Door body of cooking appliance and cooking appliance

Abstract

The application relates to the technical field of household appliances, and discloses a door body of a cooking appliance and the cooking appliance. The door body comprises a door outer frame, a door framework fixedly arranged in the inside of the door outer frame, and a metal reinforcing assembly with a first connecting surface and a second connecting surface, wherein the first connecting surface is fixedly connected with the door framework, and the second connecting surface is fixedly connected with the door outer frame. The door body is fixedly connected with the door framework and the door outer frame through the metal reinforcing assembly, so that the defect that the plastic fixing piece is prone to deformation under high temperature, causes poor sealing effect of the door body, and is prone to aging and fracture, resulting in unfirm installation of the door body and poor reliability can be overcome. The connection between the door framework and the door outer frame of the door body of the cooking appliance is more firm and reliable.

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, specifically to a door of a cooking appliance and the cooking appliance itself. Background Technology

[0002] Steam ovens, ovens, and microwave ovens generally consist of a door and a cooking cavity. The door seals the cooking cavity to prevent heat and moisture from escaping.

[0003] Traditional doors typically consist of an outer frame and a metal door skeleton within it. The outer frame is usually made of plastic and is fixed to the door skeleton using plastic fasteners. On one hand, the plastic outer frame and fasteners are prone to deformation at high temperatures, resulting in poor door sealing. On the other hand, the plastic fasteners are susceptible to aging and breakage, and the door installation is often unstable, leading to poor reliability. Summary of the Invention

[0004] In view of this, the present invention provides a door for a cooking appliance and a cooking appliance to solve the problems of poor sealing effect, unstable installation, and poor reliability of traditional doors.

[0005] In a first aspect, the present invention provides a door of a cooking appliance, comprising: an outer door frame; a door skeleton fixedly disposed inside the outer door frame; and a metal reinforcing component having a first connecting surface and a second connecting surface, wherein the first connecting surface is fixedly connected to the door skeleton and the second connecting surface is fixedly connected to the outer door frame.

[0006] Beneficial Effects: The door of the cooking appliance of the present invention mainly includes an outer door frame, a door skeleton disposed within the outer door frame, and a metal reinforcing component connecting the outer door frame and the door skeleton. Since the reinforcing component is made of metal, it has the advantages of high strength, resistance to breakage, and high reliability. By simultaneously fixing the metal reinforcing component to both the door skeleton and the outer door frame, it overcomes the shortcomings of related technologies that use plastic fasteners to connect the outer door frame and the door skeleton. These plastic fasteners are prone to deformation at high temperatures, resulting in poor door sealing and a risk of aging and breakage, leading to unstable door installation and poor reliability. In this embodiment, the connection between the door skeleton and the outer door frame of the cooking appliance door is more robust and reliable.

[0007] In one alternative embodiment, the door frame has circumferentially distributed outer sidewalls, and the second connecting surface is fixedly connected to the outer sidewalls.

[0008] Beneficial effects: With this setup, the supporting force of the metal reinforcement components can be directly applied to the outer wall, effectively preventing the plastic outer wall from deforming at high temperatures and affecting the door's sealing performance.

[0009] In one optional embodiment, the metal reinforcement assembly includes an upper fixed bracket, a lower fixed bracket, a left fixed bracket, and a right fixed bracket. The upper fixed bracket, the lower fixed bracket, the left fixed bracket, and the right fixed bracket are distributed circumferentially along the door frame. Each of the upper fixed bracket, the lower fixed bracket, the left fixed bracket, and the right fixed bracket has a first connecting surface facing the door frame and a second connecting surface facing the outer wall of the adjacent door frame. A limiting groove and a slot are provided on the second connecting surface. A limiting buckle and an L-shaped buckle are respectively provided on the four sides of the outer wall. The limiting buckle is adapted to be inserted into the limiting groove, and the L-shaped buckle is adapted to be inserted into the slot.

[0010] Beneficial effects: This configuration, with the upper, lower, left, and right fixed supports interconnected, makes the reinforcement assembly more robust. The limiting buckle on the outer wall inserts into the limiting groove, which prevents the outer wall of the outer frame from deforming in the left-right direction at high temperatures. The L-shaped buckle can be inserted into the slot, preventing the outer wall from arching or deforming in the up-down direction at high temperatures. Therefore, the metal reinforcement assembly of this embodiment can prevent the outer frame from deforming in both the left-right and up-down directions, thus preventing any impact on the door's sealing performance.

