Home appliances

Abstract

A home appliance (100) comprising: a bracket (14); a door body (12) pivotably connected to the bracket (14) and having a door hook; and a buffer assembly (16) attached to the bracket (14), comprising a first driving elastic member (60), a second driving elastic member (64), a damper (18), and a driving lever (20), the driving lever (20) being provided with a connection portion (70), and the first driving elastic member (60) and the second driving elastic member (64) being connected to the connection portion (70), when the door body (12) is open. The door hook is detached from the driving lever (20), the included angle between the first driving elastic member (60) and the first connection wire (L1) is selected from the range of 0 degrees to 60 degrees, the included angle between the second driving elastic member (64) and the second connection wire (L2) is selected from the range of 0 degrees to 60 degrees, the first connection wire (L1) is a line connecting a first connection point formed by the first driving elastic member (60) and the connection portion (70) and the rotation center of the driving lever (20), and the second connection wire (L2) is a line connecting a second connection point formed by the second driving elastic member (64) and the connection portion (70) and the rotation center of the driving lever (20).

Description

[Technical Field]

[0001] This application claims priority to Chinese patent application numbers "202221380557.9" and "202221392217.8" filed by Guangdong Midea Kitchen Appliance Manufacturing Co., Ltd. and Midea Group Co., Ltd. on June 1, 2022, and the entire contents of the above Chinese patent applications are incorporated herein by reference.

[0002] The present application relates to the technical field of electrical appliances, and in particular to household appliances. [Background technology]

[0003] In the related art, a home appliance may include a chamber body and a door body, a chamber disposed within the chamber body, and the door body pivotally connected to the chamber body to open and close the chamber. To reduce noise when closing the door, the home appliance is provided with an interlock structure for slowly closing the door. The interlock structure for slowly closing the door includes a drive spring, which provides an acceleration force to the door body through a drive lever when closing the door. Therefore, a technique for designing the drive force of the drive spring is needed. Summary of the Invention [Problem to be solved by the invention]

[0004] An embodiment of the present application provides a consumer electronics product. [Means for solving the problem]

[0005] A first embodiment of the present application provides a home appliance comprising: a bracket; a door body pivotably connected to the bracket and having a door hook; and a buffer assembly attached to the bracket, the buffer assembly comprising a first driving elastic member, a second driving elastic member, a damper, and a driving lever, the damper being movably connected to the driving lever, the driving lever being provided with a connection portion, the first driving elastic member and the second driving elastic member being connected to the connection portion, and when the door body is open, the door hook is released from the driving lever. the angle between the first driving elastic member and the first connecting wire is selected from a range of 0 to 60 degrees, the angle between the second driving elastic member and the second connecting wire is selected from a range of 0 to 60 degrees, the first connecting wire is a line connecting a first connecting point formed by the first driving elastic member and the connecting portion to the rotation center of the driving lever, and the second connecting wire is a line connecting a second connecting point formed by the second driving elastic member and the connecting portion to the rotation center of the driving lever, and when the door body is closed, the door hook abuts against the driving lever and presses the damper.

[0006] In the above-mentioned home appliance, when the door body is open, by setting the angle range between the first driving elastic member and the second driving elastic member and the target connection, both driving elastic members can apply appropriate driving force during the process of closing the door body, allowing the door body to close smoothly.

[0007] In some embodiments, when the door body is open, the included angle between the first driving elastic member and the second driving elastic member is selected from the range of 7 degrees to 110 degrees.

[0008] In some embodiments, when the door body is open, the resultant force of the first driving elastic material and the second driving elastic material is located above the center of rotation of the driving lever, and when the door body is closed, the resultant force of the first driving elastic material and the second driving elastic material is located below the center of rotation of the driving lever.

[0009] In some embodiments, when the door body is open, a tangential force component of the first drive elastic member applies a rotational torque to the drive lever to rotate it in a first direction, and a tangential force component of the second drive elastic member applies a rotational torque to the drive lever to rotate it in a second direction, the first direction being opposite to the second direction, and the rotational torque applied by the first drive elastic member is greater than the rotational torque applied by the second drive elastic member.

[0010] In some embodiments, when the door body is closed, a tangential force component of the first driving elastic member applies a rotational torque to the driving lever to rotate it in a second direction, and a tangential force component of the second driving elastic member applies a rotational torque to the driving lever to rotate it in the second direction, and the rotational torque applied by the second driving elastic member is greater than the rotational torque applied by the first driving elastic member.

[0011] In some embodiments, the buffer assembly further includes a pivoting lever, a switch is provided on the bracket, the pivoting lever is pivotally connected to the bracket, and when the door body is closed, the door hook abuts against the pivoting lever so that the pivoting lever triggers the switch.

[0012] In some embodiments, the pivot lever includes a pivot arm pivotally connected to the bracket and a contact arm connecting the pivot arm, the bracket having a slot formed therein, the contact arm being at least partially positioned within the slot, and the contact arm being used to trigger the switch.

[0013] In some embodiments, the drive lever includes a first arm and a second arm spaced apart, and during the process of closing the door body, after the door hook passes under the second arm, it abuts against the first arm to rotate the drive lever, and the contact arm is provided with a protruding post and the first arm is provided with a notch, and during the process of closing the door body, the first arm avoids the protruding post by using the notch.

[0014] In some embodiments, the bracket further comprises a stop block that shields at least a portion of the pivot arm.

[0015] In some embodiments, the tail end of the door hook has a first guide surface, the drive lever includes a first arm and a second arm spaced apart, a side of the second arm has a second guide surface, and during the process of closing the door body, the first guide surface is connected in cooperation with the second guide surface so that the second arm engages with the door hook after the tail end of the door hook has bypassed the second arm.

[0016] A second embodiment of the present application provides a home appliance.

[0017] An embodiment of the present application provides a home appliance comprising: a door body having a door hook; a bracket pivotally connected to the door body; and a buffer assembly attached to the bracket, the buffer assembly comprising a recoverable damper and a drive lever, the drive lever pivotally connected to the bracket, the damper comprising a body fixed to the bracket and a rod movably connected to the body; when the door body is closed, the door hook abuts against the drive lever and compresses the rod; and when the door body is open, the door hook disengages from the drive lever, the damper is in a natural length state, and there is a gap between the rod and the drive lever.

[0018] In the above-mentioned home appliances, a recoverable damper is adopted, and the damper and the driving lever are not linked together, so that the rocking block can be omitted, the number of parts can be reduced, and the movement process can be simplified.

[0019] In some embodiments, the bracket is provided with a receiving groove, and the body is at least partially secured in the receiving groove.

[0020] In some embodiments, the bracket is provided with a limiting post that abuts against the drive lever to limit the rotation of the drive lever when the door body is closed.

[0021] In some embodiments, the buffer assembly further includes a pivoting lever, the switch being provided on the bracket, the pivoting lever being pivotally connected to the bracket; When the door body is closed, the door hook abuts against the pivot lever so that the pivot lever triggers the switch.

[0022] In some embodiments, the pivot lever includes a pivot arm pivotally connected to the bracket and a contact arm connecting the pivot arm, the bracket having a slot formed therein, the contact arm being at least partially positioned within the slot, and the contact arm being used to trigger the switch.

[0023] In some embodiments, the drive lever includes a first arm and a second arm spaced apart, and during the process of closing the door body, after the door hook passes under the second arm, it abuts against the first arm to rotate the drive lever, and the contact arm is provided with a protruding post and the first arm is provided with a notch, and during the process of closing the door body, the first arm avoids the protruding post by using the notch.

[0024] In some embodiments, the bracket is further provided with a stop block that shields at least a portion of the pivot arm.

[0025] In some embodiments, the top surface of the stopper block includes an inclined surface for guiding the door hook so that it abuts against the contact arm during the process of closing the door body.

[0026] In some embodiments, the door hook includes a lower door hook, the bracket is provided with a first switch, the switch includes a second switch and a third switch, and the buffer assembly is arranged so that, during the process of closing the door body, the drive lever first triggers the first switch under the drive of the lower door hook, and then the pivot lever triggers the second switch under the drive of the lower door hook, and then triggers the third switch.

[0027] In some embodiments, the tail end of the door hook has a first guide surface, the drive lever includes a first arm and a second arm spaced apart, a side of the second arm has a second guide surface, and during the process of closing the door body, the first guide surface is connected in cooperation with the second guide surface so that the second arm engages with the door hook after the tail end of the door hook has bypassed the second arm.

[0028] Additional aspects and advantages of the present application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the present application. [Brief explanation of the drawings]

[0029] The above and / or additional aspects and advantages of the present application will become apparent and easier to understand from the following description of the embodiments taken in conjunction with the accompanying drawings.

