Vibration-damping mats, compressors and air conditioners

Abstract

The present invention provides a vibration-damping foot pad, a compressor and an air conditioner, which relate to the technical field of vibration-damping components, and are intended to improve the safety of the compressor under large impacts while taking into account the vibration-damping effect of the foot pad. The vibration-damping foot pad includes an elastic body, wherein a receiving cavity is formed in the elastic body, and a resistance-increasing liquid is arranged in the receiving cavity. When the vibration displacement of the vibration-damping foot pad exceeds a certain value, the deformation resistance of the elastic body can be increased by squeezing the resistance-increasing liquid and / or when the vibration speed of the vibration-damping foot pad exceeds a certain value, the deformation resistance of the elastic body can be increased by increasing the viscosity of the resistance-increasing liquid. The vibration-damping foot pad provided by the present invention passively controls the stiffness of the foot pad according to the vibration displacement and vibration speed of the compressor under different working conditions, improves the vibration-damping performance of the compressor under operating conditions, and takes into account the requirements of the compressor for different performance parameters of the vibration-damping foot pad under different working scenarios.

Description

Technical Field

[0001] The present invention relates to the technical field of vibration-damping components, and in particular to a vibration-damping foot pad, a compressor and an air conditioner provided with the vibration-damping foot pad. Background Art

[0002] The compressor will vibrate during operation, and soft pads are usually used to reduce vibration; however, during the transportation and start-stop of the compressor, a large impact will occur, and a pad that is too soft will deform greatly, which may cause the compressor connecting pipe to break, thereby affecting the safety of the air conditioner. Considering the safety under large impact, the vibration-reducing pad needs to be made harder. The present invention aims to provide a new vibration-reducing pad structure that takes into account both the vibration-reducing effect of the pad and the safety under large impact. Summary of the invention

[0003] The purpose of the present invention is to provide a vibration-damping foot pad, a compressor and an air conditioner, aiming to provide a new vibration-damping foot pad structure, which takes into account the vibration-damping effect of the foot pad while improving the safety of the compressor under a large impact. The various technical effects that can be produced by the preferred technical solution among the various technical solutions provided by the present invention are described in detail below.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A vibration-damping foot pad provided by the present invention comprises an elastic body, wherein a accommodating cavity is formed in the elastic body, and a resistance-increasing liquid is arranged in the accommodating cavity. When the vibration displacement of the vibration-damping foot pad exceeds a certain value, the deformation resistance of the elastic body can be increased by squeezing the resistance-increasing liquid and / or when the vibration speed of the vibration-damping foot pad exceeds a certain value, the deformation resistance of the elastic body can be increased by increasing the viscosity of the resistance-increasing liquid.

[0006] Furthermore, a temporary cavity located above the accommodating cavity is formed in the elastic body, and after the elastic body is compressed downward to a certain degree of deformation, the resistance-enhancing liquid can flow to the temporary cavity through the holes or gaps.

[0007] Furthermore, the vibration-damping foot pad also includes a damping ring, the accommodating cavity and the temporary cavity are respectively located below and above the damping ring, there is a distance between the damping ring and the liquid surface of the resistance-increasing liquid, and the damping ring is provided with a flow hole, through which the resistance-increasing liquid flows to the temporary cavity.

[0008] Furthermore, the distance between the damping ring and the resistance-enhancing fluid is c, and the maximum vibration displacement of the component supported on the vibration-damping foot pad is a. max , where 0 <c<a max .

[0009] Furthermore, the vibration displacement of the component supported on the vibration-damping foot pad under stable operating conditions is not greater than a, where a <c<a max .

[0010] Furthermore, the vibration-damping foot pad also includes a floating plate, which is movably arranged in the temporary cavity and located above the damping ring. A vent is provided on the elastic body, and the vent is located above the floating plate and communicated with the top of the temporary cavity. The floating plate is sealed with the elastic body to prevent the resistance-enhancing liquid from flowing out of the vent.

