A vibration absorbing device, compressor and method

Abstract

The application provides a vibration absorbing device, a compressor and a method, relates to the technical field of compressors, and solves the technical problem that the vibration absorbing device of the compressor cannot solve eccentricity. The vibration absorbing device comprises a connecting and fixing device, a vibration absorbing assembly, a first permanent magnet piece and a second permanent magnet piece; the first permanent magnet piece is installed on a bottom disc below a liquid storage tank; the second permanent magnet piece is installed at the bottom of the vibration absorbing assembly and is arranged opposite to the first permanent magnet piece; the first permanent magnet piece and the second permanent magnet piece repel each other magnetically; one end of the connecting and fixing device is fixed at the top of the vibration absorbing assembly, and the other end is connected with a connecting pipeline between the liquid storage tank and the compressor. The application sets the vibration absorbing assembly on the lower side of the liquid storage tank of the compressor, sets the permanent magnet pieces on the bottom of the vibration absorbing assembly and the bottom disc, balances the eccentric mass of the liquid storage tank and the vibration absorbing device by using the magnetic force between the two permanent magnet pieces, so that the compressor is more stable during operation, and the problem that the structure of the liquid storage tank causes the eccentricity of the compressor is solved.

Description

Technical Field

[0001] This invention relates to the field of compressor technology, and in particular to a vibration damping device, compressor, and method. Background Technology

[0002] As air conditioner outdoor units become smaller and lighter, solving noise and vibration problems during the development phase becomes increasingly difficult. Currently, most compressors in outdoor units are inverter compressors. Because the liquid receiver is connected to the side wall of the compressor body, and the rotating parts inside the inverter compressor experience constant changes in inertial force and inertial torque under suction and discharge pressures, the compressor constantly vibrates eccentrically.

[0003] To reduce vibration and noise, three rubber feet are typically installed between the compressor feet and the chassis to dampen the compressor. However, once the rubber feet are in place, their natural frequency is fixed, making it impossible to achieve effective vibration and noise reduction across a wide frequency range. This results in the compressor experiencing excessive vibration and noise in certain frequency ranges or during start-up and shutdown.

[0004] Existing technology discloses a particle damping vibration reducer and noise reducer for air conditioning compressors. This device reduces vibration and noise by installing a multi-particle, multi-unit particle damper on the outside of the compressor and utilizing the energy dissipation effect of damping. However, the damping frequency of this device is fixed after being set, so it is only effective for vibrations at the operating frequency of a single compressor.

[0005] Existing technology also discloses a vibration damping device, a clothes dryer, and a vibration control method. The vibration damping device includes a housing, an electromagnetic component, and a magnetorheological fluid filled within the housing. The electromagnetic component is used to adjust the stiffness of the magnetorheological fluid within the housing, thereby changing the stiffness of the vibration damping device so that its natural frequency matches the operating frequency of the device to be damped, thus reducing vibration. However, this device cannot solve the problems of compressor eccentricity and excessive vibration and noise during compressor start-up and shutdown. Summary of the Invention

[0006] The purpose of this invention is to provide a vibration-absorbing device, a compressor, and a method to solve the technical problem that existing compressor vibration-absorbing devices cannot solve the problem of eccentricity.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] The present invention provides a vibration-absorbing device, comprising a connecting and fixing device, a vibration-absorbing assembly, a first permanent magnet plate, and a second permanent magnet plate; wherein:

[0009] The first permanent magnet plate is mounted on the chassis below the liquid storage tank;

[0010] The second permanent magnet piece is installed at the bottom of the vibration absorbing assembly and is opposite to the first permanent magnet piece; the first permanent magnet piece and the second permanent magnet piece repel each other magnetically.

[0011] One end of the connecting and fixing device is fixed at the top of the vibration absorbing assembly, and the other end is connected with the connecting pipeline between the liquid storage tank and the compressor.

[0012] The vibration absorbing device provided by the application can balance the eccentric mass of the liquid storage tank and the vibration absorbing device by the magnetic force between the two permanent magnet pieces, so that the compressor is more stable during operation, and the problem of eccentricity of the compressor caused by the structure of the liquid storage tank is solved.

