Dynamic vibration absorber, liquid storage tank, compressor assembly and air conditioner

Abstract

The present application relates to a dynamic vibration absorber, a liquid reservoir, a compressor assembly and an air conditioner, including a base and a plurality of vibration damping bodies connected to the base, and the base is configured to be on a vibrating body. Among them, a part of the vibration damping bodies are jointly constructed to be able to damp vibrations in at least two of three linear directions that intersect pairwise and are not coplanar, and another part of the vibration damping bodies are jointly constructed to be able to suppress vibrations in at least one of three rotation directions rotationally arranged around the three linear directions, and all the vibration damping bodies are jointly constructed to be able to suppress vibrations in at least three of the three linear directions and the three rotation directions. The present application is mounted on the vibrating body through the base. When the vibrating body vibrates, the plurality of vibration damping bodies can suppress vibrations in at least two linear directions and vibrations in at least one rotation direction, realizing vibration damping in multiple directions of the vibrating body, and the vibration absorption effect is very remarkable.

Description

Technical Field

[0001] The present application relates to the technical field of refrigeration equipment, and particularly to a dynamic vibration absorber, a liquid storage tank, a compressor assembly and an air conditioner. Background Art

[0002] In related technologies, a liquid reservoir (such as a gas-liquid separator) is usually configured on one side of a compressor to protect the compressor from liquid slugging. During the operation of the compressor, air flow continuously impacts the inner wall of the liquid reservoir, causing the liquid reservoir to vibrate. Since the liquid reservoir is connected to the compressor, the vibration of the liquid reservoir will exacerbate the vibration of the compressor. Moreover, the liquid reservoir is usually only supported by a bracket on one side of the compressor. When the compressor vibrates, it is easy to cause the liquid reservoir to reciprocate swing tangentially along the outer circumference of the compressor, further exacerbating the vibration of the compressor. Summary of the Invention

[0003] In view of the problem that the existing liquid reservoir is prone to exacerbate the vibration of the compressor, the present application provides a dynamic vibration absorber, a liquid storage tank, a compressor assembly and an air conditioner, which have the technical effect of damping vibration in multiple directions.

[0004] A dynamic vibration absorber includes:

[0005] a base configured on a vibrating body; and

[0006] a plurality of vibration damping bodies connected to the base;

[0007] wherein, a part of the vibration damping bodies are jointly configured to be able to suppress vibrations on at least two of three linear directions that intersect pairwise and are not coplanar, and another part of the vibration damping bodies are jointly configured to be able to suppress vibrations on at least one of three rotational directions that are rotationally arranged around the three linear directions, and all the vibration damping bodies are jointly configured to be able to suppress vibrations on at least three of the three linear directions and the three rotational directions.

[0008] In one embodiment, the plurality of vibration damping bodies include at least two linear vibration damping bodies and at least one rotational vibration damping body. Each linear vibration damping body and each rotational vibration damping body have a vibration damping direction. The vibration damping direction of each linear vibration damping body is set corresponding to one of the three linear directions and has a component at least in the corresponding linear direction. The vibration damping direction of each rotational vibration damping body is set corresponding to one of the three rotational directions and has a component at least in the corresponding rotational direction. And the vibration damping directions of all the vibration damping bodies are set corresponding to at least three of the three linear directions and the three rotational directions.

[0009] In one embodiment, the vibration damping direction of each of the linear vibration dampers is linear and arranged along the corresponding linear direction, and the vibration damping direction of each of the rotational vibration dampers is arc-shaped and arranged along the corresponding rotational direction.

[0010] In one embodiment, each of the vibration dampers includes an elastic part and a counterweight part. The elastic part is connected to the base, and the counterweight part is arranged on the elastic part. The elastic part is configured to elastically expand and contract in its own deformation direction when the base vibrates, and the counterweight part moves along the deformation direction of the elastic part when the elastic part elastically expands and contracts.

[0011] Wherein, the vibration damping direction of each of the vibration dampers is consistent with the deformation direction of its own elastic part.

[0012] In one embodiment, the at least two linear vibration dampers include a first vibration damper, and the at least one rotational vibration damper includes a second vibration damper; the elastic part and the counterweight part of the first vibration damper and / or the second vibration damper are respectively a first elastic part and a first counterweight part.

[0013] A guiding part is constructed on the base, and the first elastic part is correspondingly installed on the guiding part. The guiding part guides the first elastic part to elastically expand and contract only in its own deformation direction.

[0014] The first counterweight part is fixedly connected to the first elastic part and moves along the guiding part when the first elastic part elastically expands and contracts.

[0015] In one embodiment, the first elastic part includes a first spring and a second spring, and the first counterweight part includes a slider and a counterweight rod.

[0016] The first spring and the second spring are arranged adjacent to each other along the corresponding deformation direction; the slider is fixedly connected between the opposite ends of the first spring and the second spring, and the opposite ends of the first spring and the second spring are both connected to the guiding part.

[0017] The counterweight rod is fixed on the slider, and the slider is slidably arranged along the guiding part.

[0018] In one embodiment, the counterweight rod includes a rod body and a plurality of particles. The rod body is fixedly connected to the slider and defines a cavity, and the plurality of particles are filled in the cavity.

[0019] In one embodiment, the plurality of particles are configured to be able to collide with each other in the cavity.

[0020] In one embodiment, the at least two linear vibration suppressors include a third vibration suppressor, and the elastic part and the counterweight of the third vibration suppressor are a second elastic part and a second counterweight respectively;

[0021] The second elastic part includes a deformation support and a guide rod extending along its own deformation direction. The deformation support is fixedly connected to the base and the second counterweight on both sides in its own deformation direction, and has two socket parts and defines a hollow area between the two socket parts; both of the two socket parts are sleeved on the guide rod and are limited between the two ends in the extending direction of the guide rod itself;

[0022] The deformation support is configured such that when elastic deformation occurs, the two socket parts slide along the guide rod and change the height of the hollow area in the extending direction of the guide rod.

[0023] In one embodiment, the deformation support includes at least one semi-circular leaf spring, and all the leaf springs are arranged around the guide rod and are fixedly connected between the base and the second counterweight;

[0024] Both ends of all the leaf springs are cross-connected with the guide rod, and the socket parts are jointly formed at the cross connections of all the leaf springs. The bellies of all the leaf springs bulge away from each other and define the hollow area. Each leaf spring has a restoring force that causes the two socket parts to move away from each other.

