Vibration-damping mats and household appliances

Abstract

The present invention discloses a vibration-damping foot pad and a household appliance, wherein the vibration-damping foot pad is used to connect the compressor and the bottom plate of the household appliance, and the vibration-damping foot pad comprises a first vibration-damping structure, a second vibration-damping structure and a connecting structure, wherein the first vibration-damping structure has a first end connected to the compressor, a second end used to connect to the bottom plate and a cavity penetrating the first end; the second vibration-damping structure is inserted into the cavity and cooperates with the cavity gap, and the second vibration-damping structure has an installation channel for the installation bolts connecting the vibration-damping foot pad and the bottom plate to pass through; the connecting structure connects the inner wall of the first vibration-damping structure and the outer wall of the second vibration-damping structure. The above-mentioned vibration-damping foot pad has a good vibration-damping effect, which is conducive to obtaining a household appliance with low vibration noise.

Description

Technical Field

[0001] The invention relates to the technical field of vibration reduction, in particular to a vibration reduction foot pad and a household appliance. Background Art

[0002] The vibration-damping pad is an important component that connects the bottom corner of the compressor and the bottom plate of the household appliance (the bottom plate of the box of household appliances such as refrigerators and air conditioners). Usually, the vibration-damping pad is fixed to the bottom plate of the household appliance by mounting bolts, and the end of the vibration-damping pad away from the bottom plate is connected to the bottom corner of the compressor. The vibration-damping effect of the vibration-damping pad directly affects the vibration and noise level of household appliances such as refrigerators and air conditioners. However, the lateral stiffness of the vibration-damping pad in the related art is relatively large, resulting in most of the vibration excitation of the bottom corner of the compressor being transmitted to the mounting bolts, and then transmitted to the bottom plate through the mounting bolts, which in turn causes the bottom plate of the household appliance to resonate and generate fundamental frequency (minimum natural frequency) resonance noise. That is, the vibration-damping effect of the vibration-damping pad in the related art is limited, which is not conducive to obtaining household appliances with low vibration noise. Summary of the invention

[0003] The main purpose of the present invention is to provide a vibration-damping foot pad, aiming to increase the vibration-damping effect of the vibration-damping foot pad, so as to facilitate obtaining a household appliance with low vibration noise.

[0004] To achieve the above object, the vibration-damping foot pad proposed by the present invention is used to connect the compressor and the bottom plate of the household appliance, and comprises:

[0005] a first vibration reduction structure having a first end connected to the compressor, a second end for connecting to the bottom plate, and a cavity extending through the first end;

[0006] A second vibration-damping structure is inserted into the cavity and is gap-matched with the cavity, the second vibration-damping structure having a mounting channel for mounting bolts to pass through; and

[0007] A connecting structure connects the inner wall of the first vibration-damping structure and the outer wall of the second vibration-damping structure.

[0008] In one embodiment, the connection structure is arranged obliquely relative to an arrangement direction of the first end and the second end.

[0009] In one embodiment, the connection structure and the arrangement direction of the first end and the second end form an angle with the opening facing the first end, and the angle is 30°-60°.

[0010] In one embodiment, in the arrangement direction from the first end to the second end, the lower end of the connecting structure is connected to the inner wall of the first vibration damping structure, and the upper end of the connecting structure is connected to the outer wall of the second vibration damping structure, or, the upper end of the connecting structure is connected to the inner wall of the first vibration damping structure, and the lower end of the connecting structure is connected to the outer wall of the second vibration damping structure.

[0011] In one embodiment, the connection structure includes a plurality of reinforcing ribs arranged at intervals and surrounding the second vibration damping structure;

[0012] Alternatively, the connecting structure is a hollow conical structure, the large end of the conical structure is connected to one of the inner wall of the first vibration damping structure and the outer wall of the second vibration damping structure, and the small end of the conical structure is connected to the other of the inner wall of the first vibration damping structure and the outer wall of the second vibration damping structure.

[0013] In one embodiment, there are a plurality of the connection structures, and in an arrangement direction from the second end to the first end, the plurality of connection structures are arranged at intervals.

[0014] In one embodiment, the distance between the inner wall of the first vibration damping structure and the outer wall of the second vibration damping structure is 2 mm-8 mm; and / or

[0015] The cavity passes through the second end, and an end surface of the second vibration-damping structure away from the first end is flush with an end surface of the second end; and / or

[0016] The thickness of the connecting structure, the thickness of the second vibration damping structure and the thickness of the first vibration damping structure increase in sequence.