[0013] As a further improvement of the application, the vibration absorbing assembly comprises a vibration absorbing box, a fixing piece and a particle damping tank.

[0014] The fixing piece is installed in the inner cavity of the vibration absorbing box.

[0015] The particle damping tank is slidably arranged in the sliding groove of the fixing piece and can reciprocate along the sliding groove.

[0016] As a further improvement of the application, the fixing piece is made of a memory alloy.

[0017] The vibration absorbing assembly is applied to the bottom of the liquid storage tank of the compressor, a particle damping tank is clamped on the memory alloy fixing piece in the vibration absorbing assembly, the vibration of the compressor is consumed by the back-and-forth vibration of the damping tank, the noise and vibration problems caused by the operation of the compressor are reduced, and the problems of large vibration and noise of the compressor during operation are solved.

[0018] As a further improvement of the application, the fixing piece comprises a connecting portion and an arc-shaped portion, an opening is formed in the side wall of the vibration absorbing box for the connecting portion to pass through, and the sliding groove is formed in the arc-shaped portion.

[0019] As a further improvement of the application, the particle damping tank is filled with a plurality of damping particles, and each damping particle has different mass and damping.

[0020] The damping particles are arranged in the particle damping tank, the vibration energy is further consumed by the friction and collision between the damping particles when the vibration absorber vibrates, and the vibration absorbing effect of the vibration absorber is improved.

[0021] As a further improvement of the application, a temperature adjusting assembly is further arranged between the liquid storage tank, the compressor and the fixing piece.

[0022] The temperature of the memory alloy fixing piece can be changed, the curvature of the memory alloy is adjusted, the frequency of the vibration of the damping box is changed, the effective vibration absorbing frequency of the vibration absorber is changed, and the effective vibration absorbing range is widened.

[0023] As a further improvement of the present application, the temperature adjusting assembly comprises a first heat conductor, a second heat conductor and an electric heat transfer device.

[0024] One end of the second heat conductor is fixed on the compressor, and the other end is close to the connecting part.

[0025] One end of the first heat conductor is fixed on the liquid storage tank, and the other end is close to the connecting part.

[0026] The electric heat transfer device is rotatably arranged on the connecting part and can be in contact with the first heat conductor or the second heat conductor when rotating.

[0027] The temperature adjusting assembly can solve the problem of temperature adjustment when adjusting the frequency of the vibration absorbing assembly.

[0028] As a further improvement of the present application, the connecting and fixing device comprises a connecting column and a connecting sheet.

[0029] The connecting column is fixed on the top of the vibration absorbing assembly.

[0030] The connecting sheet is in an arc structure and wrapped outside the pipeline.

[0031] The compressor provided by the present application comprises a compressor body, a liquid storage tank, a base plate and the vibration absorbing device.

[0032] The design method of the vibration absorbing device provided by the present application comprises the following steps.

[0033] The position of the center of mass of the compressor is obtained, and the magnetic force between the first permanent magnet sheet and the second permanent magnet sheet is selected.

[0034] The start-up test is performed, the maximum frequency of vibration in the start-up process of the compressor is obtained, and the initial vibration frequency f1 of the vibration absorbing assembly is obtained.

[0035] The vibration test is performed to obtain the temperature of the memory alloy fixing plate corresponding to each vibration frequency f0 in the vibration absorbing assembly as the target temperature T0 of the memory alloy fixing plate in the vibration absorbing assembly.

[0036] As a further improvement of the present application, the obtaining of the position of the center of mass of the compressor and the selection of the magnetic force between the first permanent magnet plate and the second permanent magnet plate comprises:

[0037] The position of the center of mass of the compressor and the eccentric mass of the liquid storage tank and the vibration absorbing assembly are obtained.

[0038] Based on the obtained position of the center of mass and the eccentric mass, the required magnetic force value between the first permanent magnet plate and the second permanent magnet plate is calculated.

[0039] Based on the calculated magnetic force value, the specifications of the first permanent magnet plate and the second permanent magnet plate are confirmed.