[0025] In one embodiment, the socket part includes a connecting rod and at least one connecting hole formed on all the leaf springs in one-to-one correspondence; both ends of the connecting rod are respectively sleeved in the at least one connecting hole; and the connecting rod has a socket hole sleeved on the guide rod.

[0026] In one embodiment, the second elastic part further includes a third spring sleeved on the guide rod. The third spring is located in the hollow area and is limited between the two socket parts and elastically expands and contracts following the change in the height of the hollow area.

[0027] In one embodiment, adjusting members are arranged at both ends of the guide rod in its own extending direction. The position of each adjusting member is adjustable in the extending direction of the guide rod, and the two socket parts are limited between the two adjusting members.

[0028] In one embodiment, there are at least two groups of the second vibration suppressors arranged corresponding to the same rotation direction, and each group of the second vibration suppressors includes at least one of the second vibration suppressors;

[0029] The projections of the elastic parts of the second vibration suppressors in the same group on the plane where the corresponding rotation direction is located are on the same circumference, and the curvature radii of the elastic parts of the second vibration suppressors in different groups are unequal and the circular angles are equal.

[0030] In one embodiment, the base has an axial direction, a first radial direction, and a second radial direction that are perpendicular to each other in pairs. The axial direction, the first radial direction, and the second radial direction are used as the three linear directions, and the three rotation directions are three directions respectively set around the axial direction, the first radial direction, and the second radial direction;

[0031] The at least two linear vibration suppressors include a first vibration suppressor and a third vibration suppressor; the elastic parts and / or the counterweight parts of the first vibration suppressor and the third vibration suppressor are different; the vibration suppression direction of the third vibration suppressor corresponds to the axial direction, and the vibration suppression directions of some of the first vibration suppressors correspond to the first radial direction, and the vibration suppression directions of some of the first vibration suppressors correspond to the second radial direction.

[0032] In one embodiment, the base is axisymmetric with respect to a symmetry axis; the plurality of vibration suppressors are configured to be symmetrically arranged with respect to the symmetry axis.

[0033] In one embodiment, an installation hole and an adjustment hole communicating with the installation hole and penetrating the outer periphery of the base are formed on the base. An adjustment member is installed in the installation hole. The adjustment member partially extends out of the adjustment hole and has a holding end located outside the base and used for abutting against the vibrating body;

[0034] The adjustment member is configured to be movable along the adjustment hole and change the extending distance of the holding end, so as to adjust the holding force of the holding end acting on the vibrating body.

[0035] A liquid storage device includes a housing and the dynamic vibration absorption device described in any one of the above. The base is coaxially installed in the housing.

[0036] A compressor assembly includes a compressor and the liquid storage device as described above. The liquid storage device is communicated with the compressor.

[0037] An air conditioner includes the above compressor assembly.

[0038] The above dynamic vibration absorption device is installed on the vibrating body through the base. When the vibrating body vibrates, the plurality of vibration suppressors can suppress the vibration in at least two linear directions and the vibration in at least one rotation direction, so as to realize the vibration suppression in multiple directions of the vibrating body. Compared with the prior art, the above dynamic vibration absorption device can suppress the vibration of the vibrating body in multiple degrees of freedom, and the vibration absorption effect is very remarkable. Description of the Drawings

[0039] Figure 1Schematic structural diagram of a dynamic vibration absorber in an embodiment of the present application;

[0040] Figure 2 is Figure 1 Schematic structural diagram of the base in the dynamic vibration absorber shown;

[0041] Figure 3 is Figure 1 Schematic structural diagram when only the first vibration suppressing body in the second direction and the third direction is installed on the base in the dynamic vibration absorber shown;

[0042] Figure 4 is Figure 3 Schematic structural diagram of the first vibration suppressing body in the structure shown;

[0043] Figure 5 is Figure 1 Schematic structural diagram when only the second vibration suppressing body in the rotation direction around the first direction is installed on the base in the dynamic vibration absorber shown;

[0044] Figure 6 is Figure 5 Schematic structural diagram of the second vibration suppressing body in the structure shown;

[0045] Figure 7 is Figure 1 Schematic structural diagram when only the second vibration suppressing body in the rotation direction around the second direction and the third direction is installed on the base in the dynamic vibration absorber shown;

[0046] Figure 8 is Figure 7 Schematic structural diagram of the second vibration suppressing body in the structure shown;

[0047] Figure 9 Schematic structural diagram of a counterweight bar in an embodiment of the present application;

[0048] Figure 10 is Figure 1 Schematic structural diagram when only the third vibration suppressing body is installed on the base in the dynamic vibration absorber shown;

[0049] Figure 11 is Figure 10 Schematic structural diagram of the third vibration suppressing body in the structure shown;

[0050] Figure 12 is Figure 11 Exploded view of the third vibration suppressing body shown;

[0051] Figure 13 Schematic structural diagram of an adjusting member in an embodiment of the present application;

[0052] Figure 14 Schematic structural diagram of a compressor assembly in an embodiment of the present application;

[0053] Figure 15 is Figure 14 a partial structural schematic diagram of the structure shown.

[0054] Explanation of reference numerals in the drawings:

[0055] 1000, compressor assembly; 100, dynamic vibration absorber; 10, base; Z, axial direction; X, first radial direction; Y, second radial direction; 11, guiding part; 11a, mounting groove; 12, mounting hole; 13, adjusting hole; 14, adjusting part; 15, material removal hole; 20, vibration suppressing body; 20a, linear vibration suppressing body; 20b, helical vibration suppressing body; 21, first vibration suppressing body; 22, second vibration suppressing body; 23, third vibration suppressing body; a, elastic part; a1, first elastic part;

[0056] a11, first spring; a12, second spring; a2, second elastic part; a21, third spring; a22, guiding rod; a23, deformation support; a24, adjusting part; g, socket part; g1, connecting rod, g2, connecting hole; g3, socket hole; h, hollow area; k, leaf spring; b, counterweight part; b1, first counterweight part; b11, slider; b12, counterweight rod; b121, rod body; b122, particle; s, cavity; b2, second counterweight part; b21, counterweight ring; 200, liquid reservoir; 201, housing; 300, compressor. Detailed implementation manners

[0057] To make the above objects, features, and advantages of the present application more apparent and understandable, the following describes the detailed implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0058] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "first direction", "radial direction", "circumferential direction", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application.

