Vibration isolator, vibration isolation assembly for household appliance and household appliance

Abstract

The invention relates to the technical field of household appliances, and discloses a vibration isolator, which comprises an upper base, a lower base, a lower base and a connecting piece, the first ends of the multiple ribs are connected with the upper base, and each rib is provided with a first buffer groove; the lower base is connected with the second ends of the ribs and used for being fixedly installed on an external structural part at the position where the vibration source is located. According to the vibration isolator, the first buffer grooves are formed in the ribs, so that the vibration isolator has high static rigidity and low dynamic rigidity, namely, the vibration isolator has low inherent frequency and high bearing capacity. In this way, the vibration absorption and isolation effects of the vibration isolator are improved, and noise generated when the household appliance with the vibration isolator operates is reduced. The invention further discloses a vibration isolation assembly for the household appliance and the household appliance.

Description

Technical Field

[0001] The present application relates to the technical field of household appliances, for example, to a vibration isolator, a vibration isolation component for household appliances, and household appliances. Background Art

[0002] Currently, household appliances are often equipped with components that generate vibrations during operation (i.e., vibration sources), such as compressors, motors, and booster pumps. Because the vibration sources are mounted on the housing of the appliance, they generate considerable noise during operation.

[0003] In the related art, to reduce the noise generated by household appliances during operation, vibration isolators are typically installed beneath the vibration source. These isolators absorb and isolate vibrations, improving the housing's isolation efficiency against the vibration source, minimizing vibration transmission and reducing noise. This indicates that the effectiveness of the isolator directly impacts the vibration noise generated by the appliance during operation. Therefore, developing a vibration isolator with superior isolation performance has become a pressing technical challenge.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to ordinary technicians in this field. Summary of the Invention

[0005] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical elements or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0006] The embodiments of the present disclosure provide a vibration isolator, a vibration isolation assembly for a household appliance, and the household appliance, which can improve the vibration isolation effect of the vibration isolator and reduce the noise during operation of the household appliance.

[0007] In some embodiments, the vibration isolator includes: an upper base for connecting to a vibration source; ribs, wherein the first ends of a plurality of ribs are connected to the upper base, and each rib is provided with a first buffer groove; and a lower base, connected to the second ends of the plurality of ribs, for fixing an external structural member installed at the location of the vibration source.

[0008] Optionally, the angle between each rib and the outer portion of the lower base is an acute angle, a right angle or an obtuse angle.

[0009] Optionally, the first buffer groove is opened on the rib in a manner parallel to the plane where the lower base is located, and the number of the first buffer grooves provided on each rib is one or more.

[0010] Optionally, when the number of the first buffer groove provided on each rib is one, the first buffer groove is located at the midpoint between the first end and the second end of the rib;

[0011] In the case that there are multiple first buffer grooves provided on each rib, the multiple first buffer grooves are distributed along the length direction of the rib; and the distribution of the multiple first buffer grooves on each rib is consistent.

[0012] Optionally, the first buffer groove is provided on the inner wall or the outer wall of the rib.

[0013] Optionally, the number of the ribs is greater than or equal to 3, and the plurality of ribs are evenly distributed on a circle with the center axis of the vibration isolator as the center.

[0014] Optionally, a second buffer groove is provided at the connection between the rib and the lower base.

[0015] In some embodiments, a vibration isolation assembly for household appliances includes: a base plate; one or more vibration isolators as described above, wherein the one or more vibration isolators are mounted on the base plate and used to install a vibration source of the household appliance.

[0016] Optionally, when there are multiple vibration isolators, the multiple vibration isolators are evenly distributed on a circle with the central axis point of the bottom plate as the center.

[0017] In some embodiments, a household appliance includes: a vibration isolator as described above or a vibration isolation assembly for a household appliance as described above, installed on a housing of the household appliance; and a vibration source, installed on the vibration isolator or the vibration isolation assembly for the household appliance.

