 has a steam emission channel 2101 inside, and the door steam channel 20 can be connected to the steam emission port through the steam emission channel 2101.

[0075] Specifically, the steam venting device 200 includes an exhaust hood 210 and an exhaust fan 220. The exhaust hood 210 is disposed between the inner liner 300 and the casing 400, and a steam venting channel 2101 is provided inside the exhaust hood 2100. The steam venting channel 2101 is connected to the steam venting port through a steam venting pipe. The exhaust fan 220 is installed on the exhaust hood 210 and is used to guide steam from the steam venting port into the steam venting channel 2101, and to cause the steam in the steam venting channel 2101 to flow to the door assembly 100. That is, when the door handle 1 is in the retracted state, the exhaust fan 220 promotes the steam in the inner liner 300 to flow sequentially to the steam venting channel 2101 and the door steam channel 20.

[0076] By installing a steam discharge device 200 between the inner liner 300 and the casing 400, it is easier to install the exhaust fan 220, thereby ensuring the smooth flow of steam from the steam discharge port to the door 4 and reducing the resistance to steam discharge. Simultaneously, the steam discharge device 200 facilitates the guidance of steam in the inner liner 300 to the door steam passage 20. In other embodiments, the steam discharge port and the door steam passage 20 can also be connected by a pipeline.

[0077] Preferably, the steam exhaust device 200 is located between the top of the inner liner 300 and the casing 400, so that the height of the steam exhaust device 200 is adapted to the height of the top of the door 4, which facilitates the connection between the steam exhaust channel 2101 and the upper end of the door steam channel 20, and also reduces the width of the cooking equipment in the front-back direction and the left-right direction.

[0078] It is understandable that the descriptions of directional words such as "front," "back," "up," and "down" in the preceding and following text are all based on the position of the cooking equipment relative to the user when it is in use. That is, the front side of a structure refers to the side of the structure facing the user, the back side or the side away from the user, the left side of a structure refers to the side of the structure closer to the user's left hand when the user is facing the cooking equipment, and the right side refers to the side of the structure closer to the user's right hand when the user is facing the cooking equipment.

[0079] It is worth noting that in this embodiment, the structure of the machine body, steam emission device 200, control device 500 and steam supply device can be set with reference to the prior art. This is not the focus of this invention, and this invention does not limit or elaborate on it.

[0080] like Figure 2 and Figure 3 As shown, in order to further improve the steam condensation effect, in this embodiment, a cold air inlet channel 30 is provided inside the door 4, which is separated from the door steam channel 20. The steam exhaust device 200 is provided with a body cooling air duct 2102 separated from the steam exhaust channel 2101. The air inlet of the exhaust fan 220 is connected to the body cooling air duct 2102, and the air outlet of the exhaust fan 220 is connected to the steam exhaust channel 2101. The exhaust fan 220 causes the external cooling airflow to flow through the cold air inlet channel 30, the body cooling air duct 2102 and the exhaust fan 220 in sequence to dissipate heat from the door condensation assembly 5.

[0081] By setting a cold air inlet channel 30 inside the door 4, the external cooling airflow dissipates heat from the door condenser assembly 5 as it passes through the cold air inlet channel 30. This quickly removes heat from the door condenser assembly 5, thus preventing the door condenser assembly 5 from overheating and reducing the steam condensation effect in the door steam channel 20. This ensures the steam condensation effect in the door steam channel 20, further reducing the gas temperature and steam content discharged from the door steam channel 20. At the same time, the cooling airflow passes through the body cooling air duct 2102 and the exhaust fan 220, and then enters the steam exhaust channel 2101, where it converges with the steam in the steam exhaust channel 2101. This mixing of the cooling airflow and steam reduces the gas temperature entering the door steam channel 20, further improving the steam condensation effect.

[0082] In other embodiments, the air inlet channel of the exhaust fan 220 can also be set on the body or in the cabinet where the cooking equipment is installed. When the exhaust fan 220 is running, it can not only promote the discharge of steam in the inner liner 300 to the steam discharge channel 2101, but also allow the external cooling airflow to enter the steam discharge channel 2101 through the air inlet channel and the exhaust fan 220 and converge with the steam, thereby improving the condensation effect of the steam.

[0083] To reduce interference between steam exhaust and cold air intake at the door assembly 100, in this embodiment, the upper end of the cold air intake channel 30 is closed, while the upper rear side is open to form a rear air vent 40. The door assembly 100 has an upper air duct 10 at the top of the door 4. When the door handle 1 is in the retracted state, the upper air duct 10 connects with the door steam channel 20. That is, the cold air intake channel 30 uses rear air intake, and the door steam channel 20 uses top air intake. Correspondingly, the steam exhaust channel 2101 is located below the body cooling air duct 2102. This achieves separation of the cold air exhaust and steam intake at the door 4, preventing airflow turbulence at the door assembly 100 from affecting steam exhaust and cooling airflow.

[0084] Furthermore, when the door handle 1 is in the extended state, the upper air duct 10 is connected to the front external space of the door assembly 100. That is, when the door handle 1 is in the retracted state, the steam in the inner liner 300 is discharged sequentially through the steam outlet, steam discharge channel 2101, upper air duct 10 and door steam channel 20, and the external cooling airflow flows sequentially through the cold air inlet channel 30, the body cooling air duct 2102 and the exhaust fan 220 before entering the steam discharge channel 2101 and mixing with the steam; when the door handle 1 is in the extended state, the steam in the inner liner 300 is discharged sequentially through the steam outlet, steam discharge channel 2101 and upper air duct 10 to the front of the door assembly 100.