[0059] In addition, 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 quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of this application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0060] In this application, unless otherwise clearly specified and defined, terms such as "installed", "connected", "joined", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0061] In this application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or diagonally above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or diagonally below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0062] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it may be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0063] Please refer to Figure 1, in an embodiment of the present application, a dynamic vibration absorber 100 is provided, which includes a base 10 and a plurality of vibration damping bodies 20 connected to the base 10, and the base 10 is configured on a vibrating body. Among them, a part of the vibration damping bodies 20 are jointly configured to be able to damp vibrations in at least two of the three linear directions that intersect pairwise and are not coplanar, and another part of the vibration damping bodies 20 are jointly configured to be able to damp vibrations in at least one of the three rotational directions set by rotating around the three linear directions, and all the vibration damping bodies 20 are jointly configured to be able to damp vibrations in at least three of the three linear directions and the three rotational directions.

[0064] The above-mentioned dynamic vibration absorber 100 is installed on the vibrating body through the base 10. When the vibrating body vibrates, the plurality of vibration damping bodies 20 can damp vibrations in at least two linear directions and at least one rotational direction, realizing vibration damping in multiple directions of the vibrating body. Compared with the prior art, the above-mentioned dynamic vibration absorber 100 can damp vibrations of the vibrating body in multiple degrees of freedom, and the vibration damping effect is very remarkable.

[0065] Among them, the three linear directions that intersect pairwise and are not coplanar mean that they intersect pairwise and are not coplanar at the same time, and they can be three linear directions that are perpendicular to each other. The three linear directions represent 3 linear degrees of freedom, and the three rotational directions represent 3 rotational degrees of freedom. All the vibration damping bodies 20 have multiple vibration damping schemes, and can realize vibration damping in 3 degrees of freedom, 4 degrees of freedom, 5 degrees of freedom and full vibration damping in 6 degrees of freedom. And there are multiple specific combination directions, which will not be enumerated in the embodiments of the present application.

[0066] In some embodiments, the above-mentioned plurality of vibration damping bodies 20 include at least two linear vibration damping bodies 20a and at least one rotational vibration damping body 20b. Each linear vibration damping body 20a and each rotational vibration damping body 20b have a vibration damping direction. The vibration damping direction of each linear vibration damping body 20a is set corresponding to one of the three linear directions, and there is at least a component in the corresponding linear direction. The vibration damping direction of each rotational vibration damping body 20b is set corresponding to one of the three rotational directions, and there is at least a component in the corresponding rotational direction, and the vibration damping directions of all the vibration damping bodies 20 are set corresponding to at least three of the three linear directions and the three rotational directions.

[0067] At this time, the vibration damping direction of the linear vibration damper 20a is generally a straight line direction. When there is a component in the corresponding linear direction in the vibration damping direction of the linear vibration damper 20a, the vibration in this linear direction can be suppressed. When the vibration damping direction of the helical vibration damper 20b is generally an arc direction, when the vibration damping direction of the helical vibration damper 20b is coaxial with the corresponding helix, a vibration damping effect can be generated in this helix. When arranging, the vibration damping directions of at least two linear vibration dampers 20a are arranged corresponding to at least two linear directions, and the vibration damping direction of at least one helical vibration damper 20b is arranged corresponding to at least one helix, so that the entire vibration damper 20 can achieve vibration in at least three directions.

[0068] It should be noted that the vibration damping direction of the linear vibration damper 20a is not limited to a straight line direction, as long as a component can be generated in the corresponding linear direction. For example, it can also be an S-shaped direction. Preferably, when the direction of the linear vibration damper 20a is not arranged along the corresponding linear direction, other-direction vibrations will be brought during its movement of following the vibration to suppress vibration. Therefore, preferably, the components of the vibration damping directions of all linear vibration dampers 20a in other directions except the above three linear directions cancel each other out.

[0069] At the same time, the vibration damping direction of the helical vibration damper 20b is not limited to an arc direction, as long as it has a rotational trajectory concentric with the helix on the plane where the helix is located. For example, it is a spiral direction. Preferably, when the direction of the helical vibration damper 20b has not only a component coaxial with the corresponding helix, other-direction vibrations will be brought during its movement of following the vibration to suppress vibration. Therefore, preferably, the components of the vibration damping directions of all helical vibration dampers 20b in other directions except the above three helix directions cancel each other out.

[0070] Figure 1 The three linear directions shown in the figure are the axial direction Z, the first radial direction X, and the second radial direction Y that are perpendicular to each other on the base 10. Among the three helices, ROZ is the helix arranged around the axial direction Z, ROY is the helix arranged around the second radial direction Y, and ROX is the helix arranged around the first radial direction X. Figure 1 The structural scheme of the dynamic vibration absorber 100 shown in the illustrated embodiment can suppress vibrations in a total of three linear directions, namely the axial direction Z, the first radial direction X, and the second radial direction Y, and a total of three helices, namely ROZ, ROY, and ROX.

[0071] In some embodiments, please refer to Figures 2 to 8 , each vibration damper 20 includes an elastic part a and a counterweight part b. The elastic part a is connected to the base 10, the counterweight part b is arranged on the elastic part a, the elastic part a is configured to elastically expand and contract in its own deformation direction when vibrating with the base 10, and the counterweight part b moves along the deformation direction of the elastic part a when the elastic part a elastically expands and contracts. The vibration damping direction of each vibration damper 20 is consistent with the deformation direction of its own elastic part a.

[0072] The three elements of vibration control include mass, stiffness, and damping. Mass and stiffness determine the vibration reduction frequency, and damping determines the vibration reduction effect. In this embodiment, the working principle of the dynamic vibration absorber 100 is to tune the natural frequency of the dynamic vibration absorber 100 to be the same as that of the vibrating body. Using the anti-resonance principle, the inertial force of the movement of each vibration suppression body 20 in the dynamic vibration absorber 100 will act on the vibrating body in the opposite direction, thereby achieving the effect of suppressing the vibration of the vibrating body. In this embodiment, by reasonably setting the stiffness and damping of the elastic part a and the weight of the counterweight part b, the natural frequency of the dynamic vibration absorber 100 is tuned to be the same as that of the vibrating body.