[0018] The vibration isolator, the vibration isolation assembly for home appliances, and the home appliances provided by the embodiments of the present disclosure can achieve the following technical effects:

[0019] In the disclosed embodiment, the vibration isolator includes an upper base, ribs, and a lower base. The upper base is used to connect to the vibration source, the lower base is mounted on an external structural member (e.g., the housing of a household appliance) where the vibration source is located, and the ends of the multiple ribs are connected to the upper and lower bases, respectively.

[0020] Specifically, research has found that if the vibration isolator is to have good vibration absorption and isolation effects, it needs to have a lower natural frequency and a higher load-bearing capacity, that is, the static stiffness of the vibration isolator needs to be high and the dynamic stiffness needs to be low.

[0021] Therefore, in the embodiment of the present disclosure, a first buffer groove is provided on each rib. When the vibration isolator begins to bear the load, that is, when the ribs are in the initial stress-bearing stage, a small amount of deformation will occur. At this stage, the support stiffness of the vibration isolator is greater than 0. As the load on the vibration isolator increases, the ribs bend to a certain extent, and the vibration isolator will enter the instability stage. At this stage, the support stiffness of the vibration isolator is approximately 0. After the deformation of the ribs reaches a certain extent, the upper and lower surfaces of the first buffer groove will contact each other to provide support stiffness. At this stage, the support stiffness of the vibration isolator will increase and be greater than 0 again. In this way, the vibration isolator has both high static stiffness and low dynamic stiffness, which improves the vibration absorption and isolation effects of the vibration isolator and reduces the noise during the operation of household appliances.

[0022] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] One or more embodiments are exemplarily described by corresponding drawings. These exemplary descriptions and drawings do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a scale limitation. In addition,

[0024] Figure 1 is a schematic diagram of a cross section of a vibration isolator provided in an embodiment of the present disclosure;

[0025] Figure 2 is a schematic diagram of the angle between the rib and the lower base provided in an embodiment of the present disclosure;

[0026] Figure 3 1 is a schematic diagram of the distribution of the first buffer grooves on the ribs when the number of the first buffer grooves provided by the embodiment of the present disclosure is one;

[0027] Figure 4 is a schematic diagram of the distribution of the first buffer grooves on the ribs when there are multiple first buffer grooves provided in an embodiment of the present disclosure;

[0028] Figure 5 is a schematic diagram of a vibration isolation assembly for household appliances provided by an embodiment of the present disclosure;

[0029] Figure 6 Schematic diagram of the distribution of vibration sources with eccentric center of gravity in the related art;

[0030] Figure 7 It is a schematic diagram of a household appliance provided by an embodiment of the present disclosure.

[0031] Description of reference numerals:

[0032] 100. Vibration isolator;

[0033] 110, upper base; 120, rib; 121, first buffer groove; 130, lower base; 131, second buffer groove;

[0034] 200. Vibration isolation components for household appliances;

[0035] 210, bottom plate;

[0036] 300. Household appliances;

[0037] 310. Vibration source. DETAILED DESCRIPTION

[0038] In order to be able to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The accompanying drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0039] In the description and claims of the embodiments of the present disclosure, as well as in the accompanying drawings, the terms "first," "second," and the like are used to distinguish similar items and are not necessarily used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate to describe the embodiments of the present disclosure herein. In addition, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.

[0040] Unless otherwise stated, the term "plurality" means two or more.

[0041] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B means: A or B.

[0042] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0043] The term "correspondence" may refer to an association relationship or a binding relationship. The correspondence between A and B means that there is an association relationship or a binding relationship between A and B.

[0044] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0045] Combine Figures 1 to 4As shown, an embodiment of the present disclosure provides a vibration isolator 100. The vibration isolator 100 includes an upper base 110, a plurality of ribs 120, and a lower base 130. The upper base 110 is configured to be connected to a vibration source. The first ends of the plurality of ribs 120 are connected to the upper base 110, and each rib 120 is provided with a first buffer groove 121. The lower base 130 is connected to the second ends of the plurality of ribs 120 and is configured to securely mount an external structural member at the location of the vibration source.

