Vibration isolation assembly, support structure and compressor

Abstract

The utility model provides a vibration isolation assembly, a support structure and a compressor, relates to the technical field of compressors, and solves the technical problems that in the prior art, a damping vibration buffering device is additionally arranged at the joint of a liquid separator support to reduce the vibration transmissibility, and the vibration isolation effect is not ideal. The vibration isolation assembly, the support structure and the compressor comprise a compression cylinder, a piston head and a piston connecting piece, the piston head is arranged in the compression cylinder, the piston connecting piece is connected to the piston head and extends out of the compression cylinder, and the space between the piston head and the compression cylinder is filled with molecular spring mixed media. The molecular spring mixed medium comprises water and at least one hydrophobic stone with pores. According to the vibration isolation assembly, the support structure and the compressor, the vibration isolation effect of a system is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, in particular to a vibration isolation component, a bracket structure and a compressor. Background Art

[0002] The liquid separator is an indispensable part of the rotary compressor. Its main function is to separate the refrigerant from gas and liquid and filter impurities. The liquid separator is connected to the compressor shell through the liquid separator bracket. Most of the vibration energy generated by the operation of the compressor will drive the liquid separator to vibrate through the liquid separator bracket, thereby causing noise and vibration problems. Therefore, it is very important to reduce the transmission rate of vibration between the compressor and the liquid separator.

[0003] Reducing vibration transmissibility usually involves reducing stiffness and increasing damping. Reducing the stiffness of the bracket in a compressor will achieve a lower vibration isolation starting frequency, but it will reduce the static bearing capacity of the dispenser bracket and thus reduce the modal frequency of the dispenser, so this is usually not done. Existing technical means often add a damping and vibration-slowing device at the connection of the dispenser bracket, such as adding a damping alloy structure between the bracket clamp and the shell to reduce vibration of the dispenser.

[0004] When the vibration transmissibility is reduced by adding a damping and vibration-slowing device at the connection of the dispenser bracket, the vibration transmissibility at the resonance frequency point is reduced, but the vibration transmissibility above the resonance point will increase, and the vibration isolation effect is not ideal. At the same time, this solution is restricted by material costs and processes, and is difficult to promote in mass production. Utility Model Content

[0005] The purpose of the utility model is to provide a vibration isolation component, a bracket structure and a compressor to solve the technical problem that the vibration transmission rate is reduced by adding a damping and vibration-slowing device at the connection of the liquid distributor bracket in the prior art, but the vibration isolation effect is not ideal. The various technical effects that can be produced by the preferred technical solution among the various technical solutions provided by the utility model are described in detail below.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The utility model provides a vibration isolation component, which includes a compression cylinder, a piston head and a piston connector, wherein the piston head is arranged in the compression cylinder, the piston connector is connected to the piston head and extends out of the compression cylinder, and a molecular spring mixed medium is filled between the piston head and the compression cylinder, and the molecular spring mixed medium includes water and at least one hydrophobic stone with pores.

[0008] Furthermore, the piston connector includes a first connecting handle and a second connecting handle, and the first connecting handle and the second connecting handle are arranged at an angle B.

[0009] Furthermore, the angle B is 10-50 degrees.

[0010] A support structure comprises at least one set of vibration isolation components as described above.

[0011] Furthermore, it comprises a first support, a second support and two groups of vibration isolation components, and the two groups of vibration isolation components are arranged at an angle A between the first support and the second support.

[0012] Furthermore, the angle A is 20-40 degrees.

[0013] A compressor comprises at least one set of the support structures as described above.

[0014] Furthermore, it comprises a compressor body, a liquid distributor and two groups of the support structures, wherein the two groups of the support structures are arranged at intervals in the vertical direction between the compressor body and the liquid distributor.

[0015] Furthermore, the two groups of support structures are installed at a preset angle C.

[0016] Furthermore, the preset angle C is 90 degrees.

[0017] A compressor comprises a compressor body, a liquid distributor and a support structure, wherein the support structure comprises at least one set of vibration isolation components;

[0018] in:

[0019] The vibration isolation assembly includes a compression cylinder, a piston head and a piston connector, wherein the piston head is arranged in the compression cylinder, and a molecular spring mixed medium is filled between the piston head and the compression cylinder, wherein the molecular spring mixed medium is a mixture of water and at least one hydrophobic stone with pores;

[0020] The piston connector is connected to the piston head and extends out of the compression cylinder to be connected to the liquid distributor. The compression cylinder is connected to the compressor body.