[0073] When the vibrating body vibrates in a certain direction, the vibrating body drives the elastic part a in the vibration suppression body 20 arranged in this direction to perform elastic expansion and contraction. The elastic part a will consume vibration energy during the elastic expansion and contraction process. At the same time, the counterweight part b, as the size of the inertial mass, can increase the expansion and contraction stroke of the elastic part a and increase the reaction force, thereby achieving anti-resonance to suppress the vibration in the direction consistent with the deformation direction of the elastic part a.

[0074] Specifically in one embodiment, at least two linear vibration suppression bodies 20a include the first vibration suppression body 21, and at least one helical vibration suppression body 20b includes the second vibration suppression body 22. The elastic part a and the counterweight part b of the first vibration suppression body 21 and / or the second vibration suppression body 22 are respectively the first elastic part a1 and the first counterweight part b1. A guiding part 11 is constructed on the base 10. The first elastic part a1 is correspondingly installed on the guiding part 11, and the guiding part 11 guides the first elastic part a1 to elastically expand and contract only in its own deformation direction. The first counterweight part b1 is fixedly connected to the first elastic part a1 and moves along the guiding part 11 when the first elastic part a1 elastically expands and contracts.

[0075] When assembling the dynamic vibration absorber 100, please refer to Figure 2 、 Figure 3 、 Figure 5 and Figure 7 , the first elastic part a1 is installed on the guiding part 11. The guiding part 11 guides the first elastic part a1 to elastically expand and contract along the set deformation direction, which helps to ensure the consistency between the deformation direction of the first elastic part a1 and the set direction. The guiding path of the guiding part 11 corresponds to the vibration suppression direction of the vibration suppression body 20. When the first elastic part a1 elastically deforms along the guiding part 11 on the guiding path under the action of vibration, due to the inertial action of the counterweight part b thereon, it reciprocates along the guiding part 11 on this guiding path, and gradually consumes the vibration energy during the reciprocating movement, thereby achieving the purpose of vibration suppression.

[0076] Understandably, when the vibration suppression direction of the first vibration suppressor 21 is a linear direction, the deformation direction of the first elastic part a1 of the first vibration suppressor 21 is a linear direction. When the vibration suppression direction of the first vibration suppressor 21 is a non-linear direction, the deformation direction of the first elastic part a1 of the first vibration suppressor 21 is a non-linear direction. Preferably, the deformation direction of the first elastic part a1 of the first vibration suppressor 21 is a linear direction. At this time, the arrangement of each first vibration suppressor 21 is more flexible, and it is also easier to design its vibration suppression direction to avoid vibration in other directions except the three linear directions. Similarly, the first elastic part a1 of the second vibration suppressor 22 undergoes elastic expansion and contraction on an arc path to avoid vibration in other directions except the three rotation directions, simplifying the design of the vibration suppression direction of the first elastic part a1 of the second vibration suppressor 22.

[0077] In a further embodiment, continue to refer to Figure 2 、 Figure 3 、 Figure 5 and Figure 7 , the guiding part 11 is formed by a mounting groove 11a constructed on the base 10. The first elastic part a1 is installed in the mounting groove 11a, and the extending direction of the mounting groove 11a is consistent with the deformation direction of the accommodated first elastic part a1. The first counterweight part b1 slides along the mounting groove 11a when the first elastic part a1 elastically expands and contracts.

[0078] At this time, the first elastic part a1 is installed by using the mounting groove 11a constructed on the base 10, realizing the internal installation of the first elastic part a1 and the guiding of the deformation direction. At the same time, the first counterweight part b1 can also slide along the mounting groove 11a to further correct the deformation direction of the first elastic part a1 through the first counterweight part b1. In addition, using the mounting groove 11a as the guiding part 11 is not only convenient for manufacturing, but also can reduce the consumption of materials of the base 10, and at the same time makes the overall dynamic vibration absorber 100 more concise. Of course, in other embodiments, the guiding part 11 can also be components such as a guide post, and is not specifically limited.

[0079] Understandably, when the first elastic part a1 elastically expands and contracts on a straight path, its corresponding mounting groove 11a is a straight groove. When the first elastic part a1 elastically expands and contracts on an arc path, its corresponding mounting groove 11a is an arc groove.

[0080] In a preferred embodiment, please refer to Figure 4 、 Figure 6 and Figure 8, the first elastic part a1 includes a first spring a11 and a second spring a12, and the first counterweight part b1 includes a slider b11 and a counterweight rod b12. The first spring a11 and the second spring a12 are arranged adjacent to each other along the corresponding deformation directions. The slider b11 is fixedly connected between the two pairs of ends of the first spring a11 and the second spring a12. The opposite ends of the first spring a11 and the second spring a12 are both connected to the guiding part 11. The counterweight rod b12 is fixed on the slider b11, and the slider b11 is slidably arranged along the guiding part 11.

[0081] At this time, the counterweight rod b12 is connected to the first spring a11 and the second spring a12 through the slider b11. During anti-resonance, when one of the first spring a11 and the second spring a12 is compressed, the other is stretched. In this way, a force can be applied in the moving direction of the counterweight rod b12, enabling the counterweight rod b12 to quickly respond to the deformation of the first spring a11 and the second spring a12 and move. Moreover, the counterweight rod b12 is slidably arranged on the guiding part 11 through the slider b11, and the movement of the counterweight rod b12 is smoother.

[0082] In one example, continue to refer to Figure 2 , Figure 3 , Figure 5 and Figure 7 , the opposite ends of the first spring a11 and the second spring a12 are connected in the installation groove 11a, and the slider b11 moves along the installation groove 11a. In other embodiments, the structure of the first elastic part a1 is not limited to this. For example, it can be constructed by components such as elastic sheets and elastic rubbers.

[0083] Furthermore, the slider b11 has a mating hole, and the counterweight rod b12 is detachably inserted into the mating hole. In this way, it is convenient to adjust the mass of the counterweight part b in the vibration damping body 20, and thus adjust the vibration damping frequency of the dynamic vibration absorber 100.

[0084] In a further embodiment, refer to Figure 9 , the counterweight rod b12 includes a rod body b121 and a plurality of particles b122. The rod body b121 is detachably fixed on the slider b11 and defines a cavity s, and the plurality of particles b122 are filled in the cavity s. At this time, the weight of the counterweight rod b12 can be adjusted by disassembling the rod body b121 according to the filling quantity of the particles b122, so as to achieve the effect of adjusting the vibration damping frequency of the dynamic vibration absorption unit.