[0046] Specifically, the vibration isolator 100 is made of elastic material (for example, rubber, spring, etc.). The elastic material itself can achieve a good vibration reduction effect, and the elastic material will consume part of the vibration energy and dissipate it in the form of heat energy, which is beneficial to improving the vibration absorption and isolation effects of the vibration isolator 100.

[0047] For example, by adjusting the material formula of the elastic material, a vibration isolator 100 with greater damping performance and the ability to quickly attenuate vibration energy can be designed, thereby achieving an ultra-low frequency vibration isolation effect.

[0048] Optionally, the vibration isolator 100 is integrally formed, that is, the upper base 110, the plurality of ribs 120, and the lower base 130 are integrally formed. This can improve the structural tightness of the vibration isolator 100 and further enhance the vibration absorption and isolation effects of the isolator.

[0049] Optionally, the vibration isolator 100 employs an assembled design, where the upper base 110, the plurality of ribs 120, and the lower base 130 are not integrally formed but are connected together through assembly. This allows the vibration isolator 100 to continue functioning by simply replacing the damaged component if any of the upper base 110, ribs 120, or lower base 130 becomes damaged. This reduces the cost of repairing and maintaining the vibration isolator 100.

[0050] In the disclosed embodiment, the upper base 110 is used to connect to a vibration source, which refers to a component that generates vibration, such as a compressor, motor, and booster pump in a household appliance. The structure of the upper base 110 is sufficient to connect to the vibration source.

[0051] Optionally, the plane where the upper base 110 contacts the vibration source is a circular plane.

[0052] Specifically, the contact plane between the upper base 110 and the vibration source is an annular plane, which can increase the base area between the vibration isolator 100 and the vibration source. This can improve the efficiency of the vibration source in transmitting vibration energy to the vibration isolator 100, allowing the vibration isolator 100 to fully release the vibration energy.

[0053] Specifically, in the related art, in order to reduce the noise during the operation of household appliances, vibration isolators are usually installed under the vibration source. Multiple vibration isolators can absorb and isolate vibrations, improve the vibration isolation efficiency of the outer shell to the vibration source, reduce the transmission of vibration, and reduce noise.

[0054] However, if the vibration isolator's vibration absorption and isolation performance is poor, even if the isolator is installed below the vibration source, the appliance will still produce high noise levels during operation. Analysis suggests that maintaining good vibration absorption and isolation performance requires a low natural frequency and a high load-bearing capacity. To achieve a low natural frequency, the isolator's dynamic stiffness must be reduced. To achieve a high load-bearing capacity, the isolator's static stiffness must be increased.

[0055] Therefore, in the vibration isolator 100 of the disclosed embodiment, a first buffer groove 121 is provided on each rib 120. This allows the isolator 100 to deform slightly when it begins to bear load, i.e., during the initial load-bearing phase. During this phase, the support stiffness of the isolator 100 is greater than 0, and the isolator 100 exhibits good position-limiting properties and impact resistance (i.e., high static stiffness). As the load increases, the rib 120 bends to a certain degree, and the isolator 100 enters an unstable phase, where the slope of the compression stiffness curve is very small. During this phase, the support stiffness of the isolator 100 is approximately 0 (i.e., low dynamic stiffness). After the rib 120 deforms to a certain degree, the isolator 100 enters a position-limiting control phase, where the two surfaces of the first buffer groove 121 come into contact, providing support stiffness. During this phase, the support stiffness of the isolator 100 increases, again exceeding 0, and provides good position-limiting properties and impact resistance (i.e., high static stiffness). Thus, the vibration isolator 100 provided in the embodiment of the present disclosure has both high static stiffness and low dynamic stiffness, that is, the vibration isolator 100 has a low natural frequency and a high load-bearing capacity. Therefore, the vibration isolator 100 provided in the embodiment of the present disclosure can provide excellent vibration absorption and isolation effects, reducing the noise generated by the household appliance in which it is used during operation.