[0030] [Figure 1] 1 is a schematic diagram illustrating the structure of a household electrical appliance according to an embodiment of the present application; [Figure 2] 1 is a schematic diagram illustrating the structure of a household electrical appliance according to an embodiment of the present application; [Figure 3] 1 is a schematic diagram illustrating the structure of a household electrical appliance according to an embodiment of the present application; [Figure 4] 1 is a schematic diagram illustrating the structure of a household electrical appliance according to an embodiment of the present application; [Figure 5] 1 is a schematic diagram illustrating an assembly of a bracket and a pivot lever according to an embodiment of the present application. [Figure 6]1 is a schematic diagram illustrating an assembly of a bracket and a pivot lever according to an embodiment of the present application. [Figure 7] 1 is an exploded schematic view of a household appliance according to an embodiment of the present application; [Figure 8] 1 is a schematic diagram illustrating a structure of a portion of a household appliance according to an embodiment of the present application; [Figure 9] 1 is a schematic diagram illustrating a structure of a portion of a household appliance according to an embodiment of the present application; [Figure 10] 1 is a schematic diagram illustrating a structure of a portion of a household appliance according to an embodiment of the present application; [Figure 11] 1 is a schematic diagram illustrating a structure of a portion of a household appliance according to an embodiment of the present application; [Figure 12] 1 is a schematic diagram illustrating the assembly of a door hook and a door body according to an embodiment of the present application. FIG. [Figure 13] 1 is a schematic diagram illustrating the assembly of a door hook and a door body according to an embodiment of the present application. FIG. [Figure 14] 1 is a schematic diagram illustrating a structure of a swing block according to an embodiment of the present application; [Figure 15] 1 is a schematic diagram illustrating a structure of a swing block according to an embodiment of the present application; [Figure 16] 1 is a schematic diagram illustrating a structure of a swing block according to an embodiment of the present application; [Figure 17] 1 is a schematic diagram illustrating the structure of a protective cover according to an embodiment of the present application; [Figure 18] FIG. 18 is a cross-sectional view taken along line AA in FIG. [Figure 19] 1 is a schematic diagram illustrating the structure of a protective cover according to an embodiment of the present application; [Figure 20] 1 is a schematic diagram illustrating the structure of a protective cover according to an embodiment of the present application; [Figure 21] 1 is a schematic diagram illustrating the structure of a protective cover according to an embodiment of the present application; [Figure 22] 1 is a schematic diagram showing the structure of a door hook according to an embodiment of the present application; [Figure 23] FIG. 23 is a cross-sectional view taken along line BB in FIG. 22. [Figure 24]1 is a schematic diagram showing the structure of a door hook according to an embodiment of the present application; [Figure 25] 1 is a schematic diagram showing the structure of a door hook according to an embodiment of the present application; [Figure 26] 1 is a schematic diagram showing the structure of a door hook according to an embodiment of the present application; [Figure 27] 1 is a schematic diagram showing the structure of a door hook according to an embodiment of the present application; [Figure 28] 1 is a schematic diagram showing a structure of a bracket according to an embodiment of the present application; [Figure 29] FIG. 29 is a cross-sectional view taken along line CC in FIG. 28. [Figure 30] 1 is a schematic diagram showing a structure of a bracket according to an embodiment of the present application; [Figure 31] 1 is a schematic diagram showing a structure of a bracket according to an embodiment of the present application; [Figure 32] 1 is a schematic diagram showing a structure of a bracket according to an embodiment of the present application; [Figure 33] 1 is a schematic diagram showing a structure of a bracket according to an embodiment of the present application; [Figure 34] 1 is a schematic diagram illustrating a structure of a driving lever according to an embodiment of the present application; [Figure 35] FIG. 35 is a cross-sectional view taken along line DD in FIG. 34. [Figure 36] 1 is a schematic diagram illustrating a structure of a driving lever according to an embodiment of the present application; [Figure 37] 1 is a schematic diagram illustrating a structure of a driving lever according to an embodiment of the present application; [Figure 38] 1 is a schematic diagram illustrating a structure of a driving lever according to an embodiment of the present application; [Figure 39] 1 is a schematic diagram illustrating a structure of a driving lever according to an embodiment of the present application; [Figure 40] 1 is a schematic diagram illustrating a structure of a tilt block according to an embodiment of the present application; [Figure 41] 1 is a schematic diagram illustrating a structure of a tilt block according to an embodiment of the present application; [Figure 42] 1 is a schematic diagram illustrating a structure of a pivot lever according to an embodiment of the present application. [Figure 43] 1 is a schematic diagram illustrating a structure of a pivot lever according to an embodiment of the present application. [Figure 44] 1 is a schematic diagram illustrating a structure of a pivot lever according to an embodiment of the present application. [Figure 45] 1 is a schematic diagram illustrating a structure of a pivot lever according to an embodiment of the present application. [Figure 46] 1 is a schematic diagram illustrating a process 1 of closing the door of a home appliance according to an embodiment of the present application; FIG. [Figure 47] 1 is a schematic diagram illustrating a process 1 of closing the door of a home appliance according to an embodiment of the present application; FIG. [Figure 48] 1 is a schematic diagram illustrating a process 1 of closing the door of a home appliance according to an embodiment of the present application; FIG. [Figure 49] 1 is a schematic diagram illustrating a process 1 of closing the door of a home appliance according to an embodiment of the present application; FIG. [Figure 50] 1 is a schematic diagram illustrating a force-receiving state of a driving elastic member in a door closing process 1 of a home appliance according to an embodiment of the present application. FIG. [Figure 51] 1 is a schematic diagram illustrating a force-receiving state of a driving elastic member in a door closing process 1 of a home appliance according to an embodiment of the present application. FIG. [Figure 52] FIG. 2 is a schematic diagram showing a process 2 of closing the door of a home appliance according to an embodiment of the present application. [Figure 53] FIG. 2 is a schematic diagram showing a process 2 of closing the door of a home appliance according to an embodiment of the present application. [Figure 54] FIG. 2 is a schematic diagram showing a process 2 of closing the door of a home appliance according to an embodiment of the present application. [Figure 55] FIG. 2 is a schematic diagram showing a process 2 of closing the door of a home appliance according to an embodiment of the present application. [Figure 56] 10 is a schematic diagram illustrating the force-receiving state of the driving elastic member in process 2 of closing the door of the home appliance according to the embodiment of the present application. FIG. [Figure 57] FIG. 2 is a schematic diagram showing a process 3 of closing the door of a home appliance according to an embodiment of the present application. [Figure 58]FIG. 2 is a schematic diagram showing a process 3 of closing the door of a home appliance according to an embodiment of the present application. [Figure 59] FIG. 2 is a schematic diagram showing a process 3 of closing the door of a home appliance according to an embodiment of the present application. [Figure 60] 10 is a schematic diagram illustrating the force-receiving state of the driving elastic member in the door closing process 3 of the home appliance according to the embodiment of the present application. FIG. [Figure 61] 10A and 10B are diagrams illustrating the length change of a first driving elastic member during the door closing process according to an embodiment of the present application. [Figure 62] 10A and 10B are diagrams illustrating the change in length of the second driving elastic member during the door closing process according to an embodiment of the present application. [Figure 63] 1A and 1B are schematic diagrams illustrating a process of closing the door of a home appliance according to an embodiment of the present application; [Figure 64] 1A and 1B are schematic diagrams illustrating a process of closing the door of a home appliance according to an embodiment of the present application; [Figure 65] 1A and 1B are schematic diagrams illustrating a process of closing the door of a home appliance according to an embodiment of the present application; [Figure 66] 1 is a schematic diagram illustrating the process of opening the door of a home appliance according to an embodiment of the present application; [Figure 67] 1 is a schematic diagram illustrating the process of opening the door of a home appliance according to an embodiment of the present application; [Figure 68] 1 is a schematic diagram illustrating the process of opening the door of a home appliance according to an embodiment of the present application; [Figure 69] FIG. 10 is a schematic diagram illustrating a state after the driving lever is abnormally triggered according to an embodiment of the present application. [Figure 70] 1 is a schematic diagram illustrating a structure of a portion of a household appliance according to an embodiment of the present application; [Figure 71] 1 is a schematic diagram illustrating a structure of a portion of a household appliance according to an embodiment of the present application; [Figure 73] 1 is a schematic diagram illustrating a structure of a portion of a household appliance according to an embodiment of the present application; [Figure 74] 1 is an exploded schematic view of a household appliance according to an embodiment of the present application; [Figure 75] 1 is a schematic diagram illustrating a structure of a portion of a household appliance according to an embodiment of the present application; [Figure 76] 1 is a schematic diagram illustrating a structure of a portion of a household appliance according to an embodiment of the present application; [Figure 77] 1 is a schematic diagram illustrating a structure of a portion of a household appliance according to an embodiment of the present application; [Figure 78] 1 is a schematic diagram illustrating the structure of a protective cover according to an embodiment of the present application; [Figure 79] FIG. 79 is a cross-sectional view taken along line AA in FIG. 78. [Figure 80] 1 is a schematic diagram illustrating the structure of a protective cover according to an embodiment of the present application; [Figure 81] 1 is a schematic diagram illustrating the structure of a protective cover according to an embodiment of the present application; [Figure 82] 1 is a schematic diagram illustrating the structure of a protective cover according to an embodiment of the present application; [Figure 83] 1 is a schematic diagram showing a structure of a bracket according to an embodiment of the present application; [Figure 84] FIG. 84 is a cross-sectional view taken along line CC in FIG. 83. [Figure 85] 1 is a schematic diagram showing a structure of a bracket according to an embodiment of the present application; [Figure 86] 1 is a schematic diagram showing a structure of a bracket according to an embodiment of the present application; [Figure 87] 1 is a schematic diagram showing a structure of a bracket according to an embodiment of the present application; [Figure 88] 1 is a schematic diagram showing a structure of a bracket according to an embodiment of the present application; [Figure 89] 1 is a schematic diagram illustrating a structure of a driving lever according to an embodiment of the present application; [Figure 90] FIG. 89 is a cross-sectional view taken along line DD in FIG. 89. [Figure 91] 1 is a schematic diagram illustrating a structure of a driving lever according to an embodiment of the present application; [Figure 92] 1 is a schematic diagram illustrating a structure of a driving lever according to an embodiment of the present application; [Figure 93]1 is a schematic diagram illustrating a structure of a driving lever according to an embodiment of the present application; [Figure 94] 1 is a schematic diagram illustrating a structure of a driving lever according to an embodiment of the present application; [Figure 95] 1A-1C are schematic diagrams illustrating the process of closing a door (of both driving elastic members) of a home appliance according to an embodiment of the present application. [Figure 96] 1A-1C are schematic diagrams illustrating the process of closing a door (of both driving elastic members) of a home appliance according to an embodiment of the present application. [Figure 97] 1A-1C are schematic diagrams illustrating the process of closing a door (of both driving elastic members) of a home appliance according to an embodiment of the present application. [Figure 98] FIG. 10 is a schematic diagram illustrating a state after the driving lever is abnormally triggered according to an embodiment of the present application. [Figure 99] 1 is a schematic diagram illustrating a structure of a portion of a household appliance according to an embodiment of the present application; [Figure 100] 1 is a schematic diagram illustrating a structure of a portion of a household appliance according to an embodiment of the present application; [Figure 101] 1A-1C are schematic diagrams illustrating the process of closing a door (single-actuated elastic material) of a home appliance according to an embodiment of the present application. DETAILED DESCRIPTION OF THE INVENTION

[0031]

[0023] The following detailed description will discuss the embodiments of the present application as shown in the accompanying drawings, in which the same or similar reference numerals throughout indicate the same or similar elements, or elements having the same or similar functions. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present specification, and are not to be construed as limiting the present specification.

[0032] In the description of this application, the orientations or positional relationships indicated by terms such as "center," "length," "width," "thickness," "top," "bottom," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," "clockwise," "counterclockwise," etc. are orientations or positional relationships shown based on the drawings, and are intended solely to facilitate and simplify the description of this application, and do not indicate or imply that the referenced devices or elements need to have a particular orientation, be configured, or operate in a particular orientation, and therefore cannot be understood as limiting this application. In the description of this application, "plurality" means two or more than two, unless otherwise clearly and specifically limited.

[0033] The present disclosure provides many different embodiments or examples for realizing different structures of the present application. To simplify the disclosure herein, specific example components and configurations will be described herein. Of course, these are merely examples and are not intended to limit the present application. Also, the present application may repeat reference numerals and / or letters in different examples; such repetition is for purposes of brevity and clarity and does not in itself indicate a relationship between the various embodiments and / or configurations discussed. Furthermore, while examples of various specific processes and materials have been provided in the present application, those skilled in the art may recognize the application of other processes and / or the use of other materials.

[0034] 1 to 11 and 50 to 51 , a home appliance 100 according to a first embodiment of the present application includes a door body 12, a bracket 14, and a buffer assembly 16. The door body 12 has a door hook. The door body 12 is rotatably connected to the bracket 14. The buffer assembly 16 is attached to the bracket 14, and includes a first driving elastic member 60, a second driving elastic member 64, a damper 18, and a driving lever 20. The damper 18 is movably connected to the driving lever 20. The driving lever 20 is provided with a connection portion 70, and the first driving elastic member 60 and the second driving elastic member 64 are connected to the connection portion 70.

[0035] When the door body 12 is open, the door hook disengages from the drive lever 20, the included angle T1 between the first drive elastic member 60 and the first connection line L1 is selected from the range of 0 degrees to 60 degrees, the included angle T2 between the second drive elastic member 64 and the second connection line L2 is selected from the range of 0 degrees to 60 degrees, the first connection line L1 is a line connecting the first connection point formed by the first drive elastic member 60 and the connection portion 70 to the rotation center of the drive lever 20, and the second connection line L2 is a line connecting the second connection point formed by the second drive elastic member 64 and the connection portion 70 to the rotation center of the drive lever 20.

[0036] When the door body 12 is closed, the door hook abuts against the drive lever 20 and presses the damper 18.

[0037] In the home appliance 100, when the door body 12 is open, by setting the angle range between the first driving elastic member 60 and the second driving elastic member 64 and the target connection, both driving elastic members can apply appropriate driving force during the process of closing the door body 12, allowing the door body 12 to close smoothly.

[0038] Specifically, the home appliance 100 includes, but is not limited to, home appliances 100 having a door body 12, such as microwave ovens, ovens (including electric ovens, microwave ovens, and microwave steamer combination machines), steaming cabinets, dishwashers, and sterilization cabinets. The embodiments of the present application will be described using an example in which the home appliance 100 is a microwave oven. The description using an example in which the home appliance 100 is a microwave oven is for the purpose of making it easier to understand the implementation of the present application, and should not be understood as limiting the present application.

