Door assembly for cooking apparatus and cooking apparatus

Abstract

The application provides a door body assembly for a cooking device and a cooking device, and relates to the technical field of cooking devices, and aims to solve the technical problem of high production cost of the existing door body assembly. The door body assembly comprises a first door body and two hinge support units. The two hinge support units are symmetrically arranged at positions close to edges on both sides of the first door body along the width direction of the first door body. Each hinge support unit comprises a non-metallic support and a metallic support. The non-metallic support and the metallic support are both provided with openings on one side close to each other. The non-metallic support and the metallic support are connected at the openings to jointly form a hinge sliding groove. One side close to the lower end of the door body assembly is provided with an opening. The opening is configured to allow a hinge to extend into or out of the hinge sliding groove. In the application, the proportion of metal in the hinge support unit is reduced, thereby reducing the cost of the door body assembly.

Description

Technical Field

[0001] This application relates to the field of cooking equipment technology, and in particular to a door assembly for a cooking device and the cooking device itself. Background Technology

[0002] Microwave ovens, steam ovens, ovens and other common cooking appliances mostly have a door structure located on one side of the cooking appliance body. The door can be opened or closed by a hinge structure connecting the door and the appliance body.

[0003] Hinges require hinge tracks, and existing hinge tracks are integral metal parts that are set on the surface of the door, which results in higher production costs and heavier weight for the door. Utility Model Content

[0004] In view of the above problems, this application provides a door assembly for a cooking device and a cooking device, aiming to solve the technical problem of high production cost of existing door assemblies.

[0005] To achieve the above objectives, the embodiments of this application provide the following technical solutions:

[0006] This application provides a door assembly for a cooking device. The lower end of the door assembly is hinged to the cooking device. The door assembly includes a first door and two hinge support units. The two hinge support units are symmetrically arranged on both sides of the first door near the edge along the width direction of the first door. Each hinge support unit includes a non-metallic support and a metal support. In the same hinge support unit, the non-metallic support and the metal support have an opening on their adjacent sides. The non-metallic support and the metal support are joined at the opening to jointly form a hinge groove. The hinge groove has an opening on the side near the lower end of the door assembly. The opening is configured to allow the hinge to extend into or out of the hinge groove.

[0007] The door assembly for cooking equipment provided by this utility model reduces the proportion of metal in the hinge groove by setting up a metal bracket and a non-metal bracket together to form a hinge groove, thereby reducing the production cost of the door assembly.

[0008] In some embodiments, in the same hinge bracket unit, the openings of the non-metallic bracket and the openings of the metallic bracket are opposite to each other along the width direction of the first door body and are detachably engaged.

[0009] This reduces the thickness of the door components and facilitates the maintenance and replacement of both non-metallic and metal brackets.

[0010] In some embodiments, the non-metallic bracket has a receiving groove that opens toward one side of the metal bracket; along the thickness direction of the first door body, the metal bracket includes a bracket body, and both ends of the bracket body have bent portions that bend toward one side of the non-metallic bracket.

[0011] When the non-metallic bracket and the metallic bracket are arranged to form the hinge groove, the bent portion is located within the receiving groove.

[0012] In this way, the opposite sidewalls of the receiving groove can limit and guide the bent part, reducing the shaking of the metal bracket in the receiving groove.

[0013] In some embodiments, the bottom wall of the receiving groove has a slot at a position corresponding to the bent portion. When the non-metallic bracket and the metallic bracket together form the hinge slide, the bent portion is inserted into the corresponding slot.

[0014] In this way, after the bent part is inserted into the slot, the slot can position the bent part, further reducing the shaking of the metal bracket in the receiving groove.

[0015] In some embodiments, the corner region where the bend connects to the bracket body has a recessed clearance space toward the side opposite to the non-metallic bracket, the clearance space being configured to avoid the hinge.

[0016] In this way, by setting an avoidance space, the corner formed between the metal bracket body and the bending part can be further away from the bottom wall of the receiving groove, so that the corner will not interfere with the hinge, allowing the hinge to fit closely with the bracket body and the bending part, reducing the wobbling of the hinge in the hinge groove.

[0017] In some embodiments, along the thickness direction of the first door body, the bracket body includes a first connecting segment, a second connecting segment, and a third connecting segment connected in sequence. In the same hinge bracket unit, the first connecting segment and the third connecting segment are respectively connected to the corresponding bending portion, and the second connecting segment protrudes towards the side of the non-metallic bracket, while the first connecting segment and the third connecting segment are recessed towards the side away from the non-metallic bracket. The recesses of the first connecting segment and the third connecting segment relative to the second connecting segment respectively form the clearance space.

[0018] In this way, the distance between the second connecting segment and the bottom wall of the receiving groove is less than the distance between the first or third connecting segment and the bottom wall of the receiving groove. That is, the second connecting segment is closer to the bottom wall of the receiving groove. The second connecting segment constitutes one of the groove walls of the hinge slide. When the hinge is inserted into the hinge slide, even if the height of the hinge in the height direction of the first door body is equal to the distance between the two bends, the hinge can still be smoothly inserted into the hinge slide.

[0019] In some embodiments, the non-metallic bracket is a plastic bracket; and / or, the metallic bracket is a sheet metal bracket.

[0020] In this way, non-metallic brackets can be integrally molded through injection molding, which improves the strength of non-metallic brackets, while metal brackets can be integrally molded through sheet metal, which improves the strength of metal brackets.

[0021] In some embodiments, the door assembly further includes two abutments, which are respectively disposed at the bottom ends of the two non-metallic brackets and connected to the corresponding non-metallic brackets; wherein one abutment corresponds to one non-metallic bracket.