[0017] In one embodiment, one end of the second vibration damping structure protrudes out of the first end and is sleeved with a limiting portion, the limiting portion and the first end define a limiting groove, and the limiting groove is used to prevent the compressor from separating from the vibration damping pad.

[0018] The present invention also provides a household appliance, comprising:

[0019] Base plate;

[0020] The above-mentioned vibration-damping foot pad, wherein the second end is connected to the base plate; and

[0021] The compressor has a bottom angle, wherein the bottom angle abuts against the first end.

[0022] In one embodiment, when the vibration-damping foot pad has a limiting groove, a mounting hole is provided on the bottom corner, and the bottom corner is sleeved on the second vibration-damping structure through the mounting hole and is limited between the limiting portion and the first end;

[0023] The inner diameter of the mounting hole is larger than the outer diameter of the second vibration damping structure; and / or

[0024] The opening width of the limiting groove is greater than or equal to the thickness of the bottom corner.

[0025] In the above-mentioned vibration-damping foot pad, the second vibration-damping structure is loosely matched with the first vibration-damping structure and is connected by a connecting structure, so that the main part of the above-mentioned vibration-damping foot pad (the second vibration-damping structure and the first vibration-damping structure) has a hollow part and is not a solid structure. The lateral stiffness (that is, the horizontal stiffness, that is, the horizontal direction determined by the X-axis and the Y-axis in the three-dimensional rectangular coordinate system) of the vibration-damping foot pad is small, and then after the vibration generated by the operation of the compressor is transmitted to the first vibration-damping structure, a smaller part of the vibration can be transmitted to the second vibration-damping structure through the connecting structure. In this way, even after the mounting bolt is in direct contact with the inner wall of the mounting channel, the vibration that can be transmitted to the mounting bolt through the second vibration-damping structure is very small (very weak), thereby avoiding resonance between the mounting bolt and the base plate. Therefore, the above-mentioned vibration-damping foot pad has a good vibration-damping effect, which is conducive to obtaining household appliances with low vibration noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0027] Figure 1 A schematic diagram of the three-dimensional structure of a household appliance according to an embodiment of the present invention;

[0028] Figure 2 for Figure 1 A schematic diagram of a three-dimensional exploded structure of a household appliance shown;

[0029] Figure 3 for Figure 1 The three-dimensional structural schematic diagram of the vibration-damping foot pad of the household appliance shown;

[0030] Figure 4 for Figure 3 A side view of the vibration damping foot pad is shown;

[0031] Figure 5 for Figure 3 A top view of the vibration-damping foot pad shown;

[0032] Figure 6 For along Figure 5 Schematic diagram of the cross section of line AA in FIG.

[0033] Figure 7 for Figure 6The structure diagram of the vibration-damping foot pad shown in one embodiment is fixed to the base plate by mounting bolts;

[0034] Figure 8 for Figure 6 The structure schematic diagram of the vibration-damping foot pad shown is fixed to the base plate by mounting bolts in another embodiment.

[0035] Description of Figure Numbers:

[0036] Label name Label name 10 Home appliances 200 Base Plate 300 compressor 400 Vibration-damping pads 310 Bottom Angle 500 Mounting Bolts 600 Gasket 700 Nuts 410 The first vibration damping structure 420 Second vibration damping structure 430 Connection structure 412 First End 414 Second end 416 Cavity 422 Installation channel 424 Limiting part 400a Limit slot 312 Mounting holes 424a Round Corners 432 Reinforcement

[0037] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0040] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if the meaning of "and / or" appearing in the full text is to include three parallel schemes, taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0041] The invention provides a household appliance.

[0042] In the embodiment of the present invention, Figure 1 and Figure 2As shown, the household appliance 10 includes a bottom plate 200, a compressor 300 and a vibration-damping foot pad 400. In some embodiments, the household appliance 10 is a refrigerator, in which case the bottom plate 200 may be the bottom plate of the refrigerator's box. In some embodiments, the household appliance 10 is a split-type air conditioner, in which case the bottom plate 200 may be the bottom plate of the box of the air conditioner outdoor unit. In some embodiments, the household appliance 10 is a window air conditioner, in which case the bottom plate 200 may be the bottom plate of the box of the window air conditioner.