[0056] In some embodiments, the depth of the first buffer groove 121 is 1 / 4 to 1 / 3 of the rib thickness.

[0057] Specifically, setting the depth of the first buffer groove 121 within the range of 1 / 4 to 1 / 3 of the rib thickness can ensure that the rib 120 has a higher support stiffness in the initial stress stage, so that the vibration isolator 100 has better limiting and impact resistance.

[0058] In some embodiments, the angle between each rib 120 and the outer portion of the lower base 130 is within a set range;

[0059] Optionally, the setting range is 30 degrees to 150 degrees.

[0060] Alternatively, as Figure 2 As shown, the angle between each rib 120 and the lower base 130 ( Figure 2 The angle β) in is an acute angle.

[0061] Specifically, the angle between each rib 120 and the outer portion of the lower base 130 is set to an acute angle. After the rib 120 deforms to a certain extent and the upper and lower surfaces of the first buffer groove 121 contact each other, if the load on the vibration isolator 100 continues to increase, the outer surface of the rib 120 will contact the lower base 130, further increasing the support stiffness of the vibration isolator 100. This improves the position-limiting and impact resistance of the vibration isolator 100, thereby enhancing the vibration absorption and isolation effects of the vibration isolator 100.

[0062] Optionally, when the angle between each rib 120 and the lower base 130 is an acute angle, the angle ranges from 60 degrees to 75 degrees.

[0063] Optionally, the angle between each rib 120 and the lower base 130 is a right angle.

[0064] Specifically, setting the angle between each rib 120 and the outer portion of the lower base 130 to be a right angle can increase the length of the deformation range of the rib 120 when subjected to load. This facilitates the full release of vibration energy. Optionally, the angle between each rib 120 and the lower base 130 is an obtuse angle.

[0065] Specifically, when the angle between each rib 120 and the lower base 130 is obtuse, after the rib 120 deforms to a certain extent and the upper and lower surfaces of the first buffer groove 121 come into contact, if the load on the vibration isolator 100 continues to increase, the multiple ribs 120 will come into contact, further increasing the support stiffness of the vibration isolator 100. This improves the position-limiting properties and impact resistance of the vibration isolator 100, thereby enhancing the vibration absorption and isolation effects of the vibration isolator 100.

[0066] Optionally, when the included angle between each rib 120 and the lower base 130 is an obtuse angle, the included angle ranges from 135 degrees to 150 degrees.

[0067] In some embodiments, each rib 120 is an arc-shaped structure, and the first buffer groove 121 is disposed on the inner side of the arc-shaped structure.

[0068] Specifically, the curved structure of the ribs 120 increases the contact area between the ribs 120 and the lower base 130 when the outer surface of the ribs 120 contacts the lower base 130. This further increases the support stiffness of the vibration isolator 100 at this stage, thereby improving the position-limiting and impact resistance of the vibration isolator 100 and enhancing its vibration absorption and isolation effects.

[0069] In some embodiments, the first buffer grooves 121 are opened on the ribs 120 in parallel with the plane where the lower base 130 is located, and the number of first buffer grooves 121 provided on each rib 120 is one or more.

[0070] Specifically, because rib 120 is made of an elastic material, when the load on rib 120 reaches a certain level, rib 120 will bend along the location with the weakest load-bearing capacity (i.e., the location of first buffer groove 121). Therefore, first buffer groove 121 needs to be provided on rib 120 parallel to the plane of lower base 130. This ensures that the upper and lower surfaces of first buffer groove 121 can contact when rib 120 bends, thereby improving the support stiffness of vibration isolator 100.