[0022] In this way, when the first door is set vertically, the door assembly is in the closed cooking chamber state. At this time, the stop can provide support for the non-metallic bracket to improve the stability of the non-metallic bracket installed on the first door and reduce the risk of the non-metallic bracket falling off.

[0023] In some embodiments, the abutment is a plastic part, and the abutment and the corresponding non-metallic bracket are an integral structure.

[0024] In this way, the abutment is lighter and less expensive, and the integrated abutment has higher connection strength with the non-metallic bracket, while reducing the number of parts on the door assembly and improving the assembly efficiency of the door assembly.

[0025] In some embodiments, the door assembly further includes a left bracket and a right bracket. Along the width direction of the first door, the left bracket and the right bracket are disposed opposite each other at positions near the two side edges of the first door and are respectively attached to the first door. Both the left bracket and the right bracket have receiving cavities, and the two hinge bracket units are respectively disposed in their corresponding receiving cavities.

[0026] In this way, the left and right brackets can not only provide an installation base for the second door, but also accommodate the hinge bracket unit. The left and right brackets serve a dual purpose. Furthermore, the hinge bracket unit set in the accommodating cavity does not increase the space occupied by the door assembly, making the structure of the door assembly more compact.

[0027] In some embodiments, the door assembly further includes an upper bracket, a second door, and a water guide; the upper bracket is adhered to the back of the first door near the top and extends along the width direction of the first door, and the side of the upper bracket facing away from the first door has a support surface; two abutments are respectively adhered to the back of the first door, and the surface of the abutment facing away from the first door is not higher than the support surface; the water guide is disposed between the two abutments and connected to the two abutments respectively, and the water guide has a limiting groove with an opening on the side facing the upper bracket; the surface of the second door facing the support surface is adhered to the support surface, and the end of the second door near the water guide is inserted into the limiting groove and adhered to the groove wall.

[0028] In this way, the end of the second door body near the water guide can be inserted into the limiting groove on the water guide, and the distance between the side of the abutment away from the first door body and the back of the first door body is smaller than the distance between the second door body and the first door body, thereby reducing the thickness of the abutment in the thickness direction of the equipment body and reducing the space occupied by the abutment in the thickness direction of the equipment body.

[0029] In some embodiments, the groove wall surface of the limiting groove near the first door body, the supporting surface, and the surface of the blocking member on the side away from the first door body are located on the same plane.

[0030] In this way, the abutment can provide support for the second door, increasing the support area for the second door and improving the stability of the second door after it is relatively fixed to the first door.

[0031] In some embodiments, the water guide has connecting portions extending toward one side of the first door body at both ends, and each of the abutments has an abutment extending toward one side of the water guide; when the water guide is installed between two abutments, the connecting portion is located above the abutment, and the connecting portion is detachably connected to the abutment.

[0032] In this way, on the one hand, the blocking part can provide support and limit for the connecting part and the water guide, so that the water guide can better support the second door after the connecting part and the blocking part are connected. On the other hand, it can also make it easier to install and fix the second door. For example, before the connecting part and the blocking part are connected, the second door can be inserted into and glued to the limiting groove of the water guide. Then, the second door and the water guide are treated as a whole, and the relative fixation of the second door and the blocking part is achieved by connecting the connecting part and the blocking part.

[0033] In some embodiments, the door assembly further includes a threaded connector, the abutment having a through hole extending along the height direction of the first door, the connecting portion having a threaded hole that matches the threaded connector, and the threaded connector passing through the through hole and being threadedly connected to the threaded hole.

[0034] In this way, the threaded connector passes through the through hole from bottom to top and is threaded into the threaded hole. This allows the head of the threaded connector to be hidden below the stop part, and the head of the threaded connector is closer to the lower edge of the door assembly, avoiding the head of the threaded connector occupying the space in the middle area of ​​the cooking cavity.

[0035] In some embodiments, the water guide further includes a water guide groove disposed on the side of the limiting groove opposite to the first door body and communicating with the surface of the second door body.

[0036] In this way, the water guide can collect the condensate dripping from the surface of the second door.

[0037] In some embodiments, the door assembly further includes a third door, wherein one of the left and right supports has a stepped surface on the side facing the other; each of the abutments has a first limiting structure extending toward the upper support on the side facing the upper support; the upper support has a second limiting structure extending toward the abutment on the side facing the abutment; the third door is located between the first and second door and on the stepped surface of the left and right supports, and the bottom end of the third door is limited between the stepped surface and the first limiting structure support, and the top end of the third door is limited between the stepped surface and the second limiting structure.

[0038] In this way, the first limiting structure, together with the step surface, can limit the relative two sides of the bottom end of the third door, and the second limiting structure, together with the step surface, can limit the relative two sides of the top end of the third door, thereby achieving the limiting and fixing of the third door at both ends in the height direction of the door assembly, making the installation of the third door more stable.

[0039] In some embodiments, the door assembly further includes a seal located below the upper bracket and wrapped around the outer periphery of the top of the third door, and the second limiting structure is located on the side of the seal opposite to the first door and abuts against the seal.

[0040] In this way, the seal can reduce the shaking of the top end of the third door, improve the sealing between the top end of the third door and the upper bracket, and prevent steam from entering the gap between the first and third doors from the top end of the third door.

[0041] In some embodiments, the abutment has a first limiting surface on the side facing the upper bracket, and the seal has a second limiting surface on the side facing the abutment. Along the height direction of the door assembly, the third door is limited between the first limiting surface and the second limiting surface.

[0042] In this way, the first limiting surface and the second limiting surface can limit the end faces of the third door body at both ends in the height direction of the door body assembly, thereby further improving the stability of the installation of the third door body under the joint limiting of the first limiting surface and the second limiting surface.