[0043] The vibration-damping pad 400 connects the bottom plate 200 and the compressor 300. When the compressor 300 is working, vibration will be generated. By connecting the bottom plate 200 and the compressor 300 through the vibration-damping pad 400, the vibration generated by the compressor 300 can be effectively prevented from being transmitted to the bottom plate 200, so that the household appliance 10 with relatively small vibration noise can be obtained.

[0044] Specifically, in the present embodiment, the vibration-damping pad 400 connects the bottom plate 200 and the bottom corner 310 of the compressor 300. More specifically, in the present embodiment, the compressor 300 has two bottom corners 310, and the two bottom corners 310 are located at opposite ends of the bottom of the compressor 300. At this time, it can be considered that the two bottom corners 310 are arranged at intervals along the first direction. Each bottom corner 310 is connected to the bottom plate 200 through at least one vibration-damping pad 400. Specifically, in the present embodiment, each bottom corner 310 is connected to the bottom plate 200 through a plurality of vibration-damping pads 400, and the plurality of vibration-damping pads 400 are arranged at intervals along the second direction, and the second direction is perpendicular to the first direction. More specifically, in the present embodiment, each bottom corner 310 is connected to the bottom plate 200 through two vibration-damping pads 400.

[0045] In this embodiment, if Figure 7 and Figure 8 As shown, the vibration-damping foot pad 400 is fixed to the bottom plate 200 of the household appliance 10 by means of mounting bolts 500, and one end of the vibration-damping foot pad 400 away from the bottom plate 200 is connected to the bottom corner 310 of the compressor 300. In this way, it is very convenient to realize that the vibration-damping foot pad 400 connects the bottom plate 200 and the bottom corner 310 of the compressor 300.

[0046] In some embodiments, Figure 7 As shown, the mounting bolt 500 is welded to the bottom plate 200. The vibration-damping foot pad 400 is sleeved on the mounting bolt 500 through the mounting channel 422. A gasket 600 is placed on the upper surface of the vibration-damping foot pad 400, and a nut 700 is screwed into the top of the mounting bolt 500 to press the gasket 600, so that the vibration-damping foot pad 400 is fixed to the bottom plate 200 of the household appliance 10.

[0047] In some embodiments, Figure 8As shown, the rod 510 of the mounting bolt 500 passes through the mounting channel 422 and the through hole on the base plate 200 in sequence, and the nut 700 is located on the side of the base plate 200 away from the vibration-damping pad 400, and is screwed into the rod 510 of the mounting bolt 500, so that the head 520 of the mounting bolt 500 is pressed on the upper surface of the vibration-damping pad 400, so that the vibration-damping pad 400 is fixed on the base plate 200 of the household appliance 10.

[0048] Normally, the outer diameter of the mounting bolt 500 is smaller than the inner wall of the mounting channel 422. Therefore, under ideal conditions, the mounting bolt 500 can be spaced apart from the inner wall of the mounting channel 422 to avoid direct contact between the mounting bolt 500 and the inner wall of the mounting channel 422. As a result, the vibration generated by the compressor 300 can completely pass through the entire height of the vibration-damping pad 400, be optimally absorbed, and then be transmitted to the bottom plate 200, thereby avoiding that part of the vibration generated by the compressor 300 does not completely pass through the entire height of the vibration-damping pad 400, that is, passes through the contact point between the inner wall of the mounting channel 422 and the mounting bolt 500 to the mounting bolt 500, and is immediately transmitted to the bottom plate 200, causing the bottom plate 200 to resonate and generate fundamental frequency (minimum natural frequency) resonance noise. In actual applications, the horizontal component of the vibration force generated by the compressor 300 during operation may cause a small displacement of the vibration-damping foot pad 400, resulting in direct contact between the mounting bolt 500 and the inner wall of the mounting channel 422. As a result, part of the vibration generated by the compressor 300 is transmitted to the mounting bolt 500 through the contact point between the inner wall of the mounting channel 422 and the mounting bolt 500, and is immediately transmitted to the bottom plate 200, causing the bottom plate 200 to resonate and generate fundamental frequency (minimum natural frequency) resonance noise.

[0049] To solve the above problems, Figure 1-Figure 6 As shown, in this embodiment, the vibration-damping foot pad 400 includes a first vibration-damping structure 410 , a second vibration-damping structure 420 and a connecting structure 430 .