[0040] The present application provides a control method for controlling the vibration absorbing device, which comprises the following steps:

[0041] Receiving a start-up instruction;

[0042] Obtaining the target temperature T0 of the memory alloy fixing plate corresponding to the working frequency of the variable frequency compressor;

[0043] Obtaining the real-time temperature T of the memory alloy fixing plate;

[0044] When the real-time temperature T is equal to the target temperature T0, the rotating heat transfer device in the vibration absorbing assembly is controlled to rotate between the first heat conductor and the second heat conductor, no heat conduction is performed, and the real-time temperature of the memory alloy fixing plate is maintained within the target temperature T0 range;

[0045] When the real-time temperature T is greater than the target temperature T0, the rotating heat transfer device in the vibration absorbing assembly is controlled to rotate in contact with the first heat conductor to reduce the real-time temperature of the memory alloy fixing plate to the target temperature T0;

[0046] When the real-time temperature T is less than the target temperature T0, the rotating heat transfer device in the vibration absorbing assembly is controlled to rotate in contact with the second heat conductor to increase the real-time temperature of the memory alloy fixing plate to the target temperature T0;

[0047] Judging whether the working frequency of the compressor has changed, if yes, the target temperature T0 of the memory alloy fixing plate corresponding to the new working frequency of the variable frequency compressor is obtained again; otherwise, the real-time temperature T of the memory alloy fixing plate is obtained again. BRIEF DESCRIPTION OF DRAWINGS

[0048] In order to make the technical solutions of the embodiments of the present application or the prior art clearer, the accompanying drawings needed in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description only need to be some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort.

[0049] Figure 1 Fig. 1 is a structural schematic diagram of the compressor of the present application;

[0050] Figure 2 Fig. 5 is a three-dimensional structural schematic diagram of the vibration absorbing device of the present application (I);

[0051] Figure 3 Fig. 6 is a three-dimensional structural schematic diagram of the vibration absorbing device of the present application (II);

[0052] Figure 4 Fig. 7 is a structural schematic diagram of the vibration absorbing device with the cover removed;

[0053] Figure 5 Fig. 8 is an exploded structural schematic diagram of the vibration absorbing device of the present application;

[0054] Figure 6 Fig. 11 is a flow chart of the first step of the magnetic force design between the permanent magnets in the design method of the present application;

[0055] Figure 7 Fig. 12 is a flow chart of the second step of the original vibration frequency design of the granular damping tank in the design method of the present application;

[0056] Figure 8 Fig. 13 is a flow chart of the third step of the target temperature design of the memory alloy fixed plate in the design method of the present application;

[0057] Figure 9 Fig. 14 is a control flow chart of the control method of the present application.

[0058] In the drawings, 1100, connecting fixing device; 1200, vibration absorbing shell; 1201, damping tank cover; 1202, granular damping tank; 1203, damping granule; 1204, connecting device; 1300, vibration absorbing cover; 1400, first heat conductor; 1500, second heat conductor; 1600, electric heat transfer device; 1700, fixed plate; 1800, first permanent magnet plate; 1900, second permanent magnet plate; 1000, vibration absorbing device; 2000, compressor body; 3000, base plate. DETAILED DESCRIPTION

[0059] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0060] like Figure 1 As shown, currently, the compressors in air conditioner outdoor units are generally eccentric structures and are variable frequency compressors. To reduce the vibration and noise during compressor operation, three rubber feet are usually installed at the connection between the compressor feet and the chassis 3000 to dampen the compressor. However, these feet cannot achieve effective wide-frequency vibration damping. Therefore, this invention designs a compressor vibration absorption device with variable stiffness, variable mass, and variable damping.

[0061] Specifically, such as Figures 1-3 As shown, the present invention provides a vibration damping device 1000, which is installed on a compressor. The vibration damping device 1000 includes a connecting and fixing device 1100, a vibration damping assembly, a first permanent magnet plate 1800, and a second permanent magnet plate 1900; wherein:

[0062] The first permanent magnet plate 1800 is installed on the chassis 3000 below the liquid storage tank;

[0063] The second permanent magnet plate 1900 is installed at the bottom of the vibration absorption assembly and is positioned directly opposite the first permanent magnet plate 1800; the first permanent magnet plate 1800 and the second permanent magnet plate 1900 are magnetically repelled;

[0064] One end of the connecting and fixing device 1100 is fixed to the top of the vibration absorption assembly, and the other end is connected to the connecting pipeline between the liquid storage tank and the compressor.