[0071] Specifically, a first buffer groove 121 is provided on the rib 120, so that the vibration isolator 100 will not enter the unstable stage until it is subjected to a large load. In this way, the static stiffness of the vibration isolator 100 can be maintained at a high range, thereby improving the limiting performance and impact resistance of the vibration isolator 100.

[0072] Specifically, the plurality of first buffer grooves 121 provided on the ribs 120 can allow the vibration isolator 100 to undergo multiple instability stages and position limiting control stages. This allows the vibration isolator 100 to fully release the vibration energy transmitted by the vibration source, thereby improving the vibration absorption and isolation effects of the vibration isolator 100.

[0073] like Figure 3 As shown, in some embodiments, when the number of the first buffer groove 121 provided on each rib 120 is one, the first buffer groove 121 is located at the midpoint between the first end and the second end of the rib 120. Figure 3 The L in FIG represents a midline passing through the midpoint of the rib 120 and extending horizontally).

[0074] Specifically, when only one first buffer groove 121 is provided on the rib 120, the first buffer groove 121 is provided at the midpoint between the first end and the second end of the rib 120. In this way, the rib 120 can be subjected to a uniform force when bearing a load, allowing the vibration isolator 100 to fully release the vibration energy transmitted by the vibration source, thereby improving the vibration absorption and isolation effects of the vibration isolator 100.

[0075] Optionally, the first buffer groove 121 is along a midline passing through the midpoint of the rib 120 and extending horizontally (eg Figure 3 L in the figure) is symmetrically distributed.

[0076] like Figure 4 As shown, in some embodiments, when there are multiple first buffer grooves 121 set on each rib 120, the multiple first buffer grooves 121 are distributed along the length direction of the rib 120; and the distribution of the multiple first buffer grooves on each rib is consistent.

[0077] Specifically, when there are multiple first buffer grooves 121 set on the rib 120, the first buffer grooves 121 need to be set along the length direction of the rib 120, and the multiple first buffer grooves on each rib need to be distributed uniformly. In this way, when the vibration isolator 100 is under load, the bending deformation position of each rib is consistent and the force is uniform, so that the vibration isolator 100 can fully release the vibration energy transmitted by the vibration source, thereby improving the vibration absorption and vibration isolation effects of the vibration isolator 100.

[0078] Optionally, the plurality of first buffer grooves 121 are evenly distributed along the length direction of the rib 120 .

[0079] Specifically, the first buffer grooves 121 are evenly arranged along the length direction of the ribs 120 , which can further improve the uniformity of the force applied to the ribs 120 , thereby improving the effect of the vibration isolator 100 in releasing vibration energy.

[0080] In some embodiments, the number of first buffer grooves 121 on each rib 120 can be designed based on the force analysis of the vibration isolator 100. For example, for a vibration source with an eccentric center of gravity, one first buffer groove 121 can be provided on the rib 120 closer to the side with greater gravity, and multiple first buffer grooves 121 can be provided on the rib 120 farther from the side with greater gravity.

[0081] In some embodiments, the first buffer groove is disposed on the inner wall or the outer wall of the rib.

[0082] Specifically, the first buffer groove 121 is provided on the inner side wall of the rib 120. When the vibration isolator 100 bears a certain load, the rib 120 located above the first buffer groove can bend inward, while the main body of the rib 120 moves outward. This is conducive to the full release of vibration energy.

[0083] Specifically, the first buffer groove 121 is set on the outer wall of the rib 120. After the vibration isolator 100 bears a certain load, the rib 120 located above the first buffer groove can be bent outward, and at the same time, the main part of the rib 120 moves inward, and the main parts of multiple ribs 120 will contact each other. In this way, the support stiffness of the vibration isolator 100 at this stage can be further improved.

[0084] Optionally, when the angle between each rib 120 and the outer portion of the lower base 130 is an acute angle, the first buffer groove 121 is preferably provided on the inner side wall of the rib 120 .