[0011] In one alternative implementation, the door further includes:

[0012] The front panel is located on the side of the metal reinforcement assembly away from the door frame;

[0013] The first fixing piece is disposed on the front panel of the door and located on the side of the front panel close to the metal reinforcement component. The first fixing piece is provided with a buckle structure extending toward the metal reinforcement component. The left fixing bracket and / or the right fixing bracket are provided with a first insertion hole suitable for engaging with the buckle structure of the first fixing piece.

[0014] The second fixing piece is disposed on the side of the front panel near the metal reinforcement component. The second fixing piece is provided with a connecting piece extending toward the metal reinforcement component. The lower fixing bracket is provided with a second insertion hole suitable for accommodating the connecting piece. A first connecting hole is provided on one side wall of the second insertion hole. The connecting piece of the second fixing piece is correspondingly provided with a second connecting hole. The first connecting hole is suitable for fasteners to pass through and connect to the first connecting hole.

[0015] Beneficial effects:

[0016] With this configuration, the first fixing piece can engage with the first socket, thereby pre-positioning the front panel and the metal reinforcement assembly. The second fixing piece can be threaded into the wall of the second socket, thereby reliably positioning the front panel on the metal reinforcement assembly. Preferably, the snap-fit ​​portion of the snap-fit ​​structure is located on the lower side of the snap-fit ​​structure. After the snap-fit ​​structure of the first fixing piece is inserted into the first socket, the snap-fit ​​structure can move downward under external force or gravity and rest on the lower wall of the first socket. At the same time, the snap-fit ​​portion of the snap-fit ​​structure can be located on the rear side of the wall of the first socket, thereby hooking onto the metal reinforcement assembly below the first socket, thus limiting the snap-fit ​​structure in the front-rear direction. After the connecting piece of the second fixing piece is inserted into the second socket, the operator can connect the wall of the second socket to the connecting piece of the second fixing piece by fastening a fastener through the first and second connecting holes.

[0017] Preferably, both the snap-fit ​​structure and the connecting piece are T-shaped snap-fits. In the first fixing piece, the T-shaped snap-fit ​​is configured such that the snap-fit ​​portion on one side extends downward and can rest on the lower wall of the first insertion hole. In the second fixing piece, the T-shaped snap-fit ​​is configured such that the portion connected to the main body of the second fixing piece extends horizontally, serving as a connecting piece and making surface contact with the wall of the second insertion hole. Therefore, in this embodiment, the first fixing piece and the second fixing piece can be manufactured using the same process, which helps to reduce the manufacturing cost of the first fixing piece and the second fixing piece.

[0018] In one optional embodiment, the cooking appliance includes a front panel and a cooking cavity, the front panel having a first opening communicating with the cooking cavity, and the door further comprising:

[0019] The first sealing ring, which is disposed on the outer frame and / or the door frame and is located on the side of the outer frame and the door frame away from the metal reinforcement components, is adapted to seal the gap between the cavity front panel and the door body when the door is closed.

[0020] Beneficial effect: The first sealing ring is used to seal the gap between the front panel of the cavity and the door, preventing water vapor in the cavity from leaking out.

[0021] In one alternative embodiment, the first sealing ring includes:

[0022] The mounting section is fixedly connected to the outer frame of the door.

[0023] The sealing part is connected to the mounting part and protrudes from the mounting part in the direction close to the front plate of the cavity. The sealing part is provided with at least one first rib. The first rib is spaced apart from the free end of the sealing part. When the door is closed, the first rib and the free end are both interference fit with the front plate of the cavity.

[0024] Beneficial effects: When the door is closed, the first rib and the free end of the sealing part can work together with the front plate of the cavity to achieve multiple seals between the door and the front plate of the cavity, resulting in a good sealing effect.

[0025] In one alternative embodiment, the outer frame of the door is adapted to cover one side of the front panel of the cavity to form a second opening. The outer frame of the door also includes a T-shaped protrusion at the edge of the second opening. A first mounting groove is formed on the mounting part of the first sealing ring, and the T-shaped protrusion is engaged in the first mounting groove. An insert is provided on the T-shaped protrusion, and an insertion hole is provided on the mounting part, and the insert is inserted into the insertion hole.

[0026] Beneficial effects: With this configuration, the first sealing ring can be fixed on the T-shaped protrusion through the first mounting groove, and the insert block is inserted into the insertion hole of the first sealing ring, making the connection between the first sealing ring and the T-shaped protrusion more secure.

