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 the Chinese patent application numbers "202221380557.9" and "202221392217.8" filed on June 1, 2022 by Guangdong Midea Kitchen Appliance Manufacturing Co., Ltd. and Midea Group Co., Ltd., 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, 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 is disposed in the chamber body, and the door body is pivotally connected to the chamber body to open and close the chamber. In order 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 driving spring, and the driving spring provides an acceleration force for closing the door to the door body through a driving lever. Therefore, it is necessary to provide a technology for designing the driving force of the driving spring. 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 home appliance according to a first embodiment of the present application includes a bracket, a door body rotatably connected to the bracket and having a door hook, and a buffer assembly attached to the bracket, the buffer assembly including 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, and the first driving elastic member and the second driving elastic member being connected to the connection portion, and when the door body is opened, the door hook is released from the driving lever. the first driving elastic material and the first connection wire are selected from a range of 0 degrees to 60 degrees, the second driving elastic material and the second connection wire are selected from a range of 0 degrees to 60 degrees, the first connection wire is a line connecting a first connection point formed by the first driving elastic material and the connection portion and the rotation center of the driving lever, and the second connection wire is a line connecting a second connection point formed by the second driving elastic material and the connection portion and the rotation center of the driving lever, and when the door body is closed, the door hook abuts against the driving lever to press the damper.

[0006] In the above-mentioned home appliance, when the door body is open, by setting an angle range between the first driving elastic member and the second driving elastic member and the target connection, both driving elastic members can provide an appropriate driving force during the process of closing the door body, thereby enabling the door body to be closed 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 driving elastic material applies a rotational torque to the driving lever to rotate it in a first direction, and a tangential force component of the second driving elastic material 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 material is greater than the rotational torque applied by the second driving elastic material.

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

[0011] In some embodiments, the buffer assembly further includes a pivot lever, a switch is provided on the bracket, the pivot lever is pivotally connected to the bracket, and when the door body is closed, the door hook abuts against the pivot lever such that the pivot 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 therein, the contact arm being at least partially located 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 blocks 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 cooperatively connected 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 a home appliance of the present application includes a door body having a door hook, a bracket rotatably connected to the door body, and a buffer assembly attached to the bracket, the buffer assembly including a recoverable damper and a drive lever, the drive lever rotatably connected to the bracket, the damper including a main body fixed to the bracket and a rod movably connected to the main body, wherein when the door body is closed, the door hook abuts against the drive lever to compress 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 appliance, a recoverable damper is adopted, and the damper and the driving lever are not interlocked, so that the rocking block is omitted, the number of parts is reduced, and the moving process is simplified.

[0019] In some embodiments, the bracket is provided with a receiving groove, and the body is at least partially secured to 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 pivot lever, the bracket being provided with a switch, the pivot 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 therein, the contact arm being at least partially located 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 blocks 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 to abut 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 such 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 cooperatively connected 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 will be learned by practice of the present application. [Brief description 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 in conjunction with the accompanying drawings.

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

[0031] In the following, the embodiments of the present application shown in the accompanying drawings will be described in detail, 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 illustrative and are only used to explain the present specification, and are not to be understood as limiting the present specification.

[0032] In the description of this application, the orientations or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are orientations or positional relationships indicated based on the drawings, and are intended only to facilitate and simplify the description of this application, and do not indicate or imply that the devices or elements referred to have a particular orientation, are configured in a particular orientation, or are required to be operated, 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, components and configurations of specific examples will be described here. Of course, these are merely examples and are not intended to limit the present application. The present application may also repeat reference numerals and / or characters in different examples, and such repetition is for the purpose of brevity and clarity, and does not in itself indicate a relationship between the various embodiments and / or configurations discussed. Furthermore, although 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 driving elastic material 60 and the first connection wire L1 is selected from the range of 0 degrees to 60 degrees, the included angle T2 between the second driving elastic material 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 the first connection point formed by the first driving elastic material 60 and the connection portion 70 and the rotation center of the drive lever 20, and the second connection wire L2 is a line connecting the second connection point formed by the second driving elastic material 64 and the connection portion 70 and 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 provide appropriate driving force during the process of closing the door body 12, so that the door body 12 can be closed smoothly.

[0038] Specifically, the home appliance 100 includes, but is not limited to, home appliances 100 having a door body 12, such as a microwave oven, an oven (including an electric oven, a microwave oven, and a microwave steamer combination machine), a steamer box, a dishwasher, a sterilizer, etc. The embodiment of the present application will be described taking the home appliance 100 as a microwave oven as an example, and the description taking the home appliance 100 as a microwave oven as an example is for the purpose of easily understanding the implementation of the present application, and should not be understood as limiting the present application.

[0039] As the door body 12, a double-glazed door body 12 can be adopted, or a leak-wave-prevention glass door body 12 can also be adopted. One of the advantages of adopting a glass door body 12 is that the user can easily observe the state of the 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 easy for the user to open and close the door.

[0040] The material of the door hook may be selected from metal materials or plastic materials, or may be made by combining different materials. The door hook is elongated as a whole, and a hook-shaped portion 86 is provided at the tail end of the door hook, which facilitates engagement. The number of the door hook may be set according to the actual situation, for example, the number of the door hook may be single or may be 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 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 fixed to the door body 12 separately, and the door hook may be movably connected to the door body 12. No specific limitation is given here.

[0041] During the process of closing the door body 12, the lower door hook 28 mainly receives the buffering force of the buffer assembly 16, so that the noise generated when the door is closed is reduced. 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 is released from the drive lever 20, so that the length of the damper 18 becomes the longest. In other embodiments, the upper door hook 26 may receive the buffering force of the buffer assembly 16 to reduce the noise generated when the door is closed, 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 the noise generated when the door is closed, and it should be understood that there is no particular limitation here. In the following embodiment, an example in which the lower door hook 28 receives the buffering force of the buffer assembly 16 is described.