[0085] This configuration ensures that when the door handle 1 is extended, the outlet end of the steam exhaust channel 2101 faces the door handle 1. This allows the steam exhaust channel 2101 to directly discharge through the gap between the control device 500 and the door handle 1 to the outside of the door assembly 100. This allows for selection of the steam discharge path based on the cooking status of the cooking equipment. For example, when the steam contains a lot of grease, it may not need to be discharged into the door steam channel 20, reducing the grease content inside the door 4, improving the ease of cleaning the door 4, and enhancing the long-term performance of the door 4. Alternatively, when the temperature rises too high at the door 4 and door handle 1, the door handle 1 can be extended, allowing the steam to be directly discharged to the outside of the door assembly 100 through the upper air duct 10. This also increases the contact area between the door handle 1 and the outside air, facilitating heat dissipation and preventing the door assembly 100 from overheating and affecting its use.

[0086] In other embodiments, the upper end of the door steam passage 20 is closed and the rear side is open, and the upper end of the cold air inlet passage 30 is connected to the upper air duct 10. That is, the door steam passage 20 adopts rear air intake, and the cold air inlet passage 30 adopts top air intake. Correspondingly, the steam exhaust passage 2101 is located below the body cooling air duct 2102. At this time, when the door handle 1 is in the extended state, the upper air duct 10 can communicate with the front space of the door assembly 100, so that the external cooling airflow can directly enter the body cooling air duct 2102 through the upper air duct 10; at the same time, regardless of whether the door handle 1 is in the extended or retracted state, the steam in the inner liner 300 always enters the interior of the door steam passage 20 through the steam exhaust port and the steam exhaust passage 2101.

[0087] It is worth noting that in another embodiment, the cold air inlet channel 30 is not provided inside the door 4, and the door steam channel 20 has a door steam inlet that runs through the rear side of the door 4, which is used to connect with the steam exhaust port. In another embodiment, the cold air inlet channel 30 is not provided inside the door 4, and a door steam inlet is provided at the upper end of the door steam channel 20. The door assembly 100 is provided with an upper air duct 10 above the door 4. When the door handle 1 is in the retracted state, the door steam inlet connects with the steam exhaust port through the upper air duct 10.

[0088] like Figures 4 to 6As shown, the machine door 4 includes an outer door 41 and an inner door 42 spaced apart inside the outer door 41. The machine door 4 also includes door supports 43, two of which are spaced apart in the left-right direction and sandwiched between the inner door 42 and the outer door 41. The inner door 42, outer door 41, and the two door supports 43 together form the interior space of the door. The machine door 4 has a transparent observation window for observing the cooking status of the food inside the cooking cavity. The door supports 43 are located outside the observation window to prevent their structure from being exposed to the user's view, thus avoiding a deterioration in the aesthetics of the machine door assembly 100 and the cooking equipment.

[0089] The door assembly 100 also includes a hinge structure that enables the door assembly 100 to rotate and connect with the machine body. The hinge structure is provided in a one-to-one correspondence with the door bracket 43, and the hinge structure is installed on the door bracket 43 on the corresponding side to improve the installation convenience and stability of the hinge structure. The specific structure of the door 4 can be set with reference to the prior art, which is not the focus of this invention, and this embodiment does not limit or elaborate on it.

[0090] In this embodiment, the door condenser assembly 5 is located outside the viewing window, thereby preventing the door condenser assembly 5 from being exposed to the user's view, improving the aesthetics of the door assembly 100, and thus enhancing the user experience of the cooking equipment.

[0091] It is worth noting that the door condensation assembly 5 being located outside the observation window specifically means that on the projection plane where the front side of the machine door 4 is located, the projection of the door condensation assembly 5 on that projection plane is outside the projection range of the observation window on that projection plane.

[0092] To improve steam discharge efficiency, in this embodiment, one door condenser assembly 5 is provided on each of the left and right sides of the observation window. This reduces the lateral size of a single door condenser assembly 5 while increasing its condensation range, thereby enhancing the steam condensation effect. In this embodiment, the door steam passage 20 is provided in a one-to-one correspondence with the door condenser assembly 5, thereby increasing the channels for steam discharge inside the door 4, reducing steam discharge resistance, and improving steam discharge efficiency. In other embodiments, the door condenser assembly 5 may be provided only on one side of the observation window.

[0093] In this embodiment, the door condenser assembly 5 is disposed in the space inside the door, that is, the door condenser assembly 5 is located between the inner door 42 and the outer door 41, thereby allowing the door condenser assembly 5 to be concealed inside the machine door 4, reducing interference between the door condenser assembly 5 and the inner liner 300; at the same time, this arrangement also facilitates the use of the space inside the door between the inner door 42 and the outer door 41 to install the door condenser assembly 5, improving the structural compactness of the machine door assembly 100.

[0094] To improve the structural compactness of the door assembly 100, in this embodiment, the door condenser assembly 5 includes a condenser tube 51, which is thermally conductive, and the inner cavity of the condenser tube 51 forms a door steam channel 20. This allows the door steam channel 20 to be located inside the condenser tube 51, avoiding the need for additional door steam channels 20 at other locations inside the door 4. Simultaneously, this arrangement increases the contact area between the steam entering the door steam channel 20 and the condenser tube 51, thereby improving the steam condensation effect.

[0095] In other embodiments, the door condenser assembly 5 includes a condenser tube 51, which is made of thermally conductive material. A door vapor channel 20 is disposed on the outside of the condenser tube 51, and one outer wall of the condenser tube 51 is the channel wall of the door vapor channel 20. Cooling fluid is introduced into the condenser tube 51. The cooling fluid can be a cooling gas or a cooling liquid. The steam in the door vapor channel 20 and the cooling fluid in the condenser tube 51 are heat-conducted through the tube wall of the condenser tube 51, thereby removing the heat of the steam in the door vapor channel 20 and realizing the condensation of the steam in the door vapor channel 20.