[0027] In one alternative implementation, the door further includes:

[0028] The second sealing ring is located between the outer frame of the door and the front panel of the door, and is suitable for sealing the gap between the outer frame of the door and the front panel of the door.

[0029] Beneficial effects:

[0030] With this design, even if the outer frame of the door deforms due to high temperature, causing a gap to form between the outer frame and the front panel, the second sealing ring can seal the gap, preventing moisture from entering the door and affecting its normal use.

[0031] In one alternative embodiment, the door body further includes a door hinge, the door hinge including a connecting part and a hinged part, a second mounting groove extending in a vertical direction is provided on the left fixed bracket and / or the right fixed bracket, the connecting part is fixedly disposed in the second mounting groove, and a second rib protruding toward the center of the second mounting groove is formed on the groove wall of the second mounting groove, the second rib being adapted to abut against the connecting part.

[0032] Beneficial effects: Generally speaking, in order to prevent the door hinge from loosening and making abnormal noise, the gap between the door hinge and the second mounting groove is very small. This makes it difficult to push the door hinge into the second mounting groove when the door hinge or the second mounting groove is deformed. In this embodiment, a second rib is provided on the groove wall of the mounting groove, which can reduce the contact area between the door hinge and the groove wall of the second mounting groove, reduce friction, and make the installation of the door hinge easier.

[0033] Secondly, the present invention also provides a cooking appliance, including the door of the cooking appliance involved in the first aspect of the present invention.

[0034] Beneficial effects: The cooking appliance of the second aspect of the present invention includes or uses the door of the cooking appliance of the first aspect of the present invention, and therefore has its beneficial effects, namely: it can overcome the defects of the related technology in which plastic fasteners are used to connect the outer frame of the door to the door frame, which makes the plastic fasteners easy to deform at high temperatures, resulting in poor door sealing effect and easy aging and breakage, leading to unstable door installation and poor reliability. The connection between the door frame and the outer frame of the door is more solid and has higher reliability. Attached Figure Description

[0035] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0036] Figure 1 This is a perspective view of the door of the cooking appliance according to an embodiment of the present invention;

[0037] Figure 2 This is an exploded view of the door of the cooking appliance according to an embodiment of the present invention;

[0038] Figure 3 This is an exploded view of the door of the cooking appliance according to an embodiment of the present invention from another angle;

[0039] Figure 4 for Figure 3 Enlarged view of point A in the image;

[0040] Figure 5 The outer frame of the door of the cooking appliance according to an embodiment of the present invention and the first sealing ring;

[0041] Figure 6 for Figure 5 Enlarged view of point B in the image;

[0042] Figure 7 This is a perspective view of the door frame and metal reinforcement components of the cooking appliance according to an embodiment of the present invention in their assembled state.

[0043] Figure 8 for Figure 7 Enlarged view of point C in the image;

[0044] Figure 9 This is a cross-sectional view of the door of the cooking appliance according to an embodiment of the present invention;

[0045] Figure 10 for Figure 9 Enlarged view of point D in the image;

[0046] Figure 11 This is a perspective view of the assembled state of the metal reinforcement components of the door and the front panel of the cooking appliance according to an embodiment of the present invention.

[0047] Figure 12 for Figure 11 Enlarged view of point E in the image;

[0048] Figure 13 for Figure 11 Enlarged view of point F in the image;

[0049] Figure 14 This is a cross-sectional view of the door of the cooking appliance according to an embodiment of the present invention;

[0050] Figure 15 for Figure 14 Enlarged view of point G in the image;

[0051] Figure 16 The left fixed bracket and door hinge of the cooking appliance in this embodiment of the invention;

[0052] Figure 17 The front panel and door of the cooking appliance according to an embodiment of the present invention.

[0053] Explanation of reference numerals in the attached figures:

[0054] 1. Door outer frame; 101. Outer wall; 1011. Limiting buckle; 1012. L-shaped buckle; 102. T-shaped protruding edge; 1021. Insert block;

[0055] 2. Door frame;

[0056] 3. Metal reinforcement components; 301. First connecting surface; 302. Second connecting surface; 3021. Limiting groove; 3022. Slot; 303. Upper fixing bracket; 304. Lower fixing bracket; 305. Left fixing bracket; 306. Right fixing bracket; 307. First insertion hole; 308. Second insertion hole; 3081. First connecting hole; 309. Second mounting groove; 3091. Second protruding rib;

[0057] 401. First fixing piece; 402. Second fixing piece; 403. Snap-fit ​​structure; 404. Connecting piece; 4041. Second connecting hole;

[0058] 5. First sealing ring; 501. Mounting part; 5012. Insertion hole; 5013. First mounting groove; 502. Sealing part; 5021. First rib; 5022. Free end; 5023. First upright part; 5024. Second upright part;

[0059] 6. Door front panel; 601. Door handle;

[0060] 7. Second sealing ring;

[0061] 8. Door hinge; 801. Connecting part; 802. Hinge part;

[0062] 9. Cavity front plate; 901. First opening. Detailed Implementation

[0063] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0064] The following is combined Figures 1 to 17 The following describes embodiments of the present invention.