[0050] The first vibration damping structure 410 has a first end 412, a second end 414, and a cavity 416. The first end 412 is connected to the compressor 300. The second end 414 is connected to the bottom plate 200. The cavity 416 runs through the first end 412. In this embodiment, the first end 412 can be considered as an end surface of the first vibration damping structure 410, that is, the first end surface, and the second end 414 can also be considered as an end surface of the first vibration damping structure 410, that is, the second end surface.

[0051] The second vibration damping structure 420 is inserted into the cavity 416 and is in clearance fit with the cavity 416. The second vibration damping structure 420 has a mounting channel 422. The mounting channel 422 is provided for the mounting bolts 500 for connecting the vibration damping pad 400 and the base plate 200 to pass through. In the present embodiment, in the arrangement direction of the first end 412 and the second end 414, that is, in the up-down direction of the vibration damping pad 400, the two ends of the mounting channel 422 respectively penetrate the two end faces of the second vibration damping structure 420, that is, the mounting channel 422 has two open ends, and the two open ends are one-to-one located on the two end faces of the second vibration damping structure 420. In other embodiments, the mounting channel 422 may also only penetrate the end face of the second vibration damping structure 420 away from the second end 414, that is, the mounting channel 422 may also only penetrate the upper end face of the second vibration damping structure 420.

[0052] The connecting structure 430 connects the inner wall of the cavity 416 (the first vibration damping structure 410) and the outer wall of the second vibration damping structure 420. It should be noted that, in the present embodiment, after the connecting structure 430 connects the inner wall of the cavity 416 (the first vibration damping structure 410) and the outer wall of the second vibration damping structure 420, there is still a gap directly located between the inner wall of the cavity 416 (the first vibration damping structure 410) and the outer wall of the second vibration damping structure 420, that is, in the present embodiment, the connecting structure 430 cannot completely fill the gap between the inner wall of the cavity 416 (the first vibration damping structure 410) and the outer wall of the second vibration damping structure 420.

[0053] In the related art, the main body of the vibration-damping foot pad 400 (other parts except the mounting channel 422) is a solid structure, and the lateral stiffness (i.e., horizontal stiffness) of the vibration-damping foot pad 400 is relatively large. When the mounting bolt 500 directly contacts the inner wall of the mounting channel 422, most of the vibration generated by the compressor 300 is transmitted to the mounting bolt 500 through the contact point between the inner wall of the mounting channel 422 and the mounting bolt 500, and is immediately transmitted to the bottom plate 200, causing the bottom plate 200 to resonate and generate fundamental frequency (minimum natural frequency) resonance noise.

[0054] In the above-mentioned vibration-damping foot pad 400, the second vibration-damping structure 420 and the first vibration-damping structure 410 are loosely matched and connected by the connecting structure 430, so that the main part of the above-mentioned vibration-damping foot pad 400 (the second vibration-damping structure 420 and the first vibration-damping structure 410) has a hollow part and is not a solid structure. The lateral stiffness (i.e., horizontal stiffness, i.e., the horizontal direction determined by the X-axis and the Y-axis in the three-dimensional rectangular coordinate system) of the vibration-damping foot pad 400 is small, and then after the vibration generated by the operation of the compressor 300 is transmitted to the first vibration-damping structure 410, a small part of the vibration can be transmitted to the second vibration-damping structure 420 through the connecting structure 430. In this way, even after the mounting bolt 500 is in direct contact with the inner wall of the mounting channel 422, the vibration that can be transmitted to the mounting bolt 500 through the second vibration-damping structure 420 is very small (very weak), so that the resonance between the mounting bolt 500 and the bottom plate 200 can be avoided. Therefore, the above-mentioned vibration-damping foot pad 400 has a good vibration-damping effect, which is conducive to obtaining a household appliance 10 with low vibration noise.

[0055] In this embodiment, the first end 412 is connected to the compressor 300, which means that the bottom corner 310 of the compressor 300 is pressed on the first end 412. Generally, the weight of the compressor 300 is relatively large, and when the compressor 300 is not working, the bottom corner 310 of the compressor 300 can be stably pressed on the first end 412, while when the compressor 300 is working, the vibration generated by the operation of the compressor 300 may cause the compressor 300 to separate from the vibration-damping foot pad 400.