[0096] The condenser pipe 51 extends vertically along the door 4 and is through-connected at both ends. This reduces the footprint of the condenser pipe 51, minimizes interference between the condenser pipe 51 and other internal structures of the door 4, and facilitates the processing and assembly of the door condenser assembly 5. Simultaneously, the open ends of the condenser pipe 51 create a steam inlet at the upper end and a steam outlet at the lower end, improving the smooth flow of steam in and out of the condenser pipe 51. In other embodiments, the condenser pipe 51 may also be bent or arranged in a serpentine pattern.

[0097] To further enhance the condensation effect on steam, the door condenser assembly 5 also includes a radiator 52, which is installed on the outside of the condenser tube 51. The radiator 52 is used to quickly dissipate heat from the condenser tube 51 to other locations through heat conduction with it, thereby preventing the condenser tube 51 from overheating and losing its condensation effect on steam, thus improving the condensation efficiency of the door condenser assembly 5. In other embodiments, the door condenser assembly 5 may also omit the radiator 52 and instead directly remove heat from the condenser tube 51 by a cooling airflow passing through it.

[0098] In this embodiment, the radiator 52 is disposed in the cold air inlet channel 30, so that the cooling airflow passes through the radiator 52 when it flows through the cold air inlet channel 30, so that the cooling airflow carries away the heat at the radiator 52, thereby realizing the rapid heat dissipation of the condenser tube 51 by the radiator 52, and thus improving the condensation and cooling effect of the steam in the door steam channel 20.

[0099] like Figures 6 to 11As shown, the radiator 52 includes a plurality of heat dissipation fins 521 arranged side by side and spaced apart. The heat dissipation fins 521 are connected to the condenser tube 51, and an airflow channel is formed between two adjacent heat dissipation fins 521. In this embodiment, the airflow channel is arranged through the height direction of the door 4. The heat dissipation fins 521 can be integrally formed or welded to the condenser tube 51. In other embodiments, the radiator 52 also includes a heat dissipation plate, and all heat dissipation fins 521 are perpendicularly connected to the heat dissipation plate. The heat dissipation plate is attached to and detachably connected to one side of the condenser tube 51.

[0100] To further enhance heat dissipation and condensation, the radiator 52 and condenser pipe 51 are arranged side-by-side in the front-to-back direction. This allows the door condenser assembly 5 to be positioned outside the observation window while maintaining the same distance between the inner door 42 and the outer door 41. This increases the width of the radiator 52 and condenser pipe 51 in the left-to-right direction, thereby increasing the contact area between the radiator 52 and the condenser pipe 51 and improving the heat dissipation effect of the radiator 52 on the condenser pipe 51. In other embodiments, the radiator 52 and condenser pipe 51 may also be arranged side-by-side in the left-to-right direction.

[0101] Furthermore, the condenser tube 51 has a flat tubular structure, and its width in the left-right direction is greater than its width in the front-back direction. This allows for an increase in the cross-sectional area of ​​the condenser tube 51 while maintaining the same distance between the inner door 42 and the outer door 41, reducing resistance to steam discharge and improving the smoothness of steam discharge and the steam condensation effect. Preferably, the length of the condenser tube 51 in the left-right direction is greater than three times its width in the front-back direction, so as to ensure sufficient cross-sectional area of ​​the door steam passage 20 while reducing the space occupied by the condenser tube 51 in the front-back direction, thereby facilitating the arrangement of the radiator 52.

[0102] Furthermore, the width of the condenser tube 51 in the front-to-back direction is smaller than the width of the radiator 52 in the front-to-back direction, thereby providing sufficient space for the installation of the radiator 52, ensuring the smooth flow of air or cooling air through the radiator 52, and improving the heat dissipation effect of the radiator 52 on the condenser tube 51.

[0103] In this embodiment, the radiator 52 is located between the condenser pipe 51 and the inner door 42, that is, the condenser pipe 51 is located on the side of the radiator 52 away from the inner liner 300. This can reduce the impact of the high temperature in the inner liner 300 on the condenser pipe 51 and ensure the condensation effect of the condenser pipe 51 on the steam. At the same time, this arrangement makes the door steam passage 20 located in front of the cold air inlet passage 30 where the radiator 52 is located. This facilitates the connection between the door steam passage 20 and the upper air duct 10, and enables the rear end of the cold air inlet passage 30 to be open.

[0104] The distance between the heat dissipation fins 521 and the inner door 42 is preferably less than 10 mm to reduce the distance between them, thereby allowing most of the cooling airflow entering the steam heat dissipation channel 301 to flow through the heat dissipation channel and improve the heat dissipation effect. Preferably, the heat dissipation fins 521 abut against the inner door 42.

[0105] It is understood that in other embodiments, if the upper air duct 10 is an upper cooling air duct and the rear end of the door steam passage 20 is open, the radiator 52 can be placed between the condenser pipe 51 and the outer door 41.

[0106] like Figures 6 to 12 As shown, a cold air inlet channel 30 is provided inside the door 4. In this embodiment, an air duct frame 31 is provided between the inner door 42 and the outer door 41. The air duct frame 31, the inner door 42, and the outer door 41 together form the cold air inlet channel 30, which is used to introduce cooling airflow. The door condenser assembly 5 is installed inside the cold air inlet channel 30. By providing the air duct frame 31, the installation of the door condenser assembly 5 can be positioned and connected. At the same time, it also helps to limit the area of ​​the cold air inlet channel 30, thereby facilitating the control of the air inlet pressure and airflow of the cold air inlet channel 30.