[0042] 10-11 and 40-41, the home appliance 100 further includes a tilt block 30 and a pressure spring 32, the tilt block 30 and the pressure spring 32 are attached to the bracket 14, the tilt block 30 has an accommodation space therein, the pressure spring 32 is partially accommodated in the accommodation space, and the top of the pressure spring 32 abuts against the top wall of the accommodation space and the bottom of the pressure spring 32 abuts against a support extending into the accommodation space in the bracket 14. The top of the tilt block 30 has an inclined surface 74 that slopes upward along a vertical plane toward the inside of the 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 disengaged. The pressing 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 for rotating 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 stroke for closing the door, as shown in Figures 63 to 65.

[0046] The home appliance 100 may include a chamber body (not shown), a bracket 14 may be fixed to the chamber body, and the door body 12 may be pivotally connected to the chamber body. The chamber body has a chamber with an opening on the front side, and the door body 12 is for opening and closing the opening. Food to be heated may be placed in 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 appreciated 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 driving lever 20 and the damper 18. When the lower door hook 28 applies a biasing force to the driving lever 20, the driving lever 20 rotates at a predetermined angle, and then the swing block 34 compresses the damper 18. When the damper 18 is compressed, the damper 18 rotates with damping on the lower door hook 28. In this way, when the lower door hook 28 applies a biasing force to the driving lever 20, the swing block 34 can be driven to compress the damper 18 after the driving lever 20 rotates at a predetermined angle. Furthermore, at the beginning when the lower door hook 28 acts on the driving lever 20, the lower door hook 28 bounces back against the damper 18, so that the closing of the door is not smooth and does not stagnate, which can improve the user experience.

[0049] 34 to 39, an accommodation groove 35 is formed in the driving 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 is rotated and accommodated in the rotation space 37, and the other end of the swing block 34 is accommodated in the swing space 39, and the swing space 39 is for providing a space in which the driving lever 20 rotates at a predetermined angle. As a result, after the driving lever 20 has been rotated at 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 from each other, 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 an accommodating groove 35, and specifically, in the embodiment shown in Figure 34, the accommodating groove 35 in which the oscillating block 34 is located is opened on the right side of the first arm 52.

[0052] 14 to 16, the top end of the swing block 34 has 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 is possible to prevent the swing block 34 from acting and the damper 18 from being compressed, so that at the initial stage of contact with the drive lever 20, the lower door hook 28 does not receive resistance from the damper 18 and does not bounce back or stagnate. The size of the swing space 39 can determine the size of a 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 FIG. 14, an open groove 45 is provided at the top end of the oscillating block 34, and the rod 24 of the damper 18 passes through the open groove 45 so as to be rotatably connected to the oscillating block 34. By providing the open groove 45, the rod member 24 can be avoided during the rotation of the damper 18.

[0056] 4, in 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 at a predetermined angle (there is no gap between the drive lever 20 and the swing block 34), the swing block 34 applies a biasing force to the rod 24 to move the rod 24 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 the noise when the door is closed. Referring to FIG. 68, in 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 drive lever 20 stops rotating 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 to which 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 driving elastic members, a first driving elastic member 60 and a second driving elastic member 64, and both driving elastic members and the driving lever 20 are located on both sides of the bracket 14 that are spaced apart from each other, 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 has 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 makes it possible to realize a process in which the lower door hook 28 (door main body 12) is first accelerated and then decelerated.

[0060] When the door body 12 is open, the included angle T1 between the first driving elastic member 60 and the first connection 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, and in one example, the included angle T2 can be 0 degrees, 20 degrees, 30 degrees, 40 degrees, 50 degrees, 60 degrees, or other included angles between 0 degrees and 60 degrees. The included angle T1 and the included angle T2 may be the same or different. The position and angle of the driving elastic member before closing the door determines the position and angle of both driving elastic members after closing the door, so the angle and position of both driving elastic members can adaptively change following the rotation of the driving lever 20, and the final position and angle of both driving elastic members after closing the door can be determined by determining the rotation angle of the driving lever 20. Therefore, when the door body 12 is open, the position and angle of both driving elastic members before closing the door 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 drive elastic material is a spring, but in other embodiments, the drive 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 arranged in a distributed manner, thereby avoiding the disadvantages of having too many structural members on the same side of the bracket 14, which reduces space and excessively concentrates weight.

[0064] The driving lever 20 can accelerate the lower door hook 28, so that in the acceleration stage, the door body 12 can be closed by the biasing force of the driving lever 20. In the process in which the lower door hook 28 is accelerating, the driving lever 20 rotates and then the damper 18 is compressed. As the door closing process continues, the driving lever 20 continues to compress the rod 24 of the damper 18, the amount of compression of the damper 18 increases, and the damping force applied also increases. When the damping force applied by the damper 18 becomes greater than the driving force applied by the driving elastic member, the lower door hook 28 starts to decelerate, so that the noise when closing the door body 12 in the deceleration stage is not too loud.

[0065] The first driving elastic member 60 is located above and drives the second driving elastic member 64. With reference to Figures 3 and 32, 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 connection 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 connection portion 70.

[0066] In some embodiments, referring to Fig. 50, when the door body 12 is open, 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, so that the angle settings of both driving elastic members can be easily determined.

[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 material 60 and the second driving elastic material 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 in realizing a tightly closed door.