[0056] In order to solve the above problem, in this embodiment, one end of the second vibration damping structure 420 protrudes out of the first end 412. A limiting portion 424 is sleeved on the one end of the second vibration damping structure 420 protruding out of the first end 412. The limiting portion 424 and the first end 412 define a limiting groove 400a. The limiting groove 400a is used to prevent the compressor 300 from being separated from the vibration damping pad 400. Among them, a mounting hole 312 is opened on the bottom corner 310 of the compressor 300, and the inner diameter of the mounting hole 312 is smaller than the outer diameter of the limiting portion 424. During assembly, the limiting portion 424 passes through the mounting hole 312 by extrusion deformation, so that the bottom corner 310 of the compressor 300 is sleeved on the second vibration damping structure 420 and limited between the limiting portion 424 and the first end 412. The limiting groove 400a defined by the limiting portion 424 and the first end 412 can effectively prevent the compressor 300 from being separated from the vibration damping pad 400.

[0057] It can be understood that in other embodiments, when the first end 412 is connected to the compressor 300, that is, when the bottom corner 310 of the compressor 300 is pressed on the first end 412, and the first vibration damping structure 410 is connected to the bottom corner 310 of the compressor 300 through a connecting member, the above-mentioned limiting portion 424 can be omitted, and the second vibration damping structure 420 may not protrude outside the first end 412.

[0058] In this embodiment, the inner diameter of the mounting hole 312 is larger than the outer diameter of the second vibration damping structure 420. In this way, the probability that the inner wall of the mounting hole 312 of the bottom corner 310 directly contacts the outer wall of the second vibration damping structure 420 can be reduced, and the probability that the vibration generated by the compressor 300 is directly transmitted to the second vibration damping structure 420 through the bottom corner 310 can be reduced, thereby reducing the vibration transmitted to the mounting bolt 500 through the second vibration damping structure 420, and further avoiding the resonance of the mounting bolt 500 and the bottom plate 200. It should be noted that when the compressor 10 is working, even if the inner diameter of the mounting hole 312 is larger than the outer diameter of the second vibration damping structure 420, it is possible that the inner wall of the mounting hole 312 of the bottom corner 310 directly contacts the outer wall of the second vibration damping structure 420, but the bottom corner 310 of the compressor 300 is mainly pressed on the first end 412, and even if the inner wall of the mounting hole 312 of the bottom corner 310 directly contacts the outer wall of the second vibration damping structure 420, the vibration that can be transmitted to the mounting bolt 500 is very small.

[0059] In this embodiment, in the arrangement direction of the first end 412 and the second end 414, the opening width of the limiting groove 400a is greater than or equal to the thickness of the bottom corner 310. In this way, when the bottom corner 310 is assembled on the vibration-damping foot pad 400, the bottom corner 310 is usually spaced from the limiting portion 424. In this way, the probability of the bottom corner 310 contacting the limiting portion 424 can be reduced, and the probability of the vibration generated by the compressor 300 being transmitted to the second vibration-damping structure 420 through the bottom corner 310 can be reduced, thereby reducing the vibration transmitted to the mounting bolt 500 through the second vibration-damping structure 420, and further avoiding the resonance between the mounting bolt 500 and the bottom plate 200. It should be noted that when the compressor 10 is working, even if the bottom angle 310 is spaced from the limit portion 424, it is possible that the bottom angle 310 and the limit portion 424 are in contact. However, the bottom angle 310 of the compressor 300 is mainly pressed on the first end 412. Even if the bottom angle 310 and the limit portion 424 are in contact, the vibration that can be transmitted to the mounting bolt 500 is very small.

[0060] In this embodiment, a rounded corner 424 a is disposed at one end of the limiting portion 424 away from the first end 412 , so that the limiting portion 424 can pass through the mounting hole 312 more easily.

[0061] In the present embodiment, the limiting portion 424 is annular. The outer diameter of the limiting portion 424 is the same as the inner diameter of the cavity 416. The outer diameter of the limiting portion 424 is smaller than the inner diameter of the cavity 416, and the limiting effect of the limiting portion 424 on the bottom angle 310 of the compressor 300 is limited. The outer diameter of the limiting portion 424 is larger than the inner diameter of the cavity 416, which increases the difficulty of the limiting portion 424 passing through the mounting hole 312, which is not conducive to assembly. Specifically, in the present embodiment, the outer diameter of the limiting portion 424 is 16mm-22mm. More specifically, in the present embodiment, the outer diameter of the limiting portion 424 is 19mm.