[0011] Furthermore, the drag-enhancing liquid is a shear thickening liquid, and the vibration-damping foot pad also includes a mounting base, and the mounting base has an insertion portion that is inserted into the accommodating cavity from the bottom of the elastic body.

[0012] Furthermore, the inserting portion is in a tubular structure, the accommodating cavity is in an annular structure, the axis of the inserting portion is colinear with the axis of the accommodating cavity, and the resistance-enhancing liquid surrounds a portion of the inserting portion located in the accommodating cavity.

[0013] Furthermore, the drag-enhancing fluid has a critical shear rate d, and the maximum vibration speed b of the component supported on the vibration-damping foot pad is max , the distance between the insertion portion and the side wall of the accommodating cavity is t, wherein 0 <d<b max / t; the critical shear rate d is defined as when the shear rate of the resistance-increasing fluid is not greater than d, the viscosity of the resistance-increasing fluid is low and stable, and when the shear rate of the resistance-increasing fluid is greater than d, the viscosity of the resistance-increasing fluid increases with the increase of the shear rate.

[0014] Furthermore, the vibration speed of the component supported on the vibration-damping foot pad under stable operating conditions is not greater than b, where b / t <d<b max / t.

[0015] A compressor comprises the vibration-damping foot pad described in item 1.

[0016] An air conditioner comprises the vibration-damping foot pad.

[0017] A vibration-damping foot pad provided by the present invention comprises an elastic body, wherein a receiving cavity is formed in the elastic body, and a resistance-increasing liquid is arranged in the receiving cavity. When the vibration displacement of the vibration-damping foot pad exceeds a certain value, the deformation resistance of the elastic body can be increased by squeezing the resistance-increasing liquid and / or when the vibration speed of the vibration-damping foot pad exceeds a certain value, the deformation resistance of the elastic body can be increased by increasing the viscosity of the resistance-increasing liquid. The vibration-damping foot pad provided by the present invention, when both the vibration displacement and the vibration speed do not exceed a certain value, the elastic body undergoes elastic deformation normally to achieve a vibration reduction effect. When the vibration displacement or the vibration speed exceeds a certain value, the deformation resistance of the elastic body is increased by squeezing the resistance-increasing liquid or increasing the viscosity of the resistance-increasing liquid, thereby avoiding excessive deformation of the vibration foot pad, which is beneficial to the safety of the compressor under a large impact. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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 these drawings without paying creative work.

[0019] Figure 1 is a cross-sectional schematic diagram of a vibration-damping foot pad provided by an embodiment of the present invention;

[0020] Figure 2 is a schematic structural diagram of a vibration-damping foot pad provided by an embodiment of the present invention;

[0021] Figure 3 It is a graph showing the relationship between shear rate and shear viscosity at different volume fractions of a certain shear thickening fluid.

[0022] In the figure, 1-elastic body; 11-vent; 2-drag-increasing liquid; 3-temporary cavity; 4-damping ring; 41-circulation hole; 5-floating plate; 6-mounting base; 61-insertion part. DETAILED DESCRIPTION

[0023] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0024] Embodiment 1:

[0025] The present invention provides a vibration-damping foot pad, comprising an elastic body 1, wherein a receiving cavity is formed in the elastic body 1, and a resistance-increasing liquid 2 is arranged in the receiving cavity. When the vibration displacement of the vibration-damping foot pad exceeds a certain value, the resistance-increasing liquid 2 can be squeezed to increase the deformation resistance of the elastic body 1. The vibration-damping foot pad can be a compressor vibration-damping foot pad, which can be applied to a vehicle-mounted compressor. The elastic body 1 is usually made of rubber material. When the vibration displacement of the compressor is not large, the elastic body 1 undergoes elastic deformation normally, and the vibration-damping effect is good; when the vibration displacement is greater than a certain value, the resistance-increasing liquid 2 is squeezed when the vibration-damping foot pad vibrates to increase the resistance deformation capacity of the elastic body 1, so as to avoid excessive deformation of the vibration foot pad, and avoid the existing rubber foot pad. During the transportation and start-stop process of the compressor, due to the large impact, the foot pad is greatly deformed, which may cause the compressor connecting pipeline to break, thereby affecting the safety of the air conditioner.