[0085] Furthermore, a plurality of particles b122 are configured to be able to collide with each other within the cavity s. When the vibrating body vibrates, the particles b122 in the counterweight rod b12 absorb the vibration energy of the vibrating body and jump and collide within the cavity s, and the vibration energy is dissipated during the jumping collision, further improving the vibration damping effect. Preferably, the filling rate of the particles b122 in the cavity s is 50% to 70%. At this time, the collision probability between the particles b122 is large, the energy dissipation is large, and the vibration damping effect is good.

[0086] Among them, the particles b122 are preferably metal particles b122 with a relatively large mass. At this time, the weight adjustment effect on the counterweight rod b12 is better. The metal particles b122 can be metal iron particles b122, and the cost is relatively low.

[0087] Specifically in the embodiment, please refer to Figures 10 to 11 , at least two linear vibration suppressors 20a include a third vibration suppressor 23. The elastic part a and the counterweight part b of the third vibration suppressor 23 are respectively a second elastic part a2 and a second counterweight part b2. The second elastic part a2 includes a deformation support member a23 and a guide rod a22 extending along its own deformation direction. The deformation support member a23 is fixedly connected to the base 10 and the second counterweight part b2 on both sides in its own deformation direction, and has two socket parts g, and defines a hollow area h located between the two socket parts g. Both of the two socket parts g are sleeved on the guide rod a22 and are limited between the two ends of the guide rod a22 in its own extending direction. The deformation support member a23 is configured such that when an elastic deformation occurs, the two socket parts g slide along the guide rod a22 and change the height of the hollow area h in the extending direction of the guide rod a22.

[0088] At this time, the second counterweight part b2 is supported on the base 10 by the deformation support member a23, and energy consumption is achieved through the deformation of the deformation support member a23 in its own deformation direction when the vibrating body vibrates, so as to achieve the effect of suppressing vibration. Using the guide rod a22 to guide the deformation direction of the deformation support member a23 helps to ensure the vibration damping effect. At the same time, when the vibrating body vibrates, the socket part g of the deformation support member a23 is controlled to move on the guide rod a22, and the height of its hollow area h in the axial direction Z increases or decreases when moving, so as to realize the expansion and contraction of the deformation support member a23 in its own deformation direction. Understandably, the deformation support itself has elasticity. When the socket part g moves under the action of the vibration of the vibrating body, it will generate a restoring force that makes the socket part g move in the opposite direction, so as to have a damping effect. The structure of the deformation support member a23 is novel. Compared with the structures of common elastic elements such as springs, the damping effect and stiffness performance are better, the support effect on the second counterweight part b2 is better, and the vibration damping effect is better.

[0089] It should be noted that both ends of the deformation support member a23 are respectively fixed on the base 10 and the second counterweight portion b2, and the guide rod a22 is installed on the deformation support member a23 through the socket portion g.

[0090] In a further embodiment, continue to refer to Figures 10 to 11 , the deformation support member a23 includes at least one leaf spring k in a semi-circular shape. All the leaf springs k are arranged around the guide rod a22 and are fixedly connected between the base 10 and the second counterweight portion b2. Both ends of all the leaf springs k are cross-connected to the guide rod a22, and a socket portion g is formed jointly at the cross connection of all the leaf springs k. The bellies of all the leaf springs k protrude away from each other and define a hollow area h. Each leaf spring k has a restoring force that promotes the mutual separation of the two socket portions g.

[0091] The semi-circular leaf spring k has a restoring force that causes its two ends to move away from each other. Under the action of this restoring force, when the vibrating body vibrates and drives the socket portion g to move along the guide rod a22 until the two socket portions g approach each other, the restoring forces of all the leaf springs k cause the two socket portions g to move away from each other, thereby achieving a damping effect and consuming energy to suppress vibration. At this time, at least one leaf spring k is used to construct the deformation support member a23, which has a simple structure and a good damping effect. Since all the leaf springs k are arranged around the guide rod a22, the deformation uniformity of the deformation support member a23 can be better, and it can provide a better support for the second counterweight portion b2.

[0092] Among them, the leaf spring k can be fixedly connected to the base 10 and the second counterweight portion b2 by welding. Fixed connection means permanent connection. The cross-connection of the two ends of the leaf spring k to the guide rod a22 means that the extension directions of the two ends of the leaf spring k intersect with the extension direction of the guide rod a22, and the two ends of the leaf spring k are sleeved on the guide rod a22. The belly refers to the part located between the two cross connections. Both ends of the leaf spring k are connected to the guide rod a22 at the same cross connection. At this time, each leaf spring k has a cut-off portion (such as a cut-off groove, a cut-off hole, etc.) at the corresponding cross connection so that all the leaf springs k can fit with each other in a concave-convex manner at the cross connection.

[0093] Preferably, all the leaf springs k are symmetrically arranged around the guide rod a22, which can make the deformation uniformity of the deformation support member a23 better. Optionally, there are two leaf springs k, and the two leaf springs k are symmetrically arranged around the guide rod a22. Not only is the deformation uniformity of the deformation support member a23 good and it can provide a good support for the second counterweight portion b2, but also the cost is lower compared to setting a larger number of leaf springs k.

[0094] In a further embodiment, please refer to Figure 12 , the socket portion g includes a connecting rod and at least one connecting hole formed on all the leaf springs k in one-to-one correspondence. Both ends of the connecting rod are respectively sleeved in at least one connecting hole, and the connecting rod has a socket hole g3 sleeved on the guide rod a22.

[0095] At this time, the connecting rod is used to connect all the leaf springs k and the guide rod a22, which is convenient for assembly and replacement of the leaf springs k, so as to adjust the stiffness and deformation ability of the deformation support a23, and further adjust the damping frequency of the dynamic vibration absorber 100.

[0096] Optionally, the connecting rod is pivotally connected to the connecting hole. When the leaf spring k deforms, it can rotate around the connecting rod to change the distance from its abdomen to the guide rod a22, thereby adjusting the height of the hollow area h. At this time, the protruding distance change range of the abdomen is larger, the deformation force is greater, more energy is consumed, and the damping effect is better.

[0097] Preferably in the embodiments, refer to Figures 10 to 12 , the second elastic part a2 further includes a third spring a21 sleeved on the guide rod a22. The third spring a21 is located in the hollow area h and is limited between the two socket parts g, and elastically expands and contracts following the change of the height of the hollow area h.