[0039] The door body 12 may be a double-glazed door body 12, or may be a leak-wave-proof glass door body 12. One advantage of using a glass door body 12 is that the user can easily observe the state of food inside the home appliance 100 from the outside. In addition, a handle can be provided on the outer surface of the door body 12, making it easier for the user to open and close the door.

[0040] The door hook may be made entirely of metal or plastic, or may be made of a combination of different materials. The door hook is elongated and has a hook-shaped portion 86 at its tail end, which facilitates engagement. The number of door hooks may be determined according to actual circumstances. For example, the number of door hooks may be one or more. In the embodiment of the present application, the door hook includes two door hooks, an upper door hook 26 and a lower door hook 28, as shown in FIGS. 12 and 13 . In one embodiment, the upper door hook 26 and the lower door hook 28 may be connected to form an integral structural member and fixed to the door body 12. In another embodiment, the upper door hook 26 and the lower door hook 28 may be separately fixed to the door body 12, or the door hooks may be movably connected to the door body 12. No specific limitations are provided here.

[0041] During the process of closing the door body 12, the lower door hook 28 is primarily subjected to the buffering force of the buffer assembly 16, thereby reducing noise during door closing. That is, when the door body 12 is closed, the lower door hook 28 abuts against the drive lever 20 and presses the damper 18. When the door body 12 is open, the lower door hook 28 disengages from the drive lever 20, and the length of the damper 18 becomes the longest. In other embodiments, the upper door hook 26 may be subjected to the buffering force of the buffer assembly 16 to reduce noise during door closing, or both the upper door hook 26 and the lower door hook 28 may be subjected to the buffering force of the buffer assembly 16 to reduce noise during door closing; it should be understood that this is not particularly limited. In the following embodiments, an example in which the lower door hook 28 is subjected to the buffering force of the buffer assembly 16 will be described.

[0042] 10-11 and 40-41, home appliance 100 further includes a tilting block 30 and a pressure spring 32, which are attached to bracket 14, with tilting block 30 having an internal storage space and pressure spring 32 partially housed in the storage space, with the top of pressure spring 32 abutting against the top wall of the storage space and the bottom of pressure spring 32 abutting against a support extending into the storage space in bracket 14. The top of tilting block 30 has an inclined surface 74 that slopes upward along a vertical plane toward the interior of bracket 14.

[0043] During the process of closing the door body 12, the tail end of the upper door hook 26 abuts against the inclined surface 74, causing the inclined block 30 to descend and compress the pressure spring 32, and when the tail end of the upper door hook 26 straddles the inclined surface 74, the inclined block 30 engages with the upper door hook 26 under the action of the pressure spring 32.

[0044] During the process of opening the door body 12, the upper door hook 26 presses the inclined block 30 to move downward and outward until the upper door hook 26 is completely released. The pressure spring 32 returns the inclined block 30 to its original position.

[0045] In the embodiment of the present application, the so-called opening of the door body 12 can refer to a state in which, as shown in Figures 1 to 4, when the door body 12 is opened, the lower door hook 28 does not apply a biasing force to the drive lever 20 to rotate the drive lever 20, or the applied biasing force is insufficient to rotate the drive lever 20. The so-called closing of the door body 12 can refer to a state in which the lower door hook 28 is at the final position of the door closing stroke, as shown in Figures 63 to 65.

[0046] The home appliance 100 may include a chamber body (not shown), to which a bracket 14 can be fixed, and a door body 12 is pivotally connected. The chamber body has a chamber with an opening on the front side, and the door body 12 is used to open and close the opening. Food to be heated can be placed inside the chamber.

[0047] The damper 18 includes a body 22 pivotally mounted to the bracket 14 and a rod 24 movably connected to the body 22, such that the body 22 and the rod 24 can pivot to accommodate the rotation of the drive lever 20 during the process of opening and closing the door body 12. It will be understood that in other embodiments, the body 22 may be fixed against rotation.

[0048] In one embodiment, the buffer assembly 16 further includes a swing block 34 that pivotally connects the drive lever 20 and the damper 18. When the lower door hook 28 applies a biasing force to the drive lever 20, the drive lever 20 rotates through a predetermined angle, causing the swing block 34 to compress the damper 18. When the damper 18 is compressed, the damper 18 provides damping to the lower door hook 28 as it rotates. In this way, when the lower door hook 28 applies a biasing force to the drive lever 20, the drive lever 20 rotates through a predetermined angle, driving the swing block 34 to compress the damper 18. Furthermore, when the lower door hook 28 initially acts on the drive lever 20, the lower door hook 28 bounces off the damper 18, preventing the door from closing smoothly or stagnate, improving the user experience.

[0049] 34 to 39, an accommodation groove 35 is formed in the drive lever 20, a rotation space 37 is formed at the top of the accommodation groove 35, and a swing space 39 is formed at the bottom of the accommodation groove 35, one end of the swing block 34 rotates and is housed in the rotation space 37, and the other end of the swing block 34 is housed in the swing space 39, and the swing space 39 provides a space in which the drive lever 20 rotates by a predetermined angle. As a result, after the drive lever 20 has rotated by a predetermined angle, the swing block 34 can be driven again to rotate.

[0050] The drive lever 20 includes a first arm 52 and a second arm 54 spaced apart, with a gap formed between the first arm 52 and the second arm 54, the second arm 54 being closer to the door body 12 (door hook) than the first arm 52, and the second arm 54 being shorter than the first arm 52 with respect to the rotation axis of the drive lever 20.

[0051] The first arm 52 has a storage groove 35, and specifically, in the embodiment shown in Figure 34, the storage groove 35 in which the swing block 34 is located is opened on the right side of the first arm 52.

[0052] 14 to 16, the swing block 34 has, at its top end, one connecting rotation part 41 that is rotatably accommodated in the rotation space 37. In one example, the rotation space 37 is substantially cylindrical, and the connecting rotation part 41 has a cylindrical shape that matches the rotation space 37.

[0053] By providing the swing space 39, when the drive lever 20 has just started to rotate, it does not act on the swing block 34 and does not compress the damper 18, so that at the initial stage of contact with the drive lever 20, the lower door hook 28 does not encounter resistance from the damper 18 and does not bounce back or become stuck. The size of the swing space 39 can determine the size of the predetermined angle, and orientation can be performed according to the actual situation.

[0054] Furthermore, a protrusion 43 is provided on the right side of the swing space 39 to restrict the swing block 34 within the accommodation groove 35 and prevent the swing block 34 from coming off the accommodation groove 35 .

[0055] Referring to Figure 14, an open groove 45 is provided at the top end of the swing block 34, and the rod 24 of the damper 18 passes through the open groove 45 so as to be rotatably connected to the swing block 34. By providing the open groove 45, the rod member 24 can be avoided during the rotation process of the damper 18.

[0056] 4, during the process of closing the door body 12, the lower door hook 28 pushes the drive lever 20 to rotate it counterclockwise, and after the drive lever 20 rotates by a predetermined angle (the gap between the drive lever 20 and the swing block 34 disappears), the swing block 34 applies a biasing force to the rod 24 to move it into the body 22, and the body 22 applies a damping force to the rod 24, reducing the speed at which the door body 12 closes and further reducing noise when the door is closed. Referring to FIG. 68, during the process of opening the door body 12, the lower door hook 28 rotates the drive lever 20 clockwise, and the drive lever 20 can move the rod 24 via the swing block 34, and the rod 24 is driven by the body 22 to extend outside the body 22 until the rotation of the drive lever 20 stops and the damper 18 returns to its initial state.

[0057] 30, in some embodiments, the bracket 14 is provided with a limiting post 38 that abuts against the driving lever 20 when the door body 12 is closed to limit the rotation of the driving lever 20. In this way, the rotation range of the driving lever 20 can be limited, and damage to the driving lever 20 can be prevented.

[0058] Specifically, the position of the limit post 38 can be set so that the rotation of the drive lever 20 does not exceed the position of the limit post 38. This position is the position where the drive lever 20 can rotate after the door is closed.

[0059] The home appliance 100 according to the embodiment of the present application includes both a first driving elastic member 60 and a second driving elastic member 64, and the driving elastic members and the driving lever 20 are located on opposite sides of the bracket 14, respectively, and the driving lever 20 and the damper 18 are located on the same side of the bracket 14. As shown in FIGS. 32 and 33 , the bracket 14 is provided with a through-hole 66 through which a connecting portion 70 passes, and the connecting portion 70 can be connected to both driving elastic members, and both driving elastic members accelerate and rotate the driving lever 20, which in turn accelerates and rotates the door main body 12. This allows the lower door hook 28 (door main body 12) to accelerate and then decelerate.

[0060] When the door body 12 is open, the included angle T1 between the first driving elastic member 60 and the first connecting wire L1 is selected from the range of 0 degrees to 60 degrees, and in one example, the included angle T1 can be 0 degrees, 20 degrees, 30 degrees, 40 degrees, 50 degrees, 60 degrees, or other included angles between 0 degrees and 60 degrees.

[0061] The included angle T2 between the second driving elastic member 64 and the second connection line L2 is selected from the range of 0 degrees to 60 degrees. For example, the included angle T2 can be 0 degrees, 20 degrees, 30 degrees, 40 degrees, 50 degrees, 60 degrees, or any other included angle between 0 degrees and 60 degrees. The included angles T1 and T2 can be the same or different. The positions and angles of the driving elastic members before closing the door determine the positions and angles of both driving elastic members after closing the door. Therefore, the angles and positions of both driving elastic members can adaptively change following the rotation of the driving lever 20. By determining the rotation angle of the driving lever 20, the final positions and angles of both driving elastic members after closing the door can be determined. Therefore, when the door body 12 is open, the positions and angles of both driving elastic members before closing can be determined by setting the magnitude of the included angle between both driving elastic members and the target connection line.

[0062] In the illustrated embodiment, the specific structure of the driving elastic material is a spring. In other embodiments, the driving elastic material is not limited to a spring and may be an elastic material of other structures.

[0063] The drive elastic members and drive levers 20 located on opposite sides of the bracket 14 allow the related structural members to be distributed, thereby avoiding the disadvantages of having too many structural members on the same side of the bracket 14, which reduces space and over-concentrates weight, which is detrimental to the placement of the structural members.

[0064] The drive lever 20 can accelerate the lower door hook 28, so that during the acceleration phase, the door body 12 can be closed by the biasing force of the drive lever 20. As the lower door hook 28 accelerates, the drive lever 20 rotates and then the damper 18 is compressed. As the door closing process continues, the drive lever 20 continues to compress the rod 24 of the damper 18, increasing the amount of compression of the damper 18 and the damping force applied. When the damping force applied by the damper 18 becomes greater than the driving force applied by the drive elastic member, the lower door hook 28 begins to decelerate, preventing excessive noise when the door body 12 is closed during the deceleration phase.

[0065] The first driving elastic member 60 is positioned above and drives the second driving elastic member 64. Referring to Figures 3 and 32, one end of the first driving elastic member 60 is engaged with a positioning post 68 on the bracket 14, and the other end is engaged with a connecting portion 70 on the driving lever 20. The second driving elastic member 64 is engaged with another positioning post 68 on the bracket 14 at one end, and the other end is engaged with the connecting portion 70.

[0066] 50, when the door body 12 is open, the included angle T3 between the first driving resilient member 60 and the second driving resilient member 64 is selected from the range of 7 degrees to 110 degrees, thereby making it easy to determine the angle settings of both driving resilient members.

[0067] Specifically, by setting the included angle between one driving elastic material and the target connection line, and the included angle T3 between both driving elastic materials, the included angle between the other driving elastic material and the target connection line can be determined.

[0068] The included angle T3 between the first driving elastic member 60 and the second driving elastic member 64 is selected from the range of 7 degrees to 110 degrees, and in one example, the included angle T3 can be 7 degrees, 10 degrees, 30 degrees, 50 degrees, 70 degrees, 90 degrees, 110 degrees, or other included angles between 7 degrees and 110 degrees.