[0065] The vibration absorption device 1000 provided by the present invention provides a vibration absorption component on the lower side of the compressor liquid storage tank, and permanent magnet plates made of permanent magnets are set on the bottom of the vibration absorption component and on the chassis 3000. The magnetic force between the two permanent magnet plates balances the eccentric mass of the liquid storage tank and the vibration absorption device 1000, making the compressor more stable during operation and solving the problem of compressor eccentricity caused by the liquid storage tank structure.

[0066] like Figure 4 As shown, further in this embodiment, the vibration-absorbing assembly includes a vibration-absorbing box, a fixing plate 1700, and a particle damping box 1202; wherein:

[0067] The fixing plate 1700 is installed inside the vibration absorption box;

[0068] The particle damping box 1202 is slidably disposed in the sliding groove of the fixed plate 1700 and can reciprocate along the sliding groove.

[0069] It should be noted that in the embodiment, the vibration absorbing box is in a cubic structure, comprising a vibration absorbing shell 1200 with one side open and a vibration absorbing cover 1300 covering the open side.

[0070] The particle damping tank 1202 is in a cubic structure and has one side open, and a damping tank cover 1201 is arranged at the open side. The particle damping tank 1202 is filled with damping particles 1203.

[0071] The particle damping tank 1202 is provided with a connecting device 1204, and the particle damping tank 1202 is connected in a limiting sliding connection manner in the sliding groove through the connecting device 1204.

[0072] As an optional embodiment of the present application, the fixing sheet 1700 is made of a memory alloy. The memory alloy fixing sheet 1700 has different rigidities at different temperatures, and in the embodiment, the fixing sheet 1700 is connected to the connecting device 1204 in an arc-shaped structure, and the curvature changes at different temperatures.

[0073] The present application can solve the problems of large vibration and noise of the compressor in operation by applying the vibration absorbing assembly at the bottom of the compressor liquid storage tank, clamping a particle damping tank 1202 on the memory alloy fixing sheet 1700 in the vibration absorbing assembly, and consuming the vibration of the compressor through the back and forth vibration of the particle damping tank 1202 to reduce the noise and vibration problems caused by the operation of the compressor.

[0074] As shown in Figure 5 As a further improvement of the present application, the fixing sheet 1700 comprises a connecting portion and an arc-shaped portion, an opening is formed in the sidewall of the vibration absorbing box for the connecting portion to pass through, and the sliding groove is formed in the arc-shaped portion.

[0075] As shown in Figure 4 and Figure 5 The particle damping tank 1202 is filled with a plurality of damping particles 1203, and each damping particle 1203 has different mass and damping.

[0076] The present application can further improve the vibration absorbing effect of the vibration absorbing device 1000 by arranging the damping particles 1203 in the particle damping tank 1202, and the damping particles 1203 further consume the vibration energy through friction and collision when the vibration absorbing device vibrates.

[0077] In order to further enrich the vibration absorbing frequency, a temperature adjusting assembly is arranged between the liquid storage tank, the compressor and the fixing sheet 1700.

[0078] The temperature of the memory alloy fixing plate 1700 can be changed, so that the curvature of the memory alloy is adjusted, the frequency of the particle damping box vibration is changed, the effective vibration absorption frequency of the vibration absorption device is changed, the effective vibration absorption range is widened, and the problem of single effective vibration absorption frequency of the vibration absorption device is solved.

[0079] As shown in Figures 1-5 The temperature adjusting assembly comprises a first heat conductor 1400, a second heat conductor 1500 and an electric heat transfer device 1600.

[0080] One end of the second heat conductor 1500 is fixed on the compressor, and the other end is close to the connecting part.

[0081] One end of the first heat conductor 1400 is fixed on the liquid storage tank, and the other end is close to the connecting part.

[0082] The electric heat transfer device is rotatably arranged on the connecting part and can be in contact with the first heat conductor 1400 or the second heat conductor 1500 when rotating.