[0107] In other embodiments, the space inside the door, excluding the space occupied by the door condensation assembly 5, forms a cold air intake channel 30. That is, the inner door 42 and the outer door 41 are not provided with air duct frames 31, and the two door supports 43 on the left and right sides form the left and right boundaries of the cold air intake channel 30.

[0108] In this embodiment, the condenser pipe 51 and the air duct frame 31 are detachably connected, which allows the condenser pipe 51 and the air duct frame 31 to be made of different materials, improving the flexibility of material selection for the air duct frame 31. At the same time, this arrangement allows the condenser pipe 51 and the radiator 52 to be assembled or processed into a whole before being installed on the air duct frame 31, which facilitates the installation and removal of the door condenser assembly 5.

[0109] In other embodiments, the condenser pipe 51 can also be integrally formed with the air duct frame 31, thereby allowing the condenser pipe 51 and the air duct frame 31 to share a partial structure, thus reducing the space occupied by the assembly formed by the air duct frame 31 and the condenser pipe 51 in the thickness direction of the door 4. In this configuration, the door condenser assembly 5 may not have a heat sink 52, or the heat sink 52 may be detachably connected to the condenser pipe 51.

[0110] In this embodiment, the duct frame 31 closes the upper ports of the cold air inlet channel 30 and the door steam channel 20 to prevent the cold air inlet channel 30 from communicating with the upper duct 10. An air inlet group is provided at the top of the duct frame 31, with each air inlet group corresponding to a door condensation assembly 5. Each air inlet group includes several door steam inlets 3111. When the door handle 1 is in the retracted state, steam enters the door steam channel 20 through the door steam inlets 3111. This prevents the duct frame 31 from affecting the steam entry into the door steam channel 20. It also allows for control of the amount and speed of steam entering the door steam channel 20 by adjusting the total opening area and position of the door steam inlets 3111. This avoids the problem of poor steam condensation effect caused by excessively fast or large steam entry, thus better balancing the relationship between steam discharge rate and steam condensation effect.

[0111] In this embodiment, each air inlet group includes a plurality of steam inlets 3111 spaced apart in the left-right direction. In other embodiments, each air inlet group may also include only one steam inlet 3111, which is an elongated hole extending in the left-right direction.

[0112] In this embodiment, the duct frame 31 includes an inner frame portion 313 and an outer frame portion 311 spaced outside the inner frame portion 313. The outer frame portion 311, the inner frame portion 313, the outer door 41, and the inner door 42 together form a steam heat dissipation channel 301. The cold air inlet channel 30 also includes the steam heat dissipation channel 301. The door condenser assembly 5 is located in the steam heat dissipation channel 301. The door 4 has a transparent observation window, and the inner space of the inner frame portion 313 faces the observation window. This arrangement of the duct frame 31, by forming the steam heat dissipation channel 301 between the inner frame portion 313 and the outer frame portion 311, can better position the door condenser assembly 5 on the duct frame 31, effectively ensuring that the door condenser assembly 5 is installed outside the observation window, thus improving the installation reliability of the door condenser assembly 5.

[0113] To facilitate the intake of cooling airflow, the lower end of the steam heat dissipation channel 301 is open, allowing the cooling airflow to enter the steam heat dissipation channel 301 through the bottom of the door 4, improving airflow smoothness and simplifying the structure of the duct frame 31 and the door 4. The lower end of the door steam channel 20 is also open.

[0114] To improve the ease of installation of the door condenser assembly 5, the duct frame 31 also includes a connecting plate portion 312. The connecting plate portion 312 is connected between the inner frame portion 313 and the outer frame portion 311, and the connecting plate portion 312 fits against the inner door 42 or the outer door 41. The door condenser assembly 5 is installed on the connecting plate portion 312. The connection plate portion 312 connects the inner frame portion 313 and the outer frame portion 311, making the duct frame 31 a fully detachable structure, which facilitates the installation of the duct frame 31 inside the door 4. At the same time, the connection plate portion 312 facilitates the installation of the door condenser assembly 5 on the duct frame 31, so that when assembling the door assembly 100, the door condenser assembly 5 can be installed on the duct frame 31 first, and then the duct frame 31 can be installed inside the door 4. This simplifies the assembly process and improves the ease of installation and disassembly of the door condenser assembly 5. Specifically, in this embodiment, the connecting plate portion 312 is connected between the front side of the inner frame portion 313 and the front side of the outer frame portion 311, and the connecting plate portion 312 is fitted with the outer door 41.

[0115] The connecting plate 312 is detachably connected to the condenser pipe 51. The connection method can be, but is not limited to, screw connection, snap-fit, or adhesive connection. Preferably, the left and right sides of the condenser pipe 51 abut against the inner frame 313 and the outer frame 311 respectively, so as to increase the width of the condenser pipe 51 in the left and right direction while keeping the dimensions of the inner frame 313 and the outer frame 311 unchanged, thereby increasing the width of the door steam passage 20 in the left and right direction.

[0116] To prevent the door 4 from overheating during steam discharge, in this embodiment, an inner air duct is formed by the inner side of the inner frame 313, the inner door 42, and the outer door 41. The cold air inlet channel 30 includes the inner air duct, which is used to introduce cooling airflow to cool the door 4. This allows the cooling airflow to remove heat from the door 4, preventing the door 4 from overheating and causing burns to the user, thus improving the safety of the door assembly 100 and the cooking equipment.

[0117] In this embodiment, a door connecting channel 303 is formed between the top of the inner frame portion 313 and the top of the outer frame portion 311. An air duct connecting opening 3131 is provided at the top of the inner frame portion 313. The steam heat dissipation channel 301 is connected to the door connecting channel 303, and the inner air duct is connected to the door connecting channel 303 through the air duct connecting opening 3131. This allows the cooling airflow through the steam heat dissipation channel 301 and the cooling airflow through the inner air duct to converge at the door connecting channel 303, thereby facilitating the connection between the cold air inlet channel 30 and the rear air vent 40.