[0062] In the present embodiment, the spacing between the inner wall of the first vibration damping structure 410 and the outer wall of the second vibration damping structure 420 is 2mm-8mm. When the outer diameter of the second vibration damping structure 420 is constant, if the spacing between the inner wall of the first vibration damping structure 410 and the outer wall of the second vibration damping structure 420 is too large, the outer diameter of the vibration damping pad 400 will be too large, which is not conducive to the vibration damping pad 400 being suitable for the household appliance 10, while if the spacing between the inner wall of the first vibration damping structure 410 and the outer wall of the second vibration damping structure 420 is too small, it is not conducive to reducing the lateral rigidity of the vibration damping pad 400. Taking the above factors into consideration, the spacing between the inner wall of the first vibration damping structure 410 and the outer wall of the second vibration damping structure 420 is set to 2mm-8mm. Specifically, in the present embodiment, the spacing between the inner wall of the first vibration damping structure 410 and the outer wall of the second vibration damping structure 420 is 5mm.

[0063] In this embodiment, the outer diameter of the first vibration damping structure 410 is 25 mm-31 mm, and the outer diameter of the second vibration damping structure 420 is 11 mm-17 mm. Specifically, in this embodiment, the outer diameter of the first vibration damping structure 410 is 28 mm, and the outer diameter of the second vibration damping structure 420 is 14 mm.

[0064] In this embodiment, the height of the first vibration reduction structure 410 is 13 mm-19 mm. Specifically, in this embodiment, the height of the first vibration reduction structure 410 is 16 mm.

[0065] In this embodiment, the inner diameter of the second vibration reduction structure 420 is 5.5 mm-11.5 mm. Specifically, in this embodiment, the inner diameter of the second vibration reduction structure 420 is 8.5 mm.

[0066] In this embodiment, the inner wall and the outer wall of the first vibration-damping structure 410 are both cylindrical structures. The inner wall and the outer wall of the second vibration-damping structure 420 are also both cylindrical structures.

[0067] In other embodiments, the inner wall and the outer wall of the first vibration damping structure 410 may also be other structures, such as a polygonal structure, and similarly, the inner wall and the outer wall of the second vibration damping structure 420 may also be other structures, such as a polygonal structure. In this case, the inner diameter and the outer diameter of the first vibration damping structure 410 are the equivalent inner diameter and the equivalent outer diameter of the above inner diameter and the outer diameter, and the inner diameter and the outer diameter of the second vibration damping structure 420 are also the equivalent inner diameter and the equivalent outer diameter of the above inner diameter and the outer diameter.

[0068] In this embodiment, the structure of the inner wall of the first vibration damping structure 410 is the same as the structure of the outer wall of the second vibration damping structure 420. It is understood that in other embodiments, the structure of the inner wall of the first vibration damping structure 410 and the structure of the outer wall of the second vibration damping structure 420 may also be different.

[0069] In this embodiment, the thickness of the connecting structure 430, the thickness of the second vibration damping structure 420, and the thickness of the first vibration damping structure 410 increase in sequence. In this way, the first vibration damping structure 410 can have a good supporting strength, and the connecting structure 430 can have a good deformation ability, so that the lateral rigidity of the vibration damping pad 400 can be further reduced. Specifically, in this embodiment, the thickness of the first vibration damping structure 410 is 3.5mm-5.5mm, the thickness of the second vibration damping structure 420 is 2.25mm-3.25mm, and the thickness of the connecting structure 430 is 1.2mm-1.8mm. More specifically, in this embodiment, the thickness of the first vibration damping structure 410 is 4.5mm, the thickness of the second vibration damping structure 420 is 2.75mm, and the thickness of the connecting structure 430 is 1.5mm.

[0070] In this embodiment, the cavity 416 passes through the second end 414. The end surface of the second vibration-damping structure 420 away from the first end 412 is flush with the end surface of the second end 414. In this way, when the vibration-damping foot pad 400 is fixed to the bottom plate 200 by installing the bolts 500, the second vibration-damping structure 420 and the first vibration-damping structure 410 can both contact the bottom plate 200, so that the vibration-damping foot pad 400 can be more firmly fixed to the bottom plate 200.