[0069] In some embodiments, referring to FIG. 51, when the door body 12 is open, the resultant force F of the first driving elastic member 60 and the second driving elastic member 64 is located above the rotation center O of the driving lever 20.

[0070] 60, when the door body 12 is closed, the resultant force F of the first driving elastic member 60 and the second driving elastic member 64 is located below the rotation center O of the driving lever 20. This allows the driving lever 20 to rotate in different directions before and when the door is closed, which is advantageous for realizing tightly closing the door.

[0071] Specifically, referring to Fig. 51, the resultant force F of both drive elastic members on the drive lever 20 is located above the rotation center O of the drive lever 20, and the drive lever 20 can rotate in a first direction under the action of the resultant force of both drive elastic members. Referring to Fig. 60, the resultant force F of both drive elastic members on the drive lever 20 is located below the rotation center O of the drive lever 20, and the drive lever 20 can rotate in a second direction under the action of the resultant force F of both drive elastic members. The first direction is opposite to the second direction. In Fig. 51, the first direction is the counterclockwise direction, and in Fig. 60, the second direction is the clockwise direction.

[0072] When the lower door hook 28 is not in contact with the drive lever 20, the drive lever 20 is stationary and a resultant force F of both drive elastic members acts on the drive lever 20, allowing the drive lever 20 to rotate clockwise. When the lower door hook 28 is in contact with the drive lever 20 and the drive lever 20 rotates counterclockwise under the action of the lower door hook 28, the resultant force F of both drive elastic members on the drive lever 20 switches below the rotation center O of the drive lever 20, causing the drive lever 20 to rotate from the clockwise direction to the counterclockwise direction, but at this time the drive lever 20 continues to rotate counterclockwise under the action of the resultant force F of both drive elastic members without being restricted, accelerating the lower door hook 28.

[0073] The driving lever 20 has a process of changing the direction of rotation, which allows the rotation angle of the driving lever 20 to be increased. By increasing the rotation angle of the driving lever 20, the lower door hook 28 can be pulled deeper into the chamber body, and the door body 12 can be tighter when closed.

[0074] In some embodiments, when the door body 12 is open, the tangential component force F1 of the first driving elastic member 60 applies a rotational torque to the driving lever 20 to rotate it in a first direction, and the tangential component force F2 of the second driving elastic member 64 applies a rotational torque to the driving lever 20 to rotate it in a second direction, the first direction being opposite to the second direction, and the rotational torque applied by the first driving elastic member 60 being greater than the rotational torque applied by the second driving elastic member 64. This allows the driving lever 20 to rotate in the first direction.

[0075] 51, the first direction is the counterclockwise direction and the second direction is the clockwise direction. The resultant force F of both driving elastic members is located above the rotation center O of the driving lever 20, and can rotate the rotating lever 40 in the counterclockwise direction. As can be seen from FIG. 51, the tangential component force F1 of the first driving elastic member 60 applies a counterclockwise rotational torque to the driving lever 20, and the tangential component force F2 of the second driving elastic member 64 applies a clockwise rotational torque to the driving lever 20. Since the rotational torque applied by the first driving elastic member 60 is greater than the rotational torque applied by the second driving elastic member 64, the driving lever 20 can be rotated in the counterclockwise direction.

[0076] In some embodiments, when the door body 12 is closed, the tangential component force F1 of the first driving elastic member 60 applies a rotational torque to the driving lever 20 to rotate it in the second direction, and the tangential component force F2 of the second driving elastic member 64 applies a rotational torque to the driving lever 20 to rotate it in the second direction, the rotational torque applied by the second driving elastic member 64 being greater than the rotational torque applied by the first driving elastic member 60. This allows the door body 12 to be tightly closed.

[0077] Specifically, referring to FIG. 60, the second direction is a clockwise direction, and the rotational torque provided by both drive elastic members causes the drive lever 20 to rotate clockwise, so that the drive lever 20 can close the door body 12 more tightly via the lower door hook 28.

[0078] In this embodiment, the door closing process can be divided into three processes: door closing process 1, door closing process 2, and door closing process 3.

[0079] 46 to 51, at the start of process 1 of closing the door, at the moment when the lower door hook 28 comes into contact with the drive lever 20, as can be seen from Fig. 51, the resultant force F of both drive elastic members is located above the rotation center O of the drive lever 20, causing the drive lever 20 to rotate counterclockwise. As can be seen from Fig. 51, the tangential component force F1 of the first drive elastic member 60 applies a counterclockwise rotation torque to the drive lever 20, and the tangential component force F2 of the second drive elastic member 64 applies a clockwise rotation torque to the drive lever 20. Since the rotation torque applied by the first drive elastic member 60 is greater than the rotation torque applied by the second drive elastic member 64, the drive lever 20 can be rotated counterclockwise, but since the position is limited, the drive lever 20 remains stationary.

[0080] In the door closing process 2, the lower door hook 28 is driven by the drive lever 20 to move into the bracket 14 (this can be understood as "the lower door hook 28 is sucked in by the drive lever 20").

[0081] 52 to 56, the resultant force F of both drive elastic members is located below the rotation center O of the drive lever 20, and both drive elastic members are located below the rotation center O of the drive lever 20. At this time, both drive elastic members rotate the drive lever 20 clockwise. The tangential component forces applied by both drive elastic members are relatively small, and therefore the torque applied to the drive lever 20 is small. The length of the first drive elastic member 60 increases and then decreases from door closing process 1 to door closing process 2, and the elastic force increases and then decreases. The length of the second drive elastic member 64 decreases significantly from door closing process 1 to door closing process 2, and the elastic force also decreases. During this process, the second drive elastic member 64 contributes the majority of the rotational torque.

[0082] In the door closing process 3, the lower door hook 28 starts to push the drive lever 20 so as to rotate it.

[0083] 57 to 60, from door closing process 2 to door closing process 3, the resultant force F of both drive elastic members applies a much larger rotational torque to the drive lever 20. That is, until the door body 12 reaches the closed position, the rotational torque applied by the tangential component forces of both drive elastic members is much larger. The rotational torque contributed by the second drive elastic member 64 is large.

[0084] 61 and 62, as can be seen from the drawings, the change in length of both drive elastic members is small, and it can be approximately considered that the lengths do not change during the entire movement process, but only the direction of the force changes. Figure 61 shows the change in length of the first drive elastic member 60, where the length of the first drive elastic member 60 when the door body 12 is open is the radius of the middle ring, the length of the first drive elastic member 60 when the door body 12 is closing is the radius of the outermost ring, and the length of the first drive elastic member 60 when the door body 12 is closed is the radius of the innermost ring. Figure 62 shows the change in length of the second drive elastic member 64, where the length of the second drive elastic member 64 when the door body 12 is open is the radius of the outer ring, and the length of the second drive elastic member 64 when the door body 12 is closed is the radius of the inner ring.

[0085] 4, in some embodiments, the buffer assembly 16 further includes a pivoting lever 40, a switch is provided on the bracket 14, the pivoting lever 40 is pivotally connected to the bracket 14, and when the door body 12 is closed, the door hook abuts against the pivoting lever 40 so that the pivoting lever 40 triggers the switch. In this way, by increasing the pivoting lever 40, safety regulations can be met while noise during door closing can be further reduced.

[0086] Specifically, in some home appliances 100, the door body 12 must be closed before the home appliance 100 is allowed to operate. For example, in a microwave oven, in order to prevent a leaky wave phenomenon caused by the door not being tightly closed, the door body 12 must be closed before the microwave oven is allowed to irradiate microwaves into the chamber body to heat food.

[0087] When the door body 12 is closed, the lower door hook 28 abuts against the rotating lever 40 so that the rotating lever 40 triggers the switch, and the control panel of the home appliance 100 obtains a corresponding trigger signal to re-control the operation of the home appliance 100, thereby meeting the safety regulatory requirements.

[0088] During the process of closing the door body 12, the lower door hook 28 approaches the rotating lever 40, and when the lower door hook 28 abuts against the rotating lever 40, the rotating lever 40 can be rotated clockwise, and in this process the lower door hook 28 and the door body 12 can be decelerated, and further noise when closing the door can be reduced.

[0089] In some embodiments, referring to Figures 5, 6, and 42 to 45, the pivot lever 40 includes a pivot arm 42 pivotally connected to the bracket 14 and a contact arm 44 connecting the pivot arm 42. Referring to Figures 5, 6, and 30, a slot 46 is formed in the bracket 14, and the contact arm 44 is at least partially positioned in the slot 46, and the contact arm 44 is used to trigger the switch. This can protect the pivot lever 40 from being accidentally triggered, and can meet safety regulatory requirements.

[0090] Specifically, the contact arm 44 is spaced from the pivot axis of the pivot arm 42, and during the process of closing the door body 12, the lower door hook 28 enters the bracket 14 through the lower through-hole 48 of the front panel 51 connected to the bracket 14, pushing and rotating the contact arm 44, and further rotating the entire pivot lever 40. The contact arm 44 is at least partially located within the slot 46, which prevents a safety hazard caused by an external object such as a thin rod entering the bracket 14 through the lower through-hole 48 and pushing and rotating the contact arm 44, which could cause the home appliance 100 to mistakenly believe that the door body 12 is securely closed and subsequently start up.

[0091] In addition, a protruding block 50 having a shape that matches the shape of the slot 46 is provided on the inside of the protective cover 36 to surround the contact arm 44, which further ensures that the contact arm 44 is not accidentally triggered and makes the rotation of the contact arm 44 more stable.

[0092] 34 to 39, in some embodiments, the driving lever 20 includes a first arm 52 and a second arm 54 spaced apart from each other, and when the door body 12 is being closed, the door hook passes under the second arm 54 and then abuts against the first arm 52 to rotate the driving lever 20, and the contact arm 44 is provided with a protruding post 56, and the first arm 52 is provided with a notch 58, and when the door body 12 is being closed, the first arm 52 avoids the protruding post 56 by using the notch 58. In this way, it is ensured that the contact arm 44 of the rotating lever 40 can pass smoothly without interference.

[0093] 4, when the door body 12 is open, the first arm 52 and the second arm 54 are both located to the left of the protruding post 56. The first arm 52 is long, and during the process of closing the door body 12, the lower door hook 28 passes under the second arm 54 and enters the space between the first arm 52 and the second arm 54. The lower door hook 28 then abuts against the first arm 52, causing the drive lever 20 to rotate counterclockwise. During the process of rotating the drive lever 20, the second arm 54 engages with the lower door hook 28, causing the drive lever 20 to cause the lower door hook 28 to continue closing the door. The first arm 52 rotates toward the protruding post 56, and the notch 58 is provided so that the first arm 52 does not interfere with the protruding post 56 as it passes. This allows the lower door hook 28 to abut against the protruding post 56 and rotate the rotating lever 40 clockwise, allowing the door body 12 to be closed smoothly and the switch to be triggered smoothly. After the door body 12 is closed, the tail end of the lower door hook 28 and the protruding post 56 are positioned in the space between the first arm 52 and the second arm 54, as shown in FIG.

[0094] 30, in some embodiments, the bracket 14 is further provided with a stopper block 72 that shields at least a portion of the pivot arm 42. This can protect the pivot lever 40 from being accidentally triggered, thereby meeting safety regulatory requirements.

[0095] Specifically, during the process of closing the door body 12, the lower door hook 28 enters the bracket 14 through the lower through-hole 48 in the bracket 14, pushing and rotating the contact arm 44, and further rotating the entire rotating lever 40. The provision of the stopper block 72 that shields at least a portion of the rotating arm 42 makes it possible to prevent a safety hazard caused by an external object such as a thin rod entering the bracket 14 through the lower through-hole 48, pushing and rotating the rotating arm 42, and artificially triggering the switch, causing the home appliance 100 to mistakenly believe that the door body 12 is securely closed, which in turn causes the appliance to start up.