[0071] Specifically, referring to Fig. 51, the resultant force F of both driving elastic members on the driving lever 20 is located above the rotation center O of the driving lever 20, and the driving lever 20 can rotate in a first direction under the action of the resultant force of both driving elastic members. Referring to Fig. 60, the resultant force F of both driving elastic members on the driving lever 20 is located below the rotation center O of the driving lever 20, and the driving lever 20 can rotate in a second direction under the action of the resultant force F of both driving 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 the resultant force F of both drive elastic members acts on the drive lever 20, allowing the drive lever 20 to rotate in the clockwise direction. When the lower door hook 28 is in contact with the drive lever 20, the drive lever 20 rotates in the counterclockwise direction under the action of the lower door hook 28, and the resultant force F of both drive elastic members on the drive lever 20 switches to a position lower than 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 in the counterclockwise direction 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 can increase the rotation angle of the driving lever 20. 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 made tighter when closing the door body 12.

[0074] In some embodiments, when the door body 12 is open, the tangential force component 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 force component 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, in which 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 rotation torque to the driving lever 20, and the tangential component force F2 of the second driving elastic member 64 applies a clockwise rotation torque to the driving lever 20, and since the rotation torque applied by the first driving elastic member 60 is greater than the rotation 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 force component 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 force component F2 of the second driving elastic member 64 applies a rotational torque to the driving lever 20 to rotate it in the second direction, and the rotational torque applied by the second driving elastic member 64 is 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 driving elastic members causes the driving lever 20 to rotate in the clockwise direction, so that the driving lever 20 can close the door body 12 more tightly via the lower door hook 28.

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

[0079] 46 to 51, at the start of the door closing process 1, 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 in the counterclockwise direction. 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 in the counterclockwise direction, but since the position is limited, the drive lever 20 is stationary.

[0080] During 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 driving elastic members is located below the rotation center O of the driving lever 20, and both driving elastic members are located below the rotation center O of the driving lever 20. At this time, both driving elastic members rotate the driving lever 20 in the clockwise direction. The tangential component forces provided by both driving elastic members are relatively small, and therefore the torque provided to the driving lever 20 is small. The length of the first driving elastic member 60 becomes longer and then shorter between the door closing process 1 and the door closing process 2, and the elastic force becomes larger and then becomes smaller. The length of the second driving elastic member 64 becomes much smaller between the door closing process 1 and the door closing process 2, and the elastic force also becomes smaller. In this process, the second driving elastic member 64 contributes the main rotation 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 the door closing process 2 to the door closing process 3, the resultant force F of both driving elastic members gives a much larger rotational torque to the driving lever 20. That is, until the door body 12 reaches the closed position, the rotational torque given by the tangential component forces of both driving elastic members is much larger. The rotational torque contributed by the second driving elastic member 64 is large.

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

[0085] 4, in some embodiments, the buffer assembly 16 further includes a pivot lever 40, a switch is provided on the bracket 14, the pivot lever 40 is pivotally connected to the bracket 14, and when the door body 12 is closed, the door hook abuts against the pivot lever 40 so that the pivot lever 40 triggers the switch. In this way, by increasing the pivot lever 40, the safety regulation requirements can be met, while the noise during closing the door 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 a door that is not 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 pivot lever 40 so that the pivot 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. During 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, 42-45, 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, 30, the bracket 14 has a slot 46, the contact arm 44 is at least partially located in the slot 46, and the contact arm 44 is used to trigger a switch. This can protect the pivot lever 40 from being triggered by an operator, and can meet safety regulatory requirements.

[0090] Specifically, the contact arm 44 is separated from the pivot 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, and it is 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 contact arm 44, artificially triggering the switch, and causing the home appliance 100 to mistakenly believe that the door body 12 is securely closed, and thus starting 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 so as to surround the contact arm 44, which can better ensure that the contact arm 44 is not accidentally triggered and can make 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 in the process of closing the door body 12, after the door hook passes under the second arm 54, it 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 in the process of closing the door body 12, the first arm 52 avoids the protruding post 56 by the notch 58. In this way, it is ensured that the contact arm 44 of the rotating lever 40 passes smoothly without interference.

[0093] Specifically, in relation to FIG. 4, when the door body 12 is open, both the first arm 52 and the second arm 54 are located to the left of the protruding post 56. The first arm 52 is long, and in the process of closing the door body 12, the lower door hook 28 passes under the second arm 54 and then enters the space between the first arm 52 and the second arm 54, and then the lower door hook 28 abuts against the first arm 52 to rotate the drive lever in a counterclockwise direction, and in the process of rotating the drive lever 20, the second arm 54 engages with the lower door hook 28, and the drive lever 20 makes the lower door hook 28 continue to close the door, and the first arm 52 rotates toward the protruding post 56, and the notch 58 is provided so as not to interfere with the protruding post 56 when the first arm 52 passes, so that the lower door hook 28 abuts against the protruding post 56 to rotate the rotating lever 40 in a clockwise direction, and the door body 12 can be smoothly closed and the switch can be smoothly triggered. 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, and can meet safety regulatory requirements.

[0095] Specifically, in the process of closing the door body 12, the lower door hook 28 enters the bracket 14 via 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 blocks at least a part of the rotating arm 42 makes it possible to prevent a safety problem that would occur if an external object such as a thin rod enters the bracket 14 through the lower through-hole 48, pushing and rotating the rotating arm 42, artificially triggering the switch, and causing the home appliance 100 to mistakenly believe that the door body 12 is securely closed, which would then result in the appliance starting 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 appreciated 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 to abut 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 contact the protruding post 56 of the contact arm 44, and 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 disposed so that, during the process of closing the door body 12, the driving lever 20 triggers the first switch 76 under the driving of the lower door hook 28, and then the rotating lever 40 triggers the second switch 78 under the driving of the lower door hook 28, and then triggers the third switch 80. In this way, after the driving lever 20 triggers the first switch 76, the rotating lever 40 sequentially triggers the second switch 78 and the third switch 80, so that the first switch 76, the second switch 78 and the third switch 80 can be triggered sequentially, and the problem of the sequence of triggering the switches being out of order can be avoided.