[0118] That is, in this embodiment, both the inner frame portion 313 and the outer frame portion 311 are U-shaped structures with downward openings, thereby forming an inverted U-shaped air duct with downward openings enclosed by the inner frame portion 313 and the outer frame portion 311. The air ducts on both sides of the inverted U-shaped air duct form two steam heat dissipation channels 301, and the top of the inverted U-shaped air duct forms a door connecting channel 303.

[0119] In other embodiments, the outer frame 311 has an inverted U-shaped structure, and the inner frame 313 includes two inner frame plates that are opposite to each other and spaced apart, with the top of the inner frame plates abutting against the top of the outer frame 311. That is, the air duct frame 31 does not have a door connecting channel 303, and the upper end of the steam heat dissipation channel 301 and the upper end of the inner air duct are respectively connected to the air vent 40 behind the door.

[0120] A partition plate 32 is installed on the inner side of the inner frame 313. The area of ​​the partition plate 32 facing the observation window is transparent. The partition plate 32 is spaced apart from both the outer door 41 and the inner door 42. The inner air duct is divided into a front air duct and a rear air duct by the partition plate 32. The air duct connection port 3131 is connected to the front air duct and / or the rear air duct.

[0121] In this embodiment, the air duct connection port 3131 is connected to the front air duct, thereby making the cold air inlet channel 30 include the front air duct. Part of the cooling airflow enters the door connection channel 303 through the front air duct and the air duct connection port 3131, that is, the front air duct forms the door heat dissipation channel 302. This arrangement allows the air duct that introduces the cooling airflow to be located on the side of the partition plate 32 away from the inner liner 300, thereby reducing the impact of the high temperature in the inner liner 300 on the temperature of the cooling airflow and ensuring the cooling effect of the cooling airflow on the door 4.

[0122] The air duct connection port 3131 is preferably provided in multiple intervals along the left and right directions to increase the coverage area of ​​the air duct connection port 3131 on the top of the inner frame 313, thereby improving the uniformity of the cooling airflow from the door heat dissipation channel 302 to the door connection channel 303 in the left and right directions, and ensuring the overall structural strength and rigidity of the inner frame 313.

[0123] The partition 32 is preferably made of a transparent heat-insulating material to avoid obstructing the user's view of the cooking cavity and to reduce heat transfer between the front and rear air ducts. The partition 32 is preferably made of glass, but can also be made of transparent plastic or other materials. In other embodiments, the partition 32 may be transparent only to the area facing the viewing window.

[0124] To improve the ease of installation of the partition plate 32 on the inner frame 313, support members 33 are provided at the upper and lower ends of the left and right inner sides of the inner frame 313. Each support member 33 has a support groove, which passes through the side of the support member 33 away from the outer frame 311. The support grooves of two support members 33 located on the same side are arranged opposite each other, and the four corners of the partition plate 32 are respectively inserted into the support grooves of the four support members 33.

[0125] In this embodiment, the upper end of the inner door 42 is lower than the top end of the air duct frame 31, and a rear air vent 40 is formed between the upper end of the inner door 42 and the top end of the air duct frame 31. The cold air inlet channel 30 is connected to the rear air vent 40. This facilitates the processing of the rear air vent 40, avoids the need to create holes in the inner door 42, and reduces the processing difficulty of the door 4. Specifically, the top end of the outer frame 311 is higher than the upper end of the inner door 42, the top end of the inner frame 313 is lower than the upper end of the inner door 42, and the door connecting channel 303 is positioned directly opposite the rear air vent 40.

[0126] In this embodiment, positioning protrusions 314 are provided on the rear sides of the left and right sides of the outer frame portion 311 and / or the inner frame portion 313. The positioning protrusions 314 are supported on the top of the inner door 42, thereby defining the installation position of the air duct partition assembly 3 relative to the door 4 in the height direction, and realizing the installation and positioning of the air duct partition assembly 3 inside the door 4.

[0127] like Figure 2 , Figure 3 , Figure 13 and Figure 14 As shown, in this embodiment, the upper air duct 10 is disposed inside the door handle 1. The lower side of the door handle 1 is provided with a handle lower air vent communicating with the upper air duct 10, and the rear side of the door handle 1 is provided with a handle rear air vent communicating with the upper air duct 10. When the door handle 1 is in the retracted state, the upper air duct 10 is connected to the upper end of the door steam passage 20 through the handle lower air vent, and the handle rear air vent is used to connect with the corresponding steam exhaust passage 2101.

[0128] By setting the upper air duct 10 on the door handle 1, it is convenient to set the shape, position and size of the upper air duct 10, so that the setting position of the upper air duct 10 is more compatible with the position and shape of the door steam passage 20, and the setting position flexibility of the upper air duct 10 is improved. At the same time, since the upper air duct 10 has a lower air vent under the handle, the upper air duct 10 can be connected to the door steam passage 20 through the lower air vent under the handle. This allows the connection position and size of the connection between the upper air duct 10 and the door steam passage 20 to be set, ensuring the reliability of the connection between the upper air duct 10 and the door steam passage 20.

[0129] In other embodiments, the upper air duct 10 may also be formed by the top of the door handle 1 and the top of the door 4. Specifically, the door handle 1 includes a handle panel 12 extending in the left-right direction. When the door handle 1 is in the retracted state, the lower end of the handle panel 12 extends to the top of the door 4, and the upper end of the handle panel 12 is used to cooperate with the control device 500 on the upper side of the door assembly 100, so that the rear side of the handle panel 12, the top of the door 4, and the control device 500 form an upper air duct 10. That is, when the door handle 1 is in the retracted state, the door handle 1 closes the top and front of the upper air duct 10, and the steam discharged from the inner pot 300 can enter the door steam channel 20 through the upper steam channel; when the door handle 1 is in the extended state, the front end of the upper steam channel is open, thereby allowing the steam discharged from the inner pot 300 to be directly discharged to the outside of the door assembly 100 and the cooking equipment through the front end opening of the upper steam channel.

