Vibration absorption device, compressor and method

Abstract

The invention provides a vibration absorption device, a compressor and a method, relates to the technical field of compressors, and solves the technical problem that the vibration absorption device of the compressor cannot solve eccentricity. The vibration absorption device comprises a connecting and fixing device, a vibration absorption assembly, a first permanent magnet sheet and a second permanent magnet sheet, the first permanent magnet sheet is mounted on the chassis below the liquid storage tank; the second permanent magnet sheet is mounted at the bottom of the vibration absorption assembly and is opposite to the first permanent magnet sheet; the first permanent magnet sheets and the second permanent magnet sheets are magnetically repellent; one end of the connecting and fixing device is fixed at the top of the vibration absorption assembly, and the other end is connected with a connecting pipeline between the liquid storage tank and the compressor. The vibration absorption assembly is arranged on the lower side of the liquid storage tank of the compressor, the permanent magnet pieces are arranged at the bottom of the vibration absorption assembly and on the chassis, and the eccentric mass of the liquid storage tank and the vibration absorption device is balanced through the magnetic force between the two permanent magnet pieces, so that the compressor is more stable during operation, and the problem that the compressor is eccentric due to the liquid storage tank structure is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of compressors, and in particular to a vibration absorbing device, a compressor and a method. Background Art

[0002] As air conditioner outdoor units become smaller and lighter, it is increasingly difficult to solve noise and vibration problems during the development phase. At present, most compressors in outdoor units are variable frequency compressors. Since the liquid storage tank is connected to the side wall of the cylinder, and the rotating parts inside the variable frequency compressor are constantly changing under the suction and exhaust pressure, the inertia force and inertia moment of the compressor are constantly changing, causing the compressor to vibrate eccentrically.

[0003] In order to reduce vibration and noise, three rubber pads are usually set between the compressor pad and the chassis to reduce the vibration of the compressor. However, after the rubber pads are set, their natural frequency is fixed and they cannot achieve effective broadband vibration and noise reduction, causing the compressor to vibrate and make loud noise in certain frequency bands or during the start-up and shutdown process.

[0004] The prior art discloses a particle damping vibration and noise reducer for air-conditioning compressors, which uses the energy dissipation effect of damping to reduce vibration and noise by arranging a particle damper containing multiple particles and multiple units on the outside of the compressor. However, the vibration reduction frequency of the device is fixed after setting, so it is only effective for vibrations at a single compressor operating frequency.

[0005] The prior art also discloses a vibration reduction device, a clothes dryer and a vibration reduction control method, wherein the vibration reduction device includes a housing, an electromagnetic component and a magnetorheological fluid filled in the housing, and the electromagnetic component is used to adjust the stiffness of the magnetorheological fluid in the housing to change the stiffness of the vibration reduction device so that the natural frequency of the vibration reduction device can match the operating frequency of the device to be damped, so as to reduce the vibration of the device to be damped. However, the device cannot solve the problem of compressor eccentricity and the problem of vibration and high noise during the start and stop of the compressor. Summary of the invention

[0006] The object of the present invention is to provide a vibration absorbing device, a compressor and a method to solve the technical problem that the vibration absorbing device of the compressor in the prior art cannot solve the eccentricity.

[0007] To achieve the above object, the present invention provides the following technical solutions:

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

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

[0010] The second permanent magnet piece is installed at the bottom of the vibration absorbing component 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;

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

[0012] The vibration absorbing device provided by the present invention arranges a vibration absorbing assembly on the lower side of the compressor liquid storage tank, and arranges permanent magnet sheets made of permanent magnets on the bottom of the vibration absorbing assembly and the chassis. The magnetic force between the two permanent magnet sheets is used to balance the eccentric mass of the liquid storage tank and the vibration absorbing device, so that the compressor is more stable during operation, and the problem of compressor eccentricity caused by the liquid storage tank structure is solved.

[0013] As a further improvement of the present invention, the vibration absorbing assembly includes a vibration absorbing box, a fixing plate, and a particle damping box; wherein:

[0014] The fixing sheet is installed in the inner cavity of the vibration absorbing box;

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

[0016] As a further improvement of the present invention, the fixing plate is made of memory alloy.