[0043] In some embodiments, the first limiting structure is a limiting boss, and the side of the limiting boss facing the step surface has a guide slope, so that the bottom end of the third door body is limited between the limiting boss and the step surface along the guide slope; and / or,

[0044] The second limiting structure is an elastic limiting plate, and the elastic limiting plate has a guide portion that is inclined away from the step surface, so that the top end of the third door body is limited between the step surface and the elastic limiting plate along the guide portion.

[0045] In this way, guided by the inclined guide surface, the bottom end of the third door can be more easily inserted into the gap between the first limiting structure and the step surface. The elastic limiting plate can be manually moved to increase the opening size between the second limiting structure and the step surface, and under the guidance of the guide part, the top end of the third door can easily enter the gap between the second limiting structure and the step surface.

[0046] In some embodiments, there are at least two second limiting structures, arranged sequentially at intervals along the width direction of the first door body.

[0047] In this way, at least two second limiting structures can limit the third door at at least two points, thus improving the limiting effect on the third door.

[0048] A second aspect of this application provides a cooking device, including a device body and a door assembly provided in the first aspect above. The device body has an inner pot, and the front side of the device body has an opening communicating with the inner pot. The door assembly is movably disposed at the opening to open or close the opening.

[0049] In addition to the technical problems solved by the embodiments of this application, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions described above, other technical problems that can be solved by the door assembly for cooking equipment and the cooking equipment provided by the embodiments of this application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further explained in detail in the specific implementation. Attached Figure Description

[0050] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0051] Figure 1 This is a schematic diagram of the connection structure between the door assembly and the hinge provided in an embodiment of this application;

[0052] Figure 2 A schematic diagram of the connection structure between the first door body and the hinge support unit provided in the embodiments of this application;

[0053] Figure 3 for Figure 2 A cross-sectional structural diagram of the hinged support unit;

[0054] Figure 4 for Figure 3 A schematic diagram of the planar structure of the metal support frame;

[0055] Figure 5 Another structural schematic diagram of the door assembly provided in this application;

[0056] Figure 6 Another structural schematic diagram of the door assembly provided in this application;

[0057] Figure 7 for Figure 6 A schematic diagram of the structure of the middle door assembly after being cut along the AA direction;

[0058] Figure 8 for Figure 7 A magnified view of a section at point B in the middle;

[0059] Figure 9 for Figure 8 A structural diagram of the middle gate assembly without the second and third gates installed;

[0060] Figure 10 for Figure 7 A magnified view of a section at point C.

[0061] Explanation of reference numerals in the attached figures:

[0062] 10 - Door assembly; 20 - Hinge;

[0063] 100 - First gate body;

[0064] 200-Hinge bracket unit; 201-Hinge slide; 210-Non-metallic bracket; 211-Accommodation slot; 212-Slot; 220-Metallic bracket; 221-Bracket body; 2211-First connecting section; 2212-Second connecting section; 2213-Third connecting section; 222-Bending part; 223-Allowing space;

[0065] 300 - Blocking component; 310 - Blocking part; 311 - Through hole; 320 - First limiting structure; 321 - Guide slope; 330 - First limiting surface;

[0066] 410 - Left support; 420 - Right support; 430 - Receiving cavity; 440 - Stepped surface;

[0067] 500 - Upper support; 501 - Support surface; 520 - Second limiting structure; 521 - Guide part;

[0068] 600 - Second gate body;

[0069] 700 - Water guide component; 701 - Limiting groove; 710 - Water guide channel; 720 - Connecting part; 721 - Threaded hole;

[0070] 800 - Third gate body;

[0071] 900 - Seal; 910 - Second limiting surface. Detailed Implementation

[0072] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0073] This application provides a cooking device, which includes, but is not limited to, a microwave oven, a steam oven, and an oven. Taking an oven as an example... Figure 1As shown, the cooking appliance includes a main body and a door assembly 10. The main body has an inner liner with a cooking cavity open on one side, which holds food to be cooked. The door assembly 10 is hinged to the open side via a hinge 20 to open or close the cooking cavity. Opening the cooking cavity facilitates the user's loading and unloading of food, while closing it improves cooking results. Since the door assembly 10 is one of the core safety components of the oven, it must also consider sealing, heat preservation, durability, and ease of maintenance.

[0074] In this document, the lower end of the door assembly 10 is hinged to the cooking device to open or close the opening of the cooking cavity. The orientation of each component in the door assembly 10 is described with reference to the orientation of the door assembly 10 in the closed state.

[0075] Please refer to Figures 1 to 10 As shown, in order to facilitate understanding of the technical solution of this application, in this embodiment, the width direction of the door assembly 10 is the X direction, the height direction is the Y direction, and the thickness direction of the door assembly 10 is the Y direction.

[0076] The door assembly 10 for cooking provided in this application includes a first door 100 and two hinge support units 200.

[0077] The first door 100 has a front and a back side disposed opposite to each other, which are two opposing surfaces of the first door 100 along the thickness direction of the door assembly 10. When the door assembly 10 closes the cooking cavity, the front side of the first door 100 can be the side facing away from the cooking cavity, and the back side of the first door 100 can be the side facing the cooking cavity. The first door 100 provides a mounting base for at least some other components in the door assembly 10, such as the hinge bracket unit, so that the other at least some components can be directly or indirectly mounted on the first door 100.

[0078] The thickness direction of the door assembly 10 is the same as that of the first door 100. Two hinge support units 200 are symmetrically arranged on both sides of the first door 100 near the edge, along the width direction of the first door 100. The width direction of the first door 100 is the same as that of the door assembly 10. Specifically, the hinge support units 200 can be located on the back of the first door 100. The hinge support unit 200 is used to connect one end of the hinge 20, and the other end of the hinge 20 is used to connect to the device body, so that the door assembly 10 can rotate relative to the device body through the hinge 20 to open or close the cooking cavity. The hinge support unit 200 can be fixed to the first door 100 by adhesive bonding, thereby reducing the number of openings in the first door 100 and improving the strength and aesthetics of the first door 100.