[0026] As an optional implementation, a temporary cavity 3 located above the accommodating cavity is also formed in the elastic body 1. The resistance-increasing liquid 2 does not completely fill the accommodating cavity. After the elastic body 1 is compressed downward to a certain degree of deformation, the resistance-increasing liquid 2 can flow to the temporary cavity 3 through the hole or gap, causing greater resistance, thereby improving the resistance deformation capacity of the elastic body 1. When the compressor is transported or started or stopped, or in a harsh operating environment, the compressor may experience a large vibration displacement. At this time, the resistance-increasing liquid 2 can flow to the temporary cavity 3 through the hole or gap, causing greater resistance.

[0027] Specifically, see Figure 1 The vibration-damping foot pad also includes a damping ring 4, and a receiving chamber and a temporary chamber 3 are respectively provided below and above the damping ring 4. There is a distance between the damping ring 4 and the liquid surface of the resistance-increasing liquid 2. A flow hole 41 is provided on the damping ring 4, and the resistance-increasing liquid 2 flows to the temporary chamber 3 through the flow hole 41. The damping ring 4 is fixed on the elastic body 1.

[0028] In order to improve the vibration reduction performance of the compressor, the material of the elastic body 1 can be a foot pad that is softer than the conventional rubber pad. At this time, for the safety of the pipeline and the compressor, the maximum vibration displacement of the compressor is limited to no more than a max mm (the maximum limit is determined by the inclination angle limit specified by the compressor and the strain limit of the suction and exhaust pipes connected thereto, which can be obtained through experiments or simulations), the vibration displacement of the compressor under stable operating conditions is not greater than amm (which can be obtained through experimental tests), and the distance between the damping ring 4 and the resistance-increasing liquid 2 is c, where Best That is a <c<a max This is conducive to achieving stable operation of the compressor without squeezing the resistance-increasing liquid 2, ensuring vibration reduction performance; the vibration displacement is greater than amm and does not reach the maximum vibration displacement a of the compressor max mm, the resistance-increasing liquid 2 flows from the flow hole 41 into the temporary cavity 3 to increase the resistance, thereby improving the "rigidity" of the vibration-damping foot pad.

[0029] As an optional embodiment, the vibration-damping foot pad further comprises a floating plate 5, which is movably arranged in the temporary cavity 3 and located above the damping ring 4. The elastic body 1 is provided with a vent hole 11, which is located above the floating plate 5 and communicates with the top of the temporary cavity 3. The floating plate 5 and the elastic body 1 are sealed to prevent the resistance-enhancing liquid 2 from flowing out of the vent hole 11, and at the same time ensure that the pressure in the cavity above the floating plate 5 is the same as the atmospheric pressure. Figure 1 , which illustrates a cross-sectional schematic diagram of the vibration-damping foot pad. When the resistance-enhancing fluid 2 flows from the flow hole 41 to the temporary cavity 3, it pushes the floating plate 5 to move upward.

[0030] Embodiment 2:

[0031] A vibration-damping pad includes an elastic body 1, wherein a receiving cavity is formed in the elastic body 1, and a resistance-increasing liquid 2 is arranged in the receiving cavity. When the vibration speed of the vibration-damping pad exceeds a certain value, the deformation resistance of the elastic body 1 can be increased by increasing the viscosity of the resistance-increasing liquid 2. The vibration-damping pad can be a compressor vibration-damping pad, which can be applied to a vehicle-mounted compressor. The elastic body 1 is usually made of rubber. When the vibration speed of the compressor is not large, the elastic body 1 can be considered to be elastically deformed normally (the viscosity of the resistance-increasing liquid 2 is small, and the effect on the vibration of the elastic body 1 is small), and the vibration-damping effect is good; when the vibration speed of the compressor is greater than a certain value, the viscosity of the resistance-increasing liquid 2 increases (obviously), thereby improving the resistance deformation capability of the elastic body 1.