[0017] The present invention applies a vibration absorbing component to the bottom of the compressor liquid storage tank, in which a particle damping box is clamped on a memory alloy fixing plate. The vibration of the compressor is consumed by the back-and-forth vibration of the damping box, thereby reducing the noise and vibration problems caused by the operation of the compressor, and can solve the problems of vibration and high noise during the operation of the compressor.

[0018] As a further improvement of the present invention, the fixing plate includes a connecting portion and an arc-shaped portion; an opening for the connecting portion to pass through is provided on the side wall of the vibration absorbing box; and the sliding groove is provided on the arc-shaped portion.

[0019] As a further improvement of the present invention, the particle damping box is filled with a variety of damping particles, and each of the damping particles has different mass and damping.

[0020] The present invention arranges damping particles inside the particle damping box, and when the vibration absorber vibrates, friction and collision between the damping particles further consume vibration energy, thereby improving the vibration absorption effect of the vibration absorber.

[0021] As a further improvement of the present invention, it also includes a temperature regulating component arranged between the liquid storage tank, the compressor and the fixing plate.

[0022] The present invention can change the temperature of the memory alloy fixing plate by setting a temperature adjustment component, thereby adjusting the curvature of the memory alloy and changing the vibration frequency of the damping box; the effective vibration absorption frequency of the vibration absorber is changed, and the effective vibration absorption range is widened; and the problem of a single effective vibration absorption frequency of the vibration absorption device is solved.

[0023] As a further improvement of the present invention, the temperature adjustment component includes a first heat conductor, a second heat conductor, and an electric heat transfer device; wherein:

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

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

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

[0027] The present invention can solve the problem that the vibration absorbing component needs temperature when adjusting the frequency by arranging a rotatable heat transfer device on the vibration absorbing component; by arranging a rotatable heat transfer device on the vibration absorbing component, the high temperature of the compressor cylinder is transferred to the memory alloy fixing plate when the temperature needs to be increased, and the low temperature of the liquid storage tank is transferred to the memory alloy fixing plate when the temperature needs to be reduced, so as to achieve the purpose of adjustable temperature of the memory alloy.

[0028] As a further improvement of the present invention, the connecting and fixing device comprises a connecting column and a connecting sheet; wherein:

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

[0030] The connecting piece is an arc-shaped structure and is wrapped around the outside of the pipeline.

[0031] A compressor provided by the present invention comprises a compressor body, a liquid storage tank, a chassis and the vibration absorbing device; the liquid storage tank is fixed on the side wall of the compressor body, and the bottom is connected to the air intake port of the compressor body through a pipeline; the compressor body is fixed on the chassis through a plurality of vibration-damping pads; the vibration absorbing device is installed between the chassis and the pipeline.

[0032] The present invention provides a method for designing the vibration absorbing device, comprising the following steps:

[0033] Obtaining the center of mass position of the compressor, and selecting the magnetic force between the first permanent magnet piece and the second permanent magnet piece;

[0034] Perform a startup test to obtain the maximum vibration frequency of the compressor during startup, which is used as the initial vibration frequency f1 of the vibration absorbing component;

[0035] A 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 invention, the step of obtaining the center of mass position of the compressor and selecting the magnetic force between the first permanent magnet piece and the second permanent magnet piece includes:

[0037] Obtain the center of mass position of the compressor and the eccentric mass of the liquid storage tank and the vibration absorbing assembly;

[0038] Calculate the required magnetic force value between the first permanent magnet sheet and the second permanent magnet sheet based on the acquired center of mass position and eccentric mass;

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

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

[0041] Receive power-on command;

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

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

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

[0045] When the real-time temperature T>the target temperature T0, the rotating heat transfer device in the vibration absorbing assembly is controlled to be in contact with the first heat conductor, so that the real-time temperature of the memory alloy fixing plate is reduced 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 be in contact with the second heat conductor, so that the real-time temperature of the memory alloy fixing plate is increased to the target temperature T0;

[0047] It is determined whether the operating frequency of the compressor has changed. If so, the target temperature T0 of the memory alloy fixing plate corresponding to the new operating 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 THE DRAWINGS

[0048] 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.