[0085] Optionally, when the angle between each rib 120 and the outer portion of the lower base 130 is an obtuse angle, the first buffer groove 121 is preferably provided on the outer side wall of the rib 120. In some embodiments, the number of ribs 120 is greater than or equal to 3, and the plurality of ribs 120 are evenly distributed on a circle centered at the central axis of the vibration isolator 100.

[0086] Specifically, the number of ribs 120 provided on each vibration isolator 100 is at least three, and the plurality of ribs 120 need to be evenly distributed on a circle with the central axis of the vibration isolator 100 as the center. Specifically, providing at least three ribs 120 on the vibration isolator 100 can enable the vibration isolator 100 to withstand a greater load, extend the time the vibration isolator 100 is in the initial force-bearing stage, and shorten the time the vibration isolator 100 is in the instability stage and the limit control stage. In this way, when the household appliance is in operation, the vibration isolator 100 can better limit the large displacement of the vibration source. This improves the vibration absorption and isolation effects of the vibration isolator 100 and reduces the noise generated during the operation of the household appliance.

[0087] like Figure 1 As shown, in some embodiments, a second buffer groove 131 is provided at the connection between the rib 120 and the lower base 130 .

[0088] Specifically, a second buffer groove 131 is further provided on the lower base 130. After the rib 120 is deformed to a certain extent and the upper and lower surfaces of the first buffer groove 121 are in contact, if the load borne by the vibration isolator 100 continues to increase, the rib 120 is bent and deformed at the second buffer groove 131, thereby causing the upper and lower surfaces of the second buffer groove 131 to contact (the upper surface is Figure 1 The surface pointed to by B is the lower surface Figure 1 The support stiffness of the vibration isolator 100 is further increased. In this way, the position limiting property and impact resistance of the vibration isolator 100 can be improved, thereby enhancing the vibration absorption and isolation effects of the vibration isolator 100.

[0089] In some embodiments, the second buffer groove 131 is disposed at the inner side or the outer side of the connection between the rib 120 and the lower base 130 .

[0090] Optionally, when the angle between each rib 120 and the outer part of the lower base 130 is an acute angle and the first buffer groove 121 is arranged on the inner wall of the rib 120, the second buffer groove 131 is preferably arranged on the outer part of the connection between the rib 120 and the lower base 130.

[0091] Optionally, when the angle between each rib 120 and the outer part of the lower base 130 is an obtuse angle and the first buffer groove 121 is arranged on the outer wall of the rib 120, the second buffer groove 131 is preferably arranged on the inner part of the connection between the rib 120 and the lower base 130.

[0092] In some embodiments, the bottom of the second buffer groove 131 is an arc surface. That is, the connection between the rib 120 and one side of the lower base 130 forms an inwardly concave arc surface transition, which can ensure that the lower base 130 has a high support stiffness during the initial stress-bearing stage of the vibration isolator 100, thereby ensuring the position limiting and impact resistance of the vibration isolator 100.

[0093] Optionally, the second buffer groove 131 is a semicircular groove structure.

[0094] Specifically, the second buffer groove 131 is configured as a semicircular groove structure, which can ensure that the lower base 130 has a higher supporting stiffness during the initial stress-bearing stage of the vibration isolator 100 , thereby ensuring the position limiting and impact resistance of the vibration isolator 100 .

[0095] Combine Figure 5 As shown, the vibration isolation assembly 200 for household appliances provided in the embodiment of the present disclosure includes: a base plate 210 and one or more vibration isolators 100. The vibration isolators 100 are the vibration isolators 100 proposed in the above embodiment, and one or more vibration isolators 100 are installed on the base plate 210. The base plate 210 is used to connect with the housing of the household appliance, and the one or more vibration isolators 100 are used to install the vibration source ( Figure 5 A).

[0096] Specifically, household appliances are equipped with components that generate vibrations during operation (i.e., vibration sources), such as compressors, motors, and booster pumps. Since the vibration sources are mounted on the housing of the household appliances, they generate considerable noise during operation.