[0032] Specifically, the drag-enhancing liquid 2 is a shear thickening liquid, and the vibration-damping foot pad further comprises a mounting base 6, and the mounting base 6 has an inserting portion 61 inserted into the accommodating cavity from the bottom of the elastic body 1. Figure 1 , showing the insertion part 61. The vibration-damping foot pad is fixed by the mounting base 6, which is made of a rigid material. When the elastic body 1 is deformed, the mounting base 6 does not deform. The insertion part 61 and the deformed elastic body 1 have a "shearing" effect on the resistance-enhancing liquid 2 in the accommodating chamber, thereby stirring the resistance-enhancing liquid 2.

[0033] As an optional embodiment, the inserting portion 61 is a tubular structure, the accommodating cavity is an annular structure, the axis of the inserting portion 61 is colinear with the axis of the accommodating cavity, and the resistance-enhancing liquid 2 surrounds the portion of the inserting portion 61 located in the accommodating cavity. Figure 1 , schematically showing the insertion portion 61, the accommodating chamber and the resistance-increasing liquid 2, the insertion portion 61 is sealed with the bottom of the accommodating chamber. Figure 1 Schematically shows an insertion portion 61 of a tubular structure. According to the specific size of the vibration-damping foot pad, more than two insertion portions 61 can be added. The more than two insertion portions 61 are coaxially arranged and sequentially sleeved to improve the "shear" effect of the drag-increasing fluid 2.

[0034] The shear thickening fluid is a non-Newtonian fluid. Here, the material of the drag-enhancing fluid 2 is not specifically limited. Figure 3 , which shows the relationship between shear rate and shear viscosity of a shear thickening fluid at different volume fractions. -1 (critical shear rate d) below which the viscosity is low and stable, exceeding 10 -1 After that, the shear viscosity increases with the shear rate. The present invention utilizes this characteristic of the shear thickening liquid to realize that when the vibration damping pad vibrates at a low speed, the elastic body 1 can be considered to undergo normal elastic deformation (the viscosity of the resistance-enhancing liquid 2 is small and has little effect on the vibration of the elastic body 1). When the vibration speed of the vibration damping pad exceeds the set value, the viscosity of the shear thickening liquid increases, increasing the resistance to elastic deformation of the elastic body 1. When the vibration of the vibration damping pad is reduced to below the critical shear rate d, the viscosity of the shear thickening liquid returns to normal.

[0035] In order to improve the vibration reduction performance of the compressor, the material of the elastic body 1 can be a foot pad that is softer than the conventional rubber pad. At this time, for the safety of the pipeline and the compressor, the maximum vibration speed of the compressor is not greater than b max mm / s (its maximum limit is determined by the inclination angle limit specified by the compressor and the strain limit of the suction and exhaust pipes connected thereto, which can be obtained through experiments or simulations), the vibration speed of the compressor under stable operating conditions is not greater than bmm / s (which can be obtained through experimental tests), the distance between the insertion portion 61 and the side wall of the accommodating cavity is t, wherein the critical shear rate d satisfies the condition b / t-γ <d<b max / t, 0≤γ max / t, when the vibration-damping pad vibrates at a low speed, the elastic body 1 can be considered to undergo normal elastic deformation. When the vibration speed of the vibration-damping pad exceeds bmm / s, the viscosity of the shear thickening fluid increases, increasing the resistance to elastic deformation of the elastic body 1.