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

[0103] In the process of using the microwave oven, the order in which the three switches are triggered is particularly important. In the process of closing the door, the triggering order should be to first trigger the monitoring switch, then the secondary switch, and finally the primary switch. In this way, it can be ensured that the user can use it safely and that the safety regulatory requirements are met.

[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 sequence are set according to the actual situation, and are not specifically limited here.

[0105] In some embodiments, the tail end of the door hook has a first guiding 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 the side of the second arm 54 has a second guide surface 84. In 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, in 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 has bypassed the second arm 54 and the second arm 54 engages with the door hook, and the driving lever 20 is abnormally triggered, and there is no need to disassemble and repair the door, and a structural design for forcibly closing the door can be realized, which allows the user to forcibly close the door by himself 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 mounted on the hook-shaped portion 86, which can facilitate a user to forcefully 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 driving lever 20 under a certain initial speed condition, the lower door hook 28 can rotate the driving lever 20, and after the driving lever 20 rotates, it triggers the first switch 76, and then the second arm 54 of the driving 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, a user or a child may use an abnormal means to forcibly trigger the driving lever 20 (as shown in FIG. 69), for example, a thin and long object such as a bamboo skewer or a finger may be used to enter the bracket 14 to move the driving lever 20, forcibly triggering the driving lever 20 and rotating the driving lever 20, causing the lower door hook 28 and the driving lever 20 to be unable to cooperate, making it impossible to close the door body 12, and thus causing the home appliance 100 to lose its usable function and even requiring disassembly and repair. In the home appliance 100 according to the embodiment of the present application, the tail end of the lower door hook 28 has a first guide surface 82, the driving lever 20 includes a second guide surface 84, and the first guide surface 82 and the second guide surface 84 are connected in cooperation with each other, so that the second arm 54 can engage with the lower door hook 28 after the tail end of the door hook bypasses the second arm 54, and the user can use a large force to restore the normal cooperation between the lower door hook 28 and the driving lever 20, and there is no need to disassemble and repair the home appliance.

[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 driving lever 20 and the bracket 14 by the elastic deformation of the plastic. The first guide surface 82 and the second guide surface 84 may be inclined guide surfaces.

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

[0112] The initial and final states are explained below. At the initial stage (when the door is not closed), both driving elastic members connect the bracket 14 and the driving lever 20, and the resultant force F of both driving elastic members is located above the rotation center O of the driving lever 20. At this time, the resultant force F of the driving elastic members tends to rotate the driving lever 20 in the clockwise direction, and both driving elastic members are always kept in 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, the swing block 34 is connected to the damper 18 and the driving lever 20, respectively, the swing block 34 is free to rotate around the driving lever 20, and the pressing spring 32 is always in a compressed state. At the final stage (after the door is opened), the lower door hook 28 pulls the driving lever 20 to move it outward, and at this time the angle between the swing block 34 and the driving lever 20 becomes maximum, moving the first driving elastic member 60, the second driving elastic member 64, and the damper 18. During the movement process, 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 the driving lever 20 in the counterclockwise direction to a force rotating the driving lever 20 in the clockwise direction. After the lower door hook 28 is pulled out, the driving lever 20 actively rotates clockwise to the 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 a door to achieve a gradual / soft closing of the door. As shown in FIG. 4 and FIG. 63-FIG. 65, under a certain initial speed condition, the lower door hook 28 first contacts the first arm 52 of the driving lever 20, and then coincides with the swing block 34 after rotating the driving lever 20 counterclockwise around the rotation axis by a certain angle. During the process of the certain angle, the damper 18 does not get in the way (i.e., there is no obvious rebound phenomenon after the lower door hook 28 collides with the first arm 52, so that the lower door hook 28 does not repeatedly collide in the space between the first arm 52 and the second arm 54 and does not cause a stagnation phenomenon). At the same time, the resultant force F of both driving elastic members rotates downward from the rotation center O of the driving lever 20, and the second arm 54 of the driving lever 20 quickly contacts the lower door hook 28.

[0114] As shown in FIG. 65, when the resultant force F of both driving elastic members is located below the rotation center O of the driving lever 20, the resultant force F of both driving elastic members is converted into a force that rotates the driving lever 20 in the counterclockwise direction, so that the driving lever 20 rotates the swing block 34 together, moves the lower door hook 28, and at the same time, the upper door hook 26 enters the upper through hole 90 of the front plate 51, and starts to push down the inclined block 30. The driving lever 20 first triggers the monitoring switch. After that, the tail end of the lower door hook 28 contacts the protruding post 56 of the contact arm 44 of the rotating lever 40, the rotating lever 40 starts to rotate, and the secondary switch and the primary switch are triggered 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 inclined block 30, and the inclined block 30 starts to rise and abuts against the left circular 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 gradual / soft closing of the door. 66-68 and FIG. 4, under manual drive, the lower door hook 28 rotates the driving lever 20 in a clockwise direction, and first the lower door hook 28 is released from the protruding post 56 of the contact arm 44 of the rotating lever 40, and the primary switch and the secondary switch are not turned on in sequence. Then, the upper door hook 26 presses the inclined block 30 and moves outward until it is completely released. Then, the driving lever 20 is released from contact with the monitoring switch. During this process, the resultant force F of both driving elastic members is converted from a force rotating the driving lever 20 in a counterclockwise direction to a force rotating the driving lever 20 in a clockwise direction. After the lower door hook 28 is pulled out, the driving lever 20 is actively rotated to the initial position. Finally, the first driving elastic member, the second driving elastic member 64, the inclined block 30, the rotating lever 40 and the damper 18 all return to their initial states, and the door opening is completed.