[0065] According to embodiments of the present invention, in one aspect, a door for a cooking appliance is provided, such as... Figure 1 and Figure 2 As shown, the door includes an outer frame 1, a door skeleton 2, and a metal reinforcing assembly. The door skeleton 2 is fixedly installed inside the outer frame 1. The metal reinforcing assembly has a first connecting surface 301 and a second connecting surface 302. The first connecting surface 301 is fixedly connected to the door skeleton 2, and the second connecting surface 302 is fixedly connected to the outer frame 1.

[0066] The door of the cooking appliance of the present invention mainly includes an outer door frame 1, a door frame 2 disposed within the outer door frame 1, and a metal reinforcing component connecting the outer door frame 1 and the door frame 2. Since the reinforcing component is made of metal, it has the advantages of high strength, resistance to breakage, and high reliability. By simultaneously fixing the metal reinforcing component to both the door frame 2 and the outer door frame 1, it overcomes the shortcomings of related technologies that use plastic fasteners to connect the outer door frame 1 and the door frame 2. These plastic fasteners are prone to deformation at high temperatures, resulting in poor door sealing and a risk of aging and breakage, leading to unstable door installation and poor reliability. In this embodiment, the connection between the door frame 2 and the outer door frame 1 of the cooking appliance door is more robust and reliable.

[0067] Optionally, the door frame 1 is made of metal or plastic.

[0068] In one embodiment, such as Figure 3 As shown, the outer frame 1 of the door has an outer wall 101 distributed circumferentially, and the second connecting surface 302 is fixedly connected to the outer wall 101.

[0069] With this configuration, the supporting force of the metal reinforcement components can be directly applied to the outer wall 101, which can effectively prevent the plastic outer wall 101 from deforming at high temperatures and affecting the sealing performance of the door.

[0070] As an alternative implementation, the second connecting surface 302 is fixedly connected to the side of the door frame 2 near the metal reinforcement component.

[0071] In one embodiment, the metal reinforcement assembly includes an upper fixing bracket 303, a lower fixing bracket 304, a left fixing bracket 305, and a right fixing bracket 306. The upper fixing bracket 303, lower fixing bracket 304, left fixing bracket 305, and right fixing bracket 306 are distributed circumferentially along the door frame 2. Each of these brackets has a first connecting surface 301 facing the door frame 2 and a second connecting surface 302 facing the outer wall 101 of the door outer frame 1. Figure 7 and Figure 8 As shown, a limiting groove 3021 and a slot 3022 are provided on the second connecting surface 302. A limiting buckle 1011 and an L-shaped buckle 1012 are respectively provided on the four sides of the outer wall 101. The limiting buckle 1011 is suitable for being inserted into the limiting groove 3021, and the L-shaped buckle 1012 is suitable for being inserted into the slot 3022.

[0072] With this arrangement, the upper fixed bracket 303, lower fixed bracket 304, left fixed bracket 305, and right fixed bracket 306 are interconnected, making the overall reinforcement assembly more robust. The limiting buckle 1011 of the outer wall 101 is inserted into the limiting groove 3021, which prevents the outer wall 101 of the outer frame from deforming in the left-right direction at high temperatures. The L-shaped buckle 1012 can be inserted into the slot 3022, preventing the outer wall 101 from arching in the up-down direction at high temperatures. Preferably, the L-shaped buckle 1012 is configured to include a vertical section connected to the outer wall 101 of the door frame 1 and a horizontal section connected to the vertical section. The horizontal section is suitable for insertion into the slot 3022, thereby preventing the door frame 1 from deforming in the up-down direction. Therefore, the metal reinforcement assembly of this embodiment can prevent the door frame 1 from deforming in both the left-right and up-down directions, thus preventing any impact on the door's sealing performance.

[0073] As an alternative implementation, a limit buckle 1011 and an L-shaped buckle 1012 are provided on the second connecting surface 302. Limit grooves 3021 and slots 3022 are respectively provided on the four sides of the outer wall 101.