[0079] It should be noted that, since the existing hinge bracket unit 200 is usually a one-piece molded metal part, the production cost of the door is relatively high and the weight is relatively heavy.

[0080] To address the aforementioned issues, this application provides a door assembly 10, which aims to solve the technical problem of high production costs of existing door assemblies 10.

[0081] The door assembly 10 provided in the embodiments of this application will be further described below with reference to the accompanying drawings, based on the above embodiments.

[0082] Please refer to Figure 2 and Figure 3 Each hinge support unit 200 in this embodiment includes a non-metallic support 210 and a metal support 220. In the same hinge support unit 200, the non-metallic support 210 and the metal support 220 have an opening on their adjacent sides. The non-metallic support 210 and the metal support 220 are joined at the opening to jointly form a hinge groove 201. The side of the hinge groove 201 near the lower end of the door assembly 10 is an opening. The opening is configured to allow the hinge 20 to extend into or out of the hinge groove 201 so that the door assembly 10 can rotate relative to the door assembly to open or close the opening of the cooking cavity.

[0083] By setting up a hinge groove 201 formed by both a metal bracket 220 and a non-metal bracket 210, the metal content in the hinge bracket unit 200 can be reduced, thereby lowering the production cost of the door assembly 10. Simultaneously, using a non-metal bracket 210, which is lighter than the metal bracket 220, also makes the entire hinge bracket unit 200 lighter, further reducing the weight of the door assembly 10. This reduces the force exerted by the door assembly 10 on the hinge 20, thus extending the service life of the hinge 20.

[0084] like Figure 2 and Figure 3 As shown, in the same hinge bracket unit 200, the openings of the non-metallic bracket 210 and the metal bracket 220 are arranged opposite to each other along the width direction of the first door body 100, and the non-metallic bracket 210 and the metal bracket 220 are detachably connected, and the openings of the non-metallic bracket 210 and the metal bracket 220 are detachably joined, which facilitates the subsequent maintenance and replacement of the non-metallic bracket 210 and the metal bracket 220.

[0085] When installing the hinge bracket unit 200, the metal bracket 220 can be pre-fixed to the first door body 100. The end of the hinge 20 that needs to be inserted into the hinge groove 201 is pre-positioned on either the side of the metal bracket 220 facing the non-metallic bracket 210 or the side of the non-metallic bracket 210 facing the metal bracket 220. Then, by fixing the non-metallic bracket 210 to the metal bracket 220, the hinge 200 is simultaneously inserted into it while the hinge groove 201 is being constructed, reducing the installation difficulty of the door assembly 10 and the hinge 20. Furthermore, the non-metallic bracket 210 and the metal bracket 220, which are positioned opposite each other along the width direction of the first door body 100, can be connected along the width direction of the first door body 100, for example, using bolts, thus avoiding interference with the hinge 20 and making the connection or disassembly of the metal bracket 220 and the non-metallic bracket 210 easier.

[0086] like Figure 3 and Figure 4 As shown, the non-metallic bracket 210 has a receiving groove 211 that opens toward the side of the metal bracket 220; along the thickness direction of the first door body 100, the metal bracket 220 includes a bracket body 221, and both ends of the bracket body 221 have bent portions 222 that bend toward the side of the non-metallic bracket 210. For one example, the bent portions 222 can be formed into an integral structure with the bracket body 221 by bending process; for another example, the bent portions 222 can also be formed into an integral structure with the bracket body 221 by bonding, welding, threaded connection or other means; when the non-metallic bracket 210 and the metal bracket 220 surround to form a hinge groove 201, the bent portions 222 are located in the receiving groove 211.

[0087] In this way, the end of the bent portion 222 away from the support body 221 can abut against the bottom wall of the receiving groove 211, reducing the shaking of the metal support 220 in the receiving groove 211; in addition, the wall surface of the bent portion 222 can fit against the side wall of the receiving groove 211 to limit the bent portion 222 in its thickness direction.

[0088] like Figure 3 As shown, the bottom wall of the receiving groove 211 has a slot 212 at the position corresponding to the bent part 222. When the non-metallic bracket 210 and the metal bracket 220 are arranged together to form the hinge slide 201, the bent part 222 is inserted into the corresponding slot 212.

[0089] Along the width direction of the first door body 100, the slot 212 extends in the direction away from the metal bracket 220. The groove outline of the slot 212 is adapted to the outline of the end of the bent part 222 away from the bracket body 221. After the bent part 222 is inserted into the slot 212, the slot 212 can position the bent part 222, further reducing the shaking of the metal bracket 220 in the receiving groove 211, so as to further improve the accuracy of the relative position between the metal bracket 220 and the non-metal bracket 210.

[0090] It should be noted that the corner formed by the bend between the support body 221 and the bent portion 222 of the metal bracket 220 has a certain radius (R), and this radius is an arc rather than a right angle. The arc will occupy part of the internal space of the support groove. The cross-sectional shape of the end of the hinge 20 inserted into the hinge groove 201 is roughly rectangular. This results in the hinge 20 not being able to fit with the direct body and / or the bent portion 222 of the metal bracket 220 at the radius. As a result, the four sides of the end of the hinge 20 inserted into the hinge groove 201 cannot maintain the same gap with the groove wall of the hinge groove 201. This may cause the hinge 20 to wobble when sliding in the hinge groove 201.

[0091] In view of this, in this embodiment, as Figure 3 and Figure 4 As shown, the corner area where the bend 222 connects to the bracket body 221 has a recessed clearance space 223 facing away from the non-metallic bracket 210, and the clearance space 223 is configured to avoid the hinge 20.