[0021] Furthermore, two groups of the vibration isolation components are provided, and the two groups of the vibration isolation components are provided at an angle A between the compressor body and the liquid distributor.

[0022] Furthermore, the support structure is provided with two groups, namely a first support structure and a second support structure, and the plane where the two groups of vibration isolation components of the first support structure are located is perpendicular to the plane where the two groups of vibration isolation components of the second support structure are located.

[0023] Furthermore, the piston connector includes a first connecting handle and a second connecting handle, the first ends of the first connecting handle and the second connecting handle are both connected to the piston head, the second ends of the first connecting handle and the second connecting handle are both connected to the liquid dispenser, and the first connecting handle and the second connecting handle are arranged at an angle B between the piston head and the liquid dispenser.

[0024] Furthermore, the support structure is provided with two groups, namely a third support structure and a fourth support structure, and the plane where the first connecting handle and the second connecting handle of the third support structure are located is perpendicular to the plane where the first connecting handle and the second connecting handle of the fourth support structure are located.

[0025] Further, the third support structure and the fourth support structure are arranged at intervals in the vertical direction.

[0026] Furthermore, a first support is provided on the liquid distributor, the piston connector is connected to the first support, a second support is provided on the compressor body, and the second support is connected to the compression cylinder.

[0027] Furthermore, the piston connector is hinged to the piston head, the piston connector is hinged to the first support, and the compression cylinder is welded to the second support.

[0028] The beneficial effects of the utility model are as follows: the vibration isolation component, support structure and compressor provided by the utility model, the compression cylinder and the piston head of the vibration isolation component are filled with a molecular spring mixed medium composed of water and at least one hydrophobic stone with pores, which is applied between the liquid distributor and the compressor body to form a high-static and low-dynamic vibration isolation system, which effectively solves the contradiction between low vibration isolation starting frequency and high support stiffness. The high-static and low-dynamic vibration isolation system with nonlinear stiffness characteristics has very high static stiffness and very low dynamic stiffness, thereby ensuring that the bracket has a small natural frequency on the basis of having a sufficiently large load-bearing capacity, significantly expanding the vibration isolation frequency band of the system and improving the vibration isolation effect of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the utility model 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 It is a schematic diagram of the compressor structure in the prior art of the utility model;

[0031] Figure 2This is a schematic structural diagram of the support structure of the first embodiment of the utility model;

[0032] Figure 3 It is a structural schematic diagram of the hydrophobic stone of the utility model;

[0033] Figure 4 It is a structural schematic diagram of a compressor according to a second embodiment of the utility model;

[0034] Figure 5 This is a schematic structural diagram of the first bracket structure of the second embodiment of the utility model;

[0035] Figure 6 This is a schematic structural diagram of the second bracket structure of the second embodiment of the utility model;

[0036] Figure 7 It is a structural schematic diagram of the support structure of the third embodiment of the utility model.

[0037] In the figure, 1 is the compressor body; 2 is the liquid distributor; 3 is the support structure; 4 is the vibration isolation assembly; 5 is the compression cylinder; 6 is the piston head; 7 is the piston connector; 8 is the water; 9 is the hydrophobic stone; 10 is the first support; 11 is the second support; 12 is the first connecting handle; 13 is the second connecting handle. DETAILED DESCRIPTION

[0038] Please refer to the attached figure below Figure 1 to Figure 7 And the text content understands the content of the utility model and the difference between the utility model and the prior art. The following is a further detailed description of the technical solution (including the preferred technical solution) of the utility model by means of the accompanying drawings and the enumeration of some optional embodiments of the utility model. It should be noted that: any technical feature and any technical solution in the present embodiment are one or more of a variety of optional technical features or optional technical solutions. In order to describe the need for brevity, it is impossible to exhaustively list all the alternative technical features and alternative technical solutions of the utility model in this document, and it is not convenient for the implementation of each technical feature to emphasize that it is one of the optional multiple implementations, so those skilled in the art should know that: any technical means provided by the utility model can be replaced or any two or more technical means or technical features provided by the utility model can be combined with each other to obtain a new technical solution. Any technical feature and any technical solution in this embodiment do not limit the scope of protection of the utility model. The scope of protection of the utility model should include any alternative technical solutions that can be thought of by those skilled in the art without creative labor and new technical solutions obtained by combining any two or more technical means or technical features provided by the utility model.

[0039] In the description of the present invention, it should be noted that, unless otherwise specified, "multiple" means two or more than two; the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0040] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0041] The utility model provides a vibration isolation component, a support structure and a compressor which improve the vibration isolation effect of the system.