[0074] As another alternative implementation, the second connecting surface 302 is detachably connected to the outer wall 101 via a riveting structure or a threaded connection structure.

[0075] In one embodiment, such as Figures 11 to 13As shown, the door also includes a front panel 6, a first fixing piece 401, and a second fixing piece 402. The front panel 6 is located on the side of the metal reinforcing assembly away from the door frame 2. The first fixing piece 401 is located on the front panel 6, on the side of the front panel 6 closest to the metal reinforcing assembly. The first fixing piece 401 has a snap-fit ​​structure 403 extending toward the metal reinforcing assembly. The left fixing bracket 305 and / or the right fixing bracket 306 have first insertion holes 307 adapted to engage with the snap-fit ​​structure 403 of the first fixing piece 401. Preferably, a door handle 601 is provided on the side of the front panel 6 away from the outer frame, allowing the user to grip the door handle 601 and apply force to the door to open or close the cooking cavity of the cooking appliance.

[0076] The second fixing piece 402 is disposed on the side of the front panel 6 near the metal reinforcement component. The second fixing piece 402 has a snap-fit ​​structure 403 extending toward the metal reinforcement component. The lower fixing bracket 304 has a second insertion hole 308 that engages with the snap-fit ​​structure 403 of the second fixing piece 402. Figure 4 As shown, a first connecting hole 3081 is provided on one side wall of the second insertion hole 308. A corresponding second connecting hole 4031 is provided on the snap-fit ​​structure 403 of the second fixing piece 402. The first connecting hole 3081 is adapted to allow fasteners to pass through and connect to the first connecting hole 3081.

[0077] With this configuration, the first fixing piece 401 can engage with the first insertion hole 307, thereby pre-positioning the front door panel 6 and the metal reinforcement assembly. The second fixing piece 402 can be threadedly connected to the wall of the second insertion hole 308, thereby reliably positioning the front door panel 6 on the metal reinforcement assembly. Preferably, the snap-fit ​​portion of the snap-fit ​​structure 403 is located on the lower side of the snap-fit ​​structure 403. After the snap-fit ​​structure 403 of the first fixing piece 401 is inserted into the first insertion hole 307, the snap-fit ​​structure 403 can move downward under the action of external force or gravity and rest on the lower side wall of the first insertion hole 307. At the same time, the snap-fit ​​portion of the snap-fit ​​structure 403 can be located on the rear side of the wall of the first insertion hole 307, thereby hooking onto the metal reinforcement assembly below the first insertion hole 307, thereby limiting the snap-fit ​​structure 403 in the front-rear direction. After the connecting piece 404 of the second fixing piece 402 is inserted into the second socket 308, the operator can connect the wall of the second socket 308 to the connecting piece 404 of the second fixing piece 402 by passing fasteners through the first connecting hole 3081 and the second connecting hole 4031.

[0078] Among them, fasteners are preferably, but not limited to, screws or rivets.

[0079] Preferably, both the snap-fit ​​structure 403 and the connecting piece 404 are T-shaped snap-fits. In the first fixing piece 401, the T-shaped snap-fit ​​is configured such that the snap-fit ​​portion on one side extends downward and can rest on the lower wall of the first insertion hole 307. In the second fixing piece 402, the T-shaped snap-fit ​​is configured such that the portion connected to the main body of the second fixing piece 402 extends horizontally and can serve as a connecting piece 404, making surface contact with the wall of the second insertion hole 308. Therefore, in this embodiment, the first fixing piece 401 and the second fixing piece 402 can be manufactured using the same process, which helps to reduce the manufacturing cost of the first fixing piece 401 and the second fixing piece 402.

[0080] The assembly process of the front door panel 6 is described below: First, fix the front door panel 6 to the first fixing piece 401 and the second fixing piece 402. Then, insert the snap-fit ​​structures 403 of the front door panel 6 and the first and second fixing pieces 402 into the first insertion hole 307 and the second insertion hole 308, respectively. Next, move the front door panel 6 downward so that the snap-fit ​​structure 403 of the first fixing piece 401 rests on the lower edge of the first insertion hole 307. Finally, use fasteners to fix the snap-fit ​​structure 403 of the second fixing piece 402 to the wall of the second insertion hole 308. With this setup, the installation of the front door panel 6 only requires one screw to reliably install the front door panel onto the metal reinforcement assembly, making the installation process simple and efficient.