[0036] Embodiment 3:

[0037] ​A vibration-damping foot pad comprises an elastic body 1, wherein a receiving cavity is formed in the elastic body 1, and a resistance-increasing liquid 2 is arranged in the receiving cavity. When the vibration displacement of the vibration-damping foot pad exceeds a certain value, the deformation resistance of the elastic body 1 can be increased by squeezing the resistance-increasing liquid, and when the vibration speed of the vibration-damping foot pad exceeds a certain value, the deformation resistance of the elastic body 1 can be increased by increasing the viscosity of the resistance-increasing liquid 2. The vibration-damping foot pad can be a compressor vibration-damping foot pad, which can be applied to a vehicle-mounted compressor. The elastic body 1 is usually made of rubber. When the vibration displacement of the compressor is not large (the vibration speed of the compressor does not exceed the set value at this time), the elastic body 1 undergoes elastic deformation normally, and the vibration reduction effect is better; when the vibration displacement is greater than a certain value, the vibration-damping foot pad squeezes the resistance-increasing liquid 2 during vibration to improve the elastic body 1's ability to deform in impedance; when the vibration speed of the compressor is not large (the vibration displacement of the compressor does not exceed the set value at this time), the elastic body 1 can be considered to undergo elastic deformation normally (the viscosity of the resistance-increasing liquid 2 is small, and the effect on the vibration of the elastic body 1 is small), and the vibration reduction effect is better; when the vibration speed of the compressor is greater than a certain value, the viscosity of the resistance-increasing liquid 2 increases (obviously), thereby improving the elastic body 1's ability to deform in impedance; when the vibration displacement and vibration speed of the compressor are both greater than a certain value, the resistance-increasing liquid 2 is squeezed and the viscosity of the resistance-increasing liquid 2 is increased to improve the elastic body 1's ability to deform in impedance. Avoid the existing rubber foot pads. During the transportation and start-up and shutdown of the compressor, there will be a large impact, which will cause the foot pads to deform significantly, and may cause the compressor connecting pipes to break, thereby affecting the safety of the air conditioner.

[0038] As an optional implementation, a temporary cavity 3 is formed in the elastic body 1 above the accommodating cavity. The resistance-enhancing liquid 2 does not completely fill the accommodating cavity. After the elastic body 1 is compressed downward to a certain degree of deformation, the resistance-enhancing liquid 2 can flow to the temporary cavity 3 through the hole or gap, causing greater resistance and improving the resistance deformation capability of the elastic body 1. Figure 1 The vibration-damping foot pad also includes a damping ring 4. Below and above the damping ring 4 are a receiving cavity and a temporary cavity 3, respectively. There is a gap between the damping ring 4 and the liquid surface of the resistance-increasing liquid 2. The damping ring 4 is provided with a flow hole 41. The resistance-increasing liquid 2 flows to the temporary cavity 3 through the flow hole 41. The damping ring 4 is fixed on the elastic body 1. In order to improve the vibration-damping performance of the compressor, the material of the elastic body 1 can be a foot pad that is softer than a conventional rubber pad. At this time, for the safety of the pipeline and the compressor, the maximum vibration displacement of the compressor is limited to no more than a max mm (the maximum limit is determined by the inclination angle limit specified by the compressor and the strain limit of the suction and exhaust pipes connected thereto, which can be obtained through experiments or simulations), the vibration displacement of the compressor under stable operating conditions is not greater than amm (which can be obtained through experimental tests), and the distance between the damping ring 4 and the resistance-increasing liquid 2 is c, where Best That is a <c<a maxThis is conducive to achieving stable operation of the compressor without squeezing the resistance-increasing liquid 2, ensuring vibration reduction performance; the vibration displacement is greater than amm and does not reach the maximum vibration displacement a of the compressor max mm, the resistance-increasing liquid 2 flows from the flow hole 41 into the temporary cavity 3 to increase the resistance, thereby improving the "rigidity" of the vibration-damping foot pad.

[0039] As an optional embodiment, the vibration-damping foot pad also includes a floating plate 5, which is movably arranged in the temporary cavity 3 and located above the damping ring 4. A vent 11 is arranged on the elastic body 1. The vent 11 is located above the floating plate 5 and communicated with the top of the temporary cavity 3. The floating plate 5 is sealed with the elastic body 1 to prevent the resistance-enhancing liquid 2 from flowing out of the vent 11.