[0049] Figure 1 It is a schematic diagram of the structure of the compressor of the present invention;

[0050] Figure 2 1 is a schematic diagram of the three-dimensional structure of the vibration absorbing device of the present invention;

[0051] Figure 3 2 is a schematic diagram of the three-dimensional structure of the vibration absorbing device of the present invention;

[0052] Figure 4 is a schematic structural diagram of the vibration absorbing device of the present invention with the cover removed;

[0053] Figure 5 It is a schematic diagram of the explosion structure of the vibration absorbing device of the present invention;

[0054] Figure 6 This is a flow chart of the magnetic force design between permanent magnets in the first step of the design method of the present invention;

[0055] Figure 7 It is the flow chart of the design of the original vibration frequency of the particle damping box in the second step of the design method of the present invention;

[0056] Figure 8 This is a flow chart of the target temperature design of the memory alloy fixing plate in the third step of the design method of the present invention;

[0057] Fig. 9 It is a control flow chart of the control method of the present invention.

[0058] In the figure, 1100 is a connecting and fixing device; 1200 is a vibration absorbing shell; 1201 is a damping box cover; 1202 is a particle damping box; 1203 is a damping particle; 1204 is a connecting device; 1300 is a vibration absorbing cover; 1400 is a first heat conductor; 1500 is a second heat conductor; 1600 is an electric heat transfer device; 1700 is a fixing plate; 1800 is a first permanent magnet plate; 1900 is a second permanent magnet plate; 1000 is a vibration absorbing device; 2000 is a compressor body; 3000 is a chassis. DETAILED DESCRIPTION

[0059] 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.

[0060] like Figure 1 As shown, currently, the compressor in the air conditioner outdoor unit is generally an eccentric structure and a variable frequency compressor. In order to reduce the vibration and noise of the compressor during operation, three rubber pads are usually set at the connection between the compressor pad and the chassis 3000 to reduce the vibration of the compressor, but the pads cannot achieve effective broadband vibration reduction. Therefore, the present invention designs a compressor vibration absorbing device with variable stiffness, variable mass and variable damping.

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

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

[0063] The second permanent magnet piece 1900 is installed at the bottom of the vibration absorbing assembly, and is arranged opposite to the first permanent magnet piece 1800; the first permanent magnet piece 1800 and the second permanent magnet piece 1900 are magnetically repelled from each other;

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

[0065] The vibration absorbing device 1000 provided by the present invention arranges a vibration absorbing component on the lower side of the compressor liquid storage tank, and arranges a permanent magnet sheet made of permanent magnets on the bottom of the vibration absorbing component and the chassis 3000. The magnetic force between the two permanent magnet sheets is used to balance the eccentric mass of the liquid storage tank and the vibration absorbing device 1000, so that the compressor is more stable during operation, and the problem of compressor eccentricity caused by the liquid storage tank structure is solved.

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

[0067] The fixing sheet 1700 is installed in the inner cavity of the vibration absorbing box;

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

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

[0070] The particle damping box 1202 is a cubic structure, and one side is an open structure, and a damping box cover 1201 is provided at the open portion. The particle damping box 1202 is filled with damping particles 1203 .

[0071] A connecting device 1204 is provided on the top of the particle damping box 1202 , and the particle damping box 1202 is connected in the sliding groove by the connecting device 1204 in a position-limiting sliding connection manner.

[0072] As an optional embodiment of the present invention, the fixing plate 1700 is made of memory alloy. The rigidity of the memory alloy fixing plate 1700 is different at different temperatures. In this embodiment, the connection between the fixing plate 1700 and the connecting device 1204 is a curved structure, and its curvature will change at different temperatures.

[0073] The present invention applies a vibration absorbing component to the bottom of the compressor liquid storage tank, in which a particle damping box 1202 is clamped on a memory alloy fixing plate 1700. The particle damping box 1202 vibrates back and forth to consume the vibration of the compressor, thereby reducing the noise and vibration problems caused by the operation of the compressor, thereby solving the problem of vibration and high noise during the operation of the compressor.

[0074] like Figure 5 As shown, as a further improvement of the present invention, the fixing plate 1700 includes a connecting portion and an arc-shaped portion; an opening for the connecting portion to pass through is provided on the side wall of the vibration absorbing box; and a sliding groove is provided on the arc-shaped portion.