[0096] Also, referring to FIG. 20, a further stopper block 72 is provided inside the protective cover 36, and the shape of the stopper block 72 on the bracket 14 matches the shape of the stopper block 72 on the protective cover 36 so as to completely shield the pivot arm 42, thereby further ensuring that the pivot arm 42 is not accidentally triggered.

[0097] It should be understood that in other embodiments, the stop block 72 on the bracket 14 may completely shield the pivot arm 42 .

[0098] In some embodiments, the top surface of the stopper block 72 includes an inclined surface 74 for guiding the door hook so that it abuts against the contact arm 44 during the process of closing the door body 12. This ensures that the door hook enters the normal position and contacts the pivot lever 40 during the process of closing the door body 12.

[0099] Specifically, during the process of closing the door body 12, the lower door hook 28 moves toward the pivot lever 40, and when the lower door hook 28 reaches the inclined surface 74, the inclined surface 74 guides the tail end of the lower door hook 28 to the contact arm 44, allowing the lower door hook 28 to come into contact with the protruding post 56 of the contact arm 44.As the lower door hook 28 continues to move, the lower door hook 28 drives the pivot lever 40, which triggers the switch.

[0100] In some embodiments, the door hook includes a lower door hook 28 , the bracket 14 includes a first switch 76 , and the switch includes a second switch 78 and a third switch 80 .

[0101] The buffer assembly 16 is arranged so that, during the process of closing the door body 12, the drive lever 20 triggers the first switch 76 under the drive of the lower door hook 28, then the rotating lever 40 triggers the second switch 78 under the drive of the lower door hook 28, and then triggers the third switch 80. In this way, after the drive lever 20 triggers the first switch 76, the rotating lever 40 sequentially triggers the second switch 78 and the third switch 80, thereby sequentially triggering the first switch 76, the second switch 78, and the third switch 80, thereby avoiding the problem of the switches being triggered out of sequence.

[0102] Specifically, home appliance 100 may include a microwave oven, which includes a first switch 76, a second switch 78, and a third switch 80. First switch 76 may be a monitoring switch for monitoring the entire microwave oven circuit. Second switch 78 may be a secondary switch for controlling the on / off of a lamp, a heat dissipation fan, or other assemblies. Third switch 80 may be a primary switch for controlling the microwave function of the microwave oven. During the process of closing door body 12, first switch 76, second switch 78, and third switch 80 are triggered in sequence to generate corresponding electrical signals, allowing the microwave oven control panel to control the operation of the microwave oven.

[0103] The order in which the three switches are triggered during a user's use of the microwave is particularly important. When closing the door, the triggering order should be the monitoring switch first, then the secondary switch, and finally the primary switch. This ensures safe use and meets safety regulations.

[0104] It is understood that in other embodiments, the number of switches is not limited to three and may be other numbers of switches, and the number of switches and the trigger order are set according to actual practice and are not specifically limited here.

[0105] In some embodiments, the tail end of the door hook has a first guide surface 82.

[0106] 34 to 39, the driving lever 20 includes a first arm 52 and a second arm 54 spaced apart from each other, and a side of the second arm 54 has a second guide surface 84. During the process of closing the door body 12, the first guide surface 82 is connected in cooperation with the second guide surface 84 so that the second arm 54 engages with the door hook after the tail end of the door hook has bypassed the second arm 54. As a result, during the process of closing the door body 12, the first guide surface 82 and the second guide surface 84 are connected in cooperation with each other, and the tail end of the door hook has bypassed the second arm 54 so that the second arm 54 engages with the door hook. This realizes a structural design for forcibly closing the door, which does not require disassembly and repair after the driving lever 20 is abnormally triggered, and allows the user to forcibly close the door and then return it to normal.

[0107] 22 to 27, the lower door hook 28 is provided with a hook-shaped portion 86 at its tail end, which facilitates engagement. The lower door hook 28 includes a first guide surface 82 that can be installed on the hook-shaped portion 86, which makes it easier for the user to forcibly close the door so that the lower door hook 28 returns to a position where it normally engages with the drive lever 20.

[0108] When the door is closed normally, the lower door hook 28 contacts the first arm 52 of the drive lever 20 under a certain initial speed condition, allowing the lower door hook 28 to rotate the drive lever 20, triggering the first switch 76 after the drive lever 20 rotates, and then the second arm 54 of the drive lever 20 engages with the lower door hook 28 to allow the lower door hook 28 to continue closing the door, and the lower door hook 28 abuts against the contact arm 44 to rotate the rotating lever 40.

[0109] However, in real life, if a user or a child uses abnormal means to forcibly trigger the drive lever 20 (as shown in FIG. 69 ), for example, a thin object such as a bamboo skewer or a finger may be used to insert itself into the bracket 14 to move the drive lever 20, forcing the drive lever 20 to trigger and rotate, preventing the lower door hook 28 and the drive lever 20 from cooperating, preventing the door body 12 from closing, and ultimately causing the home appliance 100 to lose its functionality and even requiring disassembly and repair. In the home appliance 100 according to an embodiment of the present application, the tail end of the lower door hook 28 has a first guide surface 82, and the drive lever 20 includes a second guide surface 84, which are cooperating and connected, so that the tail end of the door hook can bypass the second arm 54 and then the second arm 54 can engage with the lower door hook 28. The user can use a large force to restore the normal cooperation between the lower door hook 28 and the drive lever 20, eliminating the need for disassembly and repair.

[0110] In one embodiment, the tail end of the lower door hook 28 can be forced to pass through the gap between the second arm 54 of the drive lever 20 and the bracket 14 due to the elastic deformation of the plastic. The first guide surface 82 and the second guide surface 84 may be inclined guide surfaces.

[0111] The principle process of the operation of opening and closing the door according to the embodiment of the present application will be described below.

[0112] The following explains the initial and final states. Initially (when the door is not closed), both drive elastic members connect the bracket 14 and the drive lever 20, and the resultant force F of both drive elastic members is located above the rotation center O of the drive lever 20. At this time, the resultant force F of the drive elastic members tends to rotate the drive lever 20 clockwise, and both drive elastic members maintain a tensioned state. At the same time, the drive lever 20 is restricted from moving clockwise by the stopper post 88 on the bracket 14, and the swing block 34 is connected to the damper 18 and the drive lever 20, respectively. The swing block 34 is free to swing around the drive lever 20, and the pressure spring 32 is always compressed. At the final state (after the door is opened), the lower door hook 28 pulls the drive lever 20 outward, at which point the angle between the swing block 34 and the drive lever 20 is maximized, moving the first drive elastic member 60, the second drive elastic member 64, and the damper 18. During the movement, when the resultant force F of both driving elastic members is located above the rotation center O of the driving lever 20, the resultant force F applied to the driving lever 20 by both driving elastic members is converted from a force rotating counterclockwise to a force rotating the driving lever 20 clockwise. After the lower door hook 28 is pulled out, the driving lever 20 actively rotates clockwise to its initial position, and at the same time, the first and second driving elastic members 60, 64 and the damper 18 return to their initial states.

[0113] (1) The process of gently closing the door to achieve a smooth / soft closing of the door. As shown in Figures 4 and 63 to 65, under certain initial velocity conditions, the lower door hook 28 first contacts the first arm 52 of the drive lever 20, causing the drive lever 20 to rotate counterclockwise around the rotation axis by a predetermined angle, and then coincides with the swing block 34. During this rotation, the damper 18 does not get in the way (i.e., the lower door hook 28 does not repeatedly collide with the first arm 52 and the second arm 54, causing a stagnation phenomenon, and there is no obvious rebound phenomenon after the lower door hook 28 collides with the first arm 52). At the same time, the resultant force F of both drive elastic members rotates the drive lever 20 downward from the rotation center O, causing the second arm 54 of the drive lever 20 to quickly contact the lower door hook 28.

[0114] As shown in Figure 65, when the resultant force F of both drive elastic members is located below the rotation center O of the drive lever 20, the resultant force F of both drive elastic members is converted into a force that rotates the drive lever 20 counterclockwise. Therefore, the drive lever 20 rotates the swing block 34 together, moving the lower door hook 28. At the same time, the upper door hook 26 enters the upper through-hole 90 of the front panel 51, and the tilt block 30 begins to be pushed down. The drive lever 20 first triggers the monitoring switch. Then, the tail end of the lower door hook 28 contacts the protruding post 56 of the contact arm 44 of the pivot lever 40, causing the pivot lever 40 to begin to rotate, triggering the secondary switch and the primary switch in sequence (the secondary switch overlaps above the primary switch). At the same time, the tail end of the upper door hook 26 pushes past the top of the tilt block 30, causing the tilt block 30 to begin to rise and abut against the left arc of the tail end of the upper door hook 26. When the movement stops, the door closing is finished.

[0115] (2) The process of opening the door to achieve a gentle / soft closing of the door. Referring to Figures 66 to 68 and Figure 4, under manual operation, the lower door hook 28 rotates the drive lever 20 clockwise. First, the lower door hook 28 disengages from the protruding post 56 of the contact arm 44 of the pivot lever 40, and the primary switch and secondary switch are sequentially deactivated. The upper door hook 26 then presses the inclined block 30 and moves outward until it is completely disengaged. The drive lever 20 then disengages from contact with the monitoring switch. During this process, the resultant force F of the two drive elastic members converts from a force rotating the drive lever 20 counterclockwise to a force rotating the drive lever 20 clockwise. After the lower door hook 28 is pulled out, the drive lever 20 actively rotates to its initial position. Finally, the first drive elastic member, the second drive elastic member 64, the inclined block 30, the pivot lever 40, and the damper 18 all return to their initial positions, completing the door opening process.

[0116] (3) The process of forcibly closing the door. As shown in Figure 69, the door is not closed, but the drive lever 20 is triggered. At this time, the door body 12 can be pushed hard to close the door, and the lower door hook 28 can return to its normal door-closing position. This is because the tail end of the lower door hook 28 can be forced to pass through the gap between the second arm 54 of the drive lever 20 and the bracket 14 due to the elastic deformation of the plastic. The two guide surfaces ensure that the door is forced to close smoothly.

[0117] 70 to 77, a home appliance 100 according to a second embodiment of the present application includes a door body 12, a bracket 14, and a buffer assembly 16. The door body 12 has a door hook. The door body 12 is pivotally connected to the bracket 14. The buffer assembly 16 is attached to the bracket 14 and includes a recoverable damper 18 and a drive lever 20. The drive lever 20 is pivotally connected to the bracket 14. The damper 18 includes a body 22 fixed to the bracket 14 and a rod 24 movably connected to the body 22.

[0118] When the door body 12 is closed, the door hook abuts against the drive lever 20 and compresses the damper 18. When the door body 12 is opened, the door hook disengages from the drive lever 20, the damper 18 returns to its natural length, and there is a gap between the rod 24 and the drive lever 20.

[0119] The home appliance 100 described above employs a recoverable damper 18, which eliminates the need for a swing block between the damper 18 and the drive lever 20, reducing the number of components and simplifying the movement process. In addition, in related art, a one-way damper is used, which is connected to a swing block. The one-way damper does not automatically return to its original length. The dimensions of the damper connected to the swing block are small, requiring high performance and increasing costs. The home appliance 100 according to an embodiment of the present application employs a recoverable damper 18. When the external force compressing the damper 18 is released, the recoverable damper 18 does not need to be connected to the drive lever 20 via a swing block and automatically returns to its original length. This allows for the use of a cheaper damper 18, thereby reducing component costs and facilitating maintenance.