[0083] The temperature adjusting assembly can solve the problem of temperature required when adjusting the frequency of the vibration absorption assembly, and the electric heat transfer device arranged on the vibration absorption assembly can conduct high temperature of the compressor cylinder to the memory alloy fixing plate when heating is required, and conduct low temperature of the liquid storage tank to the memory alloy fixing plate when cooling is required, so that the temperature of the memory alloy is adjustable.

[0084] As a further improvement of the present application, as shown in Figures 1-5 The connecting and fixing device 1100 comprises a connecting column and a connecting sheet.

[0085] The connecting column is fixed on the top of the vibration absorption assembly.

[0086] The connecting sheet is in an arc structure and wrapped outside the pipeline.

[0087] As shown in Figure 1 The compressor provided by the present application comprises a compressor body 2000, a liquid storage tank, a chassis 3000 and a vibration absorption device 1000.

[0088] The vibration absorption device 1000 of the present application is welded and installed on the bottom of the liquid storage tank, does not occupy the space of the compressor cavity, and does not affect the pipeline layout.

[0089] Specifically, the vibration absorbing device 1000 is connected through the connecting and fixing device 1100 and the connecting pipeline between the liquid storage tank and the compressor body 2000; the first permanent magnet sheet 1800 is fixedly connected with the bottom plate 3000; the second permanent magnet sheet 1900 is fixed at the bottom of the vibration absorbing shell 1200; the mutual repulsion force between the two permanent magnet sheets is designed to offset the compressor eccentricity caused by the compressor liquid storage tank and the vibration absorbing device, and the design process is as follows Figures 6-8 The first heat conductor 1400 is fixedly connected with the liquid storage tank, and the second heat conductor 1500 is fixedly connected with the compressor body 2000; the first heat conductor 1400 and the second heat conductor 1500 are metals with high thermal conductivity, for example, copper, which can respectively transmit the low temperature of the liquid storage tank and the high temperature of the compressor cylinder to the electric heat transfer device 1600. The material of the electric heat transfer device 1600 is also copper, which can rotate and is respectively connected with the first heat conductor 1400 and the second heat conductor 1500. The electric heat transfer device 1600 is fixedly connected with the memory alloy fixed sheet 1700, and the rigidity of the memory alloy fixed sheet 1700 can change with the change of temperature, for example, nickel-titanium alloy.

[0090] The memory alloy fixed sheet 1700 is fixed at both ends of the vibration absorbing shell 1200, and one end thereof extends out and is connected with the rotating heat transfer device 1600. The memory alloy fixed sheet 1700 clamps the connecting device 1204 of the particle damping box 1202 in the middle, and the connecting device 1204 is fixedly connected with the particle damping box 1202. When the temperature of the memory alloy fixed sheet 1700 changes, the rigidity of the memory alloy fixed sheet 1700 changes, and the vibration frequency of the particle damping box 1202 also changes, so that the vibration absorbing frequency of the device changes. The particle damping box 1202 is filled with damping particles 1203. The damping particles 1203 collide and rub with each other when vibrating, which further consumes the vibration energy of the compressor and reduces the vibration. By arranging particles with different masses and different dampings, the mass and damping of the device can be changed.

[0091] The application provides a design method of a vibration absorbing device, which comprises the following steps:

[0092] As shown in Figure 6 , the first step is to obtain the center of mass of the compressor, and the magnetic force between the first permanent magnet sheet and the second permanent magnet sheet is selected;

[0093] As shown in Figure 7 , the second step is to perform a vibration test on the compressor during the starting process to obtain the maximum frequency of vibration of the compressor during the starting process, and the frequency is designed as the initial vibration frequency f1 of the particle damping box 1202 in the memory alloy fixed sheet 1700 under the initial normal temperature, that is, as the initial vibration frequency f1 of the vibration absorbing assembly;

[0094] As shown in Figure 8As shown, in the third step, the vibration test is carried out to obtain the temperature of the memory alloy fixing plate corresponding to each vibration frequency f0 in the vibration absorption assembly, as the target temperature T0 of the memory alloy fixing plate in the vibration absorption assembly. Specifically, the temperature of the memory alloy fixing plate 1700 corresponding to each frequency of the left and right vibration of the particle damping tank 1202 in the vibration absorption device is obtained through the experiment, and the temperature can be directly adjusted in the subsequent process to control the vibration frequency. The temperature of the memory alloy fixing plate 1700 is changed by adjusting the rotating heat transfer device 1600 to the first heat conductor 1400 and the second heat conductor 1500, so that the corresponding target temperature can be reached under different compressor operating frequencies.