[0098] When the deformation support a23 elastically expands and contracts, it synchronously drives the third spring a21 to expand and contract. The third spring a21 reacts on the deformation support a23, which can improve the overall elastic deformation ability of the second elastic part a2, so that the vibration energy consumed when the second elastic part a2 elastically expands and contracts increases, which helps to improve the damping effect.

[0099] Further in the embodiments, refer to Figure 11 and Figure 12 , adjustment members a24 are arranged at both ends of the guide rod a22 in the axial direction Z. The position of each adjustment member a24 in the extending direction of the guide rod a22 is adjustable, and the two socket parts g are limited between the two adjustment members a24.

[0100] At this time, by adjusting the position of the adjustment member a24 on the guide rod a22 to adjust the moving range of the socket part g, the stiffness adjustment of the deformation support a23 can be realized. The smaller the distance between the two adjustment members a24, the greater the stiffness of the deformation support a23, and the vibration absorption frequency of the third vibration suppression body 23 can be adjusted within a certain range.

[0101] Specifically optionally, the adjustment member a24 is a nut, and the guide rod a22 is a screw rod, and the nut is screwed onto the screw rod. In this way, when adjusting the screwing-in distance of the nut, the moving range of the socket part g can be adjusted, the operation is simple, the cost is low, and it is easy to implement. Of course, in other embodiments, other ways can also be adopted to construct the adjustment member a24, which is not specifically limited.

[0102] In a specific embodiment, refer to Figure 10, the second elastic part a2 includes multiple ones, and the second counterweight part b2 includes one. The multiple second elastic parts a2 are all connected between the base 10 and the second counterweight part b2, and are symmetrically arranged around the axis of the second counterweight part b2. At this time, the third vibration suppression body 23 is formed by constructing multiple second elastic parts a2 and one second counterweight part b2, which can reduce the cumbersome disassembly and assembly when there are multiple second counterweight parts b2, and has a good vibration suppression effect. In specific applications, the axis of the second counterweight part b2 coincides with the corresponding linear direction.

[0103] Furthermore, the second counterweight part b2 is a counterweight ring b21, and a material removal hole 15 is constructed on the base 10. At this time, the settings of the counterweight ring b21 and the material removal hole 15 can reduce the material cost of the dynamic vibration absorber 100.

[0104] In some embodiments, the second vibration suppression bodies 22 corresponding to the same rotation direction arrangement include at least two groups, and each group of the second vibration suppression bodies 22 includes at least one second vibration suppression body 22. The projections of the elastic parts a of the second vibration suppression bodies 22 in the same group on the plane where the corresponding rotation direction is located are located on the same circumference, and the curvature radii of the elastic parts a of the second vibration suppression bodies 22 in different groups are not equal and the central angles are equal.

[0105] At this time, there are multiple groups of second vibration suppression bodies 22 arranged for the same rotation direction, and the curvature radii of the elastic parts a of each group of the second vibration suppression bodies 22 are not equal and the central angles are equal, that is to say, the stiffnesses of the elastic parts a of each group of the second vibration suppression bodies 22 are not equal, and further the vibration damping frequencies of each group of the second vibration suppression bodies 22 are not equal. In actual applications, the corresponding groups of the second vibration suppression bodies 22 can be selected and installed according to the needs of the vibration damping frequency, so as to realize the adjustment of the vibration absorption frequency in the rotation direction.

[0106] In actual applications, the guiding part 11 on the base 10 for installing the second vibration suppression body 22 arranged along the rotation direction ROZ set along the circumferential axis Z is the first guiding part 11. Correspondingly, multiple groups of the first guiding parts 11 are arranged on the base 10, and the multiple groups of the first guiding parts 11 are symmetrically arranged relative to the axis Z. Each group of the first guiding parts 11 has multiple first guiding parts 11, and the middle parts of the multiple first guiding parts 11 in the same group are spaced on the same radial direction of the base 10, and the lengths of the first guiding parts 11 in the same group increase sequentially along the direction away from the axis Z.

[0107] Among them, the first guiding part 11 is arc-shaped, and its length is its arc length. During actual operations, the second vibration suppression body 22 can be selectively installed on the first guiding part 11 (selected according to different vibration damping frequency requirements), and on at least two first guiding parts 11 located on the circumference with the center on the axis Z, the second vibration suppression body 22 is installed or not installed at the same time.

[0108] In one embodiment, refer to Figure 1, the base 10 has mutually perpendicular axial direction Z, first radial direction X, and second radial direction Y. The axial direction Z, first radial direction X, and second radial direction Y serve as three linear directions, and the three helical directions are three directions respectively set around the axial direction Z, first radial direction X, and second radial direction Y. At least two linear vibration suppressors 20a include a first vibration suppressor 21 and a third vibration suppressor 23, and the elastic parts a and / or the counterweight parts b of the first vibration suppressor 21 and the third vibration suppressor 23 are different. The vibration suppression direction of the third vibration suppressor 23 is set corresponding to the axial direction Z, and the vibration suppression directions of some of the first vibration suppressors 21 correspond to the first radial direction X, and the vibration suppression directions of some of the first vibration suppressors 21 correspond to the second radial direction Y.

[0109] In this embodiment, the third vibration suppressor 23 is used to suppress the vibration in the axial direction Z, and the first vibration suppressor 21 is used to suppress the vibration in the first radial direction X and the second radial direction Y. The first vibration suppressor 21 adopts the structure in the above embodiment to implement vibration reduction in the first radial direction X and the second radial direction Y, with a simple structure and convenient installation. The third vibration suppressor 23 adopts the structure in the above embodiment to implement vibration reduction in the axial direction Z, which can reduce the size of the base 10 in the axial direction Z, contribute to the structural compactness of the entire dynamic vibration absorption device 100, reduce the consumption of materials and manufacturing costs. At the same time, since its counterweight part b is supported at one end of the elastic part a, arranging it along the axial direction Z is more helpful to ensure the movement stability of the counterweight part b.

[0110] Of course, in other embodiments, the specific arrangement manners of the first vibration suppressor 21 and the third vibration suppressor 23 are not limited to the above manners.

[0111] In some embodiments, the base 10 is axially symmetric with respect to a pair of symmetry axes, and a plurality of vibration suppressors 20 are configured to be axially symmetrically arranged with respect to the symmetry axes. At this time, the entire dynamic vibration absorption device 100 is axially symmetrically arranged, which can avoid increasing the vibration intensity of the vibrating body due to the asymmetry of its own structure, and is more helpful to ensure the overall vibration suppression effect.