[0130] In this embodiment, one steam passage 20 is provided on each of the left and right sides of the observation window, and an upper air passage 10 is provided on each of the left and right ends of the door handle 1, thereby making the upper air passage 10 and the steam passage 20 correspond one-to-one, improving the smoothness of the connection between the upper air passage 10 and the steam passage 20.

[0131] Furthermore, a handle groove 111 is provided through the door handle 1, and two upper air ducts 10 are respectively located on the left and right sides of the handle groove 111. By providing a handle groove 111 on the door handle 1, the convenience of the user holding the door handle 1 can be improved, and the ease of operation of the door assembly 100 can be improved; by setting the two upper air ducts 10 on the left and right sides of the handle groove 111 respectively, interference between the upper air ducts 10 and the handle groove 111 can be effectively avoided.

[0132] In this embodiment, the front and rear sides of the handle groove 111 are closed, and a connecting groove 112 is provided on the rear side of the door handle 1. The two ends of the connecting groove 112 are respectively connected to the two upper air ducts 10. That is, the connecting groove 112 extends in the left and right direction and is located on the rear side of the handle groove 111. The rear air vent of the handle is set at the bottom of the connecting groove 112. The setting of the connecting groove 112 can reduce the alignment accuracy between the rear air vent of the handle and the steam exhaust channel 2101, ensuring that the steam in the steam exhaust channel 2101 can enter the upper air duct 10 through the connecting groove 112, which is conducive to the convenience of communication between the upper air duct 10 and the steam exhaust channel 2101.

[0133] In other embodiments, the handle groove 111 can penetrate the rear sidewall of the door handle 1, thereby making the door handle 1 have a U-shaped structure with the opening facing backward, simplifying the structure of the door handle 1 and reducing the processing difficulty of the door handle 1.

[0134] The door handle 1 includes a handle body 11 and a handle panel 12 disposed on the front side of the handle body 11. The handle body 11 is provided with an upper air duct 10 and a handle groove 111. The handle panel 12 enhances the aesthetic appearance of the door handle 1 and better ensures that the shape of the door handle 1 is consistent with the shape of the door 4 when it is in the retracted state, thereby improving the ease of cleaning the door handle 1. The left and right sides of the handle panel 12 extend outward from the handle body 11, and the left and right sides of the handle panel 12 are flush with the left and right sides of the outer door 41.

[0135] like Figures 2 to 4 As shown, to improve the ease of installation of the door handle 1 on the machine door 4, in this embodiment, the machine door assembly 100 further includes a handle bracket 2. The handle bracket 2 is installed at the top of the machine door 4, and the door handle 1 is movably installed on the handle bracket 2. The handle bracket 2 simplifies the structure of the machine door 4 and ensures the reliability of the door handle 1 installation. The door handle 1 is installed at the top of the air duct partition assembly 3 so that the door handle 1 blocks the air duct partition assembly 3 upwards.

[0136] In this embodiment, the door handle 1 can slide relative to the door 4 in a front-to-back direction to switch between an extended state and a retracted state. This reduces the space required for the door handle 1 to move and reduces interference between the door handle 1 and structures such as the control device 500 and the door 4. In other embodiments, the door handle 1 can also be rotatably mounted to achieve rotational switching between the extended and retracted states.

[0137] In this embodiment, the handle bracket 2 covers the rear air vent 40 of the door, and the handle bracket 2 is provided with a plurality of side ventilation holes 221, which are connected to the rear air vent 40. Thus, the flow rate of cooling air can be controlled by the size, arrangement and number of the side ventilation holes 221.

[0138] Specifically, the handle bracket 2 includes a top plate portion 21 and a side plate portion 22 connected to the rear of the top plate portion 21. The top plate portion 21 has a steam vent 211 that connects to the door steam passage 20. The side plate portion 22 covers the rear air vent 40 of the door and has a side ventilation hole 221. The door handle 1 is movably mounted on the top plate portion 21. By providing the steam vent 211 on the handle bracket 2, the connection between the upper air passage 10 and the door steam passage 20 can be avoided.

[0139] At least a portion of the side ventilation holes 221 are correspondingly arranged with the door condenser assembly 5 in the front-rear direction, thereby allowing a portion of the cooling airflow from the steam heat dissipation channel 301 to directly enter the body cooling air duct 2102 through the side ventilation holes 221. The side ventilation holes 221 are preferably elongated holes extending in the left-right direction, so as to reduce the width requirement of the side ventilation holes 221 while increasing the ventilation area of ​​the side ventilation holes 221, thereby improving the smoothness of the cooling airflow from the cold air inlet channel 30 to the body cooling air duct 2102.

[0140] Furthermore, when the door handle 1 is in the extended state, the door handle 1 closes the steam vent 211, thereby blocking the connection between the upper air duct 10 and the door steam passage 20 when the door handle 1 is in the extended state. This arrangement can prevent steam entering the upper air duct 10 from entering the door steam passage 20 when the door handle 1 is in the extended state, thus effectively controlling the steam discharge path when the door handle 1 is in the extended state.