[0042] Combine the following Figure 1 to Figure 7 The technical solution provided by the utility model is described in more detail.

[0043] The utility model provides a compressor, comprising a compressor body 1, a liquid distributor 2 and a support structure 3, wherein the support structure 3 comprises at least one set of vibration isolation components 4;

[0044] in:

[0045] The vibration isolation assembly 4 includes a compression cylinder 5, a piston head 6 and a piston connector 7. The piston head 6 is disposed in the compression cylinder 5. A molecular spring mixed medium is filled between the piston head 6 and the compression cylinder 5. The molecular spring mixed medium is a mixture of water 8 and at least one hydrophobic stone 9 with pores.

[0046] The piston connector 7 is connected to the piston head 6 and extends outward from the compression cylinder 5 to be connected to the liquid distributor 2 . The compression cylinder 5 is connected to the compressor body 1 .

[0047] The compressor provided by the utility model comprises a compressor body 1, a liquid distributor 2 and a support structure 3, wherein the support structure 3 comprises at least one group of vibration isolation components 4, wherein a molecular spring mixed medium formed by a mixture of water 8 and at least one hydrophobic stone 9 with pores is filled between a compression cylinder 5 and a piston head 6 of the vibration isolation component 4, wherein a piston connector 7 connected to the piston head 6 and the compression cylinder 5 are respectively connected to the liquid distributor 2 and the compressor body 1, thereby forming a high-static and low-dynamic vibration isolation system between the liquid distributor 2 and the compressor body 1, effectively solving the contradiction between a low vibration isolation starting frequency and a high support stiffness, and providing a high-static and low-dynamic vibration isolation system with nonlinear stiffness characteristics, and having both very high static stiffness and very low dynamic stiffness, thereby ensuring that the support has a small natural frequency on the basis of having a sufficiently large bearing capacity, significantly expanding the vibration isolation frequency band of the system, and improving the vibration isolation effect of the system.

[0048] It can be understood that a compression chamber is formed between the piston head 6 and the compression cylinder 5, and a limiting structure is provided at the upper opening of the compression cylinder 5 to prevent the piston head 6 from detaching from the compression cylinder 5, and the compression cylinder 5 should have good sealing performance to ensure that water 8 does not leak.

[0049] It should be noted here that the vibration isolation principle of the vibration isolation assembly 4 of the present invention is as follows:

[0050] First, assume that the piston structure of the vibration isolation component 4 and the stiffness of the compression cylinder 5 are infinite. Here, the parallel direction of the piston connector 7 is assumed to be the y direction. The mechanical characteristics of the vibration isolation component 4 of the present invention in the y direction are divided into the following three stages of stiffness characteristics:

[0051] The first stage, static stiffness state: when the piston connector 7 of the vibration isolation assembly 4 is subjected to pressure, the pressure is transmitted to the connecting hinge part, and a component force in the y direction is generated at the piston head 6, which in turn exerts pressure on the water 8. The stiffness of the water 8 is very large, so the water 8 can be approximately regarded as incompressible. At this time, the stiffness of the vibration isolation assembly 4 of the present invention in the y direction is very large, and its size depends on the stiffness of the water 8.

[0052] The second stage, dynamic stiffness stage: the compressed water 8 presents static stiffness. There is at least one hydrophobic stone 9 with pores in the compression chamber, and the hydrophobic stone 9 has water-repelling properties for the water 8. When the pressure on the piston connector 7 increases to the critical pressure of the hydrophobic stone 9 to repel the water 8, the piston head 6 will press the water 8 in the compression cylinder 5 into the pores of the hydrophobic stone 9. Therefore, the stiffness of the vibration isolation assembly 4 of the present invention in the y direction at this stage is approximately 0.

[0053] The third stage, static stiffness state: as the piston connector 7 is compressed in the y direction, the pores of the hydrophobic stone 9 are gradually filled with water 8. After the pores are filled with water 8, the piston connector 7 enters the stage of compressing water 8 again, and at this time, the y-direction stiffness of the vibration isolation assembly 4 of the present invention becomes the stiffness of water 8 again.

[0054] After the above three stages, the vibration isolation assembly 4 as a whole will present the characteristics of "high static and low dynamic", having a high bearing capacity and nearly zero dynamic stiffness at the same time, thereby reducing the vibration transmission rate between the compressor body 1 and the liquid distributor 2 to zero.

[0055] In some embodiments of the utility model, a first support 10 is provided on the liquid distributor 2, the piston connector 7 is connected to the first support 10, and a second support 11 is provided on the compressor body 1, and the second support 11 is connected to the compression cylinder 5.