[0116] (3) The process of forcibly closing the door. As shown in Fig. 69, the door is not closed, but the driving lever 20 is triggered. At this time, the door body 12 can be strongly pushed to close the door, and the lower door hook 28 can return to the 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 driving lever 20 and the bracket 14 due to the elastic deformation of the plastic. The two guide surfaces ensure that the forced closing of the door is performed 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, and 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 comes into contact with the drive lever 20 and compresses the damper 18. When the door body 12 is opened, the door hook comes out of contact with 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] In the above-mentioned home appliance 100, a recoverable damper 18 is adopted, and the damper 18 and the driving lever 20 are not interlocked, so that the swing block is omitted, the use of parts is reduced, and the movement process can be simplified. In addition, in the related art, the damper used is a one-way damper, which is connected to the swing block, and the one-way damper does not automatically return to its original length, and the dimension of the damper at the position where it is connected to the swing block is small, so that the damper is required to have high performance and is expensive. The home appliance 100 according to the embodiment of the present application adopts a recoverable damper 18, and when the external force compressing the damper 18 is released, the recoverable damper 18 does not need to be connected to the driving lever 20 via the swing block and can automatically return to its original length, so that a cheaper damper 18 can be adopted, which in turn reduces the cost of parts and facilitates maintenance.

[0120] Specifically, the home appliance 100 includes, but is not limited to, home appliances 100 having a door body 12, such as a microwave oven, an oven (including an electric oven, a microwave oven, and a microwave steamer combination machine), a steamer box, a dishwasher, a sterilizer, etc. The embodiment of the present application will be described taking an example in which the home appliance 100 is a microwave oven, and the description taking an example in which the home appliance 100 is a microwave oven is for the purpose of easily understanding the implementation of the present application, and should not be understood as limiting the present application.

[0121] As the door body 12, a double-glazed door body 12 can be adopted, or a leak-wave-prevention glass door body 12 can also be adopted. One of the advantages of adopting a glass door body 12 is that the user can easily observe the state of the 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 material of the door hook may be selected from all metal materials or plastic materials, or may be made by combining different materials. The door hook is elongated as a whole, and a hook-shaped portion 86 is provided at the tail end of the door hook, which facilitates engagement. The number of the door hook may be set according to the actual situation, for example, the number of the door hook may be single or may be 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 FIG. 12 and FIG. 13. In one embodiment, the upper door hook 26 and the lower door hook 28 may be integral structural members formed in connection with each other 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. No specific limitation is given here.

[0123] During the process of closing the door body 12, the lower door hook 28 mainly receives the buffer force of the buffer assembly 16, so that the noise generated when the door is closed is reduced. That is, when the door body 12 is closed, the lower door hook 28 abuts against the driving lever 20 and compresses the rod 24. When the door body 12 is opened, the lower door hook 28 is released from the driving lever 20, the damper 18 is in a natural length state, and there is a gap between the rod 24 and the driving lever 20. In other embodiments, the upper door hook 26 may receive the buffer force of the buffer assembly 16 to reduce the noise generated when the door is closed, or both the upper door hook 26 and the lower door hook 28 may receive the buffer force of the buffer assembly 16 to reduce the noise generated when the door is closed, and it should be understood that there is no particular limitation here. In the following embodiment, an example in which the lower door hook 28 receives the buffer force of the buffer assembly 16 is described.

[0124] 74 and 40 to 41, home appliance 100 further includes inclined block 30 and pressure spring 32, inclined block 30 and pressure spring 32 are attached to bracket 14, inclined block 30 has an accommodation space therein, pressure spring 32 is partially accommodated in the accommodation space, and pressure spring 32 abuts at its top against a top wall of the accommodation space and at its bottom against a support extending into the accommodation space in bracket 14. Inclined block 30 has at its top an inclined surface 74 that slopes upward along a vertical plane toward 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 outward until the upper door hook 26 is completely released. The pressing 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 for opening and closing the opening. Food to be heated can be placed in the chamber.

[0128] The body 22 of the damper 18 is fixed to the bracket 14, and the body 22 is fixed and does not move during the process of opening and closing the door body 12. During the process of closing the door body 12, the lower door hook 28 pushes the driving lever 20 to rotate counterclockwise, and after the driving lever 20 rotates at a certain angle (there is no gap between the driving lever 20 and the rod 24), it comes into contact with the rod 24 and pushes it to move into the body 22, and the body 22 applies a damping force to the rod 24, which reduces the speed at which the door body 12 closes and further reduces the noise when the door is closed. During the process of opening the door body 12, the lower door hook 28 rotates the driving lever 20 in the clockwise direction, and the rod 24 is driven by the body 22 to extend outward from the body 22 until it separates from the driving lever 20 and the damper 18 returns to its natural length. At this time, the damper 18 is in its natural length state. The natural length state of the damper 18 can be understood to be the state of the damper 18 when the rod 24 is not subjected to 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] In addition, 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 a certain initial speed condition, and can rotate the driving lever 20 counterclockwise around the rotation axis. During this small process, the damper 18 is not hindered due to the existence of the gap, so that there is no obvious bounce 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 driving lever 20 in the cavity and causing the stagnation phenomenon.

[0130] 83, in some embodiments, the bracket 14 is provided with a receiving groove 34, and the body 22 is at least partially fixed in the receiving groove 34. This can facilitate the attachment of the damper 18.

[0131] Specifically, the body 22 may be a cylindrical body 22, and in one embodiment, a portion of the body 22 may be located 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 it easier to install the damper 18.

[0132] 70 and 79 to 82, the bracket 14 is provided with a protective cover 36 having another accommodation groove 34 capable of accommodating 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 by 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 to which the drive lever 20 can rotate after the door is closed.