[0040] As an optional embodiment, the drag-enhancing liquid 2 is a shear thickening liquid, and the vibration-damping foot pad further includes a mounting base 6, and the mounting base 6 has an insertion portion 61 inserted into the accommodating cavity from the bottom of the elastic body 1. Figure 1 , showing the insertion part 61. The vibration-damping foot pad is fixed by the mounting base 6, which is made of a rigid material. When the elastic body 1 is deformed, the mounting base 6 does not deform. The insertion part 61 and the deformed elastic body 1 have a "shearing" effect on the drag-enhancing liquid 2 in the accommodating chamber, thereby stirring the drag-enhancing liquid 2. Specifically, the insertion part 61 is a tubular structure, the accommodating chamber is an annular structure, and the axis of the insertion part 61 is colinear with the axis of the accommodating chamber. The drag-enhancing liquid 2 surrounds the part of the insertion part 61 located in the accommodating chamber. See Figure 1 , schematically showing the insertion portion 61, the accommodating chamber and the resistance-increasing liquid 2, the insertion portion 61 is sealed with the bottom of the accommodating chamber. Figure 1 Schematically shows an insertion portion 61 of a tubular structure. According to the specific size of the vibration-damping foot pad, more than two insertion portions 61 can be added. The two or more insertion portions 61 are coaxially arranged and sequentially sleeved to improve the "shear" effect of the drag-increasing fluid 2.

[0041] In order to improve the vibration reduction performance of the compressor, the material of the elastic body 1 can be a foot pad that is softer than the conventional rubber pad. At this time, for the safety of the pipeline and the compressor, the maximum vibration speed of the compressor is not greater than b max mm / s (its maximum limit is determined by the inclination angle limit specified by the compressor and the strain limit of the suction and exhaust pipes connected thereto, which can be obtained through experiments or simulations), the vibration speed of the compressor under stable operating conditions is not greater than bmm / s (which can be obtained through experimental tests), the distance between the insertion portion 61 and the side wall of the accommodating cavity is t, wherein the critical shear rate d satisfies the condition b / t-γ <d<b max / t, 0≤γ max ​ / t, when the vibration damping pad vibrates at a low speed, the elastic body 1 can be considered to undergo normal elastic deformation (the viscosity of the resistance-enhancing fluid 2 is low and has little effect on the vibration of the elastic body 1). When the vibration speed of the vibration damping pad exceeds bmm / s, the viscosity of the shear thickening fluid increases, increasing the resistance to elastic deformation of the elastic body 1. For the critical shear rate d, see Figure 3 , which shows the relationship between shear rate and shear viscosity of a shear thickening fluid at different volume fractions. -1 (critical shear rate d) below which the viscosity is low and stable, exceeding 10 -1 (critical shear rate d), the shear viscosity increases significantly with the shear rate.

[0042] When the compressor is transported or started or stopped or in a bad operating environment, the compressor may have a low-frequency vibration with a large displacement but a low vibration speed. At this time, the resistance-increasing liquid 2 flows through the damping ring 4, causing a large resistance, forming a situation where the elastic body 1 is parallel to the resistance-increasing liquid 2 and the damping ring 4; or a high-frequency vibration with a displacement not exceeding the limit but a large vibration speed occurs. At this time, the viscosity of the resistance-increasing liquid 2 increases, causing a large resistance; when the compressor falls or the transportation road conditions are bad, the vibration may be located in an impact condition with a large vibration speed. At this time, the elastic body 1, the resistance-increasing liquid 2 and the damping ring 4, and the viscosity of the resistance-increasing liquid 2 work together to ensure the safety of the unit, avoid the defect of low rigidity of the existing rubber foot pad, and ensure the safety of the compressor. The vibration-damping foot pad provided by the present invention passively controls the foot pad stiffness according to the vibration displacement and vibration speed of the compressor under different working conditions, and the stiffness changes smoothly. Improve the vibration reduction performance of the compressor under operating conditions (the material of the elastic body 1 can be selected from a foot pad that is softer than a conventional rubber pad), taking into account the requirements of the compressor for different performance parameters of the vibration-damping foot pad in different working scenarios.