[0071] It can be understood that in other embodiments, the cavity 416 can also pass through the second end 414. In this case, the end of the first vibration-damping structure 410 away from the first end 412 is a closed end, and has a closed plate located at the end, and the surface of the closed plate away from the first end 412 is the end surface of the second end 414. The end surface of the second vibration-damping structure 420 away from the first end 412 is connected to the surface of the closed plate close to the first end 412. In this way, the closed plate can be fixed to the bottom plate 200 by installing bolts 500, so that the vibration-damping foot pad 400 is fixed to the bottom plate 200.

[0072] In this embodiment, the connection structure 430 is tilted relative to the arrangement direction of the first end 412 and the second end 414, that is, the connection structure 430 is tilted relative to the first vibration damping structure 410. In this way, part of the vibration generated by the operation of the compressor 300 can be decomposed into lateral vibration (horizontal vibration) and longitudinal vibration (vertical vibration) along the connection structure 430 during the process of being transmitted to the second vibration damping structure 420 through the connection structure 430, and the longitudinal vibration (vertical vibration) cannot act on the second vibration damping structure 420. Therefore, the connection structure 430 is tilted relative to the first vibration damping structure 410, which can further prevent the vibration from being transmitted to the second vibration damping structure 420, further prevent the resonance of the bottom plate 200, and generate fundamental frequency (minimum natural frequency) resonance noise. Moreover, by adjusting the tilt angle of the connection structure 430 tilted relative to the first vibration damping structure 410, the lateral vibration (horizontal vibration) and longitudinal vibration (vertical vibration) can be adjusted, so as to produce a vibration damping pad 400 that meets the needs of different applications.

[0073] In this embodiment, the connection structure 430 and the arrangement direction of the first end 412 and the second end 414 form an angle α with the opening facing the first end 412, that is, the connection structure 430 and the inner wall of the first vibration reduction structure 410 form an angle α with the opening facing the first end 412. The angle α is 30°-60°. In this way, the lateral vibration (horizontal vibration) and the longitudinal vibration (vertical vibration) can be made substantially the same. Specifically, in this embodiment, the angle α is 45°.

[0074] In this embodiment, in the arrangement direction from the first end 412 to the second end 414, that is, in the up-down direction of the vibration-damping foot pad 400, the lower end of the connecting structure 430 is connected to the inner wall of the first vibration-damping structure 410, and the upper end of the connecting structure 430 is connected to the outer wall of the second vibration-damping structure 420. In this way, the vibration direction of the longitudinal vibration (vertical vibration) is toward the first end 412, so that the longitudinal vibration (vertical vibration) can be fully absorbed by the vibration-damping foot pad 400 and then transmitted to the second end 414 (bottom plate 200). It can be understood that in other embodiments, in the arrangement direction from the first end 412 to the second end 414, the upper end of the connecting structure 430 can also be connected to the inner wall of the first vibration-damping structure 410, and the lower end of the connecting structure 430 can be connected to the outer wall of the second vibration-damping structure 420.

[0075] In this embodiment, the connection structure 430 includes a plurality of reinforcing ribs 432, which are arranged at intervals and surround the second vibration-damping structure 420. In this way, the vibration-damping foot pad 400 is not only structurally stable, but also convenient for reducing the lateral rigidity of the vibration-damping foot pad 400. Moreover, by providing different numbers of reinforcing ribs 432, the lateral vibration (horizontal vibration) and longitudinal vibration (vertical vibration) can be adjusted, thereby producing a vibration-damping foot pad 400 that meets the needs of different applications.

[0076] It can be understood that in other embodiments, the connection structure 430 can also be a hollow truncated cone structure, the large end of the truncated cone structure is connected to one of the inner wall of the first vibration damping structure 410 and the outer wall of the second vibration damping structure 420, and the small end of the truncated cone structure is connected to the other of the inner wall of the first vibration damping structure 410 and the outer wall of the second vibration damping structure 420. In this way, the structure of the vibration damping foot pad 400 is more stable. Specifically, in this embodiment, one connection structure 430 includes four reinforcing ribs 432.

[0077] In this embodiment, there are multiple connection structures 430. In the arrangement direction from the first end 412 to the second end 414, the multiple connection structures 430 are arranged at intervals. In this way, the structure of the vibration-damping foot pad 400 is stable. Moreover, by setting different numbers of connection structures 430, the lateral vibration (horizontal vibration) and longitudinal vibration (vertical vibration) can be adjusted, thereby producing a vibration-damping foot pad 400 that meets the needs of different applications. Specifically, in this embodiment, there are two connection structures 430.