[0135] In some embodiments, the buffer assembly 16 further includes a pivot lever 40, a switch is provided on the bracket 14, the pivot lever 40 is pivotally connected to the bracket 14, and the door hook abuts against the pivot lever 40 so that the pivot lever 40 triggers the switch when the door body 12 is closed. In this way, by increasing the pivot lever 40, the safety regulation requirements can be met while the noise during closing of the door 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 a door that is not 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 pivot lever 40 so that the pivot 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. During 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] In some embodiments, referring to Figs. 42-45, 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, and referring to Fig. 88, a slot 46 is formed in the bracket 14, and the contact arm 44 is at least partially located in the slot 46, and the contact arm 44 is used to trigger a switch. This can protect the pivot lever 40 from being triggered by an operator, and can meet safety regulatory requirements.

[0140] Specifically, the contact arm 44 is separated from the pivot 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, and it is possible to prevent a safety hazard caused by an external object such as a thin rod extending from the lower through-hole 48 into the bracket 14, pushing and rotating the contact arm 44, artificially triggering the switch, and causing the home appliance 100 to mistakenly believe that the door body 12 is securely closed, and thus starting up.

[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 so as to surround the contact arm 44, which can better ensure that the contact arm 44 is not accidentally triggered and can make the rotation of the contact arm 44 more stable.

[0142] In some embodiments, referring to Figures 89-94, the driving lever 20 includes a first arm 52 and a second arm 54 spaced apart from each other, and in the process of closing the door body 12, after the door hook passes under the second arm 54, it 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 in the process of closing the door body 12, the first arm 52 avoids the protruding post 56 by the notch 58. In this way, it is ensured that the contact arm 44 of the rotating lever 40 passes smoothly without interference.

[0143] Specifically, in relation to FIG. 73, when the door body 12 is open, both the first arm 52 and the second arm 54 are located on the left side of the protruding post 56. The first arm 52 is long, and in the process of closing the door body 12, the lower door hook 28 passes under the second arm 54 and then enters the space between the first arm 52 and the second arm 54, and then the lower door hook 28 abuts against the first arm 52 to rotate the drive lever counterclockwise, and in the process of rotating the drive lever 20, the second arm 54 engages with the lower door hook 28, and the drive lever 20 makes the lower door hook 28 continue to close the door, and the first arm 52 rotates toward the protruding post 56, and the notch 58 is provided so as not to interfere with the protruding post 56 when the first arm 52 passes, so that the lower door hook 28 abuts against the protruding post 56 to rotate the rotating lever 40 in the clockwise direction, and the door body 12 can be smoothly closed and the switch can be smoothly triggered. 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 two driving elastic members, 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, and the driving elastic members and the driving lever 20 are located on both sides of the bracket 14 with the through hole 66 opened therein as shown in Figs. 86 to 87, and the driving lever 20 connects the two driving elastic members through the through hole 66, and 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 makes it possible to realize the process of first accelerating the lower door hook 28 and then decelerating it.

[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 connects 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 can realize the process of first accelerating the lower door hook 28 and then decelerating it.

[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 being 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 cushioning 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 arranged in a distributed manner, thereby avoiding the disadvantages of having too many structural members on the same side of the bracket 14, which reduces space and excessively concentrates weight.

[0149] The driving elastic member may provide a pulling force to the driving lever 20 so that the driving lever 20 accelerates the lower door hook 28, or may provide 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 provide a pulling force to the driving lever 20 so that the driving lever 20 accelerates the lower door hook 28.

[0150] The driving lever 20 can accelerate the lower door hook 28, so that in the acceleration stage, the door body 12 can be closed by the biasing force of the driving lever 20. In the process of accelerating the lower door hook 28, the driving lever 20 rotates and then the damper 18 is compressed. As the door closing process continues, the driving lever 20 continues to compress the rod 24 of the damper 18, the compression amount of the damper 18 increases, and the damping force applied also increases. When the damping force applied by the damper 18 becomes larger than the driving force applied by the driving elastic material, the lower door hook 28 starts to decelerate, so that the noise when closing the door body 12 in the deceleration stage is not too loud. 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 located above and drives the second driving elastic member 64. Referring to Fig. 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 connection 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 connection portion 70. The included 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, etc., 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 numbers 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, and can meet the safety F regulation requirements.

[0154] Specifically, in the process of closing the door body 12, the lower door hook 28 enters the bracket 14 via 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 blocks at least a part of the rotating arm 42 makes it possible to prevent a safety problem that would occur if an external object such as a thin rod enters the bracket 14 through the lower through-hole 48, pushing and rotating the rotating arm 42, artificially triggering the switch, and causing the home appliance 100 to mistakenly believe that the door body 12 is securely closed, which would then result in the appliance starting up.

[0155] Also, referring to FIG. 82, a separate 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, thereby further ensuring that the rotating arm 42 is not accidentally triggered.

[0156] It should be appreciated 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 to abut 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 contact the protruding post 56 of the contact arm 44, and 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 disposed so that, during the process of closing the door body 12, the driving lever 20 triggers the first switch 76 under the driving of the lower door hook 28, and then the rotating lever 40 triggers the second switch 78 under the driving of the lower door hook 28, and then triggers the third switch 80. In this way, after the driving lever 20 triggers the first switch 76, the rotating lever 40 sequentially triggers the second switch 78 and the third switch 80, so that the first switch 76, the second switch 78 and the third switch 80 can be triggered sequentially, and the problem of the sequence of triggering the switches being out of order can be avoided.

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

[0162] In the process of using the microwave oven, the order in which the three switches are triggered is particularly important. In the process of closing the door, the triggering order should be to first trigger the monitoring switch, then the secondary switch, and finally the primary switch. In this way, it can be ensured that the user can use it safely and that the safety regulatory requirements are met.