[0120] Specifically, the home appliance 100 includes, but is not limited to, home appliances 100 having a door body 12, such as microwave ovens, ovens (including electric ovens, microwave ovens, and microwave steamer combination machines), steaming cabinets, dishwashers, and sterilization cabinets. The embodiments of the present application will be described using an example in which the home appliance 100 is a microwave oven. The description using an example in which the home appliance 100 is a microwave oven is for the purpose of making it easier to understand the implementation of the present application, and should not be understood as limiting the present application.

[0121] The door body 12 may be a double-glazed door body 12, or may be a leak-wave-proof glass door body 12. One advantage of using a glass door body 12 is that the user can easily observe the state of food inside the home appliance 100 from the outside. In addition, a handle can be provided on the outer surface of the door body 12, making it easier for the user to open and close the door.

[0122] The door hook may be made entirely of metal or plastic, or may be made of a combination of different materials. The door hook is elongated and has a hook-shaped portion 86 at its tail end for easy engagement. The number of door hooks may be determined according to actual circumstances. For example, the number of door hooks may be one or two or more. In the embodiment of the present application, the door hook includes two door hooks, an upper door hook 26 and a lower door hook 28, as shown in FIGS. 12 and 13 . In one embodiment, the upper door hook 26 and the lower door hook 28 may be connected to each other as an integral structural member and fixed to the door body 12. In another embodiment, the upper door hook 26 and the lower door hook 28 may be fixed to the door body 12 separately. This does not impose any specific limitations.

[0123] During the process of closing the door body 12, the lower door hook 28 mainly receives the buffering force of the buffer assembly 16, thereby reducing noise during door closing. That is, when the door body 12 is closed, the lower door hook 28 abuts against the drive lever 20 and compresses the rod 24. When the door body 12 is opened, the lower door hook 28 disengages from the drive lever 20, the damper 18 returns to its natural length, and a gap is formed between the rod 24 and the drive lever 20. In other embodiments, the upper door hook 26 may receive the buffering force of the buffer assembly 16 to reduce noise during door closing, or both the upper door hook 26 and the lower door hook 28 may receive the buffering force of the buffer assembly 16 to reduce noise during door closing; it should be understood that this is not particularly limited. In the following embodiments, an example in which the lower door hook 28 receives the buffering force of the buffer assembly 16 will be described.

[0124] 74 and 40 to 41, home appliance 100 further includes a tilting block 30 and a pressure spring 32, which are attached to bracket 14, with tilting block 30 having an internal storage space and pressure spring 32 partially housed in the storage space, with the top of pressure spring 32 abutting against the top wall of the storage space and the bottom of pressure spring 32 abutting against a support extending into the storage space in bracket 14. The top of tilting block 30 has an inclined surface 74 that slopes upward along a vertical plane toward inside bracket 14.

[0125] During the process of closing the door body 12, the tail end of the upper door hook 26 abuts against the inclined surface 74, causing the inclined block 30 to descend and compress the pressure spring 32, and when the tail end of the upper door hook 26 straddles the inclined surface 74, the inclined block 30 engages with the upper door hook 26 under the action of the pressure spring 32.

[0126] During the process of opening the door body 12, the upper door hook 26 presses the inclined block 30 to move it downward, and then moves it outward until the upper door hook 26 is completely released. The pressure spring 32 returns the inclined block 30 to its original position.

[0127] The home appliance 100 includes a chamber body (not shown), a bracket 14 can be fixed to the chamber body, and a door body 12 is rotatably connected to the chamber body. The chamber body has a chamber with an opening on the front side, and the door body 12 is used to open and close the opening. Food to be heated can be placed inside the chamber.

[0128] The body 22 of the damper 18 is fixed to the bracket 14, so that the body 22 is fixed and does not move during the process of opening or closing the door body 12. During the process of closing the door body 12, the lower door hook 28 pushes the drive lever 20 to rotate counterclockwise. After the drive lever 20 rotates a certain angle (there is no longer a gap between the drive lever 20 and the rod 24), it comes into contact with the rod 24 and pushes it into the body 22. The body 22 applies a damping force to the rod 24, reducing the speed at which the door body 12 closes and further reducing noise during door closing. During the process of opening the door body 12, the lower door hook 28 rotates the drive lever 20 clockwise, and the rod 24 is driven by the body 22 to extend outward until it disengages from the drive lever 20 and the damper 18 returns to its natural length. At this time, the damper 18 is in its natural length state. The damper 18 being in its natural length state can be understood to be the state of the damper 18 when the rod 24 is not subjected to any force if the damper 18 is not damaged, or the state of the damper 18 when the force acting on the rod 24 is not sufficient to move the rod 24 into the body 22.

[0129] Furthermore, the lower door hook 28 is separated from the driving lever 20, and there is a gap between the rod 24 and the driving lever 20. During the process of closing the door body 12, the lower door hook 28 first contacts the driving lever 20 under certain initial speed conditions, allowing the driving lever 20 to rotate counterclockwise around the rotation axis. During this small process, the damper 18 does not get in the way due to the existence of the gap, so that there is no obvious rebound phenomenon after the lower door hook 28 collides with the driving lever 20, and the lower door hook 28 is prevented from repeatedly colliding with the cavity of the driving lever 20 and causing stagnation.

[0130] In some embodiments, referring to Figure 83, the bracket 14 is provided with a receiving groove 34, and the body 22 is at least partially secured in the receiving groove 34. This can facilitate the installation of the damper 18.

[0131] Specifically, the body 22 may be cylindrical, and in one embodiment, a portion of the body 22 may be positioned within the receiving groove 34. When installing the damper 18, the body 22 may be placed within the receiving groove 34 in the bracket 14, making installation of the damper 18 easier.

[0132] 70 and 79 to 82, the bracket 14 is provided with a protective cover 36 having another accommodation groove 34 that can accommodate another portion of the main body 22, and when the protective cover 36 is connected to the bracket 14, the two accommodation grooves 34 surround and accommodate the main body 22, thereby further fixing the main body 22. In one embodiment, the bracket 14 and the protective cover 36 can be connected with a snap fit.

[0133] 85, in some embodiments, the bracket 14 is provided with a limiting post 38 that abuts against the driving lever 20 when the door body 12 is closed to limit the rotation of the driving lever 20. In this way, the rotation range of the driving lever 20 can be limited, and damage to the driving lever 20 can be prevented.

[0134] Specifically, the position of the limit post 38 can be set so that the rotation of the drive lever 20 does not exceed the position of the limit post 38. This position is the position where the drive lever 20 can rotate after the door is closed.

[0135] In some embodiments, the buffer assembly 16 further includes a pivoting lever 40, a switch is provided on the bracket 14, the pivoting lever 40 is pivotally connected to the bracket 14, and when the door body 12 is closed, the door hook abuts against the pivoting lever 40 so that the pivoting lever 40 triggers the switch. In this way, by increasing the pivoting lever 40, safety regulations can be met while noise during door closing can be further reduced.

[0136] Specifically, in some home appliances 100, the door body 12 must be closed before the home appliance 100 is allowed to operate. For example, in a microwave oven, in order to prevent a leaky wave phenomenon caused by the door not being tightly closed, the door body 12 must be closed before the microwave oven is allowed to irradiate microwaves into the chamber body to heat food.

[0137] When the door body 12 is closed, the lower door hook 28 abuts against the rotating lever 40 so that the rotating lever 40 triggers the switch, and the control panel of the home appliance 100 obtains a corresponding trigger signal to re-control the operation of the home appliance 100, thereby meeting the safety regulatory requirements.

[0138] During the process of closing the door body 12, the lower door hook 28 approaches the rotating lever 40, and when the lower door hook 28 abuts against the rotating lever 40, the rotating lever 40 can be rotated clockwise, and in this process the lower door hook 28 and the door body 12 can be decelerated, and further noise when closing the door can be reduced.

[0139] 42 to 45, in some embodiments, the pivot lever 40 includes a pivot arm 42 pivotally connected to the bracket 14 and a contact arm 44 connecting the pivot arm 42. Referring to FIG. 88, a slot 46 is formed in the bracket 14, and the contact arm 44 is at least partially positioned within the slot 46, and the contact arm 44 is used to trigger a switch. This can protect the pivot lever 40 from being accidentally triggered, and can meet safety regulatory requirements.

[0140] Specifically, the contact arm 44 is spaced from the pivot axis of the pivot arm 42, and during the process of closing the door body 12, the lower door hook 28 enters the bracket 14 through the lower through-hole 48 of the front panel 51 connected to the bracket 14, pushing and rotating the contact arm 44, and further rotating the entire pivot lever 40. The contact arm 44 is at least partially located within the slot 46, which prevents an external object such as a thin rod from extending through the lower through-hole 48 into the bracket 14, pushing and rotating the contact arm 44, and artificially triggering the switch, causing the home appliance 100 to mistakenly believe that the door body 12 is securely closed and ultimately starting up, which could pose a safety hazard.

[0141] In addition, a protruding block 50 having a shape that matches the shape of the slot 46 is provided on the inside of the protective cover 36 to surround the contact arm 44, which further ensures that the contact arm 44 is not accidentally triggered and makes the rotation of the contact arm 44 more stable.

[0142] 89-94, in some embodiments, the driving lever 20 includes a first arm 52 and a second arm 54 spaced apart from each other, and when the door body 12 is being closed, the door hook passes under the second arm 54 and then abuts against the first arm 52 to rotate the driving lever 20, and the contact arm 44 is provided with a protruding post 56, and the first arm 52 is provided with a notch 58, and when the door body 12 is being closed, the first arm 52 avoids the protruding post 56 by using the notch 58. In this way, it is ensured that the contact arm 44 of the rotating lever 40 can pass smoothly without interference.

[0143] 73, when the door body 12 is open, the first arm 52 and the second arm 54 are both located to the left of the protruding post 56. The first arm 52 is long, and during the process of closing the door body 12, the lower door hook 28 passes under the second arm 54 and enters the space between the first arm 52 and the second arm 54. The lower door hook 28 then abuts against the first arm 52, causing the drive lever 20 to rotate counterclockwise. During the process of rotating the drive lever 20, the second arm 54 engages with the lower door hook 28, causing the drive lever 20 to cause the lower door hook 28 to continue closing the door. The first arm 52 rotates toward the protruding post 56, and the notch 58 is provided so that the first arm 52 does not interfere with the protruding post 56 as it passes. This allows the lower door hook 28 to abut against the protruding post 56 and rotate the rotating lever 40 clockwise, allowing the door body 12 to be closed smoothly and the switch to be triggered smoothly. After the door body 12 is closed, the tail end of the lower door hook 28 and the protruding post 56 are positioned in the space between the first arm 52 and the second arm 54, as shown in FIG.

[0144] 72 and 77, in one embodiment, the buffer assembly 16 further includes a first driving elastic member 60 and a second driving elastic member 64, and the angle formed between the two driving elastic members is an acute angle. The driving elastic members and the driving lever 20 are located on opposite sides of the bracket 14 having a through-hole 66, as shown in FIGS. 86 to 87, and the driving lever 20 connects the two driving elastic members through the through-hole 66. The two driving elastic members are used to accelerate the rotation of the driving lever 20 so that the driving lever 20 accelerates the door body 12. This allows the lower door hook 28 to be accelerated and then decelerated.

[0145] 99 and 100, in one embodiment, the buffer assembly 16 further includes a single driving elastic member 65, the single driving elastic member 65 and the driving lever 20 are located on opposite sides of the bracket 14 having a through-hole 66, the driving lever 20 is connected to the single driving elastic member through the through-hole 66, and the single driving elastic member 65 is used to accelerate the rotation of the driving lever 20 so that the driving lever 20 accelerates the door body 12. This allows the lower door hook 28 to be accelerated and then decelerated.

[0146] In the illustrated embodiment, the drive resilient material is a drive spring, however, in other embodiments, the drive resilient material is not limited to a spring and may be a resilient material of other configurations.