[0097] In related technologies, in order to reduce the noise during the operation of household appliances, a vibration isolator 100 is usually installed under the vibration source. The vibration isolator 100 can absorb and isolate vibrations, improve the vibration isolation efficiency of the housing to the vibration source, reduce the transmission of vibrations, and reduce noise.

[0098] However, when the vibration source is a device with an eccentric center of gravity, e.g. Figure 6The vibration source A shown comprises a main cylinder A1 and a side cylinder A2. Due to geometric asymmetry, the center of gravity of the vibration source A is projected at position O' rather than the geometric center axis O of the main cylinder A1. However, the vibration isolators 100 are typically evenly distributed relative to the geometric center axis O of the main cylinder A1. Therefore, the forces exerted on each vibration isolator 100 are different, and this is more pronounced in household appliances. This weakens the vibration absorption and isolation effects of the vibration isolators 100, resulting in increased noise during operation of the household appliance.

[0099] Therefore, in the disclosed embodiment, the vibration isolator 100 proposed in the above embodiment is mounted on a base plate 210 for connection to the vibration source of the household appliance, and the base plate 210 is mounted on the housing of the household appliance. Since the vibration isolator 100 proposed in the above embodiment undergoes a small amount of deformation when it begins to bear load, i.e., when the ribs are initially subjected to force, the support stiffness of the vibration isolator 100 is greater than 0. As the load increases, the ribs bend to a certain extent, and the vibration isolator 100 enters an unstable phase, with the support stiffness of the vibration isolator 100 approaching 0. After the ribs deform to a certain extent, the upper and lower surfaces of the first buffer groove contact, providing support stiffness, and the support stiffness of the vibration isolator 100 again becomes greater than 0. This ensures that the stiffness of the vibration isolator 100 is close to 0 when the load it bears is within the balanced force range. Within other load ranges, the support stiffness of the vibration isolator 100 can limit the vibration source from generating large displacements.

[0100] Therefore, the vibration isolator 100 used in the present disclosure can be in a quasi-zero stiffness range under different load conditions. Therefore, even if the vibration source on the household appliance is a device with an eccentric center of gravity, the vibration isolator 100 can still maintain good vibration absorption and isolation effects, and can still reduce the noise during the operation of the household appliance.

[0101] Furthermore, after one or more vibration isolators 100 are mounted on the bottom plate 210 and then connected to the housing of the home appliance, the vibration can be transmitted to the housing over a larger area, thereby further reducing the noise during operation of the home appliance.

[0102] In some embodiments, when there are multiple vibration isolators 100 , the multiple vibration isolators 100 are evenly distributed on a circle with the central axis point of the bottom plate 210 as the center.

[0103] Specifically, by evenly distributing multiple vibration isolators 100 along a circle centered on the mid-axis of base plate 210, base plate 210 can evenly absorb the vibration energy transmitted by the vibration source. This reduces the risk of different vibration energies being transmitted to the appliance housing at different locations on base plate 210, reduces the structure-borne noise generated by the housing receiving vibration energy, and reduces the noise generated by the operation of the appliance.

[0104] Optionally, the number of the vibration isolators 100 is greater than or equal to three.

[0105] Specifically, the number of the vibration isolators 100 is at least 3. In this way, the uniformity with which the base plate 210 bears the vibration energy transmitted by the vibration source can be improved.

[0106] Combine Figure 7 As shown, a household appliance 300 provided in an embodiment of the present disclosure includes: a vibration isolator (not shown) as described above or a vibration isolation assembly 200 for a household appliance as described above, and a vibration source 310. The vibration isolator or the vibration isolation assembly 200 for a household appliance is mounted on the housing of the household appliance 300. The vibration source 310 is mounted on the vibration isolator or the vibration isolation assembly 200 for a household appliance.