[0081] In one embodiment, the door body further includes an inner door panel located between the front door panel and the door frame 2. A receiving groove is provided in the middle of the metal reinforcement component, and the inner door panel is confined within the receiving groove. The inner door panel not only supports the metal reinforcement component to prevent displacement and deformation between the upper fixed bracket 303, lower fixed bracket 304, left fixed bracket 305, and right fixed bracket 306, but also helps to enhance the overall structural strength of the door body.

[0082] In one embodiment, the cooking appliance includes a front panel 9 and a cooking cavity. A first opening 901 is formed on the front panel 9. The first opening 901 communicates with the cooking cavity, and the door also includes a first sealing ring 5. The first sealing ring 5 is disposed on the outer door frame 1 and / or the door frame 2, and is located on the side of the outer door frame 1 and the door frame 2 away from the metal reinforcing components, adapted to seal the gap between the front panel 9 and the door when the door is closed. The first sealing ring 5 is used to seal the gap between the front panel 9 and the door to prevent moisture leakage from the cavity.

[0083] In one embodiment, such as Figure 9 and Figure 10As shown, the first sealing ring 5 includes a mounting portion 501 and a sealing portion 502. The mounting portion 501 is fixedly connected to the outer door frame 1. The sealing portion 502 is connected to the mounting portion 501 and protrudes from the mounting portion 501 towards the front panel 9 of the cavity. At least one first rib 5021 is provided on the sealing portion 502. The first rib 5021 and the free end 5022 of the sealing portion 502 are spaced apart. When the door is closed, both the first rib 5021 and the free end 5022 are interference-fitted with the front panel 9 of the cavity.

[0084] The sealing part 502 includes at least one first rib 5021 formed thereon. When the door is closed, the first rib 5021 and the free end 5022 of the sealing part 502 can be press-fitted with the front panel 9 of the cavity to provide multiple seals between the door and the front panel 9 of the cavity, resulting in a good sealing effect. The number of first ribs 5021 is preferably, but not limited to, one, two, three or more. For example, in this embodiment, there are two first ribs 5021. When the door is closed, the free end 5022 of the sealing part 502 and the two first ribs 5021 are press-fitted with the front panel 9 of the cavity, forming a triple seal between the door and the front panel 9 of the cavity.

[0085] In one embodiment, such as Figure 14 and Figure 15 As shown, the sealing portion 502 of the first sealing ring 5 includes a first raised portion 5023 and a second raised portion 5024. The first raised portion 5023 extends from the mounting portion 501 toward the front plate 9 of the cavity. The second raised portion 5024 is connected to the end of the first raised portion 5023 away from the sealing portion 502. An angle is formed between the extending direction of the first raised portion 5023 and the extending direction of the second raised portion 5024. Along a direction away from the first raised portion 5023, the second raised portion 5024 extends toward the center of the first opening 901, and a first rib 5021 is formed on the second raised portion 5024.

[0086] With this configuration, the second upright portion 5024 at the upper end of the sealing portion 502 can tilt downwards, thereby guiding water downwards to prevent water accumulation in the first sealing ring 5. Furthermore, the first sealing ring 5 is configured to include a first upright portion 5023 and a second upright portion 5024, with an angle formed between the extending directions of the first upright portion 5023 and the second upright portion 5024. When the door is closed, the sealing portion 502 can bend along the connection between the first upright portion 5023 and the second upright portion 5024, thereby applying pressure towards the front panel 9 of the cavity, which helps to further improve the sealing effect of the door.

[0087] As an alternative implementation, the sealing portion 502 extends toward the direction of approaching the front plate 9 of the cavity, and an abutment surface is formed at one end of the sealing portion 502 near the front plate 9 of the cavity, and a first rib 5021 is formed on the abutment surface.

[0088] In one embodiment, such as Figure 5 and Figure 6 As shown, the outer frame 1 is adapted to cover one side of the front panel 9 of the cavity to form a second opening. The outer frame 1 also includes a T-shaped protrusion at the edge of the second opening. A first mounting groove 5013 is formed on the mounting part 501 of the first sealing ring 5. The T-shaped protrusion is engaged in the first mounting groove 5013. An insert 1021 is provided on the T-shaped protrusion. An insertion hole 5012 is provided on the mounting part 501. The insert 1021 is inserted into the insertion hole 5012.

[0089] With this configuration, the first sealing ring 5 can be fixed on the T-shaped protrusion through the first mounting groove 5013, and the insert block 1021 is inserted into the insertion hole 5012 of the first sealing ring 5, making the connection between the first sealing ring 5 and the T-shaped protrusion more secure.