[0147] It is understood that in other embodiments, the number of drive resilient members included in the buffer assembly 16 is not limited to two or one, but may be other numbers of resilient members and is not specifically limited herein.

[0148] The drive elastic members and drive levers 20 located on opposite sides of the bracket 14 allow the related structural members to be distributed, thereby avoiding the disadvantages of having too many structural members on the same side of the bracket 14, which reduces space and over-concentrates weight, which is detrimental to the placement of the structural members.

[0149] The driving elastic member may apply a pulling force to the driving lever 20 so that the driving lever 20 accelerates the lower door hook 28, or may apply a thrust force to the driving lever 20 so that the driving lever 20 accelerates the lower door hook 28. In this embodiment, the driving elastic member can apply a pulling force to the driving lever 20 so that the driving lever 20 accelerates the lower door hook 28.

[0150] The drive lever 20 can accelerate the lower door hook 28, so that during the acceleration phase, the door body 12 can be closed by the biasing force of the drive lever 20. As the lower door hook 28 accelerates, the drive lever 20 rotates and then the damper 18 is compressed. As the door closing process continues, the drive lever 20 continues to compress the rod 24 of the damper 18, increasing the amount of compression of the damper 18 and the damping force applied. When the damping force applied by the damper 18 becomes greater than the driving force applied by the drive elastic member, the lower door hook 28 begins to decelerate, preventing excessive noise when closing the door body 12 during the deceleration phase. In the embodiment of the present application, when the rod 24 of the damper 18 is compressed, the body 22 is fixed and does not move.

[0151] The first driving elastic member 60 is positioned above and drives the second driving elastic member 64. Referring to Figure 86, the first driving elastic member 60 has one end engaged with a positioning post 68 on the bracket 14 and the other end engaged with a connecting portion 70 on the driving lever 20. The second driving elastic member 64 has one end engaged with another positioning post 68 on the bracket 14 and the other end engaged with the connecting portion 70. The angle between the first driving elastic member 60 and the second driving elastic member 64 is an acute angle, and the acute angle may be an angle of degrees, degrees, degrees, or the like, but is not particularly limited here.

[0152] It is understood that in other embodiments, the number of driving elastics is not limited to two, but may be one or other number of driving elastics greater than two, and is not specifically limited herein.

[0153] 85, in some embodiments, the bracket 14 is further provided with a stopper block 72 that shields at least a portion of the pivot arm 42. This can protect the pivot lever 40 from being accidentally triggered, thereby meeting the safety F regulation requirements.

[0154] Specifically, during the process of closing the door body 12, the lower door hook 28 enters the bracket 14 through the lower through-hole 48 in the bracket 14, pushing and rotating the contact arm 44, and further rotating the entire rotating lever 40. The provision of the stopper block 72 that shields at least a portion of the rotating arm 42 makes it possible to prevent a safety hazard caused by an external object such as a thin rod entering the bracket 14 through the lower through-hole 48, pushing and rotating the rotating arm 42, and artificially triggering the switch, causing the home appliance 100 to mistakenly believe that the door body 12 is securely closed, which in turn causes the appliance to start up.

[0155] Also, referring to Figure 82, another stopper block 72 is provided inside the protective cover 36, and the shape of the stopper block 72 on the bracket 14 matches the shape of the stopper block 72 on the protective cover 36 so as to completely shield the rotating arm 42, further ensuring that the rotating arm 42 is not accidentally triggered.

[0156] It should be understood that in other embodiments, the stop block 72 on the bracket 14 may completely shield the pivot arm 42 .

[0157] In some embodiments, the top surface of the stopper block 72 includes an inclined surface 74 for guiding the door hook so that it abuts against the contact arm 44 during the process of closing the door body 12. This ensures that the door hook enters the normal position and contacts the pivot lever 40 during the process of closing the door body 12.

[0158] Specifically, during the process of closing the door body 12, the lower door hook 28 moves toward the pivot lever 40, and when the lower door hook 28 reaches the inclined surface 74, the inclined surface 74 guides the tail end of the lower door hook 28 to the contact arm 44, allowing the lower door hook 28 to come into contact with the protruding post 56 of the contact arm 44.As the lower door hook 28 continues to move, the lower door hook 28 drives the pivot lever 40, which triggers the switch.

[0159] In some embodiments, the door hook includes a lower door hook 28 , the bracket 14 includes a first switch 76 , and the switch includes a second switch 78 and a third switch 80 .

[0160] The buffer assembly 16 is arranged so that, during the process of closing the door body 12, the drive lever 20 triggers the first switch 76 under the drive of the lower door hook 28, then the rotating lever 40 triggers the second switch 78 under the drive of the lower door hook 28, and then triggers the third switch 80. In this way, after the drive lever 20 triggers the first switch 76, the rotating lever 40 sequentially triggers the second switch 78 and the third switch 80, thereby sequentially triggering the first switch 76, the second switch 78, and the third switch 80, thereby avoiding the problem of the switches being triggered out of sequence.

[0161] Specifically, home appliance 100 may include a microwave oven, which includes a first switch 76, a second switch 78, and a third switch 80. First switch 76 may be a monitoring switch for monitoring the entire microwave oven circuit. Second switch 78 may be a secondary switch for controlling the on / off of a lamp, a heat dissipation fan, or other assemblies. Third switch 80 may be a primary switch for controlling the microwave function of the microwave oven. During the process of closing door body 12, first switch 76, second switch 78, and third switch 80 are triggered in sequence to generate corresponding electrical signals, allowing the microwave oven control panel to control the operation of the microwave oven.

[0162] The order in which the three switches are triggered during a user's use of the microwave is particularly important. When closing the door, the triggering order should be the monitoring switch first, then the secondary switch, and finally the primary switch. This ensures safe use and meets safety regulations.

[0163] It is understood that in other embodiments, the number of switches is not limited to three and may be other numbers of switches, and the number of switches and the trigger order are set according to actual practice and are not specifically limited here.

[0164] In some embodiments, the tail end of the door hook has a first guide surface 82. See FIGS. 89 to 94 . The drive lever 20 includes a first arm 52 and a second arm 54 spaced apart from each other. The side of the second arm 54 has a second guide surface 84. During the process of closing the door body 12, the first guide surface 82 is connected in cooperation with the second guide surface 84 so that the second arm 54 engages with the door hook after the tail end of the door hook bypasses the second arm 54. As a result, during the process of closing the door body 12, the first guide surface 82 and the second guide surface 84 are connected in cooperation with each other, so that the tail end of the door hook bypasses the second arm 54 and the second arm 54 engages with the door hook. This realizes a structural design for forcibly closing a door that does not require disassembly and repair after the drive lever 20 is abnormally triggered, and allows the user to forcibly close the door and then return it to normal.

[0165] 22 to 27, the lower door hook 28 is provided with a hook-shaped portion 86 at its tail end, which facilitates engagement. The lower door hook 28 includes a first guide surface 82 that can be installed on the hook-shaped portion 86, which makes it easier for the user to forcibly close the door so that the lower door hook 28 returns to a position where it normally engages with the drive lever 20.

[0166] When the door is closed normally, the lower door hook 28 contacts the first arm 52 of the drive lever 20 under a certain initial speed condition, allowing the lower door hook 28 to rotate the drive lever 20, triggering the first switch 76 after the drive lever 20 rotates, and then the second arm 54 of the drive lever 20 engages with the lower door hook 28 to allow the lower door hook 28 to continue closing the door, and the lower door hook 28 abuts against the contact arm 44 to rotate the rotating lever 40.

[0167] However, in real life, if a user or a child uses abnormal means to forcibly trigger the drive lever 20 (as shown in FIG. 98), for example, a thin object such as a bamboo skewer or a finger may be used to insert itself into the bracket 14 to move the drive lever 20, forcing it to trigger and rotate, preventing the lower door hook 28 and the drive lever 20 from cooperating, preventing the door body 12 from closing, and ultimately causing the home appliance 100 to lose its functionality and even requiring disassembly and repair. In the home appliance 100 according to an embodiment of the present application, the tail end of the lower door hook 28 has a first guide surface 82, and the drive lever 20 includes a second guide surface 84, with the first guide surface 82 and the second guide surface 84 cooperating and connected, so that the tail end of the door hook bypasses the second arm 54 and the second arm 54 can engage with the lower door hook 28. The user can use a large force to restore the normal cooperation between the lower door hook 28 and the drive lever 20, eliminating the need for disassembly and repair.

[0168] In one embodiment, the tail end of the lower door hook 28 can be forced to pass through the gap between the second arm 54 of the drive lever 20 and the bracket 14 due to the elastic deformation of the plastic. The first guide surface 82 and the second guide surface 84 may be inclined guide surfaces.

[0169] The principle process of the operation of opening and closing the door according to the embodiment of the present application will be described below.

[0170] In the embodiment of the two drive elastic members, the initial and final states are described. Initially (when the door is not closed), both drive elastic members connect the bracket 14 and the drive lever 20, and the resultant force of both drive elastic members is positioned above the pivot axis of the drive lever 20. At this time, the biasing force (resultant force) of the drive elastic members tends to rotate the drive lever 20 clockwise, and both drive elastic members maintain a tensioned state. At the same time, the drive lever 20 is restricted from moving clockwise by the stopper post 88 on the bracket 14, and the pressure spring 32 is always compressed. There is a gap between the rod 24 of the damper 18 and the drive lever 20, and they do not come into direct contact. At the final state (after the door is opened), the lower door hook 28 pulls the drive lever 20 outward, moving the first drive elastic member 60 and the second drive elastic member 64. During the movement, when the resultant force of both drive elastic members is located above the rotation axis of the drive lever 20, the force applied by the drive elastic members to the drive lever 20 is converted from a force rotating counterclockwise to a force rotating the drive lever 20 clockwise. After the lower door hook 28 is pulled out, the drive lever 20 rotates clockwise to its initial position, and at the same time, the first and second drive elastic members 64 and the damper 18 return to their final states. As the drive lever 20 rotates clockwise, the damper 18 extends together with the rod 24 until it returns to its original length.

[0171] In the embodiment of the single driving elastic member, the initial and final states are described. Initially (when the door is not closed), the single driving elastic member connects the bracket 14 and the driving lever 20, and the driving elastic member's biasing force is positioned above the pivot axis of the driving lever 20. At this time, the driving lever 20 tends to rotate clockwise due to the biasing force of the driving elastic member, and the driving elastic member maintains a tensioned state. At the same time, the clockwise movement of the driving lever 20 is restricted by the stopper post 88 on the bracket 14, and the pressure spring 32 is always compressed. There is a gap between the rod 24 of the damper 18 and the driving lever 20, and they do not come into direct contact. At the final state (after the door is opened), the lower door hook 28 pulls the driving lever 20 outward, moving the single driving elastic member. During the movement process, when the biasing force of the single driving elastic member is located above the rotation axis of the driving lever 20, the force applied by the driving elastic member to the driving lever 20 is converted from a force rotating counterclockwise to a force rotating the driving lever 20 clockwise. After the lower door hook 28 is pulled out, the driving lever 20 rotates clockwise to its initial position, and at the same time, the single driving elastic member and the damper 18 return to their final states. As the driving lever 20 rotates clockwise, the damper 18 extends together with the rod 24 until it returns to its original length.