[0092] By setting an clearance space 223 to allow the hinge 20 to pass, one end of the hinge 20 inserted into the hinge groove 201 can fit against the bending part 222 and the bracket body 221, thereby reducing the shaking of the hinge 20 in the hinge groove 201 and improving the stability of the connection between the hinge 20 and the hinge bracket unit 200.

[0093] like Figure 4As shown, along the thickness direction of the first door body 100, the bracket body 221 includes a first connecting segment 2211, a second connecting segment 2212, and a third connecting segment 2213 connected in sequence. In the same hinge bracket unit 200, the first connecting segment 2211 and the third connecting segment 2213 are respectively connected to the corresponding bending portion 222, and the second connecting segment 2212 protrudes towards the side of the non-metallic bracket 210, so that the second connecting segment 2212 is closer to the bottom wall of the non-metallic bracket 210. The first connecting segment 2211 and the third connecting segment 2213 are both recessed towards the side away from the non-metallic bracket 210, so that the first connecting segment 2211 and the third connecting segment 2213 are further away from the bottom wall of the non-metallic bracket 210. The first connecting segment 2211 and the third connecting segment 2213 respectively form a clearance space 223 relative to the recess of the second connecting segment 2212. The corner formed at the connection between the bracket body 221 and the bending part 222 is located within the clearance space 223. The hinge 20 is limited by the second connecting section 2212 and the bending part 222 and will not directly contact the corner, so that the hinge 20 can reduce sway by fitting with the second connecting section 2212 and the bending part 222.

[0094] In some embodiments, the non-metallic support 210 can be a plastic support, allowing it to be integrally molded by injection molding, which improves its strength and makes it easy to manufacture and cost-effective. Of course, in other embodiments, the non-metallic support 210 can also be a carbon fiber support.

[0095] In some embodiments, the metal bracket 220 can be a sheet metal bracket, thereby enabling the metal bracket 220 to be integrally formed by sheet metal, providing strength to the metal bracket 220. Of course, in other embodiments, the metal bracket 220 can also be constructed by welding the bent portion 222 to the bracket body 221.

[0096] like Figure 2 As shown, the door assembly 10 also includes two abutments 300, which are respectively disposed at the bottom ends of two non-metallic brackets 210 and connected to the corresponding non-metallic brackets 210; wherein, one abutment 300 corresponds to one non-metallic bracket 210.

[0097] The non-metallic bracket 210 is subject to its own downward gravity. When the first door 100 is vertically positioned, the door assembly 10 is in the closed cooking chamber state. At this time, the gravity of the non-metallic bracket 210 acts on the stop member 300, providing support for the non-metallic bracket 210. This improves the stability of the non-metallic bracket 210 installed on the first door 100 and reduces the risk of the non-metallic bracket 210 separating from the first door 100 under its own weight. In addition, the stop member 300 can also provide an installation base for the water guide member 700.

[0098] The connection methods between the blocking component 300 and the first door body 100 include, but are not limited to, adhesive bonding, bolt connection, or snap-fit.

[0099] In some embodiments, the abutment 300 is a plastic part, and the abutment 300 and the corresponding non-metallic bracket 210 are an integral structure.

[0100] By integrally molding the abutment 300 and the non-metallic bracket 210, and connecting them to the first door body 100, the overall connection strength of the abutment 300 and the non-metallic bracket 210 can be improved. Furthermore, the abutment 300 and the non-metallic bracket 210 are manufactured in a single process, such as by injection molding to directly form a plastic part with the non-metallic bracket 210 and the abutment 300, reducing the number of parts on the door assembly 10 and improving the assembly efficiency of the door assembly 10. Additionally, it also reduces the risk of the abutment 300 detaching from the first door body 100.

[0101] like Figure 5 and Figure 6 As shown, the door assembly 10 also includes a left bracket 410 and a right bracket 420. Along the width direction of the first door 100, the left bracket 410 and the right bracket 420 are positioned opposite each other near the two side edges of the first door 100 and are respectively attached to the first door 100. Both the left bracket 410 and the right bracket 420 have a receiving cavity 430, and two hinge bracket units 200 are respectively disposed in their corresponding receiving cavities 430.

[0102] Both the left bracket 410 and the right bracket 420 are adhered to the back of the first door body 100, thus avoiding the need for holes or grooves in the first door body 100 to connect the left bracket 410 or the right bracket 420. This reduces stress concentration at holes or grooves, resulting in higher strength for the first door body 100. By placing the hinge bracket units 200 within their corresponding receiving cavities 430, the hinge bracket units 200 do not increase the space occupied by the door assembly 10, making the structure of the door assembly 10 more compact. Furthermore, the left bracket 410 and the right bracket 420 can also serve as mounting bases for the second door body 600 and / or the third door body 800, giving the left bracket 410 and the right bracket 420 a dual-purpose function.

[0103] like Figure 5 and Figure 6 As shown, the door assembly 10 also includes an upper bracket 500, a second door 600, and a water guide 700; the upper bracket 500 is adhered to the back of the first door 100 and near the top, and extends along the width direction of the first door 100, with a support surface 501 on the side of the upper bracket 500 away from the first door 100; two abutments 300 are respectively adhered to the back of the first door 100, and the surface of the abutment 300 on the side away from the first door 100 is not higher than the support surface 501; the water guide 700 is disposed between the two abutments 300 and connected to the two abutments 300 respectively, and the water guide 700 has a limiting groove 701 with an opening on the side facing the upper bracket 500; the surface of the second door 600 facing the support surface 501 is adhered to the support surface 501, and the end of the second door 600 near the water guide 700 is inserted into the limiting groove 701 and adhered to the groove wall of the limiting groove 701.