[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 sequence are set according to the actual situation, and are not specifically limited here.

[0164] In some embodiments, the tail end of the door hook has a first guide surface 82, see FIG. 89-FIG. 94, the driving lever 20 includes a first arm 52 and a second arm 54 spaced apart from each other, and the side of the second arm 54 has a second guide surface 84, and in 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. Thus, in 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 second arm 54 engages with the door hook after the tail end of the door hook bypasses the second arm 54, and the driving lever 20 is abnormally triggered, and there is no need to disassemble and repair it, and a structural design for forcibly closing the door can be realized that can be returned to normal after the user forcibly closes the door by himself.

[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 mounted on the hook-shaped portion 86, which can facilitate a user to forcefully 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 driving lever 20 under a certain initial speed condition, the lower door hook 28 can rotate the driving lever 20, and after the driving lever 20 rotates, it triggers the first switch 76, and then the second arm 54 of the driving 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, a user or a child may use an abnormal means to forcibly trigger the driving lever 20 (as shown in FIG. 98), for example, a thin and long object such as a bamboo skewer or a finger may be used to enter the bracket 14 to move the driving lever 20, forcibly triggering the driving lever 20 and rotating the driving lever 20, causing the lower door hook 28 and the driving lever 20 to be unable to cooperate, making it impossible to close the door body 12, and thus causing the home appliance 100 to lose its usable function and even requiring disassembly and repair. In the home appliance 100 according to the embodiment of the present application, the tail end of the lower door hook 28 has a first guide surface 82, the driving lever 20 includes a second guide surface 84, and the first guide surface 82 and the second guide surface 84 are connected in cooperation with each other, so that the second arm 54 can engage with the lower door hook 28 after the tail end of the door hook bypasses the second arm 54, and the user can use a large force to restore the normal cooperation between the lower door hook 28 and the driving lever 20, and there is no need to disassemble and repair the home appliance 100.

[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 driving lever 20 and the bracket 14 by the elastic deformation of the plastic. The first guide surface 82 and the second guide surface 84 may be inclined guide surfaces.

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

[0170] In the embodiment of the two driving elastic members, the initial and final states are described. In the initial state (when the door is not closed), the two driving elastic members connect the bracket 14 and the driving lever 20, and the resultant force of the two driving elastic members is located above the rotation axis of the driving lever 20. At this time, the driving lever 20 tends to rotate in the clockwise direction due to the biasing force (resultant force) of the driving elastic members, and both driving elastic members are always kept in 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 pressing spring 32 is always in a compressed state. The rod 24 of the damper 18 and the driving lever 20 do not directly contact each other with a gap therebetween. At the final state (after the door is opened), the lower door hook 28 pulls the driving lever 20 to move it outward, and moves the first driving elastic member 60 and the second driving elastic member 64. During the movement process, when the resultant force of both driving elastic members is located above the rotation axis of the driving lever 20, the force applied to the driving lever 20 by the driving elastic members is converted from a force rotating the driving lever 20 in the counterclockwise direction to a force rotating the driving lever 20 in the clockwise direction. 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 first and second driving elastic members 64 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.

[0171] In the embodiment of the single driving elastic member, the initial and final states are described. At the initial time (when the door is not closed), the single driving elastic member connects the bracket 14 and the driving lever 20, and the biasing force of the driving elastic member is located above the rotation axis of the driving lever 20. At this time, the biasing force of the driving elastic member tends to rotate the driving lever 20 in the clockwise direction, and the driving elastic member always maintains a tension 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 pressing spring 32 is always in a compressed state. The rod 24 of the damper 18 and the driving lever 20 do not directly contact each other with a gap therebetween. At the final time (after the door is opened), the lower door hook 28 pulls the driving lever 20 to move it outward, and moves 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 the driving lever 20 in the counterclockwise direction to a force rotating the driving lever 20 in the clockwise direction. After the lower door hook 28 is pulled out, the driving lever 20 rotates clockwise to the 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 a door to achieve a gradual / soft closing of the door. As shown in FIG. 70 and FIG. 95-FIG. 97, in the embodiment of both driving elastic members, under a certain initial speed 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 rotation axis at a certain angle. During the process of the certain angle, the damper 18 does not get in the way (i.e., after the lower door hook 28 collides with the first arm 52, there is no obvious rebound phenomenon, so that the lower door hook 28 does not repeatedly collide with the interval between the first arm 52 and the second arm 54 to cause a stagnation phenomenon). At the same time, the resultant force of both driving elastic members rotates the driving lever 20 downward from the rotation axis, and the second arm 54 of the driving lever 20 quickly contacts the lower door hook 28. When the resultant force of both driving elastic members is located below the rotation axis of the driving lever 20, the resultant force of both driving elastic members is converted into a force that rotates the driving lever 20 counterclockwise, moving the lower door hook 28, the driving lever 20 starts to contact the damper 18, and the damper starts to function. At the same time, the upper door hook 26 enters the upper through-hole 90 of the front plate 51, and the tilt block 30 starts to be pushed down. The driving lever 20 first triggers the monitoring switch. After that, the tail end of the lower door hook 28 contacts the protruding post 56 of the contact arm 44 of the rotating lever 40, the rotating lever 40 starts to rotate, and the secondary switch and the primary switch are triggered 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, the tilt block 30 starts to rise, and abuts against the left circular arc of the tail end of the upper door hook 26. When the movement stops, the door closing is finished.