[0172] (1) The process of gently closing the door to achieve a smooth / soft closing of the door. As shown in Figures 70 and 95 to 97, in the embodiment using both drive elastic members, under a certain initial velocity condition, the lower door hook 28 first contacts the first arm 52 of the drive lever 20, causing the drive lever 20 to rotate counterclockwise around the rotation axis by a certain angle. During this rotation, the damper 18 does not get in the way (i.e., the lower door hook 28 does not repeatedly collide with the gap between the first arm 52 and the second arm 54, causing a stagnation phenomenon, and there is no obvious rebound phenomenon after the lower door hook 28 collides with the first arm 52). At the same time, the resultant force of both drive elastic members rotates the drive lever 20 downward from the rotation axis, causing the second arm 54 of the drive lever 20 to quickly contact the lower door hook 28. When the resultant force of the two drive elastic members is positioned below the pivot axis of the drive lever 20, the resultant force of the two drive elastic members is converted into a force that rotates the drive lever 20 counterclockwise, moving the lower door hook 28. The drive lever 20 begins to contact the damper 18, and the damper begins to function. At the same time, the upper door hook 26 enters the upper through-hole 90 of the front panel 51 and begins to press down on the tilt block 30. The drive lever 20 first triggers the monitoring switch. Then, the tail end of the lower door hook 28 contacts the protruding post 56 of the contact arm 44 of the pivot lever 40, causing the pivot lever 40 to begin rotating, triggering the secondary switch and the primary switch in sequence (the secondary switch overlaps above the primary switch). At the same time, the tail end of the upper door hook 26 pushes past the top of the tilt block 30, causing the tilt block 30 to begin rising and abut against the left arc of the tail end of the upper door hook 26. When the movement stops, the door closing is finished.

[0173] As shown in Figures 70 and 101, in the embodiment of the single-acting elastic member, under a certain initial velocity condition, the lower door hook 28 first contacts the first arm 52 of the driving lever 20, causing the driving lever 20 to rotate counterclockwise around the pivot axis by a certain angle. During this rotation, the damper 18 does not get in the way (i.e., the lower door hook 28 does not repeatedly collide with the gap between the first arm 52 and the second arm 54, causing stagnation, and there is no obvious rebound after the lower door hook 28 collides with the first arm 52). At the same time, the biasing force of the single-acting elastic member rotates the driving lever 20 downward from the pivot axis, causing the second arm 54 of the driving lever 20 to quickly contact the lower door hook 28. When the biasing force of the single driving elastic member is positioned below the pivot axis of the driving lever 20, the biasing force of the driving elastic member is converted into a force that rotates the driving lever 20 counterclockwise, moving the lower door hook 28. The driving lever 20 begins to contact the damper 18, and the damper begins to function. At the same time, the upper door hook 26 enters the upper through-hole 90 and begins to push down the tilt block 30. The driving lever 20 first triggers the monitoring switch. Then, the tail end of the lower door hook 28 contacts the protruding post 56 of the contact arm 44 of the pivot lever 40, causing the pivot lever 40 to begin to rotate, triggering the secondary switch and the primary switch sequentially (the secondary switch overlaps above the primary switch). At the same time, the tail end of the upper door hook 26 pushes past the top of the tilt block 30, causing the tilt block 30 to begin rising and abut against the left arc of the tail end of the upper door hook 26. When the movement stops, the door closing is finished.

[0174] (2) The process of opening the door to achieve a gentle / soft closing of the door. 95-97, 101, and 70, under manual operation, the lower door hook 28 rotates the drive lever 20 clockwise. First, the lower door hook 28 disengages from the protruding post 56 of the contact arm 44 of the pivot lever 40, causing the primary switch and secondary switch to sequentially turn off. The upper door hook 26 then presses the tilt block 30 and moves outward until it is completely disengaged. The drive lever 20 then disengages from contact with the monitoring switch. During this process, the biasing force of the drive elastic member is converted from a force rotating the drive lever 20 counterclockwise to a force rotating the drive lever 20 clockwise. After the lower door hook 28 is pulled out, the drive lever 20 actively rotates to its initial position. Finally, the first drive elastic member, the second drive elastic member 64, the tilt block 30, the pivot lever 40, and the damper 18 all return to their initial positions, completing the door opening process.

[0175] (3) The process of forcibly closing the door. As shown in Figure 98, the door is not closed, but the drive lever 20 is triggered. At this time, the door body 12 can be pushed hard to close the door, and the lower door hook 28 can return to its normal door-closing position. This is because the tail end of the lower door hook 28 can be forced to pass through the gap between the second arm 54 of the drive lever 20 and the bracket 14 due to the elastic deformation of the plastic. The two guide surfaces ensure that the door is forced to close smoothly.

[0176] In the description of this application, references to "one embodiment," "some embodiments," "exemplary embodiments," "examples," "particular examples," or "some examples" mean that the particular feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In the description of this application, general references to the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0177] Although embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents. [Explanation of symbols]

[0178] 12 Door body 14 Bracket 16 Buffer assembly 18 Damper 20 Drive lever 22 Main Unit 24 rods 26 Upper door hook 28 Lower door hook 30 Inclined Block 34 Swing Block 35 Storage groove 36 Protective cover 37 Rotation Space 38 Restricted Post 39 Swinging Space 40 Rotating lever 41 Connection rotation part 42 Rotating arm 43 Convexity 44 contact arm 45 Open groove 46 slots 48 Lower through hole 50 Protruding Block 51 Front panel 52 First Arm 54 Second Arm 56 Protruding post 60 First driving elastic member 64 Second driving elastic member 65 Single-drive elastic material 66 Through hole 68 Positioning post 70 Connection 72 Stopper block 74 Slope 76 First Switch 78 Second Switch 80 Third Switch 82 First guide surface 84 Second guide surface 86 Hook-shaped part 88 Stopper post 90 Upper through hole 100 Home appliances F resultant force F1 Tangential force F2 Tangential force L1 First connection L2 Second wiring O Rotation center T1 Enclosing angle T2 Enclosing angle T3 Enclosing angle

Claims

1. A home appliance, A bracket and a door body pivotably connected to the bracket and having a door hook; a shock absorber assembly attached to the bracket, the shock absorber assembly including a first drive resilient member, a second drive resilient member, a damper, and a drive lever, the damper being movably connected to the drive lever, the drive lever being provided with a connection portion, and the first drive resilient member and the second drive resilient member being connected to the connection portion; When the door body is open, the door hook disengages from the drive lever, an included angle between the first drive elastic member and a first connecting wire is selected from a range of 0 to 60 degrees, an included angle between the second drive elastic member and a second connecting wire is selected from a range of 0 to 60 degrees, the first connecting wire is a line connecting a first connecting point formed between the first drive elastic member and the connecting portion and a rotation center of the drive lever, and the second connecting wire is a line connecting a second connecting point formed between the second drive elastic member and the connecting portion and a rotation center of the drive lever, When the door body is closed, the door hook abuts against the drive lever and presses the damper, The tail end of the door hook has a first guide surface, The drive lever includes a first arm and a second arm spaced apart, and a side surface of the second arm in the thickness direction has an inclined second guide surface, and during the process of closing the door body, the first guide surface contacts and guides the second guide surface so that the second arm engages with the door hook after the tail end of the door hook has bypassed the second arm, and the tail end of the door hook is configured to bypass the second arm.

2. The household appliance according to claim 1, wherein when the door body is open, an included angle between the first driving elastic member and the second driving elastic member is selected from a range of 7 degrees to 110 degrees.

3. When the door body is open, the resultant force of the first driving elastic member and the second driving elastic member is located above the rotation center of the driving lever, The home appliance according to claim 1 or 2, characterized in that when the door body is closed, the resultant force of the first driving elastic member and the second driving elastic member is located below the rotation center of the driving lever.

4. The home appliance according to claim 1 or 2, characterized in that, when the door body is open, a tangential component of the first driving elastic member applies a rotational torque to the driving lever to rotate it in a first direction, and a tangential component of the second driving elastic member applies a rotational torque to the driving lever to rotate it in a second direction, the first direction being opposite to the second direction, and the rotational torque applied by the first driving elastic member is greater than the rotational torque applied by the second driving elastic member.

5. The home appliance according to claim 1 or 2, characterized in that, when the door body is closed, a tangential component of the first driving elastic material applies a rotational torque to the driving lever to rotate it in a second direction, a tangential component of the second driving elastic material applies a rotational torque to the driving lever to rotate it in the second direction, and the rotational torque applied by the second driving elastic material is greater than the rotational torque applied by the first driving elastic material.

6. The buffer assembly further includes a pivot lever, a switch is provided on the bracket, the pivot lever is pivotally connected to the bracket, 3. The home appliance according to claim 1, wherein the door hook abuts against the pivot lever so that the pivot lever triggers the switch when the door body is closed.

7. 7. The home appliance of claim 6, wherein the pivot lever includes a pivot arm pivotally connected to the bracket and a contact arm connecting the pivot arm, the bracket having a slot formed therein, the contact arm being at least partially positioned within the slot, and the contact arm being used to trigger the switch.

8. The drive lever includes a first arm and a second arm spaced apart from each other, and during the process of closing the door body, after the door hook passes under the second arm, the door hook abuts against the first arm so as to rotate the drive lever, The contact arm is provided with a protruding post; The home appliance according to claim 7, wherein the first arm is provided with a notch, and the first arm avoids the protruding post by using the notch during the process of closing the door body.

9. The household electrical appliance according to claim 7, wherein the bracket is further provided with a stopper block that shields at least a part of the pivot arm.

10. A home appliance, a door body having a door hook; a bracket rotatably connected to the door body; a shock absorber assembly mounted on the bracket and including a recoverable damper and a drive lever, the drive lever pivotally connected to the bracket, the damper including a body fixed to the bracket and a rod movably connected to the body; When the door body is closed, the door hook abuts against the drive lever to compress the rod, When the door body is open, the door hook is disengaged from the drive lever, the damper is in a natural length state, and there is a gap between the rod and the drive lever, The tail end of the door hook has a first guide surface, The drive lever includes a first arm and a second arm spaced apart, and a side surface of the second arm in the thickness direction has an inclined second guide surface, and during the process of closing the door body, the first guide surface contacts and guides the second guide surface so that the second arm engages with the door hook after the tail end of the door hook has bypassed the second arm, and the tail end of the door hook is configured to bypass the second arm.

11. The household electrical appliance according to claim 10, wherein the bracket is provided with a receiving groove, and the main body is at least partially fixed in the receiving groove.

12. The home appliance according to claim 10 or 11, characterized in that the bracket is provided with a limiting post that abuts against the drive lever when the door body is closed to limit the rotation of the drive lever.

13. The buffer assembly further includes a pivot lever, a switch is provided on the bracket, the pivot lever is pivotally connected to the bracket, 12. The home appliance according to claim 10 or 11, wherein when the door body is closed, the door hook abuts against the pivot lever so that the pivot lever triggers the switch.

14. 14. The home appliance of claim 13, wherein the pivot lever includes a pivot arm pivotally connected to the bracket and a contact arm connecting the pivot arm, the bracket having a slot formed therein, the contact arm being at least partially positioned within the slot, and the contact arm being used to trigger the switch.

15. The drive lever includes a first arm and a second arm spaced apart from each other, and during the process of closing the door body, after the door hook passes under the second arm, the door hook abuts against the first arm so as to rotate the drive lever, The contact arm is provided with a protruding post; The home appliance according to claim 14, wherein the first arm is provided with a notch, and the first arm avoids the protruding post by using the notch during the process of closing the door body.

16. The household electrical appliance according to claim 14, wherein the bracket is further provided with a stopper block that shields at least a part of the pivot arm.

17. The home appliance according to claim 16, wherein a top surface of the stopper block includes an inclined surface for guiding the door hook so that the door hook abuts against the contact arm during the process of closing the door body.

18. The door hook includes a lower door hook, and a first switch is provided on the bracket, and the switch includes a second switch and a third switch; 14. The home appliance according to claim 13, wherein the buffer assembly is arranged so that, during the process of closing the door body, the driving lever first triggers the first switch under the driving of the lower door hook, and then the rotating lever triggers the second switch under the driving of the lower door hook, and then triggers the third switch.

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