[0104] The top and bottom of the first door body 100 are two opposite positions along the height direction of the door body assembly 10. By using adhesive to fix the upper bracket 500 to the first door body 100, the upper bracket 500 will not cause damage to the first door body 100 such as openings or grooves, avoiding stress concentration at the openings or grooves, and giving the first door body 100 higher strength. The upper bracket 500 extends along the width direction of the first door body 100. It can be that both ends of the upper bracket 500 extend along the width direction of the first door body 100 respectively. The extended upper bracket 500 can provide a larger installation area for the second door body 600 and more optional installation positions for the second limiting structure 520. Furthermore, the two ends of the extension direction of the upper bracket 500 do not exceed the width of the first door body 100, so that the upper bracket 500 can be completely hidden on the back of the first door body 100, avoiding interference of the upper bracket 500 with the opening or closing of the door assembly 10. After the support surface 501 on the upper bracket 500 is bonded to the second door body 600, the top end of the second door body 600 can be fixed on the support surface 501.

[0105] like Figure 6 As shown, the end of the second door 600 closest to the water guide 700 is the bottom end of the second door 600. By inserting the second door 600 into the limiting groove 701, the opposite side walls and bottom of the limiting groove 701 can limit the bottom end of the second door 600. Furthermore, the limiting groove 701 also provides support for the second door 600. After bonding the second door 600 to the groove wall of the limiting groove 701, the stability of the connection between the second door 600 and the water guide 700 is further improved, and the second door 600 is relatively fixed to the first door 100 through the water guide 700 and the upper bracket 500.

[0106] By fixing both ends of the water guide 700 to the two abutment members 300 and setting a limiting groove 701 on the water guide 700, on the one hand, regardless of whether the abutment member 300 is provided with a slot 212, the limiting groove 701 can support and fix the bottom end of the second door 600. On the other hand, the water guide 700 can selectively be spaced apart from or in contact with the first door 100. When the water guide 700 is spaced apart from the first door 100, that is, when the water guide 700 is not in direct contact with the first door 100, the thickness of the water guide 700 in the thickness direction of the first door 100 can be reduced to a certain extent.

[0107] By ensuring that the side surface of the abutment 300 facing away from the first door 100 is not higher than the support surface 501, the second door 600 will not be interfered with by the abutment 300 when the side surface of the second door 600 close to the first door 100 is in contact with the support surface 501. At the same time, the thickness of the abutment 300 is reduced, thereby reducing the space occupied by the position corresponding to the abutment 300 in the thickness direction of the device body and increasing the actual usable space of the cooking cavity.

[0108] The water guide 700 is mainly used to guide the condensate on the second door 600. Specifically, when the door assembly 10 closes the cooking cavity and cooking begins, the temperature of the side of the second door 600 facing away from the first door 100 rises. When the door assembly 10 opens the cooking cavity, the side of the second door 600 facing away from the first door 100 comes into direct contact with the cooler ambient air, causing condensate to form on this side. Under the influence of gravity, the condensate drips towards the bottom of the second door 600. After flowing through the water guide 700, the condensate is guided to a location that facilitates drainage or water collection. For example, the water guide 700 can guide the condensate into the water guide groove 710 on the water guide 700.

[0109] like Figure 9As shown, the groove wall surface of the limiting groove 701 near the first door body 100, the supporting surface 501, and the surface of the abutment 300 facing away from the first door body 100 are all on the same plane. This allows this plane to form the mounting surface of the second door body 600. When the second door body 600 is fixed to the supporting surface 501, it can also simultaneously fit against the groove wall surface of the limiting groove 701 near the first door body 100 and the groove wall surface of the abutment 300 facing away from the first door body 100. This also facilitates the simultaneous bonding and fixing of the second door body 600 to the limiting groove 701, the supporting surface 501, and the abutment 300, thereby improving the relative stability of the second door body 600 and the first door body 100.

[0110] like Figure 7 , Figure 8 and Figure 9 As shown, the water guide 700 has connecting portions 720 extending toward the first door body 100 at both ends, and each abutment 300 has an abutment portion 310 extending toward the water guide 700. When the water guide 700 is installed between two abutments 300, the connecting portion 720 is located above the abutment portion 310, and the connecting portion 720 and the abutment portion 310 are detachably connected.

[0111] By providing the connecting part 720 and the abutting part 310, when the door assembly 10 is in the closed position, the connecting part 720 is located above the abutting part 310. The connecting part 720 is abutted against the abutting part 310 by the downward gravity of the second door 600 and the water guide 700, thus enabling the abutting part 310 to provide support and fixation for the connecting part 720. Simultaneously, by providing the connecting part 720 and the abutting part 310, the connection or disassembly between the water guide 700 and the abutting part 300 can be achieved more conveniently. For example, before connecting the connecting part 720 and the abutting part 310, the second door 600 can be pre-inserted and glued into the limiting groove 701 of the water guide 700. Then, the second door 600 and the water guide 700 can be treated as a whole, and the relative fixation of the second door 600 and the abutting part 300 can be achieved by connecting the connecting part 720 and the abutting part 310.

[0112] like Figure 8 and Figure 9 As shown, the door assembly 10 also includes a threaded connector. The abutment portion 310 has a through hole 311 extending along the height direction of the first door body 100. The connecting portion 720 has a threaded hole 721 that matches the threaded connector. The threaded connector passes through the through hole 311 and is threadedly connected to the threaded hole 721.