[0112] Specifically in the embodiment, refer to Figure 1 , the first vibration suppressors 21 arranged along the first radial direction X and the second radial direction Y respectively include at least one and are symmetrically arranged together with respect to the symmetry axis. The second vibration suppressors 22 arranged along the helical directions around the first radial direction X and the second radial direction Y respectively include at least one and are symmetrically arranged together with respect to the symmetry axis. At this time, not only is there a good vibration reduction effect in the first radial direction X, the second radial direction Y, the helical direction around the first radial direction X, and the helical direction around the second radial direction Y, but also the manufacturing cost of the dynamic vibration reduction device can be reduced compared with setting more first vibration suppressors 21 and second vibration suppressors 22. At the same time, being axially symmetrically arranged can ensure that the vibration reduction capabilities in all directions are relatively balanced.

[0113] In some embodiments, refer to Figure 1, a plurality of vibration suppressors 20 are arranged on the same side of the base 10 in the axial direction Z. At this time, the overall structure of the vibration absorption and damping device is simpler and occupies less space.

[0114] In some embodiments, referring to Figure 1 and Figure 13 , the base 10 is constructed with a mounting hole 12 and an adjustment hole 13 that communicates with the mounting hole 12 and penetrates the outer periphery of the base 10. An adjustment member 14 is installed in the mounting hole 12. A part of the adjustment member 14 extends out of the adjustment hole 13 and has a holding end located outside the base 10 and used to abut against the vibrating body. The adjustment member 14 is configured to be movable along the adjustment hole 13 and change the extending distance of the holding end, so as to adjust the holding force exerted by the holding end on the vibrating body.

[0115] When installing the dynamic vibration absorption device 100, after placing the base 10 inside the vibrating body, adjust the extending distance of the adjustment member 14 and make the base 10 tightly abut against the inside of the vibrating body. In this way, it can adapt to the installation of vibrating bodies with different space sizes and improve the adaptation range of the dynamic vibration absorption device 100.

[0116] Specifically in the embodiment, the adjustment member 14 includes a bolt and a nut. The bolt is installed in the adjustment hole 13 and extends out of the adjustment hole 13, and the nut is installed in the mounting hole 12. The bolt is screwed onto the nut. By adjusting the toothed connection position between the bolt and the nut, the extending distance of its holding end is adjusted, which is convenient to operate and economical.

[0117] The above-mentioned dynamic vibration absorption device 100 is installed on the vibrating body through the base 10. When the vibrating body vibrates, the plurality of vibration suppressors 20 can suppress vibrations in at least two linear directions and vibrations in at least one rotational direction, realizing vibration suppression in multiple directions of the vibrating body. Compared with the prior art, the above-mentioned dynamic vibration absorption device 100 can suppress vibrations of the vibrating body in multiple degrees of freedom, and the vibration absorption effect is very remarkable.

[0118] Based on the same inventive concept, in an embodiment of the present application, a liquid storage device 200 is provided, which includes a housing 201 and the dynamic vibration absorption device 100 provided in any of the above embodiments. The base 10 is coaxially installed inside the housing 201. The liquid storage device 200 has all the beneficial effects of the above embodiments and will not be elaborated here.

[0119] The liquid storage device 200 can be a gas-liquid separator. As for the specific structure of the gas-liquid separator, it can refer to the existing structure and will not be elaborated here.

[0120] Based on the same inventive concept, referring to Figure 14 and Figure 15, in an embodiment of the present application, a compressor assembly 1000 is provided, which includes a compressor 300 and the above-mentioned liquid reservoir 200, and the liquid reservoir 200 is communicated with the compressor 300. The compressor 300 has the beneficial effects of all the above embodiments, which will not be elaborated here.

[0121] Based on the same inventive concept, in an embodiment of the present application, an air conditioner is provided, which includes the above-mentioned compressor assembly 1000. The air conditioner has the beneficial effects of all the above embodiments, which will not be elaborated here.

[0122] The technical features of the above-mentioned embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0123] The above-mentioned embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A dynamic vibration absorber, characterized in that, Comprising: A base (10), configured on a vibrating body; And A plurality of vibration damping bodies (20) connected to the base (10); A part of the vibration damping bodies (20) are jointly configured to be able to suppress vibrations in at least two of three linear directions that intersect pairwise and are not coplanar, and another part of the vibration damping bodies (20) are jointly configured to be able to suppress vibrations in at least one of three rotational directions rotationally provided around the three linear directions; the plurality of vibration damping bodies (20) include at least two linear vibration damping bodies (20a) and at least one rotational vibration damping body (20b); each of the linear vibration damping bodies (20a) and each of the rotational vibration damping bodies (20b) has a vibration damping direction; Wherein, the vibration damping direction of each linear vibration damping body (20a) is set corresponding to one of the three linear directions, and there is at least a component in the corresponding linear direction; the vibration damping direction of each rotational vibration damping body (20b) is set corresponding to one of the three rotational directions, and there is at least a component in the corresponding rotational direction; and the vibration damping directions of all the vibration damping bodies (20) are set corresponding to at least three of the three linear directions and the three rotational directions; Each vibration damping body (20) includes an elastic part (a) and a weight part (b), the elastic part (a) is connected to the base (10), the weight part (b) is arranged on the elastic part (a), the elastic part (a) is configured to elastically expand and contract in its own deformation direction when vibrating with the base (10), and the weight part (b) moves along the deformation direction of the elastic part (a) when the elastic part (a) elastically expands and contracts; wherein, the vibration damping direction of each vibration damping body (20) is consistent with the deformation direction of its own elastic part (a); The at least two linear vibration damping bodies (20a) include a third vibration damping body (23), and the elastic part (a) and the weight part (b) of the third vibration damping body (23) are respectively a second elastic part (a2) and a second weight part (b2); The second elastic part (a2) includes a deformation support member (a23) and a guide rod (a22) extending along its own deformation direction, the deformation support member (a23) fixedly connects the base (10) and the second weight part (b2) respectively on both sides in its own deformation direction, and has two socket parts (g) and defines a hollow area (h) located between the two socket parts (g); both of the socket parts (g) are sleeved on the guide rod (a22) and are limited between the two ends in the extending direction of the guide rod (a22) itself; The deformation support member (a23) is configured to, when elastically deforming, the two socket parts (g) slide along the guide rod (a22) and change the height of the hollow area (h) in the extending direction of the guide rod (a22).