[0095] As a further improvement of the present application, the centroid position of the compressor is obtained, and the selection of the magnetic force between the first permanent magnet plate and the second permanent magnet plate includes:

[0096] The centroid position of the compressor and the eccentric mass of the liquid storage tank and the vibration absorption assembly are obtained;

[0097] Based on the obtained centroid position and eccentric mass, the required magnetic force value between the first permanent magnet plate and the second permanent magnet plate is calculated, that is, the balance magnetic force value is calculated;

[0098] Based on the calculated magnetic force value, the specifications of the first permanent magnet plate and the second permanent magnet plate are confirmed, so that the centroid of the compressor is located at the center of the cylinder structure of the compressor.

[0099] As shown in the figure, Figure 9 The present application provides a control method for controlling the vibration absorption device, which includes the following steps:

[0100] Step S1, after the user sends the start instruction, the start instruction is received, and the compressor is stably operated;

[0101] Step S2, obtaining the target temperature T0 of the memory alloy fixing plate corresponding to the working frequency of the variable frequency compressor;

[0102] Step S3, obtaining the real-time temperature T of the memory alloy fixing plate;

[0103] Step S4, when the real-time temperature T is equal to the target temperature T0, the rotating heat transfer device in the vibration absorption assembly is controlled to rotate between the first heat conductor 1400 and the second heat conductor, no heat conduction is performed, and the real-time temperature of the memory alloy fixing plate is maintained within the target temperature T0 range;

[0104] Step S5, when the real-time temperature T is greater than the target temperature T0, the rotating heat transfer device in the vibration absorption assembly is controlled to contact the first heat conductor 1400, and the low temperature of the liquid storage tank is transferred to the memory alloy fixing plate to reduce the temperature to the target temperature, so that the real-time temperature of the memory alloy fixing plate is reduced to the target temperature T0;

[0105] Step S6: When the real-time temperature T < the target temperature T0, control the rotating heat transfer device in the vibration absorption assembly to rotate to contact the second heat conductor, transfer the high temperature of the compressor cylinder to the shape memory alloy fixing plate, so that the temperature of the shape memory alloy fixing plate rises to the target temperature, so that the real-time temperature of the shape memory alloy fixing plate rises to the target temperature T0.

[0106] Step S7: Determine if the compressor's operating frequency has changed. If so, return to step S2 to obtain the target temperature T0 of the shape memory alloy fixing plate at the new operating frequency of the variable frequency compressor; otherwise, return to step S3 to obtain the real-time temperature T of the shape memory alloy fixing plate. Determine if the compressor frequency has changed. If it has, continue obtaining the shape memory alloy fixing plate temperature at the operating frequency and repeat the above process. If it has not changed, continue to determine if the shape memory alloy fixing plate is at the target temperature at that frequency. This ensures that the vibration frequency of the vibration absorption device is always equal to the compressor's operating frequency to achieve the best vibration absorption effect.

[0107] First, it should be noted that "inward" refers to the direction towards the center of the storage space, while "outward" refers to the direction away from the center of the storage space.

[0108] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the appendix. Figure 1 The orientations or positional relationships shown are for the purpose of facilitating and simplifying the description of the present invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

[0109] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0110] In the present application, unless specifically defined otherwise, the terms "mounting", "connected", "connecting", "fixed", "fixedly connected", "connection", "fixedly connected", "connected", "fixed", and the like should be construed broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements, unless specifically defined otherwise. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0111] In the present application, unless specifically defined otherwise, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0112] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description 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 appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present application and the features of different embodiments or examples without contradiction.