[0113] By using threaded connectors such as bolts and cooperating with through holes 311 and threaded holes 721, the connection or disassembly between the water guide 700 and the stop 300 can be quickly achieved by rotating the threaded connectors. The threaded hole 721 is located above the through hole 311, so that the threaded connector passes through the through hole 311 from bottom to top and is threaded into the threaded hole 721. This allows the head of the threaded connector, such as the bolt head, to be hidden below the stop 310, and the head of the threaded connector to be closer to the lower edge of the door assembly 10, avoiding the head of the threaded connector occupying space in the middle area of ​​the cooking cavity.

[0114] Hot condensate drips down from the door assembly 10. To reduce the risk of burns to the operator of the cooking equipment from the hot condensate dripping down during the opening of the door assembly 10, such as... Figure 7 As shown, the water guide 700 also has a water guide groove 710, which is disposed on the side of the limiting groove 701 away from the first door body 100 and communicates with the surface of the second door body 600.

[0115] The opening of the water guide trough 710 can be set on the wall of the water guide 700 on the side away from the first door 100. During the process of the door assembly 10 from closing to opening, the second door 600 is gradually adjusted from vertical to tilted. At this time, the opening of the water guide trough 710 is also tilted upward, so that the condensate can be collected and temporarily stored in the water guide trough 710.

[0116] like Figure 7 and Figure 8 As shown, the door assembly 10 also includes a third door 800. One of the left support 410 and the right support 420 has a stepped surface 440 on the side facing the other. Each stop 300 has a first limiting structure 320 extending toward the upper support 500 on the side facing the upper support 500. The upper support 500 has a second limiting structure 520 extending toward the stop 300 on the side facing the stop 300. The third door 800 is located between the first door 100 and the second door 600, and is located on the stepped surface 440 of the left support 410 and the right support 420. The bottom end of the third door 800 is limited to the stepped surface 440 and the first limiting structure 320, and the top end of the third door 800 is limited between the stepped surface 440 and the second limiting structure 520.

[0117] The stepped surface 440 provides a mounting base for the third door 800, allowing it to be fixed in contact with the two stepped surfaces 440, thus increasing the stability of the third door 800 after connection. This design is simple and easy to implement. The third door 800 divides the gap between the first door 100 and the second door 600 into two heat-insulating chambers, thereby reducing the heat dissipation efficiency between the second door 600 and the first door 100 and improving the heat insulation effect of the door assembly 10. The stepped surface 440 can be set parallel to the back of the first door 100 so that the third door 800 can be parallel to the first door 100. This ensures that the distance between any position of the first door 100 and the third door 800 remains equal, allowing the heat-insulating chamber between the third door 800 and the first door 100 to provide a uniform heat insulation effect.

[0118] The first limiting structure 320 and the support surface 501 contact the opposing surfaces of the bottom end of the third door body 800 to restrict the movement of the bottom end of the third door body 800 in the thickness direction, reduce the probability of the bottom end of the third door body 800 detaching from the support surface 501, and increase the stability of the third door body 800 in the door assembly 10. The second limiting structure 520 and the support surface 501 contact the opposing surfaces of the top end of the third door body 800 to restrict the movement of the top end of the third door body 800 in the thickness direction, reduce the probability of the top end of the third door body 800 detaching from the support surface 501, and increase the stability of the third door body 800 in the door assembly 10.

[0119] like Figure 10 As shown, the door assembly 10 also includes a seal 900, which is located below the upper bracket 500 and wraps around the outer periphery of the top of the third door 800. The second limiting structure 520 is located on the side of the seal 900 away from the first door 100 and abuts against the seal 900.

[0120] The sealing element 900 is sealed to the top of the third door 800. Simultaneously, when the second limiting structure 520 is an elastic limiting plate, the sealing element 900 provides a buffering effect. When the second limiting structure 520 abuts against the sealing element 900, part of the contact force provided by the second limiting structure 520 is absorbed by the sealing element 900, thus preventing excessive impact force from directly contacting the third door 800 and causing damage to the third door 800. Furthermore, the sealing element 900 reduces the shaking of the top end of the third door 800, improving the seal between the top end of the third door 800 and the upper support 500, preventing steam from entering the gap between the first door 100 and the third door 800 from the top end of the third door 800.

[0121] like Figure 8 and Figure 10 As shown, the side of the blocking member 300 facing the upper bracket 500 has a first limiting surface 330, and the side of the sealing member 900 facing the blocking member 300 has a second limiting surface 910. Along the height direction of the door assembly 10, the third door 800 is limited between the first limiting surface 330 and the second limiting surface 910.

[0122] The first limiting surface 330 on the abutment 300 can restrict the movement of the third door 800 towards the side opposite to the support 500, that is, the first limiting surface 330 can restrict the downward movement of the third door 800. The second limiting surface 910 on the seal 900 can restrict the movement of the third door 800 towards the side opposite to the abutment 300, that is, the second limiting surface 910 can restrict the downward movement of the third door 800. Under the combined action of the first limiting surface 330 and the second limiting surface 910, the third door 800 can be limited at both ends in the height direction of the door assembly 10, avoiding the movement of the third door 800 in the height direction and improving the stability of the relative position of the third door 800 and the first door 100. At the same time, it can also reduce the probability of the third door 800 detaching from the adhesive position of the step surface 440.

[0123] like Figure 8 and Figure 9 As shown, the first limiting structure 320 in this embodiment is a limiting boss. The side of the limiting boss facing the step surface 440 has a guide slope 321 so that the bottom end of the third door body 800 is limited between the limiting boss and the step surface 440 along the guide slope 321.

[0124] Figure 10 As shown, the second limiting structure 520 is an elastic limiting plate, and the elastic limiting plate has a guide portion 521 that is inclined to the side away from the step surface 440, so that the top end of the third door body 800 is limited between the step surface 440 and the elastic limiting plate along the guide portion 521.