[0090] As an alternative implementation, the mounting part 501 is provided with a plug 1021, and the T-shaped protrusion 102 is provided with a socket 5012.

[0091] In one embodiment, the mounting portion 501 is at least partially sandwiched between the limiting protrusion and the door frame 2. At least one rib is formed on the side of the mounting portion 501 closest to the door frame 2. The rib is interference-fitted with the door frame 2.

[0092] With this configuration, the mounting portion 501 of the first sealing ring 5 can seal the gap between the door frame 2 and the outer frame to prevent moisture from entering the door body through the gap. On this basis, the second rib 3091 can be interference-fitted with the door frame 2 and form multiple seals between the door frame 2 and the outer frame, resulting in a good sealing effect.

[0093] In one embodiment, the door further includes a second sealing ring 7. The second sealing ring 7 is disposed between the outer door frame 1 and the front door panel 6, and is adapted to seal the gap between the outer door frame 1 and the front door panel 6.

[0094] With this design, even if the outer frame 1 deforms due to high temperature, causing a gap to form between the outer frame 1 and the front panel 6, the second sealing ring 7 can seal the gap, preventing moisture from entering the door and affecting its normal use.

[0095] In a preferred embodiment, the second sealing ring 7 has an exposed edge that extends beyond the outer frame and the front panel 6. This exposed edge wraps around the outer perimeter of the outer frame. Along the direction away from the front panel 6, the side of the exposed edge furthest from the outer frame forms a first surface and a second surface. The first surface extends from the front panel towards the outer frame, gradually approaching the outer frame along the direction away from the front panel 6. The second surface connects to the first surface and extends to the outer frame, with a rounded transition. This arrangement allows the second sealing ring 7 to fit more snugly and contributes to improving the aesthetics of the cooking appliance.

[0096] In one embodiment, such as Figure 16 and Figure 17 As shown, the door body includes a door hinge 8. The door hinge 8 includes a connecting part 801 and a hinge part 802. A second mounting groove 309 extending in the vertical direction is provided on the left fixed bracket 305 and / or the right fixed bracket 306. The connecting part 801 is fixedly disposed in the second mounting groove 309. A second rib 3091 protruding toward the center of the second mounting groove 309 is formed on the groove wall of the second mounting groove 309. The second rib 3091 is adapted to abut against the connecting part 801.

[0097] Generally, to prevent the door hinge 8 from loosening and making abnormal noise, the gap between the door hinge 8 and the second mounting groove 309 is very small. This makes it difficult for the door hinge 8 to be pushed into the second mounting groove 309 when the door hinge 8 or the second mounting groove 309 is deformed. In this embodiment, a second rib 3091 is provided on the groove wall of the first mounting groove 5013, which can reduce the contact area between the door hinge 8 and the groove wall of the second mounting groove 309, reduce friction, and make the installation of the door hinge 8 easier.

[0098] Preferably, the cooking appliance further includes a housing, a front panel 9 of which is formed, and a hinge portion 802 of a door hinge 8 is hinged to the housing. The door hinge 8 is used to hinge the door and the housing.

[0099] According to an embodiment of the present invention, in another aspect, a cooking appliance is also provided, including a door as provided in the first aspect of the present invention. This cooking appliance is preferably, but not limited to, an oven, a steam oven, or a microwave oven, etc., and a heating mechanism is also provided inside or outside the cooking cavity. When the cooking appliance is an oven, its heating mechanism is often selected as a baking lamp located inside the cooking cavity. When the cooking appliance is a steam oven, the heating mechanism is usually selected as a steam generating system connected to the cooking cavity.

[0100] The cooking appliance of the second aspect of the present invention includes or uses the door of the cooking appliance of the first aspect of the present invention, and therefore has the following beneficial effects: it can overcome the defects of the related art in which plastic fasteners are used to connect the outer frame 1 and the door frame 2, which makes the plastic fasteners prone to deformation at high temperatures, resulting in poor door sealing effect and easy aging and breakage, leading to unstable door installation and poor reliability. The connection between the door frame 2 and the outer frame 1 of the door body is more solid and has higher reliability.