[0078] It can be understood that the vibration-damping foot pad 400 has elastic deformation performance. Specifically, in this embodiment, the vibration-damping foot pad 400 is made of rubber, that is, the first vibration-damping structure 410, the second vibration-damping structure 420, the connecting structure 430 and the limiting portion 424 are all made of rubber.

[0079] It is understood that the above-mentioned vibration-damping foot pad 400 is used in the household appliance 10 having the compressor 300. It is understood that in other embodiments, the above-mentioned vibration-damping foot pad 400 can also be used in other devices having the compressor 300, and the other devices are not the household appliance 10. It is understood that in other embodiments, the above-mentioned vibration-damping foot pad 400 can also be used in a device not having the compressor 300, and the device can be the household appliance 10 or not.

[0080] The above descriptions are only optional embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A vibration-damping foot pad for connecting a compressor and a base plate of a household appliance, characterized in that: include: a first vibration reduction structure having a first end connected to the compressor, a second end for connecting to the bottom plate, and a cavity extending through the first end; A second vibration reduction structure is inserted into the cavity and is gap-matched with the cavity, and the second vibration reduction structure has a mounting channel for mounting bolts to pass through; as well as a connecting structure, connecting an inner wall of the first vibration damping structure and an outer wall of the second vibration damping structure, wherein a gap is provided between the inner wall of the first vibration damping structure and the outer wall of the second vibration damping structure so that the cavity passing through the first end is continuous; There are multiple connecting structures, and in the arrangement direction from the second end to the first end, the multiple connecting structures are arranged at intervals. The connecting structure is inclined relative to the first vibration damping structure. The connecting structure includes multiple reinforcing ribs that are arranged at intervals and surround the second vibration damping structure. The connecting structure is a hollow truncated cone structure.

2. The vibration-damping foot pad according to claim 1, characterized in that: The connection structure is arranged obliquely relative to an arrangement direction of the first end and the second end.

3. The vibration-damping foot pad according to claim 2, characterized in that: The connection structure and the arrangement direction of the first end and the second end form an angle with the opening facing the first end, and the angle is 30°-60°.

4. The vibration-damping foot pad according to claim 2, characterized in that: In the arrangement direction from the first end to the second end, the lower end of the connecting structure is connected to the inner wall of the first vibration damping structure, and the upper end of the connecting structure is connected to the outer wall of the second vibration damping structure, or the upper end of the connecting structure is connected to the inner wall of the first vibration damping structure, and the lower end of the connecting structure is connected to the outer wall of the second vibration damping structure.

5. The vibration-damping foot pad according to claim 2, characterized in that: The large end of the truncated cone structure is connected to one of the inner wall of the first vibration damping structure and the outer wall of the second vibration damping structure, and the small end of the truncated cone structure is connected to the other of the inner wall of the first vibration damping structure and the outer wall of the second vibration damping structure.

6. The vibration-damping foot pad according to claim 1, characterized in that: The distance between the inner wall of the first vibration damping structure and the outer wall of the second vibration damping structure is 2 mm-8 mm; and / or The cavity passes through the second end, and an end surface of the second vibration-damping structure away from the first end is flush with an end surface of the second end; and / or The thickness of the connecting structure, the thickness of the second vibration damping structure and the thickness of the first vibration damping structure increase in sequence.

7. The vibration-damping foot pad according to claim 1, characterized in that: One end of the second vibration-damping structure protrudes out of the first end and is sleeved with a limiting portion, the limiting portion and the first end define a limiting groove, and the limiting groove is used to prevent the compressor from being separated from the vibration-damping foot pad.

8. A household appliance, characterized in that: include: Base plate; The vibration-damping foot pad according to any one of claims 1 to 7, wherein the second end is connected to the base plate; as well as The compressor has a bottom angle, wherein the bottom angle abuts against the first end.

9. The household appliance according to claim 8, characterized in that: One end of the second vibration-damping structure protrudes out of the first end and is sleeved with a limiting portion, and the limiting portion and the first end define a limiting groove; When the vibration-damping foot pad has the limiting groove, a mounting hole is provided on the bottom corner, and the bottom corner is sleeved on the second vibration-damping structure through the mounting hole and is limited between the limiting portion and the first end; The inner diameter of the mounting hole is larger than the outer diameter of the second vibration damping structure; and / or The opening width of the limiting groove is greater than or equal to the thickness of the bottom corner.

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