[0043] Embodiment 4:

[0044] A compressor comprises the vibration-damping foot pad described in Example 1, Example 2 or Example 3.

[0045] Embodiment 5:

[0046] An air conditioner comprises the vibration-damping foot pad described in Example 1, Example 2 or Example 3.

[0047] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A vibration-damping foot pad, characterized in that: It comprises an elastic body (1), wherein: The elastic body (1) is formed with a receiving cavity, and a resistance-enhancing liquid (2) is arranged in the receiving cavity. When the vibration displacement of the vibration-damping foot pad exceeds a certain value, the resistance-enhancing liquid (2) can be squeezed to increase the deformation resistance of the elastic body (1) and / or when the vibration speed of the vibration-damping foot pad exceeds a certain value, the resistance-enhancing liquid (2) can be increased in viscosity to increase the deformation resistance of the elastic body (1); A temporary cavity (3) is also formed in the elastic body (1) and is located above the accommodating cavity. After the elastic body (1) is compressed downward to a certain degree of deformation, the resistance-enhancing liquid (2) can flow into the temporary cavity (3) through the hole or gap. The vibration-damping foot pad further comprises a damping ring (4), the accommodating cavity and the temporary cavity (3) are respectively located below and above the damping ring (4), a distance exists between the damping ring (4) and the liquid surface of the resistance-enhancing liquid (2), and a flow hole (41) is provided on the damping ring (4), and the resistance-enhancing liquid (2) flows into the temporary cavity (3) through the flow hole (41); The vibration-damping foot pad also includes a floating plate (5), which is movably arranged in the temporary cavity (3) and located above the damping ring (4); a vent hole (11) is arranged on the elastic body (1), and the vent hole (11) is located above the floating plate (5) and communicates with the top of the temporary cavity (3); the floating plate (5) and the elastic body (1) are sealed to prevent the resistance-enhancing liquid (2) from flowing out of the vent hole (11).

2. The vibration-damping foot pad according to claim 1, characterized in that: The distance between the damping ring (4) and the resistance-enhancing fluid (2) is c, and the maximum vibration displacement of the component supported on the vibration-damping foot pad is a. max , where 0<c<a max .

3. The vibration-damping foot pad according to claim 2, characterized in that: The vibration displacement of the component supported on the vibration-damping foot pad under stable operating conditions is not greater than a, where a<c<a max .

4. The vibration-damping foot pad according to any one of claims 1 to 3, characterized in that: The drag-enhancing liquid (2) is a shear thickening liquid. The vibration-damping foot pad also includes a mounting base (6). The mounting base (6) has an insertion portion (61) that is inserted into the accommodating cavity from the bottom of the elastic body (1).

5. The vibration-damping foot pad according to claim 4, characterized in that: The insertion part (61) is a tubular structure, the accommodating cavity is an annular structure, the axis of the insertion part (61) is colinear with the axis of the accommodating cavity, and the resistance-enhancing liquid (2) surrounds the portion of the insertion part (61) located in the accommodating cavity.

6. The vibration-damping foot pad according to claim 4, characterized in that: The drag-enhancing fluid (2) has a critical shear rate d, and the maximum vibration speed b of the component supported on the vibration-damping foot pad max The distance between the insertion portion (61) and the side wall of the accommodating cavity is t, wherein 0<d<b max / t; The critical shear rate d is defined as when the shear rate of the resistance-increasing liquid (2) is not greater than d, the viscosity of the resistance-increasing liquid (2) is low and stable; when the shear rate of the resistance-increasing liquid (2) is greater than d, the viscosity of the resistance-increasing liquid (2) increases with increasing shear rate.

7. The vibration-damping foot pad according to claim 6, characterized in that: The vibration speed of the component supported on the vibration-damping foot pad under stable operating conditions is not greater than b, where b / t<d<b max / t.

8. A compressor, characterized in that: The invention comprises the vibration-damping foot pad according to any one of claims 1 to 7.

9. An air conditioner, characterized in that: The invention comprises the vibration-damping foot pad according to any one of claims 1 to 7.

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