[0125] A first groove is formed between the limiting boss and the stepped surface 440. The side of the limiting boss facing the stepped surface 440 and the stepped surface 440 respectively form the opposite groove walls of the first groove, so that the bottom end of the third door 800 can be inserted into the first groove and positioned between the first limiting structure 320 and the stepped surface 440, making the installation of the bottom end of the third door 800 more convenient. The guide slope 321 is used to guide the bottom end of the third door 800, making it easier to insert the bottom end of the third door 800 into the first groove. The opening of the first groove is flared to facilitate the insertion of the bottom end of the third door 800.

[0126] like Figure 10As shown, a second groove is formed between the elastic limiting plate and the stepped surface 440. The side of the elastic limiting plate facing the stepped surface 440 and the stepped surface 440 respectively constitute the opposite groove walls of the second groove. Furthermore, the elastic limiting plate is elastic and can undergo elastic deformation under external force. For example, by manually moving the free end of the elastic limiting plate away from the stepped surface 440, the opening size of the second groove can be increased, and under the guidance of the guide part 521, the top end of the third door 800 can easily enter the second groove. After the third door 800 is inserted into the second groove, by releasing the movement of the elastic limiting plate, the free end of the elastic limiting plate abuts against the third door 800 under elastic force.

[0127] like Figure 5 As shown, there are at least two second limiting structures 520, arranged sequentially at intervals along the width direction of the first door body 100.

[0128] The width direction of the first door 100 is the same as that of the third door 800. At least two second limiting structures 520 can respectively cooperate with the step surface 440 at opposite positions to limit different positions of the third door 800 in the width direction, thereby improving the limiting effect of the third door 800.

[0129] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0130] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.

[0131] It should be readily understood that the terms “on,” “above,” and “on top of” in this application should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on top of something” but also “on top of something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0132] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90° or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0133] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A door assembly for a cooking appliance, the lower end of the door assembly being hinged to the cooking appliance, characterized in that, include: First gate body (100); Two hinge support units (200) are symmetrically arranged on both sides of the first door body (100) near the edge, along the width direction of the first door body (100); each hinge support unit (200) includes a non-metallic support (210) and a metal support (220). In the same hinge bracket unit (200), the non-metallic bracket (210) and the metallic bracket (220) each have an opening on an adjacent side. The non-metallic bracket (210) and the metallic bracket (220) join at the opening to jointly form a hinge groove (201). The hinge groove (201) has an opening on the side near the lower end of the door assembly. The opening is configured to allow the hinge (20) to extend into or out of the hinge groove (201).

2. The door assembly according to claim 1, characterized in that, In the same hinge bracket unit (200), the openings of the non-metallic bracket (210) and the metal bracket (220) are opposite to each other along the width direction of the first door body (100) and are detachably joined.

3. The door assembly according to claim 2, characterized in that, The non-metallic support (210) has a receiving groove (211) that opens toward the side of the metallic support (220); Along the thickness direction of the first door body (100), the metal bracket (220) includes a bracket body (221), and both ends of the bracket body (221) have bent portions (222) that bend toward the side of the non-metallic bracket (210); When the non-metallic bracket (210) and the metallic bracket (220) are arranged to form the hinge groove (201), the bent portion (222) is located within the receiving groove (211).

4. The door assembly according to claim 3, characterized in that, The bottom wall of the receiving groove (211) has a slot (212) at the position corresponding to the bent portion (222). When the non-metallic bracket (210) and the metal bracket (220) are arranged together to form the hinge slide (201), the bent portion (222) is inserted into the slot (212) corresponding to it.

5. The door assembly according to claim 3, characterized in that, The corner area where the bend (222) connects to the bracket body (221) has a recessed clearance space (223) facing away from the non-metallic bracket (210), the clearance space (223) being configured to avoid the hinge (20).

6. The door assembly according to claim 5, characterized in that, Along the thickness direction of the first door body (100), the bracket body (221) includes a first connecting segment (2211), a second connecting segment (2212), and a third connecting segment (2213) connected in sequence. In the same hinge bracket unit (200), the first connecting segment (2211) and the third connecting segment (2213) are respectively connected to the corresponding bending portion (222), and the second connecting segment (2212) protrudes towards the side of the non-metallic bracket (210). The first connecting segment (2211) and the third connecting segment (2213) are both recessed towards the side away from the non-metallic bracket (210). The first connecting segment (2211) and the third connecting segment (2213) respectively form the clearance space (223) relative to the recess of the second connecting segment (2212).

7. The door assembly according to any one of claims 1-6, characterized in that, The non-metallic support (210) is a plastic support; and / or, The metal bracket (220) is a sheet metal bracket.

8. The door assembly according to any one of claims 1-6, characterized in that, The door assembly also includes two abutments (300), which are respectively disposed at the bottom ends of the two non-metallic brackets (210) and connected to the corresponding non-metallic brackets (210); wherein, one abutment (300) corresponds to one non-metallic bracket (210).

9. The door assembly according to claim 8, characterized in that, The abutment (300) is a plastic part, and the abutment (300) and the corresponding non-metallic bracket (210) are an integral structure.

10. The door assembly according to claim 8, characterized in that, The door assembly also includes a left bracket (410) and a right bracket (420). Along the width direction of the first door (100), the left bracket (410) and the right bracket (420) are disposed opposite to each other at positions near the two side edges of the first door (100) and are respectively attached to the first door (100). Both the left bracket (410) and the right bracket (420) have a receiving cavity (430). The two hinge bracket units (200) are respectively disposed in the receiving cavities (430) corresponding to them.

11. A cooking device, characterized in that, include: The device body and the door assembly as described in any one of claims 1-10, wherein the device body has an inner liner, the front side of the device body has an opening communicating with the inner liner, and the door assembly is movably disposed at the opening to open or close the opening.

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