[0056] Specifically, the piston connector 7 is hinged to the piston head 6 , the piston connector 7 is hinged to the first support 10 , and the compression cylinder 5 is welded to the second support 11 .

[0057] It can be understood that the first support 10 and the second support 11 are configured to be structures compatible with the liquid distributor 2 or the compressor body 1 .

[0058] In some embodiments of the present invention, the first support 10 and the piston connector 7 can be configured as an integral structure, and are manufactured by integrally casting high-strength steel or by 3D printing.

[0059] In some embodiments of the present invention, two groups of the vibration isolation components 4 are provided, and the two groups of the vibration isolation components 4 are provided at an angle A between the compressor body 1 and the liquid distributor 2 .

[0060] In some of the above-mentioned embodiments of the utility model, two groups of the vibration isolation components 4 are provided, and the two groups of the vibration isolation components 4 are arranged at an angle A between the compressor body 1 and the liquid distributor 2, which can prevent fatigue damage of the piston connector 7 and stress concentration problems at the connection points at both ends of the piston connector 7, and can increase the vibration isolation effect of the vibration isolation component 4.

[0061] Specifically, the two groups of vibration isolation components 4 are arranged between the compressor body 1 and the liquid distributor 2 at an angle A, and the angle A is 20-40 degrees.

[0062] In some embodiments of the utility model, the support structure 3 is provided with two groups, namely the first support structure 3 and the second support structure 3, the first support structure 3 and the second support structure 3 are arranged between the compressor body 1 and the liquid distributor 2 in the vertical direction, and the plane where the two groups of vibration isolation components 4 of the first support structure 3 are located is perpendicular to the plane where the two groups of vibration isolation components 4 of the second support structure 3 are located.

[0063] In some of the above-mentioned embodiments of the utility model, the support structure 3 is provided with two groups, and the planes where the two groups of the vibration isolation components 4 of the two groups of support structures 3 are located are perpendicular to each other, ensuring that the bearing capacity of the compressor body 1 on the liquid distributor 2 is provided by the first support structure 3 and the second support structure 3, thereby improving the bearing capacity and ensuring the low-frequency vibration isolation effect.

[0064] In some embodiments of the present invention, the piston connector 7 includes a first connecting handle 12 and a second connecting handle 13, the first ends of the first connecting handle 12 and the second connecting handle 13 are connected to the piston head 6, the second ends of the first connecting handle 12 and the second connecting handle 13 are connected to the liquid dispenser 2, and the first connecting handle 12 and the second connecting handle 13 are arranged at an angle B between the piston head 6 and the liquid dispenser 2.

[0065] In some of the above-mentioned embodiments of the utility model, the piston connector 7 includes a first connecting handle 12 and a second connecting handle 13, and the first connecting handle 12 and the second connecting handle 13 are arranged between the piston head 6 and the liquid dispenser 2 at an angle B. Although the first connecting handle 12 and the second connecting handle 13 are arranged into the above-mentioned triangular structure, although it will limit the displacement range of the dynamic stiffness stage, it can be used to increase the lateral stiffness when the influence of tangential vibration is large, and can prevent fatigue damage of the piston connector 7 and stress concentration problems at the connections at both ends of the piston connector 7.

[0066] Specifically, the angle B is 10-50 degrees.

[0067] In some embodiments of the utility model, the support structure 3 is provided with two groups, namely a third support structure 3 and a fourth support structure 3, and the plane where the first connecting handle 12 and the second connecting handle 13 of the third support structure 3 are located is perpendicular to the plane where the first connecting handle 12 and the second connecting handle 13 of the fourth support structure 3 are located.

[0068] In some of the above-mentioned embodiments of the utility model, the support structure 3 is provided with two groups, and the planes where the first connecting handles 12 and the second connecting handles 13 of the two groups of the support structures 3 are located are perpendicular to each other, ensuring that the bearing capacity of the compressor body 1 on the liquid distributor 2 is provided by the third support structure 3 and the fourth support structure 3, thereby improving the bearing capacity and ensuring the low-frequency vibration isolation effect.

[0069] Furthermore, the connecting pipe between the liquid distributor 2 and the compressor body 1 is a hose.

[0070] Embodiment 1:

[0071] The vibration isolation assembly 4 provided by the utility model includes a compression cylinder 5, a piston head 6 and a piston connector 7. The piston head 6 is arranged in the compression cylinder 5, and a molecular spring mixed medium is filled between the piston head 6 and the compression cylinder 5. The molecular spring mixed medium is a mixture of water 8 and at least one hydrophobic stone 9 with pores; the piston connector 7 is connected to the piston head 6 and extends outside the compression cylinder 5.