[0173] As shown in FIG. 70 and FIG. 101, in the embodiment of the single-driving elastic material, under a certain initial speed 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 rotation axis at a certain angle. During the process of the certain angle, the damper 18 is not in the way (i.e., after the lower door hook 28 collides with the first arm 52, there is no obvious rebound phenomenon, so that the lower door hook 28 does not repeatedly collide with the interval between the first arm 52 and the second arm 54 to cause a stagnation phenomenon). At the same time, the biasing force of the single-driving elastic material rotates the driving lever 20 downward from the rotation axis, and the second arm 54 of the driving lever 20 quickly contacts the lower door hook 28. When the biasing force of the single driving elastic member is located below the rotation 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 starts to contact the damper 18, and the damper starts to function. At the same time, the upper door hook 26 enters the upper through-hole 90, and the tilt block 30 starts to be pushed down. The driving lever 20 first triggers the monitoring switch. After that, the tail end of the lower door hook 28 contacts the protruding post 56 of the contact arm 44 of the rotating lever 40, the rotating lever 40 starts to rotate, and the secondary switch and the primary switch are triggered 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, the tilt block 30 starts to rise, and abuts against the left circular 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 gradual / soft closing of the door. 95-97, 101 and 70, under manual drive, the lower door hook 28 rotates the driving lever 20 in a clockwise direction, and first the lower door hook 28 is released from the protruding post 56 of the contact arm 44 of the rotating lever 40, and the primary switch and the secondary switch are not turned on in sequence. Then, the upper door hook 26 presses the inclined block 30 and moves outward until it is completely released. Then, the driving lever 20 is released from contact with the monitoring switch. During this process, the biasing force of the driving elastic member is converted from a force rotating the driving lever 20 in a counterclockwise direction to a force rotating the driving lever 20 in a clockwise direction. After the lower door hook 28 is pulled out, the driving lever 20 is actively rotated to the initial position. Finally, the first driving elastic member, the second driving elastic member 64, the inclined block 30, the rotating lever 40 and the damper 18 all return to their initial states, and the door opening is completed.

[0175] (3) The process of forcibly closing the door. As shown in Fig. 98, the door is not closed, but the driving lever 20 is triggered. At this time, the door body 12 can be strongly pushed to close the door, and the lower door hook 28 can return to the 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 driving lever 20 and the bracket 14 due to the elastic deformation of the plastic. The two guide surfaces ensure that the forced closing of the door is performed smoothly.

[0176] In the description of this application, the references "one embodiment," "some embodiments," "exemplary embodiments," "examples," "particular examples," or "some examples" mean that the particular features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In the specification of this application, generalized expressions of 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 Rod 26 Upper Door Hook 28 Lower Door Hook 30 Inclined Block 34 Swing Block 35 Storage Groove 36 Protective cover 37 Rotation Space 38 Restriction Post 39 Swinging Space 40 Rotating lever 41 Connection rotating 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 3rd 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 Wire Connection L2 2nd Wiring O Rotation center T1 Enclosing angle T2 Enclosing angle T3 Enclosing angle

Claims

1. A home appliance, A bracket and A door body rotatably connected to the bracket and having a door hook; a shock absorbing assembly attached to the bracket, the shock absorbing 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, 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 is disengaged from the drive lever, an included angle between the first driving elastic material and a first connecting wire is selected from a range of 0 degrees to 60 degrees, an included angle between the second driving elastic material and a second connecting wire is selected from a range of 0 degrees to 60 degrees, the first connecting wire is a line connecting a first connecting point formed by the first driving elastic material and the connecting portion and a 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 material and the connecting portion and a rotation center of the driving lever, The home appliance is characterized in that, when the door body is closed, the door hook abuts against the drive lever to press the damper.

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 described in any one of claims 1 to 3, characterized in that when the door body is open, a tangential force component of the first driving elastic material applies a rotational torque to the driving lever to rotate it in a first direction, and a tangential force component of the second driving elastic material 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 material is greater than the rotational torque applied by the second driving elastic material.

5. The home appliance according to any one of claims 1 to 4, characterized in that, when the door body is closed, a tangential force component of the first driving elastic material 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 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 shock absorbing assembly further includes a pivot lever, the switch being provided on the bracket, the pivot lever being pivotally connected to the bracket, The home appliance according to any one of claims 1 to 5, characterized in that, when the door body is closed, the door hook abuts against the pivot lever so that the pivot lever triggers the switch.

7. The home appliance of claim 6, characterized in that 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, 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. 9. The electric home appliance according to claim 7, wherein the bracket is further provided with a stopper block for blocking at least a part of the pivot arm.

10. The tail end of the door hook has a first guide surface, The home appliance according to any one of claims 1 to 9, characterized in that the drive lever includes a first arm and a second arm spaced apart, a side of the second arm having 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.

11. 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 being 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.

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

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

14. The shock absorbing assembly further includes a pivot lever, the switch being provided on the bracket, the pivot lever being pivotally connected to the bracket, The home appliance according to any one of claims 11 to 13, characterized in that, when the door body is closed, the door hook abuts against the pivot lever so that the pivot lever triggers the switch.

15. The home appliance of claim 14, characterized in that 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, the contact arm being at least partially positioned within the slot, and the contact arm being used to trigger the switch.

16. 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 15, 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.

17. 17. The electric home appliance according to claim 15, wherein the bracket is further provided with a stopper block for blocking at least a part of the pivot arm.

18. The household appliance according to claim 17, wherein a top surface of the stopper block includes an inclined surface for guiding the door hook so as to abut against the contact arm during the process of closing the door body.

19. The door hook includes a lower door hook, and a first switch is provided on the bracket, the switch including a second switch and a third switch; The household appliance according to any one of claims 14 to 18, characterized in that the buffer assembly is arranged such 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.

20. The tail end of the door hook has a first guide surface, The home appliance of any one of claims 11 to 19, characterized in that the driving lever includes a first arm and a second arm spaced apart, a side of the second arm having 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.

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