[0141] In this embodiment, two sets of steam vents 211 are provided, each set corresponding to one of the two door steam channels 20. Each set of steam vents 211 includes at least one steam vent 211. Thus, each upper air duct 10 is connected to the corresponding door steam channel 20 through the corresponding set of steam vents 211. Preferably, each set of steam vents 211 includes multiple steam vents 211 spaced apart in the left-right direction. The multiple steam vents 211 in the same set are all connected to the corresponding door steam channel 20 and upper air duct 10, thereby reducing the ventilation area of ​​a single steam vent 211 and facilitating the control of the amount of steam entering the door steam channel 20. In other embodiments, the steam vent 211 can also be an elongated hole extending in the left-right direction.

[0142] The handle bracket 2 also includes a mounting part 23, which protrudes from the lower side of the top plate 21 and corresponds one-to-one with the door bracket 43. The mounting part 23 and the door bracket 43 are detachably connected to improve the connection convenience between the handle bracket 2 and the door 4. The mounting part 23 and the door bracket 43 can be connected by screws, snap-fit, or other detachable connection methods, but are not limited to these.

[0143] like Figure 9 and Figure 14 As shown, in this embodiment, the top plate 21 has a protruding rib 24 extending from top to bottom. The rib 24 abuts against the upper side of the positioning protrusion 314, that is, the positioning protrusion 314 is sandwiched between the inner door 42 and the rib 24 to achieve the installation and positioning of the air duct frame 31 on the door 4. Furthermore, the rear sides of the inner frame 313 and the outer frame 311 abut against the front side of the rib 24 to further improve the assembly position accuracy of the air duct partition assembly 3, the door 4, and the handle bracket 2.

[0144] like Figure 6 and Figure 14 As shown, to improve the cooking experience, in this embodiment, the door assembly 100 also includes a handle drive assembly 6, which is used to drive the door handle 1 to switch between a retracted state and an extended state, thereby enabling automated control of the door handle 1, so that the control device 500 can automatically control the operation of the door handle 1 according to the steam state in the inner pot 300.

[0145] For example, when the temperature of the door handle 1 is detected to be higher than the preset temperature, the handle drive assembly 6 can be controlled to drive the door handle 1 to the extended state, so that the steam can be discharged directly through the upper channel without passing through the door steam channel 20, thereby achieving rapid steam discharge and increasing the contact area between the door handle 1 and the outside air, thereby cooling the door handle 1 and preventing the door handle 1 from overheating and causing burns to the user.

[0146] The handle drive assembly 6 is preferably installed inside the door 4, with one on each side of the door 4, to ensure the force balance at both ends of the door handle 1 and reduce the driving force requirement for a single handle drive assembly 6, thus allowing the handle drive assembly 6 to be miniaturized. The handle drive assembly 6 is preferably located between the air duct partition assembly 3 and the door bracket 43, thereby preventing steam from interfering with the handle drive assembly 6 and improving the operational reliability of the handle drive assembly 6.

[0147] It is worth noting that the handle drive assembly 6 can adopt any structure that enables the door handle 1 to switch between the extended and retracted states. This embodiment does not limit or elaborate on the structure of the handle drive assembly 6.

[0148] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A door assembly, characterized in that, Includes a machine door (4) and a door handle (1), the door handle (1) being installed on the top of the machine door (4), and the door handle (1) being able to switch between an extended state that extends forward relative to the machine door (4) and a retracted state that retracts inward relative to the extended state; The machine door (4) is provided with a door steam passage (20) and a door condenser assembly (5). When the door handle (1) is in the retracted state, the door steam passage (20) is connected to the steam discharge port of the inner liner (300). The lower end of the door steam passage (20) is open. The door condenser assembly (5) is used to condense the steam entering the door steam passage (20). The steam discharge channel is connected to the steam discharge port. The door assembly is provided with an upper air duct (10) at the top of the door (4). The upper air duct (10) is located inside the door handle (1). The lower side of the door handle (1) is provided with a handle lower air vent connected to the upper air duct (10). The rear side of the door handle (1) is provided with a handle rear air vent connected to the upper air duct (10). When the door handle (1) is in the retracted state, the upper air duct (10) is connected to the upper end of the door steam passage (20) through the lower air vent of the handle, and the rear air vent of the handle is connected to the steam exhaust passage; when the door handle (1) is in the extended state, the upper air duct (10) is connected to the front external space of the door assembly.

2. The door assembly according to claim 1, characterized in that, The door (4) has an observation window, and the door condensation assembly (5) is located outside the observation window.

3. The door assembly according to claim 2, characterized in that, One of the door condensation components (5) is provided on each of the left and right sides of the observation window.

4. The door assembly according to claim 1, characterized in that, The door (4) includes an outer door (41) and an inner door (42) spaced apart from each other. An inner space is formed between the outer door (41) and the inner door (42), and the door condensation assembly (5) is disposed in the inner space.

5. The door assembly according to any one of claims 1-4, characterized in that, The door condenser assembly (5) includes a condenser tube (51) which is thermally conductive and whose inner cavity forms the door vapor passage (20).

6. The door assembly according to claim 5, characterized in that, The condenser tube (51) extends along the height direction of the door (4) and is open at both ends.

7. The door assembly according to claim 5, characterized in that, The door condenser assembly (5) also includes a radiator (52) which is mounted on the outside of the condenser tube (51).

8. The door assembly according to claim 7, characterized in that, The radiator (52) includes a plurality of heat dissipation fins (521) arranged side by side and spaced apart, and the heat dissipation fins (521) are connected to the condenser tube (51).

9. The door assembly according to claim 7, characterized in that, The radiator (52) and the condenser (51) are arranged side by side in the front-to-back direction.

10. The door assembly according to claim 9, characterized in that, The condenser tube (51) has a flat tubular structure, and the width of the condenser tube (51) in the left-right direction is greater than the width of the condenser tube (51) in the front-back direction. And / or, the width of the condenser tube (51) in the front-back direction is smaller than the width of the radiator (52) in the front-back direction.