[0101] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A door of a cooking appliance, characterized in that, include: Door frame (1); The door frame (2) is fixedly installed inside the door outer frame (1); The metal reinforcement component has a first connecting surface (301) and a second connecting surface (302), the first connecting surface (301) being fixedly connected to the door frame (2), and the second connecting surface (302) being fixedly connected to the door outer frame (1); The door frame (1) has circumferentially distributed outer sidewalls (101), and the second connecting surface (302) is fixedly connected to the outer sidewalls (101); The metal reinforcement assembly includes an upper fixing bracket (303), a lower fixing bracket (304), a left fixing bracket (305), and a right fixing bracket (306). The upper fixing bracket (303), lower fixing bracket (304), left fixing bracket (305), and right fixing bracket (306) are distributed circumferentially along the door frame (2). Each of the upper fixing bracket (303), lower fixing bracket (304), left fixing bracket (305), and right fixing bracket (306) has a first fixing bracket facing the door frame (2). The connecting surface (301) and the second connecting surface (302) facing the outer wall (101) of the door frame (1) are provided with a limiting groove (3021) and a slot (3022). A limiting buckle (1011) and an L-shaped buckle (1012) are respectively provided on the four sides of the outer wall (101). The limiting buckle (1011) is suitable for being inserted into the limiting groove (3021), and the L-shaped buckle (1012) is suitable for being inserted into the slot (3022).

2. The door body according to claim 1, characterized in that, Also includes: A front panel (6) is provided on the side of the metal reinforcement assembly away from the door frame (2); A first fixing piece (401) is disposed on the front panel (6) and located on the side of the front panel (6) close to the metal reinforcement component. The first fixing piece (401) is provided with a snap-fit ​​structure (403) extending toward the metal reinforcement component. The left fixing bracket (305) and / or the right fixing bracket (306) are provided with a first insertion hole (307) adapted to engage with the snap-fit ​​structure (403) of the first fixing piece (401). The second fixing piece (402) is disposed on the side of the front panel (6) near the metal reinforcement component. The second fixing piece (402) is provided with a connecting piece (404) extending toward the metal reinforcement component. The lower fixing bracket (304) is provided with a second insertion hole (308) suitable for accommodating the connecting piece (404). A first connecting hole (3081) is provided on one side wall of the second insertion hole (308). A second connecting hole (4031) is correspondingly provided on the connecting piece (404) of the second fixing piece (402). The first connecting hole (3081) is suitable for fasteners to pass through and connect to the first connecting hole (3081).

3. The door body according to any one of claims 1 to 2, characterized in that, The cooking appliance includes a front panel (9) and a cooking cavity. A first opening (901) is formed on the front panel (9), and the first opening (901) communicates with the cooking cavity. The door also includes: A first sealing ring (5) is disposed on the outer frame (1) and / or the door frame (2) and located on the side of the outer frame (1) and the door frame (2) away from the metal reinforcement assembly, and is adapted to seal the gap between the cavity front plate (9) and the door body when the door is closed.

4. The door body according to claim 3, characterized in that, The first sealing ring (5) includes: Mounting part (501), which is fixedly connected to the door outer frame (1); A sealing part (502) is connected to the mounting part (501) and protrudes from the mounting part (501) toward the cavity front plate (9). The sealing part (502) is provided with at least one first rib (5021). The first rib (5021) is spaced apart from the free end (5022) of the sealing part (502). When the door is closed, the first rib (5021) and the free end (5022) are both interference-fitted with the cavity front plate (9).

5. The door body according to claim 4, characterized in that, The outer frame (1) is adapted to cover one side of the front panel (9) of the cavity to form a second opening. The outer frame (1) also includes a T-shaped protrusion at the edge of the second opening. A first mounting groove (5013) is formed on the mounting part (501) of the first sealing ring (5). The T-shaped protrusion is engaged in the first mounting groove (5013). A plug (1021) is provided on the T-shaped protrusion. A plug hole (5012) is provided on the mounting part (501). The plug (1021) is inserted into the plug hole (5012).

6. The door body according to claim 2, characterized in that, The door also includes: The second sealing ring (7) is disposed between the outer frame (1) and the front panel (6) of the door, and is suitable for sealing the gap between the outer frame (1) and the front panel (6).

7. The door body according to claim 1 or 2, characterized in that, It also includes a door hinge (8), which includes a connecting part (801) and a hinge part (802). The left fixed bracket (305) and / or the right fixed bracket (306) are provided with a second mounting groove (309) extending in the vertical direction. The connecting part (801) is fixedly disposed in the second mounting groove (309). A second rib (3091) is formed on the groove wall of the second mounting groove (309) and protrudes toward the middle of the second mounting groove (309). The second rib (3091) is adapted to abut against the connecting part (801).

8. A cooking appliance, characterized in that, Includes the door of the cooking appliance as described in any one of claims 1 to 7.

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