[0075] like Figure 4 and Figure 5 As shown, the particle damping box 1202 is filled with a variety of damping particles 1203 , and each type of damping particle 1203 has different mass and damping.

[0076] In the present invention, damping particles 1203 are arranged inside the particle damping box 1202 . When the vibration absorbing device vibrates, friction and collision between the damping particles 1203 further consume vibration energy, thereby improving the vibration absorbing effect of the vibration absorbing device 1000 .

[0077] In order to further enrich the vibration absorption frequency, a temperature adjustment component is also included which is arranged between the liquid storage tank, the compressor and the fixing plate 1700.

[0078] The present invention can change the temperature of the memory alloy fixing plate 1700 by setting a temperature adjustment component, thereby adjusting the curvature of the memory alloy and changing the vibration frequency of the particle damping box; changing the effective vibration absorption frequency of the vibration absorption device and widening the effective vibration absorption range; and solving the problem of the single effective vibration absorption frequency of the vibration absorption device.

[0079] like Figure 1-Figure 5 As shown, the temperature adjustment component includes a first heat conductor 1400, a second heat conductor 1500, and an electric heat transfer device 1600; wherein:

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

[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 portion;

[0082] The electric heat transfer device is rotatably disposed on the connection portion, and can be in contact and connected with the first heat conductor 1400 or the second heat conductor 1500 when rotating.

[0083] The present invention can solve the problem that the vibration absorbing component needs temperature when adjusting the frequency by arranging a rotatable heat transfer device on the vibration absorbing component; by arranging a rotatable heat transfer device on the vibration absorbing component, the high temperature of the compressor cylinder is transferred to the memory alloy fixing plate when the temperature needs to be increased, and the low temperature of the liquid storage tank is transferred to the memory alloy fixing plate when the temperature needs to be reduced, so as to achieve the purpose of adjustable temperature of the memory alloy.

[0084] As a further improvement of the present invention, Figure 1-Figure 5 As shown, the connecting and fixing device 1100 includes a connecting column and a connecting sheet; wherein:

[0085] The connecting column is fixed on the top of the vibration absorbing assembly;

[0086] The connecting piece is an arc-shaped structure and is wrapped around the outside of the pipeline.

[0087] like Figure 1 As shown, a compressor provided by the present invention includes a compressor body 2000, a liquid storage tank, a chassis 3000 and a vibration absorbing device 1000; the liquid storage tank is fixed on the side wall of the compressor body, and the bottom is connected to the air intake port of the compressor body 2000 through a pipeline; the compressor body 2000 is fixed on the chassis 3000 through a plurality of vibration-damping pads; the vibration absorbing device 1000 is installed between the chassis 3000 and the pipeline.

[0088] The vibration absorbing device 1000 of the present invention is welded and installed at the bottom of the liquid storage tank, does not occupy the compressor cavity space, and does not affect the direction of the pipeline.

[0089] Specifically, the vibration absorbing device 1000 is connected to the connecting pipe between the liquid storage tank and the compressor body 2000 through the connecting fixing device 1100; the first permanent magnet piece 1800 is fixedly connected to the chassis 3000; the second permanent magnet piece 1900 is fixed to the bottom of the vibration absorbing shell 1200; the mutual repulsive force between the two permanent magnet pieces is designed to offset the eccentricity of the compressor caused by the compressor liquid storage tank and the vibration absorbing device. The design process is as follows: Figure 6-8 The first heat conductor 1400 is fixedly connected to the liquid storage tank, and the second heat conductor 1500 is fixedly connected to the compressor body 2000. The first heat conductor 1400 and the second heat conductor 1500 are metals with high thermal conductivity, such as copper, which can transfer the low temperature of the liquid storage tank and the high temperature of the compressor cylinder to the electric heat transfer device 1600 respectively. The material of the electric heat transfer device 1600 is also copper, which is rotatable and respectively connects the first heat conductor 1400 and the second heat conductor 1500. The electric heat transfer device 1600 is fixedly connected to the memory alloy fixing plate 1700, and the stiffness of the memory alloy fixing plate 1700 can change with the change of temperature, such as nickel-titanium alloy.