11. The door assembly according to claim 7, characterized in that, The machine door (4) includes an outer door (41) and an inner door (42) spaced apart on the rear side of the outer door (41). The door condenser assembly (5) is disposed between the outer door (41) and the inner door (42). The radiator (52) is located between the condenser pipe (51) and the inner door (42).

12. The door assembly according to claim 5, characterized in that, The machine door (4) includes an outer door (41) and an inner door (42) spaced apart behind the outer door (41). A duct frame (31) is provided between the inner door (42) and the outer door (41). The duct frame (31), the inner door (42) and the outer door (41) together form a cold air inlet channel (30). The cold air inlet channel (30) is used to introduce cooling airflow. The door condenser assembly (5) is installed in the cold air inlet channel (30).

13. The door assembly according to claim 12, characterized in that, The condenser tube (51) is detachably connected to the air duct frame (31); Alternatively, the condenser tube (51) may be integrally formed with the air duct frame (31).

14. The door assembly according to claim 12, characterized in that, The top of the air duct frame (31) is provided with an air inlet group, which is set one-to-one with the door condensation assembly (5). The air inlet group includes several door steam inlets (3111). When the door handle (1) is in the retracted state, the door steam channel (20) is supplied with steam through the door steam inlets (3111).

15. The door assembly according to claim 12, characterized in that, The air duct frame (31) includes an inner frame (313) and an outer frame (311) spaced outside the inner frame (313). The outer frame (311), the inner frame (313), the outer door (41), and the inner door (42) form a steam heat dissipation channel (301). The cold air inlet channel (30) includes the steam heat dissipation channel (301). The door condensation assembly (5) is located in the steam heat dissipation channel (301). The machine door (4) has a transparent observation window. The inner space of the inner frame (313) faces the observation window.

16. The door assembly according to claim 15, characterized in that, The lower end of the steam heat dissipation channel (301) is open.

17. The door assembly according to claim 15, characterized in that, The duct frame (31) also includes a connecting plate (312), which is connected between the inner frame (313) and the outer frame (311). The connecting plate (312) is attached to the rear side of the outer door (41) or the front side of the inner door (42). The door condensation assembly (5) is installed on the connecting plate (312).

18. The door assembly according to claim 15, characterized in that, An inner air duct is formed by the inner side of the inner frame (313), the inner door (42) and the outer door (41). The cold air inlet channel (30) includes the inner air duct, which is used to introduce cooling airflow to cool the machine door (4).

19. The door assembly according to claim 18, characterized in that, A door connecting channel (303) is formed between the top of the inner frame portion (313) and the top of the outer frame portion (311). An air duct connecting port (3131) is opened at the top of the inner frame portion (313). The steam heat dissipation channel (301) is connected to the door connecting channel (303). The inner air duct is connected to the door connecting channel (303) through the air duct connecting port (3131).

20. The door assembly according to claim 19, characterized in that, A partition plate (32) is installed on the inner side of the inner frame (313). The area of ​​the partition plate (32) facing the observation window is transparent. The partition plate (32) is spaced apart from the outer door (41) and the inner door (42). The inner air duct is divided into a front air duct and a rear air duct by the partition plate (32). The air duct connection port (3131) is connected to the front air duct and / or the rear air duct.

21. The door assembly according to claim 12, characterized in that, A rear air vent (40) is formed between the upper end of the inner door (42) and the top of the air duct frame (31), and the cold air inlet channel (30) is connected to the rear air vent (40).

22. The door assembly according to claim 21, characterized in that, The top of the air duct frame (31) is equipped with a handle bracket (2), the door handle (1) is movably installed on the handle bracket (2), the handle bracket (2) covers the air vent (40) behind the door, the handle bracket (2) is provided with a number of side ventilation holes (221), and the side ventilation holes (221) are connected to the air vent (40) behind the door.

23. The door assembly according to claim 22, characterized in that, At least part of the side ventilation hole (221) is positioned opposite the door condenser assembly (5).

24. The door assembly according to claim 22, characterized in that, The handle bracket (2) includes a top plate (21) and a side plate (22) connected to the rear side of the top plate (21). The top plate (21) has a steam vent (211) that connects to the steam passage (20) of the door. The side plate (22) covers the rear air vent (40) of the door and has a side ventilation hole (221).

25. A cooking appliance comprising a body having an inner pot (300) having a steam vent, characterized in that, Includes the door assembly as described in any one of claims 1-24, wherein the door (4) is installed on the front side of the body, and when the door handle (1) is in the retracted state, the steam outlet is connected to the door steam passage (20).

26. The cooking apparatus according to claim 25, characterized in that, A steam discharge device (200) is provided between the inner liner (300) and the casing (400) of the body. The steam discharge device (200) includes an exhaust hood (210) and an exhaust fan (220). The exhaust hood (210) has a steam discharge channel (2101) which is connected to the steam discharge port. When the door handle (1) is in the retracted state, the exhaust fan (220) promotes the steam in the inner liner (300) to flow sequentially to the steam exhaust channel (2101) and the door steam channel (20).

27. The cooking apparatus according to claim 26, characterized in that, The steam exhaust device (200) is provided with an organic cooling air duct (2102), and the door (4) is provided with a cold air inlet channel (30). The air inlet of the exhaust fan (220) is connected to the organic cooling air duct (2102), and the air outlet of the exhaust fan (220) is connected to the steam exhaust channel (2101). The exhaust fan (220) causes the external cooling airflow to flow sequentially through the cold air inlet channel (30), the organic cooling air duct (2102), and the exhaust fan (220) to dissipate heat from the door condensation assembly (5).

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