[0113] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A vibration absorbing device characterized by comprising: The vibration absorbing device comprises a connecting fixing device, a vibration absorbing assembly, a first permanent magnet piece and a second permanent magnet piece. The vibration absorbing assembly comprises a vibration absorbing box, a fixing piece and a granular damping tank. The fixing piece is made of a memory alloy and is installed in the inner cavity of the vibration absorbing box. The fixing piece comprises a connecting part and an arc-shaped part. An opening is formed in the sidewall of the vibration absorbing box for the connecting part to pass through. A sliding groove is formed in the arc-shaped part. The granular damping tank is slidably arranged in the sliding groove and can reciprocate along the sliding groove. The first permanent magnet piece is installed on the bottom plate below the liquid storage tank. The second permanent magnet piece is installed at the bottom of the vibration absorbing box and is opposite to the first permanent magnet piece. The first permanent magnet piece and the second permanent magnet piece repel each other magnetically. One end of the connecting fixing device is fixed to the top of the vibration absorbing box, and the other end is connected to the connecting pipeline between the liquid storage tank and the compressor.

2. The vibration absorbing device according to claim 1, characterized by A temperature adjusting assembly is arranged between the liquid storage tank, the compressor and the fixing piece.

3. The vibration absorbing device according to claim 1, characterized by The temperature adjusting assembly comprises a first heat conductor, a second heat conductor and an electric heat transfer device. One end of the second heat conductor is fixed to the compressor, and the other end is close to the connecting part. One end of the first heat conductor is fixed to the liquid storage tank, and the other end is close to the connecting part.

4. A compressor characterized by, The electric heat transfer device is rotatably arranged on the connecting part and can be in contact with the first heat conductor or the second heat conductor when rotating.

5. A method of designing a vibration absorbing device according to any one of claims 1 to 3, characterized by, The granular damping tank is filled with a plurality of damping particles, each of which has different mass and damping. The connecting fixing device comprises a connecting column and a connecting piece. The connecting column is fixed to the top of the vibration absorbing assembly. The connecting piece is in an arc-shaped structure and is wrapped outside the pipeline.

6. A control method characterized by, The vibration absorbing device comprises a compressor body, a liquid storage tank, a bottom plate and a vibration absorbing device as claimed in any one of claims 1-3. The liquid storage tank is fixed to the sidewall of the compressor body and is connected to the air inlet of the compressor body through a pipeline. The compressor body is fixed to the bottom plate through a plurality of damping foot pads. The vibration absorbing device is installed between the bottom plate and the pipeline. The method comprises the following steps: The mass center position of the compressor is obtained, and the magnetic force between the first permanent magnet piece and the second permanent magnet piece is selected. A start-up test is performed to obtain the maximum vibration frequency of the compressor during start-up as the initial vibration frequency f1 of the vibration absorbing assembly. A vibration test is performed to obtain the temperature of the memory alloy fixing piece corresponding to each vibration frequency f0 in the vibration absorbing assembly as the target temperature T0 of the memory alloy fixing piece in the vibration absorbing assembly. The method for controlling the vibration absorbing device as claimed in any one of claims 1-3 comprises the following steps: A start-up instruction is received. The target temperature T0 of the memory alloy fixing piece corresponding to the working frequency of the variable frequency compressor is obtained. The real-time temperature T of the memory alloy fixing piece is obtained. When the real-time temperature T is equal to the target temperature T0, the rotating heat transfer device in the vibration absorbing assembly is controlled to rotate between the first heat conductor and the second heat conductor, no heat conduction is performed, and the real-time temperature of the memory alloy fixing piece is maintained within the target temperature T0 range. When the real-time temperature T is greater than the target temperature T0, the rotating heat transfer device in the vibration absorbing assembly is controlled to contact the first heat conductor to reduce the real-time temperature of the memory alloy fixing piece to the target temperature T0; When the real-time temperature T is less than the target temperature T0, the rotating heat transfer device in the vibration absorbing assembly is controlled to contact the second heat conductor to increase the real-time temperature of the memory alloy fixing piece to the target temperature T0; It is judged whether the working frequency of the compressor is changed, if yes, the target temperature T0 of the memory alloy fixing piece corresponding to the new working frequency of the variable frequency compressor is acquired again; otherwise, the real-time temperature T of the memory alloy fixing piece is acquired again.

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