[0107] Specifically, because the vibration isolator or the vibration isolation assembly 200 for a household appliance proposed in the above-mentioned embodiment can be in a quasi-zero stiffness range under different load conditions, when the vibration isolator or the vibration isolation assembly for a household appliance is installed below the vibration source 310 of the household appliance 300, even if the vibration source 310 has an eccentric center of gravity, the vibration isolator or the vibration isolation assembly 200 for a household appliance can still effectively isolate and absorb the vibration energy generated by the vibration source 310, thereby reducing the risk of the household appliance 300 generating loud noise during operation.

[0108] The above description and the accompanying drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural, logical, electrical, process and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the words used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to also include plural forms. Similarly, the term "and / or" as used in this application refers to any and all possible combinations of one or more associated listings. In addition, when used in this application, the term "comprise" and its variations "comprises" and / or comprising refer to the presence of stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or groups of these. In the absence of further restrictions, an element defined by the sentence "comprising a..." does not exclude the presence of other identical elements in the process, method or device that includes the element. In this article, each embodiment may focus on the differences from other embodiments, and the same and similar parts between the various embodiments can be referenced to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, then the relevant parts can be found in the description of the method part.

[0109] The flowcharts and block diagrams in the accompanying drawings show the possible implementation architectures, functions and operations of the systems, methods and computer program products according to the embodiments of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, program segment or part of the code, and the module, program segment or part of the code contains one or more executable instructions for implementing the specified logical functions. In some alternative implementations, the functions marked in the box can also occur in an order different from that marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, or they can sometimes be executed in the opposite order, which can depend on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the accompanying drawings, the operations or steps corresponding to different boxes can also occur in an order different from that disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, or they can sometimes be executed in the opposite order, which can depend on the functions involved. Each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, may be implemented by a dedicated hardware-based system that performs the specified function or action, or may be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A vibration isolator, characterized in that: include: an upper base, for connecting to a vibration source; Ribs, wherein the first ends of the plurality of ribs are connected to the upper base, and each rib is provided with a first buffer groove; The lower base is connected to the second ends of the plurality of ribs and is used for fixing an external structural member installed at the location of the vibration source.

2. The vibration isolator according to claim 1, wherein: The included angle between each rib and the outer portion of the lower base is an acute angle, a right angle or an obtuse angle.

3. The vibration isolator according to claim 1, wherein: The first buffer groove is opened on the rib in a manner parallel to the plane where the lower base is located, and the number of the first buffer grooves arranged on each rib is one or more.

4. The vibration isolator according to claim 3, characterized in that When one first buffer groove is provided on each rib, the first buffer groove is located at the midpoint between the first end and the second end of the rib; In the case that there are multiple first buffer grooves provided on each rib, the multiple first buffer grooves are distributed along the length direction of the rib; and the distribution of the multiple first buffer grooves on each rib is consistent.

5. The vibration isolator according to any one of claims 1 to 4, characterized in that: The first buffer groove is arranged on the inner wall or the outer wall of the rib.

6. The vibration isolator according to any one of claims 1 to 4, characterized in that: The number of the ribs is greater than or equal to 3, and the ribs are evenly distributed on a circle with the center axis of the vibration isolator as the center.

7. The vibration isolator according to any one of claims 1 to 4, characterized in that: A second buffer groove is provided at the connection between the rib and the lower base.

8. A vibration isolation assembly for household appliances, characterized in that: include: base plate; One or more vibration isolators according to any one of claims 1 to 7, one or more vibration isolators are mounted on a base plate for mounting a vibration source of a household appliance.

9. The vibration isolation assembly according to claim 8, wherein: In the case that there are multiple vibration isolators, the multiple vibration isolators are evenly distributed on a circle with the central axis point of the bottom plate as the center.

10. A household appliance, characterized in that: include: The vibration isolator according to any one of claims 1 to 7 or the vibration isolation assembly for household appliances according to claim 8 or 9, mounted on a housing of the household appliance; Vibration source, installed on vibration isolator or vibration isolation component for home appliances.

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