[0072] The support structure 3 provided by the utility model comprises a first support 10 , a second support and a vibration isolation assembly 4 , the piston connector 7 is connected to the first support 10 , and the second support 11 is connected to the compression cylinder 5 .

[0073] The compressor provided by the utility model comprises a compressor body 1, a liquid distributor 2 and a support structure 3, wherein the support structure 3 comprises a group of vibration isolation components 4;

[0074] in:

[0075] The vibration isolation assembly 4 includes a compression cylinder 5, a piston head 6 and a piston connector 7. The piston head 6 is disposed in the compression cylinder 5. A molecular spring mixed medium is filled between the piston head 6 and the compression cylinder 5. The molecular spring mixed medium is a mixture of water 8 and at least one hydrophobic stone 9 with pores.

[0076] The piston connector 7 is connected to the piston head 6 and extends outward from the compression cylinder 5 to be connected to the liquid distributor 2 . The compression cylinder 5 is connected to the compressor body 1 .

[0077] The liquid distributor 2 is provided with a first support 10 , and the piston connector 7 is connected to the first support 10 . The compressor body 1 is provided with a second support 11 , and the second support 11 is connected to the compression cylinder 5 .

[0078] Embodiment 2:

[0079] The difference between the present embodiment 2 and the embodiment 1 is that the support structure 3 provided in the present embodiment 2 has two groups of vibration isolation components 4, and the two groups of vibration isolation components 4 are arranged at an angle A between the compressor body 1 and the liquid distributor 2.

[0080] In the compressor provided in this embodiment 2, the support structure 3 is provided with two groups, namely the first support structure 3 and the second support structure 3. The first support structure 3 and the second support structure 3 are arranged between the compressor body 1 and the liquid distributor 2 in the vertical direction, and the plane where the two groups of vibration isolation components 4 of the first support structure 3 are located is perpendicular to the plane where the two groups of vibration isolation components 4 of the first support structure 3 are located.

[0081] Furthermore, the connecting pipe between the liquid distributor 2 and the compressor body 1 is a hose.

[0082] Embodiment 3:

[0083] The difference between this embodiment 3 and embodiment 1 is that: the vibration isolation assembly 4 provided in this embodiment 3, the piston connector 7 includes a first connecting handle 12 and a second connecting handle 13, the first ends of the first connecting handle 12 and the second connecting handle 13 are connected to the piston head 6, the second ends of the first connecting handle 12 and the second connecting handle 13 are connected to the liquid dispenser 2, and the first connecting handle 12 and the second connecting handle 13 are arranged at an angle B between the piston head 6 and the liquid dispenser 2.

[0084] In the description of this specification, the description with reference to the terms "example", "embodiment" or "some embodiments" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0085] Of course, the invention is not limited to the above-mentioned embodiments, and those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A vibration isolation assembly, characterized in that: The vibration isolation assembly includes a compression cylinder, a piston head and a piston connector. The piston head is arranged in the compression cylinder. The piston connector is connected to the piston head and extends out of the compression cylinder. A molecular spring mixed medium is filled between the piston head and the compression cylinder. The molecular spring mixed medium includes water and at least one hydrophobic stone with pores.

2. The vibration isolation assembly according to claim 1, characterized in that: The piston connector includes a first connecting handle and a second connecting handle, and the first connecting handle and the second connecting handle are arranged at an angle B.

3. The vibration isolation assembly according to claim 2, characterized in that: The angle B is 10-50 degrees.

4. A support structure, characterized in that: It comprises at least one set of vibration isolation components as described in any one of claims 1-3.

5. The support structure according to claim 4, characterized in that: It comprises a first support, a second support and two groups of vibration isolation components, wherein the two groups of vibration isolation components are arranged at an angle A between the first support and the second support.

6. The support structure according to claim 5, characterized in that: The angle A is 20-40 degrees.

7. A compressor, characterized in that: It comprises at least one group of support structures as described in any one of claims 4-6.

8. The compressor according to claim 7, characterized in that It comprises a compressor body, a liquid distributor and two groups of the support structures, wherein the two groups of the support structures are arranged between the compressor body and the liquid distributor at intervals in the vertical direction.

9. The compressor according to claim 8, characterized in that The two groups of support structures are installed at a preset angle C.

10. The compressor according to claim 9, characterized in that The preset angle C is 90 degrees.

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