[0090] The memory alloy fixing plate 1700 is fixed at both ends on the vibration absorbing shell 1200, and one end thereof extends out to be connected to the rotating heat transfer device 1600. The memory alloy fixing plate 1700 clamps the connecting device 1204 of the particle damping box 1202 in the middle, and the connecting device 1204 is fixedly connected to the particle damping box 1202. The temperature change of the memory alloy fixing plate 1700 causes its stiffness to change, and the vibration frequency of the particle damping box 1202 also changes accordingly, thereby changing the vibration absorption frequency of the device. The particle damping box 1202 is filled with damping particles 1203. When the damping particles 1203 vibrate, they collide and rub against each other to further consume the vibration energy of the compressor and reduce its vibration. By setting particles of different masses and different damping, the purpose of variable mass and damping of the device is achieved.

[0091] The present invention provides a method for designing a vibration absorbing device, comprising the following steps:

[0092] like Figure 6 As shown, the first step is to obtain the center of mass position of the compressor and select the magnetic force between the first permanent magnet piece and the second permanent magnet piece;

[0093] like Figure 7 As shown, in the second step, a vibration test is performed on the compressor during startup to obtain the maximum vibration frequency of the compressor during startup, and the frequency is designed as the initial vibration frequency f1 of the particle damping box 1202 on the memory alloy fixing plate 1700 under the initial normal temperature state, that is, as the initial vibration frequency f1 of the vibration absorbing component;

[0094] like Figure 8As shown, in the third step, a vibration test is performed 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 box 1202 in the vibration absorption device is obtained in the experiment, and the temperature can be directly adjusted later to control the vibration absorption 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 it can reach the corresponding target temperature at different compressor operating frequencies.

[0095] As a further improvement of the present invention, obtaining the mass center position of the compressor and selecting the magnetic force between the first permanent magnet piece and the second permanent magnet piece include:

[0096] Obtain the center of mass position of the compressor and the eccentric mass of the liquid storage tank and the vibration absorbing assembly;

[0097] Based on the acquired center of mass position and eccentric mass, the required magnetic force value between the first permanent magnet sheet and the second permanent magnet sheet is calculated, that is, the balanced magnetic force value is calculated;

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

[0099] like Fig. 9 As shown, the present invention provides a control method for controlling a vibration absorbing device, and the method comprises the following steps:

[0100] Step S1, after the user sends a power-on command, receiving the power-on command, and the compressor is running stably;

[0101] Step S2, obtaining the target temperature T0 of the memory alloy fixing plate corresponding to the operating 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=target temperature T0, the rotating heat transfer device in the vibration absorbing assembly is controlled to move to between the first heat conductor 1400 and the second heat conductor, and heat conduction is not performed, so as to keep the real-time temperature of the memory alloy fixing plate within the target temperature T0 range;

[0104] Step S5, when the real-time temperature T> the target temperature T0, the rotating heat transfer device in the vibration absorbing assembly is controlled to be in contact with the first heat conductor 1400, and the low temperature of the liquid storage tank is transferred to the memory alloy fixing plate to cool it down 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 is less than the target temperature T0, the rotating heat transfer device in the vibration absorbing assembly is controlled to be in contact with the second heat conductor, so as to transfer the high temperature of the compressor cylinder to the memory alloy fixing plate, so as to raise the temperature to the target temperature, so as to raise the real-time temperature of the memory alloy fixing plate to the target temperature T0;

[0106] Step S7, determine whether the operating frequency of the compressor has changed. If so, return to step S2 to obtain the target temperature T0 of the memory alloy stator corresponding to the new operating frequency of the variable frequency compressor; otherwise, return to step S3 to obtain the real-time temperature T of the memory alloy stator again. Determine whether the compressor frequency has changed. If it has changed, continue to obtain the temperature of the memory alloy stator at the operating frequency and repeat the above process. If it has not changed, continue to determine whether the memory alloy stator is at the target temperature at the frequency. Make the vibration frequency of the vibration absorption device always equal to the operating frequency of the compressor to achieve the best vibration absorption effect.

[0107] First of all, it should be explained here that “inward” refers to the direction toward the center of the accommodating space, and “outward” refers to the direction away from the center of the accommodating space.