2. The dynamic vibration absorber according to claim 1, characterized in that The vibration damping direction of each linear vibration damping body (20a) is linear and arranged along the corresponding linear direction, and the vibration damping direction of each rotational vibration damping body (20b) is arc-shaped and arranged along the corresponding rotational direction.

3. The dynamic vibration absorber according to claim 1 or 2, characterized in that, The at least two linear vibration suppressors (20a) include a first vibration suppressor (21), the at least one helical vibration suppressor (20b) includes a second vibration suppressor (22), and the elastic parts (a) and the counterweight parts (b) of the first vibration suppressor (21) and / or the second vibration suppressor (22) are respectively a first elastic part (a1) and a first counterweight part (b1); A guiding part (11) is formed on the base (10), the first elastic part (a1) is correspondingly installed on the guiding part (11), and the guiding part (11) guides the first elastic part (a1) to elastically expand and contract only in its own deformation direction; The first counterweight part (b1) is fixedly connected to the first elastic part (a1) and moves along the guiding part (11) when the first elastic part (a1) elastically expands and contracts.

4. The dynamic vibration absorber according to claim 3, characterized in that, The first elastic part (a1) includes a first spring (a11) and a second spring (a12), and the first counterweight part (b1) includes a slider (b11) and a counterweight rod (b12); The first spring (a11) and the second spring (a12) are arranged adjacent to each other along the corresponding deformation direction; the slider (b11) is fixedly connected between the opposite ends of the first spring (a11) and the second spring (a12), and the opposite ends of the first spring (a11) and the second spring (a12) are both connected to the guiding part (11); The counterweight rod (b12) is fixed on the slider (b11), and the slider (b11) is slidably arranged along the guiding part (11).

5. The dynamic vibration absorber according to claim 4, characterized in that, The counterweight rod (b12) includes a rod body (b121) and a plurality of particles (b122), the rod body (b121) is detachably fixed to the slider (b11) and defines a cavity (s), and the plurality of particles (b122) are filled in the cavity (s).

6. The dynamic vibration absorber according to claim 5, wherein, The plurality of particles (b122) are configured to be able to collide with each other in the cavity (s).

7. The dynamic vibration absorber according to claim 1, characterized in that, The deformation support (a23) includes at least one semi-circular leaf spring (k), all the leaf springs (k) are arranged around the guide rod (a22), and are fixedly connected between the base (10) and the second counterweight part (b2); Both ends of all the leaf springs (k) are cross-connected with the guide rod (a22), and a socket part (g) is jointly formed at the cross connection of all the leaf springs (k). The bellies of all the leaf springs (k) protrude away from each other and define the hollow area (h), and each leaf spring (k) has a restoring force that causes the two socket parts (g) to move away from each other.

8. The dynamic vibration absorber according to claim 7, characterized in that, The socket part (g) includes a connecting rod (g1) and at least one connecting hole (g2) formed correspondingly on all the leaf springs (k). The two ends of the connecting rod (g1) are respectively sleeved in the at least one connecting hole (g2); a socket hole (g3) for sleeving the guide rod (a22) is formed on the connecting rod (g1).

9. The dynamic vibration absorber according to claim 1, characterized in that, The second elastic part (a2) further includes a third spring (a21) sleeved on the guide rod (a22). The third spring (a21) is located in the hollow area (h), is limited between the two socket parts (g), and elastically expands and contracts following the change in the height of the hollow area (h).

10. The dynamic vibration absorber according to claim 1, characterized in that, Adjusting members (a24) are arranged at both ends of the guide rod (a22) in its own extending direction. The position of each adjusting member (a24) is adjustable in the extending direction of the guide rod (a22), and the two socket parts (g) are limited between the two adjusting members (a24).

11. The dynamic vibration absorber according to claim 3, characterized in that, Corresponding to the same helical direction arrangement, there are at least two groups of the second vibration damping bodies (22), and each group of the second vibration damping bodies (22) includes at least one second vibration damping body (22); The projections of the elastic parts (a) of the second vibration damping bodies (22) in the same group on the plane where the corresponding helical direction is located are on the same circumference, and the curvature radii of the elastic parts (a) of the second vibration damping bodies (22) in different groups are not equal and the central angles are equal.

12. The dynamic vibration absorber according to claim 1 or 2, characterized in that, The base (10) has an axial direction (Z), a first radial direction (X), and a second radial direction (Y) that are perpendicular to each other in pairs. The axial direction (Z), the first radial direction (X), and the second radial direction (Y) are used as the three linear directions, and the three helical directions are three directions respectively set around the axial direction (Z), the first radial direction (X), and the second radial direction (Y); The at least two linear vibration damping bodies (20a) include a first vibration damping body (21) and a third vibration damping body (23). The elastic parts (a) and / or the weight parts (b) of the first vibration damping body (21) and the third vibration damping body (23) are different; the vibration damping direction of the third vibration damping body (23) is set corresponding to the axial direction (Z), and the vibration damping directions of some of the first vibration damping bodies (21) are corresponding to the first radial direction (X), and the vibration damping directions of some of the first vibration damping bodies (21) are corresponding to the second radial direction (Y).

13. The dynamic vibration absorber according to claim 1, wherein, The base (10) is axisymmetric with respect to a symmetry axis; the plurality of vibration damping bodies (20) are configured to be arranged axisymmetrically with respect to the symmetry axis.

14. The dynamic vibration absorber according to claim 1, characterized in that, An installation hole (12) and an adjustment hole (13) that communicates with the installation hole (12) and penetrates the outer periphery of the base (10) are formed on the base (10). An adjustment member (14) is installed in the installation hole (12). The adjustment member (14) partially extends out of the adjustment hole (13) and has a abutting end located outside the base (10) and used for abutting against the vibrating body; The adjustment member (14) is configured to be movable along the adjustment hole (13) and change the extending distance of the abutting end, so as to adjust the abutting force exerted by the abutting end on the vibrating body.

15. A liquid reservoir, characterized in that, It includes a housing (201) and the dynamic vibration absorber (100) according to any one of claims 1 to 14, and the base (10) is coaxially installed in the housing (201).

16. A compressor assembly, characterized in that, It includes a compressor (300) and the liquid storage device (200) according to claim 15, and the liquid storage device (200) is communicated with the compressor (300).

17. An air conditioner, characterized in that, Comprising a compressor assembly as claimed in claim 16.

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