[0108] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0109] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0110] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0111] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0112] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" 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 representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0113] 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 absorbing device, characterized in that: It includes a connecting and fixing device, a vibration absorbing component, a first permanent magnet piece and a second permanent magnet piece; wherein: The first permanent magnet sheet is installed on the chassis below the liquid storage tank; The second permanent magnet piece is installed at the bottom of the vibration absorbing component 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 to the top of the vibration absorbing component, 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 in that: The vibration absorbing assembly includes a vibration absorbing box, a fixing plate, and a particle damping box; wherein: The fixing sheet is installed in the inner cavity of the vibration absorbing box; The particle damping box is slidably arranged in the sliding groove of the fixing plate and can reciprocate along the sliding groove.

3. The vibration absorbing device according to claim 2, characterized in that: The fixing plate is made of memory alloy.

4. The vibration absorbing device according to claim 3, characterized in that: The fixing plate comprises a connecting portion and an arc-shaped portion; an opening for the connecting portion to pass through is provided on the side wall of the vibration absorbing box; and the sliding groove is provided on the arc-shaped portion.

5. The vibration absorbing device according to claim 2, characterized in that: The particle damping box is filled with a variety of damping particles, and each of the damping particles has different mass and damping.

6. The vibration absorbing device according to claim 4, characterized in that: It also includes a temperature regulating component arranged between the liquid storage tank, the compressor and the fixing plate.

7. The vibration absorbing device according to claim 6, characterized in that: The temperature adjustment component includes a first heat conductor, a second heat conductor, and an electric heat transfer device; wherein: One end of the second heat conductor is fixed on the compressor, and the other end is close to the connecting portion; One end of the first heat conductor is fixed on the liquid storage tank, and the other end is close to the connecting portion; The electric heat transfer device is rotatably arranged on the connecting portion, and can be in contact and connected with the first heat conductor or the second heat conductor when rotating.

8. The vibration absorbing device according to claim 1, characterized in that: The connecting and fixing device comprises a connecting column and a connecting piece; wherein: The connecting column is fixed on the top of the vibration absorbing assembly; The connecting piece is an arc-shaped structure and is wrapped around the outside of the pipeline.

9. A compressor, characterized in that: It comprises a compressor body, a liquid storage tank, a chassis and a vibration absorbing device as described in any one of claims 1 to 8; the liquid storage tank is fixed to the side wall of the compressor body, and the bottom is connected to the air intake port of the compressor body through a pipeline; the compressor body is fixed to the chassis through a plurality of vibration-damping pads; the vibration absorbing device is installed between the chassis and the pipeline.

10. A method for designing a vibration absorbing device as claimed in any one of claims 1 to 8, characterized in that: The following steps are involved: Obtaining the center of mass position of the compressor, and selecting the magnetic force between the first permanent magnet piece and the second permanent magnet piece; Perform a startup test to obtain the maximum vibration frequency of the compressor during startup, which is used as the initial vibration frequency f1 of the vibration absorbing component; A 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.

11. A control method, characterized in that: Used to control the vibration absorbing device as claimed in any one of claims 1 to 8, the method comprises the following steps: Receive power-on command; Obtain the target temperature T0 of the memory alloy fixing plate corresponding to the operating frequency of the variable frequency compressor; Obtain the real-time temperature T of the memory alloy fixing plate; When the real-time temperature T=target temperature T0, the rotating heat transfer device in the vibration absorbing assembly is controlled to move to between the first heat conductor and the second heat conductor, and no heat conduction is performed, so as to keep the real-time temperature of the memory alloy fixing plate within the target temperature T0 range; When the real-time temperature T>the target temperature T0, the rotating heat transfer device in the vibration absorbing assembly is controlled to be in contact with the first heat conductor, so that the real-time temperature of the memory alloy fixing plate is reduced 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 be in contact with the second heat conductor, so that the real-time temperature of the memory alloy fixing plate is increased to the target temperature T0; It is determined whether the operating frequency of the compressor has changed. If so, the target temperature T0 of the memory alloy fixing plate corresponding to the new operating frequency of the variable frequency compressor is obtained again; otherwise, the real-time temperature T of the memory alloy fixing plate is obtained again.

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